KR20140089419A - Heater, and fixing device and drying device provided with same - Google Patents
Heater, and fixing device and drying device provided with same Download PDFInfo
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- KR20140089419A KR20140089419A KR1020147015146A KR20147015146A KR20140089419A KR 20140089419 A KR20140089419 A KR 20140089419A KR 1020147015146 A KR1020147015146 A KR 1020147015146A KR 20147015146 A KR20147015146 A KR 20147015146A KR 20140089419 A KR20140089419 A KR 20140089419A
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- wiring portion
- heater
- heat generating
- resistance
- resistance heating
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
- H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
- H05B3/26—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base
- H05B3/262—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base the insulating base being an insulated metal plate
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
- H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
- H05B3/26—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base
- H05B3/265—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base the insulating base being an inorganic material, e.g. ceramic
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/002—Heaters using a particular layout for the resistive material or resistive elements
- H05B2203/003—Heaters using a particular layout for the resistive material or resistive elements using serpentine layout
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/013—Heaters using resistive films or coatings
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/016—Heaters using particular connecting means
Abstract
A heater according to the present invention comprises a base portion 11 having a long shape and a plurality of parallel wirings formed in an electrically insulated state with respect to the base portion on the surface or inside of the base portion 11, The wiring portion 15 and at least two power supply terminal portions are connected to one terminal portion 17 and the other terminal portion 17 through the resistance heating wiring portion 15 in order to supply electric power to the resistance heat generating wiring portion 15. [ , And the resistance heating wiring portion (15) includes a material having a resistance value temperature coefficient of 500 to 4,400 ppm / DEG C, and the parallel wiring includes a sloped rectangle Pattern.
Description
The present invention relates to an elongated heater having a resistance heating wiring portion that generates heat by energization, and a fixing device and a drying device having the same.
As a heating means for heat treatment, a stainless steel heater, a ceramic heater, or the like having a resistance heating wiring portion is known. The apparatus having such a heater is used in a wide range of applications, and a stable heat treatment is performed at a desired temperature. For example, in order to form an image on the surface of a recording medium such as paper or film by using an image forming apparatus such as an electrophotographic printing machine or a copying machine, a long ceramic heater is arranged in the image forming apparatus , Toner, ink, and the like. A specific image forming method is a method in which a recording medium having a toner image unfixed on its surface is fed between a fixing roll equipped with a heater and a pressing roll and passed through a pressure contact portion therebetween to fix the recording medium. At this time, it is general to perform the recording medium while moving the recording medium in the width direction of the elongated heater (the direction perpendicular to the longitudinal direction of the heater). Thus, there has been studied a heater capable of suppressing temperature unevenness and performing stable heat treatment independently of the size of the recording medium. As a reason for this examination, considering the case where a conventional fixing heater notifies a paper of a maximum length (width) or a paper of a smaller size that can be notified (communicated) with respect to the entire length, And that the power supply is switched and operated according to the notification size. In this case, when a paper having a length (width) equal to the total length of the fixing heater is notified, there is a problem that the temperature of the entire heating element is lowered. Further, when a paper of a small size having a length (width) shorter than the entire length of the fixing heater is notified, the temperature of the area which is not notified locally rises, making it difficult to control the temperature in the notification area, There is a problem that the fixing efficiency in the paper under notification also decreases. In addition, there was a problem such as causing damage to other peripheral parts.
In order to suppress the above problem, the following techniques are known.
Patent Document 3 discloses a heat generating resistor comprising a substrate having a long flat plate formed of a heat-resistant / insulating material, a heat generating resistor formed on one surface of the substrate, a power supply electrode portion formed to supply power to the heat generating resistor, Wherein the heat generating resistor has a first resistive element having a first resistivity value formed at the center in the longitudinal direction and a second resistivity value smaller than the first resistivity connected to both ends of the first resistive resistor, And a second heat generating resistor connected in series with the second heat generating resistor.
[0003] In an image forming apparatus such as an electrophotographic copying machine and a printer, an image heating and fixing apparatus for thermally fixing an unfixed toner image formed and supported on a recording material such as a transferring material or a photosensitive paper as a permanent fixing image, A film heating type apparatus is known.
This has a heater and a film in which one side is slidably moved with the heater and the other side is moved in contact with the recording material to move together and the unfixed toner image is thermally fixed to the recording material by the heat from the heater through the film I will.
In such a film heating type apparatus, since the heater and the film as a member for conducting the heat of the heater to the recording material can be made to have a low heat capacity, power saving and shortening of the weight time (quick start property) Is possible. That is, the time for raising the temperature of the apparatus from the cold state to the predetermined temperature is shortened, and it is not necessary to conduct the energization heating of the heater in the air. Further, even if the image forming apparatus is notified immediately after the power is turned on, the heater can be sufficiently heated to a predetermined temperature until the recording material reaches the fixing portion, thereby suppressing the power consumption to a low level, It is possible.
It is known that a ceramic heater is suitable as a heating member having a low heat capacity and a high heating rate. This heater includes, for example, a ceramic substrate (for example, an alumina substrate) having electrical insulation, heat resistance, or good thermal conductivity, a resistance heating element For example, silver-palladium) (hereinafter referred to as an AC line), and supplies power to the resistance heating element to generate heat. The heater is provided with a secondary system circuit (hereinafter referred to as a DC line) including a thermoelectric element (for example, a thermistor), and the heater is controlled by a temperature regulation control system to which the DC line is connected. The supply power to the resistance heating element is controlled so that the temperature is adjusted to the set temperature.
As a safety countermeasure for an apparatus having such a heater, a safety element such as a thermal fuse is interposed in series with the AC line, and the safety element is placed in contact with or close to the heater. And the power supply to the resistance heating element is urgently cut off.
In addition, as a heater for which safety measures are taken, a heater substrate made of SUS430 or the like, an insulating glass layer having a glass transition point T1 formed on the conductor substrate, a resistor pattern having a glass transition point T2 formed on the insulating glass layer, And a glass transition point T3 formed on the resist pattern and the conductor pattern, wherein the relationship between the glass transition points of the respective layers formed on the conductor substrate satisfies T1> T3 > = T2 to T1 > T2 > = T3 is known, which is suitable for a transfer-type electrophotographic process (refer to Patent Document 4).
[0003] As a drier having a heat generating resistor, for example, there is known a drier having the self-regulating electric resistance heating element disclosed in
As described above, the phenomenon that the temperature of the heater rises in an area where the recording medium is not notified is not completely eliminated in reality, but a member or apparatus that further suppresses this problem is required.
An object of the present invention is to provide a heater capable of suppressing a local temperature rise of a resistance heating wiring portion at the time of use and performing a stable heat treatment without depending on the size thereof and suppressing temperature unevenness, And a drying device.
Further, in the image forming apparatus such as a fixing device, an electrophotographic copying machine, a printer, etc., including resistance heating wiring, when the thermal runaway occurs, the resistance heating wiring portion reaches a high temperature such as, for example, 800 DEG C .
SUMMARY OF THE INVENTION It is an object of the present invention to provide a heater in which power supply to the resistance heat generating wiring portion is stopped when the resistance heat generating wiring portion that is generating heat becomes a predetermined temperature or more by thermal runaway or the like, and a fixing device and a drying device having the heater.
The present invention is described below.
1. A resistance heating portion formed in a state of being electrically insulated with respect to the base portion on the side of or on the surface of the base portion, the resistance heating portion having a plurality of parallel wirings generated by energization, A power supply terminal portion formed in a state of being electrically insulated with respect to the base portion on the surface or inside of the base portion, wherein the number of the power supply terminal portions is at least two, And a power supply terminal portion for electrically connecting one terminal portion and the other terminal portion through the resistance heating wiring portion in order to supply electric power, wherein the resistance heating wiring portion has a resistance value temperature coefficient of 500 to 4,400 ppm / [Deg.] C, and the parallel wiring includes a sloped rectangular pattern.
2. A conductor wiring portion formed in a state of being electrically insulated with respect to the base portion on the surface or inside of the base portion, wherein the number of the power supply terminal portions is two, and the number of the conductor wiring portions is two , And a conductor wiring portion for electrically connecting the one end side and the other end side of the resistance heating wiring portion and the two power supply terminal portions separately and a conductor wiring portion for electrically connecting at least one of the resistance heating wiring portion and at least one of the conductor wiring portions When the resistance heat generating wiring portion becomes a predetermined temperature or more on the surface or the lower layer side surface of the resistance heating wiring portion or the insulating portion for forming the contact portion formed with a length equal to or more than the line width of the conductor wiring portion (M1) constituting the resistance heat generating wiring portion and the material (m2) constituting the conductor wiring portion, And comprising a heater according to the
3. The printed wiring board according to
4. The heater according to
5. The heater according to the above 2, wherein the base portion includes insulating ceramics, and the resistance heat generating wiring portion is formed on the surface of the base portion.
6. The heater according to
7. The base material according to
The heater according to the above 2, wherein the conductor wiring portion is formed on the surface of the electrically insulating layer.
8. The heater according to
9. The ceramic capacitor according to
The heater according to 2 above, wherein the conductor wiring portion is formed on the surface of the base portion.
10. The heater according to
11. The heater according to any one of the above 2 to 10, wherein the resistance heat generating wiring portion comprises silver alloy.
12. The heater according to any one of the above 2 to 11, wherein the conductor wiring portion is silver.
13. The heater according to any one of 2 to 12 above, wherein the insulating portion for forming the single-wire portion comprises at least one kind selected from bismuth-based glass and lead-based glass.
14. The printed wiring board according to
15. The heater according to 14 above, wherein the resistance heat generating wiring portion comprises silver alloy.
16. The heater according to 1 above, wherein the base portion includes an insulating ceramics, and the resistance heat generating wiring portion and the power supply terminal portion are formed on a surface of the base portion.
17. The heater according to the above 1, wherein the base portion includes insulating ceramics, and the resistance heat generating wiring portion is formed inside the base portion.
18. The heater according to the above 16 or 17, wherein the resistance heating wiring portion comprises tungsten or molybdenum.
19. A resistance heating unit formed in a state of being electrically insulated with respect to the base, on a surface of or in the surface of the base, comprising: a resistive heating wiring portion that generates heat by energization; Wherein the base portion is formed in an electrically insulated state with respect to the base portion on the surface side or inside of the base portion; Wherein the number of the conductor wiring portions is two and the conductor wiring portion electrically connecting the one end side and the other end side of the resistance heating wiring portion to the two power supply terminal portions separately, On the upper layer side surface or the lower layer side surface of at least one of a part of the heat generating wiring portion and a portion of the conductor wiring portion, a line width of the resistance heat generating wiring portion, (M1) constituting the resistance heat generating wiring portion and the conductor wiring portion are formed so as to have a length equal to or greater than the width of the portion of the resistance heating wiring portion And an insulating portion for forming a single-wire portion that includes a material reacting with at least one material selected from a constituent material (m2), forms an electrically insulating portion by the reaction, and disconnects the resistance heating wiring portion or the conductor wiring portion Features a heater.
20. A fixing device comprising the heater according to any one of 1 to 19 above.
21. A drying apparatus comprising the heater according to any one of 1 to 19 above.
According to the heater of the present invention, the local temperature rise of the resistance heat generating wiring portion at the time of use can be suppressed, and the heat treated material can be subjected to stable heat treatment independently of the size thereof while suppressing temperature unevenness. Further, since the resistance heat generating wiring section includes the inclined rectangular pattern, even if the width of the heater is reduced, a desired effect can be obtained.
The heater of the present invention not only performs heat treatment while fixing both the heater and the object to be heat-treated, but also moves the heater in the width direction (direction perpendicular to the longitudinal direction of the heater) while fixing the object to be heat- It is suitable for the case where heat treatment is carried out while the heat-treated article is moved in the direction perpendicular to the long-shaped heater while heat treatment is performed and the heater is fixed. Particularly, in any of the case where the heat treatment is carried out while the heater is being moved while the heater is being fixed, and the case where the heat treatment is carried out while the heater is fixed while moving the heater, , It is possible to perform the stable heat treatment while suppressing the temperature unevenness without depending on the size of the article to be heat-treated.
In addition, even when the heat-treated article having different thermal properties from each other is heat-treated at the same temperature, it is possible to perform a stable treatment at a predetermined temperature without causing abnormal heat generation.
In the present invention, when the size of the object to be heat-treated is smaller than the total length of the resistance heat-generating wiring portion in the longitudinal direction of the heater, heat treatment is performed by uniform heat generation of the resistance heat-generating wiring portion adjacent thereto according to the size of the object to be heat- , The local temperature rise in the resistance heat generating wiring portion which is not in proximity is suppressed and no damage is caused to other peripheral components. Therefore, the heat treatment can be stably performed at a desired temperature, for example, at a set temperature in the range of -40 DEG C to 1,000 DEG C, without depending on the size thereof.
By arranging the heater of the present invention in a heat treatment apparatus, it is possible to fix toner, ink or the like and to bond a plurality of members, heat treatment of a coating film or a film, heat treatment of a metal product or a resin product, drying, solder reflow, Can be efficiently performed. Further, since the heater can be reduced in width as described above, it is suitable for placement in a compact heat treatment apparatus.
When a rectangle pattern shown in Fig. 1A is applied to the resistance heating wiring portion in Fig. 4 and fixing of toner, ink, and the like is performed, the non-forming portion of the wiring is provided in the width direction of the heater, However, when the heater of the present invention is used, the problem is solved.
Particularly, when the heat-treated article is paper, film or the like and is provided for printing or the like, the heater of the present invention is suitable as a fixing heater in an image forming apparatus such as a printing machine, a copying machine, a facsimile, or the like or a fixing device.
The fixing device of the present invention is suitable for fixation of toner, ink or the like using heat by a heater, bonding of a plurality of members, and the like. Particularly, by using the compression means in combination, the integral cargo can be efficiently obtained. For example, a fixing apparatus having a fixing roll including a heater of a long shape and a pressing roll is provided, in which a recording medium having a toner image not fixed on its surface is supplied between a fixing roll and a pressing roll , The recording medium is moved in the width direction of the heater while passing through the pressure contact portion of the fixing roll and the pressing roll so that the local temperature rise of the resistance heat generating wiring portion can be suppressed Toner, ink, and the like can be efficiently fixed to a recording medium.
According to the drying apparatus of the present invention, drying in a desired atmosphere can be promoted efficiently. It can be used as a vacuum dryer (decompression dryer), a pressure dryer, a dehumidifying dryer, a hot air dryer, an explosion-proof dryer and the like.
Further, according to the heater of the present invention including the insulating portion for forming the single-wire portion, overheat-on of the resistance heat generating wiring portion is started due to thermal runaway or the like, and when the temperature becomes equal to or higher than the predetermined temperature, the resistance heat generating wiring portion and / The respective constituent materials react with each other in the contact portion (covered portion) of the insulating portion for forming a portion to form an electrically insulating portion and the resistance heat generating wiring portion or the conductor wiring portion is smoothly disconnected and the operation can be stopped.
Therefore, also in the fixing device and the drying device using the heater of this type, when the heater is at the predetermined temperature or more, the resistance heating wiring portion or the conductor wiring portion can be disconnected from the magnetic circuit, and safety can be ensured.
Fig. 1 (A) is a schematic view showing a conventionally known rectangular pattern, and Fig. 1 (B) is a schematic view showing a sloping rectangular pattern.
2 is a schematic view showing another example of a slanted rectangular pattern;
3 is a schematic view showing another example of a slanted rectangular pattern;
4 is a schematic plan view showing an example of one type of heater.
Fig. 5 is a schematic view showing a cross-sectional view taken along the line XX in Fig. 4. Fig.
6 is a schematic plan view showing another example of a heater of one form.
7 is a schematic plan view showing another example of a heater of one form.
8 is a schematic sectional view showing another example of a heater of one form.
9 is a schematic sectional view showing another example of a heater of one form.
10 is a schematic plan view showing an example of another type of heater in which the insulating portion for forming the single-wire portion is covered on the surface of the conductor wiring portion.
11 is a schematic plan view showing another example of a heater of another type in which an insulating portion for forming a single-wire portion is formed on the surface of a resistance heat generating wiring portion.
12 is a schematic cross-sectional view showing another type of heater in which an insulating portion for forming a single-wire portion is formed on the surface of a conductor wiring portion.
Fig. 13 is a schematic cross-sectional view showing that the heater in Fig. 12 is thermally congested so that an electrically insulating portion is formed in a part of the conductor wiring portion and the conductor wiring portion is disconnected;
14 is a schematic cross-sectional view showing an example of another type of heater in which an insulating portion for forming a single-wire portion is formed on the surface of a resistance heat generating wiring portion.
Fig. 15 is a schematic sectional view showing another example of a heater of another type in which an insulating portion for forming a single-wire portion is covered on the surface of the resistance heat-generating wiring portion; Fig.
16 is a schematic plan view showing another example of a heater of another type in which an insulating portion for forming a single-wire portion is formed on the surface of a conductor wiring portion.
17 is a schematic cross-sectional view showing another example of a heater of another type formed so as to be surrounded by the overcoat layer on the surface side of the conductor wiring portion and in the overcoat layer.
18 is a schematic cross-sectional view showing an example of another type of heater formed so as to face the insulating portion for forming the single-wire portion, the base portion side of the conductor wiring portion and the surface side of the resistance heat generating wiring portion.
19 is a schematic cross-sectional view showing an example of another type of heater formed between the base portion and the resistance heat generating wiring portion so as to be surrounded by the first insulating layer in the first insulating layer;
20 is a schematic cross-sectional view showing an example of another type of heater having two insulating portions for forming a single-wire portion.
Fig. 21 is a schematic cross-sectional view showing that the heater of Fig. 18 is subjected to thermal runout and an electrically insulating portion is formed in a part of the conductor wiring portion and the resistance heat generating wiring portion, and the conductor wiring portion and the resistance heat generating wiring portion are disconnected.
Fig. 22 is a schematic cross-sectional view showing that the heater of Fig. 20 is subjected to thermal runout, and an electrically insulating portion is formed in a part of the conductor wiring portion and the resistance heat generating wiring portion, and the conductor wiring portion and the resistance heat generating wiring portion are disconnected.
23 is a schematic sectional view showing another example of a heater of another type formed so that the insulating portion for forming a single-wire portion is formed so as to be surrounded by the overcoat layer on the surface side of the resistance heat generating wiring portion and also in the overcoat layer.
24 is a schematic cross-sectional view showing another example of a heater of another type in which an insulating portion for forming a single-wire portion is formed so as to face the base portion side of the resistance heat generating wiring portion and the surface side of the conductor wiring portion.
25 is a schematic cross-sectional view showing another example of a heater of another type formed between the base portion and the conductor wiring portion so as to be surrounded by the first insulating layer in the first insulating layer.
26 is a schematic cross-sectional view showing another example of a heater of another type having two insulating portions for forming a single-wire portion.
27 is a schematic cross-sectional view showing another example of a heater of another type in which an insulating portion for forming a single-wire portion is formed on a surface of a conductor wiring portion;
28 is a schematic cross-sectional view showing another example of a heater of another type formed so as to be surrounded by the overcoat layer on the surface side of the conductor wiring portion and in the overcoat layer;
29 is a schematic cross-sectional view showing another example of a heater of another type formed in such a manner that the insulating portion for forming the single-wire portion, the base portion side of the conductor wiring portion and the surface side of the resistance heat generating wiring portion are formed.
30 is a schematic cross-sectional view showing another example of a heater of another type having two insulating portions for forming a single-wire portion.
31 is a schematic cross-sectional view showing another example of a heater of another type formed so that the insulating portion for forming a single-wire portion is formed so as to be surrounded by the overcoat layer on the surface side of the resistance heat generating wiring portion and also in the overcoat layer.
32 is a schematic cross-sectional view showing another example of a heater of another type in which the insulating portion for forming the single-wire portion is formed so as to face the base portion side of the resistance heat generating wiring portion and the surface side of the conductor wiring portion.
33 is a schematic cross-sectional view showing another example of a heater of another type having two insulating portions for forming a single-wire portion.
34 is a schematic cross-sectional view showing another example of a heater of another type formed on the surface of the conductor wiring portion;
Fig. 35 is a schematic cross-sectional view showing another example of a heater of another type formed on the surface of the conductor wiring portion; Fig.
36 (A1) and (A2) are plan views showing that the insulating portion for forming the single-wire portion covers the resistance heating wiring portion or the conductor wiring portion, and (B1) and (B2) Fig. 6 is a plan view showing that the wiring is covered by a wiring or conductor. Fig.
37 is a schematic perspective view showing an example of a fixing apparatus of the present invention.
38 is a schematic perspective view showing another example of the fixing device of the present invention.
39 is a schematic view showing an example of an image forming apparatus having a heater of the present invention;
40 is a plan view showing the heater manufactured in Example 1. Fig.
41 is a schematic perspective view showing a heat sink for evaluation E1 of the heater.
Fig. 42 is a schematic plan view showing an apparatus for evaluation E1 of a heater. Fig.
43 is a graph showing a test result (evaluation E1) in the heater of the
44 is a plan view showing the heater manufactured in Example 2. Fig.
45 is a graph showing a test result (evaluation E1) in the heater of the second embodiment;
46 is a plan view showing the heater manufactured in Comparative Example 1. Fig.
47 is a schematic view showing the YY-line cross-section of Fig. 46;
48 is a graph showing a test result (evaluation E1) of the heater of Comparative Example 1;
49 is a schematic plan view showing a heater used in Comparative Example 2. Fig.
50 is a graph showing the test result (evaluation E1) in the heater of Comparative Example 2;
51 is a plan view showing the heater manufactured in Example 3;
52 is a schematic plan view showing an apparatus for evaluation E2 of a heater.
53 is a graph showing a test result (evaluation E2) of the heater of Example 3;
54 is a plan view showing the heater manufactured in Example 4;
55 is a graph showing a test result (evaluation E2) in the heater of the fourth embodiment;
A heater according to one aspect of the present invention is a resistance heating portion formed in a state of being electrically insulated with respect to a base portion on a long base portion and on the surface or inside of the base portion, And a power supply terminal portion electrically insulated from the base portion on the surface or inside of the base portion. The number of the power supply terminal portions is at least two, and the resistance heating wire portion And a power supply terminal portion for electrically connecting one terminal portion and the other terminal portion through the resistance heat generating wiring portion in order to supply electric power to the wiring portion, wherein the resistance heat generating wiring portion has a resistance value temperature coefficient of 500 to 4,000 ppm / And the parallel wiring is characterized by including a sloped rectangular pattern. The resistance heat generating wiring portion and the power supply terminal portion may be connected by a conductor wiring portion.
Another type of heater in the present invention is a resistance heating unit formed in a state of being electrically insulated with respect to a base portion on a long base portion and on the surface or inside of the base portion and a resistance The power supply unit includes two heat dissipation wiring portions and two power supply terminal portions formed on the surface or inside of the base portion in an electrically insulated manner with respect to the base portion. The number of conductor wirings is two, and a conductor wiring portion for electrically connecting the one end side and the other end side of the resistance heat generating wiring portion to the two power supply terminal portions separately, The wiring width of the resistance heating wiring portion or the wiring width of the conductor wiring portion on the upper layer side surface or the lower layer side surface of at least one of the part of the heat generating wiring portion and the portion of the conductor wiring portion, (M1) constituting the resistance heat generating interconnection portion and the material m2 constituting the conductor interconnection portion when the resistance heat generating interconnection portion becomes the predetermined temperature or higher, And an insulating portion for forming a single-wire portion that includes a material reacting with the material and forms an electrically insulating portion by this reaction and disconnects the resistance heat generating wiring portion or the conductor wiring portion.
One type of heater in the present invention is a heater in which a long base portion 11 (a
Another type of heater in the present invention is a heater in which a base portion 11 having a long shape (a base portion 11 including the base layer 12 and the electrically insulating layer 13) A resistance heating wiring portion 15 which is a resistance heating portion formed in a state of being electrically insulated from the base portion 11 on the surface side or inside of the base portion 11 and which is heated by energization, Two power supply terminal portions 17 which are formed inside the base portion 11 in a state of being electrically insulated from the base portion 11 and two power supply terminal portions 17 which are formed on the surface side or inside of the base portion 11 with respect to the base portion 11 The number of the conductor wiring portions is two and the number of the power supply terminal portions 17 and the one end side and the other end side of the resistance heat generating wiring portion 15 are set separately from each other, At least one of a portion of the resistance heating wiring portion 15 and a portion of the conductor wiring portion 19 Side surface of the resistance heating wiring portion 15 or the conductor wiring portion 19 with a length equal to or greater than the line width of the resistance heating wiring portion 15 or the line width of the conductor wiring portion 19, A material reacting with at least one material selected from the material m1 constituting the resistance heat generating interconnection portion 15 and the material m2 constituting the conductor interconnection portion 19 is used And an insulating portion 32 for forming a single-wire portion which forms an electrically insulating portion by this reaction and disconnects the resistance heating wiring portion 15 or the conductor wiring portion 19. [
In both configurations, the cross-sectional structure of the heater is shown in Figs. 5, 8, and 9, for example. These drawings show a case where the resistance
In the present invention, the shape of the heater generally depends on the shape of the base portion or base layer. The shape of the base portion or the base layer is generally a flat plate shape and may include a concave portion, a convex portion, a hollow portion, and the like. The shape of the base portion or base layer may be a curved shape.
In the present invention, the constituent elements such as the resistance heating wiring portion, the power supply terminal portion, and the conductor wiring portion can be formed not only in the surface (one surface side or both surfaces) of the base portion, but also in the inside thereof. In the latter case, the shape of the base portion may be a hollow body or the like.
In the following description, the description such as " formation (placement) on the surface of the base portion or on the surface side of the base portion " and the like may be made on the surface of the base portion of the flat plate shape or on the surface side (Arranged) with respect to the surface of the wafer W. When the base portion is made of a hollow body, it means that it is formed (arranged) on the inner surface of the hollow portion.
The thickness of the
Further, the length of the
The constituent material of the base portion or the base layer is preferably stainless steel, aluminum, an aluminum alloy or an insulating ceramics.
The stainless steel is preferably a ferritic heat-resistant steel, particularly preferably SUS430, SUS444 and SUS436.
Since the stainless steel, aluminum or aluminum alloy has a low electrical resistance value, components such as the resistance
In the present invention, the constituent material of the
The insulating ceramics is preferably an inorganic compound having an electric resistance value of 10 7 ? 占 ㎝ m or more, and examples thereof include aluminum oxide, aluminum nitride, zirconia, silica, mullite, spinel, cordierite and silicon nitride. Of these, aluminum oxide and aluminum nitride are preferable.
In the present invention, the structure of the heater depends on the constituent material of the
When the constituent material of the
The thickness of the first insulating
8, constituent elements such as the resistance
In the heater according to one embodiment of the present invention, the resistance heat generating
The "oblique rectangular pattern" is, for example, a
The resistance
The form of the parallel wiring is not particularly limited. One parallel wiring may be formed in the longitudinal direction of the heater, in the width direction of the heater, or may be formed obliquely in the width direction of the heater.
In the present invention, the heater including the resistance
Fig. 4 and Fig. 7 show a form in which the inclined rectangular pattern shown in Fig. 1 (B) is arranged obliquely with respect to the width direction of the
In the case of these types, since the
4, 6, 7, 10 and 11 show a heater (hereinafter referred to as " heater (I) " ) &Quot;). Fig. 5 is a schematic view showing the X-X line section in Fig. 4. Fig.
The
In the heater I, it is preferable that the constituent material of the resistance heat generating
The line thickness of the resistance heat generating
In the heater I, the material of the power
In the heater (I), the constituent material of the base layer (12) is preferably a ferritic heat-resisting steel. Particularly preferable materials are SUS430, SUS444, and SUS436.
The thickness of the
The constituent material of the electrically insulating
The thickness of the electrically insulating
4, 5, 6, and 7, the electrical insulating
5 and the like, the heater I may include a protective layer covering the resistance
The protective layer is preferably made of an electrically insulating material and may be made of the same material as the electrically insulating
The heater I shown in Figs. 4, 5, 6 and 7 is formed by, for example, a step of forming an electrical insulating film on the surface of a long stainless steel plate, To 4,400 ppm / DEG C, and further forming a resistive heat generating wiring portion including a slanted rectangular pattern; a step of forming a resistive heating wiring portion including at least two power feeding portions And a step of forming a terminal portion. Further, it may include a step of forming a conductor wiring portion, a step of forming a protective layer, and the like.
In the case of forming the electrical insulating film and the protective layer, a method of heat-treating a film formed using a composition containing a precursor of an electrically insulating material or the like can be applied.
In the case of forming the resistance heating wiring portion, the power supply terminal portion and the conductor wiring portion, the printing method; Dipping method; A physical vapor growth method such as a vapor deposition method and the like can be applied.
As shown in Figs. 10 and 11, the heater I has a problem in that when the heater has a problem such as heat congestion and the heat generating
The arrangement of the
The shape in which the insulating
11, the insulating
In the case where the insulating
The thickness of the insulating
The constituent material of the single-wire-portion-forming insulating
Examples of the bismuth glass include Bi 2 O 3 -ZnO-B 2 O 3 glass and the like. Examples of the lead-based glass include PbO-B 2 O 3 -based glass and the like.
As described above, when the resistance
In the heater of Fig. 14 including the insulating
When the heater I having the insulating
Since the heater I is provided with the
8 is a sectional view showing a heater (hereinafter also referred to as " heater (II) ") provided on the surface of the base 11 made of an insulating ceramics. The constituent elements of the surface of the base 11 made of insulating ceramics in this heater II are the same as those of the surface of the electrically insulating
The heater shown in Fig. 8 has a
9 is a cross-sectional view showing a heater (hereinafter also referred to as " heater (III) ") having resistance heat generating
The heater III shown in the sectional view of Fig. 9 has a
In the heaters (II) and (III), the constituent material of the resistance
The line width of the resistance heat generating
In the heaters (II) and (III), the constituent material of the power
In the heaters (II) and (III), as the constituent material of the
The thickness of the
The thickness of the
9 showing the heater III, the power
The heater (II) includes a step of manufacturing a long plate including insulating ceramics, a step of forming a ceramic substrate on the surface of the ceramic span, the ceramic substrate including a material having a resistance value temperature coefficient of 500 to 4,400 ppm / And a step of forming at least two power supply terminal portions at both ends or a peripheral portion of the ceramic span in the longitudinal direction of the plate. Further, a step of forming a conductor wiring portion may be included.
A method of manufacturing a ceramic span is exemplified below.
(1) a method of preparing a green sheet by using a ceramic slurry containing a powder of insulating ceramics and subjecting it to a heat treatment
To the ceramic slurry, a sintering aid such as silicon oxide, calcium oxide, titanium oxide, magnesium oxide or zirconium oxide, a dispersing agent, a plasticizer, an organic solvent and the like can be added.
(2) a method in which a mixture of an insulating ceramics powder, a sintering assistant or the like is subjected to a press molding or the like and a heat treatment is performed on the formed body of a predetermined shape
The heater (II) has a resistance temperature coefficient of 500 to 4,400 ppm / DEG C for a resistance heat generating wiring part at a predetermined position on the surface of a long green sheet including the powder of insulating ceramics prepared as described above A step of disposing a metal foil made of a paste or a metal foil made of the paste or a material made of the material for the power supply terminal portion or the conductor wiring portion at a predetermined position on the surface of the green sheet; , And a step of performing a heat treatment in these laminated states.
In all of the methods for producing the heater (II) described above, a step of forming a protective layer and the like may also be included.
The heater (III) is manufactured by, for example, a process of fabricating two long green sheets including powder of insulating ceramics, a step of forming a resistive temperature coefficient A step of disposing a paste made of a material having a specific surface area of 500 to 4,000 ppm / ° C or a metal foil made of the material, a paste made of a material for a power supply terminal portion or a material for a conductor wiring portion, A step of disposing a metal foil made of the material, and a step of arranging another green sheet so as to sandwich the surface of the laminate and performing heat treatment.
In the present invention, the positions of the power
4 to 7, one
In the heater II or III having the insulating
One type of heater in the present invention can generate heat by connecting the power
In the heater of one form in the present invention, the resistance
At least one of the resistance
The heater shown in Figs. 18, 20, 29 and 30 is a multilayer heater in which a resistance
18 is a sectional view showing a first insulating
29 shows a structure in which a resistance
21 and FIG. 29, when the resistance heat generating
20 and 30, when the resistance heat generating
The heater shown in Figs. 24, 26, 32 and 33 is a multilayer heater having a
24 shows an example in which a first insulating
32 is a sectional view showing the state in which a
24 and 26, even when the resistance heat generating
The insulating
The material constituting the second insulating
The overcoat layers 21, 21A and 22B shown in Figs. 17 to 35 are arranged for protection of the resistance
The softening point of the constituent material of the overcoat layer is preferably higher than the softening point of the constituent material of the insulating
Next, in the heater according to another embodiment of the present invention, the constituent material of the resistance heat generating
The constituent material of the resistance heat generating
In the heaters of other types in the present invention, the power supply terminal portion can be provided in three or more positions (not shown), if necessary.
The thicknesses of the power supply terminal portion and the conductor wiring portion are all preferably 5 to 27 탆, more preferably 7 to 24 탆, and still more preferably 9 to 12 탆.
As other types of heaters according to the present invention, it is preferable that the heaters of the present invention be arranged in a manner as shown in Figs. 12, 14, 15, 17, 18, 19, 20, 23, 24, 25, 26, Are shown in Figs. 28, 29, 30, 31, 32, 33, 34, The description of these drawings is the same as above except for the wiring pattern, and the description of all the components is applied.
Other types of heaters according to the present invention can generate heat by connecting the power
By using the heater of the present invention, stable heat treatment can be performed for any of the organic matter, the inorganic substance, and the composite material obtained by combining them as the heat-treated article without depending on the size thereof, while suppressing temperature unevenness. The heat treatment method is selected depending on the purpose, purpose, and the like, but may be performed while moving the heater and the heat treatment object, or one side may be fixed and the other side may be moved.
The fixing device of the present invention includes the heater of the present invention. That is, the fixing device of the present invention is an apparatus for heating two heaters to bond two articles together.
The configuration of the fixing device of the present invention can be appropriately selected depending on the use of the obtained product, the fixing means, and the like. For example, in the case of having fixing means accompanied by pressing, and in the case of fixing toner or the like to a recording medium such as paper, and when joining a plurality of members, there is a heating portion provided with a heater, A fixing device having a fixing portion. Of course, it may be a fixing means not involving pressing. In the present invention, as shown in Fig. 37 and Fig. 38, it is preferable that the fixing
37 and 38, the fixing device of the present invention will be described.
37 is a schematic view showing a main part of a
In the
37, since the fixing
38 is also a schematic view showing a main part of the fixing
In the
38, since the fixing
Another embodiment of the fixing device of the present invention is a mold having an upper mold and a lower mold, and a heater may be disposed inside at least one of the upper mold and the lower mold.
The drying apparatus of the present invention includes the heater unit including the heater of the present invention.
The configuration of the drying apparatus of the present invention can be appropriately selected depending on the shape, size, and the like of the article to be heat-treated. In the present invention, for example, a configuration may be adopted in which a housing portion, a hermetically-closable window portion arranged for inserting and receiving the object to be heat-treated, and a movable heater portion disposed inside the housing portion are provided. An exhaust part for exhausting the gas when the gas is exhausted by drying of the object to be heated, an exhaust part for regulating the pressure inside the housing part, , A pressure adjusting unit such as a vacuum pump, or the like.
The drying may be performed while fixing the heat treatment object and the heater portion, or by moving either one.
The heater of the present invention is suitable as a constituent member of an image forming apparatus.
The configuration of the image forming apparatus can be suitably selected depending on the use of the obtained product, the purpose of heating, and the like. For example, as shown in Fig. 39, there are image forming means for forming an unfixed image on the surface of a recording medium such as paper or film, fixing means 5 for fixing the unfixed image on a recording medium And the fixing means 5 can be the
The image forming apparatus will be described below based on Fig.
Fig. 39 is a schematic view showing the main part of the electrophotographic
As the image forming means, any of a system having a transfer drum and a system not having a transfer drum may be used, but Fig. 39 is a mode having a transfer drum.
The laser output from the
The image forming means may be provided with a cleaning device for removing insoluble toner or the like on the surface of the
The toner is a particle containing a binder resin, a colorant, and an additive, and the melting temperature of the binder resin is usually 90 to 220 캜.
The fixing means 5 may have the same structure as that of the fixing device according to the present invention and includes a
In general, when the temperature of the fixing
The fixing
Other means not shown in the
[Example]
EXAMPLES Hereinafter, the present invention will be described in more detail by way of examples, but the present invention is not limited to these examples unless it exceeds the gist of the present invention.
[Example 1]
(1) Manufacture of stainless steel heaters
The
After the surface of the substrate (
Thereafter, on the surface of the insulating
Subsequently, on the entire surface of the substrate including the surfaces of the obtained resistance
(2) Evaluation of heater
This evaluation (hereinafter referred to as " evaluation E1 ") is used for an image forming apparatus such as a printer, a copying machine, and a facsimile employing an electrophotographic system or the like. The unfixed toner image carried on a recording medium such as paper is heated A
42 is a schematic view of an apparatus for evaluation E1. In this evaluation device, the
In this evaluation test, while the temperature of the
A method of using the
The results of the evaluation E1 are shown in Fig. 43, when the
[Example 2]
A paste containing a silver-palladium alloy (resistance value temperature coefficient of 1,000 ppm / 占 폚) without containing lead, cadmium, and nickel was used as the paste for forming the resistance heat generating
The results of the evaluation E1 are shown in Fig. 45, when the
[Comparative Example 1]
A paste containing a silver-palladium alloy (resistance value temperature coefficient of 1,000 ppm / 占 폚) without containing lead, cadmium, and nickel was used as the paste for forming the resistance heat generating
The results of the evaluation E1 are shown in Fig. 48, when the
[Comparative Example 2]
Evaluation was carried out in the same manner as in Example 1 using a commercially available ceramic heater having a resistance heating wiring portion having a pattern shown in Fig. The base material is Al 2 O 3 .
The results of the evaluation E1 are shown in Fig. 50, when the
[Example 3]
(1) Manufacture of stainless steel heaters
The
After the surface of the substrate (
Thereafter, a paste containing a powder containing a silver-palladium alloy (resistance temperature coefficient 1,500 ppm / 占 폚) was used to form the resistance
Subsequently, on the entire surface of the substrate including the surfaces of the obtained resistance
(2) Evaluation of heater
For the same purpose as in Examples 1 and 2, evaluation was performed using the apparatus shown in Fig. 52 (hereinafter referred to as " evaluation E2 "). An
In the evaluation E2 apparatus shown in Fig. 52, the
In this evaluation test, the loading point of the
The test method using the
The test result of evaluation E2 is shown in Fig. 53, when the
[Example 4]
The
After the surface of the substrate (
Thereafter, a paste containing a powder containing a silver-palladium alloy (resistance value temperature coefficient of 1,000 ppm / 占 폚) was used to form the resistance
Subsequently, on the entire surface of the substrate including the surfaces of the obtained resistance
The results of the evaluation E2 are shown in Fig. 55, when the
[Example 5]
The stainless steel heater shown in Figs. 10 and 12, which is a schematic diagram, was manufactured in the following manner.
After smoothing the surface of the substrate (270㎜ × 24㎜ × 0.6㎜) containing the SUS430, the components are SiO 2 -Al 2 O 3 -RO (softening point: 740 degrees) in the material for forming crystallized glass, drying treatment And then coated on the surface of the substrate so as to have a thickness of 100 mu m. Subsequently, the coated film was baked at 850 占 폚 to obtain a first insulating
Thereafter, on the surface of the first insulating
Subsequently, on the surfaces of the resistance
Thereafter, the same screen mask was used to leave an exposed portion of the
A voltage of AC 100 V was applied to each of the two power
In the fifth embodiment, as shown in Fig. 10, the heaters having one insulating
[Example 6]
The stainless steel heater shown in Figs. 11 and 14, which is a schematic diagram, was manufactured by the following procedure.
After smoothing the surface of the substrate including the SUS430, the components are SiO 2 -Al 2 O 3 -RO (softening point: 740 ℃) of applying a material for forming crystallized glass, the surface of the substrate so that after drying
Thereafter, on the surface of the first insulating
Subsequently, on the surfaces of the resistance
Thereafter, using the same screen mask, SiO 2 -Al 2 O 3 -B 2 O 3 -RO (softening point: 580 ° C) was included while leaving the exposed portion of the resistance heat generating
A voltage of AC 100 V was applied to each of the two power
[Example 7]
The resistance
Thereafter, a voltage of AC 100 V was applied to each of the two power
In Examples 5 to 7, an amorphous glass forming material containing SiO 2 -Al 2 O 3 -B 2 O 3 -RO (softening point: 580 ° C) was applied to the surface of the second insulating layer to form an overcoat layer However, instead of the amorphous glass forming material, an amorphous glass forming material containing PbO-B 2 O 3 (softening point: 375 ° C.) used for forming the insulating
[Example 8]
The first insulating
After smoothing the surface of the substrate including the SUS430, the components are SiO 2 -Al 2 O 3 -RO (softening point: 740 ℃) of applying a material for forming crystallized glass, the surface of the substrate so that after drying
Thereafter, using a paste containing a powder including a silver-palladium alloy (resistance temperature coefficient 1,500 ppm / 占 폚) without containing lead, cadmium, and nickel and a paste containing silver powder, The patterns of the resistance
Subsequently, a second insulating
Thereafter, amorphous glass forming material containing Bi 2 O 3 -Zn-B 2 O 3 (softening point: 506 ° C) was filled in the concave portion before the formation of "32", and baked at 550 ° C, Forming
Subsequently, each pattern of the
Thereafter, a voltage of AC100V was applied to each of the two power
[Example 9]
The resistance
Thereafter, a voltage of AC100V was applied to each of the two power
[Example 10]
The first insulating
After smoothing the surface of the substrate including the SUS430, the components are SiO 2 -Al 2 O 3 -RO (softening point: 740 degrees) of the material for the crystallized glass to form a coating on the surface of the substrate so that after drying
Thereafter, each pattern of the power
Subsequently, a second insulating
Subsequently, the amorphous glass forming material containing SiO 2 -Al 2 O 3 -B 2 O 3 -RO (softening point: 580 ° C) was filled in the recess before "32" was formed, Thereby forming an insulating
Then, using a paste (softening point of material: 550 캜) containing powder including silver, palladium alloy (resistance temperature coefficient 1,500 ppm / 캜) without containing lead, cadmium and nickel, A circuit pattern including a slanting rectangular pattern for forming the resistance
Thereafter, a voltage of AC100V was applied to each of the two power
In the eighth to tenth embodiments, the
[Example 11]
The resistance
On both sides of the substrate, a crystallized glass of a material for forming, so that the 100㎛ after drying treatment: After smoothing the surfaces of the substrate including the SUS430, the components are SiO 2 -Al 2 O 3 -RO ( 740 ℃ softening point) Respectively. Subsequently, the coated film was baked at 850 캜 to obtain a first insulating
Thereafter, a paste containing a powder containing silver-palladium alloy (resistance temperature coefficient 1,500 ppm / 占 폚) without containing lead, cadmium, and nickel was applied to the surface of the first insulating
Subsequently, using a paste containing silver powder, a power
Thereafter, on the surfaces of the resistance
Subsequently, the amorphous glass forming material containing PbO-B 2 O 3 (softening point: 375 ° C) was filled in the concave portion before the "32" was formed, and was fired at 450 ° C., (32) was formed to obtain a stainless steel heater. In this stainless steel heater, the conductor wiring portion (terminal portion) 25 on the side (upper side) where the resistance heat generating
[Example 12]
The resistance
[Example 13]
A substrate having a through hole (circular shape, circular shape, inner diameter: 0.3 mm) which is made of aluminum nitride and which is vertically opened at one end side thereof is used, and the ceramic heater shown in Fig. 35 Respectively.
Using a paste containing a powder including a silver-palladium alloy (temperature coefficient of resistance value 1,500 ppm / 占 폚) without containing lead, cadmium, and nickel at a predetermined position on the surface of the first surface of the substrate, , And a circuit pattern that was inclined in the width direction of the stainless steel substrate was printed. Then, this printed portion was fired at 850 캜 to form a resistance
Subsequently, by using the paste containing the silver powder, the respective patterns for forming the power
Thereafter, a material for forming a crystallized glass having a composition of SiO 2 -Al 2 O 3 -RO (softening point: 740 ° C) was used for the surface of the resistance
Subsequently, the amorphous glass forming material containing PbO-B 2 O 3 (softening point: 375 ° C) was filled in the concave portion before the "32" was formed, and was fired at 450 ° C., (32) was formed to obtain a ceramic heater.
≪ Industrial applicability >
By disposing the heater of the present invention in a heat treatment apparatus, it is possible to perform various functions such as fixing of toner and ink, bonding of a plurality of members, heat treatment of a coating film or a film, heat treatment of a metal product or a resin product, drying and solder reflow, Can be efficiently performed. Further, in the present invention, since the heater can be reduced in width, it is suitable for placement in a compact heat treatment apparatus.
The fixing device of the present invention is suitably used as a heat source for heating, keeping warm, etc., by being attached to an image forming apparatus such as an electrophotographic printing machine or a copying machine, home electric appliances, business use,
The drying apparatus of the present invention is suitable as an apparatus for drying the object to be heat-treated including water, an organic solvent and the like at a desired temperature. It can be used as a vacuum dryer (decompression dryer), a pressure dryer, a dehumidifying dryer, a hot air dryer, an explosion-proof dryer and the like.
1, 1A, 1B: Heater
11: Foundation
12: foundation layer
13: electrically insulating layer (first insulating layer)
15: Resistance heat generating wiring part
16: second insulating layer
17, 17A, 17B: power supply terminal portions
19: conductor wiring portion
20: oblique rectangular pattern
21, 21A, 21B: an overcoat layer
23: Third insulating layer
24: first protective layer
25: Second protective layer
32: Insulation part for forming a single wire part
34: Electrical insulation part
3A, 3B: Heatsink
4: Image forming apparatus
41: Laser Scanner
42: mirror
43:
44: photosensitive drum
45: developing cartridge
46: Transfer drum
47: Transfer roll
5: Fixing device (fixing means)
51: Fixing roll
52: Pressurizing roll
53: Heater holder
54: pressure roll
6: Heater support
7: Temperature controller
P: recording medium
Claims (21)
A resistance heating wiring portion having a plurality of parallel wirings which are heated by energization and which are formed in a surface side or inside of the base portion in an electrically insulated state with respect to the base portion;
Wherein a number of the power supply terminal portions is at least two and the power supply is provided to the resistance heat generating wiring portion And a power supply terminal portion for electrically connecting one terminal portion and the other terminal portion through the resistance heat generating wiring portion,
Wherein the resistance heat generating wiring portion includes a material having a resistance value temperature coefficient of 500 to 4,400 ppm / 占 폚, and the parallel wiring includes a slanted rectangular pattern.
The number of the power supply terminal portions is two,
Wherein the number of conductor wirings is two, and the one end and the other end of the resistance heating wiring portion and the other end of the resistance heating wiring portion are electrically insulated from the base portion, A conductor wiring portion for electrically connecting the two power supply terminal portions separately,
The resistance heating wiring portion and the conductor wiring portion are formed on the upper surface side or the lower surface side surface of at least one of the resistance heating wiring portion and the portion of the conductor wiring portion with a line width equal to or more than the line width of the resistance heating wiring portion or the line width of the conductor wiring portion, Wherein at least one kind of material selected from the material (m1) constituting the resistance heating wiring portion and the material (m2) constituting the conductor wiring portion reacts with the resistance heating wiring portion when the resistance heating wiring portion becomes a predetermined temperature or more And an insulating portion for forming a single-wire portion for forming an electrically insulating portion by the reaction and disconnecting the resistance heating wiring portion or the conductor wiring portion.
Wherein the base portion comprises a base layer comprising stainless steel, aluminum or an aluminum alloy, and an electrically insulating layer formed on a surface of the base layer,
And the resistance heat generating wiring portion is formed on the surface of the electrically insulating layer.
Wherein the heater is a multilayer heater having the resistance heat generating wiring portion and the conductor wiring portion in this order on the surface of the electrically insulating layer of the base portion, And a portion of the conductor wiring portion has a sequentially-contacted portion.
Wherein the base portion includes an insulating ceramics,
And the resistance heat generating wiring portion is formed on a surface of the base portion.
Wherein the heater is a multilayer heater having the resistive heat generating wiring portion and the conductor wiring portion in this order on the surface of the base portion, wherein the heater is formed on at least a part of the resistance heat generating wiring portion, at least a part of the insulating portion for forming the single wire portion, A heater partly having a sequentially surface-contacted part.
Wherein the base portion comprises a base layer comprising stainless steel, aluminum or an aluminum alloy, and an electrically insulating layer formed on a surface of the base layer,
And the conductor wiring portion is formed on the surface of the electrically insulating layer.
Wherein the heater includes a conductor wiring portion and a resistance heat generating wiring portion in this order on the surface of the electrically insulating layer of the base portion, wherein at least a part of the conductor wiring portion, at least a part of the insulating portion for forming the single- And a portion of the resistance heat generating wiring portion has a portion which is sequentially contacted with the surface.
Wherein the base portion includes an insulating ceramics,
And the conductor wiring portion is formed on a surface of the base portion.
Wherein the heater is a multilayer heater including the conductor wiring portion and the resistance heat generating wiring portion in this order on the surface of the base portion, wherein at least a part of the conductor wiring portion, at least a part of the insulation portion for forming the single- A heater partly having a sequentially surface-contacted part.
And the resistance heat generating wiring portion includes silver alloy.
And the conductor wiring portion includes silver.
Wherein the insulating portion for forming the single-wire portion includes at least one selected from the group consisting of bismuth glass and lead-based glass.
Wherein the base portion comprises a base layer comprising stainless steel, aluminum or an aluminum alloy, and an electrically insulating layer formed on a surface of the base layer,
Wherein the resistance heat generating wiring portion and the power supply terminal portion are formed on a surface of the electrically insulating layer.
And the resistance heat generating wiring portion includes silver alloy.
Wherein the base portion includes an insulating ceramics,
Wherein the resistance heat generating wiring portion and the power supply terminal portion are formed on a surface of the base portion.
Wherein the base portion includes an insulating ceramics,
And the resistance heat generating wiring portion is formed inside the base portion.
Wherein the resistance heat generating wiring portion comprises tungsten or molybdenum.
A resistance heat generating portion formed on the surface of or inside the base portion so as to be electrically insulated with respect to the base portion,
Two power supply terminal portions formed on the front surface or inside of the base portion in an electrically insulated state with respect to the base portion,
Wherein the number of conductor wirings is two, and the one end and the other end of the resistance heating wiring portion and the other end of the resistance heating wiring portion are electrically insulated from the base portion, A conductor wiring portion for electrically connecting the two power supply terminal portions separately,
The resistance heating wiring portion and the conductor wiring portion are formed on the upper surface side or the lower surface side surface of at least one of the resistance heating wiring portion and the portion of the conductor wiring portion with a line width equal to or more than the line width of the resistance heating wiring portion or the line width of the conductor wiring portion, Wherein at least one kind of material selected from the material (m1) constituting the resistance heating wiring portion and the material (m2) constituting the conductor wiring portion reacts with the resistance heating wiring portion when the resistance heating wiring portion becomes a predetermined temperature or more And an insulating portion for forming a single-wire portion for forming an electrically insulating portion by the reaction and disconnecting the resistance heating wiring portion or the conductor wiring portion.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JPJP-P-2011-250108 | 2011-11-15 | ||
| JP2011250108 | 2011-11-15 | ||
| JPJP-P-2012-039324 | 2012-02-24 | ||
| JP2012039324 | 2012-02-24 | ||
| PCT/JP2012/073373 WO2013073276A1 (en) | 2011-11-15 | 2012-09-12 | Heater, and fixing device and drying device provided with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20140089419A true KR20140089419A (en) | 2014-07-14 |
| KR102037827B1 KR102037827B1 (en) | 2019-10-29 |
Family
ID=48429350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020147015146A KR102037827B1 (en) | 2011-11-15 | 2012-09-12 | Heater, and fixing device and drying device provided with same |
Country Status (4)
| Country | Link |
|---|---|
| JP (2) | JP6228458B2 (en) |
| KR (1) | KR102037827B1 (en) |
| CN (1) | CN103931271B (en) |
| WO (1) | WO2013073276A1 (en) |
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| KR20180054433A (en) * | 2016-11-15 | 2018-05-24 | 삼성전자주식회사 | Filler structure and the electric device including the same |
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| KR20180106846A (en) * | 2016-01-29 | 2018-10-01 | 가부시키가이샤 미스즈 코우쿄우 | A heater, a fixing device having the same, an image forming apparatus and a heating apparatus |
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| CN206993432U (en) * | 2017-07-21 | 2018-02-09 | 威滔电子科技（深圳）有限公司 | A kind of fever tablet |
| WO2019112058A1 (en) * | 2017-12-08 | 2019-06-13 | 株式会社美鈴工業 | Heater, fixing device, image-forming device, and heating device |
| ES2920133T3 (en) * | 2018-02-05 | 2022-08-01 | Ngk Spark Plug Co | ceramic heater |
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Also Published As
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| CN103931271B (en) | 2016-08-31 |
| KR102037827B1 (en) | 2019-10-29 |
| WO2013073276A1 (en) | 2013-05-23 |
| CN103931271A (en) | 2014-07-16 |
| JP6444467B2 (en) | 2018-12-26 |
| JPWO2013073276A1 (en) | 2015-04-02 |
| JP6228458B2 (en) | 2017-11-08 |
| JP2018032631A (en) | 2018-03-01 |
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