CN205091543U - Heater and image forming device - Google Patents
Heater and image forming device Download PDFInfo
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- CN205091543U CN205091543U CN201520695761.3U CN201520695761U CN205091543U CN 205091543 U CN205091543 U CN 205091543U CN 201520695761 U CN201520695761 U CN 201520695761U CN 205091543 U CN205091543 U CN 205091543U
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Abstract
The utility model provides a resistance heating body is the heater and image forming device of NTC characteristic. Embodiment's heater includes: rectangular form base plate, the resistance heating body contains a pair of main part and bottom and whole formation to the concavity, and be provided with a plurality ofly side by side with the mode that separates each other in the long limit direction of base plate, a pair of main part is pressing from both sides the opening and is forming on one side of wherein, the bottom with the opening subtend is just in another distolateral connection a pair of main part, and the conductor, contain first conductor and second conductor, a conductor contact the concavity peripheral part of the resistance heating body, the 2nd conductor contact all portions in the concavity of the resistance heating body. The utility model discloses can provide the heater and image forming device that can reduce the all -in resistance value of the resistance heating body and can realize necessary calorific capacity.
Description
Technical field
Embodiment of the present utility model relates to a kind of well heater (heater) and image processing system.
Background technology
In electronic equipment classes such as office automation (OfficeAutomation, OA) equipment, household electrical appliances electric product, precision manufactureing equipment, well heater is installed.Such as in the image processing systems such as duplicating machine or facsimile recorder (facsimile), well heater is used in the image processing system of fixing toner (toner) in paper using.In addition, if card reader (rewritablecardreader) can be rewritten, be then used to lettering and erase.Well heater is by forming power consumption pole, conductor, resistance heater and forming on substrate, and resistance heater utilizes the electric power from the supply of power consumption pole and generates heat.
Well heater for image processing system generally uses positive temperature coefficient (PTC) (PositiveTemperatureCoefficient, PTC) resistance heater of characteristic, the resistance heater of described ptc characteristics is with silver and palladium (palladium) or ruthenium-oxide (ruthenium) and glass (glass) for major component, and temperature-coefficient of electrical resistance [ppm/ DEG C] is 0 or just.
Effective length, i.e. full-size that well heater is formed consistent with the full-size (length parallel with well heater long side direction in recording medium) with the heatable recording medium of image processing system are identical or longer.Therefore, when to be less than maximum sized recording medium heat, if the well heater of ptc characteristics, in well heater non-sheet feeding section region temperature rise.Therefore, when the temperature in the non-sheet feeding section region of preferential suppression rises, also consider that well heater use temperature-coefficient of electrical resistance [ppm/ DEG C] is the resistance heater (with reference to patent documentation 1) of negative negative temperature coefficient (NegativeTemperatureCoefficient, NTC) characteristic.
[prior art document]
[patent documentation]
[patent documentation 1] Japanese Patent Laid-Open 2009-244867 publication
[problem of utility model for solving]
Total sheet resistance value of the resistance heater of NTC characteristic is up to hundreds of Ω/, and being difficult to the total resistance value of the resistance heater formed in a well heater to be set in source power supply can in usable range.Therefore, when using the material of NTC characteristic as resistance heater material, such as, on the long side direction of well heater, resistance heater be divided into multiple and arrange, and on the direction that the energising direction with resistance heater is orthogonal, being formed greatly with the contact area of conductor, reduce total resistance value thus, realize required thermal value simultaneously.But the resistance heater of the NTC characteristic of prior art fully cannot reduce total resistance value, be difficult to realize necessary thermal value.
Utility model content
The utility model provides a kind of well heater and the image processing system that can realize the NTC characteristic of required thermal value.
[solving the means of problem]
Comprising of the well heater of embodiment: strip substrate; Resistance heater, comprise a pair main part and bottom and entirety is formed as concavity, and be arranged side by side multiple in mode spaced apart from each other on the long side direction of described substrate, described a pair main part clips opening and is formed in side wherein, and described bottom is with described opening subtend and be connected described a pair main part in another side; And conductor, comprise the first conductor and the second conductor, the concavity peripheral part of resistance heater described in described first conductor contact, the concavity inner peripheral portion of resistance heater described in described second conductor contact.
In the well heater of embodiment, described resistance heater has negative temperature coefficient feature, and described first conductor on described resistance heater adjacent on described substrate long side direction is connected with described second conductor, and is in series electrically connected.
In the well heater of embodiment, described resistance heater makes described opening be arranged side by side towards the short side direction of described substrate, is obliquely installed in the mode overlapping at least partially of the described resistance heater be arranged side by side.
In the well heater of embodiment, the short side direction being listed in described substrate of described resistance heater is provided with multiple, on the direction parallel with the long side direction of described substrate, the concavity opening of described resistance heater and bottom subtend, be arranged side by side on the substrate dividually.
The image processing system of embodiment comprises: described well heater, heats the recording medium passed through; And roller, pressurizeed when described recording medium heats, and by carrying out described heating and described pressurization to described recording medium, and make the toner image being attached to described recording medium fixing.
[effect of utility model]
According to the utility model, can provide a kind of can reduce resistance heater total resistance value and well heater and the image processing system of necessary thermal value can be realized.
Accompanying drawing explanation
Fig. 1 (a), Fig. 1 (b) are the skeleton diagrams of the well heater of illustration first embodiment.
Fig. 2 is the skeleton diagram of the well heater of illustration second embodiment.
Fig. 3 (a), Fig. 3 (b) are illustration first embodiments and the skeleton diagram compared of the second embodiment.
Fig. 4 is the skeleton diagram of the well heater of illustration the 3rd embodiment.
Fig. 5 is the summary sectional view in the A-A' line direction of Fig. 4.
Fig. 6 is the skeleton diagram of the well heater of illustration the 4th embodiment.
Fig. 7 is the skeleton diagram of the well heater of illustration the 5th embodiment.
Fig. 8 is the skeleton diagram of the image processing system of example as well heater.
[explanation of symbol]
1,1A, 1B, 1D: well heater
2: substrate
6: protective seam
30: conductor
31,31a1 ~ 31a10,31a2', 31a3', 31b1 ~ 31b10: the first conductor
32,32a1 ~ 32a10,32a2', 32b1 ~ 32b10: the second conductor
40,40a1 ~ 40a10,40a2', 40a3', 40b1 ~ 40b10: resistance heater
41A1,41A2,41A2', 41A3,41A3', 41B1,41B3: heater block
50a: power consumption pole
100: image processing system
200: fixing film
300: backer roll
400: paper using
500,500': toner image
A10, A10', A20, A20', A30, A30': the shortest current path
C2, C2': portion
G1, G2: gap
W: space part
Embodiment
Below, with reference to accompanying drawing, each embodiment is described.
In addition, accompanying drawing is schematic or conceptual figure, and the size of each several part or ratio etc. may not be identical with material object.In addition, in the drawings and in which, to identical formation and action effect, also the description thereof will be omitted to use same-sign.
Below, with reference to Fig. 1 (a), Fig. 1 (b), the first embodiment is described.
The well heater 1A of present embodiment comprises substrate 2, conductor 30 and resistance heater 40.Resistance heater 40 comprises a pair main part and bottom and entirety is formed as concavity, and described a pair main part clips opening and formed in side wherein, and described bottom is with opening subtend and be connected a pair main part in another side.Resistance heater 40 has NTC characteristic, and has been arranged side by side multiple in mode spaced apart from each other on the long side direction of substrate.
Conductor 30 comprises the first conductor and the second conductor, the concavity peripheral part of described first conductor contact resistance heater, the concavity inner peripheral portion of described second conductor contact resistance heater.
The feature of resistance heater 40 is: on described resistance heater 40 adjacent on the long side direction of substrate 2, connect the first conductor and the second conductor, and be in series electrically connected.
As illustrated in Fig. 1 (a), Fig. 1 (b), resistance heater 40 is split on a substrate 2 and is formed, and can suppress the length of each resistance heater 40 on the long side direction of substrate 2 thus.In addition, due to the NTC characteristic of the resistance heater 40 being disposed in non-sheet feeding section can be played, therefore, it is possible to heat the recording medium of sizes efficiently.
In addition, when through the resistance heater 40 of segmentation is little with the contact length of conductor 30, resistance heater 40 high resistance, electric current is difficult to flowing.In the case, correct current value cannot be obtained, and be difficult to guarantee required thermal value.In order to make the resistance value of resistance heater 40 become right value, resistance heater 40 must be made to be formed greatly with the contact length of conductor 30.
As illustrated in Fig. 1 (a), Fig. 1 (b), the resistance heater 40 (40a1 ~ 40a10 and 40b1 ~ 40b10) of present embodiment is connected to the first conductor 31 (31a1 ~ 31a10 and 31b1 ~ 31b10), the second conductor 32 (32a1 ~ 32a10 and 32b1 ~ 32b10), and resistance heater 40 forms to obtain about about 2 times than ever with the contact length of conductor 30 thus.
First conductor 31 is formed in the mode of the concavity peripheral part of contact resistance heater 40a1.In addition, the second conductor 32 is formed as, extended from the first conductor 31, contacts inside the concavity entering the resistance heater 40a2 separating arranging on the long side direction of substrate 2.
By forming resistance heater 40 and conductor 30 in this way, the length of each resistance heater 40 on the long side direction of substrate 2 can be shortened, resistance heater 40 can be made simultaneously to be formed greatly with the contact length of conductor 30.
By making inside concavity peripheral part and concavity, both contact with conductor 30 resistance heater 40, and increase current flow path (hereinafter referred to as current path).
Current path in resistance heater 40 is the path of link first conductor 31 and the second conductor 32.According to this formation, the distance of each current path be present in resistance heater 40 is made to be formed short.
Resistance heater 40 exists many apart from short current path, and resistance value declines thus, and ER effect obtains and easily flows.Therefore, it is possible to obtain correct current value, well heater 1A can realize necessary thermal value.
Herein, as the variation of the shape of the second conductor 32, inside the concavity considering to enter the resistance heater 40 and front end that the line part of contact is formed with the concavity inner peripheral portion of multiple situations or contact resistance heater 40 is formed as curve-like etc. and the situation of non-linear shape.By such distortion, the contact length of resistance heater 40 and the second conductor 32 is formed larger than the first embodiment.
Second conductor 32 extended from the first conductor 31 is formed as, inside the concavity contacting on the long side direction of substrate 2 resistance heater 40 be arranged side by side of point ceding territory.Therefore, each resistance heater 40 utilizes conductor 30 and is in series electrically connected.Therefore, in each resistance heater 40, current value can not produce gap, and heating distribution in well heater 1A can be suppressed to become uneven phenomenon.
As long as arrange that concavity resistance heater 40 on a substrate 2 comprises a pair main part and bottom and entirety is formed as concavity, described a pair main part clips opening and is formed in side wherein, and described bottom is with described opening subtend and be connected described a pair main part in another side.As long as formed in this way, such as, except the concavity that entirety is mainly formed with straight line, still can be the shape or overall mainly by the U-shaped that curve is formed of portions incline.In addition, also can be curve and Straight Combination and the shape formed.Generally speaking, as long as have the form of the effect in the utility model and embodiment, just can be arbitrary form.
Segmentation on the long side direction of substrate 2 and the quantity of resistance heater 40 that is arranged side by side or the columns being provided with multiple resistance heaters 40 on the short side direction of substrate 2 are not limited to present embodiment.Can according to the kind of well heater or size, purposes and suitably changing.
Substrate 2 has thermotolerance and insulativity, is formed as rectangular-shaped in the present embodiment.Substrate 2 is that such as thickness is the flat board of about 0.5mm to 1.0mm, comprises pottery (ceramic), glass ceramics or the heat-resisting composites etc. such as aluminium oxide (alumina).As long as the shape of substrate 2 have short side direction and with the long side direction that short side direction intersects, be just not limited to present embodiment.
Next, with reference to Fig. 2 to Fig. 3 (a), Fig. 3 (b), the second embodiment is described.Resistance heater 40 entirety illustrated in Fig. 2 is formed as U-shaped.
Resistance heater 40 is that the bending mode of semicircle shape is formed with bottom integrated, and entirety is formed as U-shaped.The leading section of the second conductor 32 of the U-shaped inner peripheral portion of contact resistance heater 40 is also formed as U-shaped.
With reference to Fig. 3 (a), Fig. 3 (b), the first embodiment and the second embodiment are compared.Herein, the formation utilizing resistance heater 40, conductor 31 and conductor 32 to realize is called heater block (block) 41.
Fig. 3 (a) represents the heater block 41A3 of the first embodiment, and resistance heater 40a3 entirety is formed as concavity.In addition, the bottom of the first conductor 31a3 of the concavity peripheral part of contact resistance heater 40a3 is also formed as concavity.The front end of the second conductor 32a2 of the concavity inner peripheral portion of contact resistance heater 40a3 is formed as horn shape.
Fig. 3 (b) represents the heater block 41A3' of the second embodiment, and resistance heater 40a3' entirety is formed as U-shaped.In addition, the bottom of the first conductor 31a3' of the U-shaped peripheral part of contact resistance heater 40a3' is also formed as semicircle shape.The second conductor 32a2' extended from the first conductor 31a2' of the heater block 41A2' be arranged side by side is formed as, and inside the U-shaped of contact resistance heater 40a3', and its front end is formed as semicircle shape.
By in the current path of the concavity flows of resistance heater 40a3, the shortest current path A of the front end and resistance heater 40a3 that link the second conductor 32a2 is set to the shortest current path A10, the shortest current path A20, the shortest current path A30.Similarly, the shortest current path A of the U-shaped flows of resistance heater 40a3' is set to the shortest current path A10', the shortest current path A20', the shortest current path A30'.
In resistance heater 40a3, the shortest current path A10 and the shortest current path A30 are substantially identical length, but the shortest electric current pathway A20 grows than other the shortest current path A10 and the shortest current path A30.
Therefore, in the shortest current path A20, electric current is than flowing difficult in other the shortest current path A10, the shortest current path A30, thus thermal value tails off.In concavity resistance heater 40a3, because the length of the shortest current path A is different, heating distribution is caused to become uneven.
Be formed as U-shaped with the bottom of opening subtend in resistance heater 40a3', and the leading section of conductor 32a2' inside contact resistance heater 40a3' is also formed as U-shaped.Therefore, there is gap hardly in the length of the shortest current path A10', the shortest current path A20', the shortest current path A30'.In resistance heater 40a3', the length of the shortest current path A changes because position is different hardly, can suppress the inequality distributed of generating heat thus.
So, compared with concavity heater block 41, in U-shaped heater block 41, divided each heater block 41 generates heat equably, therefore, it is possible to suppress the inequality of the heating distribution of well heater 1B.
Next, with reference to Fig. 3 (a), Fig. 3 (b), the shape of heater block 41 and the interval that is arranged side by side of heater block 41 are described.
The gap be arranged side by side as when each heater block 41A parallel with the long side direction of substrate observes along paper feeding direction is called G.The gap of concavity heater block 41A2 and heater block 41A3 is set to G1, the gap of the U-shaped heater block 41A2' be arranged side by side and heater block 41A3' is set to G2.
Only arrange conductor 30 in clearance G, and do not arrange resistance heater 40, therefore do not generate heat.Therefore, the area of space part W is larger, and the heating distribution of well heater 1B becomes more uneven, and the fixation performance of toner is deteriorated.But the conductive paste (paste) as the material of conductor 30 must be guaranteed necessary interval and print on a substrate 2, in order to avoid be short-circuited with the conductor 30 of the heater block 41 be arranged side by side.
Such as, the conductor 31a3 of heater block 41A3, using when printing on a substrate 2 as the conductive paste of material, keeps necessary interval and prints, so as not to the concavity of the first conductor 31a2 of the heater block 41A2 be arranged side by side bottom be short-circuited.
Bottom the concavity of the first conductor 31a2 of heater block 41A2 and and the first conductor 31a3 of heater block 41A3 faced by its subtend owing to being fixing narrow interval when observing along paper feeding direction, easily contact when therefore being formed.
In contrast, the bottom of the first conductor 31a2' of heater block 41A2' is U-shaped, in the mode of the first conductor 31a3' faced by the subtend away from the heater block 41A3' be arranged side by side, towards resistance heater 40a2' U-shaped opening and formed.
Therefore, even if conductive paste oozes out during printing the first conductor 31a3', the first conductor 31a2' also not easily contacts when being formed with the first conductor 31a3'.
Therefore, U-shaped heater block 41A2' and the clearance G 2 of heater block 41A3' can be formed narrower than the clearance G 1 of concavity heater block 41A2 and heater block 41A3.
By making resistance heater 40 and conductor 30 be formed as U-shaped, the clearance G of the resistance heater 40 be arranged side by side can be made to be formed little, thus the heating of well heater 1B can be made to be more evenly distributed.
By making resistance heater 40 and conductor 30 be formed as U-shaped, the shortest current path in resistance heater 40 becomes even, and the clearance G of the resistance heater 40 be arranged side by side can be made to be formed narrow.Distribute to make the heating of well heater 1B and become even, effectively resistance heater 40 and conductor 30 are formed as U-shaped.
Next, with reference to Fig. 4 to Fig. 5, the 3rd embodiment is described.
In the illustration of Fig. 1 (a), Fig. 1 (b), the row of formation resistance heater 40a on a substrate 2, the row with resistance heater 40b, all openings of each resistance heater 40 are arranged towards the direction of power consumption pole 50a, and described power consumption pole 50a is formed in one of them end of the long side direction of substrate 2.
Herein, gap when being observed along paper feeding direction by each resistance heater 40 is called space part W.
In the case, when observing along paper feeding direction, arrange between each resistance heater 40 on a substrate 2 and there is space part W.Do not arrange resistance heater 40 at space part W, therefore do not generate heat.Therefore, the heating skewness of well heater 1A, and become and cause the fixing bad factor of partial tone agent.
In the diagram, the short side direction of substrate 2 separates and the row of the resistance heater 40a that arranges, opening with each resistance heater 40 of the row of resistance heater 40b, the long side direction of substrate 2 oppositely arranges respectively.
Herein, the formation comprising resistance heater 40, conductor 31 and conductor 32 is called heater block 41.
As exemplified in figure 4, heater block 41A1 by the C1 portion of dotted line, overlapping and formed when observing along paper feeding direction by the C2 portion of dotted line with heater block 41B1.
C1 portion is equipped with resistance heater 40a1 owing to arranging while conductor 30, therefore can generate heat, but C2 portion has only arranged conductor 30 therefore can not generate heat.
Summary sectional view when Fig. 5 is the A-A' direction observation along Fig. 4.
The C2 portion of heater block 41B1, overlapping and formed when observing along the paper feeding direction of well heater 1C with the C1 portion of heater block 41A1.
Recording medium can not be heated by the C2 portion begun through most, but is heated by the C1 portion passed through afterwards.
By making C1 portion and C2 portion overlap to form when observing along paper feeding direction, well heater 1C can, when observing along paper feeding direction, utilize the heating region in C1 portion to make up the non-heating region in C2 portion.
Similarly, the heating region in the C2' portion of heater block 41B3, overlapping and formed when observing along the paper feeding direction of well heater 1C with the non-heating region in the C1' portion of heater block 41A3, the heating region in C2' portion therefore can be utilized to make up the non-heating region in C1' portion.
When observing along paper feeding direction in well heater 1C, the necessary heated perimeter of recording medium is inherently by the heating region of well heater 1C.Therefore, well heater 1C can suppress the partial tone agent of the recording medium passed through fixing bad.
Next, with reference to Fig. 6, the 4th embodiment is described.
In the 4th embodiment, the opening of the concavity resistance heater 40 that the long side direction along substrate 2 is arranged side by side towards substrate 2 short side direction and formed.The opening of resistance heater 40 oppositely arranges with the opening of the resistance heater 40 be arranged side by side when observing along paper feeding direction.
Resistance heater 40 utilizes conductor 30 and is in series electrically connected on the long side direction of substrate 2, and arranges obliquely in the mode of overlapping at least partially (overlap) of the main part adjoined each other when observing along paper feeding direction.
In the third embodiment, the row of the resistance heater 40a that the short side direction of substrate 2 is spaced apart, when observing with the paper feeding direction be listed in along substrate 2 of resistance heater 40b, heating region makes up non-heating region, can make recording medium must by the heating position of well heater 1C thus.
But, when observing along the paper feeding direction of well heater 1C, making up the C portion of non-heating region, and the part that arrange overlapping with the resistance heater 40 that two arrange at heating region, passing to the heat difference of the recording medium passed through.Therefore, have following worry: in well heater 1C, because the position passed through is different, the heat causing recording medium to receive produces gap, thus the fixing of toner becomes uneven.
In the 4th embodiment, by making the resistance heater 40 be arranged side by side be obliquely installed on a substrate 2, and make the region of heating overlapping when observing along the paper feeding direction of well heater 1D.Thus, do not form space part W when observing along paper feeding direction, and following phenomenon can be suppressed: because heat that is that cause recording medium to receive produces gap by the position of well heater 1D is different.
In the 4th embodiment, the inequality of the heating distribution arranged in the region of resistance heater 40 can be suppressed, and the distribution of the heating in well heater 1D can be made to become even.
In order to make the heating of well heater 1D distribute become even, be preferably with make the opening of resistance heater 40 towards substrate 2 short side direction arrange and the mode of overlap be obliquely installed.
Next, with reference to Fig. 7, the 5th embodiment is described.
In the 5th embodiment, the opening of the U-shaped resistance heater 40 that the long side direction of substrate 2 is arranged side by side towards substrate 2 short side direction and formed.The opening of resistance heater 40 when observing along paper feeding direction with the opening of the resistance heater 40 be arranged side by side for oppositely arranging.
Resistance heater 40 utilizes conductor 30 and is in series electrically connected on the long side direction of substrate 2, and arranges obliquely in the mode of the overlap when observing along paper feeding direction.
In the 4th embodiment, resistance heater 40 is formed as concavity, in the 5th embodiment, be formed as U-shaped.
As described in Fig. 3 (a), Fig. 3 (b), when resistance heater 40 is formed as concavity, the length of the shortest current path A of resistance heater 40 is also different, and distribution of therefore generating heat becomes uneven.But when resistance heater 40 is formed as U-shaped, the length of the shortest current path A of resistance heater 40 becomes the same, thus easily becomes even in the heating distribution of well heater 1E.
In the 5th embodiment, the U-shaped resistance heater 40 be arranged side by side is obliquely installed in mode overlapping on a substrate 2, thus can suppress the inequality that distributes in the heating of well heater 1E.
In the present embodiment, illustrate the row of resistance heater 40 with 1 row, but also can form multiple row on the short side direction of substrate 2.In addition, the divided quantity of resistance heater 40 or columns are not limited to present embodiment, can according to the kind of well heater or size, purposes and suitably changing.
The kind of more than at least a kind or a kind in the oxide of the ruthenium (Ru), iridium (Ir), rhodium (Rh) etc. of resistance heater 40 containing 8 races, 9 races in the utility model, and containing being added with hopcalite and the silver (Ag) of titanium (Ti), manganese (Mn) and iron (Fe) etc. in the glass such as borosilicic acid.
Resistance heater 40, by adding titanium oxide, can make the temperature-coefficient of electrical resistance TCR (TemperatureCoefficientResistance) of well heater 1 be low to moderate the scope of-400ppm/ DEG C to-1000ppm/ DEG C, therefore more easily obtains NTC characteristic.If temperature-coefficient of electrical resistance exceedes-800ppm/ DEG C, the effect so suppressing the temperature of non-sheet feeding section to rise reduces.In well heater 1, in order to suppress the temperature spread of sheet feeding section and non-sheet feeding section to become excessive, the temperature-coefficient of electrical resistance of well heater 1 is preferably made to be reduced to about-950ppm/ DEG C.
Conductor 30 pairs of resistance heaters 40 supply electric power, and are formed on a substrate 2.The silver system conductive material that conductor 30 uses resistance value low, can make electric current be easy to flowing thus, thus improve the NTC characteristic of resistance heater 40 further.
Protective seam (overcoatlayer) 6 covers the conductor 30 and resistance heater 40 that are formed on a substrate 2, is formed as banded in the present embodiment.Protective seam 6 is glassy layers of the outstanding inorganic oxide filler of the thermal conductivity such as the aluminium oxide being such as added with 3 ~ 25 quality %.
Protective seam 6 is by covering conductor 30 and resistance heater 40; prevent conductor 30 and resistance heater 40 to be directly exposed in air, suppress conductor 30 and resistance heater 40 to damage breakage because of the interference (such as machinery, chemistry, electrical interference) from outside.
Next, an embodiment of the image processing system 100 possessing well heater 1 is described.Fig. 8 is the key diagram of the image processing system 100 represented as the example of well heater 1.Image processing system 100 comprises well heater 1, fixing film 200 and backer roll (pressroller) 300.Fixing film 200 be comprise the thermotolerance sheet materials (sheet) such as polyimide (polyimide) resin roll tubular membrane.Well heater 1 is configured with in the bottom of this fixing film 200.
Backer roll 300 is the rollers being configured to utilize turning axle to rotate.On the surface of this roller, be formed with the resilient material of silicone rubber (siliconerubber) layer as thermotolerance.Silicone rubber layer via fixing film 200 with well heater 1 Elastic Contact.
After well heater 1 is energized, resistance heater 40 produces heat, and this heat via substrate, and heats fixing film 200 and backer roll 300.And by the rotation of fixing film 200 and backer roll 300, when conveying is attached with the paper using 400 of toner image 500, toner image 500 is softening melting by heating.After this, in the paper using discharge side of backer roll 300, paper using 400 is left from well heater 1, toner image 500' natural heat dissipation and cooling curing, and leaves from image processing system.
According to the present embodiment, by using the well heater 1 of the excellent uniformity of heating distribution, the outstanding image processing system of fixation performance 100 can be realized.
In addition, in the present embodiment, the example of the fixing purposes of toner well heater 1 being used for image processing system 100 is illustrated.But the utility model is not limited to this embodiment.Such as, also can be arranged on home-use electric product, the precision equipment of public or experiment or the equipment etc. of chemical reaction, and be used as the thermal source of heating or insulation.
Embodiment of the present utility model is illustrated, but these embodiments exemplarily propose, do not attempt the scope limiting utility model.The embodiment of these novelties can be implemented by other various forms, in the scope of purport not departing from utility model, can carry out various omission, displacement, change.These embodiments or its be out of shape be included in utility model scope and purport in, and in the scope of the utility model be included in described in claim and equalization thereof.
Claims (5)
1. a well heater, is characterized in that comprising:
Strip substrate;
Resistance heater, comprise a pair main part and bottom and entirety is formed as concavity, and be arranged side by side multiple in mode spaced apart from each other on the long side direction of described substrate, described a pair main part clips opening and is formed in side wherein, and described bottom is with described opening subtend and be connected described a pair main part in another side; And
Conductor, comprises the first conductor and the second conductor, the concavity peripheral part of resistance heater described in described first conductor contact, the concavity inner peripheral portion of resistance heater described in described second conductor contact.
2. well heater according to claim 1, it is characterized in that: described resistance heater has negative temperature coefficient feature, described first conductor on described resistance heater adjacent on described substrate long side direction is connected with described second conductor, and is in series electrically connected.
3. well heater according to claim 1 and 2, is characterized in that: described resistance heater makes described opening be arranged side by side towards the short side direction of described substrate, is obliquely installed in the mode overlapping at least partially of the described resistance heater be arranged side by side.
4. well heater according to claim 1 and 2, it is characterized in that: the short side direction being listed in described substrate of described resistance heater is provided with multiple, on the direction parallel with the long side direction of described substrate, the concavity opening of described resistance heater and bottom subtend, be arranged side by side on the substrate dividually.
5. an image processing system, is characterized in that comprising:
Well heater according to claim 1, heats the recording medium passed through; And
Roller, is pressurizeed when described recording medium heats,
And by carrying out described heating and described pressurization to described recording medium, and make the toner image being attached to described recording medium fixing.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015044230A JP6387864B2 (en) | 2015-03-06 | 2015-03-06 | Heater and image forming apparatus |
| JP2015-044230 | 2015-03-06 |
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| Publication Number | Publication Date |
|---|---|
| CN205091543U true CN205091543U (en) | 2016-03-16 |
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| CN201520695761.3U Active CN205091543U (en) | 2015-03-06 | 2015-09-09 | Heater and image forming device |
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| JP (1) | JP6387864B2 (en) |
| CN (1) | CN205091543U (en) |
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| CN113056960A (en) * | 2018-11-26 | 2021-06-29 | 大日本印刷株式会社 | Transparent heating element, heating element with cover, sensor device, and moving body |
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| JP7470296B2 (en) | 2019-12-26 | 2024-04-18 | 株式会社リコー | Heating device and image forming apparatus |
| JP2022093918A (en) | 2020-12-14 | 2022-06-24 | 東芝テック株式会社 | Image forming apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57152691A (en) * | 1981-03-18 | 1982-09-21 | Matsushita Electric Works Ltd | Heater |
| JPH09161952A (en) * | 1995-12-07 | 1997-06-20 | Kurabe Ind Co Ltd | Sheet-form heating body |
| DE69732406T2 (en) * | 1997-05-09 | 2006-04-06 | David Sanchez Duque | Production method for surface heaters and surface heaters produced therewith |
| JP2007025474A (en) * | 2005-07-20 | 2007-02-01 | Canon Inc | Heating device and image forming apparatus |
| JP2009259714A (en) * | 2008-04-18 | 2009-11-05 | Sharp Corp | Surface heat generating element, fixing device equipped with it, and image forming device |
| KR101382052B1 (en) * | 2009-09-11 | 2014-04-04 | 캐논 가부시끼가이샤 | Heater and image heating device equipped with heater |
| JP5832149B2 (en) * | 2011-06-02 | 2015-12-16 | キヤノン株式会社 | Image heating apparatus and heater used in the apparatus |
-
2015
- 2015-03-06 JP JP2015044230A patent/JP6387864B2/en not_active Expired - Fee Related
- 2015-09-09 CN CN201520695761.3U patent/CN205091543U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113056960A (en) * | 2018-11-26 | 2021-06-29 | 大日本印刷株式会社 | Transparent heating element, heating element with cover, sensor device, and moving body |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2016164826A (en) | 2016-09-08 |
| JP6387864B2 (en) | 2018-09-12 |
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