KR20180087138A - Heater, fixing device, image forming device and heating device - Google Patents

Abstract

An object of the present invention is to provide a heater, a fixing apparatus, an image forming apparatus, a heating apparatus, and a heater manufacturing method excellent in cracking property even in a heater narrow in the sweeping direction, And the resistance heat generating wiring is provided with at least three rows of lateral wiring portions X arranged in the order of the first row, the second row and the third row in the sweeping direction D ₁ , At least one resistance heat generating wiring among the resistance heat generating wirings, a second heat transverse wiring portion X ₂ , a first heat transverse wiring portion X _1, and a second heat transverse wiring portion X ₁ are formed in a serpentine shape, column 3 of the transverse wire portion X ₃ shorter formed pattern P _1, or the second thermal transverse wire unit X _2, first heat lateral wire unit X ₁ and the third column the transverse wire unit and hold the pattern formed than X ₃ P ₂ .

Description

Heater, fixing device, image forming device and heating device

The present invention relates to a heater, a fixing device, an image forming apparatus, and a heating apparatus. More particularly, the present invention relates to a heater having a plurality of resistance wirings that generate heat by energization, a fixing device having such a heater, an image forming apparatus, and a heating apparatus.

As a heating means for performing a heat treatment of an object, there is known a heater in which a plurality of resistance heat generating wirings provided on a surface of a stainless steel plate or a ceramic plate to generate heat by energization are provided. Such a heater can be formed thinly and compactly. For example, the heater can be used for fixing toner or ink to a recording medium, for example, incorporated in a copying machine, a printer, or the like, Or may be used for the purpose of heating and drying. In these applications, a heater capable of magnetically uniformizing the temperature distribution in a surface to be heated by disposing a plurality of resistance heating wires on the heating surface of the heater is disclosed in Patent Documents 1 and 2.

International Publication No. 2013/073276 pamphlet

Patent Document 1 discloses a heater in which resistance heat generating wiring having a positive temperature coefficient of resistance is electrically connected in parallel. According to these heaters, since each of the resistance heat generating wirings has substantially the same heat generating characteristic, the resistance heat generating wirings of the respective resistors can mutually equalize the temperature distribution magnetically. Therefore, according to the technique disclosed in Patent Document 1, a higher degree of cracking becomes possible irrespective of the position on the substrate.

Further, according to the technique of Patent Document 1, the parallel wiring of the heat generating wiring includes the inclined rectangular pattern. Therefore, the non-formed portion of the wiring is inclined with respect to the long side direction or the width direction of the heater, so that the localized temperature rise of the resistance heat generating wiring portion at the time of use is not caused ([0023]).

Thus, the heater disclosed in Patent Document 1 is excellent in that excellent cracking can be performed.

On the other hand, there is a demand for a compact heater while maintaining the above-mentioned cracks. Particularly, a heater having a narrower width in the sweeping direction is desired. However, if the heater disclosed in Patent Document 1 is simply narrowed so as to be narrower in the sweeping direction, the influence of the inclined patterns disposed on both sides of the non-formed portion of the wiring becomes large, which makes it difficult to maintain the crack.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a heater having excellent crackability even in a heater narrow in the sweeping direction, a fixing device having such a heater, an image forming apparatus and a heater, The purpose.

The present invention is as follows.

The heater according to claim 1 is a heater for heating the object to be heated by sweeping at least one of the object and the heater in a sweeping direction in a state of being opposed to the object to be heated,

And a plurality of resistive heat generating wirings, each of which is separately supplied with power,

Wherein the resistance heat generating wiring includes at least three horizontal wiring portions arranged in the order of the first column, the second column and the third column in the sweeping direction and a vertical wiring portion connecting the horizontal wiring portions, Shaped,

And at least one resistance heat generating wiring among the resistance heat generating wirings has a pattern of any one of the following pattern (P ₁ ) or the following pattern (P ₂ ).

(P ₁ ): a pattern in which the second thermal transverse wiring portion X ₂ is formed shorter than the first thermal transverse wiring portion X ₁ and the third thermal transverse wiring portion X ₃ .

(P _2): the second column lateral wiring pattern portion (X ₂₎ is formed longer than the first transverse heat wire unit (X ₁₎ and the third column the transverse wire unit (X _3).

The heater according to claim 2 is the heater according to claim 1, wherein the resistance heat generating wiring having the pattern of (P ₁ ) and the resistance heat generating wiring having both of the resistance heat generating wiring having the pattern of (P ₂ ) ,

The resistance heat generating wiring having the pattern of (P ₁ ) and the resistance heat generating wiring having the pattern of (P ₂ ) are arranged adjacently.

The heater according to claim 3 is the heater according to claim 1 or 2, wherein the resistance heat generating wiring has a first wiring (L ₁ ) and a second wiring (L ₂ ) in a width direction substantially perpendicular to the sweeping direction, , The third wiring (L ₃ ), and the fourth wiring (L ₄ ) in this order, and includes at least four resistance heating wires,

A vertical wiring portion Y ₁₁₂ connecting the first and second vertical wiring portions X ₁₁ and X _{12 of} the first wiring line L ₁ and a second wiring portion Y _{112 of} the second wiring L ₂ The longitudinal end portion Y ₂₁₂ connecting the first column crossing portion X ₂₁ and the second column crossing portion X ₂₂ has an opposed portion A opposed to each other with a gap therebetween,

Of the second heat lateral wire unit (X ₂₂₎ and the third heat and jongbae line portion (Y ₂₂₃₎ connecting the transverse wire unit (X _23), the third wires (L ₃₎ of said second wire (L ₂₎ The vertical wiring portion Y ₃₂₃ connecting the second and third vertical wiring portions X ₃₂ and X ₃₃ has the opposed portion B opposed to each other with a gap therebetween,

A final longitudinal wiring portion Y ₃₁₂ connecting the first and second lateral wiring portions X ₃₁ and X _{32 of} the third wiring L ₃ and a second longitudinal wiring portion Y _{312 of} the fourth wiring L ₄ , The longitudinal wiring portion Y ₄₁₂ connecting the first and second vertical wiring _portions X ₄₁ and X ₄₂ has an opposed portion C opposed to each other with a gap therebetween,

Wherein the sweep trajectory of the gap of the opposed portion (B) is positioned between the sweep trajectory of the gap of the opposed portion (A) and the sweep trajectory of the gap of the opposed portion (C) A) of the gap and the sweep trajectory of the gap of the opposed portion (C).

The heater according to claim 4 is the heater according to any one of claims 1 to 3, wherein each of the resistance heat generating wirings has, in addition to the first column to the third column, in the sweeping direction, At least four rows of the horizontal wiring portion arranged side by side with the horizontal wiring portion and a vertical wiring portion connecting the horizontal wiring portion are formed in a serpentine shape,

(Y _S12 ) connecting the first and second heat transfer wirings (X _S1 and X _S2 ) of the resistance heat generating wiring (L _S ) among the resistance heat generating wirings; The longitudinal end portion Y _T12 connecting the first heat transverse wiring portion X _T1 and the second heat transitory wiring portion X _T2 of the resistance heat generating wiring L _T adjacent to the wiring L _S , (D), which is located at a predetermined position,

The third column the transverse wire unit (X _S3) and the fourth column jongbae line portion (Y _S34), and the resistance heating wire (L _T) for connecting the transverse wire unit (X _S4) of the resistance heating wire (L _S) The longitudinal end portion Y _T34 connecting the third row lateral wiring portion X _T3 and the fourth column lateral wiring portion X _T4 has the opposed portion E opposed to each other with a gap therebetween,

Wherein the sweep trajectory of the gap of the opposed portion (D) and the sweep trajectory of the gap of the opposed portion (E) do not overlap with each other.

According to a fifth aspect of the present invention, there is provided a heater according to any one of the first to fourth aspects, wherein the lateral wiring portion is longer than the longitudinal wiring portion.

The heater according to claim 6 is the heater according to any one of claims 1 to 5, wherein at least a part of the vertical wirings of the vertical wirings are inclined with respect to the sweeping direction.

The heater according to claim 7 is the heater according to any one of claims 1 to 6, wherein the resistance heating wire has a positive resistance heating coefficient.

A fixing device according to an eighth aspect of the present invention is provided with the heater according to any one of the first to seventh aspects.

An image forming apparatus according to a ninth aspect of the present invention is provided with the heater according to any one of the first to seventh aspects.

The heating device according to claim 10 is provided with the heater according to any one of claims 1 to 7.

According to the heater of the present invention, it is possible to make the heater excellent in the cracking property even in the heater narrow in the sweeping direction.

That is, the first row transverse wire unit (X ₁₎ and a second open transverse wire portion (X ₂₎ the long, and compared to the second heat transverse wire portion (X ₂₎ the third row transverse wire unit (X ₃₎ than short pattern (P _1), or, the first heat lateral wire unit (X ₁₎ is shorter than the second row transverse wire portion (X _2), also a second open transverse wire portion (X ₂₎ the third column By providing the long pattern P ₂ in comparison with the lateral wiring portion X ₃ , the sweep traces formed by the longitudinally wired portions of the patterns P ₁ and P ₂ can be dispersed so as not to overlap in the width direction In addition, even in a heater narrow in the sweeping direction, a heater excellent in cracking property can be obtained.

And the resistance heat generating wiring of the pattern P ₁ and the resistance heat generating wiring of the pattern P _{2. If} these resistance heat generating wirings are disposed adjacent to each other, the irregularities of the lateral wiring portions are engaged with each other The sweep trajectory formed by the dominant extension line portion can be dispersed so as not to overlap in the width direction, so that a dense whole pattern can be formed. Therefore, even in a heater narrow in the sweeping direction, a heater excellent in cracking property can be obtained.

The sweep trajectory of the gap of the opposed portion B is located between the sweep traces of the respective gaps of the opposed portion A and the opposed portion C and the sweep trajectory of the gap of the opposed portion B is located in the opposite It is possible to prevent the opposing portions, which are the regions where the vertical wiring portions are dense, from appearing regularly in the sweeping direction when they are biased toward either one of the sweep traces of the gaps between the portions A and the opposing portions C . Therefore, even in a heater narrow in the sweeping direction, a heater excellent in cracking property can be obtained.

When the resistance heat generating wiring is provided with at least four rows of transverse wiring portions in the sweeping direction and the sweep locus of the gap of the opposing portion D and the sweep traces of the gap of the opposing portion E are spaced apart in the width direction , It is possible to prevent the opposing portions, which are regions where the vertical wiring portions are dense, from appearing regularly in the sweeping direction. Therefore, even in a heater narrow in the sweeping direction, a heater excellent in cracking property can be obtained.

When the lateral wiring portion is longer than the longitudinal wiring portion, a pattern suitable for a heater that is longer in the width direction than the sweeping direction can be obtained. Therefore, even in a heater narrow in the sweeping direction, a heater excellent in cracking property can be obtained.

When at least a part of the vertical wirings are inclined with respect to the sweeping direction, heat applied to the object to be heated by the vertical wirings can be dispersed in the width direction at the time of sweeping. Therefore, even in a heater narrow in the sweeping direction, a heater excellent in cracking property can be obtained.

When the resistance heat generating wiring has a positive resistance heating coefficient, the heating state of each resistance heat generating wiring can be autonomously made uniform. Therefore, even in a heater narrow in the sweeping direction, a heater excellent in cracking property can be obtained.

1 is a plan view schematically showing an example of resistance heat generating wiring (pattern P ₁ ) in the present heater.
2 is a plan view schematically showing another example (pattern P ₂ ) of resistance heat generating wiring in the present heater.
3 is a plan view for schematically explaining an example of the arrangement of resistance heat generating wiring in the present heater.
Fig. 4 is a plan view for schematically explaining each part of the resistance heat generating wiring in the present heater. Fig.
5 is a plan view for schematically explaining each portion of the resistance heat generating wiring in the present heater.
Fig. 6 is a plan view schematically illustrating the opposing portions (A) to (C) of the resistance heating wire in the present heater.
Fig. 7 is a plan view schematically illustrating the opposing portions (D) to (E) of the resistance heating wiring in the present heater.
8 is a plan view schematically showing the heater of the first embodiment.
9 is a plan view schematically showing the heater of the second embodiment.
10 is a plan view schematically showing the heater of the third embodiment.
11 is a plan view schematically showing the heater of the fourth embodiment.
Fig. 12 is a plan view schematically showing the heater of Embodiment 5. Fig.
Fig. 13 is a plan view schematically showing a heater according to Embodiment 5 (similar to Fig. 12). Fig.
14 is a plan view schematically showing the heater of the sixth embodiment.
15 is a plan view schematically showing the heater of the seventh embodiment.
16 is a schematic perspective view showing an example of a fixing apparatus using this heater.
17 is a schematic perspective view showing another example of a fixing apparatus using this heater.
18 is a schematic view showing an example of an image forming apparatus using this heater.

Hereinafter, the present invention will be described in detail with reference to the drawings.

[1] Heaters

The present heater 1 is a heater for heating an object to be heated by sweeping at least one of the object to be heated and the present heater 1 in the sweeping direction D _{1 while} facing the object to be heated. The heater 1 includes a substrate 11 and a plurality of resistive heat generating wirings 12 separately supplied to the substrate 11.

(1) Correlation between the lengths of the lateral wiring portions (X _{1 to} X ₃ )

The resistance heat generating wiring 12 has at least three rows of lateral wirings X arranged side by side in the order of first, second and third columns in the sweeping direction D ₁ and between the lateral wirings X And has a longitudinal end portion Y to be connected thereto. The lateral end portion X and the longitudinal end portion Y are connected to form a serpentine shape. That is, each resistance heat generating wiring 12 has a pattern of a serpentine shape (hereinafter, simply referred to as a "serpentine pattern").

At least one resistance heating wire 12 among the plurality of resistance heating wires 12 has the following pattern (P ₁ ) or pattern (P ₂ ).

(P ₁ ): a pattern in which the second thermal transverse wiring portion X ₂ is formed shorter than the first thermal transverse wiring portion X ₁ and the third thermal transverse wiring portion X ₃ .

(P _2): the second column lateral wiring pattern portion (X ₂₎ is formed longer than the first transverse heat wire unit (X ₁₎ and the third column the transverse wire unit (X _3).

In this manner, by providing the pattern P ₁ (see FIG. 1) or the pattern P ₂ (see FIG. 2), the sweep traces formed by the domed line portions of these patterns are overlapped in the width direction D ₂ So that it can be dispersed.

That is, in the case where a plurality of resistance heat generating wirings 12 that are supplied separately are considered as one cell, conventionally, one cell is individually and independently arranged so as not to share a heat generating region with adjacent cells. In such an independent cell configuration, the lateral wirings of adjacent independent cells are separated so as not to overlap in the sweeping direction. However, in such an independent cell arrangement, a region in which the vertical interconnection is concentrated and linearly connected is formed at the boundary between the independent cells. Even if there is a region in which the above-described vertical wirings are dense and linearly connected, the heat quantity of the lateral wirings is set so that the area is once passed at any place of the object to be heated at the time of sweeping. By performing a larger number of patternings, it is possible to prevent the deviation of the heating.

However, in the heater narrow in the sweeping direction, the width in the sweeping direction can not be ensured, so that patterning can not be performed with the number of rows of the horizontal wiring increased. As a result, the region where the vertical wirings are closely packed and linearly connected to the object to be heated is locally swelled, and the heating is deviated.

In contrast, according to the present invention, the pattern (P ₁ ) or the pattern (P ₂ ) is provided so that the horizontal wiring of a predetermined cell is patterned so as to enter the adjacent cell. That is, the pattern P _{1 is} formed so that the second thermal transverse wiring portion X ₂ is shorter than the first thermal transverse wiring portion X ₁ and the third thermal transverse wiring portion X 3, Likewise, it is possible to secure a region for accommodating the pattern of the other resistance heating wiring 12 in the region surrounded by the dotted line. Similarly, the pattern P _{2 is} formed such that the second thermal transverse wiring portion X ₂ is longer than the first thermal transverse wiring portion X ₁ and the third thermal transverse wiring portion X ₃ , It is possible to secure a region for accommodating the pattern of the other resistance heating wiring 12 in the region surrounded by the dotted line. By having these regions, it is possible to perform the patterning in which the lateral wirings of the predetermined cells are inserted into the adjacent cells. Therefore, the heat generating region can be shared between adjacent cells. In such a configuration, even a heater narrow in the sweeping direction can be prevented from forming a region in which the vertical wiring is dense and linearly connected, so that the vertical wiring can be dispersed so as not to be concentrated.

As described above, each of the resistance heating wires 12 included in the present heater has at least three rows of horizontal wiring portions 12 arranged in the order of the first column, the second column and the third column in the sweeping direction D ₁ , (X). That is, the resistance heat generating wiring 12 constituting the present heater may be a pattern having only these three rows as the lateral wirings X, but may include four or more horizontal wirings X. In the case where four or more horizontal wiring portions X are provided, the first, second, and third rows are formed by connecting three consecutive horizontal wiring portions X of the resistance heat generating wiring 12 It may be taken out.

The resistance heat generating wiring 12 provided in the present heater is provided with a longitudinal wiring portion Y for connecting between the lateral wiring portions X, respectively. These transverse wiring portions X and the longitudinal wiring portions Y are connected to each other so that the resistance heat generating wiring 12 as a whole has a pattern of a serpentine shape (hereinafter, simply referred to as a "serpentine pattern" ).

Naturally, the heater may be provided with only the resistance heating wiring having the above-described serpentine pattern on the substrate, and the resistance heating wiring having another shape without the serpentine pattern may be formed as a resistor having a serpentine pattern It may be provided in addition to the heat generating wiring.

Wherein the pattern (P ₁₎ has a first open transverse wire unit (X ₁₎ it is long compared to the second row transverse wire portion (X _2), also a second open transverse wire portion (X ₂₎ the third row transverse wire unit (X ₃ ).

That is, in other words, the second placed between the open transverse wire portion (X ₂₎ is, sweep direction (D ₁₎ in the first column transverse wire unit (X ₁₎ and the third column the transverse wire unit (X ₃₎ to And the length in the width direction D ₂ of the second row cross wiring portion X ₂ is equal to the width direction D of the first column cross wiring portion X ₁ and the third column cross wiring portion X _{3 2} ).

Thus, the first column the length in the transverse direction (D ₂₎ of the transverse wire portion (X ₁₎ is referred to as L _X1, the second column the length in the transverse direction (D ₂₎ of the transverse wire portion (X ₂₎ L _X2 La L _X1 > L _X2 "and" L _X3 > L _X2 "when the length in the width direction D ₂ of the third row vertical wiring portion X ₃ is L _X3 .

The degree of each end is not particularly limited, but may be, for example, 0.05? L _X2 / {(L _X1 + L _X3 ) / 2} <1. This value is preferably 0.2? L _X2 / {(L _X1 + L _X3 ) / 2}? 0.95, more preferably 0.5? L _X2 / {(L _X1 + L _X3 ) / 2}? Particularly, in the case where L _X2 / {(L _X1 + L _X3 ) / 2} is 0.5 or more, the first thermal transverse wiring portion X ₁ , the second thermal transverse wiring portion X ₂ , that the respective lengths of the (X ₃₎ excessively different is suppressed. This configuration is particularly suitable when the resistance heat generating wiring 12 has a positive resistance heating coefficient as described later. That is, since the length is prevented from being excessively different from each other, the resistance heating wiring 12 can autonomously make the heating state uniform.

Here, the lengths of the _first and the third horizontal cross wiring parts X ₁ and X ₂ in the width direction D ₂ may be longer than the other lengths or may be the same length.

Wherein the pattern (P ₂₎ has a first open transverse wire unit (X ₁₎ and the second column is short compared with the transverse wire portion (X _2), also a second open transverse wire portion (X ₂₎ the third row transverse wire unit (X ₃ ).

That is, in other words, the second placed between the open transverse wire portion (X ₂₎ is, sweep direction (D ₁₎ in the first column transverse wire unit (X ₁₎ and the third column the transverse wire unit (X ₃₎ to And the length in the width direction D ₂ of the second row cross wiring portion X ₂ is equal to the width direction D of the first column cross wiring portion X ₁ and the third column cross wiring portion X _{3 2} ).

Thus, the first column the length in the transverse direction (D ₂₎ of the transverse wire portion (X ₁₎ is referred to as L _X1, the second column the length in the transverse direction (D ₂₎ of the transverse wire portion (X ₂₎ L _X2 La and the third column when the length in the transverse direction (D ₂₎ of the transverse wire portion ₍₃ X) a L as _X3, "L _{X1 <X2} L" is also "L _{X3 <X2} L".

In addition, the degree of each long end is not particularly limited, but may be, for example, 1 < L _X2 / {(L _X1 + L _X3 ) / 2} This value is _{1.05≤L X2 / {(L X1 +} L X3) / 2} ≤3 are preferable, and _{1.1≤L X2 / {(L X1 +} L X3) / 2} ≤2 is more preferable. Particularly, in the case where L _X2 / {(L _X1 + L _X3 ) / 2} is 2 or less, the first thermal transverse wiring portion X ₁ , the second thermal transverse wiring portion X ₂ , that the respective lengths of the (X ₃₎ excessively different is suppressed. This configuration is particularly suitable when the resistance heat generating wiring 12 has a positive resistance heating coefficient as described later. That is, since the length is prevented from being excessively different from each other, the resistance heating wiring 12 can autonomously make the heating state uniform.

Here, the lengths of the _first and the third horizontal cross wiring parts X ₁ and X ₂ in the width direction D ₂ may be longer than the other lengths or may be the same length.

In the pattern P ₁ and the pattern P ₂ , one resistance heat generating wiring 12 may have both of these characteristics. Concretely, for example, a lateral wiring portion X having a predetermined length in the width direction D ₂ and a lateral wiring portion X 'having a length in the width direction D ₂ shorter than the lateral wiring portion X are formed, The resistance heating wire 12 having a pattern alternately provided in the sweep direction has both the characteristics of the pattern P ₁ and the pattern P ₂ .

In addition, the first thermal length L _X2 in the horizontal wiring portion (X ₁₎ in the width direction (D ₂₎ length L _X1, the second column the transverse direction (D ₂₎ of the transverse wire portion (X ₂₎ of the third heat lateral The length of the lateral wiring portion such as the length L _X3 of the wiring portion X ₃ in the width direction D ₂ is measured as shown in Figs. 4 and 5. In other words, it is assumed that a virtual line U perpendicular to the sweeping direction is assumed, and the longest length defined by this imaginary line U is the length of each lateral wiring portion.

The pattern P ₁ and the pattern P ₂ described above are patterns of at least one resistance heat generating wiring among a plurality of resistance heat generating wirings 12 arranged on the substrate and pattern P ₁ or pattern P ₂ , It is preferable that the resistive heat generating wiring 12 having both of the pattern P ₁ and the pattern P ₂ as a pattern of two different resistance heating wiring patterns among the plurality of resistance heating wiring patterns 12 disposed on the base desirable.

As described above, in the case of the heater having both of the patterns P ₁ and P ₂ as the patterns of the two different resistance heating wires 12, the patterns P ₁ and P ₂ are irregularly arranged However, they may be disposed adjacent to each other (see Figs. 3 and 8 to 14).

The concavo-convex portions of the transverse wiring portions X can be engaged with each other, so that the swath locus formed by the longitudinal portion Y is dispersed so as not to overlap in the width direction D ₂ , So that a dense whole pattern can be formed. Therefore, it is possible to make the heater excellent in the cracking property even in the heater narrow in the sweeping direction. Furthermore, it is preferable that the pattern P ₁ and the pattern P ₂ are alternately arranged in at least three adjacent resistance heat generating wirings 12. That is, for example, a pattern in which the pattern P ₁ , the pattern P ₂ and the pattern P ₁ are arranged in this order in the width direction D ₂ , the pattern P ₂ and the pattern P ₁ , And the pattern P ₂ are arranged side by side in the width direction D ₂ in this order.

Particularly, as described later, the pattern P ₁ and the pattern P ₂ preferably have the same resistance value measured under the same conditions. In particular, the pattern P ₁ and the pattern P ₂ preferably have the same resistance value (the sum of the cross- The length is the same).

The number of resistance heat generating wirings 12 disposed on one substrate is not particularly limited, but may be 3 or more, for example. The upper limit can be set to an appropriate number according to the length of the gas in the width direction, but can be set to, for example, 24 or less.

The resistance heat generating wiring 12 may be arranged in any manner, and the arrangement is not particularly limited. For example, the resistance heat generating wiring 12 may be arranged side by side in the width direction D ₂ substantially perpendicular to the sweeping direction D ₁ .

When the plurality of resistance heat generating wirings 12 are arranged side by side in the width direction D ₂ , the end portions Y of the resistance heat generating wirings 12 are arranged so that the resistance heat generating wirings 12 , But it is preferable that the present heater is opposed to each other with a gap therebetween. In other words, it is preferable that the longitudinal wirings Y of the adjacent resistance heat generating wiring 12 are opposed to each other with a gap therebetween to form the opposed portion Z (see Fig. 3).

(2) Correlation between opposing points (A to C)

In the present heater, when at least four resistance heat generating wirings 12 having at least three rows of horizontal wiring portions X in the sweeping direction D ₁ are arranged side by side in the width direction D ₂ , By placing the sweep locus T _B of the gap of the opposed portion B between the opposed portion A and the opposed portion C and biasing the opposed portion A to either of the opposed portions A and C, (See FIG. 6).

That is, in the heater, sweep direction (D ₁₎ as is in the transverse direction (D ₂₎ substantially perpendicular to the first line (L _1), second wiring (L _2), the third wires (L _3), the The opposite ends can be formed between the longitudinal wirings Y of the adjacent resistance heat generating wirings 12 in the form of the four resistance Wirings 12 arranged in the order of the four wirings L ₄ .

In this case, the end portion Y _{112 of} the first wiring L _{1 is} connected to the first wiring portion X ₁₁ and the second wiring portion X _{12 of} the first wiring L 1, ₂₎ as a first heat jongbae line portion (Y ₂₁₂₎ are the facing portions facing with a gap, an opposing portion (a) for connecting the cross wire unit (X ₂₁₎ and a second open transverse wire unit (X _22), and ,

The first of the two wires (L ₂₎ of the second heat lateral wire unit (X ₂₂₎ and the third heat and jongbae line portion (Y ₂₂₃₎ connecting the transverse wire unit (X _23), the third wires (L ₃₎ 2 The opposing portion where the terminal vertical portion Y ₃₂₃ connecting the thermal transverse wiring portion X ₃₂ and the third thermal transverse wiring portion X ₃₃ are opposed to each other with a gap is referred to as an opposing portion B,

A vertical wiring portion Y ₃₁₂ connecting the first and second horizontal wiring portions X ₃₁ and X _{32 of} the third wiring L ₃ and a first wiring portion Y _{312 of} the fourth wiring L ₄ , In the case where the opposing portion where the longitudinal crossing portion Y ₄₁₂ connecting the first and second heat transverse wiring _portions X ₄₁ and X ₄₂ are opposed to each other with a gap is referred to as an opposing portion C,

As soon positioned between stamp of the gap between the opposing portions (B) the trajectory (T _B) is, the counter positions (A) stamp of gap locus of (T _A), a stamp of the gap between the opposing portion (C) the trajectory (T _C) It is preferable to be biased toward one of the sweep trajectory T _A of the gap of the opposed portion A and the sweep trajectory T _c of the gap of the opposed portion C (see FIG. 6).

That is, for this form, the two longitudinal wiring portions of the longitudinal wiring portion Y ₂₂₃ and the longitudinal wiring portion Y ₃₂₃ forming the opposed portion B are all connected to the side of the opposed portion A or the opposed portion C .

For example, the intersection point B of the gap between the opposed portion _A and the opposed portion B may be offset to the opposed portion A or the opposed portion C. However, The length of the gap in the widthwise direction D ₂ of the gap of the sweep trajectory T _B of the gap of the gap G ₁ is W _AB and the length of the gap G ₂ of the gap of the gap G ₂ between the sweep locus T _B of the gap of the opposed portion _B and the opposed portion C locus can be made, 0.02≤W _AB / W _BC ≤50 in the case where the length in the transverse direction (d ₂₎ of the gap W of LA _BC (T _C) (see Fig. 6). This value, 0.1≤W _AB / W _BC ≤10 are preferred, more preferably 0.15≤W _AB / W _BC ≤6.5.

As described above, the sweep trajectory of the gap of the opposed portion B is located between the sweep traces of the respective gaps of the opposed portion A and the opposed portion C, and the sweep trajectory of the gap of the opposed portion B Is positioned biased toward one of the sweep locus of the gap between the opposed portion A and the opposed portion C, the opposed portion, which is the dense region of the longitudinal overlap portion Y, is located in the sweeping direction D ₁ ) Can be prevented from being regularly displayed. Therefore, it is possible to make the heater excellent in the cracking property even in the heater narrow in the sweeping direction.

The shapes of the pattern P ₁ and the pattern P ₂ are the same as those of the first wiring L ₁ , the second wiring L ₂ , the third wiring L ₃ and the fourth wiring L ₄ The resistive heating wiring may not be provided and other resistance heating wiring may be formed as a heater by having the pattern P ₁ and / or the pattern P ₂ . However, in the heater, the first wiring (L _1), second wiring (L _2), the third wires (L ₃₎ and the fourth wiring is at least one resistance heating wire of the (L _4), the pattern (P ₁ ) Or a pattern (P ₂ ).

In this heater, the first wiring (L _1), second wiring (L _2), the third wires (L ₃₎ and the fourth wires (L ₄₎ of the second wiring (L ₂₎ and the third wire (L ₃ ) preferably have a pattern (P ₁ ) and a pattern (P ₂ ), respectively. That is, for example, the second wiring L ₂ has the pattern P ₁ , the third wiring L ₃ has the pattern P ₂ , or the second wiring L ₂ has the pattern P ₂ ), and the third wiring (L ₃ ) has a pattern (P ₁ ). Such a configuration can be more compactly integrated in the region where the resistance heating wiring exists and is preferable from the viewpoint of the function of balancing the temperature (refer to Figs. 8 and 10 to 14).

(3) Correlation between opposing points (D to E)

When at least two resistance heat generating wirings 12 having at least four rows of lateral wiring portions X in the sweeping direction D ₁ are arranged side by side in the width direction D _{2 in} this heater, , It is possible to make the heater excellent in the cracking property because the sweep locus of the gap of the opposed portion D and the sweep locus of the gap of the opposed portion E do not overlap with each other in the width direction as shown in Fig. .

In this heater, the resistance heat generating wiring 12 has at least four horizontal wiring portions X arranged in the order of the first column, the second column, the third column and the fourth column in the sweeping direction D ₁ Lt; / RTI &gt; The resistance heat generating wiring 12 constituting the heater may be a pattern having only these four rows as the lateral wirings X, but it may be provided with five or more rows of the lateral wirings X. The first row, the second row, the third row, and the fourth row are connected to each other in the longitudinal direction of the transverse wiring portion X of the resistance heat generating wiring 12 And may have taken out four of them.

The resistance heat generating wiring 12 provided in the present heater is provided with a longitudinal wiring portion Y for connecting between the lateral wiring portions X, respectively. These transverse wiring portions X and the longitudinal wiring portions Y are connected to each other so that the resistance heat generating wiring lines L _S and L _T as a whole are formed in a sinuous pattern.

In this heater, at least two resistance heat generating wirings 12 having at least four horizontal wiring portions X as described above may be provided adjacently.

That is, a predetermined resistance heat generating wiring (L _S ) having at least four horizontal wiring portions (X) in the width direction (D ₂ ) substantially perpendicular to the sweeping direction (D ₁ ) and at least four horizontal wiring portions Two resistance heat generating wirings 12 of a predetermined resistance heat generating wiring (L _T ) having a plurality of resistance heat generating wirings (X) can be arranged adjacently. In this configuration, opposing portions can be formed between the longitudinal wirings Y of the resistance heat generating wirings L _S and L _T.

In this case, part 1 open transverse wire of resistance heating wire (L _S) (X _S1) and second heat jongbae line portion connecting the lateral wire unit (X _S2) (Y _S12), and a resistance heating wire (L _T) of as a first open transverse wire unit (X _T1) and a second open transverse wire unit (X _T2) jongbae line portion (Y _T12) has a counter portion facing with a gap, an opposing portion (d) for connecting and ,

The third column the cross wiring portion of the resistance heating wire (L _S) (X _S3) and the fourth third heat jongbae line portion (Y _S34), and a resistance heating wire (L _T) for connecting the transverse wire unit (X _S4) In the case where the opposing portion where the longitudinal wiring portion Y _T34 connecting the thermal transverse wiring portion X _T3 and the fourth thermal transverse wiring portion X _T4 oppose to each other with a gap is referred to as an opposing portion E,

Stamp on the opposed positions (D) gap sweep trajectory (T _D) and the opposing portions (E) sweep trajectory (T _E) are preferably non-overlapping, and further the opposing portion (D) of the gap of the gap between the trajectory (T _D and the sweep trajectory T _E of the gap between the opposed portions E are preferably spaced in the width direction (see FIG. 7).

That is, it is preferable that the distance W _DE between the swath trajectory (T _D ) and the swath trajectory (T _E ) exceeds 0 탆. More specifically, W _DE is preferably equal to or greater than the width of the smaller trajectory of the sweep trajectory (T _D ) and the sweep trajectory (T _E ) in the width (width in the width direction D ₂ ) Do. On the other hand, it is preferable that the W _DE is smaller than the width of the sweep trajectory (T _D ) and the width of the sweep trajectory (T _E ). Such a configuration can be more compactly integrated in the region where the resistance heating wiring exists and is preferable from the viewpoint of the self-temperature balancing action.

In this way, the counter portion (D) sweep trajectory (T _D) and the opposing portions (E) sweep trajectory (T _E) do not overlap is, the counter positions (D) stamp in the gap trajectory (T _D of the gap of the gap And the sweep trajectory T _E of the gap between the opposed portions E are spaced apart in the width direction, the opposed portions as dense regions of the longitudinal denser portions Y regularly appear in the sweeping direction D ₁ Can be prevented. Therefore, it is possible to make the heater excellent in the cracking property even in the heater narrow in the sweeping direction.

Further, the first wiring (L _1), second wiring (L _2), the third wires (L ₃₎ and a fourth in the wire (L _4), the above-described pattern (P ₁₎ and the pattern (P ₂₎ and The shape may be either provided or not, and is not particularly limited.

Naturally, the resistance heat generating wiring 12 has at least four rows of lateral wiring portions X arranged in the order of the first row, the second row, the third row and the fourth row in the sweeping direction D ₁ And the longitudinal wiring portion Y connecting the lateral wiring portions X. The lateral wiring portion X and the longitudinal wiring portion Y are connected to form the resistance heating wiring lines L _S and L _T as a whole, The second wiring L ₂ , the third wiring L ₃ and the fourth wiring L _{4 in the} width direction D ₂ in the order of the first wiring L ₁ , the second wiring L ₂ , And at least four resistance heating wirings 12 are provided and when the opposing portions are formed between the longitudinal wirings Y of the adjacent resistance heating wirings 12, To (E) can be provided at the same time.

That is, between the stamp of the gap between the opposing portions (B) the trajectory (T _B) is, the counter positions (A) stamp of gap locus of (T _A), a stamp of the gap between the opposing portion (C) the trajectory (T _C) position as soon biased together, the side of one of the opposing portions (a) stamp of gap locus of (T _a) and the sweep trajectory (T _C) of the gap between the opposing portion (C) side is positioned, and the gap of the opposing portion (D) The sweep trajectory T _D of the gap _D and the sweep trajectory T _E of the gap between the opposed portions E do not overlap with the sweep trajectory T _D of the gap of the opposed portion D, The trajectory of the sweep of the trajectory T _E may be spaced apart in the width direction (see Figs. 12 to 14).

(4) Resistive heating wiring

In the resistance heating wire 12 disposed in the heater, the lateral wiring portion X and the longitudinally wide wiring portion Y may be the same length or both may be longer. However, Is preferably formed longer than the line section (Y). This is because each of the patterns described above functions more effectively in a pattern in which the lateral wiring portion X is longer than the longitudinal wirings Y. [

The length of the transverse wiring section X in the width direction D ₂ is L _x and the length of the transverse wiring section X in the longitudinal direction is set to be L _x , For example, 1 < L _X / L _Y &amp; le; 1000 in the case where the length of the sweeping direction (D ₁ ) of the image _Y is L _Y. The ratio is preferably 1.5 L _X / L _Y 300, more preferably 2 L _X / L _Y 150.

The measurement of the length L _X in the width direction D ₂ of the transverse wiring portion X is as shown in Figs. 4 and 5, as described above. That is, a virtual line U perpendicular to the sweeping direction is assumed, and the longest length defined by the imaginary line U is referred to as a length L _X of the lateral wiring portion X. On the other hand, the measurement of the length L _Y in the sweeping direction D ₁ of the longitudinal dashed line Y is as shown in Figs. 4 and 5. That is, imaginary line U perpendicular to the sweeping direction is assumed, and the longest length defined by this imaginary line U is called the length L _Y of the longitudinal end portion Y.

The horizontal wiring portion X and the longitudinal wiring portion Y constituting the resistance heat generating wiring 12 may be curved, respectively, but it is preferable that the horizontal heating portion is a linear pattern in this heater.

The transverse wiring portion X constituting the resistance heat generating wiring 12 may be arranged substantially perpendicular to the sweeping direction D ₁ . More specifically, and it may be disposed at 90 degrees with respect to the sweep direction (D _1), may be inclined at a predetermined angle with respect to the sweep direction (D _1). Of these, when inclined with respect to the sweeping direction (D ₁ ), it is usually in the range of more than 80 degrees and not more than 100 degrees (excluding 90 degrees) with respect to the sweeping direction (D ₁ ). Although there are a plurality of rows of the horizontal wiring portions X, they do not have to be parallel to each other, but are preferably parallel to each other.

On the other hand, jongbae grounding line (Y) constituting the resistance heating wire 12 is that it can open a connection to the lateral wire unit (X) adjacent to each other electrically and disposed shape is not particularly limited, with respect to the normal sweep direction (D ₁₎ Parallel or inclined. Specifically, the arrangement may be 0 degrees with respect to the sweep direction (D _1), may be inclined at a predetermined angle with respect to the sweep direction (D _1). Among them, it is possible to sweep in the direction inclined with respect to the case where (D _1), sweep direction (D ₁₎ the range of no less than 80 -80 even with respect to. The angle is preferably -60 degrees to 60 degrees, more preferably -50 degrees to 50 degrees.

The end portions Y may be formed in different arrangements. However, from the viewpoint of forming the opposed portions, it is preferable that the end portions Y of the adjacent resistance heat generating wirings are substantially parallel to each other. That is, for example, as described above, the vertical wiring portion Y ₁₁₂ of the first wiring line L ₁ and the vertical wiring line portion Y ₂₁₂ of the second wiring L ₂ , which constitute the opposing portion A, It is preferably parallel. The same applies to the opposing portions (B) to (E) and other opposing portions.

The conductive material constituting the resistance heat generating wiring of the present heater is a conductive material capable of generating heat according to the resistance value by energization. The kind of the conductive material used for the resistance heat generating wiring is not particularly limited. For example, silver, copper, gold, platinum, palladium, rhodium, tungsten, molybdenum, rhenium (Re) and ruthenium (Ru) can be used. These may be used alone or in combination of two or more. When two or more kinds are used in combination, an alloy may be used. More specifically, a silver-palladium alloy, a silver-platinum alloy, a platinum-rhodium alloy, silver-ruthenium, silver, copper and gold can be used.

Although each resistance heat generating wiring may have any resistance heating characteristic, it is preferable that the resistance heating wiring can exhibit a self-temperature balancing action (self-temperature compensating action) between the respective resistance heat generating wirings. From this viewpoint, it is preferable that the conductive material constituting the resistance heat generating wiring has a positive resistance heating coefficient. Specifically, it is preferable that the resistance temperature coefficient in a temperature range of -200 DEG C to 1000 DEG C is 100ppm / DEG C or more and 4400ppm / DEG C or less, more preferably 300ppm / DEG C or more and 3700ppm / DEG C or less, And more preferably not more than 3000 ppm / ° C. Examples of such a material include silver-based alloys such as silver-palladium alloys.

In this way, when resistance heat generating wiring formed using a conductive material having a positive temperature coefficient of resistance is connected in parallel, the plural resistance heat generating wirings exert the function of self-temperature balancing. That is, for example, when the second resistance heating wire is sandwiched between the first resistance heating wire and the third resistance heating wire and the temperature of the second resistance heating wire is lowered, And is supplemented from the third resistance heating wire. As a result, the current to the first resistance heating wire and the third resistance heating wire whose temperature has decreased is increased, and the action of autonomously recovering the temperature drop due to the detached heat is activated. That is, the resistance heat generating wiring around the second resistance heat generating wiring acts to compensate the temperature decrease of the second resistance heating wiring. As described above, the present heater can be autonomously controlled to uniformly generate heat across a plurality of resistance heat generating wirings.

The dimensions (width, length, thickness, etc.) of the resistance heat generating wiring are not particularly limited and can be appropriately determined according to the conductive material to be used and the required electric characteristics. However, from the viewpoint of obtaining a more excellent function of the self-temperature balance, the sweep traces of the first heat transverse wiring portion (X _Q1 ) of the predetermined resistance heat generating wiring (L _Q ) among the resistance heat generating wirings, (X _Q2) sweep trajectory and the third column length (K) that sweep trace overlap both of the transverse wire portion (X _Q3) of the first heat lateral wire unit (X _Q1), part 2 column transverse wires ( (Upper limit: 33.333%) with respect to the total length of the third row cross wiring portion (X _Q2 ) and the third column cross wiring portion (X _Q3 ). With this range, the regions where the resistance heat generating wiring is present become more compact, and a better function of the self-temperature balance can be obtained as compared with the case where the resistance heating wiring is out of the above range. This value is more preferably 10% or more, and particularly preferably 19% or more. The ratio is preferably larger, but may be, for example, 33% or less, more preferably 32% or less, particularly preferably 31% or less.

Further, in the case where the respective resistance heat generating wirings are made to have substantially the same heat generating amount, the resistance heat generating wirings may be formed so as to have substantially the same resistance value. In this case, the resistance heat generating wiring can be formed as a similar wiring pattern with the same line length, the same line width, and the same thickness. The thickness of the resistance heat generating wiring can be set to, for example, not less than 3 μm and not more than 40 μm from the viewpoint of the area resistivity.

Also, having substantially the same calorific value means that each resistance heat generating wiring has substantially the same resistance temperature coefficient and resistance value under the same measurement conditions. For example, the difference in resistance temperature coefficient between resistance heating wires is within ± 20%, and the difference in resistance value between resistance heating wires can be within ± 10%.

(5) About gas

The substrate 11 is a substrate for supporting the resistance heat generating wiring.

The size and shape of the substrate are not particularly limited, but particularly when the length in the width direction D ₂ is longer than the length in the sweeping direction D ₁ , the effect of the constitution of the present invention is easily obtained. Specifically, for example, when the length of the sweeping direction (D ₁ ) of the gas is L _D1 and the length of the gas in the width direction (D ₂ ) is L _D2 , the length ratio (L _D1 / L _D2 ) Can be 0.001 or more and 0.25 or less. This ratio is more preferably 0.005 or more and 0.2 or less, and still more preferably 0.01 or more and 0.15 or less. The thickness may be 0.1 to 20 mm, for example, depending on the material and dimensions of the base body.

The material of the substrate is not particularly limited as long as it can generate heat of the resistance heat generating wiring on the surface thereof. As the base, for example, metals, ceramics, and composite materials thereof can be used. When a conductive material such as a metal is used, the base may be formed by forming an insulating layer (not shown) on the conductive material. In this case, the resistance heat generating wiring is formed on the insulating layer.

As a metal constituting the base, steel and the like are exemplified, and among them, stainless steel can be suitably used. The kind of the stainless steel is not particularly limited, and ferritic stainless steel and / or austenitic stainless steel is preferable. Among these stainless steels, those having excellent heat resistance and / or oxidation resistance are preferred. Examples thereof include SUS430, SUS436, SUS444, SUS316L and the like. These may be used alone or in combination of two or more.

As the metal constituting the base, aluminum, magnesium, copper, and alloys of these metals can be used. These may be used alone or in combination of two or more. Among them, aluminum, magnesium, and their alloys (aluminum alloy, magnesium alloy, Al-Mg alloy, etc.) have a small specific gravity, so that the weight of the heater can be reduced by employing them. Further, since copper and its alloys are excellent in thermal conductivity, they can be used to improve the cracking property of the present heater.

As described above, when a conductive material is used as a material constituting the base, it is preferable to form an insulating layer on the conductive material. The material of the insulating layer is not particularly limited, as long as it can achieve electrical insulation between the conductive material constituting the base and the resistance heat generating wiring. In particular, glass, ceramics, glass ceramics and the like are preferable. Among them, when a metal (stainless steel or the like) is used as a material constituting the base, the material of the insulating layer is preferably glass in view of the balance of thermal expansion, and more preferably, crystallized glass and semi-crystallized glass. Specifically, SiO ₂ -Al ₂ O ₃ -MO based glass is preferable. Here, MO is an oxide of an alkaline earth metal (MgO, CaO, BaO, SrO, or the like). The thickness of the insulating layer is not particularly limited, but is preferably 30 to 200 mu m.

In the case of forming a base body by using ceramics, any material that can achieve electrical insulation with a resistance heat generating wiring provided on a base body at a high temperature may be used. Examples thereof include aluminum oxide, aluminum nitride, zirconia, silica, mullite, spinel, cordierite, silicon nitride and the like. These may be used alone or in combination of two or more. Of these, aluminum oxide and aluminum nitride are preferable. Examples of the composite material of metal and ceramics include SiC / C, SiC / Al, and the like. These may be used alone or in combination of two or more.

As described above, when the object to be heated is heated by sweeping the object to be heated and the heater relatively in the sweeping direction (D ₁ ) with the heating surface of the heater facing the object to be heated, cross-sectional shape of (D _1), the sweep direction (D ₁₎ and an axis perpendicular to the arc of a convex shape toward the face of the object of heating the shape (i.e., a columnar or cylindrical, cut by a plane parallel to the central axis Shape). Each of the resistance heat generating wirings may be disposed on the convex surface or on the opposite surface (concave surface). By adopting such a shape, it is possible to efficiently heat the object to be heated on the roll by attaching the heater to the cylindrical roll and rotating the roll.

(6) Other circuits

The present heater may have other circuits in addition to the resistance heat generating wiring described above. Other circuits include a feed interconnection for supplying an electrode to the resistance heat generating interconnection, and a land for connecting an external interconnection for supplying an electrode to the present heater. These may be one kind alone or two or more kinds.

The resistance heat generating wiring itself may be provided with the power supply wiring portion R (Fig. 15).

(7) Usage

This heater can be used as a fixing heater incorporated in an image forming apparatus such as a printing machine, a copying machine, a facsimile, etc., a fixing device and the like, and fixing toner or ink to the recording medium. Further, it can be used as a heating device built in a heater and uniformly heating (drying, firing, etc.) an object to be processed such as a panel. In addition, the heat treatment of the metal product, the coating film formed on the gas of various shapes, and the heat treatment of the coating film can be appropriately performed. More specifically, the present invention relates to a method for manufacturing a flat panel display, which includes heat treatment of a coating film (filter constituent material), coating and drying of painted metal products, automobile related products, woodworking products, And can be used for printing and drying of a thick film integrated circuit.

(8) About the embodiment

From the above, the present heater can be, for example, the following embodiment. Figs. 8 to 15 according to the following embodiments will be described with reference to Figs. 8 to 15 in which the aspect ratio is changed (the sweeping direction D ₁ is increased and the widthwise direction D ₂ is decreased) Fig.

&Lt; Embodiment 1 >

Fig. 8 is a plan view schematically showing the heater of Embodiment 1. Fig.

The heater according to the first embodiment has a base body 11. The base 11 is in a range from the sweep direction (D ₁₎ ratio (L _D1 / L _D2) of the length L _D2 of length L _D1 and a width direction (D ₂₎ 0.013 0.076, sweep direction (D ₁₎ The length in the width direction D ₂ is longer than the length in the width direction (in the following embodiments, all of the same base bodies). In addition, five resistive heating wires 12 are separately provided on the substrate 11. Each resistance heat generating wiring is formed by baking a paste containing a silver-palladium alloy and has a positive resistance heating coefficient and a difference in resistance temperature coefficient between each resistance heating wiring is within ± 20% In the following embodiments, the same resistance heating arrangement is used).

All of the resistance heat generating wirings 12 are arranged in three rows in the order of the first column, the second column and the third column in the sweeping direction D ₁ and the three columns of the lateral wiring portions X, (Y). All of the lateral wirings X are formed to be longer than the longitudinal wirings Y and all the vertical wirings Y are patterned with inclination with respect to the sweeping direction D ₁ . Then, the transverse wiring portion X is electrically connected by the longitudinally-wavy portion Y and is formed into a serpentine shape.

The five resistance heat generating wirings 12 are arranged in a width direction D ₂ perpendicular to the sweeping direction D ₁ and extending from the left side of FIG. 8 to the first wiring L ₁ , the second wiring L ₂ , line (L _3), the fourth line (L _4), the fifth and the net arranged side by side in a line (L _5), of which the second wire (L ₂₎ and the fourth wires (L ₄₎ of the second column has a transverse wire portion (X ₂₎ the first transverse heat wire unit (X ₁₎ and the third heat pattern is formed longer than the transverse wire unit _{(X 3) (P 2)} . The third wiring L ₃ is formed in a pattern P ₁ in which the second thermal transverse wiring portion X ₂ is formed shorter than the first thermal transverse wiring portion X ₁ and the third thermal transverse wiring portion X ₃ , Lt; / RTI &gt; That is, the heater 1 of the first embodiment has both the pattern P ₁ and the pattern P ₂ as different resistance heating wires at the same time, and the pattern P ₁ and the pattern P ₂ are arranged adjacent to each other .

The end portion Y _{112 of} the first wiring L _{1 is} connected to the first wiring portion X ₁₁ and the second wiring portion X _{12 of} the first wiring L ₁ , The longitudinal end portion Y ₂₁₂ connecting the first column crossing portion X ₂₁ and the second column crossing portion X ₂₂ is opposed to each other with a gap to form the opposed portion A. Similarly, the second line (L2) of the second heat lateral wire unit (X ₂₂₎ and the third heat and jongbae line portion (Y ₂₂₃₎ connecting the transverse wire unit (X _23), the third wires (L ₃₎ The longitudinal wiring portion Y ₃₂₃ connecting the two column lateral wiring portions X ₃₂ and the third column lateral wiring portions X ₃₃ is opposed to each other with a gap to form the opposed portion B. Likewise, the third wire (L ₃₎ of the first heat lateral wire unit (X ₃₁₎ and the second heat and jongbae line portion (Y ₃₁₂₎ connecting the transverse wire unit (X _32), the fourth wires (L ₄₎ the first transverse heat wire unit (X ₄₁₎ and the second heat jongbae line portion (Y ₄₁₂₎ connecting the transverse wire unit (X ₄₂₎ are opposed with a gap to form a facing portion (C).

The sweep path T _B of the gap of the opposed portion B is located between the sweep trajectory T A of the gap of the opposed portion _A and the sweep trajectory T _C of the gap of the opposed portion C, Is located biased toward the sweep trajectory T _A of the clearance of the air bag _A. That is, when the gap distance between the sweep trajectory T _A and the sweep trajectory T _B is W _AB and the gap distance between the sweep trajectory T _B and the sweep trajectory T _C is W _BC , W _AB <W _BC .

As described above, the heater according to the first embodiment has the five resistance heat generating wirings 12 separately supplied with power, and the resistance heating wirings of the respective resistance heating wirings are shared with each other in the sweeping direction D ₁ , The resistive heating wiring pattern can be formed as a whole while preventing the opposing portions of the resistance heating wiring lines from dispersing so as not to overlap each other in the width direction D ₂ and preventing the regular resistance portions D ₁ from appearing regularly. As a result, even if the heater has a narrow width with only three horizontal wiring sections X in the sweeping direction D ₁ , it is possible to make the heater excellent in the cracking property by normally functioning as the self-temperature balancing.

Naturally, the pattern shown in Fig. 8 can be formed as a left-right mirror-inverted pattern, and the same effect can be obtained. The same applies to the other embodiments described below.

8, all the longitudinal end portions Y are inclined in the same direction at the same angle, but they may be independently different from each other, or may be inclined in different directions independently of one another. Furthermore, the inclined end portion Y may be mixed with the end portion Y not inclined (parallel to the sweeping direction D ₁ ). The same applies to the other embodiments described below.

&Lt; Embodiment 2 >

Fig. 9 is a plan view schematically showing the heater of the second embodiment.

The heater of Embodiment 1 includes a substrate 11 and five resistive heat generating wirings 12 separately supplied to the substrate 11. All of the resistance heat generating wires 12 are arranged in three rows in the order of the first column, the second column and the third column in the sweeping direction D ₁ and the longitudinal wirings X connecting the lateral wirings Y). All of the lateral wirings X are formed longer than the longitudinal wirings Y and all the vertical wirings Y are patterned with inclination with respect to the sweeping direction D ₁ . Then, the transverse wiring portion X is electrically connected by the longitudinally-wavy portion Y and is formed into a serpentine shape.

The five resistance heat generating wirings 12 are arranged in the width direction D ₂ perpendicular to the sweeping direction D ₁ from the left side of FIG. 9, and the first wiring (L ₁ ), the second wiring (L ₂ ) line (L _3), the fourth line (L _4), the fifth and the net arranged side by side in a line (L _5), of which the first wiring (L ₁₎ and the fifth wire (L ₅₎ is a second column has a transverse wire portion (X ₂₎ the first transverse heat wire unit (X ₁₎ and the third column the pattern (P ₁₎ is formed to be shorter than the transverse wire unit (X _3). Further, the third wires (L ₃₎ is a second row transverse wire portion (X ₂₎ of the first heat lateral wire unit (X ₁₎ and the third heat and hold patterned than the transverse wire unit (X ₃₎ (P ₂₎ Lt; / RTI &gt; That is, the heater 1 of the second embodiment has both the pattern P ₁ and the pattern P ₂ as different resistance heating wires at the same time. However, the pattern P ₁ and the pattern P ₂ are not arranged adjacent to each other.

The sweep trajectory T _B has an opposite portion A, an opposite portion B and an opposite portion C in the same manner as in the heater of Embodiment 1 (FIG. 8), and the sweep trajectory T _B is a distance between the sweep trajectory T _A and the sweep trajectory T _C And is biased to the side of the sweep trajectory T _A. That is, when the gap distance between the sweep trajectory T _A and the sweep trajectory T _B is W _AB and the gap distance between the sweep trajectory T _B and the sweep trajectory T _C is W _BC , W _AB <W _BC .

As described above, the heater according to the second embodiment has the five resistance heat generating wirings 12 separately supplied with power, and the resistance heating wirings are shared by the resistance heating wirings in the sweeping direction D ₁ , The resistive heating wiring pattern can be formed as a whole while preventing the opposing portions of the resistance heating wiring lines from dispersing so as not to overlap each other in the width direction D ₂ and preventing the regular resistance portions D ₁ from appearing regularly. As a result, even if the heater has a narrow width with only three horizontal wiring sections X in the sweeping direction D ₁ , it is possible to make the heater excellent in the cracking property by normally functioning as the self-temperature balancing.

&Lt; Embodiment 3 >

Fig. 10 is a plan view schematically showing the heater of the third embodiment.

The heater of Embodiment 3 includes a substrate 11 and five resistive heat generating wirings 12 which are separately supplied on the substrate 11. All of the resistance heat generating wires 12 are arranged in three rows in the order of the first column, the second column and the third column in the sweeping direction D ₁ and the longitudinal wirings X connecting the lateral wirings Y). All of the lateral wirings X are formed longer than the longitudinal wirings Y and all the vertical wirings Y are patterned with inclination with respect to the sweeping direction D ₁ . Then, the transverse wiring portion X is electrically connected by the longitudinally-wavy portion Y and is formed into a serpentine shape.

The five resistance heat generating wirings 12 are arranged in the width direction D ₂ perpendicular to the sweeping direction D ₁ and extending from the left side in FIG. 10 to the first wiring L ₁ , the second wiring L ₂ , The second wirings L ₂ and the fourth wirings L ₄ are arranged in the order of the wiring L ₃ , the fourth wiring L ₄ and the fifth wiring L ₅ , column has a transverse wire portion (X ₂₎ the first transverse heat wire unit (X ₁₎ and the third column the pattern (P ₁₎ is formed to be shorter than the transverse wire unit (X _3). Further, the third wires (L ₃₎ is a second row transverse wire portion (X ₂₎ of the first heat lateral wire unit (X ₁₎ and the third heat and hold patterned than the transverse wire unit (X ₃₎ (P ₂₎ Lt; / RTI &gt; That is, the heater 1 of the third embodiment has both the pattern P ₁ and the pattern P ₂ as different resistance heating wires at the same time, and the pattern P ₁ and the pattern P ₂ are arranged adjacent to each other .

Further, the first embodiment as with the heater (8) and carrying out a heater of Embodiment 2 (Fig. 9), opposed portions (A), the opposing portions (B), has an opposing portion (C), sweep trajectory T _B, Is located between the sweep trajectory T _A and the sweep trajectory T _C , and is biased toward the sweep trajectory T _A. That is, when the gap distance between the sweep trajectory T _A and the sweep trajectory T _B is W _AB and the gap distance between the sweep trajectory T _B and the sweep trajectory T _C is W _BC , W _AB <W _BC .

As described above, the heater of Embodiment 3 includes the five resistance heat generating wirings 12 separately supplied with power, and the heating regions in the sweeping direction D ₁ are shared by the respective resistance heat generating wirings, and furthermore, The resistive heating wiring pattern can be formed as a whole while preventing the opposing portions of the resistance heating wiring lines from dispersing so as not to overlap each other in the width direction D ₂ and preventing the regular resistance portions D ₁ from appearing regularly. As a result, even if the heater has a narrow width with only three horizontal wiring sections X in the sweeping direction D ₁ , it is possible to make the heater excellent in the cracking property by normally functioning as the self-temperature balancing.

In Embodiment 1, Embodiment 2 and Embodiment 3 described above, Embodiment 1 and Embodiment 2 are preferable from Embodiment 3 in view of cracking. This is because the second wiring (L ₂ ), the third wiring (L ₃ ), and the fourth wiring (L ₄ ) included in the heater of the first embodiment (FIG. 8) and the heater of the second embodiment The overlapped region of the trailing locus of the lateral wiring portions X is smaller than the area of the second wiring (L ₂ ), the third wiring (L ₃ ) and the fourth wiring (L ₄ ) included in the heater of Mode 3 It is because of size.

That is, the second wiring (L ₂ ) of the heater according to the third embodiment has the sweep trajectory of the first thermal transverse wiring portion X ₂₁ , the sweep locus of the second thermal transverse wiring portion X ₂₂ , The length K in which the sweep traces of the transverse wiring portion X ₂₃ are all overlapped is smaller than the length K of the first transverse interconnection portion X ₂₁ , the second heat transverse interconnection portion X ₂₂ , and the third heat transverse interconnection portion X ₂₃ ) is 11.8%. Further, the third wires (L ₃₎ of the heater in accordance with Embodiment 3, the first heat lateral wire unit (X ₃₁₎ sweep trajectory, and a second open transverse wire unit (X ₃₂₎ sweep trajectory and the third row of There is no length K in which the sweep traces of the lateral wiring portion X ₃₃ are all overlapped. The fourth wiring L ₄ of the heater of the third embodiment has a sweep locus of the first thermal interconnection line X ₄₁ and a sweep locus of the second thermal interconnection line X ₄₂ , The length K in which the sweep traces of the transverse wiring portion X ₄₃ are all overlapped is smaller than the length K of the first transverse wiring portion X ₄₁ , the second thermal transverse wiring portion X ₄₂ , and the third thermal transverse wiring portion X ₄₃ ) is 11.8%.

On the other hand, the second wiring (L ₂ ) of the heater of the first embodiment has the sweep trajectory of the first thermal transverse wiring portion (X ₂₁ ), the sweep trajectory of the second thermal transverse wiring portion (X ₂₂ ) The length K in which the sweep traces of the thermal transverse wiring X ₂₃ are all overlapped is smaller than the length K of the first thermal transverse interconnection X ₂₁ , the second thermal transverse interconnection X ₂₂ , X ₂₃ ). The third wiring (L ₃ ) of the heater of the first embodiment has the sweep trajectory of the first thermal transverse wiring portion X ₃₁ , the sweep trajectory of the second thermal transverse wiring portion X ₃₂ , The length K in which the sweep traces of the lateral wiring portion X ₃₃ are all overlapped is smaller than the length K of the first row lateral wiring portion X ₃₁ , the second column lateral wiring portion X ₃₂ and the third column lateral wiring portion X ₃₃ ) is 16.6%. The fourth wiring (L ₄ ) of the heater of the first embodiment has a sweep locus of the first thermal transverse wiring portion X ₄₁ , a sweep trajectory of the second thermal transverse wiring portion X ₄₂ , The length K in which the sweep traces of the transverse wiring portion X ₄₃ are all overlapped is smaller than the length K of the first transverse wiring portion X ₄₁ , the second thermal transverse wiring portion X ₄₂ , and the third thermal transverse wiring portion X ₄₃ ) is 24.3%.

The second wiring (L ₂ ) of the heater of the second embodiment has the sweep trajectory of the first thermal transverse wiring portion X ₂₁ , the sweep trajectory of the second thermal transverse wiring portion X ₂₂ , The length K in which the sweep traces of the transverse wiring portion X ₂₃ are all overlapped is smaller than the length K of the first transverse interconnection portion X ₂₁ , the second heat transverse interconnection portion X ₂₂ , and the third heat transverse interconnection portion X ₂₃ ) is 20.5%. The third wiring L ₃ of the heater according to the second embodiment has the sweep trajectory of the first thermal interconnection line X ₃₁ and the sweep trajectory of the second thermal interconnection line X ₃₂ , The length K in which the sweep traces of the wiring portion X ₃₃ are all overlapped is smaller than the length K of the first thermal transverse wiring portion X ₃₁ , the second thermal transverse wiring portion X ₃₂ and the third thermal transverse wiring portion X ₃₃ ) Is 16.6%. Further, the fourth wires (L ₄₎ of the heater in accordance with Embodiment 2, the first heat lateral wire unit (X ₄₁₎ sweep trajectory, and a second heat sweep trajectory and the third column in the horizontal wiring portion (X ₄₂₎ of the The length K in which the sweep traces of the transverse wiring portion X ₄₃ are all overlapped is smaller than the length K of the first transverse wiring portion X ₄₁ , the second thermal transverse wiring portion X ₄₂ , and the third thermal transverse wiring portion X ₄₃ ) is 20.5%.

As described above, the overlapping of the trailing locus of the second wiring (L ₂ ), the third wiring (L ₃ ) and the fourth wiring (L ₄ ) of each heater in Embodiments 1 to ₃ is compared As compared with Embodiment 3, Embodiment 1 and Embodiment 2 are enlarged. As a result, the region where the resistance heat generating wires of the second wiring (L ₂ ), the third wiring (L ₃ ) and the fourth wiring (L ₄ ) exist is made compact, Because.

On the other hand, the third wiring (L ₃ ) of the heater of the third embodiment has two traces of the trailing locus of the first thermal transverse wiring portion X ₃₁ and the trajectory of the second thermal transverse wiring portion X ₃₂ And the trajectory is formed so as to overlap at the same time. In addition, the sweep trajectory of the second row cross wiring portion X ₃₂ and the sweep trajectory of the third column cross wiring portion X _{33 are} formed so as to simultaneously overlap with each other. However, there are three scribe traces of the sweep locus of the first row crosswise wiring portion X ₃₁ , the sweep locus of the second row crosswise wiring portion X ₃₂ , and the sweep trajectory of the third row crosswise wiring portion X ₃₃ At the same time.

As described above, by forming the resistive heat-generating wiring so as to have a small amount of sweep trajectory, it is difficult to compactly integrate the region where the resistance heat-generating wiring exists, as compared with the resistance heat generating wiring having the shape in which the sweep trajectory overlap amount is large. However, in the heater of Embodiment 3, the third wire (L ₃₎ the can be by a small amount of duplication of the sweep trajectory shape, increasing the third wire (L ₃₎ the other two degrees of freedom of the two wire-like adjacent to, the It has been succeeded in increasing the overlap amount of the sweep traces in the second wiring (L ₂ ) and the fourth wiring (L ₄ ). That is, in order to increase the degree of freedom of the adjacent two different wiring shapes, it is possible to positively reduce the amount of overlap of the sweep traces of one resistance heat generating wiring.

&Lt; Fourth Embodiment >

Fig. 11 is a plan view schematically showing the heater of the fourth embodiment.

The heater of Embodiment 4 includes a substrate 11 and six resistance heat generating wirings 12 that are separately supplied on the substrate 11. All of these resistance heat generating wirings 12 are formed by three rows of lateral wirings X arranged in the order of the first row, the second row and the third row in the sweeping direction D ₁ , (Y). All of the lateral wirings X are formed to be longer than the longitudinal wirings Y and all the vertical wirings Y are patterned while being inclined with respect to the sweeping direction D ₁ . Then, the transverse wiring portion X is electrically connected by the longitudinally-wavy portion Y and is formed into a serpentine shape.

The six resistance heat generating wiring lines 12 are arranged in the width direction D ₂ perpendicular to the sweeping direction D ₁ and extending from the left side in FIG. 11 to the first wiring line L ₁ , the second wiring line L ₂ , The third wirings L ₃ and the fourth wirings L ₄ and the fifth wirings L ₅ and the sixth wirings L ₆ are arranged in this order and the second wirings L ₂ and fifth The wiring L ₅ has a pattern P ₁ in which the second thermal transverse wiring portion X ₂ is formed shorter than the first thermal transverse wiring portion X ₁ and the third thermal transverse wiring portion X ₃ . Further, the third wires (L ₃₎ is a second row transverse wire portion (X ₂₎ of the first heat lateral wire unit (X ₁₎ and the third heat and hold patterned than the transverse wire unit (X ₃₎ (P ₂₎ Lt; / RTI &gt; That is, the heater 1 of the fourth embodiment has both the pattern P ₁ and the pattern P ₂ as different resistance heating wires at the same time. The second wiring (L ₂ ) having the pattern (P ₁ ) and the third wiring (L ₃ ) having the pattern (P ₂ ) are arranged adjacent to each other.

As in the case of the heaters according to the first to third embodiments, the first wiring (L ₁ ) and the second wiring (L ₂ ) have opposing portions A as opposing parts and the second wiring (L ₂ ) has opposing portions (B) as the opposite portions of the (L _3), it has a first opposing portion (C) as the opposite portions of the third wire ₍₃ L) and the fourth wire ₍₄ L). The sweep trajectory T _B is located between the sweep trajectory T _A and the sweep trajectory T _C and is biased toward the sweep trajectory T _A. That is, the sweep trajectory T of the gap distance _A and gap distance of the sweep trajectory T W _B and _AB, sweep trajectory T _B and T _C W _BC sweep trajectory is a W _AB <W _BC.

The heater of the fourth embodiment has an opposing portion A 'as an opposed portion between the third wiring L ₃ and the fourth wiring L ₄ and the fourth wiring L ₄ and the fifth wiring L ₅₎ has a having a) 'opposite points (C as opposed portions of) a has, the fifth wire (L ₅₎ and a sixth wiring (L _6), the opposing portions (B as opposed places (the third wire (L ₃ can be replaced with the first wiring, the fourth wiring L ₄ with the second wiring, the fifth wiring L ₅ with the third wiring, and the sixth wiring L ₆ with the fourth wiring. Then, the sweep trajectory T _{B '} is located between the sweep trajectory T _{A '} and the sweep trajectory T _{C '} and is biased toward the sweep trajectory T _{C '} . That is, the sweep trajectory T of the gap distance _A and gap distance of the sweep trajectory T W _B and _AB, sweep trajectory T _B and T _C W _BC sweep trajectory is a W _AB> W _BC.

As described above, in the heater according to the fourth embodiment, two sets of opposing portions (A) to (C) are provided in one heater, and at any of the opposing portions (A) to T _B is shifted toward one of the sweep trajectory T _A or the sweep trajectory T _{C so} that the opposing portions are dispersed so as not to overlap in the width direction D ₂ and prevented from appearing regularly in the sweep direction D ₁ , And has a tight resistance heat generating wiring pattern. As a result, even a heater having a narrow width in which only three transverse wiring sections X are provided in the sweeping direction D ₁ can function as a self-temperature balancer normally and can provide a heater excellent in cracking properties.

&Lt; Embodiment 5 >

Fig. 12 is a plan view schematically showing the heater of Embodiment 5. Fig.

The heater of Embodiment 5 includes a substrate 11 and five resistance heating wires 12 separately supplied to the substrate 11. All of the resistance heat generating wires 12 are arranged in four rows in the order of the first row, the second row, the third column and the fourth column in the sweeping direction D ₁ and the horizontal wiring portions X, (Y). All of the lateral wirings X are formed longer than the longitudinal wirings Y and all the vertical wirings Y are patterned with inclination with respect to the sweeping direction D ₁ . Then, the transverse wiring portion X is electrically connected by the longitudinally-wavy portion Y and is formed into a serpentine shape.

The five resistance heat generating wirings 12 are arranged in the width direction D ₂ perpendicular to the sweeping direction D ₁ from the left side of FIG. 12, and the first wiring L ₁ , the second wiring L ₂ , line (L _3), the fourth line (L _4), the fifth and the net arranged side by side in a line (L _5), of which the second wire (L _2), the third wires (L ₃₎ and a fourth wiring (L ₄₎ is provided with a pattern on both sides of the pattern (P ₁₎ and the pattern (P ₂₎ in one resistance heating wire (12).

That is, the second line (L ₂₎ of the second heat lateral wire unit (X ₂₂₎ of the first heat lateral wire unit (X ₂₁₎ and the third heat short patterned than the transverse wire unit (X ₂₃₎ (P ₁₎ And the third thermal transverse wiring portion X ₂₃ has a pattern P ₂ formed longer than the second thermal transverse wiring portion X ₂₂ and the fourth thermal transverse wiring portion X ₂₄ . Similarly, the third wire (L ₃₎ is a second row transverse wire unit (X ₃₂₎ of the first heat lateral wire unit (X ₃₁₎ and the third column is formed longer than the transverse wire unit (X ₃₃₎ the pattern (P ₂₎ And the third thermal transverse wiring portion X ₃₃ has a pattern P ₁ formed shorter than the second thermal transverse wiring portion X ₃₂ and the fourth thermal transverse wiring portion X ₃₄ . The fourth wiring (L ₄ ) has the same shape as the second wiring (L ₂ ).

That is, in the heater 1 according to the fifth embodiment, since one resistance heating wire is provided for both the pattern P ₁ and the pattern P ₂ and these resistance heating wires are disposed adjacent to each other, ₁ ) and the pattern P ₂ are disposed adjacent to each other.

The heater according to the fifth embodiment has the opposite portion A as an opposed portion between the first wiring L ₁ and the second wiring L ₂ and has the second wiring L ₂₎ and having a facing portion (B) as the opposite portions of the third wire (L _3), the has a facing portion (C) as the opposite portions of the third wire (L ₃₎ and the fourth wires (L ₄₎ . The sweep trajectory T _B is located between the sweep trajectory T _A and the sweep trajectory T _C and is biased toward the sweep trajectory T _A. That is, the sweep trajectory T of the gap distance _A and gap distance of the sweep trajectory T W _B and _AB, sweep trajectory T _B and T _C W _BC sweep trajectory is a W _AB <W _BC.

13, the five resistance heating wires 12 are arranged in the width direction D ₂ from the left side in FIG. 13, and the S-th wire (L _S ) and the T-th wire ( L _T ) (the Tth wiring is also the first wiring L _{1 for the} opposed portions A to C), the second wiring L ₂ , the third wiring L ₃ , When replacement as in the order of side-by-side with the wire (L _4), a first wiring (L ₁₎ and has an opposing portion (a) as the opposite portions of the second wiring (L _2), the second wires (L ₂₎ and a has a facing portion (B) facing a portion of the third wire ₍₃ L), it has a first opposing portion (C) as the opposite portions of the third wire ₍₃ L) and the fourth wire ₍₄ L). The sweep trajectory T _B is located between the sweep trajectory T _A and the sweep trajectory T _C and is biased toward the sweep trajectory T _A. That is, the sweep trajectory T of the gap distance _A and gap distance of the sweep trajectory T W _B and _AB, sweep trajectory T _B and T _C W _BC sweep trajectory is a W _AB <W _BC.

As described above, the heater according to the fifth embodiment is provided with the set of the opposed portions (A) to (C) shown in FIG. 12 and the set of the opposed portions (A) to (C) The sweep trajectory T _B is biased to the sweep trajectory T _A side so that the opposed points are overlapped in the width direction D ₂ , So that it is prevented from appearing regularly in the sweeping direction D ₁ , and is formed as a resistive heat generating wiring pattern as a whole.

Further, in Embodiment 5 the heater, as shown in Figure 12, the first wiring (L ₁₎ of the first heat lateral wire unit (X ₁₁₎ and the second heat jongbae connecting the transverse wire unit (X ₁₂₎ grounding line (Y _112), a first wiring first heat lateral wire unit (X ₂₁₎ and the second heat jongbae line portion connecting the lateral wire unit (X ₂₂₎ of the (L ₁₎ a second wire (L ₂₎ adjacent to the (Y ₂₁₂ ) are opposed to each other with a gap to form the opposed portion (D). Further, the first wiring third row transverse wire unit (X ₁₃₎ and the fourth heat and jongbae line portion (Y ₁₃₄₎ connecting the transverse wire unit (X _14), the second wires (L ₂₎ of the (L ₁₎ The longitudinal end portion Y ₂₃₄ connecting the third row lateral wiring portion X ₂₃ and the fourth column lateral wiring portion X ₂₄ is opposed to each other with a gap to form the opposing portion E. The sweep trajectory T _D of the gap of the opposed portion D and the sweep trajectory T _E of the gap of the opposed portion E are spaced apart in the width direction so as not to overlap with each other. That is, a gap distance W _DE is formed between the sweep trajectory (T _D ) and the sweep trajectory (T _E ), and W _DE > 0 μm.

Likewise, the heater of Embodiment 5 is formed by connecting the first row interconnecting line X ₃₁ and the second row interconnecting line X _{32 of} the third interconnect L ₃ , grounding line (Y _312), and a third wiring (L ₃₎ the fourth wires (L ₄₎ first heat lateral wire unit (X ₄₁₎ and the second heat jongbae line portion connecting the lateral wire unit (X ₄₂₎ of the adjacent (Y ₄₁₂ ) are opposed to each other with a gap to form an opposed portion D '. The end portion Y _{334 of} the third wiring L _{3 connecting} the third and fourth lateral wiring portions X ₃₃ and X ₃₄ and the end portion Y _{334 of} the fourth wiring L ₄ The longitudinal end portion Y ₄₃₄ connecting the third and fourth vertical wiring portions X ₄₃ and X ₄₄ is opposed to each other with a gap to form the opposed portion E '. The sweep trajectory T _{D '} of the gap of the opposed portion D' and the sweep trajectory T _{E '} of the gap between the opposed portions E' are spaced apart in the width direction so as not to overlap with each other. That is, between the sweep trajectory T _{D '} and the sweep trajectory T _{E '} , the gap distance W _{D ' E '} is formed, and W _{D ' E '} > 0 μm.

As described above, in the heater according to the fifth embodiment, two sets of opposing portions D and E are provided in one heater. In these opposing portions D and E, the sweep trajectory T _D And the sweep trajectory T _E are dispersed so as not to overlap each other in the width direction D ₂ , thereby forming a resistance heat generating wiring pattern as a whole.

That is, the heater of Embodiment 5 has five resistance heat generating wirings 12 that are separately supplied with power, and the heating regions in the sweeping direction D ₁ are shared among the resistance heat generating wirings 12, and furthermore, Can be dispersed so as not to overlap each other in the width direction D ₂ , and can be prevented from appearing regularly in the sweeping direction D ₁ , and a resistance heat generating wiring pattern can be formed as a whole. As a result, even when the heater has a narrow width with only four horizontal wiring sections X in the sweeping direction D ₁ , it is possible to make the heater excellent in the cracking property by normally functioning as a self-temperature balance.

12 (formed by the longitudinal wiring Y ₁₁₂ and the longitudinal wiring Y ₂₁₂ ) and E (formed by the longitudinal wiring Y ₁₃₄ and the longitudinal wiring Y ₂₃₄ ) shown in Fig. 12 of the heater in Embodiment 5, (Formed by the longitudinal wiring Y _S12 and the longitudinal wiring Y _S12 ) and E (the longitudinal wiring Y _S12 and the longitudinal wiring Y _S12 ) of the heater of Embodiment 5 shown in Fig. 13 Formation). That is, corresponding to the second line (L ₂₎ in Fig. 13 of the S line (L _S) a first wiring (L ₁₎ corresponding to FIG. 13 the T is 12 lines (L _T) of the of the 12 .

&Lt; Embodiment 6 >

Fig. 14 is a plan view schematically showing the heater of the sixth embodiment.

The heater of Embodiment 6 includes a substrate 11 and six resistive heat generating wirings 12 which are separately supplied on the substrate 11. All of the resistance heat generating wires 12 are arranged in four rows in the order of the first row, the second row, the third column and the fourth column in the sweeping direction D ₁ and the horizontal wiring portions X, (Y). All of the lateral wirings X are formed longer than the longitudinal wirings Y and all the vertical wirings Y are patterned with inclination with respect to the sweeping direction D ₁ . Then, the transverse wiring portion X is electrically connected by the longitudinally-wavy portion Y and is formed into a serpentine shape.

The six resistance heat generating wirings 12 are arranged in the width direction D ₂ perpendicular to the sweeping direction D ₁ from the left side in Fig. 14, the S th wiring (L _S ), the T th wiring (L _T ) first wiring (L _1), second wiring (L _2), the third wires (L _3), the fourth and the net arranged side by side in a line (L _4), of which, the T line (L _T), a first The wiring L ₁ , the second wiring L ₂ and the third wiring L ₃ are provided with a pattern of both the pattern P ₁ and the pattern P _{2 in} one resistance heating wiring 12 (The same as that described in the fifth embodiment).

That is, the heater 1 according to the sixth embodiment has a structure in which both the pattern P ₁ and the pattern P _{2 are} formed by one resistance heat generating wiring at the same time, and the resistance heat generating wiring (the T th wiring L _T , the first wiring L ₁ , the second wiring L _2, and the third wiring L ₃ ) are disposed adjacent to each other, the pattern P ₁ and the pattern P ₂ are disposed adjacent to each other.

The heater according to the sixth embodiment has the opposite portion A as an opposed portion between the first wiring L ₁ and the second wiring L ₂ and has the second wiring L2 as an opposing portion of the third wiring L3 and an opposing portion C as an opposing portion between the third wiring L3 and the fourth wiring L4. The sweep trajectory T _B is located between the sweep trajectory T _A and the sweep trajectory T _C and is biased toward the sweep trajectory T _A. That is, the sweep trajectory T of the gap distance _A and gap distance of the sweep trajectory T W _B and _AB, sweep trajectory T _B and T _C W _BC sweep trajectory is a W _AB <W _BC.

Further, although not shown, because troublesome, the S line (L _S) and the T line as opposed portions of the (L _T) has an opposing portion (A), the T line (L _T) and a first wiring (L ₁ as an opposed portion and has an opposed portion C as an opposed portion between the first wiring L ₁ and the second wiring L ₂ . The sweep trajectory T _B is located between the sweep trajectory T _A and the sweep trajectory T _C, and is biased toward the sweep trajectory T _A (W _AB <W _BC ). In addition, the T counter positions as opposite portions of the wire (L _T) and a first wiring (L ₁₎ the counter has a portion (A), a first wiring (L ₁₎ and the second wire (L ₂₎ as opposed to portions of the (B), and an opposing portion (C) as an opposed portion between the second wiring (L ₂ ) and the third wiring (L ₃ ). The sweep trajectory T _B is located between the sweep trajectory T _A and the sweep trajectory T _C, and is biased toward the sweep trajectory T _A (W _AB <W _BC ).

As described above, in the heater of the sixth embodiment, three sets of opposing portions (A) to (C) are provided in one heater, and at any of the opposing portions (A) to T _B are shifted toward the sweep trajectory T _A side so that the opposing portions are dispersed so as not to overlap in the width direction D ₂ and are prevented from appearing regularly in the sweeping direction D ₁ while being formed as a resistance heating wiring pattern as a whole.

14, the heater according to the sixth embodiment is formed by connecting the first row interconnect X _S1 and the second interconnect X _{S2 S2 of the S} th line L _s , grounding line (Y _S12), and the S line first row transverse wire unit (X _T1) and the second heat jongbae line portion connecting the lateral wire unit (X _T2) of (L _S) the T line (L _T) adjacent to the (Y _T12 ) are opposed to each other with a gap to form the opposed portion (D). Further, in the S line third row transverse wire unit (X _S3) and the fourth column jongbae line portion (Y _S34), and the T line (L _T) for connecting the transverse wire unit (X _S4) of the (L _S) The longitudinal end portion Y _T34 connecting the third row lateral wiring portion X _T3 and the fourth column lateral wiring portion X _T4 is opposed to each other with a gap to form the opposing portion E. The sweep trajectory T _D of the gap of the opposed portion D and the sweep trajectory T _E of the gap of the opposed portion E are spaced apart in the width direction so as not to overlap with each other. That is, a gap distance W _DE is formed between the sweep trajectory (T _D ) and the sweep trajectory (T _E ), and W _DE > 0 μm.

Although not shown in the figure because it is troublesome, the solid line portion Y ₁₁₂ connecting the first row transverse wiring portion X ₁₁ and the second thermal transverse wiring portion X _{12 of} the first wiring L ₁ , claim for the first row transverse wire unit (X ₂₁₎ and the second heat jongbae line portion (Y ₂₁₂₎ connecting the transverse wire unit (X ₂₂₎ the gap of the second wiring (L ₂₎ adjacent to the first wiring (L ₁₎ So that the opposed portion D is formed. Further, the first wiring third row transverse wire unit (X ₁₃₎ and the fourth heat and jongbae line portion (Y ₁₃₄₎ connecting the transverse wire unit (X _14), the second wires (L ₂₎ of the (L ₁₎ The longitudinal end portion Y ₂₃₄ connecting the third row lateral wiring portion X ₂₃ and the fourth column lateral wiring portion X ₂₄ is opposed to each other with a gap to form the opposing portion E. The sweep trajectory T _D of the gap of the opposed portion D and the sweep trajectory T _E of the gap of the opposed portion E are spaced apart in the width direction so as not to overlap with each other. That is, a gap distance W _DE is formed between the sweep trajectory (T _D ) and the sweep trajectory (T _E ), and W _DE > 0 μm.

Similarly, the second to the first open transverse wire unit (X ₃₁₎ and the second heat jongbae line portion (Y _312), and a third wiring (L ₃₎ for connecting the cross wire unit (X ₃₂₎ of the third wire (L ₃₎ adjacent the fourth first row transverse wire unit (X ₄₁₎ and the second column is the opposite with the the jongbae line portion (Y ₄₁₂₎ connecting the transverse wire unit (X ₄₂₎ the gap facing portion (D) of the wire (L ₄₎ . The end portion Y _{334 of} the third wiring L _{3 connecting} the third and fourth lateral wiring portions X ₃₃ and X ₃₄ and the end portion Y _{334 of} the fourth wiring L ₄ The longitudinal end portions Y ₄₃₄ connecting the third and fourth vertical wiring portions X ₄₃ and X ₄₄ are opposed to each other with a gap to form the opposing portion E. The sweep trajectory T _D of the gap of the opposed portion D and the sweep trajectory T _E of the gap of the opposed portion E are spaced apart in the width direction so as not to overlap with each other. That is, a gap distance W _DE is formed between the sweep trajectory (T _D ) and the sweep trajectory (T _E ), and W _DE > 0 μm.

As described above, the heater according to the sixth embodiment is provided with three sets of the opposing portions D and E in one heater. In these heaters D and E, the sweep trajectory T _D And the sweep trajectory T _E are dispersed so as not to overlap each other in the width direction D ₂ , thereby forming a resistance heat generating wiring pattern as a whole.

In other words, the heater of the sixth embodiment has six resistance heat generating wirings 12 that are separately supplied with power, and the heating regions in the sweeping direction D ₁ are shared among the resistance heat generating wirings 12, and furthermore, Can be dispersed so as not to overlap each other in the width direction D ₂ , and can be prevented from appearing regularly in the sweeping direction D ₁ , and a resistance heat generating wiring pattern can be formed as a whole. As a result, even when the heater has a narrow width with only four horizontal wiring sections X in the sweeping direction D ₁ , it is possible to make the heater excellent in the cracking property by normally functioning as a self-temperature balance.

&Lt; Embodiment 7 >

Fig. 15 is a plan view schematically showing the heater of Embodiment 7. Fig.

The heater according to the seventh embodiment is a configuration in which the resistance heating wire 12 has the feed wire portion R in the heater according to the first embodiment. As shown in Fig. 15, the feed interconnection portion R can be patterned parallel to the sweeping direction D ₁ and can be extended to the edge of the substrate 11. In the case of such a power supply wiring portion R, the power supply wiring portion R may be patterned in parallel with the sweeping direction D ₁ as described above, or may be inclined in the same manner as the longitudinal wiring portion Y.

[2] fixing devices

The fixing device having the heater can be appropriately selected by a heating object, a fixing means, or the like. For example, in a case where toner or the like is fixed to a recording medium such as paper by providing a fixing means accompanied by pressing, or when a plurality of members are bonded, a heating portion having a heater and a pressing portion A fixing device can be used. Of course, it may be a fixing means not involving pressing. In the present invention, it is preferable that the fixing device 5 fixes an unfixed image including toner formed on the surface of a recording medium such as paper or film to a recording medium.

16 shows the main part of the fixing device 5 that is disposed in the electrophotographic image forming apparatus. The fixing device 5 includes a rotatable fixing roll 51 and a rotatable pressing roll 54. The heater 1 is disposed inside the fixing roll 51. [ The heater 1 is preferably arranged so as to be close to the inner surface of the fixing roll 51.

The heater 1 is fixed inside the heater holder 53 including a material capable of conducting heat generated by the heater 1 such as the fixing means 5 shown in Fig. 18, for example, and the heater 1 May be transferred from the inner side of the fixing roll 51 to the outer surface thereof.

Fig. 17 also shows the main part of the fixing device 5 that is disposed in the electrophotographic image forming apparatus. The fixing device 5 includes a rotatable fixing roll 51 and a rotatable pressing roll 54. The fixing device 5 includes a heater 1 and a pressing roll 54 for transmitting heat to the fixing roll 51, And a fixing pad 52 for pressing the recording medium together are disposed inside the fixing roll 51. The heater 1 is disposed along the cylindrical surface of the fixing roll 51.

In the fixing device 5 shown in Fig. 16 or Fig. 17, the heater 1 is heated by applying a voltage from a power supply (not shown), and the heat is transferred to the fixing roll 51. [ When a recording medium having an unfixed toner image on its surface is fed between the fixing roll 51 and the pressing roll 54, the fixing roll 51 and the pressure roll 54 The toner is melted and a fixed image is formed. And has a pressure-contacting portion between the fixing roll 51 and the pressing roll 54, and thus rotates together. As described above, since the local temperature rise, which is likely to occur when a small recording medium is used, is suppressed, the temperature variation in the fixing roll 51 hardly occurs and the fixing can be performed uniformly have.

As another mode of the fixing device including the present heater 1, a mold having upper and lower molds can be used in which a heater is disposed inside at least one of the upper mold and the lower mold.

The fixing device provided with the heater 1 is suitable for use as an image forming device such as an electrophotographic printing machine or a copying machine, as a heat source for heating, keeping warm, etc. in a home electric appliance, a business use, Do.

[3] Image forming apparatus

The image forming apparatus having the heater can be appropriately selected depending on the object to be heated or the object to be heated. In the present invention, as shown in Fig. 18, there are provided a forming means for forming an unfixed image on the surface of a recording medium such as paper or film, a fixing means for fixing the unfixed image to the recording medium (5), and the fixing means (5) is an image forming apparatus (4) having the heater (1). The image forming apparatus 4 may include recording medium conveying means and control means for controlling the respective means in addition to the above means.

Fig. 18 is a schematic view showing the main part of the electrophotographic image forming apparatus 4. Fig. As the forming means, any of a method of providing a transfer drum and a method of not having a transfer drum may be used, but Fig. 18 is a form having a transfer drum.

The laser output from the laser scanner 41 is irradiated onto the charging surface of the photosensitive drum 44 charged with a predetermined potential by the charging device 43 while rotating, An electrostatic latent image is formed by the supplied toner. Subsequently, the toner image is transferred to the surface of the transfer drum 46 interlocked with the photosensitive drum 44 by using the potential difference. Thereafter, the toner image is transferred to the surface of the recording medium supplied between the transfer drum 46 and the transfer roll 47, and a recording medium having an unfixed image is obtained. 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 ° C to 250 ° C. Further, on the surface of the photosensitive drum 44 and the transfer drum 46, a cleaning device for removing insoluble toner and the like may be provided.

The fixing means 5 may have the same configuration as that of the fixing device 5 and includes a pressing roll 54 and a heater holder 53 holding the heater 1 And a fixing roll 51 interlocked with the pressing roll 54. [ A recording medium having an unfixed image from the image forming means is supplied between the fixing roll 51 and the pressing roll 54. The heat of the fixing roll 51 melts the toner image of the recording medium and the melted toner is pressed by the pressure contact portion between the fixing roll 51 and the pressing roll 54, And is fixed on a recording medium. The fixing means 5 shown in Fig. 18 may be provided with a fixing belt in which the heater 1 is disposed in close proximity to the fixing roll 51 instead.

In general, when the temperature of the fixing roll 51 becomes uneven and the amount of heat supplied to the toner is too small, the toner is peeled from the recording medium. On the other hand, when the amount of heat is too large, And the fixing roll 51 may be reapplied to the recording medium by a single rotation. According to the fixing means 5 having the heater of the present invention, since the temperature is quickly adjusted to a predetermined temperature, the problem can be suppressed.

The image forming apparatus of the present invention is suitable for an electrophotographic printing machine, a copying machine, or the like, since overheating of the non notification area is suppressed in use.

[4] heating devices

The heating apparatus having the heater can be appropriately selected depending on the size and shape of the object to be heated. In the present invention, for example, it can be constituted by including a housing part, a hermetically sealable window part arranged for inserting and receiving the heat treated article, and a movable heater part arranged inside the housing part. An exhaust part for exhausting the gas when the gas is exhausted by the heating of the object to be heated, a pressure adjusting part for adjusting the pressure inside the housing part , A pressure adjusting unit such as a vacuum pump, or the like. The heating may be performed while fixing the heat treatment object and the heater portion, or may be performed while moving either of them.

The present heating apparatus 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. Further, it is suitable as an apparatus for performing firing of microcrystalline materials such as an LCD panel and an organic EL panel at a desired temperature. Then, it can be used as a decompression sintering machine, a pressure sintering machine, or the like.

In addition, the present invention is not limited to the above-described specific embodiment, and various modifications may be made within the scope of the present invention depending on the purpose and use.

1: heater
11: Gas
12: Resistance heating wiring
X: transverse wiring portion
Y:
2: The object to be heated
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: Fixing Pad
53: Heater holder
54: pressure roll
P: recording medium
D ₁ : Scoring direction
D ₂ : width direction

Claims (10)

A heater for heating the object to be heated by sweeping at least one of the object to be heated and the present heater in a sweeping direction in a state of being opposed to the object to be heated,
And a plurality of resistive heat generating wirings, each of which is separately supplied with power,
Wherein the resistance heat generating wiring includes at least three horizontal wiring portions arranged in the order of the first column, the second column and the third column in the sweeping direction and a vertical wiring portion connecting the horizontal wiring portions, Shaped,
Wherein at least one resistance heating wire among the resistance heating wires has a pattern of any one of the following pattern (P ₁ ) or the following pattern (P ₂ ).
(P ₁ ): a pattern in which the second thermal transverse wiring portion X ₂ is formed shorter than the first thermal transverse wiring portion X ₁ and the third thermal transverse wiring portion X ₃ .
(P _2): the second column lateral wiring pattern portion (X ₂₎ is formed longer than the first transverse heat wire unit (X ₁₎ and the third column the transverse wire unit (X _3). The method according to claim 1,
A resistance heating wire having the pattern of (P ₁ ) and a resistance heating wire of both of the resistance heating wire having the pattern of (P ₂ )
Wherein the resistance heat generating wiring having the pattern of (P ₁ ) and the resistance heat generating wiring having the pattern of (P ₂ ) are disposed adjacent to each other. 3. The method according to claim 1 or 2,
The resistance heating wire is, the sweep direction is substantially perpendicular to the width direction, of the first wiring (L _1), second wiring (L _2), the third wires (L _3), the fourth line (L ₄₎ And at least four resistance heating wires are provided,
A vertical wiring portion Y ₁₁₂ connecting the first and second vertical wiring portions X ₁₁ and X _{12 of} the first wiring line L ₁ and a second wiring portion Y _{112 of} the second wiring L ₂ The longitudinal end portion Y ₂₁₂ connecting the first column crossing portion X ₂₁ and the second column crossing portion X ₂₂ has an opposed portion A opposed to each other with a gap therebetween,
Of the second heat lateral wire unit (X ₂₂₎ and the third heat and jongbae line portion (Y ₂₂₃₎ connecting the transverse wire unit (X _23), the third wires (L ₃₎ of said second wire (L ₂₎ The vertical wiring portion Y ₃₂₃ connecting the second and third vertical wiring portions X ₃₂ and X ₃₃ has the opposed portion B opposed to each other with a gap therebetween,
A final longitudinal wiring portion Y ₃₁₂ connecting the first and second lateral wiring portions X ₃₁ and X _{32 of} the third wiring L ₃ and a second longitudinal wiring portion Y _{312 of} the fourth wiring L ₄ , The longitudinal wiring portion Y ₄₁₂ connecting the first and second vertical wiring _portions X ₄₁ and X ₄₂ has an opposed portion C opposed to each other with a gap therebetween,
Wherein the sweep trajectory of the gap of the opposed portion (B) is positioned between the sweep trajectory of the gap of the opposed portion (A) and the sweep trajectory of the gap of the opposed portion (C) A) of the gap and the sweep locus of the gap of the opposed portion (C). 4. The method according to any one of claims 1 to 3,
Each of the resistance heat generating wirings is connected to at least four rows of the transverse wiring portions arranged in the order of the fourth column in addition to the first to third columns in the sweeping direction, The longitudinal wiring portions are connected to form a serpentine shape,
(Y _S12 ) connecting the first and second heat transfer wirings (X _S1 and X _S2 ) of the resistance heat generating wiring (L _S ) among the resistance heat generating wirings; The longitudinal end portion Y _T12 connecting the first heat transverse wiring portion X _T1 and the second heat transitory wiring portion X _T2 of the resistance heat generating wiring L _T adjacent to the wiring L _S , (D), which is located at a predetermined position,
The third column the transverse wire unit (X _S3) and the fourth column jongbae line portion (Y _S34), and the resistance heating wire (L _T) for connecting the transverse wire unit (X _S4) of the resistance heating wire (L _S) The longitudinal end portion Y _T34 connecting the third row lateral wiring portion X _T3 and the fourth column lateral wiring portion X _T4 has the opposed portion E opposed to each other with a gap therebetween,
Wherein the sweep trajectory of the gap of the opposed portion (D) and the sweep trajectory of the gap of the opposed portion (E) do not overlap. 5. The method according to any one of claims 1 to 4,
Wherein the lateral wiring portion is longer than the longitudinal wiring portion. 6. The method according to any one of claims 1 to 5,
Wherein at least a part of the vertical wirings are inclined with respect to the sweeping direction. 7. The method according to any one of claims 1 to 6,
Wherein the resistance heating wire has a positive resistance heating coefficient. A fixing device comprising the heater according to any one of claims 1 to 7. An image forming apparatus comprising the heater according to any one of claims 1 to 7. A heating apparatus comprising the heater according to any one of claims 1 to 7.

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