JPH02135683A - Woven heating element - Google Patents

Abstract

PURPOSE:To simply and accurately perform heating change-over between uniformity and partial density as well as change-over of a watt output by having insulating warps and conductive wires as warps and having insulating wefts and conductive threads as wefts while combining plain weave with double hollow weave. CONSTITUTION:Having a plurality of insulating warps 1 and conductive wires 2 being alternately arranged as warps, and having similarly a plurality of insulating wefts 3 and conductive threads 4 as wefts, ordinary weave such as hand weave provided with a single row of weave electrodes 5A, and double weave or the like provided with a plurality of weave electrodes 5B, 5C and insulating sheets 9 are formed. And, when these different kinds of weave are combined, a weave heating element able to simply and accurately perform change-over between uniform heating and partial structural heating as well as change-over of watt density or a watt output while shortening pitch between electrodes is obtained.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention is a general weaving method in which a conductive wire for a heating element and a narrow strip-shaped woven electrode connected to the conductive wire are partially woven. It is possible to weave them all at once, and it is also possible to change the heat distribution state to average or coarse and dense, to change the watt density to high or low, and to form horizontally long ones with a short pitch between electrodes with a low watt density. The present invention relates to a structure of a woven heating element that can be woven continuously and throughly.

(Prior art) A conventional woven heating element has a warp group in which conductive wires for the heating element are arranged every other or several warp insulating threads such as fiber yarns, and a predetermined interval in the weft insulating threads. It has a structure in which thin strip-like woven electrodes are arranged in the weft direction by interweaving a plurality of conductive wires and are woven with a group of weft threads.
It is also known from the publication No. 41893.

(Problem to be solved by the invention) In a woven structure in which the conductive wire and the woven electrode are intertwined over the entire width and electrically connected, the warp structure remains constant during the weaving process. Because it remains unchanged, the specific resistance and distribution state in the conductive wire between the electrodes are fixed, so even if you want to change the setting for uniform heating to locally coarse and dense areas. Moreover, even if it is desired to perform the reverse switching, it is structurally impossible, and it is inconvenient that it can only be used in a fixed manner.

In addition, even if you want to change the capacity (watt output) high or low in a given shape, it is impossible to do so because the resistance value between the woven electrodes is constant, and the only way to do this is by changing the voltage level, so using a constant voltage commercial power supply I can not cope.

Furthermore, it is possible to change the wand density by changing the pitch between the electrodes, but in this case, increasing the pitch will cause the watt density to decrease inversely, and decreasing the pitch will increase it. It is impossible with conventional devices to change the pitch between the electrodes without changing the wattage density, or in other words, to change the heating area, so there is a need for something that can be switched in various ways depending on the usage conditions. Despite this, the problem is that it is difficult to easily provide a device that can accommodate a wide variety of switching with conventional devices.

In order to address these problems, the present invention makes it easy and precise to switch between uniform heating and partial coarse/dense heating, to switch watt density or watt output, and to apply it to elongated heating elements with short interelectrode pinches. To provide a woven heating element that can be mass-produced by continuous continuous weaving. To provide a large woven heating element at a low price while maintaining product quality.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the invention of claim 1 provides for a large number of warp insulating threads (1), as is clear from the embodiments shown in the accompanying drawings. , conductive wire for heating element (
A plurality of conductive threads (4) are arranged in parallel in a warp group formed by arranging the warp threads (2) alternately or every other plurality, and a large number of weft edge threads (3) intersecting and woven with the warp thread groups. Line electrodes (5) intersecting and woven across the warp groups are arranged alternately with a predetermined interval between those in a train row (5A) and those in double rows (5B) and (5C') that are close to each other. A single row of wire electrodes (5A) is formed from a group of weft threads, and a single row of wire electrodes (5A) is formed from the conductive wires (2).
On the other hand, weft yarns consisting of double-row wire electrodes (5B) and (5C) and an appropriate number of weft edge yarns (3) in the middle and front and rear portions are woven. The woven structure part (6) has about half of the conductive wires (2) and about half of the warp insulating threads (1) assembled with one wire electrode (58) and about half of the weft edge threads (3). In addition, one woven layer (7) is formed by electrically connecting and weaving a line electrode (5C) and a conductive wire (2), the other line electrode (5C), and the remaining weft edge yarn (1). ) to make wire electrode (5C) and conductive wire (2)
and the other woven layer (8) which is electrically connected to the woven layer (8) to form a double-layer hollow weave.

A fibrous heating element is constructed by interposing an insulating sheet (9) between (8) and (8).

Therefore, based on the above-mentioned structure, claim 2 is a unit heating element of a predetermined length in which a single row of wire electrodes (5A) and double rows of wire electrodes (5B) and (5C) are present at both ends. , Claim 3 specifies that the double-row line electrodes (5B) and (5C) form a unit heating element of a predetermined length, with the line electrodes (5A) in the middle part and the train line electrodes (5A) in both ends, respectively. and
Furthermore, claim 4 provides double-row wire electrodes (5B), (5C).
are electrically connected to half of the conductive wires (2), respectively.
C) is specified in the structure of claim 2 or 3, respectively, that the conductive wire (2) is electrically connected to each conductive wire (2) individually, to each plurality of conductive wires, or to each other in an appropriate combination thereof. It is.

On the other hand, the invention of claim 6 provides a warp group in which conductive wires (2) for heating elements are arranged alternately or every other plurality of warp insulating yarns (1), and a warp group that intersects the warp group. A plurality of conductive yarns (4) are arranged in parallel in a large number of woven weft edge yarns (3), and wire electrodes (5) are woven to intersect with the warp group in double rows (5C) close to each other. ), (5C), which are arranged at a predetermined interval, and are formed from double rows of wire electrodes (5B), (5C") and an appropriate number of weft edges at the intermediate part and the front and rear parts. The weaving structure part (6) that weaves the weft consisting of the thread (3) has approximately half of the conductive wire (2) and about half of the weft line edge yarns (3) and one line electrode (5C). One weave N (7) is made by combining half of the warp insulating threads (1) and electrically connecting the wire electrode (5C) and the conductive vA (2), and the other wire electrode ( 5C) and the remaining weft edge yarn (3), the remaining conductive wire (2) and the remaining warp insulating yarn (1) are combined to electrically connect the line electrode (5C) and the conductive wire (2). The insulating sheet (
9) is used to form the fibrous heating body.

Based on the structure of claim 6 described above, claim 7 specifies that the structure is a unit heating element of a predetermined length with double rows of wire electrodes (5C) and (5C'') located at both ends, respectively. Yes, and claim 8 further provides one double row of wire electrodes (5i+
), (5C) are electrically connected to half of each side of the conductive wire (2), and the other wire electrodes (5!l), (5C
) is electrically connected to each of the conductive wires (2), to each of a plurality of conductive wires, or to an appropriate combination thereof alternately.

(Function) The present invention uses warp insulating threads (11, conductive wires (2) as warp threads,
It is a simple process in which the weft edge yarns (3) and conductive yarns (4) are provided as weft yarns, respectively, and are woven using a combination of ordinary weaves such as plain weave and double bag weave. 5g
), (5C, > by weaving a double bag weave and interposing an insulating sheet (9), the conductive vA (2) for the heating element and the wire electrode (5B), (5C) are separated.
), it is possible to make a weave-like electrical connection that does not cause any electrical interference between the electrodes (5C) and (5C). It's easy just to connect the .

In claim 2, the single row woven electrode (5A) is used as a common electrode or a relay electrode, and the double row woven electrodes (5B) and (5C) are used as one electrode for switching or a counter electrode for voltage application, respectively. Depending on the connection type, half-surface heating, full-surface heating, halving of watt density, and partial change in density of watt density can be selected.

According to a third aspect of the present invention, each of the above-mentioned switching can be performed entirely by the fiber heat of the unit body, so that it can correspond to various modes.

Claim 4 provides that switching to partial heating can be easily performed, and Claim 5
is particularly suitable for switching the heating area, and claim 5 is also suitable for partially changing the watt density.

According to a sixth aspect of the present invention, the heating change state of the fourth aspect can be switched by one heating element.

Next, claim 7 is a suitable example for arbitrarily performing the heating change of the above-mentioned item 4, and claim 8 is a suitable example for performing the heating change between the whole surface and the half surface and the output wattage increase/decrease change. It is.

(Example) Hereinafter, an example of the present invention will be described based on the accompanying drawings.

1 and 2 are organizational diagrams showing essential parts of an embodiment according to the invention of claim 1.2, in which a warp group and a weft group are woven in a plain weave for most of the sheet shape, and the warp For the group, warp insulation yarn such as polyethylene flat yarn (1)
(Insulating threads in the left and right direction in Figure 1) They are arranged every few pieces.

Next, regarding the weft yarn group, the weft edge yarn (3) (insulating thread in the vertical direction in Figure 1) woven into the warp group is mainly composed of, for example, polyethylene flat yarn, and the weft edge yarn (3) is woven into the warp group. A band-shaped woven electrode (5) is made by arranging a plurality of conductive threads (4), for example copper foil threads made by spirally double-wound copper foil around a core thread, and weaving them into a group of warp threads.
There are three threads per unit heating element in a predetermined area: a single row arrangement (5A), a double row arrangement (5g), and (5C), and the warp group is cut to a predetermined length. When formed into a regular shape of 1 to 3 tatami mats, it has a single row edge electrode (5C) at a position near one cut end of the warp group, and is close to each other with a narrow interval at a position near the other cut end. It has double-row woven electrodes (5B) and (5C).

For the single row edge electrode (5A), the warp insulating thread (1
) and the conductive wires (2) by interweaving them in a series using twill weave or the like, thereby contacting each of the conductive wires (2) and making them conductive. Note that in the figure, hatched areas correspond to locations where electrical connections are made.

In this case, since the entire surface of both the conductive wire (2) and the conductive thread (4) is a conductive portion, it is easy to electrically connect them by simply intertwining them.

On the other hand, the double-row woven electrodes (5B) and (5C) can each be individually connected to the single-row edge electrode (5A) through a resistor without causing an electrical short circuit between the two electrodes. Since it is necessary, the electric shock wire (2) in the warp group
Divide into two and use one as an electrode (5B) and the other as an electrode (5C).
), the weave of this part must have a special form.

Therefore, as shown schematically in Fig. 2, the picture electrode (5°), (
5C), the weft edge threads (3) located in the middle, and an appropriate number of weft edge threads (3) located at the front and rear sides of the weave electrode (6). 5C) and a plurality of weft line edge yarns (3) in front and behind the conductive threads (4) forming the conductive wire (4) are woven into the weave half of the number of conductive wires (2) that fly every other conductive wire (2). Woven electrodes (5II) and conductive wires (2) are made by weaving the warp insulating threads (1) by combining them with half the number of flying insulating threads (1) by plain weaving or the like.
A plurality of conductive threads (4) are electrically connected to form one woven layer (7), and a plurality of conductive threads (4) forming the other woven electrode (5C) and a plurality of latitude line edges before and after the conductive threads (4). Thread (3
) is woven by combining the remaining conductive wire (2) and the warp insulating thread (1) to create an electrical connection between the woven electrode (5C) and the conductive wire (2). They are connected to form the other woven layer (8).

In this way, the two weaves N(7) described above are connected at both the front and rear ends, and are separated vertically between them, resulting in a double layer bag weave structure.

In addition, in each of the woven electrodes (5A) to (5C), the several weft edge yarns (3) arranged before and after the electrodes are replaced with polyethylene flat yarns and are made of fine yarns such as staple fiber spun yarns. It is preferable to weave it as a reinforcing layer to fix the position of the bundle of conductive threads (4) forming each electrode so that it will not shift or move.

As described above, most of the single weave parts and the double row weave electrodes (5
++), (5C) can be continuously woven using an m machine, and in the process immediately following the weaving process, it can be woven manually or by mechanized automatic operation. A thin insulating sheet (9) made of polyethylene film or the like is inserted from the side between two woven layers (7) and (8) forming a double-layer hollow weave, and is continuously woven. A heating body is obtained.

This discerning heating element is cut in the weave width direction of the weft edge yarn (3) existing between the single-row weave electrode (5A) and the double-row weave electrode (5B), (5C) which are provided close to each other. By doing so, a unit heating element is obtained, and as shown in FIGS. 1, 3, and 4.
As shown in the figure, approximately half of the conductive lines (2) are connected in parallel between both picture electrodes (5B) and (5B), and approximately half of the remaining conductive lines (2) are connected in parallel between the two picture electrodes (5B) and (5B), and approximately half of the conductive lines (2) are connected in parallel between the two picture electrodes (5B) and (5B), and the remaining half of the conductive lines (2) are connected in parallel between the two picture electrodes (5B) and (5B). ! (For 21, both picture electrodes (5A).

(5C) are connected in parallel between the woven electrodes (5C), (
5C) A thermal body without direct electrical interference between the two is obtained.

The one shown in FIG. 1 is a form in which every other conductive wire (2) is connected alternately to woven electrodes (5C) and woven electrodes (5C'), and corresponds to the invention of claim 5. and woven electrode (5
When a voltage is applied between A) and the woven electrode (5B) or the woven electrode (5C), half the resistance is energized,
The entire surface is heated with two outputs, and the woven electrode (5B), (5
By short-circuiting C) and applying a voltage between it and the woven electrode (5A), all the resistors are energized, resulting in heating operation on the entire surface at full power, and two-step switching of the wattage output is possible.

Next, the one in FIG. 3 is an example of the invention as claimed in claim 4, in which the conductive wire (2) is connected to the woven electrodes (5B) and 5C (5C) on each half. ) and woven electrode (
5C) or woven electrode (5C), half the resistance is energized and the upper half surface, 2 outputs or the lower half surface 2
When the woven electrode (5°) and (5C) are short-circuited and a voltage is applied between them and the woven electrode (5C), all the resistors are energized and the entire surface is heated at full output. When electricity is further applied between the woven electrode (5C) and the woven electrode (5C), the pitch between the electrodes becomes β, +lO, which is essentially 2
Since it is doubled, heating operation is performed on the entire surface at 1/4 output, and three-stage switching of energized area, wattage output, and soft density is possible.

On the other hand, in Fig. 4, the conductive wire (2) is woven into a woven electrode (5B), (5
For C), 1 every second, 2 consecutive every other, 3
This corresponds to claim 5 as it shows an example in which the arrangement of the connections is appropriately different as in this series, and in the connection form shown in FIG. 4, the woven electrode (5A) and the woven electrode (5) When electricity is applied between the two, on each surface divided into upper and lower thirds, two conductive wires (2) on the upper surface have a rough minimum watt density, and three conductive wires (2) on the middle surface have an average watt density. The density has an intermediate value, the conductive wires (2) on the lower surface are dense with three, and the watt density shows the maximum value, and it has a dense and dense distribution form, making it possible to heat suitable for, for example, a cold head and a cold foot. Become.

In addition, in this example, if the woven electrodes (5B) and (5C) are short-circuited and electricity is applied between them and the woven electrode (5A), all the conductive wires (2) can be energized and the entire surface becomes full output. In this way, two-stage switching between coarse and dense heating and soaking is possible.

Next, FIG. 5 shows an example according to claim 3.5, in which double rows of woven electrodes (5B) and (5C) are interposed in the intermediate part,
A single row of woven electrodes (5a+) and (5az) are arranged at both ends to form a unit heating element, and woven electrodes (5C) and (5az) are arranged at both ends to form a unit heating element.
5C) has a configuration in which every other conductive wire (2) is connected alternately.

In this example, seven switching heating operations are possible by changing the combination of woven electrodes to which voltage is applied as shown below.

(a), 5Al and 5! Left half when I or 5C, 1/4 output, (II+), left half when 5AI and 5B, 5C shorted, 1
/2 output, (c), right half with 5□ and 5B or 5C, 1/
4 outputs, (2), 5A! and 5B, 5C and short circuit, right half, 1/2 output, (*), 5AI and 5az (5B and 5C
(same), full surface, 1/4 output, (to), 5AI+5AZ
Short circuit and 5. or 5. Full surface, 1/2 output, (G), 5A
l+5A! Short circuit and 5B, 5C short circuit will give full output.

Note that, unlike the above example, the picture electrode (5C) is connected to the conductive line (2) in the upper half, and the picture electrode (5C) is connected to the conductive line (2) in the lower half.
2) is also available and corresponds to the example according to claim 3.4, which allows six switching heating operations.

On the other hand, FIG. 6 is an example according to claim 8, in which double rows of picture electrodes (5C) at both ends of a unit heating element having a predetermined area;
(5C) are provided respectively, and one of them, for example, (5□) and (5CI) on the left side of the figure, are electrically connected by weaving half of each conductive wire (2) on one side, respectively. The electrodes (5az) and (5Ct) are electrically connected to the conductive wA (2) by interweaving them alternately every other electrode.

In this example, by changing the combination of picture electrodes to which voltage is applied as described below, six switching heating operations are possible.

(a) Lower half of 5□ and 5□ or 5C2, 1/4 output, (
[+], Upper half with 5Cl and 5□ or 5Ct, 1/4 output, (c), Lower half with 5□ and 5B2 r 5Cz short circuit,
1/2 output, (D), 5CI and 5Bg + 5Cz short circuit, upper half, 1/2 output, (Reference), 5□ and 5CI short circuit, 5□ + 5Ct short circuit, full surface, 1/2 output, ( to), 5
Full surface with s++5C+ short circuit and 5Cg + 5Cz short circuit,
Full power.

Regarding the combination of a pair of double-row edge electrodes, in addition to the above example, it is also possible to use various ways of connecting each picture electrode to the conductive wire (2). Of course, it is also possible to vary the watt density.

Although each side has been explained above, in particular, in the case of the example according to claim 2, the length parallel to the longitudinal direction of the electrodes remains the same, and the pitch between the electrodes is narrowed to create a heating element with half the area of the predetermined area. It has the advantage of being able to respond immediately when desired.

In other words, in the case of the conventional product listed in the prior art section, if the pitch of the picture electrodes was woven to be narrowed by half, the resistance between the electrodes would be 〃, and the wattage output would be the same as when fed with equal voltage. 4
It becomes twice as large and cannot be used as a heating element.

However, in the case of the example of the present invention, the pitch of the picture electrodes is
Even if narrowed down to 1, by using a weave in which conductive wires (2) are connected alternately to every other row of picture electrodes (5B) and (5C), one picture electrode (5C) or (5C) ), the wattage output will be %, and the reduction in area and wattage output will be matched to provide a woven heating element that can meet the demand.

(Effects of the Invention) The present invention has the configuration and operation described above, and the effects are as follows.

Claim 1 is a single row picture electrode (5A) and a double row picture electrode (5g
), (5C), and the double-row side is formed into a double-layer hollow weave, and the insulating sheet (9) is attached to both layers (7), (
8) Because it is interposed between the adjacent picture electrodes (5B
).

(5C) can be used as independent electrodes so that there is no mutual electrical interference, so it is possible to continuously produce long items by repeatedly weaving them in a predetermined pattern, and by cutting them, the desired unit heat generation can be achieved. Since the body is easily obtained, it is possible to provide products at low cost due to the mass production effect due to improved productivity.

The economic effect that this low cost can provide is due to the double-row picture electrode (
The same applies to claim 6, which is a repeated weave of 5B) and (5C).

As for claim 4, which refers to claim 2, three-stage switching between full and half surfaces can be easily performed, and as for claim 5, which refers to claim 2, it is possible to easily perform three-step switching between full and half surfaces, and as for claim 5, which refers to claim 2, there is It has the advantage that switching heating and watt density can be easily switched, and in both cases, it is possible to use a long and narrow heating element with a narrow pitch between the electrodes without changing the length of the picture electrode in the longitudinal direction. There is.

On the other hand, regarding claims 4 and 5 and claims 7 and 8 which refer to claim 3, in addition to the above-mentioned effects, there are 6 types and 7 types of effects.
Various switching modes are possible, which has the advantage of being able to adapt to and satisfy a wide variety of usage conditions in actual use.

[Brief explanation of the drawing]

FIGS. 1 and 2 are conceptual illustrations of the embodiments of the present invention.
11 Weave plan view and sectional view, and FIGS. 3 to 6 are conceptual weave structure plan views according to each embodiment of the present invention. (1)... warp insulating thread, (2)... conductive wire, -(3
)...Weft insulating thread, (4)...Conductive thread, (5A)
...Single row woven electrode, (5+), (5C)...Double row woven electrode, (6)
... woven structure part, (7) ... woven layer, (9) ... insulation sheet. Fig. Fig. Fig. Weaving structure section

Claims (1)

[Scope of Claims] 1. A group of warp yarns in which conductive wires (2) for heating elements are arranged alternately or every other plurality of warp insulating yarns (1);
A plurality of conductive threads (4) are arranged in parallel among a large number of weft insulating threads (3) woven to intersect with this warp group, and a woven electrode (5) is woven in a single row to intersect with the warp group. The woven electrode (5_A) is formed from a group of weft yarns arranged alternately with a predetermined interval between the weft yarn (5_A) and the double-row yarns (5_B) and (5_C) close to each other, and the single-row woven electrode (5_A) is All of the conductive wires (2) are electrically connected and woven;
A woven structure section (6) that weaves weft yarns consisting of double-row woven electrodes (5_B), (5_C) and an appropriate number of weft insulating yarns (3) in the middle and front and rear portions of the woven electrodes (5_B) and (5_C) is connected to one woven electrode ( 5_B) and about half of the weft insulating yarn (3), about half of the conductive wire (
2) and about half of the warp insulating threads (1) to form a woven electrode (
5_B) and a conductive wire (2) electrically connected and woven together, one woven layer (7) and the other woven electrode (5_
C) and the remaining weft insulating yarn (1) to form a woven electrode (5
_C) and the other woven layer (8) which is woven by electrically connecting conductive wires (2), the two woven layers (7), ( A woven heating element characterized in that an insulating sheet (9) is interposed between the elements (8) and (8). 2. Single row woven electrode (5_A) and double row woven electrode (5_B)
, (5_C) are unit heating elements of a predetermined length that exist at both ends of the woven heating element. 3. The woven heating element according to claim 1, wherein the woven heating element is a unit heating element of a predetermined length, with the double row woven electrodes (5_B) and (5_C) existing in the middle and the single row woven electrode (5_A) at both ends. 4. The woven heating element according to claim 2 or 3, wherein double rows of woven electrodes (5_B) and (5_C) are electrically connected to half of the conductive wires (2), respectively. 5. Claim 2, wherein the double rows of woven electrodes (5_B) and (5_C) are electrically connected to each of the conductive wires (2) individually, to each plurality of conductive wires, or alternately in an appropriate combination thereof. Or the woven heating element according to 3. 6. A warp yarn group in which conductive wires (2) for heating elements are arranged alternately or every other plurality of warp insulating yarns (1);
A plurality of conductive threads (4) are arranged in parallel among a large number of weft insulating threads (3) woven to cross the warp group, and woven electrodes (5) are woven to cross the warp group and are placed close to each other. double row (5
A double row woven electrode (5_B) is formed from a group of weft threads arranged at a predetermined interval and arranged at (5_B) and (5_C).
, (5_C) and an appropriate number of weft insulating yarns (3) in the intermediate part and the front and rear parts (6) for weaving weft yarns.
is one woven electrode (5_B) and about half of the weft insulating threads (
For 3), about half of the conductive wire (2) and about half of the warp insulating thread (1) are combined to form a woven electrode (5_B) and a conductive wire (2).
One woven layer (7) is electrically connected to the other woven electrode (5_C) and the remaining weft insulating thread (3) is connected to the remaining conductive wire (2) and the remaining woven layer (7). The other woven layer (
A woven heating element characterized in that it is formed into a double-layer hollow weave consisting of (8) and (8), and an insulating sheet (9) is interposed between the two weave layers (7) and (8). 7. The woven heating element according to claim 6, which is a unit heating element having a predetermined length and having double rows of woven electrodes (5_B) and (5_C) at both ends, respectively. 8. One double-row woven electrode (5_B), (5_C) is electrically connected to half of each side of the conductive wire (2), and the other woven electrode (5_B), (5_C) is connected to the conductive wire (2). 2)
8. The woven heating element according to claim 7, wherein each of the woven heating elements is electrically connected to each other alternately, each of a plurality of them, or an appropriate combination thereof.