KR102199815B1 - Plate heater having touch switch - Google Patents

Abstract

The present invention relates to a flat heating element having a touch switch, and more specifically, to a flat heating element having a touch switch, which is provided with a touch switch by a capacitive sensor so that a user can easily and conveniently control an on-off operation of the flat heating element, can simplify a design of equipment provided with the flat heating element, and thus can be easily applied to various types of equipment.

Description

Plane heater having touch switch {Plate heater having touch switch}

The present invention relates to a surface heating heater provided with a contact type switch. Specifically, the present invention is provided with a contact type switch by a capacitive sensor so that the user can easily and conveniently control the on-off operation of the planar heating heater, and design of the facility equipped with the planar heating heater The present invention relates to a planar heating heater equipped with a contact type switch, which can be simplified and thus easily applied to various types of equipment.

The planar heating heater is a compact heater in which electrodes, heating elements, etc. are printed on a support plate on a plane, and is suitable for various applications such as electric and electronic products requiring miniaturization and weight reduction, for example, printers, copiers, heaters, ovens, and cookers. Can be applied.

Since the conventional planar heating heater must be operated through a switch provided separately, in the facility to which the planar heating heater is applied, if the operator of the facility and the user receiving the heat sensation from the planar heating heater are different people, for example, other than the driver of a car. To allow the user to directly control the operation of the surface heating heater when the occupant of the passenger wants to operate the surface heating heater provided on the back of the seat back of the passenger as a surface heating heater for providing a feeling of heat to himself. The design of the facility is complicated due to reasons such as that a switch must be separately provided, and there is a problem in that the applicable facility is limited. In addition, in order to provide a feeling of warmth to the occupants, the surface temperature of the planar heating heater must be heated to around 70°C to 130°C, but there is a risk of low temperature burns when contacting the body. In this case, when a load of a certain amount or more, for example, a load of 1 kgf or more, is applied, the current intensity can be automatically reduced or the operation of the surface heating heater can be stopped.

Therefore, it is possible to easily and conveniently control the on-off operation of the planar heating heater, and by preventing low-temperature burns caused by physical contact of the occupant, it is possible to simplify the design of the facility equipped with the planar heating heater. There is an urgent need for a surface heating heater that can be easily applied to various types of equipment. For example, in order to distinguish between the ON-OFF operation of the surface heating heater and the operation by body contact, the ON operation is operated when a pressure of 5kgf or more is applied for 3 seconds or more, and the human body contact is the instantaneous current when a load of 1kgf or more is applied. You can reduce the intensity or make it work off.

An object of the present invention is to provide a planar heating heater provided with a contact type switch so that a user receiving a feeling of heat from the planar heating heater can easily and conveniently control an on-off operation.

An object of the present invention is to provide a planar heating heater equipped with a contact type switch that can be easily applied to various types of facilities while simplifying the design of a facility equipped with a planar heating heater.

In order to solve the above problems, the present invention

A surface heating heater provided with a contact type switch, comprising: a heater unit for providing a feeling of heat to a user; And a switch part coupled to the heater part and controlling an on-off operation of the heater part, wherein the switch part turns on-off the heater part by contact with a part of the user's human body. It provides a planar heating heater comprising a contact switch for controlling the operation.

Here, the contact type switch provides a planar heating heater, characterized in that it includes a contact type switch by a capacitance sensor.

In addition, the contact type switch provides a planar heating heater, characterized in that it includes a pair of electrodes formed on the surface of the electrically conductive film and spaced at a predetermined interval.

In addition, the contact type switch provides a planar heating heater, characterized in that it includes an electrically conductive film and a pair of electrodes buried in the electrically conductive film and spaced apart at predetermined intervals.

Meanwhile, the pair of electrodes includes a transfer electrode (Tx) and a receive electrode (Rx), and when a voltage is applied to the transfer electrode (Tx), between the transfer electrode (Tx) and the receive electrode (Rx) A minute current flows through the electric conductive film, and an ammeter capable of measuring the current amount of the minute current is connected to the receive electrode Rx, and the switch unit senses a change in the amount of current measured by the ammeter, and the heater unit It provides a planar heating heater, characterized in that it further comprises a control unit for controlling the on-off (on-off) operation.

In addition, the electrically conductive film is formed from a conductive paste including at least one conductive particle selected from the group consisting of ITO (Indium Tin Oxide), carbon nanotube (CNT), metal mesh, and silver nanowire. It characterized in that it provides a planar heating heater.

In addition, the electrically conductive film provides a planar heating heater, characterized in that laminated on the heating surface of the heater unit.

Meanwhile, the heater unit is formed by stacking a base substrate, an electrode pattern, and a heating element from a lower or upper portion, and the switch unit is coupled to a lowermost portion of the heater unit, and the heater unit and the heater unit when a heating element is stacked at the lowermost portion thereof. An insulating film is further included between the portions, the electrode pattern includes a pair of electrodes having different polarities and spaced apart from each other, and the heating element has both ends in contact with each of the pair of electrodes. , Provide an area heating heater.

In addition, the heater unit provides a planar heating heater, characterized in that it further comprises a heat insulating material on the top.

The planar heating heater equipped with a contact type switch according to the present invention is provided with a contact type switch by a capacitive sensor, so that the user can easily and conveniently control the on-off operation, and a planar heating heater is provided. At the same time, it is possible to simplify the design of the equipment to be used, thereby exhibiting excellent effects that can be easily applied to various types of equipment. It has the effect of preventing low-temperature burns caused by physical contact of the occupants.

1 is a perspective view schematically showing a planar heating heater according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view schematically showing a cross section A-A' in the planar heating heater shown in FIG. 1.
3 schematically shows the transmittance of the planar heating heater shown in FIG. 1.
4 and 5 illustrate another embodiment of a switch electrode in the planar heating heater shown in FIG. 1, respectively.
6 schematically shows another embodiment of a heater unit in the planar heating heater shown in FIG. 1.
FIG. 7 schematically shows a perspective view of a heater in a state in which the constituent layers shown in FIG. 6 are sequentially stacked.
FIG. 8 schematically shows the cross-sectional structure BB′ in FIG. 7.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosed contents may be thorough and complete, and the spirit of the invention may be sufficiently conveyed to those skilled in the art. Throughout the specification, the same reference numbers indicate the same elements.

1 is a perspective view schematically showing a planar heating heater according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view schematically showing a section A-A' in the planar heating heater shown in FIG. 1, and FIG. 3 is It schematically shows the transmittance of the planar heating heater shown in FIG. 1.

As shown in Figures 1 to 3, the planar heating heater according to the present invention controls the heater unit 100 for providing a feeling of warmth to the user and the on-off operation of the heater unit 100 A switch unit 200 may be included, and the switch unit 200 may be stacked on one surface of the heater unit 100, in particular, a heating surface of the heater unit 100 to be integrally coupled to each other.

Here, when power is applied from the outside, the heater unit 100 generates heat and irradiates radiant light to the user to provide a feeling of heat, and the switch unit 200 applies power to the heater unit 100 By controlling whether or not, the on-off operation of the heater unit 100 may be controlled.

Specifically, the heater unit 100 may be formed by sequentially stacking the base substrate 110, the electrode pattern 120, the heating element 130, and the insulating layer 140 from the bottom. In particular, the electrode pattern 120 ) Has a pair of electrodes having different polarities and spaced apart from each other at regular intervals, and a plurality of the heating elements 130 may be provided, and both ends of each heating element 130 are connected to each of the pair of electrodes. Can be.

Accordingly, when external power is applied to the pair of electrodes, current flows through the heating element 130, and the heating element 130 generates heat by its specific resistance, thereby forming the insulating layer 140 by conduction. Thermal energy is transmitted to the sensor unit 200 through the sensor unit 200, and as a result, the heated sensor unit 200 provides a feeling of heat to the user by irradiation with radiation.

Here, the heater unit 100 minimizes heat energy loss due to heat generation of the heating element 130 and allows most of the heat energy to be transferred to the sensor unit 200 through the base substrate 110. An insulating material (not shown) may be additionally provided on the lower surface of 110).

Meanwhile, the switch unit 200 may include a contact type switch by a capacitive sensor, and the contact type switch by the capacitive sensor is stacked on an upper surface of the insulating layer 140 of the heater unit 100. An electrically conductive film 210, a pair of electrodes 220 and 230 formed on the upper surface of the electrically conductive film 210 or buried in the electrically conductive film 210 with the upper surface exposed and spaced apart from each other at a predetermined interval And it may include a protective film 240 for protecting the pair of electrodes 220 and 230 from the outside.

Specifically, the pair of electrodes may include a transfer electrode (Tx) 220 and a receive electrode (Rx) 230, and the transfer electrode (Tx) 220 includes a CMOS drive A fine voltage is applied by such as, whereby a fine current flows between the transfer electrode (Tx) 220 and the receive electrode (Rx) 230 through the electrical conductive film 210, and the receive electrode (Rx) An ammeter or the like capable of measuring the current amount of the minute current may be provided at 230.

Here, a portion of the transfer electrode (Tx) 220 and the receive electrode (Rx) 230, for example, silver (Ag) for terminal connection on a portion disposed adjacent to the edge of the electrically conductive layer 210 ) A paste electrode (not shown) may be additionally provided.

Accordingly, when a user's finger or the like partially contacts the electric conductive film 210 between the pair of electrodes 220 and 230, a part of the current flowing through the electric conductive film 210 is transferred to the user's finger or the like. The amount of current of the minute current that is introduced and measured by the ammeter changes, and the on-off of the heater unit 100 by controlling whether or not power is applied to the heater unit 100 by sensing this through a separate control unit ( on-off) operation can be controlled.

In particular, as shown in FIG. 3, in the stacked structure of the heater unit 100 and the switch unit 200, the heating element 130 of the heater unit 100 is a transfer electrode (Tx) of the switch unit 200. ) It may be disposed between 220 and the receive electrode (Rx) 230 so as not to overlap with each of the electrodes 220, 230, whereby when the heating element 130 generates heat, the pair of electrodes 220, 230 By directly transferring heat energy, the problem of deterioration of the pair of electrodes 220 and 230 may be solved.

4 and 5 illustrate another embodiment of a switch electrode in the planar heating heater shown in FIG. 1, respectively.

4 and 5, as the switch unit 200, a pair of electrodes provided in a contact type switch by a capacitive sensor, that is, a transfer electrode (Tx) 220 and a ribs electrode (Rx) 230 ) May be formed in various forms on the electric conductive film 210, and as described above, the heating unit 100 between the transfer electrode (Tx) 220 and the libis electrode (Rx) 230 The heating elements 130 may be arranged so as not to overlap each other.

On the other hand, in the planar heating heater according to the present invention, the upper and lower positions of the heater unit 100 and the switch unit 200 may be changed according to the applied use, and the heater unit 100 and the switch unit 200 Bad and bad can also be interchanged.

Through this structure, the planar heating heater equipped with a contact type switch according to the present invention allows the user to easily and conveniently control the on-off operation, and simplifies the design of the facility equipped with the planar heating heater. At the same time, it exhibits excellent effects that can be easily applied to various types of equipment.

6 schematically shows another embodiment of a heater in the planar heating heater shown in FIG. 1, and FIG. 6 schematically shows a perspective view of a heater in a state in which the constituent layers shown in FIG. 6 are sequentially stacked. 6 schematically shows a cross-sectional structure BB′ in FIG. 6.

In the heater unit 100 of the planar heating heater shown in FIG. 1, a plurality of heating elements 130 are connected in parallel to each other, whereas the heater unit 100 ′ shown in FIG. 6 has a plurality of heating elements 130 ′ in series with each other. The base substrate 110', the electrode plate 120', the insulating film 150', the heating element 130', the protective film 140', etc. are sequentially connected from the bottom to have such a serial structure. It can be formed by stacking.

Here, the base substrate 110 ′ may have a shape corresponding to the shape of the electrode plate 120 ′ stacked on the base substrate 110 ′, and the electrode plate 120 ′ may be applied to photolithography. It may include a plurality of electrodes spaced apart from each other by a gap 125 ′ that may be formed to have a width of about 0.05 to 10 mm by etching or the like, and a plurality of electrodes spaced apart from each other and not electrically connected to the plurality of heating elements All are electrically connected to each other by (130').

Specifically, as shown in FIG. 6, the insulating film 150 ′ stacked on the electrode plate 120 ′ includes a plurality of perforated electrodes to the electrode surface of the electrode plate 120 ′ by etching by a laser device. A perforated line 151 ′ is formed, and both ends of each of the heating elements 130 ′ stacked on the insulating film 300 are connected to each of a pair of adjacent electrodes through the perforated line 151 ′. All of the two electrodes are electrically connected to each other.

Further, a plurality of electrodes included in the electrode plate 120 ′ may be disposed in a plurality of rows and columns, and electrodes 123 ′ and 124 ′ disposed at one end of an adjacent row or column may be included in both adjacent rows or columns. By having a shape that can be used, even when a plurality of electrodes are arranged in a plurality of rows and columns, the whole can be electrically connected to each other.

Accordingly, among the plurality of electrodes electrically connected to each other through the plurality of heating elements 130 ′, a pair of end electrodes 121 ′ and 122 ′ disposed at both ends have different polarities and have different polarities. When a voltage is applied to the pair of end electrodes 121 ′ and 122 ′, the plurality of heating elements 130 ′ are connected in series as a whole so that current flows according to the “current flow” shown in FIGS. 7 and 8.

The insulating film 150 ′ stacked on the electrode plate 120 ′ may have a plurality of perforation lines 151 ′ perforated to the surface of the lower electrode plate 120 ′, as described above, and the According to the length between the pair of perforation lines 151' connected to the surface of each of the pair of electrodes adjacent to each other among the plurality of perforation lines 151', each of the pair of perforation lines 151' Since the width of the heating element 130 ′ whose ends are connected to each of the pair of electrodes is determined, the heating performance can be adjusted by adjusting the length between the pair of perforated lines 151 ′.

In particular, the pair of perforated lines 151 ′ has a width parallel to the direction of the current in the heating element 130 ′ into which each end is inserted into each of the pair of perforated lines 151 ′. It may be formed to be the same, for example, may be formed parallel to each other. Accordingly, each of the heating elements 130' has the same resistance in all directions of any current, and as a result, heat is uniform, so that temperature uniformity can be realized.

In the heater unit (100,100'), the base substrate (110,110') is polyethylene terephthalate (PET), polyimide (PI), polyacrylonitrile (PAN), polyurethane (polyethyelene terepthalate; polyurethane; PU), silicone, polycarbonate (PC), Tefron, liquid crystal polymer (LCP), polyether ether ketone (PEEK), polyethersulphone (PEEK) ), polyacrylate (PAR), polyetherimide (PEI), polyethylene naphthalate (polyethyelenen napthalate; PEN), polyphenylene sulfide (PPS), polyarylate (polyallylate), cellulose tree It may be made of at least one plastic material selected from the group consisting of acetate (cellulose triacetate; CTA), cellulose acetate propinonate (CAP), and the like.

In addition, the electrode pattern 120 and the electrode plate 120 ′ may be made of a metal material such as copper, aluminum, steel, and alloys thereof, and the heating elements 130 and 130 ′ include mixed binders and conductive particles. After printing the heating element composition can be formed by drying.

The mixed binder may include two or more selected from the group consisting of phenolic resins, acetal resins, isocyanate resins, epoxy resins, etc. so as to have heat resistance even at a temperature of about 300°C, and the conductive particles It includes carbon particles such as carbon black, carbon nanotubes, graphite, activated carbon, etc., which can also improve heat resistance of the heating elements 130 and 130 ′, and may further include metal powders such as silver, copper, and nickel.

On the other hand, in the contact switch constituting the switch part 200, the electrically conductive film is coated from a conductive paste including ITO (Indium Tin Oxide), carbon nanotubes (CNT), silver nanowires, etc. Alternatively, it may be formed through deposition by sputtering, etc., and the pair of electrodes 220 and 230 may be made of a metal material identical to or different from the electrode pattern 120 or the electrode plate 120 ′, and formed in various patterns. According to the pattern shape, it can be formed by photoresist, vapor deposition, imprint, screen printing, or the like.

Although the present specification has been described with reference to preferred embodiments of the present invention, those skilled in the art will variously modify and change the present invention within the scope not departing from the spirit and scope of the present invention described in the claims described below. You will be able to do it. Therefore, if the modified implementation basically includes the elements of the claims of the present invention, it should be seen that all are included in the technical scope of the present invention.

100: heater part
200: switch unit

Claims (9)

As a surface heating heater equipped with a contact type switch,
A heater for providing a user with a feeling of heat; And
A switch unit coupled to the heater unit and controlling an on-off operation of the heater unit,
The switch unit includes a contact type switch for controlling an on-off operation of the heater unit by contact with a part of the user's human body,
The contact type switch is a contact type switch by a capacitive sensor including a pair of electrodes formed on the surface of the electroconductive layer or exposed to the upper surface of the electroconductive layer and spaced at regular intervals,
The pair of electrodes includes a transfer electrode (Tx) and a receive electrode (Rx), and when a voltage is applied to the transfer electrode (Tx), electrical conduction between the transfer electrode (Tx) and the receive electrode (Rx) A fine current flows through the membrane, and an ammeter capable of measuring the current amount of the minute current is connected to the receive electrode Rx, and the switch unit detects a change in the amount of current measured by the ammeter to turn on the heater unit. An area heating heater, characterized in that it further comprises a control unit for controlling an on-off operation. delete delete delete The method of claim 1,
Each of the transfer electrode (Tx) and the receive electrode (Rx) is characterized in that an electrode that can be connected to a terminal is additionally provided on an upper surface of a portion disposed at an edge of the electrically conductive film. The method of claim 1,
The electrically conductive film is formed from a conductive paste containing at least one conductive particle selected from the group consisting of ITO (Indium Tin Oxide), carbon nanotubes (CNT) and silver nanowires (Ag nano wire). Fever heater. The method of claim 1,
The heater part is formed by stacking a base substrate, an electrode pattern, a heating element, and an insulating layer from the bottom,
The switch part is coupled to the upper part of the insulating layer of the heater part,
The electrode pattern includes a pair of electrodes having different polarities and spaced apart from each other,
The heating element is characterized in that the two ends each contact each of the pair of electrodes, planar heating heater. The method of claim 7,
Each of the heating elements is characterized in that disposed between the pair of electrodes of the contact switch, planar heating heater. The method according to any one of claims 1 and 5 to 8,
The heater unit, characterized in that further comprises a heat insulating material on the uppermost, planar heating heater.

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