JP2002352283A - Control panel and heating device for control panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a control panel which is provided with a countermeasure against low temperature considering the case it is used under a low temperature environment below the lower limit of the usable temperature range of electronic components for control, etc. SOLUTION: A cord-like heating body is prepared by successively coating a heating wire 11a with a thermosensitive resin layer 11c whose insulation resistance changes with temperature, a temperature detection line 11b and a resin layer 11d which can be thermally fused in the shape of concentric circles. Then a heating device is constituted by providing a space-saving planar heater 7 formed by arranging and adhering the cord-like heating body 11 in a meandering way on a rectangular metallic foil with a prescribed dimension in the vicinity of a control part 3 for the countermeasures of low temperature of the electronic component for control, etc., and providing a temperature controller 8 to control the temperature of the space-saving plane heater 7 according to the signal from the temperature detection line 11b so that the temperature of the control part 3 stays within the usable temperature range of the electronic component, etc., in the control panel 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blocking device for controlling the starting of a vehicle passing on a highway or other toll road, a gate device for a ticket gate of an outdoor game arcade, and a control panel installed outside the device. Equipped with a space-saving planar heater having a heating wire for heating the control section and a temperature detection wire, and implemented low-temperature measures when used in a low-temperature environment lower than the lower limit of the usable temperature range of control electronic components and the like. The present invention relates to a control panel and a heating device for the control panel.

[0002]

2. Description of the Related Art Conventional blocking devices which are installed on tollgate islands of expressways and other toll roads, open and close blocking bars in response to traffic instruction signals and stop instruction signals, and control the starting of vehicles passing through lanes between islands. The control panel of the gate system for ticket gates in amusement arcades is installed outdoors, but the lift facilities of ski resorts in cold regions are exposed to low-temperature environments below the lower limit of the usable temperature range of electronic components for control in winter. For example, as disclosed in Japanese Patent Application Laid-Open No. 2000-57392, the gate arm is used as a heating means for preventing icing on the rotation axis of the gate arm. An airflow guide hole is provided in the rotation shaft, and a fan heater unit that sends warm air into this airflow passage hole, or a cartridge heater is installed on the rotation shaft of the gate arm. There is a marked ones like. Further, in an industrial robot device used in a low-temperature environment lower than the lower limit of the usable temperature range of electronic components, such as in a freezer, for example,
As disclosed in Japanese Patent Application Laid-Open No. 8-323683, each heater having a special shape for heating an electronic component as a position detector provided in the vicinity of a swivel table drive motor, various arm drive motors, and the like, and within a use temperature range. Some are provided with a thermostat or thermal fuse for control.

Further, as an attempt to prevent freezing of a liquid crystal panel such as a lift control panel on a ski where the temperature is below freezing,
For example, as shown in JP-A-9-179087,
A heating element is provided below the liquid crystal panel of the control panel and heated by natural convection, air blowing by a fan, or the like, or a transparent film containing a heating wire is directly applied to the entire surface of the liquid crystal panel and directly heated. If it is below, provide a controller that turns on the heating line, raises the temperature of the front of the liquid crystal and turns off when the temperature reaches 10 ° C or more.
Or with a cover to prevent heat dissipation, the temperature of the liquid crystal panel is kept high due to the temperature rise inside the control panel during ski lift operation, so it is not energized, but when the control panel is off at the end of ski lift operation In some cases, the controller operates to maintain the temperature range of 0 to 45 ° C. at which the liquid crystal operates effectively.

[0004]

However, in the conventional control panel, a specific portion is heated, for example, as disclosed in
Japanese Patent Application Laid-Open No. 0-57392 discloses that a hole is formed in a rotating shaft, a fan heater unit is provided, a cartridge heater is buried in the rotating shaft, and Japanese Patent Application Laid-Open No. 8-323683.
Japanese Patent Application Laid-Open No. 9-179087 discloses a method of providing each heater having a special shape in the vicinity of each drive motor disclosed in Japanese Unexamined Patent Application Publication No. Hei 9-179087. It has a special configuration, and does not use a simple configuration of a planar heater that can effectively heat the control unit. .

Further, a transparent film containing a heating wire is attached to the entire surface of the liquid crystal panel disclosed in Japanese Patent Application Laid-Open No. Hei 9-179087 and directly heated, and when the liquid crystal panel is not operated, for example, 0 ° C. or lower, the heating wire is turned on. It is stated that a controller provided with a controller that raises the temperature of the liquid crystal front and turns off when the temperature reaches 10 ° C. or higher can be attached as a measure against freezing of the liquid crystal if necessary after manufacturing the control panel, It is not a countermeasure against low temperature of the control unit of the control panel, it is not a configuration provided near the control unit in a narrow control panel, and it is an effective control unit without local heating like a sheet heater having a heating line and a temperature detection line Cannot be heated. In view of this, the present invention provides a space-saving planar heater capable of increasing the heating surface and providing effective heating so that it can be provided near the control unit in a narrow control panel, and has taken a low-temperature measure as a configuration that can be attached near the control unit. It is an object to obtain a control panel and a heating device for the control panel.

[0006]

In order to solve the above-mentioned problems, a blocking device for controlling the start of a vehicle passing on an expressway or a toll road, a gate device for a ticket gate of an outdoor game arcade, and other devices such as an outdoor device. In the control panel installed in the control panel, a space-saving planar heater provided with a heating wire for low-temperature measures such as control electronic parts and a temperature detection line is provided near the control unit of the control panel, and this control is provided in the control panel. Provide a temperature controller that controls the temperature of the sheet heater based on a signal from the temperature detection line so that the temperature of the unit is within the usable temperature range of the electronic component and the like,
When the electronic components for control are used in a low temperature environment below the lower limit of the usable temperature range, the temperature controller can use the electronic components for control based on the signal from the temperature detection line of the sheet heater. The heating wire was energized to control the temperature of the planar heater so as to keep the temperature within the temperature range, and the surface near the control unit corresponding to the planar heater was efficiently heated.

[0007] In the sheet heater, a heating wire and a temperature detection wire are provided via a heat-sensitive resin layer whose insulation resistance changes according to the temperature. If the heating element is arranged in a meandering manner on a rectangular metal foil having a predetermined size and adhered thereto, and further, an adhesive layer is provided on the cord-shaped heating element and the surface of the metal foil on the cord-shaped heating element side, a temperature controller Based on the signal from the temperature detection line provided through the heat-sensitive resin layer of the sheet heater, power is supplied to the heating wire to cause the cord-shaped heating element to generate heat and control the temperature of the sheet heater. Good, heat is transmitted to the entire surface of the planar heater, and local abnormal heating of any part of the heating wire can be detected by the temperature detection line, so that abnormalities such as local heating do not occur, and the metal foil has a low thermal emissivity So metal foil table From heat radiation into the air is small.

Further, when the adhesive layer of the sheet heater is attached to the side surface of the chassis of the control section of the control panel, the heat can be satisfactorily conducted from the metal foil whose entire surface is heated by the cord-shaped heating element to the side surface of the chassis. Thus, the control unit and the vicinity of the control unit can be efficiently heated. In addition, a heat sink is provided on the side of the cabinet near the control unit of the control panel via a heat insulating piece so as to maintain a space between the cabinet and the cabinet,
When the adhesive layer of the sheet heater is attached to the cabinet side of the heat sink, the heat is satisfactorily conducted to the heat sink from the metal foil whose entire surface is heated by the cord-shaped heating element, and the heat sink is heated. By dissipating heat in the vicinity of the control unit, the vicinity of the control unit can be efficiently heated.

[0009] Alternatively, the sheet heater has a heating wire and a temperature detecting wire provided via a heat-sensitive resin layer whose insulation resistance changes depending on the temperature, and has a resin layer which can be thermally fused to the outer shell thereof. The cord-shaped heating element is arranged and bonded in a meandering manner on a rectangular heat dissipation layer of a predetermined size having a high heat emissivity, and a heat insulation layer is further adhered to the cord-shaped heating element and the surface of the heat dissipation layer on the cord-shaped heating element side. However, if an adhesive layer is provided on the side of the heat-insulating layer opposite to the heat-dissipating layer, the temperature controller energizes the heat-generating wires based on the signal from the temperature detection wire provided through the heat-sensitive resin layer of the sheet heater. The temperature of the sheet heater is controlled by causing the cord-shaped heating element to generate heat. However, since the heat insulation layer has low thermal conductivity and heat is hardly transmitted from the heat insulation layer to the back surface, this surface is placed on the side of the cabinet near the control section of the control panel. The adhesive layer on the heat insulating layer side of the heater If, without heating the cabinet difficult to heat is transmitted cabinet unnecessarily, thermal emissivity is high heat dissipation layer radiates heat from the code-like heating element for heating the vicinity of the control unit efficiently.

A heating wire and a temperature detecting wire are provided via a heat-sensitive resin layer whose insulation resistance changes according to the temperature, and the outer shell is covered with a heat-fusible resin layer to form a cord-shaped heating element, This cord-shaped heating element is arranged in a meandering shape and adhered to a rectangular metal foil of a predetermined size, which is good and has a low heat emissivity, and further attached to the surface of the cord-shaped heating element and the metal foil on the cord-shaped heating element side. An adhesive layer is provided, and a sheet heater is formed by covering the anti-metal foil side surface of the adhesive layer with release paper, and the sheet heater is controlled based on a signal from the temperature detection line so as to be within a usable temperature range of an electronic component or the like. If a temperature controller for controlling the temperature of the sheet heater is connected to make a heating device for the control panel,
For a control panel or the like in which the release paper on the anti-metal foil side of the sheet heater is peeled off and the adhesive layer is installed outdoors, or a control panel or the like which has a heating device for the control panel but has insufficient heating capacity By attaching the control panel to a side panel near the control section, the temperature controller can control the electronic components for control when the electronic components for control are used in a low-temperature environment lower than the lower limit of the usable temperature range. The area around the control section can be heated by controlling the temperature of the sheet heater so that it stays within the usable temperature range.However, the metal foil has good heat conduction and heat is transmitted to the entire surface of the sheet heater so that abnormalities such as local heating do not occur further. Since the metal foil has a low thermal emissivity, there is little heat radiation from the surface of the metal foil into the air, so that the side plate and the like near the control unit can be more efficiently heated.

Alternatively, the heating wire and the temperature detection wire are provided via a heat-sensitive resin layer whose insulation resistance changes according to the temperature.
A cord-like heating element having a heat-fusible resin layer on these outer shells is arranged in a meandering manner on a rectangular heat dissipation layer having a high heat emissivity and a predetermined size, and is adhered to the cord-like heating element. A heat insulating layer is adhered to the surface of the heat radiating layer on the cord-shaped heating element side, an adhesive layer is provided on the side of the heat insulating layer opposite to the heat radiating layer, and the surface of the adhesive layer opposite to the heat radiating layer is covered with release paper to form a sheet heater. If a heating device for a control panel is connected by connecting a temperature controller that controls the temperature of the sheet heater based on the signal from the temperature detection line so that it is within the usable temperature range of parts etc., the anti-metal foil of the sheet heater Control panel, etc. where the release paper on the side is peeled off and the adhesive layer is installed outdoors, or the side of the cabinet near the control unit such as a control panel with a heating device for the control panel but with insufficient heating capacity Control panel, etc. installed outdoors for control When the sub-parts are used in a low temperature environment lower than the lower limit of the usable temperature range, the temperature controller generates heat based on the signal from the temperature detection line provided through the heat-sensitive resin layer of the sheet heater. To control the temperature of the sheet heater to keep the electronic parts for control etc. within the usable temperature range and heat the vicinity of the control part, but the heat insulation layer has low thermal conductivity. Heat is hardly transmitted from the heat insulating layer to the back surface, so heat is hardly transmitted to the cabinet and the heat radiation layer with high heat emissivity radiates heat from the cord-shaped heating element without heating the cabinet unnecessarily, near the control unit Can be efficiently heated.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. 1, 2, 3, 4, 5, and 6. FIG. FIG. 1 is a front view of a control panel showing one embodiment of the present invention, FIG. 2 is a front view of a control panel showing another embodiment, and FIG. 3 is a front view of a control panel showing another embodiment. FIG. 4 is a plan view (corresponding to a side view in the direction of arrow A in FIGS. 1 to 3) of a heating device for a control panel according to the present invention, and FIG. FIG. 6 is a partial cross-sectional view illustrating a configuration of a heating device, and FIG. 6 is a partial cross-sectional view illustrating a configuration of a heating device for a control panel according to another embodiment.

In FIG. 1, reference numeral 1 denotes a control panel comprising a cabinet 2 and a control unit 3 and the like, which is a blocking device for controlling the start of vehicles passing on an expressway or a toll road, a gate device for a ticket gate of an outdoor game hall, and the like. It is installed outdoors, such as in shop equipment. Generally, the control unit 3 is mounted on a chassis 4 and has a space-saving planar heater provided with a heating wire 11a and a temperature detection wire 11b for controlling low-temperature, such as electronic components for control, near the control unit 3 of the control panel 1. 7 or 70, and the temperature detection line 11 is provided in the control panel 1 such that the temperature of the control unit 3 is within the usable temperature range of electronic components and the like (for example, 5 to 55 ° C.).
b. a temperature controller 8 for controlling the temperature of the sheet heater 7 based on a signal from
Was provided.

FIG. 1 shows a chassis 4 near the control unit 3.
An example in which a sheet heater 7 is attached to the folded portion 4a on the side surface is shown. Heat is conducted from the sheet heater 7 to the side surface of the chassis 4 to heat the chassis 4, and the control unit 3 and the vicinity of the control unit 3 are efficiently heated. You can do it. FIG. 2 shows, for example, an aluminum plate or a steel plate having a thickness of 0.5 to 2.0 mm via a heat insulating piece 6 of an insulator so as to hold a space G between the cabinet 2 and the cabinet 2 on the side of the cabinet 2 near the control unit 3. An example in which a heat radiating plate 5 whose surface is black heat-resistant paint or a roughened surface is provided so as to increase the heat emissivity, and a planar heater 7 is attached to the cabinet 2 side of the heat radiating plate 5 is shown. The radiator plate 5 is heated by the heater 7 and radiated from the radiator plate 5 to the vicinity of the control unit 3, so that the vicinity of the control unit 3 can be efficiently heated. FIG. 3 shows an example in which a planar heater 70 is attached to the side surface of the cabinet 2 near the control unit 3 with a heat insulating layer 15 interposed therebetween, and the heat is hardly transmitted to the cabinet by the heat insulating layer 15 to heat the cabinet 2 unnecessarily. In addition, the heat from the planar heater 70 can be efficiently heated in the vicinity of the control unit 3.

FIG. 4 is a plan view (corresponding to a side view in the direction of arrow A in FIGS. 1 to 3) of a heating device for a control panel provided with a temperature controller 8 and a temperature adjusting means 9 in the sheet heaters 7 and 70. In the sheet heater 7, a cord-shaped heating element 11 having a heating wire 11a and a temperature detection wire 11b is connected to a rectangular metal foil 1 having a predetermined size.
The heating device, which is an assembly of the planar heater 7, has a configuration in which the cord-shaped heating element 11 side of the metal foil 10 is covered with a release paper 13 via an adhesive layer 12, In the sheet heater 70, the cord-shaped heating element 11 is also used.
Are bonded in a meandering manner to a rectangular heat radiation layer 14 of a predetermined size, and a heat insulation layer 15 is adhered to the heat radiation layer 14 with an adhesive layer 12. The layer 15 is covered with a release paper 13 via an adhesive layer 12, and the heating line 11 a and the temperature detection line 11 b are connected to a temperature controller 8 that controls the temperature under the conditions set by the temperature adjusting means 9.

FIG. 5 is a partial cross-sectional side view showing the structure of the planar heater 7, and includes a heating line 11a and a temperature detecting line 11b.
Are provided via a heat-sensitive resin layer 11c made of, for example, nylon, whose insulation resistance changes depending on the temperature, and a cord-shaped heating element having a resin layer 11c made of, for example, vinyl chloride or polyethylene, which can be heat-sealed around these layers. 11 is arranged in a meandering manner and adhered to a rectangular metal foil 10 of aluminum having a thickness of, for example, 20 to 200 μm and adhered to the cord-shaped heating element 11 and the metal foil 10 on the side of the cord-shaped heating element 11. The adhesive layer 12 is provided on the surface, and the side of the metal foil 10 opposite to the adhesive layer 12 is covered with a release paper 13.

With the above configuration, the control panel 1 installed outdoors or the chassis 2 of the control section 3 such as the control panel 1 having a heating device for the control panel 1 but having insufficient heating capacity.
When the release paper 13 of the sheet heater 7 is peeled off and the adhesive layer 12 is additionally attached to the side surface of the sheet heater 7, the temperature controller 8 is connected to a temperature detection line provided through the heat-sensitive resin layer 11 c of the sheet heater 7. Based on the signal from 11b, the heating wire 11a is energized to cause the cord-shaped heating element 11 to generate heat and control the temperature of the sheet heater 7, and the metal foil 10 has good heat conduction and heat is transmitted to the entire surface of the sheet heater 7. Abnormalities such as local heating do not occur any more, and the metal foil 10 has a low thermal emissivity, so that heat radiation from the surface of the metal foil 10 to the air is small. In addition, a space G is provided between the cabinet 2 and the cabinet 2 on the side of the cabinet 2 such as the control panel 1 installed outdoors or a heating device for the control panel, but having insufficient heating capacity. When the heat radiating plate 5 is provided via the heat insulating piece 6, and the adhesive layer 12 of the sheet heater 7 is additionally attached to the cabinet 2 side of the heat radiating plate 5, the entire surface is heated by the cord-shaped heating element 11. By satisfactorily conducting heat from the metal foil 10 to the heat radiating plate 5 to heat the heat radiating plate 5 and radiating heat from the heat radiating plate 5 to the vicinity of the control unit 3, the vicinity of the control unit 3 can be efficiently heated.

Alternatively, the planar heater 70 is provided with a heating wire 1
1a and a temperature detection line 11b are provided via a heat-sensitive resin layer 11c whose insulation resistance changes according to the temperature. In order to increase the efficiency, the surface is arranged in a meandering shape and adhered to a rectangular heat dissipation layer 14 of a predetermined size, such as a heat-resistant black paint or a roughened aluminum foil. A heat-insulating layer 15 made of, for example, urethane foam is adhered to the surface on the side of the heating element 11, and an adhesive layer 12 is provided on a side of the heat-insulating layer 15 opposite to the heat radiation layer 14.
2, the side surface of the anti-heat radiating layer 14 is covered with the release paper 13.
In order to control the temperature of the sheet heater 70 by applying a current to the heating wire 11a to cause the cord-shaped heating element 11 to generate heat based on a signal from the temperature detection line 11b provided through the heat insulating layer 15b,
Since the heat conduction is low and heat is hardly transmitted from the heat insulating layer 15 to the back surface, the control panel 1 installed outdoors or the control panel 1 having a heating device for the control panel but having insufficient heating capacity is provided.
When the release paper 13 on the heat insulating layer 15 side of the sheet heater 70 is peeled off and the adhesive layer 12 is additionally attached to the side surface of the cabinet 2 near the control section 3 of the control panel 1 such as the cabinet 2, the cabinet 2
The heat radiation layer 14 having a high thermal emissivity radiates heat from the cord-shaped heating element 11 and heats the vicinity of the control unit 3 efficiently without unnecessarily heating the cabinet 2 without unnecessary heating.

When the control electronic parts and the like are used in a low-temperature environment having a usable temperature range of 5 to 55 ° C. and a lower limit of 5 ° C., for example, the temperature controller 8 comprises a planar heater 7 or 7
Based on the signal from the temperature detection line 11b of 0, the electronic components for control and the like are kept within the usable temperature range of 5 to 55 ° C.
The control section 3 corresponding to the planar heater 7 or 70 controls the temperature of the planar heater 7 or 70 by supplying electricity to the heating wire 11a.
Heat the nearby surface efficiently. Also, the heat-sensitive resin layer 11c
The local abnormal heating of any part of the heating wire 11a can be detected by the temperature detecting wire 11b passing through.

[0020]

The present invention is directed to a control panel installed outdoors such as a blocking device for a highway or a toll road, a gate device for a ticket gate of an outdoor game arcade, and other devices. A space-saving planar heater equipped with a heating line and a temperature detection line for low-temperature countermeasures such as components is provided, and temperature detection is performed in the control panel so that the temperature of this control unit is within the usable temperature range of electronic components etc. Since the temperature controller that controls the temperature of the sheet heater based on the signal from the line is provided, when the control electronic components and the like are used in a low-temperature environment lower than the lower limit of the usable temperature range, the temperature controller is It is possible to provide an effective control panel that controls the temperature of the planar heater by heating the heating wire and efficiently heats the vicinity of the control unit so that the control electronic components and the like are kept within the usable temperature range.

In the sheet heater, a heating wire and a temperature detecting wire are provided via a heat-sensitive resin layer whose insulation resistance changes according to the temperature, and a cord-shaped heating element having a heat-fusible resin layer on its outer surface is provided in a predetermined shape. It is arranged in a meandering manner on a rectangular metal foil of dimensions and adhered, and an adhesive layer is provided on the surface of the metal foil on the cord-shaped heating element side, so that the electronic components for control etc. are below the lower limit of the usable temperature range. When used in a low-temperature environment, control electronic components, etc. are kept within the usable temperature range, and the metal foil has good heat conduction, heat is transmitted to the entire surface of the sheet heater, and the temperature detection wire Since local abnormal heating can also be detected, abnormalities such as local heating do not occur.
Since the metal foil has a low thermal emissivity, heat from the surface of the metal foil to the air is small and a control panel that effectively heats the vicinity of the control unit can be provided.

Further, when an adhesive layer of a sheet heater is attached to the side surface of the chassis of the control section of the control panel, the heat is satisfactorily conducted from the metal foil whose entire surface is heated by the cord-shaped heating element, thereby heating the side surface of the chassis. Then, the control unit and the vicinity of the control unit can be efficiently heated, and a heat sink is provided via a heat insulating piece so as to maintain a space between the cabinet and the cabinet on the side of the cabinet near the control unit of the control panel, Even if the adhesive layer of the sheet heater is attached to the cabinet side of the heat sink, the heat is radiated from the heat sink by conducting good heat from the metal foil whose entire surface is heated by the cord-shaped heating element. Thus, a control panel capable of efficiently heating the vicinity of the control unit can be provided.

Alternatively, in the sheet heater, a heating wire and a temperature detection wire are provided via a heat-sensitive resin layer whose insulation resistance changes according to temperature, and a cord-shaped heating element having a heat-fusible resin layer on the outer shell is provided. , Is arranged in a meandering shape and adheres to a rectangular heat radiation layer with a high heat emissivity and a predetermined size.Furthermore, a heat insulation layer is adhered to the surface of the heat radiation layer on the cord-shaped heating element side, and adheres to the side of the heat insulation layer opposite to the heat radiation layer. When a pressure-sensitive adhesive layer on the side of the heat-insulating layer of the sheet heater is attached to the side of the cabinet near the control section of the control panel, the temperature controller is controlled by the temperature provided via the heat-sensitive resin layer of the sheet heater. Based on the signal from the detection wire, the heating wire is energized to cause the cord-shaped heating element to generate heat and control the temperature of the sheet heater.The heat insulation layer has a low thermal conductivity and heat is hardly transmitted from the heat insulation layer to the back, so the cabinet The heat is not easily transmitted and the cabinet is indispensable. Without heating, the heat radiation rate is high heat dissipation layer radiates heat from the code-like heating element, the control unit near the efficient control panel can provide heating.

On the other hand, a heating wire and a temperature detection wire are provided via a heat-sensitive resin layer whose insulation resistance varies according to temperature, and the outer shell is covered with a heat-fusible resin layer to form a cord-like heating element.
Good heat conduction, low heat emissivity, a cord-shaped heating element is arranged in a meandering manner on a rectangular metal foil of a predetermined size and bonded,
Further, an adhesive layer is provided on the surface of the metal foil on the cord-like heating element side, and the adhesive layer is covered with release paper on the side opposite to the metal foil to form a sheet heater, so that the sheet heater is within the usable temperature range of electronic components and the like. If a temperature controller that controls the temperature of the sheet heater based on the signal from the temperature detection line is connected to form a heating device for the control panel, the release paper on the anti-metal foil side of the sheet heater is peeled off to form an adhesive layer. The control panel can be used for control by attaching it to a side panel near the control unit, such as a control panel installed outdoors or a heating device for the control panel, but having a heating capacity that is insufficient. When electronic components are used in a low temperature environment lower than the lower limit of the usable temperature range, the temperature controller controls and controls the temperature of the sheet heater to keep the control electronic components etc. within the usable temperature range. Area can be heated, but the metal foil has good heat conduction Heat is transferred to the whole surface of the heater, and abnormalities such as local heating do not occur further. Since the metal foil has a low thermal emissivity, there is little heat radiation from the surface of the metal foil to the air, and the side plate near the control unit is more efficient. It is possible to provide a heating device for a control panel that can heat well.

Alternatively, the heat generation line and the temperature detection line are provided via a heat sensitive tree layer in which the insulation resistance changes according to the temperature.
A cord-like heating element having a heat-fusible resin layer on these outer shells is arranged in a meandering manner on a rectangular heat dissipation layer having a high heat emissivity and a predetermined size, and is adhered to the cord-like heating element. A heat insulating layer is adhered to the surface of the heat radiating layer on the cord-shaped heating element side, an adhesive layer is provided on the side of the heat insulating layer opposite to the heat radiating layer, and the surface of the adhesive layer opposite to the heat radiating layer is covered with release paper to form a sheet heater. If a heating device for a control panel is connected by connecting a temperature controller that controls the temperature of the sheet heater based on the signal from the temperature detection line so that it is within the usable temperature range of parts etc., the anti-metal foil of the sheet heater Control panel, etc. where the release paper on the side is peeled off and the adhesive layer is installed outdoors, or the side of the cabinet near the control unit such as a control panel with a heating device for the control panel but with insufficient heating capacity Control panel, etc. installed outdoors for control When the sub-parts are used in a low temperature environment lower than the lower limit of the usable temperature range, the temperature controller generates heat based on the signal from the temperature detection line provided through the heat-sensitive resin layer of the sheet heater. To control the temperature of the sheet heater to keep the electronic parts for control etc. within the usable temperature range and heat the vicinity of the control part, but the heat insulation layer has low thermal conductivity. Heat is hardly transmitted from the heat insulating layer to the back surface, so heat is hardly transmitted to the cabinet and the heat radiation layer with high heat emissivity radiates heat from the cord-shaped heating element without heating the cabinet unnecessarily, near the control unit Can be provided for a control panel capable of efficiently heating the control panel.

[Brief description of the drawings]

FIG. 1 is a front view of a control panel showing one embodiment of the present invention.

FIG. 2 is a front view of a control panel showing another embodiment.

FIG. 3 is a front view of a control panel showing another embodiment.

FIG. 4 is a plan view of a heating device for a control panel of the present invention (FIGS.
4 (equivalent to a side view in the direction of arrow A in FIG. 3).

FIG. 5 is a partial cross-sectional view of a heating device for a control panel according to one embodiment.

FIG. 6 is a partial cross-sectional view of a heating device for a control panel according to another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Control board 2 Cabinet 3 Control part 4 Chassis 5 Heat sink 6 Insulating piece 7, 70 Surface heater 8 Temperature controller 11 Cord-shaped heating element 11a Heating wire 11b Temperature detection wire 11c Thermosensitive resin layer 12 Adhesive layer 13 Release paper 14 Heat dissipation Layer 15 Insulation layer

Claims (8)

[Claims] 1. A control panel installed outdoors, such as a blocking device for starting control of a vehicle passing on a highway or a toll road, a gate device for a ticket gate of an outdoor game arcade, and other devices. A space-saving planar heater equipped with a heating wire and a temperature detection wire for countermeasures against low temperature of electronic components for control etc. is provided near the unit, and the temperature of this control unit in the control panel is within the usable temperature range of electronic components etc. A temperature controller for controlling the temperature of the sheet heater based on a signal from the temperature detection line so that the temperature is within the low temperature environment where the electronic components for control and the like are less than the lower limit of the usable temperature range. A control panel wherein the temperature of a planar heater is controlled so as to keep the electronic parts for control and the like within a usable temperature range, thereby heating the vicinity of the control unit. 2. The planar heater has a heating wire and a temperature detection wire provided via a heat-sensitive resin layer whose insulation resistance changes according to the temperature, and has a resin layer capable of being heat-sealed around the outer periphery thereof. The cord-shaped heating element is arranged in a meandering shape and adhered to a rectangular metal foil of a predetermined size, which has good heat conduction and a low thermal emissivity, and is further bonded to the cord-shaped heating element side of the cord-shaped heating element and the metal foil. 2. The control panel according to claim 1, wherein an adhesive layer is provided on the surface and the panel can be attached. 3. The control unit of the control panel, wherein the planar heater is attached to a side surface of a chassis of the control unit, and the side surface of the chassis is heated to efficiently heat the vicinity of the control unit. Control panel as described. 4. A heat sink is provided on a side surface of the cabinet near a control section of the control panel via a heat insulating piece so as to maintain a space between the cabinet and the cabinet, and the sheet heater is attached to the cabinet side of the heat sink. 3. The control panel according to claim 2, wherein the vicinity of the control section is efficiently heated by heating and radiating the heat radiation plate. 5. The planar heater has a heating wire and a temperature detection wire provided via a heat-sensitive resin layer whose insulation resistance changes according to temperature, and has a resin layer which can be heat-sealed on the outer periphery thereof. The cord-shaped heating element is arranged in a meandering manner on a rectangular heat dissipation layer having a high heat emissivity and a predetermined size and adhered. Further, a heat insulating layer is provided on the cord-shaped heating element and the surface of the heat dissipation layer on the cord-shaped heating element side. The control panel according to claim 1, wherein the control panel is configured to be adhered and provided with an adhesive layer provided on a side of the heat insulating layer opposite to the heat radiation layer. 6. The control unit of the control panel, wherein the planar heater is attached to a side surface of a cabinet near a control unit via a heat insulating layer, and the control unit is efficiently heated in the vicinity of the control unit by a space-saving planar heater. Item 1 is the control panel described in 5. 7. A heat-generating wire and a temperature-detecting wire are provided via a heat-sensitive resin layer whose insulation resistance varies according to temperature, and their outer shells are covered with a heat-fusible resin layer to form a cord-like heating element. This cord-shaped heating element is arranged in a meandering shape and adhered to a rectangular metal foil of a predetermined size, which has good heat conduction and a low heat emissivity, and furthermore, the cord-shaped heating element and the metal foil on the cord-shaped heating element side. Provide an adhesive layer on the surface, cover the adhesive layer on the side opposite to the metal foil with a release paper to form a planar heater, and based on a signal from the temperature detection line so as to be within the usable temperature range of electronic components etc. A temperature controller for controlling the temperature of the heater shall be provided, and the release sheet on the anti-metal foil side of the sheet heater is peeled off to form a pressure-sensitive adhesive layer on a side plate near a control section of a control panel installed outdoors. By sticking, the temperature controller can be used for controlling electronic components etc. When used in a low-temperature environment below the lower limit of the usable temperature range, the temperature of the sheet heater can be controlled so as to keep the electronic components for control etc. within the usable temperature range, and the vicinity of the control unit can be heated. A heating device for a control panel, comprising: 8. A cord-shaped heating element having a heat-generating wire and a temperature-detecting wire interposed through a heat-sensitive resin layer whose insulation resistance varies depending on temperature, and having a heat-fusible resin layer on the outer surface thereof, A high heat emissivity, a meandering arrangement and adhesion to a rectangular heat dissipation layer of a predetermined dimension, and a heat insulation layer is further adhered to the cord-shaped heating element and a surface of the heat dissipation layer on the cord-shaped heating element side. An adhesive layer is provided on the side of the anti-heat radiation layer, and the side of the anti-heat radiation layer of the adhesive layer is covered with release paper to form a sheet heater, based on a signal from the temperature detection line so as to be within a usable temperature range of electronic components and the like. A temperature controller for controlling the temperature of the sheet heater is provided, and the release paper on the opposite side of the sheet heater from the heat radiation side is peeled off, and the adhesive layer is installed outdoors. By sticking on the side, the temperature controller controls When the electronic components for use in a low-temperature environment lower than the lower limit of the usable temperature range, the temperature of the sheet heater is controlled so that the electronic components for control etc. are kept within the usable temperature range, and the vicinity of the control unit is controlled. 5. The heating device for a control panel according to claim 4, wherein the heating device is configured to heat.