JP2006040550A - Electric floor heating system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric floor heating system capable of raising temperature of a floor surface up to a given level in a short time after starting of floor heating, even in case a breaker with enough interrupting current can not be installed. <P>SOLUTION: The system is provided with a plurality of floor heating panels 11 with linear heaters built in, to be laid on a floor heating area A, and a controller 20 carrying out an ON/OFF control of electricity to the linear heaters of each floor heating panel 11, in which, a power supply input terminal 21 of the controller 20 is connected with an alternating current power supply 40 through a breaker 30. Two terminal conduction circuits 10a, 10b with the linear heaters connected of the floor heating panels 11 laid in the floor heating area A are connected to control output terminals 22a, 22b of the controller 20, and a conduction timing to each terminal conduction circuit 10a, 10b is staggered from each other so as to prevent the controller 20 from supplying current to the both terminal conduction circuits 10a, 10b simultaneously. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an electric floor heating system that performs floor heating using a plurality of floor heating panels with built-in wire heaters.

  An example of this type of electric floor heating system is shown in FIG. As shown in the figure, the electric floor heating system 50 includes a plurality of floor heating panels 51 that are installed in the floor heating area A and have built-in line heaters, and line heaters that are built in the floor heating panel 51. And a controller 52 for ON / OFF control of energization of the controller 52. A power input terminal 52b of the controller 52 is connected to an AC power supply 55 via a breaker 54, and a control output terminal 52a of the controller 52 is connected to a control output terminal 52a. The terminal energization circuit 53 to which the line heater of each floor heating panel 51 is connected is connected.

  The power consumption of the line heater built in the floor heating panel 51 is set so that the current value of the terminal energization circuit 53 to which the line heater of each floor heating panel 51 is connected is lower than the breaking current of the breaker 54. When energized, the line heaters of all the floor heating panels 51 are energized.

JP 2002-162049 A

  By the way, in the electric floor heating system 50 described above in which the line heaters of all the floor heating panels 51 are energized simultaneously, the power consumption of the line heaters built in each floor heating panel 51 is laid on the floor heating panel 51. Since the power consumption determined by the number of sheets and the breaking current of the breaker 54 cannot be set, for example, when a breaker having a sufficiently large breaking current cannot be installed, each floor heating panel 51 is built in. There is a problem that the power consumption of the line heater, that is, the heating capacity is inevitably reduced, and it takes time for the floor surface temperature to rise to a predetermined temperature from the time when the floor heating is started.

  Thus, the problem of the present invention is to raise the floor surface temperature to a predetermined temperature in a short time from the start of floor heating even when a breaker having a sufficiently large breaking current cannot be installed. It is to provide an electric floor heating system that can.

  In order to solve the above-described problems, the invention according to claim 1 is configured to turn on energization of a plurality of floor heating panels laid in a floor heating area and incorporating a line heater, and the line heater of the floor heating panel. In the electric floor heating system comprising a controller for controlling / OFF, the terminal energization circuit connected to the breaker via the controller and connected to the line heater of the floor heating panel is divided into a plurality of parts, and the controller However, the present invention provides an electric floor heating system in which the energization timing for each terminal energization circuit is shifted so that the plurality of terminal energization circuits are not energized simultaneously.

  According to a second aspect of the present invention, in the electric floor heating system according to the first aspect of the present invention, the controller is intermittently connected to the terminal energization circuit based on an energization time set for a predetermined control cycle. The power was turned on.

  The invention according to claim 3 is the electric floor heating system of the invention according to claim 2, wherein the energization time is an initial energization time applied until a predetermined time elapses from the start of operation, It is constituted by a steady energization time applied after a predetermined time has elapsed from the start of operation.

  As described above, in the electric floor heating system according to the first aspect of the present invention, the terminal energization circuit to which the line heater of the floor heating panel is connected is divided into a plurality, and the controller simultaneously applies to the plurality of terminal energization circuits. Since the energization timing for each terminal energization circuit is shifted so as not to energize, the allowable current value of each terminal energization circuit can be increased to the vicinity of the breaking current value of the breaker.

  As a result, the power consumption of the line heaters connected to the respective terminal energization circuits, that is, the heating capacity, is compared to the electric floor heating system in which the line heaters of all floor heating panels are energized simultaneously. Therefore, even if it is not possible to install a breaker with a sufficiently large breaking current, the floor surface temperature can be raised to a predetermined temperature in a short time from the start of floor heating. it can.

  In the electric floor heating system of the invention according to claim 2, it is not necessary to perform unnecessary energization by appropriately selecting the energization time according to the set operating temperature and the area of the floor heating panel, and the power consumption Can be reduced. In addition, when a relay for turning ON / OFF the energization of the terminal energization circuit is mounted on the controller, the number of times the relay contact is opened and closed is suppressed, so that an effect of extending the life of the relay can be obtained.

  Moreover, in the electric floor heating system of the invention according to claim 3, since the initial energization time and the steady energization time can be set individually, by setting each time to an appropriate value, After the heating operation is started, the surface temperature of the floor heating panel can be raised to the operating temperature in a short time, and after the surface temperature of the floor heating panel is increased to the operating temperature, the temperature is stabilized at the operating temperature. Can be held.

  Hereinafter, embodiments will be described with reference to the drawings. As shown in FIG. 1, this electric floor heating system 1 includes a plurality of floor heating panels 11 that are installed in a floor heating area A and have built-in line heaters, and line heaters that are built in each floor heating panel 11. And a power supply input terminal 21 of the controller 20 is connected to an AC power supply 40 via a breaker 30.

  The terminal energization circuit connected to the breaker 30 via the controller 20 includes a terminal energization circuit 10a to which the line heater of the floor heating panel 11 laid in a half area of the floor heating area A is connected, and the floor heating area A. Are divided into a terminal energization circuit 10b connected to the line heater of the floor heating panel 11 laid in the remaining half of the area, and the terminal energization circuits 10a and 10b are respectively connected to the control output terminals 22a and 22b of the controller 20. It is connected.

  As shown in FIG. 2, the controller 20 includes a temperature setting button 23 for setting a use temperature, relays 24a and 24b for turning on / off the energization of the terminal energization circuits 10a and 10b, and as shown in Table 1. ROM 25 for storing the energization time to the terminal energization circuits 10a and 10b set for each operating temperature, a timer 26 for measuring the control period (for example, 6 minutes) and the energization time to the terminal energization circuits 10a and 10b, In accordance with the operating temperature set by the temperature setting button 23, the CPU 27 reads out the energization time from the ROM 25 to the terminal energization circuits 10a and 10b and controls the operation of the relays 24a and 24b based on this.

  The energization time to the terminal energization circuits 10a and 10b stored in the ROM 25 is set as an energization time for a predetermined control cycle (for example, 6 minutes). As shown in FIG. When the energization time (ON time) to the energization circuits 10a and 10b is shortened, the non-energization time (OFF time) is conversely increased.

  Further, as shown in Table 1, the energization time to the terminal energization circuits 10a and 10b stored in the ROM 25 is the initial energization time applied until 30 minutes have elapsed from the start of operation, and 30 minutes have elapsed. As shown in FIG. 4 (a), the initial energization time is 180 seconds regardless of the operating temperature, but the steady energization time is shown in FIG. As shown in (), it changes from 180 seconds to 90 seconds depending on the operating temperature. Therefore, in this electric floor heating system 1, the energization time (initial energization time) for 30 minutes immediately after the start of operation does not become shorter than the energization time after 30 minutes (steady energization time).

  Further, as shown in FIGS. 5A and 5B, the CPU 27 starts the terminal energization circuit from a time point delayed by 1/2 (180 seconds) of the control cycle from the time point when the energization start of the terminal energization circuit 10a is started. Energization to 10b is started, and both the terminal energization circuit 10a and the terminal energization circuit 10b are not energized simultaneously. In addition, the figure (a) has shown the state for 30 minutes immediately after a driving | operation start, and the figure (b) has shown the state after 30-minute progress.

  In the electric floor heating system 1 configured as described above, the terminal energization circuit that supplies power to the wire heater of the floor heating panel 11 is divided into two terminal energization circuits 10a and 10b, and the controller 20 Since the energization timing for each terminal energization circuit 10a, 10b is shifted so as not to energize the terminal energization circuits 10a, 10b simultaneously, the allowable current value of each terminal energization circuit 10a, 10b It becomes possible to increase it to near the current value. Therefore, in this electric floor heating system 1, it is connected to each terminal energization circuit 10a, 10b compared with the electric floor heating system which supplies electricity to the line heater of all the floor heating panels simultaneously. Since the power consumption of the wire heater, that is, the heating capacity, can be increased, even if it is not possible to install a breaker with a sufficiently large breaking current, the floor heating can be performed in a short time from the start of floor heating. The floor surface temperature of the floor can be raised to a predetermined temperature.

  The graph shown in FIG. 6 shows that a floor heating floor is formed by laying 20 floor heating panels with built-in line heaters with power consumption of 34.5 W, and the line heaters of all floor heating panels are connected 1 When floor heating is performed by 100% energization (continuous energization) of two terminal energization circuits, and floor heating floors are installed by laying 20 floor heating panels with 69W of wire heaters with double power consumption. Floor temperature when floor heating is performed by energizing 50% (alternate energization) so that two terminal energization circuits respectively connected to the line heaters of 10 floor heating panels are not energized simultaneously The time change of is shown. In this graph, T0 is the time when floor heating is started, T1 is the time when the floor surface temperature reaches 30 ° C. when 69 W is 50% energized, and T2 is the floor surface temperature is 30 ° C. when 34.5 W is 100% energized. Indicates the point of time when In the case of 50% energization, the control cycle is 6 minutes, and the initial energization time and the steady energization time are 180 seconds.

  As can be seen from this graph, in the case of 69 W 50% energization, the floor surface temperature has reached 30 ° C. after about 10 minutes have passed since the start of floor heating, but in the case of 34.5 W 100% energization, It takes about 15 minutes for the floor surface temperature to reach 30 ° C after the start of floor heating. Compared with 34.5W100% energization, 69W50% energization raises the temperature to 30 ° C by about 5 minutes earlier. be able to.

  In the above-described embodiment, the terminal energization circuit is divided into two. However, the present invention is not limited to this, and the terminal energization circuit can be divided into three or more. Since the allowable current value of the terminal energization circuit can be further increased, a floor heating panel having a built-in line heater with higher power consumption can be used.

  For example, when the terminal energization circuit is divided into three, assuming that the control cycle is 6 minutes, the initial energization time to each terminal energization circuit is set to 120 seconds, and as shown in FIG. The energization timing of each terminal energization circuit X, Y, Z may be shifted every 120 seconds so that the terminal energization circuits X, Y, Z are not energized simultaneously.

It is a schematic structure figure showing one embodiment of an electric floor heating system concerning this invention. It is a block diagram which shows the controller currently used for the electric floor heating system same as the above. It is a figure which shows the relationship between the electricity supply time for every use temperature which can be set with a controller same as the above, and a control cycle. (A) is a timing chart showing an energization operation to each terminal energization circuit for 30 minutes immediately after the start of operation, and (b) is a timing chart showing an energization operation to each terminal energization circuit after 30 minutes have elapsed. (A) is a timing chart showing energization operation to both terminal energization circuits for 30 minutes immediately after the start of operation, and (b) is a timing chart showing energization operation to both terminal energization circuits after 30 minutes have elapsed. It is a graph which shows the time change of each floor surface temperature about an electric floor heating system same as the above and the conventional electric floor heating system. It is a timing chart which shows the electricity supply operation | movement for 30 minutes immediately after the driving | operation start in other embodiment. It is a schematic block diagram which shows the conventional electric floor heating system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electric floor heating system 10a, 10b Terminal energization circuit 11 Floor heating panel 20 Controller 21 Power supply input terminal 22a, 22b Control output terminal 23 Temperature setting button 24a, 24b Relay 25 ROM
26 Timer 27 CPU
30 Breaker 40 AC power source A Floor heating area

Claims (3)

A plurality of floor heating panels with built-in wire heaters laid in the floor heating area;
In an electric floor heating system comprising a controller for ON / OFF control of energization to the line heater of the floor heating panel,
The terminal energization circuit connected to the line heater of the floor heating panel connected to the breaker via the controller is divided into a plurality of parts,
The electric floor heating system characterized by shifting the energization timing with respect to each terminal energization circuit so that the controller may not energize a plurality of the terminal energization circuits simultaneously.   The electric floor heating system according to claim 1, wherein the controller intermittently energizes the terminal energization circuit based on an energization time set for a predetermined control cycle.   The energization time is composed of an initial energization time applied after a predetermined time elapses from the start of operation and a steady energization time applied after a predetermined time elapses from the operation start time. 2. The electric floor heating system according to 2.

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