JPH08261489A - Floor heating device - Google Patents

Abstract

PURPOSE: To enable a wiring inspection to be carried out in a short period of time by a method wherein a heater placed in a heating zone for performing an inspection of wiring is electrically energized for a specified period of time, a variation in temperature of the heating zone is detected and a good or a bad state of the wiring inspection is judged for the heating zone on the basis of the detected temperature variation. CONSTITUTION: When a wiring mode is set, an electrical energization is carried out for a specified period of time (for example, 5 minutes) to heaters A to HC in specified heating zones A to C, a temperature variation in each of the heating zones A to C is detected on the basis of an output of each of temperature sensors SA to SC. Then, a good state or a bad state of each of the specified heating zones A to C is judged on the basis of the detected result. Accordingly, it is satisfactory to set an electrical energization time to 5 minutes for the heaters HA to HC for inspecting the wiring of one of the heating zones A to C. Due to this fact, a time required for performing an inspection of wirings in each of the all heating zones A, B and C requires 15 minutes. With such an arrangement as above, it is possible to shorten the operating time for the inspection of the wiring.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor heating apparatus which is divided into a plurality of heating zones and which selects a heating zone requiring floor heating to perform a floor heating operation.

[0002]

2. Description of the Related Art The above-mentioned floor heating device is arranged in each heating zone, and a plurality of heaters for radiating heat from the floor surface of each heating zone for heating are provided in each heating zone. A plurality of temperature detecting elements for detecting the floor heating temperature of each heating zone, each heater is connected with an individual control line, and each temperature detecting element is connected with an individual temperature detecting line. And a controller that individually controls energization to each heater so that the detected temperature of 1 is close to the set temperature of each heating zone.

For such a floor heating system, after connecting the control line and the temperature detection line to the controller, the control line and the temperature detection line connected to the controller respectively correspond to the heater and the temperature detection element of each heating zone. It is necessary to perform a so-called wiring inspection to confirm whether the connections are correct. Conventionally, when performing the above wiring inspection, the heaters are sequentially energized, and the inspection worker actually touches the floor surface of each heating zone by hand to raise the temperature of the floor surface of each heating zone. I was checking whether or not.

[0004]

However, the following problems have been pointed out in the conventional wiring inspection method. That is, in order for the inspection worker to confirm that the temperature of the floor surface of the heating zone has risen, a considerably large temperature change must occur on the floor surface of the heating zone. therefore,
It is necessary to energize the heater continuously for a long time to some extent. Therefore, it takes a long time to perform the wiring inspection of all heating zones (for example, when the heating zones are three, it takes about 2 hours), and as a result, the wiring inspection work time becomes long.

The present invention has been made in view of the above technical problems, and an object of the present invention is to provide a floor heating device capable of conducting a wiring inspection in a short time.

[0006]

[Means for Solving the Problems] In order to achieve the above object, the means for solving the problems according to the invention of claim 1 is arranged in each of a plurality of heating zones, and radiates heat from the floor surface of each heating zone. Multiple heating elements to go and heat
Each temperature zone is equipped with a plurality of temperature detection elements for detecting the floor heating temperature of each heating zone, and each heating element is connected with a separate control line and with each temperature detection element and a separate temperature detection line. In the floor heating device, which is connected and has a control means for individually controlling energization to each heating element so that the detected temperature of each temperature detection element approaches the set temperature of each heating zone, the control means is , A means for setting the wiring inspection mode to confirm whether the control line and the temperature detection line are properly connected to the heating element and the temperature detection element of the corresponding heating zone, and when the wiring inspection mode is set, By the control means,
The heating element of the heating zone to be subjected to wiring inspection is energized for a fixed time, and the temperature change of the heating zone at that time is detected based on the output of the temperature detection element, and the detected temperature change is detected. Based on this, means for judging whether the wiring inspection for the heating zone is successful or not is included.

According to a second aspect of the present invention, there is provided a floor heating system according to the first aspect, further comprising means for designating a heating zone to be inspected for wiring. According to a third aspect of the present invention, in the floor heating system according to the second aspect, there are provided means for displaying a designated heating zone subjected to wiring inspection and means for displaying a wiring inspection result of the heating zone. It is characterized by further including.

[0008]

When the wiring inspection mode is set, the heating element in the heating zone to be subjected to the wiring inspection is energized for a certain period of time, and the heating at that time is performed. The temperature change of the zone is detected based on the output of the temperature detecting element. Then, based on the detected temperature change, it is determined whether the wiring inspection for the heating zone is successful or not.

As described above, since the temperature detecting element detects whether or not the heating element in the heating zone subject to the wiring inspection is actually generating heat, the heat generation for performing the wiring inspection in one heating zone is detected. The time to energize the body is short. Therefore, the wiring inspection of the heating zone can be performed in a short time. Therefore, it is possible to reduce the work time of the wiring inspection. Moreover, since the pass / fail judgment of the wiring inspection is performed based on the temperature change of the heating zone detected by the temperature detecting element without depending on the human sense, the wiring inspection can be accurately performed.

The problem solving means according to the second aspect of the invention has the following actions in addition to the same actions as the first aspect of the invention. That is, when performing the wiring inspection, the heating zone to be subjected to the wiring inspection can be designated, so that the wiring inspection can be selectively performed for each heating zone. The problem solving means according to the third aspect of the invention has the following actions in addition to the same actions as the second aspect of the invention. That is, during the wiring inspection,
The heating zone to be subjected to the wiring inspection is displayed, and the wiring inspection result of the heating zone is displayed. Therefore, the inspection operator can easily confirm whether the wiring inspection of each heating zone is successful or not by confirming the above display state.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a block diagram showing an electrical configuration of a floor heating system according to an embodiment of the present invention. Referring to the figure, the floor heating system of the present embodiment divides the room into, for example, a plurality of (three in the figure) heating zones A, B, and C.
The controller 1 can perform a heating operation in a heating zone that requires floor heating.

In each heating zone A, B, C, heaters HA, HB, HC for radiating heat from the floor surface of each heating zone A, B, C to perform heating, and in each heating zone A, B, C,
Temperature sensors SA, SB, SC that detect the floor heating temperature of C
And are provided. The heaters HA, HB, and HC are, for example, film-like heaters that are interposed between the wood material on the front surface side and the base material on the underfloor side and generate resistance heat between the wood material on the front surface side and the base material on the underfloor side. Is adopted. Each heater HA,
HB and HC have heaters HA, HB and HC, respectively.
Energization lines DLA, DLB, and DLC for energizing the are connected.

Each energization line DLA, DLB, DLC is
Each is connected to the power supply 2 in parallel. A switching contact a is inserted in series in the energization line DLA. An opening / closing contact b is inserted in series in the energization line DLB. A switching contact c is inserted in series in the energization line DLC. As the temperature sensors SA, SB, SC,
For example, a temperature detecting element such as a thermistor is adopted.

The controller 1 includes a control circuit 100 for controlling the control center, relays RA, RB, RC for switching the contacts a, b, c between a closed state and an open state, and temperature sensors SA, SB ,. The temperature sensor input ports IA, IB, and IC to which the SC detection signal is input are built in. The control circuit 100 includes a microcomputer including a CPU, a data RAM, a program ROM, a timer, and the like, and controls according to a program stored in the ROM in advance.

The control circuit 100 includes relays RA, RB,
RC and temperature sensor input ports IA, IB, IC are connected, and temperature sensor input ports IA, IB,
The respective detection signals of the temperature sensors SA, SB, SC are given via the IC. Further, the remote controller 3 is connected to the control circuit 100 via a transmission line RCL, and a remote operation signal of the remote controller 3 is given via the transmission line RCL.

The control circuit 100 includes temperature sensors SA and S.
By controlling the drive of the relays RA, RB, RC so as to bring the detected temperatures of B, SC close to the set temperatures of the heating zones A, B, C, respectively, and by opening and closing the contacts a, b, c. Adjust the temperature. Each relay RA, RB, RC
Are connected to the switching contacts a, b, c via control lines CLA, CLB, CLC, respectively.

Input ports IA, IB, I for each temperature sensor
C is the temperature detection lines TLA, TLB, TL, respectively.
Each temperature sensor SA, SB, SC is connected via C. FIG. 2 is a plan view of the remote controller. Referring to the figure, the operation surface of the remote controller 3 is roughly the operation / stop related block 10, the time display related block 20, the floor temperature display related block 30, the zone display related block 40,
It is divided into a timer setting relation block 50, a floor temperature regulation relation block 60, and a zone designation relation block 70.

The run / stop related block 10 includes a run / stop button 11 for urging the run or stop, and a run / stop indicator lamp 1 for displaying the run or stop with an LED.
2 is provided. The run / stop indicator lamp 12
It lights up when driving and goes off when stopped. In the time display related block 20, a current time display device 21 that displays the current time on the LCD, an arrival time display device 22 that displays the time at which the operation should be started (hereinafter referred to as “on time”), and the operation are displayed. Time to stop (hereinafter, "off time"
Say. ) Is displayed on the LCD as an off time indicator 23.

The floor temperature display-related block 30 is provided with a floor temperature indicator 31 for displaying the floor temperature in seven stages from "low" to "high". Zone display related block 40
The LCD displays a heating zone indicator 41 that displays the currently operating heating zone on the LCD, and a heating zone (hereinafter referred to as the "entering zone") that is reserved to start the operation at the time when the vehicle enters. Reserved zone indicator 4
2 and a reserved-off zone indicator 43 for displaying on LCD the heating zone (hereinafter, referred to as “off zone”) that is reserved to be stopped when the turn-off time is reached. In the present embodiment, as will be described later, the reserved zone indicator 42 functions as a means for displaying the heating zone to be inspected for wiring, and the reserved zone indicator 43,
It functions as a means for displaying the wiring inspection result of the heating zone that has undergone the wiring inspection.

In the timer setting-related block 50, a clock setting button 51 for urging the current time to set the clock,
A timer setting button 52 for urging the clock to set the arrival time and the off time, the current time indicator 21, and the arrival time indicator 2
2 and the off time button 23 for advancing the time displayed respectively, and for returning the time respectively displayed on the present time display 21, the incoming time display 22 and the off time display 23. Return button 5
4 and "ON" or "OFF" of program timer operation
A program timer on / off button 55 for prompting the user is provided. In the present embodiment, as will be described later, the clock setting button 51, the timer setting button 52, the advancing button 53, and the returning button 54 function as means for setting the controller 1 in the wiring inspection mode.

The floor temperature adjustment block 60 is provided with a lower button 61 for adjusting the floor temperature to a low value and an elevation button 62 for adjusting the floor temperature to a higher value. The zone designation related block 70 includes an A zone on / off button 71 for designating operation or stop of the heating zone A.
And a B zone on / off button 72 for designating operation or stop of heating zone B, and a C zone on / off button 73 for designating operation or stop of heating zone C.
And a timer reservation button 74 for urging timer reservations for the entrance zone and the off zone. In this embodiment, as will be described later, the A zone ON / OFF button 71, the B zone ON / OFF button 72, and the C zone ON / OFF button 73 are means for designating the heating zone to be subjected to the wiring inspection. Function as.

By the way, when the floor heating system is installed, the switching contacts a, b, c and the temperature sensors SA, SB, SC are used.
And the controller 1 are connected, but it is necessary to prevent miswiring at the time of connection. In order to deal with this, the floor heating system of this embodiment includes relays RA, RB, RC and a temperature sensor input port I in the controller 1.
A, IB and IC are control lines CLA and CL, respectively.
B, CLC and temperature detection lines TLA, TLB, TL
Via C, the contact points a of the corresponding heating zones A, B, C,
A so-called wiring inspection function is provided for inspecting whether or not they are properly connected to b, c and the temperature sensors SA, SB, SC.

FIG. 3 is a flow chart showing the flow of the control operation of the wiring inspection. When performing the wiring inspection, first, the clock setting button 51 and the timer setting button 52 are simultaneously pressed for a predetermined time (for example, 5 seconds) to enter the maintenance mode. After that, the advance button 53 and the return button 54 are operated to set the display of the current time display 21 to the maintenance mode "5" and set the wiring inspection mode. When canceling the wiring inspection mode, pressing the timer setting button 52 once returns the wiring inspection mode to the normal mode.

Referring to FIG. 3, when the wiring inspection mode is set, the control circuit 100 first performs initialization and then waits until a heating zone to be inspected for wiring is designated (steps S1 and S2). . A zone on / off button 7
When one of the 1, B zone ON / OFF button 72 and C zone ON / OFF button 73 is pressed to specify the heating zone to be subjected to the wiring inspection, the control circuit 100 causes the reserved zone indicator 42 The heating zone designated to be subjected to the wiring inspection is displayed (step S3). Then, the control circuit 100 determines whether or not the timer reservation button 74 is pressed (step S4). If the timer reservation button 74 is not pressed, the process returns to step S2. On the other hand, when the timer reservation button 74 is pressed, the control circuit 100 performs a wiring inspection process on the designated heating zone (step S5). If the heating zones A and B are designated as the zones to be subjected to the wiring inspection, "A" and "B" are lit on the reserved zone indicator 42 as shown in FIG. From this lighting display, the inspection operator confirms that the heating zones A and B have been designated as the zones to be subjected to the wiring inspection. The operation contents of the wiring inspection process will be described later.

When the wiring inspection process is completed, the control circuit 10
After displaying the result of the wiring inspection on the reserved reserved zone display unit 43, 0 determines whether or not there is a heating zone to be subjected to the wiring inspection next (steps S6 and S7). If there is a heating zone to be subjected to the wiring inspection next, the process returns to step S5. On the other hand, if there is no heating zone for the next wiring inspection, the wiring inspection ends. If the wiring inspection for the heating zone A is passed, as shown in FIG. 5, “A” is turned on in the reserved zone indicator 43, and if the wiring inspection for the heating zone B is not passed, the reserved “B” is not lit on the zone display 43.

FIG. 4 is a flow chart showing the operation flow of the wiring inspection process. In the following, for convenience of explanation,
Description will be made assuming that a wiring inspection process is performed on the heating zone A. While the wiring inspection process is performed on the heating zone A, the control circuit 100 causes the reserved zone indicator 42
The "A" displayed on the display blinks. From this blinking display, the inspection operator confirms that the wiring inspection process is being performed on the heating zone A.

Referring to FIG. 4, when the wiring inspection process is started, the control circuit 100 first determines, based on the detection signal of the temperature sensor SA, before energizing the heater HA.
The floor surface temperature of the heating zone A is stored as the first temperature Tr1 (step S51). Then, the control circuit 100
While the timer is started, the relay RA is driven to close the contact a, and the heater HA is continuously energized for 5 minutes (steps S52 and S53). When the timer counts 5 minutes, the control circuit 100 drives the relay RA to open the contact a and stops energizing the heater HA. At this time, the control circuit 100 stores, as the second temperature Tr2, the floor surface temperature of the heating zone A at the time when the energization of the heater HA is stopped based on the detection signal from the temperature sensor SA (step S54). .

Then, the control circuit 100 determines whether or not the wiring inspection is successful, based on the temperature change of the floor surface of the heating zone A at the time when the heater HA is energized continuously for 5 minutes (steps S55 to S57). ). Specifically, the stored first temperature Tr1 and second temperature Tr2 are read, and the difference between the second temperature Tr2 and the first temperature Tr1 is larger than a predetermined threshold value (Tr2-Tr1). ≧ 3de
It is determined whether or not (g) (step S55). When the difference between the second temperature Tr2 and the first temperature Tr1 is larger than a predetermined threshold value, the relay RA and the temperature sensor input port IA in the controller 1 respectively open the control line CLA and the temperature detection line TLA. It is determined that the connection is properly made to the opening / closing contact a and the temperature sensor SA of the corresponding heating zone A via the above. That is, the heating zone A
It is determined that the wiring inspection with respect to is passed (step S
56). On the other hand, when the difference between the second temperature Tr2 and the first temperature Tr1 is smaller than the predetermined threshold value, it is determined that the wiring state of the control line CLA and the temperature detection line TLA is abnormal. That is, it is determined that the wiring inspection for the heating zone A has failed (step S57).

When the wiring inspection mode is set, the heater in the designated heating zone is energized for 5 minutes, and the temperature change in the heating zone at that time is A point detected based on the output of the sensor,
Also, the pass / fail of the wiring inspection of the designated heating zone is determined based on the detected temperature change. In this way, the temperature sensor detects whether or not the heater designated for wiring inspection is actually generating heat.
It takes only 5 minutes to energize the heater to inspect the wiring of one heating zone. Therefore, all heating zones A, B,
The time required to perform the wiring inspection of C is 15 minutes. Therefore, the work time of the wiring inspection can be significantly shortened. Moreover, the pass / fail judgment of the wiring inspection is performed based on the temperature change of the heating zone detected by the temperature sensor without depending on the human sense, so that the wiring inspection can be accurately performed. In addition, since the heating zone to be subjected to the wiring inspection can be specified when performing the wiring inspection, the wiring inspection can be selectively performed for each heating zone.

Another feature is that during the wiring inspection, the heating zone to be inspected for wiring is displayed on the reserved zone display 42, and the wiring inspection result of the heating zone subjected to the wiring inspection is displayed as the reserved zone. The point is displayed on the container 43. Therefore, the inspection worker is required to enter the reserved zone indicator 4
By confirming the display state of 2 and the reserved reserved zone display device 43, it is possible to easily confirm whether the wiring inspection of each heating zone has passed or failed. Moreover, the reservation zone indicator 42
Since the reserved reserved zone indicator 43 and the reserved reserved zone indicator 43 are provided vertically adjacent to each other, as shown in FIG. 5, the wiring inspection designated zone and the designated zone wiring inspection result are displayed as follows.
Each of them will be performed in a state where they are lined up and down for each zone. Therefore, the inspection operator can check the wiring inspection designated zone display and the designated zone wiring inspection result display with each other at a glance to confirm whether the wiring inspection is successful or not. As a result, it is possible to suppress the occurrence of a pass / fail confirmation error.

Another feature is that the clock setting button 5
1, the timer setting button 52, the advance button 53, and the return button 54 are made to function as wiring inspection mode setting means, A zone ON / OFF button 71, B zone ON / OFF button 72, and C zone ON / OFF button. 73,
A point functioning as a wiring inspection zone designating means, a point that the reserved entry zone indicator 42 functions as a wiring examination designation zone displaying means, and a reserved reservation zone indicator 4.
3 is made to function as a designated zone wiring inspection result display means.

Therefore, it is not necessary to separately add wiring inspection mode setting means, wiring inspection zone designation means, wiring inspection designated zone display means and designated zone wiring inspection result display means to the controller 1. As a result, the controller 1 itself does not increase in size. The present invention is not limited to the above-described embodiment. For example, in the above-described embodiment, when the control circuit 100 stores the order of the heating zones to be subjected to the wiring inspection in advance and the wiring inspection mode is set, the control circuit is controlled. Even if the heating zone wiring inspection is automatically performed according to the sequence stored in 100, the object of the present invention can be sufficiently achieved.

In the above embodiment, the controller 1 is additionally provided with means related to wiring inspection such as wiring inspection mode setting means, wiring inspection zone designation means, wiring inspection designated zone display means and designated zone wiring inspection result display means. It may be configured. In this case, the operation procedure when conducting the wiring inspection becomes simple. Of course, various design changes and modifications can be made within the scope of the claims of the present invention.

[0034]

As is apparent from the above description, claim 1
According to the invention described above, the temperature detecting element detects whether or not the heating element in the heating zone to be subjected to the wiring inspection actually generates heat. Therefore, the heating element for performing the wiring inspection in one heating zone. The energization time to is short. Therefore, the wiring inspection of the heating zone can be performed in a short time, and as a result, the work time of the wiring inspection can be shortened.
Moreover, since the pass / fail judgment of the wiring inspection is performed based on the temperature change of the heating zone detected by the temperature detecting element without depending on the human sense, the wiring inspection can be accurately performed.

According to the second aspect of the invention, in addition to the same effect as that of the first aspect of the invention, the following effect is obtained. That is, when performing the wiring inspection, it is possible to specify the required heating zone to be subjected to the wiring inspection.
The wiring inspection can be selectively performed for each heating zone.
According to the invention described in claim 3, in addition to the same effect as described in claim 2, the following effect is achieved. That is,
During the wiring inspection, the heating zone to be inspected for wiring is displayed and the wiring inspection result of the heating zone is displayed. Therefore, the inspector confirms the above-mentioned display state to check the wiring of each heating zone. It is possible to easily confirm whether or not

[Brief description of drawings]

FIG. 1 is a block diagram showing an electrical configuration of a floor heating apparatus according to an embodiment of the present invention.

FIG. 2 is a plan view of a remote controller.

FIG. 3 is a flowchart showing a flow of control operation of wiring inspection.

FIG. 4 is a flowchart showing an operation flow of a wiring inspection process.

FIG. 5 is a diagram showing an example of display states of a reserved zone indicator and a reserved zone indicator in a wiring inspection.

[Explanation of symbols]

 A, B, C Heating zone HA, HB, HC Heater a, b, c Open / close contact SA, SB, SC Temperature sensor CLA, CLB, CLC Control line TLA, TLB, TLC Temperature detection line 1 Controller 100 Control circuit RA, RB , RC Relay IA, IB, IC Input port for temperature sensor 42 Reserved zone indicator 43 Reserved zone indicator 51 Clock adjustment button 52 Timer adjustment button 53 Advance button 54 Return button 71 A zone ON / OFF button 72 B zone ON / Off button 73 C zone on / off button

Claims (3)

[Claims] 1. A plurality of heating elements which are respectively arranged in a plurality of heating zones (A, B, C) and which radiate heat from the floor surface of each heating zone (A, B, C) to perform heating. (HA, HB, HC) and each heating zone (A, B, C) respectively, and multiple temperature detection elements (SA, SA, which detect the floor heating temperature of each heating zone (A, B, C). SB, SC) and each heating element (HA, HB, HC) and individual control line (CLA, CLB, CLC) and each temperature detection element (SA, SB, SC) and individual temperature detection line ( TLA, TLB, TLC) and each heating element so that the detection temperature of each temperature detection element (SA, SB, SC) approaches the set temperature of each heating zone.
(HA, HB, HC) in the floor heating device provided with a control means (1) for individually controlling the energization, the control means (1), the control line (CLA, CLB, CLC) and temperature detection line Heating zone supported by (TLA, TLB, TLC)
(A, B, C) heating element (HA, HB, HC) and temperature sensing element (SA, S
(51, 52, 53, 54) for setting the wiring inspection mode to confirm whether or not it is correctly connected to (B, SC), and the control means (1) when the wiring inspection mode is set. The means for detecting the temperature change of the heating zone at that time on the basis of the output of the temperature detection element by causing the heating element of the heating zone to be inspected for wiring to be energized for a fixed time. A floor heating device comprising: a unit that determines whether or not a wiring inspection is performed on the heating zone based on a change. 2. A floor heating system according to claim 1, wherein a means for designating a heating zone to be inspected for wiring is provided.
2,73) further includes a floor heating system. 3. A floor heating system according to claim 2, wherein a means for displaying a designated heating zone for wiring inspection is provided.
A floor heating system further comprising: and a means (43) for displaying a wiring inspection result of the heating zone.