JP5477048B2 - Combustion device and bath pot device - Google Patents

Description

  The present invention relates to a combustion apparatus and a bath apparatus, and more particularly to a combustion apparatus and a bath apparatus having a time stamp function for notifying a user of the arrival of an inspection time for an instrument.

  In a combustion apparatus using gas or oil as fuel, such as a bathtub apparatus, it is encouraged to inspect the equipment every certain period (for example, 10 years), and a time stamp for informing the user of the arrival of such inspection time. The one with the function has been proposed.

  Examples of this type of time stamp function include those that measure the cumulative energization time for the control unit, and those that measure the number of times of combustion operation (those that the inspection time has come when the number of times of combustion operation reaches a predetermined number). In any case, when the measured value reaches a predetermined value (a value indicating the arrival of the inspection time), the user is notified of the arrival of the inspection time. Specifically, for example, when a display unit is provided, the arrival of the inspection time is displayed on the display unit, and when an output unit such as a sound is provided, the inspection time is indicated by voice or alarm sound. It is comprised so that the arrival of may be alert | reported.

  By the way, the time stamp function of such a combustion apparatus prompts the user to request an inspection of the appliance (contact with an inspector such as a manufacturer / installer) by notifying the user of the arrival of the inspection time. Therefore, the user should not be able to release the time stamp (specifically, a notification operation indicating the arrival of the inspection time) without permission, while the notification operation continues until the inspector visits the user. Since it becomes an annoyance and an annoyance, it is requested | required that it should be able to be cancelled | released by the user himself / herself by an instruction from the manufacturer or the like. In other words, the time stamp cancellation operation should not be easily guessed by the user, but can be easily canceled even if a person who does not have specialized knowledge about the combustion apparatus receives instructions. Is required.

  Although different from the time stamp function, in a conventional combustion apparatus, a predetermined part of the control board is short-circuited by an external operation (for example, as an operation for releasing the interlock function that prohibits the combustion operation of the instrument) (for example, , Patent Document 1), and a device for inputting a reset release code (see, for example, Patent Document 2) have been proposed, but none of the methods / modes can satisfy the above-described requirements. The time stamp function cannot be canceled.

JP 2009-139024 A JP 2009-139063 A

  The present invention has been made in view of such problems, and the object of the present invention is to provide a combustion apparatus having a time stamp function that is difficult to guess but can be released by a simple operation if an instruction is received. And providing a bath apparatus.

In order to achieve the above object, the combustion apparatus according to claim 1 of the present invention is set to the operation mode of the combustion apparatus based on the operation position of the operation unit, and shifts to a predetermined special mode when a predetermined condition is satisfied. When the combustion device is in the state of transition to the special mode, the operation unit is set to a predetermined position other than the operation stop position, and the control unit is in this state. The special mode is configured such that the special mode is canceled on the condition that power supply is started, and the predetermined position of the operation unit is a combustion position for causing the combustion device to perform a combustion operation. When the release is performed, the control unit prohibits the combustion operation until the operation unit is temporarily switched from the combustion position to the operation stop position .

  That is, in the combustion apparatus according to claim 1, as conditions for releasing the special mode, (1) the operation unit is set to a predetermined position other than the operation stop position, and (2) in this state, to the control unit Two conditions are required: power supply is started. Therefore, in the combustion apparatus according to claim 1, for example, when the initial power is turned on when a combustion apparatus is newly installed or when the power supply to the combustion apparatus is temporarily interrupted by maintenance or the like, the power is turned on again (re-energized). The special mode is not canceled when the power is turned on with the operation unit set to the operation stop position, such as when turning on.

  In order to cancel the special mode in the combustion apparatus according to the first aspect, an operation different from the power-on to the general combustion apparatus described above is required. Specifically, first, when the operation unit is set to a position other than the operation stop position (that is, when the combustion device is performing the combustion operation), the operation unit is first set to the operation stop position. Stop the combustion operation of the combustion device. In this state, power supply to the combustion device (specifically, the control unit) is temporarily interrupted. Thereafter, in this state, the special mode is canceled by setting the operation unit to a predetermined position other than the operation stop position and then turning on the power again to the combustion device (control unit).

That is, in the combustion apparatus according to the first aspect, the condition (1) is satisfied only by turning on the power in a state where the combustion operation of the combustion apparatus is stopped (a state where the operation unit is set to the operation stop position). Therefore, the special mode is maintained, and the special mode is canceled only when the power is turned on with the operation unit set at a predetermined position. Therefore, the special mode cannot be canceled unless the position of the operation unit is set when the power is turned on and the special mode is canceled. In particular, when the power is turned on in this type of combustion apparatus, it is normal to set the operating portion to the operation stop position as described above, so that a position other than the operation stop position (and a specific predetermined position). It is not easy to come up with a power supply when set to). On the other hand, the special mode can be canceled by only two operations, that is, operation of the operation unit and turning on the power. Therefore, if an instruction from a third party can be received, the special mode can be canceled easily.
In the combustion apparatus according to claim 1, when the predetermined position of the operation unit for canceling the special mode is a combustion position for performing the combustion operation of the combustion apparatus, immediately after the operation for canceling the special mode is completed. When the control unit starts control according to the setting of the operation unit, fuel is supplied to the combustion unit of the combustion device, so when the operation position of the operation unit is at the combustion position with the release operation of the special mode. The combustion operation is prohibited until the operation unit is temporarily switched from the combustion position to the operation stop position, and fuel is prevented from being supplied to the combustion unit.

  A combustion apparatus according to a second aspect of the present invention is the combustion apparatus according to the first aspect, wherein a battery is used as the power source, and the power supply to the control unit can be cut off or supplied by operating the battery to be inserted and removed. It is comprised by these.

  That is, in the combustion apparatus according to claim 2, the start of power supply to the control unit performed in the operation for releasing the special mode is a battery insertion / removal operation (specifically, a battery insertion / removal operation into a battery case). You can do it. When the combustion apparatus according to claim 2 is implemented, the battery case that houses the battery can be easily inserted / removed inside the detachable panel at a position where the special mode releasing operation described above can be easily performed. It is preferable to arrange it at a suitable position.

  A combustion apparatus according to claim 3 of the present invention is the combustion apparatus according to claim 1 or 2, wherein the predetermined condition is an inspection time determination condition set to determine arrival of an inspection time of the combustion apparatus. It is characterized by being.

  That is, in the combustion apparatus according to claim 3, a condition (inspection time determination condition) set for determining the arrival of the inspection time of the combustion apparatus is used as the predetermined condition for shifting the combustion apparatus to the special mode. . Therefore, in the combustion apparatus according to the third aspect, when the inspection is required, the combustion apparatus shifts to a predetermined special mode. As the inspection time determination condition, for example, various conditions such as the number of combustions of the combustion device, the integrated energization time to the control unit, and the integrated combustion time of the combustion operation can be set.

  According to a fourth aspect of the present invention, in the combustion apparatus according to any one of the first to third aspects, the predetermined special mode is an inspection time notification mode for notifying at least the arrival of the inspection time of the combustion apparatus. It is characterized by that.

  That is, in the combustion apparatus according to the fourth aspect, at least a mode (inspection time notification mode) for notifying the arrival of the inspection time of the combustion apparatus is used as the special mode of the combustion apparatus. In this inspection time notification mode, for example, the arrival of the inspection time is displayed on the display unit of the combustion apparatus, or when an output means such as a sound is provided, a voice message or an alarm sound is output through the output means such as the sound. In this mode, the control unit performs an operation of notifying the outside of the arrival of the inspection time. Therefore, in the combustion apparatus according to the fourth aspect, by performing the above-described special mode release operation, it is possible to stop only the notification indicating the arrival of the inspection time while maintaining the state in which the combustion operation is possible. Since the special mode in the combustion apparatus according to claim 4 only needs to include at least the inspection time notification mode, for example, a mode (operation for prohibiting the combustion operation of the combustion apparatus in accordance with the transition to the inspection notification mode) When the prohibition mode) is executed, these modes (for example, the operation prohibition mode) can also be canceled with the cancellation of the inspection time notification mode.

  A combustion apparatus according to a fifth aspect of the present invention is the combustion apparatus according to any one of the first to fourth aspects, wherein the operation unit includes a cam switch that is turned on / off according to an operation position. Has a configuration in which the operation position of the operation unit is detected by detecting the on / off state of the cam switch. As a preferred embodiment of the combustion apparatus according to claim 5, at least two cam switches are provided, and at least two of the cam switches are on or off at the predetermined position of the operation unit. The operation position is in the off state.

  That is, in the combustion apparatus according to claim 5, the operation unit includes a cam switch that is turned on / off according to the operation position, and the control unit detects the on / off state of the cam switch, thereby detecting the operation position of the operation unit. For example, a combustion device in which an operation unit is provided in the combustion device itself, in particular, a balance type hot water supply device or a momentary water heater, a gas stove that does not include a remote controller (remote control) separate from the combustion device. The present invention can also be applied to a combustion apparatus having a simple configuration such as the above. When the control unit detects the operation position of the operation unit based on the on / off state of the cam switch as described above, the operation position where at least two cam switches are on or off is described above. By setting the operation position of the operation unit used for the release operation of the special mode (predetermined position in the condition (1) above), the special mode is canceled erroneously when one cam switch is turned on or off. The fear can be reduced.

The combustion apparatus according to any one of claims 1 to 6 is applied to a bath apparatus having a time stamp function, so that when a notification operation indicating the arrival of the inspection time is performed in the bath apparatus, The user can easily cancel the notification operation in response to an instruction from a trader or the like.

  According to the present invention, the special mode of the combustion device is canceled on the condition that the operation unit is set at a predetermined position other than the operation stop position and power supply to the control unit is started in this state. While it is difficult to guess by the above, it is possible to provide a combustion apparatus that can easily release the special mode if an instruction is received, and a bath apparatus using the combustion apparatus.

It is a schematic block diagram which shows an example which applied the combustion apparatus which concerns on this invention to the bathtub apparatus. It is an external appearance block diagram which shows an example of the operation knob of the operation part of the same bath apparatus. It is explanatory drawing which shows the operation position of the operation knob in the same bath apparatus, and the state of a cam switch and a gas valve.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a schematic configuration diagram showing an example of a combustion apparatus according to the present invention. Specifically, FIG. 1 shows a case where the combustion apparatus according to the present invention is applied to a bath apparatus.

  This bath apparatus 1 is a balance-type bath apparatus having a structure in which an air supply port and an exhaust port are exposed to the outside of the same atmosphere. In FIG. A bath tub device having a hot water supply function for supplying water is shown.

  Here, the bath apparatus 1 includes a heat exchanger part 2, a combustion part 3, an operation part 4, a display part 5, and a control part (controller) 6 as main parts.

  The heat exchanger unit 2 includes a bath heat exchanger 7 for bathing and a hot water supply heat exchanger 8 for hot water supply. The bath heat exchanger 7 is configured such that one end thereof communicates with the lower layer portion of the bathtub B and the other end communicates with the upper layer portion of the bathtub B. Is heated and introduced into the upper layer of the bathtub B, so that hot water in the bathtub B is circulated and heated. On the other hand, one end of the hot water heat exchanger 8 is connected to a water supply source (not shown) such as a water supply, and the other end is connected to a hot water tap such as Kallang K.

  The water supply source is connected to one end of the hot water supply heat exchanger 8 through a water inlet pipe 9, and the water inlet pipe 9 is provided with a water stop valve 10 that can shut off the water supplied from the water source. In addition to the water stop valve 10, the water inlet pipe 9 is provided with a water governor for adjusting the incoming water flow rate, a water flow switch for detecting water flow, and the like, although not shown. In addition, the other end (hot water side) of the hot water heat exchanger 8 is connected to a hot water tap such as a currant K or a shower S via the tank 11 and the hot water switching unit 12. The hot water switching unit 12 includes a switching lever (not shown) that switches whether the hot water supplied from the hot water supply heat exchanger 8 is discharged from the hot water tap K or the shower S.

  In the figure, reference numeral 13 denotes an airing safety device (overheat prevention device). This air-fired safety device 13 is made of bimetal, and operates when the bath heat exchanger 7 is heated to a predetermined temperature (the operating temperature of the bimetal), and the control unit 6 described later closes the original gas valve 17. A safe operation is performed. In addition, as this airing safety device 13, you may use a thermal fuse instead of a bimetal or with a bimetal.

  The combustion unit 3 includes a main burner (main burner) 15 for heating the heat exchanger unit 2 and a seed fire burner (pilot burner) 16 for igniting the main burner 15 for ignition. I have. In the present embodiment, the main burner 15 and the seed fire burner 16 are both gas burners that use gas as fuel, and fuel gas supplied from a gas supply source (not shown) passes through the original gas valve 17. The main burner 15 and the seed fire burner 16 are configured to be supplied.

  The original gas valve 17 is configured to be operated by a cam mechanism 32 that is interlocked with the operation of an operation unit 4 (specifically, an operation knob 30) described later, but only the original gas valve 17 is described later. Unlike the gas valves 20, 21, etc., the cam mechanism 32 is used only when the valve is opened, and once the valve is opened, the valve open state is maintained by a holding current. That is, the original gas valve 17 is configured such that the valve is closed (closed) when the supply of the holding current is interrupted.

  The fuel gas supplied from the gas supply source is connected to the main burner 15 on the downstream side (burner side) of the original gas valve 17 and the seed gas path 19 communicated to the seed burner 16. The main gas passage 18 is provided with a main gas valve 20 configured to cut off the supply of fuel gas to the main burner 15, and the seed gas passage 19 is connected to the seed fire burner 16. A pilot gas valve 21 configured to be able to shut off the supply of fuel gas is provided. Both the main gas valve 20 and the pilot gas valve 21 are configured so that the valves can be opened and closed by the action of a cam mechanism 32 interlocked with the operation of the operation unit 4.

  In the bath apparatus 1 shown in the present embodiment, in addition to the main gas valve 20 and the pilot gas valve 21, an auxiliary gas valve 22 for increasing the combustion capacity during hot water supply and a capacity switching gas valve 23 are provided. Is provided. The auxiliary gas valve 22 and the capacity switching gas valve 23 are gas valves provided to increase the amount of fuel gas supplied to the main burner 16, but the auxiliary gas valve 22 is an operation unit 4 described later. Is opened when a large hot water supply capacity ("hot water supply 2") is selected in the operation knob 30 (specifically, in the same manner as the main gas valve 20 and the pilot gas valve 21, it is linked to the operation of the operation unit 4). The capacity switching gas valve 23 is configured to be opened and closed by the operation of the capacity switching lever 24 regardless of the operation of the operation unit 4.

  In the figure, reference numeral 25 denotes a spark plug for igniting the seed fire burner 16, and this spark plug 25 is connected to the igniter 26 and is provided facing the seed fire burner 16. Reference numeral 27 denotes a frame rod which is a flame detection means of the main burner 15, and 28 denotes a thermocouple which is a flame detection means of the seed burner 16.

  The operation unit 4 is an operation means of the bath apparatus 1, and includes a dial-type operation knob 30 as shown in FIG. The operation knob 30 is externally mounted on a main body case (not shown) of the bath tub device 1, and the user can perform operations related to operation settings of the bath tub device 1 by operating the operation knob 30. ing.

  Specifically, the operation knob 30 has an “operation stop position” (see position P0 in FIG. 2) for stopping the combustion operation and an “ignition position” (see FIG. 2) for igniting the seed burner 16 as operation positions. 2 (see position P1 of FIG. 2), a “flaming position” (see position P2 in FIG. 2) for maintaining the state where the pilot burner 16 is lit, and a normal hot water supply (small hot water supply capacity). “Hot water supply 1” (see position P3 in FIG. 2) and “Hot water supply 2” (see position P4 in FIG. 2) used for large hot water supply capacity (large hot water supply capacity) are provided. However, when the position P2 is shifted to the position P3, the position P3 functions as a bath chasing position.

  More in detail. The operation knob 30 is connected to a shaft 31 built in the main body case, and the shaft 31 is set when the operation knob 30 is set to the operation positions (positions P0 to P4 in FIG. 2). Is configured to rotate. The shaft 31 is provided with a cam mechanism 32 as shown in FIG. 1, and the cam mechanism 32 is provided with gas valves such as the original gas valve 17 and the main gas valve 20 according to the operation of the operation knob 30. It is configured to act on switches such as cam switches 41 and 42 described later.

  Here, the cam mechanism 32 will be described. The cam 33 constituting the cam mechanism 32 is configured to perform the opening operation of the original gas valve 17 and the opening / closing operation of the main gas valve 20 and the pilot gas valve 21, and the cam 34 performs the opening / closing operation of the auxiliary gas valve 22. Configured to do. The cams 35 and 36 are configured to turn on / off cam switches 41 and 42 for inputting information related to the operation position of the operation knob 30 to the control unit 6. That is, in the present embodiment, the control unit 6 detects the operation position of the operation knob 30 based on the on / off states of the two cam switches 41 and 42. Further, the cam 37 is a cam mechanism for turning on / off the bath switch 43. When the bath switch 43 is in an off state, the water stop valve 10 is opened, and water supplied from a water supply source is supplied to the hot water supply. It is supplied to the heat exchanger 8.

  The display unit 5 is a display means for displaying the state of the bath apparatus 1. In the present embodiment, a display lamp (not shown) such as a light emitting diode is used as the display unit 5. The indicator lamp is externally mounted on the main body case of the bath apparatus 1 so that it can be seen from the outside, and the lighting / extinction of the lamp is controlled by the control unit 6. Specifically, for example, when the arrival of the inspection time is detected in the time stamp function of the bath apparatus 1 to be described later, this is notified to the outside by turning on the display unit (indicator lamp) 5.

  The control unit 6 is composed of a control board provided with a microcomputer (not shown) for controlling each part of the bath apparatus 1, and this control unit 6 turns on and off the cam switches 41 and 42 described above. Based on this, the operation position of the operation knob 30 is detected, and the operation of each part of the bath apparatus is controlled according to the detected operation position.

Here, the operation position of the operation knob 30 and the operation of the bath apparatus 1 will be briefly described.
In the bathtub apparatus 1 of the present embodiment, when the operation knob 30 is at the operation stop position (position P0), the main gas valve 17, the main gas valve 20, and the pilot gas valve 21 are all closed, and the cam Both switches 41 and 42 are turned off (see FIG. 3). The control unit 6 detects that the operation knob 30 is at the operation stop position from the state of the cam switches 41 and 42.

  Then, when the operation knob 30 is moved from the operation stop position (position P0) to the ignition position (position P1), the original gas valve 17 and the pilot gas valve 21 are opened by the action of the cam 33 linked to this operation (this When the main gas valve 20 is closed by the cam 33). Along with this, the cam switch 41 is turned on, the cam switch 42 is turned off, and the control unit 6 detects that the operation knob 30 has shifted to the ignition position from the state of the cam switches 41 and 42, and the seed burner 16 is ignited. That is, the igniter 26 is operated to bring the spark plug 25 into an ignition state, and the seed fire burner 16 is ignited. As a result, the seed fire is lit on the seed fire burner 16.

  When the ignition to the starter burner 16 is completed and a flame is detected in the thermocouple 28, the control unit 6 confirms the ignition of the starter and supplies a holding current to the original gas valve 17 to turn the original gas valve 17 off. Keep open. At this time, the main gas valve 20 remains closed, and the operation knob 30 automatically shifts to the ignition position (position P2).

  When performing hot water supply, the user moves the operation knob 30 from this state to a hot water supply position (for example, position P3 of “hot water supply 1”). As a result, the main gas valve 20 is opened by the action of the cam 33 that is interlocked with the operation of the operation knob 30, the fuel gas is supplied to the main burner 15, and the seed fire that is lit to the seed fire burner 16 is supplied to the main burner 15. The main burner 15 starts to combust by transferring the fire, and the hot water supply operation is started.

  Thus, when the operation knob 30 is in the hot water supply position, the bath switch 43 is turned off and the water stop valve 10 is opened. That is, the water supplied from the water supply source is supplied to the water inlet side of the hot water supply heat exchanger 8. In the state where the operation knob 30 is set to “hot water supply 1” (position P3), both the cam switches 41 and 42 are turned on, and the control section 6 determines that the operation knob is “from the state of the cam switches 41 and 42”. It is detected that the process has shifted to "hot water supply 1" and it is determined whether the flame of the main burner 15 is detected by the frame rod 27.

  When the operation knob 30 is operated from the ignition position to the hot water supply position of the “hot water supply 2” (position P4), the auxiliary gas valve 22 together with the main gas valve 20 is acted by the action of the cam 33 and the cam 34 linked to this operation. And a larger amount of fuel gas is supplied to the main burner 15 than in the case of the “hot water supply 1”, and a hot water supply operation with a large hot water supply capacity is performed. At this time, the cam switch 41 is turned off, the cam switch 42 is turned on, and the bath switch 43 is turned off (see FIG. 3).

  On the other hand, when retreating the bath, the operation knob 30 is pushed down to shift to the position P3. As a result, the main gas valve 20 is opened by the cam 33 (fire transfer to the main burner 15 is started), the bath switch 43 is turned on by the cam 37, the water stop valve 10 is closed, and the bath follower is turned on. A whispering operation is started.

  On the other hand, when stopping the hot water supply operation or the bath reheating operation, the operation knob 30 is moved to the operation stop position. As a result, the main gas valve 20 and the pilot gas valve 21 are closed by the action of the cam 33, and the holding current supplied to the original gas valve 17 by the control unit 6 is interrupted to close the original gas valve 17. Therefore, when the operation knob 30 is set to this operation stop position, the seed fire burner 16 and the main burner 15 are extinguished. When the operation knob 30 is at the operation stop position, both the cam switches 41 and 42 are turned off and the bath switch 43 is turned on (see FIG. 3).

  The control unit 6 has a time stamp function for notifying the user of the arrival of the inspection time of the bath tub apparatus 1 in addition to the control related to the basic operation of the bath tub apparatus 1. This time stamp function is a function exclusively for informing the user of the arrival of the inspection time. The time stamp function is a combustion operation in the bath apparatus 1 (hot water supply operation, bath reheating operation, and ignition of the seed fire to the seed fire burner 16). This does not include the prohibition of operation such as operation, which involves combustion of the burners 15 and 16. The bath apparatus 1 shown in the present embodiment measures the number of combustions of the main burner 15 with the control unit 6 as the time stamp function, and when the measured value reaches a predetermined value set in advance, the control unit 6 The display unit 5 is configured to shift to a special mode (inspection time notification mode) for notifying the arrival of the inspection time. In connection with this time stamp function, the control unit 6 is provided with a non-volatile storage means (not shown) such as an EEPROM, and data such as the number of combustions is stored and updated in this storage means. It is configured as follows. Therefore, in the bath apparatus 1, data such as the number of combustions is retained without being lost even when the power supply described later (battery insertion / extraction) is performed.

  In other words, the bath apparatus 1 uses the number of combustions of the main burner 15 as an inspection time determination condition for determining the arrival of the inspection time. When this number of combustions reaches a predetermined number, the inspection time comes. The display unit 5 is lit and notified in order to prompt the user to ask the trader to check the bath apparatus 1.

  As described above, as the time stamp function, in addition to being configured to determine the arrival of the inspection time from the number of combustions of the main burner 15, for example, the integrated energization time for the control unit 6 is measured and inspected. It may be configured to determine the arrival of the time, or measure the accumulated combustion time of the main burner 15 to determine the arrival of the inspection time. Moreover, as a special mode for notifying the arrival of the inspection time, a method of turning on the indicator lamp is adopted in the present embodiment. In addition to this, an indicator for blinking the indicator lamp or outputting means such as sound is provided. In such a case, it may be configured to notify by a voice message, an alarm sound or the like using the output means such as the voice.

  The bath apparatus 1 of the present embodiment uses a battery (dry battery not shown) as a drive power source for each part of the bath apparatus 1 including the control unit 6, and this battery is detachable from a predetermined battery case 50. That is, it is installed so that the battery can be inserted and removed. The battery case 50 includes electrical wiring for connecting the anode and cathode of the battery attached to the case 50 to a power supply unit (not shown) provided in the control unit 6. It is comprised so that the electric power supplied from a battery may be given to each part of the bathtub apparatus 1 through a part. That is, the microcomputer of the control unit 6 and the display unit 5 are all configured to be driven by the power supplied from the battery.

  In the present embodiment, the battery case 50 is disposed in the main body case so that the battery can be easily inserted and removed when the special mode described later is released. For example, a panel that can be attached / detached or opened / closed is provided at an easy-to-operate position such as the front surface or ceiling surface of the main body case, and the battery case 50 is disposed inside the panel. That is, when the panel is removed or opened, the battery can be easily inserted and removed from the outside.

  Therefore, in the bath apparatus 1 configured as described above, a method of canceling the notification mode when the control unit 6 shifts to the inspection time notification mode by the time stamp function will be described.

  As described above, the inspection time notification mode based on the time stamp function is set in order to prompt the user to inspect the bather apparatus 1 for the inspection of the bath tub apparatus 1. There are cases where the user wishes to cancel the notification mode, for example, from when the request is made until the inspector visits. In such a case, the bath apparatus 1 of the present embodiment is configured so that the user himself can release it. However, if this canceling operation can be operated by the user without making an inspection request, the meaning of informing the arrival of the inspection time with the time stamp function is lost, so in this embodiment, the user can easily I can't imagine it, but on the other hand, I can easily release it if I get advice from a contractor.

  Specifically, in this embodiment, the inspection time notification mode is canceled when the control unit 6 starts up when the control unit 6 starts up (specifically, when the microcomputer of the control unit 6 starts up). When a predetermined position (for example, the position of position P3 of “hot water supply 1”) other than the operation stop position (position P0) is detected as the operation position of the operation knob 30, the control unit 6 cancels the inspection time notification mode. Is programmed to do so.

  Here, the condition for releasing the inspection time notification mode is that the operation knob 30 is at a predetermined position other than the operation stop position. The operation knob 30 is set to the operation stop position and the control unit 6 is turned on. Raising (for example, turning on the power again, etc.) is within the range of operations that are normally performed during the maintenance of the bath apparatus 1 and can be easily estimated by the user so that it is in a predetermined position other than the operation stop position. As a condition. Further, the position of “hot water supply 1” (position P3) is used as the predetermined position at a position where both the cam switches 41 and 42 for detecting the operation position of the operation knob 30 are turned on (or off). Because. That is, for example, when the position of “hot water supply 2” (position P4) where only one cam switch is turned on is the predetermined position, the cam switch 42 is turned on (failure that the cam switch 42 is always turned on). Even if the operation knob 30 is set at a position other than the predetermined position, if the control unit 6 is started up in that state, the inspection time notification mode may be erroneously canceled. That is, from the viewpoint of preventing malfunction, in the present embodiment, the position of “hot water supply 1” where both the cam switches 41 and 42 are turned on is set as the predetermined position. Therefore, it is possible to adopt, for example, a “retreat position” as the predetermined position. If no particular malfunction is considered, any operation position other than the operation stop position may be adopted as the predetermined position.

  Therefore, a procedure for actually canceling the inspection time notification mode in the bath apparatus 1 in which the setting of the control unit 6 (setting of the cancellation condition of the inspection time notification mode) has been made will be described.

  When canceling the inspection time notification mode, when the operation knob 30 is at a position other than the operation stop position, first, the operation knob 30 is set to the operation stop position to stop the combustion operation.

  And in this state, the power supply with respect to the bath apparatus 1 (specifically control part 6) is once interrupted | blocked. Here, in the present embodiment, a battery is used as the power source of the bath apparatus 1, so the battery is extracted from the battery case 50. Thereby, the microcomputer of the control unit 6 stops its operation, and when the power is turned on again (that is, when the battery is inserted into the battery case 50 again), the microcomputer is newly activated. .

  Thereafter, the operation knob 30 is set to a predetermined position other than the operation stop position, that is, the position of “hot water supply 1” (position P3) in a state where the power supply to the bath apparatus 1 is cut off. Power supply to the apparatus 1 (specifically, the control unit 6) is started. That is, in this operation, the battery is inserted into the battery case 50. The predetermined position of the operation knob 30 is notified in advance to the user from the supplier side when, for example, an inspection request for the bath apparatus 1 is made, and the user operates the operation knob 30 based on the notification.

  As a result, the control unit 6 starts up (the microcomputer of the control unit 6 is activated), and accordingly, the control unit 6 detects “hot water supply 1” which is the predetermined position as the operation position of the operation knob 30. The time notification mode is canceled. That is, the display indicating the arrival of the inspection time on the display unit 5 is turned off.

  Thus, in the bathtub apparatus 1 of the present embodiment, the release of the inspection time notification mode is such that the operation knob 30 is set to a predetermined position other than the operation stop position, and the control unit 6 is powered on in this state. Since it is configured to be released on the condition that the supply is started, it is possible to provide a bath apparatus 1 in which the user cannot easily recall the release method and the release operation can be easily performed. become.

  The above-described embodiments show preferred embodiments of the present invention, and the present invention is not limited to these, and various design changes can be made within the scope of the invention.

  For example, in the embodiment described above, the case where the present invention is applied to a balance-type bath tub device is shown. However, the present invention is not limited to such a bath tub device. It is also applicable to water heaters and gas stoves.

  Moreover, although the case where this invention was used for cancellation | release of the inspection time alerting | reporting mode of a time stamp function was shown in embodiment mentioned above, this invention is comprised so that it may transfer to a predetermined special mode, when predetermined conditions are satisfy | filled. If the combustion device has been operated, it is not limited to the time stamp function (subject to the arrival of the inspection time), and other special conditions (for example, detection of a minor failure that allows combustion operation to continue) shift to the special mode. The special mode to be released is not limited to the notification mode as described above, but can also be applied to modes for stopping the hot water supply operation (safety stop mode, interlock, etc.). .

  Moreover, although the case where the two cam switches 41 and 42 were used for the detection of the operation position of the operation part 4 was shown in embodiment mentioned above, this cam switch is not limited to two but three or more are provided. May be. When three or more cam switches are provided, the operation position of the operation unit 4 at which the three or more cam switches are turned on or off can be used as a condition for releasing the special mode.

  Furthermore, although the case where a battery was used as the power supply of the combustion apparatus was shown in the above-described embodiment, a power supply other than the battery can be used as the power supply of the combustion apparatus. For example, it is also possible to use a commercial power source as the power source. In this case, the condition for releasing the special mode (start of power supply to the control unit 6) is a condition that the outlet plug is connected to the commercial power source. You can also.

  Moreover, although the case where the burner which uses gas as a fuel was used as the main burner 15 and the seed fire burner 16 in the above-described embodiment, the main burner 15 and the seed fire burner 16 are burners using fuel other than gas ( For example, it may be composed of a burner using oil as fuel.

1 Bath pot device (combustion device)
2 Heat exchanger section 3 Combustion section 4 Operation section 5 Display section 6 Control section 7 Bath heat exchanger 8 Hot water supply heat exchanger 9 Inlet pipe 10 Stop valve 12 Hot water switching section 15 Main burner 16 Type fire burner 17 Original gas valve 20 Main gas valve 21 Pilot gas valve 22 Auxiliary gas valve 23 Capacity switching gas valve 30 Operation knob 32 Cam mechanism 41, 42 Cam switch 43 Bath switch 50 Battery case (battery)

Claims (7)

In the combustion device configured to set the operation of the combustion device based on the operation position of the operation unit and to shift to a predetermined special mode when a predetermined condition is satisfied,
When the combustion device is in the state of transition to the special mode, the operation unit is set to a predetermined position other than the operation stop position, and power supply to the control unit is started in this state. As configured to cancel the special mode ,
In a case where the predetermined position of the operation unit is a combustion position for causing the combustion device to perform a combustion operation, when the special mode is released, the control unit temporarily moves the operation unit from the combustion position to the operation stop position. Combustion device that prohibits combustion operation until switched to .   The combustion apparatus according to claim 1, wherein a battery is used as the power source, and the power supply to the control unit can be cut off or supplied by operating the battery to be inserted and removed.   3. The combustion apparatus according to claim 1, wherein the predetermined condition is an inspection time determination condition set to determine arrival of an inspection time of the combustion apparatus.   The combustion apparatus according to any one of claims 1 to 3, wherein the predetermined special mode is an inspection time notification mode that notifies at least the arrival of the inspection time of the combustion apparatus. The operation unit includes a cam switch that is turned on and off according to an operation position.
5. The combustion apparatus according to claim 1, wherein the control unit is configured to detect an operation position of the operation unit by detecting an on / off state of the cam switch. 6.   The at least two cam switches are provided, and the predetermined position of the operation unit is an operation position in which at least two of the cam switches are in an on or off state. The combustion apparatus as described in. Bathtub apparatus characterized by comprising a combustion device according to any one of claims 1-6.

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