JP2009204276A - Hot water supply system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hot water supply system equipped with a display means having excellent visibility and for displaying information on electric power generating operation with small electric power consumption. <P>SOLUTION: The hot water supply system includes a first display part 4 for displaying information both on electric power generating operation and on hot water supply operation by using a display in a dot matrix method and a second display part 4 for displaying information on electric power generating operation by a light emitting situation (light emitting color, flickering and the like) of a light emitting diode separately from the first display part 4, as display means for a remote controller 1. The first display part 4 performs lighting control based on the state of hot water supply operation, and performs electric power saving control regardless of the state of the electric power generating operation to stop the display when the system is transferred to an electric power saving mode due to continuation of a waiting state of the hot water supply operation etc. The second display part 5 displays information on the electric power generating operation based on the state of the electric power generating operation regardless of the first display part 4. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a hot water supply system, and more particularly to a remote control display technique in a hot water supply system with a power generation function having a power generation function using a gas engine, a fuel cell, or the like.

  Recently, as a cogeneration system for home use, there is a hot water supply system with a power generation function that generates electric power with a gas engine or a fuel cell, collects exhaust heat generated at that time, generates hot water, and uses it for hot water supply. Is provided.

  By the way, in this type of hot water supply system, when surplus power is generated during power generation, the surplus power is used to heat the electric heater to heat the hot water in the hot water storage tank. In order to use it efficiently, it is desirable to use (consume) electric power so as not to generate surplus power as much as possible. In this type of hot water supply system, the display unit of the remote control of the hot water supply system installed in the kitchen or the like In addition, information related to the power generation operation is displayed together with information related to the hot water supply operation.

Here, as the display of the information related to the power generation operation, it may be possible to display only the state of the generator (whether or not the power generation is in progress), but that alone cannot sufficiently fulfill the purpose of the information display described above. For this reason, it is configured not only to display whether or not power generation is in progress, but also to display various information such as the current amount of generated power and the amount of power used. Therefore, as a display unit for displaying information related to the power generation operation, a display device capable of displaying characters (including symbols and numbers) and patterns (icons) using a dot matrix such as a liquid crystal display panel and a fluorescent display tube (VFD). in use.
JP 2004-79454 A

  However, when it is configured to display information related to power generation operation with characters and patterns in this way, there are the following problems, and improvements have been desired.

(1) That is, since a small remote controller is normally used as a remote controller for a hot water supply system installed in a kitchen or the like, the screen size of the display unit is small. For this reason, when a large amount of information is displayed using characters and pictures, the characters and pictures are naturally displayed in a small size, and there is a problem that it is difficult to confirm the display contents from a remote location.

(2) In addition, the remote control of the hot water supply system saves power when the hot water supply operation state satisfies a predetermined condition, such as when the hot water supply operation switch is turned off or the hot water supply standby state (no hot water supply) continues for a certain period of time. When the mode is changed, power saving control such as stopping the display of the display unit (for example, turning off the backlight of the liquid crystal display panel, turning off the fluorescent tube of the fluorescent display tube, and further for display control) Control for suppressing power consumption in the display unit such as setting the microcomputer to sleep mode). However, if a configuration that displays information related to power generation operation on the display unit is adopted, even if the hot water supply operation is stopped, the display unit display cannot be stopped if the power generation operation is performed. Can not do it. For this reason, there is a problem that power consumption cannot be reduced in the power saving mode.

  The present invention has been made in view of such problems, and the object of the present invention is to provide a hot water supply provided with a display means that has excellent visibility and can display information related to power generation operation with low power consumption. To provide a system.

  In order to achieve the above object, a hot water supply system according to the present invention is a hot water supply system with a power generation function provided with display means for notifying information relating to power generation operation and information relating to hot water supply operation, wherein each of the display means includes lighting means. A plurality of display devices, and at least one display device is a first display device that displays both information related to power generation operation and information related to hot water supply operation using characters, designs or a combination of characters and designs, The first display device is a second display device that displays information related to the power generation operation according to the light emission mode of the lighting means, and the first display device performs lighting control of the lighting means based on the hot water supply operation state. The second display device is configured such that the lighting control of the lighting means is performed based on the power generation operation state.

  That is, in the present invention, in the hot water supply system with a power generation function, the display means for notifying the information related to the power generation operation and the information related to the hot water supply operation includes information on the power generation operation and information on the hot water supply operation by characters, a picture, or a combination of characters and pictures Since the first display device that displays both and the second display device that is provided separately from the first display device and displays information related to the power generation operation according to the light emission mode of the lighting means, Among them, for example, information that can be notified without including character information, such as whether the power generation is currently being performed or whether the generated power or the used power is large, is displayed by the second display device on the light emission mode (specifically, for example, lighting Change the brightness, emission color, emission blinking cycle, number of light emitting elements constituting the lighting means, or a combination thereof according to the situation. While displaying by), displayed on the first display device using the character or figures and detailed information that can not be broadcast unless a character such as the current generated power and power used.

  Therefore, the user can grasp the information that can be notified without including the character information simply by visually recognizing the light emission mode of the second display device, and therefore can grasp the state of the power generation operation without approaching the display means. In particular, since the second display device displays information according to the light emission mode of the lighting means, the content can be confirmed even from a remote location, and the display content can be easily grasped even when the room is dark. When the information is insufficient in the information displayed on the second display device (for example, when the user wants to know the current amount of generated power or the amount of power used), the user approaches the display unit and performs the second display. Detailed information can also be confirmed and grasped by confirming the display content of the first display device provided separately from the device.

  As a preferred embodiment of the present invention, the lighting means of the first display device is configured such that the lighting control is performed in conjunction with the power saving control based on the hot water supply operation state. The lighting means is configured to perform the lighting control independently without being linked with the power saving control.

  That is, according to this embodiment, when the remote control shifts to the power saving mode (starts the power saving control) when the hot water supply operation condition satisfies a certain condition, the lighting means of the first display device controls the power saving control. However, since the second display device is controlled to be turned on independently, for example, when the power generation operation is in progress when the mode is shifted to the power saving mode, the display by the second display device is Continue without turning off. Therefore, according to this embodiment, it becomes possible to display information related to the power generation operation while maintaining and exhibiting the power saving effect in the power saving mode.

  In particular, since the first display device preferably uses a liquid crystal display panel or a fluorescent display tube using a dot matrix as a display device for displaying characters and pictures, lighting means for these display devices ( The power saving effect by turning off the backlight of the liquid crystal display panel and the self-luminous element of the fluorescent display tube is great. In addition, since the microcomputer for display control of the first display device can be put into the sleep mode together with the turning off of the lighting means, a power saving effect can be obtained in this respect as well.

  In relation to this, the lighting means of the second display device is “independently lighting control without being linked with the power saving control”. For example, the brightness of the lighting means of the second display device is slightly lowered in conjunction with the power saving control of the first display device. The control to such an extent that the power consumption is suppressed, that is, the control to slightly reduce the power consumption, is included in the “not linked with the power saving control” here.

  Thus, in this invention, the 1st display apparatus which displays both the information regarding power generation operation and the information regarding hot water supply operation by a character, a picture, etc., and the 2nd display apparatus which displays the information regarding power generation operation by the light emission mode of a lighting means Therefore, the user can grasp the information regarding the power generation operation by the light emission mode of the second display device without approaching the display means. In addition, since the second display device notifies information in a light-emitting manner, the display is not difficult to see even when applied to a small remote controller, and furthermore, information can be reliably displayed and transmitted even when the surroundings are dark. It has excellent visibility.

  In the present invention, since the lighting control of the first display device and the second display device is performed separately, the lighting means of the first display device is set to the hot water supply operation state as in the invention of claim 2. While the lighting control is performed in conjunction with the power saving control based on the above, the lighting means of the second display device is independently controlled without being linked with the power saving control. Since the lighting means can be turned off, it is possible to display information related to the power generation operation with power saving while maintaining and exhibiting the power saving effect.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is an external configuration diagram showing an example of a remote controller to which the present invention is applied. FIG. 2 is a block diagram illustrating a schematic configuration of the remote controller.

  A remote controller 1 shown in FIG. 1 is an operation device used for remote operation of the system in a hot water supply system having a power generation function and a hot water supply function. Here, as a hot water supply system having a power generation function and a hot water supply function, a type that generates power by driving a generator by a gas engine, a type that generates power by using a fuel cell, and sunlight is used depending on the mode of power generation. There are various types of hot water supply systems, such as those that generate electricity, but the structure of the power generation unit that realizes the power generation function of these hot water supply systems with a power generation function and the hot water supply unit that realizes the hot water supply function is well known, and thus the description thereof is omitted. Hereinafter, a characteristic configuration of the present invention will be described.

  A remote controller 1 shown in FIG. 1 is a remote control of a hot water supply system provided with display means for notifying information related to power generation operation and information related to hot water supply operation, and is a type of remote control that is mainly installed in a place other than a bathroom such as a kitchen. .

  The remote controller 1 is configured by housing an electrical board (not shown) inside a substantially box-shaped housing 2. A front panel 2 a covering the upper front portion and an open / close panel covering the lower front portion so that the lower front portion can be opened and closed. 2b. The front panel 2a is provided with an operation switch group 3, a first display unit 4 and a second display unit 5 that constitute display means, and a cover for hot water supply operation and power generation operation is hidden inside the open / close panel 2b. A switch group 6 is provided.

  The operation switch group 3 is one in which switches that are used frequently among the operation switches related to the hot water supply operation are arranged on the front surface of the remote control. In the illustrated example, as the operation switch group 3, the state of the hot water supply function is set to the hot water supply standby state ( A hot water supply switch 3a for switching between hot water discharge by opening the hot water tap and a hot water supply stop state (a state in which hot water is not discharged even when the hot water tap is opened) and automatic hot water filling to the bathtub are performed. A bath automatic switch 3b and a chasing switch 3c for performing bath chasing are provided.

  As shown in the figure, the first display unit 4 is a display unit that displays both information related to the power generation operation and information related to the hot water supply operation using characters and pictures. Specifically, the first display unit 4 As a display device used for the display device 4, a dot matrix type display device capable of displaying information by characters, designs, or a combination of characters and designs is used.

  As shown in FIG. 2, the display device constituting the first display unit 4 includes a display control microcomputer 41, and characters and patterns displayed on the display device are controlled by the display control microcomputer 41. The On the other hand, as a display device used for this display device, for example, a liquid crystal display panel or a fluorescent display tube (VFD) is preferably used. When a liquid crystal display panel is used as the display device, a backlight (not shown) is provided as lighting means for the first display unit 4. When a fluorescent display tube is used, the fluorescent tube itself for displaying characters and the like is composed of a self-luminous element, so that the fluorescent tube itself is used as the lighting means of the first display unit 4.

  Although this 1st display part 4 is a display part which displays the information regarding power generation operation with the said 2nd display part 5, this 1st display part 4 serves as a display part which complements the display of the said 2nd display part 5. Used. Although the details will be described later, the second display unit 5 is configured to display information related to the power generation operation in accordance with the light emission mode of the lighting means. Therefore, the information that can be displayed by the second display unit 5 is naturally limited. is there. For this reason, all the information that cannot be displayed on the second display unit 5 (specifically, information that indicates a numerical value as well as a mere display of the state) is included (including information displayed on the second display unit 5). The first display unit can be displayed.

  Here, when the information regarding the power generation operation displayed on the first display unit 4 is exemplified, for example, the state of the power generation device (whether or not the power generation is in progress), the generated power amount, the used power amount, the generated power amount and the used power amount, for example. Various information such as comparison can be displayed. In FIG. 1 (a), as information related to the power generation operation, a picture including characters “currently generating” indicating that power generation is currently being performed and characters “power used 20.0 kW” indicating the amount of power used are displayed. This is shown in the figure. In addition to the information related to the power generation operation, the first display unit 4 includes information related to the hot water supply operation (for example, the hot water supply set temperature and the amount of hot water in the hot water storage tank) and other information (for example, the current time). Etc.) are also displayed, but a description thereof will be omitted.

  On the other hand, the 2nd display part 5 is comprised by the display part which displays the information regarding a power generation operation by the light emission mode of a lighting means. In the present embodiment, the lower edge of the front panel 2 a is used as the second display unit 5. That is, in the present embodiment, a thin plate-like resin panel (specifically, a white resin panel with good translucency) having translucency is used as the front panel 2 a and is housed in the housing 2. The light guided from the lighting means to the back surface of the front panel 2a through a light guide member (not shown) is transmitted through the front panel 2 and appears outside.

  Specifically, the light emitting surface of the light guide member having a width dimension extending over substantially the entire length of the lower end edge is disposed on the back surface of the lower end edge of the front panel 2a so as to face the back surface. This light guide member is composed of a transparent block body that refracts light incident from the light incident surface and guides it to the light emitting surface, and as described above, the light emitting surface is on the back surface of the lower edge of the front panel 2a. When arranged so as to face each other, the shape is set so that the light incident surface is arranged at a position facing lighting means (not shown) arranged on the electrical board.

  In the present embodiment, the lighting means arranged on the electrical board is arranged slightly shifted from the back of the lower edge of the front panel 2a. Therefore, the light guide member is An inclined light guide path is provided between the light incident surface and the light incident surface. That is, through this light guide path, the light incident from the light incident surface is refracted and guided to the light emitting surface. For this reason, a light shielding plate is disposed on the inclined surface of the light guide path on the front panel side so that light does not leak outside (particularly on the front panel 2a side).

  On the other hand, a light emitting element such as a light emitting diode is preferably used as the lighting means of the second display portion 5. In particular, in the present embodiment, a three-color light emitting diode capable of a plurality of colors is used in order to give variations to the light emission mode of the second display unit 5.

  In addition, at least one light emitting diode may be disposed so as to face the light incident surface of the light guide member, but in the present embodiment, two light emitting diodes are arranged in total on the left and right sides of the light guide member. A color light emitting diode is disposed. Here, the reason why the light emitting diodes are arranged on the left and right sides of the light guide member one by one is to give variations to the light emitting mode of the second display unit 5 as described above. Specifically, the light transmitted through the front panel 2a through the light guide member by controlling the light intensity (luminance) of the light emitting diodes arranged on the left and right sides is substantially equal to the lower end edge of the front panel 2a. It can be expressed so that it appears as a rod-shaped light of a book, or it can be expressed so that the vicinity of the center of the lower edge is dark and both ends appear bright. Therefore, the number of light emitting diodes as the lighting means of the second display unit 5 can be appropriately set to two or more according to the light emission mode expressed by the second display unit 5.

  Further, in the lighting control of the light emitting diode, for example, as shown in FIG. 3, when the light emitting diode is turned on, the duty of the voltage applied to the light emitting diode from the start of lighting so that the apparent brightness gradually increases. The ratio is applied while gradually increasing within a certain time (1 second in the illustrated example). Also, when turning off the light, the reverse pattern is applied while gradually decreasing the duty ratio within a certain time so as to gradually darken (see from turning on to turning off in FIG. 4 (a)). As a result, the light emitting diode is slowly turned on (or turned off). The light that is gradually turned on / off is further refracted and diffused by passing through the light guide member, and is softened by transmitting through the front panel 2a, thereby realizing an apparently gentle on / off.

  Furthermore, when the light emitting diode blinks, as shown in FIG. 4B, the lighting period (2.5 seconds in the illustrated example) is set with respect to the light emitting diode extinguishing period (0.5 seconds in the illustrated example). A longer time is set, and the above-described control during lighting and extinguishing (slow lighting / extinguishing) is performed during the lighting period. Thus, by setting the blinking cycle so that the lighting period becomes longer, the blinking of the light emitting diode can be expressed as a gentle blinking as if the blinking of a firefly.

  It should be noted that the above-described voltage application method and lighting cycle setting described above are merely examples of lighting control and can be appropriately changed in design.

  Thus, the 2nd display part 5 can express various light emission modes with the brightness | luminance of a lighting means, the light emission color, the light emission blinking period, the light emission number of the light emitting element which comprises a lighting means, or these combination. The type of light emission used in the second display unit 5 is preset (initial setting) in the microcomputer 10 to be described later. This initial setting is configured so that the user can appropriately select the initial setting by operating the switch of the remote controller 1. Is done. For example, the brightness of the light emitting diode can be adjusted, the setting of the emission color can be changed, and the length of the blinking cycle can be changed.

  The second display unit 5 does not include the display control microcomputer 41 like the first display unit 4, and is configured such that the light emission mode can be controlled by the microcomputer 10 of the remote controller 1 described later. The

  The hidden switch group 6 includes switches that are used less frequently among the operation switches related to the hot water supply operation and the power generation operation, inside the open / close panel 2b.

  Thus, the remote controller 1 configured in this manner is provided with a microcomputer 10 as a control means for controlling each part of the remote controller 1 inside (on the electrical board). The microcomputer 10 is configured to be able to communicate with the power generation unit and the hot water supply unit via the communication interface 11. And the switch operation of the said operation switch group 3 or the hidden switch group 6 is received, the predetermined process (control with respect to a power generation unit or a hot water supply unit) corresponding to the said operation is performed, and the information (from a power generation unit or a hot water supply unit) ( This information includes, for example, the power generated by the power generation unit and the power used) based on the hot water supply operation state of the hot water supply function and the power generation operation state of the power generation function of the first display unit 4 and the second display unit 5 Configured to control display content.

  Therefore, next, display control of the first display unit 4 and the second display unit 5 will be described.

A: Display Control of the First Display Unit 4 The microcomputer 10 of the remote controller 1 executes power saving control when the hot water supply switch 3a of the remote controller 1 is in an off state (the hot water supply operation state is a state in which the hot water supply operation is not performed). In the present embodiment, as the power saving control, the lighting means of the first display unit 4 (that is, the backlight when the display device is a liquid crystal display panel, the fluorescent display tube when the display device is a fluorescent display tube) is turned off, Control for setting the display control microcomputer 41 to the sleep mode is performed, whereby the display by the first display unit 4 is stopped. During execution of this power saving control, there is no power consumption in the lighting means, and power consumption of the microcomputer 41 is reduced, so that useless power consumption in the remote controller 1 is suppressed.

  And in this embodiment, the display stop of the 1st display part 4 in the state which is not made to perform a hot water supply operation is maintained even if a power generation unit is generating electric power. That is, at this time, neither the information related to the hot water supply operation nor the information related to the power generation operation is displayed on the first display unit 4 (in the case where the display control microcomputer 41 is not set to the sleep mode and only the backlight is turned off as the power saving control). May display information on power generation operation (the same applies hereinafter). In this case, information regarding the power generation operation is displayed by the second display unit 5.

  On the other hand, when the hot water supply switch 3a is on, the microcomputer 10 turns on the lighting means of the first display unit 4 except for the case of being in the power saving mode, and the first display unit 4 displays information related to the hot water supply operation and information related to the power generation operation. To display. Here, the power saving mode is a control mode that shifts when a predetermined condition is satisfied such that a hot water supply standby (no hot water) state continues for a predetermined time while the hot water supply switch 3a is on. When shifting to, the microcomputer 10 executes the power saving control described above and stops the display by the first display unit 4. And also in this power saving mode, the display stop of the 1st display part 4 is maintained, and even if a power generation unit is generating electric power, nothing is displayed on the 1st display part 4, and the information regarding power generation operation is 2nd Displayed by the display unit 5.

  On the other hand, when there is hot water and the hot water supply standby state is canceled (the hot water supply operation state is in the hot water supply operation), the microcomputer 10 returns to the normal operation mode if it is in the power saving mode and saves power. Release control. That is, during the hot water supply operation, the lighting means of the first display unit 4 is turned on, and the first display unit 4 displays information related to the hot water supply operation and information related to the power generation operation. At this time, if the power generation unit is generating power, information related to the power generation operation is also displayed on the second display unit 5.

  Thus, the display control of the first display unit 4 is executed based on the hot water supply operation state of the hot water supply function. And it is comprised so that the lighting control of the lighting means of the 1st display part 4 may be implemented in conjunction with it.

B: Display Control of Second Display Unit 5 In contrast, the second display unit 5 performs display control based on the power generation operation state of the power generation function. That is, the second display unit 5 performs display control independently regardless of what state the hot water supply operation is in, and without interlocking with the power saving control.

  Here, the second display unit 5 displays that power generation is in progress when the power generation operation is started. In the present embodiment, the second display unit 5 expresses various light emission modes as described above. Since it is configured to be possible, it is configured not to simply display that power generation is in progress, but also to display the relationship with the power used.

  FIG. 5 shows an example of display control in the second display unit 5. In the setting shown in the illustrated example 1, the light emitting diode of the second display unit 2 is set to emit blue and green light. The rated generated power of the power generation unit is 1 [kW].

  When the power generation unit starts generating power, the microcomputer 10 compares the amount of power generated by the power generation unit with the amount of power used. When the power used exceeds the power generation (rated power generation), the light emitting diode is lit in blue. When it becomes less than the rated generated power (in the example shown, 0.8 [kW] with hysteresis), it is lit in green different from blue. That is, in addition to being able to know that the power generation unit is generating power if the second display unit 5 emits light, the user can efficiently use the power generated by the power generation unit if the emission color is blue. You can know that you use (consume) well. And if it is light-emitting in green, it can know that generated electric power is not consumed sufficiently and there is surplus electric power. In addition, the example 2 of illustration shows the case where the setting of the microcomputer 10 is changed and the light emission mode when the used power is less than the rated generated power is set to flashing blue.

  As described above, in the hot water supply system of the present invention, the second display unit 5 of the remote controller 1 is configured to display the power generation operation state in the light emission mode, so that the user can perform the second display even without approaching the remote controller 1. By visually recognizing the light emission mode of the unit 5, it is possible to know the state of the power generation unit (whether power generation is in progress) and whether the generated power can be used efficiently. Further, even if the installation location of the remote controller 1 is dark, it is easy to visually recognize the display by the light emission mode.

  In addition, since the second display unit 5 is configured to display information related to the power generation operation regardless of the hot water supply operation state, the hot water supply standby state is continued when the hot water supply operation is not performed or in the power saving mode. Even when the first display unit 4 is subjected to power saving control in the case of transition, the user can acquire information on the power generation operation through the second display unit 5. Therefore, power consumption in the remote controller 1 can be reduced by an amount that can stop the display on the first display unit 4.

  Furthermore, in the present embodiment, the light emission mode of the second display unit 5 can be selected by the user side. For example, when the installation location of the remote control 1 is dark and the display is too bright at the default brightness. It can be darkened, or the color of the light emission mode can be changed according to the user's preference, or can be notified by blinking. Therefore, the visibility can be further improved by selecting the light emission mode that is most easily seen by the user.

  Note that the above-described embodiments merely 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 thereof.

  For example, in the above-described embodiment, the case where the second display unit 5 is provided at the lower end edge of the front panel 2 a has been described. However, the second display unit 5 is provided at a position different from the first display unit 4. As long as it is provided, it may be provided at a position other than the lower edge of the front panel 2a. In the above-described embodiment, the second display unit 5 is configured to display the light from the lighting means (light emitting diode) through the front panel 2a. However, the second display unit 5 has an opening in the front panel 2a. It is also possible to provide the light from the lighting means directly (or via the light guide member) by providing a portion or the like. In short, the second display unit 5 only needs to be configured to be able to report information related to the power generation operation by the light emission mode of the lighting means controlled separately from the first display unit.

  In addition, the display mode of the first display unit 4 and the display mode of the second display unit 5 shown in the above-described embodiment are merely examples, and of course can be appropriately changed within the scope of the present invention. For example, as the display mode of the second display unit 5, the above-described embodiment has shown the case where the display is performed while changing the color of light emitted, but only a single piece of information (that is, whether or not power is being generated). In the case of displaying, it is also possible to configure so that information is notified by the presence or absence of light emission or the presence or absence of blinking.

  Further, in the above-described embodiment, the case where one first display unit 4 and one second display unit 5 are provided in the remote controller 1 has been described. However, the first display unit 4 and the second display unit 5 are provided as one unit. A plurality of remote controllers may be provided. Of course, it is also possible to provide a plurality of remote controllers in the hot water supply system and provide the first display unit 4 and the second display respectively.

BRIEF DESCRIPTION OF THE DRAWINGS It is an external appearance block diagram which shows an example of the remote control of the hot water supply system which concerns on this invention, Comprising: Fig.1 (a) is a front view which shows the state which opened the front opening / closing panel, FIG.1 (b) is the left view. It is. It is a block diagram which shows schematic structure of the remote control of the hot-water supply system. It is explanatory drawing which shows an example of the lighting control of the lighting means in the 2nd display part of the remote control of the hot-water supply system. It is explanatory drawing which shows an example of the lighting control of the lighting means in the 2nd display part of the remote control of the hot-water supply system. It is explanatory drawing which shows an example of the display control of the lighting means in the 2nd display part of the remote control of the hot-water supply system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Remote control 2 Case 2a of remote control 1 Front panel 2b Open / close panel 3 Operation switch group 4 1st display part (1st display apparatus)
41 microcomputer 5 for display control of the first display unit 5 second display unit (second display device)
6 Hidden switch group 10 Microcomputer

Claims (5)

In a hot water supply system with a power generation function provided with a display means for notifying information on power generation operation and information on hot water operation,
The display means is composed of a plurality of display devices each provided with a lighting means, and at least one display device displays both information relating to the power generation operation and information relating to the hot water supply operation by means of characters, designs or combinations of characters and designs. The other display device is a second display device that displays information related to the power generation operation by the light emission mode of the lighting means,
The first display device is controlled to turn on the lighting means based on the hot water supply operation state, and the second display device is controlled to turn on the lighting means based on the power generation operation state. A hot water supply system characterized by being configured.   The lighting means of the first display device is configured to perform lighting control in conjunction with the power saving control based on the hot water supply operation state, and the lighting means of the second display device is linked to the power saving control. The hot water supply system according to claim 1, wherein the lighting control is performed independently.   The lighting means of the first display device includes a backlight of the first display device or a self-luminous element that displays a character, a pattern, or a combination of a character and a pattern in the first display device, and the second display device The hot water supply system according to claim 1 or 2, wherein the lighting means is configured as a light source of a light guide member that causes the second display device to emit light.   The said 2nd display apparatus alert | reports a power generation driving | running state by the brightness | luminance of a lighting means, luminescent color, light emission blinking period, the light emission number of the light emitting element which comprises a lighting means, or these combination. A hot water supply system according to any one of the above.   The hot water supply system according to any one of claims 1 to 4, wherein the light emission mode of the lighting means of the second display device is determined based on the amount of generated power and the amount of power used.

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