The present disclosure relates to a remote control for changing operating conditions of an air-conditioning apparatus.
As the related-art remote controls for air-conditioning apparatuses, the remote controls each including a display unit configured to display operating conditions of the air-conditioning apparatus is made of a double liquid-crystal panel have been proposed (see, for example, Patent Literature 1). The remote control disclosed in Patent Literature 1 includes a detail display unit configured to, when a cover is open, display details of operating conditions of an air-conditioning apparatus and an enlarged display unit configured to, when the cover is closed, provide enlarged display of some of the operating conditions of the air-conditioning apparatus. Furthermore, the detail display unit displays the contents displayed by the enlarged display unit during displaying the details of the operating conditions.
Patent Literature 1: Japanese Patent No. 5268816
In the remote control disclosed in Patent Literature 1, the detail display unit displays not only the details of the operating conditions but also the contents displayed by the enlarged display unit. In order to display the information displayed by the enlarged display unit on both panels of the double liquid-crystal panel, it is necessary to provide a space for displaying the contents displayed by the enlarged display unit, in the detail display unit. As a result, a display screen increases in size and thus the remote control itself increases in size and weight.
The present disclosure has been made to solve the aforementioned problem and provides a small and light remote control for an air-conditioning apparatus.
A remote control for an air-conditioning apparatus according to an embodiment of the present disclosure includes: an outer button to be operated by a user for changing an operating condition of an air-conditioning apparatus body; an inner button to be operated by the user for changing the operating condition; a cover that is openable and closable and is configured to cover the inner button; a cover opening/closing detection unit configured to detect opening/closing of the cover; a display unit configured to display an enlarged display screen displaying at least one of an operation mode, a set temperature and a set humidity, and a detail display screen displaying a function of the inner button; and a display switching unit configured to, when the cover opening/closing detection unit detects that the cover is closed, make the display unit display the enlarged display screen, and when the cover opening/closing detection unit detects that the cover is open, make the display unit display the detail display screen.
According to an embodiment of the present disclosure, switching between the enlarged display screen and the detail display screen according to whether the cover is open or closed eliminates the need to provide overlapping display of information on operating conditions. Therefore, an increase in size of the remote control display screen is suppressed and an unnecessary increase in size of the remote control itself can be avoided, enabling provision of a handy remote control.
A configuration of a remote control for an air-conditioning apparatus of Embodiment 1 will be described.
The transmission unit 10 transmits a signal for changing operating conditions including set conditions to an air-conditioning apparatus body 2. Each of the outer buttons 12 and the inner buttons 13 is a button to be operated by a user to change an operating condition of the air-conditioning apparatus body 2. Each of the outer buttons 12 is a button that a user can operate even when the cover 14 is closed. As the outer buttons 12, a single outer button 12 may be provided or a plurality of outer buttons 12 may be provided. The inner buttons 13 are covered by the cover 14 when the cover 14 is closed. Each of the inner buttons 13 is a button that a user cannot operate unless the cover 14 is open. As the inner buttons 13, a single inner button 13 may be provided or a plurality of inner buttons 13 may be provided. The cover opening/closing detection unit 15 is a sensor configured to detect that the cover 14 is open/closed. The cover opening/closing detection unit 15 outputs a signal representing that the cover 14 is open/closed, to the control unit 20. More specifically, the cover opening/closing detection unit 15 outputs a signal representing that the cover 14 is open, to the control unit 20 when the cover 14 is open, and outputs a signal representing that the cover 14 is closed, to the control unit 20 when the cover 14 is closed.
The display unit 11 displays operating conditions of the air-conditioning apparatus body 2. The display unit 11 is made of a double liquid-crystal panel including a first display panel 110a and a second display panel 110b. The first display panel 110a is disposed as an upper layer of the double liquid-crystal panel and displays an enlarged display screen that displays operating conditions with characters that a user can easily read. The operating conditions displayed on the enlarged display screen are, for example, operation modes, which are cooling, heating and dehumidification, a set temperature and a set humidity. The second display panel 110b is disposed as a lower layer of the double liquid-crystal panel and displays a detail display screen that displays operating conditions with characters that are smaller than those of the enlarged display screen. The operating conditions displayed on the detail display screen are, for example, conditions set for air-conditioning functions including a fan speed and airflow directions and conditions set for special functions including a timer.
Although one of these two display panels of the first display panel 110a and the second display panel 110b, is disposed as the upper layer and the other is disposed as the lower layer, either of the display panels may be the upper layer. Also, there may be a function displayed on both of the enlarged display screen and the detail display screen. The function displayed on the both screens may be disposed on either the first display panel 110a or the second display panel 110b.
Furthermore, display of one of two functions that are not set simultaneously may be disposed at a planar position in the first display panel 110a and display of the other function may be disposed at a planar position in the second display panel 110b that is the same as the planar position in the second display panel 110b. In this case, the display area can be saved. For example, a configuration in which display of a function BBB is provided at a planar position of the second display panel 110b, the position being a position at which display of a function AAA is provided in the first display panel 110a, is conceivable. With this configuration, when the function AAA is set, the function AAA is displayed on the enlarged display screen and when the function BBB is set, the function BBB is displayed on the detail display screen.
The control unit 20 is, for example, a microcomputer. The control unit 20 includes a memory storing a program and a central processing unit (CPU) configured to perform processing according to the program, which are not illustrated. The control unit 20 controls the transmission unit 10 and the display unit 11 according to signals input from the outer buttons 12, the inner buttons 13 and the cover opening/closing detection unit 15.
The control unit 20 includes an input control unit 21 configured to determine a type of a button operated, a display switching unit 22 configured to perform switching of display on the display unit 11, and a time measuring unit 23 configured to measure time. Upon execution of the program by the CPU, the input control unit 21, the display switching unit 22 and the time measuring unit 23 are configured in the remote control 1. Upon operation of a button by a user, the input control unit 21 determines from which button, from among the outer buttons 12 and the inner buttons 13, a signal has been input, and provides button information representing the button from which the signal has been output, to the display switching unit 22. Also, the input control unit 21 accepts a setting change for the air-conditioning apparatus body 2 according to the signal from the button operated, and transmits a signal representing the content of the setting change, to the air-conditioning apparatus body 2 via the transmission unit 10. The display switching unit 22 switches a screen displayed on the display unit 11, between the enlarged display screen and the detail display screen, based on information of whether the cover 14 is open or closed, the information being acquired from the cover opening/closing detection unit 15, and button information acquired from the input control unit 21.
In the display unit 11 illustrated in
In the example configuration illustrated in
Although in the example configuration illustrated in
In display unit 11 illustrated in
In the example configuration illustrated in
Note that although Embodiment 1 is described in terms of a case where a display unit 11 is a double liquid-crystal panel including a first display panel 110a and a second display panel 110b superposed on the first display panel 110a, the configuration of the display unit 11 is not limited to this case. The display unit 11 only needs to be capable of switching between the enlarged display screen and the detail display screen.
Next, operation of the remote control 1 of Embodiment 1 will be described with reference to
Here, it is assumed that at the start, the air-conditioning apparatus body 2 is in operation and the cover 14 of the remote control 1 is closed. In this state, the cover opening/closing detection unit 15 detects the closure and the display switching unit 22 allows the enlarged display screen to be displayed on the first display panel 110a (step S101). In this case, the display unit 11 displays, for example, the enlarged display screen 111a illustrated in
In the determination in step S102, upon the closed cover 14 being opened (YES in step S102), the display switching unit 22 switches the screen displayed on the display unit 11 from the enlarged display screen 111a to the detail display screen (step S103). In this case, the display unit 11 displays, for example, the detail display screen 111b illustrated in
Note that although not illustrated in
In step S103, upon the display unit 11 starting display of the detail display screen 111b illustrated in
On the other hand, in the determination in step S104, when the cover 14 is kept open (NO in step S104), the input control unit 21 determines whether or not any outer button 12 is pushed (step S105). When no outer button 12 is pushed (NO in step S105), the display switching unit 22 keeps the detail display screen 111b on the display unit 11.
Note that although not illustrated in
In the determination in step S105, when the input control unit 21 detects a push of the outer button 12 (YES in step S105), the display switching unit 22 switches the screen displayed on the display unit 11 from the detail display screen 111b to the enlarged display screen 111a (step S106). When the cover 14 is open, the second display panel 110b displays the detail display screen 111b according to a result of detection by the cover opening/closing detection unit 15; however, here, the display switching unit 22 allows the enlarged display screen 111a to be displayed on the first display panel 110a. Switching from the detail display screen 111b to the enlarged display screen 111a as described above even when the cover 14 is open is attributable to the user presumably wishing to change a set condition of a function displayed on the enlarged display screen 111a by pushing of the outer button 12.
In step S106, upon the display unit 11 starting display of the enlarged display screen 111a, the time measuring unit 23 starts measuring time from the start of display of the enlarged display screen 111a (step S107 illustrated in
On the other hand, in the determination in step S108, when the cover 14 is kept open (NO in step S108), the input control unit 21 determines whether or not any outer button 12 is pushed (step S109). When the input control unit 21 detects a push of an outer button 12 (YES in step S109), the time measuring unit 23 resets the measured time t to zero and then resumes time measurement (step S107). The time measuring unit 23 resetting the measured time t and resuming time measurement from zero is attributable to the user presumably continuing an operation to change a set condition of a function displayed on the enlarged display screen 111a with the cover 14 open.
In the determination in step S109, when no outer button 12 is pushed (NO in step S109), the input control unit 21 determines whether or not any inner button 13 is pushed (step S110). When the input control unit 21 detects a push of an inner button 13 (YES in step S110), the display switching unit 22 switches the screen displayed on the display unit 11 from the enlarged display screen 111a to the detail display screen 111b (step S112). The switching from the enlarged display screen 111a to the detail display screen 111b is attributable to the user presumably attempting to change a set condition of a function that can be operated by the inner button 13 by operating the inner button 13.
In the determination in step S110, when no inner button 13 is pushed (NO in step S110), the display switching unit 22 determines whether or not the measured time t measured by the time measuring unit 23 reaches a first time Tth1 (step S111). The first time Tth1 is a fixed length of time and information of the first time Tth1 is stored in a memory (not illustrated) in the control unit 20. As a result of the determination in step S111, when the measured time t does not reach the first time Tth1 (NO in step S111), the display switching unit 22 keeps the enlarged display screen 111a displayed on the display unit 11 with the cover 14 open and returns to the determination processing in step S108.
As a result of the determination in step S111, when the measured time t reaches the first time Tth1 (YES in step S111), the display switching unit 22 switches the screen displayed on the display unit 11 from the enlarged display screen 111a to the detail display screen 111b (step S112). Subsequently, the display switching unit 22 returns to the determination processing in step S104 illustrated in
As described above, triggered by, e.g., opening/closing of the cover 14 or an operation of a button, the remote control 1 switches between the enlarged display screen and the detail display screen on the two display panels of the double liquid-crystal panel and thus eliminates the need for displaying information on operating conditions in an overlapped manner. Therefore, an increase in size of the display screen is suppressed and an unnecessary increase in size of the remote control itself according to the size of the display screen can be avoided. Also, a handy remote control with improved usability for a user can be provided.
Note that although Embodiment 1 has been described in terms of a case where functions displayed on the detail display screen only are assigned to the inner buttons 13, functions displayed on the enlarged display screen only may be assigned to outer buttons 12. Presumably, the cover 14 of the remote control 1 is often closed. Assigning the functions displayed on the enlarged display screen only to the outer buttons 12 enables a user to change operating conditions via the outer buttons 12 while viewing the enlarged display screen without opening the cover 14 and thus makes the remote control 1 easy to operate.
Also, although display switching control has been described with reference to
In step S105 illustrated in
In each of these two cases, before a first button operation that serves as a trigger for display switching, the display unit 11 does not display a set condition of a function the user intends to operate. For example, in step S110 illustrated in
As another specific example, a case of the power saving function will be described. When the power saving function is turned on, the input control unit 21 controls the air-conditioning apparatus body 2 in a power saving mode in which various functions for air-conditioning such as the airflow directions and the fan speed are automatically controlled for power saving. When an inner button 13 is pushed in the power saving mode, the input control unit 21 cancels the power saving mode. In the case of this control, for example, in step S110 illustrated in
The input control unit 21 being configured not to accept a setting change designated by a first button operation serving as a trigger for display switching as described above enables reduction of operation errors.
Also, the input control unit 21 may be configured not to accept all of first button operations each serving as a trigger for display switching, but to accept some of the first button operations. For example, the input control unit 21 may be configured to, in step S105 illustrated in
Also, a case where whether or not the input control unit 21 accepts a setting change according to a button operation is determined according to a display status, and whether the operated button serving as a trigger for display switching is an outer button 12 or an inner button 13 has been described; however, the method of the determination is not limited to this example. For example, even when an outer button 12 is operated in step S105 illustrated in
However, it is desirable that the input control unit 21 enable the functions assigned to the plurality of outer buttons 12 for the operation modes for designating operation such as cooling and heating and operation stopping irrespective of whether or not an operation of the button is a first button operation involving display switching. This is because the functions assigned to the plurality of outer buttons 12 are most basic functions from among the plurality of functions of the air-conditioning apparatus body 2 and thus desirably quickly start working. For example, there may be a case where when the user goes out in a hurry, the user needs to perform a button operation for operation stopping twice in total unless the input control unit 21 accepts a first button operation for operation stopping. Enabling the plurality of outer buttons 12 for the operation modes and operation stopping irrespective of whether or not an operation of the button is a first button operation involving display switching not only reduces the user's burden of operation but also enhances ease of operation.
The remote control 1 of Embodiment 1 displays the enlarged display screen displaying at least one of the selected operation mode, the set temperature and the set humidity when the cover 14 is closed, and displays the detail display screen displaying functions to be operated via the inner buttons 13 when the cover 14 is open.
According to Embodiment 1, switching between the enlarged display screen and the detail display screen with opening/closing of the cover 14 as a trigger eliminates the need for overlapping display of information on the operating conditions. Therefore, an increase in size of the display screen is suppressed and an unnecessary increase in size of the remote control itself according to the size of the display screen can be avoided. Also, a user can switch between the enlarged display screen and the detail display screen merely by opening/closing the cover 14 and the ease of operation is thus enhanced. As a result, a remote control that is not only small and light but also handy can be provided.
In Embodiment 1, the detail display screen may be configured not to display items displayed on the enlarged display screen. For example, the detail display screen may display the functions of the inner buttons 13 only and the enlarged display screen may display the functions of the outer buttons 12 only. Since the detail display screen does not display the items displayed on the enlarged display screen, the display area can be used for display of the functions of the inner buttons 13, and thus, the user can easily view the functions displayed on the detail display screen.
In Embodiment 1, upon a user pushing an outer button 12 when the cover 14 is open and the display unit 11 displays the detail display screen, the display unit 11 switches the display screen from the detail display screen to the enlarged display screen. Since the screen displayed on the display unit 11 is switched from the detail display screen to the enlarged display screen even when the cover 14 is open, the user can change a setting for a function while confirming the current set condition of the function displayed on the enlarged display screen. The user has no need to close the cover 14 to switch the display screen and the user's burden of operation is thus reduced.
In Embodiment 1, upon the user pushing an inner button 13 when the display unit 11 displays the enlarged display screen with the cover 14 open, the display unit 11 switches the display screen from the enlarged display screen to the detail display screen. Since the display screen on the display unit 11 is switched from the enlarged display screen to the detail display screen, the user can quickly operate the inner button 13 while confirming the current set condition of the relevant function displayed on the detail display screen. As a result, the ease of operation of the remote control 1 can further be enhanced.
In Embodiment 1, when there is no button operation even upon a lapse of the first time Tth1 from a start of display of the enlarged display screen on the display unit 11 with the cover 14 open, the display unit 11 switches the display screen from the enlarged display screen to the detail display screen. Where the cover 14 is kept open for a long period of time, the user is presumably trying to operate an inner button 13 while viewing the detail display screen. In this case, the user can quickly change a setting for a function assigned to an inner button 13 while viewing the detail display screen switched from the enlarged display screen.
A configuration of a remote control of Modification 1 of Embodiment 1 will be described.
As illustrated in
A control unit 20 includes an irradiation control unit 24 configured to control the backlight 16. The irradiation control unit 24 monitors a plurality of signals including a signal representing a change in state of the cover 14 as to whether the cover 14 is open or closed, signals from outer buttons 12 and signals from inner buttons 13. Then, upon receipt of an input of any of the plurality of signals, the irradiation control unit 24 turns on the backlight 16. The irradiation control unit determines whether any of the plurality of signals has been input, based on the cover opening/closing signal acquired from a cover opening/closing detection unit 15 and button information acquired from an input control unit 21.
Also, after turning on the backlight 16, the irradiation control unit 24 turns off the backlight 16 after a lapse of a second time Tth2 from the user last performing any of operations that are opening/closing of the cover 14, operation of an outer button 12 and an operation of an inner button 13. The second time Tth2 is a fixed length of time and information of the second time Tth2 is stored in a memory (not illustrated) in the control unit 20.
If the second time Tth2 is excessively long, the life of a battery that supplies power to the backlight 16 becomes short. Also, for example, when the user operates the remote control 1a in a room darkened for sleeping, if the second time Tth2 lasts excessively long after the operation, light of the backlight 16 is too bright for the user and interferes with the user's sleep. Therefore, it is necessary to prevent the second time Tth2 from being excessively long.
However, the second time Tth2, which is a lighting time of the backlight 16, is desirably longer than a first time Tth1. As described in Embodiment 1, the first time Tth1 is a length of time from a start of display of an enlarged display screen to automatic switching to a detail display screen without user's operation when the cover 14 is open. If the second time Tth2 is shorter than the first time Tth1, the display on the display unit 11 may switch from the enlarged display screen to the detail display screen after the backlight 16 being turned off. This phenomenon may make the user feel like that the backlight 16 is turned off during the operation. As a result, the user feels uncomfortable and feels like that the remote control is difficult to operate, causing not only a decrease in ease of viewing of the display on the display unit 11 but also a decrease of evaluation of ease of operation of the remote control. Therefore, the second time Tth2 is desirably longer than the first time Tth1.
Next, a procedure of control of the backlight 16 performed by the control unit 20 will be described. Here, a detailed description of display switching control by the display unit 11 will be omitted.
The irradiation control unit 24 determines whether or not a user has performed any of a plurality of operations, including an operation of opening/closing the cover 14, an operation of an outer button 12 and an operation of an inner button 13 (step S201). When any of the plurality of operations has been performed, the irradiation control unit 24 turns on the backlight 16 (step S202). In step S202, upon a start of lighting of the backlight 16, a time measuring unit 23 starts measuring time from the start of the lighting of the backlight 16 (step S203). Upon the time measuring unit 23 starting the time measurement, the irradiation control unit 24 determines whether or not any of the plurality of operations has been performed (step S204).
In the determination in step S204, when any of the plurality of operations has been performed, the time measuring unit 23 resets the measured time t to zero and resumes time measurement (step S203). The time measuring unit 23 resetting the measured time t and resuming time measurement from the measured time t of zero is attributable to the user presumably continuing the operation of the remote control 1a.
In the determination in step S204, when none of the plurality of operations is performed, the irradiation control unit 24 determines whether or not the measured time t measured by the time measuring unit 23 reaches the second time Tth2 (step S205). As a result of the determination in step S205, when the measured time t does not reach the second time Tth2, the irradiation control unit 24 keeps the backlight 16 lit and returns to the determination processing in step S204. On the other hand, as a result of the determination in step S205, when the measured time t reaches the second time Tth2, the irradiation control unit 24 turns off the backlight 16.
This is because the second time Tth2 has passed from the user's last operation of the remote control 1a and the user presumably performs no further operation. Also, since the backlight 16 is lit for the second time Tth2 that is longer than the first time Tth1, the backlight 16 is turned off after the display unit 11 automatically performs switching of the display without the user's operation. Therefore, the user can confirm the display after the switching during the backlight 16 being lit. In comparison with a case where the display on the display unit 11 is switched after the backlight 16 being turned off, not only the ease of viewing of the display on the display unit 11 for the user but also reliability of operation of the remote control 1a is enhanced.
For example, a case where the user operates the remote control 1a before going to sleep, turns off the backlight 16 and then operates the remote control la again to change a set condition of the air-conditioning apparatus body 2 will be considered. If the display on the display unit 11 switches after the backlight 16 being turned off, when the user operates the remote control 1a again, a display screen that is different in content from a display screen the user saw last is displayed on the display unit 11. In this case, the user feels odd about the display screen the user saw last and the current display screen being not the same. On the other hand, in Modification 1, the display switches during the backlight 16 being lit. In this case, when the user operates the remote control 1a again, the display screen that is the same as the display screen the user saw last is displayed on the display unit 11, and thus, the user does not feel uncomfortable and the ease of operation of the remote control 1a is enhanced.
In the remote control 1a of Modification 1, the second time Tth2 for lighting of the backlight 16 after the user's last operation is longer than the first time Tth1 from a start of display of the enlarged display screen with the cover 14 open until the enlarged display screen is automatically switched to the detail display screen without the user's operation. Since the backlight 16 is turned off after the display unit 11 automatically performing switching of the display without the user's operation, and thus, the user can confirm the display after the switching during the backlight 16 being lit. Therefore, not only ease of viewing of the display on the display unit 11 for the user is enhanced, but also reliability of operation of the remote control 1a is also enhanced.
1, 1a remote control 2 air-conditioning apparatus body 10 transmission unit 11 display unit 12 outer button 13, 13a to 13e inner button 14 cover 15 cover opening/closing detection unit 16 backlight
20 control unit 21 input control unit 22 display switching unit 23 time measuring unit 24 irradiation control unit 110a first display panel
110
b second display panel 111a enlarged display screen 111b detail display screen.
Filing Document | Filing Date | Country | Kind |
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PCT/JP2018/005464 | 2/16/2018 | WO | 00 |