JP7402665B2 - Control device and water discharge system - Google Patents

Description

The present disclosure relates to a control device and a water discharging system.

Patent Document 1 discloses a shower head as a water discharging device used in bathrooms, washbasins, and the like. This shower head is configured to be able to switch the water discharge form in order to provide variations in the feel of the water flow to the user. This shower head includes a lever that allows you to manually switch the water discharge mode.

JP 2017-140069 Publication

Under the structure of Patent Document 1, after the water spouting form is manually switched, the same water spouting form continues unless the lever is manually and intentionally operated. Continuing the same spouting pattern while bathing in water causes users to get bored. The inventor of the present application has recognized that there is room for improvement regarding the technology disclosed in Patent Document 1 in order to make bathing more enjoyable.

One of the objectives of the present disclosure is to provide technology that can make bathing more enjoyable.

An aspect of the present disclosure for solving the above problems is a control device. In one embodiment, a control device is a control device for controlling a water discharging device, wherein the water discharging device corresponds to a plurality of water discharging portions each having at least one water spouting hole formed therein, and a water discharging device corresponding to each of the plurality of water spouting portions. This control includes a plurality of water passages that supply water to the water spout holes of the corresponding water spouting portions, and a plurality of on-off valves that correspond to each of the plurality of water passages and can open and close the corresponding water passages. The device can control the plurality of on-off valves, and can execute a switching water discharging mode in which the open/close states of the plurality of on-off valves are continuously switched.

It is a side cross-sectional view showing the usage scene of the water discharging system of a 1st embodiment. FIG. 1 is a configuration diagram of a water discharging system according to a first embodiment. It is a side view of the water discharge head of 1st Embodiment. FIG. 4 is a view of the water discharging head seen from arrow A in FIG. 3; FIG. 4 is a view of the water discharging head seen from arrow B in FIG. 3; It is an exploded view of the water discharge head of a 1st embodiment. It is a schematic diagram which shows the operating state of the water spouting device in continuous water spouting mode. 8 is a diagram showing details of the BB cross section in FIG. 7. FIG. It is a timing chart which schematically shows the relationship between the water flow rate of the water passage and the output signal output to the on-off valve. It is a schematic diagram which shows the operating state of the water spouting device in the switching water spouting mode. It is a timing chart which shows the transition of the water flow rate of each water passage in 1st Embodiment. FIG. 3 is an explanatory diagram of a switching cycle in the first embodiment. It is an explanatory diagram of a switching cycle in a 2nd embodiment. FIG. 5 is a diagram of the water discharging head of the third embodiment viewed from the same viewpoint as FIG. 4; It is an explanatory diagram of a switching cycle in a 3rd embodiment.

Embodiments will be described below. Identical components are given the same reference numerals and redundant explanations will be omitted. In each drawing, constituent elements are omitted, enlarged, or reduced as appropriate for convenience of explanation. The drawings should be viewed according to the direction of the symbols. The structures referred to in this specification naturally include not only structures that exactly match the mentioned structures, but also structures that are deviated by errors such as dimensional errors and manufacturing errors.

(First Embodiment) Refer to FIGS. 1 and 2. The water discharging system 10 of this embodiment is used for bathroom equipment. The water discharging system 10 includes a water discharging device 12, a control device 14 that controls the water discharging device 12, and operation units 16A and 16B operated by a user. The control device 14 will be described later.

The water discharging device 12 includes a water discharging head 18 and a water supply channel 20 that supplies water supplied from a water source to the water discharging head 18. The water source is, for example, a water supply, a water tank, or the like. Temperature-controlled water may be supplied to the water supply channel 20 through a temperature control valve.

The water discharge head 18 includes a plurality of water discharge parts 22A to 22D in which at least one water discharge hole (not shown in FIG. 2) is formed. The plurality of water spouts 22A to 22D of this embodiment include a first water spout 22A, a second water spout 22B, a third water spout 22C, and a fourth water spout 22D. Details of the water discharging head 18 and the water discharging sections 22A to 22D will be described later.

The water supply channel 20 includes a common water channel 24 provided on the upstream side of the water supply channel 20, and a plurality of water channels 26A to 26D provided on the downstream side of the common water channel 24 in the water supply channel 20. The common waterway 24 is commonly used by the plurality of waterways 26A to 26D. The plurality of water passages 26A to 26D branch from the common water passage 24. Water supplied from the water source is supplied through the common waterway 24 to each of the plurality of waterways 26A to 26D.

The plurality of water passages 26A to 26D correspond to the plurality of water spouts 22A to 22D, respectively, and supply water to the water spout holes of the corresponding water spouts 22A to 22D. The plural water passages 26A to 26D include a first water passage 26A corresponding to the first water spouting part 22A, a second water passage 26B corresponding to the second water spouting part 22B, and a third water passage corresponding to the third water spouting part 22C. It includes a waterway 26C and a fourth waterway 26D corresponding to the fourth water discharge part 22D.

The water discharging device 12 includes a plurality of on-off valves 28A to 28D that correspond to each of the plurality of water passages 26A to 26D and can open and close the corresponding water passages 26A to 26D. The on-off valves 28A to 28D are electrically driven valves such as electromagnetic valves and electric valves. The on-off valves 28A to 28D can switch their open/close states according to the output signal output from the control device 14.

The plurality of on-off valves 28A to 28D include a first on-off valve 28A corresponding to the first water passage 26A, a second on-off valve 28B corresponding to the second water passage 26B, and a third on-off valve corresponding to the third water passage 26C. It includes a valve 28C and a fourth on-off valve 28D corresponding to the fourth water passage 26D. Each of the on-off valves 28A to 28D also corresponds to the corresponding water passages 26A to 26D and the same water discharge portions 22A to 22D. For example, the first on-off valve 28A corresponds to the first water discharge section 22A, which is similar to the first water passage 26A.

The operation units 16A and 16B function as a user interface for inputting commands to the control device 14. The operation units 16A and 16B of this embodiment are push buttons. Specific examples of the operation units 16A and 16B are not particularly limited. The operation units 16A and 16B may also be, for example, non-contact sensors, touch panels, or the like. A user can input commands to the control device 14 by operating the operating units 16A and 16B. The operating units 16A and 16B include a first operating unit 16A that inputs an execution command for a continuous water spouting mode, which will be described later, and a second operating unit 16B, which inputs an execution command for a switching water spouting mode that will be described later.

Please refer to FIGS. 3 to 6. The water discharge head 18 of this embodiment is a shower head for an overhead shower. Water discharge head 18 is attached to external structure 30 . The external structure 30 of this embodiment is a wall that partitions an indoor space, more specifically, a ceiling wall.

The water spouting head 18 includes a water sprinkling member 34 in which a plurality of water spouting holes 32 are opened. The plurality of water spouting holes 32 open to a water sprinkling surface 36 provided on the outer surface of the water spouting head 18 . The outer surface of the water discharging head 18 is exposed to the indoor space. The water sprinkling surface 36 of this embodiment is provided so as to be flush with the inner wall surface 38 of the ceiling wall.

The plurality of water discharge holes 32 discharge water having a velocity component in the normal direction Pa of the water spray surface 36 (see FIG. 3). Regarding the water spouting direction of the water spouting hole 32, it is divided into a first component in the normal direction Pa of the water sprinkling surface 36 and a second component in the direction orthogonal to the normal direction Pa. At this time, the first component is set to be larger than the second component. In order to satisfy this condition, the water spouting direction of each water spouting hole 32 may be the same or different. The water spouting direction of each water spouting hole 32 in this embodiment is the same, and is along the normal direction Pa.

FIG. 4 is also a diagram seen from the normal direction Pa of the water spray surface 36. The plurality of water spouting parts 22A to 22D are constituted by a plurality of divided regions that are virtually divided into the water sprinkling surface 36 when viewed from the normal direction Pa of the water sprinkling surface 36. In FIG. 4, the range of each of the water spouting parts 22A to 22D is indicated by a two-dot chain line.

The second water spouting section 22B to the fourth water spouting section 22D of this embodiment are provided concentrically with the first water spouting section 22A as the center. The second water spouting portion 22B to the fourth water spouting portion 22D are provided in order toward the outside in the radial direction. When viewed from the normal direction Pa, the first water spouting portion 22A is formed by a solid portion, and the second water spouting portion 22B to the fourth water spouting portion 22D are formed from an annular portion. A plurality of water spouting holes 32 arranged in an annular manner are formed in the first water spouting section 22A of this embodiment. A plurality of water spouting holes 32 are formed in the second water spouting portion 22B to the fourth water spouting portion 22D in an annular arrangement centered on the first water spouting portion 22A. Hereinafter, discharging the water flow F from each of the water spouting holes 32 formed in the water spouting parts 22A to 22D will be simply referred to as "spraying water from the water spouting part".

The water discharge head 18 includes a plurality of channel forming members 40A to 40D corresponding to the plurality of water discharge parts 22A to 22D, respectively. The plurality of waterway forming members 40A to 40D include a first waterway forming member 40A corresponding to the first water spouting portion 22A, and a second waterway forming member 40B to the fourth waterway forming member 40B corresponding to the second water spouting portion 22B to the fourth water spouting portion 22D, respectively. 4 channel forming member 40D. The first water channel forming member 40A is a solid body when viewed from the normal direction Pa. The second water channel forming member 40B to the fourth water channel forming member 40D are annular bodies arranged concentrically around the first water channel forming member 40A.

The plurality of channel forming members 40A to 40D are housed in a housing section 42 formed on the back side of the water sprinkling member 34. Parts of water passages 26A to 26D corresponding to the plurality of water discharge portions 22A to 22D, respectively, are formed inside the water passage forming members 40A to 40D. The waterway forming members 40A to 40D include a pipe connection portion 44 to which a piping member forming a part of the waterway 26A to 26D is connected. Water is supplied into the water channel forming members 40A to 40D through the piping connection portion 44, and the water is supplied to the water spout holes 32 of the water spouting portions 22A to 22D corresponding to the water channel forming members 40A to 40D. FIG. 5 shows the direction of water flow inside the water channel forming members 40A to 40D.

Refer to FIGS. 7 and 8. FIG. 7 is also a side view of the water discharging head 18 with all the water discharging parts 22A to 22D in a water discharging state. The plurality of water spouting parts 22A to 22D spout bundle-shaped water streams F to corresponding areas 46A to 46D corresponding to each of the water spouting parts 22A to 22D. In FIG. 8, the range of each corresponding region 46A to 46D is indicated by a two-dot chain line. The corresponding areas 46A to 46D include a first corresponding area 46A corresponding to the first water spouting part 22A, and a second corresponding area 46B to a fourth corresponding area 46D corresponding to the second water spouting part 22B to the fourth water spouting part 22D. . The first corresponding area 46A is a solid area, and the second corresponding area 46B to the fourth corresponding area 46D are annular areas arranged concentrically with the first corresponding area 46A as the center. Each corresponding area 46A to 46D extends from the water sprinkling surface 36 in the normal direction Pa.

Each of the water spouting parts 22A to 22D spouts a water stream F to the corresponding area 46A to 46D so as to pass through a position according to the arrangement of its own water spouting hole 32. Each of the water spouting portions 22A of this embodiment spouts a water stream F to each of the corresponding regions 46A to 46D so as to pass through positions arranged in an annular manner according to the arrangement of the water spouting holes 32.

The distribution range of the water flow F in a cross section perpendicular to the flow direction of the water flow F discharged by the plurality of water discharge parts 22A to 22D is referred to as a water flow distribution range 48. FIG. 8 is a cross-sectional view that satisfies this condition. The water flow distribution range 48 is constituted by corresponding areas 46A to 46D of each of the water spouting parts 22A to 22D in a water spouting state. In this figure, all the water spouts 22A to 22D are in a water spouting state, and the water flow distribution range 48 is constituted by the corresponding areas 46A to 46D of all the water spouts 22A to 22D.

Let's move on to the explanation of the control device 14. The control device 14 is a computer that combines hardware such as a CPU, ROM, and RAM and software such as a program. The control device 14 controls the water discharging device 12 according to a preset program.

The control device 14 can control the opening and closing states of the plurality of on-off valves 28A to 28D. See FIG. 9. In this specification, the horizontal axis of the timing chart indicates elapsed time. Q indicates the flow rate of water passing through the water passages 26A to 26D (hereinafter referred to as water flow rate) (m ³ /s), and V is the output output to the on-off valves 28A to 28D corresponding to the water passages 26A to 26D. Show signal. The output signal of this embodiment is a voltage signal. The control device 14 of this embodiment opens the water passages 26A to 26D with the on-off valves 28A to 28D by outputting a high-level voltage signal, and opens the water passages 26A to 26D with the on-off valves 28A to 28D by outputting a low-level voltage signal. Close water channels 26A to 26D.

When the on-off valves 28A to 28D are in the open state to open the water passages 26A to 26D, water is supplied to the water spouting parts 22A to 22D corresponding to the water passages 26A to 26D, and the water spouting parts 22A to 22D are in a water spouting state. When the on-off valves 28A to 28D are in the closed state to close the water passages 26A to 26D, the water supply to the water spouting parts 22A to 22D corresponding to the water passages 26A to 26D is stopped, and the water spouting operation of the water spouting parts 22A to 22D is stopped. The water will stop.

The control device 14 can execute the continuous water spouting mode and the switching water spouting mode by controlling the opening and closing states of the plurality of on-off valves 28A to 28D. The continuous water spouting mode is a mode in which the same water spouting mode continues as shown in FIG. The switching water spouting mode is a mode in which the water spouting mode is continuously switched as shown in FIG.

The control device 14 starts executing the continuous water spouting mode when a predetermined first start condition is satisfied. The first start condition is, for example, that an execution command for the continuous water spouting mode is input through the user's operation of the first operation unit 16A. The control device 14 starts executing the switching water spouting mode when a predetermined second start condition is satisfied. The second start condition is, for example, that an execution command for the switching water spouting mode is input through the user's operation of the second operation unit 16B. When a predetermined stop condition is satisfied, the control device 14 stops execution of the continuous water spouting mode and the switching water spouting mode. The predetermined stop condition is, for example, that an execution command similar to the start condition is input.

The continuous water spouting mode is realized by maintaining at least one of the water spouting units 22A to 22D in a water spouting state. This is achieved by maintaining open/close valves 28A to 28D corresponding to the water spouting sections 22A to 22D to be in the water spouting state. The control device 14 of this embodiment maintains all the on-off valves 28A to 28D in the open state in the continuous water discharging mode. As a result, all the water spouting parts 22A to 22D corresponding to all the on-off valves 28A to 28D are maintained in the water spouting state.

The switching water discharging mode is realized by continuously switching the open/close states of the plurality of on-off valves 28A to 28D. As a result, the water flow distribution range 48 of the water discharging device 12 changes sequentially every time the open/close states of the plurality of on-off valves 28A to 28D are switched. FIG. 10 shows an example in which the water flow distribution range gradually increases and then returns to its original value.

Refer to FIGS. 11 and 12. Each of Q _A to Q _D indicates the water flow rate of each of the first water passage 26A to the fourth water passage 26D. When the water flow rate of each water passage 26A to 26D is zero, the on-off valves 28A to 28D corresponding to the water passages 26A to 26D are in a closed state. When the water flow rate of each water passage 26A to 26D exceeds zero, the on-off valves 28A to 28D corresponding to the water passages 26A to 26D are in an open state.

In the switching water discharging mode, the control device 14 of this embodiment switches the open/close states of the plurality of on-off valves 28A to 28D in a predetermined order. The combination of open and close states of the plurality of on-off valves 28A to 28D is called an open-close pattern. A series of operations for switching between multiple predetermined opening/closing patterns in a predetermined order is called a switching cycle. The control device 14 of this embodiment controls the plurality of on-off valves 28A to 28D to repeat the switching cycle in the switching water discharging mode. In the switching water discharging mode, the control device 14 controls the plurality of on-off valves 28A to 28D so as to sequentially switch to a plurality of opening and closing patterns.

The control device 14 of this embodiment executes one switching cycle every predetermined cycle period ta. In FIGS. 11 and 12, the plurality of on-off valves 28A are arranged in the order of the first opening/closing pattern of the first period ta1 → the second opening/closing pattern of the second period ta2 → the third opening/closing pattern of the third period ta3 → the fourth opening/closing pattern. 28D shows a switching cycle for switching between open and closed states. The upper part of FIG. 12 shows the transition of the water flow distribution range 48 in the switching cycle. The water flow distribution range 48 is hatched. The middle part of FIG. 12 shows the transition of the water flow F as seen from the viewpoint of FIG. The lower part of FIG. 12 shows a timing chart of the flow rate of water through each of the water passages 26A to 26D in the switching cycle.

In the first opening/closing pattern, the first opening/closing valve 28A and the second opening/closing valve 28B are opened, and the remaining opening/closing valves 28C and 28D are closed. In the second opening/closing pattern, the second opening/closing valve 28B and the third opening/closing valve 28C are opened, and the remaining opening/closing valves 28D, 28A are closed. In the third opening/closing pattern, the third opening/closing valve 28C and the fourth opening/closing valve 28D are opened, and the remaining opening/closing valves 28A, 28B are closed. In the fourth opening/closing pattern, the fourth opening/closing valve 28D and the first opening/closing valve 28A are opened, and the remaining opening/closing valves 28B and 28C are closed. In this manner, the control device 14 switches each of the plurality of on-off valves 28A to 28D to the open state at least once in the switching cycle.

When in the first opening/closing pattern, the first water discharging section 22A and the second water discharging section 22B corresponding to the first on-off valve 28A and the second on-off valve 28B are in a water discharging state. At this time, the water discharging device 12 discharges the water flow F into the water flow distribution range 48 constituted by the corresponding regions 46A and 46B of the first water discharging section 22A and the second water discharging section 22B. This water flow distribution range 48 becomes the first maximum external dimension L1.

When in the second opening/closing pattern, the second water spouting part 22B and the third water spouting part 22C corresponding to the second opening/closing valve 28B and the third opening/closing valve 28C are in a water spouting state. At this time, the water discharging device 12 discharges the water flow F into the water flow distribution range 48 constituted by the corresponding regions 46B and 46C of the second water discharging section 22B and the third water discharging section 22C. This water flow distribution range 48 has a second maximum external dimension L2 that is larger than the first maximum external dimension L1.

When in the third opening/closing pattern, the third water spouting part 22C and the fourth water spouting part 22D corresponding to the third opening/closing valve 28C and the fourth opening/closing valve 28D are in a water spouting state. At this time, the water discharging device 12 discharges the water flow F into the water flow distribution range 48 constituted by the corresponding regions 46C and 46D of the third water discharging section 22C and the fourth water discharging section 22D. This water flow distribution range 48 has a third maximum external dimension L3 that is larger than the second maximum external dimension L2.

When in the fourth opening/closing pattern, the fourth water spouting part 22D and the first water spouting part 22A corresponding to the fourth opening/closing valve 28D and the first opening/closing valve 28A are in a water spouting state. At this time, the water discharging device 12 discharges the water flow F into the water flow distribution range 48 constituted by the corresponding regions 46D and 46A of the fourth water discharging section 22D and the first water discharging section 22A. This water flow distribution range 48 becomes the third maximum external dimension L3, as in the third opening/closing pattern.

By performing the above switching cycle, the water flow distribution range 48 changes sequentially every time the open/close states of the plurality of on-off valves 28A to 28D are switched. The plurality of water discharge parts 22A to 22D are configured to be able to increase or decrease the water flow distribution range according to the open/closed states of the plurality of on-off valves 28A to 28D. By sequentially changing the water flow distribution range 48, the position where the water flow F hits the user can be dynamically changed.

The water flow distribution range 48 changes to increase or decrease in the switching water discharging mode. Specifically, the water flow distribution range 48 gradually increases and then returns to its original value in one switching cycle. The control device 14 controls the opening and closing states of the plurality of on-off valves 28A to 28D so as to satisfy such conditions.

In this embodiment, the plurality of opening/closing patterns are set so that at least one and at most two opening/closing valves 28A to 28D are in an open state. This condition is satisfied in a plurality of opening/closing patterns (all opening/closing patterns in this embodiment) belonging to the switching cycle. The plurality of opening/closing patterns are set so that at least one of the opening/closing valves 28A to 28D is in a closed state. This condition is satisfied in a plurality of opening/closing patterns (all opening/closing patterns in this embodiment) belonging to the switching cycle. This makes it possible to reduce the number of water spouting parts 22A to 22D that are in the water spouting state in a plurality of opening/closing patterns, and a water saving effect can be expected.

The effects of the above points will be explained. The control device 14 is capable of executing a switching water discharging mode in which the open/close states of the plurality of on-off valves 28A to 28D are continuously switched. Therefore, after the switching water spouting mode is executed by the control device 14, the water spouting form can be continuously and automatically switched without any intentional operation by the user. Thereby, the feeling of contact caused by the water flow F discharged from the water discharge device 12 can be dynamically changed. Therefore, compared to a case where the same water spouting pattern continues during bathing, the user is less likely to get bored and can enjoy bathing even more. In addition, it is possible to realize a massage in which the position where the water flow F hits the user dynamically changes.

The water discharging device 12 includes a water discharging head 18 that includes a plurality of water discharging sections 22A to 22D. Therefore, the above-mentioned switching water spouting mode can be realized by a single water spouting head 18. Thereby, the number of parts required for the water spouting system 10 can be reduced compared to the case where the switching water spouting mode is realized by a plurality of water spewing heads 18.

Next, other points of improvement of the water discharging system 10 will be explained. Refer to FIG. 12. In the switching water discharging mode, when closing any one of the plurality of on-off valves 28A to 28D, the control device 14 maintains the other on-off valves 28A to 28D in an open state. For example, at time tb, when closing the first on-off valve 28A, the second on-off valve 28B is maintained in the open state. The control device 14 of this embodiment targets two or more on-off valves 28A to 28D (more specifically, all on-off valves 28A to 28D) among the plurality of on-off valves 28A to 28D. A similar control is executed when closing ~28D.

(A) Explain this advantage. When the on-off valves 28A to 28D close the water passages 26A to 26D, the inertia of the water flowing in the water passages 26A to 26D generates water hammer, which increases the water pressure in the water passages 26A to 26D. According to this embodiment, when the on-off valves 28A to 28D close the water passages 26A to 26D, water that tends to flow into the water passages 26A to 26D due to inertia is transferred to the other water passages 26A to 26D which are in an open state. can be released to As a result, even when the on-off valves 28A to 28D close the water passages 26A to 26D, an increase in water pressure within the water passages 26A to 26D can be suppressed. Accordingly, in addition to reducing the strength required of the piping members constituting the water passages 26A to 26D, it is possible to reduce noise caused by an increase in water pressure.

In the switching water discharging mode, the control device 14 performs synchronization control that synchronizes the timing of closing one of the plurality of on-off valves 28A to 28D and the timing of opening the other on-off valves 28A to 28D. Execute. For example, at time tb, the timing to close the first on-off valve 28A and the timing to open the third on-off valve 28C are synchronized. The control device 14 of this embodiment targets two or more on-off valves 28A to 28D (more specifically, all on-off valves 28A to 28D) among the plurality of on-off valves 28A to 28D. - Synchronous control is executed when closing 28D.

(B) This reduces the number of times the operating noise of the on-off valves 28A-28D occurs over time, compared to the case where the timing to close the on-off valves 28A to 28D and the timing to open other on-off valves 28A to 28D are shifted. can be reduced. As a result, quietness can be improved.

The control device 14 of this embodiment executes this synchronous control while maintaining the on-off valves 28A to 28D in the open state. For example, at time tb, the timing to open the first on-off valve 28A and the timing to open the third on-off valve 28C are synchronized while the second on-off valve 28B is maintained in the open state. As a result, both of the effects described in (A) and (B) above can be obtained.

(Second Embodiment) Refer to FIG. 13. In the switching water discharging mode, the control device 14 of this embodiment continuously switches the open/close states of the other on-off valves 28A-28D while keeping at least one on-off valve 28A-28D open at all times. In the illustrated example, "at least one on-off valve 28A to 28D" here is the first on-off valve 28A. The method of switching the open/close states of the second on-off valve 28B to the fourth on-off valve 28D is the same as in the example of FIG. 13.

As a result, the water spouting section 22A (first water spouting section 22A in FIG. 13) corresponding to the on-off valve 28A that is always in the open state is in the constant water spouting state. Accordingly, the water flow distribution range 48 always includes the corresponding area 46A of the water spouting section 22A, which is always in a water spouting state. The other corresponding regions 46B to 46D included in the water flow distribution range 48 sequentially change depending on the open/closed states of the other on-off valves 28B to 28D. Therefore, while keeping the contact position of the water stream F spouted by the water spouting section 22A, which is always in the water spouting state, constant, it is possible to dynamically change the contact position of the water flow F spouted by the other water spouting sections 22B to 22D. Accordingly, the user is less likely to get tired of bathing, and can enjoy bathing even more.

(Third Embodiment) Refer to FIG. 14. Different from the example of FIG. 4, the plurality of water spouting units 22A to 22D of this embodiment are arranged in order on the water sprinkling surface 36 in a line direction Pb perpendicular to the normal direction Pa of the water sprinkling surface 36 (direction orthogonal to the plane of the drawing). ing.

See FIG. 15. The control device 14 of this embodiment also controls the open/close states of the plurality of on-off valves 28A to 28D using the same switching cycle as the control device 14 of the first embodiment. When in the first opening/closing pattern, water flow F is discharged into a water flow distribution range 48 constituted by corresponding regions 46A and 46B of the first water discharge section 22A and the second water discharge section 22B. When in the second opening/closing pattern, the water flow F is discharged into the water flow distribution range 48 constituted by the corresponding regions 46B and 46C of the second water discharge section 22B and the third water discharge section 22C. When in the third opening/closing pattern, the water flow F is discharged into the water flow distribution range 48 constituted by the corresponding regions 46C and 46D of the third water discharge section 22C and the fourth water discharge section 22D. When in the fourth opening/closing pattern, the water flow F is discharged into the water flow distribution range 48 constituted by the corresponding regions 46D and 46A of the fourth water discharge section 22D and the first water discharge section 22A. The position of the water flow distribution range 48 changes so that each time the opening/closing pattern is switched, it sequentially shifts in the above-mentioned arrangement direction Pb and then returns to the original position.

In this way, the arrangement of the plurality of water spouting parts 22A to 22D is not particularly limited. In addition to this, the manner in which the water flow distribution range 48 changes is not particularly limited.

Other modifications of each component will be explained.

The water discharging system 10 is not limited to bathroom equipment, and may be used for hand washing equipment, kitchen equipment, and the like.

Unlike the embodiment, the water discharging head 18 may be a shower head for a hand shower. The water sprinkling surface 36 of the water spouting head 18 may be provided at a position spaced apart from the ceiling wall.

The plurality of water discharging parts 22A to 22D may be individually provided in the plurality of water discharging heads 18, unlike the embodiment.

Unlike the embodiment, the plurality of on-off valves 28A to 28D may be provided in the indoor space. In this case, the plurality of on-off valves 28A to 28D may be provided inside the water spouting head 18.

Unlike the embodiment, the control device 14 may switch the open/close states of the plurality of on-off valves 28A to 28D in a random order. Specific examples of the opening/closing pattern are not particularly limited. The plurality of opening/closing patterns may include, for example, an opening/closing pattern in which all the opening/closing valves 28A to 28D are in a closed state. The number of opening/closing patterns belonging to a switching cycle is not particularly limited. The number of opening/closing patterns may be two, three, five or more, unlike the embodiment. In the embodiment, an example has been described in which the periods ta1 to ta4 of each opening/closing pattern have the same length. In addition, the periods ta1 to ta4 of each opening/closing pattern may have different lengths.

When the control device 14 closes any one of the plurality of on-off valves 28A to 28D, it may maintain all the other on-off valves 28A to 28D in a closed state. The control device 14 may control the plurality of on-off valves 28A to 28D so that the water flow distribution range gradually decreases and then returns to its original size.

The embodiments and modifications have been described above in detail. In understanding the technical idea that abstracts the embodiment and the modified example, the technical idea should not be interpreted to be limited to the content of the embodiment and the modified example. The embodiments and modifications described above are merely specific examples. The content of the embodiments and modifications may be subject to many design changes such as changes, additions, and deletions of constituent elements. In the embodiments described above, the content that allows such design changes is emphasized by adding the notation "embodiment". However, design changes are allowed even if there is no such notation. The hatching added to the cross section of the drawing does not limit the material of the hatched object. Any combination of the above components is also effective. For example, any description of the modification may be combined with the embodiment.

DESCRIPTION OF SYMBOLS 10... Water discharging system, 12... Water discharging device, 14... Control device, 18... Water discharging head, 22A-22D... Water discharging part, 26A-26D... Water passage, 28A-28D... Opening/closing valve, 32... Water discharging hole.

Claims (8)

A control device for controlling a water discharging device,
The water discharging device includes:
a water spouting head comprising a plurality of water spouting parts each having at least one water spouting hole formed therein;
a plurality of water passages corresponding to each of the plurality of water spouting parts and supplying water to the water spouting hole of the corresponding water spouting part;
A plurality of on-off valves corresponding to each of the plurality of water passages and capable of opening and closing the corresponding water passage,
The present control device is capable of controlling the plurality of on-off valves, and is capable of executing a switching water discharging mode in which the open/close states of the plurality of on-off valves are continuously switched. The water discharging device further includes a common waterway that is provided on the upstream side of the plurality of waterways and is used in common for the plurality of waterways,
2. The control device according to claim 1, wherein when closing any one of the plurality of on-off valves in the switching water discharging mode, the control device maintains the other on-off valve in an open state. Each of the plurality of water discharge parts is provided concentrically,
A plurality of water spouting holes arranged in an annular manner are formed in each of the plurality of water spouting parts,
Each of the plurality of water spouting parts discharges a water stream so as to pass through a position arranged in an annular manner as a position according to an arrangement mode of the plurality of water spouting holes formed in each of the plurality of water spouting parts.
The control device according to claim 1 or 2. 4. Any one of claims 1 to 3 , wherein the control device synchronizes the timing of closing one of the plurality of on-off valves and the timing of opening the other on-off valve in the switching water discharging mode. The control device described in Section. The present control device controls the plurality of on-off valves so as to sequentially switch to the plurality of on-off patterns in the switching water discharging mode, when a combination of the open and closed states of each of the plurality of on-off valves is referred to as an on-off pattern,
The control device according to any one of claims 1 to 4 , wherein each of the plurality of opening/closing patterns is set so that at least one of the opening/closing valves is in a closed state. 6. The control device according to claim 1 , wherein in the switching water discharging mode, while maintaining at least one of the on-off valves in an open state, the other on-off valves are continuously switched between open and closed states. control device. The plurality of water spouts are configured to be able to increase or decrease the distribution range of the water flow discharged by the plurality of water spouts according to the opening/closing state of the plurality of on-off valves,
The control device according to any one of claims 1 to 6 , wherein the control device controls the opening and closing states of the plurality of on-off valves so that the distribution range increases or decreases in the switching water discharging mode. A control device according to any one of claims 1 to 7 ,
A water discharging system comprising the water discharging device according to any one of claims 1 to 7 .

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