Valve device

Abstract

A valve device includes an inlet, an outlet connected to the inlet, a valve member, and an actuator. The valve member has an open position in which fluid can flow from the inlet to the outlet and a closed position in which fluid cannot flow from the inlet to the outlet. The actuator selectively actuates the valve member and has an open actuator position and a closed actuator position. The valve has a first mode of operation in which the actuator is fixed in an open actuator position and the valve member is in an open valve position throughout a range of operating values of the inlet pressure. In a second mode of operation, when the inlet pressure exceeds a second threshold inlet pressure, the actuator switches from the closed actuator position to the open actuator position, switching the valve member from the closed valve position to the open valve position.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of priority of UK patent application No. 2311259.2 filed on July 21, 2023, the entire disclosure of which is incorporated herein by reference. Technical Field

[0003] The present disclosure relates to a valve device, in particular but not limited to a fluid delivery device, in particular but not limited to a shower head, such as a shower head or a faucet. The present disclosure also relates to a fluid delivery device comprising one or more such valve devices. The present disclosure also relates to a method of operating a fluid delivery device. Background Art

[0004] In the shower industry, solenoid valves are used to turn the water flow on / off. Many of these valves can be used in conjunction with shower heads to allow switching between different spray modes.

[0005] When a solenoid valve is in the closed position, pressure buildup may occur upstream of the valve. If the pressure is excessive, it may damage the sprinkler, causing leaks and other adverse effects. If many or all of the solenoid valves in a sprinkler are in the closed position, they may act as a blockage, causing main water pressure to build up in the sprinkler and water supply piping. Therefore, higher grade materials and more robust components may be required in these areas than in other areas. Increased material requirements may have negative environmental impacts and / or be associated with increased costs.

[0006] In addition, such conventional solenoid valves may have increased maintenance requirements. With conventional solenoid valves, inlet pressure acts to push the valve member closed. Therefore, once sufficient inlet pressure builds up behind the valve in the closed position, it may be difficult or impossible to overcome the inlet pressure to switch the valve to the open position. In such a case, the valve becomes stuck in the closed position and may require manual pressure relief (e.g., by disconnecting the valve from the system) to allow the valve to open. Summary of the invention

[0007] The present invention discloses a valve device, comprising:

[0008] an inlet, the inlet being used to receive a fluid from a fluid supply device, the fluid having an inlet pressure;

[0009] an outlet selectively fluidly connected to the inlet;

[0010] a valve member having an open valve position in which the inlet is in fluid communication with the outlet and a closed valve position in which the inlet is not in fluid communication with the outlet; and

[0011] an actuator that selectively actuates the valve member, the actuator having an open actuator position and a closed actuator position, wherein the valve arrangement is operable over a range of operating values ​​of inlet pressure that includes a first threshold inlet pressure and a second threshold inlet pressure,

[0012] The valve device comprises:

[0013] a first operating mode in which, throughout the operating value range of the inlet pressure, the actuator is fixed in the open actuator position and the valve member is in the open valve position; and

[0014] A second operating mode in which the actuator switches from the closed actuator position to the open actuator position to switch the valve member from the closed valve position to the open valve position when the inlet pressure exceeds the second threshold inlet pressure.

[0015] The present invention also discloses a fluid conveying device, comprising:

[0016] At least one valve device; comprising:

[0017] Entrance;

[0018] an outlet selectively fluidly connected to the inlet;

[0019] a valve member having an open valve position in which the inlet is in fluid communication with the outlet and a closed valve position in which the inlet is not in fluid communication with the outlet; and

[0020] an actuator that selectively actuates the valve member, the actuator having an open actuator position and a closed actuator position, wherein the valve arrangement is operable over a range of operating values ​​of inlet pressure including a first threshold inlet pressure and a second threshold inlet pressure,

[0021] The valve device comprises:

[0022] a first operating mode in which the actuator is fixed in the open actuator position and the valve member is in the open valve position throughout the operating value range of the inlet pressure; and

[0023] a second operating mode in which the actuator switches from the closed actuator position to the open actuator position to switch the valve member from the closed valve position to the open valve position when the inlet pressure exceeds the second threshold inlet pressure;

[0024] a fluid delivery device inlet fluidly connected to a fluid supply conduit;

[0025] At least one set of fluid delivery device outlets receives fluid from the fluid supply conduit via the outlet of one of the at least one valve device.

[0026] The invention also discloses a bathing system, comprising:

[0027] The fluid delivery device as described above; and

[0028] a user interface for controlling one or more characteristics of flow from the fluid supply conduit to the fluid delivery device,

[0029] Wherein the user interface is operably connected to the controller. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Exemplary embodiments will now be described with reference to the accompanying drawings, in which:

[0031] Figure 1 A cross-sectional view of an exemplary valve arrangement in a first operating mode is illustrated.

[0032] Figure 2 A cross-sectional view of an exemplary valve arrangement in a second mode of operation is illustrated.

[0033] Figure 3 A cross-sectional view of an exemplary valve arrangement in a second mode of operation is illustrated.

[0034] Figure 4 A cross-sectional view of an exemplary valve arrangement in a second mode of operation is illustrated.

[0035] Figure 5 A table of parameters representing the output of an exemplary valve arrangement is illustrated.

[0036] Figure 6 A cross-sectional view of an exemplary showerhead is illustrated.

[0037] Figure 7 A cross-sectional view of an exemplary showerhead is illustrated.

[0038] Figure 8 A cross-sectional view of an exemplary showerhead is illustrated.

[0039] Fig. 9 The diagram shows a system for installation in a bathing environment. DETAILED DESCRIPTION

[0040] Figure 1A valve device 1 for a fluid delivery device such as a bath or plumbing device is shown. The valve device 1 comprises an inlet 2 for receiving a fluid from a fluid supply device (not shown). The fluid flow in the inlet 2 is characterized by an inlet pressure. The valve device 1 is operable within a range of operating values ​​of the inlet pressure. The valve device 1 further comprises an outlet 3, which is selectively fluidically connected to the inlet 2. In the present example, the inlet 2 and the outlet 3 are generally tubular, the inlet 2 having an annular shape and surrounding the circumference of the outlet 3.

[0041] The valve device 1 comprises a valve member 4, which selectively realizes a fluid connection between an inlet 2 and an outlet 3. An end of the valve member 4 facing the outlet 3 defines a valve seat 34, which is configured to cooperate with a front surface 4' of the valve member 4. The valve member 4 comprises a translatable plate 40, which is supported around its periphery by a flexible sheet 41. The flexible sheet 41 is coupled to the translatable plate 40 and an end of the valve member 4 near the inlet 2.

[0042] The valve device 1 further includes a chamber 7 adjacent to the valve member 4. In the present example, a rear surface 4″ (rear surface of the flexible sheet 41 and the translatable plate 40) of the valve member 4 opposite to the front surface 4′ defines a boundary of the chamber 7. The flexible sheet 41 and the translatable plate 40 are substantially impermeable to fluid from the fluid supply device. The flexible sheet 41 seals the inlet 2 and the end of the translatable plate 40 together, preventing the fluid from entering the chamber 7 between the flexible sheet 41 and the translatable plate 40 from the inlet 2.

[0043] The chamber 7 is fluidly connected to the inlet 2 via a channel 42. In this arrangement, the channel 42 consists of a through hole in the translatable plate 40. The channel 42 allows fluid to flow from the inlet 2 into the chamber 7. The fluid in the chamber 7 has a "chamber pressure" which represents the fluid pressure of the fluid in the chamber 7.

[0044] The inlet pressure acts on the first effective area 4a of the front surface 4' of the valve member 4 to generate the inlet pressure force. Similarly, the chamber pressure acts on the second effective area 4" of the rear surface 4" of the valve member 4 to generate the chamber pressure force, which acts to counteract the inlet pressure force. Figure 1 As shown, the first effective area 4a and the second effective area 4b can be measured as contact areas perpendicular to the direction of translation of the translatable plate 40. When there is a difference in the values ​​of the inlet pressure force and the chamber pressure force, it means that there is a (non-zero) pressure differential force acting on the valve member 4.

[0045] The valve member 4 has a plurality of operating positions, including an open valve position and a closed valve position. The operating position of the valve member 4 is determined by the pressure differential force.

[0046] exist Figure 1In the figure, the valve member 4 is shown in the open valve position. As shown in the figure, when the valve member 4 is in the open valve position, there is a gap 43 between the front surface 4' of the valve member 4 and the valve seat 34. Figure 1 As shown by the dashed arrow in , the gap 43 enables a fluid connection between the inlet 2 and the outlet 3. This represents a first flow path 51 through which the inlet 2 is selectively fluidly connected to the outlet 3.

[0047] The valve device 1 further comprises a conduit 9 which selectively fluidly connects the chamber 7 to the outlet 3. The channel 42, the chamber 7 and the conduit 9 together define a second flow path 52 through which the inlet 2 is selectively fluidly connected to the outlet 3.

[0048] The valve device 1 further comprises an actuator 6 for selectively actuating the valve member 4 between an open valve position and a closed valve position. As described below, such actuation is achieved by varying the pressure difference between the chamber pressure and the inlet pressure.

[0049] The actuator 6 is an electromagnetically controlled part having an open actuator position, a partially open actuator position and a closed actuator position. The actuator 6 comprises an armature 60, an armature seat 63 and a solenoid 68. The armature 60 is a movable element arranged to selectively block and clear the conduit 9.

[0050] The armature 60 is operably connected to a resilient member. In this example, the resilient member comprises a coil spring 64. The actuator 6 is configured so that the resilient member (e.g., coil spring 64) is in a compressed state. This compression generates a reaction force in the coil spring 64, which acts to move the armature 60 toward the armature seat 63. The actuator 6 is arranged so that when the solenoid 68 is energized, the electromagnetic force of the solenoid 68 on the armature 60 acts to counteract the reaction force of the coil spring 64. The position of the armature 60 is determined by the balance of forces acting on the armature 60.

[0051] The valve device 1 further comprises a controller 65 operable to switch between operating modes of the valve device 1. The controller 65 is wirelessly connected to the actuator 6 and is operable to open (first operating mode of the valve device 1) and close (second operating mode of the valve device 1) the solenoid 68.

[0052] In this example, the controller 65 is a digital controller that includes a memory 66 operable to store operating mode switching data. For example, the switching data may represent a pattern of switching over time. Each pattern may be associated with a different spray mode of a fluid delivery device in which the valve device 1 may be installed. The controller 65 may be operable to select a pattern based on additional data such as temperature, time of day, and / or identification data. For example, the controller 65 may be programmed so that it runs a specific switching pattern when a specific user is identified and a specific spray mode is selected.

[0053] exist Figure 1 , the valve device 1 is shown in a first operating mode. The first operating mode may correspond to a user demand to open the valve. In this embodiment, the first operating mode is characterized in that the solenoid 68 is energized, and the electromagnetic force exceeds the reaction force of the coil spring 64, resulting in a separation 62 between the armature 60 and the armature seat 63. The separation 62 enables the inlet 2 and the outlet 3 to be fluidly connected via the second flow path 52. In this state, the armature 60 does not block the conduit 9, and the actuator 6 is considered to be in the open actuator position.

[0054] The actuator 6 is operable to selectively actuate the valve member 4 between an open valve position and a closed valve position by changing a fluid pressure differential across the valve member 4. When the valve device 1 is in the first operating mode, the actuator 6 is in the open actuator position (as described above). Considering the second flow path 52, fluid flows from the inlet 2 via the channel 42 into the chamber 7. This fluid is then directed along the conduit 9 (via the armature 60) to the outlet 3.

[0055] In this example, the conduit 9 comprises a reduced area portion 90. The reduced area portion 90 has the smallest cross-sectional area of ​​the conduit 9. The passage 42 comprises another reduced area portion 44. The other reduced area portion 44 has the smallest cross-sectional area of ​​the passage 42. The reduced area portion 90 has a larger cross-sectional area than the other reduced area portion 44.

[0056] The minimum cross-sectional area of ​​the conduit 9 is greater than the minimum cross-sectional area of ​​the passage 42. Therefore, the chamber pressure behind the valve member 4 (i.e., in the chamber 7) is less than the inlet pressure acting on the front surface 4' of the valve member 4. This pressure imbalance generates a pressure imbalance force, which acts to move the valve member 4 away from the valve seat 34. Therefore, when the actuator 6 is in the open actuator position, the valve member 4 is pushed to the open valve position. This is true at all (non-zero) operating values ​​of the inlet pressure. Therefore, when the valve device 1 is in the first operating mode, the fluid is output from the outlet 3 because the inlet 2 is fluidically connected to the outlet 3 via the first flow path (and independently via the second flow path).

[0057] In the present example, the valve device 1 further comprises an elastic member. As described later, when the valve member 4 is in the closed valve position, the elastic member ensures a complete seal between the valve member 4 and the valve seat 34. In the present example, the elastic member is a spring 74, which extends through the chamber 7. The spring 74 is connected to the rear surface 4″ of the valve member 4 and the periphery of the chamber 7, and provides an elastic force, which serves to bias the valve member 4 toward the valve seat 34. The balance of forces between the pressure differential force and the elastic force of the spring 74 determines the operating position of the valve member 4. When the valve device 1 is in the first operating mode, the elastic force of the spring 74 is significantly smaller than the pressure imbalance force and is overcome by the pressure imbalance force.

[0058] It will be appreciated that the spring 74 is only an example and that there are many suitable alternative resilient members. For example, the resilient force may be provided by the flexible membrane 41. In alternative arrangements, the resilient member may be omitted entirely.

[0059] Upon receiving a user request to close the valve, the controller 65 may switch the operation mode of the valve arrangement 1 from the first operation mode to the second operation mode.

[0060] Figure 2 shows the operation in the second operating mode Figure 1 The second operating mode may correspond to a user request to close the valve. Figure 2 As shown, solenoid 68 is not energized.

[0061] As previously described, the position of the armature 60 is determined by the balance of forces acting on the armature 60. Since the solenoid 68 is not energized, the electromagnetic force of the solenoid does not act on the armature 60. The reaction force of the coil spring 64 acts to move the armature 60 toward the armature seat 63. The fluid in the conduit 9 exerts an opposing force on the front surface 60' of the armature 60.

[0062] exist Figure 2 , the valve device 1 is shown when the inlet pressure is less than the first threshold inlet pressure. When the inlet pressure is less than the first threshold inlet pressure, the opposing force of the fluid in the conduit 9 of the front surface 60' is less than the reaction force of the coil spring 64. In the absence of the electromagnetic force of the solenoid, the reaction force of the coil spring 64 overcomes the opposing force of the fluid in the conduit 9 to move the armature 60 toward the armature seat 63. Figure 2 As shown, the front surface 60' of the armature 60 contacts the armature seat 63, so there is no separation between the armature 60 and the armature seat 63. In this configuration, the actuator 6 is said to be in the closed actuator position.

[0063] In the closed actuator position, a seal is formed between the front surface 60' of the armature 60 and the armature seat 63. This effectively blocks the conduit 9 and prevents fluid flow from the inlet 2 to the outlet 3 through the second flow path 52.

[0064] For greater clarity, Figure 2 The portion of the second flow path 52 that is not fluidly connected to the inlet 2 is shown in grey (rather than black).

[0065] As shown, when the actuator 6 is in the closed actuator position, the fluid flows into the chamber 7 via the passage 42 until the chamber pressure equals the inlet pressure. The valve device is configured so that the first effective area 4a on which the inlet pressure acts is smaller than the second effective area 4b on which the chamber pressure acts. Considering the forces acting on the valve member 4, when the chamber pressure equals the inlet pressure, the pressure differential force will not be zero and will act to bias the valve member 4 towards the valve seat 34 due to the difference between the first effective area 4a and the second effective area 4b. Figure 2 As shown, the front surface 4' of the valve member 4 contacts the valve seat 34. In this state, the valve member 4 is said to be in the closed valve position.

[0066] When the valve member 4 is in the closed valve position, there is no gap between the front surface 4' of the valve member 4 and the end of the valve member 4 facing the outlet 3. Therefore, when the valve member 4 is in the closed valve position, the inlet 2 is not fluidly connected to the outlet 3 via the first fluid path 51.

[0067] The elastic force of the spring 74 further serves to bias the valve member 4 toward the valve seat 34. This ensures that the front surface 4' of the valve member 4 is completely sealed with the valve seat 34 to prevent fluid from entering therein.

[0068] Figure 2 The portion of the first flow path 51 which is not fluidly connected to the inlet 2 is shown in grey (rather than black).

[0069] When the valve device 1 is in the second operation mode and the inlet pressure is less than the first threshold inlet pressure, the inlet 2 is not connected to the outlet 3 via the first flow path 51 or the second flow path 52. In this state, no fluid is output from the outlet 3.

[0070] Figure 3 6 shows a cross-sectional view of the valve device 1 in a second mode of operation when the inlet pressure is greater than a first threshold inlet pressure. At this inlet pressure, the force of the fluid in the conduit 9 acting on the front surface 60' of the armature 60 exceeds the reaction force of the coil spring 64. The coil spring 64 compresses, causing the armature 60 to translate in a first direction (as indicated by block arrow 67). In this state, the actuator 6 is considered to be in a partially open actuator position. Therefore, even without the electromagnetic force of the solenoid 68, the armature 60 will not seal against the armature seat 63.

[0071] When the actuator 6 is in the partially open actuator position, a gap is formed between the front surface 60' of the armature 60 and the armature seat 63. This gap is referred to as a "small separation 62'" because it is smaller than the separation 62 formed when the actuator 6 is in the open actuator position. The small separation 62' partially clears the conduit 9 and enables the fluid to flow from the inlet 2 to the outlet 3 through the second flow path 52.

[0072] When the actuator 6 is in the partially open actuator position, the small separation 62 ′ may form a bottleneck in the flow through the second flow path 52 .

[0073] The small separation 62' has an effective cross-sectional area that is smaller than the minimum cross-sectional area of ​​the passage 42 for the fluid to enter the second flow path 52. Therefore, the chamber pressure behind the valve member 4 is approximately equal to the inlet pressure acting on the front surface 4' of the valve member 4. As mentioned above, the first effective area on which the inlet pressure acts is smaller than the second effective area on which the chamber pressure acts. Taking into account the force acting on the valve member 4, when the chamber pressure is equal to the inlet pressure, the net pressure difference force will play a role in biasing the valve member 4 toward the valve seat 34 (i.e., into the closed valve position). The elastic force of the spring 74 further plays a role in biasing the valve member 4 toward the valve seat 34. This ensures that the front surface 4' of the valve member 4 is completely sealed with the valve seat 34 to prevent fluid from entering therein.

[0074] When the valve member 4 is in the closed valve position, there is no gap between the front surface 4' of the valve member 4 and the end of the valve member 4 facing the outlet 3. Therefore, the inlet 2 is not fluidly connected to the outlet 3 via the first flow path 51.

[0075] like Figure 3 As shown, at this value of the inlet pressure, the inlet 2 is not connected to the outlet 3 via the first flow path 51, but the inlet 2 is connected to the outlet 3 via the second flow path 52. In this state, the only fluid output from the outlet 3 arrives via the second flow path 52.

[0076] In this way, when the inlet pressure exceeds the first threshold inlet pressure, the second flow path 52 may provide a pressure relief path to prevent damage to components. The first threshold inlet pressure may represent a safety limit for the valve arrangement 1 .

[0077] The first threshold inlet pressure can be adjusted by selecting the coil spring 64 of the actuator 6. Changing the relative spring constant of the coil spring 64 will change the first threshold inlet pressure of the valve device 1. For example, increasing the spring constant of the coil spring 64 will increase the opposing force required to move the armature 60 away from the armature seat 63, thereby increasing the first threshold inlet pressure.

[0078] The first threshold inlet pressure may be adjusted by selecting component parts of the valve device 1. For example, the first threshold inlet pressure may be adjusted by changing the cross-sectional area of ​​the reduced area portion 90 of the conduit 9.

[0079] Figure 3 , the valve device 1 is shown when the inlet pressure is greater than a first threshold inlet pressure and less than a second threshold inlet pressure. If the inlet pressure increases to exceed the second threshold inlet pressure, the actuator 6 switches from the partially open actuator position to the open actuator position. This is because the chamber pressure increases with the increase in inlet pressure until the second threshold inlet pressure is reached. As the chamber pressure increases, the associated force of the fluid in the conduit 9 acting on the front surface 60' of the armature 60 also increases. This will have the effect of expanding the small separation 62' between the armature 60 and the armature seat 63. When the inlet pressure exceeds the second threshold inlet pressure, the force of the fluid in the conduit 9 acting on the front surface 60' of the armature 60 is sufficient to move the armature 60 further away from the armature seat 63. This switches the actuator 6 from the partially open actuator position to the open actuator position.

[0080] Figure 4 shows that in the second operating mode, when the inlet pressure is greater than the second threshold inlet pressure Figure 1 . As described in the previous paragraph, when the inlet pressure is greater than the second threshold inlet pressure, the actuator 6 is in the open actuator position. In this position, a separation 62 is formed between the front surface 60 ′ of the armature 60 and the armature seat 63. The separation 62 enables the inlet 2 and the outlet 3 to be fluidically connected via the second flow path 52.

[0081] The separation 62 is wide enough so as not to cause a bottleneck in the flow along the second flow path 52. Since the minimum cross-sectional area of ​​the conduit 9 is larger than the minimum cross-sectional area of ​​the passage 42, the chamber pressure behind the valve member 4 is less than the inlet pressure acting on the front surface 4' of the valve member 4. This pressure imbalance acts to move the valve member 4 away from the valve seat 34. Therefore, when the actuator 6 is in the open actuator position, the valve member 4 is pushed to the open valve position. Therefore, the inlet 2 is fluidly connected to the outlet 3 via the first flow path 51.

[0082] like Figure 4 As shown, the fluid flows from the inlet 2 via the first flow path 51 and the second flow path 52 , and is output from the outlet 3 .

[0083] The second threshold inlet pressure may represent another safety limit for the valve device 1. The second threshold inlet pressure may be adjusted by selecting component parts of the valve device 1. For example, the second threshold inlet pressure may be adjusted by changing the cross-sectional area of ​​the reduced area portion 90 of the conduit 9, and / or changing the cross-sectional area of ​​another reduced area portion 44 of the passage 42.

[0084] Alternatively or additionally, the second threshold inlet pressure may be adjusted by selecting the coil spring 64 of the actuator 6. Changing the spring constant of the coil spring 64 will change the second threshold inlet pressure of the valve device 1. For example, increasing the spring constant of the spring 64 will increase the opposing force required to move the armature away from the armature seat 63, thereby increasing the second threshold inlet pressure.

[0085] Another method of adjusting the first threshold inlet pressure or the second threshold inlet pressure includes applying a small current to the solenoid 68 when the valve device 1 is in the second operating mode. In this context, the term "small" refers to the magnitude of the small current being less than the magnitude of the current required to switch the actuator to a fixed open actuator position (such as the first operating mode of the valve device). A small forward current (i.e., the same direction as the current through the solenoid 68 when the valve device 1 is in the first operating mode) will reduce the first threshold inlet pressure and the second threshold inlet pressure. Similarly, a small reverse current will increase the first threshold inlet pressure and the second threshold inlet pressure. The controller 65 can be configured to determine and apply the small current or small reverse current required for some or all operating conditions of the valve device 1.

[0086] Figure 5 A table 100 of parameters representing the output of the valve device 1 at various operating modes and inlet pressures is shown. A first column 101 of the table 100 lists the operating mode of the valve device 1 selected by the controller 65. In a first operating mode of the valve device 1, the solenoid 68 is energized so that the actuator is fixed in the open actuator position. In a second operating mode (e.g., the solenoid 68 is not energized).

[0087] The second column 102 of the table 100 lists the inlet pressure of the valve device 1. The third column 103 of the table 100 describes whether the inlet 2 is fluidly connected to the outlet 3 via the first flow path 51. Similarly, the fourth column 104 of the table 100 describes whether the inlet 2 is fluidly connected to the outlet 3 via the second flow path 52. For clarity, the table 100 includes a first row 110 in which the headings representing each column 101-104 are listed. The table 100 further includes four additional rows 120, which respectively represent data for various operating conditions of the valve device 1.

[0088] like Figure 5 As shown, when the valve device 1 is actuated in the first operating mode, the outlet 3 is fluidly connected to the inlet 2 via the first flow path 51 and via the second flow path 52, independently of the inlet pressure.

[0089] When the valve device 1 is actuated in the second operating mode, the outlet 3 is fluidly connected to the inlet 2 via the second flow path 52 only when the inlet pressure is greater than the first threshold inlet pressure. In the second operating mode, the outlet 3 is fluidly connected to the inlet 2 via the first flow path 51 only when the inlet pressure is greater than the second threshold inlet pressure (which is greater than the first threshold inlet pressure).

[0090] Therefore, when the valve device 1 is in the second operating mode, the valve device 1 can still allow a limited or large amount of fluid flow from the inlet 2 to the outlet 3 depending on the inlet pressure of the valve device 1. This configuration allows the valve device 1 to safely discharge fluid when the inlet pressure exceeds a predefined safety limit. In this way, the valve device 1 has a pressure relief system integrated therein.

[0091] When the valve device 1 is integrated into a fluid delivery device (e.g., a shower head), this allows the fluid delivery device to have a lower pressure rating and to use lower grade materials in smaller quantities. Thus, implementing the valve device 1 with an integrated pressure relief system to replace a conventional solenoid valve can reduce the cost of producing the fluid delivery device.

[0092] Likewise, the pipe supplying the fluid handling device may not need to be rated for the main pressure. This may increase the installation flexibility of the fluid handling device as it can be adapted to fit a wider range of existing pipe fittings.

[0093] Furthermore, such a fluid delivery device including the valve device 1 may have lower associated maintenance costs and / or a longer service life because high levels of pressure cannot accumulate and cause damage to upstream components of the fluid delivery device or a larger device or system including the fluid delivery device. Such an arrangement may overcome a problem with conventional solenoid valves, wherein the solenoid valve may become stuck closed as pressure builds up. Thus, the valve device 1 may be associated with reduced maintenance requirements.

[0094] In the present disclosure, the pressure relief system is implemented by reconfiguring the components of the solenoid valve. This has fewer components than in a conventional solenoid valve used in conjunction with a conventional pressure relief valve. Therefore, the valve device 1 with an integrated pressure relief system can minimize complexity and associated manufacturing costs compared to conventional methods.

[0095] In the above Figures 1 to 5In the example of the valve device 1 concerned, the actuator 6 consists essentially of a monostable solenoid valve. That is, a continuous control signal is required to maintain one of the two actuator positions. In the present embodiment, the actuator is configured so that the solenoid 68 must be energized to maintain the actuator open position. In an alternative embodiment, the actuator may consist essentially of a bistable solenoid valve (i.e., a continuous control signal is not required to maintain either of the two actuator positions). Such an alternative actuator may utilize one or more permanent magnets to resist the force of the coil spring to keep the armature backward (in the open actuator position). The solenoid is energized to switch between the first operating mode and the second operating mode of the valve device, and vice versa, but ultimately there is no need to maintain the operating mode thereafter. The advantage of this alternative is that it can have lower power consumption during long periods of use.

[0096] In this alternative embodiment, a first operating mode of the valve device is characterized in that the armature is fixed in position by one or more permanent magnets (i.e. acting against the force of the coil spring), so that the actuator is fixed in the open actuator position regardless of the inlet pressure. A second operating mode of the valve device is characterized in that the armature is positioned so that the force of the coil spring exceeds the force of the one or more permanent magnets, so that the actuator is not fixed in the open actuator position, but can be moved depending on the inlet pressure.

[0097] Figure 6 A cross section of a shower head 200 is shown. In this example, the shower head 200 is a shower head. The shower head 200 comprises three valve devices, each of which is equivalent to Figures 1 to 5 The valve device 1 in FIG. Figures 1 to 5 The relevant explanation applies in a similar manner to Figure 6 . For the same or similar elements described in the valve device 1, the reference numerals will be reused. These reference numerals will have a suffix (a, b or c) to indicate which of the three valve devices they are associated with. The three valve devices include a first valve device 1a, a second valve device 1b and a third valve device 1c. As described above, each of the three valve devices 1a to 1c includes a respective inlet 2a to 2c for receiving a fluid from a fluid supply device. Each of the three valve devices 1a to 1c also includes one of the three outlets 3a to 3c, including a first outlet 3a, a second outlet 3b and a third outlet 3c. Each of the three outlets 3a to 3c is selectively fluidically connected to a respective inlet 2a to 2c corresponding to the three valve devices 1a to 1c.

[0098] like Figure 6As shown, the showerhead 200 includes a showerhead inlet 202, which is configured to be fluidically connected to a fluid supply pipeline (not shown). In this example, the showerhead 4 is threaded so that it can be connected to the fluid supply pipeline. The showerhead inlet 202 is configured to supply fluid from the fluid supply pipeline to each of the inlets 2a to 2c.

[0099] The showerhead 200 further includes a shower face 201, which includes a plurality of showerhead outlets 210, the showerhead outlets 210 including a first group of showerhead outlets 211, a second group of showerhead outlets 212, and a third group of showerhead outlets 213. In this example, the showerhead 200 includes: a first chamber 221 configured to supply fluid to the first group of showerhead outlets 211; a second chamber 222 configured to supply fluid to the second group of showerhead outlets 212; and a third chamber 223 configured to supply fluid to the third group of showerhead outlets 213. The second chamber 222 is generally annular and is arranged to at least partially surround the third chamber 223. Similarly, the first chamber 221 is generally annular and is arranged to at least partially surround the second chamber 222. The third group of showerhead outlets 213 is located at the center of the shower face 201, while the first group of showerhead outlets 211 is arranged at the periphery of the shower face 201. The second showerhead outlet group 212 is arranged on the shower surface 201 between the first showerhead outlet group 211 and the third showerhead outlet group 213 , so that the third showerhead outlet group 213 is surrounded by the second showerhead outlet group 212 , and the second showerhead outlet group 212 is surrounded by the first showerhead outlet group 211 .

[0100] The showerhead 200 is configured such that the first outlet 3a is arranged to supply fluid to the first chamber 221, wherein the first valve device 2a is operable to selectively allow fluid communication between the inlet 2a of the first valve device 1a and the first group of showerhead outlets 211. Similarly, the second outlet 3b is arranged to supply fluid to the second chamber 222, wherein the second valve device 1b is operable to selectively allow fluid communication between the inlet 2b of the second valve device 1b and the second group of showerhead outlets 212. Similarly, the third outlet 3c is arranged to supply fluid to the third chamber 223, wherein the third valve device 1c is operable to selectively allow fluid communication between the inlet 2c of the third valve device 1c and the third group of showerhead outlets 213.

[0101] The three valve devices 1a to 1c share a common controller 265. The common controller 265 has Figures 1 to 5 The common controller 265 is operable to control the switching between the first operation mode and the second operation mode of each of the three valve devices 1a to 1c. In this example, the common controller 265 is a digital controller completely enclosed in the showerhead 200.

[0102] The common controller 265 includes a memory 266 that is operable to store operating mode switching data for each of the three valve devices 1a to 1c. For example, the switching data may represent a pattern that is switched over time. Each pattern may be associated with a different spray mode of the sprinkler head 200. The controller 265 is operable to select a pattern based on additional data such as temperature, time of day, and / or identification data. For example, the common controller 265 can be programmed to run a specific switching pattern when a specific user is identified and a specific spray mode is selected. The controller 265 also includes a power supply 267 for powering the common controller 265. The power supply 267 can be an energy storage device, such as a battery and / or include a generator (such as a turbine system).

[0103] The common controller 265 can be operably connected to a user interface (not shown) by wired or wireless means. For example, the user interface can be a touch panel that is operable for a user to select between various spray modes of the spray head 200. Each spray mode selectable on the user interface can represent a different combination of operating modes of the three valve devices 1a to 1c.

[0104] exist Figure 6 In FIG. 1 , the showerhead 200 is shown with the first valve device 1a operating in the first operating mode. In the first operating mode, the solenoid of the first valve device 1a is energized. Therefore, the first outlet 3a and the extended first set of showerhead outlets 211 output flow from the showerhead inlet 202. The fluid output from the first set of showerhead outlets 211 is Figure 6 This is indicated by a grey triangle 70 in FIG.

[0105] The second valve device 1b and the third valve device 1c operate in the second operation mode (i.e., the solenoids of the second valve device 1b and the third valve device 1c are not energized). Since the inlet pressure of each of these valve devices 1b to 1c is less than the first threshold inlet pressure, no fluid is supplied to the second group of showerhead outlets 212 or the third group of showerhead outlets 213.

[0106] Figure 7 The showerhead 200 is shown when the inlet pressure exceeds the first threshold inlet pressure but is less than the second threshold inlet pressure. Figure 6 As shown, the first valve device 1 a is operated in the first operation mode, while each of the second valve device 1 b and the third valve device 1 c is operated in the second operation mode.

[0107] When the inlet pressure exceeds the first threshold inlet pressure, the second valve device 1b and the third valve device 1c enable the second inlet 2b and the third inlet 2c to be fluidically connected to the second outlet 3b and the third outlet 3c, respectively. Such fluid connection will only be via the second flow path of the second valve device 1b and the third valve device 1c. Therefore, since the first flow path of the second valve device 1b and the third valve device 1c is sealed, the fluid output from the second group of showerhead outlets 212 and the third group of showerhead outlets 213 will be restricted. The restricted fluid output from the second group of showerhead outlets 212 and the third group of showerhead outlets 213 is Figure 7 The fluid output from the first group of showerhead outlets 211 is represented by gray water droplets 71. Figure 7 This is indicated by a grey triangle 70 in FIG.

[0108] Figure 8 FIG. 2 shows the showerhead 200 when the inlet pressure exceeds the second threshold inlet pressure. Figure 6 and Figure 7 As shown, the first valve device 1 a is operated in the first operation mode, while each of the second valve device 1 b and the third valve device 1 c is operated in the second operation mode.

[0109] When the inlet pressure exceeds the second threshold inlet pressure, the second valve device 1b will enable the second inlet 2b to be fluidly connected to the second outlet 3b via its first and second flow paths. Similarly, the third valve device 1c will enable the third inlet 2c to be fluidly connected to the third outlet 3c via its first and second flow paths.

[0110] Therefore, the fluid output rate of the second group of showerhead outlets 212 and the third group of showerhead outlets 213 will be significantly greater than Figure 7 This is because, in Figure 8 In the embodiment, both the first flow path and the second flow path of the second valve device 1b and the third valve device 1c are not sealed.

[0111] The fluid outputted from the second group of showerhead outlets 212 and the third group of showerhead outlets 213 is Figure 8 The fluid output from the first group of showerhead outlets 211 is indicated by a gray triangle 72. Figure 8 This is indicated by a grey triangle 70 in FIG.

[0112] Look again Figures 6 to 8 It can be seen that as the inlet pressure increases, the showerhead 200 compensates by allowing more of the plurality of showerhead outlets 210 to be used for fluid output. In this way, the showerhead 200 can produce a series of different spray conditions for each user-selected spray mode.

[0113] In this example, each of the three valve devices 1a to 1c is identical, having the same first threshold inlet pressure and the same second threshold inlet pressure. However, within the scope of the present disclosure, the showerhead may include any number of valve devices, each having the same or different inlet pressure switching thresholds.

[0114] Fig. 9 A system 300 is shown, for example, a bathing system for installation in a bathing environment 400. The system 300 includes Figures 6 to 8 The system 300 further includes a fluid supply pipe 310 and a connector 302.

[0115] like Fig. 9 As shown, the showerhead inlet 202 is connected to the fluid supply conduit 310 via a connector 302. In this example, the showerhead inlet 202 is threadably coupled to the connector 302.

[0116] A portion of the system 300 may be disposed behind a panel 303 of a bathing environment (eg, a shower panel wall). Fig. 9 Features located behind panel 303 are shown using dashed lines.

[0117] The system 300 includes a user interface 301 for a user to change the flow rate of fluid supplied to the showerhead 200. The system 300 further includes a mixing valve 304, which is operable to control the relative supply provided by each of a hot fluid supply conduit 311 and a cold fluid supply conduit 312 (fluidly connected to a hot fluid source and a cold fluid source, respectively) to the fluid supply conduit 301. The user interface 301 is operably connected to the mixing valve 304 (e.g., electrically connected) to enable a user to actuate the mixing valve 304.

[0118] The user interface 301 is wirelessly connected to the common controller 265 and is operable to control the common controller 265. The system 300 further includes a sensor 320 configured to transmit sensor data to the user interface 301. In this example, the sensor 320 includes a touch sensor integrated into the user interface 301 to enable a user to select between spray modes of the sprinkler head 200. The sensor data may include one or more types of data. For example, the sensor data may include user identity information, ambient temperature measurements, and temperature measurements of the flow flowing into and / or out of the mixing valve 304.

[0119] The user interface 301 includes a processor 330 and a system memory 340 operable to store spray pattern data. The processor 330 is configured to select a spray pattern for the sprinkler head 200 using the sensor data and data from the system memory 340. The processor 340 is configured to send a signal to the common controller 265 to indicate the operating mode requirements of each of the three valve devices 1a to 1c required to produce the selected spray pattern.

[0120] exist Figures 6 to 9 In the example shown, the showerhead 200 is depicted as including a common controller 266. However, within the scope of the present disclosure, the common controller 266 or any portion thereof may be remote from the showerhead and may be selectively integrated into a user interface.

[0121] exist Figures 6 to 9 In the example shown, the showerhead 200 is described as including three valve devices (each having an associated chamber and a group of showerhead outlets). However, it will be appreciated by those skilled in the art that a showerhead may include any number of valve devices. Other configurations of showerhead outlets and chambers are also contemplated within the scope of the present disclosure. For example, multiple valve devices may be associated with the same single chamber or group of outlets, so that each valve device does not have a unique associated chamber and group of showerhead outlets.

[0122] A first aspect provides a valve device for a fluid delivery device (e.g., in a bath or plumbing device), comprising: an inlet for receiving a fluid from a fluid supply device during use, the fluid having an inlet pressure; an outlet selectively fluidly connected to the inlet; a valve member having an open valve position and a closed valve position, in which the valve member enables a fluid connection between the inlet and the outlet, and in which the valve member disables a fluid connection between the inlet and the outlet; and an actuator for selectively actuating the valve member and having an open actuator position and a closed actuator position, The valve device is operable within an operating value range of inlet pressure including a first threshold inlet pressure and a second threshold inlet pressure, wherein the valve device has: a first operating mode, in which, within the entire operating value range of the inlet pressure, the actuator is fixed in the open actuator position and the valve member is in the open valve position; and a second operating mode, in which, when the inlet pressure exceeds the second threshold inlet pressure, the actuator switches from the closed actuator position to the open actuator position, switching the valve member from the closed valve position to the open valve position.

[0123] The actuator is operable to selectively actuate the valve member from the open valve position to the closed valve position by (indirectly) varying a fluid pressure differential across the valve member.

[0124] The first operating mode may correspond to a user demand to open the valve.

[0125] The second operating mode may correspond to a user request to close the valve.

[0126] The first threshold inlet pressure may be lower than the second threshold inlet pressure.

[0127] The valve arrangement may be configured such that when the valve arrangement is operated in the second operating mode, and when the inlet pressure exceeds a first threshold inlet pressure, the actuator switches from the closed actuator position to the partially open actuator position.

[0128] The valve arrangement may be configured such that when the actuator is in the partially open actuator position: there is at least a partial fluid connection between the inlet and the outlet; and the valve member is in the closed valve position.

[0129] The inlet is selectively fluidly connectable to the outlet via a first flow path.

[0130] The inlet may be selectively fluidly connected to the outlet via a second flow path.

[0131] The valve device may further comprise a valve seat operable to cooperate with the front surface of the valve member to (reversibly) seal the first flow path.

[0132] Any one or both of the inlet and outlet may be generally tubular. The inlet may have a central axis extending along the length of the inlet (referred to as the inlet axis). Similarly, the outlet may have a central axis extending along the length of the outlet (referred to as the outlet axis). The front surface of the valve member may be substantially perpendicular to the inlet axis and / or the outlet axis.

[0133] The inlet and / or outlet may have any suitable cross-section (measured perpendicular to the inlet and outlet axes, respectively). For example, the inlet may have a generally circular cross-section, while the outlet may have a generally square cross-section.

[0134] The inlet may have an annular shape.

[0135] The inlet may surround the circumference of the outlet.

[0136] The outlet may have an annular shape.

[0137] The outlet may surround the circumference of the inlet.

[0138] An end of the outlet facing the front surface of the valve member and / or an end of the inlet facing the front surface of the valve member may define a valve seat.

[0139] The valve arrangement may be configured such that when the valve member is in the closed valve position, the front surface of the valve member is located on the valve seat such that there is no fluid connection between the inlet and the outlet via the first flow path.

[0140] The valve arrangement may be configured such that when the valve member is in the open valve position, the valve member is separated from the valve seat such that the inlet is fluidly connected to the outlet via the first flow path.

[0141] The valve member may comprise a translatable plate supported around its periphery by a flexible sheet.

[0142] The valve device may include a chamber. The chamber may be in contact with a rear surface of the valve member opposite the front surface. The rear surface of the valve member may define a boundary of the chamber.

[0143] The fluid within the chamber may have a "chamber pressure," which represents the fluid pressure of the fluid within the chamber.

[0144] The valve arrangement may be configured such that an inlet pressure acts on a first effective area (eg a front surface) of the valve member to generate an inlet pressure force.

[0145] The valve arrangement may be configured such that the chamber pressure acts on a second effective area (eg a rear surface) of the valve member to generate a chamber pressure force which acts to oppose the inlet pressure force.

[0146] The valve arrangement may be configured such that the first effective area is smaller than the second effective area.

[0147] The valve means may comprise at least one resilient member (eg at least one spring).The resilient member may comprise a spring extending across the chamber.

[0148] The valve member may comprise a passageway fluidly connecting the inlet to the chamber.The passageway may comprise or consist of a hole penetrating the valve member.

[0149] The valve means may comprise a conduit operable to selectively fluidly connect the chamber to the outlet.The channel, chamber and conduit may define a second flow path.

[0150] The conduit may include a reduced area portion. The reduced area portion may be configured to reduce a flow velocity along the second flow path. The reduced area portion may have a minimum cross-sectional area of ​​the conduit.

[0151] The channel may comprise a further reduced area portion. The further reduced area portion may have the smallest cross-sectional area of ​​the channel.

[0152] The reduced area portion may have a larger cross-sectional area than another reduced area portion.

[0153] The valve arrangement may be configured such that when the actuator is in the open actuator position, the smallest cross-sectional area of ​​the conduit is larger than the smallest cross-sectional area of ​​the passageway.

[0154] The valve arrangement may be configured such that when the actuator is in the partially open actuator position, the smallest cross-sectional area of ​​the conduit is less than or equal to the smallest cross-sectional area of ​​the passageway.

[0155] The valve device can be configured such that: when the actuator is in the closed actuator position, there is no fluid connection between the inlet and the outlet via the second flow path; and / or when the actuator is in the closed actuator position, there is no fluid connection between the inlet and the outlet via the first flow path; and / or when the valve member is in the open actuator position, the inlet is connected to the outlet via the second flow path fluid; and / or when the valve member is in the open actuator position, the inlet is connected to the outlet via the first flow path fluid.

[0156] The actuator may include an armature. The armature may include or consist essentially of a movable element arranged to selectively block and clear the conduit. The armature may be operably connected to a resilient member (e.g., a spring). The armature may be electromagnetically controlled.

[0157] The actuator may comprise an armature seat.The armature seat may be operable to cooperate with a front surface of the armature to (reversibly) seal the second flow path.

[0158] The actuator may comprise a solenoid operable to oppose the reaction force of a resilient member on the armature (when the solenoid is energised).

[0159] The actuator may include or consist primarily of a monostable solenoid valve. The actuator may be configured such that a continuous control signal is required to maintain one of two actuator positions. For example, the actuator may be configured such that the solenoid must be energized to maintain the actuator in an open position.

[0160] The valve device may be configured such that when the valve device is operated in the first operating mode, the solenoid is energized and the electromagnetic force of the solenoid on the armature overcomes the reaction force, thereby separating the armature and the armature seat. This may enable the inlet and outlet to be fluidly connected via the second flow path.

[0161] The valve device can be configured such that when the valve device is in the second operating mode and the inlet pressure is below the first threshold inlet pressure, the actuator is in a closed actuator position wherein the resilient member urges the armature to contact the armature seat, thereby sealing the second flow path to prevent fluid connection between the inlet and the outlet via the second flow path.

[0162] The actuator may include or consist essentially of a bistable solenoid valve.The actuator may be configured such that a continuous control signal is not required to maintain either of the two actuator positions.

[0163] The actuator may include one or more permanent magnets operable to hold the armature rearward against the force of the coil spring when the actuator is in the open actuator position. The actuator may be operable to switch between a first operating mode and a second operating mode of the valve device (or vice versa) when current is applied to the solenoid.

[0164] Each of the one or more permanent magnets may be arranged to oppose a reaction force of the elastic member.

[0165] The actuator may be configured such that when the valve device is in the first operating mode, the armature is fixed in position by one or more permanent magnets such that the actuator is fixed in an open actuator position over the entire operating value range of the inlet pressure. This may enable the inlet and outlet to be fluidly connected via the second flow path.

[0166] The actuator may be configured such that when the valve arrangement is in the second operating mode, the armature is positioned such that the reaction force of the resilient member exceeds the force of the one or more permanent magnets such that the actuator is not fixed in the open actuator position but is movable depending on the inlet pressure.

[0167] The valve device can be configured such that when the valve device is in a second operating mode and the inlet pressure is greater than a first threshold inlet pressure and less than or equal to a second threshold inlet pressure, the pressure of the fluid in the second flow path on the armature counteracts the reaction force and causes a first separation between the armature and the armature seat, so that at least a partial fluid connection is achieved between the inlet and the outlet via the second flow path.

[0168] The valve device can be configured so that when the valve device is in the second operating mode and the inlet pressure is greater than the second threshold inlet pressure, the pressure of the fluid in the second flow path on the armature overcomes the reaction force of the elastic member, thereby generating a second separation between the armature and the armature seat. The second separation can enable the inlet and outlet to be fluidically connected via the second flow path. The second separation can be greater than the first separation. The second separation can have an effective cross-sectional area greater than the minimum cross-sectional area of ​​the passage. In use, this arrangement can generate a fluid pressure difference on both sides of the valve member, which serves to switch the valve member to the open valve position.

[0169] The valve arrangement may comprise a controller operatively connected to the actuator and operable to control switching of the valve arrangement between a first mode of operation and a second mode of operation.

[0170] The controller may be connected to the actuator by wire or wirelessly.

[0171] The controller may be operable to control switching of the position of the actuator between an open actuator position and a closed actuator position.

[0172] The controller may be operable to control switching of the actuator position between an open actuator position, a partially open actuator position, and a closed actuator position.

[0173] The controller may be operable to control switching of the actuator position dependent upon the inlet pressure.

[0174] The controller is operable to vary the flow rate supplied to the inlet, thereby varying the inlet pressure. Thus, the controller may include two separate devices by which the operating position of the valve member and the actuator is controlled. For example, the first device may utilize a solenoid to switch the operating mode of the actuator (thereby indirectly affecting the position of the valve member at a given inlet pressure, as described elsewhere in this application). The second device may involve varying the flow rate supplied to the inlet, directly controlling the inlet pressure, which determines the position of the valve member in a given operating mode of the valve device (as described elsewhere in this application).

[0175] The controller may be a digital controller or a manual controller (eg, a push button).

[0176] The controller may include a memory operable to store operating mode switching data.

[0177] The operating mode switching data may comprise one or more patterns of switching between operating modes of the valve arrangement over time.For example, the controller may be configured to provide a pulse width modulated signal to the actuator to produce a first pattern of switching between operating modes of the valve arrangement.

[0178] Each pattern may be associated with a different spray pattern of a fluid delivery device, such as a bathing or plumbing fixture in which the valve device may be installed.

[0179] The controller may be operable to select a pattern based on additional data such as temperature, time of day, and / or identification data. For example, the controller may be programmed to run a particular switching pattern when it recognizes a particular user and selects a particular spray mode.

[0180] The controller may include a device for adjusting the first threshold inlet pressure and / or the second threshold inlet pressure. For example, when the valve device is in the second operating mode, the controller may be programmed to apply a small current to the solenoid. In this document, the term "small" refers to the magnitude of the small current being less than the magnitude of the current required to fix the actuator in an open actuator position (such as the first operating mode of the valve device). Applying a small forward current can reduce the first threshold inlet pressure and the second threshold inlet pressure. Similarly, applying a small reverse current can increase the first threshold inlet pressure and the second threshold inlet pressure. The controller may be configured to determine and apply a small current or a small reverse current required for some or all operating conditions of the valve device.

[0181] A second aspect provides a fluid delivery device, comprising: at least one valve device according to the first aspect; a fluid delivery device inlet, which is configured to be fluidically connected to a fluid supply pipeline; and at least one group of fluid delivery device outlets, which are configured to receive fluid from the fluid supply pipeline via an outlet of one of the at least one valve devices.

[0182] The fluid delivery device may include a shower head for a bathing pipe. The fluid delivery device may include or mainly consist of a shower head or a faucet.

[0183] The fluid delivery device may comprise a plurality of valve devices according to the first aspect.

[0184] The fluid delivery device may include a plurality of sets of fluid delivery device outlets. Each set of fluid delivery device outlets (in the plurality of sets of fluid delivery device outlets) may be configured to receive fluid from an outlet of a corresponding one of the plurality of valve devices.

[0185] The plurality of valve devices may each have the same first threshold inlet pressure and / or the same second threshold inlet pressure as other valve devices in the plurality of valve devices.

[0186] Alternatively, a selected valve device of the plurality of valve devices may have a first threshold inlet pressure that is different than the remaining valve devices of the plurality of valve devices.

[0187] Additional selected ones of the plurality of valve devices may have a second threshold inlet pressure that is different than the remaining ones of the plurality of valve devices.

[0188] A selected valve device of the plurality of valve devices may or may not consist of another selected valve device of the plurality of valve devices.

[0189] Thus, the fluid delivery device may include any number of valve devices, each valve device having the same or different inlet pressure switching thresholds.

[0190] The fluid delivery device may include a controller operably connected to the actuator and operable to control switching of the valve device between the first mode of operation and the second mode of operation.

[0191] The controller may be connected to the actuator by wire or wirelessly.

[0192] The controller may be operable to control switching of the position of the actuator between an open actuator position and a closed actuator position.

[0193] The controller may be operable to control switching of the actuator position between an open actuator position, a partially open actuator position, and a closed actuator position.

[0194] The position of the switching actuator may be dependent on the inlet pressure.

[0195] The controller may be a digital controller or a manual controller (eg, a push button).

[0196] The controller may include a memory operable to store operating mode switching data.

[0197] The operating mode switching data may include one or more patterns of switching between modes over time.

[0198] Each pattern may be associated with a different spray pattern of the sprinkler head.

[0199] The controller may be operable to switch between a first mode of operation and a second mode of operation for each of the plurality of valve arrangements.

[0200] The controller is operable to vary the flow rate supplied to each inlet, thereby varying the inlet pressure of each corresponding inlet. The controller is operable to vary the flow rate supplied to each inlet independently of all other inlets in the plurality of valve arrangements, thereby varying the inlet pressure of each inlet of the plurality of valve arrangements independently.

[0201] The controller may be mounted at least partially within the sprinkler head.

[0202] The controller may be completely enclosed within the sprinkler head.

[0203] The controller may be operable to select a pattern based on additional data such as temperature, time of day, and / or identification data. For example, the controller may be programmed to operate a particular switching pattern when it recognizes a particular user and selects a particular spray mode.

[0204] A third aspect provides a bathing system for installation in a bathing environment, comprising: a fluid delivery device according to the second aspect; and a user interface for controlling one or more features of the flow from a fluid supply conduit to the fluid delivery device.

[0205] The one or more characteristics of the flow may include the flow rate and / or the temperature of the flow.

[0206] If present, the user interface may include a controller.

[0207] The user interface may be operably connected to the controller (if present) by wire or wirelessly.

[0208] The user interface may be remote from the sprinkler head such that no portion of the user interface is received within the sprinkler head.

[0209] The system may further include a mixing valve operable to control the supply of fluid provided to the showerhead from each of the hot fluid supply conduit and the cold fluid supply conduit.A user interface may be operably connected to the mixing valve to enable a user to actuate the mixing valve.

[0210] The system may include one or more sensors. One or more of the sensors may be configured to transmit sensor data to the user interface. For example, each sensor may be configured to transmit sensor data to the user interface.

[0211] For example, the one or more sensors may include a touch sensor integrated into the user interface. The touch sensor may enable a user to select between spray modes of the showerhead.

[0212] The sensor data may include one or more types of data. For example, the sensor data may include user identification information, ambient temperature measurements, and temperature measurements of the flow into and / or out of the mixing valve.

[0213] The user interface may include a processor and a system memory operable to store spray pattern data. The processor may be configured to select a spray pattern for the sprinkler head using the sensor data and data from the system memory. The processor may be configured to send a signal to the controller. The signal may indicate an operating mode requirement for each of the one or more valve devices required to produce the selected spray pattern.

[0214] Those skilled in the art will appreciate that, unless mutually exclusive, the features described in any one of the above aspects may be applied to any other aspects by analogy. In addition, except where mutually exclusive, any feature described herein may be applied to any aspect and / or combined with any other feature described herein.

[0215] The specific configurations shown in the figures and described in the accompanying description are examples and should not be considered limiting.

[0216] Throughout this disclosure, the term "cross-sectional area" is used to refer to the cross-sectional area of ​​a hollow element such as a pipe or channel. The term should be understood as the cross-sectional area of ​​the element measured perpendicular to the direction of flow through the element (in use) at the location of the measurement.

[0217] The present disclosure should be understood that any separable features or elements of the disclosed invention, in any of its various aspects and embodiments, are to be considered intended to be combinable, unless the context clearly dictates otherwise.

[0218] It is to be understood that the present invention is not limited to the above-mentioned embodiments, and various modifications and improvements may be made without departing from the concepts herein. Except where mutually exclusive, any feature may be used alone or in combination with any other feature, and the disclosure of the present invention extends to and includes all combinations and sub-combinations of one or more features described herein.

Claims

1. A valve device, comprising: an inlet, the inlet being used to receive a fluid from a fluid supply device, the fluid having an inlet pressure; an outlet selectively fluidly connected to the inlet; a valve member having an open valve position in which the inlet is in fluid communication with the outlet and a closed valve position in which the inlet is not in fluid communication with the outlet; as well as an actuator that selectively actuates the valve member, the actuator having an open actuator position and a closed actuator position, wherein the valve arrangement is operable over a range of operating values ​​of inlet pressure that includes a first threshold inlet pressure and a second threshold inlet pressure, The valve device comprises: a first operating mode in which the actuator is fixed in the open actuator position and the valve member is in the open valve position throughout the operating value range of the inlet pressure; as well as A second operating mode in which the actuator switches from the closed actuator position to the open actuator position to switch the valve member from the closed valve position to the open valve position when the inlet pressure exceeds the second threshold inlet pressure.

2. A valve device according to claim 1, wherein the first threshold inlet pressure is lower than the second threshold inlet pressure, and wherein when the valve device is in the second operating mode, and when the inlet pressure exceeds the first threshold inlet pressure, the actuator switches from the closed actuator position to the partially open actuator position.

3. The valve device of claim 2, wherein when the actuator is in the partially open actuator position: there is at least a partial fluid connection between the inlet and the outlet; and the valve member is in the closed valve position.

4. The valve device of claim 1, further comprising a controller that controls switching between the first operating mode and the second operating mode of the valve device.

5. The valve arrangement according to claim 4, wherein the controller controls switching of the position of the actuator depending on the inlet pressure.

6. A valve device according to claim 5, wherein the valve member comprises a translatable plate supported at its periphery by a flexible sheet, and / or wherein the valve device comprises a resilient member, such as a spring.

7. The valve device according to claim 1, wherein the actuator includes an armature seat; an armature, the armature being operably connected to the elastic member; and a solenoid, when the solenoid is energized, the solenoid selectively opposes the reaction force of the elastic member on the armature.

8. The valve device of claim 7, wherein the inlet is selectively fluidly connected to the outlet via a first flow path, and the inlet is selectively fluidly connected to the outlet via a second flow path.

9. The valve device according to claim 8, wherein: When the valve member is in the closed valve position, the front surface of the valve member is seated on a valve seat such that there is no fluid connection between the inlet and the outlet via the first flow path; as well as When the valve member is in the open valve position, the valve member is disengaged from the valve seat such that the inlet is fluidly connected to the outlet via the first flow path.

10. A valve device according to claim 9, wherein one of the inlet and the outlet surrounds the circumference of the other of the inlet and the outlet, and wherein an end of the outlet facing the front surface of the valve member and / or an end of the inlet facing the front surface of the valve member defines the valve seat.

11. The valve device of claim 8, further comprising a chamber in contact with a rear surface of the valve member opposite the front surface, and a passage fluidly connecting the inlet to the chamber.

12. The valve device of claim 11, further comprising a conduit selectively fluidly connecting the chamber to the outlet, wherein the passage, the chamber, and the conduit define the second flow path.

13. The valve device of claim 12, wherein when the actuator is in the open actuator position, the minimum cross-sectional area of ​​the conduit is greater than the minimum cross-sectional area of ​​the passageway.

14. The valve device of claim 12, wherein the conduit includes a reduced area portion to reduce flow velocity along the second fluid flow path, the reduced area portion of the conduit having a cross-sectional area greater than the minimum cross-sectional area of ​​the passageway.

15. The valve device according to claim 8, wherein: when the actuator is in the closed actuator position, there is no fluid connection between the inlet and the outlet via the second flow path; as well as When the valve member is in the open actuator position, the inlet is fluidly connected to the outlet via the second flow path.

16. The valve device according to claim 8, wherein when the valve device operates in the first operation mode, any one of the following conditions exists: The solenoid is energized, and the electromagnetic force of the solenoid on the armature overcomes the reaction force to separate the armature and the armature seat, thereby fluidly connecting the inlet and the outlet via the second flow path; or The armature is held in place by one or more permanent magnets such that the inlet and the outlet are fluidly connected via the second flow path.

17. The valve device according to claim 16, wherein when the valve device is in the second operating mode: when the inlet pressure is below the first threshold pressure, the actuator is in the closed actuator position in which the resilient mechanism urges the armature to contact an armature seat, thereby sealing the second flow path and preventing fluid connection between the inlet and the outlet via the second flow path; and When the inlet pressure exceeds the first threshold pressure and is less than or equal to the second threshold pressure, the pressure of the fluid in the second fluid flow path on the armature opposes the reaction force and causes a first separation between the armature and the armature seat, so that at least a partial fluid connection is achieved between the inlet and the outlet via the second flow path.

18. The valve device according to claim 16, wherein when the valve device is in the second operation mode and the inlet pressure exceeds the second threshold pressure, the pressure of the fluid in the second fluid flow path on the armature overcomes the reaction force of the elastic mechanism, so that a second separation exists between the armature and the armature seat, the second separation is greater than the first separation, and a fluid connection is achieved between the inlet and the outlet via the second flow path.

19. A fluid delivery device, comprising: At least one valve device; comprising: Entrance; an outlet selectively fluidly connected to the inlet; a valve member having an open valve position in which the inlet is in fluid communication with the outlet and a closed valve position in which the inlet is not in fluid communication with the outlet; and an actuator that selectively actuates the valve member, the actuator having an open actuator position and a closed actuator position, wherein the valve arrangement is operable over a range of operating values ​​of inlet pressure including a first threshold inlet pressure and a second threshold inlet pressure, The valve device comprises: a first operating mode in which the actuator is fixed in the open actuator position and the valve member is in the open valve position throughout the operating value range of the inlet pressure; and a second operating mode in which the actuator switches from the closed actuator position to the open actuator position to switch the valve member from the closed valve position to the open valve position when the inlet pressure exceeds the second threshold inlet pressure; a fluid delivery device inlet fluidly connected to a fluid supply conduit; At least one set of fluid delivery device outlets receives fluid from the fluid supply conduit via the outlet of one of the at least one valve device.

20. The fluid delivery device according to claim 19, comprising: a plurality of valve devices; A plurality of sets of fluid delivery device outlets, wherein each set of fluid delivery device outlets receives fluid from the outlet of a corresponding one of the plurality of valve devices.

21. The fluid delivery device of claim 19, wherein a controller is at least partially received within the fluid delivery device.

22. The showerhead of claim 19, wherein a controller is operably connected to the actuator to control switching between the first operating mode and the second operating mode of one or more valve devices.

23. The showerhead of claim 21, wherein the controller is a digital controller and / or wherein the controller includes a memory operable to store operating mode switching data for each of the plurality of valve arrangements.

24. A bathing system, comprising: The fluid delivery device according to claim 19; as well as a user interface for controlling one or more characteristics of flow from the fluid supply conduit to the fluid delivery device, Wherein the user interface is operably connected to the controller.

25. The bathing system of claim 24, further comprising a mixing valve that controls the supply of fluid provided to the fluid delivery device from each of the hot fluid supply conduit and the cold fluid supply conduit, wherein the user interface is operably connected to the mixing valve so that a user can actuate the mixing valve.

Images