Shower rose for a plumbing fixture
Patent Information
- Application Number
- EP2024701205
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-01-30
- Filing Date
- 2024-01-18
- Publication Date
- 2025-12-10
AI Technical Summary
Shower systems for sanitary fittings face challenges in reducing fluid consumption while maintaining low component complexity and minimizing noise pollution, as existing solutions either lead to complex structures with high production costs or inadequate distribution of liquid over a large area.
The shower design incorporates multiple fluidic oscillators with no moving parts or electrical components, which create oscillating flows through liquid outlets, optimizing pulse generation and reducing liquid consumption without increasing component complexity or noise.
This design achieves reduced liquid consumption, low noise emissions, and effective distribution of liquid over a large area, enhancing user experience and reducing production costs.
Smart Images
Figure EP2024051173_08082024_PF_FP
Abstract
Description
[0001] Shower head for a sanitary fitting
[0002] The present invention relates to a shower head for a sanitary fitting. Sanitary fittings are used, in particular, to provide liquids, such as water, to a sink, washbasin, shower, or bathtub as needed.
[0003] Showerheads for sanitary fittings can be designed, for example, as overhead showers, hand showers, and / or side showers and / or serve to distribute the liquid delivered by the sanitary fitting over a wide area. Showerheads are also known with which the liquid can be delivered in at least one jet type, for example, in the form of rain jets, full jets, massage jets, or pearl jets, using at least one jet former. The jet type to be delivered can be selected via actuating elements on the showerheads, which control valves in the liquid supply channels for the individual jet formers.
[0004] To reduce fluid consumption, showers are known which release the fluid in pulses using mechanical components, such as wobble plates. However, this results in a complex structure and a high number of components in the showers, which increases the manufacturing cost of the showers. In addition, the mechanical components can lead to noise pollution. Fluid consumption can also be reduced by reducing the amount of fluid released by the showers, for example by reducing the number and / or diameter of the fluid outlets on the showers. However, this can result in the fluid not being able to be distributed over a sufficiently large area by the showers, the cleaning performance of the showers being reduced and / or the fluid jets being perceived as unpleasant by the shower user.The object of the invention is therefore to at least partially solve the problems described with reference to the prior art and, in particular, to provide a shower with which liquid consumption can be reduced, which has a low part complexity and which is characterized by low noise emissions.
[0005] These objects are achieved with a showerhead according to the features of the independent patent claim. Further advantageous embodiments of the invention are specified in the dependent patent claims. It should be noted that the features listed individually in the dependent patent claims can be combined with one another in any technologically expedient manner and define further embodiments of the invention. Furthermore, the features listed in the patent claims are further specified and explained in the description, with further preferred embodiments of the invention being presented.
[0006] A shower head for a sanitary fitting contributes to this, which has at least the following:
[0007] - a housing having a liquid inlet for a liquid and a plurality of liquid outlets for the liquid;
[0008] - at least one first fluidic oscillator having a first liquid inlet connected to the liquid inlet; and
[0009] - at least one second fluidic oscillator with a second liquid inlet, to which the liquid can be supplied from the at least one first fluidic oscillator and from which the liquid can be supplied to at least one of the liquid outlets.
[0010] Sanitary fittings are used in particular for the demand-based provision of liquids, such as water, to sinks, wash basins, showers and / or bathtubs. For this purpose, cold water at a cold water temperature and hot water at a hot water temperature can be supplied to the sanitary fittings, which can be mixed by the sanitary fittings, for example by means of a mixing valve or a thermostatic mixing cartridge, to form mixed water with a desired mixed water temperature. The cold water temperature is in particular a maximum of 25 °C (Celsius), preferably 1 °C to 25 °C, particularly preferably 5 °C to 20 °C and / or the hot water temperature is in particular a maximum of 90 °C, preferably 25 °C to 90 °C, particularly preferably 55 °C to 65 °C. The mixed water can then be supplied, for example via a liquid line or a liquid hose, to a shower, which is designed, for example, in the manner of an overhead shower, hand shower or side shower.The showerhead can be permanently attached to a support, such as a wall, or it can be moved by the user. The showerhead can spray the liquid in a variety of different jet types.
[0011] The showerhead has a housing with a liquid inlet for the liquid and a plurality of liquid outlets for the liquid. For example, the housing can have 20 to 400 liquid outlets. The housing can be made at least partially of metal and / or plastic. The liquid can be supplied to the showerhead via the liquid inlet of the housing. The liquid inlet can, in particular, be connectable to the liquid line or the liquid hose of the sanitary fitting. The liquid can be released into the surroundings of the showerhead via the liquid outlets. The liquid outlets can, for example, be designed in the manner of openings and / or nozzles. The liquid outlets can be formed on at least one jet former of the showerhead.With the at least one jet generator, the liquid can be dispensed in at least one jet type, for example in the form of rain jets, full jets, massage jets, hard jets, soft jets, and / or pearl jets. The liquid outlets can be arranged in the area of a shower head of the showerhead.
[0012] The showerhead comprises at least one first fluidic oscillator with a first fluid inlet. The fluid can be supplied from the fluid inlet of the housing to the at least one first fluidic oscillator via the first fluid inlet. At least one (first) fluid channel can lead from the fluid inlet to the first fluid inlet. The at least one first fluidic oscillator is arranged and / or formed in particular in the housing. A fluidic oscillator is a technical device that functions on the basis of fluid dynamics or is based on the principle of flow instability. Within the fluidic oscillator, the fluid can be conducted in such a way that unstable flows occur, leading to oscillations.By means of the (at least one first) fluidic oscillator, the liquid supplied via the liquid inlet can be delivered as an oscillating or (periodically) oscillating flow via two liquid outlets, in particular a first liquid outlet and a second liquid outlet, of the (at least one first) fluidic oscillator. This can mean, in particular, that the delivery of the liquid via one of the two liquid outlets decreases and increases, while the delivery of the liquid via the other liquid outlet increases and decreases (in the opposite direction). The sum of the volume flow rates of the liquid delivered via the two liquid outlets thus corresponds to the volume flow rate of the liquid supplied via the liquid inlet. The liquid can be delivered by the at least one first fluidic oscillator, in particular at a first oscillation frequency.In particular, the fluidic oscillator has no moving parts (relative to the shower head and / or the housing) and / or no electrical components. The at least one first fluidic oscillator can, in particular, be a fluidic feedback oscillator.
[0013] The shower comprises at least one second fluidic oscillator with a second liquid inlet, to which the liquid can be fed (oscillating or vibrating) from the at least one first fluidic oscillator. The at least one second fluidic oscillator can have the same functionality as the at least one first fluidic oscillator and / or be designed like the at least one first fluidic oscillator. The at least one second fluidic oscillator is in particular arranged and / or designed in the housing. The at least one first fluidic oscillator can be connected to the at least one second fluidic oscillator via a (second) liquid channel. The at least one second fluidic oscillator is arranged or designed downstream of the at least one first fluidic oscillator in a flow direction of the liquid.The at least one first fluidic oscillator can form a first oscillator stage of the shower, and the at least one second fluidic oscillator can form a second oscillator stage of the shower. The at least one second fluidic oscillator can deliver the liquid supplied via the second liquid inlet as an oscillating or (periodically) oscillating flow via two liquid outlets, in particular a third liquid outlet and a fourth liquid outlet, of the at least one second fluidic oscillator. The liquid can be delivered by the at least one second fluidic oscillator at a second oscillation frequency. The second oscillation frequency can be lower than the first oscillation frequency and / or half as high as the first oscillation frequency. This allows the liquid to be delivered through the shower with optimal pulse generation.
[0014] The at least one second fluidic oscillator, in particular, has no moving parts (relative to the shower head and / or the housing) and / or no electrical components. The at least one second fluidic oscillator can, in particular, be a fluidic feedback oscillator.
[0015] The liquid can be supplied from the at least one second fluidic oscillator to at least one of the liquid outlets or to a plurality of liquid outlets. For this purpose, the at least one second fluidic oscillator can be connected to the at least one liquid outlet or to the plurality of liquid outlets via at least one supply channel.
[0016] The at least one first fluidic oscillator and the at least one second fluidic oscillator can be arranged in a series circuit. This can mean, in particular, that the at least one first fluidic oscillator and the at least one second fluidic oscillator are arranged or formed in series. The at least one second fluidic oscillator can be connected to a first fluid outlet of the at least one first fluidic oscillator. In particular, the second fluid inlet of the at least one second fluidic oscillator can be connected, in particular via the (second) fluid channel, to the first fluid outlet of the at least one first fluidic oscillator.
[0017] The shower head can have at least one third fluidic oscillator with a third liquid inlet, to which the liquid can be fed (oscillating or vibrating) from the at least one first fluidic oscillator and from which the liquid can be fed to at least one of the liquid outlets. The at least one third fluidic oscillator can have the same functionality as the at least one first and / or second fluidic oscillator and / or be designed like the at least one first and / or second fluidic oscillator. The at least one third fluidic oscillator is in particular arranged and / or designed in the housing. The at least one first fluidic oscillator can be connected to the at least one third fluidic oscillator via a (third) liquid channel.The at least one third fluidic oscillator is arranged or formed downstream of the at least one first fluidic oscillator in a flow direction of the liquid. The at least one second fluidic oscillator and the at least one third fluidic oscillator can form the second oscillator stage of the shower. By means of the at least one third fluidic oscillator, the liquid supplied via the third liquid inlet can be discharged as an oscillating or (periodically) oscillating flow via two liquid outlets, in particular a fifth liquid outlet and a sixth liquid outlet, of the at least one third fluidic oscillator. The liquid can be discharged by the at least one third fluidic oscillator at a third oscillation frequency, which can in particular correspond to the second oscillation frequency.The third oscillation frequency can be lower than the first oscillation frequency and / or half the first oscillation frequency. This allows the liquid to be dispensed through the showerhead with optimal pulse generation. The at least one third fluidic oscillator has, in particular, no moving parts (relative to the showerhead and / or the housing) and / or no electrical components. The at least one third fluidic oscillator can, in particular, be a fluidic feedback oscillator.
[0018] The liquid can be supplied from the at least one third fluidic oscillator to at least one of the liquid outlets or to a plurality of liquid outlets. For this purpose, the at least one third fluidic oscillator can be connected to the at least one liquid outlet or to the plurality of liquid outlets via at least one supply channel. The at least one third fluidic oscillator can increase the number of liquid outlets to which the liquid can be supplied in an oscillating manner.
[0019] The at least one first fluidic oscillator and the at least one third fluidic oscillator can be arranged in a series circuit. This can mean, in particular, that the at least one first fluidic oscillator and the at least one third fluidic oscillator are arranged or configured in series.
[0020] The at least one third fluidic oscillator can be connected to a second fluid outlet of the at least one first fluidic oscillator. In particular, the third fluid inlet of the at least one third fluidic oscillator can be connected, in particular via the (third) fluid channel, to the second fluid outlet of the at least one first fluidic oscillator.
[0021] The at least one second fluidic oscillator and the at least one third fluidic oscillator can be arranged in parallel. This can mean, in particular, that the at least one second fluidic oscillator and the at least one third fluidic oscillator are arranged or configured in parallel. A second fluidic oscillator and a third fluidic oscillator can each form a pair of fluidic oscillators, particularly in the second oscillator stage, and / or be connected in parallel in pairs. Each pair of fluidic oscillators can be connected to a first fluidic oscillator, or each fluidic oscillator of the pair can be connected to one of the two fluid outlets of a first fluidic oscillator.The at least one second fluidic oscillator and the at least one third fluidic oscillator can be subjected to the fluid flowing through the at least one first fluidic oscillator, in particular alternately, and in turn each generate an oscillating outflow of the fluid at its fluid outlets. The fluid flowing into the at least one first fluidic oscillator via the first fluid inlet can be distributed among at least four fluid outlets of the at least one second fluidic oscillator and at least one third fluidic oscillator. The fluid can be discharged to alternating fluid outlets via the at least four fluid outlets at a uniform oscillation frequency.
[0022] The liquid can be supplied from a third liquid outlet of the at least one second fluidic oscillator to at least one first liquid outlet of the housing, and from a fourth liquid outlet of the at least one second fluidic oscillator to at least one second liquid outlet of the housing. The third liquid outlet can be connected to the at least one first liquid outlet of the housing via at least one supply channel, and the fourth liquid outlet can be connected to the at least one second liquid outlet of the housing via at least one (in particular separate) supply channel.
[0023] The liquid can be supplied from a fifth liquid outlet of the at least one third fluidic oscillator to at least one third liquid outlet of the housing, and from a sixth liquid outlet of the at least one third fluidic oscillator to at least one fourth liquid outlet of the housing. The fifth liquid outlet can be connected to the at least one third liquid outlet of the housing via at least one (in particular separate) supply channel, and the fourth liquid outlet can be connected to the at least one fourth liquid outlet of the housing via at least one (in particular separate) supply channel.
[0024] The at least one first fluidic oscillator, the at least one second fluidic oscillator and / or the at least one third fluidic oscillator can be formed in at least one liquid guide of the shower head. The liquid guide can in particular consist at least partially of plastic and / or metal. The liquid guide can be designed as a plastic injection-molded part. Through the liquid guide, the liquid can be guided within the housing, in particular at least partially without contact with the housing. Through the liquid guide, the liquid can be supplied in particular to the at least one first fluidic oscillator, the at least one second fluidic oscillator, the at least one third fluidic oscillator and / or at least one of the liquid outlets.The first fluid channel, the second fluid channel, the third fluid channel, and / or at least one supply channel can be formed at least partially in the fluid guide. The fluid guide can be arranged at least partially in the housing. The fluid guide can be at least one jet former. The at least one first fluidic oscillator, the at least one second fluidic oscillator, and / or the at least one third fluidic oscillator (or their flow geometries) can be molded into the at least one fluid guide (particularly during plastic injection molding) and / or be part of the existing fluid paths or channels of the at least one fluid guide.The at least one first fluidic oscillator, the at least one second fluidic oscillator and / or the at least one third fluidic oscillator can be formed integrally and / or materially bonded to the at least one liquid guide. As a result, no additional components are required for the at least one first fluidic oscillator, the at least one second fluidic oscillator and / or the at least one third fluidic oscillator, which reduces the parts complexity. The invention and the technical environment are explained in more detail below with reference to the figure. It should be noted that the figure shows a particularly preferred embodiment of the invention, but is not limited thereto. It shows, by way of example and schematically:
[0025] Fig. 1: a shower head in an exploded view.
[0026] Fig. 1 shows a shower head 1 with a housing 2 in an exploded view.
[0027] I This is a shower head. The housing 2 comprises a liquid inlet 3 for a liquid 18. The liquid inlet 3 is connected to a first liquid inlet 8 of a first fluidic oscillator 5, so that the liquid 18 can be fed from the liquid inlet 3 to the first fluidic oscillator 5. The first fluidic oscillator 5 forms a first oscillator stage 21 of the shower head 1. The first fluidic oscillator 5 has a first liquid outlet
[0028] II and a second liquid outlet 12, via which the liquid 18 can be discharged in an oscillating manner by the first fluidic oscillator 5.
[0029] The shower head 1 comprises a second fluidic oscillator 6 with a second liquid inlet 9 and a third fluidic oscillator 7 with a third liquid inlet 10. The second liquid inlet 9 of the second fluidic oscillator 6 is connected to the first liquid outlet 11 of the first fluidic oscillator 5, such that the liquid 18 can be supplied to the second fluidic oscillator 6 from the first fluidic oscillator 5. The third liquid inlet 10 of the third fluidic oscillator 7 is connected to the second liquid outlet 12 of the first fluidic oscillator 5, such that the liquid 18 can be supplied to the third fluidic oscillator 7 from the first fluidic oscillator 5. The first fluidic oscillator 5 and the second fluidic oscillator 6 on the one hand and the first fluidic oscillator 5 and the third fluidic oscillator 7 on the other hand are each arranged in a series circuit with each other.The second fluidic oscillator 6 and the third fluidic oscillator 7 form a second oscillator stage 19 of the shower head 1 and are arranged in parallel. The first fluidic oscillator 5, the second fluidic oscillator 6, and the third fluidic oscillator 7 can be formed in a fluid guide 17 of the shower head 1.
[0030] The second fluidic oscillator 6 has a third liquid outlet 13 and a fourth liquid outlet 14. The third liquid outlet 13 is connected to first liquid outlets 4.1 of a jet former 20 of the shower head 1, and the fourth liquid outlet 14 is connected to second liquid outlets 4.2 of the jet former 20 of the shower head 1, so that the liquid 18 can be supplied from the third liquid outlet 13 to the first liquid outlets 4.1 and from the fourth liquid outlet 14 to the second liquid outlets 4.2.
[0031] The third fluidic oscillator 7 has a fifth liquid outlet 15 and a sixth liquid outlet 16. The fifth liquid outlet 15 is connected to third liquid outlets 4.3 of the jet former 20 of the shower 1, and the sixth liquid outlet 16 is connected to fourth liquid outlets 4.4 of the jet former 20 of the shower 1, so that the liquid 18 can be supplied from the fifth liquid outlet 15 to the third liquid outlets 4.3 and from the sixth liquid outlet 16 to the fourth liquid outlets 4.4.
[0032] The shower head 1 is particularly characterized by low fluid consumption, low part complexity and low noise emissions.
[0033] List of reference symbols
[0034] 1 shower
[0035] 2 housings
[0036] 3 Liquid inlet
[0037] 4.1, 4.2, 4.3, 4.4 Liquid outlet
[0038] 5 first fluidic oscillator
[0039] 6 second fluidic oscillator
[0040] 7 third fluidic oscillator
[0041] 8 first liquid inlet
[0042] 9 second liquid inlet
[0043] 10 third liquid inlet
[0044] 11 first fluid drain
[0045] 12 second fluid drain
[0046] 13 third fluid drain
[0047] 14 fourth fluid drain
[0048] 15 fifth fluid drain
[0049] 16 sixth fluid drain
[0050] 17 Fluid flow
[0051] 18 Liquid
[0052] 19 second oscillator stage
[0053] 20 beam formers
[0054] 21 first oscillator stage
Claims
Patent claims 1. Shower (1) for a sanitary fitting, comprising at least: - a housing (2) with a liquid inlet (3) for a liquid (18) and a plurality of liquid outlets (4.1, 4.2, 4.3, 4.4) for the liquid (18); - at least one first fluidic oscillator (5) with a first liquid inlet (8) connected to the liquid inlet (3); and - at least one second fluidic oscillator (6) with a second liquid inlet (9), to which the liquid (18) can be fed from the at least one first fluidic oscillator (5) and from which the liquid (18) can be fed to at least one of the liquid outlets (4.1, 4.2, 4.3, 4.4).
2. Shower (1) according to claim 1, wherein the at least one first fluidic oscillator (5) and the at least one second fluidic oscillator (6) are arranged in a series circuit.
3. Shower (1) according to one of the preceding claims, wherein the at least one second fluidic oscillator (6) is connected to a first liquid outlet (11) of the at least one first fluidic oscillator (5).
4. Shower (1) according to one of the preceding claims, comprising at least one third fluidic oscillator (7) with a third liquid inlet (10), to which the liquid (18) can be fed from the at least one first fluidic oscillator (5) and from which the liquid (18) can be fed to at least one of the liquid outlets (4.1, 4.2, 4.3, 4.4).
5. Shower (1) according to claim 4, wherein the at least one first fluidic oscillator (5) and the at least one third fluidic oscillator (7) are arranged in a series circuit.
6. Shower (1) according to claim 4 or 5, wherein the at least one third fluidic oscillator (7) is connected to a second liquid outlet (12) of the at least one first fluidic oscillator (5).
7. Shower (1) according to one of claims 4 to 6, wherein the at least one second fluidic oscillator (6) and the at least one third fluidic oscillator (7) are arranged in a parallel circuit.
8. Shower (1) according to one of the preceding claims, wherein the liquid (18) can be supplied from a third liquid outlet (13) of the at least one second fluidic oscillator (6) to at least one first liquid outlet (4.1) of the housing (2) and from a fourth liquid outlet (14) of the at least one second fluidic oscillator (6) to at least one second liquid outlet (4.2) of the housing (2).
9. Shower (1) according to one of claims 4 to 7, wherein the liquid (18) can be fed from a fifth liquid outlet (15) of the at least one third fluidic oscillator (7) to at least one third liquid outlet (4.3) of the housing (2) and from a sixth liquid outlet (16) of the at least one third fluidic oscillator (7) to at least one fourth liquid outlet (4.4) of the housing (2).
10. Shower (1) according to one of the preceding claims, wherein the at least one first fluidic oscillator (5), the at least one second fluidic oscillator (6) or at least one third fluidic oscillator (7) are formed in at least one liquid guide (17) of the shower (1).