Spray head for bathroom accessory

Abstract

The invention relates to a spray head (1) for a sanitary fitting, comprising at least: a housing (2) having 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 fluid oscillator (5) having a first liquid inlet (8) which communicates with the liquid inlet (3); and-at least one second fluid oscillator (6) having a second liquid inlet (9), to which the liquid (18) can be fed from the at least one first fluid oscillator (5) and from which the liquid (18) can be conducted to at least one of the liquid outlets (4.1, 4.2, 4.3, 4.4).

Description

Technical Field

[0001] The present invention relates to a showerhead / shower / shower rose for sanitary fitting. Sanitary fittings are especially used to supply liquids, especially water, to sinks, washbasins, showers or bathtubs as required. Background Art

[0002] For example, a showerhead for sanitary fitting can be designed in the form of an overhead shower, a hand-held showerhead and / or a side showerhead, and / or for distributing the liquid output by the sanitary fitting over a large area. In addition, such showerheads are known, with which a liquid can be output in the form of at least one jet, for example in the form of a rain jet, a water column jet, a massage jet or a bead jet, by means of at least one jet former. The form of the jet to be output can be selected by a control element at the showerhead, by which a valve for an individual jet former in the liquid input channel can be controlled.

[0003] In order to reduce liquid consumption, such showerheads are known, with which the liquid can be output pulsatingly by mechanical components (such as, for example, a flapper). However, this results in a complex structure of the showerhead and a large number of components of the showerhead, which increases the manufacturing cost of the showerhead. In addition, the mechanical components may cause noise pollution. In addition, the liquid consumption can be reduced by reducing the amount of liquid output by the showerhead, for example in such a way that: the number and / or diameter of the liquid outlets of the showerhead are reduced. However, this may result in that the liquid cannot be distributed over a sufficient large area by the showerhead, the cleaning performance of the showerhead is reduced and / or the user of the showerhead may find the output liquid jet uncomfortable. Summary of the Invention

[0004] Therefore, the object of the present invention is to solve at least partially the problems set forth with reference to the prior art, and in particular to provide a showerhead by which the liquid consumption can be reduced, which has a low part complexity and is characterized by a low noise emission.

[0005] This object is achieved by a showerhead having the features according to the independent claims. Other advantageous embodiments of the present invention are given in the dependent claims. It should be noted that the features listed separately in the dependent claims can be combined with each other in any technically reasonable way and define further embodiments of the present invention. In addition, the features given in the claims are explained in more detail and interpreted in the description, wherein further preferred embodiments of the present invention are shown.

[0006] Contributing thereto is a showerhead for sanitary fitting, which showerhead has at least the following components:

[0007] - a housing, which housing has a liquid inlet for the liquid and a plurality of liquid outlets for the liquid;

[0008] - At least one first fluid oscillator having a first liquid inlet that communicates with the liquid inlet; and

[0009] - At least one second fluid oscillator having a second liquid inlet, wherein liquid can be conveyed from at least one first fluid oscillator to the second liquid inlet, and liquid can be directed from the second liquid inlet to at least one of the liquid outlets of the liquid outlet.

[0010] Sanitary equipment fittings are especially used to supply liquids, especially water, to sinks, washbasins, showers or bathtubs as required. For this purpose, cold water with a cold water temperature and hot water with a hot water temperature can be conveyed to the sanitary equipment fittings. The cold water and the hot water can be mixed into mixed water with a desired mixed water temperature by the sanitary equipment fittings, for example, by means of a mixing valve or a thermostatic mixing cartridge. The cold water temperature is especially at most 25 °C (degrees Celsius), preferably 1 °C to 25 °C, particularly preferably 5 °C to 20 °C, and / or the hot water temperature is especially at most 90 °C, preferably 25 °C to 90 °C, particularly preferably 55 °C to 65 °C. Subsequently, the mixed water can be conveyed to a shower head, for example, via a liquid pipeline or a liquid hose. The shower head is implemented in the form of, for example, an overhead shower / rain shower, a hand-held shower head or a side shower head. The shower head can be fixedly connected to a carrier, such as a wall, or can be moved by the user. Liquids in various different jet forms can be sprayed by means of the shower head.

[0011] The shower head has a housing having 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 at least partially made of metal and / or plastic. The liquid can be conveyed to the shower head via the liquid inlet of the housing. The liquid inlet can especially be connected to the liquid pipeline or the liquid hose of the sanitary equipment fitting. The liquid can be output to the surrounding environment of the shower head via the liquid outlet. The liquid outlet can be configured in the form of an opening and / or a nozzle, for example. The liquid outlet can be formed at at least one jet former of the shower head. By means of at least one jet former, liquids in especially at least one jet form, such as a rain-like jet, a water column jet, a massage jet, a hard jet, a soft jet and / or a bead jet form, can be output. The liquid outlets can be arranged in the shower head area of the shower head.

[0012] The nozzle includes at least one first fluid oscillator, and the first fluid oscillator has a first liquid input portion. Liquid can be conveyed from the liquid inlet of the housing to at least one first fluid oscillator via the first liquid input portion. At least one (first) liquid channel can lead from the liquid inlet to the first liquid input portion. At least one first fluid oscillator is particularly arranged and / or constructed in the housing. A fluid oscillator is a technical device that operates based on fluid dynamics or the principle of flow instability. In the fluid oscillator, liquid can be guided in such a way that an unstable flow is generated, and this unstable flow causes vibration. Through the (at least one first) fluid oscillator, the liquid conveyed via the liquid input portion can be output as an oscillating or (periodic) vibrating flow via two liquid output portions of the (at least one first) fluid oscillator, particularly a first liquid output portion and a second liquid output portion. This particularly means that the liquid output via one of the two liquid output portions decreases and increases, while the liquid output via the corresponding other liquid output portion (in the opposite direction) increases and decreases. Therefore, the sum of the volume flow rates of the liquid output via the two liquid output portions corresponds to the volume flow rate of the liquid conveyed via the liquid input portion. The liquid can be output by at least one first fluid oscillator particularly at a first oscillation frequency. The fluid oscillator particularly does not have movable parts (relative to the nozzle and / or the housing) and / or does not have electrical components. At least one first fluid oscillator can particularly be a fluidic feedback oscillator.

[0013] The nozzle includes at least one second fluid oscillator, and the second fluid oscillator has a second liquid input portion. Liquid can be conveyed (in an oscillating or vibrating manner) from at least one first fluid oscillator to the second liquid input portion. At least one second fluid oscillator can have the same operating mode as at least one first fluid oscillator and / or can be constructed the same as at least one first fluid oscillator. At least one second fluid oscillator is particularly arranged and / or constructed in the housing. At least one first fluid oscillator can be in communication with at least one second fluid oscillator via a (second) liquid channel. At least one second fluid oscillator is arranged or constructed downstream of at least one first fluid oscillator in the flow direction of the liquid. At least one first fluid oscillator can form the first oscillation stage of the nozzle, and at least one second fluid oscillator can form the second oscillation stage of the nozzle. Through at least one second fluid oscillator, the liquid conveyed via the second liquid input portion can be output as an oscillating or (periodic) vibrating flow via two liquid output portions of at least one second fluid oscillator, particularly a third liquid output portion and a fourth liquid output portion. The liquid can be output by at least one second fluid oscillator at a second oscillation frequency. The second oscillation frequency can be less than the first oscillation frequency and / or be half of the first oscillation frequency. Thus, the liquid can be output by the nozzle in an optimal pulse generation manner.

[0014] At least one second fluid oscillator especially has no movable parts (relative to the nozzle and / or the housing) and / or has no electrical components. At least one second fluid oscillator can especially be a fluid feedback oscillator.

[0015] Liquid can be conveyed from at least one second fluid oscillator to at least one or a plurality of liquid outlets among the liquid outlets. For this purpose, at least one second fluid oscillator can be in communication with at least one or a plurality of liquid outlets among the liquid outlets via at least one conveying channel.

[0016] At least one first fluid oscillator and at least one second fluid oscillator can be arranged in series. This can especially mean that at least one first fluid oscillator and at least one second fluid oscillator are arranged or configured in a row.

[0017] At least one second fluid oscillator can be in communication with the first liquid output of at least one first fluid oscillator. In particular, the second liquid input of at least one second fluid oscillator can especially be in communication with the first liquid output of at least one first fluid oscillator via a (second) liquid channel.

[0018] The nozzle can have at least one third fluid oscillator, which has a third liquid input. Liquid can be conveyed (in an oscillating or vibrating manner) from at least one first fluid oscillator to the third liquid input, and the liquid can be guided from the third liquid input to at least one of the liquid outlets. At least one third fluid oscillator can have the same operating mode as at least one first fluid oscillator and / or at least one second fluid oscillator, and / or can be configured to be the same as at least one first fluid oscillator and / or at least one second fluid oscillator. At least one third fluid oscillator is especially arranged and / or configured in the housing. At least one first fluid oscillator can be in communication with at least one third fluid oscillator via a (third) liquid channel. At least one third fluid oscillator is arranged or configured downstream of at least one first fluid oscillator in the flow direction of the liquid. At least one second fluid oscillator and at least one third fluid oscillator can form a second oscillation stage of the nozzle. Through at least one third fluid oscillator, the liquid conveyed via the third liquid input can be output as an oscillating or (periodic) vibrating flow via two liquid outputs of at least one third fluid oscillator, especially a fifth liquid output and a sixth liquid output. The liquid can be output through at least one third fluid oscillator at a third oscillation frequency, and the third oscillation frequency can especially correspond to the second oscillation frequency. The third oscillation frequency can be less than the first oscillation frequency and / or be half of the first oscillation frequency. Thereby, the liquid can be output through the nozzle in an optimal pulse generation manner.

[0019] At least one third fluid oscillator especially has no movable parts (relative to the nozzle and / or the housing) and / or no electrical components. At least one third fluid oscillator can especially be a fluid feedback oscillator.

[0020] Liquid can be conveyed from at least one third fluid oscillator to at least one or a plurality of liquid outlets among the liquid outlets. For this purpose, at least one third fluid oscillator can be in communication with at least one or a plurality of liquid outlets among the liquid outlets via at least one conveying channel. By means of at least one third fluid oscillator, the number of liquid outlets to which liquid can be conveyed in an oscillating manner can be increased.

[0021] At least one first fluid oscillator and at least one third fluid oscillator can be arranged in series. This can especially mean that at least one first fluid oscillator and at least one third fluid oscillator are arranged or configured in a row.

[0022] At least one third fluid oscillator can be in communication with the second liquid output of at least one first fluid oscillator. In particular, the third liquid input of at least one third fluid oscillator can be in communication with the second liquid output of at least one first fluid oscillator via a (third) liquid channel.

[0023] At least one second fluid oscillator and at least one third fluid oscillator can be arranged in parallel with each other. This can especially mean that at least one second fluid oscillator and at least one third fluid oscillator are arranged or configured parallel to each other. One second fluid oscillator and one third fluid oscillator can especially form a pair of fluid oscillators in the second oscillation stage and / or be in parallel with each other in pairs. Each pair of fluid oscillators can be connected to the first fluid oscillator or each fluid oscillator in the pair via one of the two liquid outputs of the first fluid oscillator. At least one second fluid oscillator and at least one third fluid oscillator can be flowed into by the liquid oscillatingly output by at least one first fluid oscillator, especially alternately flowed into by this liquid, and each cause the liquid to flow out oscillatingly at its liquid output. The liquid flowing into at least one first fluid oscillator via the first liquid input can be distributed to at least four liquid outputs of at least one second fluid oscillator and at least one third fluid oscillator. The liquid can be alternately output at the liquid outlet at a uniform oscillation frequency via these at least four liquid outputs.

[0024] The liquid can be guided from a third liquid outlet of at least one second fluid oscillator to at least one first liquid outlet of the housing, and can be guided from a fourth liquid outlet of at least one second fluid oscillator to at least one second liquid outlet of the housing. The third liquid outlet can communicate with at least one first liquid outlet of the housing via at least one conveying channel, and the fourth liquid outlet can communicate with at least one second liquid outlet of the housing via at least one (especially independent) conveying channel.

[0025] The liquid can be guided from a fifth liquid outlet of at least one third fluid oscillator to at least one third liquid outlet of the housing, and can be guided from a sixth liquid outlet of at least one third fluid oscillator to at least one fourth liquid outlet of the housing. The fifth liquid outlet can communicate with at least one third liquid outlet of the housing via at least one (especially independent) conveying channel, and the sixth liquid outlet can communicate with at least one fourth liquid outlet of the housing via at least one (especially independent) conveying channel.

[0026] At least one first fluid oscillator, at least one second fluid oscillator and / or at least one third fluid oscillator can be constructed in at least one liquid guide of the nozzle head. The liquid guide can especially be at least partially made of plastic and / or metal. The liquid guide can be configured as a plastic injection molding. The liquid can be guided in the housing through the liquid guide especially at least partially without contacting the housing. The liquid can be conveyed through the liquid guide especially to at least one first fluid oscillator, at least one second fluid oscillator, at least one third fluid oscillator and / or at least one of the liquid outlets. At least one of a first liquid channel, a second liquid channel, a third liquid channel and / or at least one conveying channel can be at least partially constructed in the liquid guide. The liquid guide can be at least partially arranged in the housing. The liquid guide can be at least one jet former. At least one first fluid oscillator, at least one second fluid oscillator and / or at least one third fluid oscillator can (specifically its flow geometry) be formed in at least one liquid guide (especially during injection molding) and / or can be part of an existing liquid path or channel of at least one liquid guide. At least one first fluid oscillator, at least one second fluid oscillator and / or at least one third fluid oscillator can be integrally formed with and / or materially locked to at least one liquid guide. Thereby, at least one first fluid oscillator, at least one second fluid oscillator and / or at least one third fluid oscillator do not require additional components, which reduces the part complexity. Description of the Drawings

[0027] The present invention and the technical environment will now be explained in more detail with reference to the drawings. It should be noted that the drawings show a particularly preferred exemplary variant of the present invention, but the present invention is not limited thereto. Exemplarily and schematically:

[0028] Figure 1 The spray head is shown in exploded view. Detailed Description of the Invention

[0029] Figure 1 The spray head 1 with a housing 2 is shown in exploded view. Here, the spray head 1 is an overhead shower. The housing 2 includes a liquid inlet 3 for a liquid 18. The liquid inlet 3 is in communication with a first liquid input 8 of a first fluid oscillator 5, so that the liquid 18 can be conveyed from the liquid inlet 3 to the first fluid oscillator 5. The first fluid oscillator 5 forms a first oscillation stage 21 of the spray head 1. The first fluid oscillator 5 has a first liquid outlet 11 and a second liquid outlet 12, and the liquid 18 can be output in an oscillating manner through these two liquid outlets by the first fluid oscillator 5.

[0030] The spray head 1 includes a second fluid oscillator 6 with a second liquid input 9 and a third fluid oscillator 7 with a third liquid input 10. The second liquid input 9 of the second fluid oscillator 6 is in communication with the first liquid outlet 11 of the first fluid oscillator 5, so that the liquid 18 can be conveyed from the first fluid oscillator 5 to the second fluid oscillator 6. The third liquid input 10 of the third fluid oscillator 7 is in communication with the second liquid outlet 12 of the first fluid oscillator 5, so that the liquid 18 can be conveyed from the first fluid oscillator 5 to the third fluid oscillator 7. On the one hand, the first fluid oscillator 5 and the second fluid oscillator 6 are arranged in series with each other, and on the other hand, the first fluid oscillator 5 and the third fluid oscillator 7 are arranged in series with each other. The second fluid oscillator 6 and the third fluid oscillator 7 form a second oscillation stage 19 of the spray head 1 and are arranged in parallel with each other. The first fluid oscillator 5, the second fluid oscillator 6 and the third fluid oscillator 7 can be constructed in a liquid guide 17 of the spray head 1.

[0031] The second fluid oscillator 6 has a third liquid outlet 13 and a fourth liquid outlet 14. The third liquid outlet 13 is in communication with a first liquid outlet 4.1 of a jet former 20 of the spray head 1, and the fourth liquid outlet 14 is in communication with a second liquid outlet 4.2 of the jet former 20 of the spray head 1, so that the liquid 18 can be guided from the third liquid outlet 13 to the first liquid outlet 4.1 and can be guided from the fourth liquid outlet 14 to the second liquid outlet 4.2.

[0032] The third fluid oscillator 7 has a fifth liquid output section 15 and a sixth liquid output section 16. The fifth liquid output section 15 communicates with the third liquid outlet 4.3 of the jet former 20 of the nozzle 1, and the sixth liquid output section 16 communicates with the fourth liquid outlet 4.4 of the jet former 20 of the nozzle 1, so that the liquid 18 can be guided from the fifth liquid output section 15 to the third liquid outlet 4.3 and can be guided from the sixth liquid output section 16 to the second liquid outlet 4.4.

[0033] The nozzle 1 is particularly notable for its low liquid consumption, low component complexity, and low noise emissions.

[0034] List of reference numerals

[0035] 1 Nozzle

[0036] 2 Housing

[0037] 3 Liquid inlet

[0038] 4.1, 4.2, 4.3, 4.4 Liquid outlets

[0039] 5 First fluid oscillator

[0040] 6 Second fluid oscillator

[0041] 7 Third fluid oscillator

[0042] 8 First liquid input section

[0043] 9 Second liquid input section

[0044] 10 Third liquid input section

[0045] 11 First liquid output section

[0046] 12 Second liquid output section

[0047] 13 Third liquid output section

[0048] 14 Fourth liquid output section

[0049] 15 Fifth liquid output section

[0050] 16 Sixth liquid output section

[0051] 17 Liquid guide

[0052] 18 Liquid

[0053] 19 Second oscillation stage

[0054] 20 Jet former

[0055] 21 First oscillation stage

Claims

1. A spray head (1) for bathroom accessories, the spray head having at least: a housing (2) having 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) having a first liquid input (8) which communicates with the liquid inlet (3); and - at least one second fluid oscillator (6), which has a second liquid inlet (9), to which liquid (18) can be supplied from at least one first fluid oscillator (5), and from which the liquid (18) can be guided to at least one of the liquid outlets (4.1, 4.2, 4.3, 4.4).

2. The nozzle (1) according to claim 1, wherein: The at least one first fluid oscillator (5) and the at least one second fluid oscillator (6) are arranged in series.

3. The spray head (1) according to any one of the preceding claims, wherein: The at least one second fluid oscillator (6) is connected to the first liquid output portion (11) of the at least one first fluid oscillator (5).

4. A spray head (1) according to any one of the preceding claims, wherein: The nozzle has at least one third fluid oscillator (7), which has a third liquid inlet (10), to which liquid (18) can be supplied from the at least one first fluid oscillator (5), and from which the liquid (18) can be guided to at least one of the liquid outlets (4.1, 4.2, 4.3, 4.4).

5. The nozzle (1) according to claim 4, wherein: At least one first fluid oscillator (5) and at least one third fluid oscillator (7) are arranged in series.

6. The nozzle (1) according to claim 4 or 5, wherein: At least one third fluid oscillator (7) is connected to the second liquid output portion (12) of at least one first fluid oscillator (5).

7. The spray head (1) according to any one of claims 4 to 6, wherein: At least one second fluid oscillator (6) and at least one third fluid oscillator (7) are arranged in parallel.

8. A spray head (1) according to any one of the preceding claims, wherein: Liquid (18) can be guided from a third liquid output portion (13) of at least one second fluid oscillator (6) to at least one first liquid outlet (4.1) of the housing (2), and can be guided from a fourth liquid output portion (14) of at least one second fluid oscillator (6) to at least one second liquid outlet (4.2) of the housing (2).

9. The spray head (1) according to any one of claims 4 to 7, wherein: Liquid (18) can be guided from a fifth liquid output (15) of at least one third fluid oscillator (7) to at least one third liquid outlet (4.3) of the housing (2) and can be guided from a sixth liquid output (16) of at least one third fluid oscillator (7) to at least one fourth liquid outlet (4.4) of the housing (2).

10. The spray head (1) according to any one of the preceding claims, wherein: At least one first fluid oscillator (5), at least one second fluid oscillator (6) and / or at least one third fluid oscillator (7) are configured in at least one liquid guide (17) of the spray head (1).

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