Shower device

Abstract

According to embodiments of the present invention, a shower device may be provided comprising: a mixing module including a faucet connection part connected to a cold water faucet and a hot water faucet and a mixing part that mixes cold source water and hot source water flowing in from the faucet connection part; a filter that filters foreign substances from the mixed source water discharged from the mixing module to provide purified water; a sensor module including a flow sensor that detects the flow rate of the mixed source water; a replacement time calculator including a calculation part that measures the usage of the mixed source water based on the flow rate of the mixed source water detected by the flow sensor and determines that it is time to replace the filter when the accumulated measured usage of the mixed source water reaches a set flow rate; and a frame including a filter support part on which the filter is mounted, wherein the calculation part is configured to change the value of the set flow rate or compensate for the accumulated measured usage of the mixed source water by means of an input control signal.

Description

Technology Field

[0001] The present invention relates to a shower device. Background Technology

[0002] Generally, shower devices are installed on the walls of bathrooms or bathhouses to supply water to users. These shower devices can be operated daily by users who wish to wash their faces or take a bath. Meanwhile, since water sources are contaminated with pollutants resulting from modern industrialization, as well as garbage and animal waste, chemicals such as disinfectants are added to the water during the purification process. Furthermore, due to the aging of pipes supplying tap water to homes, the tap water used in households contains various foreign substances, such as rust.

[0003] Recently, many households are installing filters in their shower systems to filter out water containing such impurities. Users can receive purified water filtered by the filters provided in these shower systems. In addition, conventional shower systems incorporate a module that determines the replacement time to facilitate filter maintenance.

[0004] However, conventional shower systems determine the filter replacement time based solely on water usage information, without considering the installation environment. Consequently, conventional shower systems have a problem in that it is difficult to accurately determine the filter replacement time because they fail to account for the amount of impurities contained in the water. In other words, while a filter has a shorter lifespan when filtering highly contaminated water compared to when filtering less contaminated water, determining the replacement time based only on water usage information can lead to a misjudgment that the filter still has remaining lifespan.

[0005] In this regard, Korean Registered Patent Publication 10-2090060 "IoT self-powered hydroelectric filter shower capable of checking temperature, filter and water usage (Patent Document 1)" discloses a shower capable of determining the replacement time of the filter.

[0006] However, the filter shower disclosed in Patent Document 1 determines the filter replacement time based solely on information regarding water usage and does not consider the contamination level of the water supplied to the shower. For example, if the filter shower filters highly contaminated water, it determines that the filter replacement time has not arrived even though the filter's lifespan has ended. As such, the filter shower disclosed in Patent Document 1 has a problem in that it cannot accurately determine the filter replacement time.

[0007] In addition, Korean Registered Patent Publication No. 10-2123595 of Ionia Co., Ltd., "Shower head assembly capable of checking the replacement cycle of a filter" (Patent Document 2), discloses a shower head assembly equipped with a notification means for indicating the replacement cycle of a filter.

[0008] However, the shower head assembly disclosed in Patent Document 2 detects the real-time flow rate of water and determines the replacement cycle of the filter based on the detected flow rate, but does not take into account the contamination level of the water supplied to the shower. Therefore, similar to the example in Patent Document 1 above, if the filter shower filters highly contaminated water, it is determined that the time for filter replacement has not arrived even though the filter's lifespan has ended. As such, the shower head assembly disclosed in Patent Document 2 has a problem in that it cannot accurately determine the time for filter replacement. Prior art literature

[0009] Korean Registered Patent Publication 10-2090060 (Registered March 17, 2020) Korean Registered Patent Publication 10-2123595 (Registered June 26, 2020) The problem to be solved

[0010] One embodiment of the present invention was invented against the background described above and aims to provide a shower device capable of setting the replacement time of a filter according to the contamination level of the raw water. means of solving the problem

[0011] According to one aspect of the present invention, a shower device may be provided comprising: a mixing module including a faucet connection part connected to a cold water faucet and a hot water faucet and a mixing part for mixing cold source water and hot source water flowing in from the faucet connection part; a filter that filters foreign substances from the mixed source water discharged from the mixing module to provide purified water; a sensor module including a flow sensor that detects the flow rate of the mixed source water; a replacement time calculator including a calculation part that measures the usage of the mixed source water based on the flow rate of the mixed source water detected by the flow sensor and determines that it is time to replace the filter when the accumulated measured usage of the mixed source water reaches a set flow rate; and a frame including a filter support part on which the filter is mounted, wherein the calculation part is configured to change the value of the set flow rate or compensate for the accumulated measured usage of the mixed source water by a control signal input from the outside.

[0012] In addition, a shower device may be provided in which the replacement timing calculator has a plurality of reference flow rates and sets one of the plurality of reference flow rates to the set flow rate according to a control signal input from the outside.

[0013] Additionally, a shower device may be provided in which the replacement time calculator sets the compensated accumulated usage of the mixed raw water by compensating it to be less or more than the actual usage of the mixed raw water according to the control signal input from the outside, and determines that it is time to replace the filter when the compensated accumulated usage of the mixed raw water reaches the set flow rate.

[0014] Additionally, the sensor module further includes a contamination sensor for measuring the contamination level of the mixed raw water, and a shower device may be provided in which the control signal input to the replacement time calculator is generated based on the contamination level measured by the contamination sensor.

[0015] In addition, the above replacement time calculator may further include a reset button for initializing the accumulated usage of the mixed raw water, and a shower device may be provided.

[0016] Additionally, the filter support may further include a filter receiving portion in which the filter is received; and a filter cover that covers the filter receiving portion, and a shower device may be provided in which the reset button is covered by the filter cover.

[0017] Additionally, the sensor module further includes a filter sensor capable of detecting when the filter is removed from or installed on the filter support, and the shower device may be provided such that the replacement time calculator initializes the accumulated usage of the mixed raw water when the removal or installation of the filter is detected by the filter sensor.

[0018] Additionally, the above filter support may be provided with a shower device comprising a waterproof housing that accommodates a battery that supplies power to the above replacement time calculator.

[0019] Additionally, a shower device may be provided that further includes a display unit for displaying the amount of the mixed raw water measured over a day and the amount of the mixed raw water accumulated since the filter was installed.

[0020] In addition, a shower device may be provided in which the display portion is positioned above the filter and supported by the filter support portion.

[0021] Additionally, a shower device may be provided that further includes a shower head (800) for discharging the above-mentioned water, wherein the shower head (800) comprises one or more of a fixed head (810) supported on the frame (500) above the replacement time calculator (300) and a handheld head (820) mounted on the frame (500). Effects of the invention

[0022] According to one embodiment of the present invention, a shower device can determine the replacement time of a filter more accurately. Brief explanation of the drawing

[0023] FIG. 1 is a block diagram of a shower device according to a first embodiment of the present invention. FIG. 2 is a perspective view of a shower device according to a first embodiment of the present invention. Figure 3 is a drawing showing a display part supported by the shower device of Figure 2. FIG. 4 is a perspective view of a shower device showing the filter cover of FIG. 2 separated from the filter receiving portion. FIG. 5 is an enlarged view of part A showing the input button and reset button supported on the filter support part of FIG. 4. FIG. 6 is a block diagram of a shower device according to a second embodiment of the present invention. Specific details for implementing the invention

[0024] Hereinafter, specific embodiments for implementing the technical concept of the present invention will be described in detail with reference to the drawings.

[0025] In addition, in describing the present invention, if it is determined that a detailed description of related known components or functions may obscure the essence of the invention, such detailed description is omitted.

[0026] Furthermore, when it is mentioned that one component is 'connected,' 'supported,' or 'supplied' to another component, it should be understood that while it may be directly connected, supported, or supplied to that other component, there may also be other components present in between.

[0027] The terms used in this specification are used merely to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise.

[0028] Furthermore, it should be noted in advance that expressions such as "upper side," "lower side," and "side" in this specification are described based on the drawings, and may be expressed differently if the orientation of the object changes. For the same reason, some components in the attached drawings may be exaggerated, omitted, or schematically depicted, and the size of each component does not entirely reflect its actual size.

[0029] Additionally, terms including ordinal numbers, such as first, second, etc., may be used to describe various components, but such components are not limited by such terms. These terms are used solely for the purpose of distinguishing one component from another.

[0030] The meaning of "comprising" as used in the specification specifies certain characteristics, regions, integers, steps, actions, elements, and / or components, and does not exclude the existence or addition of other specific characteristics, regions, integers, steps, actions, elements, components, and / or groups.

[0031] A shower device (1) according to a first embodiment of the present invention will be described below with reference to the drawings. Referring to FIGS. 1 and 2, the shower device (1) according to a first embodiment of the present invention may include a filter (100), a sensor module (200), a replacement time calculator (300), a display unit (400), a frame (500), a mixing module (600), a distribution module (700), a shower head (800), a concentration detector (900), and a battery (not shown).

[0032] Referring further to FIG. 3, the filter (100) can filter out foreign substances from the mixed raw water discharged from the mixing module (600) to provide purified water. This filter (100) can be detachably supported on the filter support member (510) to be described later. Here, the mixed raw water is raw water mixed with cold raw water and hot raw water, the cold raw water is raw water cooled to a predetermined temperature, and the hot raw water is raw water heated to a predetermined temperature. The foreign substances contained in the mixed raw water may include rust, chemical components, impurities, etc.

[0033] The sensor module (200) may include a flow sensor (210), a filter sensor (220), and a temperature sensor (230).

[0034] A flow sensor (210) is placed in a mixed raw water path through which mixed raw water flows to detect the flow rate of the mixed raw water. The flow rate information of the mixed raw water detected by the flow sensor (210) can be transmitted to a replacement time calculator (300).

[0035] The filter sensor (220) can detect whether the filter (100) is removed from the filter support (510) or installed on the filter support (510). In other words, the filter sensor (220) can detect whether the filter (100) is replaced. Additionally, information regarding the removal and installation of the filter (100) detected by the filter sensor (220) can be transmitted to the replacement time calculator (300).

[0036] A temperature sensor (230) may be placed in one or more of a mixed raw water flow path through which mixed raw water flows and a purified water flow path through which purified water flows. Such a temperature sensor (230) can detect the temperature of one or more of the mixed raw water and purified water. Additionally, information on the temperature detected by the temperature sensor (230) may be transmitted to a display unit (400).

[0037] Referring further to FIGS. 4 and FIGS. 5, the replacement time calculator (300) can determine the replacement time of the filter (100). Additionally, the replacement time calculator (300) can display the replacement time of the filter (100) through the display unit (400). This replacement time calculator (300) may include a calculation unit (310), an input button (320), and a reset button (330).

[0038] The calculation unit (310) can accumulate and measure the amount of mixed raw water used based on the flow rate of the mixed raw water detected by the flow sensor (210). Additionally, the calculation unit (310) can determine that it is time to replace the filter when the accumulated amount of mixed raw water used reaches a set flow rate. Furthermore, the calculation unit (310) can change the value of the set flow rate or compensate for the accumulated amount of mixed raw water used by means of a control signal input and transmitted to the user's terminal and input button (320) of the shower device (1). Such a terminal may be a mobile phone, but is not limited thereto.

[0039] For example, the calculation unit (310) may be configured to compensate for the usage of the mixed raw water accumulated and measured by a control signal. The control signal may be a signal transmitted from the user's terminal of the shower device (1) or a signal generated from an input button (320). Additionally, the calculation unit (310) may determine that it is time to replace the filter (100) when the compensated accumulated usage of the mixed raw water reaches a set flow rate.

[0040] To be more specific, if the contamination level of the mixed raw water is high, the shower device (1) can be operated by the user to compensate for and measure a larger amount than the actual accumulated amount of mixed raw water used. Conversely, if the contamination level of the mixed raw water is low, the shower device (1) can be operated by the user to compensate for and measure a smaller amount than the actual accumulated amount of mixed raw water used. The user can measure the contamination level of the mixed raw water using a concentration detector (900) and compensate the shower device (1) based on the contamination level of the mixed raw water.

[0041] As another example, the operation unit (310) has multiple reference flow rates and can set any one of the multiple reference flow rates as a set flow rate according to a control signal. In other words, the control signal may be a signal for selecting any one of the multiple reference flow rates.

[0042] More specifically, the multiple standard flow rates may include a first standard flow rate, a second standard flow rate which is a value higher than the first standard flow rate, and a third standard flow rate which is a value higher than the second standard flow rate. When the contamination level of the mixed raw water is high, the shower device (1) can be operated by the user so that the first standard flow rate is set as the set flow rate. Since the amount of water that the filter (100) can filter within its lifespan decreases when the contamination level of the mixed raw water is high, the shower device (1) can determine that the time for filter replacement has arrived when a relatively small amount is accumulated and measured. Conversely, when the contamination level of the mixed raw water is low, the shower device (1) can be operated by the user so that the third standard flow rate is set as the set flow rate. Since the amount of water that the filter (100) can filter within its lifespan increases when the contamination level of the mixed raw water is low, the shower device (1) can determine that the time for filter replacement has arrived when a relatively large amount is accumulated and measured. The user can measure the contamination level of the mixed raw water with a concentration detector (900) and compensate for the contamination level of the mixed raw water by operating the shower device (1) based on the contamination level of the mixed raw water.

[0043] Additionally, the calculation unit (310) can reset the accumulated amount of mixed raw water usage. For example, the calculation unit (310) can reset the accumulated amount of mixed raw water usage when it receives a reset signal. The reset signal may be generated from the reset button (330) when the user presses the reset button (330), but it may also be transmitted from an external terminal via wireless communication, etc. Meanwhile, as another example, the calculation unit (310) can reset the accumulated amount of mixed raw water usage when the filter sensor (220) detects that the filter (100) is removed from or installed on the filter support (510).

[0044] The input button (320) can generate a control signal to be input to the calculation unit (310). Based on the control signal generated from the input button (320), the calculation unit (310) can change the value of the set flow rate or compensate for the accumulated amount of the mixed raw water used.

[0045] The reset button (330) can reset the accumulated amount of mixed raw water used. After replacing the filter (100), the user presses the reset button (330) to reset the accumulated amount of mixed raw water used, and the calculation unit (310) can measure the amount of mixed raw water used by accumulating it from 0.

[0046] The display unit (400) can visually display one or more of the following values: the replacement time of the filter (100), the temperature of the mixed raw water or purified water measured by the temperature sensor (230), the battery capacity, the usage amount of the mixed raw water, and the set flow rate. Additionally, the usage amount of the mixed raw water displayed on the display unit (400) may include the usage amount of the mixed raw water measured over a day and the usage amount of the mixed raw water accumulated since the filter (100) was installed. Furthermore, the display unit (400) may be supported on a frame (500) so as to be positioned above the filter (100) in order to be placed at the user's eye level.

[0047] Referring again to FIGS. 2 and FIGS. 3, the frame (500) may be the exterior of the shower device (1). This frame (500) may accommodate a filter (100), a replacement time calculator (300), a mixing module (600), a distribution module (700), a concentration detector (900), and a battery. This frame (500) may include a filter support (510) and a head mounting part (520).

[0048] The filter support (510) can accommodate the filter (100) so that it can be detachably attached. This filter support (510) may include a filter receiving portion (511), a filter cover (512), and a waterproof housing (not shown).

[0049] The filter receiving section (511) may have a portion of its front open to provide a receiving space (S) capable of receiving a filter (100). The filter (100) can be removed through the open portion of the front of the filter receiving section (511). Additionally, a concentration detector (900) may be placed in the receiving space (S). An input button (320), a reset button (330), and a display unit (400) may be placed on the front of the filter receiving section (511). The receiving space (S) of the filter receiving section (511) may be placed below the input button (320), the reset button (330), and the display unit (400). Additionally, the filter receiving section (511) may receive a sensor module (200), a mixing module (600), and a distribution module (700).

[0050] The filter cover (512) can cover the filter receiving portion (511). In other words, the filter cover (512) can be placed in an open portion of the front of the filter receiving portion (511) to close the receiving space (S). Additionally, the filter cover (512) can be detached from the filter receiving portion (511). As the filter cover (512) covers the receiving space (S) of the filter receiving portion (511), the reset button (330) may not be exposed. In other words, the filter cover (512) can cover the reset button (330) to prevent the user from accidentally pressing the reset button (330).

[0051] The waterproof housing can accommodate the battery. Additionally, the waterproof housing is formed with a watertight structure to prevent mixed raw water and purified water from coming into contact with the battery. This waterproof housing can be supported so as to be detachably attached to the filter housing (511). The user can remove the waterproof housing from the filter housing (511) to replace the battery.

[0052] Referring again to FIGS. 1 and FIGS. 2, the mixing module (600) can mix cold source water and hot source water and discharge mixed source water. This mixing module (600) may include a faucet connection part (610), a mixing part (620), and a mixing lever (630).

[0053] The faucet connection part (610) is connected to a cold water faucet and a hot water faucet to receive cold water and hot water. At least a portion of this faucet connection part (610) may be exposed to the outside of the frame (500) to receive cold water and hot water. For example, the faucet connection part (610) may be exposed to the outside by penetrating one or more of the rear and lower surfaces of the frame (500).

[0054] The mixing unit (620) can mix the cold water source and the hot water source flowing in from the faucet connection unit (610). This mixing unit (620) can be controlled by a mixing lever (630) to determine the mixing ratio of the cold water source and the hot water source.

[0055] The mixing lever (630) is exposed outside the frame (500) and can be operated by the user. Through this mixing lever (630), the user can determine the temperature of the purified water to be provided.

[0056] The distribution module (700) is positioned on the integer path and can provide integers to one or more of the fixed head (810) and handheld head (820) described later. This distribution module (700) may include a distribution section (710) and a distribution lever (720).

[0057] The distribution unit (710) can provide an integer to one or more of the fixed head (810) and the handheld head (820) as it is controlled by the distribution lever (720).

[0058] The distribution lever (720) is exposed outside the frame (500) and can be operated by the user. By operating the distribution lever (720), the user can receive an integer from one or more of the fixed head (810) and the handheld head (820).

[0059] The shower head (800) can discharge purified water and provide it to the user. Additionally, the shower head (800) can be supported on a frame (500). This shower head (800) may include a fixed head (810) and a handheld head (820).

[0060] The fixed head (810) can discharge purified water while fixed to the frame (500). For example, the fixed head (810) can be supported by the filter support (510) so as to be positioned above the replacement time calculator (300) and discharge purified water in a downward direction. This fixed head (810) can discharge purified water in the form of multiple streams.

[0061] The handheld head (820) is formed to be mountable on the frame (500) and can discharge purified water to the user. In other words, the handheld head (820) can be mounted on the head mounting part (520). This fixed head (810) can discharge purified water in the form of multiple streams.

[0062] Referring again to FIG. 3, the concentration detector (900) can detect the concentration of foreign substances contained in the mixed raw water. This concentration detector (900) is placed in the receiving space (S), and the user can use the concentration detector (900) by opening the filter cover (512). The user can generate a control signal by operating a terminal or input button (320) by referring to the contamination level detected by this concentration detector (900).

[0063] The battery can supply power to the replacement time calculator (300) and the display unit (400). This battery can be housed in a waterproof housing to prevent exposure to mixed raw water and purified water.

[0064] Hereinafter, the operation and effects of the shower device (1) according to the first embodiment of the present invention will be described.

[0065] The calculation unit (310) of the shower device (1) according to the first embodiment can determine the replacement time of the filter (100) based on the flow rate of the mixed raw water. In addition, since the calculation unit (310) can change the value of the set flow rate by a control signal or compensate for the accumulated measured usage of the mixed raw water, the replacement time of the filter (100) can be determined more accurately even if the contamination level of the mixed raw water supplied in the environment where the shower device (1) is installed is different. For example, if the contamination level of the mixed raw water is high, the replacement time of the filter (100) can be reduced by lowering the value of the set flow rate or compensating the accumulated measured usage of the mixed raw water to be greater than the actual usage. In an environment where the concentration of foreign substances in the mixed raw water is low, the replacement time of the filter (100) can be extended by raising the value of the set flow rate or compensating the accumulated measured usage of the mixed raw water to be less than the actual usage.

[0066] In addition, the amount of mixed raw water used can be reset as the reset button (330) or the filter (100) is removed from or installed on the filter support (510), so the user can easily set the replacement time of the replaced filter (100).

[0067] In addition, the reset button (330) can be covered by the filter cover (512), so that it can be prevented from being accidentally pressed by the user.

[0068] In addition, the user can easily identify information about the actual mixed water being used and easily adjust the temperature of the purified water to be provided by checking the replacement time of the filter (100), the temperature of the mixed raw water, the temperature of the purified water, the accumulated measured usage of the mixed raw water, and the value of the set flow rate through the display unit (400).

[0069] Hereinafter, a shower device (1) according to a second embodiment of the present invention will be described with reference to FIG. 6. In describing the second embodiment of the present invention, there is a difference in that the sensor module (200) may further include a contamination sensor (240) compared to the embodiments described above. The description will focus on this difference, and the same descriptions and reference numerals are taken from the embodiments described above.

[0070] A contamination sensor (240) is placed on the mixed raw water path to measure the contamination level of the mixed raw water. The contamination level of the mixed raw water may be the concentration of foreign substances in the mixed raw water. Additionally, the contamination sensor (240) generates a control signal based on the contamination level of the mixed raw water, and the calculation unit (310) receives the control signal and can change the value of the set flow rate or compensate for the accumulated amount of the mixed raw water used.

[0071] One or more reference pollution levels may be pre-entered in the calculation unit (310). For example, if a first reference pollution level and a second reference pollution level, which is a value higher than the first reference pollution level, are entered into the calculation unit (310) and the pollution level measured by the pollution level sensor (240) is lower than the first reference pollution level, the calculation unit (310) may input a third reference flow rate as a set flow rate or compensate for and measure an amount smaller than the actual accumulated amount of mixed raw water used. As another example, if the pollution level measured by the pollution level sensor (240) is higher than the second reference pollution level, the calculation unit (310) may input a first reference flow rate as a set flow rate or compensate for and measure an amount larger than the actual accumulated amount of mixed raw water used.

[0072] Additionally, the display unit (400) can display the contamination level of the mixed raw water on the screen. Through this display unit (400), the user can determine the contamination level of the mixed raw water.

[0073] The effects and operation of the shower device (1) according to the second embodiment of the present invention will be described below.

[0074] Since the contamination sensor (240) can measure the contamination level of the mixed raw water and generate a control signal based on this, the set flow rate can be changed to suit the environment in which the shower device (1) is installed, or the accumulated measured amount of mixed raw water used can be compensated, even without direct input by the user.

[0075] In addition, since the control signal is generated by a contamination sensor (240) provided in the shower device (1), the shower device (1) can change the replacement time of the filter (100) in real time in response to changes in contamination levels, even if the user does not directly measure the contamination level of the mixed raw water or operate the shower device (1). Therefore, the shower device (1) according to the present embodiment can determine the replacement time of the filter (100) more accurately.

[0076] Although the embodiments of the present invention have been described above as specific embodiments, they are merely examples and the present invention is not limited thereto, but should be interpreted as having the broadest scope in accordance with the technical concept disclosed in this specification. Those skilled in the art may implement patterns of shapes not specified by combining or substituting the disclosed embodiments, and this also does not deviate from the scope of the present invention. Furthermore, those skilled in the art may easily modify or alter the disclosed embodiments based on this specification, and it is evident that such modifications or alterations also fall within the scope of the rights of the present invention. Explanation of the symbols

[0077] 1: Shower unit 100: Filter 200: Sensor module 210: Flow sensor 220: Filter sensor 230: Temperature sensor 240: Contamination sensor 300: Replacement time calculator 310: Calculation unit 320: Input button 330: Reset button 400: Display 500: Frame 510: Filter support 511: Filter receiving section 512: Filter cover 520: Head Mount 600: Mixing Module 610: Water tap connection 620: Mixing part 630: Mixing Lever 700: Distribution Module 710: Distribution section ` 720: Distribution lever 800: Shower head 810: Fixed head 820: Handheld head 900: Concentration detector

Claims

Claim 1 A mixing module comprising a faucet connection part connected to a cold water faucet and a hot water faucet, and a mixing part that mixes cold source water and hot source water flowing in from the faucet connection part; a filter that filters foreign substances from the mixed source water discharged from the mixing module to provide purified water; a sensor module comprising a flow sensor that detects the flow rate of the mixed source water and a contamination sensor that measures the contamination level of the mixed source water; and a replacement time calculator comprising a calculation part that measures the usage of the mixed source water by accumulating it based on the flow rate of the mixed source water detected by the flow sensor, and determines that it is time to replace the filter when the accumulated usage of the mixed source water reaches a set flow rate. A shower device comprising a frame including a filter support member on which the filter is mounted, wherein the frame accommodates the filter, the sensor module, and the replacement time calculator inside, wherein a control signal input to the replacement time calculator is generated based on the contamination level measured by the contamination level sensor, and wherein the calculator sets the usage amount of the mixed raw water that is compensated to be less or more than the actual usage amount of the mixed raw water by means of the control signal, and determines that it is time to replace the filter when the usage amount of the mixed raw water that is compensated to be less or more than the set flow rate. Claim 2 A shower device according to claim 1, wherein the replacement timing calculator has a plurality of reference flow rates and sets one of the plurality of reference flow rates as the set flow rate according to the control signal. Claim 3 delete Claim 4 delete Claim 5 A shower device according to claim 1, wherein the replacement time calculator further includes a reset button for initializing the accumulated measured usage of the mixed raw water. Claim 6 In claim 5, the filter support comprises: a filter receiving portion in which the filter is received; and a filter cover covering the filter receiving portion, and the reset button is covered by the filter cover, a shower device. Claim 7 A shower device according to claim 1, wherein the sensor module further includes a filter sensor capable of detecting that the filter is removed from or installed on the filter support, and the replacement time calculator initializes the accumulated usage of the mixed raw water when the removal or installation of the filter is detected by the filter sensor. Claim 8 A shower device according to claim 1, wherein the filter support comprises a waterproof housing that accommodates a battery that supplies power to the replacement time calculator. Claim 9 A shower device according to claim 1, further comprising a display unit that displays the amount of the mixed raw water measured over a day and the amount of the mixed raw water accumulated since the filter was installed. Claim 10 In claim 9, the shower device, wherein the display portion is positioned above the filter and supported by the filter support portion. Claim 11 A shower device according to claim 1, further comprising a shower head for discharging the above-mentioned water, wherein the shower head comprises one or more of a fixed head supported on the frame above the replacement time calculator and a handheld head mounted on the frame.

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