KR20140070989A

KR20140070989A - Auto-sterilizing bidet and method for controlling the same

Info

Publication number: KR20140070989A
Application number: KR1020120138772A
Authority: KR
Inventors: 장평순; 정인철; 임주영; 김정은
Original assignee: 주식회사 교원
Priority date: 2012-12-03
Filing date: 2012-12-03
Publication date: 2014-06-11

Abstract

In a bidet with a pottery automatic sterilizing function and a method for controlling the same, the bidet with a pottery automatic sterilizing function comprises a sterilizing module, a seating sensor, a control unit, and a water discharging unit. The sterilizing module generates sterilizing water. The seating sensor senses whether a user is seated. The control unit controls the operation of the sterilizing module based on the seating signal of the seating sensor. The water discharging unit is connected with the sterilizing module and includes a spraying nozzle discharging sterilizing water and washing water and a washing unit which washes the spraying nozzle. Also, the control unit operates the sterilizing module after a set time after the seating sensor senses a user is seated.

Description

TECHNICAL FIELD [0001] The present invention relates to a bidet having an automatic pottery disinfecting function,

The present invention relates to a bidet and a control method thereof, and more particularly, to a bidet having an automatic disinfection function and a control method thereof.

Bidets are used in homes and offices as well as hotels, such as hotels, to spray cleaning water to a part of the body after use to facilitate processing after cleaning and to keep a part of the body clean. In particular, in recent years, a variety of injection methods have been developed to improve the convenience of users and the effect of maintaining cleanliness.

However, due to the structure of the bidet used for pottery, the washing water sprayed from the washing water spray nozzle falls back to the pottery after cleaning the body of the user, and the washing water falling to the pottery sporadically bounces to all portions of the pottery. Particularly, as the spraying method of various modes is developed in recent years, there is a high possibility that the phenomenon and range of the washing water is increased. In the case of the washing water falling back to the pottery, it causes contamination of pottery as water contaminated with various bacteria.

To this end, in order to prevent contamination of pottery, a bidet including a sterilizing water injection module for spraying sterilizing water by a pottery has been developed. However, in the bidet including the sterilization water injection module developed up to now, most of the manual injection module requires the user to operate a separate sterilizing water operation button. Therefore, the discomfort of the user is increased, so that the sterilized water injection module is mostly used although it is almost not used.

Further, although a technique has been developed in which sterilization water is sprayed together with cleansing water when the user is seated on the bidet, in this case, there is a problem that the sterilization water is not sprayed after spraying the washing water.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a bidet having an automatic pottery disinfection function that improves the user's convenience with an automatic disinfection function.

Another object of the present invention is to provide a control method of bidet with automatic ceramics sterilization function.

In order to achieve the object of the present invention, a bidet having an automatic pottery disinfecting function according to an embodiment of the present invention includes a sterilizing module, a seating sensor, a controller, and a water outlet. The sterilization module produces sterile water. The seating sensor senses whether or not the user is seated. The control unit controls the operation of the sterilizing module based on a seating signal of the seating sensor. The outflow section is connected to the sterilizing module, and includes a spray nozzle for discharging sterilized water and washing water, and a washing section for washing the spray nozzle. The control unit operates the sterilizing module after a set time has elapsed after the seated sensor detects that the user is seated.

In one embodiment, when the sterilization module is in operation, the sterilization water may be exhaled simultaneously to the spray nozzle and the wash section.

In one embodiment, the injection nozzle may include a washing water outlet portion through which the washing water flows and a sterilizing water outlet portion through which the sterilizing water flows. Between the sterilizing module and the nozzle unit, the washing water discharging portion, the sterilizing water discharging portion, and a branching valve for branching the flow path to the washing portion may be connected.

In one embodiment, the bidet having the automatic pottery sterilization function may further include a human body detection sensor for detecting whether the user is located around the bidet. The control unit may operate the sterilization module after a lapse of a set time when the user is not sensed by the human body detection sensor.

In one embodiment, the seating sensor is formed on a bedpan seat on which a user sits, and the human body sensor may be formed on the injection nozzle.

In one embodiment, the seating sensor may be an infrared sensor (IR sensor).

In the control method of a bidet with an automatic pottery disinfecting function according to an embodiment of the present invention for realizing the object of the present invention, the seating sensor senses whether or not the user seating is finished. The seat sensor detects if there is additional seating during the set time. When the seating is ended and it is determined that there is no additional seating during the set time, the control unit operates the sterilizing module. The sterilization water generated through the sterilization module is discharged to the spray nozzle and the cleaning section of the outflow section.

In one embodiment, the human body detection sensor may additionally sense in detecting the end of the user sitting and in detecting the presence of the additional sitting.

In one embodiment, in the step of operating the sterilizing module, the control unit may generate a sterilizing water by applying a constant voltage to the sterilizing module. After the sterilizing water is generated for the preset time, the controller may apply a reverse voltage to the sterilizing module to scales the sterilizing module, and then cut off the voltage to stop the sterilizing water generation.

In one embodiment, the sterilizing module includes a platinum-plated substrate and a ruthenium-coated substrate facing each other. When the positive voltage is applied, a negative electrode may be applied to the platinum substrate and a positive electrode may be applied to the ruthenium-coated substrate.

In one embodiment, the control unit may not operate the sterilization module when the seating sensor or the human body sensor senses an additional sitting within the set time or access of the user's bidet.

In one embodiment, the sterilizing water may be simultaneously discharged to the injection nozzle and the washing section.

According to the embodiments of the present invention, since the user performs sterilization of the pottery and the spray nozzle during the time when the user does not use the bidet through the seat sensor and the human body sensor, the user does not directly operate the sterilizing module, And the sanitization state is maintained at the time when the user uses the bidet again, thereby improving the comfort.

Particularly, by using both the seating sensor and the human body sensor, it is possible to detect whether the user is seated and whether the user is approaching the bidet, thereby minimizing the possibility of malfunction due to the sensor error. Further, even if the seating of the user is completed, since the sterilization is performed after the lapse of the set time, the user can be positioned near the bidet, thereby preventing inconvenience due to the spraying of sterile water.

In addition, since the sterilizing water is simultaneously discharged through the spray nozzle and the cleaning unit, the sterilizing effect can be improved by simultaneously performing the sterilization of the pottery and the spray nozzle.

Further, by applying the branch valve, the flow paths of the washing water, the washing water discharging portion and the sterilizing water discharging portion are branched, so that the flow path structure inside the bidet can be simplified.

In addition, the control unit can generate or stop the sterilizing water by simply changing the polarity applied to the sterilizing module, so that generation of the sterilizing water can be easily controlled.

1 is a block diagram showing a bidet having an automatic pottery disinfection function according to an embodiment of the present invention.
Fig. 2 is a perspective view showing a bidet having the automatic potter's sterilizing function of Fig. 1 mounted on a pottery; Fig.
FIG. 3 is a perspective view showing a sterilization module mounted inside the bidet having the automatic pottery sterilization function of FIG. 2;
4A and 4B are flowcharts showing a control method of a bidet having an automatic pottery disinfecting function of FIG.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing. The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the term "comprises" or "comprising ", etc. is intended to specify that there is a stated feature, figure, step, operation, component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing a bidet having an automatic pottery disinfection function according to an embodiment of the present invention. Fig. 2 is a perspective view showing a bidet having the automatic potter's sterilizing function of Fig. 1 mounted on a pottery; Fig.

1 and 2, a bidet 100 having an automatic pottery disinfecting function according to the present embodiment includes a body 110, a bedpan seat 120, and a cover 130. The body 110 is fixed to the pottery 200 at the rear end of the pottery 200. The bedpan seat 120 is rotatably fixed to the body 110 and is seated by the user. The cover 130 is rotatably fixed to the body 110 and covers the upper portion of the toilet seat 120.

2, the injection nozzle 111 is fixed to the center end of the body 110 and the injection nozzle 111 injects the sterilizing water 112 toward the pottery 200. However, the fixing position of the injection nozzle 111 can be variously modified. However, it is preferable that the sterilizing water 112 injected toward the pottery 200 is sprayed in various directions so as to sterilize all parts of the pottery.

A body detecting sensor 121 is formed at the center of the body 110 and the body detecting sensor 121 senses whether the user is located in the vicinity of the bidet 100. That is, the human body detection sensor 121 is formed on the injection nozzle 111. In this case, the human body detection sensor 121 senses the presence of the user when the user is located around the bedpan seat 120. Therefore, when the user moves away from the bidet 100 after the user removes the toilet seat 120 from the toilet seat 120, the user senses that the user is not around. The human body detection signal of the human body detection sensor 121 is transmitted to a controller 80 to be described later.

A seat sensor 122 is formed on the bedpan seat 120, and a plurality of seating sensors 122 may be formed at predetermined intervals in the bedpan seat 120 as shown in FIG. Alternatively, although not shown, one seat may be formed at a predetermined internal position of the toilet seat 120 to sense whether the user is seated. The seating sensor 122 may include various sensors for detecting whether a user is seated, for example, a gravity sensor such as an infrared (IR) sensor, a load cell, or the like.

Inside the body 110, there are provided a pressure reducing valve 20 for controlling the pressure of the water supplied from the water supply 10, an instantaneous hot water module for heating the water supplied from the pressure reducing valve 20, A sterilization module 40 connected to the instantaneous hot water module 30 to generate sterilized water, a branch valve 50 connected to the sterilization module 40 to branch the channel, And a nozzle unit 70 for spraying the cleaning water or sterilizing water to the outside. Of course, the components may be disposed on the outside of the body 110 or inside the toilet seat 120.

The sterilization module 40 is controlled in operation by the control unit 80, and generates sterilizing water or ceases generation of sterilizing water. In this case, the operation of the specific sterilization module 40 will be described later with reference to Fig.

On the other hand, in the present embodiment, the washing water supplied for cleaning (or bidet) of the local part through the washing water supply passage 51, which is an arrow indicated by the solid line in FIG. 1, is heated through the instantaneous hot water module 30 Is supplied to the washing water outlet portion (71) of the nozzle unit (70) through the branch valve (50) without passing through the sterilization module (40).

As described above, when the washing water is supplied from the instantaneous hot water module 30, the branch valve 50 supplies the washing water to the washing water outlet portion 71 through the washing water supply passage 51 do.

On the other hand, when sterilization is required for the pottery 200 and the spray nozzle 111, the washing water having passed through the water heater module 30 is generated as sterilized water through the sterilization module 40. Thereafter, the branch valve 50 sends out the sterilizing water through the sterilizing water supply passage 52 indicated by the dotted line in Fig. 1, and supplies the sterilizing water to the sterilizing water discharging portion 72 and the cleaning portion 73 . Thus, the pottery 200 is sterilized through the sterilizing water discharge unit 72, and the spray nozzle 111 is sterilized through the cleaning unit 73.

Specifically, the nozzle unit 70 includes the spray nozzle 111 and the cleaning unit 73, and the spray nozzle 111 includes a washing water outlet part 71 through which the washing water flows, And a sterilizing water-receiving portion 72. Of course, the washing water and the sterilizing water can be dispensed through one water outlet. In this case, the washing water outlet 71 and the sterilizing water receiver 72 are integrated into one. However, the cleansing water passage 51 through which the washing water flows and the sterilizing water passage 52 through which the sterilizing water passes can be formed to be distinguished from each other as described above.

Therefore, the washing water having passed through the branch valve 50 is injected into the injection nozzle 111 through the washing water outlet 71, and the sterilizing water that has passed through the branch valve 50 passes through the sterilizing water outlet And is injected into the injection nozzle 111 through the nozzle 72. In this case, sterilizing water passed through the branch valve 50 is supplied to the washing unit 73 through a separate flow path, and the sterilizing water supplied to the washing unit 73 is supplied to the outside through the injection nozzle 111 And is provided in the direction of the injection nozzle 111 so as to perform sterilizing action on the injection nozzle 111.

In this embodiment, the sterilizing water is simultaneously discharged to the washing section 73 and the spray nozzle 111, and sterilization of the spray nozzle 111 by the sterilizing water discharged from the washing section 73, Sterilization of the pottery 200 by the sterilizing water exiting from the nozzle 111 can be performed simultaneously. Thus, the sterilization effect and sterilization efficiency of the spray nozzle 111 can be improved.

In order to improve the sterilizing power of the pottery 200 through the sterilizing water, a water pump 61 is positioned between the flow path of the branch valve 50 and the sterilizing water receiver 72, It is possible to increase the pressure of the sterilizing water injected to the injection nozzle 111 through the nozzle 72. Of course, the branch valve 50 may be provided with a constant pressure from the separate air pump 60 to branch off the sterilizing water or the washing water to the respective flow paths.

The human body detection sensor 121 senses whether the user is away from the bidet 100 by a predetermined distance or more and transmits a detection signal to the controller 80. The seating sensor 122 senses whether the user is seated on the bedpan seat 120 and transmits the sensed seating signal to the controller 80. [

The control unit 80 is connected to the sterilizing module 40. When the user is seated from the human body sensor 121 and the seating sensor 122 and the user is away from the bidet 100 by a predetermined distance or more The sterilization module 40 is operated after a predetermined time has elapsed. In this case, operating the sterilization module 40 after the control unit 80 terminates the seating of the user and the user's separation signal even after a predetermined time has elapsed, There is a possibility of staying in the vicinity or sitting back in the bidet 100. In this case, if the sterilization water is sprayed, the user may be unexpectedly inconvenienced. Accordingly, when it is certain that the user is away from the bidet 100 by waiting until a predetermined time has elapsed after the user is seated and has received a signal that the user has been away from the bidet by a predetermined distance or more, It is possible to improve convenience of the apparatus. In this case, the predetermined time may be selected in the range of, for example, 5 seconds to 30 seconds, and more specifically, about 10 seconds.

FIG. 3 is a perspective view showing a sterilization module mounted inside the bidet having the automatic pottery sterilization function of FIG. 2;

3, the sterilizing module 140 includes a body 141, a plating substrate 142 and a coating substrate 143 disposed to face each other in the body 141, An inlet 145 formed at the other end of the body 141, and first and second terminals 146 and 147 formed in the body 141. In FIG. 3, detailed internal and external structures of the sterilization module 140 are omitted, and the sterilization module 140 is mainly shown as main components, and may be modified into various shapes other than those shown in FIG.

The plating substrate 142 may be a platinum plated substrate plated with Pt, and the coating substrate 143 may be a ruthenium-coated substrate coated with ruthenium (Ru). The first terminal 146 is connected to the ruthenium-coated substrate 143 and the second terminal 147 is connected to the platinum-coated substrate 142.

When the sterilizing module 140 is operated by the control unit 80, the positive electrode (+) is applied to the first terminal 146 so that the ruthenium-coated substrate 143 is formed as an anode, The negative electrode (-) is applied to the platinum substrate 147, and the platinum plating substrate 142 is formed as a negative electrode, thereby generating sterilized water. This is defined as applying a constant voltage to the sterilization module 140. When the constant voltage is applied in this way, the water received through the inlet 145 is transformed into the sterilizing water and is discharged to the outlet 144.

When the operation of the sterilizing module 140 is stopped by the control unit 80, the cathode (-) is applied to the first terminal 146 so that the ruthenium-coated substrate 143 is formed as a cathode, The second terminal 147 applies a reverse voltage to the sterilizing module 140 so that the anode (+) is applied and the platinum plating substrate 142 is formed as an anode. When a reverse voltage is applied to the sterilization module 140 as described above, impurities or contaminants generated in the ruthenium-coated substrate 143 or the platinum-coated substrate 142 are scaled by generating sterilized water in the sterilization module 140 (not shown). Thus, when generating sterilized water through the sterilization module 140 in the future, the sterilization water generating efficiency can be maintained. When the scaling is completed, the voltage applied to the sterilization module 140 is cut off, and the operation of the sterilization module 140 is stopped to stop the generation of sterilization water.

As described above, by controlling the operation of the sterilization module 140 through application of the constant voltage / reverse voltage, it is possible to prevent the scale of the platinum plating substrate 142 and improve the durability of the sterilization module 140 have.

Meanwhile, it is preferable that the voltage applied to the sterilization module 140 is a maximum DC 12V and the current is maintained in a range of about 350mA to 380mA.

4A and 4B are flowcharts showing a control method of a bidet having an automatic pottery disinfecting function of FIG.

Referring to FIGS. 4A and 4B, the control method of the bidet 100 having the automatic pottery disinfection function according to the present embodiment can be operated in the automatic pottery disinfection mode and the passive pottery disinfection mode. In the automatic pottery disinfection mode, the human body detection sensor 121 and the seating sensor 122 automatically detect whether the user is separated and whether the user is seated, as described in FIGS. 1 to 3, In the pottery disinfection mode, the pottery is sterilized according to the user's choice.

Therefore, first, it is determined whether or not the automatic pottery disinfection mode is selected according to the user's selection (step S10). In this case, if the operation is performed in the automatic pottery disinfection mode, the controller 80 determines whether the user completes the use of the toilet, based on the signals from the human body sensor 121 and the seating sensor 122 Step S20). When the user senses that the user is away from the periphery of the bidet 100 and the seating sensor 122 senses that the user has disappeared from the bedpan seat 120, .

Thereafter, if it is not judged that the user has completed the use of the toilet, it is fed back to judge whether it is the automatic pottery sterilization mode.

On the other hand, if it is determined that the user has completed the use of the sterilization module 40, the controller 80 does not immediately operate the sterilization module 40 and remains in a standby state (step S30). Thus, if it is determined that the user does not stay in the bidet 100 or stay in the vicinity of the bidet 100 during the set time (step S40), the controller 80 drives the sterilizing module 40 Step S50). This is because, as described above, since the user is likely to use the bidet 100 again immediately after use, and can stay around the bidet 100 as needed, the user can avoid unexpected discomfort due to the spraying of sterile water This is to prevent things from happening in advance. In addition, the set time may be selected in the range of, for example, 5 seconds to 30 seconds, and more specifically, about 10 seconds.

The control unit 80 drives the sterilizing module 40 to apply a constant voltage to the sterilizing module 40. Accordingly, the negative electrode (-) is formed on the platinum- (+) Is formed on the anode 143 to generate sterilized water.

Thereafter, the human body sensor 121 and the seating sensor 122 continuously detect whether the user is seated on the toilet seat 120 or located around the bidet 100, It is determined whether the current applied to the sterilizing module 40 is in the range of about 350 mA to 380 mA (step S70). Thus, when the user is not sensed and the current also maintains the above range, the controller 80 maintains the operation of the sterilization module 40, and consequently sterilization water generated in the sterilization module 40 is supplied to the branch valve (50) and is sprayed to the injection nozzle (111) and the cleaning part (73). Accordingly, the pottery 200 is sterilized through the spray nozzle 111, and the spray nozzle 111 is sterilized through the cleaning unit 73 (step S80).

Thereafter, the control unit 80 maintains the operation of the sterilizing module 40 until the time required for sterilizing the pottery 200 and the injection nozzle 111 has elapsed, (Step S90), the operation of the sterilizing module 40 is stopped (step S100). In this case, the set time required for sterilization may be, for example, about 1 minute or less.

The controller 80 scales the sterilizing module 40 by applying a reverse voltage, stops the operation of the sterilizing module 40, and stops the operation of the sterilizing module 40. That is, an anode (+) is formed on the platinum-plated substrate 142 and a cathode (-) is formed on the ruthenium-coated substrate 143. After the scaling of the sterilization module 40 is performed, (Step S100). In this case, the reverse voltage is applied for scaling of the sterilization module 40, and may be applied for about 5 seconds, for example. Thereafter, the voltage applied to the sterilization module 40 is cut off, and the operation of the sterilization module 40 is stopped.

When the user senses the approach or seating of the human body sensor 121 or the seating sensor 122 at any time during the operation of the sterilization module 40, the signal is transmitted to the controller 80, The control unit 80 applies a reverse voltage to the sterilizing module 40 and scales it, and finally stops the operation by stopping the voltage (step S110).

During the operation of the sterilization module 40, the sterilization module 40 is stopped by user's approach or sitting detection of the human body sensor 121 or the seating sensor 122, The control unit 80 applies a constant voltage to the sterilization module 40 after the user's access or seated seat is exhausted so that the sterilized water is sprayed for a set time necessary for sterilization Thereby controlling the sterilization module 40.

If the user inputs a driving signal of the sterilizing module 40, the control unit 80 applies a constant voltage to the sterilizing module 40 so that the sterilizing module 40 is operated in the passive ceramic sterilization mode (step S60) (Step S50), and the subsequent steps are the same as the above-described steps S70 to S110.

According to the embodiments of the present invention as described above, since the user performs disinfection of the pottery and the spray nozzle during the time when the user does not use the bidet through the seating sensor and the human body sensor, And the sanitization state is maintained at the time when the user uses the bidet again, thereby improving the comfort.

The bidet with automatic sanitizing function according to the present invention and its control method have industrial applicability that can be used at home, office or lodging.

100: bidet 200: pottery
40: sterilization module 50: branch valve
111: Nozzle part 71: Cleaning water outlet part
72: washing water outlet portion 73: sterilization water outlet portion
80: control unit 121: human body detection sensor
122:

Claims

A sterilization module for generating sterile water;
A seating sensor for detecting whether or not the user is seated;
A control unit for controlling the operation of the sterilizing module based on a seating signal of the seating sensor; And
And an outflow portion connected to the sterilizing module, the outflow portion including a spray nozzle for spraying sterilized water and washing water, and a washing portion for washing the spray nozzle,
Wherein the control unit operates the sterilizing module after an elapse of a set time after the user seated the seating of the user by the seating sensor.

The bidet according to claim 1, wherein, when the sterilizing module is operated, the sterilizing water is simultaneously discharged to the spray nozzle and the washing section.

3. The washing machine according to claim 2, wherein the spray nozzle includes a washing water outlet portion through which washing water flows out and a sterilizing water outlet portion through which sterilizing water flows out,
Wherein a bidet valve is provided between the sterilizing module and the nozzle unit for branching the flow path between the washing water discharging part, the sterilizing water discharging part and the washing part.

The apparatus of claim 1, further comprising a human body sensor for detecting whether the user is located in the vicinity of the bidet,
Wherein the control unit operates the sterilizing module after a lapse of a set time when the user is not sensed by the human body detection sensor.

The bidet according to claim 4, wherein the seat sensor is formed on a bed sheet on which a user sits, and the human body sensor is formed on the spray nozzle.

The bidet according to claim 1, wherein the seating sensor is one of an infrared sensor (IR sensor) and a gravity sensor.

Detecting the end of user seating in the seating sensor;
Sensing whether there is additional seating during the set time in the seating sensor;
Operating the sterilizing module if the control unit determines that the seating is terminated and there is no additional seating during the set time; And
And sterilizing water generated through the sterilizing module is discharged to an injection nozzle and a washing section of the outlet portion.

8. The method of claim 7, further comprising: sensing whether the user seating is terminated,
And a human body detection sensor is additionally sensed by the human body detection sensor.

[9] The method of claim 8, wherein, in the step of operating the sterilizing module, the controller generates a sterilizing water by applying a constant voltage to the sterilizing module,
Wherein the control unit applies a reverse voltage to the sterilizing module to scald the sterilizing module and then stops the generation of the sterilizing water by shutting off the voltage after the sterilizing water is generated during the set time. Control method.

[12] The method of claim 9, wherein the sterilizing module includes a platinum-plated substrate and a ruthenium-coated substrate facing each other, wherein a cathode is applied to the platinum substrate and an anode is applied to the ruthenium- Control method of bidet with automatic ceramics sterilization function.

The method of claim 8, wherein the seating sensor is formed on a bed sheet on which a user is seated, and the human body sensor is formed on the injection nozzle.

The automatic sanitizing apparatus according to claim 7, wherein the control unit does not operate the sterilizing module when the seating sensor or the human body sensor senses an approaching seat or a user's bidet within a set time. The method comprising:

8. The control method for a bidet according to claim 7, wherein the sterilizing water is simultaneously discharged to the spray nozzle and the washing unit.