KR101876906B1 - A Human Body Detection Sensor Used In An Automatic Flushing Apparatus Of Urinal - Google Patents

Abstract

A human body detecting sensor of a urinal automatic washing apparatus for detecting a human approach and performing a washing operation is disclosed. The human body detecting sensor of the urinal automatic washing apparatus of the present invention comprises a control circuit case in which a control circuit is accommodated; A sensor case which does not transmit infrared rays connected to the control circuit case; A human body detection PCB board accommodated in the sensor case; At least one opening formed in the front surface of the sensor case; An infrared ray device disposed at a corresponding position of the opening of the sensor case and fixed to the human body detection PCB substrate; And a hard glass through which infrared light is coupled and fixed to the opening. According to the present invention, durability against scratching is improved by using hard glass in the window of the infrared ray reflection type human body sensor part.

Description

[0001] The present invention relates to a human body detecting sensor used in an automatic flushing apparatus for urine,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a human body detecting sensor of a urinal automatic washing apparatus, more particularly, to a human body detecting sensor of a urinal automatic washing apparatus installed on an upper part of a bowl of a urinal, .

The automatic cleaning device with built-in urinals can be classified into infrared, ultrasonic, and microwave sensor type depending on the type of sensor. The infrared sensor type is most widely used because of low power consumption, low cost, and easy handling.

2. Description of the Related Art In general, an infrared sensor system is a structure in which a light emitting element emits infrared light to a human body to be detected and a reflected light is detected by a light receiving element.

The infrared light emitting element and the infrared light receiving element are arranged at a predetermined interval on a single human body detection printed circuit board (PCB) and positioned in the human body approach direction.

The urinal having the automatic sensor device has a space portion at the uppermost portion and a sensor window having the human body detection PCB protrudes to the front portion.

A sensor built-in circuit, a solenoid valve, a control circuit, a battery case, and an exponent are installed in the uppermost space portion of the urinal, and a spreader is installed in a hole communicated to the lower portion.

The water supply is supplied to the solenoid valve through the water supply hose and the exponent from the wall, and it is opened or closed by the signal of the control circuit depending on whether or not the human body of the sensor is detected. The spreader connected to the solenoid valve injects water evenly on the wall of the urinal.

The method of supplying water to the spreader of the automatic cleaning device with built-in urinal is provided in the way of supplying water from the space portion of the upper part of the urinal and the method of spraying installed on the bowl surface (wall surface)

However, the conventional automatic urinal incontinence sensor device has the following problems.

First, it is difficult to install a sensor built-in control circuit in a conventional automatic urinal incineration sensor device. In the infrared sensor type among the automatic urinal internal sensor devices, the sensor window must protrude outside the user's direction. Accordingly, the conventional art has a structure in which an opening is formed by cutting the front surface of the upper space part of the urinal, and the human body detecting sensor is fixed using the fixed frame.

However, such a method causes incision work, resulting cracks, and glaze molding, resulting in deterioration of the productivity of the sanitary ware and, in the case of production errors, causes deterioration of appearance quality due to unevenness due to surface defects , Assembly work is also difficult. In addition, there is a problem that the detection of a small child is difficult.

In addition, conventional automatic urinal sensor devices are difficult to install parts. Conventional automatic flushing apparatus with built-in urinal is composed of parts such as human body detection sensor and fixed frame, battery case, solenoid valve, exponent, water supply hose, spreader and the like. In order to install such a large number of parts in the upper space portion of the urinal, a method of mounting the component fixing bracket to the urinal and mounting the components thereon is mainly adopted. Brackets are usually screwed into a hole formed in a urinal by inserting a knife or other component. Since the coupling between the spreader and the solenoid valve generates a separating force due to the pressure at the time of water supply and there is a risk of water leakage, it is possible to use a union nut type of pipe connection or to support the solenoid valve through the bracket, And the like are used.

However, it is very difficult to fix and fasten such a large number of parts. In fact, in Korea, the self-cleaning device with built-in urinals is sold only by assembled and assembled by dedicated workers in the assembly line separately provided by the manufacturer of sanitary ware. At the construction site, the urinal constructor is only working to connect the water supply and drainage and fix the urinal.

In order to solve the above-mentioned problems, Japanese Patent Laid-Open No. 2007-321543 discloses a spreader structure that is installed on the front bowl surface of the urinal and receives water from the rear to be sprayed on the bowl surface (wall surface) have.

1 shows a structure of a "urinal automatic washing apparatus" of Japanese Laid-Open Patent Application No. 2007-321543, and Fig. 2 is a sectional view of a spreader.

1 and 2, a piping case 12 is formed as a urinal of a pottery. Inside the piping case 12, piping such as a water supply pipe and a drain pipe is accommodated. The urinal is mounted on the wall, and a spreader 22 is mounted in the space in the bowl 16 of the urinal. The spreader 22 is provided with a spray hole 24 at the lower portion thereof so that the washing water is radially sprayed from the spray hole 24 to clean the inner surface of the bowl 16 and discharge into the drain hole.

The spreader 22 has a circular shape and is composed of a head portion 28 on the front side and a tubular portion 30 extending to the rear of the head portion 28. The tubular portion 30 is disposed on the back wall 31 of the urinal 10 The head portion 28 is fixed in contact with the rear wall 31 while being inserted into the hole 32. [

An infrared reflection type human body detection sensor 34 having a light emitting portion 34a and a light receiving portion 34b is provided on the front surface of the head portion 28. [ The human body sensor 34 is a translucent sensor case 36 made of a resin material and is wrapped with a rubber-made O-ring 38 on the outer side together with the head of the spreader 22.

This technique is useful as a means for solving the problems related to the above-described sensor case installation. However, since the space between the bowl 16 and the building wall is narrow, the sensor portion and the control portion are separated from each other due to insufficient space for installing the control portion, and since the distance is long and the length of the wiring becomes long and the low voltage signal must be amplified and processed, ≪ / RTI >

In addition, the wiring must be connected to the control circuit by means of a connector, which requires a costly waterproof connector, resulting in a considerable cost increase.

In addition, the sensor case 36 is a resin material through which infrared rays are transmitted, and is provided on the front bowl surface of the urinal to protect the sensor element. When the sensor case 36 is in contact with a worn- So that the sensor case made of a resin material is prone to scratches due to a cleaning tool such as a general wringer used for cleaning. When a scratch is generated, the infrared ray emitted from the light emitting element is diffused, causing the infrared ray to flow toward the light receiving element, so that even if there is no human body in front, a detection signal is received and malfunctions.

Japanese Patent Laid-Open No. 2001-40742 Korean Utility Model Registration No. 20-0416398 Japanese Laid-Open Patent Application No. 2007-321543 Japanese Patent Laid-Open No. 2010-37869 Korean Patent Application No. 10-2015-0190862

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a human body detecting sensor of an automatic cleaning device with a urinal, which improves durability against scratches by using a hard glass, will be.

In addition, a display lamp at the time of human body detection is placed on the side of a light emitting device while making a small LED such as a SMD (Surface Mount Device) LED, and an automatic cleaning device with a urinal The human body detection sensor of the present invention. The use of small LEDs instead of display lamps can save cost.

In addition, an automatic cleaning device is incorporated in the upper space of the urinal, and a spreader to which the human body detection sensor is coupled is installed as an upper fastening type with a hole drilled down in the space for installing the automatic cleaning device. And a sensor unit of a self-contained urinal automatic washing apparatus that is sprayed on the bowl surface to wash the wall surface.

According to an aspect of the present invention, there is provided an apparatus for detecting a human body of an automatic urinal cleaner comprising: a control circuit case accommodating a control circuit; A sensor case which does not transmit infrared rays connected to the control circuit case; A human body detection PCB board accommodated in the sensor case; At least one opening formed in the front surface of the sensor case; An infrared ray device disposed at a corresponding position of the opening of the sensor case and fixed to the human body detection PCB substrate; And a hard glass bonded to the opening and permeable to infrared light.

In the present invention, the control circuit case may be located in the upper space of the urinal, and the sensor case may be positioned above the bowl of the urinal through the hole bored in the upper space of the urinal.

In the present invention, the infrared device is composed of a light emitting element and a light receiving element, a display lamp is further disposed on the human body sensing PCB substrate, three openings are formed on the front surface of the sensor case, The infrared ray device and the display lamp may be disposed on the human body detection PCB substrate in the position.

In the present invention, the infrared device is composed of a light emitting element and a light receiving element, and a small LED display lamp is further disposed on one side of the human body sensing PCB substrate adjacent to the infrared element. And an infrared ray device is disposed on the human body sensing PCB substrate at a position corresponding to each of the openings and the light of the small LED display lamp can be exposed to the outside through the infrared ray device on one side thereof .

In the present invention, the hard glass may be recessed lower than the surface of the sensor case.

In the present invention, the sensor may further include a sensor guide having a guide groove at a corresponding position of the infrared device, in order to restrict unnecessary interference of the infrared device signal and protect it from an external impact.

In the present invention, the human body detecting sensor is coupled to a spreader, and the spreader is vertically penetrated to form a sensor receiving groove for receiving the sensor case. The sensor receiving groove is provided on the front side as a direction toward the user, The sensor case of the human body detection sensor can be fitted from top to bottom in the sensor receiving groove of the spreader.

According to the present invention having the above-described structure, the durability against scratching is improved by using the hard glass in the window of the human reflection sensor part of the infrared reflection type.

In addition, the display lamp at the time of human body detection is placed on the side surface of the light emitting element while making a small LED such as a SMD (Surface Mount Device) LED so that the light of the small LED can be exposed to the outside through the light emitting element, The cost of the sensor unit can be minimized.

In addition, when the spreader is tightened with a nut on the urinal, the remaining components including the human body sensor can be mounted on the spreader with one touch to complete the installation, which makes the installation work very easy, So that the sanitary ware factory does not incur the assembly cost, so that it is possible to have price competitiveness.

In addition, there is no sensor window in the front part of the urinal, a sensor part is installed in the bowl, and the appearance is good. In the sanitary ware manufacturing process, the incision work for forming the opening is eliminated, thereby reducing the cost.

1 is a structure of a "urinal automatic washing apparatus ", Japanese Unexamined Patent Publication No. 2007-321543.
2 is a cross-sectional view of the spreader of Fig. 1 "Automatic urinal cleaner".
3 is a front view and a side view showing a fastener structure of a spreader of an automatic urinal incinerator equipped in a urinal according to an embodiment of the present invention.
4 is a perspective view illustrating an automatic cleaning device with a urinal according to an embodiment of the present invention.
5 is a cross-sectional view illustrating a coupling structure of a spreader and a human body detection sensor according to an embodiment of the present invention.
6 is a cross-sectional view illustrating a human body detection sensor according to a first embodiment of the present invention.
FIG. 7 is a perspective view of a human body detection sensor according to a first embodiment of the present invention,
8 is a perspective view of a human body detection sensor according to a first embodiment of the present invention.
FIG. 9 is a sectional view showing a human body detection sensor according to a second embodiment of the present invention.
10 is a perspective view of a human body detection sensor according to a second embodiment of the present invention.
11 is a partial cutaway perspective view of a human body detection sensor according to a second embodiment of the present invention.
12 is an exploded perspective view of a human body detection sensor according to a second embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an automatic urinal incineration apparatus according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

3 is a front view and a side view showing a fastener structure of a spreader of an automatic urinal incinerator equipped in a urinal according to an embodiment of the present invention.

3, a self-cleaning device is installed in the upper space 10 of the urinal 1. The spreader 100 is an upper fastening type and penetrates a hole punctured downward in the upper space 10 of the urinal, (100) and then fastened with a nut.

The spreader 100 receives water from the upper part and blows the water on the wall surface of the urinal bowl surface to clean the spreader.

4 is a perspective view illustrating an automatic cleaning device with a urinal according to an embodiment of the present invention.

Referring to FIG. 4, the automatic urinal incinerator of the present invention includes a spreader 100, a human body sensor 200, a solenoid valve 300, and a battery case 400 having a battery.

The spreader 100 is formed with a body 101 having a sensor receiving groove 109 for receiving the infrared sensor case 207 so that the sensor receiving recess 109 is installed on the front side do. A water supply connection pipe 105 extends upward and downward from the bowl surface side of the sensor receiving groove 109. A spray nozzle part for spraying washing water to the wall surface of the urinal is provided below the water supply connection pipe 105 103 are formed. An engagement groove 115 is formed in a direction opposite to the nozzle of the injection nozzle unit 103 to receive the protrusion 245 (see FIG. 5) of the infrared sensor case 207. A concave groove 113 is formed at the upper end of the water connection pipe 105 so that the spreader 100 and the solenoid valve 300 can be tightened with one touch. A threaded groove is formed at the upper outer circumferential surface of the sensor receiving groove 109 of the body 101 and a fixing rod 111 is formed at an intermediate portion of the sensor receiving groove 109. The fixing nut 111 The spreader body 101 can be installed in the perforated hole of the urinal upper space.

The human body detection sensor 200 includes a control circuit case 203 in which a printed circuit board 201 is received in the front face and an infrared sensor 205 extending from a lower portion of the control circuit case 203, And a sensor case 207 in which infrared rays are not transmitted. The sensor case 207 has a width enough to pass through the sensor receiving groove 109 of the spreader 100. A T-shaped blade 209 is formed on a side surface of the control circuit case 203 so that the C-shaped blade 401 of the battery case 400 can be coupled to the T-shaped blade 209.

The solenoid valve unit 300 includes a body 301 having a water supply passage, a solenoid 303 for controlling water supply, a water supply port 305, and a water outlet 307. The solenoid valve unit 300 may include a cleaning liquid connection pipe 325 communicating with the water jetting spout 307. The cleaning fluid connection pipe 325 may be separately connected when adding a cleaning agent or a fragrance to the urinal.

The battery case 400 is formed with a cantilever 401 having a left / right cross section along the wall surface in the longitudinal direction.

Hereinafter, the assembling of the automatic cleaning device with the urinal according to one embodiment of the present invention will be described.

First, as shown in FIG. 5, the spreader 100 is inserted from below and fixed with a fixing nut 109 from above with the packing in a spreader mounting hole drilled downward in the upper space of the urinal.

Next, the body sensor unit 200 is coupled to the spreader 100,

5 is a cross-sectional view showing a coupling structure of a spreader 100 and a human body detection sensor 200 according to an embodiment of the present invention.

5, the sensor case 207 of the human body sensor 200 is inserted into the sensor receiving groove 109 of the spreader 100 from top to bottom. At this time, the sensor case protrusion 245 at the end of the sensor case is fitted into the catching groove 115 of the spreader. The reference numeral '117' denotes a packing.

4, the solenoid valve unit 300 is coupled to the spreader 100, and the battery case 400 is connected to the outer side of the human body sensor 200, Or the right T-shaped blade 209 to be fixed. The urinal built-in automatic washing device is characterized by periodic replacement of the battery. Therefore, the battery case needs to be easily attached and detached, and a particularly strong fastening force is not required.

In connection of the water supply, one side of the water supply hose integrated with the elbow and the exponential transfer is fastened to the water supply port on the wall, and the other side is fastened to the water supply 305 of the solenoid valve.

Hereinafter, the human body detection sensor 200 of the present invention will be described in detail. The human body detection sensor 200 improves durability by using a window of a sensor as a hard glass through which infrared rays are transmitted.

FIG. 6 is a sectional view showing a human body detection sensor 200 according to a first embodiment of the present invention, FIG. 7 is a perspective view of a sensor structure, and FIG. 8 is a partially cutaway perspective view.

6 to 8, the human body detection sensor device 200 includes a control circuit case 203 in which a control circuit is accommodated and a sensor case 207 extending from a lower portion of the control circuit case 203 . The control circuit case 203 is located in the upper space 10 of the urinal 1 and the sensor case 207 penetrates through the lower perforated hole in the upper space 10 of the urinal, It is located at the top of the bowl.

The sensor case 207 has a semi-circular shape for receiving the human-sensed PCB substrate 202, and does not transmit infrared rays, and three openings 210 are formed in the front face. The hard glass 211 is embedded in the opening 210 at a position corresponding to each of the hard glass 211 and the sensor case 207. The hard glass 211 is recessed lower than the surface of the sensor case 207, The cleaning tools of the

Infrared devices 205a and 205b and a display lamp 206a are disposed on the human body sensing PCB substrate 202 at positions corresponding to the opening 210 and the hard glass 211. [ The infrared ray device is composed of a light emitting element 205a and a light receiving element 205b and the display lamp 206a has a function of allowing the user to recognize the detection signal when detecting the human body by the infrared ray elements 205a and 205b .

The infrared ray devices 205a and 205b and the display lamp 206a are fixed to a sensor guide 215 having guide grooves H1, H2 and H3 (see FIG. 12) And the signal from the indicator lamp 206a, and is protected from external impacts.

When the user's body approaches the human body detection PCB substrate 202, the signal of the light emitting element 205a is received by the light receiving element 205b, and the display lamp 206a is lighted or blinks.

FIG. 9 is a sectional view showing a human body detection sensor 200 according to a second embodiment of the present invention, FIG. 10 is a perspective view of a sensor structure, FIG. 11 is a partially cutaway perspective view, and FIG. 12 is an exploded perspective view.

The construction of the hard glass 211 corresponding to the display lamp 206a of the first embodiment raises an additional cost, so that it is economical to simplify it.

9 to 12, the human body detection sensor device 200 includes a control circuit case 203 in which a control circuit is accommodated and a sensor case 207 extending from a lower portion of the control circuit case 203 .

The sensor case 207 has a semicircular shape for receiving the human body detection PCB substrate 202, and does not transmit infrared rays, and two openings 210 are formed on the front face. The hard glass 211 is fixedly coupled to the opening 210 through the hard glass 211 to transmit infrared rays. The hard glass 211 is recessed lower than the surface of the sensor case 207, It is not touching.

Infrared sensors 205a and 205b are disposed on the sensor PCB substrate 202 at positions corresponding to the opening 210 and the hard glass 211. A small LED display lamp (206b). The infrared device is composed of a light emitting element 205a and a light receiving element 205b and when the small LED display lamp 206b detects a human body by the infrared ray elements 205a and 205b, .

When the human body of the user approaches the human body detection PCB substrate 202, the signal of the light emitting element 205a is received by the light receiving element 205b, and the small display lamp 206b emits or flashes. At this time, the light of the small display lamp 206b is guided through the infrared ray devices 205a and 205b on one side thereof, and is exposed to the outside so that the user can recognize the light. As compared with the first embodiment, the sensor case 207 is provided with two openings 210 and a corresponding hard glass 211 on the front surface thereof to simplify the design and save costs have.

12, the infrared ray devices 205a and 205b are fixed to a sensor guide 215 having guide grooves H1, H2 and H3 (see FIG. 12), and the position of the infrared ray sensors 205a and 205b Limit unnecessary interference, and protect the infrared device from external impact.

The upper end of the sensor guide 205 is extended and has a detent 215a at an end of the sensor guide 205. The sensor guide 205 is disposed above the human body sensing PCB substrate 202, Can be easily and stably housed in the sensor case 207 by the detent jaws 215a of the sensor guide 205 when the sensor case 207 is received in the sensor case 207. [

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims. Are also included within the scope of the present invention.

1: urinal 10: upper space
12: piping case 16: bowl
22: spreader 24:
28: head part 30: tubular part
31: rear wall 34: human body detection sensor
34a: light emitting portion 34b: light receiving portion
36: Sensor case 38: O-ring
100: spreader 101: body
103: injection nozzle unit 105: water supply connection pipe
107: fixing nut 109: sensor receiving groove
111: fixed base 113: concave groove
115: latching groove 117: packing
200: human body sensor 201: printed circuit board
202: human body detection PCB substrate 203: control circuit case
205: Infrared sensor 205a: Light emitting element
205b: light receiving element 206a: display lamp
206b: Small LED indicator lamp 207: Sensor case
209: T-shaped blade 210: opening
211: Hard glass 215: Sensor guide
300: solenoid valve unit 301:
303: Solenoid 305: Water inlet
307: Water spout 325: Cleaning solution connection pipe
400: Battery case 401: C-shaped blade

Claims (7)

A human body detection sensor of an automatic urinal flushing device,
The human body detecting sensor includes:
A control circuit case in which a control circuit is accommodated;
A sensor case which does not transmit infrared rays connected to the control circuit case;
A human body detection PCB board accommodated in the sensor case;
At least two openings formed in the front surface of the sensor case;
An infrared ray device fixed to the human body detection PCB substrate and having a light emitting element and a light receiving element disposed at corresponding positions of at least two openings of the sensor case; And
And at least two hard glasses through which the infrared ray is transmitted and fixed respectively to the at least two openings,
Wherein the control circuit case is located in an upper space of the urinal, and the sensor case is located above the bowl of the urinal through the hole punctured downward in the upper space of the urinal. Sensors. delete The method according to claim 1,
Wherein the infrared device is composed of a light emitting element and a light receiving element,
The human body detection PCB substrate further includes a display lamp,
Wherein the infrared sensor and the indicator lamp are disposed on the human body detection PCB substrate at positions corresponding to the respective openings, wherein the infrared sensor and the indicator lamp are disposed on the front surface of the sensor case. The method according to claim 1,
Wherein the infrared device is composed of a light emitting element and a light receiving element,
A small LED display lamp is disposed on one side of the human body detection PCB substrate adjacent to the infrared device,
Wherein the human body sensing PCB substrate at a position corresponding to each of the openings is provided with an infrared ray device,
Wherein the light of the small LED display lamp is guided through an infrared device on one side thereof so as to be exposed to the outside. The method according to claim 1,
Wherein the hard glass is recessed lower than the surface of the sensor case. The method according to claim 1,
Further comprising a sensor guide having a guide groove at a corresponding position of the infrared device so as to restrict unnecessary interference of the infrared device signal and protect it from an external impact, group. The method according to claim 1,
Wherein the human body sensor unit is coupled with a spreader,
The spreader is vertically penetrated to form a sensor receiving groove for receiving the sensor case,
The sensor receiving groove is provided on the front surface as a direction of the user,
Wherein the sensor case of the human body detecting sensor is inserted into the sensor receiving groove of the spreader from top to bottom.

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