JP2013011150A - Automatic faucet device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automatic faucet device capable of preventing water adhering to a power supply part from running therearound and adhering to a control circuit part.SOLUTION: An automatic faucet device 1 includes a water discharge member 23 having a water discharge port 24, a solenoid valve 40 provided at the base end of the water discharge member 23, a detecting sensor provided at the front end of the water discharge member 23, a control circuit part 6 mounted at the front end of the water discharge member 23, and a power supply part 9. The power supply part 9 includes a storage case 45 mounted on the water discharge member 23 while being placed on both the water discharge member 23 and the control circuit part 6, and a battery 47 stored in the storage case 45. In the storage case 45, two positioning walls 50 are provided between which the control circuit part 6 is positioned in the cross direction of the water discharge member 23.

Description

  For example, the present invention relates to an automatic faucet device that opens an on-off valve and discharges water from a water discharge port when a detected object approaches the tip of a water discharge member.

  2. Description of the Related Art Conventionally, an automatic water faucet device (for example, see Patent Document 1) that opens an on-off valve and discharges water from a water discharge port when a detected object approaches the tip of the water discharge member has been used. An automatic faucet device disclosed in Patent Document 1 and the like includes a lower case, and a water discharge member that is accommodated in the lower case, an electromagnetic valve serving as an on-off valve is attached to a base end portion, and a water discharge port is provided at a distal end portion And a control circuit unit overlaid on the water discharge member and having a printed wiring board, a detection sensor mounted on the control circuit unit, a power supply unit overlaid on the control circuit unit and having a battery, and the lower case And an upper case that covers the attached control circuit unit, power supply unit, and electromagnetic valve.

  When the automatic water faucet device detects whether a detection object such as a human hand is approaching the tip of the water discharge member, the control circuit unit opens the electromagnetic valve based on information detected by the detection sensor. And water is discharged from the water outlet.

Japanese Utility Model Publication No. 7-44218

  By the way, since the automatic water faucet device described in Patent Literature 1 and the like has a power supply unit simply overlaid on the control circuit unit, the water that has entered into these cases from between the upper case and the lower case, There was a risk of sticking to the printed wiring board of the control circuit section around the bottom surface of the power supply section. It is not desirable that water adheres to the printed wiring board of the control circuit unit.

  This invention is made in view of said situation, Comprising: It aims at providing the automatic water tap apparatus which can prevent that the water adhering to a power supply part wraps around and adheres to a control circuit part. .

  In order to achieve the above object, an automatic water faucet device according to the present invention is capable of changing a water discharge member provided with a water discharge port, and water discharge and water stop attached to the water discharge member and from the water discharge port. A detection sensor that detects whether or not a detected object approaches the water discharge member, and is attached to the water discharge member so as to overlap with the water discharge member, and the detection object approaches An automatic faucet device comprising: a control circuit unit that opens the valve when the sensor detects it, and discharges water from the water outlet, and a power supply unit that supplies power to the control circuit unit, the detection sensor, and the valve The power supply unit is overlapped on both upper sides of the water discharge member and the control circuit unit, and a case main body attached to the water discharge member, extends from the case main body toward the water discharge member, And before At least, a wall extending downward from the upper portion of the control circuit unit characterized by comprising a.

  In the automatic faucet device, a wall extending downward from the upper part of the control circuit unit is provided in the storage case of the power supply unit overlaid on the control circuit unit, so that the water adhering to the storage case of the power supply unit However, it can prevent surrounding to the bottom face of a storage case. Therefore, it is possible to prevent water adhering to the storage case of the power supply unit from adhering to the control circuit unit.

  Further, in the automatic faucet device, the wall locks the electric wire of the harness connected to the control circuit unit between the wall and the control circuit unit, and the electric wire of the harness is outside the outer surface of the positioning wall. It is preferable to restrict the protrusion.

  In this automatic faucet device, the wall locks the harness between the control circuit unit, so that the water adhering to the housing case of the power supply unit can be prevented from adhering to the harness. Intrusion into the control circuit can be prevented. Therefore, it can prevent more reliably that the water adhering to the storage case of a power supply part adheres to a control circuit part.

  Further, since the wire of the harness is locked between the wall and the control circuit unit, when the water discharging member or the control circuit unit is accommodated in the case, it is possible to prevent the wire of the harness from coming into contact with the case or the like. The damaged case can prevent the wires of the harness from being damaged.

  Moreover, in the automatic water faucet device, it is preferable that the housing case is provided with a housing portion that houses a connector provided in the harness.

  In this automatic faucet device, since the housing case is provided with a housing portion for housing the connector provided in the harness, when the water discharging member or the control circuit portion is housed in the case, the connector is caught on the case or the like. Further, it is possible to prevent a load from acting on a contact point of the connector or a connection point with the electric wire by pulling the connector. Therefore, the harness can reliably connect the control circuit unit, the electromagnetic valve, the power supply unit, and the like.

  The automatic water faucet device according to the present invention can prevent water or the like from adhering to the control circuit unit that controls the valve.

FIG. 1 is a perspective view showing an automatic faucet device according to an embodiment. Drawing 2 is a side view explaining the state where the automatic faucet device concerning an embodiment was installed. FIG. 3 is a block diagram illustrating a configuration of the automatic faucet device according to the embodiment. FIG. 4 is an exploded perspective view of the automatic faucet device according to the embodiment. FIG. 5 is a perspective view illustrating a state where a power supply unit is attached to the water discharge member of the automatic faucet device according to the embodiment. Drawing 6 is a perspective view showing the state where the water discharging member and power supply part of the automatic faucet device concerning an embodiment were disassembled. FIG. 7 is a perspective view of a power supply unit of the automatic faucet device according to the embodiment. FIG. 8 is another perspective view of the power supply unit of the automatic faucet device according to the embodiment. FIG. 9 is a cross-sectional view taken along line IX-IX in FIG. 10 is a cross-sectional view taken along line XX in FIG. FIG. 11 is a flowchart showing the processing of the control circuit unit of the automatic faucet device according to the embodiment.

  Hereinafter, an embodiment of an automatic faucet device according to the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited by this embodiment. In addition, constituent elements in the following embodiments include those that can be easily replaced by those skilled in the art or those that are substantially the same.

  1 is a perspective view showing an automatic faucet device according to the embodiment, FIG. 2 is a side view illustrating a state in which the automatic faucet device according to the embodiment is installed, and FIG. 3 is an automatic water faucet according to the embodiment. FIG. 4 is an exploded perspective view of the automatic faucet device according to the embodiment. FIG. 5 is a perspective view of the automatic faucet device according to the embodiment. FIG. 6 is a perspective view showing a state in which the water discharge member and the power supply unit of the automatic faucet device according to the embodiment are disassembled, and FIG. 7 is the perspective view of the automatic faucet device according to the embodiment. FIG. 8 is another perspective view of the power supply unit of the automatic faucet device according to the embodiment, FIG. 9 is a cross-sectional view taken along line IX-IX in FIG. 5, and FIG. FIG. 11 is a cross-sectional view taken along line XX in FIG. 5, and FIG. It is over chart.

  The automatic faucet device 1 of the present embodiment shown in FIGS. 1 and 2 is typically installed in a sink or a wash basin of a building, and water from a water supply 2 (shown in FIG. 3) as a water supply source. Is discharged (discharged) toward the bowl 3 (shown in FIG. 2) as a water receiver such as the sink or sink of the sink.

  As shown in FIGS. 1 and 4, the automatic faucet device 1 includes a case 4, a water discharge unit 5, a control circuit unit 6 (shown in FIG. 4), a valve unit 7 (shown in FIG. 4), A warning LED 8 and a power supply unit 9 (shown in FIG. 4) are provided.

  As shown in FIGS. 1, 2, and 4, the case 4 includes a lower case 10, an upper case 11, and a base end case 12. The lower case 10 is made of an insulating synthetic resin, and integrally includes a bottom wall 13 and a pair of peripheral walls 14 erected from both edges of the bottom wall 13 and is formed in a bowl shape. At the end of the lower case 10 on the side away from the wall surface 16 of the building located on the near side in FIG. 1, a blocking wall 15 that closes between the pair of peripheral walls 14 is provided. The bottom wall 13 of the lower case 10 is gradually curved in a direction away from the upper case 11 toward the end near the wall surface 16 located on the back side in FIG. As shown in FIG. 1 or the like, a sensor hole 17, a water discharge hole 18 and an LED hole 19 penetrate the tip of the bottom wall 13 on the side far from the wall surface 16 located on the near side in FIG. doing. In the present embodiment, the sensor hole 17, the water discharge hole 18, and the LED hole 19 are sequentially provided from the end of the bottom wall 13 on the side away from the wall surface 16.

  The upper case 11 is made of a metal such as stainless steel, and is formed in a cylindrical shape provided with a notch 20 extending along the axial direction. The notch 20 is formed by cutting the upper case 11 from an end near the wall 16 on the back side in FIG. 1 to a tip on the side far from the wall 16 on the near side in FIG. In addition, a detachable lid 21 is detachably attached to an end of the upper case 11 on the side away from the wall surface 16 on the near side in FIG. The detachable lid 21 is formed in a disk shape, and closes the end of the upper case 11 when attached to the above-described end of the upper case 11. In the present embodiment, the detachable lid 21 is connected to the upper case 11 by the wire 63, and complete separation from the water discharge member 23 is prevented. The upper case 11 is assembled with the lower case 10 and the like in a state where the end of the peripheral wall 14 of the lower case 10 on the side away from the bottom wall 13 is accommodated through the notch 20.

  The proximal case 12 is made of an insulating synthetic resin and is formed in a ring shape. The base end case 12 passes through the lower case 10 and the upper case 11 assembled together, and is attached to the outer periphery of the base end portion of the lower case 10 and the upper case 11 on the back side in FIG. The proximal end case 12 is fixed to the wall surface 16 with screws 22 or the like.

  As shown in FIG. 4, the water discharge unit 5 includes a water discharge member 23 and a cylindrical water discharge port 24. The water discharge member 23 is made of a metal such as brass, for example, and is formed in a size that can be accommodated in the lower case 10. The water discharge member 23 is accommodated in the lower case 10 and passed through the upper case 11 through the notch 20. The water discharge member 23 is attached to the lower case 10 and the upper case 11 with screws 25 or the like. The water discharge member 23 has a flow path extending in the longitudinal direction therein. The flow path includes a bottom wall of the lower case 10 at the end of the water discharge member 23 near the wall surface 16 located on the back side in FIG. 4 and the tip of the water discharge member 23 on the side away from the wall surface 16 located on the near side in FIG. 13 is open to the bottom surface opposite to 13. In addition, a valve seat 26 that communicates the inside and outside of the flow path is provided at the proximal end portion of the water discharge member 23 near the wall surface 16.

  The water discharge port 24 is made of metal and is formed in a cylindrical shape. The water discharge port 24 is attached to the water discharge member 23 in a state where it communicates with the opening at the end located on the near side in FIG. 4 of the flow path. A packing 27 is provided between the water discharge port 24 and the water discharge member 23. The water outlet 24 projects from the bottom wall 13 through the water outlet hole 18. The water discharge port 24 is attached to the water discharge member 23 in a state of being in communication with the flow path, so that the water discharge member 24 is provided at the above-described distal end portion of the water discharge member 23. In the present embodiment, a filter 28 that foams the water to be discharged is provided in the water outlet 24.

  As shown in FIG. 4, the control circuit unit 6 includes a circuit case 29 made of an insulating synthetic resin and a printed wiring board (not shown). The circuit case 29 is formed in a flat box shape. The circuit case 29 is attached to the water discharge member 23 such that the tip of the water discharge member 23 on the front side in FIG. 4 is placed on the upper side when the automatic faucet device 1 is installed on a building or the like. The circuit case 29, that is, the control circuit unit 6 is fixed to the water discharge member 23 with screws 30 or the like. On both side surfaces of the circuit case 29, there are provided tie portions 31 that can tie covered electric wires 57, 59, 61 of harnesses 54, 55, 56 described later. The printed wiring board is housed in a circuit case 29, and is mounted with a microcomputer 32 (shown in FIG. 3 and hereinafter referred to as μCOM) as a control device and various circuit components. A detailed description of the μCOM 32 will be given later. In addition, a detection sensor 33 (shown in FIG. 3) is attached to the control circuit unit 6.

  As shown in FIG. 3, the detection sensor 33 includes a light receiving and emitting lens 34, an infrared light emitting element 35 as a light emitting element, and a position detecting element 36.

  The light receiving / emitting lens 34 is made of a synthetic resin having translucency and is formed in a flat plate shape. The light receiving / emitting lens 34 is held in the circuit case 29 of the control circuit unit 6. The light receiving / emitting lens 34 is passed through a sensor hole 17 provided in the bottom wall 13 of the lower case 10 and is provided below the lower case 10 so as to be substantially flush with the bottom wall 13 of the lower case 10. It has been. The detection sensor 33 is provided under the lower case 10 so that the light emitting / receiving lens 34 is passed through the sensor hole 17 and is substantially flush with the bottom wall 13 of the lower case 10. The water discharge member 23 is attached to the tip portion on the side away from the wall surface 16.

  The infrared light emitting element 35 and the position detecting element 36 are accommodated in the circuit case 29 and mounted on a printed wiring board. The infrared light emitting element 35 and the position detecting element 36 are provided at a position overlapping the light emitting / receiving lens 34. The infrared light emitting element 35 and the position detecting element 36 are arranged at intervals in the width direction of the circuit case 29 of the control circuit unit 6 (arranged in parallel).

  The infrared light emitting element 35 emits infrared rays or the like through a light receiving / emitting lens 34 toward a detection object such as a human hand 37 (shown in FIG. 2) or a bottom surface 3a (shown in FIG. 2) of the bowl 3 as a relative detection object. To do. The position detection element 36 is a well-known PSD (Position Sensitive Detector), and receives reflected light reflected from a detection object such as a human hand 37 and the bottom surface 3 a of the bowl 3. When the position detection element 36 receives a detection object such as a human hand 37 or reflected light reflected from the bottom surface 3 a of the bowl 3, the position detection element 36 outputs a signal toward the μCOM 32. The position detecting element 36 changes the position of receiving the reflected light reflected from the detection object such as the human hand 37 and the bottom surface 3 a of the bowl 3 when the distance from the detection object and the bottom surface 3 a of the bowl 3 is different. When the position where the reflected light is received changes, the position detection element 36 changes the current value or voltage value (corresponding to the value) of the signal output toward the μCOM 32.

  As described above, the position detection element 36 changes the position where the reflected light is received if the distance between the detected object and the bottom surface 3a of the bowl 3 is different, and the current of the signal output toward the μCOM 32 when the received position changes. By changing the value or the voltage value, a signal whose value such as a current value or a voltage value changes according to the distance to the detected object or the bottom surface 3a of the bowl 3 is output to the μCOM 32. Thus, the detection sensor 33 outputs a signal whose current value or voltage value changes in accordance with the detected object from the infrared light emitting element 35 and the position detection element 36 and the distance to the bottom surface 3a of the bowl 3. In this embodiment, as the distance between the infrared light emitting element 35 and the position detection element 36 of the detection sensor 33 and the detected object or the bottom surface 3a of the bowl 3 increases, the signal output by the position detection element 36 is increased. The voltage value gradually decreases. In the detection sensor 33, the infrared light emitting element 35 emits light toward the detection object and the like, the position detection element 36 receives the reflected light from the detection object, and outputs the above-described signal, whereby the distal end portion of the water discharge member 23. To detect whether the detected object approaches within a predetermined distance.

  As shown in FIG. 4, the valve unit 7 includes a valve body 38, a valve plate 39, and an electromagnetic valve 40 as a valve. The valve body 38 is accommodated in the above-described valve seat 26 of the water discharge member 23, and is provided so as to be movable so as to block and open the flow path. Further, the valve body 38 is always urged in the direction of blocking the flow path by a coil spring 41 provided between the valve body 39 and the valve plate 39. The valve plate 39 is made of an insulating synthetic resin and has a thick flat plate shape. The valve plate 39 is overlaid on the proximal end portion of the water discharging member 23 in a state where the valve seat 26 is closed, and is fixed to the water discharging member 23 with screws 42.

  The electromagnetic valve 40 includes a main body portion 43 attached to the valve plate 39 and a plunger 44 connected to the valve body 38. The main body 43 of the electromagnetic valve 40 is fixed to the valve plate 39 and the water discharge member 23 by screws 42. When an electric current or the like is passed, the electromagnetic valve 40 moves the valve body 38 against the biasing force of the coil spring 41 to open the flow path. The electromagnetic valve 40 opens the flow path in the water discharge member 23 when current flows through the μCOM 32, and blocks the flow path in the water discharge member 23 when current does not flow through the μCOM 32. Thus, the electromagnetic valve 40 is operated (changed in opening / closing) by whether or not a current flows through the μCOM 32, that is, in response to a command from the μCOM 32, and opens / closes the flow path in the water discharge member 23, that is, through the water discharge port 24. Change the water discharge and water stoppage.

  The warning LED 8 is housed inside the lower case 10 and the upper case 11 and is passed through the LED hole 19 of the lower case 10 so as to be exposed to the outside of the lower case 10. The warning LED 8 is turned on when a current is passed through the μCOM 32, and is turned off when a current is not passed through the μCOM 32. Thus, the operation state of the solenoid valve 40 is changed according to whether or not a current flows through the μCOM 32, that is, according to a command from the μCOM 32, so that it is turned on and off.

  As shown in FIG. 4, the power supply unit 9 includes a housing case 45, a battery holder 46, a battery 47 as a power storage member, a capacitor 65 (shown in FIG. 10) as a power storage member, and a capacitor holder 48 (FIG. 8). The housing case 45 is made of an insulating synthetic resin. As shown in FIGS. 7 and 8, the housing case 45 is integrally provided with a flat cylindrical case body 49, a positioning wall 50 as a plurality of walls erected from the case body 49, and a partition wall 51. ing. The case main body 49 accommodates the battery holder 46, that is, the battery 47 on the front side in FIG. 4, and accommodates the capacitor holder 48, that is, the capacitor 65, on the rear side in FIG. The case main body 49, that is, the housing case 45 is overlapped on the upper side when the automatic faucet device 1 is installed on the building or the like of both the water discharge member 23 and the control circuit unit 6 attached to the water discharge member 23. It is fixed to the water discharge member 23 by 64 or the like. The case body 49, that is, the housing case 45 is not overlapped with the valve plate 39 of the valve portion 7.

  In the present embodiment, two positioning walls 50 are provided. As shown in FIGS. 7 and 8, the positioning wall 50 is provided at a location near the tip of the water discharge member 23 of the case main body 49 of the housing case 45. The positioning wall 50 extends from the outer edge of the case main body 49 of the housing case 45 toward the water discharging member 23, and extends linearly along the longitudinal direction of the water discharging member 23 and the case main body 49 of the housing case 45. When the housing case 45 is attached to the water discharge member 23, the two positioning walls 50 are arranged at least between the control circuit unit 6 between each other along the width direction of the water discharge member 23 and the housing case 45 as shown in FIG. Position the top. That is, the positioning wall 50 extends below at least the upper part of the control circuit unit 6.

  In the present embodiment, five partition walls 51 are provided. As shown in FIGS. 7 and 8, the positioning wall 50 is provided at a location near the base end portion of the water discharging member 23 of the case main body 49 of the housing case 45. The partition wall 51 is erected from the bottom surface of the case main body 49 of the housing case 45 facing the water discharging member 23 toward the water discharging member 23. One of the five partition walls 51 is erected from the center in the width direction of the case main body 49 of the housing case 45 toward the water discharging member 23, and the case main body of the water discharging member 23 and the housing case 45. It extends linearly along the longitudinal direction of 49. The remaining four partition walls 51 extend linearly from both longitudinal ends of one partition wall 51 provided at the center in the width direction of the case body 49 toward the outer edges in the width direction of the case body 49. . A space surrounded by the plurality of partition walls 51 and the bottom surface of the case main body 49 forms an accommodating portion 52 for accommodating connectors 58 and 60 of harnesses 54 and 55 described later, as shown in FIG. . In the present embodiment, two accommodating portions 52 are provided in the case main body 49 of the accommodating case 45, and each accommodating portion 52 accommodates one connector 58, 60.

  The battery holder 46 holds the battery 47. The battery holder 46 can be inserted into and removed from the case main body 49. The battery holder 46 is freely inserted into and removed from the case main body 49, so that the battery 47 is inserted into and removed from the case main body 49, that is, the housing case 45. In the present embodiment, two AA batteries 47 are provided as the batteries 47, and the battery holder 46 is fixed to the case main body 49 of the housing case 45 by screws 53.

  The capacitor holder 48 holds a capacitor 65 that stores the power of the battery 47. The capacitor holder 48 can be inserted into and removed from the case main body 49. The capacitor holder 48 is freely inserted into and removed from the case main body 49, so that the capacitor 65 is taken in and out of the case main body 49, that is, the housing case 45. In the present embodiment, the capacitor holder 48 is locked and fixed to the inner edge of the case main body 49 of the housing case 45.

  The power supply unit 9 houses the battery 47 and the capacitor 65 in the case body 49 of the housing case 45, and fixes the battery holder 46 and the capacitor holder 48 to the case body 49 of the housing case 45. The power supply unit 9 immediately supplies the power from the battery 47 to the μCOM 32, the infrared light emitting element 35 of the detection sensor 33, the electromagnetic valve 40, and the like. Further, when the power supply unit 9 becomes unable to drive the solenoid valve 40 or the like with the power stored in the battery 47, the power supply unit 9 supplies the power stored in the capacitor 65 to the control circuit unit 6 or the like.

  The μCOM 32 is driven by power stored in a battery 47 or a capacitor 65 as a power source. The μCOM 32 is an arithmetic device that is mounted on a printed wiring board housed in the circuit case 29 of the control circuit unit 6 and includes a RAM, a ROM, a CPU, an input / output port, and a storage device (not shown). At least the position detection element 36 of the detection sensor 33 and the battery 47 and the capacitor 65 of the power supply unit 9 are connected to the input port of the μCOM 32. At least the electromagnetic valve 40, the infrared light emitting element 35 of the detection sensor 33, and the warning LED 8 are connected to the output port of the μCOM 32. The μCOM 32 controls the entire automatic faucet device 1 based on a signal indicating that a detection object such as the hand 37 has approached the tip of the water discharge member 23 detected by the detection sensor 33.

  When power is supplied from the battery 47 or the like as a power source, the μCOM 32 executes a flowchart illustrated in FIG. 11 as an example.

  In step S1, the μCOM 32 determines whether or not the voltage value of the battery 47 is equal to or less than a predetermined set value. If it is determined that the voltage value is equal to or less than the set value, the process proceeds to step S2, and is determined not to be less than the set value. Then, it progresses to step S4. The set value refers to a voltage value at which the electromagnetic valve 40 cannot be driven by the power of the battery 47 to open the flow path. In step S2, it is determined whether or not the detection sensor 33 detects that the detected object is approaching within a predetermined distance from the tip of the water discharge member 23. If S2 is repeated and detected, the process proceeds to step S3. Thus, in step S2, the detection sensor 33 is repeated until it detects that the detected object is approaching within a predetermined distance from the tip of the water discharge member 23. In step S3, the μCOM 32 causes the warning LED 8 to blink. As described above, when the μCOM 32 proceeds from step S1 to step S3, when the voltage value of the battery 47 becomes equal to or lower than the set value, that is, when the electromagnetic valve 40 cannot be driven by the electric power of the battery 47, the detection sensor 33 causes the water discharge member 23 to move. Even if it is detected that the object to be detected is approaching within a predetermined distance from the front end of the LED, the warning LED 8 is turned on without driving the electromagnetic valve 40, that is, without discharging water from the water outlet 24. Flashes to prompt the user to replace the battery 47.

  In step S4, the μCOM 32 causes the infrared light emitting element 35 of the detection sensor 33 to emit light at first predetermined time intervals. In step S4, when the detection sensor 33 detects that the detection object is approaching within a predetermined distance from the tip of the water discharge member 23, the μCOM 32 opens the flow path to the electromagnetic valve 40. In addition, water is discharged from the water outlet 24, and the infrared light emitting element 35 is caused to emit light at second predetermined time intervals shorter than the first predetermined time interval. In step S4, the μCOM 32 shuts off the flow path to the electromagnetic valve 40 when the detection sensor 33 does not detect that the detection object is approaching within a predetermined distance from the tip of the water discharge member 23. Thus, the water is stopped from the water outlet 24 and light is emitted at every first predetermined time interval at which the infrared light emitting element 35 emits light.

  Further, in step S4, the μCOM 32 passes the flow path to the electromagnetic valve 40 in a state where the detection sensor 33 has not detected that the detection object is approaching within a predetermined distance from the distal end portion of the water discharge member 23. And the state where water is stopped from the water outlet 24 is maintained, and the state where the infrared light emitting element 35 emits light is maintained every first predetermined time interval. Thus, in step S4, the μCOM 32 performs the detection operation of the detected object and returns to step S1. As described above, the μCOM 32 determines whether or not the voltage value of the battery 47 is equal to or lower than the set value before performing the detection operation of the detected object. If the warning LED 8 blinks and it is determined that it is not the following, the detection object is detected, and when the detection object is located within a predetermined distance from the tip of the water discharge member 23, water is discharged from the water outlet 24.

  Moreover, as shown in FIGS. 5 and 6, the automatic faucet device 1 described above includes a first harness 54 as a harness (shown only in FIG. 6) and a second harness 55 as a harness (see FIGS. 5 and 6). As shown in FIG. A third harness 56 (shown in FIGS. 5 and 6) as a harness is provided.

  The first harness 54 electrically connects the battery 47 and the capacitor 65 of the power supply unit 9 and the printed wiring board of the control circuit unit 6, that is, the μCOM 32, and supplies the power of the battery 47 and the capacitor 65 to the control circuit unit 6, that is, Supply to μCOM 32 and the like. The first harness 54 includes a plurality of covered electric wires 57 (corresponding to electric wires of course) and a pair of connectors 58 that are fitted to each other. In the present embodiment, the first harness 54 includes six covered electric wires 57. One end of three covered electric wires 57 of the six covered electric wires 57 is connected to the printed wiring board of the control circuit unit 6, and a connector 58 is attached to the other end. One end of the remaining three covered electric wires 57 is connected to the battery 47 and the capacitor 65 of the power supply unit 9, and the connector 58 is attached to the other end. The first harness 54 electrically connects the battery 47 and the capacitor 65 of the power supply unit 9 and the printed wiring board of the control circuit unit 6, that is, the μCOM 32, when the connectors 58 are fitted to each other.

  Further, the three covered electric wires 57 in which one end of the first harness 54 is connected to the printed wiring board of the control circuit unit 6 are connected to the connecting portion 31 and at least one of the longitudinal directions as shown in FIG. The section is passed between one of the two positioning walls 50 and the circuit case 29 of the control circuit section 6 (also referred to as positioned or locked). The three covered electric wires 57 in which one end of the first harness 54 is connected to the printed wiring board of the control circuit unit 6 are passed between the one positioning wall 50 and the circuit case 29 of the control circuit unit 6. The one positioning wall 50 is restricted from projecting outside the outer surface of the one positioning wall 50. In addition, the connector 58 fitted to each other of the first harness 54 is provided at the other end of the covered electric wire 57, so that it is provided at the center of the first harness 54. When the power supply unit 9 is fixed to the water discharge member 23, the connectors 58 fitted to each other of the first harness 54 are overlaid on the water discharge member 23, and as shown in FIG. It is accommodated in one of the accommodating portions 52.

  The second harness 55 electrically connects the printed wiring board of the control circuit unit 6, that is, the μCOM 32 and the main body 43 of the electromagnetic valve 40, and supplies the electric power of the battery 47 and the capacitor 65 via the control circuit unit 6 to the electromagnetic valve. 40. The second harness 55 includes a plurality of covered electric wires 59 (corresponding to electric wires, of course) and a pair of connectors 60 fitted to each other. In the present embodiment, the second harness 55 includes four covered electric wires 59. One end of two covered electric wires 59 of the four covered electric wires 59 is connected to a printed wiring board of the control circuit unit 6, and a connector 60 is attached to the other end. One end of the remaining two covered electric wires 59 is connected to the main body 43 of the solenoid valve 40, and the connector 60 is attached to the other end. The second harness 55 electrically connects the printed wiring board of the control circuit unit 6, that is, the μCOM 32, and the main body 43 of the electromagnetic valve 40 when the connectors 60 are fitted to each other.

  Further, the two covered electric wires 59 in which one end of the second harness 55 is connected to the printed wiring board of the control circuit unit 6 are connected to the connecting portion 31 and at least one of the longitudinal directions as shown in FIG. The section is passed between the other of the two positioning walls 50 and the circuit case 29 of the control circuit section 6 (also referred to as positioned or locked). The two covered electric wires 59 in which one end of the second harness 55 is connected to the printed wiring board of the control circuit unit 6 are passed between the other positioning wall 50 and the circuit case 29 of the control circuit unit 6. The other positioning wall 50 is restricted from projecting outside the outer surface of the other positioning wall 50. Further, the connector 60 fitted to each other of the second harness 55 is provided at the center of the second harness 55 by being provided at the other end of the covered electric wire 59. When the power supply unit 9 is fixed to the water discharge member 23, the connector 60 fitted to each other of the second harness 55 is overlaid on the water discharge member 23, and as shown in FIG. It is accommodated in the other accommodating part 52 of them.

  The third harness 56 electrically connects the printed wiring board of the control circuit unit 6, that is, the μCOM 32 and the warning LED 8, and supplies the power of the battery 47 to the warning LED 8 through the control circuit unit 6. The third harness 56 includes a plurality of covered electric wires 61 (corresponding to electric wires, of course). In the present embodiment, the third harness 56 includes two covered electric wires 61. One end of the two covered electric wires 61 is connected to the printed wiring board of the control circuit unit 6, and the other end is connected to the warning LED 8. The two covered electric wires 61 of the third harness 56 are tied to the tie portion 31 and, as shown in FIG. 9, at least part of the longitudinal direction of the other two of the two positioning walls 50 and the control circuit portion 6 are provided. The circuit case 29 is passed (positioned). The covered electric wire 61 of the third harness 56 is projected between the other positioning wall 50 and the outer surface of the other positioning wall 50 by being passed between the other positioning wall 50 and the circuit case 29 of the control circuit unit 6. It is regulated by this other positioning wall 50.

  The automatic faucet device 1 having the above-described configuration is assembled as follows. A battery holder 46 and a capacitor holder 48 holding a capacitor 65 are attached to the housing case 45 in advance, and the power supply unit 9 is assembled. The μCOM 32, the infrared light emitting element 35, the position detecting element 36, and various circuit components are mounted on a printed wiring board and housed in a circuit case 29 to which the light emitting / receiving lens 34 is attached, and the control circuit unit 6 and the detection sensor 33 are accommodated. Assemble. One end of the covered wires 57, 59, 61 of the harnesses 54, 55, 56 is attached to the control circuit unit 6, one end of the covered wire 57 of the first harness 54 is attached to the housing case 45 of the power supply unit 9, and the second harness 55. One end of the covered electric wire 59 is attached to the main body 43 of the solenoid valve 40 of the power supply unit 9, and the connectors 58 and 60 are attached to the other ends of the covered electric wires 57 and 59 of the first and second harnesses 54 and 55, respectively. The warning LED 8 is attached to the other end of the covered electric wire 61 of the harness 56. Further, the water discharge port 24, the packing 27 and the filter 28 are attached to the water discharge member 23.

  Then, the valve body 38 is inserted into the valve seat 26 of the water discharge member 23, the control circuit unit 6 and the valve plate 39 are fixed to the water discharge member 23, and the plunger 44 of the electromagnetic valve 40 is attached to the valve body 38. The main body 43 of the electromagnetic valve 40 is fixed to the valve plate 39. After the predetermined covered electric wires 57, 59, 61 of the harnesses 54, 55, 56 are connected to the connecting portion 31, the connectors 58 of the first harness 54 are fitted to each other as shown in FIG. 55 connectors 60 are fitted together. Then, the covered electric wires 57, 59, 61 are passed (positioned) between the positioning wall 50 and the circuit case 29 of the control circuit unit 6, so that the connectors 58, 60 are accommodated in the accommodating part 52. The housing case 45 of the power supply unit 9 is fixed to the water discharge member 23 as shown in FIG.

  Then, the detection sensor 33 is passed through the sensor hole 17, the water discharge port 24 is passed through the water discharge hole 18, the warning LED 8 is passed through the LED hole 19, and the water discharge member 23 and the like are inserted into the lower case 10. The water discharging member 23 is accommodated and fixed to the lower case 10. Then, the housing case 45 of the power supply unit 9 is brought close to the lower case 10 while sliding along the longitudinal direction of the upper case 11 so that the housing case 45 of the power supply unit 9 gradually enters the upper case 11 through the notch 20 or the like. When the power supply unit 9, the valve unit 7, and the like are completely accommodated in the upper case 11, the upper case 11 is fixed to the water discharging member 23. Then, the detachable lid 21 is attached to the upper case 11 or the like. Further, the base end case 12 is attached to the outer periphery of the base end portions of the upper case 11 and the lower case 10 through the upper case 11 and the lower case 10 in the base end case 12.

  In the assembled automatic faucet device 1, the base end of the water discharge member 23 is attached to the wall surface 16 of the building, the flow path of the water discharge member 23 is connected to the pipe 62, and the water discharge port 24 and the detection sensor 33 are connected. It is installed above the bowl 3 so as to be opposed to the bottom surface 3 a of the bowl 3 as a water receiver installed on the wall surface 16. Then, in the automatic faucet device 1, the battery 47 is attached to the battery holder 46, and the μCOM 32 is immediately driven to execute the flowchart shown in FIG. The automatic faucet device 1 has a longitudinal direction substantially perpendicular to the wall surface 16 and parallel to the horizontal direction, and extends from the wall surface 16 toward the upper center of the bowl 3. The pipe 62 described above has one end connected to the water supply 2 as a water supply source, passed through the wall surface 16 of the building, and the other end connected to the water discharge member 23, It communicates with the flow path. The pipe 62 guides water from the water supply 2 to the water outlet 24.

  In the automatic faucet device 1 configured as described above, when a detected object is located within a predetermined distance from the detection sensor 33 provided at the tip, the μCOM 32 opens the electromagnetic valve 40 and continuously supplies water from the spout 24. Water is discharged.

  The automatic faucet device 1 having the above-described configuration extends downward from the upper part of the power supply unit 9 stacked on the control circuit unit 6, and the control circuit unit 6 extends between the housing cases 45 along the width direction. Since the two positioning walls 50 are provided, it is possible to prevent water adhering to the storage case 45 of the power supply unit 9 from entering the bottom surface of the storage case 45. Therefore, it is possible to prevent water adhering to the housing case 45 of the power supply unit 9 from adhering to the control circuit unit 6 and to prevent the electromagnetic valve 40 from being opened and closed.

  Moreover, since the positioning wall 50 positions (locks) the covered electric wires 57, 59, 61 of the harnesses 54, 55, 56 between the control circuit unit 6, the power supply unit 9 is accommodated in the harnesses 54, 55, 56. It is possible to prevent water adhering to the case 45 from adhering, and to prevent water from entering the control circuit unit 6 through the harnesses 54, 55, and 56. Therefore, it is possible to more reliably prevent water adhering to the housing case 45 of the power supply unit 9 from adhering to the control circuit unit 6.

  Moreover, since the covering wall 57, 59, 61 of the harnesses 54, 55, 56 is positioned (locked) between the positioning wall 50 and the control circuit unit 6, the water discharge member 23 and the control circuit unit 6 are placed in the case 4. When accommodated, the covered wires 57, 59, 61 of the harnesses 54, 55, 56 can be prevented from coming into contact with the case 4 or the like, and the covered wires 57, 59, 61 of the harnesses 54, 55, 56 can be prevented by the case 4 described above. Can be prevented from being damaged.

  Furthermore, since the automatic faucet device 1 is provided with the accommodating part 52 for accommodating the connectors 58 and 60 provided in the central part of the harnesses 54, 55 and 56 in the accommodating case 45, the water discharge member 23 and the control circuit part. When the connector 6 is accommodated in the case 4, the connectors 58, 60 are hooked on the case 4, and the connectors 58, 60 are pulled, so that the contacts of the connectors 58, 60 and the covered wires 57, 59, 61 are connected. It is possible to prevent a load from acting on the connection location. Therefore, the harnesses 54, 55, and 56 can reliably connect the control circuit unit 6, the electromagnetic valve 40, the power supply unit 9, and the like.

  In addition, the automatic water faucet device 1 which concerns on embodiment of this invention mentioned above is not limited to embodiment mentioned above, A various change is possible in the range described in the claim. That is, in the automatic faucet device 1, when the electric power from the battery 47 is supplied, the μCOM 32 may appropriately set the predetermined distance. In the present invention, the control circuit unit 6, the detection sensor 33, and the water discharge port 24 do not necessarily have to be provided at the distal end portion of the water discharge member 23, and the electromagnetic valve 40 does not have to be provided at the proximal end portion of the water discharge member 23. good.

Industrial applicability

  As described above, the present invention is useful for an automatic faucet device that automatically discharges water when a detection object such as a part of a human body such as an automatic faucet device approaches.

DESCRIPTION OF SYMBOLS 1 Automatic faucet device 6 Control circuit part 9 Power supply part 23 Water discharge member 24 Water discharge port 33 Detection sensor 37 Hand (detection object)
40 Solenoid valve (valve)
45 Housing case 50 Positioning wall (wall)
54 First harness (harness)
55 Second harness (harness)
56 Third harness (harness)
57, 59, 61 Coated wire (electric wire)
58, 60 Connector 62 Piping

Claims (3)

A water discharge member provided with a water discharge port;
A valve attached to the water discharge member and capable of changing water discharge and water stoppage from the water discharge port;
A detection sensor for detecting whether or not a detection object approaches the water discharge member;
A control circuit unit that is overlaid on the water discharge member, is attached to the water discharge member, and opens the valve when the detection sensor detects that the detected object is approaching, and discharges water from the water discharge port; ,
In the automatic faucet device comprising the control circuit unit, the detection sensor, and a power supply unit that supplies power to the valve,
The power supply unit is
A case body that is overlaid on both the water discharge member and the control circuit unit and is attached to the water discharge member;
A wall extending from the case body toward the water discharge member and extending downward from at least the upper part of the control circuit unit,
An automatic faucet device characterized by that. The wall locks the electric wire of the harness connected to the control circuit unit between the control circuit unit and restricts the electric wire of the harness from projecting outside the outer surface of the positioning wall.
The automatic water faucet device according to claim 1. The housing case is provided with a housing portion that houses a connector provided in the harness.
The automatic faucet device according to claim 2, wherein:

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