Proximity type control faucet
The non-contact faucet design, which combines capacitive sensing circuits and mechanical valves, solves the hygiene and ease of use issues of traditional faucets, achieves healthy and convenient faucet control, and maintains the integrity of the appearance.
Patent Information
- Application Number
- CN202422979564.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-12-04
AI Technical Summary
The mechanical and optical sensing control methods of traditional faucets are prone to causing unhygienic oil stains on the surface, and the exposed optical sensing window is inconvenient to use; touch control may also cause oil stains on the surface, and the optical sensor is easily blocked by stains and malfunctions.
Using a capacitive sensing circuit, the induction coil detects the change in capacitance when a human body approaches. The circuit board module controls the solenoid valve to open or close the water outlet. Combined with manual control of the mechanical valve, non-contact operation is achieved, and the insulation design avoids false operation and electrical signal transmission.
It realizes hygienic and healthy non-contact control, avoids surface oil stains and misoperation of traditional methods, maintains the integrity of the faucet appearance, and enhances ease of use and designability.
Smart Images
Figure CN223447795U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to faucet technical field. More specifically, the utility model relates to a close type control faucet. BACKGROUND
[0002] Traditional faucet is controlled to open or close water by mechanical handle, which belongs to contact type operation and can cause surface oil stain in some use scenarios, and is unhygienic. The popular induction faucet on the market belongs to non-contact type operation, but needs to use optical device for induction operation and needs to install light transmission induction window shell, and the induction window is arranged on the surface of the faucet. Due to the limitation of the exposed position, the user must aim at the induction window to stretch hand for induction, and the use is inconvenient. There are also touch control faucets on the market, which can realize opening and closing of water by touching the outer surface of the faucet, but the touch action also belongs to contact type operation and can also cause surface oil stain, which is unhygienic. SUMMARY
[0003] An object of the utility model is to solve at least the above problems and provide at least the advantages to be explained later.
[0004] In order to achieve these objects and other advantages according to the utility model, a close type control faucet is provided, which comprises a faucet assembly, a control box and a battery box. The faucet assembly comprises a faucet body and a circuit board module. The faucet body is made of metal. The circuit board module is arranged in the faucet body. The circuit board module comprises a capacitive induction circuit with an induction coil.
[0005] The control box comprises a first box body and an electromagnetic valve arranged in the first box body. The first box body is provided with a water inlet channel and a water outlet channel. The electromagnetic valve is located between the water inlet channel and the water outlet channel to control the conduction or blockage of the water inlet channel and the water outlet channel.
[0006] The water outlet channel is communicated with the water outlet end of the faucet. The circuit board module is in communication connection with the electromagnetic valve to detect the signal generated by the induction coil when the human body approaches the faucet body, so as to control the electromagnetic valve to make the water inlet channel and the water outlet channel conductive.
[0007] The battery box is electrically connected with the circuit board module and the electromagnetic valve respectively to provide electric energy.
[0008] Preferably, the faucet body is further provided with a mechanical valve. The mechanical valve is provided with a cold water inlet pipe, a hot water inlet pipe and a warm water outlet pipe. The warm water outlet pipe is communicated with the water inlet channel.
[0009] Preferably, the faucet assembly further comprises a metal elbow connected to the faucet body, a shower head arranged at the end of the elbow for water outlet, a water inlet of the shower head is connected with a pull hose, the other end of the pull hose passes through the elbow and the faucet body and is communicated with the water outlet channel.
[0010] Preferably, the cold water inlet pipe, the hot water inlet pipe, the warm water outlet pipe and the pull hose are all made of non-metal material.
[0011] Preferably, a plastic bushing is arranged between the shower head and the end of the elbow for insulating and isolating the shower head and the elbow.
[0012] The faucet assembly further comprises a plastic base arranged at the lower end of the faucet body for insulating and isolating the faucet body and the metal-faced basin.
[0013] A gap is arranged between the handle of the mechanical valve and the faucet body for insulating and isolating the faucet body and the handle of the mechanical valve.
[0014] Preferably, a hanging ear is arranged on the first box body for mounting and fixing the control box.
[0015] Preferably, the circuit board module comprises a PCB board and wires one and two connected to the PCB board, the wires one and two are both provided with waterproof quick connectors for connecting the wire quick connectors on the battery box and the control box respectively, one of the two waterproof quick connectors is a male connector and the other is a female connector.
[0016] Preferably, a capacitive sensing circuit is integrated on the PCB board, the sensing coil belongs to the capacitive sensing circuit, and the sensing coil and other circuit structures of the capacitive sensing circuit are arranged on two sides of the PCB board respectively.
[0017] Preferably, a mounting hole of the circuit board module is arranged on the faucet body, and a metal decorative cover is arranged outside the mounting hole.
[0018] The utility model discloses at least the following beneficial effects: through using the faucet of capacitive induction switch, because capacitive proximity induction is with the change of the capacitance of detection coil around and perceives whether there is object proximity, and the change is detected, therefore the change of the capacitance of inherent existence such as faucet shell has no influence, and the user need not touch the faucet to control the faucet to open the water or close the water, contactless control, health and hygiene, compared with the traditional optical faucet, the utility model induction coil can be placed in the faucet completely, does not need to expose extra window, will not destroy the integrity of the appearance of the faucet, makes the appearance of the faucet have more possibility, and the capacitive induction mode also will not appear the misoperation of traditional optical induction faucet because of surface stain shielding.
[0019] Other advantages, objects and features of the utility model will be embodied partly through the following description, and some will be understood by the person skilled in the art through the research and practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is the external structure schematic drawing of the approach type control faucet for the utility model embodiment;
[0021] Figure 2 It is the structure schematic drawing of the faucet assembly for the utility model embodiment;
[0022] Figure 3 It is the induction range schematic drawing of the approach type control faucet for the utility model embodiment;
[0023] Figure 4 It is the internal structure schematic drawing of the control box for the utility model embodiment;
[0024] Figure 5 It is the explosion drawing of circuit board module and faucet body for the utility model embodiment;
[0025] Figure 6 It is the internal structure schematic drawing of the faucet body for the utility model embodiment;
[0026] Figure 7 It is the structure schematic drawing of circuit board module for the utility model embodiment;
[0027] Figure 8 It is the circuit principle diagram of circuit board module for the utility model embodiment. DETAILED DESCRIPTION
[0028] The utility model will be further explained in detail in combination with the drawings, so that the person skilled in the art can implement according to the description text.
[0029] It should be noted that the experimental methods described in the following embodiments are conventional methods, and the reagents and materials are commercially available unless otherwise specified. In the description of the present utility model, the terms "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present utility model.
[0030] As shown in Figures 1-8 The present utility model provides a close type control faucet, which comprises a faucet assembly 1, a control box 2 and a battery box 3. The faucet assembly 1 comprises a faucet body 101 and a circuit board module 102. The faucet body 101 is made of metal. The circuit board module 102 is arranged in the faucet body 101. The circuit board module 102 comprises a capacitive induction circuit with an induction coil.
[0031] The control box 2 comprises a first box body 201 and a solenoid valve 202 arranged in the first box body 201. The first box body 201 is provided with a water inlet channel 203 and a water outlet channel 204. The solenoid valve 202 is located between the water inlet channel 203 and the water outlet channel 204 to control the conduction or blockage of the water inlet channel 203 and the water outlet channel 204.
[0032] The water outlet channel 204 is in communication with the water outlet end of the faucet. The circuit board module 102 is in communication connection with the solenoid valve 202 to detect the signal generated by the induction coil when the human body is close to the faucet body 101, thereby controlling the solenoid valve 202 to make the water inlet channel 203 and the water outlet channel 204 conductive.
[0033] The battery box 3 is electrically connected with the circuit board module 102 and the solenoid valve 202 respectively to provide electric energy.
[0034] Specifically, the faucet body 101 is a special-shaped pipe structure as shown in Figure 1 The lower end interface is used for installing the base of the faucet, the upper end interface is used for connecting the elbow pipe 107, the left end interface is used for installing the circuit board module 102, and the right end interface is used for installing the mechanical valve.
[0035] The control box 2 and the battery box 3 are arranged beside the faucet assembly 1. Four 5# alkaline batteries can be used in the battery box 3 for power supply.
[0036] The induction coil is a closed metal conductor, including but not limited to circular, oval, square shapes; the embodiment uses the circular copper foil of the PCB as the induction coil, and the material of the induction coil includes but is not limited to PCB copper foil, FPC, ITO, etc. The diameter of the induction coil directly affects the approaching distance of the faucet assembly 1 close to the operation, and the larger the diameter, the farther it can be from the faucet surface. There should be no copper foil wiring inside the induction coil.
[0037] The circuit of the circuit board module 102 (as shown in Figure 8 The circuit of the circuit board module 102 (as shown in
[0038] The working process of the above embodiment is as follows: when the faucet surface has an object (such as a human hand) that can change the surrounding capacitance close to the preset distance, the circuit board module 102 will generate a signal and power or power off the electromagnetic valve 202, realizing the opening or closing of the electromagnetic valve 202, and further realizing the opening and closing of the entire faucet. The product can also touch the faucet surface to realize operation control. Since the capacitive sensing principle is used, directly touching the faucet sensor surface is equivalent to approaching less than the sensing distance, and the effect of controlling the faucet water can also be achieved.
[0039] Further, the faucet body 101 is also provided with a mechanical valve, the mechanical valve is provided with a cold water inlet pipe 103, a hot water inlet pipe 104 and a warm water outlet pipe 105, and the warm water outlet pipe 105 is in communication with the water inlet channel 203.
[0040] Specifically, the valve core of the mechanical valve is installed in the right end interface of the faucet body 101, the handle 106 of the mechanical valve is installed outside the right end interface of the faucet body 101, the cold water inlet pipe 103, the hot water inlet pipe 104 and the warm water outlet pipe 105 of the mechanical valve all extend from the lower end interface of the faucet body 101, the cold water inlet pipe 103 is connected with the pipeline for supplying cold water, the hot water inlet pipe 104 is connected with the pipeline for supplying hot water, and the warm water outlet pipe 105 is connected with the water inlet channel 203.
[0041] In the above embodiment, the handle 106 of the mechanical valve can control the water temperature and the opening or blocking of the faucet waterway, so the mechanical valve needs to be opened before the induction coil controls the opening and closing of the entire faucet. By setting the mechanical valve, the opening or blocking of the faucet waterway can be manually controlled, and when the electromagnetic valve 202 fails, the mechanical valve is used to manually control the blocking of the faucet waterway, so as to facilitate the disassembly and maintenance of the electromagnetic valve 202.
[0042] Further, the faucet assembly 1 further comprises a metal elbow 107 connected to the faucet body 101, and a shower head 108 arranged at the end of the elbow 107 for water outlet, the water inlet of the shower head 108 is connected with a pull hose 109, the other end of the pull hose 109 penetrates through the elbow 107 and the faucet body 101, and then communicates with the water outlet channel 204.
[0043] In the above embodiment, the elbow 107 is used to increase the water outlet height of the faucet, which is convenient for the water environment in the kitchen. The combination of the pull hose 109 and the shower head 108 makes the shower head 108 convenient to be removed from the end of the elbow 107 and moved, which is suitable for a larger range of water use and overcomes the defect that the water use position of the elbow 107 is fixed. The metal elbow 107 makes the induction coil obtain the induction signal through the elbow 107.
[0044] Further, the cold water inlet pipe 103, the hot water inlet pipe 104, the warm water outlet pipe 105 and the pull hose 109 are all made of non-metallic material, and are insulated and isolated from the faucet body 101 and the elbow 107.
[0045] Further, a plastic bushing 110 is arranged between the shower head 108 and the end of the elbow 107, so as to insulate and isolate the shower head 108 and the elbow 107.
[0046] The faucet assembly 1 further comprises a plastic base 111 arranged at the lower end of the faucet body 101, which is used to insulate and isolate the faucet body 101 and the metal face basin.
[0047] The handle 106 of the mechanical valve is arranged with a gap between the handle 106 and the faucet body 101, so as to insulate and isolate the faucet body 101 and the handle 106 of the mechanical valve.
[0048] Specifically, the plastic base 111 is not provided with surface treatment with metal coating, so as to facilitate the insulation between the faucet assembly 1 and the metal countertop on which the faucet is installed. Since the product is controlled by capacitance and inductance, it is necessary to ensure that the plastic base 111 has sufficient thickness to avoid electric conduction caused by water accumulation on the metal countertop. The thickness of the plastic base 111 is usually greater than 5 mm to avoid the inductance signal from being transmitted to the metal countertop.
[0049] The handle 106 and the body are insulated, and there is a large air gap, so that the inductance signal will not be transmitted to the handle 106, that is, the inductance signal will not be generated when the handle 106 is approached and touched.
[0050] The curved pipe 107 is a metal part, and a plastic bushing 110 is arranged between the curved pipe 107 and the shower head 108. The surface of the shower head 108 is usually provided with a metal coating, so the plastic bushing 110 is needed to insulate and isolate the shower head 108 and the curved pipe 107, and the isolation distance is greater than 1.5 mm, so as to avoid the inductive signal from being transmitted to the shower head 108.
[0051] Through the above-mentioned insulation and isolation arrangement, the induction range of the faucet can be controlled to be near the curved pipe 107 and the faucet body 101, and cannot be expanded to the metal countertop and the shower head 108, so as to avoid that the too large induction range causes the faucet to be opened by mistake.
[0052] Further, in order to prevent the misoperation caused by external interference, a timeout protection function can be set in the program built in the circuit board module 102, that is, if the continuous water output reaches a set time, the water output is automatically turned off, for example, the set time is 3 minutes.
[0053] Further, the first box body 201 is provided with a hanging ear 205, so as to be used for mounting and fixing the control box 2.
[0054] Further, the circuit board module 102 comprises a PCB board 1021 and wires one 1022 and wires two 1023 connected to the PCB board 1021. The wires one 1022 and the wires two 1023 are both provided with waterproof quick connectors, so as to be respectively connected to the wire quick connector terminals on the battery box 3 and the control box 2. One of the two waterproof quick connectors is a male head, and the other is a female head.
[0055] In the above-mentioned embodiment, the waterproof quick connector facilitates the quick connection of the circuit board module 102 with the battery box 3 and the control box 2 respectively.
[0056] Further, the PCB board 1021 is integrated with the capacitive induction circuit, and the induction coil belongs to the capacitive induction circuit. The induction coil and other circuit structures of the capacitive induction circuit are respectively arranged on two surfaces of the PCB board 1021.
[0057] Specifically, as shown in the Figure 8 induction coil and other circuit structures of the capacitive induction circuit are respectively arranged on two surfaces of the PCB board 1021, so as to prevent the other circuit structures from interfering with the induction coil.
[0058] Further, the faucet body 101 is provided with a mounting hole of the circuit board module 102, and the mounting hole is provided with a metal decorative cover 112. The metal decorative cover 112 can not only block the left end interface of the faucet body 101 to make the appearance of the faucet body 101 beautiful, but also make the induction coil obtain the induction signal through the metal decorative cover 112.
[0059] In the above-mentioned embodiments, the faucet using the capacitive sensing switch, since the capacitive proximity sensing is used to detect the change amount of the capacitance value around the detection coil to sense whether there is an object approaching, the change amount is detected, thus the change amount of the capacitance existing inherently in the faucet body and the like has no influence, the user can control the faucet to open the water outlet or close the water outlet without touching the faucet, contactless control, hygienic and healthy; compared with the traditional optical faucet which must place the sensing window on the body switch, the sensing coil of the utility model can be completely placed in the faucet, no need to expose extra window, no damage to the integrity of the appearance of the faucet, so that the appearance of the faucet has more possibilities; meanwhile, the capacitive sensing method also will not appear the misoperation situation due to the surface stain shielding of the traditional optical sensing faucet.
[0060] Although the embodiments of the present application have been disclosed as above, it is not limited to the application listed in the specification and the embodiments, it can be fully applied to various fields suitable for the present application, and for those skilled in the art, other modifications can be easily realized, thus the present application is not limited to specific details and the figures shown and described herein, without departing from the general concept defined by the claims and the equivalent scope.
Claims
1. A proximity control faucet, comprising a faucet assembly, a control box and a battery box, characterized in that: The faucet assembly includes a faucet body and a circuit board module, the faucet body is made of metal, the circuit board module is arranged in the faucet body, and the circuit board module includes a capacitive sensing circuit with an induction coil; The control box includes a first box body and a solenoid valve disposed in the first box body. The first box body is provided with a water inlet flow channel and a water outlet flow channel. The solenoid valve is located between the water inlet flow channel and the water outlet flow channel to control the conduction or blocking of the water inlet flow channel and the water outlet flow channel. The water outlet channel is connected to the water outlet end of the faucet, and the circuit board module is in communication with the solenoid valve to detect the signal generated by the induction coil when the human body approaches the faucet body, thereby controlling the solenoid valve to connect the water inlet channel and the water outlet channel; The battery box is electrically connected to the circuit board module and the solenoid valve respectively to provide electrical energy.
2. The proximity control faucet according to claim 1, wherein: A mechanical valve is also provided in the faucet body. The mechanical valve is provided with a cold water inlet pipe, a hot water inlet pipe and a warm water outlet pipe. The warm water outlet pipe is communicated with the water inlet channel.
3. The proximity control faucet according to claim 2, characterized in that: The faucet assembly also includes a metal curved pipe connected to the faucet body, and a shower head arranged at the end of the curved pipe for discharging water. The water inlet of the shower head is connected to a pull-out hose, and the other end of the pull-out hose passes through the curved pipe and the faucet body, and then communicates with the water outlet channel.
4. The proximity control faucet according to claim 3, characterized in that: The cold water inlet pipe, the hot water inlet pipe, the warm water outlet pipe and the pull-out hose are all braided pipes made of non-metallic materials.
5. The proximity control faucet according to claim 3, characterized in that: A plastic bushing is provided between the shower head and the end of the elbow to insulate the shower head and the elbow; The faucet assembly also includes a plastic base provided at the lower end of the faucet body, for insulating the faucet body and the metal basin; A gap is provided between the handle of the mechanical valve and the faucet body, for insulating the faucet body and the handle of the mechanical valve.
6. The proximity control faucet according to claim 1, wherein: The first box body is provided with a hanging ear for installing and fixing the control box.
7. The proximity control faucet according to claim 1, wherein: The circuit board module also includes a PCB board and wire 1 and wire 2 connected to the PCB board. Both wire 1 and wire 2 are provided with waterproof quick-connect connectors for connecting to the wire quick-connect terminals on the battery box and the control box respectively. One of the two waterproof quick-connect connectors is a male head and the other is a female head.
8. The proximity control faucet according to claim 7, wherein: The capacitive sensing circuit is integrated on the PCB board, the induction coil belongs to the capacitive sensing circuit, and the induction coil and other circuit structures of the capacitive sensing circuit are respectively arranged on two sides of the PCB board.
9. The proximity control faucet according to claim 7, wherein: The faucet body is provided with a mounting hole for the circuit board module, and a metal decorative cover is provided outside the mounting hole.