Sensing device capable of preventing light interference and faucet

Abstract

The utility model discloses an anti-light interference induction device and a faucet, the induction device comprises an induction circuit board, an electric eye tube seat and two polarized light filters, the induction circuit board is provided with a transmitting element used for transmitting induction light and a receiving element used for receiving the induction light; a first slot and a second slot are formed in the surface, facing the induction circuit board, of the electric eye tube seat, a transmitting hole is formed in the bottom wall of the first slot, a receiving hole is formed in the bottom wall of the second slot, the aperture of the receiving hole is smaller than or equal to 2.5 mm, the transmitting element is inserted into the first slot, and the receiving element is inserted into the second slot. The axis of the transmitting hole and the axis of the receiving hole form an acute angle; one of the two polarization filters is arranged at the transmitting hole, and the other polarization filter is arranged at the receiving hole. The induction device provided by the utility model can effectively reduce the interference of external light, so that the induction device can work stably and normally, and the correctness of an induction result is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to induction faucet technical field, especially inductive device and faucet of light interference prevention. BACKGROUND

[0002] The working principle of induction faucet is to automatically dispense water through infrared induction. This design aims to improve hygiene and convenience. However, sometimes induction faucets can be disturbed by light, leading to misoperation or unstable working conditions. Light interference can be caused by various factors, such as:

[0003] 1. Strong light source: If there is strong light around the faucet, such as direct sunlight or high-brightness light, it may interfere with the normal operation of the infrared sensor. This is because the infrared sensor relies on detecting the weak infrared radiation emitted by the human body, and the strong light source may mask this signal.

[0004] 2. Reflected light: Some smooth surfaces (such as mirrors, glass, sink walls, etc.) may reflect light, and these reflected lights may also be received by the infrared sensor, causing false triggering. SUMMARY

[0005] The utility model aims at at least solving one of the technical problems existing in the prior art. To this end, the utility model provides an inductive device that can effectively reduce the interference of external light, so that the inductive device can work stably and normally, and ensure the correctness of the inductive result.

[0006] The utility model also provides a faucet with the above-mentioned light interference prevention inductive device.

[0007] According to the first aspect of the utility model embodiment, a light interference prevention inductive device is provided, which comprises an induction circuit board, an electric eye pipe base and two polarized filters. The induction circuit board is provided with a transmitting element for transmitting sensing light and a receiving element for receiving sensing light. The surface of the electric eye pipe base facing the induction circuit board is provided with a first slot and a second slot. The bottom wall of the first slot is provided with a transmitting hole, and the bottom wall of the second slot is provided with a receiving hole. The aperture of the receiving hole is less than or equal to 2.5mm. The transmitting element is inserted into the first slot, and the receiving element is inserted into the second slot. The transmitting direction of the transmitting element is along the axis of the transmitting hole, and the receiving direction of the receiving element is along the axis of the receiving hole. The axis of the transmitting hole and the axis of the receiving hole are arranged at an acute angle. One of the two polarized filters is arranged at the transmitting hole, and the other is arranged at the receiving hole.

[0008] The application provides an inductive device capable of preventing light interference.

[0009] According to some embodiments of the application, the included angle between the axis of the emitting hole and the axis of the receiving hole is 28 degrees.

[0010] According to some embodiments of the application, the aperture of the receiving hole is 2 mm.

[0011] According to some embodiments of the application, the inductive device further comprises an electric eye shell, the electric eye shell is sleeved on the electric eye pipe base, the polarized filter is located between the electric eye shell and the electric eye pipe base, and the electric eye shell and the electric eye pipe base are matched to clamp and fix the polarized filter.

[0012] According to some embodiments of the application, the electric eye shell is sleeved on the inductive circuit board.

[0013] According to some embodiments of the application, the inductive device further comprises a mounting base, one end of the electric eye shell is fixedly installed on the mounting base, and one end of the mounting base is provided with a water outlet nozzle.

[0014] According to some embodiments of the application, one end of the mounting base is provided with a positioning slot, and the electric eye shell is inserted and installed in the positioning slot.

[0015] According to some embodiments of the application, the electric eye shell is fixedly connected to the mounting base through bolts.

[0016] According to some embodiments of the application, the bottom wall of the positioning slot is provided with a wire hole, and the wire hole is used for allowing a cable electrically connected to the inductive circuit board to pass through.

[0017] According to a second aspect of the application, a faucet comprises the inductive device.

[0018] The faucet can realize automatic water outlet by the induction device, wherein the induction device can effectively reduce the interference of external light, so that the induction device can stably and normally work, and the correctness of the induction result is ensured.

[0019] Additional aspects and advantages of the present application will be described in the following description, become apparent from it, or be learned from the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0020] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0021] Figure 1 is a sectional view of the light interference prevention induction device of the present application embodiment;

[0022] Figure 2 is Figure 1 is an exploded view (internal section) of the light interference prevention induction device shown;

[0023] Figure 3 is Figure 1 is an exploded view (external) of the light interference prevention induction device shown;

[0024] Figure 4 is provided with Figure 1 is a schematic view of the faucet with the light interference prevention induction device shown.

[0025] LIST OF REFERENCE NUMERALS

[0026] Induction circuit board 110, transmitting element 111, receiving element 112, electric eye pipe base 120, first slot 121, transmitting hole 122, second slot 123, receiving hole 124, polarized light filter 130, electric eye shell 140, mounting seat 150, positioning slot 151, wire passing hole 152, sealing structure 153, water outlet nozzle 160, faucet body 200, faucet shell 210, water outlet pipe 220. DETAILED DESCRIPTION

[0027] The embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the present application, and cannot be understood as limiting the present application.

[0028] In the description of the utility model, if the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceed and the like are understood as not including the number, above, below, within and the like are understood as including the number. If the first and second are described, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0029] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection and the like should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0030] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection and the like should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0031] Referring to Figures 1 to 3 , the utility model discloses a kind of induction devices of light interference prevention, including induction circuit board 110, electric eye pipe base 120 and two polarized filters 130, induction circuit board 110 is provided with for emitting sensing light emitting element 111 and for receiving sensing light receiving element 112;Electric eye pipe base 120 towards the surface of induction circuit board 110 is provided with first slot 121 and second slot 123, the bottom wall of first slot 121 is provided with emitting hole 122, the bottom wall of second slot 123 is provided with receiving hole 124, the aperture of receiving hole 124 is less than or equal to 2.5mm, wherein, emitting element 111 is inserted in first slot 121, receiving element 112 is inserted in second slot 123, wherein, the emitting direction of emitting element 111 is along the axis of emitting hole 122, the receiving direction of receiving element 112 is along the axis of receiving hole 124, the emitting direction of emitting element 111 is set with the receiving direction of receiving element 112 Acute angle, that is, the axis of emitting hole 122 is set with the axis of receiving hole 124 Acute angle;One of two polarized filters 130 is set at emitting hole 122, and the other is set at receiving hole 124.

[0032] The inductive device is characterized in that the emitting hole 122 and the receiving hole 124 are arranged at an acute angle, so as to limit the interference light at other angles from entering the receiving hole 124, meanwhile, the aperture of the receiving hole 124 is designed as a small hole smaller than or equal to 2.5 mm, so as to reduce the amount of the interference light, and the interference light is filtered through the polarized filter 130, through the above three steps, the receiving element 112 can basically only receive the emitted signal, and the interference light is almost removed, thereby, the interference of the external light can be effectively reduced, the inductive device can be stably and normally operated, and the correctness of the inductive result is ensured.

[0033] With reference to Figure 1 According to some embodiments of the present application, the included angle between the axis of the emitting hole 122 and the axis of the receiving hole 124 can be 28 degrees.

[0034] Of course, in other embodiments, the included angle between the axis of the emitting hole 122 and the axis of the receiving hole 124 can also be 30 degrees or 25 degrees.

[0035] According to some embodiments of the present application, the aperture of the receiving hole 124 is 2 mm. Of course, in other embodiments, the aperture of the receiving hole 124 can also be 2.2 mm or 1.8 mm. Wherein, the larger the aperture of the receiving hole 124, the larger the range of the received signal, but the influence of the external light interference will increase, the smaller the aperture of the receiving hole 124, the smaller the influence of the external light interference, but the range of the received signal is smaller, in the specific implementation process, the technical personnel in the art can appropriately increase or decrease the aperture size of the receiving hole 124 according to the needs of different models of the faucet in different application scenarios.

[0036] With reference to Figures 1 to 3 According to some embodiments of the present application, the inductive device further comprises an electric eye shell 140, the electric eye shell 140 is sleeved on the electric eye pipe base 120, the polarized filter 130 is located between the electric eye shell 140 and the electric eye pipe base 120, and the electric eye shell 140 and the electric eye pipe base 120 cooperatively clamp and fix the polarized filter 130. Through the above arrangement, the installation of the polarized filter 130 can be facilitated.

[0037] With reference to Figures 1 to 3 According to some embodiments of the present application, the electric eye shell 140 is sleeved on the inductive circuit board 110. Thus, the installation of the inductive circuit board 110 can be facilitated.

[0038] With reference to Figures 1 to 3 According to some embodiments of the present application, the inductive device further comprises a mounting seat 150, the electric eye shell 140 is fixedly installed on one end of the mounting seat 150, and a water outlet nozzle 160 is installed on one end of the mounting seat 150.

[0039] With reference toFigure 4 In the specific implementation process, the faucet generally comprises a faucet body 200, the faucet body 200 comprises a faucet shell 210, a water outlet pipe 220 is arranged in the faucet shell 210, and after the water outlet pipe 220 is connected with the water outlet nozzle 160, the fixing seat 150 only needs to be fixed at the water outlet end of the faucet shell 210, so that the fixing of the water outlet nozzle 160 and the induction circuit board 110 is completed, and the installation is convenient and simple. In addition, during the use of the faucet, since the water outlet nozzle 160 and the induction circuit board 110 are installed at one place, the induction device can only induct the human body when the hand of a person is stretched to the position opposite to the water outlet nozzle 160, so that the faucet is prevented from automatically discharging water when the hand of the human body is not stretched to the position opposite to the water outlet nozzle 160, and the induction accuracy is improved. The electric eye shell 140 can pass the inductive light emitted by the emitting element 111, the fixing seat 150 and the electric eye shell 140 are used to enclose and protect the induction circuit board 110, and the elements in the induction circuit board 110 are prevented from being affected by water vapor.

[0040] With reference to Figures 1 to 3 According to some embodiments of the present application, one end of the fixing seat 150 is provided with a positioning slot 151, and the electric eye shell 140 is inserted into the positioning slot 151, so that the electric eye shell 140 can be positioned by the positioning slot 151, and the installation position of the electric eye shell 140 on the fixing seat 150 is more accurate.

[0041] With reference to Figure 3 According to some embodiments of the present application, the electric eye shell 140 is fixedly connected to the fixing seat 150 by bolts, so that the electric eye shell 140 can be firmly fixed to the fixing seat 150, and the electric eye shell 140 is detachable.

[0042] In some other embodiments, the electric eye shell 140 can also be clamped to the fixing seat 150 by a buckle, so that the installation of the electric eye shell 140 is facilitated.

[0043] With reference to Figures 1 to 3 According to some embodiments of the present application, the bottom wall of the positioning slot 151 is provided with a wire passing hole 152, and the wire passing hole 152 is used for the cable electrically connected to the induction circuit board 110 to pass through. Through the above arrangement, the wire passing hole 152 can be used for the cable connected to the induction circuit board 110 to pass through and limit the shaking range of the cable. The wire passing hole 152 is provided with a sealing structure 153, and the sealing structure 153 is used for sealing between the cable and the fixing seat 150.

[0044] In the specific implementation process, in order to facilitate installation, the induction circuit board 110 and the cable can be quickly plugged through a quick plug terminal.

[0045] With reference to Figure 4According to the second aspect of the utility model discloses a faucet, including above-mentioned a kind of light interference prevention sensing device. Faucet can be inducted human body by above-mentioned sensing device to realize automatic water outlet, wherein, above-mentioned sensing device can effectively reduce the interference of external light, so that sensing device can be stable, normal work, guarantee the correctness of sensing result.

[0046] With reference to Figure 4 In the specific implementation process, the faucet includes a faucet body 200, a control box, a water valve, a main control circuit board are arranged in the control box, the main control circuit board is electrically connected with the water valve and the sensing circuit board 110, one end of the water valve is connected with the water inlet pipe, the other end is connected with the water outlet pipe 220 in the faucet body 200, the sensing device is arranged on the water outlet end of the faucet body 200, wherein the water outlet pipe 220 is connected with the water outlet nozzle 160 on the sensing device. Therefore, the main control circuit board can control the opening and closing of the water valve according to the signal fed back by the sensing device, so as to realize the automatic water outlet of the faucet body 200.

[0047] Of course, in other embodiments, when the faucet body 200 has sufficient installation space, the water valve, the main control circuit board and the like can also be directly built-in in the faucet body 200.

[0048] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, but as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0049] The utility model embodiments are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range of ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. A light interference-resistant sensing device, characterized in that, include: The sensing circuit board (110) is provided with an emitting element (111) for emitting sensing light and a receiving element (112) for receiving sensing light; The photoelectric sensor socket (120) has a first slot (121) and a second slot (123) on its surface facing the sensing circuit board (110). The bottom wall of the first slot (121) has a transmitting hole (122), and the bottom wall of the second slot (123) has a receiving hole (124). The diameter of the receiving hole (124) is less than or equal to 2.5 mm. The transmitting element (111) is inserted into the first slot (121), and the receiving element (112) is inserted into the second slot (123). The transmitting direction of the transmitting element (111) is along the axis of the transmitting hole (122), and the receiving direction of the receiving element (112) is along the axis of the receiving hole (124). The axis of the transmitting hole (122) and the axis of the receiving hole (124) are set at an acute angle. Two polarizing filters (130) are provided, one of which is disposed at the emission aperture (122) and the other is disposed at the receiving aperture (124).

2. The light interference prevention sensing device according to claim 1, characterized in that, The angle between the axis of the transmitting hole (122) and the axis of the receiving hole (124) is set to 28 degrees.

3. The light interference prevention sensing device according to claim 1, characterized in that, The diameter of the receiving hole (124) is set to 2 mm.

4. The light interference prevention sensing device according to claim 1, characterized in that, It also includes a photocell housing (140), which is sleeved on the photocell tube seat (120). The polarizing filter (130) is located between the photocell housing (140) and the photocell tube seat (120). The photocell housing (140) and the photocell tube seat (120) cooperate with each other to clamp and fix the polarizing filter (130).

5. The light interference prevention sensing device according to claim 4, characterized in that, The photocell housing (140) is fitted onto the sensing circuit board (110).

6. The light interference prevention sensing device according to claim 5, characterized in that, It also includes a mounting base (150), the photoelectric sensor housing (140) is fixedly mounted on one end of the mounting base (150), and a water outlet (160) is mounted on one end of the mounting base (150).

7. The light interference prevention sensing device according to claim 6, characterized in that, The mounting base (150) has a positioning slot (151) at one end, and the photoelectric sensor housing (140) is inserted into the positioning slot (151).

8. The light interference prevention sensing device according to claim 7, characterized in that, The photocell housing (140) is fixedly connected to the mounting base (150) by bolts.

9. The light interference prevention sensing device according to claim 7, characterized in that, The bottom wall of the positioning slot (151) has a wire hole (152) for the cable electrically connected to the sensing circuit board (110) to pass through.

10. A faucet, characterized in that, Including a light interference protection sensing device as described in any one of claims 1 to 9.

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