Inductor and induction faucet

Abstract

The inductor comprises an induction module and a shell, the induction module is arranged in the shell, the shell is provided with an induction window, and the induction module is provided with a light emitting part and a light receiving part corresponding to the induction window of the shell; the induction window further comprises a light conductor which is arranged between the light emitting part and the induction window, so that light emitted by the light emitting part is totally reflected and conducted to the induction window through the light conductor. According to the utility model, the self-excitation phenomenon caused by the large distance and / or inclination angle between the light emitting part and the induction window of the shell can be greatly improved by using the light conductor, and the light loss of the light emitted by the light emitting part in the propagation process between the induction module and the induction window can be greatly reduced by using the light conductor.

Description

TECHNICAL FIELD

[0001] The utility model relates to induction technology field especially relates to an inductor and induction tap. BACKGROUND

[0002] The inductor is very popular in the application of bathroom sanitary wares, and the bathroom sanitary wares mainly include induction taps, intelligent closestools and other equipment, these equipment realizes intelligent control through the inductor, has the advantages such as hygiene, water saving and convenience. The inductor of prior art, for example infrared inductor, is through emitting infrared rays outward, is shielded by human body part, and reflects back, reaches the purpose of control. At present, the inductor of prior art generally has the following disadvantages: the spacing between the emitting part of the inductor and the shell cannot be too large, too large will cause self-excitation, so that the inductive module of the inductor and the shell cannot have a large inclination angle. Therefore, the spacing and inclination angle between the emitting part of the inductor and the shell have important influence on its performance, but the accurate control of these parameters has great difficulty. SUMMARY

[0003] The utility model provides an inductor and induction tap in view of the technical problem of prior art, and the self-excitation phenomenon caused by the structure of the inductor itself can be improved.

[0004] The utility model adopts the technical scheme that an inductor comprises an inductive module and a shell, the inductive module is arranged in the shell, the shell is provided with an induction window, the inductive module is provided with a light emitting part and a light receiving part corresponding to the induction window of the shell, and further comprises a light conductor arranged between the light emitting part and the induction window, so that the light emitted by the light emitting part is totally reflected and conducted to the induction window through the light conductor.

[0005] In a preferred embodiment, the shell is provided with a light-tight sleeve, the inductive module is arranged in the light-tight sleeve, the light-tight sleeve is provided with an emitting hole matched with the light emitting part corresponding to the light receiving part, and the light-tight sleeve is provided with a receiving hole matched with the light receiving part.

[0006] In a preferred embodiment, the light conductor is arranged in the emitting hole.

[0007] In a preferred embodiment, the light conductor is in interference fit with the emitting hole.

[0008] In a preferred embodiment, the central axis of the light conductor coincides with the central axis of the light emitting part.

[0009] In a preferred embodiment, the light conductor is one of a fiber optic conductor, a TIR prism, a light waveguide and an ODR total reflection mirror.

[0010] In a preferred embodiment, the light transmitter is arranged at the axial direction of the light emitting part and the sensing window.

[0011] In a preferred embodiment, the sensing module comprises a circuit board, and the light emitting part and the light receiving part are arranged on the circuit board.

[0012] In a preferred embodiment, the sensing module is an infrared sensing module or a laser sensing module.

[0013] The utility model further provides a kind of induction faucet, including faucet body, further include the inductor as described above in the utility model, the inductor is arranged in faucet body.

[0014] Compared with prior art, the utility model has the following beneficial effects:

[0015] 1, since the utility model is arranged between light emitting part and sensing window Light transmitter, the light emitted by light emitting part is totally reflected and conducted to sensing window by light transmitter, therefore, the utility model can utilize light transmitter to greatly improve the self-excitation phenomenon caused by large spacing and / or inclination angle between light emitting part and the sensing window of shell, also can utilize light transmitter to greatly reduce the light loss of light emitted by light emitting part during propagation between sensing module and sensing window.

[0016] 2, the utility model further sets up light isolation sleeve, can optimize optical path, further reduce light loss, also can prevent external stray light interference, improve the detection accuracy of inductor, and can protect sensing module, prevent dust, moisture or other dirt from entering sensing module, so as to be favorable for prolonging the service life of sensing module.

[0017] 3, as a kind of preferred, the utility model sets up light transmitter in the emitting hole, can utilize emitting hole to position light transmitter, ensure that light transmitter is stably kept on the light emission path of light emitting part.

[0018] The utility model is further described in detail in combination with drawings and embodiments; but a kind of inductor and induction faucet of the utility model are not limited to embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the exploded schematic view of the utility model;

[0020] In the drawing, 1, sensing module; 11, light emitting part; 12, light receiving part; 13, circuit board; 2, shell; 21, sensing window; 3, light transmitter; 4, light isolation sleeve; 41, emitting hole; 42, receiving hole. DETAILED DESCRIPTION

[0021] Please see Figure 1As shown in the utility model, a kind of inductor, including induction module 1 and shell 2, induction module 1 is arranged in shell 2, shell 2 is equipped with induction window 21, induction module 1 is equipped with light emitting portion 11 and light receiving portion 12 corresponding the induction window 21 of shell 2, induction module 1 further include circuit board 13, light emitting portion 11 and light receiving portion 12 are respectively arranged on circuit board 13, in the embodiment, induction module 1 is infrared induction module or laser induction module, but not limited to this.The utility model further includes light transmitter 3, the light transmitter is arranged between light emitting portion 11 and induction window 21, so that light emitted by light emitting portion 11 is totally reflected and conducted to induction window 21 by light transmitter 3, so as to improve the self-excitation phenomenon caused by large spacing and / or inclination angle between light emitting portion 11 and the induction window 21 of shell 2, and reduce the light loss of light emitted by light emitting portion 11 during propagation between induction module 1 and induction window 21.

[0022] The utility model further includes light-tight light barrier 4, the light barrier 4 is equipped in shell 2, induction module 1 is placed in light barrier 4, light barrier 4 is equipped with the emission hole 41 of adaptation to light emitting portion 11 corresponding light emitting portion 11, light barrier 4 is equipped with the receiving hole 42 of adaptation to light receiving portion 12 corresponding light receiving portion 12.Light barrier 4 is roughly same with the structure of shell 2, both are equipped with four circumferential wall and main wall arranged at one end of four circumferential wall, the four circumferential wall and main wall of light barrier 4 are combined to form the accommodating cavity of induction module 1, and the main wall of light barrier 4 is equipped with the above-mentioned emission hole 41 and receiving hole 42.The main wall of shell 2 is equipped with the above-mentioned induction window 21.

[0023] As a preferred mode, light transmitter 3 is arranged in emission hole 41 to position light transmitter 3 using emission hole 41 and ensure that light transmitter 3 is stably maintained on the light exit path of light emitting portion 11.Specifically, light transmitter 3 is interference fit with emission hole 41, but not limited to this, in other embodiments, the radial dimension of light transmitter 3 is smaller than the inner diameter dimension of emission hole 41, and adhesive is filled between light transmitter 3 and emission hole 41 to fix light transmitter 3 using the adhesive.Light transmitter 3 abuts against light emitting portion 11 and induction window 21 at its two ends in the axial direction, so that there is no gap or substantially no gap between light emitting portion 11 and light transmitter 3, and between light transmitter 3 and induction window 21, thereby further ensuring the accuracy of light transmission direction and reducing light loss.

[0024] The central axis of light transmitter 3 coincides with the central axis of light emitting portion 11, but not limited to this, in other embodiments, the central axis of light transmitter 3 can be offset from the central axis of light emitting portion 11 by a certain distance.Light transmitter 3 is preferably an optical fiber transmitter, but not limited to this, in other embodiments, light transmitter 3 is a TIR prism or an optical waveguide or an ODR total reflection mirror, etc.

[0025] In the embodiment, the front end of the shell 2 is provided with the induction window 21, and the rear end is provided with an opening, when assembled, the induction module 1 is first assembled into the light isolation sleeve 4, the light emitting part 11 is aligned with the emitting hole 41, the light receiving part 12 is aligned with the receiving hole 42, and the light conductor 3 is arranged in the emitting hole 41 of the light isolation sleeve 4; then the light isolation sleeve 4 is arranged in the shell 2 from the rear end opening of the shell 2, and the side of the light isolation sleeve 4 provided with the emitting hole 41 and the receiving hole 42 is attached to the inner side of the induction window 21 of the shell 2. The rear end opening of the shell 2 can be sealed by a side cover.

[0026] The light emitted by the light emitting part 11 is totally reflected and converged by the light conductor 3 and then emitted from the induction window 21, so that the accuracy of the light emitting direction is ensured, and the light is prevented from being misreflected in the shell 2 and misreceived by the light receiving part 12.

[0027] The induction sensor can be used for bathroom sanitary wares, such as faucets, toilets and the like.

[0028] The induction sensor can be used for bathroom sanitary wares, such as faucets, toilets and the like.

[0029] The induction sensor and the induction faucet of the utility model are not involved in the part same as the prior art or can be realized by using the prior art.

[0030] The above embodiment is only used to further illustrate the induction sensor and the induction faucet of the utility model, but the utility model is not limited to the embodiment, and any simple modification, equivalent change and modification according to the technical essence of the utility model of the above embodiment all fall within the protection scope of the technical scheme of the utility model.

Claims

1. An inductor, comprising an inductor module and a housing, the inductor module being arranged in the housing, the housing being provided with an inductor window, the inductor module being provided with a light emitting part and a light receiving part corresponding to the inductor window of the housing; characterized in that: The light transmitter is further provided with a light conductor arranged between the light emitting part and the sensing window, so that the light emitted by the light emitting part is totally reflected by the light conductor and transmitted to the sensing window.

2. The inductor of claim 1, wherein: The shell is provided with a lightproof sleeve, the sensing module is arranged in the lightproof sleeve, the lightproof sleeve is provided with an emitting hole corresponding to the light emitting part and adapted to the light emitting part, and the lightproof sleeve is provided with a receiving hole corresponding to the light receiving part and adapted to the light receiving part.

3. The inductor of claim 2, wherein: The light conductor is arranged in the emitting hole.

4. The inductor of claim 3, wherein: The light conductor is in interference fit with the emitting hole.

5. The inductor of claim 1, wherein: The central axis of the light conductor coincides with the central axis of the light emitting part.

6. The inductor of claim 1, wherein: The light conductor is one of a fiber conductor, a TIR prism, a light waveguide and an ODR total reflection mirror.

7. The inductor of claim 1, wherein: The light conductor is arranged in abutment with the light emitting part and the sensing window at two ends thereof in the axial direction.

8. The inductor of claim 1, wherein: The sensing module comprises a circuit board, and the light emitting part and the light receiving part are arranged on the circuit board.

9. The inductor of claim 1, wherein: The sensing module is an infrared sensing module or a laser sensing module.

10. An induction faucet comprising a faucet body, characterized by: The faucet body is further provided with the sensor according to any one of claims 1-9.

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