CN215489209U

CN215489209U - Lamp assembled with pyroelectric infrared sensor

Info

Publication number: CN215489209U
Application number: CN202120963238.XU
Authority: CN
Inventors: 沈金火; 陈国林; 吴勇杰; 林锡滨; 吴士章
Original assignee: Xiamen Topstar Lighting Co Ltd
Current assignee: Xiamen Topstar Lighting Co Ltd
Priority date: 2021-05-07
Filing date: 2021-05-07
Publication date: 2022-01-11
Anticipated expiration: 2031-05-07

Abstract

A lamp with a pyroelectric infrared sensor is assembled, wherein a PC lens is made of VO (vacuum) one-level flame-retardant materials, when a human body infrared sensing module is installed on the PC lens, only a non-charged body part of an inductive probe is exposed out of the PC lens from an inductive window arranged on the PC lens, and a charged body part, a driving plate and a photosensitive diode of the inductive probe are all shielded below the PC lens by the PC lens. A PC mounting fixed mounting is in the response window below of PC lens, and an elastic silica gel circle tight fit is between pyroelectric infrared sensor's inductive probe and PC lens, and when this elastic silica gel circle cover was established on pyroelectric infrared sensor, this elastic silica gel circle was exposed from the elastic window that elastic silica gel circle was equipped with to inductive probe's non-electrified body part. The lamp can meet the outdoor waterproof requirement, and the problem that a non-isolated power supply scheme cannot be adopted in a driving scheme for supplying power to the lamp due to the fact that the lamp cannot meet the UL (UL) regulation certification requirement is completely solved.

Description

Lamp assembled with pyroelectric infrared sensor

Technical Field

The utility model belongs to the technical field of lamp illumination production, and particularly relates to an assembly structure of a pyroelectric infrared sensor on an outer lens.

Background

At present, in the lighting industry, a lamp with a pyroelectric infrared sensor is provided with a PC lens on a main body shell of the lamp. The pyroelectric infrared sensor is arranged on the PC lens, and an infrared Fresnel lens is arranged on the upper cover of the PC lens corresponding to the installation position of the pyroelectric infrared sensor. The infrared Fresnel lens is made of PE materials, and the infrared Fresnel lens made of the PE materials cannot meet the yellow card standard of UL regulations in the whole lighting industry at present, so that the whole lamp cannot meet the certification requirements of the UL regulations. Therefore, currently, an isolated power supply scheme is always adopted in the power supply driving scheme of the lamp with the pyroelectric infrared sensor in the whole lighting industry, so that the pyroelectric infrared sensor of the lamp with the pyroelectric infrared sensor meets the LVLE requirement (UL legislation approved safe low voltage), and the lamp with the pyroelectric infrared sensor meets the UL legislation certification requirement on the whole. The cost of the isolation power supply scheme is high, and the problem that the infrared Fresnel lens cannot reach the standard of a yellow card of a UL (UL) regulation is solved all the time, so that the price of the illumination product with the pyroelectric infrared sensor on the market is high.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides a lamp assembled with a pyroelectric infrared sensor, which can meet the outdoor use condition and achieve the excellent waterproof purpose; the problem that a non-isolated power supply scheme cannot be adopted in a driving scheme for supplying power to the lamp due to the fact that the lamp cannot meet UL (UL) regulation certification requirements is completely solved.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a lamp with a pyroelectric infrared sensor is assembled, and comprises a main body shell, a PC lens, a human body infrared sensing module, a PC fixing piece, an elastic silica gel ring and an infrared Fresnel lens; the human body infrared sensing module comprises a pyroelectric infrared sensor and a photosensitive diode which are fixedly arranged on the driving board;

the pyroelectric infrared sensor is characterized in that an induction probe of the pyroelectric infrared sensor is provided with a non-charged body part positioned in the middle of the induction probe; the part of the induction probe except the part with the charged body is the part with the charged body;

the PC lens is made of a VO primary flame-retardant material and is covered on the main body shell; the PC lens is provided with an induction window with the shape and the size corresponding to the shape and the size of the non-charged part of the induction probe of the pyroelectric infrared sensor; when the human body infrared sensing module is installed on the PC lens, only the non-charged body part is exposed out of the PC lens from the sensing window, and the charged body part, the driving plate and the photosensitive diode of the sensing probe are all shielded below the PC lens by the PC lens;

the driving plate is provided with a plurality of limiting holes;

the PC fixing piece is provided with a plurality of buckles, and the buckles are arranged corresponding to the limiting holes in the driving plate so that the PC fixing piece is fixedly arranged below the sensing window of the PC lens; the elastic silica gel ring is made of a VO primary flame-retardant material and is tightly matched between an induction probe of the pyroelectric infrared sensor and the PC lens; an elastic window is arranged on the elastic silica gel ring, and when the elastic silica gel ring is sleeved on an induction probe of the pyroelectric infrared sensor, a non-charged body part of the induction probe is exposed out of the elastic silica gel ring from the elastic window).

According to the lamp provided with the pyroelectric infrared sensor, the non-charged part of the induction probe of the pyroelectric infrared sensor is made of glass.

The lamp provided with the pyroelectric infrared sensor is characterized in that the PC fixing piece is welded on the PC lens through ultrasonic waves.

The technical scheme provided by the above has the following beneficial effects:

firstly, on the basis that the prior art cannot reach the infrared Fresnel lens of the yellow card standard of the UL regulation, the lamp provided by the utility model has the advantages that through the structural design of the PC lens, the human body infrared sensing module and the PC fixing piece, the charged part of the human body infrared sensing module is completely wrapped by the lens material of the yellow card standard of the UL regulation, only the non-charged part of the pyroelectric infrared sensor is exposed, and under the condition that the charged part of the human body infrared sensing module is completely covered by the PC lens of the yellow card standard of the UL regulation, the non-isolation scheme can be adopted to supply power to the human body infrared sensing module, so that the pain point that the non-isolation scheme cannot be adopted due to the authentication problem in the industry is completely solved.

Secondly, the lamp is matched with an outdoor product, and an elastic silica gel ring is additionally arranged between the induction probe of the pyroelectric infrared sensor and the PC lens, so that the excellent waterproof purpose is achieved, and the outdoor use requirement is met.

Thirdly, the photosensitive diode also belongs to a charged body, and is covered and wrapped by the transparent PC lens, so that the photosensitive diode can continuously play the functions and simultaneously meet the requirement of UL (UL) regulation safety certification.

Fourthly, the PC fixing piece and the PC lens are welded through ultrasonic waves, the human body infrared sensing module is fixed, and the PC fixing piece is made of shading materials and also has the function of shielding the influence of the self-luminescence of the whole lamp on the photosensitivity.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic view of the overall structure of a lamp incorporating a pyroelectric infrared sensor according to the present invention;

FIG. 2 is a schematic perspective exploded view of a lamp incorporating a pyroelectric infrared sensor according to the present invention;

FIG. 3 is a schematic diagram of a second three-dimensional exploded structure of a lamp with a pyroelectric infrared sensor according to the present invention;

FIG. 4 is a schematic cross-sectional view of a lamp incorporating a pyroelectric infrared sensor according to the present invention;

FIG. 5 is an enlarged view of the portion A of FIG. 4;

FIG. 6 is a schematic structural diagram of the human body infrared sensing module of the present invention;

FIG. 7 is a schematic diagram of the structure of the PC lens of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

In the claims, the specification and the drawings of the present invention, unless otherwise expressly limited, the terms "first", "second" or "third", etc. are used for distinguishing between different items and not for describing a particular sequence.

In the claims, the specification and the drawings of the present invention, unless otherwise expressly limited, all directional or positional relationships indicated by the terms "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," "counterclockwise," and the like are based on the directional or positional relationships indicated in the drawings and are used for convenience in describing the present invention and for simplicity in description, but do not indicate or imply that the device or element so indicated must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the present invention.

In the claims, the description and the drawings of the present application, unless otherwise expressly limited, the terms "fixedly connected" or "fixedly connected" should be interpreted broadly, that is, any connection between the two that does not have a relative rotational or translational relationship, that is, non-detachably fixed, integrally connected, and fixedly connected by other devices or elements.

In the claims, the specification and the drawings of the present invention, the terms "including", "having" and their variants, if used, are intended to be inclusive and not limiting.

Referring to fig. 1 to 7, a lamp with a pyroelectric infrared sensor assembled therein according to the present invention is described, which includes a main body housing 100, a PC lens 200, a human body infrared sensing module 300, a PC fixing member 400, an elastic silica gel ring 500, and an infrared fresnel lens 600.

Referring to fig. 6, the human body infrared sensing module 300 of the present invention includes a pyroelectric infrared sensor 310, a photodiode 320 and a driving board 330, wherein the pyroelectric infrared sensor 310 and the photodiode 320 are respectively mounted and fixed on the driving board 330.

The sensing probe 311 of the pyroelectric infrared sensor 310 of the present invention is provided with a non-charged body portion 311A located at the middle of the sensing probe 311. Specifically, the sensing probe 311 of the pyroelectric infrared sensor 310 is composed of a non-charged body portion 311A and a charged body portion 311B, the non-charged body portion 311A is located at the middle position of the sensing probe 311, and the non-charged body portion 311A is made of glass. Specifically, in the present embodiment, the non-charged body portion 311A of the sensing probe 311 of the pyroelectric infrared sensor 310 is a rectangular parallelepiped glass located at the middle position of the sensing probe 311. The portion of the inductive probe 311 other than the non-charged body portion 311A is a charged body portion 311B.

Referring to fig. 7, the PC lens 200 of the present invention is covered on the main body case 100. The PC lens 200 is a PC lens made of a VO primary flame-retardant material. The PC lens 200 is provided with an inductive window 210, and the inductive window 210 is a through hole. The shape and size of the sensing window 210 are set corresponding to the shape and size of the non-charged part 311A of the sensing probe 311 of the pyroelectric infrared sensor 310, when the human body infrared sensing module 300 is mounted on the PC lens 200 through the PC fixing member 400, only the non-charged part 311A of the sensing probe 311 is exposed out of the PC lens 200 from the sensing window 210, and the charged part 311B of the sensing probe 311, the driving board 330 and the photodiode 320 are all shielded under the PC lens 200 by the PC lens 200. Therefore, under the condition that the part of the human body infrared sensing module 200 except the non-charged body part 311A is completely covered by the PC lens 200 made of the VO primary flame retardant material, the power supply driving scheme of the lamp can adopt a non-isolated power supply scheme to supply power to the human body infrared sensing module 300, and the pain point that the non-isolated power supply scheme cannot be adopted due to the UL certification requirement in the industry is completely solved. And the photodiode 320 shielded by the PC lens 200 made of VO primary flame retardant material, because the photodiode 320 also belongs to a charged body, and is wrapped by the transparent PC lens 200, the photodiode 320 can be ensured to continue to play the function, and simultaneously, the UL regulation safety requirement (the golden finger of the UL regulation safety requirement is not allowed to touch the charged body) is solved.

The driving plate 330 of the present invention is provided with a plurality of limiting holes 331. A flat cable 700 connects the driving board 300 and the main driving power supply to supply power to the human body infrared sensing module 300.

The PC fixing member 400 of the present invention is provided with a plurality of fasteners 410, and the fasteners 410 are disposed corresponding to the plurality of limiting holes 331 of the driving plate 330. The human body infrared sensing module 300 is fixed on the PC fixing member 400 by the plurality of buckles 331 being correspondingly clamped on the plurality of limiting holes 410. The PC fixing member 400 is fixedly installed below the sensing window 210 of the PC lens 200. Specifically, the PC fixing member 400 is welded to the PC lens 200 by ultrasonic waves, and the PC fixing member 400 and the PC lens are welded by ultrasonic waves, so that the PC fixing member 400 not only serves to fix the human body infrared sensing module 300, but also serves to shield the influence of the self-luminescence of the whole lamp on the photosensitivity because the PC fixing member 400 is also a light-shielding material.

The elastic silica gel ring 500 is made of a VO primary flame-retardant material. The elastic silicone rubber ring 500 is tightly fitted between the inductive probe 311 of the pyroelectric infrared sensor 310 and the PC lens 200. Specifically, the elastic silicone ring 500 is sleeved on the sensing probe 311 of the pyroelectric infrared sensor 310, and the elastic silicone ring 500 is provided with an elastic window 510, when the elastic silicone ring 500 is sleeved on the sensing probe 311 of the pyroelectric infrared sensor 310, the shape and size of the elastic window 510 are matched with the shape and size of the non-charged body portion 311A of the sensing probe 311 of the pyroelectric infrared sensor 310, so that the non-charged body portion 311A of the sensing probe 311 exposes the elastic silicone ring 500 from the elastic window 510, and then exposes the PC lens 200. Preferably, when the elastic silicone rubber ring 500 is sleeved on the sensing probe 311 of the pyroelectric infrared sensor 310, the shape and size of the elastic window 510 are the same as those of the non-charged body portion 311A of the sensing probe 311 of the pyroelectric infrared sensor 310. When the human body infrared sensing module 300 is buckled and pressed on the PC fixing piece 400, the elastic silica gel ring 500 tightly matched between the sensing probe 311 of the pyroelectric infrared sensor 310 and the PC lens 200 achieves an excellent waterproof purpose so as to meet the requirements of outdoor use.

While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the utility model is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. A lamp assembled with a pyroelectric infrared sensor is characterized by comprising a main body shell (100), a PC lens (200), a human body infrared sensing module (300), a PC fixing piece (400), an elastic silica gel ring (500) and an infrared Fresnel lens (600); wherein the content of the first and second substances,

the human body infrared sensing module (300) comprises a driving board (330), and a pyroelectric infrared sensor (310) and a photosensitive diode (320) which are fixedly arranged on the driving board (330);

the pyroelectric infrared sensor (310) is characterized in that an induction probe (311) of the pyroelectric infrared sensor (310) is provided with a non-charged body part (311A) positioned in the middle of the induction probe (311); the part of the induction probe (311) except the non-charged body part (311A) is a charged body part (311B);

the PC lens (200) is made of a VO (vanadium oxide) primary flame-retardant material, and is covered on the main body shell (100); the PC lens (200) is provided with an induction window (210) with the shape and the size corresponding to the shape and the size of a non-charged body part (311A) of an induction probe (311) of the pyroelectric infrared sensor (310); when the human body infrared sensing module (300) is installed on the PC lens (200), only the non-charged body part (311A) exposes the PC lens (200) from the sensing window (210), and the charged body part (311B), the driving board (330) and the photosensitive diode (320) of the sensing probe (311) are all shielded under the PC lens (200) by the PC lens (200);

the driving plate (330) is provided with a plurality of limiting holes (331);

the PC fixing piece (400), a plurality of buckles (410) are arranged on the PC fixing piece (400), the buckles (410) are arranged corresponding to a plurality of limiting holes (331) on the driving plate (330), so that the PC fixing piece (400) is fixedly arranged below the sensing window (210) of the PC lens (200);

the elastic silica gel ring (500) is made of a VO primary flame-retardant material, and the elastic silica gel ring (500) is tightly matched between an induction probe (311) of the pyroelectric infrared sensor (310) and the PC lens (200); the elastic silica gel ring (500) is provided with an elastic window (510), and when the elastic silica gel ring (500) is sleeved on an inductive probe (311) of the pyroelectric infrared sensor (310), a non-charged body part (311A) of the inductive probe (311) is exposed out of the elastic silica gel ring (500) from the elastic window (510).

2. The lamp set with the pyroelectric infrared sensor as claimed in claim 1, wherein the non-charged body part (311A) of the sensing probe (311) of the pyroelectric infrared sensor (310) is made of glass.

3. A lamp incorporating a pyroelectric infrared sensor as claimed in claim 1 or 2 wherein said PC fixing member (400) is ultrasonically welded to the PC lens (200).