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CN-224216897-U - Double PIR lens structure applied to doorbell

CN224216897UCN 224216897 UCN224216897 UCN 224216897UCN-224216897-U

Abstract

The utility model belongs to the technical field of smart home, and discloses a double PIR lens structure applied to a doorbell, which comprises a lens main body and lens body parts, wherein both ends of the lens main body are provided with arc bending parts, the lens body parts are provided with two lens body parts, the two lens body parts are arranged at the left side and the right side of the lens main body, one end of the lens body part, which is far away from the center of the lens main body, is arranged on the arc bending parts, one lens body part focuses on the sensing position of one PIR sensor of the doorbell, and the other lens body part focuses on the sensing position of the other PIR sensor of the doorbell.

Inventors

  • REN CHENGWEI
  • ZHANG ZUQIAN
  • LIU CHEN

Assignees

  • 天津爱仕凯睿科技发展有限公司

Dates

Publication Date
20260508
Application Date
20250716

Claims (6)

  1. 1. The utility model provides a two PIR lens structure of using on doorbell, its characterized in that, including lens main part (1) and mirror body portion (2), the both ends of lens main part (1) all are provided with arc portion of bending (103), mirror body portion (2) are provided with two, two mirror body portion (2) set up the left and right sides of lens main part (1), one end that mirror body portion (2) kept away from lens main part (1) center sets up on arc portion of bending (103), one of them mirror body portion (2) focus in the inductive position of one of them PIR sensor of doorbell, another mirror body portion (2) focus in the inductive position of another PIR sensor of doorbell.
  2. 2. The double PIR lens structure applied to a doorbell according to claim 1, wherein the lens body (2) is sequentially divided into a first-layer visual area (201), a second-layer visual area (202), a third-layer visual area (203) and a fourth-layer visual area (204) from top to bottom, and the first-layer visual area (201), the second-layer visual area (202), the third-layer visual area (203) and the fourth-layer visual area (204) are composed of a plurality of Fresnel-line lens sheets, and all Fresnel-line lens sheets belonging to the same lens body (2) are focused in the same center.
  3. 3. A dual PIR lens structure for doorbell applications according to claim 2, wherein the first layer viewing zone (201), the second layer viewing zone (202), the third layer viewing zone (203) and the fourth layer viewing zone (204) are each provided with six rows of Fresnel lines of lens sheets, and the Fresnel lines of lens sheets located far from the center of the lens body (1) are arranged on the arc-shaped bending portion (103).
  4. 4. A double PIR lens arrangement for use on a doorbell according to claim 3, characterized in that the two lens bodies (2) are symmetrically distributed about the central axis of the lens body (1).
  5. 5. A dual PIR lens structure for use in a doorbell as in claim 4, wherein the focal length center of the Fresnel lens for each layer to the left is offset by 0.5-2mm and the offset angle is 5-15, and the focal length center of the Fresnel lens for each layer to the right is offset by 0.5-2mm and the offset angle is 5-15.
  6. 6. A dual PIR lens structure for doorbell use as in claim 5, wherein the left and right detection angles of the lens structure are 180 degrees and the up and down detection angles are 55 degrees.

Description

Double PIR lens structure applied to doorbell Technical Field The utility model relates to the technical field of intelligent home, in particular to a double PIR lens structure applied to a doorbell. Background The existing doorbell lens structure has certain limitations on detection angles and visual area ranges, is difficult to realize accurate detection of large angles and large visual area ranges, causes poor induction effect of a doorbell, can possibly appear the condition of missed detection or false detection, and cannot meet the requirement of a user on high reliability of the doorbell. For this purpose, a double PIR lens arrangement for use on a doorbell is proposed. Disclosure of utility model It is an object of the present utility model to provide a dual PIR lens arrangement for use on a doorbell that solves or at least alleviates one or more of the above-mentioned and other problems of the prior art. In order to achieve the above purpose, the main technical scheme adopted by the utility model comprises the following steps: The utility model provides a two PIR lens structures that use on doorbell, includes lens main part and mirror body, the both ends of lens main part all are provided with the arc portion of bending, the mirror body is provided with two, two mirror body sets up the left and right sides of lens main part, the mirror body is kept away from the one end at lens main part center sets up on the arc portion of bending, one of them mirror body focuses on the inductive position of one of them PIR sensor of doorbell, another mirror body focuses on the inductive position of another PIR sensor of doorbell. The utility model discloses a double PIR lens structure applied to a doorbell, wherein a mirror body is sequentially divided into a first-layer visual area, a second-layer visual area, a third-layer visual area and a fourth-layer visual area from top to bottom, the first-layer visual area, the second-layer visual area, the third-layer visual area and the fourth-layer visual area are composed of a plurality of Fresnel-line lens sheets, and all the Fresnel-line lens sheets belonging to the same mirror body are focused in the same center. The double PIR lens structure is characterized in that six rows of Fresnel lines of lens sheets are arranged in the first-layer visual area, the second-layer visual area, the third-layer visual area and the fourth-layer visual area, and the Fresnel lines of lens sheets far away from the center of the lens main body are arranged on the arc-shaped bending part. In a dual PIR lens arrangement for use on a doorbell according to the utility model, the two lens bodies are symmetrically distributed about the central axis of the lens body. In a double PIR lens structure applied to a doorbell according to the utility model, the focal length centers of the lenses of the Fresnel lines on the left are offset to the left by 0.5-2mm, the offset angle is 5-15 DEG, and the focal length centers of the lenses of the Fresnel lines on the right are offset to the right by 0.5-2mm, the offset angle is 5-15 deg. In a double PIR lens arrangement for use in a doorbell according to the utility model, the lens arrangement has a left and right detection angle of 180 ° and an upper and lower detection angle of 55 °. The utility model has at least the following beneficial effects: Through the cooperation of the arc bending part at lens main part both ends and two mirror body parts, the detection angle can reach 180 about, and about the detection angle is 55, greatly enlarged the detection scope, two mirror body parts pass through symmetrical distribution, the accurate two PIR sensor overall arrangement of matching doorbell, realize controlling the subregion and independently focus, with the accurate guide of human infrared signal to the sensor, effectively promoted the doorbell to the inductivity that different positions are close to personnel, the one-to-one design of two mirror body parts and two PIR sensors has avoided the detection blind area of single PIR system, through controlling the complementation of sensor signal, further promote the response reliability. Drawings The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings: FIG. 1 is a schematic diagram of the structure of the present utility model; FIG. 2 is a schematic rear view of the present utility model; FIG. 3 is a schematic top view of the present utility model; FIG. 4 is a right side view of the present utility model; FIG. 5 is a schematic view of a lens body of the present utility model in a side view and a top view; fig. 6 is a schematic view of a lens pattern according to the present utility model. Reference numerals illustrate: 1