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CN-224197726-U - Rainfall sensor

CN224197726UCN 224197726 UCN224197726 UCN 224197726UCN-224197726-U

Abstract

The utility model relates to the field of rainfall sensors, in particular to a rainfall sensor, which comprises a sensor body, a connecting sheet and a mounting seat, wherein elastic arms are arranged on two sides of the connecting sheet, each elastic arm comprises a front section, a first bending part and a rear section which are sequentially connected, two opposite mounting notches are formed in the mounting seat, the elastic arms respectively penetrate through the mounting notches and mutually support the inner side surfaces of the mounting seat, a support block and a driving assembly are arranged in the mounting seat, the driving assembly drives the support block to move towards the rear section, the driving assembly drives the support block to mutually support the rear ends of the elastic arms, so that the support block applies acting force towards the direction of the sensor body to the elastic arms, the tightness of direct contact between the front end of the sensor body and a windshield is improved, the sensor body is prevented from shaking, the hierarchical structure of a silica gel layer of the sensor body is influenced, and the rainfall detection precision is improved.

Inventors

  • YANG XINGYU

Assignees

  • 厦门东南山科技有限公司

Dates

Publication Date
20260505
Application Date
20250529

Claims (10)

  1. 1. The rainfall sensor is characterized by comprising a sensor body, a connecting sheet and a mounting seat; The connecting piece is fixed on the bottom surface of the sensor body, the top surface of the sensor body is propped against and attached to the windshield, elastic arms are arranged on two sides of the connecting piece, each elastic arm comprises a front section, a first bending part and a rear section which are sequentially connected, the front section extends towards one side far away from the sensor body, the rear section extends towards one side of the sensor body, and the end part of the rear section extends to the side part of the sensor body; The mounting seat is provided with two oppositely arranged mounting notches, the elastic arms respectively penetrate through the mounting notches and the inner side faces of the mounting seat to mutually prop against, two opposite propping mechanisms are arranged in the mounting seat and comprise propping blocks and driving assemblies, the front end faces of the propping blocks are oppositely arranged with the rear sections, the driving ends of the driving assemblies are in driving connection with the rear end faces of the propping blocks, and the driving assemblies drive the propping blocks to move towards the rear sections.
  2. 2. The rainfall sensor of claim 1, wherein the positioning protrusion set is fixed on the bottom surface of the sensor body, a first groove set which is concave inwards is arranged on the top surface of the connecting sheet, the groove bottom of the first groove set protrudes out of the bottom surface of the connecting sheet, a second groove set is arranged on the outer side surface of the mounting seat, the positioning protrusion set is embedded in the first groove set, and the groove bottom of the first groove set is embedded in the second groove set.
  3. 3. The rainfall sensor of claim 2, wherein the positioning protrusion group comprises two pairs of horizontal protrusions and vertical protrusions, the first groove group comprises two pairs of first horizontal grooves and first vertical grooves, and the second groove group comprises two pairs of second horizontal grooves and second vertical grooves; The first horizontal grooves and the horizontal protrusions are arranged opposite to the second horizontal grooves, and the first vertical grooves and the vertical protrusions are arranged opposite to the second vertical grooves.
  4. 4. The rainfall sensor as set forth in claim 1, wherein the bottom surface of the sensor body is provided with a limiting strip which is arranged oppositely, and the limiting strip is propped against the upper side surface and the lower side surface of the connecting sheet and extends outwards to the upper side and the lower side of the mounting seat.
  5. 5. The rainfall sensor of claim 1, wherein the bottom surface of the sensor body is provided with a positioning column, the connecting sheet is provided with a positioning hole corresponding to the positioning column, the mounting seat is provided with a positioning groove corresponding to the positioning column, and the end part of the positioning column penetrates through the positioning hole and is embedded in the positioning groove.
  6. 6. The rainfall sensor of claim 1, wherein the free end of the rear section is provided with a second bending part, and the second bending part bends towards the side far away from the sensor body.
  7. 7. The rainfall sensor of claim 1, wherein the driving assembly comprises a driving block and a threaded driving rod, the mounting seat is provided with a threaded hole, the threaded driving rod is in threaded connection with the threaded hole, one end of the threaded driving rod is in driving connection with the bottom of the driving block, and the side surface of the driving block is a driving surface; The rear end face of the propping block is an inclined wedge face, the inclined wedge face is inclined outwards from the bottom end to the top end, and the driving face and the inclined wedge face are mutually attached.
  8. 8. The rainfall sensor of claim 1, wherein a sliding guide rail is arranged in the mounting seat, sliding grooves are formed in two sides of the propping block, and the end parts of the sliding guide rail are embedded in the sliding grooves.
  9. 9. The rain sensor of claim 1, wherein the sensor body comprises an upper cover, a lower cover, a silicone layer, a circuit board, and a lens assembly; The upper cover and the lower cover enclose the circuit board and the lens component, a positioning block is arranged at the inner edge of the lower cover, a positioning notch corresponding to the positioning block is arranged at the bottom of the circuit board, the positioning block is embedded in the positioning notch, the lens component is fixed on the inner top surface of the upper cover, and a transmission channel for light to pass through is formed in the upper cover.
  10. 10. The rainfall sensor of claim 9, wherein the circuit board is electrically connected with a pin assembly, the pin assembly comprises a mounting block and pins penetrating through the mounting block, and one ends of the pins are spliced on the circuit board; The bottom both ends of installation piece are equipped with downwardly extending's gag lever post and limiting plate, spacing perforation and spacing breach have been seted up on the circuit board, the gag lever post wears to establish in spacing perforation, the limiting plate inlays to be established in spacing breach.

Description

Rainfall sensor Technical Field The utility model relates to the field of rainfall sensors, in particular to a rainfall sensor. Background The rainfall sensor is an important device for measuring rainfall and has wide application in various fields such as meteorological observation, agricultural irrigation, hydrologic monitoring, urban drainage system management and the like. Its core function is accurate perception rainfall condition to turn rainfall into quantifiable, analyzable data. The rain sensor mainly works based on principles of optics, capacitance, piezoelectricity and the like. The optical rain sensor is typically composed of a light source, a light receiver, and a signal processing circuit. When there is no rainfall, the light emitted by the light source can be directly received by the light receiver, and when there is rainfall, the raindrops scatter or absorb the light, so that the light intensity received by the light receiver changes. The signal processing circuit calculates the rainfall according to the change of the light intensity. The optical rainfall sensor has the advantages of high response speed, high measurement precision, no influence of mechanical abrasion and the like. The optical rainfall sensor is mainly applied to an automobile windshield and is matched with the windscreen wiper, so that the action frequency of the windscreen wiper is automatically adjusted. If the application number is CN202010446445.8, the name is an invention patent of a vehicle rainfall illumination sensor, the sensor main body is borne by the spring buckle, and the two ends of the spring buckle are opened to be in clamping connection with the vehicle interior rearview mirror, but gaps are easy to exist between the clamping connection structures due to factors such as tolerance, so that only the silica gel layer plays a limiting role on the bearing sensor main body, when the shaking inertia of the sensor main body is greater than the binding force of the silica gel layer, the sensor main body is caused to shake, the hierarchical structure of the silica gel layer is changed, partial light cannot be totally reflected, and the rainfall monitoring precision is affected. Disclosure of utility model The utility model aims to provide a rainfall sensor, and aims to solve the problems that the fixing effect of a fixing structure of a conventional sensor body is poor, the hierarchical structure of a silica gel layer is changed, partial light cannot be totally reflected, and the rainfall monitoring precision is affected. In order to achieve the above purpose, the present utility model adopts the following technical scheme: A rainfall sensor comprises a sensor body, a connecting sheet and a mounting seat; The connecting piece is fixed on the bottom surface of the sensor body, the top surface of the sensor body is propped against and attached to the windshield, elastic arms are arranged on two sides of the connecting piece, each elastic arm comprises a front section, a first bending part and a rear section which are sequentially connected, the front section extends towards one side far away from the sensor body, the rear section extends towards one side of the sensor body, and the end part of the rear section extends to the side part of the sensor body; The mounting seat is provided with two oppositely arranged mounting notches, the elastic arms respectively penetrate through the mounting notches and the inner side faces of the mounting seat to mutually prop against, two opposite propping mechanisms are arranged in the mounting seat and comprise propping blocks and driving assemblies, the front end faces of the propping blocks are oppositely arranged with the rear sections, the driving ends of the driving assemblies are in driving connection with the rear end faces of the propping blocks, and the driving assemblies drive the propping blocks to move towards the rear sections. Further, a positioning protrusion set is fixed on the bottom surface of the sensor body, a first groove set which is concave inwards is arranged on the top surface of the connecting sheet, the groove bottom of the first groove set protrudes out of the bottom surface of the connecting sheet, a second groove set is arranged on the outer side surface of the mounting seat, the positioning protrusion set is embedded in the first groove set, and the groove bottom of the first groove set is embedded in the second groove set. Further, the positioning protrusion group comprises horizontal protrusions and vertical protrusions which are arranged in a pairwise manner, the first groove group comprises a first horizontal groove and a first vertical groove which are arranged in a pairwise manner, and the second groove group comprises a second horizontal groove and a second vertical groove which are arranged in a pairwise manner; The first horizontal grooves and the horizontal protrusions are arranged opposite to the second horizontal grooves, and the first vertica