Swing type rainfall sensor testing device
By using a swing-type rain gauge sensor testing device, a multi-hole body driven by a swing arm is used to simulate raindrops falling with different amounts of rainfall. This solves the problems of high water consumption and difficulty in reproducing test conditions in existing technologies, and achieves high-efficiency testing with low water consumption.
Patent Information
- Application Number
- CN202520293038.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-02-24
AI Technical Summary
Existing rain gauge testing devices consume a lot of water and the testing conditions are not easy to reproduce, making it difficult to simulate different rainfall environments.
Design a swing-type rain sensor testing device. A porous body is driven by a swing arm to reciprocate above the windshield to simulate the effect of raindrops falling at different rainfall levels. A sponge or towel is used as the porous body to absorb water and the swing speed is adjusted to control the water dripping speed.
It enables the simulation of different rainfall environments with low water consumption, simplifies the testing process, saves water resources, and improves the repeatability of the test.
Smart Images
Figure CN223941121U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rain gauge sensors, and in particular to a swing-type rain gauge sensor testing device. Background Technology
[0002] Rain sensors are widely used in automobiles. They control the operation of windshield wipers by sensing changes in rainfall, thus making it easier for drivers to use.
[0003] The working principle of existing rain sensors is as follows: light emitted by the light-emitting element on the rain sensor shines onto the windshield of a car at a set angle. Part of the light is reflected by the windshield and received by the photosensitive element on the rain sensor, which converts it into an electrical signal. When there are raindrops on the windshield, the scattering effect of the glass increases, reducing the reflected light. This weakens the light received by the photosensitive element, and consequently, the converted electrical signal weakens. Therefore, the rain sensor can determine the amount of rain on the windshield by measuring the change in the strength of the electrical signal output by the photosensitive element.
[0004] Currently, the testing and calibration of rain gauges are carried out by manually simulating different rainfall conditions through shower equipment. This method is cumbersome, makes it difficult to reproduce the test conditions, and consumes a lot of water, which is not conducive to resource conservation.
[0005] In view of the above problems, it is necessary to study a swing-type rain gauge test device that can provide a test environment that simulates different rainfall amounts to facilitate the testing of rain gauges, and consumes little water. Utility Model Content
[0006] The purpose of this invention is to provide a swing-type rain gauge test device, which can provide a test environment that simulates different rainfall amounts to facilitate the testing of rain gauges, and consumes little water.
[0007] To achieve the above objectives, the solution of this utility model is:
[0008] A swing-type rain sensor testing device includes a frame, a windshield, a positioning device, and a rain simulation device; the windshield is fixed to the frame; the positioning device is fitted to the frame and used to drive the rain sensor against the lower side of the windshield; the rain simulation device is fitted to the frame and includes a swing arm, a swing drive device for driving the swing arm to swing, and a porous body fitted to the swing arm that can absorb and drain water, the porous body abutting against the upper side of the windshield and moving on the upper side of the windshield.
[0009] A stop ring is fitted on the upper side of the windshield. The stop ring is sealed to the windshield, and a water storage tank is formed between the stop ring and the windshield. The porous body moves in the water storage tank.
[0010] The stop ring is bonded to the windshield with adhesive.
[0011] One end of the swing arm forms an embedded hole, and the porous body is fitted into the embedded hole.
[0012] The porous material is made of sponge or towel.
[0013] The swing drive device is a motor, which is fixed to the frame and the output shaft of the motor is connected to the swing arm.
[0014] The upper part of the frame is equipped with a motor bracket, and the motor is fixed on the motor bracket.
[0015] The positioning device includes a positioning fixture, a cam lifting mechanism for driving the positioning fixture to rise and fall and for positioning, and a push-pull quick clamp linked to the cam lifting mechanism. The positioning fixture is located below the windshield.
[0016] The positioning fixture is provided with a placement slot.
[0017] The frame is provided with two spaced mounting plates, and the two ends of the windshield are respectively connected to the two mounting plates.
[0018] With the above solution, when using the swing-type rain sensor testing device of this utility model, firstly, the positioning device places the rain sensor against the lower side of the windshield and adds water to the porous body; then, the swing drive device drives the swing arm to swing back and forth, causing the porous body to pass back and forth over the rain sensor; since the porous body contains water, when the porous body passes back and forth over the rain sensor, the water on the porous body will pass back and forth over the windshield above the rain sensor, thus simulating the effect of raindrops continuously dripping onto the windshield above the rain sensor; wherein, by adjusting the speed of the swing arm's reciprocating swing, and thus adjusting the speed at which the water on the porous body passes back and forth over the windshield above the rain sensor, this utility model can simulate the effect of raindrops of different rainfall amounts falling onto the windshield above the rain sensor, thereby providing a test environment simulating different rainfall amounts to facilitate the testing of the rain sensor; moreover, this utility model only requires adding water to the porous body, with low water consumption, which helps to save water resources. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .
[0020] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 .
[0021] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 .
[0022] Label Explanation:
[0023] Frame 1, mounting plate 11, motor bracket 12,
[0024] Windshield 2,
[0025] Positioning device 3, positioning fixture 31, placement slot 311, push-pull quick clamp 32
[0026] Rainfall simulation device 4, swing arm 41, embedded hole 411, swing drive device 42, porous body 43.
[0027] Stop ring 5, water storage tank 50. Detailed Implementation
[0028] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.
[0029] like Figures 1 to 3 As shown, this utility model discloses a swing-type rain sensor testing device, which includes a frame 1, a windshield 2, a positioning device 3, and a rain simulation device 4; wherein, the windshield 2 is fixed on the frame 1; the positioning device 3 is coupled to the frame 1 and is used to drive the rain sensor against the lower side of the windshield 2; the rain simulation device 4 is coupled to the frame 1, and the rain simulation device 4 includes a swing arm 41, a swing drive device 42 for driving the swing arm 41 to swing, and a porous body 43 coupled to the swing arm 41 and capable of absorbing and draining water, the porous body 43 abutting against the upper side of the windshield 2 and moving on the upper side of the windshield 2.
[0030] When using the swing-type rain sensor testing device of this utility model, firstly, the positioning device 3 places the rain sensor against the lower side of the windshield 2 and adds water to the porous body 43; then, the swing drive device 42 drives the swing arm 41 to swing back and forth, causing the porous body 43 to pass back and forth over the rain sensor; since the porous body 43 contains water, when the porous body 43 passes back and forth over the rain sensor, the water on the porous body 43 will pass back and forth over the windshield 2 above the rain sensor, thus simulating the effect of raindrops continuously dripping onto the windshield 2 above the rain sensor; wherein, by adjusting the speed of the swing arm 41's reciprocating swing, this utility model can adjust the speed at which the water on the porous body 43 passes back and forth over the windshield 2 above the rain sensor, thereby simulating the effect of raindrops of different rainfall amounts falling onto the windshield 2 above the rain sensor, thus providing a test environment simulating different rainfall amounts to facilitate the testing of the rain sensor; moreover, this utility model only requires adding water to the porous body 43, with low water consumption, which helps to save water resources.
[0031] In an embodiment of this utility model, the positioning device 3 includes a positioning fixture 31, a cam lifting mechanism (not shown) for driving the positioning fixture 31 to rise and fall and for positioning, and a push-pull quick clamp 32 linked with the cam lifting mechanism. The positioning fixture 31 is located below the windshield 2. The positioning fixture 31 is used to place a rain sensor. The positioning fixture 31 is provided with a placement slot 311 for placing the rain sensor to prevent the rain sensor from shifting. The push-pull quick clamp 32 drives the positioning fixture 31 to rise and fall through the cam lifting mechanism. The push-pull quick clamp 32 has a built-in locking function.
[0032] In an embodiment of this utility model, the frame 1 is provided with two spaced mounting plates 11, and the two ends of the windshield 2 are respectively connected to the two mounting plates 11, so that the lower part of the windshield 2 has sufficient operating space for assembling and disassembling the rain sensor.
[0033] In this embodiment of the invention, a stop ring 5 is fitted on the upper side of the windshield 2. The stop ring 5 is sealed to the windshield 2, and a water storage tank 50 is formed between the stop ring 5 and the windshield 2. The porous body 43 moves within the water storage tank 50. This effectively prevents the moisture carried by the porous body 43 from escaping. The stop ring 5 and the windshield 2 are glued together to ensure a tight seal.
[0034] In an embodiment of this utility model, one end of the swing arm 41 forms an insert 411, and the porous body 43 is fitted into the insert 411, thus making it easy to assemble and disassemble the porous body 43. The porous body 43 is preferably made of sponge, which has the advantage of good water absorption; the porous body 43 can also be made of a towel with good water absorption.
[0035] In an embodiment of this utility model, the swing drive device 42 is a motor, which is fixed to the frame 1 and its output shaft is connected to the swing arm 41. A motor bracket 12 may be provided on the upper part of the frame 1, and the motor is fixed on the motor bracket 12 so that the motor will not interfere with the swing of the swing arm 41.
[0036] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.
Claims
1. A swing-type rain gauge testing device, characterized in that: This includes the frame, windshield, positioning device, and rainfall simulation device; The windshield is fixed to the frame; The positioning device is fitted to the frame and is used to drive the rain sensor against the lower side of the windshield; The rainfall simulation device is mounted on a frame and includes a swing arm, a swing drive device for driving the swing arm to swing, and a porous body that is mounted on the swing arm and can absorb and drain water. The porous body abuts against the upper side of the windshield and moves on the upper side of the windshield.
2. The swing-type rain sensor testing device as described in claim 1, characterized in that: A stop ring is fitted on the upper side of the windshield. The stop ring is sealed to the windshield, and a water storage tank is formed between the stop ring and the windshield. The porous body moves in the water storage tank.
3. The swing-type rain sensor testing device as described in claim 2, characterized in that: The stop ring is bonded to the windshield with adhesive.
4. The swing-type rain sensor testing device as described in claim 1, characterized in that: One end of the swing arm forms an embedded hole, and the porous body is fitted into the embedded hole.
5. The swing-type rain sensor testing device as described in claim 1 or 4, characterized in that: The porous material is made of sponge or towel.
6. The swing-type rain sensor testing device as described in claim 1, characterized in that: The swing drive device is a motor, which is fixed to the frame and the output shaft of the motor is connected to the swing arm.
7. The swing-type rain sensor testing device as described in claim 6, characterized in that: The upper part of the frame is equipped with a motor bracket, and the motor is fixed on the motor bracket.
8. The swing-type rain sensor testing device as described in claim 1, characterized in that: The positioning device includes a positioning fixture, a cam lifting mechanism for driving the positioning fixture to rise and fall and for positioning, and a push-pull quick clamp linked to the cam lifting mechanism. The positioning fixture is located below the windshield.
9. The swing-type rain sensor testing device as described in claim 8, characterized in that: The positioning fixture is provided with a placement slot.
10. The oscillating rain sensor testing device as described in claim 1 or 8, characterized in that: The frame is provided with two spaced mounting plates, and the two ends of the windshield are respectively connected to the two mounting plates.