Rotary rainfall sensor testing device

Abstract

The utility model discloses a rotary rainfall sensor testing device, which comprises a rack, a windshield, a positioning device and a rainfall simulation device, the windshield is fixed on the rack; the positioning device is matched with the rack and is used for driving the rainfall sensor to abut against the lower side of the windshield; the rainfall simulation device is arranged on the rack in a matched mode and comprises a rotating base, at least one rainfall simulation assembly matched with the rotating base and a rotation driving device driving the rotating base to rotate. The rainfall simulation assembly comprises a porous body which is in movable contact with the upper side of the windshield and can absorb water and drain water, and a water spraying device used for spraying water to the porous body, and one side of the porous body is provided with a plurality of raindrop simulation heads which movably abut against the upper side of the windshield. The rainfall sensor testing device can provide testing environments for simulating different rainfall so as to test the rainfall sensor, and is low in water consumption.

Description

TECHNICAL FIELD

[0001] The utility model relates to rain sensor field especially point to a rotary rain sensor testing device. BACKGROUND

[0002] Rain sensor is a kind of sensor widely used in car, and rain sensor controls the work of windscreen wiper according to the change of rain amount, to facilitate the use of car driver.

[0003] The working principle of the existing rain sensor is that the light emitted by the light-emitting element on the rain sensor is irradiated to the windshield of the car according to the set angle, part of the light is reflected by the windshield, and then is received by the photosensitive element on the rain sensor and is converted into an electric signal. When there are raindrops on the windshield of the car, the scattering effect of the glass is enhanced, so that the reflected light is reduced, the light received by the photosensitive element is weakened, and the electric signal converted is also weakened. Therefore, the rain sensor can measure the change of the strength of the electric signal output by the photosensitive element to determine the amount of rain on the windshield of the car.

[0004] At present, the rain sensor is tested and calibrated by artificial simulation of different rain conditions by using shower equipment, which is troublesome, difficult to reproduce test conditions, and consumes a large amount of water, which is not conducive to resource saving.

[0005] In view of the above problems, it is necessary to study a rotary rain sensor testing device, which can provide a test environment simulating different rain amounts to facilitate the testing of rain sensor, and has small water consumption. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a rotary rain sensor testing device, which can provide a test environment simulating different rain amounts to facilitate the testing of rain sensor, and has small water consumption.

[0007] In order to achieve the above purpose, the solution of the utility model is as follows:

[0008] A rotary rain sensor testing device, comprising a rack, a windshield, a positioning device and a rain amount simulation device, the windshield is fixed on the rack, the positioning device is matched with the rack and is used to drive the rain sensor to abut against the lower side of the windshield, the rain amount simulation device is matched with the rack, the rain amount simulation device comprises a rotating seat, at least one rain amount simulation assembly matched with the rotating seat and a rotating driving device for driving the rotating seat to rotate, the rain amount simulation assembly comprises a porous body in movable contact with the upper side of the windshield and capable of absorbing water and draining water, and a water spraying device for spraying water to the porous body, one side of the porous body has a plurality of raindrop simulation heads in movable contact with the upper side of the windshield.

[0009] The stop ring is in sealing engagement with the windshield, and a water storage groove is formed between the stop ring and the windshield.

[0010] The stop ring is bonded to the windshield by glue.

[0011] The rain amount simulation device has a plurality of rain amount simulation assemblies, and the raindrop simulation heads of the porous bodies of the respective rain amount simulation assemblies are different in size.

[0012] The porous body is a sponge.

[0013] The rotating driving device is an electric motor fixed to the frame, and the output shaft of the electric motor is connected to the rotating seat.

[0014] The upper portion of the frame is provided with a motor support, and the motor is fixed to the motor support.

[0015] The positioning device comprises a positioning jig and a lifting driving device for driving the lifting of the positioning jig.

[0016] The positioning jig is provided with a placing groove.

[0017] The lifting driving device is a pneumatic cylinder.

[0018] After the above scheme is adopted, when the rotating rain amount sensor testing device of the utility model is used, firstly, the positioning device abuts the rain amount sensor against the lower side of the windshield, and the water spraying device of the rain amount simulation assembly to be used sprays water to the porous body of the rain amount simulation assembly so that the raindrop simulation heads of the porous body have water; then, the rotating driving device drives the reciprocating rotation of the rotating seat so that the porous body of the rain amount simulation assembly reciprocates through the upper side of the rain amount sensor, and then the plurality of raindrop simulation heads of the porous body with water repeatedly contact the windshield on the upper side of the rain amount sensor, thereby simulating the effect of raindrops continuously falling on the windshield on the upper side of the rain amount sensor; wherein, by adjusting the speed of the reciprocating rotation of the rotating seat, the speed of the plurality of raindrop simulation heads of the porous body with water repeatedly contacting the windshield can be adjusted, so that the effect of raindrops of different rain amounts falling on the windshield on the upper side of the rain amount sensor can be simulated, thereby providing a test environment simulating different rain amounts to facilitate the testing of the rain amount sensor; and moreover, the utility model only needs to spray water to the porous body, and the water consumption is small, which helps to save water resources. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 Structure diagram of the utility model Figure 1 .

[0020] Figure 2 Structure diagram of the utility model Figure 2 .

[0021] Figure 3The utility model discloses a structure diagram Figure 3 .

[0022] Figure 4 The utility model discloses a sectional view.

[0023] Label explanation:

[0024] Frame 1, mounting plate 11, motor support 12, control button 13

[0025] Windshield 2,

[0026] Positioning device 3, positioning fixture 31, placement groove 311, lifting drive device 32,

[0027] Rainfall simulation device 4, rotating seat 41, support 411, rainfall simulation assembly 42, porous body 421, raindrop simulation head 4211, water spraying device 422, rotating drive device 43,

[0028] Stop ring 5, water storage tank 50. Specific implementation

[0029] In order to further explain the technical scheme of the utility model, the utility model is described in detail below through specific embodiments.

[0030] As Figures 1 to 4 Indicated, the utility model discloses a rotating rainfall sensor testing device, it includes frame 1, windshield 2, positioning device 3 and rainfall simulation device 4, wherein, the windshield 2 is fixed on frame 1, the positioning device 3 is cooperated in frame 1 and is used to drive rainfall sensor and leans against the downside of windshield 2, the rainfall simulation device 4 is cooperated on frame 1, and rainfall simulation device 4 includes rotating seat 41, at least one cooperation rainfall simulation assembly 42 of rotating seat 41, and rotating drive device 43 of drive rotating seat 41 rotation, rainfall simulation assembly 42 includes the porous body 421 of water absorption and drainage with the upper side movable contact of windshield 2 and can, and the water spraying device 422 for spraying water to porous body 421, and the raindrop simulation head 4211 of a plurality of movable resistance windshield 2 upper side has in porous body 421 side.

[0031] When using the rotating 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 the water spraying device 422 of the rain simulation component 42 sprays water onto the porous body 421 of the rain simulation component 42, so that the raindrop simulation head 4211 of the porous body 421 is moistened; then, the rotation driving device 43 drives the rotating seat 41 to rotate back and forth, so that the porous body 421 of the rain simulation component 42 passes back and forth over the rain sensor, thereby causing the multiple moistened raindrop simulation heads 4211 of the porous body 421 to repeatedly contact the rain sensor. The windshield 2 on the upper side of the rain sensor is used to simulate the effect of raindrops continuously falling on the windshield 2 on the upper side of the rain sensor. In this invention, by adjusting the reciprocating speed of the rotating seat 41, the speed at which the multiple raindrop simulation heads 4211 with water in the porous body 421 repeatedly contact the windshield 2 can be adjusted, thus simulating the effect of raindrops of different amounts falling on the windshield 2 on the upper side of the rain sensor. This provides a test environment that simulates different amounts of rainfall to facilitate the testing of the rain sensor. Moreover, this invention only requires water to be sprayed onto the porous body 421, which consumes little water and helps to save water resources.

[0032] In an embodiment of this utility model, the positioning device 3 includes a positioning fixture 31 and a lifting drive device 32 for driving the positioning fixture 31 to rise and fall. 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 lifting drive device 32 can be a cylinder. The lifting drive device 32 is fixed to the frame 1 and the piston rod of the lifting drive device 32 is connected to the positioning fixture 31.

[0033] 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.

[0034] 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 groove 50 is formed between the stop ring 5 and the windshield 2. This effectively prevents moisture from escaping from the porous body 421. The stop ring 5 and the windshield 2 are glued together to ensure a tight seal.

[0035] In the embodiment of the utility model, the rain amount simulation device 4 has multiple rain amount simulation components 42, the raindrop simulation head 4211 of the porous body 421 of each rain amount simulation component 42 is different in size, and the raindrop simulation head 4211 of different sizes can simulate raindrops of different sizes. The rotating seat 41 can have a supporting rod 411 for matching the rain amount simulation component 42, the porous body 421 can adopt a sponge, and the sponge has the advantage of good water absorption; and the water spraying device 422 can adopt a spray pipe.

[0036] In the embodiment of the utility model, the rotating drive device 43 is a motor, the motor is fixed to the rack 1, and the output shaft of the motor is connected with the rotating seat 41. The upper part of the rack 1 can be provided with a motor support 12, and the motor is fixed on the motor support 12, so that the motor does not interfere with the rotation of the rotating seat 41.

[0037] In the embodiment of the utility model, multiple control buttons 13 for respectively controlling the rotating drive device 43, the lifting drive device 32 and the water spraying device 422 can be arranged on the rack 1, which is convenient for user operation.

[0038] The above embodiment and drawing are not limited to the product shape and style of the utility model, and any ordinary skilled person in the art can make appropriate changes or modifications, which should be regarded as not departing from the patent category of the utility model.

Claims

1. A rotating rain sensor test device, characterized by: The device comprises a frame, a windshield, a positioning device and a rainfall simulation device; The windshield is fixed on the frame; The positioning device is matched with the frame and used to drive the rainfall sensor to abut against the lower side of the windshield; The rainfall simulation device is matched with the frame, and the rainfall simulation device comprises a rotating seat, at least one rainfall simulation assembly matched with the rotating seat, and a rotating driving device used to drive the rotating seat to rotate, the rainfall simulation assembly comprises a porous body in movable contact with the upper side of the windshield and capable of absorbing and draining water, and a water spraying device used to spray water to the porous body, and the porous body has a plurality of rainfall simulation heads in movable contact with the upper side of the windshield on one side.

2. The rotating rain sensor testing device of claim 1, wherein: The upper side of the windshield is matched with a stop ring, the stop ring is in sealing contact with the windshield, and a water storage groove is formed between the stop ring and the windshield.

3. The rotating rain sensor testing device of claim 2, wherein: The stop ring and the windshield are bonded by glue.

4. The rotating rain sensor testing device of claim 1, wherein: The rainfall simulation device has a plurality of rainfall simulation assemblies, and the rainfall simulation heads of the porous bodies of the respective rainfall simulation assemblies are different in size.

5. The rotating rain sensor testing device of claim 1 or 4, wherein: The porous body is a sponge.

6. The rotating rain sensor testing device of claim 1, wherein: The rotating driving device is an electric motor, the electric motor is fixed on the frame, and an output shaft of the electric motor is connected with the rotating seat.

7. The rotating rain sensor testing device of claim 6 wherein: The upper part of the frame is provided with a motor support, and the motor is fixed on the motor support.

8. The rotating rain sensor testing device of claim 1, wherein: The positioning device comprises a positioning jig and a lifting driving device used to drive the positioning jig to lift.

9. The rotating rain sensor testing device of claim 8 wherein: The positioning jig is provided with a placing groove.

10. The rotating rain sensor testing device of claim 8 wherein: The lifting driving device is a pneumatic cylinder.

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