CN112284622A - System and method for detecting water tightness enhancement of automobile - Google Patents
System and method for detecting water tightness enhancement of automobile Download PDFInfo
- Publication number
- CN112284622A CN112284622A CN202011335871.0A CN202011335871A CN112284622A CN 112284622 A CN112284622 A CN 112284622A CN 202011335871 A CN202011335871 A CN 202011335871A CN 112284622 A CN112284622 A CN 112284622A
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- automobile
- air
- rain
- water tightness
- extracting
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000000605 extraction Methods 0.000 claims abstract description 25
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims description 7
- 238000005086 pumping Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention provides an automobile water tightness enhancement detection system which comprises a rain room, an automobile to be detected and an air extraction system, wherein the rain room is provided with the rain system, and the air extraction system is connected with the interior of the automobile to be detected. The invention also provides a method for detecting the water tightness enhancement of the automobile. The invention has the beneficial effects that: the water tightness performance of the automobile under the condition that the air pressure in the automobile is lower than that outside the automobile can be simulated.
Description
Technical Field
The invention relates to a detection system, in particular to a system and a method for enhancing water tightness of an automobile.
Background
The sealing performance of the automobile is an important performance of the automobile quality, and the automobile enterprises can strictly monitor the performance. However, since the production tact is high and the yield is high, in order to ensure a certain coverage rate, the equipment and resources are limited, an automobile factory generally arranges a rain room, and adopts an electric water pump to spray water from a spray head, so that the rain of the vehicle is realized, and a rain test is carried out to judge the water tightness of the vehicle skylight. The main drawbacks of this experimental method and apparatus are:
the air pressure in the vehicle is lower than the external air pressure due to the reasons of opening and closing the door, temperature change, use of an air conditioner, running at a high speed and the like. Under the condition, external rainwater can easily enter the vehicle from a small gap which can not be found by conventional rain, so that the vehicle is corroded or enters water. According to the simulation of the inventor, the negative pressure in the vehicle can reach about 30Pa lower than the atmospheric pressure. And the normal rain test can not simulate the water tightness performance of the vehicle under the extreme negative pressure working condition.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a system and a method for detecting the water tightness of an automobile, which can simulate the water tightness performance of the automobile under the condition that the air pressure in the automobile is lower than the air pressure outside the automobile.
The invention provides an automobile water tightness enhancement detection system which comprises a rain room, an automobile to be detected and an air extraction system, wherein the rain room is provided with the rain system, and the air extraction system is connected with the interior of the automobile to be detected.
As a further improvement of the present invention, an air extraction opening is provided on the window of the vehicle to be detected, the air extraction system includes an air extraction device, a hose and an adhesive plate, the adhesive plate is adhered around the air extraction opening, the air extraction device is connected with one end of the hose, and the other end of the hose is connected with the air extraction opening through the adhesive plate.
As a further improvement of the invention, the adhesive sheet is connected to the vehicle window in a sealing manner.
As a further improvement of the invention, the hose is connected with the pumping hole in a sealing way.
As a further improvement of the invention, the air exhaust opening is arranged on a side door window of the automobile to be detected.
As a further improvement of the invention, the automobile water tightness enhancement detection system also comprises a control room positioned outside the rain room, and the air exhaust system is installed inside the control room.
The invention also provides a method for detecting the water tightness reinforcement of the automobile, which adopts the system for detecting the water tightness reinforcement of the automobile to detect the following:
s1, driving the automobile to be detected into a rain room;
s2, connecting the automobile to be detected with an air extraction system;
s3, starting an air extraction system, and extracting air from the air pressure in the automobile to be detected to a set negative pressure;
s4, starting a rain system in a rain room to perform a rain test;
and S5, after the rain test is finished, closing the rain system and the air exhaust system, and detecting whether water seepage and water leakage exist.
As a further improvement of the present invention, in step S3, the negative pressure is set to-30 Pa.
The invention has the beneficial effects that: by the scheme, the water tightness performance of the automobile under the condition that the air pressure in the automobile is lower than the air pressure outside the automobile can be simulated.
Drawings
FIG. 1 is a schematic view of an automotive water tightness enhancement detection system according to the present invention.
Detailed Description
The invention is further described with reference to the following description and embodiments in conjunction with the accompanying drawings.
As shown in fig. 1, the automobile water tightness enhancement detection system comprises a rain room 1, an automobile to be detected and an air extraction system, wherein the rain room 1 is provided with a rain system 8, and the air extraction system is connected with the inside of the automobile to be detected.
Be equipped with extraction opening 4 on waiting to detect side door window 2 of car, air exhaust system includes air exhaust device 6, hose 5 and bonding board 3, bonding board 3 is pasted around extraction opening 4, air exhaust device 6 with the one end of hose 5 is connected, the other end of hose 5 passes through bonding board 3 with extraction opening 4 is connected.
The bonding plate 3 is connected with the side door window 2 in a sealing mode.
The hose 5 is connected with the pumping hole 4 in a sealing way.
The automobile water tightness reinforced detection system also comprises a control room 7 positioned outside the rain room 1, and the air exhaust device 6 is installed in the control room 7.
A method for detecting the water tightness enhancement of an automobile adopts the water tightness enhancement detection system of the automobile to detect the following steps:
s1, driving the automobile to be detected into the rain room 1;
s2, connecting the automobile to be detected with an air extraction system;
s3, starting an air extraction system, and extracting air from the air pressure in the automobile to be detected to a set negative pressure, such as-30 Pa;
s4, starting a rain system 8 of the rain room 1 to perform a rain test;
and S5, after the rain test is finished, closing the rain system 8 and the air exhaust system, and detecting whether water seepage and water leakage exist.
The invention provides a system and a method for detecting the water tightness of an automobile, which are characterized in that an air extraction system is additionally arranged on the basis of a common rain test in a rain room, the air extraction system is connected with the inside of the automobile through a side door window 2 of the automobile, an air extraction device 6 is started to extract air, so that specified negative air pressure is formed in the automobile, then the rain test in a negative air pressure state is carried out, the water tightness performance of the automobile under the condition that the air pressure in the automobile is lower than the air pressure outside the automobile can be simulated, and the defect that the water tightness of the whole automobile under a certain negative pressure working condition in the automobile can not be evaluated due to door opening and closing, air temperature change, use of an air conditioner, running at.
The invention provides a system and a method for detecting the water tightness of an automobile in a reinforced way, which have the following advantages:
compared with the common rain test, the scheme only has one more air extraction system, and has the advantages of low modification cost, simple operation and easy realization; the method can simulate and evaluate the water tightness of the vehicle after a certain negative pressure is generated in the vehicle due to various reasons, and solves the defect that the prior technical scheme can not evaluate the water tightness of the vehicle after a certain negative pressure is generated in the vehicle under the conditions of door opening and closing, air temperature change, air conditioner use, higher speed running and the like.
Through the scheme, the water tightness of the automobile is sampled and detected, the detection accuracy of the water tightness of the whole automobile can be effectively improved, and the risk of false detection or missed detection is reduced.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (7)
1. The utility model provides a detecting system is strengthened to car water tightness which characterized in that: the automobile air-extracting system comprises a rain room, an automobile to be detected and an air-extracting system, wherein the rain room is provided with the rain system, and the air-extracting system is connected with the inside of the automobile to be detected.
2. The automotive water tightness enhancement detection system according to claim 1, characterized in that: the automobile air-extracting system is characterized in that an air extracting opening is formed in the automobile window of the automobile to be detected, the air extracting system comprises an air extracting device, a hose and a bonding plate, the bonding plate is bonded around the air extracting opening, the air extracting device is connected with one end of the hose, and the other end of the hose is connected with the air extracting opening through the bonding plate.
3. The automotive water tightness enhancement detection system according to claim 2, characterized in that: the bonding plate is connected with the car window in a sealing mode.
4. The automotive water tightness enhancement detection system according to claim 2, characterized in that: the hose is connected with the air pumping hole in a sealing manner.
5. The automotive water tightness enhancement detection system according to claim 1, characterized in that: the automobile water tightness reinforced detection system further comprises a control room positioned outside the rain room, and the air exhaust system is installed in the control room.
6. A method for detecting the water tightness enhancement of an automobile is characterized by comprising the following steps: the use of the automotive water tightness enhancement detection system according to any one of claims 1 to 5 for the following tests:
s1, driving the automobile to be detected into a rain room;
s2, connecting the automobile to be detected with an air extraction system;
s3, starting an air extraction system, and extracting air from the air pressure in the automobile to be detected to a set negative pressure;
s4, starting a rain system in a rain room to perform a rain test;
and S5, after the rain test is finished, closing the rain system and the air exhaust system, and detecting whether water seepage and water leakage exist.
7. The method for detecting water tightness enhancement of an automobile according to claim 6, wherein: in step S3, the negative pressure is set to-30 Pa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011335871.0A CN112284622A (en) | 2020-11-25 | 2020-11-25 | System and method for detecting water tightness enhancement of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011335871.0A CN112284622A (en) | 2020-11-25 | 2020-11-25 | System and method for detecting water tightness enhancement of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112284622A true CN112284622A (en) | 2021-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011335871.0A Pending CN112284622A (en) | 2020-11-25 | 2020-11-25 | System and method for detecting water tightness enhancement of automobile |
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| Country | Link |
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| CN (1) | CN112284622A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114323453A (en) * | 2021-12-29 | 2022-04-12 | 武汉泰格尔科技发展有限公司 | Negative pressure test device in cabin and operation method thereof |
Citations (5)
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|---|---|---|---|---|
| CN102601749A (en) * | 2012-04-01 | 2012-07-25 | 上汽通用五菱汽车股份有限公司 | Handheld vacuum picker |
| CN104792476A (en) * | 2015-05-13 | 2015-07-22 | 神龙汽车有限公司 | Method for detecting airtightness of finished automobile |
| CN106768696A (en) * | 2016-11-29 | 2017-05-31 | 青岛宏达青田交通设备有限公司 | The automation airtight salt fog test platform of windscreen and test method |
| CN210953259U (en) * | 2019-12-10 | 2020-07-07 | 青岛万捷机械科技有限公司 | Water spraying test device of cabinet body for intercity train |
| CN211904554U (en) * | 2020-04-14 | 2020-11-10 | 一汽-大众汽车有限公司 | Tool for testing automobile sealing performance |
-
2020
- 2020-11-25 CN CN202011335871.0A patent/CN112284622A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102601749A (en) * | 2012-04-01 | 2012-07-25 | 上汽通用五菱汽车股份有限公司 | Handheld vacuum picker |
| CN104792476A (en) * | 2015-05-13 | 2015-07-22 | 神龙汽车有限公司 | Method for detecting airtightness of finished automobile |
| CN106768696A (en) * | 2016-11-29 | 2017-05-31 | 青岛宏达青田交通设备有限公司 | The automation airtight salt fog test platform of windscreen and test method |
| CN210953259U (en) * | 2019-12-10 | 2020-07-07 | 青岛万捷机械科技有限公司 | Water spraying test device of cabinet body for intercity train |
| CN211904554U (en) * | 2020-04-14 | 2020-11-10 | 一汽-大众汽车有限公司 | Tool for testing automobile sealing performance |
Non-Patent Citations (1)
| Title |
|---|
| 杨利昌 张连杰 赵梦涛: ""浅谈新车试做中的淋雨确认"", 《河南省汽车工程学会会议论文集》 * |
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| CN114323453A (en) * | 2021-12-29 | 2022-04-12 | 武汉泰格尔科技发展有限公司 | Negative pressure test device in cabin and operation method thereof |
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Application publication date: 20210129 |
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