KR20160003519A - Apparatus for leak testing sealing connector and method for controling the same - Google Patents
Apparatus for leak testing sealing connector and method for controling the same Download PDFInfo
- Publication number
- KR20160003519A KR20160003519A KR1020140082089A KR20140082089A KR20160003519A KR 20160003519 A KR20160003519 A KR 20160003519A KR 1020140082089 A KR1020140082089 A KR 1020140082089A KR 20140082089 A KR20140082089 A KR 20140082089A KR 20160003519 A KR20160003519 A KR 20160003519A
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- South Korea
- Prior art keywords
- pressure
- inspection
- airtight
- connector
- negative pressure
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- 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
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2838—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for cables
Abstract
Description
The present invention relates to an airtight connector leakage inspection apparatus and a control method thereof.
Generally, in the automobile industry, a cable composed of various cables used to connect each component of an automobile is called a harness cable. The leakage tester detects leakage of the fluid at the connection portion of the piping or electric / electronic parts for moving the fluid, and is used to check the airtightness of the connector of the harness cable.
The leak tester has a plurality of channels in general, and it is possible to check leakage of the airtight connector to a plurality of cables from the plurality of channels.
In general, whether the airtight connector leaks is determined by applying the air pressure until the pressure value of the airtight connector reaches a predetermined value, and when the predetermined value is reached, the residual pressure after a certain time of the holding time And if it meets a predetermined criterion, a judgment is made as a pass.
Meanwhile, for example, the measurement method is sequentially performed from 1 to 40 channels, and alternatively, the static pressure inspection or the negative pressure inspection is performed alternately. Conventionally, when the airtight connector is not connected at the start of the static pressure inspection, the airtight connector inserted at the middle is not subjected to the static pressure inspection or the negative pressure inspection. Therefore, after the static pressure inspection and the negative pressure inspection of all the channels are performed, it is necessary to additionally inspect the inserted channels separately. Therefore, according to the conventional method, the operator has to insert the connector according to the inspection time, and if the time can not be adjusted, the inspections for the inserted one or two channels must be separately performed, thereby increasing the inspection time.
The present invention is characterized in that a first inspection for checking whether a leakage occurs to a plurality of airtight connectors against a static pressure and a second inspection for checking for a negative pressure are sequentially performed. When the airtight connector is inserted during the first inspection, And then performing the first inspection separately for the inserted airtight connector, it is possible to prevent the inconvenience of performing the inspection for both the positive pressure and the negative pressure separately for the airtight connector conventionally inserted during the inspection And an object of the present invention is to provide an airtight connector leakage inspection apparatus which greatly increases inspection time and inspection efficiency accordingly.
The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention which are not mentioned can be understood by the following description and more clearly understood by the embodiments of the present invention. It will also be readily apparent that the objects and advantages of the invention may be realized and attained by means of the instrumentalities and combinations particularly pointed out in the appended claims.
To achieve these and other advantages and in accordance with the purpose of the present invention, as embodied and broadly described herein, there is provided an apparatus for inspecting leakage of a plurality of airtight connectors, comprising: a plurality of holders to which the plurality of airtight connectors are associated and connected; A negative pressure generating portion for generating a positive or negative pressure, a pressure value measuring portion for measuring a pressure value of a positive pressure or a negative pressure, a multi connector portion for supplying a positive pressure or a negative pressure to the plurality of holders through a plurality of channels, A first inspection for inspecting whether or not leakage of the connector occurs against a static pressure and a second inspection for inspecting against a negative pressure are sequentially carried out. When the airtight connector is inserted during the first inspection, A second inspection is performed on the inserted airtight connector, It characterized in that it comprises a.
According to the present invention as described above, the first inspection for inspecting whether a leak occurs in the plurality of airtight connectors against the static pressure and the second inspection for inspecting the negative pressure are sequentially performed, and during the first inspection The second inspection is performed on the inserted airtight connector when the airtight connector is inserted and then the first inspection is separately performed on the inserted airtight connector so that the airtight connector inserted during the inspection is separately inspected for both the positive pressure and the negative pressure It is advantageous to significantly increase the inspection time and inspection efficiency.
BRIEF DESCRIPTION OF THE DRAWINGS FIG.
2 is a view showing a control method of an airtight connector leakage inspection apparatus according to an embodiment of the present invention.
The above and other objects, features, and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings, which are not intended to limit the scope of the present invention. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to denote the same or similar elements.
FIG. 1 is a view for explaining a conventional leakage inspection method of a hermetic connector. Referring to FIG. 1, the leakage inspection of the airtight connector is sequentially performed from the channel # 1 to the channel # 40. When the inspection from the channel # 1 to the channel # 40 for the positive pressure is completed, . The leakage test method of the airtight connector is such that when a static pressure is applied to a predetermined reference pressure value of 0.5 BAR for each channel and a residual pressure of 0.15 BAR or more is measured after 3 seconds of maintenance time, A method of judging can be used.
As shown in FIG. 1, the inspection can be performed for each channel in the above-described manner in the static pressure inspection and the negative pressure inspection. For example, a hermetic connector may be inserted for leakage testing of an airtight connector during a negative pressure test after the static pressure test is completed. In this case, as shown in the test # 1 in FIG. 1, the channel # 2 is not inspected, and after the inspection # 1 is completed, the channel # 2 is inspected through a separate inspection (inspection # 2) do.
In this way, according to the conventional airtight connector leakage inspection process, the operator must insert the connector according to the inspection time, and if the time is not adjusted, the inspection of the inserted one or two channels must be separately performed, There is a problem.
The airtight connector leakage inspection apparatus of the present invention may include a body and a holder extending from the body. The connector of the harness cable can be connected to the holder. The holder may further include a sensor unit and a display unit. The main body may include an air pressure providing portion, a static pressure negative pressure generating portion, a pressure value measuring portion, a multi connector portion, a control portion, and a display portion. The positive pressure negative pressure generating portion may include a positive pressure solenoid, a negative pressure solenoid, and a pneumatic merger. The pressure measurement part may include a pressure sensor connected to one end of the T-type distributor and the T-type distributor.
The connector portion is connected to the airtight connector leakage inspection apparatus of the present invention. The present invention aims to check whether leakage occurs in the connector portion. That is, the connector section means a hermetic connector of a harness cable. The harness cable may include one or more connector portions. The connector portion may be connected to the body of the present invention through a holder described later.
A plurality of airtight connectors are correspondingly connected to the holder. The holder extends from the multi-connector portion of the main body. That is, the holder provides a connection between the main body and the connector portion. The holder may be composed of a plurality of channels depending on the number of channels formed in the multi-connector portion. Whereby a plurality of holders are connected corresponding to the number of the plurality of connector parts.
In addition, the holder may further include a sensor unit and a display unit. The sensor unit senses that the connector unit is connected to the holder, and the display unit displays sound or light when it detects that the cable is connected through the sensor unit. For example, when the airtight connector is connected to the holder, the LED attached to the holder of the connected area can be turned on and a warning sound can be reproduced.
The air pressure providing section performs a function of providing air pressure. The air pressure providing portion may further include a regulator for adjusting the pressure of the generated air pressure. The air pressure providing portion generates an air pressure necessary for checking whether leakage occurs in the connector portion.
The constant-pressure negative-pressure generating unit performs a function of generating a positive pressure or a negative pressure by using the provided air pressure. More specifically, air or other gas is supplied through the air pressure providing portion, wherein the air or other gas may be supplied at a positive pressure higher than the atmospheric pressure or a negative pressure lower than the atmospheric pressure.
More specifically, the constant-pressure negative-pressure generating portion may be constituted by a manifold including a constant-pressure solenoid, a negative-pressure solenoid, and a pneumatic merger. The air pressure supplied from the air pressure providing portion can be supplied to the positive pressure via the positive pressure solenoid or to the negative pressure via the negative pressure solenoid. The static pressure or negative pressure air pressure generated through the static pressure solenoid or the negative pressure solenoid may be joined via the pneumatic joiner. The control unit may further include a control circuit for shutting off the negative pressure solenoid while the positive pressure is supplied through the positive pressure solenoid and for blocking the positive pressure solenoid while the negative pressure is supplied through the negative pressure solenoid. The static pressure solenoid and the air pressure of the positive or negative pressure generated through the negative pressure solenoid can be joined and supplied through the pneumatic joiner.
The pressure value measuring part performs the function of measuring the pressure value of the positive or negative pressure. The pressure measurement part may be composed of a T-type distributor and a pressure sensor. The positive or negative pressure supplied through the positive pressure negative pressure generator is introduced into one end of the T type distributor, and the pressure value is measured by a pressure sensor connected to the other end. A positive pressure or a negative pressure may be supplied through another end to check the leakage of the connector portion.
The multi-connector unit performs a function of supplying a positive pressure or a negative pressure to a plurality of holders through a plurality of channels, respectively. In other words, the multi-connector portion includes a plurality of channels to which a positive pressure or a negative pressure can be supplied, and can be connected to the holder by the number of channels. The multi-connector portion may be formed on the outside of the main body, and the positive or negative pressure may be supplied to the connector portion through the holder extended from the multi-connector portion.
The controller performs a function of sequentially checking whether leakage occurs in a plurality of airtight connectors supplied with a positive pressure or a negative pressure. More specifically, a reference pressure value is determined for each channel formed by connecting a plurality of connector portions to a plurality of holders. The control unit determines the order of the channels to be inspected according to the rated reference pressure value, and sequentially checks whether leakage occurs according to the determined order. At this time, the pressure value of the positive pressure or the negative pressure supplied from the constant-pressure negative pressure generating portion may increase from the pressure value corresponding to the minimum value of the reference pressure value to the pressure value corresponding to the maximum value of the reference pressure value. The inspection order is determined in the order of the channel having the reference pressure value of the maximum value from the channel having the reference pressure value of the minimum value among the set reference pressure values, and the channel can be sequentially inspected according to the predetermined order.
In an embodiment of the present invention, the controller may sequentially perform a first inspection and a second inspection to check whether leakage occurs to a plurality of airtight connectors. Here, the first check is an inspection for the positive pressure of each of the channels, and the second check is a check for the negative pressure of each of the channels.
2 is a diagram illustrating a control method of an airtight connector leakage inspection apparatus according to an embodiment of the present invention. Referring to FIG. 2, the controller may perform a second inspection on the inserted airtight connector when the airtight connector is inserted while performing the first inspection, and then perform the first inspection separately on the inserted airtight connector.
The display unit performs a function of displaying the inspection result in the control unit and the pressure value measured from the pressure value measurement unit. The test result may include information on the leakage test measurement value and the result of leakage occurrence on a channel-by-channel basis, and may include a static pressure value or a negative pressure value on a channel-by-channel basis. The display unit can display the inspection result and the measured pressure value through an LCD display device having an analog instrument panel or a touch input function.
According to the present invention as described above, the first inspection for inspecting whether a leak occurs in the plurality of airtight connectors against the static pressure and the second inspection for inspecting the negative pressure are sequentially performed, and during the first inspection The second inspection is performed on the inserted airtight connector when the airtight connector is inserted and then the first inspection is separately performed on the inserted airtight connector so that the airtight connector inserted during the inspection is separately inspected for both the positive pressure and the negative pressure It is advantageous to significantly increase the inspection time and inspection efficiency.
While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, But the present invention is not limited thereto.
Claims (1)
A plurality of holders to which the plurality of airtight connectors are respectively associated and connected;
Air pressure providing means for supplying air pressure;
A static pressure negative pressure generating unit for generating a static pressure or a negative pressure using the provided air pressure;
A pressure value measuring unit for measuring a pressure value of a positive pressure or a negative pressure;
A multi-connector portion to which positive or negative pressure is respectively supplied to the plurality of holders through a plurality of channels; And
A first inspection for checking whether a leakage occurs to the plurality of airtight connectors against a static pressure and a second inspection for checking for a negative pressure are sequentially performed. When the airtight connector is inserted during the first inspection, A controller for performing a second inspection on the connector and performing a first inspection separately for the inserted airtight connector,
And an airtight connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020140082089A KR20160003519A (en) | 2014-07-01 | 2014-07-01 | Apparatus for leak testing sealing connector and method for controling the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020140082089A KR20160003519A (en) | 2014-07-01 | 2014-07-01 | Apparatus for leak testing sealing connector and method for controling the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20160003519A true KR20160003519A (en) | 2016-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020140082089A KR20160003519A (en) | 2014-07-01 | 2014-07-01 | Apparatus for leak testing sealing connector and method for controling the same |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200485283Y1 (en) | 2017-05-02 | 2017-12-15 | 이왕재 | Rechargeable portable air injection device for leak test |
| CN109698841A (en) * | 2019-03-06 | 2019-04-30 | 成都明得科技有限公司 | The unknown bug excavation system and method for industry control based on video monitoring |
| KR102084958B1 (en) * | 2019-07-29 | 2020-03-05 | (주)대한전기엔지니어링 | Apparatus for inspecting waterproof connector |
| KR102253927B1 (en) * | 2020-05-11 | 2021-05-20 | 광동하이텍 주식회사 | Telescopic extension tube manufacturing and inspection device for vacuum cleaner |
| WO2022216007A1 (en) * | 2021-04-07 | 2022-10-13 | 광동하이텍 주식회사 | Vacuum cleaner telescopic extension tube manufacturing system |
-
2014
- 2014-07-01 KR KR1020140082089A patent/KR20160003519A/en not_active Application Discontinuation
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200485283Y1 (en) | 2017-05-02 | 2017-12-15 | 이왕재 | Rechargeable portable air injection device for leak test |
| CN109698841A (en) * | 2019-03-06 | 2019-04-30 | 成都明得科技有限公司 | The unknown bug excavation system and method for industry control based on video monitoring |
| KR102084958B1 (en) * | 2019-07-29 | 2020-03-05 | (주)대한전기엔지니어링 | Apparatus for inspecting waterproof connector |
| KR102253927B1 (en) * | 2020-05-11 | 2021-05-20 | 광동하이텍 주식회사 | Telescopic extension tube manufacturing and inspection device for vacuum cleaner |
| WO2021230626A1 (en) * | 2020-05-11 | 2021-11-18 | 광동하이텍 주식회사 | Apparatus for manufacturing and inspecting telescopic extension pipe for vacuum cleaner |
| WO2022216007A1 (en) * | 2021-04-07 | 2022-10-13 | 광동하이텍 주식회사 | Vacuum cleaner telescopic extension tube manufacturing system |
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