CN207215391U - Leak detection system - Google Patents
Leak detection system Download PDFInfo
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- CN207215391U CN207215391U CN201721061735.0U CN201721061735U CN207215391U CN 207215391 U CN207215391 U CN 207215391U CN 201721061735 U CN201721061735 U CN 201721061735U CN 207215391 U CN207215391 U CN 207215391U
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- gas
- housing
- leak detection
- detection system
- temperature
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- 238000001514 detection method Methods 0.000 title claims abstract description 44
- 239000007789 gas Substances 0.000 description 70
- 238000001816 cooling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 239000000700 radioactive tracer Substances 0.000 description 1
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- Examining Or Testing Airtightness (AREA)
Abstract
Leak detection system includes a gas supply device, an aerating device, a getter device, a thermal imagery acquisition device, and a processing unit.The gas supply device is used to provide a search gas, and the wherein temperature of the search gas is higher or lower than the temperature of surrounding air.The aerating device is connected to the gas supply device, for being filled with the search gas to a housing.The getter device is used to suction out the gas in the housing.The thermal imagery acquisition device is used for the thermal imagery for obtaining the housing.The processing unit is electrically connected to the thermal imagery acquisition device, and the search gas is leaked for judging whether the housing has according to the thermal imagery of the housing.
Description
Technical field
The utility model is to be relevant to a kind of leak detection system, espespecially a kind of survey leaked hunting using high temperature or cryogenic gas
Leakage system.
Background technology
In general, electric motor of automobile assembly includes inverter, motor and gearbox.Inverter is used for the direct current of battery
Voltage conversion is alternating voltage, is rotated with further motor.Gearbox is used to change and be transferred to phase by the power of motor
Shutting mechanism, further to drive automobile to move.It is closed that the housing of inverter, motor and gearbox can be interconnected so as to form one
Housing.When electric motor of automobile assembly operates, inverter, motor and gearbox can produce heat.In order to avoid high temperature influences
To the function and efficiency of electric motor of automobile assembly, it is known that technology can be flowed through inside electric motor of automobile assembly using cooling media to take away vapour
Heat caused by the running of vehicle motor assembly.However, when the seal between the housing of inverter, motor and gearbox is bad
When, cooling media is possible to leak, and in turn results in that cooling effectiveness is bad, and further has influence on the function of electric motor of automobile assembly
And efficiency.Existing leak detection technology is typically to be leaked hunting using fluorescer.However, fluorescer is possible to meeting to inverter, electricity
The element of machine and gearbox causes to damage.Existing leak detection technology simultaneously can not be carried out quickly and effectively to electric motor of automobile assembly
Leak hunting.
Utility model content
The purpose of this utility model is to provide a kind of leak detection system and leak detection method, to solve the problems, such as prior art.
The utility model leak detection system, including a gas supply device, an aerating device, a getter device, a thermal imagery
Acquisition device, and a processing unit.The gas supply device is used for the temperature for providing a search gas, the wherein search gas
Higher or lower than the temperature of surrounding air.The aerating device is connected to the gas supply device, shows for being filled with this to a housing
Track gas.The getter device is used to suction out the gas in the housing.The thermal imagery acquisition device is used to obtain the housing
Thermal imagery.The processing unit is electrically connected to the thermal imagery acquisition device, for judging that the housing is according to the thermal imagery of the housing
It is no to have the leakage search gas.
The utility model electric motor of automobile assembly leak detection method includes providing the temperature of a search gas, the wherein search gas
Higher or lower than the temperature of surrounding air；An aerating device is provided to be used to be filled with the search gas to a housing；One air-breathing is provided
Device is used to suction out the gas in the housing；Obtain the thermal imagery of the housing；And the shell is judged according to the thermal imagery of the housing
Whether body, which has, leaks the search gas.
Compared to prior art, the utility model leak detection system is leaked hunting using high temperature or cryogenic gas, therefore not
Determinand can be caused to damage, and need not be cleaned after having leaked hunting.Furthermore the utility model leak detection system can be treated simultaneously
The housing for surveying thing is inflated and air-breathing, with rapidly by the gas displacement in the housing of determinand into search gas, and accurately
Air pressure and gas temperature in the housing of ground control determinand.Therefore, the utility model leak detection system has effect of preferably leaking hunting
Rate and accuracy.
Brief description of the drawings
Fig. 1 is the schematic diagram of the utility model leak detection system；
Fig. 2 is the schematic diagram that the utility model leak detection system is leaked hunting to electric motor of automobile assembly；
Fig. 3 is the flow chart of the utility model leak detection method.
Reference：
100：Leak detection system；110：Gas supply device；120：Aerating device；130：Getter device；140：Thermal imagery obtains
Take device；150：Processing unit；160：Air pressure detecting unit；170：Temperature detecting unit；200：Electric motor of automobile assembly；210：Electricity
Machine；212：Air inlet；214：Gas outlet；220：Gearbox；230：Inverter；300：Flow chart；310 to 350：Step.
Embodiment
Fig. 1 is refer to, Fig. 1 is the schematic diagram of the utility model leak detection system.As shown in figure 1, the utility model leaks hunting is
System 100 include a gas supply device 110, an aerating device 120, a getter device 130, a thermal imagery acquisition device 140 with
An and processing unit 150.Gas supply device 110 is to be used to provide a search gas, and the temperature of wherein search gas is above
Or the temperature less than surrounding air.For example, search gas can be air or other easily obtain and it is not acrid
Gas (such as nitrogen or carbon dioxide), and the temperature of search gas can be above or one pre- less than room temperature (such as 25 DEG C)
Determine the number of degrees (such as 100 DEG C), but the utility model is not limited.Temperature difference between search gas and surrounding air can be according to
Change according to different detecting demands.Aerating device 120 is to be connected to gas supply device 110, is shown for being filled with to a determinand
Track gas.Getter device 130 is for suctioning out the gas in determinand.Thermal imagery acquisition device 140 is to be used to obtain determinand
Thermal imagery.Processing unit 150 is electrically connected to thermal imagery acquisition device 140, for judging to treat according to the thermal imagery of determinand
Survey whether thing has the leak position of leakage search gas and search gas.
For example, Fig. 2 is refer to, Fig. 2 is that the utility model leak detection system shows what electric motor of automobile assembly was leaked hunting
It is intended to.As shown in Fig. 2 the utility model leak detection system 100 can be used for leaking hunting to an electric motor of automobile assembly 200.Automobile electricity
Machine assembly 200 includes motor 210, gearbox 220 and inverter 230.Motor 210, gearbox 220 and inverter 230
Housing can be interconnected so as to form a closed shell.In addition, electric motor of automobile assembly 200 has an air inlet 212 and a gas outlet
214.When being leaked hunting, the aerating device 120 of leak detection system 100 may connect to air inlet 212, with right via air inlet 212
Electric motor of automobile assembly 200 is filled with search gas；And the getter device 130 of leak detection system 100 may connect to gas outlet 214, with warp
Gas in electric motor of automobile assembly 200 is suctioned out by gas outlet 214.Due to the aerating device 120 and getter device of leak detection system 100
130 can operate simultaneously, therefore the gas in electric motor of automobile assembly 200 can rapidly be replaced as search gas.Furthermore locate
Reason unit 150 can control the gas flow of aerating device 120 and getter device 130, so that search gas is total in electric motor of automobile
It is more than the pressure of surrounding air into the pressure in 200.After the gas in electric motor of automobile assembly 200 is replaced as search gas,
Thermal imagery acquisition device 140 can further obtain the thermal imagery of electric motor of automobile assembly 200.In the utility model, thermal imagery obtains
Take the in a unlimited number in one of device 140, the number of thermal imagery acquisition device 140 and position can according to different detecting demands and
Change.After thermal imagery acquisition device 140 obtains the thermal imagery of electric motor of automobile assembly 200, processing unit 150 can further root
Judge whether electric motor of automobile assembly 200 has leakage search gas according to the thermal imagery of electric motor of automobile assembly 200.For example, when showing
Track gas from the closed shell internal leakage of electric motor of automobile assembly 200 come out when, because the temperature of search gas is above or is less than
The predetermined number of degrees with respect of temperature one of surrounding air, processing unit 150 can according to the high temperature in the thermal imagery of electric motor of automobile assembly 200 or
Low-temperature region judges the leak position of search gas.
According to above-mentioned configuration, the utility model leak detection system 100 is using air or other easy acquirements and does not have corrosion
Property gas as search gas, therefore electric motor of automobile assembly 200 will not be caused to damage, and clear without carrying out after having leaked hunting
Wash.Furthermore electric motor of automobile assembly 200 can be inflated simultaneously for the utility model leak detection system 100 and air-breathing, with rapidly
By the gas displacement in electric motor of automobile assembly 200 into search gas, and then improve efficiency of leaking hunting.
In addition, the utility model leak detection system 100 can also include an air pressure detecting unit 160, for detecting electric motor of automobile
Air pressure in assembly 200.Processing unit 150 can be used for controlling aerating device 120 according to the detecting result of air pressure detecting unit 160
And the gas flow of getter device 130, so that a predetermined model is fixed or be stably maintained to the air pressure in electric motor of automobile assembly 200
In enclosing.In the present embodiment, air pressure detecting unit 160 is provided near the gas outlet 214 of electric motor of automobile assembly 200, but this
Utility model is not limited.Because the utility model leak detection system 100 can be inflated to electric motor of automobile assembly 200 simultaneously
And air-breathing, therefore the air pressure in electric motor of automobile assembly 200 can be controlled more accurately, to avoid in electric motor of automobile assembly 200
Air pressure is unstable.
Furthermore the utility model leak detection system 100 can also include a temperature detecting unit 170, for detecting electric motor of automobile
Gas temperature in assembly 200.Processing unit 150 can be used for controlling inflation dress according to the detecting result of temperature detecting unit 170
The gas flow of 120 and getter device 130 is put, so that the gas temperature in electric motor of automobile assembly 200 is fixed or stably maintained
In a preset range.In the present embodiment, temperature detecting unit 170 is disposed on the gas outlet 214 of electric motor of automobile assembly 200
Near, but the utility model is not limited.Because the utility model leak detection system 100 can be simultaneously to electric motor of automobile assembly
200 are inflated and air-breathing, therefore the gas temperature in electric motor of automobile assembly 200 can be controlled more accurately, to avoid automobile
Gas temperature in motor assembly 200 is unstable.
On the other hand, when being leaked hunting, electric motor of automobile assembly 200 can be seated in a subnormal ambient, make tracer gas
Body is easier to come out from the closed shell internal leakage of electric motor of automobile assembly 200, further to improve the utility model leak detection system
100 efficiency of leaking hunting.
In the above-described embodiments, the utility model leak detection system 100 is to be used to leak hunting to electric motor of automobile assembly 200,
But the utility model is not limited.The utility model leak detection system 100 can also be carried out to the housing or structure of other devices
Leak hunting.
Fig. 3 is refer to, Fig. 3 is the flow chart 300 of the utility model leak detection method.The flow of the utility model leak detection method
Such as the following steps：
Step 310：A search gas is provided, the wherein temperature of the search gas is higher or lower than the temperature of surrounding air；
Step 320：An aerating device is provided to be used to be filled with the search gas to a housing；
Step 330：A getter device is provided to be used to suction out the gas in the housing；
Step 340：Obtain the thermal imagery of the housing；And
Step 350：Judge whether the housing has according to the thermal imagery of the housing and leak the search gas.
Compared to prior art, the utility model leak detection system is leaked hunting using high temperature or cryogenic gas, therefore not
Determinand can be caused to damage, and need not be cleaned after having leaked hunting.Furthermore the utility model leak detection system can be treated simultaneously
The housing for surveying thing is inflated and air-breathing, with rapidly by the gas displacement in the housing of determinand into search gas, and accurately
Air pressure and gas temperature in the housing of ground control determinand.Therefore, the utility model leak detection system has effect of preferably leaking hunting
Rate and accuracy.
The foregoing is only the preferred embodiment of the utility model, it is all according to present utility model application the scope of the claims do it is
Deng change and modify, should all belong to the covering scope of the utility model.
Claims (7)
1. a kind of leak detection system, including：
One gas supply device, for providing a search gas, the wherein temperature of the search gas is higher or lower than surrounding air
Temperature；
One aerating device, the gas supply device is connected to, for being filled with the search gas to a housing；
One getter device, for suctioning out the gas in the housing；
One thermal imagery acquisition device, for obtaining the thermal imagery of the housing；And
One processing unit, the thermal imagery acquisition device is electrically connected to, for whether judging the housing according to the thermal imagery of the housing
Have and leak the search gas.
2. leak detection system as claimed in claim 1, wherein pressure of the search gas in the housing is more than environment sky
The pressure of gas.
3. leak detection system as claimed in claim 1, in addition to an air pressure detecting unit, for detecting the gas in the housing
Pressure, wherein the processing unit is additionally operable to control the aerating device and the suction according to the detecting result of the air pressure detecting unit
The gas flow of device of air.
4. leak detection system as claimed in claim 3, wherein the processing unit is the detecting according to the air pressure detecting unit
The gas flow of aerating device described in output control and the getter device, so that the air pressure in the housing is fixed.
5. leak detection system as claimed in claim 1, in addition to a temperature detecting unit, for detecting the gas in the housing
Temperature, wherein the processing unit is additionally operable to control the aerating device and described according to the detecting result of the temperature detecting unit
The gas flow of getter device.
6. leak detection system as claimed in claim 5, wherein the processing unit is the detecting according to the temperature detecting unit
The gas flow of aerating device described in output control and the getter device, so that the gas temperature in the housing is fixed.
7. leak detection system as claimed in claim 1, wherein the housing is placed in a subnormal ambient.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721061735.0U CN207215391U (en) | 2017-08-23 | 2017-08-23 | Leak detection system |
| TW106140200A TW201913059A (en) | 2017-08-23 | 2017-11-21 | Leak detection system and leak detection method |
| TW106217240U TWM558195U (en) | 2017-08-23 | 2017-11-21 | Leak detection system |
| US15/972,246 US20190064028A1 (en) | 2017-08-23 | 2018-05-07 | Leak detection system and leak detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721061735.0U CN207215391U (en) | 2017-08-23 | 2017-08-23 | Leak detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207215391U true CN207215391U (en) | 2018-04-10 |
Family
ID=61816333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721061735.0U Active CN207215391U (en) | 2017-08-23 | 2017-08-23 | Leak detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207215391U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238584A (en) * | 2018-09-20 | 2019-01-18 | 沈阳华德海泰电器有限公司 | Dry air or the leak hunting method of nitrogen gas insulating switchgear gas leakage |
| CN113551849A (en) * | 2021-06-23 | 2021-10-26 | 国网福建省电力有限公司南平供电公司 | Photoacoustic analysis device for preventing small animal from blocking wall by adopting trace gas to jet cable duct |
| CN115265935A (en) * | 2021-04-30 | 2022-11-01 | 宁德时代新能源科技股份有限公司 | Leakage detection method and system for box body |
-
2017
- 2017-08-23 CN CN201721061735.0U patent/CN207215391U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238584A (en) * | 2018-09-20 | 2019-01-18 | 沈阳华德海泰电器有限公司 | Dry air or the leak hunting method of nitrogen gas insulating switchgear gas leakage |
| CN115265935A (en) * | 2021-04-30 | 2022-11-01 | 宁德时代新能源科技股份有限公司 | Leakage detection method and system for box body |
| CN113551849A (en) * | 2021-06-23 | 2021-10-26 | 国网福建省电力有限公司南平供电公司 | Photoacoustic analysis device for preventing small animal from blocking wall by adopting trace gas to jet cable duct |
| CN113551849B (en) * | 2021-06-23 | 2024-01-19 | 国网福建省电力有限公司南平供电公司 | Photoacoustic analysis device for small animal blocking wall prevention by adopting tracer gas jet cable trench |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200612 Address after: 210046, two, Gangcheng Road, Longtan Town, Qixia District, Nanjing, Jiangsu Patentee after: WEIRAN (NANJING) POWER TECHNOLOGY Co.,Ltd. Address before: 200000 No. 2901, room 1438, Hongqiao Road, Changning District, Shanghai (nominal 33 floor) Patentee before: Shanghai XPT Technology Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 2 Gangcheng Road, Economic Development Zone, Nanjing City, Jiangsu Province, 210046 Patentee after: WEIRAN (NANJING) POWER TECHNOLOGY CO.,LTD. Country or region after: China Address before: No.2 Gangcheng Road, Longtan Town, Qixia District, Nanjing City, Jiangsu Province, 210046 Patentee before: WEIRAN (NANJING) POWER TECHNOLOGY CO.,LTD. Country or region before: China |