CN207502123U - Test device for air tightness - Google Patents
Test device for air tightness Download PDFInfo
- Publication number
- CN207502123U CN207502123U CN201721777437.1U CN201721777437U CN207502123U CN 207502123 U CN207502123 U CN 207502123U CN 201721777437 U CN201721777437 U CN 201721777437U CN 207502123 U CN207502123 U CN 207502123U
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- straight line
- line driving
- driving device
- test
- air tightness
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Abstract
The utility model discloses a kind of test device for air tightness, test device for air tightness includes test platform, airtight plug assembly, testing jig, first straight line driving device, air pressure detection sensor, grating sensor and controller, wherein, test platform includes installing plate, sliding rail, airtight plug assembly includes airtight stopper, fixed plate and two sliding blocks, airtight plug assembly is for sealed wiring port when detecting, testing jig includes two risers and connecting plate, first straight line driving device includes the first fixed part, first movable part and ventilating joint, first straight line driving device is used for the upper surface of sealing detection mouth, air pressure detection sensor is detecting the air pressure in vehicle electronic control unit shell, grating sensor includes photophore and light-receiving device, controller is electrically connected first straight line driving device, air pressure detection sensor and grating sensor.In test during test section activity of the someone in test device for air tightness, to ensure personal safety.
Description
Technical field
The utility model is related to electron product checking device technical field, more particularly to a kind of test device for air tightness.
Background technology
After the completion of production, often will to product carry out air-leakage test, current air-tightness testing device be all
It carries out under high pressure, if someone's maloperation enters the test section of test device for air tightness when system is tested automatically, can exist
High pressure gas is leaked out of detected product, and certain injury is generated to human body.
Utility model content
The main purpose of the utility model is to propose a kind of test device for air tightness, it is intended to when testing, improve human body operation
Safety.
To achieve the above object, the utility model proposes test device for air tightness, including：
Test platform, the installing plate being laterally extended including being located at test platform upper end, the rear end upper surface of the installing plate
Equipped between left and right every and preceding two rearwardly extending sliding rails；
Airtight plug assembly, including airtight stopper and the fixed plate being installed in the airtight stopper rear surface, the fixed plate
Left and right ends lower surface is set there are two sliding block, and two sliding blocks, which correspond to, to be slidably mounted on described two sliding rails, so that described
For airtight stopper along front and rear to moving, the airtight stopper is used for the terminals of seal automobile electronic control unit outer casing back when detecting
Mouthful；
Testing jig, the front end including being installed on the installing plate upper surface are oppositely arranged in left and right, and upward and downward extension
Two risers, the testing jig further include the connecting plate that two riser upper ends of connection are laterally extended setting, the connecting plate
Upper surface be equipped with the first relief hole；
First straight line driving device, it is described including being installed on the first fixed part of the connecting plate upper surface and in being pierced by
First movable part of the first relief hole setting, the lower end of first movable part are fixedly installed ventilating joint, and the ventilation connects
Head includes the first air inlet and connection first air inlet set on its side surface and set on the ventilating joint lower surface
Second air inlet, first air inlet enter automotive electronics control to guide detection high pressure gas via second air inlet
The detection mouth of cell enclosure upper end processed, the first straight line driving device drives the ventilating joint to move downward, for causing
The detection mouth of seal automobile electronic control unit shell when detecting；
Air pressure detection sensor is installed in vehicle electronic control unit shell, to detect vehicle electronic control unit
Air pressure in shell；
Grating sensor is mounted on described two riser trailing flanks, and the photophore being oppositely arranged in left and right including corresponding
And light-receiving device, the grating sensor are movable in the test section of the test device for air tightness for detecting someone in test
When, stop the air-leakage test to vehicle electronic control unit shell；And
Controller is electrically connected the first straight line driving device, air pressure detection sensor and grating sensor.
Preferably, the upper surface correspondence of the installing plate is equipped with the second relief hole between two sliding rails；
The test device for air tightness further includes second straight line driving device, and the second straight line driving device is installed on institute
The lower surface of installing plate, front and rear the second fixed part and the second movable part to distribution are stated, the upper end of second movable part passes through
Second relief hole is fixedly connected with the fixed plate, and the second straight line driving device driving airtight plug assembly is before and after
To movement, for the Wiring port of seal automobile electronic control unit outer casing back when detecting.
Preferably, the second straight line driving device is one kind in cylinder, electric pushrod or oil cylinder.
Preferably, the first straight line driving device is one kind in cylinder, electric pushrod or oil cylinder.
Preferably, it further includes：
Two guide rods of upward and downward extension, described two guide rods are arranged at intervals in left and right, and are fixedly installed in described
Between connecting plate and the installing plate；
Two guide sleeves, corresponding sliding sleeve are set on described two guide rods；And
To the balance pressure plare of extension, the left and right ends of the balance pressure plare are fixed on described two guide sleeves for left and right
Lateral surface, the lower surface of the balance pressure plare are fixedly attached to the upper surface of the ventilating joint.
Preferably, two stop collars are further included, described two stop collar correspondences are sheathed on the lower end of described two guide rods,
To limit the downward stroke of the first straight line driving device.
Preferably, it further includes positioned at the lower section of the balance pressure plare, and two limiting plates that upward and downward is extended, institute
The lower end for stating two limiting plates is fixedly installed in the upper surface of the installing plate, and the upper end of described two limiting plates is in described in correspondence
The left and right ends lower surface setting of pressure plare is balanced, to limit the downward stroke of the first straight line driving device.
Preferably, the material of the airtight stopper is rubber.
Preferably, the ventilating joint lower face is downwardly convex is equipped with annular protrusion, and the annular protrusion is being installed on vapour
In the detection mouth of vehicle electronic control unit shell upper end, the lateral surface of the annular protrusion is equipped with annular groove；
The test device for air tightness further includes O-ring, is installed in the annular groove, to seal vapour when detecting
The detection mouth of vehicle electronic control unit shell upper end.
Preferably, first air inlet is in towards a left side or towards right setting.
In technical solution provided by the utility model, the airtight plug assembly is controlled electronically for seal automobile when detecting
The Wiring port of cell enclosure rear end, the first straight line driving device are used to cause the ventilating joint and automobile when detecting
Two facing surfaces sealing of the detection mouth of electronic control unit shell upper end is amplexiformed, when the high pressure gas of detection is from described the
When one air inlet is entered in vehicle electronic control unit shell, outside the air pressure detection sensor detection vehicle electronic control unit
Air pressure in shell, in detection process, assist grating sensor, for detect test when someone in the test device for air tightness
Test section activity when, stop the air-leakage test to vehicle electronic control unit shell, to ensure personal safety.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other attached drawings can also be obtained according to the structure shown in these attached drawings.
Fig. 1 is the stereoscopic schematic diagram of vehicle electronic control unit shell；
Fig. 2 is the stereoscopic schematic diagram of an embodiment of test device for air tightness provided by the utility model；
Fig. 3 is that the right side of test device for air tightness in Fig. 2 regards schematic diagram；
Fig. 4 is the stereoscopic schematic diagram of ventilating joint in Fig. 2.
Drawing reference numeral explanation：
| Label | Title | Label | Title |
| 100 | Test device for air tightness | 432 | Second air inlet |
| 1 | Test platform | 433 | Annular protrusion |
| 11 | Installing plate | 433a | Annular groove |
| 111 | Second relief hole | 6 | Grating sensor |
| 12 | Sliding rail | 61 | Photophore |
| 2 | Airtight plug assembly | 62 | Light-receiving device |
| 21 | Airtight stopper | 7 | Second straight line driving device |
| 22 | Fixed plate | 71 | Second fixed part |
| 23 | Sliding block | 72 | Second movable part |
| 3 | Testing jig | 8 | Guide rod |
| 31 | Riser | 9 | Guide sleeve |
| 32 | Connecting plate | 10a | Balance pressure plare |
| 4 | First straight line driving device | 20a | Stop collar |
| 41 | First fixed part | 30a | O-ring |
| 42 | First movable part | 100a | Vehicle electronic control unit shell |
| 43 | Ventilating joint | 101a | Wiring port |
| 431 | First air inlet | 102a | Detection mouth |
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that described embodiment is only the part of the embodiment rather than whole of the utility model
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work premise
Lower all other embodiments obtained, shall fall within the protection scope of the present invention.
If it is to be appreciated that relating to directionality instruction in the utility model embodiment, directionality instruction is only used for solving
Relative position relation, motion conditions under a certain particular pose between each component etc. are released, if the particular pose changes
When, then directionality instruction also correspondingly changes correspondingly.
It if, should " first ", " the in addition, relate to the description of " first ", " second " etc. in the utility model embodiment
Two " etc. description is only used for description purpose, and it is not intended that instruction or implying its relative importance or implicit indicating meaning
The quantity of the technical characteristic shown." first " is defined as a result, the feature of " second " can express or implicitly include at least one
A this feature.In addition, the technical solution between each embodiment can be combined with each other, but must be with ordinary skill
Personnel can be implemented as basis, and this technical side is will be understood that when the combination appearance of technical solution is conflicting or can not realize
The combination of case is not present, also not within the protection domain of the requires of the utility model.
The utility model proposes a kind of test device for air tightness, Fig. 1 is test specimen automobile electricity to be measured provided by the utility model
The part drawing of sub-control unit shell, Fig. 2 to Fig. 4 are showing for an embodiment of test device for air tightness provided by the utility model
It is intended to.
Referring to Fig. 1, the rear end of vehicle electronic control unit shell 100a has Wiring port 101a, need to make when detecting
Encapsulation process, vehicle electronic control unit shell 100a front ends upper surface has detection mouth 102a, to inject high pressure gas,
Encapsulation process need to equally be made during detection.
Also referring to Fig. 2 to Fig. 3, the test device for air tightness 100 includes test platform 1, airtight plug assembly 2, surveys
Frame 3, first straight line driving device 4, air pressure detection sensor (not shown), grating sensor 6 and controller (not shown) are tried,
In, the test platform 1 includes being located at the installing plate 11 that is laterally extended of 1 upper end of test platform, on the rear end of the installing plate 11
Surface be equipped between left and right every and preceding two rearwardly extending sliding rails 12, the airtight plug assembly 2 include airtight stopper 21 and being installed on
Fixed plate 22 in 21 rear surface of airtight stopper, the left and right ends lower surface of the fixed plate 22 are set there are two sliding block 23, and two
A sliding block 23 correspondence is slidably mounted on described two sliding rails 12, so that the airtight stopper 21 is along front and rear to moving, it is described
Airtight stopper 21 is for the Wiring port 101a of seal automobile electronic control unit shell 100a rear ends when detecting, the testing jig
3 front ends for including being installed on 11 upper surface of installing plate are oppositely arranged in left and right, and two risers 31 of upward and downward extension, institute
State testing jig 3 and further include two 31 upper ends of riser of connection and be laterally extended the connecting plate 32 of setting, the connecting plate 32 it is upper
End face is equipped with the first relief hole (not shown), and the first straight line driving device 4 includes being installed on 32 upper surface of connecting plate
The first fixed part 41 and in the first movable part 42 for being pierced by the first relief hole (not shown) setting, first activity
The lower end in portion 42 is fixedly installed ventilating joint 43, and the ventilating joint 43 includes the first air inlet 431 set on its side surface
And connect first air inlet 431 and the second air inlet 432 for being set on 43 lower surface of ventilating joint, first air inlet
Mouth 431 enters via second air inlet 432 on vehicle electronic control unit shell 100a to guide detection high pressure gas
The detection mouth 102a at end, the first straight line driving device 4 drive the ventilating joint 43 to move downward, for detecting
When seal automobile electronic control unit shell 100a detection mouth 102a, the air pressure detection sensor (not shown) is installed on vapour
In vehicle electronic control unit shell 100a, to detect the air pressure in vehicle electronic control unit shell 100a, the grating passes
Sensor 6 include it is corresponding be mounted on described two 31 trailing flanks of riser, and the photophore 61 and light-receiving device 62 being oppositely arranged in left and right,
The grating sensor 6 for detect test when someone in the test section activity of the test device for air tightness 100 when, stop
To the air-leakage test of vehicle electronic control unit shell 100a, the controller (not shown) is electrically connected the first straight line
Driving device 4, air pressure detection sensor (not shown) and grating sensor 6.
In technical solution provided by the utility model, the airtight plug assembly 2 is used for seal automobile electronics control when detecting
The Wiring port 101a of cell enclosure 100a rear ends processed, the first straight line driving device 4 is for so that described logical when detecting
Two facing surfaces sealing of the detection mouth 102a of gas connector 43 and vehicle electronic control unit shell 100a upper ends is amplexiformed, when
When the high pressure gas of detection is out of first air inlet 431 entrance vehicle electronic control unit shell 100a, the air pressure inspection
Air pressure in sensor detection vehicle electronic control unit shell 100a is surveyed, in detection process, grating sensor 6 is assisted, is used for
Detection test when someone in the test section activity of the test device for air tightness 100 when, stop to vehicle electronic control unit
The air-leakage test of shell 100a, to ensure personal safety.
Specifically, Fig. 2 and Fig. 3 are please referred to, the upper surface correspondence of the installing plate 11 is set between two sliding rails 12
There is the second relief hole 111, the test device for air tightness 100 further includes second straight line driving device 7, the second straight line driving
Device 7 is installed on the lower surface of the installing plate 11, including front and rear the second fixed part 71 and the second movable part 72 to distribution, institute
The upper end for stating the second movable part 72 is fixedly connected with the fixed plate 22 across second relief hole 111, and the second straight line is driven
Dynamic device 7 drives the airtight plug assembly 2 along front and rear to moving, for seal automobile electronic control unit shell when detecting
The Wiring port 101a of 100a rear ends drives the airtight plug assembly 2 front and rear to shifting by the second straight line driving device 7
It is dynamic, the automation clamping of detection is realized, reduces manual operation, manually-operated uneasy full probability is reduced, has preferable
Effect.
In embodiment provided by the utility model, the first straight line driving device 4 realizes the linear motion of upward and downward,
So that two facing surfaces of the ventilating joint 43 and the detection mouth 102a of vehicle electronic control unit shell 100a upper ends
Sealing is amplexiformed, and the second straight line driving device 7 realizes sagittal linear motion, for seal automobile electronics when detecting
The Wiring port 101a of control unit shell 100a rear ends, as long as it can realize the first straight line driving device 4 and described
The structure of two linear drive apparatus 7 linear motion is all the content of the utility model, specifically, the first straight line driving dress
4 are put as one kind in cylinder, electric pushrod or oil cylinder, the second straight line driving device 7 is in cylinder, electric pushrod or oil cylinder
One kind, carry out air tightness test when high pressure gas can be supplied to cylinder power, it is preferable that provided by the utility model
In embodiment, the first straight line driving device 4 and the second straight line driving device 7 are cylinder.
In order to ensure the stationarity of the linear motion of 4 upward and downward of first straight line driving device, the utility model provides
Technical solution in, the test device for air tightness 100 further include two guide rods, 8, two guide sleeves 9 and balance pressure plare
10a, wherein, each guide rod 8 extends in upward and downward, and two guide rods 8 are arranged at intervals in left and right, and is fixedly mounted
Between the connecting plate 32 and the installing plate 11, two guide sleeves 9 correspond to sliding sleeve and are set on described two guide rods 8
On, for the balance pressure plare 10a in left and right to being extended, the left and right ends of the balance pressure plare 10a are fixed on described two
The lateral surface of a guide sleeve 9, the lower surface of the balance pressure plare 10a are fixedly attached to the upper surface of the ventilating joint 43,
The first straight line driving device 4 drives the balance pressure plare 10a to move in parallel downwards so that under the ventilating joint 43
The entire end force of end face is balanced, can be bonded completely when being overlaid on detection mouth 102a upper surfaces, ensure that the close of junction
Feng Xing.
In order to which detected vehicle electronic control unit shell 100a is protected not damaged, while be not required to due to overvoltage
When testing, the first straight line driving device 4 will not due to maloperation test platform 1 described in crushing, need described in limiting
The stroke that first straight line driving device 4 pushes, in embodiment provided by the utility model, as long as the first straight line can be limited
The stroke that driving device 4 pushes all is range that the utility model includes, in embodiment provided by the utility model, plays limiting
The structure for the stroke that the first straight line driving device 4 pushes can be two stop collar 20a, and correspondence is sheathed on the guide rod
8 lower end or two limiting plate (not shown), the left and right ends lower surface setting of the corresponding balance pressure plare 10a.
Specifically, the test device for air tightness 100 includes two stop collar 20a, and correspondence is sheathed on the guide rod 8
Lower end is realized and limits the downward stroke of the first straight line driving device 4；Alternatively, the test device for air tightness 100 includes position
In the lower section of the balance pressure plare 10a, and two limiting plate (not shown) that upward and downward is extended, described two limiting plates
The lower end of (not shown) is fixedly installed in the upper surface of the installing plate 11, and the upper end of described two limiting plate (not shown) is in pair
The left and right ends lower surface setting of the balance pressure plare 10a is answered, realizes and limits the downward row of the first straight line driving device 4
Journey, two embodiments, which can be realized, limits the downward stroke of the first straight line driving device 4, and the utility model is not limited to
State embodiment.
The airtight stopper 21 is to sealed wiring port 101a, it is desirable that the airtight stopper 21 is in interference in Wiring port 101a
Coordinate, in embodiment provided by the utility model, the material of the airtight stopper 21 is rubber, and the airtight stopper 21 can deform close
It is sealed in Wiring port 101a and realizes preferably sealing.
In order to further reduce the air pressure of test device for air tightness 100 leakage, embodiment provided by the utility model
In, referring to Fig. 4,43 lower face of the ventilating joint is downwardly convex to be equipped with annular protrusion 433, the annular protrusion 433 is installed on
In the detection mouth 102a of vehicle electronic control unit shell 100a upper ends, the lateral surface of the annular protrusion 433 is recessed equipped with annular
Slot 433a, the test device for air tightness 100 further include O-ring 30a, are installed in the annular groove 433a, to examine
The detection mouth 102a of seal automobile electronic control unit shell 100a upper ends during survey, passes through the O-ring 30a sealing detection mouths
102a by the end face of the 4 sealing detection mouth 102a of first straight line driving device, plays the effect of dual-seal.
It is friendly in order to facilitate injection high pressure gas and to people's safety, in embodiment provided by the utility model, described first
Air inlet 431 is in towards a left side or towards right setting, and first air inlet 431 is not configured to non-face tester direction, in pressure release or
When person's gas leaks, the probability of the injury to the person is reduced.
The above is only the preferred embodiment of the present invention, and it does not limit the scope of the patent of the present invention,
It is every under the design of the utility model, equivalent structure transformation made based on the specification and figures of the utility model or
Directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.
Claims (10)
- A kind of 1. test device for air tightness, for detecting the air-tightness of vehicle electronic control unit shell, which is characterized in that packet It includes：Test platform, the installing plate being laterally extended including being located at test platform upper end, the rear end upper surface of the installing plate are equipped with Between left and right every and preceding two rearwardly extending sliding rails；Airtight plug assembly, including airtight stopper and the fixed plate being installed in the airtight stopper rear surface, the left and right of the fixed plate Both ends lower surface is set there are two sliding block, and two sliding blocks, which correspond to, to be slidably mounted on described two sliding rails, so that described airtight For plug along front and rear to moving, the airtight stopper is used for the Wiring port of seal automobile electronic control unit outer casing back when detecting；Testing jig, the front end including being installed on the installing plate upper surface are oppositely arranged in left and right, and two of upward and downward extension Riser, the testing jig further include two riser upper ends of connection and are laterally extended the connecting plate of setting, the connecting plate it is upper End face is equipped with the first relief hole；First straight line driving device, including being installed on the first fixed part of the connecting plate upper surface and in being pierced by described first First movable part of relief hole setting, the lower end of first movable part is fixedly installed ventilating joint, the ventilating joint packet Include the first air inlet and connection first air inlet set on its side surface and set on the second of the ventilating joint lower face Air inlet, first air inlet enter Vehicle Electronic Control list to guide detection high pressure gas via second air inlet The detection mouth of first shell upper end, the first straight line driving device drives the ventilating joint to move downward, for examining The detection mouth of seal automobile electronic control unit shell during survey；Air pressure detection sensor is installed in vehicle electronic control unit shell, to detect vehicle electronic control unit shell Interior air pressure；Grating sensor, including the corresponding photophore being oppositely arranged mounted on described two riser trailing flanks and in left and right and by Light device when the grating sensor is for detecting test section activity of the someone in the test device for air tightness in test, stops Only to the air-leakage test of vehicle electronic control unit shell；AndController is electrically connected the first straight line driving device, air pressure detection sensor and grating sensor.
- 2. test device for air tightness as described in claim 1, which is characterized in that the upper surface correspondence of the installing plate is at two The second relief hole is equipped between the sliding rail；The test device for air tightness further includes second straight line driving device, and the second straight line driving device is installed on the peace The lower surface of loading board, including front and rear the second fixed part and the second movable part to distribution, the upper end of second movable part passes through Second relief hole is fixedly connected with the fixed plate, and the second straight line driving device driving airtight plug assembly is before and after To movement, for the Wiring port of seal automobile electronic control unit outer casing back when detecting.
- 3. test device for air tightness as claimed in claim 2, which is characterized in that the second straight line driving device for cylinder, One kind in electric pushrod or oil cylinder.
- 4. test device for air tightness as described in claim 1, which is characterized in that the first straight line driving device for cylinder, One kind in electric pushrod or oil cylinder.
- 5. test device for air tightness as described in claim 1, which is characterized in that further include：Two guide rods of upward and downward extension, described two guide rods are arranged at intervals in left and right, and are fixedly installed in the connection Between plate and the installing plate；Two guide sleeves, corresponding sliding sleeve are set on described two guide rods；AndTo the balance pressure plare of extension, the left and right ends of the balance pressure plare are fixed on the outside of described two guide sleeves for left and right Face, the lower surface of the balance pressure plare are fixedly attached to the upper surface of the ventilating joint.
- 6. test device for air tightness as claimed in claim 5, which is characterized in that further include two stop collars, described two limits The corresponding lower end for being sheathed on described two guide rods of position set, to limit the downward stroke of the first straight line driving device.
- 7. test device for air tightness as claimed in claim 5, which is characterized in that further include under the balance pressure plare Two limiting plates that side and upward and downward are extended, the lower end of described two limiting plates are fixedly installed in the upper table of the installing plate Face, the upper end of described two limiting plates is set in the left and right ends lower surface of the corresponding balance pressure plare, described to limit The downward stroke of first straight line driving device.
- 8. test device for air tightness as described in claim 1, which is characterized in that the material of the airtight stopper is rubber.
- 9. test device for air tightness as described in claim 1, which is characterized in that the ventilating joint lower face is downwardly convex to be equipped with Annular protrusion, the annular protrusion is to be installed in the detection mouth of vehicle electronic control unit shell upper end, the convex annular The lateral surface risen is equipped with annular groove；The test device for air tightness further includes O-ring, is installed in the annular groove, to the electricity of seal automobile when detecting The detection mouth of sub-control unit shell upper end.
- 10. test device for air tightness as described in claim 1, which is characterized in that first air inlet is in towards a left side or towards the right side Setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721777437.1U CN207502123U (en) | 2017-12-14 | 2017-12-14 | Test device for air tightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721777437.1U CN207502123U (en) | 2017-12-14 | 2017-12-14 | Test device for air tightness |
Publications (1)
| Publication Number | Publication Date |
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| CN207502123U true CN207502123U (en) | 2018-06-15 |
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ID=62509220
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| CN201721777437.1U Active CN207502123U (en) | 2017-12-14 | 2017-12-14 | Test device for air tightness |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112326152A (en) * | 2020-11-23 | 2021-02-05 | 南通名濠新能源科技有限公司 | Electronic component airtightness testing device |
-
2017
- 2017-12-14 CN CN201721777437.1U patent/CN207502123U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112326152A (en) * | 2020-11-23 | 2021-02-05 | 南通名濠新能源科技有限公司 | Electronic component airtightness testing device |
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