CN207832390U - A kind of detection device of motor housing leakproofness - Google Patents
A kind of detection device of motor housing leakproofness Download PDFInfo
- Publication number
- CN207832390U CN207832390U CN201820280388.9U CN201820280388U CN207832390U CN 207832390 U CN207832390 U CN 207832390U CN 201820280388 U CN201820280388 U CN 201820280388U CN 207832390 U CN207832390 U CN 207832390U
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- Prior art keywords
- sealing
- motor housing
- water
- fixed
- cabinet
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Abstract
The utility model provides a kind of detection device of motor housing leakproofness, belongs to detection technique field.It solves the technical problems such as the detection accuracy deficiency of existing motor housing leakproofness.The detection device of this motor housing leakproofness includes cabinet, the bottom of cabinet is fixed with water tank, monitor station is fixed in cabinet, detection boss is rotatably connected in the middle part of monitor station, it detects boss and is equipped with the lower sealing structure that the lower port of motor housing can be sealed, limbers is offered in the middle part of detection boss, lower crane is equipped in cabinet, it is vertically fixed on lower crane and is connected to water injection pipe with water tank, water injection pipe passes through monitor station and can be with the inner wall sealing of limbers, the top liftable of cabinet is equipped with upper crane, the middle part of upper crane is equipped with can be by the closed upper sealing structure of the upper port of motor housing, the middle part of cabinet is equipped with the middle sealing structure that can seal the hole of motor housing.The utility model has the advantages that the accuracy of motor housing sealing propertytest can be improved.
Description
Technical field
The utility model belongs to detection technique field, is related to a kind of detection device of motor housing leakproofness.
Background technology
Motor housing is made of casting technique, and motor housing is casting, and casting can have micropore, it is therefore desirable to
Being sealed property of motor housing is detected, the motor housing with micropore is screened.The detection mode used at present is to adopt
It is carried out with the mode of airtight detection, what general air-leakage test was mainly realized by detecting the variation of air pressure, but air pressure
Detection there is fluctuation, cause some defect wares by by or certified products screened out, detection accuracy is insufficient.
Invention content
The purpose of this utility model is the presence of the above problem in view of the prior art, it is proposed that a kind of motor housing leakproofness
Detection device, the utility model solve the technical issues of be the accuracy that can improve motor housing sealing propertytest.
The purpose of this utility model can be realized by following technical proposal：
A kind of detection device of motor housing leakproofness, including cabinet, which is characterized in that the bottom of the cabinet is fixed with
Water tank is fixed with monitor station in the cabinet, and detection boss is rotatably connected in the middle part of the monitor station, and detection boss is equipped with
The lower sealing structure that can be sealed the lower port of motor housing when the motor housing is placed on vertically on detection boss, it is described
Limbers is offered in the middle part of detection boss, the lower section that monitor station is located in the cabinet is equipped with lower crane, the lower lifting
It is vertically fixed water injection pipe on frame, the water injection pipe passes through monitor station and stretches into limbers and the outer wall energy of water injection pipe and water flowing
The inner wall sealing in hole, the water injection pipe are connected to by water pipe and water tank, and the top liftable of the cabinet is equipped with upper crane, institute
The middle part for stating crane lower end is equipped with and can set the closed upper sealing structure of the upper port of motor housing in the middle part of the cabinet
There is the middle sealing structure that the hole of motor housing can be sealed.
Motor housing is placed on detection boss by manipulator when detection, by detecting the lower sealing structure on boss
The lower port of motor housing is sealed, while rotating detection boss and motor housing is made to turn to detection station, middle sealing at this time
Structure can seal the hole in the middle part of motor housing, then descend crane to move down and make upper sealing structure by the upper end of motor housing
Mouth is closed, and the opening on motor housing is all sealed at this time, and water injection pipe rises under the drive of lower crane and penetrates limbers
Interior, the water filling into motor housing after water injection pipe and the inner wall sealing of limbers fills and keeps certain in the motor housing after water
Hydraulic pressure is observed on motor housing either with or without infiltration, if not seeping water, motor housing is certified products, if infiltration, for defect ware,
Motor housing is discharged by manipulator, completes detection；The detection to motor housing leakproofness is realized by high pressure water, it can be accurate
Detect on motor housing whether there is micropore, improve the accuracy of detection.
In the detection device of above-mentioned motor housing leakproofness, water pump is fixed in the water tank, the water pump goes out
Water end (W.E.) mouth is connected to water pipe.
In the detection device of above-mentioned motor housing leakproofness, the upper crane is plate-like, in the upper crane
The both sides up and down in portion all have boss, and the top vertical of the cabinet is fixed with lifting cylinder, and the upper lifting cylinder is stretched
The boss that contracting bar is located at upside with upper crane is fixed, and the upper crane, which is located on the boss of downside, is provided with fixed groove, institute
It includes gasket to state sealing structure, and the gasket is fixed in fixed groove.Pass through the upper end of gasket and motor housing
It seals against to realize that the sealing to the upper port of motor housing, upper crane can provide the pretightning force being pressed downward in sealing,
So that the epimere of gasket and motor housing is closely against guarantee sealing effect.
In the detection device of above-mentioned motor housing leakproofness, rotation slot, the inspection are provided in the middle part of the monitor station
It surveys boss to be rotatably connected in rotation slot, is arranged on the outside of the detection boss and is fixed with ring gear, be located on the monitor station and turn
The side of dynamic slot, which is embedded, is fixed with driving motor, and driving gear, the sliding tooth are fixed on the motor shaft of the driving motor
Wheel is engaged with ring gear.By driving motor energy fine rotational rotating boss, to will be located into the motor housing on rotating boss
Detection station is turned to, ensures sealing of the motor housing in water filling.
In the detection device of above-mentioned motor housing leakproofness, the lower sealing structure includes sealing shroud and external seal
Circle, the sealing shroud include tubular sealing shroud portion and are integrally formed in the diaphragm seal portion of sealing shroud portion one end, the sealing
Set portion, which is arranged, to be fixed on detection boss, and the diaphragm seal portion and the upper side of detection boss seal against, the exterior seal ring
It is sleeved on the junction in diaphragm seal portion and sealing shroud portion.When mounted, electric machine casing is sleeved on sealing shroud, the inner wall meeting of electric machine casing
Sealed with sealing shroud portion, the lower face of electric machine casing is sealed with diaphragm seal portion, the lower port of exterior seal ring and electric machine casing it is interior
Edge seals against, and realizes sealing by three seals face, ensures the sealing of electric machine casing lower port.
In the detection device of above-mentioned motor housing leakproofness, there is rib in a ring, institute on the detection boss
It states and forms water receiving tank between rib and detection boss, several collector nozzles are provided on the rib, lower water is fixed on the cabinet
The lower end of pipeline, the sewer pipe is connected to water tank, and the upper end of the sewer pipe, which is fixed, is communicated with water guiding ring, the water guide
Guiding gutter is provided on the medial surface of ring, the sewer pipe is connected to guiding gutter, and the water guiding ring is sleeved on rib and water guiding ring
Guiding gutter be connected to several collector nozzles, pass through two seal ring seals, two sealing rings between the water guiding ring and rib
It is located at the both sides up and down of guiding gutter.Upon completion of the assays, water drippage is had on the electric machine casing of taking-up, the water of drippage passes through
Water receiving tank is unified to be recycled, and the water of recycling flows out water receiving tank by collector nozzle and flows into water guiding ring, and the water in water guiding ring passes through water guide
Slot flow to sewer pipe, is finally recycled in water tank；Water guiding ring can be connected to collector nozzle always when detecting boss rotation, water guide
Ring and detection boss ensure to seal when relatively rotating by sealing ring.
In the detection device of above-mentioned motor housing leakproofness, the middle sealing structure includes that several groups are arranged in cabinet
Seal assembly on outer wall, every group of seal assembly include telescopic cylinder, sealing strip and sealing column, and the telescopic cylinder is fixed on
On the outer wall of cabinet and the telescopic rod of telescopic cylinder horizontally extends into cabinet, and the sealing strip is in strip arc, the sealing strip
The side of evagination and the telescopic rod of telescopic cylinder are fixed, and the sealing column is fixed in the middle part of the side of sealing strip indent, described close
The sealing column energy grafting is sealed in the corresponding hole of motor housing when strip of paper used for sealing is sealed against with motor housing.When use every group it is close
Sealing assembly corresponds to a hole on motor housing, is pushed sealing strip outside motor to by telescopic cylinder after motor housing positioning
Shell, sealing strip stick on motor housing, while sealing column grafting is sealed on corresponding hole, realize to motor housing hole
Sealing, ensure in motor housing sealing propertytest to be that water will not be flowed out from the hole of motor housing.
Compared with prior art, the detection device of this motor housing leakproofness, which has, can improve motor housing sealing propertytest
Accuracy the advantages of.
Description of the drawings
Fig. 1 is the schematic cross-sectional view of the detection device of this motor housing leakproofness.
Fig. 2 is the close-up schematic view and partial enlarged view in the portions A in Fig. 1.
Fig. 3 is the close-up schematic view in the portions B in Fig. 1.
In figure, 1, cabinet；11, monitor station；2, water tank；21, water pump；22, water pipe；3, boss is detected；31, limbers；32、
Seal necking；33, card slot；34, inner seal ring；35, upper sealing ring face；4, lower crane；41, water injection pipe；42, seal closure；5、
Upper crane；51, upper lifting cylinder；52, gasket；53, mounting groove；54, roll shaft；55, pressure sensor；6, driving motor；
61, gear is driven；62, ring gear；63, steel ball；7, sealing shroud；71, sealing shroud portion；72, diaphragm seal portion；73, exterior seal ring；8, it keeps off
Side；81, water receiving tank；82, collector nozzle；83, sewer pipe；84, water guiding ring；85, guiding gutter；86, sealing ring；9, telescopic cylinder；
91, sealing strip；92, sealed batten；93, sealing column；94, interior sealing portion；95, sizing strip.
Specific implementation mode
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figure 1 to Figure 3, the detection device of motor housing leakproofness includes cabinet 1, and the bottom of cabinet 1 is fixed with water
Case 2 is fixed with monitor station 11 in cabinet 1, and the middle part of monitor station 11 is rotatably connected to detection boss 3, and detection boss 3 is equipped with energy
The lower sealing structure for sealing the lower port of motor housing when motor housing is placed on vertically on detection boss 3, detects boss 3
Middle part offer limbers 31, be equipped with lower crane 4 positioned at the lower section of monitor station 11 in cabinet 1, it is solid vertically on lower crane 4
Surely there is a water injection pipe 41, water injection pipe 41 passes through monitor station 11 and stretches into limbers 31 and the outer wall of water injection pipe 41 can be with limbers 31
Inner wall sealing, water injection pipe 41 is connected to by water pipe 22 with water tank 2, and water pump 21, the water outlet port of water pump 21 are fixed in water tank 2
It is connected to water pipe 22, the top liftable of cabinet 1 is equipped with upper crane 5, and the middle part of 5 lower end of upper crane is equipped with can will be outside motor
The closed upper sealing structure of upper port of shell, the middle part of cabinet 1 are equipped with the middle sealing structure that can seal the hole of motor housing.
Upper crane 5 is plate-like, and the both sides up and down at 5 middle part of upper crane all have boss, and the top vertical of cabinet 1 is fixed
There are upper lifting cylinder 51, the boss that the telescopic rod of upper lifting cylinder 51 is located at upside with upper crane 5 to fix, upper crane 5
In being provided with fixed groove on the boss of downside, upper sealing structure includes gasket 52, and gasket 52 is fixed in fixed groove.It is logical
It crosses gasket 52 and the upper end of motor housing seals against to realize the sealing to the upper port of motor housing, 5 energy of upper crane
The pretightning force being pressed downward is provided in sealing so that the epimere of gasket 52 and motor housing is closely against guarantee sealing effect.
Four sides of upper crane 5 are provided with the mounting groove 53 opened up along corresponding long side, and roll shaft is rotatably connected in mounting groove 53
54, the outside protrusion mounting groove 53 and inner wall corresponding with cabinet 1 of roll shaft 54 roll connection.Upper crane 5 is located at the convex of downside
Pressure sensor 55 is fixed on platform, pressure sensor 55 wears gasket 52.Pressure sensor 55 can incude hydraulic pressure after charging,
The hydraulic pressure of induction is sent to server to judge, the case where there are leakproofness deficiency leaks if hydraulic pressure is smaller.
The middle part of monitor station 11 is provided with rotation slot, and detection boss 3 is rotatably connected in rotation slot, detects the outside of boss 3
It is arranged and is fixed with ring gear 62, be embedded positioned at the side of rotation slot on monitor station 11 and be fixed with driving motor 6, the electricity of driving motor 6
Driving gear 61 is fixed on arbor, driving gear 61 is engaged with ring gear 62.It is rotated by 6 energy fine rotational of driving motor convex
Platform ensures sealing of the motor housing in water filling to which the motor housing that will be located on rotating boss turns to detection station.
The interior corner of rotation slot offers several rolling recesses, and the lower corner of detection boss 3 is provided with rolling in a ring
Groove is moved, the groove face of rolling groove is spherical surface, and each rolling, which is determined to roll in recess, is connected with steel ball 63, and it is recessed that steel ball 63 protrudes into rolling
Mouthful, the part that steel ball 63 protrudes into rolling recess rolls embedded roll into groove.It can realize that detection boss 3 rotates by above structure
Be connected on monitor station 11 and ensure detect boss 3 rotate it is smooth.
The aperture that limbers 31 is located at 3 upper end of detection boss is sealing necking 32, and it is in round platform that the upper end of water injection pipe 41, which has,
The sealed end of shape is cased with seal closure 42 on sealed end, 42 energy of seal closure when the sealed end of water injection pipe 41 is inserted into sealing necking 32
On the inner wall for sealing against sealing necking 32.It is avoided that water is from water injection pipe 41 and limbers 31 after charging by above structure
Between flow out, ensure water filling detection when electric machine casing in hydraulic pressure.
The hypomere of sealing necking 32 offers the card slot 33 of annular, and inner seal ring 34, inner seal ring are offered on card slot 33
The inner wall of 34 inside protrusion sealing necking 32, the upper side of the inner wall of the protrusion sealing necking 32 of inner seal ring 34 is upper sealing ring
The diameter in face 35, upper sealing ring face 35 is gradually reduced from up to down, and the lower face of seal closure 42 is 86 face of lower sealing ring, in water filling
86 face of lower sealing ring can recline with upper sealing ring face 35 when the sealed end of pipe 41 is inserted into sealing necking 32.It with this configuration can be into one
Step increases the sealing intensity between water injection pipe 41 and limbers 31, be avoided that after charging water from water injection pipe 41 and limbers 31 it
Between flow out, ensure water filling detection when electric machine casing in hydraulic pressure.
Lower sealing structure includes sealing shroud 7 and exterior seal ring 73, and sealing shroud 7 includes tubular sealing shroud portion 71 and one
Be molded over the diaphragm seal portion 72 of 71 one end of sealing shroud portion, sealing shroud portion 71, which is arranged, to be fixed on detection boss 3, diaphragm seal portion 72 with
The upper side of detection boss 3 seals against, and exterior seal ring 73 is sleeved on the junction in diaphragm seal portion 72 and sealing shroud portion 71.It is installing
When, electric machine casing is sleeved on sealing shroud 7, and the inner wall of electric machine casing can be sealed with sealing shroud portion 71, the lower face of electric machine casing with
Diaphragm seal portion 72 seals, and exterior seal ring 73 and the inside edge of the lower port of electric machine casing seal against, by three seals face come
It realizes sealing, ensures the sealing of electric machine casing lower port.
It detects with rib 8 in a ring on boss 3, formation water receiving tank 81 between rib 8 and detection boss 3, on rib 8
Several collector nozzles 82 are provided with, sewer pipe 83 is fixed on cabinet 1, the lower end of sewer pipe 83 is connected to water tank 2, sewer pipe
83 upper end is fixed and is communicated with water guiding ring 84, and guiding gutter 85, sewer pipe 83 and guiding gutter are provided on the medial surface of water guiding ring 84
85 connections, water guiding ring 84 is sleeved on rib 8 and the guiding gutter of water guiding ring 84 85 is connected to several collector nozzles 82,84 He of water guiding ring
It is sealed by two sealing rings 86 between rib 8, two sealing rings 86 are located at the both sides up and down of guiding gutter 85.It is detecting
Cheng Hou has water drippage on the electric machine casing of taking-up, and the water of drippage is recycled by the way that water receiving tank 81 is unified, and the water of recycling passes through lower water
Mouth 82 flows out water receiving tanks 81 and flows into water guiding ring 84, and the water in water guiding ring 84 flow to sewer pipe 83 by guiding gutter 85, finally
It is recycled in water tank 2；Water guiding ring 84 can be connected to collector nozzle 82 always when detecting boss 3 and rotating, and water guiding ring 84 and detection are convex
Platform 3 ensures to seal when relatively rotating by sealing ring 86.
Middle sealing structure includes the seal assembly that several groups are arranged on 1 outer wall of cabinet, and every group of seal assembly includes stretching
The end of contracting cylinder 9, sealing strip 91 and sealing column 93, sealing column 93 is in bulb shape, and telescopic cylinder 9 is fixed on the outer wall of cabinet 1
Upper and telescopic cylinder 9 telescopic rod horizontally extends into cabinet 1, and sealing strip 91 is in strip arc, the side of 91 evagination of sealing strip with
The telescopic rod of telescopic cylinder 9 is fixed, and sealing column 93 is fixed in the middle part of the side of 91 indent of sealing strip, sealing strip 91 and motor housing
93 energy grafting of sealing column is sealed in the corresponding hole of motor housing when sealing against.
The edge of sealing strip 91 has protrusion and sealed batten 92 in a ring, sealing column 93 are located at the interior of sealed batten 92
Side, interior sealing portion 94 are arc-shaped, and the bottom that sealing strip 91 is located at sealing column 93 has interior sealing portion 94 in disk form, interior close
The thickness in envelope portion 94 is identical as the thickness of sealed batten 92.In sealing, the sealed batten 92 of sealing strip 91 reclines with motor housing
Sealing, while interior sealing portion 94 and the motor housing on corresponding hole periphery recline sealing and sealing column 93 is plugged to corresponding hole；
Triple seal is realized by above structure, ensures the sealing to motor housing hole.
Two sizing strips 95 are embedded in sealing strip 91, two sizing strips 95 are made of steel plate, and two sizing strips 95 are in
Arc-shaped bending.Ensure that sealing strip 91 is arc-shaped and ensures the intensity of sealing strip 91 by two sizing strips 95, it can be so that close
Sealed batten 92 on strip of paper used for sealing 91 is closely against on motor housing.
Every group of seal assembly corresponds to a hole on motor housing when use, passes through telescopic cylinder after motor housing positioning
9 push sealing strip 91 to motor housing, and sealing strip 91 sticks on motor housing, at the same 93 grafting of sealing column be sealed in it is corresponding
On hole, realizes the sealing to motor housing hole, ensure in motor housing sealing propertytest to be that water will not be from motor housing
Hole flows out.
Motor housing is placed on detection boss 3 by manipulator when detection, by detecting the lower sealing knot on boss 3
Structure seals the lower port of motor housing, while rotating detection boss 3 so that motor housing turns to detection station, at this time in it is close
Seal structure can seal the hole in the middle part of motor housing, then descend crane 4 to move down and make upper sealing structure by motor housing
Upper port is closed, and the opening on motor housing is all sealed at this time, and water injection pipe 41 rises and penetrates under the drive of lower crane 4
In limbers 31, the water filling into motor housing after water injection pipe 41 and the inner wall sealing of limbers 31 fills outside the motor after water
Certain hydraulic pressure is kept in shell, is observed on motor housing either with or without infiltration, if not seeping water, motor housing is certified products, if infiltration,
It is then defect ware, motor housing is discharged by manipulator, completes detection；It is realized to motor housing leakproofness by high pressure water
Detection can accurately detect to whether there is micropore on motor housing, improve the accuracy of detection.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (7)
1. a kind of detection device of motor housing leakproofness, including cabinet, which is characterized in that the bottom of the cabinet is fixed with water
Case is fixed with monitor station in the cabinet, and detection boss is rotatably connected in the middle part of the monitor station, and detection boss is equipped with energy
The lower sealing structure for sealing the lower port of motor housing when the motor housing is placed on vertically on detection boss, the inspection
It surveys in the middle part of boss and offers limbers, lower crane, the lower crane are equipped with positioned at the lower section of monitor station in the cabinet
On be vertically fixed water injection pipe, the water injection pipe passes through monitor station and stretches into limbers and the outer wall energy of water injection pipe and limbers
Inner wall sealing, the water injection pipe is connected to by water pipe and water tank, and the top liftable of the cabinet is equipped with upper crane, described
The middle part of upper crane lower end is equipped with can be by the closed upper sealing structure of the upper port of motor housing, and the middle part of the cabinet is equipped with
The middle sealing structure that the hole of motor housing can be sealed.
2. the detection device of motor housing leakproofness according to claim 1, which is characterized in that be fixed in the water tank
The water outlet port of water pump, the water pump is connected to water pipe.
3. the detection device of motor housing leakproofness according to claim 1, which is characterized in that the upper crane is in plate
Shape, the both sides up and down in the middle part of the upper crane all have boss, and the top vertical of the cabinet is fixed with lifting cylinder, institute
The telescopic rod for stating lifting cylinder is located at the boss of upside with upper crane and fixes, and the upper crane is located on the boss of downside
It is provided with fixed groove, the upper sealing structure includes gasket, and the gasket is fixed in fixed groove.
4. the detection device of motor housing leakproofness according to claim 1, which is characterized in that the middle part of the monitor station
It is provided with rotation slot, the detection boss is rotatably connected in rotation slot, is arranged on the outside of the detection boss and is fixed with ring gear, institute
It states the side on monitor station positioned at rotation slot to be embedded and be fixed with driving motor, driving is fixed on the motor shaft of the driving motor
Gear, the driving gear are engaged with ring gear.
5. the detection device of motor housing leakproofness according to claim 4, which is characterized in that the lower sealing structure packet
Sealing shroud and exterior seal ring are included, the sealing shroud includes tubular sealing shroud portion and is integrally formed in the close of sealing shroud portion one end
Mounting portion, the sealing shroud portion, which is arranged, to be fixed on detection boss, the upper side sealing paste in the diaphragm seal portion and detection boss
It leans on, the exterior seal ring is sleeved on the junction in diaphragm seal portion and sealing shroud portion.
6. the detection device of motor housing leakproofness according to claim 4, which is characterized in that have on the detection boss
There is rib in a ring, forms water receiving tank between the rib and detection boss, several collector nozzles are provided on the rib, it is described
Sewer pipe is fixed on cabinet, the lower end of the sewer pipe is connected to water tank, and connection is fixed in the upper end of the sewer pipe
There is water guiding ring, guiding gutter is provided on the medial surface of the water guiding ring, the sewer pipe is connected to guiding gutter, the water guide ring set
On rib and the guiding gutter of water guiding ring is connected to several collector nozzles, passes through two sealing rings between the water guiding ring and rib
Sealing, two sealing rings are located at the both sides up and down of guiding gutter.
7. the detection device of motor housing leakproofness according to claim 1, which is characterized in that the middle sealing structure packet
Including the seal assembly that several groups are arranged on cabinet outer wall, every group of seal assembly includes telescopic cylinder, sealing strip and sealing column,
The telescopic cylinder is fixed on the outer wall of cabinet and the telescopic rod of telescopic cylinder horizontally extends into cabinet, and the sealing strip is in length
Arc, the side of the sealing strip evagination and the telescopic rod of telescopic cylinder are fixed, and the sealing column is fixed on sealing strip indent
Side in the middle part of, to be sealed in motor housing corresponding for the sealing column energy grafting when being sealed against with motor housing for the sealing strip
Hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820280388.9U CN207832390U (en) | 2018-02-28 | 2018-02-28 | A kind of detection device of motor housing leakproofness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820280388.9U CN207832390U (en) | 2018-02-28 | 2018-02-28 | A kind of detection device of motor housing leakproofness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207832390U true CN207832390U (en) | 2018-09-07 |
Family
ID=63398226
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820280388.9U Expired - Fee Related CN207832390U (en) | 2018-02-28 | 2018-02-28 | A kind of detection device of motor housing leakproofness |
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| Country | Link |
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| CN (1) | CN207832390U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115541129A (en) * | 2022-04-07 | 2022-12-30 | 无锡吉冈精密科技股份有限公司 | New energy automobile motor housing gas tightness testing arrangement |
-
2018
- 2018-02-28 CN CN201820280388.9U patent/CN207832390U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115541129A (en) * | 2022-04-07 | 2022-12-30 | 无锡吉冈精密科技股份有限公司 | New energy automobile motor housing gas tightness testing arrangement |
| CN115541129B (en) * | 2022-04-07 | 2023-11-07 | 无锡吉冈精密科技股份有限公司 | New energy automobile motor housing gas tightness testing arrangement |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180907 Termination date: 20200228 |
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| CF01 | Termination of patent right due to non-payment of annual fee |