CN108489678A - A kind of hole sealing structure of motor housing leak-testing apparatus - Google Patents
A kind of hole sealing structure of motor housing leak-testing apparatus Download PDFInfo
- Publication number
- CN108489678A CN108489678A CN201810165278.2A CN201810165278A CN108489678A CN 108489678 A CN108489678 A CN 108489678A CN 201810165278 A CN201810165278 A CN 201810165278A CN 108489678 A CN108489678 A CN 108489678A
- Authority
- CN
- China
- Prior art keywords
- sealing
- motor housing
- cabinet
- water
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
-
- 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
- G01M3/32—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 containers, e.g. radiators
- G01M3/3209—Details, e.g. container closure devices
-
- 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
- G01M3/32—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 containers, e.g. radiators
- G01M3/3236—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 containers, e.g. radiators by monitoring the interior space of the containers
- G01M3/3272—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 containers, e.g. radiators by monitoring the interior space of the containers for verifying the internal pressure of closed containers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The present invention provides a kind of hole sealing structures of motor housing leak-testing apparatus, belong to detection technique field.It solves the technical problems such as existing motor housing leak-testing apparatus accuracy deficiency.This motor housing leak-testing apparatus includes cabinet, the bottom of cabinet is fixed with water tank, portion in the chassis is arranged in this hole sealing structure, including several groups, the seal assembly on cabinet outer wall is set, every group of seal assembly includes telescopic cylinder, sealing strip and sealing column, telescopic cylinder is fixed on the outer wall of cabinet and the telescopic rod of telescopic cylinder horizontally extends into cabinet, sealing strip is in strip arc, the side of sealing strip evagination and the telescopic rod of telescopic cylinder are fixed, sealing column is fixed in the middle part of the side of sealing strip indent, the grafting of sealing column energy is sealed in the corresponding hole of motor housing when sealing strip is sealed against with motor housing.The present invention has the advantages that realize the sealing of the motor housing Hole in water filling performing leak test.
Description
Technical field
The invention belongs to detection technique fields, are related to a kind of hole sealing structure of motor housing leak-testing apparatus.
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 the present invention is there is the above problem in view of the prior art, it is proposed that a kind of motor housing sealing propertytest
The hole sealing structure of equipment, present invention solves the technical problem that being that can realize the motor housing mesoporous in water filling performing leak test
The sealing in hole.
Object of the invention can be realized by the following technical scheme：
A kind of hole sealing structure of motor housing leak-testing apparatus, detection device includes cabinet, the cabinet
Bottom is fixed with water tank, and monitor station is fixed in the cabinet, and detection boss is rotatably connected in the middle part of the monitor station, special
Sign is, this hole sealing structure setting portion in the chassis, including several groups are arranged the seal assembly on cabinet outer wall, every group
Seal assembly includes telescopic cylinder, sealing strip and sealing column, and the telescopic cylinder is fixed on the outer wall of cabinet and flexible gas
The telescopic rod of cylinder horizontally extends into cabinet, and the sealing strip is in strip arc, the side of the sealing strip evagination and telescopic cylinder
Telescopic rod fix, the sealing column is fixed in the middle part of the side of sealing strip indent, the sealing strip and motor housing sealing paste
By when the sealing column energy grafting be sealed in the corresponding hole of motor housing.
Every group of seal assembly corresponds to a hole on motor housing when use, passes through telescopic cylinder after motor housing positioning
Push sealing strip to motor housing, sealing strip sticks on motor housing, while sealing column grafting is sealed on corresponding hole,
It realizes the sealing to motor housing hole, ensures in motor housing sealing propertytest to be that water will not be from the hole stream of motor housing
Go out.
In the hole sealing structure of above-mentioned motor housing leak-testing apparatus, the edge of the sealing strip is with convex
It rises and sealed batten in a ring, the sealing column is located at the inside of sealed batten, the interior sealing portion is arc-shaped, described close
The bottom that strip of paper used for sealing is located at sealing column has interior sealing portion in disk form, the thickness of the thickness and sealed batten in the interior sealing portion
It is identical.In sealing, sealed batten and the motor housing of sealing strip recline sealing, while interior sealing portion and corresponding hole periphery
Motor housing reclines sealing and sealing column is plugged to corresponding hole；Triple seal is realized by above structure, is ensured outside to motor
The sealing in housing hole hole.
In the hole sealing structure of above-mentioned motor housing leak-testing apparatus, two are embedded in the sealing strip
Sizing strip, two sizing strips are made of steel plate, and two sizing strips are arc-shaped bending.It is protected by two sizing strips
Card sealing strip is arc-shaped and ensures the intensity of sealing strip, and the sealed batten on sealing strip can be made closely against in motor housing
On.
In the hole sealing structure of above-mentioned motor housing leak-testing apparatus, the end of the sealing column is in bulb
Shape.The structure can facilitate sealing column to be inserted into the corresponding hole of motor housing.
In the hole sealing structure of above-mentioned motor housing leak-testing apparatus, opened up in the middle part of the detection boss
There is limbers, the lower section that monitor station is located in the cabinet is equipped with lower crane, and water filling is vertically fixed on the lower crane
Pipe, the water injection pipe pass through monitor station and stretch into limbers and the outer wall of water injection pipe can with the inner wall sealing of limbers, it is described
Water injection pipe is connected to by water pipe and water tank, and water pump is fixed in the water tank, and the water outlet port of the water pump is connected to water pipe.
In the hole sealing structure of above-mentioned motor housing leak-testing apparatus, the limbers is located at detection boss
The aperture of upper end is sealing necking, and the upper end of the water injection pipe has the sealed end in truncated cone-shaped, is cased on the sealed end close
Sealing cover, when the sealed end of the water injection pipe is inserted into sealing necking, the seal closure can seal against the inner wall of sealing necking
On.It is avoided that water flows out between water injection pipe and limbers after charging by above structure, ensures motor casing when water filling detection
Internal hydraulic pressure.
In the hole sealing structure of above-mentioned motor housing leak-testing apparatus, the hypomere of the sealing necking opens up
There is the card slot of annular, inner seal ring, the inner wall of the inside protrusion sealing necking of the inner seal ring, institute are offered on the card slot
The upper side for stating the inner wall of inner seal ring protrusion sealing necking is upper sealing ring face, and the diameter in the upper sealing ring face is from up to down
It is gradually reduced, the lower face of the seal closure is lower sealing ring face, and sealing necking when institute is inserted into the sealed end of the water injection pipe
Stating lower sealing ring face can lean on upper sealing ring face paste.The sealing between water injection pipe and limbers can be further increased with this configuration
Intensity is avoided that water flows out between water injection pipe and limbers after charging, ensures the hydraulic pressure in electric machine casing when water filling detection.
Compared with prior art, the hole sealing structure of this motor housing leak-testing apparatus has and can realize in water filling
In performing leak test the advantages of the sealing of motor housing Hole.
Description of the drawings
Fig. 1 is the schematic cross-sectional view of this motor housing leak-testing apparatus.
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
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention 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.
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.
This hole sealing structure is arranged is arranged the sealing group on 1 outer wall of cabinet at the middle part of cabinet 1, including several groups
Part, every group of seal assembly include telescopic cylinder 9, sealing strip 91 and sealing column 93, and the end of sealing column 93 is in bulb shape, is stretched
Cylinder 9 is fixed on the outer wall of cabinet 1 and the telescopic rod of telescopic cylinder 9 horizontally extends into cabinet 1, and sealing strip 91 is in strip arc
Shape, the side of 91 evagination of sealing strip and the telescopic rod of telescopic cylinder 9 are fixed, and sealing column 93 is fixed on the side of 91 indent of sealing strip
Middle part, when sealing strip 91 is sealed against with motor housing sealing column 93 can grafting be sealed in the corresponding hole of motor housing.
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.
Specific embodiment described herein is only an example for the spirit of the invention.Technology belonging to the present invention is led
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (7)
1. a kind of hole sealing structure of motor housing leak-testing apparatus, detection device includes cabinet, the bottom of the cabinet
Portion is fixed with water tank, and monitor station is fixed in the cabinet, detection boss, feature are rotatably connected in the middle part of the monitor station
It is, portion in the chassis is arranged in this hole sealing structure, including the seal assembly on cabinet outer wall is arranged in several groups, and every group close
Sealing assembly includes telescopic cylinder, sealing strip and sealing column, and the telescopic cylinder is fixed on the outer wall of cabinet and telescopic cylinder
Telescopic rod horizontally extend into cabinet, the sealing strip is in strip arc, the side of the sealing strip evagination and telescopic cylinder
Telescopic rod is fixed, and the sealing column is fixed in the middle part of the side of sealing strip indent, and the sealing strip is sealed against with motor housing
Shi Suoshu sealing column energy grafting is sealed in the corresponding hole of motor housing.
2. the hole sealing structure of motor housing leak-testing apparatus according to claim 1, which is characterized in that described
The edge of sealing strip has protrusion and sealed batten in a ring, and the sealing column is located at the inside of sealed batten, described interior close
Envelope portion is arc-shaped, and the bottom that the sealing strip is located at sealing column has interior sealing portion in disk form, the interior sealing portion
Thickness is identical as the thickness of sealed batten.
3. the hole sealing structure of motor housing leak-testing apparatus according to claim 2, which is characterized in that described
Two sizing strips are embedded in sealing strip, two sizing strips are made of steel plate, and two sizing strips are arc-shaped curved
Folding.
4. the hole sealing structure of motor housing leak-testing apparatus according to claim 2, which is characterized in that described
The end of sealing column is in bulb shape.
5. the hole sealing structure of motor housing leak-testing apparatus according to claim 1, which is characterized in that 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 water pump, the water outlet of the water pump are fixed in the water tank
Port is connected to water pipe.
6. the hole sealing structure of motor housing leak-testing apparatus according to claim 5, which is characterized in that described
The aperture that limbers is located at detection boss upper end is sealing necking, and the upper end of the water injection pipe has the sealed end in truncated cone-shaped,
It is cased with seal closure on the sealed end, the seal closure can seal against when the sealed end of the water injection pipe is inserted into sealing necking
On the inner wall of sealing necking.
7. the hole sealing structure of motor housing leak-testing apparatus according to claim 6, which is characterized in that described
The hypomere of sealing necking offers the card slot of annular, offers inner seal ring on the card slot, the inside of the inner seal ring is convex
Go out to seal the inner wall of necking, the upper side of the inner wall of the inner seal ring protrusion sealing necking is upper sealing ring face, described close
The diameter in seal ring face is gradually reduced from up to down, and the lower face of the seal closure is lower sealing ring face, in the close of the water injection pipe
Sealing end can lean in the lower sealing ring face when being inserted into sealing necking with upper sealing ring face paste.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810165278.2A CN108489678A (en) | 2018-02-28 | 2018-02-28 | A kind of hole sealing structure of motor housing leak-testing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810165278.2A CN108489678A (en) | 2018-02-28 | 2018-02-28 | A kind of hole sealing structure of motor housing leak-testing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108489678A true CN108489678A (en) | 2018-09-04 |
Family
ID=63340912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810165278.2A Withdrawn CN108489678A (en) | 2018-02-28 | 2018-02-28 | A kind of hole sealing structure of motor housing leak-testing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108489678A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116858436A (en) * | 2023-09-04 | 2023-10-10 | 常州宝捷电机制造有限公司 | Tightness detection device for motor detection |
-
2018
- 2018-02-28 CN CN201810165278.2A patent/CN108489678A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116858436A (en) * | 2023-09-04 | 2023-10-10 | 常州宝捷电机制造有限公司 | Tightness detection device for motor detection |
| CN116858436B (en) * | 2023-09-04 | 2023-11-28 | 常州宝捷电机制造有限公司 | Tightness detection device for motor detection |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180904 |