CN204439303U - Leak test plant - Google Patents
Leak test plant Download PDFInfo
- Publication number
- CN204439303U CN204439303U CN201420765478.9U CN201420765478U CN204439303U CN 204439303 U CN204439303 U CN 204439303U CN 201420765478 U CN201420765478 U CN 201420765478U CN 204439303 U CN204439303 U CN 204439303U
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- Prior art keywords
- leak test
- test plant
- product
- pad
- unit
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- 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.)
- Expired - Fee Related
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- 238000012360 testing method Methods 0.000 title claims abstract description 42
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 230000000740 bleeding effect Effects 0.000 claims abstract description 5
- 230000001939 inductive effect Effects 0.000 claims description 29
- 239000000523 sample Substances 0.000 claims description 29
- 210000003454 tympanic membrane Anatomy 0.000 claims description 13
- 238000001514 detection method Methods 0.000 abstract description 6
- 239000000428 dust Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000030808 detection of mechanical stimulus involved in sensory perception of sound Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model discloses a kind of leak test plant, in order to the sealing property of the inner chamber of testing product, described product comprises inner chamber and forms the pressure deformation portion of a part of described inner chamber wall portion, deformation is produced when described pressure deformation portion changes in order to the pressure differential between the inner chamber and the space at product place of described product, described leak test plant comprises in order to accommodating described product and can be inflated or/and the closed chamber of bleeding, and the pick-up unit of deformation in order to the pressure deformation portion of detecting described product, described pick-up unit can the air pressure in described closed chamber when changing, by detecting the deformation situation in the pressure deformation portion of described product, just can detect the sealing property drawing described product, therefore, this practical leakage detection apparatus leak detection provided is simple and quick.
Description
Technical field
The utility model relates to leak hunting technology field, particularly relates to a kind of leak test plant that can be used for detecting the product comprising sound equipment.
Background technology
Along with the market demand, in increasing sound equipment, propose waterproof requirement, how Waterproof sound product is carried out effectively detecting efficiently in production operation, this checkout equipment just in the urgent need to there being a kind of testing product whether to meet waterproof requirement.
The water resistance of traditional detection of sound and a kind of important method of sealing property are that product is placed in water, and whether after a setting-up time, observe product and leak, so, in the process of the water proofing property of detection of sound, water can damage sound equipment.
For this reason, also there is the mode detected by air pressure in industry, but existing air pressure detection method, and the method detecting air pressure balance cannot be quick and simple and effectively to detect.
Utility model content
Fundamental purpose of the present utility model is to provide a kind of leak test plant, be intended to solve current air pressure detection method detect the method for air pressure balance cannot quick and simple and effective problem of carrying out detecting.
For arriving above-mentioned technical purpose, the utility model provides a kind of leak test plant, in order to testing product sealing property, described product comprises inner chamber and forms the pressure deformation portion of a part of described inner chamber wall portion, produce deformation when described pressure deformation portion changes in order to the pressure differential between the inner chamber and the space at product place of described product, described leak test plant comprises in order to accommodating described product and can be inflated or/and the pick-up unit of the closed chamber of bleeding and the deformation in order to the pressure deformation portion of detecting described product.
Preferably, described product is loudspeaker or passive radiator, and described pressure deformation portion is the eardrum of described loudspeaker or passive radiator or the parts that are fixedly connected with described eardrum and move together with described eardrum.
Preferably, described leak test plant also comprises the warn device be electrically connected with described pick-up unit, the deformation quantity that described warn device detects according to described pick-up unit and export corresponding alert messages.
Preferably, described pick-up unit comprises the inductive probe be placed in described closed chamber and the driven unit driving described inductive probe to move up in first party, described inductive probe is in order to send sensing signal when being touched by described pressure deformation portion, and described first direction is close after described product is placed in described closed chamber or deviates from the direction in described pressure deformation portion.
Preferably, described driven unit comprises drive unit and connects the gear train of described drive unit and described inductive probe.
Preferably, described drive unit is device of rotation driving, and described gear train is in order to be converted into the rectilinear motion of described inductive probe on described first direction by the rotation of described device of rotation driving.
Preferably, described gear train comprise be connected with the rotating shaft of described device of rotation driving worm gear, to be meshed with worm gear and the worm screw extended along described first direction and to be fixedly connected with described worm screw and also along the feeler lever that described first direction extends, described inductive probe is installed on one end away from described worm screw of described feeler lever.
Preferably, described pick-up unit also comprises the mount pad installed for described drive unit, described mount pad is fixedly installed on the outer wall on described first direction of described closed chamber, described device of rotation driving is fixedly installed on described mount pad, and described worm screw is movably arranged on described mount pad in described first direction.
Preferably, described mount pad comprises the first back up pad on the outer wall on described first direction being installed on institute's closed chamber, to be fixedly connected with described first back up pad and in the second back up pad be oppositely arranged, connect the guide pillar of described first back up pad and described second back up pad setting, and the installing plate be slidably connected between described first back up pad and described second back up pad and with described guide pillar, described device of rotation driving is fixedly installed on the surface of relatively described first back up pad of described second back up pad, described worm screw is fixedly connected with described installing plate, described feeler lever is fixedly connected with described worm screw with described installing plate by connecting link.
Preferably, described leak test plant also comprises the closing cap that pick-up unit described in cover cap is arranged, and the outer wall on described first direction of described closing cap and institute's closed chamber is tightly connected.
The utility model provides a kind of leak test plant, in order to the sealing property of the inner chamber of testing product, described product comprises inner chamber and forms the pressure deformation portion of a part of described inner chamber wall portion, deformation is produced when described pressure deformation portion changes in order to the pressure differential between the inner chamber and the space at product place of described product, described leak test plant comprises in order to accommodating described product and can be inflated or/and the closed chamber of bleeding, and the pick-up unit of deformation in order to the pressure deformation portion of detecting described product, described pick-up unit can the air pressure in described closed chamber when changing, by detecting the deformation situation in the pressure deformation portion of described product, just can detect the sealing property drawing described product, therefore, this practical leakage detection apparatus leak detection provided is simple and quick.
Accompanying drawing explanation
The perspective exploded view of one embodiment of the leak test plant that Fig. 1 provides for the utility model;
Fig. 2 is the perspective view of the pick-up unit of the leak test plant shown in Fig. 1;
Fig. 3 is the partial cutaway view schematic of the leak test plant shown in Fig. 1 when hunting leak and before inflation;
Fig. 4 is the partial cutaway view schematic of the leak test plant shown in Fig. 1 when hunting leak and after inflation.
The realization of the utility model object, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
The technical solution of the utility model is further illustrated below in conjunction with Figure of description and specific embodiment.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction
The utility model provides a kind of leak test plant, one embodiment of the leak test plant that Fig. 1 to Fig. 4 provides for the utility model, refer to Fig. 1 to Fig. 4, described leak test plant is in order to testing product sealing property, described product comprises the pressure deformation portion of a part for inner chamber and formation inner chamber wall portion, deformation is produced when described pressure deformation portion changes in order to the pressure differential between the inner chamber and the space at product place of described product, in the present embodiment, described product can be loudspeaker 201 or the passive radiator of sound equipment 200, then correspondingly, described pressure deformation portion can be described sound equipment 200 loudspeaker 201 eardrum (also the can be described as vibrating diaphragm) 201a of passive radiator or other be fixedly connected with eardrum 201a and the parts moved together with eardrum 201a as diaphragm, dust cap 201b etc., particularly, in the present embodiment, described pressure deformation portion is described dust cap 201b, dust cap, the frame (meaning not shown in the figures out) of eardrum and correspondence forms inner chamber together, obviously, the product that described product also can be other types such as opening is plugged with the airtight container etc. of plug, wherein the wall portion of inner chamber does not limit is the wall portion with the housing of cavity of one-body molded formation and traditional wall portion, and be interpreted as each several part of the inner chamber enclosing formation one sealing, namely the wall portion of described inner chamber comprises housing or arranges with housing split and coordinates with the lid forming closed cavity as plug with described housing.
Described leak test plant 100 comprises in order to accommodating described product and can be inflated or/and the pick-up unit 2 of the closed chamber 1 of bleeding and the deformation in order to the pressure deformation portion of detecting described product.Refer to Fig. 3 and Fig. 4, described closed chamber 1 is provided with an air intake opening 11, described closed chamber 1 can be inflated by described air intake opening 11 or be bled (in the present embodiment, inflate in described closed chamber 1 mainly through air intake opening), described pick-up unit 2 can the air pressure in described closed chamber 1 when changing, as to as described in closed chamber 1 inflate after, by detecting the deformation situation in the pressure deformation portion of described product, just can detect the sealing property drawing described product: when the final deformation quantity in the pressure deformation portion of described product reaches the first setting value, show that the sealing property of described product is out of question, final deformation quantity when the pressure deformation portion of described product reaches the second setting value, show the sealing existing problems of described product, detailed introduction is had after detailed process.
Described leak test plant 100 also comprises the warn device (not shown) be electrically connected with described pick-up unit 2 further, and described warn device is in order to export corresponding alert messages when described pick-up unit 2 detects the deformation in described pressure deformation portion.Described warn device can be acousto-optic warn device as warning light or hummer etc., be that the warning light comprising red light and green light explains for described warn device below, when described pick-up unit 2 detects that the final deformation quantity in described pressure deformation portion arrives the first setting value, it is air tight to show described product that described pick-up unit 2 triggers described green light, when described pick-up unit 2 detects that the final deformation quantity in described pressure deformation portion arrives the second setting value, described pick-up unit 2 triggers described when red to show that described product leaks gas, the visible further part of detailed process.
In the present embodiment, described pick-up unit 2 realizes especially by following structure: described pick-up unit 2 comprises the inductive probe 21 be placed in described closed chamber 1, and the driven unit (non-label) driving described inductive probe 21 to move up in first party, described inductive probe 21 is in order to produce induced signal when being touched by pressure deformation portion, particularly, in the present embodiment, be be connected with described eardrum 201a and the dust cap 201b moved together with eardrum 201a with the pressure deformation portion that described inductive probe 21 contacts, be convenient to the installation of inductive probe 21 like this, described inductive probe 21 can be change-over switch, when described inductive probe 21 is touched, described change-over switch switches to the branch road at described red light place, to make described when red, when described inductive probe 21 is not touched, described change-over switch switches to the branch road at described green light place, to make described green light.Described first direction is close after described product is placed in described closed chamber 1 or deviates from the direction in described pressure deformation portion, and refer to Fig. 1, in the present embodiment, described first direction is above-below direction, all explains for upward and downward below.Obviously, the design is not limited thereto, described pick-up unit 2 also can by other means as optoelectronic switch detect as described in the deformation in pressure deformation portion.
Described driven unit comprises drive unit 22 and connects the gear train 23 of described drive unit 22 and described inductive probe 21.In the present embodiment, described drive unit 22 is device of rotation driving 22, described gear train 23 is in order to be converted into the rectilinear motion up and down of described inductive probe 21 by the rotation of described device of rotation driving 22, obvious the design is not limited thereto, described drive unit 22 also can be linear drive apparatus as cylinder or oil cylinder etc., then now, described inductive probe 21 can be directly located on the push rod of described drive unit 22.
In the present embodiment, described gear train 23 can be realized by following structure: described gear train 23 comprise be connected with the rotating shaft of described device of rotation driving 22 worm gear 231, to be meshed with worm gear 231 and the worm screw 232 extended along upward and downward and to be fixedly connected with described worm screw 232 and also along the feeler lever 233 that upward and downward extends, described inductive probe 21 is installed on the lower end of described feeler lever 233, described device of rotation driving 22 can be motor, drive described worm gear 231 to rotate by the rotation of described device of rotation driving 22, move up and down to make described worm screw 232.Obviously, the design is not limited thereto, and described gear train 23 also can be ball screw framework etc.
In the present embodiment, described pick-up unit 2 also comprises the mount pad 24 installed for described drive unit 22, described mount pad 24 is fixedly installed on the outside surface of the upper wall of described closed chamber 1, described device of rotation driving 22 is fixedly installed on described mount pad 24, and described worm screw 232 can be movably arranged on described mount pad 24 in upward and downward.Particularly, described mount pad 24 comprises the first back up pad 241 on the outside surface of the upper wall being installed on institute's closed chamber 1, to be fixedly connected with described first back up pad 241 and in the second back up pad 242 be oppositely arranged, connect described first back up pad 241 and described second back up pad 242 and present the guide pillar 243 that downward-extension arranges, and the installing plate 244 be slidably connected between described first back up pad 241 and described second back up pad 242 and with described guide pillar 243, described device of rotation driving 22 is fixedly installed on the surface of relatively described first back up pad 241 of described second back up pad 242, described worm screw 232 is fixedly connected with described installing plate 244, described feeler lever 233 is fixedly connected with described worm screw 232 with described installing plate 244 by connecting link 245.
In the present embodiment, described leak test plant 100 also comprises the closing cap 3 that pick-up unit 2 described in cover cap is arranged, described closing cap 3 is tightly connected with the upper wall of institute's closed chamber 1, particularly, sealed silicon offset plate 4 is established, to be sealed with the junction of the upper wall of described closed chamber 1 by described closing cap 3 between the lower end of described closing cap 3 and the upper wall of described closed chamber 1.
Whether the detection of sound 200 briefly introducing the leak test plant 100 that the utility model provides below in conjunction with accompanying drawing 1 to Fig. 4 leaks gas the process of i.e. water resistance:
First, sound equipment 200 is placed in described closed chamber 1, during state of nature, the initial position of described dust cap 201b is set to S1, as Fig. 3 shows;
But moved down and dust cap 201b described in precompressed by described inductive probe 21, the precompressed position of described dust cap 201b is set to S2, and described inductive probe 21 is stagnated in described precompressed position S2, as Fig. 4 shows;
Then, hydraulic pressure intensity is inflated in described closed chamber 1, described eardrum 201a and described dust cap 201b can sink away from described inductive probe 21 by described closed chamber 1 internal gas pressure, pressurize one setting-up time, the pressure of the atmospheric pressure in described closed chamber 1 and the inner chamber of described sound equipment 200 can reach new balance, and the final settling position of described dust cap 201b is set to S3:
If described dust cap 201b keeps sinking, the described inductive probe 21 being positioned at S2 position is not triggered, and gives a green light, then show described sound equipment 200 good seal performance and meet waterproof requirement, as shown in Figure 4;
If described dust cap 201b first sinks return to warning induction point afterwards, the described inductive probe 21 being positioned at S2 position is triggered warning induction point, sends out a warning, points out described sound equipment 200 not meet water resistance, not shown.
These are only preferred embodiment of the present utility model; not thereby its scope of the claims is limited; every utilize the utility model instructions and accompanying drawing content to do equivalent structure or equivalent flow process conversion; directly or indirectly be used in the technical field that other are relevant, be all in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. a leak test plant, in order to testing product sealing property, described product comprises inner chamber and forms the pressure deformation portion of a part of described inner chamber wall portion, deformation is produced when described pressure deformation portion changes in order to the pressure differential between the inner chamber and the space at product place of described product, it is characterized in that, described leak test plant comprises in order to accommodating described product and can be inflated or/and the pick-up unit of the closed chamber of bleeding and the deformation in order to the pressure deformation portion of detecting described product.
2. leak test plant as claimed in claim 1, it is characterized in that, described product is loudspeaker or passive radiator, and described pressure deformation portion is the eardrum of described loudspeaker or passive radiator or the parts that are fixedly connected with described eardrum and move together with described eardrum.
3. leak test plant as claimed in claim 1, it is characterized in that, described leak test plant also comprises the warn device be electrically connected with described pick-up unit, the deformation quantity that described warn device detects according to described pick-up unit and export corresponding alert messages.
4. leak test plant as claimed in claim 1, it is characterized in that, described pick-up unit comprises the inductive probe be placed in described closed chamber and the driven unit driving described inductive probe to move up in first party, described inductive probe is in order to send sensing signal when being touched by described pressure deformation portion, and described first direction is close after described product is placed in described closed chamber or deviates from the direction in described pressure deformation portion.
5. leak test plant as claimed in claim 4, it is characterized in that, described driven unit comprises drive unit and connects the gear train of described drive unit and described inductive probe.
6. leak test plant as claimed in claim 5, it is characterized in that, described drive unit is device of rotation driving, and described gear train is in order to be converted into the rectilinear motion of described inductive probe on described first direction by the rotation of described device of rotation driving.
7. leak test plant as claimed in claim 6, it is characterized in that, described gear train comprise be connected with the rotating shaft of described device of rotation driving worm gear, to be meshed with worm gear and the worm screw extended along described first direction and to be fixedly connected with described worm screw and also along the feeler lever that described first direction extends, described inductive probe is installed on one end away from described worm screw of described feeler lever.
8. leak test plant as claimed in claim 7, it is characterized in that, described pick-up unit also comprises the mount pad installed for described drive unit, described mount pad is fixedly installed on the outer wall on described first direction of described closed chamber, described device of rotation driving is fixedly installed on described mount pad, and described worm screw is movably arranged on described mount pad in described first direction.
9. leak test plant as claimed in claim 8, it is characterized in that, described mount pad comprises the first back up pad on the outer wall on described first direction being installed on institute's closed chamber, to be fixedly connected with described first back up pad and in the second back up pad be oppositely arranged, connect the guide pillar of described first back up pad and described second back up pad setting, and the installing plate be slidably connected between described first back up pad and described second back up pad and with described guide pillar, described device of rotation driving is fixedly installed on the surface of relatively described first back up pad of described second back up pad, described worm screw is fixedly connected with described installing plate, described feeler lever is fixedly connected with described worm screw with described installing plate by connecting link.
10. leak test plant as claimed in claim 8, is characterized in that, described leak test plant also comprises the closing cap that pick-up unit described in cover cap is arranged, and the outer wall on described first direction of described closing cap and institute's closed chamber is tightly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420765478.9U CN204439303U (en) | 2014-12-04 | 2014-12-04 | Leak test plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420765478.9U CN204439303U (en) | 2014-12-04 | 2014-12-04 | Leak test plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204439303U true CN204439303U (en) | 2015-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420765478.9U Expired - Fee Related CN204439303U (en) | 2014-12-04 | 2014-12-04 | Leak test plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204439303U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107135456A (en) * | 2017-04-27 | 2017-09-05 | 歌尔丹拿音响有限公司 | Audio amplifier gas leak detection device and method, computer-readable recording medium |
| CN109313100A (en) * | 2016-06-30 | 2019-02-05 | 株式会社开滋 | Valve pressure-proof inspection device and its inspection method and hydrogen detection unit |
| CN110361145A (en) * | 2019-07-19 | 2019-10-22 | 成都市鹰诺实业有限公司 | A kind of askew amount method air tightness detection equipment |
| CN112360434A (en) * | 2020-12-08 | 2021-02-12 | 中国石油天然气股份有限公司 | Method for judging and identifying water-resisting oil production effect |
| CN112504546A (en) * | 2020-11-11 | 2021-03-16 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Method and system for testing air pressure in wafer-level airtight packaged micro cavity |
-
2014
- 2014-12-04 CN CN201420765478.9U patent/CN204439303U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109313100A (en) * | 2016-06-30 | 2019-02-05 | 株式会社开滋 | Valve pressure-proof inspection device and its inspection method and hydrogen detection unit |
| CN109313100B (en) * | 2016-06-30 | 2021-12-21 | 株式会社开滋 | Valve pressure resistance inspection device, inspection method thereof, and hydrogen gas detection unit |
| CN107135456A (en) * | 2017-04-27 | 2017-09-05 | 歌尔丹拿音响有限公司 | Audio amplifier gas leak detection device and method, computer-readable recording medium |
| CN110361145A (en) * | 2019-07-19 | 2019-10-22 | 成都市鹰诺实业有限公司 | A kind of askew amount method air tightness detection equipment |
| CN112504546A (en) * | 2020-11-11 | 2021-03-16 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Method and system for testing air pressure in wafer-level airtight packaged micro cavity |
| CN112504546B (en) * | 2020-11-11 | 2022-09-06 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Method and system for testing air pressure in wafer-level airtight packaged micro cavity |
| CN112360434A (en) * | 2020-12-08 | 2021-02-12 | 中国石油天然气股份有限公司 | Method for judging and identifying water-resisting oil production effect |
| CN112360434B (en) * | 2020-12-08 | 2023-10-27 | 中国石油天然气股份有限公司 | Water-proof oil extraction effect judging and identifying method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150701 |
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| CF01 | Termination of patent right due to non-payment of annual fee |