CN106102399A - A kind of sealing structure of vacuum pump electronic controller - Google Patents
A kind of sealing structure of vacuum pump electronic controller Download PDFInfo
- Publication number
- CN106102399A CN106102399A CN201610705691.4A CN201610705691A CN106102399A CN 106102399 A CN106102399 A CN 106102399A CN 201610705691 A CN201610705691 A CN 201610705691A CN 106102399 A CN106102399 A CN 106102399A
- Authority
- CN
- China
- Prior art keywords
- vacuum pump
- electronic controller
- circuit board
- sealing structure
- printed circuit
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
- H05K5/064—Hermetically-sealed casings sealed by potting, e.g. waterproof resin poured in a rigid casing
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The invention discloses the sealing structure of a kind of vacuum pump electronic controller, including: printed circuit board, it is fixed on the pressure sensor chip of described printed circuit board lower end, accommodates described printed circuit board and the shell of described pressure sensor chip, wherein, the described printed circuit board of cladding and the erosion resisting insulation glue of described pressure sensor chip it is perfused with in described shell, further, the bottom of described shell arranges the airway connecting described sensor chip.The sealing structure of this kind of vacuum pump electronic controller on the premise of guaranteeing sealing effectiveness, components and parts such as printed circuit board and the pressure sensor chip preventing from flowing through in the gas attack shell of airway, and then improve the service life of components and parts in shell.
Description
Technical field
The present invention relates to controller for vacuum pump technical field, particularly relate to the sealing knot of a kind of vacuum pump electronic controller
Structure.
Background technology
Being generally designed a vacuum booster in the arrestment mechanism of electric motor car, this vacuum booster is that vacuum pump exists
Carry out less than external pressure under the control of controller, by bleeding, make air pressure inside draught head to reduce when user brakes
Active force.Controller for vacuum pump realizes on off control, the sealing of controller for vacuum pump according to different operating state to vacuum pump
Whether it can be operated effectively and be even more important.
Fig. 1 is the schematic diagram of the structure of existing controller for vacuum pump.As it is shown in figure 1, existing controller for vacuum pump bag
Including housing 10 and circuit board 20, housing 10 substantially downwardly extends out one without the rectangular box of end face, the bottom surface of housing 10
Ventilative duct 11, circuit board 20 is arranged on the middle part of housing 10 and is fixed by buckle 21, circuit board 20 and the bottom surface of housing 10
Between form an atmospheric pressure cavity 12, ventilative duct 11 connects with atmospheric pressure cavity 12, the wire harness (not shown) of circuit board 20 by
The upper surface of housing 10 is welded with the beam spot on circuit board 20, in housing 10 installed by circuit board 20 in introducing housing 10
After, the one layer of thin colloid of a certain amount of liquid of upper face brush at circuit board 20 seals up the inwall institute shape of circuit board 20 and housing 10
The gap become, after the thin colloid solidification of liquid completes, then uses detecting tool to detect whether gas leakage and leakage glue, and testing result is not
Leaking gas and do not leak colloid, finally the full liquid airproof colloid 30 of perfusion on the upper face of circuit board 20, is formed and only has air-vent
The sealing structure that road 11 connects with atmospheric pressure cavity 12.
But, the controller for vacuum pump of said structure, circuit board 20 directly contacts with the gas inside atmospheric pressure cavity 12, thus
Circuit board 20 is easily by gas attack.
Summary of the invention
It is an object of the invention to propose the sealing structure of a kind of vacuum pump electronic controller, it is intended to prevent gas attack shell
The components and parts in internal portion.
For reaching this purpose, the present invention by the following technical solutions:
The sealing structure of a kind of vacuum pump electronic controller, including: printed circuit board, is fixed under described printed circuit board
End pressure sensor chip, accommodate described printed circuit board and the shell of described pressure sensor chip, wherein, described shell
Inside it is perfused with the described printed circuit board of cladding and the erosion resisting insulation glue of described pressure sensor chip, and, described shell
Bottom arranges the airway connecting described pressure sensor chip.
Further, in the sealing structure of above-mentioned vacuum pump electronic controller, described erosion resisting insulation glue is epoxy
Resin glue.
Further, in the sealing structure of above-mentioned vacuum pump electronic controller, described erosion resisting insulation glue is by described
Printed circuit board is separated into upper glue layer and lower glue layer.
Further, in the sealing structure of above-mentioned vacuum pump electronic controller, described shell comprises: top is uncovered
Box body, shape and the described uncovered lid matched.
Further, in the sealing structure of above-mentioned vacuum pump electronic controller, described airway is pagoda joint.
Further, in the sealing structure of above-mentioned vacuum pump electronic controller, described pressure sensor chip is circle
Ring-type.
Further, in the sealing structure of above-mentioned vacuum pump electronic controller, described pressure sensor chip and institute
State and between the bottom of shell, sealing ring is set.
Further, in the sealing structure of above-mentioned vacuum pump electronic controller, described housing is at least opened in side-walls
If an interface.
Further, in the sealing structure of above-mentioned vacuum pump electronic controller, described interface is positioned at described printing
The upside of circuit board.
Further, in the sealing structure of above-mentioned vacuum pump electronic controller, described shell is rectangular housing.
The sealing structure of above-mentioned vacuum pump electronic controller, the printed circuit board of perfusion cladding in the enclosure and pressure sensing
The erosion resisting insulation glue of device chip, and, arrange in the bottom of shell connection sensor chip airway, thus guarantee close
On the premise of envelope effect, the unit such as printed circuit board and the pressure sensor chip preventing from flowing through in the gas attack shell of airway
The service life of components and parts in device, and then raising shell.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the structure of existing controller for vacuum pump；
Fig. 2 is the schematic diagram of the sealing structure of the vacuum pump electronic controller that the embodiment of the present invention provides.
In accompanying drawing, 1, box body；2, lid；3, printed circuit board；4, pressure sensor chip；5, airway；6, upper glue layer；
7, lower glue layer；8, sealing ring；10, housing；11, ventilative duct；12, atmospheric pressure cavity；20, circuit board；21, buckle；30, liquid airproof
Colloid；101, circular trough；102, interface.
Detailed description of the invention
Further illustrate technical scheme below in conjunction with the accompanying drawings and by detailed description of the invention.
Embodiment
Fig. 2 is the schematic diagram of the sealing structure of the vacuum pump electronic controller that the embodiment of the present invention provides.As in figure 2 it is shown,
The sealing structure of vacuum pump electronic controller that the present embodiment provides includes: printed circuit board 3, be fixed on printed circuit board 3 times
The pressure sensor chip 4 of end, receiving printed circuit board 3 and the shell of pressure sensor chip 4, wherein, be perfused with in shell
Cladding printed circuit board 3 and the erosion resisting insulation glue of pressure sensor chip 4, and, the bottom of shell arranges connection pressure and passes
The airway 5 of sensor chip 4.
In the present embodiment, erosion resisting insulation glue is preferably but is not limited only to epoxide-resin glue.Have decay resistance and
The potting compound of insulating properties all can be applied.
In the present embodiment, it is preferred that erosion resisting insulation glue is separated into upper glue layer 6 and lower glue layer 7 by printed circuit board 3.
That is, erosion resisting insulation glue pours at twice.Specifically, printed circuit board 3 is offered respectively in the two ends on length direction
Not shown through hole in figure, after printed circuit board 3 and pressure sensor chip 4 are built in shell, the erosion resisting insulation of liquid
Glue is poured into housing by a wherein through hole, until observing that erosion resisting insulation glue fills below printed circuit board 3 from another through hole
Till space, after the liquid erosion resisting insulation gelling admittedly below printed circuit board 3, form lower glue layer 7.The most in the enclosure
Perfusion forms the erosion resisting insulation glue of upper glue layer 6.
In the present embodiment, it is preferred that shell comprises: top is uncovered box body 1, shape and the uncovered lid matched
2.Further, box body 1 can use the modes such as hinged, clamping, threaded fastener locking to removably connect between lid 2.
In the present embodiment, airway 5 is downwardly extended by the bottom of shell is perpendicular, for convenience shell and vacuum pump
Gas piping realizes high-speed communication, and airway 5 is preferably plugging capability preferable pagoda joint.Certainly, airway 5 can also is that
The Pneumatic quick connector being connected with box body 1.
In the present embodiment, it is preferred that pressure sensor chip 4 is in circular.
In order to improve sealing effectiveness, in the present embodiment, it is preferred that between pressure sensor chip 4 and the bottom of shell
Sealing ring 8 is set.Concrete, sealing ring 8 is inlaid in the circular trough 101 of housing bottom, and, circular trough 101 and airway 5
It is connected.It addition, sealing ring 8 is preferably but not shall be limited only to the extent corrosion resistant teflin ring 8.Any by corrosion resistant
The sealing ring 8 that corrosion material is made can be suitable for.
In the present embodiment, it is preferred that housing at least offers an interface 102, the shape of each interface 102 in side-walls
Shape can be according to different connectivity port relative set.The signal of printed circuit board 3/data wire (not shown) extends to described
Interface 102.It should be noted that be applied in analog circuit, signal/data wire at least can be used for transmitting electric power signal, example
As for 24VDC signal, in like manner, in being applied in digital circuit, signal/data wire at least can be used for transmitting digital signal.Certainly,
The present invention provide vacuum pump electronic controller sealing structure in, signal/data wire can stretch out through interface 102 and
Go out.
In the present embodiment, it is preferred that interface 102 is positioned at the upside of printed circuit board 3, and, the top of upper glue layer 6
Top higher than interface 102.Certainly, in the sealing structure of the vacuum pump electronic controller that the present invention provides, interface 102 is also
Can be located at the downside of printed circuit board 3.
In the present embodiment, the preferably rectangular housing of shell.Certainly, the vacuum pump electronic controller of present invention offer is close
In seal structure, shell can also is that circular shell or other regular polygon housings.
The sealing structure of vacuum pump electronic controller that the present embodiment provides, the printed circuit board of perfusion cladding in the enclosure and
The erosion resisting insulation glue of pressure sensor chip, and, the airway of connection sensor chip is set in the bottom of shell, thus
On the premise of guaranteeing sealing effectiveness, prevent printed circuit board and the pressure transducer flowing through in the gas attack shell of airway
The service life of components and parts in the components and parts such as chip, and then raising shell.
The know-why of the present invention is described, but it should be recognized that above-mentioned these are retouched above in association with specific embodiment
State the principle being intended merely to explain the present invention, and the concrete restriction to scope can not be construed to by any way.
Based on explanation herein, can to associate other of the present invention specifically real not paying creative work for those skilled in the art
Execute mode or equivalent, fall within protection scope of the present invention.
Claims (10)
1. the sealing structure of a vacuum pump electronic controller, it is characterised in that including: printed circuit board, be fixed on described print
The pressure sensor chip of circuit board lower end processed, accommodate described printed circuit board and the shell of described pressure sensor chip, its
In, it is perfused with the described printed circuit board of cladding and the erosion resisting insulation glue of described pressure sensor chip in described shell, and,
The bottom of described shell arranges the airway connecting described sensor chip.
The sealing structure of vacuum pump electronic controller the most according to claim 1, it is characterised in that described erosion resisting insulation
Glue is epoxide-resin glue.
The sealing structure of vacuum pump electronic controller the most according to claim 1, it is characterised in that described erosion resisting insulation
Glue is separated into upper glue layer and lower glue layer by described printed circuit board.
The sealing structure of vacuum pump electronic controller the most according to claim 1, it is characterised in that described shell comprises:
Top is uncovered box body, shape and the described uncovered lid matched.
The sealing structure of vacuum pump electronic controller the most according to claim 1, it is characterised in that described airway is precious
Tower joint.
The sealing structure of vacuum pump electronic controller the most according to claim 1, it is characterised in that described pressure transducer
Chip is circular.
The sealing structure of vacuum pump electronic controller the most according to claim 6, it is characterised in that described pressure transducer
Between the bottom of chip and described shell, sealing ring is set.
The sealing structure of vacuum pump electronic controller the most according to claim 1, it is characterised in that described housing is in sidewall
Place at least offers an interface.
The sealing structure of vacuum pump electronic controller the most according to claim 8, it is characterised in that described interface is positioned at
The upside of described printed circuit board.
The sealing structure of vacuum pump electronic controller the most according to claim 1, it is characterised in that described shell is square
Shape housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610705691.4A CN106102399A (en) | 2016-08-22 | 2016-08-22 | A kind of sealing structure of vacuum pump electronic controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610705691.4A CN106102399A (en) | 2016-08-22 | 2016-08-22 | A kind of sealing structure of vacuum pump electronic controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106102399A true CN106102399A (en) | 2016-11-09 |
Family
ID=57225674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610705691.4A Pending CN106102399A (en) | 2016-08-22 | 2016-08-22 | A kind of sealing structure of vacuum pump electronic controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106102399A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107105590A (en) * | 2017-06-15 | 2017-08-29 | 天津市中环三峰电子有限公司 | A kind of sensor sealing shroud and vavuum pump integral controller and encapsulating method |
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| CN1379229A (en) * | 2001-03-29 | 2002-11-13 | 本田技研工业株式会社 | Controller unit having pressure sensor |
| CN2696278Y (en) * | 2004-04-30 | 2005-04-27 | 王作彦 | Brush motor controller of electric vehicle |
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| CN203310560U (en) * | 2013-07-15 | 2013-11-27 | 瑞安市炜炜车业部件有限公司 | Air inlet pressure sensor |
| CN103943756A (en) * | 2014-04-15 | 2014-07-23 | 深圳市晶台股份有限公司 | LED module COB packaging technology and structure |
| CN203963884U (en) * | 2014-07-09 | 2014-11-26 | 徐培鑫 | A kind of LED module with rubber filling type watertight composition |
| CN204136709U (en) * | 2014-08-18 | 2015-02-04 | 浙江中科领航汽车电子有限公司 | Tyre pressure sensor module |
| CN204350510U (en) * | 2015-01-13 | 2015-05-20 | 东方久乐汽车电子（上海）有限公司 | A kind of hermetically-sealed construction of plug-in type controller for vacuum pump |
| CN104964787A (en) * | 2015-07-08 | 2015-10-07 | 无锡隆盛科技股份有限公司 | Novel intake pressure sensor |
| CN105500927A (en) * | 2016-01-05 | 2016-04-20 | 福州聚众鑫电子科技有限公司 | Code-spurting marking machine jet printing head |
| CN206061363U (en) * | 2016-08-22 | 2017-03-29 | 华景传感科技（无锡）有限公司 | A kind of sealing structure of vacuum pump electronic controller |
-
2016
- 2016-08-22 CN CN201610705691.4A patent/CN106102399A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1379229A (en) * | 2001-03-29 | 2002-11-13 | 本田技研工业株式会社 | Controller unit having pressure sensor |
| CN2696278Y (en) * | 2004-04-30 | 2005-04-27 | 王作彦 | Brush motor controller of electric vehicle |
| CN101867008A (en) * | 2010-05-17 | 2010-10-20 | 中山大学佛山研究院 | LED packaging module capable of releasing stress |
| CN103209560A (en) * | 2012-10-10 | 2013-07-17 | 罗天成 | New type waterproof electric products |
| TWM449358U (en) * | 2012-11-14 | 2013-03-21 | Camaro Internat Co Ltd | Light-emitting diode packaging structure |
| CN203310560U (en) * | 2013-07-15 | 2013-11-27 | 瑞安市炜炜车业部件有限公司 | Air inlet pressure sensor |
| CN103943756A (en) * | 2014-04-15 | 2014-07-23 | 深圳市晶台股份有限公司 | LED module COB packaging technology and structure |
| CN203963884U (en) * | 2014-07-09 | 2014-11-26 | 徐培鑫 | A kind of LED module with rubber filling type watertight composition |
| CN204136709U (en) * | 2014-08-18 | 2015-02-04 | 浙江中科领航汽车电子有限公司 | Tyre pressure sensor module |
| CN204350510U (en) * | 2015-01-13 | 2015-05-20 | 东方久乐汽车电子（上海）有限公司 | A kind of hermetically-sealed construction of plug-in type controller for vacuum pump |
| CN104964787A (en) * | 2015-07-08 | 2015-10-07 | 无锡隆盛科技股份有限公司 | Novel intake pressure sensor |
| CN105500927A (en) * | 2016-01-05 | 2016-04-20 | 福州聚众鑫电子科技有限公司 | Code-spurting marking machine jet printing head |
| CN206061363U (en) * | 2016-08-22 | 2017-03-29 | 华景传感科技（无锡）有限公司 | A kind of sealing structure of vacuum pump electronic controller |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107105590A (en) * | 2017-06-15 | 2017-08-29 | 天津市中环三峰电子有限公司 | A kind of sensor sealing shroud and vavuum pump integral controller and encapsulating method |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161109 |
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| RJ01 | Rejection of invention patent application after publication |