CN107895862A - A kind of hermetically-sealed electrical connector and installation method - Google Patents
A kind of hermetically-sealed electrical connector and installation method Download PDFInfo
- Publication number
- CN107895862A CN107895862A CN201711084981.2A CN201711084981A CN107895862A CN 107895862 A CN107895862 A CN 107895862A CN 201711084981 A CN201711084981 A CN 201711084981A CN 107895862 A CN107895862 A CN 107895862A
- Authority
- CN
- China
- Prior art keywords
- inner housing
- hole
- shell body
- hermetically
- electrical connector
- 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
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5202—Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
- H01R13/504—Bases; Cases composed of different pieces different pieces being moulded, cemented, welded, e.g. ultrasonic, or swaged together
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5219—Sealing means between coupling parts, e.g. interfacial seal
Abstract
The present invention relates to a kind of hermetically-sealed electrical connector and installation method, the hermetically-sealed electrical connector includes shell body, inner housing and contact, inner housing is provided with multiple connecting holes, one end of contact is set in connecting hole and is integrated by vitreum and connecting hole inwall sintering, the outside hull outside extension of the other end of contact, shell body is provided with through hole, and inner housing is set in through hole, and being provided with filler between through-hole wall on the outside of inner housing makes inner housing be connected as one with shell body；The step of inner housing and contact sintering including being first integrated, then shell body and inner housing being welded as a whole by the installation method；Using technical scheme, employing different sealing means makes the air-tightness of electric connector remain good, shell body chooses the material with electronic equipment matrix expansion coefficient similar, connector is set to remain good matching and thermal stress balance with matrix, gas leakage is avoided, makes the use of electric connector safer and reliable.
Description
Technical field
The invention belongs to electrical engineering technical field, more particularly to a kind of hermetically-sealed electrical connector and installation method.
Background technology
At present, in the various aspects of people's daily life, in order to realize the connection between electric input and output, usually
Using electric connector, common mainly has plug, socket, MC connectors, and these connectors are according to transimission power or transmission electric current
The number of phases and with varying number contact, in each electronic product, the application of these electric connectors is very extensive, be form
The main functionality part of electronic product, with the development of electronic technology, on many accurate electronic products, to electric connector
Assembly precision and connection reliability requirement increasingly improve, for example, in industrial circles such as Aeronautics and Astronautics, do not require nothing more than electric connector
Small volume, it is light, using reliable, it is also desirable to have the ability that can resist adverse circumstances influence, such as antifog, moistureproof or insulation
Deng just needing to use the electric connector with gas tightness in this case, this type electric connector generally comprises housing and multiple
Contact, multiple contacts are sintered on housing by vitreum, and shell is typically made using kovar alloy 4J29, and cost is higher, and
Due to the limitation of SINTERING TECHNOLOGY, under conditions of air-tightness is ensured, the spacing minimum between two neighboring contact is reachable
1.27mm, for example, the patent document of Publication No. " CN203277796U ", discloses a kind of hermetic seal connector, including interior lead
Body, shell, the inner wire use integrative-structure, in addition to the vitreum being sintered between inner wire and shell, the vitreum
The whole spaces being arranged between inner wire and shell, or be arranged between the inner wire of end and shell, in the inner wire and outside
Space between shell and vitreum is air；And for example, the patent document of Publication No. " CN105449420A ", discloses a kind of elongated hole
More pin electrical connectors of glass sealing and preparation method thereof, including it is axially arranged with the metal shell in some sealing-in holes, sealing-in hole is built-in
Equipped with conductor contact pin, glass insulator, the sealing-in of metal shell are clamped between the sealing-in hole wall of conductor contact pin and metal shell
Both ends are sealed with curable epoxide layer in hole, produce glass insulator using vitreum melting high pressure tube-pulling craft, utilize net belt type
High temperature sintering furnace is sintered, and gradation filling is carried out using the high insulating epoxy glue of high temperature resistant in the groove of electric connector sealing-in hole both ends
Envelope and solidification, form it into the protective layer of densification, it is therefore prevented that introduced contaminants pollutes glass insulator；Use the technical side of the invention
Case, using slender glass insulator, glass pipe size is consistent, and surface is smooth, and appearance and size uniformity is good, is not in multiple glass
There is the problem of shrinkage cavity, air entrapment after the superposition of glass pearl, both ends are sealed by curable epoxide layer, it is achieved thereby that high leakproofness,
High bearing capacity and high insulating property；But the electric connector is when in use, because housing can only use kovar alloy 4J29 materials
Material, and the linear expansion coefficient of kovar alloy 4J29 materials differs with the linear expansion coefficient of the material of other parts on electronic equipment
It is larger, for example, this airproof electric connector is installed on alloy matrix aluminum, because the line of kovar alloy 4J29 materials expands
Coefficient and differing for aluminum alloy materials are larger, and when ambient air temperature changes, the Volume Changes difference of the two is larger, makes connection
Matching connection between device and matrix is poor, and thermal stress when being welded to connect is larger, makes to occur mutually between connector and matrix
Phase squeezing action, the vitreum that will be destroyed on connector when serious, three-dimensional cracking is set brokenly to cause gas leakage.
The content of the invention
In order to solve the above technical problems, the invention provides a kind of hermetically-sealed electrical connector and installation method.
The invention provides a kind of hermetically-sealed electrical connector, including shell body, inner housing and contact, on the inner housing
Provided with multiple connecting holes, one end of the contact is set in the connecting hole and burnt by vitreum and the connecting hole inwall
Became one, the other end of the contact is provided with through hole, the inner housing to extension on the outside of the shell body, the shell body
Be set in the through hole, be provided with the outside of the inner housing between the through-hole wall filler make the inner housing with it is described
Shell body connects as one.
The material of the shell body is aluminium alloy.
The material of the inner housing is mild steel.
The end of the through hole is provided with chamfering, and chamfering is arranged in extension one on the outside of towards the contact to the shell body
Side.
The end of the connecting hole is provided with groove.
At least one step surface is provided with the through hole, boss, raised head face and step surface are provided with the outside of the inner housing
Flush.
The filler is scolding tin.
In addition, present invention also offers a kind of installation method of hermetically-sealed electrical connector, comprise the following steps：
Step 1：Shell body, inner housing and multiple contacts are provided, the inner housing is provided with multiple connecting holes, described
Shell body is provided with through hole；
Step 2：Each contact described in step 1 is installed in the connecting hole successively；
Step 3：The inner housing and contact assembled described in step 2 is put into high temperature sintering furnace and is sintered, and is connected
Connect device its components；
Step 4：Connector its components described in step 3 are set in the through hole described in step 1, by solder
Between on the outside of filling to through-hole wall and connector its components, solder is cooled down after solder is heated into melting temperature, makes company
Connect and be closely joined together on the outside of device its components with through-hole wall.
Solder is scolding tin described in the step 4.
Melting temperature described in the step 4 is -55 DEG C to 250 DEG C.
The beneficial effects of the present invention are：
Using technical scheme provided by the invention, electric connector includes shell body, inner housing and contact, and inner housing is with touching
Glass frit seal is used between head, welded seal is used between inner housing and shell body, by using different sealing means
The air-tightness of electric connector is maintained, and the material selection of shell body is no longer influenced by the limitation of glass sintering technology, can make
With materials such as aluminium alloys, when electric connector provided by the invention is installed on electronic equipment on some matrix, when environment temperature
When degree changes, because the linear expansion coefficient of shell body material and matrix material is more or less the same, make between connector and matrix
Matching connection be in optimum state all the time, the thermal stress at the place of being welded to connect remains poised state, connector and matrix
Between will not because environment temperature produce change and mutually extrude, protect the safe and reliable use of electric connector, make electrical connection
The air-tightness of device keeps good, avoids gas leakage, and the present invention has simple in construction, easy for installation, using flexible, safe and reliable etc.
Feature.
Brief description of the drawings
Fig. 1 is the structural representation of hermetically-sealed electrical connector of the present invention；
Fig. 2 is the structural representation of shell body of the present invention；
Fig. 3 is the structural representation of inner housing of the present invention.
In figure：1- shell bodies, 2- inner housings, 3- contacts, 4- vitreums, 11- through holes, 12- chamferings, 13- step surfaces, 21-
Connecting hole, 22- grooves, 23- boss, 5- fillers.
Embodiment
Technical scheme is described further below in conjunction with accompanying drawing, but required protection domain does not limit to
In described；
The invention provides a kind of hermetically-sealed electrical connector and installation method, as shown in Figure 1, Figure 2, Figure 3 shows, the hermetic seal
Electric connector includes shell body 1, inner housing 2 and contact 3, and inner housing 2 is provided with multiple connecting holes 21, one end set of contact 3
Loaded on being integrated in connecting hole 21 and by vitreum 4 and the inwall of connecting hole 21 sintering, the other end of contact 3 is to outside shell body 1
Side extends, and shell body 1 is provided with through hole 11, and inner housing 2 is set in through hole 11, between the outside of inner housing 2 and the inwall of through hole 11
Inner housing 2 is set to be connected as one with shell body 1 provided with filler 5.Using technical scheme provided by the invention, electric connector includes
Shell body, inner housing and contact, glass frit seal is used between inner housing and contact, is used between inner housing and shell body
Welded seal, the air-tightness of electric connector is maintained by using different sealing means, and the material selection of shell body is no longer
Limited by glass sintering technology, the materials such as aluminium alloy can be used, electric connector provided by the invention is installed on electricity
When in sub- equipment on some matrix, when environment temperature changes, because the line of shell body material and matrix material expands
Coefficient is more or less the same, and the matching connection between connector and matrix is in optimum state all the time, and the heat for being welded to connect place should
Power remains poised state, will not mutually extrude, protect because environment temperature produces change between connector and matrix
The safe and reliable use of electric connector, the air-tightness of electric connector is kept good, avoid gas leakage, the present invention has structure letter
It is single, easy for installation, using flexible, it is safe and reliable the features such as.
The material of shell body 1 is aluminium alloy.
The material of inner housing 2 is mild steel.
The end of through hole 11 is provided with chamfering 12, and chamfering 12, which is arranged in towards contact 3 to the outside of shell body 1, extends side.
Being provided with beneficial to making filler be easier to fill for angle 12, so that the air-tightness of electric connector remains kilter, keeps away
Exempt from gas leakage.
The end of connecting hole 21 is provided with groove 22.Being provided with for groove 22 is easier to fill beneficial to vitreum, so that interior
Connection between housing and contact is closer, electric connector is remained good air-tightness, avoids gas leakage.
At least one step surface 13 is provided with through hole 11, the outside of inner housing 2 is provided with boss 23, the end face of boss 23 and step surface
13 flush.Cooperation between step surface 13 and boss 23, make to position relatively reliable when installing between shell body and inner housing, make to touch
Outwards hull outside extension maintains higher uniformity to head, facilitates the use of electric connector.
Filler 5 is scolding tin.
In addition, present invention also offers a kind of installation method of hermetically-sealed electrical connector, comprise the following steps：
Step 1：Shell body 1, inner housing 2 and multiple contacts 3, inner housing 2 are provided and are provided with multiple connecting holes 21, outside
Housing 1 is provided with through hole 11；
Step 2：Each contact 3 of step 1 is installed in connecting hole 21 successively；
Step 3：The inner housing 2 and contact 3 assembled in step 2 is put into high temperature sintering furnace and is sintered, and is connected
Device its components；
Step 4：The connector its components of step 3 are set in the through hole 11 in step 1, by fill solder extremely
Between on the outside of the inwall of through hole 11 and connector its components, solder is cooled down after solder is heated into melting temperature, makes connector
It is closely joined together on the outside of its components with the inwall of through hole 11.Using technical scheme provided by the invention, electric connector includes
Shell body, inner housing and contact, glass frit seal is used between inner housing and contact, is used between inner housing and shell body
Welded seal, the air-tightness of electric connector is maintained by using different sealing means, and the material selection of shell body is no longer
Limited by glass sintering technology, the materials such as aluminium alloy can be used, electric connector provided by the invention is installed on electricity
When in sub- equipment on some matrix, when environment temperature changes, because the line of shell body material and matrix material expands
Coefficient is more or less the same, and the matching connection between connector and matrix is in optimum state all the time, and the heat for being welded to connect place should
Power remains poised state, will not mutually extrude, protect because environment temperature produces change between connector and matrix
The safe and reliable use of electric connector, the air-tightness of electric connector is kept good, avoid gas leakage, the present invention has structure letter
It is single, easy for installation, using flexible, it is safe and reliable the features such as.
Solder is scolding tin in step 4.
Melting temperature in step 4 is -55 DEG C to 250 DEG C.Scolding tin has good mobility, and the heating of scolding tin can make
The instruments such as electricity consumption network iron, the selection of melting temperature will be selected according to the material of shell body and inner housing, when shell body uses
Aluminum alloy materials, and when inner housing uses low-carbon steel material, melt temperature scope is -55 DEG C to 250 DEG C, and preferred molten temperature is
At 185 DEG C, inner housing and shell body crystal inside will not both changed, scolding tin is maintained enough mobility, just
In being completely embedded inner housing and shell body, gas leakage is avoided.
Claims (10)
- A kind of 1. hermetically-sealed electrical connector, it is characterised in that：It is described interior including shell body (1), inner housing (2) and contact (3) Housing (2) is provided with multiple connecting holes (21), and one end of the contact (3) is set in the connecting hole (21) and passes through glass Body (4) is integrated with the connecting hole (21) inwall sintering, and the other end of the contact (3) prolongs to the shell body (1) outside Stretch, the shell body (1) is provided with through hole (11), and the inner housing (2) is set in the through hole (11), the inner housing (2) outside makes the inner housing (2) be connected with the shell body (1) with being provided with filler (5) between the through hole (11) inwall It is integrated.
- A kind of 2. hermetically-sealed electrical connector as claimed in claim 1, it is characterised in that：The material of the shell body (1) is aluminium Alloy.
- A kind of 3. hermetically-sealed electrical connector as claimed in claim 1, it is characterised in that：The material of the inner housing (2) is low Carbon steel.
- A kind of 4. hermetically-sealed electrical connector as claimed in claim 1, it is characterised in that：The end of the through hole (11) is provided with Angle (12), chamfering (12) are arranged in extension side on the outside of towards the contact (3) to the shell body (1).
- A kind of 5. hermetically-sealed electrical connector as claimed in claim 1, it is characterised in that：The end of the connecting hole (21) is provided with Groove (22).
- A kind of 6. hermetically-sealed electrical connector as claimed in claim 1, it is characterised in that：At least one is provided with the through hole (11) Individual step surface (13), inner housing (2) outside are provided with boss (23), and boss (23) end face flushes with step surface (13).
- A kind of 7. hermetically-sealed electrical connector as claimed in claim 1, it is characterised in that：The filler (5) is scolding tin.
- A kind of 8. installation method of hermetically-sealed electrical connector, it is characterised in that：Comprise the following steps：Step 1：Shell body (1), inner housing (2) and multiple contacts (3), the inner housing (2) are provided and are provided with multiple connections Hole (21), the shell body (1) are provided with through hole (11)；Step 2：Each contact (3) described in step 1 is installed in the connecting hole (21) successively；Step 3：The inner housing (2) and contact (3) assembled described in step 2 is put into high temperature sintering furnace and is sintered, and obtains Connector its components；Step 4：Connector its components described in step 3 are set in the through hole (11) described in step 1 Nei, by solder Between on the outside of filling to through hole (11) inwall and connector its components, cool down solder after solder is heated into melting temperature, Make to be closely joined together with through hole (11) inwall on the outside of connector its components.
- A kind of 9. installation method of hermetically-sealed electrical connector as claimed in claim 1, it is characterised in that：Institute in the step 4 It is scolding tin to state solder.
- A kind of 10. installation method of hermetically-sealed electrical connector as claimed in claim 1, it is characterised in that：In the step 4 Described melting temperature is -55 DEG C to 250 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711084981.2A CN107895862A (en) | 2017-11-07 | 2017-11-07 | A kind of hermetically-sealed electrical connector and installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711084981.2A CN107895862A (en) | 2017-11-07 | 2017-11-07 | A kind of hermetically-sealed electrical connector and installation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107895862A true CN107895862A (en) | 2018-04-10 |
Family
ID=61804796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711084981.2A Pending CN107895862A (en) | 2017-11-07 | 2017-11-07 | A kind of hermetically-sealed electrical connector and installation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107895862A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238566A (en) * | 2018-10-30 | 2019-01-18 | 歌尔科技有限公司 | Charging needle waterproof assembling structure, charging needle waterproof detection method and wrist wear equipment |
| CN112072375A (en) * | 2020-08-11 | 2020-12-11 | 中国电子科技集团公司第二十九研究所 | Micro-rectangular multi-core connector with air seal and manufacturing method thereof |
| CN113381218A (en) * | 2021-05-17 | 2021-09-10 | 贵州航天电器股份有限公司 | Sealed electric connector with silicon-aluminum alloy shell and manufacturing method thereof |
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|---|---|---|---|---|
| US4213004A (en) * | 1978-06-30 | 1980-07-15 | The United States Of America As Represented By The Secretary Of The Air Force | Hermetic electrical feedthrough for aluminum housing and method of making same |
| US6821145B1 (en) * | 2003-07-16 | 2004-11-23 | Special Hermetic Products, Inc. | Hermetically sealed connector and methods of providing the same |
| CN102347548A (en) * | 2011-07-19 | 2012-02-08 | 中航光电科技股份有限公司 | Hermetically-sealed connector and manufacturing method thereof |
| CN202268525U (en) * | 2011-07-19 | 2012-06-06 | 中航光电科技股份有限公司 | Sealed connector |
| CN205178101U (en) * | 2015-08-07 | 2016-04-20 | 杭州航天电子技术有限公司 | Small -size sealed high -pressure electric connector based on pottery seals knot |
| CN205303776U (en) * | 2015-12-29 | 2016-06-08 | 西安赛尔电子材料科技有限公司 | Glass sealing multicore connector of nai pressurization |
-
2017
- 2017-11-07 CN CN201711084981.2A patent/CN107895862A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4213004A (en) * | 1978-06-30 | 1980-07-15 | The United States Of America As Represented By The Secretary Of The Air Force | Hermetic electrical feedthrough for aluminum housing and method of making same |
| US6821145B1 (en) * | 2003-07-16 | 2004-11-23 | Special Hermetic Products, Inc. | Hermetically sealed connector and methods of providing the same |
| CN102347548A (en) * | 2011-07-19 | 2012-02-08 | 中航光电科技股份有限公司 | Hermetically-sealed connector and manufacturing method thereof |
| CN202268525U (en) * | 2011-07-19 | 2012-06-06 | 中航光电科技股份有限公司 | Sealed connector |
| CN205178101U (en) * | 2015-08-07 | 2016-04-20 | 杭州航天电子技术有限公司 | Small -size sealed high -pressure electric connector based on pottery seals knot |
| CN205303776U (en) * | 2015-12-29 | 2016-06-08 | 西安赛尔电子材料科技有限公司 | Glass sealing multicore connector of nai pressurization |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238566A (en) * | 2018-10-30 | 2019-01-18 | 歌尔科技有限公司 | Charging needle waterproof assembling structure, charging needle waterproof detection method and wrist wear equipment |
| CN109238566B (en) * | 2018-10-30 | 2023-09-15 | 歌尔科技有限公司 | Waterproof mounting structure of charging needle, waterproof detection method of charging needle and wrist-wearing equipment |
| CN112072375A (en) * | 2020-08-11 | 2020-12-11 | 中国电子科技集团公司第二十九研究所 | Micro-rectangular multi-core connector with air seal and manufacturing method thereof |
| CN113381218A (en) * | 2021-05-17 | 2021-09-10 | 贵州航天电器股份有限公司 | Sealed electric connector with silicon-aluminum alloy shell and manufacturing method thereof |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180410 |
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| RJ01 | Rejection of invention patent application after publication |