CN109296751A - Closed case double sealing structure - Google Patents

Closed case double sealing structure Download PDF

Info

Publication number
CN109296751A
CN109296751A CN201811524084.3A CN201811524084A CN109296751A CN 109296751 A CN109296751 A CN 109296751A CN 201811524084 A CN201811524084 A CN 201811524084A CN 109296751 A CN109296751 A CN 109296751A
Authority
CN
China
Prior art keywords
sealing ring
sealed
sealing structure
cabinet
double
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
Application number
CN201811524084.3A
Other languages
Chinese (zh)
Inventor
廖西斌
周继华
刘俊
张运福
林传禄
夏宇欣
肖颖
苏凌旭
吕鸿
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Jinmei Communication Co Ltd
Original Assignee
Chongqing Jinmei Communication Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chongqing Jinmei Communication Co Ltd filed Critical Chongqing Jinmei Communication Co Ltd
Priority to CN201811524084.3A priority Critical patent/CN109296751A/en
Publication of CN109296751A publication Critical patent/CN109296751A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/002—Sealings comprising at least two sealings in succession

Abstract

The invention discloses a kind of double sealing structure of sealed cabinet, outer layer sealing ring is sealed for steam, salt fog；Internal layer sealing ring is used for electromagnetic sealing.The double sealing structure is suitable for the water-tight equipment of field environment and marine environment, and environmental suitability height, high reliablity significantly extend the service life of sealed cabinet.

Description

Closed case double sealing structure
Technical field
The invention discloses a kind of double sealing structure of sealed cabinet, outer layer sealing ring is sealed for steam, salt fog；Internal layer Sealing ring is used for electromagnetic sealing.The double sealing structure is suitable for the water-tight equipment of field environment and marine environment, environmental suitability High, high reliablity, significantly extends the service life of sealed cabinet.
Background technique
Under normal circumstances, the sealing of electronic equipment sealed cabinet carries out steam and electromagnetism using single layer of conductive sealing ring Sealing, but contain metal powder in conductive seal circle, there are potential differences with cabinet material for the metal powder, are having existing for steam Under the conditions of, it may occur that electrochemical reaction, in the presence of having salt fog, electrochemical corrosion can aggravate, electrochemical corrosion reaction The corrosion failure of cabinet seal groove and conductive seal circle itself can be directly resulted in will result in after etching extent reaches certain magnitude Cabinet leakage.
Summary of the invention
The invention proposes the double sealing structure of sealed cabinet, outer layer sealing ring is pure rubber sealing ring, pure rubber sealing Electrochemical reaction does not occur between circle and cabinet, is sealed for steam, salt fog；Internal layer sealing ring is conductive metal silk screen or conduction Sealing ring also lacks between internal layer sealing ring and cabinet since outer layer sealing ring prevents steam or salt fog to enter internal layer sealing ring The condition of electrochemical reaction occurs less, internal layer sealing ring is used for electromagnetic sealing.
The method have the benefit that: under the premise of guaranteeing cabinet steam and electromagnetic sealing, using a kind of bilayer The structure of sealing improves the reliability of cabinet sealing, significantly extends the service life of sealed cabinet.
Detailed description of the invention
Fig. 1, sealed cabinet double sealing structure figure of the invention: outer layer is sealed into pure rubber sealing ring, and internal layer, which is sealed into, leads Electric metal silk screen；
Fig. 2, exemplary application map.
Specific embodiment
Conductive metal silk screen is packed into cabinet internal layer seal groove, pure rubber sealing ring is packed into cabinet outer layer seal groove (see figure 2), and cover and fasten the double-layer seal that cover board completes sealed cabinet.

Claims (1)

1. the double-layer sealing structure of sealed cabinet, outer layer sealing ring is pure rubber sealing ring, is sealed for steam, salt fog；Internal layer Sealing ring is conductive metal silk screen or conductive seal circle, is used for electromagnetic sealing；The double sealing structure is suitable for open field environment With the water-tight equipment of marine environment, environmental suitability height, high reliablity significantly extend the service life of sealed cabinet.
CN201811524084.3A 2018-12-13 2018-12-13 Closed case double sealing structure Pending CN109296751A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811524084.3A CN109296751A (en) 2018-12-13 2018-12-13 Closed case double sealing structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811524084.3A CN109296751A (en) 2018-12-13 2018-12-13 Closed case double sealing structure

Publications (1)

Publication Number Publication Date
CN109296751A true CN109296751A (en) 2019-02-01

Family

ID=65141710

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811524084.3A Pending CN109296751A (en) 2018-12-13 2018-12-13 Closed case double sealing structure

Country Status (1)

Country Link
CN (1) CN109296751A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111465237A (en) * 2020-04-21 2020-07-28 中国电子科技集团公司第五十四研究所 Closed electronic case suitable for ships

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200947706Y (en) * 2006-08-09 2007-09-12 普天信息技术研究院 Cases
CN201207776Y (en) * 2008-05-28 2009-03-11 京信通信系统（中国）有限公司 Upper and lower cover sealing construction for communication device outdoor machine case
CN201298973Y (en) * 2008-10-27 2009-08-26 武汉虹信通信技术有限责任公司 Repeater case using plug-in radiator
CN205793841U (en) * 2016-07-01 2016-12-07 四川省东宇信息技术有限责任公司 A kind of waterproof shield box
CN206559802U (en) * 2017-03-06 2017-10-13 成都民航空管科技发展有限公司 A kind of outdoor protector
CN107801340A (en) * 2017-12-05 2018-03-13 合肥华耀电子工业有限公司 A kind of sealing structure of electric cabinet

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200947706Y (en) * 2006-08-09 2007-09-12 普天信息技术研究院 Cases
CN201207776Y (en) * 2008-05-28 2009-03-11 京信通信系统（中国）有限公司 Upper and lower cover sealing construction for communication device outdoor machine case
CN201298973Y (en) * 2008-10-27 2009-08-26 武汉虹信通信技术有限责任公司 Repeater case using plug-in radiator
CN205793841U (en) * 2016-07-01 2016-12-07 四川省东宇信息技术有限责任公司 A kind of waterproof shield box
CN206559802U (en) * 2017-03-06 2017-10-13 成都民航空管科技发展有限公司 A kind of outdoor protector
CN107801340A (en) * 2017-12-05 2018-03-13 合肥华耀电子工业有限公司 A kind of sealing structure of electric cabinet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111465237A (en) * 2020-04-21 2020-07-28 中国电子科技集团公司第五十四研究所 Closed electronic case suitable for ships

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Legal Events

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PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20190201