CN109561627B - End face self-sealing box type plug-in unit - Google Patents
End face self-sealing box type plug-in unit Download PDFInfo
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- CN109561627B CN109561627B CN201811582091.9A CN201811582091A CN109561627B CN 109561627 B CN109561627 B CN 109561627B CN 201811582091 A CN201811582091 A CN 201811582091A CN 109561627 B CN109561627 B CN 109561627B
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- plug
- rectangular flange
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- sealing
- unit
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- 238000007789 sealing Methods 0.000 title claims abstract description 54
- 239000003566 sealing material Substances 0.000 claims abstract description 4
- 210000001503 joint Anatomy 0.000 claims description 11
- 239000011159 matrix material Substances 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000000758 substrate Substances 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 16
- 238000012423 maintenance Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
- H05K7/1424—Card cages
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Casings For Electric Apparatus (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Abstract
The invention belongs to the technical field of electronic equipment, and particularly relates to an end face self-sealing box type plug-in unit, which has the overall appearance of a cuboid box type structure with a rectangular flange at the front part, wherein a screw mounting hole is formed in the plane of the rectangular flange at the front part, and when the plug-in unit is fixedly connected with a mounting substrate by a screw, an elastic sealing material positioned between contact surfaces, namely between the back surface of the rectangular flange and the mounting surface of the substrate is compressed to form a sealing structure. The two sides of the plug-in unit are respectively provided with a wedge-shaped locking device, so that additional locking force can be provided outside the screw fixation of the flange surface, the integral rigidity of the structure is enhanced, and the reliability of fixing and locking is improved. The rectangular flange at the front part of the plug-in unit is provided with an operation hole for operating the wedge-shaped locking device, and the operation hole is sealed by a plug after the operation is completed. The invention adopts a modularized structural design, simplifies the sealing structure of the whole machine, has compact structure and convenient assembly and disassembly, and can be applied to various electronic devices with higher requirements on reliability, maintainability and the like.
Description
Technical Field
The invention belongs to the technical field of electronic equipment, and particularly relates to an end face self-sealing box type plug-in unit.
Background
The existing plug-in units for box-type electronic devices are commonly of the following two structures: (1) The printed board with the plugging element, namely a board type plug-in unit, is shown in figure 1; (2) With a plug-in connected frame or cartridge plug-in unit, see fig. 2. The common characteristic of the two structures is that the independent sealing structure should be designed on the box body, and the box body must be opened for carrying out the installation and the disassembly of the plug-in units, thereby causing inconvenience for use and maintenance and reducing the reliability of the whole machine.
Disclosure of Invention
First, the technical problem to be solved
The invention aims to solve the technical problems that: how to provide a plug-in unit which simplifies the sealing structure and is convenient to operate and maintain.
(II) technical scheme
In order to solve the above technical problems, the present invention provides an end face self-sealing cartridge type plug-in unit, which includes: a housing 1, a rectangular flange 3, an I/O electrical connector 8, a handle 6;
the shell 1 is of a cuboid box type structure, the rectangular flange 3 is arranged at the front part of the shell, the upper end and the lower end of the rectangular flange 3 are arranged to exceed the upper end face and the lower end face of the cuboid box type structure, mounting holes 5 penetrating through the rectangular flange 3 are formed in the exceeding positions of the upper end and the lower end of the rectangular flange 3, and after the plug-in units are inserted into the mounting base body, the mounting holes 5 are inserted through mounting pieces to realize fixed interconnection between the plug-in units and the mounting base body;
the handle 6 is arranged in the middle of the front of the rectangular flange 3;
the rear part of the rectangular box-shaped structure is provided with the I/O electric connector 8, a circuit board is arranged in the rectangular box-shaped structure and communicated with the I/O electric connector 8, and the I/O electric connector 8 is used as an electric interface of the whole machine.
Wherein the mounting member is a screw.
The back of the rectangular flange 3 is provided with a rectangular section groove along the inner side of the edge, the grooves are connected end to form a continuous and complete annular structure, and a sealing strip 7 is embedded in the annular structure.
Wherein the grooves are arranged to have a rectangular cross section, and the annular structure is also rectangular in cross section.
Wherein four corners of the rectangular cross section are provided with rounded corners.
Wherein, the installation base member is semi-closed frame box.
The upper end face and the lower end face of the cuboid box-shaped structure are respectively provided with a wedge-shaped locking device 2, and additional locking force is provided on the basis that the mounting piece realizes fixed interconnection between the plug-in unit and the mounting base body.
The wedge-shaped locking device 2 is prepared based on the military standard SJ20382-2007 in the electronic industry.
Wherein, the upper and lower ends of the rectangular flange 3 are also provided with operation holes 4, and the positions of the operation holes 4 are set to correspond to the positions of the wedge-shaped locking devices 2;
the wedge-shaped locking device 2 is provided with a locking screw, the operation hole 4 is a threaded hole coaxial with the locking screw, and the threads of the operation hole are used for installing an operation hole plug; the screw driver or the special spanner is jacked into the corresponding clamping groove of the head part of the locking screw rod through the operation hole 4, the locking of the wedge-shaped locking device can be completed by anticlockwise rotation, and the locking is achieved by clockwise rotation; after the locking or unlocking operation is completed through the operation hole, an operation hole plug is arranged to seal the operation hole 4.
Wherein, the operation hole plug sets up to: and (3) the standard screw and sealing gasket combined structure is that the screw with the sealing gasket is screwed into the screw thread in the operation hole.
(III) beneficial effects
The invention provides a box type plug-in unit with a modularized structure, which can form an environment-resistant and highly reliable integrated electronic box structure after being in butt joint assembly with a mounting matrix, thereby achieving the purposes of simplifying a sealing structure and facilitating operation and maintenance.
Compared with the prior art, the end face self-sealing box type plug-in unit can realize the sealing of the peripheral part of the butt joint opening while being in butt joint installation with an installation base body (usually a semi-closed type rack row or a case box body with a similar structure), namely has the function of self sealing, and can be applied to modularized case combined type electronic equipment with higher requirements on reliability, maintainability and the like.
Drawings
Fig. 1 is a schematic view of a plate package unit structure. Wherein, 11: a housing; 12: a locking device; 13: I/O electrical connectors.
Fig. 2 is a schematic view of the cartridge type plug-in unit structure. Wherein, 11: a housing; 12: a locking device; 13: I/O electrical connectors.
Fig. 3-1 and 3-2 are schematic views of the end face self-sealing cartridge type insert unit of the present invention. Wherein, 1: a housing; 2: wedge locking device; 3: a rectangular flange; 4: a plug and an operation hole; 5: connecting the screw with the mounting hole; 6: a handle; 7: a sealing strip; 8: I/O electrical connectors.
Detailed Description
For the purposes of clarity, content, and advantages of the present invention, a detailed description of the embodiments of the present invention will be described in detail below with reference to the drawings and examples.
In order to solve the problems in the prior art, the present invention provides an end face self-sealing box type plug-in unit, as shown in fig. 3-1 and 3-2, comprising: a housing 1, a rectangular flange 3, an I/O electrical connector 8, a handle 6;
the shell 1 is of a cuboid box type structure, the rectangular flange 3 is arranged at the front part of the shell, the upper end and the lower end of the rectangular flange 3 are arranged to exceed the upper end face and the lower end face of the cuboid box type structure, mounting holes 5 penetrating through the rectangular flange 3 are formed in the exceeding positions of the upper end and the lower end of the rectangular flange 3, and after the plug-in units are inserted into the mounting base body, the mounting holes 5 are inserted through mounting pieces to realize fixed interconnection between the plug-in units and the mounting base body;
the handle 6 is arranged in the middle of the front of the rectangular flange 3;
the rear part of the rectangular box-shaped structure is provided with the I/O electric connector 8, a circuit board is arranged in the rectangular box-shaped structure and communicated with the I/O electric connector 8, and the I/O electric connector 8 is used as an electric interface of the whole machine.
Wherein the mounting member is a screw.
The back of the rectangular flange 3 is provided with a rectangular section groove along the inner side of the edge, the grooves are connected end to form a continuous and complete annular structure, and a sealing strip 7 is embedded in the annular structure; after the cuboid box-type structure at the rear part of the plug-in unit is installed in the installation base body and the plug-in unit is fixedly connected with the installation base body through the installation hole 5 by using the installation piece, the sealing strip positioned at the back of the rectangular flange 3 is also compressed tightly, so that the sealing of the interface part is realized, namely, the self sealing is also finished when the plug-in unit is in butt joint installation with the installation base body.
Wherein the grooves are arranged to have a rectangular cross section, and the annular structure is also rectangular in cross section.
Wherein four corners of the rectangular cross section are provided with rounded corners.
Wherein, the installation base member is semi-closed frame box.
The upper end face and the lower end face of the cuboid box-shaped structure are respectively provided with a wedge-shaped locking device 2, and additional locking force is provided on the basis that the mounting piece realizes fixed interconnection between the plug-in unit and the mounting base body.
The wedge-shaped locking device 2 is prepared based on the military standard SJ20382-2007 in the electronic industry.
Wherein, the upper and lower ends of the rectangular flange 3 are also provided with operation holes 4, and the positions of the operation holes 4 are set to correspond to the positions of the wedge-shaped locking devices 2;
the wedge-shaped locking device 2 is provided with a locking screw, the operation hole 4 is a threaded hole coaxial with the locking screw, and the threads of the operation hole are used for installing an operation hole plug; the screw driver or the special spanner is jacked into the corresponding clamping groove of the head part of the locking screw rod through the operation hole 4, the locking of the wedge-shaped locking device can be completed by anticlockwise rotation, and the locking is achieved by clockwise rotation; after the locking or unlocking operation is completed through the operation hole, an operation hole plug is arranged to seal the operation hole 4.
Wherein, the operation hole plug sets up to: and (3) the standard screw and sealing gasket combined structure is that the screw with the sealing gasket is screwed into the screw thread in the operation hole.
Example 1
The embodiment provides an end face self-sealing box type plug-in unit for modular combined electronic equipment, which integrally adopts a box type structure with a rectangular flange at the front part and a cuboid structural main body at the rear part, wherein screw mounting holes are formed in the plane of the rectangular flange at the front part, the plug-in unit main body structure is arranged in a mounting matrix, and after the plug-in unit main body structure is fixedly connected with the mounting matrix by using screws, elastic sealing materials between contact mounting surfaces, namely the back surface of the rectangular flange and the mounting matrix mounting surface, are compressed to form a sealing structure, namely the end face self-sealing function can be completed while the butt joint mounting is carried out.
The wedge-shaped locking devices are respectively arranged on two sides of the plug-in unit, operation holes of the wedge-shaped locking devices are correspondingly formed in rectangular flange surfaces at the front part of the plug-in unit, the operation holes are screw holes coaxial with locking screws of the wedge-shaped locking devices, locking and unlocking of the wedge-shaped locking devices can be completed through the operation holes, and special plugs are arranged to seal the operation holes.
Example 2
In order to solve the technical problem, the plug-in unit of the embodiment comprises a shell, an internal circuit board, an I/O electric connector, a handle and other indication marks, the whole appearance is a cuboid box type structure with a rectangular flange at the front part, a mounting hole is formed in the rectangular flange surface at the front part, and after the plug-in unit is fixedly connected with a mounting base body through a screw, an elastic sealing material between the back surface of the rectangular flange and the mounting surface of the mounting base body is also compressed, namely, end face self-sealing can be completed while butt-joint mounting. Two wedge-shaped locking devices are respectively arranged on two sides of the plug-in unit, and additional locking force is provided outside the screw fixation, so that the integral rigidity of the structure is enhanced, and the reliability of fixing and locking is improved. In order to normally operate the wedge-shaped locking device, an operation hole is required to be arranged at a corresponding position on the rectangular flange surface at the front part of the plug-in unit, and meanwhile, a special plug is required to be designed to seal the operation hole in a non-operation state.
Example 3
In this embodiment, as shown in fig. 3, the plug-in unit includes a housing, a built-in circuit board, an I/O electrical connector, a wedge-shaped locking device, a handle and other indicating and marking members, and has an overall shape of a box structure with a rectangular flange at the front and a rectangular parallelepiped structural body at the rear. The handle, the indication and the identification piece are arranged on the front rectangular flange and serve as a man-machine interaction operation interface, the circuit board is packaged in the rear box body, the I/O electric connector is positioned on the rear end face and serves as an electric interface of the whole machine, and the wedge-shaped locking devices are positioned on two sides of the rear box body. Screw mounting holes are formed in the rectangular flange surface at the front part, rectangular cross section grooves are formed in the inner side of the edge of the flange back surface, and the grooves are connected end to form a continuous and complete round-corner rectangular annular structure and embedded with a mounting sealing strip. After the rear structural body of the plug-in unit is installed in the installation base body (usually a semi-closed rack column or a case box body with a similar structure) and is fixedly connected with the installation base body by using screws, the sealing strip positioned on the back of the rectangular flange of the plug-in unit is also compressed, so that the sealing of the interface part is realized, namely, the self sealing is also finished when the plug-in unit is in butt joint installation with the installation base body. Two wedge-shaped locking devices (one at the upper part and one at the lower part in the figure 3) are respectively arranged at two sides of the plug-in unit, and an additional locking force is provided outside the fixation of the screw, so that the integral rigidity of the structure can be enhanced, the reliability of fixed locking can be improved, and meanwhile, the wedge-shaped locking devices have a guiding function in the butt joint process. Wedge locking devices are standard parts which are already commercialized, and the military standard SJ20382-2007 in the electronics industry is a detailed specification thereof.
In order to solve the problem that the rectangular flange at the front part of the plug-in unit cannot be operated due to the conflict between the rectangular flange and the operation space of the wedge-shaped locking device, an operation hole is formed in the surface of the rectangular flange, the operation hole is a threaded hole coaxial with a locking screw rod of the wedge-shaped locking device, and threads of the operation hole are used for installing an operation hole plug. The screw driver or the special spanner is locked in the corresponding clamping groove of the screw head through operation Kong Dingru, the locking of the wedge-shaped locking device can be completed through anticlockwise rotation, and the locking is achieved through clockwise rotation. After the locking or unlocking operation is completed through the operation hole, a special plug is arranged to seal the operation hole. One simple implementation of the special plug is to screw the screw with the sealing gasket into the thread in the operation hole by using a combined structure of the standard screw and the sealing gasket. The plug-in unit adopts independent modularized design, does not affect other structural units when being detached from the whole machine, can complete self-sealing without additional operation after being installed, and achieves the purposes of simplifying a sealing structure and facilitating operation and maintenance.
The front end rectangular flange of the plug-in unit is utilized to realize self sealing, so that the sealing performance is ensured, the maintenance convenience is also realized, but the technical problem that the positioning of the front end sealing surface is in conflict with the reliable butt joint of the plug/socket of the rear I/O electric connector is also brought, namely, the structural design is required to ensure the requirement of the plugging length when the plug (positioned on the plug-in unit) of the I/O electric connector is in butt joint with the socket (positioned on the mounting substrate), and the reliable contact and sealing between the rectangular flange surface of the plug-in box unit and the mounting surface of the substrate are also ensured. The method adopts the following technical means to solve the problems:if the distance between the front end contact matching surface (the back surface of the rectangular flange at the front end of the plug-in unit and the mounting surface of the mounting base) and the rear contact matching surface (the plugging positioning surface of the plug-in unit upper electric connector plug and the socket on the mounting base) is L, the allowable variation of the plugging length between the electric connector plug and the socket is A (the data can be checked by an electric connector selection manual and is one of basic parameters of the electric connector), one possible size chain tolerance distribution scheme is that the size from the back surface of the rectangular flange at the front end of the plug-in unit to the plugging positioning surface of the plug-in electric connector plug at the rear end of the plug-in unit is defined asThe size of the front mounting surface of the mounting base body to the socket plugging positioning surface of the internal I/O electric connector is set to be +.>The two dimensions are used as a closed loop (design input) for the design and calculation of the respective internal dimension chains of the plug-in unit and the mounting matrix, so that the accurate positioning of the plug and the socket of the electric connector can be completed while the sealing performance requirement is ensured.
The plug-in unit related by the invention adopts a modularized structure, can be used singly or in groups, has the advantages of compact structure, flexible application, wide application range and the like, can form an environment-resistant and highly reliable integrated electronic box structure after being in butt joint assembly with the mounting matrix, simplifies the box sealing structure, realizes the rapid installation and disassembly of the plug-in unit, and can be applied to various modularized combined electronic equipment with higher requirements on reliability and maintainability.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present invention, and such modifications and variations should also be regarded as being within the scope of the invention.
Claims (5)
1. An end face self-sealing cartridge insert unit, characterized in that it comprises: the device comprises a shell (1), a rectangular flange (3), an I/O electric connector (8) and a handle (6);
the shell (1) is of a cuboid box type structure, the rectangular flange (3) is arranged at the front part of the shell, the upper end and the lower end of the rectangular flange (3) are arranged to exceed the upper end face and the lower end face of the cuboid box type structure, mounting holes (5) penetrating through the rectangular flange (3) are formed in the positions, exceeding the upper end and the lower end of the rectangular flange (3), of the rectangular flange, and after the plug-in unit is inserted into the mounting base body, the mounting holes (5) are inserted through mounting pieces to realize fixed interconnection between the plug-in unit and the mounting base body;
the mounting matrix is a semi-closed frame box body;
the handle (6) is arranged in the middle of the front of the rectangular flange (3);
the rear part of the cuboid box-shaped structure is provided with the I/O electric connector (8), a circuit board is arranged in the cuboid box-shaped structure and communicated with the I/O electric connector (8), and the I/O electric connector (8) is used as an electric interface of the whole machine;
the end face self-sealing box type plug-in unit integrally adopts a box type structure with a rectangular flange at the front part and a cuboid structure main body at the rear part, a screw mounting hole is formed in the plane of the rectangular flange at the front part, after the plug-in unit main body structure is installed in a mounting matrix and fixedly connected with the mounting matrix by using screws, an elastic sealing material positioned between the contact mounting surfaces, namely between the back surface of the rectangular flange and the mounting matrix mounting surface is compressed to form a sealing structure, namely the butt joint mounting can be completed, and the end face self-sealing function can be completed;
the upper end face and the lower end face of the rectangular box-shaped structure are respectively provided with a wedge-shaped locking device (2), and additional locking force is provided on the basis that the mounting piece realizes the fixed interconnection between the plug-in unit and the mounting base body;
in order to solve the problem that the rectangular flange at the front part of the plug-in unit cannot be operated due to the conflict between the rectangular flange and the operation space of the wedge-shaped locking device, an operation hole is formed in the surface of the rectangular flange, the operation hole is a threaded hole coaxial with a locking screw rod of the wedge-shaped locking device, and threads of the operation hole are used for installing an operation hole plug;
the mounting piece is a screw;
the upper end and the lower end of the rectangular flange (3) are also provided with operation holes (4), and the positions of the operation holes (4) are set to correspond to the positions of the wedge-shaped locking devices (2);
the wedge-shaped locking device (2) is provided with a locking screw, the operation hole (4) is a threaded hole coaxial with the locking screw, and the threads of the operation hole are used for installing an operation hole plug; the screw driver or the special spanner is jacked into the corresponding clamping groove of the head part of the locking screw rod through the operation hole (4), the locking of the wedge-shaped locking device can be completed by anticlockwise rotation, and the locking is achieved by clockwise rotation; after the locking or unlocking operation is finished through the operation hole, an operation hole plug is arranged to seal the operation hole (4);
the operation hole plug is set as follows: and (3) the standard screw and sealing gasket combined structure is that the screw with the sealing gasket is screwed into the screw thread in the operation hole.
2. The end face self-sealing box type plug-in unit according to claim 1, wherein the back face of the rectangular flange (3) is provided with a rectangular cross section groove along the inner side of the edge, the grooves are connected end to form a continuous and complete annular structure, and a sealing strip (7) is embedded in the annular structure.
3. The end face self-sealing cartridge insert unit according to claim 2, wherein the groove is provided with a rectangular cross section, and the annular structure is also of rectangular cross section.
4. A self-sealing end face cartridge insert unit according to claim 3, wherein four corners of the rectangular cross section are provided as rounded corners.
5. The end-face self-sealing cartridge insert unit according to claim 1, wherein the wedge locking device (2) is prepared based on the electronic industry military standard SJ 20382-2007.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811582091.9A CN109561627B (en) | 2018-12-24 | 2018-12-24 | End face self-sealing box type plug-in unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811582091.9A CN109561627B (en) | 2018-12-24 | 2018-12-24 | End face self-sealing box type plug-in unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109561627A CN109561627A (en) | 2019-04-02 |
| CN109561627B true CN109561627B (en) | 2024-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811582091.9A Active CN109561627B (en) | 2018-12-24 | 2018-12-24 | End face self-sealing box type plug-in unit |
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| CN (1) | CN109561627B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114206035A (en) * | 2020-09-18 | 2022-03-18 | 华为技术有限公司 | Expansion assembly for electronic equipment and electronic equipment |
| CN113891607A (en) * | 2021-10-14 | 2022-01-04 | 航天科工微系统技术有限公司 | Floating high-precision axial positioning structure, electronic equipment and installation method thereof |
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| Publication number | Publication date |
|---|---|
| CN109561627A (en) | 2019-04-02 |
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