CN113540835A - Joint of cabin-penetrating cable in strong electromagnetic environment and shielding treatment method - Google Patents
Joint of cabin-penetrating cable in strong electromagnetic environment and shielding treatment method Download PDFInfo
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- CN113540835A CN113540835A CN202010299092.3A CN202010299092A CN113540835A CN 113540835 A CN113540835 A CN 113540835A CN 202010299092 A CN202010299092 A CN 202010299092A CN 113540835 A CN113540835 A CN 113540835A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/11—End pieces for multiconductor cables supported by the cable and for facilitating connections to other conductive members, e.g. for liquid cooled welding cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
- H01R4/646—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail for cables or flexible cylindrical bodies
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Abstract
The invention relates to a joint of a cabin-penetrating cable in a strong electromagnetic environment and a shielding treatment method, belongs to the technical field of cable connection, and solves the problems that the grounding effect of a shielding layer is poor after the traditional cable is contained by a cable and the adaptation applicability is poor by adopting an electric connector. The connector comprises a switching sleeve, a fastening component and a cable culvert, wherein the switching sleeve, the fastening component and the cable culvert are all of hollow cylinder structures; the adapter sleeve comprises a first section and a second section, the first outer diameter of the first section is smaller than the second outer diameter of the second section, and the first section is in reducing transition connection with the second section; the inner diameter of the cable culvert is greater than or equal to the first outer diameter of the first section and smaller than the second outer diameter of the second section; the fastening component can be installed in the switching sleeve, the first section of the switching sleeve can be installed in the cable culvert, and the end of the cable culvert abuts against the reducing transition connecting section between the first section and the second section. The connector has the advantages of simple structure and easy operation, and can be widely applied to stronger electromagnetic environments.
Description
Technical Field
The invention relates to the technical field of cable connection, in particular to a joint of a cabin-penetrating cable in a strong electromagnetic environment and a shielding treatment method.
Background
The traditional cable cabin-penetrating method is to realize signal transmission by directly penetrating through a cable culvert or switching through an electric connector. When wearing the cabin through the cable culvert, the cable need not operate, directly pass the cable culvert can, select to carry out sealing treatment such as waterproof to the gap between cable box and the cable according to the user demand. However, the grounding effect of the shielding layer is not good after the cable is used for passing through the cable, and the signal transmitted by the cable is distorted after being subjected to electromagnetic interference.
When the electric connector is used for switching and penetrating the cabin, the cable needs to be cut off at the cabin penetrating position, the electric connectors are installed at two ends of the cut cable, one of the electric connectors is installed at the position needing to penetrate the cabin, and the cables at two ends are interconnected through the electric connectors to realize cabin penetrating of cable signals. Generally, a mode of switching through an electric connector is selected for cable penetration treatment in a strong electromagnetic field environment, a cable shielding layer is reliably connected with a cabin body through the electric connector, and interference of the electromagnetic environment on signal transmission in the cable is eliminated or reduced. Therefore, the applicability of the electrical connector for connecting the cabin-penetrating cable is poor.
Therefore, it is urgently needed to provide a shielding treatment method for penetrating a cabin cable through a cable channel in a strong electromagnetic environment, and the problems that the grounding effect of a shielding layer is poor after a traditional cable channel is passed through the cable channel, the cable transmission signal is distorted after being subjected to electromagnetic interference, and the applicability of the switching by adopting an electric connector is poor are solved.
Disclosure of Invention
In view of the above analysis, the present invention aims to provide a joint for a cabin-penetrating cable in a strong electromagnetic environment and a shielding processing method thereof, so as to solve the problems that the grounding effect of a shielding layer after a traditional cable is contained by the cable is not good, the cable transmission signal is distorted after being subjected to electromagnetic interference, and when an electric connector is adopted for switching, the connection operation is complex, time and labor are consumed, the electromagnetic shielding effect is not good, and the cost is high.
The purpose of the invention is mainly realized by the following technical scheme:
on one hand, the connector of the cabin-penetrating cable in the strong electromagnetic environment comprises a switching sleeve, a fastening component and a cable culvert, wherein the switching sleeve, the fastening component and the cable culvert are all of hollow cylinder structures; the adapter sleeve comprises a first section and a second section; the fastening component can be installed in the switching cover, and the first section of switching cover can be installed in the cable culvert, and the tip of cable culvert supports and leans on the linkage segment between first section and the second section.
Further, the fastening assembly comprises a pressing block and a fastening sleeve, and the pressing block can be installed inside the fastening sleeve.
Further, the adapter sleeve is in threaded connection with the fastening sleeve.
Furthermore, the compressing block and the fastening sleeve are both of hollow cylinder structures.
Further, the fastening sleeve comprises a first through hole and a second through hole, and the first aperture of the first through hole is smaller than the second aperture of the second through hole; the second through hole is used for installing the pressing block.
Further, the length of the pressing block is smaller than that of the second through hole; one end of the pressing block can abut against the end face of the joint of the first through hole and the second through hole, and the other end of the pressing block is exposed out of the second through hole.
Further, the end of the pressing block is provided with a chamfer structure.
Further, the chamfer structure is an annular inclined surface.
Furthermore, an anti-falling structure is arranged on the inclined surface.
Further, the anti-falling structure is a protrusion or a groove.
Further, the number of the anti-falling structures is at least two groups.
Further, the multiple groups of anti-falling structures are annularly arranged on the inclined plane of the end part of the pressing block.
Further, the anti-falling structure is a protrusion of a hemispherical structure, and the diameters of the protrusion are not completely the same.
On the other hand, a shielding treatment method of the cabin-penetrating cable in the strong electromagnetic environment is also provided, the joint of the cabin-penetrating cable in the strong electromagnetic environment is adopted, and the method comprises the following steps:
the method comprises the following steps: processing the cabin penetrating cable to expose the shielding wire; installing and fixing the adapter sleeve on the cable culvert;
step two: one end of the cabin-penetrating cable, which is exposed out of the lead, sequentially penetrates through the fastening sleeve, the pressing block and the switching sleeve, and the lead sequentially penetrates through the switching sleeve and the cable culvert and extends into the cabin;
step three: the stripped shielding wires are reversely placed in a 360-degree annular mode to form reverse annular sections of the shielding wires, and the reverse annular sections of the stripped shielding wires are reversely sleeved at stripping boundaries of the cabin penetrating cables;
step four: assembling a fastening assembly, namely installing a pressing block into a fastening sleeve, and pressing a reverse annular section of the shielding wire on the inner wall of the adapter sleeve by the front end of the pressing block;
and (4) screwing the fastening sleeve to complete the shielding treatment connection of the cabin-penetrating cable in a strong electromagnetic environment.
Compared with the prior art, the invention has at least one of the following beneficial effects:
a) the joint of the cabin-penetrating cable in the strong electromagnetic environment provided by the invention has the advantages that the structure is simple, the installation time is greatly shortened, the operation difficulty is remarkably reduced, the completion time is not more than 10 minutes, the environmental applicability is good, the cable shielding layer and the cabin body are in annular compression connection, the electromagnetic protection effect is good, and the joint can be widely applied to the strong electromagnetic environment.
b) According to the connector of the cabin-penetrating cable in the strong electromagnetic environment, the chamfer structure is arranged at the end part, close to the first section, of the pressing block, the end part of the pressing block is of the inclined plane structure, so that the assembly is convenient, the area of the pressing block pressing the reverse annular section of the shielding wire is increased, the phenomenon that the local pressure is too large due to the fact that the contact area of the pressing block and the reverse annular section of the shielding wire is too small is prevented, the shielding wire is further damaged, and the stability of the connector is improved.
c) According to the connector of the cabin-penetrating cable in the strong electromagnetic environment, the anti-falling structures are arranged on the inclined plane at the front end of the pressing block, the anti-falling structures are arranged in multiple groups and are arranged annularly, so that the shielding wires of the cabin-penetrating cable can be prevented from falling off in the using process, and the stability of the connector is improved.
d) The shielding treatment method of the cabin-penetrating cable in the strong electromagnetic environment provided by the invention adopts the joint of the cabin-penetrating cable in the strong electromagnetic environment with simple structure and few parts, is easy to assemble and operate, saves time and labor, can greatly shorten the installation time, obviously reduces the operation difficulty, has the completion time of not more than 10 minutes, has complex operation of the traditional cable cabin-penetrating method, needs to carry out on-site treatment on the shielding layer of the cable and then connects the ground wire, takes about 1 hour for the whole work, adopts the shielding treatment method of the invention, has the working efficiency which is nearly 5 times higher, has good environmental applicability and low implementation cost, is in annular compression connection between the shielding layer of the cable and the cabin body, can be widely applied to the strong electromagnetic environment, carries out cable shielding treatment which has the requirement on electromagnetic protection through cable culvert wiring, has good grounding effect of the shielding layer, and avoids the distortion of the transmission signal of the cable after being subjected to electromagnetic interference, the electromagnetic protection effect is good.
In the invention, the technical schemes can be combined with each other to realize more preferable combination schemes. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout.
FIG. 1 is a schematic structural diagram of a transition sleeve of a joint of a cabin-penetrating cable in a strong electromagnetic environment according to the present invention;
FIG. 2 is a cross-sectional view of the adapter sleeve of FIG. 1;
FIG. 3 is a schematic structural diagram of a compact block of a joint of a cabin-penetrating cable in a strong electromagnetic environment according to the present invention;
FIG. 4 is a second schematic structural diagram of a compact block of a joint of a cabin-penetrating cable in a strong electromagnetic environment according to the present invention;
FIG. 5 is a schematic structural diagram of a fastening sleeve of a joint of a cabin-penetrating cable in a strong electromagnetic environment according to the present invention;
fig. 6 is a schematic structural diagram of the cabin-penetrating cable joint in a strong electromagnetic environment after cable shielding treatment.
Reference numerals:
1-a transfer sleeve; 11-first stage; 12-a second segment; 2-a compaction block; 21-a first protrusion; 22-a second protrusion; 3-fastening sleeve; 4-a bulkhead; 5-cable culvert; 6-cabin penetrating cable; 7-a shielded wire; 8-conductive wire.
Detailed Description
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the invention and together with the description, serve to explain the principles of the invention and not to limit the scope of the invention.
Example 1
The invention discloses a joint of a cabin-penetrating cable in a strong electromagnetic environment, which comprises a transfer sleeve 1, a fastening component and a cable culvert 5 as shown in figures 1 to 6, wherein the transfer sleeve 1, the fastening component and the cable culvert 5 are all hollow cylinder structures allowing the cabin-penetrating cable 6 to penetrate through; the adapter sleeve 1 is of a hollow cylinder structure and comprises a first section 11 and a second section 12, the first outer diameter of the first section 11 is smaller than the second outer diameter of the second section 12, the first section 11 and the second section 12 are in reducing transition connection, and the inner diameter of the cable culvert 5 is larger than or equal to the first outer diameter of the first section 11 and smaller than the second outer diameter of the second section 12; fastening components can be installed in adapter sleeve 1, and adapter sleeve 1's first section can be installed in cable culvert 5, and the tip of cable culvert 5 supports and leans on the excessive linkage segment of reducing between first section 11 and second section 12.
In this embodiment, the fastening assembly includes hollow-structure compact heap 2 and adapter sleeve 3, and compact heap 2 can install in the inside of adapter sleeve 3. Adapter sleeve 3 and the inner wall threaded connection of switching cover 1, the outer wall of adapter sleeve 3 sets up the external screw thread, and the inner wall of adapter sleeve 1 sets up the internal thread.
When the method is implemented, the cabin penetrating cable 6 to be penetrated is processed, the cabin penetrating cable 6 is stripped, the conducting wire 8 for transmitting signals in the cabin penetrating cable 6 is exposed, the conducting wire 8 is left to be in a proper length according to use requirements, the shielding wire in the cabin penetrating cable 6 is stripped, and the shielding wire with a certain length is reserved; installing the adapter sleeve 1 on the cable culvert 5, wherein the first section of the adapter sleeve 1 extends into the cable culvert 5 and is fixed; subsequently, the treated crossing-cabin cable 6 sequentially passes through the fastening sleeve 3, the pressing block 2 and the switching sleeve 1, the exposed wire 8 sequentially passes through the switching sleeve 1 and the cable culvert 5 to extend into the cabin, the stripped reserved shielding wire 7 is reversely placed in a 360-degree annular mode to form a reverse annular section of the shielding wire 7, and the stripped reverse annular section of the shielding wire 7 is reversely sleeved on the end portion of the stripping part of the crossing-cabin cable 6. Finally, the fastening assembly is installed in the adapter sleeve 1 and screwed down through threads, specifically, the pressing block 2 is installed in the adapter sleeve 3, the reverse annular section of the shielding wire 7 can be sleeved at the front end of the pressing block 2 in the installation process, the pressing block 2 is enabled to press the reverse annular section of the shielding wire on the inner wall of the adapter sleeve 1, and the shielding treatment connection of the cabin-penetrating cable in the strong electromagnetic environment is completed.
In this embodiment, the fastening sleeve 3 is a hollow cylindrical structure, as shown in fig. 5 to 6, the outer diameter of the fastening sleeve 3 is less than or equal to the inner diameter of the second section of the adapter sleeve 1. The side wall of the inner cavity of the fastening sleeve 3 is of a concave structure with two open ends, the fastening sleeve 3 comprises a first through hole and a second through hole, the center lines of the first through hole and the second through hole are overlapped, the first aperture of the first through hole is smaller than the second aperture of the second through hole, and the cabin penetrating cable 6 can penetrate through the first through hole and the second through hole; the second through hole is used for installing the compact heap 2, and the length of compact heap 2 is less than the length of the second through hole of adapter sleeve 3, and compact heap 2 can be installed in the second through hole of adapter sleeve 3, and the one end of compact heap 2 supports and leans on the terminal surface at first through hole and second through hole junction, and the second through hole is exposed to the other end of compact heap 2.
In this embodiment, compact heap 2 is the hollow circular cylinder structure, and compact heap 2's internal diameter more than or equal to wears cabin cable 6's external diameter, and compact heap 2 can install in the inside of adapter sleeve 3. The outer diameter of the pressing block 2 is smaller than or equal to the second aperture and larger than the first aperture,
for ease of assembly, the end of the holding-down block 2 adjacent the first section 11 has a chamfered configuration. Exemplarily, the chamfer structure of compact heap 2 tip is annular slope plane structure, as shown in fig. 3, the contact surface of compact heap 2 and the slope inner wall of the excessive linkage segment of adapter sleeve 1 is the slope plane, compact heap 2 tip slope plane and the seamless contact of the slope inner wall of the excessive linkage segment of adapter sleeve 1, this structural setting is not only convenient for assemble, the area that compact heap 2 compressed tightly the reverse annular section of shielded wire 7 has still been increased, prevent to lead to local pressure too big because of the contact area undersize of compact heap 2 and the reverse annular section of shielded wire 7, and then damage the shielded wire, the stability of joint has been improved.
In order to prevent the reverse annular section of the shielding wire 7 from falling off, an anti-falling structure is arranged on the annular inclined plane at the front end of the pressing block 2, and the anti-falling structure is a protrusion or a groove which is uniformly distributed or circumferentially and continuously arranged. Illustratively, a protrusion is arranged on the inclined inner wall of the transition connecting section of the adapter sleeve 1, and a groove matched with the protrusion is arranged on the inclined surface at the front end of the pressing block 2; or, the inclined inner wall of the transition connecting section of the adapter sleeve 1 is provided with a groove, and the inclined surface at the front end of the pressing block 2 is provided with a bulge matched with the groove. Through setting up anti-drop structure can prevent that cross cabin cable shielding wire from droing in the use, has improved the stability that connects.
Further, set up two sets of anti-drop structures at least on compact heap 2's front end inclined plane, preferably, anti-drop structure annular sets up, as shown in fig. 4, anti-drop structure is two sets of archs that the annular set up, and two sets of anti-drop structures are first arch 21 and second arch 22 respectively, can increase the area of contact of compact heap 2 inclined plane and switching cover 1 inner wall through setting up multiunit anti-drop structure, further prevent that the shielded wire of cross cabin cable from droing in the use, guaranteed the stability of joint.
Still further, the anti-drop structure is the arch of hemisphere structure to the diameter of the protruding multiunit that multiunit annular set up is not identical. Illustratively, the inclined surface of the pressing block 2 is provided with a first bulge and a second bulge which are of hemispherical structures, and the diameter of the first bulge is larger than that of the second bulge. Through setting up multistage and the anti-drop of variation in size arch, can further prevent to wear the cabin cable shielding wire in the use and drop, guarantee the stability that connects.
In this embodiment, the switching sleeve 1 is used for installing on the cable culvert, and the material is that metal electric conductive property is good, and the switching sleeve 1 is hollow structure, and wire 8 after the wire stripping can pass switching sleeve 1 first section, pass bulkhead 4 through cable culvert 5, stretch into in the cabin body. The pressing block 2 is hollow and cylindrical, the pressing block 2 is made of metal materials, and the front end of the pressing block 2 can be arranged in the first section of the adapter sleeve 1. Adapter sleeve 3 is made by the metal material, can install on adapter sleeve 1, and the structure cavity is used for holding compact heap 2 and passing the cable.
Compared with the prior art, the joint of the cabin penetrating cable in the strong electromagnetic environment provided by the embodiment has the advantages of simple structure, easiness in operation, time and labor saving, capability of greatly shortening the installation time and remarkably reducing the operation difficulty, the completion time is not more than 10 minutes, the work efficiency is improved by nearly 5 times, the environmental applicability is good, and the joint can be widely applied to various complex and compact cabin bodies; the implementation cost is low, and the cable shield layer compresses tightly for the annular between the cabin body and is connected, can the wide application in stronger electromagnetic environment, contains the cable simultaneously through the cable and lays wire and has the cable shield of demand to electromagnetic protection to handle, and shielding layer ground connection is effectual, avoids cable transmission signal to produce the distortion after receiving electromagnetic interference, and electromagnetic protection is effectual. In addition, the end part of the pressing block 2 close to the first section 11 is provided with the chamfer structure, the end part of the pressing block 2 is arranged to be an inclined plane structure, so that the assembly is facilitated, the area of the pressing block 2 pressing the reverse annular section of the shielding wire 7 is increased, the phenomenon that the local pressure is too large due to the fact that the contact area of the pressing block 2 and the reverse annular section of the shielding wire 7 is too small is prevented, the shielding wire is damaged, and the stability of the joint is improved. In addition, through set up anti-drop structure on compact heap 2 front end inclined planes, anti-drop structure sets up the multiunit, and the annular sets up, can prevent that the shielded wire of cross cabin cable from droing in the use, has improved the stability that connects.
Example 2
The present invention further discloses a shielding method for a cabin-penetrating cable in a strong electromagnetic environment, which adopts the joint of the cabin-penetrating cable in the strong electromagnetic environment in embodiment 1, and the method specifically includes the following steps:
the method comprises the following steps: processing the cabin penetrating cable 6 to expose the shielding wire; the adapter sleeve 1 is installed and fixed on the cable culvert 5. Specifically, the cabin penetrating cable 6 is stripped, a wire 8 for transmitting signals in the cabin penetrating cable 6 is exposed, the wire 8 is left at a proper length according to use requirements, a shielding wire stripped from a shielding wire in the cabin penetrating cable 6 is reserved at a certain length, if the reserved length is 2 +/-0.5 cm, the extra shielding wire is cut off, and the shielding wire comprises a wave-proof sleeve outside the cable and the like. Install adapter sleeve 1 on cable culvert 5, the first section of adapter sleeve 1 stretches into in the cable culvert 5 and fixed, and the tip of cable culvert 5 supports and leans on the excessive linkage segment of reducing of first section 11 and second section 12.
Step two: one end of the cabin penetrating cable 6, which is exposed out of the lead 8, sequentially penetrates through the fastening sleeve 3, the pressing block 2 and the adapter sleeve 1, and the lead 8 sequentially penetrates through the adapter sleeve 1 and the cable culvert 5 and extends into the cabin.
Step three: the stripped shielding wires 7 are reversely placed in a 360-degree annular mode to form reverse annular sections of the shielding wires 7, the reverse annular sections of the stripped shielding wires 7 are reversely sleeved at the stripping limit of the cabin penetrating cables 6, and the reverse annular sections of the shielding wires 7 can wrap the un-stripped parts of the cabin penetrating cables 6. The overall length of the pinch 2 may be set to 1cm and the length of the reverse loop segment of the shield wire may be set to 2cm, wherein the length of the reverse loop segment of the shield wire 7 is 1/3-1/2 of the length of the pinch 2.
Step four: and assembling a fastening assembly, namely, installing the pressing block 2 into the fastening sleeve 3, and pressing the reverse annular section of the shielding wire on the inner wall of the adapter sleeve 1 by the front end of the pressing block 2. Specifically, the assembled fastening assembly is installed in the adapter sleeve 1, the reverse annular section of the shielding wire 7 can be sleeved at the front end of the pressing block 2 in the installation process, and the pressing block 2 presses the reverse annular section of the shielding wire on the inner wall of the adapter sleeve 1; and (3) screwing the fastening sleeve 3 to tightly connect the fastening sleeve with the pressing block 2, increasing the interaction force between the pressing block 2 and the inner wall of the switching sleeve 1, completing the shielding treatment connection of the cabin-penetrating cable in a strong electromagnetic environment, and completing the cabin-penetrating connection of the whole structure as shown in fig. 6.
Before the first step, parts and assembly tools required by the cabin-penetrating cable processing shielding are prepared. The parts for processing the shielding of the cabin-penetrating cable comprise: adapter sleeve 1, compact heap 2, adapter sleeve 3 and cable culvert 5. Wherein, switching cover 1 is used for installing on cable culvert 5, and the material is that metal electric conductive property is good, and switching cover 1 is hollow structure, and wire 8 after the wire stripping can pass switching cover 1 first section, pass bulkhead 4 through cable culvert 5, stretch into the cabin internal. The pressing block 2 is hollow and cylindrical, the pressing block 2 is made of metal materials, and the front end of the pressing block 2 can be arranged in the first section of the adapter sleeve 1. Adapter sleeve 3 is made by the metal material, can install on adapter sleeve 1, and the structure cavity is used for holding compact heap 2 and passing the cable.
In this embodiment, the adoption sets up compact heap 2 of chamfer structure, 2 tip of compact heap is the inclined plane, when assembling compact heap 2 in step four, make 2 tip inclined planes of compact heap and the slope inner wall seamless contact of the transition section of switching cover 1, the chamfer structure that sets up the slope cross-section is convenient for not only assemble, the area that compact heap 2 compresses tightly 7 reverse ring sections of shielded wire has still been increased, prevent to lead to local pressure too big because of the contact area undersize of compact heap 2 and 7 reverse ring sections of shielded wire, and then damage the shielded wire, the stability of joint has been improved.
In this embodiment, adopt compact heap 2 and supporting switching cover 1 that sets up anti-drop structure, exemplary, the inclined plane of compact heap 2 front end sets up the circumference arch, the slope inner wall setting of the excessive linkage segment of switching cover 1 and the circumference recess of the protruding looks adaptation of circumference, during the assembly, compact heap 2 sets up the one end of chamfer structure and stretches into in switching cover 1, the circumference arch that sets up on the 2 front end inclined end face of compact heap supports at first on the reverse ring section of supporting at shielded wire 7, along with further stretching into of compact heap 2, the circumference arch supports the circumference recess that the excessive linkage segment slope inner wall of switching cover 1 set up of installing into in the reverse ring section of shielded wire 7, thereby it is fixed with the reverse ring section of shielded wire 7. Through adopting compact heap 2 that sets up anti-drop structure can prevent that cross the cabin cable shielding wire in the use from droing, has improved the stability of joint.
Further, the annular sets up at least two sets of anti-drop structures on compact heap 2's front end inclined plane, as shown in fig. 4, anti-drop structure is two sets of archs that the annular set up, and two sets of anti-drop structures are first arch 21 and second arch 22 respectively, can increase the area of contact of compact heap 2 inclined plane and switching cover 1 inner wall through setting up multiunit anti-drop structure, further prevent to wear the cabin cable shielding wire in the use and drop, guaranteed the stability of joint.
Still further, the anti-drop structure is the hemisphere structure to the diameter of the protruding multiunit that multiunit annular set up is not identical. Illustratively, the inclined surface of the pressing block 2 is provided with a first bulge and a second bulge which are of hemispherical structures, and the diameter of the first bulge is larger than that of the second bulge. Through setting up multistage and the anti-drop of variation in size arch, can further prevent to wear the cabin cable shielding wire in the use and drop, guarantee the stability that connects.
Compared with the prior art, the shielding processing method of crossing cabin cable among the forceful electric magnetic environment that this embodiment provided, adopt simple structure, the joint of crossing cabin cable among the forceful electric magnetic environment that spare part is few, the assembly is easy to operate, labour saving and time saving, environmental suitability is good, the implementation cost is low, it compresses tightly for the annular between cable shield and the cabin body and is connected, can wide application in stronger electromagnetic environment, cable shield that has the demand to electromagnetic protection simultaneously through cable culvert wiring is handled, shield ground connection is effectual, avoid cable transmission signal to produce the distortion after receiving electromagnetic interference, electromagnetic protection is effectual. The traditional cable cabin penetrating method is complex to operate, the shielding layer of the cable needs to be subjected to field treatment and then is connected with the ground wire, the time consumed for completing all work is about 1 hour, the installation time can be greatly shortened, the operation difficulty can be obviously reduced by adopting the shielding treatment method of the embodiment, the completion time is not more than 10 minutes, and the work efficiency is improved by nearly 5 times.
In addition, through adopting the compact heap 2 that sets up the chamfer structure, the chamfer structure is the inclined plane structure, and the assembly of not only being convenient for has still increased the area that compact heap 2 compressed tightly the reverse annular section of shielded wire 7, prevents to lead to local pressure too big because of the area of contact undersize of compact heap 2 and the reverse annular section of shielded wire 7, and then damages the shielded wire, has improved the stability of joint. In addition, the adoption sets up compact heap 2 of multiunit anti-drop structure, can prevent that cross cabin cable shielded wire from droing in the use, has improved the stability of joint.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (10)
1. The connector of the cabin-penetrating cable in the strong electromagnetic environment is characterized by comprising a switching sleeve (1), a fastening component and a cable culvert (5), wherein the switching sleeve (1), the fastening component and the cable culvert (5) are all of hollow cylinder structures;
the adapter sleeve (1) comprises a first section (11) and a second section (12);
the fastening assembly can be installed in the adapter sleeve (1), the first section of the adapter sleeve (1) can be installed in the cable culvert (5), and one end of the cable culvert (5) abuts against the connecting section between the first section (11) and the second section (12).
2. The joint of a through-the-cabin cable in a high electromagnetic environment according to claim 1, characterized in that the fastening assembly comprises a compression block (2) and a fastening sleeve (3), the compression block (2) being mountable inside the fastening sleeve (3).
3. The joint of a through-the-cabin cable in a high electromagnetic environment according to claim 2, characterized in that the fastening sleeve (3) is in threaded connection with the adapter sleeve (1).
4. The joint of the cabin-penetrating cable in the strong electromagnetic environment according to claim 2 or 3, wherein the compression block (2) and the fastening sleeve (3) are both of a hollow cylindrical structure.
5. A joint of a through-the-cabin cable in a strong electromagnetic environment according to claim 4, characterized in that the fastening sleeve (3) comprises a first through hole and a second through hole, the first aperture of the first through hole being smaller than the second aperture of the second through hole;
the second through hole is used for installing the pressing block (2).
6. A joint for a through-the-cabin cable in a high electromagnetic environment according to claim 5, characterized in that the length of the compact block (2) is less than the length of the second through hole.
7. The joint of the through-cabin cable in the strong electromagnetic environment as claimed in claim 6, wherein one end of the compression block (2) can abut against the end face where the first through hole is connected with the second through hole, and the other end of the compression block is exposed out of the second through hole.
8. The joint of the through-the-cabin cable in the strong electromagnetic environment according to any one of claims 1-3 and 5-7, characterized in that the end of the compact block (2) is provided with a chamfer structure.
9. The joint of the through-the-cabin cable in the strong electromagnetic environment according to claim 8, wherein the chamfer structure is an annular inclined surface.
10. A method for shielding a through-the-cabin cable in a strong electromagnetic environment, wherein the joint of the through-the-cabin cable in the strong electromagnetic environment of claims 1 to 9 is adopted, the method comprises the following steps:
the method comprises the following steps: processing the cabin penetrating cable (6) to expose the shielding wire; the adapter sleeve (1) is installed and fixed on the cable culvert (5);
step two: one end of the cabin penetrating cable (6) exposed out of the lead (8) sequentially penetrates through the fastening sleeve (3), the pressing block (2) and the adapter sleeve (1), and the lead (8) sequentially penetrates through the adapter sleeve (1) and the cable culvert (5) and extends into the cabin;
step three: the stripped shielded wires (7) are oppositely arranged in a 360-degree annular shape;
step four: and assembling the fastening assembly.
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| CN110581372A (en) * | 2019-09-17 | 2019-12-17 | 中国科学院长春光学精密机械与物理研究所 | reflection type grating ruler cable connector structure |
| CN110690676A (en) * | 2019-11-19 | 2020-01-14 | 南京赛弗尼电气有限公司 | Cable wall hole sealing and electromagnetic shielding device |
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| JP2005027446A (en) * | 2003-07-03 | 2005-01-27 | Hitachi Cable Ltd | Terminal structure of cable with shield layer |
| CN102576962A (en) * | 2010-07-05 | 2012-07-11 | 矢崎总业株式会社 | Shield connector |
| CN203328958U (en) * | 2013-06-25 | 2013-12-11 | 胡慧军 | Hyperbaric oxygen chamber device for electrocardiographic examination and electrocardiogram connecting device thereof |
| CN205211962U (en) * | 2015-09-07 | 2016-05-04 | 蒂森克虏伯电梯股份公司 | Elevator is shielded cable joint and elevator hauler for hauler |
| US20190372328A1 (en) * | 2017-01-25 | 2019-12-05 | Icotek Project Gmbh & Co. Kg | Cable bushing having shielding and sealing properties |
| CN107831338A (en) * | 2017-09-26 | 2018-03-23 | 杭州西湖电子研究所 | A kind of cable connector component with double shield function |
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| CN208849427U (en) * | 2018-08-30 | 2019-05-10 | 山东超越数控电子股份有限公司 | One kind wearing cabinet cable annular shield gasket structure |
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| CN110690676A (en) * | 2019-11-19 | 2020-01-14 | 南京赛弗尼电气有限公司 | Cable wall hole sealing and electromagnetic shielding device |
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| Publication number | Publication date |
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| CN113540835B (en) | 2023-07-04 |
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