CN112563843B - Grounding and protection method for multi-core electric connector - Google Patents
Grounding and protection method for multi-core electric connector Download PDFInfo
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- CN112563843B CN112563843B CN202011352030.0A CN202011352030A CN112563843B CN 112563843 B CN112563843 B CN 112563843B CN 202011352030 A CN202011352030 A CN 202011352030A CN 112563843 B CN112563843 B CN 112563843B
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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
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
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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
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/005—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for making dustproof, splashproof, drip-proof, waterproof, or flameproof connection, coupling, or casing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
Abstract
The invention provides a grounding and protection method of a multi-core electric connector, which sequentially comprises the following steps: 1) configuring a grounding protection seat and an electric connector, connecting a wiring terminal of the electric connector with a cable, connecting a socket end of the electric connector with a socket, and connecting the electric connector with the grounding protection seat by using a grounding wire; 2) plastically packaging a wiring end of the electric connector or integrally packaging the electric connector and a corresponding socket by using a protective heat-shrinkable sleeve; the method ensures that the watertight protection of the electric connector meets the requirement, ensures the good grounding of the cable shielding layer, meets the GJB grounding requirement of the cable shielding layer, and enhances the electromagnetic compatibility when the cable of the shipboard electronic cabinet is connected.
Description
Technical Field
The invention relates to the field of electric connectors, in particular to a grounding and protection method of a multi-core electric connector.
Background
Related patent 200810070414.6 winding and embedding type assembled cable joint and manufacturing method thereof in the market at present mainly describes a joint manufacturing method of a single-core cable, and can not meet the requirements of electromagnetic compatibility and electrical performance of grounding, shielding, filtering and the like of cable connection of electronic cabinets on ships. The marine multi-core electric connector is divided into two sections and three sections. Both multi-core electrical connectors include a plug section and a tail clamp section, wherein a plug section locking ring is sleeved on the outer peripheral surface of the plug section, and bolts are generally arranged on the tail clamp section. The grounding and protection treatment of the multi-core electric connector is blank, potential safety hazards of cable watertight protection treatment and grounding treatment exist, and the requirements of ship standards cannot be met.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention provides a grounding and shielding method for a multi-core electrical connector.
The invention provides a grounding and protection method of a multi-core electric connector, which sequentially comprises the following steps: 1) configuring a grounding protection seat and an electric connector, connecting a wiring terminal of the electric connector with a cable, connecting a socket end of the electric connector with a socket, and connecting the electric connector and the grounding protection seat by using a grounding wire; 2) and (3) plastically packaging the wiring end of the electric connector or plastically packaging the electric connector and the corresponding socket integrally by using a protective heat-shrinkable sleeve.
Further, the terminal of the electric connector comprises a plug section used for being electrically connected with the cable and a tail clamp section used for fixing the cable, a plug section locking ring is sleeved outside the plug section, and in the step 2), when the electric connector is only subjected to plastic packaging, the protective heat-shrinkable sleeve starts to be heat-sealed from the rear end of the plug section locking ring.
Further, in the step 2), the protective heat-shrinkable sleeve extends backwards to form a tail clamp section by 30-40 mm when the protective heat-shrinkable sleeve is subjected to plastic package.
Further, in the step 1), the number of the electric connectors is multiple and the electric connectors are arranged in a single row, each electric connector is connected in series and bridged by using a jumper wire, and then one of the electric connectors is connected with the grounding protection seat by using a grounding wire;
furthermore, when the electric connectors are arranged in multiple rows and multiple columns, the electric connectors in the same row are connected in series and bridged by using the jumper wires, then the electric connectors in the same column are bridged by using the jumper wires, and one of the electric connectors is connected with the grounding protection seat by using the grounding wire.
Furthermore, the tail clamping section comprises a clamping part arranged at one end far away from the plug section, the clamping part comprises a clamping screw and at least two arc-shaped clamping pieces, and the at least two clamping pieces are connected end to end through the clamping screw; in the step 1), a shielding outgoing line is led out from a shielding layer at one end of the cable connected with the electric connector, and when the jumper wire is installed, the relevant jumper wire and the shielding outgoing line are fixed together through a clamping screw on a tail clamping section of the electric connector.
As described above, the grounding and protection method for a multi-core electrical connector according to the present invention has the following advantages:
in the grounding and protection method of the multi-core electric connector, after the electric connector is grounded, the wiring end of the electric connector is subjected to plastic package or the cable connector and the corresponding socket are subjected to plastic package integrally, so that the electric connector can meet the requirement on watertight protection, the electric connector is ensured to be well grounded, the GJB grounding requirement of a cable shielding layer is met, and the electromagnetic compatibility during cable connection of an electronic cabinet on a ship is enhanced.
Drawings
FIG. 1 is a schematic diagram of a single two-piece electrical connector for grounding in accordance with the present invention;
FIG. 2 is a schematic diagram of a cable electrical connector end being plastic encapsulated after a single two-segment multi-core electrical connector of the present invention is grounded;
FIG. 3 is a schematic view of a cable connector and a corresponding socket being integrally plastic-encapsulated after a single two-segment multi-core electrical connector of the present invention is grounded;
FIG. 4 is a schematic diagram of a grounding method for a plurality of two-segment multi-core electrical connectors arranged in a single row according to the present invention;
fig. 5 is a schematic diagram of plastic-sealing a cable electrical connector end after a plurality of two-segment multi-core electrical connectors arranged in a single row are grounded according to the present invention;
fig. 6 is a schematic view illustrating plastic package of the cable electrical connector and the corresponding socket after grounding of a plurality of two-segment multi-core electrical connectors arranged in a single row according to the present invention;
FIG. 7 is a schematic diagram of a single three-piece electrical connector for grounding in accordance with the present invention;
FIG. 8 is a schematic diagram of a cable electrical connector end being overmolded after grounding of a single three-segment multi-core electrical connector of the present invention;
FIG. 9 is a schematic view of a cable connector and a corresponding socket being integrally plastic-encapsulated after a single three-segment multi-core electrical connector of the present invention is grounded;
FIG. 10 is a schematic diagram of a grounding method for a plurality of three-segment multi-core electrical connectors arranged in a single row according to the present invention;
FIG. 11 is a schematic view of a cable connector end being plastically packaged after a plurality of three-segment multi-core electrical connectors arranged in a single row are grounded according to the present invention;
fig. 12 is a schematic view of the cable electrical connector and the corresponding socket being integrally plastic-sealed after a plurality of three-segment multi-core electrical connectors arranged in a single row are grounded according to the present invention;
fig. 13 is a schematic view of a grounding method of the cable electrical connector after grounding a plurality of multi-core electrical connectors distributed in multiple rows and multiple columns according to the present invention.
Description of the drawings:
100. a cable; 200. an electrical connector; 210. a plug section; 211. a plug section locking ring; 220. a tail clamp section; 221. clamping a screw; 300. a protective heat-shrinkable sleeve; 400. shielding the outgoing line; 410. cold pressing the joint; 420. crimping a joint heat-shrinkable sleeve; 500. a jumper wire; 600. a ground line; 610. a grounding protection seat; 700. a socket; 800. an apparatus.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms such as "upper", "lower", "left", "right" and "middle" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship may be made without substantial technical changes.
As shown in fig. 1 to fig. 13, the grounding and protecting method of the multi-core electrical connector provided by the present invention sequentially comprises the following steps: 1) arranging the ground socket 610 and the electrical connector 200, connecting the terminal of the electrical connector 200 and the cable 100, and connecting the socket end of the electrical connector 200 and the socket 700, and connecting the electrical connector 200 and the ground socket 610 using the ground wire 600; 2) the terminal of the electrical connector 200 is plastically packaged or the electrical connector 200 and the corresponding socket 700 are integrally molded by using the protective heat shrink sleeve 300.
When the method is used for grounding and protecting the multi-core electric connector 200, the watertight protection of the connection between the electric connector 200 and the cable 100 can meet the requirement, the risk caused by the connection construction of the electric connector is reduced, meanwhile, the good grounding of the cable shielding layer is ensured, the GJB grounding requirement of the cable shielding layer is met, and the electromagnetic compatibility when the cable of the electronic cabinet on the ship is connected is enhanced. That is, the cable shield remains well grounded and has a resistance to ground of less than 10m Ω.
When the electrical connector 200 is molded, the terminals of the electrical connector 200 are generally molded in a common compartment area. While in common cabins of various ship types such as: the protection treatment of the wet cabin and the water spraying part of the washroom, the shower room, the toilet, the meal preparing room, the dish washing room, the staple food processing room, the fruit and vegetable storehouse, the meat storehouse, the fish storehouse, the boiling water room, the kitchen, the laundry room, the outdoor area and the like needs to carry out integral plastic packaging on the electric connector 200 and the socket 700.
As shown in fig. 2, 5, 8 and 11, the electrical connector 200 may have a two-segment structure as shown in fig. 1 to 6, or a three-segment structure as shown in fig. 7 to 12. Specifically, when the electrical connector 200 has a two-segment structure, as shown in fig. 1 to 6, the terminal of the electrical connector 200 includes a plug segment 210 for electrically connecting with the cable 100 and a tail clamp segment 220 for fixing the cable 100, the plug segment 210 and the tail clamp segment 220 are connected by screw threads, a plug segment locking ring 221 is sleeved outside the plug segment 210, one end of the plug segment 210 close to the tail clamp segment 220 is provided with a plurality of welding pins, and the welding pins are welded with the core wires of the cable 100 to realize the electrical connection between the plug segment 210 and the cable 100. When the electrical multi-core connector 200 has a three-segment structure, as shown in fig. 7 to 12, the terminal of the electrical connector 200 includes a plug segment 210 for electrically connecting with the cable 100, a tail clamp segment 220 for fixing the cable 100, and a connection tube connected between the plug segment 210 and the tail clamp segment 220, the plug segment 210 and the connection tube, and the connection tube and the tail clamp segment 220 are all in threaded connection, a plug segment locking ring 221 is sleeved outside the plug segment 210, and one end of the plug segment 210 close to the tail clamp segment 220 is provided with a plurality of welding pins which are welded with core wires of the cable 100 to achieve electrical connection between the plug segment 210 and the cable 100. Regardless of the two-piece multi-core electrical connector 200 or the three-piece multi-core electrical connector 200, in step 2), the protective heat shrinkable sleeve 300 is heat sealed from the rear end of the plug section locking ring 211 when only the electrical connector 200 is plastic sealed. The plastic package is started from the rear end of the plug section locking ring 211, so that the electric connector 200 can be normally plugged with the socket 700 after the electric connector 200 is subjected to the plastic package, and the inconvenience in operation of the electric connector 200 caused by the plastic package of the electric connector 200 is avoided.
Further, in the two-segment multi-core electrical connector 200 or the three-segment multi-core electrical connector 200, as shown in fig. 1 to 6 or fig. 7 to 12, the tail clamp segment 220 includes a clamping portion disposed at an end away from the plug segment 210, and the clamping portion is used for clamping the cable. The clamping portion comprises a clamping screw 221 and at least two arc-shaped clamping pieces, and the at least two clamping pieces are connected end to end through the clamping screw 221. In the step 2), when the protective heat-shrinkable sleeve 300 is subjected to plastic packaging, the length of the protective heat-shrinkable sleeve 300 extending backwards out of the tail clip 220 is L1, and the length of the L1 is 30mm-40 mm. The extended length of the protective heat shrink 300 ensures that the exposed portion of the electrical connector 200 that is connected to the cable 100 is completely sealed.
Further, the number of the electrical connectors 200 is at least one, and several preferred embodiments are provided below for different numbers and different arrangements of the electrical connectors 200.
Example one
When there is only one multi-core electrical connector 200, as shown in fig. 1 or 7, when the multi-core electrical connector 200 is connected to the cable 100, the shielding lead wire 400 is led out from the shielding layer at the end where the cable 100 is connected to the electrical connector 200, the end of the shielding lead wire 400 and the end of the ground wire 600 are fixed and electrically connected by the clamping screw 221 of the tail clamping section 220, and the other end of the ground wire 600 is connected to the ground socket 610, thereby achieving the grounding of the electrical connector 200 and the grounding of the shielding layer of the cable 100; next, as shown in fig. 2, after the electrical connector 200 is grounded, the terminals of the electrical connector 200 are plastically molded by using the protective heat-shrinkable sleeve 300, and the protective heat-shrinkable sleeve 300 is heat-sealed from the rear end of the plug section locking ring 211; alternatively, as shown in fig. 3, after the electrical connector 200 is grounded, the entire electrical connector 200 and the corresponding socket 700 are molded with a protective heat shrink sleeve 300. As shown in fig. 7, 8 and 9, the grounding and shielding method of the single three-segment multi-core electrical connector is the same as the grounding and shielding method of the two-segment multi-core electrical connector.
Example two
As shown in fig. 4 or 10, in step 1), a plurality of electrical connectors 200 are arranged in a single row, each electrical connector 200 is connected in series and bridged by using a jumper wire 500, and one of the electrical connectors 200 is connected to a ground socket 610 by using a ground wire 600. The specific wiring mode is as follows: when the multi-core electrical connector 200 is connected to the cable 100, the shielding outgoing line 400 is led out from the shielding layer at the end of the cable 100 connected to the electrical connector 200, and the shielding outgoing line 400 and the jumper 500 are fixed and electrically connected by the clamping screw 221 of the tail clamping section 220; in this electrical connector 200 connected to the ground wire 600, the shield lead wire 400 and the ground wire 600 are fixed and electrically connected by the clamping screw 221 of the tail clamp section 220, thereby achieving grounding of the plurality of electrical connectors 200 and grounding of the shield layer of the cable 100 connected to each electrical connector 200.
By adopting the method, the situation that each electric connector 200 is directly connected with the grounding protection seat 610 by the grounding wire 600 can be avoided, the operation is convenient on the premise that each electric connector 200 can be grounded, meanwhile, the grounding protection seats 610 and the grounding wire 600 can be saved, and the grounding of a plurality of electric connectors 200 is realized, so that only one grounding protection seat 610 is needed to be configured. When the jumper wire 500 is selected, the interface agent can be uniformly selected to be 1.5mm 2 Or 2.5mm 2 . Meanwhile, as shown in fig. 5 and 6 or fig. 11 and 12, the jumper wire 500 may have the same length, and an arc shape with a height of about 80mm is formed after plastic packaging, that is, L2 is 80mm, so as to ensure that the electrical connector 200 can be separately plugged and unplugged when in use.
EXAMPLE III
As shown in fig. 13, in step 1), when the plurality of electrical connectors 200 are arranged in multiple rows and multiple columns, the electrical connectors 200 in the same row are connected in series by using the jumper 500, and then the electrical connectors 200 in the same column are connected by using the jumper 200, so that one of the electrical connectors 200 is connected to the ground socket 610 by using the ground line 600. The electrical connectors 200 are connected by the jumper wires 500 to form a plurality of ground loops, thereby ensuring that the electrical connectors 200 are grounded as required. The connection mode is the same as the two embodiments, specifically: when the multi-core electrical connector 200 is connected to the cable 100, the shielding outgoing line 400 is led out from the shielding layer at the end of the cable 100 connected to the electrical connector 200, and the shielding outgoing line 400 and the jumper 500 are fixed and electrically connected by the clamping screw 221 of the tail clamping section 220; in this electrical connector 200 connected to the ground wire 600, the shield lead wire 400 and the ground wire 600 are fixed and electrically connected by the clamping screw 221 of the tail clamp section 220, thereby achieving grounding of the plurality of electrical connectors 200 and grounding of the shield layer of the cable 100 connected to each electrical connector 200.
In the above three embodiments, the shielding layer of the cable 100 is grounded, which can meet the requirement that the resistance of the shielding layer of the cable to ground is less than 10m Ω. In addition, if the number of the cold press joints 410 fixed to the clamping screw 221 is too large, it is considered that the jumper 500 is mounted on one cold press joint 410 to be connected and fixed.
The grounding and protection of the multi-core electric connector 200 are carried out by adopting the method, and the attractive and uniform effects are enhanced. By unifying the grounding and protection processing method of the single electric connector 200 and the grounding and protection processing method of the plurality of series-connected cross-over grounding electric connectors 200, the grounding appearance of the shipboard electronic cabinet is combed, the grounding loop is beautified, and the effects of attractive and unified connecting process of the electric connectors 200 and the cable 100 are achieved
Of course, in performing the above operation, the following preparation may be performed in advance. After the equipment cabinet is installed or the equipment installation template is preassembled, the cable 100 can be cut and wired. The cable 100 at the incoming line should be left with the proper amount of telescoping and movement. In order to ensure the unity of the aesthetics of the cabins, wires, bridging grounding wires and IV lapping strips (see the implementation process of electromagnetic compatibility) used on equipment cabinets and chassis are gray; 1.5mm for use on electrical connector 200 2 And 2.5mm 2 The two specifications of wires, the bridging grounding wire and the lapping strip are black; insulating tape and heat-insulating tapeThe shrink sleeve is black. The used heat-shrinkable sleeve is made of fireproof flame-retardant material and does not contain glue. The heat-shrinkable sleeve for wiring is of a non-adhesive type, and the protective heat-shrinkable sleeve for protection 300 is of an adhesive type. The core wire insulation uses a white flame-retardant plastic sleeve or a transparent heat-shrinkable sleeve.
After the grounding and protection of the multi-core electrical connector 200 are completed, the grounding and protection conditions can be checked, thereby avoiding human negligence leaks and unifying the beautiful connection process of the electrical connector 200 and the cable 100. The inspection steps are as follows:
s1, checking the wiring condition of the equipment, checking whether the clamping sheet of the electric connector 200 is firmly clamped with the cable 100 or not, and using a heat-shrinkable sleeve for wiring to shrink tightly or not; s2, checking the connection process of the electric connector 200 and the cable 100 to be beautiful and uniform, and meeting the requirements of the corresponding process for various diagrams; s3, the ground wire 600 used is checked to be gray according to the method, and the color of the insulating tape and the heat-shrinkable sleeve is black. S4, detecting a grounding resistor and an insulation resistor; s5, measuring the grounding resistance of the metal part of the shell of each electric connector 200 to the ship shell by using a milliohm meter, wherein the direct current resistance value is less than or equal to 10m omega; s6, separating the two-end electric connector 200 from the two-end equipment, checking the insulation resistance value of each electric connector pin and jack on the metal part of the electric connector shell by using a megohmmeter according to the specification of a test document, wherein the insulation resistance value between the pins and between the jacks is not less than 10M omega.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Those skilled in the art can modify or change the above-described embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (4)
1. A grounding and protection method of a multi-core electric connector is characterized in that: the method sequentially comprises the following steps: 1) arranging a grounding protection seat (610) and an electric connector (200), connecting a terminal of the electric connector (200) with a cable (100) and connecting a socket end of the electric connector (200) with a socket (700), and connecting the electric connector (200) with the grounding protection seat (610) by using a grounding wire (600); if the number of the electric connectors (200) is multiple and the electric connectors are arranged in a single row, each electric connector (200) is connected in series and bridged by using a jumper wire (500), and then one electric connector (200) is connected with the grounding protection seat (610) by using a grounding wire (600); if the number of the electric connectors (200) is multiple, and the electric connectors are arranged in multiple rows and multiple columns, the electric connectors (200) in the same row are connected in series and bridged by using the jumper wires (500), then the electric connectors (200) in the same column are bridged by using the jumper wires (500), and one electric connector (200) is connected with the grounding protection seat (610) by using the grounding wire (600); 2) and (3) plastically packaging the terminal of the electric connector (200) by using a protective heat-shrinkable sleeve (300) or plastically packaging the electric connector (200) and the corresponding socket (700) integrally.
2. The grounding and protection method of multi-core electrical connector according to claim 1, wherein the terminal of the electrical connector (200) comprises a plug section (210) for electrically connecting with the cable (100) and a tail clamp section (220) for fixing the cable (100), the plug section (210) is sleeved with a plug section locking ring (211); in the step 2), when only the electric connector (200) is subjected to plastic sealing, the protective heat-shrinkable sleeve (300) starts to be subjected to heat sealing from the rear end of the plug section locking ring (211).
3. The grounding and shielding method of claim 2, wherein: in the step 2), when the protective heat-shrinkable sleeve (300) is used for plastic package, the protective heat-shrinkable sleeve (300) extends backwards to a tail clamping section (220) by 30-40 mm.
4. The grounding and shielding method of multi-core electrical connector according to claim 2 or 3, wherein the tail clamping section (220) comprises a clamping portion disposed at an end far away from the plug section (210), the clamping portion comprises a clamping screw (221) and at least two arc-shaped clamping pieces, and the at least two clamping pieces are connected end to end by the clamping screw (221); in the step 1), a shielding outgoing line (400) is led out from a shielding layer at one end of the cable (100) connected with the electric connector (200), and when the jumper (500) is installed, the relevant jumper (500) and the shielding outgoing line (400) are fixed together through a clamping screw (221) on a tail clamping section (220) of the electric connector (200).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011352030.0A CN112563843B (en) | 2020-11-26 | 2020-11-26 | Grounding and protection method for multi-core electric connector |
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| CN202011352030.0A CN112563843B (en) | 2020-11-26 | 2020-11-26 | Grounding and protection method for multi-core electric connector |
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| CN112563843B true CN112563843B (en) | 2022-08-16 |
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| US7114990B2 (en) * | 2005-01-25 | 2006-10-03 | Corning Gilbert Incorporated | Coaxial cable connector with grounding member |
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|---|---|---|---|---|
| EP0196977A2 (en) * | 1985-04-01 | 1986-10-08 | Daiichi Denshi Kogyo Kabushiki Kaisha | Method of making a multi contact connection having ground terminal block |
| CN2924488Y (en) * | 2004-12-08 | 2007-07-18 | Dbt有限公司 | A sensor for mining equipment |
| US7901243B1 (en) * | 2010-03-30 | 2011-03-08 | Tyco Electronics Corporation | Methods and systems for forming a protected disconnectable joint assembly |
| CN103222124A (en) * | 2010-11-22 | 2013-07-24 | 安德鲁有限责任公司 | Laser weld coaxial connector and interconnection method |
| CN205543559U (en) * | 2016-04-12 | 2016-08-31 | 上海三竹机电设备有限公司 | Take multicore power connector of ground structure |
| CN110311265A (en) * | 2018-12-18 | 2019-10-08 | 国网内蒙古东部电力有限公司经济技术研究院 | Low temperature resistant pre-fabricated electric cables |
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| CN112563843A (en) | 2021-03-26 |
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