CN114336098B - Copper-aluminum transition junction box of switch before table - Google Patents
Copper-aluminum transition junction box of switch before table Download PDFInfo
- Publication number
- CN114336098B CN114336098B CN202111480157.5A CN202111480157A CN114336098B CN 114336098 B CN114336098 B CN 114336098B CN 202111480157 A CN202111480157 A CN 202111480157A CN 114336098 B CN114336098 B CN 114336098B
- Authority
- CN
- China
- Prior art keywords
- copper
- shell
- aluminum
- blade
- puncture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Distribution Board (AREA)
- Connection Or Junction Boxes (AREA)
Abstract
The invention discloses a copper-aluminum transition junction box of a front switch of a meter, which comprises an enhanced insulating shell, a connecting bolt, a connecting nut and a connecting sheet, wherein the enhanced insulating shell comprises an upper shell and a lower shell, one end of the connecting bolt sequentially penetrates through the lower shell and the upper shell and then is connected with the connecting nut, the other end of the connecting bolt tightly presses the lower shell, a puncture blade is fixed on the upper shell and/or the lower shell, the puncture blade is arranged between the upper shell and the lower shell, the connecting sheet comprises a copper end and an aluminum end, the copper end of the connecting sheet is connected with the puncture blade, and the copper end of the connecting sheet extends out of the enhanced insulating shell. The invention provides a copper-aluminum transition junction box of a front-meter switch, which can solve the problem that the copper-aluminum joint of the front-meter switch of a user is easy to burn and damage due to different materials of a drop wire (aluminum) and a binding post (copper).
Description
Technical Field
The invention relates to the technical field of power equipment overhaul tools, in particular to a copper-aluminum transition junction box of a switch in front of a meter.
Background
The connection part of the wiring terminal for ammeter connection or user power transmission is generally fixedly connected through a wiring screw, and the wiring screw is extremely easy to cause broken strands of wires or abrasion of the wires, so that the problems of overcurrent, meter burning, wire burning and the like occur, the metering application life is reduced, the production maintenance cost is increased, and the problem of lower reliability of user power supply is also caused; meanwhile, when the lead is mostly made of aluminum, the lead can cause the problems of copper-aluminum connection oxidation and the like when the humidity of the external environment is high or the periphery is wet in rainy days, and also can cause various circuit faults such as surface burning, line burning and the like. Copper and aluminum are used as two main materials for electric energy transmission, the potentials of the copper and the aluminum are different, when the copper and the aluminum are in direct contact, the contact surface between the copper and the aluminum can be exposed to air, moisture, carbon dioxide and other impurities, the contact surface between the copper and the aluminum is extremely easy to form electrolyte under the action of the impurities, so that a primary cell taking the aluminum as a negative electrode and the copper as a positive electrode is formed, the galvanic corrosion of the aluminum is generated by the primary cell reaction, the oxidation of an aluminum wire is accelerated, and the contact resistance of the joint of the copper and the aluminum is increased; in addition, the elastic modulus and the thermal expansion coefficient of the copper and the aluminum are greatly different, when the copper and the aluminum are in direct contact, after a plurality of cold and hot cycles (such as power on and power off) are performed in operation, a larger gap is generated at the contact point to influence the contact, and the contact resistance is increased.
In the prior art, copper wires and aluminum wires are connected together, and copper and aluminum can be tightly pressed together by installing a copper-aluminum transition connecting terminal, so that gaps are not formed between metal copper and metal aluminum, and the copper-aluminum transition connecting terminal cannot be contacted with electrolyte and water in air. When the copper binding post is applied to a switch in front of a user meter box, a drop wire (aluminum wire) is crimped on an aluminum part of a copper-aluminum transition binding post by a hydraulic tool, so that the drop wire is fully contacted with electrolyte and air is completely isolated, then the copper binding post part is fully contacted with an empty copper binding post in the user meter box, and then a binding screw on the empty copper binding post is screwed down, so that the two copper binding posts are fully contacted. The problem that the joint of the switch is easy to burn due to different materials of a drop wire (aluminum) and a binding post (copper) before a user meter box is solved by adopting the copper-aluminum transition binding post, and the defects are obvious: 1. in the process of using the copper-aluminum transition wiring terminal, an operator needs to operate a crimping tool to crimp one end of the copper-aluminum wiring terminal, so that power failure operation is required when the copper-aluminum wiring terminal is used, otherwise, the life safety of on-site operators can be directly endangered. 2. The copper-aluminum transition wiring terminal is complex to operate in the actual use process, time and labor are consumed, the requirement on the crimping process is slightly high, and the following hidden dangers may exist due to careless operation: 1. the insulated wire is peeled without using a special electric peeling tool, the aluminum wire is damaged by manual peeling, and even the wire is broken after bending, so that the hidden danger of heating is caused. 2. The contact surface is mishandled. In the construction process, the burr part of the contact surface is not treated, and conductive paste is not uniformly coated before installation (the conductivity can be improved, the electric corrosion caused by copper-aluminum lap joint is relieved), so that the effective contact area is reduced, the contact resistance is increased, and a heating point is formed. 3. When the wire is crimped, the wire is not inserted into the bottom of the aluminum conductive tube of the copper-aluminum transition terminal, so that the contact area is reduced, and the current-carrying capacity is reduced. 4. The compression type equipment wire clamp is installed without using a compression mold with corresponding size to carry out compression, the compression mold is needed to carry out compression on the aluminum end of the copper-aluminum transition wiring terminal and the lead, and the compression process should meet the requirement of contact resistance. The die is oversized, so that poor contact between the wire and the wire clamp terminal can be caused, contact resistance is increased, and a heating phenomenon is generated. Therefore, it is necessary to design a copper-aluminum transition junction box for the front switch of the meter box to solve the problem that the copper-aluminum joint of the front switch of the meter box is easy to burn due to different materials of the drop wire (aluminum) and the binding post (copper).
Disclosure of Invention
The invention aims at: the problem that the copper-aluminum joint is easy to burn and damage caused by different materials of a drop wire (aluminum) and a binding post (copper) of a switch in front of a user meter box is solved.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a switch copper aluminium transition terminal box before table, includes reinforcing insulating housing, connecting bolt, coupling nut and connection piece, reinforcing insulating housing includes casing and lower casing, and connecting bolt one end passes down the casing in proper order and is connected with coupling nut after going up the casing, and the other end of connecting bolt compresses tightly down the casing, is fixed with puncture blade on last casing and/or the lower casing, and puncture blade sets up between last casing and lower casing, the connection piece includes copper end and the aluminium end of aluminium system, and the aluminium end and the puncture blade of connection piece are connected, and the copper end of connection piece stretches out reinforcing insulating housing.
In the technical scheme, the reinforced insulating shell plays a role in insulating protection. The puncture blade has the structure with the knife thorn, and when pressure is applied to the puncture blade, the puncture blade can puncture the insulating layer of the aluminum wire, and the puncture blade is fully contacted with the aluminum conductor. The connecting piece plays a role of copper-aluminum transition and is used for connecting an aluminum wire with an empty copper terminal without loss. The specific operation and working principle of the technical scheme are as follows: the drop wire (namely the aluminum wire) is stretched into the copper-aluminum transition junction box, and then the connecting bolt is slightly screwed down to fix the position of the drop wire (the drop wire is ensured to stretch into the required depth and is not loosened). The connecting nut is screwed by the socket spanner, in the process, the connecting nut is applied with moment, and the teeth on the puncture blade can puncture the cable insulation layer and contact with the drop wire, so that puncture electrification is realized. And when the moment reaches a set value, connecting the copper end of the connecting sheet with an empty copper binding post by using a screwdriver. Above-mentioned technical scheme is through integrating copper aluminium transition binding post's function in copper aluminium transition terminal box, lets drop line (aluminium wire) no longer directly with the copper terminal connection that opens in the sky, but behind the copper aluminium transition terminal box, with open the sky and be connected for originally be that aluminium wire and the copper terminal connection that opens in the sky become copper aluminium transition terminal box connect copper sheet and open copper spliced pole connection, thoroughly solved the easy problem of burning loss of copper aluminium joint department. The technical scheme has the advantages of simple installation, time saving and labor saving; low cost; the safety and reliability are realized; can be used in live working without power failure.
Preferably, the upper shell and the lower shell are respectively provided with a plurality of piercing blades, the piercing blades on the upper shell and the piercing blades on the lower shell are in one-to-one correspondence, the piercing blades corresponding to the piercing blades form a group of blade groups, and the blade groups of different groups are arranged in an insulating way. The structure can enable the puncture blade to have better puncture effect on the insulating layer of the aluminum wire and better close contact with the internal aluminum guide.
Preferably, the plurality of blade groups are symmetrically arranged by taking the connecting bolts as symmetry axes. The structure can keep the cutting depth and the pressing force of each blade group on each aluminum wire as consistent as possible, and ensures the cutting effect and the contact conductive effect.
Preferably, the lower shell comprises a first outer shell and a first inner shell, the first outer shell and the first inner shell are fixed through two connecting columns, the upper shell comprises a second outer shell and a second inner shell, the second outer shell is fixed with the second inner shell, the second inner shell is arranged between the first outer shell and the first inner shell, the two connecting columns penetrate through the second inner shell, the first inner shell is arranged between the second outer shell and the second inner shell, the puncture blades are arranged on the second inner shell and/or the first outer shell, the two connecting columns are symmetrically arranged by using connecting bolts, the number of blade sets is odd, one blade set is arranged right below the connecting bolts, and the rest blade sets are symmetrically arranged by using the connecting bolts.
When the service line is odd number (such as three-phase line), if not set up symmetrically, when coupling nut is screwed up, each piercing depth of blade can be inconsistent, leads to partly piercing knife excessive cutting, damages the wire, and partly piercing knife cutting depth is not enough, and piercing knife and direction contact are bad, and local heating is serious. According to the technical scheme, the lower shell and the upper shell are arranged in a double-layer mode, one blade set is arranged right below the connecting bolt, and the other blade sets are symmetrically arranged by taking the connecting bolt as a symmetrical axis. Thereby the cutting depth and the pressing force of each blade group to each aluminum wire are kept consistent as much as possible, and the cutting effect and the contact conductive effect are ensured. The using method of the transition junction boxes is consistent with that of even transition junction boxes, and the operation is simple.
Preferably, one end of the reinforced insulation shell, where the blade set is arranged, is open, and the other end of the reinforced insulation shell is provided with an insulation terminal cap sleeve. The insulating end caps may define the amount of penetration of the aluminum wire.
Preferably, a sealing gasket is arranged at the opening of the reinforced insulating shell. The sealing gasket has sealing function and is used for isolating air, water and the like.
Preferably, waterproof silicone grease is arranged in the reinforced insulating shell. When the gasket ring is pressed down around the location where the subscriber line is pierced, the silicone grease in the housing overflows. The waterproof silicone grease can prevent air and water from affecting electrical contact, and plays a role in strengthening tightness.
Preferably, the connecting bolt is a high-strength bolt.
Preferably, the connecting nut is a torque nut. The torque nut can ensure that the puncture blade can puncture the insulating layer of the aluminum wire without damaging the aluminum core. The torque nut controls the penetration amount of the penetration blade and ensures that the penetration blade does not stab the aluminum core. When the moment reaches a set value, the nut moment mechanism falls off.
The beneficial effects of the invention are as follows: (1) The copper-aluminum transition wiring terminal is integrated in the copper-aluminum transition wiring box, so that the drop wire (aluminum wire) is not directly connected with the empty copper wiring terminal any more, but is connected with the empty switch after passing through the copper-aluminum transition wiring box, so that the connection of the aluminum wire and the empty switch copper wiring terminal is changed into the connection of the copper-aluminum transition wiring box, and the connection of the copper sheet and the empty switch copper connection column, thereby thoroughly solving the problem of easy burning at the copper-aluminum joint; (2) simple and convenient installation, time saving and labor saving; low cost; the safety and reliability are realized; the hot-line work can be performed without power failure and the like; (3) When the number of the household wires is odd, the cutting depth and the pressing force of each blade group on each aluminum wire can be kept consistent as much as possible, and the cutting effect and the contact conductive effect are ensured.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a schematic structural diagram of embodiment 2.
In the figure: the reinforced insulation shell 1, the lower shell 1.1, the first outer shell 1.1.1, the first inner shell 1.1.2, the connecting column 1.1.3, the upper shell 1.2, the second outer shell 1.2.1, the second inner shell 1.2.2, the connecting bolt 2, the connecting nut 3, the connecting sheet 4, the puncture blade 5 and the insulation terminal cap sleeve 6.
Detailed Description
The invention is further described below with reference to the drawings and specific embodiments.
Example 1:
as shown in fig. 1, the copper-aluminum transition junction box of the switch in front of the watch comprises a reinforced insulating shell 1, a connecting bolt 2, a connecting nut 3 and a connecting sheet 4, wherein the connecting bolt 2 is a high-strength bolt. The coupling nut 3 is a torque nut. The reinforced insulation shell 1 comprises an upper shell 1.2 and a lower shell 1.1, one end of a connecting bolt 2 sequentially penetrates through the lower shell 1.1 and the upper shell 1.2 and then is connected with a connecting nut 3, the other end of the connecting bolt 2 is tightly pressed against the lower shell 1.1, a puncture blade 5 is fixed on the upper shell 1.2 and/or the lower shell 1.1, the puncture blade 5 is arranged between the upper shell 1.2 and the lower shell 1.1, the connecting piece 4 comprises a copper end made of copper and an aluminum end made of aluminum, the aluminum end of the connecting piece 4 is connected with the puncture blade 5, and the copper end of the connecting piece 4 stretches out of the reinforced insulation shell 1. The reinforced insulation housing 1 is provided with a blade set, which is open at one end and an insulation terminal cap 6 at the other end. The opening of the reinforced insulating shell 1 is provided with a sealing gasket. The reinforced insulating shell 1 is internally provided with waterproof silicone grease. The upper shell 1.2 and the lower shell 1.1 are respectively provided with a plurality of piercing blades 5, the piercing blades 5 on the upper shell 1.2 and the piercing blades 5 on the lower shell 1.1 are in one-to-one correspondence, the piercing blades 5 corresponding to each other form a group of blade groups, and the blade groups of different groups are arranged in an insulating way. The blade groups are symmetrically arranged by taking the connecting bolts 2 as symmetry axes.
In the technical scheme, the reinforced insulating shell 1 plays an insulating protection role. The puncture blade 5 has a structure with a knife-like puncture, and when pressure is applied to the puncture blade 5, the puncture blade 5 can puncture the insulation layer of the aluminum wire, and the puncture blade 5 is fully contacted with the aluminum conductor. The connecting piece 4 plays a role of copper-aluminum transition and is used for connecting an aluminum wire with an empty copper terminal in a lossless manner. The specific operation and working principle of the technical scheme are as follows: the drop wire (namely the aluminum wire) is stretched into the copper-aluminum transition junction box, and then the connecting bolt 2 is slightly screwed down to fix the position of the drop wire (the drop wire is ensured to stretch into the required depth and is not loosened). The connecting nut 3 is screwed by a socket spanner, in the process, the connecting nut 3 is applied with moment, and the teeth on the puncture blade 5 can puncture the cable insulation layer and contact with the drop wire, so that puncture electrification is realized. And when the moment reaches a set value, the copper end of the connecting sheet 4 is connected with an empty copper binding post by a screwdriver. Above-mentioned technical scheme is through integrating copper aluminium transition binding post's function in copper aluminium transition terminal box, lets drop line (aluminium wire) no longer directly with the copper terminal connection that opens in the sky, but behind the copper aluminium transition terminal box, with open the sky be connected for originally be that aluminium wire and open copper terminal connection become copper aluminium transition terminal box's connection copper sheet and open copper spliced pole 1.1.3 be connected, thoroughly solved copper aluminium junction department and easily burnt the problem of loss. The technical scheme has the advantages of simple installation, time saving and labor saving; low cost; the safety and reliability are realized; can be used in live working without power failure.
Example 2:
as shown in fig. 2, on the basis of embodiment 1, the lower case 1.1 includes a first outer case 1.1.1 and a first inner case 1.1.2, the first outer case 1.1.1 and the first inner case 1.1.2 are fixed by two connecting posts 1.1.3, the upper case 1.2 includes a second outer case 1.2.1 and a second inner case 1.2.2, the second outer case 1.2.1 is fixed with the second inner case 1.2.2, the second inner case 1.2.2 is disposed between the first outer case 1.1.1 and the first inner case 1.1.2, two spliced poles 1.1.3 pass second inlayer casing 1.2.2, and first inlayer casing 1.1.2 sets up between second inlayer casing 1.2.1 and second inlayer casing 1.2.2, puncture blade 5 sets up on second inlayer casing 1.2.2 and/or first inlayer casing 1.1.1, and two spliced poles 1.1.3 use connecting bolt 2 to set up as symmetry axis symmetry, and blade group quantity is 3, and wherein a set of blade group sets up under connecting bolt 2, and other two sets of blade groups use connecting bolt 2 to set up for symmetry axis symmetry.
When the service line is odd number (such as three-phase line), if the service line is not symmetrically arranged, when the connecting nut 3 is screwed up, the penetration depths of the puncture blades 5 may be inconsistent, so that part of the puncture blades excessively cut into the cable to damage the wire, part of the puncture blades have insufficient cutting depths, the puncture blades 5 are in poor contact with the guide, and the local heating is serious. In the technical scheme, the lower shell 1.1 and the upper shell 1.2 are arranged in a double-layer mode, one group of blade groups can be arranged right below the connecting bolt 2, and the rest blade groups are symmetrically arranged by taking the connecting bolt 2 as a symmetrical axis. Thereby the cutting depth and the pressing force of each blade group to each aluminum wire are kept consistent as much as possible, and the cutting effect and the contact conductive effect are ensured. The using method of the transition junction boxes is consistent with that of even transition junction boxes, and the operation is simple.
The beneficial effects of the invention are as follows: (1) The copper-aluminum transition wiring terminal is integrated in the copper-aluminum transition wiring box, so that the drop wire (aluminum wire) is not directly connected with the empty copper wiring terminal any more, but is connected with the empty switch after passing through the copper-aluminum transition wiring box, so that the connection of the aluminum wire and the empty copper wiring terminal is changed into connection of a copper sheet of the copper-aluminum transition wiring box and the empty copper connection column 1.1.3, and the problem that the copper-aluminum joint is easy to burn is thoroughly solved; (2) simple and convenient installation, time saving and labor saving; low cost; the safety and reliability are realized; the hot-line work can be performed without power failure and the like; (3) When the number of the household wires is odd, the cutting depth and the pressing force of each blade group on each aluminum wire can be kept consistent as much as possible, and the cutting effect and the contact conductive effect are ensured.
Claims (7)
1. The utility model provides a switch copper aluminium transition terminal box before table, its characterized in that, including reinforcing insulating housing, connecting bolt, coupling nut and connection piece, reinforcing insulating housing includes upper housing and lower casing, and connecting bolt one end passes down the casing in proper order and is connected with coupling nut after going up the casing, and the other end of connecting bolt compresses tightly down the casing, is fixed with the puncture blade on upper housing and/or the lower casing, and the puncture blade sets up between upper housing and lower casing, the connection piece includes copper-made copper end and aluminium system's aluminium end, and the aluminium end of connection piece is connected with the puncture blade, and the copper end of connection piece stretches out reinforcing insulating housing;
the upper shell and the lower shell are respectively provided with a plurality of puncture blades, the puncture blades on the upper shell and the puncture blades on the lower shell are in one-to-one correspondence, the corresponding puncture blades form a group of blade groups, and the blade groups of different groups are arranged in an insulating way;
the lower shell comprises a first outer shell and a first inner shell, the first outer shell and the first inner shell are fixed through two connecting columns, the upper shell comprises a second outer shell and a second inner shell, the second outer shell is fixed with the second inner shell, the second inner shell is arranged between the first outer shell and the first inner shell, the two connecting columns penetrate through the second inner shell, the first inner shell is arranged between the second outer shell and the second inner shell, the puncture blade is arranged on the second inner shell and/or the first outer shell, the two connecting columns are symmetrically arranged by using connecting bolts, the number of blade groups is odd, one blade group is arranged under the connecting bolts, and the rest blade groups are symmetrically arranged by using the connecting bolts.
2. The copper-aluminum transition junction box of a switch in front of a meter according to claim 1, wherein the plurality of blade sets are symmetrically arranged with the connecting bolts as symmetry axes.
3. A copper-aluminium transition junction box for a switch in front of a meter according to claim 1 or 2, wherein the reinforced insulating housing is provided with a blade set at one end opening and an insulating terminal cap at the other end.
4. A copper-aluminum transition junction box for a switch in front of a meter according to claim 3, wherein a sealing gasket is arranged at the opening of the reinforced insulating housing.
5. A copper-aluminum transition junction box for a switch in front of a meter according to claim 1 or 2, wherein waterproof silicone grease is arranged in the reinforced insulating shell.
6. A switch copper aluminium transition junction box according to claim 1 or 2, wherein the connecting bolts are high strength bolts.
7. A copper-aluminum transition junction box for a switch in front of a meter according to claim 1 or 2, wherein said coupling nut is a torque nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111480157.5A CN114336098B (en) | 2021-12-06 | 2021-12-06 | Copper-aluminum transition junction box of switch before table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111480157.5A CN114336098B (en) | 2021-12-06 | 2021-12-06 | Copper-aluminum transition junction box of switch before table |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114336098A CN114336098A (en) | 2022-04-12 |
| CN114336098B true CN114336098B (en) | 2023-07-28 |
Family
ID=81048351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111480157.5A Active CN114336098B (en) | 2021-12-06 | 2021-12-06 | Copper-aluminum transition junction box of switch before table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114336098B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1382750A (en) * | 1973-06-20 | 1975-02-05 | Hego Electric Gmbh | Electrical terminal |
| DE4023282A1 (en) * | 1990-07-21 | 1992-01-23 | Stocko Metallwarenfab Henkels | Bush with electrical connections - has blade contacts that receive number of signal carrying wires |
| JP2006004733A (en) * | 2004-06-17 | 2006-01-05 | Yazaki Corp | Terminal connecting structure using bolt, and electric junction box provided with it |
| CN203192955U (en) * | 2013-04-25 | 2013-09-11 | 王方玉 | Piercing connector |
| CN203774486U (en) * | 2014-03-05 | 2014-08-13 | 宁波奉金电力金具有限公司 | Insulated wire puncture clamp |
| CN203883137U (en) * | 2014-06-13 | 2014-10-15 | 浙江科易电气有限公司 | Insulation piercing wire clamp convenient to install |
| CN205790647U (en) * | 2016-05-19 | 2016-12-07 | 浙江诚琳电力科技有限公司 | A kind of insulation puncture line clamping with temperature rise alarm function |
| CN207282735U (en) * | 2017-10-21 | 2018-04-27 | 南京聚联输变电安装有限责任公司 | A kind of cable insulation penetrating cable clamp |
| CN211556185U (en) * | 2020-03-19 | 2020-09-22 | 左易电力设备有限公司 | Puncture wire clamp |
-
2021
- 2021-12-06 CN CN202111480157.5A patent/CN114336098B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1382750A (en) * | 1973-06-20 | 1975-02-05 | Hego Electric Gmbh | Electrical terminal |
| DE4023282A1 (en) * | 1990-07-21 | 1992-01-23 | Stocko Metallwarenfab Henkels | Bush with electrical connections - has blade contacts that receive number of signal carrying wires |
| JP2006004733A (en) * | 2004-06-17 | 2006-01-05 | Yazaki Corp | Terminal connecting structure using bolt, and electric junction box provided with it |
| CN203192955U (en) * | 2013-04-25 | 2013-09-11 | 王方玉 | Piercing connector |
| CN203774486U (en) * | 2014-03-05 | 2014-08-13 | 宁波奉金电力金具有限公司 | Insulated wire puncture clamp |
| CN203883137U (en) * | 2014-06-13 | 2014-10-15 | 浙江科易电气有限公司 | Insulation piercing wire clamp convenient to install |
| CN205790647U (en) * | 2016-05-19 | 2016-12-07 | 浙江诚琳电力科技有限公司 | A kind of insulation puncture line clamping with temperature rise alarm function |
| CN207282735U (en) * | 2017-10-21 | 2018-04-27 | 南京聚联输变电安装有限责任公司 | A kind of cable insulation penetrating cable clamp |
| CN211556185U (en) * | 2020-03-19 | 2020-09-22 | 左易电力设备有限公司 | Puncture wire clamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114336098A (en) | 2022-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203192955U (en) | Piercing connector | |
| CN204696263U (en) | T connects tee connector | |
| CN206301963U (en) | A kind of and ditch wire barrel | |
| CN201655985U (en) | Thrusting earthing clamp | |
| CN114336098B (en) | Copper-aluminum transition junction box of switch before table | |
| CN202363601U (en) | Bidirectional spinning electric connector | |
| CN204720567U (en) | Tee connector | |
| CN201233972Y (en) | Multifunctional connecting plug | |
| CN2574273Y (en) | Fireproof cable connecting device | |
| CN105490122A (en) | Screen-top miniature bus bridging-connection cable | |
| CN210443671U (en) | Aluminum alloy core lightning protection down-leading cable branch connecting pipe for wind power blade | |
| CN204905802U (en) | Cable connection structure that can set up in open | |
| CN211829249U (en) | Multifunctional drainage grounding device | |
| CN211507941U (en) | Firm type H molded lines presss from both sides | |
| CN210468161U (en) | Binding clip for power equipment | |
| CN204088982U (en) | A kind of ground protection pincers | |
| CN216750329U (en) | Copper-aluminum transition junction box of meter front switch | |
| CN217848875U (en) | Six-incoming-wire cable grounding box | |
| CN111817108A (en) | Manufacturing method of plug-in type cable joint distribution transformer test wiring terminal device | |
| CN108270089A (en) | Simple cable insulating puncturing line apparatus and clamp method | |
| CN201853817U (en) | Wire clamp for power distribution equipment | |
| CN205752616U (en) | Multiple access formula connecting terminal apparatus | |
| CN214378875U (en) | Lightning protection type puncture wire clamp | |
| CN218958023U (en) | Quick connector for conducting wire | |
| CN108551000A (en) | With with the matching used water proof equipment binding clip of fuse switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |