CN216412985U - 4P terminal structure - Google Patents
4P terminal structure Download PDFInfo
- Publication number
- CN216412985U CN216412985U CN202123422942.3U CN202123422942U CN216412985U CN 216412985 U CN216412985 U CN 216412985U CN 202123422942 U CN202123422942 U CN 202123422942U CN 216412985 U CN216412985 U CN 216412985U
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- wire
- cover plate
- frame terminal
- bottom cover
- pressing frame
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Abstract
The utility model discloses a 4P terminal structure, wherein the top and the bottom of a shell are respectively opened, the shell is divided into four chambers from left to right through fixed partition plates, a wire pressing frame terminal copper block is respectively embedded in each chamber, a first through hole is respectively arranged on the front wall surface of each chamber, and a fixing screw is respectively screwed into the wire pressing frame terminal copper block from each first through hole and is used for fixedly connecting an external lead with the wire pressing frame terminal copper block; the bottom cover plate is further included, the rear portion of the bottom cover plate comprises four second through holes, each second through hole is opposite to each wire pressing frame terminal copper square in the vertical direction, and the insulating plate is arranged on the front portion of the bottom cover plate. The utility model is used as the input and output terminals of the DC power supply, and adopts the copper block of the pressing wire frame terminal to connect with the lead, thereby providing good electric contact. In addition, the bottom cover plate provides good insulation protection for the wire of the copper block of the numerical access pressing wire frame terminal in the longitudinal direction, and the wire is prevented from discharging other equipment metal parts in the case of large current.
Description
Technical Field
The utility model relates to a 4P terminal structure.
Background
The direct current circuit breaker is used for switching the operation mode of a direct current system or removing a fault. The protective circuit is used for overload and short-circuit protection of facilities and electricity of a direct current power distribution system, can be divided into four types of a single pole 1P, a two pole 2P, a three pole 3P and a four pole 4P according to a wiring terminal, and can be widely applied to industries such as electric power, post and telecommunications, traffic, industrial and mining enterprises and the like.
The existing four-pole 4P terminal adopts a male-female butt-joint plug-in type, and poor contact can be caused after long-term use. In addition, the conventional 4P terminal is mounted in a metal housing, and insulation failure is likely to occur.
Disclosure of Invention
The purpose of the utility model is as follows: in view of the above-mentioned prior art, a 4P terminal structure is proposed, which has better connectivity with the lead wire and good insulation with the external structure when used as the input and output terminals of the dc power supply.
The technical scheme is as follows: A4P terminal structure comprises a shell, wherein the top and the bottom of the shell are respectively opened, the shell is divided into four chambers from left to right through fixed partition plates, a wire pressing frame terminal copper block is embedded into each chamber, a first through hole is formed in the front wall surface of each chamber, and fixing screws are screwed into the wire pressing frame terminal copper blocks from the first through holes respectively and are used for fixedly connecting external leads with the wire pressing frame terminal copper blocks; the bottom cover plate is characterized by further comprising a bottom cover plate, the rear portion of the bottom cover plate comprises four second through holes, each second through hole is opposite to each wire pressing frame terminal copper square in the vertical direction, and an insulating plate is arranged on the front portion of the bottom cover plate.
Furthermore, the two sides of the shell are provided with ear plates with holes.
Has the advantages that: compared with the existing structure adopting a male-female butt-joint plug-in type structure, the 4P terminal structure adopts a copper block connecting wire of a wire pressing frame terminal, adopts a screw to directly fix the wire, and avoids poor contact caused by long-term use. In addition, when this 4P terminal structure is installed in other equipment, bottom apron provides good insulation protection for the wire of numerical value access wire frame terminal copper square in longitudinal, has increased dielectric strength, and the wire is to other equipment metal parts discharge when preventing the heavy current.
Drawings
Fig. 1 is a schematic perspective view of a 4P terminal according to the present invention;
fig. 2 is a schematic view of a split structure of the 4P terminal of the present invention;
fig. 3 is a schematic bottom view of the 4P terminal of the present invention.
Detailed Description
The utility model is further explained below with reference to the drawings.
As shown in fig. 1 to 3, a 4P terminal structure includes a housing 1, wherein the top and the bottom of the housing 1 are respectively open, and two sides of the housing 1 are provided with ear plates 101 with holes. Four cavities are formed in the shell 1 in a rightward mode through fixed partition plates, a wire pressing frame terminal copper block 2 is embedded into each cavity, a first through hole is formed in the front wall face of each cavity, and fixing screws 3 are screwed into the wire pressing frame terminal copper blocks 2 from the first through holes respectively and are used for fixedly connecting external wires with the wire pressing frame terminal copper blocks 2. The bottom cover plate 4 is covered at the bottom of the shell 1, the rear portion of the bottom cover plate 4 comprises four second through holes 401, each second through hole 401 is opposite to each wire pressing frame terminal copper square block 2 in the vertical direction, and the front portion of the bottom cover plate 4 is an insulating plate 402.
When the 4P terminal structure is installed in a dc fault location device, it can be fixed by lugs and bolts on both sides of the housing 1. The direct current power supply voltage sampling circuit is used as an input and output terminal of a direct current power supply, an external lead is connected into the wire pressing frame terminal copper block 2 from a second through hole 401 at the bottom and is reliably connected through a fixing screw 3, and the wire pressing frame terminal copper block 2 is connected to a circuit board and can realize voltage and leakage current sampling. The front portion of the bottom cover plate 4 provides good insulation protection for the wires by the insulation plate 402, which effectively prevents the wires at the junction from discharging into the metal housing of the dc fault location device.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (2)
1. The 4P terminal structure is characterized by comprising a shell (1), wherein the top and the bottom of the shell (1) are respectively opened, the shell (1) is internally divided into four chambers from left to right through fixed partition plates, a wire pressing frame terminal copper block (2) is respectively embedded into each chamber, a first through hole is respectively arranged on the front wall surface of each chamber, and fixing screws (3) are respectively screwed into the wire pressing frame terminal copper blocks (2) from the first through holes and are used for fixedly connecting external leads with the wire pressing frame terminal copper blocks (2); the novel insulating bottom cover plate is characterized by further comprising a bottom cover plate (4), the rear portion of the bottom cover plate (4) comprises four second through holes (401), each second through hole (401) is right opposite to each wire pressing frame terminal copper square block (2) in the vertical direction, and an insulating plate (402) is arranged in front of the bottom cover plate (4).
2. The 4P terminal structure according to claim 1, wherein the housing (1) is provided with perforated ear plates (101) at both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123422942.3U CN216412985U (en) | 2021-12-31 | 2021-12-31 | 4P terminal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123422942.3U CN216412985U (en) | 2021-12-31 | 2021-12-31 | 4P terminal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216412985U true CN216412985U (en) | 2022-04-29 |
Family
ID=81287180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123422942.3U Active CN216412985U (en) | 2021-12-31 | 2021-12-31 | 4P terminal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216412985U (en) |
-
2021
- 2021-12-31 CN CN202123422942.3U patent/CN216412985U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |