CN2402040Y - Overcurrent protective box - Google Patents
Overcurrent protective box Download PDFInfo
- Publication number
- CN2402040Y CN2402040Y CN 99255562 CN99255562U CN2402040Y CN 2402040 Y CN2402040 Y CN 2402040Y CN 99255562 CN99255562 CN 99255562 CN 99255562 U CN99255562 U CN 99255562U CN 2402040 Y CN2402040 Y CN 2402040Y
- Authority
- CN
- China
- Prior art keywords
- overcurrent protection
- overcurrent protective
- line
- test
- line bank
- 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.)
- Expired - Fee Related
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- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model relates to an overcurrent protective box which is installed at line (testing) bank of internal lines Eight (or four) outer shells which can serve as ceramic overcurrent protective units are installed on one printed circuit board. The printed circuit board and a bracket of the overcurrent protective box are fixedly connected with screws and nuts. Therefore, the overcurrent protective box is assembled. The overcurrent protective box is inserted to the back side of the line (testing) bank of the internal lines from the back lateral side of the line (testing) bank of the internal lines. The utility model solves the problem that communication is interrupted when communication wiring equipment of the prior art is in multiple connection. The utility model has the advantages that operation is simplified, and circuits are guaranteed to be reliably switched on. The utility model is an overcurrent protective device which is used for communication wiring equipment.
Description
The utility model relates to a kind of communication with the overcurrent protection box that is installed in interior lines (test) line bank in the distribution plant.
Communication has two kinds of structures with distribution plant overvoltage protection and overcurrent protection design; be overvoltage overcurrent separate type protected location and the integrated protected location of overvoltage overcurrent; no matter but being separate type protected location or integrated protected location, its overcurrent protection unit all is contained in outside line (security personnel) above the line bank.The JPX122 distribution plant produced of Tianle Communication Equipment Co., Guangdong for example, the overcurrent protection part and the overvoltage protection of this product are partly separated, one of the every loop line in overcurrent protection unit is inserted in outside line (security personnel) line bank front, overvoltage protection unit overvoltage protector magazine of per five loop lines is contained in outside line (security personnel) the line bank back side, the contact of outside line (security personnel) line bank is a normally opened contact, when outside line (security personnel) line bank does not insert the overcurrent protection unit, circuit disconnects, when operation and maintenance, have and leak the possibility of inserting or mispluging, circuit can not reliably be connected; When carrying out multiple connection wire jumper operation when (jumper terminal connects the second wire jumper and removes article one wire jumper), the overcurrent protection unit must be pulled out and the communication disruption of current on-line operation can be made, influence communication quality.
The purpose of this utility model is that a kind of overcurrent protection box that is installed in interior lines (test) line bank will be provided, thereby the problem of interrupt communication when thoroughly solving the multiple connection wire jumper and simplifies the operation, and guarantees that circuit reliably connects.
The purpose of this utility model is achieved in that with shell be the overcurrent protection box that overcurrent protection unit, printed circuit board (PCB), overcurrent protection box support and the screw-nut of ceramic material is assembled into one of per eight loop line (or four loop lines); the trailing flank of (test) line bank is inserted into the back side of interior lines (test) line bank from interior lines; printed circuit board (PCB) is inserted between the line bank normally-closed contact of interior lines (test); the overcurrent protection units in series is advanced communication line, thereby realize the excess current protective function of distribution plant.
The utility model is because designed an overcurrent protection box that comprises eight (or four) overcurrent protection unit, and the trailing flank of (test) line bank is inserted into the back side of interior lines (test) line bank from interior lines, simple to operation, only need extract replacing when the overcurrent protection box has fault and get final product; The positive clamping terminal of interior lines (test) line bank and outside line (security personnel) line bank is not hidden by the overcurrent protection unit fully, thereby must extract the overcurrent protection unit when thoroughly having solved multiple connection and make the problem of communication disruption; Because overcurrent protection is box-packed on the line bank of interior lines (test); and the line number of interior lines (test) line bank be with the internal subscriber cable of access switch one to one; overcurrent protection box full configuration put whole circuits are effectively protected, thereby simplified operation.
The concrete structure of utility model is provided by following embodiment and accompanying drawing thereof.
Fig. 1: embodiment front view
Fig. 2: embodiment cut-away view
Describe details in detail below in conjunction with Fig. 1 and Fig. 2 according to the concrete structure that the utility model proposes.
The overcurrent protection unit 4 that is ceramic material with 8 shells is contained on the printed circuit board 2; with screw-nut 5 printed circuit board (PCB) 2 and overcurrent protection box support 3 are connected and fixed; be assembled into overcurrent protection box 6; the trailing flank of overcurrent protection box 6 (test) line bank 1 from interior lines is inserted into the back side of interior lines (test) line bank 1; printed circuit board (PCB) 2 is inserted between interior lines (test) the line bank normally-closed contact 7; make 4 series connection of overcurrent protection unit advance communication line, thereby realize the overcurrent protection function of distribution plant.
Claims (3)
1. overcurrent protection box that is installed in interior lines (test) line bank; comprise that shell can be the overcurrent protection unit of ceramic material, printed circuit board (PCB), overcurrent protection box support and screw-nut; it is characterized in that: described overcurrent protection box is to be contained on the printed circuit board by the overcurrent protection unit that 8 (or 4) shells can be ceramic material, with screw-nut printed circuit board (PCB) and overcurrent protection box support is connected and fixed to be assembled.
2. the trailing flank of overcurrent protection box as claimed in claim 1 (test) line bank from interior lines is inserted into the back side of interior lines (test) line bank.
3. when overcurrent protection box as claimed in claim 1 was in place at the back side of inserting interior lines (test) line bank, the over-current protecting element of 8 (or 4) overcurrent protection unit on it was connected in the every pair of circuit that line bank continued of interior lines (test).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99255562 CN2402040Y (en) | 1999-12-07 | 1999-12-07 | Overcurrent protective box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99255562 CN2402040Y (en) | 1999-12-07 | 1999-12-07 | Overcurrent protective box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2402040Y true CN2402040Y (en) | 2000-10-18 |
Family
ID=34038899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99255562 Expired - Fee Related CN2402040Y (en) | 1999-12-07 | 1999-12-07 | Overcurrent protective box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2402040Y (en) |
-
1999
- 1999-12-07 CN CN 99255562 patent/CN2402040Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |