CN103414153A - Over/under voltage protector - Google Patents
Over/under voltage protector Download PDFInfo
- Publication number
- CN103414153A CN103414153A CN2013101551219A CN201310155121A CN103414153A CN 103414153 A CN103414153 A CN 103414153A CN 2013101551219 A CN2013101551219 A CN 2013101551219A CN 201310155121 A CN201310155121 A CN 201310155121A CN 103414153 A CN103414153 A CN 103414153A
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- CN
- China
- Prior art keywords
- binding post
- protector
- zero line
- circuit board
- line binding
- 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.)
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Abstract
The invention discloses an over/under voltage protector comprising a box body (1), a phase line binding post (4) and a circuit board member (3). The improvement points lie in that the box body (1) is provided with only one zero line binding post (2); the zero line binding post (2) is used for connection of a power grid zero line N with the circuit board member (3); the zero line binding post (2) and a phase line L supply power for the circuit board member (3); and the dimension of the zero line binding post (2) is smaller than the phase line binding post (4). Compared with the prior art, the over/under voltage protector is of simple structure and high safety, can be used for reducing the overall cost of the protector and improving the reliability of the protector to a large extent, and can be used in a large power distribution box to greatly reduce copper wire usage amount and an overall volume of the distribution box.
Description
Technical field
The present invention relates to a kind of circuit brake, particularly a kind of under-voltage protector of crossing.
Background technology
Current circuit brake; if single-phase, cross under-voltage protector; generally on box body, be provided with four binding posts; wherein two binding posts are respectively phase line and zero line input wires terminal; another two binding posts are respectively phase line and zero line output wiring terminal; these four binding posts are not only be used to carrying tens amperes of ampere load current even up to a hundred, and the input wires terminal also is connected with the protector circuit board component, for circuit board component provides power supply.
Above-mentioned protector is generally when protection load or circuit, only disconnect phase line protection, and continuous zero line, phase line arranges an input and an output is rational like this, and the zero line input is directly to use the current carrying conductor short circuit in protector inside with output, and binding post will meet the ability that can carry the nominal load current wire that connects, be designed with so following shortcoming: one, the zero line binding post connects nominal load for meeting, terminal sizes is larger, inner short circuit copper conductor is thicker, and for the assurance electrical safety, to leave enough electric clearances and creepage distance when design, make protector volume large (general width is 54 ㎜ or 45 ㎜), complex structure, increased the manufacturing cost of protector, its two, zero line binding post loaded current is larger, the outside copper conductor wire diameter connected is larger, number of terminals is many, inevitable accident rate is high, they are three years old, when if protector is installed in distribution box, must draw a large wire diameter copper conductor from distribution box zero line Input terminal block and be connected to the protector input, the protector output connects the zero terminal row that a large wire diameter wire to next stage protective device (being generally earth leakage protective device) connects again, the volume of protector own is larger in addition, when making distribution box, will inevitably cause the copper conductor waste, and the volume of distribution box is larger like this.
Therefore, a kind of simple in structure, fail safe is higher, and the under-voltage protector of crossing that can reduce largely the protector integrated cost and improve the protector reliability just is suggested.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of simple in structure, can reduce largely the protector integrated cost and improve the under-voltage protector of crossing of protector reliability.
The objective of the invention is to realize by following structure: comprise box body (1), phase terminal (4) and circuit board component (3), its improvement is: on box body (1), only be provided with a zero line binding post (2), this zero line binding post (2) is only for being connected electrical network zero line N with circuit board component (3), and with phase line L be circuit board component (3) power supply, the dimensions of described zero line binding post (2) is lower than phase terminal (4).
Compared with prior art; the present invention is simple in structure; fail safe is higher, can reduce largely the protector integrated cost and improve the protector reliability, is used in simultaneously in distribution box and can reduces largely the use amount of copper conductor and the volume of whole distribution box.
The accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Fig. 2 is the structural representation that Fig. 1 looks up.
Fig. 3 is the schematic diagram of the embodiment of the present invention 1 circuit.
Fig. 4 is the schematic diagram of the embodiment of the present invention 2 circuit.
Shown in figure: 1 is the zero line binding post, and 2 is box body, and 3 is circuit board component, and 4 is phase terminal.
In circuit diagram: N is zero line side, and L is the phase line end, and U is controller.
Embodiment
Embodiment 1: with reference to accompanying drawing 1～3, be the structural representation of the embodiment of the present invention 1, be the single-phase embodiment that crosses under-voltage protector; comprise box body 2 and circuit board component 3; on box body 1, be provided with altogether three binding posts, wherein 1 is zero line binding post 1, and its wiring ability meets 1.5 ㎜
2Wire, another two partner, and are phase terminal 4, its wiring ability can meet 35 ㎜
2Wire, at the circuit board component 3 of the direct connection protector of the inner zero line N binding post of protector, phase terminal 4 of the direct connection protector of phase line L end of circuit board component 3; The protector width is 27 ㎜, and when installation protector in distribution box, zero line binding post 1 connects in distribution box the zero terminal row that the input zero terminal is arranged or protector upper level protective device output connects.Protector is when work; only have phase terminal 4 carry load electric currents; and 1 of zero line binding post is for providing power supply with phase line for the controller U of circuit board component; so it is very little that zero line binding post 1 can design, as long as the controller U met for circuit board component 3 provides power supply (the general electric current that only needs tens milliamperes of carryings).
Embodiment 2: with reference to Fig. 4, be the schematic diagram of the embodiment of the present invention 3 circuit, for three-phase, cross the embodiment of under-voltage protector, on box body 2, be provided with altogether seven binding posts, wherein 1 is zero line binding post 1, and its wiring ability meets 1.5 ㎜
2Wire, other 6 form 3 pairs, are phase terminal 4, its wiring ability can meet 35 ㎜
2Wire, at the circuit board component 3 of the direct connection protector of the inner zero line binding post of protector, a phase of the direct connection protector of phase line end of circuit board component 3, or two-phase, or the three-phase phase line inputs or outputs binding post; The protector width is 108 ㎜, and when installation protector in distribution box, zero line binding post 1 connects in distribution box the zero terminal row that the input zero terminal is arranged or protector upper level protective device output connects.Protector is when work; only have phase terminal 4 carry load electric currents; and 1 of zero line binding post is for providing power supply with phase line for the controller U of circuit board component 3; so zero line binding post 1 is also programmable very little, as long as the controller U met for circuit board component 3 provides power supply (general needs carrying to be no more than the electric current of 100mA).
Claims (1)
1. cross under-voltage protector for one kind; comprise box body (1), phase terminal (4) and circuit board component (3); it is characterized in that: on box body (1), only be provided with a zero line binding post (2); this zero line binding post (2) is only for being connected electrical network zero line N with circuit board component (3); and with phase line L be circuit board component (3) power supply, the dimensions of described zero line binding post (2) is lower than phase terminal (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101551219A CN103414153A (en) | 2012-08-12 | 2013-04-30 | Over/under voltage protector |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210284254 CN102856889A (en) | 2012-08-12 | 2012-08-12 | Self-restoring type over/under-voltage protection device |
| CN201210284254.1 | 2012-08-12 | ||
| CN2013101551219A CN103414153A (en) | 2012-08-12 | 2013-04-30 | Over/under voltage protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103414153A true CN103414153A (en) | 2013-11-27 |
Family
ID=47403200
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210284254 Pending CN102856889A (en) | 2012-08-12 | 2012-08-12 | Self-restoring type over/under-voltage protection device |
| CN2013101551219A Pending CN103414153A (en) | 2012-08-12 | 2013-04-30 | Over/under voltage protector |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210284254 Pending CN102856889A (en) | 2012-08-12 | 2012-08-12 | Self-restoring type over/under-voltage protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN102856889A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107800112A (en) * | 2017-12-17 | 2018-03-13 | 成都育芽科技有限公司 | A kind of Self-recover overvoltage-undervoltage protector |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030086224A1 (en) * | 2001-11-07 | 2003-05-08 | Elms Robert Tracy | Circuit breaker for detecting an excessive voltage and tripping responsive thereto |
| CN2726195Y (en) * | 2004-09-10 | 2005-09-14 | 任耀光 | Three-phase electric machine switch apparatus with short phase and over voltage protecting function |
| CN201528185U (en) * | 2009-07-10 | 2010-07-14 | 深圳市常工电子计算机有限公司 | Malignant load intelligent recognizer |
-
2012
- 2012-08-12 CN CN 201210284254 patent/CN102856889A/en active Pending
-
2013
- 2013-04-30 CN CN2013101551219A patent/CN103414153A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030086224A1 (en) * | 2001-11-07 | 2003-05-08 | Elms Robert Tracy | Circuit breaker for detecting an excessive voltage and tripping responsive thereto |
| CN2726195Y (en) * | 2004-09-10 | 2005-09-14 | 任耀光 | Three-phase electric machine switch apparatus with short phase and over voltage protecting function |
| CN201528185U (en) * | 2009-07-10 | 2010-07-14 | 深圳市常工电子计算机有限公司 | Malignant load intelligent recognizer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102856889A (en) | 2013-01-02 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20131127 |