CN102790376A - Electric leakage, overload and short circuit protection module - Google Patents
Electric leakage, overload and short circuit protection module Download PDFInfo
- Publication number
- CN102790376A CN102790376A CN2011101333963A CN201110133396A CN102790376A CN 102790376 A CN102790376 A CN 102790376A CN 2011101333963 A CN2011101333963 A CN 2011101333963A CN 201110133396 A CN201110133396 A CN 201110133396A CN 102790376 A CN102790376 A CN 102790376A
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- contact
- electromagnet
- latch hook
- moving
- arm
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- 230000004888 barrier function Effects 0.000 claims description 9
- 238000000605 extraction Methods 0.000 claims description 7
- 230000003068 static effect Effects 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 6
- 239000003990 capacitor Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 230000003321 amplification Effects 0.000 claims description 3
- 239000000084 colloidal system Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims description 3
- 230000006837 decompression Effects 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract 1
- 210000002683 foot Anatomy 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000000368 destabilizing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Abstract
An electric leakage, overload and short circuit protection module with small volume, compact structure and low cost comprises an electromagnetic tripping switch and a control circuit, wherein the electromagnetic tripping switch is provided with a reset button with a pressing head exposing a casing, a double-movable-contact-head swing arm assembly, an electromagnet and a base board in the insulation casing sequentially from top to bottom. A light touch button parallel to the reset button is arranged at the top of the casing, and a double-fixed-contact contact bridge and a double-movable-contact-head row lead-out foot are respectively arranged on the base board on the front side and the back side of the electromagnet. The control circuit detects electric leakage, overload and short circuit signals and simultaneously controls disconnection of an L pole (fire wire) circuit and an N pole (zero wire) circuit, and the whole machine part is connected when the reset button is pressed.
Description
Technical field
The present invention relates to switch, particularly the electromagnetic trip switch.
Background technology
" new type electric leakageproof socket " its tripping mechanism, active and static contact, the electronic component of Chinese patents 200810105463.9,200810104187.4,200820779982.8 etc. all are welded in circuit board, produce time-consumingly, and production efficiency is low.ZN20081003252.1 disclosed " new type electric leakageproof socket " and CN200810003894.4 " a kind of electric lever type leakage preventing socket " and CN20081047047.5 " single magnet type electric leakage protection socket " complex structure; Used the big permanent magnet of destabilizing factor; Its tripping mechanism, active and static contact, electronic component are to be welded in circuit board equally, and manufacturing and authentication difficulty are big.Earth leakage circuit-breaker volume on the existing market is too big, cannot be plugged in pcb board, is not suitable for socket and plug, though existing many socket manufacturers always seem too greatly too stupid with the De Lixi earth leakage circuit-breaker removable socket of having packed into, price is high naturally.Wall type on the market " good security " electric leakage, overload, short-circuit protection socket, cost is high, and versatility is wideless.201110060762.7 patents that I declare also have blemish in an otherwise perfect thing.
Summary of the invention
In order to overcome the deficiency of prior art; The present invention provides a kind of and has that volume is little, simple and compact for structure, with low cost, drop-away time is less than 0.1S, can be widely used in electric leakage, overload, the short-circuit protection module of plug, wall socket, removable socket, low-voltage electrical apparatus etc.
The technical solution adopted for the present invention to solve the technical problems is: with control circuit and independently the electromagnetic trip switch be welded on a pcb board; Control circuit has comprised the detection of electrical leakage magnet ring, has had control IC, controllable silicon that amplification ratio reaches turn over function; In order to reduce power consumption and to insert current sampling resistor; Usefulness be the capacitance decompression halfwave rectifier, with the N utmost point (zero line) altogether; In order to accelerate the response time, electromagnetic trip switch TK coil is supplied power by the halfwave rectifier capacitor filtering.Described electromagnetic trip switch is an independent devices, controls the break-make of the L utmost point (live wire) and the N utmost point (zero line) circuit simultaneously, its pin all down, pcb board plug-in mounting mode is drawn.
Described electromagnetic trip switch comprises that head exposes from top to bottom sequence arrangement of the SR of case, two moving contact swing arm combination, electromagnet, substrate in the case; Be respectively that two fixed contact row combination, two moving contact are visitd the arm leading foot before and after the electromagnet on the substrate; For minification of the present invention; The top of case is provided with the contact button arranged side by side with SR; One end of contact button is electrically connected with two moving contact swing arm extraction poles, and the other end is gone into the case wall by the lead down and drawn, and is used as functional check button of the present invention.
Described pair of moving contact visitd the arm combination and moulded the both sides that colloid is connected in moving contact heat extraction riveting the T word by T; Stretch to parallel with the moving contact swing arm of the vertical bar of T word can be swung latch hook as lock bolt; Moving iron lock bolt 4-1 stretches into latch hook 3-2 and pins; Two moving contacts are visitd arm and are connected with elasticity copper bar rivet with two moving contacts row leading foots, also can be that the moving contact leading foot clamps extension spring with moving contact swing arm fork-shaped and is connected, and electrical connection is welded to connect with pigtail lines.
Described pair of fixed contact row combination is connected in the both sides of the word of falling T by the inverted T-shaped plastic body with fixed contact row, and that the vertical bar of T word is made is tabular-and be flash barrier, two pairs deciliters contact points are separated; Can dwindle like this two pairs of disjunctions simultaneously the contact distance and minification is declined arcing, flash barrier is done a U word shape notch near the electromagnet direction, opening is towards the electromagnet direction; The latch hook that suspension can freely swing by pin in the notch; The bottom of latch hook is inverted U-shaped shape, is stuck in the neck of electromagnet armature stretched head, and the inverse time needle force that latch hook receives an end to be fixed on the dialing spring on the flash barrier is at ordinary times pulled out electromagnet armature; Such structure purpose is to shorten the length and the response speed that improves electromagnet of electromagnet; The lock bolt of visiing arm combination interlock like this moment and two moving contacts is reset button down and is hooked by latch hook, promptly protects dynamic and static contact forever and closely contacts, and electromagnet energising pulling latch hook clockwise rotates; Latch hook hightails lock bolt, and throw off dynamic and static contact.
The invention has the beneficial effects as follows that volume is little, production technology is simple, low cost of manufacture, can be widely used in removable socket, plug and wall socket and other low-voltage electrical apparatus.
Description of drawings
Fig. 1-be the circuit diagram of the embodiment of the invention
Fig. 2--electromagnetic trip construction of switch sketch map of the present invention
Fig. 3-be the A-A cutaway view of Fig. 1
Embodiment
In conjunction with accompanying drawing is existing execution mode is stated in following:
With control circuit and independently the electromagnetic trip switch be welded on a pcb board; Control circuit has comprised detection of electrical leakage magnet ring H, has had control IC, controllable silicon Q1 that amplification ratio reaches turn over function among Fig. 1; Reduce cost with access current sampling resistor R0 replacement current transformer in order to reduce power consumption; Usefulness be capacitor C 1 buck diode D1, D2 halfwave rectifier, (D2 is LED, utilizes the reverse current of capacitor C 1 to light LED) and the N utmost point (zero line) are altogether; In order to accelerate the response time, electromagnetic trip switch TK coil is by diode D3 halfwave rectifier, capacitor C 2 filtering direct current supplys.Described electromagnetic trip switch is an independent devices, controls the break-make of the L utmost point (live wire) and the N utmost point (zero line) circuit simultaneously, its pin all down, pcb board plug-in mounting mode is drawn.
In Fig. 2, Fig. 3; Described electromagnetic trip switch comprises that head exposes from top to bottom sequence arrangement of the SR 2 of case 1, two moving contact swing arm combination 3, electromagnet 4, substrate 5 in the case 1; Electromagnet 4 front and back are respectively that two fixed contact row combination 6, two moving contact are visitd arm extraction pole 7 on the substrate 5; The top of case 1 is provided with the contact button 8 arranged side by side with SR 2; One end of contact button 8 is electrically connected with two moving contact extraction pole 7 one of them utmost point, and the lead 1-1 that the other end is gone into the case wall by down draws, as functional check button of the present invention.
The described pair of moving contact visitd arm combination 3 and moulded colloid 3-1 by T moving contact is arranged the both sides that the 3-2 rivet hot is connected in the T word; Stretch to parallel with moving contact copper bar 3-2 of the vertical bar of T word can be swung latch hook 9 as lock bolt 3-3; Two moving contacts are visitd arm combination 3 and are visitd arm leading foot 7 usefulness elasticity copper bar 3-4 rivets with pair moving contacts and be connected; Also can be that moving contact is visitd arm leading foot 7 and moving contact row 3-2 fork-shaped and clamped extension spring and is connected, electrical connection be welded with pigtail lines.
Two fixed contacts row combination 6 is arranged the both sides that 6-2 is connected in the word of falling T by inverted T-shaped plastic body 6-1 with fixed contact.
That the vertical bar of T word is is tabular-and be flash barrier 6-3, two couples of moving contact 3-2-1, fixed contact 6-2-1 are separated, flash barrier 6-3 is the U word shape notch 6-4 of an opening towards electromagnet 4 near electromagnet 4 directions; The latch hook 6-6 that suspension can freely swing by pin 6-5 among the notch 6-4; The bottom of latch hook 6-6 is inverted U-shaped shape, is stuck in the neck of electromagnet armature stretched head 4-1, and the counter-clockwise active force that latch hook 6-6 receives an end to be fixed on the dialing spring 6-6 on the flash barrier 6-3 when flat is pulled out electromagnet armature; This structure can shorten the size of electromagnet; The lock bolt 3-3 that visits arm combination 3 interlocks like this moment and the two moving contacts button 2 that is reset is depressed and is hooked by latch hook 9, promptly protects dynamic and static contact forever closely to contact, and electromagnet 4 energising pulling latch hooks 9 clockwise rotate; Latch hook 9 breaks away from lock bolt 3-3, and moving contact 3-2-1, fixed contact 6-2-1 throw off.
Claims (4)
1. an electric leakage, overload, short-circuit protection module; On pcb board, installed and comprised: zero sequence current mutual inductor H, had amplification ratio than the IC of turn over function, controllable silicon, self power supply circuits and electromagnetic trip switch; It is characterized in that described control circuit self power supply circuits are in order to reduce power consumption and to insert current sampling resistor; Usefulness be the capacitance decompression halfwave rectifier, with the N utmost point (zero line) altogether; In order to accelerate the response time, electromagnetic trip switch TK coil is supplied power by the halfwave rectifier capacitor filtering.Described electromagnetic trip switch is an independent devices, controls the break-make of the L utmost point (live wire) and the N utmost point (zero line) circuit simultaneously, its pin all down, pcb board plug-in mounting mode is drawn.
2. a kind of electric leakage according to claim 1, overload, the wherein said electromagnetic trip switch of circuit protection module is characterized in that comprising that head exposes from top to bottom sequence arrangement of the SR 2 of case, two moving contact swing arm combination, electromagnet 4, substrate 5 in the case 1; Electromagnet 4 front and back are respectively that two fixed contact row combination, two moving contact are visitd the arm extraction pole on the substrate; The top of case is provided with the contact button arranged side by side with SR; One end of contact button is electrically connected with two moving contact swing arm extraction poles, and the other end is gone into the case wall by the lead down and drawn.
3. electromagnetic trip switch according to claim 2 is characterized in that described pair of moving contact visit arm combination and mould the both sides that colloid is connected in moving contact heat extraction riveting the T word by T; Stretch to parallel with the moving contact swing arm of the vertical bar of T word can be swung latch hook as lock bolt; Moving iron lock bolt 4-1 stretches into latch hook 3-2 and pins; Two moving contacts are visitd arm and are visitd the arm leading foot with two moving contacts and be connected with elasticity copper bar rivet; Also can be that moving contact is visitd the arm leading foot and clamped extension spring with moving contact swing arm fork-shaped and be connected, be electrically connected to connect with pigtail lines.
4. electromagnetic trip switch according to claim 2 is characterized in that described pair of fixed contact row combination is connected in the both sides of the word of falling T by the inverted T-shaped plastic body with fixed contact row, that the vertical bar of T word is made is tabular-and be flash barrier, two pairs deciliters contact points are separated; Flash barrier is done the U word shape notch of an opening towards electromagnet near the electromagnet direction; The latch hook that suspension can freely swing by pin in the notch, the bottom of latch hook is inverted U-shaped shape, is stuck in the neck of electromagnet armature stretched head; The inverse time needle force that latch hook receives an end to be fixed on the dialing spring on the flash barrier is at ordinary times pulled out electromagnet armature; The lock bolt of visiing arm combination interlock like this moment and two moving contacts is reset button down and is hooked by latch hook, promptly protects dynamic and static contact forever and closely contacts, and electromagnet energising pulling latch hook clockwise rotates; Latch hook breaks away from lock bolt, and throw off dynamic and static contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101333963A CN102790376A (en) | 2011-05-14 | 2011-05-14 | Electric leakage, overload and short circuit protection module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101333963A CN102790376A (en) | 2011-05-14 | 2011-05-14 | Electric leakage, overload and short circuit protection module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102790376A true CN102790376A (en) | 2012-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101333963A Pending CN102790376A (en) | 2011-05-14 | 2011-05-14 | Electric leakage, overload and short circuit protection module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102790376A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106068544A (en) * | 2014-02-19 | 2016-11-02 | 威能有限公司 | Safety switch |
| CN114640259A (en) * | 2022-03-22 | 2022-06-17 | 浙江诚富电器科技有限公司 | Power supply circuit and power supply mode of leakage protector with power factor less than 0.1PF |
-
2011
- 2011-05-14 CN CN2011101333963A patent/CN102790376A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106068544A (en) * | 2014-02-19 | 2016-11-02 | 威能有限公司 | Safety switch |
| CN106068544B (en) * | 2014-02-19 | 2018-01-16 | 威能有限公司 | Safety switch |
| CN114640259A (en) * | 2022-03-22 | 2022-06-17 | 浙江诚富电器科技有限公司 | Power supply circuit and power supply mode of leakage protector with power factor less than 0.1PF |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121121 |