CN102347566A - Leakage protection plug - Google Patents
Leakage protection plug Download PDFInfo
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- CN102347566A CN102347566A CN2011101738974A CN201110173897A CN102347566A CN 102347566 A CN102347566 A CN 102347566A CN 2011101738974 A CN2011101738974 A CN 2011101738974A CN 201110173897 A CN201110173897 A CN 201110173897A CN 102347566 A CN102347566 A CN 102347566A
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- fixed contact
- rotating mechanism
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Abstract
The invention discloses a leakage protection plug which comprises a shell, wherein the shell internally provided with a moveable contact, a stationary contact, an action mechanism and a control circuit board; the moveable contact and the stationary contact are respectively connected with a power supply and a load; the action mechanism comprises a rotary mechanism and an electromagnetism device; the rotary mechanism is provided with a reset key; a push rod is arranged below the lower part of the key; the reset key is downwardly pressed to push the push rod to support against the rotary mechanism; the moveable contact is arranged on the rotary mechanism, and the stationary contact is arranged corresponding to the moveable contact; the electromagnetism device comprises a magnetic coil, a pole piece, an ejector rod penetrating through the pole piece and an iron core fixed on the ejector rod; the ejector rod is forwardly acted by a suction effect generated by the iron core and the pole piece under the condition that the electromagnetism device is electrified to forwardly push the rotary mechanism; the rotary mechanism is provided with an elastic device which is used for promoting the rotary mechanism to rotate toward the ejector rod; and after the force of leading the ejector rod to push the rotary mechanism overcomes the restoring force of the elastic device, the moveable contact and the stationary contact are contacted and conducted. The leakage protection plug has simple trip form and is convenient for manufacturing.
Description
Technical field
The present invention relates to a kind of leakage protecting plug.
Background technology
The tradition leakage protecting plug comprises housing, and housing is provided with the conductive plug with the internal circuit conducting, is provided with wiring board, upper contact, lower contact and trip gear in the housing.But the trip gear structure of traditional leakage protecting plug is comparatively complicated, and it is extremely many to relate to parts, and manufacturing cost is higher.
Summary of the invention
Technical problem to be solved by this invention provides simple, the easily manufactured leakage protecting plug of a kind of form of threading off.
For this reason; Leakage protecting plug provided by the invention comprises housing; Be provided with moving contact in the housing; Fixed contact; Actuating mechanism and control circuit wiring board; Moving contact; Fixed contact connects power supply and load respectively; Actuating mechanism comprises rotating mechanism and calutron; Rotating mechanism disposes reset key; The reset key below is provided with push rod; Reset key presses down the back and promotes push rod ejection rotating mechanism; Moving contact is arranged on the rotating mechanism; Fixed contact is corresponding to the moving contact setting; Calutron comprises magnetic coil; Pole shoe; Pass the push rod of pole shoe and be fixed on the iron core on the push rod; Push rod is subjected to suction that iron core and pole shoe produce ejection rotating mechanism forward under the calutron "on" position; Rotating mechanism disposes and impels its elastic device that rotates to push rod, and the restoring force late contact of making every effort to overcome the clothes elastic device of push rod ejection rotating mechanism contacts with fixed contact and conducting.
Leakage protecting plug provided by the invention adopts the actuating mechanism that is made up of rotating mechanism and calutron; The magnetic field force that calutron wherein utilizes coil to produce; Directly be used for the locking of the closing of contact; Make leakage protecting plug produce output current; When latching force disappears; Utilize shell fragment to reset the contact is broken off; The output of earth leakage protective device no current; The control mode that this contact opens and closes is very sensitive; And the parts that structure relates to are less; Simple in structure and be easy to processing, make its manufacturing cost, material cost lower, help improving its market competitiveness of product.
Description of drawings
Fig. 1 is the upper shell of leakage protecting plug provided by the invention and the structural representation of lower house split.
Fig. 2 is the perspective view of the actuating mechanism of the leakage protecting plug among Fig. 1.
Fig. 3 is the one-piece parts split structural representation of the leakage protecting plug among Fig. 1.
Fig. 4 is the structure cross-sectional schematic of leakage protecting plug provided by the invention under off-position.
Fig. 5 is the structure cross-sectional schematic of leakage protecting plug provided by the invention under "on" position.
Fig. 6 is the calutron structural representation of leakage protecting plug provided by the invention
Embodiment
Like Fig. 1; Fig. 2; Fig. 3; Fig. 4; Fig. 5; Shown in Figure 6; Leakage protecting plug provided by the invention; Comprise housing; Housing is by upper shell 12; Lower house 13 is formed with bonnet 11; And have one group from lower house 13 stretch out charged; The power plug 15 of neutrality and ground connection; Be used for injecting main power socket; Bonnet 11 comprises an opening in its back-end; To allow load power source line 16 to insert; The latter is connected in the load such as electrical equipment at its far-end; Be provided with moving contact 21a in the housing; Fixed contact 23a; Actuating mechanism and control circuit wiring board 51; Electronic control circuit plate 51 is used to detect the appearance of a certain fault; Such as the earth fault that appears at load place; Moving contact 21a; Fixed contact 23a connects power supply and load respectively; Moving contact 21a in the present embodiment; That fixed contact 23a is electrically connected in respectively is charged/charged/neutral cable of neutral power plug 15 and power line; And in the charged/neutral circuit of load, play the effect of an on/off switch; Actuating mechanism comprises rotating mechanism and calutron; There are two kinds of off-positions in calutron; A kind of is that moving contact 21a contacts with fixed contact 23a disconnection; Another kind is by 51 controls of electronic control circuit plate calutron to be cut off the power supply after detecting fault; Rotating mechanism disposes reset key 17; Reset key 17 belows are provided with push rod 30; Reset key 17 presses down the back and promotes push rod 30 ejection rotating mechanisms; Moving contact 21a is arranged on the rotating mechanism; Fixed contact 21a is provided with 23a corresponding to moving contact; Calutron comprises magnetic coil 26e; Pole shoe 26d; Pass the push rod 26f of pole shoe 26d and be fixed on the iron core 26a on the push rod 26f; Push rod 26f is subjected to suction that iron core 26a and pole shoe 26d produce ejection rotating mechanism forward under the calutron "on" position; Rotating mechanism disposes and impels its elastic device that rotates to push rod 26f, and locking moving contact 21a contacts with the closure of fixed contact 23a behind the restoring force of making every effort to overcome the clothes elastic device of push rod 26f ejection rotating mechanism.
Like Fig. 2; Fig. 3; Fig. 4; Shown in Figure 5; Rotating mechanism comprises moving contact support 21 in the above-described embodiments; Briquetting 28 and column spinner 24; The elastic device of rotating mechanism configuration is a shell fragment 22; Moving contact 21a is arranged on the moving contact support 21; Be provided with main support 23 in the housing; Said fixed contact 23a is arranged on the main support 23; Be provided with groove 22a in the middle of the shell fragment 22; Shell fragment 22 1 ends are connected with moving contact support 21; The other end is connected with main support 23; Briquetting 28 tops are provided with and push away fork 28a; Push away the groove 22a that fork 28a passes shell fragment 22; The bottom of briquetting 28 is provided with swivel bearing spare 28b, and swivel bearing spare 28b rotational support is on the main support 23 of housing, and column spinner 24 rotating supports are on the main support 23 of housing; Column spinner 24 is arranged at shell fragment 22 tops; The ejection part 24a of column spinner 24 1 ends relies on push rod 26f, and the pressing down section 24b aligned beneath of column spinner 24 other ends is also being pressed shell fragment 22, and reset key 17 presses down the pressing down section 24b that rear push-rod 30 ejections push away fork 28a and column spinner 24.At this, leakage protecting plug provided by the invention adopts and rotates simultaneously and out-of-alignment briquetting 28 and column spinner 24, the version that is different from the market fully to be adopted.
Like Fig. 2, Fig. 3, Fig. 4, Fig. 5, shown in Figure 6; Calutron also comprises armature 26b and yoke 26c in the foregoing description; Yoke 26c surrounds magnetic coil 26e, push rod 26f and iron core 26a; Armature 26b is socketed on the rear end of iron core 26a; The width of armature 26b is greater than the width of yoke 26c, and armature 26b is stuck in yoke 26c back.
Like Fig. 1, Fig. 2, shown in Figure 3; Rotating mechanism and calutron all are arranged on the main support 23; Push rod 26f passes main support 23 and aims at rotating mechanism; Main support 23 can be the part of housing; Because main support 23 is not easy to the injection moulding of housing one; Therefore adopt in the present embodiment and divide body structure; Iron core 26a disposes the elastic recovery device that impels it to move to pole shoe 26d; This elastic recovery device is that two ends connect projection 23d and the extension spring 29 of armature 26b on the main support 23, and the elastic force of shell fragment 22 is greater than the elastic-restoring force of extension spring 29.
Like Fig. 2, Fig. 3, shown in Figure 4; Main support 23 is provided with rotational fixation device 25; The bottom of briquetting 28 is provided with the interior rotating support that forms of draw-in groove 25a that swivel bearing spare 28b snaps in rotational fixation device 25, and the through hole 25b that the projection 24c at column spinner 24 two ends inserts rotational fixation device 25 forms rotating support.At this, rotational fixation device 25 is the part of housing main support 23, has adopted the structure with 23 splits of housing main support for ease of injection moulding.
Like Fig. 2, shown in Figure 4; Main support 23 is provided with rubber-like fixed contact support 23b in the above-described embodiments; Fixed contact 23a is arranged at fixed contact support 23b; Be provided with the low level area 23c that is lower than the adjacent position over against briquetting 28 bottoms on the main support 23, briquetting 28 receives push rod 30 ejections and fixed contact support 23b is pressed in the 23c of low level area its underpart, back on earth.This structure make reset key 17 press down push rod 30 and do not reset before moving contact 21a can't contact with fixed contact 23a; This moment, fixed contact support 23b was depressed in the 23c of low level area by briquetting 28; Impel fixed contact 23a to contact with the moving contact 21a that is deflected; After having only reset key 17 to reset together with push rod 30; Briquetting 28 just can rise and remove the pressure to fixed contact support 23b; Impel fixed contact support 23b resilience, fixed contact 23a is contacted with the moving contact 21a that is deflected locking.
Like Fig. 1, Fig. 4, shown in Figure 5, the reset key 17 of leakage protecting plug is arranged on the upper shell 12 with test button 18 in the above-described embodiments; Reset key 17 is the RESET button, and reset key 17 disposes the first back-moving spring 17a; Test button 18 is the TEST button; Test button 18 disposes the second back-moving spring 18a; Electronic control circuit plate 51 is in reset key 17 and test button 18 belows, and the push rod 30 of reset key 17 passes electronic control circuit plate 51, directly acts on column spinner 24 and briquetting 28;
Describe the working method of leakage protecting plug provided by the invention below in detail:
As shown in Figure 4 under initial or tripped condition; Column spinner 24 is under the resilience force effect of shell fragment 22; Rest in the front end of calutron, and moving contact 21a and the fixed contact 23a on the main support 23 on the moving contact support 21 of this moment are in separated position, thereby power supply and load are broken off.
There is not fault or after it was excluded, electronic control circuit plate 51 was switched on to coil 26e immediately in the earth leakage protective device 1 in load place.At this moment in the time of can pressing reset key 17 by the user, act on pushing away of column spinner 24 and briquetting 28 simultaneously and pitch 28a, and make independent separately rotating.When column spinner 24 rotates, shell fragment 22 is deformed.The moving contact support 21 that be connected with shell fragment 22 this moment also rotates and rotates.
When column spinner 24 rotates, throw off ejection, and magnetic field force and extension spring 29 pulling force that this moment, calutron produced make simultaneously iron core 26a move to pole shoe 26d direction, and then contact and adhesive with pole shoe 26d to push rod 26f.In iron core 26a and the process that pole shoe 26d contacts; Iron core 26a produces and promotes force pushing mandril 26f; Under the effect of powerful magnetic field force; The resilience force of opposing shell fragment 22 and through push rod 26f locking column spinner 24, make moving contact support 21 be fixed on moving contact 21a when contacting with fixed contact 23a the position that should be in.Briquetting 28 is under the effect of reset key 17 simultaneously, and compressing fixed contact support 23b moves down it a little; This moment, the moving contact 21a on the moving contact support 21 did not also contact with fixed contact 23a on the fixed contact support 23b, and electric current is not switched on.
After reset key 17 was released, reset key 17 automatically reset under its back-moving spring 17a effect as shown in Figure 5, fixed contact support 23b upwards resilience automatically; Moving contact 21a on the moving contact support 21 and the fixed contact 23a on the fixed contact support 23b contact at this moment, and the two all is switched on the charged and neutral circuit of load this moment
As shown in Figure 4, in a single day when pressing test button 18 or detecting a certain fault, electronic control circuit plate 51 cuts off the power supply to coil 26e immediately, thereby calutron can not be operated.In case coil 26e outage, the magnetic field force forfeiture, and the pulling force of extension spring 29 can not support the resilience force of shell fragment 22 separately, and this moment, shell fragment 22 resiled, and shell fragment 22 promotes the front end that column spinner 24 relies on calutron, and drive contact holder 21 rotates up mobile.In column spinner 24 rotary courses, through push rod 26f iron core 26a pole shoe 26d is divided and open.So leakage protecting plug turns back to off-state, wherein charged the two all is disconnected and load and power supply disconnection with neutral circuit.
Claims (7)
1. leakage protecting plug; Comprise housing; Be provided with moving contact (21a) in the housing; Fixed contact (23a); Actuating mechanism and control circuit wiring board (51); Moving contact (21a); Fixed contact (23a) connects power supply and load respectively; It is characterized in that: said actuating mechanism comprises rotating mechanism and calutron; Said rotating mechanism disposes reset key (17); Reset key (17) below is provided with push rod (30); Reset key (17) presses down the back and promotes push rod (30) ejection rotating mechanism; Said moving contact (21a) is arranged on the rotating mechanism; Fixed contact (23a) is provided with corresponding to moving contact (21a); Calutron comprises magnetic coil (26e); Pole shoe (26d); Pass the push rod (26f) of pole shoe (26d) and be fixed on the iron core (26a) on the push rod (26f); Push rod (26f) is subjected to suction that iron core (26a) and pole shoe (26d) produce ejection rotating mechanism forward under the calutron "on" position; Rotating mechanism disposes and impels its elastic device that rotates to push rod (26f), locks moving contact (21a) behind the restoring force of making every effort to overcome the clothes elastic device of said push rod (26f) ejection rotating mechanism and contacts with the closure of fixed contact (23a).
2. leakage protecting plug according to claim 1; It is characterized in that: said rotating mechanism comprises moving contact support (21), briquetting (28) and column spinner (24); The elastic device of said rotating mechanism configuration is shell fragment (22); Said movable contact (21a) is arranged on the moving contact support (21); Be provided with main support (23) in the housing; Said stationary contact (23a) is arranged on the main support (23); Be provided with groove (22a) in the middle of the said shell fragment (22); Said shell fragment (22) one ends are connected with moving contact support (21); The other end is connected with main support (23); Said briquetting (28) top is provided with and pushes away fork (28a); Push away the groove (22a) that fork (28a) passes shell fragment (22); The bottom of said briquetting (28) is provided with swivel bearing spare (28b); Swivel bearing spare (28b) rotational support is on the main support (23) of housing; Said column spinner (24) rotating support is on the main support (23) of housing; Column spinner (24) is arranged at shell fragment (22) top; The ejection part (24a) of column spinner (24) one ends relies on push rod (26f); Pressing down section (24b) the aligned beneath shell fragment (22) of column spinner (24) other end, said reset key (17) press down the pressing down section (24b) that rear push-rod (30) ejection pushes away fork (28a) and column spinner (24).
3. leakage protecting plug according to claim 1 and 2; It is characterized in that: said calutron also comprises armature (26b) and yoke (26c); Yoke (26c) surrounds magnetic coil (26e), push rod (26f) and iron core (26a); Said armature (26b) is socketed on the rear end of iron core (26a); The width of armature (26b) is greater than the width of yoke (26c), and armature (26b) is stuck in yoke (26c) back.
4. leakage protecting plug according to claim 2; It is characterized in that: said rotating mechanism and calutron all are arranged on the main support (23); Said push rod (26f) passes main support (23) and aims at rotating mechanism; Said iron core (26a) disposes and impels it to the mobile elastic recovery device of pole shoe (26d); This elastic recovery device is that two ends connect projection () and the extension spring (29) of armature (26b) on the main supports (23), and the elastic force of said shell fragment (22) is greater than the elastic-restoring force of extension spring (29).
5. according to claim 2 or 4 described leakage protecting plugs; It is characterized in that: said main support (23) is provided with rotational fixation device (25); The swivel bearing spare (28b) that the bottom of said briquetting (28) is provided with snaps in the interior rotating support that forms of draw-in groove (25a) of rotational fixation device (25), and the projection (24c) at said column spinner (24) two ends inserts the interior rotating support that forms of through hole (25b) of rotational fixation device (25).
6. according to claim 2 or 4 described leakage protecting plugs; It is characterized in that: said main support (23) is provided with rubber-like fixed contact support (23b); Fixed contact (23a) is arranged on the fixed contact support (23b); Main support (23) is gone up and is provided with the low level area (23c) that is lower than the adjacent position over against briquetting (28) bottom, and briquetting (28) receives push rod (30) ejection and fixed contact support (23b) is pressed in the low level area (23c) its underpart, back on earth.
7. leakage protecting plug according to claim 5; It is characterized in that: said main support (23) is provided with rubber-like fixed contact support (23b); Fixed contact (23a) is arranged on the fixed contact support (23b); Main support (23) is gone up and is provided with the low level area (23c) that is lower than the adjacent position over against briquetting (28) bottom, and briquetting (28) receives push rod (30) ejection and fixed contact support (23b) is pressed in the low level area (23c) its underpart, back on earth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101738974A CN102347566A (en) | 2011-06-24 | 2011-06-24 | Leakage protection plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101738974A CN102347566A (en) | 2011-06-24 | 2011-06-24 | Leakage protection plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102347566A true CN102347566A (en) | 2012-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101738974A Pending CN102347566A (en) | 2011-06-24 | 2011-06-24 | Leakage protection plug |
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|---|---|
| CN (1) | CN102347566A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104143736A (en) * | 2014-07-15 | 2014-11-12 | 东莞市永晟电线有限公司 | Electric leakage protection plug |
| CN104466496A (en) * | 2014-12-24 | 2015-03-25 | 常熟市斯佳登电器有限公司 | Anti-creeping power plug |
| CN104466554A (en) * | 2014-12-24 | 2015-03-25 | 常熟市斯佳登电器有限公司 | Leakage protection plug |
| CN107644790A (en) * | 2017-10-24 | 2018-01-30 | 余姚市嘉荣电子电器有限公司 | A kind of earth leakage protective device |
| CN108257830A (en) * | 2018-03-21 | 2018-07-06 | 浙江中讯电子有限公司 | A kind of earth leakage protective device |
| CN109119299A (en) * | 2018-09-19 | 2019-01-01 | 余姚市嘉荣电子电器有限公司 | A kind of earth leakage protective device |
| CN111564736A (en) * | 2020-06-12 | 2020-08-21 | 佛山市顺德区澳骏电子科技有限公司 | Novel leakage protection plug |
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| US5305173A (en) * | 1991-03-04 | 1994-04-19 | Hosiden Corporation | Electrical connector with breaking current for leak |
| CN2932735Y (en) * | 2006-07-25 | 2007-08-08 | 常州雷利电器有限公司 | Impact-type leakage protected plug |
| CN201185279Y (en) * | 2008-03-06 | 2009-01-21 | 张克清 | Earth leakage protection plug |
| CN102097719A (en) * | 2009-12-11 | 2011-06-15 | 唐亚兵 | Socket-type leakage protective device with multi-protection functions |
| CN202076628U (en) * | 2011-06-24 | 2011-12-14 | 浙江中讯电子有限公司 | Leakage protection plug |
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2011
- 2011-06-24 CN CN2011101738974A patent/CN102347566A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5305173A (en) * | 1991-03-04 | 1994-04-19 | Hosiden Corporation | Electrical connector with breaking current for leak |
| CN2932735Y (en) * | 2006-07-25 | 2007-08-08 | 常州雷利电器有限公司 | Impact-type leakage protected plug |
| CN201185279Y (en) * | 2008-03-06 | 2009-01-21 | 张克清 | Earth leakage protection plug |
| CN102097719A (en) * | 2009-12-11 | 2011-06-15 | 唐亚兵 | Socket-type leakage protective device with multi-protection functions |
| CN202076628U (en) * | 2011-06-24 | 2011-12-14 | 浙江中讯电子有限公司 | Leakage protection plug |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104143736A (en) * | 2014-07-15 | 2014-11-12 | 东莞市永晟电线有限公司 | Electric leakage protection plug |
| CN104143736B (en) * | 2014-07-15 | 2017-05-24 | 东莞市永晟电线科技股份有限公司 | Electric leakage protection plug |
| CN104466496A (en) * | 2014-12-24 | 2015-03-25 | 常熟市斯佳登电器有限公司 | Anti-creeping power plug |
| CN104466554A (en) * | 2014-12-24 | 2015-03-25 | 常熟市斯佳登电器有限公司 | Leakage protection plug |
| CN107644790A (en) * | 2017-10-24 | 2018-01-30 | 余姚市嘉荣电子电器有限公司 | A kind of earth leakage protective device |
| CN107644790B (en) * | 2017-10-24 | 2020-08-07 | 余姚市嘉荣电子电器有限公司 | Leakage protector |
| CN108257830A (en) * | 2018-03-21 | 2018-07-06 | 浙江中讯电子有限公司 | A kind of earth leakage protective device |
| CN108257830B (en) * | 2018-03-21 | 2024-03-01 | 浙江中讯电子有限公司 | Leakage protector |
| CN109119299A (en) * | 2018-09-19 | 2019-01-01 | 余姚市嘉荣电子电器有限公司 | A kind of earth leakage protective device |
| CN109119299B (en) * | 2018-09-19 | 2023-10-20 | 余姚市嘉荣电子电器有限公司 | Leakage protector |
| CN111564736A (en) * | 2020-06-12 | 2020-08-21 | 佛山市顺德区澳骏电子科技有限公司 | Novel leakage protection plug |
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Application publication date: 20120208 |