CN204424603U - Earth leakage protective socket - Google Patents
Earth leakage protective socket Download PDFInfo
- Publication number
- CN204424603U CN204424603U CN201520096621.4U CN201520096621U CN204424603U CN 204424603 U CN204424603 U CN 204424603U CN 201520096621 U CN201520096621 U CN 201520096621U CN 204424603 U CN204424603 U CN 204424603U
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- CN
- China
- Prior art keywords
- movable contact
- contact spring
- earth leakage
- leakage protective
- protective socket
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model provides a kind of earth leakage protective socket; comprise housing and be arranged at support, cartridge assemblies, resetting device and the test mechanism in described housing; described support is provided with a pair accessory power outlet sheet; described cartridge assemblies comprises circuit board and the trip gear be arranged on described circuit board and a pair elasticity movable contact spring; wherein; described elasticity movable contact spring is connected to socket input; and contact with described accessory power outlet sheet in normal operation, to form the electrical connection between socket input and output.More simple according to the earth leakage protective socket structure without load outputs of the present utility model, there will not be the defect that false wiring causes with electric fault, and easy to use and reliable.
Description
Technical field
The utility model relates to a kind of earth leakage protective socket (GFCI), particularly relates to a kind of earth leakage protective socket without load outputs.
Background technology
Figure 1 illustrates the surface structure of existing common earth leakage protective socket; it has input A, load outputs B and socket output C usually; input A is connected input power and output loading respectively with load outputs B, and socket output C is then socket sheet.In use, in order to prevent user error reverse wiring (namely mistakenly output is accessed power supply as input, cause earth leakage protective device to lose protective effect), need to carry out the design on complicated structure and circuit.
Utility model content
The purpose of this utility model is to provide a kind of earth leakage protective socket not having load outputs, thus simplifies internal structure and circuit design, improves the reliability of product.
For this reason; comprise housing according to a kind of earth leakage protective socket of the utility model design and be arranged at support, cartridge assemblies, resetting device and the test mechanism in described housing; described support is provided with a pair accessory power outlet sheet; described cartridge assemblies comprises circuit board and the trip gear be arranged on described circuit board and a pair elasticity movable contact spring; wherein; described elasticity movable contact spring is connected to socket input; and contact with described accessory power outlet sheet in normal operation, to form the electrical connection between socket input and output.
Owing to eliminating the design of load outputs; earth leakage protective socket of the present utility model is when wiring; would not cause and power line is linked into load end; the wrong reverse wiring phenomenon causing earth leakage protective socket not play a protective role; therefore the requirement of the design of internal structure and circuit just not demand fulfillment mistake reverse wiring function; thus simplify product, and performance is more reliable.
According to a kind of execution mode, the electromagnetic component that described trip gear comprises release, catch member and is associated, the snap close hole clipping that described catch member is passed for the return pin of described resetting device comprises the first hole clipping and the second hole clipping that are interconnected diametrically, and the size of wherein said second hole clipping is less than the size of described first hole clipping and matches with the diameter of described return pin.Like this, when return pin inserts snap close hole clipping, first enter the first hole clipping of large-size, then under the effect of electromagnetic component, enter the second hole clipping, because the size of the second hole clipping and the diameter of the reset tip match, the second hole clipping more reliably can block return pin.
According to a kind of execution mode, described circuit board is also provided with the auxiliary switch be made up of auxiliary movable contact spring and auxiliary static contact, described release is provided with impel described elasticity movable contact spring to contact with described accessory power outlet sheet carry arm, and to carry described in being arranged on below arm and the assisted Extraction arm be positioned at below described auxiliary movable contact spring.When release moves up, carry while arm makes elasticity movable contact spring contact with accessory power outlet sheet, assisted Extraction arm straps dynamic auxiliary movable contact spring moves up, and the moving contact on auxiliary movable contact spring contacts with the fixed contact on auxiliary static contact, realizes electric power connection.
According to a kind of execution mode, described elasticity movable contact spring inserts the magnetic ring component be arranged on described circuit board, and comprise live wire movable contact spring and zero line movable contact spring, wherein said live wire movable contact spring is provided with location hole to be inserted in the reference column in described magnetic ring component, described zero line movable contact spring is provided with opening, be provided with elastic contact chip in it in order to contact with the copper pin in described magnetic ring component, realize location and electrical connection.
According to a kind of execution mode, the lamp sheet light that the indicator light on circuit board sends being guided to described outside is also comprised in described housing, it is constructed to reduce gradually from described indicator light to described shell dimension, thus it is brighter to provide larger light transmittance to make indicator light be refracted to the light of receptacle face.
According to a kind of execution mode, also comprise grounding rack assembly in described housing, the part that described housing is extended at its two ends is provided with installation screw.By this way, mounting screw can enter to the installation screw on grounding rack assembly through car direct behind distribution box mounting bracket hole, thus can be fixed on distribution box support by earth leakage protective socket, does not need nut to be fixed.
Can be found out general introduction of the present utility model by above-mentioned; compared to existing earth leakage protective socket; more simple according to the earth leakage protective socket structure without load outputs of the present utility model, there will not be the defect that false wiring causes with electric fault, and easy to use and reliable.
Accompanying drawing explanation
More multiple features of the present utility model and advantage are by by understanding better below in conjunction with the further description of accompanying drawing to embodiment.The same or analogous parts of designated identical in accompanying drawing, wherein:
Fig. 1 is the three-dimensional appearance schematic diagram of existing earth leakage protective socket;
Fig. 2 is according to the three-dimensional appearance schematic diagram without the earth leakage protective socket of load outputs of the present utility model;
Fig. 3 is the schematic diagram being in off-state according to earth leakage protective socket of the present utility model;
Fig. 4 is the schematic diagram being in closure state according to earth leakage protective socket of the present utility model;
Fig. 5 is the perspective exploded view according to earth leakage protective socket of the present utility model.
Embodiment
In order to understand structure of the present utility model, function and effect better, the following preferred embodiment of existing utilization is also described in detail by reference to the accompanying drawings.Should be understood that, the embodiment that the structural design of example and following description the utility model combine is not intended to limit according to all embodiments of the present utility model.In addition, in specific descriptions below, the term of directivity, such as " on ", D score, "left", "right" etc. all use with reference to the direction that describes in accompanying drawing, the term of these directivity is only unrestricted for example.
First see Fig. 1 and composition graphs 5, the earth leakage protective socket according to a kind of preferred implementation of the utility model is shown.This socket comprises the housing be made up of upper cover 1 and base 2, and upper cover 1 is provided with socket aperture 104, supplies test button hole 102 and the reset button hole 103 of test button 5 and reset button 6 insertion, and for the indicator lamp hole 101 that lamp sheet 7 inserts.The cartridge assemblies being provided with support 4, grounding rack assembly 3 in housing and being arranged between support 4 and base 2.As can be seen from Fig. 1 and Fig. 2 relatively in; in appearance; earth leakage protective socket of the present utility model is only provided with input 8 and does not arrange output; and the installing hole on grounding rack assembly 3 is constructed to installation screw 301, thus socket of the present utility model directly can be installed and is fixed on distribution box support.
Below by the concrete structure described in detail further combined with Fig. 3 to Fig. 5 in housing and mode of operation.
In the embodiment as shown, cartridge assemblies comprises trip gear and a pair elasticity movable contact spring of circuit board 9 and upper installation thereof, this is input movable contact spring to elasticity movable contact spring, comprise live wire movable contact spring 17 and zero line movable contact spring 18, one end of elasticity movable contact spring is installed in magnetic ring component and is connected to circuit board, and the other end is respectively equipped with live wire moving contact 1701 and zero line moving contact 1801.Support 4 is provided with a pair accessory power outlet sheet 13,14, which is provided with the metal blade aimed at respective socket hole 104 on upper cover 1, as can be seen from Figure 5, the bottom of this metal blade is provided with the contact structure that can contact with zero line moving contact 1801 with live wire moving contact 1701.
Trip gear is arranged on the below of elasticity movable contact spring 17,18 and comprises release 19, catch member 20 and electromagnetic component.Release 19 is provided with the return pin pilot hole 1901 that the return pin 602 for resetting device is inserted and the snap close pilot hole 1902 inserted for catch member 20, and release both sides are respectively equipped with outward extendingly carries arm 1903.Wherein, in this embodiment, the hole clipping that catch member 20 is passed for return pin 602 comprises the first hole clipping 2002 and the second hole clipping 2001 be interconnected diametrically, and wherein the size of the second hole clipping 2001 is less than the size of the first hole clipping 2002 and matches with the diameter of return pin 602.
The electromagnetic component of trip gear can comprise trip line coil 21, dropout iron core 22 and dropout spring 23.Circuit board 9 is also provided with the auxiliary switch be made up of auxiliary movable contact spring 25 and auxiliary static contact 24, and wherein, auxiliary movable contact spring 25 and auxiliary static contact 24 insert auxiliary movable contact spring jack 2102 and auxiliary static contact jack 2101 that trip line coil 21 provides respectively.Correspondingly, in this execution mode illustrated, the carrying arm and can additionally be provided with assisted Extraction arm 1,904 1903 times of release 19, it is positioned at below auxiliary movable contact spring 25, contacts with auxiliary static contact 24 in order to impel auxiliary movable contact spring 25.
Resetting device and test mechanism can adopt existing structure, and its concrete structure repeats no more, but operating procedure can know understanding in the following description.In the execution mode illustrated in the drawings, also need some detailed structure is described.Relate in one aspect to the structural design inserted on the live wire movable contact spring 17 of magnetic ring component and zero line movable contact spring 18.See Fig. 5, magnetic ring component can comprise magnet ring lid 26, detect magnet ring 27 and magnet ring cover 28.Wherein, live wire movable contact spring 17 is provided with location hole 1702, and this location hole 1702 can be inserted in the reference column 2801 that magnet ring cover 28 is arranged.Meanwhile, zero line movable contact spring 18 is provided with opening, is provided with elastic contact chip 1802 in it, and this elastic contact chip can overlap with magnet ring the copper pin 2802 arranged on 28 and contact.Thus, the location of elasticity movable contact spring 17,18 can be realized further and be reliably electrically connected.On the other hand, in housing, also comprise the lamp sheet 7 light that the indicator light 10 on circuit board sends being guided to outside.As shown in Figure 5, lamp sheet 7 upper cover 1 be constructed to from indicator light 10 to housing is that size reduces gradually, and bottom large scale can make light transmittance better, thus the light that indicator light 10 is refracted to receptacle face is brighter.Lamp sheet 7 head can penetrate in the indicator lamp hole 101 of upper cover 1, and middle part also can be provided with small boss for being supported on support 4.
When the earth leakage protective socket shown in Fig. 3 is in off-state; reset button 6 is in the state of takeofing; and depart from catch member 20, the moving contact 1701,1801 of elasticity movable contact spring 17,18 and the contact 1301,1401 of accessory power outlet sheet 13,14 are in separated position.Composition graphs 5, after pressing reset button 6, return pin 602 inserts the return pin pilot hole 1901 on release 19 and the hole clipping in catch member 20 successively, now bayonet socket 601 is introduced in the first hole clipping 2002, then under dropout iron core 22 and dropout spring 23 active force, bayonet socket 601 continues to enter in the second less hole clipping 2001 of size, would not cause slide fastener phenomenon like this because of vibrating or pressing reset button.When discharging reset button 6, under the effect of back-moving spring 12, catch member 20 is pulled and up moves, thus also make the arm 1903 of carrying of release 19 be with dynamic elasticity movable contact spring 17,18 up to move, until elasticity movable contact spring contacts with the corresponding contacts of accessory power outlet sheet the electrical connection realizing power input and output, complete electric power to export, just charged in the socket aperture 104 of receptacle face.Now, because release 19 moves up, assisted Extraction arm 1904 is with dynamic auxiliary moving contact 25 to move up simultaneously, and the contact on it contacts with the fixed contact on auxiliary fixed contact 24, realizes connecting conducting.
Can also can be found out by Fig. 5, this earth leakage protective socket also can be provided with a test film 15 to form test mechanism between the below of such as accessory power outlet sheet 13,14 and test button 5, regular event with testing fixture by simulation earth leakage protective path.When press in test button 5 or socket there is the phenomenon of the failure such as electric leakage time, as shown in Figure 4, electric circuit inspection is to leakage current and produce triggering signal and make controlled silicon conducting, cause tripping coil to be energized, dropout iron core 22 starts action, pulls catch member 20 to throw off the bayonet socket 601 of reset button 6, release 19 falls, and elasticity movable contact spring 17,18 is at its own resilient moved downward, cause the contact of the contact on it and accessory power outlet sheet to be separated from each other, thus disconnect electric power connection.Now, due to the whereabouts of release 19, auxiliary movable contact spring 25 loses the support of assisted Extraction arm 1904, and the auxiliary static contact 24 connecting conducting is separated with auxiliary movable contact spring 25, furthermore achieved that earth leakage protective.
In addition, the anti-plug device 11 corresponding to socket aperture also can be installed between upper cover 1 and grounding rack assembly 3.Circuit board 9 also can be provided with location hole 901, and the return pin pilot hole 203 (Fig. 3, Fig. 4) base 2 protruding into enclosure interior can pass this location hole 901, and realizes the guiding of return pin head when return pin moves downward.The binding post 16 of input 8 is installed via the input wire hole 201 on base 2; trip bolt 29 screws in from the fastening screw nail 202 base 2, thus the earth leakage protective socket that the formation that is fastened together by the parts such as upper cover 1, support 4, base 2 is complete.
Technology contents of the present utility model and technical characterstic have disclosed as above; but those skilled in the art should be able to will be appreciated that; under creative ideas of the present utility model; the changes and improvements of various structural or logicality can be carried out above-described embodiment, but all belong to protection range of the present utility model.The structural representation illustrated and specific embodiment described above are not intended to limit according to all embodiments of the present utility model.Protection range of the present utility model determined by claim.
Claims (6)
1. an earth leakage protective socket; comprise housing and be arranged at support, cartridge assemblies, resetting device and the test mechanism in described housing; described support is provided with a pair accessory power outlet sheet; described cartridge assemblies comprises circuit board and the trip gear be arranged on described circuit board and a pair elasticity movable contact spring; it is characterized in that; described elasticity movable contact spring is connected to socket input; and contact with described accessory power outlet sheet in normal operation, to form the electrical connection between socket input and output.
2. earth leakage protective socket according to claim 1; it is characterized in that; the electromagnetic component that described trip gear comprises release, catch member and is associated; the snap close hole clipping that described catch member is passed for the return pin of described resetting device comprises the first hole clipping and the second hole clipping that are interconnected diametrically, and the size of wherein said second hole clipping is less than the size of described first hole clipping and matches with the diameter of described return pin.
3. earth leakage protective socket according to claim 2; it is characterized in that; described circuit board is also provided with the auxiliary switch be made up of auxiliary movable contact spring and auxiliary static contact; described release is provided with impel described elasticity movable contact spring to contact with described accessory power outlet sheet carry arm, and to carry described in being arranged on below arm and the assisted Extraction arm be positioned at below described auxiliary movable contact spring.
4. earth leakage protective socket according to claim 1; it is characterized in that; described elasticity movable contact spring inserts the magnetic ring component be arranged on described circuit board; and comprise live wire movable contact spring and zero line movable contact spring; wherein said live wire movable contact spring is provided with location hole to be inserted in the reference column in described magnetic ring component; described zero line movable contact spring is provided with opening, is provided with elastic contact chip in order to contact with the copper pin in described magnetic ring component in it.
5. earth leakage protective socket according to claim 1, is characterized in that, also comprises the lamp sheet light that the indicator light on circuit board sends being guided to described outside in described housing, and it is constructed to reduce gradually from described indicator light to described shell dimension.
6. earth leakage protective socket according to claim 1, is characterized in that, also comprises grounding rack assembly in described housing, and the part that described housing is extended at its two ends is provided with installation screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520096621.4U CN204424603U (en) | 2015-02-10 | 2015-02-10 | Earth leakage protective socket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520096621.4U CN204424603U (en) | 2015-02-10 | 2015-02-10 | Earth leakage protective socket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204424603U true CN204424603U (en) | 2015-06-24 |
Family
ID=53474938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520096621.4U Withdrawn - After Issue CN204424603U (en) | 2015-02-10 | 2015-02-10 | Earth leakage protective socket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204424603U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105990754A (en) * | 2015-02-10 | 2016-10-05 | 苏州益而益电器制造有限公司 | Leakage protection socket |
| CN108231499A (en) * | 2016-12-14 | 2018-06-29 | 苏州益而益电器制造有限公司 | A kind of earth leakage protective device |
-
2015
- 2015-02-10 CN CN201520096621.4U patent/CN204424603U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105990754A (en) * | 2015-02-10 | 2016-10-05 | 苏州益而益电器制造有限公司 | Leakage protection socket |
| CN105990754B (en) * | 2015-02-10 | 2018-12-28 | 苏州益而益电器制造有限公司 | Earth leakage protective socket |
| CN108231499A (en) * | 2016-12-14 | 2018-06-29 | 苏州益而益电器制造有限公司 | A kind of earth leakage protective device |
| CN108231499B (en) * | 2016-12-14 | 2020-02-21 | 苏州益而益电器制造有限公司 | Leakage protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150624 Effective date of abandoning: 20181228 |
|
| AV01 | Patent right actively abandoned |