CN102474022A - Grounding device for a protective contact plug and protective contact plug - Google Patents
Grounding device for a protective contact plug and protective contact plug Download PDFInfo
- Publication number
- CN102474022A CN102474022A CN2010800309886A CN201080030988A CN102474022A CN 102474022 A CN102474022 A CN 102474022A CN 2010800309886 A CN2010800309886 A CN 2010800309886A CN 201080030988 A CN201080030988 A CN 201080030988A CN 102474022 A CN102474022 A CN 102474022A
- Authority
- CN
- China
- Prior art keywords
- contact area
- earthing device
- join domain
- segmentation
- plug
- 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.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/655—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding with earth brace
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/22—Bases, e.g. strip, block, panel
- H01R9/24—Terminal blocks
- H01R9/26—Clip-on terminal blocks for side-by-side rail- or strip-mounting
- H01R9/2691—Clip-on terminal blocks for side-by-side rail- or strip-mounting with ground wire connection to the rail
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Abstract
The present invention relates to a grounding device for a protective contact plug, comprising at least one base section and at least one leg section, which is arranged substantially perpendicular to the base section, wherein the leg section has a first and a second contact area for electrically contacting a grounding device of a protective contact receptacle, and the first contact area is wider than the second contact area, and to a protective contact plug having such a grounding device.
Description
Technical field
The present invention relates to a kind of earthing device and a kind of safety plug that is used for safety plug.Particularly the present invention relates to safety plug a kind of as that in DIN49440/441, describe.
Background technology
The common safety plug of a lot of countries has the contact pilotage of two circles in Europe, and its diameter is that 4.8mm, length are that 19mm and the distance between axles that is directed against the phase line and the neutral line are 19mm.The voltage that the 3rd utmost point (protective earthing contact) conduction is dangerous, i.e. ground connection is in case current circuit is through two other the utmost point (phase line and the neutral line) closures.Therefore, should at first realize being connected of (promptly shifting to an earlier date) and safety plug.For the situation of safety plug, this is able to guarantee through contact spring corresponding in contact-making surface on the plug side and the safety socket.
Adopt three-core conductor on the safety plug in order to be connected to, it comprises the safety lead-in wire of phase line, the neutral line and ground connection.The case material of conduction must be connected with the safety lead-in wire.
As earthing device, the protective earthing contact is usually designed to crooked latten(-tin) in safety plug.Your because the prices of raw and semifnished materials are increasingly high, hope to use electric conducting material or alloy, particularly brass as few as possible at the earthing device that is used for safety plug.
Summary of the invention
The objective of the invention is to, propose a kind of earthing device and a kind of safety plug that is used for safety plug, it can make with the materials with smaller consuming cost cheaply.
According to the present invention, the earthing device of the characteristic of this purpose through having claim 1 is realized.
Be narrower than first contact area in order to make contact area have different length and/or width and preferred second contact area, can in a contact area, (preferably in second contact area) save electric conducting material (particularly brass).Therefore, the Master Cost when making earthing device is able to reduce.
According to a preferred embodiment, (preferred a second) contact area is designed to contact projection, its another, outstanding on the end of preferred first contact area.This contact projection has prolonged effective contact-making surface of flank segmentation, promptly through this contact-making surface, the earthing device of the earthing device of safety plug contact safety socket when inserting safety socket, is generally contact spring.
Preferably at another, join domain is set on the end of preferred first contact area, it can be placed in the mechanical connection with the plug electric bridge of safety plug.Therefore,, realized by earthing device the reliable fixation of earthing device in safety plug when being structured in the safety plug.
Particularly advantageously be, join domain for plug electric bridge mechanical connection can be crooked.
According to another preferred embodiment, join domain has at least one support chip, through support chip join domain is connected with another, the end (forming second contact area above that) of preferred first contact area.
Particularly advantageous is that join domain has two support chips, between these two support chips, second contact area is set, and through these two support chips join domain is connected with the end of first contact area.Through these two support chips,, realized by earthing device that join domain is connected with the special reliable mechanical of the plug electric bridge of safety plug when being structured in the safety plug.
The olo of preferred two support chips equals the width of first contact area.
According to another preferred embodiment, the interior spacing of two support chips is greater than the width of second contact area.Therefore, save material on the one hand.On the other hand, if second contact area preferably with two support chips separately, when join domain is bent on the plug electric bridge for earthing device is fixed on, prevented that two support chips and second contact area from hooking.
Preferred join domain is designed to U-shaped basically.
According to another preferred embodiment, design is essentially the recess of U-shaped between the join domain and second contact area.Therefore, saved other material and prevented that join domain is hooked in second contact area when being bent in the safety plug in that earthing device is installed in when join domain.
According to another preferred embodiment, join domain has at least one distolateral recess, and it is arranged on the end of flank segmentation.Therefore, when making earthing device, saved other electric conducting material.
Preferably on two ends of basic segmentation, be provided with respectively one vertical basically, have a flank segmentation of one first and second contact area respectively.If earthing device is structured in the safety plug, safety plug can insert in the safety plug on two positions of 180 ° of rotations, wherein, on two positions, is grounded.
Preferred basic segmentation and two flank segmentations are designed to a member.
Other preferred embodiment of earthing device is listed in other dependent claims.
Aforementioned purpose also realizes through having like the safety plug of the described earthing device of at least one previous embodiment according to the present invention.
Preferred safety plug has the plug electric bridge, and it has at least one convexity, and join domain is arranged in the interlocking with earthing device through this convexity.
Particularly advantageous is that the join domain ring of earthing device encloses the convexity of plug electric bridge.Therefore, realized that earthing device is connected with special reliable mechanical between the plug electric bridge.
Second contact area of preferred earthing device covers the outer surface of the convexity of plug electric bridge.Make through this convexity the back side mechanically stable of second contact area to have stoped second contact area crooked to plastic body when ground spring is installed thus, this can cause overlap or waste product when sealing so that PVC is pressure injection-moulded.
Other preferred embodiment of safety plug is listed in other dependent claims.
Description of drawings
Combine accompanying drawing to set forth the present invention in detail by means of preferred embodiment below.Wherein,
Fig. 1 shows the schematic side elevation of the earthing device of the completion bending with two flank segmentations,
Fig. 2 shows the schematic plan of flank segmentation under unbent state of earthing device,
Fig. 3 a shows the schematic plan of flank segmentation under the state of bending as shown in Figure 2,
Fig. 3 b shows the perspective view in the zone of safety plug, does not have that PVC is pressure injection-moulded to seal, have earthing device, and it is connected with the plug electric bridge of safety plug.
Embodiment
Fig. 1 shows the end view of the earthing device 1 of the completion bending with two flank segmentations 3.Fig. 2 shows the schematic plan of flank segmentation 3 under unbent state of earthing device 1 (such as earthing device as shown in Figure 1 1).Fig. 3 shows the perspective view in the zone of safety plug 20, does not have that PVC is pressure injection-moulded to seal, have earthing device 1 (such as earthing device as shown in Figure 1 1), and it is connected with the plug electric bridge (Steckerbr ü cke) 21 of safety plug 20.
Earthing device 1 shown in Figure 1 has a basic segmentation 2 (cut and illustrate) and two flank segmentations 3 here.Preferred earthing device 1 is made into integration (such as being stamped to form) by conduction lath (such as by brass sheet).
For safety lead-in wire is connected with earthing device 1 conduction, basic segmentation 2 preferably has crimping socket or screw receptacle (not shown), in order to set up and electrically contacting of going between safely through clamping or screw in bolt.
Flank segmentation 3 is arranged on the two ends of basic segmentation 2 and is substantially perpendicular to basic segmentation 2 respectively extends, thereby flank segmentation 3 is provided with in the face of ground each other.Although the earthing device shown in Fig. 11 has shown two flank segmentations 3, also can make earthing device 1 only have a basic segmentation 2 and a flank segmentation 3 that is substantially perpendicular to basic segmentation setting.
Under this associated context, adopt the statement of " basically ", this is that wherein, one or more flank segmentations 3 are bent with respect to basic segmentation 2 because earthing device 1 is preferably processed by the lath of conduction.Can make basic segmentation 2 surround out an angle with each flank segmentation 3 through chamfered edge, it is not accurately to equal 90 °, but is slightly larger than or is slightly less than (such as ± 5 °) 90 °.
Therefore, can be in the pretightning force that is fixed on plug electric bridge 21 last times adjusting flank segmentation 3.Therefore earthing device 1 preferably is designed to ground spring.
Flank segmentation 3 is extended along vertical L of earthing device 1.Vertical L extends along the y direction of the safety plug 20 that earthing device 1 is installed to, and promptly extends towards the contact pilotage (not shown) direction of safety plug 20.
Usually the basic segmentation 2 of earthing device 1 can be identified from the outside, and prerequisite is vertically to observe safety plug 20 on the L.The lower area of flank segmentation 3 can recognize in the both sides of the opposition of the plug electric bridge 21 of safety plug 20.
Preferred two flank segmentations 3 can be in Fig. 1 through in one plane the mirroring of (longitudinal axis of safety plug 20 extends in this plane) project to together each other.Two flank segmentations 3 can be projected to together through the rotation around 180 ° of the longitudinal axis each other.
Flank segmentation 3 has first contact area 4 and second contact area 5 that is connected therewith shown in figure 2.First contact area 4 begins in the lower area of flank segmentation 3 according to Fig. 2, promptly in following zone, begins, and in this zone, flank segmentation 3 preferably is connected with the end of basic segmentation 2 integratedly.First contact area 4 extends to upper area from the lower area of flank segmentation 3, and wherein, whole first contact area 4 preferably has constant width B
SWith continuous, smooth contact-making surface basically.
According to Fig. 2, in the upper area of flank segmentation 3, second contact area 5 is connected on first contact area 4.Second contact area 5 is designed to contact projection, and it is at the upper end upper process of first contact area 4.Preferred first contact area 4 is processed and particularly is configured to a member with second contact area 5 by identical electric conducting material.
The length of being made up of the contact-making surface of the contact-making surface of first contact area 4 and second contact area 5 is L
KEffective contact-making surface 10 can be along its whole length L
KBe utilized, be used for inserting safety sockets or machinery and another earthing device, the particularly ground spring that electrically contact safety socket when safety socket is extracted when safety plug 20.
In Fig. 2, on the upper end of first contact area 4, also be provided with join domain 6, it can be placed in the mechanical connection with the plug electric bridge 21 of safety plug 20, and is as shown in Figure 3.For this reason, join domain 6 is preferably flexible, and promptly the electric conducting material of earthing device 1 at least can plastic deformation in this zone.Also preferred and all the other the flank segmentation 3 one designs of the join domain 6 of flank segmentation 3.
In Fig. 1, two mutual opposed join domains 6 have been bent, and join domain 6 also is positioned at a plane with first and second contact areas 4,5 shown in figure 2.
In embodiment shown in Fig. 2, join domain 6 has two mutual opposed support chips 7, and arris is each other with interior spacing A in it
iSeparately.The outer edge of two support chips 7 each other through olo
separately.The olo of preferred two support chips 7
Width B with first contact area 4
SIdentical.
Although not shown, a support chip 7 is connected with the upper end of first contact area 4 such as passing through join domain 6 only.But this unique support chip should design widelyer than support chip 7 shown in figure 2.
Distolateral segmentation has one or more distolateral recesses 9, in order to when making earthing device 1, to save other material.Preferred distolateral recess 9 is designed to arc.But it is also conceivable that other shape, such as triangle or tetragonal distolateral recess 9.
In Fig. 2, second contact area 5 is arranged between two support chips 7 as contact projection.Second contact area 5 preferably has the width B of 3.5mm at least
K
The interior spacing A of two support chips 7
iWidth B greater than second contact area 5
KThereby, have the recess 8 between the next arris of each support chip 7 and second contact area 5 on one or both sides.Therefore, can when making earthing device 1, save other material.In addition, be not hooked at the support chip 7 of having realized join domain 6 when join domain 6 is bent on the both sides of second contact area 5 shown in Fig. 3 a and 3b through recess 8 with the side rib of second contact area 5.
The distolateral segmentation of particularly preferred join domain 6 and second contact area 5 separately, in order to when making earthing device 1, to save other material and to prevent join domain 6 and second contact area 5 hooks when join domain 6 bendings each other.Therefore, particularly advantageous is that the recess 8 between the join domain 6 and second contact area 5 U-shaped basically designs.
Under unbent state, promptly when join domain 6 be not as shown in Figure 3 being bent, flank segmentation 3 preferably has the total length L of 19.5mm at least
S Recess 8 is discontinuous planes, and it is through the width B of second contact area 5
K, the interior spacing A between two support chips 7
iAnd the length L of recess on vertical L
ALimit.
Earthing device 1 under the mounted state has been shown in Fig. 3 b, and wherein, Fig. 3 a shows and launches but the schematic plan of uninstalled earthing device still.Shown in safety plug 20 particularly according to the safety plug of DIN49440/441, but it does not illustrate the insulation shell around it.Unshowned housing can such as screwed on or crimping on, perhaps can also be through sealing plug electric bridge 21 manufacturings so that the plastics (such as PVC) of electric insulation are pressure injection-moulded.
The plug electric bridge 21 of safety plug 20 has at least one projection 22, and the join domain 6 of earthing device 1 is arranged in the interlocking with this projection.Plug electric bridge 21 preferably has two projections 22, and it is right upwards to practise physiognomy in its footpath at safety plug 20, shows one at this.Be in the interlocking in the earthing device shown in Fig. 11 and these two projections 22.
If the join domain 6 of earthing device 1 be designed to be arc, particularly be illustrated in figure 2 as U-shaped, join domain 6 projection 22 of surrounding plug electric bridges 21 then, this is shown in Fig. 3 b.If join domain 6 is bent, in order to earthing device 1 is rabbeted with plug electric bridge 21, advantageously, join domain 6 crosses the angle less than 90 ° (such as 85 ° or 80 °) with two contact areas 4,5 of flank segmentation 3.Therefore, the installability of earthing device 1 is able to improve, and pretension earthing device 1 when mounted.
Particularly advantageous is that the join domain 6 of earthing device 1 is bent below the upper edge 11 of second contact area 5.For this reason, such as support chip 7 on half length or from the end of first contact area 4 its length 1/3rd after be bent.Such as after being installed in earthing device 1 on the plug electric bridge 21; The unbent zone of safety plug 3 has the total length of 17.5mm; And according to Fig. 3; The uppermost 2.5mm of flank segmentation 3 or join domain 6 is bent, thereby makes the zone of at first describing of this zone and flank segmentation 3 cross the angle less than 90 °.
In Fig. 3 b, second contact area 5 of earthing device 1 covers the outer surface of the projection 22 of plug electric bridge 21 fully.Therefore, projection 22 supports the back side of second contact area 5, has prevented that therefore second contact area 5 maybe be crooked to plug electric bridge 21 center direction when contact spring is installed.Advantageously, plug electric bridge 21 is by the plastics of electric insulation, seal such as PCV is pressure injection-moulded, and this is because avoided overlap and burr through the sealing that flushes.
The embodiment that before sets forth relates to a kind of earthing device 1 that is used to have the safety plug 20 of at least one basic segmentation 2 and at least one flank segmentation 3; The flank segmentation is substantially perpendicular to basic segmentation 2 and is provided with; Wherein, Flank segmentation 3 has first and second contact areas 4,5 of the earthing device that is used to electrically contact safety socket, and first contact area 4 is wider than second contact area 5.
The embodiment that equally, before sets forth also relates to a kind of safety plug 20 that has according to the earthing device 1 of aforementioned at least one embodiment.
An execution mode that the invention is not restricted to show among the embodiment; Second contact area 5 can also be wider than first contact area 4, and wherein, it is outstanding from first contact area 4 on length and Width all the time with second contact area 5 preferably in series connection two contact areas 4,5 o'clock to be set.
Claims (25)
1. earthing device; Be used to have the safety plug (20) of at least one basic segmentation (2) and at least one flank segmentation (3); Said flank segmentation is substantially perpendicular to said basic segmentation (2) and is provided with, and wherein, said flank segmentation (3) has first contact area (4) and second contact area (5) of the earthing device that is used to electrically contact safety socket; It is characterized in that the length (L of said contact area (4,5)
IL
K-L
I) and/or width (B
KB
S) different each other.
2. earthing device as claimed in claim 1 is characterized in that, the width of said first contact area (4) is greater than the width of said second contact area (5).
3. according to claim 1 or claim 2 earthing device; It is characterized in that; Said second contact area (5) extends out, particularly is designed to contact projection from said first contact area from said first contact area (4), and said contact projection is outstanding from said first contact area (4), preferably extend out from the end of said first contact area (4) in the vertical.
4. like at least one described earthing device in the claim 1 to 3; It is characterized in that; The join domain (6) be connected with the end of said first contact area (4) is set, and said join domain can be placed in the mechanical connection with the plug electric bridge (21) of said safety plug (20).
5. like at least one described earthing device in the claim 1 to 4, it is characterized in that said join domain (6) can be crooked in order to be connected with said plug electric bridge (21).
6. like claim 4 or 5 described earthing device; It is characterized in that; Said join domain (6) has at least one support chip (7), and said join domain (6) is connected with the end that is designed with second contact area (5) of said first contact area (4) through said support chip.
7. like at least one described earthing device in the claim 4 to 6; It is characterized in that; Said join domain (6) has two support chips (7); Between said two support chips, second contact area (5) is set, and said join domain (6) is connected with the end of said first contact area (4) through said two support chips.
8. earthing device as claimed in claim 7 is characterized in that, the olo of said two support chips (7)
Equal the width (B of said first contact area (4)
S).
9. like claim 7 or 8 described earthing device, it is characterized in that the interior spacing (A of said two support chips (7)
i) greater than the width (B of said second contact area (5)
K).
10. like at least one described earthing device in the claim 4 to 9, it is characterized in that said join domain (6) is designed to U-shaped basically.
11., it is characterized in that design is essentially the recess (8) of U-shaped between said join domain (6) and said second contact area (5) like at least one described earthing device in the claim 4 to 10.
12. like at least one described earthing device in the claim 4 to 11, it is characterized in that said join domain (6) has at least one distolateral recess (9), it is arranged on the end of said flank segmentation (3).
13. earthing device as claimed in claim 12 is characterized in that, said distolateral recess (9) is curved basically.
14., it is characterized in that said first contact area (4) and said second contact area (5) have contact-making surface (10), its total length (L like at least one described earthing device in the claim 1 to 13
K) be 14.5mm at least, preferably 16.5mm, particularly preferred 17.5mm at least at least.
15., it is characterized in that the width (B of said second contact area (5) like at least one described earthing device in the claim 1 to 14
K) be 3.5mm at least.
16. like at least one described earthing device in the claim 1 to 15; It is characterized in that, on two ends of said basic segmentation (2), be provided with respectively one vertical basically, have a flank segmentation (3) of first and second contact area (4,5) respectively.
17. earthing device as claimed in claim 16 is characterized in that, said basic segmentation (2) and two flank segmentations (3) are designed to a member.
18., it is characterized in that said earthing device is by lamellar, preferably be made up of the crooked stamping parts of brass like at least one described earthing device in the claim 1 to 17.
19. a safety plug has like at least one described earthing device (1) in the claim 1 to 18.
20. safety plug as claimed in claim 19 has plug electric bridge (21), it has at least one convexity (22), and the join domain (6) of said earthing device (1) is arranged in the interlocking with said convexity.
21., it is characterized in that the convexity (22) that join domain (6) ring of said earthing device (1) encloses said plug electric bridge (21) like claim 19 or 20 described safety plugs.
22., it is characterized in that said join domain (6) crosses the angle less than 90 ° with two contact areas (4,5) like at least one described safety plug in the claim 19 to 21.
23., it is characterized in that the join domain (6) of said earthing device (1) is bent in upper edge (11) below of said second contact area (5) like at least one described safety plug in the claim 20 to 22.
24., it is characterized in that second contact area (5) of said earthing device (1) covers the outer surface of the convexity (22) of said plug electric bridge (21) like at least one described safety plug in the claim 19 to 23.
25., it is characterized in that the upper edge (11) of second contact area (5) of said earthing device (1) is concordant with the upper edge (23) of the convexity (22) of said plug electric bridge (21) like at least one described safety plug in the claim 19 to 24.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200910032546 DE102009032546B4 (en) | 2009-07-10 | 2009-07-10 | Earthing device for a safety plug and earthing contact plug |
| DE102009032546.8 | 2009-07-10 | ||
| PCT/EP2010/004151 WO2011003605A1 (en) | 2009-07-10 | 2010-07-07 | Grounding device for a protective contact plug and protective contact plug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102474022A true CN102474022A (en) | 2012-05-23 |
| CN102474022B CN102474022B (en) | 2015-05-06 |
Family
ID=42697177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080030988.6A Active CN102474022B (en) | 2009-07-10 | 2010-07-07 | Grounding device for a protective contact plug and protective contact plug |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2452401B1 (en) |
| CN (1) | CN102474022B (en) |
| DE (1) | DE102009032546B4 (en) |
| WO (1) | WO2011003605A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011006834A1 (en) * | 2011-04-06 | 2012-10-11 | Robert Bosch Gmbh | Leading ground contact by means of spring element |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2164125Y (en) * | 1993-08-13 | 1994-05-04 | 林东明 | Safety plug |
| CN2540042Y (en) * | 2002-04-08 | 2003-03-12 | 魏阳 | Safety plug |
| CN2796186Y (en) * | 2005-05-25 | 2006-07-12 | 中原工学院 | Safety plug capable of rotating and folding plug leg |
| DE202007002268U1 (en) * | 2007-02-15 | 2007-07-12 | GEM TERMINAL IND. CO., LTD., Lu-Chu Hsiang | Corresponding construction for inner framework, has recess designed at wire-receiving element with corresponding side of wire-receiving base, which receives element of earth plate and is positioned for adjusting wire |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE6916076U (en) * | 1969-04-22 | 1969-10-23 | Kopp Fa Heinrich | ELECTRIC PROTECTIVE CONTACT PLUG |
| DE7303118U (en) * | 1973-01-27 | 1973-04-26 | Gebrueder Merten | PROTECTIVE PLUG OR COUPLING SOCKET |
| DE10218567C5 (en) * | 2002-04-26 | 2010-08-05 | Wieland Electric Gmbh | connection system |
| DE102006059826A1 (en) * | 2006-12-19 | 2008-07-03 | Moeller Gmbh | Contact element for attachment to an electrical switching device to be mounted on a mounting rail |
-
2009
- 2009-07-10 DE DE200910032546 patent/DE102009032546B4/en not_active Expired - Fee Related
-
2010
- 2010-07-07 CN CN201080030988.6A patent/CN102474022B/en active Active
- 2010-07-07 WO PCT/EP2010/004151 patent/WO2011003605A1/en active Application Filing
- 2010-07-07 EP EP10730102.0A patent/EP2452401B1/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2164125Y (en) * | 1993-08-13 | 1994-05-04 | 林东明 | Safety plug |
| CN2540042Y (en) * | 2002-04-08 | 2003-03-12 | 魏阳 | Safety plug |
| CN2796186Y (en) * | 2005-05-25 | 2006-07-12 | 中原工学院 | Safety plug capable of rotating and folding plug leg |
| DE202007002268U1 (en) * | 2007-02-15 | 2007-07-12 | GEM TERMINAL IND. CO., LTD., Lu-Chu Hsiang | Corresponding construction for inner framework, has recess designed at wire-receiving element with corresponding side of wire-receiving base, which receives element of earth plate and is positioned for adjusting wire |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2452401B1 (en) | 2014-06-11 |
| CN102474022B (en) | 2015-05-06 |
| DE102009032546B4 (en) | 2011-04-21 |
| EP2452401A1 (en) | 2012-05-16 |
| DE102009032546A1 (en) | 2011-01-13 |
| WO2011003605A1 (en) | 2011-01-13 |
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