CA1109937A - Connector for coupling with another similar connector - Google Patents
Connector for coupling with another similar connectorInfo
- Publication number
- CA1109937A CA1109937A CA319,303A CA319303A CA1109937A CA 1109937 A CA1109937 A CA 1109937A CA 319303 A CA319303 A CA 319303A CA 1109937 A CA1109937 A CA 1109937A
- Authority
- CA
- Canada
- Prior art keywords
- connector
- fingers
- finger
- contact
- contact elements
- 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.)
- Expired
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
Abstract of the Disclosure An electrical connector, which can be coupled to a second similar connector to establish electrical connection therebetween, comprises an insulating body portion having a plurality of fingers extending therefrom, an outer one of which fingers carries no contact and each other one of which fingers carries in a recess a respective contact facing the outer finger. The fingers having contacts can overlie one another in a stepped arrangement or can all lie in the same plane. The sizes of the fingers and the gaps therebetween are such as to permit coupling together of similar connectors whilst avoiding the possibility that the contacts can be touched, so that the connector can be used arbitrarily as a power input or output connector.
Description
This in~ention generally relates to a connecting assembly for electrLc use of the kind compxisin~ two connectors capable to be coupled togather and be separated without requiring khe use of any tool. The invention more precisely relates to such a connector.
At known connecting assemblies comprising two connectorsl one connector, more definitely that one from which effect output is to take place, l~.e. the output connector, is provlded with contact elemen~ in the form of sleeves, which are protected against electric shock hazard and, therefore, can be live even when they are separated from the second connector. Said second conneckor, through whlch effect input is to take place, i.e.
the~input connector, is provided with contact alements in the form of easily accessible pins mating with the contact sleeves :e tha output connector. The input connector, or pin connector, , thus is not protected ~against electric shock hazard and, there-fore, must not be~liv0~;when it is separated from its output : :: ' 3~ ~
connector, or sleeve connector. The fact that one connector of the known connecting assemblles includes contact elements, which are not protected againsk electric shock hazard, implies the possibility that by mistake or intentionally a connector, ~ 5 which is intended to be an input connector and provided with :. accessible contact elements, is used as a live output connector, which when being touched can cause serious injuries, especially when it is connected to a 220V or 380V circuit of two-phase or three phase type. This is a serious disadvantage of the conventional connectors and entirely unsatisfactory from a safety point o~ view.
The present invention, thereiore, has the object to provide a connector, which can be used as an output connector ; 15 to~ether w~th a similar connector used as input connector, or as an input connector together with a similar connector used ~: as output connec~or~ and ~hich i~
protected against shock hazard irrespective of its use as out-; put or input connector in a connecting assembly comprising two such connectors, and by which such a connector is simpli-fied and its manufacture and stock~keeping cheapened, because one and the sanle type of connector can be used both as input and output connector, which latter possibility does not exist with conventional connectors.
This object is achieved in that the connector according to the invention has heen given the characterizing features .
; defined in the attached claims. ~
~ '", . .
'~
At known connecting assemblies comprising two connectorsl one connector, more definitely that one from which effect output is to take place, l~.e. the output connector, is provlded with contact elemen~ in the form of sleeves, which are protected against electric shock hazard and, therefore, can be live even when they are separated from the second connector. Said second conneckor, through whlch effect input is to take place, i.e.
the~input connector, is provided with contact alements in the form of easily accessible pins mating with the contact sleeves :e tha output connector. The input connector, or pin connector, , thus is not protected ~against electric shock hazard and, there-fore, must not be~liv0~;when it is separated from its output : :: ' 3~ ~
connector, or sleeve connector. The fact that one connector of the known connecting assemblles includes contact elements, which are not protected againsk electric shock hazard, implies the possibility that by mistake or intentionally a connector, ~ 5 which is intended to be an input connector and provided with :. accessible contact elements, is used as a live output connector, which when being touched can cause serious injuries, especially when it is connected to a 220V or 380V circuit of two-phase or three phase type. This is a serious disadvantage of the conventional connectors and entirely unsatisfactory from a safety point o~ view.
The present invention, thereiore, has the object to provide a connector, which can be used as an output connector ; 15 to~ether w~th a similar connector used as input connector, or as an input connector together with a similar connector used ~: as output connec~or~ and ~hich i~
protected against shock hazard irrespective of its use as out-; put or input connector in a connecting assembly comprising two such connectors, and by which such a connector is simpli-fied and its manufacture and stock~keeping cheapened, because one and the sanle type of connector can be used both as input and output connector, which latter possibility does not exist with conventional connectors.
This object is achieved in that the connector according to the invention has heen given the characterizing features .
; defined in the attached claims. ~
~ '", . .
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, . . ............. . . . .. . .
The invention is described in greater detail in the following, with reference to the accompanying drawings, in which Fig. 1 is a lateral view of a first embodiment of the con-nector according to the invention used as an output conneetor, Fig. 2 is a lateral view, partially in section, of a similar connector as that shown in Fig. 1, but used as an in-put connector mating with the output connector in Fig. 1, - ~
Fig. 3 is a section along the line II-II in Fig. 1, Fig. 4 is a horizontal view of only a portion of a second embodiment of the connector according to the invention, Fig. 5 is a section along the line V-V in Fig. 4, Fig. 6 is a section along the line VI-VI in ~ig. 4, showing the conneetor used as an output connector, Fig. 7 is a section of a similar connector as that shown in Figs. 4-5, but used as an input connector mating with the output connector in Fig. 6, and 2a Fig. 8 shows a slightly modified embodiment of the connector according to the invention shown in Figs. 4-7.
In the drawings some embodiments of the connector aecordLng to the in~ention are illustrated only by way of example, without enclosing housing and connections, because these details per se are not required for eluciclating the in-vention. The examples shown, furthermorè, are intended for -a five-wire, i.e. a eireuit with three pha~es, one neutral wire and non-~used earth conductor, which in known manner is con- ~-neeted to the houslng o~ the eonneclor, for example by means of a proteetive~screw. The invention, however, is not restrie-te~d to just this type of circuit, but ean be applied to all ~ ~ ~ -3-: ~
:
.
types of power systems.
The connector according to the invention comprises a body portion 1, which at the embodiment according to ~igsO
1 - 3 is made integer from an insulating material, as for 5 example hard rubber, bakelite, plastic, porcelain or other material suitablel for example, for compression molding or mold casting, with fingers 2,3,4 and 5, preferably of rectan-gular cross-section, which project at one end of the body portion and are disposed above each other 7 as shown in Fig D 3.
Said fingers, which are spaced apart relative to each other by gaps 6,7 and, xespectively, 8, have equal length, but are at said embodiment so offset relative to each other, that the finger 3 extends past the finger 2 an equal distance as the finger 4 extends past the finger 3 r while the finger S, which substantially acts as a protection, is shown having the same extension as the finger 4, counted from the bottom 9 of the gap 80 Thb fingers 2, 3 and 4 at the embodiment according to Figs. 1 3 have equal `thickness corresponding to the distance between two fingers, i.e. the gap height is the same ~or all 2~ gaps in the cases when the fingers 2,3 and 4 have the same .~ thickness, while the ~lnger 5 has a slightly greater thickness than the remaining fingers and preferably a thickness, which : corresponds to the distance from the upper surface 10 o the .; fin~er 2 shown in Flg. 1 to the upper surface 11 o~ the body 25 portion, and which should exceed the height of the gaps, for reasons to be explained in greater detail later on in this descriptive part. In this connection mentioning should he made r that the ~ingexs 2~3 and 4 within the scope of the invention may be given a varying thickness, pro~ided that the gap 8 is given a height corresponding to the ~hickness of the ; finger 2, the gap 7 is given a height corresponding to the ~ ,
, . . ............. . . . .. . .
The invention is described in greater detail in the following, with reference to the accompanying drawings, in which Fig. 1 is a lateral view of a first embodiment of the con-nector according to the invention used as an output conneetor, Fig. 2 is a lateral view, partially in section, of a similar connector as that shown in Fig. 1, but used as an in-put connector mating with the output connector in Fig. 1, - ~
Fig. 3 is a section along the line II-II in Fig. 1, Fig. 4 is a horizontal view of only a portion of a second embodiment of the connector according to the invention, Fig. 5 is a section along the line V-V in Fig. 4, Fig. 6 is a section along the line VI-VI in ~ig. 4, showing the conneetor used as an output connector, Fig. 7 is a section of a similar connector as that shown in Figs. 4-5, but used as an input connector mating with the output connector in Fig. 6, and 2a Fig. 8 shows a slightly modified embodiment of the connector according to the invention shown in Figs. 4-7.
In the drawings some embodiments of the connector aecordLng to the in~ention are illustrated only by way of example, without enclosing housing and connections, because these details per se are not required for eluciclating the in-vention. The examples shown, furthermorè, are intended for -a five-wire, i.e. a eireuit with three pha~es, one neutral wire and non-~used earth conductor, which in known manner is con- ~-neeted to the houslng o~ the eonneclor, for example by means of a proteetive~screw. The invention, however, is not restrie-te~d to just this type of circuit, but ean be applied to all ~ ~ ~ -3-: ~
:
.
types of power systems.
The connector according to the invention comprises a body portion 1, which at the embodiment according to ~igsO
1 - 3 is made integer from an insulating material, as for 5 example hard rubber, bakelite, plastic, porcelain or other material suitablel for example, for compression molding or mold casting, with fingers 2,3,4 and 5, preferably of rectan-gular cross-section, which project at one end of the body portion and are disposed above each other 7 as shown in Fig D 3.
Said fingers, which are spaced apart relative to each other by gaps 6,7 and, xespectively, 8, have equal length, but are at said embodiment so offset relative to each other, that the finger 3 extends past the finger 2 an equal distance as the finger 4 extends past the finger 3 r while the finger S, which substantially acts as a protection, is shown having the same extension as the finger 4, counted from the bottom 9 of the gap 80 Thb fingers 2, 3 and 4 at the embodiment according to Figs. 1 3 have equal `thickness corresponding to the distance between two fingers, i.e. the gap height is the same ~or all 2~ gaps in the cases when the fingers 2,3 and 4 have the same .~ thickness, while the ~lnger 5 has a slightly greater thickness than the remaining fingers and preferably a thickness, which : corresponds to the distance from the upper surface 10 o the .; fin~er 2 shown in Flg. 1 to the upper surface 11 o~ the body 25 portion, and which should exceed the height of the gaps, for reasons to be explained in greater detail later on in this descriptive part. In this connection mentioning should he made r that the ~ingexs 2~3 and 4 within the scope of the invention may be given a varying thickness, pro~ided that the gap 8 is given a height corresponding to the ~hickness of the ; finger 2, the gap 7 is given a height corresponding to the ~ ,
3~
thickness of the finger 3, and the gap 6 is given a height corresponding to the thic]cness of the finger 4. In all cases, however, the gap height must not be so great that one finger of a person can enter between two fingers of the body portion.
The gap height, thus, must not be greater than 4~5 mm, prefer~
ably 2 3 mm.
In that surface of each of the fingers 2, 3 and 4 which faces to the protective finger 5, contact elements 12 are sunk into grooves so that each such element, which may consist of a relatively thin metal bar with a width smaller than the width of the respective finger, shows an exposed contact surface 13, which preferably is resilient or bulging outward in the direction from the groove bottom, and which should terminate spaced from the free end 14 of the respective fingers, in order to render the access to the contact elements 12 still more difficult, which also with their longitudinal ; edges are located inside of the longitudinal edges of the respective fingers, as is apparent especially in Fig. 3~
Said grooves, into which the contact elements are sunk, of course must have such a depth adjusted to the thickness o~ the contact elemenk, that the contact element never can be located with its contact surface 13 inside of a plane through and in parallel with that late.ral surface oE the respective fingers which faces to *he finger 5. Every contact bar 12 extends all the way to the end 15 of the body portion where the bars in some known manner, for example by contact screws, terminals, so]dering or similar arrangement, can be connected to the three phases of a wire. Said end 15 may have stepped design in order to render the connection easier, though this design is not shown in the Figures. The neutral wire of the circuit is connected to contact elements 16 provided for this purpose '' ' : - -. . : : ., . . , . . -3~
on the connector, which elements at the embodiments shown in the drawings have the form of a U shaped metal bar, the legs 17 of which extend over the greater part of the height of the body portion from the finger 5, which protec-ts the contact elements 12 of the finger 4 against touchO In Fig. 1 as well as in Figs. 4 - 7, the contact element 16 for the :
neutral wire is indicated only by a dash-dotted contour line.
By adding a further finger and associated contact element to the connector, of course, the neutral wire of the circuit can be connected to this contact element, thereby rendering the contact element 16 shown in the drawing superfluous. Said U-shaped contact element, however, is to be pre~erred to an additional ~inger with associated contact element, a.o. for mounting-technical reasons, because the contact element for the lS neutral wire hereby is better distinguished from the remaining contact elements intended for other wixes of the circuit, and there is less risk of connecting the neutral wire wrongly.
The U-shaped contact element 16 further provides a larger contact surface than a contact element of the type designated by 12, and it acts as an additional protection against touching the contact elements 12 of the fingers, because the element 16 with its legs 17 covers the gaps 6,7 and 8 between the fingers from the side. The contact elements 12 of the firlgers, thus, are located well protected and difficult to get at within the hody portion 1~ For shielding the contact element 16 from the housing (not shown) of the connector, the housing preferably is provided on its inner surface with a layer of an insulating material, wh1ch prevents electric contact between the contact element 16 and the housing.
3~ In Fig. 1 the~connecto,r according to the invention is shown applied as an output connector, the contact elements ~:
. - : ' . ~
3~7 12 of which are located entlrely protected against touch and, therefore, may be live even when the connector is no-t coupled together with another connector. In E'ig. 2 is also shown a connector according to the invention which is identically equal with the connector shown in Fig. 1, but which is applied as an input connectox by having been turned through 180 about both a horizontal and a vertical axis in relation to the con-nector shown in Fig. 1. The contact elements 12 of the con-nector, even when it is used as input connector, are located entirely protected against touch and, therefore, the connector according to the invention can be used both as input and as output connector without any live contact element being acces-sible, not even then when the connectors are completely separ-ated from each other. The two connectors shown as output con-nector and input connector in Figs. 1 and 2 are coupled to-gether very simply by manually pushing the connectors together, whereby the finger 5 due to its thickness exceeding the height of each gap prevents any form of wrong connection of the connectors. When the connectors are being pushed together, thus, the contact elements 12 and the contact elements 16 in the two connectors are caused to abut each other, and when they are completely pushed together, a good electric contact between them is established. The contact pressure between the contact bars 15 can be made adjustable, when required, by means of special adjusting screws (not shown), and the contact bars further can be provided with longitudinal slots and be designed to bulge outward in different degrees in order to bring about the necessary contact pressure. In order to separate the ~`
connectors, they~are very simply pulled apart, whereby flash- -o~er between the contact elements 12 substantially is elim---inated owing to the stepped design of the fingers 2 - 4.
~7-:
a37 The housing (not shown) o.f the ~onnector may be made of compression-molded aluminum and should so be formed, that it does not restrict the connector according to the invention to be used either as output connector or as input connector, but permits the connector to be used for both purposes.
At the embodiment of the connector illustrated in Figs. 4 - 7 the f.ingers 2, 3 and 4 with associated contact elements 12 terminating before the free end 14 of the fingers are arranged to the side of each other in one and the same plane and at a distance from the thicker protective finger 5 .- corresponding to the thi~kness of the fingers 2, 3 and 4, which: as mentioned above must not exceed 5 mm~ The :Eingers 2, 3 and
thickness of the finger 3, and the gap 6 is given a height corresponding to the thic]cness of the finger 4. In all cases, however, the gap height must not be so great that one finger of a person can enter between two fingers of the body portion.
The gap height, thus, must not be greater than 4~5 mm, prefer~
ably 2 3 mm.
In that surface of each of the fingers 2, 3 and 4 which faces to the protective finger 5, contact elements 12 are sunk into grooves so that each such element, which may consist of a relatively thin metal bar with a width smaller than the width of the respective finger, shows an exposed contact surface 13, which preferably is resilient or bulging outward in the direction from the groove bottom, and which should terminate spaced from the free end 14 of the respective fingers, in order to render the access to the contact elements 12 still more difficult, which also with their longitudinal ; edges are located inside of the longitudinal edges of the respective fingers, as is apparent especially in Fig. 3~
Said grooves, into which the contact elements are sunk, of course must have such a depth adjusted to the thickness o~ the contact elemenk, that the contact element never can be located with its contact surface 13 inside of a plane through and in parallel with that late.ral surface oE the respective fingers which faces to *he finger 5. Every contact bar 12 extends all the way to the end 15 of the body portion where the bars in some known manner, for example by contact screws, terminals, so]dering or similar arrangement, can be connected to the three phases of a wire. Said end 15 may have stepped design in order to render the connection easier, though this design is not shown in the Figures. The neutral wire of the circuit is connected to contact elements 16 provided for this purpose '' ' : - -. . : : ., . . , . . -3~
on the connector, which elements at the embodiments shown in the drawings have the form of a U shaped metal bar, the legs 17 of which extend over the greater part of the height of the body portion from the finger 5, which protec-ts the contact elements 12 of the finger 4 against touchO In Fig. 1 as well as in Figs. 4 - 7, the contact element 16 for the :
neutral wire is indicated only by a dash-dotted contour line.
By adding a further finger and associated contact element to the connector, of course, the neutral wire of the circuit can be connected to this contact element, thereby rendering the contact element 16 shown in the drawing superfluous. Said U-shaped contact element, however, is to be pre~erred to an additional ~inger with associated contact element, a.o. for mounting-technical reasons, because the contact element for the lS neutral wire hereby is better distinguished from the remaining contact elements intended for other wixes of the circuit, and there is less risk of connecting the neutral wire wrongly.
The U-shaped contact element 16 further provides a larger contact surface than a contact element of the type designated by 12, and it acts as an additional protection against touching the contact elements 12 of the fingers, because the element 16 with its legs 17 covers the gaps 6,7 and 8 between the fingers from the side. The contact elements 12 of the firlgers, thus, are located well protected and difficult to get at within the hody portion 1~ For shielding the contact element 16 from the housing (not shown) of the connector, the housing preferably is provided on its inner surface with a layer of an insulating material, wh1ch prevents electric contact between the contact element 16 and the housing.
3~ In Fig. 1 the~connecto,r according to the invention is shown applied as an output connector, the contact elements ~:
. - : ' . ~
3~7 12 of which are located entlrely protected against touch and, therefore, may be live even when the connector is no-t coupled together with another connector. In E'ig. 2 is also shown a connector according to the invention which is identically equal with the connector shown in Fig. 1, but which is applied as an input connectox by having been turned through 180 about both a horizontal and a vertical axis in relation to the con-nector shown in Fig. 1. The contact elements 12 of the con-nector, even when it is used as input connector, are located entirely protected against touch and, therefore, the connector according to the invention can be used both as input and as output connector without any live contact element being acces-sible, not even then when the connectors are completely separ-ated from each other. The two connectors shown as output con-nector and input connector in Figs. 1 and 2 are coupled to-gether very simply by manually pushing the connectors together, whereby the finger 5 due to its thickness exceeding the height of each gap prevents any form of wrong connection of the connectors. When the connectors are being pushed together, thus, the contact elements 12 and the contact elements 16 in the two connectors are caused to abut each other, and when they are completely pushed together, a good electric contact between them is established. The contact pressure between the contact bars 15 can be made adjustable, when required, by means of special adjusting screws (not shown), and the contact bars further can be provided with longitudinal slots and be designed to bulge outward in different degrees in order to bring about the necessary contact pressure. In order to separate the ~`
connectors, they~are very simply pulled apart, whereby flash- -o~er between the contact elements 12 substantially is elim---inated owing to the stepped design of the fingers 2 - 4.
~7-:
a37 The housing (not shown) o.f the ~onnector may be made of compression-molded aluminum and should so be formed, that it does not restrict the connector according to the invention to be used either as output connector or as input connector, but permits the connector to be used for both purposes.
At the embodiment of the connector illustrated in Figs. 4 - 7 the f.ingers 2, 3 and 4 with associated contact elements 12 terminating before the free end 14 of the fingers are arranged to the side of each other in one and the same plane and at a distance from the thicker protective finger 5 .- corresponding to the thi~kness of the fingers 2, 3 and 4, which: as mentioned above must not exceed 5 mm~ The :Eingers 2, 3 and
4 in Figs. 4 - 7 are shown to have equal thickness, but they may be designed with different thicknesses, provided that the distance between the fingers 4 and 5 is made equal to the thiclc-ness of the finger 2, that the distance between the fingers 3 : and 5 is made equal to the thickness of the finger 3, and that : the distance between the fingers 2 and 5 is made equal to the thickness of the finger 4. The protective finger 5 at this i ~0 embodiment has a yreater length than the fingers 2, 3 and 4, .
: and it may have it also at the emhodiment shown in Figs~ 1 and 3, and it may have a greater lateral extension than the fingers 2, 3 and 4, thereby rendering the access to the contract elements 12 more difficult. At the modification shown in Fig. 8 of the embodiment shown in Figs. 4 - 7 it is entirely impossibl.e to touch the elements 12 from the side, because the protective finger 5 on its side facing to the remaining fingers 2 - 4 is formed with ridges 20 on both sides of each finger 2, 3 and 4,~ which ridges have a height corresponding 30 : accurateLy to the thickness of the fingers 2, 3 and 4, so that the ~ree side~21 of the ridges 20 is located on exactly the 3~
same level as the side of the fingers which facesi to the pro-tective fînger 5, i.e. the ridges must not be h.igher than halE
the distance between the side 22 of the protective finger 5 ' which faces to the contact elements`22 and the side 23 of a finger 2, 3 or 4 remote from the flnger 5 (Figs. 6 and 7).
At the embodiment according to Figs. 4 - 8 the body portion 1 consists of two detachably connected portions 24 and 25. The parting line between these portions coincides with the side of the fingers 2, 3 and 4 which in Figs. 6 and 7 is designated by 26.
The present invention is not restricted to what is described above and shown in the drawings, but can be altered, modified and completed in many different ways within the scope of the invention idea as it is set forth in the claims. The body portion, for example, also at the embodiment shown in Fiys. 1 - 3 may be assembled of plates of an insulating material which are detachably jointed and have a thickness correspond-ing to that of the fingers, and between said plates inter-mediate layers of insulating material may be arranged to form the gaps between the fingers. The free ends 14 of the fingers also at the embodiment shown in Figs. 1 - 3 may be located in one and the same plane~ It. is al~o possible to desLgn the three fingers 2, 3 and 4 as a single finger, the contact elements being arranged in grooves in that side of this finger which is ~acing to the protective finger and spaced apart from each other.
:
9-_~
' .
: and it may have it also at the emhodiment shown in Figs~ 1 and 3, and it may have a greater lateral extension than the fingers 2, 3 and 4, thereby rendering the access to the contract elements 12 more difficult. At the modification shown in Fig. 8 of the embodiment shown in Figs. 4 - 7 it is entirely impossibl.e to touch the elements 12 from the side, because the protective finger 5 on its side facing to the remaining fingers 2 - 4 is formed with ridges 20 on both sides of each finger 2, 3 and 4,~ which ridges have a height corresponding 30 : accurateLy to the thickness of the fingers 2, 3 and 4, so that the ~ree side~21 of the ridges 20 is located on exactly the 3~
same level as the side of the fingers which facesi to the pro-tective fînger 5, i.e. the ridges must not be h.igher than halE
the distance between the side 22 of the protective finger 5 ' which faces to the contact elements`22 and the side 23 of a finger 2, 3 or 4 remote from the flnger 5 (Figs. 6 and 7).
At the embodiment according to Figs. 4 - 8 the body portion 1 consists of two detachably connected portions 24 and 25. The parting line between these portions coincides with the side of the fingers 2, 3 and 4 which in Figs. 6 and 7 is designated by 26.
The present invention is not restricted to what is described above and shown in the drawings, but can be altered, modified and completed in many different ways within the scope of the invention idea as it is set forth in the claims. The body portion, for example, also at the embodiment shown in Fiys. 1 - 3 may be assembled of plates of an insulating material which are detachably jointed and have a thickness correspond-ing to that of the fingers, and between said plates inter-mediate layers of insulating material may be arranged to form the gaps between the fingers. The free ends 14 of the fingers also at the embodiment shown in Figs. 1 - 3 may be located in one and the same plane~ It. is al~o possible to desLgn the three fingers 2, 3 and 4 as a single finger, the contact elements being arranged in grooves in that side of this finger which is ~acing to the protective finger and spaced apart from each other.
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Claims (16)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A connector of the kind, which is intended to be coupled together with a second similar connector for electric connec-tion, comprising a body portion of an insulating material en-closed in a housing and at one end formed with a number of projecting fingers of an electrically insulating material, characterized in that all said fingers except at least one are provided on their surface facing toward said last-mentioned finger each with a contact element having a contact surface smaller than the surface of said fingers facing toward said lastmentioned finger, that between each finger provided with a contact element and the finger, to which the contact element of such a finger is facing, intermediate spaces are provided, and said intermediate spaces have a height correspond-ing to the thickness of said fingers, so that the fingers of one connector mate with the intermediate spaces of a correspond ing connector.
2. A connector as defined in claim 1, characterized in that the contact elements terminate at a distance from the free end of the respective finger which has such a relation to the height of the intermediate space, that the contact elements are located unaccessible for touch by persons.
3. A connector as defined in claim 1 or 2, characterized in that the longitudinal edges of the contact elements are located inside of the longitudinal edges of the respective fingers.
4. A connector as defined in claim 1 or 2 characterized in that the finger of the connector which has no contact element has a thickness exceeding the height of the greatest inter-mediate space.
5. A connector as defined in claim 1 or 2 characterized in that the contact elements are located sunk into the respective finger.
6. A connector as defined in claim 1 characterized in that all fingers are arranged straight above each other.
7. A connector as defined in claim 6, characterized in that the fingers with their free ends are located offset relative to each other to form a stepped design, in such a manner, that the finger having no contact element projects farthest with its free end, or at least as far as that finger of the fingers provided with contact elements which projects farthest, which lastmentioned finger is located closest to said finger having no contact element.
8. A connector as defined in claim 1, characterized in that the fingers provided with contact ele-ments are arranged to the side of each other in one and the same plane, their contact elements facing toward the finger or fingers having no contact element.
9. A connector as defined in claim 8, characterized in that the finger or fingers having no contact element have a greater extension in longitudinal direction than the fingers provided with contact elements.
10. A connector as defined in claim 8 or 9, characterized in that the finger or fingers having no contact element extend in lateral direction past the two outer fingers provided with contact elements.
11. A connector as defined in any one of the claims 8 or 9 characterized in that the finger or fingers having no contact element are on their side facing toward the contact elements provided with ridges located on both sides of each finger provided with contact elements.
12. A connector as defined in Claim 8 or 9 characterized in that the fingers provided with contact elements have in succession seen in one direction a thickness, which corre-sponds to the height of the intermediate spaces in their succession in the opposite direction.
13. A connector as defined in claim 1, 2 or 7 characterized in that the fingers provided with contact elements have the same thickness, and that the intermediate spaces between the fingers thus have a height corresponding to said thickness.
14. A connector as defined in claim 8 or 9 characterized in that as contact element for a neutral wire a U-shaped metal bar is provided which encloses the fingers.
15. A connector as defined in claim 8 or 9 characterized in that the fingers are formed integer with the body portion of insulating material.
16. A connector as defined in any one of the claims 1, 2 or 7 characterized in that the fingers consist of plates of insulating material, which are detachably jointed to each other, and intermediate layers of insulating material are located between said plates to form the intermediate spaces between the fingers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA319,303A CA1109937A (en) | 1979-01-09 | 1979-01-09 | Connector for coupling with another similar connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA319,303A CA1109937A (en) | 1979-01-09 | 1979-01-09 | Connector for coupling with another similar connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1109937A true CA1109937A (en) | 1981-09-29 |
Family
ID=4113270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA319,303A Expired CA1109937A (en) | 1979-01-09 | 1979-01-09 | Connector for coupling with another similar connector |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1109937A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103597672A (en) * | 2011-05-26 | 2014-02-19 | Gn奈康有限公司 | Hermaphroditic electrical connector device with additional contact elements |
| CN115133318A (en) * | 2022-06-06 | 2022-09-30 | 国网山东省电力公司兰陵县供电公司 | Portable electric shock prevention mechanism for electric power monitor |
-
1979
- 1979-01-09 CA CA319,303A patent/CA1109937A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103597672A (en) * | 2011-05-26 | 2014-02-19 | Gn奈康有限公司 | Hermaphroditic electrical connector device with additional contact elements |
| CN115133318A (en) * | 2022-06-06 | 2022-09-30 | 国网山东省电力公司兰陵县供电公司 | Portable electric shock prevention mechanism for electric power monitor |
| CN115133318B (en) * | 2022-06-06 | 2023-07-25 | 国网山东省电力公司兰陵县供电公司 | Portable electric shock prevention mechanism for electric power monitor |
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