• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a terminal block (1) for electric energy meters, consisting of a group consisting of an electrically insulating material housing (9) having side and end walls (11) and a housing bounding down bottom wall (10), and a lid (2 ), the sealed housing (9) closes off to the top. In the housing (9) is a number of by partition walls (26) divided and electrically isolated chambers (25) are arranged, in each of which, a certain electric potential leading terminal (15, 16) is arranged, wherein the partitions ( 26) (at its foot-side terminal side to the bottom wall 10) of the housing (9) in the region of slots (39, 40) are free.
    公开号:CH711634A2
    申请号:CH01284/16
    申请日:2016-09-29
    公开日:2017-04-13
    发明作者:Robert Seidl Dr
    申请人:Robert Seidl Dr；
    IPC主号:
    专利说明:

    Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to an electrical terminal block with an open creepage path according to the preamble of claim 1.
    [0002] Such electrical terminal blocks are used for current distribution in various current ranges, in particular in the medium current range in the range of, for example, 10 to 300 amperes.
    [0003] For example, copper conductors, busbars or contact pins are connected to the input side of such a terminal block, the connection type being via terminals.
    Terminals are designed either as screw terminals or spring clamps and each have insertion cross-sections for the introduction of the copper conductor to be connected, the current rail or the contact pin, which is accommodated in the clamping space of the clamp and is connected there by means of associated pressure elements or force elements A conductive metal.
    In particular, such terminal blocks are intended for connection to energy meters in households and in industry as well as in industry. It is known to provide such a terminal block with a bridging device which serves to locate adjacent to one another in the terminal block and lying at different voltage potentials Terminals.
    Such terminal blocks are characterized in that a number of terminals carrying a different potential are arranged in an insulating housing, the terminals being electrically insulated from each other.
    The clamping voltage is approximately 400 volts, and an overlap between the different potential-carrying terminals in adjacent chambers of the terminal block is to be avoided.
    [0008] It is known to arrange such terminals in a self-contained housing, the housing being covered by a lid which is sealed is placed on the upwardly open peripheral edge of the housing and is screwed there or welded. The insulating chambering between the various chambers in the interior of the housing is effected by gehäuseseifige partition walls, and the dielectric strength of the partition walls separating the chambers is accomplished either by selecting the thickness of each partition wall, or by the distance of the various, different potential leading terminals.
    It has been found that the insulation strength of a known terminal block is insufficient because the creepage distances are formed by self-contained cross-sections in the interior of the housing and geometrical limitations are present. The creepage distances, which ensure a high overload resistance, are therefore only achieved by the choice of the thickness of the partition, which in some cases leads to undesirably thick partition walls and overall large dimensions of such a terminal block. There are, in particular, no creepage distances which are air-supported and ensure a high breakdown strength.
    [0010] There is a risk that electrically conductive shavings, which are produced by the connection of cables in the clamp and fall downwards in the direction of the foot side of the partition walls, are caused by the connection of the partition walls on the base, To settle there.
    [0011] There are therefore formed deposits on the bottom side of the partition walls on the inner side of the bottom wall of the housing which promote the breakdown through the partition wall.
    [0012] In DE 10 2011 015 697 A1, it is shown in FIG. 5 that the partitions of the housing located there are inserted into slots of a bottom wall. However, the anchoring of partition walls in the bottom wall of a connection terminal block has the disadvantage that the receiving slots are not open downwards and are designed (only as plug-in slots in the width of the partition walls, which are only opened on one side upwards.
    The disadvantage is that the partition walls are merely inserted for mounting purposes into the upwardly open, approximately U-shaped receiving slots of the bottom wall without a leakage current interruption or ventilation of the interior space and an extension of a leakage current path being provided.
    [0014] In the case of the abovementioned printed document, there is a risk that the contactors gradually become clogged with dust and metal abrasion. Even conductive material could accumulate on the side of the chamber wall and lead to undesirable leakage currents and short circuits because such conductive material, such as contact abrasion, can not be removed from the chamber.
    [0015] This arrangement is also not suitable for ventilating the interior space for heat removal. This creates undesirable high temperatures in the interior during operation which lead to a deterioration of the insulation and to undesirable leakage currents.
    [0016] There is accordingly no ventilation for heat removal through the bottom wall.
    [0017] The same disadvantage is also present in an arrangement according to US Pat. No. 5,119,497, since only enclosed partition walls are shown which form a one-piece part with the base wall. Openings in the bottom wall are not present.
    Only a tongue-and-groove connection of partition walls is shown in slots of the bottom wall, as is disclosed, for example, in FIG. 5a of the printed document. There is thus no ventilation in the interior of the terminal block and there is no extension of the leakage current path.
    [0019] In DE 10 216 913 A1 and US Pat. No. 6,168,460 B1, the partition walls are integrally connected to the bottom wall according to FIG. 5, which leads to the same disadvantages as explained above with reference to the printed copy D2.
    The invention is therefore based on the object of developing a terminal block of the type mentioned at the outset in such a way that the overload resistance between the individual juxtaposed clamps, which are each separated from each other by a housing-side partition in electrically insulating chambers, is improved.
    [0021] In order to achieve the object set, the invention is characterized by the technical teaching of claim 1.
    It is a feature of the invention that the housing-side partition walls are exposed at their base-side connection side to the bottom wall of the housing and engage there into the bottom slots which penetrate the bottom wall of the housing with lateral play and at least partially without contact with the bottom wall, Of their bottom side of the base into the bottom slots which penetrate the bottom wall of the housing at least partially engage with lateral clearance with the formation of exposed air-guiding slots of greater width.
    [0023] Thus, any foreign bodies or contact wear can also fall out of the chamber through the bottom-side slots and do not remain enclosed in the interior.
    The exposed slots also form a ventilated extended creepage distance because the bottom wall is open in a slit-like manner at this location in order to in turn ventilate the contacts of the one contact soap towards the contacts of the opposite side. As a result, any overlap is made more difficult because the partition walls engage in slots which are opened downwards in the bottom wall.
    Accordingly, the bottom side of the housing-side partition walls is free in the region of the respective foot side of the partition and engages approximately centrally with lateral play in the bottom-side bottom slots of the housing, which means that there is no ground-side connection of the partition walls to the housing-side bottom wall. This connection area is now omitted and the bottom side of the housing-side partition walls engages in each case a bottom slit extending in the transverse direction of the bottom wall so that a substantial lengthening of the creepage distance is provided because the creepage distance is now no longer formed solely by the plastic material of the housing but also beyond Is extended by the intermediate connection of an open bottom slot.
    There is thus the further advantage that a metal abrasion is removed from the chamber in that the metal abrasion is discharged outwards through the slots and the bottom-side openings so that the metal abrasion can not accumulate in the interior of the housing and lead to short circuits or short circuits Leakage currents.
    In contrast to the prior art, the creepage distance is no longer formed solely by the fact that the housing-side partition wall is directly adjoining the bottom wall of the housing, but slot-like recesses are provided in the bottom wall on the bottom side of the housing- , So that the creepage distance formed thereby is extended by five to ten times as compared with the prior art.
    [0028] In order to improve the dielectric strength of a housing with different potentials carrying terminal crucial.
    [0029] advantage of the inventive measure is the one hand, the improvement of the dielectric strength, and on the other hand can - at a constant dielectric strength as in the prior art - can be reduced, the dimension of the housing-side partition wall so that a total of a more compact and less slung small housing at the same dielectric strength as in the prior technology can be created.
    [0030] The invention is not restricted to the fact that the housing-side partition walls are integrally connected with the material of the plastic housing in the region of their lateral connections to the side walls of the housing. They can also be inserted into the housing as separately insertable partition walls, suitable slots being provided on the side walls of the housing. However, their ground-side faces are nevertheless freed by an approximately central engagement in the ground guards in the ground wall.
    In another embodiment, however, it is provided that the partition walls are integrally formed from the plastic of the housing and are each connected laterally to their vertical side walls integrally with the side walls of the housing.
    [0032] As a material for such a plastic housing, a highly resistant and heat-resistant plastic is preferred, such as, for example, PA6 or the like.
    According to the above description, the creepage distance, which is essentially air-extended and thereby lengthened, is in each case formed by recesses (ie bottom slits passing through the bottom wall of the housing) which are arranged to the left and right of the respective housing-side partition wall.
    In addition, the creepage distance undergoes a further extension in that it is passed over the front-side bottom side of the partition wall, which means that transverse slots are now arranged in the bottom wall of the housing, in each of which the bottom sides of the partition walls are spaced apart And lateral play.
    Furthermore, it is preferred if the creepage distance is formed in each case by lateral elevation elevations in the region of the bottom wall of the housing, in particular in the region of the slot limitation Is reached.
    [0036] The slot width into which the respective bottom sockets of the partition walls engage can be designed differently. The slot width can extend transversely across the entire bottom wall of the housing of the terminal block in a uniform width.
    [0037] In another embodiment, it may be provided that the length of the slots is shorter than the transverse extent of the bottom wall; And in a third embodiment, it can be provided so that the slot length is designed to be shortened.
    Accordingly, the following possibilities are claimed: 1. The slot length extends over the entire width of the housing-side partition, 2. The slot length is interrupted in the region of its longitudinal extent. 3. The length of the slot in the bottom wall is shorter compared to the length of the partition wall. 4. The slit width does not have to continue uniformly along its longitudinal extent; It can also be modeled and - as viewed in the longitudinal direction - have different widths.
    A further advantage with respect to the relief of the housing-side partition walls in the region of the bottom wall of the housing has been found in such a way that harmful deposits are now avoided at the bottom-side connections of the partition walls with respect to the floor walls of the housing, as is known in the prior art. Any deposits in the chambers, which could result from chip-lifting actuation of the terminals or the conductors clamped there, are discharged to the outside through the bottom-side slots in the housing base.
    Likewise, dust particles or other deposits are discharged reliably from the individual compartments separated by the partition walls and can not form dangerous short-circuit bridges on the bottom side of the partition walls in the direction of the bottom wall of the housing because precisely these locations are disclosed according to the invention.
    A further advantage of the relief of the housing-side partition walls towards the bottom side of the housing has been found in such a way that now aeration along the partition walls from the bottom side ascending upwards to the cover of the housing and through this cover of the housing is possible is.
    Thus, a forced ventilation of the chambers of the clamping block is made possible, ie the interior of the clamping block is subjected to a thermally induced forced ventilation, and the clamps arranged therein are additionally cooled.
    By this cooling effect, the dielectric strength is further improved because the plastic cooled by thermal has a better dielectric strength than comparatively a non-cooled plastic of the housing and partition walls.
    [0044] The thermal expansion of the heat exchanger also provides the advantage that there is still an additional scavenging effect in the region of the partition walls, since the air flowing upwards thermally cleans the side surfaces of the respective partition wall freely, and particles adhering thereto, which impair the dielectric strength Could be removed.
    In addition to thermally induced cooling, it is also provided in another embodiment of the invention that such a terminal block is arranged in a forced-air-actuated control cabinet which is ventilated with a separate fan. Such a forced ventilation also results in an air inlet at the bottom side of the terminal block over the cross-section slots according to the invention in the bottom side, and overflows the partition walls arranged there in the housing.
    In addition, the stability of the housing is also improved since, because of the cooling of the plastic parts, the housing has improved stability, and thus also the positioning elements which hold the clamps in position and prestressing have a longer service life.
    The higher the temperature, the faster the aging process of the plastic takes place, and according to the invention, a substantial extension of the life of the plastic takes place by the cooling of the plastic housing. The higher the temperature, the higher the power loss.
    [0048] The housing is more dimensionally stable as a result of the cooling, since it can not warp due to temperature.
    The clamps used are preferably made of a conductive metal material, in particular an aluminum alloy or of copper or brass.
    The subject matter of the present invention results not only from the subject matter of the individual patent claims, but also from the combination of the individual patent claims among themselves.
    All the disclosures and features disclosed in the documents, including the summary, in particular the spatial configuration shown in the drawings, are claimed as essential to the invention insofar as they are novel, individually or in combination, in comparison with the state of the art.
    [0052] As far as individual objects are referred to as "essential to the invention" or "important", this does not mean that these objects necessarily have to form the subject of an independent claim. This is determined solely by the respectively applicable version of the independent patent claim.
    BRIEF DESCRIPTION OF THE DRAWINGS [0053] The invention is explained in more detail below with reference to drawings which illustrate only one embodiment. Further features and advantages of the invention which are essential to the invention are evident from the drawings and their description.
    [0054] FIG.
    FIG. 1: Longitudinal section through the clamping block along the line II in FIG. 2
    FIG. 2: the top view of the housing in the direction of the arrow II in FIG. 1
    FIG. 3: the side view of the housing in the direction of the arrow III in FIG. 2
    FIG. 4: the side view of the housing in the direction of the arrow IV in FIG. 3 and in FIG. 2
    FIG. 5 is a plan view of the bottom soap of the housing in the direction of the arrow V in FIG. 1 in a first embodiment
    FIG. 6 shows the same representation as FIG. 5 in a second embodiment
    FIG. 7 is a detail view in section according to the view VII in FIG. 1 in a first embodiment
    FIG. 8 is a detail view of FIG. 1 modified as compared to FIG. 7
    FIG. 9 is a detailed sectional view taken along the line IX - IX in FIG. 2. The terminal block 1 according to the invention essentially consists of a self-contained housing 9 which essentially consists of a bottom wall 10 and vertical side walls 11 integrally connected thereto , Which pass to the left and right respectively in end walls 12. The front end wall 12 is arranged on the front introduction side 7, a rear wall 13 being arranged opposite the rear side, on which a rear insertion side 8 is arranged.
    In the embodiment shown, the terminal block 1 is designed as an energy meter connection terminal block, but the invention is not restricted. Such an energy meter terminal block serves to clamp the electrical conductors of a current supply on its one insertion side 7 clampingly and on the other introduction side 8 to clamp the counter connecting pins which are connected directly to the energy meter.
    The housing 9 is covered in a sealed manner from above by a cover 2 made of plastic which engages with an encircling edge 6 in an upwardly open edge 14 so as to provide a sealed connection between the cover 2 and the walls of the housing 9. [ form.
    According to FIG. 2, a series of insertion slots 5 are arranged in the cover 2 parallel to one another and at a mutual distance from one another, which serve for the introduction of knife contacts of a bridging device (not shown).
    Furthermore, a number of clamping screws 3 are provided which allow access to the clamps 15, 16 arranged in the interior of the housing 9, with the release of ventilation openings, which are therefore designed as larger-dimensioned holes 4, to the positions shown in FIGS Terminals on the upper side.
    The drive openings 21 can, for example, be designed as Allen bores or Torx openings or slot openings and they are actuated with a tool which passes through the bores 4 so as to actuate the clamping part 20 of the respective clamp 15,
    On the one connection side 7, the connection openings 18 arranged there are covered by a protective collar 17. Accordingly, only the lower part of the respective clamp 15 can be seen.
    The clamping part 20, which can be actuated in each case, has an indentation 22 on the bottom side which is intended for clamping a wire conductor which is inserted into the clamping space 23 of the clamp 15, 16 and clamped there by means of the clamping part 20.
    The terminals 15, 16 are designed either as a single terminal or as a double terminal. The individual terminals are designated by reference numeral 15, while in FIG. 1, double clamps 16 are also provided on the right-hand side which electrically connect two individual clamps together.
    The recess 19 is the thread for the clamping part 20.
    It is also added that the electrical conductors are inserted into the connection space of the terminals 15, 16 via the insertion cross-section 29.
    It is important that the housing 9 consists of a number of chambers 25 which are mutually parallel and separated from one another and which are electrically insulated from one another by partition walls 26.
    The upper end face of the partition walls 26 is received by a labyrinth guide 28 on the underside of the cover 2, so that a creepage path there is avoided.
    The partition walls 26 preferably consist of the same electrically insulating plastic material as the material of the housing 9 and are connected in a material-integral manner to the respective side walls of the housing 9 via vertical connections 27.
    FIG. 6 shows by way of example that the connections 27 in each case are integrally connected to the end wall 12 and the rear wall 13.
    The bottom side 30 of the respective clamp 15, 16 is placed on the bottom side of the bottom wall 10 via punctual supports.
    After these supports 47 are only present in a point-by-point manner, free spaces 48 which are directed in the transverse direction are produced between these supports 47, so that the bottom sides 30 of the clips 15, 16 are also vented.
    For the positioning of the respective clamp 15, 16 in the associated chamber 25 in the clamping block 1, raised, comb-like positioning webs 32 are arranged on the bottom wall 10 which extend into corresponding longitudinal grooves 31 running in the same direction on the bottom side 30 of the respective clamp 15, 16.
    The width of the bottom-side positioning ribs 32 is narrower than the width of the longitudinal grooves 31 arranged in the bottom side 30 of the clamps 15, 16, so that they engage with play there.
    The play is selected in such a way that the left side wall 34 a of the clamp 15 rests against the left side wall 33 of the position web 32 in FIG. 7 and provides an exemption 35.
    In the event that a bridging tool with its blade contacts is inserted into the insertion slots, a resilient contact pressure from the side wall occurs, due to the inserted blade contact of a greater thickness, to a resilient biasing force of the terminals 15, 16 against the insertion of a blade contact 38 of the respective clamps 15, 16 to the side wall of the blade contact inserted into the insertion slots 5.
    7 shows, as an example, that the partition wall 26 extends with the same width into the bottom side 43, and that the bottom side 43 of the respective partition wall extends in a transversely extending slot 39, which according to FIG Length of the partition at the bottom side.
    [0077] The invention is not limited to this.
    6 shows that the length of the slot 39 'can also be shorter than the length of the partition wall 26, so that the partition wall 26 is only exposed in a shorter region in the region of the slot 39'.
    Furthermore, FIG. 5 shows that it is not necessary for the solution if the slit width of a slot 39 extends uniformly over the entire bottom-side transverse extent of the partition 26.
    5 shows that the partition wall 28 can have thickenings 36 which increase the thickness of the partition wall 26 at its bottom side 43, and that the thickenings 36 are, however, selected such that they can also be filled with air left and right in the Slot 39.
    This is shown in FIG. 9, where the thickenings 36 fill the slot width only in points, in each case, in order to make possible a correct positioning of the partition walls in the region of the slot 39 with less play.
    It is, of course, also possible, in another embodiment, that the partition walls can be designed with a uniform thickness, as shown in FIG. 7, for the position-fixing or positioning of the partition walls, and the thickenings 36 have each formed in the region of a slot, To enable positioning in the transverse slot 39.
    It is not shown in the drawing that the longitudinal extent of the slot 39 can not necessarily be designed as a straight line. It may also be in the form of a wave or it may also have a non-uniform thickness, such as a zigzag or the like.
    Likewise, this applies analogously to the bottom side 43 of the partition 26, which can also have projections, grooves or spacers for positional positioning.
    7, an extended creepage distance 50 is formed by the fact that on the side wall of the respective clamp 15, the side wall is preferably designed as an oblique wall 42, which adjoins a second, Obliquely formed edge elevation 41 of the bottom wall 10 of the housing.
    The edge elevation 41 preferably extends over the entire width of the bottom wall 10 of the housing so that the clamp 15 with its inclined wall 42 rests against the edge elevation 41 over its entire transverse extent.
    The invention is not limited to the formation of an inclined wall 42 in the region of the bottom side 30 of the clamp 15, 16. Instead of the oblique wall 42, a vertically extending wall can also be provided.
    7 shows the long creepage distance which is reached thereby, which first passes through the transverse slot 39 from the edge elevation 41, extends over the bottom side 43 of the partition wall 26 with a relatively large length, Adjoining adjacent slot 39 in the direction towards the opposing clamp 15. The two slots 39 arranged on the left and right of the partition 26 unite in a bottom slit 40 bridging the bottom side 43 of the partition wall 26.
    Thus, not only is a material-separated creepage distance, which is formed solely by plastic material, but a combination of a creepage distance 50 formed by plastic and formed by air sections.
    8 also shows that the foot-side dimension of the partition 26 does not necessarily have to be straight, as shown in FIG. 7, but the partition wall 44 can also taper, so that an extended creepage distance with slots 39 Enlarged slot width.
    [0091] Thus, the creepage distance is further extended.
    As an additional advantage of an air-supported creepage distance 50, it is shown in FIGS. 8 and 9 that an air stream 45 also flows through the bottom-side slots 39 due to the thermal heating of the terminals 15, 16 and flows on the side walls of the partition wall 26 , Where the airflow leaves the cover-side openings 4, 5 in the direction of the arrow 46.
    This is shown schematically in FIG. 2 as the tips of an arrow.
    The slots 39, which result as extensions on the bottom soap 43, 44 of the partition walls 26, form through-going bottom slots 40, which means that the end face of the partition wall does not extend as far as the edge of the wall of the partition wall Bottom wall 10, but behind it remains behind. This results in the bottom slots 40, which connect the adjoining slots 39 to one another.
    It is also stated that the slots 39 of increased width are reduced in longitudinal slots 37 of reduced width along the partition walls 26. This is achieved by means of a gap tapering of the slots 39, because the width of the terminals 15, 16 is correspondingly dimensioned.
    The advantage of the measures according to the invention is therefore an improvement in the dielectric strength in conjunction with a forced ventilation of the partition walls 26 of a housing 9 of a terminal block 1, which in turn reduces the temperature inside the housing 9 and the forced ventilation leads to a further improvement in the dielectric strength ,
    Drawing insert 1 Clamping block 2 Cover 3 Clamping screw 4 Bore (for 2) 5 Insertion slot 6 Edge (from 2) 7 Insertion side (front) 8 Insertion side (rear) 9 Housing 10 Floor wall 11 Side wall 12 End wall 13 Back wall 14 Edge (from 9) 15 Terminal (single) 16 Terminal (double) 17 Protective collar 18 Connection opening 19 Recess 20 Clamping part 21 Drive opening 22 Release 23 Clamping space 24 Side 25 Chamber 26 Partition 27 Connection 28 Labyrinth guide 29 Insertion cross section 30 Bottom side (from 15) 31 Longitudinal groove 32 Positioning web 33 Side wall (from 32) 34 Side wall (from 31) a, b 35 Excess 36 Thickening (from 26) 37 Longitudinal slit 38 Side wall (from 15) 39 Slit (from 37) 39 '40 Slit bottom 41 Sloping wall 42 Sloping wall 43 Sliding wall 43 Sliding wall 43 Of 26) 45 Airflow
    权利要求:
    Claims (9)
    [1] 1. Terminal block (1) for electrical energy meter comprising a group consisting of an electrically insulating material housing (9) having side and end walls (11-13) and the housing downwardly bounding bottom wall (10), and a lid (2) , the sealed housing (9) upwardly closes, wherein the housing (9), a number of by partition walls (26) divided and electrically isolated chambers (25) are arranged, in each of which, a certain electric potential leading terminal (15,16) is arranged, wherein the partitions (26) at its foot-side termination side to the bottom wall (10) of the housing (9) in the region of slots (39, 40) are free, characterized in that the partition walls (26) to greater their foot-side bottom side (43) in which the bottom wall by breaking (10) of the housing (9) bottom slits (40) at least partially with lateral play with the formation of air-conducting, exempted slots (39) engage width.
    [2] 2. Terminal block according to claim 1, characterized in that the partition walls (26) are integrally connected to the side walls (11) of the housing (9).
    [3] 3. Terminal block according to claim 1, characterized in that the partition walls (26) detachably connect to the side walls (11) of the housing (9) by means of slide-in guides.
    [4] 4. The clamping block as claimed in claim 1, characterized in that on the bottom wall (10) inwardly directed, comb-like edge elevations (41) are formed which form the lateral boundary of the bottom-side slots (39, 40).
    [5] 5. Terminal block according to claim 1, characterized in that the bottom-side slots (39, 40) extend over the entire bottom-side length of the partition wall (26).
    [6] 6. Terminal block according to claim 1, characterized in that the bottom-side slots (39, 40) extend only over part of the bottom-side length of the partition (26).
    [7] 7. The clamping block as claimed in claim 1, characterized in that thickenings (36) which are arranged in the vertical direction and are arranged at a mutual distance from one another are arranged on the surface of the partition wall (26), which are arranged either with lateral play or distance- Engage the bottom slot (39).
    [8] 8. Terminal block according to claim 1, characterized in that the bottom-side slots (39, 40) produce a forced ventilation of the partition (26) and a rinsing effect on the partition wall (26).
    [9] 9. The terminal block as claimed in claim 1, wherein the bottom-side slots (39, 40) generate a cooling of the housing (9) and the clamps (15, 16).
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    同族专利:
    公开号 | 公开日
    AT517726A2|2017-04-15|
    AT517726B1|2018-04-15|
    DE102015013011A1|2017-04-13|
    AT517726A3|2017-09-15|
    CH711634B1|2019-01-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2740001A|1952-07-19|1956-03-27|North American Aviation Inc|Terminal block cover|
    CH344463A|1956-04-25|1960-02-15|Renfer Erwin|Junction box for electrical installations|
    US6168460B1|1998-04-07|2001-01-02|General Electric Company|A-base terminal block assembly|
    DE10216913A1|2001-09-12|2003-05-22|Hager Electro Gmbh|Connector strip for current meters, has at least one clamp connection element that allows variation in position of contact pin on strip or/and contact pin diameter|
    DE102011015697B4|2011-03-31|2015-03-26|Klaus Bruchmann Gmbh|Counter switching block for an electricity meter and devices with a counter switching block|
    WO2013058116A1|2011-10-17|2013-04-25|日産自動車株式会社|Terminal block|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102015013011.0A|DE102015013011A1|2015-10-07|2015-10-07|Electrical terminal block with open creepage distance|
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