CN108475861B - Enclosure for electrical connection of high voltage cables - Google Patents
Enclosure for electrical connection of high voltage cables Download PDFInfo
- Publication number
- CN108475861B CN108475861B CN201780007101.3A CN201780007101A CN108475861B CN 108475861 B CN108475861 B CN 108475861B CN 201780007101 A CN201780007101 A CN 201780007101A CN 108475861 B CN108475861 B CN 108475861B
- Authority
- CN
- China
- Prior art keywords
- support plate
- electrical connection
- capsule
- screw
- enclosure
- 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.)
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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
- 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
- H01R9/223—Insulating enclosures for terminals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
- H01R11/12—End pieces terminating in an eye, hook, or fork
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
- H01R4/34—Conductive members located under head of screw
Landscapes
- Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
Abstract
The invention relates to an enclosure (10) for the electrical connection of at least two high-voltage cables (C1, C2, C3) each comprising at least two insulated electrically conductive wires (F1+, F1-, F2+, F2-, F3+, F3-) of different electrical phases (+, -), the free end of each electrical conductor being provided with a terminal (B1+, B1-, B2+, B2-, B3+, B3-) for electrical connection through a hole, the enclosure comprising an electrically insulating support plate (18) supporting parallel screws (V +, V-) made of electrically conductive material, each of the parallel screws being equipped with axial tightening means (E +, E-), characterized in that the enclosure comprises a single first screw (V +) for the electrical connection of all the electrically conductive wires (F1+, F2+, F3+) of a given first phase, and a single second screw (V-) for the electrical connection of all these electrically conductive wires (F1-, F2-, F3-) having a given second phase.
Description
Technical Field
The present invention relates to an enclosure for the electrical connection of a plurality of high voltage cables in the engine compartment of a motor vehicle. Recall that in the field of technology concerned, mainly in the field of motor vehicles, the high voltage ranges from 60 volts to 600 volts.
The invention relates in particular to a capsule for the connection of a plurality of different components belonging to, for example, cooling circuits (for example compressors and boilers), and a Power Electronics Block (PEB) which ensures the power electronics and in particular the inverter function for driving the machine and for converting the direct current power supply from one voltage level to another.
Background
Different designs of enclosures for the electrical connection of at least two high voltage cables, each comprising at least two insulated electrically conductive wires of different electrical phases, the free end of each electrical conductor being provided with an eyelet electrical connection terminal lug, are known, the enclosures comprising an electrically insulating support plate supporting parallel threaded rods made of electrically conductive material, each equipped with axial clamping means.
According to these designs, for example for the electrical connection of three cables each comprising two electrical conductors, a support plate made of insulating material supports six screws each provided with a nut for axially clamping a eyelet terminal lug, i.e. each free end of the electrical conductor is fixed and individually electrically linked to the associated screw.
In order to link together the three conductors of the same electrical phase, the enclosure comprises means for electrically connecting the three associated screws, which are for example copper bars (also called "busbars") of sufficient section and each comprise a hole through which the screw passes, the eyelet of the electrical connection terminal lug being clamped in electrical contact with the conductive bar(s) by means of a nut.
This design is complex, involves a large number of parts to be assembled, and is also very cumbersome due to the need to arrange the conductive strips in such a way as to also avoid short-circuits and arcing phenomena between the different phases.
It is more bulky if it is desired to combine all "outputs" of cables from the enclosure together into the same area and/or face of the enclosure for ease of routing in the engine compartment.
Disclosure of Invention
To this end, the invention proposes a capsule of the type mentioned previously, characterized in that it comprises: a single first screw for electrical connection of all electrically conductive wires having the same first phase, and a single second screw for electrical connection of all electrically conductive wires having the same second phase. The capsule further comprises a fixing plate for immobilizing the high-voltage cable, which is electrically conductive and is connected to a metal tongue passing through a slit in the bottom wall of the capsule to ensure the earthing function of the capsule.
According to other features of the invention:
each screw extends axially through the support plate and each of the two sections of the screw is equipped with axial clamping means;
-a bottom wall of the enclosure orthogonal to the support plate, the bottom wall comprising an aperture for introducing a high voltage cable;
-said bottom wall is arranged at the end of the support plate and the screws are arranged near the other end of the support plate;
the enclosure comprises means for fixing the cables to the support plate;
-said fixing means are produced in an electrically conductive material and are electrically linked to the outside of the capsule to allow the latter to be grounded;
-the axial clamping means is a nut;
the screw belongs to a screw;
-the axial clamping means is the head of the screw;
-the orthogonal bottom wall is made in a single piece with the support plate by moulding in plastic material.
Drawings
Other features and advantages of the present invention will become apparent upon reading the following detailed description, and for understanding thereof, reference will be made to the accompanying drawings, in which:
fig. 1 is a perspective view of an exemplary embodiment of a connection enclosure according to the present invention;
figure 2 is a view from below of the enclosure of figure 1 without the high voltage cable shown;
FIG. 3 is a front perspective view of the capsule of FIG. 1 without its cap;
figure 4 is a rear perspective view of the capsule of figure 3;
figure 5 is a cross-sectional view of the capsule of figures 3 and 4 through a transverse vertical plane.
Detailed Description
In the following description, expressions such as "axial", "transverse" and "vertical" orientation will be used in a non-limiting manner with reference to the dihedron (L, T, V) represented in the figures and to the definitions given in the description, and without reference to the earth's gravity.
In the following description, the same reference numerals indicate the same or functionally similar parts.
Fig. 1 shows an electrical connection enclosure 10 consisting essentially of a body 12 and a cap or lid 14.
The enclosure 10 here allows simultaneous electrical connection of three high-voltage cables Ci (C1, C2 and C3).
Each cable Ci here comprises two electrical conductors of different phases Fi + and Fi-.
Thus, the first cable C1 includes two conductors F1+ and F1-, while the second cable C2 includes two conductors F2+ and F2-, and the third cable C3 includes two conductors F3+ and F3-.
Each cable Ci is here of similar design and comprises an outer sheath Gi in which two electrical conductors Fi + and Fi-are housed.
Each conductor Fi + and Fi-is electrically insulated from the associated other electrical conductor Fi-, Fi + and comprises, at its free end arranged inside the enclosure 10, a respective connection terminal, here in the form of an eyelet electrical connection terminal lug Bi +, Bi-, respectively.
Each terminal tab Bi + is electrically linked to the conductive core of the associated electrical conductor Fi +, while each terminal tab Bi-is electrically linked to the conductive core of the associated electrical conductor Fi-.
The body 14 is a moulded part made of an electrically insulating plastics material and basically comprises a vertical support plate 18, and a horizontal bottom wall 20.
The support plate 18 includes a front face 22 oriented vertically and longitudinally, and a parallel and opposite rear face 24.
The support plate 18 is of generally rectangular form bounded by a horizontal top edge 28 and by two opposing vertical edges 30 and 32.
The bottom wall 20 is delimited by a horizontal top surface 34 and by a parallel and opposite bottom surface 36 constituting the supporting and fixing surface of the electrical connection enclosure 10.
For such fixing (for example, to a body element of a motor vehicle), the bottom wall 20 comprises two opposite longitudinal lugs 38.
The support plate 18 is laterally rearwardly offset relative to a central vertical plane of the bottom wall 20.
The bottom wall comprises three vertical through holes Ti, each of which is dimensioned to allow the introduction of an associated cable Ci.
At the level where the support plate 18 is connected to the top surface 34 of the bottom wall 20, the support plate comprises a front bottom block 40 in the form of an overthickness, and a rear bottom block 42 in the form of an overthickness.
The front block 40 includes a semi-cylindrical concave recess L1 capable of receiving a facing portion of the cable C1, and a semi-cylindrical concave recess L2 capable of receiving a facing portion of the cable C2. The two recesses L1 and L2 are longitudinally and laterally offset with respect to each other.
The rear block 42 includes a semi-cylindrical concave recess L3 capable of receiving a facing portion of the cable C3. The recess L3 is longitudinally centered.
As can be seen by way of example in fig. 3, a fixing plate (stop plate) 44 can be provided for immobilizing and fixing the cables C1 and C2 by means of screws 46, in order to avoid any damaging pulling of the connecting terminal lugs Bi + and Bi-. A similar arrangement (not shown) may be provided on the rear block 42. The fixing plate 44 may be electrically conductive and ensures the grounding or earth function of the capsule via a metal tongue 50 which passes through a slit 52 in the bottom wall 20.
In accordance with the teachings of the present invention, support plate 18 supports a single conductive stud V + for electrical connection of all conductors Fi +.
In accordance with the teachings of the present invention, the support plate 18 supports a single conductive screw V-for electrical connection of all of the conductors Fi-.
The two screws V + and V-are positioned in the vicinity of the top edge 28 of the support plate 18.
The two screws V + and V-are longitudinally offset with respect to each other. Screw V + is substantially aligned with hole T1, and screw is substantially aligned with hole T2.
Each screw V + extends transversely through the support plate 18 and therefore comprises opposite threaded front and rear sections, each of which is able to pass through the eyelet of a corresponding and associated connection terminal lug Bi + and Bi "of a conductor Fi + and Fi-.
To ensure reliable electrical contact and fixation, each screw section receives an axial clamping nut E +, E-.
According to the compact and small-volume design shown in fig. 3, two cables C1 and C2 are arranged in front of the front face 22, with their terminal lugs B1+ and B2+ fixed to the screw V + and their terminal lugs B1-and B2-fixed to the screw V-.
A third cable C3 is arranged in front of the rear face 24, with its terminal lug B3+ fixed to the screw V + and its terminal lug B3-fixed to the screw V-.
All connections of the three cables C1, C2 and C3 are thus ensured by means of only two screws, and here by means of only four clamping nuts.
Again with two screws V + and V-and four clamping nuts, two of the four cables can be easily connected to the front face 22 and two to the rear face 24, by making very slight modifications to the body 12 (not shown), but within the same volume.
These screws may each be associated with a pair of nuts as represented, or each belong to a screw which is then associated with a single clamping nut.
Each screw may be screwed into a hole in the support plate 18 or fixed thereto in an insert by over-molding.
Claims (10)
1. An enclosure (10) for the electrical connection of at least two high-voltage cables (C1, C2, C3) each comprising at least two insulated electrically conductive wires (F1+, F1-, F2+, F2-, F3+, F3-) of different electrical phases (+, -) each provided at its free end with an apertured electrical connection terminal lug (B1+, B1-, B2+, B2-, B3+, B3-) comprises an electrically insulating support plate (18) supporting parallel screws (V +, V-) made of electrically conductive material, each of which is equipped with axial clamping means (E +, E-),
wherein the capsule comprises a single first screw (V +) for the electrical connection of all the electrically conductive lines (F1+, F2+, F3+) having a same first phase and a single second screw (V-) for the electrical connection of all the electrically conductive lines (F1-, F2-, F3-) having a same second phase,
characterized in that it comprises a fixing plate (44) for immobilizing the high-voltage cables (C1, C2), which is electrically conductive and is connected to a metallic tongue (50) passing through a slit (52) in the bottom wall (20) of the capsule to ensure the grounding function of the capsule.
2. The capsule according to claim 1, characterized in that each screw (V +, V-) extends axially through the support plate (18), and in that each of the two sections of the screw (V +, V-) is provided with axial clamping means (E +, E-).
3. The enclosure according to claim 1, wherein the bottom wall (20) is orthogonal to the support plate (18) and comprises apertures for the introduction of high voltage cables (C1, C2, C3).
4. The capsule as claimed in claim 3, characterized in that said bottom wall (20) is arranged at an end of the support plate (18) and in that the screws (V +, V-) are arranged near the other end of the support plate (18).
5. The enclosure of any of the preceding claims, wherein said fixing plate (44) is used to fix the high voltage cables to the support plate (18).
6. The capsule according to claim 5, characterised in that the fixing plate (44) is electrically connected to the outside of the capsule (10) to allow the latter to be earthed.
7. The capsule according to any of claims 1 to 4, characterized in that the axial clamping means are nuts (E +, E-).
8. The capsule according to any of claims 1 to 4, characterized in that the screws (V +, V-) are in the form of screws.
9. The capsule according to claim 8, characterized in that the axial clamping means is the head of the screw.
10. The capsule according to claim 3, characterised in that said bottom wall (20) is made in a single piece with the support plate (18) by moulding in a plastic material.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1650447A FR3046882B1 (en) | 2016-01-20 | 2016-01-20 | "HOUSING FOR THE ELECTRICAL CONNECTION OF HIGH VOLTAGE CABLES" |
| FR1650447 | 2016-01-20 | ||
| PCT/FR2017/050078 WO2017125665A1 (en) | 2016-01-20 | 2017-01-13 | Enclosure for electrical connection of high-voltage cables |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108475861A CN108475861A (en) | 2018-08-31 |
| CN108475861B true CN108475861B (en) | 2020-06-05 |
Family
ID=55953208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780007101.3A Active CN108475861B (en) | 2016-01-20 | 2017-01-13 | Enclosure for electrical connection of high voltage cables |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3406001A1 (en) |
| CN (1) | CN108475861B (en) |
| FR (1) | FR3046882B1 (en) |
| WO (1) | WO2017125665A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2023124027A (en) * | 2022-02-25 | 2023-09-06 | トヨタ自動車株式会社 | High voltage cable connection structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5649841A (en) * | 1996-01-16 | 1997-07-22 | Alcoa Fujikura Ltd. | Vehicular electrical access box |
| US6402541B1 (en) * | 1999-08-04 | 2002-06-11 | Conception Et Developpement Michelin S.A. | Electric connector using elements penetrating the insulation |
| US7351123B1 (en) * | 2007-02-21 | 2008-04-01 | Devin Winiecke | Electrical terminal splice |
| CN204179292U (en) * | 2014-09-05 | 2015-02-25 | 北京汽车股份有限公司 | A kind of bonding terminal and automobile |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB574323A (en) * | 1944-02-22 | 1946-01-01 | Lucien Lacoste | Improved connecting device for electrical cables |
| US20080026645A1 (en) * | 2006-07-26 | 2008-01-31 | Motorola, Inc. | Connector adaptor and method |
| US7527523B2 (en) * | 2007-05-02 | 2009-05-05 | Tyco Electronics Corporation | High power terminal block assembly |
| KR101001576B1 (en) * | 2008-12-09 | 2010-12-17 | 주식회사 두원전자 | Invertor Connector Assembly For Electric Compressor |
| US8730639B1 (en) * | 2010-07-13 | 2014-05-20 | Raycap, S.A. | Overvoltage protection for remote radio head-based wireless communication systems |
-
2016
- 2016-01-20 FR FR1650447A patent/FR3046882B1/en active Active
-
2017
- 2017-01-13 EP EP17706526.5A patent/EP3406001A1/en not_active Withdrawn
- 2017-01-13 WO PCT/FR2017/050078 patent/WO2017125665A1/en active Application Filing
- 2017-01-13 CN CN201780007101.3A patent/CN108475861B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5649841A (en) * | 1996-01-16 | 1997-07-22 | Alcoa Fujikura Ltd. | Vehicular electrical access box |
| US6402541B1 (en) * | 1999-08-04 | 2002-06-11 | Conception Et Developpement Michelin S.A. | Electric connector using elements penetrating the insulation |
| US7351123B1 (en) * | 2007-02-21 | 2008-04-01 | Devin Winiecke | Electrical terminal splice |
| CN204179292U (en) * | 2014-09-05 | 2015-02-25 | 北京汽车股份有限公司 | A kind of bonding terminal and automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017125665A1 (en) | 2017-07-27 |
| EP3406001A1 (en) | 2018-11-28 |
| CN108475861A (en) | 2018-08-31 |
| FR3046882A1 (en) | 2017-07-21 |
| FR3046882B1 (en) | 2018-01-26 |
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