CN114079194A - Device for sealing the passage of an electrical line relative to a housing element and method for producing the same - Google Patents

Device for sealing the passage of an electrical line relative to a housing element and method for producing the same Download PDF

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Publication number
CN114079194A
CN114079194A CN202110926246.1A CN202110926246A CN114079194A CN 114079194 A CN114079194 A CN 114079194A CN 202110926246 A CN202110926246 A CN 202110926246A CN 114079194 A CN114079194 A CN 114079194A
Authority
CN
China
Prior art keywords
sealing
carrier element
carrier
electrical line
electrical
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.)
Pending
Application number
CN202110926246.1A
Other languages
Chinese (zh)
Inventor
弗洛里安·罗厄摩尔斯贝格
托马斯·哈克尔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lisa Draexlmaier GmbH
Original Assignee
Lisa Draexlmaier GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lisa Draexlmaier GmbH filed Critical Lisa Draexlmaier GmbH
Publication of CN114079194A publication Critical patent/CN114079194A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/06—Hermetically-sealed casings
    • H05K5/069—Other details of the casing, e.g. wall structure, passage for a connector, a cable, a shaft
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5205—Sealing means between cable and housing, e.g. grommet
    • H01R13/5208—Sealing means between cable and housing, e.g. grommet having at least two cable receiving openings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/08—Distribution boxes; Connection or junction boxes
    • H02G3/088—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings or inlets
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

The invention relates to a device (100) for sealing a channel (108) of an electrical line (101) from a housing element (104) with a carrier element (102), wherein the carrier element (102) completely surrounds the electrical line (101) except in the region surrounding a fastening element, and wherein the fastening element is provided to electrically connect the electrical line (101) to a further electrical line with a further fastening element corresponding to the fastening element, and wherein a sealing element (103) is provided to seal the carrier element (102) from the housing element (104) in a fluid-tight manner when the housing element (104) is connected to the sealing element (103). The invention further relates to a method for producing a device (100) for sealing a channel (108) of an electrical line (101) from a housing element (104).

Description

Device for sealing the passage of an electrical line relative to a housing element and method for producing the same
Technical Field
The invention relates to a device for sealing a passage for an electrical line with respect to a housing element and to a method for producing a corresponding device.
In high voltage components, such as high voltage batteries, the electrical leads on the high voltage component housing must be sealed to prevent splashing, contamination, etc. to ensure reliable power supply of the high voltage component. If water spills enter the electrical leads within the high voltage assembly, power interruption and electrical shock hazards may result.
Background
US 2017250510 a1 shows a contact point with flat conductors, a contact part connected with the flat conductors in a connection area, conductors connectable with the contact part, a multi-shell housing covering the contact part and the connection area and being fastened to the flat conductors in a self-supporting manner by surrounding the flat conductors, wherein the housing is an injection-molded part with three at least openings, two for the flat conductors and one for the conductors, and the housing may be provided with a seal at least in a part of the sealed opening.
Disclosure of Invention
The object of the invention is therefore to provide a fluid-tight electrical line in a structurally simpler manner.
One aspect of the invention relates to a device for sealing a passage of an electrical line relative to a housing element with a carrier element which completely surrounds the electrical line except for a region surrounding a fastening element and which is provided to electrically connect the electrical line with a further fastening element corresponding to the fastening element. The device further has a sealing element which is provided to seal the carrier element in a fluid-tight manner with respect to the housing element when the housing element and the sealing element are connected together. In the context of the present patent application, an electrical line is understood to be each flexible or rigid electrical connection which is suitable for carrying an electrical current, which comprises, for example, a busbar in addition to a cable, and which can be connected together with another busbar or a cable as another electrical line by means of a fastening element. The device may have a plurality of electrical leads. In the case of a busbar as an electrical line, a threaded bushing can preferably be pressed in as a fastening element, whereby it can be electrically and mechanically connected to a further busbar by means of a screw as a further fastening element. It is likewise possible to fasten a bolt in the electrical line instead of a threaded bushing, in such a way that the electrical line can be connected to another electrical line.
The housing element is part of a housing for a high-voltage component, for example a high-voltage battery or a high-voltage switch box. The sealing element, which can be connected to the carrier element of the electrical line, seals the carrier element in a fluid-tight manner with respect to the housing element, in particular against splashing. The carrier element completely surrounds the electrical lines except for the region surrounding the fastening element, so that the direct region between the carrier element and the electrical lines is likewise sealed in a fluid-tight manner.
Furthermore, the carrier element can be injection-molded onto the electrical conductor. The support element can in particular be made of a plastic which is adhesive during application and subsequently hardens. The carrier element completely surrounds the electrical lines except for the region surrounding the fastening element, so that the tightness of the electrical lines with respect to the carrier element is ensured. Furthermore, the carrier element has a clip element which is injection-molded together during injection-molding of the carrier element. The counter element of the sealing element can be arranged as a clamping element of the carrier element, whereby the sealing element can be connected together with the carrier element by means of the clamping element. The carrier element can thereby be injection-molded over the longitudinal length of the electrical line to any desired extent.
Furthermore, the carrier element can be produced separately and can be connected to the electrical lines. For example, the carrier element can be manufactured as a separate injection-molded element. In order to connect the carrier element with the electrical line, the carrier element is pushed onto the electrical line. Before the carrier element is pushed onto the electrical conductor, an adhesive is applied, for example on the inner surface of the carrier element, so that an adhesive connection is established between the carrier element and the electrical conductor.
In a preferred embodiment, the sealing element is injection-molded onto the carrier element, wherein an adhesive material, for example a thermoplastic material, is applied as the sealing element onto the carrier element and subsequently hardened. The sealing element comprises a soft component to facilitate the application of the viscous material. After hardening, the injection-molded sealing element seals the passage of the electrical line in a fluid-tight manner with respect to the housing element.
In an alternative or further embodiment, the sealing element comprises a sealing ring which can be connected to the carrier element. The sealing ring is, for example, an O-ring and is placed on the carrier element, in particular in a predetermined recess of the carrier element. Furthermore, the sealing ring can be connected to the carrier element by means of a fastening element. For example, the carrier element can have a latching lug in the region of the connection of the carrier element to the sealing ring. The sealing ring can be connected to the carrier element in the connecting region by the latching element by means of the latching element engaging in a latching lug of the carrier element. Alternatively, the sealing ring can be glued to the carrier element.
In a further embodiment, a further sealing element is arranged in the recess region around the fastening element and is provided for sealing the recess region. The further sealing element can be injection-molded onto the recess region or connected to the recess region as a separate component. For example, the further sealing element can be embedded in the recess region and connected to this recess region by means of a connecting agent (e.g. an adhesive). The further sealing element seals in the recess region in a fluid-tight manner, for example against splashing.
Furthermore, the carrier element is arranged to completely surround the plurality of electrically conductive lines, which are electrically connected to one another, except in the region surrounding the fastening element. The carrier element thus comprises a plurality of electrical lines which can be arranged and fixed relative to one another within the carrier element, in particular by means of the guide element. For example, the carrier element comprises two electrical lines, wherein each of the two electrical lines is connected to the other electrical line by means of a fastening element. Here, the threaded bushing can be pressed into the electrical line. The other electrical conductor may be connected to the electrical conductor by means of a screw screwed into the threaded bushing.
Another aspect of the invention relates to a method of manufacturing a device for sealing a passage of an electrical lead relative to a housing element, the method comprising providing at least one electrical lead; a carrier element is arranged on the provided electrical conductor, wherein the carrier element completely surrounds the electrical conductor except for a region surrounding the fastening element, and the fastening element is provided to electrically and mechanically connect the electrical conductor to a further electrical conductor with a further fastening element corresponding to the fastening element.
Furthermore, the method comprises arranging a sealing element on the carrier element arranged on the electrical line and connecting the housing element with the arranged sealing element, wherein the sealing element is provided to seal a region between the carrier element and the electrical line in a fluid-tight manner.
For example, the electrical leads can be inserted into an injection molding machine. Subsequently, the carrier element is injection-molded on the electrical line by means of a first tool, in particular as an adhesive plastic which solidifies after hardening and forms the carrier element, so that the carrier element completely surrounds the electrical line except in the region surrounding the fastening element. After injection molding the carrier element on the electrical conductor, the sealing element can be injection molded onto the carrier element by means of a second tool. The plastic of the sealing element can be different from the plastic of the injection-molded carrier element. Finally, the housing element can be connected to the sealing element. For example, the housing element may be connected with the sealing element by means of a clip element. In this case, the housing element and the sealing element can have corresponding clamping elements, so that the housing element and the sealing element can be connected to one another.
Alternatively, the carrier element and the sealing element can be manufactured as separate components. The carrier element can be pushed onto the electrical conductor. The sealing element can be connected to the carrier element by, for example, applying an adhesive to the carrier element and placing the sealing element on the carrier element. When the sealing element is manufactured separately and connected together with the carrier element, it is likewise possible to injection mold the carrier element onto the electrical conductor.
The attachment of the sealing element and the carrier element can advantageously be realized in a two-component injection molding process (2-K-Spritzgussverfahren). When the carrier element is injection-molded onto the electrical conductor, the sealing element is made of a second material, for example a thermoplastic elastomer or silicone. The sealing element then abuts well against the housing element.
The sealing element is furthermore designed in multiple parts. For example, two "L-shaped" parts of the sealing element can be injection-molded onto the carrier element. The fluid-tight sealing can be further improved by the superposition of a plurality of sealing regions resulting from the multipart design of the sealing element.
Furthermore, arranging the sealing element on the carrier element comprises arranging a further sealing element in the region of the recess. A further sealing element can be injection-molded onto the recess region. Alternatively, the further sealing element can be produced separately and can be glued, for example, to the recess region.
Drawings
The invention is explained in more detail below on the basis of embodiments and the accompanying drawings, in which:
fig. 1 is a perspective view illustrating a device for sealing an electrical conductor channel with respect to a housing element with a carrier element according to an embodiment;
FIG. 2 is a perspective view showing a device for sealing an electrical conductor channel with respect to a housing element with a carrier element according to another embodiment;
FIG. 3 is a cross-sectional view showing a device for sealing an electrical conductor channel with respect to a housing element with a carrier element;
fig. 4 is a schematic diagram illustrating a method of manufacturing a device for sealing an electrical conductor channel with respect to a housing element.
The drawings are only schematic and serve only to explain the invention. Identical or functionally identical elements have the same reference numerals throughout.
Detailed Description
Fig. 1 shows a perspective view of a device 100 for sealing a channel 108 of an electrical line 101, 101a with a carrier element 102 relative to a housing element 104 according to an exemplary embodiment.
The two electrical lines 101 are completely surrounded by the carrier element 102 except in the region surrounding the fastening element 107. The carrier element 102 is injection molded onto the electrical line 101 or manufactured as a separate component. In the embodiment shown in fig. 1, the electrical leads 101, 101a are busbars. Accordingly, the threaded bushing 107 is pressed into the electrical lines 101, 101a as a fastening element. By means of the threaded bushing 107, the electrical conductor 101, 101a is electrically and mechanically connected with another electrical conductor, for example by means of a screw 106. At the carrier element 102, a sealing element 103 is arranged relative to the housing element 104 at the passage of the electrical lines 101, 101 a. The sealing element 103 is connected with the carrier element 102. For example, the sealing element 103 is injection molded onto the carrier element 102.
Alternatively, the sealing element 103 can be manufactured as a separate component and connected to the carrier element 102, for example by means of an adhesive.
By connecting the carrier element 102 to the electrical lines 101, 101a, the connection of the sealing element 103 to the carrier element 102 and the connection of the sealing element 103 to the housing element 104, the channels 108 of the electrical lines 101, 101a are sealed in a fluid-tight manner with respect to the housing element 104, in particular when the carrier element 102 and the sealing element 103 are injection-molded.
Fig. 2 shows a device for sealing the channel 108 of the electrical lines 101, 101a from the housing element 104 in a perspective view according to a further embodiment.
According to another embodiment, the cable termination sleeve 105 is fastened to the electrical conductors 101, 101a by means of screws 106. Thereby screwing the screw 106 into the threaded bushing 107 of the electrical conductor 101, 101 a. The cable termination sleeve 105 is arranged at the line end of another line.
Fig. 3 shows a sectional view of the device 100 for sealing the passage 108 of the electrical line 101 with the carrier element 102 relative to the housing element 104.
Fig. 4 shows a schematic representation of a method for manufacturing a device for sealing the passage 108 of the electrical line 101 with respect to the housing element 104.
In a first step (S1), at least one electrically conductive wire 101 is provided. For example, the electrical lead 101 is inserted into an injection molding tool. The electrical conductor 101 has a threaded bushing 107 pressed in as part of the fastening element.
In a second step (S2), the carrier element 102 is arranged at the provided at least one electrical conductor 101. The carrier element 102 completely surrounds the electrical conductor 101 except in the region around the threaded bushing 107.
The carrier element 102 can be injection molded onto the electrical line 101, for example. Alternatively, the carrier element 102 is manufactured as a separate component and connected together with the electrical leads 101. For this purpose, it is possible, for example, to push the carrier element 102 onto the electrical line 101 or to glue it to the electrical line 101.
According to a third step (S3), the sealing element 103 is arranged on the carrier element 102.
The sealing element 103 is injection-molded as an adhesive plastic onto the carrier element 102 and subsequently hardened. The carrier element 102 has an outer shape corresponding to the channel, at which outer shape a sealing element 103 is arranged on the carrier element 102 and connected together with the carrier element 102. Furthermore, the sealing element 103 may be manufactured as a separate component and connected together with the carrier element 102.
The sealing element 103 may be fastened to the carrier element 102, for example, by means of a clamping element. When the housing element 104 is connected to the sealing element 103, the carrier element 102 can be sealed in a fluid-tight manner with respect to the housing element 104 by means of the sealing element 103.
In the fourth step (S4), the case member 104 is connected to the seal member 103. The housing element 104 can be connected to the sealing element 103 by means of a clip element. The clamping element is thereby arranged on the housing element 104 in the region of the connection between the housing element 104 and the sealing element 103. The sealing element 103 has elements corresponding to the clamping elements in order to clamp the housing element 104 and the corresponding elements together and thereby connect the housing element 104 and the sealing element 103 together.
List of reference numerals
100 device
101. 101a electrical lead
102 load bearing element
103 sealing element
104 housing element
105 cable terminal sleeve
106 screw
107 threaded bushing
108 channels
S1 providing an electrical lead
S2 arrangement bearing element
S3 arrangement of sealing element
S4 connecting the shell element and the sealing element together

Claims (10)

1. A device (100) for sealing a passage (108) of an electrical line (101) with respect to a housing element (104) comprises
A carrier element (102) which completely surrounds the electrical line (101) except for a region surrounding a fastening element and which is provided to electrically connect the electrical line (101) to a further electrical line with a further fastening element corresponding to the fastening element,
a sealing element (103) which is provided to seal the carrier element (102) in a fluid-tight manner with respect to the housing element (104) when the housing element (104) is connected to the sealing element (103).
2. Device according to claim 1, characterized in that the carrier element (102) is injection-moulded onto the electrical conductor (101).
3. The device according to claim 1, wherein the carrier element (102) is manufactured separately and connected to the electrical conductor (101).
4. Device according to any one of the preceding claims, characterized in that the sealing element (103) is injection-moulded onto the carrier element (102).
5. The device according to any one of claims 1 to 3, wherein the sealing element (103) comprises a sealing ring connectable with the carrier element (102).
6. The device according to any of the preceding claims, characterized in that the sealing element (103) is arranged to at least partially surround the shape of the carrier element (102) corresponding to the channel (108) of the housing element (104).
7. A device according to any one of the preceding claims, wherein a further sealing element is arranged to surround the fastening element in a recess area and is provided for sealing the recess area.
8. A device according to any one of the preceding claims, characterised in that the carrier element (102) is arranged to completely enclose a plurality of electrically conductive wires (101) which are electrically connected to each other, except for the area surrounding the fastening element.
9. A manufacturing method for manufacturing a device (100) for sealing a channel (108) of an electrical lead (101) with respect to a housing element (104), the method comprising
Providing (S1) at least one electrical lead (101);
arranging (S2) a carrier element (102) on the provided electrical line (101), wherein the carrier element (102) completely surrounds the electrical line (101) except for an area surrounding the fastening element, and wherein the fastening element is arranged to electrically connect the electrical line (101) with a further electrical line with a further fastening element corresponding to the fastening element;
arranging (S3) a sealing element (103) on the carrier element (102) arranged on the electrical conductor (101), and
connecting (S4) the housing element (104) to the arranged sealing element (103), wherein the sealing element (103) is provided to seal a region between the carrier element (102) and the housing element (104) in a fluid-tight manner.
10. The method according to claim 9, wherein arranging (S3) the sealing element (103) on the carrier element (102) comprises arranging a further sealing element (103) in the indentation area.
CN202110926246.1A 2020-08-13 2021-08-12 Device for sealing the passage of an electrical line relative to a housing element and method for producing the same Pending CN114079194A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020121323.9A DE102020121323A1 (en) 2020-08-13 2020-08-13 DEVICE FOR SEALING AN ELECTRICAL CABLE PENETRATION TO A HOUSING ELEMENT AND METHOD OF MANUFACTURING THE DEVICE
DE102020121323.9 2020-08-13

Publications (1)

Publication Number Publication Date
CN114079194A true CN114079194A (en) 2022-02-22

Family

ID=80000477

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110926246.1A Pending CN114079194A (en) 2020-08-13 2021-08-12 Device for sealing the passage of an electrical line relative to a housing element and method for producing the same

Country Status (2)

Country Link
CN (1) CN114079194A (en)
DE (1) DE102020121323A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10117976A1 (en) 2001-01-25 2002-08-22 Siemens Ag Device for the passage of electrical lines through the wall of a fuel tank
US20060292913A1 (en) 2005-06-23 2006-12-28 Siemens Vdo Automotive Corporation Integrated direct fuel pump connector
DE102016103439B4 (en) 2016-02-26 2018-04-05 Lisa Dräxlmaier GmbH Contact point of a flat conductor

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Publication number Publication date
DE102020121323A1 (en) 2022-02-17

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