EP2795737A1 - Connector assembly with seal protection cap - Google Patents

Connector assembly with seal protection cap

Info

Publication number
EP2795737A1
EP2795737A1 EP12799559.5A EP12799559A EP2795737A1 EP 2795737 A1 EP2795737 A1 EP 2795737A1 EP 12799559 A EP12799559 A EP 12799559A EP 2795737 A1 EP2795737 A1 EP 2795737A1
Authority
EP
European Patent Office
Prior art keywords
connector
connector assembly
protection cap
seal protection
mate assist
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP12799559.5A
Other languages
German (de)
French (fr)
Other versions
EP2795737B1 (en
Inventor
Claudia Schulz
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.)
Delphi International Operations Luxembourg SARL
Original Assignee
Delphi International Operations Luxembourg SARL
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 Delphi International Operations Luxembourg SARL filed Critical Delphi International Operations Luxembourg SARL
Publication of EP2795737A1 publication Critical patent/EP2795737A1/en
Application granted granted Critical
Publication of EP2795737B1 publication Critical patent/EP2795737B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5213—Covers
    • 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
    • H01R13/5219—Sealing means between coupling parts, e.g. interfacial seal
    • 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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H01R13/62905—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances comprising a camming member
    • H01R13/62911—U-shaped sliding element

Definitions

  • the present invention relates to a connector assembly with a sealing member for sealing the connector assembly against environmental influences, as in particular moisture, when connected to a corresponding counter-connector and, in particular, to a seal protection cap for the protection of the sealing member, for example during handling and transport of the connector assembly.
  • a waterproof electrical connector that includes a main body housing with a through hole and a tubular connector seal made of an elastic member fitted around the circumference of the main body housing. The seal is pressed against the inner circumference wall of the housing of the counter- connector when the waterproof connector is mated. Further, a tubular sliding hood is installed to protect the seal during transport and handling before mating. The hood is slidable in the main body housing and is pushed away from the seal in the process of mating, such that the seal can come into contact with the housing of the counter-connector. This construction is rather complex and requires that the hood is arranged slidable. This can lead to problems during assembly, for example when the hood gets stuck.
  • the document US 2001/024908 A1 discloses a cap- shaped dustproof cover for a connector which is fitted over an outer periphery of a connector from a front side of the connector, so as to cover a front-end fitting surface of the connector.
  • the cover basically encases the whole connector housing and is therefore relatively big and expensive to produce.
  • a cylindrical electrical connector including a connector body and a seal protection cap.
  • the connector body includes a cap housing, a body and a concave fitting section provided with a circular seal.
  • the seal protection cap includes a front face plate and a protection section.
  • the front face plate is provided with an opening in order to allow a continuity check from a front face of the fitting section.
  • the protection section extends cylindrically from a peripheral edge of the front face plate along a side face of the fitting section, so as to cover the seal.
  • the seal protection cap is applied to the fitting section of the connector body so as to cover the seal.
  • the seal protection members of the prior art connector assemblies function generally satisfactory, there is still room for improvement.
  • the mating of the connector assembly with the corresponding counter-connector needs to be facilitated, in particular for large, complex and tight connector assemblies and corresponding counter-connectors.
  • Another important aspect is that, in the art, it often happens that the protection members are not removed before mating of the connector, whereby then forced mating of the connector and the corresponding counter-connector leads to damages on the seal protection cap, the seal and/or the connector assembly.
  • a connector assembly comprising a connector housing, a sealing member, a mate assist member, and a seal protection cap.
  • the connector assembly is an electrical connector assembly and the mating face is preferably provided in a rectangular shape.
  • the sealing member is provided for sealing the connector housing, for example against moisture, when connected to a corresponding counter-connector. Other environmental influences for which the sealing member may or may not provide protection may be liquids, humidity, fine particles, dirt or the like.
  • the sealing member may have all kinds of shapes, cross sections and materials, but is preferably provided with one or more elastic sealing lips that are pressed against a corresponding surface of the counter-connector.
  • the sealing member is preferably made from an inexpensive material, as for example a thermoplastic elastomer.
  • the mate assist member is associated with the connector housing for facilitating a mating of the connector housing with the corresponding counter-connector and can, for example, be provided in form of a mate assist lever or a mate assist slider or similar as it is known to the skilled person. Typical examples of such mate assist members can be found, for example, in US 7,384,258 B2, US 2006/21 1286 A1 or US 2006/040535 A1 .
  • the mate assist member preferably comprises at least one cam recess adapted for cooperation with at least one cam protrusion of the counter-connector. A mating between the connector assembly and the corresponding counter-connector can preferably be completed by actuating the mate assist member relative to the connector assembly.
  • the cam recess is preferably shaped, and in particular inclined, so as to pull the corresponding counter- connector in the direction of the connector assembly and, thereby into the direction of a correct, complete and reliable mating of the connector assembly with the corresponding counter-connector.
  • the mating of large, complex and tight connector assemblies with the corresponding counter-connectors is facilitated.
  • the cam recess is a cam groove, so that an actuating of the mate assist member leads to a directed movement of the cam protrusion of the counter-connector in the cam groove to approach the connector assembly and the corresponding counter-connector.
  • the mate assist member is preferably a mate assist slider having a generally U-shaped configuration with two legs joined by a common web, whereby each leg is provided with two cam recesses for cooperation with corresponding cam protrusions provided on opposing sides of the counter-connector.
  • the mate assist slider is, preferably, also guided in at least one channel of the connector housing.
  • the mate assist member can also be a mate assist lever.
  • the cam recess of the mate assist member is preferably further provided for cooperation with at least one retaining means of the seal protection cap to provide a blocking function, as later described.
  • the seal protection cap is mountable to the connector assembly for protecting the sealing member, for example during transport, against environmental influences and, in particular, against mechanical damages. Therefore, the seal protection cap preferably comprises a channel-shaped configuration adapted to, at least partially, receive the sealing member therein. Further, when mounted, the seal protection cap preferably completely covers a mating face of the connector housing.
  • the seal protection cap is further provided with retaining means for blocking the mate assist member in a pre-closed position, such that the mate assist member cannot be moved into its final closed position, i.e. the position into which the mate assist member has to be moved for a mating of connector and counter-connector.
  • the pre-closed position denotes a not closed transport position of the mate assist member.
  • the seal protection cap preferably blocks, i.e. prevents, a mating of the connector housing with the counter-connector.
  • the seal protection cap has a secondary function, namely a blocking function, in addition to its primary function, namely to protect the sealing member from being damaged during handling or transport.
  • the mate assist member can only be moved in its final closed position in the connector assembly, when the seal protection cap is removed from the connector assembly.
  • the retaining means are no longer engaging the mate assist member and the blocking thereof is released.
  • the connector housing and the corresponding counter-connector can be completely mated.
  • the seal protection cap prevents that the connector and the counter- connector are mated when the seal protection cap is still attached to the connector housing. This is a third function of the seal protection cap.
  • the retaining means of the seal protection cap comprise, preferably, at least one latch tongue adapted to cooperate with a latching shoulder provided on the connector housing to latch the seal protection cap onto the connector housing.
  • the latch tongue in a mounted condition, preferably protrudes, at least partially, into the cam recess of the mate assist member.
  • the mate assist member is preferably adapted to block the latching of the latch tongue when the mate assist member is not correctly mounted in its pre-closed position.
  • the seal protection cap can preferably only be positioned in the connector assembly, when the mate assist member is in the pre-closed position.
  • the latch tongue in a latched condition, provides the blocking function and is, preferably, the only fastening means for the seal protection cap on the connector housing.
  • FIG. 1 shows a three dimensional cross-section of a connector assembly comprising a mate assist slider, a sealing member and a seal protection cap,
  • FIG. 2 shows a cross-section of the connector assembly in a longitudinal direction
  • FIG. 3 shows a schematic illustration of the seal protection cap from a first perspective
  • Figure 4 shows the seal protection cap of Figure 3 turned by 180°
  • FIG. 5 shows a schematic illustration of the connector assembly.
  • Figures 1 and 2 show cross sections of a connector assembly 1 in a lateral and in a longitudinal cut direction.
  • the connector assembly 1 is an electrical connector assembly and is provided in a rectangular shape, although also other shapes are possible.
  • the connector assembly 1 comprises a connector housing 20 made from injection moulded plastic and a sealing member 30 for sealing the connector assembly 1 against environmental influences when connected to a corresponding counter-connector (not shown).
  • the sealing member 30 is a closed rectangular "ring" and comprises two elastic sealing lips 31 and 32. In a mated condition with the counter-connector, these elastic sealing lips 31 and 32 are pressed against a corresponding surface of the counter-connector, thereby providing a tight seal against, in particular, moisture.
  • the connector assembly 1 further comprises a mate assist member 40 in form of a mate assist slider associated with the connector housing 20 for facilitating a mating of the connector housing 20 with the corresponding counter-connector.
  • a seal protection cap 50 is provided for protecting the sealing member 30.
  • the cap 50 is provided with retaining means 51 for blocking the mate assist member 40 in a pre-position, respectively a pre-closed position, as shown on the top of Figure 2, such that the mate assist member 40 cannot be moved into its final closed position.
  • the mate assist member 40 is in form of a slider.
  • the mate assist member 40 is shaped, in this example, as a mate assist slider having a U- shaped configuration with two legs 42 joined by a common web 43, as particularly shown on Figure 5, whereby each leg 42 is provided with two cam recesses 41 , as shown on Figure 2, for cooperation with corresponding cam protrusions provided on opposing sides of the counter-connector.
  • This function of the slider 40 is generally known to the skilled person.
  • the slider 40 is further guided in two channels 21 of the connector housing 20.
  • the mate assist member 40 can also be provided in other forms, as for example in form of a mate assist lever or in a combination of slider and lever, wherein the lever actuates the slider.
  • the mate assist member 40 is associated to the connector housing 20 for facilitating a mating of the connector housing 20 with the corresponding counter-connector.
  • the mate assist member 40 comprises therefore, in this example, four cam recesses 41 , two in each leg 42, adapted for cooperation with four cam protrusion (not shown) of the counter-connector.
  • a mating between the connector assembly 1 and the corresponding counter-connector is completed by pushing the mate assist member 40 into the connector assembly 1. Then, the cam protrusions of the corresponding counter-connector slide in the cam recesses 41 of the mate assist member 40.
  • the cam recesses 41 are shaped, in this example, as cam grooves and are inclined in the direction to the connector assembly 1 , so as to pull the corresponding counter-connector in the direction of the connector assembly 1 and thereby into the direction of a correct, complete and reliable mating of the connector assembly 1 with the corresponding counter-connector.
  • the actuating of the mate assist member 40 leads to a directed movement of the cam protrusions of the counter- connector in the cam recesses 41 or grooves to approach the connector assembly 1 and the corresponding counter-connector.
  • the sealing member 30 fits around an outer wall of the connector housing 20 and is thus removably attached to the connector assembly 1.
  • the sealing member 30 is pressed against a surface of the counter-connector.
  • the sealing member 30 can be provided in all kinds of shapes and cross sections.
  • the seal protection cap 50 therefore comprises a channel-shaped configuration to receive the sealing member 30 therein. In the shown embodiment, the seal protection cap 50 allows access to the interior of the connector.
  • the seal protection cap 50 when mounted completely, covers a mating face 23 of the connector housing 20 for protecting the mating face 23, respectively the interior of the connector housing 20.
  • Figures 3 and 4 show schematic illustrations of the seal protection cap 50 from two opposite sides.
  • the seal protection cap 50 is provided with a front side 53, as shown on Figure 3, facing away from the connector housing 20 when attached thereto, and a rear side 54 opposite the front side 53, as shown on Figure 4.
  • the rear side 54 is provided with a circumferential channel 55 being formed by two essentially parallel channel walls 56 and 57.
  • the channel 55 is adapted to receive the sealing member 30.
  • the seal protection cap 50 allows an access to the interior of connector housing 20, for example, to check the function of electrical terminals arranged therein.
  • the seal protection cap 50 is one integral part made from injection moulded plastics. In alternative embodiments, the seal protection cap 50 may be assembled from several components.
  • the cam recesses 41 of the mate assist member 40 are adapted to cooperate with four retaining means 51 of the seal protection cap 50 to provide a blocking.
  • the retaining means 51 By means of the retaining means 51 , the mate assist member 40 is blocked in a pre-closed position, such that the mate assist member 40 cannot be moved into its final closed position in the connector assembly 1 .
  • the four retaining means 51 are; in this example; evenly distributed on the two longitudinal walls of the seal protection cap 50.
  • the retaining means 51 can also be evenly distributed around the entire circumference wall of the seal protection cap 50.
  • retaining means 51 In the shown embodiment, four retaining means 51 are used. However, generally one retaining means 51 is sufficient. In general, an arbitrary number of retaining means 51 can be arbitrarily arranged at the seal protection cap 50 according to varying outer conditions.
  • the four retaining means 51 of the seal protection cap 50 each comprise a latch tongue 52 to cooperate with a latching shoulder 22 provided on the connector housing 20 to latch the seal protection cap 50 onto the connector housing 20.
  • the four latch tongues 52 in a mounted condition, protrude, in the shown preferred embodiment, at the same time partially into four cam recesses 41 of the mate assist member 40, thereby blocking the mate assist member 40.
  • the four cam recesses 41 are, in this example, evenly distributed on the two longitudinal walls of the mate assist member 40.
  • an arbitrary number of cam recesses 41 can be arbitrarily arranged at walls of the mate assist member 40 according to varying outer conditions.
  • the mate assist member 40 blocks the latching of the latch tongues 52, when the mate assist member 40 is not correctly mounted in its pre-closed position.
  • the seal protection cap 50 can only be mounted to the connector assembly 1 , when the mate assist member 40 is in the correct pre- closed position. This is a further security means provided by the invention.
  • the latch tongues are the only fastening means for the seal protection cap 50 on the connector housing 20.
  • the seal protection cap 50 prevents a mating of the connector housing 20 with the counter-connector by blocking the mate assist member 40.
  • This function of the seal protection cap 50 is called “blocking function” or “third function”, in addition to protecting the sealing member 30 and holding the mate assist member 40 in the pre- closed position before mating.
  • the third function assures that a removal of the seal protection cap 50 is done before mating.
  • Figure 5 shows the mating side of the connector assembly 1 in a schematic illustration.
  • the seal protection cap 50 allows access to the interior of the connector housing 20 and, in particular to any electrical contacts or terminals arranged therein.
  • the connector assembly 1 can be shaped as female or male part of a female/male connection with the corresponding counter- connector.
  • the components of the connector assembly 1 and the corresponding counter-connector can be made of plastic, ceramic, metallic or compound materials, or any other materials.
  • the connector housing 20 is an injection moulded plastic part.
  • At least the sealing member 30 and/or the seal protection cap 50 can be made of elastic materials.

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  • Connector Housings Or Holding Contact Members (AREA)

Abstract

The present invention relates to a connector assembly (1) comprising: - a connector housing (20), - a sealing member (30), - a mate assist member (40), and - a seal protection cap (50). The seal protection cap (50) is provided with retaining means (51) for blocking the mate assist member (40) in a pre-closed position, such that the mate assist member (40) cannot be moved into its final closed position.

Description

CONNECTOR ASSEMBLY WITH SEAL PROTECTION CAP
The present invention relates to a connector assembly with a sealing member for sealing the connector assembly against environmental influences, as in particular moisture, when connected to a corresponding counter-connector and, in particular, to a seal protection cap for the protection of the sealing member, for example during handling and transport of the connector assembly.
Connector assemblies with sealing members and seal protection members are known in the prior art. For example, the document US 7,044,762 B1 discloses a waterproof electrical connector that includes a main body housing with a through hole and a tubular connector seal made of an elastic member fitted around the circumference of the main body housing. The seal is pressed against the inner circumference wall of the housing of the counter- connector when the waterproof connector is mated. Further, a tubular sliding hood is installed to protect the seal during transport and handling before mating. The hood is slidable in the main body housing and is pushed away from the seal in the process of mating, such that the seal can come into contact with the housing of the counter-connector. This construction is rather complex and requires that the hood is arranged slidable. This can lead to problems during assembly, for example when the hood gets stuck.
In addition, the document US 2001/024908 A1 discloses a cap- shaped dustproof cover for a connector which is fitted over an outer periphery of a connector from a front side of the connector, so as to cover a front-end fitting surface of the connector. The cover basically encases the whole connector housing and is therefore relatively big and expensive to produce. Another example is disclosed in the document US 2009/275227 A1 . Therein, a cylindrical electrical connector is disclosed including a connector body and a seal protection cap. The connector body includes a cap housing, a body and a concave fitting section provided with a circular seal. The seal protection cap includes a front face plate and a protection section. The front face plate is provided with an opening in order to allow a continuity check from a front face of the fitting section. The protection section extends cylindrically from a peripheral edge of the front face plate along a side face of the fitting section, so as to cover the seal. The seal protection cap is applied to the fitting section of the connector body so as to cover the seal.
Although the seal protection members of the prior art connector assemblies function generally satisfactory, there is still room for improvement. For example, the mating of the connector assembly with the corresponding counter-connector needs to be facilitated, in particular for large, complex and tight connector assemblies and corresponding counter-connectors. Further, it is generally preferred that a correct, complete and reliable mating of the connector assembly with the corresponding counter-connector needs is ensured. Another important aspect is that, in the art, it often happens that the protection members are not removed before mating of the connector, whereby then forced mating of the connector and the corresponding counter-connector leads to damages on the seal protection cap, the seal and/or the connector assembly.
Therefore, it is an object of the present invention to provide an improved connector assembly with a seal protection cap which facilitates and ensures a correct mating of all kinds of connector assemblies with the corresponding counter-connectors. It is a further object of the present invention to provide an improved connector assembly, by which it is made impossible to forget the removal of the seal protection cap before the mating of the connector assembly and the corresponding counter-connector. These and further objects, which become apparent upon reading the following description, are solved by a connector assembly according to claim 1 .
According to the invention, a connector assembly is provided, comprising a connector housing, a sealing member, a mate assist member, and a seal protection cap. Preferably, the connector assembly is an electrical connector assembly and the mating face is preferably provided in a rectangular shape. The sealing member is provided for sealing the connector housing, for example against moisture, when connected to a corresponding counter-connector. Other environmental influences for which the sealing member may or may not provide protection may be liquids, humidity, fine particles, dirt or the like. The sealing member may have all kinds of shapes, cross sections and materials, but is preferably provided with one or more elastic sealing lips that are pressed against a corresponding surface of the counter-connector. The sealing member is preferably made from an inexpensive material, as for example a thermoplastic elastomer.
The mate assist member is associated with the connector housing for facilitating a mating of the connector housing with the corresponding counter-connector and can, for example, be provided in form of a mate assist lever or a mate assist slider or similar as it is known to the skilled person. Typical examples of such mate assist members can be found, for example, in US 7,384,258 B2, US 2006/21 1286 A1 or US 2006/040535 A1 . The mate assist member preferably comprises at least one cam recess adapted for cooperation with at least one cam protrusion of the counter-connector. A mating between the connector assembly and the corresponding counter-connector can preferably be completed by actuating the mate assist member relative to the connector assembly. Thereby, the cam protrusion of the corresponding counter-connector moves in the cam recess of the mate assist member. The cam recess is preferably shaped, and in particular inclined, so as to pull the corresponding counter- connector in the direction of the connector assembly and, thereby into the direction of a correct, complete and reliable mating of the connector assembly with the corresponding counter-connector. Thereby, in particular, the mating of large, complex and tight connector assemblies with the corresponding counter-connectors is facilitated.
Further preferably, the cam recess is a cam groove, so that an actuating of the mate assist member leads to a directed movement of the cam protrusion of the counter-connector in the cam groove to approach the connector assembly and the corresponding counter-connector.
The mate assist member is preferably a mate assist slider having a generally U-shaped configuration with two legs joined by a common web, whereby each leg is provided with two cam recesses for cooperation with corresponding cam protrusions provided on opposing sides of the counter-connector. The mate assist slider is, preferably, also guided in at least one channel of the connector housing. However, alternatively the mate assist member can also be a mate assist lever.
The cam recess of the mate assist member is preferably further provided for cooperation with at least one retaining means of the seal protection cap to provide a blocking function, as later described.
The seal protection cap is mountable to the connector assembly for protecting the sealing member, for example during transport, against environmental influences and, in particular, against mechanical damages. Therefore, the seal protection cap preferably comprises a channel-shaped configuration adapted to, at least partially, receive the sealing member therein. Further, when mounted, the seal protection cap preferably completely covers a mating face of the connector housing.
According to the invention, the seal protection cap is further provided with retaining means for blocking the mate assist member in a pre-closed position, such that the mate assist member cannot be moved into its final closed position, i.e. the position into which the mate assist member has to be moved for a mating of connector and counter-connector. The pre-closed position denotes a not closed transport position of the mate assist member. Thereby, when mounted, the seal protection cap preferably blocks, i.e. prevents, a mating of the connector housing with the counter-connector. Thus, the seal protection cap has a secondary function, namely a blocking function, in addition to its primary function, namely to protect the sealing member from being damaged during handling or transport.
Thereby, the mate assist member can only be moved in its final closed position in the connector assembly, when the seal protection cap is removed from the connector assembly. By removing the seal protection cap, the retaining means are no longer engaging the mate assist member and the blocking thereof is released. Thus, the connector housing and the corresponding counter-connector can be completely mated. In other words, the seal protection cap prevents that the connector and the counter- connector are mated when the seal protection cap is still attached to the connector housing. This is a third function of the seal protection cap.
The retaining means of the seal protection cap comprise, preferably, at least one latch tongue adapted to cooperate with a latching shoulder provided on the connector housing to latch the seal protection cap onto the connector housing. The latch tongue, in a mounted condition, preferably protrudes, at least partially, into the cam recess of the mate assist member. The mate assist member is preferably adapted to block the latching of the latch tongue when the mate assist member is not correctly mounted in its pre-closed position. Thereby, the seal protection cap can preferably only be positioned in the connector assembly, when the mate assist member is in the pre-closed position. Further preferably, the latch tongue, in a latched condition, provides the blocking function and is, preferably, the only fastening means for the seal protection cap on the connector housing.
In the following, the invention is described exemplarily with reference to the enclosed figures in which:
- Figure 1 shows a three dimensional cross-section of a connector assembly comprising a mate assist slider, a sealing member and a seal protection cap,
- Figure 2 shows a cross-section of the connector assembly in a longitudinal direction, - Figure 3 shows a schematic illustration of the seal protection cap from a first perspective,
- Figure 4 shows the seal protection cap of Figure 3 turned by 180°, and
- Figure 5 shows a schematic illustration of the connector assembly.
Figures 1 and 2 show cross sections of a connector assembly 1 in a lateral and in a longitudinal cut direction. In this example, the connector assembly 1 is an electrical connector assembly and is provided in a rectangular shape, although also other shapes are possible. The connector assembly 1 comprises a connector housing 20 made from injection moulded plastic and a sealing member 30 for sealing the connector assembly 1 against environmental influences when connected to a corresponding counter-connector (not shown). The sealing member 30 is a closed rectangular "ring" and comprises two elastic sealing lips 31 and 32. In a mated condition with the counter-connector, these elastic sealing lips 31 and 32 are pressed against a corresponding surface of the counter-connector, thereby providing a tight seal against, in particular, moisture.
These lips 31 and 32 are relatively delicate and easily damaged during handling and transport.
The connector assembly 1 further comprises a mate assist member 40 in form of a mate assist slider associated with the connector housing 20 for facilitating a mating of the connector housing 20 with the corresponding counter-connector.
Mounted to the connector assembly 1 , a seal protection cap 50 is provided for protecting the sealing member 30. The cap 50 is provided with retaining means 51 for blocking the mate assist member 40 in a pre-position, respectively a pre-closed position, as shown on the top of Figure 2, such that the mate assist member 40 cannot be moved into its final closed position. In a preferred embodiment, the mate assist member 40 is in form of a slider.
This can best be derived from Figure 2, where the slider 40 is shown in its pre-closed position. As the skilled person recognizes, the slider 40 can be pushed to the left, in the figure 2, into the connector housing 20. Upon mating with a corresponding counter- connector, the slider 40 will engage a member of the counter- connector and pull the connector and the counter-connector towards each other. When the slider 40 is in its final closed position, the mating process is completed. As shown in Figures 1 , 2 and 5, the mate assist member 40 is shaped, in this example, as a mate assist slider having a U- shaped configuration with two legs 42 joined by a common web 43, as particularly shown on Figure 5, whereby each leg 42 is provided with two cam recesses 41 , as shown on Figure 2, for cooperation with corresponding cam protrusions provided on opposing sides of the counter-connector. This function of the slider 40 is generally known to the skilled person. The slider 40 is further guided in two channels 21 of the connector housing 20. Alternatively, the mate assist member 40 can also be provided in other forms, as for example in form of a mate assist lever or in a combination of slider and lever, wherein the lever actuates the slider. The mate assist member 40 is associated to the connector housing 20 for facilitating a mating of the connector housing 20 with the corresponding counter-connector. As shown in Figures 1 and 2, for this purpose, the mate assist member 40 comprises therefore, in this example, four cam recesses 41 , two in each leg 42, adapted for cooperation with four cam protrusion (not shown) of the counter-connector. A mating between the connector assembly 1 and the corresponding counter-connector is completed by pushing the mate assist member 40 into the connector assembly 1. Then, the cam protrusions of the corresponding counter-connector slide in the cam recesses 41 of the mate assist member 40. The cam recesses 41 are shaped, in this example, as cam grooves and are inclined in the direction to the connector assembly 1 , so as to pull the corresponding counter-connector in the direction of the connector assembly 1 and thereby into the direction of a correct, complete and reliable mating of the connector assembly 1 with the corresponding counter-connector.
In other words, the actuating of the mate assist member 40 leads to a directed movement of the cam protrusions of the counter- connector in the cam recesses 41 or grooves to approach the connector assembly 1 and the corresponding counter-connector.
As also shown in Figures 1 and 2, the sealing member 30 fits around an outer wall of the connector housing 20 and is thus removably attached to the connector assembly 1. When the connector assembly 1 is connected to the corresponding counter- connector, the sealing member 30 is pressed against a surface of the counter-connector. The sealing member 30 can be provided in all kinds of shapes and cross sections. As also shown in Figures 1 and 2, and in detail in Figures 3 and 4, the seal protection cap 50 therefore comprises a channel-shaped configuration to receive the sealing member 30 therein. In the shown embodiment, the seal protection cap 50 allows access to the interior of the connector.
In an alternative embodiment (not shown), the seal protection cap 50, when mounted completely, covers a mating face 23 of the connector housing 20 for protecting the mating face 23, respectively the interior of the connector housing 20.
Figures 3 and 4 show schematic illustrations of the seal protection cap 50 from two opposite sides. The seal protection cap 50 is provided with a front side 53, as shown on Figure 3, facing away from the connector housing 20 when attached thereto, and a rear side 54 opposite the front side 53, as shown on Figure 4. The rear side 54 is provided with a circumferential channel 55 being formed by two essentially parallel channel walls 56 and 57. The channel 55 is adapted to receive the sealing member 30. The seal protection cap 50 allows an access to the interior of connector housing 20, for example, to check the function of electrical terminals arranged therein.
Preferably, the seal protection cap 50 is one integral part made from injection moulded plastics. In alternative embodiments, the seal protection cap 50 may be assembled from several components.
Referring back to Figure 2, the cam recesses 41 of the mate assist member 40 are adapted to cooperate with four retaining means 51 of the seal protection cap 50 to provide a blocking. By means of the retaining means 51 , the mate assist member 40 is blocked in a pre-closed position, such that the mate assist member 40 cannot be moved into its final closed position in the connector assembly 1 . As also shown in Figures 1 and 2, the four retaining means 51 are; in this example; evenly distributed on the two longitudinal walls of the seal protection cap 50. The retaining means 51 can also be evenly distributed around the entire circumference wall of the seal protection cap 50.
In the shown embodiment, four retaining means 51 are used. However, generally one retaining means 51 is sufficient. In general, an arbitrary number of retaining means 51 can be arbitrarily arranged at the seal protection cap 50 according to varying outer conditions.
The four retaining means 51 of the seal protection cap 50 each comprise a latch tongue 52 to cooperate with a latching shoulder 22 provided on the connector housing 20 to latch the seal protection cap 50 onto the connector housing 20. The four latch tongues 52, in a mounted condition, protrude, in the shown preferred embodiment, at the same time partially into four cam recesses 41 of the mate assist member 40, thereby blocking the mate assist member 40.
Due to this double function, it is secured that, as long as the seal protection cap 50 is mounted, it is not possible to actuate the mate assist member 40, i.e. to move it into its closed position.
As also shown in Figures 1 and 2, the four cam recesses 41 are, in this example, evenly distributed on the two longitudinal walls of the mate assist member 40. In general, an arbitrary number of cam recesses 41 can be arbitrarily arranged at walls of the mate assist member 40 according to varying outer conditions. In the shown configuration, the mate assist member 40 blocks the latching of the latch tongues 52, when the mate assist member 40 is not correctly mounted in its pre-closed position. Thereby, the seal protection cap 50 can only be mounted to the connector assembly 1 , when the mate assist member 40 is in the correct pre- closed position. This is a further security means provided by the invention.
Generally, preferably, the latch tongues are the only fastening means for the seal protection cap 50 on the connector housing 20.
The skilled person will understand that, when mounted, the seal protection cap 50 prevents a mating of the connector housing 20 with the counter-connector by blocking the mate assist member 40. This function of the seal protection cap 50 is called "blocking function" or "third function", in addition to protecting the sealing member 30 and holding the mate assist member 40 in the pre- closed position before mating. The third function assures that a removal of the seal protection cap 50 is done before mating.
Figure 5 shows the mating side of the connector assembly 1 in a schematic illustration. As one can see, the seal protection cap 50 allows access to the interior of the connector housing 20 and, in particular to any electrical contacts or terminals arranged therein. The connector assembly 1 can be shaped as female or male part of a female/male connection with the corresponding counter- connector.
The components of the connector assembly 1 and the corresponding counter-connector can be made of plastic, ceramic, metallic or compound materials, or any other materials. However, most preferably, the connector housing 20 is an injection moulded plastic part. At least the sealing member 30 and/or the seal protection cap 50 can be made of elastic materials.

Claims

Claims
1 . Connector assembly (1 ) comprising:
- a connector housing (20),
- a sealing member (30), for sealing the connector housing (20),
- a mate assist member (40), associated to the connector housing (20) for facilitating a mating of the connector housing (20) with the corresponding counter-connector, and
- a seal protection cap (50), being mountable to the connector assembly (1 ), for protecting the sealing member (30),
the seal protection cap (50) being provided with retaining means (51 ) for blocking the mate assist member (40) in a pre-closed position, such that the mate assist member (40) cannot be moved into its final closed position.
Connector assembly (1 ) according to claim 1 , wherein the seal protection cap (50), when mounted, prevents a mating of the connector housing (20) with the counter-connector.
Connector assembly (1 ) according to one of the preceding claims, wherein the seal protection cap (50) comprises a channel-shaped configuration adapted to, at least partially, receive the sealing member (30) therein.
Connector assembly (1 ) according to one of the preceding claims, wherein the seal protection cap (50), when mounted, completely covers a mating face (23) of the connector housing (20), for protecting the mating face (23) against environmental influences.
5. Connector assembly (1 ) according to claim 4, wherein the mating face (23) of the connector housing (20) is provided in a rectangular shape.
6. Connector assembly (1 ) according to one of the preceding claims, wherein the mate assist member (40) comprises at least one cam recess (41 ) and the retaining means (51 ) of the seal protection cap (50) is/are adapted for cooperation with said cam recess (41 ) of the mate assist member (40) to provide a blocking function.
7. Connector assembly (1 ) according to one of the preceding claims, wherein the retaining means (51 ) comprises at least one latch tongue (52) adapted to cooperate with a latching shoulder (22) provided on the connector housing (20) to latch the seal protection cap (50) onto the connector housing (20).
8. Connector assembly (1 ) according to claims 6 and 7, wherein the at least one latch tongue (52), in a mounted condition, protrudes, at least partially, into the cam recess (41 ) of the mate assist member (40).
9. Connector assembly (1 ) according to one of the preceding claims 7 or 8, wherein the mate assist member (40) is adapted to block the latching of the latch tongue (52), when the mate assist member (40) is not correctly mounted in its pre-locked position.
10. Connector assembly (1 ) according to one of the preceding claims 7 to 9, wherein the latch tongue (52), in a latched condition, provides said blocking function.
1 1 . Connector assembly (1 ) according to one of the preceding claims 7 to 10, wherein the latch tongue (52) is the only fastening means for the seal protection cap (50) on the connector housing (20).
12. Connector assembly (1 ) according to one of the preceding claims 6 to 11 , wherein the cam recess (41 ) of the mate assist member (40) is provided for cooperation with at least one cam protrusion of the counter-connector for facilitating a mating of the connector housing (20) with the counter-connector.
13. Connector assembly (1 ) according to one of the preceding claims 6 to 12, wherein the cam recess (41 ) is a cam groove, so that an actuating of the mate assist member (40) leads to a directed movement of the cam protrusion of the counter- connector in the cam groove to approach the connector assembly (1 ) and the corresponding counter-connector.
14. Connector assembly (1 ) according to one of the preceding claims, wherein the mate assist member (40) is a slider having a generally u-shaped configuration with two legs (42) joined by a common web (43) and whereby each leg (42) is provided with two cam recesses (41 ) for cooperation with corresponding cam protrusions provided on opposing sides of the counter- connector.
15. Connector assembly (1 ) according to the preceding claim, wherein the slider (40) is guided in at least one channel (21 ) of the connector housing (20).
16. Connector assembly (1 ) according to one of the claims 1 to 13, wherein the mate assist member (40) is a lever.
17. Connector assembly (1 ) according to one of the preceding claims, wherein the sealing member (30) and/or the seal protection cap (50) are made from thermoplastic elastomer (TPE).
EP12799559.5A 2011-12-23 2012-12-10 Connector assembly with seal protection cap Not-in-force EP2795737B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IB2011003314 2011-12-23
PCT/EP2012/074984 WO2013092278A1 (en) 2011-12-23 2012-12-10 Connector assembly with seal protection cap

Publications (2)

Publication Number Publication Date
EP2795737A1 true EP2795737A1 (en) 2014-10-29
EP2795737B1 EP2795737B1 (en) 2017-03-22

Family

ID=47356040

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12799559.5A Not-in-force EP2795737B1 (en) 2011-12-23 2012-12-10 Connector assembly with seal protection cap

Country Status (3)

Country Link
EP (1) EP2795737B1 (en)
CN (1) CN104115343B (en)
WO (1) WO2013092278A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202021105126U1 (en) 2021-09-23 2023-01-09 Hellermanntyton Gmbh Electrical connector with sealing

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Publication number Priority date Publication date Assignee Title
DE19844689A1 (en) * 1998-09-29 2000-03-30 Delphi Automotive Systems Gmbh Electrical connector with a transport device
ES1045059Y (en) * 2000-01-12 2000-12-16 Lear Automotive Eeds Spain RETENTION MEANS FOR A PERFECTED ELECTRICAL CONNECTOR ASSEMBLY.
JP2001267004A (en) * 2000-03-21 2001-09-28 Yazaki Corp Dust cover for connector pre-fitting dust-proof structure for connector
JP4373294B2 (en) 2004-07-09 2009-11-25 日本碍子株式会社 Die for forming honeycomb structure and method for manufacturing the same
US20060040535A1 (en) 2004-08-20 2006-02-23 Vijy Koshy Lever type electrical connector with slide members
US7175451B2 (en) 2005-03-15 2007-02-13 Tyco Electronics Corporation Lever mated connector assembly with a position assurance device
SG127773A1 (en) 2005-06-01 2006-12-29 Mea Technologies Pte Ltd Waterproof connector
JP5075730B2 (en) * 2008-04-30 2012-11-21 タイコエレクトロニクスジャパン合同会社 Sealing member protective cap and connector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202021105126U1 (en) 2021-09-23 2023-01-09 Hellermanntyton Gmbh Electrical connector with sealing
EP4156416A1 (en) 2021-09-23 2023-03-29 HellermannTyton GmbH Electrical connector with sealing

Also Published As

Publication number Publication date
WO2013092278A1 (en) 2013-06-27
CN104115343B (en) 2016-05-18
EP2795737B1 (en) 2017-03-22
CN104115343A (en) 2014-10-22

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