USRE43780E1 - Plug connector - Google Patents

Plug connector Download PDF

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Publication number
USRE43780E1
USRE43780E1 US12613474 US61347409A USRE43780E US RE43780 E1 USRE43780 E1 US RE43780E1 US 12613474 US12613474 US 12613474 US 61347409 A US61347409 A US 61347409A US RE43780 E USRE43780 E US RE43780E
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Prior art keywords
connector
engagement
shell
body
connector element
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Active
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US12613474
Inventor
Yoshifumi Kubota
Yoshihide Kuroki
Masahide Watanabe
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Apple Inc
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Apple Inc
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    • H—ELECTRICITY
    • H01—BASIC ELECTRIC ELEMENTS
    • H01R—LINE CONNECTORS; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current connectors or for joining electric conductors
    • H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current connectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending
    • H—ELECTRICITY
    • H01—BASIC ELECTRIC ELEMENTS
    • H01R—LINE CONNECTORS; 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
    • H—ELECTRICITY
    • H01—BASIC ELECTRIC ELEMENTS
    • H01R—LINE CONNECTORS; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCBs], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/75—Coupling devices for rigid printing circuits or like structures connecting to cables except for flat or ribbon cables

Abstract

A connector including a first connector element and a second connector element that are coupled into a single unit, in which the first connector element has an engagement projection that projects interior of the first connector element and extends in the direction of the depth of the first connector element so that the front end of the engagement projection is spacedly apart from the front edge of the first connector element, and the second connector element is formed with an engagement slit that extends in the direction of depth of the second connector element and engages with the engagement projection of the first connector element.

Description

Notice: More than one reissue application has been filed for the reissue of U.S. Pat. No. 6,776,660. The reissue applications are application Ser. Nos. 11/334,820 and 29/318,045, all of which are continuation reissues of Ser. No. 11/334,820.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a connector and more particularly to an electrical connector used in, for instance, small size electrical appliances.

2. Prior Art

In for instance, computer related electronic appliances, the electrical connections including connections to an AC adapter, to interfaces, etc. are made in many different ways. Such electrical connections are typically made by connectors that substantially comprise a receptacle (female) side connector element and a plug (male) side connector element that is brought into the receptacle side connector and coupled thereto for making electrical connection in between so that pin-shaped electrodes installed in the connector elements are connected.

More specifically, connectors typically include in their metal shells a plurality of pins (or terminals) that are arranged in parallel in their longitudinal directions and positionally secured by insulator material such as polyamide, LCP (liquid crystalline polymer), etc. The pins in the receptacle and plug side connector elements are spacedly arranged side by side in the direction in which the connector elements are mated together.

Upon making connection of the plug side connector element into the receptacle side connector element, it is necessary that respective pins in two connector elements be aligned to be on a straight line. In other words, it is necessary to avoid the connector elements from being oblique to each other when they are brought together at their front edges for connection. If the plug side connector element in an oblique posture with reference to the receptacle side connector element, as shown in FIG. 10, is pushed into the receptacle side connector element, an irregular pin connection is made (as at 100) as seen from the enlarged view shown in the circle in FIG. 10, and this would cause several problems including short-circuiting.

In addition, when the plug side connector element is connected to the receptacle connector element in a slanted posture (which can easily occur when there is size differences between the receptacle and plug side connector elements), removing of the plug side connector element from the receptacle side connector element is not easily done and occasionally requires forcible and repeated twists on the shell of the plug side connector element This would cause damage to the pins and the shells of both connector elements.

Thus, though pin alignment is essential when connection is made between the two connector elements, such a pin alignment is not obtained easily and this difficulty can occur often when the connector is small in size and used in small size electrical devices such as a personal digital assistance (PDA), digital cameras, camcorders, etc.

SUMMARY OF THE INVENTION

Accordingly, the object of the present invention is to provide an electrical connector that allows accurate and secure connections or coupling between connector elements to be made easily without causing pin or electrode misalignment.

The above object is accomplished by a unique structure of the present invention for a connector that comprises a first connector element and a second connector element that are coupled together when the second connector element is fitted in the first connector element, and in the present invention:

    • the first connector element is formed with an engagement projection that extends in the direction of the depth of the first connector element, the front end of the engagement projection being spacedly apart from the front edge of the first connector element; and
    • the second connector element is formed with an engagement slit or slot that extends in the direction of the depth of the second connector element so that the engagement slit receives therein the engagement projection of first connector element when the first and second connector elements are connected.

With the structure above, upon connecting the second connector element to the first connector element, the front end of the engagement slit of the second connector element engages with the engagement projection of the fist connecting element after the front end of the engagement slit has advanced the distance between the front edge of the first connector element and the front end of the engagement projection, and then the second connector element is pushed all the way to back of the first connector element in the depth of the first connector element while being guided by the engagement slit engaging with the engagement projection. Accordingly, even when the second connector element is obliquely pushed into the first connector element at the initial stage of coupling process, such oblique posture is corrected by the engagement projection of the first connector element as the second connector element is pushed and advanced to the back of the first connector element, and a connection between the first and second connector elements with the pins (electrodes) inside both of them being aligned straight can be made assuredly.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of the first connector body (first connector element) of the connector according to the present invention;

FIG. 2 is a perspective view of the second connector body (second connector element) of the connector according to the present invention;

FIG. 3 is a schematic top view of the first connector body,

FIG. 4 schematically shows the cross section of the first connector body taken along the line 44 in FIG. 3;

FIG. 5 is a schematic top view of the second connector body,

FIG. 6 schematically shows the cross section of the second connector body taken along the line 6-6 in FIG. 5;

FIG. 7 illustrates the second connector body which is combined with a plug assembly,

FIG. 8 illustrates the manner of connecting the second connector body to the first connector body,

FIG. 9 illustrates the first connector body to which the second connector body (not seen) is connected; and

FIG. 10 illustrates the manner of oblique connection of the first and second connector elements in prior art connector.

 DETAILED DESCRIPTION OF THE INVENTION

The connector of the present invention is comprised of a first connector body 20 (a receptacle side connector element) and a second connector body 40 (a plug side connector element).

As seen from FIGS. 1 and 2, the first and second connector bodies 20 and 40 comprise respectively a relatively flat box shape shell 22 and 42 made of a metal and include therein a plurality of pins or elongated electrodes, which are collectively referred to by the reference numerals 24 and 44 respectively, and an insulating material (not shown) is filled therein so as to positionally secure the pins 24 and 44.

The shell 22 of the first connector body 20 comprises, as best seen from FIG. 4, a top shell plate 22A and a bottom shell plate 22B as well as side shell plates 22C, thus forming a box shape that has a predetermined depth 22D (see FIG. 3) that extends from the front edge 20A to the rear edge 20B of the first connector body 20. The pins 24 of the first connector body 20 are arranged parallel to the direction of the depth 22D.

The shell 22 of the first connector 20 is formed in its top shell plate 22A with engagement projections 30. Each of the projections 30 is formed by cutting the top shell plate 22A in an angled C shape, and the resulting tongue pieces 22E are bent inward toward the interior of the shell 22. The tongue pieces 22E are in the shape of elongated parts of the shell 22 that extend in the direction of the depth 22D of the first connector body 20, and they are parallel to the side shell plates 22C of the first connector body 20 or to the side edges 22A′ of the top shell plate 22A.

The tongue pieces 22E are bent at locations of distance 22W from the side shell plates 22C or from the side edges 22A′ of the first connector body 20 to make the engagement projections 30. The engagement projections 30 are provided with a space of a distance L apart from the front edge 20A of the first connector body 20. In other words, the front ends 32 of the engagement projections 30 are spaced apart from the front edge 20A of the first connector body 20. The engagement projections 30 have a length 30L which is, in the shown embodiment, about two third the depth 22D of the first connector body 20.

On the other hand, the shell 42 of the second connector body 40 comprises, as best seen from FIG. 6, a top shell plate 42A and a bottom shall shell plate 42B as well as side shell plates 42C, thus forming a box shape with a predetermined depth 42D (see FIG. 6) that extends from the front edge 40A to the rear edge 40B of the second connector body 40. The overall size of the shell 42 of the second connector 42 is slightly smaller than the shell 22 of the first connector body 20 so that the second connector body 40 is fitted in the first connector body 20 from the front side of the first connector body 20. The pins 44 of the second connector body 40 are arranged so be parallel to the direction of the depth 42D.

The shell 42 of the second connector body 40 is formed in its top shell plate 42A with engagement slits 50. Each of the engagement slits 50 is formed by cutting away parts of the top shell plate 42A linearly so that the engagement slits 50 are parallel to and adjacent to the side plates 42C or to side edges 42A′ of the top shell plate 42A. An alternate construction would be to mold the slits 50 into the shell 42 when the shell 42 is made. The engagement slits 50 are provided so as to extend in the direction of depth 42D of the shell 42 of the second connector body 40. In other words, the front end ends 52 of the engagement slits 50 are on the front edge 40A of the second connector body 40. The engagement slits 50 have a length 50L which is, in the shown embodiment, about two thirds of the depth 42D of the second connector body 40 and is slightly larger in length than the engagement projections 30 of the first connector body 20.

The engagement slits 50 are opened at locations of distance 42W from the side shell plates 42C or from the side edges 42A′ of the top shell plate 42A of the second connector body 40, the distance 42W being substantially the same as the distance 22W of the engagement projections 30 of the first connector body 20. Thus, the engagement slits 50 positionally correspond to the engagement projections 30 of the first connector body 20. The width W of the engagement slits 50 is substantially the same as (or slightly larger than) the thickness of the tongue pieces 22E (engagement projections 30) which is the thickness of the metal material of the shell 22 of the first connector body 20.

The reference numerals 60 shown in FIG. 2 are raised springy holders formed by notching the top shell plate 42A of the second connector body 40 and raised outwardly.

The first and second connector bodies 20 and 40 structured as described above are connected by way of mating together at the front ends of the shells 22 and 42.

More specifically, as shown in FIG. 7, the second connector body 40, which is attached at its rear edge 40B to, typically, a plug assembly 60 70 that is connected to, for instance, an electrical cable (not shown), is held by hand, and then it is brought to the vicinity of the first connector body 20 which is installed in a casing body of, for instance, a PDA (not shown).

The front edge 40A of the second connector body 40, which is a plug side connector element, is set so as to face the front edge 20A of the first connector body 20, which is a receptacle side connector element, so that the first and second connector bodies 20 and 40 are aligned in the direction of the depth thereof (which brings an alignment of the pins 24 and 44 installed in such connector bodies 20 and 40). In this positioning, since the distances 22W and 42W of the first and second connector bodies 20 and 40 are substantially equal, the engagement projections 30 of the first connector body 20 and the engagement slits 50 of the second connector body 40 are also aligned on imaginary straight lines.

Then, the second connector body 40 is pushed into the first connector body 20 as shown by arrow in FIG. 8. During the initial pushing movement, the outer surfaces of the shell 42 of the second connector body 40 are guided by the inner surfaces of the shells 22 of the first connector body 20. After advancing the distance L which is the distance from the front edge 20A to the front ends 32 of the engagement projections 30 in the first connector body 20, the engagement slits 50 of the second connector body 40 come into engagement with the engagement projections 30 of the first connector body 20. As a result, the sliding movement of the second connector body 40 in the depth 22D of and toward the rear edge 20B of the first connector body 20 is guided by the engagement projections 30. The second connector body 40 is thus pushed into the first connector body 20 straight with the pins inside both connector bodies aligned straight as well and connected to the first connector body 20 (see FIG. 9, in which the second connector body 40 is unseen since it is inside the first connector body 20). The second connector body 40 is held inside the first connector body 20 by the raised springy holders 60 that press against the inside surface of the top shell plate 22A of the first connector body 20.

The width W of each engagement slit 50 is substantially the same as (or slightly larger than) the thickness of the engagement projection 30, and thus the engagement projections 30 have substantially no space for play in the direction perpendicular to the direction of the length of the engagement slits 50 or to the direction of the connecting direction of the first and second connector bodies 20 and 40. Accordingly, the engagement slits 50 of the second connector body 40 make no lateral movements during the sliding movement, keeping the straight alignment obtained by the engaged engagement projections 30 and engagement slits 50.

As a result, even when the second connector body 40 is slanted with reference to the first connector body 20 during the initial connecting stage, such a slanted positional relationship is automatically corrected to a straight relationship as the second connector body 40 is pushed into deep in the first connector body 20, and a snug and secure engagement of the first and second connector bodies 20 and 40 is accomplished, and pins 24 and 44 of the first and second connector bodies 20 and 40 are connected properly. The engagement projections 30 and the engagement slits 50 are formed near the side edges 22A′ and 42A′ of the first and second connector bodies 20 and 40, respectively; accordingly, the connection of the connector bodies 20 and 40 can be made in a stable fashion, and a separation of the connected connecting bodies can be made easily.

Claims (28)

1. A connector comprising a first connector element and a second connector element that are coupled together, wherein
said first and second connector elements are each formed with a metallic shell;
said first connector element is formed with an engagement projection that projects toward an interior of said first connector element and extends in a direction of depth of said first connector element, a front end of said engagement projection being spaced apart from a front edge of said connector element by a predetermined distance;
said engagement projection is formed by cutting a C-shape slit in a top surface of said metallic shell of said first connector element and bending a tongue formed downwardly; and
said second connector element is formed with an engagement slit in said metallic shell that extends in a direction of depth of said metallic shell of said second connector for engaging with said engagement projection formed in said metallic shell of said first connector element.
2. The connector according to claim 1, wherein said engagement projection is provided at two locations of said first connector element so as to be parallel to side edges of said first connector element, and said engagement slit is provided at two location of said second connector element so as to be parallel to side edges of said second connector element and to correspond to said two locations of said engagement projections of said first connector element.
3. The connector according to claim 1, wherein said engagement projection has a predetermined length in said depth direction and said engagement slit has a predetermined length in said depth direction which is at said predetermined length of said engagement projection.
4. An electrical connector comprising:
a plug connector element having a first metallic shell and adapted to be coupled to a receptacle connector element having a second metallic shell, the first shell comprising a top plate, a bottom plate, a first side and a second side and having a width W and a depth D, the first and second sides being small relative to the top and bottom plates making the first shell substantially flat;
first and second engagement slits formed in the top plate of the first shell, the first and second engagement slits starting from a front edge of the top plate and extending in a direction of the depth D;
an array of electrodes positioned within the first shell extending in a direction of the depth D between the first and second engagement slits such that there are no electrodes between an engagement slit and its respective side, the array of electrodes being positionally secured by insulating material to an interior surface of the bottom plate of the first shell, leaving an insertion cavity in the interior of the shell between the array of electrodes and the top plate;
wherein the first and second engagement slits in the first shell are adapted to engage with first and second engagement projections of the receptacle connector element that project toward an interior of the receptacle connector element and extend in a direction of a depth of the receptacle connector element, a front end of the first and second engagement projections being spaced apart from a front edge of the receptacle connector element by a predetermined distance, the engagement projections being formed by cutting a C-shape slit in a top surface of the second shell and bending a tongue formed downwardly.
5. The electrical connector of claim 4 further comprising first and second raised springy holders that are raised upwardly from the top plate of the first shell, the raised springy holders providing for compressive action when the plug connector element is coupled to the receptacle connector element.
6. The electrical connector of claim 4 further comprising a plug assembly attached to a rear edge of the plug connector element; and
a cable coupled to the plug assembly and electrically coupled to the array of electrodes via the plug assembly.
7. An electrical connector comprising:
a plug connector element having a first shell and adapted to be coupled to a receptacle connector element having a second shell, the first shell comprising a top plate, a bottom plate, a first side and a second side and having a width W and a depth D, the first and second sides being smaller relative to the top and bottom plates;
first and second engagement slits formed in the top plate of the first shell, the first and second engagement slits starting from a front edge of the top plate and extending in a direction of the depth D;
an array of electrodes positioned within the first shell extending in a direction of the depth D between the first and second engagement slits such that there are no electrodes between an engagement slit and its respective side, the array of electrodes being positionally secured by insulating material to an interior surface of the first shell, leaving an insertion cavity in the interior of the shell between the array of electrodes and the top plate;
wherein the first and second engagement slits in the first shell are adapted to engage with first and second engagement projections of the receptacle connector that project towards an interior of the receptacle connector element and extend in a direction of depth of the receptacle connector element.
8. The electrical connector of claim 7 wherein the plug connector element is formed with a metallic shell.
9. The electrical connector of claim 8 further comprising first and second raised springy holders that are raised upwardly from the top plate of the shell, the raised springy holders providing for compressive action when the plug connector element is coupled to the receptacle connector element.
10. The electrical connector of claim 7 further comprising first and second springy retention pins protruding from the first and second sides, respectively, the retention pins providing releasable locking mechanism when the plug connector mates with a receptacle connector.
11. The electrical connector of claim 10 wherein a length of the first and second engagement slits is about two thirds the depth D of the first shell.
12. The electrical connector of claim 11 further comprising a plug assembly attached to a rear edge of the plug connector element.
13. The electrical connector of claim 12 further comprising a cable coupled to the plug assembly and electrically coupled to the array of electrodes via the plug assembly.
14. The electrical connector of claim 13 wherein the plug assembly comprises a mechanism for retracting the springy retention pins into the body of the plug connector to release the locking mechanism.
15. An electrical plug connector comprising:
a body having a top plate, a bottom plate, a first side and a second side, the body having a width W and a depth D, wherein the first and second sides are smaller relative to the top and bottom plates providing a generally flat body;
first and second engagement slits formed on the top plate of the body and extending from a front edge of the top plate in a direction of depth D for engaging with engagement projections formed in a body of a corresponding receptacle side connector element;
an array of electrodes positioned within and extending in the direction of the depth D of the body between the first and second engagement slits such that there are no electrodes between an engagement slit and its respective side, the array of electrodes being positionally secured by insulating material to an interior surface of the bottom plate of the body, leaving an insertion cavity in the interior of the body between the array of electrodes and the top plate;
wherein the first and second engagement slits facilitate insertion alignment when the plug connector mates with a corresponding receptacle connector by mating with engagement projections that project toward an interior of the receptacle connector and extend in a direction of depth of the receptacle connector.
16. The electrical plug connector of claim 15 wherein the body comprises a metallic shell.
17. The electrical plug connector of claim 16 wherein the first engagement slit is formed at a distance W from the first side and the second engagement slit is formed at a distance W from the second side.
18. The electrical plug connector of claim 16 further comprising a retention mechanism formed on the body and operable to provide secure engagement between the plug connector and a corresponding receptacle connector when the plug connector mates with the corresponding receptacle connector, wherein the retention mechanism comprises at least one raised springy holder raised outwardly from one of either the top plate or the bottom plate of the body, the raised springy holder providing compressive action when the plug connector mates with a corresponding receptacle connector.
19. The electrical plug connector of claim 15 further comprising a plug assembly attached to the body for coupling an electrical cable to the connector.
20. An electrical plug connector comprising:
a body having a top plate, a bottom plate, a first side and a second side, the body having a width W and a depth D, wherein the first and second sides are smaller relative to the top and bottom plates providing a substantially flat body;
an array of electrodes extending in the direction of the depth D, the array of electrodes being positionally secured by insulating material to an interior surface of the body;
a retention mechanism formed on the body and operable to provide secure engagement between the plug connector and a corresponding receptacle connector when the plug connector mates with the corresponding receptacle connector, wherein the retention mechanism comprises at least one raised springy holder raised outwardly from a plate of the body, the raised springy holder providing compressive action when the plug connector mates with a corresponding receptacle connector; and
first and second slits formed on the top plate of the body extending in the direction of the depth D, the first slit being formed at a distance S1 from the first side and the second slit being formed at a distance S2 from the second side,
wherein the array of electrodes is disposed between the first and second slits such that there are no electrodes between a slit and its respective side, and
wherein the first and second slits facilitate insertion alignment when the plug connector mates with a corresponding receptacle connector.
21. The electrical plug connector of claim 20 wherein each of the outermost electrodes of the array of electrodes is spaced away from its respective side by a distance that is no less than S1 or S2.
22. The electrical plug connector of claim 21 wherein each of the first and second slits has a length that is about two thirds of the depth D of the body.
23. The electrical plug connector of claim 20 further comprising first and second springy retention pins protruding from the first and second sides, respectively, the retention pins providing releasable locking mechanism when the electrical connector mates with another connector.
24. The electrical plug connector of claim 20 further comprising a plug assembly attached to a rear edge of the body for coupling an electrical cable to the body.
25. The electrical plug connector of claim 24 wherein the plug assembly comprises a mechanism for retracting the springy retention pins into the body of the electrical connector to release the locking mechanism.
26. The electrical plug connector of claim 20 wherein the slits are formed by one of either cutting through the top plate or molding them into the top plate.
27. The electrical plug connector of claim 20 wherein the top plate and the bottom plates are made of metal.
28. The electrical plug connector of claim 20 wherein each of the first and second slits begins at a front edge of the top plate.
US12613474 2003-04-30 2009-11-05 Plug connector Active USRE43780E1 (en)

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US10426218 US6776660B1 (en) 2003-04-30 2003-04-30 Connector
US12613474 USRE43780E1 (en) 2003-04-30 2009-11-05 Plug connector

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US12613474 USRE43780E1 (en) 2003-04-30 2009-11-05 Plug connector

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US11334820 Active USRE41224E1 (en) 2003-04-30 2006-01-18 Connector
US12613474 Active USRE43780E1 (en) 2003-04-30 2009-11-05 Plug connector
US12613482 Active USRE43796E1 (en) 2003-04-30 2009-11-05 Receptacle connector

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US11334820 Active USRE41224E1 (en) 2003-04-30 2006-01-18 Connector

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