JP3164620B2 - Connector with contact protection means - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector for connecting an external electric device to a printed wiring board, and more particularly to a connector casing for contacting a space close to the casing to obtain a connection to the printed wiring board. The present invention relates to an improvement in a connector in which a connecting portion of a child is extended and exposed.

[0002]

2. Description of the Related Art Mounted on a substrate such as a printed wiring board,
In a board connection connector that forms an electrical connection between a board and an electric wire, an electric device, or another board, a non-connection portion of a contact in an external space of the connector casing, that is, a connection portion for an external electric device or the like. 2. Description of the Related Art There is known a connector in which a connecting portion connecting a connecting portion to a substrate is exposed. This type of board connection connector is often found in a type in which a contact surface with a board and a fitting surface with a connection partner such as an electric device are not arranged in parallel. FIG. 5 shows such a conventional board connection connector. The connector 1 is of a so-called side connection type, and a contact surface 2 that contacts the substrate P and a fitting surface 3 that fits with a connection partner are arranged substantially orthogonally. A plurality of contacts 5 installed in a casing 4 of the connector 1 so as to be insulated from each other are fixed to the substrate P and connected to a leg 6 connected to a printed circuit or the like, and a sliding member connected to a contact of a connection partner. A contact portion 7 is supported by an insulator 8 in the casing 4 at a base portion of the leg portion 6 and the sliding contact portion 7. As shown, each contact 5 exposes a connecting portion 9 between the leg 6 and the sliding contact 7 to the outside of the insulator 8. This is necessary in the work of press-fitting the contact 5 into the insulator 8 of the connector, and at the same time, it has the effects of reducing the weight of the connector and improving heat dissipation.

[0003]

With the miniaturization and high-density integration of electronic components, in such a connector in which the connecting portions of the contacts are exposed to the external space of the connector casing, the number of contacts is increased and the number of contacts is increased. The diameter of the contact may be reduced in order to promote the narrow pitch. In this case, the strength of the contact with respect to the external force is weakened, and there is a concern that a short-circuit may occur at the above-mentioned connecting portion between adjacent contacts due to the fact that an object comes into contact with the exposed connecting portion from the outside to bend the contact. . Further, in order to increase the number of contacts, a connector of the type in which the above-mentioned conventional connectors are stacked in a two-stage manner has already been proposed, but in this connector, the contacts arranged at the upper stage are structurally inevitable. As a result, the resistance of the contact to external force is similarly weakened, which may cause a short circuit between adjacent contacts.

The present invention has been devised and improved to solve the above-mentioned problems, and an object of the present invention is to provide a connector having a contact having the connecting portion exposed in an external space of a casing. It is another object of the present invention to provide a connector that can protect the exposed connecting portion from external force to prevent a short circuit, and can increase the number of contacts and narrow the pitch with high reliability.

[0005]

To achieve the above object of the Invention The present invention includes a body having a fitting portion fitted to the connection partner, a plurality of contacts which are supported by insulated from each other on the main body Ah
Therefore, the connecting portion between the connecting portions at both ends is opposite to the fitting portion.
Multiple contacts exposed to the outside of the body on the opposite side
It is located on the opposite side of the body and keeps the connection of multiple contacts
The connector you and a contact protection means for protecting,
The contact protection means is detachably attached to the main body,
Cover the space on the opposite side of the
A shielding member that forms a surrounding section is provided, and the shielding member includes:
An outer wall portion forming a compartment, and a plurality of contacts inside the outer wall portion.
It is extended corresponding to the position of the connecting part of the tentacle, and
A plurality of wall portions for preventing mutual contact of the connecting portions,
At least one of the wall portions engages the body to shield
Provided is a connector characterized by fixing a member to a main body .

According to a preferred embodiment of the present invention, a shielding portion
The material communicates with the outside of the compartment to allow liquid to drain from the compartment.
SUMMARY OF THE INVENTION A connector is provided that is provided with an opening portion that enables the opening .

[0007]

The exposed connecting portions of the plurality of contacts are protected from external force by a shielding member constituting the contact protection means, and are kept separated from each other. Therefore, the bending of the connecting portions of the contacts due to the external force is prevented, and a failure such as a short circuit between the adjacent contacts is prevented. In addition, the shielding member
Communicates the picture to the outside and allows the liquid to drain from the compartment
An opening portion provided lever, the liquid has entered the compartment by washing step, etc., it is effectively discharged to the outside through the opening portion.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in more detail with reference to the accompanying drawings. Referring to FIGS. 1 to 3, a connector 10 for connecting a board according to an embodiment of the present invention will be described.
Is a so-called side connection type, and includes a plurality of contacts 1
A second body or connector main body 14 having been insulated from each other and detachably attached to the connector main body 14, the shield member is a contact protection means for protecting the connecting portion 12a exposed in the plurality of contacts 12 That is, the protective cover 16 is provided. The connector body 14 includes a printed wiring board or the like.
And a mating surface 14b that mates with a connection partner and a mating surface 14b that mates with a connection partner. On the fitting surface 14b of the connector body 14, two fitting portions 20 are provided in two vertical stages via a spacer 18, and a plurality of contacts 12 are arranged on each of the fitting portions 20. Each fitting part 2
0, a locking member 2 that engages with a mating connector (not shown) at the time of mating to maintain reliable mating with each other.
2 are provided.

The plurality of contacts 12 have legs 24 fixed to the substrate P and connected to a printed circuit or the like, and sliding contacts 26 connected to contacts (not shown) of a connection partner. The insulator 3 in the casing 28 of the connector main body 14 is provided at the base of the leg 24 and the sliding contact 26.
Supported by 0. Each contact 12 includes an insulator 30
In order to perform the work of press-fitting the contact 12 into the insulator 3, the connecting portion 12a between the leg 24 and the sliding contact 26 is connected to the insulator 3
0 is exposed to the outer space. These connecting parts 12
a is bent at a substantially right angle, and is disposed in a concave portion 32 formed by the casing 28 and the insulator 30 of the connector main body 14. Connection part 12 due to structural necessity
As shown in FIG. 3, the length of “a” is longer in the contact 12 arranged in the upper fitting section 20 than in the lower row.

As shown in FIG. 4, the protective cover 16 for protecting the connecting portions 12a of the plurality of contacts 12 has a wall surface 34 which is an outer wall portion bent in a substantially L-shaped cross section. The concave portion 32 of the main body 14 is closed to form a section 36 (see FIG. 3) shielded from the external space. The protective cover 16 has locking claws 38 in the vicinity of both ends in the longitudinal direction.
The protective cover 16 is fixed to the concave portion 32 by fitting into a groove 39 (see FIG. 2) provided on the wall surface of the. Outer wall of protective cover 16
The inner side of the portion or wall 34, a plurality of wall portions component extending parallel to each other in the vertical direction, a plurality of ribs 40 are provided. These ribs 40 are provided on the wall surface 3 of the protective cover 16.
4 as well as the partition 36 when mounted in the recess 32.
Interposed between adjacent contacts 12 within the contact 12
The effect of preventing short circuit between them is improved. Also, a plurality of ribs 40
And rib pieces 42 having a slightly larger size are provided at predetermined positions, and the rib pieces 42 are fitted into the plurality of groove holes 18 a provided in the spacers 18 of the connector body 14.
2a is formed. Thus, in this embodiment, the locking claw 3
6, the groove 38, and the protrusion 42a of the rib piece 42 and the spacer 1
8, the slot 18a effectively functions as a locking means, and detachably fixes the protective cover 16 to the recess 32 of the connector body 14.

Further, as shown in FIG. 4, the protective cover 16 has a plurality of through holes 44 penetrating to the upper surface side along the bent portion 34a of the wall surface 34 thereof. Further, the wall surface 34 of the protective cover 16 has a plurality of notches 46 and 48 at both ends 34b and 34c, respectively. These notches 46 and 48 allow the protective cover 16 to be connected to the connector body 14.
The openings 50 and 5 are respectively provided between the connector body 14 and the edge of the casing 28 when mounted in the recess 32 of the connector body 14.
2 (see FIG. 2). The cleaning liquid permeated the through holes 44 and the openings 50 and 52 into the compartments 36 formed inside the protective cover 16 in the cleaning step of cleaning the flux or the like after the electronic component mounting step on the substrate. In this case, it effectively functions as a liquid discharging means for discharging the cleaning liquid. The liquid discharging means is preferably provided at the corner of the section 36 as in this embodiment. In addition, the above-described through hole 44 and the openings 50 and 52 can also be used as a confirmation window for a proper arrangement of the plurality of contacts 12 in the section 36.

In the above embodiment, a detachable protective cover 16 is provided to protect the connecting portion 12a of the contact 12 exposed in the concave portion 32 of the connector main body 14. By removing the protective cover 16 from the connector main body 14 at the time of repairing a failure, an effect of facilitating the approach of the test instrument or the like to the contact 12 is also achieved. However, the gist of the present invention is to provide a contact protection means for protecting the contacts exposed from the casing of the connector from an external force to prevent a failure such as a short circuit.
8 can be formed integrally. However, actually, the contact 12 is connected to the insulator 3 of the connector body 14.
It is preferable that at least the upper surface of the concave portion 32 be open in the step of press-fitting the cover 32 with the protective cover 16 provided separately from the casing 28. The protective cover 16 may be fixed to the casing 28 by the joining means.

[0013]

As is apparent from the above description, the present invention provides a contact protection means for protecting a connecting portion of a plurality of contacts exposed to the outside, which is detachably mounted on the main body.
Since the shield member is provided, bending of the connecting portion of the contact due to external force is prevented, and a failure such as a short circuit between adjacent contacts is prevented. Therefore, in the connector in which the connecting portions of the contacts are exposed, the number of contacts can be increased and the pitch can be reduced with high reliability. In addition, the shielding member communicates the compartment to the outside, and the liquid from the compartment is
If an opening portion that allows the discharge, the penetration liquid into the ward image can be effectively discharged to the outside through the opening portion. Therefore, it is possible to prevent the occurrence of a failure such as a current-carrying failure due to leakage or rust caused by the liquid that has entered the compartment in the washing step or the like.

[Brief description of the drawings]

FIG. 1 is a perspective view of a connector according to an embodiment of the present invention, showing a connector main body and a protective cover in a separated state.

FIGS. 2A and 2B are three views of the connector of FIG.
(B) Back view, (c) Side view.

FIG. 3 is a sectional view taken along line III-III in FIG. 2;

FIG. 4 is a four-sided view of the protective cover of the connector of FIG. 1;
(A) is a plan view, (b) is a rear view, (c) is a side view, and (d) is a front view.

FIG. 5 is a view of a conventional connector, (a) a perspective view, and (b).
FIG. 5 is a sectional view taken along line VV.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 12 ... Contact 12a ... Connection part 14 ... Connector main body 16 ... Protective cover 18 ... Spacer 18a ... Slot 28 ... Casing 30 ... Insulator 32 ... Depression 36 ... Section 38 ... Locking claw 39 ... Groove 40 ... Rib 42 ... Rib Piece 42a ... Protrusion 44 ... Through-hole 46, 48 ... Notch 50, 52 ... Opening

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-1733072 (JP, A) JP-A 64-46976 (JP, U) JP-A 3-26073 (JP, U) JP-A 63- 108188 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01R 13/516 H01R 13/52 H01R 13/46 H01R 12/22

Claims (2)

(57) [Claims] A body having a fitting portion fitted to 1. A connection partner, a plurality of contacts which are supported by insulated from each other to the body
There are, said the connection part between the connection portion of each of the two ends fitting
A plurality of contacts exposed to the outside of the body on the opposite side parts,
The body is arranged on the opposite side of the fitting portion,
Contact protection means for protecting the connection portion of the contact.
The connector you Bei, the contactor protection means, freely mounted is detachably attached to the body
The space on the opposite side of the fitting portion is closed and the plurality of contacts are closed.
A shielding member forming a section surrounding the connecting portion of the tentacle
Comprising a, the shielding member includes an outer wall portion forming said compartments, said outer
Position of the connecting portion of the plurality of contacts inside a wall portion
And interconnecting the connecting portions within the compartment
And a plurality of wall portions for preventing touch.
At least one engages the body to remove the shielding member from the book.
A connector fixed to a body . 2. The communication between the partition and the outside to the shielding member.
Opening to allow the liquid to drain from the compartment
2. The connector of claim 1, wherein said connector is provided.