JPH0321018Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application The invention consists of a connector housing having a large number of contacts, and a lid covering the surface of the connector housing from which the male terminals of the contacts protrude.
The present invention relates to a connector with a lid, in which the male terminal of the contact is inserted through the lid and protrudes to the outside.

Conventional technology As the connector with a lid, the above-mentioned Japanese Patent Publication No. 54-38306,
Jitsukō 61-15573 etc. are known.

These connectors have a large number of contacts arranged and held in an elongated connector housing, have a male terminal formed at one end of the contact protrude from the surface of the connector housing, and cover the surface of the connector housing from which the male terminal protrudes. The contact is held by coupling the lid and the connector housing so that the male terminal is inserted through the lid, and the lid prevents flux from penetrating into the contact housing hole. Efforts are being made to prevent this.

In this type of connector with a lid, including the former known example, the press-fit claw provided on the contact is press-fitted and fixed into the inner wall of the contact accommodation hole of the connector housing, and then the lid is fitted and the male is inserted into the through hole provided in the lid. It has a configuration in which the terminal is inserted through it.

However, when the contact is press-fitted into the contact receiving hole of the connector housing, the contact shaft is likely to be displaced, which may impede fitting of the lid and insertion of the male terminal into the through hole.

Further, when the contacts are arranged in a high density, the partition wall of each contact receiving hole becomes very thin, so that there is a possibility that the press-fitting of the contacts may cause flakes in the partition wall.

On the other hand, the latter known example attempts to fix the contact without performing the above-mentioned press-fitting, and a wide part that is long in the axial direction is formed in the middle part of the contact, and a shoulder part at one end of the wide part is formed in the middle part of the contact. The contact is engaged with the step formed on the inner wall of the contact receiving hole of the connector housing, and the shoulder at the other end of the wide portion is brought into contact with the surface of the lid, and the contact is inserted into the step of the connector housing by joining the connector housing and the lid. The contact is held between the cap and the surface of the lid to prevent the contact from coming off and to hold it.

Problems to be Solved by the Invention As mentioned above, when implanting contacts, the method of press-fitting the connector housing into the inner wall of the contact receiving hole has problems such as displacement and deformation of the contacts and cracks in the hole partition wall. .

In the latter example, such defects can be prevented, but due to manufacturing tolerances, resin shrinkage, etc., the gap between the shoulder at one end of the wide contact portion and the stepped portion, as well as the shoulder at the other end of the wide contact portion, may be affected. Backlash is likely to occur between the cap and the surface of the lid, and there is a risk that the contact may move loosely within the contact housing hole. Such backlash is aggravated by warping of the elongated lid.

In addition, in any of the conventional examples, it is not possible to connect the connector housing after forming a semi-assembly of the lid and the contacts by planting the contacts on the lid due to the structure, and the male terminal is attached to the lid. For reasons such as the need to insert the contacts relatively closely into the through-hole, it is necessary to match the contacts accurately and insert them. The method of inserting the male terminal into the cap requires skill to align the male terminal group and the through-hole group of the lid, and has the drawback that it requires assembly time.

In the latter example, in order to ensure that the shoulder of the contact contacts the surface of the lid, the inner surface of the lid does not come into close contact with the surface of the connector housing, but instead there is a space between the lid and the surface of the connector housing. Since the shoulder portion is configured to engage within the formed space, it has the disadvantage of being bulky.

The present invention has been provided in order to improve the above-mentioned problems.

Means for Solving the Problems The present invention provides the connector with a lid, in which a first positioning piece is provided in a portion extending into the through hole of the lid of the contact, and a first positioning piece is provided in a portion extending into the contact receiving hole. Two positioning pieces are provided, each positioning piece is formed of a protruding piece projecting left and right from both side edges of the contact, and the first positioning piece is recessed into a positioning hole provided at one open end of the lid. and is configured to be supported on the bottom wall of the positioning hole, and the second positioning piece is inserted into the contact housing hole and engaged with a step formed on the inner wall of the housing hole. .

In conjunction with this, the present invention further inclines the first positioning piece into the positioning hole so that it is flush with the surface of the lid through which the positioning hole opens, thereby providing close support between the lid and the surface of the connector housing. This is a configuration that makes it possible.

Furthermore, a press-fitting claw into the inner wall of the through-hole is formed in the contact portion extending into the through-hole of the lid, and the first
The second positioning piece is used together with a positioning piece to press-fit the contact into the lid, and the second positioning piece is used as a press-fitting means for the inner wall of the contact receiving hole of the connector housing, so that the contact can be inserted into the lid and the connector housing. The structure is such that it can be fixed.

Function According to the present invention, the first positioning piece inserted into the positioning hole of the through-hole opening of the lid body and the second positioning piece inserted into the contact accommodation hole work together to deflect the contact. In addition to exhibiting a good stopping effect and retaining effect, the first positioning piece is invaginated into the positioning hole and the press-fitting claw is press-fitted to plant the contact at a constant height on the lid body. After temporarily assembling the contacts to the lid, they can be inserted into the connector housing at once and the two can be properly assembled. Normally, the contact body portion is inserted relatively gently into the contact receiving hole, so that the contact mounted on the lid can be inserted more easily.

Furthermore, by recessing the first positioning piece into the positioning hole so that it is at the same level as the lid surface, it is possible to adopt a covered form in which the lid body is closely supported on the surface of the connector housing, and therefore the connector can be It is possible to reduce the bulk and effectively prevent the lid from warping or bending.

Furthermore, a means is provided for press-fitting the male terminal of the contact into the through-hole of the lid body using a press-fitting claw, and a means is also provided for press-fitting a second positioning piece into the inner wall of the contact accommodation hole sufficiently distant from the press-fitting location. In addition to increasing the above-mentioned steady rest effect, the pressing force of the above-mentioned vertically spaced parts is significantly reduced compared to the conventional case where the contact relied solely on press-fitting into the inner wall of the contact insertion hole. Even with a very weak press-in force, both press-fit parts work together to achieve strong contact implantation, and it is possible to provide a connector with a lid that exhibits stable performance against external forces when inserting and removing objects to be connected. .

Further, according to the present invention, the lid body can be brought into close contact with the surface of the connector housing, and the first positioning piece of the male terminal inserted into the through hole of the lid body is recessed into the positioning hole, and furthermore, the press-fitting claw is inserted into the positioning hole. Since it is press-fitted, it is possible to significantly improve the flux shielding effect when the male terminal is soldered to the wiring board.

Embodiments Examples of the present invention will be described below with reference to FIGS. 1 to 4.

1 indicates a connector housing, and 2 indicates a lid body. The connector housing 1 has a large number of contact receiving holes 3. The contact receiving holes 3 are arranged in alignment in the longitudinal direction, and both ends thereof are open at a pair of opposing surfaces 1a and 1b of the connector housing 1.

4 indicates a contact. The Santact 4 has a female terminal portion 4a at one end and a male terminal portion 4b at the other end. The female terminal portion 4a is accommodated in the contact receiving hole 3 and is arranged to make elastic contact with the terminal to be connected inserted into the contact receiving hole 3, and the male terminal portion 4b is accommodated in the contact receiving hole 3 of the connector housing 1. One surface 1a where one end of the accommodation hole 3 is open
It protrudes from the hole and is used for solder connection to a connection hole of a printed wiring board, etc.

The lid body 2 has a large number of through holes 5 corresponding to the male terminal portions 4b, and is coupled so as to cover the surface 1a of the connector housing from which the male terminal portions 4b protrude, and is closely stacked on the surface 1a. At the same time, the male terminal portion 4b is inserted into the through hole 5 and projected to the outside.

As the coupling means, tightening seats 6 are provided extending from both ends of the lid body 2, and engagement protrusions 7 are provided on both longitudinal edges thereof. On the other hand, clamping seats 10 corresponding to the clamping seats 6 are provided at both ends of the connector housing 1, and lid regulating walls are provided on both longitudinal edges of the surface 1a to regulate both longitudinal edges of the lid 2. 8, defining a lid fitting part 9 between the inner surfaces of the opposing lid regulating walls 8, and an engagement part 9 with which the engaging protrusion 7 of the lid 2 engages with the inner surface of the lid regulating wall 8. A combined step portion 11 is provided.

The engaging protrusion 7 and the engaging stepped portion 11 engage with each other when the lid 2 is fitted into the lid fitting portion 9 and superimposed on the surface 1a of the connector housing. Let be the connected state. At this time, the tightening seats 6 and 10 are in an overlapping state, and the tightening seats 6 and 1
It is fixed to a printed wiring board or the like using the mounting holes 12 and 13 provided at 0.

By coupling the connector housing 1 and the lid 2, the contacts 4 are captured between the two,
The contact is held in the contact accommodation hole 3 without play.

As means for capturing the contact 4, the contact 4 is provided with a first positioning piece 14 and a second positioning piece 15. The first positioning piece 14 is the contact 4
The second positioning pieces 15 are formed of projecting pieces extending in opposite directions from both side edges of the contact 4 and are arranged in the contact portion extending into the through hole 5 of the lid body 2. The receiving hole 3 at the base of the female terminal portion 4a is formed by protruding pieces projecting in mutually opposite directions.
The contact portion extends within the contact portion. Due to the above arrangement, the first and second positioning pieces 14 and 15 are spaced apart from each other with a sufficient distance W in the axial direction of the contact, and as shown in FIG.
An inclined portion is provided between the positioning piece 14 and the second positioning piece 15, and the female terminal portion 4a and the male terminal portion 4b are arranged with their phases shifted back and forth. At the same time, by arranging the first and second positioning pieces such that the first positioning piece 14 and the second positioning piece 15 are arranged with their phases shifted back and forth, a recessed part 16 is formed between the two positioning pieces. The recessed part 16 having the interval W functions as an insertion part of a jig when press-fitting the contact 4 into the lid body 2. At the same time, the recessed notch 16 promotes the anti-sway effect of the first and second positioning pieces 14 and 15 and the press-fitting effect of the second positioning piece 15.

On the other hand, a positioning hole 5a is connected to one open end of the through hole 5 of the lid body 2. The positioning hole 5a faces one opening of the contact receiving hole 3 on the surface 1a side of the connector housing 1.

The first positioning piece 14 is inserted into the positioning hole 5a.
to invaginate. The positioning hole 5a is the first positioning piece 1
The first positioning piece 1 has approximately the same external shape and dimensions as 4.
The front, rear, left and right sides of the positioning hole 5a are regulated by the inner circumferential wall of the positioning hole 5a, and at the same time supported by the bottom wall thereof. The contact 4 is prevented from swinging forward, backward, left and right by being restricted by the inner circumferential wall of the positioning hole 5a, and is prevented from coming off by being supported by the bottom wall. At the same time, the four groups of contacts are planted on the lid 2 at the same height by being supported by the bottom wall. Preferably, the first positioning piece 14 is recessed so as to be flush with the surface of the lid 2, and does not protrude onto the same surface.

Further, press-fit claws 18 are protruded from both side edges of the contact portion extending into the through hole 5 of the lid body 2, and are arranged adjacent to the male terminal portion side of the first positioning piece 14. The male terminal portion 4b of the contact 4 is inserted into the through hole 5 of the lid body 2, and the press-fit claw 18 is press-fitted into the inner wall of the through hole 5, and at the same time, the first positioning piece is indented into the positioning hole 5a as described above. do.

After the contacts 4 are planted on the lid body 2 as described above and a temporary assembly of the lid body 2 and the contacts 4 is formed, the female terminal portions 4a are inserted all at once into the contact accommodation holes 3 of the connector housing 1. . By inserting the female terminal portion 4a of the contact 4 all at once, the second positioning piece 15 is inserted into the contact housing hole 3 and engaged with the engagement step portion 17 formed on the inner wall of the contact housing hole 3. shall be. In this engaged state, the lid body 2 is in substantially close contact with the surface 1a of the connector housing 1.

A guide groove 19 extending from the opening on the surface 1a side to the engagement step 17 is formed in the inner wall 3 of the contact accommodation hole, and the second positioning piece 15 is connected to the guide groove 19.
to form the above-mentioned engaged state.

The present invention further uses the second positioning piece 15 as a means for press-fitting into the inner wall of the contact receiving hole 3 of the connector housing 1. That is, the second positioning piece 15 is press-fitted into the guide groove 19, and by the press-fitting and the regulation of the guide groove 19, it is prevented from swinging back and forth and from side to side, and at the same time, by the step part 17, it is prevented from coming off in the direction of the female terminal part 4a. We aim to As a result, the contact 4 can be reliably prevented from steadying due to the first and second positioning pieces 14 and 15 spaced apart from each other.

By press-fitting the contact 4 into the inner wall of the through-hole 5 of the lid body 2 in this manner and also press-fitting it into the inner wall of the contact-accommodating hole 3 which is sufficiently spaced from the press-fitting part,
At the same time, it is possible to increase the above-mentioned steady rest effect, and at the same time, it is possible to significantly reduce the press-fitting force of the above-mentioned vertically spaced parts, compared to the case where the press-fitting was only dependent on the contact insertion hole's inner wall. Even during input, both press-fit parts work together to ensure a strong contact implantation.

Effects of the Invention As explained above, according to the present invention, the first positioning piece is inserted into the positioning hole of the through-hole opening of the lid body, and the second positioning piece is inserted into the contact receiving hole of the connector housing. and the recessed part formed between both positioning pieces cooperate to reliably exert the effect of preventing the contact from steadying and coming off.
In addition, the first positioning piece can be inserted into the positioning hole and the contact can be planted on the lid body at a constant height, and after the contact is temporarily assembled on the lid body, it can be attached to the connector housing all at once. Both can be inserted and assembled easily and properly.

Furthermore, by recessing the first positioning piece into the positioning hole so that it is at the same level as the lid surface, it is possible to adopt a covered form in which the lid body is closely supported on the surface of the connector housing, and therefore the connector can be It is possible to reduce the bulk and effectively prevent the lid from warping or bending.

Furthermore, by press-fitting the male terminal of the contact into the through-hole of the lid using a press-fitting claw, and by press-fitting the second positioning piece into the inner wall of the contact housing hole which is sufficiently distant from the press-fitting point, the above-mentioned vibration can be suppressed. In addition to increasing the stopping effect, compared to the conventional case where the contact only relied on press-fitting into the inner wall of the contact insertion hole, it is possible to significantly reduce the press-fitting force of the above-mentioned vertically spaced parts. Even with a weak press-in force, both press-fitting parts can work together to achieve strong contact implantation, and it is possible to provide a connector with a lid that exhibits stable performance against external forces when inserting and removing objects to be connected.

Further, according to the present invention, the lid body can be brought into close contact with the surface of the connector housing as described above, and the first positioning piece of the male terminal is invaginated into the positioning hole of the lid body, and furthermore, the press-fitting claw is press-fitted. Therefore, the flux shielding effect during solder mounting of the male terminal to the wiring board can be significantly improved.

Further, the press-fitting claw is press-fitted into the lid side, and the second positioning piece is press-fitted into the connector housing side, so that the two can be more firmly connected.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of a connector showing an embodiment of the present invention, with the connector housing partially cut away, and FIG. 2A is an enlarged cross-sectional view showing one end of the contact half-inserted into the lid. Figure B is an enlarged cross-sectional view showing a state in which one end of the contact is inserted through the lid and the other end of the contact is half-inserted into the connector housing, and Figure C is an enlarged sectional view showing the contact fully housed in the connector housing and connected to the lid. Figure D is a cross-sectional view showing the first positioning piece inserted into the positioning hole; Figure E is a cross-sectional view showing the second positioning piece pressed into the guide groove; FIG. 3 is a cross-sectional view showing a state in which the connector housing and the lid are coupled, with the contacts omitted, and FIG. 4 is a side view of the contacts. DESCRIPTION OF SYMBOLS 1...Connector housing, 1a, 1b...Surface, 2...Lid body, 3...Contact accommodation hole, 4...
...Contact, 4a...Female terminal part, 4b...Male terminal part, 5...Through hole, 5a...Positioning hole, 14
...first positioning piece, 15...second positioning piece,
17... Engagement step portion, 18... Press-fitting claw, 19...
Guide groove.

Claims (1)

[Claims for Utility Model Registration] (1) A connector housing is provided with a large number of contact receiving holes, both ends of the contact receiving holes are opened on opposing surfaces of the connector housing, and one surface of the connector housing is provided with a lid. In the connector with a lid, the male terminal at one end of the contact housed in the contact housing hole is inserted into a through hole provided in the lid body and protrudes to the outside. A first positioning piece consisting of a pair of projecting pieces extending out is provided, and a second positioning piece consisting of a pair of projecting pieces spaced apart from the first positioning piece and extending from the left and right side edges of the contact is provided, A recessed portion is formed between the two positioning pieces by the overhang of the positioning piece and the second positioning piece, and one opening end of the through hole provided in the lid body is positioned opposite to one opening of the contact receiving hole. The holes are interconnected, the first positioning piece is inserted into the positioning hole and supported on the bottom wall of the positioning hole, and the second positioning piece is inserted into the contact accommodation hole and formed on the inner wall of the accommodation hole. A press-fitting claw is formed in the contact portion extending into the through-hole of the lid body to be press-fitted into the inner wall of the through-hole, and the second positioning piece is engaged with the step portion, and the second positioning piece is inserted into the inner wall of the contact receiving hole of the connector housing. A connector with a lid, characterized in that it is configured to be press-fitted into the connector. (2) The lid according to claim 1 of the utility model registration claim, characterized in that the first positioning piece is recessed into the positioning hole so as to be flush with the surface of the lid where the positioning hole opens. connector.