JP2546431Y2 - Bottom entry-connector - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bottom entry connector used for connection between substrates in consumer equipment, OA equipment, and the like, and has a structure capable of preventing flux at the time of soldering from entering a pin insertion port of a receptacle connector. It was made.

[0002]

2. Description of the Related Art A bottom entry connector is a connector which is often used for a single-sided board in which various electronic components are mounted only on one side (front side) of the board, and has conventionally been mounted on the surface of a board A as shown in FIG. There is one in which a pin contact E of a plug connector D is fitted into the pin insertion / extraction opening C of the receptacle connector B from the back side of the board A.

[0003] The receptacle connector B has a contact portion G in contact with a pin contact E in a receptacle body F made of an insulating material, and a grip portion which supports the contact portion G and is locked in the receptacle body F. H, and a terminal portion I protruding out of the body F from the grip portion H,
In addition, a large number of receptacle contacts J are provided, in which the contact portions G are curved to have a spring property. On the bottom surface K of the receptacle body F, there are formed a through hole L through which the terminal portion I of the receptacle contact J can pass, and a pin insertion / extraction opening C into which the pin contact E of the plug connector D is inserted.

Further, a cover N is attached to the pin insertion / extraction port C, which has a spring property, and has a pin contact E.
6 before inserting (before being pushed by the pin contact E)
The pin insertion / extraction port C is closed to the lower left from the position shown in FIG. As a result, the flux generated when soldering the terminal portion I of the receptacle contact J inserted into the through hole O of the substrate A enters the pin insertion / extraction opening C from the through hole P of the pin contact E, and The receptacle contact J in the insertion opening C is prevented from adhering to the pin contact portion G.

[0005]

However, since the lid N shown in FIG. 6 is pushed up by the pin contact E and pushed into the inside, the lid N is moved downward so that the lid N completely seals the pin insertion opening C. When the pin contact E is lowered, the pin contact E does not open inward when the pin contact E is inserted, so that a small gap is formed between the lid N and the pin insertion / extraction opening C. For this reason, in the bottom entry connector of FIG. 6, when the terminal portion I is soldered to the substrate A, the flux entering from the pin insertion / extraction port C rises through the gap and adheres to the pin contact portion G of the receptacle contact J. Therefore, there is a problem that the contact portion G and the pin contact E cause poor contact.

SUMMARY OF THE INVENTION An object of the present invention is to provide a bottom entry connector which can prevent flux generated when soldering a receptacle connector to a substrate from entering through a pin insertion / extraction opening of a receptacle body.

[0007]

In the bottom entry connector of the present invention, a large number of receptacle contacts 5 having pin contact portions 3 and terminal portions 4 are arranged in a receptacle body 2 of a receptacle connector 1 formed of an insulating material. On the bottom surface 21 of the receptacle body 2, a large number of pin insertion / extraction openings 8 into which the pin contacts 7 of the plug connector 6 are inserted are formed. When the pin contacts 7 are inserted through the pin insertion / extraction openings 8, the pin contacts 7 are connected to the receptacle contacts 5 A bottom entry connector that makes electrical contact with the pin contact portion, wherein the bottom surface of the receptacle body is
A plate-shaped shutter 10 having a through hole 9 formed in the same arrangement as the pin insertion / extraction opening 8 is slidably mounted along the bottom surface 21, and the pin insertion / extraction opening 8 can be opened and closed by sliding the shutter 10. It was done.

[0008]

[Action] In the bottom entry connector of the present invention, FIG.
As shown in FIG. 2, a plate-shaped shutter 10 having a through hole 9 formed in the same arrangement as the pin insertion / extraction port 8 on the bottom surface 21 of the receptacle body 2 in which the pin insertion / extraction port 8 of the pin contact 7 is formed.
Before the pin contact 7 is inserted into the pin insertion opening 8, the shutter 1 is slidable along the shutter 1.
5 is slid in the direction of the arrow shown in FIG. 5A so that the insertion / extraction opening 8 of the receptacle body 2 is closed by the shutter 10, so that the terminal portion 4 of the receptacle contact 5 can be soldered to the substrate 11. Flux cannot enter the inside through the pin insertion / extraction opening 8. For this reason, the flux does not adhere to the pin contact portion 3 of the receptacle contact 5, and a contact failure does not occur. Then, only when the pin contact 7 of the plug connector 6 is fitted into the pin insertion / extraction opening 8, the shutter 10 is slid in the direction of the arrow shown in FIG. The pin contact 7 can be inserted into 8.

[0009]

Embodiment 1 In FIGS. 1 and 3 showing an embodiment of the bottom entry connector of the present invention, reference numeral 2 denotes a receptacle body of a bottom entry connector formed of an insulator such as plastic, and reference numeral 5 denotes a receptacle body 2 thereof.
Receptacle contacts inserted and arranged inside the.

The receptacle contact 5 is formed by bending a die-cut thin metal plate having electrical conductivity, and as shown in FIG. 2, a locking portion 12 inserted and locked in the receptacle body 2, and a plug connector 6, a pin contact portion 3 that presses against the pin contact 7 and a terminal portion 4 protruding from the bottom surface 21 of the receptacle body 2 are formed.

The locking portion 12 has a substantially U-shaped cross section in the axial direction (vertical direction), and the elongated pin contact 7 can pass through the inside from the bottom upward. A pin contact portion 3 having a structure in which two plate-like contact beams 13 having spring properties are opposed to each other is formed at an upper end edge of the locking portion 12. The locking portion 12
An L-shaped terminal portion 4 is formed on the edge of the lower end of the terminal L, which once protrudes outward and is bent downward.

The receptacle body 2 has a space 14 into which the receptacle contact 5 shown in FIG. 2 is inserted and latched. The receptacle contact 5 is arranged in two stages in the longitudinal direction of the receptacle body 2. A pin insertion hole 8 for inserting the pin contact 7 into the pin contact portion 3 of each receptacle contact 5 is formed in the bottom surface 21 of the receptacle body 2 from which the terminal portion 4 of each receptacle contact 5 projects.

On the bottom surface 21 of the receptacle body 2, there is a plate-shaped shutter 10 mounted so as to slide along the bottom surface 21. The shutter 10 is formed of the same insulating material as the receptacle body 2, and has a through hole 9 having the same arrangement and the same size as the pin insertion opening 8.

Further, as shown in FIGS. 4 and 5, the ends of the plug connector 6 are tapered at both ends, and the guide projections 1 have the ends slightly projecting from the ends of the pin contacts 7.
6 and 17 and guide holes 1 for inserting the guide protrusions 16 and 17 at both ends of the receptacle body 2.
8 and 19 are formed, and one end 20 of the shutter 10 is tapered and protrudes inside one of the guide holes 19. Before the connector is fitted as shown in FIG. 5A, the pin insertion / extraction opening 8 is closed so that the through hole 9 of the shutter 10 is shifted from the pin insertion / extraction opening 8, and FIG.
The guide projection 1 inserted into the guide hole 19 before the pin contact 7 enters the through hole 9 when the connector is fitted as shown in FIG.
7 pushes up one end 20 of the shutter 10 and at the same time slides the shutter 10 in the direction of the arrow, so that the through hole 9 of the shutter 10 coincides with the pin insertion opening 8.

[0015]

According to the bottom entry connector of the present invention, the pin insertion hole 8 of the bottom surface 21 of the receptacle body 2 is provided.
Is openable and closable by a sliding shutter 10. Therefore, if the soldering operation is performed in a state where the pin insertion / removal opening 8 is closed by the shutter 10, the flux does not enter the pin insertion / removal opening 8, so that the pin of the receptacle contact 5 The contact portion 3 is not contaminated with the flux and does not cause poor contact with the pin contact 7.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a bottom entry connector of the present invention.

FIG. 2 is a perspective view showing one embodiment of a receptacle contact used in the bottom entry connector of FIG. 1;

FIG. 3 is a sectional view of the bottom entry connector of FIG. 1;

FIG. 4 is a perspective view showing one embodiment of the plug connector of FIG. 1;

FIGS. 5A and 5B are cross-sectional views showing a state when a plug connector is fitted to the bottom entry connector of FIG. 1;

FIG. 6 is a sectional view showing an example of a conventional bottom entry connector.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Receptacle connector 2 Receptacle body 3 Pin contact part 4 Terminal part 5 Receptacle contact 6 Plug connector 7 Pin contact 8 Pin insertion opening 9 Through hole 10 Shutter

Claims (1)

(57) [Scope of request for utility model registration] A large number of receptacle contacts having pin contact portions and terminal portions are arranged in a receptacle body of a receptacle connector made of an insulating material, and a plug connector is provided on a bottom surface of the receptacle body. A plurality of pin insertion / extraction openings 8 into which the pin contacts 7 are inserted are formed. When the pin contacts 7 are inserted through the pin insertion / extraction openings 8, the pin contacts 7 are electrically connected to the pin contact portions 3 of the receptacle contacts 5. The bottom surface 21 of the receptacle body 2
A plate-shaped shutter 10 having a through hole 9 formed in the same arrangement as the pin insertion / extraction opening 8 is slidably mounted along the bottom surface 21, and the pin insertion / extraction opening 8 can be opened and closed by sliding the shutter 10. Bottom entry connector characterized by the following.