JPH08250190A - Electric connector - Google Patents

Abstract

PURPOSE: To provide an electric connector in which deformation of terminals is prevented by providing terminal-guiding ribs (guides) integral with a terminal- protecting cover turnably provided on a housing. CONSTITUTION: A terminal 160 is placed in a housing 6. A cover 100 protecting the terminal 160 is turnably pivoted to the housing 6 at one end. A slot 106 into which the contact part 162 of the terminal 160 projects is provided in the cover 100 to correspond to each contact part 162. Ribs (guides) 110, 110' having surfaces 108, 108' for guiding the contact parts 162 are provided near the side edge of the slot 106.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrical connector, and more particularly to an electrical connector suitable for a charging stand on which a telephone slave unit is mounted.

[0002]

2. Description of the Related Art Conventionally, an electrical connector provided with a cover for protecting terminals has been known. For example, as shown in FIG. 8, an electric connector 200 with a cover disclosed in Japanese Utility Model Laid-Open No. 2-146497 is known. The electrical connector 200 includes an insulative housing 202 and a plurality of terminals 206 located in a cavity 204 of the housing 202.
And a cover 208 that protects this terminal 206. The cover 208 is normally biased by a spring (not shown) in the direction away from the housing 202 as shown. When the cover 208 is rotated toward the housing 202 by the external force, the contact portion 212 of the terminal 206 is electrically connected to the terminal (not shown) of the mating connector (not shown) by passing through the slot 210 of the cover 208. Is configured to come into contact with. Since this electric connector 200 is for preventing static electricity, the cover 208 is made of metal and is grounded.

However, the contact portion 212 of the terminal 206 may be deformed by an external force, and as a result, the terminals adjacent to each other may be deformed.
Problems may occur, such as 206 contacting each other or the cover 208.

The present invention has been made in view of the above points, and an object of the present invention is to provide an electrical connector which is less likely to be deformed even when an external force is applied thereto and has no problem such as a short circuit between terminals. .

Another object of the present invention is to provide an electric connector with a cover which prevents the intrusion of dust and dirt.

Still another object of the present invention is to provide an electrical connector having an overstress preventing function for preventing excessive deformation of terminals.

[0007]

The electrical connector of the present invention comprises:
An insulating housing, an elastic terminal having a free end as a contact portion and held by the housing, and a slot rotatably supported by the housing and capable of exposing the contact portion correspond to the contact portion. The cover is made of an insulating material, and a guide portion having a surface for guiding the terminal is provided in the vicinity of the slot.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a partial cross-sectional view showing a part of a charging base 2 of a telephone, to which an electric connector (hereinafter, simply referred to as a connector) 1 of the present invention is attached, and a slave unit 300 of the telephone mounted on the charging base 2. is there. The charging stand 2 includes an upper member 4 and a lower member (not shown), and the connector 1 is held therebetween. The connector 1 is made of an insulating material such as PB.
It has a housing 6 molded from T or the like, a cover 100, and a metal terminal 160 having elasticity. A part of the cover 100 is pivotally attached to the post 8 of the housing 6. The terminals 160 are arranged in the cover 100 and the housing 6, and the terminals 16 are provided in the normal position where no external force is applied as shown in the figure.
0 is covered and protected by the cover 100. Handset 30
0 is mounted on the flat base 10 of the upper member 4. Normally, the base 10 is horizontal for the sake of convenience in the figure, but inside the charging stand 2, it rises about 15 ° to the right in the figure.
It is set in a tilted state. Handset 30 shown by the alternate long and short dash line
0'is in a state where it is about to be placed on the base 10, and the child device 300 indicated by a virtual line shows a state in which it is placed on the base 10.

Next, the connector 1 of the present invention will be described with reference to FIGS. FIG. 2 is a side view in which the connector 1 of FIG. 1 is partially sectioned. The housing 6 has an extension portion 14 having a rear surface 12 in common and an attachment portion 16 provided at the tip of the extension portion 14. A through hole that extends vertically in the mounting part 16
20 are formed. Mounting feet on the bottom 22 of the housing 6
24 are formed. The through hole 20 and the mounting leg 24 are fitted into a boss (not shown) of the upper member 4 and a mounting hole (not shown) of the lower member, respectively, so that the connector 1 is fixedly held between the upper member 4 and the lower member.

The cover 100 has an arm provided at one end thereof.
An opening 119 is provided at 118, and the opening 119 is pivotally attached to the post 8 by the opening 119. The cover 100 is biased in a direction away from the housing by a coil spring 26 wound around the post 8 as shown in the figure. On the outer side of the cover 100, that is, on the slave unit 300 side, a slot 106 that is vertically aligned with the terminal 160 is formed. Further cover 100
Ribs (guide portions) 110, 110 'having flat surfaces 108, 108' for guiding the contact portion 162 of the terminal 160 and its vicinity are formed therein. The shapes of these ribs 110 and 110 'will be described later.

The terminal 160 is inserted into a through hole (not shown) of a substrate (not shown) and soldered to a connecting portion 164, a flat base 166 held in the housing 6, and a base 166.
Has an arcuate portion 168 connecting from the contact portion 162 to the contact portion 162. Arcuate part
The vicinity of 168 is substantially U-shaped, but on the cover 100 side, it is inclined forward toward the contact portion 162 at the free end, that is, in the direction away from the housing 6. The contact portion 162 is further curved toward the housing 6 and then extends upward to the tip 170. In the normal state shown in the figure, the contact portion 1 of the terminal 160
62 is located inside the cover 100 and is protected from the outside. Further, in this state, since the contact portion 162 is covered by the upper wall portion 112 of the cover 100, the contact portion 162 can be protected from dust, dust, and the like coming from above. Further, even if an external force is accidentally applied, the terminal 160 is not directly pressed, so that the deformation of the terminal 100 can be prevented.

FIG. 3 shows a front view of the housing 6 as seen from the front. Here, the front side means the side of the child device 300. The housing 6 has a substantially rectangular main body 28, and the extension 14 extends obliquely upward from the upper portion of the main body 28. An attachment portion 16 is integrally attached to the tip of the extension portion 14. The main body portion 28 is partitioned by partition walls 30 and 30 ', and a cavity 32 that is open forward and upward is formed. The lower part of the cavity 32 is the front wall 34
And bottom walls 35 to form recesses 36, respectively. Grooves 40 are formed in parallel with the rear surface 12 on the rear surface 12 side of the inner walls 38 of the partition walls 30 and 30 '. This groove 40 is located at the base 16 of the terminal 160.
Accepts 6 The groove 40 extends to approximately the middle of the height of the housing 6, and correspondingly the terminal 160
The width of the base portion 166 is also wide so that the portion press-fitted into the groove is formed. The side extending to the arc-shaped portion 168 is formed narrow so as to be housed in the cavity 32. To attach terminal 160 to housing 6, base 16 with arcuate portion 168 at the top.
The 6 is press-fitted into the cavity 32 so as to enter the groove 40.
Insertion is complete when the arcuate portion 168 is received within the recess 36.
Barbs (not shown) project from both sides of the base portion 166 of the terminal 160, and the barbs engage with the housing 6 in the groove 40 to lock the terminal 160.

FIG. 4 is a view of the cover 100 as viewed from the inside, that is, from the rear. As can be seen from this figure, the rib 110 is the slot 106.
The side edges 114 and the flat surfaces 108 of the ribs 110 are arranged adjacent to each slot 106 so that they are flush with each other. Cover 100
Contact part 162 of the terminal 160 when is pressed toward the terminal 160.
And the vicinity of the flat surface is
Will be guided along. The rib 110 ′ is arranged on the upper portion of the cover 100 so as to be adjacent to the rib 110 and to be located approximately in the middle of each slot 106. These ribs 110, 110 'are the covers
It is made of plastic and integrated as 100.
The tips 170 of the free ends 174 of the terminals 160 are formed wide as will be described later, and are separated from each other by the ribs 110 'so that the tips 170 of the adjacent terminals 160 do not come into contact with each other and short-circuit. The rib 110 is formed with a chamfer 116 for easy assembly.

The lower part of the cover 100 has arms 118, 118. Notches 102 and 102 'for forming an opening 119 are formed at the tip of the arm 118 on the outer side and the inner side, respectively, in opposite directions.

FIG. 5 shows the housing 6 with terminals 160 and a cover 10.
It is the front view which looked at the connector 1 with which 0 was assembled from the front.
The portion visible from the slot 106 is the contact portion 162 of the terminal 160. The contact portion 162 has a bead 172 protruding forward, that is, on the front side of the drawing. When contacting the terminal of the child device 300, regardless of the inclination angle of the terminal 160, the contact is always made with the bead 172, so that the connection is highly reliable. Terminal
Since the tip 170 of the free end 174 of the 160 is formed wide as described above, when the cover 100 is pressed toward the housing 6 by an unexpected external force, the tip 170 abuts on the inner surface of the cover, It prevents terminal 160 from protruding excessively from slot 106. This reduces the risk that the terminal 160 will be deformed by an external force. Coil spring 26
Is wound around one of the posts 8 and 8 ', but it may be attached to both sides if necessary.

FIG. 6 is a plan view of the connector 1 as seen from above. The shape of the groove 40 provided in the housing 6 can be easily understood. The connecting portion 164 of the terminal 160 is provided with a hole 176 as shown.
Is formed and an electric wire (not shown) is inserted and soldered. The connection 164 may also be inserted into a slot (not shown) in the board and soldered. Cover 100
The back edge 120 of the cover 100 when the
It abuts the upper surface 42 of 14 to prevent excessive rotation of the cover 100 and prevent deformation of the terminal 160. The trailing edge 120 and the upper surface 42
And cooperate to form an overstress prevention mechanism for the terminal 160.

FIG. 7 is a partial sectional view showing a state in which the slave unit 300 is connected to the connector 1. The cover 100 is pressed by the slave unit 300 placed on the base 10 of the upper member 4, and the terminal 16
The 0 contact portion 162 projects from the slot 106. Cover 10
0 is further pressed to the position shown in the figure, and the contact part of the terminal 160
162 is also pressed from the position indicated by arrow a to the position indicated by arrow b. The contact portion 162 is at the position shown in b, and is the connector 30 of the cordless handset 300.
An electrical connection is made by contacting the second terminal 304.

The preferred embodiment of the connector of the present invention has been described above in detail, but it is obvious that the present invention is not limited to this embodiment and various modifications and changes can be considered. For example, the ribs 110 and 110 'may be separated from the cover and may be attached by adhesive bonding, fitting, or screwing. The terminal guiding surface 108 may be a gently curved surface.

[0019]

In the electrical connector of the present invention, the cover rotatably provided on the housing for protecting the terminal held in the housing is made of an insulating material, and the vicinity of the slot of the cover for projecting the terminal is provided. Since the guide part having the surface for guiding the terminal is integrally provided, the following effects are obtained.

That is, the deflection of the terminals can be prevented, and the possibility of deformation of the terminals due to the deflection can be reduced. At the same time, the terminals smoothly protrude from the housing, and high electrical connection reliability is obtained.

When the guide part is formed integrally with the cover, it is easy to manufacture and the number of parts does not increase.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view of a charging stand using an electric connector of the present invention together with a slave.

2 shows a side view, partly in section, of the inventive electrical connector of FIG.

FIG. 3 shows a front view of the housing of the electrical connector of FIG.

FIG. 4 shows a rear view of the cover.

5 shows a front view of the electrical connector of FIG.

FIG. 6 shows a plan view of the electrical connector of FIG.

FIG. 7 is a partial cross-sectional view of the charging stand showing a state in which the electric connector of the present invention and the cordless handset are connected.

FIG. 8 shows a sectional view of a conventional electrical connector.

[Explanation of symbols]

 1 Electrical Connector 6 Housing 100 Cover 106 Slot 108, 108 'Face 110, 110' Guide 160 Terminal 162 Contact 174 Free end

Claims (1)

[Claims] 1. An insulating housing, an elastic terminal having a free end portion as a contact portion and held by the housing, and a slot rotatably supported by the housing and capable of exposing the contact portion. An electrical connector comprising a cover provided corresponding to a contact portion, wherein the cover is made of an insulating material, and a guide portion having a surface for guiding the terminal is provided close to the slot. connector.