JPS63292587A - Connector - Google Patents

Abstract

PURPOSE:To ensure the connection between a socket and a header and prevent the disconnection by providing an elastic member pressing one side of the header and the socket at least on the other side. CONSTITUTION:An elastic member 31k is provided on the socket 21 side and the lock lever 31b of a header 31. When the socket 21 fitted with an electric wire W is to be inserted into the header 31, the lock lever 31b is opened in the right and left directions, the socket 21 is coupled with the header 31 and proceeds. At this time, the coil spring 31k provided on a claw section 31j is coupled with a coupling lug 22d provided at the top of a strain relief 22, and the socket 21 is pressed to the header 31 side. The socket 21 is thereby connected to the header 31 side further reliably, and the disconnection of the socket 21 at the time of vibration is prevented.

Description

[Detailed description of the invention] 3.Details of the inventionYoshi F3h Technical field The present invention relates to a connector having a current carrying function.

Background Art For example, when a plurality of electronic components are installed and an electronic circuit is formed
A connector consisting of a pair of socket and header is used to connect one printed circuit board and an external circuit.

FIG. 10 is an exploded perspective view showing the structure of a conventionally used socket 1, FIG. 11 is a side view thereof, and FIG.
The figure is a plan view seen from the connection surface. Figure 10~1
In FIG. 2, mutually corresponding parts are designated by the same reference numerals.

Referring to Figure Iio, the socket 1 consists of three components: a strain relief 2, a protector 3, and a socket housing 4. The strain relief 2 is made of electrically insulating synthetic resin, and has a pair of opposing elastic members 2a at both ends in the longitudinal direction, and each elastic piece 2a has a fitting recess 2b inside its tip. .

The protector 3 is made of electrically insulating synthetic resin, and is provided with a pair of opposing locking pieces 3a at both ends in the longitudinal direction.

The locking piece 3a has a resilient force and is provided with a fitting hole 3b.

The main body 4a of the socket housing 4 is made of electrically insulating synthetic resin, and one end of a contact pin made of phosphor bronze or the like passes through a bottle insertion hole (not shown) provided in the main body 4a. The connecting terminal 4b is disposed on the upper part of the housing main body 4a to form a connecting terminal 4b, to which a connecting wire (not shown) such as a flat cable is connected. The other end of the contact pin is located in the contact hole 4d arranged in the connection surface 4c shown in FIG. Connected.

A polar guide 4 is provided on one side of the housing main body 4a.
f and a polarity keyway 4e are formed to prevent incorrect insertion of the socket 1. Furthermore, fitting protrusions 4f are provided at both ends of the housing main body 4a in the longitudinal direction.

4g is provided, and the fitting recess 2b of the strain relief 2
and the fitting hole 31) of the protector 3 are fitted into the socket 1, respectively, to form the socket 1 as shown in FIG.

FIG. 13 is a perspective view showing the external appearance of a header 11 that has been used conventionally and is paired with the above-mentioned socket 1, and FIG. 14 is a side view thereof. In FIGS. 13 and 14, mutually corresponding parts are designated by the same reference numerals.

Referring to FIG. 13, a pair of lock levers 111rM are attached to both longitudinal ends of the header main body 11a, and a lock lever 111J has a first lock lever 111J centered on the shaft hole 11c.
It is supported so that it can be angularly displaced in the left-right direction in Figure 3. A polar thrower is provided on one longitudinal side of the header main body 11a.
11d and polarity key 11. e is provided, and when the aforementioned socket 1 is inserted, the polarity guide 4f and the polarity keyway 4d fit into each other.

! Referring to FIG. ll'513 and FIG. 14, a contact bin 1111 made of phosphor bronze or the like is arranged in the bottomed recess 11g surrounded by the boss llf of the header body 1.1a. One end of the contact pin 1111 passes through the bottomed recess 11g and connects to the connection terminal 11i.
form.

Referring also to FIG. 11, when inserting the socket 1 into the header 11, the lock lever 111] must be in the first position.
It opens in the left and right direction in FIG. 3, and the socket 1 fits into the header 11 and enters. The connection surface 4c of the socket 1 is a bottomed recess 11g
When the lock lever 111 comes into contact with the upper surface of the main body 1, the contact piece (not shown) of the lock lever 11b is pressed, and the lock lever 111
1a, and press down the top of the strain relief 2, that is, the top of the socket 1. This connects the socket 1 and the lug 11, and prevents the socket 1 from detaching from the header 11. When removing the socket 1 from the header 11, when the lock lever 11b is pushed apart to the left and right, the abutment piece pushes up the connection surface 4c of the socket 1 from below, and the socket 1 is removed from the header 11.

However, the socket 1 and header 1 with the above structure
1, the only means to prevent the socket 1 from detaching from the header 11 is the lock lever 11b, which is not a problem when the connector is stationary, but when the connector is attached to a board etc. The situation is different when the board vibrates, especially when the applied vibration and frequency of the board or connector are in the resonant frequency band.
It is known that considerable acceleration acts on the header and the socket, causing the lock lever 11b to disengage and the socket 1 to separate from the header 1=4-1.

FIG. 15 is a graph showing the relationship between the resonance frequency Hz of a conventionally used connector in a vibration environment and the acceleration generated at that time. The graph shown by line 11 in Fig. 15 shows the center part of the connector when the connector is attached to a board (product name Sanhaya rcB-96) and fixed at four locations, and the applied frequency (sine wave) H2 is varied. This is a measurement of the resonance frequency generated by the connector and the acceleration acting on the connector. Line No. 1 shows that it resonates at a frequency of 200 Hz, and the acceleration at that time reaches 180 G. In addition, the line shown in parallel! 2
The graph shows the improvement results achieved by this example, which will be described later.

When vibration continues for a long time under such an environment, a phenomenon called sliding corrosion occurs on the connector pins, leading to poor contact and lowering reliability.

There is also no question of detachment of the socket as a result of vibration.

Therefore, even in an environment where continuous vibration is applied for a long time, a highly reliable connector is desired, which can reliably prevent serious accidents such as the socket 1 coming off, and which will not suffer from the above-mentioned problems such as sliding corrosion. was.

Purpose The present invention was made in view of the above-mentioned problems, and
The object is to provide a connector consisting of a socket and header in which the connection between the socket and header is reliably maintained and separation is prevented.

Embodiment FIG. 1 is an exploded perspective view showing the structure of a socket 21 according to an embodiment of the present invention, FIG. 2 is a side view of the socket 21, and FIG. 3 is a plan view of the socket 21 as seen from its connecting surface. be. In FIGS. 1 to 3, mutually corresponding parts are designated by the same reference numerals.

Referring to FIG. 1, the socket 21 consists of three components: a strain relief 22, a protector 23, and a socket housing 24.

The strain relief 22 is made of electrically insulating synthetic resin, and is provided with a pair of opposing elastic first fitting pieces 22a at both ends in the longitudinal direction, and the fitting pieces 22a are fitted inside the tip. recesses 22I] are respectively provided.

At both ends of the top 22c of the strain relief 22, a pair of fitting protrusions 22d into which a pair of elastic members (to be described later) are fitted are provided.

The protector 23 is made of electrically insulating synthetic resin, and is provided with a pair of opposing second fitting pieces 23a at both longitudinal ends thereof. Second fitting piece 23a1. It has a resilient force, and a fitting hole 23I] is bored therein.

The main body part 24a of the socket housing 24 is made of synthetic resin, and the first part is made of phosphor bronze or the like.
The - end of the contact pin, which is a contact member 11A, passes through the housing main body 24a and is disposed on the upper part of the main body 24a to form a connection terminal 24I), which is used for connecting a flat cable, etc. Electric wires (not shown) are connected.

The other end of the contact pin is located in the contact hole 24d arranged in the connection surface 24c shown in FIG. 3, and is connected to the contact pin of the other party, that is, the header, when the socket 21 is inserted into the header described later. Ru.

A polarity guide 24e and a polarity keyway 24f are formed on one side of the housing body 24a to prevent incorrect insertion of the socket 21.

Further, at both longitudinal ends of the housing main body part 24a,
A fitting protrusion 24g+241+ is provided, and the fitting recess 22b of the strain relief 22 and the fitting hole 231 of the protector 23 fit into each other to form the socket 21 as shown in FIG. 2.

FIG. 4 is a perspective view showing the structure of a header 31 according to an embodiment of the present invention, and FIG. 5 is a side view thereof.

Corresponding parts in FIGS. 4 and 5 are given the same reference numerals.

With reference to FIGS. 4 and 5 together, the header main body 31
A pair of lock levers 31b are attached to both longitudinal ends of a, and the lock levers 31b are supported so as to be angularly displaceable as shown by broken lines in FIG. 5 around the shaft hole 31c.

A bottomed recess 31e surrounded by a boss 31d of the main body 31a
A second contact pin 31f as a contact member made of phosphor bronze or the like is arranged on the contact pin 3.
The end of 1f passes through the bottomed recess 31e and connects to the connection terminal 3.
Forms 1g.

On one side of the header main body 31a in the length direction - is a polarity thrower 1311+ and a polarity key 31i to prevent incorrect insertion.
are provided, and the polarity guide 24e provided on the socket 21 side and the polarity keyway 24f are respectively fitted.

A coil bone 31k, which is an elastic member, is fixed in advance to the claw portion 31j of the lock lever 311 when the claw portion 31j is created.

FIG. 6 is a diagram showing the connection state of the electric wire W in the socket 21 of this embodiment. One end of a contact pin, which is a first contact member made of phosphor bronze or the like, is provided in the housing main body 24a of the socket 21 through the bottle through hole 24i.
The connecting terminal 24I is disposed on the upper part of the housing main body 24a to form a connecting terminal 24I], and the connecting terminal 24b has a U-shaped connecting end 24j into which a wire 9W is fitted. In order to connect the electric wire W to the socket 21, the electric wire W is covered with the connection end 2 as shown by the imaginary line W.
After fitting it into 4j and completing the above process for all the wires,
Connect the fitting hole 23b of the protector 23 to the housing main unit 24.
Fit into the fitting protrusions 2411 provided at both ends of. At this time, the bottomed recess 23c provided on the surface of the protector 23 facing the connection terminal 2411 is connected to the connection end 2411.
At the same time, connect the electric wire W to the housing body part 2.
4 side, the coating of the electric wire W is torn at the U-shaped connection end 24j, and the core wire S is pressed against the connection terminal 24.
b and a connection is made.

FIG. 7 is a perspective view showing the structure of a contact pin 241) used in the socket 21 of this embodiment.

In FIG. 7, parts corresponding to those in FIG. 6 described above are designated by the same reference numerals. [Contact bottle 241] is made of an elastic conductive material such as phosphor bronze, and has a U-shaped connecting end 24j formed at the tip and a first pin 24 that stands upright. The fjS2 bin 24J! consists of two pieces, the second bin 24 which is slightly curved and contacts the contact bin on the header side, and the first bin 24 and the fjS2 bin 24J! are welded or bent to be integrated at the lower end 2411. A connection terminal 241J is formed above the virtual 1fAx. The portion below the virtual line X is inserted into the contact hole 24d shown in FIG. 3, as described above.

FIG. 8 is a sectional view of the socket 21 of this embodiment, taken along the section line AB in FIG. 2. As shown by arrow e, contact bin 31r on the header side from the bottom of Figure F8.
is inserted into the contact hole 24d of the socket 21 and is in contact with the second contact pin 24. The first contact pin 24 stands upright, and its upper part passes through the through hole 24i of the housing main part 24, and a connecting terminal 241) is formed at the upper part of the main body part 24a. The electric wire W is pressed against the bottomed recess 23c of the protector 23, the coating is torn at the connection end 24j, and the core wire S is damaged by the first contact pin 24.
．． k and a connection is made between the electric wire W and the socket 21 side. After the connection, the electric wire W passes through the upper part of the protector 23 and is led out of the socket 21 (to the right in FIG. 8). The strain relief 22 presses the electric wire W to prevent the electric wire W from coming off, and the electric wire W is fixed to the socket 21.

FIG. 9 is an exploded perspective view for explaining the mounting state of the socket 21 and header 31 of this embodiment.

When inserting the socket 21 with the electric wire W attached into the header 31, the lock lever 31b opens in the left-right direction, and the socket 21 fits into the header 31 and enters. socket 21
When the connecting surface portion 24c of the header 31 comes into contact with the upper surface of the bottomed recess 31d, the contact piece 31+n of the lock lever 31b exposed from the small hole 31 is pressed downward as shown by the arrow a. Then, the lock lever 31b is angularly displaced inward of the header main body 31a as shown by the arrow, and the claw 31j presses down the top 22c of the strain relief 22. At this time, the coil spring 3 provided on the claw portion 31j
1k fits into the fitting protrusion 22d provided at the top of the strain relief 22 and presses the socket 21 toward the header 31, so that the socket 21 is more securely attached to the header 31.
This prevents the socket 21 from coming off during vibration.

The inventor measured the connector based on this example under the same vibration environment as described above.

As a result, as shown by line 2 in the graph of FIG. 15, a favorable result was obtained in which no resonance point was generated even when the frequency was changed, and therefore the peak of the applied acceleration was eliminated.

In the above embodiment, a coil spring is provided on the lock lever side to press the socket side, but a planar elastic body made of rubber or the like may be used instead of the coil spring. Further, in the above embodiment, the coil spring is fitted into the fitting protrusion on the socket side, but a recess may be provided in place of the protrusion on the socket side, and the coil spring may be fitted into the recess. .

Effects As described above, according to the present invention, elastic members are provided on the socket side and the lock lever of the header, and when the socket is inserted into the header and the socket is prevented from coming off by the a-lock lever, the elastic members are strong. Since the socket is pressed against the other end, the socket is more securely pressed and connected to the header, resulting in a highly reliable connector with improved contact stability.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing the structure of a socket according to an embodiment of the present invention, FIG. 2 is a side view of the socket, FIG. FIG. 5 is a perspective view showing the structure of the header of this embodiment, FIG. 5 is a side view thereof, FIG. 6 is a diagram showing the connection state of the electric wires of the socket of this embodiment, and FIG. 7 is a diagram showing the structure of the contact pin of this embodiment. The perspective view shown in FIG. 8 is taken along the cutting plane line A-B in FIG. 2 regarding the socket of this embodiment.
FIG. 9 is an exploded perspective view for explaining the mounting state of the socket and header of this embodiment. FIG. 10 is an exploded perspective view showing the structure of a conventionally used socket. The figure is a side view, Figure 12 is a plan view from the connection surface, Figure 13 is a perspective view showing the external appearance of the header paired with the socket, Figure 14 is a side view, and Figure 15 is a connector. It is a graph showing the relationship between the resonance frequency Hz and the acceleration G generated at that time. 1.21...Socket, 11.31...Header, 1
1b, 31. b...Lock lever 122d...Fitting protrusion, 31k...Coil spring agent Patent attorney Function Keiichi Fig. 1 Fig. 2 Fig. 3 Fig. 4c Fig. 4 @ Fig. 6 Fig. 5 Fig. 7 Fig. 3ε Figure 8 Figure 11 Figure 13 Figure 14 Figure 15 Screw 1 Shin H2)

Claims (1)

[Claims] A socket provided with a first contact member and a header provided with a second contact member are fitted,
A connector for electrically connecting a contact member and a second contact member by contacting each other, characterized in that an elastic member is provided on at least one side of the header and the socket to press the other side.