JPH1174050A - Electric connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric connector capable of avoiding improper control of contact pressure and breakage of the connector caused by a displacement of a female terminal mounting portion. SOLUTION: The electric connector comprises: a male connector 1 wherein a male terminal 18 having a spring portion 21 and a contact point 22 extending from the spring portion 21 is inserted in a terminal inserting slot, with the contact point 22 inserted into a fitting groove 7; and a female connector 2 coupled to the male connector 1 by fitting a female terminal fitting portion 31 having a female terminal 40 installed therein into the fitting groove 7, thereby forcing the female terminal 40 to bring into contact with the contact point 22 of the male terminal 18 against the elastic force generated by the spring portion 21. When the male and female connectors 1, 2 are coupled together the outward displacement of the female terminal mounting portion 31 caused by the reaction force from the spring portion 21 of the male terminal 18 is prevented by the wall surface of the fitting groove 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrical connector having a female connector and a male connector mounted on the surface of a printed circuit board.

[0002]

2. Description of the Related Art FIG.
As shown in FIG. 2, the male connector 60 and the female connector 70 are provided. The male-side connector 60 has a male-side housing 61. The male-side housing 61 has a fitting protrusion 62 formed on both sides 62a of the fitting protrusion 62. A large number of terminal insertion grooves 63 are formed at regular pitch intervals along the direction. These terminal insertion grooves 63 are cut from the side surface 62 a toward the center of the fitting protrusion 62.

The male terminal 6 is inserted into the terminal insertion groove 63.
4 is mounted, and the terminal body 65 of the male terminal 64 is mounted.
Is bent substantially at a right angle, the terminal body 65 extends along the end face 63 a of the terminal insertion groove 63, and an arc-shaped contact portion 67 is provided on the front side of a spring 66 connected to the terminal body 65.
Are formed, and the contact portion 67 protrudes outward from the terminal insertion groove portion 63.

The female connector 70 has a female housing 71 having a fitting recess 72 formed therein. The female terminal 71 is a side wall of the fitting recess 72. On the inner surface of the mounting portion 73, a large number of female terminals 74 are provided at regular intervals along the longitudinal direction of the housing.
Is arranged.

The female and male connectors 70 and 60 are connected by inserting and fitting the fitting projection 62 of the male connector 60 into the fitting recess 72 of the female connector 70. This is performed by bringing the contact portion 74A into contact with the contact portion 67 of the male terminal 64.

[0006]

However, when the male connector 60 is connected to the female connector 70, the contact portion 74A of the female terminal 74 provided on the inner surface of the female terminal mounting portion 73 is connected to the male terminal 64. The contact portion 67 contacts the contact portion 67, and the spring portion 66 of the male terminal 64 is bent to elastically displace the contact portion 67 toward the center of the male connector 60. The spring reaction force of the spring portion 66 of the male terminal 64 is applied to both contact portions 67 and 74.
A, a pair of female terminal mounting portions 7 of the female connector 70
Push 3 outward.

For this reason, when the contact force is large, there is a problem that the contact force is poorly controlled due to the spread of the female terminal mounting portion 73 and the electric connector is damaged.

[0008] In order to ensure the contact reliability while demanding high-density mounting, it is preferable to increase the length (spring length) of the spring portion 66 of the male terminal 64. The terminal insertion grooves 63 are formed on both side surfaces 62 a of the fitting projection 62.
Is merely cut from the side surface portion 62a toward the center of the fitting protrusion 62, so that the length (spring) of the spring portion 66 of the male terminal 64 mounted in the terminal insertion groove portion 63 There is a problem that it is difficult to take long).

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to prevent poor control of contact force due to displacement of a female terminal mounting portion and breakage of an electrical connector. It is an object of the present invention to provide an electrical connector which can be prevented.

[0010]

In order to achieve the above object, an electric connector according to the present invention has a male terminal having a spring portion and a contact portion connected to the spring portion in a terminal insertion groove. The male connector with the contact portion protruding into the fitting groove portion and the female terminal mounting portion with the female terminal mounted thereon are fitted into the fitting groove portion of the male connector, and A female connector coupled to the male connector by bringing a side terminal into contact with the contact portion of the male terminal against the spring force of the spring portion;
At the time of coupling of the male connector, the outward displacement of the female terminal mounting portion due to the spring reaction force of the spring portion of the male terminal,
It is characterized in that it is received on the wall surface of the fitting groove.

With this configuration, when the male connector is coupled to the female connector, the female terminal mounting portion is inserted and fitted into the fitting groove, and the female terminal contacts the contact portion of the male terminal. The contact portion is elastically displaced toward the center of the male connector by bending the spring portion of the male terminal. Then, the spring reaction force of the spring portion of the male terminal pushes and spreads the female terminal mounting portion outward so as to displace (bulge).

However, since the outward displacement of the female terminal mounting portion is received by the wall surface of the fitting groove, the female terminal mounting portion is not displaced outward. For this reason, it is possible to prevent poor control of contact force due to displacement of the female terminal mounting portion and damage to the electrical connector.

According to another aspect of the present invention, there is provided an electrical connector according to the first aspect of the present invention, wherein the male connector has a male housing which extends along a longitudinal direction of the housing. A pair of side walls and a fitting protrusion located between these side walls are provided, and the fitting groove is formed between the side wall and the side surface of the fitting protrusion facing the side wall. It consisted of spaces between.

According to this configuration, since the outward displacement of the female terminal mounting portion is received by the side wall portion, the same operation and effect as the above-described first embodiment can be obtained.

According to a third aspect of the present invention, there is provided an electrical connector according to the third aspect of the present invention, wherein the terminal insertion groove is provided in an inner surface portion of the side wall portion. A plurality of one terminal insertion grooves are formed at a constant pitch interval along the direction, and the other terminal insertion groove facing the one terminal insertion groove is formed on the side surface of the fitting projection. did.

According to this configuration, not only the same operation and effect as the above-described first embodiment can be obtained, but also the terminal insertion groove is formed by one and the other terminal insertion groove portions opposed to each other with the fitting groove portion interposed therebetween. With this configuration, it is possible to increase the length (spring length) of the spring portion of the male terminal inserted into the terminal insertion groove, and to absorb the lateral vibration of the female connector with respect to the male connector. It is possible to provide an electrical connector that is easy and has high shock resistance.

According to a fourth aspect of the present invention, there is provided an electrical connector according to the third aspect, wherein the terminal insertion groove faces the terminal insertion groove with the fitting groove portion interposed therebetween. One and the other terminal insertion groove portions, the male terminal is formed by pressing at least one end of the spring portion into an inverted U-shape to form a press-fit portion, and a circle is formed on the other end side of the spring portion. An arc-shaped contact portion is formed, the male side terminal is inserted into the terminal insertion groove, the press-fit portion is brought into contact with an end face of the one terminal insertion groove portion, and the spring portion is connected to the one of the one terminal insertion groove portion. The contact portion was inserted from the terminal insertion groove into the other terminal insertion groove, and the contact portion protruded from the other terminal insertion groove into the fitting groove.

With this configuration, not only can the same operation and effect as the above-described first embodiment be obtained, but also the terminal insertion groove can be formed by one and the other terminal insertion groove portions opposed to each other across the fitting groove portion. With this configuration, the spring portion can be inserted from one terminal insertion groove portion to the other terminal insertion groove portion, so that the length of the spring portion (spring length) can be increased, and the male terminal can be used. At least, one end of the spring portion is bent into an inverted U-shape to form a press-fit portion, and the other end of the spring portion is formed with an arc-shaped contact portion. Inserting the spring portion from the one terminal insertion groove into the other terminal insertion groove by inserting the press-fit portion into an end face of the one terminal insertion groove; Part from the other terminal insertion groove into the fitting groove. And, the lateral deflection is liable to absorption of the male connector of the female connector, a strong electrical connector impact can be provided.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of an electrical connector according to the present invention, in which a female connector and a male connector are separated.
FIG. 2 is a cross-sectional view of the electric connector according to the present invention in a connected state.

The electrical connector according to the present invention comprises a male connector 1 and a female connector 2. The male connector 1 includes a male housing 3, and the male housing 3 has a pair of side walls 4 along the housing longitudinal direction A as shown in FIGS. It has a flat rectangular fitting projection 5 located therebetween and a pair of end walls 6 along the short side direction B of the housing.

A fitting groove 7 is formed between the inner surface 4a of the side wall 4 and the side surface 5a of the fitting protrusion 5.
A large number of one terminal insertion grooves 8 are formed on the inner surface 4a of the side wall 4 at a constant pitch along the longitudinal direction A of the housing.
Are drawn from the front surface 3a side of the male housing 3 to the back surface 3b side.

One partition 9 formed by one adjacent terminal insertion groove 8 has a surface 3 of the male housing 3.
From the a side to the back surface 3b side, a first slope portion 9a, a first vertical portion 9b continuous with the first slope portion 9a, a second slope portion 9c continuous with the first vertical portion 9b, A second vertical portion 9d connected to the second slope portion 9c is formed. Further, a press-fit groove 23 is formed in one of the partition portions 9 so as to approach the end face 8a of the one terminal insertion groove 8.

The side surface 5a of the fitting projection 5 has another terminal insertion groove 10 facing one terminal insertion groove 8.
However, a large number of them are formed at regular pitch intervals along the longitudinal direction A of the housing. These other terminal insertion grooves 10 are cut from the side surface 5 a toward the center of the fitting protrusion 5, and the other terminal insertion grooves 10 are open to the back surface 3 b of the female housing 3. It is. The other partition 11 formed by the other adjacent terminal insertion groove 10
Is connected to one partition part 9 at the crossover part 12, and one terminal insertion groove part 8 and the other terminal insertion groove part 10 form a terminal insertion groove M. In this case, the edge of one partition 9 (the first slope 9a, the first vertical 9b, the second slope 9c, and the second vertical 9d) and the end of the crossover 12 The fitting groove 7 is formed by the edge 12 a and the edge 11 a of the other partition 11.

A pair of end surfaces 5b of the fitting projection 5 along the housing short direction B and an end wall 6 of the male housing 3 are provided.
A space 13 is formed between the space 13 and the end of the fitting groove 7. The side wall 4-1 of the space 13 is
A guide projection 15 is formed on the side wall 4-1 on the space 13 side. An engagement member insertion groove 16 that is open to the space 13 is formed in the inner surface 6 a of the end wall 6 of the male housing 3. A press-fit groove 17 is formed on the back surface 3b of the male housing 3 with the engagement member insertion groove 16 interposed therebetween.

The male terminal 18 is mounted in the terminal insertion groove M. As shown in FIGS. 2 and 3, the male terminal 18 includes a surface mounting portion 19, a press-fit portion 20, and a spring portion 21.
And a contact portion 22. That is, at least one end of the spring portion 21 is inverted U
The press-fit portion 20 is formed by bending into a U-shape, and an arc-shaped contact portion 22 is formed on the other end of the spring portion 21. This press-fit part 2
It is formed by being bent substantially at right angles to 0.

The male terminal 18 thus configured is inserted into the terminal insertion groove M, and the press-fit portion 20 is
The press-fit portion 20 is in contact with the end face 8a of the one terminal insertion groove 8, and the surface mounting portion 19 is exposed on the back surface 3b of the female housing 3. The spring portion 21 of the male terminal 18 is inserted from one terminal insertion groove 8 into the other terminal insertion groove 10, and the contact portion 22 of the male terminal 18 is inserted from the other terminal insertion groove 10 into the fitting groove. 7 has entered.

As shown in FIGS. 1, 4 and 5, the free end side of the engaging member 24 is inserted into the engaging member insertion groove 16, and the base of the engaging member 24 is press-fitted. Part 2
5 is press-fitted into the press-fitting groove portion 17, and the leg portion of the engaging member 24 that is continuous with the press-fitting portion 25 protrudes toward the rear surface 3 b of the male housing 3.

The female connector 2 is provided with a female housing 30.
As shown in FIGS. 8 to 11, the female housing 30 has a female terminal mounting portion 31 which is a pair of fitting side walls along the housing longitudinal direction c, and extends along the housing short direction d. It has a pair of fitting end wall portions 32, and a portion surrounded by the female terminal mounting portion 31 and the fitting end wall portion 32 is formed as a fitting concave portion 33.

Then, the inner surface portion 31 of the female terminal mounting portion 31
a, a large number of terminal insertion grooves 34 are formed at regular intervals along the longitudinal direction c of the housing, and these terminal insertion grooves 34 are formed on the rear surface 30 b of the female housing 30.
It is connected to the press-in hole 35 which escapes to the side.

An engaging member insertion groove 36 is formed in the outer surface 32a of the fitting end wall 32. A press-fit groove 37 is formed on the back surface 30b of the female housing 30 with the engagement member insertion groove 36 interposed therebetween. Guide grooves 38 are formed on both sides of the fitting end wall 32,
A convex portion 39 is formed at an intermediate portion of the guide groove portion 38.

The female terminal 4 is inserted into the terminal insertion groove 34.
0 is attached. In this case, the press-fit portion 4 of the female terminal 40
1 is press-fitted into the press-fitting hole 35, and the surface mounting portion 40 </ b> A of the female terminal 40 is exposed on the back surface 30 b of the female housing 30.

As shown in FIG. 1, the free end side of the engaging member 42 is inserted into the engaging member insertion groove 36, and a press-fit portion (not shown) of the base of the engaging member 42 is provided. Are press-fitted into the press-fitting groove portion 37, and the leg portions 44 connected to the press-fitting portions of the engaging members 42 project toward the rear surface 30 b of the male housing 30.

Next, a description will be given of the connection of the electric connector configured as described above and the release of the connection.

The male connector 1 has the surface mounting portion 19 of the male terminal 18 soldered to one printed circuit board (not shown) and mounted on the printed circuit board. The surface mounting portion 40A of the female terminal 40 is soldered to the other printed board (not shown) and mounted on this printed board.

The female and male connectors 2 and 1 are connected by connecting the pair of female terminal mounting portions 31 of the female housing 30 of the female connector 2 to the pair of fitting grooves 7 of the male connector 1.
And a pair of fitting end wall portions 32 of the female connector 2 are inserted and fitted into the pair of space portions 13 of the male connector 1, and are fitted into the fitting recesses 33 of the female connector 2. The fitting projection 5 of the female connector 1 is fitted to the contact portion 40 of the female terminal 40.
B is brought into contact with the contact portion 22 of the male terminal 18.

When the female and male connectors 2 and 1 are connected, the guide projection 15 of the male connector 1 is inserted into the guide groove 38 of the female connector 2 so that the guide projection 15 is located at the middle of the guide groove 38. Is inserted further into the guide groove portion 38 beyond the convex portion 39 provided on the male connector 1, and the engaging member 24 of the male connector 1 is engaged with the engaging member 42 of the female connector 2.

When the male connector 1 is connected to the female connector 2, the female terminal mounting portion 31 is inserted and fitted into the fitting groove 7, and the contact portion 40 A of the female terminal 40 is connected to the male terminal 18.
, And the spring portion 21 of the male terminal 18 is bent to elastically displace the contact portion 22 toward the center of the male connector 1. Then, the spring reaction force of the spring portion 21 of the male terminal 18 tends to push and spread the pair of female terminal mounting portions 31 of the female connector 2 outwardly through the two contact portions 22 and 40A.

However, the outer surface of the female terminal mounting portion 31 is in contact with the second vertical portion (wall surface) 9d, which is the edge of one partition 9 of the male connector 1, and these portions are in contact with each other. Since the pair of female terminal mounting portions 31 of the female connector 2 are received by the one partition portion 9, they do not bulge outward. For this reason, it is possible to prevent poor control of contact force due to swelling of the female terminal mounting portion 31 due to expansion by pushing and breakage of the electrical connector.

The terminal insertion groove M of the male connector 1 is
One and the other terminal insertion grooves 8 and 10 opposing each other with the fitting groove 7 interposed therebetween. The male terminal 18 press-fits the press-fitting portion 20 into the press-fitting groove 23 and inserts the spring portion 21 into one end. The length (spring length) of the spring portion 21 is increased so that the male terminal 18 is inserted into at least one end portion of the spring portion 21 so as to be inserted from the terminal insertion groove portion 8 into the other terminal insertion groove portion 10. Is bent into an inverted U-shape to form a press-fit portion 20 and an arc-shaped contact portion 22 is formed at the other end of the spring portion 21, so that the female connector 2 is lateral to the male connector 1. It is possible to provide an electrical connector that easily absorbs vibration and has high shock resistance.

[0040]

As described above, according to the electrical connector of the present invention, when the male connector is connected to the female connector, the female terminal mounting portion is inserted into the fitting groove. Then, the female terminal comes into contact with the contact portion of the male terminal, the spring portion of the male terminal is bent, and the contact portion is elastically displaced toward the center of the male connector. Then, the spring reaction force of the spring portion of the male terminal pushes and spreads the female terminal mounting portion outward so as to displace (bulge).

However, since the outward displacement of the female terminal mounting portion is received by the wall surface of the fitting groove, the female terminal mounting portion is not displaced outward. For this reason, it is possible to prevent poor control of contact force due to displacement of the female terminal mounting portion and damage to the electrical connector.

According to the electrical connector of the second aspect of the present invention, since the outward displacement of the female terminal mounting portion is received by the side wall portion, the operation and effect of the first aspect of the present invention are the same. Various operational effects can be achieved.

According to the electrical connector of the third aspect of the present invention, not only can the same effect as the above-described first aspect of the invention be achieved, but also the terminal insertion groove can be formed with the fitting groove interposed therebetween. Since it is composed of the one and the other terminal insertion grooves facing each other, the length of the spring portion (spring length) of the male terminal inserted into this terminal insertion groove can be increased, and the female side can be extended. It is possible to provide an electrical connector that is easy to absorb lateral vibration of the connector with respect to the male connector and that is resistant to impact.

According to the electrical connector of the fourth aspect of the present invention, not only can the same effect as the above-described first aspect of the invention be achieved, but also the terminal insertion groove can be formed with the fitting groove interposed therebetween. Since it is constituted by the one and the other terminal insertion grooves facing each other, the spring can be inserted from one terminal insertion groove into the other terminal insertion groove, and the length of the spring part (spring length) ), A male terminal is formed by pressing at least one end of the spring portion into an inverted U-shape to form a press-fit portion, and an arc-shaped contact portion is formed at the other end of the spring portion. The male terminal is inserted into the terminal insertion groove, the press-fit portion is brought into contact with the end face of the one terminal insertion groove, and the spring portion is moved from the one terminal insertion groove to the other. And the contact portion is inserted into the other terminal insertion groove. Be to plunge into et the fitting groove portion, the horizontal deflection is liable to absorption of the male connector of the female connector, a strong electrical connector impact can be provided.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state where a female connector and a male connector are separated in an electrical connector according to the present invention.

FIG. 2 is a cross-sectional view of the electrical connector according to the present invention in a coupled state.

FIG. 3 is a sectional view of a male connector in the electrical connector.

FIG. 4 is a partially-omitted perspective view of the male connector in the electrical connector as viewed from the front side.

FIG. 5 is a partially omitted perspective view of the male connector in the electrical connector as viewed from the back surface side.

FIG. 6 is a partially omitted perspective view of the male connector as viewed from the front side of the male housing.

FIG. 7 is a partially omitted perspective view of the male connector of the male connector as viewed from the rear surface side of the male housing.

FIG. 8 is a plan view of a female housing of the female connector.

FIG. 9 is a side view of the female housing.

FIG. 10 is a rear view of the female housing.

FIG. 11 is an end view of the female housing.

FIG. 12 is a cross-sectional view of a connection state of a conventional electrical connector.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Male connector 2 Female connector 7 Fitting groove part 18 Male terminal 21 Spring part 22 Contact part 31 Female terminal mounting part 40 Female terminal

Claims (4)

[Claims] A male connector having a spring part and a contact part connected to the spring part mounted in the terminal insertion groove, and the contact part protruding into the fitting groove part; and a female terminal. The female terminal mounting portion with the female terminal is fitted in the fitting groove of the male connector, and the female terminal is brought into contact with the contact portion of the male terminal against the spring force of the spring portion. An electrical connector comprising: a female connector coupled to the male connector; wherein the female and male connectors are coupled with each other by the spring reaction force of the spring portion of the male terminal. An electrical connector wherein an outward displacement is received by a wall surface of the fitting groove. 2. A male housing of the male connector,
A pair of side walls along the longitudinal direction of the housing and a fitting protrusion located between these side walls are provided, and the fitting groove is formed by the fitting protrusion facing the side wall and the side wall. The electrical connector according to claim 1, wherein the electrical connector is configured by a space between the side surface portion and the side surface portion. 3. A plurality of one terminal insertion grooves are formed on the inner surface of the side wall at a constant pitch along the longitudinal direction of the housing, and the side surfaces of the fitting protrusions are formed. 3. The electrical connector according to claim 2, wherein the other terminal insertion groove facing the one terminal insertion groove is formed. 4. The terminal insertion groove includes one and the other terminal insertion grooves opposed to each other with the fitting groove interposed therebetween, and the male terminal has at least one end of the spring portion inverted U-shaped. Forming a press-fit portion by bending into a shape, forming an arc-shaped contact portion on the other end side of the spring portion, and inserting the male-side terminal into the terminal insertion groove to form the press-fit portion. The spring portion is inserted from the one terminal insertion groove into the other terminal insertion groove, and the contact portion is inserted from the other terminal insertion groove into the fitting groove. 4. The electrical connector according to claim 3, wherein the electrical connector protrudes into the inside.