JP3047965U - Male connector for printed circuit boards - Google Patents

Abstract

(57) [Summary] (Modifications) [PROBLEMS] To smoothly engage with a female connector and reduce resistance when a male electrical contact is mounted on a housing body. SOLUTION: An upper housing 12 comprising a laterally rectangular side wall frame 15, a bottom plate 17 connected at the lower ends of both side walls hanging down from the side wall frame on the shorter side thereof, and a connecting member 28 below the upper plate. The housing main body 11 is composed of a lower housing 13 integrally connected to the upper body, an upper support groove 18, an intermediate support groove 21, and a lower support groove 23 formed in the long side wall, the bottom plate and the lower housing of the side wall frame, respectively. And a male electrical contact 25 inserted into the housing body with the base upper end 26A of the contact portion and the base lower end and the base of the terminal portion 27 inserted thereinto, each of which faces the upper support groove into which the base upper end is inserted. On one side, there is provided a projection 20 which is in contact with the side surface of the upper end of the base to hold it vertically.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a male connector for a printed circuit board, which is fitted to and electrically connected to a female connector.

[0002]

[Prior art]

 As a male connector of this kind, the applicant has previously applied for a design as shown in the drawings as a design (registered No. 964938), but the present invention is a partially improved design. Therefore, of the drawings, the conventional structure will be described first, and then the present invention will be described.

In FIG. 1, reference numeral 11 denotes a rectangular parallelepiped housing body, which is composed of an upper housing 12 and a lower housing 13. The upper and lower housings 12 and 13 are, as shown in FIG. The upper and lower ends of the connecting members 14 are fixedly connected to each other.

The upper housing 12 has a laterally rectangular side wall frame 15 composed of front and rear long side walls 15A, 15A and left and right short side walls 15B, 15B, and hangs down from the side wall frame 15B. And a side wall 15C. A fitting recess 16 is formed inside the side wall frame 15 to be fitted with a female connector 30 to be described later. It is closed by bottom plates 17 of a predetermined thickness connected to the lower end portions of both side walls 15C.

[0005] Reference numeral 18 denotes an upper support groove formed at a predetermined interval in the front and rear side wall frames 15A, extending from a substantially central portion to a lower end of the side wall frame 15A, and an opening opening to the outside is chamfered. 19 are given. Reference numeral 21 denotes an intermediate support groove formed on the bottom plate 17 and opening on the upper surface thereof, provided at a position on the same axis as the upper support groove 18. A groove 22 is formed.

Reference numeral 23 denotes a lower support groove formed in the lower housing 13, which is formed on the same axis as the upper support groove 18, and a lower end of the lower support groove 23 has a vertically extending terminal groove. 24 are provided in a communicating state.

[0007] Reference numeral 25 denotes a male electrical contact housed in the housing body 11, which is a rectangular contact portion 26 in the upper half, a strip-shaped terminal portion 27 in the lower half, and the contact portion. 26, a connecting portion 28 for connecting the base upper end 26A of the terminal portion 27 to the base 27A of the terminal portion 27 on the outside, and an intermediate fixing portion 29 extending horizontally from the base lower end 26B of the contact portion 26 at right angles. I have.

Reference numeral 30 denotes a female connector, a rectangular parallelepiped housing 31 fitted into the fitting recess 16 of the male connector, and a tuning fork-shaped contact portion at a position corresponding to the male electrical contact 25 of the male connector. And a terminal portion 34 of the female electrical contact 32 is bent orthogonally outward from an upper end of the housing 31 so as to be printed on a printed circuit board. Soldered to the circuit.

Next, a description will be given of a case where the male electrical contact 25 is mounted on the housing main body 11. The contact portion 26 of the male electrical contact 25 is disposed facing the housing main body 11, The contact portion 26 is pushed into the housing body 11 from the front and rear side wall frames 15A, 15A, the terminal base 27A is pushed into the lower support groove 23, and the terminal portion 27 is pushed into the terminal groove 24.

Thus, the upper end 26A of the base is the upper support groove 18, the lower end 26B of the base is the intermediate support groove 21, the intermediate fixing part 29 is the lateral support groove 22, and the base 27A of the terminal 27 is the lower support groove 23. Each is fixed. The terminal portion 27 extending downward from the terminal groove 24 projects from the lower surface of the lower housing 13, and the connecting portion 28 is mounted in a state exposed to the outside of the housing 11.

Then, when the female connector 30 is fitted into the fitting recess 16 of the housing body 11, the tuning fork-shaped contact portion 33 of the female electrical contact 32 of the female connector 30 is connected to the male electrical contact. The contact portion 26 of the child 25 is contacted with the contact portion 26 sandwiched from the left and right, and the male connector and the female connector are male-electrically connected.

[0012]

[Problems to be solved by the invention]

 As shown in FIG. 5, the contact portion 26 of the male electrical contact 25 has a relatively large area with a large length in the upward and downward directions and in the left-right direction. The upper part is merely fixed to the side wall frame 15A of the housing main body 11 at the base upper end 26A which is the connection part with the connection part 28 outside the upper end part.

That is, the upper portion of the contact portion 26 is formed by inserting the upper end 26A of the base into the upper support groove 18 formed in the side wall frame 15A. Is fixed only by holding down from the left and right. Therefore, most of the contact portion 26, which has a relatively large area extending forward from the base upper end 26 </ b> A, is not fixed, and has a free end that can freely move in the left-right direction within the housing body 11. Has become.

Therefore, even if the lower end 26B of the base is fixed to the housing body 11 by the intermediate support groove 21 at the lower part of the contact part 26, the fixed part is located at the rear end side of the contact part 26, so that positioning is not possible. Reliable and easy to shift in the left-right direction. In addition, since the width of the upper support groove 18 is set to be slightly larger than the thickness of the base upper end 26A of the male electrical contact 24 to provide play, the contact portion is provided as shown in the enlarged view of FIG. 26 may be tilted to one of the right and left and located off the same vertical line.

As a result, when the female connector 30 is fitted in the fitting recess 16 of the male connector, the upright contact portion 26 of the male electrical contact 25 and the tuning fork-shaped contact portion of the female connector 30 are formed. If the female connector 30 is forcibly pushed in this state, the contact portion 26 of the male electrical contact 25 in the free state may be bent or damaged. There were problems in durability and electrical connection.

[0016]

[Means for Solving the Problems]

 The present invention has been made to solve the above-mentioned problems, and the male electrical contact is firmly fixed to the housing body at the upper end portion of the base, so that the male electrical contact can be mated with the female connector. The purpose is to provide a male electrical contact that can be easily mounted with low resistance when mounting the male electrical contact to the housing body. The gist of the invention is that an upper housing composed of a laterally rectangular side wall frame, a bottom plate connected at the lower ends of both side walls hanging down from the opposite side wall frame on the short side, and a connecting member below the upper housing A housing main body composed of a lower housing integrally connected through a hole, a side wall frame on a long side of the side wall frame, an upper support groove, an intermediate support groove, and a lower support groove formed respectively in the bottom plate and the lower housing. Department A male electrical contact mounted on the housing by inserting a base upper end, a base lower end, and a base of a terminal portion, respectively, and opposing upper support grooves into which the base upper end of the male electrical contact is inserted. A male connector for a printed circuit board, characterized in that one of the surfaces is provided with a projection which comes into contact with the side surface of the upper end of the base and holds the projection vertically.

[0017]

[Embodiment of the invention]

 Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings. However, since most of the configuration is the same as that of the conventional male connector, the same portions will be improved portions with the same reference numerals in the following. Only the upper support groove 18 will be described.

That is, in the figure, reference numeral 18 denotes a rectangular upper support groove, which extends from a substantially central portion to a lower end of the front and rear side wall frames 15A, and opens to the outside of the both side wall frames 15A. The opening of the support groove 18 is chamfered 19. At least one of the opposing surfaces of the upper support groove 18 is provided with a plurality of protrusions 20 having a sawtooth shape or the like, which are spaced apart in the vertical direction toward the other opposing surface.

Therefore, when the male electrical contact 25 is mounted on the housing body 11 by the same means as in the prior art, one side surface of the base upper end 26 A of the contact portion 26 is placed in the upper support groove 18 in the upper support groove 18. The contact portion 26 is firmly held on a vertical line by being pressed against the other side surface by the protrusion 20.

Therefore, the contact portion 26 of the male electrical contact 25 is connected to the contact portion 33 of the female connector 30 fitted in the fitting recess 16 in the housing body 11. 25 are smoothly and smoothly fitted and electrically connected.

In addition, even when the male electrical contact 25 is mounted on the housing main body 11, one side surface of the base upper end 26A of the contact portion 26 and the protruding portion 20 are in line contact with each other. When the upper end 26A of the base can be inserted into the upper support groove 18, the pressing force of the projection 20 against one side surface of the upper end 26A of the base is increased even after the insertion, so that the fixing becomes stronger, 26 can always be held in a vertical position at a predetermined position.

[0022]

[Effect of the invention]

 As described above, the male connector for a printed circuit board according to the present invention includes a laterally rectangular side wall frame and a bottom plate connected at the lower end portions of both side walls hanging down from the opposing side wall frame on the short side. A housing body including an upper housing, a lower housing integrally connected below the upper housing via a connecting member, an upper frame formed on the long side wall of the side wall frame, the bottom plate, and the lower housing, respectively; A male electric contact mounted on the housing body by inserting a base upper end and a base lower end of the contact portion into the groove, the intermediate support groove, and the lower support groove, respectively, and mounting the male electric contact on the housing body. Since the protrusion is provided on one of the opposing surfaces of the upper support groove for inserting the upper end of the base of the contact into contact with the side surface of the upper end of the base to hold the upper end vertically. smell , It can be firmly attached without deviating from the predetermined position the contact portions of the male electrical contacts are inclined in the lateral direction. Therefore, the electrical contacts of the female connector fitted to the housing body are always smoothly and smoothly connected to the electrical contacts so that the male and female electrical contacts can be prevented from being damaged. Has an effect that it can be easily attached to the housing body.

[Brief description of the drawings]

FIG. 1 is a perspective view of a male connector and a female connector according to the present invention.

FIG. 2 is a front view of the male connector.

FIG. 3 is a sectional view taken along line II-II of FIG. 2;

FIG. 4 is a perspective view of a main part of the male connector.

FIG. 5 is a perspective view of a male electrical contact mounted on the male connector.

FIG. 6 is a front view of a conventional male connector.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Housing main body 12 Upper housing 13 Lower housing 14 Connecting member 15 Side wall frame 15A Front and rear side wall frame 15B Left and right side wall frame 15C Side wall 16 Fitting recess 17 Bottom plate 18 Upper support groove 19 Chamfer 20 Real rising part 21 Intermediate support groove 22 Side Support groove 23 Lower support groove 24 Terminal groove 25 Male electrical contact 26 Contact part 26A Base upper end 26B Base lower end 27 Terminal part 27A Base 28 Connecting member 29 Intermediate fixing part

Claims (1)

[Utility model registration claims] 1. An upper housing comprising a laterally rectangular side wall frame, a bottom plate connected at the lower ends of both side walls hanging down from opposing side wall frames on a short side thereof, and a connecting member below the upper housing. A housing main body composed of a lower housing integrally connected via a rim, a side wall frame on a long side of the side wall frame, an upper support groove, an intermediate support groove, and a lower support groove formed respectively in the bottom plate and the lower housing; And a male electric contact mounted on the housing body by inserting the base upper end, the base lower end, and the base of the terminal portion respectively, and opposing the upper support groove into which the base upper end of the male electric contact is inserted. A male connector for a printed circuit board, characterized in that one of the surfaces is provided with a protruding portion which is in contact with the side surface of the upper end of the base to hold it vertically.