JP2000260508A - Floating type substrate mounting connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a floating type substrate mounting connector capable of securing effective floating characteristics and allowing easy fabricating assembly. SOLUTION: This floating type substrate mounting connector 10 is mounted on a circuit board 100 and comprises a first housing 20 fixed to the circuit board 100 and a second housing 30 located floatingly, with respect to the first housing 20 and including an engaging portion 31 with a counterpart connector. Floating characteristics of the second housing 30 are provided through resiliency by connecting portions 64, 65, 66, 67 of an electrical terminal 50. The connecting portions 64, 65, 66, 67 are fabricated by bending a metal plate punched into a prescribed shape at a plurality of points at right angles, and include a crank shape having an enlargement in the vertical and horizontal directions.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a board-mounted electrical connector, and more particularly, to an electrical connector which can be freely moved so as to compensate for a slight displacement when mating with a mating connector.

[0002]

2. Description of the Related Art An example of this type of electrical connector is disclosed in
No. 0-32290. The disclosed electrical connector includes a first housing including a mating portion of a mating connector, and a second housing located along an outer periphery thereof. The first and second housings are configured to be movable by a spring elastic force caused by the shape of the electric terminal.
The connecting portion of the electric terminal connecting the first and second housings is formed by bending an elongated metal plate to be curved.

[0003]

The electrical connector disclosed in the above-mentioned publication is difficult to manufacture and assemble because a metal plate is bent and bent, and it is particularly difficult to control the spring characteristics of all the electrical terminals. . SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a floating board mounted connector which can guarantee an effective floating characteristic and can easily manufacture and assemble.

[0004]

According to the present invention, a first and a second housing, which are arranged at substantially the same height on a circuit board, are movably connected by a connecting portion of an electric terminal.
Wherein the housing is fixed to the circuit board and a mating portion is provided on the second housing to be mated with the mating connector.
A crank-shaped part formed by bending a punched metal plate at a plurality of locations at a right angle, having a plate surface orthogonal to the circuit board over its entire length, and having at least a portion extending vertically and horizontally. It is characterized by comprising.

[0005] Preferably, the horizontal portion extending in the substantially horizontal direction and the vertical portion extending in the substantially vertical direction constituting the crank-shaped portion have plate surfaces substantially orthogonal to each other.

Preferably, the horizontal portion is a first horizontal portion located in the second housing and extending from a contact portion connected to a mating connector, and one of the vertical portions from the first horizontal portion. A second horizontal portion provided in the height direction by a first vertical portion serving as a portion, wherein the first horizontal portion is arranged at a position close to the circuit board, and the second horizontal portion is It is arranged at a position away from the first horizontal portion.

[0007] Preferably, the vertical portion includes a second vertical portion extending downward from the second horizontal portion, the second vertical portion being located at a bottom end near the circuit board.
Supported by the housing.

Preferably, the electric terminal has a tine connected to a through hole of the circuit board, and the electric terminal is provided with first and second electric terminals having different structures of the tine, The tines are staggered when housed in the mold board mounted connector.

Preferably, the tines of the first electric terminal extend from near the outer surface of the first housing,
The tines of the second electrical terminal extend downwardly at a position away from the outer surface, and the second electrical terminal moves to the top side when the tines of the second electrical terminal are attached to the circuit board. Regulation means to prevent

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS With reference to the accompanying drawings, a floating board mounted connector according to a preferred embodiment of the present invention will be described in detail below.

FIG. 1 is a perspective view showing the floating type board mounted connector of the present invention together with a mating connector, partially broken away.
FIG. 2 is a sectional view showing a fitted state of the pair of connectors shown in FIG.

According to FIG. 1, a floating board mounted connector (hereinafter simply referred to as a connector) 10 is a connector mounted on a circuit board 100 and formed in a frame shape arranged on the circuit board 100. First housing 20,
And a second housing 30 located inside the second housing 30. The first and second housings 20, 30 are located at approximately the same height. As shown in FIG. 2, the housings 20, 30 are integrally maintained by a plurality of electric terminals 50 housed therein. As will be described later, the electric terminal 50
Movably supports the first and second housings 20,30.

In the second housing 30 of the connector 10, a mating portion 31 capable of receiving the plug connector 90 is provided on the mating side.
Is configured. The contact part 51 of the electric terminal 50 is arranged on the inner surface of the fitting part 31. According to FIG. 2, it is understood that the contact portion 51 is of a male type and contacts the female contact 91 of the mating connector 90. In the present embodiment, the mating connector 90 is shown as being mounted on the circuit board 200. As shown in FIG. 2, in the connector 10, the electric terminals 50 form opposing rows along both sides of the fitting portion 31, and the electric terminals 50 are arranged in opposition to the mating connector 90.
As a result, a well-balanced contact pressure is provided at the time of mating, and a highly reliable electrical interconnection between the circuit boards 100 and 200 is realized.

The electric terminal 50 is press-fitted and fixed to the first housing 20 at a bottom position of the first housing 20.
While having the press-fitting portion 53, it has a second press-fitting portion 52 which is press-fitted into the second housing 30 at a position on the bottom side of the contact portion 51, and has a spring structure capable of elastic deformation between the two press-fitting portions 51, 52. Are connected by a connecting portion. This provides the relative play characteristics of the first and second housings 20,30. The coupling portion is a relatively long first horizontal portion 63 extending horizontally from the second press-fit portion 52 along the bottom surface of the second housing 30 from the second housing 30 and extending into the interior of the first housing 20. A first vertical portion 64 extending upwardly through the interior of the first housing 20, a relatively short second horizontal portion 6 extending substantially horizontally outwardly from the top end;
5 and a second vertical portion 66 depending from the end and extending to the first press-fit portion 53. Details of these structures will be described later. The first horizontal base 63 is placed so as to substantially contact the bottom ends 23, 33 of the first and second housings 20, 30, but can be displaced relative to at least the first housing 20 in a horizontal plane direction. Is done. The other part of the connecting portion is spaced from the first housing 20 by a predetermined dimension and is arranged so as not to interfere with the normal.

The electric terminal 50 further has a tine 54 at the bottom of the first press-fitting portion 53 which is received in the through hole 110 of the circuit board 100 and is electrically connected thereto. Therefore, near the bottom end of the first housing 20, the electric terminals 50 are connected to the circuit board 10.
It is understood that when connected to zero, the first housing 20 is fixed in place on the circuit board 100 and the second housing 30 is free to move inside. As will be understood from the above description of the connecting portion and the details of the electric terminal 50 described below, the second housing 30 is arranged in a three-dimensional direction with respect to the first housing 20 (see an arrow xyz in FIG. 1). On the other hand, it can be idle.

FIGS. 3A and 3B are diagrams showing first electric terminals used in the floating type board-mounted connector of FIG. 1, wherein FIG. 3A is a plan view, FIG. 3B is a front view, and FIG. FIG.
4A and 4B are diagrams showing a second electric terminal used for the floating board mounted connector of FIG. 1, wherein FIG. 4A is a plan view and FIG.
Is a front view, (c) is a right side view, and (d) is a cross-sectional view along line BB in (b).

As the electric terminals 50 used for the connector 10, two kinds of electric terminals 50a shown in FIG. 3 and an electric terminal 50b shown in FIG. 4 are prepared. As described in connection with FIGS. 1 and 2, these are alternately arranged within the connector 10 to form a pair of longitudinally opposed rows of the first and second housings 20,30.
The difference between the two is that the tines 54a mounted on the circuit board,
The structure in the vicinity of 54b will be described first.

The electric terminals 50a and 50b are both manufactured by stamping and bending a metal plate. As described above, between the contact portion 51 and the tines 54a, 54b, the electric terminals 50a, 50b are connected to the first horizontal portion 63, the first vertical portion 64, the second horizontal portion 65, and the second horizontal portion 65. A vertical portion 66 is provided. As shown in FIG. 3 and FIG. 4, these portions are all configured to have a plate surface extending in the height direction. In particular, according to FIGS. 3 (c) and 4 (c), the first
It will be understood that the intermediate portion in the height direction of the second vertical portions 64, 66 is relatively narrow. First and second positions near the bottom end of the contact portion 51 and the second vertical portion 66
The press-fit projections 5 projecting from the side edges
6, 55 are provided. The press-fit protrusion 55 is formed slightly on the top side than the press-fit protrusion 56.

Particularly notable in connection with the electrical terminals 50a, 50b are the first horizontal portion 63, the first vertical portion 6
4 and the second horizontal portion 65 correspond to FIGS.
As shown in FIG. 3 (b), a crank-shaped portion having a widening in the vertical direction is formed, and FIG. 3 (a) and FIG.
(A) is that it constitutes a crank-shaped portion having a spread in the horizontal direction. With such a structure, sufficient spring deformation characteristics or play characteristics can be ensured despite being relatively small. In addition, according to the present embodiment, the second vertical portion 6
6 is connected to the second horizontal portion 65 at the top end while being fixed to the first housing 20 near the bottom end and
This provides additional spring characteristics because it is positioned opposite the vertical portion 64 of Therefore, according to the connector 10, extremely good play characteristics are provided in the three-dimensional direction including the displacement in the rotation direction.

Other advantages of the spring structure of the connecting portion according to the present embodiment are that it is easy to manufacture and assemble, can be manufactured at low cost, and is easy to manage the spring characteristics. That is, the connector can be completed only by press-fitting the electric terminal 50 into the first and second housings 20 and 30 like a normal electric terminal, and material can be efficiently removed at the time of punching the electric terminal 50. In addition, since there is no curved bent portion, there is an advantage that it is possible to provide a small-sized but well-controlled floating characteristic.

As described above, the electric terminals 50a,
50b differs in the configuration of tines 54a and 54b. As shown in FIG. 3, the tines 54a of the electrical terminals 50a are
Extends linearly depending from the second vertical portion 66.
However, the tines 54a of the electric terminals 50b are horizontally extended so as to return toward the contact portions 51.
1 and extends downward from the tip. As shown in FIG. 4D, the horizontal plate portion 71 extends in a concave portion 72 provided at the bottom end of the first vertical portion 64. This prevents a large displacement of the tines 54b.

As described above, since the electric terminals 50a and 50b are alternately arranged in the terminal row of the connector 10, the tines 54a and 54b of the electric terminals 50a and 50b are staggered on the bottom side of the connector 10. According to FIG.
4b is located at a substantially boundary position between the first and second housings 20, 30. That is, the connector 10 has a relatively small mounting area, but enables a sufficiently high-density connection. The tines 54a and 54b are formed in the through holes 1 of the circuit board 100.
10, the tine 54b can be relatively easily positioned because the horizontal plate portion 71 is received in the concave portion 72 as described above, and they are pushed into the through holes 110 of the circuit board 100. Sometimes the edge 73 of the recess 72 may provide a pressing end.

Since the concave portion 72 is formed sufficiently larger than the cross-sectional dimension of the horizontal plate portion 71, the horizontal plate portion 71 and the concave portion 72 are mounted after the connector 10 is once mounted on the circuit board 100.
Is the second housing 3 with respect to the first housing 20
0 does not hinder relative movement, but if the dimensions are set to a suitable size, the horizontal plate 7
It is also possible to stop it by their mutual interference via 1.

In addition, the horizontal plate portion 71 is connected to the first horizontal portion 6.
It should also be noted that it is located close to 3. That is, the second housing 30 is
When the first horizontal plate portion 63 is moved in a direction approaching the horizontal plate portion 71 due to relative movement of the first horizontal plate portion 71, the horizontal plate portion 71 can be restrained by appropriately setting its dimensions.
In such a case, as described above, since the electric terminals 50 constitute a pair of opposed rows, it should be noted that a similar structure on the opposite other row side can be set so as to prevent movement in the opposite direction. .

As described above, the preferred embodiment of the floating type board-mounted connector according to the present invention has been described. However, this is merely an example, and does not limit the present invention. Changes are possible. According to one variation, the first and second horizontal portions 63, 65 may be used to further improve the spring structure of the electrical terminal 50.
May be partially narrowed.

[0026]

According to the floating board mounting connector of the present invention, the connecting portion for connecting the first and second housings is formed by bending the stamped metal plate at a plurality of positions at right angles. Since it is configured to include a crank-shaped portion having a plate surface orthogonal to the surface and extending at least partially in the vertical and horizontal directions,
It provides a small but controlled and effective play characteristic, and can be more easily and inexpensively manufactured and assembled.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a floating board mounted connector of the present invention, partially cut away together with a mating connector.

FIG. 2 is a sectional view showing a fitted state of the pair of connectors shown in FIG. 1;

FIGS. 3A and 3B are diagrams showing first electrical terminals used in the floating board mounted connector of FIG. 1, wherein FIG. 3A is a plan view and FIG.
Is a front view, and (c) is a right side view.

FIGS. 4A and 4B are diagrams showing a second electric terminal used in the floating board mounting connector of FIG. 1, wherein FIG. 4A is a plan view and FIG.
Is a front view, (c) is a right side view, and (d) is a cross-sectional view along line BB in (b).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Floating board mounting connector 20 1st housing 30 2nd housing 31 Fitting part 50 Electric terminal 64 1st horizontal part (connection part) 65 1st vertical part (connection part) 66 2nd horizontal part ( Connection part) 67 Second vertical part (Connection part) 100 Circuit board

Claims (1)

[Claims] A first substrate disposed at substantially the same height on a circuit board;
And a second housing is movably connected by a connection portion of an electric terminal, the first housing is fixed to the circuit board, and a fitting portion is provided on the second housing to be fitted with a mating connector. In the floating type board mounted connector, the connecting portion is formed by bending a stamped metal plate at a plurality of positions at a right angle, has a plate surface orthogonal to the circuit board over the entire length, and has at least a part thereof. A floating board mounted connector, characterized in that it is configured to include a crank-shaped portion that extends vertically and horizontally.