JPH0527235B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a connector used for mounting between electronic circuit boards constituting electronic equipment and electronic computers.

(Description of the prior art) Conventionally, this type of connector has been designed so that it can be mated without requiring a large insertion force, and it has been designed to separate the contacts into blocks and move the contacts in each block sequentially. Some devices are configured so that the moved contacts cross over the contacts provided on the respective substrates, thereby establishing electrical continuity.

Representative examples of the former and the former are shown in FIGS. 1 to 4.

FIGS. 1 and 2 are cross-sectional views showing the state of the connector before and after fitting, which allows insertion with a small force. 1st
The connector has a contact (male) 1 on the bottom surface of its housing 5, and is fixed to a board 3. on the other hand,
The second connector has contacts (female) 2 in the housing 6 that fit into the contacts 1, respectively, and is fixed to the substrate 4. Since the contact 2 is an elastic member, contact with the contact 1 is maintained by its restoring force.

The shapes of the contacts 1 and 2 are devised to reduce the insertion force during fitting without reducing the contact force between the male and female contacts. However, since the insertion force cannot be reduced to zero, the insertion force increases as the number of pins fitted at the same time increases, resulting in a drawback that there is a limit to the number of pins.

FIGS. 3 and 4 are cross-sectional views showing the state before and after fitting of a connector which is divided into blocks and whose contacts straddle each other.

The first connector has a contact 1 (male) at the bottom of the housing 5 and is fixed to the substrate 3.

On the other hand, the second connector has a contactor (male) 7 at the bottom of the housing 6, and incorporates contactors 8 (movable type) divided into blocks, and is fixed to the board 4. When the second connector is inserted into the first connector as shown in FIG. 3 and the projection 8a of the contact 8 is pushed to the left, the contact 8 moves and the contacts 1 and 7 are connected. Since the contact 8 is provided for each block, the insertion force does not increase even if the number of pins increases, but the number of parts increases accordingly. Therefore, the structure has become complicated and the cost has increased.

(Description of the Object of the Invention) The object of the present invention is to solve each of the drawbacks of the above-mentioned conventional examples, and to provide a connector that can easily connect connectors with a large number of pins at low cost and with a simple configuration. It is about providing.

(Description of Structure of the Invention) In order to achieve the above object, the connector according to the present invention has a U-shaped cross section, and the bottom surface of the connector has the same protrusion amount in the vertical direction of the cross section and parallel direction. A first connector in which a large number of first contacts are arranged so as to have different protrusion amounts;
A second contact is provided corresponding to each of the contacts, the tip of which is moved by a lever inserted from the side, and has a restoring force applied to it.
a second connector having a complementary shape to the first connector, and when the first connector is inserted into the second connector, the tips of the first and second contacts are shifted and overlapped. When the lever is pulled out, the first and second contacts are connected by the restoring force of the second contact, and when the lever is inserted, the first and second contacts are separated.

(Description of Examples) Hereinafter, the present invention will be described in more detail with reference to the drawings. 5 and 6 are cross-sectional views showing embodiments of the connector according to the present invention. First contacts (male) 14a and 1 having different lengths are provided on the bottom of the U-shaped housing 10 constituting the first connector.
4b and 14c are arranged on the stairs. The first contact, which has the same length as each contact 14a, 14b, and 14c, is placed in the vertical direction of the U-shaped cross section on the bottom (same direction as the arrow direction in which the housing 10 is inserted in FIG. 8).
are also arranged. The other end of each contact is bent into an L shape and connected to a conductor pattern on the board 4, and the housing 10 is also fixed to the board 4. The housing 9 of the second connector has a complementary external shape so that it can be inserted into the housing 10 of the first connector, and a groove with a step is formed on its bottom surface. A second spring with a different tip position than each step of this groove.
contacts (female) 13a, 13b, and 13c are arranged. A second contact having the same length as each contact 13a, 13b, 13c is similar to the housing 10,
They are also arranged in the longitudinal direction of the housing 9. As can be seen from FIG. 10, the tip 15 of the second contact 13 has a U-shape with a side wall bent inward, and can elastically clamp the first contact. Guide grooves 9a are provided on the side surface of the housing 9, corresponding to the vertical rows of the contacts. The guide groove 9a serves as a guide when the lever 11 is inserted or pulled out. The state in which the lever 11 is inserted is as shown in Figure 5, and each contact 1
The tips of 3a, 13b, and 13c are moved above the groove. FIGS. 9 and 10 are diagrams showing the insertion process and the shape of the lever 11. The tip of the lever 11 has an inclined portion and is pointed. Therefore lever 1
1 is inserted, its tip is inserted under each contact, and is gradually lifted up by the slope, and the tip of each contact moves to an empty area in the groove of the housing 9 for retraction.

This empty area can be secured because the contacts are of different lengths for each row, and the contact positions for each row are shifted on the stairs.

FIG. 5 is a diagram showing a state in which the housing 9 is inserted into the housing 10 before the first connector and the second connector are fitted together. In this state, the tips of the second contacts 13a, 13b, 13c are only positioned above the tips of the corresponding first contacts, so no pushing force is required for insertion.

FIGS. 7 and 8 are diagrams showing the direction of insertion of the connector. The first connector may be inserted from the front of the second connector as shown in FIG. 7, or the first connector may be inserted from the side of the second connector as shown in FIG.

Next, when the lever 11 is pulled out, the tips of the second contacts are released, and the corresponding first contacts are successively inserted by the restoring force, and the distance between the first and second connectors is electrically connected. The connection between the first and second contacts at this time is not by pushing the other contact into contact against the restoring force of the contact, but by using the restoring force of the second contact to connect the first contact. Since the contact is brought into contact with the contact, no direct force is required for connection, and only the force needed to pull out the lever 11 to release the second contact is sufficient.

To disconnect the connector, use lever 1 opposite to the above.
1 along the guide groove 9a, the first contact is separated from the second contact, and the housing 9 is detached from the housing 10. At this time, the levers 11 are separated one pair at a time by their inclined portions.

(Description of Effects of the Invention) As explained in detail above, the present invention makes the contact positions different in level to ensure an empty area for the tip of the contact to retreat, and uses the restoring force of the tip of the contact to connect the corresponding contact. Since the structure is such that they are brought into contact, the force required during fitting is reduced. Further, when detaching, the contacts of the contacts are sequentially released one pair at a time by inserting a lever, so there is no need for force to open all the contacts at once as in the conventional case. Therefore, even connectors with a large number of pins can be easily mated and uncoupled.

In addition, the same number of first connectors and second contacts is sufficient, and the configuration does not require any other contacts, so the number of parts is reduced compared to conventional connectors that require less insertion force. This has the effect of reducing costs.

[Brief explanation of the drawing]

Figures 1 and 2 are cross-sectional views showing an example of a conventional connector, Figures 3 and 4 are cross-sectional views showing still other examples of conventional connectors, and Figures 5 and 6 are according to the present invention. A sectional view showing an embodiment of the connector, FIG.
FIG. 8 is a perspective view showing the direction in which the connector is fitted, FIG. 9 is a perspective view showing the state in which the lever is pulled out from the connector, and FIG. 10 is a view showing how the contact is moved by the lever. 1, 7...Contact child (male), 2...Contact child (female),
3, 4... Board, 5, 6, 9, 10... Housing, 8... Contactor (movable type), 11... Lever, 1
2... Guide groove, 13... Second contactor (female),
14...First contact (male).

Claims (1)

[Claims] 1. The cross section is U-shaped, and the bottom of the
a first connector in which a large number of first contacts are arranged such that the amount of protrusion is the same in the vertical direction of the cross section and the amount of protrusion is different in the parallel direction; a second connector having a shape complementary to the first connector, the second connector having a second contact whose distal end is moved by a lever inserted from the side and is given a restoring force; When the first connector is inserted into the second connector, the tips of the first and second contacts are shifted and overlapped, and when the lever is pulled out, the second contact is restored. A connector configured such that first and second contacts are connected by force and separated by insertion of a lever.