JPH0562742A - Connector for board - Google Patents

Abstract

PURPOSE:To provide a connector which can connect the terminal installed on the tip of a cable to the terminal land of a board without soldering. CONSTITUTION:A connector 8 holds a terminal 9 fixed by press at a cable 6 inside a housing 10, and the terminal 9 is held projecting a contact 9b to the outside of the housing 10 so that it comes into contact with the terminal land 5 installed on a board 1 to be electrically connected thereto. A fixing means 11 is installed on the housing 10 so that the housing 10 is closely attached to the board 1 and the connection of the terminal 9 with the terminal land 5 is thereby secured.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector for connecting a cable and a board, and reduces the labor required for connecting to a terminal land provided on the board.

[0002]

2. Description of the Related Art As a connector 2 for electrically connecting to a board 1 such as a PCB, a terminal 4 held inside a housing 3 is soldered to a terminal land 5 provided on the board 1 as shown in FIG. I can give you one. The terminal 4 is pressure-bonded to the cable 6 that is exposed, and is held by the housing 3 so that the tip portion 4 a projects outside the housing 3. The terminal land 5 is formed on the substrate 1 so that the conductor pattern 7 provided on the substrate 1 is connected to the outside.
7 is a part of the conductor pattern 7 formed on the surface of the
In the example shown in, the terminal lands 5 provided on the upper and lower surfaces of the substrate 1
Are connected through the pattern holes 5a.

When connecting the connector 2 having the above structure to the substrate 1, the tip 4a of the terminal 4 is inserted into the pattern hole 5a of the terminal land 5 and the both 4a and 5a are soldered. As a result, the cable 6 and the substrate 1 are electrically connected and the connector 2 is fixed to the substrate 1.

[0004]

However, in the connector having the above structure, the tips of the terminals must be soldered to the pattern holes of the terminal lands one by one, as described above.
Especially when the number of poles is large, much labor is required. Further, the connector once connected has a drawback that the connection cannot be separated unless the solder is melted and removed again, and the maintainability is poor.

The present invention has been made in view of the above circumstances. An object of the present invention is to provide a connector capable of connecting a terminal attached to the tip of a cable to a terminal land of a board without soldering. is there.

[0006]

In order to achieve the above-mentioned object, the present invention has a terminal electrically connected to a terminal land provided on a substrate and a housing for holding the terminal therein. At the same time, the terminal is provided with a crimping portion that holds the cable that has been exposed, and a contact that is brought into contact with the terminal land of the substrate, and the housing is
Fixing means is provided for keeping the contact and the terminal land in contact with each other and for holding the housing on the substrate.

[0007]

In the connector according to the present invention, the terminal crimped to the tip of the exposed cable is held inside the housing, and the contact of the terminal comes into contact with the terminal land provided on the board, so that the cable and the board are connected. Are electrically connected. Further, the connector is fixed to the substrate by the fixing means provided in the housing, and the electrically connected state between the terminal and the terminal land is maintained.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A connector according to an embodiment of the present invention will be described below with reference to the drawings. In this embodiment, the same reference numerals are given to the portions having the same configuration as the conventional example, and the description thereof will be simplified.

1 to 3 show a connector 8 according to a first embodiment of the present invention. In the example shown in FIG. 1, the connector 8 is composed of terminals 9 arranged in three rows on the left and right sides, and a housing 10 holding these terminals 9 inside. As shown in FIG. 2, the terminal 9 has a crimping portion 9a and a contact point 9b. The terminal 9 is integrated with the cable 6 by holding the exposed cable 6 at the crimping portion 9a, and the contact point 9a is formed.
b is projected from the lower surface 10 a of the housing 10 and held inside the housing 10. The contact point 9b is formed in a hemispherical shape having a diameter larger than the diameter of the pattern hole 5a so that the contact point 9b is pressed into contact with the pattern hole 5a of the terminal land 5 provided on the substrate 1 and engaged with the pattern hole 5a. There is.

Further, the housing 10 is provided with fixing means 11 for holding the connector 8 on the substrate 1. As shown in FIG. 3, the fixing means 11 is formed in a hook shape on a lower surface 10a of the housing 10 by a plate portion 11a provided along the lower surface 10a. The connector 8 is held on the board 1 by sandwiching the board 1 with the lower surface 10a. The plate portion 11a has a protrusion 12 at the tip.
Is provided, and before the connector 8 is connected to the substrate 1, a gap smaller than the thickness of the substrate 1 is formed between the connector 8 and the lower surface 10a of the housing 10. When the substrate 1 is inserted, the plate portion 11a is elastically deformed to form a gap between the protrusion 12 and the lower surface 10a of the housing 10 into which the substrate 1 can be inserted.
The connector 8 is pressed onto the substrate 1 by the restoring force of the elastic deformation of a.

When connecting the connector 8 configured as described above and the substrate 1, first, the plate portion 11a of the fixing means 11 is elastically deformed so that the projection 12 at the tip of the plate portion 11a is placed on the lower surface 1b of the substrate 1. Substrate 1 with housing 1 hung
It is inserted between the lower surface 10a of 0 and the plate portion 11a of the fixing means 11. Next, the connector 8 is pushed to bring the contact 9b of the terminal 9 into contact with the pattern hole 5a of the terminal land 5 provided on the substrate 1 and bring them into contact with each other. As a result, the cable 6 and the board 1 are electrically connected, and the connector 8 is pressed against the board 1 by the fixing means 11, so that the tip 9b of the terminal 9 is engaged with the pattern hole 5a of the terminal land 5. Then, the two 9b and 5a are held so as not to be disconnected.

FIG. 4 shows a connector according to the second embodiment of the present invention. The connector has a structure different from that of the first embodiment in the fixing means of the connector to the board, and other elements are exactly the same.
The same components as those of the embodiment are given the same reference numerals and the description thereof will be omitted.

Fixing means 1 for the connector 13 according to this embodiment
4, a holding plate 16 facing the housing 15 with the substrate 1 sandwiched between the housing 15, the substrate 1, and the holding plate 16
And a clip 17 for simultaneously sandwiching and fixing. The clip 17 is a U-shaped member,
Protrusions 17a are provided inside both ends of the U-shape, and the distance between the vertices of the protrusions 17a is smaller than the total thickness of the housing 15, the substrate 1 and the pressing plate 16.
When the housing 15, the substrate 1 and the holding plate 16 are sandwiched inside, they are elastically deformed to widen the space, and the restoring force of the three members press each other.

When the connector 13 having the above structure is connected to the board 1, the tip end portion 9b of the terminal 9 and the pattern hole 5a of the terminal land 5 provided on the board 1 are aligned and brought into contact with each other. Then, press the holding plate 16 from below the substrate 1 to the housing 1
5 and then clip 16 to housing 1
By sandwiching 5, the substrate 1 and the holding plate 16, the contact 9b of the terminal 9 and the pattern hole 5a of the terminal land 5 are pressed against each other and held so that the two 9b and 5a are not disconnected.

FIG. 5 shows a connector according to the third embodiment of the present invention. The connector is different from the first and second embodiments in the structure for fixing the connector to the board, and the other elements are exactly the same, so the components of the first and second embodiments are the same. The same components as those of the above are denoted by the same reference numerals, and the description thereof will be omitted.

As a fixing means 19 for fixing the connector 18 according to this embodiment to the board 1, a through hole 21 in the housing 20 and a bolt 22 inserted in the through hole 21,
A unit case 23 for fixing the board 1 therein is provided, and the unit case 23 is provided with an insertion hole 23a for inserting the connector 18 and a female screw 24 for engaging with the bolt 22.

When connecting the connector 18 to the board 1, the connector 18 is inserted into the insertion hole 23 of the unit case 23.
a through hole 21 provided in the housing 20
And the female screw 24 provided on the unit case 23 is matched. In this state, the tip 9b of the terminal 9 and the terminal land 5
The pattern holes 5a of the terminals 9 are aligned with each other, and by fastening the bolts 22 to the female screws 24 through the through holes 21, the tip portions 9b of the terminals 9 come into contact with the pattern holes 5a of the terminal lands 5 and are pressed. , 9b and 5a are held so as not to come off.

In the first and second embodiments,
The electrical connection between the terminal 9 and the terminal land 5 is made by pressing the tip portion 9b of the terminal 9 into the pattern hole 5a of the terminal land 5 so that the terminals 9b and 5a are engaged with each other and are connected without displacement. However, as shown in FIG. 6, when the conductor pattern 7 is on the upper surface of the substrate 1 and the terminal land 5 is not provided with the pattern hole 5a, it is positioned on the lower surface 10a of the housing 10. The protrusion 25 may be provided, and the positioning hole 26 may be provided in the substrate 1 so that the terminals 25 and 26 are fitted with each other to prevent the positional displacement between the terminal 9 and the terminal land 5.

Further, in the third embodiment, the connector 18 is fixed to the unit case 23 to which the board 1 is fixed. However, when the board 1 is rigid, the board 1 itself is provided with a female screw 24. Alternatively, the connector 18 may be provided and the connector 18 may be directly fixed to the substrate 1.

[0020]

When the connector constructed as described above is used, the terminals crimped to the cable are brought into contact with the terminal lands provided on the substrate to be electrically connected, and are connected by the fixing means provided on the housing. Is held, there is no need to solder the terminals to the board as in the conventional case. Therefore, there is an effect that the labor required for connecting the cables can be significantly reduced.

Further, since the connector of the present invention is not soldered to the substrate, the connection can be easily separated by releasing the fixing means provided in the housing, and the maintainability is good.

[Brief description of drawings]

FIG. 1 is a perspective view showing a connector according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a terminal in FIG.

FIG. 3 is a vertical cross-sectional view showing a state in which the connector according to the first embodiment of the present invention is connected to a board.

FIG. 4 is a vertical sectional view showing a state in which a connector according to a second embodiment of the present invention is connected to a board.

FIG. 5 is a vertical sectional view showing a state in which a connector according to a third embodiment of the present invention is connected to a substrate.

FIG. 6 is a vertical sectional view showing a state in which a connector according to another embodiment of the present invention is connected to a substrate.

FIG. 7 is a vertical sectional view showing a connector in a conventional example.

[Explanation of symbols] 1 ... Board 5, 5 ... Terminal land, 6 ... Cable, 9 ...
..Terminals, 9a .... Crimping portions, 9b .... Contacts, 10, 15,
20 ... Housing, 11, 14, 19, ... Fixing means.

Claims (1)

[Claims] 1. A terminal (9) electrically connected to a terminal land (5) provided on a substrate (1), and a housing (10, 15, 20) holding the terminal therein. The terminal is provided with a crimping portion (9a) for holding the cable (6) that is exposed, and a contact (9b) that is brought into contact with the terminal land of the substrate, and the housing is provided with the contact and the terminal land. A board connector, characterized in that it is provided with fixing means (11, 14, 19) for holding the housing and the board in contact with each other and holding the housing on the board.