JPH024994B2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present application relates to a waterproof type connector.

[Prior art]

Conventionally, in this type of connector, wire rods terminated with contacts were passed through a rubber bushing one by one using a special tool, and the wire rods were housed in a cavity of a housing in a sealed state. For this reason, it takes time and effort to assemble the wire into the connector, and there has been a demand for a simple means for sealing the wire into the connector.

Furthermore, in the past, most of the pins were round (no directionality) in consideration of workability when penetrating a wire into a rubber bushing. was impossible.

[Purpose of the invention]

The present invention was invented in order to solve these conventional disadvantages, and its purpose is to improve the economic efficiency and workability when assembling the wire into a connector by passing the wire through the rubber bushing without using any jigs or tools. Another object of the present invention is to provide a connector that can be connected to a tab-shaped contact provided on a printed circuit board.

[Explanation of Examples]

The connector assembly according to the present application will be explained in detail below based on illustrated embodiments.

FIG. 1 shows a first embodiment of the invention. The illustrated connector is a female connector, and in actual use, it is connected to a tab of a male connector 40 provided on a printed circuit board 50, as shown in FIG. 6, for example. However, the connector assembly of the present application is not limited to this, and may be connected as a pair of female and male connectors, for example. Furthermore, whether the connector is male or female depends on the shape of the contact, so it is not essential, and the connector assembly of the present application can be applied to either.

In FIG. 1, numeral 1 denotes wire rods, each of which terminates at a contact 2. In FIG. Additionally, the contact typically has a cylindrical shape with a rectangular cross section, but as described above, the present invention is not limited to this.

Reference numeral 30 denotes a housing, which has a cavity for accommodating a rubber bushing and, if necessary, a holding plate, which will be described later, and a hole 36 for receiving the contact passing through the rubber bushing and holding plate.
The manner in which the contact is received in the hole is as shown in FIGS. 2, 3, and 6, which will be described later.

10 is a rubber bushing, which has a hole 11 for penetrating the wire. This hole consists of a recessed part 11A provided on one side of the rubber bushing and a through hole 11B penetrating from the bottom of the recessed part to the other side of the rubber bushing. The concave portion is provided with an opening having a shape matching the cross section of the contact.

The contact with the wire terminated is first inserted into the recess of the rubber bushing, and then penetrated through the through hole while expanding it. At this time, since the opening shape of the concave portion matches the cross section of the contact, the direction of the contact is determined. Further, each wire rod is sealed by the through hole of the hole.

The rubber bushing is fixed in the cavity of the housing, and the means for this are specifically illustrated as the engagement projection 14 on the rubber bushing and the engagement groove 31 on the housing.

Reference numeral 20 denotes a holding plate, which has a hole 21 through which the terminal end of the wire passed through the rubber bushing is inserted.

The hole of this holding plate is formed by integrating a part through which the contact is inserted and a part which engages the terminal end of the wire, and more specifically, the hole is large enough to allow the contact to be inserted therethrough. the first having an opening;
It consists of a through hole 21A and a second through hole 21B having a smaller opening than the first through hole.

Now, the contacts of each wire are inserted into the first through holes (in the illustrated embodiment, after the contacts are inserted through this holding plate, they are respectively accommodated in the holes 36 that communicate with the outside of the housing from the bottom of the cavity. ), then when the holding plate is displaced (slided), each wire is connected to the contact and the wire (constricted).
is engaged with the second through hole (see FIGS. 2 to 5).

Another embodiment of the holding plate is shown in FIG. The illustrated plate is disc-shaped (therefore the housing housing it also has a cavity with a circular opening)
First, the contact 2' of each wire is inserted into the hole 11' of the plate. The contact is on flange 2'A
, the hole needs to have a diameter sufficient to allow this flange to pass through. After each wire rod is inserted into the through hole of the illustrated plate, by rotating the plate, each of the wire rods comes into engagement with the hole portion of the plate.

In the embodiment of FIG. 1, the retaining plate is provided with, for example, a spring member 22 on one side edge of the plate so that it can be locked within the housing. The spring member locks the retaining plate within the cavity of the housing by pressing the retaining plate against the inner wall on the side opposite the spring member.

This locking means can also be realized by providing latches 23 on the sides of the retaining plate and corresponding notches in the inner wall of the housing, as shown in FIG.

In order to move (slide) the holding plate temporarily latched by the locking means, insert the holding plate movable tool 35 into the through hole 34 provided in the housing, and The plate is displaced by engaging the tool in a notch 24 in the edge (see FIG. 2).

Note that the holding plate may be displaced by other means such as, for example, making the circumferential surface of the contactor a cam surface and displacing the holding plate as the contactor is inserted into the through hole of the holding plate. is possible.

In order to indicate the displacement of the holding plate, for example, a pole 25 protruding from the holding plate may be used.
is an indicator hole 3 bored in the housing.
5. The indicator hole is located in the through hole portion 3.
5A and a blind hole portion 35B, and as the holding plate is displaced, the pole moves to the blind hole portion and becomes invisible from the outside, and the movement of the plate can be confirmed from the outside.

In the figure, 33 is a means for displacing the holding plate only in a predetermined direction within the housing, specifically, movement in a direction crossing the direction along the surface of the holding plate. Consists of a stopper that prohibits.

2 and 3 show that in the first embodiment of the invention shown in FIG. 1, the contact is engaged with the holding plate and accommodated in the contact holding hole 36 in the housing. Show the steps.

First, as shown in FIG. 2, a tool 35 for moving the holding plate is inserted in advance into a through hole 34 for inserting the tool provided in the housing, and the tool is engaged with a notch 24 provided on the side edge of the holding plate. and slide the holding plate.

At this time, since the first through hole 21A of the holding plate and the hole 36 of the housing are aligned, the contact is stored and held in the latter hole through the former through hole.

When the tool 35 is removed, the holding plate is restored to its original position by the action of the spring member of the holding plate as shown in FIG. 2 to hold the contact housed in the housing.

Figures 4 and 5 show the state of engagement between the terminal end of the wire and the holding plate, the former being the first in the hole.
When the contact is inserted into the through hole 21A of the latter,
Displace (slide) the holding plate to remove the second part of the hole.
This shows a state in which the connecting portion (constricted portion) between the wire and the contact is engaged with the through hole 21B.

FIG. 6 shows a longitudinal cross-sectional view of a connector assembly according to the present invention connected to a male connector provided on a printed circuit board.

In the illustration, 50 is a printed circuit board, 41 is
A tab-shaped terminal (contact), 40 is a housing of a male connector, and 37 is a waterproof O-ring.

The connector assembly of the present invention is used herein as a female connector.

The configuration of the connector assembly according to the present application has been described in detail above, and the following unique effects can be achieved from the configuration.

In other words, the connector according to the present application allows the terminal end of the wire to be inserted into the rubber bushing without using special jigs and tools, and at that time, by matching the shape of the non-circular terminal end with the shape of the recessed part of the rubber bushing, insertion is possible. The direction of the wire is kept constant, and the wire passing through the rubber bushing is sufficiently sealed by the through hole communicating with the recess.

In addition, when using the holding plate according to the present invention in the housing, the terminal ends of the wire rods are inserted into the holes of the holding plate, and then the terminal ends are engaged with the plate at once by sliding the plate. Since the parts can be held together, the efficiency of assembly work is greatly improved.

Furthermore, by forming the contactor of the present invention into a cylindrical shape with a rectangular cross section, it can be used in a wide range of applications, such as making it possible to connect to a flat tab terminal (contactor) provided on a printed circuit board.

[Brief explanation of drawings]

Figure 1 of the drawings shows a connector according to an embodiment of the present invention.
An exploded view of the assembly, FIGS. 2 and 3 are cross-sectional views showing the assembly procedure in the same embodiment, FIGS. 4 and 5 are perspective views showing the main parts of the assembly procedure, and FIG. 6 is the same as the above embodiment. FIG. 7 is a perspective view showing another embodiment of the holding plate according to the present invention; FIG. 8 is a perspective view showing still another embodiment of the holding plate according to the present invention. It is a diagram. [Explanation of symbols of main parts], 1...Wire rod, 2...
...Contact, 10...Rubber bushing, 11...Hole, 11A...Recess, 11B...Through hole, 20...
...Holding plate, 21... Hole, 30... Housing.

Claims (1)

[Scope of Claims] 1. A connector for connecting a wire terminated by a conductive contact, comprising: an insulating housing 30 having a hole 36 for receiving the connector; and supported by the housing. a movable retaining member 20 having a latch portion 21B for latching engagement with the contact to retain the contact within the bore; and a movable retaining member 20 extending within the housing and communicating with the retaining member and a hole 34 in the housing which allows the latch to be disengaged from the contact by inserting a tool therein and engaging the movable retaining member 20, so that the contact is inserted into the hole in the housing. A connector characterized by being able to be pulled out from the section. 2. The connector according to claim 1, wherein the hole 34 of the housing is provided so as to penetrate through the back surface of the housing. 3 A connector for connecting a wire terminated by a conductive contact, which has a cavity extending inside the front part of the housing and communicating with the cavity and having a rear part inside the housing for receiving the contact. an insulative housing 30 having an extending bore 36; a bore 11 hermetically received in the housing cavity and aligned within the housing with the housing bore 36 for sealingly receiving the contact; a rubber bushing 10 supported by the housing and disposed adjacent the aperture 36 in the housing and having a rubber bushing 10 with the contact for retaining the contact within the aperture 36 of the housing; comprising a movable retaining member 20 having a latch portion 21B' for latching engagement, and a hole 34 extending through the back of the housing and communicating with the retaining member; The aperture 34 is adapted to receive a tool and engage the movable retaining member 20 such that the latching portion can be displaced from the latched position to allow the contact to be removed from the housing aperture. Connector. 4. The connector according to claim 3, further comprising fixing means (1) for sealingly fixing the rubber bushing to the cavity of the housing.
4, 31). 5. The connector according to claim 3, further comprising a seal extending around the outer peripheral surface of the rear surface of the housing so as to seal the connector when the housing 30 is inserted into the header 40 of the connector. A connector characterized in that it has means 37.