JPH04206176A - connector - Google Patents

Abstract

PURPOSE: To prevent male and female contacts from being slipped off so as to achieve secure connection by providing a cavity of a housing containing the male contact having a slit with a flexible arm for laterally supporting the male contact, a stepped part and a stopper. CONSTITUTION: A male contact 20 is inserted into a cavity 11 of a male housing 10. A female contact 30 having a through hole 31 for receiving the contact 20 inside the cavity 11 is brought into elastic contact with the elastic contact 20. The cavity 11 is provided with a flexible arm 8 for laterally supporting the contact 20, a stepped part on an opposite side, and a stopper 40 for supporting the contact 20 inside the cavity 11. Consequently, it is possible to excellently connect the contacts 20, 30 to each other, so as to prevent the contacts 20, 30 from being slipped off even with application of great inserting force.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present application relates to a connector used for connecting electronic components and electronic devices, and is particularly useful when it is necessary to securely lock male and female contacts. This invention relates to

[Prior Art] This type of connector requires a large insertion force when inserting a plug contact mounted in a housing into an opening of another contact to be engaged with the plug contact. At this time, a force opposite to the insertion direction is also applied to the plug contact, so it is necessary to firmly hold the plug contact within the cavity of the housing so that it does not come out of the cavity.

In addition, in the above case, a large force is also applied to the other contacts, so try to prevent the force applied to the "other contacts" from being transmitted to the other connecting parts of the connector as much as possible to prevent damage to the connector or the parts connected to it. need to be prevented.

° Particularly in the case of connectors that connect automotive electronic components, vibrations are intense, so it is essential to lock the contacts more firmly. Therefore, the structure is such that the plug contact is firmly tightened in the opening of the "other contact", and the force for press-fitting the plug contact into the opening becomes correspondingly large.

However, conventional connectors have not been able to sufficiently resist the insertion force when inserting such plug contacts, and have not been able to solve problems such as detachment of the contacts.

[Problems to be Solved by the Invention] The present invention was developed in view of these circumstances, and it eliminates the above-mentioned conventional problems and ensures that the contact does not come out of the housing even with a large insertion force, and that the contact is securely connected. The purpose is to provide a connector that can connect.

[Means for Solving the Problems] In order to achieve these objects, the present invention includes a housing having a cavity for accommodating a male contact, and a through hole for receiving the male contact inserted into the cavity. In the connector, the housing includes a flexible arm in the cavity that laterally displaces the male contact inserted into the cavity, and a flexible arm that engages the laterally displaced contact. To provide a connector characterized in that a stopper for holding the locked male contact in the cavity can be inserted and fixed in the cavity.

[Example] Hereinafter, the configuration of the present invention will be explained in detail by illustrating a waterproof connector.

1 and 2 show cross-sectional views of the connector with contacts connected.

In the illustration, 10 is a housing having a cavity 11 for housing a male contact (plug contact) 20, and 30 is a female contact having a through hole 31, 31 for receiving a male contact inserted into the cavity. .

The housing 10 has a flexible arm 12 in the cavity that laterally displaces a male contact inserted into the cavity, and a step part 13 that locks the laterally displaced contact, and further A stopper 40 for holding the locked male contact within the cavity is provided so as to be insertable and fixed within the cavity.

The structure of the stepped portion 13 and the stopper 40 will become clearer by referring to FIGS. 3 and 4, which show the state of the housing before inserting the male connector.

That is, the stepped portion 13 provided within the cavity is formed by the shoulder portion 15 of the protrusion 14 that projects into the cavity.

Further, the stopper 40 is provided opposite to the insertion direction of the male contact, and after the contact is housed in a predetermined position in the housing, which will be described later, the stopper 40 moves in the vertical (axial) direction of the housing to remove the contact. Hold.

Returning to FIGS. 1 and 2, the male contact 2
0 is a tab-type breath-fit contact, which has a slit 21 along the axial direction at its tip and a pair of ears 22 at its middle.

Further, the female contact 30 has a substantially U-shaped cross-sectional view at its main part, and the upper and lower contact pieces forming the main part are
Through hole 31 for receiving the tip of the male contact
．． It has 31. In this embodiment, as shown in FIGS. 5 and 6, the main part of the female contact is housed in the recessed part 32A of the housing 32, and is extended downward from the lower contact piece. The terminals thus prepared are soldered to the printed circuit board shown in FIGS. 1 and 2.

The ear portion 22 of the male contact and the shoulder portion 15 provided in the cavity are such that when the tip of the male contact is inserted into the through hole 31.31 of the female contact, the male contact The slits 21 (press-fit portions) of the male contacts engage to ensure electrical connection between the male and female contacts.In the illustrated embodiment, the upper and lower slits of the female contacts The contact piece is
They each have through holes 31, 31 of different sizes, and the male contacts only contact the through holes of the upper contact piece. As a result, the force that acts when the male and female contacts come into engagement contact is not transmitted to other connecting parts (for example, the soldering part to a printed circuit board), and the said parts are not damaged.

The housing 32 has a guide pin 32B that is inserted into the through hole of the printed circuit board 100 and a hole 32G that receives a guide protrusion 41 that extends from below the stopper. The housing 32 is fitted into the cavity 11 of the housing 10 of the connector as shown in FIGS. 1 and 2.

In addition, in FIG. 1, 16 is a wire rod that terminates a contact, 17A is a bushing, 18 is a back plate, 17B is a seal ring, and 19 is a case cap.

[Operations and Effects] Let us now consider the case where a male contact 20 is inserted into the housing 10 shown in FIG. 3. The contact is inserted into the cavity of the housing while being guided by the protrusion 14. At this time, the tip of the contact is inserted into the cavity against the pressing force of the flexible arm 12, but the ear portion 22 of the contact is laterally displaced at the step 13 and engages with the step. match. In this state, by moving the stopper in the vertical (axial) direction, the side surface 42 of the stopper presses the middle part (including the ear part) of the contact and holds the contact so that the ear part does not separate from the stepped part.

At this time, the stopper is latched within the housing by a suitable latch means.

As shown above, the housing that houses the male contact,
The male contact is inserted into the opening of the female contact by fitting into the housing 32 of the female contact 30 fixed on the printed circuit board. Since the male contact has a slit at its tip, it exhibits the action of a compressed spring when inserted into the opening of the female contact, and both male and female contacts are firmly engaged and locked.

At this time, the shoulder that receives the lower contact piece of the female contact receives most of the insertion force of the male contact, so the insertion force is directly transmitted to the printed circuit board or other parts of the connector. Therefore, accidents such as damage to the part can be prevented.

[Brief explanation of the drawing]

FIG. 1 is a partial sectional view of the main part of a connector according to an embodiment of the present invention, FIG. 2 is a partial sectional view of the main part taken along a cross section perpendicular to the cross section of FIG. Fig. 4 is a partially cutaway plan view of the connector in the state shown in Fig. 3, and Fig. 5 is a partial cross-sectional view of the connector before male contacts are inserted. Fig. 5 is a partially cutaway plan view of the connector in the state shown in Fig. 3. Partial Sectional View, FIG. 6 shows a partial cross-sectional view of the same housing, taken through a section perpendicular to that of FIG. FIG, 1 FIG, 2 FIG 3 Throwing FIG 4

Claims (1)

[Claims] 1. Consists of a housing 10 having a cavity 11 for housing a male contact 20, and a female contact 30 having a through hole 31 for receiving the male contact inserted into the cavity. In the connector, the housing includes, within the cavity, a flexible arm 12 that laterally displaces a male contact inserted into the housing, and a step portion 13 that locks the laterally displaced contact. A connector characterized in that it is further provided with a stopper 40 for holding the locked male contact in the cavity so that it can be inserted and fixed into the cavity. 2. The connector according to claim 1, wherein the stepped portion 13 provided in the cavity is formed by a shoulder portion 15 of a protrusion 14 projecting into the cavity from an inner wall defining the cavity. connector. 3. In the connector according to claim 1 or 2, the male contact is a breath-fit contact having a slit 21 along the axial direction at the tip thereof and a pair of ears 22 at the middle part. A connector characterized by: 4. In the connector according to any one of claims 1 to 3, the main part of the female contact has a substantially U-shaped longitudinal section, and the upper and lower contact pieces forming the main part are , a through hole 31 for receiving the tip of the male contact.
A connector characterized by having: 5. The connector according to claim 4, wherein the female contact is mounted in a housing 32 separate from the housing. 6. The connector according to claim 3, wherein the ear portion 22 of the male contact and the shoulder portion 1 provided in the cavity.
5 means that when the male contact is inserted into the through holes 31, 31 of the female contact, the male contact can withstand the force applied to the male contact and the male contact can withstand the force applied to the male contact. A connector characterized in that the slits 21 of the contacts engage to ensure electrical connection between the male and female contacts. 7. In the connector according to claim 4, the upper and lower contact pieces of the female contact have through holes 31, 31 of different sizes, respectively, and the male contact inserted into the through hole has a hole 31 on the upper side thereof. A connector characterized in that it makes contact only with the through hole of the contact piece.