CN214898986U

CN214898986U - Insert for connector and insert assembly

Info

Publication number: CN214898986U
Application number: CN202120440165.6U
Authority: CN
Inventors: 胡奎
Original assignee: Harting Electric GmbH and Co KG
Current assignee: Harting Electric Stiftung and Co KG
Priority date: 2021-03-01
Filing date: 2021-03-01
Publication date: 2021-11-26
Anticipated expiration: 2031-03-01

Abstract

An insert for a connector includes an insulator having a cavity with a plurality of first contact receiving holes for receiving first contacts and a plurality of second contact receiving holes for receiving second contacts, wherein the first contacts and the second contacts are different types of contacts; and a holding plate attached to a connection side of the insulator for holding the second contact in the cavity. The utility model discloses still relate to an inserts subassembly. The utility model discloses can be holding two kinds of different contacts to satisfy electric power and signal transmission needs and satisfy impact and vibration requirement simultaneously.

Description

Insert for connector and insert assembly

Technical Field

The utility model relates to an inserts and an inserts subassembly of constituteing by the inserts for the connector.

Such inserts (also referred to as ferrules, inserts) are commonly used in industrial connectors, such as heavy-duty plug connectors, to retain contacts, such as power contacts, signal contacts, and the like.

Background

Existing heavy-duty connectors are mainly used for electrical or signal connections between different devices. In practice, inserts are sometimes required to accommodate different series of contacts simultaneously to meet the needs of transmitting power and signals.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an inserts for connector, this inserts can hold the contact of two kinds of differences to satisfy electric power and signal transmission needs and satisfy simultaneously and strike and vibration requirement.

According to an aspect of the present invention, there is provided an insert for a connector, comprising an insulator, a cavity of the insulator having a plurality of first contact receiving holes for receiving first contacts, and a plurality of second contact receiving holes for receiving second contacts, wherein the first contacts and the second contacts are different types of contacts; and a holding plate attached to a connection side of the insulator for holding the second contact in the cavity.

In an advantageous manner, the insert can be embodied as a male insert, in which the male contact is accommodated.

In an advantageous manner, the insert can be embodied as a female insert, in which the female contact is accommodated.

In an advantageous manner, the first contact and the second contact are a power contact and a signal contact, respectively.

In one advantageous manner, the retaining plate is embodied as a U-shaped plate, comprising a middle plate and two elastic side plates, wherein the middle plate is provided with a plurality of holes and a plurality of retaining arms extending parallel to the side plates, wherein each hole is provided with at least one retaining arm; wherein the side plate is provided with a window. Advantageously, the side panel has a plurality of windows. It will be understood by those skilled in the art that reference herein to "lateral side" refers to the side of a component (e.g., an insulator) in the lateral direction, and "longitudinal side" refers to the side of a component (e.g., an insulator) in the longitudinal direction; wherein "transverse direction" refers to the width direction of the component and "longitudinal direction" refers to the length direction of the component.

Advantageously, the retaining arm is elastic, the free end of the retaining arm being provided with a bend. Preferably, the bend is an inward bend. When the holding plate is attached to the insulator, the holding arms project into the respective second contact-accommodating openings, in particular by means of their bends, holding the second contacts in the second contact-accommodating openings. Advantageously, when it is desired to remount the second contact, the second contact can be conveniently removed from the insulating body by acting a tool, such as a screwdriver or the like, on the holding arm, in particular on the curved portion thereof, to disengage the second contact from the holding arm.

In an advantageous manner, the intermediate plate is provided with guide pins and slots. Preferably, the intermediate plate is provided with two guide pins and a slot between the two guide pins.

In an advantageous manner, the longitudinal sides, preferably both opposite longitudinal sides, of the insulating body are provided with latching lugs. When the holding plate is mounted on the insulator, the intermediate plate thereof covers a part of the connection side of the insulator, and the two side plates thereof respectively cover the two longitudinal sides of the insulator. The catch lugs on the longitudinal sides catch with the windows, the number of catch lugs corresponding to the number of windows.

In an advantageous manner, the insulating body is provided with guide fool-guards on the longitudinal and/or transverse sides, in the form of ribs or slots, for cooperation with corresponding guide fool-guards of the mating insert. In one example, the insulator is provided with a plurality of guide fool-guards on one or both longitudinal sides. In another example, the insulator is provided with a plurality of guide fool-guards on one or both lateral sides. In yet another example, the insulator is provided with guide fool-guards on both the longitudinal and lateral sides. Advantageously, the guide fool-guard has both guide and fool-guard functions. When the inserts and the matching inserts are correctly installed, namely, the plugging sides of the inserts and the plugging sides of the matching inserts are plugged with each other, the guiding fool-proof piece plays a guiding role, and the plugging is smoother. When the inserts and the matching inserts are installed wrongly, namely the inserting side of the inserts is inserted into the connecting side of the matching inserts, or the inserts are inserted into the non-matching inserts, the fool-proof piece is guided to play the fool-proof role, so that the mistaken installation between the two inserts is prevented. Furthermore, when the insert and the mating insert, i.e. the male insert and the female insert, are plugged together, the guided fool-proofing element also prevents displacement of the two in the longitudinal direction and/or in the transverse direction, so that the plugging is more stable, thereby being shock-and vibration-resistant.

In an advantageous manner, the insulating body is provided with a holding portion on a lateral side. Advantageously, when the insert is a male insert, the holding portion is embodied as a hollow projection on a lateral side of the insulator, which is open towards the cavity. Preferably, the hollow projection is in the form of a rail having a channel.

In one advantageous embodiment, when the insert is embodied as a female insert, the holding section is embodied as a flange section on the lateral side of the insulating body, which flange section has a cutout.

In one advantageous manner, the protective earth contact can be mounted on the insulator, in particular on a lateral side of the insulator. The first end of the protective ground contact is held in the holding portion and the second end is engaged in the slot of the holding plate.

In one advantageous embodiment, when the insert is embodied as a male insert, the protective earth contact is accordingly embodied as a male protective earth contact, the first end of which, which is held in the hollow projection, is configured as a bent spring plate.

In one advantageous embodiment, when the insert is embodied as a female insert, the protective earth contact is accordingly embodied as a female protective earth contact, the first end of which, which is held in the flange section, is embodied as fixed. Advantageously, the lateral sides of the female insert are provided with guide fool-guards formed with recesses in which the first ends of the protective earth contacts passing through the indentations of the flange portions are received. Advantageously, the first end of the female protective ground contact is not or only very little resilient.

In an advantageous manner, the lateral sides of the insert are provided with steps to support the legs of the protection ground contacts.

According to another aspect of the present invention, there is provided an insert assembly, comprising the aforementioned male insert and female insert.

According to the above technical scheme of the utility model, through setting up the holding plate, can accommodate different series of contacts in same inserts. The contact is securely retained in the receiving hole by the snap-lock engagement of the retention plate with the insulator of the insert, the mating of the retention arm of the retention plate with the contact receiving hole. Through the cooperation of the guide fool-proofing piece of public inserts and female inserts, make the inserts subassembly more firm to through the crooked flexure strip design of the one end of public protection ground contact, can ensure the electric contact of public protection ground contact and female protection ground contact, thereby satisfy higher impact and vibration requirement.

Drawings

Embodiments of the invention are shown in the drawings and are explained in more detail below. The attached drawings show that:

fig. 1 is a front view of an insert according to one embodiment of the present invention, wherein the insert is a male insert;

FIG. 2 is an inverted front view of the insert of FIG. 1;

FIG. 3 is an exploded view of the insert of FIG. 1;

fig. 4 is a front view of an insert according to another embodiment of the present invention, wherein the insert is a female insert;

FIG. 5 is an inverted front view of the insert of FIG. 4;

FIG. 6 is an exploded view of the insert of FIG. 4;

fig. 7 is a front view of an insert assembly according to an embodiment of the present invention;

FIG. 8 is a cross-sectional view of the insert assembly of FIG. 7;

FIG. 9 is a top view of the insert assembly of FIG. 7; and

fig. 10 is a longitudinal cross-sectional view of the insert assembly of fig. 7.

Detailed Description

The technical solution of the present invention will be further specifically described by the following embodiments with reference to the accompanying drawings. In the specification, the same or similar reference numerals denote the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the general inventive concept and should not be construed as a limitation of the invention.

Fig. 1 to 3 show an insert for a connector according to an embodiment of the present invention. The insert is a male insert 1, comprising an insulator 10 made of plastic, substantially cuboid-shaped, with a connection side C and a plug-in side P. The direction from the connection side to the plugging side is referred to as the plugging direction. The insulator 10 has two longitudinal sides parallel to each other, i.e. the two sides of longer length in fig. 1, and two transverse sides parallel to each other, i.e. the two sides of shorter length in fig. 1, which are not marked for the sake of clarity.

The cavity of the insulator 10 has a plurality of contact accommodating holes therein, including a plurality of first contact accommodating holes 20 located on the left side in fig. 1 and a plurality of second contact accommodating holes 21 located on the right side in fig. 1. As can be seen in fig. 1, the two contact receiving bores have different apertures for receiving the first contact 30 and the second contact 31, here the first male contact and the second male contact, respectively. Preferably, the first male contact and the second male contact are different types of contacts.

Both lateral sides of the insulator 10 are provided with

hollow protrusions

11, 12, respectively. The projection 11 is on the left side in fig. 1 for holding part of the first contact accommodating hole 20, and mounting flanges are formed on both sides of an approximately central portion of the projection 11. The projection 12 is on the right in fig. 1 for receiving a Protective Earth (PE) contact 50, here an end 51 of a male protective earth contact, and is therefore also referred to as a holder. The projection 12 opens into the cavity of the insulator 10 and is formed with a channel 121, substantially in the form of a rail. The inner side of the lateral side opposite to the projection 12 is provided with two guiding fool-proof pieces 13 with holes and the outer side of the lateral side is provided with two steps 14 close to the connection side a. Both longitudinal sides of the insulating body 10 are provided with recesses near the connecting side C, in which recesses latching lugs 15 are provided. The number of detent lugs is shown as 3 in fig. 3, but the number may also be less than 3 or more than 3. The inner side of the longitudinal sides of the insulator 10 is also provided with a plurality of guide fool-guards 16, here provided in the form of ribs.

The insert 1 further comprises a retaining plate 40. As shown in fig. 1 and 2, the retaining plate 40 is attached to the attachment side C of the insert, covering the attachment side of the insert. As shown in fig. 3, the retaining plate 40 is U-shaped and made of plastic and comprises an intermediate plate 41 and two resilient side plates 42 extending perpendicularly to the intermediate plate, the side plates 42 being provided with windows 46, the number of which corresponds to the number of latching lugs. The intermediate plate 41 is substantially rectangular or square in shape and has a plurality of holes 43 (fig. 2). The inner side of the intermediate plate 41 is provided with a plurality of retaining arms 44, the retaining arms 44 having elasticity, extending parallel to the side plates 42 and provided with bent portions 45 at the movable ends thereof. Preferably, each hole 43 is provided with at least one retaining arm 44. The intermediate plate 41 is provided with two guide pins 47 on one lateral side, between which a slot 48 (fig. 2) is formed. The side plates of the retention plate are resilient such that when the retention plate is pushed in from the connection side of the insulator towards the plugging side, the side plates deflect outwardly over the latch lugs of the insulator and then spring back to latch with the latch lugs.

When the holding plate 40 is attached to the insert 1, the guide pins 46 of the holding plate 40 enter into the corresponding guides 17 of the insulator 10, so that the holding plate is correctly guided onto the insulator. The latching lugs 15 then latch onto the windows 46, thereby securing the retaining plate to the insulator. At this time, the holes 43 correspond one-to-one to the second contact accommodating holes 21, and the retaining arms 44 project into the corresponding second contact accommodating holes 21. When the second contact 31 is inserted into the second contact accommodating hole 21 via the hole 43, the bent portion 45 of the holding arm 44 abuts against the second contact, thereby holding the second contact in the second contact accommodating hole.

Protective ground contacts may be mounted on the lateral sides of the insert 1 to provide ground protection of the insert. As shown in fig. 3, the protection ground contact, here the male protection ground contact 50, comprises a first end 51 and a second end 52 opposite thereto, preferably hook-shaped, and an intermediate portion therebetween. The first end is in the form of a curved resilient sheet. The middle part has two mounting flanges 54 extending perpendicular to the first end 51 towards one side, which mounting flanges have screw holes for screwing with screws, and two legs 53 extending at the opposite side towards the second end 52. When the male protective ground contact 50 is mounted on the insert 10, the male protective ground contact is inserted from the connection side C with its first end 51 protruding from under the projection 12 of the insulator 10 into the channel 121 of the projection, its legs 53 bearing on the step 14 of the insulator 10 and its second end 52 engaging in the slot 48 of the retaining plate 40, thereby securing the male protective ground contact 50 on the insert.

Fig. 4 to 6 show an insert for a connector according to another embodiment of the present invention. The insert is a female insert 1', and the same parts as the male insert 1 are given the same reference numerals and are not described again here. The female insert 1 'comprises an insulator 10' made of plastic for accommodating first and second contacts 30 ', 31' of different types, here first and second female contacts. The lateral side of the insulator 10 'is provided with a flange portion 12', also referred to as a holding portion, which flange portion 12 'has a notch 121' for passing through one end 51 'of the protective earth contact 50'. The lateral sides of the insulating body 10 ' are also provided with a guiding fool-proofing piece 13 ' in which a recess is formed for holding one end 51 ', here a female protective ground contact, of the protective ground contact 50 ' passing through the gap 121 '. The longitudinal sides of the insulating body 10 'are provided with guide fool-proofing elements 16' on the plug-in side, here in the form of slots. The female protective ground contact 50 'comprises a first end 51', a second end 52 'and a middle portion comprising a leg 53' and a mounting flange 54, which differs from the male protective ground contact 50 mainly in that the first end 51 'is less wide to pass through the gap 121' and to be held in the groove guiding the fool-proofing member 13 ', and the first end 51' is not or less elastic and thus remains fixed after it is received in the groove.

Fig. 7 to 10 show an insert assembly according to an embodiment of the invention, comprising a male insert 1 and a female insert 1', which are plugged together by means of a plugging side. During the plugging process, the guiding fool-proofing elements 16 of the longitudinal sides of the male insert and the guiding fool-proofing elements 16' of the longitudinal sides of the female insert cooperate with each other to prevent relative displacement of the two inserts in the longitudinal direction. The fool-proof guide 13 on the lateral side of the male insert and the fool-proof guide 13' on the lateral side of the female insert cooperate to prevent relative displacement of the two inserts in the lateral direction. After the plugging is completed, the elastic first end of the male protection grounding contact 50 is contacted with the first end of the female protection grounding contact 50', even if the male protection grounding contact is subjected to stronger impact and vibration, the elastic first end can still ensure the electric contact between the male protection grounding contact and the female protection grounding contact, and the protective grounding of the whole insert assembly is realized.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention.

Claims

1. An insert (1, 1 ') for a connector, characterized in that the insert comprises an insulator (10, 10'), the cavity of which has a plurality of first contact-accommodating holes (20) for accommodating first contacts (30, 30 '), and a plurality of second contact-accommodating holes (21) for accommodating second contacts (31, 31'), wherein the first contacts and the second contacts are different types of contacts; and a holding plate (40) attached to the connection side (C) of the insulator for holding the second contact (31, 31') in the cavity.

2. The insert (1, 1') for a connector according to claim 1, characterized in that said retaining plate (40) is implemented as a U-shaped plate comprising an intermediate plate (41) and two elastic side plates (42); wherein the intermediate plate is provided with a plurality of holes (43) and a plurality of retaining arms (44) extending parallel to the side plates, wherein each hole (43) is provided with at least one retaining arm (44); wherein the side plate is provided with a window (46).

3. The insert (1, 1') for a connector according to claim 2, wherein the movable end of the retention arm (44) is provided with a bend (45); wherein the intermediate plate (41) is provided with a guide pin (47) and a slot (48).

4. The insert (1, 1 ') for a connector according to claim 3, wherein the retaining arm (44) is adapted to retain the second contact (31, 31') in the second contact accommodating hole (21); wherein the second contact (31, 31 ') is detachable from the insulator (10, 10') by means of a tool acting on the holding arm (44).

5. The insert (1, 1 ') for a connector according to claim 3, wherein the longitudinal sides of the insulator (10, 10') are provided with snap lugs (15) for snap-locking with the windows (46) of the side plates; wherein the insulation body is provided with guide fool-proofing means (13, 16; 13 ', 16') on the longitudinal and/or transverse sides for cooperation with corresponding guide fool-proofing means of the mating insert for guiding and fool-proofing purposes.

6. The insert (1, 1 ') for a connector according to claim 5, characterized in that the insulator (10, 10 ') is provided with a retaining portion (12, 12 ') at a lateral side.

7. The insert (1, 1 ') for a connector according to claim 6, characterized in that a protective earth contact (50, 50') can be mounted on a lateral side of the insulator (10, 10 '), wherein a first end (51, 51') of the protective earth contact is held in the holding portion (12, 12 ') and a second end (52, 52') is engaged in the slot (48).

8. The insert (1, 1') for a connector according to claim 7, characterized in that the insert is embodied as a male insert (1); wherein the holding portion is embodied as a hollow projection (12) on a lateral side of the insulator (10), which is open towards the chamber; wherein the protective earth contact is embodied as a male protective earth contact (50); wherein a first end (51) of the male protective ground contact (50) held in the hollow projection (12) is configured as a bent resilient sheet.

9. The insert (1, 1 ') for a connector according to claim 7, characterized in that it is embodied as a female insert (1'); wherein the holding part is embodied as a flange part (12 ') having a cutout (121 ') on a lateral side of the insulator (10 '); wherein the protection earth contact is embodied as a female protection earth contact (50'); wherein a first end (51 ') of the female protective earth contact (50 ') held in the flange section (12 ') is embodied to be fixed.

10. An insert assembly comprising an insert (1, 1 ') for a connector according to claim 8 and an insert (1, 1') for a connector according to claim 9.