CN209963373U

CN209963373U - Lever-type connector cover and electrical connector

Info

Publication number: CN209963373U
Application number: CN201920440356.5U
Authority: CN
Inventors: 陈大磊; 黄绥彬
Original assignee: Ann Po Fu Central Electric (shanghai) Co Ltd
Current assignee: Ann Po Fu Central Electric (shanghai) Co Ltd
Priority date: 2019-04-02
Filing date: 2019-04-02
Publication date: 2020-01-17
Anticipated expiration: 2029-04-02

Abstract

The utility model provides a lever connector shroud and electrical connector. The connector cover comprises a housing and a locking lever which is pivotally arranged on the housing and can pivot between a locking position and an unlocking position, when the locking lever pivots to the locking position, a clamping part of the locking lever is jointed to a lock catch of the housing, the lever type connector cover also comprises a positioning lock which is slidably arranged in the housing and is configured to move between a pre-locking position and a final locking position, when the pre-locking position is formed, a space for the lock catch to flex is formed between the lock catch and the positioning lock, and when the positioning lock enters the final locking position, the positioning lock blocks the lock catch to flex. The utility model provides high be connected reliability between shroud and the connector main part.

Description

Lever-type connector cover and electrical connector

Technical Field

The utility model relates to a technical field of electrical connector, more specifically say, the utility model relates to a lever-type connector.

Background

There are several styles of lever type connectors on the current market. Fig. 1 shows a conventional housing 1 for a lever connector. The housing 1 is provided with a locking lever 2 mounted by a pivot shaft in a U-shape, which locking lever 2 is pivotable into a locking position in engagement with a flexible catch 3 on the housing 1. The catch 3 has a recess, on which a part of the locking lever 2 is snapped, so that the locking lever 2 effects the locking of the housing 1.

Currently, there are vibrations in some practical environments, and therefore, users have made higher and higher demands on the stability and shock resistance of the connector. With such prior art connectors, it is particularly desirable to add a locking mechanism to prevent the locking lever from being removed from the latch recess due to the resistance.

SUMMERY OF THE UTILITY MODEL

In order to overcome the deficiencies in the prior art, the utility model provides a lever connector shroud, connector shroud has casing and the pivot locking lever of installing on the casing, locking lever pivot ground is set up on the casing and can pivot between latched position and unblock position, when locking lever pivot to latched position, the block portion of locking lever is joined to on the hasp of casing, wherein, lever connector shroud still includes the positioning lock, the positioning lock slidable mounting is in the casing, the positioning lock is constructed and is moved between prelock position and final lock position, when in prelock position, form the space that supplies the hasp flexure between hasp and the positioning lock, and when the positioning lock gets into final lock position, the positioning lock blocks the hasp flexure.

According to an aspect of the utility model, the location tool to lock has the elastic arm, and on the elastic arm passed through block mechanism installation casing, block mechanism included the convex part and the hole portion of matching.

According to yet another aspect of the present invention, the projection is formed on the free end of the resilient arm, the aperture includes a first aperture portion and a second aperture portion provided on the housing, the projection engaging the first aperture portion when the detent lock is in the pre-lock position; the male portion engages the second bore portion when the retaining lock is in the final lock position.

According to still another aspect of the present invention, the convex portion includes a rib and a wing portion provided on the elastic arm, the rib protrudes with respect to an outer surface of the elastic arm, the wing portion protrudes with respect to the rib, and the hole portion includes a first hole portion and a second hole portion provided on the case; wherein the first aperture portion is configured to receive the rib and the wing when the position lock is in the prelock position and the second aperture portion is configured to engage the wing when the position lock is in the final lock position.

According to yet another aspect of the present invention, the width of the wing portion is greater than the width of the rib.

According to a further aspect of the invention, the locking lever is provided with an unlocking portion for unlocking the positioning lock from the prelock position, the unlocking portion being adapted to engage the resilient arm when the locking lever is pivoted close to the locked position to thereby pivot the resilient arm inwardly of the housing.

According to a further aspect of the present invention, the locking lever is U-shaped and has a cross bar of the first arm portion, the second arm portion connected between the first arm portion and the second arm portion, the engaging portion is located on the cross bar, and the unlocking portion includes a convex rib formed on an inner side of the first arm portion and the second arm portion, respectively.

According to still another aspect of the present invention, the housing has a first side wall, a second side wall opposite to the first side wall, the first arm of the lock lever is pivotally connected to the first side wall, the second arm is pivotally connected to the second side wall, the lock catch is formed between the first side wall and the second side wall in a cantilever shape,

according to another aspect of the present invention, when the positioning lock is in the pre-lock position, the one end of the positioning lock protrudes from the housing, and the one end is provided with the flange.

In addition, the utility model also provides an electrical connector, including connector main part and as above lever connector shroud.

Adopt the basis the utility model discloses a shroud is owing to add the position of positioning lock in order to restrict the hasp, is showing from this and has improved shroud and connector main part complex reliability, is particularly suitable for the occasion that exists the vibration to use.

In the use according to the utility model discloses an in the use of shroud, when locking lever pivot to specific position, the unblock portion on the lever removes the locking from the prelock position with the lock location, has improved the convenience of operation, and can not increase the size of product, has saved the installation space of connector.

Drawings

The subject matter of the present invention and the various advantages thereof are more completely understood by referring to the following detailed description in which reference is made to the accompanying drawings:

fig. 1 shows a perspective view of a prior art lever connector cover.

Fig. 2 shows a perspective view of a lever connector cover according to a preferred embodiment of the present invention.

Fig. 3A shows a side view of a lever connector cover according to a preferred embodiment of the present invention with the positional lock in a prelock position.

Fig. 3B illustrates another side view of the lever connector cover according to the preferred embodiment of the present invention with the positional lock in the prelock position.

Fig. 4A shows a side view of the lever connector cover of the preferred embodiment of the present invention with the positional lock in the final lock position.

Fig. 4B shows a partial cross-sectional view of the lever connector cover of the preferred embodiment of the present invention with the positional lock in the final lock position.

List of reference numerals

10 cover cap

20 casing

21 first side wall

22 second side wall

23 Lock catch

231 recess

25 first hole part

26 second hole part

30 locking lever

31 first arm part

32 second arm part

33 Cross bar

35 unlocking part

50 positioning lock

51 stop part

52 resilient arm

53 convex rib

55 wing part

56 Flange

Detailed Description

The present invention will be further described with reference to the following embodiments and drawings, and more details will be set forth in the following description in order to provide a thorough understanding of the present invention, but it is obvious that the present invention can be implemented in various other ways different from those described herein, and those skilled in the art can make similar generalizations and deductions according to the actual application without departing from the spirit of the present invention, and therefore, the scope of the present invention should not be limited by the contents of the embodiments.

Fig. 2 shows a perspective view of a lever connector cover 10 according to a preferred embodiment of the present invention. The cover 10 is suitable for being connected to the body (not shown) of an electrical connector, particularly for use in applications such as the interior of a vehicle where vibrations are present, the cover 10 according to the present invention being effective against vibrations, ensuring the possibility of connection. The mating structure of the cover 10 to the connector body is conventional and will not be described in detail herein.

As shown in fig. 2, the connector cover 10 has a housing 20 and a lock lever 30 mounted on the housing 20. At least one side of the housing 20 is open to receive the body of an electrical connector (not shown). The housing 20 has a first side wall 21 and a second side wall 22 disposed opposite and substantially parallel to the first side wall 21. The locking lever 30 is rotatably mounted on the housing 20 by a pivot mechanism, the locking lever 30 preferably being generally U-shaped. The U-shaped locking lever 30 has a first arm 31, a second arm 32 parallel to the first arm 31, and a cross bar 33 connected between the first arm 31 and the second arm 32. The first arm 31 of the lock lever 30 is pivotally connected to the first side wall 21 of the housing 20, while the second arm 32 is pivotally connected to the second side wall 22 of the housing 20. In use, the locking lever 30 is pivotable relative to the housing 20 between a locked position, as shown in fig. 4A, and an unlocked position, as shown in fig. 3A.

The housing 20 of the cover 10 further includes a latch 23. in the preferred embodiment, the latch 23 is cantilevered between the first side wall 21 and the second side wall 22 of the housing 20. The catch 23 has a fixed end about which the catch 23 resiliently flexes, a free end, and a recess 231 between the fixed end and the free end, the recess 231 being configured to engage a portion of the lock lever 30. The fixed end of the locker 23 is connected to the first and

second sidewalls

21 and 22, and the free end of the locker 23 forms an inclined surface for guiding the locking lever 30. When the locking lever 30 is pivoted to the catch 23, the catch 23 can flex towards the inside of the housing 20 under the force exerted by the lever 30, the catch on the crossbar 33 of the locking lever 30 snapping into the recess 231 of the catch 23, whereby the locking lever 30 enters its locking position.

The connector cover 10 according to the invention comprises in particular a positioning lock 50. The positioning lock 50 is slidably mounted in the housing 20 adjacent to the shackle 23 of the housing 20, and the positioning lock 50 is movable between a pre-lock position and a final lock position.

As shown in fig. 4B, the positioning lock 50 is provided with a stopper portion 51. When the locking bar 50 is in the pre-locking position, the locking bar 23, in particular the free end of the locking bar 23, is offset from the stop 51, so that a space is formed between the locking bar 23 and the locking bar 50 which allows the locking bar 23 to flex elastically inwards. When the positioning lock 50 is moved into the final lock position as shown in fig. 4B, the stop 51 of the positioning lock 50 moves to a position aligned with the free end of the shackle 23, thereby blocking the shackle 23 from flexing.

The positioning lock 50 is mounted into the housing 20 by a snap-fit mechanism. Preferably, the positioning lock 50 has a pair of resilient arms 52, as shown in FIG. 2, each resilient arm 52 engaging a

respective side wall

21, 22 of one of the housings 20. Specifically, the click mechanism includes a rib 53 provided on the elastic arm 52, and as shown in fig. 3B, the rib 53 protrudes with respect to the outer surface of the elastic arm 52 so as to form a stepped surface between the rib 53 and the outer surface of the elastic arm 52. The tip of the rib 53 is provided with a wing 55, and the wing 55 further protrudes with respect to the outer surface of the rib 53, and another stepped surface is formed between the rib 53 and the wing 55. The width of the wing 55 is greater than the width of the rib 53 in a direction perpendicular to the direction in which the positioning lock 50 is inserted. As can be seen in fig. 3A, the wings 55 and ribs 53 form a generally T-shaped member which mates with the first bore portion 25 provided in the side wall 21 of the housing 20.

As best seen in fig. 3A, the side wall 21 of the housing 20 is provided with a first hole portion 25 and a second hole portion 26. The first hole portion 25 is generally T-shaped, and when the detent lock 50 is in the prelock position, as shown in fig. 3B, the wing 55 and rib 53 are received in the first hole portion 25 and protrude out of the first hole portion 25. The shape of the second aperture 26 corresponds to the shape of the portion of the wing 55 protruding over the rib 53. as shown in FIG. 4A, when the detent lock 50 is moved into the final lock position, at least a portion of the wing 55 engages the second aperture 26, with the rib 53 generally positioned within the housing 20. It should be understood that the shape and size of the ribs 53 and wings 55 can be adapted to the size and shape of the connector cover 10.

In the preferred embodiment of the present invention, the locking mechanism of the positioning lock 50 and the housing 20 are provided in pairs, that is, the first side wall 21 and the second side wall 22 of the housing 20 are provided with the corresponding first hole portion 25 and the second hole portion 26, and are symmetrical in position.

As described above, when the rib 53 and the wing 55 are received in the first hole portion 25, the lock 50 is temporarily held at the preliminary lock position, and at this time, the lock 50 cannot move to the final lock position because the rib 53 and the wing 55 protrude from the first hole portion 25. In order to release the positioning lock 50 from the pre-lock position, the unlocking portion 35 is provided on the lock lever 30, in particular, according to the preferred embodiment of the present invention. As the locking lever 30 pivots towards its locking position, the unlocking portion 35 engages the resilient arm 52 forcing the resilient arm 52 to pivot inwardly of the housing 20.

Specifically, the unlocking portion 35 may be a rib provided on the lever 30, which protrudes from the inner sides of the

arm portions

31 and 32 of the lever 30, and which will engage with the rib 53 of the elastic arm 52 when the locking lever 30 is pivoted to the locking position, so that the elastic arm 52 of the positioning lock 50 is deflected inward, and the rib 53 and the wing 55 are disengaged from the

first hole portions

25, 26 of the

side walls

21 and 22 of the housing 20, thereby allowing the positioning lock 50 to be pushed into the final locking position as the lever 30 is pivoted.

As can be seen from fig. 3B, the ribs are symmetrically protrudingly provided on the inner sides of the two

arm portions

31 and 32 of the lock lever 30. To facilitate the application of force to the resilient arms 52 of the lock 50 by the ribs of the lock lever 30, it is preferred that a surface of the ribs of the lock 50 that engage the ribs of the lock lever 30 be rounded or chamfered.

Furthermore, when the positioning lock 50 is in the prelock position, one end of the positioning lock 50 protrudes from the housing 20 and is provided with a flange 56 adapted to manipulate the positioning lock 50, in particular to extract the positioning lock 50 before removing the cover 10.

To facilitate removal of the lock 50 from its final locking position, the stepped surface of the wing 55 projecting relative to the rib 53 and the inner peripheral surface of the second hole portion 26 are preferably inclined at an angle to each other.

Hereinafter, the locking operation of the lever type connector cover 10 of the present invention will be described with reference to the accompanying drawings.

As shown in fig. 2, the lock lever 30 is in the unlock position and the lock 50 is in the pre-lock position, at which the rib 53 and the wing 55 of the lock 50 are received in the first hole portion 25, the position of the lock 50 is kept fixed with respect to the housing 20, and in this state, the cover 10 is engaged to the mating connector body (not shown). The locking lever 30 is rotated to pivot toward the catch 23 on the housing 20. When the locking lever 30 is pivoted to a certain angle, the rib on the arm of the locking lever 30 contacts the rib 53 of the positioning lock 50 protruding from the first hole 25, and under the force generated by the pivoting of the locking lever 30, the elastic arm 52 deflects toward the inner cavity of the housing 20, and at this time, the positioning lock 50 is allowed to be disengaged from the pre-locking position, and as the locking lever 30 enters its locking position, the positioning lock 50 enters its final locking position, and the wing 55 of the positioning lock 50 is received in the second hole 26, and at this time, the engaging portion on the crossbar 33 of the locking lever 30 engages in the recess 231 of the lock catch 23, and the stopping portion 51 of the positioning lock 50 reaches below the free end of the lock catch 23, i.e., reaches the position shown in fig. 4B. At this point, the positioning lock 50 reaches its final locking position, preferably with the end of the stop 51 abutting against the bottom of the lock catch 23, so that the engaging portion of the locking lever 30 abuts against the stop surface of the lock catch 23, thereby achieving a reliable vibration-resistant connection of the electrical connector cover.

Adopt according to the utility model discloses a shroud 10 owing to add the position of positioning lock 50 in order to restrict hasp 23, is showing from this and has improved shroud 10 and connector main part complex reliability, is particularly suitable for the occasion that exists the vibration and uses.

In the use of the shroud 10 according to the present invention, when the locking lever 30 is pivoted to a specific position, the unlocking portion 35 on the lever unlocks the positioning lock 50 from the pre-locking position, which improves the convenience of operation, and does not increase the size of the product, saving the installation space of the connector.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, any modification, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention, all without departing from the content of the technical solution of the present invention, fall within the scope of protection defined by the claims of the present invention.

Claims

1. A lever-type connector cover having a housing and a lock lever pivotally mounted on the housing, the lock lever being pivotally provided on the housing and being pivotable between a lock position and an unlock position, a catching portion of the lock lever being engaged to a catch of the housing when the lock lever is pivoted to the lock position,

wherein the lever connector cover further comprises a positioning lock slidably mounted in the housing, the positioning lock configured to move between a pre-lock position in which a space for flexing of the lock catch is formed between the lock catch and the positioning lock, and a final lock position in which the positioning lock blocks flexing of the lock catch when the positioning lock enters the final lock position.

2. The lever type connector cover as claimed in claim 1, wherein the positioning latch has a resilient arm mounted to the housing by a snap-fit mechanism comprising mating male and female portions.

3. The lever type connector cover as claimed in claim 2, wherein the projection is formed on the free end of the elastic arm, the hole portion includes a first hole portion and a second hole portion provided on the housing,

the boss engages the first bore portion when the detent lock is in the pre-lock position;

the male portion engages the second bore portion when the detent lock is in the final lock position.

4. The lever type connector cover as claimed in claim 2, wherein the projection includes a rib and a wing provided on the elastic arm, the rib projecting with respect to an outer surface of the elastic arm, the wing projecting with respect to the rib, and the hole portion includes a first hole portion and a second hole portion provided on the housing;

wherein when the position lock is in the prelock position, the first aperture portion receives both the rib and the wing,

and the second aperture portion is configured to engage at least a portion of the wing portion when the positional lock is in the final lock position.

5. The lever type connector cover as set forth in claim 4, wherein the width of said wing is greater than the width of said rib.

6. The lever type connector cover as claimed in claim 2 or 3, wherein the locking lever is provided with an unlocking part for locking the positioning lock from the pre-lock position,

the unlocking portion is adapted to engage the resilient arm when the locking lever is pivoted proximate the locking position to thereby pivot the resilient arm inwardly of the housing.

7. The lever type connector cover as claimed in claim 6, wherein the lock lever is U-shaped and has a cross bar of the first arm and the second arm connected between the first arm and the second arm, the engaging portion being located on the cross bar, and wherein the unlocking portion includes ribs formed on inner sides of the first arm and the second arm, respectively.

8. The lever type connector cover as set forth in claim 7, wherein the housing has a first side wall, a second side wall opposite the first side wall,

the first arm of the locking lever is pivotally connected to the first side wall, the second arm is pivotally connected to the second side wall, and the catch is formed in a cantilever fashion between the first and second side walls.

9. The lever type connector cover as claimed in claim 1, wherein when the lock is in the prelock position, an end of the lock protrudes from the housing, the end being provided with a flange.

10. An electrical connector comprising a connector body and a lever connector cover as claimed in any one of claims 1 to 9.