CN111769399A - Lever-type connector housing and electrical connector - Google Patents
Lever-type connector housing and electrical connector Download PDFInfo
- Publication number
- CN111769399A CN111769399A CN201910261398.7A CN201910261398A CN111769399A CN 111769399 A CN111769399 A CN 111769399A CN 201910261398 A CN201910261398 A CN 201910261398A CN 111769399 A CN111769399 A CN 111769399A
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- CN
- China
- Prior art keywords
- lock
- lever
- housing
- arm
- connector cover
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/533—Bases, cases made for use in extreme conditions, e.g. high temperature, radiation, vibration, corrosive environment, pressure
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention provides a lever type connector cover and an electric 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 present invention improves the reliability of connection between the cover and the connector main body.
Description
Technical Field
The present invention relates to the field of electrical connectors, and more particularly, 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.
Disclosure of Invention
To overcome the disadvantages of the prior art, the present invention provides 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 capable of pivoting between a lock position and an unlock position, a catch of the lock lever engaging a catch of the housing when the lock lever is pivoted to the lock position, wherein the lever type connector cover further comprises a positioning lock slidably mounted in the housing, the positioning lock being 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.
According to one aspect of the invention, the positioning latch has a resilient arm mounted to the housing by a snap-fit mechanism including mating male and female portions.
According to still another aspect of the present invention, a projection is formed on the free end of the resilient arm, the bore portion including a first bore portion and a second bore portion provided on the housing, the projection engaging the first bore portion when the detent lock is in the prelock 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 convex rib and a wing portion provided on the elastic arm, the convex rib protrudes with respect to an outer surface of the elastic arm, the wing portion protrudes with respect to the convex rib, and the hole portion includes a first hole portion and a second hole portion provided on the housing; 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 a further aspect of the invention, the wing has a width 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 moving 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 still another aspect of the present invention, the lock lever is U-shaped and has a cross bar of the first arm portion and the second arm portion connected between the first arm portion and the second arm portion, and the engaging portion is located on the cross bar, wherein the unlocking portion includes ribs formed on inner sides of the first arm portion and the second arm portion, respectively.
According to yet another aspect of the present invention, the housing has a first side wall, a second side wall opposite 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 catch is formed in a cantilever shape between the first side wall and the second side wall,
according to a further aspect of the invention, when the lock is in the prelock position, one end of the lock protrudes from the housing and the other end is provided with a flange.
In addition, the invention also provides an electric connector which comprises a connector main body and the lever type connector cover.
By adopting the cover cap, the positioning lock is additionally arranged to limit the position of the lock catch, so that the matching reliability of the cover cap and the connector main body is obviously improved, and the cover cap is particularly suitable for occasions with vibration.
In the use process of the cover cap, when the locking lever pivots to a specific position, the unlocking part on the lever unlocks the positioning lock from the pre-locking position, the convenience of operation is improved, the size of a product cannot be increased, and the installation space of the connector is saved.
Drawings
The subject matter of the present invention and the various advantages thereof are more fully understood by reference to the following detailed description, taken with the accompanying drawings in which:
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 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 with the positional lock in a prelock position in accordance with a preferred embodiment of the present invention.
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 is further described in the following description with reference to specific embodiments and the accompanying drawings, wherein the details are set forth in order to provide a thorough understanding of the present invention, but it is apparent that the present invention can be embodied in many other forms different from those described herein, and it will be readily appreciated by those skilled in the art that the present invention can be implemented in many different forms without departing from the spirit and scope of the invention.
Fig. 2 shows a perspective view of the lever connector cover 10 according to the preferred embodiment of the present invention. The cover 10 is adapted to be attached to the body (not shown) of an electrical connector, and is particularly suitable for use in applications such as vehicle interiors where vibration is present during use, the cover 10 according to the present invention being effective against vibration, ensuring the possibility of attachment. 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 positioning lock 50 and the engaging mechanism of 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. When the positioning lock 50 is unlocked from the pre-lock position according to the preferred embodiment of the present invention, the unlocking portion 35 is particularly provided on the lock lever 30. 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 pull out 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, a locking operation process 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.
With the cover 10 according to the present invention, since the positioning lock 50 is added to limit the position of the lock catch 23, the reliability of the mating of the cover 10 with the connector body is significantly improved, and the cover 10 is particularly suitable for use in situations where vibration exists.
In the use of the cover 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 disclosed in terms of the preferred embodiment, it is not intended to limit the invention, and variations and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention. Therefore, any modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope defined by the claims of the present invention, unless the technical essence of the present invention departs from the content of the present invention.
Claims (10)
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 the lever connector cover of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910261398.7A CN111769399A (en) | 2019-04-02 | 2019-04-02 | Lever-type connector housing and electrical connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910261398.7A CN111769399A (en) | 2019-04-02 | 2019-04-02 | Lever-type connector housing and electrical connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111769399A true CN111769399A (en) | 2020-10-13 |
Family
ID=72718230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910261398.7A Pending CN111769399A (en) | 2019-04-02 | 2019-04-02 | Lever-type connector housing and electrical connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111769399A (en) |
-
2019
- 2019-04-02 CN CN201910261398.7A patent/CN111769399A/en active Pending
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| PB01 | Publication | ||
| PB01 | Publication | ||
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