CN1845386B

CN1845386B - Lever type connector

Info

Publication number: CN1845386B
Application number: CN2006100733031A
Authority: CN
Inventors: 福井昌之; 长尾圭祐; 横田辉夫
Original assignee: Yazaki Corp
Current assignee: Yazaki Corp
Priority date: 2005-04-08
Filing date: 2006-04-07
Publication date: 2010-08-18
Anticipated expiration: 2026-04-07
Also published as: JP2006294358A; JP4478060B2; CN1845386A

Abstract

The present invention is to provide a lever type connector to assure unlocking of a lever locking portion at a small size connector. The lever type connector has a cover having electric wire holder ribs at a rear surface of the cover. The electric wire holder ribs are disposed at a base portion of the lever locking portion and protrude downwardly from the rear surface of the cover so as to abut the electric wires. The electric wire holder ribs extend laterally to the electric wires and have a enough height to prevent the electric wires from interfering with a clearance, which allows the lever locking portion to move into the clearance. The clearance assured by the electric wire holder ribs ensures unlocking of the lever locking portion even when the electric wires occupy a large space in the connector.

Description

Lever-type connector

Technical field

The present invention relates to a kind of lever-type connector (lever type connector), have the connector shell that holds wire end, be connected in the cap that connector shell is used to guide and draw electric wire, and the bar that is connected in connector shell.

Background technology

Patent JP2003-272768A discloses a kind of lever-type connector.Fig. 8 is the partial cross section figure of the lever-type connector of routine.Fig. 9 is another partial cross section figure of lever-type connector.

Shown in Fig. 8 and 9, lever-type connector comprises the box connector shell 60 that is used to hold electric wire 4 ends, the bar 80 that the top base plate that is connected in connector shell 60 is used to guide and draw the hemisphere cap 70 of electric wire 4 and is connected in connector shell 60 and connector shell 60 and cap 70 are clipped in the middle.Many wires 4 protrude upward and are subjected to the horizontal guide of hemisphere cap 70 and be introduced to cap 70 outsides from cavity 63.

Connector shell 60 all has axle 66 so that bar 80 pivots in its each side.Bar 80 has bullport 81, rotating hole 86, in the recess 82 and the bonding part 88 of its each side.Bar 80 can be around axle 66 rotations of connector shell 60.

The matching connector (not shown) cooperates with it from the downside of connector shell 60.When bar 80 rotation, be arranged in the bullport 81 of each the guide finger (not shown) insertion rod 80 on the matching connector and upwards traction so that matching connector cooperate with connector shell 60.After realizing cooperation, rod lock part 74 is locked in the bonding part 88 of bar 80 as shown in Figure 8.

When two connectors are unlocked each other, carry out and top described opposite operation.For unlocking, at first depress and make the bonding part 88 of bar 80 to move towards the B1 direction shown in Fig. 9 rod lock part 74, thereby rod lock part 74 is unlocked along B2 and B3 direction.At the connector shown in Fig. 8 and Fig. 9 only is the example that the feature of the connector with cap is described, rather than disclosed connector among the patent JP2003-272768A.

In order to make bonding part 88, need have enough clearance C L ' so that the moving downward of the rod lock part 74 shown in the acceptance pattern 9 towards direction B2 and B3 rotation.

Need recently small-sized connector and cap 70, electric wire 4 occupies bigger space and connector can not have enough spaces with maintenance clearance C L ' in connector like this.

When enough clearance C L ' can not be provided, rod lock part 74 will hinder electric wire 4, and like this rod lock part 74 fully being pressed towards direction B1 is the comparison difficulty.Therefore, with bonding part 88 towards direction B2 and B3 move also be the comparison difficulty and unlocking of connector become impossible.

Summary of the invention

The invention provides a kind of release of the bar that is used to guarantee to have the rod lock part and can further stop cap and the lever-type connector of connector shell disengaging.

According to a first aspect of the invention, lever-type connector comprises: the connector shell that is used to hold wire end; Be arranged on the prolongation wall on the top base plate of connector shell; Prolonging the wall inner slide and be connected in the cap of connector shell, described cap guiding is also drawn described electric wire; Rotatably be connected in the bar of connector shell; Be arranged on the rod lock part that being used on a part of cap engages with a part of bar, described lock part is flexible and is the arm shape; Being arranged on being used on the cap is locked in locking projection on the connector shell with cap; Be arranged on the bonding part that being used on the connector shell engages with locking projection, wherein, described cap have the rear surface that is arranged on cap and outstanding from the rear surface of cap, near the electric wire clamping ribs of electric wire, so that stop electric wire to hinder the gap that allows rod lock partly to move downward.

Preferably, described electric wire clamping ribs is arranged near the free end and stiff end of rod lock part.

Preferably, described cap has on the sidewall that is arranged on cap and towards the retention tab that prolongs wall, and it is used to stop the sidewall of the cap in electric wire exit to expand outwardly and stops locking projection and bonding part to unlock each other.

Preferably, described retention tab is set to than the more close electric wire outlet of locking projection and bonding part.

Preferably, retention tab has along the electric wire Way out to the prolongation wall of the connector shell upwardly extending inclined-plane that tilts.

Preferably, described cap has the anchor clamps patchhole, and this anchor clamps patchhole forms by the bottom of cutting away cap, and is arranged between retention tab and the locking projection, and described anchor clamps patchhole allows to insert anchor clamps so that cap is removed from connector shell.

Description of drawings

Fig. 1 is the perspective view of the embodiment of explanation lever-type connector of the present invention;

Fig. 2 is the perspective view of the connector shell in the key diagram 1;

Fig. 3 is the perspective view of the cap the Fig. 1 when tiltedly looking down;

Fig. 4 is the end view of the cap among Fig. 1;

Fig. 5 A is the rearview of the cap among Fig. 1;

Fig. 5 B is the sectional view of the 5B-5B line in Fig. 1;

Fig. 5 C is the local expanded view of the Y part among Fig. 5 B;

Fig. 6 is the partial cross section figure of the embodiment of lever-type connector;

Fig. 7 is another partial cross section figure of the lever-type connector among Fig. 6;

Fig. 8 is the partial cross section figure of the lever-type connector of routine;

Fig. 9 is another partial cross section figure of the lever-type connector among Fig. 8.

Embodiment

By with reference to the accompanying drawings embodiments of the present invention being described.

Fig. 1 has illustrated an embodiment of lever-type connector of the present invention.This lever-type connector comprises that 10, one of a connector shell that hold wire end is connected in connector shell 10 and guiding and draws the cap 20 of described electric wire and rotatably be connected in the bar 30 of connector shell 10.Connector shell 10, cap 20 and bar 30 are formed from a resin, for example PBT (polybutylene terephthalate).

In Fig. 1, connector shell 10 covers at A20 direction partes tegmentalis 20.A matching connector (not shown) cooperates with connector shell 10 in the A10 direction.When matching connector cooperated with connector shell 10, the pilot pin (not shown) of matching connector cooperated with bullport 31 and it moves up when the A30 direction is rotated when bar 30, and these two connectors lump together.Lock operation between bar 30 and the cap 20 will describe by reference accompanying drawing 6 and accompanying drawing 7 subsequently.

As shown in Fig. 1 and Fig. 2, connector shell 10 is a box-shaped.A plurality ofly hold the great circle cylindricality of wire end and the

cavity

13 and 14 of small circular is arranged on the top base plate of connector shell 10.Each big and

little cavity

13 and 14 is drawn large scale and undersized electric wire respectively.Prolong wall 19 and toward each other along the edge that vertically is arranged on the top base plate of connector shell 10.Prolonging wall 19 is extensions of the sidewall of connector shell 10.Prolonging formation slit 12 on the wall 19.

Connector shell 10 has a plurality of bonding parts 11 that engage with the locking projection 21 of cap 20, and it is arranged on and prolongs wall 19 inboards.Bonding part 11 outside-ins hold locking projection 21.The shape of bonding part 11 is corresponding with the shape and the quantity of locking projection 21 with quantity.

Two sidewalls of connector shell 10 are as the connection surface 15 of bar 30.Fig. 1 and 2 has only illustrated a side.The axle 16 that is used for bar 30 is arranged on each with gathering sill 18 and is connected surface 15.

Shown in Fig. 1 and Fig. 3-5, cap 20 is for cheese and have electric wire outlet 29 and lower openings.Cap 20 is by placing the outer surface of cap 20 and being connected with connector shell 10 towards the inner surface ground that prolongs wall 19.After cap 20 is fixed in the top base plate, electric wire is drawn by electric wire outlet 29.

As shown in Fig. 3 and Fig. 5, cap 20 has two pairs of locking projections 21 that are used for fixing connector shell 10 on inwall.Each to locking projection 21 toward each other and have pawl so that enter from the outside and engage with bonding part 11.

Two sidewalls of cap 20 are provided with a plurality of ribs 22 and these ribs 22 and extend along the closure A20 of cap 20.Retention tab 25 is arranged on two sidewalls of cap 20 and towards prolonging wall 19, thereby the sidewall that prevents cap 20 expands outwardly and prevent that locking projection 21 and bonding part 11 from unlocking each other.As shown in Fig. 1,3 and 5, retention tab 25 has at electric wire and exports 29 directions to the upwardly extending obliquely inclined-plane of the prolongation wall 19 of connector shell 10.Retention tab 25 exports 29 sides at electric wire and has the top.Retention tab 25 exports 29 ground than locking projection 21 and bonding part 11 more close electric wires and is provided with.

Fig. 5 B is the sectional view of the line 5B-5B in Fig. 1, and Fig. 5 C is the partial enlarged drawing of Y part among Fig. 5 B.

When with electric wire 4 towards the taking apart direction when pulling of cap 20, electric wire outlet 29 is tended to stretch along the direction of the B25 among Fig. 5 C.Therefore, retention tab 25 is near prolonging wall 19, thereby cap 20 can further not stretch and keep engaging of locking projection 21 and bonding part 11.

Because retention tab 25 is than the 11 more close electric wires outlets 29 of locking projection 21 and bonding part, thereby so the bottom of cap 20 can not stretch cap 20 and be not easy to separate with connector shell 10.

Thereby prolonging wall 19 has curvature R and exports directions X among 29 directions or Fig. 5 C progressively near retention tab 25 towards electric wire.Retention tab 25 and the distance that prolongs between the wall 19 become shorter so that further effectively stop the stretching, extension of cap 20.

Do not consider

bar

30,25 pairs of retention tab keep cap 20 very effective.

As shown in Fig. 1,3,4 and 5, anchor clamps patchhole 26 forms by the bottom of excision cap 20, and is arranged between retention tab 25 and the locking projection 21 so that insert anchor clamps and be used for cap 20 is separated from connector shell 10.When anchor clamps were inserted in the anchor clamps patchhole 26, because retention tab 25 can not be born very big power, so cap 20 was easy to separate from connector shell 10.

As shown in Fig. 1,3,4 and 5, rod lock part 24 is arranged on the end face of cap 20 so that be locked on the cap bonding part 38 and it is the flexible arm shape.Side member 23 is arranged to rod lock part 24 is sandwiched middle, and shown in Fig. 5 A, thereby U-shaped slit 27 is arranged to keep its flexibility around the part of rod lock part 24.Shown in Fig. 5 A, ribs 28 is arranged on the rear surface of rod lock part 24.Cap 20 has a curvature portion so that bent wire lenitively at the opposite side of electric wire outlet 29.

As shown in Figure 6, electric

wire clamping ribs

29L and 29L ' are arranged near the stiff end and free end of rod lock part 24, lay respectively at the rear surface of cap 20, and outstanding downwards from the bottom surface 24a of rod lock part 24.Electric

wire clamping ribs

29L and 29L ' project near electric wire 4 and along electric wire 4 horizontal expansions.Electric

wire clamping ribs

29L and 29L ' have enough height so that stop electric wire 4 to hinder clearance C L, and it allows rod lock part 24 to move down.Therefore,, also can guarantee clearance C L, can guarantee that like this rod lock part 24 is disengaged locking even electric wire 4 has occupied the very large space in the cap 20.

Bar 30 connects into the connection surface 15 of clamping connector shell 10.Bar 30 has the rotating hole 36 that is positioned at its center, bullport 31 and the recess 32 that centers on rotating hole 36 on each connection surface 15.Rotating hole 36 and axle 16 cooperate so that bar 30 can be around axle 16 rotations.Bar 30 has cap bonding part 38 to engage with the rod lock part 24 of cap 20.

Fig. 6 and 7 has illustrated how to engage and open bar 30.Fig. 6 is the partial cross section figure of lever-type connector embodiment.Fig. 7 is another partial cross section figure of lever-type connector.

When cap 20 cooperated with connector shell 10, cap 20 slided and near the top base plate of connector shell 10 towards the A20 direction among Fig. 1 at the inner surface that prolongs wall 19.The locking projection 21 of cap 20 engages with the bonding part 11 of connector shell 10.The A10 direction of matching connector (not shown) from Fig. 1 cooperates with the bottom of connector shell 10.Then, the guide finger (not shown) of matching connector is inserted in the bullport 31.When bar 30 rotated to A30 direction among Fig. 1, matching connector cooperated with connector shell 10 thereby guide finger moves up.Rod lock part 24 be locked in bar 30 cap bonding part 38 so that connector shell 10 and matching connector be combined together.

For unlocking, the rod lock part 24 among Fig. 7 is depressed so that remove the joint of cap bonding part 38 to the A1 direction.When the A3 direction of bar 30 in Fig. 7 rotated, connector shell 10 broke away from matching connector.As described above, owing between the lower surface of rod lock part 24 and electric wire 4, can guarantee clearance C L, so but presses lever lock part 24 and can not hinder electric wire and guarantee bar 30 disengagings by electric

wire clamping ribs

29L and 29L '.

According to embodiments of the invention, electric wire clamping ribs 29L and the 29L ' outstanding from the rear surface of cap 20 have kept the clearance C L that allows rod lock part 24 to move downward, and rod lock part 24 and cap bonding part 38 can guarantee to break away from each other and can not hinder and occupy the very electric wire 4 of large space of connector like this.Therefore, connector can become littler by the electric wire that keeps similar number.

Claims

1. lever-type connector comprises:

Be used to hold the connector shell of wire end;

Be arranged on the prolongation wall on the top base plate of connector shell;

Prolonging the wall inner slide and be connected in the cap of connector shell, described cap guiding is also drawn described electric wire;

Rotatably be connected in the bar of connector shell;

Be arranged on the rod lock part that being used on a part of cap engages with a part of bar, described lock part is flexible and is the arm shape;

Being arranged on being used on the cap is locked in locking projection on the connector shell with cap; With

Be arranged on the bonding part that being used on the connector shell engages with locking projection,

Wherein, described cap have the rear surface that is arranged on cap and outstanding from the rear surface of cap, near the electric wire clamping ribs of electric wire, so that stop electric wire to hinder the gap that allows rod lock partly to move downward.

2. lever-type connector as claimed in claim 1 is characterized in that, described electric wire clamping ribs is arranged near the free end and stiff end of rod lock part.

3. lever-type connector as claimed in claim 1, it is characterized in that, described cap has on the sidewall that is arranged on cap and towards the retention tab that prolongs wall, and it is used to stop the sidewall of the cap in electric wire exit to expand outwardly and stops locking projection and bonding part to unlock each other.

4. lever-type connector as claimed in claim 3 is characterized in that, described retention tab is set to than the more close electric wire outlet of locking projection and bonding part.

5. lever-type connector as claimed in claim 4 is characterized in that, retention tab has along the electric wire Way out to the prolongation wall of the connector shell upwardly extending inclined-plane that tilts.

6. lever-type connector as claimed in claim 5, it is characterized in that, described cap has the anchor clamps patchhole, this anchor clamps patchhole forms by the bottom of cutting away cap, and be arranged between retention tab and the locking projection, described anchor clamps patchhole allows to insert anchor clamps so that cap is removed from connector shell.