JP2010123488A - Double locking connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a double locking connector by which the strength of temporary locking and final locking of a retainer can be increased and the attaching workability of the retainer is improved while being capable of narrowing a pitch of a contact housing cavity. <P>SOLUTION: At a housing 10 of the double locking connector 1, a first space 41 between contact housing cavities 15 in the upper and lower two rows, and a retainer attaching hole 40 communicated with the first space 41, having a second space 42 to cross the contact housing cavities 15 in the upper and lower two rows and opened in the side face of the housing 10 are installed. The retainer 30 is equipped with a locking arm 35 having a locking protrusion 36, and a temporary locking arm 37 having a temporary locking protrusion 38. Bending directions of this locking arm 35 and the temporary locking arm 37 are different from each other by 90°. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a side-retainer type double locking connector in which a retainer for locking a contact is inserted from a side surface of a connector housing.

  As a conventional side-retainer type double locking connector, for example, one shown in FIGS. 15 to 18 is known (see Patent Document 1). FIG. 15 is a cross-sectional view of a conventional double locking connector with a part thereof cut, showing a state in which the retainer is in a temporary locking position. FIG. 16 is a cross-sectional view of a part of a conventional double locking connector, showing a state in which the retainer is in the full locking position. FIG. 17 is a rear view of a housing used for the double locking connector shown in FIGS. 15 and 16. FIG. 18 is a rear view of a retainer used in the double locking connector shown in FIGS. 15 and 16.

The double locking connector 101 shown in FIGS. 15 and 16 includes a housing 110, a plurality of contacts 120 attached to the housing 110, and a retainer 130 for secondary locking of these contacts 120.
The housing 110 is formed in a substantially box shape by molding an insulating resin, and a plurality of contact receiving cavities 111 are arranged in the left-right width direction (left-right direction in FIG. 15) at the rear part (lower part in FIG. 15). Are provided at a predetermined pitch in two vertical rows. Each contact accommodating cavity 111 is provided with a housing lance 112 for primarily locking the contact 120. A retainer mounting recess 113 is formed on the rear end side of the side surface of the housing 110. As shown in FIG. 17, a pair of retainer mounting holes 114 are provided so as to intersect the upper and lower contact receiving cavities 111 upward from the retainer mounting recess 113. Here, on the upper surface of the lower retainer mounting hole 114, as shown in FIG. 17, a temporary locking projection 115 is provided on the opening side (mounting recess 113 side), and a main locking projection 116 is formed on the back side. Is provided.

  Further, as shown in FIG. 18, the retainer 130 includes a pair of leg portions 131 and a connecting portion 132 that connects end portions of the leg portions 131. The pair of leg portions 131 of the retainer 130 is inserted into the upper and lower retainer mounting holes 114. On the upper surface of the leg 131 inserted into the retainer mounting hole 114 on the lower side of the pair of legs 131, a locking projection 133 is formed to project. The retainer 130 is locked at the temporary locking position shown in FIG. 15 by the locking protrusion 133 being locked to the temporary locking protrusion 115, and the locking protrusion 133 is locked to the main locking protrusion 116. Thus, the main locking position shown in FIG. 16 is locked. As shown in FIG. 18, a plurality of secondary locking protrusions 134 are provided at the same pitch as the contact accommodating cavities 111 on the lower surfaces of the pair of leg portions 131 of the retainer 130.

Each contact 120 is inserted into each contact receiving cavity 111 from the rear of the housing 110 when the retainer 130 is in the temporary locking position shown in FIG. At this time, each contact 120 is primarily locked by the housing lance 112.
When the retainer 130 is further pushed into the final locking position shown in FIG. 16, the secondary locking protrusion 134 of the retainer 130 is positioned on the rear side of the stabilizer portion of each contact 120, and each contact 120 is locked to the secondary locking position. It is supposed to be. Thereby, the assembly of the double locking connector 101 is completed.
JP 2001-185272 A

The side-retainer type double locking connector 101 shown in FIGS. 15 to 18 is generally used as an electrical connection part in an automobile, and in this field, in recent years, there has been a demand for a narrow pitch of contact receiving cavities. Is growing.
In the double locking connector 101 shown in FIGS. 15 to 18, the retainer 130 is accommodated in the housing 110, and one leg portion 131 is inserted between the two upper and lower rows of contact accommodating cavities 111 to temporarily fix the protrusion. 115 and the main locking projections 116 are provided between the contact receiving cavities 111 in two upper and lower rows, so that the pitch of the contact receiving cavities 111 is not greatly hindered.

  However, in the double locking connector 101, the locking protrusion 133 provided on the retainer 130 is used for both temporary locking and main locking. The locking protrusion 133 is locked to the temporary locking protrusion 115 at the time of temporary locking. However, the locking protrusion 133 may be deformed by the temporary locking protrusion 115 at that time. When used for locking, the actual locking strength may be weakened, and the necessary final locking strength may not be obtained.

  When the retainer 130 is temporarily locked, the pair of leg portions 131 of the retainer 130 are inserted into the upper and lower retainer mounting holes 114, and the locking protrusions 133 provided on the lower leg portion 131 are inserted into the temporary locking protrusions. It is locked so as to get over 115. At this time, since the lower leg 131 is not inserted into the lower retainer mounting hole 114 so that it can be easily bent and deformed, the locking projection 133 can easily get over the temporary locking projection 115. The locking projection 133 and the temporary locking projection 115 are forcibly deformed to perform locking. For this reason, it is difficult to mount the retainer 130.

  Accordingly, the present invention has been made in view of the above-mentioned problems, and its purpose is to increase the strength of the retainer temporary lock and the main lock while enabling the pitch of the contact receiving cavities to be narrowed. Another object of the present invention is to provide a double locking connector that can improve the workability of mounting a retainer.

  In order to achieve the above object, a double locking connector according to claim 1 of the present invention includes a plurality of contacts, each of which accommodates each of the plurality of contacts, and two upper and lower rows along the left-right width direction. A housing having a plurality of contact receiving cavities arranged in a shape, each of the contacts and / or primary locking means provided in each of the contact receiving cavities, and the plurality of contacts mounted on the housing In the double locking connector provided with a retainer as a secondary locking means, the housing has a first space between the upper and lower two rows of contact receiving cavities and the upper and lower rows connected to the first space. A retainer mounting hole having a second space intersecting with the contact receiving cavity and opening in a side surface of the housing; A first elastically deformable first inserted into the retainer mounting hole from the opening on the side surface of the housing and having a locking projection locked to one of the upper and lower walls defining the first space. A locking arm; and an elastically deformable second locking arm having a locking projection locked to a wall on the opposite side of the wall defining the first space to the side on which the second space is located. One of the first locking arm and the second locking arm is a final locking arm and the other is a temporary locking arm, and the bending direction of the main locking arm and the temporary locking arm is 90. ° It is characterized by being different.

  Further, the double locking connector according to claim 2 of the present invention is the double locking connector according to claim 1, wherein the upper and lower two rows of contact receiving cavities are arranged in a staggered manner along the left-right width direction. It is characterized by being.

  According to the double locking connector of the present invention, the housing includes a first space between the upper and lower rows of contact receiving cavities and the upper and lower rows of contact receiving cavities communicating with the first space. A retainer mounting hole having a second space that intersects and opening on the side surface of the housing is provided, and the retainer is inserted into the retainer mounting hole from the opening on the side surface of the housing. Since it can be arranged, the pitch of the contact receiving cavities can be reduced. The retainer includes a first locking arm having a locking projection locked to one of the upper and lower walls defining the first space, and the second space among the walls defining the first space. And a second locking arm having a locking projection locked to the opposite wall, and one of the first locking arm and the second locking arm is a main locking arm, and Since the other is a temporary locking arm, a temporary locking arm and a temporary locking arm are provided separately, and the respective locking arms are dedicated to the main locking and the temporary locking, so that the retainer can be temporarily locked and locked. The strength of the main locking can be increased. Furthermore, since the temporary locking arm and the main locking arm can be elastically deformed, the locking arms are easily deformed during the temporary locking and the main locking, thereby facilitating the mounting operation of the retainer. Can do. Further, since the bending direction of the main locking arm and the temporary locking arm is different by 90 °, the main locking arm and the temporary locking arm can be bent in the first space of the retainer mounting hole, and the common space Two permanent locking arms and a temporary locking arm can be used in this, and a compact double locking connector can be obtained.

  Moreover, according to the double locking connector according to claim 2 of the present invention, in the double locking connector according to claim 1, the upper and lower two rows of contact receiving cavities are arranged along the left-right width direction. Since the staggered arrangement is adopted, the arrangement pitch of the contacts accommodated in the contact accommodating cavity in the left-right width direction can be further narrowed.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1A and 1B show an embodiment of a double locking connector according to the present invention, wherein FIG. 1A is a perspective view seen from the front obliquely upper side, and FIG. 1B is a perspective view seen from the rear obliquely upper side. 2A and 2B show a state in which the retainer is separated from the double locking connector, where FIG. 2A is a perspective view seen from the obliquely upward rear side, and FIG. 2B is a perspective view seen from the obliquely downward front side. 3A and 3B show the double locking connector when the retainer is in the temporary locking position. FIG. 3A is a front view, FIG. 3B is a left side view, and FIG. FIG. 4 is a cross-sectional view taken along line 4-4 of FIG. FIG. 5 is a cross-sectional view taken along line 5-5 in FIG. FIG. 6 is a cross-sectional view taken along line 6-6 of FIG. FIG. 7 is a cross-sectional view taken along line 7-7 in FIG. 8A and 8B show the double locking connector when the retainer is in the full locking position, where FIG. 8A is a left side view and FIG. 8B is a rear view. FIG. 9 is a cross-sectional view taken along line 9-9 of FIG. FIG. 10 is a cross-sectional view taken along line 10-10 in FIG. FIG. 11 is a cross-sectional view taken along line 11-11 in FIG. 12 is a cross-sectional view taken along line 12-12 of FIG.

1 to 12, the double locking connector 1 includes a housing 10, a plurality of contacts (see FIGS. 7 and 12) 20 attached to the housing 10, and a retainer 30.
As shown in FIGS. 13 and 14, the double locking connector 1 is connected to a mating connector 50 such as a fuel cell. FIG. 13 is a cross-sectional view showing a state in the middle of connecting the double locking connector to the mating connector. FIG. 14 is a cross-sectional view of a state in which the double locking connector has been connected to the mating connector. 13 and 14, the mating connector 50 is provided with a connector support 51 for supporting the double locking connector 1. The connector support portion 51 is formed in a locking portion locking recess 53 formed in the first standing portion 52 rising from one end side of the mating connection body 50 and a second standing portion 55 rising from the other end side of the mating connection body 50. And a concave portion 56 for engaging the convex portion.

  Here, as shown in FIG. 1, the housing 10 is provided with a substantially rectangular parallelepiped lower housing part 11 and a substantially rectangular parallelepiped upper housing part 13 positioned above the lower housing part 11. The lower housing portion 11 and the upper housing portion 13 are integrally formed by molding an insulating resin.

  Further, in the rear part of the lower housing part 11 (left part in FIG. 3B), as shown in FIGS. 1A and 3C, the left and right width direction of the upper housing part 11 (FIG. 3). The 1st protrusion part 12 which protrudes from the one end part of the (left-right direction in (C)) is provided. As shown in FIG. 1A, the first projecting portion 12 extends from the rear end surface of the lower housing portion 11 forward to a substantially central portion in the front-rear direction. Further, as shown in FIGS. 1 (B) and 3 (C), the upper housing portion 13 has an end portion on the opposite side to the end portion where the first projecting portion 12 in the left-right width direction of the lower housing portion 11 is located. A projecting second projecting portion 14 is provided. As shown in FIG. 1B, the second projecting portion 14 extends from the rear end surface of the upper housing portion 13 to the front end surface of the upper housing portion 13 toward the front. The second projecting portion 14 is continuous with the projecting plate portion 11 a in front of the side surface of the lower housing portion 11. For this reason, on the side surface of the lower housing portion 11, the second protrusion 14 and the protrusion plate portion 11a define a recess 11b that is recessed relative to the second protrusion 14 and the protrusion plate portion 11a. The recess 11b is set to a size that can receive the first protrusion 12 of the adjacent housing 10 with a gap.

  Each of the lower housing portion 11 and the upper housing portion 13 is provided with a plurality of contact accommodating cavities 15 for accommodating the respective contacts 20, as shown in FIGS. 1B, 3C, and 12. Thus, the upper and lower rows of contact accommodating cavities 15 are formed. The upper and lower two rows of contact accommodating cavities 15 are staggered along the horizontal width direction of the housing 10.

  In this way, by arranging the upper and lower two rows of contact accommodating cavities 15 in a staggered manner in the left-right width direction, the arrangement pitch in the left-right width direction of the contacts 20 accommodated in the contact accommodating cavities 15 is reduced. Can do. The lower housing part 11 is provided with a first projecting part 12 projecting from one end of the upper housing part 13 in the left-right width direction. The upper housing part 13 has a first projecting part 12 in the left-right width direction of the lower housing part 11. The 2nd protrusion part 14 which protrudes from the edge part on the opposite side to a certain edge part is provided. Thereby, the two rows of contact receiving cavities 15 arranged in a staggered manner in the left-right width direction can be provided in the housing 10 without providing a useless space.

  Further, at the lower end portion of the rear end surface of the lower housing portion 11, a convex portion that engages with the convex portion engaging concave portion 56 of the connector support portion 51 of the mating connector (see FIGS. 13 and 14) and serves as a rotating shaft. 18 is formed to protrude rearward. As shown in FIG. 1B, the convex portion 18 extends over the entire region in the left-right width direction of the lower housing portion 11. On the other hand, the lower end portion of the front end surface of the lower housing portion 11 is provided with a lock portion 16 extending forward from the lower end portion and extending upward via a curved portion, as shown in FIG. Yes. The lock portion 16 is provided with a lock protrusion 17 that is locked to the lock portion locking recess 53 of the connector support portion 51 of the mating connector 50. As shown in FIG. 1A, the lateral width of the lock portion 16 is set smaller than the lateral width of the lower housing portion 11. The lateral width of the lock protrusion 17 is substantially the same as the lateral width of the lock portion 16. A pair of protective walls 16 a and 16 b extending so as to cover both sides of the lock portion 16 are provided on both sides of the front end surface of the lower housing portion 11. These protective walls 16a and 16b protect the lock portion 16 from the outside.

  Further, the lower housing portion 11 and the upper housing portion 13 have a plurality of slits 19 for receiving the plate-like contact members 57 of the mating connector 50 as shown in FIGS. 2 (B), 13 and 14. It is formed upward from the lower surface of the housing part 11. As shown in FIG. 12, one of the adjacent slits 19 is formed so as to penetrate the contact housing cavity 15 of the lower housing part 11 upward from the lower surface of the lower housing part 11. The other slit 19 among the adjacent slits 19 is formed so as to penetrate the contact housing cavity 15 of the upper housing part 13 upward from the lower surface of the lower housing part 11.

  As shown in FIG. 2, a retainer mounting hole 40 in which the retainer 30 is mounted is formed in the lower housing portion 11 and the upper housing portion 13 that constitute the housing 10. As shown in FIGS. 2 to 12, the retainer mounting hole 40 communicates with the first space 41 and the first space 41 between the upper and lower rows of contact accommodating cavities 15 and intersects the upper and lower rows of contact accommodating cavities 15. A second space 42 is provided. Further, the retainer mounting hole 40 is opened on the left side surface of the housing 10 as shown in FIG. As shown in FIGS. 2, 3, 4 and 5, the first space 41 is elongated in the front-rear direction of the housing 20 and is opposed to the upper wall 41a and the upper wall 41a, and the rear wall 41c. The front side communicates with the second space 42. As shown in FIGS. 2, 3 and 12, the second space 42 is elongated in the vertical direction and communicates with the contact accommodating cavity 15 at both upper and lower ends.

  Here, as shown in FIGS. 5 and 10, a main locking projection 44 for locking the retainer 30 is provided on the upper wall 41 a of the walls defining the first space 41. . Further, as shown in FIG. 4, a through hole 45 penetrating toward the rear end surface of the housing 10 is formed in the rear side wall 41 c of the walls defining the first space 41. As shown in FIGS. 4 and 9, the corner edge of the rear side wall 41 c where the first space 41 and the through hole 45 intersect with each other is a temporarily locking corner edge 46 for temporarily locking the retainer 30.

  Next, as shown in FIGS. 7 and 12, each contact 20 is a contact where a wire connecting portion 21 for crimping and connecting the electric wire W and a contact member 57 provided on the front side of the wire connecting portion 21 are in contact. Part 22. Each contact 20 is formed by punching and bending a metal plate. When the contacts 20 are accommodated in the contact accommodating cavities 15 on the both side walls on the front side of the wire connection portion 21, a pair of primary contacts for locking the contacts 20 to the both side walls of the contact accommodating cavities 15. A primary locking projection (primary locking means) 24 is provided. Further, the rear end edge of the electric wire connecting portion 21 is a stabilizer portion 23 for secondary locking. Moreover, the contact part 22 is comprised by a pair of elastic contact plate which can receive the contact member 57 from the lower side.

  Furthermore, the retainer 30 is inserted into the retainer mounting hole 40 through the opening on the left side surface of the housing 10 and mounted on the housing 10. The retainer 30 is locked to the housing 10 at both the temporary locking position shown in FIGS. 3 to 7 and the final locking position shown in FIGS. 8 to 12. The retainer 30 functions as a secondary locking means for the contact 20 housed in the contact housing cavity 15 of the housing 10. As shown in FIG. 2, the retainer 30 includes a plate-like base portion 31. As shown in FIGS. 4 and 9, the base 31 includes a front-rear extending part 31a extending in the front-rear direction and a right-extending part 31b extending rightward from the front end of the front-rear extending part 31a. It is formed in an L shape. As shown in FIG. 2 (B), the retainer 30 has a plurality of lower secondary locking projections 33 formed so as to protrude downward (upward in FIG. 2 (B)) from the right extending portion 31b of the base 31. And a standing wall 32 that rises upward (downward in FIG. 2B) from the right extending portion 31b, and a plurality of upper secondary locking protrusions 34 that protrude upward from the standing wall 32. ing. The lower secondary locking projections 33 are arranged at the same pitch as the lower contact receiving cavity 15, and when the retainer 30 is in the main locking position, as shown in FIG. The accommodated contact 20 is secondarily locked. The upper secondary locking members 34 are arranged at the same pitch as the upper contact receiving cavities 15 and are stored in the upper contact receiving cavities 15 as shown in FIG. 12 when the retainer 30 is in the main locking position. The contact 20 is secondarily locked. The lower secondary locking projection 33 and the upper secondary locking projection 34 are staggered along the direction in which the right extending portion 31b extends.

  The retainer 30 includes a main locking arm 35 and a temporary locking arm 37 as shown in FIGS. 2, 4, 5, 9, and 10. The main locking arm 35 extends to the right from a substantially central portion in the front-rear direction of the front-rear extending portion 31a of the base 31 and is formed to be elastically deformable. A main locking projection 36 that is locked to a main locking projection 44 provided on the upper wall 41 a of the first space 41 is provided at the tip of the main locking arm 35. The temporary locking arm 37 extends to the right from the rear edge of the front and rear extending portion 31a of the base 31 and is formed to be elastically deformable. A temporary locking projection 38 that is locked to the temporary locking corner edge 46 of the rear side wall 41 c of the first space 41 is provided at the tip of the temporary locking arm 37. The direction in which the main locking arm 35 bends is set to be the vertical direction. On the other hand, the bending direction of the temporary locking arm 37 is set to be the front-rear direction. Therefore, the bending directions of the main locking arm 35 and the temporary locking arm 37 are different by 90 °. The retainer 30 is formed by molding an insulating resin.

Next, a method for assembling the double locking connector 1 will be described.
First, the retainer 30 is inserted into the retainer mounting hole 40 of the housing 10 from the opening on the left side surface of the housing 10, and the retainer 30 is positioned at the temporary locking position shown in FIGS. At this time, the left and right extending portions 31 b of the base portion 31 of the retainer 30, the standing wall 32, the lower secondary locking projection 33, and the upper secondary locking projection 34 are within the second space 42 of the retainer mounting hole 40. Inserted into. Further, the front-rear extending portion 31 a, the main locking arm 35, and the temporary locking arm 37 of the base portion 31 of the retainer 30 are inserted into the first space 41. And the temporary latching protrusion 38 is latched by the corner edge 46 for temporary latching, as shown in FIG. The temporary locking operation of the temporary locking protrusion 38 will be described. At the initial insertion of the retainer 30, the temporary locking protrusion 38 first comes into contact with the left side surface of the housing 10. As the insertion of the retainer 30 proceeds, the temporary locking protrusions 38 are bent along the rear side wall 41c of the first space 41 and the temporary locking arms 37 bend forward. When the insertion of the retainer 30 further proceeds, the temporary locking protrusion 38 protrudes into the through hole 45 and the temporary locking arm 37 is restored to the original state, and the temporary locking protrusion 38 is moved to the temporary locking corner edge 46. It is locked. At this time, as shown in FIG. 5, the main locking projection 36 advances in the first space 41, but stops moving when it comes into contact with the main locking projection 44.

  Next, when the retainer 30 is in the temporary locking position, each contact 20 connected to the electric wire W is inserted into each contact receiving cavity 15 from the rear side of the housing 10. At this time, as shown in FIG. 6, the lower secondary locking portion 33 and the upper secondary locking portion 34 of the retainer 30 are not positioned to close the contact receiving cavities 15, so that each contact 20 is smooth. Into each contact receiving cavity 15. Then, a pair of primary locking projections 24 provided on each contact 20 is press-fitted into both side walls of the contact receiving cavity 15, and each contact 20 is primarily locked to the housing 10.

  Finally, the retainer 30 is pushed in so as to be positioned at the final locking position shown in FIGS. At this time, the final locking projection 36 is locked to the final locking projection 44 as shown in FIG. The main locking operation of the main locking projection 36 will be described. When the retainer 30 is in the temporary locking position, the main locking projection 36 is in contact with the main locking projection 44. The main locking arm 35 bends downward while the locking projection 36 is along the main locking projection 44. When the retainer 30 is further inserted, the main locking projection 36 gets over the main locking projection 44 and the main locking arm 35 is restored to the original state. It is locked to.

  When the retainer 30 is positioned at the main locking position, the lower secondary locking portion 33 and the upper secondary locking portion 34 of the retainer 30 are positioned at positions that block the contact receiving cavities 15 as shown in FIG. . As a result, as shown in FIG. 12, the lower secondary locking portion 33 and the upper secondary locking portion 34 of the retainer 30 are respectively connected to the contacts 20 stored in the upper and lower rows of contact receiving cavities 15. The rear side of the stabilizer portion 23 is secondarily locked. Thereby, the double locking connector 1 is completed.

  According to the double locking connector 1 according to the present embodiment, the housing 10 is connected to the first space 41 between the upper and lower rows of contact receiving cavities 15, and the upper and lower rows of contact receiving cavities 15. A retainer mounting hole 40 that has a second space 42 that intersects the left and right sides of the housing 10 is provided. The retainer 30 is inserted into the retainer mounting hole 40 through the opening on the left side surface of the housing 10. For this reason, since the retainer 30 can be disposed between the upper and lower rows of the contact accommodating cavities 15, the pitch of the contact accommodating cavities 15 can be reduced.

  The retainer 30 includes a main locking arm 35 having a main locking projection 36 that is locked to a main locking projection 44 provided on the upper wall 41a of the wall that defines the first space 41, and a first locking arm 35. Temporary engagement member having temporary engagement protrusion 38 that is engaged with temporary engagement corner edge 46 of a wall (rear side wall) 41c on the opposite side to the side where second space 42 is provided among the walls that define one space 41. A stop arm 37 is provided. For this reason, the main locking arm 35 and the temporary locking arm 36 are provided separately, and the respective locking arms are dedicated to the main locking and the temporary locking, so that the retainer 30 can be temporarily locked and temporarily locked. Strength can be increased.

Further, since the main locking arm 35 and the temporary locking arm 37 can be elastically deformed, the locking arms are easily deformed during the temporary locking and main locking during the temporary locking and main locking. Therefore, the mounting work of the retainer 30 can be facilitated.
Further, since the bending directions of the main locking arm 35 and the temporary locking arm 37 are different by 90 °, the main locking arm 35 and the temporary locking arm 37 bend in the first space 41 of the retainer mounting hole 40. Thus, the two main locking arms 35 and the temporary locking arm 37 can be used in a common space, and the double locking connector 1 having a compact shape can be obtained.

And the double latching connector 1 is connected to the other party connection body 50, as shown in FIG.13 and FIG.14.
In this connection, first, as shown in FIG. 13, the double locking connector 1 is inclined with the rear end side down, and the contact member 57 of the mating connector 50 is inserted into the slit 19 while the housing 10 The protrusion 18 provided at the rear end is engaged with the protrusion engaging recess 56 of the mating connector 50.

Next, as shown in FIG. 14, the double locking connector 1 is rotated with the convex portion 18 serving as a rotation axis approximately at the center and the front end side directed downward, and the lock protrusion 17 provided on the lock portion 16 is connected to the other end. The body 50 is inserted into the locking portion locking recess 53 from above the first standing portion 52 and locked. Thereby, the double locking connector 1 is connected to the mating connector 50.
As mentioned above, although embodiment of this invention has been described, this invention is not limited to this, A various change and improvement can be performed.

For example, the primary locking projection 24 is provided on each contact 20 as the primary locking means, but means for locking each contact, for example, a housing lance, may be provided on each contact receiving cavity 15 side, or each contact 20 And each contact receiving cavity 15 may be provided.
Further, although the retainer mounting hole 40 is opened on the left side surface of the housing 10, the retainer mounting hole 40 may be opened on the right side surface of the housing 10.

Further, the main locking projection 36 is adapted to be locked to the main locking projection 44 provided on the upper wall 41a of the walls defining the first space 41, but the book provided on the lower wall 41b. You may make it latch to a latching protrusion, and you may make it latch to the recessed part provided in the upper wall 41a or the lower wall 41b.
Further, the temporary locking projection 38 is configured to be locked to the temporary locking corner edge 46 of the rear side wall 41c of the wall defining the first space 41, but the projection provided on the rear side wall 41c is not provided. It may be locked. Moreover, the temporary latching protrusion 38 should just be latched not only to the rear side wall 41c but the wall on the opposite side to the side in which the 2nd space 42 is provided.
Further, the arrangement of the main locking arm 35 and the temporary locking arm 37 may be switched.

The embodiment of the double latching connector which concerns on this invention is shown, (A) is the perspective view seen from the front diagonally upward side, (B) is the perspective view seen from the back diagonally upward side. The state which isolate | separated the retainer from the double latching connector is shown, (A) is the perspective view seen from front diagonally upper side, (B) is the perspective view seen from front diagonally lower side. The double latching connector when a retainer exists in a temporary latching position is shown, (A) is a front view, (B) is a left view, (C) is a rear view. It is sectional drawing which follows the 4-4 line of FIG.3 (C). FIG. 5 is a cross-sectional view taken along line 5-5 in FIG. FIG. 6 is a cross-sectional view taken along line 6-6 in FIG. It is sectional drawing which follows the 7-7 line | wire of FIG.3 (C). The double locking connector when the retainer is in the final locking position is shown, (A) is a left side view, and (B) is a rear view. It is sectional drawing which follows the 9-9 line | wire of FIG. 8 (B). It is sectional drawing which follows the 10-10 line | wire of FIG. 8 (A). It is sectional drawing which follows the 11-11 line of FIG. 8 (A). It is sectional drawing which follows the 12-12 line | wire of FIG. 8 (B). It is sectional drawing of the state in the middle of connecting a double latching connector with respect to the other party connector. It is sectional drawing of the state which completed the connection of the double latching connector with respect to the other party connection body. It is sectional drawing which cut | disconnected some conventional double latching connectors, and has shown the state which has a retainer in a temporary latching position. It is sectional drawing which cut | disconnected some conventional double latching connectors, and has shown the state which has a retainer in this latching position. It is a rear view of the housing used for the double latching connector shown in FIG.15 and FIG.16. It is a rear view of the retainer used for the double latching connector shown in FIG.15 and FIG.16.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Double locking connector 10 Housing 15 Contact accommodating cavity 20 Contact 24 Primary locking protrusion (primary locking means)
30 Retainer 35 Locking arm (first locking arm)
36 locking protrusions (locking protrusions)
37 Temporary locking arm (second locking arm)
38 Temporary locking protrusion (Locking protrusion)
40 Retainer mounting hole 41 First space 41a Upper wall 41c Rear side wall (side wall)
42 2nd space

Claims (2)

A plurality of contacts, each housing each of the plurality of contacts, and a housing having a plurality of contact receiving cavities arranged in two vertical rows along the left-right width direction, each of the contacts and / or In the double locking connector comprising primary locking means provided in each of the contact receiving cavities, and a retainer mounted on the housing as secondary locking means of the plurality of contacts,
The housing has a first space between the upper and lower two rows of contact receiving cavities and a second space that communicates with the first space and intersects the upper and lower two rows of contact receiving cavities and is open to a side surface of the housing. A retainer mounting hole is provided,
The retainer is inserted into the retainer mounting hole from the opening on the side surface of the housing, and has an elastic deformation having a locking projection locked to one of the upper and lower walls that define the first space. Elastically deformable second lock having a lockable first locking arm and a locking projection locked to a wall on the opposite side of the wall defining the first space from the side where the second space is located With arm,
One of the first locking arm and the second locking arm is a final locking arm and the other is a temporary locking arm;
A double-locking connector, wherein the main locking arm and the temporary locking arm are deflected at 90 degrees.   2. The double locking connector according to claim 1, wherein the upper and lower two rows of contact accommodating cavities are arranged in a staggered manner along the left-right width direction.

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