JP3831303B2 - Electrical connector - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electrical connector that easily couples relatively large housings each accommodating a large number of connection terminals.
[0002]
[Prior art]
Conventionally, when connecting large housings, an extremely large force is required. Therefore, one housing may be provided with a bolt or a lever, and the other housing may be provided with a screw hole or a locking portion. . When these housings are connected to each other, after the housings are temporarily fitted together, the bolts or levers of one housing are screwed or locked into the screw holes or locking portions of the other housing, and the bolts are The housing is secondarily forcibly coupled by tightening or rotating the lever.
[0003]
In recent years, when an instrument panel is assembled to a dash panel in an automobile assembly process, attempts have been made to automatically connect the dash panel side wire harness and the instrument side wire harness using an electrical connector. In this case, one housing of the electrical connector is movably attached to the dash panel, the other housing is fixed to the instrument panel, and the housings on the dash panel side are made to follow the instrument panel side housings. May combine.
[0004]
However, although the housing of this type of electrical connector is relatively large, it is impossible to use a bolt or a rotating lever, so a large force is required to connect the housings together. Assembling the instrument panel to the dash panel is extremely difficult.
[0005]
In view of this, the present applicant has proposed an electrical connector in Japanese Patent Application Laid-Open No. 11-31550 that can easily couple relatively large housings without using bolts or rotating levers. As shown in FIG. 10, the electrical connector includes an insertion housing 1 that accommodates a large number of connection terminals 18, a receiving housing 2 that accommodates a large number of connection terminals 32 that can be connected to the connection terminals 18, and an insertion housing 1. It consists of a pressing member 4 provided in the receiving housing 2 for pushing into the receiving housing 2 side. The pressing member 4 includes a reversible disc spring 5 disposed below the receiving housing 2 and a plurality of arms 6 extending from the periphery of the disc spring 5 to the side of the receiving housing 2. Is provided with an inward projection 6 b that engages with the inclined surface 15 of the insertion housing 1.
[0006]
When the insertion housing 1 is received and pushed into the housing 2, the shaft member 12 provided in the insertion housing 1 engages with an engagement hole 5 a provided in the center of the disc spring 5, and presses the disc spring 5 downward. Reverse. As a result, the arm 6 integral with the disc spring 5 tilts inward, and the inward projection 6 b provided on the arm 6 slides on the inclined surface 15 of the insertion housing 1 to receive the insertion housing 1 toward the housing 2. Push in.
[0007]
On the other hand, when the insertion housing 1 is removed from the housing 2, the shaft member 12 of the insertion housing 1 engaged with the engagement hole 5a of the disc spring 5 moves to return the disc spring 5 to its original state. Invert. As a result, the arm 6 integral with the disc spring 5 tilts outward, the inward projection 6 b of the arm 6 is separated from the inclined surface 15 of the insertion housing 1, and the insertion housing 1 can be extracted from the housing 2. And
[0008]
[Problems to be solved by the invention]
Although this conventional electrical connector has the advantage of being able to easily couple relatively large housings 1 and 2 each containing a large number of connection terminals, the insertion housing 1 is removed from the housing 2. In this case, it is necessary to reverse the disc spring 5 to its original state. However, if the shaft member 12 of the insertion housing 1 is not securely engaged with the engagement hole of the disc spring 5, the disc spring 5 cannot be returned to its original state even if the shaft member 12 moves. In some cases, the insertion housing 1 cannot be removed from the receiving housing 2.
[0009]
An object of the present invention is to provide an electrical connector that solves the above-described problems and that allows relatively large housings to be easily coupled to each other and that allows the housings to be easily uncoupled.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, an electrical connector according to the present invention includes an insertion housing that accommodates a first connection terminal group, a receiving housing that accommodates a second connection terminal group, and the insertion housing. A plurality of pressure levers made of a substantially L-shaped rigid body for facilitating pushing or separation of the insertion housing toward the receiving housing. The pressure lever is provided on the receiving housing, and is located below the receiving housing and positioned at a side of the receiving housing, a lower arm portion whose free end is pushed down or pulled up by a shaft portion of the insertion housing. A side arm portion that pivots on the receiving housing by a connecting portion between the lower arm portion and the side arm portion. The side arm has an inward projection that engages with the inclined surface of the insertion housing at an upper end thereof, and an outward projection that engages with the external guide groove of the holding housing in a direction substantially opposite to the inward projection. And an inwardly spaced projection provided to be inserted between the insertion housing and the receiving housing, provided at an intermediate portion between the inward projection and the connecting portion, and the inward projection is formed on the insertion housing. When the shaft portion presses the lower arm portion of the pressure lever, the connection terminals are connected by primary contact pressure by engaging with the inclined surface of the insertion housing, and the receiving housing is inserted into the insertion housing. The connection terminals are connected to each other with a secondary contact pressure larger than the primary contact pressure by the action of the external guide groove provided in the holding housing when the holding housing is pushed down toward the holding housing. When the insertion housing is separated from the receiving housing, the insertion housing is lifted upward via the shaft portion, and the lower arm portion is lifted to tilt the pressure lever to the outside. A protrusion is used to push and spread the insertion housing and the receiving housing to promote separation, and the shaft portion of the insertion housing has an operation shaft that can rotate and move up and down. A plurality of locking hooks capable of locking the pressing portion and the free end of the lower arm portion of the pressure lever are provided at the distal end portion of the pressing lever, and when the lower arm portion is pulled up by the operation shaft, the locking portion is The operation shaft is rotated so that the hook can be locked to the lower arm .
The electrical connector according to the present invention includes an insertion housing that houses the first connection terminal group, a receiving housing that houses the second connection terminal group, and holds the receiving housing so as to follow the insertion housing. In the electrical connector provided with the holding housing, the receiving housing is provided with a plurality of pressure levers made of a substantially L-shaped rigid body for facilitating pushing or separation of the insertion housing toward the receiving housing. The pressure lever is located below the receiving housing and has a lower arm portion whose free end is pushed down or pulled up by a shaft portion of the insertion housing, and a side arm portion located on the side of the receiving housing. And pivotally supported on the receiving housing by a connecting portion between the lower arm portion and the side arm portion, and the side arm The upper end portion thereof has an inward projection that engages with the inclined surface of the insertion housing, an outward projection that engages with the external guide groove of the holding housing in a direction substantially opposite to the inward projection, the inward projection, and the Provided in an intermediate portion with the connecting portion is provided an inwardly spaced projection so as to be inserted between the insertion housing and the receiving housing, and the inward projection is configured such that the shaft portion of the insertion housing is added to the shaft portion. When the lower arm portion of the pressure lever is pressed, the connection terminals are connected with primary contact pressure by engaging with the inclined surface of the insertion housing, and the receiving housing follows the insertion housing and follows the insertion housing. When being pushed down toward the holding housing, the connection terminals are connected by a secondary contact pressure larger than the primary contact pressure by the action of the external guide groove provided in the holding housing, and the insertion housing When separating the housing from the receiving housing, the insertion housing is lifted upward via the shaft portion, the lower arm portion is lifted to tilt the pressure lever outward, and the insertion protrusion is used for the insertion. The insertion housing and the receiving housing are pushed and widened to promote separation, and the separation protrusion is configured to disengage the insertion housing and the reception housing when the inward protrusion engages the inclined surface of the insertion housing. It is characterized by being sandwiched by.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described in detail based on the illustrated embodiment.
FIG. 1 is an exploded sectional view of the embodiment, and FIG. 2 is an assembled sectional view. In this specification, for convenience of explanation, the vertical direction is expressed in accordance with the drawings, but in reality, this electrical connector may be attached in the reverse direction, for example, and the vertical direction is not necessarily the direction of gravity. It doesn't match.
[0012]
In the electrical connector according to this embodiment, for example, a three-divided housing segment 1 having a terminal accommodating hole 1b for accommodating a large number of female connection terminals 1a, and a holder 2 for holding these housing segments 1 together. And the insertion housing 4 is comprised from the axial part 3 attached on the axis line of the holder 2. As shown in FIG. A receiving housing 5 that fits into the insertion housing 4 is held by the holding housing 6 so as to be movable in the axial direction.
[0013]
A pressure lever 7 is rotatably attached to the receiving housing 5 via a shaft support member 8. Note that, for example, three pressure levers 7 are used, and are attached at equal intervals in the circumferential direction of the receiving housing 5 and move in the same manner. However, in the following description, one pressure lever 7 will be described.
[0014]
The housing division 1, the holder 2, the receiving housing 5, and the holding housing 6 are molded from a synthetic resin material, and the shaft portion 3 and the pressure lever 7 are rigid bodies such as metal. The insertion housing 4 is attached to, for example, an automobile instrument panel (not shown), and the holding housing 6 is attached to a dash panel (not shown) so as to be movable in all directions including tilting.
[0015]
As shown in FIG. 3, the pressure lever 7 is substantially L-shaped, and includes a lower arm portion 7 a positioned below the receiving housing 5 and a side arm portion 7 b positioned on the side of the receiving housing 5. The lower arm portion 7a and the side arm portion 7b have a connecting portion 7c for receiving the pressure lever 7 and pivotally supporting the pressure lever 7 on the housing 5.
[0016]
In the upper part of the side arm portion 7 b of the pressure lever 7, an inward projection 7 e that protrudes inward and engages with the inclined surface 15 of the holder 2, and an external guide groove that protrudes outward and is described later of the holding housing 6. An engaging outward projection 7f is provided, and a hole 7g through which the shaft support member 8 is inserted is formed in the connecting portion 7c. A separating projection 7h for insertion between the insertion housing 4 and the receiving housing 5 is provided inwardly at a substantially intermediate portion between the inward projection 7e and the connecting portion 7c of the side arm portion 7b. .
[0017]
The holder 2 has a circular cross section, and a housing accommodating chamber 11 for accommodating the housing split body 1 is provided on the side of the holder 2, and a cylindrical portion for receiving a cylindrical portion described later of the receiving housing 5 at the lower center of the holder 2. A storage chamber 12 is provided. On the outer peripheral surface of the holder 2, three guide grooves 13 for guiding inward projections, which will be described later, of the pressure lever 7 are formed along the axis, and the guide grooves 13 are outward vertical surfaces positioned sequentially from the bottom to the outside. 14, an inclined surface 15 that is gradually inclined inward from the outer vertical surface 14 and an inner vertical surface 16 that is located inward of the outer vertical surface 14 are provided.
[0018]
The shaft portion 3 of the holder 2 is composed of a fixed outer cylinder portion 3a and an operation shaft 3b that can be rotated up and down by an operation member (not shown) in the outer cylinder portion 3a. A pressing portion 3c that presses the free end of the lower arm portion 7a and three locking hooks 3d that can lock the free end of the lower arm portion 7a are provided radially in three directions. The free end of the arm portion 7a is pushed by the pressing portion 3c, or the operation shaft 3b is rotated to lock the locking hook 3d, and can be pulled upward.
[0019]
Note that the operation shaft 3b may not be rotatable with respect to the outer cylinder portion 3a, and the outer cylinder portion 3a may be rotatable with respect to the holder 2. In any case, the rotation is restricted to a predetermined angle, and the operation shaft 3b can be rotated only when the operation shaft 3b is locked to the locking hook 3d. Otherwise, the operation shaft 3b is returned to the original rotation angle position by a spring or the like. It is preferable to do so.
[0020]
The receiving housing 5 has a cylindrical side wall 21 into which the holder 2 is fitted. A tapered guide surface 21 a for guiding the holder 2 to the inside is formed on the upper side of the side wall 21. A bottom wall 22 is provided in the lower part of the side wall 21, and a hole 23 is formed in the bottom wall 22 so that the operation shaft 3 b of the insertion housing 4 protrudes below the bottom wall 22. On the bottom wall 22, a cylindrical portion 24 having a tapered guide surface 24 a at the upper portion on the axis and guiding the shaft portion 3 to the hole portion 23 is provided. A fulcrum stand 25 is provided.
[0021]
On the side wall 21, three arm moving windows 26 for arranging the side arm portions 7b of the pressure lever 7 are provided at equal intervals in the circumferential direction, and terminal portion insertion windows 27 are formed at similar intervals. Has been. For example, three flat cable terminal portions 28 having a large number of male connection terminals 28a corresponding to the female connection terminals 1a of the insertion housing 4 from the terminal portion insertion window 27 are connected to the axis line as shown in FIG. It is accommodated at equal intervals from three orthogonal directions. Three support portions 29 for supporting the connecting portions 7c of the pressure lever 7 are provided in the peripheral portion of the lower surface of the bottom wall 22 so as to protrude downward. A hole 29a through which the shaft support member 8 that supports the shaft is inserted is formed.
[0022]
The holding housing 6 is provided with a cylindrical side wall 31 that receives the side wall 21 of the receiving housing 5 and a bottom wall 32 that closes the lower end portion of the side wall 31. In the side wall 31, a terminal portion insertion window 33 is formed so as to correspond to the terminal portion insertion window 27 of the receiving housing 5, through which the flat cable terminal portion 28 is movably inserted in the direction along the axis. Three external guide grooves 34 that fit into the outward projections 7f of the pressure lever 7 are formed on the inner peripheral surface of the side wall 31 at equal intervals in the circumferential direction. Has a recess 34a that retracts outward and an inclined surface 34b that slopes inward downward.
[0023]
When assembling the electrical connector, first, the three housing parts 1 are housed and fixed in the housing housing chamber 11 of the holder 2. Next, the shaft support member 8 is inserted into the hole 29 a of the receiving housing 5 and the hole 7 g of the pressure lever 7, and the three pressure levers 7 are received and supported rotatably on the housing 5. Further, the receiving housing 5 is fitted into the holding housing 6 so that the outward projection 7f of the pressure lever 7 is fitted into the concave portion 34a of the external guide groove 34, and the receiving housing 5 is held by the holding housing 6 by a pull-out prevention mechanism (not shown). Try not to get out of it.
[0024]
Subsequently, the insertion housing 4 is attached to a predetermined position of the instrument panel, and all the connection terminals 1 a connected to the rear portion of the electric wire are accommodated in the terminal accommodation holes 1 b of the housing body 1. A holding housing 6 holding the receiving housing 5 is attached to a predetermined position of the dash panel so as to be movable in all directions. Next, the flat cable terminal portion 28 attached to the dash panel is inserted into the receiving housing 5 through the holding housing 6 and the terminal portion insertion windows 33 and 27 of the receiving housing 5, and the flat cable terminal portion 28 is fixed to the housing 5.
[0025]
Thus, the following procedure is performed to assemble the instrument panel including the insertion housing 4 to the dash panel including the receiving housing 5 and the holding housing 6. As shown in FIG. 2, while the insertion housing 4 does not press the receiving housing 5, the outward projection 7 f of the pressure lever 7 is fitted in the recess 34 a of the external guide groove 34 of the holding housing 6. When the shaft portion 3 of the insertion housing 4 enters the cylindrical portion 24 of the receiving housing 5, the distal end portion of the shaft portion 3 slides on the guide surface 24 a of the cylindrical portion 24, and the receiving housing 5 is moved together with the holding housing 6 from the neutral position. By moving in all directions including tilting, the insertion housing 4 and the receiving housing 5 can be easily fitted.
[0026]
As shown in FIG. 5, when the insertion housing 4 enters the receiving housing 5, the shaft portion 3 enters the inside of the cylindrical portion 24 and stops, and only the distal end portion of the operation shaft 3 b protrudes from the hole portion 23 and is pressed. The part 3c presses the free end of the lower arm part 7a of the pressure lever 7 downward. At this time, the side arm portion 7b rotates counterclockwise around the shaft support member 8, and the inward projection 7e moves inward to be positioned between the outer vertical surface 14 and the inclined surface 15 of the holder 2. To do. Further, the connection terminal 1a in the housing split body 1 and the connection terminal 28a of the flat cable terminal portion 28 are close to each other.
[0027]
As shown in FIG. 6, when the insertion housing 4 further enters the receiving housing 5, the pressing portion 3 c of the shaft portion 3 further rotates the pressure lever 7 in the counterclockwise direction. As a result, the inward projection 7e of the pressure lever 7 presses while sliding on the inclined surface 15 of the holder 2, and receives the insertion housing 4 into the housing 5 side. At the same time, the connection terminal 1a in the housing segment 1 and the connection terminal 28a of the flat cable terminal portion 28 are connected by primary contact pressure. At this time, the separation protrusion 7 h is interposed between the fulcrum base 25 of the receiving housing 5 and the bottom surface of the holder 2 of the insertion housing 4.
[0028]
As shown in FIG. 7, when the insertion housing 4 is further pushed in from the primary contact pressure state, the receiving housing 5 follows the insertion housing 4 and moves downward in the holding housing 6. The protrusion 7 f moves downward while pressing the inclined surface 34 b of the external guide groove 34 of the holding housing 6. As a result, the outward projection 7f is pressed inward by a strong reaction force from the inclined surface 34b, the inward projection 7e of the pressure lever 7 is strongly pressed against the inclined surface 15 of the holder 2, and the insertion housing 4 is received in the housing 5. Push it firmly into.
[0029]
At the same time, the connection terminal 1a in the housing split body 1 and the connection terminal 28a of the flat cable terminal portion 28 are connected with a secondary contact pressure larger than the primary contact pressure. At this time, the separation protrusion 7 h is sandwiched between the bottom of the insertion housing 4 and the fulcrum base 25 of the receiving housing 5. Thereby, the electrical connection state of the insertion housing 4 and the receiving housing 5 is completed, and energization is performed.
[0030]
On the other hand, when removing the instrument panel from the dash panel, the instrument panel is separated from the dash panel, and the operation shaft 3b of the shaft portion 3 of the insertion housing 4 integrated with the instrument panel is shown in FIG. Thus, the locking hook 3d is rotated so that the pressure lever 7 is locked to the free end of the lower arm portion 7a, and the insertion housing 4 is pulled up so as to be separated from the housing 5. The pulling force acts as a clockwise moment around the lower arm portion 7a and the shaft support member 8, and the receiving housing 5 has a friction between the outward projection 7f of the pressure lever 7 and the inclined surface 34b of the external guide groove 34. The force moves against the force in the holding housing 6 so as to follow the insertion housing 4, and reaches the position where the outward projection 7f of the side arm portion 7b fits into the recess 34a of the external guide groove 34.
[0031]
When the receiving housing 5 is restrained by the holding housing 6 and cannot follow the insertion housing 4 by the unillustrated pull-out preventing mechanism (not shown), the lifting force is mainly applied to the connection terminals 1a in the housing body 1 as shown in FIG. As shown in FIG. 9, the pressure lever 7 works to rotate clockwise around the shaft support member 8 against the bonding force between the flat cable terminal portion 28 and the connection terminal 28 a. The separation protrusion 7h generates a component force that causes the insertion housing 4 to be separated upward by lever operation with the fulcrum base 25 of the reception housing 5 as a fulcrum.
[0032]
This component force facilitates the separation of the insertion housing 4 and the receiving housing 5, so that the insertion housing 4 can be separated from the housing 5 relatively easily. If the restraint of the operation shaft 3b is released after the separation, the operation shaft 3b is returned to the original angular position by the spring force, so that the lower arm portion 7 is released from the locking hook 3d.
[0033]
Needless to say, the present invention is not limited to the embodiments, and extends to other embodiments within the scope of the claims.
[0034]
【The invention's effect】
As described above, in the electrical connector according to the present invention, the inward projection of the pressure lever is engaged with the inclined surface of the insertion housing when the shaft portion of the insertion housing presses the lower arm portion of the pressure lever. Then, the connection terminals are connected to each other with a primary contact pressure. When the insertion housing follows the receiving housing, the connection terminals are connected to each other with a secondary contact pressure larger than the primary contact pressure by the action of the inclined surface provided on the holding housing. It is possible to connect with. Further, it is possible to energize the insertion housing and the receiving housing by the action of the separation protrusions, and a large number of first connection terminal groups and second connection terminal groups are respectively attached to the insertion housing and the reception housing. Even if accommodated, the housings can be easily coupled or released.
[Brief description of the drawings]
FIG. 1 is an exploded sectional view of an embodiment.
FIG. 2 is an assembled cross-sectional view.
FIG. 3 is a perspective view of a pressure lever.
FIG. 4 is an exploded cross-sectional view of a receiving housing and its attached members.
FIG. 5 is an operation explanatory diagram.
FIG. 6 is an operation explanatory diagram.
FIG. 7 is an operation explanatory diagram.
FIG. 8 is an operation explanatory diagram.
FIG. 9 is an operation explanatory diagram.
FIG. 10 is a cross-sectional view of a conventional electric connector of the same type.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Housing division | segmentation 1a Female connection terminal 1b Terminal accommodation hole 2 Holder 3 Shaft part 3a Outer cylinder part 3b Operation shaft 3c Pressing part 3d Locking hook 4 Insertion housing 5 Receiving housing 6 Holding housing 7 Pressure lever 7a Lower arm part 7b Side arm portion 7c Connecting portion 7e Inward projection 7f Outward projection 7h Separation projection 13 Guide groove 14 Outer vertical surface 15 Inclined surface 16 Inner vertical surface 22 Bottom wall 23 Hole portion 24 Tube portion 25 Support point base 28 Flat cable terminal portion 28a Male connection terminal 31 Side wall 32 Bottom wall 34 External guide groove 34a Recess 34b Inclined surface

Claims (2)

An electrical connector comprising: an insertion housing that houses a first connection terminal group; a receiving housing that houses a second connection terminal group; and a holding housing that holds the receiving housing so as to follow the insertion housing. A plurality of pressure levers made of a substantially L-shaped rigid body for facilitating pushing or separation of the insertion housing toward the receiving housing, and the pressure lever includes the receiving housing. A lower arm portion whose free end is pushed down or pulled up by a shaft portion of the insertion housing, and a side arm portion located on a side of the receiving housing, and the lower arm portion, The receiving housing is pivotally supported by a connecting portion between the side arm portions, and the side arm portion has the insertion housing at the upper end thereof. An inward projection that engages with the inclined surface of the groove, an outward projection that engages with the external guide groove of the holding housing in a direction substantially opposite to the inward projection, and an intermediate portion between the inward projection and the connecting portion. An inward-facing separation protrusion is provided so as to be inserted between the insertion housing and the receiving housing, and the inward protrusion is configured such that the shaft portion of the insertion housing presses the lower arm portion of the pressure lever. At the time of engaging the inclined surface of the insertion housing and connecting the connection terminals with each other by primary contact pressure, when the receiving housing follows the insertion housing and is pushed down toward the holding housing, The connection terminals are connected to each other with a secondary contact pressure larger than the primary contact pressure by the action of the external guide groove provided in the holding housing, and the insertion housing is separated from the receiving housing. In addition, the insertion housing is lifted upward via the shaft portion, the lower arm portion is lifted to tilt the pressure lever outward, and the separation protrusions allow the space between the insertion housing and the receiving housing. The shaft portion of the insertion housing has an operation shaft that can be rotated and moved up and down, and a pressing portion and the pressure lever are provided at the distal end portion of the operation shaft. A plurality of locking hooks capable of locking the free end of the lower arm portion are provided, and when the lower arm portion is pulled up by the operation shaft, the locking hook can be locked to the lower arm. An electrical connector characterized in that the operating shaft is rotated . An electrical connector comprising: an insertion housing that houses a first connection terminal group; a receiving housing that houses a second connection terminal group; and a holding housing that holds the receiving housing so as to follow the insertion housing. A plurality of pressure levers made of a substantially L-shaped rigid body for facilitating pushing or separation of the insertion housing toward the receiving housing, and the pressure lever includes the receiving housing. A lower arm portion whose free end is pushed down or pulled up by a shaft portion of the insertion housing, and a side arm portion located on a side of the receiving housing, and the lower arm portion, The receiving housing is pivotally supported by a connecting portion between the side arm portions, and the side arm portion has the insertion housing at the upper end thereof. An inward projection that engages with the inclined surface of the groove, an outward projection that engages with the external guide groove of the holding housing in a direction substantially opposite to the inward projection, and an intermediate portion between the inward projection and the connecting portion. An inward-facing separation protrusion is provided so as to be inserted between the insertion housing and the receiving housing, and the inward protrusion is configured such that the shaft portion of the insertion housing presses the lower arm portion of the pressure lever. At the time of engaging the inclined surface of the insertion housing and connecting the connection terminals with each other by primary contact pressure, when the receiving housing follows the insertion housing and is pushed down toward the holding housing, The connection terminals are connected to each other with a secondary contact pressure larger than the primary contact pressure by the action of the external guide groove provided in the holding housing, and the insertion housing is separated from the receiving housing. In addition, the insertion housing is lifted upward via the shaft portion, the lower arm portion is lifted to tilt the pressure lever outward, and the separation protrusions allow the space between the insertion housing and the receiving housing. so as to facilitate the separation and push the, the separation protrusions when said inward projection is engaged with the inclined surface of the insertion housing, characterized by being sandwiched by the insertion housing and the receiving housing Electrical connector.

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