JP7215854B2 - movable connector - Google Patents

Description

The present invention relates to a movable connector having a floating function.

A bottom entry type connector (bottom entry connector) described in Patent Document 1, for example, is known as a connector for connecting a connection target to a circuit on a substrate. The connector 10 includes a fixed housing 11 mounted on a board, a movable housing 12 accommodated in the fixed housing 11, and a terminal 13 having a movable piece 13b supporting the movable housing 12 inside the fixed housing 11 so as to be displaceable. I have. The movable housing 12 is provided with an insertion hole 12e on the surface facing the substrate. To electrically connect an object to be connected (for example, a pin terminal of an electrical element) to the connector 10, the object to be connected is inserted into the insertion hole 12e from the back side of the substrate, and the object to be connected is inserted into the terminal 13 inside the movable housing 12. It is made to be in conductive contact with the contact portion 13e.

JP 2017-139101 A, FIG.

In this conventional connector 10, when the number of connectors 10 mounted on the board increases or when the number of terminals 13 provided in the connector 10 increases, the insertion force when fitting the connection object becomes excessive. As a result, there is a risk that the solder joints of the connector 10 mounted on the board may crack or come off. Therefore, there is a possibility that the insertion of the object to be connected is stopped halfway, or that the fitting workability is deteriorated. One solution to this problem is to lower the contact pressure of the contact portion 13e against the connection object. However, if the contact pressure is lowered, for example, when the connector 10 is subjected to vibration in the usage environment, the contact portion 13e will come into slight sliding contact with the object to be connected. Then, the plating on the surface of the object to be connected is peeled off due to fine sliding wear, making it difficult to maintain stable conductive contact. In movable connectors including bottom entry type connectors such as the connector 10, the easiness of multi-pole connection and the stability of conductive contact of individual contact portions are contradictory requirements.

The present invention was conceived against the background of the prior art as described above. SUMMARY OF THE INVENTION It is an object of the present invention to improve the easiness of mating connection and the stability of conductive connection of a movable connector.

In order to achieve the above objects, the present invention is configured to have the following features.

That is, the present invention comprises a first housing fixed to a substrate, a second housing having a connection chamber into which an object to be connected is inserted, and a contact portion arranged in the connection chamber and electrically connected to the object to be connected. and a movable portion supporting the second housing displaceably with respect to the first housing in a direction crossing the direction of insertion of the object to be connected into the connection chamber. A pressing member that presses the second housing is further provided, and when the second housing is pressed by the pressing member, the second housing is relatively displaced in the cross direction with respect to the connection object, and the contact portion is 2. The pressure contact is made while increasing the contact pressure with respect to the object to be connected by the relative displacement of the second housing.

According to the present invention, the second housing displaceably supported by the movable portion is displaced with respect to the connection objects arranged in the connection chambers of the first housing and the second housing. That is, the second housing is displaced by the pressing member pressing the second housing in the cross direction. Contact portions of the terminals are arranged in the connection chambers of the displaceable second housing. Therefore, as the second housing is displaced, the contact portion of the terminal comes closer to the object to be connected arranged in the connection chamber, and press-contacts while increasing the contact pressure to the object to be connected. Therefore, according to the movable connector of the present invention, even if the relative insertion positions of the movable connector and the object to be connected are misaligned in the crossing direction, the displacement of the second housing supported by the movable portion allows the position to be adjusted. Ability to absorb deviations.

Further, when the second housing is displaced, the contact portion is pressed against the connection object as described above. As a result, the movable connector and the object to be connected are fitted and connected. Therefore, according to the present invention, when the connection object is placed in the second housing, it is possible to prevent the connection object from receiving the pressing force from the contact portion during fitting connection, or to reduce the pressing force. Therefore, the arrangement structure of the object to be connected with respect to the connection chamber can be configured as a LIF (Light Insertion Force) structure with a small insertion force or a ZIF (Zero Insertion Force) structure with zero insertion force. Therefore, the movable connector of the present invention can easily insert the object to be connected into the connection chamber.

The pressing member is fixed to the second housing by being pushed into the second housing, and the fitting connection state in which the contact portion is in pressing contact with the connection object is realized. Can be configured to hold

According to the present invention, the second housing can be easily displaced by the operation of pushing the pressing member into the second housing, and the contact portion can be brought into pressing contact with the connection object. In addition, since the pressing member is fixed to the second housing by the pressing operation, it is possible to reliably maintain the fitted connection state in which the contact portion is pressed into contact with the connection object. Therefore, according to the present invention, the fitting connection between the movable connector and the connection object can be easily performed.

The pressing member can be configured to have an insertion pressing portion that is inserted between the object to be connected arranged in the connection chamber and the inner surface of the second housing to press the second housing.

According to the present invention, the insertion pressing portion is inserted while being sandwiched between the object to be connected and the inner surface of the second housing by the operation of pressing the pressing member into the second housing. Therefore, the insertion pressing portion can reliably press the inner surface of the second housing, and the pressing operation can reliably displace the second housing.

The insertion pressing portion can be configured to have an arrangement recess extending along the insertion direction and for arranging the connection object on a surface facing the connection object.

According to the present invention, the object to be connected is positioned in the arrangement concave portion of the insertion pressing portion. Therefore, when the pressing member is pushed in, the insertion pressing portion can be inserted while suppressing the positional deviation of the connection target.

The present invention can further include a continuity detection terminal arranged in the pressing member and conductively connected to the connection object arranged in the connection chamber.

According to the present invention, it is possible to confirm that the connection object is appropriately fitted and connected to the movable connector by conducting electrical contact between the connection object and the continuity detection terminal.

The continuity detection terminal can be configured to be arranged in the arrangement recess.

According to the present invention, since the placement recess in which the connection object is placed has the continuity detection terminal, the connection object can be reliably brought into electrical contact with the continuity detection terminal. In addition, since the connection object receives the pressure contact of the contact portion and is in conductive contact with the conduction detection terminal arranged in the arrangement concave portion, the detection can be reliably performed.

The continuity detection terminal can be configured to have an external contact portion arranged on the outer surface of the pressing member.

According to the present invention, since the external contact portion of the continuity detection terminal is arranged on the outer surface of the pressing member, the inspection device can be brought into contact with the external contact portion from outside the pressing member. Therefore, according to the present invention, the continuity test can be easily performed.

In the present invention, further, the pressing member is engaged with the pressing member at a pre-fitting position where the pressing member does not press the second housing, thereby preventing the pressing member from being displaced toward the second housing. It can be configured to have a restraining retention spring.

According to the present invention, it is possible to restrict the pressing member from being displaced unintentionally with respect to the second housing.

The present invention further includes a board fixing member for fixing the first housing to the board, wherein the board fixing member has the holding spring and a board fixing portion for fixing to the board. can be configured as

According to the present invention, the board fixing member for fixing the first housing to the board has the board fixing portion and the holding spring, so that the board fixing member is used for fixing to the board and the pressing member for the second housing is applied. It can also be used to hold the combined position. Therefore, an increase in the number of parts can be suppressed.

Advantageous Effects of Invention According to the movable connector of the present invention, fitting connection is easy and stable conductive connection can be ensured.

1 is an exploded perspective view including a front, left side, and top view of a movable connector according to one embodiment; FIG. It is a figure which shows the fixed housing of FIG. 1, 2A is a perspective view including a front, a left side, and a top, 2B is a bottom view. It is a figure which shows the movable housing of FIG. 1, 3A is a top view, 3B is a bottom view. It is a figure which shows the operation housing of FIG. 1, 4A is a rear view, 4B is a bottom view. FIG. 2 is a perspective view including a front surface, a left side surface, and a plane of the board connection terminal of FIG. 1 ; FIG. 2 is a perspective view including a front surface, a left side surface, and a top surface showing a state in which the movable connector of FIG. 1 is mounted on a substrate; FIG. 7 is a plan view of FIG. 6; FIG. 8 is a cross-sectional view taken along line VIII-VIII of FIG. 7; 9A is a perspective view including a front, a left side, and a plan showing the fitting process of the movable housing and the operation housing, 9A is a perspective view before fitting and fixing, and 9B is a perspective view after fitting and fixing; FIG. FIG. 8 is a cross-sectional view corresponding to line XX in FIG. 7, showing the fitting connection process between the movable connector and the connection object; Sectional drawing which shows the fitting connection process following FIG. Sectional drawing which shows the fitting connection process following FIG. FIG. 8 is a cross-sectional view corresponding to line XX in FIG. 7, showing the mating connection process in a state where the movable connector and the connection target are out of position; FIG. 14 is a cross-sectional view showing a fitting connection process following FIG. 13; FIG. 15 is a cross-sectional view showing a fitting connection process following FIG. 14;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following embodiments, embodiments of the bottom entry type movable connector 1 (bottom entry connector) will be described. The movable connector 1 is mounted on the board P1 shown in FIG. A hole P1a is formed through the substrate P1, and the movable housing 4 is inserted therethrough. A pin terminal P2 as a "connection object" is arranged inside the movable housing 4 from below the substrate P1. In the connection structure of the movable connector 1, the substrate P1 and the pin terminals P2 are non-movable members that do not move in the XY directions when the movable connector 1 and the pin terminals P2 are fitted and connected.

In this specification, claims, and drawings, the arrangement direction (horizontal direction) of the plurality of terminals of the movable connector 1 shown in FIG. The height direction (vertical direction) of the movable connector 1 will be described as the Z direction. However, specifying such a direction does not limit the mounting direction and usage direction of the movable connector 1 . In addition, the terms "first" and "second" described in this specification and claims are used to distinguish different constituent elements of the invention, and indicate a specific order or superiority or inferiority. It is not used for

Configuration of movable connector 1

The movable connector 1 has a housing 2 made of hard resin. The housing 2 has a fixed housing 3 as a "first housing", a movable housing 4 as a "second housing", and an operation housing 5 as a "pressing member". A terminal 6 made of a metal piece is fixed to the fixed housing 3 and the movable housing 4 . A continuity detection terminal 7 is attached to the operation housing 5 . A board fixing member 8 is attached to the fixed housing 3 .

Fixed housing 3

The fixed housing 3 is mounted on the substrate P1. The fixed housing 3 is formed of a rectangular frame-shaped resin molding. The stationary housing 3 has a cylindrical peripheral wall 3a. The peripheral wall 3a has a front wall 3b, a rear wall 3c, and left and right side walls 3d. A housing space 3e is formed inside the fixed housing 3, and the movable housing 4, the operation housing 5, and the terminals 6 are arranged therein. The inner peripheral surface of the peripheral wall 3a is an opening through which the movable housing 4 can be inserted with a gap therebetween.

The front wall 3b is formed with left and right locking recesses 3b1 for locking locking projections 4a4 of the movable housing 4, which will be described later, in the X direction and the Z direction. Similar engagement recesses 3c1 are also formed on the left and right sides of the rear wall 3c. The rear wall 3c is formed with a plurality of fixed-side terminal fixing portions 3c2 aligned in the X direction, into which the fixed housing fixing portions 6b of the terminals 6 are press-fitted and held. In the left and right side walls 3d, board fixing member fixing portions 3d1 into which the board fixing member 8 is press-fitted are formed in the walls of the side walls 3d. A locking groove 3d2 extending along the height direction is formed in the side wall 3d so as to penetrate the side wall 3d. The locking protrusion 8c of the board fixing member 8 fixed to the board fixing member fixing portion 3d1 enters into the locking groove 3d2 and is locked downward in the Z direction.

movable housing 4

The movable housing 4 is made of a rectangular frame-shaped resin molding. The movable housing 4 has a front wall 4a, a rear wall 4b, left and right side walls 4c, and a bottom wall 4d.

The front wall 4a is formed with a lock recess 4a1 into which a lock arm 5a of the operation housing 5, which will be described later, is inserted. A lock hole 4a2 into which the lock protrusion 5a1 of the lock arm 5a is inserted is formed in the lock recess 4a1. The lock hole 4a2 is formed with a first retaining portion 4a3, and the lock projection 5a1 is engaged therewith upward in the Z direction to prevent the operation housing 5 from being detached from the movable housing 4. are preventing. The left and right locking projections 4a4 are formed on the front wall 4a so as to protrude forward. Engagement guide projections 4a5 are formed on the left and right sides of the upper end of the front wall 4a so as to protrude forward and guide the displacement of the operation housing 5 due to the pushing operation, which will be described later. to prevent it from slipping out.

A plurality of terminal arrangement grooves 4b1 extending along the Z direction are formed side by side in the X direction on the inner surface of the rear wall 4b. A movable housing fixing portion 6d of the terminal 6 and a contact portion 6e, which will be described later, are arranged in the terminal arrangement groove 4b1. Since each terminal arrangement groove 4b1 is formed in a concave shape, adjacent contact portions 6e are not electrically connected to each other. A movable side terminal fixing portion 4b2 is formed in each terminal arrangement groove 4b1, and a movable housing fixing portion 6d of the terminal 6 is press-fitted and held therein. Further, on the rear wall 4b, locking projections 4b3 are formed to protrude rearward to engage with the locking recesses 3c1 of the fixed housing 3 described above in the X and Z directions.

The side wall 4c is formed as a flat plate piece extending in the Z direction. The side wall 4c is arranged along an insertion guide portion 5e3 formed on the inner surface of the operation housing 5, which will be described later, and functions as a guide when the operation housing 5 is pushed.

A plurality of insertion holes 4d1 for inserting pin terminals P2 as "connection objects" are formed side by side in the X direction in the bottom wall 4d. A guiding inclined surface 4d2 for guiding the pin terminal P2 is formed on the inlet side of the insertion hole 4d1. When the hole axis of the insertion hole 4d1 and the axis of the pin terminal P2 are misaligned in the XY direction, the pin terminal P2 and the guiding inclined surface 4d2 abut against each other, thereby guiding the insertion of the pin terminal P2. be done.

The inside of the movable housing 4 as described above is formed as a connection chamber 4e. That is, the pin terminal P2 is inserted into the connection chamber 4e from the insertion hole 4d1.

Operation housing 5

The operation housing 5 as a "pressing member" has a lock arm 5a, an insertion pressing portion 5b, a cover portion 5c, an engaging guide portion 5d, left and right side walls 5e, a rear wall 5f (FIG. 4A), and a top wall 5g. there is

The lock arm 5a is formed integrally with the contact surface 5b1 on the front side of the insertion pressing portion 5b. The lock arm 5a is formed as a cantilever-like elastic piece projecting forward from the contact surface 5b1 and extending in the Z direction. The locking projection 5a1 described above is formed on the locking arm 5a. The lock projection 5a1 prevents the operation housing 5 from coming off from the movable housing 4 by engaging with the first locking portion 4a3 of the movable housing 4 in the Z direction.

The insertion pressing portion 5b is formed in a plate shape, and a contact surface 5b1 is formed on the front side. On the opposite rear side, a plurality of arrangement recesses 5b2 extending in the Z direction are formed side by side in the X direction. The upper end of the placement recess 5b2 extends to an opening 5g1 penetrating through the top wall 5g. On the other hand, an insertion portion 5b3 for the pin terminal P2 is formed at the lower end of the placement recess 5b2. An insertion portion 5b3 is formed at a position extending above the insertion hole 4d1 of the movable housing 4 in the Z direction.

The cover portion 5c is formed of concave walls protruding forward in the Y direction from the left and right side walls 5e, and the engagement guide portion 5d is arranged inside thereof. That is, the cover portion 5c includes a pair of side wall portions 5c1 extending in the Y direction, a front wall portion 5c2 connecting the pair of side wall portions 5c1 in the X direction, and positioned at the upper ends of the pair of side wall portions 5c1 and the front wall portion 5c2. and an upper wall portion 5c3. A gap is formed between the pair of side wall portions 5c1 and the insertion pressing portion 5b, and the front wall 4a of the movable housing 4 is inserted into the gap.

The engagement guide portion 5d is protected from the outside by being covered with the cover portion 5c. The engagement guide portion 5d is formed as a U-shaped clip extending downward in the Z direction from the upper wall portion 5c3 of the cover portion 5c. Specifically, the engagement guide portion 5d has a pair of elastic arms 5d1 and a second retaining portion 5d2 that connects the lower ends of the pair of elastic arms 5d1. The engagement guide projection 4a5 of the movable housing 4 is inserted between the pair of elastic arms 5d1. Therefore, when the operation housing 5 is pushed into the movable housing 4, the engagement guide projections 4a5 of the movable housing 4 move while being guided by the pair of elastic arms 5d1. When an attempt is made to remove the operation housing 5 from the movable housing 4, the engagement guide portion 5d is displaced upward in the Z direction with respect to the engagement guide projection 4a5, and the second locking portion 5d2 is displaced from the engagement guide portion. 5d. As a result, it is possible to prevent the operation housing 5 from unintentionally detaching from the movable housing 4 .

The side wall 5e is formed with a first engagement receiving portion 5e1 that engages with a holding spring 8b of a board fixing member 8, which will be described later. As shown in FIG. 9B, in a fitted connection state in which the operation housing 5 is pushed in and fitted to the movable housing 4, the holding spring 8b presses and locks the first lock receiving portion 5e1 from above. . Therefore, it is possible to prevent the operation housing 5 from rattling with respect to the movable housing 4 in the Z direction, thereby preventing troubles such as poor connection. Below the first locking receiving portion 5e1, a second locking receiving portion 5e2 that similarly locks with the holding spring 8b is formed. The second locking receiving portion 5e2 is formed as a recess. As shown in FIG. 9A , the second locking receiving portion 5 e 2 is pressed against the holding spring 8 b to prevent the operation housing 5 from being pushed into the movable housing 4 in the pre-fitting position where the movable housing 4 is not pressed. It is held so as to maintain the unmated connection state. An insertion guide portion 5e3 for guiding the insertion of the side wall 4c of the movable housing 4 is formed on the inner surface of the side wall 5e.

The rear wall 5f is arranged so as to fit into the concave portion 3f formed by the pair of side walls 3d and the rear wall 3c of the fixed housing 3 in a fitted connection state in which the operation housing 5 is pushed in and connected to the movable housing 4. be done. In particular, when removing the operation housing 5 from the movable housing 4, the operation housing 5 can be held by using the rear wall 5f as a grip portion on the rear side. In this case, the lock arm 5a and the cover portion 5c can be used as the gripping portion on the front side.

The top wall 5g is located on the top surface of the operation housing 5. As shown in FIG. The top wall 5g is formed with the opening 5g1 as described above. As shown in FIG. 7, the opening 5g1 is used to check whether or not the pin terminal P2 is properly arranged with respect to the contact portion 6e of the terminal 6 and the continuity detection terminal 7 by visual inspection using a captured image or the like. is formed as an inspection opening.

terminal 6

A plurality of terminals 6 are arranged in parallel on the movable connector 1 along the X direction. Each terminal 6 has the same shape. Specifically, as shown in FIG. 5, it has a board connection portion 6a, a stationary housing fixing portion 6b, a movable portion 6c, a movable housing fixing portion 6d, and a contact portion 6e.

The board connection part 6a is electrically connected to the circuit of the board P1 by being fixed to the board P1 by a soldering part. The fixed housing fixing portion 6b is press-fitted and held in the fixed side terminal fixing portion 3c2 of the fixed housing 3. As shown in FIG. As a result, one end of the terminal 6 is fixed to the fixed housing 3 . On the other hand, the movable housing fixing portion 6d is press-fitted into the movable side terminal fixing portion 4b2 of the movable housing 4 and held. Thereby, the other end side of the terminal 6 is fixed to the movable housing 4 .

The contact portion 6e has a front contact portion 6e1 and a rear contact portion 6e2. The front contact portion 6e1 has a pair of front elastic arms 6e3 extending from the movable housing fixing portion 6d, and a front contact portion 6e4 provided at the tip of the pair of front elastic arms 6e3. The rear contact portion 6e2 includes a rear elastic arm 6e5 extending between the pair of front elastic arms 6e3 from the movable housing fixing portion 6d, and the rear contact portion 6e2 provided at the tip of the pair of rear elastic arms 6e5 and extending between the pair of front elastic arms 6e3. and a rear contact portion 6e6 arranged in the .

The contact portion 6e of this embodiment has a multi-point contact structure in which a front contact portion 6e1 and a rear contact portion 6e2 contact the pin terminal P2. Therefore, even if there is a problem with one of the conductive contacts, the other conductive contact can be brought into normal conductive contact, so that the reliability of the conductive connection can be enhanced.

Further, the front contact portion 6e1 first comes into sliding contact with the pin terminal P2, and then the rear contact portion 6e2 comes into sliding contact therewith. Therefore, the rear contact portion 6e2 can be conductively contacted with the pin terminal P2 in a state in which the foreign matter adhering to the pin terminal P2 is removed by the front contact portion 6e1. This also makes it possible to improve the reliability of the conductive connection.

Furthermore, since the contact portion 6e has a multi-point contact structure as described above, the front contact portion 6e1 and the rear contact portion 6e2 contact each other at two points spaced apart in the longitudinal direction of the rod-shaped pin terminal P2. Here, if a one-point contact structure is adopted, the pin terminal P2 makes point contact with the conduction detection terminal 7 in a state in which the pin terminal P2 is tilted about the contact point as a fulcrum, and stably holds the conduction contact posture of the pin terminal P2. may not be possible. However, since the contact portion 6e has a two-point contact structure, it is possible to bring the pin terminal P2 straight along the continuity detection terminal 7 and bring them into electrical contact.

The movable portion 6c is formed as a spring piece that supports the movable housing 4 with respect to the fixed housing 3 so as to be displaceable in the XYZ directions. The movable portion 6c has an outer vertical piece portion 6c1, a folded bent portion 6c2, and an inner vertical piece portion 6c3, and is formed in an inverted U shape as a whole. As a result, the movable portion 6c can displace the movable housing 4 in the direction (X direction) intersecting the insertion direction (Z direction) of the pin terminal P2 into the connection chamber 4e.

Continuity detection terminal 7

The continuity detection terminal 7 is made of a flat plate-like conductive metal, is arranged in the operation housing 5, and is electrically connected to the pin terminal P2 arranged in the connection chamber 4e. The continuity detection terminal 7 has an internal contact portion 7a arranged in the groove of the arrangement recess 5b2 of the operation housing 5. As shown in FIG. The plate thickness of the internal contact portion 7a is thinner than the groove depth of the arrangement recess 5b2, and is arranged so as not to protrude from the arrangement recess 5b2. The continuity detection terminal 7 has an external contact portion 7 b arranged on the outer surface of the operation housing 5 . Since the external contact portion 7b is arranged so as to be exposed inside the opening portion 5g1 of the operation housing 5, the inspection device can be electrically connected to the external contact portion 7b. Therefore, the continuity test can be easily performed.

Board fixing member 8

The board fixing member 8 is made of a flat plate-like conductive metal and fixes the fixed housing 3 to the board P1. The board fixing member 8 has a board fixing portion 8a soldered to the board P1, a holding spring 8b, and a locking protrusion 8c.

As described above, the holding spring 8b presses the first engagement receiving portion 5e1 from above in the fitted connection state in which the operation housing 5 is pushed in and the movable housing 4 is fitted and connected. Lock. Further, the holding spring 8b holds the unfitted connection state before the operation housing 5 is pushed into the movable housing 4 by pressing against the second locking receiving portion 5e2.

The locking projection 8c is arranged inside the locking groove 3d2 of the side wall 3d of the fixed housing 3. As shown in FIG. Therefore, for example, when the lock arm 5a is pushed in from the mated connection state shown in FIG. 9B to release the lock and the operation housing 5 is pulled upward with respect to the movable housing 4, the fixed housing 3 is similarly pulled upward. Even if it tries to do so, the locking groove 3d2 abuts against the locking projection 8c, so that the fixed housing 3 can be held so as not to be pulled up.

Explanation of the operation of the movable connector 1

Next, the operation of fitting and connecting the pin terminal P2 to the movable connector 1 will be described.

As shown in FIGS. 6 and 7, the movable connector 1 is mounted on the substrate P1. The movable connector 1 shown in the figure shows an unconnected state before the operation housing 5 is pushed into the movable housing 4 . As shown in FIG. 10, the pin terminal P2 is arranged in the connection chamber 4e from this non-fitted connection state. The arrangement is performed by moving the pin terminals P2, moving the movable connector 1 and the board P1, or moving both.

The substrate P1 and the pin terminals P2 are non-movable members that do not move in the XY directions when the movable connector 1 is fitted and connected. The substrate P1 and the pin terminals P2 are fixed to an object to be attached which does not move relative to each other. Therefore, it is ideal that the insertion axes of the pin terminal P2 and the movable housing 4 match at the initial position before fitting connection. However, when the substrate P1 and the object to which the pin terminals P2 are attached are displaced, their insertion axes are displaced from each other. Even in such a case, the movable connector 1 can absorb displacement of the insertion shaft by displacing the movable housing 4 by pressing the operation housing 5 at the time of mating connection. Therefore, it is possible to fit and connect the movable connector 1 and the pin terminal P2 while absorbing the positional deviation. This point will be described below.

First fitting connection example between movable connector 1 and pin terminal P2 [Figs. 10 to 12]

First, fitting connection when the insertion axis of the movable connector 1 (movable housing 4) and the pin terminal P2 is not displaced will be described. As shown in FIG. 10, the pin terminal P2 is arranged in the insertion hole 4d1 of the movable housing 4. As shown in FIG. At this time, the pin terminal P2 is arranged along the hole surface of the insertion hole 4d1 on the side of the contact portion 6e.

When the pin terminal P2 is inserted into the connection chamber 4e, the pin terminal P2 presses the contact portion 6e leftward in the drawing as shown in FIG. However, the contact portion 6e is not elastically deformed, or is elastically deformed only slightly. At this time, the contact portion 6e does not generate contact pressure with the pin terminal P2, or is in contact with the pin terminal P2 with a slight contact pressure. Therefore, the insertion force of the pin terminal P2 elastically deforms the movable portion 6c leftward in the figure. That is, the spring constant of the movable portion 6c is lower than the spring constant of the contact portion 6e, and when the pressing force of the pin terminal P2 acts, the movable portion 6c is elastically deformed first as shown in FIG.

When the movable portion 6c is elastically deformed in a direction crossing the insertion direction of the pin terminal P2 (backward in the Y direction), the movable housing 4, in which the movable housing fixing portion 6d is fixed to the movable side terminal fixing portion 4b2, moves leftward in the figure. is pulled and displaced. FIG. 11 shows the movable housing 4 after displacement.

Subsequently, the operation housing 5 is pushed downward in the Z direction. The operation housing 5 moves along the side wall 4c of the movable housing 4 with the insertion guide portion 5e3 on the inner surface of the side wall 5e. Further, the operation housing 5 moves along the lock recess 4a1 of the movable housing 4 with the lock arm 5a. Further, the operation housing 5 moves while the contact surface 5b1 of the insertion pressing portion 5b moves along the pressure receiving surface 4a6 of the front wall 4a located below the locking recess 4a1 of the movable housing 4. As shown in FIG. In addition, the operation housing 5 is arranged such that the protruding surface 5b5 of the partition wall 5b4 that partitions the adjacent arrangement recesses 5b2 of the insertion pressing portion 5b follows the protruding surface 4b5 of the partition wall 4b4 that partitions the adjacent terminal arrangement grooves 4b1 of the movable housing 4. Moving. As described above, the operation housing 5 is pushed inside the movable housing 4 while being guided by the movable housing 4 at a plurality of points.

When the insertion portion 5b3 of the insertion pressing portion 5b reaches the tip of the pin terminal P2, the insertion pressing portion 5b is inserted between the pin terminal P2 and the pressure receiving surface 4a6 of the connection chamber 4e. Then, the insertion pressing portion 5b presses the pressure receiving surface 4a6 forward in the Y direction while being in sliding contact with the pressure receiving surface 4a6. As a result, the movable housing 4 displaceably supported by the movable portion 6c is displaced forward in the Y direction. Then, when the movable housing 4 is displaced, the contact portion 6e approaches the pin terminal P2 and press-contacts with stronger contact pressure. As a result, the operation housing 5 is fitted and connected to the movable housing 4 as shown in FIG.

Therefore, when the pin terminal P2 is arranged in the connection chamber 4e of the movable housing 4, the movable connector 1 is not subjected to a pressing force (contact pressure) from the contact portion 6e, or if it is subject to a little pressing force. . Therefore, in the movable connector 1, the arrangement structure of the pin terminals P2 with respect to the connection chamber 4e can be configured as a LIF (Light Insertion Force) structure in which the insertion force is small or a ZIF (Zero Insertion Force) structure in which the insertion force is zero. . Therefore, the movable connector 1 can easily insert the pin terminal P2 into the connection chamber 4e.

12, the lock projection 5a1 of the lock arm 5a is locked to the first retaining locking portion 4a3 of the movable housing 4. As shown in FIG. Further, the holding spring 8b of the substrate fixing member 8 contacts the first locking receiving portion 5e1 of the operation housing 5 so as to press it. Therefore, the operation housing 5 is maintained in a fitted connection state so as not to be removed from the movable housing 4 .

12, the operation housing 5 and the movable housing 4 are not in contact with the fixed housing 3 in the fitting connection state where the operation housing 5 has been completely pushed. Therefore, the operation housing 5 and the movable housing 4 can be displaced in the XYZ directions.

A second fitting connection example between the movable connector 1 and the pin terminal P2 [FIGS. 13 to 15]

In the second fitting connection example, as compared with the first fitting connection example, the initial position of the pin terminal P2 is shifted forward in the Y direction of the insertion hole 4d1 of the movable housing 4 as shown in FIG. there is In this case, as shown in FIG. 14, the contact portion 6e is only slightly elastically deformed, the movable portion 6c is hardly elastically deformed, and the movable housing 4 is hardly displaced.

When the operation housing 5 is pushed in, the insertion pressing portion 5b is inserted between the pin terminal P2 and the pressure receiving surface 4a6 of the connection chamber 4e. Then, the insertion pressing portion 5b presses the pressure receiving surface 4a6 forward in the Y direction while being in sliding contact with the pressure receiving surface 4a6. As a result, the movable portion 6c and the movable housing 4 are displaced forward in the Y direction. Then, when the movable housing 4 is displaced, the contact portion 6e approaches the pin terminal P2 and press-contacts with stronger contact pressure. As a result, the operation housing 5 is fitted and connected to the movable housing 4 as shown in FIG.

Although FIG. 13 shows an example in which the initial position of the pin terminal P2 is displaced forward in the Y direction of the insertion hole 4d1 of the movable housing 4, even if the initial position is displaced rearward in the Y direction, the misalignment is similarly absorbed. can be mated and connected.

Therefore, according to the movable connector 1, even if the relative insertion positions of the movable connector 1 and the pin terminal P2 are misaligned in the cross direction (Y direction), the movable housing 4 supported by the movable portion 6c is displaced. , can absorb its misalignment.

Modification

In the above-described embodiment, a bottom-entry type connector is exemplified as the movable connector 1, but other connectors may be used. Also, although the pin terminal P2 is shown as the object to be connected, a flat conductor such as FPC or FFC may be used instead of the pin terminal P2.

In the above-described embodiment, an example in which the continuity detection terminal 7 is provided in the placement recessed portion 5b2 of the operation housing 5 is shown, but the movable connector 1 may not include the continuity detection terminal 7. FIG.

1 movable connector 2 housing 3 fixed housing (first housing)
3a peripheral wall 3b front wall 3b1 locking recess 3c rear wall 3c1 locking recess 3c2 fixed side terminal fixing portion 3d side wall 3d1 board fixing member fixing portion 3d2 locking groove 3e accommodation space 3f recess 4 movable housing (second housing)
4a front wall 4a1 lock recess 4a2 lock hole 4a3 first retaining portion 4a4 locking projection 4a5 engagement guide projection 4a6 pressure receiving surface 4b rear wall 4b1 terminal arrangement groove 4b2 movable side terminal fixing portion 4b3 locking projection 4b4 partition wall 4b5 projecting surface 4c side wall 4d bottom wall 4d1 insertion hole 4d2 guiding inclined surface 4e connection chamber 5 operation housing (pressing member)
5a lock arm 5a1 lock protrusion 5b insertion pressing portion 5b1 abutment surface 5b2 arrangement recess 5b3 insertion portion 5b4 partition wall 5b5 projecting surface 5c cover portion 5c1 pair of side wall portions 5c2 front wall portion 5c3 upper wall portion 5d engagement guide portion 5d1 pair of elasticity Arm 5d2 Second locking portion 5e Side wall 5e1 First locking receiving portion 5e2 Second locking receiving portion 5e3 Insertion guide portion 5f Rear wall 5g Top wall 5g1 Opening 6 Terminal 6a Board connecting portion 6b Fixed housing Fixed part for movable housing 6c Movable part 6c1 Outer vertical piece 6c2 Folded bent part 6c3 Inner vertical piece 6d Fixed part for movable housing 6e Contact part 6e1 Front contact part 6e2 Rear contact part 6e3 Front elastic arm 6e4 Front contact part 6e5 Rear elastic arm 6e6 Rear contact portion 7 Continuity detection terminal 7a Internal contact portion 7b External contact portion 8 Board fixing member 8a Board fixing part 8b Holding spring 8c Locking projecting piece P1 Board P1a Hole P2 Pin terminal (object to be connected)

Claims (10)

a first housing that secures to the substrate;
a second housing having a connection chamber into which the connection object is inserted;
A movable connector comprising a terminal disposed in the connection chamber and having a contact portion that conducts contact with the object to be connected, and a movable portion that supports the second housing displaceably with respect to the first housing. in
further comprising a pressing member that presses the second housing in a direction crossing the direction of insertion of the object to be connected into the connection chamber;
The pressing member has a pre-fitting position that does not press the second housing in which the object to be connected is arranged in the connection chamber, and a position that presses the second housing in which the object to be connected is arranged in the connection chamber. It is configured to be displaceable between the mating connection position where
When the second housing is pressed by the pressing member, the second housing is relatively displaced in the cross direction with respect to the connection object,
The movable connector according to claim 1, wherein the contact portion presses into contact with the object to be connected while increasing contact pressure with the relative displacement of the second housing. a first housing that secures to the substrate;
a second housing having a connection chamber into which the connection object is inserted;
A movable connector comprising a terminal disposed in the connection chamber and having a contact portion that conducts contact with the object to be connected, and a movable portion that supports the second housing displaceably with respect to the first housing. in
further comprising a pressing member that presses the second housing in a direction crossing the direction of insertion of the object to be connected into the connection chamber;
The object to be connected is inserted into the connection chamber,
The pressing member is configured such that the object to be connected is pressed into the second housing arranged in the connection chamber,
When the second housing is pressed by the pressing member, the second housing is relatively displaced in the cross direction with respect to the connection object,
The movable connector according to claim 1, wherein the contact portion presses into contact with the object to be connected while increasing contact pressure with the relative displacement of the second housing. a first housing that secures to the substrate;
a second housing having a connection chamber into which the connection object is inserted;
A movable connector comprising a terminal disposed in the connection chamber and having a contact portion that conducts contact with the object to be connected, and a movable portion that supports the second housing displaceably with respect to the first housing. in
further comprising a pressing member that presses the second housing in a direction crossing the direction of insertion of the object to be connected into the connection chamber;
When the second housing is pressed by the pressing member, the second housing is relatively displaced in the cross direction with respect to the connection object,
the contact portion presses into contact with the object to be connected while increasing the contact pressure with the relative displacement of the second housing;
A retaining spring is provided to prevent the pressing member from being displaced toward the second housing by locking the pressing member at a pre-fitting position where the pressing member does not press the second housing. A movable connector characterized by: a substrate fixing member for fixing the first housing to the substrate;
4. The movable connector according to claim 3, wherein said board fixing member has said holding spring and a board fixing portion fixed to said board. The pressing member is fixed to the second housing by being pushed into the second housing, and the fitting connection state in which the contact portion is in pressing contact with the connection object is realized. The movable connector according to any one of claims 1 to 4, which is held. The pressing member has an insertion pressing portion that is inserted between the object to be connected arranged in the connection chamber and an inner surface of the second housing to press the second housing. Item 5. The movable connector according to any one of items 5. 7. The movable connector according to claim 6, wherein said insertion pressing portion has a placement recess extending along said insertion direction on a surface facing said connection object and for arranging said connection object. 8. The movable connector according to any one of claims 1 to 7, further comprising a continuity detection terminal arranged in the pressing member and electrically connected to the object to be connected arranged in the connection chamber. a conduction detection terminal arranged in the pressing member and electrically connected to the connection object arranged in the connection chamber;
8. The movable connector according to claim 7, wherein said continuity detection terminal is arranged in said arrangement recess. 10. The movable connector according to claim 8, wherein said continuity detection terminal has an external contact portion arranged on the outer surface of said pressing member.

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