JP7393879B2 - movable connector - Google Patents

Description

The present invention relates to a movable connector, and particularly to a movable connector suitable for large current applications.

A plurality of terminals each having a fixed housing, a movable housing that fits and connects with a connection target, a contact part that makes conductive contact with the connection target, and a movable part that supports the movable housing so as to be displaceable with respect to the fixed housing. A movable connector is known. In a movable connector, the movable part located in the area between the fixed housing and the movable housing undergoes elastic deformation, causing the movable housing to be displaced relative to the fixed housing, thereby preventing misalignment when mating with the object to be connected. It is structured so that it can absorb The movable housing has a locking piece that restricts displacement of the movable housing in the direction in which the connection target is removed by coming into contact with the fixed housing side. Among these, a movable connector is known in which a locking piece of a movable housing is provided closer to the removal direction than a movable portion of a terminal, as shown in Patent Document 1, for example.

Utility Model Application Publication No. 05-023465, Figure 1

For example, when a large current is applied to the terminal, the amount of heat generated increases. At this time, heat tends to be trapped in the internal space of the movable connector that accommodates the terminals that are the source of heat. For example, if the locking piece is located on the removal direction side of the movable part, and the locking piece acts as a barrier between the movable part of the terminal and the external space of the movable connector, the movable connector The heat accumulated in the internal space becomes difficult to dissipate. Therefore, the reliability of the movable connector deteriorates.

On the other hand, in order to avoid this problem, it is also possible to consider a configuration in which the locking piece is provided closer to the fitting direction of the connection target than the movable part. In this case, locking pieces can be provided, for example, on the side walls of the movable housing on both outer sides in the direction in which the terminals are arranged. However, in such a configuration, it is necessary to form a hole or the like in the side wall of the fixed housing to contact the locking piece. In this case, the strength of the side wall of the fixed housing tends to decrease, and the position where the fixing member to the board of the movable connector is provided is restricted. Furthermore, a displacement allowance for the locking piece that passes through the side wall of the fixed housing is required, making the movable connector larger in the direction in which the terminals are arranged, and making it impossible to arrange electronic components around the movable connector.

The present invention has been made against the background of the above-mentioned prior art. An object of the present invention is to improve heat dissipation of a movable connector.

In order to achieve the above object, the present invention has the following features.

That is, the present invention provides a first housing that is attached to a substrate, a second housing that fits and connects to a connection target, a contact portion that makes conductive contact with the connection target, and a first housing that connects the second housing to the second housing. a terminal having a movable part displaceably supported with respect to the first housing; a housing space for the second housing and the terminal; The second housing has a first engaging portion extending in a direction crossing the fitting direction, and the second housing prevents displacement of the second housing in a removal direction, which is a direction opposite to the fitting direction, from the first engagement portion. In the movable connector, the movable connector has a second engaging part that contacts and regulates the joint part, and the second engaging part has a heat radiation part through which heat in the housing space convects to an external space. It is characterized by

Heat generated from the terminals tends to be trapped in the accommodation space in which the movable part is accommodated. However, the second engaging portion in the movable connector of the present invention has a heat dissipation portion that can flow heat within the housing space to the external space. Therefore, according to the present invention, the heat within the housing space can be dissipated to the outside of the movable connector through the heat dissipation section.

The heat dissipation section can be configured with a through hole that passes through the second engagement section.

According to the present invention, since the heat dissipation section is constituted by a through hole passing through the second engaging section, the heat dissipation section can be easily formed, and although the structure is relatively simple, the movable connector can be easily formed. Heat dissipation can be improved.

The second engaging portion may include a plurality of engaging protrusions, and the heat dissipating portion may be provided between the engaging protrusions adjacent in the cross direction.

According to the present invention, since the second engaging portion is constituted by a plurality of engaging protrusions, the weight is reduced compared to a case where the second engaging portion is, for example, a single large engaging piece. Heat within the housing space can be radiated to the outside from the heat radiating portion formed between adjacent engaging protrusions.

The second housing may be configured to have an engaging protrusion connecting portion that connects the engaging protrusions that are adjacent to each other in the cross direction.

The second housing of the present invention has an engaging protrusion connecting portion that connects adjacent engaging protrusions forming the second engaging portion. Therefore, according to the present invention, it is possible to strengthen the structure of the engaging protrusion and dissipate the heat within the housing space to the outside.

The second engaging portion can be configured to be located closer to the removal direction than the movable portion.

Normally, in the case of a structure in which the second engaging part is located on the side in the removal direction of the connection object than the movable part of the terminal, there is no engagement between the movable part of the terminal and the external space of the movable connector. The stopper piece acts as a barrier, making it difficult for the heat accumulated in the interior space of the movable connector to be dissipated. However, according to the present invention, since the second engaging part has a heat radiation part, even in a movable connector having such a structure, the heat in the accommodation space can be transmitted to the outside of the movable connector without any problem. can do. Moreover, according to the present invention, since the second engaging part is located on the side of the movable part in the removal direction of the connection target, for example, the locking piece is attached to the side wall of the movable housing on both outer sides in the terminal arrangement direction. Therefore, there is no need to form a hole or the like in the side wall of the fixed housing to contact the locking piece. Therefore, the strength of the side wall of the fixed housing is not easily reduced, and the position where the fixing member of the movable connector to the board is provided is not restricted. Furthermore, since there is no need for displacement of the locking piece that passes through the side wall of the fixed housing, the movable connector does not become larger in the direction in which the terminals are arranged, and electronic components can be arranged around the movable connector without any problem.

At least a part of the movable part may be configured to overlap with the heat radiating part when viewed from the fitting direction.

A part of the movable part of the present invention is located so as to overlap the heat radiation part when viewed from the fitting direction. Therefore, there is no obstacle to heat convection between the part of the movable part and the heat radiating part. Therefore, according to the present invention, it is possible to dissipate the heat generated in the housing space, especially from the movable part among the terminals, to the outside.

The movable part has a folded part on the removal direction side, and the folded part can be configured to be positioned offset from the heat radiation part when viewed from the fitting direction.

The folded portion of the movable portion of the present invention is located away from the heat radiation portion when viewed from the fitting direction. Therefore, the folded portion is not exposed beyond the heat dissipation portion when viewed from the fitting direction. Therefore, according to the present invention, even if a foreign object or the like passes through the heat dissipation part, it will not hit the folded part, thereby preventing the movable part from being damaged.

The first housing has an exposed part that communicates with the heat radiating part and exposes the heat radiating part to the outside of the first housing, and the first housing has an exposed part that communicates with the heat radiating part and exposes the heat radiating part to the outside of the first housing. At least a portion of the exposed portion may be configured to overlap with the heat radiating portion that is displaced together with the second housing.

The first housing of the present invention has an exposed portion that communicates with the heat radiating portion and exposes the heat radiating portion to the outside of the first housing. The movable connector is formed such that, no matter how much the heat dissipation section is displaced within the movable range of the second housing relative to the first housing, at least a portion of the exposed section overlaps the heat dissipation section when viewed from the mating direction. has been done. Therefore, in the movable connector, the entire area of the heat dissipation section is not covered and hidden by the first housing due to displacement of the second housing with respect to the first housing. Therefore, according to the present invention, regardless of the displacement position of the second housing with respect to the first housing, the heat in the housing space can be radiated to the outside of the movable connector through the heat radiating portion.

The first housing may be configured to include an erroneous insertion prevention portion that partially covers the exposed portion to prevent erroneous insertion of the connection target.

An incorrect insertion prevention portion is formed in the exposed portion of the first housing of the present invention. The erroneous insertion prevention part divides the exposed part, for example, and makes the cross-sectional area of each divided area smaller than the cross-sectional area of the connection target. Therefore, the object to be connected does not pass through the exposed portion, and erroneous insertion into the movable connector is prevented.

The erroneous insertion prevention part extends along the extension direction of the terminal and divides the exposed part into individual exposure holes, and at least a part of the movable part is arranged in the exposure hole when viewed from the fitting direction. It can be configured so that it overlaps with the

A part of the movable part of the present invention is located so as to overlap the exposure hole when viewed from the fitting direction. Therefore, a path through which heat convects is formed between a portion of the movable portion and the exposed hole. Therefore, according to the present invention, it is possible to dissipate the heat generated in the housing space, especially from the movable part among the terminals, to the outside.

The first housing may include a wall surrounding the housing space, and the wall may include a window that communicates the housing space with the external space.

The wall portion of the first housing of the present invention, which is configured to surround the housing space, has a window portion that communicates the housing space with the external space. Therefore, by supplying air from the external space to the housing space using the window as an air supply port, it is possible to create a flow of air from the housing space to the external space via the heat radiating part. Therefore, according to the present invention, heat within the housing space can be dissipated to the outside using air supplied from the window.

The second engaging portion may be configured to extend along the extending direction of the movable portion.

The second engaging portion of the present invention extends along the extending direction of the movable portion. Therefore, it is not necessary to form the second engaging portion so as to extend in the direction in which the movable portion, that is, the terminals are arranged. Therefore, the movable connector can be downsized in the terminal arrangement direction. Furthermore, the second engaging portion extends longer in the extending direction of the movable portion than in other directions. Therefore, according to the present invention, it is possible to ensure a longer engagement distance between the first engagement part and the second engagement part, and the second engagement part that is displaced in the withdrawal direction is connected to the first engagement part. It is possible to disperse the stress caused by contact with the engaging portion of the connector.

According to the present invention, heat within the housing space can be dissipated to the outside of the movable connector through the heat dissipation section.

FIG. 2 is an external perspective view including the front, right side, and plan view showing the movable connector according to the first embodiment. FIG. 2 is a plan view of the movable connector in FIG. 1; FIG. 3 is a sectional view taken along line III-III in FIG. 2. FIG. 3 is a sectional view taken along the line IV-IV in FIG. 2. FIG. 2 is a plan view showing the housing of the movable connector in FIG. 1 in an undisplaced state; FIG. 2 is a plan view showing a state in which the housing of the movable connector in FIG. 1 is displaced to the maximum extent; FIG. 2 is an external perspective view including the front, right side, and plan view showing the movable housing included in the movable connector of FIG. 1; FIG. 7 is an external perspective view including the front, right side, and plan view showing the movable connector according to the second embodiment. FIG. 9 is an external perspective view including the front, right side, and bottom surfaces of the movable housing included in the movable connector of FIG. 8; FIG. 7 is an external perspective view including the front, right side, and plan view showing a movable housing included in a movable connector according to a third embodiment.

Embodiments of the present invention will be described below with reference to the drawings. A socket connector 1 as an embodiment of the "movable connector" of the present invention is mounted on a circuit board P1 (see FIG. 3, etc.) as a "board". The socket connector 1 is fitted and connected to a plug connector (not shown) serving as a "connection object" to establish conductive connection with the circuit board P1.

When "first" and "second" are written in this specification and claims, they are used to distinguish between different constituent elements of the invention, and are used to indicate a specific order or superiority or inferiority. It is not intended for use in In this specification and claims, for convenience, the width direction (left and right direction) of the socket connector 1 is referred to as the direction) is described as the Z direction. The side of the circuit board P1 in the Z direction of the socket connector 1 is referred to as the lower side, and the side of the socket connector 1 is referred to as the upper side. However, these do not limit the direction of fitting and connection of the socket connector 1 etc. or the manner of mounting on the circuit board P1. In the socket connector 1 here, the "terminal arrangement direction" is the X direction, the "terminal extension direction" and the "contact direction with the connection object" are the Y direction, and the "fitting direction of the connection object" is the Z direction. It is arranged so that the "removal direction of the connection target" is directed upward in the Z direction.

First embodiment [Figures 1 to 7]

Configuration of socket connector 1 [Figures 1 to 7]

As shown in FIG. 1 and the like, the socket connector 1 includes a fixed housing 2 as a "first housing", a movable housing 3 as a "second housing", and a plurality of terminals 4. This socket connector 1 is mounted on an upper surface P2 serving as a "board surface" which is one surface of a circuit board P1 arranged along the X direction and the Y direction. The socket connector 1 is configured such that the movable housing 3 is movable relative to the fixed housing 2. The plug connector is configured such that its fitting direction with the socket connector 1 is downward in the Z direction approaching the upper surface P2 of the circuit board P1, and the plug connector is fitted from above the socket connector 1 so that the respective contacts are electrically connected to each other. has been done.

Fixed housing 2

The fixed housing 2 is formed of a resin molded body. As shown in FIG. 1 and the like, the fixed housing 2 is formed in the shape of a hollow rectangular parallelepiped that is shortest in the Z direction and slightly longer in the X direction than in the Y direction. The fixed housing 2 is arranged on the upper surface P2 of the circuit board P1. The fixed housing 2 is fixed to the circuit board P1 by a fixing fitting 5 which is formed by folding a plate into two and is L-shaped when viewed from the front. The fixed housing 2 has fixing fitting attachment portions 2b each extending in the Z direction in a groove shape at four corner positions in a plan view. The fixing fitting 5 is fixed to the fixed housing 2 by press-fitting the L-shaped plate piece on one side from the lower end side of the fixing fitting attachment part 2b, and fixing the plate piece on the other side of the L-shape by soldering or the like. It is configured to be fixed to the circuit board P1.

The hollow fixed housing 2 has an accommodation space 2a therebetween and is attached to the circuit board P1 between the hollow fixed housing 2 and the upper surface P2 of the circuit board P1. The movable housing 3 and the terminals 4 are accommodated in the accommodation space 2a. As will be described later, the movable housing 3 has a movable engaging portion 3a as a “second engaging portion”, and a heat dissipation portion 3b is formed in the movable engaging portion 3a. (See Figures 5 and 6). As will be described later, the terminal 4 includes a movable portion 4c that is accommodated in the accommodation space 2a and supports the movable housing 3 so as to be movable relative to the fixed housing 2 (see FIG. 3, etc.).

The fixed housing 2 has a front wall part 2c as a flat plate-shaped "wall part" that forms a hollow rectangular parallelepiped-shaped exterior and surrounds the housing space 2a, a rear wall part 2d as a "wall part", and a rear wall part 2d as a "wall part". It has horizontal wall parts 2e, 2e as "wall parts" and upper wall parts 2f, 2f as "wall parts". The front wall portion 2c located at the front in the Y direction and the rear wall portion 2d located at the rear in the Y direction both extend along the X direction and the Z direction. The horizontal wall portions 2e, 2e located on the left and right outer sides in the X direction are both along the Y direction and the Z direction, and connect the front wall portion 2c and the rear wall portion 2d. Upper wall portions 2f and 2f located at the front and rear in the Y direction are connected to the upper end of the front wall portion 2c and the upper end of the rear wall portion 2d, respectively. The upper wall portions 2f, 2f both extend along the X direction and the Y direction, and both connect the left and right horizontal wall portions 2e, 2e.

An upper surface opening 2g having a rectangular periphery in plan view is formed on the upper surface of the fixed housing 2. The periphery of the upper surface opening 2g is constituted by front and rear upper walls 2f, 2f and left and right horizontal walls 2e, 2e. The upper part of the movable housing 3 accommodated in the accommodation space 2a is exposed to the outside through the upper surface opening 2g. The fixed housing 2 restricts the displacement of the movable housing 3 in the Y direction by the front and rear upper walls 2f, 2f that form the periphery of the top opening 2g, and the left and right lateral walls that form the periphery of the top opening 2g. The portions 2e, 2e restrict displacement of the movable housing 3 in the X direction.

The upper wall portions 2f, 2f also function as "first engaging portions." That is, the fixed housing 2 has upper wall portions 2f and 2f extending in the X direction and the Y direction, which are directions intersecting the fitting direction of the plug connector. The upper wall portions 2f, 2f are in contact with the movable engaging portion 3a of the movable housing 3, and the plug is directed upward in the Z direction of the movable housing 3 relative to the fixed housing 2, that is, in the opposite direction to the fitting direction of the plug connector. It has a function of regulating the displacement of the connector in the removal direction.

The fixed housing 2 has an exposed portion 2h on the upper wall portions 2f, 2f, which communicates with the heat radiating portion 3b of the movable housing 3 and exposes the heat radiating portion 3b to the outside of the fixed housing 2. Here, the heat radiating portion 3b is displaced as the movable housing 3 is displaced with respect to the fixed housing 2. On the other hand, in the socket connector 1, no matter how much the heat radiating part 3b is displaced within the movable range of the movable housing 3 relative to the fixed housing 2, at least a part of the exposed part 2h is formed so as to overlap the heat radiating part 3b in plan view. has been done. Therefore, in the socket connector 1, the entire area of the heat dissipation section 3b is not covered and hidden by the fixed housing 2 due to displacement of the movable housing 3 with respect to the fixed housing 2. Therefore, according to this embodiment, regardless of the displacement position of the movable housing 3 with respect to the fixed housing 2, the heat in the housing space 2a can be radiated to the outside of the socket connector 1 through the heat radiating portion 3b.

For example, as shown in FIG. 5, the socket connector 1 of this embodiment has two exposed parts 2h and two heat radiating parts 3b on the front side and the rear side. When the movable housing 3 is not displaced with respect to the fixed housing 2, the inner region of each exposed portion 2h in the Y direction overlaps with the outer region of each heat radiating portion 3b in the Y direction.

On the other hand, as shown in FIG. 6, when the movable housing 3 is displaced to the maximum extent of its movable range in the X and Y directions with respect to the fixed housing 2, the two front exposed parts 2h and the heat radiating part 3b are The two do not overlap. However, both of the two exposed parts 2h on the rear side overlap the heat radiating part 3b.

In this way, no matter how the movable housing 3 moves with respect to the fixed housing 2, the socket connector 1 is configured such that the heat dissipation section 3b is exposed in at least a portion of the exposed section 2h in plan view. There is. Therefore, according to this embodiment, regardless of the displacement position of the movable housing 3 with respect to the fixed housing 2, the heat in the housing space 2a can be radiated to the outside of the socket connector 1 through the heat radiating portion 3b.

More specifically, the exposed portion 2h is constituted by an exposure hole 2i passing through the upper wall portions 2f, 2f in the Z direction. A partition wall 2j serving as a "misinsertion prevention section" is formed in the exposed portion 2h to extend in the Y direction. That is, the exposed portion 2h has an exposure hole 2i and a partition wall 2j, both of which extend in the Y direction. The partition wall 2j has a function of partially covering the exposed portion 2h to prevent incorrect insertion of the plug connector. The partition wall 2j partitions the exposed portion 2h, for example, and makes the cross-sectional area of each partitioned exposure hole 2i smaller than the cross-sectional area of the tip of the plug connector. Therefore, the plug connector does not pass through the exposed portion 2h, and incorrect insertion into the socket connector 1 is prevented.

Each of the "walls" that constitute the exterior of the fixed housing 2 and surround the accommodation space 2a may have a "window" that communicates the accommodation space 2a with the external space. In this embodiment, the front wall part 2c and the upper wall part 2f and the rear wall part 2d and the upper wall part 2f have an extension direction side window part 2k as a "window part", and the lateral wall part 2e has a "window part". It has a window section 2l on the side in the arrangement direction as a "window section".

The extension direction side window part 2k on the side of the front wall part 2c extends forward along the Y direction continuously from the exposure hole 2i formed in the front upper wall part 2f, and extends from the upper end of the front wall part 2c. It extends downward along the Z direction. The extension direction side window part 2k on the side of the rear wall part 2d extends rearward along the Y direction continuously from the exposure hole 2i formed in the upper wall part 2f on the rear side, and extends from the upper end of the rear wall part 2d. It extends downward along the Z direction. The extension direction side window part 2k has a length of about 70% of the total height of the front wall part 2c and the rear wall part 2d.

The extension direction side window portions 2k are provided on the front wall portion 2c and the rear wall portion 2d, which are close to the terminals 4. Therefore, air can be supplied from near the individual terminals 4 in the extension direction side window portion 2k. In the extension direction side window portion 2k, outside air can be directly introduced particularly toward the terminal 4 located on the center side in the X direction. By introducing relatively low temperature outside air near the terminal 4, which is the heat generation source, a temperature difference is created between the air warmed by the heat of the terminal 4 and the air inside the housing space 2a. , natural convection can easily occur. Therefore, by providing the extension direction side window part 2k on at least one of the front wall part 2c and the rear wall part 2d, the heat in the accommodation space 2a is transferred to the outside by using the air supplied from the extension direction side window part 2k. can be dissipated.

The arrangement direction side window portion 2l extends upward along the Z direction from the lower end of the horizontal wall portion 2e. The arrangement direction side window portion 2l has a length of about 60% of the total height of the horizontal wall portion 2e. The arrangement direction side window portion 2l has a width approximately 2.5 times that of the extension direction side window portion 2k. The arrangement direction side window portion 2l is formed in the horizontal wall portion 2e relatively far from the terminal 4. Therefore, there is a low possibility that a finger, a jig, or the like will come into contact with the terminal 4 from the outside through the arrangement direction side window portion 2l formed in the horizontal wall portion 2e. Therefore, the arrangement direction side window portion 2l can be formed in the horizontal wall portion 2e with a large cross-sectional area, and outside air can be introduced from the outside space into the accommodation space 2a at a large flow rate. Therefore, by providing the arrangement direction side window part 2l on at least one of the horizontal wall parts 2e, 2e, it is possible to dissipate the heat in the accommodation space 2a to the outside by using the air supplied from the arrangement direction side window part 2l. can.

As described above, the front wall part 2c and the upper wall part 2f and the rear wall part 2d and the upper wall part 2f have the extension direction side window part 2k, and the horizontal wall part 2e has the arrangement direction side window part 2l. have. Therefore, by supplying air from the external space to the accommodation space 2a by using at least one of the extension direction side window part 2k and the arrangement direction side window part 2l as an air supply port, air is supplied from the accommodation space 2a to the external space via the heat dissipation part 3b. and can create air flow. Therefore, according to the present invention, the heat within the accommodation space 2a can be more efficiently dissipated to the outside.

On the inner surface (accommodating space 2a) side of the front wall part 2c and the rear wall part 2d, a fixed side terminal holding part 2m, which is a groove extending upward from the lower end in the Z direction, is formed along the X direction. The fixed terminal holding portion 2m has a function of holding the terminal 4.

The lower ends of the front wall portion 2c and the rear wall portion 2d are spaced apart from the upper surface P2 of the circuit board P1 in the region where the fixed side terminal holding portion 2m is formed. That is, the external space and the accommodation space 2a communicate with each other below the fixed terminal holding portion 2m. Therefore, in the socket connector 1, even if the extension direction side window part 2k and the arrangement direction side window part 2l are not formed, the socket connector 1 can be accessed from the accommodation space 2a from the gap between the fixed side terminal holding part 2m and the upper surface P2. Outside air can be brought in.

A plurality of such fixed side terminal holding parts 2m are formed in line along the X direction on each of the front wall part 2c and the rear wall part 2d. In this embodiment, since the socket connector 1 has two terminals 4 at the front and rear, two fixed-side terminal holding parts 2m are also formed on the front wall part 2c and the rear wall part 2d, respectively.

Movable housing 3

The movable housing 3 is formed of a resin molded body. As shown in FIGS. 1, 7, etc., the movable housing 3 is formed into a hollow rectangular parallelepiped shape that is longer in the X direction than in other directions, corresponding to the fixed housing 2. The movable housing 3 is disposed so as to be displaceable with respect to the fixed housing 2, and is configured to fit into and connect with a plug connector.

The movable housing 3 constitutes a hollow rectangular parallelepiped-shaped exterior, and has a flat front wall 3c, a back wall 3d, side walls 3e, 3e, and a top wall 3f. The front wall 3c located at the front in the Y direction and the back wall 3d located at the rear in the Y direction are along the X direction and the Z direction so as to face each other. Side walls 3e, 3e located on both the left and right outer sides in the X direction are along the Y direction and the Z direction so as to face each other, and connect the front wall 3c and the back wall 3d. The top wall 3f located above in the Z direction is connected to the upper end of the front wall 3c, the upper end of the rear wall 3d, and the upper ends of the side walls 3e, 3e.

The upper portions of the front wall 3c, the rear wall 3d, and the side walls 3e, 3e protrude above the upper surface opening 2g formed on the upper surface of the fixed housing 2. Since the front wall 3c and the back wall 3d come into contact with the front and rear upper walls 2f and 2f, which constitute the periphery of the upper surface opening 2g, respectively, excessive displacement of the movable housing 3 in the Y direction with respect to the fixed housing 2 is prevented. regulated. Similarly, excessive displacement of the movable housing 3 in the X direction with respect to the fixed housing 2 is restricted by the side walls 3e, 3e coming into contact with the left and right side walls 2e, 2e forming the periphery of the top opening 2g, respectively. ing.

Furthermore, the movable housing 3 of this embodiment has a partition wall 3g extending along the Y direction and the Z direction so as to connect the opposing front wall 3c and back wall 3d. A fitting chamber 3h for the plug connector is formed inside the movable housing 3 (see FIG. 3, etc.), and an opening formed at the upper end of the fitting chamber 3h serves as an insertion port 3i for the plug connector. . In this embodiment, the partition wall 3g divides the internal space of the movable housing 3 into two at the center in the X direction, and the movable housing 3 has two fitting chambers 3h and two insertion ports 3i along the X direction. ing.

An insertion guide surface 3j, which is an inclined surface in the shape of an inverted square pyramid, is formed between the upper ends of both the top wall 3f and the partition wall 3g and the lower ends (insertion port 3i) of both the top wall 3f and the partition wall 3g. There is. The insertion guiding surface 3j is a portion that guides the plug connector that fits into the movable housing 3 toward the insertion opening 3i and drops it into the fitting chamber 3h.

As shown in FIG. 3, the movable housing 3 has a movable engagement portion 3a serving as a “second engagement portion”. The movable side engaging portion 3a has a function of restricting displacement of the movable housing 3 relative to the fixed housing 2 in the Z direction upward, that is, in the removal direction of the plug connector, by contacting the upper wall portion 2f of the fixed housing 2. are doing. The movable engaging portion 3a is arranged in the accommodation space 2a in order to contact the lower surface side of the upper wall portion 2f located at the front and rear portions of the fixed housing 2 in the Y direction. Therefore, the movable engaging portion 3a is formed, for example, in front of the front wall 3c of the movable housing 3 and in the rear of the rear wall 3d.

As shown in FIG. 3, the movable engaging portion 3a is located above the movable portion 4c of the terminal 4 in the Z direction. The movable engaging portion 3a is arranged close to the upper wall portion 2f. Therefore, the movable engaging portion 3a is located between the movable portion 4c and the external space of the socket connector 1, and tends to act as a barrier when air flows from the housing space 2a to the external space. In this way, when the socket connector 1 has a structure in which the movable engaging portion 3a acts as a barrier between the movable portion 4c of the terminal 4 and the external space of the socket connector 1, the movable portion 4c is accommodated. Heat generated from the terminals 4 tends to be trapped in the housing space 2a.

On the other hand, the movable engaging portion 3a has a heat dissipation portion 3b through which heat within the accommodation space 2a convects to the external space. As a result, not only does the heat within the housing space 2a move between the housing space 2a and the external space by thermal conduction, but also the heated air within the housing space 2a moves directly to the external space through convection through the heat radiating portion 3b. Therefore, according to the present embodiment, the heat within the accommodation space 2a can be dissipated to the outside of the socket connector 1 through the heat dissipation portion 3b.

For example, the heat dissipation section 3b can be configured with a through hole that penetrates the flat movable side engagement section 3a in the plate thickness direction (Z direction). In this case, the heat dissipation portion 3b can be easily formed, and the heat dissipation performance of the socket connector 1 can be improved even though the structure is relatively simple. The hole surface of the heat dissipating portion 3b viewed from the Z direction may be circular or polygonal such as a quadrangle. The number of these heat radiating parts 3b may be one or more.

As shown in FIG. 7, the movable engaging portion 3a is composed of, for example, a plurality of engaging protrusions 3k. The engaging protrusion 3k extends above the center of the movable housing 3 in the Z direction, from the front wall 3c to the front in the Y direction, and from the back wall 3d to the rear in the Y direction. In this way, the engagement protrusion 3k of this embodiment extends along the Y direction, which is the direction in which the movable portion 4c extends. Therefore, it is not necessary to form the engaging protrusion 3k so as to extend in the X direction, which is the arrangement direction of the movable portion 4c, that is, the terminals 4. Therefore, the socket connector 1 can be downsized in the X direction.

Furthermore, the engagement protrusion 3k is formed into a rectangular prism shape that is longer in the Y direction than in other directions, and as shown in FIG. It has a length such that more than half overlaps with the upper wall portion 2f. According to such a socket connector 1, a longer engagement distance can be secured between the upper wall portion 2f and the engaging protrusion 3k, and the engaging protrusion 3k, which is displaced upward in the Z direction, is connected to the upper wall portion 2f. Stress caused by contact can be dispersed.

Three engaging protrusions 3k are formed in the front and rear in the Y direction. The three engaging protrusions 3k are arranged on both outer sides of the movable housing 3 in the X direction and at the center in the X direction. Both outer engaging protrusions 3k in the X direction are formed so that their outer surfaces are flush with the side wall 3e. As a result, when the movable housing 3 is largely displaced in the X direction with respect to the fixed housing 2, the engaging protrusion 3k hits the side wall 3e as well as the side wall 2e. Therefore, the engaging protrusion 3k can disperse the pressure of the movable housing 3 hitting the side wall portion 2e without interfering with regulating excessive displacement of the movable housing 3.

The upper surface of the engagement protrusion 3k is connected perpendicularly to the movable housing 3 when viewed from the side. As a result, even if the movable housing 3 is largely displaced either upward in the Z direction or in the Y direction, the upper wall portion 2f of the fixed housing 2 will receive it with its surface, and the pressure of the movable housing 3 hitting the upper wall portion 2f will be dispersed. I can do it. On the other hand, the lower surface of the engagement protrusion 3k is connected to the movable housing 3 via a quarter-circular curve in a side view. As a result, the connection base of the engagement protrusion 3k with the movable housing 3 becomes thick, and the strength of the engagement protrusion 3k can be ensured sufficiently.

As shown in FIG. 7 etc., the movable housing 3 of this embodiment has a structure in which the heat in the housing space 2a is transferred between the engaging protrusions 3k, 3k that constitute the movable engaging portion 3a and are adjacent in the X direction. It has a heat radiation part 3b that causes convection to the space. As shown in FIG. 3, the heat dissipation section 3b is formed to extend along the Z direction through the gap between the adjacent engagement protrusions 3k, 3k. The heat radiation part 3b becomes a flow path for air that is heated within the accommodation space 2a and moves upward. Heat in the accommodation space 2a is carried to the external space by convection passing through the heat radiating section 3b. According to such a socket connector 1, the heat in the accommodation space 2a can be dissipated to the outside through the flow path formed between the engagement protrusions 3k, 3k.

In the movable housing 3, the amount of resin used as a material is reduced by the amount by which the heat dissipation part 3b is formed, compared to a case where the movable side engagement part 3a is, for example, a large single engagement piece. Therefore, the movable housing 3 can also be made lighter by having the heat radiation part 3b.

As shown in FIG. 7 and the like, the movable housing 3 of this embodiment has an engaging protrusion connecting portion 3l that connects adjacent engaging protrusions 3k in the X direction. The engagement protrusion connecting portion 3l is formed into a square column shape that is longer in the X direction than in other directions. The engagement protrusion connecting portion 3l connects the respective tips of the engagement protrusions 3k and extends along the X direction. The engagement protrusion connecting portion 3l is formed so that its upper and lower surfaces are flush with the upper and lower surfaces of the engagement protrusion 3k, respectively. The engaging protrusion connecting portion 3l connects the respective tips of the engaging protrusions 3k, 3k while leaving the heat dissipating portion 3b in the movable housing 3. The hole surface of the heat radiation part 3b has a square shape with rounded corners on the side of the engaging protrusion connecting part 3l. According to such a socket connector 1, the heat in the accommodation space 2a can be dissipated to the outside while reinforcing the structure of the engagement protrusion 3k.

On the inner surfaces (fitting chamber 3h) of the front wall 3c and the rear wall 3d, movable terminal holding portions 3m are formed along the X direction, and are formed by grooves extending upward from the lower ends in the Z direction. The movable terminal holding section 3m has a function of holding the terminal 4.

A plurality of such movable terminal holding parts 3m are formed in line along the X direction on each of the front wall 3c and the back wall 3d. In this embodiment, since the socket connector 1 has two terminals 4 at the front and rear, two movable terminal holding parts 3m are also formed on the front wall 3c and the back wall 3d, respectively.

terminal 4

The socket connector 1 of this embodiment has two terminals 4 at the front and rear, respectively, as shown in FIGS. 2-4 and the like. All of these four terminals 4 have the same shape. Each of the four terminals 4 is arranged symmetrically about the centerline of the socket connector 1 in the X direction, and is also arranged symmetrically about the centerline in the Y direction. As shown in FIG. 3, these plurality of terminals 4 are attached to the socket connector 1 so that the board width direction is the X direction and the board surface is along the Y direction and the Z direction. Therefore, the plurality of terminals 4 are all arranged in the X direction and mainly extend in the Y direction. Here, one terminal 4 arranged on the rear side of the socket connector 1 will be explained. The terminals 4 disposed on the front side of the socket connector 1 are similar to the terminals 4 disposed on the rear side except that the front-to-back positional relationship is opposite.

As shown in FIG. 3 etc., the terminal 4 includes, in order from one end to the other end, a board connecting portion 4a, a fixed side held portion 4b, a movable portion 4c, and a movable side held portion. It has a portion 4d and a contact portion 4e. The terminal 4 of this embodiment is an electrical conductor formed as a punched terminal obtained by punching out a flat conductive metal piece by press working. Each functional part of the terminal 4 and its shape are integrally formed by bending a punched conductive metal piece. That is, the terminal 4 of this embodiment is formed as a single component.

The board connecting portion 4a is a portion that electrically connects and fixes the terminal 4 to the circuit board P1. The board connecting part 4a is located lower in the Z direction than other parts of the terminal 4. The board connecting portion 4a is fixed to the circuit board P1 by soldering or the like (see FIG. 3). The terminal 4 of this embodiment has five board connecting portions 4a each having a rectangular column shape that is longer in the Y direction than in other directions. Each of the five board connecting parts 4a is arranged at equal intervals along the X direction, and all of them extend along the Y direction.

The fixed-side held portion 4b is a portion held by the fixed-side terminal holding portion 2m of the fixed housing 2. The fixed side held part 4b is connected to the board connecting part 4a, and is located on the front side and above the board connecting part 4a. The fixed side held portion 4b extends along the XZ plane, and is formed into a flat plate shape that is longer in the X direction than in other directions. The fixed side held portion 4b is composed of a single rectangular portion when viewed from the front. Below one fixed side held part 4b, five board connecting parts 4a are arranged at equal intervals along the X direction, and each extends along the Y direction . The portions 4c are arranged at regular intervals along the X direction, and each extends along the Y direction .

The movable portion 4c is accommodated in the accommodation space 2a and has a function of supporting the movable housing 3 so as to be movable relative to the fixed housing 2. The movable portion 4c is formed in a horizontal S-shape when viewed from the side. The five movable parts 4c, which are arranged at equal intervals along the X direction and extend along the Y direction , all have the same shape.

The movable portion 4c extends forward in the Y direction and upward in the Z direction from the upper end of the fixed side held portion 4b. The movable part 4c has a folded part 4f that changes the direction of the terminal 4 extending upward from the fixed side held part 4b downward in the upper region in the Z direction. The folded portion 4f is located at the upper end of the movable portion 4c.

The folded portion 4f may be located offset from the heat radiation portion 3b of the movable housing 3 when viewed from the fitting direction, that is, when viewed from above. As shown in FIGS. 2 and 3, the folded portion 4f of this embodiment is positioned so as to overlap the engagement protrusion connecting portion 3l in plan view. Therefore, the folded portion 4f is not exposed beyond the heat dissipation portion 3b in plan view. Therefore, according to the socket connector 1 having such a configuration, even if a foreign object should pass through the heat dissipation part 3b, it will not hit the folded part 4f, thereby preventing damage to the movable part 4c. .

As shown in FIG. 3, the terminal 4 is bent twice downward in the Z direction and tapered from the folded portion 4f to the movable side held portion 4d when viewed from the side. The terminal 4 extends along the Y direction in the region from the folded part 4f to the movable side held part 4d, and as shown in FIG. There is. In this way, at least a part of the movable part 4c is located so as to overlap the heat radiating part 3b in plan view. Therefore, there is no obstacle to heat convection between a part of the movable part 4c and the heat radiation part 3b. Therefore, according to such a socket connector 1, the heat within the housing space 2a generated from the movable portion 4c of the terminals 4 can be quickly dissipated to the outside.

The movable side held portion 4d is a portion held by the movable side terminal holding portion 3m of the movable housing 3. The movable side held part 4d is connected to the movable part 4c and is located on the front side of the movable part 4c. The movable held portion 4d extends along the XZ plane, and is formed into a flat plate shape that is longer in the X direction than in other directions. The movable held portion 4d is composed of a single rectangular portion when viewed from the front. Below one movable side held part 4d, five movable parts 4c are arranged at equal intervals along the X direction, and each extends along the Y direction , and above, three contact parts 4e are arranged at equal intervals along the X direction, and each extends along the Z direction .

The contact portion 4e is accommodated in the fitting chamber 3h of the movable housing 3 when the movable held portion 4d is inserted into the movable terminal holding portion 3m, and is electrically connected to the plug connector. The contact portion 4e extends upward from the movable held portion 4d. The contact portion 4e has an elastic piece 4e1 and a sickle-shaped contact piece 4e2.

The elastic piece 4e1 is configured such that its upper part can be easily displaced in the front-rear direction with the lower part of the elastic piece 4e1 connected to the movable held part 4d as an axis. The sickle-shaped contact piece 4e2 is connected to the upper end of the elastic piece 4e1, and is movably supported by the elastic piece 4e1. The sickle-shaped contact piece 4e2 is curved so as to protrude forward. The sickle-shaped contact piece 4e2 is configured to press into contact with the plug connector from the rear to the front in the "contact direction with the connection target", which is the direction intersecting the terminal arrangement direction, that is, the Y direction. ing.

The contact portions 4e of this embodiment have different shapes between the two outer contact portions 4e in the X direction and the center contact portion 4e in the X direction. That is, the two outer contact portions 4e have longer elastic pieces 4e1 than the center contact portion 4e. Therefore, the sickle-shaped contact pieces 4e2 of the two outer contact parts 4e are located higher than the sickle-shaped contact pieces 4e2 of the central contact part 4e.

As described above, the movable engaging portion 3a in the socket connector 1 of this embodiment has the heat dissipation portion 3b through which the heat within the accommodation space 2a convects to the external space. Therefore, according to the present embodiment, the heat within the accommodation space 2a can be dissipated to the outside of the socket connector 1 through the heat dissipation portion 3b.

Second embodiment [Figures 8 to 9]

Hereinafter, a socket connector 21 as a second embodiment of the "movable connector" of the present invention will be mainly described with reference to the drawings, mainly the parts that are different in configuration from the socket connector 1 described above. That is, unless otherwise specified, the socket connector 21 can have the same effects as the socket connector 1 described above.

Configuration of socket connector 21 [Figures 8 to 9]

The socket connector 21 of this embodiment includes a fixed housing 22 as a "first housing", a movable housing 23 as a "second housing", and a plurality of terminals 4. The terminals 4 of the socket connector 1 and the socket connector 21 are the same.

Fixed housing 22

The fixed housing 22 of this embodiment includes a front wall 22c as a "wall", a rear wall 22d as a "wall", lateral walls 22e, 22e as a "wall", and a "wall" as a front wall 22c. It has upper wall portions 22f, 22f. Furthermore, in this embodiment, the front wall part 22c and the upper wall part 22f and the rear wall part 22d and the upper wall part 22f are arranged in a plurality of areas adjacent to each other in the X direction with respect to the extension direction side window part 22k as a "window part". It has an extension direction side heat sink 22n. In this embodiment, the horizontal wall portion 22e includes a plurality of array direction side heat sinks 22o extending in the Z direction so as to partition array direction side window portions 22l serving as “window portions”. The fixed housing 22 is otherwise configured similarly to the fixed housing 2.

The extension direction side heat dissipation plate 22n has a fin-like shape (from the lower end of the front wall portion 22c to the rear end of the upper wall portion 22f) that protrudes outward to a size larger than the respective outer surfaces of the front wall portion 22c and the upper wall portion 22f. It is formed into a flat plate. This also applies to the extension direction side heat sink 22n formed on the rear wall portion 22d side. The extension direction side heat sinks 22n all extend along the YZ plane. The extension direction side window portion 22k is formed between the extension direction side heat sinks 22n, 22n adjacent to each other in the X direction. The extension direction side heat sink 22n is formed on the partition wall 2j in the region of the upper wall portion 22f where the partition wall 2j is formed. The extension direction side heat sink 22n is integrated with the partition wall 2j.

The arrangement direction side heat dissipation plate 22o is formed in a fin shape (flat plate shape) that protrudes outward from the upper end to the lower end of the horizontal wall portion 22e to a size larger than the respective outer surfaces of the horizontal wall portion 22e and the upper wall portion 2f. . The arrangement direction side heat sinks 22o all extend along the XZ plane. The arrangement direction side window portion 22l is formed between the arrangement direction side heat sinks 22o, 22o adjacent to each other in the Y direction.

The fixed housing 22 is configured to transfer heat within the accommodation space 2a to the extension direction side heat sink 22n and the arrangement direction side heat sink 22o by thermal conduction, and to exchange heat with the outside. Since the fixed housing 22 has the extension direction side heat sink 22n and the arrangement direction side heat sink 22o, it is possible to more efficiently dissipate the heat within the accommodation space 2a to the outside.

The arrangement direction side heat sink 22o can ensure the strength of the horizontal wall portion 22e. Therefore, the array direction side window portion 22l is formed larger in the Y direction than the array direction side window portion 2l. Therefore, since the horizontal wall portion 2e has the arrangement direction side heat sink 22o, the arrangement direction side window portion 22l can be formed with a larger cross-sectional area, and outside air can be introduced from the external space into the accommodation space 2a at a larger flow rate. I can do it. Therefore, since the fixed housing 22 has such a side window 22l in the arrangement direction, the heat in the housing space 2a can be dissipated to the outside through a flow path having a large cross-sectional area.

The extension direction side heat sink 22n and the arrangement direction side heat sink 22o of this embodiment are integrally formed from the same resin material as the front wall portion 22c, the rear wall portion 22d, the side wall portions 22e, 22e, the top wall portions 22f, 22f, etc. has been done. However, the extension direction side heat sink 22n and the arrangement direction side heat sink 22o are not limited to the resin material, and other materials with high thermal conductivity may be used.

Movable housing 23

The movable housing 23 of this embodiment has a front wall 23c, a back wall 23d, side walls 23e, 23e, and a top wall 3f. Furthermore, in this embodiment, the front wall 23c has a front opening 23n, the rear wall 23d has a rear opening 23o, and the side walls 23e, 23e have side openings 23p, 23p, respectively. ing. The movable housing 23 is configured similarly to the movable housing 3 except for this.

The front opening 23n is a through hole that penetrates the front wall 23c in the Y direction. The front opening 23n is formed in a region between the movable terminal holding portion 3m (see FIG. 3, etc.) and the movable engaging portion 3a in the Z direction. The front opening 23n is formed corresponding to the terminal 4. Therefore, two front openings 23n are arranged side by side along the X direction. Since the front wall 23c has the front opening 23n, the region below the contact portion 4e is exposed when viewed from the front, and the heat generated in the contact portion 4e can be dissipated into the accommodation space 2a. The back opening 23o is similar to the front opening 23n except for the front-back direction.

The side opening 23p is a through hole that penetrates the side wall 23e in the X direction. The side opening 23p extends upward along the Z direction from the lower end of the side wall 23e. The side opening 23p has a length of about 50% of the total height of the side wall 23e. Since the side wall 23e has the side opening 23p, outside air introduced from the heat sink 22o on the side in the arrangement direction of the fixed housing 22 can be supplied to the fitting chamber 3h, and the heat generated in the contact portion 4e can be accommodated. It can be diffused into the space 2a.

As described above, in this embodiment, heat within the housing space 2a can be dissipated to the outside of the socket connector 21 by heat conduction by the fin structure and convection by the "window".

Third embodiment [Figure 10]

Hereinafter, a socket connector 31 as a third embodiment of the "movable connector" of the present invention will be mainly described with reference to the drawings, mainly the parts that are different in configuration from the socket connector 1 described above. That is, unless otherwise specified, the socket connector 31 can achieve the same effects as the socket connector 1 described above.

Configuration of socket connector 31 [Figure 10]

The socket connector 31 of this embodiment includes a fixed housing 2 as a "first housing", a movable housing 33 as a "second housing", and a plurality of terminals 4. The fixed housing 2 and the terminals 4 are the same for the socket connector 1 and the socket connector 31.

Movable housing 33
As shown in FIG. 10, the movable housing 33 of this embodiment has a movable engagement portion 33a as a “second engagement portion”. As shown in FIG. 10, the movable side engaging portion 33a is composed of, for example, a plurality of engaging protrusions 33k. Each of the engaging protrusions 33k has a column shape that is longer in the Y direction than in other directions. The movable-side engaging portion 33a differs from the movable-side engaging portion 3a in that it does not have an engaging protrusion connecting portion 3l that connects adjacent engaging protrusions 33k.

A gap is formed between the plurality of engagement protrusions 33k, 33k. In the present embodiment, the heat dissipation section 3b has a flow path formed not by a through hole but by a gap between the engagement protrusions 33k, 33k. Therefore, in this embodiment, the weight can be reduced compared to the case where the movable side engaging portion 33a is configured to have, for example, a large single engaging piece or the engaging protrusion connecting portion 3l. In this embodiment, on top of that, the heat within the housing space can be radiated to the outside from the heat radiating portion 3b formed between the adjacent engaging protrusions 33k, 33k.

As described above, in this embodiment, the heat within the housing space 2a can be radiated to the outside of the socket connector 31 through the heat radiating portion 3b formed between the engaging protrusions 33k, 33k.

The configurations according to each embodiment detailed in this specification can be combined arbitrarily. For example, the movable engagement portion 33a of the third embodiment may be applied to the movable housing 23 of the second embodiment.

1 Socket connector (movable connector)
2 Fixed housing (first housing)
2a Accommodation space 2b Fixing bracket attachment part 2c Front wall part (wall part)
2d Rear wall (wall)
2e Side wall part (wall part)
2f Upper wall part (wall part, first engaging part)
2g Top opening 2h Exposed part 2i Exposure hole 2j Partition wall (misinsertion prevention part)
2k Extension direction side window (window)
2l Arrangement direction side window part (window part)
2m Fixed side terminal holding part 3 Movable housing (second housing)
3a Movable side engaging part (second engaging part)
3b Heat radiation part 3c Front wall 3d Rear wall 3e Side wall 3f Top wall 3g Partition wall 3h Fitting chamber 3i Insertion port 3j Insertion guiding surface 3k Engagement protrusion 3l Engagement protrusion connection part 3m Movable side terminal holding part 4 Terminal 4a Board connection part 4b Fixed side held part 4c Movable part 4d Movable side held part 4e Contact part 4e1 Elastic piece 4e2 Sickle-shaped contact piece 4f Folded part 5 Fixed metal fitting 21 Socket connector (movable connector)
22 Fixed housing (first housing)
22c Front wall (wall)
22d Rear wall (wall)
22e Side wall part (wall part)
22f Upper wall part (wall part, first engaging part)
22k Extension direction side window (window)
22l Array direction side window part (window part)
22n Extension direction side heat sink 22o Arrangement direction side heat sink 23 Movable housing (second housing)
23c Front wall 23d Rear wall 23e Side wall 23n Front opening 23o Rear opening 23p Side opening 31 Socket connector (movable connector)
33 Movable housing (second housing)
33a Movable side engaging part (second engaging part)
33k Engagement protrusion P1 Circuit board (board)
P2 Top surface (board surface)
X Width direction, left/right direction (terminal arrangement direction)
Y Depth direction, front-back direction (direction of terminal extension, direction of contact with connected object)
Z Height direction, vertical direction (fitting direction and removal direction of connected objects)

Claims (14)

a first housing;
a second housing displaceable relative to the first housing;
a terminal having a contact part that makes conductive contact with a connection target, and a movable part that supports the second housing so as to be displaceable with respect to the first housing;
comprising the second housing and a housing space for the terminal,
The first housing has a first engaging portion extending in a direction crossing the connection direction with the connection target,
The second housing is a movable connector having a second engagement part that contacts the first engagement part and restricts displacement of the second housing in a removal direction that is a direction opposite to the connection direction. In,
The first housing surrounds the second housing all around and has a wall portion higher than the second engaging portion,
The movable connector is characterized in that the second engaging part has a heat radiation part through which heat in the accommodation space flows to an external space. a first housing;
a second housing displaceable relative to the first housing;
a terminal having a contact part that makes conductive contact with a connection target, and a movable part that supports the second housing so as to be displaceable with respect to the first housing;
comprising the second housing and a housing space for the terminal,
The first housing has a first engaging portion extending in a direction crossing the connection direction with the connection target,
The second housing is a movable connector having a second engagement part that contacts the first engagement part and restricts displacement of the second housing in a removal direction that is a direction opposite to the connection direction. In,
The second engagement part has a heat radiation part through which heat in the accommodation space flows to an external space,
The heat radiating part is disposed between the movable part and the first engaging part in the housing space, and the heat dissipating part is arranged in the housing space between the movable part and the first engaging part, and the heat dissipating part is arranged with respect to the external space regardless of the displacement position of the second housing with respect to the first housing. The movable connector is exposed in the removal direction. 3. The movable connector according to claim 1, wherein the heat radiation part is a through hole passing through the second engaging part. The second engaging portion is constituted by a plurality of engaging protrusions,
3. The movable connector according to claim 1, wherein the heat radiating portion is provided between the engaging protrusions adjacent in the cross direction. 5. The movable connector according to claim 4, wherein the second housing has an engaging protrusion connecting portion that connects the engaging protrusions that are adjacent to each other in the cross direction. 6. The movable connector according to claim 1, wherein the second engaging portion is located closer to the removal direction than the movable portion. 7. The movable connector according to claim 1, wherein at least a part of the movable part is located so as to overlap the heat radiation part when viewed from the connection direction. The movable part has a folded part on the removal direction side,
The movable connector according to any one of claims 1 to 7, wherein the folded portion is located offset from the heat radiation portion when viewed from the connection direction. The first housing has an exposed part that communicates with the heat radiating part and exposes the heat radiating part to the outside of the first housing,
When viewed from the connection direction, at least a portion of the exposed portion overlaps the heat radiating portion that is displaced with the second housing relative to the first housing. Movable connector as described. 10. The movable connector according to claim 9, wherein the first housing includes an erroneous insertion prevention portion that partially covers the exposed portion to prevent erroneous insertion of the connection target. The wall part surrounds the accommodation space and has a window part ,
The window portion communicates the accommodation space and the external space.
The movable connector according to claim 1 . 12. The movable connector according to claim 1, wherein the second engaging portion extends along the direction of extension of the movable portion. The movable connector according to any one of claims 1 to 12, wherein the second housing has an opening passing through a side wall. The first housing has a wall surrounding the accommodation space,
The movable connector according to claim 2 , wherein the wall portion has a window portion that communicates the accommodation space and the external space.

Images