JP2008311042A - Connector floating structure - Google Patents

Abstract

[PROBLEMS] To reduce the size and increase the positional accuracy of a connector in a floating structure of a connector 3 that absorbs a positional deviation when the connector 3 is mated with a mating connector and returns to the original position when the mating is released. .
A connector in which a connector 3 fixed to a connector base 5 is fitted with a mating connector so that a fitting connection portion faces the window hole 12 of the cradle case 1 with a gap so as to freely move in the window hole 12. 3 is provided with a base holder 7 fixed to the cradle case 1 and movably holding the connector base 5. The base holder 7 is engaged with the outer peripheral edge of the connector base 5 to place the connector base 5 in a predetermined position. And a plurality of elastic engagement pieces 76 to 76 that are elastically deformed in accordance with the movement of the connector base 5 and absorb a positional shift when the connector 3 and the mating connector are fitted to each other.
[Selection] Figure 3

Description

  The present invention, when fitting and connecting a connector provided on the electronic device side such as a digital camera, a mobile phone, a personal computer, and a connector provided on the cradle (mounting table) side on which the electronic device is placed, The present invention relates to a cradle-side connector floating structure for absorbing misalignment between connectors.

In order to supply charging power to an electronic device such as a digital camera or a mobile phone, or to transmit / receive information to / from each other, the electronic device may be placed on a cradle and the connectors connected to each other.
In order to facilitate this fitting connection, the area on which the electronic device of the cradle is placed is slightly wider than the area occupied by the electronic device. Correspondingly, the cradle-side connector needs to have a floating structure having a degree of freedom in a direction substantially perpendicular to the fitting direction in order to absorb a positional deviation from the electronic device-side connector.

For example, as shown in FIGS. 4A and 4B, the digital camera 200 is mounted on the mounting portion 101 of the cradle 100, and the connector 201 on the digital camera 200 is fitted and connected to the connector 102 on the cradle 100 side. Transmission / reception, charging, etc.
In order to facilitate this fitting connection, the placement portion 101 of the cradle 100 is formed so that a gap 103 is formed around the digital camera 200 when the digital camera 200 is placed. Correspondingly, the connector 102 on the cradle 100 side faces the window hole 106 formed in the mounting surface 105 of the cradle case 104 with a gap, and the connector 102 is fitted within the window hole 106 in the fitting direction of the connector 102. Is formed in a floating structure that can freely move in a direction substantially orthogonal to.
4A and 4B, a fixed substrate 108 and a movable substrate 109 electrically connected by a flexible cable 107 are provided inside the cradle case 104, and a connector 102 is mounted on the movable substrate 109. Has been.

    Specifically, Conventional Example 1 as shown in FIGS. 5 to 9 and Conventional Example 2 (see Patent Document 1) as shown in FIGS. 10 and 11 are known.

In Conventional Example 1, the connector 111 on the cradle 110 side is mounted on the movable substrate 112, and this movable substrate 112 is fixed to the connector base 113 and electrically connected to the fixed substrate 115 via a flexible cable (not shown). Connected.
The connector 111 faces the window hole 118 formed in the mounting surface 117 of the cradle case 116 with a gap 119. The mounting surface 117 is formed in parallel with a surface substantially orthogonal to the fitting direction of the connector 111.

The connector base 113 is formed with through holes 122, 122 located on both sides of the through hole 121 that penetrates the connector 111. The through holes 122, 122 have cylindrical bosses 125 protruding from the base holder 123, 125 is loosely fitted.
The base holder 123 is fixed to the back side of the mounting surface 117 of the cradle case 116, and cylindrical elastic rings 126, 126 formed of rubber are inserted between the bosses 125, 125 and the through holes 122, 122. Has been.

  Then, by fixing the screws 127 and 127 with washers to the tip surfaces of the bosses 125 and 125, the connector 111 can freely move within the window hole 118 due to elastic deformation of the elastic rings 126 and 126. For this reason, the connector 111 is absorbed by the elastic deformation of the elastic rings 126 and 126 when the connector 111 is engaged with the counterpart connector (for example, the connector 201 on the digital camera 200 side). When the connection is released, the elastic rings 126 and 126 are returned to their original positions by the return force.

5 to 9, the cradle case 116 is formed of an upper case 131 and a lower case 132, and a mounting surface 117 on which an electronic device is placed is formed on a part of the upper surface of the upper case 131.
The placement surface 117 of the upper case 131, the side plates 133 and 133 erected on the upper case 131 on both sides of the placement surface 117, and the upper case 131 on the back side of the placement surface 117. A mounting portion 136 on which an electronic device is placed is formed by the back plate 135.

In Conventional Example 2, as shown in FIGS. 10 and 11, the connector 151 on the cradle 150 side is mounted on the movable substrate 152, and the movable substrate 152 is fixed to the connector base 161 and the flexible cable 157 is attached. And is electrically connected to the fixed substrate 158.
The fitting connection portion of the connector 151 is loosely fitted to the connector housing portion 164 of the connector base 161, and this connector housing portion 164 is loosely fitted to the window hole 156 formed in the mounting surface 155 of the cradle case 154 with a gap. ing.
Cylindrical bosses 167 and 167 are provided on the back surface of the placement surface 155 of the cradle case 154 (the lower surface of the cradle case 154 in FIG. 10) so as to be located on both sides of the cradle case 154.
The connector base 161 is formed with cylindrical portions 168 and 168 in which the bosses 167 and 167 are loosely fitted with a gap, and on the outside of the cylindrical portions 168 and 168, fixing end portions are provided via S-shaped elastic portions 169 and 169. 171, 171 are provided, and the locking projections 172, 172, 172, 172 of the fixing end portions 171, 171 are locked in the locking holes of the cradle case 154, so that the connector base 161 is cradle case 154. It is fixed to.

Screws 175 and 175 are fixed to the front end surfaces of the bosses 167 and 167 via washers 173 and 173, and the outer circumferences of the bosses 167 and 167 are in a state where the cylindrical portions 168 and 168 of the connector base 161 have a gap around the entire periphery. By being loosely fitted to the side, the connector housing portion 164 of the connector base 161 can freely move within the window hole 156 by the elastic deformation of the S-shaped elastic portions 169 and 169. For this reason, the connector 151 is absorbed by the elastic deformation of the S-shaped elastic portions 169 and 169 when the connector 151 is fitted and connected to the counterpart connector (for example, the connector 200 in FIG. 4A), and is connected to the counterpart connector. When the fitting connection is released, the S-shaped elastic portions 169 and 169 are returned to their original positions by the restoring force.
JP-A-2005-129454

  However, in the first conventional example, in order to absorb misalignment at the time of fitting connection between the connector on the electronic device side (for example, the connector 201 in FIG. 4) and the connector on the cradle side (for example, the connectors 111 and 151 in FIG. 9 and FIG. 10). In addition, the cradle side connector can move freely within a certain range and can be returned to its original position when the fitting connection is released. However, there are the following problems.

In Conventional Example 1, since expensive screws 127 and 127 with washers are required, there is a problem that the price is increased.
In the first conventional example, the displacement between the connectors is absorbed by the elastic deformation of the cylindrical elastic rings 126 and 126 formed of an elastic body such as rubber, and the restoring force of the elastic rings 126 and 126 restores the original. Therefore, the number of work steps for manufacturing the elastic rings 126 and 126 is increased (for example, two times of punching), and it is difficult to form the elastic ring 126, and the position accuracy of the connector 111 is improved. There was a problem that it was difficult.

In Conventional Example 2, fixing end portions 171 and 171 are provided on the outside of the cylindrical portions 168 and 168 of the connector base 161 via S-shaped elastic portions 169, 169169 and 169, and the fixing end portions 171 and 171 are provided in the cradle case. Since it is fixed to 154, the number of parts is increased and the shape of the connector base 161 is increased, which makes it difficult to reduce the size.
Further, the shape of the S-shaped elastic portions 169 and 169 to 169 is directly reflected in the positional accuracy of the connector 151, and the shape of the S-shaped elastic portions 169 to 169 is complicated, so that it is difficult to increase the positional accuracy of the connector 152. There was a point.

  The present invention has been made in view of the above-described problems, and can freely move within a certain range in order to absorb misalignment between connectors at the time of mating and coupling, and return to its original position when mating and coupling is released. It is an object of the present invention to provide a connector floating structure that can be returned and that can be miniaturized and can improve the positional accuracy of the connector.

  According to the first aspect of the present invention, the movable board on which the connector is mounted is fixed to the connector base, and the fitting connecting portion where the connector is fitted to the mating connector faces the window hole of the cradle case with a gap. A connector floating structure that freely moves within the window hole, the base holder being fixed to the cradle case and holding the connector base movably in a direction substantially perpendicular to the fitting direction of the connector The base holder is engaged with the outer peripheral edge of the connector base to hold the connector base in a predetermined position, and is elastically deformed according to the movement of the connector base, so that the connector and the counterpart connector A plurality of elastic engagement pieces that absorb misalignment at the time of fitting are integrally formed.

  According to a second aspect of the present invention, in the first aspect of the invention, the connector base is formed in a substantially rectangular plate shape having a surface substantially orthogonal to the fitting direction of the connector as a plate surface, and a pair of opposing connector bases. Engagement step portions that engage with the engagement portions of the elastic engagement pieces by surface contact are formed on both sides of the outer peripheral edge, and the engagement surfaces of the engagement step portions are substantially perpendicular to the outer peripheral edge of the connector base. And is formed in an inclined plane symmetrical to a central plane substantially perpendicular to the plate surface of the connector base.

  According to a third aspect of the present invention, in the second aspect of the invention, the elastic engagement piece is formed by a leaf spring including a semicircular arc portion and a linear portion connected to one end of the semicircular arc portion, The other end of the arc portion is connected to the four corners of the base holder to be a fixed end, and the free end on the tip side of the linear portion is an engaging portion.

  According to a fourth aspect of the present invention, in the first, second, or third aspect of the invention, the side surface of the cradle case facing the connector base is elastically provided with an elastic engagement piece in an initial state in which the connector base is held at a predetermined position. An initial pressure applying rib for deforming and engaging the elastic engagement piece with the connector base with a predetermined pressure is formed.

  According to a fifth aspect of the present invention, in the first, second, third, or fourth aspect, the cradle case and the base holder are each formed of a synthetic resin, and the base holder is fixed to the cradle case by heat welding. It is characterized by that.

According to the first aspect of the present invention, the plurality of elastic engagement pieces formed on the base holder engage with the outer peripheral edge of the connector base to hold the connector base in a predetermined position and are elastic according to the movement of the connector base. Since it deform | transforms, the position shift between the connectors at the time of fitting connection is absorbed by the elastic deformation of a some elastic engagement piece, and a connector base can be returned to an original position at the time of fitting connection cancellation | release.
Further, since the connector base is held at a predetermined position by a plurality of elastic engagement pieces that engage with the outer peripheral edge of the connector base, the shape of the connector base and the base holder can be reduced to reduce the size of the floating structure. be able to.
In addition, since the plurality of elastic engagement pieces are formed integrally with the base holder, the elastic engagement pieces can be formed by a molded mold spring, and the positional accuracy of the connector can be improved.

According to a second aspect of the present invention, in the first aspect of the invention, the connector base is formed in a substantially rectangular plate shape, and the engagement step portions formed on both sides of the pair of outer peripheral edges facing the connector base are elastic. Since it engages with the engaging part of the engaging piece by surface contact and is formed on an inclined surface symmetrical to the center plane, the shape of the connector base and the elastic engaging piece can be simplified.
Furthermore, by changing the inclination angle of the engagement surface of the engagement step portion (in accordance with this change, the inclination angle of the engagement surface of the engagement portion of the elastic engagement piece is also changed), the elastic engagement piece. Since the “spring stiffness” in the horizontal and vertical directions can be adjusted, the shape design of the engagement step portion of the connector base and the engagement portion of the elastic engagement piece can be facilitated.

  The invention according to claim 3 is the invention according to claim 2, wherein the elastic engagement piece is formed by a leaf spring comprising a semicircular arc part and a linear part, and the end parts of the semicircular arc part are connected to the four corners of the base holder. Since the fixed end and the free end on the front end side of the linear portion are the engaging portions, the spring span of the elastic engaging pieces can be increased without enlarging the size of the elastic engaging pieces so much.

  According to a fourth aspect of the present invention, in the first, second, or third aspect of the invention, the cradle case forms an initial pressure application rib on a side surface facing the connector base, and the initial pressure application rib places the connector base at a predetermined position. Since the elastic engagement piece is elastically deformed and engaged with the connector base at a predetermined pressure in the initial state of holding the connector, the connector in the initial state before the fitting connection between the connectors and after the fitting connection is released The position accuracy can be further increased.

  The invention according to claim 5 is the invention according to claim 1, 2, 3 or 4, wherein the cradle case and the base holder are molded of synthetic resin, and the base holder is fixed to the cradle case by heat welding. This eliminates the need for a set screw with washer, a washer and a screw, and reduces the number of parts.

  1 to 3 show an embodiment of a connector floating structure according to the present invention. In these drawings, 1 is a cradle case, 3 is a connector on the cradle side, 4 is a movable substrate, 5 is a connector base, 7 represents a base holder.

The cradle case 1 is formed of an insulating synthetic resin, and a part of the surface of the cradle case 1 (the upper surface in FIGS. 2A and 3) for placing an electronic device such as a digital camera or a mobile phone. A surface 11 is formed, and this mounting surface 11 is provided with both side plates and back plates (both not shown) erected on the surface of the cradle case 1, as in the conventional example shown in FIGS. A placement portion on which electronic equipment is placed is formed.
The cradle case 1 is formed with a rectangular window hole 12 that is located on a part of the mounting surface 11 and penetrates the front and back surfaces.
On the back surface (inner side surface) of the cradle case 1, a rectangular groove-shaped engagement recess 13 is formed at a position surrounding the outer periphery of the window hole 12, and a rectangular frame shape is formed at a position surrounding the outer periphery of the engagement recess 13. The initial pressure application rib 15 is provided in a projecting manner.
On the back surface of the cradle case 1, short cylindrical support ribs 16 to 16 are provided so as to protrude between the engaging recess 13 and the initial pressure application rib 15, and the outer sides of the three sides of the initial pressure application rib 15. The cylindrical fixing bosses 17 to 17 are provided in a projecting manner.

The connector 3 is mounted on a movable substrate 4, and the movable substrate 4 is fixed to a connector base 5.
The connector base 5 is made of an insulating synthetic resin and has a substantially rectangular plate shape.
Engagement step portions 51, 51 are formed on the opposite outer peripheral edges of the connector base 5 on both sides thereof, and the engagement step portions 51, 51 are formed on the connector base 5. Inclined engagement surfaces 52, 52 that are stepped from both sides of the long side outer periphery toward the center are formed. The engagement surfaces 52, 52 are formed on the long side outer periphery of the connector base 5. It is formed into an inclined surface that bisects substantially vertically and inclines at an angle of approximately 45 degrees that is symmetric with respect to the center plane 54 that is substantially perpendicular to the plate surface of the connector base 5.

The connector base 5 is formed with a through-hole 53 that penetrates the fitting connection side of the connector 3 and protrudes outward.
On the surface side of the connector base 5, an engagement convex portion 55 that engages with the outer periphery of the engagement concave portion 13 of the cradle case 1 with play is formed at a position surrounding the outer periphery of the through hole 53.
An accommodation recess 56 that accommodates the movable substrate 4 is formed on the back surface side of the connector base 5, and a cylindrical fixing for projecting inward from the bottom surface of the accommodation recess 56 and penetrating the locking hole of the movable substrate 4. Bosses 57 to 57 are formed.

  The base holder 7 is formed of an insulating synthetic resin, and has a substantially rectangular bottom plate 71, side plates 72 and 72 that are continuously bent upward from a short side edge of the bottom plate 71, and the side plates. 72 and 72, horizontal plates 73 and 73 which are continuously bent from the upper end edges of the bottom plate 71, and a mounting piece having a vertical portion and a horizontal portion which are continuously provided at the center of one long side of the bottom plate 71. 75 and elastic engagement pieces 76 to 76 that are located at substantially the four corners of the bottom plate 71 and that are continuously provided on both side portions of the side plates 72 and 72 and the bottom plate 71.

The bottom plate 71, the side plates 72 and 72, the attachment pieces 75, and the elastic engagement pieces 76 to 76 form an engagement recess 79 that engages and holds the connector base 5 movably along the plate surface of the bottom plate 71. .
The bottom plate 71 is formed with through-holes 77 to 77 into which front end side protruding portions of the fixing bosses 57 to 57 before and after melting (melting) can be loosely fitted.
The horizontal plates 73 and 73 and the horizontal portion of the attachment piece 75 are formed on substantially the same plane. Locking holes 78 to 78 for engaging and locking the fixing bosses 17 to 17 are formed in the horizontal portions of the horizontal plates 73 and 73 and the mounting piece 75, and the fixing bosses 17 to 17 are melted. Thus, the base holder 7 is fixed to the back side of the cradle case 1.
The elastic engagement piece 76 is formed by a leaf spring (molded mold spring) including a semicircular arc portion 81 and a linear portion 82 connected to one end of the semicircular arc portion 81, and the other end of the semicircular arc portion 81 is the bottom plate. 71 is connected to the corner portion of the engaging portion 83 as a fixed end, and the free end on the front end side of the linear portion 82 is used as an engaging portion 83. The engaging surface 85 of the engaging portion 83 is the engaging surface 52 of the engaging step portions 51 to 51. Engage with surface contact.

Next, assembly of the floating structure of the connector 3 will be described.
The fixing bosses 57 to 57 of the connector base 5 are engaged with the engaging holes of the movable substrate 4 on which the connector 3 is mounted, and the fixing bosses 57 to 57 are heated and melted to connect the connector 3 and the movable substrate 4 to the connector base. Fix to 5.
Next, the engaging convex portion 55 of the connector base 5 is engaged with the engaging concave portion 13 of the cradle case 1, and the fitting connection side of the connector 3 fixed to the connector base 5 is outside the window hole 12 of the cradle case 1. To protrude. At this time, a gap is formed between the connector 3 and the window hole 12 so that the connector 3 can freely move within the window hole 12.

  Next, the fixing bosses 17 to 17 of the cradle case 1 are engaged with the locking holes 78 to 78 of the base holder 7, and the fixing bosses 17 to 17 are heated and melted to fix the base holder 7 to the cradle case 1. To do. At this time, the front end surfaces of the support ribs 16 to 16 of the cradle case 1 are in contact with the upper surface of the connector base 5 with a slight gap so that the connector base 5 can move smoothly in the engagement recess 79 of the base holder 7. Yes. In addition, the elastic engagement pieces 76 to 76 are engaged with the initial pressure applying ribs 15 of the cradle case 1 so that the engagement portions 83 are changed from the two-dot chain line in FIG. It is elastically deformed.

  The movable substrate 4 is electrically connected to a fixed substrate fixed to the cradle case by a flexible cable, similarly to the conventional example 2 shown in FIGS.

Next, the operation of the embodiment will be described.
First, an initial state in which an electronic device (for example, the digital camera 200 in FIG. 4) is not placed on the placement surface 11 of the cradle case 1 will be described.
In this initial state, the elastic engagement pieces 76 to 76 are engaged with the initial pressure applying rib 15 of the cradle case 1 and elastically deformed from the state indicated by the two-dot chain line in FIG. Since the engagement surfaces 85 to 83 are engaged with the engagement step portions 51 to 51 of the connector base 5 by surface contact with a predetermined initial pressure, the connector base 5 is substantially at the center of the engagement recess 79 of the base holder 7. And the positional accuracy can be further increased. For this reason, while the fitting connection part of the connector 3 can be hold | maintained in the approximate center of the window hole 12, the positional accuracy can be made higher.

Next, the mounting state of the electronic device will be described.
When an electronic device (for example, the digital camera of FIG. 4) is placed on the mounting surface 11 of the cradle case 1 and the connector on the electronic device side (for example, the connector 201 of FIG. 4) and the connector 3 on the cradle side are fitted and connected, Is displaced by the movement of the connector 3. That is, when the connector base 5 fixed to the connector 3 moves in the engagement recess 79 of the base holder 7, the positional deviation between the connectors is absorbed, but the elasticity of the base holder 7 depends on the movement direction of the connector base 5. The engagement pieces 76 to 76 are elastically deformed. At this time, the engagement surfaces 52 to 52 of the engagement step portions 51 to 51 of the connector base 5 that engage with the engagement surfaces 85 of the elastic engagement pieces 76 to 76 are symmetrical with respect to the center plane 54. In addition, since the inclined surface is inclined at about 45 degrees, the “spring stiffness” in all directions (horizontal, vertical, and diagonal directions) in which the connector base 5 moves is substantially the same, and when the displacement is absorbed. The movement of the connector base 5 does not give a sense of incongruity, and the “sagging” degree of the elastic engagement pieces 76 to 76 can be made uniform to extend the life.

  When the electronic device is removed from the placement surface 11 of the cradle case 1 because the supply of charging power to the electronic device is completed, the connector is released from the fitting, and the return force of the elastic engagement pieces 76 to 76 is released. The connector base 5 returns to the approximate center of the engaging recess 79 of the base holder 7 and returns to the initial state.

  In the above embodiment, in order to reduce the number of parts, the case where the cradle case 1 and the base holder 7 are formed of a synthetic resin and the base holder 7 is fixed to the cradle case 1 by heat welding has been described. The present invention is not limited to this, and the case where the base holder 7 is fixed to the cradle case 1 with a screw can also be used.

  In the embodiment, the case where the initial pressure application rib 15 is formed on the side surface of the cradle case 1 facing the connector base 5 in order to further improve the positional accuracy of the connector has been described. However, the present invention is not limited to this. Also, the case where the initial pressure application rib 15 is omitted can be used.

  In the above-described embodiment, the case where the elastic engagement piece 76 is formed of a leaf spring including the semicircular arc portion 81 and the linear portion 82 in order to increase the spring span has been described. However, the present invention is not limited to this. Absent. For example, the case where the elastic engagement piece is formed by a cantilever spring-like leaf spring can be used.

  In the above embodiment, the engagement surfaces 52, 52 of the engagement step portions 51, 51 of the connector base 5 are set so that the rigidity of the spring is substantially uniform in all directions in which the connector base moves within the engagement recess of the base holder. However, the present invention is not limited to this, and the engaging step portion of the connector base 5 is not limited to this. It is also possible to use the case where the engagement surfaces 52 to 52 of 51 to 51 are symmetrical with respect to the center surface 54 and are formed as inclined surfaces inclined at an angle other than 45 degrees.

  In the embodiment, in order to simplify the shapes of the connector base and the elastic engagement piece, and to facilitate the shape design of the engagement step portion of the connector base and the engagement portion of the elastic engagement piece, the connector base is substantially omitted. Engagement step portions formed in a rectangular plate shape and formed on both sides of a pair of opposing outer peripheral edges of the connector base engage with the engagement portions of the elastic engagement pieces in surface contact and are However, the present invention is not limited to this, and a plurality of elastic engagement pieces formed on the base holder are engaged with the outer peripheral edge of the connector base. It is also possible to use a device that holds the connector base in a predetermined position and elastically deforms in accordance with the movement of the connector base to absorb the positional deviation between the connectors.

1 shows one embodiment of the connector floating structure according to the present invention (an embodiment before fixing by heat welding), (a) is a plan view, (b) is a front view, (c) is a right side view, ( d) is a rear view. 1A and 1B are cross-sectional views taken along line AA in FIG. 1B, and FIG. 1B is an enlarged cross-sectional view taken along line BB in FIG. FIG. 2 is an exploded perspective view of FIG. 1. It is explanatory drawing which showed the example in the case of mounting a digital camera on the mounting part of a cradle, and fitting the connector of a cradle side and the connector of a digital camera, (a) is a front view, (b) is a side view. is there. It is a top view which shows the prior art example 1. FIG. 6 is a front view of FIG. 5. FIG. 6 is a right side view of FIG. 5. It is the sectional view on the AA line of FIG. It is an expanded sectional view of the connector 111 of FIGS. It is sectional drawing which shows the prior art example 2. It is a top view of the connector base 161 of FIG. 10, and its periphery.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Cradle case 11 ... Mounting surface of cradle case 1 12 ... Window hole 15 ... Initial-pressure provision rib 3 ... Connector 5 ... Connector base
DESCRIPTION OF SYMBOLS 51 ... Engagement step part 54 ... Center surface 7 ... Base holder 76 ... Elastic engagement piece 81 ... Semicircular arc part 82 ... Linear part
83... Engagement portion of the elastic engagement piece 76 85... Engagement surface of the engagement portion 83
201 ... Mating connector

Claims (5)

  The movable substrate (4) on which the connector (3) is mounted is fixed to the connector base (5), and the fitting connection portion where the connector (3) is fitted to the mating connector (201) is the window hole of the cradle case (1). (12) is a connector floating structure in which the connector (3) is allowed to move freely in the window hole (12) with a gap between the connector base (5) and the connector base (5) Is provided with a base holder (7) movably held in a direction substantially perpendicular to the fitting direction of the connector (3), and the base holder (7) is engaged with the outer peripheral edge of the connector base (5). A plurality of elastic members that hold the base (5) in a predetermined position and elastically deform in accordance with the movement of the connector base (5) to absorb misalignment between the connector (3) and the mating connector (201). Piece Floating structure of the connector 76) is characterized in that it is formed integrally.   The connector base (5) is formed in a substantially rectangular plate shape with a surface substantially orthogonal to the fitting direction of the connector (3) as a plate surface, and is elastically engaged with both side portions of a pair of outer peripheral edges facing the connector base (5). An engagement step portion (51) that engages with the engagement portion (83) of the joining piece (76) by surface contact is formed, and the engagement surface (52) of the engagement step portion (51) is formed on the connector base (5). And the outer peripheral edge of the connector base (5) is formed in an inclined plane symmetrical to the center plane (54) substantially perpendicular to the plate surface of the connector base (5). 1. A connector floating structure according to 1.   The elastic engagement piece (76) is formed by a leaf spring including a semicircular arc portion (81) and a linear portion (82) connected to one end of the semicircular arc portion (81). The connector flow according to claim 2, characterized in that the other end is connected to the four corners of the base holder (7) to be a fixed end, and the free end on the front end side of the linear portion (82) is an engagement portion (83). Ting structure.   On the side surface where the cradle case (1) faces the connector base (5), the elastic engagement piece (76) is elastically deformed in an initial state in which the connector base (5) is held at a predetermined position, and the elastic engagement piece (76 4. The connector floating structure according to claim 1, wherein an initial pressure applying rib is formed to engage the connector base with a predetermined pressure. 5. The cradle case (1) and the base holder (7) are each formed of a synthetic resin, and the base holder (7) is fixed to the cradle case (1) by heat welding. Or the floating structure of the connector of 4.

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