JP2019114566A - Connector and electronic equipment - Google Patents

Abstract

To provide a connector in which a good floating structure and good transmission characteristics in signal transmission are compatible.SOLUTION: A connector 10 includes a first insulator 20 formed in frame-shape, a second insulator 30 placed on the inside of the first insulator 20, movable relatively to the first insulator 20, and fitting to a connection object 70, and multiple contacts 60 attached to the first and second insulators 20, 30. The contact 60 includes an elastically deformable first elastic part 64A, an adjustment part 64B, and an elastically deformable second elastic part 64C. In the plan view of the multiple contacts 60 in the arrangement direction, width of the adjustment part 64B in a direction orthogonal to the extension direction of the adjustment part 64B is larger than the width of the first elastic part 64A in the direction orthogonal to the extension direction of the first elastic part 64A, and the width of the second elastic part 64C in the direction orthogonal to the extension direction of the second elastic part 64C.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a connector and an electronic device.

  Conventionally, as a technique for improving connection reliability with a connection object, for example, it has a floating structure that absorbs positional deviation between substrates by allowing a part of the connector to move even during or after fitting. Connectors are known.

  Patent Document 1 discloses an electrical connector having a floating structure and contributing to miniaturization while suppressing conduction failure due to flux rising.

Patent No. 5568677

  In recent years, in electronic devices, the increase in the amount of information and the speeding up of signal transmission have significantly progressed. Also in the connector using the floating structure, a design corresponding to such a large capacity and high speed transmission is required. However, in the electrical connector described in Patent Document 1, the design corresponding to such a large capacity and high speed transmission has not been sufficiently considered.

  An object of the present invention made in view of such problems is to provide a connector having both a good floating structure and a good transmission characteristic in signal transmission.

In order to solve the above-mentioned subject, the connector concerning the 1st viewpoint is:
A first insulator formed in a frame shape;
A second insulator disposed inside the first insulator, movable relative to the first insulator, and fitted with the connection object;
A plurality of contacts attached to the first insulator and the second insulator;
Equipped with
The contact includes a first elastic portion elastically deformable, an adjustment portion, and a second elastic portion elastically deformable between the first insulator and the second insulator.
In plan view in the arrangement direction of the plurality of contacts, the width of the adjustment portion in the direction orthogonal to the extension direction of the adjustment portion is the width of the first elastic portion in the direction orthogonal to the extension direction of the first elastic portion. And a width of the second elastic portion in a direction orthogonal to the extension direction of the second elastic portion.

In the connector according to the second aspect,
The contact has a first base disposed along the first insulator and a second base disposed along the second insulator,
The first elastic portion extends from the first base toward the second insulator,
The second elastic portion extends from the adjustment portion to the second insulator.

In the connector according to the third aspect,
The adjustment unit extends the width of the first elastic portion more than the width of the first elastic portion in the fitting direction between the second insulator and the connection target and the width of the second elastic portion in the fitting direction. Wide in the direction.

In the connector according to the fourth aspect,
The first elastic portion, the adjusting portion, and the second elastic portion are formed flat in the arrangement direction orthogonal to the fitting direction and the extending direction.

In the connector according to the fifth aspect,
The contact includes an elastically deformable third elastic portion which is disposed along the inner wall of the second insulator and extends in a fitting direction between the second insulator and the connection target.

In the connector according to the sixth aspect,
The second base connects the second elastic portion and the third elastic portion.

In the connector according to the seventh aspect,
The second insulator includes a wall formed at a position facing the second base.

The connector according to the eighth aspect is
In a fitted state in which the second insulator and the connection object are fitted, a contact portion electrically contacting the connection object is provided.
The contact portion is formed at an end of a portion which is continuous with the third elastic portion in the fitting direction.

In the connector according to the ninth aspect,
The adjustment portion extends in a fitting direction between the second insulator and the connection object.
The first elastic portion and the second elastic portion respectively extend from both end sides in the fitting direction in the adjusting portion.

In the connector according to the tenth aspect,
The first elastic portion, the adjustment portion, and the second elastic portion are arranged in order from the fitting side along the fitting direction.

The electronic device according to the eleventh aspect is
It has one of the above connectors.

  According to the connector according to the embodiment of the present invention, it is possible to achieve both a good floating structure and a good transmission characteristic in signal transmission.

It is the appearance perspective view showing the state where the connector and connection subject concerning one embodiment were connected by top view. It is the appearance perspective view showing the state where the connector and connection subject concerning one embodiment separated by top view. BRIEF DESCRIPTION OF THE DRAWINGS It is the external appearance perspective view which showed the connector which concerns on one Embodiment by top view. It is the disassembled perspective view by top view of the connector of FIG. It is a cross-sectional perspective view which followed the VV arrow line of FIG. It is an enlarged view of the VI section of FIG. It is sectional drawing along the VV arrow line of FIG. It is a front view showing a pair of contacts. It is an enlarged view of the IX section of FIG. It is the model which showed the mode of the impedance change in the 1st elastic part of a contact, an adjustment part, and a 2nd elastic part. It is the external appearance perspective view which showed the connection target object connected with the connector of FIG. 3 by top view. It is a disassembled perspective view by top view of the connection target object of FIG. It is sectional drawing which followed the XIII-XIII arrow line of FIG. It is a schematic diagram which showed the 1st example to which a pair of contacts elastically deform. It is a schematic diagram showing the 2nd example which a pair of contacts elastically deform.

  Hereinafter, an embodiment of the present invention will be described with reference to the attached drawings. Front, rear, right, left, and top and bottom directions in the following description are based on the directions of arrows in the drawings. The directions of the arrows are aligned with each other in different drawings in FIGS. 1 to 9 and 13. The directions of the arrows are aligned with each other in FIGS. 11 and 12. The direction of each arrow is mutually aligned between FIG. 14 and FIG. Depending on the drawings, the illustration of the circuit boards CB1 and CB2 is omitted for the purpose of easy illustration.

  In the following description, the connector 10 according to an embodiment is described as a receptacle connector, and the connection object 70 is a plug connector. That is, when the connector 10 and the connection object 70 are connected, the contact portion of the contact 60 of the connector 10 is elastically deformed, and the contact 110 of the connection object 70 is not elastically deformed. The types of the connector 10 and the connection object 70 are not limited to this. The connector 10 may act as a plug, and the connection object 70 may act as a receptacle.

  In the following description, the connector 10 and the connection object 70 are described as being connected to the circuit boards CB1 and CB2 respectively and connected to these in the vertical direction. That is, the connector 10 and the connection object 70 are connected along the vertical direction as an example. The “fitting direction” used in the following description refers to the vertical direction as an example. The connection method is not limited to this. The connector 10 and the connection object 70 may be connected in parallel to the circuit boards CB1 and CB2, respectively, or one may be connected in the vertical direction and the other in a parallel direction. The circuit boards CB1 and CB2 may be rigid boards or any other circuit boards. For example, the circuit board CB1 or CB2 may be a flexible printed circuit board (FPC).

  FIG. 1 is an external perspective view showing a state in which a connector 10 according to an embodiment and a connection object 70 are connected in top view. FIG. 2 is an external perspective view showing a state in which the connector 10 according to the embodiment and the connection object 70 are separated from above.

  The connector 10 according to one embodiment has a floating structure. The connector 10 allows relative movement of the connected connection object 70 with respect to the circuit board CB1. That is, even in the state of being connected to the connector 10, the connection object 70 can move within a predetermined range with respect to the circuit board CB1.

  FIG. 3 is an external perspective view showing the connector 10 according to the embodiment in top view. FIG. 4 is an exploded perspective view of the connector 10 of FIG. 3 as viewed from above. 5 is a cross-sectional perspective view taken along the line V-V in FIG. 6 is an enlarged view of a VI part of FIG. 7 is a cross-sectional view taken along the line V-V in FIG. FIG. 8 is a front view showing a pair of contacts 60. As shown in FIG. FIG. 9 is an enlarged view of a portion IX of FIG.

  As shown in FIG. 4, the connector 10 has a first insulator 20, a second insulator 30, a fitting 40, a metal plate 50, and a contact 60 as large components. The connector 10 is assembled by the following method as an example. That is, the metal fitting 40 is press-fit from below the first insulator 20, and the second insulator 30 is disposed inside the first insulator 20 to which the metal fitting 40 is press-fitted. The contacts 60 are pressed in from the lower side of each. The metal plate 50 is press-fit on the outer surface of the first insulator 20.

  The detailed structure of the connector 10 in a state in which the contact 60 is not elastically deformed will be described mainly with reference to FIGS. 3 to 9.

  As shown in FIGS. 4 and 5, the first insulator 20 is a rectangular cylindrical member obtained by injection molding of an insulating and heat resistant synthetic resin material. The first insulator 20 is hollow and has openings 21A and 21B on the upper and lower surfaces, respectively. The first insulator 20 is formed of four side surfaces and has an outer peripheral wall 22 surrounding an internal space. The first insulator 20 has a recess 23 provided in the front and rear surfaces of the outer peripheral wall 22. A metal plate 50 is attached to the recess 23.

  The first insulator 20 has a plurality of contact attachment grooves 24 formed from the lower edge to the lower surface and the inner surface of the outer peripheral wall 22. The plurality of contacts 60 are respectively attached to the plurality of contact attachment grooves 24. The number of contact attachment grooves 24 is the same as the number of contacts 60. The plurality of contact attachment grooves 24 are recessed in line in the left-right direction. The contact attachment groove 24 extends in the vertical direction on the inner surface of the first insulator 20.

  The second insulator 30 is a member extending in the left-right direction, which is formed by injection molding of an insulating and heat-resistant synthetic resin material. The second insulator 30 is formed in a substantially convex shape in a front view from the front. The second insulator 30 has a bottom portion 31 constituting a lower portion, and a fitting convex portion 32 projecting upward from the bottom portion 31 and fitting with the connection object 70. The bottom 31 is longer than the fitting projection 32 in the left-right direction. In other words, the left and right end portions of the bottom portion 31 respectively project outward more than the left and right end portions of the fitting convex portion 32. The second insulator 30 has a fitting recess 33 that is recessed on the top surface of the fitting protrusion 32. The second insulator 30 has a guiding portion 34 formed so as to surround the fitting recess 33 over the upper edge of the fitting protrusion 32. The guide portion 34 is formed by an inclined surface that inclines obliquely inward and upward at the upper edge portion of the fitting protrusion 32.

  The second insulator 30 has a plurality of contact attachment grooves 35 formed side by side in the left-right direction. The plurality of contacts 60 are respectively attached to the plurality of contact attachment grooves 35. The number of contact attachment grooves 35 is the same as the number of contacts 60. The plurality of contact attachment grooves 35 extend in the vertical direction. The lower part of the contact attachment groove 35 is formed by recessing the lower part of the front surface and the rear surface of the second insulator 30. The central portion of the contact attachment groove 35 is formed in the inside of the second insulator 30. The upper portion of the contact mounting groove 35 is formed by recessing both inner surfaces in the front-rear direction of the fitting recess 33.

  The second insulator 30 has a wall portion 36 extending internally downward from the bottom surface of the fitting recess 33. The wall portion 36 is located between the pair of contacts 60 attached to the second insulator 30 in a state of being arranged in the front-rear direction. That is, the wall portion 36 faces the pair of contacts 60 respectively. The top of the wall 36 is formed the widest. The central portion of the wall 36 is formed narrower than the upper portion. The lower portion of the wall portion 36 is formed narrower than the central portion. The front and rear surfaces of the wall portion 36 constitute a part of the contact mounting groove 35. The central portion of the contact attachment groove 35 formed in the inside of the second insulator 30 becomes narrower as it goes from the lower side to the upper side with the change in the width of the central part and the upper part of the wall portion 36.

  The metal fitting 40 is formed by processing a thin plate of any metal material into a shape shown in FIG. 4 using a stamping die. The metal fitting 40 is disposed at each of the left and right ends of the first insulator 20. The metal fittings 40 are each formed substantially in an H shape in a front view from the left and right direction. The metal fitting 40 has a mounting portion 41 extending outward in a substantially U shape at the lower end portions of the front and rear sides thereof. The metal fitting 40 has a continuous portion 42 extending in the front-rear direction at a substantially central portion in the vertical direction. The metal fitting 40 has, in the continuous portion 42, a retaining portion 43 which protrudes in the left and right direction from the lower edge portion substantially at the center in the front and rear direction. The retaining portion 43 suppresses the upward removal of the second insulator 30 relative to the first insulator 20. The metal fitting 40 has locking portions 44 that lock to the first insulator 20 at upper end portions on both the front and rear sides thereof.

  The metal plate 50 is formed by processing a thin plate of any metal material into a shape shown in FIG. 4 using a stamping die. The metal plate 50 is disposed at each of the front and rear end portions of the first insulator 20. The metal plates 50 are each formed in a plate shape in a front view from the front and rear direction. The metal plate 50 has mounting portions 51 extending outward in a substantially L shape at lower end portions of the left and right ends thereof. The metal plate 50 extends in the vertical direction at the left and right end portions thereof, and has locking portions 52 that lock the first insulator 20. The metal plate 50 has a laterally extending ridge 53 that is outwardly raised on the outer surface. The metal plate 50 has two ridges 53 arranged in parallel at the top and bottom. The metal plate 50 has a bent portion 54 extending upward. The bending portion 54 is formed in a substantially J shape, and is bent from the inside to the outside.

  The contact 60 is formed of a thin sheet of spring-elastic copper alloy (for example, phosphor bronze, beryllium copper or titanium copper) or corson copper alloy into a shape shown in FIGS. 4 to 9 by using a stamping method. It is processed. The contacts 60 are formed only by punching. The method of processing the contact 60 is not limited to this, and may include the step of bending in the thickness direction after punching. The contact 60 is formed of a metal material having a small elastic coefficient so that the shape change caused by the elastic deformation is large. The surface of the contact 60 is plated with gold or tin after a base is formed by nickel plating.

  As shown in FIG. 4, a plurality of contacts 60 are arranged in the left-right direction. As shown in FIG. 7, the contact 60 is attached to the first insulator 20 and the second insulator 30. As shown in FIGS. 7 and 8, the pair of contacts 60 arranged at the same left and right positions are formed and arranged symmetrically along the front-rear direction. That is, the pair of contacts 60 are formed and arranged so as to be substantially line symmetrical with respect to the vertical axis passing through the center between them.

  The contact 60 has a first base portion 61 extending in the vertical direction and supported by the first insulator 20. The upper end portion of the first base 61 is locked to the first insulator 20. The contact 60 is formed continuously with the lower end portion of the first base portion 61 and has a locking portion 62 that locks to the first insulator 20. The first base portion 61 and the locking portion 62 are accommodated in the contact attachment groove 24 of the first insulator 20. The contact 60 has a mounting portion 63 extending outward in a substantially L shape from the outside of the lower end portion of the locking portion 62.

  As shown in FIG. 9, the contact 60 has an elastically deformable first elastic portion 64 </ b> A extending inward in the front-rear direction from the first base portion 61. The first elastic portion 64A extends inward obliquely downward from the first base portion 61, and then bends obliquely upward and extends linearly as it is. The first elastic portion 64A is bent downward again at its inner end, and is connected to the upper end of the adjustment portion 64B. The first elastic portion 64 </ b> A is formed narrower than the first base 61. By the above, the 1st elastic part 64A can adjust the part which carries out elastic displacement.

  The contact 60 has an adjusting portion 64B formed continuously with the first elastic portion 64A. The adjusting portion 64B is wider than the first elastic portion 64A, that is, has a larger cross-sectional area, and thus has higher electric conductivity than the first elastic portion 64A. The adjustment portion 64 </ b> B extends in the fitting direction with the connection object 70, that is, in the vertical direction, in a state where the contact 60 is not elastically deformed.

  The contact 60 extends from the lower end portion of the adjustment portion 64B to the second insulator 30, and has a second elastic portion 64C which can be elastically deformed. The second elastic portion 64C is bent obliquely upward from the lower end portion of the adjustment portion 64B and extends linearly as it is. The second elastic portion 64C is bent again obliquely downward, and is connected to an outer end portion of a second base portion 65 described later. Similar to the first elastic portion 64A, the second elastic portion 64C is formed narrower than the adjustment portion 64B. As described above, the second elastic portion 64C can adjust a portion to be elastically displaced.

  The first elastic portion 64A, the adjustment portion 64B and the second elastic portion 64C are integrally formed in a substantially crank shape. The first elastic portion 64A and the second elastic portion 64C are formed symmetrically with respect to the adjustment portion 64B. That is, the first elastic portion 64A and the second elastic portion 64C are formed so as to be substantially point-symmetrical to each other with respect to the center of the adjustment portion 64B.

  The first elastic portion 64A and the second elastic portion 64C respectively extend from both end sides in the fitting direction in the adjusting portion 64B. More specifically, the first elastic portion 64A extends from the inner end of the upper edge of the adjustment portion 64B. On the other hand, the second elastic portion 64C extends from the outer end of the lower edge of the adjustment portion 64B. Thus, the connection point between the first elastic portion 64A and the adjustment portion 64B and the connection point between the second elastic portion 64C and the adjustment portion 64B are formed at mutually symmetrical positions with respect to the center of the adjustment portion 64B. There is.

  As shown in FIGS. 7 and 8, the contact 60 has a second base 65 continuous with the second elastic portion 64C. The second base 65 is formed wider than the second elastic portion 64C in order to increase its rigidity. The contact 60 has an elastically deformable third elastic portion 66 extending upward from the second base 65 and disposed along the inner wall of the second insulator 30. The third elastic portion 66 extends in the fitting direction with the connection object 70, that is, in the vertical direction, in a state in which the third elastic portion 66 is not elastically deformed. The third elastic portion 66 opposes the wall portion 36 of the second insulator 30 formed on the inner side throughout. The contact 60 has a notch 67 formed on the surface of the third elastic portion 66 so as to constitute a bending point when the third elastic portion 66 elastically deforms. The cutout portion 67 is formed at a substantially central portion of the outer surface in the front-rear direction of the third elastic portion 66 with its surface cut off. The contact 60 is formed continuously above the third elastic portion 66 and has a locking portion 68 that locks to the second insulator 30. The locking portion 68 is formed wider than the third elastic portion 66. The contact 60 is formed continuously above the locking portion 68 and has an elastic contact portion 69 which contacts the contact 110 of the connection object 70 when fitted.

  As shown in FIG. 7, the second base portion 65, the third elastic portion 66, the notch portion 67 and the locking portion 68 are accommodated in the contact attachment groove 35 of the second insulator 30. The second base portion 65, the third elastic portion 66, and the locking portion 68 substantially face the wall portion 36 of the second insulator 30 which is formed on the inner side. As also shown in FIG. 6, the second base 65 connecting the second elastic portion 64 </ b> C and the third elastic portion 66 is disposed at a position facing the lower end portion of the wall portion 36.

  As shown in FIG. 7, the lower halves of the second base 65 and the third elastic portion 66 are accommodated in the lower portion of the contact attachment groove 35 configured as a recessed portion of the front surface and the rear surface of the second insulator 30. The upper half portion of the third elastic portion 66 and the locking portion 68 are accommodated in the central portion of the contact attachment groove 35 formed by the inside of the second insulator 30. The notch portion 67 is formed on the surface of the third elastic portion 66 so as to be located in the vicinity of the boundary between the lower portion of the contact attachment groove 35 and the central portion thereof.

  The elastic contact portion 69 is substantially accommodated in the upper portion of the contact attachment groove 35 configured as a recessed portion of the inner surface of the fitting recess 33 of the second insulator 30. The tip of the resilient contact portion 69 is exposed from the contact attachment groove 35 into the fitting recess 33.

  FIG. 10 is a schematic view showing a state of impedance change in the first elastic portion 64A, the adjustment portion 64B and the second elastic portion 64C of the contact 60. As shown in FIG. The function of the adjustment unit 64B will be described with reference to FIG. In FIG. 10, the vertical axis indicates the magnitude of impedance. The horizontal axis indicates the position at the contact 60. The solid line graph shows the measured value of impedance. The dashed line shows the ideal value of the impedance.

  The impedances of the entire first elastic portion 64A, the adjusting portion 64B and the second elastic portion 64C are adjusted by the adjusting portion 64B. In the contact 60, the first elastic portion 64A is formed narrow (the cross-sectional area is narrow) in order to obtain a large amount of elastic deformation, whereby the impedance adjusted to the ideal value increases in the first elastic portion 64A. . By forming the adjusting portion 64B wide (in cross section large) continuously with the first elastic portion 64A, the impedance increased in the first elastic portion 64A is intentionally made smaller than the ideal value in the adjusting portion 64B. . The second elastic portion 64C continuous with the adjustment portion 64B is formed to be narrow (the cross-sectional area is narrow) similarly to the first elastic portion 64A, so that the impedance which was lower than the ideal value in the second elastic portion 64C. It exceeds the ideal value again. As described above, the adjustment unit 64B plays a role of offsetting the increase in impedance in the first elastic portion 64A and the second elastic portion 64C and bringing the average value of the entire impedance closer to the ideal value.

  In the connector 10 having the above-described structure, the mounting portion 63 of the contact 60 is soldered to the circuit pattern formed on the mounting surface of the circuit board CB1. The mounting portion 41 of the fitting 40 and the mounting portion 51 of the metal plate 50 are soldered to the ground pattern or the like formed on the mounting surface. Thus, the connector 10 is mounted on the circuit board CB1. An electronic component (for example, a CPU, a controller, a memory, or the like) different from the connector 10 is mounted on the mounting surface of the circuit board CB1.

  The structure of the connection object 70 will be described mainly with reference to FIGS. 11 and 12.

  FIG. 11 is an external perspective view showing the connection object 70 connected with the connector 10 of FIG. 3 in a top view. 12 is an exploded perspective view of the connection object 70 of FIG. 11 as viewed from above.

  As shown in FIG. 12, the connection object 70 has an insulator 80, a metal fitting 90, a metal plate 100, and a contact 110 as large components. The connection object 70 is assembled by press fitting the fitting 90 and the contact 110 from the lower side of the insulator 80 and pressing the metal plate 100 on the outer surface of the insulator 80.

  The insulator 80 is a quadrangular prism-shaped member obtained by injection molding of an insulating and heat resistant synthetic resin material. The insulator 80 has a fitting recess 81 formed on the upper surface. The insulator 80 has a fitting protrusion 82 formed inside the fitting recess 81. The insulator 80 has a guiding portion 83 formed to surround the fitting recess 81 over the upper edge of the fitting recess 81. The guiding portion 83 is formed by an inclined surface which is inclined obliquely outward toward the upper side at the upper edge portion of the fitting recess 81. The insulator 80 has a recess 84 recessed in each of the front and rear surfaces. The metal plate 100 is attached to the recess 84.

  The insulator 80 has a plurality of contact attachment grooves 85 which are formed on the front and rear sides of the bottom and on the front and rear surfaces of the fitting protrusion 82. The plurality of contacts 110 are respectively attached to the plurality of contact attachment grooves 85. The number of contact attachment grooves 85 is the same as the number of contacts 110. The plurality of contact attachment grooves 85 are recessed in line in the left-right direction.

  The metal fitting 90 is formed by processing a thin plate of any metal material into a shape shown in FIG. 12 using a stamping die. The metal fittings 90 are disposed at the left and right ends of the insulator 80 respectively. The metal fitting 90 has a mounting portion 91 extending outward in a substantially U-shape at its lower end. The metal fitting 90 is formed continuously with the mounting portion 91 and has a locking portion 92 that locks onto the insulator 80.

  The metal plate 100 is formed by processing a thin plate of any metal material into a shape shown in FIG. 12 using a stamping die (stamping). The metal plate 100 is disposed at each of the front and rear end portions of the insulator 80. The metal plate 100 is formed in a plate shape in a front view from the front and rear direction. The metal plate 100 has a mounting portion 101 extending outward in a substantially L shape at lower end portions of both left and right ends. The metal plate 100 extends in the vertical direction at the left and right end portions thereof, and has locking portions 102 that lock the insulator 80. The metal plate 100 has a laterally extending ridge 103 that is outwardly raised on the outer surface. The metal plate 100 has three ridges 103 arranged vertically in parallel.

  The contact 110 is formed by processing a thin plate of a spring-elastic copper alloy (for example, phosphor bronze, beryllium copper or titanium copper) or a corson copper alloy into a shape shown in FIG. 12 using a stamping (stamping) It is. The surface of the contact 110 is plated with gold or tin after a base is formed by nickel plating.

  A plurality of contacts 110 are arranged along the left-right direction. The contact 60 has a mounting portion 111 extending outward in a substantially L shape. The contact 110 is formed at the upper end thereof and has a contact portion 112 which contacts the elastic contact portion 69 of the contact 60 of the connector 10 when fitted.

  In the connection object 70 having the above-described structure, the mounting portion 111 of the contact 110 is soldered to the circuit pattern formed on the mounting surface of the circuit board CB2. The mounting portion 91 of the fitting 90 and the mounting portion 101 of the metal plate 100 are soldered to the ground pattern or the like formed on the mounting surface. As described above, the connection object 70 is mounted on the circuit board CB2. On the mounting surface of the circuit board CB2, an electronic component (for example, a camera module or a sensor) other than the connection object 70 is mounted.

  The operation of the connector 10 having a floating structure when connecting the connection object 70 to the connector 10 will be described.

  FIG. 13 is a cross-sectional view taken along line XIII-XIII in FIG.

  The contacts 60 of the connector 10 support the second insulator 30 in a state where the second insulator 30 is separated from the first insulator 20 and floats inside the first insulator 20. At this time, the lower portion of the second insulator 30 is surrounded by the outer peripheral wall 22 of the first insulator 20. The upper portion of the second insulator 30 including the fitting recess 33 protrudes upward from the opening 21A of the first insulator 20.

  By mounting the mounting portion 63 of the contact 60 to the circuit board CB1, the first insulator 20 is fixed to the circuit board CB1. The second insulator 30 can move relative to the fixed first insulator 20 by elastically deforming the first elastic portion 64A, the second elastic portion 64C, and the third elastic portion 66 of the contact 60.

  At this time, the peripheral portion of the opening 21A restricts excessive movement of the second insulator 30 with respect to the first insulator 20. That is, when the second insulator 30 moves by a large amount beyond the design value due to the elastic deformation of the contact 60, the fitting convex portion 32 of the second insulator 30 contacts the peripheral portion of the opening 21A. As a result, the second insulator 30 does not move further outward.

  In the state where the vertical direction of the connection object 70 is reversed with respect to the connector 10 having such a floating structure, the front and back positions and the left and right positions of the connector 10 and the connection object 70 are substantially matched, Make them face each other. Thereafter, the connection object 70 is moved downward. At this time, even if the positions thereof are slightly shifted in the front-rear and left-right directions, for example, the guiding portion 34 of the connector 10 and the guiding portion 83 of the connection object 70 contact each other. As a result, the second insulator 30 moves relative to the first insulator 20 due to the floating structure of the connector 10. More specifically, the fitting projection 32 of the connector 10 is drawn into the fitting recess 81 of the connection object 70.

  When the connection object 70 is further moved downward, the fitting convex portion 32 of the connector 10 and the fitting recess 81 of the connection object 70 fit. At this time, the fitting recess 33 of the connector 10 and the fitting projection 82 of the connection object 70 are fitted. With the second insulator 30 of the connector 10 and the insulator 80 of the connection object 70 fitted, the contact 60 of the connector 10 and the contact 110 of the connection object 70 contact each other. More specifically, the resilient contact 69 of the contact 60 and the contact 112 of the contact 110 contact each other. At this time, the tip of the elastic contact portion 69 of the contact 60 is slightly elastically deformed outward, and elastically displaced toward the inside of the contact attachment groove 35.

  Thus, the connector 10 and the connection object 70 are completely connected. At this time, the circuit board CB1 and the circuit board CB2 are electrically connected via the contacts 60 and the contacts 110.

  In this state, the pair of elastic contact portions 69 of the contact 60 sandwiches the pair of contacts 110 of the connection object 70 from the front and rear sides by the elastic force toward the inside along the front-rear direction. When the connection object 70 is removed from the connector 10 by the reaction of the pressing force to the contact 110 of the connection object 70 generated by this, the second insulator 30 has a force in the removal direction, that is, the upward direction via the contact 60. Receive Thereby, even if the second insulator 30 moves upward, the retaining portion 43 of the metal fitting 40 press-fit into the first insulator 20 shown in FIG. 4 suppresses the detachment of the second insulator 30. The retaining portions 43 of the metal fitting 40 press-fit into the first insulator 20 are located immediately above the left and right end portions of the bottom portion 31 of the second insulator 30 in the first insulator 20. Therefore, when the second insulator 30 attempts to move upward, the left and right end portions of the bottom portion 31 protruding outward contact the retaining portions 43. As a result, the second insulator 30 does not move further upward.

  FIG. 14 is a schematic view showing a first example in which the pair of contacts 60 are elastically deformed. FIG. 15 is a schematic view showing a second example in which the pair of contacts 60 are elastically deformed.

  The operation of each component when the pair of contacts 60 elastically deform will be described in detail with reference to FIGS. 14 and 15. In the following, for convenience of description, the contact 60 disposed on the right side of each drawing will be referred to as the contact 60A, and the contact 60 disposed on the left side of each drawing will be described as the contact 60B. In FIGS. 14 and 15, a state in which the contacts 60A and 60B are not elastically deformed is shown by a two-dot chain line.

  In FIG. 14, as an example, it is assumed that the second insulator 30 moves to the right due to some external factor.

  When the second insulator 30 moves in the right direction, the locking portion 68 of the contact 60A is pushed in the right direction by the wall portion 36 of the second insulator 30. At this time, the third elastic portion 66 of the contact 60A bends inward from the vicinity of the notch 67 as a starting point. That is, the third elastic portion 66 of the contact 60A elastically deforms inward at the lower side than the vicinity of the cutout portion 67 as compared with the upper portion. The locking portion 68 of the contact 60A in contact with the wall portion 36 of the second insulator 30 hardly changes the relative position with respect to the second insulator 30, while the second base 65 of the contact 60A has its relative position Change to the inside.

  When the third elastic portion 66 of the contact 60A moves to the right, the connection point between the second elastic portion 64C and the adjustment portion 64B also moves to the right while the second elastic portion 64C elastically deforms. On the other hand, the change in the lateral position of the connection point between the first elastic portion 64A and the adjustment portion 64B is small. Therefore, the first elastic portion 64A elastically deforms, the bent portion at the inner end bends outward, and the adjustment portion 64B inclines obliquely downward to the right from above.

  When the second insulator 30 moves to the right, the locking portion 68 of the contact 60B is pushed to the right by the inner wall of the second insulator 30. At this time, the third elastic portion 66 of the contact 60B bends outward starting from the vicinity of the notch 67. That is, the third elastic portion 66 of the contact 60B elastically deforms further outward on the lower side than the vicinity of the cutout portion 67 as compared with the upper portion. The locking portion 68 of the contact 60B in contact with the inner wall of the contact mounting groove 35 hardly changes the relative position with respect to the second insulator 30, while the second base 65 of the contact 60B makes the relative position outward. Change.

  When the third elastic portion 66 of the contact 60B moves to the right, the connection point between the second elastic portion 64C and the adjustment portion 64B also moves to the right while the second elastic portion 64C elastically deforms. On the other hand, the change in the lateral position of the connection point between the first elastic portion 64A and the adjustment portion 64B is small. Therefore, the first elastic portion 64A is elastically deformed, the bent portion at the inner end thereof is bent inward, and the adjusting portion 64B is inclined diagonally rightward from the upper side to the lower side.

  In FIG. 15, as an example, it is assumed that the second insulator 30 moves in the left direction due to some external factor.

  When the second insulator 30 moves leftward, the locking portion 68 of the contact 60A is pushed leftward by the inner wall of the second insulator 30. At this time, the third elastic portion 66 of the contact 60A bends outward starting from the vicinity of the notch 67. That is, the third elastic portion 66 of the contact 60A elastically deforms further outward on the lower side than the vicinity of the cutout portion 67 as compared with the upper portion. The locking portion 68 of the contact 60A in contact with the inner wall of the contact mounting groove 35 hardly changes the relative position with the second insulator 30, while the second base 65 of the contact 60A makes the relative position outward. Change.

  When the third elastic portion 66 of the contact 60A moves in the left direction, the connection point between the second elastic portion 64C and the adjustment portion 64B also moves in the left direction while the second elastic portion 64C elastically deforms. On the other hand, the change in the lateral position of the connection point between the first elastic portion 64A and the adjustment portion 64B is small. Therefore, the first elastic portion 64A elastically deforms, the bent portion at the inner end bends inward, and the adjusting portion 64B inclines obliquely leftward from the upper side to the lower side.

  When the second insulator 30 moves in the left direction, the locking portion 68 of the contact 60B is pushed in the left direction by the wall portion 36 of the second insulator 30. At this time, the third elastic portion 66 of the contact 60B bends inward from the vicinity of the notch 67 as a starting point. That is, the third elastic portion 66 of the contact 60B elastically deforms inward at the lower side than the vicinity of the cutout portion 67 as compared with the upper portion. The locking portion 68 of the contact 60B in contact with the wall portion 36 of the second insulator 30 hardly changes the relative position with respect to the second insulator 30, while the second base 65 of the contact 60B has its relative position Change to the inside.

  When the third elastic portion 66 of the contact 60B moves in the left direction, the connection point between the second elastic portion 64C and the adjustment portion 64B also moves in the left direction while the second elastic portion 64C elastically deforms. On the other hand, the change in the lateral position of the connection point between the first elastic portion 64A and the adjustment portion 64B is small. Therefore, the first elastic portion 64A elastically deforms, the bent portion at the inner end portion thereof bends outward, and the adjustment portion 64B inclines obliquely leftward from the upper side to the lower side.

  The connector 10 according to the embodiment as described above can have both a good floating structure and good transmission characteristics in signal transmission. In the connector 10, the contact 60 having the adjusting portion 64B increases the width of the transmission path, that is, the cross-sectional area of the transmission path, and the impedance decreases. As a result, the average value of the impedances of the first elastic portion 64A, the adjustment portion 64B, and the second elastic portion 64C as a whole approaches the ideal value. That is, the connector 10 can contribute to impedance matching. Therefore, in the connector 10, desired transmission characteristics can be obtained even in large-capacity and high-speed transmission, and the transmission characteristics can be improved as compared to the conventional electrical connector without the adjusting unit 64B.

  In the connector 10, the contact 60 further includes the third elastic portion 66, whereby the amount of movement of the second insulator 30 relative to the first insulator 20 can be further increased. That is, in addition to the elastic deformation of the first elastic portion 64A and the second elastic portion 64C, the elastic deformation of the third elastic portion 66 causes the movement amount of the second insulator 30 relative to the first insulator 20 to increase. Conversely, since the connector 10 can allocate a part of the amount of elastic deformation of the contact 60 necessary for obtaining a predetermined amount of movement to the third elastic portion 66, the first elastic portion 64A and The amount of elastic deformation of the elastic portion 64C can be reduced. As a result, the overall lengths of the first elastic portion 64A, the adjusting portion 64B, and the second elastic portion 64C are shortened, and the width in the front-rear direction of the connector 10 is shortened. Therefore, the connector 10 can contribute to downsizing while securing the required amount of movement of the second insulator 30.

  By shortening the total length of the first elastic portion 64A, the adjustment portion 64B, and the second elastic portion 64C, the transmission characteristics of the connector 10 are further improved. That is, by shortening the signal transmission path, the connector 10 can transmit even a high frequency signal in a state where the transmission loss is reduced.

  The connector 10 has the wall portion 36 at a position where the second insulator 30 faces the second base portion 65, so that the contact between the pair of contacts 60 symmetrically arranged in the front-rear direction in FIG. 7 can be suppressed. As described above, the second base 65 connecting the second elastic portion 64C and the third elastic portion 66 is, for example, in the front-rear direction of FIG. 7 along with the elastic deformation of the second elastic portion 64C and the third elastic portion 66. Move along. At this time, assuming that the wall portion 36 is not formed in the second insulator 30, there is a possibility that the second base portions 65 of the pair of front and rear contacts 60 come in contact with each other according to the elastically deformed state. By forming the wall portion 36, the connector 10 can suppress such contact between the second base portions 65, and can suppress mechanically caused defects such as electrically shorted defects and breakage. In other words, the connector 10 can restrict excessive elastic deformation of the third elastic portion 66 by the formation of the wall portion 36. The connector 10 can ensure the reliability as a product even in a situation where the second base 65 moves with the elastic deformation of the second elastic portion 64C and the third elastic portion 66.

  In the connector 10, the required amount of movement of the adjustment portion 64B can be secured by the first elastic portion 64A and the second elastic portion 64C extending from both ends in the fitting direction in the adjustment portion 64B. Therefore, the connector 10 can ensure the required amount of movement of the second insulator 30. In the connector 10, the first elastic portion 64A, the adjusting portion 64B and the second elastic portion 64C are integrally formed in a substantially crank shape, so that the above-described effects can be achieved while shortening the front-rear length in FIG. It can contribute. For example, the first elastic portion 64A extends from the inner end of the upper edge of the adjustment portion 64B, and the second elastic portion 64C extends from the outer end of the lower edge of the adjustment portion 64B. Thereby, the front-back length of the connector 10 whole is shortened. Furthermore, the elastically deformable portions of the first elastic portion 64A and the second elastic portion 64C can be made longer in a limited region in the first insulator 20, and a favorable floating structure can be obtained.

  The first elastic portion 64A, the adjustment portion 64B, and the second elastic portion 64C are arranged in order from the fitting side along the fitting direction, whereby the second base 65 connected to the second elastic portion 64C is the largest. It is located below. Thereby, the third elastic portion 66 can be stretched and elastically deformed more greatly. As a result, the amount of movement of the second insulator 30 relative to the first insulator 20 is increased.

  With the connector 60 further including the notch portion 67, the force applied to the locking portion 68 in contact with the inner wall of the second insulator 30 can be suppressed when the second insulator 30 moves. Similarly, the connector 10 can suppress the force applied to the elastic contact portion 69 located above the contact attachment groove 35. That is, the connector 10 can bend the third elastic portion 66 on the lower side than the vicinity of the cutout portion 67. More specifically, in the connector 10, in the third elastic portion 66, the amount of elastic deformation of the lower half portion is larger than that of the upper half portion from the lower end portion of the locking portion 68 to the vicinity of the notch portion 67. . As described above, in a state in which the locking of the locking portion 68 with respect to the second insulator 30 and the contact of the elastic contact portion 69 with the contact portion 112 are stable, the third elastic portion 66 is moved by the movement of the second insulator 30 with respect to the first insulator 20. It can contribute.

  Since the contact 60 is formed of a metal material having a small elastic coefficient, the connector 10 can ensure the required amount of movement of the second insulator 30 even when the force applied to the second insulator 30 is small. . That is, the second insulator 30 can move smoothly with respect to the first insulator 20. As a result, the connector 10 can easily absorb misalignment when fitting with the connection object 70. In the connector 10, each elastic portion of the contact 60 absorbs vibration generated due to some external factor. As a result, since a large force is not applied to the mounting portion 63, the connector 10 can suppress breakage of the connection portion with the circuit board CB1. Thus, even in the state where the connector 10 is connected to the connection object 70, the connection reliability can be maintained.

  The connector 10 can improve the assemblability of a product by having the 2nd base 65 in which the contact 60 was formed widely. That is, the rigidity of the said part increases by forming the 2nd base 65 wide. Thereby, the contact 60 is stably inserted from the lower side of the first insulator 20 and the second insulator 30 by the assembling device or the like with the second base 65 as a fulcrum.

  The metal fitting 40 is press-fit into the first insulator 20, and the mounting portion 41 is soldered to the circuit board CB1, whereby the metal fitting 40 can stably fix the first insulator 20 to the circuit board CB1. That is, the mounting strength of the first insulator 20 with respect to the circuit board CB1 is improved by the metal fitting 40.

  By attaching the metal plate 50 to the recess 23 of the first insulator 20, the strength of the connector 10 in the front-rear direction is increased. Since the metal plate 50 has the raised portions 53, the rigidity of the metal plate 50 itself is increased, and as a result, the strength of the connector 10 in the front-rear direction is also increased. By providing the bent portion 54 with the metal plate 50 protruding upward, the connector 10 can reduce the possibility of foreign matter mixing into the opening 21A from the front-rear direction of the first insulator 20.

  It will be apparent to those skilled in the art that the present invention can be realized in other predetermined forms other than the above-described embodiment without departing from the spirit or essential characteristics thereof. Accordingly, the above description is illustrative and not restrictive. The scope of the invention is defined by the appended claims rather than by the foregoing description. It is intended that any and all changes that come within the scope of the equivalents be included therein.

  For example, the shape, arrangement, number, and the like of each component described above are not limited to the contents described above and illustrated in the drawings. The shape, arrangement, number and the like of each component may be arbitrarily configured as long as the function can be realized. The method of assembling the connector 10 and the connection object 70 described above is not limited to the contents of the above description. The method of assembling the connector 10 and the connection object 70 may be any method as long as they can be assembled so as to exert their respective functions. For example, the metal fitting 40, the metal plate 50 or the contact 60 may be integrally formed with the first insulator 20 or the second insulator 30 by insert molding instead of press fitting.

  In the adjustment unit 64B, the width of the transmission line, that is, the cross-sectional area of the transmission line is increased to reduce the impedance, and the electrical conductivity is improved. However, the configuration of the adjustment unit 64B for improving the electrical conductivity is It is not limited to. The adjustment unit 64B may have any configuration that improves the electrical conductivity. For example, the adjusting portion 64B may be formed thicker than the first elastic portion 64A with the same width. For example, the adjustment portion 64B may be formed of a material having higher electrical conductivity than the first elastic portion 64A while maintaining the same cross-sectional area. For example, the adjusting unit 64B may have plating for improving the electrical conductivity on the surface while keeping the same cross-sectional area as the first elastic unit 64A.

  The connector 10 may not have the third elastic portion 66 as long as it can contribute to the miniaturization of the connector 10 while securing the required amount of movement of the second insulator 30.

  The connector 10 does not have the cutout portion 67 if the third elastic portion 66 can contribute to the movement of the second insulator 30 in a state where the locking of the locking portion 68 and the contact of the elastic contact portion 69 are stable. It is also good.

  The second base 65 is described as being formed wider than the second elastic portion 64C, but is not limited thereto. The second base 65 may not be wide as long as the assemblability of the connector 10 can be maintained. Although the wall portion 36 has been described as extending internally downward from the bottom surface of the fitting recess 33, the present invention is not limited thereto. The wall portion 36 may be formed, for example, only at a position facing the second base portion 65 as long as contact between the pair of contacts 60 can be suppressed.

  The adjusting portion 64B extends in the fitting direction with the connection object 70 in a state where the first elastic portion 64A and the second elastic portion 64C are not elastically deformed, and the first elastic portion 64A and the second elastic portion 64C are adjusting portions In 64B, it demonstrated as extending out from the both ends of the fitting direction, respectively. Not limited to this, the overall shapes of the first elastic portion 64A, the adjustment portion 64B and the second elastic portion 64C can contribute to the miniaturization of the connector 10 while securing the required amount of movement of the second insulator 30. If it is, it may be of any shape. For example, the adjustment unit 64B may extend in a state of being shifted from the fitting direction. For example, the first elastic portion 64A and the second elastic portion 64C may extend from both ends in the front-rear direction in FIG. 7 in the adjustment portion 64B. For example, the shapes of the first elastic portion 64A and the second elastic portion 64C may be arbitrary, and each may have more bends. For example, the overall shapes of the first elastic portion 64A, the adjusting portion 64B, and the second elastic portion 64C may be substantially U-shaped instead of substantially crank-shaped.

  Although the 1st elastic part 64A, adjustment part 64B, and the 2nd elastic part 64C were explained as being arranged in order from the fitting side along the fitting direction as shown in Drawing 8, it is not limited to this. The first elastic portion 64A, the adjustment portion 64B, and the second elastic portion 64C can be disposed in order from the opposite side as long as they can contribute to the miniaturization of the connector 10 while securing the required movement amount of the second insulator 30. It may be done.

  Although the first elastic portion 64A and the second elastic portion 64C are described as being formed narrower than the first base 61, the present invention is not limited to this. The first elastic portion 64A and the second elastic portion 64C may have any configuration that can ensure the required amount of elastic deformation. For example, the first elastic portion 64A or the second elastic portion 64C may be formed of a metal material having a smaller elastic modulus than the other portions of the contact 60.

  Although the contact 60 is described as being formed of a metal material having a small elastic modulus, it is not limited thereto. The contact 60 may be formed of a metal material having any elastic coefficient as long as the required amount of elastic deformation can be secured.

  Although the connection object 70 has been described as a plug connector connected to the circuit board CB2, the present invention is not limited to this. The connection object 70 may be any object other than the connector. For example, the connection object 70 may be an FPC, a flexible flat cable (FFC), a rigid substrate, or the like.

  The connector 10 as described above is mounted on an electronic device. The electronic device includes, for example, any on-vehicle device such as a camera, a radar, a drive recorder or an engine control unit. The electronic device includes, for example, any in-vehicle device used in an in-vehicle system such as a car navigation system, an advanced driving support system or a security system. The electronic device includes, for example, any information device such as a personal computer, a copier, a printer, a facsimile, or a multifunction device. Besides, the electronic device includes any industrial device.

  Such electronic devices have good transmission characteristics in signal transmission. Since the positional deviation between the substrates is absorbed by the good floating structure of the connector 10, the workability at the time of assembling the electronic device is improved. That is, the manufacture of the electronic device is facilitated. Since the connector 10 suppresses the breakage of the connection portion with the circuit board CB1, the reliability as a product of the electronic device is improved.

DESCRIPTION OF SYMBOLS 10 connector 20 1st insulator 21A, 21B opening 22 outer peripheral wall 23 recessed part 24 contact mounting groove 30 2nd insulator 31 bottom part 32 fitting convex part 33 fitting recessed part 34 recessed part 35 contact mounting groove 36 wall part 40 metal fitting 41 mounting part 42 Continuous part 43 Locking part 44 Locking part 50 Metal plate 51 Mounting part 52 Locking part 53 Protrusive part 54 Bent part 60, 60A, 60B Contact 61 1st base 62 Locking part 63 Mounting part 64A 1st elastic part 64B Adjustment part 64C Second elastic portion 65 Second base portion 66 Third elastic portion 67 Notched portion 68 Locking portion 69 Elastic contact portion (contact portion)
70 connection object 80 insulator 81 fitting recess 82 fitting protrusion 83 guiding section 84 recess 85 contact mounting groove 90 bracket 91 mounting section 92 locking section 100 metal plate 101 mounting section 102 locking section 103 protruding section 110 contact 111 mounting Part 112 Contact part CB1, CB2 Circuit board

Claims (11)

A first insulator formed in a frame shape;
A second insulator disposed inside the first insulator, movable relative to the first insulator, and fitted with the connection object;
A plurality of contacts attached to the first insulator and the second insulator;
Equipped with
The contact includes a first elastic portion elastically deformable, an adjustment portion, and a second elastic portion elastically deformable between the first insulator and the second insulator.
In plan view in the arrangement direction of the plurality of contacts, the width of the adjustment portion in the direction orthogonal to the extension direction of the adjustment portion is the width of the first elastic portion in the direction orthogonal to the extension direction of the first elastic portion. And a width of the second elastic portion in a direction orthogonal to the extension direction of the second elastic portion,
connector. The contact has a first base disposed along the first insulator and a second base disposed along the second insulator,
The first elastic portion extends from the first base toward the second insulator,
The second elastic portion extends from the adjustment portion to the second insulator.
The connector according to claim 1. The adjustment unit extends the width of the first elastic portion more than the width of the first elastic portion in the fitting direction between the second insulator and the connection target and the width of the second elastic portion in the fitting direction. Wide in the direction,
The connector according to claim 2. The first elastic portion, the adjusting portion, and the second elastic portion are formed flat in the arrangement direction orthogonal to the fitting direction and the extending direction.
The connector according to claim 3. The contact includes an elastically deformable third elastic portion disposed along the inner wall of the second insulator and extending in a fitting direction between the second insulator and the connection target.
The connector according to any one of claims 2 to 4. The second base connects the second elastic portion and the third elastic portion.
The connector according to claim 5. The second insulator includes a wall formed at a position facing the second base.
The connector according to claim 6. In a fitted state in which the second insulator and the connection object are fitted, a contact portion electrically contacting the connection object is provided.
The contact portion is formed at an end of a portion which is continuous with the third elastic portion in the fitting direction.
The connector according to any one of claims 5 to 7. The adjustment portion extends in a fitting direction between the second insulator and the connection object.
The first elastic portion and the second elastic portion respectively extend from both end sides in the fitting direction in the adjustment portion.
The connector according to any one of claims 1 to 8. The first elastic portion, the adjustment portion, and the second elastic portion are disposed in order from the fitting side along the fitting direction.
The connector according to claim 9.   An electronic device comprising the connector according to any one of claims 1 to 10.

Images