JP6543961B2 - Connector, camera device and electronic apparatus provided with the same - Google Patents

Description

  The present invention relates to a connector used when connecting a cable to an electronic device and a camera apparatus provided with the same.

  Conventionally, for example, in an on-vehicle camera device as a back monitor mounted in a car and imaging a rear, an imaging element such as a CCD (Charge Coupled Device) is mounted on a circuit board housed in a housing. An optical system such as a lens is disposed on the front side of the housing. The light introduced to the inside of the casing from the outside of the casing via the optical system is received by the imaging device, whereby the imaging operation of the camera device is performed.

  The circuit board is provided with an input / output terminal (hereinafter referred to as "circuit terminal") for inputting and outputting an electrical signal such as an imaging signal from the imaging device. The circuit terminal is connected to a connector terminal that penetrates a part of the housing, and the connector terminal is connected to a mating connector provided on the cable, whereby external devices and electricity outside the camera device such as a display device in a car and the like are connected. Connected.

  In such an on-vehicle camera device, the positional relationship between the optical axis of the optical system and the optical axis of the imaging device mounted on the circuit board may be adjusted. Therefore, by supporting the circuit board with a mechanism (a known floating mechanism) for moving the circuit board along a plane perpendicular to the optical axis of the optical system inside the housing, the optical axis of the imaging device and the light of the optical system The positional relationship with the axis can be adjusted. For this reason, the circuit terminals of the circuit board and the connector terminals can not be fixedly connected inside the housing, and may be connected via a harness, a flexible flat cable (FFC), a flexible printed circuit (FPC), etc. As shown in Patent Document 1, connection is made via a block-like conductive elastic body.

  In the camera device of Patent Document 1, a conductive elastic body is sandwiched between a circuit terminal of a circuit board on which an imaging element is mounted and a harness as an external terminal. The conductive elastic body is formed by embedding a conductor formed of a metal fine wire in a columnar insulating elastic body, and is fitted so as to be exposed on both the side of the housing portion for housing the circuit board and the housing portion for housing the external terminal. It is fixed. In the conductive elastic body, the conductor made of metal fine wire is in contact with the circuit terminal at the end portion located on the end face on the side of the housing portion for housing the circuit board, and the circuit terminal and the harness are electrically connected via the conductor It is connected to the. Thus, in Patent Document 1, even if the circuit board provided with the circuit terminals moves along a plane perpendicular to the optical axis of the optical system in the housing, the circuit terminals and the conductors connected to the connector terminals are If the displacement is relatively small, the connection between the circuit terminal and the connector terminal is maintained.

JP, 2014-075229, A

  By the way, it is connected to the circuit terminal of a circuit board, and an external terminal by simple composition, without using a columnar conductive elastic body of complicated composition which embedded a metal fine wire like a patent document 1 in a camera device. The floating amount (position adjustment amount) of the circuit board is increased while maintaining the contact state with the connector terminal, and the position adjustment between the optical axis of the optical system and the optical axis of the imaging device on the circuit board is easily performed. A structure that can be used is desired. Patent Document 1 does not disclose floating of the circuit terminals with respect to the metal thin wires, in particular, floating in opposite directions (contact directions) of each other. Moreover, since it is a columnar conductive elastic body, the thickness in the thickness direction of the substrate is relatively thick.

  The present invention has been made in view of such a point, and while the displaceable circuit board is easily displaced, the circuit terminals of the circuit board and the connector terminals can be stably and suitably connected with a simple configuration, and the size is small. It is an object of the present invention to provide a connector that can contribute to reduction in weight and a camera device provided with the same.

One aspect of the connector according to the present invention is a circuit terminal portion including a terminal which is mounted on a circuit board on which an imaging element is mounted and which is accommodated displaceably in a housing, and which includes a terminal connected to the imaging element; And a planar connector housing which is disposed opposite to the circuit terminal portion in the thickness direction of the circuit board and which constitutes one wall portion of the housing, and which penetrates the connector housing. A rod-shaped body having conductivity, and a connector terminal contacting the circuit terminal portion at an end face on the circuit board side, the housing for holding an optical system including a lens A box-shaped front case for housing the holder portion; and a box-shaped rear case for closing the opening of the front case, wherein the connector housing is configured as a rear face of the rear case The connector terminal, the provided on the rear case, said circuit terminal portion, the circuit is a direction biased in the connector housing side Ri by the urging force of the elastic deformation portion along the optical axis direction of the optical system a displaceable contact unit in the thickness direction of the substrate, said contact portion, said at the thickness direction along the optical axis, the end face of the connector terminals in contact with the end face while pressing the connector housing side Moving the circuit board in the housing away from the inner circumferential surface of the housing and between the holder portion and the connector housing in the thickness direction and a direction orthogonal to the thickness direction A configuration is adopted in which the connector terminal is electrically connected while being held in a possible floating state .

Box one embodiment of the camera apparatus of the present invention, there is provided a camera apparatus including a connector of the above construction is the front case, and, for accommodating the holder portion for holding the optical system including the lens and Jo camera front case, said a rear case, and, as to close the opening of the camera front case has a box-shaped camera rear case for accommodating the circuit board, the connector of the connector housing Is configured as a rear surface portion of the camera rear case, and the circuit board is disposed in contact with the holder portion on the outer peripheral side of the optical axis so as to be orthogonal to the optical axis of the optical system connector terminals are arranged along an optical axis of the optical system, the contact portion of the circuit terminal portion, in the thickness direction intends along the optical axis of the optical system, before the connector terminal The end face is pressed against the connector housing side, the circuit board is pressed against the holder portion in the direction along the optical axis, between the connector housing and the holder portion, the structure is held in the floating state take.
In one aspect of the electronic device of the present invention, a housing, a circuit board mounted with an imaging device and mounted displaceably in the housing, attached to the circuit board, and connected to the imaging device Are arranged in the thickness direction of the circuit board on the circuit terminal portion including the terminals to be connected and the surface of the circuit board to which the circuit terminal portion is attached, and which forms one wall portion of the housing The connector housing, and a conductive rod-shaped body penetrating through the connector housing, and the connector terminal contacting the circuit terminal portion at the end face on the circuit board side; The body has a box-like front case for accommodating a holder for holding an optical system including a lens, and a box-like rear case for closing the opening of the front case, and the connector housing is The connector terminal is provided on the rear case, and the circuit terminal portion is biased toward the connector housing by the biasing force of the elastically deformable portion in the optical axis direction of the optical system. It has a contact portion which can be displaced in the thickness direction of the circuit board which is a direction along, and the contact portion contacts the end surface while pressing the end surface of the connector terminal to the connector housing side in the thickness direction. Thus, the circuit board is separated from the inner circumferential surface of the housing by the biasing force in the housing, and between the holder portion and the connector housing, in the thickness direction and the thickness. The connector terminal is electrically connected to the connector terminal while being held in a floating state movable in a direction perpendicular to the direction.

  According to the present invention, the end face of the rod-like connector terminal connected to the cable abuts on the circuit terminal attached to the displaceable circuit board in the thickness direction of the circuit board to elastically deform the circuit terminal in the thickness direction Let Thus, while displacing the circuit board in the thickness direction of the circuit board as well as in the direction orthogonal to the thickness direction of the circuit board, the circuit terminals of the circuit board and the connector terminals are stably and preferably electrically connected with a simple configuration. In addition, the overall configuration can be reduced in size and weight, and the size and weight can be reduced.

Sectional view of a camera apparatus having a connector according to one embodiment of the present invention The disassembled perspective view which shows the principal part structure of the camera apparatus which has a connector of one embodiment concerning the present invention A partial cross-sectional view of a camera device showing an essential configuration of a connector according to an embodiment of the present invention The disassembled perspective view which shows the principal part structure of the connector of one embodiment concerning the present invention The figure which shows the contact positional relationship of the circuit terminal part and connector terminal in the connector of one embodiment which concerns on this invention. Sectional drawing which shows the state which displaced the circuit board in the camera apparatus provided with the connector of one embodiment concerning the present invention Sectional drawing which shows the principal part structure of the state which made the circuit board displaced. Sectional drawing which shows the principal part structure of the state which made the circuit board displaced. Diagram for explaining the characteristic impedance of contact pins The schematic diagram which shows the principal part structure of the modification of the connector of one embodiment which concerns on this invention

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a cross-sectional view of a camera apparatus having a connector according to an embodiment of the present invention, and FIG. 2 shows an essential configuration of a camera apparatus having a connector according to an embodiment of the present invention. It is a disassembled perspective view. In the present embodiment, the connector 100 will be described as a part of the camera device 10. Further, in the present embodiment, the direction regarding the camera device 10 having the connector 100 will be described using the orthogonal coordinate system (X, Y, Z). In the camera device 10, the side where the optical system such as a lens (here, the lens portion) is disposed with respect to the connector 100 is the front side, and the side where the cable is connected to the connector 100 is the rear side. The direction along the optical axis L direction of the lens portion 31) is taken as the Z direction (also referred to as the thickness direction of the circuit board 11), and the direction orthogonal to the optical axis L is taken as the X direction and the Y direction.

  The camera device 10 is used, for example, as an on-vehicle camera device such as a front monitor, a back monitor, a side monitor, etc., which captures an outside scene of a vehicle by being provided in parts constituting the front, rear, left and right sides of the vehicle. The vehicle is preferably a moving device such as a car or a train. For example, in the case of a car, the camera device 10 is provided on a front bumper, a rear bumper, a front grill or the like. The camera device 10 is connected to an external electric device such as a power source or a display device in a vehicle compartment via a mating connector 50 (see FIG. 3) connected to the end of the cable. Here, the cable is described as a coaxial cable, and outputs a digital signal captured from the camera device 10. The camera device may be configured to be able to connect a cable for inputting and outputting an analog signal.

  The camera device 10 has a camera case 15 having a connector 100, a circuit board 11 on which the imaging device 12 is mounted, a lens unit 31, and a holder unit 35 for holding the lens unit 31.

The camera case 15 is composed of a front case 13 and a rear case 14. Here, the front case 13 and the rear case 14 are made of an insulating resin or the like. Here, the camera case is in the form of a hollow thin rectangular parallelepiped in a square in front view.
The front case 13 has a box shape with an opening on the rear surface side, and a lens hole is formed in the center of the front surface. The lens hole is formed to communicate the inside of the front case 13 with the front, and the front portion 31 a of the lens unit 31 is internally fitted to the lens hole via the gasket (O ring) 33. As a result, the front case 13 is airtightly closed by the lens unit 31.
In the front case 13, the front portion 31 a of the lens unit 31 facing the opening on the front side introduces external light onto the light receiving surface of the imaging element 12 in the camera case 15.

The holder portion 35 has a tubular shape and is accommodated in the front case 13. The holder portion 35 includes a holder cylindrical portion 351 surrounding the outer periphery of the lens portion (optical system), a holder flange 352 integrally joined to the rear end side of the holder cylindrical portion, and projecting in the radial direction from the rear end side And 353.
The holder cylindrical portion 351 supports the lens portion 31 and holds the lens portion 31 on the front case 13 via the holder flange 352. The optical axis L of the lens unit 31 is arranged to coincide with the axis of the front case 13.
The holder flange 352 is fixed to the front case 13 at its outer peripheral surface, and the rear surface portion 31 b of the lens portion 31 is disposed in the through hole inside so as to face the rear.

The legs 353 are provided to project rearward from the rear surface of the holder flange 352. Here, the outer shape of the holder flange 352 is provided at four corners of the rear surface of the holder flange 352 because the cross-sectional shape orthogonal to the optical axis direction is rectangular (specifically, square).
The rear end surface of the leg portion 353 is a surface orthogonal to the optical axis, and one surface (front surface) of the circuit board 11 abuts on the rear end surface, whereby the circuit substrate 11 is disposed orthogonal to the optical axis It is done.
Thus, the holder 35 has a predetermined distance (the length in the front-rear direction of the leg 353) in the optical axis direction with respect to the lens 31 that exposes the imaging element 12 of the circuit board 11 on the rear surface of the holder flange 352 ) I'm leaving it open. The leg 353 is fixed to the circuit board 11 by, for example, an adhesive or a resin.

  The rear case 14 is airtightly closed with a sealing agent in the vicinity of the mating connector 50 of the rear case 14.

  The circuit board 11 is accommodated in the front case 13 and the rear case 14. The circuit board 11 is disposed to face the lens portion 31 in the optical axis direction of the lens portion (optical system) 31. An imaging device 12 such as a CCD device is mounted on the circuit board 11 so as to face the lens unit 31 on one side (front side). Here, the circuit board 11 is formed in a square shape in a plan view, and the imaging device 12 is mounted on the central portion of the circuit board 11 and is located at a position overlapping the optical axis of the lens unit 31. It is preferable that the optical axis of the imaging element 12 be located at or near the center of the circuit board 11 in plan view. On the circuit board 11, a power supply circuit, a signal processing circuit, and the like related to the imaging device 12 are formed.

In addition, the circuit board 11 is disposed apart from the inner circumferential surface of the camera case 15. In order to adjust the positional relationship between the optical axis L of the optical system (lens unit 31) and the optical axis L1 of the imaging device 12, the circuit board 11 is opposed to the camera case 15 in the X, Y, and Z directions. It is supported so as to be relatively displaceable. Here, at the time of assembly, the circuit board 11 is supported by being pressed against the holder portion 35 in the Z direction by the biasing force of the receptacle pin 16 described later. Thus, the circuit board 11 can move two-dimensionally along a plane perpendicular to the optical axis L in the camera case 15, and the Z direction (the thickness of the circuit board 11) along the optical axis L direction or the optical axis L direction. The position can be adjusted by moving it to the same direction.
A rear surface portion 141 constituting a rear surface of the rear case 14 is disposed to face the other surface (rear surface) of the circuit board 11.

  The rear case 14 has a peripheral wall projecting to the front side from the peripheral edge of the rear face 141, and has a box shape opening at the front end, and the opening on the front side corresponds to the rear face of the front case 13. Close the opening (opening). For example, the open end faces of the rear case 14 and the front case 13 are in contact with each other via a sealing material (not shown), and are joined via an adhesive or a screw. Thus, the front case 13 and the rear case 14 constitute a camera case integrated airtightly.

FIG. 3 is a partial cross-sectional view of a camera device showing an essential configuration of a connector according to an embodiment of the present invention. Moreover, FIG. 4 is an exploded perspective view which shows the principal part structure of the connector of one Embodiment concerning this invention.
The camera device 10 shown in FIGS. 3 and 4 has the connector 100 including the rear surface portion 141 of the rear case 14. A mating connector 50 connected to an end of a cable (here, coaxial cable) not shown is fitted via the connector 100.
The connector 100 has a rear surface (surface connector housing) 141 which also functions as a part of the rear case 14 of the camera case, the receptacle pin 16, the contact pin 21, the shell 22 and the housing 23.
The receptacle pin (circuit terminal portion) 16 is attached to the other surface (rear side surface) side of the circuit board 11 via a receptacle housing (hereinafter referred to as a “receiver housing”) 17. Here, the receptacle pin 16 has a plurality of (for example, three) terminals. The circuit board 11 can receive supply of power from the outside through the contact pin 21 in contact with the receptacle pin (circuit terminal portion) 16 or can transmit and receive electrical signals with the outside. Details of the receptacle pin 16 will be described later.

  The receptacle housing 17 is disposed at a central portion on the rear surface side of the circuit board 11 and supports the attached receptacle pins 16 respectively.

  The receptacle housing 17 is cylindrically formed of an insulating material that insulates each of the receptacle pins 16, and one end of the receptacle pin 16 is connected to the corresponding circuit of the circuit board 11. Here, the receiver housing 17 is formed in a rectangular tube shape, and the shape of the opening 171 is formed in a square shape. The receptacle pin 16 corresponds to the configuration of the coaxial cable, and mainly includes the receptacle contact pin 16 a as a signal terminal for outputting an imaging signal output by the imaging element 12, the ground of the circuit board 11, and the contact piece of the shell 22. And a receiver ground pin 16b connected to 22a1.

  FIG. 5 is a view showing the contact position relationship between the circuit terminal portion (receiver contact pin) 16 and the connector terminal (contact pin 21 and shell 22) in the connector according to one embodiment of the present invention, and the contact portion thereof With the rear surface portion 141 removed, as viewed from the rear.

  As shown in FIGS. 3 to 5, the receiver housing 17 has a rectangular cylindrical shape, and the outer peripheral surface and the rear end surface (upper surface in FIG. 4) are covered with a shield 18 having a rectangular frame shape. The receiver housing 17 is fixed to the circuit board 11 by mounting the leg portion 18a at the lower end of the shield 18 to the circuit board 11 (here, bonding with solder).

  The receptacle pins 16 (the receptacle contact pins 16a and the receptacle ground pins 16b) are each elastically deformed as shown in FIG. 4 and FIG. The tip portions 162 and 168 contact the contact pin 21 and one end 22a of the shell 22 (especially the contact piece 22a1) while biasing in the Z direction due to the biasing force of the contact. The receptacle contact pin 16a and receptacle ground pin 16b of the receptacle pin 16 will be described with the same reference numerals assigned to the same components. The receptacle pin 16 is fixed to the contact pin 21 and the one end 22a of the shell 22 (in particular, the contact piece 22a1) fixed on the rear surface portion 141 side (that is, the fitting portion 143 side). The circuit board 11 is held by pressing the circuit board 11 against the holder portion 35.

  Here, the receptacle pin 16 is formed by processing a long and thin plate-like conductive material (such as a copper plate) to form the base end portion 161 and the tip end portions 162 and 168 at both ends. The receptacle pin 16 is provided between the proximal end portion 161 and the distal end portions 162 and 168, from the proximal end portion 161 side to the distal end portion 162 side, the fixing piece 163, the deformable bending portion 164, and the elastically deformable arm The parts 166 and 167 are formed in succession in order. In the receptacle pin 16, the receptacle contact pin 16a and the receptacle ground pin 16b have different shapes of the arm portions 166 and 167 and the tip portions 162 and 168.

  The fixing piece 163 is formed to rise with respect to the circuit board 11 from the base end portion 161 in the Z direction toward the rear (in the rear, here, the connector side). The fixing piece 163 is fixed in one wall portion of the peripheral wall portion of the frame-like receptacle housing 17. A bent portion 164 extending toward the inner surface of the one wall along the rear end surface of the one wall is continuous with the rear end of the fixing piece 163.

  In the bending portion 164, arm portions 166 and 167 functioning as a plate spring together with the bending portion 164 extend to the lower end side (the front of the camera device 10) of one wall portion and are bent, and the upper end side of the opposing wall of one wall portion It is formed to project toward (the rear of the camera device).

  Tip portions 162 and 168 of the inclined pieces of the arm portions 166 and 167 are formed.

  In the receptacle contact pin 16a, an arm portion 166 and a tip end portion 162 which continue from the bending portion 164 are bifurcated.

  The tip end portion 162 of the receptacle contact pin 16a is formed so as to be contactable while being pressed and displaced to the contact pin 21 in the direction along the Z direction at a bending portion bent in the extending direction of the inclined piece of the arm portion 166 There is. At the tip end portion 162 of the receptacle contact pin 16 a, the bent portion of the arm portion 166 with the inclined piece constitutes a contact portion that contacts the contact surface portion 212 which is the end surface of the contact pin 21.

  Further, the tip end portion 168 of the receptacle ground pin 16b is bent in the extending direction of the inclined piece of the arm portion 167, and one end 22a of the shell 22 (in particular, the contact piece 22a1) ) Is formed so as to be contactable while being deformed and pressed in the direction along the Z direction.

  The arrangement position of the tip portion 168 is a position at the same height level as the tip portion 162.

  The tip portions 162 and 168 of the receptacle contact pin 16 a and the receptacle ground pin 16 b configured in this manner are urged toward the rear surface portion 141 by the arm portions (elastically deformable portions) 166 and 167, and in the thickness direction of the circuit board 11. It has a displaceable contact portion.

  Further, the receptacle contact pin 16 a of the receptacle pin 16 is supported by the receptacle housing 17 so that the bending part 164, the arm part 166 and the tip part 162 are positioned substantially at the center of the opening of the receptacle housing 17. .

  Further, the axial center of the contact pin 21 is positioned between the bifurcated branch pieces of the tip end portion 162. Preferably, the axis of the contact pin 21 is arranged to coincide with the optical axis of the optical system.

  Further, the receptacle ground pins 16b, 16b are supported by the receptacle housing 17 so that their tip ends 168, 168 are positioned so as to sandwich the tip ends 162 of the receptacle contact pins 16a at equal intervals.

  The contact pin 21 and the cylindrical shell 22 correspond to a connector terminal, and are penetratingly provided in the rear surface portion 141 of the rear case 14. Specifically, the contact pin 21 and the cylindrical shell 22 cause the rear end (the shaft tip portion 214a and the other end 22b) to protrude to the outside of the rear case 14 and the front end (contact) It is fixed to the rear surface portion 141 of the rear case 14 so as to expose the surface portion 212 and the one end portion 22a) to the inside of the rear case 14.

  Here, the contact pin 21 and the cylindrical shell 22 are disposed in the through hole formed in the central portion of the rear surface portion 141.

  Specifically, the front end (contact surface 212) of the contact pin 21 and the front end (one end 22a) of the cylindrical shell 22 are attached to the circuit board 11 in the camera case. It is disposed in the state of being inserted into the opening 171 of the receptacle housing 17. On the other hand, the rear end of the contact pin 21 (shaft front end 214a) and the rear end of the shell 22 (other end) 22b are the rear surface of the rear surface 141 (rear surface of the camera case) It is arrange | positioned in the state exposed in the fitting part 143 formed concavely by the side.

  The contact pin 21 is a long rod-like body, is made of a conductive material, and has conductivity. The contact pin 21 is, for example, a copper pin or a member obtained by Sn-plating a base material such as soft copper.

  The contact pin 21 is integrally provided on the contact surface 212 contacting the receptacle contact pin 16a in a plane, and the contact surface 212, and is an axis extending so as to pass through the central axis of the contact surface 212 (central axis of the contact pin 21). And a unit 214. Here, the shaft portion 214 is provided to stand vertically to the contact surface portion 212.

  Further, as shown in FIGS. 3 to 5, the outer peripheral surface of the contact pin 21 is preferably positioned at equal intervals from the central axis in a cross section perpendicular to the central axis direction extending in the extending direction. If the outer periphery of the contact pin 21 is located at a position equidistant from the central axis, the receiver contact pin 16a does not contact at any position in the X axis and Y axis from the center of the contact surface 212, It is possible to make the change in impedance that occurs due to the deviation as similar as possible (the same value). Specifically, the contact pin 21 is formed circular in cross section, the contact surface 212 is circular, and the shaft 214 extending perpendicularly from the circular contact surface 212 is formed in a cylindrical shape centered on the contact surface 212. This makes it easy to set the characteristic impedance of the contact pin 21.

  Further, in the present embodiment, the contact surface portion 212 having a circular cross section is formed in a flange shape protruding perpendicularly to the radial direction from the outer periphery of one end of the shaft portion 214 having a circular cross section.

  The contact pin 21 is inserted (here, press-fitted) into the central hole of the cylindrical housing 23.

  The housing 23 is made of an insulating material, and the outer peripheral surface is covered by a shell 22.

  Thereby, the contact pin 21 is internally fitted in the shell 22 through the housing 23, and the shell 22 is disposed to surround the contact pin 21 with respect to the contact pin 21 through the insulating material, and the contact pin It functions as an electromagnetic shield for 21.

The cylindrical shell 22 is formed by processing a conductive metal plate. One end 22a of the cylindrical shell 22 has a flange-like portion that protrudes in the radial direction with respect to the central axis. A contact piece 22a1 protruding in the radial direction is formed on the flange-like portion of the one end 22a. The contact piece 22a1 is formed at a position corresponding to the receptacle ground pin 16b.
As shown in FIG. 3, a frame-like portion 141 a is formed in the central portion of the inner surface of the rear surface portion 141 so as to open continuously to the opening of the fitting portion 143 and project from the inner surface of the rear surface portion 141. ing.

  The shell 22 is press-fit into the frame portion 141a from the inside of the rear surface portion 141, and the flange portion of the one end 22a engages with the front end surface of the frame portion 141a, and the other end 22b is a rear case 14 It is exposed by the fitting part 143 of.

  One end 22a of the shell 22 is disposed in the receiver housing 17, and the rear surface of the flange-like portion of the end 22a is disposed flush with or substantially flush with the opening surface of the receiver housing 17 There is. A clearance S (see FIG. 3) is formed between the outer peripheral edge of the one end 22a of the shell 22 and the opening edge of the receiver housing 17 in four directions.

  As shown in FIG. 3, the fitting portion 143 has an opening passing through the rear surface portion 141, and the shell 22 is fitted in the opening. The fitting portion 143 is formed in a concave shape on the rear surface side, and fits with the convex fitting portion 52 of the mating connector 50 connected to the end of the cable.

  A packing material 60 is attached to the opening edge of the fitting portion 143 so as to surround the opening, and the airtightness of the electrical connection portion is improved at the time of fitting with the mating connector 50.

  The mating connector 50 has a fitted portion 52 protruding from an abutting portion 51 that abuts on the circular rear surface of the rear surface portion 141. The fitted portion 52 has a cylindrical shape, and in the fitted portion 52, a mating contact pin 54 connected to the central conductor of the coaxial cable, and a tubular mating shell 56 surrounding the mating contact pin 54 Is provided.

  The mating contact pin 54 is made of an elongated cylindrical conductive material, and is, for example, a copper pin or a cylindrical member obtained by Sn plating a base material such as soft copper.

  The mating contact pin 54 is connected to the central conductor of the coaxial cable at one end, and the other end is protruded in the fitted portion 52, and the contact pin 21 is inserted and externally fitted to be electrically Connect to

  The mating shell 56 is formed of a conductive metal. The mating shell 56 is connected at one end to the conductor of the cable (here, the outer conductor of the coaxial cable (mesh wire copper wire)).

  The mating shell 56 is disposed at regular intervals around the mating contact pin 54 in the fitted portion 52, and is engaged with the shell 22 and electrically connected. Here, the mating shell 56 is disposed along the inner peripheral surface of the fitted portion 52 and externally fitted with the shell 22.

  By fitting and connecting the camera device 10 configured in this manner to the mating connector 50, the receptacle pin 16 as a circuit terminal, the contact pin 21 as a contact terminal, and the shell 22 are in contact with each other, and electrical Connected to Thus, the camera device 10 is connected to the external device via the cable connected to the mating connector 50.

  Here, the positional relationship between the receptacle contact pin 16a and receptacle ground pin 16b and the contact pin 21 and one end 22a of the shell 22 (in particular, the contact piece 22a1 of the flange-like part) will be described in detail.

  As shown in FIG. 5, the contact pin 21 has an axis that coincides with the optical axis L of the lens system, and thus with the optical axis L1 (see FIG. 1) of the image pickup device 12 mounted at the center of the circuit board 11. It is desirable to be placed in

  Similarly, the contact portion of the tip end portion 162 of the receptacle contact pin 16a is preferably disposed on the optical axis L1 of the image pickup device 12 mounted at the center portion of the circuit board 11, and thus the tip end portion It is preferable that the contact portion 162 be disposed so as to substantially overlap with the optical axis L of the lens system.

  Thus, the contact surface portion 212 of the contact pin 21 has a region wider in the XY axis direction than the contact region of the tip portion 162 of the receiver contact pin 16a so as to contact the receiver contact pin 16a at its center. The movable area of the circuit board 11 in the X and Y directions is displaceable by the clearance 2S in each direction. Here, as shown in FIGS. 3 and 5, the tip portion 162 of the receptacle contact pin 16a is disposed so as to overlap the sectional shape of the shaft portion 214, and the contact portion of the tip portion 162 is positioned at the center of the contact pin 21. Is located in

  Further, as shown in FIG. 5, the one end 22a of the shell 22 is configured to be disposed at the center of the contact piece 22a1 in the XY direction at the position where the tip 168 of the receptacle pin 16b contacts. .

  In the camera device 10 configured as described above, the front case 13 to which the lens portion 31 is attached via the holder portion 35 and the gasket 33, and the rear case 14 having the contact pin 21, the shell 22, and the housing 23 are imaged. The circuit board 11 having the element 12 and the receptacle pin 16 is sandwiched and assembled.

The circuit board 11 is electrically connected to the contact pins 21 and the shell 22 via the contact pins 21 and the receptacle pins 16 for biasing the shell 22 while contacting the contact pins 21 and the shell 22. Further, in the camera case 15 (see FIG. 1) including the front case 13 and the rear case 14, the circuit board 11 has a front side (specifically, the holder portion 35) in the camera case 15 by the biasing force of the receptacle pin 16. Is pressed against the legs 353 of the Further, the circuit board 11 is electrically connected to the contact pin 21 and an external device connected to the shell 22 by the electrical connection between the receptacle pin 16 and the contact pin 21 and the shell 22.
Thus, the connector 100 is in a position state having a floating function for holding the circuit board 11 so as to be movable (floating) in the X, Y, and Z axes directions and electrically connected to the circuit board 11. After that, even if the circuit board 11 is displaced in the XYZ directions in order to align the optical axis L1 of the imaging element 12 with the optical axis L of the lens unit 31, the displacement can be followed to maintain a reliable contact state.

FIG. 6 is a cross-sectional view showing a state in which the circuit board 11 is displaced in the camera device provided with the connector according to the embodiment of the present invention. FIGS. 7 and 8 are cross-sectional views showing the main configuration of the camera apparatus provided with the connector according to the embodiment of the present invention in a state in which the circuit board 11 is displaced.
FIG. 6 shows a state in which the circuit board 11 is displaced in the − direction (the floating direction of −) in the Z direction. Specifically, the circuit board 11 is displaced to the rear surface portion 141 side (the mating connector side) than the position in the optical axis direction (here, the Z direction) shown in FIG. N = 1/2 M displacement). As described above, even if the circuit board 11 is displaced in the Z-axis direction (direction toward the contact pin 21), the receptacle contact pin 16a of the circuit board 11 is the contact surface portion of the contact pin 21 at the contact portion of the tip portion 162. By sliding along 212 and by elastic deformation of the arm portion 166, the contact surface portion 212 is reliably in contact.

  FIG. 7 shows a state in which the circuit board 11 is displaced in the + direction (+ floating direction) in the X axis and the Z direction. Thus, even if the circuit board 11 is displaced in the X axis + direction (right direction in the figure) and the Z axis + direction (direction to the contact pin 21 side), the receptacle contact pin 16 a of the circuit board 11 has a tip The sliding contact surface portion 212 of the contact pin 21 is slid at the contact portion 162 and the elastic deformation of the arm portion 166 ensures that the contact surface portion 212 is in contact.

  Further, FIG. 8 shows a state in which the circuit board 11 is displaced in the X axis + direction (floating direction). Thus, even if the circuit board 11 is displaced in the X axis + direction (right direction in the figure), the receptacle contact pin 16a of the circuit board 11 is surely on the contact surface portion 212 of the contact pin 21 at the contact portion of the tip portion 162. In contact with Thus, after the circuit board 11 is displaced and the positions of the optical axis L of the lens unit 31 and the optical axis L1 of the imaging device 12 are adjusted, the leg 353 of the holder 35 and the circuit board 11 are It may be fixed by an adhesive or resin.

  The outer diameter of the contact pin 21 in the connector 100 of the present embodiment may be any outer diameter, but the characteristic impedance differs depending on the outer diameter.

  The characteristic interface can be calculated by applying to a simple impedance equation.

  FIG. 9 is a diagram for explaining the characteristic impedance of the contact pin, FIG. 9A is a diagram for explaining the simplified impedance equation, and FIGS. 9B and 9C are diagrams showing an example of the shape of the contact pin. .

  The simplified impedance equation using FIG.

An example of the characteristic impedance of the contact pin 21A of the nail shape shown in FIG. 9B such as the contact pin 21 of the present embodiment is the pin diameter (outer diameter of the shaft portion 214) d = It can be calculated by applying 0.5 mm, outer conductor inner diameter D = 2.9 mm, and insulator dielectric constant ε = 3.7. The outer diameter of the contact surface portion is d = 1.3 mm. Then, the characteristic impedance is 54.8 Ω. Further, as shown in FIG. 9C, an example of the characteristic impedance of the contact pin 21B formed by the shaft portion 214A having the same external shape as the outer diameter of the contact surface portion 212 of the contact pin 21A is the pin diameter (outside diameter of the shaft portion 214A). Calculated by applying d = 1.3 mm, outer conductor inner diameter D = 2.9 mm, and insulator dielectric constant ε = 3.7. Then, the characteristic impedance was 25.0 Ω.
In general, since the impedance of the coaxial cable through which the signal is transmitted is about 50 Ω, the transmission loss can be attenuated as much as possible by the shape shown in FIG. 9B.

  In the present embodiment, the coaxial cable is electrically connected to the circuit board 11 supported by the floating mechanism in the camera case via the single contact pin 21. However, as shown in FIG. Thus, the connector may have two or more contact pins 21C.

  FIG. 10 is a schematic view showing the main configuration of a modified example of the connector according to the embodiment of the present invention. In FIG. 10, a plurality of (here, six) contact pins 21C are similar to the attachment structure of the contact pins 21 in the camera device 10 (see FIG. 3) of the embodiment in the rectangular frame-shaped shell 22C. It is attached to the rear surface portion 141 of the rear case 14 by the structure.

  Further, the contact surface portions of the contact pins 21C are in contact in the state of being pressed in the Z direction by the same terminals as the receptacle pins 16 attached to the circuit board supported by the floating mechanism.

  In the camera device 10 of the present embodiment, at one end, the contact pin 21 joined to the mating contact pin 54 of the mating connector 50 is the end face (contact surface 212) of the other end, the receptacle contact pin being a circuit terminal. It electrically connects with 16a in a state where it is pressed directly in the Z direction. For this reason, there is no need to secure a space for containing a harness, FFC, FPC, etc. in the camera case, and the receptacle contact pins 16a (circuit terminal portion) and the contact pins (connector terminals) 21 of the displaceable circuit board 11 can be simplified. Can be suitably connected, and the overall configuration is small and thin.

  As described above, according to the present embodiment, the receptacle pin 16 (specifically, the contact surface portion (end surface) 212 of the rod-like contact pin (connector terminal) 21 connected to the cable is attached to the displaceable circuit board 11 (specifically Specifically, the receptacle contact pin 16a (circuit terminal) is abutted in the thickness direction of the circuit board 11 to elastically deform the receptacle contact pin 16a (circuit terminal). Thereby, the circuit terminal 11 (receptacle pin 16) and the connector terminal (contact pin 21) of the circuit board 11 are displaced while the circuit board 11 is displaced in the thickness direction of the circuit board 11 as well as in the direction orthogonal to the thickness direction of the circuit board 11. Can be stably and preferably electrically connected with a simple configuration, and the overall configuration can be made small and thin, and downsizing and weight reduction can be achieved.

  That is, the cable terminal (in particular, the mating contact pin 54) forming the end of the cable and the receptacle contact pin 16a which is the circuit terminal of the circuit board 11 of the camera device 10 have a simple configuration via only the contact pin 21. It is electrically connected.

  For example, in order to adjust the optical axis L of the optical system (lens unit 31) and the optical axis L1 of the imaging element 12, even if the circuit board 11 on which the imaging element 12 is mounted is displaced relative to the contact pins 21, The receptacle pin 16 on the 11 side can slide in the X and Y directions while being pressed in the Z direction on each of the contact pin 21 and the one end 22a of the shell 22 (in particular, the contact piece 22a1). In the present embodiment, in the camera case 15, the circuit board 11 is elastically deformed along the Z direction (here, may be referred to as the optical axis L direction) of the receptacle pin 16 in contact with the contact pin 21 and the shell 22. , And can be moved in the XY direction (direction orthogonal to the optical axis L), and is positioned by being pressed against the lens portion 31 side (specifically, the holder portion 35) in the direction along the optical axis L of the optical system It has become.

  Thus, the circuit board 11 and the cable can be stably held in a state where they are always electrically connected.

  Further, according to this structure, it is possible to move the floating circuit board 11 in the direction orthogonal to the optical axis such as the X-axis and Y-axis with only one circuit board 11 as well as displacing in the Z direction. While being made, the receptacle pins 16 of the circuit board 11 and the connector terminals on the connector side can be electrically suitably connected. Further, the front end portion (contact portion) 162 of the reception contact pin 16a is disposed at a position coinciding with the optical axis L1 of the imaging element 12 mounted on the circuit board 11, and the front end portion (contact point 162) of the reception contact pin 16a. The tip portion (contact portion) 168 of the receptacle ground pin 16b is disposed around the periphery. In detail, the arm portion 166 of the receptacle contact pin 16a for transmitting a signal in contact with the contact pin 21 is divided into two parts, and the contact piece 22a1 of the shell 22 is disposed at two positions in the diameter direction. And contact with the receptacle ground pin 16b. As a result, the signal terminals (the contact pins 21 and the receiver contact pins 16a) and the ground terminals (the shell 22 and the receiver ground pins 16b) are stably connected. Furthermore, by arranging the receiver contact pin 16a for transmitting a signal to the center and the two receiver ground pins 16b around it, the configuration is also resistant to noise.

  It should be understood that the embodiments disclosed herein are illustrative and non-restrictive in every respect. The scope of the present invention is indicated not by the above description but by the claims, and is intended to include all the modifications within the meaning and scope equivalent to the claims.

  The embodiments of the present invention have been described above. The above description is an illustration of a preferred embodiment of the present invention, and the scope of the present invention is not limited to this. That is, the description of the configuration of the device and the shape of each part is an example, and it is apparent that various modifications and additions to these examples are possible within the scope of the present invention.

  The connector according to the present invention and the camera device provided with the same have the effect that the circuit terminals of the circuit board and the connector terminals can be suitably and stably electrically connected with a simple configuration while displacing the displaceable circuit board. It is useful as an electronic device provided with a circuit board supported by a floating mechanism.

DESCRIPTION OF SYMBOLS 10 Camera apparatus 11 Circuit board 12 Image sensor 14 Rear case (connector housing)
15 Camera Case 16 Receptacle Pin 16a Receiver Contact Pin (Circuit Terminal)
16b receptacle ground pin 17 receptacle housing 18 shield 18a leg 21, 21A, 21B, 21C contact pin (connector terminal)
Reference Signs List 22 shell 22a one end 22a1 contact piece 22b other end 23 housing 35 holder (holding portion)
DESCRIPTION OF SYMBOLS 50 mating connector 51 abutting part 52 fitting part 54 mating contact pin 56 mating shell 60 packing material 100 connector 141 back surface part 141a frame-like part 143 fitting part 161 base end part 162, 168 tip part (contact part)
163 fixed piece 164 bent portion 166, 167 arm portion (elastically deformable portion)
212 Contact surface (end face)
214, 214A shaft 214a shaft tip

Claims (8)

A circuit terminal portion including a terminal connected to the image pickup device, mounted on a circuit board on which the image pickup device is mounted and which is accommodated displaceably in a housing;
A planar connector housing disposed on the surface of the circuit board to which the circuit terminal portion is attached in the thickness direction of the circuit board so as to face one wall portion of the housing;
A conductive rod-shaped body penetrating through the connector housing, the connector terminal contacting the circuit terminal portion at an end face of the circuit board side;
Have
The housing has a box-shaped front case for accommodating a holder for holding an optical system including a lens, and a box-shaped rear case for closing an opening of the front case.
The connector housing is configured as a rear surface portion of the rear case, and the connector terminal is provided on the rear case.
Said circuit terminal portion, have the said circuit displaceable contact portion in the thickness direction of the substrate is the direction in which the urging force by Ri is urged to the connector housing side along the optical axis direction of the optical system of the elastically deformable portion And
The contact portion contacts the end face of the connector terminal while pressing the end face of the connector terminal toward the connector housing in the thickness direction along the optical axis direction, and the circuit board is housed in the housing. The connector terminal is electrically separated from the inner peripheral surface of the body and held in a floating state movable between the holder portion and the connector housing in the thickness direction and the direction orthogonal to the thickness direction. To connect
connector. The end surface of the connector terminal is wider than the contact area with the contact portion, and contacts the contact portion in the thickness direction of the circuit board at a portion including the central portion of the end surface.
The connector according to claim 1. The connector terminal has a circular cross section,
The end face of the connector terminal is circular,
The connector according to claim 1 or 2. The connector terminal has a shaft portion passing through the connector housing.
A contact surface portion which is formed projecting in the radial direction from an end portion of the shaft portion on the circuit board side and which constitutes the end surface of the connector terminal having an outer diameter larger than the outer diameter of the shaft portion;
Have
The connector according to any one of claims 1 to 3. The elastically deformable portion of the circuit terminal portion has a leaf spring-like arm portion protruding toward the end surface from the side of the circuit board at a position corresponding to the end surface of the connector terminal.
The contact portion is formed at the tip of the arm portion.
The connector according to any one of claims 1 to 4. A camera apparatus comprising the connector according to any one of claims 1 to 5,
Said a front case and a box-shaped camera front case for housing the holder portion for holding the optical system including the lens,
A box-like camera rear case which is the rear case and closes an opening of the camera front case and which accommodates the circuit board;
Have
The connector housing of the connector is configured as a rear surface portion of the camera rear case,
The circuit board is disposed so as to be orthogonal to the optical axis of the optical system and in contact with the holder portion on the outer peripheral side of the optical axis.
The connector terminal is disposed along an optical axis of the optical system.
Contact portions of said circuit terminal portion, in the thickness direction intends along the optical axis of the optical system, presses the end face of the connector terminals on the connector housing side, the circuit board is a direction along the optical axis the pressed against the holder portion, between said connector housing and said holder portion, is held in the floating state,
Camera device. The contact portion of the circuit terminal portion is a contact portion of the receptacle contact pin disposed so as to be positioned on the optical axis of the optical system ,
The contact portion of the receptacle contact pin is disposed at a position coincident with the optical axis of the imaging device mounted on the circuit board.
The contact portion of the receptacle ground pin is disposed around the contact portion of the receptacle contact pin ,
The camera apparatus according to claim 6. And
A circuit board on which an imaging element is mounted and which is accommodated displaceably in the housing;
A circuit terminal unit including a terminal attached to the circuit board and connected to the imaging device;
A planar connector housing disposed on the surface of the circuit board to which the circuit terminal portion is attached in the thickness direction of the circuit board so as to face one wall portion of the housing;
A conductive rod-shaped body penetrating through the connector housing, the connector terminal contacting the circuit terminal portion at an end face of the circuit board side;
Have
The housing has a box-shaped front case for accommodating a holder for holding an optical system including a lens, and a box-shaped rear case for closing an opening of the front case.
The connector housing is a rear surface portion of the rear case, and the connector terminal is provided on the rear case.
The circuit terminal portion has a contact portion which is biased toward the connector housing by the biasing force of the elastically deformable portion and displaceable in the thickness direction of the circuit board which is a direction along the optical axis direction of the optical system.
The contact portion contacts the end surface while pressing the end surface of the connector terminal toward the connector housing in the thickness direction.
The circuit board is separated from the inner circumferential surface of the housing by the biasing force in the housing, and is orthogonal to the thickness direction and the thickness direction between the holder portion and the connector housing Electrically connected to the connector terminal while being held in a floating state movable in the
Electronic equipment .

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