JP2017092020A - Module connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a module connector capable of downsizing, mountability enhancement and reduction of cost by enhancing a method for connecting a terminal that is mounted on an upper case of a module, and a module substrate that is mounted on a lower case of the module.SOLUTION: The module connector comprises a plurality of case-side contact terminals 1012 and a plurality of contact touch pads 1023. The case-side contact terminal includes a connector contact part 1012a which is electrically connected to a plurality of cable-side contact terminals 112 electrically connected to a multicore cable 10 in connector fitting; a spring part 1012b having spring properties; and a substrate connection part 1012c which is fixed in electrical contact with a module substrate 1022. The case-side contact terminal is formed integrally in such a manner that the spring part 1012b is disposed between the connector contact part 1012a and the substrate connection part 1012c. The contact touch pad is provided on the module substrate 1022 that is fixed in a module-side case 1021.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a module connector, and more particularly to a module connector that requires a waterproof and dustproof function for use in a vehicle camera module or the like.

  In recent years, the use of in-vehicle cameras has expanded, and advanced driving support systems (ADAS: Advanced Driver) such as automatic braking and lane keeping for monitoring the periphery of a vehicle such as a back monitor and assisting the driver's field of view. An automobile equipped with an in-vehicle camera for image recognition employed in Assistance System or the like, or for night vision using an infrared camera such as a night vision has become widespread.

  Such an in-vehicle camera is based on an imaging optical system having an optical element such as an imaging lens, an imaging element for acquiring a subject image formed thereby, and an electric signal output from the imaging element An electronic circuit unit that generates digital image data corresponding to the subject image is accommodated in the housing, and a connection cable for transmitting the generated digital image data from the electronic circuit unit inside the housing to the outside is provided. The configuration of the in-vehicle camera module is mainly adopted.

  In such an in-vehicle camera module, in order to prevent water and dust from entering the inside of the module housing and the electronic components and the like housed in the housing from shutting down, a waterproof or dustproof function is required. The In addition, with the diversification of uses of in-vehicle cameras, in-vehicle camera modules may be installed at a plurality of locations, thereby requiring a reduction in size, improvement in attachment properties, and the like. A similar function is also required for a connector for a module that connects a module substrate and a connection cable inside a module such as an in-vehicle camera module.

  In recent years, the performance of in-vehicle cameras has been improved, and high-speed signal transmission cables have been used. Examples of the high-speed signal transmission cable include a digital signal transmission cable. In accordance with this, the module connector is required to be capable of high-speed signal transmission.

Japanese Patent No. 5573828

  In a conventional module connector as shown in Patent Document 1, a cable connector having a terminal crimped to a cable conductor is directly fitted into a board-side connector mounted on a module board mounted on a lower case of a camera module. For fixing the cable connector, after the connector is fitted, the cable connector is fixed to the upper case by screwing or the like.

  However, in such a method, the cable connector needs to absorb misalignment of the connector fitting, and it is necessary to achieve a waterproof and dustproof function, which requires a complicated configuration. There was a problem that costing was difficult. Furthermore, it is necessary to fix the cable connector to the camera module by screwing or the like, which increases the man-hours and has a problem in the mountability.

  In order to improve the above-described mounting property, there is a method in which a terminal is provided on the upper case of the camera module, and the terminal and the cable connector are fitted by a lock mechanism or the like. In this method, in order to electrically connect a terminal provided on the upper case of the camera module and a module board mounted on the lower case of the camera module, a board-side connector is mounted on the module board, It is necessary to electrically connect the terminal and the board connector of the lower case by fitting.

  However, in such a method, a structure for absorbing the fitting displacement between the upper case and the lower case is required for the board-side connector, so that a complicated configuration is required, and miniaturization becomes difficult. There was a problem that the cost increased. There is also a demand for a module connector that enables high-speed signal transmission.

  Therefore, the present invention improves the connection method between the terminal attached to the upper case of the module and the module substrate mounted on the lower case of the module, and enables downsizing, improvement in attachment, and cost reduction. An object of the present invention is to provide a module connector.

  Furthermore, another object of the present invention is to provide a module connector that enables high-speed signal transmission.

  In order to solve the above-described problems, a module connector according to the present invention electrically connects a cable having a plurality of signal lines and a module substrate inside a module constituted by the module side case and the cable side case. A plurality of case-side contact terminals fixed to the cable-side case, and are electrically contacted with the plurality of cable-side contact terminals electrically connected to the cable when the connector is fitted. A connector contact portion, a spring portion having a spring property in the fitting direction of the connector, and a board connection portion that is electrically contacted and fixed to the module substrate, and the connector contact portion and the board connection portion The plurality of case side contact terminals formed integrally so that the spring portion is disposed between the module side case and the module side case. A plurality of contact contacts, which are provided on the module substrate fixed to the base, and wherein the substrate connection portions of the plurality of case-side contact terminals are electrically contacted and fixed by contact pressure due to the spring property of the spring portions. And a pad.

  The spring shapes of the spring portions of the plurality of case-side contact terminals facing each other are formed so as to face each other, and the plurality of board connection portions of the plurality of case-side contact terminals are aggregated together, thereby The plurality of contact contact pads that are in contact with the substrate connecting portion may be arranged in a concentrated manner.

  The spring portions of the plurality of case side contact terminals have the spring property in a direction perpendicular to the connector fitting direction, and the contact contact pads depend on the spring properties of the plurality of case side contact terminals. It is good also as what is formed in the magnitude | size which is movable and can absorb the fitting shift | offset | difference of the said cable side case and the said module side case.

  The spring portions and the board connection portions of the plurality of case side contact terminals are provided offset from the connector contact portions, and the board connection portions of the plurality of case side contact terminals facing each other are provided with the spring property. It is good also as what is comprised so that it may not mutually contact by the movement by.

  A press-fit fixing portion for press-fitting and fixing the cable-side case between the connector contact portions and the spring portion of the plurality of case-side contact terminals may be provided.

  The cable side case may be provided with ribs for restricting the movement of the spring portions of the plurality of case side contact terminals.

  The plurality of cable-side contact terminals are each fixed to the cable-side connector by being insulated, and are provided on the cable-side connector with a cantilever-shaped lock portion provided on the cable-side case and having spring properties. It is good also as what is comprised so that a connector may be fitted when the formed opening engaging part engages.

  In order to solve the above-described problems, a module connector according to the present invention electrically connects a cable having a plurality of signal lines and a module substrate inside a module constituted by the module side case and the cable side case. A plurality of case-side contact terminals fixed to the cable-side case, and are electrically contacted with the plurality of cable-side contact terminals electrically connected to the cable when the connector is fitted. A connector contact portion, a spring portion having a spring property in the fitting direction of the connector, and a board connection portion that is electrically contacted and fixed to the module substrate, and the connector contact portion and the board connection portion The spring part is integrally formed so as to be disposed between the board connecting part and the board connecting part. Provided on the module substrate fixed to the module side case, the plurality of case side contact terminals further having a loop contact portion that is contacted by forming a loop shape between the spring portion of the tact terminal and the connector contact portion. The board connection portions of the plurality of case-side contact terminals include a plurality of contact contact pads that are electrically contacted and fixed by contact pressure due to the spring property of the spring portions.

  The cable having the plurality of signal lines may be a signal transmission cable capable of high-speed signal transmission.

  According to the present invention, the connection method between the case-side contact terminal attached to the cable-side case of the module such as the in-vehicle camera module and the module substrate mounted on the module-side case is improved. And the connector for modules which enables cost reduction can be provided.

  According to the present invention, it is also possible to provide a module connector that enables high-speed signal transmission.

It is a perspective view which shows the vehicle-mounted camera module which uses the connector for modules of the 1st Embodiment of this invention. It is a perspective view which decomposes | disassembles and shows the vehicle-mounted camera module shown in FIG. It is a perspective view which shows the cable side connector connected to the vehicle-mounted camera module shown in FIG. 4A is a perspective view showing an appearance of the cable side case assembly of the in-vehicle camera module shown in FIG. 2, and FIG. 4B is a perspective view showing the cable side case assembly from the cable side. FIG. 4C is a perspective view showing the cable side case assembly from the module side. It is a perspective view which shows the case side contact terminal fixed to the cable side case shown to Fig.4 (a) thru | or FIG.4 (c). It is a perspective view which shows the module side case assembly of the vehicle-mounted camera module shown in FIG. FIG. 6 is a perspective view showing a state in which the case-side contact terminal shown in FIG. 5 is fixed in contact with a contact contact pad provided on the module substrate. It is sectional drawing along the VIII-VIII line of the vehicle-mounted camera module of the fitting state shown in FIG. It is a perspective view which shows the vehicle-mounted camera module which uses the module connector of the 2nd Embodiment of this invention. It is a perspective view which decomposes | disassembles and shows the vehicle-mounted camera module shown in FIG. It is sectional drawing along the XI-XI line of the decomposition | disassembly vehicle-mounted camera module shown in FIG. 12A is a front view showing the case-side contact terminal fixed to the cable-side case shown in FIG. 10 before displacement, and FIG. 12B is a front view showing the case-side contact terminal after displacement. FIG. 12 (c) is a perspective view showing the case side contact terminal before displacement, and FIG. 12 (d) is a perspective view showing the case side contact terminal after displacement. FIG. 13A is a diagram showing a configuration for measuring the impedance of the case side contact terminal shown in FIG. 5, and FIG. 13B is a diagram showing the measurement result of FIG. (C) is a figure which shows the structure which measures the impedance of the case side contact terminal shown to FIG.12 (a) thru | or FIG.12 (d), FIG.13 (d) shows the measurement result of FIG.13 (c). FIG.

  Embodiments of the present invention will be described below with reference to the drawings.

  In addition, the concept of the up-down direction in the following description corresponds to the up-down direction in the attached drawings, and indicates a relative positional relationship between the members, and does not indicate an absolute positional relationship. In the following description, for convenience, the insertion direction of the connector is indicated as “front end”, the reverse direction of the connector insertion direction is indicated as “rear end”, and the left-right direction is a direction orthogonal to the insertion direction of the connector. Indicates “left and right”, but does not indicate an absolute positional relationship.

  First, the module connector according to the first embodiment of the present invention will be described.

  FIG. 1 is a perspective view showing an in-vehicle camera module 1000 using the module connector according to the first embodiment of the present invention, and FIG. 2 is an exploded perspective view showing the in-vehicle camera module 1000 shown in FIG. is there.

  1 and 2, the in-vehicle camera module 1000 includes a cable side case assembly 1010 having a structure connected to the multicore cable 10 and a module side case assembly 1020 that houses a camera module (not shown) inside. The cable side case assembly 1010 and the module side case assembly 1020 are fixed by, for example, screwing. The in-vehicle camera module 1000 and the cable-side connector 110 connected to the multi-core cable 10 are associated with a lock portion 1011a provided in a cable-side case 1011 described later and an opening engaging portion 111a provided in the cable-side connector housing 111. By mating, they are fitted. In this embodiment, the method for fitting the in-vehicle camera module 1000 and the cable side connector 110 is to engage the lock portion 1011a and the opening engaging portion 111a. However, the present invention is not limited to this method. It may be fitted by other methods.

  FIG. 3 is a perspective view showing the cable-side connector 110 connected to the in-vehicle camera module 1000 shown in FIG.

  In FIG. 3, the cable-side connector 110 includes a cable-side connector housing 111, a plurality of cable-side contact terminals 112, and an O-ring 113 for performing a waterproof and dustproof function when the connector is fitted.

  The cable side connector housing 111 is formed through various processes such as fixing the cable side contact terminal 112 to the insulator, covering the case and overmolding, and finally injecting a sealing material. Omitted. The cable-side connector housing 111 is made of an insulating material such as resin as described above, and is an opening provided on one side of the rear end side, which is engaged with a lock portion 1011a of the cable-side case 1011 described later. An engaging portion 111a, a housing portion 111b in which a cylindrical projection 1011b of the cable side case 1011 to be described later is housed, and a protruding portion provided inside the housing portion 111b, and insulates the plurality of cable side contact terminals 112. The terminal holding part 111c to hold and a plurality of terminal receiving holes 111d provided in the terminal holding part 111c for receiving the plurality of cable side contact terminals 112 are mainly provided.

  The plurality of cable-side contact terminals 112 are connected to each of the conducting wire portions 12 from which the coating of the plurality of signal wires 11 included in the multicore cable 10 is peeled off by crimping or the like. In this embodiment, the multi-core cable 10 having the six signal lines 11 is used as the cable. However, the present invention is not limited to this, and a multi-core cable having another number or a coaxial cable may be used. Moreover, you may use the shielded multi-core cable which has a shield of the braided shape etc. around the several covered signal wire | line 11. FIG. The cable-side contact terminal 112 is in electrical contact with a connector contact portion 1012a of a case-side contact terminal 1012 described later when the in-vehicle camera module 1000 and the cable-side connector 110 are fitted.

  The O-ring 113 is formed of, for example, a rubber material, and is disposed near the middle stage of the outer periphery of the terminal holding portion 111c of the cable-side connector housing 111. The waterproof and dustproof electrical contact between the cable side contact terminal 112 and the case side contact terminal 1012 described later is ensured.

  4A is a perspective view showing an appearance of the cable side case assembly 1010 of the in-vehicle camera module 1000 shown in FIG. 2, and FIG. 4B is a perspective view showing the cable side case assembly 1010 from the cable side. FIG. 4C is a perspective view showing the cable side case assembly 1010 from the module side.

  4A to 4C, the cable side case assembly 1010 includes a cable side case 1011, a plurality of case side contact terminals 1012, and a sealing material 1013.

  The cable side case 1011 is formed of an insulating material such as resin in order to hold the plurality of case side contact terminals 1012. The cable-side case 1011 is engaged with the opening engaging portion 111a of the cable-side connector housing 111 when the connector is fitted, and extends toward the cable-side connector 110 and the lock portion 1011a having a spring shape with a cantilever shape. A plurality of ribs 1011c provided between the cylindrical protrusion 1011b and the plurality of case-side contact terminals 1012 fixed inside the cable-side case 1011 and for restricting the movement of the plurality of case-side contact terminals 1012. Prepare. The lock portion 1011a is formed such that when the connector is released, the operator can press the engagement protrusion provided at the tip thereof to release the engagement. The shape of the cylindrical protrusion 1011b is not limited to the substantially square cylindrical shape shown in FIGS. 4A and 4B, and the number of signal lines 11 of the multicore cable 10 and the shape of the cable-side connector 110 are not limited. It can be changed to match. The shape of the plurality of ribs 1011c is a plurality of rectangular parallelepiped shapes provided between the plurality of case-side contact terminals 1012 to be fixed here, as shown in FIG. Any shape that can limit the movement of the plurality of case-side contact terminals 1012 may be used.

  As shown in FIG. 5 to be described later, the plurality of case-side contact terminals 1012 are substantially rod-shaped members formed of a material such as a conductive metal such as a gold-plated copper. The plurality of case-side contact terminals 1012 are inserted from the inside of the cable-side case 1011 shown in FIG. 4C and fixed by press-fitting or the like.

  The sealing material 1013 is injected from the rear end side of the cable side case 1011 to the inner wall of the cylindrical protrusion 1011b after the case side contact terminal 1012 is inserted from the inside of the cable side case 1011 and fixed by press-fitting or the like. The side contact terminal 1012 is insulated and fixed. As the material of the sealing material 1013, an adhesive, a resin by injection molding, or the like is used.

  FIG. 5 is a perspective view showing the case side contact terminal 1012 fixed to the cable side case 1011 shown in FIGS. 4 (a) to 4 (c).

  In FIG. 5, the case-side contact terminal 1012 extends toward the cable-side connector 110 and is electrically contacted with a plurality of cable-side contact terminals 112 electrically connected to the multicore cable 10 when the connector is fitted. A connector contact portion 1012a, a press-fit fixing portion 1012d that is provided adjacent to the connector contact portion 1012a, is formed in a two-step trapezoidal shape, and is press-fitted and fixed to the cable side case 1011; The spring part 1012b is formed in a U shape and has a spring property in a direction perpendicular to the connector fitting direction and the connector fitting direction, and is bent at the tip of the spring part 1012b. A plurality of contact contact pads 1023 formed and provided on a module substrate 1022 to be described later are electrically connected Touch mainly composed of a board connecting portion 1012c which is fixed. In addition, the shape of the spring part 1012b, the board | substrate connection part 1012c, and the press-fit fixing | fixed part 1012d is not limited to this shape, What is necessary is just the shape which fulfills the function of each part. Further, in the case of using another fixing method instead of fixing by press-fitting, the press-fitting fixing portion 1012d may not be provided.

  In this embodiment, the module connector of the present invention is formed integrally with the cable side case assembly 1010. However, the case side contact terminals 1012 of the plurality of case side contact terminals 1012 and the cable side case 1011 are used. It is also possible to form the part for fixing the cable with an insulating material such as resin and attach it as a separate part to a conductive cable side case 1011 made of metal such as aluminum die cast.

  FIG. 6 is a perspective view showing the module side case assembly 1020 of the in-vehicle camera module 1000 shown in FIG.

  In FIG. 6, the module side case assembly 1020 includes a module side case 1021, a module substrate 1022 fixed to the module side case 1021, and a contact contact pad 1023 provided on the cable side of the module substrate 1022.

  The module-side case 1021 is formed of a molded product such as a metal such as aluminum die cast or a resin, for example, and houses a camera module (not shown) inside. The above-mentioned camera module is connected to the front end side of the module substrate 1022, and a contact contact pad 1023 is formed on the rear end side thereof by screen printing or the like in the same manner as other wiring patterns.

  FIG. 7 is a perspective view showing a state where the case-side contact terminal 1012 shown in FIG. 5 is fixed in contact with the contact contact pad 1023 provided on the module substrate 1022. FIG. 7 shows a state where the cable side case 1011 is removed so that the shape of the case side contact terminal 1012 can be seen.

  As shown in FIG. 7, the board connection portion 1012 c of the case side contact terminal 1012 is fixed in contact with a contact contact pad 1023 provided on the module board 1022. At this time, even if there is a fitting displacement in the connector fitting direction between the cable side case 1011 and the module side case 1021 due to the contact pressure due to the spring property in the connector fitting direction of the spring portion 1012b of the case side contact terminal 1012. By absorbing this, the substrate connecting portion 1012c and the contact contact pad 1023 are securely contacted and fixed. Further, since the spring portions 1012b of the case-side contact terminals 1012 facing each other are formed to bulge outward so as to face each other, the board connecting portions 1012c are arranged in a concentrated manner. For this reason, a plurality of contact contact pads 1023 with which the board connecting portion 1012c is brought into contact are also arranged together, and the connector connecting portion on the module board 1022 can be saved in space.

  Further, as shown in FIG. 7, the board connecting portion 1012c is moved to the contact contact pad 1023 while moving in the direction close to the other case side contact terminal 1012 facing due to the structure of the substantially U-shaped spring portion 1012b. In order to contact, the spring part 1012b of the case side contact terminal 1012 has a spring property also in the vertical surface direction of the connector fitting direction. For this reason, if the contact contact pad 1023 is formed to a certain size, the connector connection direction between the cable-side case 1011 and the module-side case 1021 in the connector fitting direction in the vertical plane direction, or the board connection portion due to the spring property The movement of 1012c can be absorbed. Further, as shown in FIG. 5, since the spring portion 1012b is provided offset with respect to the press-fit fixing portion 1012d provided adjacent to the connector contact portion 1012a, the board connecting portion 1012c is movable due to the spring property described above. Even so, since the opposing case-side contact terminals 1012 are offset and close to each other, contact between the opposing case-side contact terminals 1012 can be prevented. In accordance with this, the plurality of contact contact pads 1023 are arranged in a zigzag shape as shown in FIG.

  FIG. 8 is a cross-sectional view taken along the line VIII-VIII of the in-vehicle camera module 1000 in the fitted state shown in FIG.

  In FIG. 8, an in-vehicle camera module 1000 including a cable side case assembly 1010 and a module side case assembly 1020 includes a cable side connector 110 connected to the multi-core cable 10 and a lock portion 1011a provided in the cable side case 1011. And the opening engaging portion 111a provided in the cable side connector housing 111 is engaged with each other. The connector contact portion 1012a of the case side contact terminal 1012 is electrically contacted with the cable side contact terminal 112 when the connector is fitted, and the board connecting portion 1012c is brought into contact with a contact contact pad 1023 provided on the module board 1022. Fixed. As shown in FIG. 8, since the rib 1011c provided in the cable side case 1011 is formed on the side surface of the spring portion 1012b of the case side contact terminal 1012, the vertical surface direction of the connector fitting direction of the case side contact terminal 1012 Can be limited.

  As described above, according to the module connector of the first embodiment of the present invention, the case side contact terminal attached to the cable side case of the module such as the in-vehicle camera module and the module side case of the module are mounted. The connection method of the module substrate can be improved, and downsizing, mounting property improvement, and cost reduction can be realized.

  Next, a module connector according to a second embodiment of the present invention will be described.

  FIG. 9 is a perspective view showing an in-vehicle camera module 2000 using the module connector according to the second embodiment of the present invention.

  In FIG. 9, the module connector of the second embodiment has a high-speed transmission for digital signal transmission or the like, whereas the first module connector is connected to the multi-core cable 10 not compatible with high-speed transmission. It is different that it is connected to the multi-core cable 20 that can be used. In recent years, the performance of in-vehicle cameras has been improved, and high-speed signal transmission cables such as digital signal transmission cables capable of high-speed signal transmission have been used. Along with this, module connectors that are capable of high-speed signal transmission have been required. The module connector of the second embodiment is a module connector that enables high-speed signal transmission.

  10 is an exploded perspective view of the in-vehicle camera module shown in FIG. 11 is a cross-sectional view taken along the line XI-XI of the disassembled in-vehicle camera module shown in FIG.

  9 to 11, an in-vehicle camera module 2000 includes a cable-side case assembly 2010 having a structure connected to a multicore cable 20 capable of high-speed transmission, as in the in-vehicle camera module 1000 of the first embodiment, And a module side case assembly 2020 for accommodating a camera module (not shown). The cable side case assembly 2010 and the module side case assembly 2020 are fixed by, for example, screwing. The in-vehicle camera module 2000 and the cable side connector 210 connected to the multi-core cable 20 are engaged with a lock portion 2011a provided in the cable side case 2011 and an opening engaging portion 211a provided in the cable side connector housing 211. Is fitted.

  10 and 11, the cable side connector 210 is waterproof when the connector is fitted with the cable side connector housing 211, the plurality of cable side contact terminals 212, and the cable side connector 110 of the first embodiment. And an O-ring 213 for performing a dustproof function.

  The cable-side connector housing 211 is made of an insulating material such as resin and is an opening provided on one side of the rear end side, and is an opening engaging portion 211a that is engaged with a lock portion 2011a of the cable-side case 2011 described later. A housing portion 211b in which a cylindrical projection 2011b of the cable side case 2011 to be described later is housed, and a protrusion provided inside the housing portion 211b, and insulates and holds the plurality of cable side contact terminals 212. The terminal holding part 211c and the terminal holding part 211c are provided mainly with a plurality of terminal receiving holes 211d provided in the terminal holding part 211c for receiving the plurality of cable side contact terminals 212.

  The plurality of cable-side contact terminals 212 are connected to each of the conductive wire portions 22 from which the coatings of the plurality of signal lines 21 included in the multicore cable 20 are peeled off by crimping or the like. In the present embodiment, the multi-core cable 20 having six signal lines 21 capable of high-speed signal transmission is used as the cable. However, the present invention is not limited to this, and other numbers capable of high-speed signal transmission are used. A multi-core cable or a coaxial cable may be used. Further, a shielded multi-core cable having a shield such as a braided shape around the plurality of covered signal lines 21 may be used. The cable-side contact terminal 212 is in electrical contact with a connector contact portion 2012a of a case-side contact terminal 2012 described later when the in-vehicle camera module 2000 and the cable-side connector 210 are fitted.

  The O-ring 213 is formed of, for example, a rubber material, and is disposed near the middle stage of the outer periphery of the terminal holding portion 211c of the cable-side connector housing 211. The waterproof and dustproof electrical contact between the cable side contact terminal 212 and the case side contact terminal 2012 described later is ensured.

  10 and 11, the cable-side case assembly 2010 includes a cable-side case 2011, a plurality of case-side contact terminals 2012, and a sealing material 2013, similarly to the cable-side case assembly 1010 of the first embodiment. Prepare.

  The cable side case 2011 is formed of an insulating material such as resin in order to hold the plurality of case side contact terminals 2012. The cable-side case 2011 is engaged with the opening engaging portion 211a of the cable-side connector housing 211 when the connector is fitted, and extends toward the cable-side connector 210 and the lock portion 2011a having a spring shape with a cantilever shape. A plurality of ribs 2011c provided between the cylindrical protrusion 2011b and a plurality of case-side contact terminals 2012 fixed inside the cable-side case 2011 to restrict the movement of the plurality of case-side contact terminals 2012. Prepare. The lock portion 2011a is formed so that the operator can press the engagement projection provided at the tip of the lock portion 2011a to release the engagement when the connector is released.

  As shown in FIGS. 12A to 12C, which will be described later, the plurality of case-side contact terminals 2012 are substantially rod-shaped formed of a material such as a conductive metal such as copper plated with gold. It is a member. The plurality of case side contact terminals 2012 are inserted from the inside of the cable side case 2011 and fixed by press-fitting or the like.

  After the case side contact terminal 2012 is inserted from the inside of the cable side case 2011 and fixed by press-fitting or the like, the sealing material 2013 is injected from the rear end side of the cable side case 2011 to the inner wall of the cylindrical protrusion 2011b. The side contact terminals 2012 are insulated and fixed. As the material of the sealing material 2013, an adhesive, a resin by injection molding, or the like is used.

  10 and 11, a module side case assembly 2020 includes a module side case 2021, a module substrate 2022 fixed to the module side case 2021, and a module substrate, as with the module side case assembly 1020 of the first embodiment. 2022 is provided with a contact contact pad 2023 provided on the cable side of 2022.

  The module-side case 2021 is formed of a molded product such as a metal such as aluminum die cast or resin, and houses a camera module (not shown) inside. The above-mentioned camera module is connected to the front end side of the module substrate 1022, and a contact contact pad 2023 is formed on the rear end side thereof by screen printing or the like in the same manner as other wiring patterns.

  12A is a front view showing the case-side contact terminal 2012 before displacement of the case-side contact terminal 2012 fixed to the cable-side case shown in FIG. 10, and FIG. 12B shows the case-side contact terminal 2012 after displacement. FIG. 12C is a perspective view showing the case-side contact terminal 2012 before displacement, and FIG. 12D is a perspective view showing the case-side contact terminal 2012 after displacement.

  12A to 12D, the case-side contact terminal 2012 extends toward the cable-side connector 210 as in the case-side contact terminal 1012 of the first embodiment. A connector contact portion 2012a that is in electrical contact with a plurality of cable-side contact terminals 212 that are electrically connected to the multi-core cable 20, and a connector contact portion 2012a that is provided adjacent to the connector contact portion 2012a. , A press-fit fixing portion 2012d that is press-fitted and fixed to the cable side case 2011, an offset provided adjacent to the press-fit fixing portion 2012d, formed in a U shape, and a connector fitting direction and a connector fitting A spring portion 2012b having spring properties also in a direction perpendicular to the direction, and bent at the tip of the spring portion 2012b. A board connecting portion 2012c which is fixed in electrical contact with the plurality of contact contact pads 2023 provided on the Le substrate 2022 is formed. The case-side contact terminal 2012 has the effects of enabling downsizing, space saving, improved attachment, and cost reduction, similar to the case-side contact terminal 1012 of the first embodiment.

  In the case side contact terminal 2012 of the second embodiment, the case side contact terminal 2012 is further extended from the board connecting part 2012c, and a loop shape is formed between the spring part 2012b of the case side contact terminal 2012 and the connector contact part 2012a. Thus, a loop contact portion 2012e to be contacted is formed.

  As shown in FIGS. 12A and 12C, the loop contact portion 2012e is in contact with a plurality of contact contact pads 2023 of the module substrate 2022 before being displaced without pressure. In addition, as shown in FIGS. 12B and 12D, a plurality of contact contact pads on the module substrate 2022 are not contacted between the spring portion 2012b of the case side contact terminal 2012 and the connector contact portion 2012a. After contact with 2023, pressure is applied, and after displacement, the spring contacts 2012b of the case-side contact terminals 2012 are contacted with the connector contact portions 2012a. As will be described later, the loop contact portion 2012e contacts between the spring portion 2012b of the case side contact terminal 2012 and the connector contact portion 2012a. Transmission characteristics at high frequencies are improved. In addition, the shape of the spring part 2012b, the board | substrate connection part 2012c, the press-fit fixing part 2012d, and the loop contact part 2012e is not limited to the shape of this embodiment, What is necessary is just a shape which fulfills the function of each part. Further, in the case of using another fixing method instead of fixing by press-fitting, the press-fitting fixing portion 2012d may not be provided.

  As shown in FIG. 12C and FIG. 12D, the loop contact portion 2012e has a wider terminal width than the substrate connection portion 2012c. This is a shape for preventing the loop contact portion 2012e from coming off when coming into contact, and the base side with which the loop contact portion 2012e contacts may be thick. Further, the terminal width is gradually narrowed from the spring portion 2012b to the board connecting portion 2012c, and this is a shape for the spring to function by dispersing stress throughout.

  FIG. 13A is a diagram showing a configuration for measuring the impedance of the case side contact terminal 1012 shown in FIG. 5, and FIG. 13B is a diagram showing the measurement result of FIG. 13 (c) is a diagram showing a configuration for measuring the impedance of the case side contact terminal 2012 shown in FIGS. 12 (a) to 12 (d), and FIG. 13 (d) shows the measurement of FIG. 13 (c). It is a figure which shows a result.

  The impedance measurement results shown in FIG. 13B and FIG. 13D are measurement results of the case-side contact terminals 1012 and 2012 measured by the TDR measurement method in the GHz band. When the measurement result shown in FIG. 13B is compared with the measurement result shown in FIG. 13D, the impedance characteristics of the case side contact terminal 1012 shown in FIG. Thus, it can be seen that the impedance characteristics of the case-side contact terminal 2012 shown in FIGS. 12A to 12D are stable.

  Since the case-side contact terminal 1012 of the first embodiment shown in FIG. 5 considers downsizing and springiness, the board connecting portion 1012c at the tip of the spring portion 1012b is the spring portion 1012b when the contact is displaced. The structure approaches the vicinity of the root, which is a factor that deteriorates the transmission characteristics at high frequencies. On the other hand, in the case-side contact terminal 2012 shown in FIGS. 12A to 12D, the loop contact portion 2012e formed by extending the tip of the substrate connecting portion 2012c at the tip of the spring portion 2012b has a spring. By contacting the vicinity of the root of the portion 2012b, the transmission path is short-circuited, and interference from the spring portion 2012b can be suppressed, and transmission characteristics at high frequencies are improved.

  As described above, according to the module connector of the second embodiment of the present invention, the same effects as those of the module connector of the first embodiment can be obtained, the transmission characteristics at high frequency are improved, and high speed is achieved. A module connector that enables signal transmission can be provided.

  As described above, according to the module connector of the present invention, the connection method between the case side contact terminal attached to the cable side case of the module such as the in-vehicle camera module and the module substrate mounted on the module side case of the module Thus, it is possible to reduce the size, improve the mountability, and reduce the cost. Furthermore, a module connector that enables high-speed signal transmission can be provided.

10, 20 Multi-core cable 11, 21 Signal line 12, 22 Conductor part 110, 210 Cable side connector 111, 211 Cable side connector housing 111a, 211a Opening engaging part 111b, 211b Housing part 111c, 211c Terminal holding part 111d, 211d Terminal receiving hole 112, 212 Cable side contact terminal 113, 213 O-ring 1000, 2000 Car-mounted camera module 1010, 2010 Cable side case assembly 1011, 2011 Cable side case 1011a, 2011a Lock part 1011b, 2011b Cylindrical protrusion part 1011c, 2011c Rib 1012, 2012 Case side contact terminal 1012a, 2012a Connector contact part 1012b, 2012b Spring part 1012c, 2012c Board connection part 1 12d, 2012d press-fit fixing portion 2012e loop contacts 1013,2013 sealant 1020,2020 module casing assembly 1021,2021 module casing 1022,2022 module substrate 1023,2023 contact the contact pads

Claims (9)

A module connector for electrically connecting a cable having a plurality of signal lines and a module substrate inside a module constituted by a module side case and a cable side case,
A plurality of case side contact terminals fixed to the cable side case,
A connector contact portion that is in electrical contact with a plurality of cable-side contact terminals electrically connected to the cable when the connector is fitted;
A spring portion having springiness in the fitting direction of the connector; and
A plurality of cases integrally formed so that the spring portion is disposed between the connector contact portion and the board connection portion; and a board connection portion fixed in electrical contact with the module substrate. Side contact terminals,
Provided on the module substrate fixed to the module-side case, and the substrate connection portions of the plurality of case-side contact terminals are electrically contacted and fixed by contact pressure due to the spring property of the spring portion. A module connector comprising a contact contact pad.   The spring shapes of the plurality of case-side contact terminals facing each other are formed so as to face each other, and the plurality of board connection portions of the plurality of case-side contact terminals are aggregated with each other, whereby the plurality of board connection 2. The module connector according to claim 1, wherein the plurality of contact contact pads that are in contact with each other are arranged in a concentrated manner.   The spring portions of the plurality of case-side contact terminals have the spring property in a direction perpendicular to the connector fitting direction, and the contact contact pads are movable by the spring property of the plurality of case-side contact terminals; The module connector according to claim 1, wherein the module connector is formed to have a size capable of absorbing a fitting shift between the cable side case and the module side case.   The spring portions and the board connection portions of the plurality of case side contact terminals are provided offset from the connector contact portions, and the board connection portions of the plurality of case side contact terminals facing each other are movable by the spring property. The module connector according to claim 1, wherein the module connectors are configured not to contact each other.   The press-fit fixing part for press-fitting and fixing to the cable-side case is provided between the connector contact part and the spring part of the plurality of case-side contact terminals. Module connector.   The module connector according to claim 1, wherein the cable side case is provided with a rib for restricting movement of the spring portion of the plurality of case side contact terminals. The plurality of cable side contact terminals are each insulated and fixed to the cable side connector,
It is configured such that the connector is fitted by engaging a lock portion having a spring shape with a cantilever shape provided in the cable side case and an opening engaging portion provided in the cable side connector. The module connector according to claim 1. A module connector for electrically connecting a cable having a plurality of signal lines and a module substrate inside a module constituted by a module side case and a cable side case,
A plurality of case side contact terminals fixed to the cable side case,
A connector contact portion that is in electrical contact with a plurality of cable-side contact terminals electrically connected to the cable when the connector is fitted;
A spring portion having springiness in the fitting direction of the connector; and
A board connecting portion that is fixed in electrical contact with the module substrate, and is integrally formed so that the spring portion is disposed between the connector contacting portion and the board connecting portion;
The plurality of case-side contacts further formed by extending from the board connecting portion, and further having a loop contact portion that forms a loop shape between the spring portion and the connector contact portion of the case-side contact terminal. A terminal,
Provided on the module substrate fixed to the module-side case, and the substrate connection portions of the plurality of case-side contact terminals are electrically contacted and fixed by contact pressure due to the spring property of the spring portion. A module connector comprising a contact contact pad.   The module connector according to claim 8, wherein the cable having the plurality of signal lines is a signal transmission cable capable of high-speed signal transmission.

Images