WO2011080889A1 - 基板実装コネクタ - Google Patents
基板実装コネクタ Download PDFInfo
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- WO2011080889A1 WO2011080889A1 PCT/JP2010/007379 JP2010007379W WO2011080889A1 WO 2011080889 A1 WO2011080889 A1 WO 2011080889A1 JP 2010007379 W JP2010007379 W JP 2010007379W WO 2011080889 A1 WO2011080889 A1 WO 2011080889A1
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- contact
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- board
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/71—Coupling devices for rigid printing circuits or like structures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
- H01R13/6461—Means for preventing cross-talk
- H01R13/6471—Means for preventing cross-talk by special arrangement of ground and signal conductors, e.g. GSGS [Ground-Signal-Ground-Signal]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/71—Coupling devices for rigid printing circuits or like structures
- H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
- H01R12/722—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures coupling devices mounted on the edge of the printed circuits
- H01R12/724—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures coupling devices mounted on the edge of the printed circuits containing contact members forming a right angle
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/77—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6581—Shield structure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6581—Shield structure
- H01R13/6582—Shield structure with resilient means for engaging mating connector
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6581—Shield structure
- H01R13/6582—Shield structure with resilient means for engaging mating connector
- H01R13/6583—Shield structure with resilient means for engaging mating connector with separate conductive resilient members between mating shield members
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6581—Shield structure
- H01R13/6582—Shield structure with resilient means for engaging mating connector
- H01R13/6583—Shield structure with resilient means for engaging mating connector with separate conductive resilient members between mating shield members
- H01R13/6584—Shield structure with resilient means for engaging mating connector with separate conductive resilient members between mating shield members formed by conductive elastomeric members, e.g. flat gaskets or O-rings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6581—Shield structure
- H01R13/6585—Shielding material individually surrounding or interposed between mutually spaced contacts
Definitions
- the present invention relates to a board-mounted connector having a plurality of contacts each having a ground contact and a signal contact, and these contacts are connected to a circuit board at a board connecting portion, and more particularly to a board-mounted connector that functions as a high-speed differential signal transmission connector. .
- the signal transmission system includes an unbalanced transmission system (single-end system) and a balanced transmission system (differential system).
- the unbalanced transmission method discriminates between high and low of a digital signal by a potential difference between a ground line and a signal line (one line), and is generally used conventionally.
- the balanced transmission method uses two signal lines (+, ⁇ ) to distinguish between High and Low by the potential difference between the two signal lines.
- the two differential signals have the same voltage magnitude and a phase difference of 180 °. In the differential method, noise generated in the two signal lines is canceled at the input stage of the receiver, so that transmission can be performed more reliably than in the single-ended method.
- FIGS. 7A, 7B, and 8 As connectors for high-speed differential signal transmission used in a conventional balanced transmission system (differential system), for example, the connectors shown in FIGS. 7A, 7B, and 8 (see Patent Document 1) are known.
- 7A and 7B show a conventional high-speed differential signal transmission connector.
- FIG. 7A is a schematic view seen from the plane
- FIG. 7B is a schematic view seen from the front.
- FIG. 8 is a side view showing a state in which a part of the high-speed differential signal transmission connector shown in FIGS. 7A and 7B is cut.
- a high-speed differential signal transmission connector (hereinafter simply referred to as a connector) 100 shown in FIGS. 7A, 7 ⁇ / b> B, and 8 includes a housing 110, a plurality of contacts 120, and a shell 130.
- the plurality of contacts 120 includes a plurality of signal contacts S (hereinafter simply referred to as S), a plurality of ground contacts G (hereinafter simply referred to as G), and a plurality of contacts, which are attached to the housing 110 in two rows. It consists of a low speed contact D (hereinafter simply referred to as D). As shown in FIG. 8, each contact 120 includes a contact portion 121 that comes into contact with a mating contact (not shown) and a substrate connection portion 122 that is connected to the circuit board PCB. As shown in FIG. 8, each contact 120 is fixed to the housing 110 by a fixing portion that is horizontal to the housing 110. The contact portion 121 extends substantially horizontally in front of the fixed portion (left side in FIG. 8).
- the board connecting portion 122 extends rearward in the horizontal direction from the fixed portion and then is bent downward at a right angle so as to penetrate the circuit board PCB.
- the upper row of contacts 120 are located on the rear side of the lower row of contacts 120 (the right side in FIG. 8 and the upper side in FIG. 7A) in the board connecting portion 122.
- the contacts 120 in the lower row are located on the front side (the left side in FIG. 8 and the lower side in FIG. 7A) of the contacts 120 in the upper row in the board connection portion 122.
- the plurality of contacts 120 are arranged in the order of S, S, G, S, S, G, D, D from the right side in the upper row in the fitting portion. Be placed.
- the plurality of contacts 120 are arranged in the order of G, S, S, G, S, S, D, and D from the right side in the lower row in the fitting portion.
- the rightmost S in the upper row of the fitting portions and the adjacent S and the rightmost G in the lower row constitute a set P1 of isosceles triangles.
- G in the lower row is arranged at the vertices of the isosceles triangle
- S and S in the upper row are arranged at the two vertices on the base side of the isosceles triangle.
- column is located in the front side, and becomes a vertex of an isosceles triangle.
- adjacent S and S are located on the rear side, and are the two vertices on the base side of the isosceles triangle.
- One of S and S constituting the two vertices of the bottom side is a + signal contact, and the other is a-signal contact.
- S and S adjacent to G of the set P1, and G adjacent to S of the set P1 in the upper row constitute another set P2 of isosceles triangles. Yes.
- G in the upper row is arranged at the vertices of the isosceles triangle
- S and S in the lower row are arranged at the two vertices on the base side of the isosceles triangle.
- G in the upper row is located on the rear side and becomes the apex of the isosceles triangle.
- adjacent S and S in the lower row are located on the front side, and are two vertices on the base side of the isosceles triangle.
- One of S and S constituting the two vertices of the bottom side is a + signal contact, and the other is a-signal contact.
- the shell 130 is configured to cover the housing 110, and a mating plug connector (not shown) is fitted therein.
- the shell 130 is formed with a spring 131 that is engaged with an engagement hole (not shown) formed in the mating plug connector.
- G (ground contact) is arranged at the apex of the isosceles triangle, and S (+ signal contact) is set at the two apexes on the base side of the isosceles triangle. ), S (-signal contact).
- S (-signal contact) is equal to the distance between G (ground contact) and S ( ⁇ signal contact). Therefore, G (ground contact) and S (+ signal contact), G (ground contact) and S ( ⁇ signal contact) are equally matched in impedance, and high-speed differential signal transmission is maintained at high-speed transmission characteristics. Can do. Further, since G (ground contact) is arranged with S (+ signal contact) and S ( ⁇ signal contact), impedance matching can be facilitated.
- this conventional connector 100 has the following problems. That is, S, S, and G of one set P1 between S, S, and G that constitute an adjacent set, for example, S, S, and G that constitute one set P1, and another set P2 that is adjacent to the other set P2. There is a problem in that the electrical length of P2 is different from S and S, and skew (signal shift) occurs. Describing this problem, S, S, and G constituting the set P1 are the rightmost two S and S in the upper row and the rightmost G in the lower row in FIG. 7B. . As shown in FIG.
- S, S, and G that constitute this set P1 are located at the front side of the substrate connection portion 122 of the contact 120, and the apex of the isosceles triangle It becomes.
- adjacent S and S are located on the rear side, and are the two vertices on the base side of the isosceles triangle.
- S and S of S, S, and G constituting this set P1 are in the upper row, and as shown in FIG. 8, the contact portion 121 is started, and a circuit board PCB (Printed Circuit Board) If the goal is a predetermined point in the upper circuit, the electrical length can be expressed as follows.
- L1 is a length from the contact portion 121 (start) of the contact 120 in the upper row to a position where the contact 120 is bent at a right angle
- L2 is a position where the contact 120 is bent to reach the substrate connection portion 122 on the circuit board PCB.
- the length L3 is the length from the substrate connecting portion 122 of the contact to the goal.
- S, S, and G constituting the other set P2 adjacent to the one set P1 are the rightmost two S, S in the lower row and the rightmost in the upper row in FIG. 7B.
- G As shown in FIG. 7A, S, S, and G constituting the other set P2 are located on the rear side in the board connecting portion 122 of the contact 120, and are isosceles triangles. It becomes the apex of Further, adjacent S and S in the lower row are located on the front side, and are two vertices on the base side of the isosceles triangle. And S, S of S, S, and G constituting this other set P2 are in the lower row, and as shown in FIG. 8, the contact portion 121 is started and the circuit on the circuit board PCB is started. If the goal is a predetermined point, the electrical length can be expressed as follows.
- L11 is the length from the contact portion 121 (start) of the contact 120 in the lower row to the position where it is bent at a right angle
- L12 is from the position where the contact 120 is bent to the substrate connection portion 122 on the circuit board PCB
- the length L13 is the length from the substrate connecting portion 122 of the contact to the goal.
- the electrical length L in equation (1) can be expressed as follows using L11, L12, and L13.
- dw is the horizontal length from the substrate connection portion 122 of the lower row contact 120 to the substrate connection portion 122 of the upper row contact 120
- dh is the bent portion of the contact 120 of the upper row to the lower row. This is the vertical length up to the bent portion of the contacts 120 in the row.
- the electrical length L of S and S in one set P1 may be longer by dh than the electrical length L ′ of S and S in the other set P2. Recognize. For this reason, the transmission time from the start to the goal of the signal transmitting S and S in one set P1 is different from the transmission time from the start to the goal of the signal transmitting S and S in the other set P2. In other words, skew (signal shift) occurs between adjacent pairs.
- the problem that skew occurs between the adjacent sets is that, in the substrate connecting portion 122 of the contact 120, S and S of the set P1, which are two vertices on the base side of the isosceles triangle, are located on the rear side, and the isosceles triangle This is due to the fact that S and S of the other set P2, which are the two vertices on the bottom side, are positioned on the front side.
- the problem of skew between adjacent sets similarly occurs between another set P2 and another set P3, and between another set P3 and still another set P4. Accordingly, the present invention has been made in view of the above-described problems, and an object of the present invention is to provide a board-mounted connector that can avoid the occurrence of skew between adjacent sets.
- a board mounted connector includes a housing and a plurality of contacts attached to the housing, and the plurality of contacts extend inward and outward at the board connecting portion.
- the plurality of contacts include a plurality of signal contacts, and one signal contact and one signal contact constitute a set in the board connection portion.
- One of the signal contacts constituting the set is arranged on the inside of the circuit board, and the other of the signal contacts constituting the set is arranged on the outside of the circuit board.
- the signal contacts constituting the set may be constituted by a + signal contact and a ⁇ signal contact.
- a board-mounted connector includes a housing and a plurality of contacts attached to the housing, and the plurality of contacts are connected to a circuit board extending inward and outward at the board connecting portion.
- the plurality of contacts include a ground contact and a signal contact, and in the board connecting portion, one ground contact and two signal contacts constitute a set of triangles, The apex of the triangle is located inside or outside of the circuit board, and one of the signal contacts is arranged at the apex, and the two vertices on the base side of the triangle are opposite to the apex of the triangle. Located outside or inward, the other apex of the signal contact and the ground contact are arranged at the two apexes.
- the triangle is preferably an isosceles triangle. Further, the triangle may be a regular triangle.
- the one ground contact and the two signal contacts constituting the set are in a portion from the contact portion with the counterpart contact to the substrate connection portion, and one ground contact and 1 They may be arranged in the column direction in the order of the pair of signal contacts.
- the signal contact is composed of a + signal contact and a ⁇ signal contact, and the one ground contact, the one + signal contact, and the one ⁇ signal contact are equilateral triangles in the substrate connection portion.
- One of the + signal contact and the ⁇ signal contact is arranged at the apex of the equilateral triangle, and the other of the + signal contact and the ⁇ signal contact and the ground are arranged at the two apexes on the bottom side of the equilateral triangle. It is preferable that contacts are arranged and the board mounted connector functions as a high-speed differential signal transmission connector.
- one signal contact and one signal contact constitute one set in the board connecting portion of the contact, and one of the signal contacts constituting the one set is a circuit board.
- the other of the signal contacts constituting one set is arranged outside the circuit board.
- one ground contact and two signal contacts form a set of triangles at the board connecting portion of the contacts, and the apexes of the triangles are inward of the circuit board.
- one of the signal contacts is arranged at the vertex and the two vertices on the base side of the triangle are located outside or inward of the circuit board opposite to the vertex of the triangle, and the two vertices Is provided with the other of the signal contacts and a ground contact.
- two signal contacts in one set are the apex of the triangle (inside or outside of the circuit board) and the apex on the bottom side (of the circuit board)
- Two signal contacts of another set adjacent to this set are also arranged at the apex of the triangle and the apex on the bottom side. Therefore, there is no difference in the electrical length between the signal contacts between adjacent pairs. Therefore, there is no difference in the transmission time of signals for transmitting signal contacts between adjacent pairs, and no skew occurs.
- substrate mounting connector which concerns on 1st Embodiment of this invention is shown typically, (A) is the schematic diagram which looked at the board mounting connector from the side, (B) is the signal contact in a board
- FIG. 2 schematically shows a board-mounted connector according to a second embodiment of the present invention, in which (A) is a schematic view of the board-mounted connector viewed from the side, and (B) is a signal contact, a ground contact, It is the schematic diagram which showed the arrangement
- FIGS. 4A and 4B are schematic views of the board-mounted connector shown in FIGS. 4A and 4B as viewed from the front, showing the arrangement of signal contacts, ground contacts, and low-speed contacts in the fitting portion. It is a top view of the circuit pattern on the circuit board in which the board
- a conventional high-speed differential signal transmission connector is shown, (A) is a schematic view seen from a plane, and (B) is a schematic view seen from the front. It is a side view which shows the state which cut
- a board-mounted connector 1 shown in FIGS. 1A and 1B functions as a high-speed differential signal transmission connector used in a balanced transmission system (differential system).
- the board mounted connector 1 includes a housing 10, a plurality of contacts 20, and a tine plate 30 that aligns the board connecting portions 22 of the contacts 20.
- the housing 10 is formed by molding an insulating resin and receives a mating plug connector (not shown).
- the plurality of contacts 20 includes a plurality of signal contacts S (hereinafter simply referred to as S), a plurality of ground contacts G (hereinafter simply referred to as G), and a plurality of contacts attached to the housing 10 in two rows. It consists of a low speed contact D (hereinafter simply referred to as D). D is a general contact such as a power source. As shown in FIG. 1A, each contact 20 includes a contact portion 21 that contacts a mating contact (not shown) and a substrate connection portion 22 that is connected to the circuit board PCB. Each contact 20 is formed by punching and bending a metal plate. Each contact 20 is fixed to the housing 10 at a fixed portion horizontal to the housing 10.
- the contact portion 21 extends forward in the horizontal direction from the fixed portion (right side in FIG. 1A).
- the board connecting portion 22 extends rearward in the horizontal direction from the fixed portion, is bent downward at a right angle, and extends so as to penetrate the circuit board PCB.
- the substrate connection portion 22 of the upper row contact 20 and the substrate connection portion 22 of the lower row contact 20 are arranged in the contact row direction at the circuit board PCB as shown in FIGS.
- a staggered array is formed along the vertical direction in FIG. That is, the board connecting portion 22 of the upper row contact 20 and the board connecting portion 22 of the lower row contact 20 are bent at a right angle downward and extended as they are and penetrated the circuit board PCB, and are bent at a right angle downward. In some cases, it is once bent to the rear side (left side in FIGS. 1A and 1B) and then bent downward again to penetrate the circuit board PCB.
- the plurality of contacts 20 are arranged in the order of G, S, S, G, S, S, G, S, S, G from the right side in the upper row as shown in FIG. Is done.
- the plurality of contacts 20 are arranged in the order of D, D, D, G, S, S, G, D, D, D from the right side in the lower row in the fitting portion.
- the first G from the right side and the two S and S subsequent thereto are arranged in the row direction in that order.
- two S and S constitute a set P1.
- one piece G and a pair of S and S are arranged in the column direction in this order and extend in the same plane.
- two S and S constitute a set P1.
- One of the two S and S constituting the set P1 is arranged outside the circuit board PCB (right side in FIG. 1B), and the other is inside the circuit board PCB (FIG. 1). (Left side in (B)).
- One S arranged outside the circuit board PCB is a + signal contact
- the other S arranged inside the circuit board PCB is a minus signal contact opposite to its polarity.
- the + signal contact and the -signal contact may be arranged in reverse.
- One S arranged outside the circuit board PCB is a signal contact through which the board connecting portion 22 penetrates the circuit board PCB as it is.
- the other S and G arranged on the inner side of the circuit board PCB are once again after the board connecting portion 22 is once bent to the rear side (the same as the left side in FIG. 1A and the inside of the circuit board PCB). The contact is bent downward and passes through the circuit board PCB.
- the fourth G from the right side and the subsequent two S and S are arranged in the row direction in that order.
- two S and S constitute another set P2.
- the two S, S constituting the other set P2 and the G adjacent to the right side of the other set P2 are one G in the portion from the contact portion 21 of the mating contact to the board connecting portion 22. And they are arranged in the column direction in the order of a pair of S and S and extend in the same plane.
- two S and S constitute another set P2.
- One of the two S and S constituting the other set P2 is arranged outside the circuit board PCB (right side in FIG. 1B), and the other is inside the circuit board PCB (FIG. 1 (B) on the left side.
- One S arranged outside the circuit board PCB is a minus signal contact
- the other S arranged inside the circuit board PCB is a plus signal contact opposite to its polarity.
- the + signal contact and the -signal contact may be arranged in reverse.
- One S arranged outside the circuit board PCB is a signal contact through which the board connecting portion 22 penetrates the circuit board PCB as it is.
- the other S and G arranged inside the circuit board PCB are contacts penetrating the circuit board PCB after the board connecting portion 22 is once bent to the rear side and then bent downward again.
- the seventh G from the right side and the subsequent two S and S are arranged in the row direction in that order.
- two S and S constitute another set P3.
- two S, S constituting another set P3 and G adjacent to the right side of the other set P3 are one in the portion from the contact portion 21 of the mating contact to the board connecting portion 22.
- G and a pair of S and S are arranged in the column direction in this order and extend in the same plane.
- two S and S comprise another set P3.
- One of the two S and S constituting another set P3 is arranged outside the circuit board PCB (right side in FIG. 1B), and the other is inside the circuit board PCB (see FIG. 1 (B) on the left side.
- One S arranged outside the circuit board PCB is a + signal contact
- the other S arranged inside the circuit board PCB is a minus signal contact opposite to its polarity.
- the + signal contact and the -signal contact may be arranged in reverse.
- One S arranged outside the circuit board PCB is a signal contact through which the board connecting portion 22 penetrates the circuit board PCB as it is.
- the other S and G arranged inside the circuit board PCB are contacts penetrating the circuit board PCB after the board connecting portion 22 is once bent to the rear side and then bent downward again.
- the tenth G from the right side in the upper row of the fitting portion extends from the contact portion 21 of the mating contact to the substrate connection portion 22, and the substrate connection portion 22 is bent at a right angle downward and extends as it is. It penetrates the substrate PCB.
- the substrate connection portion 22 is bent at a right angle downward and extends as it is. It penetrates the substrate PCB.
- three D, D, D from the first to the third from the right side and three D, D, D from the eighth to the tenth from the right side are the mating contacts.
- the contact portion 21 extends from the contact portion 21 to the substrate connection portion 22 and is staggered in the substrate connection portion 22.
- the fourth G from the right side and the subsequent two S and S are arranged in the row direction in that order.
- two S and S constitute another set P4.
- S constituting another set P4 and G adjacent to the right side of the further set P4 from the contact portion 21 of the mating contact to the board connecting portion 22 Each G and a pair of S and S are arranged in the column direction and extend in the same plane.
- two S and S comprise another set P4. Furthermore, one of the two S and S constituting another set P4 is arranged outside the circuit board PCB (right side in FIG. 1B), and the other is inside the circuit board PCB ( It is arranged on the left side in FIG.
- One S arranged outside the circuit board PCB is a minus signal contact, and the other S arranged inside the circuit board PCB is a plus signal contact opposite to its polarity.
- the + signal contact and the -signal contact may be arranged in reverse.
- One S arranged outside the circuit board PCB is a signal contact through which the board connecting portion 22 penetrates the circuit board PCB as it is.
- the other S and G arranged inside the circuit board PCB are contacts penetrating the circuit board PCB after the board connecting portion 22 is once bent to the rear side and then bent downward again.
- the seventh G from the right side in the lower row of the fitting portion extends from the contact portion 21 of the mating contact to the board connecting portion 22.
- the board connecting portion 22 is bent at a right angle downward, then once bent to the rear side, and then bent downward again to penetrate the circuit board PCB.
- the board-mounted connector 1 configured as described above is mounted on a circuit board PCB having the circuit pattern shown in FIG.
- one signal contact S and one signal contact S are formed in the substrate connection portions 22 of the respective sets P1, P2, P3, and P4. It constitutes a set.
- one signal contact S of the two signal contacts S, S constituting the set P ⁇ b> 1 is located outside the circuit board PCB.
- the other signal contact S is disposed inside the circuit board PCB.
- one signal contact S of the two signal contacts S, S constituting the other set P2 adjacent to the one set P1 is disposed outside the circuit board PCB, and the other signal contact S is the circuit board. Arranged inside the PCB.
- one signal contact S of one set P1 and one signal contact S of the other set P2 are arranged outside the circuit board PCB, and their electrical lengths are equal. Further, the other signal contact S of one set P1 and the other signal contact S of the other set P2 are disposed inward of the circuit board PCB, and their electrical lengths are equal. For this reason, there is no difference in electrical length between the signal contacts S and S between the adjacent sets P1 and P2. Therefore, there is no difference in the transmission time of the signal transmitted through the signal contact S between the adjacent sets P1 and P2, and no skew occurs.
- the electrical lengths of the signal contacts S, S and the ground contact G are equal in the portion from the contact portion 21 with the counterpart contact to the substrate connection portion 22.
- the electrical length of the two signal contacts S, S is the same as that of the counterpart contact. It becomes equal in the part from the contact part 21 to the board
- the electrical lengths of the signal contacts S, S and the ground contact G are equal in the portion from the contact portion 21 with the counterpart contact to the substrate connection portion 22.
- the other signal contact S of one set P1 and the other signal contact S of the other set P2 are disposed inward of the circuit board PCB at the board connecting portion 22.
- the electrical length X of the signal contact S disposed inside the circuit board PCB in the board connection portion 22 is determined on the circuit board PCB from the start of the contact portion 21 of the signal contact S. It is the length to reach the goal of a predetermined point.
- These electrical lengths X are represented by the following formula in FIG.
- X1 is a length from the contact portion 21 (start) of the signal contact S in the upper row to a portion bent at a right angle
- X2 is a length from the bent portion of the signal contact S to the substrate connection portion 22
- X3 is a length from the time when the board connecting portion 22 is bent once to the rear side and then bent downward again
- X4 is a length from the position where it is bent again downward to the circuit board PCB
- X5 is , The length from the board connecting portion 22 to the goal.
- each set P1, P2, P3, the electrical length X ′ of the signal contact S arranged outside the circuit board PCB in the board connection part 22 is determined on the circuit board PCB from the start of the contact part 21 of the signal contact S. It is the length to reach the goal of a predetermined point.
- X1 is a length from the contact portion 21 (start) of the signal contact S in the upper row to a portion bent at a right angle
- X2 is a length from the bent portion of the signal contact S to the substrate connection portion 22
- X3 is a length from the time when the board connection portion 22 is bent once to the rear side and then bent downward again
- X4 ′ reaches the circuit board PCB at the board connection portion 22 of the signal contact S in the upper row. Is the length.
- electrical lengths X ′ are common to all of the signal contacts S arranged on the outside of the circuit board PCB in the board connecting portion 22 in each of the sets P1, P2, and P3. There is no difference in the transmission time of signals transmitted through the signal contacts S between the groups P1, P2, and P3, and no skew occurs.
- the electrical length X of the signal contact S arranged inside the circuit board PCB and the signal contact S arranged outside the circuit board PCB in the board connecting part 22 Contrast with electrical length X ′.
- the board mounted connector 1 shown in FIGS. 4 (A), 4 (B) to 6 is a balanced transmission system, similarly to the board mounted connector 1 shown in FIGS. 1 (A), (B) to FIG. It functions as a high-speed differential signal transmission connector used in (differential system).
- the board mounted connector 1 shown in FIGS. 4A and 4B to FIG. 6 is different from the board mounted connector 1 shown in FIGS. 1A and 1B as follows. That is, in the board-mounted connector 1 shown in FIGS. 1A and 1B to FIG. 3, one signal contact S and one signal contact S form a set in the board connection portion 22. On the other hand, in the board mounted connector 1 shown in FIGS. 4 (A), 4 (B) to 6, in the board connecting portion 22, one ground contact G and two signal contacts S, S are a pair of triangles. It is different in that it constitutes.
- the board mounted connector 1 in the upper row of the fitting portion, the first G from the right side and the G The following two S and S are arranged in the column direction in that order to constitute a set P1. Then, one G and two S, S constituting one set P1 are composed of one G and a pair of S, S in the part from the contact portion 21 of the mating contact to the board connecting portion. They are arranged in order in the column direction and extend in the same plane.
- one G and two S, S comprise the set P1 of an equilateral triangle.
- the vertices of the equilateral triangle that constitutes the set P1 of equilateral triangles are located on the outside (right side in FIG. 4B) of the circuit board PCB extending in the inside / outside direction (left-right direction in FIG. 4B).
- one of S and S (a signal contact through which the board connecting portion 22 directly penetrates the circuit board PCB) is arranged.
- the two vertices on the bottom side of the equilateral triangle are located inside the circuit board PCB.
- the fourth G from the right side and the subsequent two S and S are arranged in the row direction in that order, so that another set P2 is configured.
- the part between one G and two S, S constituting the other set P2 from the contact part 21 of the mating contact to the board connecting part 22, one G and one pair of They are arranged in the column direction in the order of S and S and extend in the same plane.
- substrate connection part 22 of the contact 20 as shown to FIG. 4 (B)
- one G and two S, S comprise the other set P2 of an equilateral triangle.
- the vertices of the equilateral triangle constituting the other pair P2 of equilateral triangles are located inward of the circuit base PCB extending inward and outward (leftward in FIG. 4B). At the apex of this equilateral triangle, one of S and S (a signal contact penetrating the circuit board PCB after the board connecting portion 22 is once bent back and then bent downward) is arranged. Yes. Two vertices on the bottom side of the equilateral triangle are located outside the circuit board PCB.
- S the signal contact through which the board connecting portion 22 extends and passes through the circuit board PCB
- G the board connecting section 22 extends as it is and passes through the circuit board PCB.
- Ground contact is arranged.
- S arranged at the apex of the equilateral triangle is a + signal contact
- S arranged at the apex on the base side of the equilateral triangle is a minus signal contact opposite to its polarity.
- the + signal contact and the ⁇ signal contact may be arranged in reverse.
- the seventh G from the right side and the subsequent two S, S are arranged in the row direction in that order, so that another set P3 is configured.
- One G and two S, S constituting another set P3 are in a part from the contact portion 21 of the mating contact to the board connecting portion 22 and one G and a pair of They are arranged in the column direction in the order of S and S and extend in the same plane.
- substrate connection part 22 of the contact 20 as shown to FIG. 4 (B), one G and two S and S comprise another set P3 of an equilateral triangle.
- the vertices of the equilateral triangle constituting another set P3 of equilateral triangles are located outside the circuit base PCB extending in the inward and outward directions (to the right in FIG. 4B). At one apex of the equilateral triangle, one of S and S (a signal contact through which the board connecting portion 22 passes through the circuit board PCB as it is) is arranged. On the other hand, the two vertices on the bottom side of the equilateral triangle are located inside the circuit board PCB.
- the tenth G from the right side in the upper row of the fitting portion extends from the contact portion 21 of the mating contact to the substrate connection portion 22, and the substrate connection portion 22 is bent at a right angle downward and extends as it is. It penetrates the substrate PCB.
- the substrate connection portion 22 is bent at a right angle downward and extends as it is. It penetrates the substrate PCB.
- three D, D, D from the first to the third from the right side and three D, D, D from the eighth to the tenth from the right side are the mating contacts.
- the contact portion 21 extends from the contact portion 21 to the substrate connection portion 22 and is staggered in the substrate connection portion 22.
- the fourth G from the right side and the subsequent two S and S are arranged in the row direction in that order.
- a set P4 is configured.
- one G and one pair of S and S constituting another set P4 are formed in a portion from the contact portion 21 of the mating contact to the substrate connecting portion 22. Are arranged in the column direction in the order of S and S and extend in the same plane.
- substrate connection part 22 of the contact 20 as shown in FIG.4 (B), one G and two S, S comprise the further another set P4 of an equilateral triangle.
- the vertices of the equilateral triangle constituting another set P4 of equilateral triangles are located inward of the circuit base PCB extending inward and outward (leftward in FIG. 4B). At the apex of this equilateral triangle, one of S and S (a signal contact penetrating the circuit board PCB after the board connecting portion 22 is once bent back and then bent downward) is arranged. Yes. On the other hand, the two vertices on the bottom side of the equilateral triangle are located outside the circuit board PCB.
- S the signal contact through which the board connecting portion 22 extends and passes through the circuit board PCB
- G the board connecting section 22 extends as it is and passes through the circuit board PCB.
- Ground contact is arranged.
- S arranged at the apex of the equilateral triangle is a + signal contact
- S arranged at the apex on the base side of the equilateral triangle is a minus signal contact opposite to its polarity.
- the + signal contact and the ⁇ signal contact may be arranged in reverse.
- the seventh G from the right side in the lower row of the fitting portion extends from the contact portion 21 of the mating contact to the board connecting portion 22.
- the board connecting portion 22 is bent at a right angle downward, then once bent to the rear side, and then bent downward again to penetrate the circuit board PCB.
- the board-mounted connector 1 configured as described above is mounted on the circuit board PCB having the circuit pattern shown in FIG.
- one ground contact G and one + signal contact S are provided in the substrate connection portion 22 of each set P1, P2, P3, and P4.
- One minus signal contact S constitutes a set of equilateral triangles.
- One of the + signal contact S and the ⁇ signal contact S is arranged at the apex of the equilateral triangle, and the other of the + signal contact S and the ⁇ signal contact S and the ground contact G are arranged at the two apexes on the bottom side of the equilateral triangle. And function as a connector for high-speed differential signal transmission.
- the board-mounted connector 1 in the present embodiment as in the board-mounted connector 1 shown in FIGS. 1 (A), (B) to FIG. 3, consider between adjacent groups, specifically between P1 and P2.
- the two signal contacts S, S of the set P1 are the apexes of the equilateral triangle (outward of the circuit board PCB). Arranged at the apex on the bottom side (inward of the circuit board PCB).
- the two signal contacts S and S of the other set P2 adjacent to the set P1 are also respectively connected to the apex of the equilateral triangle (inward of the circuit board PCB) and the apex on the base side (outward of the circuit board PCB). Be placed.
- the signal contact S at the base of the base triangle of the set P1 and the signal contact S at the apex of the equilateral triangle of the other set P2 are connected to the circuit board PCB. Arranged inward, their electrical length is equal.
- the signal contacts S at the apexes of the regular triangle of one set P1 and the signal contacts S at the base side apex of the equilateral triangle of the other set P2 are arranged outside the circuit board PCB, and their electrical lengths are equal. For this reason, there is no difference in electrical length between the signal contacts S and S between the adjacent sets P1 and P2. Therefore, there is no difference in the transmission time of the signal transmitted through the signal contact S between the adjacent sets P1 and P2, and no skew occurs.
- one ground contact G and two signal contacts S, S constituting one set P1 reach the board connecting part 22 from the contact part 21 with the mating contact.
- one ground contact G and a pair of signal contacts S, S are arranged in the same plane in the column direction. For this reason, the electrical lengths of the two signal contacts S, S (X1 + X2 in FIG.
- the electrical length is equal in the portion from the contact portion 21 with the counterpart contact to the substrate connection portion 22.
- the electrical lengths of the signal contacts S, S and the ground contact G are equal in the portion from the contact portion 21 with the counterpart contact to the substrate connection portion 22.
- the electrical length X of the signal contact S disposed inside the circuit board PCB in the board connection portion 22 is determined on the circuit board PCB from the start of the contact portion 21 of the signal contact S. It is the length to reach the goal of a predetermined point.
- X1 is a length from the contact portion 21 (start) of the signal contact S in the upper row to a portion bent at a right angle
- X2 is a length from the bent portion of the signal contact S to the substrate connection portion 22
- X3 is a length from the time when the board connecting portion 22 is bent once to the rear side and then bent downward again
- X4 is a length from the position where it is bent again downward to the circuit board PCB
- X5 is , The length from the board connecting portion 22 to the goal.
- each set P1, P2, P3, the electrical length X ′ of the signal contact S arranged outside the circuit board PCB in the board connection part 22 is determined on the circuit board PCB from the start of the contact part 21 of the signal contact S. It is the length to reach the goal of a predetermined point.
- X1 is a length from the contact portion 21 (start) of the signal contact S in the upper row to a portion bent at a right angle
- X2 is a length from the bent portion of the signal contact S to the substrate connection portion 22
- X3 is a length from the time when the board connection portion 22 is bent once to the rear side and then bent downward again
- X4 ′ reaches the circuit board PCB at the board connection portion 22 of the signal contact S in the upper row. Is the length.
- electrical lengths X ′ are common to all of the signal contacts S arranged on the outside of the circuit board PCB in the board connecting portion 22 in each of the sets P1, P2, and P3. Accordingly, there is no difference in the transmission time of the signal transmitted through the signal contact S between the groups P1, P2, and P3, and no skew occurs.
- the electrical length X of the signal contact S arranged inside the circuit board PCB and the signal contact S arranged outside the circuit board PCB in the board connecting part 22 Contrast with electrical length X ′.
- one ground contact G and two signal contacts S, S in the substrate connecting portion 22 constitute a set of equilateral triangles.
- the distance between G (ground contact) and one S (+ signal contact) is equal to the distance between G (ground contact) and a separate S ( ⁇ signal contact). Therefore, equal impedance matching of G (ground contact) and S (+ signal contact) and G (ground contact) and S ( ⁇ signal contact) can be achieved, and high speed transmission characteristics can be maintained in high speed differential signal transmission. Can do. Further, since G (ground contact) is arranged with S (+ signal contact) and S ( ⁇ signal contact), impedance matching can be facilitated.
- one ground contact G and two signal contacts S and S form not only an equilateral triangle but also a pair of triangles and isosceles triangles having three different sides. Any mounting connector may be used.
- the triangle is an isosceles triangle, the distance X3 between one signal contact and the ground contact is the same as the distance X3 between one signal contact and the other signal contact.
- the board connecting portion may be a surface mount type in addition to the circuit board through type.
Landscapes
- Coupling Device And Connection With Printed Circuit (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
Description
なお、信号伝送方式について簡単に説明すると、信号伝送方式には不平衡伝送方式(シングルエンド方式)と、平衡伝送方式(ディファレンシャル方式)とがある。
これに対して、平衡伝送方式(ディファレンシャル方式)は、2本の信号線(+、-)を用いて、2本の信号線の電位差でHighとLowとを区別する。ディファレンシャル方式の2つの信号は、電圧の大きさが等しく、位相が180°異なる。ディファレンシャル方式は、2本の信号線に生じたノイズがレシーバの入力段階でキャンセルされるので、シングルエンド方式に比べて確実に伝送することができる。
図7(A),(B)及び図8に示す高速ディファレンシャル信号伝送用コネクタ(以下、単にコネクタという)100は、ハウジング110と、複数のコンタクト120と、シェル130とを具備している。
嵌合部の上段の列において最右側のS及び隣り合うSと下段の列における最右側のGが二等辺三角形の一組P1を構成している。そして、二等辺三角形の頂点には下段の列におけるGが配置され、二等辺三角形の底辺側の2頂点には上段の列におけるS、Sが配置されている。そして、コンタクト120の基板接続部122においては、図7(A)に示すように、下段の列におけるGが前側に位置し、二等辺三角形の頂点となる。また、上段の列において隣接するS、Sが後側に位置し、二等辺三角形の底辺側の2頂点となっている。この底辺側2頂点を構成するS、Sのうち一方が+信号コンタクト、他方が-信号コンタクトとなっている。
また、シェル130は、ハウジング110を覆うように構成され、その内部に相手プラグコネクタ(図示せず)が嵌合されるようになっている。シェル130には、相手プラグコネクタに形成された係合孔(図示せず)に係合されるばね131が形成されている。
また、S(+信号コンタクト)とS(-信号コンタクト)とによりG(接地コンタクト)を挟んで配列するので、インピーダンスマッチングを容易にすることができる。
即ち、隣接した組、例えば一組P1を構成するS、S、Gとその隣り合う他の組P2を構成するS、S、Gとの間において、一組P1のS、Sと他の組P2のS、Sとの電気長が異なり、スキュー(信号のずれ)が発生する問題があった。この問題について説明すると、一組P1を構成するS、S、Gは、図7(B)において、上段の列の最右側2つのS、Sと、下段の列の最右側のGとでなる。この一組P1を構成するS、S、Gは、コンタクト120の基板接続部122においては、図7(A)に示すように、下段の列におけるGが前側に位置し、二等辺三角形の頂点となる。また、上段の列において隣接するS、Sが後側に位置し、二等辺三角形の底辺側の2頂点となっている。そして、この一組P1を構成するS、S、GのうちS、Sは、上段の列にあり、図8に示すように、その接触部121をスタートとし、回路基板PCB(Printed Circuit Board)上の回路の所定ポイントをゴールとすると電気長は次のように表わせる。
ここで、L1は上段の列のコンタクト120の接触部121(スタート)から直角に折れ曲がるところまでの長さ、L2は当該コンタクト120の折れ曲がったところから回路基板PCB上の基板接続部122に至るまでの長さ、L3は当該コンタクトの基板接続部122からゴールに至るまでの長さである。
ここで、L11は下段の列のコンタクト120の接触部121(スタート)から直角に折れ曲がるところまでの長さ、L12は当該コンタクト120の折れ曲がったところから回路基板PCB上の基板接続部122に至るまでの長さ、L13は当該コンタクトの基板接続部122からゴールに至るまでの長さである。
一組P1のS、Sの電気長L=(L11+dw)+(L12+dh)+(L13-dw)=L11+L12+L13+dh …(3)
ここで、dwは下段の列のコンタクト120の基板接続部122から上段の列のコンタクト120の基板接続部122に至るまでの水平方向長さ、dhは上段の列のコンタクト120の折れ曲がり部分から下段の列のコンタクト120の折れ曲がり部分に至るまでの垂直方向長さである。
このため、一組P1のS、Sを伝送する信号のスタートからゴールまでの伝送時間と、他の組P2のS、Sを伝送する信号のスタートからゴールまでの伝送時間とが異なることになり、隣接する組間でスキュー(信号のずれ)が発生してしまうことになる。
この隣接する組間でのスキューの問題は、他の組P2と別の組P3、別の組P3と更に別の組P4との間でも同様に発生する。
従って、本発明は上述の問題点に鑑みてなされたものであり、その目的は、隣接する組間でスキューが発生するのを回避できる基板実装コネクタを提供することにある。
また、前記一組を構成する信号コンタクトが+信号コンタクトと-信号コンタクトで構成されていてもよい。
更に、前記三角形は正三角形であってもよい。
また、前記一組を構成する前記1個の接地コンタクト及び前記2個の信号コンタクトが、相手コンタクトとの接触部から前記基板接続部に至るまでの間の部分において、1個の接地コンタクト及び1対の信号コンタクトの順に列方向に配列されていてもよい。
図1(A),(B)に示す基板実装コネクタ1は、平衡伝送方式(ディファレンシャル方式)に用いられる高速ディファレンシャル信号伝送用コネクタとして機能するものである。
基板実装コネクタ1は、ハウジング10と、複数のコンタクト20と、これらコンタクト20の基板接続部22を整列させるタインプレート30とを具備している。
ハウジング10は、絶縁性の樹脂を成形することによって形成され、相手プラグコネクタ(図示せず)を受容するようになっている。
嵌合部の上段の列において、図2に示すように、右側から1番目の1個のGとそれに続く2個のS、Sがその順番に列方向に配列されている。このうち、2個のS,Sが一組P1を構成している。そして、一組P1を構成する2個のS、Sとその一組P1の右側に隣接するGが、相手コンタクトの接触部21から基板接続部22に至るまでの間の部分において、1個のG及び1対のS、Sの順に列方向に配列されて同一平面内に延びている。
一方、嵌合部の下段の列においては、右側から1番目から3番目までの3個のD、D、D及び右側から8番目から10番目の3個のD、D、Dが、相手コンタクトの接触部21から基板接続部22に至るまで延び、基板接続部22において千鳥配列される。
このように構成された基板実装コネクタ1は、図3に示した回路パターンを有する回路基板PCB上に実装される。
本実施形態においては、図1(B)及び図3に示すように、各組P1、P2,P3、P4の基板接続部22において、1個の信号コンタクトSと1個の信号コンタクトSとが一組を構成している。
また、本実施形態における基板実装コネクタ1においては、一組P1を構成する2個の信号コンタクトS、Sが、相手コンタクトとの接触部21から基板接続部22に至るまでの間の部分において、1対の信号コンタクトS、Sの順に列方向に同一平面内に配列されている。このため、相手コンタクトとの接触部21から基板接続部22に至るまでの間の部分において、2個の信号コンタクトS、Sの電気長(図1(A)におけるX1+X2)は等しくなる。これにより、2個の信号コンタクトS、Sを伝送する信号の伝送時間に差はなくなり、スキューは発生しない。また、これら信号コンタクトS、Sと接地コンタクトGの電気長も相手コンタクトとの接触部21から基板接続部22に至るまでの間の部分において等しくなる。
各組P1、P2、P3で、基板接続部22において、回路基板PCBの内方に配置される信号コンタクトSの電気長Xは、それら信号コンタクトSの接触部21のスタートから回路基板PCB上の所定ポイントのゴールに至るまでの長さである。これらの電気長Xは、図1(A)において、下式で表わされる。
ここで、X1は上段の列の信号コンタクトSの接触部21(スタート)から直角に折れ曲がるところまでの長さ、X2は当該信号コンタクトSの折れ曲がったところから基板接続部22に至るまでの長さ、X3は、基板接続部22において一旦後側に折り曲げられてから再度下方に折り曲げられるところまでの長さ、X4は、再度下方に折り曲げられるところから回路基板PCBに至るまでの長さ、X5は、基板接続部22からゴールに至るまでの長さである。
また、各組P1、P2、P3で、基板接続部22において回路基板PCBの外方に配置される、一組P1の一方の信号コンタクトS、他の組P2の一方の信号コンタクトS、及び別の組P3の一方の信号コンタクトSの電気長について考察する。
電気長X’=X1+X2+X4’+X3+X5 …(5)
また、各組P1、P2、P3で、基板接続部22において、回路基板PCBの内方に配置される信号コンタクトSの電気長Xと、回路基PCBの外方に配置される信号コンタクトSの電気長X’とを対比する。
従って、(5)式は以下のように変形できる。
電気長X’=X1+X2+X3+X4+X5 …(6)
(4)式と(6)式とを対比すると、電気長Xと電気長X’とはほぼ等しいことがわかる。
本実施形態に係る図4(A),(B)乃至図6に示す基板実装コネクタ1は、図1(A),(B)乃至図3に示す基板実装コネクタ1と同様に、平衡伝送方式(ディファレンシャル方式)に用いられる高速ディファレンシャル信号伝送用コネクタとして機能するものである。
即ち、図1(A),(B)乃至図3に示す基板実装コネクタ1が、基板接続部22において、1個の信号コンタクトSと1個の信号コンタクトSとが一組を構成するのに対して、図4(A),(B)乃至図6に示す基板実装コネクタ1が、基板接続部22において、1個の接地コンタクトGと2個の信号コンタクトS,Sとが三角形の一組を構成する点で相違している。
一方、嵌合部の下段の列においては、右側から1番目から3番目までの3個のD、D、D及び右側から8番目から10番目の3個のD、D、Dが、相手コンタクトの接触部21から基板接続部22に至るまで延び、基板接続部22において千鳥配列される。
このように構成された基板実装コネクタ1は、図6に示した回路パターンを有する回路基板PCB上に実装される。
また、本実施形態における基板実装コネクタ1においては、一組P1を構成する1個の接地コンタクトG及び2個の信号コンタクトS、Sが、相手コンタクトとの接触部21から基板接続部22に至るまでの間の部分において、1個の接地コンタクトG及び1対の信号コンタクトS、Sの順に列方向に同一平面内に配列されている。このため、相手コンタクトとの接触部21から基板接続部22に至るまでの間の部分において、2個の信号コンタクトS、Sの電気長(図4(A)におけるX1+X2)は等しくなる。これにより、2個の信号コンタクトS、Sを伝送する信号の伝送時間に差はなくなり、スキューは発生しない。また、これら信号コンタクトS、Sと接地コンタクトGの電気長も相手コンタクトとの接触部21から基板接続部22に至るまでの間の部分において等しくなる。
各組P1、P2、P3で、基板接続部22において、回路基板PCBの内方に配置される信号コンタクトSの電気長Xは、それら信号コンタクトSの接触部21のスタートから回路基板PCB上の所定ポイントのゴールに至るまでの長さである。これらの電気長Xは、図4(A)において、下式で表わされる。
ここで、X1は上段の列の信号コンタクトSの接触部21(スタート)から直角に折れ曲がるところまでの長さ、X2は当該信号コンタクトSの折れ曲がったところから基板接続部22に至るまでの長さ、X3は、基板接続部22において一旦後側に折り曲げられてから再度下方に折り曲げられるところまでの長さ、X4は、再度下方に折り曲げられるところから回路基板PCBに至るまでの長さ、X5は、基板接続部22からゴールに至るまでの長さである。
また、各組P1、P2、P3で、基板接続部22において、回路基板PCBの外方に配置される、一組P1の正三角形の頂点の信号コンタクトS、他の組P2の正三角形の底辺側頂点の信号コンタクトS、及び別の組P3の正三角形の頂点の信号コンタクトSの電気長について考察する。
電気長X’=X1+X2+X4’+X3+X5 …(8)
また、各組P1、P2、P3で、基板接続部22において、回路基板PCBの内方に配置される信号コンタクトSの電気長Xと、回路基板PCBの外方に配置される信号コンタクトSの電気長X’とを対比する。
従って、(8)式は以下のように変形できる。
電気長X’=X1+X2+X3+X4+X5 …(9)
(7)式と(9)式とを対比すると、電気長Xと電気長X’とはほぼ等しいことがわかる。
また、S(+信号コンタクト)とS(-信号コンタクト)とによりG(接地コンタクト)を挟んで配列するので、インピーダンスマッチングを容易にすることができる。
例えば、基板接続部22において、1個の接地コンタクトGと2個の信号コンタクトS、Sとが正三角形のみならず、三辺の長さが異なる三角形や二等辺三角形の一組を構成する基板実装コネクタであればよい。三角形が二等辺三角形の場合は、一方の信号コンタクト及び接地コンタクト間の距離X3と、一方の信号コンタクト及び他方の信号コンタクト間の距離X3とが同一になる。また、三角形が正三角形の場合は、接地コンタクトから一方及び他方の信号コンタクトまでの距離が完全に同一になるので、双方の信号コンタクトにおける接地コンタクトとの結合に差が全くなくなる。
さらに、基板接続部は、回路基板貫通型のほかに、表面実装型であってもよい。
10 ハウジング
20 コンタクト
21 接触部
22 基板接続部
PCB 回路基板
G 接地コンタクト
S 信号コンタクト
P1 一組
P2 他の組
P3 別の組
P4 更に別の組
Claims (7)
- ハウジングと、該ハウジングに取り付けられた複数のコンタクトとを備え、該複数のコンタクトが基板接続部において内外方向に延びる回路基板に接続される基板実装コネクタにおいて、
前記複数のコンタクトは、複数の信号コンタクトを備え、
前記基板接続部において、1個の前記信号コンタクトと1個の前記信号コンタクトとが一組を構成し、
該一組を構成する信号コンタクトの一方が前記回路基板の内方に配置され、前記一組を構成する信号コンタクトの他方が前記回路基板の外方に配置されることを特徴とする基板実装コネクタ。 - 前記一組を構成する信号コンタクトが+信号コンタクトと-信号コンタクトで構成されることを特徴とする請求項1記載の基板実装コネクタ。
- ハウジングと、該ハウジングに取り付けられた複数のコンタクトとを備え、該複数のコンタクトが基板接続部において内外方向に延びる回路基板に接続される基板実装コネクタにおいて、
前記複数のコンタクトは、接地コンタクトと信号コンタクトとを備え、
前記基板接続部において、1個の前記接地コンタクトと2個の前記信号コンタクトとが三角形の一組を構成し、
三角形の頂点は前記回路基板の内方又は外方に位置するとともに、前記頂点には前記信号コンタクトの一方が配置され、三角形の底辺側の2頂点は前記三角形の頂点と反対の前記回路基板の外方又は内方に位置するとともに、前記2頂点には、前記信号コンタクトの他方及び前記接地コンタクトが配置されていることを特徴とする基板実装コネクタ。 - 前記三角形は二等辺三角形であることを特徴とする請求項3記載の基板実装コネクタ。
- 前記三角形は正三角形であることを特徴とする請求項3記載の基板実装コネクタ。
- 前記一組を構成する前記1個の接地コンタクト及び前記2個の信号コンタクトが、相手コンタクトとの接触部から前記基板接続部に至るまでの間の部分において、1個の接地コンタクト及び1対の信号コンタクトの順に列方向に配列されていることを特徴とする請求項3乃至5のうちいずれか一項に記載の基板実装コネクタ。
- 前記信号コンタクトが+信号コンタクトと-信号コンタクトとで構成され、
前記基板接続部において、前記1個の接地コンタクトと1個の前記+信号コンタクトと1個の前記-信号コンタクトとが正三角形の一組を構成し、
正三角形の頂点には前記+信号コンタクト及び-信号コンタクトの一方が配置され、正三角形の底辺側の2頂点には前記+信号コンタクト及び-信号コンタクトの他方及び前記接地コンタクトが配置され、高速ディファレンシャル信号伝送用コネクタとして機能することを特徴とする請求項5又は6記載の基板実装コネクタ。
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JP2011547296A JP5607652B2 (ja) | 2009-12-28 | 2010-12-20 | 基板実装コネクタ |
CN201080059858.5A CN102656755B (zh) | 2009-12-28 | 2010-12-20 | 基板安装连接器 |
US13/536,162 US20120270420A1 (en) | 2009-12-28 | 2012-06-28 | Board Mounted Connector |
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JP (1) | JP5607652B2 (ja) |
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KR101330557B1 (ko) | 2012-09-27 | 2013-11-18 | 올 베스트 일렉트로닉스 컴파니 리미티드 | 전기 커넥터 |
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US8920194B2 (en) * | 2011-07-01 | 2014-12-30 | Fci Americas Technology Inc. | Connection footprint for electrical connector with printed wiring board |
US9545004B2 (en) * | 2013-01-29 | 2017-01-10 | Fci Americas Technology Llc | Printed circuit board having orthogonal signal routing |
CN104134881B (zh) * | 2013-05-15 | 2017-11-10 | 中航光电科技股份有限公司 | 差分连接器传输模块及使用该模块的差分连接器 |
US10051724B1 (en) | 2014-01-31 | 2018-08-14 | Apple Inc. | Structural ground reference for an electronic component of a computing device |
US9525222B2 (en) | 2014-04-11 | 2016-12-20 | Apple Inc. | Reducing or eliminating board-to-board connectors |
US9666967B2 (en) * | 2014-07-28 | 2017-05-30 | Apple Inc. | Printed circuit board connector for non-planar configurations |
US10945664B1 (en) | 2015-09-30 | 2021-03-16 | Apple, Inc. | Protective case with coupling gasket for a wearable electronic device |
CN110891369A (zh) | 2018-09-07 | 2020-03-17 | 富加宜(美国)有限责任公司 | 低成本高速印刷电路板的连接器 |
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TWM281314U (en) * | 2005-04-01 | 2005-11-21 | Molex Taiwan Ltd | Electrical connector assembly |
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JP4551868B2 (ja) * | 2005-12-28 | 2010-09-29 | 日本航空電子工業株式会社 | コネクタ |
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- 2010-12-20 CN CN201080059858.5A patent/CN102656755B/zh not_active Expired - Fee Related
- 2010-12-20 KR KR1020127016725A patent/KR20120112497A/ko not_active Application Discontinuation
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JP2005293970A (ja) * | 2004-03-31 | 2005-10-20 | Taiko Denki Co Ltd | レセプタクル |
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JP5607652B2 (ja) | 2014-10-15 |
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JPWO2011080889A1 (ja) | 2013-05-09 |
CN102656755B (zh) | 2015-05-06 |
KR20120112497A (ko) | 2012-10-11 |
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