Relay board, differential transmission wire with relay board, and cable with connector
阅读说明:本技术 中继基板、带中继基板的差分传送用电线及带连接器的线缆 (Relay board, differential transmission wire with relay board, and cable with connector ) 是由 福田启一郎 大谷木将贵 中西彻 樱井涉 于 2019-07-25 设计创作,主要内容包括:中继基板具有:多个第一焊盘,它们在第一方向上排列;多个第二焊盘,它们在第二方向上排列;以及配线,其分别连接多个第一焊盘和多个第二焊盘。第二方向相对于第一方向以规定的角度倾斜。规定的角度大于0度而小于90度。(The relay substrate includes: a plurality of first pads arranged in a first direction; a plurality of second pads arranged in a second direction; and wires connecting the plurality of first pads and the plurality of second pads, respectively. The second direction is inclined at a prescribed angle with respect to the first direction. The prescribed angle is greater than 0 degrees and less than 90 degrees.)
1. A relay substrate includes:
a plurality of first pads arranged in a first direction;
a plurality of second pads arranged in a second direction; and
wires respectively connecting the plurality of first pads and the plurality of second pads,
the second direction is inclined at a prescribed angle with respect to the first direction,
the prescribed angle is greater than 0 degrees and less than 90 degrees.
2. The relay substrate according to claim 1,
the prescribed angle is greater than or equal to 30 degrees and less than or equal to 60 degrees.
3. A differential transmission wire with a relay board, comprising:
a relay substrate having a plurality of first pads arranged in a first direction, a plurality of second pads arranged in a second direction, and wires connecting the plurality of first pads and the plurality of second pads, respectively; and
a plurality of electric wires for differential transmission,
the plurality of differential transmission wires are connected to the plurality of first pads respectively,
the second direction is inclined at a prescribed angle with respect to the first direction, the prescribed angle being greater than 0 degrees and less than 90 degrees.
4. A cable with a connector, which has a connector and a cable,
the connector has:
a relay substrate having a plurality of first pads arranged in a first direction, a plurality of second pads arranged in a second direction, and wires connecting the plurality of first pads and the plurality of second pads, respectively;
a case that accommodates the relay board; and
a plurality of connector terminals arranged in the second direction,
the plurality of second pads are connected to the plurality of connector terminals,
the cable has a plurality of wires for differential transmission, is led out from the housing in a state of being bundled,
the plurality of differential transmission wires are connected to the plurality of first pads respectively,
the second direction is inclined at a prescribed angle with respect to the first direction, the prescribed angle being greater than 0 degrees and smaller than 90 degrees,
the second direction is the same direction as a direction in which the cable is led out from the housing.
Technical Field
The present invention relates to a relay board, a differential transmission wire with a relay board, and a cable with a connector.
The present application claims priority based on japanese patent application No. 2018-165444 applied on 9/4/2018, and the entire contents of the description in the application are cited.
Background
Patent documents 1 to 3 disclose cable-equipped connectors having relay boards. The relay board is provided with: pads (wire pads) to which a plurality of wires included in the cable are soldered, respectively; and a pad (connector pad) connected with the pin of the connector.
The lead pads and the connector pads are arranged in a direction orthogonal to the longitudinal direction of the cable, and the wiring between the lead pads and the connector pads is formed in a linear shape.
Further, patent document 4 discloses a right-angled socket connector for connecting a cable to a printed circuit board in an electronic device (such as a communication device).
Patent document 1: japanese patent laid-open publication No. 2000-68007
Patent document 2: japanese patent laid-open publication No. 2004-31257
Patent document 3: japanese patent laid-open publication No. 2004-253272
Patent document 4: japanese patent laid-open publication No. 2009-205972
Disclosure of Invention
A relay board according to an aspect of the present invention includes:
a plurality of first pads arranged in a first direction;
a plurality of second pads arranged in a second direction; and
wires respectively connecting the plurality of first pads and the plurality of second pads,
the second direction is inclined at a prescribed angle with respect to the first direction,
the prescribed angle is greater than 0 degrees and less than 90 degrees.
In addition, a differential transmission wire with a relay board according to an aspect of the present invention includes:
a relay substrate having a plurality of first pads arranged in a first direction, a plurality of second pads arranged in a second direction, and wires connecting the plurality of first pads and the plurality of second pads, respectively; and
a plurality of electric wires for differential transmission,
the plurality of differential transmission wires are connected to the plurality of first pads respectively,
the second direction is inclined at a prescribed angle with respect to the first direction, the prescribed angle being greater than 0 degrees and less than 90 degrees.
Further, a cable with a connector according to an aspect of the present invention includes a connector and a cable,
the connector has:
a relay substrate having a plurality of first pads arranged in a first direction, a plurality of second pads arranged in a second direction, and wires connecting the plurality of first pads and the plurality of second pads, respectively;
a case that accommodates the relay board; and
a plurality of connector terminals arranged in the second direction,
the plurality of second pads are connected to the plurality of connector terminals,
the cable has a plurality of wires for differential transmission, is led out from the housing in a state of being bundled,
the plurality of differential transmission wires are connected to the plurality of first pads respectively,
the second direction is inclined at a prescribed angle with respect to the first direction, the prescribed angle being greater than 0 degrees and smaller than 90 degrees,
the second direction is the same direction as a direction in which the cable is led out from the housing.
Drawings
Fig. 1 is a schematic diagram showing an appearance of an example of a cable with a connector according to an embodiment of the present invention.
Fig. 2 is a front view of the inside of the connector of one end of the cable with connector of fig. 1.
Fig. 3 is a diagram showing the front side of the relay board according to the embodiment of the present invention.
Fig. 4 is a rear view of the inside of the connector of one end of the cable with connector of fig. 1.
Fig. 5 is a diagram illustrating a difference between the cable with a connector according to the embodiment of the present invention and the cable with a connector according to the comparative example.
Detailed Description
[ problems to be solved by the invention ]
In the transmission of high-speed signals, differential transmission using two wires as a pair is applied. However, if the lengths of the two paired electric wires are not aligned, that is, are not equal to each other, stable differential transmission becomes difficult.
The connector portion of the cable-equipped connector of patent documents 1 to 3 has a so-called straight structure in which connector terminals are provided at positions that are linear in the cable longitudinal direction from the connection portion of the cable, and the wiring in the relay substrate is arranged linearly as described above. Therefore, the wirings in the relay substrate can be arranged in equal length.
Patent document 4 describes a right-angled receptacle connector. The right-angled type is also considered in a connector with a cable connected to an electronic device. In a Right-angle cable connector, for example, a connector terminal is provided at a Right angle (Right angle) in the cable length direction from a connection portion of the cable.
However, in order to make the connector with a cable using the relay board right-angled, the wiring of the relay board must be bent by 90 degrees between the lead pad and the connector pad. Therefore, in the rectangular relay substrate, in order to prevent a difference in line length between two wires as a pair for transmitting a differential signal, a wire bent in a serpentine shape called a meander wire is used. Since the area of the relay substrate where the wiring is routed is more redundant than the area where the wiring is simply routed, if the routing wiring is used, the area of the relay substrate increases. In addition, when a plurality of lead pads are arranged at a high density, since a simple wiring does not satisfy the requirement, a large number of routing wirings need to be provided, and the area of the relay board further increases. As described above, if the area of the relay substrate becomes large, the housing of the connector also becomes large.
Further, it is also conceivable to reduce the number of wiring lines to be routed by providing the relay substrate with a plurality of layers and passing the wiring lines to the lower layer through the through holes and the interlayer via holes.
The present invention aims to provide a relay board, an electric wire with the relay board, and a cable with a connector, which can eliminate the difference of the wire length of two paired wires for differential transmission and reduce the dead space in the connector without increasing the area of the relay board as much as possible.
[ Effect of the invention ]
According to the present invention, it is possible to eliminate the difference in the line length of the two wires as a pair for differential transmission and reduce the dead space in the connector without increasing the area of the relay board as much as possible.
(description of embodiments of the invention)
First, embodiments of the present invention will be described.
A relay board according to an embodiment of the present invention,
(1) it has the following components:
a plurality of first pads arranged in a first direction;
a plurality of second pads arranged in a second direction; and
wires respectively connecting the plurality of first pads and the plurality of second pads,
the second direction is inclined at a prescribed angle with respect to the first direction,
the prescribed angle is greater than 0 degrees and less than 90 degrees.
According to the above configuration, the plurality of first pads arranged are arranged to be inclined with respect to the plurality of second pads arranged. Thus, the area in which the routing wiring for absorbing the difference in the length of the two wires as a pair for differential transmission is implemented can be reduced as much as possible without bending the electric wire connected to the first pad as much as possible. Therefore, it is possible to eliminate the difference in the wire length of the two wires as a pair for differential transmission without increasing the area of the relay board as much as possible, and to reduce the dead space in the connector which is generated when the relay board is used for the connector.
(2) The prescribed angle may be greater than or equal to 30 degrees and less than or equal to 60 degrees.
According to the above configuration, it is possible to make the design of the wiring in the relay substrate easier and to make the manufacturing of the relay substrate easier.
Further, in a differential transmission wire with a relay board according to an embodiment of the present invention,
(3) it has the following components:
a relay substrate having a plurality of first pads arranged in a first direction, a plurality of second pads arranged in a second direction, and wires connecting the plurality of first pads and the plurality of second pads, respectively; and
a plurality of electric wires for differential transmission,
the plurality of differential transmission wires are connected to the plurality of first pads respectively,
the second direction is inclined at a prescribed angle with respect to the first direction, the prescribed angle being greater than 0 degrees and less than 90 degrees.
According to the above configuration, the plurality of first pads arranged in the relay board are arranged to be inclined with respect to the plurality of second pads arranged in the relay board. Thus, the area in which the routing wiring for absorbing the difference in the length of the two wires as a pair for differential transmission is implemented can be reduced as much as possible without bending the electric wire connected to the first pad as much as possible. Therefore, it is possible to eliminate the difference in the wire length of the two wires as a pair for differential transmission without increasing the area of the relay board as much as possible, and to reduce the dead space in the connector which is generated when the relay board is used for the connector.
In addition, in the cable with connector according to one embodiment of the present invention,
(4) which has a connector and a cable, and a connector,
the connector has:
a relay substrate having a plurality of first pads arranged in a first direction, a plurality of second pads arranged in a second direction, and wires connecting the plurality of first pads and the plurality of second pads, respectively;
a case that accommodates the relay board; and
a plurality of connector terminals arranged in the second direction,
the plurality of second pads are connected to the plurality of connector terminals,
the cable has a plurality of wires for differential transmission, is led out from the housing in a state of being bundled,
the plurality of differential transmission wires are connected to the plurality of first pads respectively,
the second direction is inclined at a prescribed angle with respect to the first direction, the prescribed angle being greater than 0 degrees and smaller than 90 degrees,
the second direction is the same direction as a direction in which the cable is led out from the housing.
According to the above configuration, the plurality of first pads arranged in the relay board are arranged to be inclined with respect to the plurality of second pads arranged in the relay board. Thus, the area in which the routing wiring for absorbing the difference in the length of the two wires as a pair for differential transmission is implemented can be reduced as much as possible without bending the electric wire connected to the first pad as much as possible. Therefore, the difference in the line length of the two paired wires for differential transmission can be eliminated without increasing the area of the relay board as much as possible, and the dead space in the housing can be reduced. Thus, in the cable with a connector of a so-called right-angled type in which the direction in which the plurality of connector terminals are arranged and the direction in which the cable is led out from the housing are the same, the connector can be downsized.
(details of the embodiment of the present invention)
Specific examples of the relay board, the differential transmission wire with the relay board, and the cable with the connector according to the embodiment of the present invention will be described with reference to the drawings.
The present invention is not limited to these examples, but is defined by the claims, and includes all modifications equivalent to the claims and within the scope thereof.
Fig. 1 is a schematic diagram showing an appearance of an example of a cable with a connector according to an embodiment of the present invention.
As shown in fig. 1, the connector-equipped cable 1 includes a
The
The cable with connector 1 can be used as, for example, the following cable: a cable for connecting devices of fa (factory automation) to each other, or a cable for connecting an electronic device, a mobile terminal, or the like to other devices.
Fig. 2 is a view of the inside of the
As shown in fig. 2, the
The
The coaxial
The binding
The exposed
Fig. 3 is a diagram showing the front side of the relay board according to the present embodiment.
As shown in fig. 3, on a surface 30a of the
On the surface of the
The wire pads 31a to 31f are arranged in a row in a predetermined direction (in this example, the direction indicated by the arrow a) on the surface of the
The inclination angle θ is preferably greater than or equal to 30 degrees and less than or equal to 60 degrees. Specifically, the inclination angle θ is set to, for example, 30 degrees, 45 degrees, 60 degrees, or the like. In this example, 45 degrees is set.
The power supply pad 33 is connected to the back surface of the
In the cable with connector 1, the
As shown in fig. 2 and 3, the
The end of the
As described above, the
In the present embodiment, as shown in fig. 2, a plurality of
In contrast, when the high-speed signal wiring and the low-speed signal transmission wiring are present in a mixed state, it is necessary to make the distance between the two wirings large in order to suppress the electrical interference as described above. In the present embodiment, since the two wirings do not coexist on the same surface of the
When the
For example, when the low-speed signal transmission wires are not used, the differential transmission coaxial wires may be connected to the front and rear surfaces of the
In addition, a pair of coaxial wires of which two wires are a set is used as the differential transmission wire, but the present invention is not limited to this example. For example, as the differential transmission electric wire, a twisted pair electric wire in which 2 insulating electric wires are twisted into a pair and the periphery thereof is shielded by a shield layer, or the like may be used.
The
However, the
Next, a difference between the cable with a connector according to the present embodiment and the cable with a connector according to a comparative example will be described with reference to fig. 5.
Fig. 5 shows the connector-equipped cable 1 according to the present embodiment on the upper stage, the connector-equipped
The connector-equipped
In the case of the connector-equipped
In addition, the connector-equipped
Therefore, for example, the
In contrast, according to the cable with connector 1 of the present embodiment, the arrangement direction of the conductor pads 31a to 31f in the
In the
In the
While the present invention has been described in detail and with reference to the specific embodiments, it will be apparent to one skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope thereof. The number, position, shape, and the like of the components described above are not limited to those of the above embodiments, and may be changed to those suitable for carrying out the present invention.
Description of the reference numerals
1: cable with connector
2: cable with a flexible connection
3A, 3B: connector with a locking member
10: differential transmission wire with relay substrate
20a to 20 f: coaxial cable (an example of a differential transmission cable)
21a, 21 b: insulated wire
22: cable sheath
23: binding part
24: center conductor
25: insulator
26: external conductor
27: conductor
30: relay board
30 a: surface of
30 b: back side of the panel
31a to 31 f: wire bonding pad (one example of the first bonding pad)
32a to 32 f: connector pad (one example of the second pad)
33: power supply pad
34: grounding pad
35a to 35 f: wiring harness
40. 41: insulated wire
50: shell body
51a, 51 b: connecting part
52: connector terminal
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