阅读说明：本技术 电路基板和基板用连接器的连接结构及基板用连接器 (Connection structure of circuit board and connector for substrate ) 是由 宫村哲矢 田端正明 于 2018-06-15 设计创作，主要内容包括：使得电路基板的种类数不增加。屏蔽用基板用连接器(20)具备屏蔽用端子保持构件(21)和左右一对端子零件(31),非屏蔽用基板用连接器(35)具备非屏蔽用端子保持构件(36)和左右一对端子零件(31)。屏蔽用基板用连接器(20)中的一对端子零件(31)的突片状连接部(32)的间距(Pw)比基板连接部(34)的间距(Po)宽,非屏蔽用基板用连接器(35)中的一对端子零件(31)的突片状连接部(32)的间距(Pn)比基板连接部(34)的间距(Po)窄,屏蔽用的基板连接部(34)的间距(Po)和非屏蔽用的基板连接部(34)的间距(Po)大致相同。(So that the number of kinds of circuit substrates is not increased. A connector (20) for a shield substrate is provided with a terminal holding member (21) for a shield and a pair of left and right terminal parts (31), and a connector (35) for a non-shield substrate is provided with a terminal holding member (36) for a non-shield and a pair of left and right terminal parts (31). A pitch Pw of protruding-piece-shaped connection portions 32 of a pair of terminal parts 31 in a connector 20 for a shielding substrate is wider than a pitch Po of substrate connection portions 34, a pitch Pn of protruding-piece-shaped connection portions 32 of a pair of terminal parts 31 in a connector 35 for a non-shielding substrate is narrower than the pitch Po of the substrate connection portions 34, and the pitch Po of the substrate connection portions 34 for shielding is substantially the same as the pitch Po of the substrate connection portions 34 for non-shielding.)

1. A connection structure of a circuit board and a connector for a substrate, the connection structure comprising:

a circuit substrate; and

at least one of a shielded substrate connector and a non-shielded substrate connector that can be selectively mounted on the circuit board,

the connector for a shield substrate is configured to include: a shielding terminal holding member which can be attached to an upper surface of the circuit board; and a pair of left and right shield terminal components having a shield projecting piece-shaped connecting portion held in a penetrating state by the shield terminal holding member and a shield substrate connecting portion connected to a land of the circuit board outside the shield terminal holding member,

the non-shielding substrate connector is provided with: a non-shielding terminal holding member which can be mounted on an upper surface of the circuit board; and a pair of left and right non-shielding terminal components having a non-shielding tab-shaped connecting portion held in a penetrating state by the non-shielding terminal holding member and a non-shielding substrate connecting portion connected to the land of the circuit board outside the non-shielding terminal holding member,

the distance between the shield projecting piece-shaped connecting parts of the pair of shield terminal parts is wider than the distance between the shield substrate connecting parts,

wherein a pitch of the non-shielding tab-shaped connecting portions of the pair of non-shielding terminal components is narrower than a pitch of the non-shielding substrate connecting portions,

the pitch of the shielding substrate connection portions and the pitch of the non-shielding substrate connection portions are substantially the same.

2. The connection structure between the circuit board and the board connector according to claim 1, wherein when the pitch of the shield protruding piece-shaped connection portions is Pw, the pitch of the non-shield protruding piece-shaped connection portions is Pn, and the pitch of the shield board connection portions and the pitch of the non-shield board connection portions are Po, Po is Pw/2+ Pn/2.

3. The structure for connecting a circuit board and a connector for a board according to claim 1 or 2, wherein the terminal component for shielding has a leg portion for shielding connecting a rear end of the tab-shaped connecting portion for shielding and the substrate connecting portion for shielding,

the shield leg portion is disposed concentrically with respect to the shield tab-shaped connecting portion in the left-right direction.

4. The connection structure between a circuit board and a substrate connector according to any one of claims 1 to 3, wherein the non-shielding terminal component has a non-shielding leg portion for connecting a rear end of the non-shielding tab-shaped connection portion and the non-shielding substrate connection portion,

the non-shielding leg portion is disposed concentrically with respect to the non-shielding tab-shaped connecting portion in the left-right direction.

5. A connector for a substrate, comprising:

a terminal holding member which can be mounted on the upper surface of the circuit board; and

a pair of left and right terminal fittings having a protruding-piece-shaped connecting portion and a substrate connecting portion, the protruding-piece-shaped connecting portion being held in a penetrating state by the terminal holding member, the substrate connecting portion being connected to a land of the circuit board outside the terminal holding member,

the pitch of the tab-shaped connecting portions of the pair of terminal parts is different from the pitch of the substrate connecting portions.

6. The connector for a substrate according to claim 5, wherein the terminal fitting has a leg portion connecting a rear end of the tab-shaped connecting portion and the substrate connecting portion, and the leg portion is arranged concentrically with respect to the tab-shaped connecting portion in a left-right direction.

Technical Field

The present invention relates to a connection structure of a circuit board and a connector for a board, and a connector for a board.

Background

Patent document 1 discloses a substrate connector mounted on a circuit board. The substrate connector includes a terminal holding member fixed to a circuit substrate and a plurality of terminal components mounted to the terminal holding member in a penetrating state. The terminal fitting has: a harness-side connecting portion that is housed in the cover portion of the terminal holding member and is connected to the harness; and a substrate connection portion exposed at the rear of the terminal holding member and connected to a circuit of the circuit substrate by soldering.

Disclosure of Invention

Problems to be solved by the invention

The plurality of terminal parts of the connector for a substrate are arranged at a predetermined pitch in the left-right direction. The appropriate arrangement pitch of the terminal parts differs between a shielded substrate connector in which the terminal parts are surrounded by the outer conductor and a non-shielded substrate connector in which the terminal parts are connected to the twisted pair. Therefore, the interval between the pads connected to the substrate connecting portion in the conductor pattern of the circuit board is also different between the circuit board for shielding and the circuit board for non-shielding. Therefore, in order to correspond to the circuit board for shielding and the circuit board for non-shielding, two kinds of circuit boards having different pad intervals need to be prepared.

The present invention has been made in view of the above circumstances, and an object of the present invention is to prevent an increase in the number of types of circuit boards.

Means for solving the problems

The connection structure of the circuit board and the board connector according to claim 1 is characterized by comprising:

a circuit substrate; and

at least one of a shielded substrate connector and a non-shielded substrate connector that can be selectively mounted on the circuit board,

the connector for a shield substrate is configured to include: a shielding terminal holding member which can be attached to an upper surface of the circuit board; and a pair of left and right shield terminal components having a shield projecting piece-shaped connecting portion held in a penetrating state by the shield terminal holding member and a shield substrate connecting portion connected to a land of the circuit board outside the shield terminal holding member,

the non-shielding substrate connector is provided with: a non-shielding terminal holding member which can be mounted on an upper surface of the circuit board; and a pair of left and right non-shielding terminal components having a non-shielding tab-shaped connecting portion held in a penetrating state by the non-shielding terminal holding member and a non-shielding substrate connecting portion connected to the land of the circuit board outside the non-shielding terminal holding member,

the distance between the shield projecting piece-shaped connecting parts of the pair of shield terminal parts is wider than the distance between the shield substrate connecting parts,

wherein a pitch of the non-shielding tab-shaped connecting portions of the pair of non-shielding terminal components is narrower than a pitch of the non-shielding substrate connecting portions,

the pitch of the shielding substrate connection portions and the pitch of the non-shielding substrate connection portions are substantially the same.

The pitch of the shield projecting piece-shaped connecting portions is a distance between centers of a pair of shield projecting piece-shaped connecting portions adjacent to each other on the left and right sides when the centers of the shield projecting piece-shaped connecting portions in the width direction (the left and right direction parallel to the arrangement direction of the pair of shield projecting piece-shaped connecting portions) are defined. The pitch of the non-shielding projecting-piece-shaped connecting portions is a distance between centers of a pair of non-shielding projecting-piece-shaped connecting portions adjacent to each other on the left and right sides when the center of each non-shielding projecting-piece-shaped connecting portion in the width direction (the left and right direction parallel to the arrangement direction of the pair of non-shielding projecting-piece-shaped connecting portions) is defined. The pitch of the shield substrate connection portions is a distance between centers of a pair of shield substrate connection portions adjacent to each other in the left-right direction when the center of each shield substrate connection portion in the width direction (the left-right direction parallel to the arrangement direction of the pair of shield substrate connection portions) is defined. The pitch of the non-shielding substrate connecting portions is a distance between centers of a pair of non-shielding substrate connecting portions adjacent to each other in the left-right direction when the center of each non-shielding substrate connecting portion in the width direction (the left-right direction parallel to the arrangement direction of the pair of non-shielding substrate connecting portions) is defined.

A connector for a substrate according to claim 2 is characterized in that the connector for a substrate includes:

a terminal holding member which can be mounted on the upper surface of the circuit board; and

a pair of left and right terminal fittings having a protruding-piece-shaped connecting portion and a substrate connecting portion, the protruding-piece-shaped connecting portion being held in a penetrating state by the terminal holding member, the substrate connecting portion being connected to a land of the circuit board outside the terminal holding member,

the pitch of the tab-shaped connecting portions of the pair of terminal parts is different from the pitch of the substrate connecting portions.

Effects of the invention

According to the aspect of the invention 1, since the pitch of the shield substrate connecting portion and the pitch of the non-shield substrate connecting portion are substantially the same size, the pitch of the pads of the shield circuit substrate and the pitch of the pads of the non-shield circuit substrate can be set to the same pitch. Thus, the circuit board can be shared by the shielded board connector and the unshielded board connector.

According to the invention of claim 2, in the shielded connector for a substrate, the pair of terminal parts are mounted on the terminal holding member such that the pitch of the tab-shaped connecting portions is larger than the pitch of the substrate connecting portions, and in the unshielded connector for a substrate, the pair of terminal parts are mounted on the terminal holding member such that the pitch of the tab-shaped connecting portions is smaller than the pitch of the substrate connecting portions. Here, when the pitch of the substrate connection portions for shielding and the pitch of the substrate connection portions for non-shielding are made substantially the same size, the circuit substrate can be shared by the substrate connector for shielding and the substrate connector for non-shielding.

Drawings

Fig. 1 is a front view showing a state in which a connector for a shield substrate is mounted on a circuit board in example 1.

Fig. 2 is a rear view showing a state in which the connector for a shield substrate is mounted on a circuit board.

Fig. 3 is a plan view showing a state where the connector for a shield substrate is mounted on a circuit board.

Fig. 4 is a cross-sectional view taken along line X-X of fig. 1.

Fig. 5 is a front view showing a state where the connector for a non-shielding substrate is mounted on a circuit board.

Fig. 6 is a rear view showing a state where the connector for a non-shielding substrate is mounted on the circuit substrate.

Fig. 7 is a plan view showing a state where the connector for a non-shielding substrate is mounted on a circuit board.

Fig. 8 is a cross-sectional view taken along line Y-Y of fig. 5.

Fig. 9 is a rear view showing a state in which the connector for a shield substrate is mounted on a circuit board in example 2.

Fig. 10 is a plan view showing a state where the connector for a shield substrate is mounted on a circuit board.

Fig. 11 is a rear view showing a state where the connector for a non-shielding substrate is mounted on a circuit board.

Fig. 12 is a plan view showing a state where the connector for a non-shielding substrate is mounted on a circuit board.

Fig. 13 is a rear view showing a state in which the connector for a shield substrate is mounted on a circuit board in example 3.

Fig. 14 is a plan view showing a state where the connector for a shield substrate is mounted on a circuit board.

Fig. 15 is a rear view showing a state where the connector for a non-shielding substrate is mounted on a circuit board.

Fig. 16 is a plan view showing a state where the connector for a non-shielding substrate is mounted on a circuit board.

Detailed Description

In the aspect of the invention 1, when the pitch of the shield projecting piece-shaped connecting portions is Pw, the pitch of the non-shield projecting piece-shaped connecting portions is Pn, and the pitch of the shield substrate connecting portions and the pitch of the non-shield substrate connecting portions are Po, Po is Pw/2+ Pn/2. According to this configuration, since the difference in size between the pitch Pw of the projecting-piece-shaped connecting portions for shielding and the pitch Po of the substrate connecting portions for shielding and the difference in size between the pitch Pn of the non-projecting-piece-shaped connecting portions for non-shielding and the pitch Po of the substrate connecting portions for non-shielding are the same, the pair of terminal parts for shielding and the pair of terminal parts for non-shielding can be shared.

In the invention of claim 1, the terminal fitting for shielding may include a leg portion for shielding connecting a rear end of the connecting portion in the form of the protruding piece for shielding and the connecting portion of the substrate for shielding, and the leg portion for shielding may be disposed concentrically with respect to the connecting portion in the form of the protruding piece for shielding in the left-right direction. According to this configuration, high communication performance due to the distance between the pair of left and right shielding terminal fittings is maintained in the vicinity of the circuit board.

In the invention of claim 1, the non-shielding terminal fitting may include a non-shielding leg portion for connecting a rear end of the non-shielding tab-shaped connecting portion and the non-shielding substrate connecting portion, and the non-shielding leg portion may be disposed concentrically with respect to the non-shielding tab-shaped connecting portion in a lateral direction. According to this configuration, high communication performance due to the distance between the pair of left and right non-shielding terminal fittings is maintained in the vicinity of the circuit board.

In the invention of claim 2, the terminal component may include a leg portion for connecting a rear end of the tab-shaped connecting portion and the board connecting portion, and the leg portion may be disposed concentrically with respect to the tab-shaped connecting portion in the left-right direction. According to this configuration, high communication performance due to the space between the pair of left and right terminal fittings is maintained in the vicinity of the circuit board.

< example 1>

Hereinafter, embodiment 1 embodying the present invention will be described with reference to fig. 1 to 8. In the following description, the front-rear direction is defined as the upward direction in fig. 3 and 7 and the left direction in fig. 4 and 8. The vertical direction is defined as upward and downward as the directions shown in fig. 1, 2, 4, 5, 6, and 8. The left-right direction is defined as the left and right directions as shown in fig. 2, 3, 6, and 7.

The connection structure of embodiment 1 is used for a high-speed communication circuit of the internet (registered trademark). The connection structure includes a circuit board 10 used for both shielding and non-shielding, a shielding board connector 20 (a board connector according to the claims), and a non-shielding board connector 35 (a board connector according to the claims). Only one of the shielded substrate connector 20 and the non-shielded substrate connector 35 is mounted on the circuit board 10.

< Circuit Board 10>

The circuit board 10 is disposed in a horizontal direction, and a conductor pattern (not shown) is formed on the upper surface of the circuit board 10 by printing. As shown in fig. 3, a pair of pads 11 that constitute a conductor pattern and are bilaterally symmetrical are disposed in a region of the circuit board 10 rearward of the front end edge. The pair of pads 11 has a substantially rectangular shape elongated in the front-rear direction in plan view. The pair of pads 11 are arranged at a predetermined pitch Po in the left-right direction. The pitch Po is a distance between centers of a pair of pads 11 adjacent to each other in the left-right direction when the center of each pad 11 in the width direction (the left-right direction parallel to the arrangement direction of the pair of pads 11) is defined.

The region of the upper surface of the circuit board 10 forward of the pair of lands 11 serves as a fixing space for disposing the shielded board connector 20 or the unshielded board connector 35. The conductor pattern of the circuit board 10 and the electronic component (not shown) mounted on the circuit board 10 are shared by the shielded board connector 20 and the unshielded board connector 35. The circuit board 10 is housed in an electromagnetically shielded housing (not shown).

< connector for shield substrate 20>

As shown in fig. 1 to 4, the connector 20 for a shield substrate includes a pair of terminal fittings 31 (a shield terminal fitting and a non-shield terminal fitting according to claims) which are bilaterally symmetrical and a terminal holding member 21 for a shield. The shield terminal holding member 21 is functionally configured to include: a wall-shaped shield terminal penetration portion 22 that is substantially vertical to the upper surface of the circuit board 10; and a shield cover 23 extending forward in a square tube shape from an outer peripheral edge of the shield terminal insertion portion 22. The shield terminal holding member 21 is configured by assembling a synthetic resin insulating housing 24, an outer conductor 28, and a dielectric body 29 in terms of component structure.

The insulating housing 24 is a single member having a shielding wall-shaped body portion 25 constituting the shielding terminal insertion portion 22 and a shielding cover portion 23 protruding forward from an outer peripheral edge of the shielding wall-shaped body portion 25. The shielding wall-shaped body portion 25 is formed with a mounting hole 26 penetrating in the front-rear direction. The shield terminal 27 is mounted in the mounting hole 26 in a penetrating state.

The shield terminal 27 is configured by assembling an outer conductor 28 in a square tube shape bent into a substantially L shape in a side view, a dielectric 29 housed in a rear end portion inside the outer conductor 28, and a pair of left and right terminal fittings 31. A pair of left and right shield press-fitting holes 30 penetrating in the front-rear direction are formed in the dielectric body 29, and a pair of terminal fittings 31 are individually inserted into the respective shield press-fitting holes 30 in a press-fitted state.

The rear end portions of the outer conductor 28 and the shield terminal 27 are fitted into the mounting hole 26. In the shield terminal 27, the region on the distal end side of the outer conductor 28 and the region on the distal end side of the terminal fitting 31 (the region on the distal end side of the projecting-piece-shaped connecting portion 32) project forward from the wall-shaped shield body 25 and are accommodated in the shield cover 23. The shield terminal insertion portion 22 is configured to include a shield wall-shaped body portion 25 and a dielectric body 29. The pair of terminal fittings 31 are held by the shield terminal holding member 21 in a state of being inserted through the shield terminal insertion portion 22.

As shown in fig. 2 and 3, the pair of terminal fittings 31 have a bilaterally symmetrical shape. Each terminal fitting 31 is a terminal fitting formed into a predetermined shape by bending a single elongated metal material. As shown in fig. 4, the terminal component 31 includes a tab-shaped connecting portion 32 (a shielding tab-shaped connecting portion and a non-shielding tab-shaped connecting portion according to the claims), a leg portion 33 (a shielding leg portion and a non-shielding leg portion according to the claims), and a substrate connecting portion 34 (a shielding substrate connecting portion and a non-shielding substrate connecting portion according to the claims).

The tab-shaped connection portion 32 extends linearly in the front-rear direction (direction parallel to the upper surface of the circuit board 10), and penetrates the shield press-fitting hole 30 of the shield terminal insertion portion 22 in the front-rear direction. The tip end side region of the tab-shaped connection portion 32 projects forward of the shield terminal insertion portion 22 and is accommodated in the shield cover portion 23. The rear end of the tab-like connection portion 32 protrudes rearward of the dielectric body 29 constituting the shield terminal insertion portion 22 and is covered with the rear end of the outer conductor 28.

The leg portion 33 linearly extends downward (in a direction approaching the circuit board 10) substantially perpendicularly from the rear end of the tab-shaped connecting portion 32, and is covered by the rear end portion of the outer conductor 28. The board connection portion 34 linearly extends from the lower end of the leg portion 33 so as to be substantially parallel to the upper surface of the circuit board 10. The width dimension (dimension in the left-right direction) of the substrate connection portion 34 is smaller than the width dimension of the pad 11. As shown in fig. 3, the pair of substrate connection portions 34 is disposed so as to overlap the pair of lands 11 in a plan view, and each substrate connection portion 34 is disposed at a central position of the land 11 in the left-right direction. The board connection portion 34 is conductively bonded to the upper surface of the pad 11 by reflow soldering.

The pair of terminal fittings 31 are arranged in a left-right symmetrical manner in a state of being attached to the shielding terminal holding member 21. The pair of terminal fittings 31 in the state of being mounted on the shielding terminal holding member 21 have a dimension in which the pitch Pw in the left-right direction between the tab-shaped connection portions 32 is larger than the pitch Po in the left-right direction between the substrate connection portions 34. The pitch Pw is a distance between the centers of a pair of tab-shaped connection portions 32 adjacent to each other on the left and right sides when the center of each tab-shaped connection portion 32 in the width direction (the left and right direction parallel to the arrangement direction of the pair of tab-shaped connection portions 32) is defined. The pitch Po is a distance between centers of the pair of substrate connection portions 34 adjacent to each other in the left-right direction when the center of each substrate connection portion 34 in the width direction (the left-right direction parallel to the arrangement direction of the pair of substrate connection portions 34) is defined.

As shown in fig. 2 and 3, the projecting piece-shaped connecting portion 32 and the leg portion 33 are concentrically arranged with their centers aligned in the width direction (left-right direction) in a plan view and a rear view. The widthwise center of the substrate connecting portion 34 is off-center with respect to either the tab-shaped connecting portion 32 or the leg portion 33. That is, in the terminal part 31 positioned on the left side, the protruding piece-shaped connection portion 32 and the leg portion 33 are eccentric to the left side with respect to the substrate connection portion 34, and in the terminal part 31 positioned on the right side, the protruding piece-shaped connection portion 32 and the leg portion 33 are eccentric to the right side with respect to the substrate connection portion 34.

A shield connector (not shown) is fitted to the shield substrate connector 20, and the shield connector is mounted to a terminal portion of a shield harness (not shown). The shielded wire harness is formed in a form in which a pair of unshielded wires are surrounded by a cylindrical shielding member such as a braided wire, and a female terminal component is joined to each unshielded wire. The pair of female terminal parts are housed in the shielded connector and surrounded by a shield shell constituting the shielded connector. When the shield connector is fitted to the shield cover portion 23 of the shield substrate connector 20, the pair of female terminal components are connected to the pair of tab-shaped connecting portions 32 separately, and the shield shell is connected to the outer conductor 28.

As described above, the pitch Pw of the two left and right tab-shaped connection portions 32 is larger than the pitch Po of the substrate connection portion 34, but this is for matching the interval between the two left and right tab-shaped connection portions 32 with the distance between the tab-shaped connection portion 32 and the outer conductor 28 in the shield terminal 27. The distance between the tab-like connection portion 32 and the outer conductor 28 is approximately the same size as the distance between the female terminal fitting and the shield shell in the shield connector. The distance between the protruding piece-shaped connecting portion 32 and the outer conductor 28 is set to be optimal in consideration of the shielding function.

< non-shielding substrate connector 35>

As shown in fig. 5 to 8, the non-shielding substrate connector 35 includes a non-shielding terminal holding member 36 and a pair of terminal parts 31 which are bilaterally symmetrical. The pair of terminal fittings 31 are terminal fittings in which the same components as the pair of terminal fittings 31 constituting the shield substrate connector 20 are replaced with left and right opposite positions. The non-shielding terminal holding member 36 is configured to include, in its overall shape: a wall-shaped non-shielding terminal insertion portion 37 that is substantially vertical to the upper surface of the circuit board 10; and a non-shielding cover portion 38 extending forward in a square tube shape from an outer peripheral edge of the non-shielding terminal insertion portion 37. The non-shielding terminal holding member 36 is formed of a connector housing 39 made of synthetic resin.

The connector housing 39 is a single member having a non-shielding wall-shaped body portion 40 constituting the non-shielding terminal insertion portion 37 and a non-shielding cover portion 38 protruding forward from an outer peripheral edge of the non-shielding wall-shaped body portion 40. A pair of left and right non-shielding press-fitting holes 41 that penetrate in the front-rear direction are formed in the non-shielding wall-shaped main body portion 40. The pair of terminal fittings 31 are held by the non-shielding terminal holding member 36 in a state of being individually inserted into the non-shielding press-fitting holes 41 in a press-fitting state.

As shown in fig. 6 and 7, the pair of terminal fittings 31 in the non-shielding substrate connector 35 are also in a bilaterally symmetrical shape, as in the shielding substrate connector 20. The tab-shaped connection portion 32 extends linearly in the front-rear direction (direction parallel to the upper surface of the circuit board 10), and penetrates the non-shielding press-fitting hole 41 of the non-shielding terminal insertion portion 37 in the front-rear direction. The tip end side region of the tab-shaped connecting portion 32 projects forward of the non-shielding terminal insertion portion 37 and is accommodated in the non-shielding cover portion 38. The rear end of the tab-shaped connection portion 32 protrudes rearward of the non-shielding terminal insertion portion 37.

The leg portion 33 linearly extends downward (in a direction approaching the circuit board 10) substantially vertically from the rear end of the tab-shaped connecting portion 32. The board connection portion 34 linearly extends from the lower end of the leg portion 33 so as to be substantially parallel to the upper surface of the circuit board 10. As shown in fig. 7, the pair of substrate connection portions 34 is disposed so as to overlap the pair of lands 11 in a plan view, and each substrate connection portion 34 is disposed at a central position of the land 11 in the left-right direction. The board connection portion 34 is conductively bonded to the upper surface of the pad 11 by reflow soldering.

The pair of terminal fittings 31 are arranged in a left-right symmetrical manner in a state of being attached to the non-shielding terminal holding member 36. In the pair of terminal fittings 31 mounted on the non-shielding terminal holding member 36, the pitch Pn in the left-right direction between the protruding-piece-shaped connecting portions 32 is smaller than the pitch Po in the left-right direction between the substrate connecting portions 34. The pitch Pn is a distance between the centers of a pair of tab-shaped connection portions 32 adjacent to each other on the left and right sides when the center of each tab-shaped connection portion 32 in the width direction (the left and right direction parallel to the arrangement direction of the pair of tab-shaped connection portions 32) is defined. Therefore, in the non-shielding board connector 35, in contrast to the shielding board connector 20, the protruding piece-shaped connection portion 32 and the leg portion 33 of the terminal part 31 positioned on the left side are eccentric to the right with respect to the board connection portion 34, and the protruding piece-shaped connection portion 32 and the leg portion 33 of the terminal part 31 positioned on the right side are eccentric to the left with respect to the board connection portion 34.

The pitch Po in the left-right direction between the substrate connection portions 34 in the non-shielding substrate connector 35 is the same size as the pitch Po in the left-right direction between the substrate connection portions 34 in the shielding substrate connector 20. Therefore, the pitch Pn of the projecting-piece-shaped connecting portions 32 in the non-shielding-board connector 35 is narrower than the pitch Pw of the projecting-piece-shaped connecting portions 32 in the shielding-board connector 20. The pitch Po of the board connection portions 34, the pitch Pw of the protruding-piece-shaped connection portions 32 in the shielded board connector 20, and the pitch Pn of the protruding-piece-shaped connection portions 32 in the unshielded board connector 35 are in a dimensional relationship of Po to Pw/2+ Pn/2.

By this dimensional relationship, the pair of terminal parts 31 can be shared by both the shielded substrate connector 20 and the non-shielded substrate connector 35, and the positional relationship of the pair of lands 11 of the circuit board 10 can be shared by the shielded substrate connector 20 and the non-shielded substrate connector 35. Thus, it is possible to correspond to both the shielded board connector 20 and the unshielded board connector 35 with only two types of terminal parts 31 and one type of circuit board 10.

A non-shielded connector (not shown) is fitted to the non-shielded substrate connector 35, and the non-shielded connector is attached to the end of a twisted pair (not shown). The twisted pair is formed by twisting a pair of unshielded wires at a predetermined pitch into a spiral shape to form a single cable, and a female terminal component is joined to each unshielded wire. A pair of female terminal parts are received in the non-shielded connector. When the non-shielded connector is fitted into the non-shielding hood portion 38 of the non-shielding substrate connector 35, the pair of female terminal parts are individually connected to the pair of tab-shaped connecting portions 32.

< action and Effect of example 1>

The connection structure of example 1 includes a circuit board 10, a connector 20 for a shield substrate, and a connector 35 for a non-shield substrate, and either one of the connector 20 for a shield substrate and the connector 35 for a non-shield substrate is mounted on the circuit board 10 according to the application.

The connector 20 for a shield substrate includes: a shielding terminal holding member 21 which can be mounted on the upper surface of the circuit board 10; and a pair of left and right shielding terminal fittings 31 held by the shielding terminal holding member 21. The pair of terminal fittings 31 has: a shield tab-shaped connecting portion 32 that is held in a penetrating state by the shield terminal holding member 21; and a substrate connection portion 34 for shielding, which is connected to the pad 11 of the circuit substrate 10 outside the terminal holding member 21 for shielding.

The non-shielding substrate connector 35 includes: a non-shielding terminal holding member 36 which can be mounted on the upper surface of the circuit board 10; and a pair of left and right non-shielding terminal fittings 31 held by the non-shielding terminal holding members 36. The pair of terminal fittings 31 are the same members as the terminal fittings 31 for shielding, and include: a non-shielding tab-shaped connecting portion 32 held in a penetrating state by a non-shielding terminal holding member 36; and a non-shielding substrate connection portion 34 connected to the land 11 of the circuit substrate 10 outside the non-shielding terminal holding member 36.

The pitch of the projecting-piece-shaped connecting portions 32 of the pair of terminal parts 31 mounted on the shielded board connector 20 is wider than the pitch of the board connecting portions 34, whereas the pitch of the projecting-piece-shaped connecting portions 32 of the pair of terminal parts 31 mounted on the unshielded board connector 35 is narrower than the pitch of the unshielded board connecting portions 34. On the other hand, the pitch of the substrate connection portions 34 in the shielded substrate connector 20 and the pitch of the substrate connection portions 34 in the non-shielded device are substantially the same size.

According to this configuration, since the pitch of the substrate connection portions 34 in the shielded substrate connector 20 and the pitch of the substrate connection portions 34 in the non-shielded substrate connector 35 are substantially the same size, the pitch of the pads 11 of the shielded circuit board 10 and the pitch of the pads 11 of the non-shielded circuit board 10 can be set to the same pitch. This enables the circuit board 10 for shielding and the circuit board 10 for non-shielding to be shared.

When the pitch of the projecting-piece-shaped connecting portions 32 in the shielded board connector 20 is Pw, the pitch of the projecting-piece-shaped connecting portions 32 in the non-shielded board connector 35 is Pn, and the pitch of the board connecting portions 34 in the shielded board connector 20 and the pitch of the board connecting portions 34 in the non-shielded board connector 35 are Po, Po is equal to Pw/2+ Pn/2. According to this configuration, since the difference in size between the pitch Pw of the projecting-piece-shaped connecting portions 32 and the pitch Po of the substrate connecting portions 34 in the shielded substrate connector 20 and the difference in size between the pitch Pn of the projecting-piece-shaped connecting portions 32 and the pitch Po of the substrate connecting portions 34 in the unshielded substrate connector 35 are the same, the pair of terminal components 31 can be shared between the shielded substrate connector 20 and the unshielded substrate connector 35.

The terminal component 31 of the shield substrate connector 20 has a leg portion 33 for connecting the rear end of the tab-shaped connection portion 32 and the substrate connection portion 34, and the leg portion 33 is disposed concentrically with the tab-shaped connection portion 32 in the left-right direction. With this configuration, high communication performance is maintained in the vicinity of the circuit board 10 by appropriately setting the interval between the pair of left and right terminal fittings 31. Similarly, in the non-shielding board connector 35, the terminal fitting 31 has the leg portion 33 connecting the rear end of the tab-shaped connecting portion 32 and the board connecting portion 34, and the leg portion 33 is disposed concentrically with respect to the tab-shaped connecting portion 32 in the left-right direction. Therefore, in the non-shielding substrate connector 35, high communication performance due to the gap between the pair of left and right terminal fittings 31 is maintained in the vicinity of the circuit substrate 10.

< example 2>

Next, embodiment 2 embodying the present invention will be described with reference to fig. 9 to 12. The connection structure of embodiment 2 is a connection structure in which a pair of bilaterally symmetrical terminal fittings 43 mounted on a connector 42 for a shield substrate and a connector 47 for a non-shield substrate are configured differently from embodiment 1. The other structures are the same as those of embodiment 1, and therefore the same reference numerals are given to the same structures, and the description of the structures, the operations, and the effects is omitted.

A pair of left and right terminal fittings 43 (a shielding terminal fitting and a non-shielding terminal fitting described in claims) of the shielding substrate connector 42 are held by the shielding terminal holding member 21 in a state of being inserted through the shielding terminal insertion portion 22. As shown in fig. 9 and 10, the pair of terminal fittings 43 has a bilaterally symmetrical shape. Each terminal fitting 43 is a terminal fitting formed into a predetermined shape by bending a single elongated metal material. The terminal component 43 includes a tab-shaped connecting portion 44 (a shielding tab-shaped connecting portion and a non-shielding tab-shaped connecting portion according to the claims), a leg portion 45 (a shielding leg portion and a non-shielding leg portion according to the claims), and a substrate connecting portion 46 (a shielding substrate connecting portion and a non-shielding substrate connecting portion according to the claims).

The protruding piece-shaped connecting portion 44 extends linearly in the front-rear direction (direction parallel to the upper surface of the circuit board 10), and penetrates the shield press-fitting hole 30 of the shield terminal insertion portion 22 in the front-rear direction. The distal end side region of the projecting-piece-shaped connecting portion 44 projects forward of the shielding terminal insertion portion 22 and is accommodated in the shielding cover portion 23. The rear end of the tab-shaped connecting portion 44 protrudes rearward of the dielectric body (not shown) constituting the shield terminal insertion portion 22 and is covered by the rear end of the outer conductor 28.

The leg portion 45 extends substantially vertically downward (in a direction approaching the circuit board 10) from the rear end of the tab-shaped connection portion 44, and is covered by the rear end of the outer conductor. The rear view shape of the leg portion 45 is bent so that an upper end side region extending in the substantially vertical direction and a lower end side region extending in the substantially vertical direction are shifted to the left and right. The board connection portion 46 linearly extends from the lower end of the leg portion 45 so as to be substantially parallel to the upper surface of the circuit board 10. The width dimension (dimension in the left-right direction) of the substrate connection portion 46 is smaller than the width dimension of the pad 11. As shown in fig. 10, the pair of substrate connection portions 46 is disposed so as to overlap the pair of lands 11 in a plan view, and each substrate connection portion 46 is disposed at a central position of the land 11 in the left-right direction. The board connection portion 46 is conductively bonded to the upper surface of the pad 11 by reflow soldering.

The left-right direction pitch Pw of the protruding-piece-shaped connection portions 44 of the pair of terminal fittings 43 is larger than the left-right direction pitch Po of the substrate connection portions 46. The pitch Pw is a distance between the centers of a pair of tab-shaped connection portions 44 adjacent to each other on the left and right sides when the center of each tab-shaped connection portion 44 in the width direction (the left and right direction parallel to the arrangement direction of two tab-shaped connection portions 44) is defined. The pitch Po is a distance between centers of a pair of substrate connection portions 46 adjacent to each other in the left-right direction when the center of each substrate connection portion 46 in the width direction (the left-right direction parallel to the arrangement direction of the pair of substrate connection portions 46) is defined.

As shown in fig. 9 and 10, the projecting piece-shaped connecting portion 44 and the upper end side region of the leg portion 45 are concentrically arranged so that the centers thereof in the width direction (left-right direction) coincide with each other in a plan view and a rear view. The lower end side region of the leg portion 45 and the substrate connecting portion 46 are also in a concentric positional relationship with the centers in the width direction (left-right direction) being aligned. The upper end side region of the leg portion 45 and the lower end side region of the leg portion 45 are in a positional relationship eccentric to either the left or the right. In the terminal part 43 located on the left side, the upper end side regions of the tab-shaped connecting portion 44 and the leg portion 45 are eccentric to the left with respect to the lower end side regions of the leg portion 45 and the substrate connecting portion 46, and in the terminal part 43 located on the right side, the upper end side regions of the tab-shaped connecting portion 44 and the leg portion 45 are eccentric to the right with respect to the lower end side regions of the leg portion 45 and the substrate connecting portion 46.

The pair of terminal fittings 43 of the non-shielding substrate connector 47 are held by the non-shielding terminal holding member 36 in a state of being individually inserted into the non-shielding press-fitting holes 41 in a press-fitted state. As shown in fig. 11 and 12, the pair of terminal fittings 43 in the non-shielding substrate connector 47 are also in a bilaterally symmetrical shape, as in the shielding substrate connector 42. The projecting-piece-shaped connecting portion 44 extends linearly in the front-rear direction (direction parallel to the upper surface of the circuit board 10), and penetrates the non-shielding press-fitting hole 41 of the non-shielding terminal insertion portion 37 in the front-rear direction. The tip end side region of the projecting-piece-shaped connecting portion 44 projects forward of the non-shielding terminal insertion portion 37 and is accommodated in the non-shielding cover portion 38. The rear end of the tab-shaped connecting portion 44 protrudes rearward of the non-shielding terminal insertion portion 37.

The leg portion 45 linearly extends downward (in a direction approaching the circuit board 10) substantially vertically from the rear end of the tab-shaped connecting portion 44. The board connection portion 46 linearly extends from the lower end of the leg portion 45 so as to be substantially parallel to the upper surface of the circuit board 10. As shown in fig. 12, the pair of substrate connection portions 46 is disposed so as to overlap the pair of lands 11 in a plan view, and each substrate connection portion 46 is disposed at a central position of the land 11 in the left-right direction. The board connection portion 46 is conductively bonded to the upper surface of the pad 11 by reflow soldering.

In the non-shielding substrate connector 47, in contrast to the shielding substrate connector 42, the pitch Pn in the left-right direction between the protruding-piece-shaped connecting portions 44 of the pair of terminal parts 43 is smaller than the pitch Po in the left-right direction between the substrate connecting portions 46. The pitch Pn is a distance between the centers of a pair of tab-shaped connection portions 4 adjacent to each other on the left and right sides when the center of each tab-shaped connection portion 44 in the width direction (the left and right direction parallel to the arrangement direction of the pair of tab-shaped connection portions 44) is defined. Therefore, in the terminal part 43 located on the left side, the upper end side regions of the tab-shaped connecting portion 44 and the leg portion 45 are eccentric to the right with respect to the lower end side region of the leg portion 45 and the substrate connecting portion 46. In the terminal fitting 43 located on the right side, the upper end side regions of the tab-shaped connecting portion 44 and the leg portion 45 are eccentric to the left with respect to the lower end side region of the leg portion 45 and the substrate connecting portion 46.

The pitch Po in the left-right direction between the substrate connection portions 46 in the non-shielding substrate connector 47 is the same size as the pitch Po in the left-right direction between the substrate connection portions 46 in the shielding substrate connector 42. Therefore, the pitch Pn of the projecting-piece-shaped connection portions 44 in the non-shielding-board connector 47 is narrower than the pitch Pw of the projecting-piece-shaped connection portions 44 in the shielding-board connector 42. The pitch Po of the board connection portions 46, the pitch Pw of the projecting-piece-shaped connection portions 44 in the shielded board connector 42, and the pitch Pn of the projecting-piece-shaped connection portions 44 in the unshielded board connector 47 have a dimensional relationship of Po to Pw/2+ Pn/2.

By this dimensional relationship, the pair of terminal parts 43 can be shared by both the shielded substrate connector 42 and the non-shielded substrate connector 47, and the positional relationship of the pair of lands 11 of the circuit board 10 can be shared by the shielded substrate connector 42 and the non-shielded substrate connector 47. Thus, it is possible to correspond to both the shielded board connector 42 and the unshielded board connector 47 with only two kinds of terminal fittings 43 and one kind of circuit board 10.

< example 3>

Next, embodiment 3 embodying the present invention will be described with reference to fig. 13 to 16. The connection structure of embodiment 3 is a connection structure in which a pair of bilaterally symmetrical terminal fittings 50 mounted on a shielded board connector 48 and a non-shielded board connector 49 are configured differently from embodiment 1. The other structures are the same as those of embodiment 1, and therefore the same reference numerals are given to the same structures, and the description of the structures, the operations, and the effects is omitted.

A pair of left and right terminal fittings 50 (a shielding terminal fitting and a non-shielding terminal fitting described in claims) of the shielding substrate connector 48 are held by the shielding terminal holding member 21 in a state of being inserted through the shielding terminal insertion portion 22. As shown in fig. 13 and 14, the pair of terminal fittings 50 have a bilaterally symmetrical shape. Each terminal fitting 50 is a terminal fitting formed into a predetermined shape by bending a single elongated metal material. The terminal component 50 includes a tab-shaped connection portion 51 (a shielding tab-shaped connection portion and a non-shielding tab-shaped connection portion according to the claims), a leg portion 52 (a shielding leg portion and a non-shielding leg portion according to the claims), and a substrate connection portion 53 (a shielding substrate connection portion and a non-shielding substrate connection portion according to the claims).

The protruding-piece-shaped connecting portion 51 extends linearly in the front-rear direction (direction parallel to the upper surface of the circuit board 10), and penetrates the shield press-fitting hole 30 of the shield terminal insertion portion 22 in the front-rear direction. The distal end side region of the projecting-piece-shaped connecting portion 51 projects forward of the shielding terminal insertion portion 22 and is accommodated in the shielding cover portion 23. The rear end of the tab-shaped connecting portion 51 protrudes rearward of the dielectric body (not shown) constituting the shield terminal insertion portion 22 and is covered by the rear end of the outer conductor 28.

The leg portion 52 linearly extends downward (in a direction approaching the circuit board 10) substantially perpendicularly from the rear end of the tab-shaped connection portion 51, and is covered by the rear end portion of the outer conductor. The board connection portion 53 linearly extends from the lower end of the leg portion 52 so as to be substantially parallel to the upper surface of the circuit board 10. The width dimension (dimension in the left-right direction) of the substrate connecting portion 53 is smaller than the width dimension of the pad 11. As shown in fig. 14, the pair of board connection portions 53 is disposed so as to overlap the pair of lands 11 in a plan view, and each board connection portion 53 is disposed at a central position of the land 11 in the left-right direction. The board connection portion 53 is conductively joined to the upper surface of the pad 11 by reflow soldering.

The pair of terminal fittings 50 have a larger pitch Pw in the left-right direction between the tab-shaped connection portions 51 than a pitch Po in the left-right direction between the board connection portions 53. The pitch Pw is a distance between the centers of a pair of tab-shaped connection portions 51 adjacent to each other on the left and right sides when the center of each tab-shaped connection portion 51 in the width direction (the left and right direction parallel to the arrangement direction of the pair of tab-shaped connection portions 51) is defined. The pitch Po is a distance between the centers of the pair of substrate connecting portions 53 adjacent to each other in the left-right direction when the center of each substrate connecting portion 53 in the width direction (the left-right direction parallel to the arrangement direction of the pair of substrate connecting portions 53) is defined.

As shown in fig. 13 and 14, the leg portion 52 and the board connecting portion 53 are concentrically positioned with their centers aligned in the width direction (left-right direction) in a plan view and a rear view. The protruding piece-shaped connecting portion 51 is offset to either the left or the right with respect to the leg portion 52 and the board connecting portion 53. In the terminal part 50 located on the left side, the tab-shaped connecting portion 51 is eccentric to the left with respect to the leg portion 52 and the board connecting portion 53, and in the terminal part 50 located on the right side, the tab-shaped connecting portion 51 is eccentric to the right with respect to the leg portion 52 and the board connecting portion 53.

The pair of terminal fittings 50 of the non-shielding substrate connector 49 are held by the non-shielding terminal holding member 36 in a state of being individually inserted into the non-shielding press-fitting holes 41 in a press-fitted state. As shown in fig. 15 and 16, the pair of terminal fittings 50 in the non-shielding substrate connector 49 are also in a bilaterally symmetrical shape, as in the shielding substrate connector 48. The projecting-piece-shaped connecting portion 51 extends linearly in the front-rear direction (direction parallel to the upper surface of the circuit board 10), and penetrates the non-shielding press-fitting hole 41 of the non-shielding terminal insertion portion 37 in the front-rear direction. The tip end side region of the projecting-piece-shaped connecting portion 51 projects forward of the non-shielding terminal insertion portion 37 and is accommodated in the non-shielding cover portion 38. The rear end of the tab-shaped connecting portion 51 protrudes rearward of the non-shielding terminal insertion portion 37.

The leg portion 52 linearly extends downward (in a direction approaching the circuit board 10) substantially vertically from the rear end of the tab-shaped connection portion 51. The board connection portion 53 linearly extends from the lower end of the leg portion 52 so as to be substantially parallel to the upper surface of the circuit board 10. As shown in fig. 16, the pair of board connection portions 53 is disposed so as to overlap the pair of lands 11 in a plan view, and each board connection portion 53 is disposed at a central position of the land 11 in the left-right direction. The board connection portion 53 is conductively bonded to the upper surface of the pad 11 by reflow soldering.

In the non-shielding substrate connector 49, in contrast to the shielding substrate connector 48, the pitch Pn in the left-right direction between the protruding-piece-shaped connecting portions 51 of the pair of terminal parts 50 is smaller than the pitch Po in the left-right direction between the substrate connecting portions 53. The pitch Pn is a distance between the centers of a pair of tab-shaped connection portions 51 adjacent to each other on the left and right sides when the center of each tab-shaped connection portion 51 in the width direction (the left and right direction parallel to the arrangement direction of the pair of tab-shaped connection portions 51) is defined. Therefore, in the terminal fitting 50 located on the left side, the tab-shaped connecting portion 51 is eccentric rightward with respect to the leg portion 52 and the board connecting portion 53. In the terminal fitting 50 located on the right side, the tab-shaped connecting portion 51 is eccentric in the left direction with respect to the leg portion 52 and the board connecting portion 53.

The pitch Po in the left-right direction between the substrate connection portions 53 in the non-shielding substrate connector 49 is the same size as the pitch Po in the left-right direction between the substrate connection portions 53 in the shielding substrate connector 48. Therefore, the pitch Pn of the projecting-piece-shaped connection portions 51 in the non-shielding-board connector 49 is narrower than the pitch Pw of the projecting-piece-shaped connection portions 51 in the shielding-board connector 48. The pitch Po of the board connection portions 53, the pitch Pw of the projecting-piece-shaped connection portions 51 in the shielded board connector 48, and the pitch Pn of the projecting-piece-shaped connection portions 51 in the unshielded board connector 49 are in a dimensional relationship of Po to Pw/2+ Pn/2.

By this dimensional relationship, the pair of terminal fittings 50 can be shared by both the shielded substrate connector 48 and the non-shielded substrate connector 49, and the positional relationship of the pair of lands 11 of the circuit board 10 can be shared by the shielded substrate connector 48 and the non-shielded substrate connector 49. Thus, it is possible to correspond to both the shielded board connector 48 and the unshielded board connector 49 with only two kinds of terminal fittings 50 and one kind of circuit board 10.

< other examples >

The present invention is not limited to the embodiments described above and illustrated in the drawings, and for example, the following embodiments are also included in the technical scope of the present invention.

(1) In embodiments 1 to 3, the pair of terminal parts for shielding and the pair of terminal parts for non-shielding are used in common, but the pair of terminal parts for shielding and the pair of terminal parts for non-shielding may be dedicated terminal parts having different shapes.

(2) In the above embodiments 1 to 3, the pair of shielding terminal fittings are formed in the bilaterally symmetrical shape, but the pair of shielding terminal fittings may be formed in the bilaterally asymmetrical shape.

(3) In embodiments 1 to 3, the pair of non-shielding terminal fittings are formed in a symmetrical shape, but the pair of non-shielding terminal fittings may be formed in a asymmetrical shape.

Description of the reference numerals

10: circuit board

11: bonding pad

20. 42, 48: connector for shield substrate

21: terminal holding member for shielding

31. 43, 50: terminal parts (terminal parts for shielding, non-shielding)

32. 44, 51: tab-shaped connecting part (tab-shaped connecting part for shielding, tab-shaped connecting part for non-shielding)

33. 45, 52: leg (leg for shielding and leg for non-shielding)

34. 46, 53: substrate connecting part (substrate connecting part for shielding, substrate connecting part for non-shielding)

35. 47, 49: connector for non-shielding substrate

36: non-shielding terminal holding member

Pw: spacing between protruding piece-shaped connecting parts in connector for shielding substrate

Pn: spacing between protruding piece-shaped connecting parts in connector for non-shielding substrate

And Po: pitch of substrate connecting parts