JP7393132B2 - Board connector and board connector structure - Google Patents

Description

The present invention relates to a board connector that is attached to a circuit board mounted on various electronic devices and for electrically connecting an electrical transmission body such as a wire cable, and a board connector structure.

As a conventional board connector (hereinafter also referred to as a "connector"), a connector terminal held in a connector housing is bent at a right angle, and the tip of the bent connector terminal is inserted into a connection hole on a circuit board. A horizontal type that can be soldered is known (for example, see Patent Document 1). In this type of connector, when the connector housing is attached to the periphery of the circuit board, the opening thereof is opened outward along the horizontal plane of the circuit board.

In addition, when mounting a connector on a circuit board, the work device is attached to the connector housing in a direction perpendicular to the horizontal surface of the flat circuit board (hereinafter referred to as the "height direction" or "vertical direction"). ) to place the connector housing on the circuit board. Therefore, conventional connectors are stacked and mounted on a circuit board.

Note that, normally, the working device is not attached by sliding the connector along the horizontal surface of the circuit board. In the case of sliding installation, the tips of the connector terminals may be pressed strongly against the circuit board and may be bent excessively. At this time, the connector becomes distorted and floats on the circuit board, making it difficult to solder the connector terminals.

Japanese Patent Application Publication No. 2000-217227

Here, in the conventional connector as disclosed in Patent Document 1, the connector housing is mainly supported by the circuit board via the connector terminal connected to the circuit board, and is slightly lifted in the height direction with respect to the surface of the circuit board. maintained in the state. In this way, if the connector housing is not directly supported by the circuit board and the connector receives an impact from above, the impact may directly act on the connector terminals and cause damage.

In addition, in recent years, as electronic devices have become smaller, there has been a strong demand for higher density and space-saving circuit boards mounted on various electronic devices. As mentioned above, conventional board connectors are mounted in a stacked manner on a circuit board, so when the connector housing is used to hold a large number of connector terminals, the height dimension (back) when mounting the connector is However, there was room for improvement in terms of lowering the height when mounting.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to prevent excessive load from being applied to the connecting portion between the circuit board and the connector terminal, and to reduce the height of the connector during mounting. An object of the present invention is to provide a board connector and a board connector structure that can be realized.

In order to achieve the above-mentioned object, a board connector and a board connector structure according to the present invention are characterized by the following (1) to (5).
(1) A board connecting part provided at one end to be electrically connected to a flat circuit board, and a board connecting part provided at the other end to be electrically connected to the connected components of the mating connector. a component connection part, and a connector terminal in which the board connection part is connected to and fixed to a terminal connection part of the circuit board;
a connector housing that holds the connector terminal and is accommodated with a portion thereof overlapping a notch formed in the circuit board;
With the connector housing accommodated in the notch of the circuit board, the connector housing extends from a portion of the connector housing on the front side of the circuit board along the horizontal plane of the circuit board, and is attached to the surface of the circuit board. at least one abuttable abutment extension;
Equipped with
The connector housing has a cylindrical part that is formed in a cylindrical shape and extends in the insertion direction of the mating connector, and has an opening on one side surface in the insertion direction into which the mating connector is inserted,
The connector terminal is held by a wall of the cylindrical portion on the opposite side from the one side in the insertion direction,
The connector housing is a synthetic resin member that integrally includes the cylindrical part and the abutting extension part,
At least one pair of the abutting extensions are provided,
The first pair of the abutment extension portions are located at both left and right end portions of the outer wall surface of the connector housing on the opposite side to the one side in the insertion direction, and are located halfway from the upper end to the lower end of the outer wall surface. extending toward the opposite side of the one side in the insertion direction, the lower end bottom surface of which is in contact with the surface of the circuit board ,
The connector terminal connects the linear board connecting portion extending in the insertion direction, the linear component connecting portion extending in the insertion direction, and the board connecting portion and the component connecting portion in a state offset from each other. An offset terminal comprising a substantially L-shaped connecting portion,
The upper connector terminal, which is a part of the plurality of connector terminals, is in a posture in which the component connecting portion is located above the board connecting portion, and a peripheral portion of the boundary between the component connecting portion and the connecting portion is held by the wall of the cylindrical part,
The lower connector terminal other than the part of the plurality of connector terminals is positioned at the boundary between the component connection part and the connection part, with the component connection part located below the board connection part. a peripheral portion is held by the wall portion of the cylindrical portion;
The connecting portion of the lower connector terminal is disposed in a gap formed between the outer wall surface of the connector housing and a back wall portion of the notch portion of the circuit board.
A board connector characterized by:

(2) In a side view in the left-right direction, the first pair of the abutting extensions has a lower end than an upper end in an edge extending vertically on the side opposite to the one side in the insertion direction. having a substantially right trapezoidal shape protruding on the side opposite to the one side in the insertion direction;
The board connector according to (1) above, characterized in that:

(3) A plurality of pairs of the contact extension portions are provided,
a second pair of the abutting extensions is disposed on the opening side of the connector housing;
The board connector according to (1) or (2) above.

(4) at least one of the first pair of the abutting extensions extends beyond the board connecting portion of the connector terminal along an extending direction of the board connecting portion;
The board connector according to (3) above, characterized in that:

(5) a flat circuit board with a notch formed therein;
a board connector attached to the notch of the circuit board,
The board connector is
a board connection part provided at one end and electrically connected to the circuit board; a component connection part provided at the other end and electrically connected to a connected component of a mating connector; a connector terminal, wherein the board connection part is connected to and fixed to a terminal connection part of the circuit board;
a connector housing that holds the connector terminal and is accommodated with a portion thereof overlapping the notch of the circuit board;
When the connector housing is housed in the notch of the circuit board, the connector housing extends from a surface side portion of the circuit board along the horizontal plane of the circuit board, and comes into contact with the surface of the circuit board. at least one abutment extension capable of abutment;
has
The connector housing has a cylindrical part that is formed in a cylindrical shape and extends in the insertion direction of the mating connector, and has an opening on one side surface in the insertion direction into which the mating connector is inserted,
The connector terminal is held by a wall of the cylindrical portion on the opposite side from the one side in the insertion direction,
The connector housing is a synthetic resin member that integrally includes the cylindrical part and the abutting extension part,
At least one pair of the abutting extensions are provided,
The first pair of the abutment extension portions are located at both left and right end portions of the outer wall surface of the connector housing on the opposite side to the one side in the insertion direction, and are located halfway from the upper end to the lower end of the outer wall surface. extending toward the opposite side of the one side in the insertion direction, the lower end bottom surface of which is in contact with the surface of the circuit board ,
The connector terminal connects the linear board connecting portion extending in the insertion direction, the linear component connecting portion extending in the insertion direction, and the board connecting portion and the component connecting portion in a state offset from each other. An offset terminal comprising a substantially L-shaped connecting portion,
The upper connector terminal, which is a part of the plurality of connector terminals, is in a posture in which the component connecting portion is located above the board connecting portion, and a peripheral portion of the boundary between the component connecting portion and the connecting portion is held by the wall of the cylindrical part,
The lower connector terminal other than the part of the plurality of connector terminals is positioned at the boundary between the component connection part and the connection part, with the component connection part located below the board connection part. a peripheral portion is held by the wall portion of the cylindrical portion;
The connecting portion of the lower connector terminal is disposed in a gap formed between the outer wall surface of the connector housing and a back wall portion of the notch portion of the circuit board.
A board connector structure characterized by:

According to the board connectors having the configurations (1) and (2) above, a notch is formed in the circuit board, and the connector housing is accommodated in the notch with a portion of the connector housing overlapped with the notch. Compared to a structure in which the circuit board is laminated and mounted on a circuit board, the overall dimension in the height direction when mounted can be shortened (lower height). In addition, in the housed state, there is an abutting extension part that extends from the surface side of the circuit board of the connector housing along the horizontal plane of the circuit board, so when the connector housing is attached to the notch part, it can be lifted up. Even if force is applied from any direction, the connector housing can be stably supported. Moreover, this support can prevent an excessive load from being applied to the connection portion between the circuit board and the connector terminal. That is, with this configuration, it is possible to prevent an excessive load from being applied to the connection portion between the circuit board and the connector terminal, and to realize a reduction in the height of the connector during mounting.

Furthermore, according to the board connectors having the configurations (1) and (2) above, the connector housing can be supported on the circuit board at a plurality of support points, and can be supported more stably. By supporting at multiple points, it is possible to more reliably prevent an excessive load from being applied to the connection portion between the circuit board and the connector terminal.

According to the board connector having the configuration (3) above, the first pair of abutting extensions and the second pair of abutting extensions are arranged apart from each other by a predetermined distance. By arranging the support points at a distance, the connector housing can be more stably supported against external impact.

According to the board connector having the configuration (4) above, the first pair protects the board connection part from external impact, and further prevents excessive load from being applied to the connection part between the circuit board and the connector terminal. This can be reliably prevented.

According to the board connector structure having the configuration (5) above, it is possible to prevent an excessive load from being applied to the connecting portion between the circuit board and the connector terminal, and to achieve a reduction in the height of the connector when mounted. .

According to the configuration of the board connector and the board connector structure of the present invention, the notch is formed in the circuit board, and the connector housing is accommodated in the notch with a portion of the connector housing overlapped with the notch. Compared to a structure in which the structure is stacked and mounted on a board, the overall dimension in the height direction when mounted can be shortened (lower height). In addition, in the housed state, the contact extension part is provided that extends from the surface side of the circuit board of the connector housing along the horizontal plane of the circuit board, so even if the connector housing is installed in the notch, the connector The housing can be stably supported on the circuit board. Moreover, this support can prevent an excessive load from being applied to the connection portion between the circuit board and the connector terminal. That is, according to the present embodiment, it is possible to prevent an excessive load from being applied to the connection portion between the circuit board and the connector terminal, and to realize a reduction in the height of the connector during mounting.

The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by reading the mode for carrying out the invention (hereinafter referred to as "embodiment") described below with reference to the accompanying drawings. .

FIG. 1 is a perspective view illustrating the configuration of a board connector according to an embodiment of the present invention. FIG. 2 is a perspective view illustrating the configuration of the circuit board shown in FIG. 1. FIG. FIG. 3 is a perspective view illustrating the structure of the engagement peg shown in FIG. 1. FIG. 4 is a perspective view illustrating the connector terminal shown in FIG. 1. FIG. 5 is a front view of the board connector shown in FIG. 1. FIG. 6 is a sectional view taken along line AA in FIG. FIG. 7 is a top view of the board connector illustrating the configuration of the abutting extension shown in FIG. 1. FIG. 8 is a sectional view illustrating a modification of the board connector according to the embodiment of the present invention.

Specific embodiments of the present invention will be described below with reference to each figure.

<Connector configuration>
First, the configuration of the connector 1 according to the present embodiment will be described with reference to FIGS. 1 to 3. FIG. 1 is a perspective view illustrating the configuration of a board connector 1 according to the present embodiment. FIG. 2 is a perspective view illustrating the configuration of the circuit board 2 shown in FIG. 1. FIG. 3 is a perspective view illustrating the structure of the engagement peg 30 shown in FIG. 1.

As shown in FIG. 1, a connector 1 is a circuit board mounted connector, and is used by being attached to a circuit board 2. The connector 1 is provided as a female type, and is fitted into a male connector (a mating connector) not shown. The connector 1 includes a plurality of connector terminals 10 (see FIG. 3, etc.) for electrically connecting the mating connector and the circuit board 2, a connector housing 20 holding the plurality of connector terminals 10, and a connector housing 20. The connector housing 20 includes an engagement peg 30 that irremovably engages with the circuit board 2, and a plurality of pairs of abutment extension parts 25A, 25B, and 25C that are integrally provided on the connector housing 20. In this embodiment, three pairs of abutting extensions are formed.

The connector housing 20 is made of insulating synthetic resin and has a substantially box shape. The connector housing 20 is fitted into a notch 3 (see FIG. 2) formed in the circuit board 2, and is housed so that a part of the side surface of the connector housing 20 overlaps the notch in the circuit board 2.

As shown in FIG. 2, the circuit board 2 is formed into a rectangular flat plate shape, and a circuit pattern (not shown) is arranged on the surface thereof. Furthermore, in this embodiment, a rectangular notch 3 extending inward of the circuit board 2 is formed in the center of the front edge of the circuit board 2 . The notch portion 3 has a back wall portion 4 and a pair of side wall portions 5 connected at both left and right edges of the back wall portion 4. On the surface side of the edge portion of the cutout portion 3 adjacent to the back wall portion 4, there are a plurality of terminal connection portions 6 in the left and right direction for connection to the board connection portions 11 (see FIG. 4) of the connector terminals 10. In the embodiment, eight (8) are arranged in parallel. That is, the terminal connecting parts 6 connected to the plurality of connector terminals 10 are respectively arranged on the same horizontal plane on the circuit board 2. Further, a rectangular placement recess 7 on which the placement portion 33 of the engagement peg 30 is placed is formed on the surface side of the edge portion of the cutout portion 3 adjacent to the side wall portion 5. .

The connector housing 20 has an opening 21 into which a mating connector is inserted. The opening 21 of the connector housing 20 is located on the opposite side of the back wall 4 of the notch 3 of the circuit board 2, that is, on the front outer wall surface 22, on the outside of the circuit board 2 (the front side in the figure) in the same way as the notch 3. ). In the opening 21, the component connecting portions 12 of the connector terminals 10 are arranged in two rows in the vertical direction (direction perpendicular to the horizontal plane of the circuit board 2) (see FIGS. 5 and 6).

Further, the connector housing 20 is attached to the circuit board 2 by the engagement peg 30 and the abutting extensions 25A, 25B, and 25C. Two pairs of support bulges 23A and 23B are provided on both outer wall surfaces 22 of the connector housing 20 in the left and right direction. One pair 23A of the two pairs of support bulges 23A and 23B is arranged at the front end of the outer wall surface 22 on both the left and right sides of the connector housing 20. The other pair 23B is arranged at the rear end portions of the outer wall surface 22 on both the left and right sides. Each of the support bulges 23A and 23B is provided to bulge outward from the outer wall surface 22 in the left-right direction. The supporting bulges 23A and 23B are formed in a generally rectangular block shape that bulges out from the upper end to the lower end of the outer wall surface 22 as a whole. The support bulge 23B at the rear end further bulges outward in the front-rear direction. Due to this bulge, a gap S is formed between the rear outer wall surface 22 (rear surface) of the connector housing 20 and the back wall portion 4 of the cutout portion 3 of the circuit board 2 (FIGS. 6 and 7). reference).

A locking groove 24 is formed in the proximal end portion of each of the support bulges 23A and 23B that bulges out from the outer wall surface 22. The locking groove 24 is open toward the upper outer wall surface 22 of the connector housing 20, and is provided on the inner surface facing each of the support bulges 23A, 23B adjacent to each other in the front-rear direction. It extends downward from the upper end to a depth of a predetermined distance. Further, the width (horizontal dimension) of the locking groove 24 is set to accommodate the locking piece 32 (see FIG. 3) of the engagement peg 30.

As shown in FIG. 3, the engagement peg 30 is fixed to the circuit board 2 and locks the support bulges 23A and 23B of the connector housing 20. Further, the engagement peg 30 is formed by bending a plate-like member made of metal such as copper or stainless steel. That is, the engagement peg 30 is formed by bending the other end of a substantially rectangular flat plate member having a widened portion at one end at a substantially right angle at one point. As a result, the engagement peg 30 is configured to include a locking portion 31 disposed on one side of the bent portion, and a mounting portion 33 disposed on the other side of the bent portion. Ru.

The locking portion 31 locks onto the support bulges 23A and 23B of the connector housing 20, thereby making it impossible for the connector housing 20 to be removed upwardly from the circuit board 2. A locking piece 32, which is a widened portion of the locking portion 31 and extends in the front-rear direction, is inserted into the locking groove 24 of the support bulges 23A, 23B, and locks the support bulges 23A, 23B from above. The thickness of the locking piece 32 is slightly thinner than the width (horizontal dimension) of the locking groove 24 so that the locking piece 32 can be inserted into the locking groove 24 of each of the supporting bulges 23A and 23B. Further, the width (vertical dimension) of the locking piece 32 is set slightly shorter than the depth (vertical dimension) of the locking groove 24 so as not to be exposed from the supporting bulges 23A, 23B. The mounting portion 33 is placed on the surface of the circuit board 2 and fixes the engagement peg 30 to the circuit board 2. The mounting portion 33 is fitted into the mounting recess 7 of the circuit board 2 and fixed by adhesive or solder. As described above, although the engagement peg 30 is designed to prevent the connector housing 20 from coming off in the upward direction, a downward force is applied to the engagement peg 30 when the connector housing 20 is housed in the notch 3. The force for holding the connector housing 20 when the connector housing 20 is removed is weak, and detachment of the connector housing 20 cannot be reliably prevented. Therefore, the connector housing 20 according to the embodiment of the present invention is provided with the abutting extension parts 25A, 25B, and 25C, so that the connector housing 20 can be lowered while being accommodated in the cutout part 3, as described later. Even if a directional force is applied, it is reliably supported by the circuit board 2.

<Connector terminal configuration>
Next, the configuration of the connector terminal 10 will be described with reference to FIGS. 4 to 6. FIG. 4 is a perspective view illustrating the connector terminal 10 shown in FIG. 1. FIG. 5 is a front view of the board connector 1 shown in FIG. 1. FIG. 6 is a sectional view taken along line AA in FIG.

As shown in FIG. 4, the connector terminal 10 is formed by bending a conductive metal wire member at two locations at approximately right angles. As a result, the connector terminal 10 has a linear board connection part 11 provided at the rear end (one end), a linear component connection part 12 provided at the front end (other end), and a board connection part 12 provided at the front end (other end). It has a substantially L-shaped connecting part 13 that connects the part 11 and the component connecting part 12, and is formed in a wire shape.
In addition, in this embodiment, the component connection part 12 mentioned above refers to the part which protrudes from the opening part 21 of the connector housing 20 (refer FIG. 5 and FIG. 6). The board connection portion 11 refers to a portion of the circuit board 2 that is connected to the terminal connection portion 6 . The connecting portion 13 refers to a portion other than the component connecting portion 12 and the board connecting portion 11.

The board connecting part 11 is a part that is electrically connected to the circuit board 2. The component connecting portion 12 is a portion that is electrically connected to a connected component (not shown) of a mating connector. That is, in this embodiment, all the connector terminals 10 are connected to each other through the connecting portion 13 so that the axis C1 of the board connecting portion 11 and the axis C2 of the component connecting portion 12 are substantially parallel to each other and in a direction in which they intersect. An offset terminal is formed by being offset. In this embodiment, all the connector terminals 10 (offset terminals) are of the same type (one type) formed in the same shape.

As shown in FIGS. 6 and 7, in this embodiment, there are eight connector terminals 10, and each of the plurality of connector terminals 10 has a board connecting portion 11 connected to the terminal connecting portion 6 of the circuit board 2 by soldering. They are each fixed and connected (see Figure 7). Further, the plurality of connector terminals 10 are located at the rear end of the connector housing 20 on the opposite side from the opening 21 at the base end portion of the component connection portion 12 (around the boundary between the component connection portion 12 and the coupling portion 13). It is held by the side walls 26. The component connecting portions 12 of the connector terminal 10 each protrude inside the opening 21 along the front-rear direction. The connecting portion 13 of the connector terminal 10 is arranged in the gap S and exposed to the outside.

In this embodiment, the eight connector terminals 10 are held in line in two rows in the vertical direction. That is, in the upper row (some) four connector terminals 10 are arranged in parallel along the horizontal plane of the circuit board 2, that is, along the left-right direction. In the lower row, four (other parts) are arranged in parallel along the left-right direction. Specifically, in the same type, the axis C2 of the component connection part 12 of each upper connector terminal 10 (offset terminal) is located above the axis C1 of the board connection part 11 (on the horizontal plane of the circuit board 2). (on one side in a direction perpendicular to the other). On the other hand, the axis C2 of the component connection part 12 of each of the lower connector terminals 10 is arranged below (on the other side) the axis C1 of the board connection part 11 thereof. As described above, the connector housing 20 is accommodated in the notch 3 of the circuit board 2 so that a portion of the connector housing 20 overlaps with the notch 3 of the circuit board 2 . With such a structure of the connector 1, the connector terminals 10 are held in two rows in the vertical direction in the connector housing 20 even if they are of the same shape and type.

At this time, both the planes containing the board connection part 11 and the component connection part 12 of the upper connector terminal 10 and the planes including the board connection part 11 and the component connection part 12 of the lower connector terminal 10 are as follows. It is provided to intersect perpendicularly to the horizontal plane of the circuit board 2. This vertical intersection allows the vertical separation distance between the component connection portion 12 of the upper connector terminal 10 and the component connection portion 12 of the lower connector terminal 10 to be set to a maximum.

<Configuration of abutting extension part>
Next, with reference to FIG. 7, the configuration of the abutting extensions 25A, 25B, and 25C of the connector housing 20 will be described. FIG. 7 is a top view of the board connector 1 illustrating the configuration of the abutting extensions 25A, 25B, and 25C shown in FIG. 1.

As shown in FIG. 7, three pairs of contact extensions 25A, 25B, and 25C are provided on both outer wall surfaces 22 of the connector housing 20 in the left and right direction. The first to third pairs of abutting extensions 25A, 25B, and 25C are all integrally provided on the supporting bulges 23A and 23B, respectively (see FIG. 1). The first pair of abutting extensions 25A are disposed on support bulges 23A disposed at the front end portions of the outer wall surfaces 22 on both left and right sides. That is, the first pair of abutting extensions 25A are arranged on the opening 21 side of the connector housing 20. The second and third pairs of abutting extensions 25B and 25C are respectively disposed on support bulges 23B disposed at the rear end portions of the outer wall surface 22 on both the left and right sides. That is, the second and third pairs of abutting extensions 25B and 25C are arranged on the rear wall 26 side of the connector housing 20. With this arrangement, the first pair of abutting extensions 25A and the second and third pairs of abutting extensions 25B, 25C are spaced apart from each other by a predetermined distance in the front-rear direction. .

When the connector housing 20 is housed in the notch 3 of the circuit board 2, the first pair of abutting extensions 25A are arranged on the front end of the outer wall surface 22 on both the left and right sides of the surface of the circuit board 2. It extends along the left-right direction outer side (horizontal surface of the circuit board 2) from the vertically intermediate portion thereof. The first pair of abutting extensions 25A are formed flush with the opening 21 of the connector housing 20 and protrude like wings, and their back surfaces abut against the front surface of the circuit board 2.

Similarly, the second pair of contact extension portions 25B are located on the front side of the circuit board 2 at the rear end portions of the outer wall surfaces 22 on both left and right sides thereof, and are located on the outer side in the left and right direction from the middle portion in the vertical direction. It will be extended along the The second pair of abutting extensions 25B are formed to protrude in the shape of wings, and their back surfaces abut against the front surface of the circuit board 2.
Note that the extension amounts (horizontal dimensions) of the first and second pairs of abutment extensions 25A and 25B are set to be approximately the same, but the width of the first pair of abutment extensions 25A (Dimension in the front-rear direction) is set larger than that of the second pair of abutting extension portions 25B.

The third pair of contact extensions 25C are formed on the surface of the circuit board 2 at both left and right ends of the outer wall surface 22 on the rear side when the connector housing 20 is housed in the notch 3 of the circuit board 2. It extends from the upper end to the lower end of the outer wall surface 22 along the outer side in the front-rear direction. The third pair of abutment extension portions 25C are formed as reinforcing rib portions having a substantially right-angled trapezoid shape when viewed from the side in the left-right direction, and the bottom surfaces of the abutment extension portions 25C abut against the surface of the circuit board 2.

Further, each of the third pair of abutting extension portions 25C is provided to extend beyond the board connecting portion 11 in the front-rear direction, that is, along the extending direction of the board connecting portion 11 of the connector terminal 10. That is, the board connecting portion 11 of the connector terminal 10 is arranged within a region defined (surrounded) by the third pair of abutting extension portions 25C.

When the connector housing 20 is pressed downward by an impact or the like, the first to third pairs of abutting extensions 25A, 25B, and 25C abut against the surface of the circuit board 2 and support the connector housing 20. . This support makes it possible to prevent the force caused by the pressing from directly acting on the connector terminal 10 and damaging it.

Furthermore, the contact extensions 25A, 25B, and 25C can stably support the connector housing 20 with respect to the circuit board 2 at a plurality of support points. Further, at least one pair (in this embodiment, three pairs) of the abutting extending portions 25A, 25B, and 25C are provided, and the first pair of abutting extending portions 25A and the second and third pairs of abutting extending portions 25A, 25B, and 25C are provided. The contact extension portions 25B and 25C are spaced apart from each other in the front-rear direction. Therefore, the contact extensions 25A, 25B, and 25C can support the connector housing 20 more stably.

<Advantages of the board connector and board connector structure of this embodiment>
As explained above, according to the board connector 1 and the board connector structure of the present embodiment, the board connector 1 is provided at one end, and is connected to the flat circuit board 2 for electrical connection. It has a board connection part 11 and a component connection part 12 provided at the other end to be electrically connected to a connected component of a mating connector, and the board connection part 11 is a terminal connection part of the circuit board 2. 6, a connector housing 20 that holds the connector terminal 10 and is accommodated with a portion of the notch 3 formed in the circuit board 2 overlapping with the notch 3; 20 is housed in the notch 3 of the circuit board 2, the connector housing 20 extends from the surface side of the circuit board 2 along the horizontal surface of the circuit board 2, and comes into contact with the surface of the circuit board 2. possible abutting extensions 25A, 25B, and 25C.

For this reason, a notch 3 is formed in the circuit board 2, and the connector housing 20 is accommodated with a portion of the notch 3 overlapping the notch 3, so that the connector housing 20 is attached in a stacked manner on the circuit board 2. Compared to this, the overall dimension in the height direction when mounted can be shortened (lower height). In addition, in the housed state, contact extensions 25A, 25B, and 25C are provided that extend from the surface side of the circuit board 2 of the connector housing 20 along the horizontal plane of the circuit board 2, so that the connector housing 20 can be Even when attached to the notch 3, the connector housing 20 can be stably supported on the circuit board 2. Moreover, this support can prevent an excessive load from being applied to the connection portion between the circuit board 2 and the connector terminal 10. That is, according to the present embodiment, it is possible to prevent an excessive load from being applied to the connection portion between the circuit board 2 and the connector terminal 10, and to reduce the height of the connector 1 when mounted.

Further, according to the board connector 1 and the board connector structure of the present embodiment, a plurality of pairs (three pairs in the present embodiment) of the abutting extension portions 25A, 25B, and 25C are provided. Therefore, the connector housing 20 can be supported on the circuit board 2 at a plurality of support points and can be supported more stably. By supporting at multiple points, it is possible to more reliably prevent an excessive load from being applied to the connection portion between the circuit board 2 and the connector terminal 10.

Further, according to the board connector 1 and the board connector structure of the present embodiment, the connector housing 20 is formed in a box shape, and the opening 21 for inserting the mating connector is formed on the front outer wall surface 22 ( The connector terminal 10 is held by the wall 26 of the connector housing 20 on the opposite side from the opening 21, and the contact extensions 25A, 25B, 25C are The first pair 25A of the abutting extensions 25A, 25B, and 25C is disposed on the opening 21 side of the connector housing 20, and the first pair 25A of the abutting extensions 25A, 25B, and 25C are arranged on the opening 21 side of the connector housing 20. , 25B, 25C, the second and third pairs 25B, 25C are arranged on the wall 26 side of the connector housing 20. Therefore, the first pair of abutting extensions 25A and the second and third pairs of abutting extensions 25B, 25C are spaced apart from each other by a predetermined distance in the front-rear direction. By arranging the support points at a distance, the connector housing 20 can be more stably supported against external impact.

Further, according to the board connector 1 and the board connector structure of the present embodiment, the third pair 25C of the contact extension parts 25A, 25B, and 25C is arranged in the extending direction of the board connection part 11 of the connector terminal 10. It extends along and beyond the board connection portion 11 . Therefore, the third pair 25C can protect the board connection part 11 from external impact, and can more reliably prevent excessive load from being applied to the connection part between the circuit board 2 and the connector terminal 10. .

Next, with reference to FIG. 8, a modification of the connector 1 of this embodiment will be described. FIG. 8 is a sectional view illustrating a modification of the board connector 1 according to the embodiment of the present invention.

As shown in FIG. 8, as a modified example of the connector 1 of this embodiment, the connector terminals 10 are not provided in the same type (one type) with the same shape, but are provided in multiple types (in this modified example, two types) as offset terminal types. type). In this case, the two types of connector terminals 10 have different offset amounts. Also in this modification, the same effects as in the above embodiment can be obtained.

Although the description of the specific embodiments has been completed above, aspects of the present invention are not limited to these embodiments, and modifications and improvements can be made as appropriate.
For example, in the embodiment described above, a plurality of pairs of abutting extensions 25A, 25B, and 25C are provided, but the present invention is not limited thereto. Although there may be one pair of abutting extensions 25A, 25B, and 25C, or there may be one, the above-mentioned effects can be more clearly obtained when there are a plurality of pairs.

Further, although both of the third pair of abutment extension parts 25C are provided so as to extend beyond the board connection part 11 along the extending direction of the board connection part 11 of the connector terminal 10, the present invention is not limited thereto. Although it may be provided so as to extend beyond only one of them, the above-mentioned effects can be more clearly obtained in both cases.

Furthermore, although all the connector terminals 10 are of the offset terminal type, they are not limited to this type. Some of the connector terminals 10 may include other types, for example, straight type terminals. In this case, the straight type terminal is held at the center in the vertical direction in a plurality of vertical rows.

Further, although the number of types of offset terminals of the connector terminals 10 is one type, the present invention is not limited to this. A plurality of types of offset terminals having different offset amounts may be used. In this case, they are held in a nested structure in vertical columns according to their offset amounts. That is, the offset terminals with the largest offset amount are held at the top and bottom in the vertical column. The next largest offset terminal is held inside the next one in turn.

Further, although the board connecting portion 11 of the connector terminal 10 is shaped to extend parallel to the circuit pattern formed on the surface of the circuit board 2, the shape is not limited thereto. A through hole is formed in the circuit board 2, and the board connection part 11 is formed perpendicular to the surface of the circuit board 2, so that when the connector housing 20 is attached to the notch part 3, the board connection part 11 is formed through the hole. It may be inserted into a hole.

Here, the features of the board connector 1 and the board connector structure according to the embodiment of the present invention described above will be briefly summarized and listed below in [1] to [5].
[1] A board connection part (11) provided at one end for electrical connection with the flat circuit board (2), and a board connection part (11) provided at the other end for electrical connection with the connected components of the mating connector. a component connection part (12) for connection to the circuit board (2), and the board connection part (11) is connected to and fixed to the terminal connection part (6) of the circuit board (2). )and,
a connector housing (20) that holds the connector terminal (10) and is accommodated with a portion thereof overlapping a notch (3) formed in the circuit board (2);
With the connector housing (20) accommodated in the notch (3) of the circuit board (2), the circuit board is removed from the front side of the circuit board (2) of the connector housing (20). (2) at least one contact extension part (25A, 25B, 25C) extending along the horizontal plane and capable of contacting the surface of the circuit board (2);
A board connector (1) comprising:

[2] At least one pair of the contact extension portions (25A, 25B, 25C) are provided.
The board connector (1) according to the above [1], characterized in that:

[3] The connector housing (20) is formed in a box shape, and has an opening (21) into which the mating connector is inserted on a side surface that intersects with the circuit board (2) in a horizontal plane;
the connector terminal (10) is held in a wall (26) of the connector housing (20) opposite the opening (21);
A plurality of pairs of the contact extension portions (25A, 25B, 25C) are provided,
The first pair (25A) of the abutting extensions (25A, 25B, 25C) is disposed on the opening (21) side of the connector housing (20), and the first pair (25A) of the abutting extensions (25A, 25B, 25C) 25A, 25B, 25C), a second pair (third pair, 25C) is disposed on the wall (26) side of the connector housing (20).
The board connector (1) according to the above [1] or [2], characterized in that:

[4] At least one of the second pair (third pair, 25C) of the contact extension portions (25A, 25B, 25C) is connected to the board connection portion (11) of the connector terminal (10). extending beyond the board connection part (11) along the direction of extension of the board connection part (11);
The board connector (1) according to the above [3], characterized in that:

[5] A flat circuit board (2) with a notch (3) formed therein;
a board connector (1) attached to the notch (3) of the circuit board (2),
The board connector (1) includes:
A board connecting part (11) provided at one end to be electrically connected to the circuit board (2), and a board connecting part (11) provided at the other end to be electrically connected to the connected components of the mating connector. A connector terminal (10) having a component connecting portion (12), wherein the board connecting portion (11) is connected to and fixed to a terminal connecting portion (6) of the circuit board (2);
a connector housing (20) that holds the connector terminal (10) and is accommodated with a portion thereof overlapping the notch (3) of the circuit board (2);
In a state where the connector housing (20) is accommodated in the notch (3) of the circuit board (2), the circuit board ( 2), at least one contact extension part (25A, 25B, 25C) extending along the horizontal plane and capable of contacting the surface of the circuit board (2);
A connector structure for a circuit board, characterized by having the following.

1 Connector (board connector)
2 Circuit board 3 Notch portion 4 Back wall portion 5 Side wall portion 6 Terminal connection portion 7 Placement recess 10 Connector terminal (offset terminal)
11 Board connection portion 12 Component connection portion 13 Connection portion 20 Connector housing 21 Opening portion 22 Outer wall surface 23A Support bulge portion 23B Support bulge portion 24 Locking groove 25A Contact extension portion 25B Contact extension portion 25C Contact extension Extrusion part 26 Wall part 30 Engagement peg 31 Locking part 32 Locking piece 33 Placement part S Gap C1 Axial center C2 Axial center

Claims (5)

A board connecting part provided at one end to be electrically connected to a flat circuit board, and a component connecting part provided at the other end to be electrically connected to a connected component of a mating connector. and a connector terminal in which the board connection part is connected to and fixed to a terminal connection part of the circuit board;
a connector housing that holds the connector terminal and is accommodated with a portion thereof overlapping a notch formed in the circuit board;
With the connector housing accommodated in the notch of the circuit board, the connector housing extends from a portion of the connector housing on the front side of the circuit board along the horizontal plane of the circuit board, and is attached to the surface of the circuit board. at least one abuttable abutment extension;
Equipped with
The connector housing has a cylindrical part that is formed in a cylindrical shape and extends in the insertion direction of the mating connector, and has an opening on one side surface in the insertion direction into which the mating connector is inserted,
The connector terminal is held by a wall of the cylindrical portion on the opposite side from the one side in the insertion direction,
The connector housing is a synthetic resin member that integrally includes the cylindrical part and the abutting extension part,
At least one pair of the abutting extensions are provided,
The first pair of the abutment extension portions are located at both left and right end portions of the outer wall surface of the connector housing on the opposite side to the one side in the insertion direction, and are located halfway from the upper end to the lower end of the outer wall surface. extending toward the opposite side of the one side in the insertion direction, the lower end bottom surface of which is in contact with the surface of the circuit board ,
The connector terminal connects the linear board connecting portion extending in the insertion direction, the linear component connecting portion extending in the insertion direction, and the board connecting portion and the component connecting portion in a state offset from each other. An offset terminal comprising a substantially L-shaped connecting portion,
The upper connector terminal, which is a part of the plurality of connector terminals, is in a posture in which the component connecting portion is located above the board connecting portion, and a peripheral portion of the boundary between the component connecting portion and the connecting portion is held by the wall of the cylindrical part,
The lower connector terminal other than the part of the plurality of connector terminals is positioned at the boundary between the component connection part and the connection part, with the component connection part located below the board connection part. a peripheral portion is held by the wall portion of the cylindrical portion;
The connecting portion of the lower connector terminal is disposed in a gap formed between the outer wall surface of the connector housing and a back wall portion of the notch portion of the circuit board.
A board connector characterized by: In a side view in the left-right direction, the first pair of the abutting extensions has a lower end in the insertion direction than an upper end in an edge extending up and down on the side opposite to the one side in the insertion direction. having a substantially right trapezoidal shape protruding on the opposite side to the one side;
The board connector according to claim 1, characterized in that: A plurality of pairs of the contact extension portions are provided,
a second pair of the abutting extensions is disposed on the opening side of the connector housing;
The board connector according to claim 1 or 2, characterized in that: At least one of the first pair of the abutment extensions extends beyond the board connection part of the connector terminal along an extending direction of the board connection part.
The board connector according to claim 3, characterized in that: a flat circuit board with a notch formed therein;
a board connector attached to the notch of the circuit board,
The board connector is
a board connection part provided at one end and electrically connected to the circuit board; a component connection part provided at the other end and electrically connected to a connected component of a mating connector; a connector terminal, wherein the board connection part is connected to and fixed to a terminal connection part of the circuit board;
a connector housing that holds the connector terminal and is accommodated with a portion thereof overlapping the notch of the circuit board;
When the connector housing is housed in the notch of the circuit board, the connector housing extends from a surface side portion of the circuit board along the horizontal plane of the circuit board, and comes into contact with the surface of the circuit board. at least one abutment extension capable of abutment;
has
The connector housing has a cylindrical part that is formed in a cylindrical shape and extends in the insertion direction of the mating connector, and has an opening on one side surface in the insertion direction into which the mating connector is inserted,
The connector terminal is held by a wall of the cylindrical portion on the opposite side from the one side in the insertion direction,
The connector housing is a synthetic resin member that integrally includes the cylindrical part and the abutting extension part,
At least one pair of the abutting extensions are provided,
The first pair of the abutment extension portions are located at both left and right end portions of the outer wall surface of the connector housing on the opposite side to the one side in the insertion direction, and are located halfway from the upper end to the lower end of the outer wall surface. extending toward the opposite side of the one side in the insertion direction, the lower end bottom surface of which is in contact with the surface of the circuit board ,
The connector terminal connects the linear board connecting portion extending in the insertion direction, the linear component connecting portion extending in the insertion direction, and the board connecting portion and the component connecting portion in a state offset from each other. An offset terminal comprising a substantially L-shaped connecting portion,
The upper connector terminal, which is a part of the plurality of connector terminals, is in a posture in which the component connecting portion is located above the board connecting portion, and a peripheral portion of the boundary between the component connecting portion and the connecting portion is held by the wall of the cylindrical part,
The lower connector terminal other than the part of the plurality of connector terminals is positioned at the boundary between the component connection part and the connection part, with the component connection part located below the board connection part. a peripheral portion is held by the wall portion of the cylindrical portion;
The connecting portion of the lower connector terminal is disposed in a gap formed between the outer wall surface of the connector housing and a back wall portion of the notch portion of the circuit board.
A board connector structure characterized by:

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