JP2013020808A - Card edge connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a card edge connector capable of further improving electrical connection reliability than a conventional connector.SOLUTION: A slider is provided in an insertion hole of a housing so that it can be displaced in a depth direction under an external force. A terminal has a contact part supported in contact with the slider on a deeper side in a depth direction than a contact point part at a projection part projecting in the insertion hole. The slider is arranged to each contact point part on a deep side in the depth direction, is pressed by a circuit board as the circuit board is inserted, and is displaced to the deep side in the depth direction from an initial position before the circuit board is inserted, to a board insertion completion position, at which the contact point part is in contact with an electrode and the insertion of the circuit board is completed. At the initial position, while the projection part is enlarged by the slider, the contact part is supported, and the contact point part is away from an electrode formation face corresponding to the circuit board. At the board insertion completion position, the contact part of the terminal is completely removed from the slider, and the terminal gives a reaction force due to spring deformation to the circuit board via the contact point part contacting the electrode.

Description

  The present invention relates to a card edge connector.

  Conventionally, as shown in Patent Document 1, a card edge connector is known. In this card edge connector, the circuit board itself serves as a male terminal, and by inserting the end of the circuit board into the card edge connector, a plurality of electrodes provided on the end surface of the circuit board and the housing Electrical contact is made with the exposed contact portion of the terminal.

JP 2003-178834 A

  In the conventional card edge connector, the contact portion stably contacts the electrode by the spring force of the terminal (reaction force due to spring deformation). Therefore, when the circuit board is inserted into the card edge connector or when the circuit board is pulled out from the card edge connector, the contact portion of the terminal contacts the edge of the circuit board or the electrode forming surface, and the plating layer on the terminal surface is peeled off. The terminal may be damaged or deformed. Moreover, there is a possibility that a short circuit may occur due to the plating scraps that have been peeled off. That is, the electrical connection reliability may be reduced.

  In view of the above problems, an object of the present invention is to provide a card edge connector capable of improving the electrical connection reliability as compared with the prior art.

  In order to achieve the above object, each of the inventions described below includes a plurality of electrodes provided on at least one of both surfaces of the end portion of the circuit board by inserting the end portion of the circuit board. The present invention relates to a card edge connector that performs electrical connection with a harness drawn to the outside.

And invention of Claim 1 is
A housing having an insertion hole that is open at the front end surface and into which the end of the circuit board is inserted and disposed;
A spring-deformable member that is held in the housing and electrically connects the electrode and the harness, and protrudes into the insertion hole from the holding portion held in the housing, and in the depth direction opposite to the tip surface in the insertion hole It has a projecting part that includes a contact part that contacts the electrode and extends toward the back side, and the projecting part is perpendicular to both the depth direction and the height direction of the insertion hole corresponding to the thickness direction of the circuit board. A plurality of terminals arranged along a direction;
A slider disposed in the insertion hole so as to be displaceable in the depth direction by receiving an external force, and
The terminal has a contact portion that is supported in contact with the slider, on the deeper side in the depth direction than the contact portion in the protruding portion,
The slider is disposed on the back side in the depth direction with respect to each contact portion, and the initial position before the circuit board is inserted by being pushed by the circuit board as the circuit board is inserted from the front end surface to the back side. To the board insertion completion position where the contact part contacts the electrode and the insertion of the circuit board is completed.
In the initial position, the contact portion is supported in a state where the projecting portion is pushed and expanded by the slider, and the contact portion is located away from the corresponding electrode forming surface of the circuit board.
At the board insertion completion position, the contact portion of the terminal is completely removed from the slider, and the terminal applies a reaction force due to spring deformation to the circuit board via the contact portion that contacts the electrode.

  In the present invention, there is a slider that is disposed on the back side in the depth direction with respect to each contact portion and that is displaced by the circuit board at the time of insertion to be displaced in the depth direction in the insertion hole. In the initial position before the slider is displaced to the back in the depth direction, the contact portion is supported by the slider. In this supported state, the protruding portion is expanded and the contact portion corresponds to the corresponding electrode of the circuit board. The position is away from the forming surface. Thereby, when inserting a circuit board, it can suppress that a contact part contacts a circuit board at least until a circuit board passes a contact part and contacts a slider. And the electrical connection reliability can be improved by suppressing the short circuit due to the peeling of the plating on the surface of the terminal, the deformation of the terminal, and the peeling of the plating scraps.

  In the present invention, the contact portion of the terminal is completely detached from the slider in a state where the slider is displaced to the substrate insertion completion position. Since the load due to spring deformation is not applied to the slider when the terminal is detached from the slider in this way, the contact portion can be stably brought into contact with the electrode by the reaction force due to the spring deformation of the terminal. That is, electrical connection reliability can be improved.

  By the way, in a card edge connector, since the electrical connection is achieved when the contact part of a terminal contacts the electrode of a circuit board, it is preferable that the contact pressure of a terminal and an electrode can be kept constant. In a configuration in which the contact portion is in stable contact with the electrode (the slider is in the board insertion completion position) and the terminal contacts the slider, an external force is applied to the housing and the housing and the circuit board are relatively When it vibrates, the terminal (protruding part) vibrates with the contact part of the slider as a fulcrum, and the contact pressure between the contact part and the electrode changes. It is also conceivable that the internal stress changes with time due to a so-called creep phenomenon, whereby the position of the contact portion of the terminal supported by the slider changes, and consequently the contact pressure fluctuates. In order to prevent such fluctuations in the contact pressure, the fluctuations in the contact pressure must be suppressed by setting the spring force of the terminal against the circuit board high.

  On the other hand, in the present invention, as described above, the terminal is completely detached from the slider in a state where the contact portion is in stable contact with the electrode (the slider is in the substrate insertion completion position). Therefore, there is no influence of the vibration of the protrusion using the slider as a fulcrum or the displacement of the protrusion in the height direction due to the creep phenomenon of the slider, so the fluctuation of the contact pressure between the contact and the electrode is suppressed while suppressing the spring force. It can also be suppressed. As a result, it is possible to further suppress short-circuiting due to peeling of plating on the surface of the terminal, deformation of the terminal, peeling-off of plating scraps, and the like.

  As described in claim 2, it is preferable that at least one of the contact portion support surface of the slider and the slider contact surface of the contact portion has a taper shape that approaches the electrode forming surface as it approaches the tip surface in the depth direction. .

  According to this, the contact portion of the terminal is positioned farthest from the electrode formation surface of the circuit board in the height direction when the slider is in the initial position, and the depth direction is maintained until the electrode contacts the electrode from the initial position. Along with the displacement of the slider toward the back side, it approaches the electrode formation surface of the circuit board. For this reason, before the contact part of a terminal contacts the electrode formation surface (electrode) of a circuit board, the load (spring load) applied to a slider becomes small gradually. Accordingly, it is possible to reduce a load (impact) applied suddenly (instantaneously) to the circuit board when the terminal is detached from the slider. Thereby, for example, wear of the plating layer of the contact and deformation of the terminal can be suppressed.

  According to a third aspect of the present invention, the contact portion support surface of the slider and the slider contact surface of the contact portion preferably have opposing taper shapes.

  According to this, since the terminal easily moves on the slider in a state where the slider (support surface) and the terminal (contact surface) are in contact with each other, for example, the force required when inserting the circuit board can be reduced.

  As described in claim 4, before the contact portion of the terminal is completely removed from the slider, the contact portion is placed on one part of the electrode having a predetermined width in the depth direction until the substrate insertion completion position is reached. The surface of the electrode is preferably wiped.

  According to this, the reaction force (spring load) of spring deformation is distributed not only to the slider but also to the circuit board from the time when the contact portion of the terminal is placed on the electrode. Further, the load applied to the circuit board gradually increases as the load applied to the slider gradually decreases. For this reason, the degree of decrease in the load applied to the slider with respect to the amount of displacement of the slider is larger than in the configuration in which the terminal contact portion is mounted on the electrode at the same time that the terminal is removed from the slider. The load applied to is greatly reduced. Accordingly, it is possible to more effectively reduce the load (impact) applied to the circuit board suddenly (instantaneously).

As described in claim 5, the housing has a protective wall portion provided next to the contact portion in the lateral direction,
The protective wall portion may be extended to a position closer to the electrode forming surface than the contact portion while being separated from the electrode forming surface of the circuit board so as to cover the contact portion at the initial position of the slider in the height direction.

  According to this, even when the circuit board is warped when the circuit board passes through the contact portion of the terminal when the circuit board is inserted or the position of the circuit board varies in the height direction, It is possible to prevent the circuit board from contacting the contact portion. That is, electrical connection reliability can be improved. Further, the warping of the circuit board can be corrected.

  According to the sixth aspect of the present invention, the protective wall portion is provided from a position closer to the tip surface than the contact portion in the depth direction, and the surface facing the electrode formation surface of the circuit board is closer to the depth direction in the depth direction. It is preferable to have a tapered shape that approaches the formation surface.

  According to this, when the circuit board is inserted into the insertion hole, the circuit board can be guided (guided) to a desired position in the height direction by the protective wall portion. That is, positioning in the height direction can be performed.

  According to a seventh aspect of the present invention, the slider is preferably configured such that the bottom surfaces of the plurality of groove portions provided corresponding to the respective contact portions serve as contact portion support surfaces.

  According to this, for example, when assembling so that the contact portion of the terminal is placed on the slider (when forming the card edge connector), the contact portions of the adjacent terminals in the lateral direction come into contact with each other, peeling of the plating layer or the terminal It is possible to suppress the occurrence of deformation and the like.

As described in claim 8, the insertion hole penetrates the housing in the depth direction,
It is preferable to employ a configuration in which the opening opposite to the tip surface is closed by a lid member.

  According to this, by inserting the slider into the insertion hole from the side opposite to the front end surface, the contact portion of the protruding portion that extends toward the back in the depth direction while protruding into the insertion hole from the holding portion held by the housing Can be easily formed. Further, since the slider is inserted and arranged from the depth direction rear side of the contact portion of the terminal, damage to the contact portion can be suppressed. Note that, after the slider is inserted and arranged, the end of the insertion hole on the side opposite to the tip surface is closed by the lid member, so that the terminal and the slider can be protected.

As recited in claim 9, the electrodes of the circuit board are provided in a plurality of rows in the depth direction, and are shifted in the lateral direction for each row,
As a plurality of terminals, corresponding to each of a plurality of rows of electrodes, the protrusions have different lengths from each other, and have the same type as the number of rows of electrodes,
The contact portion of each terminal may be supported by the slider at the same position in the depth direction at the initial position of the slider.

  By adjusting the length of the protruding portion in the terminal as described above, the shape of the slider can be simplified.

On the other hand, as described in claim 10, the electrodes of the circuit board are provided in a plurality of rows in the depth direction, and are shifted in the lateral direction for each row,
The plurality of terminals have the same length of the protruding portion. The slider may have a structure in which the position for supporting the contact portion is different for each row of electrodes in the depth direction.

  Thus, by adjusting the position of the support portion that supports the contact portion of the terminal on the slider side, the same terminal can be used even if the rows are different.

As claimed in claim 11, the electrodes are provided on both sides of the circuit board,
A structure having a terminal protruding from the wall surface of the insertion hole facing one surface of the circuit board and a terminal protruding from the wall surface of the insertion hole facing the surface opposite to the one surface of the circuit board may be adopted as the plurality of terminals. .

  According to this, the electrical connection path | route by a card edge connector can be increased efficiently. In addition, since the circuit board can be fixed by terminals located on both sides of the circuit board, the terminal located on one side of the circuit board and the reaction force caused by spring deformation are located on the other side of the circuit board. Compared to a configuration in which the circuit board is fixed by a support portion that does not provide the circuit board, the position adjustment margin of the circuit board in the height direction can be increased. For example, it is possible to cope with a circuit board having a large warp. It is also possible to suppress an excessive reaction force due to spring deformation from being applied to the circuit board due to warpage or the like.

It is sectional drawing which shows schematic structure of the electronic device which concerns on 1st Embodiment. It is sectional drawing which follows the II-II line | wire of FIG. It is sectional drawing which shows schematic structure of a card edge connector among the electronic devices shown in FIG. It is a top view of the slider seen from the height direction. 3A and 3B are diagrams showing a positional relationship among lands, terminals, and sliders, where FIG. 3A shows a portion along the line Va-Va in FIG. 2, and FIG. 3B shows a portion along the line Vb-Vb in FIG. It is sectional drawing which shows the insertion process of a circuit board, (a) is an initial state, (b) is in the middle of the insertion after slider contact, (c) has shown the insertion completion state. It is a figure which shows the relationship between a slider displacement amount and the spring load by a terminal, (a) shows this embodiment, (b), (c) shows a comparative example. It is a figure which shows the modification of a card edge connector. It is sectional drawing which shows the modification of a card edge connector. It is a figure which shows the modification of a card edge connector, (a) is a top view, (b) is sectional drawing which follows the Xb-Xb line | wire of (a). It is a figure which shows schematic structure of a card edge connector among the electronic devices which concern on 2nd Embodiment, (a) is the top view seen from the front end surface side, (b) is along the XIb-XIb line | wire of (a). (C) is sectional drawing which follows the XIc-XIc line | wire of (b). It is a fragmentary sectional view which shows the insertion process of a circuit board, (a) is an initial state, (b) is in the middle of insertion after slider contact, (c) has shown the insertion completion state. It is a figure which shows the modification of a card edge connector, (a) is a fragmentary sectional view, (b) is sectional drawing which follows the XIIIb-XIIIb line | wire of (a). It is a figure which shows the modification of a card edge connector, (a) is a top view, (b) is sectional drawing which follows the XIVb-XIVb line | wire of (a). It is a fragmentary sectional view showing the modification of a card edge connector. It is a fragmentary sectional view showing the modification of a card edge connector. It is a fragmentary sectional view showing a schematic structure of an electronic device concerning a 3rd embodiment. It is a perspective view which shows schematic structure of a slider among the electronic devices shown in FIG. It is the figure which expanded the lock | rock part periphery among the sliders shown in FIG. It is a figure which shows the insertion process of a circuit board, (a) is a fragmentary sectional view which shows the thing regarding the return means of a slider, (b) is sectional drawing which follows the XXb-XXb line | wire of (a), Comprising: The figure which shows the thing regarding a means, (c) is a fragmentary sectional view which shows the thing regarding the positioning means of a slider, (d) is sectional drawing which follows the XXd-XXd line | wire of (a). FIG. 21 is a diagram illustrating a circuit board insertion process subsequent to FIG. 20. FIG. 22 is a diagram illustrating a circuit board insertion process following FIG. 21; FIG. 23 is a diagram illustrating a circuit board insertion process subsequent to FIG. 22; It is a figure which shows a board | substrate insertion completion state. It is a figure which shows the drawing process of a circuit board, (a) is a fragmentary sectional view which shows the thing regarding the return means of a slider, (b) is sectional drawing which follows the XXVb-XXVb line | wire of (a), Comprising: The figure which shows the thing regarding a means, (c) is a fragmentary sectional view which shows the thing regarding the positioning means of a slider, (d) is sectional drawing which follows the XXVd-XXVd line | wire of (a). FIG. 26 is a diagram illustrating a circuit board extraction process subsequent to FIG. 25. FIG. 27 is a diagram illustrating a circuit board extraction process subsequent to FIG. 26; It is a figure which shows the initial state by which a circuit board is pulled out. It is a perspective view which shows the modification of a locking part. It is a figure which shows the state from which a lock part remove | deviates from a notch part, (a) shows the lock part of FIG. 29, (b) has shown the lock part shown in FIG. It is a figure which shows the modification of a guide part, (a) is a fragmentary sectional view, (b) is sectional drawing which follows the XXXIB-XXXIb line | wire of (a).

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following embodiments, common or related elements are given the same reference numerals. Also, the depth direction of the insertion hole provided in the housing of the card edge connector, in which the circuit board is inserted and arranged, is simply the depth direction, and the height direction of the insertion hole of the housing corresponding to the thickness direction of the circuit board is A direction perpendicular to both the height direction, the depth direction, and the height direction is simply referred to as a lateral direction.

(First embodiment)
As shown in FIG. 1, the electronic device 10 includes a card edge connector 11, a circuit board 12, and a case 13 as main parts.

  The card edge connector 11 is a relay member that electrically connects the harness 14 (device outside the electronic device 10 via the harness 14) and the circuit board 12, and as a main part, a housing 20 made of an electrically insulating material, A terminal 30 held by the housing 20 and a slider 40 provided in the insertion hole 21 of the housing 20 so as to be displaceable in the depth direction are provided.

  The housing 20 is formed by, for example, resin injection molding, and has an insertion hole 21 into which the circuit board 12 is inserted. As shown in FIGS. 1 to 3, the insertion hole 21 is provided with a depth that allows the circuit board 12 and the slider 40 to be disposed while opening in the distal end surface 20 a of the housing 20.

  In the present embodiment, the insertion hole 21 is a through hole that penetrates the housing 20 in the depth direction. And the edge part on the opposite side to the front end surface 20a of the insertion hole 21 which penetrates the housing 20 is obstruct | occluded by the waterproof member 22 which consists of rubber | gum, for example. The waterproof member 22 is made of resin, for example, and is sandwiched between the cover 23 and the housing 20 assembled to the housing 20 so as to close one end of the insertion hole 21. Thus, the portion of the insertion hole 21 closer to the distal end surface 20 a in the depth direction than the waterproof member 22 forms the storage space 24 for the slider 40 and the circuit board 12. The waterproof member 22 and the cover 23 correspond to the lid member described in the claims.

  The size of the storage space 24 in the height direction and the horizontal direction has such a size that the slider 40 can be displaced in the displacement region of the slider 40, and the circuit in the region where the circuit board 12 is disposed without the slider 40 being disposed. It is only necessary to have a size that allows the substrate 12 to be disposed. For example, the size may be adjusted to the slider 40 over the entire depth direction (see FIG. 6 to be described later), or as shown in FIGS. 1 and 3, the slider 40 is not disposed and the circuit board 12 is disposed. The height of the area to be moved may be lower than the height of the displacement area of the slider 40. If the slider 40 is not disposed and the height of the region where the circuit board 12 is disposed is lowered, the positional variation in the height direction when the circuit board 12 is inserted into the insertion hole 21 can be reduced.

  The housing 20 has a storage space 25 for storing the harness 14. When the harness 14 is inserted into the storage space 25, the terminal 30 and the harness 14 are electrically connected. Further, a seal member 26 made of, for example, silicon rubber is provided on the outer peripheral surface of the housing 20 in an annular shape along the outer peripheral surface. For this reason, when the housing 20 is fitted into the case 13, the seal member 26 can prevent moisture and the like from entering the internal space of the case 13 from the gap between the inner surface of the case 13 and the outer surface of the housing 20. Although not shown, a fitting portion with the case 13 is provided on the outer peripheral surface of the housing 20.

  In addition, as the housing 20, the structure which makes the one housing 20 is also employable by combining a some housing structural member.

  The terminal 30 is a relay member that is held by the housing 20 and electrically connects the electrode 60 and the harness 14, and is formed using a metal material having good conductivity. For example, phosphor bronze coated with nickel plating and further coated with gold plating can be employed.

  Further, a part of the terminal 30 is press-fitted into a groove (not shown) of the housing 20, and a part including the contact portion 31 with the electrode 60 (land) provided at the end of the circuit board 12 is part of the housing described above. It protrudes into the insertion hole 21 from the holding portion (the insertion hole wall surface 21a in the height direction). The protruding portion 32 protruding into the insertion hole 21 can be spring-deformed with the housing holding portion as a fulcrum, and is provided so that the contact portion 31 contacts the electrode 60 in the spring-deformed state. Moreover, the protrusion part 32 is extended toward the depth direction back | inner side opposite to the front end surface 20a in the insertion hole 21 from the housing holding part. The plurality of terminals 30 (the plurality of protrusions 32) are arranged along the horizontal direction.

  Of the protrusions 32, the contact portion 31 is the farthest part from the insertion hole wall surface 21 a in the height direction where the terminal 30 including the contact portion 31 is held. In the present embodiment, the electrode forming surface of the circuit board 12 provided with the electrode 60 that contacts the contact portion 31 in the height direction as the portion of the protruding portion 32 from the protruding tip to the contact portion 31 is closer to the protruding tip. A taper shape is formed so as to be away from (hereinafter simply referred to as an electrode formation surface of the circuit board 12). On the other hand, the portion of the protruding portion 32 from the contact portion 31 to the housing holding portion is so tapered that the closer to the housing holding portion (corresponding insertion hole wall surface 21a), the farther from the electrode forming surface of the circuit board 12. Yes.

  And the contact part 31 of the terminal 30 contacts the electrode 60 in the state which the protrusion part 32 containing this contact part 31 deformed elastically. Therefore, a stable contact pressure with the electrode 60 of the circuit board 12 can be ensured.

  In particular, in the present embodiment, the protruding portions 32 protrude from the opposing insertion hole wall surfaces 21a in the height direction, and the reaction force (mainly elastic deformation) of the protruding portions 32 located on both sides of the circuit board 12 ( The circuit board 12 is fixed by an urging force. Therefore, the circuit board 12 can be held at the center of the insertion hole 21 in the height direction by the protrusions 32 positioned on both sides.

  Further, the protruding portion 32 has a contact portion 33 that is supported in contact with the slider 40 on the far side in the depth direction from the contact portion 31. The contact portion 33 is inserted until the circuit board 12 is inserted into the insertion hole 21, and the slider 40 pushed by the circuit board 12 is displaced in the depth direction, whereby the slider 40 is disengaged from the slider 40. Is supported by Therefore, the contact portion 33 is supported by the slider 40 before the circuit board 12 is inserted, and the contact portion 33, that is, the terminal 30 is completely detached from the slider 40 after the insertion of the circuit board 12 is completed. Then, the slider 40 is brought into a non-contact state.

  When the contact portion 33 is supported by the slider 40, the protruding portion 32 is expanded toward the insertion hole wall surface 21a side where the terminal 30 having the protruding portion 32 is held. As a result, the contact portion 31 is positioned away from the electrode formation surface of the circuit board 12. In the present embodiment, a portion of the projecting portion 32 within a predetermined range from the projecting tip is the contact portion 33. That is, the slider contact surface of the contact portion 33 has a taper shape that approaches the electrode formation surface as it approaches the tip surface 20a in the depth direction.

  In the present embodiment, the terminal 30 includes a power transmission power terminal 34 and a signal transmission signal terminal 35 having a smaller cross-sectional area than the power terminal 34. In addition, the contact portion of the terminal 30 with the harness 14 is exposed in the storage space 25 that opens on the surface of the housing 20 opposite to the front end surface 20a. Therefore, the circuit board 12 and the harness 14 are electrically connected via the terminal 30 in a state where the harness 14 is inserted into the storage space 25 of the housing 20. In addition, the terminal 30 of the structure integrated with the harness 14 can also be employ | adopted.

  The slider 40 is a member for preventing the contact portion 31 from contacting the circuit board 12 before the contact portion 31 of the terminal 30 contacts the electrode 60 when the circuit board 12 is inserted into the insertion hole 21. is there. Although it does not specifically limit as a constituent material, In order to contact the terminal 30 (contact part 33), it is preferable that a contact part consists of resin. In this embodiment, it is comprised as a resin molding using a metal mold | die.

  The slider 40 is disposed in the depth direction with respect to the contact portion 31 of each terminal 30 in the insertion hole 21. And in the insertion hole 21, it can be displaced in the depth direction by receiving an external force. Specifically, the circuit board 12 is pushed by the circuit board 12 as the circuit board 12 is inserted into the insertion hole 21, and the contact portion 31 contacts the electrode 60 from the initial position before the circuit board 12 is inserted. 12 is provided so as to be displaced in the depth direction to the board insertion completion position where insertion of 12 is completed.

  In the initial position, the slider 40 supports the contact portion 33 in a state where the protruding portion 32 of the terminal 30 is expanded. Thereby, the contact part 31 is hold | maintained in the position (position which does not contact an electrode formation surface) away from the corresponding electrode formation surface of the circuit board 12. FIG. In other words, the slider 40 is held at the initial position by the reaction force of the spring deformation of the protrusion 32.

  Further, at the board insertion completion position, the slider 40 is pushed to a position where the contact portion 33 of the terminal 30 cannot be supported. For this reason, the contact portion 31 of the terminal 30 that is not supported by the slider 40 applies a reaction force due to spring deformation to the circuit board 12 via the contact portion 31 that contacts the electrode 60.

  In the present embodiment, the slider 40 has a shape that is long in the horizontal direction as shown in FIG. 4 in order to support the contact portions 33 of all the terminals 30 arranged in the horizontal direction. In addition, a predetermined portion from the end portion on the distal end surface 20 a side is a support portion 41 that supports the contact portion 33. And the support surface 41a of the contact part 33 in the support part 41 has the taper shape which approaches an electrode formation surface, so that it is near the front end surface 20a in the depth direction. The end surface 20a side end of the support surface 41a is closer to the corresponding electrode forming surface than the tip of the protruding portion of the terminal 30 that is not supported by the slider 40, and the depth direction of the support surface 41a. The end on the far side is located farther from the corresponding electrode forming surface than the tip of the protruding portion of the terminal 30 that is not supported by the slider 40. In other words, the length (thickness) along the height direction of the support portion 41 of the slider 40 is thicker than the circuit board 12 at the end on the tip end surface 20a side, and between the tips of the protrusions of the terminals 30 that make a pair. It is shorter than the distance. Moreover, it is longer than the distance between the front-end | tip parts of the protrusion part of the terminal 30 which makes a pair in the edge part of the depth direction back side.

  The slider 40 described above can be disposed in the insertion hole 21 by the method described below. The slider 40 is inserted into the insertion hole 21 from the end side opposite to the distal end surface 20a with respect to the housing 20 to which the terminal 30 is press-fitted and fixed. At this time, when the slider 40 is displaced in the depth direction toward the tip surface 20 a, the tip of the support portion 41 enters the contact portion 33. Then, by further displacing the slider 40 toward the distal end surface 20a, the slider 40 can be disposed at the initial position while the support portion 41 contacts the contact portion 33 and expands the protruding portion 32. Further, the slider 40 is held at the initial position by a reaction force due to the spring deformation of the protruding portion 32 of the terminal 30.

  As described above, when the insertion hole 21 is a through hole, the slider 40 is inserted into the insertion hole 21 from the side opposite to the distal end surface 20a, so that it protrudes into the insertion hole 21 from the housing holding portion and moves deeper in the depth direction. A structure in which the contact portion 33 of the projecting portion 32 extending toward the support portion 33 is supported by the slider 40 can be easily formed. Moreover, since the slider 40 is inserted and arranged from the depth direction rear side of the contact part 31 of the terminal 30, damage to the contact part 31 can also be suppressed. After the slider 40 is inserted and disposed, the end of the insertion hole 21 opposite to the distal end surface 20a is closed by the lid member (waterproof member 22 and cover 23), thereby protecting the terminal 30 and the slider 40. can do.

  The circuit board 12 has electrodes 60 on both sides thereof. For this reason, the electrical connection path | route by the card edge connector 11 can be increased efficiently compared with the circuit board 12 of a single-sided electrode structure. It is to be noted that a configuration is adopted in which the circuit board 12 is fixed by a terminal 30 located on one side of the circuit board 12 and a support part that is located on the other side of the circuit board 12 and does not apply a reaction force due to spring deformation. You can also.

  Further, the electrodes 60 of the circuit board 12 are provided in a plurality of rows in the depth direction, and are shifted in the lateral direction for each row. Specifically, as shown in FIGS. 5A and 5B, the two rows of electrodes 60a and 60b are arranged in a so-called zigzag pattern by shifting the positions in the horizontal direction. Then, as the plurality of terminals 30, the terminals 30 having different lengths of the protrusions 32 corresponding to the plurality of rows of electrodes 60 (60 a, 60 b) are the same type as the number of columns of the electrodes 60 (60 a, 60 b). The contact portion 33 of each terminal 30 is supported by the slider 40 at the same position in the depth direction at the initial position of the slider 40. By adjusting the length of the protruding portion 32 in the terminal 30 as described above, the shape of the slider 40 can be simplified. 5A and 5B, only the protruding portion 32 of the terminal 30 is shown for convenience.

  The case 13 has a bag shape and accommodates the housing 20 together with the circuit board 12 in a depth direction to a position deeper than the displaceable range of the slider 40 in the depth direction. The case 13 may be composed of only one member, or may be configured by combining a plurality of members.

  Next, the operation of inserting the circuit board 12 into the card edge connector 11 will be described.

  As shown in FIG. 6A, in the state of the initial position before the slider 40 is pushed by the circuit board 12 and displaced in the depth direction, the contact portion 33 of each terminal 30 is supported by the slider 40. The protruding portion 32 is expanded and the contact portion 31 is located away from the corresponding electrode forming surface of the circuit board 12. Thereby, at least until the circuit board 12 passes through the contact part 31 and contacts the slider 40, the contact part 31 can be prevented from contacting the circuit board 12. Further, until the circuit board 12 comes into contact, the slider 40 is held at the initial position by the reaction force of the spring deformation of the protruding portion 32.

  When the circuit board 12 is inserted in the depth direction from the state shown in FIG. 6A, the circuit board 12 reaches the support 41 side end of the slider 40. When the circuit board 12 is further inserted, the slider 40 is pushed by the circuit board 12 and the slider 40 is displaced together with the circuit board 12. At this time, the contact portion 33 is displaced along the tapered support surface 41 a and is displaced toward the end portion of the support portion 41 on the front end surface 20 a side as the slider 40 is displaced. That is, the contact portion 33 is gradually detached from the support portion 41. For this reason, the contact portion 31 of the terminal 30 gradually approaches the corresponding electrode formation surface of the circuit board 12 in the height direction.

  In the present embodiment, as shown in FIG. 6B, the contact portion 31 of the terminal 30 is connected to the circuit board in a state where the end portion on the insertion tip side of the electrode 60 of the circuit board 12 has reached the contact portion 31 of the terminal 30. 12 corresponding electrode forming surfaces (ie, electrode 60) are contacted.

  Further, when the circuit board 12 is inserted and the slider 40 is pushed by the circuit board 12, the contact portion 33 of the terminal 30 is completely detached from the slider 40 as shown in FIG. That is, it will be in a non-contact state. Then, the board insertion is completed in a state where the contact portion 31 of the terminal 30 is positioned substantially at the center of the electrode 60 of the circuit board 12. At this point, the slider 40 is at the substrate insertion completion position described above.

  As described above, in this embodiment, the contact portion 33 of each terminal 30 is supported by the slider 40 in the state of the initial position, and the protruding portion 32 is expanded, so that the contact portion 31 extends from the corresponding electrode formation surface of the circuit board 12. Held in a distant position. For this reason, it is possible to prevent the contact portion 31 from contacting the circuit board 12 until at least the circuit substrate 12 passes through the contact portion 31 and contacts the slider 40. And the electrical connection reliability can be improved by suppressing the short circuit due to the peeling of the plating on the surface of the terminal, the deformation of the terminal, and the peeling of the plating scraps.

  Further, the contact portion 33 of the terminal 30 is completely detached from the slider 40 in a state where the slider 40 is displaced to the substrate insertion completion position. When the terminal 30 is detached from the slider 40 as described above, the load due to the spring deformation is not applied to the slider 40, so that the contact portion 31 can be stably brought into contact with the electrode 60 by the reaction force due to the spring deformation of the terminal 30. it can. That is, electrical connection reliability can be improved.

  Further, the terminal 30 is completely detached from the slider 40 in a state where the contact portion 31 is in stable contact with the electrode 60, that is, in a state where the slider 40 is at the substrate insertion completion position. Therefore, since there is no influence of the vibration of the protrusion 32 with the slider 40 as a fulcrum or the displacement of the protrusion 32 in the height direction due to the creep phenomenon of the slider 40, the contact portion 31 and the electrode 60 can be controlled while suppressing the spring force. The fluctuation of the contact pressure can also be suppressed. As a result, it is possible to further suppress short-circuiting due to peeling of plating on the surface of the terminal, deformation of the terminal, peeling-off of plating scraps, and the like.

  Next, the relationship between the displacement amount of the slider 40 and the reaction force (spring load) due to the spring deformation of the terminal 30 will be described. 7A to 7C, the load applied to the slider 40 is indicated by a solid line, and the load applied to the circuit board 12 is indicated by an alternate long and short dash line. Further, A0 indicates a state in which the displacement of the slider 40 is zero, that is, an initial position, and A3, A5, and A7 each indicate a state of a substrate insertion completion position.

  In the present embodiment, the support surface 41a that supports the contact portion 33 of the slider 40 and the slider contact surface of the contact portion 33 have opposing taper shapes. For this reason, when the contact portion 31 of the terminal 30 is the position farthest from the electrode formation surface of the circuit board 12 in the height direction when the slider 40 is in the initial position, until the contact with the electrode 60 from the initial position state, With the displacement of the slider 40 toward the back in the depth direction, the electrode formation surface of the circuit board 12 is approached.

  For this reason, as shown in FIG. 7A, between the point A0 where the amount of displacement is zero and the point A1 where the contact portion 31 of the terminal 30 contacts the electrode formation surface (electrode 60) of the circuit board 12, The load (spring load) applied to the slider 40 gradually decreases. Further, the load (spring load) applied to the slider 40 gradually decreases until the point A2 at which the contact portion 33 is completely removed from the slider 40.

  On the other hand, in the comparative example in which the contact portion 33 and the support surface 41a extend along the depth direction, as shown in FIG. 7B, the contact portion 31 of the terminal 30 is connected to the circuit from the point A0 where the displacement amount is zero. While contacting the electrode forming surface (electrode 60) of the substrate 12, the load (spring load) applied to the slider 40 hardly changes until the point A4 at which the contact portion 33 is completely removed from the slider 40. Therefore, according to the present embodiment, it is possible to reduce a load (impact) applied to the circuit board 12 suddenly (instantaneously) when the terminal 30 is detached from the slider 40.

  Further, in the present embodiment, as shown in FIG. 7A, the electrode 60 having a predetermined width in the depth direction at the point A1 before the point A2 where the contact portion 33 of the terminal 30 is completely removed from the slider 40. The contact portion 31 is placed on one part and the surface of the electrode 60 and the contact portion 31 of the terminal 30 are wiped until the substrate insertion completion position is reached.

  In the above configuration, the reaction force (spring load) of spring deformation is distributed not only to the slider 40 but also to the circuit board 12 from the time A1 when the contact portion 31 of the terminal 30 is placed on the electrode 60. Further, the load applied to the circuit board 12 gradually increases as the load applied to the slider 40 gradually decreases. For this reason, the reduction degree of the load applied to the slider 40 with respect to the displacement amount of the slider 40 is large, and the load applied to the slider 40 is greatly reduced when the terminal 30 is completely removed from the slider 40.

  On the other hand, although the configuration of FIG. 7B, the support surface 41a that supports the contact portion 33 of the slider 40, and the slider contact surface of the contact portion 33 have opposing taper shapes, In the configuration in which the contact portion 31 of the terminal 30 is in contact with the electrode forming surface (electrode 60) of the circuit board 12 and the contact portion 33 is completely removed from the slider 40 (see FIG. 7C), FIG. Compared to the configuration, the degree of decrease in the load applied to the slider 40 with respect to the amount of displacement of the slider 40 is small. Therefore, according to the present embodiment, it is possible to more effectively reduce the load (impact) applied suddenly (instantaneously) to the circuit board 12.

  Further, by slightly sliding the contact portion 31 with respect to the surface of the electrode 60, the insulating film on the surface of the electrode 60 can be broken, or the wiping distance for removing foreign matter on the surface can be earned.

  In particular, in the present embodiment, since the support surface 41a that supports the contact portion 33 of the slider 40 and the slider contact surface of the contact portion 33 have opposing taper shapes, the slider 40 (support surface 41a) and the terminal The terminal is easy to move on the slider 40 in a state where 30 (contact surface) is in contact. Thereby, for example, the force required when inserting the circuit board 12 can be reduced. If at least one of the support surface 41a that supports the contact portion 33 of the slider 40 and the slider contact surface of the contact portion 33 has a taper shape that approaches the electrode formation surface as the tip surface 20a is closer in the depth direction. The above effects can be achieved.

(Modification)
At least one of the support surface 41a of the slider 40 and the slider contact surface of the contact portion 33 may not have the above tapered shape. Alternatively, the board insertion may be completed immediately after the contact portion 33 of the terminal 30 is completely removed from the support surface 41a of the slider 40.

  In a configuration in which the electrodes 60 of the circuit board 12 are provided in a plurality of rows in the depth direction and are shifted in the horizontal direction for each row, as shown in FIGS. The terminals 30 may have a structure in which the lengths of the protruding portions 32 are all equal, and the positions at which the contact portions 33 of the slider 40 are supported differ for each row of the electrodes 60 (60a, 60b) in the depth direction. FIGS. 8A and 8B correspond to FIGS. 5A and 5B. Thus, when the length is adjusted on the slider 40 side, the same terminal 30 can be used even if the columns are different. In the case of the configuration shown in FIG. 8, the slider 40 protrudes according to the position of the electrode 60 (60a, 60b), and the protruding portion of the slider 40 (support for supporting the contact portion 33 of the terminal 30 corresponding to the electrode 60b) is supported. The groove 41 (see the broken line in FIG. 8B) for accommodating the circuit board 12 is provided in the portion 41).

  Further, as shown in FIG. 9, the housing 20 has a protective wall portion 27 provided next to the contact portion 31 in the lateral direction, and the protective wall portion 27 is at the initial position of the slider 40 in the height direction. It may be configured to extend to a position closer to the electrode formation surface than the contact portion 31 while being separated from the electrode formation surface of the circuit board 12 so as to cover the contact portion 31. According to this, when the circuit board 12 is inserted, when the circuit board 12 passes through the contact portion 31 of the terminal 30, the circuit board 12 is warped or the position of the circuit board 12 varies in the height direction. In addition, the protective wall portion 27 can prevent the circuit board 12 from coming into contact with the contact portion 31. That is, electrical connection reliability can be improved. Further, the warp of the circuit board 12 can be corrected by the protective wall portion 27.

  In particular, in FIG. 9, the protective wall portion 27 is provided from a position closer to the tip surface 20 a than the contact portion 31 in the depth direction, and the facing surface 27 a to the electrode formation surface of the circuit board 12 is closer to the depth direction. It has a tapered shape that approaches the electrode formation surface. With such a configuration, when the circuit board 12 is inserted into the insertion hole 21, the circuit board 12 can be guided (guided) to a desired position in the height direction by the protective wall portion 27. That is, positioning in the height direction can be performed.

  Further, as shown in FIGS. 10A and 10B, the slider 40 corresponds to each contact portion 33, and the bottom surfaces of the plurality of groove portions 42 provided on the support portion 41 of the slider 40 are connected to the contact portion 33. The support surface 41a may be used. According to this, for example, when the slider 40 is assembled to the housing 20 (when the card edge connector 11 is formed) so that the contact portion 33 of the terminal 30 is placed on the slider 40, the contact between the terminals 30 adjacent in the lateral direction. It can suppress that the part 33 contacts mutually and peeling of a plating layer, a deformation | transformation of the terminal 30, etc. arise.

(Second Embodiment)
In this embodiment, in addition to the configuration shown in the first embodiment, as a positioning means for determining at least the initial position of the slider 40, a convex portion provided on one side of the housing 20 including the slider 40 and the terminal 30 so as to be elastically deformable. The main feature is that the concave portion that fits the convex portion is provided on the other side, and at least the slider 40 is in the initial position so that the convex portion fits into the concave portion.

  11A to 11C show a schematic configuration of the card edge connector 11 (electronic device 10) according to the present embodiment. For convenience, the case 13 is not shown. Further, in FIG. 11B, the housing 20 is a cross-sectional view cut along a plane passing through the two-stage through holes 28 (28a, 28b) constituting the positioning means, and a slider positioned in the insertion hole 21 of the housing 20 40 is a plan view. As shown in FIGS. 11A to 11C, a through hole 28 serving as a recess is provided through the housing 20 while opening in a lateral insertion hole wall surface 21 b of the housing 20. As shown in FIGS. 11B and 11C, the through hole 28 is provided in two stages along the depth direction, and the first through hole 28a close to the distal end surface 20a is provided as a slider. The initial position 40 and the second through-hole 28b correspond to the substrate insertion completion position.

  On the other hand, the first arm portion 43 as a convex portion protrudes from the slider main body portion 40a. The slider main body 40a corresponds to the slider 40 described in the first embodiment and the slider described in the claims. The first arm portion 43 extends from the slider main body portion 40a toward the distal end surface 20a in the depth direction, and is provided with a spring portion 43a that is elastically deformable in the lateral direction, and extends outward in the lateral direction from the spring portion 43a. It has the lock part 43b which fits. The other configuration is the same as that shown in the first embodiment.

  Next, the operation of inserting the circuit board 12 into the card edge connector 11 will be described.

  FIG. 12A shows the initial position before the circuit board 12 contacts the slider body 40a (slider 40). In this state, the lock portion 43b of the first arm portion 43 is fitted in the first-stage through hole 28a, so that the slider main body portion 40a is securely held at the initial position. In this initial position, although not shown, the contact portion 33 of each terminal 30 is supported by the slider body 40a and the protruding portion 32 is expanded and the contact portion 31 is connected to the circuit board 12 as in the first embodiment. The position is away from the corresponding electrode forming surface.

  When the circuit board 12 is inserted in the depth direction from the state shown in FIG. 12A, the circuit board 12 reaches the slider main body 40a. When the circuit board 12 is further inserted, the slider body 40a is pushed by the circuit board 12, and the slider body 40a is displaced together with the circuit board 12. Due to the displacement of the slider body 40a, the spring portion 43a of the first arm portion 43 is bent (elastically deformed), and the lock portion 43b is removed from the through hole 28a as shown in FIG.

  Further, when the circuit board 12 is inserted and the slider 40 is pushed by the circuit board 12, the lock part 43b of the first arm part 43 is fitted into the second through-hole 28b as shown in FIG. Maru. Thereby, the slider main body 40a is securely held at the board insertion completion position. In the state of the substrate insertion completion position, although not shown, the contact portion 33 of the terminal 30 is completely detached from the slider main body 40a as in the first embodiment. That is, it will be in a non-contact state. Then, the contact portion 31 of the terminal 30 is located at the approximate center of the electrode 60 of the circuit board 12.

  Thus, in the present embodiment, the lock portion 43b is fitted into the through hole 28a with the slider main body portion 40a in the initial position. Thus, the initial position of the slider main body 40a is determined by the fitting of the convex portion and the concave portion. Therefore, compared to the configuration in which the slider 40 is held at the initial position only by the reaction force of the spring deformation of the protruding portion 32, the positional variation (variation of the initial position) of the slider main body portion 40a is suppressed, and the contact portion 31 and the electrode The reliability of electrical connection with 60 can be improved.

  In particular, in the present embodiment, the lock body 43b is fitted in the first-stage through hole 28a with the slider body 40a in the initial position, and the second-stage through with the slider body 40a in the substrate insertion completion position. The lock part 43b fits into the hole 28b. Thus, the board insertion completion position of the slider body 40a is also determined by the fitting of the convex part and the concave part. Therefore, the variation in the board insertion completion position of the slider main body 40a can be suppressed, and the electrical connection reliability between the contact 31 and the electrode 60 can be further improved.

  In the present embodiment, since the through hole 28 penetrating the housing 20 is a recess, the recess can also be formed when the housing 20 is collectively formed by resin molding using a mold.

  In the present embodiment, the waterproof member 22 (and the cover 23) disposed in the insertion hole 21 serves as a stopper that prevents the slider body 40a from being displaced in the depth direction from the substrate insertion completion position. Fulfills the function. Therefore, even if the circuit board 12 is pushed too far in the depth direction and the slider 40 cannot be held at the board insertion completion position only by fitting the convex part and the concave part, the waterproof body 22 has a slider body. Since the portion 40a stops, the slider 40 can be held at the substrate insertion completion position. Further, since the waterproof member 22 (and the cover 23) also serves as a stopper, the number of parts can be reduced.

(Modification)
In the above example, the convex portion is provided on the slider 40 and the concave portion is provided on the housing 20, but the concave portion may be provided on the slider 40 and the convex portion may be provided on the housing 20.

  As shown in FIG. 13, the through hole 28 as a recess may be provided in the insertion hole wall surface 21 a in the height direction in the housing 20. In this case, the spring portion 43a of the first arm portion 43 is provided so as to be elastically deformable in the height direction.

  In the above example, the example in which the initial position of the slider 40 (slider body 40a) and the board insertion completion position are both determined is shown. On the other hand, as shown in FIGS. 14A and 14B, the terminal 30 has a convex portion 36 as a part of the contact portion 33, and the slider 40 has a concave portion 44 on the support surface 41 a of the contact portion 33. You may do it. According to this, the initial position of the slider 40 can be determined by fitting the convex portion 36 of the terminal 30 into the concave portion 44 provided in the slider 40. The configuration shown in FIGS. 14A and 14B corresponds to FIGS. 10A and 10B shown in the first embodiment.

  In the above example, the waterproof member 22 has shown an example of functioning as a stopper that prevents the slider main body 40a from being displaced further in the depth direction than the board insertion completion position. That is, the example using the stopper of a member different from the housing 20 was shown. However, as shown in FIG. 15, as a part of the insertion hole wall surface (21 a or 21 b) of the housing 20, there is a stopper 29 that prevents the slider body 40 a from being displaced deeper in the depth direction than the substrate insertion completion position. It may be configured. According to this, the number of parts can also be reduced.

  On the other hand, as shown in FIG. 16, the stopper 70 that prevents the slider body 40 a from being displaced in the depth direction from the initial position in the insertion hole 21 of the housing 20 causes the displacement of the circuit board 12. It may be provided so as not to interfere. For example, when the slider 40 is inserted into the insertion hole 21 from the side opposite to the distal end surface 20a, the slider 70 is pushed too much and the stopper 70 is not able to be held at the initial position only by fitting the convex portion and the concave portion. Since the slider main body 40a stops, the slider 40 can be held at the initial position. In the example shown in FIG. 16, a part of the inner wall of the housing 20 is a stopper 70 that protrudes from the surroundings.

(Third embodiment)
The electronic device 10 according to the present embodiment is mainly characterized by having the following configuration.

  Similar to the above embodiment, in this embodiment, the protruding portion 32 of the terminal 30 is tapered such that the portion from the tip to the end on the contact portion 31 side of the contact portion 33 is separated from the corresponding electrode forming surface as the tip is closer. Has a shape.

  Although not shown, the protrusion 32 is completely separated from the slider 40, and the tip of the protrusion 32 is farther from the corresponding electrode forming surface than the end on the tip surface 20 a side of the support surface 41 a of the slider 40. Position.

  In addition, in this embodiment, when the circuit board 12 is pulled out from the insertion hole 21, there is provided return means for returning the slider 40 to the initial position with the displacement of the circuit board 12. Other configurations are the same as those shown in the first embodiment or the configuration shown in the second embodiment.

  17 to 19 show a schematic configuration of the electronic device 10 according to the present embodiment. FIG. 17 is a partial cross-sectional view for illustrating the positional relationship between the positioning means and the return means in the electronic apparatus 10. In order to show the positional relationship as described above, the housing 20 is a cross-sectional view cut along a plane passing through the two-stage through holes 28 (28a, 28b) constituting the positioning means, and is positioned in the insertion hole 21 of the housing 20. The slider 40 and the circuit board 12 are plan views. For convenience, the case 13 is not shown. 17 to 19, the electronic device 10 according to the present embodiment is obtained by adding the main characteristic configuration according to the present embodiment to the electronic device 10 (see FIG. 11) illustrated in the second embodiment. ing.

  In the present embodiment, the return means includes a notch 61 provided at the lateral end of the circuit board 12 and a second arm protruding from the slider body 40a (corresponding to the slider 40 of the first embodiment). It is comprised by the part 45 and the guide part 71a provided in the insertion hole wall surface 21b of the horizontal direction in the housing 20. As shown in FIG. The notches 61 are provided at both lateral ends of the circuit board 12.

  The second arm portion 45 is disposed in the insertion hole 21 of the housing 20 together with the slider main body portion 40a. Then, the slider 40 extends from the slider 40 to the tip surface 20a side at a position not in contact with the circuit board 12 and is elastically deformable, and extends from the spring part 45a to the circuit board 12 side. It has the lock part 45b which fits in the notch part 61 in the state of a position.

  In the present embodiment, the second arm portion 45 is formed by punching one metal plate into a predetermined shape and bending it. And the holding | maintenance part 45c is inserted in the groove part opened to the horizontal direction end surface of the slider main body part 40a which is a resin molding, and is fixed to the slider main body part 40a in this insertion state. As a fixing method, press fitting, adhesion, insert molding, or the like can be employed.

  The spring portion 45a extends from the holding portion 45c toward the distal end surface 20a in the depth direction. The lock portion 45b extends from the vicinity of the end portion of the spring portion 45a on the distal end surface 20a side to the circuit board 12 side in the lateral direction. In the present embodiment, when the circuit board 12 is inserted / removed, the lock portion 45b is laterally outward from the formation region of the electrode 60 in the circuit board 12 (corresponding insertion in the horizontal direction) so as not to contact the surface of the electrode 60. (Near the hole wall surface 21b).

  The lock portion 45b includes a first side portion 46a having a facing surface 47 that faces the end surface 12a of the circuit board 12 when the circuit board 12 is inserted (see FIG. 20B described later), The lock part 45b has a second side part 46b extending from the end part in the depth direction in the side part 46a to the side where the lock part 45b is displaced in the height direction when the circuit board 12 is pulled out. In the present embodiment, the first side portion 46a and the second side portion 46b are substantially L-shaped so as to form a substantially vertical positional relationship. Further, the corner 46c between the first side 46a and the second side 46b has a rounded shape as shown in FIG.

  The guide portion 71a is provided on the side of the distal end surface 20a with respect to the spring portion 45a in the state where the board is completed so as to face the spring portion 45a in the depth direction on the wall surface 21b of the insertion hole in the horizontal direction in the housing 20. And the taper shape which has approached the insertion hole wall surface 21a of the height direction which opposes the one surface 12b of the circuit board 12 is comprised, so that the opposing surface with the spring part 45a is near the front end surface 20a in the depth direction. Note that the one surface 12 b of the circuit board 12 may be any of both surfaces of the circuit board 12, and refers to the surface on which the second arm portion 45 is placed when the circuit board 12 is inserted and removed.

  In the present embodiment, of the groove portions 71 provided in the lateral insertion hole wall surface 21b in the housing 20, the groove wall surface on the distal end surface 20a side in the depth direction is a surface facing the spring portion 45a in the guide portion 71a. Yes. In the lateral direction, a part of the second arm portion 45 (mainly the spring portion 45a) is disposed in the groove 71.

  In the present embodiment, the slider 40 positioning means is provided together with the slider 40 return means. That is, the slider 40 has the first arm portion 43 together with the second arm portion 45. Moreover, the 1st arm part 43 and the 2nd arm part 45 are integrally formed using the same material. Specifically, as shown in FIG. 18, the spring portion 43a of the first arm portion 43 extends from the middle of the spring portion 45a of the second arm portion 45 exposed from the slider main body portion 40a. And a protruding item | line is provided in a part of spring part 43a, and this protruding item | line part becomes the lock part 43b.

  Further, the spring portion 45a of the second arm portion 45 has a plate thickness direction of the metal plate along the height direction, and the spring portion 43a of the first arm portion 43 has a plate thickness direction of the metal plate in the lateral direction. It has become. Accordingly, the spring portion 45a of the second arm portion 45 can be elastically deformed in the height direction, and the spring portion 43a of the first arm portion 43 can be elastically deformed in the lateral direction.

  Next, an insertion operation and a drawing operation of the circuit board 12 with respect to the card edge connector 11 will be described with reference to FIGS. 20 to 24 are diagrams for explaining the insertion operation, and FIGS. 25 to 28 are diagrams for explaining the extraction operation. 20A is a partial cross-sectional view corresponding to FIG. 17, and shows a part relating to the return means among the positioning means and the return means of the slider 40, and FIG. It is sectional drawing which follows the XXb-XXb line | wire, Comprising: The figure which shows a thing regarding a return means, (c) is a fragmentary sectional view corresponding to FIG. 17, Comprising: Positioning means among the positioning means and return means of the slider 40 The figure which shows the thing regarding (d) is sectional drawing which follows the XXd-XXd line | wire of (a). (A)-(d) has shown the same timing. The other FIGS. 21 to 28 are the same as FIG.

  20A to 20D show a state until the circuit board 12 comes into contact with the lock part 45b of the second arm part 45 when the circuit board 12 is inserted into the insertion hole 21. FIG.

  In this state, as shown in FIG. 20 (d), the contact portion 33 of each terminal 30 is supported on the support surface 41a of the slider main body portion 40a, the protruding portion 32 is expanded, and the contact portion 31 is connected to the circuit board 12. The position is away from the corresponding electrode forming surface. On the other hand, the slider main body 40a receives a reaction force of spring deformation of the protrusion 32. Further, as shown in FIG. 20C, the lock portion 43 b of the first arm portion 43 is fitted in the first-stage through hole 28 a provided in the housing 20. In the present embodiment, the slider main body 40a is held at the initial position by the reaction force of the spring deformation of the protrusion 32 and the fitting of the through hole 28a of the lock portion 43b.

  The second arm portion 45 is positioned with the tip of the spring portion 45 a contacting the guide portion 71 a of the housing 20 in a state where the slider main body portion 40 a is held at the initial position. In this positioning state, the spring portion 45a is disposed away from the imaginary line CL passing through the center of the insertion hole 21 in the height direction as it moves away from the slider main body portion 40a (as it approaches the distal end surface 20a). In addition, the first side 46a of the lock 45b has an insertion hole 21 in the height direction as the surface 47 opposite to the direction in which the second side 46b extends from the first side 46a is further away from the slider body 40a. It is arranged away from an imaginary line CL that passes through the center of. And it inclines with respect to the depth direction so that the end surface 12a of the circuit board 12 inserted from the front end surface 20a may be opposed. Thus, the opposing surface 47 facing the end surface 12a of the circuit board 12 is disposed closer to the insertion hole wall surface 21a in the height direction as it approaches the tip surface 20a in the depth direction. Further, the facing surface 47 of the first side portion 46 a extends over the one surface 12 b with the end portion on the front end surface 20 a side of the housing 20 on the one surface 12 b of the circuit board 12.

  Further, the second side portion 46b of the lock portion 45b is a surface on the back side in the depth direction, and is fitted on the notch portion 61 of the circuit board 12 and is located on the back side in the depth direction of the notch portion 61. The facing surface 48 that faces the wall surface is arranged so as to approach the virtual line CL passing through the center of the insertion hole 21 in the height direction as the distance from the slider main body 40a increases. And it inclines with respect to the depth direction. Thus, the opposing surface 48 of the second side portion 46b is located on the far side in the depth direction and closer to the first side portion 46a as it is closer to the end opposite to the first side portion 46a in the depth direction. The end portion of the circuit board 12 is on one surface 12b of the circuit board 12 and straddles the first surface 12b.

  21A to 21D show a state in which when the circuit board 12 is inserted, the circuit board 12 comes into contact with the lock part 45b of the second arm part 45, and the lock part 45b is placed on one surface of the circuit board 12. Indicates.

  In this state, since the slider main body 40a is not pushed by the circuit board 12, the terminal 30, the slider main body 40a, and the first arm 43 are not changed.

  On the other hand, as described above, the lock portion 45b of the second arm portion 45 is disposed such that the facing surface 47 of the first side portion 46a is inclined with respect to the depth direction (in other words, the one surface 12b of the circuit board 12). . For this reason, when the corner part of the end surface 12a of the circuit board 12 contacts the opposing surface 47 of the lock part 45b and the lock part 45b receives a force in the depth direction, the spring part 45a is pushed and expanded in the height direction. Then, the lock portion 45 b is placed on the one surface 12 b of the circuit board 12. That is, the tip of the spring portion 45 a and the lock portion 45 b approach the insertion hole wall surface 21 a that faces the one surface 12 b of the circuit board 12. The spring portion 45a rotates around the holding portion 45c held by the slider main body portion 40a in accordance with the displacement of the lock portion 45b, and its tip is separated from the guide portion 71a.

  22 (a) to 22 (d) show a state immediately after the circuit board 12 contacts the slider main body 40a when the circuit board 12 is inserted, that is, the lock part 45b fits into the notch 61. Shows the state before full.

  The lock portion 45 b of the second arm portion 45 is displaced while being in contact with the one surface 12 b of the circuit board 12 until it fits into the notch portion 61. When the circuit board 12 (end surface 12a) comes into contact with the slider body 40a, the circuit board 12 (end surface 12a) tries to fit into the notch 61. However, since the tip of the spring part 45a contacts the guide part 71a, not all of the lock part 45b is arranged in the notch part 61 at this point.

  23 (a) to 23 (d), when the circuit board 12 is inserted, the circuit board 12 is displaced while pushing the slider main body 40a in the depth direction, and the lock part 45b of the second arm part 45 is cut. The state which fits in the notch part 61 is shown.

  Exceeding the force that holds the slider body 40a in the initial position (in this embodiment, the reaction force of the spring deformation of the protrusion 32 and the fitting force of the through hole 28a of the lock portion 43b), the slider body 40a is removed from the circuit board 12. When the force is received, the slider body 40a is also displaced in the depth direction along with the circuit board 12.

  At this time, the first arm portion 43 and the second arm portion 45 are also displaced together with the slider main body portion 40a. Accordingly, as shown in FIG. 23C, the lock portion 43b of the first arm portion 43 is disengaged from the through hole 28a while the spring portion 43a is elastically deformed in the lateral direction. Further, along with the displacement of the slider main body 40a, the tip of the spring portion 45a is displaced in the direction approaching the imaginary line CL along the inclination of the guide portion 71a, whereby the lock portion 45b is fitted into the notch portion 61.

  Further, as shown in the first embodiment, the contact of the contact portion 33 with respect to the support surface 41 a of the slider 40 is gradually reduced, and the contact portion 31 of the terminal 30 gradually approaches the electrode formation surface of the circuit board 12. In the present embodiment, when the lock portion 45 b of the second arm portion 45 is fitted into the notch portion 61, the contact portion 31 contacts the electrode forming surface of the circuit board 12, specifically the end portion of the electrode 60. It has become.

  24A to 24D show a state where the insertion of the circuit board 12 is completed.

  When the circuit board 12 is further pushed in from the state of FIG. 23, the first arm portion 43 and the second arm portion 45 are displaced together with the slider main body portion 40a. Then, as shown in FIG. 24C, the lock portion 43b of the first arm portion 43 is fitted into the second-stage through hole 28b, and the slider main body portion 40a is locked at the substrate insertion completion position. On the other hand, as shown in FIG. 24B, the tip of the spring portion 45a moves away from the guide portion 71a with the displacement of the slider main body portion 40a.

  Further, as the slider body 40a is displaced in the depth direction, the contact portion 33 of the terminal 30 is completely detached from the slider 40 as shown in FIG. Then, the contact portion 31 of the terminal 30 wipes the surface of the electrode 60, and the board insertion is completed in a state where the contact portion 31 of the terminal 30 is positioned substantially at the center of the electrode 60.

  FIGS. 25A to 25D show a state immediately after the tip of the spring portion 45a of the second arm portion 45 comes into contact with the guide portion 71a when the circuit board 12 is pulled out.

  When the circuit board 12 is pulled out from the board insertion completion state, the rear side end part (opposing surface 48 of the second side part 46b) of the lock part 45b of the second arm part 45 is located at the back side of the notch part 61 in the circuit board 12. The slider main body 40a is displaced together with the circuit board 12 while being pushed by the wall surface and pulled by the second arm portion 45. The second arm portion 45 receives external force only from the circuit board 12 until the spring portion 45a contacts the guide portion 71a. Therefore, as shown in FIG. 25B, the spring portion 45a extends in the depth direction until the moment when the spring portion 45a contacts the guide portion 71a.

  On the other hand, the first arm portion 43 is displaced together with the slider main body portion 40a. Accordingly, as shown in FIG. 25C, the lock portion 43b of the first arm portion 43 is disengaged from the through hole 28b while the spring portion 43a is elastically deformed in the lateral direction.

  Further, the protruding portion 32 of the terminal 30 has the above-described taper shape, and the tip thereof is open from the end on the tip surface side of the slider main body 40a. Therefore, as shown in FIG. 25 (d), when the slider main body 40 a is displaced, the end of the slider main body 40 a on the front end face side is pulled into the front end of the protrusion 32. At this point, as in FIG. 23 (d), the contact portion 31 of the terminal 30 is in contact with the end portion of the electrode 60, in other words, on the verge of coming off from the corresponding electrode forming surface of the circuit board 12.

  FIGS. 26A to 26D show that when the circuit board 12 is pulled out, immediately after the lock portion 43b of the first arm portion 43 is fitted into the first-stage through hole 28a, that is, the slider main body portion 40a is in the initial position. The state immediately after becoming.

  When the circuit board 12 is further pulled out from the state in which the tip of the spring portion 45a of the second arm portion 45 is in contact with the guide portion 71a, the spring portion 45a is moved along the inclination of the guide portion 71a as shown in FIG. The tip is displaced upward, that is, toward the insertion hole wall surface 21 a facing the one surface 12 b of the circuit board 12. As a result, the lock portion 45 b is displaced in a direction in which the lock portion 45 b is detached from the notch portion 61. In the state of the initial position shown in FIG. 26B, as in FIG. 20B, the facing surface 47 of the first side portion 46a is inclined with respect to the depth direction so as to face the end surface 12a of the circuit board 12. The circuit board 12 straddles the one surface 12b.

  Further, the protruding portion 32 of the terminal 30 is expanded in accordance with the displacement of the slider main body portion 40a while the contact portion 33 is supported by the support surface 41a. At this time, as shown in FIG. 26 (d), the entire contact portion 33 is supported by the support surface 41 a of the slider body 40 a, and the contact portion 31 of the terminal 30 extends from the corresponding electrode formation surface of the circuit board 12. is seperated.

  27A to 27D show a state in which the lock portion 45b of the second arm portion 45 is placed on the one surface 12b of the circuit board 12 when the circuit board 12 is pulled out.

  In the state shown in FIG. 26, the second side portion 46b of the lock portion 45b is located at the center of the insertion hole 21 in the height direction as the facing surface 48 is further away from the slider body portion 40a (closer to the distal end surface 20a). It is arranged to approach the virtual line CL that passes. That is, the opposing surface 48 of the second side 46b is inclined with respect to the depth direction. Further, the facing surface 48 of the second side portion 46 b straddles the one surface 12 b of the circuit board 12. Therefore, when the circuit board 12 is further pulled out, as shown in FIG. 27B, the spring portion 45a is expanded by the circuit board 12 (elastically deformed in the height direction), and the lock portion 45b is formed in the circuit board 12. On one side 12b.

  It should be noted that the slider body 40 a is in the initial position in the state of FIG. 26 and does not change with the first arm 43. Further, the terminal 30 is not changed.

  28A to 28D show a state where the circuit board 12 has passed through the second arm portion 45 and has been pulled out.

  The lock portion 45b of the second arm portion 45 contacts the one surface 12b of the circuit board 12 until the circuit board 12 passes. As shown in FIG. 28B, when the circuit board 12 passes through the lock part 45b of the second arm part 45 and the circuit board 12 supporting the lock part 45b disappears, the spring part 45a releases the elastic deformation energy. The tip of the spring part 45a is displaced to a position where it contacts the guide part 71a. That is, the state shown in FIG. 20 is obtained when the circuit board 12 is pulled out.

  Thus, in this embodiment, when the circuit board 12 is pulled out from the insertion hole 21 by the above-described return means, the slider 40 (slider body 40a) can be returned to the initial position as the circuit board 12 is displaced. it can. When the slider main body 40a is displaced as the circuit board 12 is pulled out, the contact portion 33 is supported in a state where the projecting portion 32 is expanded by the slider main body 40a, and the contact portion 31 corresponds to the corresponding electrode of the circuit board 12. The position is away from the forming surface. In this way, the circuit board 12 can be repeatedly inserted into and removed from the card edge connector 11.

  Further, since the contact portion 33 of the terminal 30 is supported on the support surface 41a of the slider main body 40a when the circuit board 12 is pulled out, the contact portion 31 of the terminal 30 is prevented from contacting the circuit board 12. Can do. And the electrical connection reliability can be further improved by suppressing the short circuit due to the peeling of the plating on the surface of the terminal, the deformation of the terminal 30 or the peeling of the plating scraps.

(Modification)
In this embodiment, the example provided with a positioning means with a return means was shown. However, the configuration may be such that only the return means is provided without the positioning means.

  In this embodiment, the example of the L-shaped lock part 45b which has the 1st edge part 46a and the 2nd edge part 46b was shown. However, as shown in FIG. 29, for example, the lock portion 45b has a third side portion 46d that extends from the end of the second side portion 46b opposite to the first side portion 46a and faces the first side portion 46a. May be.

  In the case of the L-shaped lock part 45b, when the circuit board 12 is pulled out, the end of the second side part 46b opposite to the first side part 46a is formed on the circuit board 12 as shown in FIG. It is also conceivable that the notch 61 is caught on the wall surface on the back side in the depth direction. In this case, in order to remove the lock part 45b from the notch part 61, the force larger than usual is required. On the other hand, as shown in FIG. 29, when the lock portion 45b having the folded side structure including the third side portion 46d is employed, the lock portion 45b is pulled along with the withdrawal of the circuit board 12, as shown in FIG. Can be smoothly removed from the notch 61. In the example shown in FIG. 30A, the corner 46e between the second side 46b and the third side 46d has a rounded shape, so that it can be easily removed from the notch 61. Yes.

  In the present embodiment, an example in which a part of the wall surface of the groove portion 71 provided in the lateral insertion hole wall surface 21b in the housing 20 is the guide portion 71a is shown. However, for example, as shown in FIGS. 31A and 31B, a protrusion 72 provided on the insertion hole wall surface 21b of the housing 20 may be used as a guide portion.

  Further, as shown in the first embodiment (see FIG. 10), when the bottom surfaces of the plurality of groove portions 42 provided in the slider main body portion 40a corresponding to the contact portions 33 are the support surfaces 41a, the circuit board 12 is provided. When pulling out, the contact portions 33 of the terminals 30 placed on the slider main body 40a are brought into contact with each other between the adjacent terminals 30 in the lateral direction, thereby preventing the peeling of the plating layer and the deformation of the terminals 30. can do.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

  In the present embodiment, 1) the circuit board 12 has the electrodes 60 on both sides, and 2) the slider 40 (slider body 40a) has taper-like support surfaces 41a on both sides in the height direction. Indicated. However, the electrode 60 may be provided only on one surface of the circuit board 12, and the slider 40 (slider body 40a) may have a tapered support surface 41a only on the electrode forming surface side. In this case, in order to fix the circuit board 12, the other surface side of the circuit board 12 may be supported by a support portion provided integrally with the housing 20. The same applies to the positioning of the slider 40.

DESCRIPTION OF SYMBOLS 10 ... Electronic device 11 ... Card edge connector 12 ... Circuit board 20 ... Housing 21 ... Insertion hole 28, 28a, 28b ... Through-hole 30 ... Terminal 31 ... Contact Part 32 ... Projection part 33 ... Contact part 40 ... Slider 40a ... Slider main body part 41a ... Support surface 43 ... First arm part 45 ... Second arm part 60, 60a , 60b ... electrode 71 ... groove 71a ... guide part

Claims (11)

A card edge that electrically connects a plurality of electrodes provided on at least one of both surfaces of the end portion of the circuit board and a harness drawn to the outside by inserting the end portion of the circuit board A connector,
A housing that has an insertion hole that is open at a distal end surface and into which an end of the circuit board is inserted;
A spring-deformable member that is held in the housing and electrically connects the electrode and the harness, and projects from the holding portion held in the housing into the insertion hole while the distal end surface of the insertion hole The insertion hole has a protrusion including a contact portion that contacts the electrode and extends in the depth direction opposite to the depth direction, and the protrusion corresponds to the depth direction and the thickness direction of the circuit board. A plurality of terminals arranged along a lateral direction perpendicular to both directions of the height direction of
A slider disposed in the insertion hole so as to be displaceable in the depth direction by receiving an external force, and
The terminal has a contact portion that is supported in contact with the slider on the deeper side in the depth direction than the contact portion in the protrusion,
The slider is disposed on the back side in the depth direction with respect to each contact portion, and is pushed by the circuit board as the circuit board is inserted into the insertion hole, before the circuit board is inserted. From the initial position to the board insertion completion position where the contact portion contacts the electrode and the insertion of the circuit board is completed, it is displaced to the back in the depth direction,
In the initial position, the contact portion is supported in a state where the projecting portion is expanded by the slider, and the contact portion is located away from the corresponding electrode forming surface of the circuit board.
In the board insertion completion position, the contact portion of the terminal is completely detached from the slider, and the terminal applies a reaction force due to spring deformation to the circuit board via the contact portion that contacts the electrode. Characteristic card edge connector.   2. The contact portion support surface of the slider and the slider contact surface of the contact portion have a taper shape that approaches the electrode formation surface as it approaches the tip surface in the depth direction. Card edge connector as described in.   The card edge connector according to claim 2, wherein the slider contact surface of the slider and the slider contact surface of the contact portion have opposing taper shapes. Before the contact portion of the terminal is completely removed from the slider, the contact portion is placed on a portion of the electrode having a predetermined width in the depth direction,
4. The card edge connector according to claim 2, wherein the surface of the electrode is wiped until the board insertion completion position is reached. 5. The housing has a protective wall portion provided next to the contact portion in the lateral direction,
The protective wall portion extends from the contact portion to a position closer to the electrode formation surface while being separated from the electrode formation surface of the circuit board so as to cover the contact portion at the initial position of the slider in the height direction. The card edge connector according to any one of claims 1 to 4, wherein the card edge connector is formed.   The protective wall portion is provided from a position closer to the tip surface than the contact portion in the depth direction, and a surface facing the electrode formation surface of the circuit board is closer to the electrode formation surface in the depth direction. 6. The card edge connector according to claim 5, wherein the card edge connector has a tapered shape.   The card edge connector according to any one of claims 1 to 6, wherein the slider uses a bottom surface of a plurality of groove portions provided corresponding to each contact portion as a contact portion support surface. The insertion hole penetrates the housing in the depth direction,
The card edge connector according to any one of claims 1 to 7, wherein an opening opposite to the tip surface is closed by a lid member. The electrodes of the circuit board are provided in a plurality of rows in the depth direction, and are shifted in the lateral direction for each row,
As the plurality of terminals, corresponding to each of the plurality of rows of electrodes, the protrusions have different lengths from each other, and have the same type as the number of rows of the electrodes
9. The card edge connector according to claim 1, wherein at the initial position of the slider, the contact portion of each terminal is supported by the slider at the same position in the depth direction. The electrodes of the circuit board are provided in a plurality of rows in the depth direction, and are shifted in the lateral direction for each row,
The plurality of terminals have the same length of the protruding portion, and the slider supports the contact portion in a depth direction that differs for each row of the electrodes in the depth direction. The card edge connector according to item 1. The electrodes are provided on both sides of the circuit board,
The plurality of terminals include: a terminal protruding from the wall surface of the insertion hole facing one surface of the circuit board; and a terminal protruding from the wall surface of the insertion hole facing the surface opposite to the one surface of the circuit board. The card edge connector according to any one of claims 1 to 10.

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