JP2809339B2 - Edge connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an edge connector used for mounting a substrate such as a memory module having a plurality of conductive pads at the tip on a surface of another substrate.

[0002]

2. Description of the Related Art As an edge connector for a substrate (module substrate) such as a memory module, there is one shown in FIG. The main body of the edge connector 81 is formed of a resin material (insulating material) such as plastic, and as shown in FIG. Is inserted into the receiving space. Then, the substrate 86 at the position where the front end is inserted into the receiving space and the rear part is jumped up (hereinafter referred to as “jumping position”) is provided with the arm 82 and the arm 82 as shown in (B) and (C). It is pushed down to a position (hereinafter, referred to as a “mounting position”) that is parallel to another substrate, and is attached to the edge connector 81.

The arm 82 of the edge connector 81 is provided with a latch 85 for fixing and holding a substrate 86 at a mounting position. The latch 85 is engaged with the upper surface of the board 86 at the mounting position in a state of protruding from the arm portion 82 to the inside of the edge connector 81, while holding the latch 85 of the board 86 in a state of being opened outward in the lateral direction of the arm portion 82. Movement between the flip-up position and the mounting position is allowed. In order to smoothly engage and disengage the latch 85, a notch 86a is formed at a side end of the substrate 86.

The latch 85 has a locking portion 85a formed so as to be freely locked in a notch 86a, and a handle for moving the latch 85 outwardly in the left and right direction of the arm portion 82 when the board 86 is disengaged. 85b are formed. When replacing the board 86, the handles 85b, 85b are pushed right and left to release the engagement of the engaging portions 85a, 85a with the notches 86a, 86a, and the board 86 is moved to the flip-up position. Let it.

As one example of the edge connector having such a configuration, there is an edge connector disclosed in Japanese Patent Application Laid-Open No. 3-108286. In this edge connector, a latch 8 for repeatedly engaging and disengaging the substrate 86 is disclosed.
In order to improve the durability of the latch 5, the latch 85 is formed separately from the arm portion 82 by using an elastically deformable metal fitting or the like.
5 is separately attached so as to be able to swing laterally with respect to the arm portion 82.

In such an edge connector 81, it is necessary to position the board 86 at the mounting position. Here, as a method of performing positioning, there is a method of using a notch 86a formed in the substrate 86. Specifically, a positioning protrusion that fits with the notch 86a is integrally formed below the engaging portion 85a. To position the substrate 86 at the mounting position.

[0007]

However, in the edge connector configured as described above, when the board is positioned with respect to the edge connector using the positioning projection formed on the latch, the latch is separated from the arm. Since it is formed and attached later, it is difficult to position the latch with respect to the arm portion, which may cause a shift.
In this case, the position of the positioning projection on the edge connector is shifted, and there is a problem that accurate positioning of the substrate cannot be performed.

As described above, if the position of the positioning projection on the edge connector is shifted, the board is locked and held in a state where the locking by the engaging portion or the like is incomplete, and thus the locking is performed. If the substrate is temporarily locked in an incomplete state, there is also a problem that the substrate may come off due to slight vibration or the like, or a contact failure may occur. In addition, when the board is locked with the positioning projection and the fitting position of the board deviated due to the incomplete insertion position of the board with respect to the edge connector, the board may be disengaged or the contact may be poor. Or may occur. Further, in the edge connector configured as described above, since a portion to be touched by a finger such as a handle or a release portion is formed of a metal plate-shaped material, there is also a problem that a touch when touched by a finger is not good. .

SUMMARY OF THE INVENTION The present invention has been made in view of such a problem, and it is possible to accurately position a board with respect to an edge connector at a mounting position and to reliably hold and hold the board. It is an object of the present invention to provide an edge connector that also has a good feel when touching the edge connector in order to perform a release operation of the edge connector.

[0010]

In order to achieve the above object, according to the present invention, a front end of a substrate is received in a receiving space in which a contact is provided, and extends along an arm. The arm connector is provided with a locking means for fixing and holding the substrate in a state in which the substrate is extended, and the substrate extends along the arm by pushing down from a flip-up position where the rear portion of the substrate is raised with respect to the arm. It is held at the mounting position. According to the present invention, a locking member movable between a locking position for locking and holding the board located at the mounting position and a release position for releasing the locking and holding is formed of a metal material and attached to the housing. A board located at a mounting position by a locking means for moving the locking member from the locking position to the releasing position by opening a release lever formed integrally with the housing from the resin material and formed to be engageable with the locking member. Are configured to be engaged and held. It is preferable that the locking member be moved between the locking position and the release position by swinging in the left-right direction.

In such an edge connector, when the substrate is to be attached or detached, the locking member formed of a metal material is moved between the locking position and the releasing position. Since it is configured to be able to engage with the release lever, the operator only has to open the opening operation by touching only the release lever formed of a resin material, and it is not necessary to touch the metal part, so that the operation feel is good.

In the edge connector thus configured, positioning recesses are formed on both side surfaces of the board to be locked and held, and positioning projections which fit into the positioning recesses at the mounting position are integrated with the release lever. In this case, when the board is locked and held by the edge connector, the positioning protrusion and the positioning recess of the board are fitted to perform positioning. Since the positioning protrusion is formed integrally with the housing, the positioning position of the positioning protrusion in the edge connector can be manufactured with high precision. This makes it possible to reliably position the board at the mounting position with respect to the edge connector.

When the release lever is opened, the locking member and the release lever engage to move the locking member to the release position. However, when the locking member moves from the locked position to the release position, the release lever is moved. In this case, the board may be pushed down from the flip-up position to the mounting position so that only the locking member that is always in the locking position once moves to the release position and then moves again to the locking position. Then, the substrate is locked and held. On the other hand, if the release lever is opened in the same manner as described above, the board can be removed by moving the locking member together to the release position.

Further, also in the edge connector configured as described above, the positioning projection may be formed integrally with the release lever. In this case, when the position of the positioning protrusion and the positioning recess at the mounting position are not aligned, such as when the board is not completely inserted into the receiving space, the locking member is moved to the release position. Also, since the release lever does not move, the positioning protrusion comes into contact with the substrate when the substrate is to be pushed down to the mounting position. This makes it impossible to push down the board to the mounting position,
The displacement can be easily detected, and the board is not engaged and held in an incomplete state.

[0015]

Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an example of an edge connector according to the present invention. This edge connector 1
Is composed of a housing 2 integrally formed of an insulating material such as a resin, contacts (lower contact 3 and upper contact 4) held by the housing 2, and a lock mechanism 5 attached to the left and right sides of the housing 2. Have been.

The housing 2 includes a main body 21 extending in the left-right direction, and an arm 22 extending rearward (in FIG. 1 toward the front) from the left and right ends of the main body 21. A substrate receiving groove (receiving space) 21 a extending in the left-right direction and penetrating in the front-rear direction of the main body 21 is formed inside the main body 21. On the lower surface of the upper wall portion 21b of the substrate receiving groove 21a, a number of upper contact receiving grooves 21c extending in the front-rear direction are formed in parallel in the left-right direction.

The upper surface of the thick portion 21d below the substrate receiving groove 21a is sandwiched between the substrate mounting surfaces 21e formed at the rear portions of the left and right ends and between the substrate mounting surfaces 21e. And a contact arrangement surface 21f formed one step lower. The front part of the substrate mounting surface 21e is inclined forward and downward so as to have the same height as the contact arrangement surface 21f. On the contact arrangement surface 21f, a large number of lower contact receiving grooves 21g extending in the front-rear direction are formed in parallel in the left-right direction. The upper and lower contact receiving grooves 21c and 21g are arranged in a staggered manner in the upper and lower directions. Further, on the lower surface of the housing 2,
A boss 21k is provided for positioning with respect to another substrate (not shown) such as a computer substrate to which the edge connector 1 is attached.

The arm 22 has an inner portion 22a facing the inside of the edge connector 1 and having the same upper surface as the substrate mounting surface 21e, and an outer portion facing the outside of the edge connector 1 and having an upper surface formed by the inner portion 22a. And a high outer portion 22b. The inner wall surface 22c of the outer portion 22b is formed so as to extend upward and outward in order to easily mount a module substrate, which will be described in detail later, on the substrate mounting surface 21e. At the boundary between the main body 21 and the right arm 22, there are formed direction-adjusting projections 23 projecting in an L-shape on the upper surfaces of the substrate mounting surface 21 e and the inner portion 22 a. Also, a slope connected to the inner wall surface 22c is formed.

As shown in FIG. 7, the lower contact 3 has a base portion 31 extending in the vertical direction,
1 includes a press-fit portion 33 extending rearward (rightward in FIG. 7) from a lower rear portion and a contact portion 34 extending from a rear upper portion of the base portion 31. The contact portion 34 extends slightly upward from the upper end of the base portion 31,
It extends rearward, its tip is largely curved downward in a U-shape, and its tip 34a is formed to be bent obliquely downward. The lower contact 3 is held by being pressed into the housing 2 from the front.
The U-shaped portion of the contact portion 34 is received in the lower contact receiving groove 21g, and the tip 34a protrudes into the substrate receiving groove 21a from near the rear end of the contact arrangement surface 21f.

The upper contact 4 has a base portion, a lead portion, and a press-fit portion formed similarly to the lower contact 3.
And a contact portion 44 extending from the rear upper portion of the base portion. The contact portion 44 extends upward from the upper end of the base portion (higher than the contact portion 34 of the lower contact 3), and then straightly extends rearward to form a front end (rear end).
44a is formed in a small U-shaped curved shape toward the lower side. The upper contact 4 is also pressed and held in the housing 2 in the same manner as the lower contact 3. The contact portion 44 is received in the upper contact receiving groove 21c, and only the lower portion of the tip 44a protrudes into the substrate receiving groove 21a.

Next, the lock mechanism 5 will be described with reference to FIGS. Note that FIG.
Although the arrow V is shown, only members near the rear end of the arm 22 are shown for convenience of explanation. The lock mechanism 5 includes a housing-side lock portion formed integrally with the arm portion 22 and a locking member-side lock portion 50 formed separately from the arm portion 22.

The housing-side lock portion includes a housing-side leaf spring portion 22d formed in the vicinity of a center portion of the arm portion 22 in the left-right direction and extending vertically in a plate shape, and a leaf spring portion 2d.
The release lever 25 is formed integrally with the leaf spring portion 22d at the tip of 2d. A positioning projection 26 is formed inside the front end of the release lever 25 so as to be freely fitted into a positioning recess formed in a substrate, which will be described in detail later. Since the leaf spring portion 22d is formed to have a dimension in the vertical direction that is larger than the width size in the left and right directions, the leaf spring portion 22d extends in the left-right direction around the pivot portion of the housing-side leaf spring portion 22d near the center of the arm portion 22. It can swing freely.

However, the inner portion 22a is located inside the housing-side leaf spring portion 22d in the arm portion 22, and a gap 22e between the inner surface of the housing-side leaf spring portion 22d and the outer surface of the inner portion 22a will be described later. Since the locking member-side lock portion 50 is inserted, the housing-side leaf spring portion 22d restricts the swinging motion of the edge connector 1 inward. The outer portion 22b is formed shorter in the front-rear direction than the inner portion 22a.
Also, there is no interference between the release lever 25 and the outer portion 22b, and the outward swinging movement of the housing-side leaf spring portion 22d is allowed.

The locking member side locking portion 50 is made of brass,
It is formed by bending a plate-like metal material such as copper, iron, or an alloy thereof by press molding or the like, and then performing solder plating or the like. The locking member-side lock portion 50 extends horizontally from a base portion 51 extending in the horizontal direction, a slightly lower portion from the rear end portion (right end portion in FIG. 2) of the base portion 51, and then extends horizontally (crank-shaped). After extending upward from the front end portion of the base portion 51 and the surface mount portion 52 protruding to the left and right outside of the arm portion 22,
A locking member side leaf spring portion 53 formed to extend rearward, and a rear end portion of the locking member side leaf spring portion 53 extends upward and has a front end portion protruding inside the arm member 22 to form a U-shape. A locking portion (locking member) 54 and an engaging portion 55 formed in a U-shape so as to return from the rear end of the locking member-side leaf spring portion 53 to the distal end side. Note that the lower surface of the surface mount portion 52 is formed so as to be located slightly below the lower surface of the arm portion 22.

The locking member-side locking portion 50 thus configured is such that the inner surface of the locking member-side leaf spring portion 53 is
The base 51 is in contact with the outer surface of the arm member 2a.
2 is press-fitted and held in a base portion insertion groove 22f extending in the front-rear direction at the lower portion of
Is formed at the rear of the release lever 25 and is formed in the engagement groove 2.
7 and is assembled to the arm 22.

As shown in FIG. 3A, the lock mechanism 5 provided at the rear end of the arm 22 exerts a lateral force on the housing-side leaf spring 22d and the locking member-side leaf spring 53. Does not act at all (the leaf spring portion 5 on the locking member side).
3 is in contact with the outer surface of the inner part 22a)
Thus, a position where the tip of the locking portion 54 protrudes inward from the inner side surface of the inner portion 22a (hereinafter, referred to as a “locking position”).
And between a position where the distal end of the locking portion 54 is outside the inner side surface of the inner portion 22a (a position through which it can pass through the positioning recess, hereinafter referred to as a "release position") as shown in FIG. And can be swung (movable) in the left-right direction. Then, the locking portion 54 at the release position is urged in the direction of the locking position by the repulsive force of each leaf spring portion 22d, 53.

The edge connector 1 configured as described above
, A memory module 6 shown in FIG. 8 is detachably mounted. The memory module 6 includes a card-shaped module substrate 61 and a plurality of memory chips 62 mounted on the substrate 61. The front ends of the upper and lower surfaces of the module substrate 61 are respectively provided with conductive pads 6.
3, 64 are formed, and these conductive pads 63, 64 are
It is connected to the memory chip 62 via a wiring pattern (not shown). An L-shaped notch 61a for alignment is formed at the right front end of the module substrate 61. Further, a positioning concave portion 61b cut out in a semicircular shape is formed on the rear side of the left and right ends of the module substrate 61.

Next, the operation of attaching and detaching the memory module 6 to and from the edge connector 1 will be described. When attaching the memory module 6 to the edge connector 1, first, the user holds the memory module 6 by hand and as shown in FIG. 7A, attaches the front end of the memory module 6 to the housing 2 (the main body 21).
Is inserted obliquely from above into the substrate receiving groove 21a. At this time, if the alignment projections 23 of the edge connector 1 are received in the alignment notches 61a of the memory module 6, the orientation of the memory module 6 with respect to the edge connector 1 will not be erroneous. The lower conductive pad 63 on the lower side of the memory module 6 has the tip 3 of the lower contact 3 attached thereto.
4a and the tip 44a of the upper contact 4 comes into contact with the upper conductive pad 64, so that the memory module 6 is held at a position where the rear portion is raised with respect to the arm portion 22 (floating position). You.

Next, as shown in FIG. 7B, the rear part of the memory module 6 is pushed down against the elastic force of the upper and lower contacts 3 and 4. At this time, as shown in FIG.
The upper surface 54a of the inner portion of the locking portion 54 located at the locking position
The lower surface of the memory module 6 and the positioning recess 61b
The corner portion 61c formed by the inner surface of the contact portion abuts, and generates a force F for moving the locking portion 54 in the direction of the release position. Therefore, as the memory module 6 is pushed down, the corner portion 61c pushes the locking portion 54 toward the release position while sliding on the upper surface 54a. At this time, since the engaging portion 55 is inserted and held in the engaging groove 27, the release lever 25 always moves outward integrally with the locking member side locking portion 50. The center of the upper surface 54a is formed to have a gentle slope so that the corner 61c can smoothly slide on the upper surface 54a. The corner 61c may be rounded to make the sliding smoother.

When the locking portion 54 reaches the release position, it enters into the positioning recess 61b, and the memory module 6 comes into contact with the substrate mounting surface 21e of the main body 22 and the upper surface of the inner portion 22a of the housing 2 (mounting). ) Position (mounting position), the positioning recess 61 b is located below the locking portion 54. Here, the substrate mounting surface 21e
Since the distance L from the upper surface to the lower surface 54b of the locking portion 54 is substantially the same as or slightly larger than the thickness T of the module substrate 61, as shown in FIG. Spring part 53 and housing side leaf spring part 22
The memory module 6 is returned to the locking position by the urging force of d, and the lower surface 54b of the locking portion 54 comes into contact with the upper surface of the module substrate 61, so that the memory module 6 is engaged and held without jumping up.

In this mounting position, as shown in FIG. 7 (B), the lower contact 3 is held in a state of being moved down to some extent by the memory module 6, and its tip 34a is moved by its own elastic force. The conductive pad 63 on the lower surface side of the memory module 6 is pressed. In addition, the upper contact 4 is held in a state of being moved up to some extent, and the tip 44 a thereof is pressed against the conductive pad 64 on the upper surface side of the memory module 6 by its own elastic force.

Further, at the mounting position, as shown in FIG.
Mates with The fitting projection 26 has an arc conforming to the shape of the positioning concave portion 61b formed in a semicircular shape. Here, when the insertion of the memory module 6 into the receiving groove 21a is incomplete, the positioning protrusion 2
Since the memory module 6 and the positioning recess 61b do not coincide with each other, even if the memory module 6 can be pushed down to the mounting position, the locking member 54 cannot sufficiently hold the module substrate 61.

Memory module 6 held at mounting position
When the cable is detached from the edge connector 1, FIG.
When the release lever 25 is pushed right and left (in the direction indicated by the arrow 25b formed on the upper surface of the release lever 25) with a finger, as shown in FIG. The locking portion 54 moves to the unlock position.
As a result, the locking notch 61b of the memory module 6 that is about to jump up passes through the outside of the locking portion 54, and the memory module 6 returns to the flip-up position.
What is necessary is just to pull out the memory module 6 from the edge connector 1 by hand.

According to the edge connector 1 configured as described above, the mounting of the memory module 6 to the mounting position can be easily performed by pushing down the memory module 6. Is formed of a metal material, and thus has excellent durability even when repeatedly attached and detached. Then, as shown in FIG. 5 (B), when correctly mounted at the mounting position, the locking portion 54 is located inside the positioning concave portion 61b, so that the width of the edge connector 1 in the width direction at the time of mounting. Can be reduced, and the positioning protrusion 26 formed integrally with the housing 2 can be formed.
Are fitted in the positioning recesses 61b, so that the memory module 6 is held at an accurate position without jumping up to the edge connector 1 and not moving backward at the mounting position. Note that the memory module 6
Is restricted by receiving the alignment protrusion 23 in the alignment notch 61a.

Further, as shown in FIG. 5A, when the memory module 6 is pushed down in an incompletely inserted state (a state in which the alignment projection 23 is not received in the alignment notch 61a). In some cases, the memory module 6 is locked by a part of the locking member 54. However, since the positioning projection 26 does not fit with the positioning recess 61b, the release lever 25 projects sideways, and the edge connector 1 It can be easily grasped visually that the memory module 6 is not securely engaged and held. For this reason, it is possible to prevent the board 61 from being engaged and held in a state in which the board 61 is easily detached from the locking member 54 (incomplete engagement holding state) due to a displacement of the memory module 6 with respect to the edge connector 1. , Memory module 6 at mounting position
Can be properly positioned and securely held.

Next, the edge connector 101 according to the second embodiment of the present invention will be described with reference to FIG. The edge connector 101 has the same configuration as the edge connector 1 except that the configuration of the left and right arm portions 122 is different, and thus the description of the other parts is omitted. In the arm 122, the arm 2
Similarly to 2, a housing-side leaf spring portion 122d and a release lever 125 formed integrally with the distal end of the leaf spring portion 122d are provided, and are formed in the same shape as the locking member-side lock portion 50. Locking member side lock section 1
50 are assembled.

The release lever 125 has a positioning protrusion 26
A positioning projection 126 having the same shape as that of the positioning projection 126 is formed. A release lever notch 125c is formed behind the positioning projection 126, and an engagement projection 127 is formed on the lower surface. Note that this release lever 1
25 has a shape in which the outside of the engagement protrusion 127 is not always engaged with the engagement portion 155, but may be formed in a wide groove shape. A U-shaped engaging portion 155 is also formed at the rear end of the locking member-side leaf spring portion 153 of the locking member-side locking portion 150. It is formed at an interval P longer than the interval between the spring portion 53 and the engagement portion 55.

As shown in FIG. 9 (A), when no force is applied to the housing-side leaf spring portion 122d and the locking member-side leaf spring portion 153, the outer surface 127a of the engagement protrusion 127 and the engagement portion 155 The inner side surface 155a is disposed so as to be in contact with or slightly apart from the inner side surface 155a. Then, when the memory module is pushed down to engage and hold the memory module with the edge connector 101, the locking portion 154 opens outward as shown in FIG. At this time, since there is no contact surface with the release lever 125 corresponding to the inner surface of the engagement groove 27 of the release lever 25 outside the engagement portion 155, only the locking member side lock portion 150 moves outward. I do. When the memory module is further pushed down, the memory module 6
As in the case of pressing down, the fitting notch formed in the memory module is fitted with the fitting projection 126, and the memory module is engaged and held by the edge connector 101. When the memory module is pushed down, the memory module shown in FIG.
In the case where the insertion is negative and complete as in the case shown in (1), the release lever 125, that is, the fitting protrusion 126 does not move when the edge connector 101 is pressed down, so that the lower surface of the module substrate is positioned on the upper surface of the positioning protrusion 126. And cannot be pushed down to the mounting position.

Then, when the memory module 6 engaged and held is to be removed, the release lever 125 is pushed outward to swing as shown in FIG. This swinging movement causes the inner surface 155a of the locking portion 155 to move to the engagement protrusion 127.
The locking member side locking portion 150 also swings outward with the swinging movement of the release lever 125 in contact with the outer side surface 127a of
The locking part 154 moves to the release position.

In the above embodiment, the memory module is provided with a semicircular notch as a positioning recess. However, in the edge connector of the present invention, the shape is not limited to a semicircle, but may be rectangular. A notch having a shape may be used, and a through opening may be provided instead of the notch. Further, in the above-described embodiment, the inner upper surface of the positioning recess is used as the engagement holding surface of the locking member. However, it is not always necessary to perform the engagement holding by the locking member at this portion, and other positions may be used. Of course it is good.

[0041]

As described above, in the edge connector of the present invention, the board is locked by the locking member formed of a metal material and movable between the locking position and the releasing position. The release lever for moving the member is formed of a resin material and is formed integrally with the housing of the edge connector. For this reason, when the locking member is moved from the locking position to the releasing position when the substrate is attached or detached, the locking member is formed of a metal material, so that the durability is improved and the releasing portion, which is a portion touched by the operator, is improved. Since the lever is made of resin, it has a good contact feeling. Also, by forming the release lever integrally with the housing, the release lever can be easily formed. Further, a positioning recess may be formed in a board to be attached to and detached from the edge connector, and a positioning projection which can be fitted to the positioning recess at the mounting position of the board may be formed integrally with the release lever. In this case, the positioning protrusions are formed integrally with the housing, so that the positioning protrusions can be easily formed, and the positioning accuracy of the positioning protrusions formed on the housing can be improved. Therefore, accurate positioning of the board at the mounting position with respect to the edge connector can be easily performed.

In the edge connector described above, when the release lever is opened, the locking member and the release lever engage to move the locking member to the release position, but the locking member moves from the locked position to the release position. In this case, the release lever may not move.In this case, when the board is engaged with the edge connector by pushing down the board to the mounting position, only the locking member swings. Therefore, the mounting portion between the housing and the release lever does not swing, so that the durability of the swing portion formed of the resin material can be improved. Further, also in this edge connector, a positioning projection which can be fitted into the positioning recess of the substrate may be formed integrally with the release lever. In this case, even if the locking member is moved from the locking position to the release position by pressing down the substrate, the positioning protrusion does not move and cannot be pressed down to the mounting position. Thereby, the displacement of the board can be easily detected, and the board is not locked and held in a state where the board is not completely inserted into the edge connector.

[Brief description of the drawings]

FIG. 1 is a perspective view of an edge connector according to the present invention.

FIG. 2 is a front view and a partial cross-sectional view of the edge connector.

FIG. 3A is a top view of the edge connector in a locked position of a release lever and a locking member, and FIG.
A top view at the unlocked position is shown in FIG.

FIG. 4 is a partially enlarged view of the edge connector as viewed from a direction of an arrow IV in FIG. 2;

FIG. 5 is a top view illustrating a state in which a board is engaged and held by the edge connector.

FIG. 6 is an explanatory diagram of attachment / detachment of the board to / from the edge connector.

FIG. 7 is an explanatory diagram of attachment / detachment of the board to / from the edge connector.

FIG. 8 is a perspective view of a memory module which is an example of the substrate.

FIG. 9 is a top view of another edge connector according to the present invention.

FIG. 10 is an explanatory view of attachment / detachment of the conventional memory module to / from the edge connector.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Edge connector 2 Housing 3, 4 Contact 5 Lock mechanism 6 Memory module 25, 125 Release lever 26, 126 Positioning protrusion 61b Positioning recess

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-6-349549 (JP, A) JP-A-7-335321 (JP, A) JP-A 8-22865 (JP, A) 108286 (JP, A) JP-A-5-234639 (JP, A) JP-A-5-211076 (JP, A) JP-A-6-88073 (JP, U) JP-A-2-52278 (JP, U) Table 6-507264 (JP, A) Table 3-504180 (JP, A) (58) Fields surveyed (Int. Cl. ⁶ , DB name) H01R 13/639 H01R 23/68 301

Claims (3)

(57) [Claims] A housing formed of a resin material having a main body having a receiving space capable of receiving a front end of the substrate, and arms extending rearward from both left and right ends of the main body; and the receiving space. A plurality of contacts arranged in alignment with the conductive pads formed on the front end of the substrate while receiving the front end of the substrate;
Lock means provided on the arm portion, for receiving the front end portion in the receiving space, and fixing and holding the substrate in a state of extending along the arm portion, wherein the front end portion of the substrate is The conductive pad and the contact are formed by being pushed down from a flip-up position where the rear portion of the substrate is inserted into the receiving space and the rear portion of the substrate is raised with respect to the arm portion, to a mounting position where the substrate extends along the arm portion. Wherein the locking means is formed of a metal material, is attached to the housing, and has a locking position for locking and holding the board located at the mounting position, and a locking position. A locking member movable between a release position to be released and a housing formed integrally with the housing by a resin material and capable of engaging with the locking member to perform an opening operation; A release lever for moving the locking member from the locking position to the release position. 2. When the release lever is opened, the locking member and the release lever are engaged to move the locking member to the release position. The edge connector according to claim 1, wherein the release lever does not move when moving to the position. 3. A positioning concave portion is formed on both side surfaces of the substrate, and a positioning projection which is fittable with the positioning concave portion at the mounting position is formed integrally with the release lever. The edge connector according to claim 1 or 2.