JP2872173B2 - Lock structure of circuit board package - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock structure for preventing a circuit board package housed in a housing from being pulled out.

[0002]

2. Description of the Related Art Generally, in order to expand a printed circuit board or the like on which electronic components are mounted in a limited space, a variety of circuit boards packaged in a dedicated housing are detachably inserted. In many cases, the housing is housed in the electronic device together with the housing. In such a case, for example, the inner part of the housing is formed as a mounting surface, and the main circuit board is horizontally fixed to the mounting surface. The plurality of circuit board packages are vertically inserted into and removed from the main circuit board, and are electrically connected to the main circuit board by connectors. Further, in order to prevent the circuit board package after being housed by connection from being detached from the housing, a lock structure is provided around the connector connector at the back of the housing.

Conventionally, as a lock structure of such a circuit board package, there is a guide rail for inserting a package described in, for example, Japanese Patent Application Laid-Open No. 1-173788.

In this case, a package storage rack is provided as a dedicated housing, and the circuit board package is inserted into the rack against the spring material by the guide rail. At the time of insertion, the slide rail is pushed by pushing the end of the circuit board package against the hook provided at the tip of the lock lever. By the pushing, the lock button provided on the slide rail is engaged with the lock hole on the fixed rail side. Thereby, the package is held at the position where the slide rail is locked. Conversely, when removing the package from the rack, the lock button is released, and the package can be extracted from the rack together with the slide rail by the elastic force of the spring material.

[0005]

The locking structure of the circuit board package disclosed in the above publication is a spring member that elastically urges when the circuit board package is inserted and removed, a fixing member that guides the circuit board package in the inserting and removing directions, and It has a guide rail for sliding. Further, when the circuit board package is inserted, a lock lever or the like is provided which hooks a hook portion at the tip thereof to interlock with a slide rail. In addition, the fixed rail is provided with a lock hole, and the slide rail is provided with a lock button which engages with and disengages from the lock hole.

As is apparent from the above, the conventional lock structures including those disclosed in the official gazette have a problem that the number of parts is very large and the structure is complicated, so that the cost is increased.

Therefore, an object of the present invention is to reduce the number of components of a lock structure for preventing a circuit board package from being detached from a housing in a structure in which a plurality of circuit board packages are housed in a housing. An object of the present invention is to provide a lock structure of a circuit board package at a reduced cost.

[0008]

SUMMARY OF THE INVENTION A circuit board lock mechanism of the present invention prevents a circuit board package removably inserted into and electrically connected to a housing to be removed from the housing after being housed. A lock mechanism for a circuit board package, wherein the lock mechanism is slidably contacted with all of the storage housing and is movably provided.
A locking member, wherein the locking member is
Communicates with the end of the circuit board package insertion opening provided in the housing.
Or a package insertion gate that is displaced and shifted,
The circuit board package insertion port end is configured to be shielded by moving the lock member, and the lock member is moved relative to the housing.
Slide to remove the circuit board package
It is characterized in that it is prevented from falling off.

[0009]

When a plurality of insertion port ends are provided horizontally side by side in the housing, a plurality of the package insertion gates are provided at intervals in the longitudinal direction of the lock member so as to correspond to the respective insertion port ends. Can be

[0011] The guide elongated groove may be provided with a lock position concave portion and an unlock position concave portion in which the locking hook is elastically disengaged with the movement of the lock member. Thereby, each position of the lock and the unlock by the movement of the lock member becomes clear with an elastic click feeling.

Further, the insertion port end can be specifically formed by a front opening end of a pair of guide rails provided to be vertically opposed to each other in the vertical direction of the storage housing. In this case, a plurality of pairs of upper and lower guide rails can be provided side by side in the housing in a horizontal direction, and the circuit board packages are inserted one by one from the front opening ends of the pair of guide rails. Has become.

With this configuration, the only related mechanism of the lock structure provided in the storage housing is the guide long groove provided in the front part. The lock member that moves while being guided by the guide long groove is a member formed as a single body. The present invention is not limited to a pair of upper and lower guide rails as members forming the insertion port end, and the means for moving and guiding the lock member is not limited to a guide elongated groove formed on the housing side. For example, in the case of a guide rail, a long groove may be integrally formed on the upper and lower sides of the inside of the storage case, instead of a member formed by a separate process.

That is, the basic structure of the lock structure of the present invention is as follows.
The movable lock member can be referred to, and the number of components is extremely reduced as compared with the conventional structure.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a lock structure of a circuit board package according to the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view showing a housing accommodating a circuit board package including a main part enlarged portion according to the present embodiment,
FIG. 2 is a side sectional view, and FIGS. 3 and 4 are front views showing states of unlocking and locking when the circuit board package is inserted.

The housing 1 has a top plate 2, a bottom plate 3, and left and right side plates 4, and a main circuit board 5 forming a mounting surface is vertically provided on a portion serving as a back plate. A pair of opposing guide rails 6 are provided on the inner surfaces of the upper and lower top plates 2 and the bottom plate 3 so as to extend in the front-rear direction of the housing 1. Several pairs of this pair of upper and lower opposing guide rails 6 are arranged at equal intervals in the lateral direction of the housing, and a plurality of circuit board packages 7 erected in the vertical direction are guided by the respective guide rails 6 and housed. It has become.

The circuit board package 7 can be inserted into and pulled out from the right front opening end of the housing 1 as shown in FIG. The circuit board package 7 is inserted into the housing 1 to a predetermined position, and is electrically connected to the connector 5a on the main circuit board 5 side via the connector 7a at the rear end. The “insertion end of the circuit board package” in the present invention refers to the front opening end 6 a of the pair of upper and lower guide rails 6.

On the other hand, the bottom plate 3 of the housing 1 is angled and has a front skirt portion 3a, and a lock member 10 is slidable on the surface of the front skirt portion 3a. The lock member 10 can be a molded product made of a synthetic resin material, and can be moved by sliding in both left and right directions when the housing 1 is viewed from the front.

In order to slide the lock member 10, a guide elongated groove 3b extending in the horizontal direction is formed in the front skirt portion 3a of the bottom plate 3 as shown in an enlarged view of FIG. A concave portion 3c indicating a locked position and a concave portion 3d indicating an unlocked position are formed continuously on the inner edge of the guide long groove 3b.

A pair of upper and lower locking hooks 12 protrude from the sliding surface 11 of the lock member 10 so as to correspond to the structure of the guide long groove 3b on the bottom plate 3 side, and are integrally formed. The pair of upper and lower locking hooks 12 are formed in a shape and a size that can be relatively elastically bent, are elastically engaged with the guide long grooves 3 b on the bottom plate 3 side, and are hooked on the back surface of the bottom plate 3. Due to this hooking, the lock member 10 does not fall off the bottom plate 3, but is guided by the guide long groove 3 b and can be moved by sliding the bottom plate 3 in the lateral direction, that is, in the lateral direction of the housing 1.

In FIG. 1, the package is inserted into the lock member 10 at regular intervals in the longitudinal direction by the number corresponding to the pair of upper and lower guide rails 6 arranged at regular intervals on the housing 1 side. The gate 13 is provided in a concave shape. The package insertion gate 13 is formed by expanding the front part 13a to facilitate insertion of the circuit board package 7 in the initial stage, and the rear part 13b has a width slightly wider than the thickness of the circuit board package 7. It is formed in a slit shape. By aligning the package insertion gate 13 with the insertion opening formed by the front opening ends 6a of the pair of upper and lower guide rails 6, the circuit board package 7 can be inserted into the housing 1.

With the above configuration, when a plurality of circuit board packages 7 are inserted into the housing 1 and mounted, the lock member 10 connects each package insertion gate 13 to the front portion of the corresponding guide rail 6 on the housing 1 side. It is set to match the opening end 6a. That is, as shown in FIG. 3, the position is adjusted by sliding the lock member 10 so that the locking hook 12 on the lock member 10 side is dropped into the unlock position concave portion 3c in the guide long groove 3b on the housing bottom plate 3 side. .

As shown in FIG. 3, with the lock member 10 in the unlocked position, each package insertion gate 13
, The circuit board package 7 is sequentially inserted, guided by the guide rail 6, and housed inside the housing 1. In this housed state, each circuit board package 7 is electrically connected to the main circuit board 5 via both connectors 7a and 5a at the back of the housing.

Next, as shown in FIG. 4, the lock member 10 is slid to the right side of the drawing and moved from the state in which the circuit board package 7 is stored. Then, the lock member 10 which has been aligned with the front opening end 6a of each guide rail 6 until then.
Each of the package insertion gates 13 on the side is displaced and shifted from the front opening end 6a of the guide rail 6 to shield. This prevents each circuit board package 7 from being detached from the housing 1.

As described above, the lock for each circuit board package 7 is performed not at the inner periphery of the housing 1 as in the conventional structure but at the front open end of the housing 1. There is an advantage that operability is significantly improved.

In the present invention, the pair of guide rails 6 provided on the upper and lower portions of the inside of the housing 1 shown in the above embodiment can be used as a single unit manufactured as separate members, or as the top plate 2 and the bottom plate 3. The upper and lower portions can be formed as long grooves parallel to each other in the vertical direction. Also, in the case of the guide long groove 3b, it is illustrated as if it is provided only at one location. In the present embodiment, the guide long groove 3b can be formed as a single long groove over the entire lateral width of the front skirt portion 3a of the bottom plate 3, that is, over the entire length of the "width" of the housing 1, or over the entire length.

The present embodiment can be applied to a lock structure in which only one circuit board package 7 is housed. Further, depending on the mounting conditions on an electronic device or the like, the present invention is not limited to the configuration in which the circuit board package 7 is inserted upright, and may be applied to a structure in which the circuit board package 7 is stored in the housing 1 in a horizontally stacked state. be able to.

[0029]

As described above, the lock structure of the circuit board package according to the present invention can prevent a plurality of circuit board packages housed in the housing from being pulled out and removed from a very large number of parts as in the conventional structure. Since the structure is based on a structure in which the lock member is slightly slid with respect to the housing without using the structure described above, there is an advantage that the number of parts can be extremely reduced and a significant cost reduction can be realized.

[Brief description of the drawings]

FIG. 1 is a perspective view of a storage case to which a lock structure of a circuit board package according to an embodiment of the present invention is applied and an enlarged portion of a main part is extracted and shown.

FIG. 2 is a side sectional view of the present embodiment.

FIG. 3 is a front view showing a state where the circuit board package is unlocked when the housing is inserted.

FIG. 4 is a front view showing a state in which the circuit board package is locked to prevent removal when the housing is inserted.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Package storage case 3 Case bottom plate 3a Bottom plate front skirt part 3b Guide long groove 3c Unlock position recess 3d Lock position 5 Main circuit board 5a Connector 6 Upper and lower pair of guide rails 6a Front open end (circuit board) 7) Circuit board package 7a Connector 10 Lock member 11 Sliding surface 12 Locking hook 13 Package insertion gate

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H05K 7/14

Claims (6)

(57) [Claims] 1. A locking mechanism for a circuit board package, which prevents a circuit board package detachably inserted into and electrically connected to a storage case from being detached from the storage case after being stored, wherein the lock mechanism comprises: It was provided so as to be able to slide and contact all of the housing
A lock member, wherein the lock member is a circuit board provided in the housing.
A package that communicates with or is displaced from the end of the package insertion port
A gate for inserting the circuit board package into the opening of the circuit board package by moving the lock member.
Wherein the circuit board package is prevented from being pulled out . 2. A plurality of circuit board package insertion port ends are provided horizontally side by side in the housing, and a plurality of the package insertion gates are spaced in the longitudinal direction of the lock member corresponding to each of the insertion port ends. 2. The lock mechanism for a circuit board package according to claim 1, wherein the lock mechanism is provided. 3. The lock member according to claim 1, wherein said lock member has an elastically deformable locking hook which is guided by engaging with a guide elongated groove formed in a front portion of said housing. 1
Or the lock mechanism of the circuit board package according to 2. 4. The circuit according to claim 3, wherein the guide groove has a lock position concave portion and an unlock position concave portion in which the locking hook is elastically disengaged with the movement of the lock member. Lock mechanism for board package. 5. The end of the circuit board package insertion opening is a front opening end of a pair of guide rails provided so as to face the vertical direction of the storage case.
A lock mechanism for a circuit board package according to claim 1. 6. The pair of upper and lower guide rails comprises a plurality of sets provided horizontally side by side in the housing.
The circuit board package is inserted one by one from a front opening of a set of guide rails.
A lock mechanism for a circuit board package according to claim 1.