JP2010283148A - Electronic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To achieve an electronic apparatus capable of securing an effective substrate area. <P>SOLUTION: This is an improved electronic apparatus in which a socket to be connected to a cable is attached to a connector by screwing. The apparatus includes: a printed board part provided with the connector at the front side; a housing in which the printed board part is stored and having an opening from which the connector is exposed at the front face; and a first sheet metal provided inside the housing and having a screw hole to be screwed with the socket. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an electronic device in which a socket to which a cable is connected is attached to a connector by screwing, and relates to an electronic device that can secure an effective board area.

  An electronic device, for example, an input / output module, contains a printed circuit board inside a housing. Such an apparatus is disclosed in Patent Document 1 below, for example. Hereinafter, a description will be given with reference to FIG.

  In FIG. 7, the printed circuit board 1 is mounted with a circuit, and a connector 11 is provided in front. The case 2 is box-shaped and stores the printed circuit board 1 and is provided with an opening 21, studs 22 and 23, sheet metal 24, and screws 25. The opening 21 is provided on the front surface of the case 2 and exposes the connector 11 of the printed circuit board 1. The stud 22 is embedded in the case 21 at both ends of the opening 21. The stud 23 is made of metal and is embedded in the lower front part of the case 2. The sheet metal 24 is formed in a U-shape, is provided at the lower rear portion of the case 2, and is screwed to the stud 23 with a screw 25.

  The socket 3 is provided with a connector portion 31, a cable 32, a shield wire 33, a screw 34, and a fixing screw 35. The connector portion 31 is provided on the front surface of the socket 3 and is attached to the connector 11. The cable 32 and the shield wire 33 are provided on the back surface of the socket 3, and the shield wire 33 is screwed to the stud 23 with a screw 34. The fixing screws 35 are provided at both ends of the socket 3 and are screwed to the stud 22.

  The operation of such an apparatus will be described below. The case 2 has a back surface attached to a backboard (not shown) and is electrically connected. The connector portion 31 of the socket 3 is attached to the connector 11, and is fixed to the stud 22 with a fixing screw 35. The shield wire 33 is fixed to the stud 23 using a screw 34. As a result, the shield wire 33, the stud 23, and the sheet metal 24 are electrically connected to a backboard (not shown), and the shield wire 33 is dropped to the ground.

Japanese Utility Model Publication No. 7-1821 (FIG. 1)

  In such an apparatus, since the studs 22 and 23 are embedded in the case 2 and the socket 3 is connected to the connector 11, the effective area of the printed circuit board 1 is limited. For this reason, even if the number of channels that the socket 3 can handle is limited by the circuit scale that can be mounted on the printed circuit board 1 depending on the type of circuit mounted on the printed circuit board 1, and the number of channels is limited. .

  Therefore, an object of the present invention is to realize an electronic device that can secure an effective substrate area.

In order to achieve such a problem, the invention according to claim 1 of the present invention is:
In electronic devices where the socket to which the cable is connected is attached to the connector by screwing,
A printed circuit board portion on which the connector is provided forward;
A housing having the printed board portion stored therein and an opening through which the connector is exposed on the front surface;
A first sheet metal provided in the housing and having a screw hole to which the socket is screwed is provided.
Invention of Claim 2 is invention of Claim 1, Comprising:
The first sheet metal can be slid.
The invention described in claim 3
The first sheet metal is the invention according to claim 1 or 2,
The main body,
It is provided at both ends of the main body portion and has sleeve portions having the screw holes.
Invention of Claim 4 is invention of Claim 1 or 2, Comprising:
The first sheet metal is
The main body,
Arms formed perpendicular to both ends of the main body,
The arm portion includes a sleeve portion formed perpendicular to the arm portion and having the screw hole.
Invention of Claim 5 is invention in any one of Claims 1-4, Comprising:
The housing is
A first case for storing the back of the printed circuit board unit;
The second case is connected to the first case, stores the front of the printed circuit board portion, and has a second case in which the opening is provided on the front surface.
Invention of Claim 6 is invention of Claim 5, Comprising:
The second case is provided in a lower part of the second case, is formed in a box shape having substantially no upper and lower surfaces, and has a second sheet metal that is electrically connected to the shield wire of the socket and electrically connected to the ground. To do.
Invention of Claim 7 is invention in any one of Claims 1-6, Comprising:
A second connector is provided behind the printed circuit board portion and connected to a connector of a backboard.

  According to the present invention, since the socket is screwed by the screw hole of the first sheet metal, the effective board area of the printed board portion can be ensured.

  According to the second aspect, since the first sheet metal slides and the screw hole of the first sheet metal is aligned with the socket, a stress load can be prevented at the connection portion between the socket and the connector, and disconnection can be suppressed.

  According to the fifth aspect, since the second sheet metal to be grounded is formed in a box shape having no upper and lower surfaces, the effective board area of the printed board portion can be further secured.

It is the block diagram which showed one Example of this invention. It is the figure which showed the specific structure of the sheet metal 54, 67, 68 of the apparatus shown in FIG. FIG. 2 is an assembled view of the apparatus shown in FIG. 1. It is a figure explaining operation | movement of the apparatus shown in FIG. It is a principal part block diagram which showed the other Example of this invention. It is a figure explaining the assembly operation | movement of the apparatus shown in FIG. It is the figure which showed the structure of the conventional electronic device.

  Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of the present invention. Here, the same socket 3 as in FIG.

  In FIG. 1, the printed circuit board unit 4 includes printed circuit boards 41 to 43 on which circuits are mounted. The printed circuit board 41 is provided with a business trip surface 411 at the front lower portion and a connector 412 at the front. The connector 412 is attached with the connector portion 31 of the socket 3. The printed circuit board 42 is attached in parallel to the printed circuit board 41 by studs and screws, and a connector (not shown) is provided on the rear side. The printed circuit board 43 is attached to the vicinity of the upper center of the printed circuit boards 41 and 42 perpendicularly to the printed circuit boards 41 and 42, and an LED (light emitting diode) is mounted.

  The case 5 is housed in the rear of the printed circuit board portion 4 and has an opening 51 for exposing the connector of the printed circuit board 42 on the rear surface, and a plurality of air holes 52 and 53 on the upper and lower surfaces. , Holes 56 are provided. A screw 55 is inserted into the hole 56.

  The case 6 stores the front of the printed circuit board unit 4 and is connected to the case 5. The case 6 has an opening 61 on the front surface, a hole 62 at the bottom of the opening 61, a plurality of air holes 63 and 64 on the upper and lower surfaces, and a plurality of light guide holes 65 on the surface on which the vertical surface behind the upper surface is formed. The stud 66, the sheet metals 67 and 68, and the screw 69 are provided. The opening 61 exposes the connector 412 of the printed circuit board 41. The light guide hole 65 guides the LED light of the printed circuit board 43 to the front surface. The stud 66 is inserted into the hole 62, and the screw 34 is screwed. The screw 69 is screwed to the stud 66. Note that the cases 5 and 6 constitute a casing, and the cross sections of the cases 5 and 6 are shown in FIG.

  The backboard 7 is provided with a plurality of connectors 71 and a plurality of screw holes 72. The connector 71 is connected to the connector of the printed circuit board 42.

  Next, a specific configuration of the sheet metals 54, 67, and 68 will be described with reference to FIG. 2 in which the cases 5 and 6 are omitted.

  In the drawing, the sheet metal 54 is formed in a substantially U shape by a metal plate material, and holes are provided in the arm portions 541 and 542. The screw 55 is inserted into the hole of the arm portion 541 in front of the sheet metal 54. The screw 57 is inserted into the hole of the arm portion 542 behind the sheet metal 54 and is screwed into the screw hole 72. The metal plate 67 is formed of a metal plate material into a square box shape having substantially no upper and lower surfaces, and has a hook portion 671 to be inserted into the air hole 64 at the rear, a hole 672 in the front plate, and a screw hole 673 in the rear plate. . A screw 69 is inserted into the hole 672. The screw 55 is screwed into the screw hole 673. The metal plate 68 is formed of a metal plate material in a substantially U shape by a main body portion 680 and arm portions 681, 682, and has sleeve portions 683, 684, screw holes 685, 686, and a hook portion 687. The arm portions 681 and 682 are formed perpendicular to both ends of the main body portion 680. The sleeve portions 683 and 684 are formed perpendicular to the inner direction of the arm portions 681 and 682, and are provided with screw holes 685 and 686, respectively, to which the fixing screw 35 of the socket 3 is screwed. The hook portion 687 is formed perpendicularly to the opposite side of the sleeve portion 684 of the arm portion 682, that is, outside the U-shape, is formed with a notch portion 688 at the end portion, and a rectangular box-shaped front of the sheet metal 67 Is inserted into the box-shaped interior. The notch 688 avoids the head of the screw 69.

  The assembling operation of such an apparatus will be described. The stud 66 is inserted into the hole 62, and the hook portion 671 of the sheet metal 67 is inserted into the air hole 64 and attached to the case 6. The screw 69 is inserted into the hole 672 of the sheet metal 67, and the stud 66 and the sheet metal 67 are screwed with the screw 69. Next, the sheet metal 68 is inserted into the case 6, and the hook portion 687 of the sheet metal 68 is hooked and fixed to the sheet metal 67.

  Next, the printed board portion 4 is inserted into the case 5, the case 6 is attached to the case 5, and the business trip surface 411 of the printed board portion 4 is inserted into the sheet metal 67. The screw 55 is inserted into the hole of the arm portion 541 of the sheet metal 54 and the hole 56 of the case 5, and screwed to the screw hole 673 of the sheet metal 67. As a result, the state shown in FIG. 3 is obtained. Here, FIG. 3 is a view in which a colored transparent cover is attached to the light guide hole 65 of the case 6.

  The cases 5 and 6 in FIG. 3 are attached to the backboard 7 to connect the connector of the printed circuit board 42 and the connector 71. The screw 57 is inserted into the hole of the arm portion 542 of the sheet metal 54 and the hole (not shown) of the case 5, and the screw 57 is screwed into the screw hole 72.

  The connector 31 of the socket 3 is connected to the connector 412, and the fixing screw 35 is screwed into the screw holes 685 and 686 of the sheet metal 68. At this time, as shown in FIG. 4, the sheet metal 68 slides back and forth, up and down, and left and right with a certain clearance from other parts (case 6, sheet metal 67, printed circuit board portion 4), and is fixed to the fixing screw 35. Align with holes 685,686. Then, the shield wire 33 is fixed to the stud 66 using the screw 34. As a result, the shield wire 33 is electrically connected to the backboard 7 via the stud 66, screw 69, sheet metal 67, screw 55, sheet metal 54, and screw 56, and is connected to the ground of the backboard 7.

  In this way, the sheet metal 68 slides back and forth, up and down, and left and right, and is aligned with the screw holes 685 and 686 of the fixing screw 35 of the socket 3, thereby preventing stress load on the connection portion between the socket 3 and the connector 412 and suppressing disconnection. can do.

  Further, since the fixing screw 35 of the socket 3 is screwed by the screw holes 685 and 686 of the sheet metal 68, an effective area for circuit mounting of the printed circuit board 41 can be ensured.

  Further, since the metal plate 67 for ground connection is formed in a box shape having no upper and lower surfaces, the business trip surface 411 of the printed circuit board 41 can be inserted, and an effective area for circuit mounting of the printed circuit board 41 can be secured. Further, since the lower portion of the case 6 is not blocked by the attachment of the stud, the air hole 64 can be provided in the lower surface of the case 6 and the cooling performance can be improved.

  Next, another embodiment of the sheet metals 67 and 68 will be described with reference to FIG. Here, the same components as those shown in FIG.

  In FIG. 5, the sheet metal 8 is provided instead of the sheet metal 68, and is formed in a substantially U shape by a main body portion 80 and arm portions 81, 82 by a metal plate material, and sleeve portions 83, 84, screw holes 85, 86, a hook portion 87. The arm portions 81 and 82 are formed vertically at both ends of the main body portion 80. The sleeve portions 83 and 84 are formed perpendicularly to the inner side of the arm portions 81 and 82 and are provided with screw holes 85 and 86 to which the fixing screw 35 of the socket 3 is screwed, respectively. The hook portion 87 is formed perpendicular to the opposite side of the sleeve portion 84 of the arm portion 82, that is, outside the U shape, has a notch portion 88, and has a projection portion 871 inserted into the air hole 64 at the end portion. As shown in FIG. 6, it has a hole 872 into which a screw 69 is inserted. The notch portions 88 are formed on both sides of the connecting portion between the arm portion 82 and the hook portion 87. The metal plate 9 is provided in place of the metal plate 67, and is formed of a metal plate material in a substantially C-shaped box shape having substantially no upper and lower surfaces and open at the front, and hooking portions 91 and 92 inserted into the air holes 64 at the rear. The arm portions 93 and 94 are provided at the front, the reinforcing portion 95 for connecting the side plates to the lower surface, and the screw holes 96 are provided at the rear plate. The arm parts 93 and 94 are inserted into the notch part 88. The screw hole 96 is screwed with the screw 55 shown in FIG.

  The assembling operation of such an apparatus will be described with reference to FIG. As shown in FIG. 6, the stud 66 is inserted into the hole 62, the protrusion 871 of the hook portion 87 of the sheet metal 8 is inserted into the air hole 64 of the case 6, and the sheet metal 8 is attached to the case 6. Then, a screw 69 is inserted into the hole 872 of the hooking portion 87 of the sheet metal 8, and the stud 66 and the sheet metal 8 are screwed with the screw 69. Next, as shown in FIG. 5, the sheet metal 9 is inserted into the case 6, and the arm portions 93 and 94 of the sheet metal 9 are inserted into the cutout portions 88 to fix the sheet metal 9 to the sheet metal 8. The difference between the apparatus shown in FIG. 1 and the apparatus shown in FIG. 5 is that the sheet metal 68 can be slid, but the sheet metal 8 is different only in that it is fixed, and other assembly operations are the same as the apparatus shown in FIG. Omitted.

  The present invention is not limited to this, and the configuration in which the stud 66 is provided is shown. However, the sheet metal 67 is provided with a screw hole in which the shield wire 33 is screwed by the screw 34 instead of the hole 672. If the length of the sheet metal 67 in the longitudinal direction is increased and brought into contact with the front surface of the case 61, the structure without the stud 66 may be used. In this case, the apparatus shown in FIG. 1 is configured such that the hooking portion 687 of the sheet metal 68 is eliminated and the sheet metal 67 is inserted into the sheet metal 68 and fixed.

  The socket 3 may be configured without the shield wire 33. In this case, in the apparatus shown in FIG. 1, it is not necessary to provide the stud 66, the sheet metals 54, 67, and the like.

  Moreover, although the metal plates 68 and 8 showed the structure which provided the arm part 681,682,81,82, the arm part 681,682,81,82 is eliminated, and the structure of only the sleeve part 83,84,683,684 is also possible. Good. Alternatively, a configuration in which the flat plate is formed in a substantially U shape, has no arm portion, and has a screw hole without bending the sleeve portion may be employed.

  Moreover, although the printed circuit board part 4 which consists of the printed circuit boards 41-43 was shown, the structure only of the printed circuit board 41 may be sufficient as the printed circuit board part 4. FIG.

  And although the structure which inserts the hook parts 671,672,91,92 in the air hole 64 was shown, the structure which provides not only the air hole 64 but the case 6 in the case 6 may be sufficient.

3 Socket 33 Shield wire 35 Fixing screw 4 Printed circuit board part 41, 42 Printed circuit board 412 Connector 5, 6 Case 61 Opening 67, 68, 8, 9 Sheet metal 80, 680 Main body part 81, 82, 681, 682 Arm part 83, 84 , 683,684 Sleeve 85,86,685,686 Screw hole 7 Backboard 71 Connector

Claims (7)

In electronic devices where the socket to which the cable is connected is attached to the connector by screwing,
A printed circuit board portion on which the connector is provided forward;
A housing having the printed board portion stored therein and an opening through which the connector is exposed on the front surface;
An electronic apparatus comprising: a first sheet metal provided inside the housing and having a screw hole to which the socket is screwed.   The electronic apparatus according to claim 1, wherein the first sheet metal can be slid. The first sheet metal is
The main body,
The electronic apparatus according to claim 1, further comprising a sleeve portion provided at both ends of the main body portion and having the screw hole. The first sheet metal is
The main body,
Arms formed perpendicular to both ends of the main body,
The electronic apparatus according to claim 1, further comprising a sleeve portion formed perpendicular to the arm portions and having the screw holes. The housing is
A first case for storing the back of the printed circuit board unit;
5. The electronic apparatus according to claim 1, further comprising: a second case connected to the first case, storing the front of the printed circuit board portion, and providing the opening on a front surface.   The second case is provided in a lower part of the second case, is formed in a box shape having substantially no upper and lower surfaces, and has a second sheet metal that is electrically connected to the shield wire of the socket and electrically connected to the ground. The electronic device according to claim 5.   The electronic apparatus according to claim 1, further comprising a second connector that is provided behind the printed board portion and is connected to a connector of a backboard.

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