JPH04219995A - Electronic equipment - Google Patents

Abstract

PURPOSE:To make the title device lightweight by a method wherein independent side-face members are coupled direclty to each other, a side-face enclosure by a frame constitution is formed and an upper cover and a lower cover are covered from the upper and lower directions of the side-face enclosure. CONSTITUTION:A connector-holding plate 15 and a side plate 13 are coupled by using a screw 52; the connector-holding plate 15 and a side plate 13 are coupled by using a screw 51. A heat sink 16 on which a power-supply part is to be mounted and the side plate 12 are coupled by using a screw 53; the heat sink 16 and the side plate 13 are coupled by using a screw 54. In this manner, a side-face enclosure part 20 by a frame structure for an electronic equipment 10 is formed. A circuit board is held by protrusion parts 12K and 13K, for circuit board-holding use, which are formed on inside faces of the side plate 12 and the side plate 13. In addition, an upper cover 31 and a lower cover 32 are fixed to the side plates 12, 13 by using screws.

Description

[Detailed description of the invention]

0001

[Table of Contents] The present invention will be explained in the following order. Industrial application field Conventional technology Problems to be solved by the invention Means for solving the problem (Figures 1 and 2) Effect (Figure 1
and Figure 2) Examples (Figures 1 to 5) Effects of the invention

0002

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to electronic equipment, and is suitable for application to, for example, information transmission terminal equipment having a predetermined housing structure and designed to be mounted on an aircraft.

0003

2. Description of the Related Art Conventionally, for example, in a passenger aircraft, it has been considered to provide a predetermined information terminal device in each seat to provide various information to each passenger.

[0004] This information terminal equipment is configured to display movies or various information on small screens placed at each seat, based on signals from an information signal generator. A circuit for demodulating the transmitted signal is formed on a predetermined circuit board, and this circuit board is screwed to the chassis.

[0005] Further, an outer plate constituting the casing of the information terminal device is screwed to the chassis, and the chassis has a box-like structure as a whole.

[0006]

[Problems to be Solved by the Invention] However, in this type of aircraft-mounted electronic equipment, it is desired to reduce the weight as much as possible, especially when information terminal equipment is to be installed in each seat. Since the number of information terminal devices required for each seat increases the overall weight, each device must be made even lighter.

[0007] Furthermore, when such a large number of information terminal devices are provided, there is a problem in that maintenance work such as replacing the circuit board of each device becomes long.

The present invention has been made in consideration of the above points, and it is an object of the present invention to propose an electronic device that can be further reduced in weight and that can improve workability such as replacing circuit boards.

[0009]

[Means for Solving the Problem] In order to solve the problem, in the first invention, a side member 12 that is independent,
13, 15, and 16 are directly connected to each other to form a side housing 20 having a frame structure, and an upper cover 31 and a lower cover 3
2 is covered from above and below the side casing to form the casing as a whole.

Further, in the second aspect of the invention, protrusions 12K and 13K for holding circuit boards are formed on the inner surfaces of the pair of opposing side members 12 and 13, respectively, so that predetermined circuit boards 21, 22, 23, 24 is slidably inserted between the pair of side members 12 and 13 while being held by the projections 12K and 13K.

[0011]

[Operation] Independent side members 12, 13, 15 and 1
6 are directly coupled to each other to form the side housing part 20, and the side housing part 20 is covered with an upper cover 31 and a lower cover 32, and the circuit boards 21, 22 are attached to the side housing part 20.
, 23 and 24 in a sliding manner and fixing them, the chassis to which the side members 12, 13, 15 and 16 and the circuit boards 21, 22, 23 and 24 are screwed can be omitted. , it is possible to further reduce the weight of the electronic device 10 by this amount.

0012

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings.

In FIG. 1, reference numeral 10 indicates an electronic device which is designed to be mounted on an aircraft, and a connector holding plate 15 is screwed to side plates 12 and 13 by screws 51 and 52.

This connector holding plate 15 has a protrusion 15A formed with a screw hole 15C connected to the screw fixing protrusion 1 of the side plate 13.
3A so that the screw holes 13B and 15C are aligned, and the upper and lower ends 15E of the projection 15A
and 15F to the fixing protrusions 13C and 13D of the side plate 13.
By sandwiching the side plate 1 of the connector holding plate 15
3 and temporarily fix it, and then tighten it with screw 52.
It is designed to be fixed with screws.

Similarly, the connector holding plate 15 has a protrusion 15B formed with a screw hole 15D in contact with a screw fixing protrusion 12A of the side plate 12, and also connects the upper and lower ends 15G and 15H of the protrusion 15B to the screw fixing protrusion 12A of the side plate 12. Fixing protrusion 12
By sandwiching the connector holding plate 15 between C and 12D, the connector holding plate 15 is positioned relative to the side plate 12 and temporarily fixed, and this is screwed using the screws 51.

Further, the heat sink panel 16, which is adapted to mount the power source, has a protrusion 16A formed with a screw hole 16C in contact with a screw fixing protrusion 12F formed on the side plate 12. Upper and lower ends 1 of section 16A
6E and 16F to the fixing protrusions 12H and 1 of the side plate 12.
By sandwiching the heat dissipating plate 16 between the side plates 2I, the heat dissipating plate 16 is positioned with respect to the side plate 12 and temporarily fixed, and then this is screwed with the screws 53.

Similarly, the heat dissipation plate 16 has the protrusion 16B in which the screw hole 16D is formed in contact with the screw fixing protrusion 13F formed on the side plate 13, and the protrusion 16
By sandwiching the upper and lower ends 16G and 16H of B between the fixing protrusions 13H and 13I of the side plate 13, the heat sink 16
is positioned with respect to the side plate 13 and temporarily fixed, and this is screwed with screws 54.

In this manner, the connector holding plate 15 and the heat sink 16 are fixed to the side plates 12 and 13, forming the side housing portion 20 of the frame structure of the electronic device 10 as a whole.

Here, as shown in FIG. 2, side plates 12 and 1
3 has circuit boards 21, 22, 23 and 24 on its inner surface.
As shown in FIG.
3K to hold the first to fourth circuit boards 21 to 24.

[0020] The first to fourth circuit boards 21 to 24 are
With the connector holding plate 15 removed, slide and insert it between the board holding protrusions 12K and 13K, and stoppers 12L, 12M, and 12N formed on the side plate 12.
(FIG. 1), and after positioning by bringing the tip into contact with a stopper of the same shape formed on the side plate 13 corresponding thereto, as shown in FIG. Connecting board 25 for connectors 21A to 24A
By inserting the corresponding connectors 25A to 25D, the coupling board 25 is connected to each circuit board 21 to 24.
join to.

The flexible substrate 2 is attached to this bonding substrate 25.
One end of the flexible substrate 6 is electrically and mechanically coupled to the other end of the flexible substrate 26, and a connector forming member 27 is electrically and mechanically coupled to the other end of the flexible substrate 26.

Therefore, after folding back the flexible substrate 26, the connector holding plate 15 is screwed to the side plates 12 and 13 with the coupling substrate 25, the flexible substrate 26, and the connector forming member 27 sandwiched therebetween, thereby forming the connector 27A as an external terminal. Predetermined signals can be input to and output from the circuit boards 21 to 24 via the circuit boards 21 to 27D.

Further, after fitting the spacers 28A, 28B, 28C and 28D into the respective recesses into the ends of the circuit boards 21-24,
By screwing this to the circuit board, a predetermined gap is maintained between the adjacent circuit boards 21 to 24, respectively, as shown in FIG. Circuit elements provided on the circuit board are prevented from coming into contact with each other.

Furthermore, the power supply unit of the electronic device 10 is fixed to the heat sink 16 screwed to the side plates 12 and 13, and the outer surface of the heat sink 16 is exposed to the outside. Through this, heat generated from the power supply unit is released to the outside.

After fixing the circuit boards 21 to 24, the connector parts (25, 26, 27, 15) and the power supply unit part (16) by the side plates 12 and 13 in this way, FIG.
As shown in FIG.
, 56, 57 and 58 to the side plates 12 and 13.

Here, the upper cover 31 and the lower cover 32 have fastening engagement parts 31A, 31B, 31C, 31 for screwing.
D, 32A, 32B, 32C, and 32D are formed respectively, and these fastening engagement parts 31A to 31D and 32A to
As shown in FIG. 5, 32D has a concave and convex shape so that they can be fitted into each other, and each fastening engagement part has a semicircular groove 31 on the end face portion that is in contact with each other.
E, 31F, 31G, 31H and 32E, 32F, 32
G, 32H are formed, and when the upper cover 31 and the lower cover 32 are fitted together at the fastening engagement part,
Grooves 31E and 32E of the upper cover 31 and lower cover 32
, 31F and 32F, 31G and 32G, 31H and 3
Through holes 2H are formed through which screws 56, 58, 55, and 57 pass, respectively.

Therefore, the screws 55 to 58 are inserted through the through holes.
Screw holes 12E, 12J and 13E on side plates 12 and 13
, 13J, the upper cover 31 and lower cover 32 can be fastened and fixed to the side plates 12 and 13.

Here, the upper cover 31 and the lower cover 32 have bent portions 31I, 31J, 31K, which are bent at right angles.
31L, 32I, 32J, 32K, and 32L are formed, and when the upper cover 31 and the lower cover 32 are fixed to the side plates 12 and 13, the bent portion 31I of the upper cover 31 touches the upper end of the connector holding plate 15. The bent portion 31L is engaged to cover the upper end of the side plate 12, the bent portion 31K is engaged to cover the upper end of the side plate 13, and the bent portion 31J is engaged to cover the upper end of the side plate 13. 16, and the lower cover 32
The bent portion 32I is engaged to cover the lower end of the connector holding plate 15, the bent portion 32L is engaged to cover the lower end of the side plate 12, and the bent portion 32K is engaged to cover the lower end of the side plate 13. The bent portion 32J is engaged so as to cover the heat sink 16.
It is adapted to be engaged so as to cover the lower end of the.

Therefore, by fixing the upper cover 31 and the lower cover 32 to the side housing portion 20 constituted by the side plates 12 and 13, the connector holding plate 15, and the heat sink 16,
Bent parts 31I to 31 of the upper cover 31 and lower cover 32
By covering the side body part 20 with L and 32I to 32L, deformation of the side body part 20 due to a force applied to the side body part 20 from an oblique direction is avoided. being done.

In the above configuration, the electronic equipment device 10 constitutes the side plate casing part 20 by directly coupling the side plates 12 and 13, the connector holding plate 15, and the heat sink 16, respectively. Upper cover 31
and bent portions 31I to 31L and 32I of the lower cover 32
By covering these with ~32L, the side plates 12 and 13, the connector holding plate 15, and the heat dissipation plate 16 are not required to be provided separately as in the conventional case, while maintaining a predetermined strength. A housing for the electronic device 20 can be formed.

Further, the circuit boards 21 to 24 are connected to the side plates 12 and 1.
It is inserted in a sliding manner between 3 and stoppers 12L to 12N.
Correspondingly, the circuit is positioned by a stopper formed on the side plate 13 and fixed by the connector holding plate 15 via the bonding board 25, flexible board 26, and connector forming member 27. The circuit boards 21 to 24 can be held and fixed to the side housing portion 20 without using a chassis designed to screw the boards.

[0032] In this way, since a chassis is not used, the weight of the electronic device 10 as a whole can be further reduced.

According to the above configuration, the weight of the electronic device 10 can be further reduced by configuring the casing without using a chassis member, and the overall weight can be further effectively reduced when mounted on each seat of an aircraft or the like. can be converted into

Incidentally, the flexible board 26 is used to connect the connectors 27A to 27D provided on the same plane (27) to the respective connectors 21A to 24A on the circuit boards 21 to 24 arranged hierarchically. By doing so, the electronic equipment device 20 can be further downsized.

Further, the circuit boards 21 to 24 are attached to the side plates 12 and 1.
By inserting it in a sliding manner between the three, it is possible to further improve the efficiency of maintenance work such as replacing a predetermined circuit board.

[0036] In the above-described embodiment, a case has been described in which the side casing portion 20 is formed by the side plates 12 and 13, the connector holding plate 15, and the heat sink 16, but the present invention is not limited to this. The side housing portion 20 may be formed by combining various constituent members.

Furthermore, in the above-described embodiments, the present invention was applied to an electronic device installed on an aircraft, but the present invention is not limited to this, and can be applied to various other electronic devices. Can be widely applied.

[0038]

As described above, according to the present invention, independent side members are directly connected to each other to form a side casing, and the side casing is covered with an upper cover and a lower cover. By slidingly inserting and fixing the circuit board into the side casing, the chassis to which the side member and the circuit board are screwed can be omitted, and the weight of the electronic device can be further reduced. can be realized.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of an electronic device according to the present invention.

FIG. 2 is a schematic perspective view showing the detailed configuration of a circuit board and a connector section.

FIG. 3 is a schematic cross-sectional view for explaining how to hold a circuit board.

FIG. 4 is a schematic cross-sectional view for explaining the connection between the circuit board and the connector part.

FIG. 5 is a perspective view illustrating how to attach the upper cover and the lower cover.

[Explanation of symbols]

10...Electronic device, 12, 13...Side plate, 12K,
13K...Protrusion for holding circuit board, 15...Connector holding plate, 16...Radiation plate, 20...Side housing part, 28A,
28B, 28C, 28D...spacer, 31...upper cover, 32...lower cover.

Claims (2)

[Claims] Claim 1: A side casing having a frame structure is formed by directly joining independent side members, and an overall casing is formed by covering the side casing with an upper cover and a lower cover from above and below. An electronic device characterized by: 2. Projections for holding a circuit board are formed on the inner surfaces of a pair of opposing side members, and a predetermined circuit board is held by the projections and slides between the pair of side members. An electronic device characterized by being inserted into a.