JP2003298274A - Electronic equipment casing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simplify a shield structure and to obtain sufficient strength. <P>SOLUTION: A casing is provided with a case body 1 in which inner side plates 7 are oppositely erected at both ends of a base plate 6 and front/back sides and an upper side are opened and with an upper cover 2 where outer side plates are oppositely erected at both ends of a top plate 19, a front plate 21 is arranged on a front side of the top plate 19, a back side and a base side are opened, the outer side plates are disposed on outer faces of the inner plates 7, an opening at an upper side of the case body 1 is covered by the top plate 19 and an opening at the front side of the case body 1 is covered by the front plate 21. A beam material 8 for reinforcement is arranged at the base plate 6 between the inner side plates 7 of the case body 1. A front panel 29 blocking an insertion hole part 21a is disposed in a circuit unit 3 inserted into the case body 1 from the insertion hole part 21a of the front plate 21, and a shield spring 16 is given between the front panel 29 and the insertion hole part 21a. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a housing for electronic equipment provided with a shield structure for shielding electromagnetic waves from the outside or to the outside.

[0002]

2. Description of the Related Art FIG. 6 is a perspective view showing an example of a conventional electronic equipment casing. As shown in FIG. 6, the conventional electronic device casing mainly includes a case body 51, an upper cover 52, and
The front plate 53 and the rear plate 54 are made of sheet metal. The case main body 51 has a bottom plate 51a and both inner plates 51b, and has a substantially U-shaped cross-section with openings on the front side, the rear side, and the upper side. A substrate 55 is housed inside the case body 51.

The upper cover 52 has a top plate 52a and both outer plates 52b, and has a substantially U-shaped cross section with openings on the front side, the rear side, and the bottom side. The upper cover 52 is formed on the outer surface of each inner plate 51b of the case body 51 so that the upper side of the case body 51 is covered with the top plate 52a.
Is attached to each of the inner side plates 51b and each of the outer side plates 52b with screws to attach the case body 51. As described above, by attaching the upper cover 52 to the case body 51, the front side and the rear side are opened.

The front plate 53 closes the front opening formed by attaching the upper cover 52 to the case body 51. The front plate 53 is provided with an insertion hole portion 53a into which the substrate 55 is inserted. The substrate 55 is the case body 51.
Front panel 5 that closes the insertion hole 53a when housed inside
5a.

The rear plate 54 closes the rear opening formed by attaching the upper cover 52 to the case body 51. The rear plate 54 is provided with a connection connector 54a to which a connector 55b provided on a substrate 55 housed in the case body 51 is connected.

A shield structure for shielding electromagnetic waves from or to the outside is provided at the front opening and the rear opening formed by the case body 51 and the upper cover 52. In this shield structure, shield springs 56 are attached to the inner edge of the front opening and the inner edge of the rear opening. The shield spring 56 contacts the front plate 53 and the rear plate 54 by its elastic force when the front plate 53 and the rear plate 54 are attached. A shield spring 56 that contacts the front panel 55a is attached to the insertion hole portion 53a of the front plate 53. As a result, a shield is formed in each part to prevent noise emission.

[0007]

However, in the above-mentioned conventional electronic equipment casing, the shield structure between the front opening and the front opening portion formed of the case body 51 and the upper cover 52, and the front plate 53. Insertion hole 53a and substrate 5
5 requires a shield structure between the front panel 55a and the front panel 55a, so that the number of components for the shield increases, and the number of manufacturing steps and the manufacturing cost increase.

Further, in the case of the conventional electronic equipment, the case body 51 has a hollow inside and forms the outer shape of the case.
Since the strength is controlled by the sheet metal of the upper cover 52, the front plate 53, and the rear plate 54, there is a problem that sufficient strength cannot be obtained. In particular, in recent years, electronic devices have been made thinner, and the bottom plate 51a and the top plate 52a are formed wider than the height formed by the inner plate 51b and the outer plate 52b. The strength will decrease.

In order to solve the above problems, the present invention has an object to provide a housing for electronic equipment which simplifies the shield structure and can obtain sufficient strength.

[0010]

In order to achieve the above object, the electronic equipment casing according to claim 1 according to the present invention comprises a bottom plate 6.
Case main body 1 having inner plates 7 standing upright at both ends of the top plate and having openings on the front side, rear side, and upper side, and outer sides standing upright at both ends of a top plate 19. A plate 20 is provided and a front plate 21 is provided on the front side of the top plate 19, and the rear side and the bottom side are opened. The outer plates 20 are attached to the outer surface of the inner plates 7 and A plate 19 closes the upper opening of the case body 1 and a front plate 21 closes the front opening of the case body 1 and the inner plate 7 of the case body 1 connected to each other. The beam member 8 is provided upright on the bottom plate 6 so as to be installed, a front panel 29 and a substrate 27, and the front panel 2 is provided on one end side of the substrate 27.
A circuit unit 3, which is provided with a cover 9 and is inserted into the case body 1 from an insertion hole portion 21a formed in the front plate 21 of the upper cover 1 to close the insertion hole portion 21a; Between the power supply unit 4 that is inserted into the case body 1 from the rear side opening formed by the upper cover 2 to supply power to the circuit unit 3, the upper end of each inner plate portion 7 and the top plate 19, Surrounding the circuit unit 3 is interposed between the upper end of the beam member 8 and the top plate 19, between the top plate 19 and the front panel 29, and between the bottom plate 6 and the front panel 29, respectively. And the shield member 16 arranged as described above.

An electronic equipment casing according to a second aspect is the electronic equipment casing according to the first aspect, wherein the beam member 8 is connected to the circuit side connector 9 to which the circuit unit 3 is connected.
a and a power supply side connector 9b to which the power supply unit 4 is connected.

According to a third aspect of the present invention, there is provided an electronic device casing according to the first or second aspect, wherein:
The beam member 8 has a ventilation hole 8d for ventilation from the circuit unit 3 to the power supply unit 4 via a cooling fan 36b arranged in the power supply unit 4. .

An electronic equipment casing according to claim 4 is the electronic equipment casing according to any one of claims 1 to 3, wherein the ventilation hole portion 8d of the beam member 8 and the beam are provided. A slit hole 17 provided at the upper end of the material 8 is provided, and the shield member 16 is inserted and attached.

An electronic equipment casing according to a fifth aspect is the electronic equipment casing according to any one of the first to fourth aspects, wherein the ventilation hole portion 8d of the beam member 8 and the upper portion are provided. The ventilation hole 8d is provided on the top plate 19 of the cover 2.
And a locking piece 22a that is inserted into and locked in.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a perspective view showing a case body of an electronic device casing of the present invention, FIG. 2 is a perspective view showing an upper cover of the electronic device casing, and FIG. 3 is a circuit unit in the electronic device casing. FIG. 4 is a perspective view showing a power supply unit in the electronic device casing, and FIG. 5 is a sectional view showing an assembled state of the electronic device casing.

As shown in FIGS. 1 to 5, the electronic device casing according to the present embodiment mainly includes a case main body 1 and an upper cover 2, and a circuit unit 3 and a power supply unit 4 therein. To store.

First, as shown in FIG. 1, the case body 1
Is made of sheet metal, has inner plates 7 that are vertically bent at opposite ends of the bottom plate 6 and stand upright, and has a substantially U-shaped cross-section with the front side, rear side, and upper side open. . A beam member 8 made of sheet metal is erected in the middle of the upper surface of the bottom plate 6. The beam member 8 has a substantially U-shaped cross-section opening to the rear side and is formed in a longitudinal shape on both sides. It is fixed on the upper surface. As a result, a vertical standing piece 8b, which is continuously provided between the inner plates 7 and divides the bottom plate 6 into a front side and a rear side, and a horizontal upper piece 8c bent at the upper end of the standing piece 8b. Is formed. Further, a plurality of rectangular ventilation holes 8d are bored along the longitudinal direction on the upper end side of the vertical standing piece 8b of the beam 8.

A connecting substrate 9 is fixed to the beam member 8. The connection board 9 has a circuit side connector 9a on one surface and a power source side connector 9b on the other surface. The connection board 9 is fixed to the rear side of the standing piece 8b of the beam member 8, and the circuit-side connection connector 9a is exposed to the front side of the standing piece 8b through the hole formed in the standing piece 8b. The connector 9b is exposed on the rear side of the standing piece 8b. The connection board 9 electrically connects the circuit-side connection connector 9a and the power-supply-side connection connector 9b at the beam member 8 portion to which the connection board 9 is fixed.

A partition 10 is provided on the upper surface of the bottom plate 6 in parallel with the inner plate 7 and orthogonal to the beam 8. The partition portion 10 divides the bottom plate 6 into both sides.
The beam member 8 is integrally formed on the left and right sides, and the partition portion 10 is divided into front and rear parts. The connection board 9 is integrated on the left and right like the beam member 8, and has a circuit-side connection connector 9a and a power-supply-side connection connector 9b on the left and right, respectively, with the partition 10 interposed therebetween. Further, the connection board 9 electrically connects the left and right circuit side connection connectors 9a and the left and right power supply side connection connectors 9b.

At the front end of the bottom plate 6, a stepped portion 11 is formed at a position slightly higher than the top surface of the bottom plate 6 so as to have a flat upper surface in a laterally elongated shape. There is.

At the upper end of each inner plate 7, there is formed an upper piece 7a which is horizontally bent so as to face each other.
The upper piece 7a is formed so as to cover the upper surfaces of both ends of the upper piece 8c of the beam member 8. A ventilation hole 7b is formed in each inner plate 7.

A locking piece 12 is provided on the upper piece 7a of each inner plate 7 and the partition section 10. The locking piece 12 is extended to the front side at each of the front end portions on the upper side of the upper piece 7a and the partition portion 10. Further, the locking piece 12 is provided at the rear end portion on the upper side of the partition portion 10 so as to extend to the front side in the bored hole portion.

On the inner surface of each inner plate 7 and on each surface of the partition 10 facing the inner surface of each inner plate 7, a plurality of upper and lower guide pieces 13 are provided along the front-rear direction.
The guide piece 13 is formed by notching and bending the sheet metal of the inner side plate 7.

Fixing pieces 14 formed by bending a sheet metal are formed at the front end and the rear end of each inner plate 7 and the partition 10.

In the case body 1 formed as described above,
A shield structure for shielding electromagnetic waves from the outside or the outside is arranged. Specifically, the upper piece 7a of each inner plate 7
A plurality of them are arranged on the upper piece 8c of the beam member 8 and the upper surface of the step portion 11. This shield structure has an upper piece 7a of each inner plate 7.
On the upper surface of the stepped portion 11, a substantially C-shaped shield spring 16 (shield member) is attached to the pair of slit holes 15 by inserting the open ends thereof. Further, the upper piece 8c of the beam member 8 has a slit hole 17 corresponding to the ventilation hole 8d, and the shield spring 16 having a substantially C-shape is provided for the upper end edge of the ventilation hole 8d and the slit hole 17. It is attached by inserting each open end. As a result, a plurality of shield springs 16 are provided in a substantially U-shape in which the upper piece 8c of the beam 8 is continuous from the front end of the upper piece 7a of the inner plate 7, and the shield is provided along the upper surface of the step 11 at the front end of the bottom plate 6. A plurality of springs 16 are provided.

Next, as shown in FIG. 2, the upper cover 2
Is made of sheet metal, has outer plates 20 standing upright at opposite ends of the top plate 19 and has a substantially U-shaped cross section, and has a front plate 21 on the front side of the top plate 19, It is formed so that the rear side and the bottom side are open. An engaging portion 22 made of sheet metal is provided in the middle of the lower surface of the top plate 19. The locking portion 22 is formed laterally in a longitudinal shape and has a plurality of locking pieces 22a extending rearward along the longitudinal direction.

An engaging portion 23 having an engaging hole 23a is formed at the center of the rear end of the top plate 19 so as to hang down.

Further, at the front end of the top plate 19, a step portion 2 having a flat lower surface at a position slightly lower than the lower surface of the top plate 19 is formed.
4 is formed laterally in a longitudinal shape. Also, the step 2
On the rear side of the No. 4, locking holes 24a are formed at the positions of the center and each end in the longitudinal direction.

Ventilation holes 20a corresponding to the ventilation holes 7b provided in the inner plates 7 of the case body 1 are formed in each outer plate 20.

An insertion hole 21a is formed in the front plate 21. The circuit unit 3 described later is inserted into the insertion hole 21a. The insertion hole portion 21a in the present embodiment is
It is provided in two places according to the front side of the part divided by the partition part 10 in the case body 1. A locking piece 21b that is horizontally bent is formed at the lower end of the front plate 21.

On the upper cover 2 formed as described above,
A shield structure for shielding electromagnetic waves from the outside or the outside is arranged. Specifically, a plurality of them are arranged on the lower surface of the step portion 24. In this shield structure, a substantially C-shaped shield spring 16 (shield member) is attached to each of the pair of slit holes 25 on the lower surface of the step portion 24 by inserting each opening end.

Next, as shown in FIG. 3, the circuit unit 3
Is a connector 2 to be connected to a circuit side connector 9a provided on the beam member 8 of the case body 1 at the rear end portion of the substrate 27.
8 are provided. A front panel 29 that closes the insertion hole 21a of the front plate 21 of the upper cover 2 is provided at the front end of the substrate 27. The front panel 29 is made of sheet metal and is formed in a laterally elongated shape with a substantially U-shaped cross section having upper and lower pieces 29a and 29b so as to open to the rear side. On the front side of the front panel 29, various connectors 30a arranged on the substrate 27, an LED display section 30b, etc. are exposed. Fixing screws 31 are arranged at both ends of the front panel 29 in the longitudinal direction.

Next, as shown in FIG. 4, the power supply unit 4
Is a connector 3 to be connected to a power supply side connector 9b provided on the beam member 8 of the case body 1 at the front end of the substrate 32.
3 is provided. Further, the substrate 32 is provided with a shield case 34 that shields an electromagnetic wave from the outside or the outside with the front edge and the side edge of the substrate 32 exposed. A power source (not shown) is housed inside the shield case 34. On the front side of the shield case 34,
A ventilation hole 34a is formed. A rear panel 35 is formed on the rear side of the shield case 34. On the rear surface of the rear panel 35, various connectors 36a and a cooling fan 36b arranged on the substrate 32 are exposed. Fixing screws 37 are arranged at both ends of the rear panel 35 in the longitudinal direction.

In order to assemble the electronic device casing having the above structure, first, the outer plates of the upper cover 2 are placed outside the inner plates 7 of the case body 1 by covering the upper cover 2 from the upper side of the case body 1. 20 is attached. At this time, the upper cover 2 is slightly displaced to the front side with respect to the case body 1.

Next, the shifted upper cover 2 is moved to the rear side. As a result, as shown in FIG. 5, the locking piece 22a of the locking portion 22 provided on the top plate 19 becomes
It is inserted into the ventilation hole 8d provided in the beam member 8 and is locked to the upper edge of the ventilation hole 8d. Further, the respective locking holes 24a provided in the step portion 24 are inserted and locked into the respective inner plates 7 of the case body 1 and the locking pieces 12 provided at the front end portions of the partition portions 10. Further, while the locking portion 23 hanging from the rear end of the top plate 19 is inserted into the hole formed in the rear end of the partition 10 of the case body 1, the locking hole 23a is locked. 12 is inserted and locked. Further, the locking piece 21b at the lower end portion of the front plate 21 is locked to the step portion 11 of the bottom plate 6 downward.

Next, the case body 1 and the upper cover 2 are assembled by screwing the outer side plate 20 to the inner side plate 7 to form a hollow portion whose rear side is open. At this time, as shown in FIG. 5, the shield spring 16 provided on the upper piece 7a of the inner plate 7 and the upper piece 8c of the beam member 8 of the case body 1
But elastically contacts the lower surface of the top plate 19. Also, the outer plate 20
The ventilation hole 20a of the above is overlapped with the ventilation hole 7b of the inner plate 7 and communicates therewith.

Next, the circuit unit 3 is attached. The circuit unit 3 is inserted from the rear end side into the insertion hole 21a provided in the front plate 21 of the upper cover 2. The circuit unit 3 is inserted with the side edges of the board 27 being guided by the guide pieces 13 provided on the inner plates 7 and the partitioning section 10 of the case body 1. Then, as shown in FIG. 5, the connector 28 is connected to the circuit-side connection connector 9 a provided on the beam member 8 of the case body 1. Further, in the circuit unit 3, the front panel 29 is fitted into the insertion hole 21a of the front plate 21 to close the insertion hole 21a. At this time, the front panel 2
The upper and lower pieces 29a, 29b of 9 elastically contact the shield spring 16 provided on the step portion 24 of the upper cover 2 and the step portion 11 of the case body 1, respectively. And the front panel 2
The circuit unit 3 is fixed to the case body 1 by screwing a fixing screw 31 provided on the case 9 to the fixing piece 14 at the front end of the case body 1.

Next, the power supply unit 4 is attached. The power supply unit 4 is inserted from the front end side into the rear opening formed by the case body 1 and the upper cover 2. The power supply unit 4 is inserted with the side edges of the board 32 being guided by the guide pieces 13 provided on the inner plates 7 and the partitioning portion 10 of the case body 1. Then, as shown in FIG. 5, the connector 33 is connected to the power supply side connector 9b provided on the beam member 8 of the case body 1. In addition, the power supply unit 4
The rear panel 35 closes the rear opening. Then, the power supply unit 4 is fixed to the case body 1 by screwing the fixing screw 37 provided on the rear panel 35 to the fixing piece 14 at the rear end of the case body 1. At this time, the ventilation holes 34 a of the shield case 34 are not the ventilation holes 8 d of the beam member 8.
To face.

Since the upper cover 2 of the electronic device casing thus assembled has the front plate 21 integrally, it is not necessary to provide a shield structure corresponding to the front plate 21. As a result, on the front side, the steps 11, 24
A shield structure for shielding the front panel 29 of the circuit unit 3 by only disposing the shield spring 16 in the above is sufficient, and the number of parts for shielding is reduced and the configuration is simplified. The cost can be reduced.

Further, in the seal structure, the case body 1
Since the shield spring 16 is provided so as to surround the circuit unit 3 with the inner plate 7 and the beam member 8 and the stepped portion 24 of the upper cover 2, it is possible to sufficiently shield the circuit unit 3.

Further, since the beam member 8 is provided between the inner plates 7 of the case body 1, it is possible to obtain sufficient strength. This beam member 8 is a circuit side connector 9
The units 3 and 4 are connected by using a and a power supply side connector 9b. Further, the beam member 8 has a ventilation hole 8d.
With ventilation holes 7b, 20a and ventilation hole 3
Cooling from the circuit unit 3 side to the power supply unit 4 side is performed by the cooling fan 36b of the power supply unit 4 via 4a. In addition, the beam member 8 has the above-described shield structure and partially uses the ventilation hole 8d for attaching the shield spring 16. Further, the beam member 8 locks the locking piece 22a of the upper cover 2 using the ventilation hole 8d. As described above, the beam member 8 has not only the reinforcement for obtaining the electronic device casing with sufficient strength, but also has the connector connection structure, the ventilation structure, the shield structure, and the locking structure.

[0042]

As described above, in the electronic equipment casing according to the present invention, since the upper cover has the front plate, it is not necessary to provide the shield member according to the front plate. As a result, on the front side, it suffices to shield between the insertion hole portion and the front panel, the number of parts for shielding is reduced, and the configuration is simplified, so that the number of manufacturing steps and the manufacturing cost are reduced. It becomes possible.

Further, since the beam member is provided between the inner plates of the case body, sufficient strength can be obtained.

Since the beam member has the circuit side connector and the power source side connector, the circuit unit and the power source unit can be connected.

Further, since the beam member has the ventilation holes, it is possible to perform cooling from the circuit unit side to the power supply unit side by the cooling fan of the power supply unit.

Further, the beam member can have a shield member inserted therein by a slit hole provided at the upper end thereof and a ventilation hole portion.

Further, the beam member can lock the locking piece of the upper cover by using the ventilation hole.

As described above, the beam member can have not only reinforcement for obtaining sufficient strength in the electronic device casing, but also a connector connection structure, a ventilation structure, a shield structure, and a locking structure.

[Brief description of drawings]

FIG. 1 is a perspective view showing a case body of an electronic device casing of the present invention.

FIG. 2 is a perspective view showing an upper cover of the electronic device casing.

FIG. 3 is a perspective view showing a circuit unit in the electronic device casing.

FIG. 4 is a perspective view showing a power supply unit in the electronic device casing.

FIG. 5 is a cross-sectional view showing an assembled state of the electronic device casing.

FIG. 6 is a perspective view showing an example of a conventional electronic device housing.

[Explanation of symbols]

1 ... Case body, 2 ... Top cover, 3 ... Circuit unit,
4 ... power supply unit, 6 ... bottom plate, 7 ... inner plate, 8 ... beam,
8d ... Ventilation hole, 9a ... Circuit side connector, 9b ...
Power supply side connector, 16 ... Shield member, 17 ... Slit hole, 19 ... Top plate, 20 ... Outer plate, 21 ... Front plate, 21
a ... insertion hole, 22a ... locking piece, 29 ... front panel, 3
6b ... Cooling fan.

Continued front page    F-term (reference) 4E360 AB02 AB13 AB20 BA02 BA08                       BC05 EA12 EA18 ED03 ED23                       ED27 GA34 GA53 GB99 GC02                 5E321 AA01 AA03 AA14 BB44 GG05                 5E348 AA02 AA05 AA07 AA13 CC08                       CC09 EF38 EF42 FF03

Claims (5)

[Claims] 1. A case body (1) having inner plates (7) standing upright at opposite ends of a bottom plate (6) and having front, rear and upper sides opened, and a top plate. Each outer plate (2) standing upright at both ends of (19).
0) and a front plate (21) on the front side of the top plate, and the rear side and the bottom side are open, and the outer plates are attached to the outer surfaces of the inner plates to form the top plate. The upper plate (2) that closes the upper opening of the case body with the front plate and the front plate that closes the front opening of the case body, and the bottom plate so as to be connected between the inner plates of the case body. It has an upright beam member (8), a front panel (29) and a substrate (27), the front panel is provided on one end side of the substrate, and the front plate of the upper cover is perforated. A circuit unit (3) inserted into the case body through the insertion hole (21a) to close the insertion hole; and a circuit unit (3) inserted into the case body through a rear opening formed by the case body and the upper cover. A power supply unit (4) for supplying power to the circuit unit, Between the upper end of each inner plate portion and the top plate, between the upper end of the beam and the top plate, between the top plate and the front panel, between the bottom plate and the front panel, respectively. And a shield member (16) arranged so as to surround the circuit unit via a housing. 2. The beam member (8) includes a circuit side connector (9a) to which the circuit unit (3) is connected and a power source side connector (9b) to which the power source unit (4) is connected. The housing for electronic equipment according to claim 1, which has. 3. A ventilation hole for allowing the beam (8) to ventilate from the circuit unit (3) to the power supply unit via a cooling fan (36b) arranged in the power supply unit (4). The electronic device casing according to claim 1 or 2, further comprising a portion (8d). 4. The ventilation hole (8) of the beam (8).
d) and a slit hole (17) provided at the upper end of the beam member, and the shield member (16) is inserted and attached to the shield member (16). For electronic devices. 5. The ventilation hole (8) of the beam (8)
d) and a locking piece (22a) which is provided on the top plate (19) of the upper cover (2) and is inserted and locked in the ventilation hole.
The electronic device casing according to any one of claims 1 to 4, further comprising: