JP7213918B2 - Enclosure for electronic equipment - Google Patents

Description

The present invention relates to an electronic device housing having a handle provided on a cover that covers a frame on which electronic components are mounted. The present invention relates to an electronic device housing in which a cover can be easily removed from a frame without removing the cover.

FIG. 8 is a schematic diagram for explaining the assembly process of a conventional electronic device and the structure of an electronic device housing. Assembling is described as being performed manually by workers on a workbench.

In step 1), various sheet metals 100 are used to assemble a chassis 101 on which electronic components 104 are mounted/mounted.

In step 2), the front panel 102 is attached to the front of the chassis 101 and the rear panel 103 is attached to the rear of the chassis 101 .

In step 3), printed circuit boards, modules, power supplies, and other various components (collectively referred to as electronic components 104) are incorporated into the chassis 101. As shown in FIG.

In step 4), the direction of the electronic device being assembled is changed. As shown in the figure, the front panel 102 is in a vertically long position in contact with the workbench.

In step 5), a rectangular tubular cover (winding drum) 105 having an open front side and a back side is inserted from the rear panel 103 side of the electronic device so as to externally insert the chassis 101 and the like.

In step 6), foot supports 106 are attached to the four corners of the top surface of the cover 105, and bottom feet 107 are attached to the four corners of the bottom surface of the cover 105 as well. Also, legs 108 are provided at the four corners of the rear panel.

In step 7), the electronic device is turned again. As shown in the figure, the bottom foot 107 attached to the cover 105 is brought into contact with the work table, and the front panel 102 is returned to the initial posture (step 2) facing forward.

In step 8), the back panel 103 is attached with a product label including the model name, serial number, etc., and the front panel 102 is attached with the decorative sheet 109 .

FIG. 9 is a perspective view of an electronic device housing that can be manufactured by the steps described with reference to FIG. In the description of the manufacturing process with reference to the schematic diagram of FIG. 8, the side surface of the cover was not provided with a handle for lifting the entire cover. However, actually, as shown in FIG. 9, handles 20 are attached to both side surfaces of the cover of the housing for electronic equipment, and in FIG. It shows the removed state.

As can be seen from FIG. 10 showing a part of the horizontal cross section taken along the line AA in FIG. 9 and FIG. Body handles 20 are arranged outside the sides of cover 105 . Mounting holes 20 a are provided at both ends of the handle 20 . A set screw 21 is inserted into this mounting hole 20a from the outside, and is further inserted through a through hole 105a provided in the cover 105, and the set screw 21 is inserted into the internal thread portion 101a provided in the chassis 101 housed inside the cover 105. screwed. That is, the handle 20 overlaps the cover 105 and is fixed to the chassis 101 together with the cover 105 .

Patent Literature 1 listed below discloses an invention of an electronic device handle that can be used in such an electronic device housing.

Japanese Utility Model Laid-Open No. 5-31278

The manufacturing process of the conventional electronic device or the structure of the housing for the electronic device described above has the following problems. That is, in step 5), the cover (winding drum) 105, which is the main body of the housing for electronic equipment, was attached by inserting it from the rear panel 103 side. It was necessary to change the posture of the electronic device so that the An electronic device weighs several tens of kilograms, for example, and requires a certain amount of force to change its posture. It was limited to workers who could operate the machine for change. In addition, when changing the attitude, a supporting component for supporting the electronic equipment is required so that the front panel 102 does not come into direct contact with the workbench (or the ground). Furthermore, as is clear from FIG. 1, in step 5) of assembling the cover 105, a work space with a height twice as large as the length of the electronic device in the depth direction was required.

In addition, the structure of the conventional electronic device or housing for electronic device described with reference to FIGS. 8 to 11 has the following problems. That is, since a set screw 21 for fixing the handle 20 provided on the outer surface of the cover 105 passes through the cover 105 and is screwed into the chassis 101 inside the cover 105, the handle 20 is fixed to the cover 105. The problem is that the cover 105 cannot be removed from the chassis 101 unless the cover 105 is removed from the chassis 101 . For example, if an electronic device breaks down and it is desired to access the electronic components 104 attached to the chassis 101 inside the housing, the cover 105 cannot be removed from the chassis 101 immediately. In addition, it is necessary to remove the cover 105 from the chassis 101 after changing the posture of the electronic device.

SUMMARY OF THE INVENTION The present invention has been made in view of the problems described above, and an electronic device housing having a structure in which a frame on which electronic components are mounted is covered with a cover can be easily assembled without changing the posture of the frame. Another object of the present invention is to provide an electronic equipment housing in which the cover can be easily removed from the frame without removing the handle from the cover.

The electronic device housing 2 according to claim 1 is
a bottom plate 3;
a frame 4 attached to the bottom plate 3 and on which an electronic component 7 is mounted;
a front panel 5 attached to the front of the frame 4;
a back panel 6 attached to the back of the frame 4;
a cover 8 covering both side surfaces and an upper surface of the frame 4;
a handle 20 provided on the outer surface of both side plates 8a of the cover 8;
projections 32 and 33 provided on the inner surface of both side plates 8a of the cover 8 and one of the frames 4;
an engaging portion 40 provided on the inner surface of both side plates 8a of the cover 8 and the other of the frame 4;
and
When the handle 20 is held and the cover 8 is lifted, the load of the frames 3 and 4 is applied to the protrusions 32 and 33 and the engagement portion 40 via the protrusions 32 and 33 and the engagement portion 40 . It is characterized in that it is engaged with the cover 8 so as to be applied to it.

The electronic device housing 2 according to claim 2 is the electronic device housing 2 according to claim 1,
The protrusions 32 and 33 are provided on the inner surfaces of both side plates 8a of the cover 8,
The engaging portion 40 is provided on the outer surface of the frames 3 and 4 at a position corresponding to the protrusions 32 and 33,
The protrusions 32 and 33 and the engaging portion 40 are configured so that when the electronic device housing 2 is lifted by holding the handle 20 , the load of the frames 3 and 4 is transferred to the engaging portion 40 via the engaging portion 40 . It is characterized in that it engages so as to join the protrusions 32 and 33 .

The electronic device housing 2 according to claim 3 is the electronic device housing 2 according to claim 2,
The engaging portion 40 has a horizontal groove portion 41 parallel to the mounting direction X perpendicular to the front panel 5 or the rear panel 6, and a vertical groove portion 42 continuous with the horizontal groove portion 41 and open at the upper end. It is characterized by having

The electronic device housing 2 according to claim 4 is the electronic device housing 2 according to claim 3,
The projecting portion 32 is provided with a locking member 31 having a head portion 35 with an outer diameter larger than the groove widths of the vertical groove portion 42 and the lateral groove portion 41 .

According to the electronic device housing described in claim 1, the bottom plate is placed on the workbench, the frame is placed on the bottom plate, the front panel is attached to the front of the frame, and the rear The back panel is attached to the frame, the electronic components are mounted on the frame, and a cover is placed on both sides and the top surface of the frame to engage the projections and the engaging portions, thereby eliminating the trouble of changing the posture. Can be assembled. Due to the engaging structure of the cover and the frame, when the housing is lifted by holding the handle, the load of the frame is applied to the cover via the projection and the engaging portion, and the frame connects the projection and the engaging portion. It will be in a state of being suspended from the cover via the Also, since the handle of the cover is not structurally connected to the frame, when it is desired to remove the cover, the handle of the cover remains attached to the cover and the engagement between the protrusion and the engaging portion is released. to remove the cover from the frame immediately.

According to the electronic device housing described in claim 2, in the effect of the electronic device housing described in claim 1, in particular, when the electronic device housing is lifted by holding the handle, the frame is applied to the protrusion of the cover via the engaging portion.

According to the electronic device housing described in claim 3, in addition to the effect of the electronic device housing described in claim 2, since the cover is attached to the frame, the cover is vertically directed toward the frame from above. When lowering the frame, the engagement between the longitudinal groove and the projection of the frame serves as a guide, facilitating assembly. After inserting the protrusion of the cover into the longitudinal groove of the frame, the cover is moved in the mounting direction, so that the protrusion is moved along the lateral groove and positioned by contacting the deep end of the lateral groove. , the cover and the frame can be positioned in a regular state, and the assembly accuracy of the housing is improved.

According to the electronic device housing described in claim 4, in addition to the effect of the electronic device housing described in claim 3, after the cover is attached to the frame, the electronic device housing is held by holding the handle. When the cover is lifted, the weight of the frame exerts force on both sides of the cover in the direction of opening it outward, but this force is received by the locking member, so that the cover can be prevented from opening outward. .

It is a mimetic diagram explaining an assembly process of electronic equipment of an embodiment. 1 is an external perspective view of an electronic device housing according to an embodiment; FIG. FIG. 3 is a diagram showing a part of a horizontal cross section taken along the line AA of FIG. 2; 4 is an enlarged view of a part (a) in FIG. 3. FIG. It is a perspective view which shows the inside of the side plate of the cover of the housing|casing for electronic devices of embodiment. 4 is an enlarged view of a part (b) in FIG. 3; FIG. FIG. 4A is a diagram showing the frame of the housing for electronic equipment according to the embodiment, in which part view (a) is a part of the plan view, part view (b) is a side view, and part view (c) is part of the part view (a). Partial enlarged view, Partial view (d) is partly enlarged view of Partial view (b). It is a schematic diagram explaining the assembly process of the conventional electronic device. FIG. 9 is a perspective view of an electronic device housing that can be manufactured by the steps illustrated in FIG. 8 ; FIG. 10 is a diagram showing a part of a horizontal cross section taken along line AA of FIG. 9; 11 is an enlarged view of a part (C) in FIG. 10. FIG.

An electronic device 1 (hereinafter simply referred to as device 1) and an electronic device housing 2 (hereinafter also simply referred to as housing 2) according to an embodiment of the present invention will be described with reference to FIGS. 1 to 7. . In the following description, the electronic device housing 2 refers to, for example, a box-shaped outer body that is assembled using various sheet metals and houses a chassis 4 on which electrical/electronic components are mounted/mounted. It is a concept, and the electronic device 1 is a concept indicating a final product assembled by housing the chassis 4 in the electronic device housing 2 .

FIG. 1 is a schematic diagram for explaining an assembly process of an electronic device 1 according to an embodiment and an overview of the structure of an electronic device housing 2. FIG. Assembling is described as being performed manually by workers on a workbench.

In step 1), the bottom plate 3 is placed on a workbench. Bottom feet 3 a are attached to the four corners of the bottom surface of the bottom plate 3 .

In step 2), the chassis 4 assembled from sheet metal is placed on the upper surface of the bottom plate 3 .

In step 3), the front panel 5 is attached to the front of the chassis 4 and the rear panel 6 is attached to the rear of the chassis 4 .

In step 4), the chassis 4 is attached or assembled with printed circuit boards, modules, power supplies and other electronic components 7 .

In step 5), the chassis 4 is covered from above with a cover 8 having a substantially U-shaped cross section covering both side surfaces and the upper surface of the chassis 4, and the cover 8 is moved along the mounting direction X perpendicular to the front panel 5 or the rear panel 6. By doing so, the cover 8 is attached and fixed to the chassis 4 as a frame. A structure for fixing the cover 8 and the chassis 4 (protrusions and engaging portions, which will be described later) will be described in detail after the description of the process.

In step 6), the legs 9 are attached to the four corners of the back panel 6 .

In step 7), the rear panel 6 is attached with a product label (not shown) indicating the model name, serial number, and the like.

In step 8), the decorative sheet 10 is attached to the front panel 5 to complete the electronic device 1 and the electronic device housing 2 .

As described above, the housing 2 of the embodiment has the bottom plate 3 placed on the workbench, the chassis 4 placed on the bottom plate 3, and the front panel 5 attached to the front of the chassis 4. Also, the rear panel 6 is attached to the rear surface, the electronic parts 7 are mounted on the chassis 4, and the chassis 4 is covered with a cover 8 so as to cover the both side surfaces and the upper surface of the chassis 4, and can be assembled in this order. That is, there is no need to change the posture of the housing 2 during the process of assembling the device 1 and the housing 2, and the assembly can be performed even by a strong worker or a worker who is not capable of operating a machine for changing the posture. be able to. In addition, unlike the prior art in which a work space twice as high as the length of the device 1 in the depth direction was required to place the device 1 in a horizontal position vertically, the work space for assembling the electronic device 1 is greatly different. 1 or the electronic equipment housing 2, it is sufficient if the height can be ensured.

FIG. 2 is a perspective view of the electronic equipment housing 2 manufactured by the process shown in FIG. However, in the schematic diagram of FIG. 1, a handle for lifting the entire cover 8 is not shown on the side surface of the cover 8. As shown in FIG. However, actually, as shown in FIG. 2, a handle 20 parallel to the longitudinal direction of the cover 8 is fixed above the outer surface of the side surface of the cover 8 of the electronic device housing 2 with a set screw 21. . 2 shows the handle 20 and set screw 21 removed from the cover 8. FIG. Although not shown in FIG. 2, the handle 20 is also provided on the opposite side surface of the cover 8. As shown in FIG.

2, a part of the chassis 4, the electronic components 7, and the like, which are schematically shown in FIG. 1, are omitted. Further, only the frame 6a of the rear panel 6 is shown, and the panel members are omitted.

FIG. 3 shows a part of a horizontal cross section taken along line AA in FIG. 2, and FIG. 4 shows a part (a) in FIG. 3 in an enlarged manner. As shown in these figures, the handle 20 is arranged in contact with the outer surface of the side plate 8a of the cover 4. As shown in FIG. The handle 20 is provided with a mounting hole 20a penetrating therethrough. 4 and 5, an elongated rectangular reinforcing plate 15 is arranged on the inner surface of the side plate 8a of the cover 8, and the cover 8 and the reinforcing plate 15 are provided so as to pass through both. It is integrated by five rivets 16 as fastening means. In addition, in FIG. 5, one rivet 16 at the innermost part is not shown for the sake of illustration. ) The rivet 16 is only an example, and the cover 8 and the reinforcing plate 15 may be fastened by other means.

As shown in FIG. 4, in order to fix the handle 20 to the cover 8, the set screw 21 is inserted into the attachment hole of the handle 20 from the outside and then passed through the through holes of the side plate 8a of the cover 8 and the reinforcing plate 15. , are screwed into a nut member 33 fixed to the inner surface of the reinforcing plate 15 to be integrated. As described above, as understood from FIG. 5 showing the inside of the side plate 8a of the cover 8, the reinforcing plate 15 inside the cover 8 is fixed to the cover 8 by the rivets 16 and forms a part of the cover 8. On the other hand, the handle 20 is directly fixed from the outside of the cover 8 by a set screw 21 and a nut member 33 . That is, as shown in FIG. 4 , the set screw 21 of the handle 20 does not touch the chassis 4 inside the cover 8 , and the handle 20 has no fixing/connecting relationship with the chassis 4 .

As shown in FIG. 6, which is an enlarged view of a part (b) of FIGS. As a structure on the side of the cover 8, six protrusions are provided along the longitudinal direction. The six projections are provided at substantially equal intervals in the longitudinal direction between the two nut members 33 provided at both ends of the reinforcing plate 15 in the longitudinal direction, and between the two nut members 33, 33. It includes four cylindrical internal threaded members 32 provided. In FIG. 5, one internal thread member 32 on the frontmost side is not shown because it is hidden by a locking member 31, which will be described later. FIG. 6 is an enlarged cross-sectional view of one of the two female threaded members 32 provided near both ends in the longitudinal direction of the reinforcing plate 15 among the four female threaded members 32 shown in FIG. It is a diagram.

As shown in FIG. 6, the internal thread member 32 has a shaft portion 34 formed with an external thread, and a disk-shaped head that is integrally fixed to the distal end of the shaft portion 34 and has a larger diameter than the internal thread member 32. A locking member 31 having a portion 35 is attached by screwing the shank 34 onto the internal thread.

FIG. 7 is a diagram showing the chassis 4 of the electronic device housing 2 of the embodiment. As shown in FIGS. 7(a) and 7(b), on the upper edge of the side surface of the chassis 4, there are four mounting holes provided on the side of the chassis 4 as a structure on the side of the chassis 4 for attaching the cover 8 to the chassis 4. A total of six engaging portions 40 are provided at six positions corresponding to the female screw member 32 and two nut members 33 . As shown enlarged in FIGS. 7(c) and (d), the engaging portion 40 is a groove formed in the sheet metal forming the frame, parallel to the mounting direction (X) perpendicular to the front panel or the rear panel. and a vertical groove portion 42 continuous with the horizontal groove portion 41 and open at the upper end. The groove width of the lateral groove portion 41 is set so that the internal thread member 32 and the nut member 33 can be inserted, and the groove width of the longitudinal groove portion 42 is set so that the corresponding internal thread member 32 and the nut member 33 can be moved in the vertical direction. It is set to the extent that it can be easily inserted with Also, the outer diameter of the head portion 35 of the locking member 31 is larger than the groove widths of the vertical groove portion 42 and the horizontal groove portion 41 . Therefore, if the female screw member 32 is inserted into the lateral groove portion 41 in a normal state, a force is applied to move the cover 8 in a direction to open it outward (a direction in which the cover 8 moves downward in FIG. 6). Even if it is received, the head 35 engages with the inner surface side of the chassis 4 to prevent it from coming off. Therefore, when the electronic device housing 2 is lifted by holding the handle 20 after the cover 8 is attached to the chassis 4 , the weight of the electronic device housing 2 may cause the side plates 8 a of the cover 8 to move outward. Although a force is applied in the direction of opening the cover 8, this force is received by the head portion 35 of the locking member 31, so that the cover 8 can be prevented from opening outward.

Next, referring to FIGS. 5 to 7, the operation briefly described above in step 5) of FIG. 1, that is, the operation of covering the chassis 4 with the cover 8 and then shifting them in the mounting direction X to fix them together. A more detailed description is given with reference to.

The cover 8 shown in FIG. 5 is slightly shifted to the rear side in the mounting direction X (to the right of the chassis 4 in FIGS. 7A and 7B) from the normal mounting position with respect to the chassis 4 shown in FIG. position and cover it from above. As a result, the internal thread member 32 and the nut member 33 on the inner surface of the side plate 8a of the cover 8 are inserted into the longitudinal grooves 42 of the engaging portions 40 on the upper edges of the side surfaces of the chassis 4. As shown in FIG. Since the internal thread member 32 and the nut member 33 have relatively small diameters compared to the groove width of the vertical groove portion 42, they can be easily inserted.

When the cover 8 is moved with respect to the chassis 4 in the mounting direction X, the female screw member 32 and the nut member 33 on the side plate 8a of the cover 8 move along the lateral grooves 41 of the engaging portions 40 on the side surface of the chassis 4. to move. Since the external diameters of the internal thread member 32 and the nut member 33 are set to such an extent that they can be inserted into the lateral groove portion 41, their movement is easy and stable. Further, since the head portion 35 having a large outer diameter does not slip out of the lateral groove portion 41 having a small groove width, the cover 8 does not come off the chassis 4 during the mounting work of the cover 8, and the assembly work of the housing 2 is simplified. stable. The position where the shaft portion 34 abuts against the depth of the lateral groove portion 41 and stops is the normal attachment position between the cover 8 and the chassis 4 .

According to such an engagement structure between the protrusion (female screw member 32 and nut member 33) and the engagement portion 40, the cover 8 and the chassis 4 can be easily positioned in the normal state, and the assembly accuracy of the housing 2 can be improved. high. Further, the fixing strength between the cover 8 and the chassis 4 is of a level that poses no problems as long as the electronic device 1 is normally used, and the cover 8 will not easily come off the chassis 4 . However, when it is necessary to access the inside of the housing 2, if the cover 8 is moved in the mounting direction X in the opposite direction to the mounting direction, the female thread member 32 and the nut member 33 are engaged with the engaging portion 40. is easy to remove. It should be noted that the regular positional relationship and fixed state between the female screw member 32 and the nut member 33 and the groove-shaped engaging portion 40 may be reinforced by another fixing structure provided as a supplement just in case. good.

Further, the cover 8 and the chassis 4 are integrally connected by engaging the internal screw member 32 and the nut member 33 provided on the cover 8 with the engaging portion 40 provided on the chassis 4. there is Therefore, when the housing 2 (or the electronic device 1) is lifted by holding the handle 20 on the side plate 8a of the cover 8, the load of the chassis 4, which accounts for most of the weight of the electronic device 1, is applied to the internal screw member 32 and the nut member. It joins the cover 8 via 33 and the engaging portion 40 . That is, the load of the chassis 4 is applied to the female screw member 32 and the nut member 33 of the cover 8 via the engaging portion 40, and the chassis 4 is suspended from the cover 8 by the engaging portion 40, the female screw member 32 and the nut member 33. It will be in the form of Therefore, when the electronic device housing 2 is lifted by holding the handle 20 in this state, the weight of the electronic device housing 2 applies force to the side plates 8a of the cover 8 in the direction of opening outward. However, since this force is received by the head portion 35 of the locking member 31, the cover 8 is not deformed and opened outward.

Furthermore, since the handle 20 of the cover 8 is not structurally connected to the chassis 4, the handle 20 can be attached to the cover 8 when the cover 8 is to be removed for inspection of the internal electronic components 7 or the like. In this state, the cover 8 can be immediately removed from the chassis 4 by releasing the engagement between the protrusions 31 to 33 and the engaging portion 40 .

In the embodiment described above, the cover 8 is provided with the female screw member 32 and the nut member 33 as projections, and the chassis 4 is provided with the engaging portion 40 . may be provided, and the chassis 4 may be provided with a protrusion. However, when the engaging portion is provided in the cover 8, the engaging portion having a concave or groove structure in which the protrusion can be engaged is provided in the cover 8 instead of forming a hole or groove penetrating the cover 8. A structure in which it is fixed to the inner surface of the side plate 8a is preferable. In this way, the inside of the housing 2 of the electronic device 1 can be reliably shielded by the cover 8 .

1 … Electronic device (equipment)
2 ... Electronic device housing (housing)
3 Bottom plate 4 Chassis as frame 5 Front panel 6 Rear panel 7 Electronic device 8 Cover 8a Side plate of cover 15 Reinforcement plate 16 Rivet 15 Reinforcement plate 20 Handle 20a Mounting hole 21 Set screw 31 Locking member 32 Internal thread member as projection 33 Nut member as projection 34 Shaft 35 Head 40 Engaging portion 41 Lateral groove 42 Vertical groove X Mounting direction

Claims (4)

a bottom plate (3);
a frame (4) attached to the bottom plate and on which electronic components (7) are mounted;
a front panel (5) attached to the front of said frame;
a back panel (6) attached to the back of said frame;
a cover (8) covering both side surfaces and an upper surface of the frame;
a handle (20) provided on the outer surface of both side plates (8a) of the cover;
projections (32, 33) provided on the inner surface of both side plates of the cover and one of the frame;
an engaging portion (40) provided on the inner surface of both side plates of the cover and the other of the frame;
and
The projecting portion and the engaging portion are engaged so that the load of the frame is applied to the cover via the projecting portion and the engaging portion when the cover is lifted by a handle. An electronic device housing (2) characterized by: The projections (32, 33) are provided on the inner surfaces of both side plates (8a) of the cover (8),
The engaging portion (40) is provided on the outer surface of the frame (3, 4) at a position corresponding to the projection,
When the housing for electronic equipment (2) is lifted by holding the handle (20), the load of the frame is applied to the protrusion through the engagement portion. A housing (2) according to claim 1, characterized in that the housing (2) for electronic equipment is engaged in such a way that The engaging portion (40) includes a lateral groove portion (41) parallel to the mounting direction (X) perpendicular to the front panel (5) or the rear panel (6), and a lateral groove portion (41) continuous with the lateral groove portion and 3. A housing (2) for electronic equipment according to claim 2, characterized in that it has an open longitudinal groove (42). The protrusion (32) is provided with a locking member (31) having a head (35) with an outer diameter larger than the groove widths of the longitudinal groove (42) and the lateral groove (41). The housing (2) for electronic equipment according to claim 3, characterized in that:

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