JP2000324624A - Skeleton structure of enclosure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce assembly operation time and to reduce weight and costs by equipping a frame that is composed by a steel plate for reinforcing an outer- surface body and a connection means utilizing a clamping tool and an adhesive for connecting the frames. SOLUTION: The skeleton structure of a large enclosure is provided with a floor surface reinforcing frame body 11 for reinforcing a floor surface plate in an outer surface body, a top surface reinforcing frame body 12 for reinforcing a top surface plate in the outer surface body, a frame body 13 for reinforcing a side plate in the outer surface body, and a post frame 14 being extended in a vertical direction. The frame bodies 11 to 13 and the post frame 14 are composed by the frame of a hot rolling steel plate. The frames are connected by a connection means where a rivet that is a clamping tool of the frames and an adhesive are used together, thus forming the skeleton structure of the enclosure and hence reducing weight and costs and reducing the assembly operation time of the skeleton structure of the enclosure.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a frame structure for housing a heavy object such as a high-voltage main circuit device therein.

[0002]

2. Description of the Related Art FIG. 20 is an oblique perspective view of a bone structure of a large housing for housing heavy objects such as high-voltage main circuit equipment. This bone structure has a floor reinforcing frame 1 for reinforcing the floor.
A top frame 2 for reinforcing a top panel, a side frame 3 for reinforcing a side panel, and a column frame provided between the top panel 2 and the floor frame 1. 4 is provided. Each frame body 1, 2, 3, 4
Are each formed of a U-shaped, 5 mm thick, groove-shaped carbon steel frame. And each frame is mutually joined by welding, and each frame body 1,
2, 3 and 4 are formed, and also constitute the bone structure of the large casing.

[0003]

In the bone structure of the large casing having the above-described structure, the bone structure is formed by welding, so that the frame of each of the frame bodies 1, 2, 3, and 4 is deformed by heat generated by welding. In order to correct the thermal deformation, it is necessary to perform a distortion removing operation (for example, a hitting operation), and there is a problem that much time is required for an assembling operation. Also, in the welding and joining of frames, since the outer peripheral portion of the frame is melted and the frames are joined through the location, the joining area is inevitably small, and in order to increase the joining strength, a thick carbon steel is required. It has to be used, and there is also a problem that the total weight is heavy and the manufacturing cost is increased.

SUMMARY OF THE INVENTION An object of the present invention is to solve such a problem, and it is possible to shorten the assembling work time, improve the assembling accuracy, and reduce the weight and cost. An object of the present invention is to obtain a bone structure of a housing that can be designed.

[0005]

According to a first aspect of the present invention, a bone structure of a housing is formed of a steel plate, and includes a plurality of frames for reinforcing an outer body, and a fastener for connecting these frames to each other. Coupling means using an adhesive together.

According to a second aspect of the present invention, the frame has a L-shaped cross section.

According to a third aspect of the present invention, the frame has a U-shaped cross section.

According to a fourth aspect of the present invention, the frame has a closed cross-sectional structure in which U-shaped cross-sectional frame portions are connected to each other by a connecting means using a fastener and an adhesive.

[0009] In the bone structure of the housing according to the fifth aspect, at least at one corner, the frames are connected to each other via a corner reinforcing portion extending in a perpendicular direction to each other and having three fold curves.

In the bone structure of the housing according to the sixth aspect, the corner reinforcing portion has a slit between bent surfaces formed by bending a flat steel plate from a bent curve.

In the bone structure of the housing according to the seventh aspect, the leading end of one frame is subjected to drawing, and this leading end is connected to the other frame in the same plane.

In the bone structure of the housing according to the eighth aspect, a hole is formed in the distal end portion for absorbing a wrinkle generated at the time of drawing the distal end portion.

In the bone structure of the housing according to the ninth aspect, a step portion is formed at the tip of one frame, and this tip is connected to the other frame in the same plane.

According to a tenth aspect of the present invention, a slit is formed in the step.

[0015] In the bone structure of the housing according to the eleventh aspect, the fastener is a rivet.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1 is a perspective view of a bone structure of a large casing according to Embodiment 1 of the present invention, and FIG.
FIG. 3 is an exploded perspective view of the bone structure of FIG. The bone structure of the large housing includes a floor reinforcing frame 11 for reinforcing a floor plate (not shown) as an outer body, and a top panel (not shown) as an outer body.
And a frame frame body 13 for reinforcing a side plate (not shown), which is an external body, and a plurality of column frames 14 extending in the vertical direction. Each of the frame bodies 11, 12, 13 and the column frame 14 is constituted by a frame of a hot-rolled steel sheet having a thickness of 2.3 mm. Then, the respective frames are joined together using a joining means using a rivet as a fastener and an adhesive together,
It forms the bone structure of the housing.

FIG. 3 shows the frame 15 at the point T-1 in FIG.
FIG. 2 is an exploded perspective view of the frame 1 having a closed cross-sectional structure.
5 is a first frame portion 16 and a second frame portion 1 obtained by bending a hot-rolled steel plate having a thickness of 2.3 mm into a U-shape.
7 is provided. Rivet holes 18 are formed at the ends of the frame portions 16 and 17 to allow rivets as fasteners to pass therethrough. An adhesive shown in a stitch shape is applied to one surface of the short piece portion 19 of the first frame portion 16.

The first frame portion 16 and the second frame portion 17 are joined by superimposing the two frame portions 16 and 17 in a state where an adhesive is applied to a predetermined portion of one surface of the short piece portion 19 in advance. Thereafter, a rivet (not shown) is inserted into each of the rivet holes 18 in FIG. 3 as indicated by a dashed line and plastically deformed. The rivet can be swaged only from one side of the member to be fastened, for example, a type of monobolt etc., a rivet body with a hollow head and a mandrel with an enlarged tip and a cut in the middle Are fitted to the rivet gun, the rivet body is inserted into the rivet hole, and the mandrel is pulled with a strong force and fastened. When the mandrel is pulled by the rivet gun, the tip of the rivet body is plastically deformed and expanded by the enlarged tip of the mandrel,
The member to be fastened is firmly fastened between the rivet head and the extension. Further pulling of the mandrel tears the mandrel at the notch and removes it from the rivet body.

FIG. 4 is an exploded perspective view of a portion (corner portion) T-5 of the bone structure of FIG. A frame 20, which is a main component of the frame body 13, includes a frame body 21 and a rising portion 22 which is bent at a right angle along the side from the frame body 21.
And an inward bent portion 23 that is bent inward in parallel along the frame body 21 except for both end portions. The frame 24, which is a component of the top surface reinforcing frame 12, has an L-shaped cross section, and includes a long piece 25 and a short piece 26. The corner reinforcing portion 27 has three fold curves extending in three directions perpendicular to each other, and has a surface on which an adhesive (shown in a mesh shape in FIG. 4) is applied. It comprises a portion 29, a second piece 30 and a third piece 31. Rivet holes 18 are formed in the corners of the frame 13, the ends of the top plate reinforcing frame 12, and the corner reinforcing portions 27 to allow rivets as fasteners to pass therethrough.

The connection between the frame 20 of the frame body 13 and the frame 24 of the top plate reinforcing frame body 12 is performed by applying the adhesive to the corner reinforcing portion 27 in advance.
0, the first piece 29 and the third piece 31 of the corner reinforcement 27 are overlapped, and the second piece 30 of the corner reinforcement 27 and the frame 24 are overlapped. Thereafter, a rivet (not shown) is inserted into each rivet hole 18 in FIG. 4 as shown by a dashed line, and plastic deformation is performed.

FIG. 5 is an exploded perspective view of T-6 at the center of the top surface reinforcing frame 12 of FIG. The top surface reinforcing frame 12 includes a first frame 40 extending perpendicular to the frame 13, second and third frames 41 and 42 extending parallel to the frame 13, And a connecting portion 43 for connecting the second frame 41 and the third frame 42. First, second and third frames 4
Each of 0, 41, and 42 has a U-shaped cross section. An intermediate portion of the first frame 40, second and third frames 41,
A rivet hole 18 for passing a rivet as a fastener is formed in an end portion of the connecting portion 42 and the connecting portion 43.

Second frame 41 and third frame 42
5, the second frame 41 and the third frame 42 are superimposed on both sides thereof in a state where the adhesive is applied to the connecting portion 43 in advance, and then the rivets (not shown) are placed in FIG. It is performed by inserting it into the rivet hole 18 as shown by a dashed line and plastically deforming it. Further, the first frame 40 and the column frame 14 of the top surface reinforcing frame body 12 are connected via a connecting portion 43 by using a connecting means using a rivet and an adhesive together. A bent surface 44 that is bent at a right angle is formed at the tip of the column frame 14 having a U-shaped cross section, and an adhesive is applied to the surface of the bent surface 44.

FIG. 6 shows the T of the floor reinforcing frame 11 of FIG.
FIG. 9 is an exploded perspective view of a portion -7. Floor reinforcement frame 1
Reference numeral 1 denotes a frame 51 having a closed cross section extending perpendicular to the frame body 13 and a frame 15 extending parallel to the frame body 13 (see FIG. 3, but omitting a second frame portion). Have. A bent surface 52 that is bent at a right angle is formed at the tip of the first frame portion 16.
The bent surface 52 and the frame 51 corresponding to the bent portion 40 are formed with rivet holes 18 through which rivets as fasteners are passed. Frame 15
The connection between the frame and the frame 51 is performed using a connecting means using a rivet and an adhesive together through the bent surface 52.

FIG. 7 is an exploded perspective view of a portion T-8 which is an intermediate portion of the frame 13 shown in FIG. Frame body 1
A cutout 61 is formed in the frame 20, which is a component of the third embodiment. A bent surface 62 at the lower end of the pillar frame 14 is connected to both sides of the notch 61 by a connecting means using a rivet and an adhesive. The bent surface 63 of the frame 51 and the frame 20 of the frame body 13 are also connected by a connecting means using a rivet and an adhesive together.

Embodiment 2 FIG. 8 is a perspective view of the bone structure of the large casing according to the second embodiment of the present invention, and FIG. 9 is an exploded perspective view of the bone structure of FIG. The bone structure of this large casing includes a top frame 71, a floor frame 72, and first and second frames.
, And a column frame 74 interposed between the top frame 71 and the floor frame 72. Each frame body 71, 72, 73 and pillar frame 7
Reference numeral 4 denotes a hot-rolled steel sheet having a thickness of 2.3 mm. Then, the frames are connected to each other using a connecting means using a rivet, which is a fastener, and an adhesive together to form a bone structure of the housing.

FIG. 10 is an exploded perspective view of a corner portion (location C-2 in FIG. 8) of the bone structure of the large casing in FIG. A notch 76 of a frame 75 which is a component of the top frame 71 is provided with a corner reinforcing portion 77. Corner of frame 75, end of pillar frame 74 and corner reinforcement 7
A rivet hole 18 for passing a rivet as a fastener is formed in each of the rivets 7. Corner reinforcement 77
Has three fold curves extending in three directions perpendicular to each other, and has a first fold surface 78 on the surface of which an adhesive is applied.
It comprises a second bent surface 79 and a third bent surface 80.

The corner reinforcing portion 77 is formed by bending a flat steel plate from a bending curve to form bending surfaces 78, 79, and 80. A slit 81 is formed in the third bent surface 80. In the conventional one, when forming a corner reinforcing part by bending a flat plate, a slit is formed, and a weld joint is required at that location, but in this embodiment, a rivet and an adhesive are used in combination. Since the connecting means is used, the corner portion can be sufficiently reinforced without performing such welding work.

The frame 75 and the column frame 74 of the top frame 71 are connected to each other with the adhesive (shown in a mesh pattern in FIG. 10) applied to the corner reinforcing portions 77 in advance. And the third bent surface 80 of the corner reinforcing portion 77 are overlapped, the first and second bent surfaces 78 and 79 are overlapped with the end of the column frame 74, and then rivets (not shown). 10) is inserted into each of the rivet holes 18 in FIG. 10 as indicated by a dashed line and plastically deformed.

FIG. 11 is an exploded perspective view of the portion C-9 of the top frame 71 of the large housing of FIG. The top frame 71 is a frame 75 and a frame 91 extending in a direction perpendicular to the frame 75 and having a closed cross section.
It has. The frame 75 is provided with a working hole 93 used for fastening a rivet. In the state where the adhesive shown by the mesh pattern in the figure is applied to the bent surface 94 of the frame 91 of the top frame body 71 and the bent surface 95 of the U-shaped frame 92 of the side frame body 73,
A rivet is inserted into the rivet hole 18 as indicated by a one-dot chain line, and the frames 91, 75, and 92 are connected to each other by plastic deformation. Note that the configuration at locations C-1 and C-7 in FIG. 8 is similar to the configuration shown in FIGS. 3 and 6, and a description thereof will be omitted.

Embodiment 3 FIG. 12 is a perspective view of the bone structure of the large casing according to the third embodiment of the present invention, and FIG. 13 is an exploded perspective view of the bone structure of FIG. The bone structure of this large housing
A floor reinforcing frame body 101 for reinforcing a floor board (not shown) as an outer body, a top reinforcing frame body 102 for reinforcing a top board (not shown) as an outer body, and a side plate ( (Not shown) and a plurality of column frames 104 extending in the vertical direction.
Each frame body 101, 102, 103 and pillar frame 1
No. 04 is constituted by a frame of a hot-rolled steel plate having a thickness of 2.3 mm. Then, the frames are connected to each other using a connecting means using a rivet, which is a fastener, and an adhesive together to form a bone structure of the housing.

FIG. 14 shows the floor reinforcing frame 10 of FIG.
FIG. 3 is an exploded perspective view of B-1 of FIG. A notch 104 is formed in a frame 108 having a U-shaped cross section, which is a component of the floor surface reinforcing frame body 101. On both sides of the notch 104, a pillar frame 10 having a U-shaped cross section is provided.
The bent surface 105 at the lower end of 4 is connected by a connecting means using a rivet and an adhesive together. Also, the bent surface 107 at the end of the frame 106, which is a component of the floor surface reinforcing frame body 101, and the frame 108 are connected by a connecting means using a rivet and an adhesive together. These joints, in the state where the adhesive is applied in advance to the place to be joined,
The column frame 104 and the frame 106 are joined to the frame 108, and then rivets (not shown) are attached to the frame 108 in FIG.
In this case, the rivet holes 18 are inserted into the rivet holes 18 as indicated by the alternate long and short dash lines, and are plastically deformed.

FIG. 15 shows the top surface reinforcing frame 10 of FIG.
FIG. 4 is an exploded perspective view of a portion B-4 of FIG. The top surface reinforcing frame body 102 includes a frame 109 extending in a direction perpendicular to the frame body 103 and a frame 110 extending in parallel to the frame body 103. And
The frame 109 and the bent surface 111 of the frame 110 are connected by a connecting means using a rivet and an adhesive together. The bent surfaces 111 of the frame 109 and the pillar frame 104 are also connected by a connecting means using a rivet and an adhesive together. Since the configuration at the locations B-1 and B-5 in FIG. 12 is similar to the configuration shown in FIG. 1 and FIG.
The description is omitted.

Embodiment 4 FIG. FIG. 16 is an exploded perspective view of a main part of a bone structure of a large-sized housing according to Embodiment 4 of the present invention. The floor reinforcing frame has a first frame 120 and a second frame 121 as main components. The first frame 120 includes a frame body 122 having a U-shaped cross section.
And a bent surface 123 which is bent inward at the end of the frame body 122. First frame 120
A narrowed portion 124 is formed at the front end portion by drawing. In addition, a hole 125 is formed in the front end to absorb wrinkles at the front end generated during drawing. Also,
The rivet hole 18 is formed in the bent surface 123 and the narrowed portion 104.

The second frame 121 is a frame body 1
26, a rising portion 127 bent inward at a right angle from an end of the frame main body 126, and an inward bent portion 128 bent from the end of the rising portion 127 in parallel with the frame main body 126. Have. Rising part 1
A rivet hole 18 is formed in the inwardly bent portion 27 and the inwardly bent portion 128.

First frame 120 and second frame 1
When the adhesive is applied to the bent surface 123 and the narrowed portion 124 in advance, the bent surface 123 is brought into contact with the rising portion 127, and the narrowed portion 124 is inwardly bent.
Then, a rivet (not shown) is inserted into each rivet hole 18 in FIG. 16 and plastically deformed. In this connection state, the first frame 120 and the second frame
Is the same plane as the frame 121, and the appearance is improved.

Embodiment 5 FIG. 17 is an exploded perspective view of an essential part of a bone structure of a large-sized housing according to Embodiment 5 of the present invention. In this embodiment, a narrowed portion 131, a rivet hole 18 and a hole 132 Is formed, and the squeezed portion 131 is connected to the second frame 133 by a connecting means using a rivet and an adhesive together.

Embodiment 6 FIG. FIG. 18 is an exploded perspective view of a main part of a bone structure of a large-sized housing according to Embodiment 6 of the present invention. In this embodiment, a step portion 141 and a rivet hole 18 are formed at a distal end portion of a first frame 140. This tip is connected to the second frame 142 by a connecting means using a rivet and an adhesive together. Note that, as shown in FIG. 19, a slit 151 may be formed in the step portion 141 of FIG.

In each of the above embodiments, a rivet is used as a fastener, but a fastener composed of, for example, a bolt and a nut may be used. In addition, it is needless to say that the housing can accommodate a heavy object other than a heavy object such as a high-voltage main circuit device.

[0039]

As described above, according to the bone structure of the housing according to the first aspect of the present invention, a plurality of frames which are made of a steel plate and reinforce the outer surface body, and these frames are connected to each other. Since the coupling means is provided with the fastener and the adhesive in combination, the adhesive is interposed on the coupling surface, and the coupling area can be increased. Since the strength of connection between the frames is increased, the thickness of the frames can be reduced, and the weight and cost can be reduced. In addition, the joining operation can proceed to the next step without waiting for the curing of the adhesive, and the assembling operation time for the bone structure of the housing can be reduced.

According to the bone structure of the housing according to the second aspect, the frame has a L-shaped cross section, so that the rigidity of the frame is increased even if the amount of steel plate used is small.

According to the third aspect of the present invention, since the frame has a U-shaped cross section, the rigidity of the frame is increased even if the amount of steel plate used is small.

According to the bone structure of the housing according to the fourth aspect, the frame has a closed cross-sectional structure in which the U-shaped frame portions are connected to each other by a connecting means using a fastener and an adhesive. The rigidity of the frame increases.

According to the bone structure of the housing according to the fifth aspect, at least at one corner, the frames are connected to each other via the corner reinforcing portions having three-fold fold curves extending in the vertical direction. The rigidity at the corner is increased.

According to the bone structure of the housing according to the sixth aspect, since the joint between the corner reinforcing portion and the frame uses the joint means using the fastener and the adhesive, the joint strength is increased. In addition, it is possible to easily form a corner reinforcing portion by bending a flat steel plate from a bending curve, and it is not necessary to weld and join the end surfaces of the bending surfaces.

According to the bone structure of the housing according to the seventh aspect, the front end of one frame is subjected to drawing, and this front end is connected to the other frame in the same plane without any step. Because it is used, it is not affected by steps when used, and is excellent in aesthetic appearance.

According to the bone structure of the housing according to the eighth aspect, since the hole is formed at the front end, it is possible to prevent wrinkles from occurring at the time of drawing at the front end.

According to the skeleton structure of the housing according to the ninth aspect, a step is formed at the tip of one frame, and this tip is connected to the other frame in the same plane without any step. Because it is used, it is not affected by steps when used and is excellent in aesthetics.

According to the bone structure of the housing according to the tenth aspect,
Since the slit is formed in the stepped portion, the tip of one frame can be connected to the other frame in the same plane by performing a simple bending process.

According to the bone structure of the housing according to the eleventh aspect,
Since the fastener is a rivet, the fastening operation is simple and the frames are securely connected to each other.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a bone structure of a large-sized housing according to Embodiment 1 of the present invention.

FIG. 2 is an exploded perspective view of the bone structure of FIG.

FIG. 3 is an exploded perspective view of a location T-1 in FIG. 1;

FIG. 4 is an exploded perspective view of a location T-5 in FIG.

FIG. 5 is an exploded perspective view of a portion T-6 in FIG.

FIG. 6 is an exploded perspective view of a portion T-7 in FIG. 1;

FIG. 7 is an exploded perspective view of a location T-8 in FIG. 1;

FIG. 8 is an overall perspective view of a bone structure of a large casing according to Embodiment 2 of the present invention.

FIG. 9 is an exploded perspective view of the bone structure of FIG.

FIG. 10 is an exploded perspective view of a portion C-2 in FIG. 8;

FIG. 11 is an exploded perspective view of a portion C-9 in FIG. 8;

FIG. 12 is an overall perspective view of a bone structure of a large casing according to Embodiment 3 of the present invention.

FIG. 13 is an exploded perspective view of the bone structure of FIG.

FIG. 14 is an exploded perspective view of a portion B-3 in FIG.

15 is an exploded perspective view of a portion B-4 in FIG.

FIG. 16 is an exploded perspective view of a main part of a bone structure of a large casing according to a fourth embodiment of the present invention.

FIG. 17 is an exploded perspective view of a main part of a bone structure of a large casing according to a fifth embodiment of the present invention.

FIG. 18 is an exploded perspective view of a main part of a bone structure of a large casing according to a sixth embodiment of the present invention.

FIG. 19 is an essential part exploded perspective view showing another example of the bone structure of the large casing according to the sixth embodiment of the present invention.

FIG. 20 is an overall perspective view of a conventional large-sized housing bone structure.

[Explanation of symbols]

14, 74, 104 pillar frame, 15, 20, 24,
40, 41, 42, 51, 60, 75, 91, 92, 1
06,108,109,110,120,121,13
0, 133140, 142 frame, 27, 77 corner reinforcement, 80 bent surface, 81 slit, 124,
131 throttle, 141 step, 151 slit.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yoshinobu Nakajima 2-6-1 Otemachi, Chiyoda-ku, Tokyo Inside Mitsubishi Electric Engineering Co., Ltd. (72) Inventor Tokuji Obata 2-6-Otemachi, Chiyoda-ku, Tokyo 2 Mitsubishi Electric Engineering Co., Ltd. (72) Inventor Kosuke Haraga 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Mitsubishi Electric Co., Ltd. (72) Inventor Satoshi Midorikawa 4-4 Maruo-cho, Nagasaki City, Nagasaki Prefecture Nagasaki Ryoden Technica Co., Ltd. (72) Inventor Naoki Tani 2-3-2 Marunouchi, Chiyoda-ku, Tokyo F-term of Mitsubishi Electric Co., Ltd. (reference) 5G016 AA01 BA02 CA03

Claims (11)

[Claims] 1. A bone structure of a housing comprising a plurality of frames made of a steel plate and reinforcing an outer surface body, and connecting means for connecting the frames to each other using a fastener and an adhesive. 2. The housing bone structure according to claim 1, wherein the frame has a L-shaped cross section. 3. The bone structure of a casing according to claim 1, wherein the frame has a U-shaped cross section. 4. The frame structure according to claim 1, wherein the frame has a closed cross-section in which U-shaped cross-sections are connected to each other by connecting means using a fastener and an adhesive. 5. The housing according to claim 1, wherein at least at one corner, the frames are connected to each other via a corner reinforcing portion having three fold curves extending in a direction perpendicular to each other. Bone structure. 6. The bone structure of a casing according to claim 5, wherein the corner reinforcing portion has a slit between bending surfaces formed by bending a flat steel plate from a bending curve. 7. The method according to claim 1, wherein a drawing process is performed on a tip portion of one of the frames, and the tip portion is connected to the other frame in the same plane. Bone structure of the housing. 8. The bone structure of a housing according to claim 7, wherein a hole for absorbing wrinkles generated at the time of drawing of the front end portion is formed in the front end portion. 9. The frame according to claim 1, wherein a step portion is formed at a tip portion of one of the frames, and the tip portion is connected to the other frame in the same plane. Bone structure of the housing. 10. The bone structure of the housing according to claim 9, wherein a slit is formed in the step portion. 11. The bone structure of a housing according to claim 1, wherein the fastener is a rivet.