JP7350760B2 - power supply - Google Patents

Description

The present invention relates to a power supply device and a support fitting.

The power supply device described in Patent Document 1 includes a main body case, a pressing member, and a packing. The main body case has an opening edge forming an opening, and houses the power supply main body. The holding member is attached to the main case so as to cover the opening of the main case. The packing is arranged between the opening edge of the main body case and the pressing member.

JP2015-15422A

In the power supply device described in Patent Document 1, it is assumed that the holding member is manufactured by bending a sheet metal. The holding member is an L-shaped support fitting and includes a first plate, a second plate, and a bent corner. The first plate extends along a direction intersecting the opening of the main body case. The second plate extends along a direction intersecting the first plate. The bent corner connects the first plate and the second plate. When the height of the second plate is reduced, a gap is created between the bent corner and the packing, so that the pressing member cannot press the packing against a part of the opening edge. As a result, the reliability of sealing the power supply device is impaired.

Therefore, in consideration of the above circumstances, the present invention aims to provide a power supply device that can increase the reliability of sealing with a simple structure, and a support fitting suitable for sealing an electric device such as a power supply device. purpose.

The power supply device of the present invention includes a main body case, a holding member, and a packing. The main body case has an opening edge forming an opening, and houses the power supply main body. The pressing member is attached to the main body case so as to cover the opening. The packing is arranged between the opening edge and the pressing member. The holding member has a first plate, a second plate, and at least one bent corner. The first plate extends in a direction intersecting the opening. The second plate extends in a direction intersecting the first plate. The at least one bent corner connects the first plate and the second plate. A space exists at the boundary between the first plate and the second plate.

The support fitting of the present invention includes a first plate, a second plate, and at least one bent corner. The first plate extends in a first direction. The second plate extends in a second direction that intersects with the first direction. The at least one bent corner connects the first plate and the second plate. A space exists at the boundary between the first plate and the second plate.

According to the power supply device of the present invention, reliability of sealing can be improved with a simple structure. Further, according to the present invention, a support fitting suitable for sealing an electric device such as a power supply device can be provided.

FIG. 1 is a perspective view showing an example of a power supply device according to a first embodiment of the present invention. FIG. 3 is an exploded perspective view of the power supply device. It is a perspective view which expands and shows a part of a power supply device. FIG. 2 is an enlarged plan view of a part of the power supply device. 5 is an enlarged perspective view of the VV cross section in FIG. 4. FIG. 5 is a sectional view taken along line VI-VI in FIG. 4. FIG. It is a perspective view of the 1st presser member seen from a certain direction. It is a perspective view of the 1st presser member seen from another direction. FIG. 3 is a plan view of a power supply device according to a second embodiment of the present invention.

[First embodiment]
A first embodiment of the present invention will be described with reference to FIGS. 1 to 8. In addition, in the drawings, the same reference numerals are given to the same or corresponding parts, and the description will not be repeated.

First, the overall configuration of a power supply device 100 according to a first embodiment will be described with reference to FIGS. 1 and 2. FIG. 1 is a perspective view of a power supply device 100. FIG. 2 is an exploded perspective view of the power supply device 100. The power supply device 100 is, for example, a device for lighting equipment.

As shown in FIG. 1, the power supply device 100 includes a main body case 10, a first packing 20, and a first pressing member 30. As shown in FIG. 2, the main body case 10 has a first opening edge 16 that forms a first opening 15, and accommodates a power supply main body (not shown).

The first opening edge 16 has a first screw hole 1a and a second screw hole 1b. The first holding member 30 is attached to the main body case 10 with a first screw 40 and a second screw 41 so as to cover the first opening 15 . Therefore, the first holding member 30 is provided with a first through hole 3a through which the first screw 40 is passed, and a second through hole 3b through which the second screw 41 is passed.

The first packing 20 is arranged between the first opening edge 16 and the first pressing member 30. A first screw 40 passing through the first through hole 3a is screwed into the first screw hole 1a, and a second screw 41 passing through the second through hole 3b is screwed into the second screw hole 1b. As a result, the first pressing member 30 and the first packing 20 are fixed to the first opening edge 16, and the first packing 20 is compressed.

As shown in FIG. 1, the power supply device 100 further includes a second packing 50, a second pressing member 60, and a plurality of lead wires 70. As shown in FIG. 2, the main body case 10 has a second opening edge 17 forming the other opening on the opposite side to the first opening edge 16. As shown in FIG.

The second pressing member 60 is attached to the main body case 10 by a third screw 80 and a fourth screw 81 so as to cover the opening of the second opening edge 17. Therefore, two through holes through which the third screw 80 and the fourth screw 81 are passed are provided in the second holding member 60. The second packing 50 is disposed between the second opening edge 17 and the second pressing member 60, and is compressed by attaching the second pressing member 60. The plurality of lead wires 70 are introduced into the main body case 10 through a through hole provided in the second holding member 60 and a through hole provided in the second packing 50, and are connected to a power source main body (not shown). .

Next, the first holding member 30 will be explained with reference to FIGS. 3 to 8. FIG. 3 is an enlarged perspective view of a part of the power supply device 100. FIG. 4 is an enlarged plan view of a part of the power supply device 100. FIG. 5 is an enlarged perspective view of the VV cross section in FIG. 4. FIG. 6 is a sectional view taken along line VI-VI in FIG. FIG. 7 is a perspective view of the first pressing member 30 viewed from a certain direction. FIG. 8 is a perspective view of the first pressing member 30 seen from another direction.

As shown in FIG. 3, the first holding member 30 is an L-shaped support fitting manufactured by bending a sheet metal, and includes a first plate 31, a second plate 32, and a first bent corner portion 33a. , and a second bent corner portion 33b. The first plate 31 extends in a direction intersecting the first opening 15 . The second plate 32 extends in a direction intersecting the first plate 31. The first bent corner 33a and the second bent corner 33b are located at both ends of the first plate 31 in the width direction of the main body case 10, and connect the first plate 31 and the second plate 32, respectively. The width direction of the main case 10 is a direction intersecting the longitudinal direction of the main case 10. A space 34 exists at the boundary between the first plate 31 and the second plate 32 and between the first bent corner 33a and the second bent corner 33b. The second plate 32 presses the first packing 20 against the first opening edge 16 of the main case 10 .

The first plate 31 has a through hole 3c for attaching the power supply device 100. That is, one main surface 35 of the two mutually parallel main surfaces of the first plate 31 faces the surface to which the power supply device 100 is attached.

As shown in FIG. 4, the widthwise dimension W2 of the first holding member 30 is approximately the same as the widthwise dimension W1 of the first opening edge 16 of the main body case 10. As shown in FIG.

As shown in FIG. 5, the cross section of the first opening edge 16 is formed into an octagonal shape with inclined portions provided at each of the four corners of the rectangle. That is, the first opening edge 16 has a first lower slope part 11a and a second lower slope part 11b at both ends in the width direction, and a first upper slope part 12a and a second upper slope part 12a at both ends in the width direction. It has an upper slope part 12b. By making the cross-sectional shape of the first opening edge 16 octagonal, it is possible to reduce the size of the power supply device 100 and improve the strength of the main body case 10.

In the longitudinal direction of the main body case 10, the first bent corner 33a faces the first lower inclined part 11a, and the second bent corner 33b faces the second lower inclined part 11b. As a result, the first packing 20 is reliably pressed by the second plate 32.

As shown in FIG. 6, the first plate 31 has a main surface 35. As shown in FIG. The second plate 32 has an end surface 39. The first packing 20 has an end surface 21. The first opening edge 16 has a surface 13 . The main surface 35 of the first plate 31 , the end surface 39 of the second plate 32 , and the end surface 21 of the first packing 20 are flush with the surface 13 of the first opening edge 16 . As a result, the main body case 10 is not lifted by the first pressing member 30.

The first packing 20 has a protrusion 22 . The protruding portion 22 is formed at the peripheral edge of one of the two parallel principal surfaces of the first packing 20 on the main body case 10 side. The protrusion 22 is fitted into the first opening edge 16.

Since the second plate 32 reliably presses the first packing 20 against the first opening edge 16, the sealing reliability of the power supply device 100 can be increased with a simple structure.

As shown in FIGS. 7 and 8, in the first holding member 30, the first plate 31 is a rectangular plate, and two apex angles are each chamfered. One end of the first plate 31 in the width direction is connected to the second plate through the first bent corner 33a, and the other end of the first plate 31 in the width direction is connected to the second bent corner 33b. 32.

The second plate 32 has a first stepped portion 36a in the width increasing direction near the first bent corner 33a, and a second stepped portion 36b in the width increasing direction near the second bent corner 33b. As a result, the widthwise dimension of the second plate 32 is larger than the widthwise dimension of the first plate 31. Further, the second plate 32 has a first upper slope portion 37a at one apex angle and a second upper slope portion 37b at the other apex angle. The shapes of the first upper inclined part 37a and the second upper inclined part 37b of the second plate 32 correspond to the shapes of the first upper inclined part 12a and the second upper inclined part 12b of the first opening edge 16.

The second plate 32 has a first protrusion 38a between the first step 36a and the first upper slope 37a, and a second protrusion 38b between the second step 36b and the second upper slope 37b. have each. A first through hole 3a is formed in the first protrusion 38a, and a second through hole 3b is formed in the second protrusion 38b.

According to the first embodiment, the first pressing member 30 manufactured by bending a sheet metal is used in the power supply device 100. As a result, the cost of the power supply device 100 can be reduced compared to using a presser member manufactured by assembling a plurality of members or using a presser member manufactured by casting.

[Second embodiment]
Next, a second embodiment of the power supply device 100 will be described with reference to FIG. FIG. 9 is a plan view of the power supply device 100 according to the second embodiment.

As shown in FIG. 9, the widthwise dimension W3 of the first plate 31 is larger than the widthwise dimension W1 of the first opening edge 16. As shown in FIG. The first opening edge 16 has a rectangular cross section. That is, since the dimension W3 is made larger than the dimension W1, the first bent corner 33a and the second bent corner can be formed without providing the first lower inclined part 11a and the second lower inclined part 11b as shown in FIG. There is no gap between the portion 33b and the first packing 20.

[Third embodiment]
In the first and second embodiments, the first holding member 30 has been described as a supporting metal fitting for the power supply device 100, but the present invention is not limited to this. A structure similar to that of the first holding member 30 can also be used as a support fitting suitable for sealing other electrical equipment.

As shown in FIGS. 7 and 8, the support fitting according to the third embodiment includes a first plate 31, a second plate 32, and at least one bent corner 33a. The first plate 31 extends along the first direction. The second plate 32 extends along a second direction that intersects with the first direction. At least one bent corner 33a connects the first plate 31 and the second plate 32. A space 34 exists at the boundary between the first plate 31 and the second plate 32.

The above description of the embodiments describes the preferred embodiments of the present invention, and therefore may include various technically preferable limitations; however, the technical scope of the present invention particularly covers the present invention. Unless otherwise stated, the present invention is not limited to these embodiments. That is, the components in the above embodiment can be replaced with existing components as appropriate, and various variations including combinations with other existing components are possible. The description of the above embodiments is not intended to limit the content of the invention set forth in the claims.

(1) In the first embodiment, it has been explained that the sealing reliability of the power supply device 100 can be improved with a simple structure. According to the present invention, it is sufficient that the main body case 10 is sealed, and the technical scope of the present invention also includes cases where the main body case 10 does not have a waterproof function.

(2) In the first and second embodiments, the first pressing member 30 had the first bent corner 33a and the second bent corner 33b, but the number of bent corners is not limited to this. The first pressing member 30 may have one or more bent corners that connect the first plate 31 and the second plate 32.

(3) In the first and second embodiments, the space 34 exists at the boundary between the first plate 31 and the second plate 32. The term "space" is not limited to a "hole" when the number of bent corners is two or more, but also includes a "cut" when the number of bent corners is one.

(4) In the first embodiment, one main surface 35 of the first plate 31 and the end surface 39 of the second plate 32 adjacent to the space 34 form part of the outer peripheral surface of the first opening edge 16. Although it is assumed that it is flush with surface 13, it is not limited to this.

(5) In the first embodiment, the first lower inclined part 11a and the second lower inclined part 11b are arranged in the main body case at positions facing the first bent corner 33a and the second bent corner 33b of the first holding member 30. 10, but is not limited thereto. Instead of the first lower inclined part 11a and the second lower inclined part 11b, a first lower stepped part and a second lower stepped part may be provided in the main body case 10.

INDUSTRIAL APPLICATION This invention can be utilized in the field of a power supply device and a support fitting.

10 Main body case 11a First lower inclined part 11b Second lower inclined part 15 First opening 16 First opening edge 20 First packing 30 First pressing member 31 First plate 32 Second plate 33a First bent corner part 33b 2 bent corner portion 34 space 100 power supply device

Claims (3)

a main body case having an opening edge forming an opening and accommodating a power supply main body;
a presser member attached to the main body case so as to cover the opening;
A power supply device comprising: a packing disposed between the opening edge and the pressing member,
The pressing member is
a first plate extending along a direction intersecting the opening;
a second plate extending along a direction intersecting the first plate;
two bent corners connecting the first plate and the second plate;
A space exists at the boundary between the first plate and the second plate,
The first plate includes a first main surface opposite to a surface to which the power supply device is attached,
The first main surface of the first plate and the end surface of the second plate adjacent to the space are flush with a part of the outer surface of the opening edge,
The second plate has dimensions and shape in the width direction and height direction that close the opening edge,
The opening edge is parallel to the opening and is inclined with respect to the direction along the side surface of the opening edge, or has a step formed at a position opposite to the two bent corners in the longitudinal direction of the main body case. A power supply device having two inclined parts or two stepped parts. The two bent corners are located at both ends of the first plate in the width direction of the main body case,
The width direction of the main body case is a direction intersecting the longitudinal direction of the main body case,
The power supply device according to claim 1, wherein the space exists between the two bent corners. The power supply device according to claim 1 , wherein a dimension of the first plate in the width direction is larger than a dimension of the opening edge in the width direction.

Images