JP7015993B2 - Ventilation device and manufacturing method of ventilation device - Google Patents

Description

The present invention relates to a ventilator and a method of manufacturing the ventilator.

In the conventional ventilation device and the manufacturing method of the ventilation device, the one in which the adapter plate and the adapter are joined by welding or the one in which the adapter is fixed by a screw is known.

Japanese Patent No. 5408329

In such a conventional ventilation device and a method of manufacturing a ventilation device, for example, a load due to the load of an exhaust duct attached to an adapter may cause a gap between the adapter and the adapter plate to cause wind leakage. I had a problem.

Therefore, the present invention solves the above-mentioned conventional problems, and provides a ventilation device and a method for manufacturing a ventilation device capable of suppressing wind leakage by firmly connecting the adapter and the adapter plate. With the goal.

Then, in order to achieve this object, the ventilation device according to one aspect of the present invention has a suction port.
A box-shaped main body, an adapter plate that is flat and has an outlet and is provided on one surface of the main body, a blower that guides air from the suction port to the outlet, and an adapter. The plate is provided with an adapter for connecting the air outlet and the exhaust duct, and the adapter has a connection surface connected to the adapter plate, a tubular outer wall rising vertically from the connection surface, and a tubular outer wall. The connection surface and the outer peripheral wall are made of an integral metal material, and the adapter plate is provided on the outer periphery of the outlet to regulate sliding of the connection surface in one direction and in a regulated state. The first hook portion that regulates the movement of the adapter plate and the connection surface in the direction away from each other, and the sliding outlet that is provided on the outer periphery of the outlet and that intersects vertically in one direction in the other direction are regulated and regulated. In the state, the second hook portion that restricts the movement of the adapter plate and the connection surface in the direction away from each other and the outer circumference of the outlet facing the first hook portion across the outlet. The first caulking joint portion provided on the side and joined in a state where the adapter plate and the connection surface are overlapped with each other, and the second hook on the outer periphery of the outlet with the outlet sandwiched between them. It is provided with a second caulking joint portion provided on a side facing the portion and joined in a state where the adapter plate and the connection surface are overlapped with each other, and the first hook portion and the second hook portion are provided. Is crimped from the front and back, and the first caulked joint and the second caulked joint are caulked by caulking from the front and back in the same direction as the crimp joint.

Further, the method for manufacturing a ventilation device according to one aspect of the present invention is a box-shaped main body having a suction port and an adapter plate having a flat plate shape and an air outlet and provided on one surface of the main body. A blower portion for guiding air from the suction port to the outlet, and an adapter provided on the adapter plate for connecting the outlet and the exhaust duct are provided, and the adapter is connected to the adapter plate. A tubular outer peripheral wall that rises vertically from the connection surface is provided, and the connection surface and the outer peripheral wall are made of an integral metal material, and the adapter plate is attached to the outer periphery of the outlet. Provided on the outer periphery of the air outlet and a first hook portion provided to regulate sliding in one direction of the connection surface and also to regulate movement of the adapter plate and the connection surface in a direction away from each other in a regulated state. A second hooking portion that regulates sliding in the other direction that intersects vertically in one direction and also regulates movement in the direction in which the adapter plate and the connection surface are separated from each other in a regulated state, and the outer periphery of the air outlet. The first caulking joint portion, which is provided on the side facing the first hook portion across the outlet and is joined in a state where the adapter plate and the connection surface are overlapped with each other, and the blower. A second caulking joint that is provided on the outer periphery of the outlet and is provided on a side facing the second hooking portion across the outlet and is joined in a state where the adapter plate and the connection surface are overlapped with each other. The first hooking portion and the second hooking portion are crimp-bonded by crimping from the front and back, and the first caulking joint portion and the second caulking joint portion are the same as the crimping joint. The caulking joint is performed by caulking from the front and back in the direction, the caulking joint of the first caulking joint portion, the caulking joint of the second caulking joint portion, the crimping joint at the first hooking portion, and the above. It is a method of manufacturing a ventilation device in which the crimping joint at the second hook portion is performed at the same time . This will achieve the intended purpose.

According to the present invention, the connection surface of the adapter is inserted into the first hook portion and the second hook portion of the adapter plate and crimped. Then, the adapter and the adapter plate are joined in a state where the adapter plate and the connection surface of the adapter are overlapped at the first caulking joint portion and the second caulking joint portion. Therefore, the adapter and the adapter plate are firmly connected to each other, and wind leakage can be suppressed.

Further, the connection surface of the adapter was inserted into the first hooking portion and the second hooking portion of the adapter plate, and the connection surface of the adapter plate and the adapter was overlapped at the first caulking joint portion and the second caulking joint portion. In this state, crimp and caulking are performed at the same time. At the same time, crimping and caulking are performed to join the adapter and the adapter plate, so the work process can be simplified.

The schematic perspective view which shows the ventilation apparatus which concerns on embodiment of this invention. The schematic perspective view which shows the adapter which concerns on embodiment. The schematic perspective view which shows the adapter plate which concerns on embodiment. A perspective view and a sectional view showing a state in which the adapter plate and the adapter according to the embodiment are connected. The figure which shows the caulking state of the 1st caulking joint part and the 2nd caulking joint part which concerns on embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment)
FIG. 1 is a schematic perspective view showing a ventilation device according to an embodiment of the present invention.

The ventilation device 20 according to the present embodiment is installed on the ceiling of the room, for example, and is used to exhaust the room air to the outside.

As shown in FIG. 1, the ventilation device 20 includes a main body portion 1, an adapter plate 3, a blower portion 5, and an adapter 6. The main body 1 is box-shaped and has a suction port 2. The adapter plate 3 has a flat plate shape, has an outlet 4, and is provided on one side of the main body 1. Further, the blower portion 5 is built in the main body portion 1 and guides air from the suction port 2 to the outlet 4. The adapter 6 is provided on the adapter plate 3 and connects the air outlet 4 and the exhaust duct. That is, normally, the exhaust duct is connected to the adapter 6 in the installed state of the ventilation device 20.

The blower portion 5 is, for example, a sirocco fan having a scroll casing, and the sirocco fan is rotated by feeding power. When the air blowing unit 5 operates, the indoor air is sucked from the suction port 2, and the sucked indoor air is discharged to the outside through the air blowing unit 5, the adapter 6, and the exhaust duct.

FIG. 2 is a schematic perspective view showing an adapter according to an embodiment.

As shown in FIG. 2, the adapter 6 includes a flat connection surface 7 and a cylindrical outer peripheral wall 8 that rises vertically from the connection surface 7. In the present embodiment, the connecting surface 7 is a substantially rectangular shape in which the four corners are rounded or the like. When the ventilation device 20 is installed, an exhaust duct is connected to the outer peripheral wall 8. The adapter 6 is made of a metal material, and the connection surface 7 and the outer peripheral wall 8 are integrally molded. For example, the adapter 6 is molded by drawing one metal plate. Therefore, the adapter 6 after molding has a thin-walled place and a thick-walled place depending on the place.

The connection surface 7 includes a crimping side 15 protruding from one side of the connection surface 7 on the same surface as the connection surface 7, that is, on the connection surface 7. The crimping side 15 is a rectangular flat plate protruding from one side of the connecting surface 7, and is crimped by the first hooking portion 9 described later. Since the crimping side 15 protrudes from one side of the connecting surface 7, both ends 17 of the crimping side 15 are recessed in the direction of the air outlet 4, that is, toward the opening side. Further, as shown in FIG. 2, in the present embodiment, the length A of one side of the crimping side 15 is shorter than the length B of one side of the connecting surface 7.

FIG. 3 is a schematic perspective view showing an adapter plate according to an embodiment. FIG. 4A is a perspective view showing a state in which the adapter plate and the adapter according to the embodiment are connected. FIG. 4B is a cross-sectional view showing a state in which the adapter plate and the adapter according to the embodiment are connected.

The adapter plate 3 is molded of a metal material. As shown in FIGS. 3 and 4A, the adapter plate 3 has a plurality of (two in the present embodiment) first hooking portions 9 and a plurality of (two in the present embodiment) second. It has a hooking portion 10.

The first hooking portion 9 is provided on the outer periphery of the outlet 4, and is provided corresponding to one side of the connection surface 7 of the adapter 6. Further, it can be said that the first hooking portion 9 is provided corresponding to the crimping side 15. Here, "correspondingly provided" means that when the adapter 6 is attached to the adapter plate 3, the first hook portion 9 is located at a position where one side of the connection surface 7 is located. As shown in FIG. 4B, the first hooking portion 9 is a protrusion cut up so that the cross section is L-shaped. Therefore, when the adapter 6 is attached to the adapter plate 3, the crimping side 15 protruding from one side of the connection surface 7 enters under the first hook portion 9. That is, when the adapter 6 is attached to the adapter plate 3, the first hooking portion 9 restricts sliding of the connection surface 7 in one direction (left direction in FIG. 4B) and the adapter plate in the regulated state. The shape also restricts movement in the direction in which 3 and the connecting surface 7 are separated from each other (upward in FIG. 4B).

The second hooking portion 10 is provided on the outer periphery of the air outlet 4, and is provided corresponding to a side adjacent to one side of the connecting surface 7 of the adapter 6 corresponding to the first hooking portion 9. In other words, the second hooking portion 10 is provided corresponding to the side adjacent to the side on which the crimping side 15 is provided. In addition, when the adapter 6 is attached to the adapter plate 3, the corresponding provision here means that the second side is located at a position adjacent to one side corresponding to the first hooking portion 9 of the connection surface 7. It means that the hooking portion 10 is located. Further, the second hooking portion 10 is a protrusion cut up so that the cross section is L-shaped, like the first hooking portion 9. That is, when the adapter 6 is attached, the second hook portion 10 restricts sliding in the other direction (downward in FIG. 3) perpendicularly intersecting one direction of the connection surface 7, and the adapter plate 3 is in a regulated state. The movement in the direction in which the connection surface 7 and the connection surface 7 are separated (upward in FIG. 4B) is also restricted. That is, the direction in which the first hooking portion 9 regulates the sliding of the connecting surface 7 and the direction in which the second hooking portion 10 regulates the sliding of the connecting surface 7 are orthogonal to each other. Further, the direction in which the first hooking portion 9 restricts the movement of the connecting surface 7 in the regulated state and the direction in which the second hooking portion 10 restricts the movement of the connecting surface 7 in the regulated state are connected to the adapter plate 3. It coincides with the surface 7 in the direction away from each other.

The adapter plate 3 further includes a protrusion 16 that protrudes from the connection surface 7 in the same direction as the first hook 9 and the second hook 10 protrude (frontward in FIG. 3).

The protrusions 16 are provided on both sides of the first hooking portion 9 in FIG. 3 in the vertical direction. The protrusion 16 restricts the vertical movement of the crimping side 15 in FIG. 3 by sandwiching both ends 17 of the crimping side 15 in a state where the adapter 6 is arranged on the adapter plate 3. That is, the protrusion 16 restricts the movement of the adapter 6 in the vertical direction in FIG. 3 in the state where the adapter 6 is arranged on the adapter plate 3. Further, the protrusion 16 has a height of at least twice the thickness of the connection surface 7. Here, the height is the height with the connecting surface 7 as the bottom surface.

As shown in FIGS. 4A and 4B, when the adapter 6 is attached to the adapter plate 3, the crimping side 15 which is one side of the connection surface 7 is inserted into the first hooking portion 9. At this time, since the protrusion 16 sandwiches the crimping side 15, the vertical movement of the adapter 6 in FIG. 4A is restricted. The crimping side 15 has both ends 17 by projecting from one side of the connecting surface 7, and the protruding portions 16 are provided on both sides of the first hooking portion 9. In the present embodiment, two protrusions 16 are provided, and the length between the two protrusions 16 is longer than the length A and shorter than the length B shown in FIG. Therefore, one side provided with the crimping side 15 can be inserted into the first hooking portion 9, but the other side cannot be inserted into the first hooking portion 9. That is, it can be said that the protrusions 16 restrict the movement of the connecting surface 7 to the first hooking portion 9 side (left side in FIG. 4A) on both sides of the first hooking portion 9. Therefore, if the worker mistakenly tries to insert another side into the first hooking portion 9, the other side that does not protrude cannot reach the first hooking portion 9, which is an error. Can be easily noticed.

Further, since the adapter 6 is molded by drawing, the thickness may not be uniform, and the periphery of the connection surface 7, that is, the flange portion may be warped. For example, when the portion corresponding to the protrusion 16 on the other side to which the crimp side 15 is not provided is warped, even if the other side is mistakenly inserted into the first hook portion 9, the other side has the protrusion 16 It gets over and is inserted into the first hooking portion 9. That is, if the other side is mistakenly inserted into the first hooking portion 9, a part thereof is normally sandwiched by the first hooking portion 9, but the portion corresponding to the protrusion 16 is warped. If so, it will get over the protrusion 16. However, in the present embodiment, the protrusion 16 has a height twice the thickness of the connecting surface 7. Therefore, even if the connecting surface 7 is warped, it is difficult to get over the protrusion 16. That is, it is possible to prevent an insertion error in which the other side is accidentally inserted into the first hook portion 9.

Further, the side adjacent to one side provided with the crimping side 15 is inserted into the second hooking portion 10. The insertion into the second hooking portion 10 is omitted because it is almost the same as the above-mentioned contents except that the protruding portion 16 is not provided. In this way, the adapter 6 is restricted to a predetermined position with respect to the adapter plate 3.

Then, the adapter 6 and the adapter plate 3 are used to crimp the first hook portion 9 and the second hook portion 10 from the front and back in a state where the adapter 6 is restricted to the specified position with respect to the adapter plate 3. Will result in a stronger joint.

Next, in the adapter 6, the side facing the side inserted into the first hooking portion 9 and the side facing the side inserted into the second hooking portion 10 will be fixed.

The side inserted into the first hooking portion 9 and the side facing the air outlet 4 are fixed by caulking from the front and back in a state where the adapter plate 3 and the connecting surface 7 are overlapped with each other. The first caulking joint portion 11 is formed by this caulking process. In the present embodiment, the first caulking joints 11 are provided at two locations. Details of the caulking process will be described later.

Similarly, the side inserted into the second hook portion 10 and the side facing each other across the outlet 4 are fixed by caulking from the front and back with the adapter plate 3 and the connection surface 7 overlapped with each other. .. The second caulking joint portion 12 is formed by this caulking process. In the present embodiment, the second caulking joints 12 are provided at two locations.

In this way, by crimping the connection surface 7 of the adapter 6 and the adapter plate 3 to each other and fixing them by caulking, the gap between the adapter 6 and the adapter plate 3 can be further eliminated and wind leakage can be suppressed. Further, since the adapter 6 and the adapter plate 3 can be firmly coupled to each other, there is no gap between the adapter 6 and the adapter plate 3 even when a load of the exhaust duct is applied, for example.

Further, the caulking direction of the first caulking joint portion 11 and the second caulking joint portion 12 and the crimping direction of the first hooking portion 9 and the second hooking portion 10 are performed in the same direction from the front and back. That is, caulking and crimping work is performed from the front and back in the direction perpendicular to the adapter plate 3 and the connection surface 7. Therefore, the work man-hours can be reduced by simultaneously caulking and crimping with a press machine or the like.

FIG. 5 is a diagram showing a caulked state of the first caulked joint portion and the second caulked joint portion according to the present embodiment.

In FIG. 5, the adapter 6 and the adapter plate 3 are crimped by the forming process of the press die. Specifically, the adapter 6 and the adapter plate 3 are caulked by the fitted shape of the cylindrical concave portion 13 and the convex portion 14. Here, it is assumed that the convex portion 14 is formed on the adapter plate 3 side and the concave portion 13 is formed on the adapter 6 side. The convex portion 14 of the adapter plate 3 is fitted into the concave portion 13 inside the adapter 6 (inside the main body portion 1).

The convex direction of caulking should be on the outside of the main body. That is, it is preferable to form the convex portion 14 so as to bulge outward from the main body portion 1. When the adapter 6 is viewed from the outside, the recess 13 projects outward and does not project inside the main body 1. Therefore, it is possible to improve the assembleability and maintainability of the main body 1 without interfering with the internal structure of the main body 1.

Further, in order to ensure the quality of this caulking, it is essential to inspect the external dimensions of the caulked portion. Since the plate thickness of the material of the adapter 6 becomes non-uniform in the process of drawing and forming into an integral type, it is necessary to inspect each caulked portion (first caulked joint portion 11, second caulked joint portion 12). Therefore, the number of caulking points is reduced as much as possible to suppress the inspection man-hours, and the caulking of the first caulking joint portion 11 and the second caulking joint portion 12 and the crimping of the first hooking portion 9 and the second hooking portion 10 are used together. The mass productivity can be reasonably increased.

The ventilation device and the method for manufacturing the ventilation device according to the present invention can be applied to a ventilation device for home use or a building.

1 Main body 2 Suction port 3 Adapter plate 4 Blowout 5 Blower 6 Adapter 7 Connection surface 8 Outer wall 9 1st hooking part 10 2nd hooking part 11 1st caulking joint 12 2nd caulking joint 13 Recess 14 Convex part 15 Crimping side 16 Protruding part 17 Both ends 20 Ventilation device A, B Length

Claims (5)

A box-shaped body with a suction port and
An adapter plate that is flat and has an air outlet and is provided on one surface of the main body, and an air blower that guides air from the suction port to the air outlet.
An adapter provided on the adapter plate for connecting the air outlet and the exhaust duct is provided.
The adapter
The connection surface to be connected to the adapter plate and
With a cylindrical outer wall that rises vertically from the connection surface,
The connection surface and the outer peripheral wall are integrally made of a metal material.
The adapter plate is
A first hooking portion provided on the outer periphery of the air outlet to regulate sliding of the connection surface in one direction and also to regulate movement of the adapter plate and the connection surface in a direction away from each other in a regulated state.
A second hooking portion provided on the outer periphery of the air outlet to regulate sliding in the other direction perpendicular to the one direction and also to regulate movement in the direction in which the adapter plate and the connection surface are separated from each other in a regulated state. When,
The first caulking that is provided on the outer periphery of the air outlet and on the side facing the first hook portion across the air outlet, and is joined in a state where the adapter plate and the connection surface are overlapped with each other. At the joint,
A second caulking that is provided on the outer periphery of the air outlet and on the side facing the second hook portion across the air outlet, and is joined in a state where the adapter plate and the connection surface are overlapped with each other. With a joint ,
The first hooking portion and the second hooking portion are
Crimped and joined by crimping from the front and back,
The first caulking joint and the second caulking joint are
A ventilation device caulked by caulking from the front and back in the same direction as the crimp joint . The first hooking portion and the second hooking portion are
The ventilation device according to claim 1, wherein the adapter plate and the connection surface are fixed in a state of being crimped to each other. The connection surface is
A crimping side that protrudes from one side of the connecting surface on the connecting surface and is crimped by the first hooking portion is provided.
The adapter plate is
The ventilation device according to claim 1 or 2 , further comprising protrusions protruding from the plane of the adapter plate and sandwiching the crimping side on both sides of the first hooking portion. The protrusion is
The ventilation device according to claim 3 , which has a height of at least twice the thickness of the connection surface. A box-shaped body with a suction port and
An adapter plate that is flat and has an air outlet and is provided on one surface of the main body, and an air blower that guides air from the suction port to the air outlet.
An adapter provided on the adapter plate for connecting the air outlet and the exhaust duct is provided.
The adapter
The connection surface to be connected to the adapter plate and
With a cylindrical outer wall that rises vertically from the connection surface,
The connection surface and the outer peripheral wall are integrally made of a metal material.
The adapter plate is
A first hooking portion provided on the outer periphery of the air outlet to regulate sliding of the connection surface in one direction and also to regulate movement of the adapter plate and the connection surface in a direction away from each other in a regulated state.
A second hooking portion provided on the outer periphery of the air outlet to regulate sliding in the other direction perpendicular to the one direction and also to regulate movement in the direction in which the adapter plate and the connection surface are separated from each other in a regulated state. When,
A first caulking joint that is provided on the outer periphery of the air outlet and is provided on a side facing the first hook portion across the air outlet and is joined in a state where the adapter plate and the connection surface are overlapped with each other. Department and
A second caulking joint that is provided on the outer periphery of the air outlet and is provided on a side facing the second hook portion across the air outlet and is joined in a state where the adapter plate and the connection surface are overlapped with each other. With a part,
The first hooking portion and the second hooking portion are
Crimped and joined by crimping from the front and back,
The first caulking joint and the second caulking joint are
It is caulked by caulking from the front and back in the same direction as the crimping.
The caulking joint of the first caulking joint portion, the caulking joint of the second caulking joint portion, the crimping joint at the first hooking portion, and the crimping joining at the second hooking portion are simultaneously performed. How to make a ventilator.

Images