Drying device
The innovative design of the drying device with an oblique-mounted fan and concave arc surfaces addresses inefficient air flow in conventional devices, enhancing air circulation and reducing energy loss for faster drying.
Patent Information
- Application Number
- JP2024056043
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2044-03-29
AI Technical Summary
Conventional drying devices suffer from inefficient air flow paths due to right-angle bends, leading to significant energy loss and reduced air circulation, which prolongs drying times.
A drying device with a rectangular parallelepiped chamber and a heater unit featuring an oblique-mounted air supply fan, perforated plates, and concave arc-shaped inner surfaces at the corners, along with insulation and movable design, to enhance air circulation efficiency.
The new configuration minimizes energy loss and accelerates drying by improving air circulation, resulting in more efficient and economical operation.
Smart Images

Figure 2025153518000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a drying device, and more particularly to a drying device used to dry clothes, footwear, precision parts, and printed objects. [Background technology]
[0002] The above-mentioned drying device usually comprises a chamber (a partitioned space), and a heater having a blowing fan is disposed in one corner of the chamber.
[0003] The fan and heater are conventionally provided as a heater unit in the configuration shown in Fig. 9. In Fig. 9, 20 indicates a side wall of the room R, and 21 indicates a floor board that is perpendicular to the lower edge of the side wall 20. A heater unit consisting of an air supply fan F and a heater H is provided in one lower corner of the room R that is formed by the side wall 20 and the floor board 21.
[0004] This heater unit has a stainless steel cover C that is bent in an L-shape inside and has a recess D formed in the center of the top.A heater H is placed below this cover C, and one air supply fan F is attached to the upright wall of the recess.
[0005] A wooden cover 10 is provided on the top surface of the cover C to protect it from external shocks and to prevent people entering the room from touching the cover C and getting burned or injured.
[0006] However, with this conventional configuration, the air sent from the air supply fan F is close to the back wall of the cover C, and in particular to the side wall 20, which narrows the air flow path and results in a large loss of air energy. Furthermore, because the air flow path inside the cover C bends at a right angle, collisions with the air flow path occur, resulting in a large loss of energy. Because it is difficult to increase the static pressure of the fan F significantly, the overall pressure loss of the air sent is large, the amount of air circulating within the room R decreases, and time and energy are wasted in drying the target objects. [Prior art documents] [Patent documents]
[0007] The applicant has searched prior technical literature regarding the present invention, but has not found any literature that appears to be particularly related to or similar to the present invention. Summary of the Invention [Problem to be solved by the invention]
[0008] The problem that the present invention aims to solve is that in the configuration of conventional heater units, the air flow path from the air supply fan was inefficient, resulting in large losses in terms of energy and time. [Means for solving the problem]
[0009] In order to solve the above-mentioned problems, the drying device of the present invention has a rectangular parallelepiped chamber with an opening and closing door on one side, a heater unit equipped with a heater and an air supply fan at one corner of the chamber, and a perforated plate with air vents for sending hot air from the heater unit along an air supply path into the chamber, and is characterized in that the corners of the air supply path have concave arc-shaped inner surfaces.
[0010] The drying device according to the present invention is also characterized in that the air supply fan of the heater unit is attached to a mounting part at an oblique angle to the wall panels and floor panels or top panel that form the chamber, and that a plurality of the air supply fans are arranged side by side.
[0011] Furthermore, the drying device according to the present invention is characterized in that the oblique angle is set to 20 degrees with respect to the wall surface.
[0012] The drying device according to the present invention is characterized in that the corners are fitted with curved aluminum alloy plates so that the inner surfaces thereof are configured as concave arc surfaces.
[0013] The drying device according to the present invention is also characterized in that the chamber is formed of thin steel plates sandwiched with high density urethane resin to provide heat insulation.
[0014] Furthermore, the drying apparatus according to the present invention is characterized in that casters and anchors are provided on the outer surface of the floor of the chamber, making it possible to move and fix the position.
[0015] The drying device according to the present invention is characterized in that the heater unit is covered with a stainless steel cover.
[0016] The drying device according to the present invention is characterized in that a wooden cover is provided on the upper surface of the stainless steel cover.
[0017] Furthermore, the drying device according to the present invention is characterized in that the concave arc surface is a curve with a radius of 60 cm. [Effects of the Invention]
[0018] The present invention is configured as described above. As a result, the air sent from the air supply fan passes through the air passage efficiently, is sent into the room, and is circulated to provide hot or warm air to the target object, eliminating losses in terms of energy and time and enabling economically advantageous operation. [Brief explanation of the drawings]
[0019] [Figure 1] 1 is a front view showing a drying device according to an embodiment of the present invention; [Figure 2] FIG. [Figure 3] FIG. [Figure 4] FIG. 3 is a cross-sectional view taken along the line AA in FIG. 2. [Figure 5] FIG. 2 is a cross-sectional view taken along the line BB in FIG. [Figure 6] FIG. 2 is a cross-sectional view taken along the line CC in FIG. [Figure 7] FIG. 7 is an enlarged cross-sectional view of a portion D in FIG. 6. [Figure 8] 1 is a diagram showing the configuration of a heater unit of the present invention. FIG. [Figure 9] FIG. 10 is a diagram showing the configuration of a conventional heater unit. DETAILED DESCRIPTION OF THE INVENTION
[0020] This was achieved by configuring it as shown in the drawings and in the examples. [Example]
[0021] Next, a preferred embodiment of the present invention will be described with reference to FIGS. 1 to 8. Parts common to the conventional example are designated by the same reference numerals, and detailed description thereof will be omitted. In these figures, reference numeral 1 denotes the housing of the drying device. This housing 1 is formed in a rectangular parallelepiped shape, and a sliding door 1a is provided on the front side to allow access to the interior chamber R. Except for the sliding door 1a, the housing 1 is constructed of an insulating board (panel). As shown in FIG. 7, this insulating board has a structure in which high-density urethane resin 6 is sandwiched between thin steel plates 11, 11. However, the use of this insulating board is not a necessary condition of the present invention.
[0022] An operation panel 2 is attached to the outer surface of the upper portion of the left side wall 20 of the housing 1, near the front. Electric wires 4 are drawn into this operation panel 2 from the outside, and a power supply line 4a to a heater unit 5, which will be described later, is provided through an inlet 4b. In addition, one ventilation opening 3, 3 is provided near the back of each of the upper portions of the left and right side walls 20. The inlet 4b is also formed symmetrically on the right side wall 20 so that the heater unit 5 can be positioned on the right side.
[0023] Furthermore, stainless steel pipes 8, 8 are installed in the room R at an upper and central position between the left and right side walls 20, 20, for hanging objects using hangers or for directly placing objects on the pipes, and both ends of each of the stainless steel pipes 8, 8 are attached to pipe holders fixed to the inner surfaces of the side walls 20, 20.
[0024] In addition, casters 22, 22... that allow the housing 1 to be moved and anchors 23, 23... for fixing the position are provided on the underside of the floor board 21, making it possible to freely move the housing 1 that serves as the drying device and fix and stabilize its position.
[0025] Meanwhile, in the figure, reference numeral 5 denotes a heater unit, which includes a heater H and a blower fan F and is disposed in the lower left corner when viewed from the front of the housing 1. In this embodiment, multiple fans F (two in this example) are arranged side by side and are attached to a duralumin mounting portion 24 inclined at 20 degrees relative to the side wall 20. The heater H is disposed adjacent to the floor 21 within a flow path 25 for air sent by the fan F, which is formed by the stainless steel cover C. The heater H runs along the depth width of the housing 1, and can accumulate a certain amount of air sent from the fan F on both sides of the cover C, sandwiching the mounting portion 24, and then add heated air and send it out to the flow path 25. By arranging two fans side by side, both the static pressure and air volume can be increased compared to a single fan.
[0026] In addition, at the corners along the side walls 20 and floor board 21 of the flow path 25, there are provided hot air circulation promotion plates (guide plates) 7b in the shape of a concave arc made of an aluminum alloy plate with an inner surface curved with a radius of 60 cm. These hot air circulation promotion plates 7b are also provided symmetrically at the corners on the opposite side of the flow path 25, eliminating the problem of energy loss caused by the air blown turning at right angles in the past.
[0027] Furthermore, after passing through the stainless steel cover C, the flow path 25 is configured so that its top is open and the hot air is dissipated into the room R, and on the top surface of this flow path 25, the inner wall surface of the side wall 20 facing the top surface of the stainless steel cover C forms ventilation holes for sending the hot air into the room R while regulating the direction and amount, and a board for people to stand on is provided, and in this embodiment, a slat 9 is provided. This slat 9 is not limited to this, and may be any plate with holes, and the arrows and two-dot chain arrows in the figure indicate the flow direction of the air.
[0028] Furthermore, the hot air circulation promoting plates 7a, 7a are also provided with their arcuate surfaces facing inward at both upper corners of the room R, which are made up of the ceiling and side walls 20, 20. This configuration allows the hot air supplied from below to circulate smoothly and without hindrance within the room R, allowing the objects to be dried efficiently. [Industrial Applicability]
[0029] The drying apparatus according to this embodiment is configured as described above. In this embodiment, the drying apparatus is configured to be movable, and can be moved to any position, whether indoors or outdoors. However, it is also possible to configure a room indoors as a drying chamber and apply the present invention to that drying chamber.
[0030] In addition, in this embodiment, the heater unit is configured to be installed on either the left or right side below the chamber R, but if necessary, this heater unit can also be installed above the chamber R. In addition, the stainless steel cover can also be replaced with another material if necessary. [Explanation of symbols]
[0031] 1 chassis 2 Control panel 3 Ventilation vent 4 electric wire 4a power supply line 4b entrance 5 Heater unit 6 High density urethane resin 7a Hot air circulation promotion plate 7b Hot air circulation promotion plate 8 Stainless Steel Pipes 9 Sunoko 10 Wooden Cover 11 Thin iron plate 20 side wall 21 Floorboards 22 Caster 23 Anchor 24 Mounting part 25 flow path C Stainless steel cover D recess F Ventilation fan H heater Room R
Claims
1. A drying apparatus having a rectangular parallelepiped chamber with an opening and closing door on one side, a heater unit equipped with a heater and an air supply fan at one corner of the chamber, and a perforated plate with air vents for sending hot air from the heater unit along an air supply path into the chamber, characterized in that the corners of the air supply path have concave arc-shaped inner surfaces.
2. 2. The drying apparatus according to claim 1, wherein the air supply fan of the heater unit is attached to a mounting portion at an oblique angle to the wall panels and floor panels or top panel that form the chamber.
3. 2. The drying device according to claim 1, wherein a plurality of said air supply fans are arranged in parallel.
4. 3. The drying device according to claim 2, wherein the oblique angle is 20 degrees relative to the wall surface.
5. 2. The drying device according to claim 1, wherein the corners are fitted with curved aluminum alloy plates so as to form concave arc surfaces on the inner surfaces thereof.
6. 2. The drying device according to claim 1, wherein the chamber is formed of a material having a heat insulating structure in which high density urethane resin is sandwiched between thin steel plates.
7. 2. The drying apparatus according to claim 1, wherein the chamber is provided with casters and anchors on the outer surface of the floor thereof, so that the drying apparatus can be moved and fixed in position.
8. 2. The drying device according to claim 1, wherein the heater unit is covered with a stainless steel cover.
9. 9. The drying device according to claim 8, wherein a wooden cover is provided on the upper surface of the stainless steel cover.
10. 2. The drying apparatus according to claim 1, wherein the concave arc surface is a curve with a radius of 60 cm.
Citation Information
Patent Citations
Hot-air dryer
JP1984161492U
Housing unit for object to be dried, rack with the same and drying method using rack
JP1999072288A
Wood drier
JP2012057863A