Drying device

The drying device addresses inefficiencies in conventional air flow by using a concave arc structure and obliquely mounted fans within the drying device, enhancing air circulation and reducing energy and time losses.

JP7658628B1Active Publication Date: 2025-04-08WAKO SYST CONTROL CO LTD
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Patent Information

Application Number
JP2024056043
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2024-03-29
Publication Date
2025-04-08
Estimated Expiration
2044-03-29

AI Technical Summary

Technical Problem

Conventional drying device heater units suffer from inefficient air flow due to narrow air feed passages and right-angle bends, leading to significant energy and time losses.

Method used

The drying device features a rectangular parallelepiped chamber with a heater unit having a concave arc structure, obliquely mounted fans, and a perforated plate for improved air flow, reducing energy losses and enhancing air circulation.

Benefits of technology

This configuration ensures efficient air flow and reduces energy and time losses, resulting in more economical and effective drying operations.

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Abstract

In the configuration of the conventional heater unit, the air flow path from the air supply fan had poor air supply efficiency, resulting in large losses in terms of energy and time. [Solution] In a drying device having a rectangular chamber with an opening and closing door on one side, a heater unit equipped with a heater and an air supply fan is provided in one corner of the chamber, and a perforated plate with air holes for sending hot air from the heater unit along an air supply path into the chamber, the corner of the air supply path is configured with an inner surface that is concave arc-shaped.
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Description

[Technical field]

[0001] The present invention relates to a drying device, and more particularly to a drying device used for drying clothes and footwear, as well as precision parts and printed objects. [Background technology]

[0002] The above-mentioned drying device usually constitutes a room (a partitioned space), and a heater having a blowing fan is disposed in one corner of the room.

[0003] The fan and heater are conventionally provided as a heater unit as shown in Fig. 9. In Fig. 9, 20 indicates a side wall of the room R, and 21 indicates a floor plate 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 constituted by the side wall 20 and the floor plate 21.

[0004] This heater unit has a stainless steel cover C that is bent into an L shape internally 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 upper surface of the cover C to prevent external impacts and to prevent people entering the room from touching the cover C and getting injured, such as burned.

[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, so the air flow path becomes narrow and the energy loss of the air supply is large, and furthermore, because the air supply path inside the cover C is bent at a right angle, collisions with the air supply path occur, resulting in a large loss of energy. Since it is difficult to increase the static pressure of the fan F so much, the overall pressure loss of the air supply is large, the amount of air circulating inside the room R decreases, and time and energy are lost in drying the target object. [Prior art documents] [Patent documents]

[0007] The applicant has conducted a search for prior technical documents regarding the present invention, but has not found any documents that appear 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 had poor air supply efficiency, resulting in large losses in terms of energy and time. [Means for solving the problem]

[0009] In order to solve the above problems, the drying apparatus according to 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 is provided at one corner of the chamber, and a perforated plate is provided with ventilation holes for sending hot air from the heater unit along an air supply path into the chamber, Between the air supply fan and the heater The corners are configured with a concave arc on the inside. The heater unit's air supply fan is attached to a mounting part at an oblique angle to the wall and floor panels or top plate that form the room. It is characterized by the following.

[0010] The drying device according to the present invention is 、 The above-mentioned air supply fan is characterized in that a plurality of fans are arranged in parallel.

[0011] Furthermore, the drying device according to the present invention is characterized in that the oblique angle is 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 as to form the inner surfaces into concave arc surfaces.

[0013] The drying device according to the present invention is also characterized in that the material forming the chamber is a thin iron plate sandwiched with high density urethane resin to provide a heat insulating structure.

[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 also 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. Effect of the Invention

[0018] The present invention is configured as described above. Therefore, the air sent from the air supply fan passes through the flow passage efficiently, is sent into the room, and provides hot or warm air to the target object and is circulated, eliminating losses in terms of energy and time, and enabling economically advantageous operation to be performed. [Brief description of the drawings]

[0019] [Figure 1] 1 is a front view showing a drying device according to an embodiment of the present invention; [Diagram 2] FIG. [Diagram 3] FIG. [Figure 4] FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. [Diagram 5] FIG. 2 is a cross-sectional view taken along line BB in FIG. [Figure 6] 2 is a cross-sectional view taken along line CC in FIG. 1. [Figure 7]FIG. 7 is an enlarged cross-sectional view of a portion D in FIG. 6. [Figure 8] FIG. 2 is a diagram showing the configuration of a heater unit according to the present invention. [Figure 9] FIG. 1 is a diagram showing the configuration of a conventional heater unit. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] This was achieved by configuring as shown in the drawings and in the examples. EXAMPLES

[0021] Next, a preferred embodiment of the present invention will be described with reference to Figs. 1 to 8. The same reference numerals are used to designate parts common to the conventional example, and detailed description 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. The housing 1 is made of a heat insulating plate (panel) except for the sliding door 1a, and the structure of this heat insulating plate is such that a high-density urethane resin 6 is sandwiched between thin steel plates 11, 11, as shown in Fig. 7. However, the use of this heat insulating plate is not a necessary condition of the present invention.

[0022] An operation panel 2 is attached near the outer front surface of the upper portion of the left side wall 20 of the housing 1. 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 rear surface of each of the upper portions of the left and right side walls 20. The above-mentioned inlet 4b is also formed symmetrically on the right side wall 20 side so that the heater unit 5 can be disposed 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 suspending objects using a hanger or for directly hanging them, and both ends of each of the stainless steel pipes 8, 8 are attached to pipe receivers fixed to the inner surfaces of the side walls 20, 20.

[0024] In addition, casters 22, 22... for enabling movement and anchors 23, 23... for fixing the position are provided on the underside of the floor board 21 of the housing 1, making it possible to freely move the housing 1 serving as the drying device and to fix and stabilize its position.

[0025] On the other hand, in the figure, 5 indicates a heater unit, which has 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, a plurality of fans F, two in this embodiment, are arranged side by side, and are attached to a mounting part 24 made of duralumin inclined at 20 degrees with respect to the side wall 20. The heater H is provided close to the floor surface 21 within a flow path 25 for the air sent by the fan F, which is formed by the stainless steel cover C, and is arranged along the depth width of the housing 1. The air sent from the fan F can be stored to a certain extent on both sides of the cover C, which sandwich the mounting part 24, and can be sent to the flow path 25 by adding hot air. By arranging two fans side by side, both the static pressure and the air volume can be increased compared to the case of one unit.

[0026] In addition, at the corners along the side walls 20 and floor plate 21 of the above-mentioned 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. This hot air circulation promotion plate 7b is 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 blowing turning at right angles in the past.

[0027] After passing through the stainless steel cover C, the flow path 25 is configured so that the top is open and the hot air is dissipated into the room R, and on the top of this flow path 25, the inner wall surface of the side wall 20 facing the top 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 arranged, and in this embodiment, a lattice 9 is provided. This lattice 9 is not limited to this, and may be any plate with holes, and the arrow and the two-dot chain arrow 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 formed by the ceiling and side walls 20, 20. With this configuration, the hot air supplied from below circulates smoothly and unhindered inside the room R, allowing the objects to be dried efficiently. [Industrial Applicability]

[0029] The drying device according to this embodiment is configured as described above. In this embodiment, the drying device is configured to be movable, and can be moved to any position, whether indoors or outdoors, but it is also possible to configure one room indoors as a drying chamber and apply the present invention to that drying chamber.

[0030] In this embodiment, the heater unit is disposed on either the left or right side below the chamber R, but if necessary, the heater unit can be disposed above the chamber R. In addition, the stainless steel cover can be replaced with another material if necessary. [Explanation of symbols]

[0031] 1 Case 2 Control panel 3 Ventilation vent 4 electric wire 4a power supply line 4b Introduction 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. The Child 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 device 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 provided at one corner of the chamber, and a perforated plate having air holes for sending hot air from the heater unit along an air supply path into the chamber, wherein a corner of the air supply path between the air supply fan and the heater has an inner surface formed in a concave arc shape, A drying apparatus characterized in that 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.

2. 2. The drying apparatus according to claim 1, wherein a plurality of said ventilation fans are arranged in parallel.

3. 2. The drying apparatus according to claim 1, wherein the oblique angle is 20 degrees with respect to the wall surface.

4. 2. The drying device according to claim 1, wherein the corners are fitted with curved aluminum alloy plates so as to form inner surfaces of the corners into concave arc surfaces.

5. 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 iron plates.

6. 2. The drying apparatus according to claim 1, wherein the outer surface of the floor of the chamber is provided with casters and anchors so that the position can be moved and fixed.

7. 2. The drying apparatus according to claim 1, wherein the heater unit is covered with a stainless steel cover.

8. 8. The drying apparatus according to claim 7, wherein a wooden cover is provided on the upper surface of the stainless steel cover.

9. 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