JPH0366337A - Machine housing waterproof structure for hot air dryer - Google Patents

Abstract

PURPOSE:To prevent such an accident as cleaning water-drainage, etc., drip down to an apparatus, etc., and electric parts, and to efficiently discharge water to the outside of a machine housing by constituting a waterproof structure for guiding water infiltration dripping down from the upper part and allowing it to flow down in the prescribed direction on the inner wall of the machine housing and the wall surface of a blower case contained in the machine housing. CONSTITUTION:As for a blower case 19 of a hot air fan unit 2, in a junction part of a surface case 19a and a back case 19b, a draining edge 29 divided in the left and the right directions from the apex part along the peripheral direction is formed, and also, a discharge water passage for reaching on a gutter-like draining edge 18 formed on the machine housing side from both the left and the right end parts is formed. Also, on the surface of a surface case 19a, an eaves-like draining edge 31 for covering a controller 7 constituted on the surface case 19a and the upper part of a solid-state relay 30 is formed and provided. That is, water infiltration such as cleaning water-drainage, etc., which intrudes into the machine housing and waters the hot air fan unit 2 is guided by the draining edge 29, and also, water dripping down onto the controller and the solid-state relay is allowed to flow down to the side of the surface case 19a by the eaves-like draining edge 31, and watering onto the parts can be prevented.

Description

Detailed Description of the Invention [Industrial Field of Application] The present invention operates by driving a fan and a heater to blow warm air to the predetermined location by sensing a wet hand held over a predetermined location after cleaning. The present invention relates to a hot air drying device that discharges water, and particularly to a waterproof structure for a hot air drying device that has a waterproof structure for efficiently draining water that has entered the inside of the machine casing to the outside of the casing.

[Conventional technology]

Warm air drying equipment is generally installed and used in facilities such as public toilets and washrooms that are used by an unspecified number of users, such as hotels, station buildings, and factories. There are many places where water can get wet due to washing with water when cleaning the interior. Therefore, it is preferable that the cabinet of the hot-air drying device be constructed as tightly sealed as possible to prevent water intrusion caused by cleaning water sprayed from the outside. However, hot air drying equipment has a structure in which hot air is discharged to a predetermined position from the exhaust duct of the hot air unit configured inside the machine housing in order to dry the Genpei after washing. It is necessary to circulate airflow inside and out, and a number of intake holes for this purpose are required to be formed at designated locations on the machine casing, especially on the back side.

[Problem to be Solved by the Invention] Therefore, during cleaning in a facility, water enters the inside of the hot air drying device through the intake hole formed in the hot air drying device, causing damage to the hot air unit, etc. There was a problem in that water could break in equipment, electrical parts, etc., and this could cause damage to the internal structure or malfunction.

The present invention was devised in view of the above-mentioned problems, and is capable of preventing accidents such as cleaning water that has entered the machine housing from dripping onto equipment and electrical parts, and efficiently draining water out of the machine housing. The purpose of the present invention is to provide a waterproof structure for a hot air drying device housing, which has a waterproof structure.

[Means to solve the problem]

In order to achieve the above object, the waterproof structure of the hot air drying device according to the present invention includes a water-shielding edge or a cut edge on the blower case of the hot air fan unit housed and fixed in the air drying device. ,
The purpose of this system is to guide and drain water from cleaning water that has entered the machine casing through the water-shielding edge and water cut edge to the outside of the machine casing, and to remove water from the inside wall of the machine casing and the blower case housed in the machine casing. It has a waterproof structure that allows water that drips onto the outer wall from above to flow down in a predetermined direction.

The above-mentioned waterproof structure has a louver-shaped water-shielding edge that slopes upwards inside the back case and opens only upwards at each of the plurality of intake holes formed in the back case of the machine housing. For the intake hole located at the lowest end of the plurality of intake holes arranged along the semicircular inner end surface, there is a gutter-like water cutting edge that drains water flowing down toward the inner end surface to the outside of the machine casing. It is shaped like this.

In addition, a water cut edge is formed along the circumferential direction of the joint formed on the outer periphery of the blower case constituting the hot air fan unit, and the gutter-like groove is formed at the bottom of the water cut edge on the back case side of the machine casing. A water cut edge is formed to connect to the water cut edge, and an eave-shaped water cut edge is further formed on the upper surface of the blower case to cover the upper part of electrical components such as a solid state relay and a controller installed below. Configure.

[Effect]

According to the above configuration, even if water sprayed during cleaning hangs outside the cabinet of the hot air drying device, its intrusion is prevented by the water-shielding edge constructed inside the intake hole, and even if Even if water enters the machine casing from a certain point, it will flow down along the water cut edge formed on the inside of the machine casing or the outer circumferential surface of the blower case of the hot air fan unit.
Water is drained out of the machine casing through the intake hole formed on the back side of the machine casing.

In addition, the solid state relay, controller, etc. constructed on the front side of the blower case of the hot air fan unit are prevented from breaking due to the water cut edge protruding from the upper part thereof.

〔Example〕

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a waterproof structure for a hot air drying device casing according to the present invention will be described below with reference to the drawings.

In FIGS. 1 to 3, l is a cabinet of a warm air drying device made of synthetic resin material, and inside the cabinet 1 are:
It houses and mounts various structural devices such as a warm air unit 2, a germicidal lamp unit 3, a sensor unit 4, a power switch 5, a changeover switch 6, a controller 7, and terminal blocks 8 and 9. The machine casing 1 has a hanging structure 10 and a plurality of screws 1). 1) It is formed by a front case 1a and a back case 1b which can be separated and joined together. It has a semi-cylindrical shape, and forms a hot air outlet 13 in which an exhaust duct 22 (to be described later) of the hot air fan unit 2 is positioned below, and a back case lb.
A germicidal lamp unit 3 is fixed on the back side of the discharge port 13, and a terminal block 8.9 connected to the sensor unit 4, the power switch 5, and the changeover switch 6 is fixed on the inner surface of the back case tb, Hot air unit 2 from the outside of the surface
It is designed so that it can be assembled by covering the surface case 1a which forms its own storage space.

The back case ib of the machine housing 1 is formed in a step-like manner, with a small-diameter rear section that accommodates the electric motor 12 and a large-diameter front section that is continuous with the rear section and accommodates a fan 23, which will be described later. A plurality of intake holes 14, 14, . Each of the intake holes 14.14... is formed with a louver-shaped water-shielding edge 15.15... which slopes upwardly inward and opens only upward, and the intake holes 14.14...
It is constructed so that it can prevent water from breaking in the horizontal direction. Furthermore, an edge 16 that is curved outward is formed on the upper outer edge of each louver-shaped water-shielding edge 15, and an edge 17 that is radiused inward is formed on the lower inner edge, and each of the air intake holes 14.1
4... to the inside of the machine housing 1, each ventilation path is oriented in the vertical direction. Therefore, each intake hole 14.1
The lower inner edge 17 of the water-shielding edge 15. Direct intrusion into the machine casing 1 is prevented by regulating the water to be splashed up to the inner surface side of the water-shielding edge 15 located at the water-blocking edge 15. In addition, the intake holes 14 formed at the lowest end of the group of intake holes 14, 14 guide water flowing down along the end surface of the back case 1b to the outside of the machine housing 1 through the intake holes 14. A gutter-like water cutting edge 18 for draining water is formed. The water edging 8 also has a structure that guides water flowing down from the hot air unit 2 side, which will be described later.

The blower case 19 constituting the hot air fan unit 2 is made of synthetic resin material and has a bottom shape, and as shown in FIGS. 19a and back case 19b are integrally joined.

The blower case 19 is provided with a ventilation duct 21 in the internal circumferential direction, and an exhaust duct 22 that communicates with the ventilation duct 21 and opens into the hot air outlet 13 of the machine casing 1. , a so-called sirocco type fan 23 is installed in the ventilation duct 21, and a heater 2 for ventilation heating is installed in the exhaust duct 22.
4, and the fan 23 is connected and fixed to the drive shaft 25 of the electric motor 12 so that it can freely rotate within the ventilation duct 21. The above exhaust duct 22
has a structure that bends toward the front side at its base as a whole, and is formed so that ventilation is discharged to the front of the lower part of the blower case 19, and the lower end of the front case 19a can be opened and closed or detached freely. The heater 24 is formed separately as an M26, and the heater 24 is M26 so that the heater 24 can be maintained, inspected, or replaced as needed. The blower case 19 is
In this embodiment, a plurality of support arms 27, 27... (three in the illustrated example) are fixed to the outer periphery of the electric motor 12.
It has a structure that is supported and fixed to the electric motor 12 by
Connect the electric @12 with multiple screws 2 inside the back case lb of the machine casing l.
8.28... is used to support the hot air fan unit 2 itself within the machine housing 1.

The blower case 19 of the hot air fan unit 2 forms a water cut edge 29 that divides the air from at least the top in the left and right directions along the circumferential direction at the joint between the front case 19a and the back case 19b, and also forms a water cut edge 29 that divides the air from the left and right ends at least. A drainage channel is formed that reaches above the gutter-like cut edge 18 formed on the side of the housing 1. Further, on the surface of the surface case 19a, the surface case 1
An eave-like water cut edge 31 is formed to cover the upper part of the controller 7 and solid state relay 30 configured on the top part 9a.

In other words, water such as cleaning water that has entered the machine casing 1 and splashed onto the hot air fan unit 2 is guided by the water cutting edge 29, and water that drips onto the controller and the solitary state relay is prevented from flowing through the eaves. The shaped water cut edge 31 allows the water to flow down to the side of the surface case 19a, thereby preventing water from getting onto the above-mentioned parts.

Note that the components and shapes of the water-shielding edge 15 and water cut edge 18 formed on the side of the machine casing 1, and the water cut edge 29, 31 formed on the blower case side of the hot air fan unit 2, etc. are limited to those in the above embodiments. It goes without saying that the present invention is not limited to the above, and that modifications can be made as appropriate within the scope of the purpose of the present invention.

The optical sensor unit 4 fixed on the bottom surface of the machine casing is
It is equipped with a pair of light emitting element and light receiving element, which detects the hand held above the hot air outlet 13 and sends a signal to the central control mechanism (not shown) built in the machine casing 1 as to the presence or absence of the hand. It is configured so that it can transmit. When the sensor unit 4 of the central control mechanism detects the presence of a hand, the electric motor 12 and the heater 24 are kept energized by the output signal, and the electric motor 12 is rotated by this energization. When this ventilation passes through the heater 24, it is heated, and the hot air discharge port 13
It is discharged to a predetermined position (arrow A) and is blown onto a hand held over the predetermined position to evaporate and dry the moisture.

〔Effect of the invention〕

Since the waterproof structure of the machine casing of the hot air drying device according to the present invention is constructed as described above, even if the air intake hole of the machine casing is exposed to water sprayed during cleaning of the installed facility, - In addition to preventing water from seeping in through the intake holes, even if cleaning water floods into the machine housing, water-shielding edges and cut edges formed on the inner wall of the machine housing and the blower case of the warm air unit will prevent water from spilling onto the components. It is possible to prevent water from flowing in a predetermined direction and efficiently drain water from the air intake hole to the outside of the machine casing. Therefore, it has excellent effects such as expanding the application of the hot air drying device according to the present invention in public facilities and improving the usability of the hot air drying device.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view showing an embodiment of the waterproof structure of the machine casing of the hot air drying device according to the present invention, Fig. 2 is a partially cutaway front view of the machine casing with the surface case removed, and Fig. 3 is also a partially cutaway side view, Fig. 4 is a front view showing the inner surface of the back case of the machine, Fig. 5 is a partially cutaway plan view, Fig. 6 is a partially cutaway side view, and Fig. 7 is the same partially cutaway side view. FIG. 8 is a partially cutaway front view, and FIG. 9 is a partially cutaway side view, showing the structure of the warm air fan unit. 1...Machine casing 1b...Back case 14...Intake hole 16.17...Edge 19...Blower case 19b...Back case 1a...Front case 2...Hot air fan unit 15...Mizukirim 18...Mizukirim 19a...Surface case 29.31...Mizukirim

Claims (5)

[Claims] (1) In a hot air drying device in which a sensor detects when a hand is placed over a predetermined position and drives a fan and a heater to discharge hot air to the predetermined position, it is housed in the inner wall of the machine cabinet and the machine cabinet. A waterproof structure for a machine casing of a hot air drying device, characterized in that the waterproof structure is configured to guide water dripping from above onto the wall of a blower case in a predetermined direction. (2) the waterproof structure is inclined upwardly inside the back case of each of the plurality of intake holes formed in the back case of the machine housing;
2. A waterproof structure for a hot air drying device according to claim 1, further comprising a louver-shaped water-blocking edge that opens only upward. (3) A gutter that drains water flowing down in the direction of the inner wall to the outside of the machine casing, for the intake hole located at the lowest end of the plurality of intake holes arranged along the semicircular inner wall of the back case. 3. The waterproof structure for a hot air drying device according to claim 1, further comprising a water cut edge in the shape of a shape. (4) A water cut edge is formed along the circumferential direction at the joint formed on the outer periphery of the blower case that constitutes the hot air fan unit, and the lower part of the water cut edge is connected to a gutter-shaped water cut edge formed on the machine casing side. 4. The waterproof structure for a machine casing of a hot air drying device according to claim 1, wherein a water cut edge is formed. (5) A feature is that an eave-shaped water cut edge is formed on the upper wall of the blower case that constitutes the hot air fan unit to cover the upper part of electrical components such as a solid state relay and a controller that are installed below the blower case. A waterproof structure for a machine casing of a hot air drying device according to claim 1.