JP2600820Y2 - Garbage dewatering machine - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a garbage dewatering machine to be attached to a drain of a kitchen sink. More specifically, the present invention relates to a centrifugal dewatering type garbage dewatering machine.

[0002]

2. Description of the Related Art A garbage dewatering machine of this type includes a cylindrical case which is attached to a drain of a sink of a sink with the axial direction of the tube being vertical, a rotary dewatering basket installed in the case, and A motor for rotating the dehydration basket.

[0003] JP-A-61-38647, Japanese Utility Model Application Laid-Open No. 63-
Nos. 1647 and 63-77642 describe garbage dewatering machines in which a motor is arranged outside a case. In addition,
Japanese Utility Model Application Laid-Open No. 63-77642 describes that the control unit is also disposed outside the case as shown in FIG. In addition,
In FIG. 5, a dewatering basket 12 is installed in a case 10, and the dewatering basket 12 is rotatable by a motor 14 outside the case 10. A controller 16 is provided beside the motor 14.

Japanese Utility Model Application Laid-Open No. 63-122646 describes a garbage crushing and dewatering apparatus in which a motor is disposed in a case.

[0005]

[Problem to be Solved by the Invention] The control circuit needs to be installed so as not to be exposed to water.
Conventionally, the control circuit is provided outside the case, as disclosed in Japanese Patent Application Laid-Open No. 3-77642.

However, in this case, the integrity of the whole garbage dewatering machine becomes poor, and the control circuit may be damaged by another object hitting the control circuit during transportation or installation.

It is a well-known technique to cover a control circuit board with a potting material. However, when a circuit board covered with a potting material is attached to a case with screws or the like, screw holes are formed so as to penetrate the circuit board, so that the water resistance of the circuit board is reduced.

As described above, in the conventional garbage dewatering machine, the control circuit cannot be installed in the case with good water resistance.

[0009]

A garbage dewatering machine according to the present invention comprises a cylindrical case which is attached to a drain of a sink of a sink with a cylindrical axis extending vertically, and a rotary dewatering device installed in the case. And a motor disposed in the case and configured to rotate the dewatering car.

The garbage dewatering machine according to claim 1 is disposed substantially horizontally at a lower portion in the case, and is fixedly mounted to the case, and is mounted on the circuit board. A drain conduit communicating between the upper and lower sides of the
A potting material that covers the upper and lower surfaces of the circuit board and is in close contact with the inner surface of the case and the outer peripheral surface of the conduit; and a drain opening provided on a bottom surface of the case, The distal end of the conduit is substantially flush with the surface of the potting material.

According to a second aspect of the present invention, in the garbage dewatering machine according to the first aspect, a boss portion is provided to project upward from a bottom of the case,
The circuit board is placed on the boss from above, and the circuit board is fixed to the case by screws screwed into the boss through the circuit board from above the circuit board. The potting material on the upper surface side of the circuit board covers the head of the screw.

[0012]

In the garbage dewatering machine of the present invention, since the circuit board is disposed in the case, the circuit board can be sufficiently protected from mechanical external force such as impact.

This circuit board is covered with a potting material and has good water resistance. In addition, since the conduit is inserted through the circuit board, even if water leaks from above, the water is quickly discharged out of the case through the conduit and the opening at the bottom of the case.

In the garbage dewatering machine according to the second aspect, the screws fixing the circuit board to the case are covered with a potting material, and the screw holes of the circuit board have extremely good water resistance.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the garbage dewatering machine of the present invention will be described with reference to the drawings. FIG. 1 is an overall vertical sectional view showing a garbage dewatering machine according to an embodiment (a sectional view taken along the line II of FIG. 3), FIG. 2 is an enlarged view of the bottom of FIG. 1, and FIG. FIG. 4 is a bottom view of the case, and FIG. 4 is a perspective view showing a structure of a connecting portion between the rotating shaft and the dehydrating basket.

This garbage dewatering machine has a cylindrical case 22.
And a dewatering basket 24 disposed in the case 22, and a motor 26 for driving the basket 24 to rotate.

A housing 28 for holding a motor 26 is provided in the case 22. This housing 2
8 is fixed to the case 22 by screws 27.
The housing 28 has a cylindrical shape, and the motor 26 is attached to a lower portion thereof with screws 29.

Rotary shaft (rotor shaft) 2 of motor 26
6a extends vertically upward. The upper end of the rotating shaft 26a is connected to a joint shaft 32 via a flywheel 30. The flywheel 30 includes screws 34 and 36
The shaft 26a and the joint shaft 32 are fixed to both the shaft 26a and the joint shaft 32, and also have a function as a joint for coaxially connecting the shafts 26a and 32. The joint shaft 32
Are pivotally supported on the upper portion of the housing 28 via bearings 38 and 40 and extend vertically.

At the bottom of the dewatering basket 24, there is provided a tapered hole 42 having a smaller diameter toward the upper side. The tapered hole 4
Reference numeral 2 denotes a through hole penetrating the dewatering basket 24. A relatively thick boss portion 44 for maintaining strength is provided around the tapered hole 42 of the dewatering basket 24. A plurality of radial grooves 46 are provided on the lower end surface of the boss 44.

The head of the joint shaft 32 is tapered so as to engage with the tapered hole 42, and two radially projecting pins 48 are provided at the base of the tapered surface of the joint shaft 32. ing. The pin 48 is engaged with the groove 46 on the lower surface of the dewatering car 24 and transmits the rotation of the motor 26 to the dewatering car 24. The joint shaft 32 and the tapered hole 42 are configured such that when the joint shaft 32 is fitted into the tapered hole 42, the upper end of the joint shaft 32 slightly projects from the upper end of the tapered hole 42.

In FIG. 1, reference numeral 50 denotes an input port for garbage, reference numeral 52 denotes a lid detachably mounted on the input port 50, and reference numeral 54 denotes an outlet for dewatering drainage.

A magnet 56 is provided on the lid 52, and a reed switch 58 is provided on the upper edge of the case 22. When the lid 52 is mounted on the case 22, the reed switch 58 is turned on by the magnet 56, and the motor 26 is activated to centrifugally dehydrate the garbage. The dehydrated water is discharged from the outlet 54.

In this embodiment, the case 22 comprises a case upper 60 and a case lower 62, and the case lower 6
Reference numeral 2 is connected to the housing 28 by a long screw 64 penetrating the boss 66. The housing 28 is fixed to the case upper 60 by the screw 27 as described above. A circuit board 68 is provided in the case lower 62.

The boss 66 protrudes from the bottom of the case lower 62 and protrudes above the circuit board 68 through an opening 70 of the circuit board 68.

A boss portion 72 for supporting the circuit board 68 projects upward from the bottom surface of the case lower 62. The circuit board 68 is mounted on the boss 72. The circuit board 68 is fixed to the boss 72 by screws 76 screwed into the boss 72 through screw holes 74 from above. An opening 78 is provided at the center of the circuit board 68, and a conduit 80 is inserted into the opening 78.

The upper and lower surfaces of the circuit board 68 are filled with potting materials 82 and 84 such as epoxy resin. The potting materials 82 and 84 cover the upper and lower surfaces of the circuit board 68, and cover the inner peripheral surface of the case lower 62 and the conduit 80.
Is tightly attached to the outer peripheral surface. Both upper and lower end surfaces of the conduit 80 are flush with the surfaces of the potting materials 82 and 84. The potting material 82 also covers the head of the screw 76.

At the center of the bottom surface of the case lower 62, an opening 86 for draining water is provided.

The power cable 88 and the ground wire 90 (FIG. 3) connected to the circuit board 68 are connected to the case lower 62.
Cable opening and ground wire opening (not shown)
And is drawn out of the case 22.

Although not shown, the circuit board 68 and the motor 2
6 and the reed switch 58 are connected by lead wires, respectively.

In order to fill the potting materials 82 and 84, the circuit board 68 with the conduit 80 is screwed onto the boss 7 with screws 76.
2 and then potting material 82 is poured from above the case 22 and cured. Next, the case 22 is turned upside down, and the potting material 84 is poured from the opening 86 and cured.

It is to be noted that the conduit 80 is set to be longer than the illustrated state in advance, and after the potting materials 82 and 84 have hardened, the upper and lower ends of the conduit 80 are flush with the surfaces of the potting materials 82 and 84. To cut. In addition, conduit 8
Only the upper end of 0 may be cut.

In the garbage dewatering machine configured as described above, the circuit board 68 is disposed in the case 22.
Resistant to impact. The circuit board 68 includes a potting material 82,
Since the circuit board 68 is completely covered with 84 and the screw 76 is also completely covered with the potting material 82, the water resistance of the circuit board 68 is extremely good. In addition, even if the water falls from above, the water is quickly discharged to the outside of the case 22 through the conduit 80 and the opening 86, so that the circuit board 68 has extremely good water resistance. Become. In the above embodiment, only one conduit 80 is provided, but a plurality of conduits may be provided.

In the above embodiment, the circuit board 68 is installed horizontally. However, the circuit board 68 may have a slight gradient to allow water to flow. In this case, of course, the conduit is located on the lower side of the circuit board.

[0034]

[Effects of the Invention] In the garbage dewatering machine of the present invention, the circuit board is disposed in the case, and a large external force such as an impact is prevented from being applied to the circuit board. In addition, the circuit board is covered with a potting material, and water can be quickly discharged even in the event of water leakage by a conduit, so that the circuit board has extremely good water resistance.

According to the garbage dewatering machine of the second aspect, the screw for fixing the circuit board is completely covered with the potting material, so that the garbage dewatering machine is extremely excellent in water resistance.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a garbage dewatering machine according to an embodiment of the present invention.

FIG. 2 is an enlarged view of the bottom of the embodiment of FIG. 1;

FIG. 3 is a bottom view of a case of the garbage dewatering machine of the embodiment of FIG. 1;

FIG. 4 is an enlarged view of a main part of the embodiment of FIG. 1;

FIG. 5 is a sectional view of a conventional garbage dewatering machine.

[Explanation of symbols]

 Reference Signs List 22 case 22f flange portion 24 dehydration basket 26 motor 28 housing 42 taper hole 54 outlet 60 case upper 62 case lower 68 circuit board 66, 72 boss portion 76 screw 80 conduit 82, 84 potting material 86 drainage opening

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Tatsuzo Yajima 80 Itado, Isehara-shi, Kanagawa Ichikoh Industries Isehara Works (58) Field surveyed (Int. Cl. ⁶ , DB name) B04B 3/00 E03C 1/266

Claims (2)

(57) [Scope of request for utility model registration] 1. A tubular case which is attached to a drain of a sink of a sink with a cylinder axis direction up and down, a rotating dewatering basket installed in the case, and the dewatering cage disposed in the case. A garbage dewatering machine comprising a motor for rotating and driving a basket, a circuit board disposed substantially horizontally at a lower portion in the case, fixedly mounted to the case, and mounted on the circuit board. A conduit for draining communicating between the upper and lower sides of the circuit board; a potting material covering both upper and lower surfaces of the circuit board, and being in close contact with the inner surface of the case and the outer peripheral surface of the conduit; A drain opening provided on a bottom surface of the case, wherein a tip of the conduit is substantially flush with a surface of the potting material. 2. The circuit board according to claim 1, wherein a boss is protruded upward from the bottom of the case, the circuit board is placed on the boss from above, and penetrates the circuit board from above the circuit board. The circuit board is fixed to the case by screws screwed into the boss portion, and a potting material on the upper surface side of the circuit board covers the head of the screw. Garbage dewatering machine.