KR101712653B1 - Disposer - Google Patents

Abstract

The present invention relates to a disposer to dispose of food by smashing the food. More specifically, the present invention relates to a disposer capable of reducing malfunction, caused by the permeation of wastewater, by separating an operating part and a control part and improving an assembly structure in which the assembly and disassembly of the control part are easy, enabling convenient maintenance by easily disassembling a control circuit board in the event of the malfunction of the control part, and maximizing safety and performance and improving durability and lifespan by effectively cooling heat emitted from the operating part and the control part. The disposer includes: a body comprising a smashing part having the upper part combined with a hopper, and including a smashing drum and a rotary cutter installed in an internal smashing chamber, and a combination placement plate formed on the outer surface, and a discharge part combined with the lower part of the smashing part, and including an outlet formed on the other surface to discharge a smashed object, and a shaft tube part protruding downwards from the bottom; an operating part installed to rotate the rotary cutter around the shaft tube part, and comprising a BLDC motor; a control part comprising a control circuit board installed on the combination placement plate of the body to control the motor of the operating part, and a radial plate installed in the lower part of the control circuit board to cool heat emitted from the control circuit board; and a protecting cover installed in the outer upper and lower parts of the body to protect the control part and the operating part.

Description

Disposer {Disposer}

The present invention relates to a disposer having a disassembly structure for disposing a disposer for disposing food waste in a kitchen sink and improving the assembly and disassembly of the disposer.

Generally, the disposer is a sink-installed food waste disposal apparatus for disposing food waste at the lower part of a kitchen sink.

A representative example is a disposer equipped with a multi-stage crushing projection of Korean Patent Laid-Open Publication No. 10-2011-0029859 (Mar. 23, 2011), Korean Patent Laid-Open Publication No. 10-2011-0029860 (Mar. A disposer equipped with a multi-stationary grinding blade of the above-mentioned type, and a garbage disintegrator for a kitchen garbage of the Korean Utility Model Registration Bulletin (Y1) 20-0468687 (March 31, 2013).

Most of the conventional disposers are techniques for improving the grinding ability of the food waste by improving the structure of the grinding drum and the crushing disk driven by the motor.

Meanwhile, in the case of the conventional disposers, the motors are driven in one direction although they are not described in detail in the above prior arts. Also, in consideration of the assemblability of the control circuit board and the motor, .

In the case of such a configuration, there is an inconvenience that brushes and the like, which are consumable parts of the motor, must be replaced periodically, and it is inconvenient that the entire disposer must be separated in order to separate the control circuit board even in the case of moisture caused by leakage, There is a problem that the control circuit board is often broken during the assembly process.

Also, since the motor used in the conventional disposer is a general motor that rotates only the rotating shaft at a high speed, the motor case is hermetically sealed. The cooling efficiency of the motor due to the heat generated by the structure is reduced, which is a factor for maintaining and ensuring the life of the motor.

Therefore, it is possible to eliminate all the problems related to the control circuit board and the motor described above, and to provide a disposer having a novel configuration of a compact size that is simpler to install and install, .

KR 1020110029859 A Mar 23, 2011. KR 1020110029860 A 2011.03.23. KR 200468687 Y1 2013.08.29.

Accordingly, it is an object of the present invention to solve the above-described problems of the prior art, and it is an object of the present invention to improve the assembling and disassembling structure by separating the driving part and the control part to reduce the failure rate due to the infiltration of sewage, And it is an object of the present invention to provide a disposer which is improved in durability and service life, and is excellent in safety and performance by effectively cooling the drive unit and the control unit by disassembling the control circuit board.

Another object of the present invention is to provide a disposer assembling structure in which the size of the disposer as a whole is compact, the space utilization is excellent, the cost is reduced, and the quality is maximized.

In order to solve the above-mentioned problems, according to the present invention, there is provided a crushing unit in which a crushing drum having a crushing drum and a rotary cutter installed in an inner crushing chamber, A discharge port formed in the outer periphery to receive and discharge the pulverized material, and a discharge section in which the shaft portion is projected downward from the bottom; A drive unit provided at a lower portion of the main body to drive the rotary cutter around the shaft tube and comprising a BLDC motor; A control unit including a control circuit board for controlling the motor of the driving unit on the coupling seat of the main body and a heat sink installed below the control circuit board to cool the control circuit board; And a protective cover installed to protect the driving unit and the control unit on the outer upper and lower portions of the main body.

The driving unit may include a retainer provided inside the discharge portion of the main body, a stator fitted to the outer periphery of the shaft portion, a shaft supported inside the shaft portion by a bearing, a shaft extending through the retainer, A spindle shaft; a spindle shaft; a spindle shaft rotatably coupled to the lower end of the spindle shaft so as to surround an outer circumferential surface of the stator, the spindle shaft having a magnet on its inner circumferential surface to function as a rotor for driving a rotary cutter; And a sensor for detecting the position of the magnet.

Further, the driving unit is characterized in that the stator is limitedly coupled to a certain depth only by the step of the shaft portion so that the frictional heat generated by the operation of the stator and the rotor is radiated to the outside, and a space is formed between the stator and the rotor and the main body.

In addition, a plurality of drainage holes are formed on the bottom of the spinneret so as to discharge the wastewater to the inside of the shaft pipe.

According to the present invention, a control circuit board is formed on the outer circumference of the upper end of the main body to prevent the failure rate of the control circuit board due to the leakage phenomenon, The maintenance of the board is simple and the disposer is compact in size through the separated assembling structure of the motor and the control board, thereby providing an excellent space utilization without restriction of space during installation and construction.

In addition, when the disposer is operated, even if leakage occurs due to long friction between the spindle shaft and the retainer, a drain line is induced to discharge the waste water, thereby completely preventing the drive unit from being damaged by leakage, Thereby providing an effect of further improving durability and safety.

In addition, compared with the conventional closed type motor, the heat generated by the frictional heat is effectively dissipated, thereby reducing the occurrence of faults due to the heat generation of the motor itself, thereby maximizing the service life.

1 is a perspective view of a disposer according to the present invention;
2 is an exploded perspective view showing a disposer according to the present invention.
3 is a cross-sectional view showing an assembled state of the disposer according to the present invention
4 is a cross-sectional view showing the state of use of the disposer according to the present invention

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the accompanying drawings. However, these drawings are only for illustrating the contents and scope of the technical idea of the present invention, and the technical scope of the present invention is not limited or changed. It will be apparent to those of ordinary skill in the art that various changes and modifications can be made within the scope of the technical idea of the present invention based on these examples.

In addition, terms and words used in the present specification are terms selected in consideration of functions in the embodiments, and the meaning of the terms may be changed according to the intention or custom of the invention. Therefore, the terms used in the following embodiments are defined according to their definitions when they are specifically defined in this specification, and unless otherwise defined, they should be construed in a sense generally recognized by ordinary artisans.

FIG. 1 is a perspective view showing a disposer according to the present invention, and FIG. 2 is an exploded perspective view showing a disposer according to the present invention.

The disposer according to the present invention is constructed in a compact size so as to facilitate assembly and disassembly by separating and forming a driving unit and a control unit and to simplify maintenance and maintenance in case of occurrence of an error in a driving unit or a control unit, Feature.

The disposer 1 of the present invention includes a main body 2, a driving unit 3, a control unit 4, and a protective cover 5.

The main body 2 is composed of a crushing section 10 to be combined with a hopper 11 provided on the bottom of the sink base and a discharge section 20 which is assembled to the bottom of the crushing section 10 to crush food and discharge the food .

The crushing unit 10 is formed in a tubular shape having a hollow inside so that food can be passed therethrough. The crushing unit 10 is provided with a charging port 12 to be coupled to a lower end of a hopper installed at the bottom of the charging tank. And a crushing hole 13 is formed to have a lower end coupled with the discharge portion 20.

A screw thread 12a is formed on the inner periphery of the upper end of the inlet port 12 so that the lower end of the hopper 11 is simply screwed into the lower end of the hopper 11 and is relatively narrower than the crush hole 13.

The crushing tool 13 is formed to have a relatively larger diameter than the inlet 12 and a crushing chamber 16 in which a crushing drum 14 and a rotary cutter 15 for crushing food are contained, A coupling seat plate 17 radially projecting to engage with the upper end of the discharge portion 20 is formed on the outer peripheral edge of the lower end of the lower plate 16.

 The discharge unit 20 is formed with a storage chamber 21 in which the upper portion is opened and the pulverized product is dropped and stored from the pulverizing unit 13 and a discharge port 22 is formed at the lower outer peripheral edge of the storage chamber 21 And a shaft tube portion 23 having a step 23a at the outer periphery thereof is protruded downward so as to be supported by a spindle shaft which is formed for the purpose of rotational drive of the rotary cutter 15 in the center of the bottom surface of the housing chamber 21, An insertion port (24) for receiving a retainer is formed on the opposite side of the storage chamber (21) inner shaft tube portion (23).

A coupling flange 25 is formed on the outer circumference of the upper end of the discharge portion 20 so as to be assembled with the coupling seat plate 17 of the crushing hole 13 by bolts. A plurality of fastening pins 26 for assembling the lower cover projects downward.

The coupling seat 17 and the coupling flange 25 are formed with a plurality of fastening holes 17a and 25a for bolt assembly.

In the meantime, the construction of the crushing drum 14 and the rotary cutter 15 for crushing foodstuffs is a common technique, and a detailed description thereof will be omitted.

The driving unit 3 is a BLDC (Brushless DC) motor which can rotate in normal and reverse directions, has no wear parts, and has high durability, so that there is no fear of failure.

The retainer 31 is inserted into the insertion port 24 of the main body 2 and the stator 32 is fitted to the outer periphery of the shaft portion 23 and the bearing portion 23 is inserted into the bearing portion 23, The upper end of the spindle shaft 34 is fixedly coupled to the rotary cutter 15 and the lower end of the spindle shaft 34 is fixed to the lower end of the spindle shaft 34. [ A cylindrical rotating body 35 having magnets 35a formed on the inner peripheral surface thereof is coupled and fixed so as to surround the outer peripheral surface of the stator 32 so that the rotating body 35 is rotated by the spindle shaft 34 The rotary cutter 15 is driven and a sensor 36 for detecting the position of the rotary 35 is installed on the bottom surface of the discharge portion 20. [

The upper end of the stator 32 is restricted by the step 23a of the shaft portion 23 so that the stator 32 can be engaged with the shaft portion 23 only to a predetermined depth. Since the spacing space W is formed between the motor and the main body 2 formed by the stator 32 and the rotator 35, the frictional heat generated by the motor operation can be radiated to the outside through the spacing space W do.

The spindle shaft 34 is installed to penetrate the bearing 33 and the retainer 31 from the inside of the shaft portion 23 and one or more bearings 33 are provided for stable rotation support.

A clearance is generated due to friction generated between the spindle shaft 34 and the retainer 31 by the rotation of the spindle shaft 34 at the bottom of the rotator 35. When leakage occurs, A plurality of drainage holes 35b are formed to fall down into the inside of the rotor 35 and to be discharged.

The inlet grooves 34a and 23b are formed in the longitudinal direction of the spindle shaft 34 so that the wastewater can be more smoothly guided downward when the leakage occurs due to the gap formed between the spindle shaft 34 and the retainer 31. [ Or the inside of the shaft portion 23 is formed.

The control unit 4 is provided with a heat radiating plate 40 which is seated on the coupling seat plate 17 of the main body and a control circuit for controlling the rotation speed and the rotating direction of the driving unit 3, The substrate 50 is constituted.

A plurality of radiating fins 41 protrude from the lower surface of the heat sink 40 so as to penetrate the crushing hole 13 of the main body 2 and are connected to the coupling seat plate 17 and the control circuit board 50 A plurality of screw holes 42 for fixing are formed.

The control circuit board 50 has a shape in which the inside is penetrated so as to penetrate the crushing hole 13 of the main body 2 and is provided with an IPU processor 51 for program control of the driving unit 3, And is provided on the bottom surface of the control circuit board 50 so as to increase the cooling efficiency.

The control circuit board 50 and the driving unit 3 are electrically connected to each other through a wire cable 52. In this case, a connector, which is a connector, is used. And the illustration is omitted in the drawings.

The protective cover 5 is divided into an upper cover 60 for protecting the control unit 4 installed on the upper part of the main body 2 and a lower cover 70 for protecting the driving part 3 provided at the lower part, .

The upper part of the upper cover 60 has an upper end at the center of the upper end of the main body 2 and a lower end of the lower cover 70 at the lower end thereof.

The lower cover 70 is formed with a protrusion 71 for assembly in a fitting groove 61 of the upper cover 60 at an upper edge of the upper cover and includes a receiving cylinder 72 into which a motor is inserted, And a plurality of support holes 73 are formed to protrude from the bottom surface of the receiving tube 72. A plurality of through holes 74 are formed in the bottom surface of the receiving tube 72 for discharging drainage of sewage and heat generated during rotation of the motor smoothly.

Hereinafter, the operation of the disposer according to the present invention will be described.

FIG. 3 is a cross-sectional view showing an assembled state of the disposer according to the present invention, and FIG. 4 is a sectional view showing a state of use of the disposer according to the present invention.

The disposer 1 according to the present invention constitutes a main body 2 by combining a crushing section 10 and a discharge section 20 in which a crushing drum 14 and a rotary cutter 15 are accommodated, The drive unit 3 is assembled around the shaft tube portion 23 protruded downward from the bottom of the main body 2 and the control unit 4 is attached to the upper end of the coupling seat plate 17 of the upper side crushing unit 10 of the main body 2 Is assembled,

The drive unit 3 includes a stator 32 fitted into the shaft section 23 and a spindle shaft 34 disposed inside the shaft section 23 at a center of the stowing chamber 21 of the main body 2, The spindle shaft 34 is rotatably supported by a bearing 31 and a bearing 33. The spindle shaft 34 is rotatably supported at its upper end by a rotary cutter 15 and its lower end is rotatably supported by the outer periphery of the stator 32. [ The control unit 50 is mounted on the upper end of the coupling seat plate 17 so that the control circuit board 50 is rotatably mounted on the upper surface of the coupling seat plate 17, The heat sink 40 is assembled together with the lower portion of the control circuit board 50 for efficient cooling processing for the heat generated by the IPU processor 51 that performs program control of the controller 3,

The driving unit 3 and the control unit 4 are electrically connected to each other by a wire cable 52 and a connector. The upper cover 60 for protecting the control unit 4 and the lower cover 60 for protecting the driving unit 3, The protective cover 5 is assembled to the upper and lower outer sides of the main body 2.

The disposer 1 of the present invention is installed at the lower end of the hopper 11 provided at the lower part of the sink of the sink and fastens the inlet 12 of the main body 2 to the lower end of the hopper 11 by screw assembly Simply install.

When the food is put in, the drive unit 3 is operated by the control unit 4 so that the spindle shaft 34 rotates at high speed on the grinding drum 14 and the rotary cutter 15 of the grinding chamber 16, And the pulverized material falls into the storage chamber 21 and is discharged through the discharge port 20 to be sewage-treated.

According to the above configuration, even if leakage occurs in the rotating portion of the spindle shaft 34 during the grinding operation, the water is guided to be lowered and discharged to the bottom portion of the rotator 35 along the inside of the quadrangular sealed shaft portion 23, Since the motor is smoothly discharged to the bottom discharge hole 35b of the conventional motor 35, the integrated structure can not permeate the driving unit 3, so that the electric safety is ensured and the service life of the motor is further improved.

The space portion W is formed between the main body 2 and the motor of the driving portion 3 which is formed around the lower shaft portion 23 of the discharge portion 20 of the main body 2, The frictional heat is more smoothly discharged, thereby improving the durability of the disposer as the motor is prevented from overheating.

In addition, the control circuit board 50 is constructed so as to be adjacent to the upper and lower portions of the motor so as to be separated from the motor, as well as to be assembled on the upper side of the discharge port 22 of the main body 2, The control circuit board 50 can be easily and safely maintained and is completely isolated from the humidity and the failure rate can be prevented. In addition, the control unit 4 can be mounted on the driving unit 3 by the assembling structure separated from the driving unit 3, The overall size of the disposer is made compact as the size of the disposer is reduced, so that it has various advantages such that the space is not restricted when installed at the lower part of the sink.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It should be understood that the scope of the claims is not limited to the examples but covers the scope of the claims and the scope of equivalents thereof.

1: Disposer
2: Body
10: crushing section 11: hopper 12: inlet port 12a:
13: crusher 14: crushing drum
15: rotary cutter 16: crushing chamber 17: coupling seat 17a: fastening hole
20: discharge part 21: storage chamber 22: discharge port 23:
23a: step 23b: inflow groove
24: insertion port 25: engagement flange 25a: fastening hole 26: fastening pin
3:
31: retainer 32: stator 33: bearing 34: spindle shaft
34a: Inflow groove 35: Rotary shaft 35a: Magnet 35b: Drain
36: Sensor
4:
40: heat sink 41: radiating fin 42: screw hole 50: control circuit board
51: IPU processor 52: wire cable
5: Protective cover
60: upper cover 61: fitting groove 70: lower cover 71:
72: receiver 73: support 74: through hole

Claims (4)

A crushing section 10 having an upper end fixed to the hopper 11 and a crushing drum 14 and a rotary cutter 15 installed in the inner crushing chamber 16 and a coupling seat 17 formed on the outer periphery, And a discharge unit 20 coupled to a lower portion of the crushing unit 10 and having a discharge port 22 through the outer circumference and a shaft portion 23 protruding downward from the bottom surface to receive and discharge the pulverized material. );
A drive unit 3 installed at a lower portion of the main body 2 to drive the rotary cutter 15 about the shaft portion 23 and composed of a BLDC motor;
A control circuit board 50 for controlling the motor of the driving unit 3 is provided on the coupling seat plate 17 of the main body 2 and the heat generation of the control circuit board 50 is provided below the control circuit board 50 A control unit 4 including a heat sink 40 installed to cool the heat sink 40;
And a protective cover 5 installed to protect the driving unit 3 and the control unit 4 at the upper and lower outer portions of the main body 10,
The driving unit 3 includes a retainer 31 provided in the discharge unit 20 of the main body 2,
A stator 32 which is fitted to the outer periphery of the shaft portion 23 and which is supported by the bearing 33 to the inside of the shaft portion 23 and is formed so as to pass through the retainer 31, A spindle shaft 34 fixedly coupled to the lower end of the spindle shaft 34 so as to surround the outer circumferential surface of the stator 32 in a cylindrical shape, And a sensor 36 for detecting the position of the magnet 35a of the rotator 35 on the bottom surface of the discharging portion 20 so that the magnet 35a is formed on the inner circumferential surface to function as the magnet 35a And,
Wherein a plurality of drainage holes (35b) are formed on the bottom of the rotor (35) to discharge waste water leaking into the inside of the shaft pipe (23) to the outside.
The method according to claim 1,
The driving unit 3 is limitedly coupled to the fixed depth by only the step 23a of the shaft portion 23 so that the stator 32 and the stator 32 can be released from the frictional heat generated by the operation of the rotator 35 Wherein a spacing space (W) is formed between the stator (32) and the rotor (35) and the main body (2).
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