JP2007236358A - Vacuum microwave thawing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vacuum microwave generator which is easily installed even in a narrow kitchen. <P>SOLUTION: Since both a vacuum pump 68 and a magnetron 72 are stored in a box-like cabinet 1 having the same width as that of a chamber 30 collectively in the left side of the chamber 30, the width size of the cabinet 1 is reduced in comparison with a case in which the chamber 30, the vacuum pump 68 and the magnetron 72 are arranged in a line in the right and left direction. Furthermore, since a sink 15 is connected to the top part of the cabinet 1, a space for a sink 15 normally secured in a kitchen is used as a space for installing the cabinet 1 in a kitchen. Consequently, since a vertically long space of exclusive use as a space for installing the cabinet 1 in a kitchen is dispensed with, the vacuum microwave thawing machine is easily installed even in a narrow kitchen. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a vacuum microwave thawing machine capable of thawing frozen foods such as frozen foods.

Some vacuum microwave thawing machines have a thawing container, a decompressor, and a microwave generator housed in a common cabinet. The decompressor depressurizes the thawing container, the microwave generator irradiates the thawing container with microwaves, and the frozen material in the thawing container is depressurized in the thawing container from the microwave generator. Thawing is performed based on the microwave irradiation.
Japanese Patent Laid-Open No. 2004-254637

  In the case of a conventional vacuum microwave thawing machine, the cabinet is configured in a vertically long box shape whose height in the vertical direction is larger than the width in the horizontal direction, and the thawing container is stored in the upper end of the cabinet. Since each of the microwave generators is stored under the thawing container, a vertically long dedicated space is required as a space for installing the cabinet in the kitchen. For this reason, there is a problem that it is difficult to install a cabinet because a vertically long dedicated space cannot be secured particularly in a narrow kitchen.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a vacuum microwave generator that can be easily installed even in a narrow kitchen.

  A vacuum microwave thawing machine according to the present invention has a thawing chamber in which a frozen material is stored, and a thawing container provided on the front surface with an inlet for charging the frozen material into the thawing chamber, A door provided at the front end of the thawing container that is movable between an open state in which the inlet is opened and a closed state in which the inlet of the thawing chamber is closed, and the door is operated from the front. A cabinet that has a horizontally long box shape in which the width dimension in the left-right direction is larger than the height dimension in the vertical direction, and receives water discharged from the water tap And a water tank provided at the upper end of the cabinet, and the decompression chamber is depressurized, and is housed in the cabinet on one side of the left side and the right side of the thaw container. Reduced pressure And a microwave generator for irradiating microwaves in the thawing chamber, and having a microwave generator housed on the same side as the decompressor in the cabinet. Yes.

  Since both the decompressor and the microwave generator are stored together in either the left side or the right side of the thawing container in the same horizontally long box-shaped cabinet as the thawing container, the thawing container and the decompressor The width dimension in the left-right direction of the cabinet is smaller than when the microwave generators are arranged in a line in the left-right direction. And since the water tank is joined to the upper end part of a cabinet, the space for the water tank normally ensured in the kitchen can be utilized as a space for installing a cabinet in a kitchen. This eliminates the need for a vertically dedicated space as a space for installing the cabinet in the kitchen. Therefore, the vacuum microwave defroster can be easily installed even in a narrow kitchen.

[Example 1]
As shown in FIG. 1, the cabinet 1 has a horizontally-long rectangular box shape in which the width dimension in the left-right direction is set larger than the height dimension in the vertical direction, and the depth dimension in the front-rear direction of the cabinet 1 is It is set smaller than the height dimension in the vertical direction. The cabinet 1 has a bottom plate 2, a left side plate 3, a right side plate 4, a rear plate 5, four angles 6, a channel 7 and a frame 8.

  As shown in FIG. 3, the bottom plate 2 has a rectangular shape whose depth dimension is smaller than the width dimension, and a vertical plate-like flange 9 surrounding the bottom plate 2 is formed on the bottom plate 2. The four angles 6 and one channel 7 are both joined to the flange 9 of the bottom plate 2, and the angles 6 are the left front corner, the right front corner, the left rear corner, and the right rear corner of the bottom plate 2. The channel 7 is disposed between the angle 6 at the left front corner and the angle 6 at the right front corner. The frame 8 is configured by joining four angles into a rectangular frame shape, and the upper ends of the four angles 6 and one channel 7 are joined to the frame 8. Each of the left side plate 3 and the right side plate 4 has a plate shape whose depth dimension is smaller than the height dimension, and is joined to both the frame 8 and the flange 9. The rear plate 5 has a plate shape whose height is smaller than the width, and is joined to both the frame 8 and the flange 9. That is, the cabinet 1 is such that the lower surface, the left side surface, the right side surface, and the rear surface are closed, and the front surface and the upper surface of the cabinet 1 are open.

  As shown in FIG. 3, adjuster legs 10 are mounted on the lower surface of the bottom plate 2 so as to be positioned at the left front corner, the right front corner, the left rear corner, and the right rear corner, respectively. As shown in FIG. 4, each of these adjuster legs 10 has a nut 11 fixed to the bottom plate 2, a bolt 12 screwed to the nut 11 through the bottom plate 2, and a bolt head 13 fixed to the lower end portion of the bolt 12. The bottom plate 2 is installed in a separated state on the floor surface by placing each of the four bolt heads 13 on the floor surface of a kitchen or the like. The separation distance of the bottom plate 2 from the floor surface is the nut of each bolt 12. 11 is adjustable based on the amount of screwing with respect to 11. Each of these adjuster legs 10 corresponds to a leg.

  As shown in FIG. 3, a square cylindrical sink receiver 14 is joined to the frame 8, and a sink 15 corresponding to a water tank is joined to the sink receiver 14. The sink 15 has an upper surface opened, and the upper surface of the cabinet 1 is closed by the sink 15. As shown in FIG. 2, a water faucet 16 is fixed to the rear end of the sink 15 at the right end, and the water faucet 16 is connected to a public water pipe via a vertical water pipe 17. Has been. The water supply pipe 17 is disposed outside the cabinet 1, and tap water is supplied to the water tap 16 from a public water pipe through the water supply pipe 17.

  As shown in FIG. 4, the drain port 18 is fixed to the bottom plate of the sink 15 at the left end, and the bottom plate of the sink 15 is inclined downward toward the drain port 18. The drain port 18 has a cylindrical shape with a bottom plate, and the internal space of the drain port 18 is connected to the internal space of the sink 15 via the upper surface of the drain port 18. The drain port 18 allows water to flow into the sink 15, and a connection port 19 is formed on the bottom plate of the drain port 18. The connection port 19 refers to a cylindrical portion protruding downward from the bottom plate of the drain port 18, and the upper end portion of the drain hose 20 is connected to the outer peripheral surface of the connection port 19. This drain hose 20 discharges the water flowing into the drain port 18 from the sink 15 to the outside of the machine, and the lower end of the drain hose 20 has a hose insertion hole 21 in the rear plate 5 as shown in FIG. It is pulled out to the rear of the cabinet 1 through.

  As shown in FIG. 4, a drip-proof cover 22 made of synthetic resin is fixed to the surface of the sink 15. The drip-proof cover 22 has a cylindrical holder 23, a plate-shaped cover 24, and a cylindrical guard 25, and is fixed to the sink 15 by joining the holder 23 to the outer peripheral surface of the sink 15. The holder 23 is joined to the outer peripheral surface of the sink 15 via a plurality of double-sided tapes. The cover 24 covers the entire lower surface of the sink 15 with a gap from below, and the holder 23 is an outer peripheral surface of the sink 15. Is covered from the outer periphery via a gap. The cover 24 of the drip-proof cover 22 receives condensed water dripping from the lower surface of the sink 15 when dew condensation occurs on the lower surface of the sink 15. The upper surface of the cover 24 allows the condensed water to flow toward the guard 25. Inclined downward toward the guard 25.

  The guard 25 has a cylindrical shape in which each of the inner diameter dimension and the outer diameter dimension decreases from top to bottom, and the connection portion between the connection port 19 and the drain hose 20 is located inside the guard 25 together with the drain port 18. It is stored. The guard 25 discharges condensed water flowing along the upper surface of the cover 24, and the condensed water drops from the upper surface of the cover 24 along the inner peripheral surface of the guard 25. The guard 25 corresponds to a droplet discharge unit, and an evaporating dish 26 having an upper surface is disposed below the guard 25. The evaporating dish 26 is detachably fixed on the bottom plate 2 of the cabinet 1, and condensed water falls from the inner peripheral surface of the guard 25 into the evaporating dish 26 and is stored in the evaporating dish 26.

  As shown in FIG. 3, a chamber front plate 31 of the chamber 30 is fixed to both the angle 6 at the right front corner and the channel 7 at the center. The chamber 30 is formed of a rectangular box-shaped pressure-resistant container having an open front surface, and the chamber front plate 31 refers to a flange-shaped portion surrounding the chamber 30. A spatial thawing chamber 32 is formed inside the chamber 30. The thawing chamber 32 stores frozen food corresponding to a frozen product, and the front surface of the chamber 30 functions as an entrance / exit 33 for taking in and out the frozen food from the thawing chamber 32. The chamber 30 corresponds to a thawing container, and the inlet / outlet 33 corresponds to an inlet.

  As shown in FIG. 3, a door 34 is attached to the chamber front plate 31. The door 34 is pivotable about a vertical axis at the right end between a closed state (see FIG. 1) contacting the chamber front plate 31 and an open state (see FIG. 3) spaced forward from the chamber front plate 31. The entrance 33 of the thawing chamber 32 is opened when the door 34 is opened, and is closed when the door 34 is closed. As shown in FIG. 1, a handle 35 is attached to the left end portion of the door 34, and the handle 35 has a vertical lock position (see FIG. 1) in which the tip portion is directed downward, and the tip portion is obliquely lower left. An unlock position (refer to FIG. 3) directed to the center is rotatable about a base end portion axis extending in the front-rear direction. That is, the chamber 30 is housed in the cabinet 1 so that the door 34 can be operated from the front.

  As shown in FIG. 3, a cylindrical rotor 36 is concentrically connected to the shaft of the handle 35 at the rear end. The rotor 36 has two lock pins 37. Each lock pin 37 is in a horizontal unlocked state when the handle 35 is rotated to the unlock position, and the handle 35 is in the lock position. The locked state is inclined with respect to the vertical line based on the pivoting operation.

  As shown in FIG. 3, a circular rotor insertion hole 38 and two horizontal lock holes 39 are formed in the chamber front plate 31, and the door 34 is closed from the open state at the unlock position of the handle 35. When operated to the state, each lock pin 37 passes through the lock hole 39 and moves behind the chamber front plate 31. When the handle 35 is operated from the unlocked position to the locked position with the door 34 closed, each lock pin 37 is engaged with the rear surface of the chamber front plate 31 based on the displacement from the rear of the lock hole 39, The door 34 is locked in the closed state by the engaging force between the lock pins 37 and the chamber front plate 31. When the handle 35 is operated from the locked position to the unlocked position while the door 34 is locked, each lock pin 37 moves behind the lock hole 39. For this reason, each lock pin 37 passes through the front lock hole 39 and moves to the front of the chamber front plate 31 based on the pivoting operation of the door 34 toward the front side, and the door 34 is released from the closed state. It becomes a state.

  As shown in FIG. 3, a ferromagnetic choke member 40 is fixed to the rear surface of the door 34. The choke member 40 has a rectangular frame shape and is inserted into the thawing chamber 32 through the entrance / exit 33 with the door 34 closed. The choke member 40 electromagnetically shields the microwave when the door 34 is closed, and prevents the microwave from leaking from the joint between the chamber front plate 31 and the door 34 when the door 34 is closed. As shown in FIG. 3, a seal member 41 is fixed to the rear surface of the door 34 so as to be positioned on the outer peripheral portion of the choke member 40. The seal member 41 has a rectangular frame shape that circulates around the choke member 40 and contacts the chamber front plate 31 when the door 34 is closed. The door 34 is displaced rearward based on the locked state from the closed state. In the locked state of the door 34, the seal member 41 is elastically compressed between the chamber front plate 31 and the door 34. The seal member 41 seals between both the door 34 and the chamber front plate 31 in an airtight state based on the close contact with the elastic restoring force.

  As shown in FIG. 4, a spacer 42 is bonded to the lower surface of the chamber 30. The spacer 42 has a cylindrical shape whose upper and lower surfaces are open, and a horizontal annular base 43 is formed at the lower end of the spacer 42. A motor base 44 is fixed to the pedestal 43. The motor base 44 has a circular bottom plate 45 and an annular flange 46, and is fixed by screwing a plurality of screws 47 to the base 43 through the flange 46. The motor base 44 is removed by removing all the screws 47 from the base 43, and is reattached by screwing all the screws 47 into the base 43. The motor base 44 is detachable from the spacer 42. Yes. A table motor 48 is fixed to the bottom plate 45 of the motor base 44. The table motor 48 incorporates a speed reduction mechanism, and has an output shaft 49 extending in the vertical direction. The table motor 48 corresponds to a motor.

  A bearing bracket 50 is joined to the lower surface of the chamber 30 as shown in FIG. The bearing bracket 50 is housed in both the internal space of the spacer 42 and the internal space of the motor base 44, and a bearing 51 is mounted inside the bearing bracket 50. A support shaft 52 extending in the vertical direction is mounted on the inner peripheral surface of the bearing 51, and the support shaft 52 is connected to an output shaft 49 of the table motor 48 through a coupling 53 so as not to rotate. The upper end portion of the support shaft 52 protrudes into the thawing chamber 32, and a horizontal circular turntable 53 is detachably connected to the protruding portion of the support shaft 52. The turntable 53 corresponds to a rotating dish and is stored at the bottom of the thawing chamber 32. The turntable 53 is for placing frozen food, and rotates integrally with both the output shaft 49 and the support shaft 52 when the table motor 48 is driven.

  As shown in FIG. 4, an opening 54 is formed in the bottom plate 2 of the cabinet 1 below the motor base 44. The opening 54 has a circular shape with a larger diameter than the spacer 42, the motor base 44, and the table motor 48. The upper half of the table motor 48 is accommodated in the cabinet 1, and the table motor 48. The remaining lower half of the projection protrudes below the bottom plate 2 through the opening 54. A motor cover 55 is fixed to the bottom plate 2, and the lower half of the table motor 48 is accommodated in the motor cover 55. The motor cover 55 is in the form of a rectangular box having a left side plate, a right side plate, and a rear plate. Both the motor cover 55 and the table motor 48 are separated from the floor surface. Each of the left side plate and the right side plate of the motor cover 55 is formed with a rail 56 positioned at the lower end and extending in the front-rear direction. A flange 57 is formed on the motor cover 55. The flange 57 has a U shape extending over the left side plate, the right side plate, and the rear plate of the motor cover 55, and a plurality of screws 58 are inserted into the flange 57 from below. The motor cover 55 is fixed by screwing a plurality of screws 58 to the bottom plate 2, and is removed from the bottom plate 2 by removing the plurality of screws 58. A maintenance port 59 is formed in the motor cover 55. The maintenance port 59 is used for maintenance (maintenance / inspection / repair / replacement, etc.) of the table motor 48. The maintenance port 59 is formed in the space formed between the two rails 56 and the front surface of the motor cover 55. The total area of the space part.

  A slide cover 60 is attached to the motor cover 55. The slide cover 60 includes a horizontal lower plate portion 61 (see FIG. 4) mounted on both rails 56 of the motor cover 55 and a vertical front plate portion 62 (see FIG. 3) located at the front end portion of the lower plate portion 61. As shown in FIG. 3, a plurality of screws 63 are inserted into the front plate portion 62 from the front, and each of the plurality of screws 63 is screwed into the flange 9 of the bottom plate 2. Are combined. The slide cover 60 is locked in a closed state attached to the motor cover 55 by a fastening force of a plurality of screws 63. When the slide cover 60 is closed, the lower plate portion 61 has both rails 56 in the maintenance port 59. The space between them is closed, and the front plate 62 closes the space on the front surface of the motor cover 55 in the maintenance port 59. The slide cover 60 is opened by removing all of the plurality of screws 63 from the flange 9 of the bottom plate 2, and the maintenance cover 59 opens the slide cover 60. Is released based on

  As shown in FIG. 4, an L-shaped guide 64 is joined to the lower plate portion 61 of the slide cover 60 at each of the left end portion and the right end portion. The left rail 56 is inserted into the gap between the left guide 64 and the lower plate portion 61, and the right rail 56 is inserted into the gap between the right guide 64 and the lower plate portion 61. The slide cover 60 is linearly movable in the front-rear direction between the open state and the closed state based on the contact of the guides 64 and the lower plate portion 61 with the rail 56. The slide cover 60 corresponds to a cover.

  As shown in FIG. 1, an auxiliary cover 65 is fixed to both the angle 6 at the right front corner and the channel 7 at the center, and the upper half of the table motor 48 housed inside the cabinet 1 is The auxiliary cover 65 is hidden from view from the front. The auxiliary cover 65 is fixed by screwing screws 66 from the front through the auxiliary cover 65 to the angle 6 at the right front corner and the channel 7 at the center, and the cabinet can be removed by removing all the screws 66. Removed from 1. The auxiliary cover 65 hides a plurality of screws 63 that lock the slide cover 60 from the front, and the plurality of screws 63 are visible from the front based on the removal of the auxiliary cover 65. That is, any operation for attaching / detaching the slide cover 60 to / from the motor cover 55 can be performed with the auxiliary cover 65 removed.

  A pump base 67 is fixed to the bottom plate 2 of the cabinet 1 as shown in FIG. A vacuum pump 68 is fixed to the pump base 67, and both the pump base 67 and the vacuum pump 68 are housed inside the cabinet 1 so as to be located on the left side of the chamber 30. The vacuum pump 68 is connected to the thawing chamber 32 via an intake pipe and has a pump motor 69. The pump motor 69 corresponds to a driving source of the vacuum pump 68 and is housed in the cabinet 1 so as to be located on the left side of the chamber 30. The vacuum pump 68 corresponds to a decompressor. When the pump motor 69 is driven, the vacuum pump 68 decompresses the interior of the thawing chamber 32 based on the suction of air from the thawing chamber 32 through the intake pipe.

  A pressure sensor 70 is joined to the left side plate of the chamber 30. The pressure sensor 70 detects the pressure in the thawing chamber 32 and is housed in the cabinet 1 so as to be located on the left side of the chamber 30. A magnetron 72 is joined to the left side plate of the chamber 30 via a waveguide 71. Both of the waveguide 71 and the magnetron 72 are housed inside the cabinet 1 so as to be located on the left side of the chamber 30. When the magnetron 72 is driven, the inside of the thawing chamber 32 passes through the waveguide 71 from the magnetron 72. Is irradiated with microwaves. The magnetron 72 corresponds to a microwave generator.

  A discharge detection sensor 73 is joined to the left side plate of the chamber 30. The discharge detection sensor 73 is composed of an optical sensor that detects whether or not a discharge is generated in the thawing chamber 32, and is stored inside the cabinet 1 on the left side of the chamber 30. . A pressure regulating valve 74 is connected to the left side plate of the chamber 30 via a pressure regulating pipe, and each of the pressure regulating valve 74 and the pressure regulating pipe is housed in the cabinet 1 so as to be located on the left side of the chamber 30. The pressure regulating valve 74 switches between an open state and a closed state. When the pressure regulating valve 74 is closed, the inside of the thawing chamber 32 is completely shut off from the outside, and when the pressure regulating valve 74 is open, the thawing chamber. The inside of 32 is incompletely opened to the outside through the pressure adjusting tube. The pressure regulating valve 74 regulates the amount of fluid passing in accordance with the opening of the valve body. When the pressure regulating valve 74 is opened while the thawing chamber 32 is evacuated, the pressure in the thawing chamber 32 is reduced. The pressure is restored to the limit value corresponding to the opening of the pressure regulating valve 74.

  An air release valve 75 is connected to the left side plate of the chamber 30 through an exhaust pipe. The atmosphere release valve 75 switches between an open state and a closed state. When the atmosphere release valve 75 is closed, the inside of the thawing chamber 32 is completely shut off from the outside, and the atmosphere release valve 75 is opened. Then, the inside of the thawing chamber 32 is completely opened to the outside through the exhaust pipe. The air release valve 75 returns to the atmospheric pressure in the thawing chamber 32 based on being opened in a decompressed state in the thawing chamber 32, and each of the air release valve 75 and the exhaust pipe is a chamber in the cabinet 1. The left side 30 is housed.

  A front plate 76 corresponding to the front cover is fixed to the left side of the cabinet 1 as shown in FIG. The front plate 76 closes the remaining portion of the door 34 and the auxiliary cover 65 in the front surface of the cabinet 1, and includes an operation panel 77 and an air supply / exhaust cover 78. Each of the upper end of the operation panel 77 and the upper end of the air supply / exhaust cover 78 is formed with a horizontally long upper plate 79, and the lower end of the operation panel 77 and the lower end of the air supply / exhaust cover 78 are formed. Each has a horizontally long lower plate 80, and the operation panel 77 and the air supply / exhaust cover 78 are screwed into the lower plate 80 of the operation panel 77 from the front through the upper plate 79 of the air supply / exhaust cover 78. Thus, the operation panel 77 is fixed to the cabinet 1 by screwing a plurality of screws 81 to the frame 8 from the front through the upper plate 79 of the operation panel 77, and the supply / exhaust cover 78 is A plurality of screws 81 are screwed into the flange 9 of the bottom plate 2 through the lower plate 80 of the air supply / exhaust cover 78 from the front to be fixed to the cabinet 1. It is.

  That is, the operation panel 77 and the supply / exhaust cover 78 are simultaneously removed from the cabinet 1 by removing all the screws 81 of the upper plate 79 of the operation panel 77 and removing all the screws 81 of the lower plate 80 of the supply / exhaust cover 78. The operation panel 77 is detached from the cabinet 1 by removing all screws 81 of its upper plate 79 and all screws 81 of its lower plate 80, and the air supply / exhaust cover 78 is its own. By removing all the screws 81 of the upper plate 79 and all the screws 81 of its own lower plate 80, it is detached from the cabinet 1 alone.

  As shown in FIG. 5, an opening 82 is formed in the operation panel 77, and a cylindrical substrate holder 83 is joined to the inner peripheral surface of the opening 82. A printed wiring board 84 is accommodated in the board holder 83, and a plurality of switches 85 are mounted on the front surface of the printed wiring board 84. The plurality of switches 85 are operated by the user for inputting operation information such as start of decompression operation, stop of decompression operation, operation course of decompression operation, and the like. It protrudes forward to be operable. The display panel 86 is joined to the operation panel 77, and the opening 82 of the operation panel 77 is closed by the display panel 86. As shown in FIG. 1, a plurality of patterns are printed on the display panel 86, and on the front surface of the printed wiring board 84, as shown in FIG. LED 87 is mounted. Each of these LEDs 87 illuminates the front pattern, and the user is notified of the input result of the driving information based on the illumination state of the pattern.

  As shown in FIG. 3, a flat bar 88 is joined to both the angle 6 at the left front corner and the channel 7 at the center, and plate-like fan frames 89 are joined to the flat bar 88 in two rows on the left and right. Has been. As shown in FIG. 5, each fan frame 89 is formed with a cylindrical fan casing 90 extending in the front-rear direction, and a plurality of stays 91 are formed on the inner peripheral surface of each fan casing 90. . The plurality of stays 91 of each fan casing 90 are arranged radially around the central portion of the fan casing 90. The plurality of stays 91 of each fan casing 90 have a rotation motor extending in the front-rear direction. 92 is fixed. An axial flow type fan 93 is connected to the rotation shaft of each fan motor 92, and in the drive state of each fan motor 92, wind is sent from the back to the front based on the rotation of the fan 93.

  As shown in FIG. 1, the supply / exhaust cover 78 has an exhaust port 94 formed in front of both fans 93 and an intake port 95 positioned below the exhaust port 94. Each of the exhaust port 94 and the exhaust port 95 refers to an aggregate of a plurality of through holes 96 arranged in a plurality of rows and stages, and the air inside the cabinet 1 is aired when each fan motor 92 is driven. The air is discharged to the outside through the exhaust port 94, and the air outside the cabinet 1 is sucked into the cabinet 1 through the air inlet 95. Each of the exhaust port 94 and the exhaust port 95 corresponds to a vent, the exhaust port 94 corresponds to an exhaust vent, and the intake port 95 corresponds to an intake vent.

  As shown in FIG. 5, a filter holder 97 is joined to the inside of the air supply / exhaust cover 78 so as to be positioned at each of the upper end portion and the lower end portion, and the filter holder 97 at the upper end portion is provided behind the exhaust port 94. The filter 98 is held at the lower end, and the filter 98 is held at the lower end of the filter holder 97 at the rear of the intake port 95. Each of these filters 98 has a net-like shape. The filter 98 at the upper end prevents the insects and the like from entering the interior of the cabinet 1 through the exhaust port 94, and the filter 98 at the lower end passes through the intake port 95. Prevents insects from entering inside.

  As shown in FIG. 5, a rear waterproof plate 99 is housed inside the air supply / exhaust cover 78 so as to be located behind the two filters 98. The rear waterproof plate 99 corresponds to a waterproof plate, and each filter holder 97 is joined to the rear waterproof plate 99 by screwing a plurality of screws 100 to the filter holder 97 through the rear waterproof plate 99. . Thereafter, the waterproof plate 99 has an internal exhaust port 101 formed behind the exhaust port 94 and an internal intake port 102 formed behind the intake port 95. Each of the internal exhaust port 101 and the internal intake port 102 refers to an aggregate of a plurality of through holes 103 arranged in a plurality of rows and stages, and in the drive state of each fan motor 92, the inside of the cabinet 1 is referred to. Air is discharged from the internal exhaust port 101 to the outside of the cabinet 1 through the exhaust port 94, and air outside the cabinet 1 is sucked from the intake port 95 to the inside of the cabinet 1 through the internal intake port 102.

  As shown in FIG. 3, a partition plate 104 is joined to both the angle 6 at the left front corner and the channel 7 at the center. The partition plate 104 is disposed between the exhaust port 94 and the intake port 95 as shown in FIG. 5, and is positioned above both the vacuum pump 68 and the pump motor 69 as shown in FIG. is doing. The partition plate 104 has a horizontal plate shape, and when the fans 93 are driven, an exhaust flow flowing from the rear to the front inside the cabinet 1 and an intake flow flowing from the front to the rear inside the cabinet 1 are Prevent internal mixing with each other.

  As shown in FIG. 5, the air supply / exhaust cover 78 is formed with a plurality of flanges 105. Each of these scissors 105 is cut and raised when the through-hole 103 is pressed into the air supply / exhaust cover 78 and is disposed along the upper end surface of the through-hole 103. Each of these tubs 105 is inclined so as to protrude forward from the top to the bottom, and each of the tubs 105 of the internal exhaust port 101 has a water flow when cleaning the floor of the kitchen while flowing water from the hose H. Intrusion from the exhaust port 94 through the internal exhaust port 101 to the inside of the cabinet 1 is prevented, and each bottle 105 of the internal intake port 102 passes through the internal intake port 102 from the intake port 95 to the inside of the cabinet 1. Prevent intrusion.

  As shown in FIG. 5, two front waterproof plates 106 corresponding to waterproof plates are joined to the air supply / exhaust cover 78 in two upper and lower stages. Each of the front waterproof plates 106 has a U-shaped frame shape with both upper and lower surfaces opened, and the upper front waterproof plate 106 is interposed between the exhaust port 94 and the internal exhaust port 101. This upper front waterproof plate 106 blocks water that has entered the interior of the cabinet 1 from the exhaust port 94 when cleaning the floor of the kitchen while flowing water from the hose H. The wind discharged from both fans 93 passes through the upper and lower surfaces of the upper front waterproof board 106 and is blown to the exhaust port 94. The lower front waterproof board 106 is interposed between the air intake 95 and the internal air intake 102. The lower front waterproof board 106 blocks water that has entered the interior of the cabinet 1 from the air inlet 95 when the floor surface of the kitchen is cleaned while flowing water from the hose H. The wind sucked from the air intake 95 passes through the upper surface and the lower surface of the lower front waterproof board 106 and is blown to the internal air intake 102.

  As shown in FIG. 6, a control device 110 mainly composed of a microcomputer is housed in the cabinet 1. A control program is recorded in the ROM of the control device 110, and the control device 110 drives and controls the table motor 48, the pump motor 68, the magnetron 72, the pressure regulating valve 74, and the atmosphere release valve 75 based on the control program. The frozen food is thawed. This thawing operation is performed while the turntable 53 is continuously rotated based on the constant operation of the table motor 48. The outline of the thawing operation is as follows.

  When determining that the start of the thawing operation is instructed based on the output signals from the plurality of switches 85, the control device 110 closes each of the pressure regulating valve 74 and the air release valve 75 and starts the pump motor 68. In this state, the air in the thawing chamber 32 is discharged to the outside of the thawing chamber 32 through the vacuum pump 67, and the inside of the thawing chamber 32 is depressurized based on the atmospheric pressure.

  The control device 110 detects the pressure signal from the pressure sensor 70 in the operating state of the pump motor 68, and calculates the pressure reduction amount ΔP based on the detection result of the pressure signal. The pressure reduction amount ΔP refers to the amount of decrease in the pressure signal per unit time, and the control device 110 determines that the inside of the thawing chamber 32 has reached the pressure reduction equilibrium region when “ΔP ≦ reference value” is detected. In this case, the operation of the pump motor 68 is stopped, and the internal pressure of the thawing chamber 32 is restored from the decompression equilibrium region based on the opening of the pressure regulating valve 74 when the operation of the vacuum pump 67 is stopped.

  When the control device 110 opens the pressure regulating valve 74, it detects the internal pressure of the thawing chamber 32 in a restored pressure state, and compares the detection result of the internal pressure with the lower limit value P1. This lower limit value P1 corresponds to a limit value that does not cause vacuum discharge even when microwaves are irradiated into the thawing chamber 32, and the control device 110 determines that the detection result of the internal pressure exceeds the lower limit value P1. Sometimes microwaves are irradiated into the thawing chamber 32 based on starting the magnetron 72.

  When the magnetron 72 is started, the control device 110 detects the internal pressure of the thawing chamber 32 and compares the internal pressure detection result with the return pressure upper limit P2. Here, when it is determined that the detection result of the internal pressure has reached the return pressure upper limit P2, the pressure regulating valve 74 is closed, and the inside of the thawing chamber 32 is restarted based on restarting the pump motor 68 with the pressure regulating valve 74 closed. Depressurize again.

  When the pump motor 68 is restarted, the control device 110 detects the internal pressure of the thawing chamber 32 and compares the detection result of the internal pressure with a lower limit value P1 that does not cause vacuum discharge. Here, when it is detected that the detection result of the internal pressure has fallen to the lower limit value P1, the driving of the magnetron 72 is stopped, and the inside of the thawing chamber 32 is decompressed in the non-irradiated state of microwaves. When it is detected that the internal pressure of the thawing chamber 32 has reached the reduced pressure equilibrium region again, the pump motor 68 is stopped and the above series of operations is repeated. Then, since the saturated vapor pressure in the thawing chamber 32 increases based on the temperature rise of the frozen food, the reduced pressure ΔP becomes “0” due to the high internal pressure of the thawing chamber 32. The control device 110 compares the detection result of the internal pressure when the pressure reduction amount ΔP becomes “0” with the thawing end value, and opens the atmosphere release valve 75 when detecting that the detection result of the internal pressure has increased to the thawing end value. And finish the thawing operation.

According to the said Example 1, there exists the following effect.
Since both the vacuum pump 68 and the magnetron 72 are stored together in the left side of the chamber 30 in the same horizontally long box-shaped cabinet 1 as the chamber 30, the chamber 30, the vacuum pump 68, and the magnetron 72 are arranged in a line in the left-right direction. Compared with the case where they are arranged side by side, the width dimension in the left-right direction of the cabinet 1 becomes smaller. Moreover, since the sink 15 is joined to the upper end of the cabinet 1, the space for the sink 15 that is normally secured in the kitchen can be used as a space for installing the cabinet 1 in the kitchen. For this reason, since a vertically long dedicated space is not required as a space for installing the cabinet 1 in the kitchen, the vacuum microwave defroster can be easily installed even in a narrow kitchen.

  The table motor 48 was joined to the chamber 30 such that the lower half of the table motor 48 protruded downward through the bottom plate 2 of the cabinet 1. For this reason, since the height dimension of the cabinet 1 becomes small compared with the case where all the table motor 48 is accommodated in the inside of the cabinet 1, a vacuum microwave defroster is installed especially in small shops such as small supermarkets and restaurants. It becomes easy to do.

  The discharge port 18 of the sink 15 is disposed on the same left side as both the vacuum pump 68 and the magnetron 72, and the front plate 76 having the exhaust port 94 and the intake port 95 is disposed in front of the discharge port 18, so that the cook can Cold air is sucked into the interior of the cabinet 1 from the passage in front of the cabinet 1 through the intake port 95, and hot air is discharged from the interior of the cabinet 1 into the passage in front of the cabinet 1 through the exhaust port 94. For this reason, there is no need to secure a gap between the left side plate 3 of the cabinet 1 and the adjacent kitchen device, and there is no need to secure a gap between the right side plate 4 of the cabinet 1 and the adjacent kitchen device. The width dimension in the left-right direction of the installation space for the vacuum microwave defroster is further reduced.

  A partition plate 104 that partitions the rear region of the exhaust port 94 and the rear region of the intake port 95 is provided inside the cabinet 1. For this reason, the hot air discharged from the inside of the cabinet 1 to the outside of the cabinet 1 through the exhaust port 94 and the cool air sucked from the outside of the cabinet 1 to the inside of the cabinet 1 through the intake port 95 are mixed with each other inside the cabinet 1. Therefore, the inside of the cabinet 1 is efficiently cooled. Moreover, since the partition plate 104 is disposed above the vacuum pump 68 and the pump motor 69, water has entered the cabinet 1 from the upper exhaust port 94 when cleaning the floor of the kitchen while flowing water from the hose H. Even in this case, water is not applied to each of the vacuum pump 68 and the pump motor 69.

  A motor cover 55 surrounding the protruding portion of the table motor 48 is joined to the cabinet 1, and a maintenance port 59 and a slide cover 60 are provided in the motor cover 55. Therefore, the maintenance port 59 can be opened by sliding the slide cover 60, and the maintenance of the table motor 48 can be performed from the outside through the maintenance port 59. In addition, since the maintenance port 59 can be closed when the table motor 48 is not maintained, water can flow through the maintenance port 59 and the water of the table motor 48 when the floor surface of the kitchen is cleaned while flowing water from the hose H. It will not be applied to the protruding part.

  A front waterproof plate 106 is provided behind the exhaust port 94. For this reason, even when water intrudes into the cabinet 1 from the exhaust port 94 when cleaning the floor surface of the kitchen while flowing water from the hose H, the water is blocked based on the water hitting the front waterproof plate 106. As a result, the fan motor 92 and the fan 93 behind the exhaust port 94 are prevented from being splashed with water. In addition, a front waterproof plate 106 is provided behind the intake port 95. For this reason, even when water enters the cabinet 1 from the air inlet 95 when cleaning the floor of the kitchen while flowing water from the hose H, the water is blocked based on the water hitting the front waterproof plate 106. As a result, it is possible to prevent water from being applied to each of the vacuum pump 68 and the pump motor 69 behind the intake port 95. This effect is the same for the rear waterproof plate 99.

  A fan 93 is provided behind the exhaust port 94. For this reason, since the air inside the cabinet 1 is discharged to the outside of the cabinet 1 through the exhaust port 94 through a straight path, the flow rate of the exhaust flow discharged from the inside of the cabinet 1 to the outside increases. Therefore, the flow rate of the intake air flow that is sucked into the cabinet 1 from the outside of the cabinet 1 through the intake port 95 is also increased, so that the inside of the cabinet 1 is efficiently cooled.

  Since the drip-proof cover 22 that covers the lower surface of the sink 15 from below is provided, the condensed water can be received by the cover 24 of the drip-proof cover 22 when the condensed water falls from the lower surface of the sink 15. In addition, the drip-proof cover 22 is provided with a guard 25 surrounding the drain port 18, and the upper surface of the cover 24 of the drip-proof cover 22 is inclined downward toward the guard 25. For this reason, the condensed water that has fallen on the cover 24 flows toward the guard 25 along the upper surface of the cover 24 and is discharged downward along the inner peripheral surface of the guard 25. Condensed water will not be applied to the electrical components placed outside. The electrical components refer to the table motor 48, the pump motor 68, the pressure sensor 70, the magnetron 72, the discharge detection sensor 73, the pressure regulating valve 74, the atmosphere release valve 75, the switch 85, and the LED 87, respectively.

  In the first embodiment, the guard 25 of the drip-proof cover 22 may be eliminated. In this case, the condensed water flowing to the drain port 18 side through the bottom surface of the sink 15 is received by the partition plate 104 when it falls from the bottom surface of the sink 15 before reaching the drain port 18, so that the vacuum pump 68 and the pump motor 69 are received. Condensation water is prevented from splashing on the surface.

In the first embodiment, the maintenance cover 59 of the motor cover 55 may be opened / closed by attaching the cover to the motor cover 55 in a pivotable manner and rotating the cover.
In the first embodiment, all of the table motor 48 may be protruded below the bottom plate 2 through the bottom plate 2 of the cabinet 1.

  In the first embodiment, the chamber 30 may be stored on the left side in the cabinet 1, and the drain port 18, the vacuum pump 68, and the magnetron 72 may be stored on the right side in the cabinet 1.

  In the first embodiment, the intake port 95 may be provided at the upper end of the supply / exhaust cover 78, and the exhaust port 94 may be provided at the lower end of the supply / exhaust cover 78.

The figure which shows Example 1 (the perspective view which shows the external appearance of a vacuum microwave defroster from the front) Perspective view showing the appearance of the vacuum microwave thawing machine from the rear The perspective view which shows the internal structure of a vacuum microwave defroster from the front Sectional view showing the internal structure of the vacuum microwave thawing machine from the front Sectional view showing the internal structure of the vacuum microwave thawing machine from the side Block diagram showing electrical configuration

Explanation of symbols

  1 is a cabinet, 10 is an adjuster leg (leg), 15 is a sink (water tank), 16 is a faucet, 18 is a drain, 22 is a drip-proof cover, 25 is a guard (droplet discharge part), 30 is a chamber (thaw container) ), 32 is a thawing chamber, 33 is an entrance / exit (inlet), 34 is a door, 48 is a table motor (motor), 53 is a turntable (rotary plate), 55 is a motor cover, 59 is a maintenance port, and 60 is a slide cover. (Cover), 68 is a vacuum pump (decompressor), 72 is a magnetron (microwave generator), 76 is a front plate (front cover), 93 is a fan, 94 is an exhaust port (vent), 95 is an intake port ( Ventilation holes), 99 is a rear waterproof plate (waterproof plate), 104 is a partition plate, and 106 is a front waterproof plate (waterproof plate).

Claims (8)

A thawing chamber having a thawing chamber for storing frozen products, and a charging port provided in the front for charging the frozen products into the thawing chamber;
It is movable between an open state in which the inlet of the thawing chamber is opened and a closed state in which the inlet of the thawing chamber is closed, and a door provided at the front end of the thawing container,
The thawing container is stored so that the door can be operated from the front, and the cabinet has a horizontally long box shape in which the width dimension in the left-right direction is larger than the height dimension in the up-down direction,
Receiving water discharged from the faucet, and a water tank provided at the upper end of the cabinet;
A decompressor that decompresses the inside of the thawing chamber, and is housed inside the cabinet and located on either the left side or the right side of the thawing container;
A microwave microwave that irradiates the inside of the thawing chamber with a microwave, and includes a microwave generator housed in the same side as the decompressor inside the cabinet. Wave decompressor. A rotating dish that is stored in the thawing chamber and on which the frozen material is placed;
A motor that rotates the rotating dish, the motor being joined to the thawing container so that a part or the whole protrudes downward from the bottom plate of the cabinet through the bottom plate of the cabinet;
2. The vacuum microwave defroster according to claim 1, further comprising: a plurality of legs provided on the cabinet and installed on the floor so that the motor is separated from the floor. The water tank is provided on the same side as both the decompressor and the microwave generator, and a drain outlet for discharging water from the inside of the water tank,
The vacuum microwave defroster according to any one of claims 1 to 2, further comprising: a front cover provided in the cabinet in front of the drain and having a vent through which air flows. . The front cover has an exhaust vent through which air flows from the inside of the cabinet toward the outside of the cabinet, and an intake vent through which air flows from the outside of the cabinet toward the inside of the cabinet. Provided at intervals in the vertical direction,
Inside the cabinet, a partition plate is provided to partition a rear region of the exhaust vent and a rear region of the intake vent from each other,
The vacuum microwave defroster according to claim 3, wherein the decompressor is disposed below the partition plate. A motor cover that is provided in the cabinet and surrounds a portion of the motor that projects downward from a bottom plate of the cabinet;
A maintenance port provided in the motor cover and capable of maintaining the motor from the outside of the motor cover;
The vacuum microwave defroster according to any one of claims 2 to 4, further comprising a cover provided on the motor cover and configured to open and close the maintenance port.   A waterproof plate is provided in the interior of the cabinet, located behind the vent, and receives water when water enters the cabinet through the vent from the outside of the cabinet. The vacuum microwave defroster according to any one of claims 3 to 4.   The vacuum microwave defroster according to claim 6, further comprising a fan that is provided inside the cabinet and located behind the waterproof plate and allows air to flow through the vent. A drip-proof cover that covers the lower surface of the aquarium from below, and that receives drops falling from the lower surface of the aquarium;
Provided with the drip-proof cover, and a cylindrical drop discharge portion protruding downward from the drip-proof cover,
The vacuum microwave defroster according to any one of claims 2 to 7, wherein an upper surface of the drip-proof cover is inclined downward toward the droplet discharge portion.

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