JP2019095163A - Dehumidifier - Google Patents

Abstract

To provide a dehumidifier capable of preventing a humidity sensor from disturbing air blowing to an evaporator.SOLUTION: A suction port 6 and a blowout port 12 are provided on a frame body 1, and an evaporator 8, a condenser 9 and an air blowing fan 10 are provided within the frame body. An air blowing route 16 is formed by communicating the suction port, the evaporator, the condenser, the air blowing fan and the blowout port with each other. A fan case 13 of the air blowing fan is provided. The fan case includes a fan guide section 102 and a heat exchange fixation section. A sensor case mounting section 111 is provided on a fixation section upper surface 104 of the heat exchange fixation section. A humidity sensor case 112 accommodating a humidity sensor 114 is fixed to the sensor case mounting section. The humidity sensor case includes side plates surrounding a lower direction and front/rear and right/left directions of the humidity sensor. The side plates include a windward side air blowing port formed on the upstream side of the air blowing route opposing to the suction port and leeward air blowing ports formed on the downstream side of the air blowing route opposing to the evaporator or the condenser. The humidity sensor case is provided in a space between the fixation section upper surface and the evaporator or the condenser.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a small dehumidifier used in general homes.

  Conventionally, in this type of apparatus, a suction port on the side of the frame is provided with a blowout port on the top, and an evaporator, a condenser and a blower fan are provided inside, and the suction port and the evaporator, condenser, and blower fan The air outlet is connected to form an air flow path, and a humidity sensor is provided inside the suction port to detect the humidity of the room air to control the operation of the dehumidifier, thereby adjusting the room humidity and washing. The drying operation of the object was being performed. (For example, refer to patent document 1)

Patent No. 6182083 gazette

The humidity sensor used in such a conventional example incorporates a device for detecting humidity, a connector for connecting a lead wire, etc. to a printed circuit board (about 20 mm long and about 30 mm wide) and has a thickness of about 8 mm. Not only the influence of radiant heat with the evaporator needs to be taken into consideration, it is also necessary to prevent direct contact with the suction port and the air filter, and it is considerably large to be incorporated between the suction port and the air filter It requires space, which hinders the dehumidifier to be compact.
Further, the humidity sensor obstructs the air flow to the evaporator by closing the inside of the suction port by about 20 mm in length and about 30 mm in width.

  In order to solve the above-mentioned drawbacks by paying attention to this point, the present invention particularly has the configuration including a suction port and a blowout port in a frame, and an evaporator, a condenser and a blower fan inside the frame, The suction port is communicated with the evaporator, the condenser, the blower fan and the blower outlet to form a blower path, and has a fan case for the blower fan, and the fan case has a fan guide portion and a heat exchange fixing portion. The heat exchange fixing portion has a sensor case mounting portion on the upper surface of the fixing portion, and a humidity sensor case for housing the humidity sensor is fixed to the sensor case mounting portion, and the humidity sensor case is downward and forward and backward of the humidity sensor It has a side plate which encloses the left-right direction, and the side plate winds up a windward air flow port on the upstream side of the air flow path opposite to the suction port and on the downstream side of the air flow path opposite to the evaporator or the condenser. Form a side air outlet, the humidity sensor Sakesu is the one provided in the space between the evaporator and the condenser and the fixed portion upper surface.

According to the present invention, by providing the humidity sensor case for housing the humidity sensor in the space between the upper surface of the fixed portion and the evaporator or the condenser, the humidity sensor may block air flow to the evaporator. It can prevent and make a dehumidifier compact.
In addition, the lower surface of the humidity sensor case facing the evaporator is closed, and a windward air outlet is formed on the upstream side of the air flow path facing the suction port, and the windward side is on the side facing the condenser downstream of the air flow path. Since the air vents are opened, the heat influence from the evaporator and the condenser can be extremely reduced.

BRIEF DESCRIPTION OF THE DRAWINGS The perspective view of this invention one Example. Sectional drawing of the same blowing direction. The expanded sectional view of the principal part. The expanded sectional view of the principal part perpendicular to the blowing direction. The disassembled perspective view showing attachment to the humidity sensor and humidity sensor case. The perspective view of the state where the same humidity sensor was built into the humidity sensor case. The disassembled perspective view showing attachment of a humidity sensor case, a drain pan, and a heat exchanger to the fan case.

Next, a dehumidifier according to the present invention will be described with reference to an embodiment shown in the drawings.
1 is a main body of the dehumidifier, and an outer shell of the main body is formed by providing a right case 3 on the right side, a left case 4 on the left side, and a front case 5 covering the front on the bottom plate 2.
A suction port 6 is formed at the upper portion of the right case 3 and is provided with an opening provided with a large number of horizontally long slits to suck air in the room.

  Inside the suction port 6, a filter 7 is provided which is made of resin mesh or non-woven fabric and removes dust mixed in the intake air. Inside the filter 7, an evaporator 8 is provided. The evaporator 8 penetrates the copper tubes 8B through the aluminum fins 8A and passes the air between the aluminum fins 8A and the copper tube 8B. It is a finned tube type heat exchanger in which heat exchange is performed with the refrigerant flowing into the inside, and the aluminum fin 8A has a thickness of about 0.1 mm so that it bends immediately when an external force is applied to the end of the fin 8A. In this case, the performance of heat exchange is reduced by inhibiting the passage of air. When the suction air passes between the cooled fins 8A at the same time as the cold refrigerant passes through the copper pipe 8B, the air is cooled, and the moisture in the air condenses on the surface of the evaporator 8 to perform dehumidification Drain water is generated.

Further inside and downstream of the evaporator 8, a fin-tube type heat exchanger similar to the evaporator 8 is provided and a high temperature condenser 9 is provided, and the air cooled and dehumidified in the evaporator 8 is heated.
Further downstream of the condenser 9, a sirocco fan type blower fan 10 and a fan motor 11 for driving the fan 10 are provided.

  A fan case 13 is provided inside the left case 4 and between the fan motor 11 and surrounding the blower fan 10 to guide the air flow to the air outlet 12 side. (Not shown) is provided to blow air toward the outlet 12 in the upward direction.

  The blowout port 12 is integrally formed by the opening of the upper surface of the left case 4, and a horizontal louver 14 for adjusting the direction of the blowout air is provided at the upper part of the blowout port 12. It is freely movable and changes the wind direction (about 90 degrees) from the left side horizontal direction to the direct upward direction by rotation, and is automatically stored at the horizontal direction blowing position when the dehumidifier is stopped.

  The air from the air blowing fan 10 is blown toward the horizontal louver 14, and in a state where the horizontal louver 14 is open, the drying of the laundry positioned above the dehumidifier is efficient by blowing the drying air in the upward direction. It is often done. Further, when the horizontal louver 16 is closed (horizontal blowout position), the dry air is blown horizontally in the left direction, which is suitable for partial dehumidification operation such as dehumidification or push-in of the entire room.

  The air suction path 16 is formed by communicating the suction port 6 with the evaporator 8, the condenser 9, the air blowing fan 10, and the air outlet 12. A handle 17 for transporting the dehumidifier is integrally formed on the upper portions of the right case 3 and the left case 4.

  Below the evaporator 8, a drain pan 18 for receiving drain water condensed on the surface of the evaporator 8 is provided. A drain 19 has one end connected to the bottom surface of the drain pan 18 and the other end located at the upper portion of the drain tank 20. Condensed water collected by the drain pan 18 is introduced to the drain tank 20. The drainage tank 20 slides from the right direction between the lower portion of the right case 3 and the bottom plate 2 to be removed, and drain water generated by the operation of the dehumidifier is stored, and it is removed from the dehumidifier as needed. Work is done to dump the accumulated drain water.

  Reference numeral 21 denotes a substantially rectangular tank case made of a transparent plastic material, which has an opening 22 at the upper side, a drainage portion 23 at the rear left corner facing the opening 22 and a fullness detection portion at the front left corner 24 is provided. Further, the right side surface 25 of the tank case 21 covers the opening provided in the right case 3 to constitute a part of the outer surface of the dehumidifier main body 1. The lower part of the right side face 25 is provided with a handle 26 for drawing out the drainage tank 20 by denting horizontally and a tank used at the time of drainage between the drainage part 23 at the upper left of the tank case 21 and the fullness detection part 24 A handle 27 is provided. Further, a lid 28 is attached to the opening 22.

  An operation unit 29 is provided on the upper surface of the front case 5 and includes switches 30 such as operation switches and timer switches and a display unit 31 such as an operation lamp, and is a back surface of the operation unit 29. And a lamp is fixed, and an operation unit base (not shown) having a circuit configuration is provided.

  The fan case 13 has a partition wall portion 101 forming a tank chamber 100 for housing the drainage tank 20, a fan guide portion 102 of the blower fan 10, and heat for fixing the upper portions of the evaporator 8 and the condenser 9. The cross-fixing portion 103 is integrally formed of a resin material such as polypropylene. The heat exchange fixing portion 103 is formed by the fixing portion upper surface 104 and the fixing portion left and right 105, and the thickness of the resin is partially reduced between the fixing portion left and right 105 on the left and right sides of the fixing portion upper surface 104 , And two first thin portions 106 that can be easily bent. Further, between the fixed portion upper surface 104 and the fan guide portion 102, like the first thin portion 106, the second thin portion 107 which is partially thin and foldable is made two first thin portions. It is provided at an angle orthogonal to the first thin portion 106 between the portions 106 so that the fixing portion upper surface 104 and the fan guide portion 102 can be bent. As a result, the upper surface 104 and the left and right portions 105 of the fixed portion are bent in a U-shape at the first thin portion 106, and the upper surface 105 of the fixed portion and the fan guide portion 102 are formed at the second thin portion 107. When it is bent in a letter shape, the evaporator 8 and the condenser 9 are sandwiched and fixed between the lower fixing portion 18A protruding from the drain plate 18 and the left and right fixing portions 105 of the heat exchange fixing portion 103.

  At the end of the fixed portion left and right 105, a concave portion 108 is provided in contact with the evaporator 8 and the copper tube 8B of the condenser 9, and the fin 8A of the evaporator 8 and the condenser 9 is in the vertical direction. Since they are arranged in the horizontal direction, when fixing the heat exchanger in the assembling operation, when fixing by pressing the copper pipe 8B from the top by the concave portion 108 of the fixing portion left and right 105, the fixing portion left and right 105 is horizontal Since the fin 8A is approached from the direction, and the adjustment of the bending angle of the fixed portion left and right 105 can be easily changed according to the position and the state of the heat exchanger (evaporator 8 or condenser 9) It can reduce the possibility of crushing and breakage.

  In the vicinity of the second thin portion 107 of the fan guide portion 102, a pair of locking projections 109 are erected on the bent side of the fixed portion upper surface 104, and on the outside of the fixed portion left and right 105 facing the locking projections 109. By providing the locking claw 110 as a locking means for locking, the bent shape of the first thin portion 106 and the second thin portion 107 is temporarily held to improve the workability.

  Reference numeral 111 denotes a sensor case mounting portion projecting downward from the upper surface 104 of the fixing portion to the side of the evaporator 8; a mounting hole 113 for mounting the humidity sensor case 112 on the bottom and a closing plate portion closing the upper portion of the humidity sensor 114 113A is formed.

  The humidity sensor 114 is a small printed circuit board 115 measuring approximately 20 mm long × 30 mm wide × 1.6 mm thick and soldered with an electronic component 116 such as an element for detecting humidity or an electrical resistance or a connector for connecting a lead wire. The thickness is also about 8 mm, and in order to accurately detect the humidity, it is necessary to also consider the effects of ventilation and radiation heat with the evaporator 8. Further, by closing the upper portion of the humidity sensor 114 with the closing plate portion 113A, humidity can be accurately detected by flowing air from the suction port 6 around the humidity sensor 114.

  The humidity sensor case 112 is open at the upper side and is surrounded by the bottom plate in the lower part and the side plate 117 in the front and rear, right and left direction, and fixing claws 118 are formed on upper ends of the side plate 117. Attach. In addition, a windward air blowing port 120 is formed on the upstream side of the air blowing path 16 opposite to the suction port 6 of the side plate 117 and is composed of a large number of slit-like openings 119 of about 2 mm width and facing the condenser 9. A locking claw 118A for locking the upper portion of the vertically long printed circuit board 115 is formed on the downstream side of the air blowing path 16, and a longitudinally long downwind side air vent 121 is formed on both sides of the locking claw 118A. In addition, a large number of ribs 122 for inserting and fixing the humidity sensor 114 from above at substantially the center of the humidity sensor case 112 are provided on the inner side from the side plate 117. Further, the humidity sensor case 112 is located on the downstream side of the suction port 6 in the air blowing path 16 and between the upper surface 104 of the fixed portion and the evaporator 8, and on the windward side of the condenser 9 above the evaporator 8. The space 123 is provided. By this, the dehumidifier can be made more compact. Further, the thermal influence from the evaporator 8 and the condenser 9 can be extremely reduced.

  By changing the size and the number of the slits 119 at the opening of the windward air outlet 120 and the windward air outlet 121, the distance from the evaporator 8 and the condenser 9 and the amount of air flowing through the air passage 16 can be easily changed. It can be changed or adjusted.

  Reference numeral 124 denotes a blow hole provided substantially at the center of the fan guide portion 102, and at the center of the blow hole 124, a motor attachment portion 125 formed of a rib for attaching the fan motor 11 is provided. A stepped portion 126 is formed on the upper surface of the partition wall portion 101, and the partition wall portion 101 and the fan guide portion 102 are integrally formed, and a drain plate lock is provided protruding from the fan guide portion 102 in the vicinity of the stepped portion 126. A portion 127 is provided, and the stepped portion 126 and the drain plate locking portion 127 form a drain plate mounting portion 128. Then, the drain plate claw 18B provided at the end portion of the drain plate 18 locks to the drain plate locking portion 127, and the thin plate-like drain plate 18 slides and fits in, thereby making the assembly work easier. can do.

  To explain the outline of the assembly procedure in the work line, a compressor (not shown) is placed on the bottom plate 2 at a predetermined position via cushion rubber or the like and bolted. Next, the lower part of the partition wall portion 101 of the fan case 13 is inserted into the approximate center of the bottom plate 2 and set. Next, the humidity sensor case 112, in which the humidity sensor 114 is incorporated in advance, is fixed to the sensor case mounting portion 111. Lock and lock 118. (Dashed line arrow a in FIG. 7) Next, the drain pan 18 is slid and fitted into the drain pan mounting portion 128 of the fan case 13. (Dashed line arrow b) Next, the lower fixing portion 18A provided in the drain plate 18 is placed with the evaporator 8, the condenser 9, the capillary tube, and other pipes connected in advance by brazing. (Dashed line arrow c) Next, a pipe connected to the compressor and other parts is brazed to the evaporator 8 and the condenser 9. Next, in order to fix the evaporator 8 and the upper part of the condenser 9, the first thin portion 106 and the second thin portion 107 of the heat exchange fixing portion 103 are bent in two steps and their respective locks, (broken line arrow d) Thus, it is possible to fix them extremely easily and damage to the fins 8A on the top of the evaporator 8 and the condenser 9 is reduced. Next, the right case 3 and the left case 4 which are outer frames, and the front case 5 are attached by engagement or screwing, and finally the drainage tank 20 is set from the right side, thereby completing the assembly of the dehumidifier.

As described above, by providing the humidity sensor case 112 housing the humidity sensor 114 in the space between the upper surface 104 of the fixed portion and the evaporator 8 or the condenser 9, the humidity sensor 114 receives the humidity sensor 114. The dehumidifier can be made compact by preventing it from blocking the air flow.
Further, the lower surface of the humidity sensor case 112 facing the evaporator 8 is closed, and the windward air blowing port 120 is formed on the upstream side of the air blowing path 16 facing the suction port 6. Since the downwind side air outlet is opened on the side opposite to, the thermal influence from the evaporator 8 and the condenser 9 can be extremely reduced.
Further, by attaching the humidity sensor case 112 before bending the upper surface 104 of the fixing portion at the time of assembling operation, the humidity sensor 114 can be easily assembled, and the assembling operation can be extremely simplified.

  In the present embodiment, the upwind side air outlet 120 and the downwind side air outlet 121 are described as being formed into a plurality of slits for easy understanding, but it may be a grid-like opening or the shape of the humidity sensor 114. It is possible to make it further compact by changing accordingly.

  In addition, the other configurations used in the present embodiment are presented as an example, and it is not intended to limit the scope of the invention, and can be implemented in other various forms. Various omissions, replacements and changes can be made without departing from the scope of the present invention. These embodiments and modifications thereof are included in the scope and the gist of the invention, and are included in the invention described in the claims and the equivalent scope thereof.

DESCRIPTION OF SYMBOLS 8 Evaporator 9 Condenser 13 Fan case 102 Fan guide part 103 Heat exchange fixing part 104 Fixing part upper surface 111 Sensor case attaching part 112 Humidity sensor case 113 Mounting hole 113A Closed plate part 114 Humidity sensor 118 Fixing claw 119 Slit 120 Upwind blowing mouth

Claims (3)

The frame has a suction port and a blowout port,
The frame has an evaporator, a condenser and a blower fan inside the frame,
The suction port is communicated with the evaporator, the condenser, the blower fan, and the blower outlet to form a blower path, and the fan case has a fan case.
The fan case has a fan guide portion and a heat exchange fixing portion,
The heat exchange fixing portion includes a sensor case mounting portion on the upper surface of the fixing portion,
Fix the humidity sensor case containing the humidity sensor in the sensor case mounting part,
The humidity sensor case has a side plate surrounding the lower direction and the front, rear, left and right direction of the humidity sensor,
The side plate forms an upwind side air outlet on the upstream side of the air flow path facing the suction port, and a downwind side air outlet on the downstream side of the air flow path opposite to the evaporator or the condenser.
A dehumidifier characterized in that the humidity sensor case is provided in a space between the upper surface of the fixed portion and the evaporator or the condenser.   The humidity sensor case is provided with a fixing claw, the sensor case mounting portion is provided with a mounting hole and a closing plate portion, and the fixing claw is engaged with the mounting hole, whereby the upper portion of the humidity sensor is the closing plate. The dehumidifier according to claim 1, characterized in that it is closed by a part.   The windward air outlet or the windward air outlet of the humidity sensor case is configured by a slit-like opening formed in the side plate facing the humidity sensor. Dehumidifier.

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