KR20140080527A

KR20140080527A - Air conditioning device

Info

Publication number: KR20140080527A
Application number: KR1020147012122A
Authority: KR
Inventors: 다다시 호리구치; 류지 이케베; 료타 마츠무라
Original assignee: 이나바 덴키 산교 가부시키가이샤
Priority date: 2011-10-19
Filing date: 2012-10-16
Publication date: 2014-06-30
Also published as: WO2013058243A1; CN103930732A; TW201346191A; JP5617044B2; JPWO2013058243A1

Abstract

Provides a quiet air conditioner. There is provided a flat heat transfer portion 2 having a heat transfer pipe 4 through which the fruit R passes and the flat heat transfer portion 2 is arranged in a vertical posture and in a state of being opposed to the area to be air- The condensed water generated in the flat heat transfer portion 2 is discharged during the cooling operation in which the heat transfer tube 4 is cooled by the heat R and the heat is absorbed by the flat heat transfer portion 2, An air conditioner in which a drain pan (18) for receiving condensation water is provided, wherein an appliance body lower case (1B) is disposed below the flat heat transfer portion (2) And placed inside the device body lower case 1B.

Description

TECHNICAL FIELD [0001] The present invention relates to an air conditioning apparatus,

The present invention relates to an air conditioner used for cooling and heating a living room.

Specifically, a flat heat transfer portion having a heat transfer tube through which a heat medium passes is disposed, and the flat heat transfer portion is arranged in a vertical posture. In addition, (Condensation water) generated in the flat heat transfer portion flows down during cooling operation in which the heat transfer tube is cooled by the above-mentioned heat to absorb the flat heat transfer portion, and the drain The present invention relates to an air conditioner having a fan.

Conventionally, as this type of air conditioner, Patent Document 1 discloses an air conditioner having the following configuration.

A plurality of longitudinally heated heat transfer tubes through which the fruits pass are arranged in the left and right direction to constitute a flat heat transfer portion and the flat heat transfer portions in the vertical posture are exposed in the front space and the rear space in a face to face relationship with each other.

A plurality of fin portions extending in the longitudinal direction over the entire length of each of the heat transfer tubes are radially arranged when viewed from the plane on the front and rear sides of the heat transfer tubes.

An upper supporting frame body is provided at an upper end portion of the flat heat transfer portion formed by the rows of heat transfer tubes and a lower supporting frame body is provided at a lower end portion of the flat heat transfer portion. The upper and lower ends of the plurality of heat transfer tubes in the vertical posture are supported by these supporting frame bodies.

The upper support frame and the lower support frame are connected to each other by a pair of left and right side support frame members and surround the periphery of the flat heat transfer portion in the vertical posture by these four support frame members.

The number of dew condensations (specifically, the number of dew condensations generated on the surface of the heat transfer pipe or the surface of the fin portion) generated in the flat heat transfer portion during the cooling operation for cooling the heat transfer pipe by heat and absorbing the flat heat transfer portion, A drain pan for receiving the water was disposed below the lower support frame body.

Patent Document 1: Japanese Utility Model Registration No. 3170417

In the above-described air conditioning apparatus disclosed in Patent Document 1, since the drain pan is exposed, the appearance of the apparatus becomes poor, and the dropping sound (dropping sound) when the dew condensation water is received by the drain pan is directly There was a problem that it felt annoying as the dropping sound continued. There has also been a problem that dust easily penetrates into the interior of the drain pan in the area to be air-conditioned.

Further, when the apparatus is installed close to the wall, cooling operation for cooling the heat transfer tube by heat and endothermic action of the flat heat transfer portion, or heating operation for heating the heat transfer tube by heat to heat the flat heat transfer portion, There is a problem that condensation or discoloration is likely to occur on the surface of the seal wall due to strong cooling or heating of the adjacent seal wall.

The main object of the present invention is to provide an excellent air conditioner capable of solving the above-mentioned problems.

According to a first aspect of the present invention,

A flat heat transfer portion having a heat transfer tube through which the fruit passes is provided,

The flat heat transfer portion is arranged in a vertical posture and exposed in a surface-facing state with respect to the air conditioning target region,

And a drain pan for receiving the condensed water generated by the flat heat transfer portion during cooling operation for cooling the heat transfer tube by the heat and absorbing the flat heat transfer portion,

An apparatus body lower case is disposed below the flat heat transfer portion,

And the entire drain pan is disposed inside the lower case of the apparatus body.

According to the air conditioner having this structure, in the cooling operation in which the heat transfer pipe is basically cooled by the heat to absorb the flattened heat transfer portion, the cold air naturally drops along the flat heat transfer portion in the vertical posture by the air cooling in the flat heat transfer portion.

The descending cold air smoothly flows out from the lower portion of the flat heat transfer portion to the air conditioning target area opposed to the flat heat transfer portion.

In addition, along with the natural drop of the cool air and the outflow of the air, the air is drawn into the upper portion of the flat heat transfer portion from the opposing air conditioning target area, and the inflow air is naturally lowered by cooling in the flat heat transfer portion.

That is, the air-conditioning target area can be efficiently, softly, and satisfactorily cooled by the outflow cool air in a state in which a large air convection at a very low speed is caused in the air-

On the other hand, in the case of heating operation in which the heat transfer tube is heated by the heat to enable the flat heat transfer portion to radiate heat, in the heating operation, the air heated by the flat heat transfer portion causes natural warming along the flat heat transfer portion in the vertical posture do.

The raised warm air flows out smoothly from the upper portion of the flat heat transfer portion to the air conditioning object region.

And smoothly flows out with a change in the direction from the bottom to the horizontal direction.

Further, with the natural upward movement and the outflow of the warm air, the air is drawn in and introduced into the lower portion of the flat heat transfer portion from the opposed air conditioning target area, and the inflow air naturally rises by heating in the flat heat transfer portion.

In other words, in the state where the air convection outflow and the air induction cause a large air convection at a very low speed to the air conditioning target area, by the smooth outflow resistance and the thermal radiation from the flat heat transfer portion to the air conditioning target area, It is effective, and can be heated smoothly and well.

In particular, according to this configuration, since the entire drain pan is disposed inside the lower case body of the apparatus body, the beauty of the apparatus can be improved as compared with the conventional apparatus in which the drain pan is exposed.

In addition, it is possible to effectively reduce the dripping noise of the condensation water heard in the user's ear, so that it is a natural convection type device without fan noise, and can be a quiet air conditioner.

Furthermore, it is possible to effectively prevent the dust in the air conditioning area from entering the inside of the drain pan, thereby reducing the burden of cleaning and maintenance of the drain pan, and effectively preventing clogging and the like caused by dust intrusion .

According to a second aspect of the present invention,

And the upper surface of the lower case of the apparatus body is inclined posture that becomes lower toward the air conditioning target area.

According to this configuration, in the cooling operation, cool air, which naturally drops along the flat heat transfer portion in the vertical posture, can be flowed out to the air conditioning target region while being smoothly changed in the horizontal direction by guiding by the inclined upper surface portion of the lower case body have.

Further, when the heating operation is enabled, the air introduced into the lower portion of the flat heat insulating portion from the air conditioning subject area by the attraction due to the natural rise of the warming in the heating operation is guided by the inclined upper surface portion of the instrument body lower case It is possible to smoothly flow upward into the lower portion of the flat heat transfer portion while changing the direction.

That is, it is possible to promote the air convection in the air-conditioning target region and increase the heat absorbing function and the heat radiation function of the flat heat-transfer portion.

According to a third aspect of the present invention,

A heat transfer element in a vertical posture made of a heat-resistant porcelain and a heat transfer tube adhered to the heat transfer element constitute the flat heat transfer portion,

The lower end of the heat transfer element is inserted into the lower case of the apparatus body through the insertion hole formed in the upper surface of the lower case of the apparatus body,

And the condensate flowing down along the heat transfer element flows into the drain pan through the insertion hole.

According to this configuration, since the lower end of the heat transfer element in the vertical posture is also concealed by the lower case of the appliance body, the aesthetic appearance of the device can be further improved, and the penetration of dust into the drain pan can be further effectively prevented.

According to a fourth aspect of the present invention,

An upper frame of the device body in the transverse direction is provided above the flat heat transfer portion,

And the lower surface of the upper body of the apparatus body is set to a higher position in the inclined posture toward the air conditioning object area.

According to this configuration, air introduced into the upper portion of the flat heat-insulating portion from the air-conditioning target area due to the natural descent of the cold air in the cooling operation is smoothly lowered To the upper portion of the flat heat transfer portion.

Further, in the heating operation, when the heating operation is enabled, the heater that spontaneously rises along the flat heat transfer portion in the vertical posture is smoothly changed in the horizontal direction by the guidance by the inclined bottom portion of the upper body of the appliance body, It can flow out to the target area.

According to a fifth aspect of the present invention,

A vertical body of the instrument body upper case disposed above the flat heat conductive part, a vertical body body lower case arranged on both sides of the flat heat transfer part, and a vertical posture connecting the lower body of the apparatus body and the upper body of the body of the apparatus And is surrounded by the periphery of the flat heat conductive portion.

According to this configuration, high device strength can be secured.

Further, by the pair of machine body side frames, it is possible to suppress air inflow from the side of the flat heat transfer portion and air inflow from the side to the flat heat transfer portion, and it is possible to prevent the natural force of the cold air along the flat heat transfer portion in the vertical posture, Thereby further promoting the air convection in the region to be air-conditioned and further enhancing the heat absorbing action and the heat radiation action of the flat heat conductive portion.

Particularly, this configuration is configured such that the upper surface portion of the lower main body of the apparatus body is made to be inclined posture lower toward the air conditioning target region (the second characteristic configuration) (The fourth characteristic configuration), in addition to the guiding action of the inclined upper surface portion and the inclined lower surface portion with respect to the descending cold air or the rising air or the attracted air as described above, the vertical flat heat transfer portion It is possible to more effectively stabilize the natural rise of the following cold air or the natural rise of the warm air.

According to a sixth aspect of the present invention,

The front surface portion of the flat heat transfer portion is exposed to the air conditioning target area in front,

The rear surface portion of the flat heat transfer portion is closed by the rear plate portion with respect to the rear space,

The rear plate portion is a multi-layered structure having a front porcelain layer on the front side and a heat insulating layer on the rear side.

According to this configuration, in the cooling operation, the cooling air is shut off by the rear plate portion, the diffusive cold and heat conduction in the direction of the plate surface by the heat-shading porcelain layer on the front side in the rear plate portion, It is possible to effectively prevent condensation from occurring on the seal wall close to the back surface of the apparatus (that is, the seal wall close to the back surface side of the flat heat conductive portion) by the heat insulation by the heat insulating layer on the side of the apparatus.

Also, due to diffusive cold and heat conduction in the direction of the sheet surface by the heat-shading porcelain layer on the front side, it is also possible to avoid localized lowering at the front side of the rear plate portion, and the occurrence of condensation on the front side of the rear plate portion Can be effectively prevented.

Further, by the diffusive cold and heat conduction in the direction of the sheet surface by the heat-shading porcelain layer on the front side, the heat-shading porcelain layer on the front side can contribute to the efficiency and uniformity of air cooling in the flat heat transfer portion, May be further improved.

Further, in the heating operation, in the heating operation, interruption of warming and radiant heat by the rear plate portion, diffusive thermal conduction in the direction of the plate surface by the heat-shading porcelain layer on the front side in the rear plate portion, It is possible to effectively prevent the occurrence of discoloration (discoloration) in the seal wall (the seal wall close to the rear side of the flat heat transfer portion) close to the back surface of the apparatus by the heat insulation by the heat insulating layer on the rear side of the apparatus.

Further, by the diffusive thermal conduction in the direction of the plate surface by the front porcelain layer on the front side, the porcelain or porcelain layer on the front side can contribute to the efficiency and uniformity of air heating in the flat heat transfer portion, May be further improved.

According to a seventh aspect of the present invention,

Both side portions of the flat heat transfer portion are closed by the side plate portions with respect to the side space,

This side plate portion has a multi-layer structure including a heat-shining porcelain layer on the inner surface side and a heat insulating material layer on the outer surface side.

According to this configuration, by the diffusive thermal conduction in the direction of the sheet surface by the inner heat-resistant porcelain layer on the inner surface side in the side plate portion, the heat-shading porcelain layer on the inner surface side can be efficiently cooled by air cooling in the flat heat transfer portion, It is possible to contribute to homogenization, and it is possible to further improve the generation of the falling cold air and the rising warm air.

In this type of air conditioner, there are many cases where frames are arranged on the sides of the flat heat transfer portion. According to this configuration, in the cooling operation, the cooling air is blocked by the side plate portion, It is possible to effectively prevent the occurrence of condensation in the frame flow arranged on the side of the flat heat transfer portion by the diffusive cold and heat conduction in the direction of the sheet surface by the layer and the heat insulating layer on the outer surface side in the side surface portion.

According to an eighth aspect of the present invention,

And the front surface of the rear plate portion is a glossy surface reflecting radiant heat.

According to this configuration, when the heating operation is enabled, in the heating operation, the heat radiation from the rear surface side of the flat heat transfer portion can be reflected by the shiny surface, It is possible to enhance the heating effect by the thermal radiation applied to the heat radiation.

According to a ninth aspect of the present invention,

The heat transfer tube is passed through the central portion of the longitudinally positioned heat transfer element made of heat and porcelain in a vertical posture,

A plurality of warp portions extending in the longitudinal direction over substantially the entire length of the electrothermal elements are arranged in the left and right directions on the front surface side and the rear surface side of the heat transfer element,

The heat transfer elements having the heat transfer tubes and the fin portions are juxtaposed in the left and right direction to constitute the flat heat transfer portion,

The fin portions on the front side of each of the heat transfer elements are formed into a fin portion having a longer extending projection length forward as the fin portions located on the left and right center sides of the respective heat transfer elements,

The bent portions on the rear side of each of the heat transfer elements are formed as bent portions having the same extending protrusion lengths to the rear side.

According to this configuration, since the imaginary envelope line connecting the front ends of the front side fin portions protrudes forward, it is possible to prevent the heat transfer tube from being cooled or heated (i.e., cooling or heating each of the heat transfer elements) It is possible to impart a spreading in the left and right width directions to the outflow of cold air, the outflow of warm air, and the thermal radiation from the flat heat transfer portion to the air conditioning target area in front of the flat heat transfer portion.

On the other hand, since the imaginary envelope in the plane view connecting the front ends of the rear side fins is straight or substantially straight, the diffusive cold heat conduction or thermal conduction in the direction of the sheet surface by the front- The air cooling in the flat heat transfer portion and the uniformization of the air heating can be further promoted.

According to a tenth aspect of the present invention,

An air inflow portion is formed in the upper and lower middle portions of the rear plate portion,

And the air in the rear space flows into the arrangement portion of the flat heat transfer portion through the air inflow portion due to draft caused by the flat heat transfer portion.

According to this structure, the draft airflow generated in the flat heat transfer portion (that is, the natural downward flow of cold air in cooling operation and the natural upward flow in warming operation in cooling operation) causes the air in the rear space to flow into the air inlet The flow of cool air from the flat heat transfer portion to the air conditioning target area ahead and the outflow of warm air can be promoted by the inflow of the attracting air.

Further, since the air inlet is provided in the middle portion in the vertical direction of the rear plate portion, air in the rear space can efficiently be guided to the arrangement portion of the flat heat transfer portion by the attracting action of the already- So that it is possible to more effectively promote the outflow of cold air and the outflow of warm air to the air conditioning target region.

In addition, the shape of the back plate portion may be a flat plate shape, a left-right direction middle portion positioned rearward, a 'C' shape in a plan view, So long as the rear side can be closed with respect to the rear space, various shapes can be adopted.

Further, the specific portion (region) of the rear plate portion provided with the air inlet portion is not limited to the portion located immediately behind the flat heat transfer portion as well as the portion deviating outward in the lateral direction from the room immediately after the flat heat transfer portion do.

According to an eleventh aspect of the present invention,

The rear plate portion is constituted by an upper plate portion arranged on the upper side and a lower plate portion arranged on the lower side,

A plate portion located on the downstream side in the flow direction of the draft flow out of the upper plate portion and the lower plate portion is disposed behind the plate portion located on the upstream side in the flow direction of the draft flow,

The lower side portion, the lower side plate portion and the upper side portion of these upper side plate portions are overlapped in the forward and backward directions,

And a gap as the air inflow portion is formed between the lower portion of the upper plate portion and the upper portion of the lower plate portion in the overlapping portion.

According to this configuration, since the gap as the air inflow portion is formed in the form of a tubular air inflow path having an outlet directed to the downstream side in the flow direction of the draft flow (that is, an outlet to the arrangement portion of the flat heat transfer portion) The inlet air from the rear space can be smoothly and stably introduced into the arrangement portion of the flat heat transfer portion in a state of rectification (flow) of the drawn air from the rear space in the process of passing through the tubular air inflow path.

Therefore, it is possible to more effectively promote the outflow of cold air and the outflow of warm air from the flat heat conductive portion to the front air conditioning target region.

According to a twelfth aspect of the present invention,

Wherein the front plate portion disposed forward of the upper plate portion and the lower plate portion has a multi-layer structure including a heat-shading porcelain layer on the front surface side and a heat insulating material layer on the rear surface side,

And the rear side plate portion disposed rearwardly of the upper plate portion and the lower plate portion is formed entirely by a heat-or-ceramics material.

According to this configuration, the same effect as that of the above-described seventh feature can be obtained basically for the front plate portion having a multi-layer structure.

However, in the case of employing the eleventh feature, the operation (either one of heating operation and cooling operation) opposite to the operation (either one of heating operation and cooling operation) in which air is introduced from the air inlet is performed , It is conceivable that a part of the draft at the time of the reverse operation (hereinafter also referred to as the reverse draft) sometimes flows out in the reverse space through the gap in the form of the cylindrical air inflow path .

On the other hand, according to the above-described configuration, the reserved cold heat and the retained heat of the reverse draft flowing out to the rear space through the gap can be directly heated by the direct heat exchange between the rear side plate portion formed by the heat- After being effectively taken away, the reverse draft can be drained into the rear space.

In any one of the tenth through twelfth features, the following constructions may be employed.

An air outflow section that allows a part of the inflow air from the air inflow section to pass through the flat heat transfer section and flows out may be provided on the downstream side in the flow direction of the draft flow than the air inflow section.

An auxiliary air inflow portion for allowing air to flow into the arrangement portion of the flat heat transfer portion by draft caused by the draft may be provided on the side of the flat heat transfer portion.

The inflow direction changing means for changing the inflow direction of the air from the air inflow portion may be provided.

Opening and closing means for opening and closing the air inflow portion may be provided.

Opening area adjusting means for adjusting the opening area of the air inflow portion may be provided.

According to a thirteenth aspect of the present invention,

The flat heat transfer portion is constituted by the heat transfer element in the vertical posture made of the heat and porcelain material and the heat transfer tube adhered to the heat transfer element,

A pair of element lower support frames for supporting a lower end portion of the heat transfer element in the vertical posture are disposed inside the device body lower case,

The heat transfer tubes projecting from the lower ends of the heat transfer elements are inserted into the gaps between the lower element support frames in a non-contact state with respect to the pair of element lower support frames,

And the lower end portion of the electrothermal heating element is supported by the pair of lower element supporting frames by fixing the lower end portion of the electrothermal heating element to each of the pair of element lower supporting frames in the heat transfer tube insertion state.

According to this configuration, it is possible to support the integrated body of the heat transfer tube and the heat transfer element through the support function of the pair of element lower support frames at the lower end portion of the heat transfer element, with the exclusive support for direct connection to the heat transfer tube being eliminated .

In other words, the integrated body of the heat transfer tube and the heat transfer element can be supported by the pair of element lower support frames via the heat transfer element, while using the heat transfer element in close contact with the heat transfer tube as a support.

Therefore, even if a low-strength tube such as a copper tube or an aluminum tube is used as the heat transfer tube, the heat transfer tube and the heat transfer element can be supported by the heat transfer tube, Can be avoided.

Further, in the cooling operation, even if the generation of condensation water in the heat transfer element that absorbs heat is inherent, since the dedicated support as described above is unnecessary, it also involves a problem of generation of condensation water in such a dedicated support The integrated body of the heat transfer tube and the heat transfer element can be supported by the pair of element lower support frames.

From this point of view, this configuration facilitates the design of the apparatus from the viewpoint of sufficiently securing the support strength for the integral body of the heat transfer tube and the heat transfer element, and also, in view of the correspondence with the number of generated dew condensation in the cooling operation, Can be easily designed.

In this configuration, fixing the lower end portion of the heat transfer element to the lower element support frame is not limited to the case where the lower end portion of the heat transfer element is integrally connected to the element lower support frame, but also the case where the lower end portion of the heat transfer element Quot; refers to restricting the movement to at least one predetermined direction.

According to a fourteenth aspect of the present invention,

An instrument body upper frame in the transverse direction is disposed above the flat heat transfer portion,

A pair of upper element supporting frames for supporting upper ends of the heat transfer elements in the vertical posture are arranged inside the upper body of the device body,

The heat transfer tubes projecting from the upper end of the heat transfer element are inserted into the gaps between the upper support frames in a non-contact state with respect to the pair of upper element support frames,

And the upper end portion of the heat transfer element is supported by the pair of upper element support frames by fixing the upper end portion of the heat transfer element to each of the pair of upper element support frames in the heat transfer tube insertion state.

According to this configuration, the integrated body of the heat transfer tube and the element can be supported through the function of supporting the upper end portion of the heat transfer element of the pair of upper element supporting frames without the dedicated support directly connecting to the heat transfer tube.

In other words, the integrated body of the heat transfer tube and the element can be supported by the pair of upper element supporting frames via the heat transfer element in a state of using the heat transfer element in close contact with the heat transfer tube as a support.

Therefore, even if a soft tube of low strength such as a copper tube or an aluminum tube is used as the heat transfer tube, the supporting load (in particular, a load having a horizontal component) in the support of the integral body of the heat transfer tube and the element It is also possible to prevent the heat transfer pipe from being projected.

Further, in the cooling operation, even if the generation of condensation water in the heat transfer element that absorbs heat is inherent, since the dedicated support as described above is unnecessary, it also involves a problem of generation of condensation water in such a dedicated support The integrated body of the heat transfer tube and the heat transfer element can be supported by the pair of upper element supporting frames.

Thus, in addition to the thirteenth feature described above, in addition to facilitating the design of the apparatus in terms of sufficiently securing the supporting strength for the integral body of the heat transfer tube and the heat transfer element, It is possible to further facilitate the design of the apparatus in terms of the correspondence with the number of generated condensation in the apparatus.

In this configuration, fixing the upper end of the electrothermal heating element to the upper element supporting frame is not limited to the case where the upper end of the electrothermal element is integrally connected to the upper element supporting frame, Quot; refers to restricting the movement to at least one predetermined direction.

According to a fifteenth aspect of the present invention,

And the upper end of the heat transfer element is supported by the pair of upper element supporting frames in a state allowing thermal expansion and contraction in the vertical direction.

According to this configuration, it is possible to avoid an undue force acting on the element lower support frame or the element upper support frame due to heat expansion and contraction (particularly, thermal expansion) of the heat transfer element in the vertical posture.

Therefore, the durability of the apparatus is further enhanced, and abnormal noise such as creaking sound caused by the above-mentioned excessive force can be effectively suppressed.

According to a sixteenth aspect of the present invention,

Wherein the drain pan is disposed below the pair of element lower support frames inside the device body lower case,

And the lower surface of each of the pair of lower support frames is inclined toward the gap between the pair of lower frames as the lower portion thereof is lowered.

According to this configuration, even when dew condensation occurs on the surface of the element lower support frame due to cooling of the heat transfer tube and the heat transfer element in the cooling operation, the number of dew condensation is reduced to one pair (That is, in a state in which it is inclined toward the side where it is easily received by the drain pan), thereby making it possible to more reliably prevent occurrence of leakage trouble due to the number of generated dew condensation have.

In the case where the drain pan is disposed below the pair of element lower support frames in the inside of the device body lower case, the lower surface of each of the pair of upper element support frames is arranged so as to be closer to the lower side The inclined surface inclined toward the gap side between the pair of upper support frames may be used.

That is, according to this configuration, even when condensation water is generated on the surface of the element upper support frame due to cooling of the heat transfer tube and the heat transfer element in the cooling operation, the dew condensation number is made to follow the inclined lower surface of each of the element upper support frames (That is, in a state in which it is inclined toward the side that is easily received by the drain pan) toward the gap between the pair of upper support frames.

According to a seventeenth aspect of the present invention,

A drain receiving mechanism for receiving the dew condensation water flowing along the heat transfer element and stopping the dew condensation and guiding the dew condensation water to the drain pan is placed on the element lower support frame in such a manner that the drain receiving mechanism is suspended over the pair of element lower support frames,

And the lower end of the heat transfer element is supported by the pair of lower element supporting frames via the drain receiving mechanism while the lower end of the heat transfer element is placed on the drain receiving mechanism.

According to this configuration, as compared with the case where the lower end of the heat transfer element is directly placed on the lower element support frame, the heat transfer element and the element lower support frame It is possible to effectively prevent the occurrence of condensation water in the element lower support frame due to the direct contact with the element supporting frame, thereby making it possible to more reliably prevent the generation of the water leakage trouble due to the generated condensation water.

Further, the common frame member formed by the common frame member and the above-described element lower support frame and the element upper support frame, and the common frame member used as the element upper support frame have different postures on the cross- Or may be disposed at respective support positions with respect to the heat transfer element in a state.

This makes it possible to reduce the kinds of the frame members necessary for manufacturing the device and to reduce the cost of the device as compared with the case where the element lower support frame and the element upper support frame are formed by different frame materials. The manufacturing can be further facilitated.

According to a nineteenth aspect of the present invention,

An element lower support frame for supporting a lower end portion of the heat transfer element in the vertical posture is disposed inside the lower case of the device body,

A drain receiving mechanism for receiving and stopping the dew condensation water flowing down along the heat transfer element is disposed between a lower end portion of the heat transfer element and the element lower support frame,

And the drain pan is guided to the drain pan without bringing the dew condensation water which is stopped to be received into contact with the element lower support frame.

According to this configuration, in the cooling operation, it is possible to prevent the element lower support frame from being wet by the dew condensation number from the heat transfer element by the dewatering guide described above by the drain pan.

Also, the occurrence of condensation in the element lower support frame can be effectively suppressed by the heat insulation by the drain receiving mechanism between the lower end of the electrothermal element and the element lower support frame.

This makes it possible to further facilitate the design of the apparatus in terms of the correspondence with the number of generated dew condensation.

According to a nineteenth aspect of the present invention,

A leg portion (leg portion) for making contact with a part of the upper surface of the element lower support frame is provided on the lower surface of the drain receiving mechanism,

And the lower end portion of the heat transfer element is fixed to the element lower support frame by a fixing screw passing through the leg portion.

According to this configuration, since the middle portion of the fixing screw is located in the through hole of the leg portion of the drain pan, it is possible to effectively prevent condensation water from occurring in the fixing screw.

In the implementation of the eighteenth feature or the nineteenth feature, the following constructions may be employed.

It is also possible to provide a drainage tube portion for guiding the condensation water discharged from the drainage port portion of the bottom portion to a lower position that does not contact the element lower support frame on the lower surface of the bottom portion of the drainage receiving mechanism.

The drain receiving mechanism may have a length corresponding to the lateral width dimension of the flat heat transfer portion and a common drain port portion for guiding the condensate water flowing down from the heat transfer element to the drain pan side may be formed in the bottom portion of the drain receiving mechanism.

The drainage tub portion of the drain pan is fit to the element lower support frame from above.

According to a twentieth aspect of the present invention,

A gap filling material made of a heat insulating material is disposed in the inside of the lower case of the device at least near the upper opening of the lower case of the device body,

And the air filling material cooled by the flat heat transfer portion during the cooling operation flows into the inside of the lower case of the device body by the gap filling material.

That is, when the cooling air from the flat heat conductive portion enters the inside of the lower body case of the appliance body during the cooling operation, the lower body of the appliance body is cooled from the inner side by the inflow cold air, There is a case.

On the other hand, according to the above configuration, it is possible to effectively prevent the occurrence of condensation on the outer surface of the lower case body of the device due to such cold air intrusion.

In addition, since the gap filling material is made of a heat insulating material, condensation may occur on the outer surface of the gap filling material itself due to the lowering of the temperature by the cooling cold air or by the cold and heat propagation from the cooled gap filling material, It is possible to effectively prevent the condensation from occurring in the condenser.

According to a twenty-first aspect of the present invention,

The gap filling material is formed by joining the front split portion and the rear split portion,

And an accommodating space which is opened by disengagement of the front split portion and the rear split portion is formed in the gap filling portion,

And the equipment inside the apparatus body lower case is accommodated in the accommodation space in a state where the gap filling material is disposed inside the apparatus body lower case.

According to this configuration, the internal equipment (for example, the drain pan or the element lower supporting frame) of the lower case of the apparatus main body accommodated in the receiving space inside the gap filling member is surrounded by the gap filling material made of the heat insulating material .

Therefore, it is possible to more effectively prevent the occurrence of condensation on the outer surface of the inner equipment in the lower case of the device, and the occurrence of condensation on the inner and outer surfaces of the lower case of the device body due to cold and heat propagation from the inner equipment.

Also, the assembly of the gap filling material to the inside of the device body lower case is made such that the internal equipment of the device body lower case is inserted between the front split portion and the rear split portion, and these split portions are joined.

This makes it possible to easily assemble the gap filling material into the inside of the lower body case of the apparatus in a state in which the equipment in the lower case of the apparatus body is housed in the receiving space inside the gap filling material.

Furthermore, when inspecting or repairing the internal equipment of the lower body of the apparatus, it is only necessary to release the connection between the front split unit and the rear split unit, Inspection or repair can be easily performed.

According to a twenty-second aspect of the present invention,

The front split portion is brought into close contact with the inner surface of the front panel portion in the lower case of the apparatus body,

And the rear split portion is brought into close contact with the inner surface of the rear panel of the lower case of the apparatus body.

According to this configuration, the front split portion and the rear split portion in the gap filling material made of heat insulating material can be directly insulated from the inner surface of the front panel portion and the inner surface of the rear panel portion in the lower case of the device body.

Therefore, the occurrence of condensation in the front panel portion and the rear panel portion in the lower case can be more reliably prevented.

In the implementation of the twentieth to twenty-second features, any one of the following constructions may be employed.

The gap filling material is placed in a state covering the element lower support frame by the gap filling material, and the gap filling material is placed inside the device body lower case.

The drain pan is covered by the gap filling material, and the gap filling material is placed inside the device body lower case.

And the gap filling material is placed in the interior of the lower body case portion of the apparatus body.

The front split portion of the gap filling material is attached to the inner surface of the front panel portion of the lower case of the device body and the rear split portion of the gap filling material is attached to the inner surface of the rear panel portion of the device lower case.

According to a twenty-third aspect of the present invention,

A drain pump for draining the water from the drain pan through a drain pipe,

A water level detecting means for detecting a water level in the drain pan;

And drainage control means for operating the drain pump when the detected water level by the water level detection means is equal to or higher than a set drainage water level,

The drainage control means starts operation of the drain pump in accordance with the detected water level being equal to or higher than the set drainage water level and thereafter starts the time measurement of the drainage set time when the detected water level becomes lower than the set drainage water level and,

Thereafter, the operation of the drain pump is stopped when the set drainage time has elapsed.

According to this configuration, when the detected water level becomes lower than the set drain water level due to the operation of the drain pump after the detected water level becomes equal to or higher than the set water drainage level and operation of the drain pump is started, The timing of the time starts.

Therefore, in a situation where the number of condensed water flowing into the drain pan from the flat heat transfer portion is large, the pump operation time from the detection water level lower than the set drainage water level to the commencement of the set drainage time (so- Operation time) becomes longer.

As a result, the operation time from the start of operation of the drain pump to the operation stop becomes longer, and the drainage amount per drain pump operation increases.

Thus, as compared with, for example, when the detected water level becomes equal to or higher than the set drainage water level, operation of the drain pump is started and timing of the set drainage time is started as well, It is possible to effectively suppress the increase in the frequency of operation / shutdown of the drain pump in the situation.

Therefore, the acoustic discomfort given to the user by the operation / stop of the drain pump can be effectively reduced.

In addition, in a situation where the number of dew condensed water is large, it is possible to effectively prevent an increase in the frequency of operation / stoppage of the drain pump, and conversely, in a situation where the number of dew condensed into the drain pan from the air cooling unit is smaller than usual, The pump operation time (the actual pump extension operation time) until the start of the timing of the set drainage time becomes shorter than the drainage water level.

Also, the operation time from the start of operation of the drain pump to the stop of operation is shortened, and the drainage amount per operation of the drain pump is reduced.

As a result, the operation time of the drain pump becomes excessively long in a situation where the number of condensations flowing into the drain pan from the flat heat transfer portion is small, so that the drain pan is discharged before the operation of the drain pump is stopped, (That is, pump operation in a state in which there is not enough suction water) can be effectively prevented.

Therefore, it is possible to effectively prevent the acoustic discomfort caused by the coarse operation of the drain pump and the premature deterioration of the drain pump.

In addition, the operation time of the drain pump is changed in accordance with the change in the flow rate of the condensate water to the drain pan, and when the level of the drain pan is lowered to the setting start water level lower than the set drainage level And starts timing of the set drain time at the time of detection. Or that the water level in the drain pan has dropped to the set drainage stop water level, and the operation of the drain pump is stopped at the time of detection.

However, in this case, it is necessary to detect whether the level in the drain pan has dropped to the set time-counting start level or the set drainage stop level, separately from the detection of whether the level in the drain pan is equal to or higher than the set drainage water level, The number of points increases.

On the other hand, in the above configuration, only the detection of whether or not the water level in the drain pan is equal to or higher than the predetermined drainage water level is started, and the operation of the drain pump is started in the state of using the hysteresis on the water level detection at the rise of the water level and the water level decrease The water level may be different from the water level at which the timing of the set drainage time is started.

Therefore, the number of detecting points of the water level can be reduced. For example, when using the float switch as the water level detecting means, only one float switch for the set drainage number can be used.

That is, by stopping the operation of the drain pump by the timer control, the number of detecting points of the water level can be reduced and the apparatus configuration for water level detection can be simplified.

According to a twenty-fourth aspect of the present invention,

The set drainage time is a time required for the water pump to drop from the water level at the beginning of the set drainage time to the vicinity of the bottom of the drain pan in the operation of the drain pump There is one point.

According to this configuration, even if the flow rate of the condensation water flowing into the drain pan from the flat heat transfer portion changes somewhat, not only the change in the pump extension operation time as described above according to the change in the flow rate of the pump, The time point at which the level of the drain pan is lowered to the vicinity of the bottom of the drain pan can be set to a state where the stopping point (that is, the time point at which the set drainage time has elapsed) is certainly high.

Therefore, it is possible to more effectively reduce the frequency of operation / stop of the drain pump while preventing the operation of the drain pump.

According to a twenty-fifth aspect of the present invention,

And the drainage control means stops the cooling operation when the detected water level rises to a set upper water level higher than the set drainage water level.

According to this configuration, even if the water level in the drain pan rises more than the predetermined drainage water level for some reason, when the detected water level rises to the set upper limit water level, the cooling operation is stopped, The generation is stopped.

Therefore, it is possible to more reliably prevent the leakage water from flowing out of the drain pan to overflow.

Further, in the implementation of this configuration, a low-level detection unit for detecting whether or not the water level in the drain pan is higher than the set drainage water level, and a high-level detection unit for detecting whether or not the water level in the drain pan has risen to the set upper- For example, by using different float switches, or may detect the respective water levels independently of each other.

In this case, even if the water level in the drain pan rises above the set drainage water level due to the failure of the low-level detection unit, then the rise in the water level in the drain pan to the set upper limit water level is detected by the high- It is possible to more reliably prevent the leakage trouble in which the drainage of the drain pan overflows.

A twenty-sixth characterizing feature of the present invention is that,

Wherein the water drainage control means starts counting the set maintenance time when the detected water level becomes lower than the set upper water level after stopping the cooling operation as the detected water level rises to the set upper water level,

Thereafter, the operation of the drain pump is stopped at a point of time when the set conservation time has elapsed.

According to this configuration, after the detected water level rises to the set upper limit water level and the cooling operation is stopped, the drain pump is operated only for the set maintenance time from the time point when the water level in the drain pan has decreased to the set upper water level by the continuous operation of the drain pump , The drain pump stops at the time when the set maintenance time elapses.

Therefore, it is possible to avoid operating the drain pump more than necessary in a state in which the cooling operation is stopped, and it is possible to avoid giving the user worries about leakage trouble due to the pump operation that is unnecessary.

And when the detected water level becomes lower than the set upper water level by continuous operation of the drain pump after the detected water level becomes the set upper water level or more and the operation of the air cooling unit is stopped, Lt; / RTI >

Therefore, as in the case of the twenty-third aspect, in a situation where the number of residual condensed water flowing into the drain pan from the flat heat transfer portion is large even after the cooling operation is stopped, the detected water level becomes lower than the set upper water level, The pump operation time (substantial pump extension operation time) becomes longer.

Conversely, in a situation where the number of residual condensed water flowing into the drain pan from the flat heat transfer portion in the cooling operation is stopped, the detected water level becomes lower than the set upper water level and the pump operation time The actual pump extension operation time) is shortened.

Therefore, it is possible to reliably drain the residual condensed water flowing into the drain pan from the flat heat transfer portion while the cooling operation is stopped, and to effectively avoid the drain pump operation more than necessary after the cooling operation is stopped.

Furthermore, in the case of the above-described configuration, just as in the case of the twenty-third feature, it is only necessary to detect whether the water level in the drain pan is equal to or higher than the set upper water level. And the water level at which the timing of the set maintenance time is started.

Therefore, the number of detecting points of the water level can be reduced. For example, when the float switch is used as the water level detecting means, only one float switch for the set upper limit can be used.

A twenty-seventh characterizing feature of the present invention is that,

The set maintenance time is a time required for the water pump to drop from the water level at the start of the set maintenance time to the vicinity of the bottom of the drain pan by the operation of the drain pump .

According to this configuration, even after the water level in the drain pan rises to the set upper limit level and the cooling operation is stopped, the remaining condensation water still remaining in the air cooling section flows into the drain pan continuously. On the other hand, The total number of residual condensed water flowing from the flat heat transfer portion in the operation stop state even after the start of counting of the set maintenance time is drained from the drain pan and the drain water The drain pump can be stopped in a state in which it is almost completed.

Therefore, while preventing the drain pump from being idle, the drain pan can be kept almost empty in preparation for the next cooling operation start and maintenance and inspection until the next cooling operation is performed. Thus, It is possible to further enhance the safety against water leakage trouble during maintenance and inspection.

In any one of the twenty-third to twenty-seventh features, any one of the following constructions may be employed.

A pocket piping portion extending downward from the bottom portion drain port of the drain pan and extending upwardly is formed in the drain pipe and the drain pump is interposed in the pocket piping portion of the drain pipe at a position lower than the bottom portion of the drain pan .

The drainage control means stops the cooling operation when the detected water level rises to the set upper water level which is higher than the set drainage water level and makes the operation to start the operation of the operation of the drain pump again.

The drainage control means starts counting the set maintenance time from the point of time when the operation start operation of the drain pump is tried again according to the rise of the detected water level to the set upper limit water level and thereafter, The operation stop operation is performed.

The set conservation time is set such that the total amount of the residual condensed water flowing into the drain pan from the flat heat transfer portion even after the cooling operation is stopped as the detected water level rises to the set upper limit water level by the operation of the drain pump, As shown in Fig.

The capacity of the drain pan is the capacity capable of storing the entire amount of residual condensed water flowing into the drain pan from the flat heat transfer portion even after the cooling operation is stopped as the detected water level rises to the set upper limit water level in design.

The drainage control means starts counting the set time limit in accordance with the start of operation of the drain pump, and then when the operation of the drain pump continues until the passage of the set time limit, The operation of the drain pump is forcibly stopped.

According to a twenty-eighth aspect of the present invention,

A transverse upper body frame for connecting an upper end of the flat heat transfer portion is provided,

A guide groove extending in the left-right direction is formed on the upper surface of the upper body of the apparatus body,

A slide member capable of moving in the lateral direction along the guide groove and capable of being fixed to the guide groove by a fixing operation is provided,

And a tumbling stopper capable of being connected to a wall positioned at the rear of the apparatus main body lower case is attached to the slide member such that the tumbler can move in the left and right direction integrally with the slide member .

According to this configuration, by appropriately moving the slide member in the left-right direction, it is possible to select a suitable connection position of the conductive path to the wall. Then, after a proper connection position is selected, the slide member and the conductive projection connected thereto are fixed to the guide groove by a fixing operation, and the conductive projection is connected to the wall, It is possible to prevent conduction.

Therefore, it is possible to appropriately perform the prevention of the falling of the vehicle in a state of high responsiveness to the installation conditions such as the wall structure and the like.

1 is a perspective view of an indoor unit in an air conditioner.
2 is an exploded perspective view of the indoor unit
Fig. 3 is a longitudinal sectional view
4 is a longitudinal sectional view
5 is a longitudinal sectional view of the instrument body upper frame
6 is a cross-sectional view of the indoor unit
7 is a perspective view showing a front panel of the upper body of the apparatus body and its attachment state
8 is a perspective view showing a front panel of the lower case body of the device and its attachment state
9 is an exploded perspective view around the group of heat transfer element elements,
10 is an exploded perspective view of the lower supporting structure of the heat transfer element
11 is a top perspective view of the drain pan;
12 is a bottom perspective view of the drain pan,
13 is a perspective view of the molded heat insulating material.
14 is an exploded perspective view of the molded heat insulating material
Fig. 15 is a perspective view of an anti-
16 is a perspective view showing the state before and after the formation of the conduction barrier,
17 is a perspective view showing another embodiment of the conductive earth
18 is a perspective view showing another embodiment of a conductive barrier
Fig. 19 is a perspective view showing another embodiment of the conductive barrier. Fig.
20 is a schematic diagram of the piping around the drain pump
21 is a time chart of the drain pump operation
22 is a flowchart of the drainage control
23 is a flowchart showing another embodiment of drainage control
24 is a front perspective view of the indoor unit in the air conditioner according to the second embodiment;
25 is a rear perspective view of the indoor unit in the air conditioner according to the second embodiment.
26 is an exploded perspective view of the indoor unit showing the second embodiment
27 is an exploded perspective view of a main part of an indoor unit showing the second embodiment
28 is an exploded perspective view around the group of heat transfer element elements shown in the second embodiment
29 is a longitudinal sectional view of the indoor unit showing the second embodiment
30 is a cross-sectional view of the upper portion of the indoor unit showing the second embodiment
31 is a cross-sectional view of the lower portion of the indoor unit showing the second embodiment
Fig. 32 is an explanatory diagram of the air flow in the cooling operation (a) and the heating operation (b) showing the second embodiment
Fig. 33 is an explanatory diagram of the air flow in the cooling operation (a) and the heating operation (b)
Fig. 34 is an explanatory diagram of an air flow in the cooling operation (a) and the heating operation (b)

(First Embodiment)

Fig. 1 shows an indoor unit 1 in a natural convection type air conditioner. This indoor unit (1) is provided with a flat heat transfer portion (2) in a vertical posture, which is exposed toward the front of the device body. The flat heat transfer portion 2 has a long rectangular shape when viewed in the front-rear direction.

The indoor unit 1 also includes a transverse upper body 1A of the instrument body disposed at the upper portion thereof, an instrument body lower case 1B disposed at the lower portion thereof, 1B of the machine body side frame 1C. That is, the flat heat transfer portion 2 is surrounded by the instrument body upper frame 1A, the instrument body lower case 1B, and the pair of right and left instrument body side frames 1C.

As shown in Figs. 1 and 2, the flat heat transfer portion 2 is provided with a plurality of (seven in this example) suction portions 15a and 15b extending in the vertical posture extending from the upper main body 1A of the apparatus body and the lower main body portion 1B of the apparatus main body. Heat transfer elements 3 for heat dissipation were arranged in parallel in the lateral direction at equal intervals in the left and right direction of the indoor unit 1. [

That is, the flat heat transfer portion 2 is made up of a group of juxtaposed heat transfer elements 3 in the vertical posture.

6 and 9, the straight tube portion 4a of the heat transfer tube 4 is passed over the entire length of the heat transfer element 3 on the vertical central shaft portion of each heat transfer element 3. [

Both the heat transfer element 3 and the heat transfer tube 4 are formed by a heat-and-heat porcelain. In this example, the heat transfer element 3 is made of aluminum. A copper tube was used as the heat transfer tube (4).

As shown in Figs. 7 and 9, adjacent pairs of the upper projecting portions of the straight pipe portion 4a of the heat transfer tubes 4 penetrating the respective electrothermal heating elements 3 are connected by the pair of upper left bend tubes 4b Respectively. Adjacent pairs of lower protrusions of the straight pipe portion 4a of the heat transfer pipe 4 passed through the respective heat transfer elements 3 were connected by a pair of lower filter bend pipes 4c alternately from the upper side.

That is, the heat transfer tube 4 is a serpentine tube formed by connecting a plurality of straight tube portions 4a in series by the upper and lower bend tubes 4b and 4c.

One end of the meandering heat transfer pipe 4 is connected to an outdoor unit (not shown) installed outdoors through a liquid side moving refrigerant pipe 5a covered with a heat insulating material. The other end of the meandering heat transfer pipe 4 is connected to the gas- And connected to the outdoor unit through the mobile refrigerant pipe 5b.

The outdoor unit of the outdoor installation was equipped with a compressor, an outdoor heat exchanger, an expansion valve, and a four-chamber valve.

That is, in the cooling operation, the outdoor heat exchanger functions as a condenser, and the outdoor heat exchanger 1 and the indoor heat exchanger 1 are connected to each other through the two moving refrigerant pipes 5a and 5b so that the meandering heat transfer pipe 4 of the indoor unit 1 functions as an evaporator. ) Of the refrigerant (R).

In the heating operation, the refrigerant path is switched by the four-way valve and conversely the two refrigerant pipes (two refrigerant pipes) are provided so as to function as the evaporator and to make the meandering heat transfer pipe 4 of the indoor unit 1 function as the condenser 5a and 5b to circulate the refrigerant R between the outdoor unit and the indoor unit 1. [

That is, in the cooling operation, by the deodorization of the heat of vaporization accompanied by the evaporation of the refrigerant R in the inside of the meandering heat transfer pipe 4 functioning as an evaporator, the heat transfer element 4 and the heat transfer element 4 ). By this cooling, the flat heat transfer portion 2 absorbs heat to cool the ambient air.

The air (cool air) cooled in the flat heat transfer portion 2 naturally drops along the flat heat transfer portion 2 in the vertical posture due to the difference in specific gravity due to the temperature difference. This descending cold air flows out from the lower portion of the flat heat transfer portion 2 downwardly forwardly and downwardly to the indoor unit installation space which is the air conditioning target region.

As a result, the room is cooled in such a manner as to generate a large convection flow of the room air in the indoor unit installation room with the outflow of the cold air.

The heat transfer element 4 and the heat transfer element 4 in close contact with the heat transfer tube 4 are discharged by the discharge of the condensation heat accompanying the condensation of the refrigerant R in the inside of the meandering heat transfer tube 4 functioning as the condenser Heat it. By this heating, the flat heat transfer portion 2 is made to radiate heat, heat radiation is made from the surface of the flat heat transfer portion 2, and the ambient air is heated.

The air (warm air) heated in the flat heat transfer portion 2 naturally rises along the flat heat transfer portion 2 in the vertical posture due to the difference in specific gravity due to the temperature difference. The rising hearth flows upward from the upper portion of the flat heat transfer portion 2 toward the indoor unit installation chamber.

As a result, in cooperation with the thermal radiation, the room is heated in such a manner as to cause large convection (convection in the direction opposite to that during cooling operation) of the room air in the indoor unit installation room along with the outflow of the warm air.

9, the liquid refrigerant pipe 5a on the liquid side is connected to one end of the meandering heat transfer tubes 4 located at the lower portion of one side of the flat heat transfer portion 2 as shown in Fig. The gas refrigerant pipe 5b on the gas side is connected to the other end of the meandering heat transfer tube 4 located on the upper left side of the flat heat transfer portion 2.

6, a plurality of warp portions 3a and 3b extending in the longitudinal direction over the entire length of the heat transfer element 3 are integrally formed on the front surface side and the rear surface side of each heat transfer element 3. As shown in Fig.

Specifically, as shown in the enlarged view in Fig. 6, each heat transfer element 3 is provided with a columnar core portion 3c on its cross-section, a substrate 3c extending from the core portion 3c to the left and right outside, And a base portion 3A extending in the left and right direction, which is formed by the portion 3d.

A plurality of front side fin portions 3a are extended and projected forward from the deep base portions 3A, 3c, 3d in an arrangement arranged at right and left equal intervals in a parallel posture.

Similarly, the same number of rear side fin portions 3b as that of the front side fin portions 3a are arranged at equally spaced positions in the parallel posture so as to correspond to the front side fin portions 3a, and the base portions 3A, 3c, 3d As shown in Fig.

A tube insertion hole 3e through which the heat transfer tube 4 is passed is formed in the core portion 3c. Among the front side fin portions 3a among the central side fin portions 3a 'and the rear side side fin portion 3b extending and projected from the core portion 3c, the central fin portion 3b' extending and projecting from the core portion 3c , And they are disposed in the front and rear half portions thereof to form the fastener insertion bore (3f) for fixing the element.

That is, the heat transfer element 3 is provided with the plurality of warp portions 3a, 3b in the vertical posture, thereby ensuring a large heat transfer area and heat radiation area for the ambient air of the heat transfer element 3. [

Further, in the cooling operation, the cooling air around the heat transfer element 3 is smoothly and naturally cooled down smoothly through the vertical grooves between the fin portions 3a and 3b, and the cooling air is not cooled around the heat transfer element 3 So that the indoor air of the indoor unit is smoothly drawn.

Further, the dew condensation occurring on the surface of the heat transfer element 3 is smoothly and naturally flowed along the surface of the heat transfer element 3.

As a result, the heat exchange efficiency between the surface of the heat transfer element 3 and the ambient air is kept high, whereby the outflow of cold air from the lower portion of the flat heat transfer portion 2 and the accompanying convection of air in the room are effectively And is also generated stably.

Similarly, in the heating operation, the heated air around the heat transfer element 3 is naturally raised smoothly in a state accompanied by a so-called chimney effect through the vertical grooves between the fin portions 3a and 3b, So that indoor air not heated to the periphery of the element (3) is smoothly drawn.

As a result, the heat exchange efficiency between the surface of the heat transfer element 3 and the ambient air is maintained at a high level, whereby the outflow of warm air from the upper portion of the flat heat transfer portion 2 and the accompanying convection of air in the room And stably occurs.

As shown in Figs. 2 and 6, the rear portion and the right and left side portions of the flat heat transfer portion 2 have a cross-sectional shape including the rear plate portion 6A and the left and right side plate portions 6B, Is closed by the closing plate (6).

In this closing plate 6, the boundary portion between the rear plate portion 6A and the left and right side portions 6B is an arcuate curved surface having a center on the inner side when viewed from the plane.

This closing plate 6 has a two-layer structure (an example of a multi-layer structure) having a heat-shine porcelain layer 6a and a heat insulating material layer 6b.

That is, the inner surface side (corresponding to the front surface side in the rear surface plate portion 6A) of the blocking plate 6 opposed to the rear surface portion and the side surface portion of the flat heat conductive portion 2 is formed of a plate material 6a An aluminum plate in the example). The outer surface side (corresponding to the rear surface side in the rear plate portion 6A) of the blocking plate 6 on the opposite side is formed by a heat insulating material 6b (foamed styrol in this example).

That is, in the cooling operation, the cooling of the heat transfer element 3 causes the cooling of the seal wall K on the back side of the indoor unit, thereby causing condensation on the surface of the seal wall K. Further, in the heating operation, the heating of the heat transfer element 3 causes the inner wall K on the back side of the indoor unit to be heated, so that there is a fear that the discoloration (discoloration) may occur on the surface of the thermal wall K.

On the other hand, by making the occluding plate 6 a two-layer structure as described above, in the cooling operation, it is possible to block the cooling air by the occluding plate 6, The occurrence of condensation on the seal wall K is reliably prevented by diffusive cold and heat conduction and heat insulation by the heat insulating material layer 6b on the outer surface side.

In addition, at the time of heating operation, the shutoff of the warming by the closing plate 6, the diffusion heat conduction in the direction of the sheet surface by the inner heat-resistant porcelain layer 6a on the inner surface side and the heat conduction by the heat insulating layer 6b on the outer surface side Thereby reliably preventing the occurrence of grilling on the seal wall K.

Further, in the cooling operation, the inner surface side of the closing plate 6 is uniformly lowered in the plate surface direction by the diffusive cold heat conduction in the plate surface direction by the inner heat-resistant porcelain layer 6a on the inner surface side, 2) is further uniformed in the right and left width directions, and furthermore, is made more efficient. As a result, the outflow of cold air from the lower portion of the flat heat transfer portion 2 is further promoted, and the uniformity in the lateral width direction of the outflow of cool air is also enhanced.

Further, in the cooling operation, localized lowering at the front side of the closing plate 6 is avoided by diffusive cold and heat conduction in the direction of the plate surface by the above-described heat and porcelain layer 6a as described above. Thus, the occurrence of condensation on the front side of the occlusion plate 6 due to such localized low temperature is also prevented.

Likewise, in the heating operation, by uniformly increasing the temperature of the inner surface side of the closing plate 6 in the direction of the sheet surface by the diffusive thermal conduction in the sheet surface direction by the inner surface porcelain layer 6a on the inner surface side, 2) is further uniformed in the right and left width directions, and furthermore, is made more efficient. As a result, the outflow of warm air from the upper portion of the flat heat transfer portion 2 is further promoted, and the uniformity in the right and left width directions of the warm air outflow is also increased.

Further, in the heating operation, in the thermal radiation from the surface of the electrothermal heating element 3, the rearward and sideward reflections are reflected by the shiny surface on the inner surface side of the closing plate 6, And further improves the uniformity of the thermal radiation.

As shown in Fig. 6, the projecting length of the forward portion of the heat transfer element 3 in the forward direction is longer as the warp portion 3a of the heat transfer element 3 is positioned at the center in the lateral direction.

In other words, a virtual envelope line connecting the front ends of these front side fin portions 3a is formed so as to have a pointed or semi-circular arc shape protruding forward. As a result, diffusion in the left and right width direction of the indoor unit is imparted to outflow cool air during cooling operation, outflow warm-up during heating operation, and thermal radiation.

On the other hand, the backward projections 3b of the respective heat transfer elements 3 have the same extension protrusion lengths to the rear (or substantially the same).

In other words, the imaginary envelope lines connecting the front ends of the rear side fin portions 3b as viewed in a plane were made to be straight lines. As a result, the above-described diffusion by the inner surface side porcelain layer 6a on the inner surface side of the occluding plate 6 is uniformly carried out with the cooling / heating conduction and the heat conduction, (Particularly, the front surface side in the rear plate portion 6A) in the first to sixth embodiments is further uniformized in the surface direction.

The heat transfer element 3 is manufactured by extrusion molding. Then, by the extrusion molding, the fins 3a, 3b, the core portion 3c, the base portion 3d, the tube insertion bore 3e, and the fixture insertion bore 3f are connected to the heat transfer element 3 at the same time Respectively.

In this extrusion molding, the rear side fin portions 3b having the same elongated protrusion lengths are arranged so as to be in a downwardly extending protruding posture. Then, extrusion molding is carried out in a state in which the group of the line of the rear side fin portion 3b is received on the conveying mechanism and stopped.

Thus, regardless of the complicated cross-sectional shape of the heat transfer element 3, the extrusion molding is performed in a state in which the heat transfer element 3 in the molding process is maintained in a stable posture. Further, defective molding of the heat transfer element 3 due to collapse during molding or the like is avoided.

In forming the heat transfer element 3, the inner diameter of the tube insertion hole 3e is made somewhat larger than the outer diameter of the heat transfer tube 4. Thereby, after forming the heat transfer element 3, the straight tube portion 4a of the heat transfer tube 4 is passed through the tube insertion hole 3e with no difficulty.

Thereafter, pressure such as oil pressure is applied to the pipe of the straight pipe portion 4a of the heat transfer pipe 4 to make the diameter of the straight pipe portion 4a of the heat transfer pipe 4 large. Thus, the straight tube portion 4a of the heat transfer tube 4 and the heat transfer element 3 are tightly integrated with each other in a state in which a gap is not left on the inner surface side of the tube insertion hole 3e. By doing so, it is possible to secure a high thermal conductivity between the heat transfer tube 4 and the heat transfer element 3.

In addition, the above-mentioned enlarging process of the heat transfer pipe straight pipe section 4a is carried out for each of the straight pipe sections 4a before the straight pipe sections 4a of the heat transfer pipe 4 are connected by the bend pipes 4b and 4c You can. The straight pipe portions 4a of the heat transfer pipe 4 may be connected by the bend pipes 4b and 4c to form the serpentine heat transfer pipes 4 and then may be performed simultaneously with the plurality of straight pipe portions 4a.

Further, in the above-mentioned large-diameter machining, protruding portions from the end portions of the electrothermal heating elements 3 in the straight pipe portion 4a of the heat transfer pipe 4 and bend pipes 4b, 4c connected to these protruding portions are clamped Thereby preventing the protruding portions and the connection bend tubes 4b and 4c from being enlarged.

2, 3, and 6, on the back surface of the closing plate 6 (that is, the back surface of the heat insulating material layer 6b on the outer surface side) (7) was attached in a surface contact state. The upper end portion and the lower end portion of the back panel 7 become the rear panel of the instrument body upper frame 1A and the instrument body lower case 1B, respectively.

The outer sides of the left and right instrument body side frames 1C are formed by side panels 8 extending in the vertical direction and having upper and lower ends as the side panels of the upper body 1A of the instrument body and the lower body 1B of the instrument body, And is formed by the left and right side plate portions 6B of the closing plate 6 serving as the inner surface of the heat transfer portion 2.

The side frame 9 extending in the up and down direction is disposed inside the instrument body side frame 1C in such a state that the left and right side plate portions 6B of the closing plate 6 are in surface contact therewith.

1, 2, 5, and 7, the outer frame of the instrument body upper frame 1A includes a front panel 10, an upper panel 11, an upper end portion of the back panel 7, An upper end portion of the left and right side panels 8 and a cap panel 8a for closing the upper opening portion of the side panel 8. [

The heat transfer element 3 is provided in the rear extension projection 10a of the front panel 10 (that is, the portion forming the ceiling surface in the arrangement portion of the flat heat transfer portion 2) A plurality of upper notches 10b serving as insertion holes through which the upper ends of the upper notches 10b are inserted are formed in a wave shape.

Further, the lower portion 10c of the front panel 10 in the instrument body upper frame 1A was set in an inclined posture in which the lower portion 10c was backwardly moved backward. The inclined portion 10c forms the lower surface of the instrument body upper frame 1A together with the rear extending projection 10a connected thereto.

That is, by providing the inclined portion 10c at the lower surface of the upper body 1A of the apparatus body, the outflow of warm air from the upper portion of the flat heat transfer portion 2 during the heating operation can be smoothly performed, So that the influx of the indoor air into the upper portion of the flat heat transfer portion 2 is smoothly performed during the cooling operation.

That is, the inclined portion 10c in the front panel 10 of the upper body 1A of the apparatus body constitutes the airflow guiding surface with respect to the upper portion of the flat heat transfer portion 2. [

A pair of front and rear upper frames 12 and a pair of front and rear element upper support frames 13 are arranged below the upper body 1A of the apparatus body. Then, the upper panel 11 was attached to the front and rear upper frames 12 so as to hang it.

The front panel 10, the front and rear upper frames 12, and the front and rear element upper support frames 13 each have opposite ends connected to the left and right side frames 9, respectively.

As shown in Figs. 1, 2, 4 and 8, the outer periphery of the device body lower case 1B is composed of a front panel 14, a rear upper panel 15 for receiving the lower end of the closing plate 6 A lower end portion of the back panel 7, and a lower end portion of the left and right side panels 8, respectively.

The rear extending projection 14a of the front panel 14 in the instrument body lower case 1B (i.e., the flat elongated projection 14a of the front body panel 1B) A plurality of lower notches 14b serving as insertion holes through which the lower end portions of the respective heat transfer elements 3 are inserted are formed in a wave shape in a left-right direction in a portion forming the bottom surface of the heat transfer portion 2 .

On the other hand, the rear upper panel 15 is formed with the engaging projections 15a for engaging with the apexes of the corrugated portions in the rearward extending projection 14a.

The upper portion 14c of the front panel 14 in the apparatus main body lower case 1B was set in an inclined posture in which the upper portion 14c was backwardly moved backward. The inclined portion 14c forms the upper surface portion of the instrument body lower case 1B together with the rear extending projection 14a that follows.

That is, by providing the inclined portion 14c as described above on the upper surface portion of the lower main body 1B of the apparatus body, it is possible to smooth out the cooling air from the lower portion of the flat heat conductive portion 2 during the cooling operation, So that the entrained inflow of indoor air into the lower portion of the flat heat transfer portion 2 is smoothly performed at the time of operation.

That is, the inclined portion 14c of the front panel 14 of the apparatus main body lower case 1B constitutes the airflow guide surface with respect to the lower portion of the flat heat transfer portion 2.

A pair of front and rear lower frames 16 and a pair of front and rear element lower support frames 17 above the device body lower case 1B are arranged in the device body lower case 1B. The front panel 14, the rear upper panel 15, the front and rear lower frames 16, and the front and rear element lower support frames 17 each have both ends connected to the left and right side frames 9, respectively.

In the interior of the device body lower case 1B, between the front and rear lower frames 16 and the front and rear element lower support frames 17 located above the lower frame 16, A drain pan 18 for receiving condensation water is disposed.

A drain pump 20 for discharging the dew condensation water received in the drain pan 18 to the outside through the drain pipe 19 is built in the device main body lower case 1B.

A base 21 is attached to the lower surface of the lower main body case 1B. That is, the indoor unit 1 is installed in the room via the base 21. [

As shown in Figs. 3, 4, 9, and 10, a pair of front and rear element lower support frames 17, which are disposed in the apparatus main body lower case 1B, Shaped frame member having a substantially L-shaped cross section.

The front and rear element lower support frames 17 are arranged in a line-symmetrical posture in which the inner side portions in the L-shaped transverse cross-sectional shape as viewed from the side face each other and the respective side portions 17a are substantially horizontal .

The front and rear element lower support frames 17 are arranged in a parallel posture in which the gap S1 is formed therebetween in this line-symmetric posture.

A resin drain receiving mechanism 22 of a shallow bowl shape extending in the left and right direction is attached to the one side portion 17a of the horizontal posture in each element lower support frame 17 so as to straddle the front and rear side portions 17a And is hollowed with a pair of leg portions 22C formed on the lower surface of the drain pan 22.

The drain receiving mechanism 22 is formed of a resin (ABS resin in the present embodiment) that is a lower heat-conductive material than the metal material constituting the element lower support frame 17.

The number of condensation drips from each of the heat transfer elements 3 is set at a portion of the bottom portion 22A of the drain receiving mechanism 22 which is located at the front and rear center portions and in the lengthwise direction And a common slit-shaped drain port portion 22a for guiding the drainage to the side of the drain pan 18 is formed.

Further, on the lower surface of the bottom portion 22A of the drain pan 22, there is formed a drain box portion 22D of an angular shape communicating with the drain hole portion 22a.

The slit-shaped drainage cylinder portion 22D of the drainage receiving mechanism 22 is connected to the drainage receiving mechanism 22 in the horizontal posture of the element supporting frame 17, And inserted from the upper side into the gap S1 between the element lower support frames 17 in a fitting state to face the lower drain pan 18 from the upper right chamber.

The drainage tube portion 22D of the drain receiving mechanism 22 has a side edge portion 17a which is bent downward along the side of the gap S1 at one side portion 17a of the horizontal posture of the front and rear element lower support frames 17 17e.

That is, the drain receiving mechanism 22 stops the dew condensation water flowing down from the surface of the heat transfer element 3 from the drain receiving mechanism 22 and stops the dew condensation operation to the front and rear element lower support frames 17 And is guided to the drain pan 18 without making contact.

The heat transfer element 3 is placed on the bottom of the resin drainage mechanism 22 so that the lower end thereof is received and supported by the front and rear element lower support frames 17 via the drainage receiving mechanism 22 have. In this support, the lower side bend tube 4c, which is a projecting heat transfer tube from the lower end of the heat absorption element 3, has a slit-shaped drainage tube portion 22D of a drainage receiving mechanism 22 having an opening width larger than the outer diameter thereof Contact state from above.

The lower end of the heat transfer element 3 is fixedly connected to the front and rear element lower support frames 17 by an element fixing screw 23 as a fixture in a state where the lower end of the heat transfer element 3 is placed on the drain receiving mechanism 22.

The element fixing screw 23 has a through hole 17f formed in the one side portion 17a of the front and rear element lower support frames 17 and a through hole 22h formed in the leg portion 22C of the drain receiving mechanism 22. [ ) From below. The front end side of the element fixing screw 23 is screwed to the lower end portion of the fixture insertion hole 3f in the heat absorption element 3 so that the lower end of the heat transfer element 3 is fixed to the front and rear element lower support frames 17).

That is, the lower bend tube 4c and the heat transfer element 3 are not directly brought into contact with the front and rear element lower support frames 17, The heat transfer element 3 is supported by the front and rear element lower support frames 17 in a state in which the heat transfer element 3 is not applied.

As a result, condensation is prevented from occurring on the surface of the element lower support frame 17 accompanying the cooling of the heat transfer tube 4 and the heat transfer element 3 as much as possible. Further, the integral weight of the meandering heat transfer tube (4) and the plurality of heat transfer elements (3) is stably supported at a sufficient strength without difficulty.

As shown in Figs. 9 and 11, the bottom portion 22A of the drain receiving mechanism 22 is formed into a rectangle-shaped outline with rounded corners where the corners of the four corners are formed in an arcuate shape. A side wall portion 22B is integrally formed around the bottom portion 22A.

The upper surface of the bottom portion 22A of the drain receiving mechanism 22 also has a belt-like seating surface 22b along a plurality of longitudinal directions contacting the lower end surface of the electrothermal heating element 3, A plurality of flow guide grooves 22d for guiding the dew condensation water flowing down from each of them to the slit-shaped drain port portion 22a along the longitudinal direction are alternately arranged along the longitudinal direction of the drain pan 22.

The leg portion 22C of the drain receiving mechanism 22 is constituted by an annular leg plate 22e, a reinforcing plate 22f and a reinforcing cylindrical body 2g as shown in Fig.

The annular leg plate 22e is integrally formed on the bottom surface of the bottom portion 22A in a state of forming an annular rectangular space between the annular leg plate 22e and the outer peripheral surface of the drain tube portion 22D. The reinforcing plate 22f and the reinforcing cylindrical body 2g are integrally formed at a plurality of locations between the inner circumferential surface of the annular leg plate 22e and the outer circumferential surface of the drain tube portion 22D.

4 and 10, in a state where the leg portion 22C of the drain receiving mechanism 22 is in contact with a part of the upper surface of the one side portion 17a of the front and rear element lower support frames 17, A space S4 is formed between the lower surface of the bottom portion 22A of the drain receiving mechanism 22 other than the contact portion and the upper surface of the one side portion 17a of the element lower support frame 17. [ In other words, the presence of the space S4 can more effectively suppress the propagation of cold and heat from the heat transfer element 3 to the element lower support frame 17. [

The front and rear widths of the drain receiving mechanism 22 are larger than the maximum forward and backward widths (maximum forward and backward widths of attachment) of the front and rear element supporting frames 17 in the forward and backward widths of the lower end face of the heat transfer element 3 and in the attached state . The lateral length of the drain pan 22 is set to be slightly longer than the parallel arrangement of the heat transfer elements 3. [

The front and rear widths of the drain pan 18 are larger than the front and rear widths of the arrangement regions of the front and rear element lower support frames 17. The tip end refracting portion 17c of the other side edge portion 17b in the L-shaped cross section of the front and rear element lower support frames 17 is arranged on the lower side of each element lower support frame 17 in the above- And the lower side was inclined posture to the front and back side.

The heat transfer tube 4 and the heat transfer element 3 can be separated from the dew condensation water from the heat transfer element 3 received in the drain pan 18 through the drain tube portion 22D of the drain receiving mechanism 22. [ Even if dew condensation occurs on the surface of the element lower support frame 17 following cooling, the number of dew condensation on the surface of the frame is adjusted to the tip end refraction portion (inclination) of the inclined posture in the other side portion 17b of each element lower support frame 17 17c so as to be surely received into the inside of the drain pan 18.

3, 5, and 9, a pair of front and rear element upper support frames 13 arranged on the upper body 1A of the device body are also formed in the same manner as in the element lower support frame 17, And is formed into a substantially L-shaped frame member. These front and rear element upper support frames 13 are formed such that the inner portions in the L-shaped cross-sectional shape as viewed from the side are opposed to each other, and the distal end refraction portion 13c in each of the other side portions 13b is substantially horizontal As shown in Fig.

Further, the front and rear element upper support frames 13 are arranged in a parallel posture in which the gap S2 is formed therebetween in this line-symmetric posture. The upper end of the heat transfer element 3 is inserted from above into the gap S2 having an opening width larger than the outer diameter of the upper bend tube 4b which is a projected heat transfer tube from the upper end thereof.

The upper end of the heat transfer element 3 is opposed to the distal end refracting portion 13c of the other side edge portion 13b of the upper element supporting frame 13 from below. Further, a flexible gap S3 is provided between the upper end of the heat transfer element 3 and the lower end of the distal end refracting portion 13c.

Further, the upper end of the heat transfer element 3 is fixed to the upper and lower element supporting frames 13 by the element fixing pins 24 as fixing members. The element fixing pin 24 passes through the front end refraction portion 13c of the front and rear element upper support frames 13 from above.

The front end side of the element fixing pin 24 is inserted into the upper end of the fixing hole insertion hole 3f in the moisture absorption element 3 so that the upper end of the element upper support frame 13 before and after the upper end of the heat transmission element 3 Respectively.

That is, the upper bend tube 4b and the moisture absorption element 3 are not directly brought into contact with the upper element supporting frame 13, The upper end portion of the heat transfer element 3 is supported by the front and rear element upper support frames 13 in a state in which a supporting load (in particular, load having a horizontal component) is not applied to the heat transfer element 4b.

This minimizes condensation on the surface of the element upper support frame 13 accompanying the cooling of the heat transfer tube 4 and the heat transfer element 3. In addition, the integral weight of the meandering heat transfer pipe (4) and the plurality of moisture absorption and heating elements (3) can be reliably and stably supported.

The other side edge portions 13b in the L-shaped transverse cross-sectional shape of the front and rear element upper support frames 13 are positioned on the lower side of each element upper support frame 13 in the above-mentioned line-symmetrical arrangement, Except for the distal end refracting portion 13c, which is located on the lower side.

Thus, even if condensation occurs on the surface of the element upper support frame 13 due to the cooling of the heat transfer tube 4 and the heat transfer element 3, the number of dew condensation on the surface of the element can be reduced in the upper support frame 13 And is moved downward in a state of being inclined to the inner side of the farthest position, that is, the state of being received by the drain receiving mechanism 22 is ensured.

In the above element supporting structure, the element fixing screw 23 and the element fixing pin 24 prevent displacement of the heat transfer element 3 in the horizontal direction and rotation about the vertical axis. The lower end of the heat transfer element 3 is connected to the element lower support frame 17 by the element fixing screw 23 to prevent the heat transfer element 3 from floating.

The upper end of the heat transfer element 3 is opposed to the tip end refraction portion 13c of the upper element supporting frame 13 in a state in which there is a flexible gap S3 and the upper end of the heat transfer element 3 is inserted The thermal expansion and contraction of the heat transfer element 3 due to cooling and heating is performed by the element fixing pin 24 fixed to the element upper support frame 13 by inserting the element fixing pin 24 into the hole 3f, The fixing pin 24 and the fixture insertion hole 3f are allowed to slide relative to each other in the longitudinal direction.

As a result, thermal expansion and contraction (particularly heat expansion) of the heat transfer element 3 is caused, and an excessive load is prevented from acting on each frame.

The pair of front and rear upper frames 12 is formed of a frame material having a C-shaped guide groove 12a having an upwardly opened cross-sectional shape upwardly. The upper frame 12 is arranged such that the opening of the guide groove 12a extends along the side edge of the upper panel 11 in the appliance upper frame 1A.

That is, when the indoor unit 1 is disposed along the rear wall surface K, the guide groove 12a follows the wall surface K on the rear side.

As shown in Figs. 1, 5, and 15, the bolt heads of one bolt 25 are engaged with the guide grooves 12a of the upper side frame 12 on the rear side. By this engagement, the bolt 25 is freely slidable in the left-right direction along the guide groove 12a by the guide groove 12a as a slide member.

Further, the bolt 25 as the slide member is prevented from disengaging and rotating from the guide groove 12a by engagement of the bolt head with the guide groove 12a.

The bolt 25 is connected to the L-shaped cross section of the conduction belt 27 by a nut 26. The opening edge portion of the guide groove 12 is held by the bolt head of the bolt 25 and the nut 26 when the nut 26 is tightly fastened to the bolt 25 by the fixing operation, The slide movement of the slide member 25 becomes impossible. That is, by this fixing operation, the bolt 25 as the slide member and the conductive projection 27 connected to the bolt 25 are fixed to the upper frame 12.

16 (b), the conductive projection 27 has a horizontal portion 27a, which is a connecting portion to the bolt 25, and a vertical piece portion bent at right angles to the horizontal portion 27a And a pair of tongue pieces 27c bent at right angles to the side opposite to the longitudinal piece 27b with respect to the lateral piece 27a on the left and right sides of the lateral piece 27a.

Fig. 16A shows the conductive projection 27 before molding to bend the vertical piece 27b and the pair of tongues 27c at right angles to the horizontal piece 27a.

A screw hole 27d having a long elongated hole shape in the front-rear direction for inserting the bolt 25 is formed in the horizontal piece portion 27a. The position of the conductive projection 27 with respect to the wall surface K can be finely adjusted with respect to the longitudinal direction by the movement of the conductive projection 27 with respect to the bolt 25 within the length range of the screw hole 27 do.

In addition, three threading holes 27e are formed in the vertical thread 27b. The screw 27f is fastened to the wall surface K through the screw hole 27e to connect and fix the conductive projection 27 to the wall surface K. [

The pair of tongue pieces 27c are in sliding contact with the opening edge portions of the guide groove 12a in the sliding movement of the bolt 25 and the conductive projection 27. [ By this sliding contact, the conductive spacer 27 is maintained in a posture in which the longitudinal piece 27b faces the wall surface K (i.e., a proper connecting posture with respect to the wall surface K).

Even when the nut 26 is fastened to the bolt 25 by the fixing operation, the pair of tongues 27c contact the opening edge portion of the guide groove 12a, By preventing the rotation, the conductive spacer 27 is maintained in a proper connecting posture with respect to the wall surface K. [

That is, by this, the position adjustment operation for slidingly moving the conductive spacer 27 and the fixing operation by the nut 26 can be facilitated.

That is, when the conduction belt 27 is connected to the wall surface K, the bolts 25 as the slide members and the lateral movement of the conduction belt 27 cause the conduction belt 26 (27). Thereafter, the bolts 25 and the conductive projections 27 are fixed to the upper frame 1 by the fixing operation, and the conductive projections 27 are fixed to the wall surfaces K by screws 27f Connect. As a result, the conduction of the indoor unit 1 due to an earthquake or the like can be effectively prevented.

In addition, the following structure may be adopted as another embodiment of the conductive spacer 27.

A pair of tongue pieces 27c in an attitude orthogonal to the wall surface K may be provided on the left and right sides of the horizontal piece portion 27a as shown in Fig.

As shown in Fig. 18, the horizontal piece portion 27a is formed into a branched shape having two front end portions. A screw hole 27d may be provided in each of the two tip portions and a tongue 27c in a posture along the wall surface K may be provided between the two tip portions.

As shown in Fig. 19, tongue pieces 27c may be formed on the left and right sides of the screw hole 27d in the horizontal piece 27a in a cut-out shape or the like.

On the other hand, as shown in Fig. 4, the pair of front and rear lower frames 16 are formed of a frame material having a C-shaped engaging groove portion 16a opened downward in cross-sectional shape. The lower frame 16 is provided with a base connection bolt 28 for preventing the release and rotation of the lower frame 16 by inserting a bolt head into the engagement groove portion 16a and a nut 29 to connect the base 21.

The upper frame 12 and the lower frame 16 having the C-shaped engagement grooves 12a and 16a in cross section are formed by a common frame member. That is, the common frame member having the engaging grooves 12a and 16a is used in such a manner that the engaging grooves 12a and 16a are positioned in the upper portion of the frame, The common frame material is used for both the upper frame 12 and the lower frame 16. [

Likewise, the L-shaped element upper support frame 13 and the lower element support frame 17 in cross section are formed by a common frame member. That is, a common frame member having an L-shaped cross section is divided into a state in which the one side portions 13a and 17a in the L-shaped cross section form a horizontal posture and a state in which the other side portions 13a and 17b in the L- 13c, and 17c are used in different postures in a state in which they are in a horizontal posture, the common frame material is also used for the upper element supporting frame 13 and the lower element supporting frame 17. [

That is, by using the common frame material in this way, the number of necessary kinds of frame members is reduced, thereby reducing the manufacturing cost of the indoor unit 1. [

As shown in Figs. 2, 3, and 4, a box-shaped molded heat insulating material 30 as a gap filling material is filled in the inside of the device body lower case portion 1B. A housing portion 30a (that is, a housing space) for housing the element lower support frame 17 and the drain pan 18 is formed in the molded heat insulating material 30.

The outer shape of the molded heat insulating material 30 is formed to conform to the inner surface of the front panel 14 of the instrument body lower case 1B and the inner surface of the back panel 7. [

Further, the molded heat insulating material 30 is divided into the front split portion 30A and the rear split portion 30B. The front split portion 30A is attached to the inner surface of the front panel 14 of the instrument body lower case 1B. The rear split portion 30B is attached to the inner surface of the lower end portion of the back panel 7 of the instrument body lower case 1B.

That is, when the indoor unit 1 is assembled, the front panel 14 and the back panel 7 of the apparatus main body lower case 1B are assembled to form the molded heat insulator 30 in the apparatus main body lower case 1B Charging equipment.

Specifically, as shown in Figs. 4, 13, and 14, a partitioning portion 30c and a drain receiving mechanism 22 (see Fig. 2), which are positioned between the lower ends of the heat transfer element 3, And an upper closing portion 30b which is in a state in which the upper closing portion 30b is inserted between the upper surface of the lower case portion 1B and the inner surface of the apparatus main body lower case portion 1B.

These upper occlusion portions 30b prevent the descending cold air from the flat heat transfer portion 2 made up of the group of heat transfer elements 3 from intruding into the inside of the apparatus main body lower case 1B.

The lower half 30d of the accommodating portion 30a in the molded thermal insulating material 30 is in a shape to be in close contact with the outer surface of the drain pan 18. [ That is, it is possible to prevent the condensation on the outer surface of the drain pan 18 from being caused by the close contact of the lower half 30d with the drain pan 18, Thereby reducing the dripping noise of the condensation water.

A mounting concave groove 30e for receiving the flange-shaped upper edge 18a of the drain pan 18 is formed on the upper edge of the lower half 30d of the accommodating portion 30a.

A gap portion 30f for disposing the drain pump 20 and the drain pipe 19 is formed on the lower side of the inside of the molded thermal insulating material 30. [ That is, by covering the drain pump 20 and the drain pipe 19 with the molding heat insulating material 30, the drain sound accompanying the operation sound of the drain pump 20 due to the sound insulating action or the sound absorbing action by the molding heat insulating material 30 Small.

Through holes 30h for penetrating right and left side portions of the lower frame 16 and through holes 30h for passing the left and right sides of the drain pan 18 are formed on both right and left side portions of the molded heat insulating material 30 And the storage portion 30a.

A pair of protrusions 30k and a pair of protrusions 30k extending in the transverse direction are provided at the lower ends between the joint surfaces of the split portions 30A and 30B on the lower side of the molded thermal insulating material 30, Respectively.

That is, the molded heat insulating material 30 is attached to the inside of the instrument body lower case 1B so that the molded heat insulating material 30 is brought into close contact with the inner surface of the instrument body lower case B and the outer surface of the drain pan 18, And the internal equipment of the device body lower case 1B is covered with the molded heat insulating material 30. Thus, the falling cold air from the flat heat conductive portion 2 is prevented from entering the inside of the lower main body case 1B of the apparatus body.

By doing so, it is possible to prevent the occurrence of condensation on the outer surface of the front panel 14 and the occurrence of condensation on the outer surface of the lower end portion of the back panel 7 in the device body lower case 1B caused by the cold air intrusion. Also, it is possible to prevent condensation from occurring on the outer surface of the drain pan (18), and to silence the sound generated from the equipment in the lower case (1B) of the apparatus body.

As shown in Fig. 6, the molded insulating material 31 was filled in the interior of the right and left instrument body side frames 1C in a state interposed between the side panel 8 and the side frame 9. The outer shape of the molded heat insulating material 31 has a shape conforming to the inner surface of the side panel 8 and the outer surface of the side frame 9. By the equipment of the molded heat insulating material 31, the occurrence of condensation on the outer surface of the side panel 8 is prevented.

Between the inner porcelain layer 6a on the inner surface side of the left and right side plate portions 6A of the closing plate 6 and the inner side surfaces of the side frame 9 close to the inner surface porcelain layer 6a, The heat insulating material layer 6b is interposed. As a result, the cold and heat conduction to the side frame 9 is suppressed.

9, both end portions of the pair of front and rear element lower support frames 17 are connected to the side frame 9 in a state in which a resin insulating spacer 32 is interposed therebetween Is connected to the side frame (9). As a result, the cold and heat conduction from the element lower support frame 17 to the side frame 9 is suppressed, and the generation of condensation at the side frame 9 and the generation of condensation at the outer surface of the side panel 8 It is surely prevented.

A notch 31a for inserting the pipe extending in the vertical direction is formed in the molded heat insulating material 31 in the right and left instrument body side molds 1C. The movable refrigerant pipe 5a connected to one end of the meandering heat transfer pipe 4 at the lower portion of the flat heat transfer portion 2 is provided with a notch 31a for inserting the pipe in the left and right instrument body side frame 1C, To the upper body 1A of the apparatus body.

The drain pipe 19 from the drain pan 18 is also guided to the upper body 1A of the appliance body through the notch 31a for inserting the pipe in the left and right side case portions 1C.

That is, the refrigerant pipe 5a and the drain pipe 19 are connected to the other end of the meandering heat transfer pipe 4 at the upper portion of the flat heat transfer portion 2, The three tubes of the moving refrigerant tube 5b are extended and projected out of the instrument body upper frame 1A in a state in which they are collected. As a result, the three pipes 5a, 5b, and 19 can be extended and projected outdoors by using through-holes for pipes in the upper portion of the seal wall used in a general wall-mounted type air conditioner.

Further, when the through holes for piping in the lower portion of the seal wall can be ensured, the above three pipes (5a, 5b, 19) may be extended and protruded through the through holes for the pipes under the seal wall.

As shown in Figs. 3 and 5, on the inner surface of the upper end of the back panel 7, which serves as the rear panel of the instrument body upper frame 1A, a heat insulating material layer 6b were attached.

As shown in Fig. 1, the instrument body upper frame 1A is provided with an operation lamp or an abnormality lamp provided in the front panel 10 for turning on and off the remote controller originating signal received by the receiving section provided on the front panel 10 And the like.

4 and 20, a strainer 34 for collecting foreign matter such as dust in the drain water discharged to the drain pipe 19 is connected to the drain pan 18 as a drain pan deep bottom portion (deep bottom portion, (That is, the connection portion of the drain pipe 19).

The drain pan 18 is provided with a first float switch and a second float switch 35a that are turned on and off according to a change in the water level in the drain pan 18 as the water level detecting means for detecting the water level in the drain pan 18 And 35b are separately provided at the deep bottom portion 18a of the drain pan 18 and at the bottom portion near the deep bottom portion 18a.

The controller 33 also performs draining control such as operating / stopping the drain pump 20 based on the on / off operation of the float switches 35a and 35b as draining control means.

20 and 21), the first float switch 35a is turned on when the water level in the drain pan 18 becomes equal to or higher than the set drainage water level L1. The first float switch 35a is turned off when the water level in the drain pan 18 becomes lower than the set drainage level L1.

Likewise, the second float switch 35b is turned on when the water level in the drain pan 18 becomes equal to or higher than the set upper water level L2. The second float switch 35b is turned off when the water level in the drain pan 18 becomes lower than the set upper limit water level L2.

In a situation in which the drainage of the drainage fan 18 is properly discharged due to the operation / stop of the drain pump 20 based on the on / off operation of the first float switch 35a, the second float switch 35b is turned on The set upper limit water level L2 is higher than the set water drainage level L1.

Specifically, the controller 33 performs the following control operation based on the on / off operation of the float switches 35a and 35b (see Figs. 20 to 22).

When the water level in the drain pan 18 rises to the set drainage level L1 and the first float switch 35a is turned on, the controller 33 starts operation of the drain pump 20. Thereby, drainage from the drain pan 18 is started.

When the water level in the drain pan 18 becomes lower than the set drainage level L1 due to the start of draining and the first float switch 35a is turned off, the controller 33 starts counting the set draining time T1 . At this time, the controller 33 stops the operation of the drain pump 20 when the set drainage time T1 has elapsed from the time of the OFF operation of the first float switch 35a. As a result, drainage from the drain pan 18 is stopped.

That is, in the cooling operation, the dew condensation flows into the drain pan 18 continuously, while the intermittent operation of the drain pump 20 based on the on / off operation of the first float switch 35a , The water level in the drain pan 18 is maintained lower than the set upper limit water level L2 which is the on-off water level of the second float switch 35b.

On the other hand, when the water level in the drain pan 18 exceeds the set drainage level L1 and reaches the set upper limit water level L2 for some reason, and thus the second float switch 35b is turned on, the controller 33 The operation of the compressor is stopped and the circulation of the refrigerant R is stopped in a state in which the operation of the drain pump 20 is continued by the ON operation of the first float switch 35a (that is, the cooling operation is stopped do). Thereby, a new generation of condensation water in the flat thermal insulation part 2 is stopped.

Thereafter, when the water level in the drain pan 18 is lower than the set upper limit water level L2 by the operation of the drain pump 20 in the cooling operation stop state and the second float switch 35b is turned off, (33) starts counting the set maintenance time (T2). When the set conservation time T2 elapses from the time point when the second float switch 35b is turned off in this timing, the controller 33 determines that the water level in the drain pan 18 has risen to the set drainage level L1 The operation of the drain pump 20 is stopped.

That is, the drain pump 20 is operated while the cooling operation is stopped while reliably draining a large amount of the stored water in the drain pan 18 by the operation of the drain pump 20 over the set maintenance time T2. Thereby avoiding driving more than necessary.

The controller 33 also controls the operation of the drain pump 20 in accordance with the on / off operation of the drain pump 20 based on the on / off operation of the first and second float switches 35a and 35b, Starts to count the set time limit T3 every time the start of the operation. When the operation of the drain pump 20 continues until the set time limit T3 elapses at the time of the set time limit T3, the operation of the drain pump 20 is terminated abnormally, The operation of the drain pump 20 is forcibly stopped at a point of time when the set time limit T3 has elapsed from the starting point.

Also, the set time limit T3 is set to a time significantly longer than the setting time Tl or the set time T2.

The set conservation time T2 includes a drainage amount by the operation of the drain pump 20 including drainage of residual condensation water flowing into the drain pan 18 even after the second float switch 35b is turned off, The water level in the drain pan 18 is lower than the water level at the drainage port portion of the drain pan 18 from the water level at the start of the set maintenance time T2 To the vicinity of the bottom of the deep bottom portion 18a).

In this example, as the set drainage time T1, the water level in the drain pan 18 is drained by the operation of the drain pump 20 from the water level at the time of the off operation of the first float switch 35a Similarly, the time required to drop to the drain port portion of the drain pan 18 (in the vicinity of the bottom surface of the drain pan deep bottom portion 18a) was set.

The capacity of the drain pan 18 is set such that the total amount of residual condensed water flowing into the drain pan 18 after the compressor is stopped due to the ON operation of the second float switch 35b (Including the water quantity already in the drain pan 18 at the time of the on-operation of the heat exchangers 35a and 35b). Thus, even when the cause of the drainage failure is the drain pump 20 itself, it is possible to reliably avoid the leakage trouble from flowing over the drainage water from the drainage fan 18.

The drain pump 20 uses a pump having a check valve function. Thereby, backward flow of drain water from the drain pipe 19 toward the drain pan 18 is prevented.

20, the drain pipe 19 is formed with a pocket piping portion 19a extending downward from the drain port portion of the drain pan 18 and extending upwardly therefrom. The drain pump 20 is mounted at a position lower than the deep bottom portion 18a of the drain pan 18 and interposed in the pocket piping portion 19a .

That is, this pump arrangement is used to set the set drainage time T1 as described above, and also to set the drainage pump 20 to operate in a cooperative manner (that is, To prevent the pump from operating in a non-operating state).

In the present embodiment, the flat heat transfer portion 2 is exposed only in front of the indoor unit 1, but the flat heat transfer portion 2 is not provided in the indoor unit 1 And may be exposed to both the front and rear sides. In this case, it is possible to simultaneously perform cooling and heating by the outflow of cold air or outflow of air from the flat heat conductive part 2 in the front indoor area and the rear indoor area of the indoor unit 1.

(Another embodiment of the first embodiment)

Any one of the following arrangements may be employed in place of the apparatus configuration of the first embodiment described above.

Instead of the refrigerant used in the heat pump, the fruit R to be passed through the heat transfer pipe 4 may be cold water, brine, ice water slurry, hot water, steam or the like.

The rear plate portion 6A and the side plate portion 6B may have a multilayer structure of three or more layers instead of the two-layer structure of the heat-shine porcelain layer 6a and the heat insulating material layer 6b.

Instead of covering the entire rear portion of the flat heat transfer portion 2 with the rear plate portion 6A, a part of the rear portion of the flat heat transfer portion 2 may be made of a member other than the back plate portion 6A or may be opened with a part thereof as a gap.

Similarly, instead of closing the entire side surface of the flat heat transfer portion 2 with the side plate portion 6B, a part of the side surface portion of the flat heat transfer portion 2 may be made of a member other than the side plate portion 6B, or may be opened as a gap.

The upper end portion of the heat transfer element 3 in the vertical posture constituting the flat heat transfer portion 2 is formed in a state of allowing the heat elongation and contraction in the vertical direction by the engagement structure or the fitting structure other than the pin, 13).

The upper end portion of the heat transfer element 3 in the vertical posture is fixed to the upper element supporting frame 13 by an elastic member such as a coil spring or a columnar rubber material, May be allowed to expand or contract.

The upper supporting frame 13 can be moved up and down by means of a connection structure in which both ends of the upper supporting frame 13 are inserted into the elongated holes formed in the side frame 9, The thermal expansion and contraction in the vertical direction may be allowed.

The cross-sectional shape of each of the element lower support frame 17 and the element upper support frame 13 is not limited to the cross-sectional shape shown in the first embodiment, and various modifications are possible.

A plurality of drain ports 22a for guiding the condensed water flowing down from each heat transfer element 3 separately to the drain pan 18 may be formed.

A separate drain receiving mechanism 22 may be disposed between the element lower support frame 17 and the lower end of each of the plurality of heat transfer elements 3, respectively.

The cross-sectional shapes of the drain pan 22 and the drain pan 18 are not limited to the cross-sectional shapes shown in the first embodiment, and various modifications are possible.

The drain receiving mechanism 22 is not limited to a resin but may be a resin film formed by a suitable means such as resin coating on a low heat conductive metal, ceramic or metal.

The gap filling material for preventing the inflow of cold air falling from the flat heat transfer portion 2 may be disposed only at the upper portion of the apparatus main body lower case 1B.

Also, the gap filling material may be a sheet-like or putty-shaped heat insulating material.

The specific structure of the element lower support frame 17 supporting the lower end portion of the heat transfer element 3 can be variously modified as well as the structure shown in the first embodiment.

The controller 33 serving as the drainage control means stops the cooling operation by stopping the compressor when the water level in the drain pan 18 rises to the set upper limit water level L2 and the second float switch 35b is turned on, , The operation of starting the operation of the drain pump 20 is tried again, and the timing of the set maintenance time (T2) is started with this attempt. Thereafter, the second float switch 35b is turned on The operation of the drain pump 20 may be stopped at the point of time when the set maintenance time T2 has elapsed from the operating point of time (see FIG. 23).

Also, in this case, the set maintenance time T2 is set to a value equal to or greater than the set upper limit lower limit L3 after the cooling operation is stopped, (Including the stored water existing in the drain pan 18 at the time point when the 2 float switch 35b is turned on) is drained from the drain pan 18 by the operation of the drain pump 20 .

As the level detecting means for the drain pan 18, various detection methods such as an electrode type or a pressure type can be adopted.

When the water level in the drain pan 18 has risen to the set upper water level L2, the controller 33 may be notified of the occurrence of the abnormality with the cooling operation stopped.

In the columnar space portion between the side frame 9 on the left and right one side and the side panel 8 with respect to the side frame 9 on the left and right sides, The drain pump 20 may be disposed.

In this case, a defective portion for accommodating the drain pump 20 is formed in the arrangement position of the drain pump 20 in the column-shaped molded heat insulating material 31 in the left and right instrument body side molds 1C.

That is, when the drain pump 20 is disposed in the lower space portion of the drain pan 18, the noise of the pump operation sound of the molding heat insulating materials 30 (30a, 30b) surrounding the drain pump 20, Effect can be expected. On the other hand, the pump operation sound is confined in the lower space portion of the drain pan 18, and the molded thermal insulating materials 30 (30a, 30b) are oscillated with the operation of the drain pump 20, Therefore, there is a possibility that the acoustic uncomfortable feeling accompanying the operation of the drain pump 20 may be reduced to the user.

On the other hand, when the drain pump 20 is disposed in the columnar space between the side frame 9 and the side panel 8 as described above, it is possible to effectively avoid the acoustical discomfort caused by the trapping of the pump operation sound can do.

The flat heat transfer portion 2 may be configured not only by juxtaposing the heat transfer elements 3 passing through the heat transfer tubes 4 but also by bringing the heat transfer tubes 4 into close contact with the plate heat transfer elements in the vertical posture. Various modifications of the specific structure of the flat heat transfer portion 2 are possible.

(Second Embodiment)

Figs. 24 to 32 show a second embodiment of the indoor unit 1. Fig. The same functional parts as those of the indoor unit 1 of the first embodiment are denoted by the same reference numerals as those used in the first embodiment, and detailed description thereof is omitted.

In the indoor unit 1 of the second embodiment shown in Fig. 24, the rear surface portion and the side surface portion of the flat heat transfer portion 2 constituted by the juxtaposed groups of the heat transfer elements 3 in the vertical posture are closed by the closing plate 6 The air inlet portion 47 for introducing the air IA from the rear side into the arrangement portion of the flat heat transfer portion 2 in the heating operation is provided as a typical example in Figs. 25, 29, And is provided at an intermediate portion in the vertical direction of the rear plate portion 6A in the occluding plate 6. [

That is, in the heating operation, due to the attracting action by the ascending draft (DA) of warming caused by the flat heat transfer portion 2 accompanying the heating of the electrothermal heating element 3, And the air IA is introduced into the arrangement portion of the flat heat transfer portion 2.

In forming the air inflow portion 47, the rear plate portion 6A of the closing plate 6 is composed of an upper plate portion 48 disposed on the upper side and a lower plate portion 49 disposed on the lower side . Of these upper and lower plate portions 48 and 49, the upper plate portion 48 which is on the downstream side in the flow direction of the ascending draft DA during the heating operation is located on the rear side of the lower plate portion 49 have.

The lower portion 48b of the upper plate portion 48 and the upper portion 49c of the lower plate portion 49 are overlapped when viewed from the front-rear direction. Namely, in the overlapping portion, a cylindrical gap formed between the lower portion 48b of the upper plate portion 48 and the upper portion 49c of the lower plate portion 49 was used as the air inlet portion 47 .

In other words, as shown in Fig. 29, this air inflow portion 47 is provided with a cylindrical air guide path 47b made of the aforementioned cylindrical gap. The air guide passage 47b is provided with an air outlet 47a opened toward the upper side which is the downstream side of the ascending draft DA.

As shown in Fig. 30, leg portions 48c in the forward direction are formed on the right and left side portions of the upper plate portion 48. As shown in Fig. An attachment piece portion 48d is formed on the tip end side of the leg portion 48c. That is to say, the attachment piece portion 48d is fixed to the side frame 9 by means of a fixture such as a fixing screw so that the flat plate heat transfer portion 2 can be formed in a state in which the upper plate portion 48 is positioned behind the lower plate portion 49, Respectively.

As shown in the enlarged view in Fig. 30, between the attachment piece portion 48d of the leg portion 48c and the side frame 9 and the side plate portion 6B, the upper plate portion 48 and the side frame 9 And a heat insulating material 45 for suppressing the heat conduction between the heat insulating member and the heat insulating member.

25 and 29, the upper end portion of the rear plate portion 6A of the closing plate 6 (that is, the portion on the downstream side in the flow direction of the ascending draft DA as compared with the air inlet portion 47) Is provided with an air outflow portion 43 through which the inflow air IA from the air inflow portion 47 flows out from the arrangement portion of the flat heat transfer portion 2. [ The air outflow portion 43 has an opening shape that is congruent with the tubular air guide path 47b when viewed in a plan view and opens upward.

Furthermore, on both left and right sides of the upper half of the rear plate portion 6A in the closing plate 6, the flat heat transfer portion (heat transfer portion) 2 is provided with an auxiliary air inflow part 44 for introducing the air IA from the side.

Concretely, the auxiliary air inflow portion 44 is composed of two vertically elongated openings 48e formed in each of the left and right leg portions 48c of the upper plate portion 48.

As shown in Figs. 26 and 31, the lower plate 49 is formed by laminating a front heat-shading porcelain layer 49a, a heat insulating material layer 49b and a rear panel 49d. Further, in this lamination, the heat insulating material layer 49b was inserted into the concave surface portion 49e on the back surface side of the heat-shading porcelain layer 49a on the front side.

The lower side plate portion 49 is fixed to the side frame 9 by fixing screws on both left and right side edges of the heat-shading porcelain layer 49a and the back panel 49d to the lower half portion of the rear portion of the flat heat transfer portion 2 Respectively.

As shown in the enlarged view in Fig. 31, the lower side plate portion 48 and the side frame portions 48 are formed between the left and right side edges of the open / close porcelain layer 49a and the side frame 9 and the side plate portion 6B, 9 is interposed between the heat insulating material 50 and the heat insulating material 50. [

32 (a), in the heating operation, of the warm rising drafts DA generated by the flat heat transfer portion 2, the rising drafts DA of the middle portion in the vertical direction, The air IA in the rear space is efficiently introduced into the arrangement portion of the flat heat transfer portion 2 through the air inflow portion 47 of the rear plate portion 6A.

Also, in the air inflow, in the process of passing through the cylindrical air guide path 47b having the upward air outlet 47a as the flow direction of the up draft stream DA, the attracted air IA is rectified , The introduction of the attracting air (IA) into the arrangement portion of the flat heat transfer portion (2) becomes more efficient and further stabilized.

Thereby, not only the influx of the attracting air IA through the auxiliary air inflow part 44 but also the part of the inflow air IA from the air inflow part 47 is heated by the flat heat transfer part 2 The outflow of air from the upper portion of the flat heat transfer portion 2 to the room is effectively promoted and the airflow in the flat heat transfer portion 2 is smoothed out from the upper air flow portion 43. [ Heat exchange of the heat transfer element 3 is also promoted, thereby effectively improving the heating effect.

32 (b), in the cooling operation, since the air outlet 47a in the air inlet 47 is upward, part of the descent draft DA 'during the cooling operation And flows out into the rear space through the air inflow part (47).

At this time, however, by the efficient heat exchange between the descending draft DA 'flowing out through the air inflow portion 47 and the upper side plate portion 48 made of a heat and porcelain porcelain, the downward draft of the descending draft DA' It is possible to efficiently capture the stored cold heat.

As a result, it is possible to effectively prevent the occurrence of condensation on the rear seal wall K, in addition to the heat insulation by the heat insulating material layer 49b provided on the lower side plate portion 49.

(Another embodiment of the second embodiment)

Any one of the following configurations may be employed in place of the apparatus configuration of the second embodiment described above.

The lower side plate portion 49 which is on the downstream side in the flow direction of the descending draft DA 'during the cooling operation is disposed behind the upper side plate portion 48 among the upper side plate portion 48 and the lower side plate portion 49, The lower portion 48b of the upper plate portion 48 and the upper portion 49c of the lower plate portion 49 are overlapped when viewed from the front and rear direction.

In this overlapping portion, a cylindrical gap formed between the lower portion 48b of the upper plate portion 48 and the upper portion 49c of the lower plate portion 49 may be an air inlet portion.

In this case, by introducing the air IA in the rear space through the air inflow portion into the arrangement portion of the flat heat transfer portion 2 due to attraction by the draft draft DA 'during the cooling operation, It is possible to promote the outflow of cold air from the lower portion of the flat heat transfer portion 2 to the room and promote the heat exchange between the heat transfer element 3 and air in the flat heat transfer portion 2. [

As shown in Fig. 33, a plurality of guide blades 35 (at least in the up-and-down direction of the back plate 6) It is also possible to provide a configuration in which the direction in which the air IA is introduced into the element accommodating portion 2 can be changed by changing the posture of the guide vane 35. [

This allows the direction in which the air IA flows from the air inflow section 47 to the flat heat transfer section 2 to be optimized according to the operating conditions of the indoor unit 1 (heating operation, cooling operation, operation output) .

For example, as shown in Fig. 33 (a), in the heating operation, by changing the posture of the guide vane 55, the inflow direction of the air IA is inclined upward, It is possible to smoothly flow the air IA in a state where the temperature of the flat heat transfer portion 2 is small and the outflow of warm air from the upper portion of the flat heat transfer portion 2 to the room can be promoted.

Further, at the time of the cooling operation, by making the direction in which the air IA flows in the downward direction by changing the attitude of the guide vane 55, the air IA flows smoothly in a state of low attraction resistance even in the cooling operation, It is possible to promote the outflow of cool air from the lower part of the unit 2 to the room.

34, an opening / closing door 56 (an example of the inlet opening / closing means, an example of the opening area adjusting means) free to adjust the opening degree for opening and closing the air inflow portion 47 may be provided .

In this way, the opening and closing of the opening / closing door 56 allows the air IA to be drawn from the air inlet 47 to the flat heat conductive part 2 and the air from the air inlet 47 to the flat heat conductive part 2 Can be made optimal in accordance with the operating conditions (heating operation, cooling operation, operation output) of the indoor unit 1, indoor conditions, and the like.

The amount of air flowing into the flat heat transfer portion 2 from the air outflow portion 47 can be controlled by adjusting the opening degree of the opening and closing door 56 to the operating state (heating operation, cooling operation, operation output) And can be optimized according to the situation.

For example, as shown in Fig. 34 (a), the opening / closing door 56 is fully opened during the heating operation and the air inlet 47 is opened due to the draw action by the draft DA during heating. It is possible to flow the air IA from the upper portion of the flat heat transfer portion 2 into the flat heat transfer portion 2 to promote the outflow of warm air from the upper portion of the flat heat transfer portion 2 to the room.

On the other hand, at the time of cooling operation, the open / close door 56 may be closed or partly opened so that the cool air outflow from the lower portion of the flat heat transfer portion 2 may be saved.

In the second embodiment described above, the case where the air inflow portion 47 is constituted by a gap formed between the plurality of plate portions 48 and 49 is described as an example. However, for example, an opening portion or the like .

In the second embodiment described above, the flat heat transfer portion 2 is formed as a concave portion that opens only to the front of the indoor unit 1. However, Or may be opened to the side.

The left and right side plate portions 6B cover the whole of the left and right side portions of the flat heat transfer portion 2. The air inlet portion 47 May be formed as an opening.

In the above-described second embodiment, the case where the front surface of the rear plate portion 6A is made of a glossy surface is shown. However, the front surface of the rear plate portion 6A is not necessarily a glossy surface.

The air conditioner according to the present invention can be used for a variety of applications in various fields.

R fruit
4 heat pipe
2 flat heat transfer parts
18 drain pan
1B Device body Lower case

Claims

There is provided a flat heat transfer portion having a heat transfer tube through which a heat medium passes,
The flat heat transfer portion is arranged in a vertical posture and exposed in a surface-facing state with respect to the air conditioning target region,
(Condensation water) generated in the flat heat transfer portion flows down during a cooling operation for cooling the heat transfer tube by the above-mentioned heat transfer and absorbing the flat heat transfer portion, and a drain fan for receiving the condensation number An air conditioner comprising:
The lower case of the device body is disposed below the flat heat transfer portion,
And the entire drain pan is disposed inside the lower case of the apparatus body.

The method according to claim 1,
And the upper surface portion of the lower case of the apparatus body is made to be inclined posture that becomes lower toward the air conditioning target region.

The method according to claim 1 or 2,
A flat heat transfer portion is constituted by a heat transfer element in a vertical posture made of a heat-resistant porcelain and a heat transfer tube adhered to the heat transfer element,
The lower end of the heat transfer element is inserted into the lower case of the apparatus body through the insertion hole formed in the upper surface of the lower case of the apparatus body,
And the condensed water flowing down along the heat transfer element flows into the drain pan through the insertion hole.

The method according to any one of claims 1 to 3,
An upper frame of the device body in the transverse direction is provided above the flat heat transfer portion,
And the lower surface of the upper frame of the apparatus body is made to be in a higher posture toward the air conditioning target area.

The method according to any one of claims 1 to 4,
A vertical body of the instrument body upper case disposed above the flat heat conductive part, a vertical body body lower case arranged on both sides of the flat heat transfer part, and a vertical posture connecting the lower body of the apparatus body and the upper body of the body of the apparatus And the air conditioning unit surrounds the periphery of the flat heat transfer portion.

The method according to any one of claims 1 to 5,
The front surface portion of the flat heat transfer portion is exposed to the air conditioning target area at the front side,
The rear surface portion of the flat heat transfer portion is closed by the rear plate portion with respect to the rear space,
Wherein the rear plate portion has a multi-layer structure including a front heat-shading porcelain layer on the front side and a heat insulating material layer on the rear side.

The method of claim 6,
Both side portions of the flat heat transfer portion are closed by the side plate portions with respect to the side space,
Wherein the side plate portion has a multilayer structure including a heat-shining porcelain layer on the inner surface side and a heat insulating material layer on the outer surface side.

The method according to claim 6 or 7,
Wherein the front surface of the rear plate portion is a shiny surface reflecting radiant heat.

The method according to any one of claims 6 to 8,
The heat transfer tube is passed through the central portion of the longitudinally positioned heat transfer element made of heat and porcelain in a vertical posture,
A plurality of fin portions extending in the longitudinal direction over substantially the entire length of the electrothermal elements are arranged in the left and right directions on the front surface side and the rear surface side of the heat transfer element,
The heat transfer elements having the heat transfer tubes and the fin portions are juxtaposed in the left and right direction to constitute the flat heat transfer portion,
The fin portions on the front side of each of the heat transfer elements are formed into a fin portion having a longer extending projection length forward as the fin portions located on the left and right center sides of the respective heat transfer elements,
Wherein the bent portions on the rear side of each of the heat transfer elements are formed as a bent portion having the same extending protrusion length to the rear side.

The method according to any one of claims 6 to 9,
An air inflow portion is formed in the upper and lower middle portions of the rear plate portion,
And the air in the rear space flows into the arrangement portion of the flat heat transfer portion through the air inflow portion due to draft caused by the flat heat transfer portion.

The method of claim 10,
The rear plate portion is constituted by an upper plate portion arranged on the upper side and a lower plate portion arranged on the lower side,
A plate portion located on the downstream side in the flow direction of the draft flow out of the upper plate portion and the lower plate portion is disposed behind the plate portion located on the upstream side in the flow direction of the draft flow,
The lower side portion, the lower side plate portion and the upper side portion of these upper side plate portions are arranged so as to overlap each other in the longitudinal direction,
And a gap as the air inflow portion is formed between the lower portion of the upper plate portion and the upper portion of the lower plate portion in the overlapping portion.

The method of claim 11,
Wherein the front plate portion disposed forward of the upper plate portion and the lower plate portion has a multi-layer structure including a heat-shading porcelain layer on the front surface side and a heat insulating material layer on the rear surface side,
Wherein the rear side plate portion disposed rearwardly of the upper plate portion and the lower plate portion is formed by a heat and porcelain material as a whole.

The method according to any one of claims 1 to 12,
The flat heat transfer portion is constituted by the heat transfer element in the vertical posture made of the heat and porcelain material and the heat transfer tube adhered to the heat transfer element,
A pair of element lower support frames for supporting a lower end portion of the heat transfer element in the vertical posture are disposed inside the device body lower case,
The heat transfer tubes projecting from the lower ends of the heat transfer elements are inserted into the gaps between the lower element support frames in a non-contact state with respect to the pair of element lower support frames,
And the lower end portion of the heat transfer element is fixed to each of the pair of element lower support frames in the heat transfer tube insertion state so that the lower end portion of the heat transfer element is supported by the pair of lower element support frames.

14. The method of claim 13,
An instrument body upper frame in the transverse direction is disposed above the flat heat transfer portion,
A pair of upper element supporting frames for supporting the upper ends of the heat transfer elements in the vertical posture are arranged inside the upper body of the device body,
The heat transfer tubes projecting from the upper end of the heat transfer element are inserted into the gaps between the upper support frames in a non-contact state with respect to the pair of upper element support frames,
And an upper end portion of the heat transfer element is fixed to each of the pair of upper element support frames in a state where the heat transfer tube is inserted and passed, whereby the upper end portion of the heat transfer element is supported by the pair of upper element support frames.

15. The method of claim 14,
And the upper end of the heat transfer element is supported by the pair of upper element supporting frames in a state of allowing thermal expansion and contraction in the vertical direction.

The method according to any one of claims 13 to 15,
The drain pan is disposed below the pair of element lower support frames inside the device body lower case,
Wherein a lower surface of each of the pair of lower support frames has an inclined posture that tilts toward the gap between the pair of lower frames as the lower portion thereof is lower.

The method according to any one of claims 13 to 16,
And a drain receiving mechanism for receiving the condensed water flowing down along the heat transfer element and stopping the condensed water and guiding the condensed water to the drain pan is placed on the lower support frame of the element,
And the lower end of the heat transfer element is placed on the drain receiving mechanism and is supported by the pair of lower element supporting frames via the drain receiving mechanism.

The method according to any one of claims 1 to 17,
The flat heat transfer portion is constituted by the heat transfer element in the vertical posture made of the heat and porcelain material and the heat transfer tube adhered to the heat transfer element,
An element lower support frame for supporting a lower end portion of the heat transfer element in the vertical posture is disposed inside the lower case of the device body,
A drain receiving mechanism for receiving and stopping the dew condensation water flowing down along the heat transfer element is disposed between a lower end portion of the heat transfer element and the element lower support frame,
And the drain pan mechanism is configured to guide the dew condensation water to the drain pan so as not to come into contact with the element lower support frame.

19. The method of claim 18,
A leg portion that makes contact with a part of the upper surface of the element lower support frame is provided on the lower surface of the drain receiving mechanism,
And a lower end of the heat transfer element is fixed to the element lower support frame by a fixing screw passing through the leg portion.

The method according to any one of claims 1 to 19,
The flat heat transfer portion is constituted by the heat transfer element in the vertical posture made of the heat and porcelain material and the heat transfer tube adhered to the heat transfer element,
An element lower support frame for supporting a lower end portion of the heat transfer element in the vertical posture is disposed inside the lower case of the device body,
A gap filling material made of a heat insulating material is disposed in the inside of the lower case of the device at least near the upper opening of the lower case of the device body,
Wherein the gap filling member prevents the cool air cooled by the flat heat transfer portion during the cooling operation from flowing into the lower case of the apparatus body.

The method of claim 20,
The gap filling material is formed by joining the front split portion and the rear split portion,
And an accommodating space which is opened by disengagement of the front split portion and the rear split portion is formed in the gap filling portion,
Wherein the equipment body in the lower case of the apparatus body is accommodated in the accommodating space in a state in which the gap filling material is disposed inside the lower case of the apparatus body.

23. The method of claim 21,
The front split portion is brought into close contact with the inner surface of the front panel portion in the lower case of the apparatus body,
And the rear split portion is brought into close contact with the inner surface of the rear panel portion of the lower case of the apparatus body.

The method according to any one of claims 1 to 22,
A drain pump for draining the water from the drain pan through a drain pipe,
A water level detecting means for detecting a water level in the drain pan;
And drainage control means for operating the drain pump when the detected water level by the water level detection means is equal to or higher than the set drainage water level,
The drainage control means starts operation of the drain pump when the detected water level is equal to or higher than the set drainage water level and thereafter starts timing of the drainage set time when the detected water level becomes lower than the set drainage water level,
And then stops the operation of the drain pump when the set drainage time has elapsed.

24. The method of claim 23,
The set drainage time is a time required for the water pump to drop from the water level at the beginning of the set drainage time to the vicinity of the bottom of the drain pan by operation of the drain pump One air conditioner.

The method of claim 23 or 24,
Wherein the water drainage control means stops the cooling operation when the detected water level rises to a set upper water level higher than the set drainage water level.

26. The method of claim 25,
Wherein the water drainage control means starts the timing of the set maintenance time when the detected water level becomes lower than the set upper water level after stopping the cooling operation as the detected water level rises to the set upper water level,
And then stops the operation of the drain pump when the set maintenance time elapses.

27. The method of claim 26,
The set maintenance time is a time required for the water pump to drop from the water level at the start of the set maintenance time to the vicinity of the bottom of the drain pan by the operation of the drain pump One air conditioner.

28. The method according to any one of claims 1 to 27,
A transverse upper body frame for connecting an upper end of the flat heat transfer portion is provided,
A guide groove extending in the left-right direction is formed on the upper surface of the upper body of the apparatus body,
A slide member which is movable in the left and right directions along the guide groove and which can be fixed to the guide groove by a fixing operation is provided,
Wherein the conductive member is attached to the slide member in such a manner that the conductive member can be moved in the left-right direction integrally with the slide member, the conductive member being connectable to the wall positioned at the rear of the device body lower case.