Background technology
As former air regulator, the air regulator (for example, with reference to patent documentation 1-TOHKEMY 2006-250366 communique (Fig. 1, Fig. 3)) that possesses the indoor heat converter that is made of front side heat exchanger and rear side heat exchanger is arranged.The front side heat exchanger of patent documentation 1 record has by three line parts and two curve parts and constitutes and to the structure of fan directional bending.
Utilize Fig. 7 that the fundamental characteristics that flows by this air with heat exchanger of curve part is described.Flowing of air when Fig. 7 represents that the resistance body 37 that the air drag of inside is identical places identical air stream.The resistance body has the curve part that two line parts and two ends are connected in these two line parts as shown in Figure 7.The thick arrow of Fig. 7 is represented the streamline of air, the velocity flow profile of the air stream in thin arrow group 39 expression resistance body downstreams.
Flowing through the air that comes from the left side flows to the right by resistance body 37.Generally, air has the character of selecting shortest path to flow to the pressure lower from the pressure eminence.Therefore, towards the top of the resistance body 37 of upper right shape, in resistance body 37, become to the flowing of bottom right, after resistance body 37 is crossed in this circulation of air at the upstream of resistance body 37 air stream to the right, because still towards the downstream, therefore become original flowing to the right.Similarly, towards the bottom of the resistance body 37 of bottom right shape, air stream to the right becomes in resistance body 37 to upper right flowing, after resistance body 37 is crossed in this circulation of air in the upstream of resistance body 37, because still towards the downstream, therefore become original flowing to the right.
So, in the upper and lower of resistance body 37, because the direction that flows changes, concentrate the contracted flow that flows for 38 one-tenth at the central portion of resistance body 37, flowing is accelerated.That is, the distribution of the wind speed by resistance body 37 becomes inhomogeneous.Identical phenomenon might be because the inhomogeneous heat-shift that makes of wind speed profile reduces when heat exchanger takes place, and the fan that perhaps uneven wind speed profile acts on the downstream increases noise.
Description of drawings
Fig. 1 is the figure of configuration of the heat-transfer pipe of expression front face side indoor heat converter.
Fig. 2 is the figure of expression freeze cycle structure.
Fig. 3 is the figure of the structure of expression intersection fin-tube type heat exchanger.
Fig. 4 is the figure of the section of expression indoor set.
Fig. 5 is the figure of the shape of expression front face side indoor heat converter.
Fig. 6 is the figure of configuration of the heat-transfer pipe of expression front face side indoor heat converter.
Fig. 7 is the figure of the air stream of the resistance body of expression by having bend.
Among the figure:
The 1-off-premises station, 2-compressor, 3-cross valve, the 4-outdoor heat converter, 5-propeller fan, 6-throttling arrangement, the 7-indoor set, 8-indoor heat converter, 9-DC fan, the 10-connecting pipings, 11-fin, 12-heat-transfer pipe, the 13-joint part, 14-indoor set back side frame body, 15-indoor set front face side framework, the 16-front panel of indoor unit, 17-wind direction control panel, side frame body before the 18-indoor set top, 19-coarse filter frame, 20-front face side indoor heat converter, 21-rear side indoor heat converter, 22-front air suction inlet, air suction inlet above the 23-, 24-air blow-off outlet, 25,26,27-front edge side line part, 28,29-front edge side curve part, 30,31,32-trailing edge side line part, 33,34-trailing edge side curve part, 35,36-heat exchanger curve part, 37-resistance body, the central portion of 38-resistance body, the thin arrow group of 39-, the heat-transfer pipe that the bending radius of 40-U character segment is little, 50,51,52-heat exchanger line part.
The specific embodiment
Below, utilize the description of drawings embodiments of the invention.
Embodiment 1
Utilize Fig. 1~Fig. 5, Fig. 7 that the first embodiment of the present invention is described.At first, the basic structure to the air regulator of present embodiment describes.Fig. 2 is the structure chart of freeze cycle.The air regulator of present embodiment is by realizing function with connecting pipings 10 connection off-premises stations 1 and indoor set 7.Off-premises station 1 possesses: compressor 2, cross valve 3, outdoor heat converter 4, throttling arrangement 6 and propeller fan 5.Indoor set 7 possesses: indoor heat converter 8 and Air Blast fan.And, can use DC fan 9 as Air Blast fan.
Below, the effect of each inscape when cold air operation at first is described.The gas shape refrigerant of the high pressure that is compressed by compressor 2 condenses to the extraneous air heat release by utilizing outdoor heat converter 4, becomes the liquid refrigerant of high pressure.This liquid refrigerant is depressurized by the effect of throttling arrangement 6, becomes the gas-liquid two-phase state of low-temp low-pressure, flows to indoor set 7 by connecting pipings 10.The refrigerant that enters into indoor set 7 absorbs heat by the heat of utilizing 8 pairs of room airs of indoor heat converter and evaporates.Refrigerant by the indoor unit evaporation turns back to off-premises station 1 by connecting pipings 10, is compressed by compressor 2 once more by cross valve 3.
Heating installation when running, switch the refrigerant runners with cross valve 3, the gas shape refrigerant of the high pressure that is compressed by compressor 2 flows to indoor set 7 by cross valve 3 and connecting pipings 10.The refrigerant that enters indoor set 7 condenses to the room air heat release by utilizing indoor heat converter 8, becomes the liquid refrigerant of high pressure.This liquid refrigerant flows to off-premises station 1 by connecting pipings 10.The liquid refrigerant that enters off-premises station 1 is depressurized by the effect of throttling arrangement 6, becomes the gas-liquid two-phase state of low-temp low-pressure.The cryogen flow that becomes the gas-liquid two-phase state of low-temp low-pressure arrives outdoor heat converter 4, evaporates by the heat of absorption chamber outer air, becomes gas shape refrigerant.This gas shape refrigerant is compressed by compressor 2 once more by cross valve 3.
Fig. 3 represents to intersect the structure of heat exchanger of fin-tube type.This heat exchanger connects a plurality of aluminum thermal fins 11 by the copper heat-transfer pipe 12 that bends to the U font and constitutes.By hydraulic pressure or mechanical mode the heat-transfer pipe 12 that is inserted into fin is carried out expander, thereby fin 11 and heat-transfer pipe 12 are close to.And, be welded with joint part 13 in the end of heat-transfer pipe 12, constitute the runner of refrigerant.
Fig. 4 be the indoor set of air regulator cutaway view (perpendicular to heat-transfer pipe the axle section).The top of framework be provided with air suction inlet (specifically, be provided with front air suction inlet 22 in the front of framework, and on framework, be provided with above air suction inlet 23), below framework, be provided with air blow-off outlet 24.In framework, be equipped with DC fan 9, the way in air channel, be equipped with the heat exchanger of intersection fin-tube type from this air suction inlet to DC fan.Indoor heat converter 8 is made of heat exchanger 21 in front face side indoor heat converter 20 and the side room, back.And heat exchanger 21 is adapted to roughly inverted v-shaped in front face side indoor heat converter 20 and the side room, back, to surround DC fan 9.When starting DC fan 9,, utilize the indoor heat converter 8 and the refrigerant of inside to carry out heat exchange, and blow out, thereby room air is carried out air conditioning from air blow-off outlet 24 because room air flows into from air suction inlet.
Next, utilize Fig. 5 that the detailed section shape of front face side indoor heat converter 20 is described.The windward exterior region of heat exchanger 20 in the side room in front, front edge side line part 25 is connected by front edge side curve part 28 with front edge side line part 26, and front edge side line part 26 is connected by front edge side curve part 29 with front edge side line part 27.And, the leeward hinder marginal part of heat exchanger 20 in the side room in front, trailing edge side line part 30 is connected by trailing edge lateral bending pars convoluta 33 with trailing edge side line part 31, and trailing edge side line part 31 is connected by trailing edge lateral bending pars convoluta 34 with trailing edge side line part 32.Adopt this structure, the front face side indoor heat converter forms agley to the direction of DC fan 9.
The hachure portion of Fig. 5 upside represents by the heat exchanger curve part 35 of trailing edge lateral bending pars convoluta 33 encirclements of the front edge side bend 28 of windward leading edge and leeward trailing edge.And the hachure portion of Fig. 5 downside represents by the heat exchanger curve part 36 of trailing edge side curve part 34 encirclements of the front edge side bend 29 of windward leading edge and leeward trailing edge.The part that does not have hatching is by the heat exchanger line part 50 of trailing edge side line part 30 encirclements of the front edge side line part 25 of windward leading edge and leeward trailing edge, by the heat exchanger line part 51 of trailing edge side line part 31 encirclements of the front edge side line part 26 of windward leading edge and leeward trailing edge, by the heat exchanger line part 52 of trailing edge side line part 32 encirclements of the front edge side line part 27 of windward leading edge and front edge side leeward trailing edge.At this, the two ends of heat exchanger curve part 35 are connected in heat exchanger line part 50 and heat exchanger line part 51, and the two ends of heat exchanger curve part 36 connect and heat exchanger line part 51 and heat exchanger line part 52.As utilize the explanation of Fig. 7, heat exchanger curve part 35,36 quickens flowing of air easily than heat exchanger line part 50,51,52.
Next, utilize Fig. 1 that the configuration of the heat-transfer pipe of the section of the front face side indoor heat converter 20 of present embodiment is described.In front in the side room in the heat exchanger 20, dispose three biographies heat pipes, disposing Floor 12 with the rectangular direction of the flow direction of air along the flow direction of air.Dotted line among the figure represents that the heat-transfer pipe that is inserted into bends to the part of U font.Here L0 represents the configuration space of the heat-transfer pipe of heat exchanger line part.L1 and L2 represent the configuration space of heat-transfer pipe minimum in the configuration space of heat-transfer pipe of heat exchanger curve part 35 and heat exchanger curve part 36.In the present embodiment, the relation of L0, L1, L2 is shown below.
L1<L0
L2<L0
Promptly, the configuration space of the heat-transfer pipe of the heat exchanger curve part 35,36 that air is accelerated easily is narrower than the configuration space of the heat-transfer pipe of heat exchanger line part 50,51,52, because the flowing resistance of heat exchanger curve part 35,36 is relatively bigger, can suppress the acceleration of the air stream of heat exchanger curve part 35,36.That is, the wind speed profile that can reduce the air by heat exchanger is inhomogeneous, can with improve energy saving and realize quietization both.
In order to increase the flowing resistance of heat exchanger curve part 35,36, can realize by dwindling first configuration space that is listed as the heat-transfer pipe of any row in the 3rd row.But air turns cold during cold air operation, and airborne moisture is condensed, and when producing dewfall on the fin of heat exchanger, because the part that the highest air of humidity passes through is first row, thereby adheres to more dew on the fin of first row.When adhering to dew on the fin, because the part that air can pass through reduces, flowing resistance can increase.That is, when increasing flowing resistance by the configuration space that dwindles pipe, as present embodiment, the configuration space of the heat-transfer pipe of first row by dwindling windward is more effective.
And, in the present embodiment, the configuration space of the heat-transfer pipe by making heat exchanger curve part 35,36 is littler than the configuration space of the heat-transfer pipe of heat exchanger line part 50,51,52, suppress the acceleration of the air stream of the heat exchanger curve part 35,36 that air is accelerated easily, thereby reduced wind speed profile inhomogeneous of the air by heat exchanger.But the present invention is not just as present embodiment, constitute by indoor heat converter with heat exchanger line part and heat exchanger curve part, even the occasion that only constitutes not possessing the heat exchanger line part by the heat exchanger curve part, curvature by this heat exchanger curve part changes, produce the zone that air quickens easily, also the uneven occasion of wind speed profile to the air by indoor heat converter is effective.As long as make the configuration space of heat-transfer pipe of the configuration space of heat-transfer pipe of the bigger part of the curvature of the front face side heat exchanger part littler little in this occasion than the curvature of front face side heat exchanger.Owing to utilize the configuration space of heat-transfer pipe of the configuration space of heat-transfer pipe of the bigger part of the curvature make the front face side heat exchanger part littler little than curvature, can prevent the acceleration of the air stream of the part that curvature that air is accelerated easily is littler, thereby it is inhomogeneous to reduce the wind speed profile of the air by heat exchanger.
And, as the explanation that utilizes Fig. 3 to do, the heat exchanger of intersection fin-tube type is owing to having used the heat-transfer pipe that bends to the U font, in order to make the configuration space difference of heat-transfer pipe, need make the bending radius difference of the heat-transfer pipe that bends to the U font (that is, need to prepare multiple heat-transfer pipe.)。But, in the present embodiment, configuration space by the heat-transfer pipe of adjacency in the heat-transfer pipe that dwindles two U fonts (that is, because the heat-transfer pipe of the U font of adjacency is adjusted to L0, L1, L2) just can not need multiple heat-transfer pipe and only with a kind of heat-transfer pipe formation heat exchanger of U font.
Embodiment 2
Utilize Fig. 6 that the second embodiment of the present invention is described.Because the basic structure of the air regulator of present embodiment is identical with first embodiment, therefore omitted detailed explanation, only difference is described.
Fig. 6 represents the configuration of heat-transfer pipe of the front face side indoor heat converter of present embodiment.In the front face side indoor heat converter of present embodiment, dispose three biographies heat pipes along the flow direction of air, disposing Floor 12 with the rectangular direction of the flow direction of air.Dotted line among the figure represents that the heat-transfer pipe that is inserted into bends to the part of U font.Here L0 represents the configuration space of the heat-transfer pipe of heat exchanger line part.L1 and L2 represent the configuration space of heat-transfer pipe minimum in the configuration space of heat-transfer pipe of heat exchanger curve part 35 and heat exchanger curve part 36.In the present embodiment, the relation of L0, L1, L2 and first embodiment similarly are shown below.
L1<L0
L2<L0
Promptly, because the configuration space of the heat-transfer pipe of the heat exchanger curve part 35,36 that air is accelerated easily is narrower than the configuration space of the heat-transfer pipe of heat exchanger line part 50,51,52, the flowing resistance of heat exchanger curve part 35,36 is relatively big, thereby can suppress the acceleration of the air stream of heat exchanger curve part 35,36.That is, the wind speed profile that can reduce the air by heat exchanger is inhomogeneous, can be with improving energy saving and realizing both effects of quietization.
In the present invention, in first embodiment, the part that bends to the U font of the heat-transfer pipe part of dotted line (among the Fig. 6 draw) is not present in the little part of the configuration space of heat-transfer pipe.But in the present embodiment, the part that bends to the U font of the heat-transfer pipe part of dotted line (among the Fig. 6 draw) is present in the little part of the configuration space of heat-transfer pipe.That is,, reduced the arrangement pitch of heat-transfer pipe by using the bending radius heat-transfer pipe 40 littler of U character segment than other heat-transfer pipes.