CN102853482A - Outdoor unit of split air conditioner - Google Patents

Abstract

The invention provides an outdoor unit of a split air conditioner, which belongs to the technical field of air conditioners. The outdoor unit for the split air conditioner comprises a casing (1), wherein a heat exchanger (2), a fan (3) and a compressor (4) are arranged inside the casing (1), an air inlet (5) and an air outlet (6) are arranged on the surface of the casing (1), and a certain angle is formed between a rotation axis (Y1) of the fan (3) and the vertical direction (Y2) of a front panel (11) of the casing (1). According to the invention, the total air quantity of the outdoor unit can be improved.

Description

A kind of outdoor machine of body-separated air-conditioner

Technical field

The present invention relates to air-conditioning technical field, particularly a kind of outdoor machine of body-separated air-conditioner.

Background technology

Present outdoor machine of body-separated air-conditioner, comprise housing, surface of shell is provided with air inlet and air outlet, two Room about the divided plate of enclosure interior is divided into, wherein a side is compressor room, opposite side is heat exchanger chamber, is provided with compressor, cold-producing medium fluid reservoir and muffler in the compressor room, indoor heat exchanger, fan and the kuppe of being provided with of heat exchanger.Wherein, the rotating shaft of fan is parallel with the vertical direction of housing front panel.During actual motion, air is inhaled into from air inlet, by carrying out heat exchange with cold-producing medium behind the heat exchanger, is discharged by air outlet through the kuppe guiding by fan again.

Air-conditioner outdoor unit described above is provided with the heat exchanger with bend therein, because the impact of heat exchanger shape, so that by heat exchanger sweep air seldom, so that the whole air quantity of off-premises station descends.

Summary of the invention

The purpose of this invention is to provide a kind of outdoor machine of body-separated air-conditioner, to improve the whole air quantity of off-premises station.

For achieving the above object, it is as follows to the invention provides technical scheme:

A kind of outdoor machine of body-separated air-conditioner, comprise housing 1, described housing 1 inside is provided with heat exchanger 2, fan 3 and compressor 4, and described housing 1 surface is provided with air inlet 5 and air outlet 6, wherein, the vertical direction Y2 of the rotating shaft Y1 of described fan 3 and described housing 1 front panel 11 is angled.

Preferably, when the rotating shaft Y1 of described fan 3 and described housing 1 front panel 11 is vertical, fan 3 is near the blade of heat exchanger 2 bends 21, with 2 one-tenths beelines of heat exchanger the time, this blade external diameter projection be positioned at heat exchanger 2 bends 21 begin locate or described bend 21.

Preferably, the rotating shaft Y1 of described fan 3 is along the bend 21 of the close described heat exchanger 2 of ascending zone of Air Flow, and its lower current area is near described compressor 4.

Preferably, looked to upside by downside along air-flow direction, the part of described heat exchanger 2 bends 21 is comprised in the perspective plane of described fan 3 external diameters.

Preferably, determine the rotating shaft Y1 of described fan 3 and the vertical direction Y2 angulation θ of described housing 1 front panel 11 according to following formula:

${\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="HSA00000533159100012.png,HSA00000533159100021.png"\; state="\{\{state\}\}">L</figure-callout>}}_2+R=\frac{({\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="HSA00000533159100012.png,HSA00000533159100021.png"\; state="\{\{state\}\}">L</figure-callout>}}_2+R)\&CenterDot;\sqrt{{({\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="HSA00000533159100012.png,HSA00000533159100021.png"\; state="\{\{state\}\}">L</figure-callout>}}_2+R)}^2+{{\mathrm{<figure-callout\; id="3"\; label="L"\; filenames="HSA00000533159100011.png,HSA00000533159100021.png"\; state="\{\{state\}\}">L</figure-callout>}}_3}^2-2({\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="HSA00000533159100012.png,HSA00000533159100021.png"\; state="\{\{state\}\}">L</figure-callout>}}_2+R){\mathrm{<figure-callout\; id="3"\; label="L"\; filenames="HSA00000533159100011.png,HSA00000533159100021.png"\; state="\{\{state\}\}">L</figure-callout>}}_3\cos \mathrm{\&theta;}}}{\sqrt{{({\mathrm{<figure-callout\; id="1"\; label="L"\; filenames="HSA00000533159100021.png,HSA00000533159100041.png"\; state="\{\{state\}\}">L</figure-callout>}}_1+\frac{2R\sin \mathrm{\&beta;}\cos (\mathrm{\&beta;}-\mathrm{\&theta;})}{\cos \mathrm{\&theta;}})}^2+{({\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="HSA00000533159100012.png,HSA00000533159100021.png"\; state="\{\{state\}\}">L</figure-callout>}}_2+R)}^2}}+{\mathrm{<figure-callout\; id="3"\; label="L"\; filenames="HSA00000533159100011.png,HSA00000533159100021.png"\; state="\{\{state\}\}">L</figure-callout>}}_3\cos \mathrm{\&theta;}$

In the formula:

R-heat exchanger bend outer radius;

L ₁-heat exchanger horizontal length;

L ₂-heat exchanger longitudinal length;

L ₃The length of-line segment BD, the projection line of fan external diameter and heat exchanger horizontal line meet at the B point, the A point be the heat exchanger horizontal line from heat exchanger bend point farthest, cross the B point and do vertical line and the heat exchanger base of AB and meet at the C point, the projection line of straight line AC and fan external diameter meets at the D point;

After tilting, β-fan is comprised in the string of heat exchanger bend circular arc in the fan external diameter perspective plane, with the angle of horizontal direction.

Preferably, the scope of the vertical direction Y2 angulation of the rotating shaft Y1 of described fan 3 and described housing 1 front panel 11 is that 4 degree are to 8 degree.

Preferably, around described fan 3, be provided with kuppe 7, the rotating shaft of described kuppe 7 is consistent with the rotating shaft Y1 of described fan 3, and described kuppe 7 is positioned at the length of described compressor 4 sides greater than the length that is positioned at described heat exchanger 2 sides along the length of air-flow direction.

Preferably, described kuppe 7 is along air-flow direction downstream side periphery type linearly, and the downstream side opening is greater than the upstream side opening.

Preferably, described kuppe 7 is trumpet type along air-flow direction downstream side periphery.

Preferably, described kuppe 7 part that is positioned at described compressor 4 sides independently makes respectively with the front panel 11 of described housing 1.

There is following technique effect at least in the embodiment of the invention:

(1) among the embodiment of air-conditioner outdoor unit of the present invention, the vertical direction Y2 of the rotating shaft Y1 of fan 3 and housing 1 front panel 11 is angled, the rotating shaft Y1 of fan 3 is along the bend 21 of the close heat exchanger 2 of ascending zone of Air Flow, lower current area is near compressor 4, looked to upside by downside along air-flow direction, the part of heat exchanger 2 bends 21 is comprised in the perspective plane of fan 3 external diameters.Like this so that in the fan external diameter perspective plane area ratio of heat exchanger increase, make the area that fan can the cover heating interchanger larger, thereby improve the air quantity of off-premises station.

(2) among the embodiment of air-conditioner outdoor unit of the present invention, be provided with kuppe 7 around the fan 3, the rotating shaft of kuppe 7 is consistent with the rotating shaft Y1 of fan 3, and kuppe 7 is along the length of air-flow direction, and the length that is positioned at compressor 4 sides is greater than the length that is positioned at heat exchanger 2 sides.So that kuppe is strengthened the guidance capability of blow out air, be conducive to the outflow of air like this, thereby improve the air quantity of off-premises station.

(3) among the embodiment of air-conditioner outdoor unit of the present invention, kuppe 7 is along air-flow direction downstream side periphery linearly type or trumpet type, and the downstream side opening is greater than the upstream side opening.So that the air outlet area of off-premises station increases, be conducive to the outflow of air like this, thereby improve the air quantity of off-premises station.

(4) among the embodiment of air-conditioner outdoor unit of the present invention, the part that kuppe 7 is positioned at compressor 4 sides can independently make respectively with the front panel 11 of housing 1, like this so that implement conveniently to have reduced manufacturing cost.

Description of drawings

Fig. 1 is the structural representation according to the outdoor machine of body-separated air-conditioner of the embodiment of the invention 1;

Fig. 2～6 are the graph of a relation of embodiment of the invention fan angle of inclination and air quantity effect;

Fig. 7 is the structural representation according to the outdoor machine of body-separated air-conditioner of the embodiment of the invention 2;

Fig. 8 is the structural representation according to the outdoor machine of body-separated air-conditioner of the embodiment of the invention 3;

Fig. 9 is the structural representation according to the outdoor machine of body-separated air-conditioner of the embodiment of the invention 4.

Description of reference numerals:

The specific embodiment

For making the purpose, technical solutions and advantages of the present invention clearer, describe the present invention below in conjunction with the accompanying drawings and the specific embodiments.

Fig. 1 is the structural representation according to the outdoor machine of body-separated air-conditioner of the embodiment of the invention 1, as shown in Figure 1, described air-conditioner outdoor unit comprises housing 1, housing 1 surface is provided with air inlet 5 and air outlet 6, two Room about housing 1 inner divided plate 8 is divided into, wherein a side is compressor room, opposite side is heat exchanger chamber, be provided with compressor 4, cold-producing medium fluid reservoir 9 and muffler 10 in the compressor room, indoor L shaped heat exchanger 2A, fan 3 and the kuppe 7 of being provided with of heat exchanger.Wherein, the vertical direction Y2 of the rotating shaft Y1 of fan 3 and housing 1 front panel 11 is angled.

Preferably, when the rotating shaft Y1 of fan 3 and housing 1 front panel 11 is vertical, fan 3 is near the blade of heat exchanger 2 bends 21, with 2 one-tenths beelines of heat exchanger the time, this blade external diameter projection be positioned at heat exchanger 2 bends 21 begin locate or bend 21.

Preferably, the rotating shaft Y1 of fan 3 is along the bend 21 of the close heat exchanger 2 of ascending zone of Air Flow, and lower current area is near compressor 4; Looked to upside by downside along air-flow direction, bend 21 parts of heat exchanger 2 are comprised in the perspective plane of fan 3 external diameters.

In the present embodiment, be provided with kuppe 7 around the fan 3, so that it is outdoor to be discharged to heat exchanger by the air behind the heat exchanger 2 by kuppe 7 guiding.Preferably, the rotating shaft of kuppe 7 is consistent with the rotating shaft Y1 of fan 3, and kuppe 7 is positioned at the length of compressor 4 sides greater than the length that is positioned at heat exchanger 2 sides along the length of air-flow direction; Kuppe 7 is along air-flow direction downstream side periphery type linearly, and the downstream side opening is greater than the upstream side opening; The part that kuppe 7 is positioned at compressor 4 sides can independently make with the front panel 11 of housing 1, also can one make.

According to the abovementioned embodiments of the present invention, by certain angle that fan is tilted, can improve the whole air quantity of off-premises station, when air quantity improves, the heat-exchanger surface wind speed accelerates, so that the convection transfer rate of air and heat-exchanger surface becomes large, the heat exchange amount of air and heat exchanger increases, thereby has improved the heat exchange property of heat exchanger.

Wherein, the vertical direction Y2 angulation θ of the rotating shaft Y1 of fan 3 and housing 1 front panel 11 (being called for short the fan angle of inclination) needs according to the size of fan, the size of off-premises station, the size of heat exchanger etc., measures by experiment and finally determines.

By deriving as can be known fan tilt angle theta and R, L ₁, L ₂, L ₃, have following relation between the β:

${\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="HSA00000533159100012.png,HSA00000533159100021.png"\; state="\{\{state\}\}">L</figure-callout>}}_2+R=\frac{({\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="HSA00000533159100012.png,HSA00000533159100021.png"\; state="\{\{state\}\}">L</figure-callout>}}_2+R)\&CenterDot;\sqrt{{({\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="HSA00000533159100012.png,HSA00000533159100021.png"\; state="\{\{state\}\}">L</figure-callout>}}_2+R)}^2+{{\mathrm{<figure-callout\; id="3"\; label="L"\; filenames="HSA00000533159100011.png,HSA00000533159100021.png"\; state="\{\{state\}\}">L</figure-callout>}}_3}^2-2({\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="HSA00000533159100012.png,HSA00000533159100021.png"\; state="\{\{state\}\}">L</figure-callout>}}_2+R){\mathrm{<figure-callout\; id="3"\; label="L"\; filenames="HSA00000533159100011.png,HSA00000533159100021.png"\; state="\{\{state\}\}">L</figure-callout>}}_3\cos \mathrm{\&theta;}}}{\sqrt{{({\mathrm{<figure-callout\; id="1"\; label="L"\; filenames="HSA00000533159100021.png,HSA00000533159100041.png"\; state="\{\{state\}\}">L</figure-callout>}}_1+\frac{2R\sin \mathrm{\&beta;}\cos (\mathrm{\&beta;}-\mathrm{\&theta;})}{\cos \mathrm{\&theta;}})}^2+{({\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="HSA00000533159100012.png,HSA00000533159100021.png"\; state="\{\{state\}\}">L</figure-callout>}}_2+R)}^2}}+{\mathrm{<figure-callout\; id="3"\; label="L"\; filenames="HSA00000533159100011.png,HSA00000533159100021.png"\; state="\{\{state\}\}">L</figure-callout>}}_3\cos \mathrm{\&theta;}$

In the formula:

R-heat exchanger bend outer radius;

L ₁-heat exchanger horizontal length;

L ₂-heat exchanger longitudinal length;

L ₃The length of-line segment BD, the projection line of fan external diameter and heat exchanger horizontal line meet at the B point, the A point be the heat exchanger horizontal line from heat exchanger bend point farthest, cross the B point and do vertical line and the heat exchanger base of AB and meet at the C point, the projection line of straight line AC and fan external diameter meets at the D point;

After tilting, β-fan is comprised in the string of heat exchanger bend circular arc in the fan external diameter perspective plane, with the angle of horizontal direction.

In the certain situation of off-premises station, R, L ₁, L ₂Known, L ₃, β is by measuring, and then can try to achieve the θ value according to above-mentioned formula.Because above-mentioned formula is comparatively complicated, be difficult to obtain the solution of θ, thus obtain in the situation of different off-premises stations by following experiment method, along with the variation of θ, the variation of off-premises station air quantity.

Particularly, for the various ratios of the horizontal length of side of off-premises station heat exchanger and the vertical length of side (namely ), come by experiment to determine the air quantity effect of differing tilt angles, choose the linear pattern kuppe in the experiment and carry out air-quantity measuring.

When

The time, experimentation is as follows:

Fan heat exchanger bend is tilted, so that the rotary middle spindle of fan becomes 1 degree with the vertical direction of outdoor shell front panel;

Kuppe heat exchanger bend is tilted, so that the rotating shaft of kuppe is consistent with the rotary middle spindle of fan, become 1 degree with the vertical direction of housing front panel;

Record by experiment the off-premises station air quantity of this moment;

Fan and kuppe are continued to tilt, every increase by 1 degree in angle of inclination, the air quantity of an off-premises station of survey is until fan can't be tilted by the off-premises station size restrictions.

When Got respectively 2.5,1.8,1.5 o'clock, and recorded under the differing tilt angles airflow value of off-premises station according to above-mentioned experimentation.

Experimental result shown in Fig. 2～6, among the figure, the air quantity when Q is fan cant angle theta angle, Q ₀Air quantity when not tilting (horizontal positioned) for fan.As follows to above-mentioned experimental result concrete analysis:

With reference to Fig. 2, when

The time, when fan inclination 2 is spent, Q and Q ₀Ratio be 100.23%, air quantity has not improved 0.23% when tilting; When the angle of inclination is 5 when spending, Q and Q ₀Ratio be 100.58%, air quantity has not improved 0.58% when tilting; When the angle of inclination is 7 when spending, Q and Q ₀Ratio be 100.16%, air quantity has not improved 0.16% when tilting, but 5 certain decline has been arranged when spending than tilting; When the angle of inclination is 10 when spending, Q and Q ₀Ratio be 99.18%, air quantity has not reduced by 0.82% when tilting.

With reference to Fig. 3, when

The time, when fan inclination 2 is spent, Q and Q ₀Ratio be 100.15%, air quantity has not improved 0.15% when tilting; When the angle of inclination is 4 when spending, Q and Q ₀Ratio be 100.32%, air quantity has not improved 0.32% when tilting; When the angle of inclination is 7 when spending, Q and Q ₀Ratio be 100.06%, air quantity has not improved 0.06% when tilting, but 4 certain decline has been arranged when spending than tilting; When the angle of inclination is 9 when spending, Q and Q ₀Ratio be 99.75%, air quantity has not reduced by 0.25% when tilting.

With reference to Fig. 4, when

The time, when fan inclination 4 is spent, Q and Q ₀Ratio be 100.76%, air quantity has not improved 0.76% when tilting; When the angle of inclination is 7 when spending, Q and Q ₀Ratio be 101.51%, air quantity has not improved 1.51% when tilting; When the angle of inclination is 9 when spending, Q and Q ₀Ratio be 100.81%, air quantity has not improved 0.81% when tilting, but 7 certain decline has been arranged when spending than tilting; When the angle of inclination is 12 when spending, Q and Q ₀Ratio be 99.79%, air quantity has not reduced by 0.21% when tilting.

With reference to Fig. 5, when

The time, when fan inclination 4 is spent, Q and Q ₀Ratio be 100.94%, air quantity has not improved 0.94% when tilting; When the angle of inclination is 8 when spending, Q and Q ₀Ratio be 102.34%, air quantity has not improved 2.34% when tilting; When the angle of inclination is 10 when spending, Q and Q ₀Ratio be 101.79%, air quantity has not improved 1.79% when tilting, but 8 certain decline has been arranged when spending than tilting; When the angle of inclination is 12 when spending, Q and Q ₀Ratio be 100.95%, air quantity has not improved 0.95% when tilting.

From above experiment as can be known, for different

Value, the optimum tilt angle of fan different (with reference to Fig. 6), in general, the angle of inclination of fan is when 4 degree are within the scopes of 8 degree, and the lifting effect of the whole air quantity of off-premises station is better.

In embodiment 1 for kuppe 7 along air-flow direction downstream side periphery linearly the situation of type be illustrated, but the present invention is not limited to this situation.

Fig. 7 is the structural representation according to the outdoor machine of body-separated air-conditioner of the embodiment of the invention 2, and embodiment 2 is that with the difference of embodiment 1 kuppe 7 is trumpet type along the air-flow direction periphery.Trumpet type refers to increase gradually along air-flow direction periphery aperture area, and trumpet type and front panel 11 angulation a (as shown in Figure 7) if this angle greater than 45 degree, has sinuous flow and produces, affect the off-premises station air quantity within 45 degree.

Fig. 8 is the structural representation according to the outdoor machine of body-separated air-conditioner of the embodiment of the invention 3, and embodiment 3 is that with the difference of embodiment 1 heat exchanger is U-shaped heat exchanger 2B.The vertical direction Y2 of the rotating shaft Y1 of its fan inside 3 and housing 1 front panel 11 is angled, and heat exchanger bend 21 parts are comprised in the perspective plane of fan external diameter.

Fig. 9 is the structural representation according to the outdoor machine of body-separated air-conditioner of the embodiment of the invention 4, and embodiment 4 is that with the difference of embodiment 3 kuppe 7 is trumpet type along the air-flow direction periphery.Trumpet type refers to increase gradually along air-flow direction periphery aperture area, and trumpet type and front panel 11 angulation a (as shown in Figure 9) if this angle greater than 45 degree, has sinuous flow and produces, affect the off-premises station air quantity within 45 degree.

In sum, the outdoor machine of body-separated air-conditioner of the embodiment of the invention, the vertical direction Y2 of the rotating shaft Y1 of its fan inside 3 and housing 1 front panel 11 is angled, and heat exchanger bend 21 parts are comprised in the perspective plane of fan external diameter, improved the area ratio of heat exchanger in the fan external diameter perspective plane, adjust simultaneously the cleanliness of kuppe 7 according to air-flow character, thereby improved the whole air quantity of off-premises station.

Should be noted that at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the spiritual scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.

Claims (11)

1. outdoor machine of body-separated air-conditioner, comprise housing (1), described housing (1) inside is provided with heat exchanger (2), fan (3) and compressor (4), described housing (1) surface is provided with air inlet (5) and air outlet (6), it is characterized in that: the rotating shaft (Y1) of described fan (3) is angled with the vertical direction (Y2) of described housing (1) front panel (11).

2. outdoor machine of body-separated air-conditioner according to claim 1, it is characterized in that: when the rotating shaft (Y1) of described fan (3) is vertical with described housing (1) front panel (11), fan (3) is near the blade of heat exchanger (2) bend (21), with heat exchanger (2) when becoming beeline, what this blade external diameter projection was positioned at heat exchanger (2) bend (21) begins place or described bend (21).

3. outdoor machine of body-separated air-conditioner according to claim 1, it is characterized in that: the rotating shaft (Y1) of described fan (3) is along the bend (21) of the close described heat exchanger (2) of ascending zone of Air Flow, and its lower current area is near described compressor (4).

4. outdoor machine of body-separated air-conditioner according to claim 1, it is characterized in that: looked to upside by downside along air-flow direction, the part of described heat exchanger (2) bend (21) is comprised in the perspective plane of described fan (3) external diameter.

5. outdoor machine of body-separated air-conditioner according to claim 1, it is characterized in that, determine the rotating shaft (Y1) of described fan (3) and vertical direction (Y2) the angulation θ of described housing (1) front panel (11) according to following formula:

$L_2+R=\frac{(L_2+R)\&CenterDot;\sqrt{{(L_2+R)}^2+{L_3}^2-2(L_2+R)L_3\cos \mathrm{\&theta;}}}{\sqrt{{(L_1+\frac{2R\sin \mathrm{\&beta;}\cos (\mathrm{\&beta;}-\mathrm{\&theta;})}{\cos \mathrm{\&theta;}})}^2+{(L_2+R)}^2}}+L_3\cos \mathrm{\&theta;}$

In the formula:

R-heat exchanger bend outer radius;

L ₁-heat exchanger horizontal length;

L ₂-heat exchanger longitudinal length;

L ₃The length of-line segment BD, the projection line of fan external diameter and heat exchanger horizontal line meet at the B point, the A point be the heat exchanger horizontal line from heat exchanger bend point farthest, cross the B point and do vertical line and the heat exchanger base of AB and meet at the C point, the projection line of straight line AC and fan external diameter meets at the D point;

After tilting, β-fan is comprised in the string of heat exchanger bend circular arc in the fan external diameter perspective plane, with the angle of horizontal direction.

6. outdoor machine of body-separated air-conditioner according to claim 1 is characterized in that: the rotating shaft (Y1) of described fan (3) is that 4 degree are to 8 degree with the scope of vertical direction (Y2) angulation of described housing (1) front panel (11).

7. outdoor machine of body-separated air-conditioner according to claim 1, it is characterized in that: be provided with kuppe (7) on every side at described fan (3), the rotating shaft of described kuppe (7) is consistent with the rotating shaft (Y1) of described fan (3), described kuppe (7) is positioned at the length of described compressor (4) side greater than the length that is positioned at described heat exchanger (2) side along the length of air-flow direction.

8. outdoor machine of body-separated air-conditioner according to claim 7 is characterized in that: described kuppe (7) is along air-flow direction downstream side periphery type linearly, and the downstream side opening is greater than the upstream side opening.

9. outdoor machine of body-separated air-conditioner according to claim 7, it is characterized in that: described kuppe (7) is trumpet type along air-flow direction downstream side periphery.

10. outdoor machine of body-separated air-conditioner according to claim 7 is characterized in that: the part that described kuppe (7) is positioned at described compressor (4) side makes with front panel (11) one of described housing (1).

11. outdoor machine of body-separated air-conditioner according to claim 7 is characterized in that: the part that described kuppe (7) is positioned at described compressor (4) side independently makes respectively with the front panel (11) of described housing (1).

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