CN2700746Y - Outdoor machine of air conditioner - Google Patents
Outdoor machine of air conditioner Download PDFInfo
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- CN2700746Y CN2700746Y CN 03242751 CN03242751U CN2700746Y CN 2700746 Y CN2700746 Y CN 2700746Y CN 03242751 CN03242751 CN 03242751 CN 03242751 U CN03242751 U CN 03242751U CN 2700746 Y CN2700746 Y CN 2700746Y
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Abstract
The utility model provides an outdoor machine of an air conditioner, which can further decrease noise created by airflow. The outdoor machine of the air conditioner comprises a horn body (9), and an air blowing fan with a rotary shaft. The horn body (9) is provided with a bending part (92) and a plane part (93). The bending part (92) forms an opening for the airflow created by the air blowing fan passing through along rotation direction. The suction side of the opening is bigger adjacent to the airflow by the bend of a curvature radius (R). The plane part (93) is extended out from at least one part of the external edge of the suction side of the bending part (92). In a half plane taking the rotary shaft as an end, the ratio of the maximum value Lm of the length of the plane part (93), indicative of the cut cross section of the plane part (93), to the curvature radius R of the bending section (92) is 0.5<=Lm/R<=1.5.
Description
Technical field
The utility model relates to a kind of off-premises station of air conditioner, particularly relates to the off-premises station of the air conditioner with horn body.
Background technology
On the off-premises station of air conditioner, Air Blast fan is installed, produces one by Air Blast fan and suck in the off-premises station, and blow to off-premises station air outside stream again.Usually be provided with horn body shown in Figure 15 near the air outlet slit of the outside blow out air of off-premises station, forming air flue to outdoor discharge air.Cross this horn body by the circulation of air that Air Blast fan produces, but this moment, air stream tended to produce noise.Therefore, at present, proposed to be provided with the horn body (with reference to Patent Document 1) of bend in the suction side of air stream.The opening that the air stream that the bend formation of this horn body is produced by Air Blast fan can pass through, as shown in figure 16, opening flows the suction side with the crooked more close air of radius of curvature R and becomes bigger.In Figure 14, the right side is the suction side, and the left side is to blow out side.
Because such bend constitutes horn body suction side outward flange, therefore, air stream can pass through horn body glossily, reduces empty noise generated by air flow.
Because above-mentioned such bend constitutes the outward flange of horn body suction side, therefore, can reduce empty noise generated by air flow.But, for the user of air conditioner, still wish further to reduce the noise that produces like this.
Summary of the invention
The purpose of this utility model is to provide a kind of off-premises station that can further reduce by the air conditioner of empty noise generated by air flow.
The means of dealing with problems
The off-premises station of the described air conditioner of claim 1 includes the Air Blast fan and the horn body of turning cylinder.Horn body has bend and planar portions.Bend constitutes by the opening of Air Blast fan along rotating shaft direction generation circulation of air, and makes this opening more become more greatly near the suction side of air stream with the radius of curvature R bending.Planar portions is to extend out from the outer peripheral at least a portion in the suction side of bend.Be in the half-plane of end with the turning cylinder, the ratio Lm/R that expression has cut the radius of curvature R of the maximum Lm of length L of the planar portions in the cross section of planar portions and bend is 0.5≤Lm/R≤1.5.
For the off-premises station of this air conditioner, planar portions is from the local at least continuity of the outer rim of bend suction side.Therefore, planar portions can suppress to be inhaled into the air of horn body at the outer rim place of bend suction side one-tenth vortex.Thereby, can near the outer rim of bend suction side, reduce the turbulent flow that air flows, reduce empty noise generated by air flow.The reduction effect of this noise is relevant with the radius of curvature R of planar portions length L and bend, wishes in 0.5≤Lm/R≤1.5 scopes and the inventor finds the ratio Lm/R of the radius of curvature R of the maximum Lm of planar portions length L and bend.Because the off-premises station of this air conditioner possesses the horn body that adapts with this condition, so can further reduce the noise that air produces.
The described air conditioner of claim 2 is based on the off-premises station of the described air conditioner of claim 1, planar portions across opening be oppositely arranged.
For the off-premises station of this air conditioner, planar portions is oppositely arranged with clipping opening.Therefore, for the off-premises station of this air conditioner, can reduce the deviation of air-supply sound.
The off-premises station of the described air conditioner of claim 3 is based on the off-premises station of claim 1 or 2 described air conditioners, and horn body has the rib between planar portions of being crossed on and bend.This rib uprightly is provided with from the curved interior surface that blows out side surface and bend of planar portions, and the crest line indent of rib is near planar portions and bend.
Under the situation that is provided with planar portions on the horn body, wish between bend and planar portions, to establish rib with humidification.But when this rib became the obstruction of air stream, noise easily took place in air stream.
For the off-premises station of this air conditioner, rib uprightly is provided with from the curved interior surface that blows out side surface and bend of planar portions, and the crest line of rib concaves near planar portions and bend.Therefore, reduced rib the edge has been provided with the bend of rib side and the surperficial flow air turbulent flow of planar portions.Thereby, can reduce the possibility that produces noise by rib to the off-premises station of this air conditioner.
The off-premises station of the described air conditioner of claim 4 possesses the 1st Air Blast fan that the 1st turning cylinder is arranged, and the 1st horn body has the Air Blast fan and the 2nd horn body of the 2nd turning cylinder.The 1st horn body has the 1st bend and the 1st planar portions.The 1st bend constitutes the opening that air stream can flow through, and makes this opening enlarge gradually towards the suction side of air stream with radius of curvature R 1 bending, and this air stream is produced along the 1st rotating shaft direction by the 1st Air Blast fan.The 1st planar portions is from the local at least continuity of the outer rim of the suction side of the 1st bend.The 2nd Air Blast fan and the 1st Air Blast fan are arranged side by side.The 2nd horn body and the 1st horn body are arranged side by side, and have the 2nd bend and the 2nd planar portions.The 2nd bend constitutes the opening that air stream can flow through, and this opening enlarges gradually with the suction side of radius of curvature R 2 bendings towards air stream, and this air stream is produced towards the 1st rotating shaft direction by the 1st Air Blast fan.The 2nd planar portions is from least a portion continuity of the outer rim of the suction side of the 2nd bend.Be in the half-plane of end with the 1st turning cylinder, the ratio Lm1/R1 that expression has cut the radius of curvature R 1 of the maximum Lm1 of L1 of the 1st planar portions length in the cross section of the 1st planar portions and the 1st bend is 0.5≤Lm1/R1≤1.5.In addition, be in the half-plane of end with the 2nd turning cylinder, the ratio Lm2/R2 that expression has cut the radius of curvature R 2 of the maximum Lm2 of the 2nd planar portions length L 2 in the cross section of the 2nd planar portions and the 2nd bend is 0.5≤Lm2/R2≤1.5.Except near the approaching part of the 1st bend and the 2nd bend, just establish the 1st planar portions and the 2nd planar portions.
For the off-premises station of the described air conditioner of claim 4, the 1st planar portions is from least a portion continuity of the outer rim of the suction side of the 1st bend.Continue the 2nd planar portions from least a portion of the outer rim of the suction side of the 2nd bend.Therefore, the air that can suppress to be inhaled into the 1st horn body and the 2nd horn body becomes vortex near the outer rim of the 1st bend and the suction side of the 2nd bend.Thereby the suction side outer rim that can reduce the 1st bend and the 2nd bend makes air become turbulent flow, can reduce empty noise generated by air flow.It is relevant with the radius of curvature R 1 of the 1st planar portions length L 1 and the 1st bend that this noise reduces effect, it is the scope of 0.5≤Lm1/R1≤1.5 that the inventor finds preferably to make the ratio Lm1/R1 of the radius of curvature R 1 of the maximum Lm1 of the 1st planar portions length L 1 and the 1st bend, similarly, preferably making the ratio Lm2/R2 of the radius of curvature R 2 of the maximum Lm2 of the 2nd planar portions length L 2 and the 2nd bend is the scope of 0.5≤Lm2/R2≤1.5.Because the off-premises station of this air conditioner possesses the 1st horn body and the 2nd horn body of this condition, can further reduce empty noise generated by air flow.
In addition, under the situation that the 1st horn body and the 2nd horn body are arranged side by side,, preferably the 1st horn body and the 2nd horn body are closely disposed from the off-premises station that suppresses air conditioner this viewpoint that maximizes.
For the off-premises station of this air conditioner, except near the approaching part of the 1st bend and the 2nd bend, just establish the 1st planar portions and the 2nd planar portions.Therefore, must worry the 1st planar portions and the 2nd planar portions mutual obstruction problem when being adjacent to the 1st horn body and the 2nd horn body are set hardly.Therefore, be easy to be provided with the 1st horn body and the 2nd horn body very near, thereby the off-premises station that can suppress air conditioner maximizes.
The off-premises station of the described air conditioner of claim 5 is the off-premises station of the described air conditioner of claim 4, and the 1st horn body outer rim and the 2nd horn body outer rim are square basically.
Be arranged side by side under the situation at the 1st horn body and the 2nd horn body,, then between the 1st horn body and the 2nd horn body, be easy to generate the gap if the 1st horn body and the 2nd horn body are circular.
But for the off-premises station of this air conditioner, the outer rim of the outer rim of the 1st horn body and the 2nd horn body is slightly square.Therefore, even when being arranged side by side the 1st horn body and the 2nd horn body, between the horn body planar portions, also be difficult for producing at interval.
Description of drawings
Fig. 1 is the outside drawing of off-premises station of the air conditioner of the 1st form of implementation.
Fig. 2 is the side cross-sectional, view of off-premises station.
Fig. 3 is the front view of header board.
Fig. 4 is the front view of horn body.
Fig. 5 is the left view of horn body.
Fig. 6 is the sectional view of horn body.
Fig. 7 is near the sectional view of the horn body the rib.
Fig. 8 illustrates the experimental condition figure that noise reduces effect test.
Fig. 9 is the curve that noise reduces the result of the test of effect test.
Figure 10 is the result of the test table that noise reduces effect test
Figure 11 is the outside drawing of the air conditioner of the 2nd form of implementation.
Figure 12 is the front view (rear side) of header board, the 1st horn body and the 2nd horn body.
Figure 13 is the sectional view of the 1st horn body.
Figure 14 is the sectional view of the 2nd horn body.
Figure 15 is the front view of existing horn body.
Figure 16 is the sectional view of existing horn body.
The specific embodiment
[overall structure]
The outward appearance of the air conditioner 1 that the utility model the 1st embodiment is adopted as shown in Figure 1.Air conditioner 1 is a kind of by being configured in indoor indoor set 2 and being configured in the separate type air conditioner that outdoor off-premises station 2 constitutes.Among the figure,, also can connect many indoor sets 2 by an off-premises station 3 though 1 indoor set 2 is connected with off-premises station 3.
[the concise and to the point formation of off-premises station]
Off-premises station 3 has the shell 4 of box-shaped, and the inside of this shell 4 is separated into the breather chamber SP1 that lays respectively at the left and right sides and 2 spaces of Machine Room SP2 by dividing plate.
The breather chamber SP1 that is positioned at the left side is used for disposed chamber's outer heat-exchanger, through the space that the air of this outdoor heat converter heat exchange passes through.In the front of shell 4 header board 40 is set.Header board 40 is formed by sheet metal, and establishes a blow-off outlet 41.Clathrate catch net 42 is located on the front of blow-off outlet 41.Air is inhaled in the breather chamber SP1 from the back side of off-premises station 3, and discharges from blow-off outlet 41.The rear side opening of breather chamber SP1, outdoor air enters breather chamber SP1 from the rear side of breather chamber SP1.
The Machine Room SP2 that is positioned at the right side is the space that is separated by with breather chamber with to a certain degree, and compressor, four-way cock valve, electronic device installing plate are contained in this space.
As shown in Figure 2, outdoor heat converter 5, fan electromotor frame 6, fan electromotor 7, Air Blast fan 8 and horn body 9 etc. are installed in the breather chamber SP1.Fig. 2 is the pattern diagram of the side section of off-premises station 3, but for the ease of understanding, shows fan electromotor frame 6, fan electromotor 7 and Air Blast fan 8 as side view.
[formation of header board 40]
Fig. 3 illustrates the front view of header board 40.
Header board planar portions 44 is plate-shaped members, covers the front of off-premises station 3.Near the central authorities of header board planar portions 44, the blow-off outlet 41 that is made of circular open is set.
As shown in Figure 2, blow out portion 45 and be the edge's continuity from blow-off outlet 41, side-prominent annulus to off-premises station 3 in constitutes the circular open by the circulation of air of Air Blast fan 8 generations.Formed small cambered surface blowing out on the continuous part of portion 45 and blow-off outlet 41.Blow out portion 45 be covered with Air Blast fan 8 front part around.
[formation of horn body 9]
Fig. 4 illustrates the front view of horn body 9, and Fig. 5 illustrates the left side view of horn body 9.Fig. 4 is the figure that sees horn body 9 from front face side.
At the turning cylinder with Air Blast fan 8 is in the plane of end, the length of the planar portions 93 in the cross section that has cut planar portions 93 is defined as the planar portions length L, the distance of this length L representative from the outer rim of the suction side of bend 92 to the outer rim of planar portions 93, for the outer rim that realizes planar portions 94 becomes along the shape of horn body 9 outer rims, and adopt the each several part different value.The maximum Lm of planar portions length L is the distance from the outer peripheral edges of bend 92 to square corners, and for this horn body 9, the maximum Lm of planar portions length L and the ratio Lm/R of the radius of curvature R of bend 92 equal 1.
In the present embodiment, because planar portions 93 is substantially parallel with diametric(al), with smooth connection of suction side outer rim of the bend 92 that relatively rotates crooked about 90 degree of direction of principal axis, so the planar portions length L also may be defined as from the length of the planar portions 93 of the outward extending radioactive ray direction of open centre.
Be provided with a plurality of ribs 94 on this horn body 9, these ribs 94 are staggered with the circumferencial direction of the outer peripheral edges of bend 92, are connected across 92 of planar portions 93 and bends.Rib 94 erects from the curved interior surface that blows out side surface and bend of planar portions 93.Fig. 7 illustrates the sectional view that rib 94 is being set of horn body 9.The knuckle line of rib 94 concaves near planar portions 93 and bend 92, and rib 94 is L shaped for the cross sectional shape of pressing bend 92 and planar portions 93 basically.
[feature]
(1)
For the off-premises station 3 of this air conditioner 1, as shown in Figure 6, slightly continue planar portions 93 abreast along diametric(al) from the outer peripheral edges of the suction side of bend 92.Therefore, suppressed to be inhaled into the horn body 9 interior outer peripheral edges of air and be turbulent flow in the suction side of bend 92.Thereby the suction side outer peripheral edges that reduced bend 92 cause the turbulent flow of air stream.Reduced empty noise generated by air flow.
The reduction effect of this noise is relevant with the radius of curvature R of planar portions length L and bend 92, and it is 0.5≤Lm/R≤1.5 that inventor of the present utility model finds to select the ratio Lm/R of the radius of curvature R of the maximum Lm of planar portions length L and bend 92.
Fig. 8 to Figure 10 illustrates to relate to and reduces experimental condition and the result of the test that noise is given birth in the air miscarriage.
In this test, as shown in Figure 8, measure the air-supply noise level of the off-premises station 3 that possesses various horn bodies 9 for the different multiple horn body 9 of planar portions length L.Test is to be under the 30mm condition to radius of curvature, selects planar portions length L=0,15,30 for use, and totally four kinds of horn bodies 9 of 45mm carries out.The outer rim of testing used horn body 9 is circular, and the planar portions length L of each horn body 9 is certain.That is, the planar portions length L equals the maximum Lm of planar portions length.For each horn body 9, certain substantially to the power of fan electromotor input, the air quantity that Air Blast fan produces is also certain.
Fig. 9 is the curve of expression result of the test, and Figure 10 represents the experimental result table.
According to Fig. 9 and Figure 10 as can be known, if compare L/R=0.5, L/R=1, all decline to some extent of air-supply noise under any situation of L/R=1.5 with the situation of the L/R=0 of no planar portions 93.At L/R=0.5, L/R=1, under these three kinds of situations of L/R=1.5, the situation of L/R=1 air-supply noise falls minimumly.
As mentioned above, for the horn body on being installed on off-premises station 39, the ratio Lm/R of the radius of curvature R of the maximum Lm of planar portions length L and bend 92 should select Lm/R=1.Therefore, this off-premises station 3 can be even lower empty noise generated by air flow.
(2)
If planar portions 93 is set on horn body 9, to compare with the horn body of the prior art that does not almost have planar portions 93 shown in Figure 16, the size of horn body 9 must increase.On the other hand, from the miniaturization viewpoint of the off-premises station 3 of air conditioner 1, wish that the size of controlling horn body 9 as much as possible increases.
For the off-premises station 3 of this air conditioner, planar portions 93 is not arranged on the whole circumference direction of outer peripheral edges of bend 92, and only is provided in a side of on the part.Therefore, the planar portions 93 of horn body 9 is than the situation of its round-shaped outer peripheral edges greater than bend 92, and the size that can suppress horn body 9 increases.
(3)
Under planar portions 93 is arranged on situation on the horn body 9,, require design rib 94 on the surface of bend 92 and planar portions 93 in order to improve intensity.On the other hand, flowing through horn body 9 ambient airs flows to toward the surface along horn body 9 mobile.That is, air stream also flows through the curved interior surface that blows out side surface and bend of planar portions 93.When rib 94 hindered this air to flow, air stream just was easy to generate noise.
But for the off-premises station 3 of this air conditioner, rib 94 is uprightly to be arranged on the curved interior surface that blows out side surface and bend 92 of planar portions 93, and its crest line 99 inwardly is recessed near planar portions 93 and bend 92.Therefore, can reduce rib 94 hinders along bend 92 that has designed rib 94 those sides and planar portions 93 flow air stream.That is, be provided with under the situation of rib 94 on bend 92 and planar portions 93, the rib shape is the shape slightly triangular in shape that connects the curved interior surface that blows out side surface and bend 92 of planar portions 93 in the shortest mode as chain-dotted line is represented among Fig. 7 usually.But this triangle hinders giving birth to towards the circumferencial direction flow air miscarriage of bend 92 along the curved interior surface that blows out side surface and bend of planar portions 93 easily.Thereby, probably can increase the noise that air stream is produced.But,, flow so must worry hardly to hinder along the air of the circumferencial direction of bend 92 because rib 94 takes its crest line inwardly to be recessed near planar portions 93 and bend 92.Therefore, the increase that rib 94 can suppress noise is set.
The 2nd form of implementation
The outward appearance of the off-premises station 300 of the air conditioner 100 that the 2nd form of implementation of the present utility model adopts as shown in figure 11.Air conditioner 100 is identical with the air conditioner 1 of the 1st form of implementation, is a kind of separate type air conditioner that is divided into the off-premises station 300 that is configured in outside indoor indoor set 2 and the disposed chamber.Off-premises station 300 possesses in inside with the 1st Air Blast fan 81 of the 1st turning cylinder with two Air Blast fans of the 2nd Air Blast fan 82 of the 2nd turning cylinder.The 1st blow-off outlet 47 and the 2nd blow-off outlet 48 totally 2 blow-off outlets on the header board 46 of off-premises station 300, have been designed.The 1st turning cylinder of the 1st Air Blast fan 81 and the 2nd Air Blast fan 82 and the 2nd turning cylinder are configured in parallel up and down.The 1st blow-off outlet 47 and the 2nd blow-off outlet 48 corresponding the 1st Air Blast fans 81 and the 2nd Air Blast fan 82 are also disposing up and down abreast.
Figure 12 illustrates from rear side and sees the header board 46 that the 1st horn body 95 and the 2nd horn body 96 states have been installed.
The 1st horn body 95 and the 2nd horn body 96 have the shape identical with the horn body 9 of the 1st form of implementation respectively, and respectively corresponding the 1st blow-off outlet 47 and the 2nd blow-off outlet 48 are installed up and down side by side.The 1st horn body 95 has the 1st cylindrical portion 95a, the 1st bend 95b and the 1st planar portions 95c.The 2nd horn body 96 has the 2nd cylindrical portion 96a, the 2nd bend 96b and the 2nd planar portions 96c.The 1st cylindrical portion 95a is identical with the shape of the cylindrical portion 91 of the horn body 9 of the 1st form of implementation with the 2nd cylindrical portion 96a, and the 1st bend 95b is identical with the shape of bend 92 with the 2nd bend 96b.The 1st planar portions 95c is identical with the shape of planar portions 93 with the 2nd planar portions 96c.The outer rim of the outer rim of the 1st horn body 95 and above-mentioned the 2nd horn body 96 is respectively square, and the 1st horn body 95 is closely disposing so that exterior rim separately is relative with the 2nd horn body 96.That is, make the straight line portion of the 1st bend 95b do not establish the 1st planar portions 95c and the straight line portion of not establishing the 2nd bend 96b of the 2nd planar portions 96c closely dispose the 1st horn body 95 and the 2nd horn body 96 mutually.
Figure 13 illustrates the sectional view of the 1st horn body 95, and Figure 14 illustrates the sectional view of the 2nd horn body 96.
Be in the half-plane of end with the 1st turning cylinder, it is Lm1/R1=1 that the ratio Lm1/R1 of the radius of curvature R 1 of the maximum Lm1 of L1 of the 1st planar portions 95c length in the cross section of the 1st planar portions 95c and the 1st bend 95b has been removed in expression.In addition, in the 2nd turning cylinder was the half-plane of end, the ratio Lm2/R2 that expression has cut the radius of curvature R 2 of the maximum Lm2 of L2 of the 2nd planar portions 96c length in the cross section of the 2nd planar portions 96c and the 2nd bend 96b was Lm2/R2=1.
[feature]
Suction side outer peripheral edges for off-premises station 300, the 1 bend 95b of this air conditioner 100 extend the 1st planar portions 95c that is basically parallel to radially.Suction side outer peripheral edges along the 2nd bend 96b extend the 2nd planar portions 96c that is basically parallel to radially.The ratio Lm1/R1=1 of the maximum Lm1 of the 1st plane minister L1 and the radius of curvature R 1 of the 1st bend 95b, the ratio Lm2/R2=1 of the maximum Lm2 of the 2nd plane minister L2 and the radius of curvature R 2 of the 2nd bend 96b.Therefore, the same with the off-premises station 3 of the air conditioner 1 of the 1st form of implementation, can reduce empty noise generated by air flow.
Under the situation that the 1st horn body 95 and the 2nd horn body 96 are arranged side by side,, wish the 1st horn body 95 and the 2nd horn body 96 are closely disposed from the viewpoint that the off-premises station 300 that suppresses air conditioner 100 maximizes.But, if when the 1st planar portions 95c and the 2nd planar portions 96c are designed to respectively all cover the 1st bend 95b and the 2nd bend 96b, will worry to locate the 1st planar portions 95c and the 2nd planar portions 96c is overlapping near part at the 1st horn body 95 and the 2nd horn body 96.Thereby, not overlapping in order to ensure the 1st planar portions 95c and the 2nd planar portions 96c, be necessary and make the 1st horn body 95 and the 2nd horn body 96 keep the configuration of certain intervals ground.Therefore, tend to worry the maximization of the off-premises station 300 of air conditioner 100.
But, for the off-premises station 300 of this air conditioner 100, the 1st horn body 95 and the 2nd horn body 95 are configured to not establish the 1st planar portions 95c the 1st bend 95b straight line portion and not establish the straight line portion of the 2nd bend 96b of the 2nd planar portions 96c close.That is,, except the approaching part of the 1st bend 95b and the 2nd bend 96b, just establish the 1st planar portions 95c and the 2nd planar portions 96c for the 1st horn body 95 and the 2nd horn body 96.Therefore, the 1st planar portions 95c and the 2nd planar portions 96c can not hinder and make the 1st horn body 95 and the 2nd horn body 96 near being provided with.Thereby, can be the 1st horn body 95 and the close configuration of the 2nd horn body.Therefore, suppressed the maximization of the off-premises station 300 of air conditioner 100.
[other form of implementation]
(1)
In above-mentioned the 1st form of implementation, planar portions 93 extends from 4 circular-arc parts of the outer peripheral edges of bend 92 respectively.That is, planar portions 93 is not arranged on the whole circumference direction of outer peripheral edges of bend 92, and only is located at the part.But being provided with in the inside of off-premises station 3 has in the space when more than needed, also can on the whole circumference direction of the outer peripheral edges of bend 92 planar portions 93 be set.Therefore, also can reduce empty noise generated by air flow.
In the above-described embodiments, though change the planar portions length L for the outer rim that makes horn body 9 becomes square shape, from reducing the viewpoint of noise, it is certain that radical length L also can keep.That is, the outer rim of planar portions 93 also can be set at circular arc, and is perhaps circular.In addition, also can change the planar portions length L, so that the outer rim of horn body 9 becomes the polygon except that square.Even in these cases,, therefore, still can suppress the turbulent flow of air stream and suppress noise owing to there is planar portions 93.
(2)
In above-mentioned the 1st form of implementation, the ratio Lm/R of the radius of curvature R of the maximum Lm of planar portions length L and bend 92 is Lm/R=1.For above-mentioned the 2nd form of implementation, the ratio Lm1/R1 of the radius of curvature R 1 of the maximum Lm1 of the 1st planar portions length L 1 and the 1st bend 95b is Lm1/R1=1, and the ratio Lm2/R2 of the radius of curvature R 2 of the maximum Lm2 of the 2nd planar portions length L 2 and the 2nd bend 96b is Lm2/R2=1.Can know clearly according to above-mentioned test, though best Lm/R, Lm1/R1, Lm2/R2 selects to equal 1, but if in 0.5≤Lm/R≤1.5,0.5≤Lm1/R1≤1.5,0.5 in the scope of≤Lm2/R2≤1.5, still can reduce the noise result that air stream is produced fully.
(3)
The outer rim shape of horn body 9 is not limited to square, can also be the polygon except that square.On the 1st bend 95b of the 1st horn body 95 and the 2nd bend 96b of the 2nd horn body 96 4 straight line portioies are set respectively, but are being on the straight line near part of the 1st horn body 95 and the 2nd horn body 96, other parts also can be circular-arc.Even in this case, can closely dispose the 1st horn body 95 and the 2nd horn body 96, and can suppress the maximization of off-premises station 3.
(4)
For above-mentioned the 2nd form of implementation,, be not limited to the 1st horn body 95 and the 2nd horn body 96 are done configuration up and down though the 1st horn body 95 and the 2nd horn body 96 dispose 2 up and down.If the 1st Air Blast fan 81 and the 2nd Air Blast fan 82 are the configuration of ground, position, the left and right sides, then should be with the 1st horn body 95 and the 2nd horn body about 96 and row arrangement, so that consistent with the configuration of the 1st Air Blast fan 81 and the 2nd Air Blast fan 82.
Except the 1st horn body 95 and the 2nd horn body 96, also can increase a plurality of horn bodies such as the 3rd horn body and the 4th horn body.
(5)
For above-mentioned the 1st form of implementation, the opening of horn body 9 is circular, and bend 92 also constitutes circular open, but also can establish squarely on horn body 9, or polygon such as hexagon or ellipse wait other shaped aperture.
For the 1st bend 95b of the 2nd form of implementation and the 2nd bend 96b too.
(6)
For above-mentioned the 1st form of implementation, though planar portions 93 is parallel with diametric(al), planar portions 93 also can extend from the outer rim of bend 92, needn't be parallel with diametric(al).
For the 1st planar portions 95c of the 2nd form of implementation and the 2nd planar portions 96c too.
The invention effect
For the off-premises station of the described air conditioner of claim 1, planar portions is from the local at least continuity of the outer rim of bend suction side.Therefore, planar portions can suppress to be inhaled into the air of horn body at the outer rim place of bend suction side one-tenth vortex.Thereby, can near the outer rim of bend suction side, reduce the turbulent flow that air flows, reduce empty noise generated by air flow.Wish in 0.5≤Lm/R≤1.5 scopes and the inventor finds the ratio Lm/R of the radius of curvature R of the maximum Lm of planar portions length L and bend the reduction effect of this noise and the radius of curvature R and the pass of planar portions length L and bend.Because the off-premises station of this air conditioner possesses the horn body that adapts with this condition, so can reduce empty noise generated by air flow.
For the described air conditioner of claim 2, planar portions is oppositely arranged with clipping opening.Therefore, for the off-premises station of this air conditioner, can reduce the deviation of air output.
For the off-premises station of the described air conditioner of claim 3, rib uprightly is provided with from the curved interior surface that blows out side surface and bend of planar portions, and the crest line of rib inwardly is recessed near planar portions and bend.Therefore, reduced rib the edge has been provided with the bend of rib side and the surperficial flow air turbulent flow of planar portions.Thereby, can reduce the possibility that produces noise by rib to the off-premises station of this air conditioner.
For the off-premises station of the described air conditioner of claim 4, the 1st planar portions extends from least a portion of the outer rim of the suction side of the 1st bend.Local at least the 2nd planar portions that extends from the outer rim of the suction side of the 2nd bend.Therefore, the air that can suppress to be inhaled into the 1st horn body and the 2nd horn body becomes vortex near the outer rim of the 1st bend and the suction side of the 2nd bend.Thereby the suction side outer rim that can reduce the 1st bend and the 2nd bend makes air become turbulent flow, can reduce empty noise generated by air flow.It is relevant with the radius of curvature R 1 of the 1st planar portions length L 1 and the 1st bend that this noise reduces effect, it is the scope of 0.5≤Lm1/R1≤1.5 that the inventor finds preferably to make the ratio Lm1/R1 of the radius of curvature R 1 of the maximum Lm1 of the 1st planar portions length L 1 and the 1st bend, similarly, preferably making the ratio Lm2/R2 of the radius of curvature R 2 of the maximum Lm2 of the 2nd planar portions length L 2 and the 2nd bend is the scope of 0.5≤Lm2/R2≤1.5.Because the off-premises station of this air conditioner possesses the 1st horn body and the 2nd horn body of this condition, can further reduce empty noise generated by air flow.
In addition, under the situation that the 1st horn body and the 2nd horn body are arranged side by side,, preferably the 1st horn body and the 2nd horn body are disposed adjacent to each other from the off-premises station that suppresses air conditioner this viewpoint that maximizes.
For the off-premises station of this air conditioner, except near the approaching part of the 1st bend and the 2nd bend, just establish the 1st planar portions and the 2nd planar portions.Therefore, must worry the 1st planar portions and the obstruction problem of the 2nd planar portions when near-earth is provided with the 1st horn body and the 2nd horn body mutually hardly.Therefore, be easy to be provided with the 1st horn body and the 2nd horn body very near, thereby can suppress the maximization of the off-premises station of air conditioner.
For the off-premises station of the described air conditioner of claim 5, the outer rim of the outer rim of the 1st horn body and the 2nd horn body is slightly square.Therefore, even when being arranged side by side the 1st horn body and the 2nd horn body, between the horn body planar portions, also be difficult for producing at interval.
Claims (5)
1. the off-premises station of an air conditioner, this off-premises station comprises:
Have turning cylinder Air Blast fan (8) and
Horn body (9), this horn body (9) has bend (92) and planar portions (93), above-mentioned bend (92) constitutes by the opening of above-mentioned Air Blast fan (8) along the circulation of air of above-mentioned rotating shaft direction generation, and the suction side that makes the more close air of this opening flow with the radius of curvature R bending becomes more greatly, above-mentioned planar portions (93) extends out from outer peripheral at least a portion in suction side of above-mentioned bend (92), it is characterized in that:
Be in the half-plane of end with the turning cylinder, the ratio Lm/R that expression has cut the radius of curvature R of the maximum Lm of length L of the above-mentioned planar portions (93) in the cross section of above-mentioned planar portions (93) and above-mentioned bend (92) is 0.5≤Lm/R≤1.5.
2. the off-premises station of air conditioner according to claim 1 is characterized in that, above-mentioned planar portions (93) across opening be oppositely arranged.
3. the off-premises station of air conditioner according to claim 1 and 2, it is characterized in that, above-mentioned horn body (9) has the rib (94) between planar portions of being crossed on and bend, this rib (94) uprightly is provided with from the curved interior surface that blows out side surface and above-mentioned bend (92) of above-mentioned planar portions (93), and the crest line of above-mentioned rib (94) concaves near above-mentioned planar portions (93) and above-mentioned bend (92).
4. the off-premises station of an air conditioner, this off-premises station possesses:
The 1st Air Blast fan (81) with the 1st turning cylinder;
The 1st horn body (95), above-mentioned the 1st horn body (95) has the 1st bend (95b) and the 1st planar portions (95c), above-mentioned the 1st bend (95b) constitutes the opening that air stream can flow through, and make this opening enlarge gradually towards the suction side of air stream with radius of curvature R 1 bending, this air stream is produced by the 1st Air Blast fan and flows towards the 1st rotating shaft direction, and above-mentioned the 1st planar portions (95c) is from the local at least continuity of the outer rim of the suction side of above-mentioned the 1st bend (95b);
The 2nd Air Blast fan (82), itself and above-mentioned the 1st Air Blast fan (81) are arranged side by side, and have second turning cylinder;
The 2nd horn body (96), above-mentioned the 2nd horn body (96) is arranged side by side with above-mentioned the 1st horn body (95), and have the 2nd bend (96b) and the 2nd planar portions (96c), above-mentioned the 2nd bend (96b) constitutes the opening that air stream can flow through, and make this opening enlarge gradually towards the suction side of air stream with radius of curvature R 2 bendings, this air stream is produced by the 1st Air Blast fan and flows towards the 1st rotating shaft direction, and above-mentioned the 2nd planar portions (96c) is from the local at least continuity of the outer rim of the suction side of above-mentioned the 2nd bend (96b); It is characterized in that,
Be in the half-plane of end with the 1st turning cylinder, the ratio Lm1/R1 that expression has cut the radius of curvature R 1 of the maximum Lm1 of L1 of above-mentioned the 1st planar portions (95c) length in the cross section of above-mentioned the 1st planar portions (95c) and above-mentioned the 1st bend (95b) is 0.5≤Lm1/R1≤1.5;
Be in the half-plane of end with the 2nd turning cylinder, the ratio Lm2/R2 that expression has cut the radius of curvature R 2 of the maximum Lm2 of above-mentioned the 2nd planar portions (96c) length L 2 in the cross section of above-mentioned the 2nd planar portions (96c) and above-mentioned the 2nd bend (96b) is 0.5≤Lm2/R2≤1.5;
Except near the approaching part of above-mentioned the 1st bend (95b) and above-mentioned the 2nd bend (96b), just establish above-mentioned the 1st planar portions (95c) and above-mentioned the 2nd planar portions (96c).
5. the off-premises station of air conditioner according to claim 4 is characterized in that, the outer rim of the outer rim of above-mentioned the 1st horn body (95) and above-mentioned the 2nd horn body (96) is square basically.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP382588/2002 | 2002-12-27 | ||
| JP2002382588A JP2004211971A (en) | 2002-12-27 | 2002-12-27 | Outdoor unit of air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2700746Y true CN2700746Y (en) | 2005-05-18 |
Family
ID=32818101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03242751 Expired - Lifetime CN2700746Y (en) | 2002-12-27 | 2003-03-28 | Outdoor machine of air conditioner |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2004211971A (en) |
| CN (1) | CN2700746Y (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4521867B2 (en) * | 2004-10-19 | 2010-08-11 | 日立アプライアンス株式会社 | Air conditioner outdoor unit |
| KR101229339B1 (en) * | 2005-06-23 | 2013-02-05 | 삼성전자주식회사 | air cleaner |
| JP2007003134A (en) * | 2005-06-27 | 2007-01-11 | Matsushita Electric Ind Co Ltd | Cooling device for air conditioner |
| JP5322900B2 (en) | 2009-11-27 | 2013-10-23 | 三洋電機株式会社 | Bell mouth structure of blower |
| JP2021162172A (en) * | 2020-03-30 | 2021-10-11 | 株式会社富士通ゼネラル | Outdoor unit of air conditioner |
-
2002
- 2002-12-27 JP JP2002382588A patent/JP2004211971A/en active Pending
-
2003
- 2003-03-28 CN CN 03242751 patent/CN2700746Y/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2004211971A (en) | 2004-07-29 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Expiration termination date: 20130328 Granted publication date: 20050518 |