CN1216255C - Air conditioner - Google Patents
Air conditioner Download PDFInfo
- Publication number
- CN1216255C CN1216255C CN018212379A CN01821237A CN1216255C CN 1216255 C CN1216255 C CN 1216255C CN 018212379 A CN018212379 A CN 018212379A CN 01821237 A CN01821237 A CN 01821237A CN 1216255 C CN1216255 C CN 1216255C
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- Prior art keywords
- lath
- radially
- annular
- air
- concentric ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/56—Casing or covers of separate outdoor units, e.g. fan guards
- F24F1/58—Separate protective covers for outdoor units, e.g. solar guards, snow shields or camouflage
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
- F24F1/022—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing comprising a compressor cycle
- F24F1/027—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing comprising a compressor cycle mounted in wall openings, e.g. in windows
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/46—Component arrangements in separate outdoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/46—Component arrangements in separate outdoor units
- F24F1/48—Component arrangements in separate outdoor units characterised by air airflow, e.g. inlet or outlet airflow
- F24F1/54—Inlet and outlet arranged on opposite sides
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/082—Grilles, registers or guards
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Other Air-Conditioning Systems (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
An air conditioner comprising, provided on an enclosure (10), an air outlet (18) for discharging and guiding to the outside heat-exchanged air after supplied to an outdoor heat exchanger (14) and heat-exchanged there, and a fan guard (20) attached to the air outlet (18) to ensure a ventilating area for heat-exchanged air and preventing entry of objects to the inside, wherein the fan guard (20) comprises, integrally molded by using a synthetic resin material, a plurality of circular ribs (24) concentrically provided at a specified pitch, and a plurality of radial strips (25) crossing the circular ribs (24) and provided radially from the center to the outermost periphery of the ribs (24), the radial strips (25) being provided on concentric circles between the ribs (24) with their arrangements on the concentric circles staggered alternately.
Description
Technical field
The present invention relates to air conditioner, more particularly, relate to a kind ofly by concentric annular lath and the radially improvement of the fan shroud that constitutes of lath, this fan shroud is installed in an exit, sends into heat exchanger and is directed and drains into the external world through heat-exchanged air by this outlet.
Background technology
Separate type air conditioner has obtained extensive use, and it is made up of indoor set and off-premises station, and the former is arranged on and will carries out the indoor of air conditioning, and the latter is arranged in the open, and is communicated with the former by refrigerant tubing or analog.
Specifically, off-premises station comprises a heat exchanger and an outdoor fan that is arranged in the casing, and they toward each other and become the main body of off-premises station.In addition, the back side of casing and both sides are provided with some inlets, and are provided with an outlet in the casing front.
Specifically, because outlet is located at the front of casing, it is contemplated that the mistake that someone will stretches into casing with finger, or have object to enter casing.For addressing this problem, install one in the exit and prevent to point the fan shroud that enters with object, and requirement does not hinder the discharge of the air of heat exchange.
Usually, the off-premises station front as shown in figure 13.The front of passing casing 101 has outlet 102, and fan shroud 103 is housed thereon.Fan shroud 103 comprises a plurality of annular laths 104 that are provided with one heart with a determining deviation, and the radially lath 105 that intersects of a plurality of and annular lath 104, and all radially laths 105 radially extend to its most peripheral from the center of annular lath 104.
All annular laths 104 and molded the forming of for example available synthetic resin material of lath 105 radially.Go up from geometry, radially lath 105 is when the center of close annular lath 104 for each, and the interval between them can diminish.Much less, each radially lath 105 want to guarantee necessary intensity in the design at the interval at fan shroud 103 most peripheral places.
In common fan shroud 103, radially the interval between the lath 105 is determined according to the required design strength of most peripheral.Therefore, when more close annular lath 104 centers, it is more intensive to want at interval beguine to calculate required interval according to the intensitometer of fan shroud.This layout causes radially, and 105 pairs of air-flows of lath produce bigger resistance.
Because looping the lath 104 and radially insufficient strength of the synthetic resin material of lath 105 is big, so in order to gain in strength, these laths of making just have very big wall thickness, the result causes actual air draft area to reduce shortcoming with the exhaust resistance increase.
Summary of the invention
In the air conditioner according to one aspect of the invention, it has a heat exchanger and a fan that is arranged in the casing, and fan will treat that the air of heat exchange delivers to heat exchanger, so that air carries out heat exchange.This air conditioner comprises: an outlet, and this outlet is located in the described casing, and after air was transported to heat exchanger and carries out heat exchange therein, guiding and discharging were arrived extraneous through the air of heat exchange; An and fan shroud, described fan shroud is installed in the described outlet, guaranteeing in the air draft area of the air of heat exchange, it is inner to stop object to be invaded, wherein, the radially lath that described fan shroud comprises a plurality of annular laths that are provided with one heart with a preset space length and a plurality of and described annular lath intersects and radially be provided with to its most peripheral from all annular slat center, and, described radially lath is arranged alternately on the concentric ring between the annular lath, radially lath on the concentric ring of outermost is provided with interval Q, radially the interval of lath reduces towards interior concentric ring from the concentric ring of outermost, up to becoming at interval Q/2, and, be spaced apart on the adjacent concentric ring of a radial inward of this concentric ring of Q/2 at lath radially, be set at Q once more at interval, and reduced towards interior concentric ring.
In addition, the present invention also provides a kind of air conditioner, it has a heat exchanger and a blower fan that is arranged in the casing, described blower fan will treat that the air of heat exchange is transported to described heat exchanger, so that air carries out heat exchange, described air conditioner comprises: an outlet, and this outlet is located in the described casing, and after air was transported to heat exchanger and carries out heat exchange therein, guiding and discharging were arrived extraneous through the air of heat exchange; An and fan shroud, described fan shroud is installed in the described outlet, guaranteeing in the air draft area of the air of heat exchange, it is inner to stop object to be invaded, wherein, the radially lath that described fan shroud comprises a plurality of annular laths that are provided with one heart with a preset space length and a plurality of and described annular lath intersects and radially be provided with to its most peripheral from all annular slat center, and, described radially lath is uniformly-spaced to be arranged on the concentric ring between the annular lath, and from the most peripheral of annular lath to its center, on the concentric ring of each distance radially the number of lath successively decrease one.
The accompanying drawing summary
Fig. 1 illustrates one embodiment of the invention for the transverse plane schematic diagram of the off-premises station of formation one air conditioner;
Fig. 2 A to 2C be illustrate one embodiment of the invention an outdoor fan fan shape and the blowing characteristic key diagram;
Fig. 3 A is the front view of off-premises station with fan shroud of the present invention one first embodiment;
Fig. 3 B constitutes the annular lath of fan shroud and the front view of lath characteristic radially for explanation;
Fig. 4 is front view remodeling, that have the off-premises station of a fan shroud as first embodiment of the invention;
Fig. 5 when being equipped with the fan shroud of the fan shroud of first embodiment and an ordinary construction when outdoor fan, the running noises of outdoor fan and the characteristic curve of air output;
Fig. 6 A and 6B are the front view of off-premises station, respectively have the fan shroud as the different remodeling of first embodiment;
Fig. 7 A is the front view of off-premises station with fan shroud of the present invention's second example;
Fig. 7 B constitutes the annular lath of fan shroud and the front view of lath feature radially for explanation;
Fig. 8 is the front view of off-premises station with fan shroud of second embodiment remodeling;
Fig. 9 is the front view of a part that a fan shroud of second another remodeling of embodiment is shown;
Figure 10 A to Figure 10 D is the annular lath that is suitable for first and second embodiment and the radially planform of lath and the view of cross sectional shape;
Figure 11 A has according to the front view of a technology with reference to the off-premises station of the fan shroud of row;
Figure 11 B constitutes the annular lath of fan shroud and the front view of the feature of lath radially for explanation;
Figure 12 is the front view with off-premises station of a fan shroud; And
Figure 13 is the front view that the off-premises station with a conventional fan guard shield is shown.
The specific embodiment
Some embodiment of the present invention hereinafter are described with reference to the accompanying drawings.Fig. 1 is the horizontal cut-away view that the off-premises station 1 of the separate type air conditioner with an indoor set and an off-premises station is shown.
Among Fig. 1, label 10 expressions are as the casing of off-premises station main body, and casing 10 inside are separated into heat-exchanging chamber 12 and machine chamber 13 with dividing plate 11.An outdoor heat converter 14 L-shaped in the plane is arranged in the heat-exchanging chamber 12, also has an outdoor fan 15 to be oppositely arranged with outdoor heat converter 14.
Be provided with a compressor 16 in machine chamber 13, it is with outdoor heat converter 14, indoor heat converter and be arranged on relative assembly (not shown) in the indoor set and link to each other by refrigerant tubing and constitute a refrigeration cycle.
In contrast, inlet 17 is separately positioned on the back side of heat-exchanging chamber 12 and the side of casing 10.That is, extraneous air is by driving outdoor fan 15 in the 17 suction casings 10 that enter the mouth.
In addition, the front in heat exchanger chamber 12, an outlet 18 is arranged on the casing 10.By driving outdoor fan 15, through outdoor heat converter 14, carry out therein blowing out from exporting 18 after the heat exchange from 17 extraneous airs that suck that enter the mouth.
One fan shroud 20 that hereinafter will describe in detail is installed on outlet 18, stretches into wherein reliably to prevent finger and object.Need not say that the design of the size and dimension of fan shroud 20 makes it can not become the exhaust resistance of the air of the process heat exchanges that will pass through outlet 18 discharges.
Shown in Fig. 2 A, 2B and 2C, when drive fan 15f rotated along clockwise direction among Fig. 2 B (along the direction of arrow φ), the current rate that blows out from fan 15f was by the order along direction Va, Vb, Vc increases to the neighboring from central shaft K shown in Fig. 2 C.In addition, shown in Fig. 2 A, when blow out angle α by the order of Wa, Wb, Wc from low-angle (center of paralleling to the axis) to wide-angle (with respect to the wide-angle of axis angle) when being provided with, fan 15f has the characteristic that the intensity that blows out air-flow is increased by said sequence.
Below in detail fan shroud 20 will be described in detail.Fig. 3 A illustrates the front of casing 10, and the fan shroud 20 of first embodiment is installed in the outlet 18.Fan shroud 20 is made of with the molded lath 21 of synthetic resin material monolithic a plurality of.
Center to its most peripheral along the interval between the radially lath 25 circumferentially adjacent one another are from annular lath 24 is (the reducing gradually from most peripheral to its center of annular lath 24) that increases gradually basically.To introduce the radially setting of lath 25 below.
That is, same straight line from annular lath 24 most peripherals to its center each radially lath 25 be arranged on the concentric ring between two annular laths 24 at an interval of every tripping.Circumferentially radially lath 25 adjacent one another are is arranged on from the concentric ring between the annular lath 24 on the concentric ring between two annular laths 24 at an interval of every tripping of annular lath 24 center displacements one spacing.From above-mentioned layout as can be known, radially lath 25 is arranged alternately with respect to each concentric ring of annular lath 24.
As described later, when on the predetermined concentric ring between two annular laths 24 adjacent one another are two when radially the interval between the lath 25 reaches a predetermined space, then radially the end of one of lath 25 stops, and radially lath 25 part that is positioned at this place ahead, end distributes thinning.
This point specifies with reference to Fig. 3 B.As lath 25b radially, 25b is disposed radially in the both sides of lath 25a radially, and lath 25c radially, 25c is disposed radially at adjacent with it radially lath 25b, during the both sides of 25b, then radially lath 25a and radially lath 25c be arranged on the same concentric ring Ra between the annular lath 24, and on this concentric ring lath 25b radially not.
Radially lath 25b is arranged on the concentric ring Rb between the annular lath 24, it and which is provided with lath 25a radially and the spacing that staggers of the concentric ring Ra between the annular lath 24 of lath 25c radially.In addition, radially lath 25a and radially lath 25c be arranged on concentric ring Rb and stagger on the concentric ring Ra of a spacing.In addition, radially lath 25a and radially lath 25c be arranged on each concentric ring Ra between the annular lath 24, and radially lath 25b is arranged on each concentric ring Rb between the annular lath 24, that is, radially lath 25a and radially lath 25c and radially lath 25b by every a spacing setting.So, lath 25a radially, 25c and lath 25b radially are crisscross arranged.
Here supposition is arranged on two adjacent radially lath 25a on the most peripheral concentric ring Ra, along the circumferential Q that is spaced apart, so, is arranged on two adjacent radially lath 25b on the most peripheral concentric ring Rb between the 25c, and the circumferential interval between the 25b is slightly smaller than Q at interval.Be arranged on two adjacent radially lath 25a on the inside concentric ring Ra of concentric ring Rb, the circumferential interval between the 25c is then manyly little than interval Q.So at adjacent radial lath 25b, the circumferential interval between the 25b finally reaches the position of Q/2, lath 25b radially, the end of 25b stops.And remaining radially lath 25a, 25c then extends to the center of annular lath 24 pastly just like continuing.Thereby, lath 25a radially, the circumferential interval between the 25c reduces in turn.In addition, at adjacent radial lath 25a, circumferentially reach the position of about Q/2 between the 25c at interval, radially the end of lath 25c stops.By this way, under these conditions, dwell section is concatenated to form, till remaining radially lath 25a extends to the center of annular lath 24.
That is to say that radially lath 25b is provided with until the position of concentric ring R1, and its end that is positioned at this place ahead, position has stopped.Also have, radially lath 25c is provided with until the position of concentric ring R2, and the end in this place ahead, position, its position has stopped.Then, lath 25a radially, 25c is disposed on the position in interior week with predetermined, and its end that is positioned at this place ahead, position stops.
Note that and have only radially that lath 25a is set in place on the concentric ring R3 of the inside spacing in end that is arranged on the radially lath 25b on the concentric ring R1, and radially lath 25c is not disposed thereon.Radially lath 25c from the concentric ring R4 that is positioned at the inside spacing of concentric ring R3 every a spacing setting.
That is to say, though lath 25a radially, 25c and radially lath 25b be arranged alternately from the most peripheral of annular lath 24, the concentric ring R1 that stops first from lath 25b radially is to annular lath 24 centers, radially lath 25a and radially lath 25c be arranged alternately.
The result, though from annular lath 24 most peripherals to its center, on the same concentric ring two radially the interval between the lath 25 reduce gradually, the interval between the radially lath 25a-25a on the concentric ring R3 of the inside spacing in end that stops first from lath 25b radially but is increased to the interval Q that is substantially equal on most peripheral.Then, radially lath 25c that is arranged alternately to the center from the concentric ring R4 in the inside spacing of concentric ring R3 and the interval between the 25a then diminish successively.
As mentioned above, because the interval between the radially lath 25 of the necessary intensity of assurance fan shroud 20 can be set greatlyyer, so the number that air stream is had the radially lath 25 of big resistance can reduce.Specifically, the number of used radially lath is set at hereinafter with in the form that illustrates in the fan shroud 20.
Thereby, fan shroud 20 designs in such a way, it meets the requirement of the current rate that blows out from fan 15f, again corresponding to the blowing characteristic of outdoor fan 15, thereby reduced the exhaust resistance of fan shroud 20, and improving the blowing characteristic of outdoor fan 15 greatly, the result significantly improves heat exchange performance.
Fig. 4 illustrates the fan shroud 30 of a kind of remodeling of above-mentioned first embodiment.This fan shroud 30 is provided with two fan shrouds 20 that Fig. 3 A is illustrated simultaneously, and two fan shrouds 20 toward each other, thereby they are gone up/following direction symmetry relatively.
The internal structure (not shown) of fan shroud 30 is similar to the illustrated fan shroud of Fig. 1 20 substantially.Yet, because fan shroud 30 is the off-premises station that is used for a relatively large air conditioner, thus be provided with two cover outdoor heat converters, its up and down fan shroud perhaps be provided with the big outdoor heat converter of a cover toward each other, it extends to fan shroud up and down.In addition, because outdoor fan is oppositely arranged with fan shroud up and down, can obtain operational efficiency similar to the above.
Fig. 5 is illustrated in the off-premises station with fan shroud 20 shown in Fig. 3 A and in the off-premises station with conventional fan guard shield 3 shown in Figure 13, running noises is with the measurement result of the variation of air demand.
Can find that when using same outdoor fan 15 in fan shroud of the present invention, the running noises N1 of corresponding air demand is lower than the N2 that adopts the conventional fan guard shield.
Fig. 6 A illustrates the fan shroud 40 of a kind of remodeling of first embodiment.Notice that among Fig. 6 A, annular lath 44 is corresponding with the annular lath 24 among above-mentioned Fig. 3 A and the 3B, and radially lath 45 is corresponding with the radially lath 25 among Fig. 3 A and the 3B.
That is to say, each radially lath 45 with respect under the situation identical, being provided with above-mentioned radially lath 25 with the annular lath 44 that is formed centrally.But all radially lath 45 be arranged to a centroclinal predetermined angular with respect to annular lath 44.
Also have the effect same as the fan shroud 40 of above-mentioned design with said fans guard shield 20.
In addition, though all radially lath 45 the invention is not restricted to this with respect to a centroclinal predetermined angular of annular lath 44, they can suitably tilt along different directions, and form for example spirality on the whole.
Fig. 6 B illustrates the fan shroud 50 of first another remodeling of embodiment.This fan shroud 50 comprises one first circular plate portion 51 and one second circular plate portion 52.First circular plate portion 51 and second circular plate portion 52 are separated with the ring of a preset space length, and the diameter of this ring is about half of diameter of the ring of most peripheral, and first circular plate portion 51 is positioned at the most peripheral side, and second circular plate portion 52 is positioned at all sides.In first circular plate portion 51, from the most peripheral of annular lath 53 towards the center of the ring of preset space length, being similar to the concentric annular lath 53 of uniformly-spaced being provided with of general interval, and lath 54 radially, until the ring of this preset space length.In second circular plate portion 52, be provided with concentric annular lath 55 from position to its center of the ring of described preset space length and be arranged alternately radially lath 56 on the concentric ring between the concentric annular lath 55.This fan shroud 50 has the effect identical with said fans guard shield 20.
Fig. 7 A illustrates the fan shroud 60 of second embodiment of the invention.It comprises a plurality of annular laths 64 that are provided with one heart with same spacing generally from the thoughtful center of outermost, and is arranged to the radially lath 65 that intersects with these annular laths 64.But, these radially the mode of the setting of lath 65 change to some extent, as hereinafter stating.
These radially lath 65 uniformly-spaced to be arranged on the concentric ring between the annular lath 64.But, on each concentric ring radially the number of lath 65 the each from annular lath 64 most peripherals to its center every concentric ring reduce one by ring.
Adopt this design, radially lath 65 comprises a straight line part 65a who forms from annular lath 64 most peripherals to its central straight; Somely be the parabola part 65b that parabolic shape is formed on this straight line portion 65a both sides; And somely alternately be formed on alternating segments 65c on the concentric ring between the annular lath 64 in the part except described straight line portion 65a and described all parabola part 65b.
In Fig. 7 B, can specify from the center of annular lath 64 along peripheral direction the radially number of lath 65 more easily.From annular lath 64 centers to its most peripheral one lath 65 radially is set as the crow flies, and as straight line portion (benchmark is lath radially) 65a.Comprise straight line portion 65a altogether seven radially lath 65 with uniformly-spaced be arranged between the annular lath 64, along moving on the concentric ring R7 of a spacing to peripheral direction from annular lath 64 center.Then, comprise straight line portion 65a altogether eight radially lath 65 move on the concentric ring R8 of a spacing from concentric ring R7 uniformly-spaced to be arranged on to described peripheral direction.
Next, comprise straight line portion 54a altogether nine radially lath 65 move on the concentric ring R9 of a spacing uniformly-spaced to be arranged on from concentric ring R8 to described peripheral direction, and, comprise straight line portion 65a altogether ten radially lath 65 move on the concentric ring R10 of a spacing from concentric ring R9 uniformly-spaced to be arranged on to described peripheral direction.
As mentioned above, move a concentric ring to peripheral direction by a spacing at every turn, with one radially lath add in the number that is arranged on the radially lath 65 on this concentric ring.In Fig. 7 B, comprise straight line portion 65a altogether 28 radially lath 65 uniformly-spaced to be set on the concentric ring R28 that is positioned at the most peripheral side and forms complete annular.Then, R28 is outside from concentric ring, on each curved concentric ring, by the interval of setting with same rate of change radially lath 65 is set.
As a result, radially lath 65 comprises a straight line part 65a who forms from annular lath 64 most peripherals to its central straight; Some parabola part 65b that are arranged on this straight line portion 65a both sides; And some alternating segments 65c except that straight line portion 65a and parabola part 65b.
Thereby, fan shroud 60 designs in such a way, it meets the requirement of the current rate that blows out from fan 15f, again corresponding to the blowing characteristic of outdoor fan 15, thereby reduced the exhaust resistance of fan shroud 60, and improving the blowing characteristic of outdoor fan 15 greatly, the result significantly improves heat exchange performance.
Fig. 8 illustrates the fan shroud 70 of the remodeling of above-mentioned second embodiment.This fan shroud 70 is furnished with the fan shroud 60 of described Fig. 7 A above two covers simultaneously, and two cover fan shrouds 60 are toward each other, thus with respect on one/following direction is symmetrical arranged.
The internal structure (not shown) of fan shroud 60 is similar to the internal structure of fan shroud 20 shown in Figure 1 substantially.But fan shroud 60 is to be used for an off-premises station with respect to bigger air conditioner, is provided with two heat exchangers, its with fan shroud up and down toward each other; Perhaps, be provided with a big outdoor heat converter, it extends in the upper and lower fan shroud.In addition, because two outdoor fans are provided with face-to-face with fan shroud up and down, so can obtain to be similar to above-mentioned operational effect.
Fig. 9 illustrates the fan shroud 80 of second another remodeling of embodiment, and it comprises as being similar to a radially straight line part 85a of the benchmark of lath of top benchmark; Some parabola part 85b; And some alternating segments 85c, and have only the part of alternating segments 85c to do change.
Specifically, comprise benchmark radially lath 85a altogether seven radially lath 85 is uniformly-spaced being arranged on the concentric ring R7, and some radially laths 85 outwards move on the part of concentric ring R8 corresponding to alternating segments 85c of a spacing with the concentric ring R7 that is disposed on that increases.
Similarly, some radially laths 85 also are arranged on concentric ring R9 and the part of R10 corresponding to alternating segments 85c with the interval that increases.Among Fig. 9, the part surface that hatching arranged is the part that increases of the interval of lath 85 radially.
Thereby, because fan shroud 80 does not need its intensity to surpass the radially lath 85 of the number of fan shroud 80 desirable strengths, so number of lath 85 and can be reduced to minimum essential number radially, thereby the exhaust resistance of fan shroud 80 can reduce, and the blowing characteristic of outdoor fan 15 can be improved greatly, thereby significantly strengthens heat exchange performance.
Table 1 is illustrated on each concentric ring between the annular lath the radially number of lath, and wherein the radius of the annular lath of most peripheral is represented with for example La, and the radius of each annular lath is pressed Lb, Lc, and Ld ..., the order of Lw reduces to its center.Thereby formerly in the design according to the described fan shroud of drawing, radially the number of lath is not always corresponding to the number of lath radially in the table 1.
Table 1
| | Fan shroud | 20 | | | Conventional fan guard |
| La | |||||
| 24 | 32 | 32 | 32 | ||
| | 24 | 31 | 32 | 32 | |
| | 24 | 30 | 32 | 32 | |
| | 24 | 29 | 32 | 32 | |
| | 24 | 28 | 32 | 32 | |
| | 24 | 27 | 32 | 32 | |
| | 24 | 26 | 32 | 32 | |
| | 24 | 25 | 32 | 32 | |
| | 24 | 24 | 32 | 32 | |
| | 24 | 23 | 32 | 32 | |
| | 24 | 22 | 32 | 32 | |
| | 24 | 21 | 32 | 32 | |
| | 12 | 20 | 16 | 32 | |
| | 12 | 19 | 16 | 32 | |
| | 12 | 18 | 16 | 32 | |
| | 12 | 17 | 16 | 32 | |
| | 12 | 16 | 16 | 32 | |
| | 12 | 15 | 16 | 32 | |
| Ls | 6 | 14 | 8 | 32 |
| Lt | 6 | 13 | 8 | 32 |
| Lu | 6 | 12 | 8 | 32 |
| Lv | 6 | 11 | 8 | 32 |
| Lw | 6 | 10 | 8 | 32 |
| / | 390 | 483 | 520 | 736 |
In those row of the example of the conventional fan guard shield in table 1 and since from most peripheral La to center Lw, on all concentric rings between the annular lath, 32 radially laths for example all must be arranged, so radially the number of lath reaches 736.
In contrast, shown in those row of fan shroud 20 radially the number of lath 25 be that lath 25 decides by being arranged alternately radially by above-mentioned mode by Fig. 3 A.Number from the most peripheral La of annular lath 24 to the radially lath 25 of its center Lw is divided into for example three types of groups, that is, one group 24, one group 12, and one group 6.So radially the number of lath 25 amounts to 390, and radially in the number of lath 25 and the ordinary construction radially the ratio of 736 of the numbers of lath be 0.54.
Shown in those row of fan shroud 60 radially the number of lath 65 as before press shown in Fig. 7 A, on each concentric ring between the annular lath 64 from most peripheral La to center Lw, by encircling 1 of minimizing.
Though on most peripheral La, 32 radially lath be necessary since at each apart from 1 of the decreased number of lath radially, so on the concentric ring of lath minimum number radially, radially the decreased number of lath is 10.Thereby, radially lath add up to 483, though many than first embodiment are less than the sum of conventional fan guard shield example greatly.
Figure 10 A to 10D shows annular lath and an example of the concrete shape of lath radially.Please note, though these shapes are applicable to top described all annular laths 24,44,54,64,84 and all laths 25,45,55,56,65,85 radially from fan shroud 20 to 80, here only to the annular lath 24 of fan shroud 20 and radially lath 25 describe.
That is, annular lath 24 be arranged in parallel with predetermined space each other, and radially lath 25 along direction setting perpendicular to annular lath 24.The section shape of annular lath 24 is flat or paddle-like substantially.So the exhaust resistance between annular lath 24 is reduced, and the noise increase that causes owing to the air-flow layering is inhibited, thereby has significantly improved the blowing characteristic.
In addition, radially the cross section of lath 25 can be circle, basic pancake or basic paddle-shaped.Thereby the intensity of fan shroud 20 and can increase and increase its exhaust resistance hardly, and can reduce the sectional dimension of annular lath 24 whereby.
Figure 11 A and 11B illustrate the example of Technical Reference.Figure 11 A illustrates the front of casing 10, and wherein fan shroud 90 is assemblied in the outlet 18.Fan shroud 90 comprises many with the molded lath of synthetic resin material monolithic.
Specifically, described lath comprises many annular laths 94, they with a preset space length therefrom the mind-set most peripheral be provided with one heart; And many radially laths 95, they intersect with annular lath 94, and its most peripheral of mind-set is disposed radially from annular lath 94.
Though much less, interval between the radially lath 95 adjacent one another are its most peripheral of mind-set from annular lath 94 increases (reducing gradually to its center from the most peripheral of annular lath 94) gradually, these radially lath 95 stop in end towards the pre-position at annular lath 94 centers.
The radially design of lath 95 final ends will be described in detail in detail below.Suppose that the interval between two adjacent radially laths 95 on the most peripheral Ps of the unbroken loop of annular lath 94 represents with m, when lath 95 radially from as the most peripheral Ps of the annular lath 94 of benchmark when center Z extends, the interval between two adjacent radial plate bars 95 reduces gradually from interval m.
So on the annular lath 94 in a certain precalculated position, the interval between the two adjacent radial plate bars 95 is set at m/2.In this position, radially the end of one of lath 95 stops, and the part that is positioned at the radially lath 95 in final end the place ahead distributes thinning.
Other radially lath 95 then extend to the center of annular lath 94 as usual.Like this and since other radially lath 95 be located at previous radially lath 95 adjacents that extend and do not stop, interval therebetween diminishes gradually.
At last, the interval between two adjacent radially laths 95 is set at m/2 in a pre-position of annular lath 94.Then, this radially stops in this precalculated position an end of one of lath 95, and the part that is positioned at final end radially lath 95 forward distributes thinning.By this way, under these conditions, dwell section is concatenated to form, till remaining radially lath 95 extends to the center of annular lath 94.
This point specifically describes with reference to Figure 11 B.Be provided with two extend to from annular lath 94 centers its most peripheral and each other by vertical and benchmark that horizontal direction is intersected lath 95s radially, and this two benchmark radially the centre position between the lath 95s (promptly be positioned at and depart from the radially position of 45 ° of lath 95 S of this two benchmark) one radially lath with label 95a sign.
Though these radially lath 95a, 95b and 95c extend to its center from the most peripheral of annular lath 94, lath 95a radially and radially the interval between the lath 95b and radially the interval between the lath 95b and radially lath 95b and radially the interval between the lath 95c be set at m/2 at the Pa place, position of the ring of a preset space length of annular lath 94 respectively.
In this position, radially lath 95a and radially lath 95c still do as usual, but then stop, and radially the lath 95b part that is positioned at final end the place ahead then distributes thinning in the end of the radially lath 95b of lath 95a both sides radially.Because radially lath 95a and 95c further extend, radially just with radially lath 95c is adjacent for lath 95a, and the interval between them reduces gradually.
At the Pb place, position of the ring of a preset space length of annular lath 94, lath 95a radially and radially the interval between the lath 95c and lath 95c radially and radially the interval between the lath 95s be set at m/2 respectively.Thereby radially the end of lath 95c stops at this, and radially lath 95a and 95s then further extend.
Thereby in the part forward of position Pb, radially radially lath 95s is adjacent for lath 95a and benchmark, thereby the interval between them just reduces gradually.At the Pc place, position of the ring of a preset space length of annular lath 94, be set to m/2 at the interval between lath 95a and the 95s radially.At this moment, radially the end of lath 95a stops, and have only benchmark radially lath 95s be present on the central side in final end the place ahead.
In above-mentioned design, fan shroud 90 is by a kind of like this fan shroud mode arrangement, it can satisfy the requirement of strength that fan 15f blows out air-flow, and by stopping and reducing the blowing characteristic that unwanted radially lath 95 on the intensity adapts to outdoor fan 15, thereby the exhaust resistance of fan shroud 90 is reduced, and significantly improving the blowing characteristic of outdoor fan 15, the result has improved heat exchange performance greatly.
Note that fan shroud 90 those numbers that are listed as listed radially lath 95 are as described below in the table 1.That is, be 32 at the number of the radially lath 25 of most peripheral La, with common example as many.Yet because on the ring of each preset space length, radially the end of lath stops, so at certain intermediate point place, the decreased number to 16 of lath 25 radially is half of 32; And near the center, further be reduced to 8, be half of 16, thereby, only need 520 radially laths 25 altogether.Therefore, compare with common example, radially the number of lath greatly reduces.
Figure 12 illustrates the fan shroud 99 of a kind of remodeling of above-mentioned first embodiment.Fan shroud 99 is provided with two cover Figure 11 A illustrated fan shrouds 90 simultaneously, and two cover fan shrouds 90 are toward each other, thus they go up relatively/following direction is symmetrical arranged.
The internal structure (not shown) of fan shroud 90 is similar to the indicated fan shroud 20 of Fig. 1 basically.But because fan shroud 99 is to be used in the off-premises station of a relatively large air conditioner, can two heat exchangers be set face-to-face, a large-scale outdoor heat converter that extends to upper and lower fan shroud perhaps is set with upper and lower fan shroud.In addition, because two outdoor fans and upper and lower fan shroud are provided with face-to-face, can obtain and similar operational effect noted earlier.
Industrial usability
As mentioned above, the present invention is advanced in the technical field of air conditioner, because it has obtained more such effects: the air draft area is increased in the casing outlet, has increased simultaneously the intensity of the fan shroud that is installed on outlet, and significantly improves the blowing performance by suppressing exhaust resistance.
Claims (10)
1. air conditioner, it has a heat exchanger and a blower fan that is arranged in the casing, and described blower fan will treat that the air of heat exchange is transported to described heat exchanger, so that air carries out heat exchange, described air conditioner comprises:
One outlet, this outlet is located in the described casing, and after air was transported to heat exchanger and carries out heat exchange therein, guiding and discharging were arrived extraneous through the air of heat exchange; And
One fan shroud, described fan shroud are installed in the described outlet, and in the air draft area of the air of heat exchange, it is inner to stop object to be invaded in assurance,
Wherein, described fan shroud comprises a plurality of annular laths that are provided with one heart with a preset space length and a plurality of and described annular lath intersects and the radially lath that radially is provided with to its most peripheral from all annular slat center, and
Described radially lath is arranged alternately on the concentric ring between the annular lath, radially lath on the concentric ring of outermost is provided with interval Q, radially the interval of lath reduces towards interior concentric ring from the concentric ring of outermost, up to becoming Q/2 at interval, and, be spaced apart on the adjacent concentric ring of a radial inward of this concentric ring of Q/2 at lath radially, be set at Q once more at interval, and reduce towards interior concentric ring.
2. air conditioner as claimed in claim 1 is characterized in that, described fan shroud is to adopt molded the forming of synthetic resin material monolithic.
3. air conditioner as claimed in claim 1 is characterized in that the cross sectional shape of described annular lath is flat or paddle-like substantially.
4. air conditioner as claimed in claim 1 is characterized in that, the cross sectional shape of described radially lath is rounded substantially, be flat substantially or be paddle-like substantially.
5. air conditioner, it has a heat exchanger and a blower fan that is arranged in the casing, and described blower fan will treat that the air of heat exchange is transported to described heat exchanger, so that air carries out heat exchange, described air conditioner comprises:
One outlet, this outlet is located in the described casing, and after air was transported to heat exchanger and carries out heat exchange therein, guiding and discharging were arrived extraneous through the air of heat exchange; And
One fan shroud, described fan shroud are installed in the described outlet, and in the air draft area of the air of heat exchange, it is inner to stop object to be invaded in assurance,
Wherein, described fan shroud comprises a plurality of annular laths that are provided with one heart with a preset space length and a plurality of and described annular lath intersects and the radially lath that radially is provided with to its most peripheral from all annular slat center, and
Described radially lath to be uniformly-spaced being arranged on the concentric ring between the annular lath, and from the most peripheral of annular lath to its center, on the concentric ring of each distance radially the number of lath successively decrease one.
6. air conditioner as claimed in claim 5 is characterized in that, described radially lath comprises: a straight line part, from the center of annular lath to the straight formation of its most peripheral, and as benchmark lath radially; Some parabola parts are formed on described straight line portion both sides with parabolic shape; And some alternating segments, on described parabola part both sides alternately are formed on adjacent concentric ring between the annular lath.
7. air conditioner as claimed in claim 6 is characterized in that the part of described alternating segments so is provided with, so that all radially laths are with on the concentric ring that is disposed on annular lath that increases.
8. air conditioner as claimed in claim 5 is characterized in that, described fan shroud is to adopt molded the forming of synthetic resin material monolithic.
9. air conditioner as claimed in claim 5 is characterized in that the cross sectional shape of described annular lath is flat or paddle-like substantially.
10. air conditioner as claimed in claim 5 is characterized in that, the cross sectional shape of described radially lath is rounded substantially, flat or paddle-like.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP396048/2000 | 2000-12-26 | ||
| JP2000396048A JP4482224B2 (en) | 2000-12-26 | 2000-12-26 | Air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1483125A CN1483125A (en) | 2004-03-17 |
| CN1216255C true CN1216255C (en) | 2005-08-24 |
Family
ID=18861409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN018212379A Expired - Lifetime CN1216255C (en) | 2000-12-26 | 2001-12-26 | Air conditioner |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1347245B1 (en) |
| JP (1) | JP4482224B2 (en) |
| KR (1) | KR100529547B1 (en) |
| CN (1) | CN1216255C (en) |
| AU (1) | AU2002217516B2 (en) |
| WO (1) | WO2002052202A1 (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004156884A (en) | 2002-11-08 | 2004-06-03 | Daikin Ind Ltd | Fan guard for blower unit |
| JP4721854B2 (en) * | 2005-09-30 | 2011-07-13 | 三洋電機株式会社 | Fan guard, blower, and air conditioner |
| JP4033216B2 (en) * | 2006-02-01 | 2008-01-16 | ダイキン工業株式会社 | Protective cover and air conditioner equipped with the same |
| JP4380744B2 (en) | 2007-07-12 | 2009-12-09 | ダイキン工業株式会社 | Blower unit |
| CN101619885B (en) * | 2009-07-28 | 2011-10-19 | 广东志高空调有限公司 | Air outlet mesh of outdoor unit of air conditioner |
| KR101622400B1 (en) * | 2009-09-28 | 2016-05-18 | 엘지전자 주식회사 | Outdoor unit of air-conditioner |
| GB2501087A (en) | 2012-04-11 | 2013-10-16 | Micros Systems Uk Ltd | Controlling the delivery of a product using a mobile communications device |
| CN102734234B (en) * | 2012-07-18 | 2016-04-20 | Tcl空调器(中山)有限公司 | Protective housing, fan component and air conditioner outdoor machine |
| JP6364617B2 (en) * | 2014-06-25 | 2018-08-01 | パナソニックＩｐマネジメント株式会社 | Blower and outdoor unit |
| KR101699607B1 (en) * | 2015-03-16 | 2017-01-24 | 엘지전자 주식회사 | Fractal grill and outdoor unit of air conditioner having fractal grill |
| DE202015104813U1 (en) * | 2015-09-10 | 2015-10-15 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Flow guide for arrangement on a fan |
| CN106509009A (en) * | 2016-11-11 | 2017-03-22 | 许昌学院 | Blow-shaping cover for instant noodles |
| JP2019056531A (en) * | 2017-09-22 | 2019-04-11 | 株式会社富士通ゼネラル | Fan guard and air conditioner including the same |
| WO2020091150A1 (en) * | 2018-10-30 | 2020-05-07 | 주식회사 명성 | Safety net for fan |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01159498A (en) * | 1987-12-14 | 1989-06-22 | Mitsubishi Electric Corp | Ventilating device |
| JP2924352B2 (en) * | 1991-09-17 | 1999-07-26 | 松下電器産業株式会社 | Front grill for outdoor unit of air conditioner |
| JPH0744893Y2 (en) * | 1992-11-20 | 1995-10-11 | 岩谷産業株式会社 | Fan guard |
| JP3043259B2 (en) * | 1995-02-17 | 2000-05-22 | 三洋電機株式会社 | Air conditioner |
| JPH08247097A (en) * | 1995-03-09 | 1996-09-24 | Toshiba Ave Corp | Fan guard |
| JPH10197014A (en) * | 1997-01-06 | 1998-07-31 | Matsushita Refrig Co Ltd | Outdoor machine of air conditioner |
| JP3332841B2 (en) * | 1998-02-19 | 2002-10-07 | 三洋電機株式会社 | Air conditioner |
| JP2000065418A (en) * | 1998-08-25 | 2000-03-03 | Hitachi Ltd | Air conditioner |
| JP2000234766A (en) * | 1999-02-12 | 2000-08-29 | Hitachi Ltd | Air conditioner |
-
2000
- 2000-12-26 JP JP2000396048A patent/JP4482224B2/en not_active Expired - Lifetime
-
2001
- 2001-12-26 CN CN018212379A patent/CN1216255C/en not_active Expired - Lifetime
- 2001-12-26 EP EP01271886A patent/EP1347245B1/en not_active Expired - Lifetime
- 2001-12-26 AU AU2002217516A patent/AU2002217516B2/en not_active Expired
- 2001-12-26 KR KR10-2003-7008556A patent/KR100529547B1/en active IP Right Grant
- 2001-12-26 WO PCT/JP2001/011470 patent/WO2002052202A1/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| JP2002195610A (en) | 2002-07-10 |
| WO2002052202A1 (en) | 2002-07-04 |
| CN1483125A (en) | 2004-03-17 |
| AU2002217516B2 (en) | 2005-06-02 |
| EP1347245A4 (en) | 2009-05-20 |
| KR20030067720A (en) | 2003-08-14 |
| EP1347245A1 (en) | 2003-09-24 |
| EP1347245B1 (en) | 2010-11-24 |
| KR100529547B1 (en) | 2005-11-22 |
| JP4482224B2 (en) | 2010-06-16 |
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