CN1229464A - Air conditioner - Google Patents
Air conditioner Download PDFInfo
- Publication number
- CN1229464A CN1229464A CN98800852A CN98800852A CN1229464A CN 1229464 A CN1229464 A CN 1229464A CN 98800852 A CN98800852 A CN 98800852A CN 98800852 A CN98800852 A CN 98800852A CN 1229464 A CN1229464 A CN 1229464A
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- CN
- China
- Prior art keywords
- mentioned
- air conditioner
- centrifugal fan
- guide part
- support portion
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Classifications
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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
- F24F13/24—Means for preventing or suppressing noise
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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
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
- F24F1/0067—Indoor units, e.g. fan coil units characterised by heat exchangers by the shape of the heat exchangers or of parts thereof, e.g. of their fins
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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
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
- F24F1/0022—Centrifugal or radial fans
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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
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
- F24F1/0047—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in the ceiling or at the ceiling
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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
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
Abstract
An air conditioner comprising a cylindrical bellmouth (8) for conducting the room air, a centrifugal fan (10) for radially blowing the air sucked through the bellmouth (8), and a heat exchanger (9) provided facing an outlet (10b) of the centrifugal fan (10), all of which being provided in a casing (2). A shroud (5) of the centrifugal fan (10) has a guide section (5c) which is provided radially outwardly of and contiguous to an annular blade support (5b) to extent toward a suction side in an axial direction, the guide section (5c) effectively reducing blast sounds.
Description
Technical field
The present invention relates to a kind of air conditioner.Concrete related air conditioner has: the tubular horn mouth of guiding room air; The centrifugal fan that will blow out radially by this horn mouth inhaled air; The heat exchanger that the air that this centrifugal fan is blown out heats or absorbs heat.
Background technology
As shown in Figure 4 as can be known, be provided with in housing 102 as such air conditioner 101: the horn mouth 108 of guiding room air; Will be by these horn mouth 108 inhaled airs centrifugal fan 110 that blows out radially and the heat exchanger 109 that stands facing each other and be provided with in the outlet of this centrifugal fan 110.In this example, housing 102 is to be placed in S place in the ceiling by the opening H that is located on the ceiling R, is provided with decoration panel 120 along ceiling R, and this decoration panel 120 comprises suction grid 122 and grid installing rack 121.Be provided with internal frame 111 in the inboard of decoration panel 120, this internal frame 111 has towards the inner peripheral surface 111a of the taper seat shape of housing top board 102a and by the outer peripheral face 111b that forms around four planes at four sides.Be formed with dump tank (rhone) 112 on internal frame 111, this dump tank 112 is by flat bottom surface 112b, and along the ring-type medial surface 112a of inner peripheral surface 111a, the lateral surface 112c that forms along four planes of outer peripheral face 111b constitutes.
Central authorities at dividing plate 108b are provided with circular hole, and the edge 108a of this circular hole is bent and horn mouth 108 is made tubular to centrifugal fan 110 lateral bendings.Dividing plate 108b is entrenched in suction grid 122 side ends of internal frame 111 and this horn mouth 108 is set.
Centrifugal fan 110 has: along the mainboard 104 of housing top board 102a configuration; And mainboard 104 opposed guard shields 105 and be arranged on mainboard 104 and guard shield 105 between a plurality of blades 106.Be provided with wheel hub 104b in the central authorities of mainboard 104 to the truncated cone shape that sucks grid 122 lateral bending songs.At the recess of the housing top board 102a of this wheel hub 104b one side configuration fan motor 103, flange 103b and vibration-proof rubber 117 by the L shape are installed in the main body of fan motor 103 on the housing top board 102a.In addition, by vibration-proof rubber 116 output shaft of fan motor 103 (rotating shaft) 103a is installed on the wheel hub 104b.Guard shield 105 has: the ring-shaped blade support portion 105b that is connected with blade 106 and from the inner edge of this blade support portion 105b tubular connector portions 105a crooked and that extend to axial suction side.The cylindrical portion 108a of this connector portions 105a and horn mouth 108 is overlapping, and surrounds the outside of cylindrical portion 108a and separated by a distance.
On the medial surface 112a of dump tank 112, fan guide plate 107 is installed.This fan guide plate 107 be by be entrenched on the medial surface 112a cylindrical portion 107b and from the upper end side of this cylindrical portion 107b the crooked and radially inboard guide part 107a that extends is constituted.This guide part 107a is near the outer rim of the blade support portion 105b of guard shield 105.The so just feasible air that is blown out by centrifugal fan 110 is smoothly by the gap 113 between centrifugal fan 110 and the heat exchanger 109.
Heat exchanger 109 is made along the frame shape of the rectangle of the lateral surface 112c of dump tank 112, and is configured to bottom surface 112b from receiving slit 112 to housing top board 102a.
During work, make centrifugal fan 110 rotations by fan motor 103.Like this, room air is by sucking grid 122, and horn mouth 108 is sucked by centrifugal fan 110, and is blown out radially by the blade 106 around the rotating shaft 103a.The air that blows out, is heated or heat absorption by heat exchanger 109 by the gap 113 between centrifugal fan 110 and the heat exchanger 109 by the guide part 107a guiding of fan guide plate 107.Then, by the gap 114 between heat exchanger 109 and the housing side plate 102b, and blow out to indoor by the outlet 123 of decoration panel 120.
But existing problem is in the air conditioner with above-mentioned centrifugal fan type: can produce 800Hz degree (500～1000Hz) air-supply noise (abnormal sound) in the gap 113 of the air that centrifugal fan 110 blows out between centrifugal fan 110 and heat exchanger 109.
And, the guide part 107a of fan guide plate 107 is near the outer rim of the blade support portion 105b of guard shield 105, though can make the air that blows out by centrifugal fan 110 smoothly by the gap 113 between centrifugal fan 110 and the heat exchanger 109, can not suppress the noise of blowing fully.
Disclosure of an invention
The air conditioner that the purpose of this invention is to provide a kind of noise that can reduce effectively to blow.
In order to achieve the above object, air conditioner of the present invention is provided with in housing: the tubular horn mouth of guiding room air; To it is characterized in that: the ring-type guide part that the radial outside of the guard shield of above-mentioned centrifugal fan in the ring-shaped blade support portion is provided with bending and extends to axial suction side by this horn mouth inhaled air centrifugal fan that blows out radially and the heat exchanger that stands facing each other and be provided with in the outlet of this centrifugal fan.
As described below, by this air conditioner noise (abnormal sound of 800Hz size) that can reduce effectively to blow.And, in that guide part and guard shield are provided with under the all-in-one-piece situation, compare with conventional example, can reduce the fee of material that is used for fan blade, traffic expense and mounting cost reduce product cost.
And in air conditioner of the present invention, above-mentioned centrifugal fan is by by mainboard, engages above-mentioned blade support portion on the fan main body that the blade integral that disposes between the above-mentioned guide part, above-mentioned mainboard and guide part forms and constitutes.
This air conditioner needn't use main equipment just can assemble centrifugal fan simply.Therefore, can avoid the increase of product cost.
And, in air conditioner of the present invention, above-mentioned heat exchanger is made around above-mentioned centrifugal fan rectangular frame shape on every side.
Can further reduce the noise of blowing effectively by this air conditioner.
And air conditioner of the present invention is provided with in housing: the tubular horn mouth of guiding room air; To it is characterized in that by this horn mouth inhaled air centrifugal fan that blows out radially and the heat exchanger that stands facing each other and be provided with in the outlet of this centrifugal fan: the radial outside that the guard shield of above-mentioned centrifugal fan has in the blade support portion of ring-type is provided with the continuous also ring-type guide part of suction side extension vertically of the outer rim of above-mentioned blade support portion.
By this air conditioner noise (noise of 800Hz size) that can reduce effectively to blow.
And in air conditioner of the present invention, its above-mentioned guide part direction crooked from the direction of the radial extension of outer rim of above-mentioned blade support portion and to above-mentioned axial suction side changes.
Can reduce the noise of blowing effectively by this air conditioner.
And in air conditioner of the present invention, above-mentioned guide part changes from the direction warpage and the direction to above-mentioned axial suction side of the radial extension of outer rim of above-mentioned blade support portion.
Can reduce the noise of blowing effectively by this air conditioner.
And in air conditioner of the present invention, above-mentioned guide part extends a certain amount of from the direction identical with above-mentioned blade support portion outer rim direction, and extends to a certain amount of place warpage at it.
Can reduce the noise of blowing effectively by this air conditioner.
And in air conditioner of the present invention, above-mentioned guide part extends to above-mentioned axial suction side straight line from the outer rim of above-mentioned blade support portion.
Can reduce the noise of blowing effectively by this air conditioner.
And in air conditioner of the present invention, above-mentioned centrifugal fan is by by mainboard, engages above-mentioned blade support portion on the fan main body that the blade integral that disposes between the above-mentioned guide part, above-mentioned mainboard and guide part forms and constitutes.
This air conditioner needn't use main equipment just can assemble centrifugal fan simply.Therefore, can avoid the increase of product cost.
And, in air conditioner of the present invention, above-mentioned heat exchanger is made around above-mentioned centrifugal fan rectangular frame shape on every side.
Can further reduce the noise of blowing effectively by this air conditioner.
The simple declaration of accompanying drawing
Fig. 1 is the longitudinal sectional drawing of the air conditioner structure of expression an embodiment of the present invention.
Fig. 2 is the plane of the major part of the above-mentioned air conditioner of expression.
Fig. 3 is expression is compared the air quantity of above-mentioned air conditioner and the relation of the noise of blowing with conventional example figure.
Fig. 4 is the figure of the existing air conditioner structure of illustration.
Fig. 5 A and Fig. 5 B are that expression is with the deposited schematic diagram that is installed in the example on the fan main body of secondary guard shield.Fig. 5 B is the centrifugal fan looked from axial suction side of expression, Fig. 5 A be among Fig. 5 B A-A to profile.
Fig. 6 A and Fig. 6 B are that expression engages fan main body with secondary guard shield and the schematic diagram of the 1st example of installing mutually.Fig. 6 B is the centrifugal fan that expression is looked from axial suction side, and the A-A among Fig. 6 A presentation graphs 6B is to section.
Fig. 7 A and Fig. 7 B are that expression engages fan main body with secondary guard shield and the schematic diagram of the 2nd example of installing mutually.Fig. 7 B is the centrifugal fan that expression is looked from axial suction side, and the A-A among Fig. 7 A presentation graphs 7B is to section.
Fig. 8 A, Fig. 8 B and Fig. 8 C are that expression engages fan main body with secondary guard shield and the schematic diagram of the 3rd example of installing mutually.Fig. 8 B is the centrifugal fan that expression is looked from axial suction side, and the A-A among Fig. 8 A presentation graphs 8B is to section.In addition, the B-B among Fig. 8 C presentation graphs 8B is to section.
Fig. 9 A, Fig. 9 B, Fig. 9 C and Fig. 9 D represent that respectively centrifugal fan expands the variation schematic diagram of the guide part of cover.
The optimised form that carries out an invention
Below describe the form of implementation of air conditioner of the present invention in detail.
Fig. 1 is the vertical section of the air conditioner 1 of expression one form of implementation.This air conditioner 1 has in housing 2: the horn mouth 8 of guiding room air; Will be by these horn mouth 8 inhaled airs centrifugal fan 10 that blows out radially and the heat exchanger 9 that stands facing each other and be provided with in the outlet 10b of this centrifugal fan 10.
In this embodiment, housing 2 is placed in S place in the ceiling by the opening H that is located at ceiling R, is provided with decoration panel 20 along ceiling R, and this decoration panel 20 comprises suction grid 22 and grid installing rack 21.Be provided with internal frame 11 in the inboard of decoration panel 20, this internal frame 11 has the inner peripheral surface 11a towards the taper seat shape of housing top board 2a, by the outer peripheral face 11b that forms around four planes at four sides.Formation dump tank (rhone) 12 on internal frame 11, this dump tank 12 is by flat bottom surface 12b, constitutes along the ring-type medial surface 12a of inner peripheral surface 11a and the lateral surface 12c that forms along four planes of outer peripheral face 11b.
Central authorities at dividing plate 8b are provided with circular hole, and the edge 8a of this circular hole is bent and horn mouth 8 is made tubular to centrifugal fan 10 lateral bendings.Dividing plate 8b is entrenched in 22 distolateral of the suction grids of internal frame 11 and this horn mouth 8 is set.
Centrifugal fan 10 has: along the mainboard 4 of housing top board 2a configuration; And mainboard 4 opposed guard shields 5 and be arranged on mainboard 4 and guard shield 5 between a plurality of blades 6.Be provided with wheel hub 4b in the central authorities of mainboard 4 to the truncated cone shape that sucks grid 22 lateral bending songs.At the recess of the housing top board 2a of this wheel hub 4b one side configuration fan motor 3, flange 3b and vibration-proof rubber 17 by the L shape are installed in the main body of fan motor 3 on the housing top board 2a.In addition, by vibration-proof rubber 16 output shaft of fan motor 3 (rotating shaft) 3a is installed among the hole 4a of wheel hub 4b.Guard shield 5 has the ring-shaped blade support portion 5b that is connected with blade 6.And the tubular connector portions 5a that is provided with bending and extends in the radially inner side integral body of this blade support portion 5b to axial suction side.The cylindrical portion 8a of this connector portions 5a and horn mouth 8 is overlapping, and surrounds the outside of cylindrical portion 8a and separated by a distance.That is: connector portions 5a forms the suction inlet 10a of this centrifugal fan 10.And, the radial outside integral body of blade support portion 5b be provided with crooked and vertically the suction side extend and near the ring-type guide part 5c of the inner peripheral surface 11a of internal frame 11.The air that blows out from the outlet 10b of centrifugal fan 10 by this guide part 5c guiding smoothly by the gap 13 between centrifugal fan 10 and the heat exchanger 9.
(Fig. 2 is that expression is removed the figure that looks from the below with the decoration panel among Fig. 1 20, internal frame 11 and horn mouth 8) as shown in Figure 2, heat exchanger 9 is made along the rectangular frame of the lateral surface 12c of dump tank 12.As shown in Figure 1, this heat exchanger 9 is configured to bottom surface 12b from dump tank 12 to housing top board 2a.
During work, make centrifugal fan 10 rotations by fan motor 3.Like this, room air is by sucking grid 22, and horn mouth 8 and suction inlet 10a are sucked by centrifugal fan 10, are blown out radially by outlet 10a by the blade 6 around the rotating shaft 3a.The air that blows out is passed through the gap 13 between centrifugal fan 10 and the heat exchanger 9 by the guide part 5c guiding of guard shield 5, and by heat exchanger 9 heating or heat absorption.Then, by the gap 14 between heat exchanger 9 and the housing side plate 2b, and blow out to indoor by the outlet 23 of decoration panel 20.
Among Fig. 3 with chain-dotted line represent this form of implementation air conditioner 1 air quantity with the air-supply noise relation.In addition, in order more then to dot the data of conventional example (being provided with the device of fan guide plate 107 shown in Figure 4), and the data when representing not have the guide plate situation fully with solid line.As can be seen from Figure 3, because the air conditioner of this form of implementation 1 is provided with above-mentioned guide part 5c on the guard shield 5 of centrifugal fan 10, so compare with conventional example, can reduce the air-supply noise of 2.0-2.5dBA degree, compare with the situation that does not have guide plate fully, can reduce the air-supply noise of 3dBA degree.
And, as shown in Figure 2, because heat exchanger 9 is made around centrifugal fan 10 rectangular frame structure on every side, so, not only have only narrow gaps part 13a as the gap 13 between centrifugal fan 10 and the heat exchanger 9, but also produced the corner part 13c of relief width.Can further reduce the noise of blowing like this.
And, because guide part 5c and guard shield 5 form one, so, compare with conventional example, can reduce the fee of material that is used for fan guide plate 107, traffic expense and mounting cost can reduce product cost.Can certainly make different component to guide part 5c and blade support portion 5b, and then assemble.
And, can use the mainboard 4 of resin monolithic molding as a part of element of centrifugal fan 10, blade 6 and guide part 5c (this formed parts is called " fan main body "), in addition, can secondary guard shield can be installed on this fan main body with connector portions 5a and the blade support portion 5b (this formed parts be called " secondary guard shield ") of resin monolithic molding as other element of centrifugal fan 10.
Shown in Fig. 5 A is that the direction of secondary guard shield 51 according to arrow C is entrenched on this fan main body 50, and uses ultrasonic wave coating machine (not shown) with the lateral margin 6a of each blade 6 and the mutually deposited example of blade support portion 5b of secondary guard shield 51.Shown in Fig. 5 B, (number of blade is 8 pieces, only illustrates 5 pieces for the sake of simplicity at interval a plurality of blades 6 to be set with equal angles (45 °) around mainboard 4 in this example.Fig. 6～Fig. 8 is also identical.)。The part that is decorated with oblique line among Fig. 5 B in dotted line is deposited place.In this case, guide part 5c by fan main body 50 sides and secondary guard shield 51 (represent to install with double dot dash line after position) can constitute above-mentioned guard shield 5.
But, if use ultrasonic wave coating so secondary guard shield 51 is deposited on the fan main body 50, then can increase because of its equipment investment and deposited flow chart make the cost of air conditioner.Therefore, increase as described below fan main body 50 can the installation mutually with secondary guard shield 51 with engaging for fear of cost.
What Fig. 6 A and Fig. 6 B represented is that fan main body 50 is engaged the 1st example of installing mutually with secondary guard shield 51.As shown in Figure 6A, on the lateral margin 6a of each blade 6 of fan main body 50 sides, be provided with the through hole 61 of rectangle, on the 5b of the blade support portion of secondary guard shield 51 sides, be provided with the pawl 52,53 and 54 of engaging usefulness in addition.Shown in Fig. 6 B, the pawl of blade support portion 5b 52,53 becomes a pair of state and is separately positioned on the through hole 61 corresponding positions with each blade 6 at a distance of certain intervals and with opposing.In addition, dispose a plurality of pawls 54 with equal angles (45 °) compartment of terrain in the outer rim of blade support portion 5b, specifically, respectively at the intermediate angular position configuration pawl 54 of several blades 6.By Fig. 6 A as can be known, on each pawl 52,53 and 54, be respectively equipped with roughly tilt 45 ° inclined plane 52a with relative chimeric direction C, 53a and 54a, and be provided with and these inclined planes 52a, 53a and 54a associated, and vertical locking surface 52b, 53b and the 54b of chimeric relatively direction C.In this example, when making secondary guard shield 51 with the direction of arrow C during near fan main body 50, inclined plane 52a, the 53a of pawl 52,53 contacts with the peripheral 61a of through hole 61, and pawl 52,53 is to mutual close direction bending.And, when inclined plane 52a, the 53a of pawl 52,53 by behind the through hole 61, the flexible elimination of pawl 52,53 and return to original shape.In addition, the inclined plane 54a of pawl 54 contacts with the inner edge of guide part 5c, pawl 54 radius vectors to interior to bending.And, when the inclined plane of pawl 54 54a by after the inner edge of guide part 5c, the flexible elimination of pawl 54 and return to original shape.As a result, the locking surface 52b of pawl 52,53,53b card end on the peripheral 61a of through hole 61, and the locking surface 54b card of pawl 54 ends the inner edge at guide part 5c.Like this, fasten (position after representing to install with double dot dash line), can constitute above-mentioned guard shield 5 simply by making fan main body 50 and secondary guard shield 51.Can avoid the increase of air conditioner cost thus.And, because dispose pawl to 52,53 and pawl 54 interlacedly secondary guard shield 51 circumferential, so, circumferentially forming a plurality of engagings place, fan main body 50 and secondary guard shield 51 can be installed securely.
What Fig. 7 A and Fig. 7 B represented is that fan main body 50 is engaged the 2nd example of installing mutually with secondary guard shield 51.Shown in Fig. 7 A, on the lateral margin 6a of each blade 6 of fan main body 50 sides, be provided with the pawl 62,63 of engaging usefulness, and be provided with the pawl 56 that engages usefulness with guide part 5c.In addition, on the 5b of the blade support portion of secondary guard shield 51 sides, be provided with the through hole 55 of rectangle.Shown in Fig. 7 B, the pawl of blade support portion 6a 62,63 is at a distance of certain intervals and opposing and form a pair of.Dispose the pawl 56 of a plurality of guide part 5c at the inner edge of guide part 5c with equal angles (45 °) compartment of terrain, specifically, respectively at the intermediate angular position configuration pawl 56 of several blades 6.In addition, the through hole 55 of blade support portion 5b is separately positioned on pawl 62, the 63 corresponding positions with each blade 6.By Fig. 7 A as can be known, on each pawl 62,63 and 56, be respectively equipped with roughly tilt 45 ° inclined plane 62a with relative chimeric direction C, 63a and 56a, and be provided with and these inclined planes 62a, 63a and 56a are associated, and vertical locking surface 62b, 63b and the 56b of chimeric relatively direction C.In this embodiment, when making secondary guard shield 51 with the direction of arrow C during near fan main body 50, inclined plane 62a, the 63a of pawl 62,63 contacts with the peripheral 55a of through hole 55, and pawl 62,63 is to mutual close direction bending.And inclined plane 62a, the 63a of pawl 62,63 be by behind the through hole 55, the flexible elimination of pawl 62,63 and return to original shape.In addition, the inclined plane 56a of pawl 56 contacts with the outer rim of blade support portion 5b, and pawl 56 radius vectors are to export-oriented crooked.And, when the inclined plane of pawl 56 56a by after the outer rim of guide part 5b, the flexible elimination of pawl 56 and return to original shape.As a result, the locking surface 62a of pawl 62,63,63a card end on the peripheral 55a of through hole 55, and the locking surface 56b card of pawl 56 ends the outer rim at blade support portion 5b.Like this, fasten (position after representing to install with double dot dash line), can constitute above-mentioned expansion cover 5 simply by making fan main body 50 and secondary guard shield 51.Can avoid the increase of air conditioner cost therefrom.And, because fan main body 50 circumferential dispose interlacedly a plurality of pawls to 62,63 with pawl 56, so, fan main body 50 and secondary guard shield 51 can be installed securely circumferentially forming a plurality of engagings place.
What Fig. 8 A, Fig. 8 B and Fig. 8 C represented is that fan main body 50 is engaged the 3rd example of installing mutually with secondary guard shield 51.Shown in Fig. 8 C, on blade face 6b, the 6c of each blade 6 of fan main body 50 sides, be provided with the groove 64,65 that the cross section is a concavity.In addition, on the 5b of the blade support portion of secondary guard shield 51 sides, be provided with the pawl 57,58 of engaging usefulness.Shown in Fig. 8 B, the pawl 57,58 of blade support portion 5b is opposed state, and be separately positioned on each blade 6 corresponding positions on.And, be provided with a plurality of pawls 59 in the outer rim of blade support portion 5b with equal angles (45 °) compartment of terrain.Specifically, the angle position in the middle of a plurality of blades 6 is provided with pawl 59 respectively.By Fig. 8 A, Fig. 8 C as can be known, roughly tilt 45 ° inclined plane 57a of relative chimeric direction C is set respectively on each pawl 57,58 and 59,58a and 59a and with this inclined plane 57a, 58a and 59a associated, and vertical locking surface 57b, 58b and the 59b of chimeric relatively direction C.In this embodiment, when making secondary guard shield 51 with the direction of arrow C during near fan main body 50, inclined plane 57a, the 58a of the pawl 57,58 shown in Fig. 8 C contacts with the both sides of blade lateral margin 6a (edge of lateral margin 6a and blade face 6b, 6c), and pawl 57,58 is to the direction bending of leaving mutually.Then, the front end of pawl 57,58 slips over blade face 6b, 6c and enters in the groove 64,65, the flexible elimination of pawl 57,58 and return to original shape.In addition, the inclined plane 59a of the pawl 59 shown in Fig. 8 A contacts with the inner edge of guide part 5c, pawl 59 radius vectors to interior to bending.Then, the inclined plane 59a of pawl 59 is by behind the inner edge of guide part 5c, the flexible elimination of pawl 59 and return to original shape.As a result, the locking surface 57b of pawl 57,58,58b card end on the sidewall of groove 64,65, and the locking surface 59b card of pawl 59 ends the inner edge at guide part 5c.Like this, fasten (position after representing to install with double dot dash line), can constitute above-mentioned guard shield 5 simply by making fan main body 50 and secondary guard shield 51.Can avoid the increase of air conditioner cost therefrom.And, because secondary guard shield 51 circumferentially with pawl to 57,58 and pawl 59 interlaced configurations, so, circumferentially forming a plurality of engagings place, fan main body 50 and secondary guard shield 51 can be installed securely.
In addition, at Fig. 6, in the example of Fig. 7 and Fig. 8, the outer rim of blade support portion 5b and the inner edge of guide part 5c are closely chimeric, but shown in Fig. 5 example, also can make the outer rim of blade support portion 5b and the inner edge of guide part 5c have some overlapping.
And in each of the above-described embodiment, guide part 5c direction crooked from the radial bearing of trend of the outer rim of blade support portion 5b and to axial suction side changes, but also is not limited to this.As Fig. 9 A, shown in Fig. 9 B and Fig. 9 C, above-mentioned guide part 5c changes from radial bearing of trend warpage of the outer rim of above-mentioned blade support portion 5b and the direction to above-mentioned axial suction side.In the example shown in Fig. 9 A, guide part 5c has extended a certain amount of position warpage in the direction identical with the outer rim direction of blade support portion 5b, and continue to have extended a certain amount of position again warpage once and the direction to axial suction side change.In the example shown in Fig. 9 B, guide part 5c is extending a certain amount ofly with respect to the direction of the outer rim warpage of blade support portion 5b, extend to a certain amount of position warpage and the direction to axial suction side changes at it.In the example shown in Fig. 9 C, guide part 5c be the direction identical with the outer rim direction of blade support portion 5b extend to a certain amount of position only warpage once and to the direction of axial suction side change.And shown in Fig. 9 D, guide part 5c extends to axial suction side straight line from the outer rim of blade support portion 5b.So long as the guide part 5c that is connected with blade support portion 5b extends to axial suction side, then compare with conventional example in either case and can reduce the noise of blowing.
Claims (10)
1. air conditioner, this air conditioner (1) is provided with in housing (2): the tubular horn mouth (8) of guiding room air; Centrifugal fan (10) that will blow out radially by this horn mouth (8) inhaled air and the heat exchanger (9) that stands facing each other and be provided with in the outlet (10b) of this centrifugal fan (10) is characterized in that: the ring-type guide part (5c) that the radial outside of guard shield (5) in the blade support portion of ring-type (5b) of above-mentioned centrifugal fan (10) is provided with bending and extends to axial suction side.
2. air conditioner as claimed in claim 1, it is characterized in that: above-mentioned centrifugal fan (5) is by mainboard (4), above-mentioned guide part (5c), the integrally formed fan main body (50) of blade (6) of configuration between above-mentioned mainboard (4) and the guide part (5c) are gone up engaging above-mentioned blade support portion (5b) and are constituted.
3. air conditioner as claimed in claim 1 or 2 is characterized in that: above-mentioned heat exchanger (9) is made around above-mentioned centrifugal fan (10) rectangular frame shape on every side.
4. air conditioner, this air conditioner (1) is provided with in housing (2): the tubular horn mouth (8) of guiding room air; Centrifugal fan (10) that will blow out radially by this horn mouth (8) inhaled air and the heat exchanger (9) that stands facing each other and be provided with in the outlet (10b) of this centrifugal fan (10) is characterized in that: the radial outside of guard shield (5) in the blade support portion of ring-type (5b) of above-mentioned centrifugal fan (10) is provided with the ring-type guide part (5c) that links to each other and extend to axial suction side with the outer rim of above-mentioned blade support portion (5b).
5. air conditioner as claimed in claim 4 is characterized in that: above-mentioned guide part (5c) changes from the direction bending of the radial extension of outer rim of above-mentioned blade support portion (5b) and to above-mentioned axial suction side direction.
6. air conditioner as claimed in claim 4 is characterized in that: above-mentioned guide part (5c) changes from the direction warpage of the radial extension of outer rim of above-mentioned blade support portion (5b) and to above-mentioned axial suction side direction.
7. air conditioner as claimed in claim 6 is characterized in that: above-mentioned guide part (5c) extends a certain amount of to the direction identical with above-mentioned blade support portion (5b) outer rim direction, extend to a certain amount of position warpage at it.
8. air conditioner as claimed in claim 4 is characterized in that: above-mentioned guide part (5c) extends to above-mentioned axial suction side straight line from the outer rim of above-mentioned blade support portion (5b).
9. as each described air conditioner in the claim 4 to 8, it is characterized in that: above-mentioned centrifugal fan (5) is by mainboard (4), above-mentioned guide part (5c), the integrally formed fan main body (50) of blade (6) of configuration between above-mentioned mainboard (4) and the guide part (5c) are gone up engaging above-mentioned blade support portion (5b) and are constituted.
10. as each described air conditioner in the claim 4 to 9, it is characterized in that: above-mentioned heat exchanger (9) is made around above-mentioned centrifugal fan (10) rectangular frame shape on every side.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15972797 | 1997-06-17 | ||
| JP159727/1997 | 1997-06-17 | ||
| JP159727/97 | 1997-06-17 | ||
| JP31217297 | 1997-11-13 | ||
| JP312172/1997 | 1997-11-13 | ||
| JP312172/97 | 1997-11-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1229464A true CN1229464A (en) | 1999-09-22 |
| CN1143087C CN1143087C (en) | 2004-03-24 |
Family
ID=26486437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB988008521A Expired - Fee Related CN1143087C (en) | 1997-06-17 | 1998-06-16 | Air conditioner |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0926452B1 (en) |
| JP (1) | JP3116379B2 (en) |
| CN (1) | CN1143087C (en) |
| AU (1) | AU708393B2 (en) |
| DE (1) | DE69831387T2 (en) |
| ES (1) | ES2248903T3 (en) |
| WO (1) | WO1998058213A1 (en) |
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| CN105546661A (en) * | 2016-02-19 | 2016-05-04 | 珠海格力电器股份有限公司 | Air conditioner |
| CN107850318A (en) * | 2015-07-08 | 2018-03-27 | 日立江森自控空调有限公司 | The indoor set of air conditioner |
| CN112703350A (en) * | 2018-09-14 | 2021-04-23 | 三星电子株式会社 | Outdoor unit of air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2001277834A (en) * | 2000-03-28 | 2001-10-10 | Denso Corp | Support structure for driving source |
| JP3907983B2 (en) | 2000-09-05 | 2007-04-18 | エルジー エレクトロニクス インコーポレイティド | Turbo fan for air conditioner |
| WO2004031660A1 (en) * | 2002-10-02 | 2004-04-15 | Mitsubishi Denki Kabushiki Kaisha | Method for reducing noise of air conditioner, fan unit and apparatus, pressure pulsation reducer of refrigeration cycle unit, pressure pulsation reducer of pump unit and pressure pulsation reducing method of apparatus |
| JP2006029320A (en) * | 2004-06-15 | 2006-02-02 | Matsushita Electric Ind Co Ltd | Turbofan and manufacturing method of turbofan |
| JP2007163026A (en) * | 2005-12-14 | 2007-06-28 | Hitachi Ltd | Indoor unit for air conditioner and air conditioner |
| EP1966544B1 (en) * | 2005-12-26 | 2014-01-08 | LG Electronics Inc. | Indoor unit of air conditioner |
| KR102076684B1 (en) * | 2013-02-21 | 2020-02-12 | 엘지전자 주식회사 | turbo fan and ceiling type air conditioner using it |
| JP6203294B2 (en) * | 2014-01-27 | 2017-09-27 | 三菱電機株式会社 | Centrifugal fan and air conditioner |
| EP3113965A4 (en) | 2014-03-06 | 2017-10-04 | Dometic Sweden AB | Improved air conditioning system |
| CN107869761B (en) * | 2016-09-23 | 2020-05-29 | 青岛海尔空调器有限总公司 | Indoor unit of air conditioner |
| CN107869774B (en) * | 2016-09-23 | 2020-05-29 | 青岛海尔空调器有限总公司 | Indoor unit of air conditioner |
| CN107869769B (en) * | 2016-09-23 | 2019-07-02 | 青岛海尔空调器有限总公司 | Air conditioner indoor unit |
| CN107869776B (en) * | 2016-09-23 | 2020-05-29 | 青岛海尔空调器有限总公司 | Indoor unit of air conditioner |
| CN107869763B (en) * | 2016-09-23 | 2020-08-04 | 青岛海尔空调器有限总公司 | Indoor unit of air conditioner |
| CN107869767B (en) * | 2016-09-23 | 2019-07-02 | 青岛海尔空调器有限总公司 | Air conditioner indoor unit |
| CN107869766B (en) * | 2016-09-23 | 2019-07-02 | 青岛海尔空调器有限总公司 | Air conditioner indoor unit |
| CN107869780B (en) * | 2016-09-23 | 2020-05-29 | 青岛海尔空调器有限总公司 | Indoor unit of air conditioner |
| CN107869775B (en) * | 2016-09-23 | 2020-05-29 | 青岛海尔空调器有限总公司 | Indoor unit of air conditioner |
| CN107869777B (en) * | 2016-09-23 | 2019-07-02 | 青岛海尔空调器有限总公司 | Air conditioner indoor unit |
| JP6809321B2 (en) | 2017-03-21 | 2021-01-06 | 株式会社デンソー | Air conditioner |
| US11473596B2 (en) | 2017-07-31 | 2022-10-18 | Trane International Inc. | Combined secondary inlet bell and flow grid for a centrifugal fan or centrifugal compressor |
| CN109539390B (en) * | 2017-08-04 | 2020-12-04 | 青岛海尔空调电子有限公司 | Indoor unit of air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61280327A (en) * | 1985-05-10 | 1986-12-10 | Sanyo Electric Co Ltd | Heat exchanging unit |
| JPH0723778B2 (en) * | 1988-12-20 | 1995-03-15 | ダイキン工業株式会社 | Air conditioner |
| JPH0743147B2 (en) * | 1988-12-26 | 1995-05-15 | ダイキン工業株式会社 | Ceiling embedded air conditioner |
| JP2956317B2 (en) * | 1990-11-07 | 1999-10-04 | ダイキン工業株式会社 | Air conditioner |
| JP2823351B2 (en) * | 1990-11-28 | 1998-11-11 | 三洋電機株式会社 | Heat exchange unit |
| JPH04263717A (en) * | 1991-02-19 | 1992-09-18 | Mitsubishi Heavy Ind Ltd | Air conditioner |
| JP3070212B2 (en) * | 1991-12-24 | 2000-07-31 | ダイキン工業株式会社 | Air conditioner |
-
1998
- 1998-06-16 ES ES98924634T patent/ES2248903T3/en not_active Expired - Lifetime
- 1998-06-16 JP JP11504131A patent/JP3116379B2/en not_active Expired - Fee Related
- 1998-06-16 WO PCT/JP1998/002638 patent/WO1998058213A1/en active IP Right Grant
- 1998-06-16 AU AU76756/98A patent/AU708393B2/en not_active Ceased
- 1998-06-16 CN CNB988008521A patent/CN1143087C/en not_active Expired - Fee Related
- 1998-06-16 EP EP98924634A patent/EP0926452B1/en not_active Expired - Lifetime
- 1998-06-16 DE DE69831387T patent/DE69831387T2/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107850318A (en) * | 2015-07-08 | 2018-03-27 | 日立江森自控空调有限公司 | The indoor set of air conditioner |
| CN107850318B (en) * | 2015-07-08 | 2020-06-26 | 日立江森自控空调有限公司 | Indoor unit of air conditioner |
| CN105546661A (en) * | 2016-02-19 | 2016-05-04 | 珠海格力电器股份有限公司 | Air conditioner |
| CN105546661B (en) * | 2016-02-19 | 2018-11-06 | 珠海格力电器股份有限公司 | Air conditioner |
| US10627132B2 (en) | 2016-02-19 | 2020-04-21 | Gree Electric Appliances, Inc. Of Zhuhai | Air conditioner |
| CN112703350A (en) * | 2018-09-14 | 2021-04-23 | 三星电子株式会社 | Outdoor unit of air conditioner |
| CN112703350B (en) * | 2018-09-14 | 2023-01-17 | 三星电子株式会社 | Outdoor unit of air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| DE69831387T2 (en) | 2006-07-13 |
| JP3116379B2 (en) | 2000-12-11 |
| AU708393B2 (en) | 1999-08-05 |
| WO1998058213A1 (en) | 1998-12-23 |
| CN1143087C (en) | 2004-03-24 |
| AU7675698A (en) | 1999-01-04 |
| ES2248903T3 (en) | 2006-03-16 |
| EP0926452A1 (en) | 1999-06-30 |
| DE69831387D1 (en) | 2005-10-06 |
| EP0926452A4 (en) | 2001-11-28 |
| EP0926452B1 (en) | 2005-08-31 |
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| C06 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20040324 Termination date: 20130616 |