CN204532964U - The spiral case of centrifugal blower, centrifugal blower and air conditioner - Google Patents
The spiral case of centrifugal blower, centrifugal blower and air conditioner Download PDFInfo
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- CN204532964U CN204532964U CN201520175281.4U CN201520175281U CN204532964U CN 204532964 U CN204532964 U CN 204532964U CN 201520175281 U CN201520175281 U CN 201520175281U CN 204532964 U CN204532964 U CN 204532964U
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Abstract
The utility model discloses a kind of spiral case of centrifugal blower, centrifugal blower and air conditioner.Spiral case comprises spiral case main body portion and diffuser pipe.Spiral case main body portion comprises two end plates and coaming plate, and coaming plate is connected with the edge, periphery of two end plates respectively, and coaming plate is provided with exhaust outlet.Diffuser pipe comprises first to fourth tube wall, and diffuser pipe is connected with exhaust outlet, and the second tube wall is connected with two end plates respectively with the 4th tube wall, and the first tube wall is connected with coaming plate respectively with the 3rd tube wall.First tube wall comprises the first diffuser and the second diffuser, on the flow direction of air, the first diffuser is positioned at the upstream of the second diffuser, and between the first diffuser and the 3rd tube wall, angle is θ 1, between second diffuser and the 3rd tube wall, angle is θ 2, θ 2> θ 1.According to spiral case of the present utility model, form secondary diffusion, reduce the air-out speed of spiral case, reduce pneumatic noise, the equipment wind-receiving face arranging centrifugal blower is increased, and the circulation of wind-receiving face overdraught is more even, and heat exchange efficiency is higher.
Description
Technical field
The utility model relates to field of household appliances, especially relates to a kind of spiral case of centrifugal blower, centrifugal blower and air conditioner.
Background technique
Centrifugal blower is usually used in indoor apparatus of air conditioner, the heat exchange efficiency of centrifugal blower volute structure to A/C evaporator has considerable influence, the noise of centrifugal blower is also Main Noise Sources, by optimal design ducting system, reduces the key technology that fan noise is reduction air conditioner noise.
The volute of blower outlet of existing indoor apparatus of air conditioner is less, and air-flow is uneven through the speed of evaporator, causes the heat exchange efficiency of vaporizer lower.
Centrifugal blower in correlation technique exists that noise is large, problem low with the heat exchange efficiency of vaporizer after air-out.Inventor finds through research and a large amount of experiments, causes the reason that noise is large, heat exchange efficiency is low to be that going out of the spiral case of centrifugal blower is young, air-out wind speed is larger.For this reason, the utility model aims to provide a kind of spiral case of centrifugal blower, and this spiral case can reduce noise, reduces air-out wind speed, to improve the heat exchange efficiency of equipment.
Another object of the present utility model is to provide a kind of centrifugal blower with the spiral case of above-mentioned centrifugal blower.
Another object of the present utility model is to provide a kind of air conditioner with above-mentioned centrifugal blower.
According to the spiral case of the centrifugal blower of this model utility embodiment, comprise: spiral case main body portion, described spiral case main body portion comprises the annular end plate of two of being oppositely arranged and coaming plate, described coaming plate is connected with the edge, periphery of described two end plates respectively, described two end plates are respectively equipped with intake grill, and described coaming plate is provided with exhaust outlet; Diffuser pipe, described diffuser pipe comprises first to fourth tube wall, and described diffuser pipe is connected with described exhaust outlet, and described second tube wall and the 4th tube wall are connected with described two end plates respectively, and described first tube wall is connected with described coaming plate respectively with the 3rd tube wall; Described first tube wall comprises the first diffuser and the second diffuser, on the flow direction of air, described first diffuser is positioned at the upstream of described second diffuser, angle between described first diffuser and described 3rd tube wall is θ 1, angle between described second diffuser and described 3rd tube wall is θ 2, described θ 2> θ 1.
According to the spiral case of centrifugal blower of the present utility model, by diffuser pipe is designed to two sections, and the diffusion angle of diffuser pipe increases on air-out direction, thus diffuser pipe forms secondary diffusion to air-out, reduce the air-out speed of spiral case, reduce pneumatic noise, the wind-receiving face of the equipment arranging centrifugal blower is increased, the circulation of wind-receiving face overdraught is more even, and heat exchange efficiency is higher.
Particularly, described θ 1 and θ 2 meets: 0.1< θ 1/ θ 2<0.6.Thus, the pneumatic noise of centrifugal blower is lower, and air-out wind speed is less, and the wind-receiving face heat exchange of equipment is comparatively even, and the heat exchange efficiency of equipment is higher.
Preferably, described θ 1 and θ 2 meets: θ 1/ θ 2=0.35.
In certain embodiments, the part around corresponding described intake grill of each described end plate is outwardly to form boss.Thus, not only can strengthen the structural strength of spiral case, and vortex flow loss can be reduced.
Particularly, distance between the remaining part of the described boss of removing of described two end plates is h1, maximum distance between described boss on described two end plates is h2, wherein, and 0.01< (h2-h1)/h1<0.3.The relatively corresponding end plate of boss can not be too high, thus avoid boss to cause obstruction to air-flow, and meanwhile, the relatively corresponding end plate of boss can not be excessively short, ensures that boss has guide function to surrounding atmosphere.
Preferably, described h1, h2 meet: 4mm<h2-h1<12mm.
In certain embodiments, each described boss shape becomes ring, and the central point of described intake grill is on the central axis of described boss.Thus, around on the direction of intake grill, the influence that boss flows to air is even, and vortex flow loss is little, reduces the air intake noise of centrifugal blower.
Particularly, the diameter of described intake grill is d1, and the external frame diameter of described boss is d2, and described d1, d2 meet: 0.6<d1/d2<0.9.Thus, the vortex flow loss of centrifugal blower is less.
Particularly, the part around corresponding described intake grill of two described end plates first vertically direction away from each other extend, then bending and towards corresponding described intake grill center and extend toward each other in the direction to form described boss, the free end of each described boss extends between described two end plates.Thus, the shape of each boss is all beneficial to and outside air is directed to air inlet, thus reduces vortex flow loss further.
According to the centrifugal blower of the utility model embodiment, comprise the spiral case of the centrifugal blower according to the utility model embodiment.
According to the air conditioner of the utility model embodiment, comprise the centrifugal blower according to the utility model embodiment.
Additional aspect of the present utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Model utility content
The application makes the discovery of the following fact and problem and understanding based on inventor:
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the perspective view of the spiral case according to the utility model embodiment;
Fig. 2 is the sectional structure schematic diagram in a direction of spiral case according to the utility model embodiment;
Fig. 3 is the plan view of the spiral case according to the utility model embodiment;
Fig. 4 is the sectional structure schematic diagram in another direction of spiral case according to the utility model embodiment;
Fig. 5 is the structural representation of the air conditioner according to the utility model embodiment.
Reference character:
Air conditioner 1000,
Spiral case 100, heat exchanger 200,
The free end k of spiral case main body portion 1, end plate 11, intake grill 111, boss 112, boss, coaming plate 12, exhaust outlet 121,
Diffuser pipe 2, first tube wall 21, second tube wall 22, the 3rd tube wall 23, the 4th tube wall 24, diffusion mouth 25, snail tongue a, the first diffuser b, the second diffuser c,
Maximum distance h2 between distance h1 between the remaining part of the removing boss of angle theta 1, second diffuser between the first diffuser and the 3rd tube wall and the angle theta 2 between the 3rd tube wall, the diameter d 1 of intake grill, external frame diameter d 2, two end plates of boss, the boss on two end plates.
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " orientation or the position relationship of the instruction such as " center ", " length ", " width ", " highly ", " top ", " end ", " interior ", " outward ", " axis ", " circumference " they be based on orientation shown in the drawings or position relationship; be only the utility model and simplified characterization for convenience of description; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristics.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.
In description of the present utility model, unless otherwise clearly defined and limited, term " is connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can comprise the first and second features and directly contact, also can comprise the first and second features and not be directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " comprise fisrt feature immediately below second feature and tiltedly below, or only represent that fisrt feature level height is less than second feature.
Below with reference to Fig. 1-Fig. 5, the spiral case 100 according to the centrifugal blower of the utility model embodiment is described.Here, centrifugal blower is used for the forced convection of equipment, and the type of equipment does not do concrete restriction.Exemplary and do not limit ground, as shown in Figure 5, centrifugal blower is used in air conditioner 1000, and air conditioner 1000 also comprises heat exchanger 200, and centrifugal blower heat exchanger 200 is dried, to improve the heat exchange efficiency of heat exchanger 200 and air.
According to the spiral case 100 of the centrifugal blower of the utility model embodiment, as Figure 1-Figure 4, comprise: spiral case main body portion 1 and diffuser pipe 2, spiral case main body portion 1 comprises coaming plate 12 and the annular end plate 11 of two of being oppositely arranged, coaming plate 12 is connected with the edge, periphery of two end plates 11 respectively, two end plates 11 are respectively equipped with intake grill 111, and coaming plate 12 is provided with exhaust outlet 121.Diffuser pipe 2 comprises first to fourth tube wall (21,22,23,24), diffuser pipe 2 is connected with exhaust outlet 121, wherein, second tube wall 22 is connected with two end plates 11 respectively with the 4th tube wall 24, first tube wall 21 is connected with coaming plate 12 respectively with the 3rd tube wall 23, for convenience of describing, claim in the two with the close together at the center of intake grill 111 be the first tube wall 21, claiming with the distant of the center of intake grill 111 is the 3rd tube wall 23, in the illustrated example shown in fig. 2,3rd tube wall 23 is tangent with coaming plate 12, and the part that the first tube wall 21 is connected with coaming plate 12 is snail tongue a.In addition, the free end of diffuser pipe 2 can be described as diffusion mouth 25.
Particularly, the wind wheel of centrifugal blower is suitable for being arranged in spiral case main body portion 1, under the driving of wind wheel, outside air sucks spiral case main body portion 1 from intake grill 111, then derive from exhaust outlet 121, under the guiding of diffuser pipe 2, the air in spiral case 100 finally blows out from diffusion mouth 25.In the example depicted in fig. 5, the heat exchanger 200 of diffusion mouth 25 corresponding device of spiral case 100 is placed, thus heat exchanger 200 is dried.
More specifically, as shown in Figure 2, have angle between the part of the removing snail tongue a of the first tube wall 21 and the 3rd tube wall 23, above-mentioned angle is called diffusion angle.On the flow direction of air, diffuser pipe 2 is along outwardly direction extension, that is, the osculum end of diffuser pipe 2 is connected with the exhaust outlet 121 of spiral case main body portion 1, the big opening end of diffuser pipe 2 forms diffusion mouth 25, and like this, diffuser pipe 2 is while outside wind-guiding, can wind speed be reduced, increase the size of diffusion mouth 25 simultaneously.
With reference to Fig. 2, the first tube wall 21 comprises the first diffuser b and the second diffuser c, and on the flow direction of air, the first diffuser b is positioned at the upstream of the second diffuser c, and namely in the figure 2 example, the first diffuser b is connected between snail tongue a and the second diffuser c.Angle between first diffuser b and the 3rd tube wall 23 is θ 1, and the angle between the second diffuser c and the 3rd tube wall 23 is θ 2, θ 2> θ 1.That is, diffuser pipe 2 can form secondary diffusion to the air of deriving.Like this, when structure, the parameter constant of spiral case main body portion 1, the design of diffuser pipe 2 secondary diffusion can increase the area of diffusion mouth 25, reduces pneumatic noise, reduces the air-out speed of diffusion mouth 25 further simultaneously.If the area of diffusion mouth 25 increases, the wind distribution of centrifugal blower blowout is more even, and as shown in Figure 5, the wind-receiving face of heat exchanger 200 strengthens, and air-flow can flow evenly through heat exchanger 200, thus improves the heat exchange efficiency of heat exchanger 200.
In addition, two sections that diffuser pipe 2 are designed to diffusion angle is different, diffuser pipe 2 is less on the air flow method impact in spiral case main body portion 1, and design cost and the manufacturing cost of spiral case 100 are lower.
According to the spiral case 100 of the centrifugal blower of the utility model embodiment, by diffuser pipe 2 is designed to two sections, and the diffusion angle of two sections of diffuser pipes 2 increases on air-out direction, thus diffuser pipe 2 pairs of air-out form secondary diffusion, reduce the air-out speed of spiral case 100, reduce pneumatic noise, the wind-receiving face of the equipment arranging centrifugal blower is increased, the circulation of wind-receiving face overdraught is more even, improves the heat exchange efficiency of equipment.
Particularly, inventor, through a large amount of simulation analysis and experiment, finds when θ 1 and θ 2 meets: during 0.1< θ 1/ θ 2<0.6, the pneumatic noise of centrifugal blower is lower, air-out wind speed is less, and the wind-receiving face heat exchange of equipment is comparatively even, and the heat exchange efficiency of equipment is higher.
More specifically, θ 1 is preferably 11 °, and θ 2 is preferably 31 °.Preferably, θ 1 and θ 2 meets: θ 1/ θ 2=0.35.
In certain embodiments, as shown in Figure 3 and Figure 4, the part around corresponding intake grill 111 of each end plate 11 is outwardly thus, not only can strengthen the structural strength of spiral case 100 to form boss 112, and can reduce vortex flow loss.
Particularly, as shown in Figure 4, the part around corresponding intake grill 111 of two end plates 11 first vertically direction away from each other extend, then bending and towards corresponding intake grill 111 center and extend toward each other in the direction to form boss 112, the free end k of each boss 112 extends between two end plates 11.Like this, the shape of each boss 112 is all beneficial to and outside air is directed to intake grill 111 place, thus reduces vortex flow loss further.
Advantageously, as shown in Figure 4, the distance between the remaining part of the removing boss 112 of two end plates 11 is h1, and the maximum distance between the boss 112 on two end plates 11 is h2, wherein, 0.01< (h2-h1)/h1<0.3.Like this, the relatively corresponding end plate 11 of boss 112 can not be too high, thus avoid boss 112 pairs of air-flows to cause obstruction, and meanwhile, the relatively corresponding end plate 11 of boss 112 can not be excessively short, ensures that boss 112 pairs of surrounding atmospheres have guide function.
Preferably, h1, h2 meet: 4mm<h2-h1<12mm, and namely the height of the end plate 11 that each boss 112 is relatively corresponding is 2mm-6mm.Wherein, preferred h2-h1=4mm, or preferred h2-h1=6mm, or preferred h2-h1=8mm, or preferred h2-h1=10mm.
In certain embodiments, as shown in Figure 3, each boss 112 is formed as ring, the central point of intake grill 111 is on the central axis of boss 112, thus ensure on the direction around intake grill 111, the influence of boss 112 pairs of air flowings is even, and vortex flow loss is little, reduces the air intake noise of centrifugal blower.
Particularly, the diameter of intake grill 111 is d1, and the external frame diameter of boss 112 is d2, finds through experiment, and when d1, d2 meet: 0.6<d1/d2<0.9, the vortex flow loss of centrifugal blower is less.Wherein, preferred d1/d2 is 0.73.
According to the spiral case 100 of the centrifugal blower of the utility model embodiment, by designing the diffuser pipe 2 of secondary diffusion, thus expanding the area of the diffusion mouth 25 of spiral case 100, reducing wind speed, expand the wind-receiving face of equipment, improve the heat exchange efficiency of equipment, reduce noise.In addition, by designing boss 112 at each intake grill 111 place, and optimize the size of boss 112, thus be conducive to the vortex flow loss reducing centrifugal blower.
According to the centrifugal blower of the utility model embodiment, comprise the spiral case 100 according to the centrifugal blower of the utility model embodiment.By arranging the spiral case 100 of the utility model embodiment, making centrifugal blower be provided with the advantage of above-mentioned spiral case 100, repeating no more here.
According to the air conditioner 1000 of the utility model embodiment, comprise the centrifugal blower according to the utility model embodiment.
Particularly, as shown in Figure 5, the diffusion mouth 25 of centrifugal blower volute 100 is dried towards heat exchanger 200.
According to the air conditioner 1000 of the utility model embodiment, by arranging the centrifugal blower according to the utility model embodiment, thus reduce the noise of air conditioner 1000, and expand the wind-receiving face of heat exchanger 200, improve the heat exchange efficiency of heat exchanger 200.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present utility model and aim, scope of the present utility model is by claim and equivalents thereof.
Claims (11)
1. a spiral case for centrifugal blower, is characterized in that, comprising:
Spiral case main body portion, described spiral case main body portion comprises the annular end plate of two of being oppositely arranged and coaming plate, described coaming plate respectively with the periphery of described two end plates along being connected, described two end plates are respectively equipped with intake grill, and described coaming plate is provided with exhaust outlet;
Diffuser pipe, described diffuser pipe comprises first to fourth tube wall, and described diffuser pipe is connected with described exhaust outlet, and described second tube wall and the 4th tube wall are connected with described two end plates respectively, and described first tube wall is connected with described coaming plate respectively with the 3rd tube wall;
Described first tube wall comprises the first diffuser and the second diffuser, on the flow direction of air, described first diffuser is positioned at the upstream of described second diffuser, angle between described first diffuser and described 3rd tube wall is θ 1, angle between described second diffuser and described 3rd tube wall is θ 2, described θ 2> θ 1.
2. the spiral case of centrifugal blower according to claim 1, is characterized in that, described θ 1 and θ 2 meets: 0.1< θ 1/ θ 2<0.6.
3. the spiral case of centrifugal blower according to claim 2, is characterized in that, described θ 1 and θ 2 meets: θ 1/ θ 2=0.35.
4. the spiral case of centrifugal blower according to claim 1, is characterized in that, the part around corresponding described intake grill of each described end plate is outwardly to form boss.
5. the spiral case of centrifugal blower according to claim 4, it is characterized in that, distance between the remaining part of the described boss of removing of described two end plates is h1, maximum distance between described boss on described two end plates is h2, wherein, 0.01< (h2-h1)/h1<0.3.
6. the spiral case of centrifugal blower according to claim 5, is characterized in that, described h1, h2 meet: 4mm<h2-h1<12mm.
7. the spiral case of centrifugal blower according to claim 4, is characterized in that, each described boss shape becomes ring, and the central point of described intake grill is on the central axis of described boss.
8. the spiral case of centrifugal blower according to claim 7, is characterized in that, the diameter of described intake grill is d1, and the external frame diameter of described boss is d2, and described d1, d2 meet: 0.6<d1/d2<0.9.
9. the spiral case of centrifugal blower according to claim 4, it is characterized in that, the part around corresponding described intake grill of two described end plates first vertically direction away from each other extend, then bending and towards corresponding described intake grill center and extend toward each other in the direction to form described boss, the free end of each described boss extends between described two end plates.
10. a centrifugal blower, is characterized in that, comprises the spiral case of the centrifugal blower according to any one of claim 1-9.
11. 1 kinds of air conditioners, is characterized in that, comprise centrifugal blower according to claim 10.
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| CN106438486A (en) * | 2016-11-23 | 2017-02-22 | 青岛海尔空调电子有限公司 | Centrifugal fan volute and indoor unit |
| CN106523434A (en) * | 2016-11-23 | 2017-03-22 | 青岛海尔空调电子有限公司 | Centrifugal fan volute and indoor machine |
| CN107420996A (en) * | 2017-09-07 | 2017-12-01 | 中山大洋电机股份有限公司 | Machine in a kind of new and effective HVAC |
| CN107503958A (en) * | 2017-09-22 | 2017-12-22 | 杭州德意电器股份有限公司 | A kind of centrifugal blower fan system for range hood |
| CN108954753A (en) * | 2018-10-24 | 2018-12-07 | 奥克斯空调股份有限公司 | air channel structure and air conditioner |
| CN109114673A (en) * | 2018-09-27 | 2019-01-01 | Tcl空调器(中山)有限公司 | Cabinet air-conditioner and air conditioner |
| CN110671746A (en) * | 2019-11-04 | 2020-01-10 | 珠海格力电器股份有限公司 | Air duct structure, indoor unit and air conditioner |
| CN112240723A (en) * | 2020-06-01 | 2021-01-19 | 广东美的暖通设备有限公司 | Heat exchange fin and air duct type air conditioner |
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| CN106438486A (en) * | 2016-11-23 | 2017-02-22 | 青岛海尔空调电子有限公司 | Centrifugal fan volute and indoor unit |
| CN106523434A (en) * | 2016-11-23 | 2017-03-22 | 青岛海尔空调电子有限公司 | Centrifugal fan volute and indoor machine |
| CN106523434B (en) * | 2016-11-23 | 2020-02-28 | 青岛海尔空调电子有限公司 | Centrifugal fan volute and indoor unit |
| CN106438486B (en) * | 2016-11-23 | 2020-01-17 | 青岛海尔空调电子有限公司 | Centrifugal fan volute and indoor unit |
| WO2019047466A1 (en) * | 2017-09-07 | 2019-03-14 | 中山大洋电机股份有限公司 | Novel efficient hvac indoor unit |
| CN107420996A (en) * | 2017-09-07 | 2017-12-01 | 中山大洋电机股份有限公司 | Machine in a kind of new and effective HVAC |
| CN107503958A (en) * | 2017-09-22 | 2017-12-22 | 杭州德意电器股份有限公司 | A kind of centrifugal blower fan system for range hood |
| CN109114673A (en) * | 2018-09-27 | 2019-01-01 | Tcl空调器(中山)有限公司 | Cabinet air-conditioner and air conditioner |
| CN109114673B (en) * | 2018-09-27 | 2024-06-07 | Tcl空调器(中山)有限公司 | Cabinet air conditioner and air conditioner |
| CN108954753A (en) * | 2018-10-24 | 2018-12-07 | 奥克斯空调股份有限公司 | air channel structure and air conditioner |
| CN108954753B (en) * | 2018-10-24 | 2023-07-18 | 奥克斯空调股份有限公司 | Air duct structure and air conditioner |
| CN110671746A (en) * | 2019-11-04 | 2020-01-10 | 珠海格力电器股份有限公司 | Air duct structure, indoor unit and air conditioner |
| CN112240723A (en) * | 2020-06-01 | 2021-01-19 | 广东美的暖通设备有限公司 | Heat exchange fin and air duct type air conditioner |
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