CN108036485B - Air duct structure and air conditioner - Google Patents
Air duct structure and air conditioner Download PDFInfo
- Publication number
- CN108036485B CN108036485B CN201810037165.4A CN201810037165A CN108036485B CN 108036485 B CN108036485 B CN 108036485B CN 201810037165 A CN201810037165 A CN 201810037165A CN 108036485 B CN108036485 B CN 108036485B
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- inflection point
- section
- flow fan
- fan blade
- blade assembly
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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
- F24F13/0245—Manufacturing or assembly of air ducts; Methods therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides an air duct structure and an air conditioner, and relates to the technical field of air conditioners. The air duct structure includes an air duct section and an anti-surge structure. The anti-surge structure is provided with a first inflection point, the air duct section is connected with the anti-surge structure and forms a second inflection point, and an anti-surge groove is arranged between the first inflection point and the second inflection point. The air duct structure can well inhibit surge.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air duct structure and an air conditioner.
Background
The traditional air conditioner adopts a through-flow fan blade assembly air duct, and the problem of uneven air inlet is easy to occur because the length is longer than that of a centrifugal fan blade assembly air duct and an axial flow fan blade assembly air duct, and the problem of surging can be caused if the air quantity of a certain fan blade is too small.
Therefore, developing an air duct structure that can effectively solve the above problems is a technical problem that needs to be solved urgently at present.
Disclosure of Invention
In view of the foregoing, the present invention is directed to an air duct structure that can better suppress the occurrence of surge.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
an air duct structure comprises an air duct section and an anti-surge structure.
The anti-surge structure is provided with a first inflection point, the air duct section is connected with the anti-surge structure and forms a second inflection point, and an anti-surge groove is arranged between the first inflection point and the second inflection point.
Further, the anti-surge structure comprises an anti-surge section and an extension section connected; the anti-asthma section and the connecting end of the extension section form a first inflection point, one end of the anti-asthma section, which is far away from the extension section, is connected with the air duct section and forms a second inflection point, the anti-asthma groove is formed in the anti-asthma section, and the first inflection point and the second inflection point form a notch of the anti-asthma groove.
Further, the extension section comprises a first extension section and a second extension section which are connected, a third inflection point is formed at the connecting end of the first extension section and the second extension section, and the protruding direction of the third inflection point and the opening direction of the anti-asthma groove are located on the same side of the air duct structure.
Further, the included angle between the first extension section and the vertical line of the side wall of the anti-asthma groove is 3-13 degrees, and the included angle between the second extension section and the vertical line of the side wall of the anti-asthma groove is 10-25 degrees.
Further, the anti-surge section and the extension section are integrally formed, the air duct section is arc-shaped, and the air duct section and the anti-surge structure are integrally formed.
Further, the anti-asthma groove has a deep opening end and a shallow opening end, the deep opening end is disposed near the first inflection point, and the shallow opening end is disposed near the second inflection point.
Compared with the prior art, the panel and middle frame connecting structure has the following advantages:
the air duct structure is used for being installed on an air conditioner and has a guiding effect on wind. The air duct section of the air duct structure is used for being connected with the mounting structure of the cross-flow fan blade assembly, and the anti-surge structure is used for extending into the space between the coaming and the cross-flow fan blade assembly and is arranged close to the cross-flow fan blade assembly. Because the anti-surge structure is provided with the first inflection point and the second inflection point which are protruded towards the cross-flow fan blade assembly to form a double-guide-point structure, and the anti-surge groove is formed between the first inflection point and the second inflection point, air flow can be accumulated, the air flow is automatically regulated and supplemented into main air flow according to the change of an air duct working condition system, the transient air flow of an air duct is increased, the fan blade of the cross-flow fan blade assembly is improved to be used as the functional force, and therefore the occurrence of surge is effectively restrained, the structure is simple, and the practicability is strong.
The invention further aims to provide an air conditioner which adopts the air duct structure provided by the invention, and the air conditioner provided by the invention can well inhibit surge. In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
an air conditioner comprises a cross-flow fan blade assembly mounting structure, a cross-flow fan blade assembly, a coaming and an air duct structure, wherein the air duct structure comprises an air duct section and an anti-surge structure. The anti-surge structure is provided with a first inflection point, the air duct section is connected with the anti-surge structure and forms a second inflection point, and an anti-surge groove is arranged between the first inflection point and the second inflection point; the protruding direction of the first inflection point, the protruding direction of the second inflection point and the opening direction of the anti-asthma groove are positioned on the same side of the air duct structure.
The cross-flow fan blade assembly is arranged on the cross-flow fan blade assembly mounting structure, the coaming is arranged around the periphery of the cross-flow fan blade assembly, the air duct section is connected with the cross-flow fan blade assembly mounting structure, and the anti-surge structure extends into the space between the coaming and the cross-flow fan blade assembly and is arranged close to the cross-flow fan blade assembly; the first inflection point and the second inflection point are both protruded towards the cross-flow fan blade assembly.
Further, an end point of the anti-surge structure far away from the air duct structure is used for forming an air inlet with the through-flow fan blade assembly, the first inflection point is used for forming a first neck-shrinking opening with the through-flow fan blade assembly, and the second inflection point is used for forming a second neck-shrinking opening with the through-flow fan blade assembly; the width of the first neck-down opening is larger than that of the second neck-down opening; the width of the air inlet is larger than that of the first neck-down opening; the width of the first neck-down opening is 0.036-0.063 times of the diameter of the fan blade of the through-flow fan blade assembly.
Further, the anti-asthma groove is provided with a deep opening end and a shallow opening end, wherein the deep opening end is arranged close to the first inflection point, and the shallow opening end is arranged close to the second inflection point; the depth of the deep opening end is 0.023-0.088 times of the diameter of the fan blade of the cross-flow fan blade assembly; the distance from the first inflection point to the second inflection point is 0.13-0.32 times of the diameter of the fan blade of the through-flow fan blade assembly.
Further, the anti-surge structure comprises an anti-surge section and an extension section connected; the extending section comprises a first extending section and a second extending section which are connected, a third inflection point is formed at the connecting end of the first extending section and the second extending section, and the third inflection point is used for forming a third neck-shrinking opening with the through-flow fan blade component; the second extending section is far away from the end point of the first extending section and is used for forming the air inlet with the through-flow fan blade assembly, the width of the air inlet is larger than that of the third neck-shrinking opening, and the width of the third neck-shrinking opening is larger than that of the first neck-shrinking opening.
Compared with the prior art, the air conditioner provided by the invention has the following advantages:
the air conditioner provided by the invention has the advantages that the air duct structure is adopted, so that air flow can be accumulated, the air flow can be automatically regulated and supplemented into main air flow according to the change of an air duct working condition system, the transient air flow of the air duct is increased, the functional force of the blades of the cross-flow fan blade assembly is improved, the occurrence of surging is effectively restrained, the structure is simple, and the practicability is strong.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
fig. 1 is a schematic view of a first partial structure of an air conditioner according to a first embodiment of the present invention.
Fig. 2 is a schematic diagram of a second partial structure of an air conditioner according to the first embodiment of the present invention.
Fig. 3 is a schematic view of a first partial structure of an air conditioner according to a second embodiment of the present invention.
Fig. 4 is a schematic view of a second partial structure of an air conditioner according to a second embodiment of the present invention.
Reference numerals illustrate:
210-a cross-flow fan blade assembly mounting structure; 220-cross-flow fan blade components; 230-coaming; 100-an air duct structure; 110-an air duct section; 120-anti-surge structure; 102-a first inflection point; 103-a second inflection point; 121-an anti-asthma groove; 1211-deep mouth end; 1212-shallow mouth end; 104, an air inlet; 105-a first neck-down; 106-a second neck-down; 122-antiasthmatic segment; 123-extension segment; 1231-a first extension; 1233-a second extension; 1235-third inflection point; 107-a third neck-down; 310-an air duct plate; 312-arc segments; 3121-a catch projection; 313-run-in; 320-reinforcement; 321-clamping sections; 3211-bayonet; 322-connection section; 323-lee section; 324-windward section.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
In addition, the terms "first," "second," etc. mentioned in the embodiments of the present invention are used merely to distinguish descriptions, and are not to be construed as indicating or implying relative importance.
The invention will be described in detail below with reference to the drawings in connection with embodiments.
First embodiment
Fig. 1 shows a first partial structure schematic diagram of an air conditioner provided in this embodiment. The air conditioner provided in this embodiment includes a cross-flow fan assembly mounting structure 210, a cross-flow fan assembly 220, a shroud 230, and a duct structure 100.
The cross-flow fan assembly mounting structure 210 is used for mounting a cross-flow fan assembly 220, and the air duct structure 100 is used for connecting with the cross-flow fan assembly mounting structure 210 and guiding the wind. By adopting the air duct structure 100, the air conditioner provided by the embodiment can well inhibit surge.
In this embodiment, the through-flow fan assembly 220 is mounted on the through-flow fan assembly mounting structure 210, and the shroud 230 is disposed around the periphery of the through-flow fan assembly 220.
Fig. 2 shows a second partial structure schematic diagram of the air conditioner provided in the present embodiment. Referring to fig. 1 and 2 in combination, in the present embodiment, the air duct structure 100 includes an air duct segment 110 and an anti-surge structure 120 connected to each other.
The air duct section 110 is connected to the cross-flow fan assembly mounting structure 210, and the anti-surge structure 120 extends between the shroud 230 and the cross-flow fan assembly 220 and is disposed proximate to the cross-flow fan assembly 220.
In this embodiment, the anti-surge structure 120 has a first inflection point 102 and a second inflection point 103, where the first inflection point 102 and the second inflection point 103 protrude toward the through-flow fan assembly 220. An anti-asthma groove 121 is provided between the first inflection point 102 and the second inflection point 103.
It can be understood that the protruding direction of the first inflection point 102, the protruding direction of the second inflection point 103, and the opening direction of the anti-asthma slot 121 are located on the same side of the air duct structure 100, that is, the first inflection point 102 and the second inflection point 103 both protrude toward the through-flow fan assembly 220 and the opening direction of the anti-asthma slot 121 faces toward the through-flow fan assembly 220.
This structure has an advantage in that it is convenient to form a throttle at the first inflection point 102 and the second inflection point 103 and accumulate the air flow at the anti-surge tank 121.
It will be appreciated that the end of the anti-surge structure 120 remote from the duct section 110 forms the air intake 104 with the cross-flow fan assembly 220. Fluid from the air inlet 104 into the duct structure 100 may form a restriction at the first inflection point 102 and the second inflection point 103, and may accumulate airflow at the anti-surge tank 121. The air flow can be automatically adjusted and supplemented into the main air flow according to the change of the air duct working condition system, and the transient air flow of the air duct is increased, so that the generation of air duct surge is inhibited.
In this embodiment, the distance from the first inflection point 102 to the second inflection point 103 is 0.13-0.32 times the diameter of the blades of the through-flow fan assembly 220. The anti-asthma groove 121 has a triangular cross section. The anti-asthma groove 121 has a deep mouth end 1211 and a shallow mouth end 1212, the deep mouth end 1211 being disposed proximate to the first inflection point 102 and the shallow mouth end 1212 being disposed proximate to the second inflection point 103.
Preferably, the depth of the deep opening 1211 is 0.023-0.088 times the diameter of the blades of the cross-flow blade assembly 220. And the side wall of the anti-asthma groove 121 corresponding to the deep opening end 1211 is disposed toward the center of the through-flow fan blade assembly 220.
It will be appreciated that the anti-asthma groove 121 of this structure is suddenly recessed on the side close to the air inlet 104, and has the effect of instantaneously increasing the air storage amount. The side remote from the air inlet 104 is in transitional connection with the air duct section 110, which is beneficial to enhancing the stability of the air flow. Thereby preferably playing a role in inhibiting the generation of air duct surge.
It should be appreciated that in other preferred embodiments, the cross-sectional shape of the anti-asthma groove 121 may vary differently, such as rectangular, etc.
The first inflection point 102 and the cross-flow fan assembly 220 form a first neck-down opening 105, and the second inflection point 103 and the cross-flow fan assembly 220 form a second neck-down opening 106.
In this embodiment, the width of first neck-finish 105 is greater than the width of second neck-finish 106. The width of the air inlet 104 is greater than the width of the first necked opening 105.
The width of the first neck-down opening 105 in this embodiment refers to the distance from the first inflection point 102 to the blade of the through-flow fan assembly 220, the width of the second neck-down opening 106 refers to the distance from the second inflection point 103 to the blade of the through-flow fan assembly 220, and the width of the air inlet 104 refers to the distance from the end point of the anti-surge structure 120 away from the air duct section 110 to the blade of the through-flow fan assembly 220.
Preferably, the width of the first neck-down 105 is 0.036-0.063 times the diameter of the blades of the cross-flow blade assembly 220.
It can be appreciated that the gradual contraction process from the air inlet 104 to the first inflection point 102 and then to the second inflection point 103 is beneficial to air intake and suppressing the generation of air duct surge.
In this embodiment, the anti-surge structure 120 includes an associated anti-surge segment 122 and extension segment 123. The anti-asthma groove 121 is provided in the anti-asthma section 122. The connection ends of the anti-asthma section 122 and the extension section 123 form a first inflection point 102, and the end of the anti-asthma section 122 remote from the extension section 123 is connected to the air duct section 110 and forms a second inflection point 103.
In the present embodiment, the first inflection point 102 and the second inflection point 103 form notches of the anti-asthma groove 121. This structure has a merit in that the air flow can be instantaneously accumulated or increased.
In other preferred embodiments, a smooth transition section may be provided between the first inflection point 102 and the second inflection point 103, that is, the anti-asthma groove 121 is formed in the anti-asthma section 122, and the notch of the anti-asthma groove 121 and the first inflection point 102 and the second inflection point 103 may be disposed at intervals.
Preferably, the extension 123 includes a first extension 1231 and a second extension 1233 connected.
The connection end of the first extension segment 1231 and the second extension segment 1233 forms a third inflection point 1235, and the third inflection point 1235 is used to form the third neck-down opening 107 with the through-flow fan assembly 220.
It is understood that the end of the second extension 1233 away from the first extension 1231 and the through-flow fan assembly 220 form the air inlet 104.
In this embodiment, the width of the air inlet 104 is greater than the width of the third neck-shrink mouth 107, and the width of the third neck-shrink mouth 107 is greater than the width of the first neck-shrink mouth 105.
The width of the third neck-down opening 107 in this embodiment refers to the distance from the third inflection point 1235 to the fan blade of the through-flow fan assembly 220.
That is, the process from the air inlet 104 to the third inflection point 1235, to the first inflection point 102, and to the second inflection point 103 is a gradual contraction process, which is beneficial to air intake and suppressing the generation of air duct surge.
It should be appreciated that in other preferred embodiments, the number of anti-snag slots 121 and guide points may vary differently, for example, two, three, four or more anti-snag slots 121, and four, five or more guide points.
Preferably, the first extension 1231 forms an angle of 3 ° to 13 ° with the perpendicular to the sidewall of the anti-asthma groove 121 to which it is connected, and the second extension 1233 forms an angle of 10 ° to 25 ° with the perpendicular to the sidewall of the anti-asthma groove 121.
It should be noted that, when the anti-surge structure 120 provided in this embodiment is designed as the above structure, namely: the anti-asthma groove 121 is provided with a deep opening end 1211 and a shallow opening end 1212, and the depth of the deep opening end 1211 is 0.023-0.088 times of the diameter of the through-flow fan blade assembly 220; the distance from the first inflection point 102 to the second inflection point 103 is 0.13-0.32 times of the diameter of the blades of the cross-flow fan assembly 220; the width of the first neck-shrinking opening 105 is larger than that of the second neck-shrinking opening 106, the width of the air inlet 104 is larger than that of the first neck-shrinking opening 105, and the width of the first neck-shrinking opening 105 is 0.036-0.063 times of the diameter of the fan blade of the through-flow fan blade assembly 220; the included angle between the first extension 1231 and the vertical line of the side wall of the anti-surge tank 121 connected with the first extension 1231 is 3 degrees to 13 degrees, the included angle between the second extension 1233 and the vertical line of the side wall of the anti-surge tank 121 is 10 degrees to 25 degrees, and the anti-surge effect is optimal and three layers of filter screens can be resisted.
Preferably, in the present embodiment, the anti-surge segment 122 and the extension segment 123 are integrally formed, the air duct segment 110 is arc-shaped, and the air duct segment 110 and the anti-surge structure 120 are integrally formed.
That is, the air duct section 110 and the anti-surge structure 120 provided in the present embodiment may be formed by bending plate materials, and the process is simple.
Second embodiment
Fig. 3 shows a first partial structure schematic diagram of the air conditioner provided in the present embodiment. Fig. 4 shows a second partial structure schematic diagram of the air conditioner provided by the present embodiment. Referring to fig. 3 and 4 in combination, the present embodiment provides an air conditioner, which is different from the air conditioner provided in the first embodiment in that the air duct structure 100 includes an air duct plate 310 and a reinforcement 320 detachably connected to each other.
One end of the air duct board 310 is used for being connected with the through-flow fan blade assembly mounting structure 210, and the other end of the air duct board 310 is used for being detachably connected with the reinforcement 320.
The duct plate 310 is generally plate-shaped and includes an arcuate section 312 and an extension section 313 that are connected at an obtuse angle.
The arc section 312 is in an arc plate shape, and is disposed around the periphery of the through-flow fan assembly 220, and one end of the arc section is used for connecting with the through-flow fan assembly mounting structure 210. It will be appreciated that the curvature of the arcuate segment 312 is equal or similar to the outer perimeter of the flow fan assembly 220. And the other end of the arcuate segment 312 is adapted to be adjacent to the cross-flow fan assembly 220.
The penetration section 313 has a plate shape for forming the anti-asthma groove 121 with the reinforcement 320, and the penetration section 313 is for forming one groove wall of the anti-asthma groove 121.
It should be noted that, in this embodiment, the connection end of the arc-shaped section 312 and the protruding section 313 forms the second inflection point 103.
It is understood that the second inflection point 103 is configured to protrude toward the through-flow fan assembly 220.
In this embodiment, the side of the arcuate segment 312 away from the second inflection point 103 is further provided with a holding protrusion 3121, and the holding protrusion 3121 is used for connection with the reinforcement 320.
Preferably, the protruding section 313 and the curved section 312 are integrally formed, which may be formed by bending a plate-shaped material, or may be injection-molded.
In this embodiment, the stiffener 320 includes a holding section 321, a connecting section 322, a leeward section 323, and a windward section 324 connected in sequence.
Wherein the connection section 322, the leeward section 323 and the windward section 324 are connected in a zigzag shape. The connection section 322 is attached to the protruding section 313 of the air duct board 310, and the leeward section 323 is used to form the anti-asthma groove 121 in cooperation with the protruding section 313 of the air duct board 310, and to form the other groove wall of the anti-asthma groove 121. The connection ends of the leeward section 323 and the windward section 324 form a first inflection point 102.
It will be appreciated that the first inflection point 102 also serves to project toward the cross-flow fan assembly 220.
Preferably, the clamping section 321 is bent to form a bayonet 3211, the clamping section 321 is connected to an end of the arc section 312 away from the leeward section 323, and the bayonet 3211 is engaged with the clamping protrusion 3121.
It will be appreciated that this connection is secure and easy to disassemble.
In other preferred embodiments, the connection between the retaining section 321 and the arcuate section 312 may be varied, such as adhesive bonding.
Preferably, in the present embodiment, the clamping section 321, the connecting section 322, the leeward section 323 and the windward section 324 are integrally formed.
Also, it is preferable that the reinforcement 320 is bent from a plate-shaped metal material to form the catching section 321, the connection section 322, the leeward section 323, and the windward section 324.
The arc-shaped section 312 corresponds to the air duct section 110 of the air duct structure 100 according to the first embodiment. The protruding section 313, the leeward section 323 and the windward section 324 integrally form the anti-surge structure 120 of the wind tunnel structure 100 provided in the first embodiment. The windward segment 324 corresponds to the extension segment 123 of the wind tunnel structure 100 provided in the first embodiment.
It should be understood that other variations of a are possible as long as the first inflection point 102, the second inflection point 103, and the anti-asthma groove 121 can be formed.
In summary, the air duct structure 100 provided in the embodiments of the present invention is used for being installed on an air conditioner and guiding wind. The duct section 110 of the duct structure 100 is configured to be coupled to the cross-flow fan assembly mounting structure 210, and the anti-surge structure 120 is configured to extend between the shroud 230 and the cross-flow fan assembly 220 and is disposed proximate to the cross-flow fan assembly 220. Because the anti-surge structure 120 is provided with the first inflection point 102 and the second inflection point 103 protruding towards the cross-flow fan blade assembly 220 to form a double-guide-point structure, and the anti-surge groove 121 is formed between the first inflection point 102 and the second inflection point 103, air flow can be accumulated, the air flow is automatically adjusted and supplemented into main air flow according to the change of an air channel working condition system, the transient air flow of an air channel is increased, the fan blade of the cross-flow fan blade assembly 220 is improved to be used as functional force, and therefore surge is effectively restrained, and the anti-surge structure is simple in structure and strong in practicability.
The air conditioner provided by the embodiment of the invention adopts the air duct structure 100, so that the blade working capacity of the cross-flow blade assembly 220 is improved, the occurrence of surge is effectively inhibited, and the air conditioner is simple in structure and high in practicability.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (7)
1. An air conditioner is characterized by comprising a cross-flow fan blade assembly mounting structure (210), a cross-flow fan blade assembly (220), a coaming (230) and an air duct structure (100), wherein the air duct structure (100) comprises an air duct section (110) and an anti-surge structure (120); the anti-surge structure (120) is provided with a first inflection point (102), the air duct section (110) is connected with the anti-surge structure (120) and forms a second inflection point (103), and an anti-surge groove (121) is arranged between the first inflection point (102) and the second inflection point (103);
the anti-surge structure (120) includes an anti-surge segment (122) and an extension segment (123) connected; the connecting ends of the anti-asthma section (122) and the extension section (123) form the first inflection point (102), one end of the anti-asthma section (122) away from the extension section (123) is connected with the air duct section (110) and forms the second inflection point (103), the anti-asthma groove (121) is arranged on the anti-asthma section (122), and the first inflection point (102) and the second inflection point (103) form a notch of the anti-asthma groove (121);
the anti-asthma groove (121) has a deep mouth end (1211) and a shallow mouth end (1212), the deep mouth end (1211) being disposed proximate to the first inflection point (102), the shallow mouth end (1212) being disposed proximate to the second inflection point (103);
the cross-flow fan blade assembly (220) is arranged on the cross-flow fan blade assembly mounting structure (210), the coaming (230) is annularly arranged on the periphery of the cross-flow fan blade assembly (220), the air duct section (110) is connected with the cross-flow fan blade assembly mounting structure (210), and the anti-surge structure (120) extends into the space between the coaming (230) and the cross-flow fan blade assembly (220) and is arranged close to the cross-flow fan blade assembly (220); the first inflection point (102) and the second inflection point (103) are protruded towards the cross-flow fan blade assembly (220); the opening direction of the anti-asthma groove (121) faces the cross-flow fan blade assembly (220);
the end point of the anti-surge structure (120) far away from the air duct structure (100) is used for forming an air inlet (104) with the through-flow fan blade assembly (220), the first inflection point (102) is used for forming a first neck-shrinking opening (105) with the through-flow fan blade assembly (220), and the second inflection point (103) is used for forming a second neck-shrinking opening (106) with the through-flow fan blade assembly (220); the width of the first neck-shrinking opening (105) is larger than that of the second neck-shrinking opening (106), and the width of the air inlet (104) is larger than that of the first neck-shrinking opening (105), so that the air inlet (104) reaches the first inflection point (102) and then reaches the second inflection point (103) to form a gradually shrinking state.
2. The air conditioner according to claim 1, wherein the extension section (123) includes a first extension section (1231) and a second extension section (1233) connected to each other, and a connection end of the first extension section (1231) and the second extension section (1233) forms a third inflection point (1235), and a protruding direction of the third inflection point (1235) and an opening direction of the anti-asthma groove (121) are located at the same side of the air duct structure (100).
3. The air conditioner according to claim 2, wherein the first extension (1231) forms an angle of 3 ° -13 ° with respect to the perpendicular to the sidewall of the anti-asthma groove (121), and the second extension (1233) forms an angle of 10 ° -25 ° with respect to the perpendicular to the sidewall of the anti-asthma groove (121).
4. The air conditioner of claim 1, wherein the anti-surge section (122) and the extension section (123) are integrally formed, the air duct section (110) is arc-shaped, and the air duct section (110) is integrally formed with the anti-surge structure (120).
5. An air conditioner according to claim 1, wherein the width of the first neck-down opening (105) is 0.036-0.063 times the diameter of the blades of the cross-flow blade assembly (220).
6. The air conditioner of claim 1, wherein the depth of the deep opening end (1211) is 0.023-0.088 times the blade diameter of the through-flow blade assembly (220); the distance from the first inflection point (102) to the second inflection point (103) is 0.13-0.32 times of the diameter of the fan blade of the through-flow fan blade assembly (220).
7. The air conditioner of claim 1, wherein the extension section (123) includes a first extension section (1231) and a second extension section (1233) connected to each other, a connecting end of the first extension section (1231) and the second extension section (1233) forming a third inflection point (1235), the third inflection point (1235) being configured to form a third neck-down opening (107) with the through-flow fan assembly (220); the end point of the second extension section (1233) far away from the first extension section (1231) is used for forming the air inlet (104) with the through-flow fan blade assembly (220), the width of the air inlet (104) is larger than that of the third neck-shrinking opening (107), and the width of the third neck-shrinking opening (107) is larger than that of the first neck-shrinking opening (105).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810037165.4A CN108036485B (en) | 2018-01-15 | 2018-01-15 | Air duct structure and air conditioner |
Applications Claiming Priority (1)
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| CN206094460U (en) * | 2016-09-20 | 2017-04-12 | Tcl空调器(中山)有限公司 | Air conditioner air duct subassembly and air conditioner that has it |
| CN206094309U (en) * | 2016-09-20 | 2017-04-12 | Tcl空调器(中山)有限公司 | Air conditioner and air conditioner |
| CN106907773A (en) * | 2017-03-22 | 2017-06-30 | 广东美的制冷设备有限公司 | Snail tongue, air channel structure and air-conditioner |
| CN106958537A (en) * | 2017-05-08 | 2017-07-18 | 珠海格力电器股份有限公司 | Spiral case and air-conditioner |
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| JPH01321837A (en) * | 1988-06-21 | 1989-12-27 | Matsushita Electric Ind Co Ltd | Motor driven blower |
| CN2427661Y (en) * | 2000-06-15 | 2001-04-25 | 浙江上风实业股份有限公司 | Axial-flow type ventilation machine anti shocking device |
| WO2009107689A1 (en) * | 2008-02-29 | 2009-09-03 | 三菱重工業株式会社 | Centrifugal compressor |
| CN102428282A (en) * | 2009-10-16 | 2012-04-25 | 三菱重工业株式会社 | Compressor for exhaust turbo-charger |
| CN102536907A (en) * | 2010-12-03 | 2012-07-04 | Lg电子株式会社 | Air blower for an air conditioner |
| CN204611967U (en) * | 2015-04-15 | 2015-09-02 | 青岛海尔空调电子有限公司 | Embedded type air conditioner |
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| CN206094460U (en) * | 2016-09-20 | 2017-04-12 | Tcl空调器(中山)有限公司 | Air conditioner air duct subassembly and air conditioner that has it |
| CN206094309U (en) * | 2016-09-20 | 2017-04-12 | Tcl空调器(中山)有限公司 | Air conditioner and air conditioner |
| CN106907773A (en) * | 2017-03-22 | 2017-06-30 | 广东美的制冷设备有限公司 | Snail tongue, air channel structure and air-conditioner |
| CN106958537A (en) * | 2017-05-08 | 2017-07-18 | 珠海格力电器股份有限公司 | Spiral case and air-conditioner |
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| CN108036485A (en) | 2018-05-15 |
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