CN2401833Y

CN2401833Y - Independent scavenger for air conditioner

Info

Publication number: CN2401833Y
Application number: CN 99240701
Authority: CN
Inventors: 朱斌生; 金培耕; 崔荣生; 周卫锋
Original assignee: Midea Group Co Ltd
Current assignee: Midea Group Co Ltd
Priority date: 1999-11-03
Filing date: 1999-11-03
Publication date: 2000-10-18
Anticipated expiration: 2009-11-03

Abstract

The utility model relates to an air exchanging device of an air conditioner, which comprises an air inlet pipeline and a draught fan device, wherein the draught fan device is provided with a volute casing, a volute casing cover, a wind wheel and a motor; an air inlet on one side of the volute casing is additionally provided with an n-shaped air inlet box which is communicated with the air inlet pipeline; an air inlet grid is arranged on the volute casing cover. The utility model which is arranged outdoors overcomes the defects of limited air exchanging amount, large noise and serious surging of the existing air exchanging device. The utility model has good heat dissipation function to the motor with improved working condition.

Description

A kind of air-conditioner independence air interchanger

The utility model relates to a kind of auxiliary member air interchanger of air conditioner, is meant a kind of outer independent air interchanger of air-conditioner that is installed on especially.

Air interchanger in the existing air-conditioner generally all adopts the pump drainage mode, to improve the freshness of room air to greatest extent.When air interchanger is installed in the indoor set, for the volume that reduces indoor set as far as possible or in order to utilize the existing mold of indoor set as far as possible, to reduce cost, the remaining space that air interchanger can utilize is all extremely limited, the power of air interchanger, volume etc. all are restricted, ventilation volume can't reach reasonable levels, and the room noise amount increases unavoidably; In being installed in off-premises station or outside the time because the admission line bore is little, air feed is not enough to produce more serious surge phenomenon, produces the operating mode of extreme differences such as noise is big, vibrations are big.

The purpose of this utility model provides a kind of air interchanger that meets the air motion rule, solves the problem of above-mentioned existence, prevents the appearance of surge phenomenon effectively, guarantees the performance of air interchanger.

The utility model provides a kind of air-conditioner air interchanger, comprise admission line, blower fan apparatus, blower fan apparatus comprises spiral case, be installed in wind wheel, spiral case lid in the spiral case, be installed in spiral case covers that the motor, the air inlet that drive wind wheel work are positioned at spiral case one side, the spiral case mouth is an exhaust outlet, the place adds inlet box at air inlet, and intake stack directly is connected with the inlet box mouth; Spiral case has covered air-inlet grille, and air-inlet grille is positioned at by the exhaust outlet.Wherein, inlet box is one to be buckled in the Jiong type lid at air inlet place, and the import that is connected with admission line is positioned at the front side that the Jiong type covers, and import department is and is inserted in horn-like on the admission line, horn mouth correspondence one narrows bag gathering, that connect slyness gradually, and sack and horn mouth junction bulge into ridge.

The utility model is described in further detail below in conjunction with accompanying drawing.

Accompanying drawing 1 is the utility model independence air interchanger assembling sequence schematic diagram; Accompanying drawing 2 is the utility model assembling back overall structure schematic diagrames; Accompanying drawing 3 is spiral case lid inwall molded lines schematic diagrames; Accompanying drawing 4 (1), (2) are the inlet box structural representations.

With reference to accompanying drawing.Composition structure of the present utility model comprises spiral case 2 (case), place wind wheel 3 in the spiral case (case), have spiral case lid 4, spiral case to cover and be fixed with drive motor 5 on the spiral case (case), at the inlet plenum 1 that air inlet 7 places relative with the spiral case lid install additional, admission line directly is connected with inlet plenum mouth 6.Wherein, spiral case mouth 8 promptly is an exhaust outlet, is processed with the molded lines 10 according to the fluid mechanics principle design on the spiral case lid inwall, and spiral case covers near exhaust ports and has air-inlet grille 9.

During design, the ratio value 1.75～2.0 of inlet plenum import cross-sectional area and impeller inlet sectional area; The inlet plenum cross section is generally rectangle, and its length-width ratio is 0.3～1.0.The inwall molded lines of spiral case (case) is based on the outer radius of wind wheel and the wind wheel outer rim beeline to the gas outlet, draws through corresponding hydrodynamics formula and through correction.

Because adopt outdoor air suction mode, and be subjected to indoor set volume and installation influence, the bore of admission line is all less, therefore cause deficiency of air, make the prior art air interchanger produce more serious surge phenomenon, cause noise and abominable operating mode.The utility model steadily is full of the inlet channel cross section equably according to air-flow, can reduce windage loss and obtain the fluid mechanics principle of air-flow stably, specially installs inlet plenum additional, and inlet plenum is made the overall structure types of convergence again of diffusion earlier; Be provided with various forms of holes or grid in outlet gas part in addition, form another air inlet, when increasing the exhaust outlet flow, avoiding surging condition to occur, also motor is also played good thermolysis.

Claims

1, a kind of air-conditioner air interchanger, comprise admission line, blower fan apparatus, blower fan apparatus comprises spiral case (2), be installed in wind wheel (3), spiral case lid (4) in the spiral case, be installed in spiral case covers that the motor (5), the air inlet (7) that drive wind wheel work are positioned at spiral case one side, the spiral case mouth is exhaust outlet (8), it is characterized in that the air inlet place adds inlet box (1), admission line directly is connected with inlet box mouth (6); Spiral case has covered air-inlet grille (9).

2, air interchanger as claimed in claim 1 is characterized in that inlet box is that a Jiong type that is buckled in the air inlet place covers, and the import that is connected with admission line is positioned at the front side of Jiong type lid.

3, air interchanger as claimed in claim 2 is characterized in that inlet box import department is to be inserted in horn-like on the admission line, horn mouth correspondence one narrow gradually gathering, connect slick and sly bag, sack and horn mouth junction bulge into ridge.

4, air interchanger as claimed in claim 1 is characterized in that the air-inlet grille that spiral case covers is positioned at by the exhaust outlet.

5,, it is characterized in that the ratio value 1.75～2.0 of inlet plenum import cross-sectional area and impeller inlet sectional area as claim 1 or 4 described air interchangers; The inlet plenum cross section is generally rectangle, and its length-width ratio is 0.3～1.0.