CN2386364Y

CN2386364Y - Heat transfer fin for indoor machine of air conditioner

Info

Publication number: CN2386364Y
Application number: CN 99215915
Authority: CN
Inventors: 张德春
Original assignee: STATE-RUN CHANGHONG MACHINE PLANT
Current assignee: STATE-RUN CHANGHONG MACHINE PLANT
Priority date: 1999-07-30
Filing date: 1999-07-30
Publication date: 2000-07-05
Anticipated expiration: 2009-07-30

Abstract

The utility model provides a heat transfer fin for an indoor machine of a room air conditioner. The lower section of the fin is bent into a circular arc shape. The upper section of the fin is folded along a bending opening in an acute angle towards an annular axial-flow fan direction. Thus, various parts of the fin are adjacent to an annular axial-flow fan. Thereby, the defect of insufficient heat exchange of a traditional fin can be overcome. Air conditioner operation noises can be effectively reduced.

Description

A kind of room air conditioner used for indoor machine heat exchange fin

The utility model relates to a kind of room air conditioner used for indoor machine heat exchange fin, more particularly, relate to the wall-hanging room air conditioner heat exchanger indoor unit of a kind of split heat exchange fin, this fin and U type heat exchange copper pipe are formed heat exchanger, U type heat exchange copper pipe is through one group of fin together by the copper tube with fins perforation, to increase the area of heat exchange.

At present, the room air conditioner indoor heat converter mainly contains various forms such as one-part form, two-part and syllogic, and every section all is linear patterns.Wherein two-part or syllogic heat exchanger are formed by stacking by two sections or three sections linear pattern fin bending certain angles respectively, or directly are formed by stacking by the fin of two sections or three sections once-formings.The two end portions of fin is far away from indoor annular axial-flow fan, and that fin is parallel to the part at tangential direction place, annular axial-flow fan cross section is nearer from fan, air-flow skewness when causing heat exchange, make heat exchanger heat exchange inequality, thereby make that heat exchanger heat exchange effect is relatively poor, utilize insufficiently, cause waste, and noise is bigger.Simultaneously, because of the heat exchanger heat exchange efficiency fails to make full use of, for reaching predetermined heat exchange effect; usually can increase the indoor fan motor rotating speed, with the raising air circulation, and this will increase the indoor set noise; reduce the comfortableness of air-conditioning, thereby influence whole room air conditioner integrated performance index.

It is even that the purpose of this utility model provides a kind of heat exchange, can effectively reduce the room air conditioner used for indoor machine heat exchange fin of noise.

For achieving the above object, room air conditioner used for indoor machine heat exchange fin of the present utility model is a two-part, hypomere is longer, bend to circular arc along annular axial-flow fan direction, and be positioned at the dead ahead of annular axial-flow fan, epimere is converted into acute angle along the bending mouth to annular axial-flow fan direction, and whole fin forms a C shape.The each several part of fin is all closer apart from annular axial-flow fan like this, during heat exchange, air-flow is comparatively even, heat exchange is also comparatively abundant, and it is all vertical substantially with the fin calking to enter the air flow of heat exchanger, and the resistance that is subjected to is less, the noise that produces is also less, heat exchange is abundant, can reduce annular axial-flow fan running speed, further reduces noise.

The utility model has improved the efficient of air-conditioner heat exchange effectively, the noise when having reduced operation of air conditioner also under equal heat exchange area, is obviously reduced the height of air conditioner room unit, has satisfied the requirement that the user reduces indoor set size and volume.

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail and illustrates, wherein:

Fig. 1 is existing two-part fin front view

Fig. 2 is fin shown in Figure 1 state diagram when using

Fig. 3 is the utility model embodiment fin front view

Fig. 4 is a fin heat exchange schematic diagram shown in Figure 3

A bending mouth 2 is arranged at the top of fin 1 among Fig. 1, and to annular axial-flow fan 3 direction bendings, the high end separating annular axial-flow fan 3 of the lower portion of fin 1 hypomere and epimere is far away along bending mouth 2 for fin among Fig. 2, when heat exchange, air quantity is less, and air-flow is inhomogeneous, and exchange efficiency is low.

In Fig. 3, Fig. 4, room air conditioner used for indoor machine heat exchange fin 4 of the present utility model is a two-part, and hypomere is longer, bend to C shape along annular axial-flow fan 3 directions, promptly approach circular arc, and be positioned at the dead ahead of ring-type fan 3, epimere is converted into acute angle along bending mouth 5 to ring-type fan 3 directions.The various piece of fin 4 is all closer apart from fan like this, during heat exchange, air-flow is just comparatively even, heat exchange is also comparatively abundant, and it is vertical with fin calking 6 to enter the heat exchanger air flow, and the resistance that is subjected to is less, the noise that produces is also less, heat exchange is abundant, can reduce the speed of annular axial-flow fan 3, further reduces noise.U type heat exchange copper pipe by finned tube copper perforation 7 with heat exchange fin 4 through together, constitute heat exchanger.

For making air-flow and exchange heat more reasonable, do not carry out calking in the inboard of middle and upper part parts of fin 4 hypomeres.

For further improving heat exchanger effectiveness, fin 4 epimeres also can be taked suitable bending.

Claims

1. a room air conditioner used for indoor machine heat exchange fin (4), be divided into two sections, it is characterized in that hypomere is longer, bend to circular arc along annular axial-flow fan (3) direction, and be positioned at the dead ahead of annular axial-flow fan (3), epimere is converted into acute angle along bending mouth (5) to annular axial-flow fan (3) direction, and whole heat exchange fin (4) forms a C shape.

2. fin according to claim 1 (4) is characterized in that calking is not carried out in the inboard of middle and upper part part of fin (4) hypomere.