JPH02106632A - Airconditioner - Google Patents

Abstract

PURPOSE:To make it possible to increase the number of rows of heat transfer tubes of a heat exchanger within the range of prior art outside dimensions and improve its capacity by folding a heat exchanger incorporated into an indoor unit. CONSTITUTION:A heat exchanger 1 is folded in such a manner that an upper heat exchanger 1a and a lower heat exchanger 1b may have an angle at a specified and longitudinal position of fins 1c. The fins 1c are designed to connect the upper heat exchanger 1a with the lower heat exchanger 1b. Heat transfer tubes are provided with the number of 14 stages in two rows, where H stands for the height of an indoor unit while D stands for the thickness and Y for the minimum span between the fan 2 and the heat exchanger 1, only 13 stages will be available if an attempt is made to build the prior art heat exchanger without changing the dimensions H, D, and Y. This construction makes it possible to build in a larger heat exchanger within the outside dimensions of the prior art indoor unit, and moreover increase its suction area as well, and heat exchange with a larger air capacity in terms of the same noise value. It is, therefore, possible to increase its capacity dramatically.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to improving the performance and downsizing of air conditioners.

BACKGROUND OF THE INVENTION The indoor unit of a conventional separate air conditioner includes a heat exchanger, a fan, a water tray,
It consists of five frames for the blowout grill, a front grill, a filter, etc., and in order to improve the performance of the heat exchanger within the limited thickness of the indoor unit, the heat transfer tubes were arranged in two rows and in multiple stages.

Problems to be Solved by the Invention However, in order to further improve the performance of the conventional air conditioner described above, the thickness or height of the indoor unit will increase. There is also no space to install an air purifier as an additional function.

Therefore, the present invention aims to improve the performance of a heat exchanger within the external dimensions of a conventional indoor unit, and also to make it possible to install an air purifier as an additional function. Or, if the performance is the same, the purpose is to downsize the indoor unit.

Means for Solving the Problems In order to solve the above problems, the present invention provides a heat exchanger incorporated in the indoor unit 7) by providing notches at both ends of the fins at predetermined positions in the longitudinal direction of the fins, so that the upper heat The exchanger and the lower heat exchanger are constructed of integral fins connected at the center so as to form a predetermined angle.

In addition, in consideration of water treatment during cooling operation, the present invention has a fin notch shape of the heat exchanger that, at the notch on the inside of the bending angle, the notch distance of the upper heat exchanger is L1, and the notch distance of the lower heat exchanger is It is composed of fins having a shape such that L 1 < L 2 when the notch distance is L2.

Further, the present invention has a configuration in which an air purifier or the like is provided on the windward side of the ventilation circuit of the bent upper heat exchanger.

Further, the present invention has a structure in which an upper heat exchanger is a bent heat exchanger that takes water treatment during cooling into consideration, and a frame is attached to the end plate of the upper heat exchanger so that an air purifier can be attached and detached.

action The effects of the above means are as follows.

The present invention makes it possible to increase the number of heat transfer tube stages of the heat exchanger within the conventional external dimensions by bending the heat exchanger incorporated in the indoor unit, thereby improving performance.

Furthermore, the present invention prevents water from dripping from the lower end of the upper heat exchanger during cooling operation using a bent heat exchanger (it can be treated with a water tray).

Further, according to the present invention, an air purifier can be incorporated within the same external dimensions as conventional ones.

Furthermore, according to the present invention, an air purifier and the like can be attached and detached.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings.

First, a first embodiment of the present invention will be described with reference to FIG. This figure is a side sectional view of the indoor unit.

In the same figure, l is a heat exchanger 1fA 2S, 2 is a fan, 3 is a water tray, 4 is an outlet grill, 5 is an underframe, 6 is a front grill,
7 is a filter, and 8 is a vertical wind direction changing blade. Here, the first heat exchanger is an upper heat exchanger 1a and a lower heat exchanger 1b.
are bent at an angle at a predetermined position in the longitudinal direction of the fin 1c, and the fin lc is bent at a predetermined position in the longitudinal direction of the fin 1c.
and the lower heat exchanger 1b. Furthermore, heat exchanger tube 1d
has two rows and 14 stages. Here, assuming that the indoor unit height dimension I (, thickness dimension D, and minimum pressure My of fan 2 and heat exchanger 1 is My), if a conventional heat exchanger is installed without changing H, D, and y, there will be only 13 stages. Cannot be incorporated.

(The dimensions of the step pitch P of the heat exchanger tube 1d, the outer diameter d2 of the fan 2, the water tray 3, etc. are the same, for example, H = 3601nn.

D = 150a+m, y = 6m, p
=21a+m, d=86n+m. ) Therefore, it is possible to incorporate a larger heat exchanger 1 (2 rows and 14 stages) with the external dimensions of a conventional indoor unit, and the suction area is also larger, so a larger air volume can be generated for the same noise level. can exchange heat with Therefore, performance can be significantly improved.

Next, a second embodiment of the present invention will be described with reference to FIGS. 2 and 3.

Components that are the same as those in the first embodiment are given the same reference numerals and their description will be omitted.

FIG. 2 is a side sectional view of the indoor unit.

FIG. 3 is an enlarged view of the bent portion of the heat exchanger 1.

From this figure, when the notch length of the upper heat exchanger 1a is L1 and the notch length of the lower heat exchanger 1b is L2, Ll<12
Therefore, in the bent state, the upper heat exchanger 1a
The lower end of is inside the fin lc of the lower heat exchanger 1b.

According to the above configuration, during cooling operation, water droplets from the lower end of the upper heat exchanger la do not drip onto anything other than the water tray or jump onto the fan, making it possible to perform good water treatment.

Next, a third embodiment of the present invention will be described with reference to FIG.

Components that are the same as those in the first embodiment are given the same reference numerals and their description will be omitted.

In FIG. 4, 9 is an air cleaner. External dimensions H,
An air purifier can be installed without changing D, etc., making it possible to achieve healthy air conditioning.

Next, a fourth embodiment of the present invention will be described with reference to FIG.

Here, regarding the same things as the first and second embodiments,
The same reference numerals are given and the explanation is omitted.

In FIG. 5, IO is an air purifier mounting frame, which is fixed to the upper heat exchanger 1a and the heat exchanger end plates 11 at both ends of the upper heat exchanger 1a. The air cleaner 9 is held by the air cleaner mounting frame 1o on the windward side of the upper heat exchanger 1a with a distance #L3 from the upper heat exchanger 1a. Further, the shape of the notch of the heat exchanger l satisfies Ll<L2. (See Figure 6).

Therefore, according to the above configuration, the air purifier 9 performs a good air purifying function without coming into contact with water droplets on the fins during cooling operation, and the air purifier 9 can be easily replaced because it can be attached and detached in the direction of the arrow in the figure. and upper heat exchanger 1a.
The water treatment at the lower end of the fin 1c is also good. Since the attachment/detachment mechanism of the air cleaner 9 is well known, the explanation thereof will be omitted.

Further, with the above configuration, it is possible to round or chamfer the upper part for appearance, and a design with vertical contrast is also possible. Additionally, by creating an opening at the top of the front grille and bending the filter to fit the opening, it is possible to exchange heat with a larger volume of air for the same noise level, significantly improving performance.

Effects of the Invention As is clear from the above explanation, the air conditioner incorporating the folding heat exchanger of the present invention can incorporate a large heat exchanger without changing the external dimensions compared to the conventional one, and has significantly improved performance. can be improved. Furthermore, since the fins are the same for the upper heat exchanger and the lower heat exchanger, the heat exchangers can be manufactured at the same time.

Furthermore, since the lower ends of the fins of the upper heat exchanger are placed inside the fins of the lower heat exchanger, water treatment during cooling operation can be performed reliably.

In addition, an air purifier or the like can be incorporated into the space created by bending, and an air purifying function can be provided with conventional external dimensions.

In addition, the air purifier is removable and the distance from the heat exchanger is maintained, so the air purifying effect can be maintained even during cooling operation, and the lower end of the fins of the upper heat exchanger can be used to exchange heat with the lower end of the fins. Since it is placed inside the fins of the container, water treatment can be performed reliably during cooling operation. Furthermore, by opening the upper part of the front grille, it is possible to exchange heat with a larger volume of air for the same noise level, significantly improving performance. In addition, due to design considerations, it is also possible to make the side shapes of the indoor unit vertically symmetrical, etc.
It has various effects.

[Brief explanation of drawings]

FIG. 1 is a side sectional view of an indoor unit showing a first embodiment of the present invention, FIG. 2 is a side sectional view of an indoor unit showing a second embodiment of the invention, FIG. 1 is an enlarged view of a folded part, and FIG. Figure 4 is a side sectional view of an indoor unit showing a third embodiment of the present invention;
FIG. 5 is a side sectional view of an indoor unit showing a fourth embodiment of the present invention, FIG. 6 is an enlarged view of a bent portion, and FIG. 7 is a side sectional view of an indoor unit showing a conventional example. l... Heat exchanger, la... Upper heat exchanger, lb... Lower heat exchanger, 1c...
Fin, ld...Heat transfer tube, 9...Air purifier, IO...Air purifier mounting frame. Name of agent: Patent attorney Shigetaka Awano Haka1 person I ---
1 Hunting 2 Performance Cora - 2nd part of the game 1b - Part 2! iA diplomatic investigation! -Translation 2 倹 rakla ---J:13111I! Cost invasion D1b'-Lower grudge exchange 5 1cm Fin ld...-Wed etc. Lower part of the evil luster - intercourse 5 fin j milto movement j l Piezoelectricity in the notch of the upper drunken exchanger 1a - I6 ... - C Id - P exchange number J: capital exchange groove Gero P Maso 3 Finn's Story Shinomiya IO-゛ Air Wave,? Fixed vessel number diagram layer...i! Exchange 5 No C --- Fin 1 d -- Iden P pipe

Claims (4)

[Claims] (1) Consisting of fins arranged in parallel at regular intervals, through which air flows, and heat transfer tubes inserted at right angles to the fins, through which refrigerant flows, the fins are placed at predetermined positions in the longitudinal direction of the fins. A heat exchanger with a notch on both ends, and an integral fin connected at the center so that the upper heat exchanger above the notch and the lower heat exchanger below the notch form a predetermined angle. Air conditioner equipped with an exchanger. (2) At the notches at both ends of the fin, change the shape of the notch so that the corner of the fin on the upper heat exchanger is located inside the fin at the lower heat exchanger, and at the notch on the inside of the bending angle, The air conditioner according to claim 1, wherein the air conditioner is constituted by a fin having a notch shape such that L1<L2, where L1 is the notch distance of the lower heat exchanger, and L2 is the notch distance of the lower heat exchanger. (3) A claim in which a filter, etc. having an air purifying function is provided on the windward side of the ventilation circuit of the bent upper heat exchanger (
The air conditioner described in 1) or (2). (4) Claim (2) wherein a frame for fixing a filler having an air purifying function is provided on the windward side of the ventilation circuit of the bent upper heat exchanger, and this frame is fixed to the upper heat exchanger and its end plate. Or the air conditioner described in (3).