JP2006258394A - Heat exchanger of air conditioner indoor unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat exchanger of an air conditioner indoor unit surely fixing a front heat exchanger and a rear heat exchanger at predetermined angles. <P>SOLUTION: This heat exchanger is provided with: end plates mounted at ends on both sides of the front heat exchanger and the rear heat exchanger; a plurality of radiation fins arranged side by side between the end plates with distances from one another; a plurality of heat transfer tubes penetrating the end plates and the radiation fins; and fixing means having locking parts for locking an end of the front heat exchanger and an end of the rear exchanger such that each of the front heat exchanger and the rear exchanger forms a reverse-V shape in profile. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a heat exchanger for an air conditioner indoor unit, and more particularly to a heat exchanger for an air conditioner indoor unit having an improved mounting structure for a front heat exchanger and a rear heat exchanger.

  2. Description of the Related Art Conventionally, an indoor unit of an air conditioner is housed in a state in which a front heat exchanger and a rear heat exchanger are connected and bent in an indoor unit body having an air inlet and an outlet.

  Generally, in order to maintain both heat exchangers in a bent state, a fixing structure using a fixing plate for fixing the upper heat exchanger and the lower heat exchanger and a screw for screwing the fixing plate is used (for example, Patent Document 1).

However, the fixing structure described in Patent Document 1 is suitable for maintaining the bending of the heat exchanger that is integrally communicated, but when applied to a heat exchanger in which both heat exchangers are separated, It is difficult to fix each heat exchanger while maintaining a predetermined angle. In addition, when each heat exchanger deviates from a predetermined angle, it becomes difficult for the heat exchanger to be accommodated in the casing when the air conditioner indoor unit is assembled, or an extra gap is generated, from which air enters and matures. This may cause a decrease in replacement performance.
JP-A-6-109271

  The present invention has been made in view of the above-described circumstances, and an object thereof is to provide a heat exchanger for an air conditioner indoor unit that can securely fix a front heat exchanger and a rear heat exchanger at a predetermined angle. To do.

  In order to achieve the above object, a heat exchanger for an air conditioner indoor unit according to the present invention includes a front heat exchanger and a rear heat exchanger disposed in the indoor unit of the air conditioner, and the heat exchangers of the respective heat exchangers. End plates provided at both ends, a plurality of heat dissipating fins arranged in parallel with each other between the end plates, a plurality of heat transfer tubes penetrating the end plates and the heat dissipating fins, and the front heat Fixing having a locking portion for locking the end of the front heat exchanger and the end of the rear heat exchanger so that the exchanger and the rear heat exchanger have an inverted V shape in a side view. It is provided with a tool.

  According to the heat exchanger for an air conditioner indoor unit according to the present invention, it is possible to provide a heat exchanger for an air conditioner indoor unit that can reliably fix the front heat exchanger and the rear heat exchanger at a predetermined angle. it can.

  Hereinafter, a heat exchanger of an air conditioner indoor unit according to an embodiment of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a perspective view of an air conditioner incorporating a heat exchanger for an air conditioner indoor unit according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view thereof.

  As shown in FIG.1 and FIG.2, the air conditioner indoor unit 1 which concerns on this invention has the main body 2 which consists of the casing 2a and the housing | casing 2b, and this main body 2 has the front panel 3 in the front part. The front suction port 3a is opened on the front side of the front panel 3, and the upper suction port 3b is opened on the upper surface.

  Further, an indoor heat exchanger 6 including a front heat exchanger 4 and a rear heat exchanger 5 is disposed in the indoor unit main body 2, and in front of the front heat exchanger 4 and behind the front suction port 3a. A filter 7 is disposed, and an indoor fan 8 is disposed behind the front heat exchanger 4. A conditioned air outlet 9 is formed below the indoor fan 8. The air outlet 9 is provided with a louver 10 that adjusts the direction of air-conditioning air.

  In addition, the front heat exchanger 4 and the rear heat exchanger 5 forming the indoor heat exchanger 6 have a plurality of heat transfer tubes 12 on a plurality of aluminum fins 11 arranged in parallel with a predetermined interval in the longitudinal direction. Is a fin-tube type heat exchanger that is formed in a substantially inverted V shape when viewed from the side, and the front heat exchanger 4 is bent in a plurality of stages so as to protrude forward on the front side. The rear heat exchanger 5 has a curved shape, is connected to the front heat exchanger 4, is opposed to the upper surface or the rear surface side, and is inclined downward toward the rear surface side.

  Furthermore, the lower part of the front side heat exchanger 4 faces the front side drain pan 2b1 formed integrally with the housing 2b, and the lower side of the rear side heat exchanger 5 faces the rear side drain pan 2b2.

  A seal member 13 is provided in the gap between the upper portion of the front heat exchanger 4 and the upper portion of the rear heat exchanger 5 along the longitudinal direction of the heat exchanger 4. The seal member 13 prevents a decrease in heat exchange performance caused by air entering from the gap.

  As shown in FIGS. 2 and 3, the front heat exchanger 4 and the rear heat exchanger 5 are provided with a front end plate 14 and a rear end plate 15 made of sheet metal at both left and right ends, respectively. The protruding portion 12a protrudes. The front end plate 14 is bent in an L-shaped cross section, one piece becomes a parallel surface portion 14a parallel to the aluminum fin 11, and the other piece portion is orthogonal to the parallel surface portion 14a along one side end of the parallel surface portion 14a. It protrudes in parallel with the heat transfer tube protruding portion 12a as a bent curved surface portion 14b. Similarly, the rear side end plate 15 has a parallel surface portion 15a and a bent surface portion 15b.

  The front heat exchanger 4 and the rear heat exchanger 5 are integrally fixed by a fixture 16.

  The fixture 16 includes a front locking portion 16a that locks the upper end portion of the front end plate 14 of the front heat exchanger 4 and a rear locking portion of the rear end plate 15 of the rear heat exchanger 5. The front side locking part 16 b has a side locking part 16 b and the front side locking part 16 a and the rear side locking part 16 b are bent from the end of the connecting piece 17.

  The front side locking portion 16a includes two front side first locking pieces 16a1 and a front side second locking piece 16a2 which are bent from one end of the connecting piece 17 with a gap A therebetween, and the front side second locking piece 16a2. Is provided by bending a part of the front first locking piece 16a1 so as to be parallel to the front first locking piece 16a1.

  The bent surface portion 14b of the end plate 14 is inserted into the gap A between the front first locking piece 16a1 and the front second locking piece 16a2.

  Further, a front side fixing piece 19a fixed by a parallel surface portion 14a of the front side end plate 14 and a fixing screw 18 is bent and provided in parallel to the parallel surface portion 14a at the end portion of the front first locking piece 16a1. .

  Similarly, the rear locking portion 16b includes two rear first locking pieces 16b1 and a rear second locking piece 16b2 that are bent from one end of the connecting piece 17 with a gap B therebetween. The side second locking piece 16b2 is bent and provided so as to be parallel to the rear first locking piece 16b1 by cutting out a part of the rear first locking piece 16b1.

  The bent surface 15b of the rear end plate 15 is inserted into the gap B between the rear first locking piece 16b1 and the rear second locking piece 16b2.

  Further, a rear side fixing piece 19b fixed by a parallel surface portion 15a of the rear end plate 15 and a fixing screw 18 is provided at the end portion of the rear first locking piece 16b1 so as to be bent in parallel with the parallel surface portion 15a. It has been.

  Thus, the angle formed by the front exchanger 4 and the rear heat exchanger 5 that are integrally fixed by the fixing tool 16 is the angle formed by the front locking part 16a and the rear locking part 16b of the fixing tool 16. It is decided by.

  In addition, a seal member stopping piece 20 for stopping the side end of the seal member 13 is provided on the front side fixed piece 19a bent from the end portion of the front side locking piece 16a1 so as to extend from the end portion of the front side fixed piece 19a. It has been.

  From the above-described configuration, the front end plate 14 of the front exchanger 4 and the rear end plate 15 of the rear heat exchanger 5 are inserted into the fixture 16 and locked, and fixed with the fixing screw 18. Since the front heat exchanger 4 and the rear heat exchanger 5 can be securely fixed at a predetermined angle, the assemblability is improved, there is no extra gap, and the deterioration of the heat exchange performance can be prevented. it can.

  In addition, since the seal member stopping piece 20 for stopping the side end of the seal member 13 is provided on the fixture 16, the seal member 13 is not displaced at the time of assembling and the assemblability is improved.

  As described above, according to the heat exchanger for an air conditioner indoor unit according to the present embodiment, the heat exchanger for an air conditioner indoor unit that can reliably fix the front heat exchanger and the rear heat exchanger at a predetermined angle. Is realized.

The perspective view of the air conditioning apparatus with which the heat exchanger of the air conditioner indoor unit which concerns on one Embodiment of this invention was integrated. Sectional drawing of the air conditioning apparatus with which the heat exchanger of the air conditioner indoor unit which concerns on one Embodiment of this invention was integrated. The perspective view which expands and shows the bending part of the heat exchanger of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Air conditioner indoor unit, 2 ... Main body, 4 ... Front side heat exchanger, 5 ... Rear side heat exchanger, 6 ... Indoor heat exchanger, 7 ... Filter, 11 ... Aluminum fin, 12 ... Heat transfer tube, 12a ... Heat transfer tube protrusions, 13 ... sealing member, 14 ... front end plate, 15 ... rear end plate, 16 ... fixture, 18 ... fixing screw, 20 ... sealing member stop piece.

Claims (2)

A front heat exchanger and a rear heat exchanger disposed in the indoor unit of the air conditioner;
End plates provided at both end portions of each heat exchanger, a plurality of heat radiation fins arranged side by side with a gap between the end plates, and a plurality of transmission plates penetrating the end plates and the heat radiation fins. The end of the front heat exchanger and the end of the rear heat exchanger are locked so that the heat pipe, the front heat exchanger, and the rear heat exchanger have an inverted V shape in a side view. An air conditioner indoor unit heat exchanger comprising a fixture having a locking portion. The both heat exchangers include a seal member that fills a gap between an upper portion of the front heat exchanger and an upper portion of the rear heat exchanger, and the fixing device makes contact with a side end of the seal member. Item 2. An air conditioner indoor unit heat exchanger according to Item 1.

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