JP5045621B2 - Heat exchanger unit and air conditioner equipped with the same - Google Patents

Description

  The present invention relates to a heat exchanger unit having a main body heat exchanger and an auxiliary heat exchanger and an air conditioner including the heat exchanger unit.

Conventionally, a heat exchanger unit that includes a main body heat exchanger and an auxiliary heat exchanger and can realize high heat exchange efficiency is known (see, for example, Patent Document 1). Here, as the main body heat exchanger and the auxiliary heat exchanger, those in which a plurality of thin plate-like fins are arranged at equal intervals in the thickness direction and through which the heat transfer tube passes are used. In such a heat exchanger unit, the auxiliary heat exchanger is attached to the main body heat exchanger in a stacked state.
JP 2001-59628 A

  Here, when attaching the auxiliary heat exchanger to the main body heat exchanger, there is a risk of damage if the fins come into contact with each other, so a gap is formed between the fins of the main body heat exchanger and the fins of the auxiliary heat exchanger. Often. Therefore, when the auxiliary heat exchanger is attached to the main body heat exchanger in the heat exchanger unit as described above, a gap is formed between the fins of the main body heat exchanger and the fins of the auxiliary heat exchanger. In addition, it is necessary to perform the mounting work while supporting the auxiliary heat exchanger with the hand in a state of floating from the main body heat exchanger. Therefore, the operation | work which attaches an auxiliary | assistant heat exchanger to a main body heat exchanger is very complicated.

  The present invention has been made to solve the above-described problems, and includes a heat exchanger unit in which an auxiliary heat exchanger can be easily attached to a main body heat exchanger, and an air conditioner including the heat exchanger unit. The purpose is to provide.

A heat exchanger unit according to a first invention includes a main body heat exchanger having a plurality of first thin plates and a first end plate disposed at one end or both ends of the plurality of first thin plates, and a plurality of second thin plates. A thin plate, and a second end plate disposed at one or both ends of the plurality of second thin plates, and an auxiliary heat exchanger stacked on the main body heat exchanger, the first end plate or the The second end plate has a portion protruding toward the other, and when the auxiliary heat exchanger is attached to the main body heat exchanger in a stacked state, the first end plate and the second end are attached to the protruding portion. When the end plate abuts in the stacking direction of the auxiliary heat exchanger and the main body heat exchanger, the auxiliary heat exchanger is in a state where a gap is formed between the first thin plate and the second thin plate. It is comprised so that it may hold | maintain on the said main body heat exchanger.

  In this heat exchanger unit, the main body heat exchanger and the auxiliary heat exchanger can be stacked so that a gap is formed between the first thin plate and the second thin plate. Therefore, when the main body heat exchanger and the auxiliary heat exchanger are stacked, the first thin plate of the main body heat exchanger and the auxiliary heat exchanger can be supported without supporting the auxiliary heat exchanger by hand and floating from the main body heat exchanger. The second thin plate is held in a state where a gap is formed. Therefore, for example, when attaching the auxiliary heat exchanger in a state of being stacked on the main body heat exchanger, even when the first end plate of the main body heat exchanger and the second end plate of the auxiliary heat exchanger are fixed with screws or the like. The auxiliary heat exchanger can be easily attached while forming a gap with the main body heat exchanger.

  A heat exchanger unit according to a second invention is the heat exchanger unit according to the first invention, wherein the first end plate protrudes so as to cover a part of the plurality of first thin plates. have.

In this heat exchanger unit, it is possible to simplify the configuration in which the auxiliary heat exchanger is stacked on the main body heat exchanger while forming a gap between the first thin plate and the second thin plate.
A heat exchanger unit according to a third aspect of the present invention is the heat exchanger unit according to the second aspect of the present invention, wherein the first protrusion is configured to be usable as a ground terminal.
In this heat exchanger unit, when the auxiliary heat exchanger is not attached to the main body heat exchanger, the first protrusion can be used as a ground terminal.

  A heat exchanger unit according to a fourth invention is the heat exchanger unit according to the second or third invention, wherein the second end plate is a plurality of the second thin plates on the side opposite to the main body heat exchanger. A second projecting portion projecting so as to cover a part of the main body heat exchanger and the auxiliary heat exchanger in a stacked state, the first projecting portion and the second projecting portion, Are arranged at positions overlapping in the stacking direction.

  In this heat exchanger unit, when using either the first protrusion or the second protrusion as a ground terminal, the length of the ground wire connected to the ground terminal is limited regardless of the presence or absence of the auxiliary heat exchanger. Since they are almost the same, it is not necessary to prepare a plurality of types of ground wires. In addition, regardless of the presence or absence of the auxiliary heat exchanger, the ground terminal can be disposed at a position where it is not shaded by other components, so that the work of connecting the ground wire to the ground terminal is facilitated.

  An air conditioner according to a fifth invention includes the heat exchanger unit according to any one of the first to fourth inventions.

  In this air conditioner, the auxiliary heat exchanger can be easily attached to the main body heat exchanger while forming a gap between the first thin plate of the main body heat exchanger and the second thin plate of the auxiliary heat exchanger. Assembly work can be simplified.

  As described above, according to the present invention, the following effects can be obtained.

  In the first invention, the main body heat exchanger and the auxiliary heat exchanger can be stacked so that a gap is formed between the first thin plate and the second thin plate. Therefore, when the main body heat exchanger and the auxiliary heat exchanger are stacked, the first thin plate of the main body heat exchanger and the auxiliary heat exchanger can be supported without supporting the auxiliary heat exchanger by hand and floating from the main body heat exchanger. The second thin plate is held in a state where a gap is formed. Therefore, for example, when attaching the auxiliary heat exchanger in a state of being stacked on the main body heat exchanger, even when the first end plate of the main body heat exchanger and the second end plate of the auxiliary heat exchanger are fixed with screws or the like. The auxiliary heat exchanger can be easily attached while forming a gap with the main body heat exchanger.

  Furthermore, in 2nd invention, the structure which laminates | stacks an auxiliary heat exchanger on a main body heat exchanger can be simplified, forming a clearance gap between a 1st thin plate and a 2nd thin plate. Moreover, in 3rd invention, when an auxiliary heat exchanger is not attached to a main body heat exchanger, a 1st protrusion part can be utilized as a ground terminal.

  In the fourth invention, when using either the first protrusion or the second protrusion as the ground terminal, the length of the ground wire connected to the ground terminal regardless of the presence or absence of the auxiliary heat exchanger. Therefore, it is not necessary to prepare a plurality of types of ground wires. In addition, regardless of the presence or absence of the auxiliary heat exchanger, the ground terminal can be disposed at a position where it is not shaded by other components, so that the work of connecting the ground wire to the ground terminal is facilitated.

  In addition, in the fifth invention, the auxiliary heat exchanger can be easily attached to the main body heat exchanger while forming a gap between the first thin plate of the main body heat exchanger and the second thin plate of the auxiliary heat exchanger. As a result, assembly work can be simplified.

  Hereinafter, an embodiment of an air conditioner according to the present invention will be described based on the drawings.

[Basic configuration]
Drawing 1 is a typical perspective view which looked at indoor unit 1 of the air harmony machine concerning the embodiment of the present invention from diagonally forward. FIG. 2 is a schematic view of the indoor unit 1 shown in FIG. 1 as viewed from the front. 3 is a schematic cross-sectional view taken along the line III-III of the indoor unit 1 shown in FIG. FIG. 4 is a schematic view of the indoor unit 1 shown in FIG. 2 with a front panel 20, a front grille 17, and a filter unit 15 described later removed. Although only the indoor unit 1 will be described here, the air conditioner is configured by connecting an outdoor unit or the like to the indoor unit 1.

  As shown in FIG. 1, the indoor unit 1 of this embodiment has an elongated shape in one direction as a whole, and is attached to a wall surface in the room so that the longitudinal direction is horizontal. In the following description, the longitudinal direction of the indoor unit 1 is simply referred to as “longitudinal direction”. Further, the direction protruding from the wall to which the indoor unit 1 is attached is defined as “front”, and the opposite direction is defined as “rear”.

  The indoor unit 1 includes a main unit 10 and a front panel 20 attached to the front surface of the main unit 10. As shown in FIG. 3, the main unit 10 includes a main body casing 11, a heat exchanger unit 12, a crossflow fan 13, an electrical component unit 14, a filter unit 15, a cleaning unit 16, and a front grill 17. Is included.

  The heat exchanger unit 12, the cross flow fan 13, the electrical component unit 14, and the filter unit 15 are attached to the main body casing 11. The front grille 17 is attached to the front surface of the main body casing 11 so as to cover the constituent members such as the heat exchanger unit 12. The cleaning unit 16 is fitted into the front surface of the front grill 17 from the outside of the front grill 17 so as to be held in contact with the filter unit 15.

  As shown in FIG. 1, the front grill 17 has a top surface inlet 17 a formed in the ceiling portion. The top surface suction port 17a is formed with the ceiling portion of the front grill 17 in a lattice shape. In addition, a front suction port 20 a that is an elongated gap extending along the longitudinal direction is formed between the ceiling portion of the front grille 17 and the upper end of the front panel 20. Then, outside air is sucked into the front grill 17 from the top surface suction port 17a and the front side suction port 20a.

  As shown in FIG. 3, an air filter 51 supported by the filter unit 15 is disposed at a position facing the top surface suction port 17a and the front side suction port 20a. The air filter 51 is substantially horizontal up to the middle of the portion facing the top surface suction port 17a, and extends downward while curving outward from there. The air filter 51 removes dust or the like mixed in the air passing through the top suction port 17a or the front suction port 20a.

  The air filter 51 is provided in the filter unit 15 and can be moved by driving a pinion 52 located near the lower end of the air filter 51 shown in FIG. That is, the air filter 51 is in a position facing the top surface suction port 17a and the front suction port 20a shown in FIG. 3 during normal operation, but the pinion 52 is driven during the cleaning operation for cleaning the air filter 51, and Move around the back so that it folds backward.

  The cleaning unit 16 includes a brush 61 extending in the longitudinal direction. The cleaning unit 16 is fitted below the filter unit 15 so that the brush 61 comes into contact with a folded portion of the air filter 51 that moves by driving the pinion 52. Therefore, dust or the like attached to the air filter 51 can be removed by the brush 61 by driving the pinion 52 and moving the air filter 51 during the cleaning operation.

  As shown in FIGS. 3 and 4, the heat exchanger unit 12 includes a main body heat exchanger 21 and an auxiliary heat exchanger 24 stacked on the main body heat exchanger 21. The auxiliary heat exchanger 24 is for promoting heat exchange between the refrigerant and the air, and the heat exchanger unit 12 can realize high heat exchange efficiency by including the auxiliary heat exchanger 24. Note that whether or not the auxiliary heat exchanger 24 is stacked on the main body heat exchanger 21 differs depending on the model depending on the required capacity.

  As shown in FIG. 3, the main body heat exchanger 21 is configured by arranging a front portion 21 a and a rear portion 21 b in an inverted V shape. The front portion 24 a of the auxiliary heat exchanger 24 is attached to the front surface of the front portion 21 a of the main body heat exchanger 21. A rear portion 24 b of the auxiliary heat exchanger 24 is attached to the rear surface of the rear portion 21 b of the main body heat exchanger 21.

  Here, the length along the vertical direction of the front portion 24 a of the auxiliary heat exchanger 24 is shorter than the length along the vertical direction of the front portion 21 a of the main body heat exchanger 21. And the front side part 24a of the auxiliary heat exchanger 24 is attached so that the front surface of the front side part 21a of the main body heat exchanger 21 may be covered leaving the upper end part and a lower end part. As shown in FIG. 3, the electrical component unit 14 is disposed at a position facing the lower end portion not covered with the auxiliary heat exchanger 24 on the front surface of the front portion 21 a of the main body heat exchanger 21.

  A cross flow fan 13 is provided inside the inverted V shape of the heat exchanger unit 12. The cross flow fan 13 is called an axial fan, and is arranged such that its axial direction is along the longitudinal direction of the indoor unit 1. The main body casing 11 is formed with a scroll portion 11 a having a curved wall surface behind the cross flow fan 13. With the scroll portion 11a, air can be smoothly guided from the cross flow fan 13 to the air outlet 17b that opens to the lower front side of the front grill 17.

  The main body casing 11 has an upper wall surface 11b so as to be positioned above the air outlet 17b. The upper wall surface 11b is formed integrally with a drain pan 11c located below the front heat exchanger 12a. An electrical component unit 14 is disposed at a position between the drain pan 11 c and the front panel 20. A rear drain pan 11d is disposed below the rear heat exchanger 12b.

  The main casing 11, the front grille 17, and the front panel 20 are horizontally long. Moreover, the blower outlet 17b is formed so that it may extend along the longitudinal direction (lateral direction) of the front grille 17.

  In the indoor unit 1, the indoor air sucked by the cross flow fan 13 from the top surface suction port 17a and the front side suction port 20a on the upper surface is passed through the heat exchanger unit 12 to exchange heat with the refrigerant. Air cooling or heating is performed. The air after the heat exchange is blown out into the room from the air outlet 17b on the lower surface.

[Heat exchanger unit]
Here, the configuration of the heat exchanger unit 12 will be described in more detail with further reference to FIGS. 5 and 6. FIG. 5 is a perspective view of the vicinity of the right end of the heat exchanger unit 12 shown in FIG. FIG. 6 is an exploded perspective view of the heat exchanger unit 12. In FIG. 6, for convenience of explanation, a part of the heat transfer tube 27 described later is omitted. In the following description, the right end of the heat exchanger unit 12 shown in FIG. 4 is referred to as a “right end” and the left end is referred to as a “left end”.

  As shown in FIGS. 5 and 6, the main body heat exchanger 21 is a plate fin type heat exchanger having a plurality of thin plate-like fins 22 arranged at equal intervals along the longitudinal direction. A first end plate 23 is disposed at the end of the plurality of fins 22. The first end plate 23 is disposed at each end of the plurality of fins 22. Similarly to the main body heat exchanger 21, the auxiliary heat exchanger 24 includes a plurality of thin plate-like fins 25 arranged at equal intervals in the longitudinal direction, and a second end arranged at the ends of the plurality of fins 25. Plate 26. The second end plate 26 is disposed only on the right end side of the plurality of fins 25 disposed along the longitudinal direction.

  As shown in FIG. 5, the plurality of fins 22 and the first end plate 23 of the main body heat exchanger 21 and the plurality of fins 25 and the second end plate 26 of the auxiliary heat exchanger 24 include a refrigerant flow path. A plurality of straight portions 27a of the heat transfer tube 27 that pass through the longitudinal direction. The plurality of linear portions 27a of the heat transfer tube 27 are connected to each other by connecting portions 27b at the ends thereof.

  As shown in FIG. 6, the first end plate 23 on the right end side of the main body heat exchanger 21 is bent 90 ° at the front end, and protrudes so as to cover a part of the plurality of fins 22. A first protrusion 23a is formed. Therefore, when the auxiliary heat exchanger 24 is stacked on the front surface of the main body heat exchanger 21, the first protrusion 23 a is interposed between the fin 22 of the main body heat exchanger 21 and the fin 25 of the auxiliary heat exchanger 24. It functions as a spacer that forms a gap.

  In addition, the 1st protrusion part 23a functions as a ground terminal, when it is a model which does not provide the auxiliary heat exchanger 24. FIG. Therefore, the first protrusion 23a is formed with a notch 23b for stopping a screw for fixing the ground wire.

  The second end plate 26 of the auxiliary heat exchanger 24 is formed with a second projecting portion 26 a that is bent 90 ° at the front end and projects so as to cover a part of the plurality of fins 25. Yes. That is, the second protrusion 26 a covers a part of the plurality of fins 25 on the side opposite to the main body heat exchanger 21. Here, the 2nd protrusion part 26a is the position which overlaps with the 1st protrusion part 23a formed in the main body heat exchanger 21 in the lamination direction in the state where the main body heat exchanger 21 and the auxiliary heat exchanger 24 were laminated. Is formed. This 2nd protrusion part 26a functions as a ground terminal, and the notch 26b which stops the screw 30 for fixing a ground wire is formed.

  Here, an area that is not covered by the auxiliary heat exchanger 24 on the front surface of the main body heat exchanger 21, that is, an upper end portion in the present embodiment, so as to be able to correspond to a model that does not include the auxiliary heat exchanger 24. It is also conceivable to provide a ground terminal at the lower end. However, as described above, the electrical component unit 14 is disposed at a position facing the lower end portion of the front surface of the main body heat exchanger 21. Therefore, if a ground terminal is provided at this position, the ground wire cannot be connected. Moreover, since the indoor unit 1 is normally attached to the wall surface near the ceiling in the room, when a ground terminal is provided at the upper end of the front surface of the main body heat exchanger 21, it is difficult to connect the ground wire.

  As shown in FIG. 4, the second projecting portion 26 a that functions as a ground terminal in the present embodiment is not covered with other components or the like when the front panel 20, the front grille 17, and the filter unit 15 are removed. It is in the position exposed to the front. Moreover, the 2nd protrusion part 26a is located in the approximate center of the indoor unit 1 regarding the up-down direction. Therefore, the work for connecting the ground wire to the second protrusion 26a can be easily performed. Furthermore, as described above, the first protrusion 23a that functions as a ground terminal when the auxiliary heat exchanger 24 is not provided is provided at the same position as the second protrusion 26a in a front view. Therefore, even when the auxiliary heat exchanger 24 is not provided, the ground wire can be easily connected.

  The main body heat exchanger 21 and the auxiliary heat exchanger 24 are fixed by two screws 28 on the right end side thereof. Specifically, the first end plate 23 is formed with two screwing portions 23d protruding forward and having a screw receiving hole 23c on the upper and lower sides of the first protruding portion 23a. The second end plate 26 is formed with two screw receiving holes 26c. The two screws 28 are inserted through the screw receiving holes 23c and 26c, respectively. Therefore, a gap is formed between the main heat exchanger 21 and the auxiliary heat exchanger 24 between the fins 22 of the main body heat exchanger 21 and the fins 25 of the auxiliary heat exchanger 24 by the first protrusion 23a that is a spacer. It is fixed in the state that was done.

  Further, as shown in FIG. 4, a fixing member 29 is fitted on the left end side of the main body heat exchanger 21 and the auxiliary heat exchanger 24. The fixing member 29 is for fixing the heat exchanger unit 12 to the main body casing 11. Note that, on the left end side of the main body heat exchanger 21 and the auxiliary heat exchanger 24, the fixing member 29 is attached to the main body heat exchanger 21 and the auxiliary heat exchanger 24, so that the fin 22 and the auxiliary heat exchanger 21 are connected to the auxiliary heat exchanger 24. The main body heat exchanger 21 and the auxiliary heat exchanger 24 are positioned in a state where a gap is formed between the fins 25 of the heat exchanger 24.

[Assembly procedure of heat exchanger unit]
Here, the assembly procedure of the heat exchanger unit 12 will be described with further reference to FIGS. 7-11 is a figure which shows the heat exchanger unit 12 in the middle of an assembly. FIG. 7 is a perspective view showing a state before the auxiliary heat exchanger 24 is attached, and FIG. 8 is a side view of the state of FIG. FIG. 9 is a perspective view showing an attaching process of the fixing member 29. FIG. 10 is a perspective view showing a state in which the main body heat exchanger 21 and the auxiliary heat exchanger 24 are fixed, and FIG. 11 is a side view of the state of FIG.

  First, a main body heat exchanger 21 and an auxiliary heat exchanger 24 as shown in FIGS. 7 and 8 are prepared. Note that the connection portion 27 b is not attached to the heat transfer tube 27 on the right end side of the main body heat exchanger 21 and the heat transfer tube 27 on the right end side of the auxiliary heat exchanger 24.

  Next, the auxiliary heat exchanger 24 is stacked on the main body heat exchanger 21. At this time, the left end portion of the main body heat exchanger 21 and the left end portion of the auxiliary heat exchanger 24 are fitted into the fixing member 29, and the fixing member 29 is inserted. Is screwed to the first end plate 23 of the main body heat exchanger 21. Here, as shown in FIG. 9, the fixing member 29 has an insertion hole 29 a into which the connection portion 27 b of the heat transfer tube 27 of the main body heat exchanger 21 is fitted, and a connection portion 27 b of the heat transfer tube 27 of the auxiliary heat exchanger 24. And an insertion recess 29b into which is inserted. Therefore, by fitting the heat transfer tube 27 into the insertion hole 29a and the insertion recess 29b, the fin 22 of the main body heat exchanger 21 and the left end of the main heat exchanger 21 and the vicinity of the left end of the auxiliary heat exchanger 24 are connected. A gap is formed between the fins 25 of the auxiliary heat exchanger 24.

  At this time, in the vicinity of the right end portion of the main body heat exchanger 21 and the right end portion of the auxiliary heat exchanger 24, the first protrusion 23a of the first end plate 23 functions as a spacer, thereby the main body heat exchanger 21. A gap is formed between the fin 22 and the fin 25 of the auxiliary heat exchanger 24. Therefore, even if the auxiliary heat exchanger 24 is not lifted from the main body heat exchanger 21, the auxiliary heat exchanger 24 is held in a state where a gap is formed between the fins 22 of the main body heat exchanger 21 and the fins 25 of the auxiliary heat exchanger 24. .

  Finally, as shown in FIGS. 10 and 11, the right end of the main body heat exchanger 21 and the auxiliary heat exchanger 24 in which a gap is formed by the first protrusion 23 a is fixed with a screw 28, thereby exchanging heat. The container unit 12 is completed.

  As described above, the heat exchanger unit 12 of the present embodiment includes the main body heat exchanger 21 including the plurality of fins 22 and the first end plates 23 disposed at both ends of the plurality of fins 22, and the plurality of fins 25. , And an auxiliary heat exchanger 24 having a second end plate 26 disposed at one end of the plurality of fins 25. When the main body heat exchanger 21 and the auxiliary heat exchanger 24 are stacked, the first protrusion 23a formed on the first end plate 23 functions as a spacer, and the auxiliary heat exchange with the fins 22 of the main body heat exchanger 21 is performed. A gap is formed between the fin 24 of the vessel 24. Therefore, when the heat exchanger unit 12 is assembled, when the main body heat exchanger 21 and the auxiliary heat exchanger 24 are stacked, it is not necessary to support the auxiliary heat exchanger 24 by hand. It is possible to easily perform the work of fixing the first end plate 23 of the main body heat exchanger 21 and the second end plate 26 of the auxiliary heat exchanger 24 with screws 28 so as to be attached to the main body heat exchanger 21 in a stacked state. it can.

  Moreover, in the heat exchanger unit 12 of this embodiment, the 1st protrusion part 23a protrudes so that a part of several fin 22 may be covered. Therefore, it is possible to simplify the configuration in which the auxiliary heat exchanger 24 is stacked on the main body heat exchanger 21 while forming a gap between the fins 22 of the main body heat exchanger 21 and the fins 25 of the auxiliary heat exchanger 24. Furthermore, when the auxiliary heat exchanger 24 is not attached to the main body heat exchanger 21, the first protrusion 23a can be used as a ground terminal.

  In addition, in the heat exchanger unit 12 of the present embodiment, the second projecting portion 26a that projects on the second end plate 26 so as to cover a part of the plurality of fins 25 on the side opposite to the main body heat exchanger 21. Is formed. Then, in a state where the main body heat exchanger 21 and the auxiliary heat exchanger 24 are stacked, the first protruding portion 23a and the second protruding portion 26a are arranged at positions that overlap in the stacking direction. Therefore, when using either the 1st protrusion part 23a or the 2nd protrusion part 26a as a grounding terminal, the length of the ground wire connected to a grounding terminal is substantially the same irrespective of the presence or absence of the auxiliary heat exchanger 24. Therefore, it is not necessary to prepare a plurality of types of ground wires. In addition, regardless of the presence or absence of the auxiliary heat exchanger 24, the ground terminal can be disposed at a position where it is not shaded by other components, so that the ground wire can be easily connected to the ground terminal.

  As mentioned above, although one Embodiment of this invention was described based on drawing, it should be thought that a specific structure is not limited to these embodiment. The scope of the present invention is shown not by the above description of the embodiments but by the scope of claims for patent, and further includes meanings equivalent to the scope of claims for patent and all modifications within the scope.

  For example, in the above-described embodiment, the first end plate 23 of the main body heat exchanger 21 is disposed at both ends of the plurality of fins 22, and the second end plate 26 of the auxiliary heat exchanger 24 is the plurality of fins 25. Although the case where it has arrange | positioned only at the one end of this was demonstrated, it is not limited to this. Therefore, in the main body heat exchanger 21 and the auxiliary heat exchanger 24, it is only necessary that an end plate is provided on at least one end of the plurality of fins.

  In addition, in the above-described embodiment, the first end plate 23 of the main body heat exchanger 21 has a first protrusion that functions as a spacer between the fins 22 of the main body heat exchanger 21 and the fins 25 of the auxiliary heat exchanger 24. Although the case where the part 23a was formed was demonstrated, it is not limited to this. Therefore, for example, a portion that functions as a spacer between the fin 22 of the main body heat exchanger 21 and the fin 25 of the auxiliary heat exchanger 24 may be formed on the second end plate 26 of the auxiliary heat exchanger 24. However, it may be formed in both of them. Further, at least one of the first end plate 23 of the main body heat exchanger 21 and the second end plate 26 of the auxiliary heat exchanger 24 is provided between the fins 22 of the main body heat exchanger 21 and the fins 25 of the auxiliary heat exchanger 24. It is sufficient that a portion functioning as a spacer is formed, and the shape thereof can be changed. Accordingly, the portion functioning as the spacer is not limited to a shape protruding so as to cover a part of the fin.

  Furthermore, in the above-described embodiment, the heat exchanger unit 12 is fitted into the fixing member 29 at the left end thereof, so that there is a gap between the fin 22 of the main body heat exchanger 21 and the fin 25 of the auxiliary heat exchanger 24. Since the first protrusion 23a that functions as a spacer is formed only on the first end plate 23 at the right end of the main body heat exchanger 21, the first protrusion 23a is formed on the first end plates 23 at both ends. It may be formed.

  In addition, although the above-mentioned embodiment explained the case where the 1st projection part 23a formed in main body heat exchanger 21 and the 2nd projection part 26a formed in auxiliary heat exchanger 24 overlap in the lamination direction. These do not have to overlap in the stacking direction.

  In the above-described embodiment, the case where the first protrusion 23a functions as a ground terminal in the case where the auxiliary heat exchanger 24 is not provided is described. However, in the model where the auxiliary heat exchanger 24 is not provided. In some cases, a ground terminal may be provided separately from the first protrusion 23a.

  If this invention is utilized, an auxiliary heat exchanger can be easily attached.

It is the typical perspective view which looked at the indoor unit of the air conditioner concerning the embodiment of the present invention from the front diagonally upper side. It is the schematic diagram which looked at the indoor unit shown in FIG. 1 from the front. It is a III-III cross-sectional schematic diagram of the indoor unit shown in FIG. It is the schematic diagram which removed the front panel, front grille, and filter unit of the indoor unit shown in FIG. It is a perspective view of the right end part vicinity of the heat exchanger unit shown in FIG. It is a disassembled perspective view of the heat exchanger unit shown in FIG. It is a perspective view which shows the state before the auxiliary | assistant heat exchanger is attached in the middle of the assembly of the heat exchanger unit shown in FIG. FIG. 8 is a side view of FIG. 7. FIG. 5 is a perspective view showing a fixing member attaching step in the course of assembling the heat exchanger unit shown in FIG. 4. FIG. 5 is a perspective view showing a state in which the body heat exchanger and the auxiliary heat exchanger are fixed during the assembly of the heat exchanger unit shown in FIG. 4. It is a side view of FIG.

1 Indoor unit (air conditioner)
12 Heat Exchanger Unit 21 Main Body Heat Exchanger 22 Fin (First Thin Plate)
23 1st end plate 23a 1st protrusion part 24 Auxiliary heat exchanger 25 Fin (2nd thin plate)
26 2nd end plate 26a 2nd protrusion part

Claims (5)

A main body heat exchanger having a plurality of first thin plates and a first end plate disposed at one or both ends of the plurality of first thin plates;
A plurality of second thin plates, and a second end plate disposed at one or both ends of the plurality of second thin plates, and an auxiliary heat exchanger stacked on the main body heat exchanger,
The first end plate or the second end plate has a portion protruding toward the other,
When attaching the auxiliary heat exchanger in a state of being stacked on the main body heat exchanger, the first end plate and the second end plate are connected to the auxiliary heat exchanger and the main body heat exchanger at the protruding portion. The auxiliary heat exchanger is configured to be held on the main body heat exchanger in a state where a gap is formed between the first thin plate and the second thin plate by abutting in the stacking direction . A heat exchanger unit characterized by that.   2. The heat exchanger unit according to claim 1, wherein the first end plate has a first protruding portion that protrudes so as to cover a part of the plurality of first thin plates.   The heat exchanger unit according to claim 2, wherein the first protrusion is configured to be usable as a ground terminal. The second end plate has a second protrusion that protrudes so as to cover a part of the plurality of second thin plates on the side opposite to the main body heat exchanger,
The said 1st protrusion part and the said 2nd protrusion part are arrange | positioned in the position which overlaps with respect to the lamination direction in the state in which the said main body heat exchanger and the said auxiliary heat exchanger were laminated | stacked. Or the heat exchanger unit of 3. The air conditioner provided with the heat exchanger unit of any one of Claims 1-4.

Images