JP2016085009A - Heat exchanger, air conditioner, and method of manufacturing heat exchanger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat exchanger, an air conditioner, and a method of manufacturing the heat exchanger capable of being easily assembled regardless of manufacturing dimensional error.SOLUTION: A heat exchanger includes a sub-heat exchange portion 41 and a main heat exchange portion 31, a sub-plate 43 of the sub-heat exchange portion 41 is provided with a sub-side engagement portion 46 projecting in a direction separating from sub-fins 42 of the sub-heat exchange portion 41 along a face of the sub-plate 43, and a main plate 33 of the main heat exchange portion 31 is provided with a main-side engagement portion 36 engaged with the sub-side engagement portion 46 from a stacking direction of main fins 32 of the main heat exchange portion 31 in a state that the sub-heat exchange portion 41 is disposed in adjacent to the main heat exchange portion 31.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a heat exchanger provided in an indoor unit of an air conditioner, an air conditioner including the heat exchanger, and a method for manufacturing the heat exchanger.

  Conventionally, an air conditioner that houses a blower, a heat exchanger, etc. inside a housing, sucks indoor air, adjusts temperature and humidity, and then discharges the air to indoor air conditioner. Are known. An example of a heat exchanger provided in such an air conditioner is disclosed in Patent Document 1.

  The heat exchanger disclosed in Patent Document 1 includes a main heat exchanger (main heat exchanger) and a sub heat exchanger (auxiliary heat exchanger) that is attached to the main heat exchanger and performs supercooling. Configured.

  And when manufacturing a heat exchanger, although an operator assembles a sub heat exchanger to these main heat exchangers, it describes in patent documents 1 without using a bolt etc. in order to make an assembling easy. Such a structure may be employed in which the claw portion of the sub heat exchanger is engaged with the main heat exchanger.

JP 2007-78265 A

  However, the main heat exchanger and the sub heat exchanger have solid differences due to manufacturing dimensional errors. In some cases, the sub heat exchanger cannot be smoothly attached to the main heat exchanger due to the influence of the solid difference. And in the structure of the nail | claw part described in patent document 1, it is difficult to eliminate the difficulty of the assembly | attachment by such a dimensional error.

  The present invention has been made to solve the above-described problems, and provides a heat exchanger, an air conditioner, and a method of manufacturing a heat exchanger that can be easily assembled regardless of manufacturing dimensional errors.

In order to solve the above problems, the present invention employs the following means.
The heat exchanger according to the first aspect of the present invention includes a plurality of sub fins laminated at intervals, a sub plate disposed on one end side in the stacking direction of the sub fins, and the sub use A sub heat exchanging portion having a sub pipe arranged so as to penetrate the fin and the sub plate, a main fin having a plurality of layers laminated at intervals, and arranged on one end side in the stacking direction of the main fin A main heat exchange section having a main pipe disposed so as to pass through the main fin and the main plate, and the sub plate includes the sub plate. A sub-side engagement portion is provided so as to protrude in a direction away from the sub fin along the surface of the main plate, and the sub heat exchange portion is adjacent to the main heat exchange portion on the main plate. Arrangement In a state of being, the main-side engagement portion to which the sub-side engagement portion is engaged in the laminating direction of the main fin is provided.

  According to such a heat exchanger, a sub-side engagement portion is provided in the sub-heat exchange portion, a main-side engagement portion is provided in the main heat exchange portion, and these are engaged so that a bolt or the like The sub heat exchange part can be attached to the main heat exchange part without using any fastener. Therefore, when attaching the sub heat exchanging part to the main heat exchanging part, the operator supports the sub heat exchanging part and the main heat exchanging part with the other hand while supporting the sub heat exchanging part with one hand. The work of fastening by does not occur. Further, the sub-side engaging portion is provided so as to protrude from the sub plate. For this reason, the length dimension of the main heat exchange part (dimension in the lamination direction of the main fins) is larger than the length dimension of the sub heat exchange part (dimensions in the lamination direction of the sub fins). Even in this case, it is possible to attach the sub heat exchanging portion to the main heat exchanging portion by engaging the sub side engaging portion with the main side engaging portion so as to ride on the main plate.

  Further, in the heat exchanger according to the second aspect of the present invention, the sub-side engaging portion in the first aspect is formed with a hole penetrating in the stacking direction, and the surface of the sub plate. The main side engaging portion may be a claw portion that protrudes from the main plate in the stacking direction and is inserted into the hole portion of the opening main body portion. .

  By inserting the claw portion of the main side engaging portion into the hole portion of the sub side engaging portion in this way, the sub side engaging portion and the main side engaging portion can be easily engaged, The sub heat exchange part can be easily attached to the main heat exchange part.

  In the heat exchanger according to the third aspect of the present invention, as the claw portion in the second aspect moves away from the side on which the sub heat exchange portion is disposed along the main plate, You may incline so that it may space apart from the said main fin in the lamination direction.

  Since the claw portion is provided in an inclined manner in this way, the surface of the claw portion of the main side engaging portion is slid when the sub side engaging portion and the main side engaging portion are engaged. The opening main body portion of the sub-side engaging portion moves, and the claw portion can be smoothly inserted into the hole portion. Further, since the claw portion is inclined, the claw portion inserted into the hole portion can be prevented from coming out of the hole portion, and the engagement between the sub-side engagement portion and the main-side engagement portion can be suppressed. The stop state can be maintained. Therefore, it can suppress that a sub heat exchange part falls out of a main heat exchange part.

  Further, in the heat exchanger according to the fourth aspect of the present invention, in the second or third aspect, the sub-side engaging portion is provided at a tip portion of the opening main body portion, and the sub-plate is used. A tip end inclined portion that inclines in a direction away from the sub fin in the stacking direction as it is separated from the sub fin along the direction may be provided.

  By providing the tip inclined portion in the sub-side engaging portion in this way, when the sub-side engaging portion and the main side engaging portion are engaged, the tip inclined portion is brought into contact with the claw portion, It is possible to smoothly guide the claw portion into the hole portion of the opening main body portion and insert the claw portion into the hole portion.

  In the heat exchanger according to the fifth aspect of the present invention, the sub-side engaging portion according to any one of the first to fourth aspects includes a stacking direction of the sub fins and the sub plate. A plurality of the heat exchangers may be provided apart from each other in the width direction of the sub heat exchange section that intersects with the direction away from the sub fin.

  Since the plurality of sub-side engaging portions are provided on the sub plate in this manner, the dimension in the width direction of each sub-side engaging portion can be reduced. For this reason, each sub-side engaging portion can be easily deformed, and can be easily engaged with the main-side engaging portion. Therefore, it becomes possible to attach the sub heat exchange part to the main heat exchange part more easily.

  An air conditioner according to a sixth aspect of the present invention includes the heat exchanger according to any one of the first to fifth aspects, and a housing that houses the heat exchanger therein. .

  According to such an air conditioner, the sub-side engaging portion of the sub-heat exchanging portion and the main-side engaging portion of the main heat exchanging portion are engaged with each other without using a fastener such as a bolt. The heat exchange part can be attached to the main heat exchange part. Even if the length dimension of the main heat exchange part (dimension in the stacking direction of the main fins) is larger than the length dimension of the sub heat exchange part (dimensions in the stacking direction of the sub fins) It is possible to attach the sub heat exchange portion to the main heat exchange portion by engaging the sub side engagement portion with the main side engagement portion so as to ride on the plate for use.

  Moreover, the manufacturing method of the heat exchanger according to the seventh aspect of the present invention includes: a sub fin in which a plurality of sub fins are stacked at intervals; a sub plate disposed on one end side in the stacking direction of the sub fins; And a sub heat exchange part having a sub pipe arranged so as to pass through the sub fins and the sub plate, a main fin in which a plurality are stacked at intervals, and a stacking direction of the main fins A main heat plate disposed on one end of the main plate, and a main heat exchange section having a main pipe disposed so as to pass through the main fin and the main plate. And forming the main heat exchanging part and the sub heat exchanging part individually, and arranging the main heat exchanging part so that the laminating direction is along the vertical direction and the one end side is located at the upper part. The main heat exchange arrangement step and the sub heat exchanging portion are arranged so that the stacking direction is along the vertical direction and the one end side is located at the top, and is arranged along the vertical direction. A lower end engaging step in which the lower end of the sub heat exchanging unit is engaged with a support provided at the lower end of the main heat exchanging unit, and a lower end engaging step After the step, the upper end proximity step of rotating the sub heat exchange portion with reference to the lower end portion of the main heat exchange portion and bringing the upper end portion of the sub heat exchange portion close to the upper end portion of the main heat exchange portion And a sub-side engagement provided on the sub plate so as to protrude in a direction away from the sub fin along the surface of the sub plate disposed on the upper end of the sub heat exchange unit. Part of the main heat Includes an upper end engaging step engaged with the main-side engaging portion provided in the main plate disposed in the upper part of the section, the.

  According to such a heat exchanger manufacturing method, when the worker attaches the sub heat exchange part to the main heat exchange part, the sub heat exchange is supported by the other hand while supporting the sub heat exchange part with one hand. The operation | work which installs a fastener in a main heat exchange part does not generate | occur | produce a part. Further, even if the length dimension of the main heat exchanging portion (dimension in the stacking direction of the main fin) is larger than the length dimension of the sub heat exchanging portion (dimension in the stacking direction of the sub fin). It is possible to attach the sub heat exchange part to the main heat exchange part by engaging the sub side engagement part with the main side engagement part so as to ride on the main plate.

  According to the above heat exchanger, air conditioner, and heat exchanger manufacturing method, the main heat exchange part and the sub heat exchange part are manufactured by engaging the sub-side engagement part and the main-side engagement part. Easy assembly regardless of dimensional errors.

1 is an external perspective view showing an air conditioner according to an embodiment of the present invention. It is a cross-sectional view which shows the air conditioner which concerns on embodiment of this invention, Comprising: The AA cross section of FIG. 1 is shown. It is a perspective view which shows the heat exchanger in the air conditioner which concerns on embodiment of this invention. It is a perspective view which shows the heat exchanger in the air conditioner which concerns on embodiment of this invention, Comprising: It is B arrow view of FIG. It is a flowchart which shows the process of manufacturing the heat exchanger in the air conditioner which concerns on embodiment of this invention. It is a side view which shows the process of manufacturing the heat exchanger in the air conditioner which concerns on embodiment of this invention, Comprising: (a) shows a lower end part engagement process, (b) shows an upper end part engagement process.

Hereinafter, the air conditioner 1 which concerns on embodiment of this invention is demonstrated.
The air conditioner 1 is an indoor unit provided in a room, and is an apparatus that sucks air A and adjusts temperature and humidity, then discharges air A and air-conditions the room.

As shown in FIG. 1 and FIG. 2, the air conditioner 1 includes a housing 2 that has a horizontally long rectangular parallelepiped shape in a horizontal direction during installation, and an air conditioner 20 that is accommodated in the housing 2. ing.
Here, in the following, the horizontal direction at the time of installation will be referred to as the left-right direction, the direction which will be the up-down direction at the time of installation will simply be the up-down direction, and the direction perpendicular to the left-right direction and the up-down direction will be referred to as the front-back direction. The front side is the front side during installation.

The housing 2 includes a front panel 11 disposed on the front side during installation, a housing body 10 that defines a space S in which the air conditioner 20 is housed together with the front panel 11, and a suction panel that covers the front panel 11 from the front. 12.
Further, a blow grill 13 that blows air A out of the space S is provided between the lower portion of the housing body 10 and the front panel 11. Further, a suction grill 14 for sucking air A into the space S is provided on the upper portion of the housing body 10.

  As the air conditioner 20, a heat exchanger 22 accommodated in the space S and a blower fan 21 provided in the space S so as to be surrounded by the heat exchanger 22 are provided. Although not shown in detail, the air conditioner 20 is provided with a filter 23 that allows the air A sucked from the suction grill 14 to pass therethrough.

  The blower fan 21 is a cross flow fan having a cylindrical shape extending in the left-right direction. The blower fan 21 is driven by a motor (not shown) provided in the housing body 10.

Next, the heat exchanger 22 will be described with reference to FIGS.
The heat exchanger 22 is disposed in the space S so as to surround the blower fan 21 from the outer peripheral side, and has a rectangular shape extending in the left-right direction.
As shown in FIG. 2, in the present embodiment, as the heat exchanger 22, a first heat exchanger 22 </ b> A provided in front of the blower fan 21 and a first heat exchange provided obliquely above the front of the blower fan 21. A second heat exchanger 22B connected to the heat exchanger 22A and a third heat exchanger 22C provided obliquely above the rear of the blower fan 21 and connected to the second heat exchanger 22B are provided.

  Since the first heat exchanger 22A, the second heat exchanger 22B, and the third heat exchanger 22C have the same structure, the third heat exchanger 22C will be described below as a representative.

  The third heat exchanger 22 </ b> C includes a main heat exchange unit 31 in which main fins 32 are stacked, and a sub heat exchange unit 41 attached to the main heat exchange unit 31.

  The main heat exchanging unit 31 includes a main fin 32 that is stacked in the left-right direction at intervals, a main plate 33 that is disposed on one end side in the stacking direction of the main fin 32, the main fin 32, The main pipe 34 is disposed so as to penetrate the main plate 33, and the sub heat exchange support section (support section) 38 is disposed on the other end side in the stacking direction of the main fins 32.

  A gap is formed between the main fins 32 adjacent to each other in the stacking direction, and the air A taken into the space S of the housing 2 from the suction grille 14 flows through the gap.

  The main plate 33 is disposed so as to further cover the surface of the main fin 32 disposed on the most end side in the left-right direction, which is the stacking direction of the main fins 32, from one end side.

A main side engaging portion 36 is provided on the surface of the main plate 33.
In the present embodiment, the main side engaging portion 36 is a claw portion 37 that protrudes further from the main plate 33 toward the one end side in the left-right direction.

  The claw portion 37 as the main-side engaging portion 36 is separated from the main fin 32 in the left-right direction (the stacking direction of the main fins 32) along the main plate 33 in the direction approaching the blower fan 21. The plate is inclined like this.

  The main pipe 34 is a pipe line through which a refrigerant from a refrigerant supply source (not shown) is introduced and circulated. Then, heat exchange is performed between the air A and the refrigerant through the main fins 32.

  As shown in FIGS. 5A and 5B, the sub heat exchange support portion 38 is further provided on the main fin 32 disposed on the other end side in the left-right direction, which is the stacking direction of the main fins 32. It is attached from the other end. The sub heat exchange support section 38 is a member that fixes the sub heat exchange section 41 to the main heat exchange section 31 when the sub heat exchange section 41 is attached to the main heat exchange section 31. Although details of the sub heat exchange support portion 38 are omitted, the sub heat exchange support portion 38 is formed of, for example, a resin or the like so that a claw or the like of the sub heat exchange support portion 38 to be described later is caught.

The sub heat exchanging portion 41 is disposed and fixed adjacent to the main heat exchanging portion 31 on the side away from the blower fan 21.
The sub heat exchanging portion 41 includes a plurality of sub fins 42 stacked in the left-right direction at intervals, a sub plate 43 disposed on one end side in the stacking direction of the sub fins 42, and a sub fin 42. And a sub pipe 44 disposed so as to penetrate the sub plate 43.

A gap is formed between the sub fins 42 adjacent to each other in the stacking direction, and the air A taken into the space S of the housing 2 from the suction grille 14 flows through the gap.
The stacking direction of the sub fins 42 and the stacking direction of the main fins 32 coincide with each other, and the air A that has passed between the sub fins 42 passes between the main fins 32 and the blower fan 21. Sent to.

  The sub plate 43 is disposed so as to further cover the surface of the sub fin 42 disposed on the most end side in the left-right direction, which is the stacking direction of the sub fins 42, from one end side. Thereby, the surface of the sub plate 43 is orthogonal to the stacking direction.

A sub-side engaging portion 46 is provided on the surface of the sub plate 43.
In the present embodiment, the sub-side engaging portion 46 is provided so as to protrude along the surface of the sub plate 43 in a direction toward the blower fan 21, which is a direction away from the sub fin 42. .

  More specifically, the sub-side engagement portion 46 is formed with a hole portion 47a penetrating in the left-right direction (the laminating direction of the sub-fins 42), and an opening body extending in parallel along the surface of the sub-plate 43 The tip 47 is provided continuously with the tip 47 of the opening 47 and the tip of the opening main body 47 and inclines in the direction away from the sub fin 42 in the left-right direction as it is separated from the sub fin 42 along the sub plate 43. And an inclined portion 48.

  The sub-side engaging portion 46 has the opening main body portion 47 overlapped in the stacking direction of the main fins 32 in a state in which the sub heat exchanging portion 41 is disposed adjacent to the main heat exchanging portion 31, and from the stacking direction. It is engaged with a claw portion 37 as the main side engaging portion 36. In the engaged state, the surface of the main plate 33 and the opening main body 47 are parallel to each other.

  Further, the sub-side engaging portion 46 extends in the width direction of the sub heat exchanging portion 41 that intersects the stacking direction of the sub fins 42 and the direction away from the sub fins 42 along the surface of the sub plate 43. That is, a plurality are provided apart from each other along the tangential direction of the outer peripheral surface of the blower fan 21.

  And the shape of the opening main-body part 47 in each sub side engaging part 46 may mutually differ, and is linearly formed like the sub side engaging part 46A of 22C of 3rd heat exchangers. Alternatively, like the sub-side engaging portion 46B of the second heat exchanger 22B, the second heat exchanger 22B may be formed to be curved or bent so as not to interfere with the main pipe 34.

  Although not shown in detail, the sub fin 42 is engaged with the sub heat exchange support portion 38 provided in the main heat exchanging portion 31 at the other end in the left-right direction, which is the stacking direction of the sub fins 42. A nail or the like is formed.

  Here, the first heat exchanger 22 </ b> A and the second heat exchanger 22 </ b> B are connected to each other by connecting the main plates 33 with the bolts 50. Similarly, the second heat exchanger 22 </ b> B and the third heat exchanger 22 </ b> C are connected to each other by connecting the main plates 33 with the bolts 50.

  In the present embodiment, the first heat exchanger 22 </ b> A is not formed with the main-side engaging portion 36 and the sub-side engaging portion 46, and is simply replaced with the main heat exchanging portion 31 by the bolt 51. Part 41 is attached. However, similarly to the second heat exchanger 22B and the third heat exchanger 22C, the first heat exchanger 22A may have a main side engaging portion 36 and a sub side engaging portion 46 formed therein. .

Next, the manufacturing method of the heat exchanger 22 is demonstrated with reference to FIG.5 and FIG.6.
In this manufacturing method, the second heat exchanger 22B and the third heat exchanger 22C are targeted.
The manufacturing method of the heat exchanger 22 includes a forming step S1 for forming the main heat exchanging portion 31 and the sub heat exchanging portion 41, a main heat exchanging step S2 for disposing the main heat exchanging portion 31 at a predetermined position, and a main heat exchanging step. A lower end engaging step S3, an upper end approaching step S4, and an upper end engaging step S5 for bringing the part 31 and the sub heat exchanging part 41 close to each other.

First, the forming step S1 is performed. In formation process S1, the main heat exchange part 31 and the sub heat exchange part 41 are each formed separately. When the main heat exchanging portion 31 is formed, the main fins 32 are stacked, and the main plate 33 is disposed on one end side of the stacked main fins 32 in the stacking direction. Thereafter, the main pipe 34 is arranged so that the main pipe 34 passes through the main fin 32 and the main pipe 34. The same applies to the sub heat exchange unit 41.
In the formation step S <b> 1, the sub heat exchange support portion 38 is attached to the main heat exchanging portion 31 on the other end side in the stacking direction of the main fins 32.

Next, main heat exchange arrangement | positioning process S2 is performed. In the main heat exchange arrangement step S2, the main heat exchanging portion 31 is arranged so that the lamination direction of the main plates 33 is along the vertical direction, and one end side in the lamination direction is located at the top.
In addition, the up-down direction used when explaining this manufacturing method is a direction which corresponds to the left-right direction at the time of installation, and is different from the up-down direction after installation mentioned above.

  Furthermore, as shown to Fig.5 (a), lower end part engagement process S3 is performed. In the lower end engaging step S3, the sub heat exchanging portion 41 is arranged so that the stacking direction of the sub fins 42 is along the vertical direction, and one end side in the stacking direction is located at the top. In addition, the sub heat exchanging portion 41 is brought close to the main heat exchanging portion 31 arranged along the vertical direction from the front, and the sub heat exchange support portion 38 provided at the lower end portion of the main heat exchanging portion 31 The nail | claw etc. (not shown) formed in the lower end part of the heat exchange part 41 are engaged.

  And upper end part proximity | contact process S4 is performed. In the upper end proximity step S4, the sub heat exchange unit 41 is rotated with the lower end of the main heat exchange unit 31 as a reference, and the upper end of the sub heat exchange unit 41 is brought close to the upper end of the main heat exchange unit 31 (FIG. (See arrow 5 (a)).

  Finally, as shown in FIG. 5B, the upper end engagement step S5 is executed. In the upper end portion engaging step S5, the sub-side engaging portion 46 disposed on the upper end portion of the sub heat exchanging portion 41 is engaged with the main side engaging portion 36 disposed on the upper end portion of the main heat exchanging portion 31. Thus, the heat exchanger 22 is manufactured.

  Finally, the first heat exchanger 22A, the second heat exchanger 22B and the third heat exchanger 22C manufactured by the above-described manufacturing method are connected by the bolt 50, and the housing 2 is filled. The air conditioner 1 is manufactured by performing the process of incorporating.

  According to the air conditioner 1 of the present embodiment described above, the sub-side engaging portion 46 is provided in the sub-heat exchanging portion 41 of the heat exchanger 22, and the main-side engaging portion 36 is provided in the main heat exchanging portion 31. Are provided to engage with each other. For this reason, the sub heat exchange part 41 can be attached to the main heat exchange part 31 without using fasteners, such as a volt | bolt.

  Therefore, when the worker attaches the sub heat exchange unit 41 to the main heat exchange unit 31, the sub heat exchange unit 41 and the main heat exchange unit are supported by the other hand while supporting the sub heat exchange unit 41 with one hand. The operation | work which fastens 31 with fasteners, such as a volt | bolt, does not generate | occur | produce.

  Further, due to manufacturing dimensional errors, the length dimension of the main heat exchange section 31 (dimension in the stacking direction of the main fins 32) is longer than the length dimension of the sub heat exchange section 41 (dimension in the stacking direction of the sub fins 42). ) May be larger. Even in such a case, since the sub-side engaging portion 46 is provided so as to protrude from the sub-plate 43, the sub-side engaging portion 46 is laid on the main plate 33 so that the main-side engaging portion 46 The sub heat exchanging part 41 can be attached to the main heat exchanging part 31 by engaging with the main heat exchanging part 36.

  Therefore, it is possible to easily assemble and manufacture the heat exchanger 22 regardless of manufacturing dimensional errors of the main heat exchanging portion 31 and the sub heat exchanging portion 41.

  Further, since the claw portion 37 of the main side engaging portion 36 is inserted into the hole 47a of the sub side engaging portion 46, the sub side engaging portion 46, the main side engaging portion 36, Can be easily engaged, and the heat exchanger 22 can be manufactured by attaching the sub heat exchanger 41 to the main heat exchanger 31 more easily.

  Further, since the claw portion 37 as the main side engaging portion 36 is provided to be inclined, the surface of the claw portion 37 is engaged when the sub side engaging portion 46 and the main side engaging portion 36 are engaged. The opening main body portion 47 of the sub-side engaging portion 46 moves so that the claw portion 37 can be smoothly inserted into the hole portion 47a.

  In addition, since the claw portion 37 is inclined, the claw portion 37 inserted into the hole portion 47a can be prevented from coming out of the hole portion 47a. The locked state with the joint portion 36 can be maintained. Therefore, it is possible to prevent the sub heat exchange unit 41 from dropping from the main heat exchange unit 31.

  Further, when the sub-side engaging portion 46 is provided with the tip inclined portion 48 that is continuous with the opening main body portion 47, when the sub-side engaging portion 46 and the main-side engaging portion 36 are engaged, The claw portion 37 can be smoothly guided to the hole portion 47a while the tip inclined portion 48 is in contact with the claw portion 37, and the claw portion 37 can be inserted into the hole portion 47a.

  Further, since the plurality of sub-side engaging portions 46 are provided on the sub plate 43, the dimension in the width direction of each sub-side engaging portion 46 can be reduced. For this reason, each sub-side engaging portion 46 can be easily deformed, and can be easily engaged with the main-side engaging portion 36. Therefore, the sub heat exchange part 41 can be attached to the main heat exchange part 31 more easily.

  Further, since the plurality of sub-side engaging portions 46 can be formed by cutting out the end surface of the sub-plate 43, the sub-side engaging portions 46 are provided without attaching another member to the sub-plate 43. be able to. That is, the sub-side engagement portion 46 can be easily provided while reducing costs.

Although the embodiment of the present invention has been described in detail above, some design changes can be made without departing from the technical idea of the present invention.
The sub-side engaging portion 46 and the main-side engaging portion 36 do not have to have a structure in which the claw portion 37 and the hole portion 47a are engaged with each other, for example, a structure in which a convex portion and a hole portion engage with each other. Also good. That is, at least one of the sub-side engaging portion 46 and the main-side engaging portion 36 may be formed with a convex portion, and the other may be formed with a hole.

  Further, the claw portion 37 as the main side engaging portion 36 does not necessarily have to be inclined, and the sub side engaging portion 46 does not have to have the tip inclined portion 48.

DESCRIPTION OF SYMBOLS 1 ... Air conditioner 2 ... Housing 10 ... Housing main body 11 ... Front panel 12 ... Suction panel 13 ... Blowing grill 14 ... Suction grill 20 ... Air conditioning equipment 21 ... Blower fan 22 ... Heat exchanger 22A ... First heat exchanger 22B ... Second heat exchanger 22C ... Third heat exchanger 23 ... Filter 31 ... Main heat exchange part 32 ... Main fin 33 ... Main plate 34 ... Main pipe 36 ... Main side engaging part 37 ... Claw part 38 ... Sub heat exchange support part (support part) 41 ... Sub heat exchange part 42 ... Sub fin 43 ... Sub plate 44 ... Sub pipe 46, 46A, 46B ... Sub side engagement part 47 ... Opening body part 47a ... Hole 48: Tip inclined portion 50: Bolt S1: Formation process S2: Main heat exchange arrangement process S3: Lower end engagement process S4: Upper end proximity process S5: Upper end engagement Degree A ... air S ... space

Claims (7)

A plurality of sub-fins stacked at intervals, a sub-plate disposed on one end side in the stacking direction of the sub-fins, and the sub-fins and the sub-plates. A sub heat exchange section having a sub pipe;
A plurality of main fins that are stacked at intervals, a main plate that is disposed on one end side in the stacking direction of the main fins, and a main fin and a main plate that are disposed through the main fin. A main heat exchange section having a main pipe;
With
A sub-side engagement portion is provided on the sub plate so as to protrude in a direction away from the sub fin along the surface of the sub plate.
In the main plate, the sub-side engaging portion engages from the stacking direction of the main fins in a state where the sub-heat exchanging portion is disposed adjacent to the main heat exchanging portion. Heat exchanger with a section. The sub-side engagement portion has an opening main body portion formed along the surface of the sub-plate while a hole portion penetrating in the stacking direction is formed.
2. The heat exchanger according to claim 1, wherein the main side engaging portion is a claw portion that protrudes from the main plate in the stacking direction and is inserted into a hole portion of the opening main body portion.   The said claw part is inclined so that it may space apart from the said main fin in the said lamination direction as it separates from the side by which the said sub heat exchange part is arrange | positioned along the said main plate. Heat exchanger.   The sub-side engaging portion is provided at a distal end portion of the opening main body, and is inclined in a direction away from the sub-fin in the stacking direction as the sub-side engaging portion is separated from the sub-fin along the sub-plate. The heat exchanger according to claim 2 or 3, further comprising a tip inclined portion.   The sub-side engaging portions are separated from each other in the stacking direction of the sub-fins and in the width direction of the sub-heat exchange portion that intersects the sub-plate fins along the surface of the sub-plate. The heat exchanger according to any one of claims 1 to 4, wherein a plurality of the heat exchangers are provided. A heat exchanger according to any one of claims 1 to 5;
A housing that houses the heat exchanger;
Air conditioner equipped with. A plurality of sub-fins stacked at intervals, a sub-plate disposed on one end side in the stacking direction of the sub-fins, and the sub-fins and the sub-plates. A sub heat exchanging portion having a sub pipe, a plurality of main fins stacked at intervals, a main plate disposed on one end side in the stacking direction of the main fins, and the main fin and main A main heat exchanging part having a main pipe arranged so as to penetrate the plate for heat, and a manufacturing method of a heat exchanger comprising:
Forming the main heat exchanging part and the sub heat exchanging part individually;
A main heat exchanging step of arranging the main heat exchanging portion so that the laminating direction is along the up-down direction and the one end side is located at the top;
The sub heat exchange part is arranged so that the stacking direction is along the vertical direction and the one end side is located at the upper part, and is brought close to the main heat exchange part arranged along the vertical direction from the front. A lower end engaging step of engaging the lower end of the sub heat exchanging portion with a support provided at the lower end of the main heat exchanging portion;
After the lower end engaging step, the sub heat exchanging portion is rotated with reference to the lower end portion of the main heat exchanging portion, and the upper end portion of the sub heat exchanging portion is brought close to the upper end portion of the main heat exchanging portion. An upper end proximity process;
A sub-side engagement portion provided on the sub plate so as to protrude in a direction away from the sub fin along the surface of the sub plate disposed on the upper end portion of the sub heat exchange portion. An upper end portion engaging step for engaging with a main side engaging portion provided on the main plate disposed on the upper end portion in the main heat exchanging portion;
The manufacturing method of the heat exchanger containing this.

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