JP2003302124A - Heat exchanger with receiver tank, receiver tank assembly structure of heat exchanger, method for assembling the same, and refrigerating system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat exchanger with a receiver tank for easily and reliably assembling the receiver tank while simplifying a structure and reducing cost. <P>SOLUTION: A bracket 5 has a cylindrical externally-fitting part 51 for externally fitting a lower end 31 of the receiver tank to a tank joining part 41 of a flange 4. Projections 35 and 45 are provided on an outer circumferential surface of the lower end of the receiver tank and an outer circumferential surface of the tank joining part, and L-shaped notched parts 55 and 56 having longitudinal grooves 55a and 56a and transverse grooves 55b and 56b are formed in upper and lower ends of the bracket outer-fitting part 51. The lower end 31 of the receiver tank and the tank joining part 41 are inserted in the outer-fitting part 51 in the vertical direction and joined therewith so that the projections 35 and 45 are inserted in the longitudinal grooves 55a and 56a from upper and lower sides. The bracket 5 is turned in this condition, the projections 35 and 45 are inserted in the transverse grooves 55b and 56b, and the lower end 31 of the receiver tank is held by the tank joining part 41 in a joined manner. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchanger with a receiver tank, which is suitable for use in, for example, a vehicle air conditioner, a receiver tank assembling structure for a heat exchanger, an assembling method therefor, and a refrigeration system.

[0002]

2. Description of the Related Art In recent years, in the process of condensing a refrigerant in a refrigerating cycle of an air conditioner for a vehicle or the like, the condensed refrigerant is supercooled to a temperature lower by several degrees to increase the amount of heat radiation, and then the pressure reducing means. , A technique to guide the evaporator to improve the refrigerating capacity has been proposed.

In this proposed technique, development of a heat exchanger with a receiver tank (subcool system condenser) in which a receiver tank is assembled to a heat exchanger having a condensing portion and a supercooling portion as one body is under way.

As shown in FIG. 8, this heat exchanger with a receiver tank has a pair of headers (101) (101).
The heat exchanger main body (100) is formed by arranging in parallel a number of heat exchange tubes whose both ends are connected for communication.
Furthermore, a partition member (10) provided in the header (101)
According to 2), the heat exchange tube has multiple paths (P1) to
(P5) and the paths (P1) to (P1)
The condensing part (110) is constituted by 3), and the pass (P4)
By (P5), a supercooling unit (120) independent of the condensing unit (110) is formed.

The condenser (11) in the header (101)
0) is provided with a condenser inlet (111) and a condenser outlet (112) at upper and lower positions, and a supercooling portion inlet (111) is provided at a vertical position of the supercooling portion (120) in one header (101). 121) and the supercooling section outlet (12
2) has been formed.

A coupling member such as a block flange (140) is fixedly joined to the header (101) at a position corresponding to the condenser outlet (112) and the subcooler inlet (121).

The receiver tank (130) has an inlet (131) and an outlet (132) at its lower end,
This lower end is joined and fixed to the block flange (140).

The condenser outlet (111) is connected to the receiver tank inlet (131) through the internal inflow passage (141) of the block flange (140), and the receiver tank outlet (132) is blocked. It is communicatively connected to the supercooling section inlet (121) through the internal outflow passage (142) of the flange (140).

In this heat exchanger with a receiver tank, the gas refrigerant flowing from the condenser inlet (111) into the condenser (110) is passed through each path (P1) of the condenser (110).
Through (P3) in order, heat is exchanged with the outside air and condensed. Furthermore, the condensed refrigerant is condensed at the outlet (1
12), inflow path (141) and receiver tank inlet (1
31) through the receiver tank (130)
Then, once stored, only the liquid refrigerant is supplied to the receiver tank outlet (132), the outflow passage (142) and the supercooling unit inlet (1
21) and is led to the subcooling part (120). Further, the liquid refrigerant that has flowed into the subcooling unit (120) is the fourth and fifth liquid refrigerant.
While flowing through the paths (P4) and (P5), it is supercooled by outside air and then flows out from the supercooling section outlet (122).

In such a heat exchanger integrated with a receiver tank, a method of assembling the receiver tank (130) to the block flange (140) is, for example, a screw (not shown) from below the block flange (140).
A method of joining and fixing the receiver tank (140) to the block flange (140) by penetrating through and fastening and fixing to the lower wall of the receiver tank.

In addition to this assembling method, for example, in Japanese Unexamined Patent Publication No. 11-212175, a male screw is engraved on the outer periphery of the lower end of the receiver tank (130) and the tank flange of the block flange (140) is joined to the tank. Female screws are engraved on the inner peripheral surface of the receiver tank (13
The method of screwing the lower end of 0) to the block flange (140) and joining and fixing is disclosed.

[0012]

However, in the above-mentioned conventional heat exchanger with a receiver tank, the receiver tank (130) is joined and fixed to the block flange (140) by a screw operation, which is troublesome. There is a problem that it is difficult to assemble the receiver tank due to the need for various screwing work.

When a screw or the like is additionally used, the number of parts is increased, resulting in a complicated structure and an increase in cost, and in the case of directly threading the lower end of the receiver tank, the number of processing steps is increased. However, there arises a problem that the structure is complicated and the cost is increased.

The present invention solves the above-mentioned problems of the prior art, simplifies the structure, and reduces the cost, and at the same time, the heat exchanger with the receiver tank and the heat exchanger with which the receiver tank can be assembled easily and surely. TECHNICAL FIELD The present invention relates to a receiver tank assembly structure, an assembly method thereof, and a refrigeration system.

[0015]

In order to achieve the above object, a heat exchanger with a receiver tank according to the first aspect of the present invention includes a heat exchanger main body in which a plurality of heat exchange paths are arranged in parallel between a pair of headers. , A receiver tank arranged along one header, and a tank joining part for joining the lower end of the receiver tank, a joining member joined and fixed to the one header, the receiver tank lower end and the A bracket having an outer fitting portion capable of fitting the tank joint portion to the outer periphery, and a bracket for supporting and fixing the receiver tank to a peripheral member, and an operation of inserting the receiver tank lower end and the tank joint portion into the outer fitting portion is allowed. While in the insertion state,
Based on an operation of rotating the bracket about the axis with respect to the receiver tank and the coupling member, a connecting means for suppressing the lower end of the receiver tank and the tank joining portion in a direction of joining each other is summarized. .

In the heat exchanger with a receiver tank according to the first aspect of the present invention, the lower end of the receiver tank is rotated by rotating the bracket with the lower end of the receiver tank and the tank joint portion of the connecting member inserted in the outer fitting portion of the bracket. Also, the tank joining portion of the joining member is joined in a suppressed state. Therefore, the receiver tank can be easily and surely assembled to the connecting member.

Furthermore, screws, bolts, etc. can be omitted, and further thread cutting processing, etc. can be omitted.
It is possible to simplify the structure and reduce the cost.

Moreover, since the bracket for supporting and fixing to the vehicle body or the like is also used as a member for joining the receiver tank and the connecting member, the number of parts can be further reduced by using the members in combination and further. It is possible to simplify the structure and reduce the cost.

The heat exchanger with a receiver tank according to the second aspect of the present invention comprises a heat exchanger body in which a plurality of heat exchange paths are arranged in parallel between a pair of headers, and a receiver tank arranged along one of the headers. A joining member that has a tank joining portion for joining the lower end of the receiver tank, and is joined and fixed to the one header, and a tubular outer fitting capable of fitting the lower end of the receiver tank and the tank joining portion to each other. And a bracket having a support piece provided at the outer fitting portion and having a tip attached to a peripheral member, the outer peripheral surface of the lower end of the receiver tank is provided with a tank-side projection protruding outward, An outer peripheral surface of the tank joint portion is provided with a coupling member-side protrusion protruding outward, and an outer fitting portion of the bracket has an upper end opening to an upper end edge of the outer fitting portion,
And a tank connecting notch having a vertical groove extending downward along the axis and a lateral groove having one end communicating with the vertical groove and extending in the circumferential direction is provided, and the outer fitting portion of the bracket has a lower end. A coupling member connecting notch having a vertical groove that opens at the lower end edge of the outer fitting portion and extends upward along the axis, and a lateral groove that has one end communicating with the vertical groove and that extends in the circumferential direction. The receiver tank lower end and the tank are provided in a manner that the tank-side projection and the coupling member-side projection are inserted into the respective vertical grooves of the tank coupling notch and the coupling member coupling notch from the upper and lower sides thereof. The joint portion is inserted into the outer fitting portion from both upper and lower sides thereof and joined to each other, and in this state, the bracket is rotated around the axis with respect to the receiver tank and the coupling member, and the tank-side projection and The joint member side protrusion is inserted into each of the lateral grooves of the tank connecting notch and the connecting member connecting notch so that the lower end of the receiver tank is held in a joined state at the tank joint. I am trying.

In the heat exchanger with receiver tank according to the second aspect of the present invention, protrusions are provided on the outer periphery of the lower end of the receiver tank and the outer periphery of the tank joint portion, and L-shaped notches are formed at the upper and lower ends of the outer fitting portion of the bracket. By inserting each projection into the vertical groove of the L-shaped notch and engaging with the horizontal groove, the lower end of the receiver tank is joined in pressure contact with the tank joint, so it is even easier to use the receiver tank as a coupling member. And it can be assembled securely.

The heat exchanger with a receiver tank according to the third aspect of the present invention includes a heat exchanger body in which a plurality of heat exchange paths are arranged in parallel between a pair of headers, and a receiver tank arranged along one of the headers. A joining member that has a tank joining portion for joining the lower end of the receiver tank, and is joined and fixed to the one header, and a tubular outer fitting capable of fitting the lower end of the receiver tank and the tank joining portion to each other. And a bracket having a support piece provided at the outer fitting portion and having a tip end attached to a peripheral member, the outer peripheral surface of the lower end of the receiver tank is provided with an outward flange protruding outward, An outwardly projecting coupling member side projection is provided on the outer peripheral surface of the tank joint portion, and an inwardly projecting inward flange is provided at the upper end of the inner peripheral surface of the outer fitting portion of the bracket. In addition, the outer fitting portion of the bracket has a vertical groove whose lower end opens at the lower end edge of the outer fitting portion and extends upward along the axial center, and one end communicates with the vertical groove, and which extends in the circumferential direction. A coupling member connecting notch having an extending lateral groove is provided, the receiver tank lower end is inserted and arranged in the outer fitting portion, and the outward flange is engaged with the lower surface side of the inward flange. In the aspect in which the coupling member side projection is inserted into the vertical groove of the coupling member connecting cutout portion from below, the tank joining portion is inserted into the outer fitting portion from below, whereby the receiver tank The lower end and the tank joining portion are joined to each other, and in this state, the bracket is rotated around the axis with respect to the joining member, and the joining member side projection is inserted into the lateral groove of the joining member connecting cutout portion. To be Ri, is summarized as that the receiver tank bottom is held in the joined state to the tank junction.

In the heat exchanger with a receiver tank according to the third aspect of the present invention, an outward flange is provided on the outer periphery of the lower end of the receiver tank, an inward flange is provided on the upper end of the outer fitting portion of the bracket, and a projection is provided on the outer periphery of the tank joint portion. And the L-shaped notch is formed at the lower end of the outer fitting portion, and the protrusion on the coupling member side is inserted into the vertical groove of the L-shaped notch with the outward flange engaged with the lower surface of the inward flange. Since the lower end of the receiver tank is pressure-welded to the tank joint by engaging with the lateral groove, the receiver tank can be more easily and surely assembled to the joint member, as in the second aspect of the invention. You can

In the second or third aspect of the invention, it can be suitably used for a so-called subcool system capacitor having a supercooling section.

That is, in the present invention, the plurality of heat exchange passages in the heat exchanger body are partitioned into a condensing section and a subcooling section which are independent of each other, and the refrigerant condensed by the condensing section flows in the coupling member. A liquid refrigerant of the stored refrigerant is introduced into the receiver tank to be stored therein, and a liquid refrigerant of the stored refrigerant is introduced into the supercooling section to be supercooled. Is preferred.

Further, in the present invention, the plurality of heat exchange passages in the condensing portion of the heat exchanger main body are partitioned into a plurality of paths so that the refrigerant flows in a meandering manner in the respective paths in order. It is good to adopt.

That is, in this case, the refrigerant can be efficiently and smoothly condensed in the condenser portion, and the heat exchange performance can be improved.

Further, in the present invention, it is desirable that the bracket is formed by an integrally molded product in which the support piece is integrally formed on the outer fitting portion.

That is, when this structure is adopted, the rigidity of the bracket itself can be increased, the assembly strength of the receiver tank can be improved, and the bracket can be manufactured in one piece, so that the number of members can be reduced. Therefore, the structure can be further simplified and the cost can be reduced.

In the present invention, the bracket is formed of an extruded product of aluminum or its alloy, or the bracket is formed of a forged product of aluminum or its alloy. Is more preferable.

That is, when this structure is adopted, the bracket can be efficiently and reliably manufactured as an integrally formed product.

Further, in the present invention, since the bracket can be manufactured by an integrally molded product having high rigidity, it is not necessary to join the bracket to the header, and accordingly, the bracket assembling work can be easily performed. it can.

That is, in the present invention, it is possible to preferably employ a structure in which the bracket is arranged in a non-fixed state with respect to the header.

Further, in the present invention, a plurality of the tank-side protrusions and the coupling member-side protrusions are provided at intervals in the circumferential direction, and the tank connecting notch and the coupling member connecting notch are It is more desirable to employ a configuration in which a plurality of tank-side protrusions and coupling member-side protrusions are provided.

That is, when this structure is adopted, the lower end of the receiver tank can be evenly and circumferentially joined to the tank joining portion of the joining member in a circumferential direction, and the receiver tank can be assembled to the joining member in a more stable state. You can

In particular, in the present invention, it is more preferable to employ a structure in which the tank-side projection and the coupling-member-side projection are provided two by two at positions shifted in phase by 180 ° in the circumferential direction. desirable.

That is, when this structure is adopted, the receiver tank can be reliably assembled to the coupling member in a stable state without complicating the structure.

Further, in the present invention, a plurality of the coupling member side projections are provided at intervals in the circumferential direction, and
It is even more preferable to employ a configuration in which a plurality of the connecting member connecting cutouts are provided corresponding to the connecting member side projections.

That is, when this structure is adopted, similarly to the above, the lower end of the receiver tank can be evenly and circumferentially joined to the tank joining portion in a well-balanced manner, and the receiver tank can be assembled to the joining member in a more stable state. You can

In particular, in the present invention, it is more preferable to employ a structure in which two coupling member side projections are provided at positions shifted in phase by 180 ° in the circumferential direction.

That is, when this structure is adopted, the receiver tank can be securely assembled to the coupling member in a stable state without complicating the structure.

Further, in the present invention, it is more preferable to employ a structure in which the outward flange and the inward flange are continuously formed in the circumferential direction.

That is, when this structure is adopted, the receiver tank can be assembled to the coupling member in a more stable state.

The fourth aspect of the present invention specifies a receiver tank assembling structure of a heat exchanger using the heat exchanger with a receiver tank of the first aspect.

That is, according to the fourth aspect of the present invention, the heat exchanger body has a plurality of heat exchange paths arranged in parallel between a pair of headers.
A receiver tank assembly structure of a heat exchanger for assembling the receiver tank along one header,
It has a tank joining portion for joining the lower end of the receiver tank, and has a joining member joined and fixed to the one header, and an outer fitting portion that can fit the lower end of the receiver tank and the tank joining portion. A bracket for supporting and fixing the receiver tank to a peripheral member, and an operation of inserting the receiver tank lower end and the tank joint portion into the outer fitting portion, while allowing the bracket to hold the receiver tank in the inserted state. And a connecting means for suppressing the receiver tank lower end and the tank joint portion in a direction in which the receiver tank lower end and the tank joint portion are joined to each other based on an operation of rotating the joint member about an axis, and the receiver tank lower end and the tank joint portion are The gist is that they are joined and fixed to each other by the connecting means in a state of being fitted in the outer fitting portion. .

The fourth invention is similar to the first invention,
The same effect is obtained.

The fifth aspect of the present invention specifies a receiver tank assembling structure of a heat exchanger using the heat exchanger with a receiver tank of the second aspect.

That is, the fifth aspect of the present invention is the heat exchanger body in which a plurality of heat exchange paths are arranged in parallel between a pair of headers.
A receiver tank assembly structure of a heat exchanger for assembling the receiver tank along one header,
A joining member that has a tank joining portion for joining the lower end of the receiver tank, and is joined and fixed to the one header, and a cylindrical outer fitting portion that can fit the lower end of the receiver tank and the tank joining portion. And a bracket having a support piece provided on the outer fitting portion and having a tip end attached to a peripheral member, the outer peripheral surface of the lower end of the receiver tank is provided with a tank-side projection protruding outward, and A coupling member-side protrusion protruding outward is provided on the outer peripheral surface of the tank joint portion, and the outer fitting portion of the bracket has an upper end opening to an upper end edge of the outer fitting portion and downward along an axis. A tank connecting notch having a vertical groove extending and a lateral groove having one end communicating with the vertical groove and extending in the circumferential direction is provided, and a lower end of the outer fitting portion of the bracket is a lower end of the outer fitting portion. A coupling member connecting cutout having a vertical groove that is open to the upper side and extends upward along the axis, and a lateral groove that has one end communicating with the vertical groove and that extends in the circumferential direction. In a mode in which the coupling member-side projection is inserted into the respective vertical grooves of the tank coupling notch and the coupling member coupling notch from the upper and lower sides thereof, the receiver tank lower end and the tank joint are provided on the outer fitting portion. The brackets are inserted from both upper and lower sides and joined to each other, and in this state, the bracket is rotated around the axis with respect to the receiver tank and the coupling member, and the tank-side protrusion and the coupling member-side protrusion are connected to the tank. By being inserted into each of the lateral grooves of the notch and the coupling member connecting notch,
The gist is that the lower end of the receiver tank is held in a joined state by the tank joining portion.

The fifth invention is similar to the second invention,
The same effect is obtained.

The sixth aspect of the present invention specifies a receiver tank assembly structure of a heat exchanger using the heat exchanger with a receiver tank of the third aspect.

That is, according to the sixth aspect of the present invention, the heat exchanger body has a plurality of heat exchange paths arranged in parallel between a pair of headers.
A receiver tank assembly structure of a heat exchanger for assembling the receiver tank along one header,
A joining member that has a tank joining portion for joining the lower end of the receiver tank, and is joined and fixed to the one header, and a cylindrical outer fitting portion that can fit the lower end of the receiver tank and the tank joining portion. And a bracket having a supporting piece provided at an outer fitting portion and having a tip end attached to a peripheral member, the outer peripheral surface of the lower end of the receiver tank is provided with an outward flange protruding outward, and A coupling member side protrusion that projects outward is provided on the outer peripheral surface of the tank joining portion, and an inward flange that projects inward is provided at the upper end of the inner peripheral surface of the outer fitting portion of the bracket, and in the bracket. The outer fitting portion has a vertical groove whose lower end opens to a lower end edge of the outer fitting portion and extends upward along the axis, and a lateral groove which has one end communicating with the vertical groove and extending in the circumferential direction. Notch for coupling members coupling is provided,
With the lower end of the receiver tank inserted into the outer fitting portion and the outward flange is engaged with the lower surface side of the inward flange, the coupling member side projection is a vertical portion of the coupling member connecting cutout portion. In the aspect of being inserted from the lower side into the groove, by inserting the tank joint portion from the lower side to the outer fitting portion, the receiver tank lower end and the tank joint portion are joined to each other, in that state, The bracket is rotated around the axis with respect to the coupling member, and the coupling member side projection is inserted into the lateral groove of the coupling member connecting cutout portion, whereby the receiver tank lower end is joined to the tank joint portion. What is held in a state is the gist.

The sixth invention is similar to the third invention,
The same effect is obtained.

The seventh aspect of the present invention specifies a method of assembling a receiver tank of a heat exchanger using the heat exchanger with a receiver tank of the first aspect.

That is, the seventh aspect of the present invention is a heat exchanger body in which a plurality of heat exchange paths are arranged in parallel between a pair of headers.
A method for assembling a receiver tank of a heat exchanger for assembling a receiver tank along one header,
A step of preparing a joining member having a tank joining portion for joining the lower end of the receiver tank, and an outer fitting portion capable of fitting the lower end of the receiver tank and the tank joining portion to each other, and the receiver tank being a peripheral member. In a step of preparing a bracket for supporting and fixing to the receiver tank and an operation of inserting the receiver tank lower end and the tank joint portion into the outer fitting portion, in the inserted state, the bracket is fixed to the receiver tank and the coupling. A step of preparing a connecting means for suppressing the lower end of the receiver tank and the tank joint part in a direction in which the lower end of the receiver tank and the tank joint part are joined to each other based on an operation of rotating the member about an axis; And the lower end of the receiver tank and the tank joint portion are fitted in the outer fitting portion, the coupling is performed. It is summarized as to include a step of joining secured together by stage.

The seventh invention is similar to the first invention,
The same effect is obtained.

The eighth aspect of the present invention specifies a method of assembling a receiver tank of a heat exchanger using the heat exchanger with a receiver tank of the second aspect.

That is, the eighth aspect of the present invention provides a heat exchanger body in which a plurality of heat exchange paths are arranged in parallel between a pair of headers.
A method for assembling a receiver tank of a heat exchanger for assembling a receiver tank along one header,
As the receiver tank, a step of preparing an outer peripheral surface of a lower end thereof provided with a tank-side protrusion projecting outward, and a tank joining portion for joining the lower end of the receiver tank, and the tank joining A step of preparing a coupling member provided with a coupling member side protrusion projecting outwardly on the outer peripheral surface of the portion, and a cylindrical outer fitting portion capable of fitting the lower end of the receiver tank and the tank joining portion, A bracket having a support piece provided at an outer fitting portion and having a tip attached to a peripheral member, wherein the upper end of the outer fitting portion is opened at an upper end edge of the outer fitting portion and extends along an axis. Is provided with a vertical groove extending downward and a lateral groove extending in the circumferential direction and having one end communicating with the vertical groove, and a lower end of the outer fitting portion having a lower end at the outer fitting portion. Open at the bottom edge of the And a vertical groove extending upward, and a step of preparing a bracket provided with a notch for connecting member connection, which includes a lateral groove extending in the circumferential direction and having one end communicating with the vertical groove, and The step of joining and fixing to the header of, and the aspect in which the tank-side projection and the coupling member-side projection are inserted into the respective vertical grooves of the tank coupling notch and the coupling member coupling notch from the upper and lower sides thereof, The tank lower end and the tank joint portion are inserted into the outer fitting portion from both upper and lower sides thereof and joined to each other, and in that state, the bracket is rotated about the axis with respect to the receiver tank and the coupling member, By inserting the tank-side protrusion and the coupling member-side protrusion into the respective lateral grooves of the tank coupling notch and the coupling member coupling notch, the lower end of the receiver tank is closed. It is a good thing and a step of holding the joined state the joint.

The eighth invention is similar to the second invention,
The same effect is obtained.

The ninth aspect of the present invention specifies a method of assembling a receiver tank of a heat exchanger using the heat exchanger with a receiver tank of the third aspect.

That is, the ninth aspect of the present invention provides a heat exchanger body in which a plurality of heat exchange paths are arranged in parallel between a pair of headers.
A method for assembling a receiver tank of a heat exchanger for assembling a receiver tank along one header,
As the receiver tank, on the outer peripheral surface of the lower end thereof, a step of preparing an outwardly projecting flange is provided, and a tank joining portion for joining the lower end of the receiver tank is provided. A step of preparing a coupling member provided with a coupling member side protrusion projecting outwardly on the outer peripheral surface of the portion, and a cylindrical outer fitting portion capable of fitting the lower end of the receiver tank and the tank joining portion, A bracket having a support piece provided on an outer fitting portion and having a tip end attached to a peripheral member, wherein an inward flange protruding inward is provided at an upper end of an inner peripheral surface of the outer fitting portion, and A lower end of the fitting portion includes a vertical groove whose lower end opens to the lower end edge of the outer fitting portion and extends upward along the axis, and one lateral groove which communicates with the vertical groove and extends in the circumferential direction. Notch for connecting connecting members is provided A step of preparing a bracket,
In the step of joining and fixing the coupling member to the one header, the receiver tank lower end is inserted and arranged in the outer fitting portion, and the outward flange is engaged with the lower surface side of the inward flange, By inserting the tank joint portion into the outer fitting portion from the lower side thereof in a mode in which the coupling member side projection is inserted into the vertical groove of the coupling member connecting cutout portion from the lower side thereof, the receiver tank lower end and the By joining the tank joining portions to each other, in that state, the bracket is rotated about the axis with respect to the joining member, and the joining member side projection is inserted into the lateral groove of the joining member connecting notch, And a step of holding the lower end of the receiver tank in a joined state with the tank joining portion.

In the ninth aspect of the invention, the receiver tank is inserted into the outer fitting portion from the lower side so that the outward flange is engaged with the lower surface side of the inward flange. preferable.

That is, when this structure is adopted, the receiver tank can be surely inserted into the outer fitting portion of the bracket.

The tenth invention specifies a refrigeration system using the heat exchanger with a receiver tank of the first invention.

That is, in the tenth aspect of the present invention, the refrigerant compressed by the compressor is condensed by the heat exchanger with the receiver tank, the condensed refrigerant is passed through the pressure reducer to reduce the pressure, and the reduced pressure refrigerant is evaporated by the evaporator. The heat exchanger with the receiver tank is a refrigeration system configured to be returned to the compressor by a heat exchanger main body in which a plurality of heat exchange paths are arranged in parallel between a pair of headers, and one of the headers. A receiver tank disposed along the tank, a tank joining portion for joining the lower end of the receiver tank, and a joining member joined and fixed to the one header, and the receiver tank lower end and the tank joining portion A bracket having an outer fitting portion capable of being fitted, for supporting and fixing the receiver tank to a peripheral member, and the outer fitting of the lower end of the receiver tank and the tank joint portion. While allowing the insertion operation into the receiver tank, the lower end of the receiver tank and the tank joining portion are joined to each other based on the operation of rotating the bracket around the axis with respect to the receiver tank and the connecting member in the inserted state. The gist is that which includes a connecting means for suppressing the direction.

The tenth invention has the same effects as the first invention.

The eleventh invention specifies a refrigeration system using the heat exchanger with a receiver tank of the second invention.

That is, in the eleventh aspect of the present invention, the refrigerant compressed by the compressor is condensed by the heat exchanger with the receiver tank, the condensed refrigerant is passed through the decompressor to be decompressed, and the decompressed refrigerant is evaporated by the evaporator. The heat exchanger with the receiver tank is a refrigeration system configured to be returned to the compressor by a heat exchanger main body in which a plurality of heat exchange paths are arranged in parallel between a pair of headers, and one of the headers. A receiver tank disposed along the tank, and a tank joining portion for joining the lower end of the receiver tank, a joining member joined and fixed to the one header, a lower end of the receiver tank, and the tank joining portion. A tubular outer fitting portion that can be fitted externally, and a bracket having a supporting piece provided at the outer fitting portion and having a tip end attached to a peripheral member are provided. A tank-side projection that projects outward is provided on the peripheral surface, and a coupling member-side projection that projects outward is provided on the outer peripheral surface of the tank joint portion, and an upper end is formed on the outer fitting portion of the bracket. A tank connecting cutout portion is provided which has a vertical groove that opens to the upper edge of the outer fitting portion and extends downward along the axis, and a lateral groove that has one end communicating with the vertical groove and that extends in the circumferential direction. A vertical groove having a lower end opening at a lower end edge of the external fitting portion and extending upward along an axis, and a lateral groove having one end communicating with the vertical groove and extending in a circumferential direction in the outer fitting portion of the bracket. And a coupling member coupling cutout portion having a coupling member coupling notch portion, and the tank side protrusion and the coupling member side protrusion are inserted into the respective vertical grooves of the tank coupling notch portion and the coupling member coupling notch portion from above and below. Aspect, the receiver tank The end and the tank joining portion are inserted into the outer fitting portion from both upper and lower sides thereof and joined to each other, and in this state, the bracket is rotated about an axis with respect to the receiver tank and the coupling member, and the tank By inserting the side projections and the connecting member side projections into the respective lateral grooves of the tank connecting notch and the connecting member connecting notch, the lower end of the receiver tank is held in a joined state at the tank joint. Things are the gist.

The eleventh invention has the same effects as the second invention.

The twelfth invention specifies a refrigeration system using the heat exchanger with a receiver tank of the third invention.

That is, in the twelfth aspect of the present invention, the refrigerant compressed by the compressor is condensed by the heat exchanger with the receiver tank, the condensed refrigerant is passed through the decompressor to be decompressed, and the decompressed refrigerant is evaporated by the evaporator. The heat exchanger with the receiver tank is a refrigeration system configured to be returned to the compressor by a heat exchanger main body in which a plurality of heat exchange paths are arranged in parallel between a pair of headers, and one of the headers. A receiver tank disposed along the tank, and a tank joining portion for joining the lower end of the receiver tank, a joining member joined and fixed to the one header, a lower end of the receiver tank, and the tank joining portion. A tubular outer fitting portion that can be fitted externally, and a bracket having a supporting piece provided at the outer fitting portion and having a tip end attached to a peripheral member are provided. An outward flange that projects outward is provided on the peripheral surface, and a coupling member side projection that projects outward is provided on the outer peripheral surface of the tank joint portion, and the upper end of the inner peripheral surface of the outer fitting portion of the bracket is provided. In addition, an inward flange protruding inward is provided, and at the outer fitting portion of the bracket, a lower end is opened to a lower end edge of the outer fitting portion, and a vertical groove extending upward along an axis, and one end Is provided with a notch for connecting the connecting member having a lateral groove extending in the circumferential direction and communicating with the vertical groove, the lower end of the receiver tank is inserted in the outer fitting portion, and the outward flange is directed inward. In a state in which the coupling member side protrusion is inserted into the vertical groove of the coupling member coupling cutout from below from the bottom side of the flange engaged with the coupling member side projection, the tank joint portion is attached to the outer fitting portion. Inserted from below The lower end of the receiver tank and the tank joining portion are joined to each other, and in that state, the bracket is rotated around the axis with respect to the joining member, and the joining member side protrusion is formed into the joining member connecting cutout portion. The gist of the present invention is that the lower end of the receiver tank is held in a joined state by the tank joining portion by being inserted into the lateral groove of the.

The twelfth invention has the same effects as the third invention.

[0071]

BEST MODE FOR CARRYING OUT THE INVENTION <First Embodiment> FIGS. 1 and 2 are front views showing a heat exchanger with a receiver tank according to a first embodiment of the present invention. As shown in both figures, this heat exchanger is a multi-flow type heat exchanger body (10).
A receiver tank (3), and a block flange (4) forming a connecting member for connecting the receiver tank (3) to the heat exchanger body (10).

The heat exchanger body (10) is provided with a pair of left and right vertically facing headers (11) facing each other. Between the pair of headers (11), a number of flat tubes (12) along the horizontal direction as heat exchange tubes (heat exchange passages) are connected to both headers (11) at both ends thereof. Then, they are arranged in parallel in the vertical direction at predetermined intervals. Flat tubes (12)
Corrugated fins (13) are arranged between each of the above and outside the outermost flat tube (12),
A strip plate side plate (14) is provided outside the outermost corrugated fin (13).

A partition member (16b) is provided at the same height position of both headers (11) in the heat exchanger body (10), and the upper flat tube (12) is bounded by the partition member (16b). ) Is configured as a condensing part (1), and the lower flat tube (12) is configured as a supercooling part independent of the condensing part (1).

Each header (11) is provided with a partition member (16a) which divides the flat tube (12) group of the condenser (1) into a plurality of paths, whereby the present embodiment is realized. In the heat exchanger body (10), the condensing part (1) is divided into three paths, first to third.

A condenser outlet (1b) is formed at the lower end of the condenser (1) in one header (11) of the heat exchanger body (10), and at the upper end of the other header (not shown). Has a condenser inlet (1a) formed therein. Further, a supercooling section inlet (2a) and a supercooling section outlet (2b) are formed at both ends of the supercooling section (2) in one of the headers.

The gas refrigerant flowing in from the condenser inlet (1a) of the heat exchanger body (10) circulates in the condenser (1) in a meandering manner, and the condenser outlet (1b) of one header (11). ), While the refrigerant is condensed by heat exchange with the outside air during its circulation.

The liquid refrigerant introduced from the subcooling unit inlet (2a) flows through the subcooling unit (2) and flows out through the subcooling unit outlet (2b), while flowing. The refrigerant is configured to be supercooled by the outside air.

The receiver tank (3) is composed of a vertically long round pipe member, and the lower end (31) has a receiver tank inlet (3a) and a receiver tank outlet (3) communicating with the inside of the tank.
b) is formed.

In the receiver tank (3), the refrigerant that has flowed in from the inlet (3a) is temporarily stored in the tank, and only the liquid refrigerant flows out from the outlet (3b).

Further, as shown in FIGS. 3 to 5, on the outer peripheral surface of the lower end of the receiver tank (3), tank side projections (35) and (35) projecting outward are provided with a phase of 180 ° in the circumferential direction. Two are provided at the shifted positions. In the drawings, in order to facilitate understanding of the invention, the protrusion (35)
Is hatched with diagonal lines (the following protrusion (4
The same applies to 6)).

On the other hand, one side of the block flange (4) has one side (1) of the condenser outlet (1).
b) and the periphery of the supercooling section inlet (2a), and a tank joint (4) with a horizontal cross section at the upper end on one side.
1) is provided.

The tank joint portion (41) is formed to have a size corresponding to the lower end (31) of the receiver tank (3), and the lower end of the receiver tank (3) can be fitted into the concave and convex portions. ing.

Further, on the tank joint portion (41), flange side projections (46) (46) projecting outward on the outer peripheral surface thereof.
, Are provided at two positions that are 180 degrees out of phase with each other in the circumferential direction.

Further, as shown in FIG. 2, in the block flange (4), an inflow path (4a) having one end opening to the upper surface of the tank joint portion (41) and the other end opening to one side surface.
And an outflow passage (4b) are formed.

Then, when the receiver tank (3) is fitted in the tank joint (41), the inlet (4a) allows the outlet (1b) of the condenser of the heat exchanger body (10) and the inlet (receiver) of the receiver tank (3). 3a) is communicatively connected, and the outflow passage (4b) is communicatively connected to the subcooling unit inlet (1a) of the heat exchanger body (10) and the receiver tank outlet (3b). .

As shown in FIGS. 1 to 4, a bracket (5) is provided on one header (11) side.
Is provided.

The bracket (5) is made of, for example, an integrally molded product obtained by extrusion molding or forging of aluminum or its alloy, and has a cylindrical outer fitting portion (51) and an outer peripheral surface of the outer fitting portion (51). And a support piece (52) integrally formed so as to project outward from.

A mounting hole (52a) is formed at the tip of the support piece (52) for inserting a fixing tool such as a bolt or a screw to fix it to the vehicle body.

The outer fitting portion (51) has an inner peripheral shape
The lower end (31) of the receiver tank (3) is formed to correspond to the outer peripheral shape of the tank joint (41) of the block flange (4), and the lower end of the receiver tank and the tank joint (41) can be externally fitted. Is configured.

The outer fitting portion (51) has two tank-side projections (3) at the lower end of the receiver tank (31) at the upper end of the peripheral wall portion thereof.
5) and (35) respectively, two L-shaped tank connecting cutouts (55) (55) are formed, and
At the lower end of the peripheral wall portion, two L's are respectively provided corresponding to the two flange side projections (46) (46) of the tank joint portion (41).
Notch portions (56) (56) for connecting the V-shaped flange are formed.

The notch (55) for connecting the tank has a width into which the tank-side protrusion (35) can be inserted, is opened at the upper edge of the outer fitting portion (51), and extends in the axial direction (vertical direction). A vertical groove (55a) extending downward along the vertical groove (55a) at one end.
And a lateral groove (55
b) and.

Further, the flange connecting cutout portion (56) has a width into which the flange side projection (35) can be inserted, is opened to the lower end edge of the outer fitting portion (51), and is upward along the axial direction. With a vertical groove (56a) extending in one direction, and one end communicating with the vertical groove (56a) and extending toward one side in the circumferential direction (56a).
b) and.

Then, as shown in FIGS. 4 and 5 (a),
The tank side projection (35) of the receiver tank lower end (31) is inserted into the vertical groove (55a) of the tank connecting cutout (55) in the outer fitting portion (51) of the bracket (5) from above. The lower end of the receiver tank (31) is fitted into the outer fitting portion (51) from above, and the block flange (4) is provided in the vertical groove (56a) of the flange coupling notch portion (56) in the outer fitting portion (51). The tank joint portion (41) is fitted into the outer fitting portion (51) from the lower side so that the flange side projections (46) (46) of (1) are inserted from the lower side. Thus, the receiver tank lower end (31) is fitted into the tank joint portion (41) in the outer fitting portion (51) and pressure-bonded to each other, and in that state, as shown in FIG. ) Is rotated in the circumferential direction with respect to the receiver tank (3) and the block flange (4), and the tank side protrusion (35) and the flange side protrusion (4
6) to the lateral groove (55b) of each notch (55) (56)
It is introduced into (56b) and engaged. As a result, the receiver tank (3) and the block flange (4) are restricted from moving upward and downward, and the receiver tank (3) and the block flange (4) are suppressed in the joining direction. Fixed.

In this embodiment, the upper end of the receiver tank (3) or the upper end of one header (11) may be connected to another bracket (6) as necessary, as shown by the imaginary line in FIG. ), It may be configured to be supported and fixed to the vehicle body or the like.

The heat exchanger with a receiver tank having the above construction is used as a condenser of an air conditioning refrigeration system of an automobile together with a compressor, a pressure reducing means and an evaporator. Then, in this refrigeration cycle, the high-temperature and high-pressure gas refrigerant compressed by the compressor flows from the condenser inlet (1a) into the condenser (1) and circulates, during which heat is exchanged with the outside air. After being condensed, it is discharged from the condenser outlet (1b).

The refrigerant flowing out from the condenser outlet (1b) passes through the inflow path (4a) of the block flange (4) and the receiver tank inlet (3a) and is introduced and stored in the receiver tank (3). It Further, of the stored refrigerant, liquid refrigerant flows out from the receiver tank outlet (3b).

The refrigerant flowing out from the receiver tank outlet (3b) flows into the outflow passage (4b) of the block flange (4),
And, it is introduced into the supercooling section (2) through the supercooling section inlet (2a) of the heat exchanger body (10).

The liquid refrigerant introduced into the subcooling section (2) is
After being supercooled by the outside air while flowing through the supercooling section (2), it is discharged through the subcooling section outlet (2b) and sequentially flows through the pressure reducing means, the evaporator, and the compressor, and thus the refrigerant is discharged. However, it circulates in the refrigeration cycle.

As described above, according to the heat exchanger with receiver tank of this embodiment, when the receiver tank (3) is assembled to the block flange (4), the lower end of the receiver tank (31) and the block flange (4) are assembled. The tank joining portion (41) is inserted from above and below both sides of the outer fitting portion (51) of the bracket (5) and joined, and in that state, the bracket (5) is rotated in the circumferential direction so that the receiver tank (3) is fixed. It can be fixed to the block flange (4) in a suppressed state. Therefore, no troublesome work such as screwing is required, so that the receiver tank assembling work can be easily performed.

Further, the projections (35) (46) of the receiver tank (3) and the block flange (4) are provided with the vertical grooves (55) of the notches (55) (56) in the bracket (5).
a) (56a) and engage with the lateral grooves (55b) (56b) to fix the receiver tank (3) and the block flange (4) in a state in which they are suppressed in the joining direction. The receiver tank (3) can be firmly joined to the block flange (4) with high strength.

Further, since fasteners such as screws and bolts are not used for assembling the receiver tank, the number of parts can be reduced accordingly, and the structure can be simplified and the cost can be reduced.

Further, in this embodiment, the protrusion (35)
Since the receiver tank (3) is assembled to the flange (4) by engaging the notch (55) (56) with the notch (55) (56), it is not necessary to perform a troublesome thread cutting process, and the component parts can be manufactured. It can be performed easily, and as a result, the assembling work can be performed more easily.

Moreover, in the present embodiment, the bracket (5) as a supporting member for supporting and fixing to the vehicle body.
Is also used as a member for joining the receiver tank (3) and the flange (4), the number of parts can be further reduced by combining the members, and the structure can be further simplified and the cost can be reduced. Can be reduced.

In this embodiment, since the bracket (5) is an integrally molded aluminum product, the strength of the bracket itself can be improved, and the receiver tank ( 3)
Can be fixed to the block flange (4). Moreover, since the bracket (5) can be manufactured in one piece, the number of parts can be further reduced, and the structure can be further simplified and the cost can be further reduced.

<Second Embodiment> FIGS. 6 and 7 are partially cutaway side views showing the vicinity of a bracket in a heat exchanger with a receiver tank according to a second embodiment of the present invention.

As shown in these figures, the receiver tank (3) in the second embodiment has a lower end outer periphery,
An outward flange (37) protruding outward is continuously formed in the circumferential direction. Furthermore, the outer fitting portion (5
At the upper edge of 1), an inward flange (57) protruding inward is continuously formed in the circumferential direction so as to correspond to the outward flange (37).

Further, in the second embodiment, the first
Unlike the embodiment, the tank-side projection at the lower end of the receiver tank and the tank connecting cutout at the upper end of the outer fitting portion (51) are not provided.

Since the other structure is the same as that of the first embodiment, the same parts are designated by the same reference numerals and the duplicate description will be omitted.

6 and 7, the flange side projection (46) of the block flange (4) is hatched with diagonal lines to facilitate understanding of the invention.

In the second embodiment, when the receiver tank (3) is assembled to the block flange (4), first, as shown in FIG. 7 (a), the outer fitting portion (51) of the bracket (5) is attached. , The receiver tank (3) is inserted from the lower side thereof, and the upper part of the receiver tank (3) is pulled out upward from the upper end of the fitting part (51),
Outward flange (37) at the bottom of receiver tank (31)
To the lower surface side of the inward flange (57) of the outer fitting portion (51). Subsequently, as shown in FIG. 7B, the protrusion (4) on the side of the block flange (4) is provided in the vertical groove (56a) of the cutout portion (56) in the outer fitting portion (51) of the bracket (5).
6) Insert the flange (4) from below.
The tank joint portion (41) is fitted into the outer fitting portion (51) from the lower side, and the tank joining portion (41) is fitted into the receiver tank lower end (31) and joined. Further, in a state in which the tank joint portion (41) is pressed against the lower end (31) of the receiver tank, the bracket (5) is rotated in the circumferential direction with respect to the receiver tank (3) as shown in FIG. 46) is introduced into the lateral groove (56b) of the notch (56) and engaged. As a result, the receiver tank (3) and the block flange (4) are restricted from moving in the upward and downward directions, and are fixed in a state in which they are suppressed in the joining direction.

In the heat exchanger with receiver tank of the second embodiment, as in the first embodiment, the receiver tank (3) can be assembled easily and reliably, and the number of parts can be reduced and the machining operation can be performed. The simplification of the structure makes it possible to simplify the structure and reduce the cost.

Although the bracket (5) is not fixed to the header (11) in each of the above-described embodiments, the present invention is not limited to this, and a part of the bracket (5) may be attached to the header (11). ) May be joined and fixed.

In the present invention, the projections (35) (4
The number of 6) and the notches (55) and (56) is not limited to those in the above embodiment.

Further, in the second embodiment, the inward flange (37) and the outward flange (57) are formed continuously in the circumferential direction, but the present invention is not limited to this, and any one of them is used. One flange or both flanges may be formed intermittently in the circumferential direction.

In the present invention, the number of flat tubes and the number of passes of the heat exchanger body are not limited to those mentioned above.

Furthermore, in the present invention, the subcooling portion of the heat exchanger body may be divided into two or more paths.

[0117]

As described above, according to the heat exchanger with a receiver tank of the first to third inventions, the lower end of the receiver tank and the tank joint portion of the coupling member are inserted into the outer fitting portion of the bracket. By rotating the bracket, the lower end of the receiver tank and the tank joining portion of the joining member are joined together in a suppressed state, so that the receiver tank can be easily and reliably assembled to the joining member. Further, since it is not necessary to use screws or bolts and thread cutting processing is required, it is possible to simplify the structure and reduce the cost. Moreover, since the bracket for supporting and fixing to the vehicle body or the like is also used as a member for joining the receiver tank and the coupling member, the number of parts can be further reduced by using the members together, and the structure can be further improved. There is an effect that simplification and cost reduction can be achieved.

Since the fourth to sixth inventions specify the receiver tank assembly structure of the heat exchanger utilizing the first to third inventions, similar effects to the above can be obtained. You can

Since the seventh to ninth inventions specify the method of assembling the receiver tank of the heat exchanger utilizing the first to third inventions, the same effects as the above can be obtained. You can

Since the tenth to twelfth inventions specify the refrigerating system utilizing the first to third inventions, the same effect as the above can be obtained.

[Brief description of drawings]

FIG. 1 is a front view showing a heat exchanger with a receiver tank according to a first embodiment of the present invention with an intermediate part thereof omitted.

FIG. 2 is a schematic front view showing a refrigerant flow path in the heat exchanger of the first embodiment.

FIG. 3 is an enlarged front view showing the vicinity of the bracket in the heat exchanger of the first embodiment.

4A and 4B are views showing a bracket applied to the heat exchanger of the first embodiment, wherein FIG. 4A is a side view and FIG.
Is a plan view.

FIG. 5 is a view showing the periphery of the assembly joint between the receiver tank and the block flange in the heat exchanger of the first embodiment, FIG. 5 (a) is a side view showing a state during assembly.
FIG. 11B is a side view showing the assembly completed state.

FIG. 6 is a view showing the vicinity of an assembled joint between a receiver tank and a block flange in the heat exchanger according to the second embodiment.

FIG. 7 is a diagram showing the periphery of an assembled joint between a receiver tank and a block flange in the heat exchanger of the second embodiment, in which FIG. 7 (a) is a partially cutaway side view showing a state in which the block flange is being inserted. FIG. 1B is a partially cutaway side view showing a state where the block flange has been completely inserted.

FIG. 8 is a schematic front view showing a refrigerant flow path in a conventional heat exchanger with a receiver tank.

[Explanation of symbols]

1 ... Condensing part 2 ... Supercooling section 3 ... Receiver tank 31 ... bottom 35 ... Tank side protrusion 37 ... Outward flange 4 ... Block flange (coupling member) 41 ... Tank joint 46 ... Flange side protrusion (joint member side protrusion) 5 ... Bracket 51 ... External fitting portion 52 ... Support piece 55 ... Notch for tank connection 55a ... Vertical groove 55b ... Horizontal groove 56 ... Notch for flange connection 56a ... Vertical groove 56b ... Horizontal groove 57 ... Inward flange 10 ... Heat exchanger body 11 ... Header P1-P3 ... pass

Claims (24)

[Claims] 1. A heat exchanger body in which a plurality of heat exchange paths are arranged in parallel between a pair of headers, a receiver tank arranged along one header, and a lower end of the receiver tank for joining. A joining member having a tank joining portion, which is joined and fixed to the one header, and an outer fitting portion capable of fitting the lower end of the receiver tank and the tank joining portion, and supports and fixes the receiver tank to a peripheral member. And a bracket for allowing the insertion operation of the receiver tank lower end and the tank joint portion to the outer fitting portion, in the inserted state, the bracket around the axis relative to the receiver tank and the coupling member. A receiver tank comprising a lower end of the receiver tank and a connecting means for suppressing the tank joint portion in a direction in which they are joined to each other based on an operation of rotating the receiver tank. Heat exchanger can. 2. A heat exchanger body in which a plurality of heat exchange paths are arranged in parallel between a pair of headers, a receiver tank arranged along one of the headers, and a lower end of the receiver tank for joining. A joining member that has a tank joining portion and is joined and fixed to the one header, a cylindrical outer fitting portion that can fit the lower end of the receiver tank and the tank joining portion, and the outer fitting portion. A bracket having a support piece whose tip is attached to a peripheral member, the outer peripheral surface of the lower end of the receiver tank is provided with a tank-side protrusion protruding outward, and the outer peripheral surface of the tank joint portion is externally provided. A coupling member-side projection that protrudes to the outer fitting portion of the bracket, the upper end of which is open to the upper end edge of the outer fitting portion, and a vertical groove that extends downward along the axis, and one end of the vertical groove. In a row A notch for tank connection having a lateral groove extending therethrough in the circumferential direction is provided, and a lower end of the outer fitting portion of the bracket is opened at a lower end edge of the outer fitting portion and is upward along an axial center. A coupling member coupling notch having an extending vertical groove and a lateral groove having one end communicating with the vertical groove and extending in the circumferential direction is provided, and the tank side protrusion and the coupling member side protrusion are the tank coupling notch. And a manner in which the receiver groove bottom end and the tank joint portion are inserted into the outer fitting portion from both the upper and lower sides thereof and are joined to each other in a manner that the vertical grooves of the coupling member connecting cutout portion are inserted from the upper and lower sides thereof. In this state, the bracket is rotated about the axis with respect to the receiver tank and the coupling member, and the tank-side projection and the coupling-member-side projection are coupled to the tank connecting cutout and the coupling member. By being inserted into the lateral grooves of the member connecting notches, a receiver tank with a heat exchanger wherein the receiver tank bottom is characterized by comprising held in the joined state to the tank junction. 3. A heat exchanger main body in which a plurality of heat exchange paths are arranged in parallel between a pair of headers, a receiver tank arranged along one header, and a lower end of the receiver tank for joining. A joining member that has a tank joining portion and is joined and fixed to the one header, a cylindrical outer fitting portion that can fit the lower end of the receiver tank and the tank joining portion, and the outer fitting portion. A bracket having a supporting piece whose tip is attached to a peripheral member, and an outer flange protruding outward is provided on the outer peripheral surface of the lower end of the receiver tank, and an outer flange is formed on the outer peripheral surface of the tank joint portion. A coupling member-side protrusion that protrudes inward is provided, and an inwardly-projecting flange that protrudes inward is provided at the upper end of the inner peripheral surface of the outer fitting portion of the bracket. In the fitting portion, a coupling member having a vertical groove whose lower end opens to the lower edge of the outer fitting portion and extends upward along the axial center, and a lateral groove whose one end communicates with the vertical groove and extends in the circumferential direction. A coupling cutout is provided, the receiver tank lower end is inserted and arranged in the outer fitting portion, and the coupling member side projection is the state in which the outward flange is engaged with the lower surface side of the inward flange. In the aspect of being inserted from the lower side into the vertical groove of the coupling member connecting cutout portion, by inserting the tank joint portion from the lower side into the outer fitting portion, the receiver tank lower end and the tank joint portion are inserted. The receiver tank is joined to each other, and in that state, the bracket is rotated around the axis with respect to the coupling member, and the coupling member side projection is inserted into the lateral groove of the coupling member coupling cutout portion. The lower end is the A receiver tank with heat exchanger characterized by comprising held in the joined state the click joint. 4. A plurality of heat exchange passages in the main body of the heat exchanger are partitioned into a condensing section and a subcooling section independent from each other, and a refrigerant condensed by the condensing section passes through the inside of the coupling member and the receiver. 4. The receiver tank according to claim 2, wherein the receiver tank is configured to be guided and stored in a tank, and a liquid refrigerant of the stored refrigerant is guided to the supercooling section through the coupling member and is supercooled. With heat exchanger. 5. The heat exchange passage in the condenser section of the heat exchanger body is divided into a plurality of paths, and the refrigerant is configured to flow in a meandering manner in each path in order. Heat exchanger with receiver tank. 6. The heat exchanger with a receiver tank according to claim 2, wherein the bracket is formed by an integrally molded product in which the support piece is integrally formed on an outer fitting portion of the bracket. 7. The heat exchanger with a receiver tank according to claim 6, wherein the bracket is formed of an extruded product of aluminum or its alloy. 8. The heat exchanger with a receiver tank according to claim 6, wherein the bracket is formed of a forged product of aluminum or its alloy. 9. The heat exchanger with a receiver tank according to claim 2, wherein the bracket is arranged in a non-fixed state with respect to the header. 10. The tank-side protrusions and the coupling member-side protrusions are provided in plural at intervals in the circumferential direction, and the tank coupling notch and the coupling member coupling notch are provided at the tank-side protrusion, The heat exchanger with a receiver tank according to claim 2, wherein a plurality of heat exchangers are provided corresponding to the coupling member side projections. 11. The tank-side protrusion and the coupling member-side protrusion 2 are respectively provided at positions shifted in phase by 180 ° in the circumferential direction.
The heat exchanger with a receiver tank according to claim 10, wherein the heat exchanger is provided one by one. 12. The coupling member-side projections are provided in a plurality at intervals in the circumferential direction, and the coupling member-side cutout portions are provided in a plurality corresponding to the coupling member-side projections. Heat exchanger with receiver tank as described. 13. The connecting member-side projection is formed in a circumferential direction by 18
2. Two units are provided at positions shifted by 0 ° in phase.
2. A heat exchanger with a receiver tank according to 2. 14. The heat exchanger with a receiver tank according to claim 3, wherein the outward flange and the inward flange are continuously formed in the circumferential direction. 15. A receiver tank assembling structure of a heat exchanger for assembling a receiver tank to a heat exchanger main body in which a plurality of heat exchange paths are arranged in parallel between a pair of headers along one header. And a joining member having a tank joining portion for joining the lower end of the receiver tank and joined and fixed to the one header, and an outer fitting portion capable of fitting the lower end of the receiver tank and the tank joining portion to each other. And a bracket for supporting and fixing the receiver tank to a peripheral member, while permitting an insertion operation into the outer fitting portion of the receiver tank lower end and the tank joint portion, in the inserted state, the bracket The lower end of the receiver tank and the tank joining portion are joined to each other based on an operation of rotating the receiver tank and the joining member around an axis. And a connecting means for suppressing the heat in a direction to perform the heat treatment, wherein the receiver tank lower end and the tank joining portion are joined and fixed to each other by the joining means in a state of being fitted into the outer fitting portion. Exchanger receiver tank assembly structure. 16. A receiver tank assembling structure of a heat exchanger for assembling a receiver tank along a header of a heat exchanger main body in which a plurality of heat exchange paths are arranged in parallel between a pair of headers. And a joining member that has a tank joining portion for joining the lower end of the receiver tank, and is joined and fixed to the one header, and a tubular shape that can externally fit the lower end of the receiver tank and the tank joining portion. A bracket having an outer fitting portion and a support piece provided at the outer fitting portion and having a tip end attached to a peripheral member is provided, and a tank-side projection protruding outward is provided on an outer peripheral surface of the lower end of the receiver tank. Along with the outer peripheral surface of the tank joint portion, a coupling member side protrusion protruding outward is provided, and an upper end of the outer fitting portion of the bracket is opened at an upper edge of the outer fitting portion. A tank connecting notch having a vertical groove extending downward along the axis and one end communicating with the vertical groove and a lateral groove extending in the circumferential direction is provided, and the outer fitting portion of the bracket has a lower end. A coupling member connecting cutout portion is provided, which has a vertical groove that opens to the lower end edge of the outer fitting portion and extends upward along the axis, and a lateral groove that has one end communicating with the vertical groove and that extends in the circumferential direction. The receiver tank lower end and the tank joint are arranged such that the tank-side protrusion and the coupling member-side protrusion are inserted into the respective vertical grooves of the tank coupling notch and the coupling member coupling notch from the upper and lower sides thereof. The parts are inserted into the outer fitting part from both upper and lower sides thereof and joined to each other, and in this state, the bracket is rotated around the axis with respect to the receiver tank and the coupling member, and the tank-side protrusion and the front part. The joint member side protrusion is inserted into each of the lateral grooves of the tank connecting notch and the connecting member connecting notch so that the lower end of the receiver tank is held in a joined state at the tank joint. Assembling structure of receiver tank of heat exchanger. 17. A receiver tank assembling structure of a heat exchanger for assembling a receiver tank along a header of a heat exchanger body, wherein a plurality of heat exchange paths are arranged in parallel between a pair of headers. And a joining member that has a tank joining portion for joining the lower end of the receiver tank, and is joined and fixed to the one header, and a tubular shape that can externally fit the lower end of the receiver tank and the tank joining portion. A bracket having an outer fitting portion and a support piece provided on the outer fitting portion and having a tip end attached to a peripheral member is provided, and an outer flange protruding outward is provided on an outer peripheral surface of the lower end of the receiver tank. At the same time, a coupling member side protrusion that projects outward is provided on the outer peripheral surface of the tank joint portion, and an inwardly-directing protrusion that projects inward is provided at the upper end of the inner peripheral surface of the outer fitting portion of the bracket. And a vertical groove having a lower end opening at a lower end edge of the external fitting portion and extending upward along an axis, and one end communicating with the vertical groove in the outer fitting portion of the bracket, and A coupling member connecting cutout portion having a lateral groove extending in the circumferential direction is provided, the receiver tank lower end is inserted and arranged in the outer fitting portion, and the outward flange is engaged with a lower surface side of the inward flange. In the state, in the aspect in which the coupling member side projection is inserted into the vertical groove of the coupling member connecting cutout portion from below, by inserting the tank joining portion into the outer fitting portion from below, The lower end of the receiver tank and the tank joining portion are joined to each other, and in this state, the bracket is rotated about the axis with respect to the joining member, and the joining member side projection is a lateral groove of the joining member connecting cutout portion. Inserted in The receiver tank assembling structure for a heat exchanger, wherein the lower end of the receiver tank is held in a joined state by the tank joining portion by being inserted. 18. A method of assembling a receiver tank of a heat exchanger for assembling a receiver tank to a heat exchanger main body in which a plurality of heat exchange paths are arranged in parallel between a pair of headers so as to extend along one header. There is a step of preparing a joining member having a tank joining portion for joining the lower end of the receiver tank, and an outer fitting portion capable of fitting the lower end of the receiver tank and the tank joining portion, And a step of preparing a bracket for supporting and fixing the bracket to the peripheral member, while allowing the insertion operation of the receiver tank lower end and the tank joint portion to the outer fitting portion, in the inserted state, the bracket is the receiver tank. And a method of joining the lower end of the receiver tank and the tank joining portion to each other based on an operation of rotating the joining member around the axis. A step of preparing a connecting means for suppressing the direction, a step of joining and fixing the joining member to the one header, a receiver tank lower end and the tank joining portion are fitted in the outer fitting portion, A method of assembling a receiver tank of a heat exchanger, the method comprising the step of joining and fixing each other by a connecting means. 19. A method of assembling a receiver tank of a heat exchanger for assembling a receiver tank along a header of a heat exchanger body, wherein a plurality of heat exchange paths are arranged in parallel between a pair of headers. Then, as the receiver tank, on the outer peripheral surface of the lower end thereof, a step of preparing one provided with a tank-side protrusion projecting outward, and a tank joining portion for joining the lower end of the receiver tank, A step of preparing a coupling member provided with a coupling member side protrusion projecting outward on the outer peripheral surface of the tank joint portion; and a cylindrical outer fitting portion capable of fitting the lower end of the receiver tank and the tank joint portion to each other. And a support piece provided at the outer fitting portion and having a tip attached to the peripheral member, the upper end of the outer fitting portion being open at the upper edge of the outer fitting portion, and the shaft. Along the heart Is provided with a vertical groove extending downward and a lateral groove extending in the circumferential direction and having one end communicating with the vertical groove, and a lower end of the outer fitting portion having a lower end at the outer fitting portion. A bracket provided with a notch for connecting the connecting member, which has a vertical groove that opens at the lower end edge of the connector and extends upward along the axis, and a lateral groove that has one end communicating with the vertical groove and that extends in the circumferential direction. A step of preparing, a step of joining and fixing the joining member to the one header, and the tank-side projection and the joining member-side projection in each vertical groove of the tank connecting notch and the connecting member connecting notch In a mode of inserting from the upper and lower sides thereof, the receiver tank lower end and the tank joint portion are inserted into the outer fitting portion from both upper and lower sides thereof and joined to each other, and in that state, the bracket is attached to the receiver tank and the joint. By rotating the member around the axis about the axis and inserting the tank-side projection and the coupling member-side projection into the lateral grooves of the tank coupling notch and the coupling member coupling notch, the receiver tank lower end is formed. A method of assembling a receiver tank of a heat exchanger, comprising the step of holding the tank joining portion in a joined state. 20. A method of assembling a receiver tank of a heat exchanger for assembling a receiver tank to a heat exchanger main body in which a plurality of heat exchange paths are arranged in parallel between a pair of headers so as to extend along one header. Then, as the receiver tank, on the outer peripheral surface of the lower end thereof, a step of preparing an outwardly projecting outward flange is provided, and a tank joint portion for joining the lower end of the receiver tank, A step of preparing a coupling member provided with a coupling member side protrusion projecting outward on the outer peripheral surface of the tank joint portion; and a cylindrical outer fitting portion capable of fitting the lower end of the receiver tank and the tank joint portion to each other. And a support piece provided on the outer fitting portion and having a tip attached to a peripheral member, wherein an inwardly projecting inward flange is provided on an upper end of an inner peripheral surface of the outer fitting portion. At the same time, in the lower portion of the outer fitting portion, a vertical groove whose lower end opens to the lower edge of the outer fitting portion and extends upward along the axis, and one end communicates with the vertical groove and extends in the circumferential direction. A step of preparing a bracket provided with a connecting member connecting notch formed of a lateral groove; a step of joining and fixing the connecting member to the one header; and a lower end of the receiver tank inserted into the outer fitting portion. ,
In a state in which the outward flange is engaged with the lower surface side of the inward flange, the joining member side projection is inserted into a vertical groove of the joining member connecting cutout portion from below, in which the tank joining portion is inserted. The receiver tank lower end and the tank joining portion are joined to each other by inserting the outer fitting portion from the lower side thereof, and in that state, the bracket is rotated about the axis with respect to the joining member, A method of assembling a receiver tank of a heat exchanger, comprising the step of inserting a coupling member side projection into a lateral groove of the coupling member connecting cutout portion to hold the lower end of the receiver tank in a joined state with the tank joining portion. 21. The receiver tank is inserted into the outer fitting portion from below to engage the outward flange with a lower surface side of the inward flange.
Method for assembling the receiver tank of the heat exchanger described. 22. The refrigerant compressed by a compressor is condensed by a heat exchanger with a receiver tank, the condensed refrigerant is passed through a pressure reducer to reduce the pressure, and the reduced pressure refrigerant is evaporated by an evaporator to the compressor. A refrigeration system configured to return the heat exchanger with the receiver tank, wherein the heat exchanger main body in which a plurality of heat exchange paths are arranged in parallel between a pair of headers and one header are arranged. A receiver tank, a joining member having a tank joining portion for joining the lower end of the receiver tank, and joined and fixed to the one header, and an outer fitting capable of fitting the lower end of the receiver tank and the tank joining portion to each other. A bracket for supporting and fixing the receiver tank to a peripheral member, and an operation of inserting the lower end of the receiver tank and the tank joint into the outer fitting part. In the inserted state, while being inserted, based on an operation of rotating the bracket about the axis with respect to the receiver tank and the coupling member, the lower end of the receiver tank and the tank joining portion are connected to each other in a joining direction. A refrigeration system comprising: 23. A refrigerant compressed by a compressor is condensed by a heat exchanger with a receiver tank, the condensed refrigerant is passed through a pressure reducer to reduce the pressure, and the reduced pressure refrigerant is evaporated by an evaporator to the compressor. A refrigeration system configured to return the heat exchanger with the receiver tank, wherein the heat exchanger main body in which a plurality of heat exchange paths are arranged in parallel between a pair of headers and one header are arranged. A receiver tank, a joining member for joining the lower end of the receiver tank, and a joining member joined and fixed to the one header, and a cylinder to which the lower end of the receiver tank and the tank joining portion can be externally fitted. A bracket having an outer fitting portion and a support piece provided at the outer fitting portion and having a tip end attached to a peripheral member. The bracket fits outward on the outer peripheral surface of the lower end of the receiver tank. A tank-side protrusion that projects is provided, and an outer peripheral surface of the tank joint portion is provided with a coupling member-side protrusion that projects outward, and an outer fitting portion of the bracket is
A tank connecting notch having an upper end opening at the upper end edge of the outer fitting portion and having a vertical groove extending downward along the axis and a lateral groove having one end communicating with the vertical groove and extending in the circumferential direction. A vertical groove provided on the outer fitting portion of the bracket and having a lower end opening at a lower end edge of the outer fitting portion and extending upward along an axis, and one end communicating with the vertical groove, and a circumferential direction. A connecting member connecting notch having a lateral groove extending to the tank connecting protrusion and the connecting member connecting notch from the upper and lower sides of each of the tank connecting notch and the connecting member connecting notch. In the aspect of being inserted, the lower end of the receiver tank and the tank joint portion are inserted into the outer fitting portion from both upper and lower sides thereof and are joined to each other, and in this state, the bracket is axial with respect to the receiver tank and the coupling member. Gyrus And the tank-side projection and the coupling member-side projection are inserted into the lateral grooves of the tank connecting notch and the connecting member connecting notch, respectively, so that the receiver tank lower end becomes the tank joint. A refrigeration system characterized by being held in a joined state. 24. The refrigerant compressed by a compressor is condensed by a heat exchanger with a receiver tank, the condensed refrigerant is passed through a pressure reducer to reduce the pressure, and the reduced pressure refrigerant is evaporated by an evaporator to the compressor. A refrigeration system configured to return the heat exchanger with the receiver tank, wherein the heat exchanger main body in which a plurality of heat exchange paths are arranged in parallel between a pair of headers and one header are arranged. A receiver tank, a joining member for joining the lower end of the receiver tank, and a joining member joined and fixed to the one header, and a cylinder to which the lower end of the receiver tank and the tank joining portion can be externally fitted. A bracket having an outer fitting portion and a support piece provided at the outer fitting portion and having a tip end attached to a peripheral member. The bracket fits outward on the outer peripheral surface of the lower end of the receiver tank. An outwardly facing flange is provided, and a coupling member-side projection that projects outward is provided on the outer peripheral surface of the tank joint portion, and projects inward at the upper end of the inner peripheral surface of the outer fitting portion of the bracket. An inward flange is provided, and in the outer fitting portion of the bracket, a lower end is opened at a lower end edge of the outer fitting portion, and a vertical groove extending upward along an axis and one end communicates with the vertical groove. And a coupling member connecting notch having a lateral groove extending in the circumferential direction is provided, the lower end of the receiver tank is inserted into the outer fitting portion, and the outward flange is engaged with a lower surface side of the inward flange. In a state in which the connecting member side projection is inserted into the vertical groove of the connecting member connecting cutout from below, the tank joining portion is inserted into the external fitting portion from below. The above The lower end of the sheave tank and the tank joining portion are joined to each other, and in this state, the bracket is rotated around the axis with respect to the joining member, and the joining member side projection is inserted into the lateral groove of the joining member connecting cutout portion. As a result, the lower end of the receiver tank is held in a joined state with the tank joining portion.