JP6227910B2 - Cold storage heat exchanger and manufacturing method thereof - Google Patents

Description

  The present invention relates to a cold storage heat exchanger that can be used as an evaporator (evaporator) in a refrigeration cycle such as a car air conditioner and that can store and cool by a cold storage material, and a method for manufacturing the same.

  As shown in Patent Document 1 or the like, the cold storage heat exchanger is a plurality of flat refrigerants arranged in parallel at predetermined intervals with the flat portions facing each other between the two tanks while communicating with the two tanks. And a regenerator container that is disposed in a gap between flat portions of some adjacent flat refrigerant tubes and in which a regenerator material is enclosed.

  The cold storage heat exchanger is usually used as an evaporator in a refrigeration cycle such as a car air conditioner. Therefore, the refrigerant supplied via the condenser and the expansion valve by the compressor driven by the engine flows through the refrigerant pipe and evaporates here. Then, the cooling air is cooled by removing evaporative heat from the air flowing through the gap where the fins are arranged between the flat portions of the adjacent refrigerant tubes. At this time, the cool storage material in the cool storage material container disposed between the flat portions of some adjacent refrigerant tubes is stored cold. Thereafter, when the engine is stopped due to idle stop or the like, the air is cooled by using the cold energy stored in the cold storage material to ensure the cooling capacity.

JP 2010-149814 A

  By the way, in the manufacturing process of the cold storage heat exchanger, the cold storage material container is inserted into a gap between the flat portions of some adjacent refrigerant pipes in the assembled state to be brazed. From the viewpoint of production efficiency, the brazing-joined cool storage material container can be used for airtightness inspection, filling the cool storage material, and closing the filling port after filling the cool storage material. Therefore, it is preferable to carry out simultaneously for a plurality of cold storage material containers.

  However, in the gap between the flat portions of some adjacent refrigerant pipes, there is a clearance above and below the cold storage material container to be inserted, so the insertion state varies for each cold storage material container, and the cold storage material container There are cases where brazing and joining are performed while the positions are shifted from each other.

  For this reason, although the filling port is provided at a predetermined position of the cool storage material container, the position of the filling port differs in the vertical direction for each cool storage material container in the entire regenerative heat exchanger. On the premise that it is in the position, it becomes difficult to simultaneously perform airtightness inspection, filling of the regenerator material, closing the filling port, etc. with respect to a plurality of regenerator containers, thereby reducing the production efficiency. In addition, a gap without fins is generated between the flat portions of the refrigerant pipe, and the heat that is supposed to pass through the gaps between the flat portions with fins is diverted into the gap, thereby evaporating heat. Since it became difficult, there existed a possibility that the air_conditioning | cooling capability of a cool storage heat exchanger might fall.

  Then, an object of this invention is to provide the cool storage heat exchanger which suppressed the position shift of the cool storage material container, and its manufacturing method in view of such a problem.

  A cold storage heat exchanger according to the present invention includes a plurality of flat refrigerant pipes arranged in parallel at a predetermined interval with two flat tanks facing each other while communicating with the two tanks between two tanks. It is presupposed that a plurality of cold storage material containers are arranged and fixed in the gaps between the flat portions of the flat refrigerant pipes adjacent to each other and in which the cold storage material is enclosed.

Each of the plurality of cold storage material containers includes a main body that encloses the cold storage material, and a cold storage material filling pipe that extends from a predetermined position of the main body and protrudes to the outside of the gap to form a filling port of the cold storage material. . The cold accumulating material packed tube, with the tip of the cold accumulating material packed tube to have a pair of first slits formed by notches formed toward the body, a second slit extending toward the main body from the front end The pair of first slits are located between the plurality of cold storage material containers so as to overlap in a juxtaposed direction in which the plurality of flat refrigerant tubes are juxtaposed , and the second slit is the tip A portion including the lowermost portion is cut out .

  Moreover, the manufacturing method of the cool storage heat exchanger which concerns on this invention is the some flat refrigerant | coolant arranged in parallel at predetermined intervals with a flat part facing each other between two tanks between two tanks. It is assumed that a plurality of cold storage material containers in which a cold storage material is sealed are arranged and fixed in a space between the flat portions of some of the flat refrigerant tubes adjacent to each other.

  A main body that encloses the cold storage material, and a cold storage material filling pipe that extends from a predetermined position of the main body and protrudes outside the gap and forms a filling port of the cold storage material. A pair of slits formed by cutting out from the front end of the regenerator filling tube toward the main body, and the pair of slits, when the regenerator container is inserted into the gap, the plurality of flat refrigerant tubes The cold storage material containers positioned so as to line up in the juxtaposed direction are arranged so that the pair of slits overlap in the juxtaposition direction between the plurality of cold storage material containers when inserted in the gap. After being positioned, it is fixed.

  According to the cold storage heat exchanger and the manufacturing method thereof of the present invention, it is possible to suppress the displacement of the cold storage material container.

1 is an overall perspective view of a cold storage heat exchanger according to an embodiment of the present invention. It is a schematic perspective view which shows the flow of the refrigerant | coolant in a cool storage heat exchanger. It is a disassembled perspective view which shows the detail of a cool storage material container. It is a plane cross-sectional view of the cool storage material container arrange | positioned between refrigerant pipes. The detail of a cool storage material filling pipe | tube is shown, (a) is an A direction arrow directional view of FIG. 1, (b) is a BB arrow partial sectional view of (a). FIG. 2 is a view in the direction of arrow A in FIG. 1 around the lower header tank of the cold storage heat exchanger, where (a) shows the cold storage material container before positioning, and (b) shows the cold storage material container after positioning.

Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 shows an example of a cold storage heat exchanger (cold storage evaporator) having a cold storage material container.

  The regenerative heat exchanger 10 includes an upper header tank 12, a lower header tank 14, a plurality of refrigerant pipes 16 communicating the upper header tank 12 and the lower header tank 14, and adjacent refrigerant pipes 16, 16. The fin 18 arrange | positioned in a space | gap, the some cool storage material container 20 arrange | positioned instead of the fin 18 in a part of space | gap, and the side plate 22 of both sides are comprised.

  The upper header tank 12 extends in the horizontal direction and has two tanks in the front-rear direction orthogonal to the extending direction, that is, the upstream side of the air flowing into the cold storage heat exchanger 10 is the front side, and the downstream side is the rear side. As a side, it is divided into a front upper front tank 12a and a rear upper rear tank 12b. Here, a refrigerant inlet 24 is formed at one end of the upper rear header tank 12b, and a refrigerant outlet 26 is formed at one end of the upper front header tank 12a adjacent thereto.

  The lower header tank 14 extends in the horizontal direction below the upper header tank 12 in the same manner as the upper header tank 12 and has two tanks in the front-rear direction orthogonal to the extending direction, that is, the upper front header tank. Similarly to 12a and upper rear header tank 12b, it is divided into lower front tank 14a and lower rear tank 14b.

  The refrigerant pipe 16 has a flat shape, and is arranged in parallel at a predetermined interval with the flat portions facing each other. The refrigerant pipes 16 are here arranged in two front and rear rows, the front first row communicates the upper front header tank 12a and the lower front header tank 14a, and the rear second row is the upper rear header. The tank 12b communicates with the lower rear header tank 14b. In addition, a gap is formed between the flat portions of the refrigerant pipes 16 and 16 that are adjacent to each other in the juxtaposed direction and through which the air that exchanges heat with the refrigerant in the refrigerant pipes 16 and 16 passes. The upper and lower ranges of the gap are defined by the upper tank 12 on the upper side and the lower tank 14 on the lower side.

  The fins 18 are corrugated fins, and are arranged for improving heat exchange efficiency between the gaps, that is, between the flat portions of the adjacent refrigerant tubes 16 and 16.

  The cool storage material container 20 is a flat container filled with a cool storage material, and is disposed in place of the fins 18 in the gap between the flat portions of some adjacent refrigerant pipes 16 and 16. For example, for each of the four gaps, fins 18 are arranged in three of them, and the cold storage material container 20 is arranged in the remaining one. The cool storage material container 20 includes a main body 20a that encloses the cool storage material, a cool storage material that extends from a predetermined position of the main body 20a, protrudes to the outside of the air gap (the front side of the cool storage heat exchanger 10), and forms a charging port for the cool storage material to the main body 20a. And a filling tube 20b.

  In the present embodiment, the refrigerant pipe 16 is divided into a front row and a rear row, the front row is further divided into two groups, and the rear row is further divided into two groups. Therefore, in the entire heat exchanger, as shown in the schematic diagram of FIG. 2, the first and second passes (P1, P2) on the rear side and the third and fourth passes on the front side (P P3 and P4).

  In order to realize such first to fourth paths (P1 to P4), the upper header tank 12 (12a, 12b) and the lower header tank 14 (14a, 14b) are partitioned as follows.

As shown in FIG. 2, the upper front header tank 12a and the upper rear header tank 12b are separated from each other by a partition 28 on the right side in the front-rear direction, but communicate with each other through the communication portion 30 on the left side. . The upper front header tank 12a and the upper rear header tank 12b are each provided with a partition 32 at the center in the front-rear direction.
On the other hand, the lower front header tank 14a and the lower rear header tank 14b are separated from each other by a partition 34 and are not in communication.

  In such a 4-pass system, the refrigerant is supplied by an engine-driven compressor via a condenser and an expansion valve, flows into the upper rear header tank 12b from the refrigerant inlet 24, and is illustrated in the front-rear direction before the partition 32. From the right half, it flows downward through the refrigerant pipe 16 group of the first path P1 and reaches the lower rear header tank 14b. Then, the refrigerant pipe 16 group in the second path P2 flows upward from the left half of the lower rear header tank 14b, reaches the upper rear header tank 12b, and passes from the upper rear header tank 12b to the upper front header tank via the communication portion 30. 12a.

  Then, the refrigerant flows from the left side portion of the upper front header tank 12a through the refrigerant pipe 16 group of the third path P3 downward and reaches the lower front header tank 14a. Then, the refrigerant flows from the right front portion of the lower front header tank 14a through the refrigerant pipe 16 group in the fourth path P4, reaches the upper front header tank 12a, and flows out from the refrigerant outlet 26.

  Here, when the refrigerant flows through the refrigerant pipe 16, the air passing through the gap is cooled through the fins 18. At the same time, cold storage is performed on the cold storage material in the cold storage material container 20 disposed between the flat portions of some of the adjacent refrigerant pipes 16 and 16. Thereafter, when the engine is stopped due to an idle stop or the like and the compressor is stopped, the air is cooled using the cold energy stored in the cold storage material in the cold storage material container 20 to ensure the cooling capacity.

  3 and 4 show the detailed structure of the cold storage material container 20. Hereinafter, of the adjacent refrigerant tubes 16 and 16 in which the cool storage material container 20 is disposed, one refrigerant tube 16 is referred to as “16L” and the other refrigerant tube 16 is referred to as “16R”.

  The cold storage material container 20 includes a first side plate 36 on the side of one refrigerant pipe 16L, a second side plate 38 on the side of the other refrigerant pipe 16R, and a filling port member 40 serving as a charging port for the cold storage material. .

  Each of the first side plate 36 and the second side plate 38 has a frame-like flange portion on the outer peripheral portion, and the flange portions are joined to each other by brazing (fixing), whereby the first side plate 36 and the second side plate 38 are interposed. The main body 20a which encloses the cold storage material is formed. Moreover, filling pipe parts 36b and 38b which form the base of the regenerator material filling pipe 20b are formed in a part of the first side plate 36 and the second side plate 38, and the filling port member 40 is filled with the filling pipe parts 36b and 38b at the tip. The cold storage material filling pipe 20b is formed by brazing and joining the first side plate 36, the second side plate 38, and the filling port member 40 in a state of being sandwiched between them.

  The first side plate 36 has a first flat surface 36a, and is brazed to the one refrigerant pipe 16L at the first flat surface 36a.

  The second side plate 38 has a second flat surface 38a, a plurality of frustoconical convex portions 38c protruding outward from the second flat surface 38a, and the other refrigerant pipe at the top wall of the convex portion 38c. 16R and brazed. An air passage 42 is formed between the second flat surface 38a of the second side plate 38 and the other refrigerant pipe 16R by the height of the convex portion 38c.

  The cool storage material container 20 further includes a corrugated inner fin 44 disposed between the first side plate 36 and the second side plate 38. The inner fin 44 is accommodated in the cool storage material container 20 and brazed to the first flat surface 36 a of the first side plate 36 and the second flat surface 38 a of the second side plate 38.

FIG. 5 shows a detailed structure of the cold storage material filling pipe 20b.
The regenerator material filling pipe 20b is configured, for example, as a circular pipe, and a small diameter part formed by the filling pipe parts 36b and 38b and a large diameter part of the filling port member 40 are connected in communication. Further, the regenerator material filling tube 20b has four slits formed by notching the tip 20c thereof toward the main body 20a, that is, a pair of first slits 46a and 46b, a second slit 48, and a third slit 50. .

  The cold storage material filling pipe 20b is fitted with a flanged plug 52 as a lid member for closing the opening (filling port) at the tip 20c of the cold storage material filling pipe 20b. Further, a step 20d is provided on the inner circumference of the refrigerating material filling tube 20b in the extending direction of the regenerator filling tube 20b so that the flange of the flanged plug 52 abuts on the inner periphery of the filling tube member 40. On the outer periphery of the flanged plug 52, an O-ring 54 is attached as an elastic body that comes into contact with the inner periphery of the cold storage material filling pipe 20 b in order to improve the sealing performance between the inside and outside of the cold storage material container 20.

First, the pair of first slits 46a and 46b will be described.
The pair of first slits 46a and 46b are straight in the juxtaposed direction in which the plurality of refrigerant tubes 16 are arranged in parallel in a state where the cold storage material container 20 is inserted into the gap between the flat portions between the adjacent refrigerant tubes 16L and 16R. It is located in a line. In other words, the pair of first slits 46 a and 46 b are positioned so as to be aligned in the extending direction of the upper header tank 12 or the lower header tank 14 in a state where the cold storage material container 20 is inserted into the gap.

Here, in order to explain the function of the pair of first slits 46a and 46b, a part of the manufacturing process of the cold storage heat exchanger 10 will be described.
The regenerator container 20 in the assembled state in which the inner fins 44 are inserted to assemble the first side plate 36, the second side plate 38, and the filling port member 40 includes the upper header tank 12 and the lower header tank excluding the regenerator container 20. 14, the refrigerant pipe 16, the fins 18, and the like are assembled and inserted into the gap between the flat portions between the adjacent refrigerant pipes 16 </ b> L and 16 </ b> R. Bonded (fixed).

  The step of inserting the assembled cool storage material container 20 into the gap between the flat portions before brazing will be described in detail. Of the cool storage heat exchanger 10 in the assembled state, the opposite side to the side where the cool storage material container 20 is inserted. On the side, that is, the rear side, a given flat plate (not shown) is brought into contact with the end portions of the refrigerant pipes 16L and 16R so as to at least partially block the opening of each gap into which the cool storage material container 20 is inserted. For example, the assembled cold storage heat exchanger 10 may be placed on a flat plate such that the rear surface of the cold storage heat exchanger 10 in the assembled state is in contact with the flat plate.

  On the opposite side of the side where the cold storage material container 20 is inserted, the opening of each gap into which the cold storage material container 20 is inserted is at least partially blocked with a flat plate, thereby inserting the assembled cold storage material container 20 into each gap. In some cases, the end of the regenerator material container 20 abuts against the flat plate, and the protruding amount of the regenerator material filling pipe 20b protruding from the gap is made to coincide between the regenerator material containers 20. That is, the position of the regenerator material filling pipe 20 b in the front-rear direction of the regenerator heat exchanger 10 is made to coincide between the plurality of regenerator containers 20.

  However, in the gap between the flat portions of the adjacent refrigerant pipes 16L and 16R, there is a clearance particularly between the two tanks, the upper header tank 12 and the lower header tank 14, with respect to the cold storage material container 20 to be inserted. If provided, simply inserting the regenerator material container 20 into the gap allows the regenerator material containers 20 to be connected to the lower header tank 14 (or the upper header tank 12) as shown in FIG. ) May cause a misalignment.

  As shown in FIG. 6 (a), when the regenerator containers 20 are brazed and joined to the lower header tank 14 (or the upper header tank 12) while being displaced, Although the filling port 20b is provided at a predetermined position of the regenerator material container 20, in the entire regenerator heat exchanger 10, the vertical position of the regenerator material filling pipe 20b is determined differently for each regenerator material container 20. It becomes difficult. For this reason, on the premise that the regenerator material filling pipe 20b is in a predetermined position, the airtightness inspection, the regenerator material filling, the filling port closing, and the like can be simultaneously performed on the plural regenerator material containers 20. It becomes difficult and decreases production efficiency.

  Further, a gap without the fin 18 (shaded portion C in the figure) is generated between the flat portions of the adjacent refrigerant pipes 16L and 16R, and the gap between the flat portions with the fins 18 originally passes through this gap. Since the evaporating heat is less likely to be taken away due to the detoured air being detoured, the cooling capacity of the cold storage heat exchanger 10 may be reduced.

  Therefore, before brazing and joining, as shown in FIG. 6 (b), the flatness of the adjacent refrigerant tubes 16L and 16R is combined with the positioning of the cold storage material filling tube 20b in the longitudinal direction of the cold storage heat exchanger 10. A pair of first slits 46a and 46b are provided between the cool storage material containers 20 inserted into the gaps between the parts and between the plurality of cool storage material containers 20 with respect to the lower header tank 14 (or the upper header tank 12). Positioning is performed so as to overlap with the juxtaposed direction in which the plurality of refrigerant tubes 16 are juxtaposed while being separated by a predetermined distance in the vertical direction of the cold storage heat exchanger 10.

  Specifically, the positioning of the regenerator container 20 in the vertical direction of the regenerator heat exchanger 10 is specifically determined in the state in which the regenerator container 20 is inserted into the gap between the flat portions of the adjacent refrigerant pipes 16L and 16R, With respect to a fitting body having a length equal to or longer than the distance between the regenerator containers 20 and having an outer shape that can be fitted into the pair of first slits 46a and 46b, the regenerator material filling pipe 20b of each regenerator container 20 has a first shape. Each cold storage material container 20 is moved between the upper header tank 12 and the lower header tank 14 so that the 1 slits 46a and 46b are fitted.

  By performing brazing joining after the positioning of the cold storage material container 20 is completed, the pair of first slits 46a and 46b in the cold storage material filling pipe 20b after the brazing joining are provided between the plurality of cold storage material containers 20. These flat refrigerant pipes 16 are positioned so as to overlap in the juxtaposed direction in which the juxtaposed refrigerant pipes 16 are juxtaposed. That is, in the vertical direction of the cold storage heat exchanger 10, the vertical position of the cold storage material filling pipe 20b is constant. For this reason, in the cool storage material container 20 brazed and joined, a plurality of the cool storage material containers 20 are subjected to airtightness inspection, filling of the cool storage material, and closing of a filling port after filling of the cool storage material. Production efficiency can be improved.

Next, the second slit 48 will be described.
The second slit 48 is formed by notching a portion including the lowest lowermost portion of the tip 20c of the regenerator material filling tube 20b. The 2nd slit 48 fulfill | performs the function as a discharge port which discharges the condensed water produced inside the cool storage material filling pipe 20b outside by gravity. The second slit 48 may be set to a size that allows the condensed water to be easily discharged in consideration of the surface tension of the condensed water.

Next, the third slit 50 will be described.
The third slit 50 is located between the second slit 48 so as to sandwich one of the pair of first slits 46a and 46b along the opening (filling port) at the tip 20c of the cold storage material filling tube 20b. . That is, four slits are formed in the order of the first slit 46a, the second slit 48, the first slit 46b, and the third slit 50 along the filling port at the tip 20c of the cold storage material filling pipe 20b.

  In addition to the pair of first slits 46a and 46b and the second slit 48, the cool storage material filling tube 20b further includes a third slit 50, so that the tip of the cool storage material filling tube 20b is divided into four in the circumferential direction. It becomes easy to bend | fold an inner tube wall inward, and it becomes easy to press the flanged plug 52 from the outside and to fix.

  Four slits of a pair of first slits 46a and 46b, a second slit 48, and a third slit 50 are used to uniformly bend the tube wall between the slits and apply an equal pressing force to the flanged plug 52. In particular, notches may be formed so as to be positioned at equal intervals along the opening at the tip 20c of the cold storage material filling pipe 20b. Thereby, since the plug 52 with a flange deform | transforms equally, the possibility that the sealing performance between the inside and outside of the cool storage material container 20 may be suppressed can be suppressed.

  Further, the four slits of the pair of first slits 46a and 46b, the second slit 48, and the third slit 50 are, as shown in FIG. 5B, a flanged plug from a distance γ from the tip 20c to the step 20d. The subtracted value (γ−α) obtained by subtracting the flange thickness α of 52 is not less than the depth β from the tip 20c of each slit, that is, notched so that β ≦ γ−α. Also good. If the notch is formed with such a relationship, when the tube wall between the slits is bent inward to fix the flanged plug 52, the flanged plug 52 is located far from the bending center. The possibility of excessive pressure being applied to the flanged plug 52 is reduced due to contact with the tube wall, and damage to the flanged plug 52 can be suppressed.

  In the above-described embodiment, the configuration in which the above-described four slits are provided in the cold storage material filling tube 20b has been described, but the configuration is not limited thereto. For example, the regenerator material filling pipe 20b may have a configuration having only a pair of first slits 46a and 46b, or a configuration having a pair of first slits 46a and 46b and a second slit 48.

  The illustrated embodiments are merely examples of the present invention, and the present invention is not limited to those directly described by the described embodiments, and various modifications made by those skilled in the art within the scope of the claims. -Needless to say, it encompasses changes.

  For example, in the above-described embodiment, the configuration shown in FIG. 3 as an example of the cool storage material container 20 has been described. However, the cool storage material container 20 is not limited to such a configuration, and the main body 20a enclosing the cool storage material and As long as it has a cold storage material filling pipe 20b that extends from a predetermined position of the main body 20a and protrudes to the outside of the gap and forms a filling port of the cold storage material with respect to the main body 20a.

DESCRIPTION OF SYMBOLS 10 Cold storage heat exchanger 12 Upper header tank 12a Upper front header tank 12b Upper rear header tank 14 Lower header tank 14a Lower front header tank 14b Lower rear header tank 16 Refrigerant pipe 16L One refrigerant pipe 16R The other refrigerant pipe 18 Fin 20 Cold storage material container 20a Main body 20b Cold storage material filling tube 22 Side plate 24 Refrigerant inlet 26 Refrigerant outlet 46a, 46b A pair of first slits 48 Second slit 50 Third slit 52 Plug with flange

Claims (4)

A plurality of flat refrigerant pipes arranged in parallel at a predetermined interval with the flat portions facing each other between the two tanks and in communication with the two tanks, and some of the adjacent flat refrigerant pipes A cold storage heat exchanger comprising a plurality of cold storage material containers arranged and fixed in the gap between the flat portions and enclosed with a cold storage material,
Each of the plurality of cool storage material containers includes a main body that encloses the cool storage material, and a cool storage material filling pipe that extends from a predetermined position of the main body and protrudes to the outside of the gap to form a filling port of the cool storage material. And
The cold accumulating material packed tube, with the tip of the cold accumulating material packed tube to have a pair of first slits formed by notches formed toward the body, a second slit extending toward the main body from the front end ,
The pair of first slits are positioned so as to overlap in the juxtaposed direction in which the plurality of flat refrigerant tubes are juxtaposed between the plurality of cold storage material containers , and the second slit is formed at the tip A regenerative heat exchanger in which a portion including the lowermost portion is cut out . The cold storage material filling pipe further has a third slit formed by cutting out the tip toward the main body,
2. The regenerative heat exchanger according to claim 1, wherein the third slit is positioned so as to sandwich one of the pair of first slits along the filling port at the tip between the third slit and the second slit . . 4. The regenerative heat exchanger according to claim 2 , wherein the four slits of the pair of first slit, the second slit, and the third slit are located at equal intervals along the filling port at the tip . Among the plurality of flat refrigerant tubes arranged in parallel at a predetermined interval with the flat portions facing each other between the two tanks while communicating with the two tanks, some of the adjacent flat refrigerant tubes A cold storage heat exchanger manufacturing method for arranging and fixing a plurality of cold storage material containers in which a cold storage material is sealed in the gap between the flat portions,
A main body that encloses the cold storage material, and a cold storage material filling pipe that extends from a predetermined position of the main body and protrudes outside the gap and forms a filling port of the cold storage material. A pair of slits formed by notching the tips of the regenerator material-filled tubes toward the main body, and the pair of slits, when the regenerator material container is inserted into the gap, the plurality of flat refrigerant tubes The cold storage material container positioned so as to line up in the juxtaposed direction,
In the state inserted in the said space | gap, the manufacturing method of the cool storage heat exchanger fixed after positioning a pair of said slits so that it may overlap in the said juxtaposition direction between these cool storage material containers.