JP2012042167A - Evaporator with cooling storage function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an evaporator with a cooling storage function capable of suppressing an increase in ventilation resistance while suppressing the deterioration of cooling performance.SOLUTION: The evaporator with a cooling storage function includes a cooling storage material container 16 arranged partially in ventilation gaps 15 of all the ventilation gaps 15 each of which is formed adjacently between refrigerant circulation pipes 13 and fins 17 arranged in the ventilation gaps 15 at both ends of each cooling storage material container 16. Each of the cooling storage material container 16 includes a container body 21 connected to each of the refrigerant circulation pipes 13 and an outward protruded portion 22 which is continuous to a front edge of the container body 21 and extended forward beyond each of the refrigerant circulation pipes 13. Each of the fins 17 includes a fin body 31 joined to each of the refrigerant circulation pipes 13 and an outward protruded portion 32 which is continuous to a front edge of the fin body 31 and extended forward beyond each of the refrigerant circulation pipes 13. The outward protruded portion 32 of each of the fins 17 is brazed to both side faces of the outward protruded portion 22 of the cooling storage material container 16.

Description

  The present invention relates to an evaporator with a cold storage function used in a car air conditioner of a vehicle that temporarily stops an engine that is a drive source of a compressor when the vehicle is stopped.

  In this specification and claims, the top and bottom of FIG.

  In recent years, automobiles have been proposed that automatically stop the engine when the vehicle stops, such as when waiting for a signal, for the purpose of environmental protection or improvement in automobile fuel efficiency.

  By the way, in a normal car air conditioner, when the engine is stopped, the compressor using the engine as a driving source stops, so that the refrigerant is not supplied to the evaporator, and the cooling capacity is rapidly reduced.

  Therefore, in order to solve such a problem, the evaporator is provided with a cold storage function, and when the engine stops and the compressor stops, the interior of the vehicle can be cooled using the cold energy stored in the evaporator. It is considered.

  As an evaporator with a cold storage function, a pair of refrigerant headers arranged at a distance from each other, and a gap between the two refrigerant headers, with the width direction facing in the front-rear direction and the length of the refrigerant header part in the length direction. And a plurality of flat refrigerant flow pipes whose both ends are respectively connected to both refrigerant header parts, and are arranged with the width direction directed in the front-rear direction and fixed to one side of the refrigerant flow pipe And a hollow regenerator container in which a regenerator material is enclosed, and a plurality of sets of refrigerant circulation pipes and a regenerator container are formed in which the dimensions in the thickness direction of the regenerator container are equal throughout. Are arranged at intervals, and a portion between adjacent sets of the refrigerant circulation pipe and the cool storage material container is formed as a ventilation gap, and fins are arranged in the ventilation gap to join the refrigerant circulation pipe and the cold storage material container. The And those which have been proposed (see Patent Document 1).

  According to the evaporator with a cold storage function described in Patent Document 1, cold heat is stored in the cold storage material in the cold storage material container by the low-temperature refrigerant flowing through the refrigerant circulation pipe.

  However, in the evaporator with a cool storage function described in Patent Document 1, when the effective core area is the same, the number of refrigerant circulation pipes is reduced as compared with a normal evaporator having no cool storage material container, and the cooling performance is lowered. There is a problem.

  In order to solve the above-mentioned problem of the evaporator with a cold storage function described in Patent Document 1, the present applicant firstly has a plurality of flat refrigerant circulation pipe portions extending in the vertical direction and having the width direction facing the ventilation direction. Ventilation gaps that are arranged in parallel with a space between each other, have ventilation gaps formed between adjacent refrigerant flow pipe sections, and are at least some ventilation gaps among all ventilation gaps and are not adjacent to each other. In addition, an evaporator with a cold storage function in which a cold storage material container in which a cold storage material is enclosed is disposed and fins are disposed in the remaining ventilation gap has been proposed (see Patent Document 2).

  However, in the evaporator with the cold storage function described in Patent Document 2, if the amount of the cold storage material enclosed in the cold storage material container is increased without changing the dimensions of the heat exchange core part for the purpose of improving the cold storage performance, the cold storage material It is effective to increase the number of containers or increase the overall container height of the regenerator container, but in either case, the air passage area of the ventilation gap is reduced and the ventilation resistance is increased. There is a problem.

Japanese Patent No. 4043776 JP 2010-149814 A

  An object of the present invention is to provide an evaporator with a cool storage function that can suppress the increase in ventilation resistance as compared with the evaporator with a cool storage function described in Patent Document 2 after solving the above problems and suppressing a decrease in cooling performance. It is in.

  In order to achieve the above object, the present invention comprises the following aspects.

1) A plurality of flat refrigerant flow pipe portions extending in the vertical direction and having a width direction facing the ventilation direction are arranged in parallel with a space between each other, and a ventilation gap is provided between adjacent refrigerant flow pipe portions. An evaporator with a cool storage function in which a cool storage material container in which a cool storage material is sealed is disposed in a part of a plurality of ventilation gaps among all the ventilation gaps, and fins are disposed in the remaining ventilation gaps,
The cool storage material container is joined to the refrigerant flow pipe part, and the outwardly projecting part is provided so as to extend outward from the refrigerant flow pipe part while continuing to the leeward side edge of the container main body part. The fins arranged in the ventilation gap adjacent to the ventilation gap where the cool storage material container is arranged are connected to the fin body part joined to the refrigerant flow pipe part and the leeward side edge part of the fin body part And an outward projecting portion provided so as to project outward from the refrigerant circulation pipe portion in the ventilation direction, and the fins project outwardly on at least one of the both side surfaces of the outward projecting portion of the cold storage material container. Evaporator with cool storage function that is in contact with the part.

  2) The above 1) description, wherein fins are respectively arranged in the ventilation gaps on both sides of the ventilation gap where the cold storage material container is arranged, and the outward projections of the fin are in contact with both side surfaces of the outward projection part of the cold storage material container. Evaporator with cold storage function.

  3) The outwardly projecting portion of the cold storage material container bulges outward in the arrangement direction of the refrigerant flow pipe portion with respect to the container main body over the entire length in the vertical direction, and the dimension in the thickness direction of the outwardly extending portion is the container. The evaporator with a cold storage function according to the above 1) or 2), which is larger than the dimension in the thickness direction of the main body.

  4) The outwardly projecting portion of the regenerator container is provided with a base having a thickness direction dimension equal to the thickness direction dimension of the container main body portion, and a vertical space in the base portion and a refrigerant with respect to the base portion. The evaporator with a cold storage function according to the above 1) or 2), comprising a plurality of protrusions bulging outward in the arrangement direction of the flow pipe portions.

  5) The evaporator with a cold storage function according to any one of 1) to 4), wherein the outwardly protruding portion of the fin is brazed to the outwardly protruding portion of the cold storage material container.

  6) The regenerator container is formed of two metal plates whose peripheral portions are joined to each other, and at least one of the two metal plates is bulged outwardly in the left-right direction so that the container main body and the outer The evaporator with a cold storage function according to any one of 1) to 5) above, wherein a side projecting portion is provided.

  7) The evaporator with a cool storage function according to any one of the above 1) to 6), wherein an inner fin extending from the container main body portion to the outward projecting portion is disposed in the cool storage material container.

  8) The evaporator with a cool storage function according to 7) above, wherein the inner fin has a corrugated shape, and includes a wave crest extending in the ventilation direction, a wave bottom extending in the ventilation direction, and a connecting portion connecting the wave crest and the wave bottom.

  9) The inner fin is offset, and a plurality of corrugated strips having a wave crest extending in the ventilation direction, a wave bottom extending in the ventilation direction, and a connecting portion connecting the wave crest and the wave bottom are arranged in the ventilation direction. The evaporator with a cold storage function according to 7) above, wherein the wave crests and the wave crests of two strips adjacent to each other in the ventilation direction are displaced in the vertical direction.

  10) The container main body portion of the cold storage material container is brazed to the refrigerant flow pipe portion, and the groove is formed in the portion brazed to the refrigerant flow pipe portion on the outer surface of the container main body portion of the cold storage material container. The evaporator with a cool storage function according to any one of 1) to 9).

  11) The evaporator with a cool storage function according to 10) above, wherein the grooves formed in a portion brazed to the refrigerant flow pipe portion on the outer surface of the container main body portion of the cool storage material container have a lattice shape.

  12) It is provided with a set of a plurality of flat refrigerant flow pipe portions arranged in the width direction in the ventilation direction and spaced from each other in the ventilation direction. The evaporator with a cold storage function according to any one of the above 1) to 11), which is disposed so as to straddle the refrigerant flow pipe part and joined to the refrigerant flow pipe part.

  According to the evaporator with a cold storage function of 1) to 12) above, the cold storage material container is connected to the container main body part joined to the refrigerant flow pipe part and the leeward side edge part of the container main body part and more than the refrigerant flow pipe part. Since it has an outward projecting portion provided so as to project outward in the ventilation direction, the amount of the cool storage material that can be enclosed in one cool storage material container is determined as the cool storage material of the evaporator with the cool storage function described in Patent Document 2. Compared to the container, it can be increased by the outwardly protruding portion. Therefore, even if the amount of cool storage material enclosed in the cool storage material container is increased without changing the dimensions of the heat exchange core, the number of cool storage material containers can be increased or the overall height of the cool storage material container can be increased. It is not necessary to make it higher, and it is possible to suppress a decrease in the air passage area of the ventilation gap as compared with the evaporator with a cold storage function described in Patent Document 2, and it is possible to suppress an increase in ventilation resistance.

  In addition, a plurality of flat refrigerant flow pipe portions that extend in the vertical direction and whose width direction faces the ventilation direction are arranged in parallel with a space between each other, and a ventilation gap is provided between adjacent refrigerant flow pipe portions. A regenerator container filled with a regenerator material is arranged in a plurality of ventilation gaps that are not adjacent to each other, and fins are arranged in the remaining ventilation gaps. Therefore, even if the effective core area is equal to that of the evaporator with the cold storage function described in Patent Document 1, the number of refrigerant circulation pipe portions does not decrease. Therefore, it is possible to suppress a decrease in cooling performance.

  Furthermore, the fins arranged in the ventilation gap adjacent to the ventilation gap where the cool storage material container is arranged are connected to the fin body part joined to the refrigerant circulation pipe part, the leeward side edge part of the fin body part, and the refrigerant circulation pipe And an outwardly extending portion provided so as to protrude outwardly from the ventilation direction, and the outwardly extending portion of the fin is in contact with at least one of both sides of the outwardly extending portion of the cool storage material container. Therefore, when storing the cold heat in the regenerator material in the regenerator container while the compressor is operating, the regenerator material is cooled by the refrigerant flowing in the refrigerant distribution pipe part and flows through the ventilation gap. Since it cools with the air which the coming temperature became low, a cool storage material can be cooled efficiently and the cool storage performance improves. On the other hand, when the engine stops and the compressor stops, the cold heat of the cool storage material in the container body of the cool storage material container is transmitted to the air passing through the adjacent ventilation gap via the refrigerant flow pipes on both sides. The cool heat of the regenerator material in the outwardly projecting portion of the regenerator container is transmitted to the air passing through the ventilation gap through the fins joined to at least one side surface from the outwardly projecting portion, so that it is allowed to cool. Will improve.

  According to the evaporator with the cold storage function of 2) above, the cold storage performance when storing cold heat in the cold storage material in the cold storage material container when the compressor is operating, and the cold storage material container when the compressor is stopped All of the cooling performance when cooling heat is released from the cold storage material is further improved.

  According to the evaporator with a cold storage function of 3) and 4) above, the amount of the cold storage material in the cold storage container can be further increased.

  According to the evaporator with a cold storage function of 4) above, the heat transfer area between the both side walls of the outwardly protruding portion of the cold storage material container and the cold storage material in the outwardly extending portion increases.

  According to the evaporator with a cool storage function of 6) above, a cool storage material container can be made relatively easily.

  According to the evaporator with a cold storage function of 7) above, the inner fin from the container main body part to the outwardly projecting part is arranged in the cold storage material container, so the cold storage material in the outwardly projecting part is also in the refrigerant circulation pipe part. It is quickly cooled by the refrigerant flowing through. Therefore, the cool storage material in the cool storage material container can be efficiently cooled.

  According to the evaporator with a cool storage function of 8) and 9) above, the cool storage material in the outward projecting portion is more effectively cooled by the coolant flowing in the coolant circulation pipe portion.

  According to the evaporator with a cold storage function of the above 10) and 11), the molten flux and the brazing filler metal flow in the groove and easily reach the entire space between the container body portion of the cold storage material container and the refrigerant circulation pipe portion. The brazing property between the container body portion of the cold storage material container and the refrigerant flow pipe portion is improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. It is an AA line expanded sectional view of FIG. It is a disassembled perspective view which shows the cool storage material container of the evaporator with a cool storage function of FIG. It is a disassembled perspective view which shows the 1st modification of a cool storage material container. It is a disassembled perspective view which shows the 2nd modification of a cool storage material container.

  Embodiments of the present invention will be described below with reference to the drawings. In addition, the same code | symbol is attached | subjected to the same part and the same thing through all drawings, and the overlapping description is abbreviate | omitted.

  In the following description, the downstream side in the ventilation direction (the direction indicated by the arrow X in FIGS. 1 and 2) is the front, and the opposite side is the rear. Further, the left and right when viewing the rear from the front, that is, the left and right in FIG.

  Furthermore, in the following description, the term “aluminum” includes aluminum alloys in addition to pure aluminum.

  FIG. 1 shows the overall configuration of an evaporator with a cold storage function according to the present invention, and FIGS. 2 and 3 show the configuration of the main part thereof.

  In FIG. 1, an evaporator with a cold storage function (1) includes an aluminum first header tank (2) and an aluminum second header tank (3) extending in the horizontal direction and spaced apart in the vertical direction, and both headers. And a heat exchange core part (4) provided between the tanks (2) and (3).

  The first header tank (2) is integrated with the refrigerant inlet header (5) located on the front side (downstream in the ventilation direction) and the refrigerant inlet header (5) located on the rear side (upstream in the ventilation direction). And a refrigerant outlet header portion (6). A refrigerant inlet (7) is provided at the right end of the refrigerant inlet header (5), and a refrigerant outlet (8) is provided at the right end of the refrigerant outlet header (6). The second header tank (3) includes a first intermediate header portion (9) located on the front side and a second intermediate header portion (11) located on the rear side and integrated with the first intermediate header portion (9). And. The first intermediate header portion (9) and the second intermediate header portion (11) of the second header tank (3) are joined across the right end portions of the intermediate header portions (9) and (11), and The inside is communicated via a communication member (12) that forms a passage.

  As shown in FIG. 1 and FIG. 2, the heat exchange core (4) has a plurality of extruded aluminum flat refrigerant flow pipes that extend in the vertical direction and whose width direction faces the ventilation direction (front-rear direction). 13) (Refrigerant distribution pipes) are arranged in parallel with a gap in the left-right direction. That is, a plurality of sets (14) composed of a plurality of refrigerant distribution pipes (13) arranged at intervals in the front-rear direction, here two refrigerant distribution pipes (13), are arranged at intervals in the left-right direction. A ventilation gap (15) is formed between adjacent ones of the group (14) consisting of (13). The upper end of the front refrigerant flow pipe (13) is connected to the refrigerant inlet header (5), and the lower end is connected to the first intermediate header (9). The upper end of the rear refrigerant flow pipe (13) is connected to the refrigerant outlet header (6), and the lower end is connected to the second intermediate header (11).

  An aluminum regenerator container (16) in which a regenerator material (not shown) is sealed in a part of a plurality of air gaps (15) and not adjacent to each other among all the air gaps (15). Further, it is arranged so as to straddle both the front and rear refrigerant flow pipes (13). Further, in the remaining ventilation gap (15), corrugated outer fins (17) made of an aluminum brazing sheet having a brazing filler metal layer on both sides are disposed so as to straddle both the front and rear refrigerant flow pipes (13). The front and rear refrigerant flow pipes (13) constituting the pair (14) on both the left and right sides forming (15) are brazed. That is, the outer fins (17) are arranged in the ventilation gaps (15) on both sides of the ventilation gap (15) in which the cool storage material container (16) is arranged. In addition, outer fins (17) made of an aluminum brazing sheet having a brazing filler metal layer on both sides are also arranged outside the set (14) of the refrigerant flow pipes (13) at the left and right ends, and the front and rear refrigerant flow pipes (13) are arranged. An aluminum side plate (18) is disposed outside the outer fins (17) at both the left and right ends and brazed to the outer fins (17).

  As shown in FIGS. 2 and 3, the regenerator container (16) is located behind the front side edge of the front refrigerant flow pipe (13) and the refrigerant flow pipes (13) before and after each set (14). The container body part (21) brazed to the front side edge of the container body part (21) and provided so as to protrude forward (outside in the ventilation direction) from the front side edge of the front refrigerant flow pipe (13) And an outwardly projecting portion (22). The thickness direction (left-right direction) dimension of the container main-body part (21) of the cool storage material container (16) is equal to the whole. The outwardly projecting portion (22) of the cold storage material container (16) has the vertical dimension equal to the vertical dimension of the container main body (21) and the horizontal dimension of the container main body (21) in the horizontal direction. And bulges outward in the left-right direction (outward in the direction in which the refrigerant flow pipes (13) are arranged) with respect to the container body (21). The lateral dimension of the outward projecting portion (22) is equal to the pipe height that is the dimension of the refrigerant flow pipe (13) in the thickness direction (lateral direction) of the container body (21) of the regenerator container (16). The height is equal to the height of the horizontal dimension. As the cool storage material filled in the cool storage material container (16), for example, a water-based, paraffin-based or the like whose freezing point is adjusted to about 3 to 10 ° C is used. Further, the amount of the cold storage material filled in the cold storage material container (16) is preferably set to an amount that fills the entire cold storage material container (16) up to the upper end.

  The cold storage material container (16) is formed by pressing an aluminum brazing sheet having a brazing filler metal layer on both sides thereof, and two substantially vertical rectangular aluminum plates having peripheral edges brazed to each other ( 24) Consists of (25). A portion of the right aluminum plate (24) constituting the cool storage material container (16) forming the container main body portion (21), that is, most of the portion excluding the front side portion, is bulged to the right. (26) is provided, and the portion that also forms the outwardly projecting portion (22), that is, the front side portion, is connected to the front side of the first bulging portion (26) and bulges to the right, and the first bulging portion A second bulge portion (27) having a bulge height higher than that of the portion (26) is provided over the entire length in the vertical direction. In addition, lattice-shaped grooves (28) are formed in the portion where the refrigerant flow pipe (13) is brazed on the outer surface of the portion of the right aluminum plate (24) that forms the container body (21). The left aluminum plate (25) constituting the cold storage material container (16) is the right aluminum plate (24) reversed in the left-right direction, and the same parts are denoted by the same reference numerals.

  The two aluminum plates (24) and (25) are brazed in combination so that the openings of the first and second bulge portions (26) and (27) face each other, thereby the cold storage material container (16 ) Is formed. Here, the container body part (21) is formed by the first bulge part (26) of both aluminum plates (24) and (25), and the outwardly projecting part (22) is formed by the second bulge part (27). Has been.

  Inside the cool storage material container (16), aluminum inner fins (29) extending from the rear end of the container main body (21) to the front end of the outwardly projecting portion (22) are arranged over substantially the entire vertical direction. ing. The inner fin (29) has a corrugated shape including a wave crest extending in the front-rear direction, a wave bottom extending in the front-rear direction, and a connecting portion connecting the wave crest and the wave bottom. The fins of the inner fins (29) have the same height, and are brazed to the inner surfaces of the left and right side walls of the container main body (21) of the cold storage material container (16).

  The outer fin (17) has a corrugated shape including a wave crest extending in the front-rear direction, a wave bottom extending in the front-rear direction, and a connecting portion connecting the wave crest and the wave bottom. The outer fin (17) is located behind the front edge of the front refrigerant flow pipe (13) and is finned to the refrigerant flow pipe (13) before and after each set (14) by the fin main body (31) And an outwardly projecting portion (32) provided to extend forward (outside in the ventilation direction) from the front edge of the rear refrigerant flow pipe (13) while continuing to the front edge of the fin body (31). I have. Then, the outwardly projecting portion (32) of the outer fin (17) disposed in the ventilation gap (15) on both sides of the ventilation gap (15) where the cold storage material container (16) is arranged, the cold storage material container (16) Are brazed to the left and right side surfaces of the outwardly projecting portion (22). An aluminum spacer (33) is disposed between the outwardly projecting portions (32) of the adjacent outer fins (17), and is brazed to the outwardly projecting portion (32).

  The evaporator with a cold storage function (1) described above includes a compressor that uses a vehicle engine as a drive source, a condenser that cools the refrigerant discharged from the compressor (refrigerant cooler), and an expansion valve that depressurizes the refrigerant that has passed through the condenser ( A refrigeration cycle is configured together with a decompressor, and is mounted as a car air conditioner on a vehicle, such as an automobile, that temporarily stops an engine that is a drive source of a compressor when the vehicle stops. When the compressor is operating, the low-pressure gas-liquid mixed-phase two-phase refrigerant compressed by the compressor and passed through the condenser and the expansion valve passes through the refrigerant inlet (7) and has an evaporator with a cold storage function ( The refrigerant enters the refrigerant inlet header part (5) of 1) and flows into the first intermediate header part (9) through the front all refrigerant circulation pipe (13). The refrigerant that has entered the first intermediate header portion (9) passes through the communication member (12), enters the second intermediate header portion (11), and then passes through the rear refrigerant flow pipe (13). It flows into the outlet header (6) and flows out from the refrigerant outlet (8). While the refrigerant flows in the refrigerant flow pipe (13), heat exchange is performed with the air passing through the ventilation gap (15), and the refrigerant flows out in a gas phase.

  At this time, the cool storage material in the container main body (21) of the cool storage material container (16) is cooled by the refrigerant flowing in the refrigerant flow pipe (13), and the cooled cool storage material in the container main body (21) Is transferred to the cold storage material in the outwardly projecting portion (22) of the cold storage material container (16) through the inner fin (29), and is further cooled by the air cooled by the refrigerant through the ventilation gap (15). The cold storage material in the outward projecting portion (22) of the cold storage material container (16) is cooled, and as a result, cold heat is stored in the entire cold storage material in the cold storage material container (16).

  When the compressor is stopped, the cold heat of the cold storage material in the container main body portion (21) and the outward projecting portion (22) of the cold storage material container (16) is transferred to the container main body portion via the inner fin (29). (21) and the left and right side walls of the outward projection (22). The cold heat transferred to the left and right side walls of the container main body (21) passes through the fin main body (31) of the outer fin (17) brazed to the refrigerant flow pipe (13) and the refrigerant flow pipe (13). To the air passing through the ventilation gap (15). The cold heat transmitted to the left and right side walls of the outward projecting part (22) passes through the outer projecting part (32) of the outer fin (17) brazed to the left and right side surfaces of the outer projecting part (22). It is transmitted to the air passing through the ventilation gap (15). Therefore, even if the temperature of the wind that has passed through the evaporator (1) rises, the wind is cooled, so that a rapid decrease in the cooling capacity is prevented.

  In the above embodiment, the refrigerant flow pipe of the evaporator with a cold storage function is formed in a flat hollow body formed by brazing the peripheral portions with two aluminum plates facing each other, as in the case of a so-called laminated evaporator. It may be provided. That is, it may be formed in a bulging shape between both aluminum plates constituting the flat hollow body.

  4 and 5 show modifications of the cold storage material container.

  In the case of the cool storage material container (40) shown in FIG. 4, it is connected to the front side edge of the container body (21) and extends forward (outside in the ventilation direction) from the front side edge of the front refrigerant flow pipe (13). The outward projecting portion (41) includes a base (42) whose vertical and horizontal dimensions are equal to the vertical and horizontal dimensions of the container body (21), and a vertical direction on the base (42). And a plurality of projecting portions (43) bulging outward in the left-right direction with respect to the base portion (42). The protrusion (43) has an oval shape, and is inclined downward toward the front as viewed from the outside in the left-right direction. The horizontal dimension of the projecting part (43) of the outward projecting part (41) is the same as the horizontal dimension of the refrigerant flow pipe (13), and the container body part (21) of the regenerator container (40). ) And the horizontal dimension plus the height.

  The outwardly projecting portion (32) of the outer fin (17) is brazed to the projecting end surface of the projecting portion (43) of the outwardly projecting portion (41).

  A portion of the right aluminum plate (24) constituting the cool storage material container (40) forming the container main body portion (21), that is, most of the portion excluding the front portion, is bulged to the right. (26) is provided. Further, the portion of the right aluminum plate (24) forming the outwardly projecting portion (41), that is, the front side portion, is connected to the front side of the first bulging portion (26) and bulges to the right and the first bulging portion. A second bulge portion (44) having a bulge height equal to the bulge portion (26) is provided over the entire length in the vertical direction, and the second bulge portion is formed on the bulge top wall of the second bulge portion (44). A plurality of third bulges (45) bulging to the right with respect to the part (44) are provided at intervals in the vertical direction by deforming the bulge top wall. The left aluminum plate (25) constituting the cold storage material container (40) is the right aluminum plate (24) reversed in the left-right direction, and the same parts are denoted by the same reference numerals.

  Other configurations are the same as those of the cold storage material container (16) of the above-described embodiment.

  In the case of the regenerator container (50) shown in FIG. 5, an offset aluminum inner fin (51) extending from the rear end portion of the container main body portion (21) to the front end portion of the outwardly projecting portion (22) is provided therein. ) Are arranged over substantially the entire vertical direction. The inner fin (51) includes a wave crest (52a) extending in the front-rear direction (ventilation direction), a wave bottom (52b) extending in the front-rear direction, and a connecting portion (52c) connecting the wave crest (52a) and the wave bottom (52b). ) Having a plurality of wavy strips (52) arranged in the ventilation direction and integrally connected to each other, and the wave crests of two strips (52) adjacent in the front-rear direction ( 52a) and the wave bottom portions (52b) are displaced in the vertical direction.

  Other configurations are the same as those of the cold storage material container (16) of the above-described embodiment.

  The evaporator with a cold storage function according to the present invention is suitably used in a refrigeration cycle constituting a car air conditioner for a vehicle that temporarily stops an engine that is a drive source of a compressor when the vehicle is stopped.

(1): Evaporator with cool storage function
(13): Refrigerant distribution pipe (refrigerant distribution pipe)
(14): A set consisting of front and rear refrigerant distribution pipes
(15): Ventilation gap
(16) (40) (50): Cold storage container
(17): Outer fin
(21): Container body
(22) (41): Outward projecting part
(24) (25): Aluminum plate (metal plate)
(26) (27) (44) (45): bulge
(28): Groove
(29) (51): Inner fin
(31): Fin body
(32): Outward projecting part
(42): Base
(43): Projection
(52): Wavy strip
(52a): Wave peak
(52b): Wave bottom
(52c): Connection part

Claims (12)

A plurality of flat refrigerant flow pipe parts that extend in the vertical direction and whose width direction faces the ventilation direction are arranged in parallel at intervals, and a ventilation gap is formed between adjacent refrigerant flow pipe parts. And an evaporator with a cool storage function in which a cool storage material container in which a cool storage material is enclosed is disposed in a part of a plurality of the ventilation gaps, and fins are disposed in the remaining ventilation gaps,
The cool storage material container is joined to the refrigerant flow pipe part, and the outwardly projecting part is provided so as to extend outward from the refrigerant flow pipe part while continuing to the leeward side edge of the container main body part. The fins arranged in the ventilation gap adjacent to the ventilation gap where the cool storage material container is arranged are connected to the fin body part joined to the refrigerant flow pipe part and the leeward side edge part of the fin body part And an outward projecting portion provided so as to project outward from the refrigerant circulation pipe portion in the ventilation direction, and the fins project outwardly on at least one of the both side surfaces of the outward projecting portion of the cold storage material container. Evaporator with cool storage function that is in contact with the part. The cold storage according to claim 1, wherein fins are respectively disposed in the ventilation gaps on both sides of the ventilation gap in which the cold storage material container is disposed, and the outwardly protruding portions of the fins are in contact with both side surfaces of the outwardly protruding portion of the cold storage material container. Evaporator with function. The outwardly projecting portion of the cold storage material container bulges outward in the direction in which the refrigerant flow pipes are aligned with respect to the container main body over the entire length in the vertical direction, and the dimension in the thickness direction of the outwardly projecting portion is the container main body. The evaporator with a cool storage function according to claim 1 or 2, which is larger than a dimension in the thickness direction. The outwardly projecting portion of the cold storage material container has a base portion whose dimension in the thickness direction is equal to the dimension in the thickness direction of the container main body portion, and is provided with a space in the vertical direction at the base portion and is a refrigerant flow pipe with respect to the base portion The evaporator with a cool storage function according to claim 1 or 2, comprising a plurality of protrusions bulging outward in the arrangement direction of the parts. The evaporator with a cool storage function according to any one of claims 1 to 4, wherein an outward projecting portion of the fin is brazed to an outward projecting portion of the cool storage material container. The cold storage container is formed by two metal plates whose peripheral portions are joined to each other, and at least one of the two metal plates bulges outward in the left-right direction, thereby extending the container main body and the outward projection. The evaporator with a cool storage function in any one of Claims 1-5 in which the part is provided. The evaporator with a cool storage function according to any one of claims 1 to 6, wherein an inner fin extending from the container main body portion to the outward projecting portion is disposed in the cool storage material container. The evaporator with a cool storage function according to claim 7, wherein the inner fin has a corrugated shape, and includes a wave crest portion extending in the ventilation direction, a wave bottom portion extending in the ventilation direction, and a connecting portion connecting the wave crest portion and the wave bottom portion. The inner fin has an offset shape, a wave crest extending in the ventilation direction, a wave bottom extending in the ventilation direction, and a plurality of wavy strips connecting the wave crest and the wave bottom are arranged in the ventilation direction and mutually The evaporator with a cool storage function according to claim 7, wherein the crest portions and the crest portions of two strips adjacent to each other in the ventilation direction are displaced in the vertical direction. The container main body portion of the cold storage material container is brazed to the refrigerant flow pipe portion, and a groove is formed in a portion brazed to the refrigerant flow pipe portion on the outer surface of the container main body portion of the cold storage material container. The evaporator with a cool storage function in any one of -9. The evaporator with a cool storage function according to claim 10, wherein grooves formed in a portion brazed to the refrigerant flow pipe portion on the outer surface of the container main body portion of the cool storage material container are in a lattice shape. It is provided with a set of a plurality of flat refrigerant flow pipe portions arranged in the width direction in the ventilation direction and spaced apart in the ventilation direction. The evaporator with a cool storage function according to any one of claims 1 to 11, wherein the evaporator is disposed so as to straddle the pipe part and joined to the refrigerant flow pipe part.

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