JP2014055736A - Heat exchanger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve bondability between a second partition member and a header tank in a heat exchanger including a first partition member dividing an internal space of the header tank into a first space and a second space in a tube longitudinal direction, and the second partition member dividing one of upper and lower spaces into two in a tube stacking direction.SOLUTION: A first separator 54 is put between both sides of at least one of a header tank 2 or 3 and an intermediate plate member 52 in a stacking direction of tubes 9. This can suppress the first separator 54 from falling in the stacking direction of the tubes 9 during assembly or bonding, so that bondability between the first separator 54 and the header tank 2 or 3 can be improved.

Description

  The present invention relates to a heat exchanger for exchanging heat between an external fluid flowing outside and a heat medium.

  Conventionally, a first partition member that divides the internal space of the header tank into two in the tube longitudinal direction into an upper space and a lower space, and one of the upper space and the lower space is divided into two in the tube stacking direction. A refrigerant evaporator (heat exchanger) including a second partition member to be divided has been proposed (see, for example, Patent Document 1). According to such a refrigerant evaporator, it is located farthest from the refrigerant inlet and the refrigerant outlet and is arranged side by side in the flow direction of the blown air to constitute one path and the flow direction of the refrigerant in the tube It is possible to improve the cooling performance by equalizing the amount of refrigerant flowing in the tubes of the two tube groups having the same direction.

JP 2012-32129 A

  In the heat exchanger described in Patent Document 1, the second partition member is joined by brazing while being in contact with the first partition member on one side. For this reason, at the time of assembly or brazing, the second partition member may fall to the opposite side of the first partition member in the tube stacking direction and may not be brazed to the header tank (including the first partition member). In this case, there is a problem that the effect of improving the cooling performance described above cannot be obtained because the refrigerant shortcuts the passage formed in the tank.

  In view of the above, the present invention provides a first partition member that divides the internal space of the header tank into two in the longitudinal direction of the tube into a first space and a second space, and one of the upper space and the lower space. In a heat exchanger provided with the 2nd partition member which divides space into two in the tube lamination direction, it aims at improving the joint nature of the 2nd partition member and a header tank.

  In order to achieve the above object, according to the first aspect of the present invention, a core portion (4) configured by stacking a plurality of tubes (9) through which a heat medium flows and at least one of the plurality of tubes (9) are provided. A header tank (2, 3) connected to the end and configured to collect or distribute the heat medium flowing through the plurality of tubes (9). The header tank (2, 3) is connected to the header tank (2, 3). A first partition member (52) that divides the internal space into two, a first space (17A) and a second space (17B), in the longitudinal direction of the tube (9), and the first space (17A) and the second space A second partition member (54) that divides at least one of (17B) into two in the stacking direction of the tube (9), and the second partition member (54) is a header tank (2, 3). And at least one of the first partition members (52) Characterized in that it is sandwiched from both sides in the stacking direction of the tube (9).

  According to this, the second partition member (54) is sandwiched from both sides in the stacking direction of the tube (9) by at least one of the header tank (2, 3) and the first partition member (52), so that when assembled. In addition, at the time of joining, the second partition member (54) can be prevented from falling in the stacking direction of the tubes (9). Therefore, it becomes possible to improve the joining property between the second partition member (54) and the header tank (2, 3).

  In addition, in the first, fifth, and eighth aspects, “sandwiched from both sides in the stacking direction of the tube (9)” means that both side surfaces in the stacking direction of the tube (9) in the second partition member (54) are the entire surface. It does not mean that the tube (9) is sandwiched from both sides in the stacking direction, and at least part of both side surfaces in the stacking direction of the tube (9) in the second partition member (54) 9) means that it is sandwiched from both sides in the stacking direction.

  In addition, “connected to the through hole (521)” in claim 10 means that the slit (523) is connected to the through hole (521).

  In addition, the code | symbol in the bracket | parenthesis of each means described in this column and the claim shows the correspondence with the specific means as described in embodiment mentioned later.

It is a block diagram of the refrigerating cycle apparatus which comprises the vehicle air conditioner in 1st Embodiment. It is a perspective view which shows the evaporator which concerns on 1st Embodiment. It is III-III sectional drawing of FIG. It is IV-IV sectional drawing of FIG. It is explanatory drawing which shows the flow of the refrigerant | coolant in the evaporator of FIG. It is a disassembled perspective view which shows the header tank of the evaporator which concerns on 1st Embodiment. It is an enlarged view which shows the 1st separator vicinity in the header tank of FIG. It is a disassembled perspective view which shows the header tank of the evaporator which concerns on 2nd Embodiment. It is a fragmentary sectional view which shows the header tank of the evaporator which concerns on 2nd Embodiment. It is a disassembled perspective view which shows the header tank of the evaporator which concerns on 3rd Embodiment. It is a fragmentary sectional view showing the header tank of the evaporator concerning a 3rd embodiment. It is a disassembled sectional view which shows the header tank of the evaporator which concerns on 4th Embodiment. It is an exploded sectional view showing the header tank of the evaporator concerning a 5th embodiment. It is a disassembled perspective view which shows the header tank of the evaporator which concerns on 6th Embodiment. It is a fragmentary sectional view showing the header tank of the evaporator concerning a 7th embodiment. It is a disassembled sectional view which shows the header tank of the evaporator which concerns on 8th Embodiment. It is a disassembled perspective view which shows the header tank of the evaporator which concerns on 9th Embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following embodiments, the same or equivalent parts are denoted by the same reference numerals in the drawings.

(First embodiment)
1st Embodiment of this invention is described based on FIGS. In the present embodiment, the heat exchanger of the present invention is applied to the evaporator 1 in the refrigeration cycle apparatus 100 constituting the vehicle air conditioner.

  The structure of the refrigerating cycle apparatus which comprises the vehicle air conditioner used as 1st Embodiment of this invention is shown in FIG. A refrigeration cycle apparatus 100 constituting the air conditioner includes a compressor 101, a radiator 102, a decompressor 103, and an evaporator (evaporator) 1. These components are connected in an annular shape by piping and constitute a refrigerant circulation path.

  The compressor 101 is driven by an internal combustion engine (or an electric motor or the like) that is a power source 104 for traveling the vehicle. When the power source 104 stops, the compressor 101 also stops. The compressor 101 sucks the refrigerant from the evaporator 1, compresses it, and discharges it to the radiator 102. The radiator 102 cools the high-temperature refrigerant. The radiator 102 is also called a condenser. The decompressor 103 decompresses the refrigerant cooled by the radiator 102.

  The evaporator 1 performs heat exchange between the blown air blown by a blower (not shown) and the refrigerant decompressed by the decompressor 103, evaporates the refrigerant, and sends the blown air blown into the vehicle interior. Cooling. Accordingly, the blown air in the present embodiment corresponds to “external fluid” in the claims, and the refrigerant in the present embodiment corresponds to “heat medium” in the claims.

  As shown in FIGS. 2 to 4, the evaporator 1 is provided between the first header tank 2 and the second header tank 3, which are spaced apart in the vertical direction, and the header tanks 2 and 3. The core part 4 is provided.

  The first header tank 2 has a leeward upper header portion 5 located on the downstream side of the blast air flow, and an leeward upper header portion 6 located on the upstream side of the blast air flow and integrated with the leeward upper header portion 5. It has. The leeward side upper header part 5 and the leeward side upper header part 6 are provided by dividing the first header tank 2 into two in the flow direction of the blown air by the partition part 2a.

  The second header tank 3 includes a leeward lower header portion 7 located on the downstream side of the blast air flow, and an leeward lower header portion located on the upstream side of the blast air flow and integrated with the second leeward lower header portion 7. 8 and. The leeward side lower header part 7 and the leeward side lower header part 8 are provided by dividing the second header tank 3 into two by the partition part 3a in the air flow direction.

  The core portion 4 is provided with two rows of tube rows 11 and 12 formed by laminating a plurality of flat tubes 9 extending in the vertical direction, arranged in the flow direction of the blown air. Corrugated fins 13 are arranged in the ventilation gap between adjacent tubes 9 in each tube row 11, 12 so as to straddle the tubes 9 in both tube rows 11, 12. The corrugated fin 13 is brazed to the tube 9. Further, side plates 14 are respectively disposed on the outer sides of the corrugated fins 13 disposed at both ends of the tube 9 in the stacking direction (hereinafter referred to as the tube stacking direction). The side plate 14 is brazed to the corrugated fin 13.

  The tube 9 is made of, for example, aluminum and can be obtained by an extrusion method or the like. Both longitudinal ends of the tubes 9 of the leeward side tube row 11 are connected so as to communicate with both the leeward side upper and lower header parts 5 and 7. Moreover, the longitudinal direction both ends of the tubes 9 of the windward side tube row 12 are connected so as to communicate with the windward upper and lower header portions 6 and 8.

  As shown in FIGS. 3 and 4, in the leeward side tube row 11, three tube groups 11 </ b> A, 11 </ b> B, and 11 </ b> C composed of a plurality of tubes 9 are directed from the side closer to the refrigerant inlet 22 described later toward the far side ( They are arranged side by side (from the right end to the left end of the page). Further, in the windward tube row 12, two tube groups 12A and 12B composed of a plurality of tubes 9 are provided side by side from the side far from the refrigerant inlet 22 toward the side closer to the side (from the left end to the right end of the page). ing.

  The leeward side upper and lower header sections 5 and 7 have sections 15, 16, 17 and the same number as the tube groups 11A, 11B, and 11C of the leeward side tube row 11 and communicate with the tubes of the tube groups 11A, 11B, and 11C, respectively. 18, 19, and 21 are provided. A refrigerant inlet 22 is provided at the right end of the rightmost section 15 of the leeward side upper header section 5.

  Hereinafter, the three tube groups 11 </ b> A, 11 </ b> B, and 11 </ b> C of the leeward side tube row 11 are referred to as first to third tube groups from the right end portion on the side close to the refrigerant inlet 22 toward the left end portion on the far side. Further, the end portions on the side farther from the right end portion on the side close to the refrigerant inlet 22 are the sections 15, 16, 17 and 18, 19, 21 communicating with the tubes 9 of the first to third tube groups 11A, 11B, 11C. It shall be called 1st-3rd division toward a left end part.

  The third tube group 11C is the farthest tube group located farthest from the refrigerant inlet 22 in the leeward side tube row 11, and the third section 17 of the leeward side upper header portion 5 is the tube 9 of the third tube group 11C. The leeward farthest section on the upstream side in the refrigerant flow direction that communicates with the leeward side.

  The upwind upper and lower header sections 6 and 8 are provided with the same number of sections 23, 24 and 25, 26 as the tube groups 12A and 12B of the windward tube row 12 and the tubes 9 of the tube groups 12A and 12B communicate with each other. ing. A refrigerant outlet 27 is provided at the end on the same side as the refrigerant inlet 22 at the right end of the section 24 at the right end of the drawing in the upwind header section 6.

  Hereinafter, the two tube groups 12A and 12B of the windward tube row 12 are referred to as fourth to fifth tube groups from the left end of the end far from the refrigerant outlet 27 toward the right end of the end close to the refrigerant outlet 27. . Further, the sections 23, 24 and 25, 26 communicating with the tubes 9 of the fourth to fifth tube groups 12 </ b> A, 12 </ b> B are connected to the end closer to the refrigerant outlet 27 from the end (left end) far from the refrigerant outlet 27. It shall be called 4th-5th division toward a part (right end part).

  The fourth tube group 12A is the farthest tube group located farthest from the refrigerant outlet 27 in the windward tube row 12, and the fourth section 23 of the windward upper header portion 6 communicates with the fourth tube group 12A. This is the windward farthest section on the upstream side in the medium flow direction.

  The total number of tubes 9 constituting the first and second tube groups 11A and 11B of the leeward tube row 11 is equal to the number of tubes 9 constituting the fifth tube group 12B of the leeward tube row 12. Further, the number of tubes 9 constituting the third tube group 11 </ b> C of the leeward tube row 11 is equal to the number of tubes 9 constituting the fourth tube group 12 </ b> A of the leeward tube row 12.

  The total length in the tube stacking direction of the first sections 15 and 18 and the second sections 16 and 19 in the leeward upper and lower header sections 5 and 7 is the same as that of the fifth sections 24 and 26 in the leeward upper and lower header sections 6 and 8. It is equal to the length in the tube stacking direction. In addition, the length in the tube stacking direction of the third sections 17 and 21 in the leeward upper and lower header sections 5 and 7 is the same as the length of the fourth sections 23 and 25 in the tube stacking direction in the leeward upper and lower header sections 6 and 8. Are equal.

  The leeward side upper header portion 5 is provided with a partition wall 33 that divides the space in the tank of the leeward side upper header portion 5 into a first compartment 15 and a second compartment 16 in the tube stacking direction. Both partitions 15 and 16 are in a non-communication state by the partition wall 33.

  In the third section 17 of the leeward side upper header section 5, a shunting resistance section 36 is provided that partitions the third section 17 into an upper space 17A and a lower space 17B in the tube longitudinal direction. The lower space 17B is disposed below the upper space 17A so as to face the tube 9. A plurality of coolant passage holes 39 are formed in the shunting resistance portion 36 at intervals in the tube stacking direction, so that the two spaces 17A and 17B communicate with each other.

  Between the second section 16 and the third section 17 of the leeward side upper header section 5, the end of the lower space 17B of the third section 17 on the side close to the refrigerant inlet 22 is closed, and the second section 16 A flow blocking unit 41 that blocks the flow of the refrigerant to the lower space 17B is provided. Further, the end of the upper space 17A of the third section 17 on the side close to the refrigerant inlet 22 opens, whereby the second section 16 and the upper space 17A of the third section 17 are in communication with each other. The refrigerant flows from the second section 16 into the upper space 17A of the section 17 on the refrigerant inlet 22 side of the third section 17. Here, the opening at the end of the upper space 17A of the third section 17 on the side close to the refrigerant inlet 22 serves as an inlet portion 45 through which the refrigerant flows into the upper space 17A of the third section 17.

  The first section 18 and the second section 19 of the leeward side lower header portion 7 are in communication with each other. Moreover, the partition wall 34 is provided between the 2nd division 19 and the 3rd division 21 of the leeward side lower header part 7, Thereby, both the divisions 19 and 21 are a non-communication state.

  A partition wall 35 is provided between the fourth section 23 and the fifth section 24 of the windward upper header section 6, and thereby the sections 23 and 24 are not in communication.

  In the fifth section 26 of the windward lower header section 8, a shunting resistance section 42 that partitions the inside of the fifth section 26 into an upper space 26A and a lower space 26B is provided. A plurality of refrigerant passage holes 43 are formed in the shunting resistance portion 42 at intervals in the tube stacking direction.

  Between the fourth section 25 and the fifth section 26 of the windward lower header portion 8, the end of the upper space 26A of the fifth section 26 on the side far from the refrigerant inlet 22 is closed, and the upper section from the fourth section 25 is A blocking portion 44 that blocks the flow of the refrigerant to the space 26A is provided. Further, the end of the lower space 26B of the fifth section 26 on the side far from the refrigerant inlet 22 is opened, whereby the fourth section 25 and the lower space 26B of the fifth section 26 are in communication with each other. The refrigerant flows from the fourth compartment 25 into the lower space 26 </ b> B of the compartment 26.

  The second upper space 17A of the third section 17 of the leeward upper header section 5 and the fourth section 23 of the leeward upper header section 6 are an inlet portion 45 and a blocking section 41 in the partition section 2a of the first header tank 2. In addition, a portion farther from the refrigerant inlet 22 than the partition wall 35 communicates with a plurality of communication passages 30 including through holes provided at intervals in the tube stacking direction.

  The third section 21 of the leeward lower header section 7 and the fourth section 25 of the leeward lower header section 8 are portions farther from the refrigerant inlet 22 than the partition wall 34 in the partition section 3 a of the second header tank 3. It connects via the communication part 40 provided in.

  As described above, each of the compartments 15 to 19, 21, 23 to 26, the refrigerant inlet 22, the refrigerant outlet 27, the branching resistance portion 36 having the refrigerant passage hole 39, the blocking portion 41, the first lower space 17 </ b> B, the second upper portion By providing the space 17A, the shunting resistance portion 42 having the coolant passage hole 43, the blocking portion 44, the upper space 26A, the lower space 26B, and the communication passages 30 and 40, the coolant is the first tube group 11A, the coolant inlet The tube 9 of the fourth tube group 12A farthest from the third tube group 11C, the farthest tube row 11 of the leeward side tube row 11 and the refrigerant outlet 27, which is farthest from the 22 It flows from the side where the refrigerant inlet 22 is located to the opposite side, here from the top to the bottom, and these tube groups 11A, 11C, and 12A are downflow tube groups. Moreover, a refrigerant | coolant will flow in the inside of the tube 9 of the 2nd tube group 11B and the 5th tube group 12B from the bottom to the top, and these tube groups 11B and 12B become an upflow tube group.

  That is, the refrigerant flow directions in the third tube group 11C of the leeward tube row 11 and the tubes 9 of the fourth tube group 12A of the leeward tube row 12 are the same direction. The first tube group 11A serves as a first path 28 in which the refrigerant flows in the tube 9 from the side of the upper or lower side where the refrigerant inlet 22 is located to the opposite side, in this example, from the top to the bottom. Further, the second tube group 11 </ b> B serves as a second path 29 in which the refrigerant flows from the bottom to the top in the tube 9 in the direction opposite to the first path 28. The third and fourth tube groups 11 </ b> C and 12 </ b> A form a third path 31 in which the refrigerant flows in the same direction as the first path 28 from the top to the bottom in the tube 9. Further, the fifth tube group 12 </ b> B serves as a fourth path 32 in which the refrigerant flows from the bottom to the top in the tube 9 in the direction opposite to the first path 28. The third path 31 is configured by the third and fourth tube groups 11C and 12A having the same flow direction of the refrigerant in the tube 9 arranged in series in the flow direction of the blown air. .

  Then, as shown in FIG. 5, the refrigerant flowing in from the refrigerant inlet 22 sequentially flows through the tubes 9 of the first to fourth paths 28, 29, 31, and 32 through two paths described below, and the refrigerant outlet 27 It is made to flow out of. The first path includes the first section 15, the first path 28 of the first tube group 11A, the first section 18, the second section 19, the second path 29 of the second tube group 11B, the second section 16, and the third path. Upper space 17A of section 17, fourth section 23, third path 31 of fourth tube group 12A, fourth section 25, lower space 26B of fifth section 26, upper space 26A of fifth section 26, fifth tube group This is a path through which the refrigerant flows in the order of the 12B fourth path 32 and the fifth section 24.

  The second path includes the first section 15, the first path 28 of the first tube group 11A, the first section 18, the second section 19, the second tube group 11B, the second path 29, the second section 16, and the third section. 17 upper space 17A, lower space 17B of third section 17, third tube group 11C third path 31, third section 21, fourth section 25, lower space 26B of fifth section 26, above fifth section 26 This is a path through which the refrigerant flows in the order of the space 26A, the fourth path 32 of the fifth tube group 12B, and the fifth section 24.

  Next, a detailed configuration of the header tanks 2 and 3 in the present embodiment will be described based on FIGS. 6 and 7. In addition, since the 1st header tank 2 and the 2nd header tank 3 are the substantially the same structures, below, the 1st header tank 2 is demonstrated and description about the 2nd header tank 3 is abbreviate | omitted. Further, in FIG. 7, the refrigerant passage hole 39 is not shown for clarity of illustration. The same applies to the following drawings (FIGS. 8, 10, 14, and 17).

  As shown in FIGS. 6 and 7, the first header tank 2 includes a header plate 51 to which both tubes 9 arranged in two rows in the flow direction of the blown air are fixed, and an intermediate plate member fixed to the header plate 51. 52, a tank forming member 53, and first to third separators 54 to 56.

  The tank forming member 53 is fixed to the header plate 51 and the intermediate plate member 52 so as to form a space in which refrigerant flows. Specifically, the tank forming member 53 is formed in a double mountain shape (W shape) when viewed from the longitudinal direction by pressing a flat metal.

  The intermediate plate member 52 is a plate-like member that divides the internal space of the first header tank 2 into a first space and a second space in the tube longitudinal direction (vertical direction). By the intermediate plate member 52, the third section 17 of the leeward side upper header portion 5 is partitioned into an upper space 17A and a lower space 17B in the tube longitudinal direction. Therefore, the portion corresponding to the third section 17 in the intermediate plate member 52 (the portion located in the third section 17) constitutes the shunt resistor 36 described above. The intermediate plate member 52 in the present embodiment constitutes a “first partition member” in the claims.

  In the present embodiment, the first section 15 and the second section 16 of the leeward upper header section 5 and the windward upper header section 6 are not partitioned in the tube longitudinal direction. Through holes 521 and 522 are respectively formed in a part located in the two sections 15 and 16 and a part located in the upwind header section 6.

  The first separator 54 is a plate-like member that partitions the internal space of the leeward upper header portion 5 of the first header tank 2 in the tube stacking direction. Therefore, the 1st separator 54 in this embodiment comprises the "2nd partition member" in a claim.

  The first separator 54 is disposed between the second section 16 and the third section 17 of the leeward upper header section 5. Thereby, the 2nd division 16 and the lower space 17B of the 3rd division 17 can be made into a communication state. Accordingly, the portion of the first separator 54 that faces the lower space 17 </ b> B constitutes the flow blocking portion 41 described above.

  A through hole 541 is formed on the upper side of the first separator 54 (the side far from the tube 9 in the tube longitudinal direction). For this reason, the second space 16 and the upper space 17 </ b> A of the third space 17 communicate with each other via the through hole 541.

  Similar to the first separator 54, the second separator 55 is a plate-like member that partitions the internal space of the leeward upper header portion 5 of the first header tank 2 in the tube stacking direction. The second separator 55 is disposed inside the through hole 521 and between the first section 15 and the second section 16 of the leeward side upper header portion 5. Thereby, the 1st division 15 and the 2nd division 16 can be made into a disconnection state. Therefore, the second separator 55 constitutes the partition wall 33 described above.

  The third separator 56 is a plate-like member that partitions the internal space of the upwind header section 6 of the first header tank 2 in the tube stacking direction. The third separator 56 is disposed inside the through hole 522 and between the fourth section 23 and the fifth section 24 of the upwind header section 6. Thereby, the 4th division 23 and the 5th division 24 can be made into a non-communication state. Therefore, the third separator 56 constitutes the partition wall 35 described above.

  The intermediate plate member 52 and the tank forming member 53 have slits 523 and 531 into which the first separator 54 is inserted from the upper side (the side far from the tube 9 in the tube longitudinal direction). The slits 523 and 531 are formed so as to penetrate the intermediate plate member 52 and the tank forming member 53 in the plate thickness direction.

  Therefore, the first separator 54 is inserted into the slit 523 and is sandwiched by the intermediate plate member 52 from both sides (both sides) in the tube stacking direction. Further, the first separator 54 is inserted into the slit 531 so as to be sandwiched by the tank forming member 53 from both sides (both sides) in the tube stacking direction.

  In the present embodiment, the first separator 54 is inserted into the slits 523 and 531 from the side far from the tube 9 in the longitudinal direction of the tube (the upper side in the drawing in FIG. 7). For this reason, the first separator 54 is inserted into the slits 523 and 531, and is sandwiched between the intermediate plate member 52 and the tank forming member 53 from both sides (both sides) in the tube stacking direction. According to this, it is possible to prevent the first separator 54 from falling in the tube stacking direction during assembly or joining. Therefore, the first separator 54 can be securely brazed to the header tank 2 (that is, the intermediate plate member 52 and the tank forming member 53).

  Further, in this embodiment, since the first separator 54 can be inserted after the header plate 51, the intermediate plate member 52, and the tank forming member 53 are assembled, the positioning of the first separator 54 with respect to the header tank 2 is ensured. It can be carried out.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIGS. The second embodiment is different from the first embodiment in the insertion direction of the first separator 54.

  As shown in FIGS. 8 and 9, a slit 511 extending in the tube longitudinal direction is formed on the surface of the header plate 51 on the downstream side of the blown air flow. In the slit 511, the end portion on the side far from the tube 9 is open, and the end portion on the side close to the tube 9 is not open.

  Further, the slit 523 formed in the intermediate plate member 52 and the slit 531 formed in the tank forming member 53 respectively extend in parallel to the flow direction of the blown air. In these slits 523 and 531, the end on the downstream side of the blown air flow is opened, and the end on the upstream side of the blown air flow is not opened.

  Thereby, in this embodiment, the 1st separator 54 is inserted in slit 511, 523, 531 from the blowing air flow downstream. Therefore, the first separator 54 is inserted into the slits 511, 523, and 531, so that the first separator 54 is sandwiched from both sides (both sides) in the tube stacking direction by the three members of the header plate 51, the intermediate plate member 52, and the tank forming member 53. It is. For this reason, it is possible to more reliably suppress the first separator 54 from falling in the tube stacking direction at the time of assembly or joining, so that the first separator 54 can be reliably brazed by the header tank 2.

(Third embodiment)
Next, a third embodiment of the present invention will be described with reference to FIGS. The third embodiment is different from the first embodiment in the shape of the tank forming member 53.

  As shown in FIGS. 10 and 11, in this embodiment, the slit 531 of the tank forming member 53 is abolished. For this reason, the first separator 54 is inserted only into the slit 523 formed in the intermediate plate member 52. Further, the upper end portion (the end portion far from the tube 9) of the first separator 54 is in contact with the inner surface of the tank forming member 53.

  According to the present embodiment, since the first separator 54 is inserted into the slit 523 and sandwiched by the intermediate plate member 52 from both sides (both sides) in the tube stacking direction, Similar effects can be obtained. Furthermore, since it is not necessary to form the slit 531 in the tank forming member 53, the manufacturing process can be simplified. Further, since it is not necessary to insert the first separator 54 into the tank forming member 53 and the header plate 51, the dimensional accuracy in the tube stacking direction of the tank forming member 53 and the header plate 51 is eased, and the assembly process is simplified. Can be planned.

(Fourth embodiment)
Next, a fourth embodiment of the present invention will be described with reference to FIG. The fourth embodiment is different from the second embodiment in the shapes of the header plate 51 and the first separator 54.

  As shown in FIG. 12, a first protrusion 542 that protrudes toward the header plate 51 is formed on the end surface of the first separator 54 on the side close to the tube 9, that is, the end surface facing the header plate 51. Further, the header plate 51 is formed with a through hole 512 into which the first protrusion 542 of the first separator 54 is inserted.

  In the present embodiment, the first separator 54 is inserted into the slits 531 and 523 and the through hole 512 from the side farther from the tube 9 (upper side in the drawing) in the tube longitudinal direction. Accordingly, the first separator 54 is inserted into the slits 531 and 523 and the through hole 512, so that both sides (both sides) in the tube stacking direction are formed by the three members of the header plate 51, the intermediate plate member 52, and the tank forming member 53. It is sandwiched from. For this reason, it is possible to more reliably suppress the first separator 54 from falling in the tube stacking direction at the time of assembly or joining, so that the first separator 54 can be reliably brazed by the header tank 2.

(Fifth embodiment)
Next, a fifth embodiment of the present invention will be described with reference to FIG. The fifth embodiment differs from the fourth embodiment in the shapes of the tank forming member 53 and the first separator 54.

  As shown in FIG. 12, a second protrusion 543 that protrudes toward the tank forming member 53 is formed on the end face of the first separator 54 that is far from the tube 9, that is, the end face that faces the tank forming member 53. Yes. The tank forming member 53 has a through hole 532 into which the second protrusion 543 of the first separator 54 is inserted.

  By inserting the first separator 54 into the slit 523 and the through holes 512 and 532, the first separator 54 is sandwiched by the three members of the header plate 51, the intermediate plate member 52, and the tank forming member 53 from both sides (both sides) in the tube stacking direction. Therefore, the same effect as the fourth embodiment can be obtained.

  In the present embodiment, after the header plate 51 and the intermediate plate member 52 are fixed, the first separator 54 is inserted into the through hole 512 and the slit 523 from the side farther from the tube 9 (upper side in the drawing) in the tube longitudinal direction. Thereafter, the header tanks 2 and 3 are manufactured by fixing the tank forming member 53 to the intermediate plate member 52 so that the second protrusion 543 of the first separator 54 is inserted into the through hole 532.

(Sixth embodiment)
Next, a sixth embodiment of the present invention will be described with reference to FIG. In the sixth embodiment, the shapes of the intermediate plate member 52 and the tank forming member 53 are different from those of the first embodiment.

  As shown in FIG. 14, in this embodiment, the slit 523 of the intermediate plate member 52 is abolished. Further, the through hole 521 of the intermediate plate member 52 extends to the boundary between the second section 16 and the third section 17. The end surface 521a on the third section 17 side in the through hole 521 and the side surface of the first separator 54 are in contact with each other. In other words, the first separator 54 is in contact with the intermediate plate member 52 on one surface in the tube stacking direction, and is not in contact with the intermediate plate member 52 on the other surface in the tube stacking direction.

  A second protrusion 543 that protrudes toward the tank forming member 53 is formed on the end face of the first separator 54 on the side far from the tube 9, that is, the end face facing the tank forming member 53. The tank forming member 53 has a through hole 532 into which the second protrusion 543 of the first separator 54 is inserted. Since the first separator 54 is inserted into the through hole 532 and is sandwiched by the tank forming member 53 from both sides (both sides) in the tube stacking direction, the same effect as in the first embodiment can be obtained. Is possible.

  In this embodiment, after fixing the header plate 51 and the intermediate plate member 52, the tube 9 in the longitudinal direction of the tube is arranged so that the first separator 54 comes into contact with the end surface 521a on the third section 17 side in the through hole 521. It inserts into the through-hole 512 from the side far from (the upper side of the drawing). Thereafter, the header tanks 2 and 3 are manufactured by fixing the tank forming member 53 to the intermediate plate member 52 so that the first separator 54 and the second projecting portion 543 are inserted into the through hole 532.

(Seventh embodiment)
Next, a seventh embodiment of the present invention will be described with reference to FIG. The seventh embodiment is different from the third embodiment in the shape of the first separator 54.

  As shown in FIG. 15, in this embodiment, the length of the first separator 54 in the tube stacking direction (hereinafter referred to as the separator thickness) corresponds to the upper space 17A of the third section 17 and the third section. 17 and the portion corresponding to the lower space 17B. Specifically, the separator thickness of the portion corresponding to the upper space 17A in the first separator 54 (the portion disposed in the space farther from the tube 9 than the intermediate plate member 52) is the lower space in the first separator 54. The separator thickness is thinner than the portion corresponding to 17B (the portion disposed closer to the tube 9 than the intermediate plate member 52).

  A portion corresponding to the upper space 17 </ b> A in the first separator 54 is inserted into the slit 523 of the intermediate plate member 52. That is, the slit 523 of the intermediate plate member 52 is formed in such a size that a portion corresponding to the lower space 17B in the first separator 54 cannot be inserted.

  According to the present embodiment, the contact surface 545 that contacts the portion of the first separator 54 corresponding to the lower space 17B can be secured on the surface on the lower space 17B side of the intermediate plate member 52, so the first separator 54 and the intermediate plate It becomes possible to further improve the brazing property with the member 52.

  In this embodiment, after the first separator 54 is disposed on the header plate 51, the intermediate plate member 52 is disposed so that the first separator 54 is inserted into the slit 523, and finally the tank forming member 53 is disposed. The header tanks 2 and 3 are manufactured by being fixed to the intermediate plate member 52.

(Eighth embodiment)
Next, an eighth embodiment of the present invention will be described with reference to FIG. In the eighth embodiment, the shape of the intermediate plate member 52 is different from that in the third embodiment.

  As shown in FIG. 16, the intermediate plate member 52 of the present embodiment has a convex portion 525 that protrudes toward the side far from the tube 9. The convex part 525 is arrange | positioned over the whole tube lamination direction. The convex portion 525 is formed by bending the intermediate plate member 52 itself. Due to the convex portion 525, a large area portion in which the contact area with the first separator 54 is increased is formed in the contact portion that contacts the first separator 54 in the intermediate plate member 52.

  According to the present embodiment, since the contact area between the intermediate plate member 52 and the first separator 54 can be increased, the brazing property between the first separator 54 and the intermediate plate member 52 can be further improved. Become.

(Ninth embodiment)
Next, a ninth embodiment of the present invention will be described with reference to FIG. In the eighth embodiment, the shape of the intermediate plate member 52 is different from that in the third embodiment.

  As shown in FIG. 16, in the present embodiment, the slit 523 is connected to the through hole 521 in the intermediate plate member 52. That is, the slit 523 is connected to the through hole 521. At this time, since both ends of the first separator 54 in the direction of air flow are sandwiched by the intermediate plate member 52 from both sides in the tube stacking direction, the same effect as in the first embodiment can be obtained. .

(Other embodiments)
The present invention is not limited to the above-described embodiment, and can be variously modified as follows without departing from the spirit of the present invention. Further, the means disclosed in each of the above embodiments may be appropriately combined within a practicable range.

  (1) In the fourth and fifth embodiments, the example in which the through hole 512 into which the first protrusion 542 of the first separator 54 is inserted is described in the header plate 51. However, the present invention is not limited to this. The plate 51 may be formed with a recess into which the first protrusion 542 of the first separator 54 is inserted. Similarly, in the fifth and sixth embodiments described above, the example in which the through hole 532 into which the second protrusion 543 of the first separator 54 is inserted is formed in the tank forming member 53. The tank forming member 53 may be formed with a recess into which the second protrusion 543 of the first separator 54 is inserted.

  (2) In the seventh embodiment, an example is described in which the separator thickness in the portion corresponding to the upper space 17A in the first separator 54 is made thinner than the separator thickness in the portion corresponding to the lower space 17B in the first separator 54. However, the present invention is not limited to this, and the separator thickness in the portion corresponding to the upper space 17 </ b> A in the first separator 54 may be made thicker than the separator thickness in the portion corresponding to the lower space 17 </ b> B in the first separator 54.

  (3) In the eighth embodiment, the example in which the convex portion 525 is disposed over the entire region of the intermediate plate member 52 in the tube stacking direction has been described. However, the present invention is not limited thereto, and the first separator 54 in the intermediate plate member 52 comes into contact. You may form the convex part 525 only in a site | part.

  (4) In the above embodiment, the example in which the header tanks 2 and 3 are provided at both ends in the longitudinal direction of the tube 9 has been described. However, the present invention is not limited to this, and the refrigerant flow is U at one end in the longitudinal direction of the tube. You may employ | adopt the tube to turn and provide a header tank only in the other edge part in the longitudinal direction of the said tube.

  (5) In the above embodiment, the example in which the heat exchanger of the present invention is applied to the evaporator 1 has been described. However, the present invention is also applied to other heat exchangers such as a radiator and a refrigerant radiator (refrigerant condenser). Is possible.

2, 3 Header tank 9 Tube 17A First space 17B Second space 51 Header plate 52 Intermediate plate member (first partition member)
53 Tank forming member 54 First separator (second partition member)
511, 523, 531 slit

Claims (10)

A heat exchanger that exchanges heat between an external fluid flowing outside and a heat medium,
A core portion (4) configured by laminating a plurality of tubes (9) through which the heat medium flows;
A header tank (2, 3) connected to at least one end of the plurality of tubes (9) and collecting or distributing the heat medium flowing through the plurality of tubes (9);
The header tanks (2, 3)
A first partition member (52) that divides the internal space of the header tank (2, 3) into a first space (17A) and a second space (17B) in the longitudinal direction of the tube (9);
A second partition member (54) that divides at least one of the first space (17A) and the second space (17B) into two in the stacking direction of the tube (9);
The second partition member (54) is sandwiched between at least one of the header tank (2, 3) and the first partition member (52) from both sides in the stacking direction of the tube (9). Heat exchanger. The second partition member (54) is configured to divide both the first space (17A) and the second space (17B) into two in the stacking direction of the tube (9),
A through hole (541) is formed in a portion of the second partition member (54) located in one space (17A) of the first space (17A) and the second space (17B). The heat exchanger according to claim 1, wherein: At least the first partition member (52) of the first partition member (52) and the header tank (2, 3) has a slit (523) formed in a portion corresponding to the second partition member (54). 511, 531),
The heat exchanger according to claim 1 or 2, wherein the second partition member (54) is inserted into the slit (523, 511, 531). The header tanks (2, 3) include a header plate (51) to which the tube (9) is fixed, and a tank forming member (53) that forms a space in the tank together with the header plate (51). And
At least the first partition member (52) of the first partition member (52), the header plate (51), and the tank forming member (53) is located at a portion corresponding to the second partition member (54). Having a slit (523) formed;
The heat exchanger according to claim 1 or 2, wherein the second partition member (54) is inserted into the slit (523).   The second partition member (54) is sandwiched from both sides in the stacking direction of the tube (9) by at least one of the header plate (51) and the tank forming member (53). Item 5. The heat exchanger according to Item 4. The header tanks (2, 3) include a header plate (51) to which the tube (9) is fixed, and a tank forming member (53) that forms a space in the tank together with the header plate (51). And
The second partition member (54) includes a first protrusion (542) protruding toward the header plate (51) and a second protrusion (543) protruding toward the tank forming member (53). 6. The heat exchanger according to claim 1, wherein at least one of the heat exchangers is included.   Of the second partition member (54), the portion disposed in the second space (17B) and the portion disposed in the first space (17A) are long in the stacking direction of the tubes (9). The heat exchanger according to any one of claims 1 to 6, wherein the heat exchangers are different from each other. The second partition member (54) is sandwiched from both sides of the tube (9) in the stacking direction by the header tanks (2, 3),
The second partition member (54) is in contact with the first partition member (52) on one surface in the stacking direction of the tube (9), and on the other side in the stacking direction of the tube (9). The heat exchanger according to any one of claims 1 to 7, wherein the heat exchanger is not in contact with the first partition member (52) on the surface.   In the contact portion of the first partition member (52) that contacts the second partition member (54), the shape of the first partition member (52) itself is changed to the second partition member (54). The heat exchanger according to any one of claims 1 to 7, wherein a large area portion (525) with an increased contact area is formed. The first partition member (52) has a through hole (521) that allows the first space (17A) and the second space (17B) to communicate with each other.
The heat exchanger according to any one of claims 3 to 5, wherein the slit (523) of the first partition member (52) is connected to the through hole (521).

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