JP2014153002A - Heat exchanger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat exchanger in which a side plate can be prevent from coming off, over a long duration.SOLUTION: A condenser 1 to which this invention is applied, includes: a pair of header tanks; a heat exchanger core part 10 provided between both header tanks and having heat exchange tubes 4 and side plates 6; and brackets for mounting 7 provided in the heat exchange core part 10. The bracket for mounting 7 has: a base part 20 along the outside surface of the side plate 6 of the heat exchange core part 10; and a pair of holding clips 21 and 22 provided in the base part 20 and clipping the heat exchanger core part 10 from both sides of a ventilation direction. The two holding clips 21 and 22 of the bracket for mounting 7 are fixed to each other and clip the side plate 6 from both sides of the ventilation direction.

Description

  The present invention relates to a heat exchanger.

  For example, as a heat exchanger used in a condenser for a car air conditioner, the present applicant firstly has a pair of header tanks whose longitudinal direction is vertically oriented and spaced apart from each other, and a width direction of ventilation direction. Between the two header tanks with a space in the longitudinal direction of the header tank and having both ends connected to both header tanks, and between the adjacent heat exchange tubes A fin disposed between the outer and outer heat exchange tubes and brazed to the heat exchange tubes, and a side plate disposed on the outer fins and brazed to the fins. A cylindrical tank body having both ends opened and a closing member that closes both ends of the tank body, and both end portions of the side plates are respectively formed on the peripheral walls of the tank bodies of both header tanks. A heat exchanger in which a bracket is provided at a middle portion in the longitudinal direction of the side plate, which is passed through through holes formed in the heat exchange tube side portions at both ends of the chain member and brazed to the peripheral wall of the tank body. Proposed (see Patent Document 1).

  The condenser comprising the heat exchanger described in Patent Document 1 is attached to the vehicle using a bracket, or connected to an oil cooler having the same configuration as the heat exchanger described in Patent Document 1 using the bracket. Since it is used, the vibration applied to the bracket is directly transmitted to the side plate.

  And when the heat exchanger of patent document 1 is used as a capacitor | condenser for car air conditioners for a long period of time, since a fin will be thinned by corrosion and intensity | strength will fall, there exists a possibility that a side plate may remove | deviate by the said vibration.

JP 2008-51456 A

  An object of the present invention is to provide a heat exchanger that can solve the above problems and prevent the side plate from coming off for a long period of time.

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

1) A pair of header tanks spaced apart from each other, a heat exchange core part provided between the two header tanks, and a mounting bracket provided on the heat exchange core part are provided for heat exchange. A core part is arranged in parallel between both header tanks, and both end parts are connected to both header tanks, between adjacent heat exchange pipes and outside the heat exchange pipes at both ends. In a heat exchanger composed of fins brazed to the heat exchange tubes and side plates brazed to the fins arranged outside the fins at both ends,
A base part along a surface of the side plate facing away from the fins at both ends of the side plate, a pair of sandwiching pieces provided on the base part and sandwiching the heat exchange core part from both sides in the airflow direction; The mounting piece is provided on the base portion and protrudes outward in the arrangement direction of the heat exchange tubes, and the first sandwiching piece of the two sandwiching pieces of the mounting bracket is the heat exchange tube or the second sandwiching piece. A heat exchanger in which both sandwiched pieces are sandwiched from both sides in the ventilation direction.

  2) The heat exchanger according to 1) above, wherein both the sandwiching pieces of the mounting bracket are fixed to each other, and the both sandwiching pieces sandwich the side plate from both sides in the ventilation direction.

  3) The first sandwiching piece of the mounting bracket is provided with an arm portion extending between the adjacent heat exchange tubes and extending to the second sandwiching piece side, and the first sandwiching piece is also provided on the second sandwiching piece. A through hole through which the arm portion of the first sandwiching piece passes is formed, and an engaging claw that engages with a part of the periphery of the through hole in the second sandwiching piece is provided at the tip of the arm portion of the first sandwiching piece. ) The heat exchanger described.

  4) At least one mounting bracket is provided on each side plate side of the heat exchange core, and the second sandwiched between the adjacent heat exchange tubes are provided on the first sandwiching pieces of all the mounting brackets. An arm portion extending to the sandwiching piece side is provided, and a through hole through which the arm portion of the first sandwiching piece passes is formed in the second sandwiching piece, and a second hole is formed at the distal end portion of the arm portion of the first sandwiching piece. An engaging claw for engaging with a part of the periphery of the through hole in the sandwich piece is provided, and an attachment bracket provided on one side plate side and an attachment bracket provided on the other side plate side are provided. The heat exchanger as described in 3) above, wherein two mounting brackets at the same position in the longitudinal direction of the side plate and at the same position in the longitudinal direction of the side plate are integrated with each other.

  5) The first sandwiching piece provided with the arms in the two mounting brackets integrated with each other is located on the same side in the ventilation direction, and both the first sandwiching pieces are integrated with each other through the connecting part. The heat exchanger as described in 4) above, wherein

6) At least one mounting bracket is provided on each side plate side of the heat exchange core, and the mounting bracket provided on one side plate side and the mounting bracket provided on the other side plate side Are in the same position in the longitudinal direction of the side plate, and the two mounting brackets in the same position in the longitudinal direction of the side plate are integrated with each other,
The first mounting bracket of the two mounting brackets integrated with each other includes a base portion along a surface facing the opposite side of the fins at both ends of the side plate, and a heat exchange core provided on the base portion. A pair of sandwiching pieces sandwiched from both sides in the ventilation direction, and a mounting piece provided on the base portion and projecting outward in the heat exchange tube arrangement direction. Are fixed to each other, and both sandwiched pieces sandwich the side plate from both sides in the ventilation direction.
Of the two mounting brackets fixed to each other, the second mounting bracket includes a base portion along a surface facing the opposite side of the fins at both ends of the side plate, and a base plate provided on the base portion for ventilation through the side plate Direction of two mounting brackets integrated with each other, comprising a pair of sandwiching pieces sandwiched from both sides of the direction and a mounting piece provided on the base portion and projecting outward in the direction in which the heat exchange tubes are arranged The heat exchanger as described in 1) above, wherein the sandwiching pieces located on the same side of each other are integrated via a connecting portion.

7) The first sandwiching piece of the first mounting bracket is provided with an arm portion extending between adjacent heat exchange tubes and extending to the second sandwiching piece side, and the first sandwiching piece is also provided on the second sandwiching piece. A through-hole through which the arm portion of the attachment piece passes is formed, and an engagement claw that engages with a part of the peripheral edge of the through-hole in the second attachment piece is provided at the tip of the arm portion of the first attachment piece, 2 Both mounting pieces of the mounting bracket are engaged with both side edges of the side plate in the ventilation direction,
The first sandwiching piece of the first mounting bracket and the first sandwiching piece in the second mounting bracket and the first sandwiching piece located on the same side in the ventilation direction are integrated via a connecting portion, The tip of the second sandwiching piece of the first mounting bracket extends to the vicinity of the second sandwiching piece located on the same side as the second sandwiching piece in the second mounting bracket in the ventilation direction,
The heat exchanger as described in 6) above, wherein a tip end portion of the second sandwiching piece of the first mounting bracket and a connecting portion that couples the first sandwiching pieces of both mounting brackets are fixed to each other.

  8) Of the two mounting brackets that are integrated with each other, the tip of the second sandwiching piece of the first mounting bracket and the connecting part that connects the first sandwiching pieces of both mounting brackets to each other One of them is provided with an arm portion extending between adjacent heat exchange tubes and extending to the other side, and a through hole is formed on the other side through which the arm portion passes. The heat exchanger according to 7) above, wherein an engaging claw that engages a part of the heat exchanger is provided.

  9) The heat exchanger according to 1) above, wherein the first sandwiching piece of the mounting bracket is fixed to the heat exchange pipe and the side plate, and the both sandwiching parts sandwich the side plate from both sides in the ventilation direction. .

  10) The first clamping piece of the mounting bracket is provided with an arm portion that extends between adjacent heat exchange tubes and extends to the second clamping piece side, and is attached to the tip of the arm portion at the heat exchange tube. An engaging claw that engages with the edge of the bracket for the second clamping piece is provided, and the second clamping piece of the mounting bracket is engaged with the edge of the side plate opposite to the first clamping piece. The heat exchanger as described in 9) above.

  According to the heat exchangers of 1) to 10) above, the mounting bracket is provided on the base portion along the surface facing the opposite side of the fins on both ends of the side plate, and the heat exchange core portion is provided on the base portion. A pair of sandwiching pieces sandwiched from both sides in the ventilation direction and a mounting piece provided on the base portion and projecting outward in the direction in which the heat exchange tubes are arranged, of the two sandwiching pieces of the mounting bracket. One sandwich piece is fixed to the heat exchange tube and the side plate, and similarly, the second sandwich piece is fixed to the heat exchange tube or the second sandwich piece, and both sandwich pieces are in the side plate ventilation direction. Since the fins are thinned by corrosion and the strength is reduced due to corrosion, the side plate can be prevented from coming off for a long period of time.

  According to the heat exchanger of 2) above, the effect of preventing the side plate from coming off becomes more remarkable.

  According to the heat exchanger of the above 3), the work of fixing the two sandwiching pieces of the mounting bracket to each other and the work of sandwiching the side plate from both sides in the airflow direction by both sandwiching pieces can be performed relatively easily. Can do. Moreover, it becomes possible to attach the mounting bracket to any position in the longitudinal direction of the heat exchange tube and the side plate, so that the layout can be improved.

  According to the heat exchangers 4) and 5), the number of parts can be reduced in the heat exchanger 3).

  According to the heat exchanger of 6), the number of parts can be reduced in the heat exchanger of 1).

  According to the heat exchanger of the above 7), in the heat exchanger of the above 6), the work for fixing the two sandwiching pieces of the first mounting bracket to each other, and the side plates in the ventilation direction by both the sandwiching pieces. The operation of sandwiching from both sides can be performed relatively easily. Further, both the mounting brackets can be mounted at arbitrary positions in the longitudinal direction of the heat exchange pipe and the side plate, and the layout can be improved.

  According to the heat exchanger of the above 8), the effect of preventing the side plate from coming off becomes more remarkable.

  According to the heat exchanger of 10) above, in the heat exchanger of 9), the side plate is ventilated by the work of fixing the first sandwiching piece of the mounting bracket to the heat exchange pipe and the both sandwiching pieces. The operation of pinching from both sides of the direction can be performed relatively easily.

It is a perspective view which shows the whole structure of the capacitor | condenser to which the heat exchanger of this invention is applied. It is the figure seen from the windward side which expands and shows a part of capacitor | condenser of FIG. 1, abbreviate | omitting a fin. It is an AA line expanded sectional view of FIG. It is a partial expansion perspective view which shows the method of mounting | wearing the heat-exchange core part of a heat exchanger with the mounting bracket shown in FIG. 2 and FIG. It is the vertical sectional view which omitted a part seen from the side which shows the 1st modification of the bracket for attachment used for the capacitor of Drawing 1. It is a figure equivalent to FIG. 2 which shows the 2nd modification of the bracket for attachment used for the capacitor | condenser of FIG. FIG. 7 is an enlarged sectional view taken along line B-B in FIG. 6. It is a partial expansion perspective view which shows the method of mounting | wearing the heat-exchange core part of a heat exchanger with the mounting bracket shown in FIG. FIG. 6 is a view corresponding to FIG. 5 and showing a third modification of the mounting bracket used in the capacitor of FIG. 1. FIG. 10 is a partially enlarged perspective view showing a method of mounting the mounting bracket shown in FIG. 9 on the heat exchange core part of the heat exchanger. It is the elements on larger scale of FIG. It is an enlarged view of a different part from FIG. 11 of FIG.

  Embodiments of the present invention will be described below with reference to the drawings. In this embodiment, the heat exchanger according to the present invention is applied to a condenser for a car air conditioner.

  In the following description, the direction indicated by the arrow X in FIG. 1 is the direction in which the wind flows, and when viewed from the leeward side, the top, bottom, left and right, that is, the top and bottom in FIG. 1 and FIG. It shall be left and right. The term “aluminum” includes aluminum alloys in addition to pure aluminum.

  Moreover, 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 FIG. 1, a capacitor (1) is composed of a pair of aluminum header tanks (2) (3) arranged at intervals in the left-right direction with the longitudinal direction facing up and down, and both header tanks (2 ) (3) includes a heat exchange core portion (10) and mounting brackets (7) provided on both upper and lower sides of the heat exchange core portion (10).

  Each header tank (2) (3) has a cylindrical aluminum tank body (8) open at both ends, and an aluminum plate closure that is brazed to both ends of the tank body (8) to close the opening at both ends It consists of a member (9). The left header tank (2) is divided into two upper and lower header parts (2a) and (2b) by a partition member (11) above the central part in the height direction, and the right header tank (3) is The upper and lower header parts (3a) and (3b) are partitioned by a partition member (12) below the central part. An aluminum inlet member (13) communicating with the upper header portion (2a) is brazed to a portion of the left header tank (2) above the partition member (11) in the tank body (8), and the right header tank ( An aluminum outlet member (14) communicating with the inside of the lower header portion (3b) is brazed to a portion of the tank body (8) of 3) below the partition member (12).

  The heat exchange core section (10) is disposed between the header tanks (2) and (3) with a gap in the vertical direction with the width direction in the ventilation direction and the longitudinal direction in the left-right direction, and A plurality of flat aluminum heat exchange pipes (4), both ends of which are connected to both header tanks (2) (3), between adjacent heat exchange pipes (4), and upper end heat exchange pipes (4 ) And the upper and lower ends of the upper corrugated fin (5) and the upper aluminum corrugated fin (5) brazed to the heat exchanging pipe (4). The aluminum side plate (6) is disposed under the corrugated fin (5) and brazed to the corrugated fin (5). Both end portions of the side plate (6) are inserted into through holes formed in the tank main bodies (8) of the header tanks (2) and (3) and brazed to the tank main body (8).

  There are at least one mounting bracket (7) on both the upper and lower sides (both side plates (6) side) of the heat exchange core (10), here in the left-right direction (longitudinal direction of the side plate (6)). Two are provided. The upper mounting bracket (7) and the lower mounting bracket (7) are provided at the same position in the longitudinal direction of the side plate (6).

  As shown in FIGS. 2 and 3, the mounting bracket (7) is made of plastic or metal, and the side plate (6) faces away from the corrugated fins (5) at both ends. A flat plate-shaped base portion (20) along with a pair of vertical flat plate-shaped sandwiching pieces (21) which are provided integrally with the base portion (20) and sandwich the heat exchange core portion (10) from both sides in the ventilation direction. 22) and a vertical plate-shaped mounting piece that is provided integrally with the base portion (20), protrudes outward in the direction in which the heat exchange tubes (4) are arranged, and has a through hole (23a) through which a mounting part such as a screw passes. (23)

  The sandwiching pieces (21), (22) of the mounting bracket (7) are positioned so that their tips exceed at least the second heat exchange pipe (4) from both ends, here the second heat exchange pipe (4 ), Are fixed to each other and fixed to the heat exchange pipe (4) and the side plate (6), and further sandwich the side plate (6) from both sides in the airflow direction. Out of the two sandwiching pieces (21) and (22) of all mounting brackets (7), the first sleeving piece (21) on the leeward side passes between the adjacent heat exchange tubes (4), and the windward side. A plurality of arm portions (24) extending to the second sandwiching piece (22) side are provided, and similarly, the arm portion (24) of the first sandwiching piece (21) passes through the second sandwiching piece (22). A through hole (25) is formed. A plurality of arms (24) of the first sandwich piece (21) are provided at intervals in the vertical and horizontal directions, and the upper arm (24) is provided on the lower surface of the upper heat exchange pipe (4). The lower arm (24) is along the upper surface of the lower heat exchange tube (4). Engaging claws (26) bent upward are integrally provided at the tip (windward end) of the plurality of upper arms (24), and the windward end of the plurality of lower arms (24). The part is integrally provided with an engaging claw (26) bent downward. Then, the engaging claw (26) of the upper arm portion (24) engages with the upper edge portion (a part of the peripheral edge of the through hole (25)) of the through hole (25) in the second clamping piece (22). At the same time, the engaging claw (26) of the lower arm (24) is located on the lower edge of the through hole (25) in the second sandwich piece (22) (part of the periphery of the through hole (25)). By engaging, both sandwiched pieces (21) and (22) are fixed to each other and fixed to the heat exchange pipe (4) and the side plate (6), and the side plate (6) is ventilated. It is sandwiched from both sides of the direction.

  The capacitor (1) is manufactured by attaching the mounting bracket (7) to the heat exchange core portion (10) after brazing all the components except the mounting bracket (7).

  Next, a method of attaching the mounting bracket (7) to the heat exchange core portion (10) will be described with reference to FIGS.

  First, as shown by a chain line in FIG. 3, a mounting bracket (7) is prepared in a state in which both sandwiched pieces (21) and (22) are spread so as to be flush with the base portion (20). A crease groove is formed on both upper and lower surfaces of the boundary portion between the base portion (20) of the mounting bracket (7) and the sandwiching pieces (21) and (22). Next, with the first clamping piece (21) bent at a right angle to the base part (20), the arm part (24) is passed between the two adjacent heat exchange tubes (4) from the leeward side. At the same time, the base portion (20) is placed along the outer surface of the side plate (6) in the direction in which the heat exchange tubes (4) are arranged. Thereafter, the second sandwich piece (22) is bent at a right angle to the base portion (20), and the arm portion (24) is forcibly passed through the through hole (25). At this time, the engaging claw (26) elastically deforms when passing through the through hole (25), and when it passes through the through hole (25), it is restored to its original shape, and the upper arm (24) is engaged. The claw (26) engages with the upper edge portion of the through hole (25) in the second clamping piece (22), and the engagement claw (26) of the lower arm portion (24) The sandwiching piece (22) engages with the lower edge portion of the through hole (25). Thus, the sandwiching pieces (21) and (22) are fixed to each other and fixed to the heat exchange pipe (4) and the side plate (6), and the mounting bracket (7) is attached to the heat exchange core portion (10 ).

  The capacitor (1) described above is attached to the vehicle using the mounting bracket (7), and constitutes a car air conditioner using a chlorofluorocarbon refrigerant together with a compressor, a gas-liquid separator, a decompressor, an evaporator, and the like.

  FIG. 5 shows a first modification of a mounting bracket used for a capacitor to which the heat exchanger of the present invention is applied.

  In FIG. 5, two upper and lower mounting brackets (7) provided on both side plates (6) side (upper and lower sides) of the heat exchange core (4) and located at the same position in the longitudinal direction of the side plate (6). The first clamping pieces (21) provided with the arm portions (24) are integrated with each other via a vertical flat plate-like connecting portion (31).

  A method of attaching the two mounting brackets (7) integrated with each other to the heat exchange core (10) is as follows.

  As shown by a chain line in FIG. 5, the first sandwiching pieces (21) are integrated with each other through the connecting portion (31), and the second sandwiching piece (22) is flush with the base portion (20). Prepare a pair of mounting brackets (7) in such a spread state. Folded grooves are formed on both upper and lower surfaces of the boundary portion between the base portion (20) and the second sandwiching piece (22) of the mounting bracket (7). Next, the arm part (24) of the first clamping piece (21) of both mounting brackets (7) is passed between the two adjacent heat exchange tubes (4) from the leeward side, and the base part (20). Along the outer surface of the side plate (6) in the direction in which the heat exchange tubes (4) are arranged. Thereafter, the second sandwich piece (22) is bent at a right angle to the base portion (20), and the arm portion (24) is forcibly passed through the through hole (25). At this time, the engaging claw (26) elastically deforms when passing through the through hole (25), and when it passes through the through hole (25), it is restored to its original shape, and the upper arm (24) is engaged. The claw (26) engages with the upper edge portion of the through hole (25) in the second clamping piece (22), and the engagement claw (26) of the lower arm portion (24) The sandwiching piece (22) engages with the lower edge portion of the through hole (25). Thus, both sandwiched pieces (21) and (22) are fixed to each other and fixed to the heat exchange pipe (4) and the side plate (6), and both mounting brackets (7) are heat exchange core parts ( It can be attached to 10).

  FIGS. 6-8 shows the 2nd modification of the bracket for attachment used for the capacitor | condenser to which the heat exchanger of this invention is applied.

  6 and 7, the mounting bracket (40) is made of plastic or metal and has a flat plate shape along the surface facing the opposite side of the corrugated fins (5) at both ends of the side plate (6). A pair of sandwiching pieces (41) and (42) sandwiching the heat exchange core section (10) from both sides in the ventilation direction are integrally provided on the base section (20).

  The first clamping piece (41) on the leeward side of the mounting bracket (40) has a position where the tip exceeds at least the second heat exchange pipe (4) from both ends, here the fourth heat exchange pipe (4 ), And is fixed to the heat exchange pipe (4). A plurality of arms extending to the first sandwiching piece (41) of the mounting bracket (7) and passing between the adjacent heat exchange tubes (4) toward the second sandwiching piece (42) on the windward side ( 43) is provided. A plurality of arm portions (43) of the first sandwich piece (41) are provided at intervals in the vertical direction and the left-right direction, and the upper arm portion (43) is the lower surface of the upper heat exchange tube (4). The lower arm (43) is along the upper surface of the lower heat exchange tube (4). Engaging claws (44) bent upward are integrally provided at the tip (windward end) of the plurality of upper arms (43), and the windward ends of the plurality of lower arms (43) The part is integrally provided with an engaging claw (44) bent downward. The second clamping piece (42) of the mounting bracket (40) has a tip extending slightly inward in the direction in which the heat exchange tubes (4) are arranged in the side plate (6), and the wind of the side plate (6) It engages with the upper edge (the opposite side to the first sandwiching piece (41)). Then, the engaging claw (44) of the upper arm (43) of the first sandwich piece (41) engages with the windward edge of the upper heat exchange tube (4) and the lower arm. The engaging claw (44) of (43) engages with the windward edge of the lower heat exchange pipe (4), and the second sandwich piece (42) further winds up the edge of the side plate (6). By engaging with the first clamping piece (41) of the mounting bracket (40), the first clamping piece (41) is fixed to the heat exchange pipe (4), and both the clamping pieces (41) (42) are fixed to the side plate. (6) It is sandwiched from both sides in the ventilation direction.

  Next, a method of attaching the mounting bracket (40) to the heat exchange core part (10) will be described with reference to FIGS.

  First, as shown by a chain line in FIG. 7, a mounting bracket (40) is prepared in a state in which the first sandwiching piece (41) is spread so as to be flush with the base portion (20). A crease groove is formed on both the upper and lower surfaces of the boundary portion between the base portion (20) of the mounting bracket (40) and the first clamping piece (41). Next, the base part (20) is along the outer surface of the side plate (6) in the direction in which the heat exchange tubes (4) are arranged, and the second sandwich piece (42) is attached to the windward edge of the side plate (6). Engage. Next, the first clamping piece (41) is bent at a right angle with respect to the base part (20), and the arm part (43) is forced between the two adjacent heat exchange tubes (4) from the leeward side. Pass through. At this time, when the arm (43) and / or the engaging claw (44) are elastically deformed when passing between the two heat exchange tubes (4), and pass between the heat exchange tubes (4), Restoring to the original shape, the engaging claw (44) of the upper arm (43) engages with the windward edge of the upper heat exchange tube (4), and the lower arm (43) The engaging claws (44) engage with the windward edge of the lower heat exchange pipe (4). Thus, the first sandwiching piece (41) is fixed to the heat exchange pipe (4), and the both sandwiching pieces (41) and (42) are sandwiched from both sides in the ventilation direction and attached. A bracket (7) is attached to the heat exchange core (10).

  FIGS. 9-12 shows the 3rd modification of the bracket for attachment used for the capacitor | condenser to which the heat exchanger of this invention is applied.

  In FIG. 9, at least one, here a plurality of mounting brackets (50) and (51) are provided on both side plates (6) side (upper and lower sides) of the heat exchange core (10). A first mounting bracket (50) provided on the side plate (6) side and a second mounting bracket (51) provided on the upper side plate (6) side are arranged in the longitudinal direction of the side plate (6). They are in the same position and integrated with each other.

  One of the two mounting brackets (50) and (51) integrated with each other, here, the first mounting bracket (50) provided on the lower side plate (6) side is made of plastic or metal. The heat exchange core part (10) is passed from both sides in the ventilation direction to the flat base part (20) along the bottom surface facing the opposite side of the corrugated fins (5) at both ends of the side plate (6). A pair of vertical flat sandwiching pieces (52) and (53) are integrally provided, and the sandwiching pieces (52) and (53) are fixed to each other and the heat exchange pipe (4) and the side It is fixed to the plate (6), and further sandwiched from both sides of the side plate (6) in the ventilation direction. Of the two mounting brackets (50) and (51) integrated with each other, the second mounting bracket (51) provided on the upper side plate (6) side here is made of plastic or metal. In the side plate (6), the heat exchange core part (10) in the ventilation direction is passed to the flat base part (20) along the lower surface facing the opposite side of the corrugated fins (5) at both ends. A pair of sandwiching pieces (54) and (55) sandwiched from both sides are integrally provided, and both sandwiching pieces (54) and (55) sandwich the side plate (6) from both sides in the ventilation direction.

  Of the sandwiching pieces (52) and (53) of the first mounting bracket (50), the first sandwiching piece (52) on the leeward side is connected between the adjacent heat exchange tubes (4), in this case, at the lower end. A plurality of arms (56) extending between the heat exchange pipe (4) and the second heat exchange pipe (4) from the bottom and extending toward the second sandwiching piece (53) on the windward side are provided. A through hole (57) through which the arm portion (56) of the first sandwiching piece (52) passes is formed in the second sandwiching piece (53). A plurality of arms (56) of the first sandwich piece (52) are provided at intervals in the vertical and horizontal directions, and the upper arm (56) is formed on the lower surface of the upper heat exchange pipe (4). The lower arm portion (56) extends along the upper surface of the lower heat exchange tube (4). Engaging claws (58) bent upward are integrally provided at the tip (windward end) of the plurality of upper arms (56), and the windward ends of the plurality of lower arms (56). The part is integrally provided with an engaging claw (58) bent downward. Then, the engaging claw (58) of the upper arm portion (56) engages with the upper edge portion (a part of the peripheral edge of the through hole (57)) of the through hole (57) in the second clamping piece (53). At the same time, the engaging claw (58) of the lower arm portion (56) is located at the lower edge portion of the through hole (57) (a part of the peripheral edge of the through hole (57)) in the second clamping piece (53). By engaging, both sandwiching pieces (52) and (53) are fixed to each other and fixed to the heat exchange pipe (4) and the side plate (6), and the side plate (6) is further ventilated. Is sandwiched from both sides. The tip of the second clamping piece (53) of the first mounting bracket (50) extends to a portion between the upper end heat exchange tube (4) and the upper side plate (6). . At the tip of the second clamping piece (53) of the first mounting bracket (50), between the adjacent heat exchange tubes (4), here the upper end heat exchange tube (4) and the second from the top A plurality of arms (59) extending between the heat exchange pipe (4) and the leeward side are provided. A plurality of arm portions (59) of the second sandwiching piece (53) are provided at intervals in the vertical direction and the left-right direction, and the upper arm portion (59) is the lower surface of the upper heat exchange tube (4). The lower arm (59) is along the upper surface of the lower heat exchange tube (4). Engaging claws (61) bent upward are integrally provided at the tip (windward end) of the plurality of upper arms (59), and the windward ends of the plurality of lower arms (59) The part is integrally provided with an engaging claw (61) bent downward.

  Both sandwiching pieces (54) and (55) of the second mounting bracket (51) have tips that extend slightly inward in the direction in which the heat exchange tubes (4) are arranged in the upper side plate (6). The plate (6) is engaged with both side edges in the ventilation direction.

  The first sandwiching piece (52) of the first mounting bracket (50) and the first sandwiching piece (54) of the second mounting bracket (51) include a connecting portion (63) having a vertical flat plate shape. Thus, both mounting brackets (50) and (51) are integrated with each other. A through hole (62) through which the arm portion (59) of the second clamping piece (53) of the first mounting bracket (50) passes is formed in the connecting portion (63). And the engaging claw (61) of the upper arm part (59) of the second clamping piece (53) of the first mounting bracket (50) is the upper edge of the through hole (62) in the connecting part (63). The engaging claw (61) of the lower arm portion (59) is engaged with the portion (a part of the peripheral edge of the through hole (62)), and the lower edge portion of the through hole (62) in the connecting portion (63) By engaging with (a part of the periphery of the through hole (62)), the tip of the second clamping piece (53) of the first mounting bracket (50) and the connecting portion (63) are fixed to each other. Has been.

  Next, a method of attaching the mounting brackets (50) and (51) to the heat exchange core portion (10) will be described with reference to FIGS.

  First, the first sandwiching pieces (52) and (54) are integrated with each other through the connecting portion (63), and the second sandwiching piece (53) of the first mounting bracket (50) is integrated with the base portion (20). ) And two mounting brackets (50) and (51) are prepared so as to be flush with each other. Folded grooves are formed on both upper and lower surfaces of the boundary portion between the base portion (20) of the first mounting bracket (50) and the second sandwiching piece (53). Next, the base portion (20) of both mounting brackets (50) and (51) is along the outer surface of the side plate (6) in the direction in which the heat exchange tubes (4) are arranged, and the first mounting bracket (50) The first sandwich piece (52) and the connecting portion (63) are placed along the leeward side of the heat exchange core section (10), and both the sandwich pieces (54) and (55) of the second mounting bracket (51) are attached. The upper side plate (6) is engaged with both side edges in the ventilation direction.

  Thereafter, the second clamping piece (53) of the first mounting bracket (50) is bent at a right angle with respect to the base portion (20), and the first clamping piece (52) of the first mounting bracket (50) is bent. The arm portion (56) is forcibly passed through the through hole (57) of the second sandwiching piece (53), and the arm portion (59) at the tip of the second sandwiching piece (53) is connected to the connecting portion (63). Pass through the through hole (62). At this time, the engaging claws (58) (61) are elastically deformed when passing through the through holes (57) (62), and when passing through the through holes (57) (62), they are restored to their original shapes, The engaging claws (58) and (61) of the upper arms (56) and (59) of the respective sandwich pieces (52) and (53) are engaged with the upper edge portions of the through holes (57) and (62). The engaging claws (58) and (61) of the lower arms (56) and (59) engage with the lower edge portions of the through holes (57) and (62). In this way, both sandwiched pieces (52) and (53) of the first mounting bracket (50) are fixed to each other and fixed to the heat exchange pipe (4) and the lower side plate (6). (6) Clamping from both sides in the ventilation direction, and both clamping pieces (54) (55) Upper side plate (6) of the second mounting bracket (51) 50) (51) is attached to the heat exchange core section (10).

  The heat exchanger according to the present invention is suitably used as a condenser for a refrigeration cycle constituting a car air conditioner.

(1): Capacitor (heat exchanger)
(2) (3): Header tank
(4): Heat exchange pipe
(5): Corrugated fin
(6): Side plate
(7) (40) (50) (51): Mounting bracket
(10): Heat exchange core
(20): Base part
(21) (41) (52) (54): First clamping piece
(22) (42) (53) (55): Second sandwich piece
(23): Mounting piece
(24) (43) (56) (59): Arm
(25) (57) (62): Through hole
(26) (44) (58) (61): Engagement claw
(31) (63): Connection part

Claims (10)

A pair of header tanks arranged at a distance from each other, a heat exchange core part provided between the two header tanks, and a mounting bracket provided on the heat exchange core part. Are arranged in parallel between both header tanks, with both ends connected to both header tanks, between adjacent heat exchange tubes and outside the heat exchange tubes at both ends. In a heat exchanger composed of fins brazed to a heat exchange pipe and side plates brazed to the fins arranged outside the fins at both ends,
A base part along a surface of the side plate facing away from the fins at both ends of the side plate, a pair of sandwiching pieces provided on the base part and sandwiching the heat exchange core part from both sides in the airflow direction; The mounting piece is provided on the base portion and protrudes outward in the arrangement direction of the heat exchange tubes, and the first sandwiching piece of the two sandwiching pieces of the mounting bracket is the heat exchange tube or the second sandwiching piece. A heat exchanger in which both sandwiched pieces are sandwiched from both sides in the ventilation direction. The heat exchanger according to claim 1, wherein both the sandwiching pieces of the mounting bracket are fixed to each other, and the both sandwiching pieces sandwich the side plate from both sides in the ventilation direction. The first sandwiching piece of the mounting bracket is provided with an arm portion that passes between adjacent heat exchange tubes and extends to the second sandwiching piece side. Similarly, the arm of the first sandwiching piece is provided on the second sandwiching piece. The through-hole through which a part passes is formed, The engaging claw which engages with a part of periphery of the through-hole in a 2nd clamping piece is provided in the front-end | tip part of the arm part of a 1st clamping piece. Heat exchanger. At least one mounting bracket is provided on each side plate side of the heat exchange core portion, and the second sandwich is made between the adjacent heat exchange tubes to the first sandwich pieces of all the mounting brackets. An arm portion extending on one side is provided, and a through-hole through which the arm portion of the first sandwiching piece passes is formed in the second sandwiching piece, and the second sandwiching portion is provided at the distal end portion of the arm portion of the first sandwiching piece. An engaging claw that engages a part of the periphery of the through hole in the piece is provided, and the mounting bracket provided on one side plate side and the mounting bracket provided on the other side plate side The heat exchanger according to claim 3, wherein two mounting brackets at the same position in the longitudinal direction of the plate and at the same position in the longitudinal direction of the side plate are integrated with each other. The first sandwiching piece provided with the arm portions of the two mounting brackets integrated with each other is located on the same side in the ventilation direction, and both the first sandwiching pieces are integrated through the connecting portion. The heat exchanger according to claim 4. At least one mounting bracket is provided on each side plate side of the heat exchange core part, and the mounting bracket provided on one side plate side and the mounting bracket provided on the other side plate side, Two mounting brackets at the same position in the longitudinal direction of the side plate and at the same position in the longitudinal direction of the side plate are integrated with each other,
The first mounting bracket of the two mounting brackets integrated with each other includes a base portion along a surface facing the opposite side of the fins at both ends of the side plate, and a heat exchange core provided on the base portion. A pair of sandwiching pieces sandwiched from both sides in the ventilation direction, and a mounting piece provided on the base portion and projecting outward in the heat exchange tube arrangement direction. Are fixed to each other, and both sandwiched pieces sandwich the side plate from both sides in the ventilation direction.
Of the two mounting brackets integrated with each other, a second mounting bracket includes a base portion along a surface facing the opposite side of the fins at both ends of the side plate, and a side plate provided on the base portion. Ventilation of two mounting brackets integrated with each other, consisting of a pair of clamping pieces sandwiched from both sides in the ventilation direction and mounting pieces provided on the base portion and projecting outside in the direction in which the heat exchange tubes are arranged The heat exchanger according to claim 1, wherein the sandwiching pieces located on the same side in the direction are integrated with each other via a connecting portion. The first sandwiching piece of the first mounting bracket is provided with an arm portion that passes between adjacent heat exchange tubes and extends to the second sandwiching piece side. Similarly, the first sandwiching piece is provided on the second sandwiching piece. A through hole through which the arm portion of the first sandwiching piece passes is formed, and an engagement claw that engages a part of the peripheral edge of the through hole in the second sandwiching piece is provided at the distal end portion of the arm portion of the first sandwiching piece. Both sandwiching pieces of the bracket for the bracket are engaged with both side edges in the ventilation direction of the side plate,
The first sandwiching piece of the first mounting bracket and the first sandwiching piece in the second mounting bracket and the first sandwiching piece located on the same side in the ventilation direction are integrated via a connecting portion, The tip of the second sandwiching piece of the first mounting bracket extends to the vicinity of the second sandwiching piece located on the same side as the second sandwiching piece in the second mounting bracket in the ventilation direction,
The heat exchanger according to claim 6, wherein a distal end portion of the second sandwiching piece of the first mounting bracket and a connecting portion that couples the first sandwiching pieces of both mounting brackets are fixed to each other. Of the two mounting brackets integrated with each other, either one of the leading end portion of the second sandwiching piece of the first mounting bracket and the connecting portion that connects the first sandwiching pieces of both mounting brackets. Are provided with an arm portion extending between the adjacent heat exchange tubes to the other side, and a through hole is formed on the other side through which the arm portion passes. A part of the periphery of the through hole is formed at the tip of the arm portion. The heat exchanger according to claim 7, further comprising an engaging claw that engages with the heat exchanger. The heat exchanger according to claim 1, wherein the first sandwiching piece of the mounting bracket is fixed to the heat exchange pipe, and the both sandwiching parts sandwich the side plate from both sides in the ventilation direction. The first sandwiching piece of the mounting bracket is provided with an arm portion extending between adjacent heat exchange tubes and extending to the second sandwiching piece side, and the mounting bracket in the heat exchange tube is provided at the tip of the arm portion. Engaging claws that engage with the edge of the second sandwiching piece are provided, and the second sandwiching piece of the mounting bracket engages with the edge of the side plate opposite to the first sandwiching piece. The heat exchanger according to claim 9.

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