DE112017007007T5 - heat exchangers - Google Patents

Abstract

A heat exchanger that performs heat exchange between a first fluid and a second fluid includes a first channel plate (11), a second channel plate (12), a flow path member (20), a frame member (30), an insert projection (14), and a Contact tab (15). The insertion projection (14) projects from at least one of the first channel plate (11) and the second channel plate (12) toward the frame member (30) and is inserted into an insertion hole (38) defined in a caulking plate (30). The contact projection (15) projects from at least one of the first channel plate (11) and the second channel plate (12) toward the frame member (30) and is fixed to and in contact with a stopper wall (37) of the caulking plate (30).

Description

Cross reference to related applications

This application is based on the filed on 7 February 2017 Japanese Patent Application No. 2017-020652 and takes these by reference here.

Technical area

The present disclosure relates to a heat exchanger.

State of the art

Conventionally, a heat exchanger is known which comprises a channel formed in a tubular shape and a plurality of flow path components which are layered in the interior of the channel and a heat exchange between a first fluid which flows through a first flow path formed in the interior of the channel, and a performs second fluid flowing through a formed in the interior of the plurality of flow paths second flow path.

Patent Literature 1 discloses a heat exchanger which is a vehicle-mounted intercooler for performing heat exchange between charged air as a first fluid compressed by a supercharger and cooling water as a second fluid. This heat exchanger includes a caulking plate as a frame member fixed by brazing to an opening of a channel formed in a tubular shape. An inlet air tank is fixed to the caulking plate by caulking.

The intake air tank is connected to an intake pipe for introducing intake air into an internal combustion engine.

The heat exchanger disclosed in Patent Literature 1 comprises a groove recessed in a direction perpendicular to an opening area of the caulking plate and provided in a face of the caulking plate opposite to the air inlet tank. The channel and the caulking plate are fixed by brazing while an end portion of the channel is inserted in the groove.

Meanwhile, Patent Literature 2 discloses a heat exchanger which also includes a groove provided in a caulking plate into which an end portion of a passage is inserted. In addition, the heat exchanger disclosed in Patent Literature 2 is arranged such that the channel and the caulking plate are brazed, while an insertion protrusion extending from the end portion of the channel is inserted into an insertion hole provided in a bottom of the groove of the caulking plate is.

Prior art literature

patent literature

• Patent Literature 1: a treatise of WO 2013/092642 A
• Patent Literature 2: JP 5856068 B

Summary of the invention

As a result of extensive researches by the inventors and others, the following problem has been found in the heat exchangers disclosed in Patent Literature 1 and 2. That is, the heat exchanger disclosed in Patent Literature 1 is arranged such that a bottom of the groove provided in the caulking plate is not in contact with an opening edge portion of the passage to form a gap therebetween. In other words, the heat exchanger is configured such that the channel and the caulking plate can relatively move in the direction perpendicular to the opening area of the caulking plate.

The heat exchanger disclosed in Patent Literature 2 also has a problem in a structure, so that it is difficult to accurately determine the insertion depth of the insertion protrusion extending from the end portion of the channel in the insertion hole of the caulking plate. Thus, the channel and the caulking plate can relatively move in the direction perpendicular to the opening area of the caulking plate. As a result, each of the heat exchangers disclosed in Patent Literature 1 and 2 has a fluctuation in a positional relationship between the duct and the caulking plate, so that mountability to a vehicle may be deteriorated.

It is an object of the present disclosure to provide a heat exchanger capable of improving a positioning accuracy between a duct and a frame member.

• eine erste Kanalplatte;
• eine zweite Kanalplatte, die angeordnet ist, um der ersten Kanalplatte zugewandt zu sein, wobei die zweite Kanalplatte zusammen mit der ersten Kanalplatte einen ersten Strömungspfad für das erste Fluid definiert, um durch diesen zu strömen;
• eine Vielzahl von Strömungspfadbauteilen, die innerhalb des ersten Strömungspfads in einer Richtung geschichtet sind, entlang der sich die erste Kanalplatte und die zweite Kanalplatte einander gegenüberliegen, wobei jedes der Vielzahl von Strömungspfadbauteilen einen zweiten Strömungspfad für das zweite Fluid definiert, um durch diesen zu strömen;
• ein Rahmenbauteil, das an einer Öffnung des durch die erste Kanalplatte und die zweite Kanalplatte definierten ersten Strömungspfads angeordnet ist;
• einen Einsatzvorsprung, der in Richtung des Rahmenbauteils von mindestens einer von der ersten Kanalplatte und der zweiten Kanalplatte vorsteht und in ein Einsatzloch eingesetzt ist, das in dem Rahmenbauteil definiert ist; und
• einen Kontaktvorsprung, der in Richtung des Rahmenbauteils von der mindestens einen von der ersten Kanalplatte und der zweiten Kanalplatte vorsteht, wobei der Kontaktvorsprung an dem Rahmenbauteil fixiert ist und im Kontakt mit diesem ist.

In one aspect of the present disclosure, a heat exchanger that performs heat exchange between a first fluid and a second fluid includes:

• a first channel plate;
• a second channel plate arranged to face the first channel plate, wherein the second channel plate together with the first channel plate has a first flow path for the first channel plate first fluid defined to flow therethrough;
• a plurality of flow path components that are layered within the first flow path in a direction along which the first channel plate and the second channel plate face each other, each of the plurality of flow path components defining a second flow path for the second fluid to flow therethrough;
• a frame member disposed at an opening of the first flow path defined by the first passage plate and the second passage plate;
• an insertion protrusion projecting toward the frame member of at least one of the first channel plate and the second channel plate and inserted into an insertion hole defined in the frame member; and
• a contact protrusion protruding toward the frame member from the at least one of the first channel plate and the second channel plate, the contact protrusion being fixed to and in contact with the frame member.

Accordingly, when the insertion protrusion extending from the at least one of the first channel plate and the second channel plate is inserted into the insertion hole, a positional shift between the at least one of the first and second channel plates and the frame member becomes parallel to an opening surface of the frame member prevented. In addition, when the contact projection extending from the at least one of the first passage plate and the second passage plate is brought into contact with the frame member, a variation in one between the passage composed of the first passage plate and the second passage plate becomes , and prevents the frame member formed angle. Thus, the heat exchanger can improve the positioning accuracy between the channel and the frame member.

• eine erste Kanalplatte;
• eine zweite Kanalplatte, die angeordnet ist, um der ersten Kanalplatte zugewandt zu sein, wobei die zweite Kanalplatte zusammen mit der ersten Kanalplatte einen ersten Strömungspfad für das erste Fluid definiert, um durch diesen zu strömen;
• eine Vielzahl von Strömungspfadbauteilen, die innerhalb des ersten Strömungspfads in einer Richtung geschichtet sind, entlang der sich die erste Kanalplatte und die zweite Kanalplatte gegenüberliegen, wobei jedes der Vielzahl von Strömungspfadbauteilen einen zweiten Strömungspfad für das zweite Fluid definiert, um durch diesen zu strömen;
• ein Rahmenbauteil, dass an einer Öffnung des durch die erste Kanalplatte und die zweite Kanalplatte definierten ersten Strömungspfads angeordnet ist;
• einen Flanschabschnitt, der sich von der ersten Kanalplatte in einer Richtung entlang einer Öffnungsfläche des Rahmenbauteils erstreckt, wobei der Flanschabschnitt an dem Rahmenbauteil fixiert und im Kontakt mit diesem ist;
• einen Einsatzvorsprung, der in Richtung des Rahmenbauteils von der ersten Kanalplatte und der zweiten Kanalplatte vorsteht und in ein Einsatzloch eingesetzt ist, das in dem Rahmenbauteil definiert ist; und
• einen Kontaktvorsprung, der in Richtung des Rahmenbauteils von der zweiten Kanalplatte vorsteht und an dem Rahmenbauteil fixiert und im Kontakt mit diesem ist.

In another aspect, a heat exchanger that performs heat exchange between a first fluid and a second fluid includes:

• a first channel plate;
• a second channel plate arranged to face the first channel plate, the second channel plate defining together with the first channel plate a first flow path for the first fluid to flow therethrough;
• a plurality of flow path components that are layered within the first flow path in a direction along which the first channel plate and the second channel plate face, each of the plurality of flow path components defining a second flow path for the second fluid to flow therethrough;
• a frame member disposed at an opening of the first flow path defined by the first passage plate and the second passage plate;
• a flange portion extending from the first channel plate in a direction along an opening surface of the frame member, the flange portion being fixed to and in contact with the frame member;
• an insertion protrusion projecting toward the frame member from the first channel plate and the second channel plate and inserted into an insertion hole defined in the frame member; and
• a contact protrusion projecting toward the frame member from the second channel plate and fixed to and in contact with the frame member.

Accordingly, when the insertion protrusion extending from the second channel plate is inserted into the insertion hole, positional displacement between the second channel plate and the frame member in a direction parallel to the opening surface of the frame member is prevented. In addition, when the flange portion extending from the first channel plate is brought into contact with the frame member, and the contact projection extending from the second channel plate is brought into contact with the frame member, a fluctuation in one between the channel, which is composed of the first channel plate and the second channel plate, and prevents the frame member formed angle. Thus, the heat exchanger can improve the positioning accuracy between the channel and the frame member.

The heat exchanger also includes the flange portion extending in the direction along the opening area of the frame member. Thus, the heat exchanger is configured such that even if the plurality of flow path components and the like are changed in a dimension in the layer direction due to melting of a brazing material provided in each component during brazing in a manufacturing process, the first channel plate and the Frame member can be moved in the slice direction by a Mitgehen the dimensional change. As a result, the heat exchanger can Prevent occurrence of brazing damage in each component.

list of figures

• 1 is a side view of a heat exchanger according to a first embodiment.
• 2 is a view in a direction of arrow II from 1 ,
• 3 is a view in a direction of arrow III from 1 ,
• 4 is a cross-sectional view taken along a line IV-IV from each of the 1 and 2 ,
• 5 FIG. 10 is an exploded view of a channel and a caulking plate of the heat exchanger according to the first embodiment. FIG.
• 6 is an enlarged view of a section VI from 5 ,
• 7 is an enlarged partial view of a second channel plate, an insert projection and a contact projection.
• 8th FIG. 12 is a partial cross-sectional view of the second channel plate, the insert protrusion, and a caulking plate. FIG.
• 9 FIG. 12 is a partial cross-sectional view of the second channel plate, a contact protrusion, and the caulking plate. FIG.
• 10 is a cross-sectional view taken along a line XX from each of the 8th and 9 ,
• 11 is a partial cross-sectional view of a heat exchanger according to a second embodiment.
• 12 is a partial cross-sectional view of a heat exchanger according to a third embodiment.
• 13 FIG. 10 is an enlarged partial view of a second passage plate, an insertion protrusion, and a contact protrusion of a heat exchanger according to a fourth embodiment. FIG.
• 14 FIG. 10 is a partial cross-sectional view of the second channel plate, the contact protrusion and a caulking plate. FIG.
• 15 is a partial cross-sectional view of a heat exchanger according to a fifth embodiment.
• 16 is a view along a direction of an arrow XVI from 15 ,
• 17 is a partial cross-sectional view of a heat exchanger according to a sixth embodiment.
• 18 is an exploded view of a channel and a caulking plate of the heat exchanger according to the sixth embodiment.
• 19 is an enlarged view of a section XIX from 18 ,
• 20 is an enlarged partial view of a first channel plate, an insert projection and a contact projection.
• 21 is a partial cross-sectional view of the first channel plate, the insert projection and a caulking plate.
• 22 is a partial cross-sectional view of the first channel plate, the contact projection and the caulking plate.
• 23 is a cross-sectional view taken along a line XXIII-XXIII from each of the 21 and 22 ,

Description of embodiments

Embodiments of the present disclosure will be described below with reference to the accompanying drawings. Each of the following embodiments will be described by denoting the same or equivalent portions with the same reference numerals.

First Embodiment

The first embodiment will be described with reference to the drawings. A heat exchanger of the present embodiment is a water-cooled intercooler mounted on, for example, a vehicle. The intercooler is mounted on an air intake system of an internal combustion engine (not illustrated) to perform heat exchange between charged air as a first fluid compressed by a supercharger and cooling water as a second fluid. The intercooler adjusts the charged air to a target temperature to improve a filling efficiency of intake air of the internal combustion engine.

The configuration of the intercooler will be described.

As in 1 to 4 is an intercooler 1 a heat exchanger of the so-called drone vessel type, in which a plurality of cooling plates 20 , a variety of outer ribs 26 and the like inside a substantially rectangular tubular channel 10 are layered.

Components of the intercooler 1 are each made of a shell material by rolling and bonding a brazing material to a Surface of, for example, aluminum is obtained. The components are brazed together by heating while a surface of the shell material is coated with flux.

The channel 10 is formed in a substantially rectangular tubular shape, wherein a first channel plate 11 and a second channel plate 12 , the first channel plate 11 disposed facing each other, and an air flow path 13 is as a first flow path in the interior of the channel 10 educated. In particular, the first channel plate comprises 11 primarily a rectangular top plate 111 and two side plates 112 extending from respective sides of the top plate 111 extend substantially vertically. The second channel plate 12 includes primarily a rectangular bottom plate 121 and two side plates 122 extending from respective sides of the bottom plate 121 extend substantially vertically. The first channel plate 11 and the second channel plate 12 are tied together while each of the side plates 122 the second channel plate 12 with the inside of the corresponding one of the side plates 112 the first channel plate 11 partially overlapped.

The air flow path 13 in the interior of the canal 10 is formed, has an opening and the other opening in a charge air flow direction, each with a caulking 30 is provided as a frame member. The caulking plate 30 is formed in a rectangular frame shape. As in 4 is an inlet container 41 on the caulking plate 30 with interposed packing seals 40 caulked and fixed. In 4 are the at the caulking plate 30 caulked and fixed packing seals 40 and the inlet container 41 indicated by dashed lines. The caulking plate 30 includes holding grooves 31 for holding the packing gaskets 40 and ends of the inlet container 41 , The caulking plate 30 also includes outer peripheral walls 32 facing walls positioned on both outer peripheral sides of the rectangular frame shape 33 that of the packing seal 40 and the inlet container 41 facing, and inner peripheral walls 34 which are positioned on the inner peripheral sides of the rectangular frame shape. In addition, the caulking plate includes 30 the holding groove 31 passing through the outer peripheral wall 32 , the facing wall 33 and the inner peripheral wall 34 is defined. The outer peripheral wall 32 the caulking plate 30 is bent to the inner circumference side while the packing seal 40 and the end of the inlet container 41 inside the retaining groove 31 the caulking plate 30 are inserted, and then the inlet container 41 on the caulking plate 30 caulked and fixed.

As described above, the inlet container 41 at each of the one opening and the other opening of the air flow path 13 in the interior of the canal 10 is formed, provided. If the intercooler 1 mounted on a vehicle, these are intake tanks 41 each connected to an intermediate portion of an intake pipe (not illustrated) that allows a supercharger (not illustrated) to communicate with the engine. Thus, charged air compressed by the supercharger passes through the inlet pipe and flows into the air flow path 13 in the interior of the canal 10 is formed by one of the inlet container 41 to get from the other the inlet container 41 to be supplied through the intake pipe of the internal combustion engine.

In the channel 10 are cooling plates 20 as a plurality of flow path components, a plurality of spacer plates 25 , a variety of outer ribs 26 and the like layered. In the following description, a direction in which the plurality of cooling plates 20 layered, referred to as a layer direction W. As in 4 is illustrated is the top plate 111 the first channel plate 11 on one side in the layer direction W arranged. The bottom plate 121 the second channel plate 12 is on the other side in the layer direction W arranged.

Each of the variety of cold plates 20 includes a first plate 21 and a second plate 22 which are each pressed in a predetermined shape. Each of the cooling plates 20 can be formed by bending a single plate pressed into a predetermined shape at the center of the plate and by laminating the bent portions. Between the first plate 21 and the second plate 22 is a cooling water flow path 23 formed as a second flow path.

As in 1 is illustrated is the spacer plate 25 in a plate-like shape between the cooling plates 20 intended. The spacer plate 25 includes a hole (not illustrated) passing in the layer direction W. The cooling plate 20 Also includes a hole (not illustrated) that passes in the layer direction W at a position corresponding to the hole of the spacer plate 25 equivalent. The hole of the spacer plate 25 and the hole of the cooling plate 20 communicate with each other to form two connection passages (not illustrated).

As in 1 to 3 is illustrated includes the first channel plate 11 an inlet pipe 42 for supplying cooling water to the cooling water flow path 23 in the cold plate 20 is formed, and an outlet pipe 43 for draining the cooling water from the cooling water flow path 23 , That of the inlet pipe 42 supplied cooling water passes through one of the communication passages and flows through the cooling water flow paths 23 that exist in the respective cooling plates 20 are formed to from the outlet pipe 43 to flow out through the other of the connection passages.

Between the cooling plates 20 is the outside rib 26 at a position that the spacer plate 25 excludes, provided. The outer rib 26 promotes heat exchange between the charged air and the cooling water.

The configuration described above allows the intercooler 1 a heat exchange between the charged air passing through the air flow path 13 in the channel 10 flows, and the cooling water flowing through the cooling water flow path 23 in the variety of cold plates 20 flows to perform the charged air to a desired temperature.

Next, a method of connecting the channel 10 and the caulking plate 30 in the configuration of the intercooler described above 1 described in detail.

As in 4 is illustrated, is the first channel plate 11 at its end with a flange portion 36 provided in a direction along an opening area 35 the caulking plate 30 extends. The flange section 36 is at each of the top plate 111 and the side plate 112 the first channel plate 11 intended. The flange section 36 is on the facing wall 33 the caulking plate 30 fixed and in contact with this. Before in the manufacturing process of the intercooler 1 a brazing is performed, the flange portion 36 and the facing wall 33 the caulking plate 30 along the opening area 35 relatively mobile. When the brazing is performed in the manufacturing process, a bonded portion serves between the flange portion 36 and the facing wall 33 the caulking plate 30 as a sealing surface, the leakage of the charged air from the air flow path 30 prevented. The intercooler 1 is with the flange section 36 at the end of the first channel plate 11 so that the following effects are achieved during brazing in the manufacturing process when many stages of the cooling plate 20 (For example, in the case of ten or more stages) are provided. Ie the intercooler 1 is arranged such that, even if the plurality of cooling plates 20 Dimensions in the layer direction W due to melting of the brazing material on each of the cooling plates 20 is provided, or the same changes, the first channel plate 11 and the caulking plate 30 can be displaced in the direction W direction by accompanying the dimensional change. Thus, the intercooler 1 an occurrence of brazing damage of the plurality of cold plates 20 , the channel 10 and the like prevent.

Meanwhile, the second channel plate 12 at its end on the inner peripheral wall 34 the caulking plate 30 fixed. Before in the manufacturing process of the intercooler 1 a brazing is performed, the end of the second channel plate 12 and the inner peripheral wall 34 the caulking plate 30 in one direction are relatively moved, the opening area 35 cuts. When the brazing is performed in the manufacturing process, a bonded portion serves between the end of the second channel plate 12 and the inner peripheral wall 34 the caulking plate 30 as a sealing surface, the leakage of the charged air from the air flow path 13 prevented.

As in 5 to 7 is illustrated, is the second channel plate 12 at their end with insert tabs 14 and contact projections 15 provided by the second channel plate 12 in the direction of the caulking plate 30 protrude. The second channel plate 12 , the insert tabs 14 and the contact projections 15 are integrally formed from the same base material. The contact projections 15 are on both sides of each deployment lead 14 intended. Every contact projection 15 extends from the second channel plate 12 to move toward one side in a thickness direction of the second channel plate 12 to be inclined. In particular, the contact projection extends 15 from the second channel plate 12 to circumferentially inward of the caulking plate 30 to be inclined.

Meanwhile, the caulking plate 30 with stopper walls 37 provided, extending from the inner peripheral wall 34 extend toward the inside of the rectangular frame shape. Each of the stopper wall 37 is provided at a position corresponding to the contact protrusions 15 the second channel plate 12 equivalent. The stopper wall 37 is with an insertion hole 38 provided, which passes in the thickness direction. That is, the stopper wall 37 is around the insertion hole 38 in the caulking plate 30 provided around. The insertion hole 38 is at a position of the stopper wall 37 provided that the deployment lead 14 the second channel plate 12 equivalent. The insertion hole 38 in the stopper wall 37 is provided, there is a through hole, which is the insertion projection 14 allows to pass through the through hole.

8th to 10 each illustrate a state in which the insertion protrusion 14 extending from the second channel plate 12 extends into the insertion hole 38 the caulking plate 30 is inserted and the stopper wall 37 the caulking plate 30 and the contact projection 15 are in contact with each other.

An insertion of the insert projection 14 extending from the second channel plate 12 extends into the insertion hole 38 the caulking plate 30 allows positioning of the caulking plate 30 and the second channel plate 12 in a direction parallel to the opening area 35 the caulking plate 30 ,

A contact with the stopper wall 37 the caulking plate 30 and the contact projections 15 extending from the second channel plate 12 extend, allows a precise determination of the depth of use of Einsatzvorsprungs 14 in the insertion hole 38 the caulking plate 30 ,

As described above, when the flange portion 36 at the first channel plate 11 is provided, in contact with the facing wall 33 the caulking plate 30 is brought, are the caulking plate 30 and the first channel plate 11 positioned in one direction, the opening area 35 the caulking plate 30 cuts. If the contact protrusions 15 extending from the second channel plate 12 extend, in contact with the stopper wall 37 the caulking plate 30 are brought, are the caulking plate 30 and the second channel plate 12 positioned in the direction of the opening area 35 the caulking plate 30 cuts. Thus, this configuration allows a variation in one between the channel 10 and the caulking plate 30 trained angle in the intercooler 1 to prevent.

As in 9 Illustrated may be a connection section 39 between the inner peripheral wall 34 and the stopper wall 37 in the caulking plate 30 to be curved by bending. Accordingly, the contact protrusions extend 15 from the second channel plate 12 to move toward one side in the thickness direction of the second channel plate 12 to be inclined. In particular, the contact projections extend 15 from the second channel plate 12 to circumferentially inward of the caulking plate 30 to be inclined. Accordingly, it prevents the contact protrusions 15 with the connecting portion formed as a curved surface 39 be brought into contact. Thus, a positioning accuracy between the second channel plate 12 and the caulking plate 30 elevated.

10 illustrates a state in which the insertion protrusion 14 split and caulked after the insert projection 14 the second channel plate 12 in the insertion hole 38 the caulking plate 30 is used. Caulking by splitting refers to a way in which a load is applied to a part 16 in a section in the insert tab 14 that of the insertion hole 38 is exposed, with a device or the like, which is not illustrated, applied to a shape of a tip portion of the insertion protrusion 14 to deform, causing a detachment of the insert projection 14 from the insertion hole 38 is prevented.

As described above, while the caulking plate 30 and the channel 10 are positioned, become the channel 10 , the cooling plates 20 , the caulking plate 30 , the flange section 36 , the insert tabs 14 , the contact tabs 15 , the inlet pipe 42 , the outlet pipe 43 and the like installed in a heating furnace (not illustrated). Then, each component is fixed by brazing in the heating furnace. Accordingly, the intercooler 1 produced.

The intercooler described above 1 The present embodiment achieves the following effects.

(1) In the present embodiment, the flange portion 36 that extends from the first channel plate 11 along the opening area 35 extends, on the caulking plate 30 fixed and in contact with it. The insert projections 14 coming from the second channel plate 12 protrude, are in the insertion holes 38 the caulking plate 30 inserted and fixed while the contact protrusions 15 in contact with the stopper walls 37 the caulking plate 30 are.

Accordingly, if the insert projections 14 in the insert holes 38 are used, a positional shift between the second channel plate 12 and the caulking plate 30 in the direction parallel to the opening area 35 the caulking plate 30 further prevented. In addition, if the flange section 36 with the caulking plate 30 is brought into contact and the contact projections 15 in contact with the stopper walls 37 be brought, a fluctuation in one between the channel 10 and the caulking plate 30 prevented trained angle. Thus, in the intercooler 1 a positioning accuracy between the channel 10 and the caulking plate 30 be improved.

In the present embodiment, the flange portion extends 36 in the direction along the opening area 35 the caulking plate 30 , Thus, the intercooler 1 an advantageous effect during brazing in the manufacturing process. Ie the intercooler 1 is arranged such that, even if the plurality of cooling plates 20 Dimensions in the layer direction W due to melting of the Brazing material attached to each of the cold plates 20 or the like, change the first channel plate 11 and the caulking plate 30 in the layer direction W by moving the dimensional change are displaced. Thus, in the intercooler, occurrence of brazing damage of the plurality of cold plates 20 , the channel 10 and the like can be prevented. This is effective when many stages of the cooling plate 20 (For example, in the case of ten or more stages) are provided.

(2) In the present embodiment, the insertion hole is 38 a through hole, the insertion projection 14 allows to pass through the through hole.

Accordingly, a positional shift between the second channel plate 12 and the caulking plate 30 in the direction parallel to the opening area 35 the caulking plate 30 be prevented. In addition, it may be from the outside of the caulking plate 30 be visually recognized that the deployment advantage 14 in the insertion hole 38 is safely used.

(3) In the present embodiment, the insertion protrusion becomes 14 split and cauterized while in the insertion hole 38 is used.

Accordingly, the insert projection is prevented 14 from the insertion hole 38 triggers, leaving a state in which the contact protrusions 15 and the stopper wall 37 are in contact with each other, can be maintained. Thus, a fluctuation in one between the channel 10 and the caulking plate 30 trained angle can be prevented.

(4) In the present embodiment, the contact protrusions 15 with the stopper wall 37 around the insertion hole 38 around in the caulking plate 30 are provided, in contact.

Accordingly, the stopper wall 37 around the insertion hole 38 around in the caulking plate 30 is provided as a portion used with the contact projections 15 be brought into contact so that the caulking plate 30 can be simplified in their structure.

(5) In the present embodiment, the contact protrusions 15 on both sides of the insert projection 14 intended.

Accordingly, one on the caulking 30 applied load through the contact projections 15 absorbed when the deployment lead 14 is split and caulked, so that deformation and the like of the caulking plate 30 can be suppressed.

(6) In the present embodiment, the contact protrusions extend 15 from the second channel plate 12 to circumferentially inward of the caulking plate 30 toward one side in the thickness direction of the second channel plate 12 to be inclined.

Accordingly, the contact protrusions 15 and the stopper wall 37 In places brought into contact with each other, from the connection point 39 between the inner peripheral wall 34 and the stopper wall 37 are removed. Thus, even if the connecting portion 39 between the inner peripheral wall 34 the caulking plate 30 and the stopper wall 37 Curved by bending, prevents the contact protrusions 15 in contact with the connection section 39 are brought, which is formed as a curved surface. As a result, in the intercooler 1 a surge in one between the channel 10 and the caulking plate 30 trained angle can be prevented and the positioning accuracy between the channel 10 and the caulking plate 30 be improved.

(7) In the present embodiment, the first channel plate 11 , the second channel plate 12 , the variety of flow path components, the caulking plate 30 , the flange section 36 , the deployment lead 14 , the contact tabs 15 and the like fixed by brazing.

Accordingly, in the intercooler 1 the positioning accuracy between the channel 10 and the caulking plate 30 be improved and leakage of charged air from the connecting portion 39 between the channel 10 and the caulking plate 30 be prevented.

Second Embodiment

A second embodiment will be described. The second embodiment is of the first embodiment in a part of a method of connecting the channel 10 and the caulking plate 30 and is similar in other sections to the first embodiment. Thus, only the portions other than those of the first embodiment will be described.

As in 11 is an insertion hole in the second embodiment 381 in a stopper wall 37 a caulking plate 30 is provided, a hole with a closed end, in a center of the caulking 30 in a thickness direction of the caulking plate 30 is trained. An insert advantage 14 a second channel plate 12 is in the insertion hole 381 used. Even this structure allows one Preventing a positional shift between the second channel plate 12 and the caulking plate 30 in a direction parallel to an opening area 35 the caulking plate 30 using a fit between the insert tab 14 and the insertion hole 381 , Thus, the second embodiment can also achieve operating effects similar to those of the first embodiment.

Third Embodiment

A third embodiment will be described. The third embodiment is also of the first embodiment in a part of a method of connecting the channel 10 and the caulking plate 30 different and is similar in other sections to the first embodiment. Thus, only the different sections from those of the first embodiment are rubbed.

12 illustrates a state in which an insert projection 14 split and caulked after the insert projection 14 a second channel plate 12 into an insertion hole 38 the caulking plate 30 is used. In the third embodiment, the insertion protrusion 14 the second channel plate 12 with a cutout section 17 Mistake. A provision of the cutout section 17 in the deployment lead 14 As described above, a load reduction allows for splitting and caulking of the insert projection 14 to the deployment lead 14 reliable to split and caulk. Thus, the third embodiment can achieve similar operation effects to those of the first embodiment.

Fourth Embodiment

A fourth embodiment will be described. The fourth embodiment is also of the first embodiment in a part of a method of connecting the channel 10 and the caulking plate 30 and is similar in other parts of the first embodiment. Thus, only the portions other than those of the first embodiment will be described.

As in 13 is illustrated, in the fourth embodiment, contact protrusions 15 attached to a second channel plate 12 are provided on a plane formed with the second channel plate 12 is continuous without being bent in the direction of a side in a thickness direction. That is, the second channel plate 12 , the deployment lead 14 and the contact projections 15 are all trained on the continuous level.

As in 14 is illustrated, in the fourth embodiment, a connecting portion 391 between an inner peripheral wall 34 and a stopper wall 37 at a substantially right angle by bending in the caulking plate 30 educated. Accordingly, a positioning accuracy between the second channel plate 12 and the caulking plate 30 also increased in the fourth embodiment. Thus, the fourth embodiment can also achieve operation effects similar to those of the first embodiment.

Fifth Embodiment

A fifth embodiment will be described. The fifth embodiment is also of the first embodiment in a part of a method of connecting the channel 10 and the caulking plate 30 and is similar in other parts of the first embodiment. Thus, only the portions other than those of the first embodiment will be described.

As in 15 and 16 is illustrated in the fifth embodiment has an insert projection 14 a polygonal shape and an inner wall of an insertion hole 38 a curved shape. In particular, has the deployment advantage 14 a rectangular shape and has the inner wall of the insertion hole 38 an oblong shape. In the fifth embodiment, corner portions 141 the deployment lead 14 designed to larger outer dimensions than an inner dimension of the insertion hole 38 to have. Accordingly, the corner sections 141 the deployment lead 14 in the insertion hole 38 pressed along the inner wall. As a result, the deployment advantage 14 in the insertion hole 38 without splitting and caulking the insert projection 14 be fixed. When brazing is performed in this state, the positioning accuracy in the heat exchanger between the channel 10 and the caulking plate 30 be improved. Thus, the fifth embodiment can achieve similar operation effects to those of the first embodiment.

Sixth Embodiment

A sixth embodiment will be described. The sixth embodiment is of the first embodiment in a part of a method of connecting the channel 10 and the caulking plate 30 and is similar in other parts of the first embodiment. Thus, only the portions other than those of the first embodiment will be described.

As in 17 to 20 is illustrated, in the sixth embodiment, no flange portion at one end of a first channel plate 11 intended. Instead, in the sixth embodiment, each is from the end of the first channel plate 11 and one end of a second channel plate 12 with a deployment lead 14 and contact projections 15 Mistake.

The first channel plate 11 , the deployment lead 14 and the contact projections 15 are integrally formed from the same base material. The second channel plate 12 , the deployment lead 14 and the contact projections 15 are integrally formed from the same base material. The insert advantage 14 and the contact projections 15 have specific structures similar to those described in the first embodiment.

Meanwhile includes the caulking plate 30 stopper walls 37 which are provided at positions corresponding to the contact projection 15 the first channel plate 11 and the contact projection 15 the second channel plate 12 correspond. The stopper wall 37 is with an insertion hole 38 provided, which passes in the thickness direction. The insert holes 38 are provided at positions corresponding to the insert projection 14 the first channel plate and the insert projection 14 the second channel plate 12 correspond.

21 to 23 each illustrate a state in which the insertion protrusion 14 that extends from the first channel plate 11 extends into the insertion hole 38 the caulking plate 30 is inserted, and the contact projections 15 extending from the first channel plate 11 extend, in contact with the stopper wall 37 the caulking plate 30 are.

An insertion of the insert projections 14 extending from the first channel plate 11 or the second channel plate 12 extend into the insertion holes 38 the caulking plate 30 allows positioning of the caulking plate 30 and the channel 10 in a direction parallel to an opening area 35 the caulking plate 30 ,

Contacting the contact tabs 15 extending from the first channel plate 11 or the second channel plate 12 extend, with the stopper walls 35 the caulking plate 30 allows accurate determination of the depth of use of the insert projection 14 in the insertion hole 38 the caulking plate 30 , As a result, the channel 10 and the caulking plate 30 positioned in one direction, the opening area 35 the caulking plate 30 cuts. Thus, this configuration allows a variation of one between the channel 10 and the caulking plate 30 trained angle in the intercooler 1 to prevent.

In the above-described sixth embodiment, the insertion protrusion is 14 coming from the first channel plate 11 or the second channel plate 12 protrudes into the insertion hole 38 the caulking plate 30 inserted and fixed while the contact projection 15 in contact with the stopper wall 37 the caulking plate 30 is.

Accordingly, when the deployment lead 14 in the insertion hole 38 is inserted, a position shift between the channel 10 and the caulking plate 30 in the direction parallel to the opening area 35 the caulking plate 30 further prevented. In addition, when the contact protrusions 15 extending from the first channel plate 11 or the second channel plate 12 extend, in contact with the stopper wall 37 be brought, a surge in one between the channel 10 and the caulking plate 30 prevented trained angle. Thus, in the intercooler 1 a positioning accuracy between the channel 10 and the caulking plate 30 be improved. That is, the sixth embodiment can also achieve operation effects similar to those of the first embodiment.

(Another embodiment)

1. (1) In jeder der obigen Ausführungsformen ist der wassergekühlte Zwischenkühler 1 als ein Beispiel des Wärmetauschers beschrieben. Dagegen kann in einer anderen Ausführungsform der Wärmetauscher beispielsweise ein Abgasrückführungskühler (EGR-Kühler) oder eine Abgaswärmerückgewinnungsvorrichtung sein.
2. (2) In jeder der obigen Ausführungsform hat der Einsatzvorsprung 14 eine polygonale Form und das Einsatzloch 38 eine längliche Form. Dagegen sind in einer anderen Ausführungsform die Formen des Einsatzvorsprungs 14 und des Einsatzlochs 38 nicht beschränkt. Beispielsweise kann der Einsatzvorsprung eine zylindrische säulenförmige Form oder eine konische Form und das Einsatzloch 38 eine polygonale Form, eine kreisförmige Form oder eine elliptische Form haben.

The present disclosure is not limited to the above-described embodiments, and may be modified as appropriate. In addition, the above-described embodiments are not independent from each other and can be conveniently combined except in a case where a combination is obviously impossible. In each of the above embodiments, it goes without saying that the elements constituting the embodiments are not necessarily indispensable unless it is a case in which they are specified as indispensable in particular, and a case in which they are obvious basically indispensable. When the number of components, a numerical value, an amount and a numerical value of a region or the like are described in each of the above-described embodiments, the values are not limited to a specific number, respectively, unless it is a case in which they are specified in particular as indispensable, and a case in which they are obviously limited to a specific number and the like, as a matter of course. Similarly, when describing a shape, a positional relationship, and the like of a component and the like in each of the above-described embodiment, the present invention is not limited to the shape, positional relationship, and the like unless specifically specified is a case where a shape, positional relationship or the like is basically limited to a specific one and the like.

1. (1) In each of the above embodiments, the water-cooled intercooler 1 as an example of the heat exchanger. In contrast, in another embodiment, the heat exchanger may be, for example, an exhaust gas recirculation cooler (EGR cooler) or an exhaust heat recovery device.
2. (2) In each of the above embodiments, the insertion protrusion 14 a polygonal shape and the insertion hole 38 an oblong shape. In contrast, in another embodiment, the shapes of the insert projection 14 and the insertion hole 38 not limited. For example, the insertion protrusion may be a cylindrical columnar shape or a conical shape and the insertion hole 38 have a polygonal shape, a circular shape or an elliptical shape.

(Summary)

According to a first aspect illustrated in any or all of the above-described embodiments, the heat exchanger performs heat exchange between the first fluid and the second fluid and includes the first passage plate, the second passage plate, the plurality of flow path components, the frame member, the flange portion Insert tab and the contact tab. The first channel plate and the second channel plate are oppositely arranged to define the first flow path through which the first fluid flows. The plurality of flow path members each have the second flow path through which the second fluid flows, and are stacked in the first flow path in a direction in which the first passage plate and the second passage plate face each other. The frame member is provided at the opening of the first flow path formed by the first passage plate and the second passage plate. The insertion projection projecting toward the frame member of at least one of the first passage plate and the second passage plate is inserted into the insertion hole provided in the frame member. The contact projection projecting toward the frame member from the at least one of the first channel plate and the second channel plate is fixed to and in contact with the frame member.

In a second aspect, the heat exchanger performs heat exchange between the first fluid and the second fluid, and includes the first channel plate, the second channel plate, the plurality of flow path components, the frame member, the flange portion, the insert protrusion, and the contact protrusion. The first channel plate and the second channel plate are oppositely arranged to define the first flow path through which the first fluid flows. The plurality of flow path members each have the second flow path through which the second fluid flows, and are stacked in the first flow path in a direction in which the first passage plate and the second passage plate face each other. The frame member is provided at the opening of the first flow path formed by the first passage plate and the second passage plate. The flange portion extends from the first channel plate in the direction along the opening surface of the frame member and is fixed to and in contact with the frame member. The insertion protrusion projects from the second channel plate toward the frame member and is inserted into the insertion hole provided in the frame member. The contact projection protrudes from the second channel plate toward the frame member and is fixed to and in contact with the frame member.

According to a third aspect, the insertion hole is a through hole that allows the insertion protrusion to pass through the through hole.

Accordingly, shifting of the second passage plate and the frame member in the direction parallel to the opening face can be prevented.

According to a fourth aspect, the insertion hole is the hole having a closed end formed in a center of the frame member in the thickness direction of the frame member.

Even this structure makes it possible to prevent displacement of the second channel plate and the frame member in the direction parallel to the opening surface.

According to a fifth aspect, the insertion protrusion has a polygonal shape, the inner wall of the insertion hole is curved, and the corners of the insertion protrusion and the inner wall of the insertion hole are fixedly connected to each other.

Accordingly, disengagement of the insertion protrusion from the insertion hole can be prevented by pressing the corner portion of the insertion protrusion having a polygonal shape into the insertion hole along the inner wall thereof. Thus, a state in which the contact projection and the frame member are in contact with each other can be maintained, so that positioning accuracy between the channel and the frame member can be improved.

According to a sixth aspect, the insert projection is split and caulked while being inserted in the insertion hole.

Accordingly, disengagement of the insertion protrusion from the insertion hole is prevented. Thus, a state in which the contact projection and the frame member are in contact with each other can be maintained, so that positioning accuracy between the channel and the frame member can be improved.

According to a seventh aspect, the contact projection is brought into contact with the stopper wall provided around the insertion hole in the frame member.

Accordingly, when the stopper wall provided around the insertion hole in the frame member is used as a portion with which the contact projection is brought into contact, the structure of the frame member can be simplified.

According to the eighth aspect, the contact protrusion is composed of two contact protrusions provided on both sides of the insertion protrusion.

Accordingly, the contact protrusions absorb a load applied to the frame member when the insert protrusion is split and caulked, so that deformation or the like of the frame member can be suppressed.

According to a ninth aspect, the second passage plate, the insertion protrusion, and the contact protrusion are integrally formed of a single base material. The contact projection extends from the second channel plate to be inclined toward one side in the thickness direction of the second channel plate.

Accordingly, when the connecting portion between a wall surface connected to the end of the second passage plate and a wall surface with which the contact protrusion is brought into contact is formed in the frame member as a curved surface, the contact protrusion is prevented from interfering with the contact protrusion curved surface of the connecting portion is brought into contact. Thus, in the heat exchanger, the positioning accuracy between the channel and the frame member can be improved.

According to a tenth aspect, the contact protrusion extends from the second channel plate to be circumferentially inclined inwardly of the frame member toward one side in the thickness direction.

Accordingly, when the connecting portion between a wall surface connected to the end of the second communication channel plate and a wall surface with which the contact protrusion is brought into contact is prevented in the frame member as a curved surface, that the contact protrusion is prevented from being curved Surface of the connecting portion is brought into contact.

According to an eleventh aspect, the first channel plate, the second channel plate, the plurality of flow path components, the frame member, the flange portion, the insert projection and the contact projection are fixed by brazing.

Accordingly, in the heat exchanger, the positioning accuracy between the channel and the frame member can be improved, and leakage of a fluid from the connecting portion between the channel and the frame member can be prevented.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• JP 2017020652 [0001]
• WO 2013/092642 A [0007]
• JP 5856068 B [0007]

Claims (11)

A heat exchanger that performs a heat exchange between a first fluid and a second fluid, the heat exchanger comprising a first channel plate (11); a second channel plate (12) disposed to face the first channel plate, the second channel plate defining, together with the first channel plate, a first flow path (13) for the first fluid to flow therethrough; a plurality of flow path components (20) layered within the first flow path in a direction along which the first channel plate and the second channel plate face each other, each of the plurality of flow path components defining a second flow path (23) for the second fluid to flow through it; a frame member (30) disposed at an opening of the first flow path defined by the first passage plate and the second passage plate; an insert protrusion (14) protruding toward the frame member of at least one of the first channel plate and the second channel plate and inserted into an insertion hole (38, 381) defined in the frame member; and a contact protrusion (15) projecting toward the frame member from the at least one of the first channel plate and the second channel plate, the contact protrusion being fixed to and in contact with the frame member. A heat exchanger that performs a heat exchange between a first fluid and a second fluid, the heat exchanger comprising a first channel plate (11); a second channel plate (12) disposed to face the first channel plate, the second channel plate defining, together with the first channel plate, a first flow path (13) for the first fluid to flow therethrough; a plurality of flow path components (20) layered within the first flow path in a direction along which the first channel plate and the second channel plate face each other, each of the plurality of flow path components defining a second flow path (23) for the second fluid to flow through it; a frame member (30) disposed at an opening of the first flow path defined by the first passage plate and the second passage plate; a flange portion (36) extending in the first channel plate in a direction along an opening surface (35) of the frame member, the flange portion being fixed to and in contact with the frame member; an insertion protrusion (14) projecting toward the frame member from the first channel plate and the second channel plate and inserted into an insertion hole (38, 381) defined in the frame member; and a contact projection (15) projecting toward the frame member from the second channel plate and fixed to and in contact with the frame member. Heat exchanger according to Claim 1 or 2 wherein the insertion hole (38) is a through hole that allows the insertion projection to pass therethrough. Heat exchanger according to Claim 1 or 2 wherein the insertion hole (381) is a hole having a closed end in a center of the frame member in a thickness direction of the frame member. Heat exchanger according to one of Claims 1 to 4 wherein the insertion protrusion has a polygonal shape, the inner wall of the insertion hole is curved, and a corner (141) of the insertion protrusion and the inner wall of the insertion hole are fixedly connected to each other. Heat exchanger according to one of Claims 1 to 4 wherein the insert projection is split and caulked when inserted into the insertion hole. Heat exchanger according to one of Claims 1 to 6 wherein the contact protrusion is in contact with a stopper wall (37) around the insertion hole in the frame member. Heat exchanger according to one of Claims 1 to 7 wherein the contact projection consists of two arranged on both sides of the insert projection contact projections. Heat exchanger according to one of Claims 1 to 8th wherein the second channel plate, the insert protrusion, and the contact protrusion are integrally formed of a single base material, and the contact protrusion extends from the second channel plate toward one side of a thickness direction of the second channel plate. Heat exchanger according to Claim 9 wherein the contact protrusion extends from the second passage plate to be inclined circumferentially inwardly from the frame member toward a thickness direction side of the second passage plate. Heat exchanger according to one of Claims 1 to 10 wherein the first channel plate, the second channel plate, the plurality of flow path components, the frame member, the flange portion, the insert protrusion and the contact protrusion are fixed by brazing.

Images