CN218270293U - Heat exchanger and vehicle air conditioner - Google Patents

Abstract

The utility model provides a heat exchanger and vehicle air conditioner, the utility model discloses a heat exchanger includes last hydroecium, lower header and flat tub of unit, go up hydroecium and lower header and all include that the lock is formed with the mainboard and the apron of heat transfer agent passageway, flat tub of unit includes a plurality of flat pipes, a plurality of flat pipes are arranged along self thickness direction interval in proper order, the both ends of each flat pipe all with the mainboard connection of last hydroecium and lower header, be connected with a plurality of baffles on the mainboard, each baffle all keeps off and puts one side at the mainboard dorsad of apron, and all with cover connection, a plurality of baffles are arranged along the orientation of arranging of flat pipe interval in proper order. The heat exchanger, through set up a plurality of baffles on the mainboard, can improve the bearing capacity of hydroecium, and the life of extension heat exchanger, the setting of a plurality of baffles is conveniently bent in assembling process, does benefit to and improves production efficiency.

Description

Heat exchanger and vehicle air conditioner

Technical Field

The utility model relates to a heat transfer device technical field, in particular to heat exchanger. And simultaneously, the utility model discloses still relate to a vehicle air conditioner who uses this heat exchanger.

Background

A heat exchanger is a device used to transfer heat from a hot fluid to a cold fluid to meet specified process requirements. The heat exchanger mainly comprises a laminated heat exchanger and a parallel flow type evaporator, wherein the laminated evaporator is formed by welding two aluminum plates which are punched into complex shapes together to form a refrigerant channel, and a wave-shaped radiating fin is clamped between every two combined channels. The parallel flow type evaporator is a compact heat exchanger consisting of a water chamber, double rows of porous flat tubes and louver fins.

The current parallel flow heat exchanger mainly comprises a D-type tube evaporator and a half tube evaporator according to different water chamber structures. The water chamber of the existing half-tube heat exchanger is formed by riveting and buckling an M-shaped main plate and a cover plate, but the problems of poor welding strength and insufficient pressure bearing capacity exist due to the defects of the structure of the water chamber, so that the service life of the heat exchanger is influenced.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a heat exchanger to do benefit to the life who improves the heat exchanger.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

a heat exchanger comprises an upper water chamber and a lower water chamber which are arranged at intervals, and a flat pipe unit connected between the upper water chamber and the lower water chamber;

the upper water chamber and the lower water chamber respectively comprise a main board and a cover board which are buckled to form the heat exchange agent channel, the flat pipe unit comprises a plurality of flat pipes, the flat pipes are sequentially arranged at intervals along the thickness direction of the flat pipes, and two ends of each flat pipe are connected with the main boards of the upper water chamber and the lower water chamber;

the flat tube type heat exchanger is characterized in that a plurality of baffles are connected to the main plate, the baffles are arranged on one side, back to the main plate, of the cover plate and connected with the cover plate, and the baffles are sequentially arranged at intervals along the arrangement direction of the flat tubes.

Furthermore, upper communication holes corresponding to the flat tubes are formed in a main board of the upper water chamber, and a heat exchange agent channel in the upper water chamber is respectively communicated with the upper communication holes; the main board of the lower water chamber is provided with lower communication holes corresponding to the flat tubes, and the heat exchange agent channel in the lower water chamber is respectively communicated with the lower communication holes; the edge of the upper communicating hole is provided with a flanging bent towards the outside of the upper water chamber, and/or the edge of the lower communicating hole is provided with a flanging bent towards the outside of the lower water chamber; two ends of the flat pipes are respectively inserted in the corresponding upper communication holes or the corresponding lower communication holes, the corresponding flat pipes and the turned edges are welded into a whole, and a communication channel for communicating the two heat exchange agent channels is arranged in each flat pipe.

Furthermore, each flat pipe with all be equipped with limit structure between the mainboard, limit structure is used for restricting flat pipe in last intercommunicating pore or the cartridge degree of depth in the intercommunicating pore down.

Further, the end parts of the upper water chamber and the lower water chamber are respectively provided with an inlet and outlet assembly or a blocking plate; the inlet and outlet assembly comprises a connecting piece, an inlet transition pipe and an outlet transition pipe; the connecting piece is connected with the main board and the cover plate; the connecting piece is provided with a first inserting groove, and the inlet transition pipe is inserted into the first inserting groove; and/or a second inserting groove is arranged on the connecting piece, and the outlet transition pipe is inserted in the second inserting groove.

Furthermore, an insertion groove is formed in the connecting piece, and the main board and the cover plate are inserted into the insertion groove; or, both sides of the connecting piece are respectively provided with a mainboard slot, both sides of the mainboard are respectively inserted into the corresponding mainboard slots, and the cover plate is connected with the connecting piece.

Further, the flat pipe units are at least two layers arranged side by side; the heat exchange agent channels in the upper water chamber comprise heat exchange agent distributing channels which are respectively arranged corresponding to each layer of flat tube unit; the lower header comprises a runner plate, the runner plate is clamped between the main plate and the cover plate of the lower header, an intermediate channel is arranged on the runner plate, and the intermediate channel is used for communicating the communicating channels of the adjacent flat tube units.

Furthermore, the heat transfer agent distributing channel comprises a plurality of branch channels extending along the arrangement direction of the flat tubes, the branch channels are arranged at intervals in the arrangement direction orthogonal to the flat tubes, and the cross section of each branch channel is U-shaped.

Furthermore, a partition board slot communicated with the heat-transfer agent distributing channel is constructed in a cover plate of the upper water chamber, a partition board is fixedly connected in the partition board slot, and the partition board is matched with the middle channel to form a plurality of heat transfer processes in the heat exchanger.

Furthermore, at least one side of the flat pipe is provided with a radiating fin which is in a wave shape extending along the length direction of the flat pipe; and/or, the heat exchanger still includes two sideboard, two the sideboard all is connected between the hydroecium at both ends, each flat pipe is located two between the sideboard.

Compared with the prior art, the utility model discloses following advantage has:

the heat exchanger, through set up a plurality of baffles on the mainboard, can improve the bearing capacity of hydroecium, and the life of extension heat exchanger, the setting of a plurality of baffles is conveniently bent in assembling process, does benefit to and improves production efficiency.

In addition, the flanging is arranged at the edge of the upper communicating hole and/or the lower communicating hole, so that the connection reliability of the flat pipe and the main board is improved, the existing middle board and the existing runner board can be omitted, the water chamber can be made of the main board and the cover plate, the number of parts can be reduced, the total weight is reduced, and the production cost is reduced. Set up limit structure between flat pipe and main part, be convenient for find the correct mounted position of flat pipe fast, do benefit to and improve assembly efficiency.

The end parts of the upper water chamber and the lower water chamber are respectively provided with an inlet and outlet assembly or a blocking plate, so that the connection reliability is improved, the sealing performance of the water chambers is improved, the connecting piece is provided with a first inserting groove and a second inserting groove, the connection reliability of the connecting piece and the inlet transition pipe or the outlet transition pipe is improved, and the pressure resistance is improved. The connection is provided with an insertion slot or a mainboard insertion slot, which are used for improving the connection reliability of the connecting piece, the mainboard and the cover plate.

The flat pipe units are arranged into multiple layers, so that the heat exchange performance of the heat exchanger can be improved, the branch heat exchange agent channels comprise a plurality of branch channels with cross sections in U shapes, the branch channels provide the flow cross sections of the heat exchange agents, the volume is reduced in comparison with the traditional heat exchanger, the wall thickness is thicker, and the requirement for high pressure bearing can be well met. The arrangement of the radiating fins is beneficial to improving the heat exchange performance. The heat exchanger comprises two side plates, so that the flat tubes are protected conveniently.

Another object of the utility model is to provide a vehicle air conditioner, adopt as above in the vehicle air conditioner the heat exchanger.

Vehicle air conditioner and aforementioned heat exchanger have the same beneficial effect for prior art, no longer give unnecessary details here.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural diagram of a heat exchanger according to an embodiment of the present invention;

FIG. 2 is an exploded view of FIG. 1;

fig. 3 is a schematic structural diagram of an upper cover plate according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an upper main board according to an embodiment of the present invention;

fig. 5 is a schematic view of a partial structure of the upper water chamber according to the embodiment of the present invention;

FIG. 6 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 5;

FIG. 7 is a schematic view of the connector of FIG. 1;

FIG. 8 is a schematic view of the structure of FIG. 7 from another perspective;

fig. 9 is a schematic structural view of a flow field plate according to an embodiment of the present invention;

fig. 10 is another schematic structural diagram of a heat exchanger according to an embodiment of the present invention;

FIG. 11 is an exploded view of FIG. 10;

FIG. 12 is a partial schematic structure view of the upper water chamber in FIG. 10;

FIG. 13 is a cross-sectional view taken along line B-B of FIG. 12;

FIG. 14 is a schematic view of the connector of FIG. 10;

fig. 15 is a schematic structural diagram of fig. 14 from another view angle.

Description of the reference numerals:

1. a water feeding chamber; 101. an upper main board; 1011. an upper communication hole; 1012. flanging; 1013. a baffle plate; 102. an upper cover plate; 103. a heat transfer agent distribution channel; 1031. a branch channel;

2. a water discharging chamber; 201. a lower main board; 2011. a lower communication hole; 202. a lower cover plate; 203. a runner plate; 2031. a middle channel;

3. flat tube units; 301. flat tubes; 3011. a communication channel; 3012. a limiting groove;

4. an inlet-outlet assembly; 401. a connecting member; 4011. a first insertion groove; 4012. a second insertion groove; 4013. inserting the slots; 4014. a main board slot; 402. an inlet transition duct; 403. an outlet transition duct;

5. connecting sheets; 6. a blocking plate; 7. a sideboard.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In addition, in the description of the present invention, the terms "mounted," "connected," and "connecting" are to be construed broadly unless otherwise specifically limited. For example, the connection may be fixed, detachable, or integrated; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in conjunction with the specific situation for a person of ordinary skill in the art.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example one

The present embodiment relates to a heat exchanger to prolong the service life thereof, and an exemplary structure of the heat exchanger of the present embodiment is shown in fig. 1 and 2 for the above purpose. In the overall structure, the heat exchanger mainly comprises an upper water chamber 1 and a lower water chamber 2 which are arranged at intervals, and a flat pipe unit 3 connected between the upper water chamber 1 and the lower water chamber 2.

For better understanding of the heat exchanger of the present embodiment, the structure of the flat tube unit 3 is described first, and the flat tube unit includes a plurality of flat tubes 301, the flat tubes 301 are sequentially arranged along the thickness direction thereof at intervals, and both ends of each flat tube 301 are connected to the upper water chamber 1 and the lower water chamber 2. In fig. 2, the flat tube units 3 are at least two layers arranged side by side, and the flat tube units 3 are set to be multiple layers, so that the heat exchange performance of the heat exchanger can be better improved, and the stacking direction of the flat tube units 3 is orthogonal to the thickness direction of the flat tubes 301.

It should be understood herein that the number of layers of the flat tube units 3 is not limited to two, such as one layer, three layers, four layers, etc., and preferably, the number of layers of the flat tube units 3 is 2-5 for easy processing and arrangement. The structure of flat pipe 301 can refer to current structure, all is formed with a plurality of intercommunication passageways 3011 in each flat pipe 301, and intercommunication passageway 3011 link up the length direction setting of flat pipe 301, and a plurality of intercommunication passageways 3011 interval in proper order arrange along the width direction of flat pipe 301.

Next, the structure of the upper water chamber 1 and the lower water chamber 2 will be described, as a preferred embodiment, each of the upper water chamber 1 and the lower water chamber 2 includes a main plate and a cover plate, a heat exchanger channel is formed by buckling the main plate and the cover plate, and each of the upper water chamber 1 and the lower water chamber 2 is connected to each of the flat tubes 301 through the main plate. For convenience of description, the main plate of the upper header 1 is referred to as an upper main plate 101, the cover plate of the upper header 1 is referred to as a lower cover plate 202, the main plate of the lower header 2 is referred to as a lower main plate 201, and the cover plate of the lower header 2 is referred to as a lower cover plate 202.

The structure of the upper cover plate 102 can be seen from fig. 3, a plurality of branch passages 1031 are formed on one side of the upper cover plate 102 facing the upper main plate 101, the plurality of branch passages 1031 are arranged at intervals in the arrangement direction orthogonal to the flat tubes 301, each branch passage 1031 extends along the arrangement direction of the flat tubes 301, and the cross section of each branch passage 1031 is U-shaped. Due to the arrangement of the structure, the cross section of the upper cover plate 102 is approximately wave-shaped, and the plurality of branch channels 1031 are used for providing the cross section area for the circulation of the heat exchange agent, so that the internal volume is reduced and the wall thickness is thicker compared with the traditional heat exchanger, and the requirement of high pressure bearing can be better met.

Here, still referring to fig. 3, each adjacent two of the branch passages 1031 are in one group, and this group of branch passages 1031 is referred to as a heat exchanger sub-passage 103, the number of heat exchanger sub-passages 103 corresponds to the number of flat tube units 3, that is, one group of flat tube units 3 corresponds to two branch passages 1031, and the two groups of heat exchanger sub-passages 103 on the upper cover plate 102 constitute the upper heat exchanger passages in the upper water chamber 1.

One shape of the upper main plate 101 in the processing process is shown in fig. 4, and the upper main plate includes a main plate and bent plates connected to two sides of the main plate, each bent plate is connected with a plurality of baffles 1013, and the baffles 1013 are sequentially arranged at intervals along the arrangement direction of the flat tubes 301. When the upper main plate 101 and the upper cover plate 102 are assembled, each baffle 1013 is bent toward the upper cover plate 102, so that each baffle 1013 is blocked on the side of the cover plate back to the main plate and is connected with the upper cover plate 102 by welding. In this structure, through set up a plurality of baffles 1013 on the mainboard, can improve the pressure-bearing performance of hydroecium, and the life of extension heat exchanger, the setting of a plurality of baffles 1013 is conveniently bent in assembling process, does benefit to and improves production efficiency.

As a preferred embodiment, the upper main plate 101 is provided with upper communicating holes 1011 corresponding to the flat tubes 301, the upper heat exchanger channels in the upper water chamber 1 are respectively communicated with the upper communicating holes 1011, the edge of the upper communicating holes 1011 is provided with flanges 1012 bending towards the outside of the upper water chamber 1, the flat tubes 301 are inserted into the corresponding upper communicating holes 1011, the corresponding flat tubes 301 and the flanges 1012 are welded into a whole, and the flat tubes 301 are respectively provided with communicating channels 3011 communicating the heat exchanger channels of the upper water chamber 1 and the heat exchanger channels of the lower water chamber 2. In a preferred embodiment, the upper communication hole 1011 extends along the width direction of the flat tube 301, and notches are formed at the corresponding flanges 1012 at both ends of the upper communication hole 1011 in the length direction, so as to facilitate processing.

The flanging 1012 is arranged at the edge of the upper communicating hole 1011, so that the connection reliability of the flat pipe 301 and the upper main board 101 is improved, the existing middle board and runner board can be omitted, the water chamber can be made of two components of the main board and the cover board, the number of parts can be reduced, the total weight is reduced, and the production cost is reduced.

All be equipped with limit structure between each flat pipe 301 and the last mainboard 101, limit structure is used for limiting flat pipe 301 in the cartridge degree of depth of last intercommunicating pore 1011, so be convenient for find flat pipe 301's correct mounted position fast, do benefit to and improve assembly efficiency. For example, in this embodiment, the limiting structure includes two limiting grooves 3012 formed at one end of flat pipe 301 facing upper main board 101, two limiting grooves 3012 are disposed at two sides of flat pipe 301 in the width direction, and when flat pipe 301 and upper main board 101 are assembled, the bottom wall of limiting groove 3012 may abut against raised edge 1012 on upper main board 101, so as to limit the insertion depth of flat pipe 301.

It should be noted that the limiting structure may be provided with other structures for limiting the insertion depth of flat tube 301 besides limiting groove 3012, for example, a connecting plate may be provided between flat tubes 301 corresponding to adjacent flat tube units 3, and in the process of inserting flat tube 301, the inserting position of flat tube 301 may be limited by abutting the connecting plate against upper main plate 101.

The structure of the lower water chamber 2 is similar to that of the upper water chamber 1, and the connecting member 401 of the lower main plate 201 has a plurality of baffles 1013, and the baffles 1013 of the lower main plate 201 and the baffles 1013 of the upper main plate 101 have similar structures and functions, and will not be described in detail herein. In addition, the lower main plate 201 of the lower header 2 is provided with lower communication holes 2011 corresponding to the flat tubes 301, the lower heat exchanger channels in the lower header 2 are respectively communicated with the lower communication holes 2011, the edges of the lower communication holes 2011 are provided with flanges 1012 bending outward toward the lower header 2, and two ends of the flat tubes 301 are respectively inserted into the corresponding lower communication holes 2011 and are connected with the flanges 1012 in a welded manner.

It should be understood here that, in addition to providing the flanges 1012 on both the upper main plate 101 and the lower main plate 201, it is, of course, also possible to provide the flanges 1012 only on the upper main plate 101 or only on the lower main plate 201. Moreover, the above-mentioned limit structure between upper main plate 101 and flat pipe 301 is also present between lower main plate 201 and flat pipe 301, and the difference is that the limit structure between lower main plate 201 and flat pipe 301 is used to limit the insertion depth of flat pipe 301 in lower communication hole 2011.

In a preferred embodiment, lower cover plate 202 has a flat plate shape, and lower header 2 further includes a flow channel plate 203, wherein flow channel plate 203 is sandwiched between lower main plate 201 and lower cover plate 203 of lower header 2, and intermediate channel 2031 is provided on flow channel plate 203, and intermediate channel 2031 is used for connecting communication channels 3011 of adjacent flat tube units 3. It should be noted that, in addition to the shape of the lower cover 202 being a flat plate, the shape of the lower cover 202 may be a shape similar to that of the upper cover 102, and in this case, the middle channel 2031 may be provided on the side of the lower cover 202 facing the lower main plate 201.

In a preferred embodiment, the inlet/outlet assembly 4 or the blocking plate 6 is provided at the end of the upper chamber 1 and the lower chamber 2, respectively. For example, as shown in fig. 2, one end of the upper water chamber 1 is provided with an inlet/outlet assembly 4, and the other end is provided with a blocking plate 6, and both the inlet/outlet assembly 4 and the blocking plate 6 are connected to the upper main plate 101 and the upper cover plate 102. It should be understood that in the present embodiment, the lower main plate 201 and the lower cover plate 202 are connected together without providing the inlet/outlet assembly 4 or the blocking plate 6, however, when the lower main plate 201 and the lower cover plate 202 adopt other structures such as the structure of the upper cover plate 102 and the upper main plate 101 in the present embodiment, the blocking plate 6 is also required to be provided at both ends of the lower water chamber 2, or other joint assemblies, such as the aforementioned inlet/outlet assembly 4, are provided according to the flow path requirement of the heat exchange agent, so as to facilitate connection with the external pipeline.

In the preferred embodiment, the inlet-outlet assembly 4 includes a connector 401, an inlet transition duct 402, and an outlet transition duct 403, and the connector 401 is connected with the main plate and the cover plate. For example, in this embodiment, the installation manner of the connection member 401 can be as shown in fig. 5 and 6, the structure of the connection member 401 is as shown in fig. 7 and 8, the connection member 401 is provided with a first insertion groove 4011, the inlet transition pipe 402 is inserted into the first insertion groove 4011, the connection member 401 is provided with a second insertion groove 4012, and the outlet transition pipe 403 is inserted into the second insertion groove 4012.

In a preferred embodiment, the cross-sectional shapes of the first insertion groove 4011 and the second insertion groove 4012 are approximately square, one end of the inlet transition pipe 402 inserted into the first insertion groove 4011 is adapted to the shape of the first insertion groove 4011, one end of the outlet transition pipe 403 inserted into the second insertion groove 4012 is adapted to the shape of the second insertion groove 4012, and the other ends of the inlet transition pipe 402 and the outlet transition pipe 403 are both circular, so that the connection reliability of the connecting piece 401 and the inlet transition pipe 402 or the outlet transition pipe 403 is improved, the impact force of the heat exchanger can be well balanced, and the pressure resistance is improved.

In a preferred embodiment, two sides of the connecting member 401 are respectively provided with a main plate slot 4014, two sides of the upper main plate 101 are respectively inserted into the corresponding main plate slots 4014, the upper cover plate 102 and the connecting member 401 are preferably connected by welding through a connecting sheet 5, the shape of the connecting sheet 5 can be shown in fig. 2, and two sides of the connecting sheet 5 can be coated with a brazing material, so that the reliability of connection with the connecting member 401 and the upper cover plate 102 is improved, and the pressure-bearing performance is further improved. In addition, instead of providing the connecting piece 5, the connecting piece 401 and the end of the upper cover plate 102 may be welded together by a brazing material.

Go up and still can set up the baffle slot that the figure is not shown on hydroecium 1's the apron, it can communicate branch heat transfer agent passageway 103, and the interpolation dress has linked firmly the baffle that the figure is not shown in the baffle slot, through baffle and intermediate channel 2031 cooperation make and be formed with a plurality of heat transfer processes in the heat exchanger, it mainly makes the heat exchanger flow through each flat pipe 301 back outflow according to the settlement order, the circulation path of heat transfer agent is two flow types in this embodiment, in addition, still can be through the arrangement of baffle and intermediate channel 2031, make the heat transfer process be other modes, for example can refer to current four flow types, six flow types etc..

As a preferred embodiment, at least one side of the flat tube 301 is provided with a heat dissipating fin not shown in the drawings, and the heat dissipating fin is preferably in a wave shape extending along the length direction of the flat tube 301 to achieve a better heat dissipating effect.

As a preferred embodiment, the heat exchanger still includes two sideboard 7, and two sideboard 7 are all connected between the hydroecium at both ends, and each flat pipe 301 all is located between two sideboard 7, and so two sideboard 7 can play the guard action to flat pipe 301, do benefit to and guarantee the reliable operation of heat exchanger.

The heat exchanger of the embodiment has better bearing performance, can prolong the service life of the heat exchanger, is applied to the vehicle air conditioner, is beneficial to improving the reliability of the vehicle air conditioner, and is beneficial to improving the performance of the whole vehicle.

Example two

The present embodiment relates to a heat exchanger, the structure of which can be seen in fig. 10 to 15, and the heat exchanger has substantially the same structure as the heat exchanger of the first embodiment, and the difference between the two is that the structure of the upper water chamber 1 is different.

In this embodiment, as shown in fig. 12 to fig. 15, the connecting member 401 is provided with an inserting groove 4013, and the main board and the cover board are inserted into the inserting groove 4013 together, which is beneficial to improving the connection reliability of the connecting member 401, the upper cover board 102 and the upper main board 101.

In addition, in this embodiment, the cross-sectional shapes of the first plug socket 4011 and the second plug socket 4012 are circular, and it is understood that the cross-sectional shapes of the first plug socket 4011 and the second plug socket 4012 may refer to the structure in the first embodiment, or may be configured in other shapes to fit the corresponding inlet transition pipe 402 or outlet transition pipe 403.

EXAMPLE III

The present embodiment relates to a vehicle air conditioner in which the heat exchanger according to the first or second embodiment is used.

Further, specifically, when the vehicle air conditioner is an air conditioning product using an existing conventional refrigerant (e.g., R-134A), the heat exchanger according to the first or second embodiment may be used for both the evaporator and the condenser in the vehicle air conditioner of the present embodiment, and CO is used for the vehicle air conditioner ₂ When the refrigerant is an air conditioning product, the evaporator, the condenser and the air cooler in the vehicle air conditioner can all adopt the heat exchanger in the first embodiment or the second embodiment.

The vehicle air conditioner of the embodiment and the heat exchanger of the first embodiment or the second embodiment have the same beneficial effects compared with the prior art, and are not described again.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the present invention.

Claims (10)

1. A heat exchanger, characterized by:

the heat exchanger comprises an upper water chamber (1) and a lower water chamber (2) which are arranged at intervals, and a flat pipe unit (3) connected between the upper water chamber (1) and the lower water chamber (2);

the upper water chamber (1) and the lower water chamber (2) both comprise a main board and a cover board which are buckled to form a heat exchange agent channel, the flat pipe unit (3) comprises a plurality of flat pipes (301), the flat pipes (301) are sequentially arranged at intervals along the thickness direction, and two ends of each flat pipe (301) are connected with the main boards of the upper water chamber (1) and the lower water chamber (2);

the flat tube heat exchanger is characterized in that a plurality of baffle plates (1013) are connected to the main plate, the baffle plates (1013) are arranged on one side, back to the main plate, of the cover plate and connected with the cover plate, and the baffle plates (1013) are sequentially arranged at intervals along the arrangement direction of the flat tubes (301).

2. The heat exchanger of claim 1, wherein:

an upper communication hole (1011) corresponding to each flat tube (301) is formed in a main plate of the upper water chamber (1), and the heat exchange agent channel in the upper water chamber (1) is communicated with each upper communication hole (1011); lower communication holes (2011) which are arranged corresponding to the flat pipes (301) are formed in a main plate of the lower water chamber (2), and a heat exchange agent channel in the lower water chamber (2) is respectively communicated with the lower communication holes (2011);

a flanging (1012) bending towards the outside of the upper water chamber (1) is arranged at the edge of the upper communicating hole (1011), and/or a flanging (1012) bending towards the outside of the lower water chamber (2) is arranged at the edge of the lower communicating hole (2011);

the two ends of the flat pipe (301) are respectively inserted into the corresponding upper communicating hole (1011) or the lower communicating hole (2011), the corresponding flat pipe (301) and the flanging (1012) are welded into a whole, and a communicating channel (3011) for communicating the two heat exchanger channels is arranged in each flat pipe (301).

3. The heat exchanger of claim 2, wherein:

each flat pipe (301) with all be equipped with limit structure between the mainboard, limit structure is used for restricting flat pipe (301) in last intercommunicating pore (1011) or the cartridge degree of depth in lower intercommunicating pore (2011).

4. The heat exchanger of claim 1, wherein:

the end parts of the upper water chamber (1) and the lower water chamber (2) are respectively provided with an inlet and outlet assembly (4) or a blocking plate (6);

the inlet and outlet assembly (4) comprises a connecting piece (401), an inlet transition pipe (402) and an outlet transition pipe (403);

the connecting piece (401) is connected with the main board and the cover plate;

a first inserting groove (4011) is formed in the connecting piece (401), and the inlet transition pipe (402) is inserted into the first inserting groove (4011); and/or a second inserting groove (4012) is formed in the connecting piece (401), and the outlet transition pipe (403) is inserted into the second inserting groove (4012).

5. The heat exchanger of claim 4, wherein:

an insertion groove (4013) is formed in the connecting piece (401), and the main board and the cover plate are inserted into the insertion groove (4013); or the like, or a combination thereof,

the both sides of connecting piece (401) are equipped with mainboard slot (4014) respectively, the both sides of mainboard cartridge respectively in corresponding in mainboard slot (4014), the apron with connecting piece (401) link to each other.

6. The heat exchanger according to any one of claims 1 to 5, wherein:

the flat pipe units (3) are at least two layers arranged side by side;

the heat exchanger channels in the upper water chamber (1) comprise heat exchanger distributing channels (103) which are respectively arranged corresponding to the flat tube units (3) of each layer;

lower water chamber (2) include runner board (203), runner board (203) clamp is arranged in lower water chamber (2) the mainboard with between the apron, be equipped with intermediate channel (2031) on runner board (203), intermediate channel (2031) are used for the intercommunication adjacent intercommunication passageway (3011) of flat tub of unit (3).

7. The heat exchanger of claim 6, wherein:

the heat transfer agent distributing channel (103) comprises a plurality of branch channels (1031) extending along the arrangement direction of the flat tubes (301), the branch channels (1031) are arranged in a spaced mode in the arrangement direction orthogonal to the flat tubes (301), and the cross section of each branch channel (1031) is U-shaped.

8. The heat exchanger of claim 6, wherein:

and partition plate inserting grooves communicated with the heat transfer agent distributing channels (103) are constructed in the cover plate of the upper water chamber (1), partition plates are fixedly connected in the partition plate inserting grooves in an inserting mode, and the partition plates are matched with the middle channel (2031) to enable a plurality of heat transfer processes to be formed in the heat exchanger.

9. The heat exchanger according to any one of claims 1 to 5, wherein:

at least one side of the flat pipe (301) is provided with a radiating fin which is in a wave shape extending along the length direction of the flat pipe (301); and/or the presence of a gas in the gas,

the heat exchanger further comprises two side plates (7), the two side plates (7) are connected between the water chambers at the two ends, and the flat pipes (301) are located between the two side plates (7).

10. A vehicle air conditioner, characterized in that: the heat exchanger according to any one of claims 1 to 9 is employed in the vehicle air conditioner.

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