CN218296826U - Heat exchanger core, air conditioner heat exchanger and vehicle - Google Patents

Abstract

The utility model provides a heat exchanger core, air conditioner heat exchanger and vehicle, the utility model discloses a heat exchanger core is including range upon range of arranging, and a plurality of intercommunication units that communicate in proper order, and each intercommunication unit includes the pipe lateral part and the return circuit portion of mutual disposition to and communicate the flat tube portion between pipe lateral part and return circuit portion. And, the pipe lateral part forms by the lamination lock of relative arrangement with the return circuit portion, is injectd two cavitys in the pipe lateral part, and the return circuit portion is injectd the passageway, and flat pipe portion includes first flat pipe and the flat pipe of second, and first flat pipe communicates between one of them cavity and passageway, and the flat pipe of second communicates between another cavity and passageway, and the refrigerant can flow through behind first flat pipe and the passageway in proper order by one of them cavity, flows out after flowing through another cavity via the flat pipe of second. The utility model discloses a heat exchanger core can reduce flat tub of interval to through the compact intercommunication unit of arranging, also can make the heat transfer volume increase under the unit volume, and can improve heat exchange efficiency, improve the heat transfer effect.

Description

Heat exchanger core, air conditioner heat exchanger and vehicle

Technical Field

The utility model relates to a refrigeration plant technical field, in particular to heat exchanger core. The utility model discloses still relate to the air conditioner heat exchanger that has this heat exchanger core to and have this air conditioner heat exchanger's vehicle.

Background

The heat exchanger is an important element in an automobile air conditioning system, in actual operation, a refrigerant enters the heat exchanger and continuously absorbs heat in the flowing process, and fins on the surface of the heat exchanger continuously exchange heat with contacted water and air, so that the aim of refrigeration or cooling is fulfilled. In the prior art, a heat exchanger of an automobile air conditioning system mainly comprises a parallel flow heat exchanger, and the parallel flow heat exchanger consists of a water chamber, a porous inclined tube and fins once, so that the heat exchanger is a compact heat exchanger.

However, the water chamber structure of the existing parallel flow heat exchanger still has some defects, for example, the flat tube holes on the main plate of the heat exchanger are processed by stamping, and the processing mode is difficult to process the flat tube holes with a short distance, so that the distance between the adjacent flat tubes is increased. When the work of the heat exchanger needs stronger energy density, the heat exchange effect can be ensured by often arranging the flat tubes and the fins more densely, and if the flat tube spacing is too large, the heat exchange factor is reduced, the heat exchange area is reduced, the heat exchange amount is reduced, and the heat exchange effect cannot be ensured.

In the prior art, in order to solve the above problems, a method of bending the edges of two flat tubes to reduce the distance between the flat tubes is generally adopted, and the method can shorten the length of a fin between the flat tubes to adapt to bending of two ends of the flat tubes. However, the heat exchange area is also reduced due to the shortened length of the fins, which results in a reduction in heat exchange efficiency.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a heat exchanger core to improve the too big poor problem of heat transfer effect who arouses of parallel flow heat exchanger flat tube interval, thereby improve parallel flow heat exchanger's heat exchange efficiency, improve heat transfer effect.

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

a heat exchanger core comprises a plurality of communication units which are arranged in a stacked mode and are communicated in sequence, wherein each communication unit comprises a pipe side portion and a circuit portion which are arranged oppositely, and a flat pipe portion communicated between the pipe side portion and the circuit portion;

the utility model discloses a refrigerant circulation, including the pipe lateral part, the pipe lateral part with the loop part is formed by the lamination lock of mutual disposition, be injectd two cavities in the pipe lateral part, the loop part is injectd the passageway, flat pipe portion includes first flat pipe and the flat pipe of second, first flat pipe intercommunication in one of which the cavity with between the passageway, the flat pipe of second communicate in another the cavity with between the passageway, the refrigerant can be flowed through in proper order by one of it the cavity first flat pipe with behind the passageway, via the flat pipe of second flows to another flow out behind the cavity.

Furthermore, a partition plate penetrating through each communication unit is arranged in the heat exchanger core body, the partition plate is arranged between the first flat pipe and the second flat pipe, and a gap for liquid to pass through is formed between the partition plate and the pipe side part.

Furthermore, at least one of the pipe side parts of two adjacent pipe side parts is provided with a convex ring, and the two adjacent pipe side parts are connected through the convex ring in an inserted manner; and/or the presence of a gas in the atmosphere,

at least one of the loop parts of the two adjacent loop parts is provided with an outward convex ring, and the two adjacent loop parts are connected through the convex ring in an inserted manner.

Furthermore, a fin unit is clamped between two adjacent communication units.

Further, the fin unit comprises a plurality of sub-fins which are sequentially arranged, each sub-fin is composed of a convex part and a concave part which are alternately arranged, and the convex parts of two adjacent sub-fins are overlapped;

the convex part and the concave part are respectively connected with two adjacent flat tube parts and form a flow passage for liquid flow in a surrounding way.

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

the heat exchanger core, through setting up the flat pipe of traditional punching press of the intercommunication unit replacement that stacks up and arrange, through the lock of the relative lamination of tub lateral part and return circuit portion, form the support to flat pipe portion, simultaneously, this heat exchanger core also can make the refrigerant flow through first flat pipe and passageway by one of them cavity, flow out by another cavity again, so set up, can reduce the interval of adjacent flat pipe to reach from this and improve heat exchange efficiency, improve the purpose of heat transfer effect.

Furthermore, the utility model discloses a run through in the intercommunication unit and set up the baffle, separate first flat pipe and the flat pipe of second, can block that water is direct to pass through from the baffle to guide rivers from the water inlet flow through between flat pipe and the fin, clearance between rethread baffle and the pipe lateral part flows in the fin of another flat pipe, thereby improves heat exchange efficiency. The convex rings are arranged on at least one of the adjacent pipe side parts and/or the loop parts, so that the communicating units which are arranged in a vertically stacked manner can be conveniently inserted and connected, a positioning effect is achieved, and smoothness of liquid circulation channels of all layers is further guaranteed.

Additionally, the utility model discloses a set up the fin unit, this fin unit contact improves compact structure, improvement heat exchange efficiency through the heat transfer performance that the fin unit made this heat exchanger core between two adjacent flat pipes. The plurality of sub-fins are formed by the convex parts and the concave parts which are alternately arranged and used for increasing the contact area of water flow entering the fins, so that when the water flow passes through the flow channel, the heat exchange area of the heat exchanger core body can be fully utilized, and the whole heat exchange efficiency and the whole heat exchange capacity of the heat exchanger core body are improved.

The utility model discloses also provide an air conditioner heat exchanger simultaneously, air conditioner heat exchanger is including having the casing that holds the chamber, and locates hold in the chamber as above the heat exchanger core, be equipped with on the casing with hold the water inlet and the delivery port of chamber intercommunication, and supply the circulation mouth of refrigerant circulation.

Furthermore, a connecting plate is arranged on the side part of the tube positioned at the topmost end, and a liquid inlet tube and a liquid outlet tube which are respectively communicated with the two cavities are arranged on the connecting plate.

Furthermore, inlay in the circulation mouth and be equipped with the connecting block, be equipped with two mounting holes on the connecting block, the feed liquor pipe with the drain pipe is inserted respectively and is located two in the mounting hole.

Furthermore, an annular sealing ring is clamped between the connecting block and the inner wall of the shell.

Air conditioner heat exchanger, set up as above in the casing heat exchanger core to through the water inlet and the delivery port with the casing intercommunication, the circulation of the rivers of being convenient for carries out the heat transfer. The air conditioning heat exchanger can simultaneously lead the refrigerant into the heat exchanger core through the arrangement of the circulating port so as to cool the water flow.

In addition, through set up the connecting plate on the pipe lateral part on top, feed liquor pipe and the drain pipe that is equipped with on this connecting plate, feed liquor pipe and drain pipe communicate with two cavitys respectively, are convenient for form the circulation passageway of refrigerant. And, through setting up the connecting block to make feed liquor pipe and drain pipe on the connecting plate can insert respectively in the mounting hole of this connecting block, not only with circulation mouth and two mounting holes intercommunication, the refrigerant circulation of being convenient for. So that the connecting plate can be positioned and connected in the air-conditioning heat exchanger. And the sealing ring is arranged between the inner wall of the shell and the connecting block, so that the water in the air-conditioning heat exchanger can be prevented from leaking, and the sealing performance of the air-conditioning heat exchanger is improved.

The utility model also provides a vehicle is equipped with as above on this vehicle air conditioner heat exchanger.

The vehicle through adopt as above air conditioner heat exchanger, can make the air conditioner heat exchanger of vehicle have better result of use, and can improve the travelling comfort that the vehicle used.

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 core according to an embodiment of the present invention when the heat exchanger core does not include an upper cover plate and a lower cover plate;

fig. 2 is a cross-sectional view of a tube side portion of a heat exchanger core according to an embodiment of the present invention, cut in a width direction;

fig. 3 is a cross-sectional view of a loop portion of a heat exchanger core according to an embodiment of the present invention, the cross-sectional view being cut in a width direction;

fig. 4 is a schematic structural diagram of a communication unit according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a tube side portion according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a returning portion according to an embodiment of the present invention;

fig. 7 is a cross-sectional view of the heat exchanger core according to an embodiment of the present invention, the center of the heat exchanger core being cut along the length direction;

FIG. 8 isbase:Sub>A sectional view taken along line A-A of FIG. 4;

FIG. 9 is a cross-sectional view taken along line B-B of FIG. 4;

fig. 10 is a schematic view of an installation structure of the communication unit and the fin unit according to the embodiment of the present invention;

fig. 11 is a schematic structural view of a sub-fin according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of a housing according to an embodiment of the present invention;

fig. 13 is a schematic top view of an air conditioner heat exchanger according to an embodiment of the present invention;

FIG. 14 is a cross-sectional view taken along line C-C of FIG. 13;

fig. 15 is a schematic structural view of a connecting plate according to an embodiment of the present invention;

FIG. 16 is a cross-sectional view taken along line D-D of FIG. 13;

fig. 17 is a schematic view of an installation structure of a heat exchanger core, a connecting plate, and a connecting block according to an embodiment of the present invention;

fig. 18 is a schematic structural view of an air conditioner heat exchanger according to an embodiment of the present invention.

Description of reference numerals:

1. a heat exchanger core; 2. a housing; 3. a connecting plate; 4. connecting blocks; 5. an annular seal ring; 6. an O-shaped ring;

101. a tube side portion; 102. a circuit section; 103. a flat tube portion; 104. a partition plate; 105. a gap; 106. an upper cover plate; 107. a lower cover plate; 108. a convex ring; 109. a fin unit;

201. a water inlet; 202. a water outlet; 203. a flow port;

301. a liquid inlet pipe; 302. a liquid outlet pipe;

401. mounting holes;

1011. a first lamination; 1012. a second laminate; 1013. a first cavity; 1014. a second cavity; 1015. a first partition; 1016. a first flow channel opening; 1017. a second flow port;

1021. a third cavity; 1022. a fourth cavity; 1023. a channel; 1024. a third flow passage opening; 1025. a fourth runner port; 1026. a second partition; 1027. a third lamination; 1028. a fourth lamination;

1031. a first flat tube; 1032. a second flat tube;

1091. dividing fins; 10911. a boss portion; 10912. a recessed portion; 10913. and a flow passage.

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, which are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, 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.

Furthermore, in the description of the present invention, the terms "mounted," "connected," and "connected" are to be construed broadly unless otherwise specifically limited. For example, the connection can 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. To those of ordinary skill in the art, the specific meaning of the above terms in the present invention can be understood in combination with the specific situation.

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 core 1, and in an overall structure, the heat exchanger core 1 includes a plurality of communication units which are arranged in a stacked manner and are sequentially communicated with each other, each of the communication units includes a tube side portion 101 and a circuit portion 102 which are arranged oppositely, and a flat tube portion 103 which is communicated between the tube side portion 101 and the circuit portion 102.

Wherein, tub lateral part 101 and return circuit portion 102 are buckled by the lamination of arranging relatively and are formed, be injectd two cavities in the tub lateral part 101, return circuit portion 102 is injectd passageway 1023, flat tub of portion 103 includes first flat pipe 1031 and second flat pipe 1032, first flat pipe 1031 communicates between its cavity and passageway 1023, flat pipe 1032 of second communicates between another cavity and passageway 1023, the refrigerant can flow through first flat pipe 1031 and the passageway 1023 back in proper order by its cavity, flow out after flowing through another cavity via flat pipe 1032 of second.

Specifically, the heat exchanger core 1 of the present embodiment has an upper cover plate 106 and a lower cover plate 107 which are crimped to the upper and lower ends of the plurality of communication units. Protection of a plurality of stacked communication units is formed.

As a preferred embodiment, as shown in fig. 3 to 6, one of the communication units of the present embodiment is composed of a flat tube part 103, and a tube side part 101 and a circuit part 102 located on both sides of the flat tube part 103. Structurally, as shown in fig. 2 to 4, the tube side 101 includes a first lamination 1011 and a second lamination 1012. Both the first laminations 1011 and the second laminations 1012 of this embodiment are stamped and formed.

As shown in fig. 2 and 5, the first lamination 1011 in this embodiment has two first protrusions formed by press molding, and the second lamination 1012 has a second protrusion protruding in correspondence with the two first protrusions. The two first projections and the two second projections define the two cavities spaced apart as described above. For convenience of explanation, the two cavities are defined as a first cavity 1013 and a second cavity 1014.

Except for the location of the first cavity 1013 and the second cavity 1014, the first and second laminations 1011, 1012 abut each other with a first partition 1015 between the first cavity 1013 and the second cavity 1014, the first partition 1015 blocking the first cavity 1013 from the second cavity 1014. The first and second laminations 1011, 1012 of this embodiment are secured together by welding. Of course, the fixing can also be realized by adopting the methods such as bolt connection, riveting, inserting connection and the like according to the requirements.

As shown in fig. 5, a first flow port 1016 penetrating the first cavity 1013 is provided, a second flow port 1017 penetrating the second cavity 1014 is provided, and the first flow port 1016 and the second flow port 1017 are each configured as a long hole for passing the refrigerant.

Further, as shown in fig. 3 and 6, the loop part 102 of the present embodiment is formed by fastening a third lamination 1027 and a fourth lamination 1028. Wherein, the third lamination 1027 of this embodiment also has two stamped third protrusions, with the same structure as the first and second protrusions described above. The fourth lamination 1028 has a fourth projection projecting correspondingly to the third projection. The two third protruding portions and the two fourth protruding portions form a third cavity 1021 and a fourth cavity 1022, and the third cavity 1021 and the fourth cavity 1022 jointly form the channel 1023.

As shown in fig. 6, a second partition 1026 is provided between the third cavity 1021 and the fourth cavity 1022. In the embodiment, the second partition 1026 is a partial partition formed between the third cavity 1021 and the fourth cavity 1022, so that the third cavity 1021 and the fourth cavity 1022 are communicated with each other. A third flow port opening 1024 is formed through the third cavity 1021, a fourth flow port opening 1025 is formed through the fourth cavity 1022, and the third flow port opening 1024 and the fourth flow port opening 1025 can communicate with each other through the passage 1023.

As a specific embodiment, as shown in fig. 4, a first flat tube 1031 is inserted between the first cavity 1013 and the third cavity 1021, and a second flat tube 1032 is inserted between the second cavity 1014 and the fourth cavity 1022. In this embodiment, the first flow passage opening 1016 is communicated with the inlet end of the refrigerant, and the refrigerant flows into the third cavity 1021 through the first flat tube 1031, flows into the fourth cavity 1022 through the passage 1023, and flows into the fourth cavity 1022 through the second flat tube 1032, so that the refrigerant in the communication unit of one layer flows through. See in particular the direction of refrigerant flow indicated by the directional arrows in fig. 17.

It should be noted that, since the first flow port 1016 penetrates the tube side portion 101, and the first flow port 1016 of each layer is located at the same position, the refrigerant flows into the first flow port 1016 from the inlet end, flows into the first flow port 1016 at the lowermost layer of the heat exchanger core 1, and then flows through the first flat tube 1031 and the second flat tube 1032 by the above-mentioned circulation, and then flows into the communication unit of the upper layer adjacent thereto through the fourth flow port 1025.

In order to allow the refrigerant to flow into circuit portion 102 along first flat tube 1031 and then flow through second flat tube 1032, as a preferred embodiment, a partition plate 104 provided through each communication unit is provided in heat exchanger core 1 of the present embodiment, partition plate 104 is provided between first flat tube 1031 and second flat tube 1032, and a gap 105 through which the liquid passes is formed between partition plate 104 and tube side portion 101.

As shown in fig. 1 and 7, the partition plate 104 of the present embodiment is configured in a flat plate shape and is fixed by being inserted into the lower cover plate 107. And a space for the partition board 104 to penetrate is left between the first flat pipe 1031 and the second flat pipe 1032 of each layer, and a through groove for avoiding the partition board 104 is formed on the upper cover plate 106.

As also shown in fig. 4, first flat tube 1031 and second flat tube 1032 of the present embodiment are each configured in a rectangular flat plate shape, and in order to facilitate the circulation of the refrigerant, liquid flow holes that are arranged to penetrate in the longitudinal direction thereof are provided in each of first flat tube 1031 and second flat tube 1032, and the plurality of liquid flow holes communicate each cavity of tube side portion 101 and circuit portion 102. Moreover, the thicknesses of the first flat tubes 1031 and the second flat tubes 1032 are matched with those of the cavities, and gaps are formed between the vertically adjacent first flat tubes 1031 and between the vertically adjacent second flat tubes 1032.

In addition, as shown in fig. 1 and 7, this embodiment facilitates fluid communication between the gaps between first flat tube 1031 and second flat tube 1032 in each layer by leaving a gap 105 between baffle 104 and tube side 101. The liquid in this example is specifically water. The water passing through the communication units of the respective layers exchanges heat with the refrigerant passing through the first flat tube 1031 and the second flat tube 1032. Reference is made to fig. 18 for indicating the direction of flow of water within the heat exchanger core as indicated by the arrows. Of course, the liquid in this embodiment may also be air or liquid made of other materials, and the specific medium may be set as required.

In order to facilitate the connection of the communication units on two adjacent sides, as a preferred embodiment, in this embodiment, at least one pipe side portion 101 of two adjacent pipe side portions 101 is provided with a convex ring 108, and the two adjacent pipe side portions 101 are connected by the convex ring 108 in an inserted manner; at least one circuit part 102 of two adjacent circuit parts 102 is provided with a convex ring 108, and the two adjacent circuit parts 102 are connected through the convex ring 108 in an inserting way.

The pipe side part 101 and the loop part 102 of each layer of the present embodiment are provided with the convex rings 108, and in other embodiments, the convex rings 108 may be separately provided on the pipe side part 101 or the loop part 102. The convex ring 108 can realize the positioning of the communication units of the upper layer and the lower layer, and ensure the accurate position of each runner opening. The upper layer and the lower layer of the communication units can be conveniently inserted and fixed without adopting other parts, the assembly mode is convenient and fast, and the cost can be reduced.

In a specific structure, as shown in fig. 2, 3, 8, and 9, a protruding ring 108 is disposed on each of the second lamination 1012 and the fourth lamination, and the protruding ring 108 is integrally stamped with the second lamination 1012 or the fourth lamination. The collars 108 on the second laminations 1012 can be inserted into the first laminations 1011 adjacent thereto. The collars 108 on the fourth lamination can be inserted into the third lamination adjacent thereto to form a fixed positioning of the tube side 101 and the loop side 102 of each layer.

In addition, in order to further improve the heat exchange effect, a fin unit 109 is sandwiched between two adjacent communication units in the embodiment. In a specific structure, as shown in fig. 14, the fin unit 109 is disposed between the first flat tubes 1031 adjacent to each other vertically or the second flat tubes 1032 adjacent to each other vertically, that is, disposed in the above-mentioned gap for water circulation, and the fin unit 109 can slow down the water flow speed, thereby improving the heat exchange effect of the heat exchanger core.

As a preferable embodiment, the fin unit 109 of the present embodiment includes a plurality of sub-fins 1091 arranged in sequence, the sub-fins 1091 are composed of convex portions 10911 and concave portions 10912 arranged alternately, and the convex portions 10911 of two adjacent sub-fins 1091 are overlapped. The convex portion 10911 and the concave portion 10912 are respectively connected to two adjacent flat tube portions 103, and are formed to have a flow path 10913 for liquid flow.

As a specific embodiment, as shown in fig. 10 and 11, the fin unit 109 of the present embodiment is divided into two by the partition 104, and the sub-fin 1091 has a long strip shape disposed along the length direction of the fin unit 109. Specifically, as shown in fig. 11, the sub-fins 1091 of the present embodiment have convex portions 10911 and concave portions 10912, and are alternately formed in a pattern like rectangular waves, and each sub-fin 1091 has two opposing rectangular waves, in which the convex portions 10911 of one rectangular wave correspond to the concave portions 10912 of the other rectangular wave.

As also shown in fig. 11, the fin unit 109 of the present embodiment is formed of a sheet metal, wherein the convex portion 10911 is configured as a bent plate, the flow path 10913 is formed on the convex portion 10911 and the concave portion 10912, and a plurality of flow paths 10913 are formed along the length direction of the fin unit 109. And a passage 1023 for the flow of water is also formed between two adjacent minute fins 1091.

So set up to make the rivers of circulation in minute fin 1091 can be because of the guide of bellying 10911 and depressed part 10912 and distribute evenly, moreover, the rivers of circulation between first flat pipe 1031 and second flat pipe 1032 pass through the suitable blocking of bellying 10911 and depressed part 10912 for the circulation speed of rivers becomes slow, thereby can further improve heat transfer effect.

In addition, it should be noted that, in a specific implementation, the first flow port 1016 of one layer of the heat exchanger core of the present embodiment may be blocked by a blocking plate or other structure, and at this time, the refrigerant passing through the layer may flow to the circuit portion 102 through the first flat tube 1031, and then flow to the communication unit at the bottom layer through the third flow port 1024, so that the communication unit at the bottom layer is filled with the refrigerant, and then the refrigerant may flow out from the liquid outlet pipe 302 after being filled layer by layer, thereby obtaining different usage effects.

In concrete practice, the first flow port 1016 of one of the layers may be blocked by a blocking plate or the like, and the third flow port 1024 of any one or several layers below the layer may be blocked, or the second flow port 1017 and the fourth flow port 1025 of any one or more layers may be blocked, so that the refrigerant flow circuit can be adjusted adaptively, and the cooling time can be shortened.

The heat exchanger core 1 of this embodiment, through setting up the tube side portion 101 and the return circuit portion 102 that stack up arranged, and flat tube portion 103, can make the refrigerant flow through in first flat pipe 1031 and the flat pipe 1032 of second with injecing, so can reduce the interval of adjacent flat pipe, make this heat exchanger core 1's flat pipe arrange compactly densely, the heat transfer volume under the unit volume increases, and reach the purpose that improves heat exchange efficiency, improve heat transfer effect.

Example two

The present embodiment relates to an air conditioning heat exchanger which includes a case 2 having a housing chamber, and a heat exchanger core 1 of the first embodiment provided in the housing chamber, and a water inlet 201 and a water outlet 202 communicating with the housing chamber, and a circulation port 203 through which a refrigerant circulates are provided on the case 2.

As shown in fig. 12, the casing 2 of the present embodiment is formed with a water inlet 201 and a water outlet 202 at one end of the circuit portion 102, the water inlet 201 is located at a side close to the fourth channel opening 1025, and the water outlet 202 is located at a side close to the third channel opening 1024. As shown in fig. 13 and 14, the casing 2 and both sides of the heat exchanger have a gap in the width direction of the air-conditioning heat exchanger, and water flows through the gap and the gap 105 formed between the partition plate 104 and the pipe side portion 101 after entering from the water inlet 201.

The water flow also flows from the bottom-most fin unit 109 to the top-most layer, and then flows out through the water outlet 202, so as to generate circulation of the water flow. As shown in fig. 12, a flow port 203 is provided at one end of the present embodiment near the tube side 101.

In this embodiment, further, a connection plate 3 is disposed on the topmost tube side 101, and a liquid inlet tube 301 and a liquid outlet tube 302 respectively communicated with the two cavities are disposed on the connection plate 3. As a specific embodiment, as shown in fig. 13 and 15, the connecting plate 3 of this embodiment is configured to be a flat plate, two circular truncated cones protruding upward are provided on the connecting plate 3, and a circular hole penetrating through the two circular truncated cones is provided at the center of the two circular truncated cones to form a liquid inlet pipe 301 and a liquid outlet pipe 302.

In order to allow refrigerant to enter from liquid inlet pipe 301, it flows out from liquid outlet pipe 302. As shown in fig. 16, inlet and outlet tubes 301 and 302 communicate with first and second cavities 1013 and 1014 of tube side 101. The connecting plate 3 of this embodiment is fixedly connected to the upper cover plate 106 by bolts, and the upper cover plate 106 has two avoiding holes corresponding to the first channel opening 1016 and the second channel opening 1017, and the liquid inlet pipe 301 and the liquid outlet pipe 302 are disposed right above the two avoiding holes.

Meanwhile, in order to fix the position of the connecting plate 3 and the heat exchanger core 1 in the housing 2, the connecting block 4 is embedded in the flow port 203, two mounting holes 401 are formed in the connecting block 4, and the liquid inlet pipe 301 and the liquid outlet pipe 302 are respectively inserted into the two mounting holes 401. Specifically, as shown in fig. 17, the connecting block 4 of the present embodiment is configured as a rectangular block-shaped structure, and the outer periphery thereof is fitted to the communication port 203.

As shown in fig. 16 and 17, the connecting block 4 is provided with mounting holes 401 adapted to the liquid outlet pipe 302 and the liquid inlet pipe 301, the shape of the mounting holes 401 is configured to follow the shape of the liquid outlet pipe 302 and the liquid inlet pipe 301, as shown in fig. 16, the two mounting holes 401 in this embodiment penetrate through the connecting block 4 and are configured as stepped holes, and the hole on the side close to the outside of the housing 2 is larger, so as to facilitate connection with the refrigeration equipment.

In a preferred embodiment, an annular sealing ring 5 is sandwiched between the connecting block 4 and the inner wall of the housing 2. Meanwhile, as shown in fig. 16, the outer periphery of the connecting block 4 is also provided with a sealing ring with a circumferential seal to prevent the refrigerant from leaking. Furthermore, O-rings 6 are sleeved outside the liquid inlet pipe 301 and the liquid outlet pipe 302, and the O-rings 6 form sealing between the connecting plate 3 and the connecting block 4 to avoid refrigerant leakage.

In the air-conditioning heat exchanger of the present embodiment, the heat exchanger core 1 as described above is provided in the accommodating chamber, and the air-conditioning heat exchanger is formed by providing the water inlet 201 and the water outlet 202 and the communication port 203 in the case 2. The air conditioner heat exchanger of the embodiment improves the heat absorption effect of the refrigerant by enabling the flat pipes to be compact in structure, enables the temperature of the flowing water to be reduced, and has a good heat exchange effect.

EXAMPLE III

The embodiment relates to a vehicle, and the vehicle is provided with the air-conditioning heat exchanger in the second embodiment. The vehicle of the embodiment is provided with the air-conditioning heat exchanger, so that the heat exchange effect of the vehicle can be improved, and the driving comfort of passengers can be improved.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A heat exchanger core (1), characterized by:

the device comprises a plurality of communication units which are arranged in a stacked mode and are sequentially communicated, wherein each communication unit comprises a pipe side part (101), a loop part (102) and a flat pipe part (103), wherein the pipe side parts (101) and the loop part (102) are oppositely arranged, and the flat pipe part is communicated between the pipe side parts (101) and the loop part (102);

the utility model discloses a heat exchanger, including the pipe lateral part (101) with return circuit portion (102) are formed by the lamination lock of relative arrangement, be injectd two cavitys in the pipe lateral part (101), return circuit portion (102) are injectd passageway (1023), flat pipe portion (103) include first flat pipe (1031) and second flat pipe (1032), first flat pipe (1031) communicate in the one the cavity with between the passageway (1023), second flat pipe (1032) communicate in another the cavity with between the passageway (1023), the refrigerant can be by one the cavity flows through in proper order first flat pipe (1031) with behind the passageway (1023), via second flat pipe (1032) flow to another flow out behind the cavity.

2. A heat exchanger core (1) according to claim 1, wherein:

and a partition plate (104) penetrating through each communication unit is arranged in the heat exchanger core body (1), the partition plate (104) is arranged between the first flat pipe (1031) and the second flat pipe (1032), and a gap (105) for liquid to pass through is formed between the partition plate (104) and the pipe side part (101).

3. A heat exchanger core (1) according to claim 1, wherein:

at least one pipe side part (101) of two adjacent pipe side parts (101) is provided with a convex ring (108), and the two adjacent pipe side parts (101) are connected through the convex ring (108) in a plug-in manner; and/or the presence of a gas in the atmosphere,

at least one of the loop parts (102) of two adjacent loop parts (102) is provided with an outward convex ring (108), and the two adjacent loop parts (102) are connected through the convex ring (108) in an inserted manner.

4. A heat exchanger core (1) according to any one of claims 1 to 3, wherein:

a fin unit (109) is clamped between two adjacent communication units.

5. A heat exchanger core (1) according to claim 4, wherein:

the fin unit (109) comprises a plurality of sub-fins (1091) arranged in sequence, the sub-fins (1091) are composed of convex parts (10911) and concave parts (10912) which are alternately arranged, and the convex parts (10911) of two adjacent sub-fins (1091) are overlapped;

the convex part (10911) and the concave part (10912) are respectively connected with two adjacent flat pipe parts (103) and form a flow passage (10913) for liquid flow in a surrounding mode.

6. An air conditioning heat exchanger characterized by:

the heat exchanger core body comprises a shell (2) with a containing cavity and the heat exchanger core body (1) of any one of claims 1 to 5 arranged in the containing cavity, wherein a water inlet (201) and a water outlet (202) which are communicated with the containing cavity and a circulation port (203) for circulating the refrigerant are arranged on the shell (2).

7. An air conditioning heat exchanger according to claim 6 wherein:

be located the top be equipped with connecting plate (3) on pipe lateral part (101), be equipped with on connecting plate (3) with two feed liquor pipe (301) and drain pipe (302) that the cavity communicates respectively.

8. An air conditioning heat exchanger according to claim 7, wherein:

inlay in circulation mouth (203) and be equipped with connecting block (4), be equipped with two mounting holes (401) on connecting block (4), feed liquor pipe (301) with drain pipe (302) are inserted respectively and are located two in mounting hole (401).

9. An air conditioning heat exchanger according to claim 8, wherein:

an annular sealing ring (5) is clamped between the connecting block (4) and the inner wall of the shell (2).

10. A vehicle, characterized in that:

the vehicle is provided with the air-conditioning heat exchanger as recited in any one of claims 6 to 9.

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