CN217952676U - Heat exchanger and air conditioner - Google Patents

Abstract

The utility model relates to a indirect heating equipment technical field particularly, relates to a heat exchanger and air conditioner, the utility model provides a problem: when increasing the flow path of heat exchanger, both ends air intake department wind speed is inhomogeneous about the heat exchanger, and it is inhomogeneous to lead to upper and lower both ends heat transfer effect, influences the problem of air conditioner refrigeration and heating effect, for solving above-mentioned problem, the embodiment of the utility model provides a heat exchanger includes: the first heat exchange module is provided with a first heat exchange unit, the first heat exchange unit is provided with a first inlet, and the first inlet corresponds to at least two first outlets; the second heat exchange module is provided with a second heat exchange unit, the second heat exchange unit is provided with second inlets, and each second inlet corresponds to at least two second outlets; the first outlets of the first heat exchange modules arranged from top to bottom in the height direction are connected with the second inlets of the second heat exchange modules arranged from bottom to top in the height direction in a one-to-one correspondence mode.

Description

Heat exchanger and air conditioner

Technical Field

The utility model relates to a indirect heating equipment technical field particularly, relates to a heat exchanger and air conditioner.

Background

For the heat exchanger, generally speaking, there are many flow paths, the evaporator capacity is large, and the heating effect is good; the flow path is few, the condenser capacity is large, the refrigeration effect is good, referring to fig. 1, in the related art, in the heating process, the liquid side enters from the L2 end, and the gas side is discharged from the G3 end and the G4 end, so that the flow path is increased, but the heat exchanger has the characteristic of high height, the deviation of the upper and lower wind speeds is large, and the uniformity of heat exchange is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem: when the flow path of the heat exchanger is increased, the air speed at the air inlets at the upper end and the lower end of the heat exchanger is uneven, so that the heat exchange effect at the upper end and the lower end is uneven, and the refrigeration and heating effects of the air conditioner are influenced.

In order to solve the above problem, an embodiment of the utility model provides a heat exchanger includes: the first heat exchange module is provided with a first heat exchange unit, the first heat exchange unit is provided with a first inlet, and the first inlet corresponds to at least two first outlets; the second heat exchange module is provided with a second heat exchange unit, the second heat exchange unit is provided with second inlets, and each second inlet corresponds to at least two second outlets; the first outlets of the first heat exchange modules arranged from top to bottom in the height direction are connected with the second inlets of the second heat exchange modules arranged from bottom to top in the height direction in a one-to-one correspondence mode.

Compared with the prior art, the technical scheme has the following technical effects: through establishing ties first heat exchange unit and second heat exchange unit, the effect of one advance four plays has been realized, the flow path of evaporimeter has been increased, the effect of heating of heat exchanger has been promoted, through connect corresponding first export and second import with crisscross form in the direction of height, let the refrigerant of first heat exchange module top carry the lower part of second heat exchange module again after the heat transfer, thereby realize the homogeneity of heat exchanger heat transfer, the heat transfer ability of heat exchanger has also been improved when having adapted to wind field inhomogeneity.

In an embodiment of the present invention, there are a plurality of first heat exchange units, and the plurality of first heat exchange units are connected in parallel and arranged along the height direction of the first heat exchange module; the plurality of second heat exchange units are connected in parallel and arranged along the height direction of the second heat exchange modules; wherein, adopt transition pipe connection between first heat transfer unit and the second heat transfer unit.

Compared with the prior art, the technical scheme has the following technical effects: the parallelly connected setting of a plurality of first heat transfer units, the reasonable space that has utilized the heat exchanger inside has increased the income liquid mouth of heat exchanger, with the cooperation of a plurality of second heat transfer units, has increased the flow path when the heat exchanger is as the evaporimeter, has promoted the air-out area, along the mode of arranging of direction of height range, lets the wind speed in second exit can adjust according to the position of arranging, lets the heat exchanger can adapt to different operational environment.

The utility model discloses an in one embodiment, the transition pipe has a plurality ofly, and every transition pipe has relative first end and second end, every first end and a first exit linkage, every second end and a second access connection, and a plurality of first ends set up side by side from last to down along first heat exchange module's direction of height, and the second end that a plurality of first ends correspond sets up side by side from supreme down along second heat exchange module's direction of height.

Compared with the prior art, the technical scheme has the following technical effects: the first end and the second end are connected and arranged, so that the average wind speed of each flow path can be kept consistent after the space in the heat exchanger is fully utilized, and the stability of the heating effect of the heat exchanger is improved.

In an embodiment of the present invention, the first heat exchange unit includes: the first inlet is arranged in the first row of tubes; the second calandria, the one end and the first calandria of second calandria are connected, and the other end is connected with first end, and the second calandria slant sets up, and second heat exchange unit includes: the third calandria is arranged on one side, close to the first heat exchange module, of the second heat exchange module and is connected with the second end; and the fourth row of tubes are connected with the third row of tubes, the second outlet is formed in the fourth row of tubes, and the fourth row of tubes are obliquely arranged.

Compared with the prior art, the technical scheme has the following technical effects: the second calandria sets up with the slant of fourth calandria, has reduced the required U pipe quantity of each flow path to this main pipe that has reduced the flow path is long, thereby reduces the pressure drop, promotes the heat transfer ability of heat exchanger.

The utility model discloses an in one embodiment, first calandria has many to locate first heat exchange module and keep away from one side of second heat exchange module, many first calandrias are arranged from last to down in proper order along first heat exchange module's direction of height.

Compared with the prior art, the technical scheme has the following technical effects: according to the height of the heat exchanger, the specific position of the first outlet corresponding to each first inlet in the height direction of the first heat exchange module is adjusted, so that the arrangement density of the second outlets is changed, and the air outlet density of the wind field is changed.

In an embodiment of the present invention, in the heating mode, the first calandria, the second calandria, the third calandria and the fourth calandria are connected in sequence to form the first heat exchange flow path, in the cooling mode, the fourth calandria, the third calandria, the second calandria and the first calandria are connected in sequence to form the second heat exchange flow path, and the refrigerant flow direction of the first heat exchange flow path is opposite to that of the second heat exchange flow path.

Compared with the prior art, the technical scheme has the following technical effects: when the first heat exchange flow path enables the heat exchanger to be used as an evaporator, the number of flow paths of the evaporator is increased to the maximum extent, and the evaporation capacity is improved; therefore, the heating capacity of the heat exchanger is improved, when the heat exchanger is used as a condenser by the second heat exchange flow path, the flow path number of the condenser is reduced to the maximum extent, the condensing capacity is improved, the refrigerating capacity of the heat exchanger is improved, and the capacity and the comprehensive energy efficiency of an air conditioning system using the heat exchanger are improved after the heating capacity and the refrigerating capacity are improved simultaneously.

The utility model discloses an in one embodiment, a plurality of first heat exchange module set up side by side along the air inlet direction, and every first heat exchange module corresponds a second heat exchange module.

Compared with the prior art, the technical scheme has the following technical effects: through setting up a plurality of first heat exchange module and second heat exchange module side by side, promote the heat transfer ability of heat exchanger, let the operational environment that the heat exchanger can deal with the difference, promote the practicality of heat exchanger.

In an embodiment of the present invention, the heat exchanger includes: the second outlet of the four-way valve is connected with the four-way valve; the infusion tube is connected with the first inlet; the gas-liquid separator is connected with the four-way valve; and the exhaust pipe is connected with the four-way valve.

Compared with the prior art, the technical scheme has the following technical effects: the working mode of the heat exchanger is controlled through the four-way valve, so that the working mode of the heat exchanger is more convenient to switch.

The utility model discloses an in the embodiment, still provide an air conditioner, be equipped with the heat exchanger in the air conditioner, this heat exchanger has the whole technical characteristics of above-mentioned heat exchanger, and here no longer gives unnecessary details one by one.

Drawings

FIG. 1 is a diagram of a related art heat exchanger internal flow path;

FIG. 2 is a flow chart of the inside of the heat exchanger of the present invention;

FIG. 3 is a schematic view of the connection between the first heat exchange unit and the second heat exchange unit of the present invention;

FIG. 4 is a schematic circuit diagram of the heat exchanger of the present invention as an evaporator;

FIG. 5 is a schematic circuit diagram of the heat exchanger of the present invention as a condenser;

fig. 6 is a system diagram of the present invention.

Description of the reference numerals:

100-a first heat exchange module; 110 — a first inlet; 120-a first outlet; 130-a first heat exchange unit; 140-a first bank of tubes; 150-a second bank of tubes; 160-third bank of tubes; 200-a second heat exchange module; 210-a second inlet; 220-a second outlet; 230-a second heat exchange unit; 300-a transition tube; 310-a first end; 320-a second end; 330-an infusion tube; 340-four-way valve; 350-a gas-liquid separator; 360-exhaust pipe; 400-a heat exchanger; 500-an air conditioner; d2-air inlet direction.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

[ first embodiment ] A method for manufacturing a semiconductor device

Referring to fig. 2 and 3, in one particular embodiment, a heat exchanger 400 includes: the heat exchanger comprises a first heat exchange module 100, wherein the first heat exchange module 100 is provided with a first heat exchange unit 130, the first heat exchange unit 130 is provided with a first inlet 110, and the first inlet 110 corresponds to at least two first outlets 120; the second heat exchange module 200, the second heat exchange module 200 is provided with a second heat exchange unit 230, the second heat exchange unit 230 is provided with second inlets 210, and each second inlet 210 corresponds to at least two second outlets 220; the first outlets 120 of the first heat exchange modules 100 arranged from top to bottom along the height direction are connected with the second inlets 210 of the second heat exchange modules 200 arranged from bottom to top along the height direction in a one-to-one correspondence manner.

First heat exchange module 100 and the vertical setting of second heat exchange module 200 and be parallel to each other, all be equipped with the frame on first heat exchange module 100 and the second heat exchange module 200, the fin is installed on the frame, and first heat exchange unit 130 alternates in the fin with second heat exchange unit 230, and first import 110 is located the one side that is close to liquid side capillary, and second import 210 is located the one side that is close to air side flute type pipe.

The number of the first outlets 120 is equal to that of the second inlets 210, when the first outlets 120 are connected to the second inlets 210, in the height direction, the uppermost first outlet 120 of the first heat exchange unit 130 is connected to the lowermost second inlet 210 of the second heat exchange unit 230, the second uppermost first outlet 120 of the first heat exchange unit 130 is connected to the second lowermost second inlet 210 of the second heat exchange unit 230, and so on until all the first outlets 120 are in one-to-one correspondence with the second inlets 210.

Preferably, one first inlet 110 corresponds to three first outlets 120, so as to further increase the flow path of the evaporator and improve the heating capacity of the evaporator.

Through establishing ties first heat transfer unit 130 and second heat transfer unit 230, the effect of one advance four plays has been realized, the flow path of evaporimeter has been increased, the effect of heating of heat exchanger 400 has been promoted, through connect corresponding first export 120 and second import 210 with crisscross form in the direction of height, let the refrigerant of first heat exchange module 400 top carry the lower part of second heat exchange module 200 again after the heat transfer, thereby realize the homogeneity of heat exchanger heat transfer, the heat transfer ability of heat exchanger has also been improved when having adapted to wind field inhomogeneity.

Further, there are a plurality of first heat exchange units 130, and the plurality of first heat exchange units 130 are connected in parallel and arranged along the height direction of the first heat exchange module 100; the number of the second heat exchange units 230 is plural, and the plural second heat exchange units 230 are connected in parallel and arranged along the height direction of the second heat exchange module 200; the first heat exchange unit 130 is connected to the second heat exchange unit 230 by a transition pipe 300.

The first heat exchange module 100 is provided with a plurality of first heat exchange units 130 along a vertical direction, the number of the second heat exchange units 230 is the same as that of the first heat exchange units 130, and is also equal to that of the transition tubes 300, the first end 310 of each transition tube 300 is connected to one of the first outlets 120, the second end 320 of each transition tube 300 is connected to one of the second inlets, and the plurality of transition tubes 300 are connected in a staggered manner.

In the process of arranging along the height direction, the air speed at the second outlet 220 after the transition pipe 300 is adjusted can be adjusted according to the relative position of the first inlet 110 and the second outlet 220 by arranging from the top or from the bottom.

Preferably, the first heat exchange units may also be arranged along the central position of the first heat exchange module 100, when the number of the first heat exchange units 130 is an even number, the number of the first heat exchange units 130 on both sides of the center of the first heat exchange module 100 is the same, when the number of the first heat exchange units 130 is an odd number, two first outlets 120 of one of the first heat exchange units 130 are respectively located on both sides of the center of the first heat exchange module 100, during air outlet, the air speed difference between adjacent second outlets 220 is smaller, the air speed difference between adjacent second outlets 220 is reduced, the air outlet position is also increased to the periphery along the center of the heat exchanger 400, and the diffusion of the wind field is facilitated.

It should be noted that the center of the heat exchange module refers to a position of a midpoint along a vertical direction when the heat exchange module is vertically placed, and in the process of the staggered connection, for one transition pipe 300, the closer the connection position of the transition pipe 300 is to the center of the first heat exchange module 100, the shorter the length of the transition pipe 300 is, and conversely, the longer the length of the transition pipe 300 is.

The parallelly connected setting of a plurality of first heat transfer units 130, the reasonable space that has utilized heat exchanger 400 inside has increased heat exchanger 400's income liquid mouth, cooperates with a plurality of second heat transfer units 230, has increased the flow path of heat exchanger 400 when as the evaporimeter, has promoted the air-out area, along the mode of arranging of direction of height range, lets the wind speed of second export 220 department adjust according to the position of arranging, lets heat exchanger 400 can adapt to different operational environment.

Further, there are a plurality of transition pipes 300, each transition pipe 300 has a first end 310 and a second end 320 opposite to each other, each first end 310 is connected to one first outlet 120, each second end 320 is connected to one second inlet 210, the plurality of first ends 310 are arranged side by side from top to bottom along the height direction of the first heat exchange module 400, and the second ends 320 corresponding to the plurality of first ends 310 are arranged side by side from bottom to top along the height direction of the second heat exchange module 200.

For example, when the heat exchanger 400 is used as an evaporator, one first inlet 110 corresponds to two first outlets 120, one second inlet 210 corresponds to two second outlets 220, liquid-side substances enter the heat exchanger 400 through the first inlet 110 and are discharged from the corresponding four second outlets 220, two transition pipes 300 are required for communication, a first end 310 of the first transition pipe 300 is connected with the upper first outlet 120, a second end 320 of the first transition pipe is connected with the lower second inlet 210, one end of the second transition pipe 300 is connected with the lower first outlet 120, and the second end 320 of the second transition pipe is connected with the upper second inlet 210, so as to balance the influence of the wind speed caused by the height difference between the two first outlets 120, and make the wind speed on one side of the flute-shaped pipe on the gas side more average.

In general, 8 first heat exchange units 130,8 heat exchange units are arranged up and down along a height direction and are symmetrical about the center of the first heat exchange module 100, 8 second heat exchange units 230 are arranged up and down along the height direction and are symmetrical about the center of the second heat exchange module 200, 16 first outlets 120 are arranged on one side of the first heat exchange unit 130 close to the transition pipe 300, 16 second inlets 210 are arranged on one side of the second heat exchange unit 230 close to the transition pipe 300, the 16 first outlets 120 are numbered as LG16, LG15 and LG14 \ 8230from top to bottom in sequence along the height direction, the 16 second outlets 220 are numbered as LG1, LG2 and LG3 \ 8230from top to bottom in sequence along the height direction, 16 transition pipes 300 connect the first outlets 120 and the second inlets 210 with the same number, and complete communication between the first heat exchange module 100 and the second heat exchange module 200 is realized.

The deviation of the upper and lower wind speeds is objective, the average wind speed of each flow path is basically equivalent by connecting the flow path at the upper part and the flow path at the lower part of the heat exchanger 400, for example, the wind speed at LG16 is 4.0m/s, the wind speed at LG15 is 3.8m/s, the wind speed at LG1 is 1.0m/s, and the wind speed at LG2 is 1.2m/s, if the corresponding LG16 and the corresponding LG1 are connected through the transition pipe 300, the average wind speed at G31 and G32 becomes 4m/s, and the average wind speed at G1 and G2 is only 1m/s, so that although the length of the pipeline is saved, the difference of the upper and lower wind speeds is large, the wind field is not uniform, the heating effect is not good, if LG16 at the first outlet 120 is connected with the second inlet 210LG1, the average wind speed at G1 and G2 is (4 + 1.0)/2.5 m/s, the difference of the wind speed at the first outlet 120 and the second inlet 210 are connected, and the difference of LG2 at LG2 is small, and the difference of the upper and lower wind speed at LG 3.2/s is 2.

Preferably, the transition pipe 300 may be made of aluminum, PVC plastic, or the like, so as to reduce the manufacturing cost of the heat exchanger 400.

The first heat exchange unit 130 and the second heat exchange unit 230 are arranged oppositely, so that the first end 310 and the second end 320 are more conveniently connected, the first end 310 and the second end 320 are connected and arranged, the average wind speed of each flow path can be kept consistent after the space inside the heat exchanger 400 is fully utilized, and the stability of the heating effect of the heat exchanger 400 is improved.

Further, the first heat exchanging unit 130 includes: a first bank of tubes 140, the first inlet 110 being in the first bank of tubes 140; one end of the second bank of tubes 150 is connected to the first bank of tubes 140, and the other end is connected to the first end 310, the second bank of tubes 150 is obliquely disposed, the third bank of tubes 160 is disposed on one side of the second heat exchange module 200 close to the first heat exchange module 100, and the third bank of tubes 160 is connected to the second end 320; a fourth row of tubes 170, the fourth row of tubes 170 being connected to the third row of tubes 160, a second outlet 220 being provided in the fourth row of tubes 170, the fourth row of tubes 170 being arranged obliquely.

The first row of tubes 140 is communicated with the liquid side capillary tubes, the substances in the liquid side capillary tubes enter the first heat exchange units 130 through the first row of tubes 140, when a plurality of first heat exchange units 130 are provided, the plurality of first heat exchange units 130 simultaneously receive the substances from the liquid side capillary tubes, the second row of tubes 150 adopt an inclined insertion tube type, the first outlets 120 are arranged from top to bottom in the height direction, so that the number of U tubes required by each flow path is reduced, so that the length of the flow path is reduced, the inclination direction of each second row of tubes 150 is consistent with the inclination angle, one end of the third row of tubes 160 is connected with the second end 320, the other end of the third row of tubes is connected with the fourth row of tubes 170, the inclination direction of the fourth row of tubes 170 is the same as that of the second row of tubes 150, and the second outlets 220 on the fourth row of tubes 170, to which the third row of tubes 150 corresponding to the second row of tubes 150, are arranged from bottom to top in the height direction.

It should be noted that the oblique arrangement is to insert the fins obliquely, and the inserted fins form a certain included angle with the central line of the first heat exchange module 100 in the height direction.

For example, taking the first inlet 110 numbered L7 in fig. 3 as an example, a U-shaped pipe is arranged between numbers 163 and 164, a U-shaped pipe is arranged between numbers 165 and 166, a U-shaped pipe is arranged between numbers 38 and 102, and a U-shaped pipe is arranged between numbers 37 and 101, so that a flow path from L7 to the first outlet 120 numbered LG14 is formed, the flow path from L7 to G27 formed by the transition pipe 300 reaches the second inlet 210 numbered LG14 after the transition, a U-shaped pipe is arranged between numbers 155 and 156, and a U-shaped pipe is arranged between numbers 27 and 91, so that a total of 6U-shaped pipes are required for the flow path from L7 to G27, and if the simple arrangement of one inlet and two outlets is arranged in two rows, 8U-shaped pipes are required to realize the air outlet manner of one inlet and four outlets.

The oblique arrangement of the second row of tubes 150 and the fourth row of tubes 170 reduces the number of U tubes required for each flow path, thereby reducing the total length of the flow paths, reducing pressure drop, and improving the heat exchange capacity of the heat exchanger 400.

Further, the first exhaust pipes 140 are provided with a plurality of pipes and are arranged on one side of the first heat exchange module 100 far away from the second heat exchange module 200, and the plurality of first exhaust pipes 140 are sequentially arranged from top to bottom along the height direction of the first heat exchange module 100.

Typically, the first row of tubes 140 is composed of two U-shaped tubes, and when composed of a plurality of U-shaped tubes, the U-shaped tubes are arranged vertically.

The first row of tubes 140 may be formed by splicing a plurality of U-shaped tubes in the height direction, so that the specific position of the first outlet 120 corresponding to each first inlet 110 in the height direction of the first heat exchange module 100 can be adjusted according to the height of the heat exchanger 400, thereby changing the arrangement density of the second outlets 220 and changing the air outlet density of the wind field.

Referring to fig. 4 and 5, further, in the heating mode, the first tube bank 140, the second tube bank 150, the third tube bank 160 and the fourth tube bank 170 are sequentially connected to form a first heat exchange flow path, and in the cooling mode, the fourth tube bank 170, the third tube bank 160, the second tube bank 150 and the first tube bank 140 are sequentially connected to form a second heat exchange flow path, and the refrigerant flow directions of the first heat exchange flow path and the second heat exchange flow path are opposite.

When the heat exchanger 400 is used as an evaporator, the substance output by the liquid side capillary tube is discharged from the gas side flute tube through the refrigerant via the first heat exchange flow path, one first inlet 110 corresponds to four second outlets 220, and when the heat exchanger 400 is used as a condenser, the refrigerant enters the liquid side capillary tube via the second heat exchange flow path to form a flow path form of four inlets and one outlet.

When the heat exchanger 400 is used as an evaporator, the number of the flow paths of the evaporator is increased to the maximum extent by the first heat exchange flow path, and the evaporation capacity is improved; therefore, the heating capacity of the heat exchanger 400 is improved, when the heat exchanger 400 is used as a condenser, the number of flow paths of the condenser is reduced to the maximum extent by the second heat exchange flow path, the condensing capacity is improved, the refrigerating capacity of the heat exchanger 400 is improved, and after the heating capacity and the refrigerating capacity are improved simultaneously, the capacity and the comprehensive energy efficiency of an air conditioning system using the heat exchanger 400 are improved.

Further, a plurality of first heat exchange modules 100 are arranged side by side along the air inlet direction D2, and each first heat exchange module 100 corresponds to one second heat exchange module 200.

Through setting up a plurality of first heat exchange module 100 and second heat exchange module 200 side by side, promote the heat transfer ability of heat exchanger 400, let heat exchanger 400 can deal with different operational environment, promote heat exchanger 400's practicality.

Referring to fig. 4 and 5, further, the heat exchanger 400 includes: a four-way valve 340, wherein the second outlet 220 is connected with the four-way valve 340; an infusion tube 330, the infusion tube 330 being connected to the first inlet 110; the gas-liquid separator 350, the gas-liquid separator 350 is connected with the four-way valve 340; and an exhaust pipe 360, wherein the exhaust pipe 360 is connected with the four-way valve 340.

The second outlet 220 is connected to the port C of the four-way valve 340, the gas-liquid separator 350 is connected to the compressor and the port S of the four-way valve 340, the compressor is connected to the port D of the four-way valve 340, and the exhaust pipe 360 is connected to the port E of the four-way valve 340.

When the heat exchanger 400 is used as an evaporator, the port S is communicated with the port C, the port D is communicated with the port E, the liquid pipe conveys medium-temperature and medium-pressure refrigerants to the first inlet 110, the medium-temperature and medium-pressure refrigerants are processed by the evaporator and then become low-temperature and low-pressure refrigerants, the low-temperature and low-pressure refrigerants enter the gas-liquid separator 350 from the second outlet 220, the high-temperature and high-pressure refrigerants are changed by the compressor, and finally the high-temperature and high-pressure refrigerants enter the room from the exhaust pipe 360 and are used for increasing the indoor temperature.

When the heat exchanger 400 is used as a condenser, the port E is communicated with the port S, the port D is communicated with the port C, the low-temperature and low-pressure refrigerant is input into the exhaust pipe 360, then enters the compressor through the gas-liquid separator 350, the high-temperature and high-pressure refrigerant output by the compressor enters the second inlet 210, then is radiated through the external fan, outputs the medium-temperature and medium-pressure refrigerant at the first inlet 110, and finally returns to the liquid-side capillary tube through the liquid conveying pipe 330.

An electronic expansion valve is arranged between the infusion tube 330 and the heat exchanger 400, a liquid side stop valve is arranged between the infusion tube 330 and the liquid side capillary tube, a gas side stop valve is arranged between the exhaust tube 360 and the gas side flute tube, the gas side flute tube is controlled to input substances through the gas side stop valve, and the liquid side capillary tube is controlled to input substances through the liquid side stop valve.

The working mode of the heat exchanger 400 is controlled by the four-way valve 340, so that the working mode of the heat exchanger 400 is more convenient to switch.

[ second embodiment ]

Referring to fig. 6, in a specific embodiment, an air conditioner 500 is further provided, in which a heat exchanger 400 is disposed in the air conditioner 500, and the heat exchanger 400 has all technical features of the heat exchanger 400, which is not described again.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.

Claims (10)

1. A heat exchanger, characterized in that the heat exchanger comprises:

the heat exchanger comprises a first heat exchange module (100), wherein the first heat exchange module (100) is provided with a first heat exchange unit (130), the first heat exchange unit (130) is provided with a first inlet (110), and the first inlet (110) corresponds to at least two first outlets (120);

the second heat exchange module (200), the second heat exchange module (200) is provided with a second heat exchange unit (230), the second heat exchange unit (230) is provided with second inlets (210), and each second inlet (210) corresponds to at least two second outlets (220);

the first outlets (120) of the first heat exchange modules (100) are arranged from top to bottom along the height direction, and the second inlets (210) of the second heat exchange modules (200) are arranged from bottom to top along the height direction and are connected in a one-to-one correspondence mode.

2. The heat exchanger of claim 1, comprising:

the number of the first heat exchange units (130) is multiple, and the multiple first heat exchange units (130) are connected in parallel and are arranged along the height direction of the first heat exchange module (100);

the number of the second heat exchange units (230) is multiple, the second heat exchange units (230) are connected in parallel, and are arranged along the height direction of the second heat exchange module (200);

wherein the first heat exchange unit (130) is connected with the second heat exchange unit (230) by a transition pipe (300).

3. The heat exchanger of claim 2, comprising: transition pipe (300) have a plurality ofly, every transition pipe (300) have relative first end (310) and second end (320), every first end (310) and one first export (120) are connected, every second end (320) and one second import (210) are connected, and are a plurality of first end (310) are followed the direction of height of first heat exchange module (100) sets up side by side from last to down, and is a plurality of first end (310) correspond second end (320) are followed the direction of height of second heat exchange module (200) sets up side by side from supreme down.

4. A heat exchanger according to claim 3, characterised in that the first heat exchanging unit (130) comprises:

-a first row of tubes (140), said first inlet (110) being provided in said first row of tubes (140);

one end of the second row of tubes (150) is connected with the first row of tubes (140), the other end of the second row of tubes (150) is connected with the first end (310), and the second row of tubes (150) are obliquely arranged.

5. The heat exchanger according to claim 4, characterized in that the second heat exchanging unit (230) comprises:

the third row of tubes (160), the third row of tubes (160) is arranged on one side of the second heat exchange module (200) close to the first heat exchange module (100), and the third row of tubes (160) is connected with the second end (320);

and the fourth row of tubes (170), the fourth row of tubes (170) is connected with the third row of tubes (160), the second outlet (220) is arranged on the fourth row of tubes (170), and the fourth row of tubes (170) is obliquely arranged.

6. The heat exchanger according to claim 4, wherein a plurality of the first row pipes (140) are arranged on a side of the first heat exchange module (100) away from the second heat exchange module (200), and the plurality of the first row pipes (140) are arranged from top to bottom in sequence along the height direction of the first heat exchange module (100).

7. The heat exchanger of claim 5, comprising:

in the heating mode, the first tube bank (140), the second tube bank (150), the third tube bank (160) and the fourth tube bank (170) are sequentially connected to form a first heat exchange flow path, in the cooling mode, the fourth tube bank (170), the third tube bank (160), the second tube bank (150) and the first tube bank (140) are sequentially connected to form a second heat exchange flow path, and the refrigerant flow directions of the first heat exchange flow path and the second heat exchange flow path are opposite.

8. The heat exchanger of any one of claims 1 to 7, comprising:

a plurality of first heat exchange module (100) set up side by side along air inlet direction (D2), every first heat exchange module (100) corresponds one second heat exchange module (200).

9. The heat exchanger of any one of claims 1 to 7, wherein the heat exchanger comprises:

a four-way valve (340), wherein the second outlet (220) is connected with the four-way valve (340);

an infusion tube (330), the infusion tube (330) being connected to the first inlet (110);

a gas-liquid separator (350), the gas-liquid separator (350) being connected to the four-way valve (340);

and the exhaust pipe (360), wherein the exhaust pipe (360) is connected with the four-way valve (340).

10. An air conditioner, characterized in that the heat exchanger according to any one of claims 1 to 9 is provided in the air conditioner.

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