CN213019974U

CN213019974U - Staggered heat exchanger and air conditioner with same

Info

Publication number: CN213019974U
Application number: CN202021196849.8U
Authority: CN
Inventors: 汪亚东; 赵凯强
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Haier Smart Home Co Ltd
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2021-04-20
Anticipated expiration: 2030-06-24

Abstract

The utility model provides an alternating expression heat exchanger and have its air conditioner, wherein, the alternating expression heat exchanger includes: a housing formed with an accommodation chamber; and a coiled tube disposed within the containment chamber, the coiled tube including a first coiled tube and a second coiled tube, the first coiled tube and the second coiled tube connected to one another and not coplanar; wherein the first coil comprises at least one first sub-coil, the second coil comprises at least one second sub-coil, and in case the first sub-coil is plural, a second sub-coil is provided at least between two first sub-coils; in the case that the second sub-coil is plural, the first sub-coil is disposed at least between two second sub-coils. With this configuration, the refrigerant flow path in the coil is not in a natural order derived from the physical structure of the coil, and therefore, the performance of the air conditioner can be improved.

Description

Staggered heat exchanger and air conditioner with same

Technical Field

The utility model relates to an air treatment technical field especially relates to an alternating expression heat exchanger and have its air conditioner.

Background

An air conditioner generally has a cooling mode and a heating mode, and air with a proper temperature can be supplied to a room by circulating a refrigerant through a loop formed by a compressor-condenser-throttling part (such as an electronic expansion valve or a capillary tube), an evaporator-compressor. Specifically, in the case where the indoor heat exchanger is a condenser, the air conditioner is in a heating mode, and in the case where the indoor heat exchanger is an evaporator, the air conditioner is in a cooling mode.

In addition to the basic temperature conditioning requirement, the user of the air conditioner also has a need to condition the humidity of the indoor air in view of a more comfortable experience. In order to satisfy the requirement of the user for adjusting the humidity of the indoor air, as disclosed in the chinese utility model patent (CN99112401.4), an air conditioner dehumidification control system includes: the compressor, indoor, outdoor heat exchanger and throttling mechanism, the main throttling mechanism that the said outdoor heat exchanger connects is in the complete opening state; the indoor heat exchanger is divided into two sections, and an auxiliary throttling mechanism is connected between the two sections of heat exchangers in series. The system ensures that one section of the heat exchanger in the indoor unit is always in the cooling mode to operate, so as to realize dehumidification, and meanwhile, one section of the indoor heat exchanger releases heat, so that the temperature and the dehumidification are not reduced. However, in this scheme, when the air conditioner is in a cooling mode, one of the two sections is a warming section, and the other is a dehumidifying section; and when the air conditioner is in a heating mode, the dehumidification section in the cooling mode is switched to a heating section.

It can be seen that in this scheme: when the air conditioner is in the cooling and dehumidifying mode, the indoor air is processed in a reasonable manner of firstly dehumidifying and then heating, but when the air conditioner is in the heating mode, the indoor air is processed in a manner of firstly heating before dehumidifying, and obviously, the dehumidification cannot be realized by the processing manner because: the moisture content of the indoor air entering the air conditioner is basically unchanged in the process of heating, so that the higher the temperature of the heated air, the greater the difference with the current dew point temperature. That is, the higher the temperature is, the less likely the condensation is to occur, while the moisture content remains unchanged. Therefore, when the air heated by the temperature-increasing section passes through the dehumidifying section, the temperature of the air is only reduced to the original temperature and does not reach the dew-point temperature, so that the dehumidifying function of the dehumidifying section is ineffective, and the mode switching mechanism of the air conditioner needs to be further improved.

Accordingly, there is a need in the art for a new solution to the above problems.

SUMMERY OF THE UTILITY MODEL

Technical problem

In view of this, the technical problem to be solved by the present invention is how to improve the structure of the heat exchanger, so that when the heat exchanger is applied to an air conditioner, the problem that the dehumidification function of the air conditioner cannot be realized by the processing method of first heating and then dehumidifying mentioned in the background art can be overcome.

Solution scheme

The utility model provides an aspect provides an alternating expression heat exchanger, this heat exchanger includes: a housing formed with an accommodation chamber; and a coiled tube disposed within the containment chamber, the coiled tube including a first coiled tube and a second coiled tube, the first coiled tube and the second coiled tube connected to one another and not coplanar; wherein the first coil comprises at least one first sub-coil, the second coil comprises at least one second sub-coil, and in case the first sub-coil is plural, a second sub-coil is provided at least between two first sub-coils; in the case that the second sub-coil is plural, the first sub-coil is disposed at least between two second sub-coils.

With such an arrangement, the possibility of the air in different parts exchanging heat with different sub-coils crossing each other can be provided, and the heat exchanger can have a high heat exchange quality. Specifically, the method comprises the following steps:

1) on one hand, the non-coplanar structure enables the windward side and the air supply side of the coil pipe to be non-planar. Take first coil pipe and second coil pipe to constitute an arc curved surface as an example, assume that the radial outside of arc curved surface is the windward side and the radial inboard of arc curved surface is the air supply face, then, the air of the coil pipe through the arc curved surface after reaching the air supply face, must have a coil pipe to take place the clash, and the heat transfer quality consequently can become abundant.

It is understood that the curved surfaces are merely illustrative of non-coplanar surfaces, and those skilled in the art can adjust the specific form of non-coplanar surfaces according to actual situations. Such as may be: one of the first coil pipe and the second coil pipe is an arc-shaped curved surface, and the other is a plane, or the first coil pipe and the second coil pipe are both arc-shaped curved surfaces, but the combination of the first coil pipe and the second coil pipe is a hump-shaped structure and does not form an arc-shaped curved surface, and the like.

2) On the other hand, in the process of flowing the refrigerant through the coil, the flow path of the refrigerant in the coil is not a path in a natural order derived based on the physical structure of the coil, but an interlaced path is formed based on the arrangement of the sub-coils and the cross connection between the sub-coils of the first coil and the second coil. Based on the structure, if different sub-coils have different functions, if one coil of two local air with collision is the air after absorbing heat and the other coil is the air after absorbing heat, the heat exchange quality can be enriched.

It can be understood that, the number of the first sub-coil pipes and the number of the second sub-coil pipes can be flexibly selected according to actual situations. Such as may be: the first coil pipe comprises two first sub-coil pipes, the second coil pipe is of an integral structure and can be regarded as a second sub-coil pipe, and at the moment, the second sub-coil pipe is connected with the two first sub-coil pipes in series.

After being applied to the air conditioner with the staggered heat exchanger, based on the cross connection of the sub-coil inside the heat exchanger, the function of each sub-coil is connected probably to have taken place functional adjustment for the order that directly is based on the structure, so, if the air that has carried out convection heat transfer with different sub-coils meets, then the exchange of temperature takes place to make the air conditioner can realize the change of the heat transfer quality of air conditioner based on the heat exchange of air and heat exchanger and the heat exchange between the air of different parts and the air simultaneously.

For the above staggered heat exchanger, in a possible implementation manner, the first coil includes a plurality of first sub-coils, the second coil includes a plurality of second sub-coils, and the first sub-coils and the second sub-coils are connected in a staggered series manner.

With such an arrangement, the probability of collision between different local air increases, and therefore the heat exchanger can have a higher heat exchange quality.

For the above staggered heat exchanger, in a possible implementation manner, the first coil is of a planar structure, the second coil is of a planar structure, and an included angle is formed between the first coil and the second coil.

By such an arrangement, a non-coplanar implementation is provided.

In a possible embodiment, the staggered heat exchanger is provided with a fan, and under the action of the fan, air flows to the side forming the included angle along the side deviating from the included angle.

By such an arrangement, a particular form of increased probability of clashing between air of different locality after passing through the interleaved heat exchanger is provided.

It can be understood that through adjusting the size of contained angle to the combination is adjusted sub-coil pipe (number, size etc.) in the coil pipe (first, second) and is guided the regulation of aspects such as the flow path of air (if increase baffle etc. in the regional suitable position of air supply) under the fan effect, based on the utility model discloses an alternating heat exchanger combines specific experiment and analysis, can make the air conditioner can satisfy different air conditioning demands.

With regard to the above-described staggered heat exchanger, in one possible embodiment, the first coil and the second coil are each a single-layer structure as viewed in a radial direction of the coils.

Through the arrangement, the probability of direct and same-direction superposition between different local air is reduced, and the probability of collision between different local air is indirectly ensured, so that the heat exchanger can have richer heat exchange quality.

For the above staggered heat exchanger, in a possible implementation manner, the first coil includes two first sub-coils arranged up and down, the second coil includes two second sub-coils arranged up and down, and the first sub-coil on the upper side, the second sub-coil on the upper side, the first sub-coil on the lower side, and the second sub-coil on the lower side are connected in series in sequence.

With this arrangement, a basic form of connection is provided. It can be understood that, on the basis of this, the number of (first, second) sub-coils can be further increased, and the increased sub-coils can be further connected in a manner consistent with the connection form of the foundation, and can also be distinguished from the connection form of the foundation, such as: and only the number of the first sub-coil pipes is increased, and the increased first sub-coil pipes are connected in series with the first sub-coil pipe on the upper side at present, and the like.

For the above-mentioned staggered heat exchanger, in a possible embodiment, the first sub-coil on the upper side and the second sub-coil on the upper side are directly connected in series to form a first part, the first sub-coil on the lower side and the second sub-coil on the lower side form a second part, and the first part and the second part are connected in series as follows: the lower side of the second sub-coil pipe on the upper side and the upper side of the first sub-coil pipe on the lower side are connected in series through a series connection pipeline, a throttling part is arranged on the series connection pipeline, and the throttling part is provided with a switching mechanism so as to: after entering the first sub-coil on the upper side or the second sub-coil on the lower side, the refrigerant flows out of the heat exchanger in a mode of flowing through the throttling component and/or flowing through the switching mechanism.

Through the arrangement, a specific serial connection mode is provided. Therefore, when the heat exchanger assembly is applied to an air conditioner, the performance of the air conditioner can be optimized by combining the throttling component with the existing throttling component of the air conditioner.

It can be understood that, in the three possible paths of the refrigerant mentioned in the present embodiment, all or only a part of the paths may be retained in the form of the first throttling member and the switching mechanism.

In a possible embodiment, the serial pipeline is connected to two ends of the throttling component and is connected to a section of connecting pipeline, and a valve is arranged on the section of connecting pipeline, so that the refrigerant can only flow out of the heat exchanger in a manner of flowing through one of the throttling component and the valve after entering the first sub-coil on the upper side or the second sub-coil on the lower side by switching the on-off state of the valve.

By such an arrangement, a specific manner of switching mechanism is given.

In a possible embodiment, for the above-described staggered heat exchanger, the throttling element is a capillary tube.

Through the arrangement, the switching between the two paths can be realized directly by switching the switching state of the valve.

The throttle member may be an electronic expansion valve, and it is understood that after the capillary tube is replaced with the electronic expansion valve, the opening and closing state of the valve and the opening degree of the electronic expansion valve need to be switched at the same time to switch between the two paths.

The utility model discloses another aspect still provides an air conditioner, this air conditioner include aforementioned arbitrary the staggered heat exchanger.

It can be understood that the air conditioner has all the technical effects of the staggered heat exchanger, and the details are not repeated herein.

Drawings

The present invention will be described with reference to the accompanying drawings in conjunction with a cabinet air conditioner. In the drawings:

fig. 1 is a schematic view of a cabinet air conditioner according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a cabinet air conditioner according to an embodiment of the present invention;

fig. 3 shows a schematic structural diagram of an interleaved heat exchanger according to an embodiment of the present invention;

fig. 4 is a schematic diagram illustrating the principle of the interleaved heat exchanger according to an embodiment of the present invention when the cabinet air conditioner is in the cooling mode;

fig. 5 is a schematic diagram illustrating the principle of the interleaved heat exchanger according to an embodiment of the present invention when the cabinet air conditioner is in the heating mode;

fig. 6 is a schematic diagram illustrating the principle of the staggered heat exchanger according to an embodiment of the present invention when the cabinet air conditioner is in the heating and dehumidifying mode; and

fig. 7 is a schematic diagram illustrating the principle of the staggered heat exchanger according to an embodiment of the present invention when the cabinet air conditioner is in the non-cooling dehumidification mode.

List of reference numerals:

1. an air conditioner; 10. a compressor; 20. an outdoor heat exchanger; 30. an indoor heat exchanger; 3001. a first coil pipe; 3002. a second coiled tube; 30011. a first sub-coil; 30021. a second sub-coil; 301. a first portion; 302. a second portion; 40. a four-way valve; 50. a gas-liquid separator; 61. an outdoor fan; 62. an indoor fan; 71. a capillary tube; 72. an electronic expansion valve; 8. an electromagnetic valve.

In fig. 4 to 7, among the air flows flowing from right to left, the dotted line represents hot air, and the solid line represents cold air.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. Although the present embodiment is described by taking as an example that the first coil and the second coil each include two substantially identical sub-coils, it is obvious that the specification and number of the sub-coils, and the specific form of the first part and the second part formed by connecting in series, etc. can be adjusted according to the actual situation. In addition, although the present embodiment is described in conjunction with a cabinet air conditioner, it is obvious that the technical solution of the present invention is applicable to other types of air conditioners, such as a window air conditioner.

It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate directions or positional relationships based on those shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element 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" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

An air conditioner generally includes an outdoor unit mainly including a compressor, an outdoor fan, and an outdoor heat exchanger (generally called a condenser), and an indoor unit mainly including an indoor heat exchanger (generally called an evaporator), an indoor fan, an electric cabinet, and the like, and the compressor-condenser-evaporator-compressor form a refrigerant circulation circuit. When the refrigerant circulates along the compressor → the outdoor heat exchanger → the indoor heat exchanger → the compressor, the air conditioner is in a refrigerating cycle. When the refrigerant circulates along the compressor → the indoor heat exchanger → the outdoor heat exchanger → the compressor, the air conditioner is in a heating cycle. The utility model discloses in, at first improve to indoor heat exchanger, specifically, will the utility model discloses an alternating heat exchanger is as indoor heat exchanger of cabinet air conditioner. Based on the improvement, the cooperation between the valve and the throttling component (electronic expansion valve) of the air conditioner configuration is further combined, so that the performance of the air conditioner is improved, and specifically: when the air conditioner does not need to introduce a dehumidification function, the normal refrigeration and heating requirements can be met. And when the air conditioner needs to introduce the dehumidification function, can satisfy the dehumidification demand under the prerequisite that satisfies the temperature demand, especially, in the dehumidification mode of not cooling down in the following, the phenomenon that the temperature that the user does not expect reduces can not appear in the in-process that satisfies the dehumidification demand.

Referring to fig. 1 to 3, fig. 1 shows a schematic diagram of a cabinet air conditioner according to an embodiment of the present invention, fig. 2 shows a schematic diagram of a cabinet air conditioner according to an embodiment of the present invention, and fig. 3 shows a schematic diagram of an interleaved heat exchanger according to an embodiment of the present invention. As shown in fig. 1 to 3, the air conditioner 1 mainly includes a compressor 10, an outdoor heat exchanger 20 and an indoor heat exchanger 30, a four-way valve 40, a gas-liquid separator 50, an electronic expansion valve 72, and a solenoid valve 8.

Among them, the outdoor heat exchanger 20 is provided with the outdoor fan 51, and the indoor fan 52 (centrifugal fan) is provided below the indoor heat exchanger 30, and with reference to the orientation in fig. 2, air enters the indoor space by passing through the right sides of the upper first portion and the upper second portion to the left side, respectively, by the indoor fan. The four-way valve 40 has a (A, B, C, D) side, the number of throttle elements includes two, and the two are a capillary tube 71 and an electronic expansion valve 72, respectively, and the valve 8 is an electromagnetic valve. The specific structure of the air conditioner is as follows: the exhaust port of compressor 10 links to each other with the C side of four-way valve, and the A side of four-way valve links to each other with the induction port of compressor 10 through vapour and liquid separator 50, has set gradually indoor heat exchanger, outdoor heat exchanger and the electronic expansion valve 72 between the two between the B side of four-way valve and the D side, and indoor heat exchanger includes first portion 301 and second portion 302, and first portion and second portion are connected through the pipeline that concatenates, are provided with capillary 71 on the pipeline that concatenates, and capillary 71 disposes solenoid valve 8, specifically: the serial pipeline is connected with a section of connecting pipeline at two ends of the capillary tube in parallel, and the electromagnetic valve 8 is arranged on the connecting pipeline.

The staggered heat exchanger as the indoor heat exchanger includes a housing 300 formed with a receiving chamber and a coil disposed in and disposed in the receiving chamber, referring to the orientation of fig. 3, the coil includes a first coil 3001 inclined downward from left and right and a second coil 3002 inclined upward from left and right, and the first coil and the second coil are both single-layer structures. The first coil pipe comprises two first sub-coil pipes 30011 arranged up and down, the second coil pipe comprises two second sub-coil pipes 30021 arranged up and down, and the first sub-coil pipe on the upper side, the second sub-coil pipe on the upper side, the first sub-coil pipe on the lower side and the second sub-coil pipe on the lower side are sequentially connected in series. In the present embodiment, the refrigerant flows from the upper side of the first sub-coil to the lower side of the second sub-coil. It can be understood that the refrigerant may flow into the lower portion of the second sub-coil pipe at the lower side and flow out of the upper portion of the first sub-coil pipe at the upper side. The first sub-coil pipe on the upper side and the second sub-coil pipe on the upper side are directly connected in series to form a first part 301, the first sub-coil pipe on the lower side and the second sub-coil pipe on the lower side form a second part 302, and the first part and the second part are connected in series in the following mode: the downside of the second sub-coil pipe of upside and the upside of the first sub-coil pipe of downside concatenate through the pipeline that concatenates, are provided with capillary 71 on the concatenation pipeline, and capillary 71 disposes solenoid valve 8, specifically: the serial pipeline is connected with a section of connecting pipeline at two ends of the capillary tube in parallel, and the electromagnetic valve 8 is arranged on the connecting pipeline. By such a serial connection, the refrigerant is required to flow out of the heat exchanger through the second part and the first part in sequence after entering the second part.

Based on the structure, the controller of the air conditioner can switch the connection state of the four-way valve, the opening degree of the electronic expansion valve and the on-off state of the electromagnetic valve, so as to realize the refrigeration/heating dehumidification/non-cooling dehumidification mode of the air conditioner. Specifically, the method comprises the following steps:

referring to fig. 4, fig. 4 is a schematic view illustrating a state of an interleaved heat exchanger according to an embodiment of the present invention when a cabinet air conditioner is in a cooling mode. As shown in fig. 4, when the air conditioner is in the cooling mode, the controller causes: opening the electromagnetic valve; the communication state on the (A, B, C, D) side of the four-way valve is switched to: the A-B side is conducted, and the C-D side is conducted. The flow path of the refrigerant is a first circulation loop as follows: compressor → outdoor heat exchanger → electronic expansion valve → first part → capillary tube and solenoid valve → second part → gas-liquid separator → compressor. In this mode, the opening degree of the electronic expansion valve is adjusted according to parameters such as the specific temperature corresponding to the refrigeration demand and the operating frequency of the compressor.

It should be noted that, because the capillary tube is usually a copper tube with a small bore diameter, in the cooling mode, after the electromagnetic valve is opened, it is equivalent to a bypass opening, and the refrigerant can smoothly pass through the fourth electromagnetic valve, so that the refrigerant can not flow through the capillary tube any more, and the capillary tube at this time is equivalent to a short circuit, and no refrigerant passes through, and thus the throttling function is not performed. Therefore, in a normal case (a case where a throttling function is performed), the upstream side of the capillary is a high-pressure side, and the downstream side is a low-pressure side. However, after the solenoid valve is opened, the pressures on both sides are almost equal to each other, which corresponds to the case where the first and second portions are connected by a thick pipe. Therefore, the "capillary tube and the solenoid valve" in the flow path of the refrigerant should be substantially "solenoid valves".

It can be seen that in the case where the air conditioner is in the cooling mode, the entire indoor heat exchanger corresponds to an evaporator in which the first and second portions are connected in series. Through the staggered and inclined arrangement of the first part and the second part, the cold air flow sent to the indoor space can have richer air supply directions.

Referring to fig. 5, fig. 5 is a schematic diagram illustrating a state of an interleaved heat exchanger according to an embodiment of the present invention when a cabinet air conditioner is in a heating mode. As shown in fig. 5, when the air conditioner is in the normal heating mode (heating mode not including the dehumidification demand), the controller causes: opening the electromagnetic valve; the communication state of the (A, B, C, D) side of the four-way valve is switched to: the B-C side is conducted, and the A-D side is conducted. The flow path of the refrigerant is a second circulation loop as follows: compressor → second portion → capillary tube and solenoid valve → first portion → electronic expansion valve → outdoor heat exchanger → gas-liquid separator → compressor.

As in the cooling mode described above, the opening degree of the electronic expansion valve may be adjusted according to parameters such as a specific temperature corresponding to a heating demand and an operating frequency of the compressor. In the cooling mode, the "capillary tube and the solenoid valve" in the flow path of the refrigerant should be substantially "solenoid valves".

It can be seen that, in the case where the air conditioner is in the heating mode, the entire indoor heat exchanger corresponds to a condenser in which the first portion and the second portion are connected in series. Through the staggered and inclined arrangement of the first part and the second part, the hot air flow sent to the indoor space can have richer air supply directions.

Referring to fig. 6, fig. 6 is a schematic diagram illustrating a state of an interleaved heat exchanger according to an embodiment of the present invention when a cabinet air conditioner is in a heating and dehumidifying mode. As shown in fig. 6, when the air conditioner is in a heating and dehumidifying mode (a heating mode including a dehumidification demand), the controller causes: closing the electromagnetic valve; the communication state on the (A, B, C, D) side of the four-way valve is switched to: the B-C side is conducted, and the A-D side is conducted. The flow path of the refrigerant is a third circulation loop as follows: compressor → second portion → capillary tube → first portion → electronic expansion valve → outdoor heat exchanger → gas-liquid separator → compressor. Meanwhile, in order to ensure the dehumidification effect, the opening degree of the electronic expansion valve is set to a high value, for example, the electronic expansion valve can be continuously set to the maximum opening degree.

It can be seen that in the case where the air conditioner is in the heating and dehumidifying mode, the first portion corresponds to the warming section, and the second portion corresponds to the dehumidifying section, where a portion of the air is dehumidified through the dehumidifying section, and another portion of the air is heated through the warming section. It will be appreciated that the air, after having been dehumidified (reduced in temperature) by passing through the dehumidifying section, is mixed with hot air heated by passing through the warming section, so that the temperature is raised by heat exchange between the gas and the air. Therefore, the air conditioner can realize dehumidification and ensure the temperature rise of the indoor space. By the staggered, inclined arrangement of the first and second portions, heat exchange between the gas and the air is promoted, thereby improving the quality of the air flow sent to the indoor space.

Referring to fig. 7, fig. 7 is a schematic diagram illustrating a state of an interleaved heat exchanger when a cabinet air conditioner is in a non-cooling dehumidification mode according to an embodiment of the present invention. As shown in fig. 7, when the air conditioner is in the dehumidification-only no-cool down condition corresponding to the no-cool down dehumidification mode, the controller causes: closing the electromagnetic valve; the communication state on the (A, B, C, D) side of the four-way valve is switched to: the A-B side is conducted, and the C-D side is conducted. The flow path of the refrigerant is a fourth circulation loop as follows: compressor → electronic expansion valve → first portion → capillary tube → second portion → gas-liquid separator → compressor. Meanwhile, in order to ensure the dehumidification effect, the opening degree of the electronic expansion valve is set to a high value, and the electronic expansion valve may be continuously set to the maximum opening degree, as similar to the heating and dehumidification mode described above.

It can be seen that in the case that the air conditioner is in the non-cooling dehumidification mode, the first portion corresponds to the temperature-raising section, and the second portion corresponds to the dehumidification section, at this time, a part of air is dehumidified through the dehumidification section, and another part of air is heated through the temperature-raising section. It will be appreciated that the air, after having been dehumidified (reduced in temperature) by passing through the dehumidifying section, is mixed with hot air heated by passing through the warming section, so that the temperature is raised back by heat exchange between the gas and the air. Therefore, the air conditioner can realize dehumidification and does not influence the temperature of the indoor space in the dehumidification process. By the staggered, inclined arrangement of the first and second portions, heat exchange between the gas and the air is promoted, thereby improving the quality of the air flow sent to the indoor space.

The difference between the cooling-free dehumidification mode and the heating dehumidification mode is as follows: when the air conditioner is in the non-cooling dehumidification mode, the outdoor heat exchanger is short-circuited out of the refrigerant loop, so that the heat exchange amount of the dehumidification section and the temperature rise section is approximately the same, and the cold and the hot are opposite, and the air temperature of the indoor space is approximately kept unchanged at the moment. The way of short-circuiting the outdoor heat exchanger out of the refrigerant loop can be realized by any feasible way such as adding a corresponding valve, and the like, and the details are not repeated herein. When the air conditioner is in a heating and dehumidifying mode, the outdoor heat exchanger is in a refrigerant circuit as an evaporator, so that the heat exchange amount of the dehumidifying section and the temperature raising section is opposite to each other in terms of heat and heat, and the sum of the heat exchange amounts is a heat release amount which is approximately the same as the heat absorption amount of the evaporator, so that the air temperature of the indoor space is raised at the moment.

The utility model discloses in, through carrying out crisscross, the arranging of slope in the physics position between the different sub-coil pipes that will regard as indoor heat exchanger's alternating heat exchanger, can make the heat exchanger obtain more excellent mixed wind quality in the air supply side. Especially for the non-cooling dehumidification mode and the heating dehumidification mode, the parts used for heating and dehumidification in the functions are arranged in a staggered and inclined way in the physical direction, so that the performance of the heat exchanger can be ensured by combining the heat exchange between the gas and the coil and the heat exchange between the gas and the gas.

So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. An interleaved heat exchanger, the heat exchanger comprising:

a housing formed with an accommodation chamber; and

a coiled tube disposed within the containment chamber, the coiled tube including a first coiled tube and a second coiled tube, the first coiled tube and the second coiled tube connected to one another and not coplanar;

wherein the first coil comprises at least one first sub-coil, the second coil comprises at least one second sub-coil, and

when the first sub-coil pipes are multiple, at least a second sub-coil pipe is arranged between the two first sub-coil pipes;

in the case that the second sub-coil is plural, the first sub-coil is disposed at least between two second sub-coils.

2. The interleaved heat exchanger of claim 1 wherein the first coil comprises a plurality of first sub-coils and the second coil comprises a plurality of second sub-coils, and wherein the first sub-coils and the second sub-coils are connected in a staggered series.

3. The interleaved heat exchanger of claim 2 wherein the first coil is planar and the second coil is planar, the first coil and the second coil forming an included angle therebetween.

4. The interleaved heat exchanger as set forth in claim 3 wherein said interleaved heat exchanger is configured with a fan and wherein

Under the action of the fan, air flows to one side forming the included angle along one side deviating from the included angle.

5. The interleaved heat exchanger of claim 2 wherein the first coil and the second coil are each of a single layer construction as viewed in the radial direction of the coils.

6. The interleaved heat exchanger according to any one of claims 2 to 5 wherein the first coil comprises two first sub-coils disposed one above the other, and the second coil comprises two second sub-coils disposed one above the other, the first sub-coil on the upper side, the second sub-coil on the upper side, the first sub-coil on the lower side, and the second sub-coil on the lower side being sequentially connected in series.

7. The interleaved heat exchanger according to claim 6 wherein the upper first sub-coil and the upper second sub-coil are directly connected in series to form a first section, the lower first sub-coil and the lower second sub-coil form a second section, and the first section and the second section are connected in series as follows:

the lower side of the second sub-coil pipe on the upper side and the upper side of the first sub-coil pipe on the lower side are connected in series through a series connection pipeline, a throttling part is arranged on the series connection pipeline, and the throttling part is provided with a switching mechanism so as to:

after entering the first sub-coil on the upper side or the second sub-coil on the lower side, the refrigerant flows out of the heat exchanger in a mode of flowing through the throttling component and/or flowing through the switching mechanism.

8. The interleaved heat exchanger as claimed in claim 7, wherein the serial pipeline is connected to two ends of the throttling element and is connected to a connecting pipeline, and a valve is disposed on the connecting pipeline, so that the refrigerant can flow out of the heat exchanger only through one of the throttling element and the valve after entering the first sub-coil on the upper side or the second sub-coil on the lower side by switching an on/off state of the valve.

9. The interleaved heat exchanger of claim 8 wherein the throttling element is a capillary tube.

10. An air conditioner characterized in that it comprises an interleaved heat exchanger according to any one of claims 1 to 9.