WO2020093712A1

WO2020093712A1 - Air conditioner apparatus, and indoor unit and outdoor unit thereof

Info

Publication number: WO2020093712A1
Application number: PCT/CN2019/093750
Authority: WO
Inventors: 郭应辉
Original assignee: 深圳市贝腾科技有限公司
Priority date: 2018-11-06
Filing date: 2019-06-28
Publication date: 2020-05-14
Also published as: CN210267825U; CN110207431A; US20210010760A1

Abstract

Provided is an air conditioner apparatus (100), comprising an evaporation device (10), a refrigerant compressor (30), a condensation device (20), a refrigerant filter (40) and a throttling device (50), wherein at least one of the evaporation device (10) and the condensation device (20) comprises the following heat exchange structures: a housing (11, 19), multiple refrigerant medium circulating channels (121, 161) and multiple fins (13, 17), with the housing (11, 19) having an upper end opening and a lower end opening. The multiple refrigerant medium circulating channels (121, 161) are arranged inside the housing (11, 19) and are radially distributed by taking the center line of the housing (11, 19) as a center, and each refrigerant medium circulating channel (121, 161) extends in a height direction of the housing (11, 19) and runs from an upper end of the housing (11, 19) through to a lower end of the housing (11, 19). The multiple fins (13, 17) are arranged between the refrigerant medium circulating channels (121, 161) and between the housing (11, 19) and the refrigerant medium circulating channels (121, 161), and gaps (18) for allowing an airflow to pass are formed between the fins (13, 17). In addition, further disclosed are an indoor unit and an outdoor unit of an air conditioner apparatus.

Description

Air conditioning equipment and its internal and external machines

Technical field

The present disclosure relates to the field of air refrigeration, in particular to an air conditioner and its internal and external machines.

Background technique

The air conditioner generally includes a main body and an external unit. The main unit is usually placed indoors to output cold wind, and the external unit is usually placed outdoors to cool the refrigerant, and the hot air after heat exchange with the refrigerant is discharged outside. External machines usually include refrigerant compressors, condensers, capillaries, etc. The refrigerant compressor compresses the refrigerant into a high-temperature and high-pressure liquid, the condenser cools the high-temperature and high-pressure liquid into a medium-temperature and high-pressure liquid, and the capillary decompresses the medium-temperature and high-pressure liquid into a low-temperature and low-pressure liquid. The low-temperature and low-pressure liquid flows into the indoor main engine, exchanges heat with the evaporator in the main engine, and cools the indoor air.

Traditionally, the heat exchange devices of air conditioners (including evaporators and condensers) are usually composed of circuitous copper tubes and fins provided on the copper tubes. However, the large size of the heat exchange device is not conducive to the reduction of the size of the air conditioner.

Summary of the invention

In order to solve the problem that the heat exchange device of the air conditioner is relatively large in the related art, the present disclosure provides an air conditioner.

The present disclosure provides an air conditioner. The air conditioner is an integrated machine. The air conditioner includes:

Evaporation device, used to evaporate vaporized refrigerant to output cold air;

A refrigerant compressor, used to compress the gasified refrigerant of the evaporation device into a liquid refrigerant of high temperature and high pressure;

A condensing device for cooling the high-temperature and high-pressure liquid refrigerant output by the refrigerant compressor into a medium-temperature and high-pressure refrigerant;

At least one of the evaporating device and the condensing device includes a heat exchange structure, the heat exchange structure is integrally extruded, and the heat exchange structure is formed with at least one medium circulation channel. A plurality of fins are formed on the periphery, and the fins are spaced from each other to form a gap through which air flows.

Optionally, the heat exchange structure includes a plurality of medium tubes, the medium tubes form the medium circulation channels, the fins extend along the height direction of the medium tubes, and the outer wall of each medium tube The fins are connected on the top.

Optionally, one of the media tubes is located at the geometric center of the heat exchange structure, the remaining media tubes are circumferentially distributed around the media tube, and the fins are along the periphery of the media tube at the geometric center Extend in the radial direction.

Optionally, the cross section of the heat exchange structure is circular;

A plurality of the medium tubes are centered on the center of the cross-section, and are distributed on a plurality of circles with different radii at intervals.

Optionally, the heat exchange structure includes at least two medium circulation channels, the heat exchange structure includes at least one medium tube, a part of the medium circulation channel is formed by the medium tube, and another part of the medium circulation channel is formed by the Fins are formed, the fins extending in the height direction of the dielectric tube.

Optionally, one of the medium tubes is located at the geometric center of the heat exchange structure, and the medium circulation channel formed by the fins is circumferentially distributed around the medium tube located at the geometric center;

The fins extend in a radial direction from the dielectric tube at the geometric center.

Optionally, a copper tube is inserted into the medium circulation channel formed by the fins.

Optionally, the fins are in the shape of forks or pliers;

The fork-shaped fin includes a rod portion and a bifurcated portion, the rod portion is connected to the dielectric tube at the geometric center, and the bifurcated portion is connected to the rod portion;

The pliers-shaped fins include two opposite-shaped profiled fins, the ends of the profiled fins away from the geometric center are curved, and the curved-shaped ends of the two profiled fins surround the medium Circulation channel.

Optionally, the heat exchange structure further includes a housing, and the medium tube and the fins are placed in the housing;

The housing is integrally extruded with the media tube and the fin, or the media tube and the fin are extruded, and the housing is formed separately from the media tube and the fin.

Optionally, a plurality of protrusions protruding inward are provided on the inner wall of the medium tube located at the geometric center of the heat exchange structure.

Optionally, the outer shell of the heat exchange structure of the condensing device is provided with a plurality of ventilation holes, the outer shell of the outer shell is provided with an outer shell, and the outer shell is provided with a plurality of vent holes;

A fan for accelerating the flow of airflow is provided at the end of the outer shell, and the external wind entering under the action of the fan flows to the atmosphere through the ventilation holes after heat exchange.

Optionally, the air conditioning equipment further includes a refrigerant filter and a throttling device, the refrigerant filter is used to filter impurities in the medium-temperature high-pressure liquid refrigerant output by the condensation device, and the throttling device is used to convert the refrigerant The medium temperature and high pressure liquid refrigerant filtered by the filter is reduced to a low temperature and low pressure liquid refrigerant, and the reduced temperature low temperature and low pressure liquid refrigerant is sent to the evaporation device;

The refrigerant compressor, the condensing device, the refrigerant filter and the throttling device are placed in a sealed box, and the evaporation device is located outside the sealed box;

The airtight interface is provided with an air inlet interface and an air outlet interface, an air exhaust pipe is connected to the air outlet interface, the air inlet interface communicates with the air inlet of the condensation device, and the air outlet interface is The exhaust port of the condensation device is in communication.

Optionally, both the condensation device and the evaporation device include the heat exchange structure, and the condensation device and the evaporation device are both cylindrical;

The condensing device and the evaporating device are fixed upright on the same base.

Optionally, a fan is provided at the end of the evaporator, and the other end of the evaporator is different from the fan and is provided with an airflow opening for airflow in and out.

The present disclosure also provides an internal unit of an air-conditioning apparatus, characterized in that it includes an evaporating device and a fan provided at an end of the evaporating device. , Including a heat exchange structure, the heat exchange structure is integrally extruded, the heat exchange structure is formed with at least one medium circulation channel, the outer periphery of the medium circulation channel is formed with a plurality of fins, the fins They are spaced from each other to form a gap through which air flows.

Optionally, the heat exchange structure includes a plurality of medium tubes, the medium tubes form the medium circulation channels, the fins extend along the height direction of the medium tubes, and the outer wall of each medium tube The fins are connected on the top;

One of the medium tubes is located at the geometric center of the heat exchange structure, the remaining medium tubes are distributed circumferentially around the medium tube, and the fins extend in the radial direction of the medium tube at the geometric center on the outer circumference of the medium tube .

Optionally, the heat exchange structure includes at least two medium circulation channels, the heat exchange structure includes at least one medium tube, a part of the medium circulation channel is formed by the medium tube, and another part of the medium circulation channel is formed by the Fins are formed, and the fins extend along the height direction of the dielectric tube;

One of the medium tubes is located at the geometric center of the heat exchange structure, and the medium circulation channels formed by the fins are circumferentially distributed around the medium tube at the geometric center;

The fins extend in a radial direction from the dielectric tube located at the geometric center;

A plurality of protrusions protruding inward are provided on the inner wall of the medium tube located at the geometric center of the heat exchange structure.

The present disclosure also provides an external unit of an air conditioner, including:

Refrigerant compressor, used to compress the refrigerant vaporized by the evaporating device in the air-conditioning equipment into a high-temperature and high-pressure liquid refrigerant;

Condensing device, used to cool the high-temperature and high-pressure liquid refrigerant output by the refrigerant compressor into medium-temperature and high-pressure refrigerant;

The fan is provided at the end of the condensation device;

The condensation device includes a heat exchange structure, which is integrally extruded and formed. The heat exchange structure is formed with at least one medium circulation channel, and a plurality of fins are formed on the outer periphery of the medium circulation channel. The fins are spaced apart from each other, forming a gap through which air flows.

Optionally, the external unit of the air-conditioning equipment further includes a refrigerant filter and a throttling device, the refrigerant filter is used to filter impurities in the medium-temperature high-pressure liquid refrigerant output by the condensation device, and the throttling device is used to The medium-temperature and high-pressure liquid refrigerant filtered by the refrigerant filter is reduced in pressure to a low-temperature and low-pressure liquid refrigerant, and the reduced-pressure low-temperature and low-pressure liquid refrigerant is delivered to the internal unit of the air-conditioning equipment;

The refrigerant compressor, the condensation device, the refrigerant filter and the throttling device are placed in a closed box;

An air inlet interface and an air outlet interface are provided on the upper side of the closed box, and the hot air that enters the condensing device from the air inlet interface for heat exchange is discharged through the air outlet interface.

The present disclosure also provides an air-conditioning apparatus, which is characterized by including the above-mentioned internal machine and the above-mentioned external machine, and the internal machine and the external machine are connected by a connection pipe.

The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects:

The present disclosure provides an air conditioner including an evaporation device, a refrigerant compressor, and a condensation device. At least one of the evaporation device and the condensation device includes a heat exchange structure integrally extruded, the heat exchange structure is formed with at least one medium circulation channel, and a plurality of fins are formed on the outer periphery of the medium circulation channel The fins and fins are spaced from each other to form a gap through which air flows. The heat exchange structure included in the evaporation device and / or the condensation device is integrally extruded to reduce the manufacturing difficulty. To a certain extent, the spacing between the fins can be designed to be smaller, making the overall structure more compact and improving the integration, Therefore, the evaporation device and / or the condensation device can be designed to be smaller, reducing the volume of the evaporation device and / or the condensation device, thereby reducing the volume of the air conditioning equipment, and meeting people's demand for product miniaturization. And the heat exchange structure is formed with a medium circulation channel for the medium (for example, refrigerant) to circulate, and heat dissipation fins are formed around the medium circulation channel, so that the airflow passing through the gap between the fins can contact the fins to exchange heat, thereby achieving the airflow The purpose of cooling or heating.

The present disclosure provides an internal unit of an air-conditioning apparatus. The internal unit includes an evaporating device and a fan provided at an end of the evaporating device. The evaporating device is used to evaporate vaporized refrigerant to output cold air. The evaporation device includes a heat exchange structure, which is integrally extruded and formed. The heat exchange structure is formed with at least one medium circulation channel, and a plurality of fins are formed on the outer periphery of the medium circulation channel, and the fins are spaced from each other , Forming a gap for the airflow to pass through. The heat exchange structure included in the evaporation device is integrally extruded to reduce the manufacturing difficulty. To a certain extent, the spacing between the fins can be designed to be smaller, so that the overall structure is more compact and the integration is higher, so that the evaporation device can be Designed to be smaller, reducing the volume of the evaporation device, thereby reducing the volume of the internal unit of the air conditioning equipment, to meet people's miniaturization of products. And the heat exchange structure is formed with a medium circulation channel for the medium (for example, refrigerant) to circulate, and heat dissipation fins are formed around the medium circulation channel, so that the airflow passing through the gap between the fins can contact the fins to exchange heat, thereby achieving the airflow The purpose of cooling.

The present disclosure provides an external unit of an air conditioner, which includes a refrigerant compressor, a condensation device, and a fan. The condensing device includes a heat exchange structure which is integrally extruded and formed. The heat exchange structure is formed with at least one medium circulation channel, and a plurality of fins are formed on the outer periphery of the medium circulation channel, and the fins are spaced from each other , Forming a gap for the airflow to pass through. The heat exchange structure included in the condensing device is integrally extruded to reduce the manufacturing difficulty. To a certain extent, the spacing between the fins can be designed to be smaller, so that the overall structure is more compact and the integration is higher, so that the condensing device can be Designed to be smaller, to reduce the volume of the condensation device, thereby reducing the volume of the external unit of the air-conditioning equipment, to meet people's miniaturization of products. And the heat exchange structure is formed with a medium circulation channel through which a medium (for example, a refrigerant) circulates, and heat dissipation fins are formed around the medium circulation channel, so that the airflow passing through the gap between the fins can contact the fins to exchange heat, thereby achieving cooling The purpose of the medium.

The present disclosure further provides an air-conditioning apparatus including the above-mentioned internal machine and external machine, and the internal machine and the external machine are connected through a connection pipe. Since the air conditioner uses the above-mentioned internal and external machines, the volume of the air conditioner is reduced.

It should be understood that the above general description and the following detailed description are only exemplary and do not limit the present disclosure.

BRIEF DESCRIPTION

The drawings herein are incorporated into and constitute a part of the specification, show embodiments consistent with the disclosure, and are used together with the specification to explain the principles of the disclosure.

FIG. 1 is a schematic perspective view of an air-conditioning apparatus in one embodiment.

FIG. 2 is a cross-sectional view of FIG. 1.

Fig. 3 is a cross-sectional view of an air-conditioning apparatus in one embodiment.

4 is a front view of the heat exchange structure in one embodiment.

FIG. 5 is a schematic cross-sectional view along A-A in FIG. 4.

Fig. 6 is a top view of Fig. 4.

7 is a bottom view of FIG. 4.

8 is a schematic cross-sectional view of a heat exchange device in another embodiment.

9 is a schematic cross-sectional view of a heat exchange device provided with a housing in another embodiment.

detailed description

In order to further illustrate the principle and structure of the present disclosure, preferred embodiments of the present disclosure will be described in detail with reference to the drawings.

In an embodiment, the present disclosure provides an air conditioner, which is an integrated machine. Compared with the structure in which the internal unit and the external unit of the traditional air conditioning device are independent of each other, in this embodiment, the internal unit and the external unit of the air conditioning device are integrated in the same device, that is, the evaporation device and the condensation device are integrated in the same device. The all-in-one machine can exhaust the hot air generated by the exhaust pipe through the exhaust pipe.

Specifically, referring to FIGS. 1 and 2, FIG. 1 is a schematic perspective view of an air conditioner in one embodiment, and FIG. 2 is a cross-sectional view of FIG. 1. The air conditioner 100 includes an evaporator 10, a condenser 20, and a refrigerant compressor 30. ,, Refrigerant filter 40 and throttle device 50. The refrigerant compressor 30, the condensing device 20, the refrigerant filter 40, and the throttle device 50 are sealed in a sealed box 101, and the evaporation device 10 is placed outside the sealed box 101. The closed box 101 is provided with an air inlet port 102 and an air outlet port 103. The air inlet port 102 is connected to the air inlet of the condensation device 20, and the air outlet port 103 is connected to the air outlet of the condensation device 20. An exhaust pipe is connected to the exhaust port 103, and the exhaust pipe is long enough to allow its port to extend to the outside, so as to exhaust the hot air after heat exchange with the condensation device 20. The closed box 101 is also provided with a control panel 105, and a control circuit electrically connected to the control panel 105 is also provided in the closed box 101.

The evaporating device 10 and the condensing device 20 are fixed upright on the same base 104, so that the evaporating device 10 and the condensing device 20 are integrated together to form an integrated machine.

Here, the seat body 104 and the closed box 101 may be integrally formed.

With reference to FIG. 3, FIG. 3 is a cross-sectional view of an air-conditioning apparatus in an embodiment. The evaporation device 10 is generally in the shape of a cylinder, and a fan 61 is provided at the top of the evaporation device. Airflow opening 10a. The fan 61 may be a suction fan or a blower. When the blower 61 is a blower, the blower 61 sucks the air in the atmosphere from the top of the evaporator 10 and sends it into the evaporator 10. After the heat exchange is completed, the temperature of the air decreases and the air is blown out from the airflow opening 10a into the room. When the fan 61 is a suction fan, the fan 61 draws air from the bottom end of the evaporator 10 through the airflow opening 10a. The drawn air is cooled in the evaporator 10, and the cooled air finally flows out into the room through the fan outlet at the top.

It can be understood that, in an embodiment, the fan 61 may also be disposed at the bottom end of the evaporation device 10, and in this case, an airflow opening for airflow in and out is provided at the top end.

At least one of the evaporation device 10 and the condensation device 20 includes the heat exchange structure of the present disclosure. The specific structure of the heat exchange structure will be described in detail below by taking the heat exchange structure included in the evaporation device as an example.

Specifically, in an embodiment, as shown in FIGS. 4 and 5, FIG. 4 is a front view of the heat exchange structure in an embodiment of the present disclosure, and FIG. 5 is a schematic cross-sectional view along A-A in FIG. 4. The heat exchange structure 1a includes a housing 11, a plurality of dielectric tubes 12 provided in the housing 11, and a plurality of fins 13. A medium circulation channel 121 is formed inside each medium tube 12.

The housing 11 includes an upper end opening and a lower end opening, and air flows in from the upper end opening, and the lower end opening flows out. According to the actual application, the airflow can also flow in from the lower opening of the casing 11 and flow out from the upper opening. The housing 11 has a circular tubular shape. In other embodiments, the housing 11 may also have a square tube shape or other shapes.

The housing 11 can be integrally extruded with the medium tube 12 and the fins 13. In addition, the housing 11 can also be formed separately from the media tube 12 and the fins 13, and the media tube 12 and the fins 13 are integrally extruded, that is, after the media tube 12 and the fins 13 are formed, the housing 11.

The housing 11, the medium tube 12, and the fins 13 can be integrally formed by metal extrusion. The metal may be aluminum alloy or other materials with good heat transfer. This forming method makes the distribution of the medium tube 12 and the fins 13 more uniform and compact. Compared with the welding forming method, the gap between the fins 13 can also be smaller, to a certain extent, the heat exchange is increased Area, which improves the heat exchange efficiency; and the integrated molding method increases the accuracy of device molding and reduces the difficulty of manufacturing. In this way, the heat exchange device can be designed to be smaller, to achieve the purpose of reducing the volume, to meet people ’s requirements for miniaturization demand. In addition, the integrated molding method can also improve production efficiency and reduce costs.

The heat exchange structure 1a includes a plurality of medium tubes 12 disposed in the housing 11. One of the plurality of dielectric tubes 12 is located at the geometric center of the heat exchange device, and the remaining dielectric tubes 12 are radially distributed around the geometric center. Fins 13 are connected between the dielectric tubes 12. Arranging the medium tube 12 in this way can improve the heat exchange efficiency between the medium in the medium tube 12 and the fins, and increase the range of temperature rise or temperature decrease of the airflow. Moreover, the provision of a plurality of medium tubes 12 increases the amount of medium entering the heat exchange device, which means that it can exchange heat with a larger amount of airflow, thereby improving efficiency and reducing time.

It should be noted that the geometric center of the heat exchange structure 1a can be determined according to its cross-sectional shape. For example, in FIGS. 4 and 5, the heat exchange device is generally cylindrical, and its cross-section is circular, and its geometric center is the The center of the circle. For another example, if the cross section of the heat exchange device is square or rectangular, the geometric center is the intersection of two diagonal lines. By analogy, no more examples will be given here.

Furthermore, as shown in FIG. 5, the plurality of dielectric tubes 12 are centered on the center of the cross-section of the cross section of the heat exchange structure 1a and are distributed on a plurality of circumferences with different radii at intervals. Specifically, centering on the media tube 12 in the center, the remaining media tubes 12 are arranged into a plurality of circles with different radii, and a plurality of media tubes 12 are arranged at equal intervals or unequal intervals on each circle. With this arrangement, the medium tubes 12 can be evenly distributed at various positions of the heat exchange structure 1a, so that the medium in the medium tubes 12 can uniformly exchange heat with the airflow, and the temperature of the airflow after heat exchange is uniform.

Each medium tube 12 forms a medium circulation channel 121. Due to the layout of the medium tubes 12, the medium circulation channels 121 can be divided into multiple groups. Each group of medium circulation channels 121 is distributed in a circumferential interval centered on the center of the center of the heat exchange structure 1a, and different groups of medium circulation channels 121 are distributed in On different radii.

Each medium circulation channel 121 extends in the height direction of the housing 11 and penetrates from the upper end of the housing 11 to the lower end of the housing 11. This increases the heat exchange efficiency per unit area.

The fins 13 extend in the height direction of the dielectric tube 12 and extend from the upper end to the lower end of the dielectric tube 12, so that the heat dissipation area can be increased and the heat transfer efficiency can be further improved. The fin 13 is connected to the outer wall of each medium tube 12. Specifically, the fins 12 are connected to the dielectric tube 12 located at the geometric center and extend in the radial direction, that is, the fin 12 can extend from the dielectric tube 12 located at the geometric center to the housing 11.

Specifically, a plurality of fins 13 are provided between the medium circulation channels 121 and between the housing 11 and the medium circulation channels 121. Between the fins 13 there is formed a gap 131 through which air flows. The fins 13 are distributed radially with the center line of the housing 11 as the center (or with the dielectric tube 12 located in the geometry), and are evenly arranged on the outer circumference of each medium circulation channel 121. Such a distribution method of the fins 13 increases the number of fins 13 arranged per unit area and increases the integration degree of the fins 13 per unit area, thereby improving the heat transfer efficiency per unit area. As a result, the evaporation device and / or the condensation device can be designed to be smaller, greatly reducing the volume of the air conditioning equipment.

Each medium circulation channel 121 may be connected in series or parallel through a connecting pipe. In an embodiment, as shown in FIG. 4, a connection pipe 141 is provided at the lower end of the casing 11, and the connection pipe 141 can communicate in parallel at the lower end of the casing 11 with a plurality of medium circulation channels 121 along the radial direction of the casing 11. 6 and 7, FIG. 6 is a top view of FIG. 4, and FIG. 7 is a bottom view of FIG. 4. A cooling medium inlet 151 is provided at the lower end of the casing 11, and the cooling medium inlet 151 communicates with the connecting pipe 141 at the lower end of the casing 11, and the cooling medium flows into the medium circulation channel 121 connected to the connecting pipe 141 through the cooling medium inlet 151 and the connecting pipe 141 . The medium circulation channel 121 that is not in communication with the connection pipe 141 can communicate with the medium circulation channel 121 through which the cold medium passes through another connection pipe 142, and finally, the cold medium flows through each medium circulation channel 121. The lower end of the housing 11 is provided with a cold medium outlet 152 through which the cold medium in the medium circulation passage 121 flows out.

In an embodiment, the heat exchange structure 1a may be provided with a cold medium inlet and a cold medium outlet, and each medium circulation channel 121 in the housing 11 is sequentially connected in series through a connecting pipe.

In an embodiment, each medium circulation channel 121 may be connected in parallel. Specifically, the upper end and the lower end of the outer shell of the heat exchange structure 1a are provided with an inlet manifold and an outlet manifold, respectively. The upper port of each medium circulation channel 121 communicates with the inlet manifold, the lower port of each medium circulation channel 121 communicates with the outlet manifold, the cold medium flows from the inlet manifold into each medium circulation channel 121, and converges after passing through each medium circulation channel 121 In the outlet manifold, it finally flows out of the outlet manifold.

The location and number of cold medium outlet and cold medium inlet can be changed according to the actual application. The communication between the medium circulation channels may be serial communication, parallel communication, or partial serial communication and partial parallel communication.

In addition, the number of medium circulation channels can be determined according to actual applications. Preferably, the number of medium circulation channels is more than two, which has better cooling effect.

In another embodiment, as shown in FIG. 8, FIG. 8 is a schematic cross-sectional view of the heat exchange device in another embodiment. The heat exchange structure 1b is integrally extruded, and the heat exchange structure 1b is formed with at least one medium circulation channel 161, and a plurality of fins 17 are formed on the outer periphery of the medium circulation channel 161, and the fins 17 are spaced from each other to form an air flow Passed gap 18.

The heat exchange structure 1b has a cylindrical shape as a whole and a circular cross section.

As shown in FIG. 8, the heat exchange structure 1 b includes a plurality of medium circulation channels 161, a part of the medium circulation channels 161 is formed by the medium tube 16, and another part of the medium circulation channels 161 is formed by the fins 17.

The heat exchange structure 1b includes a medium tube 16 located at the geometric center of the heat exchange structure 1b. It can be understood that the heat exchange structure 1b may include a plurality of medium tubes 16, one of which is located at the geometric center of the heat exchange structure 1b. The other part of the medium circulation channel 161 formed by the fins 17 is circumferentially distributed around the medium tube 16 located at the geometric center.

A plurality of fins 17 are arranged on the outer peripheral wall of the medium tube 16 at intervals. The fins 17 extend in the height direction of the medium tube 16 and extend in the radial direction from the medium tube 16 located at the geometric center.

The fins 17 are in the shape of forks or pliers. The fork-shaped fin 171 includes a rod portion 1711 and a bifurcated portion 1712. The rod portion 1711 is connected to the geometric tube 16 at the geometric center, and the bifurcated portion 1711 is connected to the rod portion 1712. The pliers-shaped fins 172 include two oppositely-shaped shaped fins 171, 172, the ends of the shaped fins 171, 172 away from the geometric center are curved, and the two shaped fins 171, 172 are curved成 above medium circulation channel 161. The medium circulation channel 161 extends from the upper end of the fin 17 to the lower end of the fin 17, that is, the medium circulation channel 161 surrounded by the fin 17 and the medium circulation channel 161 formed by the medium tube 16 have the same height. Here, by providing the fins 17 in the shape of forks or pliers, the heat exchange area can be increased and the heat exchange efficiency can be improved.

As shown in FIG. 8, the pliers-shaped fins 172 include four, which are located directly above, directly below, to the left, and to the right of the center of the circular cross-section. However, it is not limited to this, and the number and installation positions of the pliers-shaped fins 172 can be changed.

As mentioned above, the pincer-shaped fins 172 can form a medium circulation channel 161 for the medium to pass through. In addition, the pincer-shaped fins 172 can form a medium circulation channel 161 and can also be used to insert a support rod to enable the heat exchange device to support On the ground or other equipment, for example, in FIG. 8, the media circulation channels 161 located on the left and right are used to circulate the media, and the two media circulation channels 161 located directly above and below are inserted into the support rod to support effect. In this way, the medium circulation channel 161 has two purposes, and can be used to insert a support rod when it is not used to circulate the medium.

Continuing to refer to FIG. 8, the inner wall of the medium tube 16 protrudes inwardly to form a plurality of protrusions 162, and the plurality of protrusions 162 are distributed circumferentially along the inner wall of the medium tube 16. In this way, the heat exchange area of the medium tube 16 can be increased, and the heat exchange efficiency can be improved.

Further, as shown in FIG. 9, FIG. 9 is a schematic cross-sectional view of a heat exchange device provided with a casing in another embodiment. The heat exchange structure 1 b further includes a casing 19 covering the dielectric tube 16 and the fin 17. The housing 19 may be integrally extruded with the media tube 16 and the fins 17, or the media tube 16 and the fins 17 are extruded, and the housing 19 is formed separately from the media tube 16 and the fins 17.

The casing 19, the dielectric tube 16 and the fins 17 are made of aluminum alloy. The aluminum alloy material has good thermal conductivity, so that the heat exchange efficiency of the heat exchange structure 1b can be improved.

Both the condensing device 20 and the evaporating device 10 can adopt the heat exchange structure of any of the above-mentioned embodiments or a structure equivalent to the heat exchange structure. The refrigerant medium flowing in the medium circulation passage 121 is a refrigerant, and may be a refrigerant such as tetrafluoroethane or freon. When the condensing device 20 adopts the heat exchange structure 1a (or 1b) described above, high-temperature and high-pressure refrigerant flows into the medium circulation channel 121, and a fan 61 is provided at the end of the condensing device 20. The sheet 13 is purged to remove heat, so that the temperature of the refrigerant in the medium circulation channel 121 is lowered, and the purpose of cooling the refrigerant is achieved. When the evaporator 10 adopts the heat exchange structure 1a (or 1b) described above, the cooled refrigerant is passed into the medium circulation passage 121, and the air to be cooled is passed into the casing 11 to exchange heat with the refrigerant in the medium circulation passage 121. It absorbs heat and the air temperature drops to achieve the purpose of cooling the air.

Both the evaporation device 10 and the condensation device 20 adopt the above heat exchange structure, so that the evaporation device 10 and the condensation device 20 can be designed to be smaller, thus greatly reducing the volume of the air conditioning equipment.

In the above embodiment, both the evaporating device 10 and the condensing device 20 adopt the above heat exchange structure to achieve heat exchange, but it is not limited thereto, and one of the evaporating device 10 and the condensing device 20 may adopt the above heat exchange structure. That is to say, another device that does not use the above heat exchange structure can use a traditional heat exchange structure to achieve heat exchange.

The evaporation device 10 is used to cool indoor air. As mentioned above, under the action of the fan 61, outside wind enters the evaporation device 10, and passes through the gap 131 between the fins 13 from the upper end of the casing 11 to the lower end of the casing 11 (or from the lower end of the casing 11 to The upper end of the casing 11) contacts the outer wall of the medium circulation passage 121 to perform heat exchange. The refrigerant in the medium circulation passage 121 absorbs heat and vaporizes, and the temperature of the air after the heat absorption decreases and flows out of the casing 11.

The refrigerant connection pipe 10b at the inlet end of the evaporator 10 is connected to the refrigerant pipe of the throttle device 50, and the refrigerant connection pipe 10c at the outlet end of the evaporator 10 is connected to the refrigerant pipe of the refrigerant compressor 30 to input the vaporized refrigerant to the refrigerant compressor Compressed in 30. The refrigerant compressor 30 compresses the refrigerant vaporized by the evaporation device 10 into a high-temperature and high-pressure liquid refrigerant, and sends it to the condensing device 20 for cooling.

The condensing device 20 is used to cool the high-temperature and high-pressure liquid refrigerant output by the refrigerant compressor 30 into a medium-temperature and high-pressure refrigerant. The refrigerant connection pipe 20 a at the inlet end of the condensation device 20 is connected to the refrigerant pipe of the refrigerant compressor 30. The refrigerant connection pipe 20 b at the outlet end of the condensation device 20 is connected to the refrigerant pipe of the refrigerant filter 40. The refrigerant filter 40 is used to filter impurities in the medium-temperature high-pressure liquid refrigerant output from the condensation device 20. The refrigerant tube at the output end of the refrigerant filter 40 is connected to the refrigerant tube of the throttle device 50. The throttle device 50 reduces the medium-temperature high-pressure liquid refrigerant filtered by the refrigerant filter 40 to a low-temperature low-pressure liquid refrigerant, and sends it to the evaporation device 10. The throttle device 50 may be an expansion valve or a capillary tube.

The fan 61 at the end of the condensing device 20 may be a blower. The blower draws air from the end of the condenser device 20 into the atmosphere and sends it to the inside of the condenser device 20 for heat exchange. The absorbed air is sent to the exhaust port 103 through the ventilation pipe 21 at the bottom of the condenser device 20. The exhaust pipe at the exhaust port 103 is discharged outside.

In one embodiment, in order to accelerate the circulation of internal and external air and improve the heat exchange efficiency, a plurality of ventilation holes may also be provided on the outer shell of the heat exchange structure of the condensation device 20 (that is, the outer shell 11 (or outer shell 19)). In addition, the condensing device 20 also includes an outer shell that is sleeved on the outer periphery of the outer shell, and the fan is installed at the end of the outer shell. A plurality of ventilation holes are provided on the shell wall of the outer shell for communicating the airflow inside and outside the shell.

In the above embodiment, the air-conditioning equipment is an integrated machine, that is, an evaporating device for cooling air and a condensing device for cooling refrigerant are integrated together. However, it is not limited to this. In an embodiment, the air conditioning apparatus provided by the present disclosure may further design the evaporation device and the condensation device as independent devices. Specifically, the air conditioner includes an internal unit and an external unit, and the internal unit and the external unit are connected by a connecting pipe, and the connecting pipe can be used to transport refrigerant. The internal unit can be placed indoors to output cold air. The external unit can be placed outdoors to cool the refrigerant and discharge hot air.

Specifically, the internal unit of the air-conditioning apparatus includes an evaporating device and a fan provided at the end of the evaporating device. The evaporating device is used to evaporate the vaporized refrigerant to output cold air. The evaporation device can be fixed on a base, and the base can be directly placed on the ground or hung on the wall. The internal unit of the air conditioner may be cylindrical.

The structure of the evaporation device is the same as the structure of the evaporation device 10 of the above embodiment, that is, the heat exchange structure 1a (or the heat exchange structure 1b) of the above embodiment is used. The evaporation device includes a heat exchange structure, which is integrally extruded and formed. The heat exchange structure is formed with at least one medium circulation channel, and a plurality of fins are formed on the outer periphery of the medium circulation channel, and the fins are spaced from each other to form Gap for airflow. For the heat exchange structure included in the evaporation device, please refer to the foregoing description of the heat exchange structure, which will not be detailed here.

The external unit of the air-conditioning equipment includes a refrigerant compressor, a condensation device, a refrigerant filter, a throttle device, and a fan. The refrigerant compressor, condensing device, refrigerant filter and throttle device are placed in a closed box. The closed box body is provided with an air inlet interface and an air outlet interface.

The refrigerant compressor is used to compress the refrigerant vaporized by the evaporating device in the air conditioner into a high-temperature high-pressure liquid refrigerant. The condensing device is used to cool the high-temperature and high-pressure liquid refrigerant output by the refrigerant compressor into a medium-temperature and high-pressure refrigerant. The refrigerant filter is used to filter impurities in the medium temperature and high pressure liquid refrigerant output by the condensation device. The throttling device is used to reduce the pressure of the medium-temperature and high-pressure liquid refrigerant filtered by the refrigerant filter to a low-temperature and low-pressure liquid refrigerant, and deliver the depressurized low-temperature and low-pressure liquid refrigerant to the internal unit of the air-conditioning equipment.

The fan is installed at the end of the condensing device. Under the action of the fan, the external wind enters the casing from the gap between the fins, and exchanges heat with the refrigerant in the medium circulation channel in the casing, the temperature of the refrigerant decreases, and the external wind The temperature rises and becomes hot air, and the hot air is discharged through the exhaust port.

The structure of the condensing device may be the same as the structure of the condensing device 20 in the above embodiment, that is, the heat exchange structure 1a (or the heat exchange structure 1b) of the above embodiment is used. The condensing device is cylindrical. The condensing device includes a heat exchange structure, which is integrally extruded, the heat exchange structure is formed with at least one medium circulation channel, and a plurality of fins are formed on the outer periphery of the medium circulation channel, and the fins are spaced apart Gap for airflow. For the heat exchange structure included in the condensing device, please refer to the foregoing description of the heat exchange structure, which will not be detailed here.

In order to accelerate the circulation of air inside and outside the casing, a plurality of ventilation holes may be provided on the casing of the heat exchange structure of the condensation device (that is, casing 11 (or casing 19)). In addition, the condensing device further includes an outer shell sleeved on the outer periphery of the outer shell, the fan is installed at the end of the outer shell, and a plurality of ventilation holes are provided on the shell wall of the outer shell.

In one embodiment, the above air-conditioning equipment can also be used for heating. In this case, the heated medium is passed into the evaporation device, and the cooled medium is fed into the condensation device.

The above are only preferred and feasible embodiments of the present disclosure, and do not limit the scope of protection of the present disclosure. Any equivalent structural changes made by using the contents of the specification and drawings of the present disclosure are included in the scope of protection of the present disclosure.

Claims

An air conditioning device, characterized in that the air conditioning device is an integrated machine, and the air conditioning device includes:

Evaporation device, used to evaporate vaporized refrigerant to output cold air;

A refrigerant compressor, used to compress the gasified refrigerant of the evaporation device into a liquid refrigerant of high temperature and high pressure;

A condensing device for cooling the high-temperature and high-pressure liquid refrigerant output by the refrigerant compressor into a medium-temperature and high-pressure refrigerant;

At least one of the evaporating device and the condensing device includes a heat exchange structure, the heat exchange structure is integrally extruded, and the heat exchange structure is formed with at least one medium circulation channel. A plurality of fins are formed on the periphery, and the fins are spaced from each other to form a gap through which air flows.
The air-conditioning apparatus according to claim 1, wherein the heat exchange structure includes a plurality of medium tubes, the medium circulation channels are formed inside the medium tubes, and the fins are along the height direction of the medium tubes Extending, the fins are connected to the outer wall of each of the medium tubes.
The air-conditioning apparatus according to claim 2, wherein one of the medium tubes is located at the geometric center of the heat exchange structure, the remaining medium tubes are circumferentially distributed around the medium tube, and the fins are located in the medium tube The outer periphery of the tube extends in the radial direction of the dielectric tube at the geometric center.
The air-conditioning apparatus according to claim 3, wherein the cross section of the heat exchange structure is circular;

A plurality of the medium tubes are centered on the center of the cross-section, and are distributed on a plurality of circles with different radii at intervals.
The air-conditioning apparatus according to claim 1, wherein the heat exchange structure includes at least two medium circulation channels, the heat exchange structure includes at least one medium tube, and a portion of the medium circulation channel is formed by the medium tubes, Another part of the medium circulation channel is formed by the fins, and the fins extend in the height direction of the medium tube.
The air-conditioning apparatus according to claim 5, wherein a medium tube is located at the geometric center of the heat exchange structure, and the medium circulation channel formed by the fins is circumferentially distributed around the medium tube located at the geometric center;

The fins extend in a radial direction from the dielectric tube at the geometric center.
The air-conditioning apparatus according to claim 6, wherein a copper pipe is inserted into the medium circulation channel formed by the fins.
The air-conditioning apparatus according to claim 5, wherein the fins are in the shape of forks or pliers;

The fork-shaped fin includes a rod portion and a bifurcated portion, the rod portion is connected to the dielectric tube at the geometric center, and the bifurcated portion is connected to the rod portion;

The pliers-shaped fins include two opposite-shaped profiled fins, the ends of the profiled fins away from the geometric center are curved, and the curved-shaped ends of the two profiled fins surround the medium Circulation channel.
The air-conditioning apparatus according to claim 2 or 5, wherein the heat exchange structure further includes a housing, and the medium tube and the fin are placed in the housing;

The housing is integrally extruded with the media tube and the fin, or the media tube and the fin are extruded, and the housing is formed separately from the media tube and the fin.
The air-conditioning apparatus according to claim 5, wherein a plurality of protrusions protruding inward are provided on the inner wall of the medium tube located at the geometric center of the heat exchange structure.
The air-conditioning apparatus according to claim 1, wherein a plurality of ventilation holes are provided on the shell of the heat exchange structure of the condensation device, and an outer shell is provided on the outer periphery of the shell, and the outer shell There are multiple vents on the body;

A fan for accelerating the flow of airflow is provided at the end of the outer shell, and the external wind entering under the action of the fan flows to the atmosphere through the ventilation holes after heat exchange.
The air-conditioning apparatus according to claim 1, wherein the air-conditioning apparatus further includes a refrigerant filter and a throttling device, the refrigerant filter is used to filter impurities in the medium-temperature high-pressure liquid refrigerant output by the condensation device, so The throttling device is used to reduce the pressure of the medium-temperature and high-pressure liquid refrigerant filtered by the refrigerant filter to a low-temperature and low-pressure liquid refrigerant, and deliver the reduced-pressure low-temperature and low-pressure liquid refrigerant to the evaporation device;

The refrigerant compressor, the condensing device, the refrigerant filter and the throttling device are placed in a sealed box, and the evaporation device is located outside the sealed box;

The airtight interface is provided with an air inlet interface and an air outlet interface, an air exhaust pipe is connected to the air outlet interface, the air inlet interface communicates with the air inlet of the condensation device, and the air outlet interface is The exhaust port of the condensation device is in communication.
The air-conditioning apparatus according to claim 12, wherein the condensation device and the evaporation device both include the heat exchange structure, and the condensation device and the evaporation device are both cylindrical;

The condensing device and the evaporating device are fixed upright on the same base.
The air-conditioning apparatus according to claim 13, wherein an end of the evaporating device is provided with a fan, and the other end of the evaporating device is provided with an airflow opening for airflow in and out.
An internal unit of an air-conditioning apparatus, characterized in that it includes an evaporating device and a fan provided at the end of the evaporating device. The evaporating device is used to evaporate vaporized refrigerant to output cold air. The evaporating device includes a Heat structure, the heat exchange structure is integrally extruded, the heat exchange structure is formed with at least one medium circulation channel, and a plurality of fins are formed on the outer periphery of the medium circulation channel, and the fins are spaced apart from each other, Form a gap through which air flows.
The internal unit of the air-conditioning apparatus according to claim 15, wherein the heat exchange structure includes a plurality of medium tubes, the medium circulation channels are formed inside the medium tubes, and the fins are along the medium tubes Extending in the height direction, the fins are connected to the outer wall of each of the dielectric tubes;

One of the medium tubes is located at the geometric center of the heat exchange structure, the remaining medium tubes are distributed circumferentially around the medium tube, and the fins extend in the radial direction of the medium tube at the geometric center on the outer circumference of the medium tube .
The internal unit of an air-conditioning apparatus according to claim 15, wherein the heat exchange structure includes at least two medium circulation channels, the heat exchange structure includes at least one medium pipe, and a portion of the medium circulation channel is formed by the medium A tube is formed, and another part of the medium circulation channel is formed by the fins, and the fins extend along the height direction of the medium tube;

One of the medium tubes is located at the geometric center of the heat exchange structure, and the medium circulation channels formed by the fins are circumferentially distributed around the medium tube at the geometric center;

The fins extend in a radial direction from the dielectric tube located at the geometric center;

A plurality of protrusions protruding inward are provided on the inner wall of the medium tube located at the geometric center of the heat exchange structure.
The internal unit of the air-conditioning apparatus according to claim 16 or 17, wherein the heat exchange structure further includes an outer shell, and the medium tube and the fin are placed in the outer shell;

The housing is integrally extruded with the media tube and the fin, or the media tube and the fin are extruded, and the housing is formed separately from the media tube and the fin.
An external unit of air-conditioning equipment, characterized in that it includes:

Refrigerant compressor, used to compress the refrigerant vaporized by the evaporating device in the air-conditioning equipment into a high-temperature and high-pressure liquid refrigerant;

Condensing device, used to cool the high-temperature and high-pressure liquid refrigerant output by the refrigerant compressor into medium-temperature and high-pressure refrigerant;

The fan is provided at the end of the condensation device;

The condensation device includes a heat exchange structure, which is integrally extruded and formed. The heat exchange structure is formed with at least one medium circulation channel, and a plurality of fins are formed on the outer periphery of the medium circulation channel. The fins are spaced apart from each other, forming a gap through which air flows.
The external unit of the air-conditioning apparatus according to claim 19, wherein the heat exchange structure includes a plurality of medium tubes, the medium circulation channels are formed inside the medium tubes, and the fins are along the medium tubes Extending in the height direction, the fins are connected to the outer wall of each of the dielectric tubes;

One of the medium tubes is located at the geometric center of the heat exchange structure, the remaining medium tubes are distributed circumferentially around the medium tube, and the fins extend in the radial direction of the medium tube at the geometric center on the outer circumference of the medium tube .
The external unit of an air-conditioning apparatus according to claim 19, wherein the heat exchange structure includes at least two medium circulation channels, the heat exchange structure includes at least one medium pipe, and a portion of the medium circulation channel is formed by the medium A tube is formed, and another part of the medium circulation channel is formed by the fins, and the fins extend along the height direction of the medium tube;

One of the medium tubes is located at the geometric center of the heat exchange structure, and the medium circulation channels formed by the fins are circumferentially distributed around the medium tube at the geometric center;

The fins extend in a radial direction from the dielectric tube located at the geometric center;

A plurality of protrusions protruding inward are provided on the inner wall of the medium tube located at the geometric center of the heat exchange structure.
The external unit of an air-conditioning apparatus according to claim 20 or 21, wherein the heat exchange structure further includes a housing, and the medium tube and the fin are placed in the housing;

The housing is integrally extruded with the media tube and the fin, or the media tube and the fin are extruded, and the housing is formed separately from the media tube and the fin.
The external unit of an air-conditioning apparatus according to claim 19, wherein the external unit of the air-conditioning apparatus further includes a refrigerant filter and a throttling device, the refrigerant filter is used to filter the intermediate temperature and high pressure liquid output by the condensation device For impurities in the refrigerant, the throttling device is used to reduce the medium-temperature and high-pressure liquid refrigerant filtered by the refrigerant filter to a low-temperature and low-pressure liquid refrigerant, and deliver the depressurized low-temperature and low-pressure liquid refrigerant to the internal unit of the air-conditioning equipment ;

The refrigerant compressor, the condensation device, the refrigerant filter and the throttling device are placed in a closed box;

An air inlet port and an air outlet port are provided on the upper side of the closed box, and the hot air that enters the condensing device from the air inlet port for heat exchange is discharged through the air outlet port.
An air-conditioning apparatus, characterized by comprising the internal machine according to any one of claims 15-18 and the external machine according to any one of claims 19-23, the internal machine and the external machine passing Connection pipe connection.