CN214009394U - Air conditioner outdoor unit and air conditioner - Google Patents

Abstract

The utility model provides an air condensing units and air conditioner, wherein, air condensing units includes: the first heat exchanger is at least provided with one bend; the second heat exchanger is arranged at intervals with the first heat exchanger; and the outdoor fan is arranged between the first heat exchanger and the second heat exchanger and is configured to be used for driving airflow to pass through the first heat exchanger and the second heat exchanger in sequence. The utility model discloses combine outdoor fan to induced draft and the characteristics of blowing, first heat exchanger and the second heat exchanger that the design cooperation was used to first heat exchanger has a department at least and buckles, can promote the heat exchange efficiency of first heat exchanger and second heat exchanger in very big degree, and then promotes the holistic heat exchange efficiency of air condensing units and heat transfer ability.

Description

Air conditioner outdoor unit and air conditioner

Technical Field

The utility model relates to an air conditioning technology field particularly, relates to an air condensing units and air conditioner.

Background

In the technical field of air conditioners, due to the limitation of volume and the requirement of energy efficiency, components such as a heat exchanger, an outdoor fan, a compressor and the like in an air conditioner outdoor unit are compactly arranged. The fan drives the air current through the mode that induced drafts and passes through the heat exchanger heat transfer earlier, and the fan blade blows off again, and the heat exchange efficiency of this kind of heat exchanger and the mode of arranging of fan is lower.

In the related art, two straight-line heat exchangers are arranged at two ends of a fan, but the fan supplies air from all directions and blows air directionally, so that the windward area of air suction is different from the windward area of air blowing. The condition that the sizes of the upstream and downstream heat exchangers are matched with the windward area is not considered in the related technology, so that the air flow of the air suction side and the air blowing side of the fan in the related technology is not well utilized, and the heat exchange efficiency is not high.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least.

Therefore, the utility model discloses the first aspect provides an air condensing units.

The utility model discloses the second aspect provides an air conditioner.

The utility model discloses the first aspect provides an air condensing units, include: the first heat exchanger is at least provided with one bend; the second heat exchanger is arranged at intervals with the first heat exchanger; and the outdoor fan is arranged between the first heat exchanger and the second heat exchanger and is configured to be used for driving airflow to pass through the first heat exchanger and the second heat exchanger in sequence.

The utility model provides an air condensing units, first heat exchanger, second heat exchanger and outdoor fan including the cooperation is used. The first heat exchanger and the second heat exchanger are arranged at intervals, and the outdoor fan is arranged between the first heat exchanger and the second heat exchanger. When the outdoor fan operates, the outdoor fan can drive airflow to sequentially pass through the first heat exchanger and the second heat exchanger, and then the first heat exchanger and the second heat exchanger are sequentially radiated. Therefore, the heat exchange capacity of the outdoor unit of the air conditioner can be effectively improved through the matching of the first heat exchanger and the second heat exchanger.

In addition, the outdoor fan may have a greater suction angle than a blowing angle during operation, that is, a greater suction area than a blowing area, and may blow air in a fixed direction. Therefore, the utility model discloses with the side of induced drafting of first heat exchanger setting at outdoor fan, with the side of blowing of second heat exchanger setting at outdoor fan to there is a buckle at least in first heat exchanger. Like this, the heat transfer area of first heat exchanger can be guaranteed to the design of at least one department of buckling for the induced draft of each angle all can contact with first heat exchanger when outdoor fan is moving, and then effectively utilized the characteristics that outdoor fan wide-angle induced drafts, in order to promote the heat exchange efficiency of first heat exchanger. Correspondingly, the second heat exchanger is arranged on the blowing side of the outdoor fan, the outdoor fan is guaranteed to directly supply air to the second heat exchanger, and air blown out by the outdoor fan can be fully utilized to dissipate heat of the second heat exchanger, so that the heat exchange efficiency of the second heat exchanger is improved.

And, because the angle of induced draft of outdoor fan is greater than the angle of blowing, the gaseous velocity of flow of the side of blowing of outdoor fan will be far more than the gaseous velocity of flow of the side of induced draft for the heat exchange efficiency of second heat exchanger is higher, can promote holistic heat exchange efficiency and the heat transfer ability of air condensing units to a great extent.

The utility model provides an air condensing units combines the characteristics that outdoor fan induced drafts and bloies, first heat exchanger and the second heat exchanger that the design cooperation was used to first heat exchanger has a department at least and buckles, can promote the heat exchange efficiency of first heat exchanger and second heat exchanger in very big degree, and then promotes air condensing units holistic heat exchange efficiency and heat transfer ability.

The utility model discloses a second aspect provides an air conditioner, include: an air-conditioning indoor unit; the utility model discloses outdoor unit of air conditioner of first aspect.

The utility model provides an air conditioner, include if the utility model discloses the outdoor unit of air conditioner of the first aspect. Therefore, all the advantages of the air conditioner outdoor unit are achieved, and are not discussed in detail herein.

In addition, the air conditioner also comprises an air conditioner indoor unit, and the air conditioner indoor unit is connected with the air conditioner outdoor unit through a heat exchange pipeline.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

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

fig. 2 is a schematic structural diagram of an air conditioner according to an embodiment of the present invention (a first heat exchanger is connected in series with a second heat exchanger);

fig. 3 is a schematic view showing the construction of an air conditioner outdoor unit in the air conditioner of the embodiment shown in fig. 2;

fig. 4 is a schematic structural diagram of an air conditioner according to another embodiment of the present invention (a first heat exchanger is connected in parallel with a second heat exchanger);

fig. 5 is a schematic view of an air conditioner outdoor unit in the air conditioner according to the embodiment shown in fig. 4.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 5 is:

100 outdoor air-conditioning units, 102 first heat exchangers, 104 second heat exchangers, 106 outdoor fans, 108 first heat exchange units, 110 second heat exchange units, 112 bent parts, 114 compressors, 116 partition plates, 118 air supplement ports, 120 motors, 122 fans, 124 heat exchange chambers, 126 installation chambers, 128 machine cases, 200 indoor air-conditioning units, 202 indoor heat exchangers, 204 indoor fans, 302 four-way valves, 304 first throttle valves, 306 first check valves, 308 second throttle valves and 310 second check valves.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

An outdoor unit 100 of an air conditioner and an air conditioner according to some embodiments of the present invention will be described with reference to fig. 1 to 5.

As shown in fig. 1, the present invention provides, in a first aspect, an outdoor unit 100 of an air conditioner, including: the first heat exchanger 102, the first heat exchanger 102 has at least one bend; a second heat exchanger 104 spaced apart from the first heat exchanger 102; and an outdoor fan 106 disposed between the first heat exchanger 102 and the second heat exchanger 104 and configured to drive an air flow to pass through the first heat exchanger 102 and the second heat exchanger 104 in sequence.

The utility model provides an air condensing units 100, including the first heat exchanger 102, second heat exchanger 104 and the outdoor fan 106 that cooperate and use. The first heat exchanger 102 and the second heat exchanger 104 are arranged at intervals, and the outdoor fan 106 is arranged between the first heat exchanger 102 and the second heat exchanger 104. When the outdoor fan 106 is operating, the outdoor fan 106 may drive the airflow to pass through the first heat exchanger 102 and the second heat exchanger 104, and then dissipate heat in the first heat exchanger 102 and the second heat exchanger 104. In this way, the heat exchange capacity of the outdoor unit 100 can be effectively improved by the cooperation of the first heat exchanger 102 and the second heat exchanger 104.

In addition, as shown in fig. 1, the outdoor fan 106 may be operated at a larger suction angle than a blowing angle, that is, the outdoor fan 106 may have a larger suction area than a blowing area and may blow air in a fixed direction. Therefore, in the present embodiment, the first heat exchanger 102 is disposed on the air suction side of the outdoor fan 106, the second heat exchanger 104 is disposed on the air blowing side of the outdoor fan 106, and at least one bend is formed in the first heat exchanger 102.

Like this, the heat transfer area of first heat exchanger 102 can be guaranteed to the design of at least one department's kink for the induced draft of each angle all can contact with first heat exchanger 102 when outdoor fan 106 is moving, and then effectively utilized the characteristics that outdoor fan 106 wide-angle induced drafts, in order to promote first heat exchanger 102's heat exchange efficiency. Correspondingly, the second heat exchanger 104 is arranged on the blowing side of the outdoor fan 106, and the outdoor fan 106 is ensured to directly supply air to the second heat exchanger 104, so that the air blown out by the outdoor fan 106 can be fully utilized to realize the heat dissipation of the second heat exchanger 104, and the heat exchange efficiency of the second heat exchanger 104 is improved.

In addition, as shown in fig. 1, since the suction angle of the outdoor fan 106 is greater than the blowing angle, the flow rate of the air on the blowing side of the outdoor fan 106 is much greater than that of the air on the suction side, so that the heat exchange efficiency of the second heat exchanger 104 is high, and the heat exchange efficiency and the heat exchange capacity of the entire outdoor unit 100 of the air conditioner can be greatly improved.

The air conditioner outdoor unit 100 provided by this embodiment is designed and matched with the first heat exchanger 102 and the second heat exchanger 104 by combining the characteristics of air suction and air blowing of the outdoor fan 106, and the first heat exchanger 102 is at least provided with one bent portion, so that the heat exchange efficiency of the first heat exchanger 102 and the heat exchange efficiency of the second heat exchanger 104 can be greatly improved, and further the overall heat exchange efficiency and heat exchange capacity of the air conditioner outdoor unit 100 are improved.

In an embodiment of the present invention, as shown in fig. 1, the first heat exchanger 102 includes: the first heat exchanging part 108, the first heat exchanging part 108 and the second heat exchanger 104 are located at two opposite sides of the air supply direction of the outdoor fan 106; a second heat exchanging part 110 located at a side of the air blowing direction of the outdoor fan 106; the bent portion 112 is connected to the first heat exchanging portion 108 and the second heat exchanging portion 110.

In this embodiment, the first heat exchanger 102 includes a first heat exchanging portion 108, a second heat exchanging portion 110, and a bent portion 112, which are connected, and the first heat exchanger is L-shaped as a whole. The bent portion 112 is connected to the first heat exchanging portion 108 and the second heat exchanging portion 110, so that the first heat exchanging portion 108 and the second heat exchanging portion 110 are arranged in an intersecting manner. In addition, the first heat exchanging portion 108 and the second heat exchanger 104 are located at two opposite sides of the air blowing direction of the outdoor fan 106, and after the second heat exchanging portion 110 is connected to the first heat exchanging portion 108 by the bent portion 112, the second heat exchanging portion 110 is located at a side of the air blowing direction of the outdoor fan 106. In this way, the first heat exchanging portion 108 and the second heat exchanging portion 110 are located on two adjacent sides of the outdoor fan 106, and are located on the air suction side of the outdoor fan 106, and the second heat exchanger 104 is located on the air blowing side of the outdoor fan 106. On the basis of ensuring that the first heat exchanger 102 and the second heat exchanger 104 are correspondingly arranged on two opposite sides of the outdoor fan 106, the first heat exchanger 102 can exchange heat at least from two adjacent sides of the outdoor fan 106, so that the heat exchange area of the first heat exchanger 102 is effectively increased, and the heat exchange efficiency of the first heat exchanger 102 is improved.

When the outdoor fan 106 operates, because the outdoor fan 106 is induced from all directions, the outdoor fan 106 can simultaneously induce air from the positions of the first heat exchanging portion 108, the bent portion 112 and the second heat exchanging portion 110, and then simultaneously exchange heat with the first heat exchanging portion 108, the bent portion 112 and the second heat exchanging portion 110, thereby effectively improving the heat exchange area and the heat exchange efficiency of the first heat exchanger 102. Accordingly, since the fan 122 draws air towards the second heat exchanger 104, the air blowing area of the outdoor fan 106 is small, and the air blowing speed is high, so that the second heat exchanger 104 can exchange heat with the air flow driven by the outdoor fan 106 quickly, and the heat exchange area and the heat exchange efficiency of the second heat exchanger 104 are also improved.

In an embodiment of the present invention, as shown in fig. 1, the bending angle of the bending portion 112 is greater than or equal to 70 ° and less than or equal to 120 °.

In this embodiment, the bending angle of the bent portion 112 is α, and 70 ° ≦ α ≦ 120 ° is satisfied. The bending angle α of the bending portion 112 determines the relative position between the first heat exchanging portion 108 and the second heat exchanging portion 110, and further determines the included angle between the first heat exchanging portion 108 and the air suction direction of the outdoor fan 106 and the included angle between the second heat exchanging portion 110 and the air suction direction of the outdoor fan 106. Under the condition that the included angle between the first heat exchanging part 108 and the air suction direction of the outdoor fan 106 is close to 90 degrees, the air flow can be ensured to pass through the first heat exchanging part 108 smoothly, so that the heat exchange effect of the air flow and the first heat exchanging part 108 is improved; under the condition that the included angle between the second heat exchanging portion 110 and the air inlet direction of the outdoor fan 106 is close to 90 degrees, the air flow can be ensured to pass through the second heat exchanging portion 110 smoothly, so that the heat exchange effect between the air flow and the second heat exchanging portion 110 is improved.

As shown in fig. 1, the utility model discloses with the angle of bending alpha setting of kink 112 at 70 to 120, can guarantee the direction phase-match that induced drafts of first heat transfer portion 108 and outdoor fan 106, guarantee the direction phase-match that induced drafts of second heat transfer portion 110 and outdoor fan 106, realize more efficient heat transfer, also reduce the hindrance when the air current passes first heat transfer portion 108 and second heat transfer portion 110 simultaneously, when guaranteeing the high efficiency heat transfer, noise when reducing the gas flow.

Moreover, as shown in fig. 1, the utility model discloses set up the angle of bending alpha of kink 112 at 70 to 120 for the angle of bending alpha of kink 112 has certain regulating variable, in order to reduce the processing degree of difficulty, is favorable to the staff to make, can promote the yield of first heat exchanger 102 simultaneously.

Specifically, the bending angle α of the bending portion 112 is also an included angle formed between a plane where the first heat exchanging portion 108 is located and a plane where the second heat exchanger 104 is located.

In a specific embodiment, the bending angle α of the bending portion 112 may be 70 °, 75 °, 80 °, 85 °, 90 °, 95 °, 100 °, 105 °, 110 °, 115 °, 120 °, and the like.

In an embodiment of the present invention, as shown in fig. 1, in a connection direction of the first heat exchanging portion 108 and the bent portion 112, a length of the first heat exchanging portion 108 is greater than or equal to a length of the second heat exchanger 104.

In this embodiment, one end of the first heat exchanging portion 108 is connected to the bent portion 112, and the other end of the first heat exchanging portion 108 serves as a free end and extends toward the bent portion 112. In a connection direction of the first heat exchanging portion 108 and the bent portion 112, a length of the first heat exchanging portion 108 is greater than or equal to a length of the second heat exchanger 104. It is noted that the outdoor fan 106 may draw air from all directions and blow air in a fixed direction, which makes the suction angle of the outdoor fan 106 larger than the blowing angle, so that the suction area of the outdoor fan 106 is larger than the blowing area of the outdoor fan 106.

Therefore, the utility model relates to a first heat transfer portion 108 is longer for the size of first heat transfer portion 108 and the area of induced drafting and the angle phase-match that induced drafts, with the large tracts of land heat transfer that realizes first heat transfer portion 108. The utility model relates to a second heat exchanger 104 is longer for the size of second heat exchanger 104 with blow the area and blow the angle phase-match, with realize the quick heat transfer of second heat exchanger 104 subregion.

In an embodiment of the present invention, the first heat exchanger 102 includes a plurality of first fins, and two adjacent first fins are spaced apart from each other.

In this embodiment, the first heat exchanger 102 includes a plurality of first fins, and the plurality of first fins are provided at intervals. When the airflow passes through the gap between two adjacent first fins in the first heat exchanger 102, the airflow can take away the heat of the first fins and exchange heat with the medium in the first fins.

In an embodiment of the present invention, the second heat exchanger 104 includes a plurality of second fins, and two adjacent second fins are spaced apart from each other.

In this embodiment, the second heat exchanger 104 includes a plurality of second fins, and the plurality of second fins are provided at intervals. When the airflow passes through the gap between two adjacent second fins in the second heat exchanger 104, the airflow can take away the heat of the second fins and exchange heat with the medium in the second fins.

In an embodiment of the present invention, the distance between two adjacent second fins is greater than or equal to the distance between two adjacent first fins.

In this embodiment, the suction of the outdoor fan 106 is performed in all directions, and the blowing of the outdoor fan 106 is performed in a fixed direction. Therefore, the outdoor fan 106 has a large suction angle and a low suction speed, and the outdoor fan 106 has a small blowing angle and a high blowing speed. Therefore, the utility model relates to a distance between two adjacent second fins will be more than or equal to the distance between two adjacent first fins, like this for gaseous velocity of flow and the interval phase-match between two adjacent fins.

Specifically, when the air flow with the low air suction side flow velocity passes through two adjacent first fins, the heat exchange with the first fins can be carried out in a large area. When the airflow with the high flow rate on the blowing side passes through the two adjacent second fins, the distance between the two adjacent second fins is large, so that the resistance of the airflow passing through the first fins is low, the power of the outdoor fan 106 cannot be obviously improved, and the effect of heat exchange of the second heat exchanger 104 through the high-speed airflow is also realized.

Moreover, since the distance between two adjacent second fins in the second heat exchanger 104 is relatively large, the number of fins and copper pipes in the second heat exchanger 104 can be reduced, and thus the cost of the second heat exchanger 104 is reduced, so as to reduce the cost of the outdoor unit 100 of the air conditioner.

In an embodiment of the present invention, the first heat exchanger 102 includes at least one row of the first fins in the air supply direction of the outdoor fan 106.

In this embodiment, the first heat exchanger 102 may include one or more rows of first fins in the blowing direction of the outdoor fan 106. When the first heat exchanger 102 includes multiple rows of first fins, the airflow may be caused to exchange heat sequentially through the multiple rows of first fins. Also, since the velocity of the gas flow when passing through the first heat exchanger 102 is not high, this causes no increase in resistance to the gas flow even if the first fins are provided in plural rows.

In an embodiment of the present invention, the second heat exchanger 104 includes at least one row of the second fins in the air supply direction of the outdoor fan 106.

In this embodiment, the second heat exchanger 104 may include one or more rows of second fins in the blowing direction of the outdoor fan 106. When the second heat exchanger 104 includes multiple rows of second fins, the airflow may be caused to exchange heat sequentially through the multiple rows of second fins. In particular, because of the high velocity of the airflow as it passes through the second heat exchanger 104, it is preferable to design a row of second fins to avoid the problem that the rows of second fins increase airflow resistance.

In an embodiment of the present invention, as shown in fig. 1, the outdoor unit 100 further includes a casing 128, and the casing 128 includes an air inlet and an air outlet connected to each other; the first heat exchanger 102, the second heat exchanger 104 and the outdoor fan 106 are disposed in the cabinet 128; the first heat exchanger 102 is located at the air inlet and the second heat exchanger 104 is located at the air outlet.

In this embodiment, the air conditioner further includes a cabinet 128, and the cabinet 128 is provided with an air inlet and an air outlet which are communicated with each other. The first heat exchanger 102, the outdoor fan 106 and the second heat exchanger 104 are sequentially arranged in the direction from the air inlet to the air outlet, so that the first heat exchanger 102 is located at the air inlet, and the second heat exchanger 104 is located at the air outlet. Thus, when the outdoor fan 106 is operated, the airflow entering the casing 128 from the air inlet first contacts the first heat exchanger 102 to exchange heat, and contacts the second heat exchanger 104 to exchange heat after passing through the outdoor fan 106, thereby improving the overall heat exchange efficiency of the outdoor unit 100.

In an embodiment of the present invention, as shown in fig. 1, the outdoor unit 100 further includes a compressor 114, and the compressor 114 is disposed in the casing 128; the first heat exchanger 102 and the second heat exchanger 104 are connected in series or in parallel with the compressor 114.

In this embodiment, the outdoor unit 100 further includes a compressor 114. Wherein the compressor 114 is disposed in the cabinet 128 and connected to the first heat exchanger 102 and the second heat exchanger 104 through heat exchange lines.

Specifically, as shown in fig. 3, the first heat exchanger 102 and the second heat exchanger 104 may be connected in series with the compressor 114, such that the medium in the heat exchange pipeline passes through the first heat exchanger 102 and the second heat exchanger 104 in sequence; as shown in fig. 5, the first heat exchanger 102 and the second heat exchanger 104 may be connected in parallel with the compressor 114 such that the medium in the heat exchange line passes through both the first heat exchanger 102 and the second heat exchanger 104.

In one embodiment of the present invention, as shown in fig. 1, the compressor 114 and the second heat exchanging part 110 are located at two opposite sides of the outdoor fan 106; the outdoor unit 100 further includes a partition 116, and the partition 116 is disposed in the casing 128 between the outdoor fan 106 and the compressor 114.

In this embodiment, the compressor 114 and the second heat exchanging part 110 are located at opposite sides of the outdoor fan 106 to prevent the compressor 114 from affecting the flow of the gas. The outdoor unit 100 further includes a partition 116, and the partition 116 extends in the blowing direction of the outdoor fan 106 and abuts against the inner wall of the casing 128 to separate the compressor 114.

The partition 116 divides the inside of the cabinet 128 into a heat exchange chamber 124 and an installation chamber 126, the first heat exchanger 102, the second heat exchanger 104, and the outdoor fan 106 are disposed in the heat exchange chamber 124, and the compressor 114 is disposed in the installation chamber 126. In this way, it is avoided that on the one hand the compressor 114 influences the gas flow and on the other hand the heat of the first heat exchanger 102 and the second heat exchanger 104 influences the service life of the compressor 114.

In an embodiment of the present invention, as shown in fig. 1, an air supplement port 118 is formed between the first heat exchanging portion 108 and the partition plate 116, and the air supplement port 118 is communicated with the air inlet; the partition 116 is disposed obliquely toward the second heat exchanger 104 side in the blowing direction of the outdoor fan 106.

In this embodiment, the first heat exchanging part 108 is spaced apart from the partition 116, and an air supplement opening 118 is formed at a suction side of the outdoor fan 106, and the air supplement opening 118 communicates with the air inlet and the heat exchanging chamber 124. Thus, when the outdoor fan 106 is running, the airflow entering the interior of the cabinet 128 through the air inlet can also enter between the first heat exchanger 102 and the second heat exchanger 104 through the air supplement opening 118 and pass through the second heat exchanger 104 under the action of the outdoor fan 106. The design of the air supply port 118 can provide a certain air supply effect, so as to increase the amount of heat exchange gas of the second heat exchanger 104.

In addition, in the air supply direction of the outdoor fan 106, the partition 116 is inclined toward the second heat exchanger 104 to guide the air flowing in from the air supplement port 118, so that the air can directly flow into the second heat exchanger 104, and the heat exchange efficiency of the second heat exchanger 104 is improved.

In an embodiment of the present invention, as shown in fig. 1, the outdoor fan 106 includes: a motor 120 disposed between the first heat exchanger 102 and the second heat exchanger 104; and a fan 122 connected to an output shaft of the motor 120 and driven by the motor 120 to rotate.

In this embodiment, the outdoor fan 106 includes a motor 120 and a fan 122. Wherein the motor 120 is disposed between the first heat exchanger 102 and the second heat exchanger 104, and the fan 122 is disposed on an output shaft of the motor 120, such that the fan 122 is driven by the motor 120 to rotate to drive the airflow to pass through the first heat exchanger 102 and the second heat exchanger 104.

In one embodiment of the present invention, as shown in fig. 1, the fan 122 is an axial fan; an output shaft of the motor 120 extends in the distribution direction of the first heat exchanging part 108 and the second heat exchanger 104.

In this embodiment, the fan 122 is an axial flow fan, and the output shaft of the motor 120 extends in the distribution direction of the first heat exchanging portion 108 and the second heat exchanger 104. Thus, when the fan 122 is driven by the motor 120 to rotate, air can be sucked at one side of the first heat exchanger 102, so that the air flowing out of the air inlet can exchange heat with the first heat exchanger 102 sufficiently. Accordingly, when the motor 120 drives the fan 122 to rotate, air can be blown on the side of the first heat exchanger 102, so that the air flow blown by the fan 122 passes through the second heat exchanger 104.

In one embodiment of the present invention, the outdoor fan 106 is configured to supply air to the first heat exchanger 102 and the second heat exchanger 104 for heat dissipation.

As shown in fig. 2 and 4, a second aspect of the present invention provides an air conditioner, including: an air-conditioning indoor unit 200; the outdoor unit 100 of the present invention.

The utility model provides an air conditioner, include like the utility model discloses the outdoor unit of air conditioner 100 of first aspect. Therefore, all the advantageous effects of the outdoor unit 100 are obtained, and will not be discussed herein.

Specifically, the air conditioner further includes an air conditioner indoor unit 200, and the air conditioner indoor unit 200 is connected to the air conditioner outdoor unit 100 through a heat exchange pipe.

In addition, when the air conditioner operates in the heating mode, the airflow passes through the motor 120 after passing through the first heat exchanger 102, and the motor 120 can slightly heat the airflow, so that the heat exchange temperature difference between the airflow and the second heat exchanger 104 is increased, and the heat exchange amount is increased.

In the specific embodiment, in the field of household split air conditioners, the components such as a heat exchanger, an outdoor fan, a compressor and the like in an air conditioner outdoor unit are compactly arranged due to the limitation of volume and the requirement of energy efficiency. The fan drives the air current to firstly exchange heat through the heat exchanger in a suction mode and then blow out the air current through the fan blades, and the heat exchange efficiency of the heat exchanger and the outdoor fan in an arrangement mode is low.

As shown in fig. 1, the present embodiment provides an outdoor unit 100 of an air conditioner, where the outdoor unit 100 includes: the components such as the cabinet 128, the compressor 114, the first heat exchanger 102, the second heat exchanger 104, the outdoor fan 106, etc.; the first heat exchanger 102 and the second heat exchanger 104 are both fin-and-tube heat exchangers.

The first heat exchanger 102 is a bent heat exchanger, the second heat exchanger 104 is a straight heat exchanger, and the bent angle α of the bent portion 112 in the first heat exchanger 102 is 70 ° to 120 °. Specifically, the first heat exchanger 102 may be divided into a first heat exchanging part 108, a bent part 112, and a second heat exchanging part 110. Specifically, the first heat exchanging portion 108 and the second heat exchanging portion 110 are both straight pipe sections, and the length of the second heat exchanger 104 is not greater than the length of the first heat exchanging portion 108.

Further, the first heat exchanger 102 may include one or two rows of first fins; the second heat exchanger 104 includes a row of second fins; the distance between two adjacent second fins in the second heat exchanger 104 is greater than or equal to the distance between two adjacent first fins in the first heat exchanger 102, so as to reduce the air resistance of the air flow passing through the second heat exchanger 104.

Further, the first heat exchanging part 108 and the second heat exchanger 104 of the first heat exchanger 102 are perpendicular to the axis of the fan 122.

As shown in fig. 1, the air conditioning outdoor unit 100 of the present embodiment has two heat exchangers, and the first heat exchanger 102 and the second heat exchanger 104 are respectively disposed upstream and downstream of the fan 122, the first heat exchanger 102 being an upstream heat exchanger, and the second heat exchanger 104 being a downstream heat exchanger. When the air conditioner is turned on, the fan 122 drives the air flow to firstly pass through the first heat exchanger 102 to exchange heat with the medium inside the first heat exchanger, and then the air flow passes through the outdoor fan 106 to exchange heat with the medium inside the second heat exchanger 104. Because the fan 122 is used for sucking air from all directions and blowing air in a fixed direction, the angle of air suction is large, the speed of air suction is low, the angle of air blowing is small, and the speed of air blowing is high. Therefore, the heat exchange efficiency of the second heat exchanger 104 is high, and the heat exchange efficiency of the entire outdoor unit 100 can be improved.

Compared with the prior art, the outdoor unit 100 of the air conditioner provided by the embodiment has the following advantages: the air speed passing through the second heat exchanger 104 is larger than that passing through the first heat exchanger 102, so that the overall heat exchange efficiency of the outdoor unit 100 is improved, and meanwhile, because the distance between two adjacent second fins in the second heat exchanger 104 is larger than that between two adjacent first fins in the first heat exchanger 102, the improvement of the wind resistance is small when the air passes through the second heat exchanger 104, so that the power of the outdoor fan 106 is not obviously improved. When the air conditioner operates in a heating mode, airflow passes through the motor 120 after passing through the first heat exchanger 102, and the motor 120 can slightly heat the airflow, so that the heat exchange temperature difference between the airflow and the second heat exchanger 104 is improved, and the heat exchange quantity is increased.

In addition, compared with the prior art, the air conditioner outdoor unit 100 provided in this embodiment can reduce the material of the fins and the copper pipes of the heat exchanger, and reduce the material cost of the heat exchanger. And at least one bend exists in the first heat exchanger 102, which effectively increases the heat exchange area between the first heat exchanger 102 and the air flow, and further increases the overall heat exchange efficiency of the outdoor unit 100.

In the embodiment, as shown in fig. 2 and 3, the air conditioner includes an indoor unit 200 and an outdoor unit 100; the indoor unit 200 of the air conditioner includes an indoor heat exchanger 202 and an indoor fan 204; the outdoor unit 100 of the air conditioner includes a compressor 114, a first heat exchanger 102, a second heat exchanger 104, and an outdoor fan 106, wherein the first heat exchanger 102 and the second heat exchanger 104 are connected in series; the air conditioner also comprises a first throttling valve 304 and a first one-way valve 306 which are connected in series, a second throttling valve 308 and a second one-way valve 310 which are connected in series, and a four-way valve 302, wherein the conduction directions of the first one-way valve 306 and the second one-way valve 310 are opposite.

When the air conditioner operates in the cooling mode, the branch where the first check valve 306 is located is closed, and the refrigerant exchanges heat with the first heat exchanger 102 and then exchanges heat with the second heat exchanger 104 in the outdoor unit 100 of the air conditioner. When the air conditioner operates in the heating mode, the branch where the second check valve 310 is located is closed, the refrigerant firstly passes through the branch where the second check valve 310 is located, and the refrigerant firstly exchanges heat with the second heat exchanger 104 and then exchanges heat with the first heat exchanger 102 in the outdoor unit.

In the embodiment, as shown in fig. 4 and 5, the air conditioner includes an indoor unit 200 and an outdoor unit 100; the indoor unit 200 of the air conditioner includes an indoor heat exchanger 202 and an indoor fan 204; the outdoor unit 100 of the air conditioner includes a compressor 114, a first heat exchanger 102, a second heat exchanger 104, and an outdoor fan 106, wherein the first heat exchanger 102 is connected in parallel with the second heat exchanger 104; the air conditioner also comprises a first throttling valve 304 and a first one-way valve 306 which are connected in series, a second throttling valve 308 and a second one-way valve 310 which are connected in series, and a four-way valve 302, wherein the conduction directions of the first one-way valve 306 and the second one-way valve 310 are opposite.

When the air conditioner operates in a cooling mode, the branch in which the first check valve 306 is located is closed, and when the air conditioner operates in a heating mode, the branch in which the second check valve 310 is located is closed. Regardless of the cooling mode or the heating mode of the air conditioner, the refrigerant is divided into two flows in the outdoor unit 100, and the two flows are respectively heat-exchanged with the first heat exchanger 102 and the second heat exchanger 104, and then are merged after the heat exchange.

In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically limited, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (12)

1. An outdoor unit of an air conditioner, comprising:

the first heat exchanger is at least provided with one bend;

the second heat exchanger is arranged at intervals with the first heat exchanger;

and the outdoor fan is arranged between the first heat exchanger and the second heat exchanger and is configured to drive airflow to pass through the first heat exchanger and the second heat exchanger in sequence.

2. The outdoor unit of claim 1, wherein the first heat exchanger comprises:

the first heat exchange part and the second heat exchanger are positioned on two opposite sides of the outdoor fan in the air supply direction;

the second heat exchange part is positioned on the side of the air supply direction of the outdoor fan;

and the bending part is connected to the first heat exchanging part and the second heat exchanging part.

3. The outdoor unit of claim 2, wherein,

the bending angle of the bending part is greater than or equal to 70 degrees and less than or equal to 120 degrees.

4. The outdoor unit of claim 2, wherein,

in the connection direction of the first heat exchanging part and the bent part, the length of the first heat exchanging part is greater than or equal to that of the second heat exchanger.

5. The outdoor unit of an air conditioner according to any one of claims 1 to 4,

the first heat exchanger comprises a plurality of first fins, and two adjacent first fins are arranged at intervals;

the second heat exchanger comprises a plurality of second fins, and every two adjacent second fins are arranged at intervals.

6. The outdoor unit of claim 5, wherein,

the distance between two adjacent second fins is greater than or equal to the distance between two adjacent first fins.

7. The outdoor unit of an air conditioner according to any one of claims 2 to 4,

the outdoor unit of the air conditioner also comprises a case, wherein the case comprises an air inlet and an air outlet which are communicated;

the first heat exchanger, the second heat exchanger and the outdoor fan are arranged in the case;

the first heat exchanger is located at the air inlet, and the second heat exchanger is located at the air outlet.

8. The outdoor unit of claim 7, wherein,

the outdoor unit of the air conditioner also comprises a compressor, and the compressor is arranged in the case;

the first heat exchanger and the second heat exchanger are connected in series or in parallel with the compressor.

9. The outdoor unit of claim 8, wherein,

the compressor and the second heat exchange part are positioned on two opposite sides of the outdoor fan;

the outdoor unit of the air conditioner further comprises a partition plate, wherein the partition plate is arranged in the case and is positioned between the outdoor fan and the compressor.

10. The outdoor unit of claim 9, wherein,

an air supplementing port is formed between the first heat exchanging part and the partition plate and is communicated with the air inlet;

and in the air supply direction of the outdoor fan, the partition plate is obliquely arranged towards one side of the second heat exchanger.

11. The outdoor unit of any one of claims 1 to 4, wherein the outdoor fan comprises:

the motor is arranged between the first heat exchanger and the second heat exchanger;

and the fan is connected with the output shaft of the motor and can rotate under the driving of the motor.

12. An air conditioner, comprising:

an air-conditioning indoor unit;

the outdoor unit of an air conditioner according to any one of claims 1 to 11.

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