CN206496550U - Parallel-flow heat exchanger and the air conditioner with it - Google Patents

Abstract

The utility model discloses a parallel flow heat exchanger and an air conditioner having the same. The parallel flow heat exchanger comprises: a plurality of flat tubes arranged side by side, and fins are arranged between two adjacent flat tubes , the fins include a plurality of sub-fin parts successively connected along the length direction of the flat tube, and a flow channel for passing fluid is defined between two adjacent sub-fin parts, and the flow channel An included angle α is formed with the central axis of the flat tube, and the α satisfies: 0°<α<90°. According to the parallel flow heat exchanger of the utility model, the angle α between the flow channel defined by two adjacent sub-fin parts of the fin and the central axis of the flat tube satisfies 0°<α<90°, when When the parallel flow heat exchanger is applied to an air conditioner, it can effectively reduce the noise generated when fluid such as air flow flows through the parallel flow heat exchanger. Furthermore, the structure of the parallel flow heat exchanger is simple.

Description

Parallel flow heat exchanger and air conditioner having same

technical field

The utility model relates to the technical field of air conditioning, in particular to a parallel flow heat exchanger and an air conditioner with the same.

Background technique

The parallel flow heat exchanger is an all-aluminum heat exchanger, and its high heat exchange efficiency and compact structure have become an important direction for the future development of heat exchangers. In the related art, when the parallel flow heat exchanger is used as the evaporator of the positive air outlet cabinet, there is a very obvious shortcoming: due to the structural limitation of the positive air outlet cabinet, the evaporator is generally placed obliquely, and a centrifugal fan is installed below the evaporator. fan. When the positive air outlet cabinet is working, the heat exchange air is blown up vertically after passing through the action of the centrifugal fan, and passes through the fins from the fin gap of the evaporator. However, due to the angle of the evaporator fins, after the heat exchange air passes through the fins, the flow direction will become perpendicular to the surface of the evaporator. It is precisely because of this change in flow angle that rustling like wind blowing leaves The sound, and the higher the wind speed, the more obvious the rustling sound, and the closer the evaporator is placed to the vertical, the greater the change in the flow angle of the heat exchange air fluid, and the rustling sound will become more and more obvious.

Utility model content

The utility model aims at at least solving one of the technical problems existing in the prior art. For this reason, an object of the utility model is to propose a parallel flow heat exchanger, when the parallel flow heat exchanger is applied to an air conditioner, it can effectively reduce noise.

Another object of the present utility model is to provide an air conditioner with the above-mentioned parallel flow heat exchanger.

The parallel flow heat exchanger according to the first aspect of the utility model includes: a plurality of flat tubes arranged side by side, fins are arranged between two adjacent flat tubes, and the fins include A plurality of sub-fin parts connected in sequence in the length direction, a flow channel for passing fluid is defined between two adjacent sub-fin parts, and the flow channel is sandwiched between the central axis of the flat tube Angle α, said α satisfies: 0°<α<90°.

According to the parallel flow heat exchanger of the utility model, the angle α between the flow channel defined by two adjacent sub-fin parts of the fin and the central axis of the flat tube satisfies 0°<α<90°, when When the parallel flow heat exchanger is applied to an air conditioner, it can effectively reduce the noise generated when fluid such as air flow flows through the parallel flow heat exchanger. Furthermore, the structure of the parallel flow heat exchanger is simple.

According to some embodiments of the present utility model, the α further satisfies: 20°≤α≤50°.

According to some embodiments of the present utility model, a plurality of said flat tubes are arranged in parallel.

According to some embodiments of the present utility model, the fins are corrugated fins.

The air conditioner according to the second aspect of the utility model includes: a casing; a fan, the fan is arranged in the casing; the parallel flow heat exchanger according to the above first aspect of the utility model, the parallel flow heat exchanger It is arranged in the casing, and the flow channel of the parallel flow heat exchanger is substantially parallel to the air outlet direction of the fan.

According to some embodiments of the present invention, the parallel flow heat exchanger is obliquely arranged in the housing.

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

Description of drawings

The above and/or additional aspects and advantages of the present utility model will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is a partial schematic view of a parallel flow heat exchanger according to an embodiment of the present invention;

Figure 2 is a side view of the parallel flow heat exchanger shown in Figure 1;

Fig. 3 is a schematic diagram of the parallel flow heat exchanger shown in Fig. 1 being arranged in the air conditioner.

Reference signs:

100: Parallel flow heat exchanger;

1: Flat tube; 2: Fin; 3: Collector;

21: sub-fin portion; 22: runner.

detailed description

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model, but should not be construed as limiting the present utility model.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial ", "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying No device or element must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

In the present invention, unless otherwise clearly specified and limited, a first feature being "on" or "below" a second feature may include direct contact between the first and second features, and may also include the first and second features being in direct contact with each other. The features are not in direct contact but through another feature between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "below" and "under" the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is less horizontal than the second feature.

The parallel flow heat exchanger according to the embodiment of the first aspect of the utility model will be described below with reference to FIGS. 1-3 . The parallel flow heat exchanger can be applied to an air conditioner such as a cabinet (not shown). In the following description of the present application, the parallel flow heat exchanger is used as an example for illustration. Of course, those skilled in the art can understand that the parallel flow heat exchanger can also be applied to other types of air conditioners, not limited to cabinet machines.

As shown in FIGS. 1-3 , the parallel flow heat exchanger 100 according to the embodiment of the first aspect of the present invention includes a plurality of flat tubes 1 .

A plurality of flat tubes 1 are arranged side by side. At this moment, a plurality of flat tubes 1 can be arranged in a row. Further, a plurality of flat tubes 1 may be arranged in parallel (as shown in FIG. 1 ), of course, there may be a certain angle between two adjacent flat tubes 1 among the plurality of flat tubes 1 (not shown in the figure).

Fins 2 are provided between two adjacent flat tubes 1 , and the fins 2 can be used to enhance the heat exchange effect of the parallel flow heat exchanger 100 . As shown in FIGS. 2 and 3 , the extending direction of the fins 2 is roughly consistent with the longitudinal direction of the flat tube 1 . Specifically, as shown in FIG. 1 , the fin 2 includes a plurality of sub-fin parts 21 successively connected along the length direction of the flat tube 1, and a boundary between adjacent two sub-fin parts 21 is defined for fluid (including liquid and The flow channel 22 through which the gas passes, the angle α between the flow channel 22 and the central axis of the flat tube 1, α satisfies: 0°<α<90°. At this time, the flow channel 22 is arranged obliquely relative to the central axis of the flat tube 1 , and the flow channel 22 is neither parallel nor coincident with the central axis of the flat tube 1 .

For example, as shown in Figure 1, a plurality of flat tubes 1 are parallel to each other, and headers 3 are respectively provided at both ends of the plurality of flat tubes 1, and the two ends of each flat tube 1 can be respectively inserted into corresponding headers 3 Inside, the flat tube 1 communicates with the inside of the header 3 . In the following description of the present application, for the convenience of distinction, the headers 3 at both ends of the plurality of flat tubes are referred to as inlet headers and outlet headers, respectively. Fins 2 are arranged between every two adjacent flat tubes 1 in the plurality of flat tubes 1 , and the fins 2 extend in a broken line along the length direction of the flat tubes 1 , and the fins 2 can extend along the axis of the flat tubes 1 The length of the fins 2 may be roughly equal to the length of the flat tubes 1, and the two sides of the fins 2 may be respectively in contact with the adjacent flat tubes 1, so as to further enhance heat exchange. Further, fins 2 may also be provided on the outer sides of the two flat tubes 1 located on both sides. When the parallel flow heat exchanger 100 is working, the refrigerant can enter the plurality of flat tubes 1 from the inlet header respectively, and then flow out from the outlet header. During this process, the fluid flowing through the channels of the fins 2 can exchange heat with the refrigerant in the parallel flow heat exchanger 100 .

When the parallel flow heat exchanger 100 is applied to an air conditioner such as a cabinet machine, the parallel flow heat exchanger 100 is used as an evaporator, and the specific setting position of the parallel flow heat exchanger 100 can make the flow channel 22 of the fin 2 be compatible with the The air outlet direction of the fan of the cabinet machine is roughly parallel, so that the flow direction of the airflow blown from the fan remains basically unchanged after passing through the parallel flow heat exchanger 100, so that the airflow generated when the airflow passes through the parallel flow heat exchanger 100 can be effectively reduced. Noise, improve user comfort.

According to the parallel flow heat exchanger 100 of the embodiment of the present invention, the angle α between the flow channel 22 defined by two adjacent sub-fin parts 21 of the fin 2 and the central axis of the flat tube 1 satisfies 0° <α<90°, when the parallel flow heat exchanger 100 is applied to an air conditioner such as a cabinet machine, it can effectively reduce the noise generated when fluid such as air flows through the parallel flow heat exchanger 100 . Furthermore, the structure of the parallel flow heat exchanger 100 is simple.

According to a further embodiment of the present invention, the included angle α further satisfies: 20°≤α≤50°. Therefore, by limiting the specific value range of the included angle α between 20°-50°, the actual use requirements of most air conditioners, such as cabinet machines, can be met, even if the flow channel 22 of the fin 2 is connected to the flow channel of the fan. The air outlet direction is roughly parallel. It can be understood that the specific value of the included angle α can be specifically set according to actual requirements, so as to better meet actual requirements.

Optionally, as shown in FIG. 1 , the fins 2 are corrugated fins, but not limited thereto. It can be understood that the specific shape of the fins 2 can be specifically set according to actual requirements, so as to achieve a better heat exchange effect.

According to the parallel flow heat exchanger 100 of the embodiment of the present invention, when the parallel flow heat exchanger 100 is applied to an air conditioner such as a cabinet machine, the flow direction of the airflow blown from the fan, such as the heat exchange air passing through the fins 2, will not appear The large inclination and change can effectively suppress the generation of noise and improve the comfort of users.

The air conditioner such as a cabinet according to the embodiment of the second aspect of the present invention includes a housing, a fan and a parallel flow heat exchanger 100 . Wherein, the parallel flow heat exchanger 100 may be the parallel flow heat exchanger 100 according to the embodiment of the first aspect of the utility model.

Specifically, both the fan and the parallel flow heat exchanger 100 are disposed in the casing, and the flow channel 22 of the parallel flow heat exchanger 100 is approximately parallel to the air outlet direction of the fan. For example, the parallel flow heat exchanger 100 can be arranged obliquely in the casing as shown in FIG. The air outlet of the fan can be located directly below the parallel flow heat exchanger 100, and the heat exchange air passes through the flow channel 22 of the contact piece when exchanging heat with the parallel flow heat exchanger 100, so that the flow direction of the heat exchange air will not change. changes, thereby effectively avoiding the generation of noise.

Optionally, the fan is a centrifugal fan, but not limited thereto.

According to the air conditioner of the embodiment of the utility model, such as a cabinet machine, by using the above-mentioned parallel flow heat exchanger 100, the flow direction of the heat exchange air will not change in angle when it flows from the fan through the parallel flow heat exchanger 100, so that it can Suppresses noise generation.

Other configurations and operations of the parallel flow heat exchanger 100 and the air conditioner such as the cabinet according to the embodiment of the present utility model are known to those skilled in the art and will not be described in detail here.

In the description of this specification, references to the terms "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific examples," or "some examples" are intended to mean that the implementation Specific features, structures, materials or characteristics described in an embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and modifications, the scope of the present invention is defined by the claims and their equivalents.

Claims (6)

1. a kind of parallel-flow heat exchanger, it is characterised in that including：

Fin is provided between the multiple flat tubes being arranged side by side, the two neighboring flat tube, the fin is included along the flat tube Limit between many sub- fin parts that length direction is sequentially connected, the two neighboring sub- fin part for enabling flow through Into angle α between the central axis of runner, the runner and the flat tube, the α is met：0 ° of 90 ° of ＜ α ＜.

2. parallel-flow heat exchanger according to claim 1, it is characterised in that the α is further met：20°≤α≤50°.

3. parallel-flow heat exchanger according to claim 1 or 2, it is characterised in that multiple flat tubes be arranged in parallel.

4. parallel-flow heat exchanger according to claim 1, it is characterised in that the fin is corrugated fin.

5. a kind of air conditioner, it is characterised in that including：

Housing；

Blower fan, the blower fan is located in the housing；

Parallel-flow heat exchanger according to any one of claim 1-4, the parallel-flow heat exchanger is located in the housing, And the air-out direction of the runner and the blower fan of the parallel-flow heat exchanger is almost parallel.

6. air conditioner according to claim 5, it is characterised in that the parallel-flow heat exchanger is obliquely located at the housing It is interior.