CN214666183U - Heat exchanger and air conditioner with same - Google Patents

Abstract

The utility model discloses a heat exchanger and air conditioner that has it, the heat exchanger includes: the heat exchange tube comprises a plurality of straight tubes and a plurality of bent tubes connected with the straight tubes; the fin group comprises a plurality of heat exchange fins, the heat exchange fins penetrate through the plurality of straight pipes, the heat exchange fins are arranged along the length direction of the straight pipes, a first air flow channel is defined between every two adjacent heat exchange fins, and the first air flow channel is a non-straight channel along the flowing direction of air flow. According to the utility model discloses heat exchanger through setting first airflow channel to non-straight passageway, can avoid heat transfer fin's surface to form the laminar flow to improve heat exchange efficiency of heat exchanger, have the splashproof water effect again simultaneously, can reduce the risk that electrified part contacted water in the air conditioner, prolonged the life of air conditioner, and non-straight passageway can shelter from outside sight, avoids the user directly to see the inner structure of air conditioner.

Description

Heat exchanger and air conditioner with same

Technical Field

The utility model belongs to the technical field of the air conditioner and specifically relates to a heat exchanger and air conditioner that has it is related to.

Background

In the related art, a heat exchange fin of a heat exchanger of an air conditioner generally employs a straight fin. However, the straight-line fin has three main disadvantages:

(1) when air flows in a channel defined between two adjacent heat exchange fins, laminar flow is easily formed on the surfaces of the heat exchange fins, so that the heat exchange effect of the air is poor, and the overall heat exchange efficiency of the heat exchanger is reduced;

(2) external water drops can directly enter the air conditioner through a channel defined between two adjacent heat exchange fins, so that the risk that an electrified part in the air conditioner contacts water can be increased;

(3) the user can directly see the internal structure of the air conditioner through the channel defined between the two adjacent heat exchange fins, thereby influencing the aesthetic property of the air conditioner.

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, an object of the utility model is to provide a heat exchanger, can avoid heat transfer fin's surface to form laminar flow, improve the heat exchange efficiency of heat exchanger, have the splashproof water effect simultaneously again.

Another object of the present invention is to provide an air conditioner with the above heat exchanger.

According to the utility model discloses heat exchanger of first aspect embodiment includes: the heat exchange tube comprises a plurality of straight tubes and a plurality of bent tubes connected with the straight tubes; the fin group comprises a plurality of heat exchange fins, the heat exchange fins penetrate through the plurality of straight pipes, the heat exchange fins are arranged along the length direction of the straight pipes, a first air flow channel is defined between every two adjacent heat exchange fins, and the first air flow channel is a non-straight channel along the flowing direction of air flow.

According to the utility model discloses heat exchanger, through setting first airflow channel to non-straight passageway, can avoid heat transfer fin's surface to form laminar flow for the air current can fully contact with heat transfer fin, thereby improve heat exchange efficiency of heat exchanger, has the splashproof water effect again simultaneously, can reduce the risk that electrified part contacted water in the air conditioner, has prolonged the life of air conditioner, and non-straight passageway can shelter from outside sight, avoids the user directly to see the inner structure of air conditioner.

According to some embodiments of the present invention, each of the heat exchanging fins includes at least one first fin portion and at least one second fin portion, the second fin portion and the first fin portion are connected to each other along a flow direction of the air flow, and the second fin portion and the first fin portion are not in the same plane.

According to some embodiments of the present invention, each of the heat exchange fins further comprises: at least one third fin portion connected between the first fin portion and the second fin portion, the third fin portion being out of plane with the first fin portion and out of plane with the second fin portion.

According to some embodiments of the present invention, an angle between the first fin portion and the third fin portion is α, and an angle between the second fin portion and the third fin portion is β, wherein α and β satisfy: alpha is more than or equal to 120 degrees and less than or equal to 150 degrees, and beta is more than or equal to 120 degrees and less than or equal to 150 degrees.

According to some embodiments of the invention, the first fin portion and the second fin portion are both arranged obliquely with respect to the central axis of the straight pipe, and the third fin portion is perpendicular to the central axis of the straight pipe.

According to some embodiments of the invention, a side of the first fin portion remote from the second fin portion has a first flange; and/or the side of the second fin part far away from the first fin part is provided with a second flanging.

According to some embodiments of the utility model, every heat transfer fin's the ascending both sides surface of thickness direction is first surface and second surface respectively, every heat transfer fin's at least some follow first surface orientation the second surface is protruding, and is a plurality of heat transfer fin's at least some all orientation the same one end of straight tube is protruding.

According to some embodiments of the utility model, the edge of fin group one side of heat transfer fin's thickness direction is equipped with first end plate, first end plate is close to heat transfer fin the second surface, be equipped with the shielding part on the first end plate, the shielding part is used for sheltering from being located a plurality of the heat exchange tube in the heat transfer fin with first end plate distance nearest one with part between the first end plate.

According to some embodiments of the present invention, the fin group is provided with a second end plate on the other side in the thickness direction of the heat exchange fin, and at least a portion of the second end plate penetrating through the straight tube is adapted to the shape of the heat exchange fin so as to define a second air flow passage between the second end plate and the closest one of the heat exchange fin and the second end plate.

According to the utility model discloses air conditioner of second aspect embodiment, include according to the utility model discloses the heat exchanger of the embodiment of above-mentioned first aspect.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, 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 diagram of a heat exchanger according to an embodiment of the present invention;

FIG. 2 is a top view of the heat exchanger shown in FIG. 1;

FIG. 3 is a schematic view of the flow of air within the first air flow path of the heat exchanger shown in FIG. 1;

FIG. 4 is a schematic view of the flow of air within a second air flow path of the heat exchanger shown in FIG. 1;

FIG. 5 is a schematic view of the flow of water droplets within the first air flow passage of the heat exchanger shown in FIG. 1;

FIG. 6 is a schematic view of a heat exchange fin of the heat exchanger shown in FIG. 1;

FIG. 7 is a schematic view of another angle of a heat exchange fin of the heat exchanger shown in FIG. 1;

FIG. 8 is a partial cross-sectional view of the heat exchanger fin shown in FIG. 7;

FIG. 9 is a schematic view of a first end plate of the heat exchanger shown in FIG. 1;

FIG. 10 is a schematic view of another angle of the first end plate of the heat exchanger shown in FIG. 1;

FIG. 11 is a schematic view of yet another angle of the first end plate of the heat exchanger shown in FIG. 1;

FIG. 12 is a schematic view of a second end plate of the heat exchanger shown in FIG. 1;

fig. 13 is a schematic view of another angle of the second end plate of the heat exchanger shown in fig. 1.

Reference numerals:

100: a heat exchanger;

1: a heat exchange pipe; 11: a straight pipe; 12: bending the pipe;

2: fin group: 21: heat exchange fins; 211: a first fin portion; 2111: a first flanging;

212: a second fin portion; 2121: second flanging; 213: a third fin portion; 214: a first surface;

215: a second surface; 217: perforating the tube holes; 218: a positioning groove; 219: positioning the projection;

3: a first air flow passage; 4: a second airflow channel; 5: a first end plate; 51: a shielding portion;

511: a first mounting hole; 52: an installation part; 521: a first through hole; 53: a first extension portion;

6: a second end plate; 61: a second extension portion; 611: a second mounting hole; 62: a second via.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary.

A heat exchanger 100 according to an embodiment of the first aspect of the present invention is described below with reference to fig. 1-13. The heat exchanger 100 may be applied to an air conditioner (not shown). In the following description of the present application, the heat exchanger 100 will be described as being applied to an air conditioner as an example.

As shown in fig. 1 to 13, a heat exchanger 100 according to an embodiment of the first aspect of the present invention includes a heat exchange tube 1 and a fin group 2.

Specifically, the heat exchange pipe 1 includes a plurality of straight pipes 11 and a plurality of bent pipes 12 connecting the plurality of straight pipes 11. In the description of the present invention, "a plurality" means two or more. The fin group 2 includes a plurality of heat exchange fins 21, the plurality of heat exchange fins 21 are arranged on the plurality of straight pipes 11 in a penetrating manner, and the plurality of heat exchange fins 21 are arranged along the length direction of the straight pipes 11. For example, in the example of fig. 1, 2 and 6, four through holes 217 are formed in each heat exchange fin 21, the four through holes 217 are arranged at intervals along the length direction of the heat exchange fin 21, four straight pipes 11 of the heat exchange pipe 1 can be respectively arranged on the corresponding through holes 217 in a penetrating manner, then, the heat exchange pipe 1 is subjected to pipe expanding treatment, so that the plurality of heat exchange fins 21 are connected in series to form a whole, two adjacent straight pipes 11 can be connected through an elbow pipe 12, and optionally, the two adjacent straight pipes 11 and the elbow pipe 12 connected between the two adjacent straight pipes 11 can be an integrally formed U-shaped pipe. But is not limited thereto.

Four straight tubes 11, four through holes 217 and two bent tubes 12 are shown in fig. 1 for illustrative purposes, but it is obvious to those skilled in the art after reading the technical solution of the present application that the solution can be applied to other numbers of straight tubes 11, through holes 217 and bent tubes 12, which also falls within the protection scope of the present invention.

The first air flow channel 3 is defined between two adjacent heat exchange fins 21, and the first air flow channel 3 is a non-straight channel along the flowing direction of the air flow. It should be noted that the term "non-straight channel" in this application refers to a channel that is not straight. When the gas flow flows in the first gas flow path 3, the flow path of the gas flow is nonlinear. For example, the first air flow path 3 may have at least one corner, but is not limited thereto. With reference to fig. 3 to 5, when the airflow passes through the first airflow channel 3, the flowing direction of the airflow may be changed at least once in the first airflow channel 3, so as to enhance the disturbance of the airflow in the first airflow channel 3, avoid the formation of laminar flow on the surface of the heat exchange fin 21 when the airflow passes through the first airflow channel 3, enable the airflow to fully contact with the heat exchange fin 21, and further improve the overall heat exchange efficiency of the heat exchanger 100. Moreover, by setting the first air flow channel 3 to be a non-straight channel, when external water drops enter the first air flow channel 3, the external water drops can be ensured to be in contact with the heat exchange fins 21 as far as possible, so that the external water drops can be evaporated in the first air flow channel 3, the external water drops can be effectively prevented from entering the air conditioner, the anti-splashing effect is achieved, the risk of water contact of the charged part in the air conditioner can be reduced, and the service life of the air conditioner is prolonged. In addition, the non-straight channel can shield the external sight line, and the user is prevented from directly seeing the internal structure of the air conditioner.

According to the utility model discloses heat exchanger 100, through setting first airflow channel 3 to non-straight passageway, the surface of heat transfer fin 21 forms laminar flow when can effectively avoiding the air current to flow through first airflow channel 3, make the air current can fully contact with heat transfer fin 21, thereby heat exchange efficiency of heat exchanger 100 has been improved, first airflow channel 3 has the splashproof water effect again simultaneously, when heat exchanger 100 is applied to the air conditioner, can reduce the risk that electrified part touches water in the air conditioner, the normal work of air conditioner has been guaranteed, the life of air conditioner has been prolonged, and non-straight passageway can shelter from outside sight, avoid the user directly to see the inner structure of air conditioner.

According to some embodiments of the present invention, each heat exchanging fin 21 includes at least one first fin portion 211 and at least one second fin portion 212, the second fin portion 212 and the first fin portion 211 are connected to each other along the flowing direction of the air flow, and the second fin portion 212 and the first fin portion 211 are not in the same plane. For example, each of the heat exchanging fins 21 may include one first fin portion 211 and one second fin portion 212, in which case the heat exchanging fin 21 may have a V-shape, and an included angle between the first fin portion 211 and the second fin portion 212 may be an acute angle. By the arrangement, the first air flow channel 3 can be effectively ensured to be a non-straight channel, and the heat exchange fins 21 are easy to process. Because the first air flow channel 3 is substantially V-shaped, the flowing direction of the air flow can be changed in the process that the air flow flows through the first air flow channel 3, thereby enhancing the disturbance of the air flow, preventing the laminar flow phenomenon on the surface of the heat exchange fin 21, ensuring the effective contact between the air flow and the heat exchange fin 21, and further effectively improving the heat exchange efficiency of the heat exchanger 100.

Further, each heat exchanging fin 21 may further include at least one third fin portion 213, the third fin portion 213 being connected between the first fin portion 211 and the second fin portion 212, the third fin portion 213 being not in the same plane as the first fin portion 211, and the third fin portion 213 being not in the same plane as the second fin portion 212. For example, in the example of fig. 6 to 8, each of the heat exchanging fins 21 includes one first fin portion 211, one second fin portion 212, and one third fin portion 213, the shape of the first fin portion 211, the shape of the second fin portion 212, and the shape of the third fin portion 213 are each substantially rectangular, and the first fin portion 211, the second fin portion 212, and the third fin portion 213 may each be configured as a planar sheet-like structure, the first fin portion 211 and the second fin portion 212 are respectively connected to both ends in the width direction of the third fin portion 213, and the free end of the first fin portion 211 and the free end of the second fin portion 212 are each located on the same side in the thickness direction of the third fin portion 213, when the shape of the heat exchanging fin 21 is substantially trapezoidal. Thus, since the first fin portion 211, the second fin portion 212, and the third fin portion 213 are not all in the same plane, the connection point of the first fin portion 211 and the third fin portion 213 is a corner, and the connection point of the second fin portion 212 and the third fin portion 213 is a corner, which is two corners in total. When the air current flows through the first air current channel 3, the flowing direction of the air current can be changed for many times, so that the air current can be more fully contacted with the surface of the heat exchange fin 21, meanwhile, the surface of the heat exchange fin 21 is prevented from forming laminar flow, the heat exchange efficiency of the heat exchanger 100 can be further improved, and the external water drops can be fully evaporated in the first air current channel 3.

Alternatively, as shown in fig. 5, the included angle between the first fin portion 211 and the third fin portion 213 is α, and the included angle between the second fin portion 212 and the third fin portion 213 is β, where α and β respectively satisfy: alpha is more than or equal to 120 degrees and less than or equal to 150 degrees, and beta is more than or equal to 120 degrees and less than or equal to 150 degrees. When α < 120 °, the angle between the first fin portion 211 and the third fin portion 213 approaches a right angle, or the angle between the first fin portion 211 and the third fin portion 213 is an acute angle, which may affect the smoothness of the airflow flowing in the first airflow channel 3; when α > 150 °, the included angle between the first fin portion 211 and the third fin portion 213 is large, so that the first fin portion 211 and the third fin portion 213 are substantially located in the same plane, so that the first air flow channel 3 is closer to a straight channel, thereby possibly forming a laminar flow on the surface of the heat exchange fin 21, which affects the heat exchange efficiency of the heat exchanger 100. Similarly, when β < 120 °, the angle between the second fin portion 212 and the third fin portion 213 approaches a right angle, or the angle between the second fin portion 212 and the third fin portion 213 is an acute angle, which may also affect the smoothness of the airflow flowing in the first airflow channel 3; when β > 150 °, the included angle between the second fin portion 212 and the third fin portion 213 is large, so that the second fin portion 212 and the third fin portion 213 are substantially located in the same plane, so that the first air flow channel 3 is closer to a straight channel, and thus the surface of the heat exchange fin 21 forms laminar flow, affecting the heat exchange efficiency of the heat exchanger 100. Therefore, when the alpha and the beta meet the conditions that the alpha is more than or equal to 120 degrees and less than or equal to 150 degrees and the beta is more than or equal to 120 degrees and less than or equal to 150 degrees, laminar flow can be effectively avoided on the surface of the heat exchange fin 21, the heat exchange efficiency of the heat exchanger 100 is improved, and the smoothness of the air flow flowing in the first air flow channel 3 can be ensured.

According to some optional embodiments of the present invention, the first fin portion 211 and the second fin portion 212 are both disposed obliquely with respect to the central axis of the straight pipe 11, and the third fin portion 213 is perpendicular to the central axis of the straight pipe 11. For example, in the example of fig. 2 and 6, the free end of the first fin portion 211 and the free end of the second fin portion 212 both extend obliquely toward a direction away from each other, whereby the length of the heat exchange fin 2 can be relatively extended in a limited space, so that the length of the first air flow channel 3 can be effectively increased, so that the air flow can sufficiently exchange heat with the heat exchange fin 2, and the heat exchange effect of the air flow can be further enhanced. Further, the tube insertion hole 217 may be formed in the third fin portion 213, and by making the third fin portion 213 perpendicular to the central axis of the straight tube 11, it is possible to secure reliable connection of the straight tube 11 and the third fin portion 213, while facilitating the processing of the tube insertion hole 217.

According to some optional embodiments of the present invention, the length of the first fin portion 211 in the flow direction of the air current is greater than the length of the third fin portion 213 in the flow direction of the air current, and the length of the second fin portion 212 in the flow direction of the air current is greater than the length of the third fin portion 213 in the flow direction of the air current. For example, referring to fig. 3 to 5, the length of the first fin portion 211 may be equal to the length of the second fin portion 212, and the first fin portion 211 and the second fin portion 212 may be symmetrical with respect to the central axis of the straight pipe 11. So set up, when guaranteeing that the air current can change flow direction many times in first air current channel 3, can reduce the proportion of the straight passageway of level in the first air current channel 3, further strengthen the disturbance of air current to the phenomenon of laminar flow appears in the surface that can further avoid heat transfer fin 21, simplified heat transfer fin 21's structure simultaneously, convenient processing, thereby can reduce cost.

In some alternative embodiments, the side of the first fin portion 211 remote from the second fin portion 212 has a first cuff 2111, and/or the side of the second fin portion 212 remote from the first fin portion 211 has a second cuff 2121. Wherein, only one side of the first fin portion 211 away from the second fin portion 212 may have the first burring 2111; alternatively, only the side of the second fin portion 212 remote from the first fin portion 211 may have the second burring 2121; alternatively, the first fin portion 211 has a first burring 2111 on the side away from the second fin portion 212, and the second fin portion 212 has a second burring 2121 on the side away from the first fin portion 211. This can increase the structural strength of the first fin 211 or the second fin 212, and prevent the free end of the first fin 211 or the second fin 212 from being deformed.

Alternatively, the first cuff 2111 may be folded over from a portion of the first fin portion 211, and similarly, the second cuff 2121 may be folded over from a portion of the second fin portion 212. Therefore, the first fin portion 211, the first turned-up edge 2111, the second fin portion 212 and the second turned-up edge 2121 can be integrally formed, the heat exchange fin 21 is conveniently processed, and the production efficiency of the heat exchange fin 21 is improved. But is not limited thereto.

According to some embodiments of the present invention, as shown in fig. 1 and 2, two side surfaces in the thickness direction of each heat exchange fin 21 are a first surface 214 (for example, a right side surface in fig. 6) and a second surface 215 (for example, a left side surface in fig. 6), respectively, at least a portion of each heat exchange fin 21 protrudes from the first surface 214 toward the second surface 215, and at least a portion of each of the plurality of heat exchange fins 21 all protrudes toward the same end of the straight pipe 11. Therefore, the first air flow channel 3 can be effectively ensured to be a non-straight channel, laminar flow on the surface of the heat exchange fin 21 is avoided, the air flow can be fully contacted with the heat exchange fin 21, and the heat exchange efficiency of the heat exchanger 100 is improved. After the heat exchanging fins 2 are installed, the first surfaces 214 of the plurality of heat exchanging fins 21 may all face in the same direction. For example, the plurality of heat exchange fins 21 may be placed upright, in which case the length direction of each heat exchange fin 21 may be the same as the vertical direction, and the first surfaces 214 of the plurality of heat exchange fins 21 may face the right side of fig. 6. Therefore, the heat exchange fins 21 are convenient to mount and dismount, and the assembly efficiency is improved.

Further, one side of the fin group 2 in the thickness direction of the heat exchange fins 21 is provided with a first end plate 5, the first end plate 5 is adjacent to the second surface 215 of the heat exchange fins 21, the first end plate 5 is provided with a shielding portion 51, and the shielding portion 51 is used for shielding a part of the heat exchange tube 1, which is located between one of the plurality of heat exchange fins 21 closest to the first end plate 5 and the first end plate 5. Referring to fig. 2 in combination with fig. 9 to 11, at least a portion of the cross-sectional shape of the first end plate 5 may be substantially T-shaped, the first end plate 5 further includes two mounting portions 52 and two first extending portions 53, the two mounting portions 52 and the two first extending portions 53 are arranged in a staggered manner, the two first extending portions 53 and the shielding portion 51 are located in the same horizontal plane, the first extending portions 53 and the shielding portion 51 are respectively located on two sides of the mounting portions 52, and the two mounting portions 52 and the shielding portion 51 are vertically connected. A plurality of first through holes 521 may be formed in each mounting portion 52, the plurality of first through holes 521 correspond to the plurality of through holes 217 in the heat exchange fin 21 one by one, and the straight pipes 11 may be inserted through the corresponding first through holes 521 and the corresponding through holes 217. Each of the first extensions 53 is formed with a first mounting hole 511, a threaded fastener such as a screw may pass through the first mounting hole 511 to fix the heat exchanger 100 to the cabinet of the air conditioner, and the shielding portion 51 may shield a portion of the heat exchange fins 21 adjacent to the first end plate 5 among the plurality of heat exchange fins 21 and the straight tube 11 between the heat exchange fins 21 and the first end plate 5. Thus, the air conditioner can be more beautiful than a conventional air conditioner.

According to some embodiments of the present invention, a plurality of through holes 217 are formed on each heat exchanging fin 21, a positioning protrusion 219 protruding from the first surface 214 is disposed on a sidewall of each through hole 217, a positioning groove 218 opening toward the second surface 215 is defined between the positioning protrusion 219 and the through hole 217, and the positioning protrusion 219 of one of the two adjacent heat exchanging fins 21 is fitted in the positioning groove 218 of the other of the two adjacent heat exchanging fins 21. For example, in the example of fig. 1 and 6-8, the positioning protrusion 219 is provided on a sidewall of the through-tube aperture 217, and the positioning protrusion 219 extends away from the first surface 214, while the positioning protrusion 219 and the through-tube aperture 217 may together define a positioning recess 218, and a side of the positioning recess 218 adjacent to the second surface 215 is open. When the heat exchange fin 21 is installed, the positioning projection 219 on the heat exchange fin 21 may be fitted in the positioning groove 218 of the heat exchange fin 21 adjacent thereto. Therefore, two adjacent heat exchange fins 21 can play a mutual supporting role through the positioning protrusions 219 and the positioning grooves 218, so that the supporting strength between two adjacent heat exchange fins 21 can be effectively improved, a fixed distance is kept between two adjacent heat exchange fins 21, and then the heat exchange fins 21 can be effectively prevented from falling, the air leakage phenomenon is prevented, and the heat exchange efficiency of the heat exchanger 100 is further ensured.

Further, the other side of the fin group 2 in the thickness direction of the heat exchange fins 21 is provided with a second end plate 6, and at least the portion of the second end plate 6 penetrating the straight tube 11 is adapted to the shape of the heat exchange fins 21 to define a second air flow channel 4 between the second end plate 6 and the one of the plurality of heat exchange fins 21 closest to the second end plate 6. For example, in the example of fig. 4, the shape of the portion of the second end plate 6 penetrating the straight tube 11 is substantially trapezoidal, and the shape of the second air flow channel 4 is the same as the shape of the first air flow channel 3, in which case the second air flow channel 4 is a non-straight channel. When the air flow is blown to the heat exchanger 100, the air flow can exchange heat through the first air flow path 3 and the second air flow path 4. Therefore, the heat exchange area of the heat exchanger 100 is effectively increased, laminar flow on the surfaces of the plurality of heat exchange fins 21 can be avoided, and the heat exchange efficiency of the heat exchanger 100 can be further improved.

Alternatively, as shown in fig. 12 and 13, a plurality of second through holes 62 are formed in the second end plate 6, and the plurality of second through holes 62 correspond to the plurality of through holes 217 of the heat exchange fins 21 one by one, when the heat exchange fin 21 is installed, a plurality of positioning protrusions 219 of the heat exchange fins 21 adjacent to the second end plate 6 in the plurality of heat exchange fins 21 can be fitted into the corresponding second through holes 62, so that the heat exchange fins 21 and the second end plate 6 can support each other through the positioning protrusions 219 and the second through holes 62, and the position of the second end plate 6 can be effectively ensured to be stable and reliable.

Further, referring to fig. 12 and 13, at least one end of the second end plate 6 in the width direction is provided with a second extension portion 61, a second mounting hole 611 is formed on the second extension portion 61, and a threaded fastener such as a screw may pass through the second mounting hole 611 to fix the heat exchanger 100 to the cabinet of the air conditioner. Thus, by providing the first and second mounting holes 511 and 611, the heat exchanger 100 can be more reliably mounted in the air conditioner.

According to the second aspect embodiment of the present invention, the air conditioner includes the heat exchanger 100 according to the first aspect embodiment of the present invention.

According to the utility model discloses the air conditioner, through adopting above-mentioned heat exchanger 100, can improve the heat exchange efficiency of air conditioner effectively.

Alternatively, the heat exchanger 100 may be applied to an outdoor unit of an air conditioner, and may also be applied to an indoor unit of an air conditioner. It is understood that the specific application position of the heat exchanger 100 can be specifically set according to actual requirements to better meet the actual application.

Other configurations and operations of the air conditioner according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.

In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean 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 present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A heat exchanger, comprising:

the heat exchange tube comprises a plurality of straight tubes and a plurality of bent tubes connected with the straight tubes;

the fin group comprises a plurality of heat exchange fins, the heat exchange fins penetrate through the plurality of straight pipes, the heat exchange fins are arranged along the length direction of the straight pipes, a first air flow channel is defined between every two adjacent heat exchange fins, and the first air flow channel is a non-straight channel along the flowing direction of air flow.

2. The heat exchanger according to claim 1, wherein each of the heat exchange fins includes at least one first fin portion and at least one second fin portion, the second fin portion and the first fin portion being connected to each other in a flow direction of the air flow, the second fin portion being different from the first fin portion in a same plane.

3. The heat exchanger of claim 2, wherein each of the heat exchange fins further comprises:

at least one third fin portion connected between the first fin portion and the second fin portion, the third fin portion being out of plane with the first fin portion and out of plane with the second fin portion.

4. The heat exchanger of claim 3, wherein an included angle between the first fin portion and the third fin portion is α, and an included angle between the second fin portion and the third fin portion is β, wherein α and β respectively satisfy: alpha is more than or equal to 120 degrees and less than or equal to 150 degrees, and beta is more than or equal to 120 degrees and less than or equal to 150 degrees.

5. The heat exchanger according to claim 3, wherein the first fin portion and the second fin portion are each arranged obliquely with respect to a central axis of the straight pipe, and the third fin portion is perpendicular to the central axis of the straight pipe.

6. The heat exchanger of claim 2, wherein a side of the first fin portion remote from the second fin portion has a first cuff; and/or

And a second flanging is arranged on one side of the second fin part far away from the first fin part.

7. The heat exchanger according to any one of claims 1 to 6, wherein both side surfaces in a thickness direction of each of the heat exchange fins are a first surface and a second surface, respectively, at least a portion of each of the heat exchange fins protrudes from the first surface toward the second surface, and the at least a portion of each of the plurality of heat exchange fins protrudes toward the same end of the straight tube.

8. The heat exchanger according to claim 7, wherein one side of the fin group in the thickness direction of the heat exchange fins is provided with a first end plate which is adjacent to the second surfaces of the heat exchange fins, and the first end plate is provided with a shielding portion for shielding a portion of the heat exchange tube between the first end plate and one of the plurality of heat exchange fins which is closest to the first end plate.

9. The heat exchanger according to claim 8, wherein the other side of the fin group in the thickness direction of the heat exchange fins is provided with a second end plate, at least a portion of the second end plate penetrating the straight tubes being adapted to the shape of the heat exchange fins to define a second air flow passage between the second end plate and the closest one of the plurality of heat exchange fins to the second end plate.

10. An air conditioner characterized by comprising the heat exchanger according to any one of claims 1 to 9.

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