CN212132700U - Heat exchanger and air conditioner - Google Patents

Abstract

The utility model discloses a heat exchanger and an air conditioner, wherein the heat exchanger comprises a first heat exchange part and a second heat exchange part arranged at an included angle, and the first heat exchange part has a plurality of first fins The second heat exchange part has a plurality of second fins, and the distance between two adjacent first fins is smaller than the distance between two adjacent second fins. The technical scheme of the utility model can improve the uniformity of the air flow passing through all parts of the heat exchanger, so as to improve the overall heat exchange effect of the heat exchanger.

Description

Heat Exchangers and Air Conditioners

technical field

The utility model relates to the technical field of air conditioners, in particular to a heat exchanger and an air conditioner.

Background technique

In current air conditioners, such as split type air conditioners, the heat exchanger of the indoor unit is generally bent into a multi-fold structure. Due to the structural limitation of the heat exchanger or the installation position of the heat exchanger, the distribution of the airflow and wind speed passing through each bending area of the heat exchanger is quite different, and the whole heat exchanger cannot fully exert its overall heat exchange effect. The overall heat exchange effect of the device is poor.

Utility model content

The main purpose of the utility model is to propose a heat exchanger, which aims to improve the uniformity of the air flow through the heat exchanger, so as to improve the overall heat exchange effect of the heat exchanger.

In order to achieve the above purpose, the heat exchanger proposed by the present invention includes a first heat exchange part and a second heat exchange part arranged at an included angle, the first heat exchange part has a plurality of first fins, and the first heat exchange part has a plurality of first fins. The second heat exchange part has a plurality of second fins, and the distance between two adjacent first fins is smaller than the distance between two adjacent second fins.

Optionally, an interval between two adjacent first fins constitutes a first heat exchange air duct; an interval between two adjacent second fins constitutes a second heat exchange air duct; the The width of the first heat exchange air duct along its air inlet direction is smaller than the width of the second heat exchange air duct along its air inlet direction.

Optionally, the second heat exchange part has multiple rows of second heat exchange tubes sequentially distributed along its air inlet direction, and the number of rows of the second heat exchange tubes is more than that of the first heat exchange part on the first heat exchange part. The number of rows of heat exchange tubes.

Optionally, the first heat exchange portion has multiple rows of first heat exchange tubes distributed in sequence along its air inlet direction, and the second heat exchange portion has multiple rows of second heat exchange tubes sequentially distributed along its air intake direction. The number of rows of the second heat exchange tubes is the same as the number of rows of the first heat exchange tubes.

Optionally, the ratio of the distance between two adjacent first fins to the distance between two adjacent second fins is less than or equal to 0.8, and greater than or equal to 0.7.

Optionally, the distance between two adjacent second fins is greater than or equal to 1.2 mm and less than or equal to 1.3 mm.

Optionally, the heat exchanger further includes a third heat exchange part, the third heat exchange part is connected to a side of the second heat exchange part away from the first heat exchange part, and is connected with the first heat exchange part. The two heat exchange parts are arranged at an included angle, the third heat exchange part has a plurality of third fins, and the distance between two adjacent third fins is greater than the distance between two adjacent first fins distance between.

Optionally, the distance between two adjacent third fins is the same as the distance between two adjacent second fins.

The utility model also provides an air conditioner, a casing, a fan assembly and a heat exchanger, wherein the heat exchanger includes a first heat exchange part and a second heat exchange part arranged at an included angle, the first heat exchange part It has a plurality of first fins, the second heat exchange part has a plurality of second fins, and the distance between two adjacent first fins is smaller than that between two adjacent second fins the distance. The housing has an air duct, an air inlet and an air outlet communicating with the air duct, and the fan assembly and the heat exchanger are both arranged in the air duct.

Optionally, the air conditioner includes a wall-mounted unit, the wall-mounted unit has the casing, the fan assembly and the heat exchanger, the casing has a chassis and a front panel, and the first part of the heat exchanger is A heat exchange part is arranged between the fan assembly and the front panel; the second heat exchange part of the heat exchanger is connected to the side of the first heat exchange part close to the air inlet.

In the technical solution of the present invention, by setting the distance between two adjacent first fins to be smaller than the distance between two adjacent second fins in the second heat exchange part, the flow through the first fins can be reduced. The wind speed of the airflow in the heat exchange part is to increase the wind speed of the airflow passing through the second heat exchange part. Furthermore, when the heat exchanger is installed in the air conditioner, the heat exchanger can be installed according to the flow of the air flow in the air conditioner. For example, the first heat exchange part can be installed in the area of The heat exchange part is installed in the area of the air conditioner where the airflow velocity is small. Therefore, the air speed in the area with a large airflow velocity in the air conditioner can be reduced through the first heat exchange part, so that the air flow can be diverted to the second heat exchange part, so that more air flow through the second heat exchange part can be reduced. The difference in air flow velocity through the first heat exchange part and the second heat exchange part makes the air flow velocity in each area of the air conditioner relatively uniform, so that the first heat exchange part and the second heat exchange part can fully exert their heat exchange functions , which can improve the overall heat exchange effect of the heat exchanger. In addition, the noise generated by the airflow passing through the heat exchanger is also reduced due to the reduced airflow velocity.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained based on the structures shown in these drawings without any creative effort.

1 is a schematic structural diagram of an embodiment of the heat exchanger of the present invention and installed in an air conditioner;

FIG. 2 is a schematic structural diagram of the first heat exchange part in FIG. 1 viewed from a first direction;

FIG. 3 is a schematic structural diagram of the second heat exchange part in FIG. 1 viewed from a second direction;

4 is a schematic structural diagram of another embodiment of the heat exchanger of the present invention and installed in an air conditioner;

FIG. 5 is a noise curve diagram of the heat exchanger installed in the air conditioner under two embodiments of the utility model.

Description of reference numbers:

label name label name 100 Air conditioner 132 first heat exchange tube 110 case 133 The first hot air duct 111 air duct 140 Second heat exchange part 112 Inlet 141 second fin 113 air outlet 142 second heat exchange tube 114 chassis 143 Second hot air duct 115 front panel 150 The third heat exchange part 120 Fan assembly 151 third fin 130 The first heat exchange part 152 third heat exchange tube 131 first fin

The realization, functional characteristics and advantages of the purpose of the present utility model will be further described with reference to the accompanying drawings in conjunction with the embodiments.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, but not all of them. Example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for the purpose of description, and should not be construed as instructions or Implicit their relative importance or implicitly indicate the number of technical features indicated. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In addition, the meaning of "and/or" appearing in the whole text includes three parallel schemes, and taking "A and/or B as an example", it includes scheme A, scheme B, or scheme that A and B satisfy at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of such technical solutions does not exist. , is not within the scope of protection required by the present utility model.

The utility model proposes a heat exchanger for an air conditioner. The air conditioner can be a split type air conditioner or an integrated type air conditioner. When the air conditioner is a split type air conditioner, the heat exchanger can be used for an air conditioner indoor unit. Can also be used for air conditioner outdoor units.

In the embodiment of the present invention, as shown in FIG. 1 to FIG. 3 , the heat exchanger includes a first heat exchange part 130 and a second heat exchange part 140 arranged at an included angle, and the first heat exchange part 130 has a plurality of The first fin 131 and the second heat exchange part 140 have a plurality of second fins 141 , and the distance between two adjacent first fins 131 (refer to the mark H in FIG. 2 ) is smaller than that between two adjacent second fins 131 . The distance between the fins 141 (refer to the label L in FIG. 3 ).

In this embodiment, the first heat exchange part 130 also has a plurality of first heat exchange tubes 132 , the first heat exchange tubes 132 pass through the plurality of first fins 131 , and the plurality of first heat exchange tubes 132 extend along the first The directions are distributed and arranged in a row. The first direction is the direction in which one side connecting the first heat exchange part 130 and the second heat exchange part 140 points to the other opposite side, that is, the extension direction of the first direction and the first heat exchange tube 132 (that is, the arrangement direction of the plurality of first fins 131, refer to the direction indicated by the arrow Y1 in FIG. 2) is vertical, and is also vertical to the air inlet direction of the first heat exchange part 130 (for convenience of description, the first heat exchange The air inlet direction of the portion 130 is defined as the first air inlet direction, with reference to the direction indicated by the arrow X1 in FIG. 1 and FIG. 2 ).

The second heat exchange part 140 also has a plurality of second heat exchange tubes 142 , the second heat exchange tubes 142 pass through the plurality of second fins 141 , and the plurality of second heat exchange tubes 142 are distributed and arranged in a row along the second direction The second direction is the direction in which one side of the second heat exchange part 140 connected to the second heat exchange part 140 points to the other opposite side, that is, the second direction and the extension direction of the second heat exchange tube 142 (ie the plurality of first heat exchange tubes 142). The arrangement direction of the two fins 141 is perpendicular to the direction indicated by arrow Y2 in FIG. 3 ), and is also perpendicular to the air inlet direction of the second heat exchange portion 140 (for the convenience of description, the air inlet of the second heat exchange portion 140 is hereinafter referred to as the The direction is defined as the second air inlet direction, with reference to the direction indicated by arrow X2 in FIG. 1 and FIG. 3 ).

The first heat exchange part 130 and the second heat exchange part 140 are arranged at an angle, which is equivalent to the angle between the first air inlet direction and the second air inlet direction. When the heat exchanger is installed on the air conditioner 100, it can be The first heat exchange part 130 and the second heat exchange part 140 are enclosed on the air inlet side of the fan assembly 120 of the air conditioner 100 . The included angle between the first heat exchange part 130 and the second heat exchange part 140 is greater than or equal to 0° and less than or equal to 180°, which can be set according to the structure of the air conditioner 100 to be applied, which is not described in the present invention. limited.

When the heat exchanger is working, taking the first heat exchange part 130 as an example, the air flow circulates between the two adjacent first fins 131, so the distance between the two adjacent first fins 131 will affect the air flow. For example, when the distance between the two adjacent first fins 131 is large, the resistance of the airflow passing between the two adjacent first fins 131 is small, which can make more airflow from the phase It flows between two adjacent first fins 131, and the flow velocity of the airflow is also relatively large. However, when the distance between the two adjacent first fins 131 is small, the resistance of the airflow passing between the two adjacent first fins 131 is relatively large, so that the air flow from the space between the two adjacent first fins 131 is relatively large. There is less airflow passing through it, and the flow rate of the airflow is also smaller. Similarly, the airflow also circulates between two adjacent second fins 141 , and the distance between the two adjacent second fins 141 also affects the flow effect of the airflow, which will not be repeated here.

Therefore, in the technical solution of the present invention, the distance between two adjacent first fins 131 in the first heat exchange part 130 can be set to be smaller and smaller than the distance between two adjacent first fins 131 in the second heat exchange part 140 The distance between the two fins 141 can reduce the wind speed of the airflow passing through the first heat exchange part 130 so as to increase the wind speed of the airflow passing through the second heat exchange part 140 . Furthermore, when the heat exchanger is installed in the air conditioner, the heat exchanger can be installed according to the flow of the air in the air conditioner 100. The second heat exchange part 140 is installed in an area of the air conditioner 100 where the airflow velocity is small. Therefore, the wind speed in the air conditioner 100 can be reduced by the first heat exchange part 130 in the area where the air flow velocity is relatively large, so that the air flow can be diverted to the second heat exchange part 140, so that more air flows through the second heat exchange part 140, Therefore, the difference in air flow velocity between the first heat exchange part 130 and the second heat exchange part 140 can be reduced, so that the air flow velocity of each area in the air conditioner 100 is relatively uniform, so that the first heat exchange part 130 and the second heat exchange part 140 can be exchanged more uniformly. The part 140 can fully exert its heat exchange effect, and can improve the overall heat exchange effect of the heat exchanger. In addition, the noise generated by the airflow passing through the heat exchanger is also reduced due to the reduced airflow velocity.

In order to make the effect of changing the airflow and wind speed of the first heat exchange part 130 and the second heat exchange part 140 better, in one embodiment, the distance between two adjacent first fins 131 is the same as the distance between two adjacent second fins The ratio of the distances between the sheets 141 is less than or equal to 0.8 and greater than or equal to 0.7. It is equivalent to that the distance between two adjacent first fins 131 is 20% to 30% smaller than the distance between two adjacent second fins 141. Within this range, the first heat exchange part 130 and the second The combination of the second heat exchange part 140 has a better effect of adjusting the airflow speed in the air conditioner 100, making the airflow speed in each area of the air conditioner 100 more uniform, and can greatly improve the overall heat exchange effect of the heat exchanger. Of course, in other embodiments, the ratio of the distance between two adjacent first fins 131 to the distance between two adjacent second fins 141 may be greater than 0.8 or less than 0.7.

Further, in one embodiment, the distance between two adjacent second fins 141 is greater than or equal to 1.2 mm and less than or equal to 1.3 mm. When the distance between two adjacent second fins 141 is within this range, the distance between two adjacent first fins 131 is equal to the distance between two adjacent second fins 141 In the heat exchanger, the distribution of air flow through the first heat exchange part 130 and the second heat exchange part 140 is more uniform, and under the same air volume, the maximum air flow velocity is reduced by 0.22m/s, which can further reduce noise. Also, the heat exchange area of the first heat exchange part 130 and the second heat exchange part 140 is larger, the heat exchange effect of the first heat exchange part 130 and the second heat exchange part 140 can be fully exerted, and the overall heat exchange of the heat exchanger is improved. thermal effect. Wherein, the distance between two adjacent second fins 141 may be 1.20mm, 1.21mm, 1.22mm, 1.23mm, 1.24mm, 1.25mm, 1.26mm, 1.27mm, 1.28mm, 1.29mm, 1.3mm, etc. . The distance between two adjacent first fins 131 may be 0.84mm, 0.86mm, 0.91mm, 0.94mm, 0.96mm, 1mm, 1.04mm, and the like. For example, when the distance between two adjacent second fins 141 is 1.3 mm, and the distance between two adjacent first fins 131 is 1 mm, compared with the distance between two adjacent first fins 131 For a heat exchanger whose distance is equal to the distance between two adjacent second fins 141, under the same air volume, the maximum airflow velocity through the heat exchanger is reduced by 0.22 m/s. Of course, in other embodiments, the distance between two adjacent second fins 141 may also be less than 1.2 mm, or greater than 1.3 mm.

It can be understood that, in the air conditioner 100, due to the limitation of the size of the air conditioner 100, a part of the internal space of the air conditioner 100 is small. In order to enable the heat exchanger to be better installed in the air conditioner 100, in one embodiment, adjacent The interval between the two first fins 131 constitutes the first heat exchange air channel 133 ; the interval between two adjacent second fins 141 constitutes the second heat exchange air channel 143 . The width of the first heat exchange air duct 133 along its air intake direction is smaller than the width of the second heat exchange air duct 143 along its air intake direction. That is, the width of the first heat exchange air duct 133 along the first air intake direction is smaller than the width of the second heat exchange air duct 143 along the second air intake direction, which is equivalent to the thickness of the first heat exchange portion 130 along the first air intake direction less than The thickness of the second heat exchange part 140 along the second air inlet direction, so that when the heat exchanger is installed in the air conditioner 100 , the first heat exchange part 130 can be installed in a part of the air conditioner 100 with a small space. Although the width of the first heat exchange air duct 133 is smaller than the width of the second heat exchange air duct 143 , since the distance between two adjacent first fins 131 is smaller than the distance between two adjacent second fins 141 , it is possible to To avoid the situation where the width of the first heat exchange air duct 133 becomes smaller, which leads to the reduction of the airflow resistance of the first heat exchange portion 130, the airflow flow resistance of the first heat exchange air duct 133 and the second heat exchange air duct 143 can be guaranteed. It is relatively close, so that the distribution of the airflow flowing through the first heat exchange part 130 and the second heat exchange part 140 is more uniform, and the overall heat exchange effect of the heat exchanger is improved.

Among them, in order to improve the space utilization rate in the first heat exchange air duct 133, in one embodiment, the second heat exchange part 140 has multiple rows of second heat exchange tubes 142 distributed in sequence along the air inlet direction. The number of rows of the tubes 142 is greater than the number of rows of the first heat exchange tubes 132 on the first heat exchange part 130 . That is, multiple rows of second heat exchange tubes 142 are arranged along the second air inlet direction, and each row of second heat exchange tubes 142 is composed of a plurality of second heat exchange tubes 142 distributed along the second direction. By arranging multiple rows of second heat exchange tubes 142 , the space utilization rate of the second heat exchange air duct 143 is improved, and the heat exchange area of the second heat exchange part 140 is also increased, so that the exchange rate of the second heat exchange part 140 can be improved. thermal effect. The number of rows of the second heat exchange tubes 142 may be two, three, or four, and the number of rows of the first heat exchange tubes 132 may be one or more rows. For example, in one embodiment, the number of rows of the second heat exchange tubes 142 is two rows (refer to FIG. 4 ), and the number of rows of the first heat exchange tubes 132 is one row, so as to ensure that the heat exchanger has a larger The heat exchange area ensures the heat exchange effect, and also ensures that the heat exchanger as a whole can be normally installed in the air conditioner 100 . Wherein, when multiple rows of second heat exchange tubes 142 are provided, the second fins 141 include a plurality of heat dissipation sections distributed along the second air intake direction, each row of heat exchange tubes is penetrated through a heat dissipation section, wherein the plurality of heat dissipation sections Segments can be set as one piece or separately. In addition, in other embodiments, only one row of second heat exchange tubes 142 may be provided, so that the width of the second fins 141 along the second air inlet direction is greater than the width of the first fins 131 along the first air inlet direction .

In addition, in an embodiment, the width of the first heat exchange air duct 133 along the first air inlet direction may be the same as the width of the second heat exchange air duct 143 along the second air inlet direction. The portion 130 has multiple rows of first heat exchange tubes 132 that are sequentially distributed along its air intake direction, that is, the multiple rows of first heat exchange tubes 132 are arranged along the first air intake direction, and each row of the first heat exchange tubes 132 is formed by It is composed of a plurality of first heat exchange tubes 132 distributed in the first direction, and the number of rows of the second heat exchange tubes 142 is the same as that of the first heat exchange tubes 132 . In this way, the heat exchange area of the first heat exchange part 130 can be increased, so that the heat exchange effect of the first heat exchange part 130 can be improved. The number of rows of the first heat exchange tubes 132 may be two rows, three rows, or four rows, etc. For example, in an embodiment, the number of rows of the first heat exchange tubes 132 is two rows, and the rows of the second heat exchange tubes 142 are two rows. The number is also two rows, so that the second heat exchange part 140 can also be installed in the area of the air conditioner 100 where the airflow velocity is larger, and compared with the number of rows of the second heat exchange tubes 142 is two rows, the first heat exchange part 140 can be installed in the air conditioner 100. The number of rows of the heat pipes 132 is one row. In this embodiment, the airflow velocity can be further reduced, and the maximum airflow velocity is reduced by 0.21 m/s. Of course, in other embodiments, only one row of the first heat exchange tubes 132 may be provided, so that the width of the first fins 131 along the first air inlet direction and the width of the second fins 141 along the second air inlet direction same.

In one embodiment, the heat exchanger further includes a third heat exchange part 150 , the third heat exchange part 150 is connected to a side of the second heat exchange part 140 away from the first heat exchange part 130 , and is connected to the second heat exchange part 140 Arranged at an included angle, the third heat exchange portion 150 has a plurality of third fins 151 , and the distance between two adjacent third fins 151 is greater than the distance between two adjacent first fins 131 . By arranging the third heat exchange part 150, the heat exchanger can be better enclosed on the side of the fan assembly 120 of the air conditioner 100, and it is also beneficial to increase the heat exchange area of the heat exchanger and improve the heat exchange of the heat exchanger Effect. The distance between two adjacent third fins 151 is greater than the distance between two adjacent first fins 131, so that when the heat exchanger is installed in the air conditioner, the first heat exchange part 130 can be installed In the area of the air conditioner 100 where the airflow velocity is high, the second heat exchange part 140 and the third heat exchange part 150 are both installed in the area of the air conditioner 100 where the airflow velocity is low, so that the first heat exchange part 130 can pass through the air conditioner 100 . Decrease the wind speed in the area where the airflow velocity is larger in the air conditioner 100, so as to increase the airflow through the second heat exchange part 140 and the third heat exchange part 150, so as to reduce the airflow velocity difference in each area in the air conditioner 100, so that The air flow velocity of each area in the air conditioner 100 is relatively uniform, which can improve the overall heat exchange effect of the heat exchanger. In addition, in other embodiments, the heat exchanger may further include a fourth heat exchange part, the fourth heat exchange part is connected to the side of the third heat exchange part 150 away from the second heat exchange part 140 and is connected with the third heat exchange part The portion 150 is arranged at an included angle. The heat exchanger may also include a fifth heat exchange section and the like.

In one embodiment, the distance between two adjacent third fins 151 is the same as the distance between two adjacent second fins 141 . In this way, the air flow velocity between the third heat exchange part 150 and the second heat exchange part 140 can be relatively uniform. The interval between two adjacent third fins 151 constitutes a third heat exchange air duct, and the width of the third heat exchange air duct along its air inlet direction is the same as the width of the second heat exchange air duct 143 along its air inlet direction. The third heat exchange part 150 also has multiple rows of third heat exchange tubes 152 distributed in sequence along the air inlet direction.

In one embodiment, the number of rows of the first heat exchange tubes 132 is one row, the number of rows of the second heat exchange tubes 142 and the number of rows of the third heat exchange tubes 152 are two rows, and the number of rows between two adjacent first fins 131 is two. The distance is 1 mm, the distance between two adjacent second fins 141 and the distance between two adjacent third fins 151 are both 1.3 mm. Compared with the solution in which the distance between two adjacent first fins 131 , the distance between two adjacent second fins 141 and the distance between two adjacent third fins 151 are the same, In the case where the velocity of the airflow passing through the first heat exchange part 130, the second heat exchange part 140 and the third heat exchange part 150 is 2.42 m/s, 1.59 m/s and 1.24 m/s, respectively. In this setting, the speed of the airflow passing through the first heat exchange part 130 is 2.03m/s, the speed of the airflow passing through the second heat exchange part 140 is 1.76m/s, and the speed of the airflow passing through the third heat exchange part 150 is 1.29m/s s, so that the speed of the airflow passing through the first heat exchange part 130 , the second heat exchange part 140 and the third heat exchange part 150 is more uniform.

In another embodiment, as shown in FIG. 4 , the number of rows of the first heat exchange tubes 132 , the second heat exchange tubes 142 and the third heat exchange tubes 152 are all two rows, and the number of rows between the adjacent two first fins 131 is two rows. The distance between them is 1 mm, the distance between two adjacent second fins 141 and the distance between two adjacent third fins 151 are both 1.3 mm. Compared with the case where the number of rows of the first heat exchange tubes 132 is one row, the number of rows of the second heat exchange tubes 142 and the number of rows of the third heat exchange tubes 152 are both two rows. The velocities of the heat exchange part 130, the second heat exchange part 140 and the third heat exchange part 150 are respectively 1.99m/s, 1.69m/s and 1.31m/s, so that the airflow passes through the first heat exchange part 130 and the second heat exchange part 150. The speed of the part 140 and the third heat exchange part 150 is more uniform. Moreover, the noise can be reduced after the maximum air velocity is reduced. Referring to Figure 5, the noise can be reduced by 1dB(A) under the same air volume. In FIG. 5 , A1 and A2 indicate that the number of rows of the first heat exchange tubes 132 is one row, and the number of rows of the second heat exchange tubes 142 and the third heat exchange tubes 152 is two rows, two air conditioners with the same structure 100 of the air volume noise curve, B1 and B2 represent the air volume noise of two air conditioners 100 with the same structure when the number of rows of the first heat exchange tube 132, the second heat exchange tube 142 and the third heat exchange tube 152 are all two rows. curve.

The present invention also proposes an air conditioner 100 (refer to FIG. 1 or FIG. 4 ). The air conditioner 100 includes a housing 110 , a fan assembly 120 and a heat exchanger. The specific structure of the heat exchanger refers to the above-mentioned embodiment. The air conditioner 100 adopts all the technical solutions of all the above-mentioned embodiments, and therefore at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here. The housing 110 has an air duct 111, and an air inlet 112 and an air outlet 113 connected to the air duct 111. The fan assembly 120 and the heat exchanger are both arranged in the air duct 111, and the heat exchanger is enclosed in the fan assembly 120 and faces away from the air outlet. 113 side. In this way, after the airflow enters from the air inlet 112 , it can flow to the fan assembly 120 through the heat exchanger, and finally blow out from the air outlet 113 .

In one embodiment, the air conditioner 100 includes a wall-mounted unit, the wall-mounted unit has a casing 110, a fan assembly 120 and a heat exchanger, the casing 110 has a chassis 114 and a front panel 115, and the first heat exchange part 130 of the heat exchanger is provided at Between the fan assembly 120 and the front panel 115 ; the second heat exchange part 140 of the heat exchanger is connected to the side of the first heat exchange part 130 close to the air inlet 112 . Wherein, the chassis 114 and the front panel 115 are respectively disposed on two opposite sides of the air duct 111 , and the chassis 114 is used to be installed on the wall. When the number of rows of the first heat exchange tubes 132 of the first heat exchange part 130 is one row, the thickness of the first heat exchange part 130 along the first air inlet direction can be made smaller, and the first heat exchange part 130 can be better installed on the fan assembly 120 and the front panel 115, it is beneficial to reduce the thickness of the wall-mounted chassis 114 and the front panel 115 in the arrangement direction. Of course, in another embodiment, the first heat exchange parts 130 may also be arranged in multiple rows.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any equivalent structural transformations made by using the contents of the description and drawings of the present invention under the inventive concept of the present invention, or Direct/indirect applications in other related technical fields are included in the scope of patent protection of the present invention.

Claims (10)

1. The utility model provides a heat exchanger, its characterized in that, is including being first heat transfer portion and the second heat transfer portion that the contained angle set up, first heat transfer portion has a plurality of first fins, second heat transfer portion has a plurality of second fins, adjacent two distance between the first fin is less than adjacent two distance between the second fin.

2. The heat exchanger of claim 1, wherein the space between two adjacent first fins forms a first heat exchange air duct; a second heat exchange air channel is formed between every two adjacent second fins at intervals; the width of the first heat exchange air channel along the air inlet direction is smaller than that of the second heat exchange air channel along the air inlet direction.

3. The heat exchanger as claimed in claim 2, wherein the second heat exchange portion has a plurality of rows of second heat exchange tubes arranged in sequence along the air intake direction thereof, and the number of rows of the second heat exchange tubes is greater than that of the rows of the first heat exchange tubes on the first heat exchange portion.

4. The heat exchanger of claim 1, wherein the first heat exchange portion has a plurality of rows of first heat exchange tubes arranged in series along the air inlet direction thereof, and the second heat exchange portion has a plurality of rows of second heat exchange tubes arranged in series along the air inlet direction thereof, the number of rows of the second heat exchange tubes being the same as the number of rows of the first heat exchange tubes.

5. The heat exchanger of claim 1, wherein the ratio of the distance between two adjacent first fins to the distance between two adjacent second fins is less than or equal to 0.8 and greater than or equal to 0.7.

6. The heat exchanger of claim 5, wherein the distance between two adjacent second fins is greater than or equal to 1.2mm and less than or equal to 1.3 mm.

7. The heat exchanger according to any one of claims 1 to 6, further comprising a third heat exchanging portion connected to a side of the second heat exchanging portion away from the first heat exchanging portion and arranged at an angle to the second heat exchanging portion, wherein the third heat exchanging portion has a plurality of third fins, and a distance between two adjacent third fins is greater than a distance between two adjacent first fins.

8. The heat exchanger of claim 7, wherein a distance between adjacent two of the third fins is the same as a distance between adjacent two of the second fins.

9. An air conditioner, characterized in that, includes a shell, a fan assembly and the heat exchanger of any one of claims 1 to 8, the shell has an air duct, and an air inlet and an air outlet which are communicated with the air duct, the fan assembly and the heat exchanger are both arranged in the air duct.

10. The air conditioner of claim 9, wherein the air conditioner includes a wall-mounted unit having the housing, the fan assembly, and the heat exchanger, the housing having a base pan and a front panel, the first heat exchange portion of the heat exchanger being disposed between the fan assembly and the front panel; and the second heat exchange part of the heat exchanger is connected to one side of the first heat exchange part, which is close to the air inlet.

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