CN105091086A - Air conditioner - Google Patents

Abstract

The present invention discloses an air conditioner which comprises an indoor unit body and a heat exchanger formed inside the indoor unit body. A mixed air outlet and a non-heat-exchange air inlet are formed in the indoor unit body, and an air feeding device communicated with the non-heat-exchange air inlet and the mixed air outlet is formed in the indoor unit body. Two cross flow fans are further formed in the indoor unit body, an isosceles triangle is formed by the axis projection points of the two cross flow fans and the axis projection point of the air feeding device on the section perpendicular to the axis of the air feeding device, and the axis projection point of the air feeding device is the vertex of the isosceles triangle. Through the application of the air conditioner, the problem that an air feeding device for increasing air volume and improving the gentleness of outlet air is difficult to arrange additionally on an existing air conditioner with a mounting part can be solved.

Description

air conditioner

technical field

The invention belongs to the technical field of air conditioning, and in particular relates to an air conditioner.

Background technique

Existing wall-mounted air conditioners or ceiling-mounted air conditioners and other air conditioners with installation parts are blown out from the air outlet on the air conditioner directly under the action of the internal fan after heat exchange by the heat exchanger. It is heat exchange wind. Generally, no additional air supply device is provided between the heat exchanger and the air outlet. One disadvantage of this kind of air supply is that the air sent out is all heat exchange air, the air volume is small, and the indoor air circulation speed is slow; another disadvantage is that the air sent out is not soft enough, especially in the cooling mode, the cool air blown out The wind blows directly on the user, and the user feels uncomfortable.

In addition, existing air conditioners with installation parts generally use cross-flow fans, and the positional relationship between the cross-flow fans and the air outlets determines that it is difficult to install additional air supply devices therein.

Contents of the invention

The purpose of the present invention is to provide an air conditioner to solve the problem that it is difficult to install an additional air supply device in the existing air conditioner with an installation part to increase the air volume and improve the softness of the air.

In order to achieve the above-mentioned purpose of the invention, the present invention adopts the following technical solutions to achieve:

An air conditioner, comprising an indoor unit body and a heat exchanger formed inside the indoor unit body, a mixed air outlet and a non-heat exchange air inlet are formed on the indoor unit body, and a An air supply device that communicates with the non-heat exchange air inlet and the mixed air outlet, the air supply device includes at least two air guide bodies that pass through the middle and have front and rear openings, and the at least two air guide bodies are sequentially Arranged in the middle to form a through-flow passage through the front and back, and a heat exchange air passage is formed between two adjacent air guide bodies; two cross-flow fans are also formed in the indoor unit body, which are perpendicular to the air supply On the cross-section of the axis of the wind device, the axis projection points of the two cross-flow fans and the axis projection point of the air supply device form an isosceles triangle, and the axis projection point of the air supply device is the point of the isosceles triangle vertex.

As for the above-mentioned air conditioner, the base angle of the isosceles triangle is not greater than 75°.

Preferably, the base angle of the isosceles triangle is 60°.

In the above-mentioned air conditioner, the axes of the two cross-flow fans are parallel to each other, and are respectively parallel to the axes of the air supply device. The perpendicular line of the two cross-flow fans to the axis of the air supply device is The axis of symmetry is left-right symmetrical.

In the above air conditioner, a mounting portion is formed on the indoor unit body, and the axes of each cross-flow fan and the air blower are perpendicular to the mounting surface of the mounting portion.

In the above-mentioned air conditioner, an air duct volute is formed in the indoor unit body, the cross-flow fan is arranged at the air inlet of the air duct formed by the air duct volute, and the air supply device is arranged at the The air outlet of the air duct formed by the air duct volute.

According to the above air conditioner, the air supply device is at least partially located inside the air outlet of the air duct formed by the air duct volute.

In the above-mentioned air conditioner, the mixed air outlet is formed on the front of the indoor unit body, the non-heat exchange air inlet is formed on the back of the indoor unit body, and the side surface of the indoor unit body is formed with The main air inlet, the cross-flow fan is arranged adjacent to the main air inlet.

In the above-mentioned air conditioner, the main air inlet includes a left main air inlet and a right main air inlet respectively formed on the left side and the right side of the indoor unit body, and the heat exchanger includes a The left heat exchanger between the left main air inlet and the first cross-flow fan of the two cross-flow fans and the heat exchanger formed between the right main air inlet and the two cross-flow fans The right heat exchanger between the second cross-flow fans, the left main air inlet and the right main air inlet are left and right symmetrical with the vertical line of the axis of the air supply device as the axis of symmetry, and the left heat exchanger The heat exchanger and the right side heat exchanger are also left-right symmetrical with this axis as the axis of symmetry.

Compared with the prior art, the advantages and positive effects of the present invention are: the present invention sets the cross-flow fan and the air supply device for the indoor unit of the air conditioner with the installation part, and adopts the axial projection point of the cross-flow fan and the air supply device The axis projection points are arranged in an isosceles triangle, which conveniently realizes the purpose of installing an additional air supply device on the indoor unit with the installation part, and is beneficial to the uniform, effective and stable air supply of the air supply device. Moreover, by installing an air supply device in the indoor unit of the air conditioner, the heat exchange air in the internal air duct of the air conditioner is blown out through the front end of the air duct by using the air supply device, and at the same time, the negative pressure can be used to suck in non-heat-exchanged air outside the part. The heat exchange wind participates in the final air outlet of the air conditioner, which increases the overall air intake of the air conditioner, speeds up the flow of indoor air, and further improves the overall uniformity of indoor air. Moreover, such mixed air is relatively soft, and the user will feel more comfortable when it is blown on the body, which improves the comfort experience effect of the user. Therefore, the air supply performance of this type of air conditioner is improved.

Other characteristics and advantages of the present invention will become clearer after reading the detailed description of the present invention in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is one of perspective views of the air conditioner embodiment of the present invention;

Fig. 2 is the second perspective view of the air conditioner embodiment of the present invention;

Fig. 3 is the front view of the air conditioner embodiment of the present invention;

Fig. 4 is a side view of an embodiment of the air conditioner of the present invention;

Fig. 5 is the rear view of the air conditioner embodiment of the present invention;

Fig. 6 is B-B ' direction sectional view among Fig. 4;

Fig. 7 is A-A' direction sectional view among Fig. 3;

Fig. 8 is a perspective view of the heat exchanger and the main air inlet in Fig. 6;

Fig. 9 is an enlarged view of the heat exchanger and the main air inlet in Fig. 6 .

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

First of all, a brief description of the technical terms involved in this specific embodiment: when referring to the front or back of each structural component, it is defined by the position of the structural component relative to the user under normal use ; When describing the arrangement position of multiple structural parts before or after, it is also the definition of the position of the device composed of multiple structural parts relative to the user in the normal use state. The following heat exchange wind refers to the wind from the inside of the air conditioner after heat exchange by the heat exchanger; the non-heat exchange wind refers to the wind from the environment space where the air conditioner is located, which is relative to the heat exchange wind and does not directly come from The wind of the heat exchanger; the mixed wind refers to the wind formed by mixing the heat exchange wind and the non-heat exchange wind.

Please refer to an embodiment of the air conditioner of the present invention shown in FIG. 1 to FIG. 9 .

As shown in the perspective views of FIG. 1 and FIG. 2 , the air conditioner of this embodiment includes an indoor unit body 100 . Specifically, the indoor unit body 100 includes a front shell 1 and a rear shell 2, which are connected in a detachable manner. Preferably, the orthographic projections of the front shell 1 and the rear shell 2 are both circular, that is, the outline 11 of the front shell and the outline of the rear shell (not marked in the figure) are both circular, so that the entire indoor unit body 100 The orthographic projection is also circular, as shown in the front view of FIG. 3 and the rear view of FIG. 5 . Therefore, the entire indoor unit has a unique and beautiful appearance, which meets the individual aesthetic needs of users. However, the orthographic projection of the indoor unit body 100 is not limited to a circle, and may also be a polygon with more than 4 sides, and preferably a regular polygon with more than 4 sides, such as a regular hexagon, a regular octagon, and the like.

In this embodiment, the rear shell 2 is the main part of the indoor unit body 100, the thickness of which is greater than that of the front shell 1, and the main body of the rear shell 2 is in a cylindrical structure, and a large accommodation space is enclosed in the middle for accommodating, Arrange other components of the indoor unit, such as heat exchangers, cross-flow fans, etc. For specific components and arrangement structures, refer to the subsequent description.

The rear case 2 has a mounting portion 21 , and the mounting portion 21 has a mounting surface 211 . The indoor unit of the air conditioner in this embodiment can be installed on the wall through the installation part 21 to form a wall-mounted air conditioner; it can also be installed on the roof through the installation part 21 to form a ceiling-mounted air conditioner. Moreover, after the indoor unit of the air conditioner is installed, the installation surface 211 will be attached to or close to the wall or the roof.

A non-heat exchange air inlet 22 is formed on the rear shell 2, that is, the back of the indoor unit body 100, and a mixed air outlet 13 is formed on the front shell 1, that is, the front of the indoor unit body 100, and is non-heat exchange. The air inlet 22 and the mixed air outlet 13 correspond to each other in position, and both are circular. Inside the indoor unit body 100 , that is, in the space surrounded by the front shell 1 and the rear shell 2 , an air supply device 3 is provided, and the non-heat exchange air inlet 22 and the mixed air outlet 13 communicate through the air supply device 3 . As shown in the side view of FIG. 4 , a main air inlet is formed on the cylindrical side wall of the rear shell 2 , that is, on the side of the indoor unit body 100 , for the cross-flow fan installed in the indoor unit body 100 . Inhale external wind under action. Specifically, the main air inlets include a first main air inlet 23 formed on the left side wall of the rear case 2 and a second main air inlet 24 formed on the right side wall.

6 and 7, wherein, FIG. 6 is a sectional view along the direction B-B' in FIG. 4, that is, a sectional view perpendicular to the axis of the air supply device 3, and FIG. 7 is a sectional view along the direction A-A' in FIG. 3. The air supply device 3 includes four air guide bodies arranged in sequence from front to back, namely a front air guide body 31 , a first middle air guide body 32 , a second middle air guide body 33 and a rear end air guide body 34 . The four air guiding bodies arranged in sequence front and back are all ring-shaped. Among them, the front air guide body 31 is connected in the middle and has two front and rear openings, which are respectively the mixed air outlet and the air inlet (not marked in the figure); The air outlet and air inlet (not marked in the figure); the second middle air guide body 33 runs through the middle and has two openings at the front and back, which are respectively the air outlet and the air inlet (not marked in the figure); the rear end air guide body 34 runs through the middle, There are two front and rear openings, which are the air outlet and the non-heat exchange air inlet (not marked in the figure). After the front-end air guide body 31, the first middle air guide body 32, the second middle air guide body 33, and the rear end air guide body 34 are arranged in sequence, a through air channel that runs through all four air guide bodies front and back is formed in the middle (in the figure not marked). Moreover, a first heat exchange air duct 35 is formed between the front end air guide body 31 and the first intermediate air guide body 32, and a second heat exchange air channel 35 is formed between the first intermediate air guide body 32 and the second intermediate air guide body 33. The exchange air channel 36 ; a third annular heat exchange air channel 37 is formed between the second middle air guide body 33 and the rear end air guide body 34 . Moreover, the three heat exchange air ducts are all ring-shaped.

After the air supply device 3 with the above-mentioned structure is installed in the indoor unit body 100, when the indoor unit is running, under the action of the cross-flow fan, the indoor air enters the indoor unit body 100 through the first main air inlet 23 and the second main air inlet 24. Inside, and accelerate blowing to the heat exchanger for heat exchange. After the heat exchange, the heat exchange air blows to the air supply device 3, and enters the through air channel through the first heat exchange air channel 35, the second heat exchange air channel 36 and the third heat exchange air channel 37, and then passes through the through air channel. The air duct is blown out from the mixed air outlet on the front air guiding body 31 and the mixed air outlet 13 on the front shell 1 . As the speed of the heat exchange air blown from each heat exchange air channel increases, the surface pressure of the corresponding air guiding body decreases and a negative pressure is formed in the through air channel. The external indoor air is used as non-heat exchange air, and under the action of negative pressure, it enters the through air passage from the non-heat exchange air inlet 22 on the rear shell 2 and the non-heat exchange air inlet of the rear air guide body 34, and is connected with The heat exchanging air blown out by the heat exchanging air duct forms a mixed air and then is sent to the room together.

After adopting the air supply device 3, while the heat exchange air is blown out through the front end of the through-air duct, part of the external non-heat exchange air that has not been heat exchanged can be sucked in to participate in the final air outlet of the air conditioner. The user will feel more comfortable on the body, which improves the user comfort experience effect. Moreover, the negative pressure generated by the air supply device 3 is used to inhale part of the external unheated wind to participate in the final air outlet of the air conditioner, which increases the overall air intake of the air conditioner, speeds up the flow of indoor air, and further improves the indoor air quality. The overall uniformity of the air.

For the indoor unit provided with the air supply device 3, due to the wall-mounted or ceiling-mounted installation, the volume cannot be too large, otherwise, it will not be selected by the user due to the limitation of the installation space or the influence on the overall layout of the room. For this reason, need to make corresponding improvement design to the structure of this indoor unit. Specifically, it is necessary to make adaptive design for the evaporator, cross-flow fan, air duct, air inlet and outlet of the indoor unit. For a more specific structure, please refer to the description below.

Referring to Fig. 6 and Fig. 7, combined with Fig. 1 to Fig. 5, in this embodiment, two cross-flow fans are arranged in the indoor unit body 100, which are the first cross-flow fan 41 and the second cross-flow fan 41 respectively. Flow fan 42. The axis of the air blower 3 is perpendicular to the installation surface 211 of the installation portion 21 , and the axes of the first cross-flow fan 41 and the second cross-flow fan 42 are also perpendicular to the installation surface 211 . That is, in this embodiment, the air supply device 3 is arranged along the direction from the front shell 1 to the rear shell 2, that is, the thickness direction of the indoor unit body 100, and the first cross-flow fan 41 and the second cross-flow fan 42 are also arranged along the The thickness direction of the indoor unit body 100 is set. Furthermore, the axis of the blower 3 , the axis of the first cross-flow fan 41 , and the axis of the second cross-flow fan 42 are parallel to each other.

By setting in this way, the length of the cross-flow fan becomes smaller, which can effectively reduce the volume of the entire indoor unit body 100 . However, by increasing the diameter of the cross-flow fan and using two cross-flow fans, the air supply performance will not be affected.

In order to ensure the uniformity of air supply, the first cross-flow fan 41 and the second cross-flow fan 42 are symmetrically arranged with the vertical line of the axis of the air supply device 3 as the axis of symmetry. That is, in FIG. 6 , the first cross-flow fan 41 and the second cross-flow fan 42 are bilaterally symmetrical with the straight line L where the diameter of the circular mixed air outlet 13 in the vertical direction is located as the axis of symmetry.

The first cross-flow fan 41 corresponds to the first main air inlet 23, and a first heat exchanger 61 is arranged between the two; the second cross-flow fan 42 corresponds to the second main air inlet 24, and between the two A second heat exchanger 62 is arranged between them. Therefore, a suction structure is formed, which can effectively reduce the noise of the indoor unit. Moreover, the first main air inlet 23 and the second main air inlet 24 are left-right symmetrical with the straight line L as the axis of symmetry, and the first heat exchanger 61 and the second heat exchanger 62 are also left-right symmetrical with the straight line L as the axis of symmetry.

In this embodiment, the first cross-flow fan 41 and the second cross-flow fan 42 are left-right symmetrical with the straight line L as the axis of symmetry, and, in the sectional view shown in FIG. 6 , the axis projection point O1 of the first cross-flow fan 41 The axis projection point O2 of the second cross-flow fan 42 and the axis projection point O3 of the air blower 3 form an isosceles triangle, and the axis projection point O3 of the air blower 3 is the apex of the isosceles triangle. Moreover, in the formed isosceles triangle, its base angle is α, and the degree of α is not more than 75°. Preferably, the degree of α is 60°, that is, an equilateral triangle is formed. Therefore, the formation of the air inlet air path and the air outlet air path of the entire indoor unit can be made more smoothly, which is beneficial to air suction and air supply, and the air supply noise is low.

Corresponding to the two cross-flow fans provided, a first air duct 51 and a second air duct 52 are also provided in the indoor unit body 100 . Specifically, the first air duct 51 and the second air duct 52 are also left-right symmetrical with the straight line L as the axis of symmetry. The first cross-flow fan 41 is arranged at the air inlet of the first air duct 51, the second cross-flow fan 42 is arranged at the air inlet of the second air duct 52, and the air blower 3 is arranged at the first air duct 51 and the second air duct 51. At the air outlet of the second air duct 52.

Specifically, in the sectional view shown in FIG. 6 , the first air duct 51 includes a first volute 511 and a second volute 512 , and the second air duct 52 includes a first volute 521 and a second volute 522 . The first volute 511 serves as the rear volute of the first air channel 51 and forms a "herringbone" shape structure with the first volute 521 as the rear volute of the second air channel 52 . The rear volute tongue portion 5111 in the first volute case 511 and the rear volute tongue portion 5211 of the first volute case 521 are separated from each other, forming two branch ends of a “herringbone” shape structure; and the first volute case 511 is opposite to the rear volute portion The first volute top 5112 of the tongue 5111 and the first volute 521 overlap with the first volute top 5212 of the rear volute tongue 5211 to form the top of a "herringbone" shape. Wherein, the top of the "herringbone"-shaped structure is adjacent to or against the air supply device 3 , preferably against the air supply device 3 . Therefore, the winds in the two air ducts are independent air ducts before entering the air supply device 3 , so as to avoid the mixing of the winds in the two air ducts to generate noise. Preferably, the first volute 511 and the first volute 521 are of an integral structure.

The second volute 512 opposite to the first volute 511 is used as the front volute of the first air duct 51, and the first end 5121 of the second volute will extend from the branch end to the top of the "herringbone" structure, That is, it extends from bottom to top in FIG. 6 . Preferably, the first end 5121 of the second volute extends to the outline of the front casing 1 and the rear casing 2 . Similarly, the second volute 522 opposite to the first volute 521 serves as the front volute of the second air channel 52 , and the first end 5221 of the second volute also extends from bottom to top. Preferably, the first end 5221 of the second volute extends to the outline of the front casing 1 and the rear casing 2 . As a more preferred embodiment, the first end 5121 of the second volute and the first end 5221 of the second volute form a structure that gradually expands relative to the axis of the "herringbone" structure, that is, the straight line L in FIG. It extends from bottom to top and forms a fan-shaped area 53 with the outlines of the front case 1 and the rear case 2 . The blower 3 is formed in the middle of the fan-shaped area 53 . Therefore, with the help of the first air duct 51 and the second air duct 52, the first cross-flow fan 41 and the second cross-flow fan 42 can exchange heat after the heat exchange between the first heat exchanger 61 and the second heat exchanger 62. The wind is blown steadily and evenly to the air supply device 3, and then sent out through the air supply device 3. Thereby, not only the air supply performance of the air conditioner can be guaranteed, but also a stable and continuous negative pressure zone can be ensured to be formed in the air supply device 3, and the non-heat-exchange air and heat-exchange air introduced from the outside can be mixed into mixed air and sent out together, further Improve the air supply performance of the air conditioner.

For the case where the first end 5121 of the second volute and the first end 5221 of the second volute do not extend upwards to the contour line of the front shell 1 and the rear shell 2, the air supply device 3 is still arranged on the first air duct 51 and the second air duct 51. At the air outlets of the air ducts 52, and preferably the air supply device 3 is partly or entirely located inside the air outlets of the two air ducts.

The end opposite to the first end 5121 of the second volute on the second volute 512, that is, the end away from the air supply device 3 is the second volute tongue portion 5122, and the second volute tongue portion 5122 faces the first volute. The cross-flow fan 41 is extended to form its volute tongue. As a more preferred embodiment, the end of the volute portion 5122 of the second volute continues to extend toward the rear first heat exchanger 61 and wraps part of the first heat exchanger 61 . Similarly, the end of the second volute 522 opposite to the first end 5221 of the second volute, that is, the end away from the air supply device 3 is the second volute tongue portion 5222, and the second volute tongue portion 5222 It extends toward the second cross-flow fan 42 to form its volute tongue. As a more preferred embodiment, the end of the second volute tongue portion 5222 continues to extend toward the rear second heat exchanger 62 and wraps part of the second heat exchanger 62 .

Further, in this embodiment, in order to ensure that the wind sent to the air supply device 3 through the first air channel 51 and the second air channel 52 can enter the air evenly in the circumferential direction of the air supply device 3, the air supply device An air distribution assembly 38 is arranged in at least one heat exchange air duct of the air duct 3. Preferably, in this embodiment, an air distribution assembly 38 is provided in each of the three heat exchange air ducts of the air supply device 3 . Specifically, referring to Fig. 2, Fig. 6 and Fig. 7, the air distribution assembly 38 includes a first air distribution plate 381 and a second air distribution plate 382. The heat exchange air is symmetrically distributed in each heat exchange air duct along the air supply direction of the heat exchange air. Specifically, the first air distribution plate 381 is arranged in the first heat exchange air channel 36, the second heat exchange air channel 37 and the third heat exchange air channel 38; the second air distribution plate 388 is also arranged in the second heat exchange air channel One heat exchange air channel 36 , the second heat exchange air channel 37 and the third heat exchange air channel 38 . Moreover, the two air distribution plates are respectively located on both sides of the top of the "herringbone"-shaped structure, close to the top of the "herringbone"-shaped structure, and are symmetrically arranged with the straight line L as the axis of symmetry. The first air distribution plate 381 and the second air distribution plate 382 are both curved distribution plates, and the surface of each air distribution plate is a curved curved surface, which can effectively guide the wind direction and reduce the pressure loss of the air flow during the splitting process and noise, realizing high-speed air supply under the premise of low noise.

The first air distribution plate 381 evenly sends the wind in the first air duct 51 to the left half of each heat exchange air duct in the air supply device 3, and the second air distribution plate 382 evenly sends the wind in the second air duct 52 Send to the right half of each heat exchange air duct in the air supply device 3, and finally realize the uniformity of the heat exchange air duct of the air supply device 3 in the air inlet and outlet in the circumferential direction, and improve the air supply device 3. air supply uniformity.

In order to ensure the heat exchange effect of the air conditioner, the first heat exchanger 61 and the second heat exchanger 62 arranged symmetrically on the left and right sides of the straight line L both adopt multi-stage heat exchangers to increase the heat exchange area. In this embodiment, three-stage heat exchangers are used. Specifically, the first heat exchanger 61 includes a first heat exchanger upper section 611 , a first heat exchanger middle section 612 and a first heat exchanger lower section 613 . Symmetrically, the second heat exchanger 62 includes a second heat exchanger upper section 621 , a second heat exchanger middle section 622 and a second heat exchanger lower section 623 . Taking the first heat exchanger 61 and the first cross-flow fan 41 as an example, when the first heat exchanger 61 and the first cross-flow fan 41 are installed in the indoor unit body 100, in addition to setting the first heat exchanger 61 at the second Between a main air inlet 23 and the first cross-flow fan 41, in addition to forming a suction structure, the windward side of the first heat exchanger 61 should correspond to the first main air inlet 23, and the leeward side of the first heat exchanger 61 The surface should correspond to the air inlet of the first air duct 51.

In this embodiment, since the first main air inlet 23 and the second main air inlet 24 are formed on the side of the indoor unit body 100, they are relatively close to the mixed air outlet 13 formed on the front of the indoor unit body 100. The air intake of the air inlet interferes with the air outlet of the mixed air outlet 13, and the sides where the first main air inlet 23 and the second main air inlet 24 are located will be located in the area defined by the front where the mixed air outlet 13 is located. Specifically, as shown in Figure 1, the first main air inlet 23 and the second main air inlet 24 are formed on the rear shell 2, and the mixed air outlet 13 is formed on the front shell 1, therefore, the front shell outline 11 will be located at Outside the outline of the rear shell 2 (not marked in the figure). That is, in the front view of FIG. 3 , the rear case 2 is completely covered by the front case 1 . Therefore, the air out of the mixed air outlet 13 will not be sucked in again through the first main air inlet 23 and the second main air inlet 24 .

And, referring to the perspective view of the heat exchanger and the main air inlet shown in Figure 8 and the enlarged view of the heat exchanger and the main air inlet in Figure 6 shown in Figure 9, the second main air inlet 24 on the right side and the second main air inlet Taking the heat exchanger 62 as an example, in order to increase the air intake and improve the heat exchange efficiency, the second main air inlet 24 surrounds most of the second heat exchanger 62 . Specifically, the second main air inlet 24 surrounds all the upper section 621 of the second heat exchanger, all the middle section 622 of the second heat exchanger and most of the lower section 623 of the second heat exchanger. And the height of the opening of the upper end of the second main air inlet 24 is greater than the height of the upper section 621 of the second heat exchanger, ensuring that enough wind enters the upper section 621 of the second heat exchanger from the second main air inlet 24 . An inlet grill 241 is formed on the second main air inlet 24 , and a filter 242 is arranged inside the inlet grill 241 . The first main air inlet 23 and the second main air inlet 24 are arranged symmetrically, and the structure is the same as that of the second main air inlet 24 .

As shown in FIG. 1 , FIG. 3 and FIG. 4 , in this embodiment, a recess 12 is formed on the front shell 1 , and a mixed air outlet 13 is formed in the recess 12 . Specifically, the concave portion 12 has an outer contour line 121 and an inner contour line 122 , both of which are circular, and the inner contour line 122 forms the contour line of the air mixing outlet 13 . An annular wind guiding surface 123 is formed between the inner contour line 122 and the outer contour line 121 . Preferably, the surface of the annular air guide surface 123 is an arc surface, the front surface of the front shell 1 is an arc surface convex in the middle, and the surface where the mixed air outlet 13 is located is a plane. Moreover, the mixed air outlet 13 defined by the inner contour line 122 is eccentrically arranged relative to the concave portion 12 . Preferably, on a section perpendicular to the axis of the mixed air outlet 13 , the center of the mixed air outlet 12 deviates from the center of the recess 12 in a direction in which the center of the recess 12 deviates from the center of the indoor unit main body 100 . Specifically, the front view of FIG. 3 is a cross section perpendicular to the axis of the mixed air outlet 13. In this FIG. The center of is point M3. The point M1, the point M2 and the point M3 are collinear, the point M2 is located above the point M1, and the point M3 is located above the point M2. Therefore, the air blown out from the mixed air outlet 12 will be sent out from the concave portion 12 under the guidance of the annular air guiding surface 123 .

Referring to the perspective view of FIG. 2 , the side view of FIG. 4 and the rear view of FIG. 5 , a notch 212 is formed on the mounting portion 21 . The notch 212 includes a first surface 2121 and a second surface 2122 . Wherein, the first surface 2121 is a plane, perpendicular to and connected to the installation surface 211 of the installation part 21 ; the second surface 2122 is away from the installation surface 211 and parallel to the installation surface 211 . The non-heat exchange air inlet 22 is formed on the second surface 2122 .

Preferably, an air inlet chamber is formed on the first surface 2121, and the non-heat exchange air inlet 22 is partially located in the air inlet chamber. Specifically, the air inlet chamber includes a first air inlet chamber 213 and a second air inlet chamber 214, the first air inlet chamber 213 is close to the installation surface 211, and the second air inlet chamber 214 is located between the first air inlet chamber 213 and the non-heat exchange Between the air inlets 22. The non-heat exchange air inlet 22 is partially located in the second air inlet chamber 214 .

With the above-mentioned structure, after the indoor unit body 100 is installed in place through the installation part 21, an air inlet can be reserved for the non-heat exchange air inlet 22, so as to realize the unobstructed air intake of the non-exchange air inlet 22 and improve the air supply performance of the air conditioner.

Furthermore, a positioning portion for positioning the indoor unit body 100 when the indoor unit body 100 is mounted is formed on the mounting surface 211 . Specifically, a first positioning portion 215 and a second positioning portion 216 are formed on the installation surface 211 . Wherein, the first positioning part 215 is formed on the left side of the first air inlet chamber 213 and is close to the connecting part between the first surface 2121 and the first air inlet chamber 213, and the second positioning part 216 is formed on the right side of the first air inlet chamber 213, And close to the connection part between the first surface 2121 and the first air inlet chamber 213 . More preferably, the first positioning portion 215 and the second positioning portion 216 are symmetrically formed on both sides of the first air inlet cavity 213 to ensure positioning stability.

The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art can still understand the foregoing embodiments. Modifications are made to the technical solutions described, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions claimed in the present invention.

Claims (9)

1. An air conditioner, comprising an indoor unit body and a heat exchanger formed inside the indoor unit body, characterized in that a mixed air outlet and a non-heat exchange air inlet are formed on the indoor unit body, An air supply device is formed in the body of the indoor unit to communicate with the non-heat exchange air inlet and the mixed air outlet. The two air guiding bodies are arranged in sequence in front and back, and a through-flow channel is formed in the middle, and a heat exchange air channel is formed between two adjacent air guiding bodies; two cross-flow fans are also formed in the indoor unit body. On a section perpendicular to the axis of the air supply device, the axis projection points of the two cross-flow fans and the axis projection point of the air supply device form an isosceles triangle, and the axis projection point of the air supply device is Vertices of the isosceles triangle. 2. The air conditioner according to claim 1, wherein the base angle of the isosceles triangle is not greater than 75°. 3. The air conditioner according to claim 2, wherein the base angle of the isosceles triangle is 60°. 4. The air conditioner according to claim 1, wherein the axes of the two cross-flow fans are parallel to each other, and are respectively parallel to the axes of the air supply device, and the two cross-flow fans are The vertical line of the axis of the air supply device is symmetrical about the axis of symmetry. 5. The air conditioner according to claim 4, wherein a mounting portion is formed on the indoor unit body, and the axis of each cross-flow fan and the axis of the air supply device are aligned with the mounting portion. The mounting surface is vertical. 6. The air conditioner according to any one of claims 1 to 5, wherein an air duct volute is formed in the indoor unit body, and the cross-flow fan is arranged in the air duct volute formed by the air duct volute. At the air inlet of the air duct, the air supply device is arranged at the air outlet of the air duct formed by the volute of the air duct. 7. The air conditioner according to claim 6, wherein the air supply device is at least partially located inside the air outlet of the air duct formed by the air duct volute. 8. The air conditioner according to any one of claims 1 to 5, wherein the mixed air outlet is formed on the front of the indoor unit body, and the non-heat exchange air inlet is formed on the indoor unit On the back of the body, a main air inlet is formed on the side of the indoor unit body, and the cross-flow fan is arranged adjacent to the main air inlet. 9. The air conditioner according to claim 8, wherein the main air inlet includes a left main air inlet and a right main air inlet respectively formed on the left side and the right side of the indoor unit body , the heat exchanger includes a left heat exchanger formed between the left main air inlet and the first cross-flow fan of the two cross-flow fans, and a left heat exchanger formed between the right main air inlet and the first cross-flow fan of the two cross-flow fans. The right side heat exchanger between the second cross-flow fan among the two cross-flow fans, the left main air inlet and the right main air inlet are symmetrical with respect to the perpendicular to the axis of the air supply device The axis is left-right symmetrical, and the left heat exchanger and the right heat exchanger are also left-right symmetrical about the axis.