CN211451175U - An air conditioner outdoor unit and an air conditioner - Google Patents

Abstract

The application provides an air condensing units and air conditioner belongs to the air conditioner field. The air conditioner outdoor unit comprises a base plate, a heat exchanger and a fan assembly. Wherein the heat exchanger is generally C-shaped and includes a central portion and two side portions spaced apart from each other. The two side portions are connected by the middle portion so that the whole heat exchanger is approximately C-shaped; the bottom of the heat exchanger is connected with the chassis. The fan assembly is arranged between the two side parts of the heat exchanger and is arranged on the chassis, and the air inlet of the fan assembly faces the side parts of the heat exchanger. The centrifugal impeller is adopted and the heat exchanger comprises two side parts, so that the heat exchanger has higher efficiency and the overall performance of the outdoor unit of the air conditioner can be improved.

Description

An air conditioner outdoor unit and an air conditioner

technical field

The utility model relates to the technical field of air conditioners, in particular to an air conditioner outdoor unit and an air conditioner.

Background technique

The interior of the casing of the outdoor unit of the air conditioner generally includes an L-shaped heat exchanger and an axial flow fan. The rear side of the casing is provided with an air inlet, and the front side is provided with an air outlet. The axial flow fan is mounted on the housing chassis and is located on the front side of the heat exchanger. When the axial flow fan is working, the air from the air inlet of the casing is sucked into the casing, and flows through the heat exchanger for heat exchange with the heat exchanger, and then is discharged through the air outlet.

However, when the system impedance is large, the air volume will decrease rapidly, affecting the heat exchange between the system and the air. Many household air conditioner outdoor units are installed against the wall, and the fan inlet is close to the wall, which is not conducive to air entering the flow channel and affects the performance of the fan.

Utility model content

The problem solved by the utility model is to provide an air conditioner outdoor unit, which can increase the air intake volume of the fan, thereby improving the performance of the fan as a whole.

An air conditioner outdoor unit, comprising:

chassis;

a heat exchanger, the heat exchanger includes a middle part and two side parts arranged at opposite intervals; the heat exchanger is arranged on the chassis; a fan assembly, the fan assembly is installed on the chassis; the The fan assembly includes a power part and a centrifugal impeller, the power part is mounted on the chassis, and the power part is connected with the centrifugal impeller for driving the centrifugal impeller to rotate. The fan assembly is disposed between the two side parts, and the air inlet of the fan assembly is disposed toward the side parts.

Since the fan assembly adopts a centrifugal impeller, the reduction in air volume is small when the system has a certain wind resistance. In addition, since the heat exchanger adopts a C-shaped structure, the heat exchange efficiency is higher, so that the overall performance of the air conditioner outdoor unit can be improved.

Further, the fan assembly includes two centrifugal impellers, and the power part includes a dual-shaft motor mounted on the mounting frame; the two output shafts of the dual-shaft motor are respectively connected with the two centrifugal impellers.

The above-mentioned design enables the power part to be able to drive two centrifugal impellers with only one motor, thereby making the overall structure more compact.

Further, it also includes an installation frame; the installation frame includes a vertical plate and an upper connecting plate; the top of the vertical plate is connected to the upper connecting plate, and the bottom is connected to the chassis; The edges snap together the upper edges of the two side sections; the biaxial motor is mounted on the riser.

The upper connecting plate is connected with the upper part of the heat exchanger by means of snap-fit, which makes the assembly more convenient, and the overall stability of the mounting frame is better. The stable mounting frame reduces vibration and noise when the motor is working.

Further, the mounting frame further includes a lower connecting plate, the lower connecting plate is connected with the bottom of the vertical plate; the lower connecting plate is provided with screw holes for connecting with the chassis.

The lower connecting plate can be fastened on the chassis by screws, and the upper connecting plate and the lower connecting plate cooperate with each other, so that the stability of the vertical plate is greatly improved; the vibration and noise generated by the operation of the motor are further reduced.

Further, mounting holes and a plurality of bolt holes are provided on the vertical plate, and the bolt holes are arranged around the mounting holes; the biaxial motor includes a plurality of connecting lugs; the biaxial motor passes through the installation The connecting lug plate is connected in the bolt hole.

The above design makes the assembly of the motor and the vertical plate more convenient, and the design of the installation hole facilitates the dual-shaft motor to drive two centrifugal impellers at the same time.

Further, the air outlet of the fan assembly faces the middle part.

The above design enables the wind from the fan assembly to continue to exchange heat with the heat exchanger, thereby further improving the heat exchange efficiency of the heat exchanger; it can improve the heating or cooling performance of the air conditioner as a whole.

Further, the number of blades of the two centrifugal impellers is the same.

If the number of blades of the centrifugal impeller is different, it is easy to cause uneven force on both sides of the dual-shaft motor, which will increase the vibration of the dual-shaft motor when it is working.

Further, the number of blades of the two centrifugal impellers is N, and the offset angle of the two centrifugal impellers in the circumferential direction is β, and β=180°/N.

The above angle is designed so that the blades of the two impellers do not interact with the volute tongue at the same time, thereby reducing the peak value of discrete noise.

Further, the hub of the centrifugal impeller is concave to form an installation space, so as to accommodate the power part.

The hub of the centrifugal impeller is designed as a concave structure, which can leave a space for the installation of the power part, and reduce the distance between the two centrifugal impellers, so that the overall structure of the fan assembly is relatively compact.

Further, the fan assembly further includes two volutes, and the volutes are arranged on the chassis; the two centrifugal impellers are respectively arranged in the two volutes.

By arranging two relatively independent volutes, the two centrifugal wheels can be prevented from interfering with each other when they work.

Further, the volute includes a first casing, a second casing and a collector; the first casing and the second casing are detachably connected, and the first casing is arranged on the second casing The outer side of the casing; the first casing is provided with an air inlet; the current collector is arranged on the air inlet.

A mounting bracket is provided between the two volutes, and the second housings of the two volutes are connected to the mounting brackets, so that the two second housings are located between the two first housings; The second housing is disposed closer to the outside of the air conditioner outdoor unit. Taking the middle of the outdoor unit of the air conditioner as a reference, the first casing is disposed outside the second casing. By setting the collector, it is convenient for the centrifugal impeller to suck more air into the volute; and the above design is convenient for the installation and maintenance of the centrifugal impeller and the volute.

The present application also provides an air conditioner, which includes the above air conditioner outdoor unit.

The beneficial effects of the technical solutions provided by this application include:

The air conditioner outdoor unit and the air conditioner obtained by the above design, when in use, use a centrifugal impeller and the heat exchanger includes two side parts, which makes the heat exchanger more efficient, thereby improving the overall performance of the air conditioner outdoor unit and the air conditioner. performance.

Description of drawings

1 is a schematic structural diagram of an outdoor unit of an air conditioner provided by an embodiment of the present application after the casing is removed;

2 is a schematic structural diagram of a heat exchanger provided in an embodiment of the present application;

3 is a schematic structural diagram of a mounting frame provided by an embodiment of the present application;

4 is a schematic structural diagram of a fan assembly provided by an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a biaxial motor provided by an embodiment of the present application;

6 is a schematic structural diagram of a dual-shaft motor and one of the centrifugal impellers provided by the embodiment of the application;

7 is a schematic structural diagram of a dual-shaft motor and two centrifugal impellers provided by an embodiment of the application;

8 is a schematic diagram of a volute structure provided by an embodiment of the present application;

9 is a cross-sectional view of a volute and a centrifugal impeller provided by an embodiment of the application;

10 is an exploded view of a volute, a centrifugal impeller, and a biaxial motor provided by an embodiment of the application;

FIG. 11 is an exploded view of the fan assembly and the mounting frame provided by the embodiment of the application.

Icons: 1-cover; 2-chassis; 3-heat exchanger; 31-side part; 33-middle part; 4-mounting frame; 41-upper connecting plate; 42-flanging; 43-lower connecting plate; 44 - mounting hole; 45-bolt hole; 5-fan assembly; 50-power part; 51-double shaft motor; 511-output shaft; 513-connecting lug plate; 52-centrifugal impeller; 521-blade; 523-hub plate; 524-hub shaft hole; 525-nut; 53-volute; 531-first shell; 532-second shell; 533-current collector; 534-through hole; 535-connection hole.

Detailed ways

In order to make the above objects, features and advantages of the present utility model more clearly understood, the specific embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

Referring to FIG. 1 and FIG. 2 , this embodiment provides an outdoor unit of an air conditioner, which includes a cover plate 1 , a chassis 2 , a heat exchanger 3 and a fan assembly 5 . The heat exchanger 3 is roughly C-shaped, and includes a middle part 33 and two side parts 31 arranged at opposite intervals. The two side parts 31 are connected by the middle part 33, so that the whole heat exchanger 3 is roughly C-shaped; The fan assembly 5 is installed between the two side parts 31 of the heat exchanger 3 and is fixedly connected to the chassis 2 , and is provided with two air inlets facing the two side parts 31 of the heat exchanger 3 respectively.

The heat exchanger 3 adopts a C-shaped design, and the two air inlets of the fan assembly 5 are respectively set toward the two side parts 31. The above design makes the heat exchange area of the heat exchanger 3 larger, and the overall air intake volume of the fan assembly 5 larger. In addition, the air from the two air inlets can exchange heat with the heat exchanger 3, thereby greatly improving the overall performance of the outdoor unit of the air conditioner. When one air inlet is installed against the wall, at least one other air inlet can take in air smoothly, thereby reducing the influence of the installation against the wall on the performance of the outdoor unit of the air conditioner.

In addition, the wind of the fan assembly in the prior art is directly blown to the outside of the casing through the mesh cover in front of the casing, while the air outlet of the fan assembly 5 in this embodiment faces the middle part of the heat exchanger 3, which makes the fan assembly The outlet air can also conduct further heat exchange with the heat exchanger, thereby improving the heat exchange efficiency. Moreover, the above-mentioned design also omits the structure of the air outlet grille.

The internal structure of the above-mentioned heat exchanger 3 is not substantially changed from the structure in the prior art, so the internal structure of the heat exchanger 3 will not be described in detail.

Please refer to FIG. 3 , the fan assembly 5 includes a power part 50 , two centrifugal impellers 52 and two volutes 53 . The centrifugal impellers 52 are respectively arranged in the two volutes 53 and are connected to the power part. The power part adopts a biaxial motor 51 , the chassis 2 is also provided with a mounting frame 4 , and the biaxial motor 51 is fixedly connected to the chassis 2 through the mounting frame 4 .

The two centrifugal impellers 52 can work at the same time, thereby facilitating the simultaneous suction of air from the two air inlets; it increases the air intake volume of the fan assembly. Moreover, when one air inlet is installed against the wall, the centrifugal impeller 52 of the other air inlet can absorb air normally, thereby reducing the influence of the installation against the wall on the air volume. The use of the dual-axis motor 51 to drive the two centrifugal impellers 52 to rotate at the same time not only makes the overall structure more compact; but also the dual-axis motor 51 makes the rotation speeds of the two centrifugal impellers 52 consistent, thereby avoiding the inconsistency of the rotation speeds of the two centrifugal impellers 52. resulting vibration and noise. Specifically, please refer to FIG. 4, the mounting frame 4 is roughly I-shaped, and includes a vertical plate, an upper connecting plate 41 and a lower connecting plate 43, and the upper connecting plate 41 and the lower connecting plate 43 are respectively vertically connected to the upper end of the vertical plate and the lower connecting plate 43. lower end. Both ends of the upper connecting plate 41 are also provided with flanges 42, and the flanges 42 extend downward; the two ends of the upper connecting plate 41 are respectively buckled on the upper edges of the two side parts 31 of the heat exchanger 3; The inner sides of the flanges 42 abut against the outer sides of the two side surface portions 31 , respectively. The lower connecting plate 43 is provided with screw holes, and the lower connecting plate 43 is connected with the chassis 2 through screws.

The above-mentioned mounting frame 4 is fastened to the two side parts 31 of the heat exchanger 3 through the flanges 42 of the upper connecting plate 41 , and is connected to the chassis 2 through the screws on the lower connecting plate 43 . With the above connection method, the connection between the upper connecting plate 41 and the heat exchanger 3 does not need to use connecting parts such as screws, which avoids damage to the heat exchanger 3; and the installation is more convenient. Referring to FIGS. 4-9 , the middle of the vertical plate is provided with a mounting hole 44 for the casing of the biaxial motor 51 to pass through, and a plurality of bolt holes 45 are provided around the mounting hole 44 . A plurality of connection lugs 513 are provided on the casing of the biaxial motor 51 , and bolt holes 45 are correspondingly provided on the connection lugs 513 . The connecting lugs 513 are connected to the vertical plate by bolts, and at this time, the two output shafts 511 of the biaxial motor 51 are located on two sides of the vertical plate respectively.

The centrifugal impeller 52 includes a hub plate 523 and a plurality of blades 521, wherein the blades 521 are strip-shaped curved plate structures; distributed. The other side of the hub plate 523 is recessed to form an installation space. Half of the casing of the biaxial motor 51 is sunk into the installation space. The corresponding output shaft 511 passes through the hub shaft hole 524 and the centrifugal impeller 52 is fixed by the nut 525 .

Please refer to FIG. 10 and FIG. 11 , each centrifugal impeller 52 is provided with a volute 53 correspondingly, that is, the outdoor unit of the air conditioner is provided with two volutes 53 . The two volutes 53 are respectively connected on both sides of the vertical plate of the mounting frame 4 . Specifically, the volute 53 includes a first casing 531, a second casing 532 and a collector 533, wherein the first casing 531 and the second casing 532 are snapped together to form the basic structure of the volute 53; the second casing A connecting hole 535 is provided on the body 532, and the volute 53 is fixedly connected to the motor bracket through the second casing 532. The first casing 531 is arranged outside the second casing 532, that is, the first casing 531 is opposite to the second casing The 532 is closer to the outside of the air conditioner outdoor unit. In addition, an air inlet is provided in the middle of the first casing 531, and the collector 533 is connected to the air inlet; a hole 534 is opened on the second casing 532 so that the motor can pass through. The collectors 533 of the two volutes 53 are respectively opposite to the inner sides of the two side parts 31 of the heat exchanger 3, and the air outlet pipe of the volutes 53 is opposite to the inner side of the middle part 33 of the heat exchanger 3; The two side parts 31 of the heat exchanger 3 enter into the volute 53 and are blown out through the middle part 33 of the heat exchanger 3 .

Further, the number of blades 521 of the two centrifugal impellers 52 is N, and the two centrifugal impellers 52 are staggered by a certain angle β in the circumferential direction (that is, the projections of the two centrifugal impellers 52 on the plane perpendicular to the axial direction are staggered. setting), β=180°/N; to ensure that the blades 521 of the two impellers do not interact with the volute tongue at the same time, thereby reducing the peak value of discrete noise.

The working principle and beneficial effects of the air conditioner outdoor unit provided by the present embodiment are as follows:

In use, the dual-shaft motor 51 drives the two centrifugal impellers 52 to rotate at the same time, so that the fan assembly 5 sucks air through the two current collectors 533 at the same time. Since the two collectors 533 are respectively opposite to the two side parts 31 of the heat exchanger 3 , the airflow can exchange heat therewith when passing through the heat exchanger 3 ; The middle part 33 of the heat exchanger 3 and further heat exchange with the heat exchanger 3; the final airflow is blown to the outside of the air conditioner outdoor unit. Since the air can perform two heat exchanges, it makes the heat exchange more sufficient, thereby improving the cooling and heating performance of the air conditioner. And the side part 31 of the heat exchanger 3 is arranged on the front side of the outdoor unit, which omits the structure of the air outlet grille of the traditional outdoor unit and reduces the resistance of the grille. In addition, since the outdoor unit of the air conditioner adopts air intake from both sides, even if the outdoor unit of the air conditioner is close to the wall, it has little effect on the overall air intake.

It should be noted that this embodiment provides one of many embodiments, and there may be many modifications in other embodiments; for example, the power assembly may include two motors, and each motor drives each centrifugal impeller respectively 52.

Although the present invention is disclosed above, the present invention is not limited thereto. Any person skilled in the art can make various modifications without departing from the spirit and scope of the present invention, and the above modifications are all within the protection scope of the present invention.

Claims (13)

1. an air conditioner outdoor unit, is characterized in that, comprises: chassis (2); A heat exchanger (3), the heat exchanger (3) comprising a middle portion (33) and two side portions (31) arranged at opposite intervals, the two side portions (31) passing through the middle portion (33) ) connection; the heat exchanger (3) is mounted on the chassis (2); A fan assembly (5), the fan assembly (5) is mounted on the chassis (2), and includes a power part (50) and a centrifugal impeller (52), the power part is connected with the centrifugal impeller (52), for driving the centrifugal impeller (52) to rotate; the fan assembly (5) is arranged between the two side parts (31), and the air inlet of the fan assembly (5) faces the side part (31) )set up. 2 . The air conditioner outdoor unit according to claim 1 , wherein the fan assembly ( 5 ) comprises two centrifugal impellers ( 52 ), and is provided with two air inlets correspondingly; The air inlets are respectively arranged toward the two side parts (31). 3. The air conditioner outdoor unit according to claim 2, wherein the power part (50) comprises a biaxial motor (51), and the biaxial motor (51) is mounted on the chassis (2); The two output shafts (511) of the biaxial motor (51) are respectively connected with the two centrifugal impellers (52). 4. The outdoor unit of the air conditioner according to claim 3, characterized in that it further comprises a mounting bracket (4), the mounting bracket (4) comprising a vertical plate and an upper connecting plate (41); the top of the vertical plate is connected to The upper connecting plate (41) is connected, and the bottom is connected with the chassis (2); both ends of the upper connecting plate (41) are provided with flanges (42), and the upper connecting plate (41) passes through two The flanges (42) are fastened on the upper edges of the two side parts (31); The biaxial motor (51) is mounted on the vertical plate. 5. The air conditioner outdoor unit according to claim 4, characterized in that, the mounting frame (4) further comprises a lower connecting plate (43), and the lower connecting plate (43) is connected to the bottom of the vertical plate; The lower connecting plate (43) is provided with screw holes for connecting with the chassis (2). 6. The air conditioner outdoor unit according to claim 4, characterized in that, a mounting hole (44) is provided on the vertical plate; the biaxial motor (51) passes through the mounting hole (44) and is connected with the mounting hole (44). The vertical plate connection. 7 . The outdoor unit of an air conditioner according to claim 2 , wherein the number of blades ( 521 ) of the two centrifugal impellers ( 52 ) is the same. 8 . 8 . The air conditioner outdoor unit according to claim 2 , wherein the number of blades ( 521 ) of the two centrifugal impellers ( 52 ) is N, and the offset angle of the two centrifugal impellers ( 52 ) in the circumferential direction is N 8 . β, β=180°/N. 9 . The air conditioner outdoor unit according to claim 1 , wherein the air outlet of the fan assembly ( 5 ) faces the middle portion ( 33 ). 10 . 10 . The outdoor unit of an air conditioner according to claim 1 , wherein the hub plate ( 523 ) of the centrifugal impeller ( 52 ) is recessed to form an installation space, so as to accommodate the power part. 11 . 11. The air conditioner outdoor unit according to claim 1, wherein the fan assembly (5) further comprises two volutes (53), and the volutes (53) are arranged on the chassis (2) ; The two centrifugal impellers (52) are respectively arranged in the two volutes (53). 12. The air conditioner outdoor unit according to claim 11, wherein the volute (53) comprises a first casing (531), a second casing (532) and a collector (533); The first casing (531) is detachably connected to the second casing (532), and the first casing (531) is disposed outside the second casing (532); The first housing (531) is provided with an air inlet; the current collector (533) is arranged on the air inlet. 13. An air conditioner, characterized by comprising the air conditioner outdoor unit according to any one of claims 1-12.

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