Air conditioner outdoor unit

Abstract

The air conditioner outdoor unit comprises a main unit body and a protective net, a draught fan and a heat exchanger are arranged in the main unit body, and the draught fan is used for conveying airflow subjected to heat exchange through the heat exchanger to the outside of the main unit body; the protection net is arranged in the main machine body and located on the air inlet side of the heat exchanger, the protection net is provided with a plurality of screen holes, and the sizes of the screen holes are decreased in the direction close to the draught fan. By utilizing the existing structural protective net and designing the sizes of the sieve pores, the air quantity flowing through different areas of the heat exchanger is increased or reduced, the heat exchange air quantity flowing through different positions of the heat exchanger is balanced, and the heat exchange efficiency of the air conditioner outdoor unit is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the air conditioning technical field, in particular to an air conditioner outdoor unit. BACKGROUND

[0002] The fan of the top air outlet type air conditioner outdoor unit is located at the top of the whole machine, and the heat exchanger is located below the fan. The closer to the fan, the greater the wind speed, which causes the heat exchange air volume of the part of the heat exchanger close to the fan to be too large, and the heat exchange air volume of the part of the heat exchanger far from the fan to be too small, so that the heat exchange function of the heat exchanger cannot be fully played. CONTENT OF THE UTILITY MODEL

[0003] The utility model provides a kind of air conditioner outdoor unit to solve the technical problem of uneven heat exchange air volume of heat exchanger.

[0004] To achieve the above object, the air conditioner outdoor unit provided by the present application comprises a main body and a protective net, a fan and a heat exchanger are arranged in the main body, the fan is used to deliver airflow exchanged by the heat exchanger to outside of the main body, and the protective net is arranged in the main body and located at the air inlet side of the heat exchanger. The protective net has a plurality of mesh holes, and the size of the mesh holes decreases along the direction close to the fan.

[0005] Optionally, in an embodiment, the protective net comprises a support and a plurality of filter screens arranged on the support, each filter screen has the plurality of mesh holes, and the size of the mesh holes of the plurality of filter screens decreases along the direction close to the fan.

[0006] Optionally, in an embodiment, the filter screens are arranged one by one or a plurality of filter screens are arranged at relative intervals along the air inlet direction of the heat exchanger.

[0007] Optionally, in an embodiment, the support comprises a plurality of cross beams and a plurality of longitudinal beams, the plurality of cross beams are arranged side by side and at intervals, the plurality of longitudinal beams are arranged side by side and at intervals, the plurality of longitudinal beams are connected to the plurality of cross beams, and each filter screen is connected between adjacent cross beams and adjacent longitudinal beams.

[0008] Optionally, in an embodiment, the side of the protective net facing the heat exchanger is provided with a support member, and one end of the support member away from the protective net is detachably connected to the heat exchanger.

[0009] Optionally, in an embodiment, the support member comprises a connecting portion and a supporting portion, the supporting portion is connected between the connecting portion and the protective net, and the connecting portion is detachably connected to the heat exchanger.

[0010] Optionally, in one embodiment, the connecting portion includes a retaining ring with a notch, the retaining ring being used to engage with the heat exchanger.

[0011] Optionally, in one embodiment, the protective net includes a support and a plurality of filters disposed on the support, each of the filters having the plurality of sieve holes, and the end of the support portion away from the connecting portion is connected to the support.

[0012] Optionally, in one embodiment, multiple supports are provided, and the multiple supports are spaced apart along the direction close to the fan.

[0013] Optionally, in one embodiment, the protective mesh is recessed in a direction away from the heat exchanger to form a concave surface, and a plurality of concave surfaces are provided at intervals.

[0014] The outdoor air conditioning unit provided in this application increases or decreases the airflow through different areas of the heat exchanger by utilizing an existing protective mesh and designing the size of its sieve holes, thereby balancing the heat exchange airflow through different locations of the heat exchanger and improving the heat exchange efficiency of the outdoor air conditioning unit. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of the outdoor unit of the air conditioner in this application;

[0017] Figure 2 This is a structural schematic diagram of the outdoor unit of the air conditioner from other perspectives in this application;

[0018] Figure 3 This is a schematic diagram of the structure of the protective mesh, heat exchanger, and fan in this application;

[0019] Figure 4 This is a schematic diagram of the protective net structure in this application;

[0020] Figure 5 This is a schematic diagram of the internal structure of the protective netting in this application;

[0021] Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0022] Explanation of icon numbers:

[0023] 1. Main body; 2. Protective net; 21. Bracket; 211. Crossbeam; 212. Longitudinal beam; 22. Filter screen; 3. Heat exchanger; 4. Fan; 5. Support component; 51. Support part; 52. Connecting part; 521. Notch.

[0024] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Furthermore, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model.

[0026] In the description of this application, it should be understood that the terms "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this application and for simplification, and do not indicate or imply that the device or element referred to must have a unique orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0027] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0028] This application provides an outdoor unit for an air conditioner to solve the problem of uneven airflow in a heat exchanger. The following description will be provided in conjunction with the accompanying drawings.

[0029] In the embodiments of this application, such asFigure 1 , Figure 2 as well as Figure 3 As shown, the outdoor unit of the air conditioner includes a main body 1 and a protective net 2. A fan 4 and a heat exchanger 3 are installed inside the main body 1. The fan 4 is used to transport the airflow after heat exchange by the heat exchanger 3 to the outside of the main body 1. The protective net 2 is installed inside the main body 1 and located on the air inlet side of the heat exchanger 3. The protective net 2 has multiple screen holes, and the size of the multiple screen holes decreases along the direction close to the fan 4.

[0030] It should be noted that the air inlet side of heat exchanger 3 refers to the side where airflow enters heat exchanger 3; corresponding to the air inlet side of heat exchanger 3 is the air outlet side, which refers to the side where airflow exits heat exchanger 3. The protective mesh 2 is a structure that prevents foreign objects from entering the interior of the main unit 1, protecting the outdoor unit from birds, leaves, dust, etc. The size of the screen holes refers to the size of the screen openings, which can be round, square, oblong, fish-scale shaped, etc. Larger screen openings indicate a larger airflow rate at that location on the protective mesh 2.

[0031] Understandably, by utilizing the existing structure of the outdoor unit of the air conditioner: the protective mesh 2, and making the sieve holes on the protective mesh 2 smaller along the direction close to the fan 4, the airflow flowing through at least part of the heat exchanger 3 near the fan 4 is reduced, while the airflow flowing through at least part of the heat exchanger 3 away from the fan 4 is relatively increased. This solves the problem of uneven heat exchange airflow in the heat exchanger 3 caused by distance and wind speed, improves the air field distribution, fully utilizes the heat exchange performance of the heat exchanger 3, and improves the heat exchange efficiency of the outdoor unit of the air conditioner.

[0032] In some embodiments, such as Figure 3 and Figure 4 As shown, the protective net 2 includes a support 21 and a plurality of filter screens 22 disposed on the support 21. Each filter screen 22 has a plurality of sieve holes, and the size of the sieve holes of the plurality of filter screens 22 decreases along the direction close to the fan 4.

[0033] It should be noted that the filter screen 22 is usually woven from metal or non-metal wires, and generally the sieve hole size is consistent throughout a single filter screen 22. By setting multiple filter screens 22 on the support 21, the installation reliability of the filter screens 22 is improved, and the airflow at different positions of the heat exchanger 3 can be adjusted by replacing filter screens 22 with different sieve hole sizes, which facilitates the production of a protective screen 2 that meets the requirements of this application. For example, (for ease of description, the heat exchanger 3 is divided into an upper part closer to the fan 4 and a lower part farther from the fan 4, but this does not limit the setting of the filter screens 22) the upper part of the heat exchanger 3 can be equipped with a filter screen 22 with smaller sieve holes, and the lower part of the heat exchanger 3 can be equipped with a filter screen 22 with larger sieve holes. For the sake of clearer images, the sieve holes are not shown in the figures.

[0034] In some embodiments, such as Figure 3As shown, along the air inlet direction of the heat exchanger 3, there is one filter screen 22 or multiple filters screens arranged at relatively intervals; along the direction close to the fan 4, multiple filters screens 22 are arranged sequentially.

[0035] It should be noted that "along the air inlet direction of heat exchanger 3, one or more filters 22 are provided" means: (For ease of description, heat exchanger 3 is divided into an upper part closer to fan 4 and a lower part farther from fan 4, but this does not limit the placement of filters 22) Since the upper part of heat exchanger 3 is closer to fan 4, multiple filters 22 can be provided in the air inlet direction of the upper part to reduce the airflow and prevent excessive airflow in the upper part of heat exchanger 3; these multiple filters 22 can be staggered or have different mesh sizes. Since the lower part of heat exchanger 3 is farther from fan 4, only one filter 22 can be provided in the air inlet direction of the lower part to ensure sufficient airflow, thereby balancing the airflow in the upper and lower parts of heat exchanger 3, uniformizing the airflow field, and fully utilizing the heat exchange performance of heat exchanger 3.

[0036] In some embodiments, such as Figure 4 As shown, the support 21 includes multiple crossbeams 211 and multiple longitudinal beams 212. The multiple crossbeams 211 are arranged side by side and spaced apart, and the multiple longitudinal beams 212 are arranged side by side and spaced apart. The multiple longitudinal beams 212 are connected to the multiple crossbeams 211, and each filter screen 22 is connected between an adjacent crossbeam 211 and an adjacent longitudinal beam 212.

[0037] It is understandable that the filter screen 22 is supported by multiple crossbeams 211 and multiple longitudinal beams 212, and the space formed by the intersection of multiple crossbeams 211 and multiple longitudinal beams 212 can serve as the installation space for the filter screen 22, and there are many of them, which makes it convenient to install filter screens 22 with different screen hole sizes according to the distance between them and the fan 4.

[0038] For example, the crossbeams 211 have an approximately U-shaped structure, with four crossbeams 211 arranged side by side at intervals along the axial direction of the fan 4; two longitudinal beams 212 are arranged opposite each other, one of which connects the first ends of the four crossbeams 211, and the other connects the second ends of the four crossbeams 211; three filters 22 are provided. It can be imagined that the opposite ends and one side of the protective net 2 are open, and correspondingly, the opposite ends of the protective net 2 face the bottom of the fan 4 and the main body 1, respectively. The bottom of the main body 1 is sealed, and the fan 4 is located near the upper end of the main body 1; an air inlet grille is provided on the side of the main body 1 opposite to the filter 22, and the side of the main body 1 opposite to the opening of the protective net 2 is sealed.

[0039] Similarly, the crossbeams 211 and longitudinal beams 212 can be configured with other structures for different main body 1. For example, when the main body 1 is open on all sides, the protective net 2 can be configured as a ring structure with openings at both ends.

[0040] In some embodiments, such as Figure 5 As shown, a support member 5 is provided on the side of the protective net 2 facing the heat exchanger 3, and the end of the support member 5 away from the protective net 2 is detachably connected to the heat exchanger 3.

[0041] It should be noted that the end of the support member 5 furthest from the protective net 2 can be connected using common detachable methods such as bolts, snap-fit ​​connections, or pin connections. Understandably, since the protective net 2 itself has relatively low structural strength and is prone to slight deformation, by setting the support member 5 on the protective net 2, the support member 5 can be immediately connected to the heat exchanger 3 during the installation of the protective net 2. This method is quick and reduces the number of screws used to fix the protective net 2.

[0042] In some embodiments, such as Figure 6 As shown, the support member 5 includes a connecting part 52 and a supporting part 51. The supporting part 51 is connected between the connecting part 52 and the protective net 2. The connecting part 52 is detachably connected to the heat exchanger 3.

[0043] Understandably, the support 51 can not only maintain the positional relationship between the guard net 2 and the heat exchanger 3, but also support the guard net 2 to prevent it from contacting the heat exchanger 3 after deformation. Compared with setting a sponge between the guard net 2 and the heat exchanger 3 for support, the support 5 can ensure the air intake of the guard net 2. The support 5 and the heat exchanger 3 can be fixed at the same time as the guard net 2 is installed, without the need for separate installation.

[0044] In some embodiments, such as Figure 6 As shown, the connecting part 52 includes a retaining ring with a notch 521 for fitting into the heat exchanger 3. It can be understood that by enlarging the notch 521, the retaining ring can be fitted onto the heat exchange tubes of the heat exchanger 3.

[0045] In some embodiments, the protective net 2 includes a support 21 and a plurality of filters 22 disposed on the support 21, each filter 22 having a plurality of sieve holes, and the end of the support 51 away from the connecting part 52 is connected to the support 21.

[0046] Understandably, the support 21 has greater structural strength than the filter 22, and placing the connecting part 52 on the support 21 can better support the protective net 2.

[0047] In some embodiments, such as Figure 5 As shown, multiple support members 5 are provided, and the multiple support members 5 are spaced apart along the direction close to the fan 4.

[0048] It is understandable that multiple support components 5 are used to improve the installation stability of the protective net 2 and the supporting force of the protective net 2.

[0049] In some embodiments, the guard mesh 2 is recessed in a direction away from the heat exchanger 3 to form a concave surface, and multiple concave surfaces are arranged at intervals. It is understood that the concave surface has the function of reflecting noise from the heat exchanger 3. Exemplarily, at least one filter mesh 22 is recessed in a direction away from the heat exchanger 3 to form a concave surface, and multiple concave surfaces are arranged at intervals. The filter mesh 22 with multiple concave surfaces has a wavy structure, resulting in better noise reduction. Furthermore, the filter mesh 22 can also be made of sound-absorbing material.

[0050] This application also provides an air conditioner, including the above-mentioned outdoor unit and indoor unit. The specific structure of the outdoor unit is as described in the above embodiments. Since this air conditioner adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0051] In the above embodiments, the descriptions of each embodiment have different focuses. Parts not described in detail in a particular embodiment can be referred to in the relevant descriptions of other embodiments. In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0052] The above provides a detailed description of the outdoor air conditioning unit provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An air conditioner outdoor unit characterized by comprising: The main body is provided with a fan and a heat exchanger, the fan is used for conveying airflow after heat exchange of the heat exchanger to outside of the main body; the protective net is arranged in the main body and located at the air inlet side of the heat exchanger, the protective net has a plurality of screen holes, and the size of the plurality of screen holes decreases along the direction close to the fan.

2. The air conditioner outdoor unit according to claim 1, characterized by The protective net includes a support and a plurality of filter screens arranged on the support, each filter screen has the plurality of screen holes, and the screen hole diameter of the plurality of filter screens decreases along the direction close to the fan.

3. The air conditioner outdoor unit according to claim 2, characterized by Along the air inlet direction of the heat exchanger, the filter screen is provided with one or a plurality of relatively spaced filter screens; along the direction close to the fan, the plurality of filter screens are sequentially arranged.

4. The air conditioner outdoor unit according to claim 2, characterized by The support includes a plurality of cross beams and a plurality of longitudinal beams, the plurality of cross beams are arranged side by side and spaced apart, the plurality of longitudinal beams are arranged side by side and spaced apart, the plurality of longitudinal beams are connected to the plurality of cross beams, and each filter screen is connected between adjacent cross beams and adjacent longitudinal beams.

5. The air conditioner outdoor unit according to claim 1, characterized by The side of the protective net towards the heat exchanger is provided with a support, and one end of the support away from the protective net is detachably connected to the heat exchanger.

6. The air conditioner outdoor unit according to claim 5, characterized by The support includes a connecting portion and a supporting portion, the supporting portion is connected between the connecting portion and the protective net, and the connecting portion is detachably connected to the heat exchanger.

7. The air conditioner outdoor unit according to claim 6, characterized by The connecting portion includes a clasp provided with a notch, and the clasp is used for sleeving the heat exchanger.

8. The air conditioner outdoor unit according to claim 6, characterized by The protective net includes a support and a plurality of filter screens arranged on the support, each filter screen has the plurality of screen holes, and one end of the supporting portion away from the connecting portion is connected to the support.

9. The air conditioner outdoor unit according to claim 5, wherein The support is provided with a plurality of supports, and the plurality of supports are spaced apart along the direction close to the fan.

10. The air conditioner outdoor unit according to any one of claims 1-9, characterized in that, The protective net is recessed in the direction away from the heat exchanger to form a concave surface, and the concave surface is spaced apart and provided with a plurality of concave surfaces.

Images