Grid assembly and air conditioner outdoor unit

Abstract

The invention relates to an air conditioner outdoor unit, in particular to a grille assembly and an air conditioner outdoor unit, and aims to solve the problem that wind resistance of an existing grille cannot be adjusted in a limited mode. In order to achieve the purpose, the grille assembly comprises an elastic grille net and an adjusting piece, the edge of the elastic grille net is fixedly arranged, and the adjusting piece is connected to the middle of the elastic grille net; the adjusting piece can move relative to the elastic grating net, so that the elastic grating net is elastically deformed, and the gap size of the elastic grating net is adjusted. According to the grille assembly, dynamic adjustment of grille gaps is achieved through movement of the adjusting piece relative to the elastic grille net, and the overall ventilation and protection performance is improved. The design is simple, the adaptability is high, the device is suitable for various scenes needing ventilation and protection, such as outdoor air conditioners and ventilation equipment, and the reliability of the equipment is improved while the ventilation efficiency is guaranteed.

Description

Technical Field

[0001] The invention relates to an outdoor unit of an air conditioner, and in particular provides a grille component and an outdoor unit of the air conditioner. Background Art

[0002] In existing air conditioning systems, the main function of the outdoor unit is to transfer indoor heat to the outdoor environment. Usually, the outdoor unit consists of components such as a heat exchanger, a fan, and a compressor. The heat exchanger exchanges heat with the outside air, and the fan improves the heat exchange efficiency by accelerating the air flow. The fan is installed at the air outlet and accelerates the air flow by rotating, thereby taking away heat more effectively and achieving a cooling or heating effect.

[0003] In order to protect the internal structure of the outdoor unit and prevent foreign objects from entering, traditional air conditioner outdoor units are equipped with grilles at the air outlet to block foreign objects such as dust and leaves, protect the heat exchanger and fan, and ensure the safety of the equipment for long-term operation. However, most existing grilles are fixed structures, and the opening size and position cannot be adjusted. When the fan is running at high speed, the fixed grille will generate greater air resistance, restrict air flow, affect fan efficiency, and thus reduce heat exchange efficiency, especially under high load conditions, resulting in increased fan energy consumption and limited heat exchange effect.

[0004] To reduce wind resistance, some designs use louver grilles, the principle of which is to control the opening and closing angle of the air outlet through an adjustable louver structure. When air flow needs to be improved, the louvers are opened to reduce wind resistance; when efficient heat exchange is not required, the louvers can be closed to enhance protection. Although the louver grille has improved the wind resistance problem of the fixed grille to a certain extent, its design is complex, which increases the manufacturing cost and maintenance difficulty, and the wind resistance adjustment range is limited. The angle of the louver is physically limited, and it is difficult to achieve the ideal heat exchange effect under all working conditions. When the wind speed is high or the temperature fluctuates greatly, the adjustment effect of the louver is difficult to fully meet the needs. Therefore, although the louver grille has improved in wind resistance control, it cannot provide the best air flow and heat exchange performance under all operating conditions, and further innovation is still needed to achieve a more flexible and efficient wind resistance adjustment mechanism.

[0005] Therefore, there is an urgent need in the art for a grille assembly and an air conditioner outdoor unit to solve the above problems. Summary of the invention

[0006] The present invention aims to solve the above technical problem, that is, to solve the problem that the existing grille cannot adjust the wind resistance to a limited extent.

[0007] In a first aspect, the present invention provides a grille assembly, the grille assembly comprising an elastic grille net and an adjusting member, wherein the edge of the elastic grille net is fixedly arranged, and the adjusting member is connected to the middle of the elastic grille net;

[0008] The adjusting member can move relative to the elastic grid net to cause the elastic grid net to deform elastically so as to adjust the gap size of the elastic grid net.

[0009] In a specific embodiment of the above-mentioned grille assembly, the adjusting member is arranged at the center of the elastic grille net, or the adjusting member is arranged offset from the center.

[0010] In a specific embodiment of the above-mentioned grid assembly, the elastic grid net includes:

[0011] A plurality of elastic warps, wherein the elastic warps are in a stretched state, and the plurality of elastic warps are arranged at intervals along a circumference, and the adjusting member is connected to the plurality of elastic warps, and when the adjusting member moves, the elastic warps can be driven to stretch or contract;

[0012] A plurality of elastic weft threads, wherein the elastic weft threads are fixedly connected to the plurality of elastic warps, and the plurality of elastic weft threads are arranged at intervals along the extension direction of the elastic warps;

[0013] When the adjusting member moves to stretch the elastic warp threads, a portion of the elastic weft threads gather near the adjusting member, and the spacing between the other portion of the elastic weft threads increases;

[0014] When the adjusting member moves to shrink the elastic warp threads, the elastic weft threads near the adjusting member expand, and the intervals between the remaining elastic weft threads become smaller.

[0015] In a specific embodiment of the above-mentioned grid assembly, both ends of the elastic warp are fixedly arranged, and a plurality of the elastic warp are arranged at intervals along the circumference and intersect at the center of the circumference; and

[0016] One end of the elastic warp is fixedly arranged, and the other end is connected to the adjusting member.

[0017] In a specific embodiment of the above-mentioned grid assembly, the elastic weft wire is in a circular ring shape, a plurality of the elastic weft wires with different diameters are concentrically arranged, and the adjusting member is arranged at the center of the elastic weft wire.

[0018] In a specific embodiment of the above grille assembly, the grille assembly further comprises:

[0019] A fixing member is fixedly arranged relative to the edge of the elastic grid net, and a plurality of threading through holes are arranged on the fixing member, and the elastic warp threads are passed through the threading through holes.

[0020] In a second aspect, the present invention provides an air conditioner outdoor unit, comprising a housing and the above-mentioned grille assembly, wherein the housing is provided with an air outlet, and the grille assembly is arranged at the air outlet.

[0021] In a specific embodiment of the above-mentioned air-conditioning outdoor unit, the air-conditioning outdoor unit further includes a driving member, the driving member is connected to the adjusting member, and the driving member can drive the adjusting member to move relative to the elastic grille net to control the gap size of the elastic grille net.

[0022] In a specific embodiment of the above-mentioned air-conditioning outdoor unit, the air-conditioning outdoor unit further includes a fan and a control module, the fan is arranged at the air outlet, and the fan and the driving member are electrically connected to the control module;

[0023] When the fan speed increases, the control module can increase the gap of the elastic grille;

[0024] When the fan speed decreases, the control module can reduce the gap between the elastic grille nets.

[0025] In a specific embodiment of the above-mentioned air conditioner outdoor unit, the air conditioner outdoor unit further includes a foreign object detection component and a control module, the foreign object detection component is used to detect whether there is a foreign object at the air outlet, and the foreign object detection component and the driving component are both electrically connected to the control module;

[0026] When the foreign object detector detects the presence of foreign objects at the air outlet, the control module can reduce the gap of the elastic grille.

[0027] In the case of adopting the above technical solution, the grille assembly of the present invention realizes dynamic adjustment of the grille gap through the movement of the adjusting part relative to the elastic grille net, thereby improving the overall ventilation and protection performance. The gap of the grille can be flexibly adjusted according to different application requirements: when it is necessary to increase the smoothness of airflow, the gap of the grille net is increased by the adjusting part to reduce wind resistance and improve the smooth passage of airflow, which is particularly suitable for high-load operation or scenes requiring efficient heat exchange, thereby optimizing the heat exchange efficiency and enhancing the stability of the equipment. In the case of enhanced protection, the grille gap can be reduced to effectively block the entry of foreign objects such as dust and leaves, protect internal components, reduce the loss and failure risk caused by foreign objects, and extend the life of the equipment. This design is simple and adaptable, and is suitable for a variety of scenes requiring ventilation and protection, such as outdoor air conditioners and ventilation equipment, which improves the reliability of the equipment while ensuring ventilation efficiency.

[0028] Furthermore, the present invention utilizes a combination structure of elastic warp and elastic weft so that the gap of the grille mesh changes with the displacement of the adjusting member, thereby achieving precise wind resistance and protection regulation. When the adjusting member moves and causes the warp to lengthen, part of the weft gathers near the adjusting member, and the grille gap increases accordingly, reducing wind resistance and enhancing air circulation. It is particularly suitable for working conditions that require rapid heat dissipation, and greatly improves heat exchange efficiency and equipment stability. When the warp contracts, the weft expands and the gap decreases, effectively blocking the entry of foreign matter from the outside, improving protection capabilities, and ensuring the safety inside the equipment. This structure is simple in design and responsive, and can provide highly adaptable protection and ventilation effects under different operating conditions, reducing system complexity.

[0029] Furthermore, the invention fixes the fixing member relative to the edge of the elastic grid net and provides a threading through hole on the fixing member so that the elastic warp can be threaded therein. When the elastic warp is elastically deformed due to force, the threading through hole constrains the elastic warp so that the elastic warp remains in a straightened state between the fixing member and the edge of the elastic grid net, so that the elastic grid net between the fixing member and the edge of the elastic grid net can maintain its original shape and structural stability.

[0030] Furthermore, the present invention automatically adjusts the gap of the grille according to the fan speed through the control module to optimize ventilation and protection under different working conditions. When the fan speed increases, the control module increases the grille gap, reduces wind resistance, and improves airflow permeability, which helps to meet the heat dissipation requirements under high load and high temperature conditions and ensure stable operation of the equipment. When the fan speed decreases, the control module reduces the grille gap to form a tighter barrier to provide excellent protection and avoid malfunctions caused by foreign body intrusion. This automatic adjustment mechanism does not require human intervention and realizes flexible adjustment of the grille, which improves the protection performance while ensuring the ventilation efficiency of the air conditioner, significantly improves the reliability, life and energy efficiency of the equipment, and provides a highly adaptive and energy-saving operation mode for the system.

[0031] Furthermore, the present invention realizes intelligent monitoring and response to foreign objects at the air outlet of the air conditioner outdoor unit by setting up a foreign object detection component, further enhancing the protection and reliability of the equipment. When the foreign object detection component senses the presence of foreign objects at the air outlet, the control module will immediately drive the gap of the grille to narrow, forming an effective physical barrier to prevent foreign objects from entering the equipment, protecting key components from damage, and reducing the risk of blockage and wear. This rapid response mechanism reduces the occurrence of failures and the need for downtime for maintenance. At the same time, it realizes unattended protection management by reducing human intervention, ensuring system safety and operating efficiency. Compared with traditional fixed grilles, the present invention improves foreign object protection without hindering normal ventilation, extending the service life of the equipment and significantly reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0033] Figure 1 It is a structural schematic diagram of an air-conditioning outdoor unit provided by the present invention;

[0034] Figure 2 is a schematic diagram of the structure of the grid assembly provided by the present invention, in which the elastic weft is not shown;

[0035] Figure 3 It is a schematic diagram of the structure of the adjusting member and the fixing member provided by the present invention;

[0036] Figure 4 It is a schematic diagram of the structure of the elastic grid net in a tight state provided by the present invention;

[0037] Figure 5 It is a schematic diagram of the sparse state structure of the elastic grid net provided by the present invention.

[0038] List of reference numerals:

[0039] 1. Elastic grid mesh; 11. Elastic warp; 12. Elastic weft;

[0040] 2. Adjustment parts; 3. Fixing parts;

[0041] 4. Shell; 41. Air outlet; 42. Support ribs;

[0042] 5. Fan; 6. Foreign object detection part. DETAILED DESCRIPTION

[0043] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0044] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0045] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "setting", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or the internal connection of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In order to solve the problem that the grille cannot adjust the wind resistance to a certain extent, this embodiment discloses an air conditioner outdoor unit. Figure 1 The air conditioner outdoor unit includes a housing 4, a grille assembly, a driving component, a fan 5, a foreign object detection component 6 and a control module.

[0047] The housing 4 is provided with an air port 41, which is in the shape of a circular through hole. The other structures of the housing 4 are the same as the housing 4 of the air conditioner outdoor unit in the prior art, and the specific structure thereof will not be repeated here.

[0048] The grille assembly comprises a fixing member 3, an adjusting member 2 and an elastic grille net 1.

[0049] Reference Figure 2 and 3 A support rib 42 is provided at the air outlet 41, and the shape of the support rib 42 is a cross, and the center of the cross-shaped support rib 42 is set at the center of the air outlet 41. The fixing member 3 is fixedly set at the center of the cross-shaped support rib 42. The shape of the fixing member 3 is a circular ring. The fixing member 3 is provided with a plurality of threading through holes evenly arranged along the circumference.

[0050] Reference Figure 1 The elastic grid net 1 is arranged at the air outlet 41 of the housing 4, and the elastic grid net 1 is in a plane shape. The elastic grid net 1 includes elastic warp threads 11 and elastic weft threads 12. The elastic warp threads 11 and the elastic weft threads 12 are both made of elastic materials, such as thermoplastic polyurethane, composite nylon, carbon fiber reinforced polymer, etc.

[0051] One end of the elastic warp 11 is fixedly connected to the edge of the air outlet 41 of the housing 4, and the other end passes through the threading hole on the fixing member 3 and is fixedly connected to the adjusting member 2, and the adjusting member 2 is arranged at the fixing member 3. A plurality of elastic warp threads 11 are evenly arranged along the circumference, and the fixing member 3 and the adjusting member 2 are both arranged at the center of the circumference.

[0052] It should be noted that regarding the elastic warp threads 11, although the elastic warp threads 11 in the present embodiment are fixedly connected to the adjusting member 2, this arrangement is not a limitation of the present invention. Without departing from the principles of the present invention, those skilled in the art may further adopt other arrangements in other embodiments, for example: both ends of the elastic warp threads 11 are fixedly connected to the edges of the air outlet 41, a plurality of elastic warp threads 11 are arranged at intervals along the circular air outlet 41 and intersect at the center of the air outlet 41, and the adjusting member 2 abuts against the elastic warp threads 11 at the center of the circle. This arrangement does not deviate from the basic principles of the present invention and therefore falls within the scope of protection of the present invention.

[0053] It should be noted that regarding the adjusting member 2, although the adjusting member 2 in the present embodiment is arranged at the center of the air outlet 41, this arrangement is not a limitation of the present invention. Without departing from the principle of the present invention, those skilled in the art may also adopt other arrangements in other embodiments. For example, the adjusting member 2 may be arranged away from the center of the air outlet 41, and the elastic warp 11 and the elastic weft 12 may also adjust their positions accordingly, so that the intersection of multiple elastic warp 11 is arranged at the adjusting member 2, and the adjusting member 2 is arranged at the center of the elastic weft 12. This arrangement does not deviate from the basic principle of the present invention and therefore falls within the protection scope of the present invention.

[0054] The elastic weft 12 is in the shape of a ring line, and the elastic weft 12 is fixedly connected to the plurality of elastic warps 11. In this embodiment, the elastic weft 12 is in the shape of a ring. The plurality of elastic wefts 12 are circles with different diameters, the plurality of elastic wefts 12 are concentrically arranged, and the fixing member 3 and the adjusting member 2 are both arranged at the center of the circle.

[0055] Regarding the shape of the elastic weft 12, it should be noted that although the shape of the elastic weft 12 in the present embodiment is a ring line, this arrangement is not a limitation of the present invention. Without departing from the principle of the present invention, those skilled in the art may also adopt other arrangements in other embodiments, for example: the elastic weft 12 is a straight line, the two ends of the elastic weft 12 are connected to two adjacent elastic warp threads 11, a plurality of elastic weft threads 12 are arranged between a plurality of elastic warp threads 11, some of the elastic weft threads 12 may also be connected in a ring shape, or the elastic weft threads 12 may be staggered, which does not deviate from the basic principle of the present invention and therefore falls within the scope of protection of the present invention.

[0056] The driving member is fixedly arranged at the center of the cross-shaped support rib 42 (not shown in the figure). The driving member is connected to the adjusting member 2, and the driving member can drive the adjusting member 2 to move, so that the elastic grid net 1 undergoes elastic deformation to control the gap size of the elastic grid net 1. Two embodiments of the driving member are provided below.

[0057] Embodiment 1

[0058] The driving member is an electric push rod, which can drive the adjusting member 2 to move along the axial direction of the elastic grid net 1 so as to move the adjusting member 2 away from the elastic grid net 1 or close to the elastic grid net 1 .

[0059] When the adjusting member 2 moves away from the elastic grid net 1, the elastic warp threads 11 are stretched, a portion of the elastic weft threads 12 close to the adjusting member 2 is gathered near the adjusting member 2, and a portion of the elastic weft threads 12 away from the adjusting member 2 is spaced apart from each other. Figure 4 When the adjusting member 2 moves toward the elastic grid net 1, the elastic warp threads 11 contract, the elastic weft threads 12 gathered near the adjusting member 2 expand, and the spacing between the elastic weft threads 12 decreases, as shown in FIG. Figure 5 shown.

[0060] At the same time, the elastic warp 11 passes through the threading holes on the fixing member 3, so that the elastic grid net 1 can maintain a flat state. Specifically, only the elastic warp 11 between the fixing member 3 and the adjusting member 2 is stretched and bent, while the elastic warp 11 and the elastic weft 12 between the fixing member 3 and the edge of the wind 41 are maintained on the same plane.

[0061] Embodiment 2

[0062] The driving member is a motor which can drive the adjusting member 2 to rotate (not shown in the figure).

[0063] When the adjusting member 2 rotates in the direction of tightening the elastic grid net 1, the elastic warp threads 11 are stretched and wound around the adjusting member 2, so that a portion of the elastic weft threads 12 close to the adjusting member 2 are gathered near the adjusting member 2, and the spacing between a portion of the elastic weft threads 12 away from the adjusting member 2 is increased. When the adjusting member 2 rotates in the direction of loosening the elastic grid net 1, the elastic warp threads 11 wound around the adjusting member 2 are released, in other words, the wound and stretched elastic warp threads 11 are contracted, so that the elastic weft threads 12 gathered near the adjusting member 2 are spread out, and the spacing between the elastic weft threads 12 is reduced.

[0064] At the same time, only the elastic warp threads 11 between the fixing member 3 and the adjusting member 2 are stretched and rotated by the adjusting member 2, while the elastic warp threads 11 and the elastic weft threads 12 between the fixing member 3 and the edge of the wind 41 are maintained on the same plane.

[0065] In summary, the driving members in the two embodiments can control the gap size of the elastic grille net 1. The grille assembly of the present invention realizes dynamic adjustment of the gap by moving the adjusting member 2 relative to the elastic grille net 1, which significantly improves the ventilation and protection performance. According to the application requirements, the gap of the grille can be flexibly adjusted: when it is necessary to increase the smoothness of airflow, the wind resistance is reduced by increasing the gap, which is particularly suitable for high-load operation or high-efficiency heat exchange scenarios, thereby optimizing the heat exchange efficiency and equipment stability; and when enhancing protection, the gap is reduced to effectively block dust and foreign matter, protect internal components, reduce losses and failure risks, and extend the life of the equipment. In addition, the combined structure of the elastic warp 11 and the elastic weft 12 is used to make the gap change accurately with the displacement of the adjusting member 2, further improving the response sensitivity. When the elastic warp 11 is stretched, the gap increases to increase the airflow; when it is contracted, the gap decreases to prevent foreign matter from entering. The design has a simple structure and strong adaptability, and can provide excellent ventilation and protection effects under a variety of operating conditions, reducing system complexity.

[0066] The fan 5 is arranged in the housing 4, and the fan 5 is arranged toward the air outlet 41, and the elastic grille net 1 is arranged outside the fan 5. When the fan 5 is started, the air flow speed can be accelerated. However, when the fan 5 rotates at a high speed, the elastic grille net 1 will generate wind resistance and reduce the air flow speed.

[0067] The foreign body detector 6 is specifically an optical sensor, which includes a light emitting element and a receiving element. The foreign body detector 6 is arranged outside the housing 4, and the light emitting element and the receiving element are respectively arranged on both sides of the air outlet 41. The foreign body detector 6 can detect whether there is a foreign body approaching the air outlet 41.

[0068] The driving part, the fan 5, and the foreign matter detection part 6 are all electrically connected to the control module. The control module is configured to execute the control method of the air-conditioning system. The control module can be configured to execute only the control method and not execute other operation controls of the air-conditioning system. Other operation controls can be equipped with other control modules; it can also be configured to execute other operation controls of the air-conditioning system in addition to executing the control method, that is, the control module is a comprehensive execution module, that is, executes various programs in the operation of the air-conditioning system.

[0069] The control method can control the driving member according to the rotation speed of the fan 5 and whether there are foreign objects at the air outlet 41 to adjust the gap size of the elastic grille net 1.

[0070] The control method for adjusting the elastic grille 1 according to the rotation speed of the fan 5 is specifically as follows: when the rotation speed of the fan 5 increases, the wind resistance is reduced and the air flow is improved, so as to meet the heat dissipation requirements under high load and high temperature conditions and ensure the stable operation of the equipment; when the rotation speed of the fan 5 decreases, the gap of the elastic grille 1 is reduced to form a tighter barrier to block foreign objects from entering the interior of the equipment and prevent malfunctions caused by foreign objects intrusion. This automatic adjustment mechanism does not require manual intervention and realizes flexible adjustment of the elastic grille 1, which enhances the protection effect while ensuring efficient ventilation of the air conditioner, significantly improves the reliability, service life and energy efficiency of the equipment, and provides a highly adaptive and energy-saving operation mode for the system.

[0071] The control method for adjusting the elastic grille net 1 according to the foreign matter at the air outlet 41 is specifically as follows: when there is a foreign matter at the air outlet 41, the gap of the elastic grille net 1 is reduced to form an effective physical barrier to prevent the entry of foreign matter, protect key components from blockage and wear, and reduce the occurrence of failures and maintenance requirements; when there is no foreign matter at the air outlet 41, the gap of the elastic grille net 1 is increased to reduce wind resistance and ensure normal ventilation and heat exchange effects. Compared with the traditional fixed grille structure, the present invention provides dynamic foreign matter protection while ensuring ventilation efficiency, prolongs the service life of the equipment, reduces maintenance costs, and realizes unattended protection management.

[0072] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A grille assembly, characterized in that: It comprises an elastic grid net (1) and an adjusting member (2), wherein the edge of the elastic grid net (1) is fixedly arranged, and the adjusting member (2) is connected to the middle part of the elastic grid net (1); The adjusting member (2) is movable relative to the elastic grid net (1) to cause the elastic grid net (1) to undergo elastic deformation, thereby adjusting the gap size of the elastic grid net (1).

2. The grille assembly according to claim 1, characterized in that The adjusting member (2) is arranged at the center of the elastic grid net (1), or the adjusting member (2) is arranged offset from the center.

3. The grille assembly according to claim 1, characterized in that The elastic grid net (1) comprises: a plurality of elastic warp threads (11), the elastic warp threads (11) being in a stretched state, the plurality of elastic warp threads (11) being arranged at intervals along a circumference, the adjusting member (2) being connected to the plurality of elastic warp threads (11), and being able to drive the elastic warp threads (11) to stretch or contract when the adjusting member (2) moves; a plurality of elastic weft threads (12), wherein the elastic weft threads (12) are fixedly connected to the plurality of elastic warp threads (11), and the plurality of elastic weft threads (12) are arranged at intervals along the extension direction of the elastic warp threads (11); When the adjusting member (2) moves to stretch the elastic warp threads (11), a portion of the elastic weft threads (12) gathers near the adjusting member (2), and the spacing between the other portion of the elastic weft threads (12) increases. When the adjusting member (2) moves to shrink the elastic warp threads (11), the elastic weft threads (12) near the adjusting member (2) expand, and the spacing between the remaining elastic weft threads (12) decreases.

4. The grille assembly according to claim 3, characterized in that Both ends of the elastic warp thread (11) are fixedly arranged, and a plurality of the elastic warp threads (11) are arranged at intervals along the circumference and intersect at the center of the circumference; and / or One end of the elastic warp thread (11) is fixedly arranged, and the other end is connected to the adjusting member (2); Both ends of the elastic warp threads (11) are fixedly arranged, and a plurality of the elastic warp threads (11) are arranged at intervals along the circumference and intersect at the eccentricity of the circumference.

5. The grille assembly according to claim 3, characterized in that: The elastic weft (12) is in the shape of a circular ring, a plurality of elastic wefts (12) with different diameters are concentrically arranged, and the adjusting member (2) is arranged at the center of the elastic weft (12).

6. The grille assembly according to claim 3, characterized in that: The grille assembly further comprises: A fixing member (3) is fixedly arranged relative to the edge of the elastic grid net (1), and a plurality of threading through holes are arranged on the fixing member (3), and the elastic warp threads (11) are threaded through the threading through holes.

7. An air conditioner outdoor unit, characterized in that: It comprises a housing (4) and a grille assembly according to any one of claims 1 to 6, wherein the housing (4) is provided with an air outlet (41), and the grille assembly is arranged at the air outlet (41).

8. The air conditioner outdoor unit according to claim 7, characterized in that: The air conditioner outdoor unit also includes a driving member, the driving member is connected to the adjusting member (2), and the driving member can drive the adjusting member (2) to move relative to the elastic grille net (1) to control the gap size of the elastic grille net (1).

9. The air conditioner outdoor unit according to claim 8, characterized in that: The air conditioner outdoor unit further comprises a fan (5) and a control module, the fan (5) being arranged at the air outlet (41), and the fan (5) and the driving element being electrically connected to the control module; When the speed of the fan (5) increases, the control module can increase the gap of the elastic grille (1); When the rotation speed of the fan (5) decreases, the control module can reduce the gap of the elastic grille net (1).

10. The air conditioner outdoor unit according to claim 8, characterized in that: The air conditioner outdoor unit further comprises a foreign object detection component (6) and a control module, wherein the foreign object detection component (6) is used to detect whether a foreign object is present at the air outlet (41), and the foreign object detection component (6) and the driving component are both electrically connected to the control module; When the foreign object detection element (6) detects the presence of a foreign object at the air outlet (41), the control module can reduce the gap of the elastic grille net (1).

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