Guard grid mechanism and air conditioner thereof

Abstract

The application discloses a protective grid mechanism and an air conditioner thereof, and belongs to the technical field of energy saving and environmental protection. The grid mechanism comprises an outer ring, a first sliding channel and a second sliding channel which are arranged on the inner ring wall of the outer ring, a center disc which is coaxially arranged with the outer ring, a plurality of connecting columns which are arranged on the outer side wall of the center disc, a plurality of rotating swing leaf assemblies and an electromagnetic assembly. The rotating swing leaf assembly comprises a fan-shaped swing leaf, a first transmission pair and a second transmission pair which are connected to the outer end of the fan-shaped swing leaf, the first transmission pair is embedded in the first sliding channel, and the second transmission pair is embedded in the second sliding channel. When the electromagnetic assembly is forwardly electrified, the magnetic pole unit drives the first transmission pair to move along the first sliding channel in a first direction, and synchronously drives the second transmission pair to move along the second sliding channel in a second direction, so that all the fan-shaped swing leaves rotate in the same direction to change the relative angle with the air outlet. Finally, the grid can meet the safety requirements such as hand clamping prevention and the demand of maximum air permeability to reduce noise.

Description

Technical Field

[0001] This invention relates to the field of air conditioner technology, and more particularly to a protective grid mechanism and an air conditioner thereof. Background Technology

[0002] The outdoor unit grille of an air conditioner is a crucial safety structure, preventing accidental hand injuries from the axial fan blades. However, traditional fixed grilles continuously obstruct airflow, increasing wind resistance and significantly raising operating noise, severely reducing system energy efficiency and user experience. Existing air conditioner grille solutions often aim to reduce drag and noise by reducing grille wall thickness, optimizing rib arrangement to increase airflow, or improving airflow paths. However, there is a trade-off between grille material strength and air permeability; the room for optimizing air permeability is very small based on existing grilles, resulting in negligible improvement in wind resistance. Therefore, there is an urgent need for a dynamic grille device with controllable air permeability, ensuring that it prevents hand penetration when a hand is detected, while maintaining high air permeability when no one is nearby.

[0003] For example, Chinese patent (CN208871733U) discloses an air conditioner outdoor unit air outlet protection device and an air conditioner having the same. Through the coordinated action of multiple active and multiple passive air outlet grilles, the air outlet of the outdoor unit can be opened or closed, preventing dust, leaves, snow, insects, mice, etc., from entering the outdoor unit and affecting the air conditioner's heat exchange efficiency or causing icing that could prevent the outdoor unit from starting or damage the fan blades. It also prevents the outdoor unit's air from blowing directly onto passersby. However, the primary function of this grille is to prevent objects from entering; it does not consider sufficient air permeability or noise reduction. For example, Chinese patent (CN210088992U) discloses a fan cover grille for an outdoor air conditioner unit. The air guiding structure consists of a vertically arranged main air guide plate and an inclined secondary air guide plate. By gradually reducing the spacing between the main air guide plate and the secondary air guide plate, the air outlet channel is gradually reduced. This can increase the air outlet speed without changing the air outlet volume, reduce the diffusion of the air outlet air, increase the impact force of the air outlet air, and ultimately promote the air outlet air to be discharged along the louvers of the louvers, reducing the obstruction of the louvers to the air outlet of the outdoor air conditioner unit. However, this grille does not consider a sufficiently high air permeability. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a protective grid mechanism and its air conditioner to solve the technical problem that the existing air conditioning grid cannot be compatible with both air permeability and prevention of accidental injury.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: In a first aspect, embodiments of the present invention provide a protective grid mechanism, comprising: An outer ring, wherein a first slide rail and a second slide rail are provided on the inner ring wall of the outer ring; A central disk, which is coaxially arranged with the outer ring, and a plurality of connecting posts are provided on the outer side wall of the central disk; A plurality of rotating blade assemblies, wherein the outer end of each rotating blade assembly is movably connected to the outer ring, and the inner end of each rotating blade assembly is movably connected to the connecting post; and An electromagnetic component, comprising the same number of magnetic pole units as the rotating blade assembly; The rotating blade assembly includes: a fan-shaped blade, a first transmission pair and a second transmission pair connected to the outer end of the fan-shaped blade, the first transmission pair being embedded in the first slide rail, and the second transmission pair being embedded in the second slide rail; when the electromagnetic component is positively energized, the magnetic pole unit drives the first transmission pair to move along the first slide rail in a first direction, and simultaneously drives the second transmission pair to move along the second slide rail in a second direction, so that all the fan-shaped blades rotate in the same direction to change their relative angle with the air outlet.

[0006] The first slide rail extends circumferentially along the inner wall of the outer ring, and the second slide rail extends axially along the inner wall of the outer ring.

[0007] The magnetic pole unit of the electromagnetic component is embedded at the far end of the first slide.

[0008] The first transmission pair includes a magnetic slider and a shaft connecting rod hinged to the side wall of the magnetic slider. The magnetic slider is embedded in the first slide rail, and the outer end of the shaft connecting rod is rotatably connected to the outer end of the fan-shaped blade.

[0009] The magnetic slider has protrusions at both the top and bottom, which abut against the top and bottom walls of the first slide rail, respectively.

[0010] The second transmission pair is a cylindrical or spherical component that can be rolled and embedded in the second slide rail, and the cylindrical or spherical component is rotatably connected to the outer end of the fan-shaped blade.

[0011] The fan-shaped blade includes: a blade body, a first connecting hole at the inner end of the blade body, a second connecting hole at the outer end of the blade body, and a blade shaft. The first connecting hole is rotatably connected to the connecting post, the second connecting hole is rotatably connected to the second transmission pair, and the blade shaft is rotatably connected to the shaft connecting rod.

[0012] The main body of the swing blade is also provided with an array of ventilation holes.

[0013] The electromagnetic component includes a series of electromagnetic coils and an electromagnet core disposed within the electromagnetic coils; the inner wall of the outer ring is also provided with a wire groove, and the wires of the series electromagnetic coils are disposed in the wire groove.

[0014] The outer ring is also provided with a cover, which includes an annular body and a snap-fit ​​part protruding from the bottom of the annular body. The snap-fit ​​part snaps into the outer ring, and the inner ring surface of the annular body shields the electromagnetic component.

[0015] The protective grid mechanism also includes a controller and a proximity detection sensor electrically connected to the controller. When the proximity detection sensor detects a living person approaching the rotating blade assembly, it controls the electromagnetic component to be energized to drive the fan-shaped blades to rotate, thereby reducing the air outlet.

[0016] Secondly, embodiments of the present invention also provide an air conditioner, the air conditioner including the protective grid mechanism as described in any of the above claims.

[0017] The protective grid mechanism and air conditioner of this invention monitor the approach of a hand in real time using a proximity detection sensor. The air conditioner controller further controls the opening and closing of the fan-shaped ribs based on whether a living body or foreign object, such as a hand, is near the grid. When no hand or other object is near, the electromagnet coil is energized in the forward direction, attracting the magnetic slider in the first slide rail and causing the fan-shaped blades to rotate. This makes the fan-shaped blades nearly parallel to the airflow direction, minimizing wind resistance and reducing noise in the outdoor unit. When the proximity detection sensor detects a hand or other object approaching, the electromagnet coil is instantly energized in the reverse direction, repelling the magnetic slider in the first slide rail and causing the fan-shaped blades to rotate in the reverse direction. This makes the fan-shaped blades nearly perpendicular to the airflow direction, preventing fingers from entering while maintaining airflow permeability and ensuring normal operation of the outdoor unit. Reducing wind resistance and increasing airflow permeability helps improve the operating efficiency of the air conditioner, achieving energy saving and environmental protection.

[0018] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are described in detail below. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the protective grid mechanism according to an embodiment of the present invention.

[0020] Figure 2 This is an exploded view of the protective grid mechanism according to an embodiment of the present invention.

[0021] Figure 3 This is a top view of the protective grid mechanism in the open state according to an embodiment of the present invention.

[0022] Figure 4 for Figure 3 The diagram shows a magnified view of part B.

[0023] Figure 5 This is a partially enlarged structural diagram of the protective grid mechanism of the present invention in the open state of the fan-shaped swing blades.

[0024] Figure 6 This is a top view of the protective grid mechanism in the closed state according to an embodiment of the present invention.

[0025] Figure 7 for Figure 6 The diagram shows a magnified view of a portion of the C structure.

[0026] Figure 8 This is a partially enlarged structural diagram of the protective grid mechanism in the open state according to an embodiment of the present invention.

[0027] Figure 9 This is a schematic diagram of the fan-shaped swing blade portion of the protective grid mechanism according to an embodiment of the present invention.

[0028] Figure 10 This is a partially enlarged structural diagram of the outer ring of the protective grid mechanism according to an embodiment of the present invention.

[0029] Figure 11 This is a schematic diagram of the central disk portion of the protective grid mechanism according to an embodiment of the present invention.

[0030] Figure 12 This is a partial structural diagram of the electromagnetic components of the protective grid mechanism according to an embodiment of the present invention.

[0031] Figure 13 This is a schematic diagram of the first transmission pair of the protective grid mechanism according to an embodiment of the present invention.

[0032] Figure 14 This is a schematic diagram of the cover portion of the protective grid mechanism according to an embodiment of the present invention.

[0033] Explanation of reference numerals in the attached figures: Protective grid mechanism 100, outer ring 1, first slide rail 1a, second slide rail 1b, mounting groove 1c, buried wire groove 1e, central disc 2, connecting column 2a, fan-shaped oscillating blade 3, first connecting hole 3a, second connecting hole 3b, oscillating blade shaft 3c, array ventilation hole 3d, oscillating blade body 3e, second transmission pair 4, first transmission pair 5, protrusion 5a, top 5b, magnetic slider 5c, second magnetic slider 5d, first magnetic slider 5e, electromagnetic assembly 6, first electromagnet 6a, second electromagnet 6b, electromagnetic coil 6c, electromagnet core 6d, cover 7, snap-fit ​​part 7a, inner ring surface 7b, ring body 71, shaft connecting rod 8a, connecting shaft 8b. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0037] Furthermore, 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 technical features indicated. In this invention, terms such as "installed," "connected," "joined," and "fixed" should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0038] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0039] The outdoor unit grille of an air conditioner is a crucial safety structure, preventing accidental hand entry and resulting cuts from the axial fan blades. However, traditional fixed grilles continuously obstruct airflow, increasing wind resistance and significantly raising operating noise, severely reducing system energy efficiency and user experience. Existing air conditioner grille solutions often aim to reduce grille wall thickness, optimize rib arrangement to increase airflow, or improve airflow path to reduce drag and noise. However, there is a trade-off between grille material strength and air permeability; the space for optimizing air permeability is very small based on existing grilles, and the improvement in wind resistance is negligible. Therefore, there is an urgent need for a dynamic grille device with controllable air permeability that can prevent hand entry when a hand is detected, while maintaining high air permeability when no one is nearby, thereby improving operating efficiency. Based on the above requirements, a protective grille mechanism 100 that combines air permeability and anti-pinch structure is urgently needed.

[0040] Please see Figures 1 to 14 In this embodiment, the protective grid mechanism 100 includes: Outer ring 1, the inner ring wall of the outer ring 1 is provided with a first slide rail 1a and a second slide rail 1b; A central disk 2 is coaxially arranged with the outer ring 1, and a plurality of connecting posts 2a are provided on the outer side wall of the central disk 2.

[0041] Several rotating blade assemblies, the outer end of the rotating blade assembly is movably connected to the outer ring 1, and the inner end of the rotating blade assembly is movably connected to the connecting post 2a. The outer end refers to the end of the rotating blade assembly near the outer ring 1, and the inner end refers to the end near the central disk 2.

[0042] An electromagnetic component 6 is connected to the outer ring 1. The electromagnetic component 6 includes the same number of magnetic pole units (including S and N poles) as the rotating blade assembly. For example, the N and S poles of the first electromagnet 6a and the second electromagnet 6b are both referred to as the magnetic pole unit. Each magnetic pole unit is aligned with one set of rotating blade assemblies for driving the rotating blade assembly to rotate.

[0043] The rotating blade assembly includes: a fan-shaped blade 3, a first transmission pair 5 and a second transmission pair 4 connected to the outer end of the fan-shaped blade 3, the first transmission pair 5 being embedded in the first slide rail 1a, and the second transmission pair 4 being embedded in the second slide rail 1b; when the electromagnetic component 6 is energized in the forward direction, the magnetic pole unit of the electromagnet drives the first transmission pair 5 to move along the first slide rail 1a in a first direction, and simultaneously drives the second transmission pair 4 to move along the second slide rail 1b in a second direction, so that all the fan-shaped blades 3 rotate in the same direction to change their relative angle with the air outlet; when the electromagnetic component 6 is energized in the reverse direction, the magnetic pole unit of the electromagnet drives the first transmission pair 5 to move along the first slide rail 1a in the reverse direction of the first direction, and simultaneously drives the second transmission pair 4 to move along the second slide rail 1b in the reverse direction of the second direction, so that all the fan-shaped blades 3 rotate synchronously in the reverse direction to change their relative angle with the air outlet, where the air outlet refers to the exhaust outlet of the axial fan blades of the outdoor unit of the air conditioner. After several magnetic pole units are connected in series, the first and second ends of the winding are led out. If the first end is connected to the positive terminal of the power supply and the second end is connected to the negative terminal of the power supply, the current is in the forward direction; otherwise, if the first end is electrically connected to the negative terminal of the power supply and the second end is electrically connected to the positive terminal of the power supply, the current is in the reverse direction.

[0044] Please refer to it again. Figure 1 and Figure 2 The outer ring 1 is a circular ring with a certain height along its axis. The inner ring surface is the inner wall, and the outer ring surface is the outer wall. Several ribs are provided on the outer wall to improve the strength of the outer ring 1 and facilitate heat dissipation. The central disk 2 is a circular disk with several connecting posts 2a extending radially from its edge.

[0045] In this embodiment, the protective grid mechanism 100 has several rotating blade assemblies movably connected between the outer ring 1 and the central disk 2. All rotating blade assemblies are controlled by the electromagnetic assembly 6 to rotate about the radial direction of the central disk 2. When the rotating blade assemblies are rotated to a first angle, the fan-shaped blades 3 of the rotating blade assemblies are approximately perpendicular to the air outlet direction of the air conditioner's outdoor unit. At this time, the gap between adjacent fan-shaped blades 3 is small, preventing fingers or other objects from entering the axial fan blades and avoiding injury to living objects that may enter, thus ensuring high safety. When the electromagnetic assembly drives all fan-shaped blades 3 to rotate to a second angle, the fan-shaped blades 3 are approximately parallel to the air outlet direction of the axial fan blades. At this time, wind resistance is minimal, air permeability is high, wind resistance noise is reduced, air conditioner efficiency is improved, and user experience is enhanced.

[0046] Please refer to it again. Figure 10In this embodiment, the first slide rail 1a extends circumferentially along the inner wall of the outer ring 1, and the second slide rail 1b extends axially along the inner wall of the outer ring 1. That is, the first slide rail 1a is recessed in the circumferential direction of the inner wall of the outer ring 1, and the second slide rail 1b is recessed in the circumferential direction of the inner wall of the outer ring 1. At this time, the first slide rail 1a and the second slide rail 1b are approximately perpendicular to each other.

[0047] Both the first transmission pair 5 and the second transmission pair 4 are connected to the outer end of the fan-shaped blade 3. Therefore, when the first transmission pair 5 moves along the first slide rail 1a, it can drive the second transmission pair 4 to move along the second slide groove 1b. The inner end of the fan-shaped blade 3 is rotatably connected to the central disk 2. Therefore, during the movement of the first transmission pair 5 and the second transmission pair 4, the rotation of the fan-shaped blade 3 is realized simultaneously. During the rotation, the relative angle between the blade surface of the fan-shaped blade 3 and the air outlet direction changes, thereby changing the gap between adjacent fan-shaped blades 3, so as to achieve the dual technical goals of preventing pinching and improving air permeability.

[0048] Furthermore, the end of the first slide rail 1a is provided with a mounting groove 1c, and each magnetic pole unit of the electromagnetic component 6 is respectively embedded in the far end of one of the first slide rails 1a, that is, the first electromagnet 6a is installed in one of the mounting grooves 1c.

[0049] Please refer to it again. Figure 8 and Figure 13 The first transmission pair 5 includes: a magnetic slider 5c and a shaft connecting rod 8a hinged to the side wall of the magnetic slider 5c. The magnetic slider 5c is embedded in the first slide rail 1c, and the outer end of the shaft connecting rod 8a is rotatably connected to the outer end of the fan-shaped blade 3.

[0050] Specifically, the magnetic slider 5c is embedded in the first slide rail 1a, meaning it can slide within the first slide rail 1a but will not detach from it. The shaft connecting rod 8a and the magnetic slider 5c can swing along the length of the first slide rail 1a. The magnetic slider 5c is a block-shaped component with magnetic attraction properties, and its inner surface is provided with a connecting ear, which is hinged to the end of the shaft connecting rod 8a via a connecting shaft 8b.

[0051] The magnetic slider 5c has protrusions 5a at both its top 5b and bottom. The protrusions 5a abut against the top and bottom walls of the first slide rail 1a, respectively, to reduce the contact area between the magnetic slider 5c and the first slide rail 1a and reduce the frictional resistance between them during the sliding process.

[0052] Please refer to it again. Figure 2 and Figure 8The second transmission pair 4 is a cylindrical or spherical component that can be rolled and embedded in the second slide rail 1b. The cylindrical or spherical component is rotatably connected to the outer end of the fan-shaped blade 3. The second transmission pair 4 can roll axially in the outer ring 1 within the second slide rail 1b. When the second transmission pair 4 rolls to the bottom of the second slide rail 1b, the fan-shaped blade 3 is approximately parallel to the air outlet direction, at which point the wind resistance is minimal. Conversely, if the second transmission pair 4 rolls to the top of the second slide rail 1b, the fan-shaped blade 3 is approximately perpendicular to the air outlet direction, at which point the wind resistance is maximum but the risk of pinching hands is prevented.

[0053] Please refer to it again. Figure 9 The fan-shaped oscillating blade 3 includes: an oscillating blade body 3e, a first connecting hole 3a disposed at the inner end of the oscillating blade body 3e, a second connecting hole 3b disposed at the outer end of the oscillating blade body 3e, and an oscillating blade shaft 3c. The first connecting hole 3a is rotatably connected to the connecting post 2a, the second connecting hole 3b is rotatably connected to the second transmission pair 4, and the oscillating blade shaft 3c is rotatably connected to the shaft connecting rod 8a. Specifically, the oscillating blade body 3e is a fan-shaped or approximately fan-shaped structural component, with its inner end being the center of the fan shape and its outer end being the edge of the fan shape. When the controlled electromagnetic component 6 rotates, the fan-shaped oscillating blade 3 uses the connecting post 2a, which is rotatably connected to the first connecting hole 3a, as its axis of rotation. The end where the second connecting hole 3b is located slides in the first slide groove 1a following the first transmission pair 5, and the oscillating blade shaft 3c slides in the second slide groove 1b following the second transmission pair 4. Due to the relative perpendicular positional relationship between the first slide groove 1a and the second slide groove 1b, the rotation of the oscillating blade body 3e is realized.

[0054] The main body 3e of the oscillating blades is also provided with an array of ventilation holes 3d. When the blade surface of the fan-shaped oscillating blades 3 is perpendicular or approximately perpendicular to the air outlet direction, the gas output by the axial flow fan blades is discharged through the array of ventilation holes 3d, avoiding excessive resistance to the gas from the grille. It should be noted that, in this state, some gas can also be discharged through the gaps between adjacent fan-shaped oscillating blades 3. The array of ventilation holes 3d is designed to reduce wind resistance and noise while preventing hand pinching.

[0055] Please refer to it again. Figure 12 The electromagnetic component 6 includes a plurality of electromagnetic coils 6c connected in series and an electromagnet core 6d disposed in each electromagnetic coil 6c. Figure 12As shown, a first electromagnet 6a and an adjacent second electromagnet 6b are electrically connected via an extension wire from the end tap of an electromagnetic coil 6c, so that the magnetic pole units of all electromagnet cores 6d change synchronously, ultimately achieving synchronous rotation of all fan-shaped blades 3 in the same direction. When the electromagnetic component 6 is energized in the forward direction, its magnetic force on the first and second transmission pairs is along the first and second directions, respectively; when the electromagnetic component 6 is energized in the reverse direction, it generates magnetic forces on the first and second transmission pairs in directions opposite to both the first and second directions, specifically as follows: Figure 4 and Figure 5 As shown.

[0056] Please refer to it again. Figure 10 The inner wall of the outer ring 1 is also provided with a wire groove 1e, and the extension tap wire of the electromagnetic coil 6c is buried in the wire groove 1e to prevent the electromagnetic coil 6c from being exposed and damaged due to vibration during the operation of the grid.

[0057] Please refer to it again. Figure 1 and Figure 14 The outer ring 1 is further provided with a cover 7, which includes an annular body 71 and a snap-fit ​​portion 7a protruding from the bottom of the annular body 71. The snap-fit ​​portion 7a snaps onto the outer ring 1, and the inner annular surface 7b of the cover 7 is used to cover the electromagnetic coil 6c and / or the electromagnet core 6d. In this embodiment, the snap-fit ​​portion 7a covers the electromagnetic coil 6c and its internal electromagnet core 6d, and the inner annular surface of the annular body 71 covers the wire tap portion extending from the end of the electromagnetic coil.

[0058] Furthermore, the protective grid mechanism 100 in this embodiment also includes a controller (such as an MCU) and a proximity detection sensor (such as a photoelectric sensor or lidar) electrically connected to the controller. When the proximity detection sensor detects a living person approaching the rotating blade assembly, it controls the electromagnetic component 6 to be energized to drive the fan-shaped blade 3 to rotate, reducing the air outlet. Conversely, the electromagnetic component 6 drives the fan-shaped blade 3 to rotate in the opposite direction to expand the air outlet to the maximum, reducing wind resistance and noise.

[0059] Please refer to the following again. Figures 1 to 14 The working process of the grid mechanism 100 based on dual slide rail constraint and magnetic attraction drive in this embodiment is briefly described as follows: When the air conditioner receives a command to open the grille, such as Figure 4 As shown, the first electromagnet 6a and the second electromagnet 6b are forward energized, generating forces F1 and F2 on the first magnetic slider 5e respectively, causing the first magnetic slider 5e to move rapidly to the left, as shown. Figure 5As shown, the first magnetic slider 5e has moved to the leftmost position, and the second transmission pair 4 has moved to the bottommost position. This makes the blade surface of the fan-shaped swing blade 3 parallel to the wind direction. Similarly, the second magnetic slider 5d is also subjected to a leftward force generated by the two adjacent electromagnets, moving to the leftmost position of the first slide groove 1a where the second magnetic slider 5d is located, thus causing the fan-shaped swing blade 3 connected to it to be parallel to the wind direction. This makes the grille open, as shown. Figure 3 The state shown.

[0060] When the air conditioner receives the grille closing command, such as Figure 7 As shown, the first electromagnet 6a and the second electromagnet 6b are energized in opposite directions, generating forces F1' and F2' on the first magnetic slider 5e respectively, causing the first magnetic slider 5e to move rapidly to the right, as shown. Figure 5 As shown, the first magnetic slider 5e has moved to the far right, and the second transmission pair 4 has moved to the top. This makes the blade surface of the fan-shaped blade 3 perpendicular to the wind direction, and the same applies to the other fan-shaped blades, thus causing the grille to be in a closed state, as shown. Figure 6 The state shown.

[0061] This embodiment also provides an air conditioner, which includes a grille mechanism 100 based on dual slide rail constraint and magnetic drive as described above, which is installed on the outdoor unit housing of the air conditioner.

[0062] The protective grid mechanism and air conditioner of this embodiment monitor the approach of a hand in real time using a proximity detection sensor. The air conditioner controller further controls the opening and closing of the fan-shaped ribs based on whether a living body or foreign object, such as a hand, is near the grid. When no hand or other object is near, the electromagnet coil is energized in the forward direction, attracting the magnetic slider in the first slide rail and causing the fan-shaped blades to rotate. This makes the fan-shaped blades nearly parallel to the airflow direction, minimizing wind resistance and reducing noise in the outdoor unit. When the proximity detection sensor detects a hand or other object approaching, the electromagnet coil is instantly energized in the reverse direction, repelling the magnetic slider in the first slide rail and causing the fan-shaped blades to rotate in the reverse direction. This makes the fan-shaped blades nearly perpendicular to the airflow direction, preventing fingers from entering while maintaining airflow permeability and ensuring normal operation of the outdoor unit. Reducing wind resistance and increasing airflow permeability helps improve the operating efficiency of the air conditioner, achieving energy saving and environmental protection.

[0063] The above examples are merely illustrative of the technical content of the present invention to facilitate easier understanding by the reader, but do not imply that the implementation of the present invention is limited to these examples. Any technical extensions or re-creations made based on the present invention are protected by the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. A protective grid mechanism, characterized in that, include: The outer ring has a plurality of first slides and a plurality of second slides on its inner ring wall; A central disk, which is coaxially arranged with the outer ring, and a plurality of connecting posts are provided on the outer side wall of the central disk; Several rotating blade assemblies, the outer end of the rotating blade assembly is movably connected to the outer ring, and the inner end of the rotating blade assembly is movably connected to the connecting post; An electromagnetic component, comprising the same number of magnetic pole units as the rotating blade assembly; The rotating blade assembly includes: a fan-shaped blade, a first transmission pair and a second transmission pair connected to the outer end of the fan-shaped blade, the first transmission pair being embedded in the first slide rail, and the second transmission pair being embedded in the second slide rail; when the electromagnetic component is energized in the forward direction, the magnetic pole unit drives the first transmission pair to move along the first slide rail in a first direction, and simultaneously drives the second transmission pair to move along the second slide rail in a second direction, so that all the fan-shaped blades rotate in the same direction to change their relative angle with the air outlet; when the electromagnetic component is energized in the reverse direction, all the fan-shaped blades rotate synchronously in the reverse direction.

2. The protective grid mechanism according to claim 1, characterized in that, The first slide rail extends circumferentially along the inner wall of the outer ring, and the second slide rail extends axially along the inner wall of the outer ring.

3. The protective grid mechanism according to claim 2, characterized in that, The magnetic pole unit of the electromagnetic component is embedded at the far end of the first slide.

4. The protective grid mechanism according to claim 1, characterized in that, The first transmission pair includes a magnetic slider and a shaft connecting rod hinged to the side wall of the magnetic slider. The magnetic slider is embedded in the first slide rail, and the outer end of the shaft connecting rod is rotatably connected to the outer end of the fan-shaped blade.

5. The protective grid mechanism according to claim 4, characterized in that, The magnetic slider has protrusions at both the top and bottom, and the protrusions abut against the top and bottom walls of the first slide rail, respectively.

6. The protective grid mechanism according to claim 5, characterized in that, The second transmission pair is a cylindrical or spherical component that can be rolled and embedded in the second slide rail, and the cylindrical or spherical component is rotatably connected to the outer end of the fan-shaped blade.

7. The protective grid mechanism according to claim 1, characterized in that, The fan-shaped blade includes: a blade body, a first connecting hole at the inner end of the blade body, a second connecting hole at the outer end of the blade body, and a blade shaft. The first connecting hole is rotatably connected to the connecting post, the second connecting hole is rotatably connected to the second transmission pair, and the blade shaft is rotatably connected to the shaft connecting rod.

8. The protective grid mechanism according to claim 7, characterized in that, The main body of the swing blade is also provided with an array of ventilation holes.

9. The protective grid mechanism according to any one of claims 1 to 8, characterized in that, The electromagnetic component includes an electromagnetic coil connected in series and an electromagnet core disposed within the electromagnetic coil; the inner wall of the outer ring is also provided with a wire groove, and the wires connected in series with the electromagnetic coil are disposed in the wire groove.

10. The protective grid mechanism according to claim 9, characterized in that, The outer ring is also provided with a cover, which includes an annular body and a snap-fit ​​part protruding from the bottom of the annular body. The snap-fit ​​part snaps into the outer ring, and the inner ring surface of the annular body shields the electromagnetic component.

11. The protective grid mechanism according to claim 9, characterized in that, The protective grid mechanism also includes a controller and a proximity detection sensor electrically connected to the controller. When the proximity detection sensor detects a living person approaching the rotating blade assembly, it controls the electromagnetic component to be energized to drive the fan-shaped blades to rotate, thereby reducing the air outlet.

12. An air conditioner, characterized in that, The air conditioner includes a protective grid mechanism as described in any one of claims 1 to 11.

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