Air conditioner, courtyard indoor unit, courtyard indoor unit panel assembly and control method of courtyard indoor unit panel assembly

Abstract

The invention provides an air conditioner, a courtyard indoor unit, a courtyard indoor unit panel assembly and a control method thereof.The courtyard indoor unit panel assembly comprises a panel frame, a grille cover, a lifting control mechanism, a dust collection layer and a folding and unfolding control mechanism, the grille cover can cover a through opening of the panel frame, and the grille cover is provided with an air inlet grille; the lifting control mechanism controls the grating cover to lift relative to the panel frame, and the folding control mechanism controls the dust collection layer to switch between an unfolded state and a folded state; in the unfolding state, the dust collection layer covers the air inlet grille so as to close the air inlet grille; in the folding state, the dust collection layer does not cover the air inlet grille so as to open the air inlet grille. The courtyard machine panel assembly can control the grating cover to ascend and descend relative to the panel frame so that a user can conveniently clean the filter screen, filth blockage can be effectively prevented from being scattered to the indoor environment in the descending and moving process of the grating cover, the workload of the user for cleaning the indoor environment is relieved, and the user experience is improved. And insects can be prevented from entering from the air inlet grille when the equipment is not used for a long time.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to an air conditioner, a patio indoor unit, a patio unit panel assembly and a control method thereof. Background Art

[0002] A ceiling air conditioner, also known as a ceiling air conditioner, ceiling-mounted air conditioner, or embedded indoor air conditioner, typically has an air inlet grille located in the middle of the panel, with air outlets arranged around the perimeter of the grille. A filter is also installed inside the air conditioner near the grille to filter the air entering through the grille.

[0003] As the air conditioner is used for a longer time, the filter installed at the air inlet grille of the ceiling unit will accumulate a lot of dust and dirt and become dirty and clogged, which is prone to produce a large number of harmful substances such as bacteria or viruses. These harmful substances circulate indoors with the air, polluting the indoor air, spreading diseases, and seriously endangering human health. Moreover, when the filter is clogged, it will increase the air circulation resistance and increase the heat exchange energy consumption. Therefore, the filter of the ceiling unit needs to be cleaned.

[0004] In order to facilitate users to clean the filter of the ceiling machine, the existing ceiling machine is provided with a lifting control mechanism, which can control the lifting and movement of the air inlet grille cover relative to the panel frame of the ceiling machine. When the filter needs to be cleaned, the lifting control mechanism controls the air inlet grille cover to move downward to open the panel frame of the ceiling machine for cleaning the filter; when the filter cleaning operation is completed, the lifting control mechanism controls the air inlet grille cover to rise and cover the panel frame of the ceiling machine to realize heat exchange operation.

[0005] However, when the lifting control mechanism of the existing ceiling machine controls the air inlet grille cover to move downward to open the panel frame of the ceiling machine, the panel structure is prone to shaking, which will cause dust, dirt and other blockages on the filter to fall off. Even if there is no shaking, the blockages accumulated on the filter near the lower side of the air inlet grille cover will also fall off under the action of their own weight during the downward movement of the air inlet grille cover, and the scattered blockages will pass through the air inlet grille and scatter into the indoor environment, thereby polluting the indoor environment over a large area, increasing the workload of users in cleaning the indoor environment, and thus affecting the user experience. Summary of the Invention

[0006] In order to achieve the first purpose of the present invention, the present invention provides a ceiling machine panel assembly, which can control the lifting and movement of the grille cover relative to the panel frame to facilitate the user to clean the filter, and can effectively prevent dirt and blockages from being scattered into the indoor environment during the lowering movement of the grille cover, thereby reducing the user's workload of cleaning the indoor environment, thereby improving the user experience, and can prevent insects from entering through the air inlet grille when the equipment is not used for a long time, thereby ensuring the safety of the equipment.

[0007] In order to achieve the second object of the present invention, the present invention provides a control method for the above-mentioned rooftop machine panel assembly.

[0008] In order to achieve the third object of the present invention, the present invention provides a roof indoor unit having the above-mentioned roof machine panel assembly or executing the control method of the above-mentioned roof machine panel assembly.

[0009] In order to achieve the fourth object of the present invention, the present invention provides an air conditioner having the above-mentioned patio indoor unit.

[0010] In order to achieve the first purpose of the present invention, the present invention provides a roof machine panel assembly, including a panel frame, a grille cover, a lifting control mechanism, a dust collecting layer and a retraction and extension control mechanism. The panel frame is provided with a through opening, the grille cover can cover the through opening, and the grille cover is provided with an air inlet grille. The lifting control mechanism can control the grille cover to lift and move relative to the panel frame, and the retraction and extension control mechanism can control the dust collecting layer to switch between an expanded state and a retracted state; in the expanded state, the dust collecting layer covers the air inlet grille to close the air inlet grille; in the retracted state, the dust collecting layer does not cover the air inlet grille to open the air inlet grille.

[0011] It can be seen from the above scheme that when the panel assembly of the roof machine of the present invention performs the filter cleaning operation, the retraction and extension control mechanism of the panel assembly of the roof machine of the present invention controls the dust collecting layer to move to the expanded state, so that the dust collecting layer covers the air inlet grille of the grille cover to close the air inlet grille, so that the dust collecting layer can collect dirt and blockages scattered from the filter to prevent the scattered dirt and blockages from passing through the air inlet grille of the grille cover and scattering into the indoor environment, and the lifting control mechanism of the panel assembly of the roof machine of the present invention controls the grille cover to move downward relative to the panel frame to open the through-opening of the panel frame, thereby facilitating the user to clean the filter, and at the same time, during the process of the grille cover moving downward relative to the panel frame, since the dust collecting layer covers the air inlet grille of the grille cover to close the air inlet grille, it can effectively prevent dirt and blockages from being scattered into the indoor environment, thereby reducing the user's workload of cleaning the indoor environment, and thus improving the user experience.

[0012] When the panel assembly of the ceiling machine of the present invention performs heat exchange operation, the retraction and extension control mechanism of the panel assembly of the ceiling machine of the present invention controls the dust collecting layer to move to a retracted state, so that the dust collecting layer does not cover the air inlet grille of the grille cover to open the air inlet grille, and the lifting control mechanism of the panel assembly of the ceiling machine of the present invention controls the grille cover to move upward relative to the panel frame to cover the grille cover at the through-opening of the panel frame, so that the indoor air passes through the air inlet grille and the filter of the grille cover in turn and enters the ceiling indoor unit for heat exchange.

[0013] When the equipment is not used for a long time, the panel assembly of the ceiling machine of the present invention can perform insect-proof safety operations, that is, the retraction and extension control mechanism of the panel assembly of the ceiling machine of the present invention controls the dust collecting layer to move to the expanded state, so that the dust collecting layer covers the air inlet grille of the grille cover to close the air inlet grille, and the lifting control mechanism of the panel assembly of the ceiling machine of the present invention controls the grille cover to move upward relative to the panel frame to cover the grille cover at the through-opening of the panel frame. Since the dust collecting layer covers the air inlet grille of the grille cover to close the air inlet grille, it can effectively prevent insects from entering the ceiling indoor unit through the air inlet grille of the grille cover to ensure the safety of the equipment.

[0014] Therefore, the panel assembly of the patio machine of the present invention can control the lifting and lowering movement of the grille cover relative to the panel frame to facilitate the user to clean the filter of the patio indoor unit, and can effectively prevent dirt and blockages from being scattered into the indoor environment during the lowering movement of the grille cover, thereby reducing the user's workload of cleaning the indoor environment, thereby improving the user experience, and can prevent insects from entering through the air inlet grille when the equipment is not used for a long time, thereby ensuring the safety of the equipment.

[0015] A further solution is that the dust collecting layer is an accordion plate, which can be extended and retracted in the length direction of the through-opening, and the fixed end of the accordion plate is fixed on the grille cover. The retraction and extension control mechanism can control the movable end of the accordion plate to move in the length direction of the through-opening so that the accordion plate is in an expanded state or a folded state, and the movable end and the fixed end are relatively arranged in the length direction of the through-opening.

[0016] A further solution is that the moving end is provided with a first slide rail, the grille cover is provided with a first slide groove, the first slide groove extends in the length direction of the through opening, and the first slide rail can be slidably located in the first slide groove in the length direction of the through opening; or, the moving end is provided with a second slide groove, the grille cover is provided with a second slide rail, the second slide rail extends in the length direction of the through opening, and the second slide groove can be slidably mounted on the second slide rail in the length direction of the through opening.

[0017] A further solution is that the retraction and release control mechanism includes a retractable motor, a retraction and release rope and a spring. The retractable motor is arranged on the panel frame and close to the fixed end in the length direction of the through-hole. The first end of the retraction and release rope is connected to the drive shaft of the retractable motor. The spring is pressed between the movable end and the fixed end in the length direction of the through-hole to force the movable end to move away from the fixed end. The fixed end is provided with a first pulley, and the movable end is provided with a second pulley. The second end of the retraction and release rope passes through the bottom of the first pulley, bypasses the second pulley and is connected to the top of the first pulley in sequence. Alternatively, the second end of the retraction and release rope passes through the fixed end and is connected to the movable end.

[0018] A further solution is that the ceiling machine panel assembly also includes a wire holder, which is arranged on the panel frame, the vertical plate of the wire holder is provided with a first wire hole, and the horizontal plate of the wire holder is provided with a second wire hole, the second end of the retraction rope passes through the first wire hole and the second wire hole in sequence, the vertical plate extends in the normal direction of the panel frame, and the horizontal plate extends in the tangential direction of the panel frame.

[0019] A further solution is that the lifting control mechanism includes a lifting motor and a lifting rope, the lifting motor is arranged on the panel frame and is arranged near the first side of the panel frame in the length direction of the through-opening, the first end of the lifting rope is connected to the drive shaft of the lifting motor, and the second end of the lifting rope passes through the first wire passing channel on the panel frame, the second wire passing channel on the grille cover, the third wire passing channel on the panel frame, the fourth wire passing channel on the grille cover, and the fifth wire passing channel on the panel frame in sequence and is connected to the drive shaft of the lifting motor; the lifting motor is located in the middle of the panel frame in the width direction of the through-opening, the first wire passing channel and the fifth wire passing channel are symmetrically arranged about the lifting motor in the width direction of the through-opening, and the second wire passing channel and the fourth wire passing channel are symmetrically arranged about the lifting motor in the width direction of the through-opening.

[0020] A further solution is that the rooftop machine panel assembly also includes at least four rollers, each of which is rotatably supported on the grille cover, wherein a part of the rollers is located on one side of the grille cover in the width direction of the through-opening and is arranged side by side in the length direction of the through-opening to form a second wire-passing channel, and another part of the rollers is located on the other side of the grille cover in the width direction of the through-opening and is arranged side by side in the length direction of the through-opening to form a fourth wire-passing channel; and / or, the rooftop machine panel assembly also includes at least four first wire-passing brackets, each of which is provided with a first wire-passing hole, wherein a part of the first wire-passing brackets is arranged on one side of the lifting motor in the width direction On the panel frame, the first wire passing holes of a part of the first wire passing brackets form a first wire passing channel, and another part of the first wire passing brackets are arranged on the panel frame on the other side of the lifting motor in the width direction, so that the first wire passing holes of another part of the first wire passing brackets form a fifth wire passing channel; and / or, the ceiling machine panel assembly also includes at least two second wire passing brackets, and the multiple second wire passing brackets are arranged near the second side of the panel frame in the length direction of the through opening and are arranged side by side on the panel frame in the width direction of the through opening, each second wire passing bracket is provided with a second wire passing hole, and the second wire passing holes of the multiple second wire passing brackets form a third wire passing channel.

[0021] A further solution is that the roof machine panel assembly also includes four lead holders arranged on the panel frame, two of which correspond one-to-one to the rollers at both ends of the second wire passing channel in the length direction of the through-opening when the grille cover is lifted and lowered, and the other two lead holders correspond one-to-one to the rollers at both ends of the fourth wire passing channel in the length direction of the through-opening when the grille cover is lifted and lowered; the normal plate of each lead holder is provided with a first lead hole, and the tangential plate of the lead holder is provided with a second lead hole, the lifting rope passes through the first lead hole and the second lead hole in sequence, the normal plate extends in the normal direction of the panel frame, and the tangential plate extends in the tangential direction of the panel frame.

[0022] A further solution is that an obstacle sensor is provided on the grille cover, and the obstacle sensor is used to detect obstacles.

[0023] In order to achieve the second object of the present invention, the present invention provides a control method for a rooftop machine panel assembly, wherein the rooftop machine panel assembly is the above-mentioned rooftop machine panel assembly, and the control method includes filter cleaning operation, heat exchange operation operation and insect prevention and safety operation; The filter cleaning operation includes: the retractable control mechanism of the rooftop machine panel assembly controls the dust collecting layer of the rooftop machine panel assembly to move to an extended state, and the lifting control mechanism of the rooftop machine panel assembly controls the grille cover of the rooftop machine panel assembly to move downward relative to the panel frame of the rooftop machine panel assembly to open the through-opening of the panel frame; The heat exchange operation includes: the retractable control mechanism controls the dust collecting layer to move to a retracted state, and the lifting control mechanism controls the grille cover to move upward relative to the panel frame to close the grille cover at the through opening; The insect-proof safety operation includes: the retractable control mechanism controls the dust collecting layer to move to the unfolded state, and the lifting control mechanism controls the grille cover to move upward relative to the panel frame to close the grille cover at the through opening.

[0024] A further solution is that, during the filter cleaning operation, it is determined whether the obstacle sensor on the grille cover detects an obstacle. If so, the lifting control mechanism stops controlling the grille cover to move downward relative to the panel frame; if not, the lifting control mechanism controls the grille cover to move downward relative to the panel frame to a preset cleaning position.

[0025] In order to achieve the third purpose of the present invention, the present invention provides a ceiling indoor unit, including a filter and a ceiling machine panel assembly, the ceiling machine panel assembly is the above-mentioned ceiling machine panel assembly; or, the ceiling machine panel assembly executes the above-mentioned control method of the ceiling machine panel assembly; the filter is arranged on the side of the through-opening of the ceiling machine panel assembly away from the grille cover of the ceiling machine panel assembly.

[0026] In order to achieve the fourth object of the present invention, the present invention provides an air conditioner, including a patio indoor unit, and the patio indoor unit is the above-mentioned patio indoor unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a first perspective sectional view of an embodiment of a panel assembly of a rooftop machine of the present invention, in which the dust collecting layer is in a retracted state and the through-opening is in a covered state.

[0028] Figure 2 yes Figure 1 Enlarged view at point A.

[0029] Figure 3 It is a cross-sectional view from a second perspective of an embodiment of the panel assembly of a rooftop machine of the present invention, in which the dust collecting layer is in a retracted state and the through-opening is in a covered state.

[0030] Figure 4 yes Figure 3 Enlarged view at B.

[0031] Figure 5 yes Figure 3 Enlarged view at C.

[0032] Figure 6 This is a first partial structural diagram of the panel frame in an embodiment of the panel assembly of the rooftop machine of the present invention.

[0033] Figure 7 This is a second partial structural diagram of the panel frame in the embodiment of the rooftop machine panel assembly of the present invention.

[0034] Figure 8 This is a structural diagram of the grille cover and dust collecting layer in the embodiment of the rooftop machine panel assembly of the present invention in the unfolded state.

[0035] Figure 9 This is a first-perspective structural diagram of an embodiment of a panel assembly of a rooftop machine of the present invention, in which the dust collecting layer is in an expanded state and the through-hole is in an open state.

[0036] Figure 10 This is a second perspective structural diagram of the embodiment of the roof machine panel assembly of the present invention, in which the dust collecting layer is in an expanded state and the through-hole is in an open state.

[0037] Figure 11 It is a third perspective schematic diagram of an embodiment of the panel assembly of a rooftop machine of the present invention, in which the dust collecting layer is in an expanded state and the through-hole is in an open state.

[0038] Figure 12 It is a third perspective cross-sectional schematic diagram of an embodiment of the rooftop machine panel assembly of the present invention, in which the dust collecting layer is in an expanded state and the through-hole is in an open state.

[0039] Figure 13 It is a flow chart of the control method of the roof machine panel assembly of the present invention.

[0040] The present invention will be further described below with reference to the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0041] Example of a skylight panel assembly: See also Figures 1 to 8 This embodiment discloses a rooftop unit panel assembly suitable for a rooftop indoor unit, comprising a panel frame 11, a grille cover 12, and a lifting control mechanism. The panel frame 11 is provided with a through-opening 111, and the grille cover 12 can cover the through-opening 111 of the panel frame 11. The grille cover 12 is provided with an air inlet grille 121, and the lifting control mechanism can control the grille cover 12 to move up and down relative to the panel frame 11. Furthermore, the rooftop unit panel assembly of this embodiment further comprises a dust collecting layer and a retractable control mechanism, and the retractable control mechanism can control the dust collecting layer to switch between an expanded state and a retracted state. Furthermore, in the expanded state, the dust collecting layer covers the air inlet grille 121 of the grille cover 12 to close the air inlet grille 121; in the retracted state, the dust collecting layer does not cover the air inlet grille 121 of the grille cover 12 to open the air inlet grille 121.

[0042] Specifically, the filter screen of the patio indoor unit is arranged on a side of the through opening 111 of the panel frame 11 in this embodiment away from the grille cover 12 .

[0043] When the panel assembly of the roof machine of this embodiment performs the filter cleaning operation, the retraction and extension control mechanism of the panel assembly of the roof machine of this embodiment controls the dust collecting layer to move to the expanded state, so that the dust collecting layer covers the air inlet grille 121 of the grille cover 12 to close the air inlet grille 121, so that the dust collecting layer can collect the dirt and blockages scattered from the filter to prevent the scattered dirt and blockages from passing through the air inlet grille 121 of the grille cover 12 and scattering into the indoor environment, and the lifting control mechanism of the panel assembly of the roof machine of this embodiment controls the grille cover 12 to move downward relative to the panel frame 11 to open the through-hole 111 of the panel frame 11, as shown in FIG. Figures 9 to 12 As shown, it is convenient for users to clean the filter. At the same time, when the grille cover 12 moves downward relative to the panel frame 11, the dust collecting layer covers the air inlet grille 121 of the grille cover 12 to close the air inlet grille 121, which can effectively prevent dirt and blockages from being scattered into the indoor environment, thereby reducing the user's workload of cleaning the indoor environment and improving the user experience.

[0044] When the ceiling machine panel assembly of this embodiment performs heat exchange operation, the retraction and extension control mechanism of the ceiling machine panel assembly of this embodiment controls the dust collecting layer to move to a retracted state, so that the dust collecting layer does not cover the air inlet grille 121 of the grille cover 12 to open the air inlet grille 121, and the lifting control mechanism of the ceiling machine panel assembly of this embodiment controls the grille cover 12 to move upward relative to the panel frame 11, so that the grille cover 12 is covered at the through-opening 111 of the panel frame 11, so that the indoor air passes through the air inlet grille 121 of the grille cover 12 and the filter in turn and enters the ceiling indoor unit for heat exchange.

[0045] When the equipment is not used for a long time, the ceiling machine panel assembly of this embodiment can perform insect-proof safety operations, that is, the retraction and extension control mechanism of the ceiling machine panel assembly of this embodiment controls the dust collecting layer to move to the expanded state, so that the dust collecting layer covers the air inlet grille 121 of the grille cover 12 to close the air inlet grille 121, and the lifting control mechanism of the ceiling machine panel assembly of this embodiment controls the grille cover 12 to move upward relative to the panel frame 11, so that the grille cover 12 covers the through-opening 111 of the panel frame 11. Since the dust collecting layer covers the air inlet grille 121 of the grille cover 12 to close the air inlet grille 121, it can effectively prevent insects from entering the ceiling indoor unit through the air inlet grille 121 of the grille cover 12 to ensure the safety of the equipment.

[0046] Therefore, the panel assembly of the ceiling machine in this embodiment can control the lifting and lowering movement of the grille cover 12 relative to the panel frame 11 to facilitate the user to clean the filter of the ceiling indoor unit, and can effectively prevent dirt and blockages from being scattered into the indoor environment during the downward movement of the grille cover 12, thereby reducing the user's workload of cleaning the indoor environment, thereby improving the user experience, and can prevent insects from entering through the air inlet grille 121 when the equipment is not used for a long time, thereby ensuring the safety of the equipment.

[0047] Combine Figure 2 and Figure 5 In this embodiment, the dust collecting layer is a accordion plate 13 that can be extended and retracted in the longitudinal direction of the through-opening 111. A fixed end 131 of the accordion plate 13 is fixed to the grille cover 12. A retraction and extension control mechanism can control the movable end 132 of the accordion plate 13 to move in the longitudinal direction of the through-opening 111, thereby placing the accordion plate 13 in an expanded or retracted state. The movable end 132 and the fixed end 131 of the accordion plate 13 are arranged opposite each other in the longitudinal direction of the through-opening 111. Because the structure of the accordion plate 13 has excellent flexible and retractable properties, the retraction and extension control mechanism can control the movable end 132 of the accordion plate 13 to move stably in the longitudinal direction of the through-opening 111, thereby placing the accordion plate 13 in an expanded or retracted state quickly and smoothly, thereby improving the stability, reliability, and rapidity and smoothness of the dust collecting layer's switching between the expanded and retracted states.

[0048] In order to further improve the stability, reliability, and precision of the telescopic movement of the accordion plate 13 in the longitudinal direction of the through-opening 111, the movable end 132 of the accordion plate 13 in this embodiment is provided with a first slide rail 1321, and the grille cover 12 is provided with a first slide groove 122. The first slide groove 122 extends in the longitudinal direction of the through-opening 111, and the first slide rail 1321 can be slidably located in the first slide groove 122 in the longitudinal direction of the through-opening 111. Alternatively, the movable end 132 of the accordion plate 13 is provided with a second slide groove, and the grille cover 12 is provided with a second slide rail. The second slide rail extends in the longitudinal direction of the through-opening 111, and the second slide groove can be slidably mounted on the second slide rail in the longitudinal direction of the through-opening 111. Specifically, the cross-section of the first slide rail 1321 in this embodiment is dovetail-shaped, and the cross-section of the first slide groove 122 in this embodiment is dovetail-shaped, thereby improving the stability, reliability, and precision of the adaptation of the first slide rail 1321 and the first slide groove 122.

[0049] Furthermore, the retraction and release control mechanism of this embodiment includes a retracting and releasing motor 141, a retracting and releasing rope 142 and a spring 143. The retracting and releasing motor 141 is arranged on the panel frame 11 and is arranged near the fixed end 131 of the accordion plate 13 in the length direction of the through-opening 111. The first end of the retracting and releasing rope 142 is connected to the driving shaft of the retracting and releasing motor 141. The spring 143 is pressed between the movable end 132 of the accordion plate 13 and the fixed end 131 of the accordion plate 13 in the length direction of the through-opening 111 to force the movable end 132 of the accordion plate 13 to move away from the fixed end 131 of the accordion plate 13, and the fixed end 131 of the accordion plate 13 is provided with a first pulley 133, and the movable end 132 of the accordion plate 13 is provided with a second pulley 134. The second end of the retracting and releasing rope 142 passes through the bottom of the first pulley 133, bypasses the second pulley 134 and is connected to the top of the first pulley 133 in sequence.

[0050] Thus, when the driving shaft of the retractable electric motor 141 of this embodiment controls the release rope 142 to be released, the compressed spring 143 will elastically reset, and under the action of the elastic reset force of the spring 143, the movable end 132 of the accordion plate 13 can be forced to move away from the fixed end 131 of the accordion plate 13, so that the dust collecting layer can cover the air inlet grille 121 of the grille cover 12 to close the air inlet grille 121; when the driving shaft of the retractable electric motor 141 of this embodiment controls the retractable rope 142 to be reeled in, the retractable rope 142 can pull the movable end 132 of the accordion plate 13 to move close to the fixed end 131 of the accordion plate 13, so that the dust collecting layer does not cover the air inlet grille 121 of the grille cover 12 to open the air inlet grille 121, and at this time the spring 143 is in a compressed state. Because the second end of the retractable rope 142 in this embodiment sequentially passes through the bottom of the first pulley 133, around the second pulley 134, and connects to the top of the first pulley 133, the retractable rope 142 has two layers, one on each of the first pulley 133 and the second pulley 134. This reduces the half-stroke of the retractable motor 141 in controlling the release or retraction of the retractable rope 142, thereby reducing the operating energy consumption of the retractable motor 141. Specifically, the drive shaft of the retractable motor 141 is sleeved with the first wire drum 140, and the first end of the retractable rope 142 is wound and connected to the wire groove of the first wire drum 140, so that the wire groove of the first wire drum 140 is used to store the retractable rope 142.

[0051] Optionally, the second end of the retractable rope 142 passes through the fixed end 131 of the accordion board 13 and is connected to the movable end 132 of the accordion board 13, which can also control the accordion board 13 to switch between the expanded state and the retracted state.

[0052] In order to improve the working stability, reliability and accuracy of the retraction rope 142, the ceiling machine panel assembly of this embodiment also includes a wire holder 144, which is arranged on the panel frame 11. The vertical plate 1441 of the wire holder 144 is provided with a first wire hole, and the horizontal plate 1442 of the wire holder 144 is provided with a second wire hole. The second end of the retraction rope 142 passes through the first wire hole of the vertical plate 1441 and the second wire hole of the horizontal plate 1442 in sequence. The vertical plate 1441 extends in the normal direction of the panel frame 11, and the horizontal plate 1442 extends in the tangential direction of the panel frame 11, so that the retraction rope 142 can smoothly transition from the panel frame 11 to the grille cover 12 to achieve the purpose of steering.

[0053] Optionally, the dust collecting layer is a wrapping film, which is provided with a coating area and a through-hole area. Correspondingly, the retraction and extension control mechanism includes a winding motor, an active roller and a driven roller, the active roller and the driven roller are respectively rotatably supported on the grille cover 12 and are respectively located on both sides of the grille cover 12 in the length direction of the through-opening 111, the wrapping film is sleeved between the active roller and the driven roller, and the winding motor can control the rotation of the active roller, so that when the winding motor controls the active roller to rotate to control the wrapping film to move to the unfolded state, the coating area of ​​the wrapping film covers the air inlet grille 121 of the grille cover 12 to close the air inlet grille 121; when the winding motor controls the active roller to rotate to control the wrapping film to move to the folded state, the through-hole area of ​​the wrapping film corresponds to the air inlet grille 121 of the grille cover 12 to open the air inlet grille 121.

[0054] Therefore, the dust collecting layer and the retraction and extension control mechanism are not limited to the two aforementioned methods. Other methods that can achieve the purpose of the retraction and extension control mechanism controlling the dust collecting layer to switch between the expanded state and the folded state are within the scope of protection of this patent. For example, the dust collecting layer can be flexible cardboard, flexible cloth, etc., and the retraction and extension control mechanism can be a control structure such as a screw rod, a gear rack, etc.

[0055] Combine Figures 6 to 8, the lifting control mechanism of this embodiment includes a lifting motor 151 and a lifting rope 152, the lifting motor 151 is arranged on the panel frame 11 and is arranged near the first side of the panel frame 11 in the length direction of the through-opening 111, the first end of the lifting rope 152 is connected to the drive shaft of the lifting motor 151, the second end of the lifting rope 152 passes through the first wire passing channel on the panel frame 11, the second wire passing channel on the grille cover 12, the third wire passing channel on the panel frame 11, the fourth wire passing channel on the grille cover 12, and the fifth wire passing channel on the panel frame 11 in sequence and is connected to the drive shaft of the lifting motor 151, and the lifting motor 151 is located in the middle of the panel frame 11 in the width direction of the through-opening 111, the first wire passing channel and the fifth wire passing channel are symmetrically arranged about the lifting motor 151 in the width direction of the through-opening 111, and the second wire passing channel and the fourth wire passing channel are symmetrically arranged about the lifting motor 151 in the width direction of the through-opening 111. Therefore, the panel assembly of the roof machine in this embodiment controls the retraction and extension of a lifting rope 152 through a lifting motor 151, and the lifting rope 152 passes through the first wire channel on the panel frame 11, the second wire channel on the grille cover 12, the third wire channel on the panel frame 11, the fourth wire channel on the grille cover 12, and the fifth wire channel on the panel frame 11 in sequence to ensure that the lifting ropes 152 retracted and extended by a lifting motor 151 within the same time are the same, so that the force on the grille cover 12 is balanced, the grille cover 12 can be smoothly raised and lowered relative to the panel frame 11, and the grille cover 12 can adjust self-balancing under the action of its own gravity, thereby reducing the tilting problem caused by accidental touching of the grille cover 12, thereby improving the stability of the grille cover 12 rising and falling relative to the panel frame 11. Specifically, the driving shaft of the lifting motor 151 is sleeved with a second wire drum 150, and the second wire drum 150 has a double-layer wire groove 1501. The first end and the second end of the lifting rope 152 are respectively wound in one wire groove of the double-layer wire groove 1501, so that one wire groove of the double-layer wire groove 1501 is used to accommodate the first end of the lifting rope 152, and the other wire groove of the double-layer wire groove 1501 is used to accommodate the second end of the lifting rope 152.

[0056] The rooftop crane panel assembly of this embodiment further includes at least four rollers 153, each rotatably supported on the grille cover 12. Some rollers 153 are located on one side of the grille cover 12 in the width direction of the through-opening 111 and are arranged side by side in the length direction of the through-opening 111 to form a second wire passage. Another portion of rollers 153 are located on the other side of the grille cover 12 in the width direction of the through-opening 111 and are arranged side by side in the length direction of the through-opening 111 to form a fourth wire passage. Thus, the arrangement of the rollers 153 minimizes friction on the lifting cord 152, thereby improving the smoothness of the retraction and extension of the lifting cord 152.

[0057] In addition, the ceiling machine panel assembly of this embodiment also includes at least four first wire-passing brackets 154, each first wire-passing bracket 154 is provided with a first wire-passing hole, and a part of the first wire-passing brackets 154 are arranged on the panel frame 11 on one side of the lifting motor 151 in the width direction, so that the first wire-passing holes of a part of the first wire-passing brackets 154 form a first wire-passing channel, and another part of the first wire-passing brackets 154 are arranged on the panel frame 11 on the other side of the lifting motor 151 in the width direction, so that the first wire-passing holes of another part of the first wire-passing brackets 154 form a fifth wire-passing channel, thereby improving the smoothness of the retraction and extension of the lifting rope 152.

[0058] Moreover, the ceiling machine panel assembly of this embodiment also includes at least two second wire-passing brackets 155. Multiple second wire-passing brackets 155 are arranged near the second side of the panel frame 11 in the length direction of the through opening 111 and are arranged side by side on the panel frame 11 in the width direction of the through opening 111. Each second wire-passing bracket 155 is provided with a second wire-passing hole. The second wire-passing holes of the multiple second wire-passing brackets 155 form a third wire-passing channel, thereby improving the smoothness of the retraction and extension of the lifting rope 152.

[0059] In addition, the roof machine panel assembly of this embodiment also includes four lead holders 156 arranged on the panel frame 11, two of which correspond one-to-one to the rollers 153 at both ends of the second wire passing channel in the length direction of the through-opening 111 when the grille cover 12 is lifted and lowered, and the other two lead holders 156 correspond one-to-one to the rollers 153 at both ends of the fourth wire passing channel in the length direction of the through-opening 111 when the grille cover 12 is lifted and lowered, and the normal plate 1561 of each lead holder 156 is provided with a first lead hole, and the tangential plate 1562 of the lead holder 156 is provided with a second lead hole, and the lifting rope 152 passes through the first lead hole of the normal plate 1561 and the second lead hole of the tangential plate 1562 in sequence, the normal plate 1561 extends in the normal direction of the panel frame 11, and the tangential plate 1562 extends in the tangential direction of the panel frame 11 to achieve the purpose of steering, thereby improving the smoothness of the retraction and extension of the lifting rope 152.

[0060] In addition, the grille cover 12 of this embodiment is equipped with an obstacle sensor for detecting obstacles. Therefore, when the lift control mechanism of the rooftop crane panel assembly controls the grille cover 12 to descend relative to the panel frame 11, if the obstacle sensor detects an obstacle, the lift control mechanism stops controlling the grille cover 12 to descend relative to the panel frame 11. This prevents the grille cover 12 from colliding with the obstacle and causing damage to the grille cover 12. If the obstacle is a user, this prevents the grille cover 12 from colliding with the user and potentially endangering their safety, thereby improving the safety of the grille cover 12's descent.

[0061] Example of a control method for a rooftop machine panel assembly: The control method of the panel assembly of the skylight machine in this embodiment is the control method of the panel assembly of the skylight machine mentioned above, so see Figure 13 The specific steps of the control method of the rooftop machine panel assembly in this embodiment are as follows.

[0062] When step S11 is executed, the filter cleaning operation is performed, and then step S12 is executed, the retraction and extension control mechanism of the ceiling machine panel assembly controls the accordion plate 13 of the ceiling machine panel assembly to move to the expanded state, and the lifting control mechanism of the ceiling machine panel assembly controls the grille cover 12 of the ceiling machine panel assembly to move downward relative to the panel frame 11 of the ceiling machine panel assembly to open the through-opening 111 of the panel frame 11, that is, the retraction and extension control mechanism of the ceiling machine panel assembly in this embodiment controls the accordion plate 13 to move to the expanded state, so that the accordion plate 13 covers the air inlet grille 121 of the grille cover 12 to close the air inlet grille 121, so that the accordion plate 13 can collect dirt and blockages scattered from the filter net to prevent the scattered dirt and blockages from passing through the air inlet grille 121 of the grille cover 12 and scattering into the indoor environment, and the lifting control mechanism of the ceiling machine panel assembly in this embodiment controls the grille cover 12 to move downward relative to the panel frame 11 to open the through-opening 111 of the panel frame 11, as shown in FIG. Figures 9 to 12 As shown, it is convenient for users to clean the filter. At the same time, when the grille cover 12 moves downward relative to the panel frame 11, the accordion plate 13 covers the air inlet grille 121 of the grille cover 12 to close the air inlet grille 121, which can effectively prevent dirt and blockages from being scattered into the indoor environment, thereby reducing the user's workload of cleaning the indoor environment and improving the user experience.

[0063] Next, step S13 is executed to determine whether the obstacle sensor on the grille cover 12 detects an obstacle. If yes, step S14 is executed; if not, step S15 is executed.

[0064] When step S13 determines that the obstacle sensor on the grille cover 12 detects an obstacle, step S14 is executed, and the lifting control mechanism stops controlling the grille cover 12 to move downward relative to the panel frame 11 to avoid the grille cover 12 hitting the obstacle and causing the risk of damage to the grille cover 12. If the obstacle is a user, it can prevent the grille cover 12 from hitting the user and causing harm to the user's personal safety, thereby improving the safety of the grille cover 12's downward movement, and the user cleans the filter.

[0065] When step S13 determines that the obstacle sensor on the grille cover 12 does not detect an obstacle, step S15 is executed, and the lifting control mechanism controls the grille cover 12 to move downward relative to the panel frame 11 to a preset cleaning position, and the user cleans the filter.

[0066] Afterwards, step S16 is executed to perform a reset operation after cleaning is completed.

[0067] Then, step S17 is executed, where the retractable control mechanism controls the accordion plate 13 to move to the retracted state, and the lifting control mechanism controls the grille cover 12 to move upward relative to the panel frame 11 so as to cover the grille cover 12 at the through opening 111 of the panel frame 11 .

[0068] When step S18 is executed and the heat exchange operation is performed, step S19 is executed, and the retraction and extension control mechanism controls the accordion plate 13 to move to the retracted state, so that the accordion plate 13 does not cover the air inlet grille 121 of the grille cover 12 to open the air inlet grille 121, and the lifting control mechanism controls the grille cover 12 to move upward relative to the panel frame 11 to cover the grille cover 12 at the through-opening 111, so that the indoor air passes through the air inlet grille 121 of the grille cover 12 and the filter in turn and enters the patio indoor unit for heat exchange.

[0069] When step S110 is executed and the insect-proof safety operation is performed, step S111 is executed, and the retraction and extension control mechanism controls the accordion plate 13 to move to the expanded state, and the lifting control mechanism controls the grille cover 12 to move upward relative to the panel frame 11 to cover the grille cover 12 at the through-opening 111, that is, when the equipment is not used for a long time, the accordion plate 13 is controlled to cover the air inlet grille 121 of the grille cover 12 to close the air inlet grille 121, thereby effectively preventing insects from entering the patio indoor unit through the air inlet grille 121 of the grille cover 12 to ensure the safety of the equipment.

[0070] The above embodiments are only preferred examples of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made based on the structure, features and principles of the patent application scope of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. A rooftop crane panel assembly comprising a panel frame, a grille cover, and a lifting control mechanism. The panel frame has a through-opening, the grille cover can cover the through-opening, and the grille cover has an air inlet grille. The lifting control mechanism can control the grille cover to move up and down relative to the panel frame. The following features are present: The panel assembly of the roof machine further includes a dust collecting layer and a retractable control mechanism, wherein the retractable control mechanism can control the dust collecting layer to switch between an extended state and a retracted state; In the expanded state, the dust collecting layer covers the air inlet grille to close the air inlet grille; In the retracted state, the dust collecting layer does not cover the air inlet grille so that the air inlet grille is opened.

2. The panel assembly of the rooftop machine according to claim 1, characterized in that: The dust collecting layer is an accordion plate, which can be extended and retracted in the length direction of the through-opening, and the fixed end of the accordion plate is fixed on the grille cover. The retraction and extension control mechanism can control the movable end of the accordion plate to move in the length direction of the through-opening so that the accordion plate is in the expanded state or the folded state, and the movable end and the fixed end are relatively arranged in the length direction of the through-opening.

3. The panel assembly of the rooftop machine according to claim 2, characterized in that: The movable end is provided with a first slide rail, and the grille cover is provided with a first slide groove, the first slide groove extends in the longitudinal direction of the through-opening, and the first slide rail can be slidably located in the first slide groove in the longitudinal direction of the through-opening; Alternatively, the movable end is provided with a second slide groove, the grille cover is provided with a second slide rail, the second slide rail extends in the length direction of the through opening, and the second slide groove can be slidably mounted on the second slide rail in the length direction of the through opening.

4. The panel assembly of a rooftop machine according to claim 2, characterized in that: The retractable and extendable control mechanism includes a retractable and extendable motor, a retractable and extendable rope, and a spring. The retractable and extendable motor is arranged on the panel frame and is arranged close to the fixed end in the length direction of the through-hole. The first end of the retractable and extendable rope is connected to the drive shaft of the retractable and extendable motor. The spring is pressed between the movable end and the fixed end in the length direction of the through-hole to force the movable end to move away from the fixed end. The fixed end is provided with a first pulley, the movable end is provided with a second pulley, and the second end of the retractable rope passes through the bottom of the first pulley, passes around the second pulley and is connected to the top of the first pulley in sequence; Alternatively, the second end of the retractable rope passes through the fixed end and is connected to the movable end.

5. The panel assembly of the rooftop machine according to claim 4, characterized in that: The ceiling machine panel assembly also includes a wire holder, which is arranged on the panel frame. The vertical plate of the wire holder is provided with a first wire hole, and the horizontal plate of the wire holder is provided with a second wire hole. The second end of the retraction rope passes through the first wire hole and the second wire hole in sequence. The vertical plate extends in the normal direction of the panel frame, and the horizontal plate extends in the tangential direction of the panel frame.

6. The panel assembly of a rooftop machine according to claim 1, characterized in that: The lifting control mechanism includes a lifting motor and a lifting rope, wherein the lifting motor is arranged on the panel frame and is arranged near a first side of the panel frame in the length direction of the through-hole, a first end of the lifting rope is connected to a drive shaft of the lifting motor, and a second end of the lifting rope passes through a first wire passing channel on the panel frame, a second wire passing channel on the grille cover, a third wire passing channel on the panel frame, a fourth wire passing channel on the grille cover, and a fifth wire passing channel on the panel frame in sequence and is connected to the drive shaft of the lifting motor; The lifting motor is located in the middle of the panel frame in the width direction of the through-opening, the first wire-passing channel and the fifth wire-passing channel are symmetrically arranged about the lifting motor in the width direction of the through-opening, and the second wire-passing channel and the fourth wire-passing channel are symmetrically arranged about the lifting motor in the width direction of the through-opening.

7. The panel assembly of a rooftop machine according to claim 6, characterized in that: The rooftop machine panel assembly further includes at least four rollers, each of which is rotatably supported on the grille cover, wherein a portion of the rollers is located on one side of the grille cover in the width direction of the through-opening and is arranged side by side in the length direction of the through-opening to form the second wire-passing channel, and another portion of the rollers is located on the other side of the grille cover in the width direction of the through-opening and is arranged side by side in the length direction of the through-opening to form the fourth wire-passing channel; And / or, the ceiling machine panel assembly further includes at least four first wire-passing brackets, each of the first wire-passing brackets is provided with a first wire-passing hole, wherein a portion of the first wire-passing brackets are arranged on the panel frame on one side of the lifting motor in the width direction, so that the first wire-passing holes of a portion of the first wire-passing brackets form the first wire-passing channel, and another portion of the first wire-passing brackets are arranged on the panel frame on the other side of the lifting motor in the width direction, so that the first wire-passing holes of another portion of the first wire-passing brackets form the fifth wire-passing channel; And / or, the ceiling machine panel assembly also includes at least two second wire passing brackets, multiple second wire passing brackets are arranged near the second side of the panel frame in the length direction of the through opening and are arranged side by side on the panel frame in the width direction of the through opening, each second wire passing bracket is provided with a second wire passing hole, and the second wire passing holes of multiple second wire passing brackets form the third wire passing channel.

8. The panel assembly of a rooftop machine according to claim 7, characterized in that: The panel assembly of the skylight machine further includes four lead holders provided on the panel frame, wherein two of the lead holders correspond one-to-one with the rollers at both ends of the second wire-passing channel in the length direction of the through-opening during the lifting and lowering movement of the grille cover, and the other two lead holders correspond one-to-one with the rollers at both ends of the fourth wire-passing channel in the length direction of the through-opening during the lifting and lowering movement of the grille cover; The normal plate of each lead holder is provided with a first lead hole, and the tangential plate of the lead holder is provided with a second lead hole. The lifting rope passes through the first lead hole and the second lead hole in sequence. The normal plate extends in the normal direction of the panel frame, and the tangential plate extends in the tangential direction of the panel frame.

9. The panel assembly of a rooftop machine according to any one of claims 1 to 8, characterized in that: The grille cover is provided with an obstacle sensor, which is used to detect obstacles.

10. A method for controlling a panel assembly of a rooftop machine, characterized in that: The panel assembly of the roof machine is the panel assembly of any one of claims 1 to 9 above, and the control method includes a filter cleaning operation, a heat exchange operation, and an insect prevention and safety operation; The filter cleaning operation includes: the retractable control mechanism of the rooftop crane panel assembly controls the dust collecting layer of the rooftop crane panel assembly to move to an extended state, and the lifting control mechanism of the rooftop crane panel assembly controls the grille cover of the rooftop crane panel assembly to move downward relative to the panel frame of the rooftop crane panel assembly to open the through-opening of the panel frame; The heat exchange operation includes: the retractable control mechanism controls the dust collecting layer to move to a retracted state, and the lifting control mechanism controls the grille cover to move upward relative to the panel frame so as to cover the grille cover at the through opening; The insect-proof safety operation includes: the retractable control mechanism controls the dust collecting layer to move to an unfolded state, and the lifting control mechanism controls the grille cover to move upward relative to the panel frame to cover the grille cover at the through opening.

11. The control method of the panel assembly of a rooftop crane according to claim 10, characterized in that: During the filter cleaning operation, it is determined whether the obstacle sensor on the grille cover detects an obstacle. If so, the lifting control mechanism stops controlling the grille cover to move downward relative to the panel frame; if not, the lifting control mechanism controls the grille cover to move downward relative to the panel frame to a preset cleaning position.

12. The patio indoor unit includes a filter and a patio unit panel assembly, characterized by: The overhead crane panel assembly is the overhead crane panel assembly according to any one of claims 1 to 9; or, the overhead crane panel assembly executes the control method of the overhead crane panel assembly according to claim 10 or 11; The filter screen is arranged on a side of the through opening of the panel assembly of the skylight machine away from the grille cover of the panel assembly of the skylight machine.

13. An air conditioner, including a patio indoor unit, characterized in that: The patio indoor unit is the patio indoor unit described in claim 12 above.

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