Rolling curtain assembly and air conditioner having the same

Abstract

The present invention provides a rolling curtain assembly and an air conditioner having the same. The rolling curtain assembly includes a winding drum, and the winding drum includes a winding drum body. A recess is formed on the outer surface of the winding drum body. The recess extends along the axial direction of the winding drum, and an installation opening is formed at the bottom of the recess; a rolling curtain, one end of the rolling curtain extends to the installation opening for fixation, and the other end of the rolling curtain can be wound around the winding drum along the circumferential direction of the winding drum; wherein, the recess has a first surface and a second surface which are oppositely arranged, both the first surface and the second surface are arc surfaces, and along the radial direction of the winding drum outward, the distance between the first surface and the second surface is set to gradually increase. Such a setting can reduce the problem that when one end of the rolling curtain close to the recess starts to wind on the winding drum in the forward or reverse direction, it can smoothly adhere to the winding drum, and avoid the problem that the rolling curtain is damaged due to folding at the connection with the winding drum.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning equipment, and more particularly, to a rolling curtain assembly and an air conditioner having the same. Background Art

[0002] For an air conditioner with a rolling curtain mechanism at the air inlet, its main driving method is the cooperation of a motor and a gear mechanism. By controlling the torque and the current direction, the opening and closing of the rolling curtain are adjusted. During the reciprocating movement of the rolling curtain, when it is pushed out, the roller may be blocked during operation in the track, resulting in an abnormal problem that the local length of the rolling curtain increases and it disengages from the track and cannot continue to move forward. Further, it may cause problems such as the rolling curtain continuing to rotate after reaching the end on the reel and the rolling curtain being reversely folded and damaged. Summary of the Invention

[0003] The main object of the present invention is to provide a rolling curtain assembly and an air conditioner having the same, so as to solve the problem that the rolling curtain in the prior art is easily damaged.

[0004] To achieve the above object, according to one aspect of the present invention, there is provided a rolling curtain assembly, including: a reel, the reel includes a reel body, a recess is formed on the outer surface of the reel body, the recess extends along the axial direction of the reel, and an installation opening is formed at the bottom of the recess; a rolling curtain, one end of the rolling curtain extends to the installation opening for fixation, and the other end of the rolling curtain can be wound around the reel along the circumferential direction of the reel; wherein, the recess has a first surface and a second surface which are oppositely arranged, both the first surface and the second surface are arc surfaces, and along the radial direction of the reel, the distance between the first surface and the second surface is set to gradually increase outward.

[0005] Further, the profile line of the first surface along the radial direction of the reel and the profile line of the second surface along the radial direction of the reel are symmetrically arranged with respect to the geometric center line of the installation opening along the radial direction of the reel.

[0006] Further, the rolling curtain assembly further includes: a rolling curtain box, the rolling curtain box has a receiving cavity, the reel is movably arranged in the receiving cavity; a driving part, the driving part is connected to the rolling curtain box, and the driving part is used to drive the rolling curtain to rotate forward and backward; a limiting part, the limiting part is arranged in the receiving cavity, and the limiting part is arranged at a distance from the rolling curtain wound on the reel. When the rolling curtain is loosened from the reel along a first direction and contacts the limiting part, and the force applied by the loosened rolling curtain to the limiting part reaches a preset value, the driving part stops driving the reel to rotate, or the driving part drives the reel to rotate in a second direction opposite to the first direction.

[0007] Further, the limiting part includes a limiting rib, the limiting rib is arranged in the receiving cavity, and the side of the limiting rib facing the reel is in an arc structure.

[0008] Further, there are a plurality of limiting ribs, and the plurality of limiting ribs are arranged at intervals along the axial direction of the reel.

[0009] Further, the top of the rolling curtain box has an opening, and the rolling curtain enters or exits the accommodation cavity through the opening. A roller is provided on the rolling curtain box, the roller is located above the rolling curtain, and the outer peripheral edge of the roller is pressed against the rolling curtain.

[0010] Further, there are at least two rollers, and the rollers are arranged in pairs at the opening.

[0011] Further, the rolling curtain assembly further includes: a support shaft, which is rotatably connected to the rolling curtain box and is used to support the rolling curtain.

[0012] Further, there are two rolling curtain boxes, and at least one rolling curtain box is provided with a driving part for driving the reel to rotate. A reel is arranged in each rolling curtain box. One end of the rolling curtain is connected to the reel in one of the rolling curtain boxes, and the other end of the rolling curtain is connected to the reel in the other rolling curtain box. The driving part can drive the reel to make the rolling curtain cover between the two rolling curtain boxes, or the driving part can drive the reel to make the rolling curtain be stored in one of the rolling curtain boxes.

[0013] Further, fixing holes are provided on the reel body, the fixing holes are located between the first surface and the second surface and the geometric center of the reel body, a part of the rolling curtain extends into the fixing holes, and locking pieces for fixing the rolling curtain are arranged in the fixing holes.

[0014] Further, the profile line of the arc-shaped structure is arranged concentrically with the reel.

[0015] According to another aspect of the present invention, an air conditioner is provided, including a rolling curtain assembly, and the rolling curtain assembly is the above-mentioned rolling curtain assembly.

[0016] Applying the technical solution of the present invention, by arranging recesses in the circumferential direction of the reel, fixing one end of the rolling curtain at the bottom of the recess, and arranging arc surfaces on the relatively arranged first surface and second surface of the recess, such an arrangement can reduce the problem that when one end of the rolling curtain close to the recess starts to wind around the reel in the forward or reverse direction, it can smoothly adhere to the reel, and avoid the problem that the rolling curtain is damaged due to folding at the connection with the reel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The specification drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0018] Figure 1 The structural schematic diagram of the first embodiment of the rolling curtain assembly according to the present invention is shown;

[0019] Figure 2 The structural schematic diagram of the second embodiment of the rolling curtain assembly according to the present invention is shown;

[0020] Figure 3 Shows a schematic structural view of a third embodiment of a rolling curtain assembly according to the present invention;

[0021] Figure 4 Shows a schematic structural view of a fourth embodiment of a rolling curtain assembly according to the present invention;

[0022] Figure 5 Shows a schematic structural view of a fifth embodiment of a rolling curtain assembly according to the present invention;

[0023] Figure 6 Shows a schematic structural view of a sixth embodiment of a rolling curtain assembly according to the present invention;

[0024] Figure 7 Shows a schematic structural view of a seventh embodiment of a rolling curtain assembly according to the present invention;

[0025] Figure 8 Shows a schematic structural view of an eighth embodiment of a rolling curtain assembly according to the present invention;

[0026] Figure 9 Shows a schematic structural view of a ninth embodiment of a rolling curtain assembly according to the present invention.

[0027] Among them, the above-mentioned drawings include the following reference numerals:

[0028] 10, winding drum; 11, winding drum body; 111, fixing hole;

[0029] 12, recess; 121, first surface; 122, second surface;

[0030] 20, rolling curtain;

[0031] 30, rolling curtain box; 31, accommodating cavity;

[0032] 40, driving part;

[0033] 50, limiting part;

[0034] 60, roller;

[0035] 70, support shaft;

[0036] 80, locking part. Detailed implementation manners

[0037] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0038] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0039] It should be noted that the terms "first", "second", etc. in the description and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0040] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many different forms and should not be construed as being limited only to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of the present application is thorough and complete, and the concept of these exemplary embodiments is fully conveyed to those of ordinary skill in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and thus their description will be omitted.

[0041] Combined with Figures 1 to 9 As shown, according to a specific embodiment of the present application, a roller shutter assembly is provided.

[0042] As Figure 1 shown, the roller shutter assembly includes a drum 10 and a roller shutter 20. The drum 10 includes a drum body 11, and a recess 12 is formed on the outer surface of the drum body 11. The recess 12 extends along the axial direction of the drum 10, and an installation opening 13 is formed at the bottom of the recess 12. One end of the roller shutter 20 extends to the installation opening 13 for fixation, and the other end of the roller shutter 20 can be wound around the drum 10 along the circumferential direction of the drum 10. Wherein, the recess 12 has a first surface 121 and a second surface 122 which are oppositely arranged. Both the first surface 121 and the second surface 122 are arc surfaces, and along the radial direction of the drum 10 outward, the distance between the first surface 121 and the second surface 122 is set to gradually increase.

[0043] In this embodiment, by providing recesses in the circumferential direction of the reel, fixing one end of the rolling curtain at the bottom of the recess, and setting the relatively arranged first surface and second surface of the recess to be arc-shaped, such a setting can reduce the situation that when one end of the rolling curtain close to the recess starts to wind around the reel in the forward or reverse direction, it can smoothly adhere to the reel, avoiding the problem that the rolling curtain is damaged due to folding at the connection with the reel.

[0044] Furthermore, the profile line of the first surface 121 in the radial direction of the reel 10 and the profile line of the second surface 122 in the radial direction of the reel 10 are symmetrically arranged with respect to the geometric center line of the mounting opening 13 in the radial direction of the reel 10. Such a setting enables the reel to smoothly wind the rolling curtain whether it rotates forward or backward. Among them, as Figure 2 shown, at this time, the rolling curtain rotates clockwise with the forward rotation of the reel, as Figure 4 shown, at this time, the rolling curtain rotates counterclockwise with the reverse rotation of the reel. Among them, whether it is forward or reverse, due to the structure that the two guiding surfaces of the recess are set to be arc-shaped, the included angles β1 and β2 formed between the rolling curtain and the guiding surfaces are both less than 90°, which can avoid folding at this place and improve the reliability of the rolling curtain assembly.

[0045] Specifically, as Figure 5 shown, the rolling curtain assembly further includes a rolling curtain box 30, a driving part 40 and a limiting part 50. The rolling curtain box 30 has a receiving cavity 31. The reel 10 is movably arranged in the receiving cavity 31. The driving part 40 is connected to the rolling curtain box 30, and the driving part 40 is used to drive the rolling curtain 20 to rotate forward and backward. The limiting part 50 is arranged in the receiving cavity 31. The limiting part 50 is arranged at a distance from the rolling curtain 20 wound around the reel 10. When the rolling curtain 20 is loosened from the reel 10 along the first direction and contacts the limiting part 50, and the force applied by the loosened rolling curtain to the limiting part 50 reaches a preset value, the driving part 40 stops driving the reel 10 to rotate, or the driving part 40 drives the reel 10 to rotate in a second direction opposite to the first direction. Among them, a pressure sensor can be arranged inside the rolling curtain box to realize the detection of force, or the force between the reel and the limiting part can be detected by detecting the driving force of the motor, so as to avoid the situation that when the rolling curtain derails or gets stuck at a certain point during the movement, the motor still continuously drives the reel to rotate, causing the rolling curtain to be loosened and folded.

[0046] As Figures 5 to 7 shown, the limiting part 50 includes a limiting rib, the limiting rib is arranged in the receiving cavity 31, and the side of the limiting rib facing the reel 10 is in an arc-shaped structure. Such a setting can improve the reliability of the limiting rib.

[0047] Preferably, there are multiple limiting ribs, and the multiple limiting ribs are arranged at intervals along the axial direction of the reel 10.

[0048] Further, the top of the rolling curtain box 30 has an opening, and the rolling curtain 20 enters or exits the accommodating cavity 31 through the opening. A roller 60 is arranged on the rolling curtain box 30. The roller 60 is located above the rolling curtain 20, and the outer peripheral edge of the roller 60 is pressed against the rolling curtain 20. This setting can reduce the shaking of the rolling curtain during movement.

[0049] Preferably, there are at least two rollers 60, and the rollers 60 are arranged in pairs at the opening. As Figure 8 shown, there are two rollers 60, and the two rollers 60 are respectively located at the opposite edges of the rolling curtain.

[0050] As Figure 8 shown, the rolling curtain assembly further includes a support shaft 70. The support shaft 70 is rotatably connected to the rolling curtain box 30, and the support shaft 70 is used to support the rolling curtain 20. This setting enables a function of restricting the shaking of the rolling curtain to be formed between the roller 60 and the support shaft 70, and at the same time, setting the support shaft 70 improves the smooth movement of the rolling curtain.

[0051] Among them, there are two rolling curtain boxes 30, and at least one rolling curtain box 30 is provided with a driving part 40 for driving the winding drum 10 to rotate. A winding drum 10 is arranged in each rolling curtain box 30. One end of the rolling curtain 20 is connected to the winding drum 10 in one of the rolling curtain boxes 30, and the other end of the rolling curtain 20 is connected to the winding drum 10 in the other rolling curtain box 30. The driving part 40 can drive the winding drum 10 to make the rolling curtain 20 cover between the two rolling curtain boxes 30, or the driving part 40 can drive the winding drum 10 to make the rolling curtain 20 be received in one of the rolling curtain boxes 30. This setting can improve the reliability and stability of the rolling curtain assembly.

[0052] In order to improve the installation stability of the rolling curtain, fixing holes 111 are arranged on the winding drum body 11. The fixing holes 111 are located between the first surface 121 and the second surface 122 and the geometric center of the winding drum body 11. A part of the rolling curtain 20 extends into the fixing holes 111, and locking parts 80 for fixing the rolling curtain 20 are arranged in the fixing holes 111. Among them, the locking parts 80 can be screws, and the driving part can be a motor.

[0053] The rolling curtain assembly in the above embodiments can also be used in the technical field of air conditioning equipment. That is, according to another aspect of the present invention, an air conditioner is provided, including a rolling curtain assembly, and the rolling curtain assembly is the above rolling curtain assembly. Among them, the rolling curtain assembly can be arranged at the air outlet position of the indoor unit. By controlling the rolling curtain, the rolling curtain can have a shielding position for shielding the air outlet and an avoidance position for avoiding the air outlet.

[0054] Specifically, in the conventional solution, the roll and the rolling curtain are fitted on one side by screws or bonding, and are wound around the roll starting from the connection position. When closing the air outlet, the rolling curtain travels to the opposite side of the air outlet, and the head of the rolling curtain gently touches the micro switch, transmitting a signal to the main board. The main board controls the motor to stop rotating or switches to reverse rotation. Therefore, the rotation direction of the motor is determined by the actual position reached by the rolling curtain. When the rolling curtain encounters resistance during movement and the roller assembly gets stuck in the guide rail, at this time, the motor does not receive the signal to stop rotating and will keep rotating in the original direction. When the length of the rolling curtain rotates to the end, it will fold and wind reversely, and the rolling curtain also winds from the upper side of the roll to the lower side of the roll and enters the rolling curtain box. Here, the folding is 360° folding, and the rolling curtain is a plastic PET film, which is easy to break.

[0055] In this application, the roll is designed with a structure that can smoothly transition and wind in both counterclockwise and clockwise directions. A concave part is provided in the center of the roll to form a groove structure. The rolling curtain is inserted into the middle position of the groove and fixed with screws. The forward and reverse winding paths of the rolling curtain are symmetrically designed, and the paths passed through are all designed into large rounded corner structures to make it transition smoothly. Whether the rolling curtain operates normally or not, the bending angle at each position is less than 90°, and the plastic film will not be broken due to large-angle bending.

[0056] The rolling curtain box is designed to prevent the rolling curtain from reversing with a limiting structure. A limiting rib concentric with the roll, that is, a profile line of an arc structure, is added in the rolling curtain box and is concentrically arranged with the roll 10. The single-sided gap with the outermost rolling curtain is 2 - 4 mm. When the front-end rolling curtain encounters resistance during movement, the rolling curtain on the roll will gradually become loose (such as Figure 7 the state), but restricted by the limiting rib here, the rolling curtain cannot continue to be loose and output. The outermost rolling curtain is squeezed and rubbed against the inner side of the limiting rib, forcing the rotation of the roll to stop and the motor to stall. The main board is pre-set with a control logic to make the motor reverse automatically after stalling for a few seconds. The roll retracts the rolling curtain along the original path and enters the next round of reciprocating motion.

[0057] When the rolling curtain enters the guide rail from the rolling curtain box, the direction of the force acting on its rotation is tangent to the diameter direction of the roll. After this resultant force is decomposed, there is an upward component force, which acts together with the vertically downward gravity, causing the rolling curtain to be mainly pulled downward by gravity at a certain moment and mainly pulled upward by the vertical component force of the tangential force pushed by the motor at a certain moment, resulting in a tendency for the rolling curtain to jitter up and down. The severity of the jitter is related to the angle and angular velocity at which the rolling curtain enters the guide rail and the self-weight of the rolling curtain. Since the plastic rolling curtain slapping against the guide rail is likely to produce a loud noise, affecting the user experience and also causing a certain degree of wear to the rolling curtain, two rollers are provided up and down to correct the direction of the rolling curtain entering the guide rail to be horizontal, so that no vertical component force is generated and the hidden danger of up and down jitter is eliminated. The rollers rotate in specific grooves of the rolling curtain box cover and the rolling curtain box. The rollers are fixed to the rolling curtain box cover and the rolling curtain box through buckles, and the actual number of rollers is determined according to the actual movement of the rolling curtain.

[0058] For ease of description, spatial relative terms, such as "above", "over", "on the upper surface", "upper", etc., may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as shown in the figures. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, a device described as "above" or "over" other devices or structures will then be positioned "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both orientations of "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations of the spatial relative descriptions used herein will be made.

[0059] In addition to the above, it should be noted that the "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in connection with that embodiment being included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in connection with any one embodiment, it is intended that the implementation of such feature, structure or characteristic in combination with other embodiments also fall within the scope of the present invention.

[0060] In the above embodiments, the descriptions of the respective embodiments have their own emphases. For parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0061] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An air conditioner, characterized in that, Comprising: A rolling curtain assembly, the rolling curtain assembly comprising: A reel (10), the reel (10) comprising a reel body (11), a recess (12) being formed on the outer surface of the reel body (11), the recess (12) extending along the axial direction of the reel (10), and an installation opening (13) being formed at the bottom of the recess (12); A rolling curtain (20), one end of the rolling curtain (20) extending to the installation opening (13) for fixation, and the other end of the rolling curtain (20) being wound around the reel (10) along the circumferential direction of the reel (10); Wherein, the recess (12) has a first surface (121) and a second surface (122) which are oppositely arranged, both the first surface (121) and the second surface (122) being arc surfaces, and extending outward along the radial direction of the reel (10), the distance between the first surface (121) and the second surface (122) being set to gradually increase, and the profile line of the first surface (121) along the radial direction of the reel (10) and the profile line of the second surface (122) along the radial direction of the reel (10) being symmetrically arranged with respect to the geometric center line of the installation opening (13) along the radial direction of the reel (10).

2. The air conditioner according to claim 1, characterized in that, The rolling curtain assembly further comprises: A rolling curtain box (30), the rolling curtain box (30) having a receiving cavity (31), and the reel (10) being movably arranged in the receiving cavity (31); A driving part (40), the driving part (40) being connected to the rolling curtain box (30), and the driving part (40) being used for driving the rolling curtain (20) to rotate forward and backward; A limiting part (50), the limiting part (50) being arranged in the receiving cavity (31), the limiting part (50) being arranged at a distance from the rolling curtain (20) wound around the reel (10), when the rolling curtain (20) loosens from the reel (10) along a first direction and contacts the limiting part (50), and the force exerted by the loosened rolling curtain on the limiting part (50) reaches a preset value, the driving part (40) stops driving the reel (10) to rotate, or the driving part (40) drives the reel (10) to rotate in a second direction opposite to the first direction.

3. The air conditioner according to claim 2, characterized in that, The limiting part (50) comprises a limiting rib, the limiting rib being arranged in the receiving cavity (31), and the side of the limiting rib facing the reel (10) being an arc structure.

4. The air conditioner according to claim 3, characterized in that, There are a plurality of the limiting ribs, and the plurality of limiting ribs are arranged at intervals along the axial direction of the reel (10).

5. The air conditioner according to claim 2, characterized in that, The top of the rolling curtain box (30) has an opening, the rolling curtain (20) enters or exits the receiving cavity (31) through the opening, and a roller (60) is arranged on the rolling curtain box (30), the roller (60) being located above the rolling curtain (20), and the outer peripheral edge of the roller (60) being pressed against the rolling curtain (20).

6. The air conditioner according to claim 5, characterized in that, There are at least two of the rollers (60), and the rollers (60) are arranged in pairs at the opening.

7. The air conditioner according to claim 2, characterized in that, The rolling curtain assembly further comprises: A support shaft (70), the support shaft (70) is rotatably connected to the roller shutter box (30), and the support shaft (70) is used to support the roller shutter (20).

8. The air conditioner according to claim 2, characterized in that, There are two roller shutter boxes (30), at least one of the roller shutter boxes (30) is provided with the driving part (40) for driving the reel (10) to rotate. The reel (10) is arranged in each of the roller shutter boxes (30). One end of the roller shutter (20) is connected to the reel (10) in one of the roller shutter boxes (30), and the other end of the roller shutter (20) is connected to the reel (10) in the other roller shutter box (30). The driving part (40) can drive the reel (10) to make the roller shutter (20) cover between the two roller shutter boxes (30), or the driving part (40) can drive the reel (10) to make the roller shutter (20) be stored in one of the roller shutter boxes (30).

9. The air conditioner according to claim 1, characterized in that, A fixing hole (111) is arranged on the reel body (11), the fixing hole (111) is located between the first surface (121) and the second surface (122) and the geometric center of the reel body (11). A part of the roller shutter (20) extends into the fixing hole (111), and a locking part (80) for fixing the roller shutter (20) is arranged in the fixing hole (111).

10. The air conditioner according to claim 3, characterized in that, The profile line of the arc-shaped structure is arranged concentrically with the reel (10).

Images