Sliding door and air conditioner

Abstract

The application provides a sliding door and an air conditioner, which comprises a driver, a central gear, a speed reduction gear set; the speed reduction gear set comprises an input gear, an output gear and a plurality of speed reduction gears; the central gear is engaged with the input gear, and the plurality of speed reduction gears are arranged between the input gear and the output gear; a motor, a rotating shaft of the motor is connected with the central gear, and the motor is used for driving the central gear to rotate; a door body, a rack is fixedly arranged on the door body, and a limiting device is arranged on the rack; the output gear is engaged with the rack, and the limiting device is used for limiting the moving range of the rack. The scheme of the application does not need to accurately control the rotating angle of the sliding door by using a stepping motor, and the sliding door can be accurately opened / closed to the position by using a common DC motor. It can be seen that the driving method is simple, the assembly and wiring are convenient, the IO port resources of the chip and the space resources on the PCB are saved, and the material cost is low.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, in particular to a sliding door and an air conditioner with the sliding door. BACKGROUND

[0002] At present, many cylindrical vertical cabinet air conditioners on the market have a sliding door structure, the sliding door is opened when the air conditioner is started, and cold / hot air is blown out from inside; the sliding door is closed when the air conditioner is turned off to prevent dust and sundries from entering the air inlet. Although the sliding door is atmospheric and beautiful, it brings many difficulties to the developers in terms of wiring design, drive design and material cost.

[0003] Generally speaking, if the cabinet air conditioner is a double-door, then two step motors are needed on each side to drive the sliding door, a total of four step motors. Since the cabinet is generally 1.8-2 meters high, the wiring length of the two step motors below is generally more than two meters, and it is very inconvenient to assemble the wiring. In addition, four step motor drive ports are needed on the control panel, which not only occupies the space resources of the PCB board but also occupies the IO port resources of the chip; in terms of materials, four step motors and related structural materials are needed, and the cost is also relatively high. SUMMARY

[0004] The problem solved by the present application is that the sliding door of the existing air conditioner is mostly driven by a step motor, which causes inconvenience in wiring, occupies the space resources of the PCB board, and has high material cost.

[0005] To solve the above problems, the first aspect of the present application provides a sliding door, comprising:

[0006] a driver comprising a center gear and a speed reduction gear set; the speed reduction gear set comprises an input gear, an output gear and a plurality of speed reduction gears; the center gear is engaged with the input gear, and the plurality of speed reduction gears are arranged between the input gear and the output gear;

[0007] a motor, the rotating shaft of the motor is connected with the center gear, for driving the center gear to rotate;

[0008] a door body, a rack is fixedly arranged on the door body, and a limiting device is arranged on the rack; the output gear is engaged with the rack, and the limiting device is used for limiting the movement range of the rack.

[0009] The scheme of the present application drives the sliding door through the driver and the rack, and sets a limiting device on the rack to limit the movement range of the door body, so that the step motor is not needed to accurately control the rotation angle of the sliding door, and an ordinary DC motor can accurately open / close the sliding door to the position. It can be seen that the driving method of the present scheme is simple, the assembly wiring is convenient, and the material cost is low.

[0010] Further, the sliding door is a double door, comprising two door bodies;

[0011] The driver comprises a central gear, a direction-changing gear and two groups of speed-reducing gears; the central gear and the direction-changing gear have the same specifications;

[0012] One group of the speed-reducing gears is meshed with the central gear; the other group of the speed-reducing gears is meshed with the direction-changing gear, and the direction-changing gear is meshed with the central gear;

[0013] The two groups of speed-reducing gears are respectively used to drive the two door bodies.

[0014] Some cabinet air conditioners are double doors, and two groups of speed-reducing gears are needed to drive the two door bodies to meet the requirements of the double doors; in addition, the two door bodies of the double doors move in opposite directions, so one direction-changing gear needs to be additionally provided for one group of speed-reducing gears.

[0015] Further, the driver further comprises a housing, and the central gear and the speed-reducing gears are arranged in the housing; a window is formed in the side wall of the housing, and a part of the output gear extends out of the window and is meshed with the rack.

[0016] The gear structure of the driver is accommodated in a housing, which facilitates assembly and prevents dust and sundries from falling on the gears and affecting the rotation of the gears.

[0017] Further, the housing is a cylinder; the central gear is arranged at the center of the bottom surface of the housing; and the two groups of speed-reducing gears are respectively arranged on the two sides of the central gear.

[0018] Some cabinet air conditioners are in a cylindrical structure, and the housing of the driver is designed as a cylinder, which can be well matched with the cabinet and improve the space utilization.

[0019] Further, the limiting device is a roller; the roller is embedded in the surface of the rack, and the roller can rotate around its own central axis; and the roller and the output gear can relatively rotate.

[0020] When the output gear rotates to the position of the roller, the roller and the output gear relatively rotate, at which time the output gear idles and the rack does not move; in this way, the length of the rack and the position of the roller only need to be designed in advance, and the rotation angle of the output gear does not need to be accurately controlled by the stepping motor, and as long as the output gear is in place, the door body will stop moving.

[0021] Further, the axial length of the roller is less than the thickness of the rack.

[0022] The rack is provided with one roller at each end; the roller at one end is arranged close to the top end surface of the rack, and the roller at the other end is arranged close to the bottom end surface of the rack.

[0023] If the rollers at both ends are arranged at the same horizontal height, and the axial length of the roller is greater than or equal to the thickness of the rack, the output gear will always idle after reaching the roller, and cannot engage with the rack again. Therefore, the axial length of the roller needs to be designed to be less than the thickness of the rack, and the rollers at both ends are staggered in the horizontal height.

[0024] Further, the driver further comprises a sleeve matched with the output gear;

[0025] The connecting rod of the output gear is provided with external threads, the sleeve is provided with external threads, and the connecting rod of the output gear is connected with the sleeve through threads; the sleeve is fixedly arranged, and the output gear rises or falls along with the rotation of the output gear.

[0026] Through the design of the position of the roller at both ends of the rack matched with the lifting of the output gear, the output gear can idle and stop when reaching the predetermined position; when reversely rotating, the output gear can engage with the rack again and move in the opposite direction.

[0027] In the second aspect of the present application, an air conditioner is provided, which comprises the sliding door according to any one of the above embodiments. The air conditioner has all the advantages of the sliding door, and will not be described here again.

[0028] Further, the motor is a direct current motor for driving the through-flow fan blade. The direct current motor is a general structure of the air conditioner itself, and is installed at the top of the through-flow fan blade; the present scheme directly utilizes the direct current motor to drive the sliding door, and does not need to increase another motor, so that the wiring can be simplified and the cost can be reduced.

[0029] Further, the air conditioner comprises two drivers, which are arranged at the top and the bottom of the door body respectively. Since the height of the cabinet machine can reach 1.8-2 meters, the uneven force on the door body and the large load of the rack can be caused by arranging only one driver, and the rack is prone to wear; the two drivers arranged at the top and the bottom can balance the force on the door body, and reduce the load of the rack and the gear. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of the provided drawings.

[0031] Figure 1Fig. 1 is a schematic view of the external structure of the drive according to an embodiment of the present application;

[0032] Figure 2 Fig. 2 is a schematic view of the internal layout of the drive in the closed door state according to an embodiment of the present application;

[0033] Figure 3 Fig. 3 is a schematic view of the internal layout of the drive in the open door state according to an embodiment of the present application;

[0034] Figure 4 Fig. 4 is a schematic view of the three-dimensional structure of the drive according to an embodiment of the present application;

[0035] Figure 5 Fig. 5 is a schematic view of the structure in which the output gear and the rack are combined with each other according to an embodiment of the present application;

[0036] Figure 6 Fig. 6 is a schematic view of the structure in which the output gear and the rack are combined with each other according to an embodiment of the present application;

[0037] Figure 7 Fig. 7 is a schematic view of the structure in which the output gear and the tube sleeve are separated from each other according to an embodiment of the present application;

[0038] Figure 8 Fig. 8 is a schematic view of the structure in which the output gear and the tube sleeve are combined with each other according to an embodiment of the present application;

[0039] Figure 9 Fig. 9 is a schematic view of the structure of the air conditioner with the sliding door according to an embodiment of the present application;

[0040] Figure 10 Fig. 10 is a schematic view of the external structure of the air conditioner in the closed door state according to an embodiment of the present application;

[0041] Figure 11 Fig. 11 is a schematic view of the external structure of the air conditioner in the open door state according to an embodiment of the present application.

[0042] BRIEF DESCRIPTION OF THE DRAWINGS

[0043] 1 - drive; 101 - central gear; 102 - input gear; 103 - reduction gear; 104 - output gear; 105 - tube sleeve; 106 - housing; 107 - direction changing gear; 2 - motor; 3 - rack; 4 - door body; 5 - limiting device; 6 - fan wheel. DETAILED DESCRIPTION

[0044] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0045] The embodiment provides a sliding door which can be applied to a vertical cabinet air conditioner. Figures 1 to 3 As shown in the figure, the sliding door comprises:

[0046] a driver 1 comprising a center gear 101 and a speed reduction gear set; the speed reduction gear set comprises an input gear 102, an output gear 104 and a plurality of speed reduction gears 103; the center gear 101 is engaged with the input gear 102, and the plurality of speed reduction gears 103 are arranged between the input gear 102 and the output gear 104;

[0047] a motor 2, a rotating shaft of the motor 2 being connected with the center gear 101, for driving the center gear 101 to rotate;

[0048] a door body 4, a rack 3 being fixedly arranged on the door body 4, and a limiting device 5 being arranged on the rack 3; the output gear 104 is engaged with the rack 3, and the limiting device 5 is used for limiting the moving range of the rack 3.

[0049] The scheme of the application drives the sliding door through the driver and the rack, and limits the moving range of the door body through the limiting device arranged on the rack, so that the rotating angle of the sliding door does not need to be accurately controlled by the stepping motor, and the sliding door can be accurately opened / closed to the position by using the common DC motor. It can be seen that the driving method of the scheme is simple, the assembly and wiring are convenient, and the material cost is low.

[0050] Referring to Figure 1 In some embodiments, the driver 1 further comprises a shell 106, the center gear 101 and the speed reduction gear set are arranged in the shell 106; a window is formed in the side wall of the shell 106, and a part of the output gear 104 extends out of the window and is engaged with the rack 3.

[0051] The gear structure of the driver is accommodated in a shell, so that the assembly is facilitated, and dust and sundries are prevented from falling on the gears and affecting the rotation of the gears.

[0052] In some embodiments, the shell 106 is a cylinder; the center gear 101 is arranged at the center of the bottom surface of the shell 106; and two groups of the speed reduction gear sets are arranged on the two sides of the center gear 101.

[0053] Some air conditioner cabinet machines are in a cylindrical structure, the shell of the driver is designed as a cylinder, so that the driver can be well matched with the cabinet machine and the space utilization rate is improved.

[0054] As Figure 2 and Figure 3As shown, in some embodiments, the driver has two sizes of gears, the pinion gear has 20 serrations, and the gear wheel has 100 serrations, so the pinion gear rotates 5 times, and the gear wheel rotates one time. If the pinion gear rotates clockwise, the gear wheel in contact with it rotates counterclockwise. As can be seen from the figure, if the center gear 101 rotates clockwise 125 times, the rightmost outer output gear 104 rotates counterclockwise one time, and the leftmost outer output gear rotates clockwise one time because an additional reversing gear 107 with the same number of teeth is added to the left side to move in the opposite direction. The driver 1 has a 125 times (5x5x5) reduction ratio (in other embodiments, it can also have a higher reduction ratio), which can reduce the high speed of the DC motor 2 through the reduction gear and transmit power to the sliding door.

[0055] In some embodiments, the sliding door is a double door, including two door bodies 4.

[0056] The driver 1 includes a center gear 101, a reversing gear 107, and two sets of reduction gear sets. The center gear 101 and the reversing gear 107 are of the same size.

[0057] One set of input gears 102 of the reduction gear set is engaged with the center gear 101, and the other set of input gears 102 of the reduction gear set is engaged with the reversing gear 107, which is engaged with the center gear 101.

[0058] The two sets of reduction gear sets are used to drive the two door bodies 4 respectively.

[0059] Some cabinet air conditioners are double doors. In order to meet the needs of double doors, two sets of reduction gear sets are needed to drive two door bodies respectively. In addition, the two door bodies of the double door move in opposite directions, so one set of reduction gear sets needs to add a reversing gear 107.

[0060] As shown in Figure 4 , the inside of the driver is unfolded into a three-dimensional space figure. The center gear 101 is connected with the double-shaft DC motor 2. When the motor 2 rotates counterclockwise, it is driven by the gear transmission and then engages with the rack to drive the two sliding doors to move towards each other. When the two door bodies 4 are closed and in contact, the sliding door stops moving. Similarly, if the DC motor 2 rotates clockwise, the two sliding doors move away from each other. When the sliding door is opened to the maximum, the sliding door stops moving.

[0061] As shown in Figure 5 and Figure 6 , in some embodiments, the limiting device 5 is a roller. The roller is embedded in the surface of the rack 3, and the roller can rotate around its center axis. The roller and the output gear 104 can rotate relative to each other.

[0062] When the output gear 104 rotates to the position of the roller, the roller and the output gear 104 rotate relatively, and the output gear 104 idles, and the rack 3 does not move; thus, only the length of the rack 3 and the position of the roller need to be designed in advance, and the rotation angle of the output gear 104 does not need to be controlled accurately by the stepping motor, and the door body 4 stops moving as long as the output gear 104 is in place.

[0063] In some embodiments, the axial length of the roller is less than the thickness of the rack 3; the rack 3 is provided with one roller at each end; the roller at one end is arranged close to the top end surface of the rack 3, and the roller at the other end is arranged close to the bottom end surface of the rack 3.

[0064] If the rollers at both ends are arranged at the same horizontal height, and the axial length of the roller is greater than or equal to the thickness of the rack 3, the output gear 104 will always idle after reaching the roller and cannot engage with the rack 3 again. Therefore, the axial length of the roller needs to be designed to be less than the thickness of the rack 3, and the rollers at both ends need to be staggered in the horizontal height.

[0065] As shown in Figs. 1 and 2, in some embodiments, the driver 1 further comprises a sleeve 105 matched with the output gear 104; Figure 7 Figure 8 The connecting rod of the output gear 104 has external threads, the sleeve 105 has external threads, and the connecting rod of the output gear 104 is connected with the sleeve 105 through the threads; the sleeve 105 is fixedly arranged, and the output gear 104 rises or falls along with the rotation of itself.

[0066] The connecting rod of the output gear 104 has external threads, and the sleeve 105 matched therewith has internal threads, so that the output gear 104 can move up and down when rotating. As shown in Fig. 3, the output gear 104 moves up and down by a thread width at most.

[0067] As shown on the left side of Fig. 4, when the output gear 104 rises by a thread width, it does not rise any more but rotates at the original height; as shown on the right side of Fig. 4, when the output gear 104 falls by a thread width, it does not fall any more but rotates at the original height. When the output gear 104 rises or falls by a thread width, it is in a half-thread engagement state, and if it continues to rotate in the original direction, it rotates at the original height, and if it reverses the rotation, the gear starts to rise or fall. Figure 8 Figure 8 By designing the positions of the rollers at both ends of the rack 3 through the rising and falling of the output gear 104, the output gear 104 can idle and stop when reaching the predetermined position, and engage with the rack 3 again when reversing the rotation and move in the opposite direction. Figure 8 By designing the positions of the rollers at both ends of the rack 3 through the rising and falling of the output gear 104, the output gear 104 can idle and stop when reaching the predetermined position, and engage with the rack 3 again when reversing the rotation and move in the opposite direction.

[0068] By designing the positions of the rollers at both ends of the rack 3 through the rising and falling of the output gear 104, the output gear 104 can idle and stop when reaching the predetermined position, and engage with the rack 3 again when reversing the rotation and move in the opposite direction.​​

[0069] Specifically, the sliding door of the present application works as follows:

[0070] 1. The sliding door is in a closed state, if you want to start, the following process is carried out: the gear rotates counterclockwise and rises, and the gear engages the rack; the rack drives the sliding door to move counterclockwise (open the door); the relative position of the gear rotates to the right end of the rack, and the roller on the rack is in contact, which does a skidding motion, and the sliding door also stops moving.

[0071] 2. The sliding door is in an open state, if you want to turn off, the following process is carried out: the gear rotates clockwise and descends, and the gear engages the rack; the rack drives the sliding door to move clockwise (open the door); the gear rotates to the left end of the rack, and the roller engages, which does a skidding motion, and the sliding door stops moving.

[0072] In summary, the scheme of the present application does not need a stepping motor, and a common DC motor can be used, thus having the following beneficial effects: avoiding complicated process wiring; saving IO port resources of chips and space resources on PCB; reducing material cost.

[0073] The embodiment of the present application also provides an air conditioner comprising the sliding door according to any one of the above embodiments. The present application designs a cabinet air conditioner with a double-opening sliding door structure without a stepping motor. The air conditioner drives the sliding door through a driver with a reduction gear structure, and a limiting device is arranged on the rack to limit the movement range of the door body, so that the stepping motor is not needed to accurately control the rotation angle of the sliding door, and a common DC motor can be used to accurately open / close the sliding door to the position. It can be seen that the driving method of the present scheme is simple, the assembly wiring is convenient, and the material cost is low.

[0074] In some embodiments, the motor is a DC motor driving a cross-flow fan blade. The DC motor is a general structure of the air conditioner itself, which is installed at the top of the cross-flow fan blade; the present scheme directly utilizes the DC motor to drive the sliding door, without the need to increase another motor, which can simplify the wiring and reduce the cost.

[0075] In some embodiments, the air conditioner comprises two drivers 1, and the two drivers are arranged at the top and bottom of the door body respectively. Since the height of the cabinet machine can reach 1.8-2 meters, arranging only one driver will cause the door body to be unbalanced in force, and the load of the rack is large, which is easy to cause wear; arranging two drivers at the upper and lower ends can balance the force of the door body, and reduce the load of the rack and the gear.

[0076] As shown in Figure 9 , two drivers 1 are respectively installed on the upper and lower sides of the DC motor 2 and the fan wheel 6. The appearance of the cabinet air conditioner sliding door when it is opened and closed is shown in Figure 10 and Figure 11 .

[0077] Although the present application has been disclosed in above, the present application is not limited to this. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application, and the scope of protection of the present application should be limited by the scope defined in the claims.

[0078] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts between the various embodiments can be referred to each other. For the air conditioner disclosed in the embodiments, since it corresponds to the sliding door disclosed in the embodiments, it is described simply, and the relevant part can be referred to the description of the sliding door.

[0079] Finally, it should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one from another entity or action, without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without limitation, an element preceded by "comprises... a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0080] The above description of disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sliding door, characterized in that, include: The driver (1) includes a center gear (101) and a reduction gear set; The reduction gear set includes an input gear (102), an output gear (104), and a plurality of reduction gears (103); the center gear (101) meshes with the input gear (102), and the plurality of reduction gears (103) are disposed between the input gear (102) and the output gear (104); Motor (2), the rotating shaft of the motor (2) is connected to the central gear (101) for driving the central gear (101) to rotate; A door body (4) is fixedly provided with a rack (3), and a limiting device (5) is provided on the rack (3); the output gear (104) meshes with the rack (3), and the limiting device (5) is used to limit the movement range of the rack (3); The limiting device (5) is a roller; the roller is embedded in the surface of the rack (3), and the roller can rotate around its own central axis; the roller and the output gear (104) can rotate relative to each other; The axial length of the roller is less than the thickness of the rack (3); Each end of the rack (3) is provided with a roller; one roller is located near the top surface of the rack (3), and the other roller is located near the bottom surface of the rack (3). The driver (1) also includes a sleeve (105) that matches the output gear (104). The connecting rod of the output gear (104) has an external thread, and the sleeve (105) has an internal thread. The connecting rod of the output gear (104) and the sleeve (105) are connected by threads. The sleeve (105) is fixedly installed, and the output gear (104) rises or falls as it rotates. The output gear (104) can move up or down a distance of one thread width at most.

2. The sliding door according to claim 1, characterized in that, The sliding door is a double door, consisting of two door bodies (4). The driver (1) includes a center gear (101), a reversing gear (107), and two sets of reduction gears; the center gear (101) and the reversing gear (107) have the same specifications; One set of the reduction gear set has an input gear (102) meshing with the center gear (101); another set of the reduction gear set has an input gear (102) meshing with the reversing gear (107), and the reversing gear (107) meshing with the center gear (101); The two sets of reduction gears are used to drive the two doors (4) respectively.

3. The sliding door according to claim 2, characterized in that, The driver (1) also includes a housing (106), in which the central gear (101) and the reduction gear set are both disposed; a window is opened on the side wall of the housing (106), and a part of the output gear (104) extends out from the window and the extended part meshes with the rack (3).

4. The sliding door according to claim 3, characterized in that, The housing (106) is a cylinder; the central gear (101) is located at the center of the bottom surface of the housing (106); the two sets of reduction gears are respectively located on both sides of the central gear (101).

5. An air conditioner, characterized in that, The air conditioner includes a sliding door as described in any one of claims 1-4.

6. The air conditioner according to claim 5, characterized in that, The motor (2) is a DC motor that drives the cross-flow fan blades.

7. The air conditioner according to claim 6, characterized in that, The air conditioner includes two drives (1), which are respectively located at the top and bottom of the door (4).

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