CN210220358U - Multi-air door device - Google Patents
Multi-air door device Download PDFInfo
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- CN210220358U CN210220358U CN201822226836.XU CN201822226836U CN210220358U CN 210220358 U CN210220358 U CN 210220358U CN 201822226836 U CN201822226836 U CN 201822226836U CN 210220358 U CN210220358 U CN 210220358U
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Abstract
The utility model discloses a many air door device, including at least three air door and a motor, the drive power of at least three air door all comes from a motor. The multi-damper device includes only one motor. The air door structure is characterized by further comprising a transmission mechanism, and the motor drives each air door to move through the transmission mechanism. The transmission mechanism comprises a speed reduction gear train and a door driving gear train, the motor is connected with the speed reduction box gear train, and the speed reduction box gear train is used for transmitting the rotation action of the motor. The utility model arranges the air door channels adjacently in a centralized way to meet the requirements of compact structure and miniaturization; and the air door channel can realize three or more than three channels so as to meet the control requirement of multiple temperature chambers of the modern refrigerator.
Description
Technical Field
The utility model belongs to the technical field of refrigerator air conditioning wind channel controlling means, particularly relate to a many throttle device.
Background
Traditional single channel electric air door mainly comprises parts such as portal, door plant, apron, motor, reduction gear train, and under the motor drives, through the motion of reduction gear train, the final door-hinge gear that is connected by direct and door plant drives the door plant and rotates around its axis, carries out the door plant and opens and closed action, provides for the inside air conditioning passageway of refrigerator promptly and opens and close two kinds of states, realizes the effective control of temperature in the refrigerator.
Along with the social development and the continuous improvement of the living standard of residents, a plurality of different temperature areas are required to be arranged in the refrigerator, the traditional single-channel and double-channel electric air door obviously cannot meet the requirements, the market demands on the multi-channel electric air door are very urgent, and the multi-channel electric air door can regulate and control the plurality of different temperature areas in the refrigerator; meanwhile, in the design of the multi-channel electric air door, in order to facilitate the design of an air channel inside a refrigerator and save the space of the refrigerator, the channels of the electric air door are expected to be arranged adjacently as much as possible, so that the occupied space of the air channel air door is reduced; there is single air door of single actuating mechanism control or two air doors among the prior art, to the control of more than three air doors, generally adopt the quantity that increases actuating mechanism to realize the control of more than three air doors, increased manufacturing cost like this, also increased the space that is used for holding actuating mechanism, be unfavorable for practicing thrift refrigerator storage space.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the utility model provides a multi-air door device, aiming at the defects of the prior art, the multi-air door device has at least three air doors connected with the same motor, thereby intensively and adjacently arranging air door channels to realize the requirements of compact structure and miniaturization; and the air door channel can realize three or more than three channels so as to meet the control requirement of multiple temperature chambers of the modern refrigerator.
In order to realize the purpose of the utility model, the utility model provides a following technical solution:
the utility model provides a many dampers device, includes at least three dampers and a motor, the drive power of at least three dampers all comes from a motor.
Further, only one motor is included in the multi-damper device.
Further, the air door device further comprises a transmission mechanism, and the motor drives each air door to move through the transmission mechanism.
Further, the transmission mechanism comprises a speed reducing gear train and a door driving gear train, the motor is connected with the speed reducing gear train, and the speed reducing gear train is used for transmitting the rotating action of the motor.
Further, many air door devices include first air door, second air door and third air door, and first air door setting all sets up the opposite side of drive mechanism and motor in one side of drive mechanism and motor, second air door and third air door.
Further, the reduction gear train further comprises a reduction final tooth which is arranged at the tail end of the reduction gear train, is connected with the door driving gear train and is used for transmitting the rotation of the reduction gear train to the door driving gear train; the transmission of rotation between the reduction gear train and the door driving gear train is performed only through the reduction final gear.
Further, the reduction final gear includes an upper gear part, a middle gear part and a lower gear part, wherein the diameter of the middle gear part is larger than the diameter of the upper gear part and the diameter of the lower gear part, respectively; the middle gear part is meshed with other gears except the speed reducing final gear of the speed reducing gear train and is used for receiving the rotation action of the speed reducing gear train.
Furthermore, in a rotation period of positive rotation of the motor, the first air door and the second air door complete opening and closing actions, and the third air door completes one of opening and closing actions; in a rotation period of the motor in reverse rotation, the first air door and the second air door complete opening and closing actions, and the third air door completes the other one of opening and closing actions.
Furthermore, the door driving gear train comprises a forward and reverse gear train, two air door transmission gear trains and a third air door transmission gear train, wherein the forward and reverse gear train is arranged between the speed reduction final tooth and the two air door transmission gear trains and is used for transmitting the rotation of the speed reduction final tooth to the two air door transmission gear trains; and the speed reduction final tooth is connected with the third air door transmission gear train and transmits the rotation of the speed reduction final tooth to the third air door transmission gear train.
Furthermore, the positive and negative rotating gear train and the third air door transmission gear train are arranged in a double-layer mode in a superposed mode, the upper gear part of the speed reduction final gear is connected with the third air door rotating gear train, and the lower gear part of the speed reduction final gear is connected with the positive and negative rotating gear train.
Further, in a rotation period of forward rotation of the motor, the forward and reverse rotation gear train transmits one forward rotation and one reverse rotation to the two air door transmission gear trains; in a rotation period of the motor rotating reversely, the forward and reverse rotation gear trains transmit a forward rotation and a reverse rotation to the two air door transmission gear trains.
Further, the forward and reverse rotation gear train comprises a driving double-layer gear 1-1, a driven double-layer gear 1-2 and a forward and reverse rotation gear 1-3, wherein the top full gear of the driving double-layer gear 1-1 is meshed with the lower gear part of the final reduction gear; the top full teeth of the driving double-layer gear 1-1 are meshed with the top full teeth of the driven double-layer gear 1-2; the incomplete teeth at the bottom of the driving double-layer gear 1-1 and the incomplete teeth at the bottom of the driven double-layer gear 1-2 are respectively and independently meshed with the forward and reverse rotating gear 1-3, and the incomplete teeth at the bottom of the driving double-layer gear 1-1 and the incomplete teeth at the bottom of the driven double-layer gear 1-2 cannot be simultaneously meshed with the forward and reverse rotating gear 1-3.
Further, the third damper transmission gear train includes a reduction gear 3-1, a door triple driving gear 3-2, and a third door shaft gear 3-3, wherein,
the reduction gear 3-1 comprises bottom layer teeth and top layer teeth, and the bottom layer teeth are meshed with the final reduction teeth;
the door three-driving gear 3-2 comprises a second bottom gear arranged at the bottom of the door three-driving gear and a second top incomplete tooth arranged on the second bottom gear, and the second bottom gear is meshed with the top teeth; the second top incomplete teeth comprise second wheel tooth parts-1 and second arc peripheral parts-2 of missing wheel teeth;
the third door spindle gear 3-3 comprises a third top complete gear tooth part arranged at the top of the third door spindle gear and a third bottom incomplete gear tooth part arranged at the lower part of the third top complete gear tooth part; the third bottom partial gear tooth portion comprises a third bottom gear tooth portion and a third locking recess recessed in the third bottom gear tooth portion; during the rotation of the door three-drive gear 3-2, the second gear tooth part-1 can be meshed with the third top complete gear tooth part, and the second circular arc outer peripheral part-2 can be embedded in the third locking concave part.
Further, a door third annular groove 13 is formed in the bottom end of the door third driving gear 3-2, a blocking part is arranged in the door third annular groove 13, the blocking part is radially arranged along the door third annular groove 13, the blocking part comprises a first limiting surface 15 and a second limiting surface 16, and the first limiting surface and the second limiting surface are respectively arranged on two sides of the blocking part along the annular direction of the door third annular groove;
the door three-drive gear 3-2 is arranged on a bottom shell, a limiting component 14 is arranged on the bottom shell, and the limiting component 14 is arranged in a door three-ring-shaped groove 13;
in the initial position, the first limiting surface is attached to one end surface of the limiting part 14;
when the motor rotates forwards, the motor finishes a forward rotation period until the second limiting surface is attached to the other end surface of the limiting part and reaches the end point position;
when the motor rotates reversely, the motor finishes a reverse rotation period until the first limiting surface is attached to one end surface of the limiting part 14 again and returns to the initial position.
Has the advantages that:
in the utility model, at least three air doors are connected with the same motor, so that air door channels are arranged adjacently in a centralized way, the space required when a driving mechanism is additionally arranged in the refrigerator is reduced, and the requirements of compact structure and miniaturization are realized; and the air door channel can realize three or more than three channels so as to meet the control requirement of multiple temperature chambers of the modern refrigerator.
The utility model discloses when first air door and second air door were closed, in the locking depressed part was closed in the embedding of circular arc peripheral part, the locking effect of certain degree was carried out to closing the locking depressed part to the circular arc peripheral part, restriction driven gear's rotation to the rotation of first door shaft gear of restriction or first air door under the closed condition.
The speed reduction final gear of the speed reduction gear train adopts a three-layer structure comprising an upper gear part, a middle gear part and a lower gear part, the rotation action of the speed reduction gear train is respectively transmitted to a third air door transmission gear train and a forward and reverse rotation gear train through one speed reduction final gear, and the speed reduction final gear is well matched with a double-layer structure formed by superposing the forward and reverse rotation gear train and the third air door transmission gear train.
The utility model discloses a positive and negative change gear train transmits two air door drive gear trains with the rotation of the final tooth of slowing down, and two air door drive gear trains are used for transmitting the rotation action to first air door and second air door respectively. In a rotation period of forward rotation of the motor, the forward and reverse rotation gear trains transmit one forward rotation and one reverse rotation to the two air door transmission gear trains; in a rotation period of the motor rotating reversely, the forward and reverse rotation gear trains transmit a forward rotation and a reverse rotation to the two air door transmission gear trains.
After the first and second dampers are opened, the arc outer peripheral portion is fitted into the opening lock recess portion. The arc outer peripheral portion performs a certain degree of locking action on the opening locking recessed portion to restrict rotation of the driven gear, thereby restricting rotation of the first door shaft gear or the first air door in the open state.
The utility model discloses a under single motor behavior, through the transmission of the various gear trains in the structure, under the different step number circumstances of motor operation, three air door corresponds the operating condition of 8 kinds of switch combinations of difference to reach the control purpose to every refrigerator warm area.
The positive and negative gear train and the third air door transmission gear train are overlapped and arranged in a double-layer mode, and the positive and negative gear train and the third air door transmission gear train are separated through the cover plate, so that the space occupied by the whole gear is greatly reduced.
A reset structure is designed between the driving gear train of the third door shaft and the bottom shell mounted on the driving gear train, so that when the air door is stopped in any state, an original point can be found and the air door can work again under the reset procedure.
Drawings
Fig. 1 is a schematic structural view of a multi-damper device of the present invention;
fig. 2 is a schematic structural view of a reduction gear train of the present invention;
FIG. 3 is a schematic structural view of the forward and reverse gear train of the present invention;
FIG. 4 is a schematic structural view of the forward and reverse gear train of the present invention;
FIG. 5 is a schematic structural view of the forward and reverse gear train of the present invention;
FIG. 6 is a schematic view of the door drive gear train of the present invention;
fig. 7 is a schematic structural view of the limiting component of the present invention;
FIG. 8 is a schematic view of the structure of the three annular grooves of the door of the present invention;
fig. 9 is a schematic structural view of the reset mechanism of the present invention;
fig. 10 is a schematic structural view of the reset mechanism of the present invention;
FIG. 11 is a timing diagram illustrating the operation of three dampers according to the present invention;
fig. 12 is a state diagram of three dampers according to the present invention.
Detailed Description
In order to make the purpose and technical solution of the embodiments of the present invention clearer, the following description will clearly and completely describe the technical solution of the embodiments of the present invention by combining the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The meaning of "inside and outside" in the present invention means that the direction pointing to the inside of the device is inside, and vice versa, relative to the device itself; and not to the specific limitations of the device mechanism of the present invention.
The utility model discloses in the meaning of "left and right" just right refer to the user just right when the utility model discloses install the drawing, the user's the left side is left promptly, and the user's the right is right promptly, and is not right the utility model discloses a device mechanism's specific injecing.
The term "connected" as used herein may mean either a direct connection between elements or an indirect connection between elements through other elements.
The meaning of "front and back" in the present invention is that when the user is right at the device drawing, the front of the user is front, and the back of the user is back.
The words relating to the position relationship such as "top", "bottom", "upper", "lower", "top", "bottom" and the like in the present invention are only for the purpose of describing the drawings, and are not intended to limit the structure of the present invention for the convenience of expressing the relative relationship between the respective components.
As shown in fig. 1-10, the utility model discloses a multi-damper device, including at least three air door and a motor, the drive power of at least three air door all comes from a motor.
The multi-damper device includes only one motor.
The air door device also comprises a transmission mechanism, and the motor drives each air door to move through the transmission mechanism.
The transmission mechanism comprises a speed reducing gear train and a door driving gear train, the motor is connected with the speed reducing gear train, and the speed reducing gear train is used for transmitting the rotating action of the motor.
As shown in fig. 1, the multi-damper device includes a first damper, a second damper and a third damper, the first damper is disposed on one side of the transmission mechanism and the motor, and the second damper and the third damper are disposed on the other side of the transmission mechanism and the motor.
The reduction gear train further comprises a reduction final tooth which is arranged at the tail end of the reduction gear train, is connected with the door driving gear train and is used for transmitting the rotation of the reduction gear train to the door driving gear train; the transmission of rotation between the reduction gear train and the door driving gear train is performed only through the reduction final gear.
As shown in fig. 2, the reduction final gear includes an upper gear part, a middle gear part and a lower gear part, wherein the diameter of the middle gear part is larger than the diameter of the upper gear part and the diameter of the lower gear part, respectively; the intermediate gear portion is engaged with a gear other than the reduction final gear of the reduction gear train for receiving the rotational motion of the reduction gear train.
In a rotation period of positive rotation of the motor, the first air door and the second air door complete opening and closing actions, and the third air door completes one of opening and closing actions; in a rotation period of the motor in reverse rotation, the first air door and the second air door complete opening and closing actions, and the third air door completes the other one of opening and closing actions.
The door driving gear train comprises a positive and negative rotating gear train, two air door transmission gear trains and a third air door transmission gear train, wherein the positive and negative rotating gear train is arranged between the speed reduction final tooth and the two air door transmission gear trains and is used for transmitting the rotation of the speed reduction final tooth to the two air door transmission gear trains; the speed reduction final tooth is connected with the third air door transmission gear train, and the rotation of the speed reduction final tooth is transmitted to the third air door transmission gear train.
As shown in fig. 6, the forward and reverse gear train and the third damper transmission gear train are stacked in a double-layer manner, the upper gear part of the speed reduction final gear is connected with the third damper rotation gear train, and the lower gear part of the speed reduction final gear is connected with the forward and reverse gear train.
In a rotation period of the motor forward rotation, the forward and reverse rotation gear train transmits a forward rotation and a reverse rotation to the two air door transmission gear trains; in a rotation period of the motor rotating reversely, the forward and reverse rotation gear trains transmit a forward rotation and a reverse rotation to the two air door transmission gear trains.
As shown in fig. 3-5, the forward and reverse rotation gear train comprises a driving double-layer gear 1-1, a driven double-layer gear 1-2 and a forward and reverse rotation gear 1-3, wherein the top full gear of the driving double-layer gear 1-1 is meshed with the lower gear part of the final reduction gear; the top full teeth of the driving double-layer gear 1-1 are meshed with the top full teeth of the driven double-layer gear 1-2; the incomplete teeth at the bottom of the driving double-layer gear 1-1 and the incomplete teeth at the bottom of the driven double-layer gear 1-2 are respectively and independently meshed with the forward and reverse rotating gear 1-3, and the incomplete teeth at the bottom of the driving double-layer gear 1-1 and the incomplete teeth at the bottom of the driven double-layer gear 1-2 cannot be simultaneously meshed with the forward and reverse rotating gear 1-3.
As shown in fig. 3, in an initial state, incomplete teeth at the top of the driving double-layer gear 1-1 are meshed with the forward and reverse rotating gear 1-3, and the forward and reverse rotating gear 1-3 is driven by the driving double-layer gear 1-1; as shown in fig. 4, with the rotation of the driving double-layer gear, when the incomplete top teeth of the driving double-layer gear are completely meshed with the forward and reverse rotating gears and the incomplete top teeth of the driving double-layer gear 1-1 are disengaged from the forward and reverse rotating gears 1-3, the incomplete top teeth of the driven double-layer gear 1-2 start to be meshed with the forward and reverse rotating gears 1-3, and the forward and reverse rotating gears 1-3 are driven by the driven double-layer gear 1-2.
As shown in fig. 6, the third damper transmission gear train includes a reduction gear 3-1, a door triple driving gear 3-2, and a third door shaft gear 3-3, wherein,
the reduction gear 3-1 comprises bottom layer teeth and top layer teeth, and the bottom layer teeth are meshed with the reduction final teeth;
the door three-driving gear 3-2 comprises a second bottom gear arranged at the bottom of the door three-driving gear and second top incomplete teeth arranged on the second bottom gear, and the second bottom gear is meshed with the top teeth; the second top incomplete teeth comprise a second wheel tooth part-1 and a second arc peripheral part-2 of the missing wheel tooth;
the third door spindle gear 3-3 comprises a third top complete gear tooth part arranged at the top of the third door spindle gear and a third bottom incomplete gear tooth part arranged at the lower part of the third top complete gear tooth part; the third bottom incomplete gear tooth portion comprises a third bottom gear tooth portion and a third locking recess recessed in the third bottom gear tooth portion; during the rotation of the door three-drive gear 3-2, the second gear tooth part-1 can be meshed with the third top complete gear tooth part, and the second circular arc outer peripheral part-2 can be embedded in the third locking concave part.
As shown in fig. 8-10, a door third annular groove 13 is formed at the bottom end of the door third driving gear 3-2, a resisting part is arranged in the door third annular groove 13, the resisting part is arranged along the radial direction of the door third annular groove 13, the resisting part comprises a first limiting surface 15 and a second limiting surface 16, and the first limiting surface and the second limiting surface are respectively arranged at two sides of the resisting part along the annular direction of the door third annular groove;
the door three-drive gear 3-2 is arranged on the bottom shell, a limiting component 14 is arranged on the bottom shell, and the limiting component 14 is arranged in the door three-ring-shaped groove 13;
in the initial position, the first limiting surface is attached to one end surface of the limiting part 14;
when the motor rotates forwards, the motor finishes a forward rotation period until the second limiting surface is attached to the other end surface of the limiting part and reaches the end point position;
when the motor rotates reversely, the motor finishes a reverse rotation period until the first limiting surface is attached to one end surface of the limiting part 14 again and returns to the initial position.
The rotation period of the motor is determined by the rotation condition of the door three-drive gear, and the forward rotation period and the reverse rotation period of the motor are limited in the mutual matching of all the parts of the reset mechanism by the reset mechanism consisting of the limiting part 14, the door three-ring-shaped groove 13 and the resisting part.
As shown in fig. 6, the two-air door transmission gear train comprises an accelerating gear 2-1, a double-door driving gear 2-2 and a driven gear 2-3, wherein the accelerating gear 2-1 comprises lower teeth and upper teeth, and the upper teeth are meshed with the forward and reverse rotating teeth 1-3;
the double-door driving gear 2-2 comprises a first bottom gear arranged at the bottom of the double-door driving gear and a first top incomplete gear arranged on the first bottom gear, the first bottom gear is meshed with the lower layer of teeth, a double-door annular groove is formed in the bottom end of the first bottom gear, and a pushing component is arranged in the double-door annular groove; the first top incomplete gear comprises a first gear tooth part and a first arc peripheral part of a missing gear tooth;
the driven gear 2-3 comprises a driven gear wheel tooth part, a driven wheel arc peripheral part lacking gear teeth and a pushing key which is arranged at the position opposite to the driven gear wheel tooth part and is positioned on the upper end surface of the driven wheel arc peripheral part;
the double-door driving gear 2-2 and the driven gear 2-3 are coaxially arranged; the pushing and blocking key can be rotatably arranged in the annular groove; when the double-door driving gear 2-2 rotates, the pushing and blocking part can be abutted against the pushing and blocking key and pushes the pushing and blocking key to move together, and then the driven gear 2-3 is driven to rotate.
The two-air door transmission gear train also comprises a first door shaft gear 2-4 and a second door shaft gear 2-5 which are coaxially arranged, wherein,
the first door spindle gear 2-4 includes a first top full gear tooth portion provided at a top thereof and a first bottom incomplete gear tooth portion provided at a lower portion of the first top full gear tooth portion, the first bottom incomplete gear tooth portion including a first bottom gear tooth portion and a first locking recess recessed in the first bottom incomplete gear tooth portion; in the rotation process of the double-door driving gear 2-2, the first gear tooth part can be meshed with the first top complete gear tooth part, and the first arc outer peripheral part can be embedded in the first locking concave part;
the second shaft gear 2-5 comprises a second top complete gear tooth part arranged at the top of the second shaft gear and a second bottom incomplete gear tooth part arranged at the lower part of the second top complete gear tooth part, and the second bottom incomplete gear tooth part comprises a second bottom gear tooth part and a second locking concave part sunken in the second bottom incomplete gear tooth part; in the rotation process of the driven gear 2-3, the gear tooth part of the driven gear can be meshed with the complete gear tooth part of the second top part, and the circular arc outer peripheral part of the driven gear can be embedded in the second locking concave part;
the diameter of the bottom complete gear is smaller than that of the driving top incomplete gear; the diameter of the outer periphery of the upper layer arc is larger than that of the outer periphery of the lower layer arc; the diameter of the upper layer arc periphery part is close to the diameter of the driving wheel tooth part.
As shown in the timing chart of fig. 10, in the initial state, the motor rotates forward for one period and then rotates backward for one period to return to the original point, which is a work cycle. In a period of positive rotation of the motor, the first air door and the second air door work for 1 cycle, and the third air door works for half a cycle; in a period of motor reverse rotation, the first damper and the second damper operate for the same cycle, and the third damper operates for the other half of the cycle, so that the superposition of 8 different operating states, such as the damper state shown in fig. 11, can be realized. The diagonal lines in the timing chart represent the process of door opening and closing. By means of a graph of the door opening and closing states, 8 state combination points of the opening and closing of the three dampers can be found. The number of steps of the motor is determined according to the characteristics of the motor and the gear ratio of the gear train.
The above description is only for the embodiments of the present invention, and the description is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several changes and modifications can be made, which all fall within the scope of the present invention.
Claims (11)
1. The utility model provides a multi-damper device, includes at least three air door and a motor, its characterized in that, the drive power of at least three air door all comes from a motor, only include a motor among the multi-damper device, multi-damper device still includes drive mechanism, the motor passes through each air door motion of drive mechanism drive, wherein, drive mechanism includes reduction gear, the motor is connected with reduction gear, reduction gear is used for transmitting the rotation action of motor.
2. The multi-damper apparatus of claim 1, wherein the multi-damper apparatus includes a first damper, a second damper and a third damper, the first damper being disposed on one side of the actuator and the motor, the second damper and the third damper each being disposed on the other side of the actuator and the motor.
3. The multi-damper apparatus of claim 2, wherein the transmission mechanism includes a door driving gear train, the reduction gear train further including a reduction final gear provided at an end of the reduction gear train and connected to the door driving gear train for transmitting rotation of the reduction gear train to the door driving gear train; the transmission of rotation between the reduction gear train and the door driving gear train is performed only through the reduction final gear.
4. A multi-wind door apparatus according to claim 3, wherein said reduction final gear comprises an upper gear portion, a middle gear portion and a lower gear portion, wherein the diameters of said middle gear portion are larger than the diameters of said upper gear portion and said lower gear portion, respectively; the middle gear part is meshed with other gears except the speed reducing final gear of the speed reducing gear train and is used for receiving the rotation action of the speed reducing gear train.
5. The multi-damper apparatus of claim 4, wherein during a rotation cycle when the motor is rotating in the forward direction, the first damper and the second damper complete opening and closing, and the third damper completes one of opening and closing; in a rotation period of the motor in reverse rotation, the first air door and the second air door complete opening and closing actions, and the third air door completes the other one of opening and closing actions.
6. The multi-damper device of claim 5, wherein the door driving gear train includes a forward and reverse gear train, a two-damper transmission gear train, and a third-damper transmission gear train, the forward and reverse gear train being disposed between the reduction final gear and the two-damper transmission gear train for transmitting rotation of the reduction final gear to the two-damper transmission gear train; and the speed reduction final tooth is connected with the third air door transmission gear train and transmits the rotation of the speed reduction final tooth to the third air door transmission gear train.
7. The multi-damper device of claim 6, wherein the forward and reverse gear train and the third damper transmission gear train are stacked in a double layer, the upper gear portion of the speed reduction final gear is connected to the third damper transmission gear train, and the lower gear portion of the speed reduction final gear is connected to the forward and reverse gear train.
8. The multi-damper door assembly of claim 7, wherein the forward and reverse gear trains transmit a forward rotation and a reverse rotation to the two-damper drive gear train during a rotation cycle of the motor forward rotation; in a rotation period of the motor rotating reversely, the forward and reverse rotation gear trains transmit a forward rotation and a reverse rotation to the two air door transmission gear trains.
9. A multi-damper device according to any of claims 6-8, characterized in that the gear train for forward and reverse rotation comprises a driving double gear (1-1), a driven double gear (1-2) and a forward and reverse gear (1-3), the top full teeth of the driving double gear (1-1) and the lower gear part of the final reduction gear are meshed with each other; the top full teeth of the driving double-layer gear (1-1) are meshed with the top full teeth of the driven double-layer gear (1-2); the incomplete teeth at the bottom of the driving double-layer gear (1-1) and the incomplete teeth at the bottom of the driven double-layer gear (1-2) are respectively and independently meshed with the forward and reverse rotating gears (1-3), and the incomplete teeth at the bottom of the driving double-layer gear (1-1) and the incomplete teeth at the bottom of the driven double-layer gear (1-2) cannot be meshed with the forward and reverse rotating gears (1-3) simultaneously.
10. A multi-damper arrangement according to claim 9, characterized in that the third damper transmission gear train comprises a reduction gear (3-1), a door triple drive gear (3-2) and a third door spindle gear (3-3), wherein,
the reduction gear (3-1) comprises bottom layer teeth and top layer teeth, and the bottom layer teeth are meshed with the reduction final teeth;
the door three-driving gear (3-2) comprises a second bottom gear arranged at the bottom of the door three-driving gear and a second top incomplete tooth arranged on the second bottom gear, and the second bottom gear is meshed with the top layer tooth; the second top incomplete teeth comprise second gear teeth parts and second arc peripheral parts of missing gear teeth;
the third door shaft gear (3-3) comprises a third top complete gear tooth part arranged at the top of the third door shaft gear and a third bottom incomplete gear tooth part arranged below the third top complete gear tooth part; the third bottom partial gear tooth portion comprises a third bottom gear tooth portion and a third locking recess recessed in the third bottom gear tooth portion; during the rotation process of the door three-drive gear (3-2), the second gear tooth part can be meshed with the third top complete gear tooth part, and the second arc outer peripheral part can be embedded in the third locking concave part.
11. A multi-damper device according to claim 10, wherein the bottom end of the door three-driving gear (3-2) is provided with a door three-ring groove (13), and a resisting part is arranged in the door three-ring groove (13), the resisting part is arranged along the radial direction of the door three-ring groove (13), the resisting part comprises a first limiting surface (15) and a second limiting surface (16), and the first limiting surface and the second limiting surface are respectively arranged on two sides of the resisting part along the annular direction of the door three-ring groove;
the door three-drive gear (3-2) is installed on a bottom shell, a limiting component (14) is arranged on the bottom shell, and the limiting component (14) is arranged in a door three-ring-shaped groove (13);
when in the initial position, the first limiting surface (15) is attached to one end surface of the limiting part (14);
when the motor rotates forwards, the motor finishes a forward rotation period until the second limiting surface (16) is attached to the other end surface of the limiting part and reaches the end point position;
when the motor rotates reversely, the motor finishes a reverse rotation period until the first limiting surface (15) is attached to one end surface of the limiting part (14) again and returns to the initial position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822226836.XU CN210220358U (en) | 2018-12-27 | 2018-12-27 | Multi-air door device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822226836.XU CN210220358U (en) | 2018-12-27 | 2018-12-27 | Multi-air door device |
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| CN210220358U true CN210220358U (en) | 2020-03-31 |
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| CN201822226836.XU Active CN210220358U (en) | 2018-12-27 | 2018-12-27 | Multi-air door device |
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| CN (1) | CN210220358U (en) |
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