CN108895750B - Multi-air-door device - Google Patents
Multi-air-door device Download PDFInfo
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- CN108895750B CN108895750B CN201810694207.1A CN201810694207A CN108895750B CN 108895750 B CN108895750 B CN 108895750B CN 201810694207 A CN201810694207 A CN 201810694207A CN 108895750 B CN108895750 B CN 108895750B
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- 238000000034 method Methods 0.000 claims description 2
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- 230000009467 reduction Effects 0.000 description 4
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
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- Power-Operated Mechanisms For Wings (AREA)
Abstract
The invention relates to a multi-air door device, which comprises at least three air doors, wherein at least three air doors are connected with the same driving mechanism, the number of the air doors is four, five or six, and the air doors are all positioned on the same side of the driving mechanism. At least three air doors are connected with the same driving mechanism, so that air door channels are arranged intensively and adjacently, the space required by additionally arranging the driving mechanism in the refrigerator is reduced, and the requirements of compact structure and miniaturization are met; and the air door channels can realize three or more multi-channels so as to meet the control requirement of multiple temperature chambers of the modern refrigerator.
Description
Technical Field
The invention belongs to the technical field of control devices for cold air channels of refrigerators, and particularly relates to a multi-air-door device.
Background
The traditional single-channel electric air door is mainly composed of a door frame 11, a door plate 12, a cover plate 13, a motor 14, a speed reduction gear train 15 and the like, and is driven by the motor to move through the speed reduction gear train, and finally, the door plate is driven by a door shaft gear 101 directly connected with the door plate to rotate around the axis of the door plate, so that the door plate is opened and closed, namely, the opening and closing states are provided for a cold air channel in the refrigerator, and the effective control of the temperature in the refrigerator is realized.
The conventional dual-channel electric air door, as shown in fig. 3, mainly comprises a first door frame 102, a second door frame 103, a first door plate 104, a second door plate 105, a motor 110, a speed reduction gear train and other parts, wherein the motor drives the speed reduction gear train to move, a left side front gear 106 drives a left side rear gear 107 to enable the first door plate 104 to rotate around the axis thereof, and because the left side front gear 106 and a right side front gear 108 are stacked together with the same axis, the right side front gear 108 can rotate along with the same axis, thereby driving the right side rear gear 109 to rotate, finally driving the second door plate 105 to rotate around the axis, the first door plate and the second door plate realize opening and closing actions, namely, two states of opening and closing are provided for a cold air channel in the refrigerator, and effective control of two different area temperatures in the refrigerator is realized. Patent document CN1162671C discloses a double regulating valve device in which dampers are provided on both sides of a driving portion. The air channels of the two air doors are respectively arranged on two sides of the gear box (driving mechanism), the distance is far, and the refrigerator is not economical enough because larger space is required when the air channels are arranged inside the refrigerator.
Along with the continuous promotion of social development and resident living standard, a plurality of different temperature areas are required to be arranged in the refrigerator, the traditional single-channel and double-channel electric air door can not meet the requirements obviously, the market has urgent requirements on the multi-channel electric air door, and the plurality of different temperature areas in the refrigerator are regulated and controlled; meanwhile, in the design of the multi-channel electric air door, in order to facilitate the design of an air channel in the refrigerator, the space of the refrigerator is saved, and 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; in the prior art, a single driving mechanism is used for controlling a single air door or two air doors, and for controlling more than three air doors, the number of the driving mechanisms is increased to realize the control of more than three air doors, so that the manufacturing cost is increased, the space for accommodating the driving mechanisms is also increased, and the storage space of the refrigerator is not beneficial to saving.
Disclosure of Invention
The invention aims at: in order to overcome the defects in the prior art, a multi-air door device is provided, at least three air doors of the multi-air door device are connected with the same driving mechanism, so that air door channels are arranged intensively and adjacently, and the requirements of compact structure and miniaturization are met; and the air door channels can realize three or more multi-channels so as to meet the control requirement of multiple temperature chambers of the modern refrigerator.
In order to achieve the purpose of the invention, the invention provides the following technical solutions:
a multi-air door device comprises at least three air doors, wherein at least three air doors are connected with the same driving mechanism.
Further, the number of the air doors is four, five or six.
Further, the air doors are all positioned on the same side of the driving mechanism.
Further, the driving mechanism includes:
A power mechanism for providing power;
The first transmission mechanism is used for transmitting the action of the power mechanism to the first air door;
the second transmission mechanism is used for transmitting the action of the power mechanism to the second air door;
and the third transmission mechanism is used for transmitting the action of the power mechanism to the third air door.
Further, the first transmission mechanism includes:
A first driving double gear 41 for transmitting the motion of the power mechanism;
the first driven gear 51, which meshes with the first driving double gear 41 and is driven by the first driving double gear 41;
A first worm 61 engaged with the first driven gear 51 and driven by the first driven gear 51;
A first worm wheel 71 which meshes with the first worm 61 and is driven by the first worm 61;
the first door panel 81 has a rotation shaft connected to the first worm wheel 71 and driven by the first worm wheel 71.
Further, the first driving duplex gear 41 includes a driving bottom gear 41-2 provided at the bottom thereof and a driving top incomplete gear 41-1 provided on the driving bottom gear 41-2, the driving top incomplete gear 41-1 including a driving gear tooth portion 41-1-1 and a circular arc peripheral portion 41-1-2 with missing gear teeth.
Further, the first driven duplex gear 51 includes a driven bottom gear 51-3 provided at the bottom thereof and a driven top gear 51-4 provided on the driven bottom gear 51-3, the driven top gear 51-4 includes a top complete gear tooth portion 51-1 provided at the upper end surface of the driven bottom gear 51-3 and a top incomplete gear tooth portion 51-2 provided at the upper portion of the top complete gear 51-1, the top incomplete gear tooth portion 51-2 including a top gear tooth portion 51-2-1 and a locking recess portion 51-2-2 recessed in the top gear tooth portion 51-2-1; during the transmission operation of the driving duplex gear 41, the driving gear tooth portion 41-1-1 and the top complete gear tooth portion 51-1 can be engaged with each other, and the circular arc peripheral portion 41-1-2 can be embedded into the locking recess portion 51-2-2.
Further, the locking concave portion 51-2-2 comprises a closing locking concave portion 51-2-2-1 and an opening locking concave portion 51-2-2, wherein the closing locking concave portion 51-2-2-1, the opening locking concave portion 51-2-2-2 and the top gear tooth portion 51-2-1 are arranged at intervals; when the first damper 81 is closed, the circular arc outer peripheral portion 41-1-2 is fitted into the closing lock recess 51-2-2-1; after the first damper 81 is opened, the circular arc outer peripheral portion 41-1-2 is fitted into the opening locking recess 51-2-2-2
Further, the second transmission mechanism includes:
A second driving double gear 42 for transmitting the motion of the power mechanism;
A second driven gear 52 engaged with the first driving double gear 42 and driven by the first driving double gear 42;
A second worm 62 meshed with the first driven gear 52 and driven by the first driven gear 52;
A second worm wheel 72 which meshes with the first worm 62 and is driven by the first worm 62;
The second door 82 has a rotation shaft connected to the first worm gear 72 and driven by the first worm gear 72.
Further, the first driving duplex gear 42 includes a driving bottom gear 42-2 provided at the bottom thereof and a driving top incomplete gear 42-1 provided on the driving bottom gear 42-2, the driving top incomplete gear 42-1 including a driving gear tooth portion 42-1-1 and a circular arc peripheral portion 42-1-2 with missing gear teeth.
Further, the first driven duplex gear 52 includes a driven bottom gear 52-3 provided at the bottom thereof and a driven top gear 52-4 provided on the driven bottom gear 52-3, the driven top gear including a top full gear tooth portion 52-1 provided at an upper end face of the driven bottom gear 52-3 and a top incomplete gear tooth portion 52-2 provided at an upper portion of the top full gear 52-1, the top incomplete gear tooth portion 52-2 including a top gear tooth portion 52-2-1 and a locking recess portion 52-2-2 recessed in the top gear tooth portion 52-2-1; during the transmission operation of the driving duplex gear 42, the driving gear tooth portion 42-1-1 and the top complete gear tooth portion 52-1 can be engaged with each other, and the circular arc peripheral portion 42-1-2 can be embedded into the locking recess portion 52-2-2.
Further, the locking recess 52-2-2 includes a closing locking recess 52-2-2-1 and an opening locking recess 52-2-2, the closing locking recess 52-2-2-1, the opening locking recess 52-2-2-2 and the top gear tooth 52-2-1 being spaced apart; when the second damper 82 is closed, the circular arc outer peripheral portion 42-1-2 is fitted into the closing lock recess 52-2-2-1; after the second damper 82 is opened, the circular arc outer peripheral portion 42-1-2 is fitted into the opening locking recess 52-2-2-2
Further, the third transmission mechanism includes:
A cam gear 43 for transmitting the motion of the power mechanism, which includes a cam gear tooth portion 43-1 and a concave-convex portion 43-2 provided on the side surface of the cam gear tooth portion 43-1;
The third door panel 83 including a rotation shaft, door panel abutting parts 83-1 and door panel parts 83-2 respectively provided at both sides of the rotation shaft, the third door panel 83 being rotatable around the rotation shaft;
The ejector pin 53, one end of which abuts against the concave-convex portion 43-2 of the cam gear 43, and the other end of which abuts against the door plate abutting portion 83-1, and which follows the cam gear 43;
Further, the concave-convex portion 43-2 includes a concave portion 43-2-1, a convex portion 43-2-2, and a slope 43-2-3 provided between the concave portion 43-2-1 and the convex portion 43-2-2, the height of the concave portion 43-2-1 is smaller than the height of the convex portion 43-2-2 based on the side surface of the cam gear tooth portion 43-1 as a base, and the height of the slope 43-2-3 gradually transitions from the concave portion 43-2-1 to the convex portion 43-2-2.
The beneficial effects are that:
at least three air doors are connected with the same driving mechanism, so that air door channels are arranged intensively and adjacently, the space required by additionally arranging the driving mechanism in the refrigerator is reduced, and the requirements of compact structure and miniaturization are met; and the air door channels can realize three or more multi-channels so as to meet the control requirement of multiple temperature chambers of the modern refrigerator.
When the first air door and the second air door are closed, the circular arc outer periphery is embedded into the closing locking concave part, the circular arc outer periphery performs a certain locking effect on the closing locking concave part, and the rotation of the driven gear is limited, so that the rotation of the first door shaft gear or the first air door in a closed state is limited.
After the first and second dampers are opened, the circular arc outer peripheral portion is fitted into the opening locking recess portion. The circular arc outer periphery performs a certain locking function on the unlocking locking concave part to limit the rotation of the driven gear, so that the rotation of the first door shaft gear or the first air door in the unlocking state is limited.
The purpose of using worm gears in the first and second transmission mechanisms as direct transmission members for the first and second dampers is to change the spatial transmission direction, which has the advantage that: compact structure, stable transmission, low noise and self-locking in transmission.
The invention adopts the cam gear and the ejector rod as the transmission structure of the air door, and has the advantages that: under the condition that the action time of the first air door and the second air door is determined, the opening and closing time period of the third air door is set by adjusting the transmission ratio between the second driving duplex gear and the cam gear (such as by adjusting the number of teeth of the carrier gear meshed with the driving bottom gear at the bottom of the second driving duplex gear), so that the structure of controlling more than three air doors simultaneously by the same driving mechanism can be realized and orderly work can be realized.
Drawings
FIG. 1 is a prior art single channel motorized damper;
FIG. 2 is a gear train configuration of a single pass motorized damper of the prior art;
FIG. 3 is a schematic view of a prior art dual duct electric damper;
FIG. 4 is a schematic view of the structure of the multi-damper apparatus of the present invention;
FIG. 5 is a side schematic view of FIG. 4;
FIG. 6 is a schematic structural view of a first drive double gear of the present invention;
FIG. 7 is a schematic view of the structure of the first driven gear of the present invention;
FIG. 8 is a schematic structural view of a second drive double gear of the present invention;
fig. 9 is a schematic structural view of a second driven gear of the present invention;
FIG. 10 is a perspective view of a first or second door panel and a first or second worm gear of the present invention;
FIG. 11 is a partial assembly view of the present invention;
FIG. 12 is a schematic view of the third door panel of the present invention when closed;
FIG. 13 is a schematic view of the third door panel of the present invention when opened;
fig. 14 is a schematic view of the mechanism of the cam gear of the present invention.
Detailed Description
In order to make the purpose and technical solutions of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present invention fall within 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 "and/or" in the present invention means that each exists alone or both exist.
The meaning of "inside and outside" in the present invention means that the direction of the inside of the pointing device is inside with respect to the device itself, and vice versa, without specific limitation to the mechanism of the apparatus of the present invention.
The meaning of "left and right" in the present invention means that when the reader is right to the drawing, the left side of the reader is left, and the right side of the reader is right, and is not specific limitation to the mechanism of the device of the present invention.
"Connected" as used herein means either a direct connection between components or an indirect connection between components via other components.
The terms "top", "bottom", "upper", "lower", "top" and "bottom" are used herein for convenience of description and for convenience of expressing the relative relationship between the various components, and do not constitute a specific limitation on the structure of the present invention.
The terms "drive mechanism", "drive means", "drive unit" and the like in the present invention refer to a combination comprising a power mechanism and a transmission mechanism, typically a motor and a gear train.
As shown in fig. 4 and 5, the multi-damper apparatus of the present invention includes at least three dampers, at least three of which are connected to the same driving mechanism. The same driving mechanism refers to a mechanism driven by one power mechanism, and the transmission mechanisms are all connected with the same power mechanism.
The air doors are all positioned on the same side of the driving mechanism, so that the requirements of compact structure and miniaturization are met.
As a preferred embodiment, the driving mechanism includes:
A power mechanism for providing power;
The first transmission mechanism is used for transmitting the action of the power mechanism to the first air door;
the second transmission mechanism is used for transmitting the action of the power mechanism to the second air door;
and the third transmission mechanism is used for transmitting the action of the power mechanism to the third air door.
If the number of the air doors controlled by the same driving mechanism is expanded to more than 3, the number of the corresponding driving mechanisms is correspondingly expanded, and one air door corresponds to one transmission mechanism.
As a preferred embodiment, the first transmission mechanism includes:
A first driving double gear 41 for transmitting the motion of the power mechanism;
the first driven gear 51, which meshes with the first driving double gear 41 and is driven by the first driving double gear 41;
A first worm 61 engaged with the first driven gear 51 and driven by the first driven gear 51;
A first worm wheel 71 which meshes with the first worm 61 and is driven by the first worm 61;
As shown in fig. 10 and 11, the first door panel 81 has a rotation shaft connected to the first worm wheel 71 and driven by the first worm wheel 71.
As shown in fig. 6, the first driving duplex gear 41 includes a driving bottom gear 41-2 provided at the bottom thereof and a driving top incomplete gear 41-1 provided on the driving bottom gear 41-2, the driving top incomplete gear 41-1 including a driving gear tooth portion 41-1-1 and a circular arc outer peripheral portion 41-1-2 where gear teeth are missing.
As shown in fig. 7, the first driven duplex gear 51 includes a driven bottom gear 51-3 provided at the bottom thereof and a driven top gear 51-4 provided on the driven bottom gear 51-3, the driven top gear 51-4 includes a top full gear tooth portion 51-1 provided at the upper end surface of the driven bottom gear 51-3 and a top incomplete gear tooth portion 51-2 provided at the upper portion of the top full gear 51-1, the top incomplete gear tooth portion 51-2 including a top gear tooth portion 51-2-1 and a locking recess portion 51-2-2 recessed in the top gear tooth portion 51-2-1; during the transmission operation of the driving duplex gear 41, the driving gear tooth portion 41-1-1 and the top complete gear tooth portion 51-1 can be engaged with each other, and the circular arc peripheral portion 41-1-2 can be embedded into the locking recess portion 51-2-2.
As shown in fig. 7, the locking recess 51-2-2 includes a closing locking recess 51-2-2-1 and an opening locking recess 51-2-2-1, the closing locking recess 51-2-2-1, the opening locking recess 51-2-2-2 and the top gear tooth 51-2-1 being spaced apart; when the first damper 81 is closed, the circular arc outer peripheral portion 41-1-2 is fitted into the closing lock recess 51-2-2-1; after the first damper 81 is opened, the circular arc outer peripheral portion 41-1-2 is fitted into the opening locking recess 51-2-2-2
As shown in fig. 4, the second transmission mechanism includes:
A second driving double gear 42 for transmitting the motion of the power mechanism;
A second driven gear 52 engaged with the first driving double gear 42 and driven by the first driving double gear 42;
A second worm 62 meshed with the first driven gear 52 and driven by the first driven gear 52;
A second worm wheel 72 which meshes with the first worm 62 and is driven by the first worm 62;
as shown in fig. 10 and 11, the second door 82 has a rotation shaft connected to the first worm gear 72 and driven by the first worm gear 72.
As shown in fig. 8, the first driving duplex gear 42 includes a driving bottom gear 42-2 provided at the bottom thereof and a driving top incomplete gear 42-1 provided on the driving bottom gear 42-2, the driving top incomplete gear 42-1 including a driving gear tooth portion 42-1-1 and a circular arc outer peripheral portion 42-1-2 where gear teeth are missing.
As shown in fig. 9, the first driven duplex gear 52 includes a driven bottom gear 52-3 provided at the bottom thereof and a driven top gear 52-4 provided on the driven bottom gear 52-3, the driven top gear including a top full gear tooth portion 52-1 provided at the upper end surface of the driven bottom gear 52-3 and a top incomplete gear tooth portion 52-2 provided at the upper portion of the top full gear 52-1, the top incomplete gear tooth portion 52-2 including a top gear tooth portion 52-2-1 and a locking recess portion 52-2-2 recessed in the top gear tooth portion 52-2-1; during the transmission operation of the driving duplex gear 42, the driving gear tooth portion 42-1-1 and the top complete gear tooth portion 52-1 can be engaged with each other, and the circular arc peripheral portion 42-1-2 can be embedded into the locking recess portion 52-2-2.
As shown in fig. 9, the locking recess 52-2-2 includes a closing locking recess 52-2-2-1 and an opening locking recess 52-2-2, the closing locking recess 52-2-2-1, the opening locking recess 52-2-2-2 and the top gear tooth 52-2-1 being spaced apart; when the second damper 82 is closed, the circular arc outer peripheral portion 42-1-2 is fitted into the closing lock recess 52-2-2-1; after the second damper 82 is opened, the circular arc outer peripheral portion 42-1-2 is fitted into the opening locking recess 52-2-2-2.
As shown in fig. 12 and 13, the third transmission mechanism includes:
A cam gear 43 for transmitting the motion of the power mechanism, which includes a cam gear tooth portion 43-1 and a concave-convex portion 43-2 provided on the side surface of the cam gear tooth portion 43-1;
The third door panel 83 including a rotation shaft, door panel abutting parts 83-1 and door panel parts 83-2 respectively provided at both sides of the rotation shaft, the third door panel 83 being rotatable around the rotation shaft;
The ejector pin 53, one end of which abuts against the concave-convex portion 43-2 of the cam gear 43, and the other end of which abuts against the door plate abutting portion 83-1, and which follows the cam gear 43;
As shown in fig. 14, the concave-convex portion 43-2 includes a concave portion 43-2-1, a convex portion 43-2-2, and a slope 43-2-3 provided between the concave portion 43-2-1 and the convex portion 43-2-2, the concave portion 43-2-1 is smaller in height than the convex portion 43-2-2 based on the side face of the cam gear tooth portion 43-1 as a base, and the height of the slope 43-2-3 gradually transitions from the concave portion 43-2-1 to the convex portion 43-2-2.
The third transmission mechanism further comprises a return spring 5, as shown in fig. 13, the cam gear 43 rotates to a high point, the ejector rod 53 is abutted against the convex part 43-2-2, and the other end is abutted against the abutting part 83-1 of the third door plate;
As shown in fig. 12, the cam gear 43 is turned to a low point, one end of the ejector 53 abuts against the concave portion 43-2-1, the other end abuts against the abutting portion 83-1 of the third door panel, and the third door panel 83 is closed by the urging force of the return spring 5.
During the rotation of the cam gear 43 from the low point to the high point, the ejector pin is always abutted against the slope 43-2-3, continuously pushing the ejector pin 53, gradually opening the third door panel 83, during which the return spring 5 is gradually compressed.
As shown in fig. 4, the present invention further includes a main gear 3, the main gear 3 may be a double gear, and an upper tooth portion of the main gear is engaged with the first driving double gear 41 and the second driving double gear 42, respectively, for transmitting the motion of the power mechanism to the first driving double gear 41 and the second driving double gear 42.
As shown in fig. 4, the transmission device further includes a first transmission gear 1 and a second transmission gear 2 for transmitting the motion of the power mechanism to the main gear 3.
As shown in fig. 4, the advantages of using the cam gear 43 and the jack 53 here are: in the case where the first damper and the second damper actuation time are determined, the opening and closing time periods for setting the third damper are achieved by adjusting the transmission ratio between the second driving duplex gear 42 and the cam gear 43 (e.g., by adjusting the number of teeth of the carrier gear 4 meshed with the driving bottom gear 42-2 at the bottom of the second driving duplex gear 42).
In the working process, the first air door and the second air door are opened and closed for 1 time, and the third air door can be opened and closed for a plurality of times, so that the combination of various states of the three air doors is achieved.
The invention can expand the number of the air doors controlled by the same driving mechanism to 4 or more, and the idea of multi-door expansion is realized by adding a mechanism combining a cam gear and a push rod.
The foregoing is a description of embodiments of the invention, which are specific and detailed, but are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention.
Claims (7)
1. The multi-air door device is characterized by comprising at least three air doors, wherein at least three air doors are connected with the same driving mechanism;
the air doors are all positioned on the same side of the driving mechanism;
the driving mechanism includes:
A power mechanism for providing power;
The first transmission mechanism is used for transmitting the action of the power mechanism to the first air door;
the second transmission mechanism is used for transmitting the action of the power mechanism to the second air door;
The third transmission mechanism is used for transmitting the action of the power mechanism to the third air door;
The first transmission mechanism includes:
A first driving double gear (41) for transmitting the motion of the power mechanism;
the first driven duplex gear (51) is meshed with the first driving duplex gear (41) and driven by the first driving duplex gear (41);
A first worm (61) which meshes with the first driven double gear (51) and is driven by the first driven double gear (51);
A first worm wheel (71) which meshes with the first worm (61) and is driven by the first worm (61);
a first door plate (81) whose rotation shaft is connected to the first worm wheel (71) and driven by the first worm wheel (71);
The first driving duplex gear (41) comprises a driving bottom gear (41-2) arranged at the bottom of the first driving duplex gear and a driving top incomplete gear (41-1) arranged on the driving bottom gear (41-2), wherein the driving top incomplete gear (41-1) comprises a driving gear tooth part (41-1-1) and an arc peripheral part (41-1-2) with missing gear teeth;
The first driven duplex gear (51) comprises a driven bottom gear (51-3) arranged at the bottom of the first driven duplex gear and a driven top gear (51-4) arranged on the driven bottom gear (51-3), wherein the driven top gear (51-4) comprises a top complete gear tooth part (51-1) arranged on the upper end face of the driven bottom gear (51-3) and a top incomplete gear tooth part (51-2) arranged on the upper part of the top complete gear tooth part (51-1), and the top incomplete gear tooth part (51-2) comprises a top gear tooth part (51-2-1) and a locking concave part (51-2-2) concave in the top gear tooth part (51-2-1); in the transmission action process of the first driving duplex gear (41), a driving gear tooth part (41-1-1) and a top complete gear tooth part (51-1) can be meshed with each other, and an arc peripheral part (41-1-2) can be embedded into a locking concave part (51-2-2);
the third transmission mechanism includes: a cam gear (43) for transmitting the motion of the power mechanism, comprising a cam gear tooth part (43-1) and a concave-convex part (43-2) arranged on the side surface of the cam gear tooth part (43-1);
The third door plate (83) comprises a rotating shaft, door plate abutting parts (83-1) and door plate parts (83-2) which are respectively arranged at two sides of the rotating shaft, and the third door plate (83) can rotate around the rotating shaft;
An ejector rod (53) having one end abutting against a concave-convex portion (43-2) of the cam gear (43) and the other end abutting against a door panel abutting portion (83-1) and driven by the cam gear (43);
The concave-convex portion (43-2) includes a concave portion (43-2-1), a convex portion (43-2-2), and a slope (43-2-3) provided between the concave portion (43-2-1) and the convex portion (43-2), the concave portion (43-2-1) is smaller in height than the convex portion (43-2-2) based on a side face of the cam gear tooth portion (43-1) as a base, and the height of the slope (43-2-3) gradually transitions from the concave portion (43-2-1) to the convex portion (43-2-2).
2. The multiple damper device of claim 1, wherein the dampers are four, five, or six.
3. The multi-damper apparatus according to claim 2, wherein the locking recess (51-2-2) includes a closing locking recess (51-2-2-1) and an opening locking recess (51-2-2-2), the closing locking recess (51-2-2-1), the opening locking recess (51-2-2-2) and the top gear tooth (51-2-1) being disposed at intervals; when the first air door (81) is closed, the circular arc peripheral part (41-1-2) is embedded into the closed locking concave part (51-2-2-1); after the first damper (81) is opened, the circular arc outer peripheral part (41-1-2) is fitted into the opening locking recess part (51-2-2-2).
4. A multi-damper apparatus as claimed in claim 3, wherein the second transmission mechanism includes:
A second driving double gear (42) for transmitting the motion of the power mechanism;
The second driven duplex gear (52) is meshed with the second driving duplex gear (42) and driven by the second driving duplex gear (42);
a second worm (62) meshed with the second driven double gear (52) and driven by the second driven double gear (52);
A second worm wheel (72) which meshes with the second worm (62) and is driven by the second worm (62);
And a second door panel (82) whose rotation shaft is connected to the second worm wheel (72) and driven by the second worm wheel (72).
5. The multiple damper device according to claim 4, wherein the second driving double gear (42) includes a driving bottom gear (42-2) provided at a bottom thereof and a driving top incomplete gear (42-1) provided on the driving bottom gear (42-2), the driving top incomplete gear (42-1) including a driving gear tooth portion (42-1-1) and a circular arc outer peripheral portion (42-1-2) of missing gear teeth.
6. The multiple damper device according to claim 4, wherein the second driven duplex gear (52) includes a driven bottom gear (52-3) provided at a bottom portion thereof and a driven top gear (52-4) provided on the driven bottom gear (52-3), the driven top gear including a top full gear tooth portion (52-1) provided at an upper end face of the driven bottom gear (52-3) and a top incomplete gear tooth portion (52-2) provided at an upper portion of the top full gear tooth portion (52-1), the top incomplete gear tooth portion (52-2) including a top gear tooth portion (52-2-1) and a locking recess portion (52-2-2) recessed in the top gear tooth portion (52-2-1); during the transmission action of the second driving duplex gear (42), the driving gear tooth part (42-1-1) and the top complete gear tooth part (52-1) can be meshed with each other, and the circular arc peripheral part (42-1-2) can be embedded into the locking concave part (52-2-2).
7. The multiple damper device according to claim 6, wherein the locking recess (52-2-2) includes a closing locking recess (52-2-2-1) and an opening locking recess (52-2-2-2), the closing locking recess (52-2-2-1), the opening locking recess (52-2-2-2) and the top gear tooth (52-2-1) being spaced apart; when the second air door (82) is closed, the circular arc peripheral part (42-1-2) is embedded into the closed locking concave part (52-2-2-1); after the second damper (82) is opened, the circular arc outer peripheral portion (42-1-2) is fitted into the opening locking recess portion (52-2-2-2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810694207.1A CN108895750B (en) | 2018-06-29 | 2018-06-29 | Multi-air-door device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810694207.1A CN108895750B (en) | 2018-06-29 | 2018-06-29 | Multi-air-door device |
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| CN108895750A CN108895750A (en) | 2018-11-27 |
| CN108895750B true CN108895750B (en) | 2024-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810694207.1A Active CN108895750B (en) | 2018-06-29 | 2018-06-29 | Multi-air-door device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111156765B (en) * | 2020-02-20 | 2021-10-15 | 海信（山东）冰箱有限公司 | A kind of refrigerator |
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| JPH0282078A (en) * | 1988-09-19 | 1990-03-22 | Hitachi Ltd | Freezing refrigerator |
| CN203948592U (en) * | 2014-05-22 | 2014-11-19 | 安徽省锦禾农业装备有限责任公司 | A kind of intermittent type gear |
| CN106766557A (en) * | 2017-01-24 | 2017-05-31 | 江苏雷利电机股份有限公司 | Air-supply arrangement for wind cooling refrigerator and the method blown using the device |
| CN107621119A (en) * | 2017-10-16 | 2018-01-23 | 合肥华凌股份有限公司 | Throttle setting and there is its refrigerator |
| CN207163057U (en) * | 2017-08-18 | 2018-03-30 | 江苏雷利电机股份有限公司 | Air-supply arrangement for wind cooling refrigerator and the refrigerator including the device |
| CN208765348U (en) * | 2018-06-29 | 2019-04-19 | 江苏凯德电控科技有限公司 | A kind of windy door gear |
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2018
- 2018-06-29 CN CN201810694207.1A patent/CN108895750B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0282078A (en) * | 1988-09-19 | 1990-03-22 | Hitachi Ltd | Freezing refrigerator |
| CN203948592U (en) * | 2014-05-22 | 2014-11-19 | 安徽省锦禾农业装备有限责任公司 | A kind of intermittent type gear |
| CN106766557A (en) * | 2017-01-24 | 2017-05-31 | 江苏雷利电机股份有限公司 | Air-supply arrangement for wind cooling refrigerator and the method blown using the device |
| CN207163057U (en) * | 2017-08-18 | 2018-03-30 | 江苏雷利电机股份有限公司 | Air-supply arrangement for wind cooling refrigerator and the refrigerator including the device |
| CN107621119A (en) * | 2017-10-16 | 2018-01-23 | 合肥华凌股份有限公司 | Throttle setting and there is its refrigerator |
| CN208765348U (en) * | 2018-06-29 | 2019-04-19 | 江苏凯德电控科技有限公司 | A kind of windy door gear |
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| CN108895750A (en) | 2018-11-27 |
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