CN212673613U - Air door device - Google Patents
Air door device Download PDFInfo
- Publication number
- CN212673613U CN212673613U CN202021428310.0U CN202021428310U CN212673613U CN 212673613 U CN212673613 U CN 212673613U CN 202021428310 U CN202021428310 U CN 202021428310U CN 212673613 U CN212673613 U CN 212673613U
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- wire
- baffle
- wire clamping
- heater
- thickness direction
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Abstract
A damper device is provided to help prevent a lead wire connected to a heater provided on a shutter from being separated from the shutter during opening and closing operations of the shutter. The utility model discloses an air door device includes: a frame having an opening; a shutter that opens and closes the opening by rotating about an axis; a driving part that drives the baffle; a heater disposed on the baffle; and a lead wire for supplying power to the heater, wherein a plurality of groove-shaped wire clamping portions are provided on an outer peripheral surface of the baffle, the plurality of wire clamping portions include a first wire clamping portion and a second wire clamping portion which are adjacent to each other, the first wire clamping portion opens toward one side in a plate thickness direction of the baffle, the second wire clamping portion opens toward the other side in the plate thickness direction of the baffle, and the lead wire extends from the heater to the first wire clamping portion via the second wire clamping portion and then is drawn out toward the other side in the plate thickness direction of the baffle toward the driving portion.
Description
Technical Field
The utility model relates to an air door device.
Background
In a refrigerator, in order to control cold air supplied to a food storage space such as a refrigerating chamber, a damper device is generally provided in a cold air passage that communicates a cold air generation source with the food storage space such as the refrigerating chamber.
The above-mentioned damper device generally includes: a frame having an opening; a shutter that opens and closes the opening by rotating about an axis; a driving part that drives the baffle; a heater disposed on the baffle; and a lead wire for supplying power to the heater, one end of the lead wire being connected to the heater, and the other end of the lead wire being led out toward the drive unit.
In order to avoid the influence of the lead wire hooking the shutter to the rotation of the shutter during the rotation of the shutter, it is common to provide a plurality of groove-like portions of the shutter that open to one side in the plate thickness direction of the shutter on the outer circumferential surface of the shutter and to catch the lead wire led out from the heater toward the driving portion by the plurality of groove-like portions of the shutter.
However, in the damper device described above, the shutter needs to be rotated back and forth, and therefore, the lead wire caught by the groove-like portions during assembly is likely to be detached from the groove-like portions during the back and forth rotation of the shutter, thereby affecting the rotation of the shutter.
SUMMERY OF THE UTILITY MODEL
The present invention has been made in view of the above problems, and an object of the present invention is to provide an air door device that helps prevent a lead wire connected to a heater provided on a baffle from being separated from the baffle during the opening and closing operation of the baffle.
In order to achieve the above object, the utility model provides an air door device, include: a frame having an opening; a shutter that opens and closes the opening by rotating about an axis; a driving part that drives the baffle; a heater disposed on the baffle; and a lead wire for supplying power to the heater, wherein a plurality of groove-shaped wire clamping portions are provided on an outer peripheral surface of the baffle, the plurality of wire clamping portions include a first wire clamping portion and a second wire clamping portion which are adjacent to each other, the first wire clamping portion opens toward one side in a plate thickness direction of the baffle, the second wire clamping portion opens toward the other side in the plate thickness direction of the baffle, and the lead wire extends from the heater to the first wire clamping portion via the second wire clamping portion and then is drawn out toward the other side in the plate thickness direction of the baffle toward the driving portion.
According to the utility model discloses an air door device is provided with a plurality of card line portions of slot-like on the outer peripheral face of baffle, these a plurality of card line portions include adjacent first card line portion and second card line portion, first card line portion is towards the opening of one side on the board thickness direction of baffle, second card line portion is towards the opening of the board thickness direction of baffle on the other side, the lead wire extends to first card line portion from the heater via second card line portion, then draw forth towards the drive division towards the opposite side on the board thickness direction of baffle, therefore, even baffle back and forth rotation, the lead wire is difficult for also breaking away from card line portion to avoid the lead wire to influence the rotation of baffle.
In the damper device according to the present invention, it is preferable that the plurality of wire locking portions include a third wire locking portion adjacent to the second wire locking portion on a side opposite to the first wire locking portion, the third wire locking portion opens toward one side of the baffle in the plate thickness direction, and the lead wire passes through the third wire locking portion, the second wire locking portion, and the first wire locking portion in this order from the heater, and is separated from the baffle and led out toward the driving portion.
According to the utility model discloses an air door device, a plurality of card line portion include third card line portion, and third card line portion is adjacent with second card line portion in the opposite side of first card line portion, and third card line portion is towards the one side opening on the board thickness direction of baffle, and the lead wire leaves the baffle and draws forth towards the drive division after passing third card line portion, second card line portion and first card line portion in proper order from the heater, therefore, the lead wire more is difficult for breaking away from card line portion in the back and forth rotation of baffle, can avoid the lead wire to influence the rotation of baffle more reliably.
In the damper device according to the present invention, it is preferable that the outer peripheral surface includes a side surface perpendicular to the axis and away from the driving portion, and the first line engaging portion, the second line engaging portion, and the third line engaging portion are provided on the side surface.
According to the utility model discloses an air door device, the outer peripheral face includes the side surface that just keeps away from the drive division with the axis is perpendicular, and first card line portion, second card line portion and third card line portion set up in the side surface, consequently, in the switching action of baffle, the lead wire is difficult for twisting together and the broken string.
In the damper device according to the present invention, it is preferable that the lead wire is abutted against each of the first engaging wire portion, the second engaging wire portion, and the third engaging wire portion to form a waveform in which an abutting portion between the lead wire and the third engaging wire portion and the first engaging wire portion is a valley and an abutting portion between the lead wire and the second engaging wire portion is a peak.
According to the utility model discloses an air door device, lead wire and first card line portion, second card line portion and third card line portion do not the butt and be the wave form that uses the butt portion of lead wire and third card line portion and first card line portion as the trough, uses the butt portion of lead wire and second card line portion as the crest, consequently, the lead wire more is difficult for breaking away from the card line portion in the rotation of making a round trip of baffle, can avoid the rotation that the lead wire influences the baffle more reliably.
In the damper device according to the present invention, it is preferable that the first seizing line portion is closer to the axis than the second seizing line portion, and the second seizing line portion is closer to the axis than the third seizing line portion.
According to the utility model discloses an air door device, first card line portion is close to the axis than second card line portion, and second card line portion is close to the axis than third card line portion, and consequently, the lead wire is difficult for causing the influence to the switching action of baffle.
In the damper device according to the present invention, it is preferable that the frame has a side wall perpendicular to the side surface and close to the axis, and a frame side engaging line portion is provided on the side wall, and the lead line extends from the first engaging line portion toward the driving portion via the frame side engaging line portion.
According to the utility model discloses an air door device, frame have with the side surface perpendicular and be close to the lateral wall of axis, be provided with frame side card line portion on the lateral wall, the lead wire extends towards the drive division from first card line portion via frame side card line portion, consequently, can avoid the part that is located between first card line portion and the drive division of lead wire to loosen, thereby avoid this lax lead wire part to influence the rotation of baffle.
In the damper device of the present invention, it is preferable that the heater is provided on a surface of the other side of the baffle plate in the plate thickness direction.
In the damper device according to the present invention, it is preferable that the first engaging portion, the second engaging portion, and the third engaging portion are formed by an outer peripheral surface of the damper and a hook portion protruding from the outer peripheral surface.
According to the present invention, since the first wire retaining portion, the second wire retaining portion, and the third wire retaining portion are formed by the outer peripheral surface of the baffle plate and the hook-shaped portion protruding from the outer peripheral surface, the lead wire can be easily retained in the first wire retaining portion, the second wire retaining portion, and the third wire retaining portion during assembly.
(effects of utility model)
According to the present invention, the plurality of groove-like seizing wire portions are provided on the outer peripheral surface of the baffle, and include the first seizing wire portion and the second seizing wire portion which are adjacent to each other, the first seizing wire portion opens toward one side in the plate thickness direction of the baffle, the second seizing wire portion opens toward the other side in the plate thickness direction of the baffle, the lead wire extends from the heater to the first seizing wire portion via the second seizing wire portion, and then is drawn out toward the drive portion toward the other side in the plate thickness direction of the baffle, and therefore, even if the baffle rotates back and forth, the lead wire is not easily detached from the first seizing wire portion and the second seizing wire portion, thereby preventing the lead wire from.
Drawings
Fig. 1 is a perspective view schematically showing a damper device according to an embodiment of the present invention.
Fig. 2 is a partial perspective view schematically showing a baffle plate included in the damper device according to the embodiment of the present invention.
Fig. 3 is a schematic view showing a side surface of a damper provided with a catch portion according to an embodiment of the present invention.
(symbol description)
1 air door device
10 frame
11 flat plate part
13 side wall part
131 first side wall part
132 second side wall portion
133 third sidewall part
134 fourth side wall part
20 baffle
21 baffle plate main body
21a outer peripheral surface
21a1 side surface
211 first wire clamping part
212 second wire clamping part
213 third card line part
30 drive part
31 shell
311 bottom wall part
312 side wall part
40 heater
41 copper foil
411 connecting part
42 film
50 lead wire
51 first lead
52 second lead
Detailed Description
Next, an air door device according to an embodiment of the present invention will be described with reference to fig. 1 to 3, wherein fig. 1 is a perspective view schematically showing an air door device according to an embodiment of the present invention, fig. 2 is a partial perspective view schematically showing a baffle plate included in the air door device according to an embodiment of the present invention, and fig. 3 is a view schematically showing a side surface of the baffle plate included in the air door device according to an embodiment of the present invention, the side surface being provided with a seizing portion.
Here, for convenience of explanation, three directions orthogonal to each other are set as an X direction, a Y direction, and a Z direction, and one side in the X direction is set as X1, the other side in the X direction is set as X2, one side in the Y direction is set as Y1, the other side in the Y direction is set as Y2, one side in the Z direction is set as Z1, the other side in the Z direction is set as Z2, and an extending direction of a rotation center line (i.e., an axis line) of the flapper is set to coincide with the X direction.
(integral construction of air door device)
As shown in fig. 1, the damper device 1 includes: a frame 10, the frame 10 having an opening; a shutter 20 that opens and closes the opening of the frame 10 by rotating the shutter 20 about an axis; a drive unit 30, the drive unit 30 driving the baffle 20; a heater 40, the heater 40 being provided to the baffle 20; and a lead 50, the lead 50 being used for power supply of the heater 40; further, as shown in FIGS. 1 to 3, a plurality of groove-shaped seizing portions are provided on the outer peripheral surface 21a of the baffle 20, the plurality of clamping line parts include a first clamping line part 211, a second clamping line part 212 and a third clamping line part 213, wherein the second wire jamming section 212 is adjacent to the first wire jamming section 211, the third wire jamming section 213 is adjacent to the second wire jamming section 212 on the side opposite to the first wire jamming section 211, the first wire jamming section 211 and the third wire jamming section 213 are opened toward one side (the side in the Z2 direction in fig. 1) in the plate thickness direction (the same direction as the Z direction in fig. 1) of the baffle plate 20, the second wire jamming section 212 is opened toward the other side (the side in the Z1 direction in fig. 1) in the plate thickness direction of the baffle plate 20, the lead wire 50 extends from the heater 40 to the first wire jamming section 211 via the third wire jamming section 213 and the second wire jamming section 212 in this order, then, the baffle plate 20 is drawn out toward the other side in the plate thickness direction (the side in the Z1 direction in fig. 1) toward the driving section 30.
Here, as shown in fig. 1, the entire frame 10 has a substantially rectangular parallelepiped shape. Specifically, the frame 10 includes a flat plate portion 11, a cylindrical convex portion (not shown), and a side wall portion 13. The flat plate portion 11 has a substantially rectangular outer shape as viewed in the plate thickness direction (Z direction in the illustrated example), and an opening (not illustrated) is formed in the center of the flat plate portion 11 and penetrates the flat plate portion 11 in the plate thickness direction (Z direction in the illustrated example) of the flat plate portion 11. The cylindrical protruding portion is provided on the flat plate portion 11 so as to surround the opening, and protrudes in the Z1 direction along the edge of the opening so that the shutter 20 abuts when the opening is closed. The side wall portion 13 protrudes from the outer peripheral edge of the flat plate portion 11 in the Z1 direction, and has a first side wall portion 131, a second side wall portion 132, a third side wall portion 133, and a fourth side wall portion 134, wherein the first side wall portion 131 and the third side wall portion 133 are opposed to each other (opposed in the Y direction in the illustrated example), the second side wall portion 132 and the fourth side wall portion 134 (opposed in the X direction in the illustrated example) connect both end portions of the first side wall portion 131 and the third side wall portion 133 to each other, and the fourth side wall portion 134 is connected to the driving portion 30.
As shown in fig. 1, the baffle 20 is rotatably supported by the frame 10. Specifically, the baffle 20 includes a baffle main body 21 and a buffer member (not shown). The baffle main body 21 has a substantially rectangular outer shape when viewed in the plate thickness direction (Z direction in the state of fig. 1), and has a size larger than the opening of the flat plate portion 11, and shaft portions (not shown) are provided on both end sides of one side (the side closer to the Y1 direction in the illustrated example) of the baffle 20, one of the shaft portions is supported by a bearing portion (not shown) provided on the second side wall portion 132, and the other shaft portion is supported by a bearing portion (not shown) provided on the fourth side wall portion 134. The cushioning member is a plate-like member provided on one surface of the baffle main body 21 in the plate thickness direction (the surface on the Z2 direction side of the baffle main body 21 in the state of fig. 1), has a substantially rectangular outer shape when viewed in the plate thickness direction (the Z direction in the state of fig. 1), has a size larger than the opening of the flat plate portion 11 but smaller than the baffle main body 21, and is made of, for example, sponge.
As shown in fig. 1, the driving unit 30 has a substantially rectangular parallelepiped shape. Specifically, the driving unit 30 includes a housing 31, a driving source (not shown), and a transmission unit (not shown). The case 31 has a rectangular parallelepiped box shape with one surface (a surface on the X1 direction side in the illustrated example) opened, and includes a bottom wall portion 311 and a side wall portion 312 rising from a peripheral edge of the bottom wall portion 311, and the case 31 is assembled with the frame 10 such that the opening thereof is closed by the fourth side wall portion 134 (in the illustrated example, the case 31 and the frame 10 are assembled together in the X direction by engagement coupling, but the present invention is not limited thereto). A driving source such as a motor and a transmission portion such as a reduction gear train are provided in the housing 31, and the transmission portion transmits power of the driving source to the shutter 20 to rotate the shutter 20 to open and close the opening.
As shown in fig. 1, the heater 40 is provided on the other surface (the Z1 direction side in fig. 1) in the plate thickness direction (the direction corresponding to the Z direction in fig. 1) of the baffle plate 20. The heater 40 has a rectangular sheet shape as a whole, and includes a copper foil 41 and a film 42 covering the copper foil 41. The copper foil 41 extends in a meandering shape over substantially the entire other surface of the baffle plate 20 in the plate thickness direction, and has connection portions 411 at both ends of the copper foil 41, to which the leads 50 are electrically connected. The film 42 is substantially rectangular as a whole and covers substantially the entire surface of the other side of the baffle plate 20 in the plate thickness direction.
Further, as shown in fig. 1, the lead 50 includes a first lead 51 and a second lead 52, one end of each of the first lead 51 and the second lead 52 is electrically connected to the connection portion 411 of the heater 40, and the other end of each of the first lead 51 and the second lead 52 is drawn out to the driving portion 30. The first and second lead wires 51 and 52 drawn out from the two connection portions 411 of the heater 40 are converged and then caught by the third wire catching portion 213, sequentially pass through the second wire catching portion 212 and the first wire catching portion 211, and are then drawn out toward the driving portion 30 away from the baffle plate 20.
(concrete arrangement of yarn seizing part)
As shown in fig. 1 to 3, the outer peripheral surface 21a of the flap 20 includes a side surface 21a1 perpendicular to the rotation center line (i.e., the axis) of the flap 20 and distant from the driving portion 30, and a plurality of catch portions including the first catch portion 211, the second catch portion 212, and the third catch portion 213 are provided on the side surface 21a1 (in the illustrated example, the catch portions are constituted by the outer peripheral surface 21a and hook portions protruding from the outer peripheral surface 21a, but are not limited thereto, and may be constituted by only groove portions protruding from the outer peripheral surface 21 a). As shown in fig. 2 and 3, the lead 50 abuts against the first wire-clamping portion 211, the second wire-clamping portion 212, and the third wire-clamping portion 213, respectively, and has a waveform in which an abutting portion of the lead 50 with the third wire-clamping portion 213 and the first wire-clamping portion 211 is a valley and an abutting portion of the lead 50 with the second wire-clamping portion 212 is a peak. The first wire trap portion 211 is closer to the rotation center line (i.e., axis) of the shutter 20 than the second wire trap portion 212, and the second wire trap portion 212 is closer to the rotation center line (i.e., axis) of the shutter 20 than the third wire trap portion 213.
(main effect of the present embodiment)
According to the damper device 1 of the present embodiment, since the groove-like plurality of seizing portions including the first seizing portion 211, the second seizing portion 212 and the third seizing portion 213 are provided on the outer peripheral surface 21a of the baffle 20, the second seizing portion 212 is adjacent to the first seizing portion 211, the third seizing portion 213 is adjacent to the second seizing portion 212 on the side opposite to the first seizing portion 211, the first seizing portion 211 and the third seizing portion 213 open to one side (the Z2 direction side in fig. 1) in the plate thickness direction of the baffle 20, the second seizing portion 212 opens to the other side (the Z1 direction side in fig. 1) in the plate thickness direction (the Z direction in fig. 1) of the baffle 20, the lead wire 50 extends from the heater 40 to the first seizing portion 211 via the third seizing portion 213 and the second seizing portion 212 in this order, and then is drawn out toward the other side in the plate thickness direction of the baffle 20 toward the driving portion 30, even if the shutter 20 rotates back and forth, the lead wires 50 are not easily separated from the first, second, and third wire clamping portions 211, 212, and 213, thereby preventing the lead wires 50 from affecting the rotation of the shutter 20.
Further, according to the damper device 1 of the present embodiment, since the outer peripheral surface 21a of the damper 20 includes the side surface 21a1 that is perpendicular to the rotation center line (i.e., the axis) of the damper 20 and is away from the driving portion 30, and the first wire retaining portion 211, the second wire retaining portion 212, and the third wire retaining portion 213 are provided on the side surface 21a1, the lead wire 50 having one end connected to the connecting portion 411 of the heater 40 is first drawn out in a direction away from the driving portion 30, then extends along the side surface 21a of the damper 20 away from the driving portion 30, and then extends toward the driving portion 30 side, whereby the lead wire 50 is less likely to twist and break during the opening and closing operation of the damper 20.
Further, according to the damper device 1 of the present embodiment, since the lead wire 50 abuts against each of the first, second, and third portions 211, 212, and 213 and has a waveform in which the abutting portion of the lead wire 50 with the third portion 213 and the first portion 211 is a valley and the abutting portion of the lead wire 50 with the second portion 212 is a peak, the lead wire 50 is less likely to come off from the first, second, and third portions 211, 212, and 213 during the back-and-forth rotation of the shutter 20, and the influence of the lead wire 50 on the rotation of the shutter 20 can be more reliably avoided.
The present invention has been described above by way of example with reference to the accompanying drawings, and it is to be understood that the specific implementations of the present invention are not limited to the above-described embodiments.
For example, in the above embodiment, the catching line portion is constituted by the outer peripheral surface 21a and the hook-shaped portion protruding from the outer peripheral surface 21a, but the invention is not limited to this, and the specific formation of the catching line portion may be appropriately changed as necessary.
In the above embodiment, the first wire retaining portion 211, the second wire retaining portion 212, and the third wire retaining portion 213 are provided on the outer peripheral surface 21a of the shutter 20, but the present invention is not limited to this, and the third wire retaining portion 213 may be omitted, and in this case, when the shutter 20 rotates back and forth, the lead wires 50 are less likely to come off from the first wire retaining portion 211, the second wire retaining portion 212, and the third wire retaining portion 213, and the lead wires 50 are prevented from affecting the rotation of the shutter 20.
In the above embodiment, the first wire retaining portion 211, the second wire retaining portion 212, and the third wire retaining portion 213 are provided on the outer peripheral surface 21a of the baffle plate 20, but the present invention is not limited to this, and more wire retaining portions may be provided between the one end portion of the lead wire 50 connected to the heater 40 and the third wire retaining portion 213.
Further, in the above-described embodiment, the first wire trap portion 211, the second wire trap portion 212, and the third wire trap portion 213 are provided on the side surface 21a1 that is perpendicular to the rotation center line (i.e., the axis) of the shutter 20 and is distant from the driving portion 30 in the outer peripheral surface 21a of the shutter 20, but not limited to this, the first wire trap portion 211, the second wire trap portion 212, and the third wire trap portion 213 may be provided on the side surface 21a1 in the outer peripheral surface 21a of the shutter 20 and the side surface (the side surface on the Y1 direction side in fig. 1) that is perpendicular to the side surface 21a1 and is close to the rotation center line (i.e., the axis) of the shutter 20, or the first wire trap portion 211, the second wire trap portion 212, and the third wire trap portion 213 may be provided only on the side surface that is perpendicular to the side surface 21a1 and is close to the rotation center line (i.e., the.
In the above embodiment, one or more frame-side portions may be provided on a side wall (the first side wall portion 131 in fig. 1) of the frame perpendicular to the side surface 21a1 and close to the rotation center line (i.e., the axis line) of the bezel 20, and the lead 50 may be extended from the first portion 211 away from the bezel 20 toward the driver 30 via the frame-side portions.
Furthermore, the utility model discloses an air door device can be applied to the refrigerator better.
It should be understood that the present invention can freely combine the respective components in the embodiments or appropriately change or omit the respective components in the embodiments within the scope thereof.
Claims (8)
1. A damper device comprising: a frame having an opening; a shutter that opens and closes the opening by rotating about an axis; a driving part that drives the baffle; a heater disposed on the baffle; and a lead wire for supplying power to the heater,
a plurality of groove-shaped wire clamping parts are arranged on the outer peripheral surface of the baffle,
the plurality of wire clamping parts comprise a first wire clamping part and a second wire clamping part which are adjacent,
the first wire retaining portion opens toward one side of the baffle plate in the plate thickness direction,
the second wire retaining portion is open toward the other side in the plate thickness direction of the baffle plate,
the lead wire extends from the heater to the first wire retaining portion via the second wire retaining portion, and is then drawn out toward the driving portion toward the other side in the plate thickness direction of the baffle plate.
2. The damper apparatus of claim 1,
the plurality of wire jamming portions comprise a third wire jamming portion,
the third wire trap portion is adjacent to the second wire trap portion on a side opposite to the first wire trap portion,
the third wire trap part is opened towards one side of the baffle plate in the plate thickness direction,
the lead wire is led out from the heater to the driving portion after passing through the third wire clamping portion, the second wire clamping portion and the first wire clamping portion in sequence and being separated from the baffle plate.
3. The damper apparatus of claim 2,
the outer peripheral surface includes a side surface perpendicular to the axis and remote from the driving portion,
the first wire clamping part, the second wire clamping part and the third wire clamping part are arranged on the side surface.
4. The damper apparatus of claim 3,
the lead wire is abutted against the first wire clamping part, the second wire clamping part and the third wire clamping part respectively to form a waveform with the abutting part of the lead wire, the third wire clamping part and the first wire clamping part as a wave trough and the abutting part of the lead wire and the second wire clamping part as a wave crest.
5. The damper apparatus of claim 3,
the first wire trap portion is closer to the axis than the second wire trap portion,
the second wire trap portion is closer to the axis than the third wire trap portion.
6. The damper apparatus of claim 3,
the frame has a side wall perpendicular to the side surface and proximate to the axis,
a frame side line clamping part is arranged on the side wall,
the lead wire extends from the first wire retaining portion toward the drive portion via the frame-side wire retaining portion.
7. The damper apparatus of claim 3,
the heater is provided on the other surface of the baffle plate in the plate thickness direction.
8. The damper apparatus of claim 3,
the first, second, and third snap line portions are formed of an outer circumferential surface of the shutter and hook portions protruding from the outer circumferential surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021428310.0U CN212673613U (en) | 2020-07-20 | 2020-07-20 | Air door device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021428310.0U CN212673613U (en) | 2020-07-20 | 2020-07-20 | Air door device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212673613U true CN212673613U (en) | 2021-03-09 |
Family
ID=74816340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021428310.0U Active CN212673613U (en) | 2020-07-20 | 2020-07-20 | Air door device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212673613U (en) |
-
2020
- 2020-07-20 CN CN202021428310.0U patent/CN212673613U/en active Active
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