CN210569471U - Refrigerator air duct - Google Patents
Refrigerator air duct Download PDFInfo
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- CN210569471U CN210569471U CN201921560217.2U CN201921560217U CN210569471U CN 210569471 U CN210569471 U CN 210569471U CN 201921560217 U CN201921560217 U CN 201921560217U CN 210569471 U CN210569471 U CN 210569471U
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Abstract
The utility model discloses a refrigerator wind channel relates to household electrical appliances refrigeration technology field. The utility model is fixedly provided with a rotary air door mechanism in the refrigeration air duct; the rotary air door mechanism comprises a lower sector plate and an upper sector plate arranged on the lower sector plate; the side surfaces of the lower sector plate and the upper sector plate are respectively fixedly connected with the inner wall of one opposite side surface of the refrigeration air duct; an arc-shaped plate is fixed in the middle of the arc-shaped edge of the lower fan-shaped plate. The utility model controls the motor to drive the two transmission rods to rotate in the defrosting process of the evaporator, so as to realize the rotation of the two baffles and realize that the air inlet arc-shaped opening is not communicated with the air outlet, thereby preventing hot air generated by defrosting from entering the compartment and influencing the temperature in the compartment; the normal supply of the cold energy in the compartment is ensured through the communication between the air inlet arc-shaped opening and the air outlet; the process effectively reduces the average fluctuation of the indoor temperature, avoids the frosting of the fan, and improves the running reliability of the fan and the taste of food.
Description
Technical Field
The utility model belongs to the technical field of the household electrical appliances refrigeration, especially, relate to a refrigerator wind channel.
Background
Large-volume air cooling is the main direction of the technical development of the refrigerator at present; the refrigeration of the air-cooled refrigerator is that an evaporator is arranged in a compartment, cold air is conveyed into each space to be refrigerated through an air channel by the rotation of a fan, and the cold air exchanges heat with hot air in the compartment and then returns to the evaporator through an air return channel to exchange heat again; in the process, the hot and humid air in the compartment enters the evaporator chamber and is condensed and frosted on the evaporator, so that the evaporator needs to be defrosted periodically to keep a good refrigeration effect; at present, the electric heating mode is generally adopted for defrosting regularly, hot gas forms air circulation through an original refrigerating air duct in the heating process, and the mode easily causes that the temperature fluctuation of the temperature in a compartment is large in the defrosting process, so that the fresh-keeping effect of food storage is influenced.
In order to solve the problems, a shielding mode is adopted for the shielding mode to block the air circulation in the defrosting process in related similar patents, for example, the Chinese utility model with the application number of CN201611237095.4 discloses a constant temperature refrigerator and a control method thereof, for example, as shown in figure 1, a shielding device is designed on a cooling fan, when an evaporator defrosts, the shielding device blocks the air flowing through an evaporator chamber and an air supply duct of a fan cover, so that the problem that the temperature of the chamber is greatly increased due to the fact that the hot air circulates towards the chamber in the defrosting process is blocked is solved. However, in this way, because the fan part is the part for exchanging cold and hot air, the fan blades have the phenomenon of frosting in the normal refrigeration process. The implementation mode directly arranges the shielding device on the fan to block wind circulation during defrosting, frosting at the fan is difficult to remove by hot air during defrosting, and the overall reliability has certain influence.
Therefore, a refrigerator air duct is needed to be researched to reduce the influence of hot air flow on the temperature of the compartment when the evaporator is defrosted, and improve the operation reliability of the fan.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a refrigerator air duct, through in the evaporator defrosting process, the control motor drives two transmission rods to rotate, and then realizes that two baffles rotate, realizes that the air inlet arc-shaped opening is not communicated with the air outlet, prevents the hot air flow that the defrosting produced from entering the compartment, and the temperature in the compartment is influenced; the normal supply of the cold energy in the compartment is ensured through the communication between the air inlet arc-shaped opening and the air outlet; the problems that the existing evaporator defrosting easily influences the room temperature, so that the preservation effect is reduced and the running reliability of the fan is reduced are solved.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme:
the utility model relates to a refrigerator air duct, which comprises a refrigerator body, wherein the refrigerator body comprises at least one chamber and at least one evaporator chamber arranged in the chamber; a fan and an evaporator are respectively arranged in the evaporator chamber; a freezing fan cover is fixedly arranged between the compartment and the evaporator chamber, and a plurality of cold air ports are formed in the side surface of the freezing fan cover; a refrigerating air channel communicated with the evaporator chamber is formed between the freezing air cover and the evaporator, and an air return channel communicated with the evaporator chamber is formed between the freezing air cover and the compartment;
a rotary air door mechanism is fixedly arranged in the refrigerating air duct;
the rotary air door mechanism comprises a lower sector plate and an upper sector plate arranged on the lower sector plate; the side surfaces of the lower sector plate and the upper sector plate are respectively fixedly connected with the inner wall of one opposite side surface of the refrigeration air duct;
an arc-shaped plate is fixed in the middle of the arc-shaped edge of the lower fan-shaped plate; a first enclosing plate is fixed on the edge of a central angle of the lower fan-shaped plate;
a second enclosing plate matched with the first enclosing plate is fixed on the edge of the central angle of the upper fan-shaped plate;
a group of air inlet arc-shaped openings and a group of air outlets are formed among the lower fan-shaped plate, the upper fan-shaped plate, the arc-shaped plate, the first enclosing plate and the second enclosing plate;
two transmission rods are rotatably connected between the central angle of the lower sector plate and the central angle of the upper sector plate;
the two transmission rods are in meshing transmission through a pair of gears; and a baffle is respectively fixed on the two transmission rods;
and the end part of the transmission rod is fixedly connected with an output shaft of a motor, and the motor is fixedly arranged on the side surface of the lower sector plate.
Furthermore, two guide rods are fixed at the position of the center of a circle of the upper sector plate and are positioned in the second enclosing plate;
and a guide pillar is fixed at the center angle of the lower fan-shaped plate and is positioned in the first enclosing plate, and a blind hole matched with the guide rod is formed in the end surface of the guide pillar.
Further, the baffle comprises a strip-shaped plate and a fixing ring; the side of bar shaped plate is fixed with a solid fixed ring, gu fixed ring and transfer line fixed connection.
Furthermore, two ends of the arc-shaped edge of the lower fan-shaped plate are respectively fixed with a clamping plate, and a bayonet is arranged on the clamping plate;
the two ends of the arc edge of the upper fan-shaped plate are respectively fixed with an L-shaped clamping and connecting plate; the L-shaped clamping plate is in clamping fit with the bayonet.
Furthermore, the end part of the baffle forms a limiting blocking fit with the side edge of the first enclosing plate and the side face of the end part of the first enclosing plate respectively.
Furthermore, two sleeves are fixed at the position of the center of a circle of the upper sector plate, and the sleeves are rotatably connected with the end part of the transmission rod.
The utility model discloses following beneficial effect has:
1. the utility model controls the motor to drive the two transmission rods to rotate in the defrosting process of the evaporator, so as to realize the rotation of the two baffles and realize that the air inlet arc-shaped opening is not communicated with the air outlet, thereby preventing hot air generated by defrosting from entering the compartment and influencing the temperature in the compartment; the normal supply of the cold energy in the compartment is ensured through the communication between the air inlet arc-shaped opening and the air outlet; the process effectively reduces the average fluctuation of the indoor temperature, avoids the frosting of the fan, and improves the running reliability of the fan and the taste of food.
2. The utility model discloses a motor drives a transfer line and rotates to the meshing through two gears drives the rotation of another transfer line, thereby realizes that two baffles rotate simultaneously, and makes two baffle tip be close to each other or keep away from, improves the synchronism that two air outlets shutoff or opened, guarantees the thermal effect of rotatory air door mechanism separation and the reliability of operation.
3. The utility model discloses a joint cooperation and blind hole and the guide arm cooperation of bayonet socket on L type joint board and the cardboard are strengthened the joint strength and first bounding wall and the second bounding wall complex leakproofness of sector plate and lower sector plate, have improved rotatory air door mechanism's security and leakproofness.
Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a prior art position of a shielding device;
fig. 2 is a schematic position diagram of the rotary damper mechanism of the present invention;
fig. 3 is a schematic view of the installation of the rotary air door mechanism in the cooling air duct of the present invention;
fig. 4 is a schematic structural view of the rotary damper mechanism of the present invention;
fig. 5 is a schematic view of the opening of two baffles according to the present invention;
fig. 6 is a schematic view of the gathering of the two baffles of the present invention;
FIG. 7 is a structural schematic of an upper sector plate of the present invention;
fig. 8 is a structural schematic of the transmission rod of the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1-refrigerator body, 2-compartment, 3-evaporator chamber, 4-freezing fan cover, 5-rotary air door mechanism, 6-lower fan-shaped plate, 7-upper fan-shaped plate, 8-transmission rod, 9-baffle, 10-motor, 11-shielding device, 201-refrigeration air channel, 202-return air channel, 301-fan, 302-evaporator, 401-cold air inlet, 501-air inlet arc-shaped opening, 502-air outlet, 601-arc-shaped plate, 602-first enclosing plate, 603-guide column, 604-clamping plate, 701-second enclosing plate, 702-guide rod, 703-L-type clamping plate, 801-gear, 901-strip-shaped plate, 902-fixing ring, 6031-blind hole and 6041-clamping opening.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "inner wall", "open", "bottom", "top", "side", "length", "end", "peripheral side", and the like, indicate positional or positional relationships for convenience of description, and to simplify the description, but do not indicate or imply that the referenced assembly or component must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Example one
As shown in fig. 1-2, the present invention relates to a refrigerator air duct, which comprises a refrigerator body 1, wherein the refrigerator body 1 comprises at least one compartment 2 and at least one evaporator chamber 3 arranged in the compartment 2; a fan 301 and an evaporator 302 are respectively arranged in the evaporator chamber 3; a freezing fan housing 4 is fixedly arranged between the compartment 2 and the evaporator chamber 3, and a plurality of cold air ports 401 are formed in the side surface of the freezing fan housing 4; a refrigerating air duct 201 communicated with the evaporator chamber 3 is formed between the freezing air cover 4 and the evaporator 302, and an air return duct 202 communicated with the evaporator chamber 3 is formed between the freezing air cover 4 and the compartment 2;
as shown in fig. 1, in the prior art, a shielding device 11 is installed at a fan 301, and when an evaporator 302 defrosts, the shielding device 11 blocks air circulating in an evaporator chamber 3 from a fan cover air supply duct, so that the problem that the temperature of the chamber rises more due to wind circulation of hot air to the chamber in the defrosting process; however, because the fan 301 is a part for exchanging cold and hot air, the fan blades of the fan 301 frost during normal refrigeration, which reduces the reliability of the operation of the fan 301;
as shown in fig. 2-3, the present invention is provided with a rotary air door mechanism 5 fixedly installed in the cooling air duct 201;
as shown in fig. 4 to 8, the rotary damper mechanism 5 includes a lower sector plate 6 and an upper sector plate 7 mounted on the lower sector plate 6; the fan-shaped edges of the rotary air door mechanism 5 are just positioned at the two side edges of the refrigeration air duct 201, that is, only the rotary air door mechanism 5 acts, and cold or heat can pass through the rotary air door mechanism 5; the side surfaces of the lower sector plate 6 and the upper sector plate 7 are respectively fixedly connected with the inner wall of one opposite side surface of the refrigeration air duct 201, and the lower sector plate 6 and the upper sector plate 7 can be adhered to the inner wall of the refrigeration air duct 201 through a polyurethane foam layer; or the lower sector plate 6 and the upper sector plate 7 are fixed by welding;
an arc plate 601 is fixed at the middle part of the arc edge of the lower fan-shaped plate 6, when the end parts of the two baffle plates 9 are close to each other, the two ends of the arc plate 601 form limit stop matching with the two baffle plates 9, and a fan-shaped area is formed between the two baffle plates 9 and the arc plate 601; a first enclosing plate 602 is fixed at the edge of the central angle of the lower sector plate 6;
a second enclosing plate 701 matched with the first enclosing plate 602 is fixed at the edge of the central angle of the upper sector plate 7;
a group of air inlet arc-shaped openings 501 and a group of air outlets 502 are formed among the lower fan-shaped plate 6, the upper fan-shaped plate 7, the arc-shaped plate 601, the first enclosing plate 602 and the second enclosing plate 701; when the first enclosing plate 602 on the lower sector plate 6 is abutted and matched with the second enclosing plate 701 on the upper sector plate 7, the center of a circle angle of the lower sector plate 6 and the center of a circle angle of the upper sector plate 7 can be blocked, so that only two air inlet arc-shaped openings 501 and two air outlets 502 of the whole rotary air door mechanism 5 are communicated with the outside, and no other air inlet and outlet are formed;
two transmission rods 8 are rotatably connected between the central angle of the lower sector plate 6 and the central angle of the upper sector plate 7;
the two transmission rods 8 are in meshing transmission through a pair of gears 801, the top ends of the two transmission rods 8 are respectively fixed with a gear 801, and the two gears 801 are meshed with each other; and a baffle 9 is respectively fixed on the two transmission rods 8;
the end of a transmission rod 8 is fixedly connected with an output shaft of a motor 10, and the motor 10 is fixedly arranged on the side surface of the lower sector plate 6.
Wherein, two guide rods 702 are fixed at the center angle of the upper sector plate 7, and the guide rods 702 are positioned in the second enclosing plate 701; the lower sector plate 6 and the upper sector plate 7 respectively comprise a connecting plate, two annular plates and two side plates, the two ends of the connecting plate are respectively connected with the connecting plate, the end parts of the annular plates are connected with the side plates, the side surfaces of the side plates and the baffle plates 9 form limiting and blocking matching, and when the two baffle plates 9 are far away from each other, the baffle plates 9 are prevented from separating from the upper sector plate 7 or the lower sector plate 6 due to overlarge rotation amplitude, so that cold or heat flows;
a guide post 603 is fixed at the center of the circle of the lower sector plate 6, the guide post 603 is located in the first enclosing plate 602, the central axis of the guide post 603 coincides with the central axis of the annular plate, and a blind hole 6031 matched with the guide rod 702 is formed in the end face of the guide post 603.
The baffle 9 comprises a strip-shaped plate 901 and a fixing ring 902; a fixing ring 902 is fixed on the side surface of the strip-shaped plate 901, the fixing ring 902 is fixedly connected with the transmission rod 8, and a gap is formed in the strip-shaped plate 901 to provide a space for the rotation of the gear 801.
Wherein, two ends of the arc edge of the lower sector plate 6 are respectively fixed with a clamping plate 604, and the clamping plate 604 is provided with a bayonet 6041;
the two ends of the arc edge of the upper sector plate 7 are respectively fixed with an L-shaped clamping plate 703; the L-shaped clamping plate 703 and the clamping opening 6041 form a clamping fit to enhance the connection strength between the upper sector plate 7 and the lower sector plate 6.
The end of the baffle 9 forms a limit stop fit with the side of the first enclosing plate 602 and the side of the end of the first enclosing plate 602.
Wherein, two sleeves 704 are fixed at the center angle of the upper sector plate 7, the sleeves 704 are rotatably connected with the end of the transmission rod 8, the sleeves 704 provide a rotating basis for the rotation of the transmission rod 8, the transmission rod 8 can form a rotating fit with the sleeves 704 through a bearing, and the end of the transmission rod 8 can also form a clearance fit with the sleeves 704.
In the defrosting process, the motor 10 drives the transmission rod 8 to rotate, under the meshing transmission of the two gears 801, the two transmission rods 8 synchronously rotate and drive the two baffles 9 to simultaneously rotate, so that the ends of the two baffles 9 are far away from each other, finally, the baffles 9 rotate to the side edges of the upper sector-shaped plate 7 or the lower sector-shaped plate 6 and form limiting and blocking cooperation with the side surfaces of the side plates of the second coaming 701 or the first coaming 602, at the moment, the baffles 9 block the air outlet 502 of the rotary air door mechanism 5, the air inlet arc-shaped opening 501 is not communicated with the air outlet 502, and cold energy cannot pass through the rotary air door mechanism 5;
when defrosting is finished and the compartment 2 is normally cooled, under the driving of the motor 10, the two transmission rods 8 synchronously drive the end parts of the two baffles 9 to approach each other, and the end parts of the two baffles 9 are respectively in limit blocking fit with the two ends of the arc plate 601, at this time, the air outlet 502 of the rotary air door mechanism 5 is not blocked by the baffles 9, the air inlet arc opening 501 is communicated with the air outlet 502, and cold energy can cool the compartment 2 through the rotary air door mechanism 5;
the rotary damper mechanism 5 is far away from the fan 301, so that the frosting phenomenon of the fan 301 can be avoided, and the operation reliability of the fan 301 is improved.
Example two
A control method of an air duct of a refrigerator comprises the following steps:
s001, judging whether the refrigerator meets a defrosting condition, and if the refrigerator meets the defrosting condition, executing the step S002;
s002, before defrosting, the compressor stops running, the fan 301 and the refrigeration air door are opened, the motor 10 is started, and the air inlet arc-shaped opening 501 is not communicated with the air outlet 502; the cold air on the evaporator 302 enters the refrigerating chamber through a refrigerating air door, and after running for N1min, the step S003 is executed;
s003, starting defrosting: the compressor keeps on closing state, the fan 301 and the refrigerating air door are closed, the air inlet arc-shaped opening 501 and the air outlet 502 keep on not communicating state, namely the rotary air door mechanism 5 seals the refrigerating air channel 201 to prevent the heat in the evaporator chamber 3 from entering the compartment 2, the defrosting heater is connected, and the defrosting hot air flow circulates in the evaporator chamber 3; detecting whether the temperature Tz of the defrosting temperature sensor is greater than a set defrosting stop temperature Tzmax, and if so, executing a step S004;
s004, after defrosting is finished, the defrosting heater is switched off, the compressor, the fan 301 and the refrigeration air door are kept closed continuously, the air inlet arc-shaped opening 501 and the air outlet 502 are kept in a non-communicated state continuously, and after N2min, the step S005 is executed;
s005, starting a compressor, cooling an evaporator chamber after running for N3min, and executing the step S006;
s006, the compressor is continuously started, the fan 301 and the refrigeration air door are started, cold air circularly runs in the refrigeration chamber and the evaporator chamber 3, the temperature Tz of the defrosting temperature sensor and the temperature Ts of the freezing chamber temperature sensor are detected, the difference value delta T is (Ts-Tz), whether the delta T is larger than or equal to M1 ℃ is judged, and if yes, the refrigeration air door is closed and the running is continuously carried out; judging whether the delta T is greater than or equal to M2 ℃, if so, finishing defrosting control, entering a normal refrigeration state, and keeping the air inlet arc-shaped opening 501 and the air outlet 502 in a communicated state, namely, the refrigeration air duct 201 is not blocked by the rotary air door mechanism 5; s006 uses a relatively high air temperature to refrigerate the refrigerating chamber and a second lowest air temperature to refrigerate the uppermost air opening of the freezing chamber.
Wherein Δ T and M2 > M1 ℃.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (6)
1. A refrigerator air duct comprises a refrigerator body (1), wherein the refrigerator body (1) comprises at least one compartment (2) and at least one evaporator chamber (3) arranged in the compartment (2); a fan (301) and an evaporator (302) are respectively arranged in the evaporator chamber (3); a freezing fan cover (4) is fixedly arranged between the compartment (2) and the evaporator chamber (3), and a plurality of cold air ports (401) are formed in the side surface of the freezing fan cover (4); a refrigerating air channel (201) communicated with the evaporator chamber (3) is formed between the freezing air cover (4) and the evaporator (302), and an air return channel (202) communicated with the evaporator chamber (3) is formed between the freezing air cover (4) and the compartment (2); the method is characterized in that:
a rotary air door mechanism (5) is fixedly arranged in the refrigerating air duct (201);
the rotary air door mechanism (5) comprises a lower fan-shaped plate (6) and an upper fan-shaped plate (7) arranged on the lower fan-shaped plate (6); the side surfaces of the lower sector plate (6) and the upper sector plate (7) are respectively fixedly connected with the inner wall of one opposite side surface of the refrigeration air duct (201);
an arc-shaped plate (601) is fixed in the middle of the arc-shaped edge of the lower fan-shaped plate (6); a first enclosing plate (602) is fixed at the edge of the central angle of the lower fan-shaped plate (6);
a second enclosing plate (701) matched with the first enclosing plate (602) is fixed at the edge of the central angle of the upper fan-shaped plate (7);
a group of air inlet arc-shaped openings (501) and a group of air outlets (502) are formed among the lower fan-shaped plate (6), the upper fan-shaped plate (7), the arc-shaped plate (601), the first enclosing plate (602) and the second enclosing plate (701);
two transmission rods (8) are rotatably connected between the central angle of the lower sector plate (6) and the central angle of the upper sector plate (7);
the two transmission rods (8) are in meshing transmission through a pair of gears (801); and a baffle (9) is respectively fixed on the two transmission rods (8);
the end part of the transmission rod (8) is fixedly connected with an output shaft of a motor (10), and the motor (10) is fixedly arranged on the side surface of the lower sector plate (6).
2. The air duct of the refrigerator as claimed in claim 1, wherein two guide rods (702) are fixed at the center corners of the upper sector plate (7), and the guide rods (702) are located in the second enclosing plate (701);
a guide post (603) is fixed at the position of the circle center of the lower fan-shaped plate (6), the guide post (603) is located in the first enclosing plate (602), and a blind hole (6031) matched with the guide rod (702) is formed in the end face of the guide post (603).
3. The refrigerator air duct according to claim 1, wherein the baffle (9) comprises a strip-shaped plate (901) and a fixing ring (902); a fixing ring (902) is fixed on the side face of the strip-shaped plate (901), and the fixing ring (902) is fixedly connected with the transmission rod (8).
4. The air duct of the refrigerator as claimed in claim 1, wherein a clamping plate (604) is fixed at each end of the arc-shaped edge of the lower fan-shaped plate (6), and a bayonet (6041) is arranged on the clamping plate (604);
the two ends of the arc edge of the upper sector plate (7) are respectively fixed with an L-shaped clamping plate (703); the L-shaped clamping plate (703) is in clamping fit with the bayonet (6041).
5. The refrigerator air duct according to claim 1, wherein the end of the baffle (9) forms a limit stop fit with the side of the first enclosing plate (602) and the side of the end of the first enclosing plate (602), respectively.
6. The air duct of the refrigerator as claimed in claim 1, wherein two sleeves (704) are fixed at the center corners of the upper sector plate (7), and the sleeves (704) are rotatably connected with the ends of the transmission rods (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921560217.2U CN210569471U (en) | 2019-09-19 | 2019-09-19 | Refrigerator air duct |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921560217.2U CN210569471U (en) | 2019-09-19 | 2019-09-19 | Refrigerator air duct |
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| CN210569471U true CN210569471U (en) | 2020-05-19 |
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| CN201921560217.2U Active CN210569471U (en) | 2019-09-19 | 2019-09-19 | Refrigerator air duct |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455034A (en) * | 2019-09-19 | 2019-11-15 | 长虹美菱股份有限公司 | A kind of refrigerator air duct and control method |
| CN113932540A (en) * | 2020-07-13 | 2022-01-14 | 海信（山东）冰箱有限公司 | A kind of refrigerator |
-
2019
- 2019-09-19 CN CN201921560217.2U patent/CN210569471U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455034A (en) * | 2019-09-19 | 2019-11-15 | 长虹美菱股份有限公司 | A kind of refrigerator air duct and control method |
| CN110455034B (en) * | 2019-09-19 | 2024-09-27 | 长虹美菱股份有限公司 | Refrigerator air duct and control method |
| CN113932540A (en) * | 2020-07-13 | 2022-01-14 | 海信（山东）冰箱有限公司 | A kind of refrigerator |
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