Refrigerating air duct structure of refrigerator

Abstract

The utility model discloses a refrigerator cold storage air duct structure which comprises a refrigerator body, four cold storage air duct openings are formed in a cold storage chamber of the refrigerator body, and cleaning mechanisms for cleaning frost are arranged in the four cold storage air duct openings. According to the refrigeration air duct structure of the refrigerator, the movable plate and the guide plate are arranged, the air duct opening can be prevented from being abraded, meanwhile, frost is brought out of the air duct opening, during use, the driving mechanism is started to drive the screw to rotate, and then the movable frame can drive the scraper frame to scrape off the frost in the refrigeration air duct opening; frost on the top face and the bottom face of the refrigeration air duct opening falls to the top face of the guide plate and slides to the rear side of the movable frame after being scraped off, the frost on the bottom face of the refrigeration air duct opening is collected to the rear side of the movable frame along the inclined face of the scraper frame, and at the moment, the driving mechanism is controlled to rotate reversely so that the movable frame can drive the collecting plate to take the scraped frost out of the refrigeration air duct opening. The refrigerating effect of the refrigerator is prevented from being affected by abrasion of the air duct, and frost is convenient to clean.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigerators, in particular to a refrigerator refrigeration air duct structure. Background Art

[0002] A refrigerator is a refrigeration device that maintains a constant low temperature. It is also a civilian product that keeps food or other items at a constant low temperature. The low-temperature air circulates inside the refrigerator through a fan and air duct system, which easily causes frost at the air duct opening.

[0003] Chinese patent CN214746698U discloses an air duct structure of a refrigerator refrigerator compartment, comprising a refrigerator body, and a refrigerator compartment arranged on the refrigerator body, an air duct opening is opened inside the refrigerator compartment, a defrosting mechanism is arranged inside the air duct opening, the defrosting mechanism comprises a fixed rod and a forward and reverse motor, the fixed rod is mounted on the top of the inner wall of the refrigerator body, a bearing is mounted on the bottom end of the fixed rod, a screw rod is sleeved on the inner ring of the bearing, a first bevel gear is mounted on one end of the screw rod, the forward and reverse motor is mounted inside the refrigerator body, the forward and reverse motor is connected to the second bevel gear through a rotating shaft, and the forward and reverse motor and the heater are arranged to scrape off the frost on the inner wall of the air duct opening, saving time and effort, and turning on the forward and reverse motor control switch while turning on the heater control switch, the heater heats the strip heat conductive sheet and the circular heat conductive sheet, and the circular heat conductive sheet transfers heat to the screw rod, thereby preventing frost blockage.

[0004] Based on the above-mentioned prior art, the current refrigerator refrigeration air duct structure still has the following problems: the mechanism limits the walking plate through the air duct opening to enable it to move horizontally, which is easy to wear the air duct opening and affect the refrigeration effect of the refrigerator, and the defrost mechanism only scrapes off the frost inside the air duct opening, and cannot take it out of the outside of the air duct opening. Manual tools are still needed for cleaning, and the practicality is average. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a refrigerator refrigeration duct structure, which solves the problem that the existing refrigerator refrigeration duct structure easily wears the duct opening in a lateral movement manner, affects the refrigeration effect of the refrigerator, and cannot bring frost out of the outside of the duct opening, and has general practicality.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions: a refrigerator refrigeration duct structure, including a refrigerator body, four refrigeration duct openings are opened inside the refrigerator compartment of the refrigerator body, and cleaning mechanisms for cleaning frost are arranged inside the four refrigeration duct openings, and driving mechanisms for providing kinetic energy for the cleaning mechanisms are arranged outside the four refrigeration duct openings, and the cleaning mechanism includes a fixed frame fixedly installed on the inner sides of the four refrigeration duct openings, a movable plate is slidably installed on the inner side of the fixed frame, a screw is movably installed inside the fixed frame, movable frames are fixedly installed on both sides of the movable plate, a scraper frame is fixedly installed on the side of the movable frame away from the driving mechanism, a guide plate is fixedly installed on the inner side of the movable frame, a baffle is fixedly installed on one end of the guide plate away from the driving mechanism, a plurality of ventilation slots are opened on the outer side of the baffle, a side plate is fixedly installed on the side of the guide plate away from the screw, a worm gear is fixedly installed on one end of the screw close to the driving mechanism, and a collecting plate is fixedly installed on the bottom surface of the rear side of the movable frame.

[0007] Preferably, the end of the screw away from the driving mechanism threadedly penetrates the rear side of the movable plate and is movably mounted on the front end inside the fixed frame, and the end of the screw close to the driving mechanism movably penetrates the inner side of the screw and is fixedly mounted on one end of the worm gear.

[0008] Preferably, the outer side of the scraper frame is in close contact with the inner side of the four refrigeration air duct openings.

[0009] Preferably, the driving mechanism comprises a plurality of support blocks fixedly mounted on the rear side of the refrigerator body refrigerator compartment, four forward and reverse motors are fixedly mounted on the rear side of the refrigerator body refrigerator compartment, and worm gears are movably mounted on opposite sides of the plurality of support blocks.

[0010] Preferably, the top end of the worm movably passes through the opposite side of the support block and is fixedly mounted on the output ends of the four forward and reverse motors.

[0011] Preferably, the outer side of the worm wheel meshes with the outer side of the worm.

[0012] Beneficial Effects

[0013] The utility model provides a refrigerator refrigeration air duct structure. Compared with the prior art, it has the following beneficial effects:

[0014] (1) The refrigerator refrigeration air duct structure can avoid the wear of the air duct opening and bring the cleaned frost out of the air duct opening by setting a movable plate and a guide plate. When in use, the driving mechanism is started to drive the screw to rotate, and then the movable plate will drive the movable frame to make the scraper frame scrape off the frost inside the refrigeration air duct opening. After the frost on the top and bottom surfaces of the refrigeration air duct opening is scraped off, it will fall to the top surface of the guide plate and slide to the rear side of the movable frame. The frost on the bottom surface of the refrigeration air duct opening will slowly gather to the rear side of the movable frame along the inclined surface of the scraper frame. At this time, the driving mechanism is controlled to reverse through the screw to make the movable frame drive the collecting plate to bring the scraped frost out of the interior of the refrigeration air duct opening, thereby avoiding the wear of the air duct affecting the refrigeration effect of the refrigerator and facilitating the cleaning of the frost.

[0015] (2) The refrigerator refrigeration air duct structure can provide a cleaning mechanism with power to clean frost by means of a forward and reverse motor. The cleaning mechanism can clean the frost inside the refrigeration air duct opening by starting the forward and reverse motor to drive the worm. The practicability is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a rear-view cross-sectional three-dimensional appearance schematic diagram of the utility model;

[0017] Figure 2 For the utility model Figure 1 The enlarged appearance diagram at A in the middle;

[0018] Figure 3 This is a schematic diagram of the three-dimensional appearance of the cleaning mechanism of the utility model from a side view;

[0019] Figure 4 It is a rear perspective schematic diagram of the cleaning mechanism of the utility model.

[0020] In the figure: 1-refrigerator, 2-refrigeration air duct outlet, 3-driving mechanism, 31-forward and reverse motor, 32-support block, 33-worm, 4-cleaning mechanism, 41-fixed frame, 42-worm gear, 43-movable plate, 44-movable frame, 45-guide plate, 46-baffle, 47-scraper frame, 48-ventilation slot, 49-side plate, 410-screw, 411-collecting plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model provides two technical solutions:

[0023] Figure 1-Figure 4 The first embodiment is shown: a refrigerator refrigeration duct structure, including a refrigerator body 1, the refrigerator body 1 has four refrigeration duct openings 2 in the refrigeration chamber, the four refrigeration duct openings 2 are each provided with a cleaning mechanism 4 for cleaning frost, the four refrigeration duct openings 2 are each provided with a driving mechanism 3 for providing kinetic energy for the cleaning mechanism 4, the cleaning mechanism 4 includes a fixed frame 41 fixedly installed on the inner side of the four refrigeration duct openings 2, a movable plate 43 is slidably installed on the inner side of the fixed frame 41, and the movable plate 43 is H-shaped, and the movable plate 43 is moved by The fixed frame 41 can make the movable frame 44 move forward and backward. The fixed frame 41 is movably installed with a screw 410 inside. The movable frame 44 is fixedly installed on both sides of the movable plate 43. The side of the movable frame 44 away from the driving mechanism 3 is fixedly installed with a scraper frame 47, and the inner side of the scraper frame 47 is inclined. The inner side of the movable frame 44 is fixedly installed with a guide plate 45, and the guide plate 45 is installed at an angle on the inner side of the movable plate 43 to collect frost scraped off the top surface of the refrigeration air duct opening 2. The end of the guide plate 45 away from the driving mechanism 3 is fixedly installed with The baffle plate 46 has a plurality of ventilation slots 48 formed on the outside of the baffle plate 46, and the plurality of ventilation slots 48 are linearly and evenly distributed on the outside of the baffle plate 46, so as not to affect the normal ventilation of the refrigerated air duct opening 2. A side plate 49 is fixedly installed on the side of the guide plate 45 away from the screw 410, and one side of the side plate 49 is closely attached to the inner side of the refrigerated air duct opening 2. A worm gear 42 is fixedly installed on the end of the screw 410 close to the driving mechanism 3. A collecting plate 411 is fixedly installed on the bottom surface of the rear side of the movable frame 44. The end of the screw 410 away from the driving mechanism 3 is threadedly penetrated through the movable plate. The rear side of 43 is movably installed at the front end of the inner side of the fixed frame 41, and one end of the screw 410 close to the driving mechanism 3 movably passes through the inner side of the screw 410 and is fixedly installed at one end of the worm gear 42, and the rotation of the screw 410 can drive the movable plate 43 to make the movable frame 44 move back and forth to clean the frost, the outer side of the scraper frame 47 is tightly attached to the inner side of the four refrigeration air duct openings 2, the outer side of the worm gear 42 is engaged with the outer side of the worm 33, and starting the driving mechanism 3 can drive the screw 410 to rotate through the worm gear 42 to move the movable frame 44 back and forth.

[0024] The movable plate 43 and the guide plate 45 are provided to avoid the wear of the air duct opening and bring the cleaned frost out of the air duct opening. When in use, the driving mechanism 3 is started to drive the screw 410 to rotate, and then the movable plate 43 will drive the movable frame 44 to make the scraper frame 47 scrape the frost inside the refrigerated air duct opening 2. The frost on the top and bottom surfaces of the refrigerated air duct opening 2 will fall to the top surface of the guide plate 45 and slide to the rear side of the movable frame 44 after being scraped off. The frost on the bottom surface of the refrigerated air duct opening 2 will slowly gather to the rear side of the movable frame 44 along the inclined surface of the scraper frame 47. At this time, the driving mechanism 3 is controlled to reverse through the screw 410 to make the movable frame 44 drive the collecting plate 411 to bring the scraped frost out of the interior of the refrigerated air duct opening 2, so as to avoid the wear of the air duct affecting the refrigeration effect of the refrigerator and facilitate the cleaning of the frost.

[0025] Figure 1-Figure 3 A second embodiment is shown, which mainly differs from the first embodiment in that the driving mechanism 3 includes a plurality of support blocks 32 fixedly mounted on the rear side of the refrigerator body 1 refrigerator compartment, four forward and reverse motors 31 are fixedly mounted on the rear side of the refrigerator body 1 refrigerator compartment, worm gears 33 are movably mounted on the opposite sides of the plurality of support blocks 32, and the worm gears 33 are limited by the plurality of support blocks 32, the top end of the worm gear 33 movably passes through the opposite sides of the support blocks 32 and is fixedly mounted on the output ends of the four forward and reverse motors 31, and the four forward and reverse motors 31 are started to drive the worm gear 33 to rotate so that the cleaning mechanism 4 cleans the frost.

[0026] The forward and reverse motor 31 can provide power for the cleaning mechanism 4 to clean the frost. The cleaning mechanism 4 can clean the frost inside the refrigeration air duct 2 by starting the forward and reverse motor 31 to drive the worm 33, which is very practical.

[0027] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used.

[0028] When frost needs to be cleaned, the user starts the forward and reverse motor 31 to drive the worm 33 to rotate the screw 410 through the worm gear 42. At the same time, the screw 410 drives the movable frame 44 through the movable plate 43 to cause the scraper frame 47 to scrape the frost inside the refrigerated air duct opening 2. After the frost on the top and bottom surfaces is scraped off, it will fall to the top surface of the guide plate 45 and slide to the rear side of the movable frame 44. The frost on the bottom surface of the refrigerated air duct opening 2 will slowly gather to the rear side of the movable frame 44 along the inclined surface of the scraper frame 47, and then the driving mechanism 3 is controlled to drive the screw 410 to reverse, so that the movable frame 44 drives the collecting plate 411 to bring the scraped frost out of the interior of the refrigerated air duct opening 2.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include"-"comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process-method-article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process-method-article or device.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A refrigerator refrigeration air duct structure, comprising a refrigerator body (1), characterized in that: Four refrigeration air duct openings (2) are provided inside the refrigeration chamber of the refrigerator body (1); a cleaning mechanism (4) for cleaning frost is provided inside each of the four refrigeration air duct openings (2); and a driving mechanism (3) for providing kinetic energy to the cleaning mechanism (4) is provided outside each of the four refrigeration air duct openings (2); The cleaning mechanism (4) comprises a fixed frame (41) fixedly mounted on the inner side of four refrigeration air duct openings (2); a movable plate (43) is slidably mounted on the inner side of the fixed frame (41); a screw (410) is movably mounted inside the fixed frame (41); movable frames (44) are fixedly mounted on both sides of the movable plate (43); a scraper frame (47) is fixedly mounted on the side of the movable frame (44) away from the driving mechanism (3); and a scraper frame (47) is fixedly mounted on the inner side of the movable frame (44). A guide plate (45) is installed, a baffle (46) is fixedly installed on one end of the guide plate (45) away from the driving mechanism (3), a plurality of ventilation slots (48) are provided on the outer side of the baffle (46), a side plate (49) is fixedly installed on the side of the guide plate (45) away from the screw rod (410), a worm gear (42) is fixedly installed on one end of the screw rod (410) close to the driving mechanism (3), and a collecting plate (411) is fixedly installed on the bottom surface of the rear side of the movable frame (44).

2. A refrigerator refrigeration air duct structure according to claim 1, characterized in that: One end of the screw rod (410) away from the driving mechanism (3) is threadedly penetrated through the rear side of the movable plate (43) and is movably mounted on the front end of the inner side of the fixed frame (41), and one end of the screw rod (410) close to the driving mechanism (3) is movably penetrated through the inner side of the screw rod (410) and is fixedly mounted on one end of the worm gear (42).

3. The refrigerator refrigeration air duct structure according to claim 1, characterized in that: The outer side of the scraper frame (47) is in close contact with the inner side of the four refrigeration air duct openings (2).

4. The refrigerator refrigeration air duct structure according to claim 1, characterized in that: The driving mechanism (3) comprises a plurality of support blocks (32) fixedly mounted on the rear side of the refrigerator compartment of the refrigerator body (1), four forward and reverse motors (31) fixedly mounted on the rear side of the refrigerator compartment of the refrigerator body (1), and worm gears (33) movably mounted on opposite sides of the plurality of support blocks (32).

5. A refrigerator refrigeration air duct structure according to claim 4, characterized in that: The top end of the worm (33) movably penetrates the opposite side of the support block (32) and is fixedly mounted on the output ends of the four forward and reverse motors (31).

6. The refrigerator refrigeration air duct structure according to claim 1, characterized in that: The outer side of the worm wheel (42) meshes with the outer side of the worm (33).

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