CN217929346U - Fresh air refrigerator based on dustproof device - Google Patents

Abstract

The utility model discloses a new trend refrigerator based on dust keeper belongs to the refrigeration plant field. The device includes walk-in and freezer, has a cold-stored air intake and a cold-stored return air inlet at least between walk-in and the freezer to form a return flow channel, its characterized in that still includes: the fresh air module at least comprises a first fresh air opening communicated to the outside of the refrigerator and a second fresh air opening communicated to the refrigerating chamber of the refrigerator; and the dustproof device is arranged at the first fresh air opening. The utility model discloses a high temperature and high humidity air meets cold condensation after getting into the fresh air pipeline, and gas compression, outside air constantly supplyes to make outside fresh air constantly introduce the refrigerator inside, the comdenstion water flows into the refrigerator inside along the fresh air pipeline simultaneously, increases wet, realizes getting water in the air and humidifying, the process need not to be switched on, improves the fresh-keeping effect of walk-in; through setting up dust keeper, improve the dustproof effect of refrigerator.

Description

Fresh air refrigerator based on dustproof device

Technical Field

The utility model relates to a refrigerating plant field, in particular to new trend refrigerator based on dust keeper.

Background

The fresh-keeping of the refrigerator is realized by means of low temperature, moisture preservation and the like. The low temperature can inhibit the growth of bacteria, and the moisture preservation can ensure that the water loss rate of the fruits and vegetables is reduced and the fruits and vegetables can be kept fresh for a long time.

Because the inside of the refrigerator is a closed space, various alcohol substances emitted by food materials and harmful gas generated by respiration are easy to deposit. In addition, bacterial growth also produces off-flavors. These factors are accumulated together, so that mutual pollution and smell channeling phenomena occur between refrigerator compartments and between food materials. After the refrigerator is used for a long time, obvious peculiar smell can be generated in the refrigerator. The mainstream preservation technology in the industry is currently focused on temperature control precision, humidity control, electromagnetic field preservation and the like. For the peculiar smell and harmful gas in the refrigerator, measures such as activated carbon filtration, photocatalyst, sealing and the like are generally adopted for processing, so that the air quality in the refrigerator is improved.

However, accurate temperature control, humidity control, electromagnetic field preservation and the like can obviously prolong the preservation period of various foods, but the food materials still volatilize various odor molecules in the air, such as durian. The concentration of the odor molecules in the limited space of the refrigerator gradually increases, causing an offensive odor.

The traditional treatment of refrigerator peculiar smell, such as adsorption substances like active carbon, cannot adsorb peculiar smell for a long time, is easy to saturate and lose efficacy, and cannot be regenerated; and the traditional refrigerator has poor dustproof effect.

SUMMERY OF THE UTILITY MODEL

The utility model provides a new trend refrigerator based on dust keeper can solve the inside air quality of refrigerator among the prior art not good, the relatively poor problem of dustproof effect.

The utility model provides a new trend refrigerator based on dust keeper, includes walk-in and freezer, at least, have a cold-stored air intake and a cold-stored return air mouth between walk-in and the freezer to form a return flow channel, still include:

the fresh air module at least comprises a first fresh air opening communicated to the outside of the refrigerator and a second fresh air opening communicated to a refrigerating chamber of the refrigerator, the first fresh air opening is communicated to the second fresh air opening, and the first fresh air opening is higher than the second fresh air opening in the vertical direction; and the number of the first and second groups,

the dustproof device is arranged at the first fresh air opening.

Preferably, the dustproof device comprises a dustproof hole cover and a dustproof filter screen, the dustproof hole cover is detachably mounted at the first fresh air opening, an air inlet is formed in the dustproof hole cover, and the dustproof filter screen is detachably mounted in the dustproof hole cover.

Preferably, an upper top cover is arranged at one end of the dustproof hole cover, and when the dustproof hole cover is positioned at the first fresh air opening, the projection of the first fresh air opening in the vertical direction completely falls into the top cover;

the first fresh air opening is provided with a clamping groove, and the dustproof hole cover is provided with a clamping block matched with the clamping groove.

Preferably, a containing cavity is formed in the dustproof hole cover, the containing cavity is away from one side of the top cover and is communicated with the top cover, the dustproof filter screen is arranged at the bottom of the containing cavity, and a filtering material is arranged in a space surrounded by the dustproof filter screen and the containing cavity.

Preferably, the fresh air module further comprises a water collecting device, and the water collecting device is located below the second fresh air opening and used for collecting the condensed water flowing out of the second fresh air opening.

Preferably, the first fresh air opening and the second fresh air opening are communicated through a fresh air pipeline;

the fresh air module further comprises a humidification shell, the humidification shell is detachably mounted in the refrigerating chamber, and the water collecting device is located in the humidification shell; the water collecting device is provided with a first water collecting opening and a second water collecting opening, and the second fresh air opening is detachably connected to the first water collecting opening in a penetrating manner; and the humidifying air outlet hole for accommodating gas outflow is formed in the humidifying shell.

Preferably, the second fresh air opening is communicated with the first water collecting opening through an air inlet hose, and an opening of the air inlet hose in the water collecting device is lower than the first water collecting opening in the vertical direction.

Preferably, the solar water heater further comprises an elastic supporting part, wherein the elastic supporting part is fixedly arranged in the humidifying shell and used for supporting the water collecting device.

Preferably, the elastic supporting part is a supporting spring, one end of the supporting spring is fixedly arranged in the humidification shell, the other end of the supporting spring is fixedly connected with a supporting plate, and the supporting plate is used for abutting against the water collecting device to support the water collecting device.

Preferably, the refrigerating chamber further comprises a gas outlet top cover, wherein the gas outlet top cover is arranged on the humidifying shell and corresponds to the position of the humidifying gas outlet hole and is used for preventing condensation on the top of the inner wall of the refrigerating chamber.

Preferably, the air outlet top cover is provided with at least one supporting block, the humidifying shell is provided with a supporting groove corresponding to the supporting block, and when the supporting block is located in the supporting groove, a gap for accommodating air flow to pass through is formed between the air outlet top cover and the humidifying air outlet hole.

Preferably, the upper end surface of the humidifying shell is provided with a V-shaped concave surface corresponding to the position of the air outlet top cover, the concave surface is used for guiding condensed water to the humidifying air outlet hole, and the position of the humidifying air outlet hole corresponds to the position of the second water collecting opening.

Preferably, the second water collecting opening is provided with a condensation recovery funnel for guiding condensed water to flow towards the water collecting device, and the condensation recovery funnel extends to be connected to the peripheral side wall of the humidifying shell.

The utility model provides a fresh air refrigerator based on dust keeper, through high temperature and high humidity air after getting into the fresh air pipeline, meet cold condensation, gas compression, outside air constantly supplements to make outside fresh air constantly introduce the refrigerator inside, simultaneously the comdenstion water flows into the refrigerator inside along fresh air pipeline, increases wet, realizes getting water humidification in the air, the process need not to be switched on, takes a breath and increases wet to the air of walk-in, improves the fresh-keeping effect of walk-in; through setting up dust keeper, improve the dustproof effect of refrigerator.

Drawings

Fig. 1 is a first schematic structural view of a fresh air refrigerator based on a dustproof device according to the present invention;

fig. 2 is a schematic structural diagram ii of a fresh air refrigerator based on a dustproof device according to the present invention;

fig. 3 is a schematic view of a vertical structure of a fresh air refrigerator based on a dustproof device according to the present invention;

FIG. 4 is a first schematic structural diagram of the fresh air module in FIG. 3;

FIG. 5 is a second schematic structural diagram of the fresh air module shown in FIG. 3;

FIG. 6 is a third schematic structural view (hidden support structure) of the fresh air module shown in FIG. 3;

FIG. 7 is a schematic gas flow diagram of the fresh air module of FIG. 3;

FIG. 8 is an enlarged view of a portion A of FIG. 7;

fig. 9 is a schematic structural diagram four (sectional structure) of the fresh air module in fig. 3;

FIG. 10 is an enlarged view of a portion of FIG. 9 at B;

FIG. 11 is a front view of a fresh air module;

FIG. 12 is a schematic sectional view of a fresh air module;

FIG. 13 is a cross-sectional view C-C of FIG. 12;

FIG. 14 is a schematic perspective view of FIG. 13;

FIG. 15 is an enlarged view of a portion of FIG. 14 at D;

fig. 16 is a schematic structural view of a second embodiment of the opening degree adjustment mechanism;

fig. 17 is a schematic structural view of a third embodiment of the opening degree adjustment mechanism;

FIG. 18 is a first schematic view of the dust-proof device shown in FIG. 4;

FIG. 19 is a second schematic view of the dust-proof device shown in FIG. 4;

fig. 20 is a schematic view of the installation structure of the dust-proof device.

Description of reference numerals:

1, a refrigerating chamber; 1a refrigerating chamber door; 1b, refrigerating an air inlet; 1c, refrigerating an air return opening; 2, a fresh air module; 21 humidifying the shell; 21a humidifying air outlet; 22 increasing the humidity of the box door body; 23a water collection device; 23a first water collection opening; 23b second water collection opening; 24a fresh air duct; 24a first fresh air opening; 24b a second humidification opening; 25, dust hole covers; 251 an air inlet hole; 252 a fixture block; 26, a dustproof filter screen; 27 an air intake hose; 27a sealing structure I; 27b a second sealing structure; 27c a second sealing structure; 28 condensation recovery funnel; 3, freezing chamber; 3a freezer door; a 40-degree opening adjusting mechanism; 41 adjusting knob; 42 adjusting the gear; 43 adjusting the stop block; 44 a deflector rod; 45 baffle plates; 451 vent holes; 50 air outlet top cover; 501 supporting a block; 52 adjusting the slide block; 521 adjusting racks; 522 an adjustment aperture; 60 supporting the spring; the plate is supported 61.

Detailed Description

In the following, an embodiment of the present invention will be described in detail with reference to the drawings, but it should be understood that the scope of the present invention is not limited by the embodiment.

The first embodiment is as follows:

as shown in fig. 1 to 3, the embodiment of the utility model provides a fresh air refrigerator based on dust keeper, including walk-in 1 and freezer 3, walk-in 1 and freezer 3 punishment are provided with respectively and walk-in door 1a and freezer door 3a, and the condenser setting is in freezer 3, has a cold-stored air intake 1b and a cold-stored return air inlet 1c between walk-in 1 and the freezer 3 at least to form a return flow channel, the air conditioning in the freezer 3 is sent into walk-in 1 and is flowed back to in the freezer 3 through cold-stored return air inlet 1c through cold-stored air intake 1 b. In this embodiment, the method further includes:

the fresh air module 2 comprises a first fresh air opening 24a communicated to the outside of the refrigerator and a second fresh air opening 24b communicated to the refrigerating chamber 1 of the refrigerator, the first fresh air opening 24a is communicated to the second fresh air opening 24b, and the first fresh air opening 24a is higher than the second fresh air opening 24b in the vertical direction. First fresh air opening 24a and second fresh air opening 24b are all seted up on cold storage chamber door 1a, specifically, as shown in fig. 3, first fresh air opening 24a is seted up on the up end of cold storage chamber door 1a, and second fresh air opening 24b is seted up on the lateral wall of cold storage chamber door 1a towards the refrigerator inside, and it link up first fresh air opening 24a and second fresh air opening 24b to have the cavity to seted up in the foaming layer of cold storage chamber door 1a, also can communicate first fresh air opening 24a and second fresh air opening 24b through the pipeline, and the pipeline is buried in the foaming layer of cold storage chamber door 1 a.

In another scheme, the first fresh air opening 24a and the second fresh air opening 24b may also be both provided on a side wall of the refrigerator body, and the first fresh air opening 24a and the second fresh air opening 24b are communicated through a pipeline.

High temperature and high humidity air meets cold condensation after getting into the new trend pipeline, and gas volume compresses, and outside air constantly supplyes to make inside outside fresh air constantly introduces the refrigerator, thereby through introducing the new trend, purify air in the refrigerator, promote air quality in the refrigerator.

It is noted that in both embodiments, the first fresh air opening 24a is vertically higher than the second fresh air opening 24b so that the condensed water can flow into the interior of the refrigerator under gravity to humidify the refrigerator. It will be appreciated that the condensate may be a large particle mist, or a stream of water in a liquid state, or both.

As a further preferable solution, as shown in fig. 4, 18, 19 and 20, a dust hole cover 25 is provided at the position of the first fresh air opening 24a, and a dust screen 26 is provided below the dust hole cover 25 to prevent external dust from entering the fresh air duct 24. The arrangement of the dustproof filter screen 26 and the dustproof hole cover 25 can adopt the arrangement scheme commonly used in the prior art.

Specifically, as shown in fig. 18 and 19, the dustproof device includes a dustproof hole cover 25 and a dustproof filter net 26, the dustproof hole cover 25 is detachably installed at the first fresh air opening 24a, the dustproof hole cover 25 is provided with an air inlet 251, the dustproof filter net 26 is detachably connected with the dustproof hole cover 25, and the specific connection mode can be interference fit connection or snap fit connection or other general connection modes in the prior art.

One end of the dustproof hole cover 25 is provided with an upper top cover, when the dustproof hole cover 25 is positioned at the first fresh air opening 24a, the projection of the first fresh air opening 24a in the vertical direction completely falls into the top cover, so that when dust falls under the action of gravity, the top cover can completely cover the first fresh air opening 24a, and the dust is prevented from entering the first fresh air opening 24 a.

The first fresh air opening 24a is provided with a clamping groove, the dustproof hole cover 25 is provided with a clamping block 252 matched with the clamping groove, the dustproof hole cover 25 and the first fresh air opening 24a are detachably connected through the matching of the clamping block 252 and the clamping groove, and as shown in fig. 20, when the clamping block 252 is matched with the clamping groove, a certain gap is formed between the dustproof hole cover 25 and the clamping groove, so that air flow can smoothly enter the fresh air pipeline 24 through the air inlet hole 251.

Furthermore, a containing cavity is formed in the dustproof hole cover 25, one side, deviating from the top cover, of the containing cavity is communicated with the containing cavity, the dustproof filter screen 26 is arranged at the bottom of the containing cavity, and filtering materials are arranged in the space defined by the dustproof filter screen 26 and the containing cavity. The filtering material can be replaced according to actual use requirements, such as an activated carbon adsorbent, a filtering filter element in the prior art and the like.

The second embodiment:

in the first embodiment, the condensed water directly flowing into the refrigerator is easy to freeze on the side wall or the body of the refrigerating chamber door 1a, and is not easy to clean.

Therefore, on the basis of the first embodiment, in this embodiment, the fresh air module 2 further includes a water collecting device 23, and the water collecting device 23 is located below the second fresh air opening 24b and is used for collecting the condensed water flowing out of the second fresh air opening 24b.

Specifically, the first fresh air opening 24a and the second fresh air opening 24b are communicated through a fresh air pipeline 24;

as shown in fig. 4, the fresh air module 2 further includes a humidification housing 21, the humidification housing 21 is detachably installed in the refrigerating chamber 1, and the water collection device 23 is located in the humidification housing 21; wherein, the water collecting device 23 is provided with a first water collecting opening 23a and a second water collecting opening 23b, and the second fresh air opening 24b is detachably connected to the first water collecting opening 23a in a penetrating way; increase and offer on the wet casing 21 and be used for holding the gas outflow increase wet venthole 21a, the steam after the evaporation passes through second water collection opening 23b and escapes to in the walk-in 1 through increasing wet venthole 21a, increases wet to walk-in 1.

The second fresh air opening 24b is communicated with the first water collecting opening 23a through an air inlet hose 27, two ends of the air inlet hose 27 are connected to the first water collecting opening 23a and the second fresh air opening 24b through buckles or other detachable modes respectively, the connection position of the humidifying hose and the first water collecting opening 23a is in sealing connection through a sealing structure 27b27c, the connection position of the humidifying hose and the second fresh air opening 24b is in sealing connection through a sealing structure 27a, condensed water and/or water mist enters the water collecting device 23 through the fresh air pipeline 24 and the air inlet hose 27, wherein an opening of the air inlet hose 27 in the water collecting device 23 is lower than the first water collecting opening 23a in the vertical direction. When the high-humidity air enters the fresh air duct 24 and is condensed, the high-humidity air flows into the water collecting device 23 along the air inlet hose 27, the liquid level in the water collecting device 23 continuously rises, and when the liquid level is higher than one end of the air inlet hose 27 in the water collecting device 23, the air inlet hose 27 is blocked by the water surface, the high-humidity air cannot continuously enter the fresh air duct 24, so that the liquid level is prevented from continuously rising, and the phenomenon that the high water amount overflows the water collecting device 23 is avoided.

As shown in fig. 11, the front end that increases wet casing 21 is provided with one and increases wet box door 22, increases wet box door 22 and articulates on increasing wet casing 21, and water-collecting device 23 adopts transparent material to make, is provided with an observation window on increasing wet box door 22, and the observation window is fretwork or transparent material and makes to conveniently observe the water level in the water-collecting device 23.

Example three:

in order to tightly combine the water collecting device 23 and the air inlet hose 27 and facilitate the separation of the water collecting device 23 and the fresh air pipeline 24, on the basis of the second embodiment, as shown in fig. 5 to 8, the second embodiment further comprises an elastic supporting part, and the elastic supporting part is fixedly arranged in the humidification housing 21 and used for supporting the water collecting device 23.

Specifically, the elastic support portion is supporting spring 60, one end of supporting spring 60 is fixedly arranged in humidification housing 21, and the other end is fixedly connected with a supporting plate 61, and supporting plate 61 is used for abutting against water collecting device 23 to support water collecting device 23.

When the water collecting device 23 does not collect water, the whole weight of the water collecting device 23 is light, the first water collecting opening 23a is connected with the second fresh air opening 24b through the air inlet hose 27, when the water is collected in the water collecting device 23, sinking can be generated due to the action of gravity, so that the first water collecting opening 23a is separated from the air inlet hose 27 and/or the air inlet hose 27 is separated from the second fresh air opening 24b, due to the existence of the supporting spring 60, the supporting spring supports the water collecting device 23 through the supporting plate 61, when the total weight of the water collecting device 23 is heavy and sinks, the supporting spring 60 can overcome the gravity, the water collecting device 23 is prevented from excessively sinking, and the sealing connection among the first water collecting opening 23a, the air inlet hose 27 and the second fresh air opening 24b is kept. When the water collecting device 23 is detached, the water collecting device 23 can be detached only by pressing the water collecting device 23 and compressing the supporting spring 60, so that the water collecting device 23 is convenient to clean.

Example four:

on the basis of any one of the first to the third embodiments, the refrigerator further comprises an air outlet top cover 50, and the air outlet top cover 50 is arranged on the humidifying shell 21 and corresponds to the position of the humidifying air outlet 21a and is used for preventing condensation on the top of the inner wall of the refrigerating chamber 1.

As shown in fig. 13 and 14, a V-shaped concave surface (cross section) is formed at a position corresponding to the air outlet top cover 50, at the upper end surface of the humidification housing 21, and is used for guiding the condensed water to the humidification air outlet 21a, and the position of the humidification air outlet 21a corresponds to the position of the second water collecting opening 23 b. The lowest position of the concave surface is just opposite to the humidification air outlet 21a, the concave surface is used for guiding the backflow of the condensed water to be concentrated above the humidification air outlet 21a, and the condensed water drips into the humidification shell 21 through the humidification air outlet 21a after being increased.

Concretely, humid air from increasing wet venthole 21a and overflowing the back, assaulting to the top cap 50 of giving vent to anger, is giving vent to anger top cap 50 department and is being cooled and condense, and the drop of water after condensing slides to the lowest along the spigot surface under the action of gravity, and when the gravity of drop of water was greater than the adhesive force between drop of water and the top cap 50 of giving vent to anger, the drop of water drips, flows back to increasing in the wet casing 21 through increasing wet venthole 21 a.

Further, as shown in fig. 13 and 14, at least one supporting block 501 is arranged on the outlet top cover 50, a supporting groove corresponding to the supporting block 501 is formed in the humidification housing 21, and when the supporting block 501 is located in the supporting groove, a gap for accommodating airflow is formed between the outlet top cover 50 and the humidification air outlet hole 21 a. As shown in fig. 13, one side of the gas outlet top cover 50 is provided with a supporting block 501, the supporting block 501 is a substantially rectangular convex block, a rectangular groove matched with the rectangular convex block is formed in the humidifying shell 21, the rectangular convex block is clamped in the rectangular groove, the gap between the gas outlet top cover 50 and the humidifying shell 21 is enlarged, the maximum gap is formed, the position of the humidifying gas outlet hole 21a is increased, the gas outlet top cover 50 is obliquely arranged, the bottom end of the gas outlet top cover is located above the humidifying gas outlet hole 21a, so that condensed water can flow to the upper side of the humidifying gas outlet hole 21a, and the condensed water can conveniently drip back into the water collecting device 23 from the humidifying gas outlet hole 21 a.

Further, as shown in fig. 9 and 10, a condensation recovery funnel 28 for guiding the condensed water to flow toward the inside of the water collecting device 23 is provided at the second water collecting opening 23b, and the condensation recovery funnel 28 is extended and connected to the peripheral side wall of the humidification housing 21. Because the formation of comdenstion water has certain randomness, the water droplet that drops from increasing wet venthole 21a also probably can't just drop to second water collecting opening 23b and then get into water-collecting device 23 in receiving the influence of air current, when rivers drop to second water collecting opening 23b week side, the rivers can flow to second water collecting opening 23 b's position under the guide of condensation recovery funnel 28, and then get into water-collecting device 23. And the second water collecting opening 23b and the condensation recovery funnel 28 are in sealed connection through a third sealing structure.

Example five:

in order to flexibly adjust the ventilation volume according to the actual humidification requirement, the humidity condition in the refrigerating chamber 1 is controlled and adjusted.

In addition to any one of the first to fourth embodiments, in the present embodiment, as shown in fig. 12 to 15, an opening degree adjusting mechanism 40 is further disposed on the humidification housing 21, and the opening degree adjusting mechanism 40 is used for adjusting the size of the output volume of the humidification air outlet 21 a.

As shown in fig. 14, the opening degree adjustment mechanism 40 includes an adjustment knob 41, an adjustment gear 42, and an adjustment slider 52.

The adjusting knob 41 is rotatably arranged on the humidifying shell 21; the adjusting gear 42 is positioned in the humidifying shell 21, and one end of the adjusting knob 41 extends to be in driving connection with the adjusting gear 42; specifically, be provided with a drive shaft on adjusting knob 41, the drive shaft passes through the bearing and sets up on the lateral wall that increases wet casing 21, and the one end that adjusting knob 41 was kept away from to the drive shaft passes through the key piece drive and is connected to adjusting gear 42 or fixed connection to adjusting gear 42 to can drive adjusting gear 42 and rotate when making adjusting knob 41 rotate.

The adjusting slide block 52 is slidably disposed on the humidity increasing housing 21, specifically, as shown in fig. 13, a pair of buckles is disposed on an inner side wall of the humidity increasing housing 21, the adjusting slide block 52 is located between the two buckles, the adjusting slide block 52 and the two buckles keep sliding connection, the adjusting slide block 52 is provided with a plurality of adjusting holes 522, and the number of the adjusting holes 522 can be set according to actual needs; the adjusting slide block 52 is provided with an adjusting rack 521, the adjusting rack 521 is positioned on one side of the adjusting slide block 52 departing from the humidifying shell 21, and the adjusting rack 521 is meshed with the adjusting gear 42; when the adjusting slide block 52 moves, the adjusting slide block is used for adjusting the contact ratio of the adjusting hole 522 and the humidifying air outlet hole 21a so as to control the air outlet amount.

As shown in fig. 15, it increases wet venthole 21a to increase to have seted up on the casing 21 to increase wet, adjustment hole 522 has been seted up on the adjustment slider 52, when adjust knob 41 rotates, it removes to drive through adjusting gear 42 and adjust the rack 521, adjust the rack 521 and drive adjustment slider 52 and slide, when adjustment slider 52 slides, can make adjustment hole 522 and increase wet venthole 21a be switching between coincidence or partial coincidence and the dislocation three kinds of states, when adjusting hole 522 and increasing wet venthole 21a partial coincidence, through the coincidence degree of difference, can adjust the volume that the air current passes through, when both misplace, realize sealing, thereby realize the regulation to the air output.

Example six:

in the present embodiment, unlike the fifth embodiment, as shown in fig. 16, the opening degree adjustment mechanism 40 includes an adjustment knob 41 and an adjustment unit:

the adjusting knob 41 is rotatably arranged on the humidification housing 21, and the structure of the adjusting knob is the same as that of the fifth embodiment;

the adjusting knob 41 extends and is connected to the adjusting part in a driving way, and a plurality of adjusting stoppers 43 are arranged on the adjusting part; wherein the content of the first and second substances,

when the projection of the humidification air outlet 21a in the direction of the rotation axis of the adjusting portion completely falls on the adjusting stopper 43, the humidification air outlet 21a is closed; when the projection part of the humidification air outlet 21a in the direction of the rotation axis of the regulating portion does not fall on the regulating stopper 43, the humidification air outlet 21a is opened.

When the adjusting knob 41 is rotated, the adjusting stopper 43 is rotated. When the adjusting block 43 rotates, the adjusting block 43 and the humidifying air outlet 21a can be completely overlapped, partially overlapped and completely dislocated, when the adjusting block 43 and the humidifying air outlet 21a are completely overlapped, the adjusting block 43 blocks the humidifying air outlet 21a, and the humidifying air outlet 21a is closed. When the part is overlapped and dislocated completely, the humidity increasing air outlet 21a is partially or completely communicated into the humidity increasing shell 21, so that the ventilation capacity is adjusted.

Example seven:

in this embodiment, unlike the fifth embodiment, as shown in fig. 17, the opening degree adjustment mechanism 40 includes a shift lever 44 and a stopper 45:

the baffle 45 is slidably arranged on the humidification housing 21, one end of the deflector rod 44 is connected to the baffle 45 in a driving manner, in this embodiment, the deflector rod 44 and the baffle 45 are fixedly connected in a detachable manner by a fastening piece, the deflector rod 44 is used for driving the baffle 45 to move, and the baffle 45 is provided with a drainage hole 451; wherein the content of the first and second substances,

when the drain hole 451 and the humidification outlet 21a are completely misaligned in a projection perpendicular to a moving direction of the baffle 45, the humidification outlet 21a is closed; when the drain hole 451 and the humidification outlet 21a partially or completely overlap each other in projection in a direction perpendicular to the moving direction of the baffle 45, the humidification outlet 21a is opened.

When the shift lever 44 moves, the vent hole 451 and the humidification air outlet 21a are in a completely overlapped, partially overlapped and completely dislocated state, and when the vent hole 21a is completely overlapped and partially overlapped, the humidification air outlet 21a is partially or completely communicated with the humidification housing 21, so that the ventilation capacity is adjusted. When the air inlet is completely staggered, the damp air outlet 21a is blocked by the baffle 45, and air flow cannot pass through the damp air outlet.

The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the embodiments, and any changes that can be considered by those skilled in the art shall fall within the protection scope of the present invention.

Claims (7)

1. The utility model provides a new trend refrigerator based on dust keeper, includes walk-in and freezer, the walk-in with at least one cold-stored air intake and a cold-stored return air inlet have between the freezer to form a return flow channel, its characterized in that still includes:

the fresh air module at least comprises a first fresh air opening communicated to the outside of the refrigerator and a second fresh air opening communicated to a refrigerating chamber of the refrigerator, the first fresh air opening is communicated to the second fresh air opening, and the first fresh air opening is higher than the second fresh air opening in the vertical direction; and (c) a second step of,

the dustproof device is arranged at the first fresh air opening and comprises a dustproof hole cover and a dustproof filter screen, and an air inlet is formed in the dustproof hole cover.

2. The fresh air refrigerator based on the dustproof device as claimed in claim 1, wherein the dustproof hole cover is detachably installed at the first fresh air opening, and the dustproof filter screen is detachably installed in the dustproof hole cover.

3. The fresh air refrigerator based on the dustproof device according to claim 2, wherein an upper top cover is arranged at one end of the dustproof hole cover, and when the dustproof hole cover is located at the first fresh air opening, a projection of the first fresh air opening in a vertical direction completely falls into the top cover;

the first fresh air opening is provided with a clamping groove, and the dustproof hole cover is provided with a clamping block matched with the clamping groove.

4. The fresh air refrigerator based on the dustproof device as claimed in claim 3, wherein a receiving cavity is formed in the dustproof hole cover, the receiving cavity is arranged to penetrate through a side away from the top cover, the dustproof filter screen is arranged at the bottom of the receiving cavity, and a filtering material is arranged in a space surrounded by the dustproof filter screen and the receiving cavity.

5. The fresh air refrigerator based on the dustproof device as claimed in claim 1, wherein the fresh air module further comprises a water collecting device, and the water collecting device is located below the second fresh air opening and used for collecting condensed water flowing out of the second fresh air opening.

6. The fresh air refrigerator based on the dustproof device as claimed in claim 5, wherein the first fresh air opening and the second fresh air opening are communicated through a fresh air pipeline;

the fresh air module further comprises a humidification shell, the humidification shell is detachably mounted in the refrigerating chamber, and the water collecting device is located in the humidification shell; the water collecting device is provided with a first water collecting opening and a second water collecting opening, and the second fresh air opening is detachably connected to the first water collecting opening in a penetrating manner; and the humidity increasing shell is provided with a humidity increasing air outlet for accommodating air flowing out.

7. The fresh air refrigerator based on the dustproof device as claimed in claim 6, wherein the second fresh air opening is communicated with the first water collecting opening through an air inlet hose, and an opening of the air inlet hose in the water collecting device is lower than the first water collecting opening in the vertical direction.

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