CN109764628B

CN109764628B - Drawer assembly and refrigeration equipment with same

Info

Publication number: CN109764628B
Application number: CN201910223352.6A
Authority: CN
Inventors: 朱国梁; 肖遥; 宁志芳
Original assignee: Hefei Hualing Co Ltd; Midea Group Co Ltd; Hefei Midea Refrigerator Co Ltd
Current assignee: Hefei Hualing Co Ltd; Midea Group Co Ltd; Hefei Midea Refrigerator Co Ltd
Priority date: 2019-03-22
Filing date: 2019-03-22
Publication date: 2020-10-30
Anticipated expiration: 2039-03-22
Also published as: CN109764628A

Abstract

The invention discloses a drawer assembly and refrigeration equipment with the same, wherein the drawer assembly comprises: the air pump comprises a shell, a first air pumping device and a second air pumping device, wherein the shell is provided with an accommodating cavity with an opening at the front side; the sealing film is arranged in the containing cavity and divides the containing cavity into a first air cavity and a second air cavity, the first air cavity is communicated with the first air exhaust hole, and the second air cavity is communicated with the second air exhaust hole and the front side opening; and the drawer is movably arranged on the second air cavity through the front opening and is suitable for sealing the second air cavity under the condition that the drawer is positioned at the position for closing the front opening. The drawer assembly provided by the embodiment of the invention has the advantages of good fresh-keeping effect, smooth movement between the drawer and the shell and the like.

Description

Drawer assembly and refrigeration equipment with same

Technical Field

The invention relates to the technical field of household appliances, in particular to a drawer assembly and refrigeration equipment with the same.

Background

In the related art, the refrigerator with the fresh-keeping function generally adopts a vacuum fresh-keeping mode to keep food fresh, but because the vacuum degree of the environment for storing food is not high, the inhibition effect on aerobic respiration of food is limited, and the defects of poor fresh-keeping effect and the like exist. Furthermore, some refrigerators in the related art keep fresh food by setting up the plastic wrap in the drawer, but the plastic wrap can produce the interference to the pull of drawer to cause the condition such as the pull of drawer to take place not smoothly.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the drawer assembly which has a fresh-keeping function and a good fresh-keeping effect.

In addition, the invention also provides refrigeration equipment with the drawer assembly.

A drawer assembly according to an embodiment of the first aspect of the invention comprises: the air pump comprises a shell, a first air pumping hole and a second air pumping hole, wherein the shell is provided with an accommodating cavity with a front side opening; the sealing membrane is arranged in the accommodating cavity and divides the accommodating cavity into a first air cavity and a second air cavity, the first air cavity is communicated with the first air exhaust hole, and the second air cavity is communicated with the second air exhaust hole and the front side opening; a drawer movably provided to the second air chamber from the front opening and adapted to seal the second air chamber in a condition where the drawer is in a position to close the front opening.

The drawer assembly provided by the embodiment of the invention has the advantages of good fresh-keeping effect, smooth movement of the drawer relative to the shell and the like.

In addition, the drawer assembly according to the above embodiment of the present invention may further have the following additional technical features:

according to some embodiments of the invention, the front face of the housing is provided with a first seal for sealing a gap between the front face of the housing and the drawer.

Optionally, the front end face of the housing is provided with a mounting groove for mounting the first sealing element, and the outer peripheral edge of the sealing membrane is fixed in the mounting groove through the first sealing element.

According to some embodiments of the invention, each of the first and second extraction holes is defined by a suction nozzle projecting at least partially from an outer surface of the housing, the suction nozzle comprising: the fixing part is arranged close to the inner surface of the shell; the extending portion penetrates through the wall of the shell in the wall thickness direction of the shell and extends out of the shell, and the extending portion defines the first air exhaust hole or the second air exhaust hole.

Optionally, the inner surface of the housing has a recessed portion, the fixing portion is disposed in the recessed portion, and a second sealing member is disposed between the fixing portion and the recessed portion.

Optionally, the extension portion defining the second suction hole penetrates the sealing membrane to fix a part of the sealing membrane between the fixing portion and an inner surface of the wall of the housing.

According to some embodiments of the invention, the housing comprises: a housing body having a top opening; the top plate is arranged at the top of the shell body and used for opening and closing the top opening, and the top plate and the shell body define the accommodating cavity under the condition that the top plate is in the position for closing the top opening.

Optionally, the top plate is made of a light-transmissive material.

According to some embodiments of the invention, the drawer is provided with a support arm and the housing is provided with a guide rail in sliding engagement with the support arm.

Optionally, the housing is provided with an electromagnet assembly, and the support arm is provided with an iron part which is suitable for attracting the electromagnet assembly.

Optionally, the support arm is disposed outside the drawer, and the guide rail is disposed on an outer wall of the housing.

According to some embodiments of the present invention, the drawer is provided with a back pressure device configured to achieve sealing in a closed state and communicate the second air chamber and the outside in an open state to let outside air into the second air chamber.

Optionally, the drawer is provided with a rotatable handle at the front, the handle being adapted to trigger the back pressure device to switch between the closed state and the open state during rotation.

Optionally, the drawer comprises: a drawer body defining a storage space and having a front wall with a vent communicating with the storage space; the face frame is arranged on the front portion of the drawer body and is in snap fit with the front wall of the drawer body, and the back pressure device is installed on the face frame and comprises a plugging portion used for opening and closing the vent hole.

According to a second aspect of the invention, a refrigeration device is provided, which comprises a drawer assembly according to the first aspect of the invention.

According to the refrigeration equipment provided by the embodiment of the invention, the drawer assembly provided by the embodiment of the first aspect of the invention has the advantages of good fresh-keeping effect, smooth drawing of the drawer and the like.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural view of a drawer assembly according to an embodiment of the present invention;

FIG. 2 is an exploded view of a drawer assembly according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of the drawer assembly according to an embodiment of the present invention when the first pumping hole is not pumping the first air chamber;

FIG. 4 is a cross-sectional view of the drawer assembly after the first pumping aperture pumps the first gas chamber in accordance with an embodiment of the present invention;

FIG. 5 is a cross-sectional view of the drawer assembly according to the embodiment of the present invention when the second pumping hole pumps the second air cavity;

FIG. 6 is an enlarged partial schematic view at A of FIG. 5;

FIG. 7 is an enlarged partial schematic view at B of FIG. 5;

FIG. 8 is an enlarged partial schematic view at C of FIG. 5;

FIG. 9 is a top view of a drawer assembly according to an embodiment of the present invention.

Reference numerals:

a drawer assembly 100;

a housing 10; the accommodation chamber 10 a; a case body 11; a recess 111; mounting holes 111 a; fixing grooves 111 b; a mounting groove 112; a top plate 12; a suction nozzle 13; a fixed portion 131; an extension 132; the first pumping hole 132 a; the second pumping hole 132 b; threads 133; a guide rail 14; an electromagnet assembly 15;

a drawer 20; a drawer body 21; a storage space 21 a; a front wall 211 of the drawer body; the vent holes 211 a; a support arm 212; an iron member 213; a face frame 22; a handle 221; a back pressure device 222; a sealing portion 2221; an inner abutment 2221 a; connecting shaft 2221 b; an external abutment portion 2221 c; a return spring 2221 d; a buckle 23;

a sealing film 30; a first air chamber 31; a second air chamber 32;

a first seal member 40; a second seal 41.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner and are not to be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A drawer assembly 100 according to an embodiment of the first aspect of the present invention is described below with reference to fig. 1-9. The relative positions of the structures are only illustrated in the drawings in the vertical, left, right, front and rear directions, and are not intended to limit the present invention, and the drawer assembly 100 and the refrigeration apparatus having the same according to the embodiment of the present invention may be disposed in any direction and used.

As shown in fig. 1 to 9, a drawer assembly 100 according to an embodiment of the present invention includes a housing 10, a sealing film 30, and a drawer 20.

The housing 10 has an accommodating chamber 10a with a front opening, a first air suction hole 132a and a second air suction hole 132b are formed in the wall of the housing 10, a sealing film 30 is provided in the accommodating chamber 10a and divides the accommodating chamber 10a into a first air chamber 31 and a second air chamber 32, the first air chamber 31 is communicated with the first air suction hole 132a, the second air chamber 32 is communicated with the second air suction hole 132b and the front opening, the drawer 20 is movably provided in the second air chamber 32 from the front opening, and the sealing film is adapted to seal the second air chamber 32 when the drawer 20 is in a position for closing the front opening.

Note that the sealing film 30 is configured to be attached to the surface of the case 10 when the first air chamber 31 is evacuated through the first evacuation hole 132a, and to be attached to the surface of the drawer 20 when the second air chamber 32 is evacuated through the second evacuation hole 132 b.

As shown in fig. 3 to 5, the sealing film 30 divides the accommodating chamber 10a into a first air chamber 31 and a second air chamber 32 isolated from each other, that is, the first air chamber 31 and the second air chamber 32 are not communicated, wherein the first air chamber 31 is defined by the sealing film 30 and the inner wall of the housing 10, the second air chamber 32 is defined by the surface of the sealing film 30 facing away from the first air chamber 31, the second air chamber 32 is always communicated with the front side opening, and the drawer 20 is always located in the second air chamber 32 during the movement of the accommodating chamber 10 a.

As shown in fig. 1 and 2, the first suction hole 132a and the second suction hole 132b penetrate the wall of the housing 10 in the thickness direction of the wall of the housing 10 to communicate the accommodating chamber 10a with the outside, wherein the first suction hole 132a communicates only with the first air chamber 31, and the second suction hole 132b communicates only with the second air chamber 32. The drawer 20 has a front wall that opens and closes the front opening of the housing chamber 10a, and when the drawer 20 is in a position where the front opening is closed, the front end surface of the housing 10 abuts against a surface of the front wall of the drawer 20 that faces the housing 10 to shield the housing chamber 10a from the outside. It will be appreciated that the drawer 20 is used to store items to be refrigerated or frozen, such as food items.

The operation of the drawer assembly 100 according to the embodiment of the present invention will be described with reference to fig. 3 to 5.

As shown in fig. 3, when the drawer 20 is in a position where the front opening is opened, that is, when the drawer 20 is pulled out with respect to the housing 10, the sealing film 30 is in a natural state in the housing 10.

As shown in fig. 4, the air in the first air cavity 31 is pumped to the outside through the first pumping hole 132a, the air content in the first air cavity 31 gradually decreases to form a negative pressure, and at this time, the sealing film 30 shrinks towards the first air cavity 31, so that the volume of the second air cavity 32 gradually increases; when the second air chamber 32 reaches a certain volume, the drawer 20 is pushed into the accommodating chamber 10a through the front side opening until the front wall of the drawer 20 abuts against the front end surface of the housing 10.

As shown in fig. 5, the drawer 20 is pushed to a position where the front opening is closed, then the air in the second air chamber 32 is pumped to the outside through the second pumping hole 132b, the air content in the second air chamber 32 is gradually reduced, the air pressure is gradually reduced, the volume of the second air chamber 32 is gradually reduced under the negative pressure, and the sealing film 30 is contracted toward the drawer 20 until the sealing film 30 is attached to the outer surface of the drawer 20, so that the sealing film 30 wraps the surface of the article stored in the drawer 20.

According to the drawer assembly 100 of the embodiment of the invention, the sealing film 30 is arranged in the accommodating cavity 10a, the accommodating cavity 10a is divided into the first air cavity 31 and the second air cavity 32 by the sealing film 30, the shell 10 is provided with the first air extraction hole 132a and the second air extraction hole 132b which are respectively communicated with the first air cavity 31 and the second air cavity 32, and air in the second air cavity 32 is extracted through the second air extraction hole 132b, so that the sealing film 30 is attached to the outer surface of the drawer 20, and the sealing film 30 covers the surface of the articles stored in the drawer 20, therefore, the articles can be prevented from contacting with the air, the articles are prevented from being oxidized, and the articles can be kept fresh for a long time. Furthermore, through the arrangement of the first air suction hole 132a, and before the drawer 20 is placed in the second air cavity 32, air in the first air cavity 31 is drawn out, so that the sealing film 30 is expanded towards the inner wall of the housing 10, and further, the volume of the second air cavity 32 is increased, the sealing film 30 can be prevented from interfering with the drawer 20 in the process of placing the drawer 20 in the housing 10, and the drawer 20 can move more smoothly relative to the accommodating cavity 10 a. Therefore, the drawer assembly 100 according to the embodiment of the present invention has the advantages of good fresh-keeping effect, smooth movement between the drawer 20 and the housing 10, and the like.

In some embodiments of the present invention, as shown in fig. 3 to 6, the front surface of the housing 10 is provided with a first sealing member 40 for sealing a gap between the front surface of the housing 10 and the drawer 20. Specifically, when the drawer 20 is located at the position for closing the front opening, the front wall of the drawer 20 abuts against the front end surface of the housing 10, the first sealing member 40 is located between the front wall of the drawer 20 and the front end surface of the housing 10 to seal a gap between the front end surface of the housing 10 and the front wall of the drawer 20, and therefore when the drawer 20 is closed at the front opening, the sealing effect of the accommodating cavity 10a is good, external air can be prevented from entering the second air cavity 32, and the fresh-keeping effect of the drawer assembly 100 is ensured. It should be noted that, in other embodiments of the present invention, the first sealing member 40 may be disposed on the front wall of the drawer 20, and when the drawer 20 closes the front opening, the first sealing member 40 is located between the front wall of the drawer 20 and the front end surface of the housing 10 to seal the gap between the front end surface of the housing 10 and the front wall of the drawer 20.

In some alternative examples of the present invention, as shown in fig. 6, the front end surface of the housing 10 is provided with a mounting groove 112 for mounting the first sealing member 40, and the outer peripheral edge of the sealing film 30 is fixed in the mounting groove 112 by the first sealing member 40.

Specifically, the mounting groove 112 is formed by recessing behind the front end face of the housing 10, and the mounting groove 112 extends along the circumference of the edge of the front side opening to form a ring shape, the first sealing element 40 is embedded in the mounting groove 112, and the first sealing element 40 is configured to be the same ring shape as the annular mounting groove 112, the outer peripheral edge of the sealing film 30 is pressed tightly in the mounting groove 112 by the first sealing element 40, thereby, the sealing effect of the first sealing element 40 is further improved, and the fixing effect of the sealing film 30 is better, and the installation is more convenient. Preferably, the first sealing member 40 is a rubber ring, and thus, the first sealing member 40 is obtained by trading materials and is manufactured at a low cost.

In some embodiments of the present invention, as shown in fig. 3 to 5 and 7, each of the first suction hole 132a and the second suction hole 132b is defined by the suction nozzle 13 protruding at least partially from the outer surface of the casing 10, the suction nozzle 13 includes a fixing portion 131 and an extending portion 132, the fixing portion 131 is disposed closely to the inner surface of the casing 10, the extending portion 132 is connected to the fixing portion 131, the extending portion 132 penetrates the wall of the casing 10 in the wall thickness direction of the casing 10 and protrudes outside the casing 10, and the extending portion 132 defines the first suction hole 132a or the second suction hole 132 b.

For example, referring to the second pumping hole 132b shown in fig. 7, the pumping nozzle 13 is installed on the rear wall of the casing 10, each of the first pumping hole 132a and the second pumping hole 132b includes a fixing portion 131 and an extending portion 132 connected to the fixing portion 131, wherein the fixing portion 131 is located in the accommodating chamber 10a and disposed close to the inner surface of the rear wall of the casing 10, the extending portion 132 penetrates through the rear wall of the casing 10 and extends out of the accommodating chamber 10a, a portion of the extending portion 132 extending out of the accommodating chamber 10a is used for connecting a vacuum pump, and the extending portion 132 and the fixing portion 131 jointly define the first pumping hole 132a or the second pumping hole 132 b. Thus, the connection of the vacuum pump to the first pumping hole 132a or the second pumping hole 132b is facilitated.

In some alternative examples of the present invention, the outer surface of the extending portion 132 is configured with threads 133, the rear wall of the housing 10 is provided with a mounting hole 111a, and the outer surface of the extending portion 132 is matched with the threads 133 on the inner surface of the mounting hole 111a, so that the extending portion 132 can extend out of the housing 10 by connecting the outer surface of the extending portion 132 with the threads 133 on the mounting hole 111a during the installation of the suction nozzle 13, and the fixing portion 131 can be arranged in close contact with the inner surface of the rear wall of the housing 10, and the suction nozzle 13 can be installed more conveniently.

Alternatively, as shown in fig. 7, the inner surface of the housing 10 has a recessed portion 111, the fixing portion 131 is disposed in the recessed portion 111, and the second sealing member 41 is disposed between the fixing portion 131 and the recessed portion 111. Specifically, the recess 111 is formed by recessing the inner surface of the rear wall of the housing 10, at least a portion of the fixing portion 131 is embedded in the recess 111, and the bottom wall of the recess 111 is configured with a fixing groove 111b for mounting the second packing 41, the second packing 41 being located between the fixing portion 131 and the bottom wall of the recess 111 to seal the gap between the fixing portion 131 and the recess 111, whereby the sealability of the accommodation chamber 10a is further improved.

Alternatively, as shown in fig. 7, the extension 132 defining the second suction hole 132b penetrates the sealing film 30 to fix a portion of the sealing film 30 between the fixing portion 131 and the inner surface of the wall of the housing 10.

Specifically, the extension portion 132 defining the second suction hole 132b penetrates the sealing film 30 and protrudes from the housing 10, and the fixing portion 131 connected to the extension portion 132 is located in the second air chamber 32, so that the edge portion of the sealing film 30 through which the extension portion 132 penetrates is pressed by the fixing portion 131 between the fixing portion 131 and the inner surface of the rear wall of the housing 10, thereby isolating the first air chamber 31 from the second air chamber 32 and communicating with the first suction hole 132a and the second suction hole 132b, respectively; further, a part of the sealing film 30 is fixed to the inner surface of the rear wall of the housing 10, whereby the fixing effect of the sealing film 30 in the housing chamber 10a is good.

In some embodiments of the present invention, as shown in fig. 2, the housing 10 includes a housing body 11 and a top plate 12, the housing body 11 has a top opening, the top plate 12 is provided on the top of the housing body 11 for opening and closing the top opening, and a receiving chamber 10a is defined with the housing body 11 with the top plate 12 in a position closing the top opening.

In some alternative examples of the invention, the top plate 12 is made of a light-transmissive material. That is, the user can visually observe the inside of the accommodating cavity 10a through the top plate 12, so that the user can obtain the freshness of the articles in the drawer 20 in real time during the use process, thereby bringing a better use experience to the user.

In some embodiments of the invention, as shown in fig. 1 and 2, the drawer 20 is provided with a support arm 212, and the housing 10 is provided with a rail 14 slidably engaged with the support arm 212. Specifically, the support arm 212 is supported on the rail 14, and the support arm 212 is slidable relative to the rail 14, so that the movement of the drawer 20 relative to the housing 10 is more smooth.

Alternatively, as shown in fig. 1 and 2, the support arm 212 is provided on the outside of the drawer 20, and the rail 14 is provided on the outer wall of the housing 10. Specifically, one end of the supporting arm 212 is connected to the front wall of the casing 10, and the supporting arm 212 extends rearward from the front wall of the casing 10, during the movement of the drawer 20 relative to the casing 10, the supporting arm 212 is located outside the casing 10, the guide rail 14 is disposed on the outer side wall of the casing 10, and when the drawer 20 moves within the casing 10, the supporting arm 212 and the guide rail 14 form a fit to stabilize the movement track of the drawer 20 relative to the casing 10. Therefore, when the drawer 20 slides relative to the housing 10, the sealing film 30 does not interfere with the drawer 20, and the spatial layout is reasonable.

In some alternative examples of the invention, with continued reference to the example shown in figures 1 and 2, the casing 10 is provided with an electromagnet assembly 15 and the support arm 212 is provided with a ferrous part 213 adapted to engage with the electromagnet assembly 15. Specifically, the electromagnet assembly 15 is disposed on the rear wall of the housing 10 and located outside the housing 10, the electromagnet assembly 15 is located at the rear end of the guide rail 14, the iron member 213 is disposed at the rear end of the supporting arm 212, when the drawer 20 is located at a position where the front opening is closed, the rear end of the supporting arm 212 moves to the rear end of the guide rail 14, the electromagnet assembly 15 is powered on and attracts the iron member 213, so that the drawer 20 cannot move relative to the housing 10, and therefore, the drawer 20 can be prevented from sliding out of the housing 10 due to other factors, and the sealing performance of the space in the housing 10 is affected.

Further, when the housing 10 is located at the first time when the front opening is closed, the electromagnet assembly 15 is powered on and is attracted to the iron member 213, then the second air cavity 32 is pumped through the second pumping hole 132b, after a part of air is pumped out, the electromagnet assembly 15 is powered off, at this time, because the second air cavity 32 is a negative pressure, the drawer 20 can be pressed in the housing 10 through the pressure difference between the atmospheric pressure and the second air cavity 32, and then the second air cavity 32 is continuously pumped through the second pumping hole 132b until the air pressure in the second air cavity 32 reaches a predetermined value. Thus, the power consumption of the electromagnet assembly 15 can be reduced, thereby reducing the overall power consumption of the drawer assembly 100.

In some embodiments of the present invention, as shown in fig. 9, the two guide rails 14 are disposed on the left and right side walls of the housing 10, the two support arms 212 are disposed corresponding to the two guide rails 14, and the two electromagnet assemblies 15 are disposed corresponding to the two support arms 212, so that the movement of the drawer 20 relative to the housing 10 is more stable, and the drawer 20 can be more smoothly drawn in the accommodating cavity 10 a.

In some embodiments of the present invention, as shown in fig. 5 and 8, the drawer 20 is provided with a back pressure device 222, and the back pressure device 222 is configured to achieve sealing in a closed condition and communicate the second air chamber 32 with the outside in an open condition to introduce the outside air into the second air chamber 32. That is, when the back pressure device 222 is in the closed state, the second air chamber 32 is isolated from the outside so that the second air chamber 32 maintains the closed state; when the back pressure device 222 is in the open state, the second air chamber 32 communicates with the outside so that the outside air enters the second air chamber 32 to return the second air chamber 32 to the normal pressure, thereby allowing the drawer 20 to be pulled out of the casing 10. Therefore, the second air chamber 32 is conveniently restored to normal pressure by arranging the back pressure device 222, and the drawer 20 is conveniently pulled out.

Optionally, as shown in fig. 5 and 8, the front of the drawer 20 is provided with a rotatable catch 221, and the catch 221 is adapted to trigger the back pressure device 222 to switch between the closed state and the open state during rotation. Specifically, the catch 221 is provided at a front side of the drawer 20, and the catch 221 is rotatable with respect to the housing 10, so that the drawer 20 is easily pulled out of the housing 10 by rotating the catch 221 at a certain angle when the drawer 20 is pulled out. Furthermore, the buckle 221 is linked with the back pressure device 222, and the buckle 221 is configured such that the buckle 221 can trigger the back pressure device 222 during the rotation process to switch the back pressure device 222 between the closed state and the open state, so that the back pressure device 222 is convenient to open or close.

In some specific examples of the present invention, as shown in fig. 2, 5 and 8, the drawer 20 includes a drawer body 21 and a face frame 22, wherein the drawer body 21 defines a storage space 21a and has a front wall, the front wall 211 of the drawer body has a vent hole 211a communicating with the storage space 21a, the face frame 22 is provided at the front of the drawer body 21 and the face frame 22 is snap-fitted with the front wall 23 of the drawer 20, and the back pressure device 222 is mounted to the face frame 22 and includes a blocking portion 2221 for opening and closing the vent hole 211 a.

Specifically, the face frame 22 is mounted on the front wall 211 of the drawer body, a plurality of spaced clips 23 are provided at the edge of the face frame 22, and the clips 23 extend in the thickness direction of the front wall 211 of the drawer body so that the plurality of clips 23 are clipped to the front wall 211 of the drawer body.

The back pressure device 222 includes a blocking portion 2221, the blocking portion 2221 includes an inner abutting portion 2221a, an outer abutting portion 2221c, and a connecting shaft 2221b connected between the inner abutting portion 2221a and the outer abutting portion 2221c, wherein the connecting shaft 2221b is inserted into the air vent 211a, the length of the connecting shaft 2221b is greater than the thickness of the front wall 211 of the drawer body, the inner abutting portion 2221a is located inside the drawer 20, the outer abutting portion 2221c is located outside the drawer 20, and the inner abutting portion 2221a and the outer abutting portion 2221c are shaped such that none of them can pass through the air vent 211 a. The connecting shaft 2221b is sleeved with a return spring 2221d, and the return spring 2221d is compressed between the outer surface of the front wall 211 of the drawer body and the surface of the external abutting portion 2221c facing the internal abutting portion 2221a, so that the internal abutting portion 2221a abuts against the inner surface of the front wall 211 of the drawer body and the external abutting portion 2221c abuts against the buckle 221, thereby the internal abutting portion 2221a normally closes the air vent, and thus the normal pressure device is always in a closed state.

The buckle 221 is provided with an abutting wall abutting against the external abutting portion 2221c, and the abutting wall drives the blocking portion 2221 to move towards the inside of the drawer body 21 in the process of rotating along with the buckle 221, so that the internal abutting portion 2221a is separated from the inner surface of the front wall 211 of the drawer body, and the vent hole 211a is opened, so that the outside air enters the inside of the drawer body 21 through the vent hole 211 a.

A drawer assembly 100 according to one embodiment of the present invention is described below with reference to fig. 1-9.

As shown in fig. 1-9, the drawer assembly 100 includes a housing 10, a drawer 20, and a sealing membrane 30.

Wherein, casing 10 includes shell body 11 and roof 12, shell body 11 and roof 12 prescribe a limit to the chamber 10a that holds that has the front side opening jointly, the location is made by transparent material, seal membrane 30 is located and is held in chamber 10a and the outer border of seal membrane 30 is fixed in front side opening department, seal membrane 30 will hold chamber 10a and separate for first air cavity 31 and second air cavity 32, the back wall of casing 10 is equipped with respectively with hold two suction nozzles 13 of chamber 10a intercommunication, one of them suction nozzle 13 has the first aspirating hole 132a with external and first air cavity 31 intercommunication, another suction nozzle 13 has the second aspirating hole 132b with external and second air cavity 32 intercommunication, drawer 20 is movably located in holding chamber 10a and being located second air cavity 32 through the front side opening.

Describing the operation of the drawer assembly 100, when the drawer 20 is located at the position for opening the front opening, the air in the first air chamber 31 is drawn out by the suction nozzle 13 to make the sealing film 30 closely contact the inner wall of the casing 10, and then the drawer 20 is moved to the position for closing the front opening, and the accommodating chamber 10a is closed, and the air in the second air chamber 32 is drawn out by the suction nozzle 13 to make the sealing film 30 closely contact the outer surface of the drawer 20.

The air nozzle 13 includes a fixing portion 131 and an extending portion 132, the fixing portion 131 is disposed closely to the inner surface of the casing 10, the extending portion 132 is connected to the fixing portion 131, the extending portion 132 penetrates through the wall of the casing 10 in the wall thickness direction of the casing 10 and extends out of the casing 10, and the extending portion 132 defines a first air exhaust hole 132a or a second air exhaust hole 132 b. Wherein the extension 132 defining the second suction hole 132b penetrates the sealing film 30 and fixes a portion of the sealing film 30 between the fixing portion 131 and the inner surface of the wall of the case 10.

The front end surface of the housing body 11 is provided with a mounting groove 112 for mounting the first sealing member 40, and when the drawer 20 is located at a position for closing the front opening, the first sealing member 40 is located between the front end surface of the housing 10 and the drawer 20 to perform a sealing function. The left side wall and the right side wall of the shell body 11 are respectively provided with a guide rail 14, the left side wall and the right side wall of the drawer 20 are provided with supporting arms 212 which are in one-to-one correspondence with the two guide rails 14, the supporting arms 212 are in sliding fit with the guide rails 14, the rear wall of the shell body 10 is provided with an electromagnet assembly 15, the end part of the supporting arm 212 is provided with an iron part 213, and the electromagnet assembly 15 is attracted with the iron part 213 when being.

The drawer 20 comprises a drawer body 21 and a face frame 22, the face frame 22 is connected with a front wall 211 of the drawer body in a buckling mode 23, the front wall 211 of the drawer body is provided with a vent hole 211a penetrating through the drawer body in the thickness direction, a back pressure device 222 is arranged at the vent hole 211a, the back pressure device 222 is configured to achieve sealing in a closed state, and the second air cavity 32 is communicated with the outside to enable outside air to be introduced into the second air cavity 32 in an open state. The face frame 22 is provided with a button 221 which can rotate relative to the face frame 22, and the button 221 is suitable for triggering the back pressure device 222 to switch between the closed state and the open state when rotating.

The refrigeration device provided by the embodiment of the second aspect of the invention comprises the drawer assembly 100 provided by the embodiment of the first aspect of the invention. The refrigeration device of the embodiment of the invention can be a refrigerator.

According to the refrigeration equipment provided by the embodiment of the invention, by utilizing the drawer assembly 100 provided by the embodiment of the first aspect of the invention, the advantages of good fresh-keeping effect, smooth drawing of the drawer 20 and the like are achieved.

Other constructions and operations of the drawer assembly 100 and the refrigeration appliance having the same according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example" or "some examples" or the like are intended to 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.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A drawer assembly, comprising:

the air pump comprises a shell, a first air pumping hole and a second air pumping hole, wherein the shell is provided with an accommodating cavity with a front side opening;

the sealing membrane is arranged in the accommodating cavity and divides the accommodating cavity into a first air cavity and a second air cavity, the first air cavity is communicated with the first air exhaust hole, and the second air cavity is communicated with the second air exhaust hole and the front side opening;

a drawer movably provided to the second air chamber from the front opening and adapted to seal the second air chamber in a condition where the drawer is in a position to close the front opening.

2. The drawer assembly of claim 1, wherein the front face of the housing is provided with a first seal for sealing a gap between the front face of the housing and the drawer.

3. The drawer assembly of claim 2, wherein the front face of the housing is provided with a mounting groove for mounting the first seal member, and the outer peripheral edge of the seal membrane is secured within the mounting groove by the first seal member.

4. The drawer assembly of claim 1, wherein each of the first and second suction holes is defined by a suction nozzle comprising:

the fixing part is arranged close to the inner surface of the shell;

the extending portion penetrates through the wall of the shell in the wall thickness direction of the shell and extends out of the shell, and the extending portion defines the first air exhaust hole or the second air exhaust hole.

5. The drawer assembly of claim 4, wherein the inner surface of the housing has a recessed portion, the securing portion is disposed within the recessed portion, and a second seal is disposed between the securing portion and the recessed portion.

6. The drawer assembly of claim 4, wherein the extension defining the second suction hole passes through the sealing membrane to secure a portion of the sealing membrane between the fixed portion and an inner surface of the wall of the housing.

7. The drawer assembly of any of claims 1-6, wherein the housing comprises:

a housing body having a top opening;

the top plate is arranged at the top of the shell body and used for opening and closing the top opening, and the top plate and the shell body define the accommodating cavity under the condition that the top plate is in the position for closing the top opening.

8. The drawer assembly of claim 7, wherein the top panel is made of a light transmissive material.

9. A drawer assembly according to any of claims 1 to 6, wherein the drawer is provided with support arms and the housing is provided with rails which slidably engage the support arms.

10. The drawer assembly of claim 9, wherein the housing is provided with an electromagnet assembly and the support arm is provided with a ferrous member adapted to engage the electromagnet assembly.

11. The drawer assembly of claim 9, wherein the support arm is disposed on an exterior side of the drawer and the rail is disposed on an exterior wall of the housing.

12. The drawer assembly of any one of claims 1 to 6, wherein the drawer is provided with a back pressure device configured to achieve sealing in a closed condition and communicate the second air chamber with the outside in an open condition to vent outside air into the second air chamber.

13. The drawer assembly of claim 12, wherein the front of the drawer is provided with a rotatable catch adapted to trigger the back pressure device to switch between the closed state and the open state during rotation.

14. The drawer assembly of claim 12, wherein the drawer comprises:

a drawer body defining a storage space and having a front wall with a vent communicating with the storage space;

the face frame is arranged on the front portion of the drawer body and is in snap fit with the front wall of the drawer body, and the back pressure device is installed on the face frame and comprises a plugging portion used for opening and closing the vent hole.

15. Refrigeration device, comprising a drawer assembly according to any of claims 1 to 14.