CN214148498U

CN214148498U - Vacuum preservation box and refrigerator

Info

Publication number: CN214148498U
Application number: CN202022565951.7U
Authority: CN
Inventors: 赵振雷; 杨春
Original assignee: Hisense Shandong Refrigerator Co Ltd
Current assignee: Hisense Shandong Refrigerator Co Ltd
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2021-09-07
Anticipated expiration: 2030-11-09

Abstract

The utility model discloses a vacuum preservation box and refrigerator, preservation box includes the box body, lid and vacuum valve, be equipped with the bleeder vent on the lid, the vacuum valve includes the column body portion, the bottom of column body portion is equipped with first turn-ups portion, the top is equipped with second turn-ups portion, the column body portion is worn to locate in the bleeder vent, and with form air current clearance between the inner wall of bleeder vent, first turn-ups position is in the bottom side of bleeder vent, second turn-ups position is in the top side of bleeder vent, the internal diameter that is not greater than the bleeder vent is equallyd divide to the external diameter of first turn-ups portion and second turn-ups portion, distance between the top surface of first turn-ups portion and the bottom surface of second turn-ups portion is greater than the height of bleeder vent. Wherein, the inside of column portion is equipped with the through-hole along its axial, and the top of through-hole is equipped with the depressed part, and the depressed part is sunken towards the storing chamber. The sunken part utilizes the resilience force of self can resist certain external atmospheric pressure, improves the structural reliability of vacuum valve, avoids the vacuum valve to produce the deformation and influence the sealed effect of vacuum preservation box at long-term pressurized in-process.

Description

Vacuum preservation box and refrigerator

Technical Field

The utility model relates to a refrigeration plant technical field especially relates to a vacuum preservation box and refrigerator.

Background

In recent years, people's health consciousness is gradually improved, and the demand for food material preservation is also improved, so that the refrigerator is used as the most common household appliance for storing food materials, and the food material preservation storage becomes a technical demand to be solved urgently in the field of refrigerators. At present, different preservation technologies are introduced by various manufacturers aiming at the problem of food material preservation and storage. For example, in the vacuum preservation technology, the food deterioration condition is changed in the vacuum state. Firstly, in a vacuum environment, microorganisms and various promoting enzymes are difficult to survive, and the requirement of microorganism breeding can be met for a long time; secondly, under the vacuum state, the oxygen in the container is greatly reduced, various chemical reactions can not be completed, the food can not be oxidized, and the food can be preserved for a long time.

The food material can be stored in the refrigerator in a fresh-keeping mode through the vacuum fresh-keeping box, and the vacuum fresh-keeping box is vacuumized through the vacuumizing equipment (such as a vacuumizing connector), so that the pressure in the box reaches the pressure requirement for food material fresh-keeping storage. The existing vacuum preservation box usually comprises a box main body and a vacuum valve, the vacuum valve is arranged on the box main body, during vacuumizing, gas in the box main body flows out through a gap between the vacuum valve and the box main body, and after vacuumizing is finished, the vacuum valve is in contact sealing fit with the box main body, so that the box main body is continuously maintained at certain pressure. The sealing effect of the fresh food box is affected by various factors, such as the contact sealing performance between the vacuum valve and the box main body, the self structure of the vacuum valve, and the like.

In the subsequent pressure maintenance process of the preservation box, because the external atmospheric pressure is higher than the internal pressure of the preservation box, the external atmosphere can give an acting force towards the inside of the preservation box to the top of the vacuum valve, the vacuum valve can generate structural deformation by the acting force for a long time, the contact sealing between the vacuum valve and the box main body is influenced, and the sealing effect of the preservation box is finally influenced.

Moreover, the air holes for installing the vacuum valve on the existing box main body are usually integrally formed during injection molding of the box main body, and an injection molding part is easy to clamp a line and release the inclination, so that the matching between the vacuum valve and the air holes is influenced, and the sealing effect of the preservation box is also influenced.

The above information disclosed in this background section is only for enhancement of understanding of the background of the application and therefore it may comprise prior art that does not constitute known to a person of ordinary skill in the art.

Disclosure of Invention

To the problem pointed out in the background art, the utility model provides a vacuum preservation box and refrigerator, this vacuum preservation box have better sealed effect, improve the freshness retaining degree of eating the material storage.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme to realize:

in some embodiments of the present application, a vacuum preservation box is provided, which includes a box body, and further includes:

the cover body is buckled with the box body to form a storage cavity, and air holes are formed in the cover body;

the vacuum valve comprises a cylindrical body part, wherein a first flanging part is arranged at the bottom of the cylindrical body part, a second flanging part is arranged at the top of the cylindrical body part along the circumferential direction of the cylindrical body part, the cylindrical body part is arranged in the air vent in a penetrating way and forms an air flow gap with the inner wall of the air vent, the first flanging part is positioned at the bottom side of the air vent, the second flanging part is positioned at the top side of the air vent, the outer diameters of the first flanging part and the second flanging part are respectively larger than the inner diameter of the air vent, and the distance between the top surface of the first flanging part and the bottom surface of the second flanging part is larger than the height of the air vent;

the inner part of the column part is provided with a through hole along the axial direction, the top of the through hole is provided with a concave part, and the concave part faces the storage cavity and is concave.

In some examples of this application, the depressed part with the second turn-up portion is connected, the depressed part from the second turn-up portion is gradually to the storing chamber is sunken.

In some examples of the present application, the recess is an arc-shaped recess structure.

In some examples of the present application, the connection position of the recess portion and the second burring portion is higher than the second contact surface.

In some examples of the present application, a thickened portion is provided on the second flange portion, and the thickened portion slants upward from the outer edge of the second flange portion to the outer edge of the recessed portion.

In some examples of the present application, a connecting position of the thickened portion and the recess portion is provided with an upwardly extending ring portion.

In some examples of the present application, the top of the cover body is provided with a first contact surface, the bottom surface of the second flange portion is formed with a second contact surface for sealing contact with the first contact surface, and the first contact surface and the second contact surface have a surface roughness in a range of 1 to 6 levels.

In some examples of the present application, the vent is formed by punching the cover body through a milling cutter.

The utility model also provides a refrigerator, include as above the vacuum preservation box.

In some examples of this application, the refrigerator includes a door body and evacuation joint, the vacuum preservation box is located on the door body, the evacuation joint be used for right the vacuum preservation box carries out the evacuation.

Compared with the prior art, the utility model discloses an advantage is with positive effect:

in the vacuum preservation box disclosed in the application, the vacuum valve includes that cylinder portion and part locate the first turn-ups portion and the second turn-ups portion at both ends about the cylinder portion, the cylinder portion wears to locate in the venthole on the lid, first turn-ups portion and second turn-ups portion can restrict the upper and lower displacement of vacuum valve, be equipped with the depressed part that orientation storing chamber is sunken in the second turn-ups portion, certain external atmospheric pressure can be resisted to the rebound force that the depressed part utilized self, thereby improve the structural reliability of vacuum valve, avoid the vacuum valve to produce deformation and influence the sealed effect of vacuum preservation box long-term pressurized in-process. And under the effect of depressed part, the inside horizontal component of structure that the vacuum valve receives can make second turn-ups portion and the top of lid laminate more to this further improves sealed effect.

Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when read in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural view of a refrigerator according to an embodiment;

FIG. 2 is a schematic structural diagram of a vacuum crisper according to an embodiment;

FIG. 3 is a cross-sectional view of a vacuum crisper, according to an embodiment;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is a schematic structural diagram of a vacuum valve according to an embodiment;

FIG. 6 is a schematic view of the structure of FIG. 5 viewed from the bottom side;

FIG. 7 is a force-bearing configuration diagram of a vacuum valve according to an embodiment;

FIG. 8 is a schematic structural diagram of a cover according to an embodiment;

fig. 9 is a schematic view of the structure of fig. 8 as viewed from the bottom side.

Reference numerals:

100-refrigerator, 110-box, 120-door, 130-shelf and 140-vacuumizing joint;

200-vacuum preservation box;

210-a cartridge;

220-cover, 221-vacuum interface, 222-vent, 223-circumferential wall, 224-first contact, 225-air gap, 226-vent;

230-vacuum valve, 231-column part, 232-first flanging part, 233-second flanging part, 234-second contact surface, 235-through hole, 236-recess part, 237-thickening part, 238-ring part;

240-storage chamber.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to 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 meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

[ refrigerator ]

Fig. 1 is a perspective view of an embodiment of a refrigerator of the present application, and a refrigerator 100 of the present embodiment has an approximately rectangular parallelepiped shape. The refrigerator 100 includes a cabinet 110 and a door 120 hinged to the cabinet 110, and a plurality of refrigerating chambers and/or freezing chambers are defined by the cabinet 110 and the door 120.

The refrigerator 100 in this application is a refrigerator with a vacuum refreshing function, and the vacuum refreshing function is realized by the vacuum refreshing box 200.

The storage cavity 240 is formed in the vacuum preservation box 200, the vacuum preservation box 200 is detachably connected with the door body 120 (particularly, a door liner), the vacuum preservation box 200 can be conveniently taken down from the door body 120, and the use convenience of the vacuum preservation box 200 is improved.

Referring to fig. 2 and 3, the vacuum preservation box 200 includes a box body 210 and a cover body 220, wherein a vacuum-pumping interface 221 is disposed on the cover body 220, and the vacuum-pumping interface 221 is used for cooperating with a vacuum-pumping assembly so as to facilitate the vacuum-pumping assembly to communicate with the storage cavity 240 and to vacuum the storage cavity 240.

The vacuum-pumping assembly can make the interior of the vacuum preservation box 200 reach a vacuum state, wherein the vacuum state is not an absolute vacuum state but a low-pressure state, so as to improve the preservation of articles stored in the vacuum preservation box 200. In this embodiment, the vacuum inside the vacuum refreshing box 200 is 0.6-0.9 mpa.

The vacuumizing assembly comprises a vacuum pump, a vacuumizing pipeline and a vacuumizing connector 140, the vacuumizing pipeline is used for communicating the vacuum pump with the vacuumizing connector 140, the vacuumizing connector 140 is detachably connected with a vacuumizing interface part 221, and the vacuum pump provides vacuumizing power for the whole vacuumizing assembly.

The vacuumizing connector 140 is arranged on the door body 120 in a turning manner, specifically on the inner container of the door body, and the vacuumizing connector 140 can be communicated with the storage cavity 240.

When the storage cavity 240 needs to be vacuumized, the vacuumizing connector 140 is communicated with the storage cavity 240, that is, the vacuumizing connector 140 is connected with the vacuumizing interface 221, at this time, the vacuum pump is started, and gas in the storage cavity 240 can be exhausted to the vacuum pump through the vacuumizing connector 140 and the vacuumizing pipeline, so that low pressure in the storage cavity 240 is realized.

When the vacuum preservation box 200 needs to be taken down from the door 120, the vacuuming connector 140 is turned over to be separated from the vacuum preservation box 200, that is, the vacuuming connector 140 is separated from the vacuuming interface part 221.

On the door body inner bag was located to evacuation joint 140 upset ground in this application, according to whether need carry out the evacuation to vacuum preservation box 200 and with evacuation joint 140 upwards upset or upset downwards can, the simple operation, convenient to use.

In some embodiments of the present application, referring to fig. 1, the shelf 130 is disposed on the inner container of the door, and the vacuum preservation box 200 is directly placed in the shelf 130, so as to detachably connect the vacuum preservation box 200 and the inner container of the door. When the vacuum preservation box 200 needs to be taken out of the refrigerator 100, the vacuum preservation box 200 can be taken out of the shelf 130 directly.

[ vacuum preservation case ]

Referring to fig. 2 to 4, the vacuum refreshing box 200 of the present application includes a box body 210, a cover 220, and a vacuum valve 230. The upper portion of the case 210 is opened, and the cover 220 is detachably disposed on the top of the case 210. The box body 210 and the cover 220 are fastened to form a storage cavity 240.

The cover 220 is provided with a vacuum interface 221, and the vacuum interface 221 is provided with an air hole 222. The airing hole 222 is defined by a circumferential wall 223 having a certain height.

Referring to fig. 4 to 6, the vacuum valve 230 includes a cylindrical portion 231. The bottom of the column 231 is provided with a first flanging part 232, the top of the column 231 is provided with a second flanging part 233 along the circumferential direction, and the first flanging part 232 and the second flanging part 233 horizontally extend towards the outer side of the column 231 respectively.

The outer diameter of the cylindrical portion 231 is smaller than the inner diameter of the air hole 222, and when the cylindrical portion 231 is inserted into the air hole 222, an air flow gap 225 is formed between the cylindrical portion 231 and the inner wall of the air hole 222.

The first flanging part 232 is located at the bottom side of the vent hole 222, the second flanging part 233 is located at the top side of the vent hole 222, and the outer diameters of the first flanging part 232 and the second flanging part 233 are respectively greater than the inner diameter of the vent hole 222, so that the vacuum valve 230 is equivalently clamped at the vent hole 222, the vacuum valve 230 is limited in the up-down direction, and the vacuum valve 230 is prevented from falling out of the vent hole 222.

The distance D1 between the top surface of the first burring 232 and the bottom surface of the second burring 233 is greater than the height D2 of the airing hole 222.

Referring to fig. 9, a plurality of vent holes 226 are formed at intervals on a bottom surface of the circumferential wall 223 surrounding the vent hole 222.

When the vacuum valve 230 is vacuumized or depressurized, the vacuum valve 230 is forced upward, at this time, the top surface of the first flanging part 232 abuts against the bottom end surface of the circumferential wall 223 enclosing the vent hole 222, the bottom surface of the second flanging part 233 is separated from the top surface of the cover 220, and the gas in the storage cavity 240 is discharged through the vent 226, the gas flow gap 225, and the gap between the second flanging part 233 and the cover 220.

In the process of maintaining the low pressure of the vacuum preservation box 200, that is, the pressure in the storage cavity 240 is lower than the external atmospheric pressure, at this time, the vacuum valve 230 is forced downward, and the bottom surface of the second flanging part 233 contacts with the top surface of the cover 220 to form a sealing surface, so that the vacuum preservation box 200 is sealed.

In this application, referring to fig. 4, the inside of the column 231 is provided with a through hole 235 along the axial direction thereof, the top of the through hole 235 is provided with a recessed portion 236, and the recessed portion 236 is recessed toward the storage cavity 240.

Referring to fig. 7, a solid line represents a structural internal force to which the vacuum valve 230 is subjected, and a dotted line represents a force applied to the vacuum valve 230 by the external atmosphere. During the low pressure maintaining process of the vacuum refreshing box 200, since the pressure in the storage chamber 240 is lower than the pressure of the outside atmosphere, the outside atmosphere will give the top of the column portion 231 a force toward the inside of the storage chamber 240, and the force will directly act on the recess 236. Since the vacuum valve 230 is generally made of a material such as silicone, rubber, or polyurethane, the vacuum valve 230 itself has a certain elasticity.

The effect of depressed part 236 in this application lies in, and certain external atmospheric pressure can be resisted to depressed part 236 utilization self resilience force to improve vacuum valve 230's structural reliability, avoid vacuum valve 230 to produce the deformation and influence the sealed effect of vacuum preservation box 200 in the long-term pressurized in-process.

As can be further seen from fig. 7, the internal structural force applied to the vacuum valve 230 by the recess 236 includes a horizontal component, which makes the second flange 233 more closely fit to the top of the cover 220, thereby further improving the sealing effect.

The through-hole 235 also has the effect of: when the vacuum valve 230 is inserted into the air hole 222, the outer diameter of the first flanging part 232 is larger than the inner diameter of the air hole 222, and the through hole 235 enables the column part 231 to be deformed by being stressed and contracted, so that the first flanging part 232 can be conveniently inserted into the bottom side of the air hole 222, and the vacuum valve 230 can be conveniently installed.

In some embodiments of the present application, referring to fig. 4 to 6, the recessed portion 236 is connected to the second flanging portion 233, and equivalently, the recessed portion 236 is disposed at the top of the column portion 231, and the recessed portion 236 is gradually recessed from the second flanging portion 233 to the storage cavity 240, so as to facilitate processing and make the force applied to the recessed portion 236 more uniform.

As a preferred embodiment, the recess 236 is an arc-shaped recess structure.

In some embodiments of the present application, the connection position of the recess 236 and the second burring part 233 is higher than the second contact surface 224 (i.e., the bottom surface of the second burring part 233). As can be seen from the force analysis of fig. 7, at this time, the horizontal component of the internal structure applied to the vacuum valve 230 is more effectively applied to the second flanging portion 233, so that the second flanging portion 233 can be more attached to the top surface of the cover 220, and the preservation effect is improved.

In some embodiments of the present application, a thickened portion 237 is provided on the second flanging portion 233, and the thickened portion 237 is obliquely and upwardly transited from the outer edge of the second flanging portion 233 to the outer edge of the recess 236. The thickened portion 237 has the effect that the thickened portion 237 can improve the structural strength, prevent the vacuum valve 230 from shrinking inward under the action of lateral atmospheric pressure, and contribute to improving the sealing effect.

In some embodiments of the present application, the connecting position of the thickened portion 237 and the recessed portion 236 is provided with a ring portion 238 extending upward, when the pressure is released, the ring portion 238 acts as a handle, and the hand acts on the ring portion 238 and pulls upward, so that the sealing of the vacuum valve 230 on the fresh food box can be released.

In some embodiments, the top of the cover 220 is provided with a first contact surface 224. specifically, referring to FIG. 8, the first contact surface 224 is disposed in the vacuum interface 221, and the first contact surface 224 abuts against the top of the vent hole 222. Referring to fig. 6, the second contact surface 234 for sealing contact with the first contact surface 224 is formed on the bottom surface of the second burring 233, and the surface roughness of the first contact surface 2224 and the second contact surface 234 ranges from 1 to 6 steps.

The surface roughness of the first contact surface 224 and the second contact surface 234 is reduced, so that the first contact surface 224 and the second contact surface 234 are close to a mirror surface state, and the sealing effect of the preservation box can be greatly improved through the mirror surface contact state between the first contact surface 224 and the second contact surface 234.

In some embodiments, the vent holes 222 are formed in the cover 220 by milling. Since the cover 220 is generally an injection molded part, the injection molded part is easy to generate line clamping and demoulding inclination, which affects the cooperation between the vacuum valve 230 and the air holes 222, thereby affecting the sealing effect of the preservation box. The air holes 222 are formed by punching through a milling cutter, so that the defects can be avoided.

In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a vacuum preservation box, includes the box body, its characterized in that still includes:

2. The vacuum refreshing box according to claim 1,

the concave part is connected with the second flanging part, and the concave part is gradually concave towards the storage cavity from the second flanging part.

3. The vacuum refreshing box according to claim 2,

the depressed part is arc depressed structure.

4. The vacuum refreshing box according to claim 2,

and a thickened part is arranged on the second flanging part, and the thickened part obliquely and obliquely inclines upwards and transits from the outer edge of the second flanging part to the outer edge of the recessed part.

5. The vacuum refreshing box according to claim 4,

and a ring part extending upwards is arranged at the connecting position of the thickened part and the depressed part.

6. Vacuum refreshing box according to any of claims 1 to 5,

the top of the cover body is provided with a first contact surface, a second contact surface used for being in sealing contact with the first contact surface is formed on the bottom surface of the second flanging part, and the surface roughness of the first contact surface and the second contact surface ranges from 1 level to 6 levels.

7. The vacuum refreshing box according to claim 6,

the connecting position of the concave part and the second flanging part is higher than the second contact surface.

8. Vacuum refreshing box according to any of claims 1 to 5,

the air holes are formed by punching the cover body through a milling cutter.

9. A refrigerator comprising the vacuum refreshing box according to any one of claims 1 to 8.

10. The refrigerator according to claim 9, wherein the refrigerator comprises a door body and a vacuumizing connector, the vacuum preservation box is arranged on the door body, and the vacuumizing connector is used for vacuumizing the vacuum preservation box.