CN114719520A

CN114719520A - Refrigerator

Info

Publication number: CN114719520A
Application number: CN202110003124.5A
Authority: CN
Inventors: 许锦潮; 杨大海; 周晓东; 朱雪峰; 胡哲
Original assignee: Hisense Ronshen Guangdong Refrigerator Co Ltd
Current assignee: Hisense Ronshen Guangdong Refrigerator Co Ltd
Priority date: 2021-01-04
Filing date: 2021-01-04
Publication date: 2022-07-08
Anticipated expiration: 2041-01-04
Also published as: WO2022142513A1; CN114719520B

Abstract

The invention provides a refrigerator, and belongs to the technical field of household appliances. The refrigerator includes a cabinet having a storage chamber; a door for opening and closing the storage chamber; n vacuum containers which are respectively used for storing different types of food materials, wherein N is an integer larger than 1; a negative pressure device for making the vacuum container form vacuum; and the electronic air valve is connected with the negative pressure device and is respectively connected to the vacuum container through N vent pipes, so that N air passages are formed between the negative pressure device and the vacuum container, and the electronic air valve can close/open any air passage. This refrigerator can realize the vacuum storage of multiple different grade type edible material owing to have a plurality of vacuum vessel, connects a plurality of vacuum vessel in parallel in a gas circuit system and makes the user can change the storage edible material wantonly between vacuum vessel as required in addition through the electron pneumatic valve, has improved user's use and has experienced.

Description

Refrigerator

Technical Field

The invention relates to the technical field of household appliances, in particular to a refrigerator.

Background

In the related technology, the principle of vacuum preservation of a refrigerator is that a micro vacuum pump is used for pumping a part of gas in a closed food storage space (drawer/box), partial vacuum is realized in the storage space, the internal gas partial pressure is reduced, the reduction of oxygen concentration is achieved, a low-oxygen environment is realized, and the purpose of prolonging the storage period of food is further achieved.

However, the vacuum drawer in the refrigerator is usually a single drawer, and generally has a choice of storing meat and fruits and vegetables at different gears, but because the storage environments required for storing the meat and the fruits and vegetables are different, the vacuum drawer can only store the corresponding food materials in the current gear state, and the meat and the fruits and vegetables cannot be simultaneously stored in a vacuum manner.

Disclosure of Invention

The present invention solves at least one of the technical problems of the related art to some extent.

Therefore, the present disclosure is directed to a refrigerator, which has a plurality of vacuum containers to achieve vacuum storage of different types of food materials, and the plurality of vacuum containers are connected in parallel to one gas path system through an electronic gas valve, so that a user can randomly replace and store food materials among the vacuum containers according to the use requirement, thereby improving the use experience of the user.

The refrigerator according to the present disclosure includes: a case having a storage chamber; a door for opening and closing the storage chamber; n vacuum containers which are respectively used for storing different types of food materials, wherein N is an integer larger than 1; a negative pressure device for making the vacuum container form vacuum; and the electronic air valve is connected with the negative pressure device and is respectively connected to the vacuum container through N vent pipes, so that N air passages are formed between the negative pressure device and the vacuum container, and the electronic air valve can close/open any air passage.

According to an embodiment of the refrigerator of the present disclosure, the electronic gas valve includes: a valve housing forming a main body appearance of the electronic gas valve; the air pumping channel is formed in the valve shell and communicated to the negative pressure device; n branch channels are formed in the valve shell and are provided with inner ends communicated with the air suction channel and outer ends connected with the vent pipes; the N blocking pieces are connected in a sliding way in a one-to-one correspondence manner with the branch channels so as to block or open the branch channels; and the driving device is used for driving the plugging piece to slide.

According to an embodiment of the refrigerator of the present disclosure, the driving apparatus includes: a motor for outputting power; the cam is connected with the motor and driven by the motor to rotate, and the periphery of the cam is provided with a convex part which can be abutted against the blocking piece; when the convex part is staggered with the blocking piece, the blocking piece opens the branch channel; when the convex part is opposite to the blocking piece, the blocking piece can be pushed to slide towards the branch channel so as to block the branch channel.

According to an embodiment of the refrigerator of the present disclosure, a sliding rail is provided in the valve housing; the blocking piece comprises: the sliding rod slides relative to the sliding rail, and one end, close to the cam, of the sliding rod is provided with a first blocking part; the spring is sleeved on the sliding rod and positioned between the first blocking part and the sliding rail; the slide rod slides towards the branch channel direction under the driving force of the driving device, and the spring is compressed; when the driving force of the driving device borne by the sliding rod is reduced or disappears, the spring resets and pushes the sliding rod to slide towards the direction far away from the branch channel.

According to the embodiment of the refrigerator disclosed by the disclosure, one end, far away from the cam, of the sliding rod is provided with a second blocking part, and the second blocking part can abut against the sliding rail to limit the sliding distance of the sliding rod when the sliding rod opens the branch channel.

According to the embodiment of the refrigerator disclosed by the disclosure, the second blocking part or/and the branch channel is/are provided with a sealing material so as to ensure the sealing property when the branch channel is blocked.

According to an embodiment of the refrigerator of the present disclosure, the first blocking portion and the second blocking portion are both hemispherical.

According to the embodiment of the refrigerator, a main trunk cavity is formed in the valve shell and located at one end of the valve shell, the air exhaust channel and the branch channel are communicated with the main trunk cavity and located at the other end of the valve shell, and the blocking piece and the driving device are arranged in the main trunk cavity.

According to an embodiment of the refrigerator of the present disclosure, the vacuum container includes: a housing having an opening formed at a front portion thereof, the housing being provided with a receiving space defined therein to receive an object to be stored, the housing being installed within the storage compartment; a drawer to seal an interior of the housing; and the air outlet penetrates through the wall of the shell and is communicated with the accommodating space, and the air outlet is connected with the vent pipe.

According to an embodiment of the refrigerator of the present disclosure, the electronic air valve and the negative pressure gauge are connected on a wall of the storage compartment or on an outer wall of the case.

Advantageous effects

According to the refrigerator, the plurality of vacuum containers are arranged, so that vacuum storage of various different food materials can be realized, and the problem that only a single vacuum container in the refrigerator in the prior art cannot simultaneously store different types of food materials in vacuum is avoided.

According to the refrigerator, the plurality of vacuum containers are connected in parallel in the air path system through the electronic air valve, so that linkage control can be performed on the air path on-off of the plurality of vacuum containers, a user can freely change food storage among the vacuum containers according to use requirements, and the use experience of the user is improved.

According to the refrigerator, the target branch channel and the air exhaust channel can be communicated and closed through the relative state of the cam and the plugging piece only by controlling the rotating angle of the motor, and the refrigerator has the advantage of simple structure.

According to the refrigerator, the sliding of the blocking piece of the electronic air valve of the refrigerator is mainly realized through a mechanical structure, and compared with an electric control structure, the refrigerator is low in failure rate and high in reliability.

According to the refrigerator, the branch channel and the air exhaust channel are concentrated on the electronic air valve, the size of the electronic air valve can be reduced, and the concentrated arrangement of the vent pipe and the air exhaust pipe is facilitated.

Drawings

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

Fig. 1 is a front view of a door of a refrigerator according to an embodiment of the present disclosure in an open state;

fig. 2 is a perspective view of a vacuum container of a refrigerator according to an embodiment of the present disclosure;

fig. 3 is a perspective view of two vacuum vessels of a refrigerator according to an embodiment of the present disclosure;

FIG. 4 is an exploded view of FIG. 3;

5-7 are cross-sectional views of an electronic gas valve of a refrigerator according to an embodiment of the present disclosure in various operating states;

in the above figures: 1. a refrigerator; 10. a box body; 21. an upper storage chamber; 22. a lower storage chamber; 30. a door; 100. a vacuum vessel; 101. a first vacuum vessel; 102. a second vacuum vessel; 110. a housing; 111. an exhaust port; 112. a first exhaust port; 113. a second exhaust port; 120. a drawer; 130. a negative pressure device; 141. a first vent pipe; 142. a second vent pipe; 150. an electronic gas valve; 151. a valve housing; 154. an air extraction channel; 156. a first branch channel; 157. a second branch channel; 158. a trunk cavity; 159. a slide rail; 160. a first blocking piece; 161. a second blocking member; 170. a slide bar; 171. a first blocking part; 172. a second blocking part; 180. a spring; 191. a cam; 192. a convex portion; 190. and an air exhaust pipe.

Detailed Description

The invention is described in detail below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

When the refrigerator is used, the side facing a user is defined as the front side, the opposite side is defined as the rear side, and the description of the front-back relation between the door body and the handle is based on the fact that the door body is in a closed state.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

Referring to fig. 1, a refrigerator 1 according to one embodiment of the present disclosure includes: a cabinet 10 having a storage compartment defined therein, a cool air supply device for cooling the storage compartment; and a door 30 for opening and closing the storage chamber.

The cool air supply device performs heat exchange with the outside to cool the storage compartment. The cool air supply device may be constructed of a refrigeration cycle device including an evaporator, a compressor, a condenser, and an expansion device, and circulates a refrigerant in order of a compressor-a condenser-an expansion device-an evaporator-a compressor to cool the storage chamber.

The evaporator may be disposed in contact with an outer wall of the storage compartment to directly cool the storage compartment. The cool air supply device may further include a circulation fan to circulate air in the storage chamber through the evaporator and the storage chamber.

The storage chamber is partitioned into an upper storage chamber 21 and a lower storage chamber 22 by a lateral partition plate. The upper storage chamber 21 may serve as a refrigerating chamber for storing food in a refrigerating mode, and the lower storage chamber 22 may serve as a freezing chamber for storing food in a freezing mode.

The door 30 may be hinged at the front end of the cabinet 10 to rotate to open or store the compartment.

In addition, the refrigerator 1 may further include a vacuum container 100, and a partial vacuum may be formed in the vacuum container 100 to extend a storage period of food.

The vacuum vessel 100 may be installed in the storage room such that the vacuum vessel 100 can be drawn out of the storage room. Alternatively, the vacuum vessel 100 may be fixedly installed in the storage room.

Referring to fig. 2, the vacuum vessel 100 may include a housing 110 and a drawer 120.

The case 110 defines an external appearance of the vacuum vessel 100 and may be fixed in the storage chamber. A receiving space for storing objects to be stored is defined in the case 110, and an opening is provided at a front end of the case 110. The drawer 120 is inserted into or withdrawn from the receiving space through the opening 112, and the drawer 120 forms a seal with the housing 110 when it is completely inserted into the housing 110.

The refrigerator 1 may include a negative pressure applicator 130, and the negative pressure applicator 130 is connected to the case 10 for generating a negative pressure (over-vacuum) in the case 110, for example, the negative pressure applicator 130 may be a vacuum pump.

Specifically, the negative pressure device 130 is connected to the inside of the housing 110 through the suction pipe 190, and when the drawer 120 is inserted into the housing 110, the negative pressure device 130 can suck air out of the housing 110 to reduce the pressure inside the housing 110.

More specifically, an exhaust port 111 communicating with the receiving space is provided on an outer wall of the housing 110, and the exhaust pipe 190 is connected to the exhaust port 111.

Because the storage environments required by different types of food materials are different, the vacuum container 100 can only store the corresponding food materials in the current gear, and different types of food materials cannot be stored in the same vacuum container 100, the vacuum container 100 in the present disclosure may have N (N is an integer greater than 1), each vacuum container 100 may be used for storing one type of food material, for example, when N is 2, one vacuum container 100 may be used for storing fruit and vegetable food materials, and another vacuum container 100 may be used for storing meat food materials, so that the problem of vacuum storage of multiple types of food materials is solved.

For convenience of description, the present disclosure is described in detail below by taking N ═ 2 as an example:

referring to fig. 3 and 4, two vacuum vessels 100, i.e., a first vacuum vessel 101 and a second vacuum vessel 102, are disposed side by side in the storage chamber in the lateral direction. Alternatively, the two vacuum vessels 100 may also be placed side by side vertically in the storage compartment.

The refrigerator 1 may include an electronic gas valve 150, the electronic gas valve 150 is connected to the negative pressure means 130, and the electronic gas valve 150 is respectively connected to the vacuum vessel 100 through a vent pipe.

Specifically, the negative pressure device 130 may be connected to the electronic valve 150 through the suction pipe 190; the first vacuum container 101 has a first exhaust port 112, and the second vacuum container 102 has a second exhaust port 113; the first vent pipe 141 connects the first vacuum vessel 101 and the electronic gas valve 150 through the first exhaust port 112, and the second vent pipe 142 connects the second vacuum vessel 102 and the electronic gas valve 150 through the second exhaust port 113, thereby forming a gas path system of the vacuum vessel 100. The first vacuum vessel 101 and the second vacuum vessel 102 are connected in parallel in the gas circuit system.

When the negative pressure device 130 stops working, the gas path system forms a closed space to prevent gas from entering the vacuum container 100; when the negative pressure device 130 performs the pumping operation, the corresponding vacuum container 100 is pumped and the gas is discharged out of the vacuum container 100 according to the shift state of the electronic gas valve 150.

Specifically, the electronic gas valve 150 can selectively communicate the negative pressure device 130 with the first vacuum vessel 101 or/and with the second vacuum vessel 102. That is, the electronic gas valve 150 may realize the communication of the negative pressure device 130 only with the first vacuum container 101, the communication of the negative pressure device 130 only with the second vacuum container 102, and the communication of the negative pressure device 130 with both the first vacuum container 101 and the second vacuum container 102.

Therefore, the refrigerator 1 can select the two vacuum containers 100 according to the use requirement from four storage working conditions of vacuum + meat, vacuum + fruit and vegetable, non-vacuum + meat and non-vacuum + fruit and vegetable through the gear state of the electronic air valve 150. The electronic air valve 150 is used for linkage, so that the two vacuum containers 100 can be switched between meat storage and fruit and vegetable storage according to the use requirements of users, and different storage requirements of the users are met.

Thus, the linkage control and the selection of four working conditions between the negative pressure device 130 and the two vacuum containers 100 can be realized only through the electronic gas valve 150, and the vacuum container system has the advantages of simple structure and multiple functions.

Referring to fig. 5-7, an electronic gas valve 150 according to one embodiment of the present disclosure may include: a valve housing 151, a closure and a drive.

The valve housing 151 substantially forms the main appearance of the electronic gas valve 150, and a suction passage 154 and a branch passage are formed in the valve housing 151, and the suction passage 154 and the branch passage communicate with each other inside the valve housing 151.

The branch passage has an inner end located inside the valve housing 151 and an outer end extending outside the valve housing 151, the outer end of the branch passage is connected to the vent pipe, and the outer end of the pumping passage 154 is connected to the pumping pipe 190; the communication between the branch channel inside the electronic gas valve 150 and the pumping channel 155 realizes the communication between the external vacuum pressure device 130 and the vacuum container 100, so as to evacuate the vacuum container 100.

Specifically, the branch passage includes a first branch passage 156 and a second branch passage 157, the first breather pipe 141 is connected to an outer end 156b of the first branch passage 156, and the second breather pipe 142 is connected to an outer end 157b of the second branch passage 157.

In some embodiments, a main trunk cavity 158 is also formed within the valve housing 151, the main trunk cavity 158 being located at one end of the valve housing 151, and the bleed air passage 154 and the branch passages being located at the other end; the pumping channel 154 communicates with the branch channels through the trunk cavity 158. Thus, the outer ends of the air exhaust channel 154 and the branch channels are concentrated, so that the connection positions of the vent pipe and the air exhaust pipe 190 on the electronic air valve 150 are concentrated, the problem that the pipelines occupy space due to scattered connection is avoided, and the installation space and the arrangement of the pipelines are saved.

The blocking member is disposed in the trunk chamber 158 and may include a first blocking member 160 and a second blocking member 161, the first blocking member 160 being slidably coupled to the inner end 156a of the first branch passage 156 so that the inner end 156a can be blocked or unblocked; the second blocking piece 161 is slidably coupled corresponding to the inner end 157a of the second branch passage 157 so that the inner end 157a can be blocked or unblocked.

The first block-out member 160 blocks the inner end 156a when slid in a direction toward the inner end 156a, thereby disconnecting the evacuation passageway 154 from the first branch passageway 156, and opens the inner end 156a when the first block-out member 160 is slid in a direction away from the inner end 156a, thereby reconnecting the evacuation passageway 154 to the first branch passageway 156. The principle of the second blocking member 161 for blocking and opening the second branch passage 157 is the same as that of the first blocking member 160, and will not be described herein.

The blocking member may include a sliding bar 170 and a spring 180, the sliding bar 170 slides under the action of the driving device, and the spring 180 maintains the sliding bar 170 to be reset without external force.

A slide rail 159 is arranged in the trunk cavity 158, and the slide bar 170 slides relative to the slide rail 159.

In the sliding direction, the length of the sliding bar 170 is greater than that of the sliding rail 159; the slide bar 160 has a first stopper 171 and a second stopper 172 at both ends in the longitudinal direction, the first stopper 171 being close to the driving device, and the second stopper 172 being close to the branch passage.

The spring 180 is sleeved on the sliding rod 170 and clamped between the sliding rail 159 and the first blocking part 171; when the driving device pushes the sliding bar 170, the sliding bar 170 compresses the spring 180 and slides towards the branch channel direction, so as to block the branch channel through the second blocking part 172; when the pushing force of the driving device is reduced or even eliminated, the sliding rod 170 is driven by the spring 180 to reset and open the branch channel, and when the second stopping part 172 abuts against the sliding rail 159, the sliding rod 170 stops sliding.

In some embodiments, the first blocking portion 171 is substantially hemispherical, so that the contact area between the first blocking portion 171 and the driving device can be reduced, and the contact wear during long-term use can be reduced; the second blocking portion 172 is substantially hemispherical, so that the sealing property of the second blocking portion 172 when blocking the branch passage can be ensured.

In addition, a sealing material such as rubber is arranged at the second stopper 172 or/and the inner end of the branch channel, so that the sealing performance of the sliding rod 170 for sealing the branch channel can be further improved, and the gas circulation can be isolated.

A drive means is connected within the trunk lumen 158 for driving the closure member to slide.

Specifically, the driving means may include a motor (not shown in the drawings) for outputting power, and a cam 191 connected to the motor and driven by the motor to rotate.

The periphery of the cam 191 is provided with a convex part 192 protruding outwards, and when the convex part 192 abuts against the sliding rod 170, the sliding rod 172 is pushed by the convex part 192 to slide towards the branch channel direction; when the convex part 192 is staggered with the sliding bar 170, the driving force applied to the sliding bar 170 is reduced or disappears, and the spring 180 is reset to drive the sliding bar 170 to slide in the opposite direction.

Referring to fig. 5 in particular, when the first vacuum container 101 is the target of vacuum pumping, the gear input by the motor is the first branch channel 156, the convex part 192 of the cam 191 stops at the position corresponding to the second blocking member 161 and pushes the sliding rod 170 to block the second branch channel 157, so as to block the gas flow of the second branch channel 157. While the first blocking member 160 is staggered from the projection 192 and is not acted upon by the cam 191, the return spring force of the spring 180 holds the slide bar 170 in a position spaced apart from the first branch passage 156. In this state, the first branch channel 156 of the electronic valve 150 is a passage, and the vacuum pump 130 can pump the first vacuum container 101 through the electronic valve 150 to form a negative pressure.

Referring specifically to fig. 6, when the object of the vacuum pumping is the second vacuum container 102 and the motor input gear is the second branch channel 157, the convex portion 192 of the cam 191 stops at the position corresponding to the first blocking member 160 and pushes the sliding rod 170 to block the first branch channel 156, thereby blocking the air flow of the first branch channel 156. While the second blocking piece 161 is staggered from the convex portion 192 without being acted on by the cam 191, the return elastic force of the spring 180 fixes the slide bar 170 at a position separated from the second branch passage 157. In this state, the second branch channel 157 of the electronic air valve 150 is a passage, and the negative pressure device 130 can pump air to the second vacuum container 102 through the electronic air valve 150 to form negative pressure.

When the first vacuum container 101 and the second vacuum container 102 are used as the vacuum object, the input gear of the motor 190 is full-on, the convex portions 192 of the cam 191 are staggered with the first blocking piece 160 and the second blocking piece 161, the two sliding rods 170 are not acted by the cam 191 at the moment, and the return elastic force of the spring 180 fixes the sliding rods 170 at the positions separated from the first branch channel 156 and the second branch channel 157. In this state, the first branch channel 156 and the second branch channel 157 of the electronic valve 150 are both open, and the vacuum pump 130 can pump the first vacuum container 101 and the second vacuum container 102 through the electronic valve 150 to form a negative pressure.

In addition, the negative pressure device 130 and the electronic air valve 150 may be installed on an outer wall of the housing 110, or on a wall of the storage room; the first and

second vacuum containers

101 and 102 may be both provided at the upper storage chamber 21 of the refrigerator, or both provided at the lower storage chamber 22, or one provided at the upper storage chamber 21 and the other provided at the lower storage chamber 22.

The vacuum container 100 is placed in the same storage chamber, and the pipeline system is centralized, so that the length of the pipeline can be reduced; the vacuum container 101 is arranged in the upper storage chamber 21 and the lower storage chamber 22 separately, so that a user can conveniently store fruits and vegetables in the vacuum container 100 on the upper part, meat is stored in the vacuum container 100 on the lower part, the food storage space is consistent with a food storage partition with the common function of a refrigerator, and the food classification management of the user on the refrigerator is facilitated.

Those skilled in the art will appreciate that for embodiments where N > 2, an analogy may be made on the basis of N-2:

the vacuum container 100 has N, each of which is communicated with the electronic gas valve 150 through a vent pipe;

n branch channels and N plugging pieces corresponding to the N branch channels are arranged in the electronic air valve 150; n-1 lobes 192 are provided on the cam 191.

When the N-1 convex parts 192 respectively correspond to the front N-1 blocking parts, the Nth blocking part is not acted by the cam 191, the Nth branch channel is a passage, and the negative pressure device 130 can perform air suction on the Nth vacuum container through the electronic air valve 150 to form negative pressure; when the convex parts 192 of the cam 191 are staggered with the N blocking parts, the N branch channels in the electronic air valve 150 are all passages, and the negative pressure device 130 can simultaneously pump air to the N vacuum containers through the electronic air valve 150 to form negative pressure.

In addition, alternatively, N driving devices may be further disposed in the electronic valve 150, each driving device corresponds to one blocking piece for driving, and each branch channel is controlled by one driving device independently, so that the purpose of the present disclosure can still be achieved.

According to the refrigerator, the plurality of vacuum containers 100 are arranged, so that vacuum preservation storage of various different types of food materials can be realized, and the problem that only one single vacuum container 100 in the refrigerator in the prior art cannot simultaneously store different types of food materials in vacuum is avoided.

According to the present disclosure, the refrigerator connects the plurality of vacuum containers 100 in parallel in one air path system through the electronic air valve 150, so that the air path on-off of the plurality of vacuum containers 100 can be controlled in a linkage manner, a user can randomly change and store food materials among the vacuum containers 100 according to use requirements, and the use experience of the user is improved.

According to the present disclosure, the refrigerator can achieve the communication and closing of the target branch passage and the pumping passage 154 through the relative state of the cam 191 and the blocking member only by controlling the rotation angle of the motor 190, and has an advantage of simple structure.

According to the refrigerator, the sliding of the blocking piece is mainly realized through a mechanical structure, and compared with an electric control structure, the refrigerator is low in failure rate and high in reliability.

According to the present disclosure, the branch channel and the pumping channel 154 of the refrigerator are disposed at one end of the electronic air valve 150, so that the structure is concentrated, the volume of the electronic air valve 150 can be reduced, and the concentrated arrangement of the vent pipe and the pumping pipe 190 is facilitated.

In the description of the present invention, 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 of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

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; 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.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A refrigerator, characterized by comprising:

a case having a storage chamber;

a door for opening and closing the storage chamber;

n vacuum containers which are respectively used for storing different types of food materials, wherein N is an integer larger than 1;

a negative pressure device for making the vacuum container form vacuum; and

and the electronic air valve is connected with the negative pressure device and is respectively connected to the vacuum container through N vent pipes, so that N air passages are formed between the negative pressure device and the vacuum container, and any air passage can be closed/opened by the electronic air valve.

2. The refrigerator of claim 1 wherein the electronic gas valve comprises:

a valve housing forming a main body appearance of the electronic gas valve;

the air pumping channel is formed in the valve shell and communicated to the negative pressure device;

n branch channels are formed in the valve shell and are provided with inner ends communicated with the air suction channel and outer ends connected with the vent pipes;

the N blocking pieces are connected in a sliding way in a one-to-one correspondence manner with the branch channels so as to block or open the branch channels; and

and the driving device is used for driving the plugging piece to slide.

3. The refrigerator according to claim 2, wherein the driving means comprises:

a motor for outputting power; and

a cam connected with the motor and driven by the motor to rotate, wherein the periphery of the cam is provided with a convex part which can be abutted against the plugging piece;

when the convex part is staggered with the blocking part, the blocking part opens the branch channel; when the convex part is opposite to the blocking piece, the blocking piece can be pushed to slide towards the branch channel so as to block the branch channel.

4. The refrigerator according to claim 2, wherein a slide rail is provided in the valve housing;

the blocking piece comprises:

the sliding rod slides relative to the sliding rail, and one end, close to the cam, of the sliding rod is provided with a first blocking part; and

the spring is sleeved on the sliding rod and positioned between the first blocking part and the sliding rail;

the slide rod slides towards the branch channel direction under the driving force of the driving device, and the spring is compressed; when the driving force of the driving device borne by the sliding rod is reduced or disappears, the spring resets and pushes the sliding rod to slide towards the direction far away from the branch channel.

5. The refrigerator as claimed in claim 4, wherein a second stop is disposed at an end of the slide rod away from the cam, and the second stop is capable of abutting against the slide rail to limit a sliding distance of the slide rod when the slide rod opens the branch channel.

6. The refrigerator as claimed in claim 5, wherein the second stopper and/or the branch passage is provided with a sealing material to ensure sealing when the branch passage is blocked.

7. The refrigerator of claim 5, wherein the first stopper and the second stopper are both hemispherical.

8. The refrigerator according to claim 2, wherein,

a main cavity is formed in the valve shell and located at one end of the valve shell, the air exhaust channel and the branch channel are communicated with the main cavity and located at the other end of the valve shell, and the plugging piece and the driving device are arranged in the main cavity.

9. The refrigerator of claim 1, wherein the vacuum container comprises:

a housing having an opening formed at a front portion thereof, the housing being provided with a receiving space defined therein to receive an object to be stored, the housing being installed within the storage compartment;

a drawer to seal an interior of the housing;

the air outlet penetrates through the wall of the shell and is communicated with the accommodating space, and the air outlet is connected with the vent pipe.

10. The refrigerator of claim 2, wherein the electronic gas valve and the negative pressure device are connected to a wall of the storage compartment or an outer wall of the housing.