CN220689507U - Refrigerator with a refrigerator body - Google Patents

Abstract

The present utility model relates to a refrigerator, comprising: the box body is internally provided with a storage compartment; the box door is used for opening and closing the storage compartment; an air inlet channel is arranged in the box door, and one end of the air inlet channel is communicated with the storage compartment; the other end of the air inlet channel is communicated with the outside of the box door; a valve port is arranged in the air inlet channel; the valve body is arranged in the air inlet channel and is movably arranged at the valve port; the valve body can seal the valve port under the action of self gravity to close the air inlet channel; when the air pressure in the storage room is smaller than the air pressure outside the box body and the difference value of the air pressure and the air pressure is larger than a preset threshold value, the valve body can be jacked up by the pressure outside the box body, the valve port is opened, external air can enter the storage room through the air inlet channel, the air pressure in the storage room is increased, the air pressure inside and outside the refrigerator is balanced, the door opening force can be reduced, the box door is easy to open, and the problem that the door opening force of the box door is large is solved.

Description

Refrigerator with a refrigerator body

Technical Field

The utility model relates to the technical field of refrigeration equipment, in particular to a refrigerator.

Background

The refrigerator is a container for storing food materials by utilizing a low-temperature environment generated by phase change of a refrigerant, and is one of household appliances indispensable for the living of people. With the improvement of living standard of people, the requirements on refrigerator products are also higher and higher.

In the related refrigerator, a storage compartment storing food materials at a low temperature is generally provided in the refrigerator, and the storage compartment is opened or closed by a door.

When the refrigerator door is closed, air in the storage room is cooled and contracted, negative pressure is generated relative to the outside of the refrigerator, and the larger the temperature difference between the inside and the outside is, the larger the negative pressure is, and the larger the door opening force is when the refrigerator door is opened. In addition, the larger the refrigerator volume, the lower the temperature in the storage compartment is required, and thus the greater the door opening force when the door is opened, resulting in the door not being easily opened.

Disclosure of Invention

The utility model aims to provide a refrigerator so as to optimize the door structure of the refrigerator in the related technology and solve the problem of large door opening force of the door.

In order to solve the technical problems, the utility model adopts the following technical scheme:

according to one aspect of the present utility model, there is provided a refrigerator including: a case configured as a housing outside the ice case, the case having a storage compartment therein; the box door is movably arranged on the side wall of the box body and is used for opening and closing the storage compartment; an air inlet channel is arranged in the box door, and one end of the air inlet channel is arranged on the side wall of the box door facing the storage compartment and is communicated with the storage compartment; the other end of the air inlet channel is communicated with the outside of the box door; a valve port is arranged in the air inlet channel; the valve body is arranged in the air inlet channel and is movably arranged at the valve port; the valve body can seal the valve port under the action of self gravity so as to close the air inlet channel; when the air pressure in the storage room is smaller than the air pressure outside the box body and the difference value of the air pressure and the air pressure is larger than a preset threshold value, the pressure outside the box body can jack the valve body, and the valve port is opened, so that external air can enter the storage room through the air inlet channel.

In some embodiments of the present application, an upwardly extending vent pipe is disposed at the bottom of the door, and the vent pipe is located at one end of the air intake channel away from the storage compartment; the valve port is formed in the vent pipe and exposed out of the bottom surface of the box door, and the air inlet channel is communicated with the outside of the box door through the valve port; the valve body is movably arranged in the vent pipe, and can cover the top end opening of the vent pipe under the action of self gravity so as to seal the valve port.

In some embodiments of the present application, the valve body includes a valve plate and a limiting shaft, where the limiting shaft is formed by extending downward from a bottom surface of the valve plate; a limiting ring is arranged in the top end opening of the vent pipe, and a vent opening is arranged between the limiting ring and the peripheral side edge of the vent pipe; the limiting shaft movably penetrates through the limiting ring, and the valve plate movably covers the upper side of the limiting ring; the valve body can move downwards along the axial direction of the limiting ring under the action of self gravity, and the valve plate covers the vent hole so as to block the valve port.

In some embodiments of the present application, the valve body further includes a buckle, where the buckle extends downward from the limiting shaft, and the buckle protrudes from an outer peripheral wall of the limiting shaft; when the valve body is jacked up under the action of external pressure of the box body, the limiting shaft can move upwards along the axial direction of the limiting ring, and the buckle can be clamped with the limiting ring so as to limit the valve body in the vent pipe.

In some embodiments of the present application, the door includes a lower end cover, and the lower end cover is located at the bottom end of the door; the vent pipe is arranged in the lower end cover and extends upwards from the inner bottom surface of the lower end cover.

In some embodiments of the present application, a channel member is disposed in the door, and the air inlet channel is disposed in the channel member; the first end of the air inlet channel is arranged on the side wall of the channel piece facing the storage compartment, and the second end of the air inlet channel is arranged on the bottom surface of the channel piece; the channel piece is arranged on the upper side of the lower end cover, and the vent pipe extends into a bottom port arranged at the second end of the air inlet channel.

In some embodiments of the present application, the channel member includes a first foam block and a second foam block that are integrally spliced with each other; the air inlet channel is formed between the first foam block and the second foam block and is formed by mutually splicing the first foam block and the second foam block.

In some embodiments of the present application, a receiving cavity is formed at the second end of the air intake channel, and the breather pipe and the valve body are uniformly arranged in the receiving cavity; the top of the accommodating cavity is provided with a necking part, and the accommodating cavity is communicated with the first end of the air inlet channel through the necking part; the necking part is arranged right above the valve body, and the minimum caliber of the necking part is smaller than the outer diameter of the valve body.

In some embodiments of the present application, the protruding first spacing muscle and the second spacing muscle that is equipped with interval arrangement of interior bottom surface of lower extreme cover, the channel piece centre gripping is fixed between the first spacing muscle with the second spacing muscle.

In some embodiments of the present application, a side wall of the box door facing the storage compartment is provided with a vent hole; the vent communicates between the first end of the air intake passage and the storage compartment when the door closes the storage compartment.

In some embodiments of the present application, a ventilation groove is concavely formed on a side wall of the channel member facing the storage compartment, and the ventilation groove is communicated with the first end of the air inlet channel;

the air vent is provided with a plurality of air vents, and the air vents are respectively communicated with the air vent grooves.

In some embodiments of the present application, a boss portion is protruding on a side wall of the box door facing the storage compartment; the ventilation groove is arranged below the boss portion.

According to another aspect of the present utility model, there is also provided a refrigerator including: a case configured as a housing outside the ice case, the case having a storage compartment therein; the box door is movably arranged on the side wall of the box body and is used for opening and closing the storage compartment; an air inlet channel is arranged in the box door, and one end of the air inlet channel is arranged on the side wall of the box door facing the storage compartment and is communicated with the storage compartment; the other end of the air inlet channel is arranged on the bottom surface of the box door and communicated with the outside of the box door; the valve body is movably arranged at the bottom end port of the air inlet channel; the valve body can seal the bottom port of the air inlet channel under the action of self gravity so as to close the air inlet channel; when the air pressure in the storage room is smaller than the air pressure outside the box body and the difference value of the air pressure and the air pressure is larger than a preset threshold value, the pressure outside the box body can jack up the valve body, and the bottom end opening of the air inlet channel is opened, so that outside air can enter the storage room through the air inlet channel.

The embodiment of the utility model has the following advantages and positive effects:

in the refrigerator provided by the embodiment of the utility model, the air inlet channel is arranged on the refrigerator door, the valve port is arranged in the air inlet channel, the valve body is movably arranged in the air inlet channel, and the valve body can block the valve port by utilizing the gravity of the valve body, so that the air inlet channel is closed, and the cold air in the storage room is prevented from leaking to the outside of the refrigerator from the air inlet channel; meanwhile, in the refrigerating process, the air pressure in the storage room is reduced, when the air pressure in the storage room is smaller than the air pressure outside the refrigerator, and when the difference value of the air pressure in the storage room and the air pressure in the storage room is larger than the preset threshold value, the pressure of the air pressure outside the box body to the valve body is larger than the sum of the pressure of the air pressure in the storage room to the valve body and the gravity of the valve body, the valve body can be jacked up by the pressure outside the box body, so that the valve port can be opened, and then the air outside the box body can enter the storage room through the air inlet channel, so that the air pressure in the storage room is increased, the air pressure inside and outside the refrigerator is balanced, the door opening force can be reduced, the box door is easy to open, and the problem that the door opening force of the box door is large is solved.

Drawings

Fig. 1 is a schematic view illustrating a structure of a door of a refrigerator according to an embodiment of the present utility model.

Fig. 2 is a schematic view of the structure of fig. 1 at another view angle.

Fig. 3 is an exploded view of fig. 2.

Fig. 4 is an enlarged schematic view of the area a in fig. 2.

Fig. 5 is a side view of fig. 1.

Fig. 6 is an enlarged partial schematic view of fig. 5.

Fig. 7 is a schematic view of a part of the structure in fig. 3.

Fig. 8 is an exploded view of fig. 7.

Fig. 9 is a schematic structural view of the channel member in fig. 8.

Fig. 10 is an exploded view of fig. 9.

Fig. 11 is a cross-sectional view of fig. 9.

Fig. 12 is an enlarged schematic view of the area B in fig. 8.

Fig. 13 is a schematic view of the structure of the valve body of fig. 8.

Fig. 14 is a schematic view of the structure of fig. 13 at another view angle.

Fig. 15 is a schematic view of the structure of fig. 7 at another viewing angle.

Fig. 16 is an enlarged schematic view of the area C in fig. 15.

Fig. 17 is a front view of fig. 15.

Fig. 18 is a sectional view taken along the direction D-D in fig. 17.

Fig. 19 is an enlarged schematic view of the area E in fig. 18.

Fig. 20 is a schematic view of the structure of fig. 19 in another state.

The reference numerals are explained as follows: 1. a door; 11. a door housing; 111. a door panel; 112. a left side plate; 113. a right side plate; 12. an upper end cap; 13. a lower end cap; 131. the first limit rib; 132. the second limit rib; 133. a third limit rib; 134. fourth limit ribs; 14. a door liner; 141. a boss portion; 15. a door seal; 16. a vent hole; 17. a vent pipe; 170. a valve port; 171. a limiting ring; 172. a vent; 173. a connecting rib; 2. a channel member; 20. an air intake passage; 201. a receiving chamber; 202. a pinch portion; 21. a first foam block; 22. a second foam block; 23. a vent groove; 3. a valve body; 31. a valve plate; 32. a limiting shaft; 33. and (5) a buckle.

Detailed Description

Exemplary embodiments that embody features and advantages of the present utility model will be described in detail in the following description. It will be understood that the utility model is capable of various modifications in various embodiments, all without departing from the scope of the utility model, and that the description and illustrations herein are intended to be by way of illustration only and not to be construed as limiting the utility model.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

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

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

In the related refrigerator, a storage compartment storing food materials at a low temperature is generally provided in the refrigerator, and the storage compartment is opened or closed by a door. When the refrigerator door is closed, air in the storage room is cooled and contracted, negative pressure is generated relative to the outside of the refrigerator, and the larger the temperature difference between the inside and the outside is, the larger the negative pressure is, and the larger the door opening force is when the refrigerator door is opened. In addition, the larger the refrigerator volume, the lower the temperature in the storage compartment is required, and thus the greater the door opening force when the door is opened, resulting in the door not being easily opened.

Fig. 1 is a schematic view of a structure of a door 1 of a refrigerator according to an embodiment of the present utility model. Fig. 2 is a schematic view of the structure of fig. 1 at another view angle. Fig. 3 is an exploded view of fig. 2.

Referring to fig. 1 to 3, a refrigerator according to an embodiment of the present utility model mainly includes a refrigerator body (not shown) and a refrigerator door 1 disposed on an outer wall of the refrigerator body.

Wherein the case is configured as a housing outside the ice case. The case adopts a rectangular hollow structure, and it is understood that in other embodiments, the case may also adopt a hollow shell structure of other shapes.

A storage compartment (not shown) is provided in the case, and the storage compartment is used for storing food materials at a low temperature.

In some embodiments, a plurality of storage compartments separated from each other can be arranged in the box body, and each separated storage compartment can be used as an independent storage space for low-temperature storage, such as a freezing chamber, a refrigerating chamber, a fruit and vegetable chamber, a temperature changing chamber and the like, so as to meet different refrigeration requirements of freezing, refrigerating, fruit and vegetable fresh-keeping, temperature changing and the like according to different food types, and store the food. The storage compartments may be arranged in a vertically spaced apart manner, or in a laterally spaced apart manner.

The inside of the box body is provided with a box liner (not shown in the figure), the inside of the box liner is hollow, and a storage compartment is formed in the box liner. The front side opening of the box liner can be used for placing food into the corresponding storage room. It will be appreciated that a plurality of liners may be provided within the housing, each liner defining one or more storage compartments.

Referring to fig. 1 to 3, a door 1 is movably disposed at a front side of a case, and the door 1 is configured to open and close a storage compartment, i.e., the door 1 can open and close a front opening of a container.

In some embodiments, the door 1 is a rotary door body structure. The door 1 is rotatably provided at the front side of the cabinet, and the door 1 can be used as a general door structure such as a refrigerator door, a freezer door, etc. Specifically, the refrigerator door 1 and the refrigerator body can be connected through a hinge, so that the refrigerator door 1 of the refrigerator can rotate around the axis of the hinge, the refrigerator door 1 is opened and closed, and the corresponding storage compartment is opened and closed.

It should be noted that, in some embodiments, the door 1 may also be a push-pull door structure. The box door 1 is arranged on the front side of the box body in a sliding way, and the box door 1 can be used as a drawer door. Specifically, guide rails (not shown in the figure) are respectively arranged on the left and right inner side walls of the box liner, the box door 1 is respectively connected with the guide rails on two sides, and then the push-pull function of the box door 1 is realized through the extension and retraction of the guide rails, and the opening and closing of the storage compartment are realized.

Referring to fig. 3, in some embodiments, the door 1 includes a door housing 11, an upper end cap 12, a lower end cap 13, and a door liner 14. The upper end cover 12 is disposed at the top edge of the door housing 11 and serves as a top appearance surface of the door 1. The lower end cover 13 is provided at the bottom end edge of the door housing 11 and serves as the bottom side exterior surface of the door 1. The door liner 14 is provided on the back side of the door case 11 and serves as a back side exterior surface of the door 1. The door shell 11, the upper end cover 12, the lower end cover 13 and the door liner 14 can be enclosed to form a door inner cavity, so that the door inner cavity can be filled with foaming materials in a sealing mode, and the heat preservation and heat insulation performance of the door 1 are achieved.

In some embodiments, the door housing 11 includes an integrally formed door panel 111, left side panel 112, and right side panel 113. The door panel 111 has a flat plate structure and serves as a front surface of the door 1. The left side plate 112 is arranged by bending and extending rearward from the left side edge of the door panel 111, and the left side plate 112 serves as a left side appearance surface of the door 1. The right side plate 113 is arranged by bending and extending rearward from the right side edge of the door panel 111, and the right side plate 113 serves as a right side exterior surface of the door 1.

It should be noted that, in other embodiments, the right side plate 113 of the left side plate 112 may be detachably disposed at the left and right side edges of the door panel 111, respectively.

Referring to fig. 3, in some embodiments, a door seal 15 is disposed at a peripheral edge of the door liner 14, and the door seal 15 is disposed at a connection gap between the door liner 14 and the door housing 11, the upper end cover 12, and the lower end cover 13, so as to seal a door cavity. Meanwhile, when the refrigerator door 1 closes the corresponding storage compartment, the door seal 15 can seal the closing gap between the refrigerator door 1 and the refrigerator body, and prevent heat exchange between the interior of the storage compartment and the exterior of the refrigerator body, so that the energy consumption of the refrigerator is reduced.

In some embodiments, a magnet (not shown) is provided inside the dock seal 15. When the refrigerator door 1 closes the storage compartment, the magnet is attracted to the refrigerator body, so that the refrigerator door 1 can tightly close the storage compartment. Therefore, when the door 1 is opened, the attraction force of the magnet and the pressure difference between the inside and the outside of the door 1 need to be overcome.

In some embodiments, a refrigeration assembly (not shown) is provided within the cabinet for providing refrigeration to the interior of the refrigerator to maintain a low temperature environment within each compartment. The refrigeration assembly comprises a compressor, a condenser, an evaporator, a throttling device and the like, and the specific structure and connection relation of the refrigeration assembly can refer to the refrigeration assembly in the related art and are not repeated herein.

Fig. 4 is an enlarged schematic view of the area a in fig. 2.

Referring to fig. 1 to 4, in some embodiments, the inner side wall of the door 1 is provided with a vent hole 16, the vent hole 16 is provided on the side wall of the door 1 facing the storage compartment, and the vent hole 16 is disposed opposite to the storage compartment. The inside of the refrigerator door 1 is provided with a channel piece 2, an air inlet channel 20 is formed in the channel piece 2, a first end of the air inlet channel 20 is communicated with the vent hole 16, and a second end of the air inlet channel 20 is communicated with the outer space of the refrigerator door 1, namely, the outer space of the refrigerator. Meanwhile, when the refrigerator door 1 is closed, the air vent 16 can be communicated with the storage compartment and the air inlet channel 20, so that air outside the refrigerator can enter the storage compartment through the air inlet channel 20 and the air vent 16, the air pressure difference between the inside and the outside of the refrigerator is balanced, and the door opening force of the refrigerator door 1 when the refrigerator door is opened can be reduced.

In some embodiments, the channel member 2 is pre-arranged inside the door 1, i.e. the channel member 2 is pre-arranged in the door cavity. When the door cavity is filled with foaming material, the channel member 2 can be fixed inside the door 1.

It should be noted that, in other embodiments, the channel member 2 may be integrally formed inside the door 1, that is, the air intake channel 20 may be integrally formed inside the door 1, and the air vent 16 may be in communication with the first end of the air intake channel 20.

Fig. 5 is a side view of fig. 1. Fig. 6 is an enlarged partial schematic view of fig. 5.

Referring to fig. 2-5, in some embodiments, the vent 16 is provided on the door liner 14. Therefore, when the door 1 closes the corresponding storage compartment, the vent hole 16 can communicate with the corresponding storage compartment.

In some embodiments, the door liner 14 is provided with a boss portion 141 protruding toward the inside of the storage compartment, and the vent hole 16 is provided in a lower region of the door 1 and is disposed in a region of the door liner 14 below the boss portion 141. Therefore, when the door 1 is opened, the boss portion 141 can visually shield the vent hole 16 again, so that the user is not easy to see, and the influence on the product appearance is reduced.

In some embodiments, the vent holes 16 are circular hole structures, and the vent holes 16 are provided in a plurality, and each of the plurality of vent holes 16 communicates with the first end of the intake passage 20. Accordingly, the plurality of ventilation holes 16 can communicate with the storage compartment and the intake passage 20, respectively. The size and number of the ventilation holes 16 may be adjusted according to the volume of the refrigerator and the storage compartment, and are not limited herein.

Fig. 7 is a schematic view of a part of the structure in fig. 3. Fig. 8 is an exploded view of fig. 7. Fig. 9 is a schematic structural view of the channel member 2 in fig. 8.

Referring to fig. 3 to 9, in some embodiments, the channel member 2 is disposed at a bottom region of the inner portion of the door 1 and above the lower end cap 13. The inner top surface of the lower end cover 13 is convexly provided with a first limiting rib 131 and a second limiting rib 132 which are arranged at intervals, and the channel piece 2 is clamped and fixed between the first limiting rib 131 and the second limiting rib 132.

In some embodiments, the inner top surface of the lower end cover 13 is provided with a third spacing rib 133 and a fourth spacing rib 134 which are arranged at intervals in a protruding manner, two ends of the first spacing rib 131 and the second spacing rib 132 are respectively connected with the third spacing rib 133 and the fourth spacing rib 134, so that a four-sided frame structure is formed by enclosing between the first spacing rib 131, the second spacing rib 132, the third spacing rib 133 and the fourth spacing rib 134, and then the channel piece 2 is clamped and fixed in the frame structure between the first spacing rib 131, the second spacing rib 132, the third spacing rib 133 and the fourth spacing rib 134.

Fig. 10 is an exploded view of fig. 9. Fig. 11 is a cross-sectional view of fig. 9.

Referring to fig. 2 to 11, in some embodiments, a first end of the air intake passage 20 is provided on a sidewall of the passage member 2 facing the storage compartment, and the first end of the air intake passage 20 can communicate with the corresponding storage compartment through the air vent 16. The second end of the air intake passage 20 is provided on the bottom surface of the passage member 2, and the second end of the air intake passage 20 can communicate with the external space of the door 1 through the bottom surface of the lower end cap 13.

Referring to fig. 9 to 11, in some embodiments, the channel member 2 includes a first foam block 21 and a second foam block 22 integrally spliced with each other. The air inlet channel 20 is formed between the first foam block 21 and the second foam block 22, the air inlet channel 20 is formed by mutually splicing the first foam block 21 and the second foam block 22, and the air inlet channel 20 is arranged in an L-shaped structure.

It should be noted that, the first foam block 21 and the second foam block 22 may be foam pieces, so as to reduce the cost. In other embodiments, the first foam piece 21 and the second foam piece 22 may be plastic pieces.

In some embodiments, two intake passages 20 are provided in the passage member 2, the two intake passages 20 being arranged at a distance from each other. The first ends of the two air inlet channels 20 are communicated with the vent holes 16, and the second ends of the two air inlet channels 20 are communicated with the external space of the box door 1 through the bottom surface of the lower end cover 13.

It should be noted that, in other embodiments, the number of the air intake passages 20 may be adjusted according to need, which is not limited herein.

Referring to fig. 4 to 11, in some embodiments, a ventilation groove 23 is concavely formed on a sidewall of the channel member 2 facing the storage compartment, and the ventilation groove 23 communicates with a first end of the air inlet channel 20. The ventilation groove 23 extends transversely in an elongated shape, and first ends of the plurality of air intake passages 20 are all communicated with the ventilation groove 23. Meanwhile, a plurality of ventilation holes 16 on the inner side wall of the cabinet door 1 are respectively communicated with the ventilation grooves 23. Accordingly, the plurality of ventilation holes 16 can communicate with the first ends of the intake passages 20 through the ventilation grooves 23, and communicate with the plurality of intake passages 20 through the ventilation grooves 23.

It should be noted that, in other embodiments, the ventilation slots 23 may also be arranged to extend vertically or diagonally.

Fig. 12 is an enlarged schematic view of the area a in fig. 8.

Referring to fig. 8 to 12, in some embodiments, the ventilation pipe 17 extending upward is protruded on the inner top surface of the lower end cover 13, that is, the ventilation pipe 17 extends upward from the bottom of the door 1. The vent pipe 17 is internally provided with a valve port 170, and the bottom end of the valve port 170 is exposed to the bottom surface of the lower end cover 13 and is communicated with the outside of the box door 1. The vent pipe 17 is located inside the door 1, the vent pipe 17 is arranged in direct opposition to the second end of the intake passage 20, and the vent pipe 17 can extend into a bottom port arranged at the second end of the intake passage 20. Accordingly, the second end of the intake passage 20 is located at the bottom region of the door 1 and communicates with the space outside the door 1 through the valve port 170.

In some embodiments, a plurality of breather pipes 17 are provided, and a plurality of breather pipes 17 are arranged in one-to-one correspondence to a plurality of intake passages 20. That is, the valve ports 170 are formed in plurality, and the plurality of valve ports 170 are arranged in the second end of the intake passage 20 in one-to-one correspondence.

Fig. 13 is a schematic view of the structure of the valve body 3 in fig. 8. Fig. 14 is a schematic view of the structure of fig. 13 at another view angle. Fig. 15 is a schematic view of the structure of fig. 7 at another viewing angle. Fig. 16 is an enlarged schematic view of the area B in fig. 15.

Referring to fig. 8 to 16, in some embodiments, the door 1 is further provided with a valve body 3, the valve body 3 is disposed in the air intake channel 20, and the valve body 3 is movably disposed at the vent pipe 17, that is, the valve body 3 is movably disposed at the valve port 170. The valve body 3 can cover the top end opening of the vent pipe 17 under the action of self gravity, so as to seal the valve port 170, and close the air inlet channel 20. Therefore, when the air pressure value inside the storage compartment is smaller than the air pressure difference outside the box body, and the air pressure value inside the storage compartment is not larger than the air pressure difference outside the box body and smaller than the preset threshold value, the valve body 3 can keep the state of blocking the valve port 170 under the action of gravity, so that the air inlet channel 20 is kept in a closed state, the sealing performance of the storage compartment is further kept, and the low-temperature storage environment inside the storage compartment is effectively kept.

Meanwhile, when the air pressure value inside the storage room is smaller than the air pressure difference value outside the box body, and the air pressure difference value inside the storage room and the air pressure difference value outside the box body is larger than a preset threshold value, the upward pressure of the bottom of the valve body 3, which is caused by the valve port 170, outside the box body can be larger than the sum of the downward pressure of the top of the valve body 3 and the gravity of the valve body 3, which are caused by the air inlet 16 and the air inlet, inside the box body, inside the storage room, so that the valve port 170 is opened, the air outside the box body can enter the storage room through the valve port 170, the air inlet channel 20 and the air inlet 16, the air pressure inside the storage room is increased, the internal and external air pressures of the refrigerator are balanced, and the valve body 3 can be used for plugging the valve port 170 under the action of self gravity again. Therefore, the structure of the air inlet channel 20, the valve body 3 and the valve port 170 is matched, so that the door opening force can be reduced, the door 1 is easy to open, and the problem of large door opening force of the door 1 is solved.

In some embodiments, the valve body 3 is provided with a plurality of valve bodies 3, and the valve bodies 3 are arranged at the plurality of vent pipes 17 in a one-to-one correspondence manner and are used for plugging the corresponding valve ports 170 in a one-to-one correspondence manner.

It should be noted that, in other embodiments, the valve port 170 may be disposed in other areas of the inner end of the intake passage 20, that is, the breather pipe 17 may be disposed in other areas of the interior of the channel member 2. At this time, the second end of the air intake passage 20 may be provided on the bottom surface of the door 1 or on other side walls of the door 1.

Fig. 17 is a front view of fig. 15. Fig. 18 is a cross-sectional view taken along line C-C of fig. 17. Fig. 19 is an enlarged schematic view of the area D in fig. 18. Fig. 20 is a schematic view of the structure of fig. 19 in another state.

Referring to fig. 12 to 20, in some embodiments, the valve body 3 includes a valve plate 31 and a limiting shaft 32 integrally connected, the valve plate 31 has a contour shape corresponding to a top end opening of the vent pipe 17, and the limiting shaft 32 is formed by extending downward from a bottom surface of the valve plate 31. Meanwhile, a limiting ring 171 is arranged in the top end opening of the vent pipe 17, and a vent hole 172 is arranged between the limiting ring 171 and the peripheral side edge of the vent pipe 17. The limiting ring 171 and the air vent 172 are both positioned at the top end area of the valve port 170, the top end of the valve port 170 is communicated with the inside of the air inlet channel 20 through the air vent 172, and the bottom end of the valve port 170 is communicated with the external space of the box door 1.

When the valve body 3 is installed at the vent pipe 17, the limiting shaft 32 movably penetrates through the limiting ring 171, and the valve plate 31 movably covers the upper side of the limiting ring 171. Therefore, the valve body 3 can move downward in the axial direction of the retainer 171 under the action of its own weight, and the valve plate 31 is covered on the vent hole 172, so that the top end opening of the vent pipe 17, i.e., the valve port 170 is blocked, as shown in fig. 19.

When the difference between the air pressure of the storage room and the air pressure of the outside of the box body is larger than the preset threshold value, the valve plate 31 can be jacked up, so that the limiting ring 171 of the limiting shaft 32 moves upwards in the axial direction, the air vent 172 is opened, namely the valve port 170 is opened, as shown in the state of fig. 20, the air of the outside of the box body can enter the air inlet channel 20 through the valve port 170 and the air vent 172, and then enter the storage room through the air vent 16, the air pressure difference between the storage room and the outside of the box body is balanced, until the valve body 3 seals the valve port 170 under the action of self gravity again, further the door opening force is reduced, the box door 1 is easy to open, and the problem that the door opening force of the box door 1 is large is solved.

Referring to fig. 12 to 16, in some embodiments, a connection rib 173 is disposed in the top port of the vent pipe 17, and the connection rib 173 is disposed between the stop collar 171 and the inner wall of the top port of the vent pipe 17. One end of the connecting rib 173 is connected with the limit ring 171, the other end of the connecting rib 173 is connected with the inner wall of the vent pipe 17, and the limit ring 171 can be fixed in the top port of the vent pipe 17 through the connecting rib 173.

In some embodiments, the plurality of connection ribs 173 are provided, the plurality of connection ribs 173 are circumferentially arranged around the circumferential side of the retainer ring 171 at intervals, and the air vents 172 are formed between the adjacent connection ribs 173. Therefore, the retainer ring 171 can be fixed in the top port of the vent pipe 17 by the plurality of connection ribs 173. The number of the connection ribs 173 may be adjusted as needed, and is not limited herein.

Referring to fig. 12 to 20, in some embodiments, the valve body 3 further includes a catch 33, the catch 33 extends downward from the bottom end of the limiting shaft 32, and the catch 33 protrudes from the peripheral wall of the limiting shaft 32. When the valve body 3 is installed in the vent pipe 17, the protruding portion of the catch 33 can be located below the retainer ring 171. The outer diameter of the catch 33 is larger than the inner diameter of the stop collar 171. Therefore, when the valve body 3 is lifted up under the external pressure of the box body, the limiting shaft 32 can move upward along the axial direction of the limiting ring 171, and the buckle 33 can be clamped with the limiting ring 171, so as to prevent the valve body 3 from being separated from the limiting ring 171, and further limit the valve body 3 in the vent pipe 17, as shown in fig. 19 and 20.

In some embodiments, a plurality of catches 33 are provided, with the plurality of catches 33 being circumferentially arranged at intervals on the peripheral wall of the limit shaft 32.

Referring to fig. 11 and 18, a receiving chamber 201 is formed at the second end of the air inlet channel 20, and the vent pipe 17 and the valve body 3 are uniformly distributed in the receiving chamber 201. The top of the accommodating chamber 201 is provided with a reduced-diameter portion 202, and the accommodating chamber 201 communicates with the first end of the air intake passage 20 through the reduced-diameter portion 202. The tapered portion 202 is provided directly above the valve body 3, and the diameter of the tapered portion 202 gradually decreases in the upward direction. The minimum caliber at the pinch portion 202 is smaller than the outer diameter of the valve body 3. Therefore, when the valve body 3 is lifted up by the pressure outside the case, the necked-down portion 202 can prevent the valve body 3 from going deep up into the inside of the intake passage 20.

Based on the technical scheme, the embodiment of the utility model has at least the following advantages and positive effects:

in the refrigerator provided by the embodiment of the utility model, the air inlet channel 20 is arranged on the refrigerator door 1, the valve port 170 is arranged in the air inlet channel 20, the valve body 3 is movably arranged in the air inlet channel 20, and the gravity of the valve body 3 is utilized to enable the valve body 3 to block the valve port 170, so that the air inlet channel 20 is closed, and the cold air in the storage room is prevented from leaking to the outside of the refrigerator from the air inlet channel 20; meanwhile, in the refrigerating process, the air pressure in the storage room is reduced, when the air pressure in the storage room is smaller than the air pressure outside the refrigerator, and the difference value between the air pressure in the storage room and the air pressure in the refrigerator is larger than the preset threshold value, after the pressure of the air pressure outside the box body to the valve body 3 is larger than the sum of the pressure of the air pressure inside the storage room to the valve body 3 and the gravity of the valve body 3, the pressure outside the box body can jack up the valve body 3 to open the valve port 170, and then the air outside the box body can enter the storage room through the air inlet channel 20, so that the air pressure in the storage room is increased, the air pressure inside and outside the refrigerator is balanced, the door opening force can be reduced, the box door 1 is easy to open, and the problem that the door opening force of the box door 1 is large is solved.

While the utility model has been described with reference to several exemplary embodiments, it is to be understood that the terminology used is intended to be in the nature of words of description and of limitation. As the present utility model may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims (13)

1. A refrigerator, comprising:

a case configured as a housing outside the ice case, the case having a storage compartment therein;

the box door is movably arranged on the side wall of the box body and is used for opening and closing the storage compartment; an air inlet channel is arranged in the box door, and one end of the air inlet channel is arranged on the side wall of the box door facing the storage compartment and is communicated with the storage compartment; the other end of the air inlet channel is communicated with the outside of the box door; a valve port is arranged in the air inlet channel;

the valve body is arranged in the air inlet channel and is movably arranged at the valve port;

the valve body can seal the valve port under the action of self gravity so as to close the air inlet channel;

when the air pressure in the storage room is smaller than the air pressure outside the box body and the difference value of the air pressure and the air pressure is larger than a preset threshold value, the pressure outside the box body can jack the valve body, and the valve port is opened, so that external air can enter the storage room through the air inlet channel.

2. The refrigerator as claimed in claim 1, wherein a bottom of the door is provided with an upwardly extending vent pipe at an end of the air intake passage remote from the storage compartment;

the valve port is formed in the vent pipe and exposed out of the bottom surface of the box door, and the air inlet channel is communicated with the outside of the box door through the valve port;

the valve body is movably arranged in the vent pipe, and can cover the top end opening of the vent pipe under the action of self gravity so as to seal the valve port.

3. The refrigerator as claimed in claim 2, wherein the valve body includes a valve plate and a limiting shaft formed by extending a bottom surface of the valve plate downward;

a limiting ring is arranged in the top end opening of the vent pipe, and a vent opening is arranged between the limiting ring and the peripheral side edge of the vent pipe;

the limiting shaft movably penetrates through the limiting ring, and the valve plate movably covers the upper side of the limiting ring;

the valve body can move downwards along the axial direction of the limiting ring under the action of self gravity, and the valve plate covers the vent hole so as to block the valve port.

4. The refrigerator as claimed in claim 3, wherein the valve body further includes a catch extending downward from the limit shaft, and protruding from an outer circumferential wall of the limit shaft;

when the valve body is jacked up under the action of external pressure of the box body, the limiting shaft can move upwards along the axial direction of the limiting ring, and the buckle can be clamped with the limiting ring so as to limit the valve body in the vent pipe.

5. The refrigerator as claimed in claim 2, wherein the door includes a lower cover at a bottom end of the door; the vent pipe is arranged in the lower end cover and extends upwards from the inner bottom surface of the lower end cover.

6. The refrigerator as claimed in claim 5, wherein a passage member is provided in the door, and the air inlet passage is provided in the passage member;

the first end of the air inlet channel is arranged on the side wall of the channel piece facing the storage compartment, and the second end of the air inlet channel is arranged on the bottom surface of the channel piece;

the channel piece is arranged on the upper side of the lower end cover, and the vent pipe extends into a bottom port arranged at the second end of the air inlet channel.

7. The refrigerator as claimed in claim 6, wherein the channel member includes a first foam block and a second foam block integrally spliced with each other;

the air inlet channel is formed between the first foam block and the second foam block and is formed by mutually splicing the first foam block and the second foam block.

8. The refrigerator as claimed in claim 6, wherein the air inlet passage is formed at a second end thereof with a receiving chamber, and the vent pipe and the valve body are uniformly disposed in the receiving chamber;

the top of the accommodating cavity is provided with a necking part, and the accommodating cavity is communicated with the first end of the air inlet channel through the necking part;

the necking part is arranged right above the valve body, and the minimum caliber of the necking part is smaller than the outer diameter of the valve body.

9. The refrigerator of claim 6, wherein the inner bottom surface of the lower end cover is provided with first and second spacing ribs arranged at intervals in a protruding manner, and the channel member is clamped and fixed between the first and second spacing ribs.

10. The refrigerator as claimed in claim 6, wherein a vent hole is provided at a side wall of the door facing the storage compartment;

the vent communicates between the first end of the air intake passage and the storage compartment when the door closes the storage compartment.

11. The refrigerator of claim 10, wherein a side wall of the passage member facing the storage compartment is concavely provided with a ventilation groove communicating with a first end of the air intake passage;

the air vent is provided with a plurality of air vents, and the air vents are respectively communicated with the air vent grooves.

12. The refrigerator as claimed in claim 11, wherein a boss portion is protruded on a side wall of the door facing the storage compartment; the ventilation groove is arranged below the boss portion.

13. A refrigerator, comprising:

a case configured as a housing outside the ice case, the case having a storage compartment therein;

the box door is movably arranged on the side wall of the box body and is used for opening and closing the storage compartment; an air inlet channel is arranged in the box door, and one end of the air inlet channel is arranged on the side wall of the box door facing the storage compartment and is communicated with the storage compartment; the other end of the air inlet channel is arranged on the bottom surface of the box door and communicated with the outside of the box door;

the valve body is movably arranged at the bottom end port of the air inlet channel;

the valve body can seal the bottom port of the air inlet channel under the action of self gravity so as to close the air inlet channel;

when the air pressure in the storage room is smaller than the air pressure outside the box body and the difference value of the air pressure and the air pressure is larger than a preset threshold value, the pressure outside the box body can jack up the valve body, and the bottom end opening of the air inlet channel is opened, so that outside air can enter the storage room through the air inlet channel.