CN222123661U - Refrigerating apparatus - Google Patents

Abstract

The utility model relates to a refrigeration device, which comprises a box body, a door body and a valve body assembly, a refrigeration chamber is formed in the box body, the door body is connected to the box body and is used to control the switch of a food introduction port, at least one air inlet channel for connecting the refrigeration chamber with the outside is formed on the door body, and a first end connected to the outside and a second end connected to the refrigeration chamber are formed on the air inlet channel; the valve body assembly comprises a valve seat and a valve body, the valve seat is detachably connected to the first end of the air inlet channel, and the valve body is movably connected to the valve seat and is used to open or close the air inlet channel; when foreign matter enters the air inlet channel or the valve body assembly is damaged, the valve body assembly can be conveniently disassembled and repaired from the air inlet channel, the repair and replacement costs are low, and the operation difficulty is reduced.

Description

Refrigerating apparatus

Technical Field

The utility model belongs to the technical field of electrical equipment, and particularly relates to refrigeration equipment.

Background

The refrigerator is an indispensable refrigeration equipment in daily life, and the refrigerator generally includes box and door body, forms the refrigeration cavity in the box and places the article that needs refrigeration to deposit, and the refrigeration cavity then realizes the switch in order to make things convenient for the user to access article through the door body.

The refrigerator reduces the temperature inside the refrigerator by transferring the internal heat to the outside. The air in the refrigerator door is cooled and contracted after the refrigerator door is closed, negative pressure is generated relative to the outside of the refrigerator door, 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, in particular, the lower the temperature in the refrigerator is generally below-18 ℃, the larger the door opening force is, so that the large-volume refrigerator has the problem of large door opening force.

Patent document CN202322069457.5 proposes a refrigerator, in which the valve body is fixedly connected in the air inlet channel, when the door body is filled with foaming process, there may be foaming material leaking or dirt entering, and the balance valve is damaged, so that the whole door can be scrapped.

The above information disclosed in this background section is only for enhancement of understanding of the background section of the application and therefore it may not form the prior art that is already known to those of ordinary skill in the art.

Disclosure of utility model

The utility model aims to provide refrigeration equipment so as to solve the problems that in the prior art, an existing valve body assembly is fixedly connected in an air inlet channel, maintenance and replacement are inconvenient and the like.

In order to achieve the aim of the utility model, the utility model is realized by adopting the following technical scheme:

In one aspect, the present utility model provides a refrigeration appliance comprising:

A case body in which a refrigerating chamber is formed, the front end of which is formed with a food introduction port;

The door body is connected to the box body and used for controlling the switch of the food inlet port, at least one air inlet channel used for communicating the refrigerating chamber with the outside is formed on the door body, and a first end communicated with the outside and a second end communicated with the refrigerating chamber are formed on the air inlet channel;

The valve body assembly comprises a valve seat and a valve body, wherein the valve seat is detachably connected to the first end of the air inlet channel, and the valve body is movably connected to the valve seat and is used for opening or closing the air inlet channel.

In some embodiments of the present application, the door body includes a door housing, an upper end cover, a lower end cover, and a door liner, a liner groove portion extending toward the door housing is formed below the door liner, at least one air inlet hole is formed in the liner groove portion, and a second end of the air inlet channel is communicated with the air inlet hole.

In some embodiments of the application, a mounting is provided between the door liner and the door shell, the air intake passage being formed in the mounting.

In some embodiments of the application, the first end is formed on a side of the mounting member adjacent the lower end cap and the second end is formed on a side of the mounting member adjacent the door liner.

In some embodiments of the application, the lower end cap has a mounting hole formed therein, the first end being in communication with the mounting hole.

In some embodiments of the application, the valve seat is removably attached to the mounting hole, and the valve seat is removably attached to the mounting hole by a snap fit connection.

In some embodiments of the application, the outer wall dimension of the valve seat is adapted to the inner diameter dimension of the mounting hole.

In some embodiments of the present application, a plurality of upper positioning portions are formed on the outer wall of the valve seat along the circumferential direction in a dispersing manner, a plurality of lower positioning portions extending outwards are formed below the valve seat along the circumferential direction in a dispersing manner, and the upper positioning portions and the lower positioning portions are respectively connected to the inner side and the outer side of the mounting hole.

In some embodiments of the present application, the upper positioning portion and the lower positioning portion are spaced apart, and the upper positioning portion is formed with a guide surface gradually expanding in a direction approaching the lower positioning portion.

In some embodiments of the present application, a through connection port and a valve port are formed at the top of the valve seat, the valve body includes a valve cover, a valve core formed at the bottom of the valve cover, and a limit protrusion located at the bottom of the valve core, and the valve core can move up and down along the connection port, so that the valve cover opens or closes the valve port.

In some embodiments of the application, the connection port is located at a middle position of the valve seat, and the valve ports are circumferentially spaced apart on a circumferential side of the connection port.

In some embodiments of the present application, a plurality of air inlet channels are formed on the mounting piece at intervals, a communication groove is formed on one side, close to the door liner, of the mounting piece, and the second end of each air inlet channel is communicated with each air inlet hole through the communication groove.

In another aspect, the present application also provides a refrigeration apparatus, including:

A case body in which a refrigerating chamber is formed, the front end of which is formed with a food introduction port;

The door body is connected to the box body and used for controlling the opening and closing of the food inlet port, and at least one air inlet channel used for communicating the refrigeration cavity with the outside is formed on the door body;

The valve body assembly is detachably connected in the air inlet channel and is configured to open the air inlet channel when the difference between the external air pressure P1 and the air pressure P2 in the refrigerating chamber is larger than a preset threshold value so as to balance the pressure difference between the refrigerating chamber and the outside.

Compared with the prior art, the utility model has the advantages and positive effects that:

When the pressure difference between the refrigerating compartment and the outside is larger than a preset threshold, the valve body component opens the air inlet channel to balance the pressure difference between the refrigerating compartment and the outside, so that the problems of large internal and external pressure difference, laborious door opening and the like caused by low air temperature of the refrigerating compartment are solved;

Valve seat in the valve body subassembly can dismantle and connect in the air inlet channel, and valve body movable connection is on the valve seat, gets into under the condition that foreign matter or valve body subassembly damaged in the air inlet channel, can make things convenient for valve body subassembly to dismantle the maintenance in the air inlet channel, and maintenance and replacement cost are low, and the operation degree of difficulty reduces.

Other features and advantages of the present utility model will become apparent upon review of the detailed description of the utility model in conjunction with the drawings.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.

FIG. 1 is a schematic view of a door structure according to an embodiment;

FIG. 2 is an enlarged schematic view of FIG. 1 at A;

FIG. 3 is a schematic view of a mounting attachment location according to an embodiment;

FIG. 4 is a schematic diagram of an intake passage according to an embodiment;

FIG. 5 is a schematic illustration of a mounting and intake valve seat structure according to an embodiment;

FIG. 6 is a schematic cut-away view of FIG. 5 according to an embodiment;

FIG. 7 is a schematic illustration of a valve seat assembly;

FIG. 8 is a schematic plan view of a valve seat assembly;

FIG. 9 is a cross-sectional view B-B in FIG. 8;

FIG. 10 is a schematic view of a valve seat structure;

FIG. 11 is a schematic view of a valve body construction;

FIG. 12 is a schematic plan view of a valve seat;

FIG. 13 is a mounting member split schematic;

fig. 14 is a schematic view of a first mounting portion structure;

fig. 15 is a schematic view of a second mounting portion structure;

Reference numerals:

100. 110 parts of a door body, 110 parts of a door liner, 120 parts of a liner groove part, 121 parts of an air inlet hole;

200. a mounting member; 201, an air inlet channel 202, a communicating groove part;

210. First mounting portion 211, first channel 212, first connecting portion;

220. a second mounting portion 221, a second channel 222, a second connecting portion;

300. A valve body assembly;

310. Valve seat 311, connecting port 312, valve port 313, lower locating part 314, upper locating part;

320. Valve body 321, valve cover 322, valve core 323 and limit convex part.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

In the description of the present application, it should 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 the orientation or positional relationships shown in the drawings, merely to facilitate describing the present application and 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.

The terms "first," "second," and the like, 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 defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

The refrigeration equipment generally comprises a box body, a door body and a refrigeration system, wherein at least a refrigeration compartment is formed in the box body, and the refrigeration compartment is opened and closed through the door body to meet the requirement of storing and taking articles.

Wherein the refrigeration system performs a refrigeration cycle of the refrigeration apparatus by using a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle comprises a series of processes involving compression, condensation, expansion and evaporation to effect refrigeration of the contents of the tank.

The low-temperature low-pressure refrigerant enters the compressor, the compressor compresses the refrigerant gas into a high-temperature high-pressure state, and the compressed refrigerant gas is discharged. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state formed by condensation in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator may cool the articles in the tank by using latent heat of vaporization of the refrigerant.

The application relates to refrigeration equipment, in particular to a refrigerator, which comprises a refrigerator body, wherein the refrigerator body comprises an outer shell and an inner container, and the outer shell and the inner container are of shell structures.

The outer shell is arranged on the outer side of the inner container, and a refrigerating chamber is formed in the inner container, and can be a refrigerating chamber or a freezing chamber and used for storing articles to be refrigerated.

An insulation inner cavity is formed between the outer shell and the inner container and is used for filling insulation materials, and the insulation materials are used for insulating the inner container and reducing cold energy transmission.

The front end of the case is formed with a food introduction port, which is opened and closed by the door 100.

Referring to fig. 1, the door body 100 also includes a door housing, an upper cover, a lower cover, and a door liner 110, and a heat insulation cavity is also formed between the door housing, the door liner 110, the upper cover, and the lower cover, for filling heat insulation material, so as to reduce the transmission of cold energy from the door body 100.

The sealing part is arranged at the peripheral edge of the door liner 110, and the sealing part is arranged at the connecting gap between the door liner 110 and the door shell, the upper end cover and the lower end cover, so that the door inner cavity can be sealed.

Meanwhile, when the refrigerator door is closed to the corresponding refrigeration compartment, the sealing part can seal the closing gap between the refrigerator door and the refrigerator body, heat exchange between the interior of the storage compartment and the exterior of the refrigerator body is blocked, and the energy consumption of the refrigerator is reduced.

The main body of the sealing part is a soft adhesive tape, a magnet is arranged in the main body of the sealing part, one side of the sealing part is clamped in a groove of the door liner, and the other side of the sealing part is adsorbed on the shell of the box body through the magnet. When the door is opened, the pressure difference between the inside and the outside of the box is overcome besides the adsorption force of the magnet.

Referring to fig. 3, in order to facilitate processing, in some embodiments of the present application, a mounting member 200 is provided between the door liner 110 and the door housing, and an air intake passage 201 is formed in the mounting member 200.

The mounting member 200 is embodied as a foam member or a plastic member, and the bottom of the mounting member 200 is coupled to the lower end cap such that the air inlet passage 201 is also provided at the lower end of the door body 100.

After the door body 100 is closed, air in the refrigerating inner cavity is cooled and contracted, negative pressure is generated relative to the outside, the larger the temperature difference between the inside and the outside is, the larger the negative pressure is, the larger the pressure which needs to be overcome when the door body 100 is opened is, and the influence is generated on the opening process of a client.

Referring to fig. 4, in order to solve the above-described problems, the present application forms at least one air inlet passage 201 for communicating the refrigerating chamber with the outside on the door body 100.

The air intake passage 201 is formed with a first end communicating with the outside and a second end communicating with the cooling chamber, and the air intake passage 201 communicates the cooling chamber with the outside.

Specifically, a first end is formed at a side of the mounting member 200 adjacent to the lower end cap, a second end is formed at a side of the mounting member 200 adjacent to the door liner 110,

Referring to fig. 4-6, a valve body assembly 300 is installed in the intake passage 201, and the valve body assembly 300 includes a valve seat 310 and a valve body 320.

Specifically, the valve seat 310 is detachably connected to the first end of the intake passage 201, and the valve body 320 is movably connected to the valve seat 310 for opening or closing the intake passage 201.

During actual assembly and use, impurities may enter the air inlet channel 201, which affects normal use of the valve body assembly 300, and in order to facilitate maintenance or replacement of the valve body assembly 300, the valve body assembly 300 is detachably connected to the first end of the air inlet channel 201.

When the valve body assembly 300 is abnormal, a user or an inspector removes the valve body assembly 300 from the first end, cleans impurities in the air inlet channel 201 and the valve body assembly 300, and then reassembles the valve body assembly 300 into the air inlet channel 201.

Specifically, referring to fig. 2, a liner groove portion 120 extending toward a door case is formed under the door liner 110, at least one air intake hole 121 is formed on the liner groove portion 120, and a second end of the air intake passage 201 communicates with the air intake hole 121.

The air inlet holes 121 are arranged in the inner container groove part 120, so that certain shielding and hiding can be formed on specific positions of the air inlet holes 121, and influence of the air inlet holes 121 on the appearance of a product is reduced.

The air inlet hole 121 is opposite to the front lower part of the inner container of the box body, so that food cannot be placed, and the air inlet hole 121 cannot be blocked by the food under any condition, and the food placement of consumers is not affected.

If the height H1 of the lower part of the case is smaller than the distance H2 from the air inlet 121 to the lower part of the case, the air inlet 121 is directly opposite to the refrigerating chamber in the case, and since the refrigerating chamber is provided with drawers for placing food, in order to prevent the drawers from colliding with the door body 100 during transportation and use, a gap is required to be left between the drawers and the door liner 110, so that the air inlet 121 is not blocked by the drawer.

Even if the consumer takes the drawer off during use, since the door liner 110 protrudes from the liner groove 120, food can be effectively supported, preventing the food from blocking the air intake hole 121.

Referring to fig. 13 to 15, the mount 200 includes a first mount portion 210 and a second mount portion 220, the first mount portion 210 having a first passage 211 formed thereon, the second mount portion 220 having a second passage 221 formed thereon, and the intake passage 201 being formed by the first passage 211 and the corresponding second passage 221 in common.

The first and second passages 211 and 221 are L-shaped groove portions formed at the first and second mounting portions 210 and 220, respectively, and a diverging transition portion is formed at a first end of the first passage 211 and a first connection portion 212 is formed at a terminal end of the transition portion.

The first end of the second channel 221 is also formed with a diverging transition portion, the end of the transition portion is also formed with a second connection portion 222, and the first connection portion 212 and the second connection portion 222 are larger than the first channel 211 and the second channel 221.

When installed, the valve body assembly 300 is connected between the first connection portion 212 and the second connection portion 222.

After being input from the valve body assembly 300, the air flow enters the air inlet channel 201 through the transition part, and finally is conveyed from the second end of the air inlet channel 201 to the refrigerating chamber through the air inlet hole 121.

The lower end cap is formed with a mounting hole, the first end is communicated with the mounting hole, and the valve seat 310 is detachably connected to the mounting hole.

The mounting hole sets up in the bottom of lower extreme cover, and more conceals, and the mounting hole site is down, is favorable to reducing foreign matter and gets into wherein, is favorable to improving outward appearance nature and security.

The specific connection manner between the valve body assembly 300 and the mounting hole will be described in detail below:

Referring to fig. 4, the valve seat 310 is detachably coupled to the mounting hole by means of a snap-fit coupling.

Referring to fig. 7 to 10, the outer wall of the valve seat 310 is sized to fit the inner diameter of the mounting hole, a plurality of upper positioning portions 314 are formed on the outer wall of the valve seat 310 along the circumferential direction thereof in a dispersed manner, a plurality of lower positioning portions 313 extending outwardly are formed on the lower side of the valve seat 310 along the circumferential direction thereof in a dispersed manner, and the upper positioning portions 314 and the lower positioning portions 313 are respectively connected to the inner and outer sides of the mounting hole.

When the valve seat 310 is mounted, the valve seat 310 is fixed to the mounting hole from top to bottom, and the upper positioning portion 314 and the lower positioning portion 313 are respectively engaged with the inside and outside of the mounting hole to fix the valve seat 310.

The valve seat 310 is an injection molding piece, in order to facilitate demolding of the upper positioning portion 314 and the lower positioning portion 313, the upper positioning portion 314 and the lower positioning portion 313 are arranged at intervals, and then in a specific machining process, the upper and lower demolding can be realized by corresponding molds of the upper positioning portion 314 and the lower positioning portion 313, interference is not generated between the upper and lower demolding molds, and machining is facilitated.

The upper positioning portion 314 is formed with a guiding surface gradually expanding along a direction approaching to the lower positioning portion 313, and in the process of installing the valve seat 310 in the installation hole, the upper positioning portion 314 presses the valve seat 310 inwards under the action of the guiding surface to generate a small-range deformation, when the upper positioning portion 314 completely moves into the installation hole, the valve seat 310 is reset, and the bottom of the upper positioning portion 314 is clamped on the inner wall of the installation hole.

Referring to fig. 12, a height dimension h between the upper and lower positioning portions 314 and 313 is adapted to the bottom thickness of the lower end cap to achieve the connection fixation of the valve seat 310.

The valve seat 310 and the valve body 320 can be integrally detached and replaced from the air inlet channel 201, so that later maintenance is facilitated, and the condition that the whole door body is scrapped due to various problems such as blockage is avoided.

The valve seat 310 is a cylindrical structure with an opening at the bottom, the specific shape of the valve seat 310 can be cylindrical, of course, other shapes such as square cylinder and the like, and the shape of the mounting hole is matched with the shape of the valve seat 310, that is, when the valve seat 310 is cylindrical, the mounting hole is a round hole, and when the valve seat 310 is cylindrical, the mounting hole is a square hole.

Referring specifically to fig. 10, a through connection port 311 and a valve port 312 are formed at the top of the valve seat 310, and the valve body 320 is movable up and down along the connection hole to open or close the valve port 312.

The valve body 320 is covered on the top of the valve seat 310 under the action of its own weight, so as to seal the valve port 312, and close the air inlet channel 201.

When the difference between the air pressure value in the refrigerating compartment and the external air pressure difference is smaller than a preset threshold value, the valve body 320 is covered on the valve seat 310 under the action of self gravity to seal the valve port 312, so that the air inlet channel 201 is kept in a closed state, the sealing performance of the storage compartment is further maintained, and the low-temperature storage environment in the storage compartment is effectively maintained.

When the difference between the air pressure value in the refrigerating compartment and the external air pressure difference is greater than the preset threshold value, the external air flow overcomes the gravity of the valve body 320 under the action of the pressure difference, and the valve body 320 is pushed upwards, the valve port 312 is opened, so that the air inlet channel 201 is opened, and the external air flow is conveyed into the refrigerating compartment.

Referring to fig. 11, in detail, the valve body 320 includes a valve cap 321, a valve body 322 formed at the bottom of the valve cap 321, and a limiting protrusion 323 at the bottom of the valve body 322, and the valve body 322 can move up and down along the connection port 311, so that the valve cap 321 opens or closes the valve port 312.

The connection port 311 is located at an intermediate position of the valve seat 310, and the valve ports 312 are circumferentially spaced apart from each other on the circumferential side of the connection port 311.

The valve core 322 specifically includes a plurality of valve core 322 units, a notch is formed between adjacent valve core 322 units, and a limit protrusion 323 is specifically formed below the valve core 322 units.

The outer side of the limit protrusion 323 is formed with a mounting guide surface which is gradually retracted from top to bottom, and the outer circumferential dimension of the limit protrusion 323 is larger than the dimension of the connecting port 311 without being influenced by external force.

When the valve core 322 is mounted, the valve core 322 moves downwards through the connecting port 311, each valve core 322 unit is retracted under the interaction of the connecting port 311 and the mounting guide surface, and the limit protruding part 323 is expanded outwards under the action of the restoring force of the valve core 323 after passing through the connecting port 311.

The limit protrusion 323 plays a limit role in the upward movement of the valve body 320, and prevents the valve body 320 from being separated from the valve seat 310 under the action of air flow.

In other embodiments, a plurality of air inlet channels 201 are formed on the mounting member 200 at intervals, and the air inlet channels 201 are arranged in a line or in other matrix.

The number of the valve body assembly 300 and the intake passage 201 may be one or plural.

Taking two valve body assemblies 300 and two intake passages 201 as an example, the intake passages 201 are disposed on the mounting member 200 at intervals along the width direction of the door body 100, and a first end of each intake passage 201 is provided with one valve body assembly 300.

A communication groove 202 is formed at one side of the mounting member 200 adjacent to the door liner 110, and the second end of each intake passage 201 communicates with each intake hole 121 through the communication groove 202.

According to the refrigeration equipment, when the pressure difference between the refrigeration compartment and the outside is larger than the preset threshold, the valve body assembly 300 opens the air inlet channel 201 to balance the pressure difference between the refrigeration compartment and the outside, so that the problems of large internal and external pressure difference, laborious opening of the door body 100 and the like caused by low air temperature of the refrigeration compartment are solved;

Valve seat 310 in valve body subassembly 300 can dismantle the connection in inlet channel 201, and valve body 320 movable connection is on valve seat 310, and when entering foreign matter or valve body subassembly 300 damage's the circumstances in inlet channel 201, can make things convenient for valve body subassembly 300 to dismantle the maintenance in the inlet channel 201, maintenance and change with low costs, the operation degree of difficulty reduces.

The application also provides refrigeration equipment, which comprises a box body, a door body 100 and a valve body assembly 300.

A refrigerating chamber is formed in the box body, and a food introducing port is formed at the front end of the refrigerating chamber;

The door body 100 is connected to the cabinet for controlling the opening and closing of the food introduction port, and at least one air inlet passage 201 for communicating the refrigerating chamber with the outside is formed in the door body 100.

The valve body assembly 300 is detachably connected in the air inlet channel 201, and the valve body assembly 300 is configured to open the air inlet channel 201 to balance the pressure difference between the refrigeration chamber and the outside when the difference between the outside air pressure P1 and the air pressure P2 in the refrigeration chamber is greater than a preset threshold.

The valve body assembly 300 may be provided in several ways, or in some combination thereof.

Mode one:

The refrigerating compartment is internally provided with a first pressure sensor, the outside of the box body is provided with a second pressure sensor, the box body is internally provided with a controller, the controller receives pressure signals of the first pressure sensor and the second pressure sensor and compares the pressure signals with a preset threshold value, when the difference between the external air pressure P1 detected by the second pressure sensor and the air pressure P2 in the refrigerating compartment is larger than the preset threshold value, the controller controls the valve body assembly 300 to be opened, the air inlet channel 201 is used for communicating the refrigerating compartment with the outside, and the external air flow is conveyed into the refrigerating compartment to balance the air pressure of the refrigerating compartment and the external air pressure.

Mode two:

In other embodiments, the valve body assembly 300 includes a valve seat 310 and a valve body 320, and in particular, the valve seat 310 is removably coupled to the first end of the intake passage 201, and the valve body 320 is movably coupled to the valve seat 310 for opening or closing the intake passage 201.

The air intake passage 201 is formed with a first end communicating with the outside and a second end communicating with the refrigeration chamber.

Specifically, a first end is formed at a side of the mounting member 200 adjacent to the lower end cap, and a second end is formed at a side of the mounting member 200 adjacent to the door liner 110.

The valve seat 310 is detachably connected to the mounting hole by means of a snap-fit connection.

The outer wall size of disk seat 310 and the internal diameter size looks adaptation of mounting hole, are formed with a plurality of upper positioning portion 314 along its circumference dispersion on the outer wall of disk seat 310, and the below of disk seat 310 is formed with a plurality of lower positioning portion 313 that extend outwards along its circumference dispersion, and upper positioning portion 314 and lower positioning portion 313 are connected respectively in the inside and outside both sides of mounting hole.

When the valve seat 310 is mounted, the valve seat 310 is fixed to the mounting hole from top to bottom, and the upper positioning portion 314 and the lower positioning portion 313 are respectively engaged with the inside and outside of the mounting hole to fix the valve seat 310.

The valve seat 310 has a through connection port 311 and a valve port 312 formed at the top thereof, and the valve body 320 is movable up and down along the connection hole to open or close the valve port 312.

The valve body 320 is covered on the top of the valve seat 310 under the action of its own weight, so as to seal the valve port 312, and close the air inlet channel 201.

When the difference between the air pressure value in the refrigerating compartment and the external air pressure difference is smaller than a preset threshold value, the valve body 320 is covered on the valve seat 310 under the action of self gravity to seal the valve port 312, so that the air inlet channel 201 is kept in a closed state, the sealing performance of the storage compartment is further maintained, and the low-temperature storage environment in the storage compartment is effectively maintained.

When the difference between the air pressure value in the refrigerating compartment and the external air pressure difference is greater than the preset threshold value, the external air flow overcomes the gravity of the valve body 320 under the action of the pressure difference, and the valve body 320 is pushed upwards, the valve port 312 is opened, so that the air inlet channel 201 is opened, and the external air flow is conveyed into the refrigerating compartment.

Mode three:

On the basis of the second mode, the valve body 320 includes a valve cap 321, a valve core 322 formed at the bottom of the valve cap 321, and a limit protrusion 323 located at the bottom of the valve core 322, and the valve core 322 can move up and down along the connection port 311, so that the valve cap 321 opens or closes the valve port 312.

The connection port 311 is located at an intermediate position of the valve seat 310, and the valve ports 312 are circumferentially spaced apart from each other on the circumferential side of the connection port 311.

The valve core 322 specifically includes a plurality of valve core 322 units, a notch is formed between adjacent valve core 322 units, and a limit protrusion 323 is specifically formed below the valve core 322 units.

When the valve core 322 is installed, the valve core 322 moves downwards through the connecting port 311, under the interaction of the connecting port 311 and the limiting convex part 323, each valve core 322 unit is retracted, and after the limiting convex part 323 passes through the connecting port 311, the valve core is outwards expanded under the action of self restoring force.

The limit protrusion 323 plays a limit role in the upward movement of the valve body 320, and prevents the valve body 320 from being separated from the valve seat 310 under the action of air flow.

The three modes can be a mode one, a mode two and a mode three which are used independently or a mode two and a mode three which are used in combination.

The refrigerating equipment relies on the gravity of the valve body assembly 300 to open and close the air inlet channel 201, has simple and reliable structure, does not have failure condition, only needs to increase two materials of the valve body assembly 300 and the mounting piece 200, has low transformation and manufacturing cost, is positioned near the lower part of the door body 100, has little influence on appearance, has no requirement on food placement of consumers, has balanced pressure inside and outside a box, has small opening force and has good consumer experience.

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

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present utility model should be included in the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims (10)

1. A refrigeration appliance, comprising:

A case body in which a refrigerating chamber is formed, the front end of which is formed with a food introduction port;

The door body is connected to the box body and used for controlling the switch of the food inlet port, at least one air inlet channel used for communicating the refrigerating chamber with the outside is formed on the door body, and a first end communicated with the outside and a second end communicated with the refrigerating chamber are formed on the air inlet channel;

The valve body assembly comprises a valve seat and a valve body, wherein the valve seat is detachably connected to the first end of the air inlet channel, and the valve body is movably connected to the valve seat and is used for opening or closing the air inlet channel.

2. A refrigeration device according to claim 1, wherein,

The door body comprises a door shell, an upper end cover, a lower end cover and a door liner, wherein a liner groove part extending towards the door shell is formed below the door liner, at least one air inlet hole is formed in the liner groove part, and the second end of the air inlet channel is communicated with the air inlet hole.

3. A refrigeration device according to claim 2, wherein,

The door inner container is characterized in that a mounting piece is arranged between the door inner container and the door outer shell, the air inlet channel is formed in the mounting piece, the first end is formed on one side, close to the lower end cover, of the mounting piece, the second end is formed on one side, close to the door inner container, of the mounting piece, a mounting hole is formed in the lower end cover, and the first end is communicated with the mounting hole.

4. A refrigeration device according to claim 3, wherein,

The valve seat is detachably connected to the mounting hole, and the valve seat is detachably connected to the mounting hole in a buckling connection mode.

5. A refrigeration device according to claim 3, wherein,

The outer wall size of disk seat with the internal diameter size looks adaptation of mounting hole, be formed with a plurality of upper positioning portion along its circumference dispersion on the outer wall of disk seat, the below of disk seat is formed with a plurality of lower positioning portion that outwards extends along its circumference dispersion, upper positioning portion with lower positioning portion connects respectively the inside and outside both sides of mounting hole.

6. A refrigeration device according to claim 5, wherein,

The upper positioning part and the lower positioning part are arranged at intervals, and the upper positioning part is provided with a guide surface which gradually expands outwards along the direction close to the lower positioning part.

7. A refrigeration device according to claim 1, wherein,

The top of disk seat is formed with connector and valve port that runs through, the valve body includes the valve gap, forms the case in the valve gap bottom and is located the spacing convex part of case bottom, the case can follow the connector reciprocates, so that the valve gap will the valve port is opened or is closed.

8. A refrigeration device according to claim 7, wherein,

The connecting port is positioned at the middle position of the valve seat, and the valve ports are arranged at the periphery of the connecting port along the circumferential direction at intervals.

9. A refrigeration device according to claim 3, wherein,

A plurality of air inlet channels are formed in the mounting piece at intervals, a communication groove part is formed in one side, close to the door liner, of the mounting piece, and the second end of each air inlet channel is communicated with each air inlet hole through the communication groove part.

10. A refrigeration appliance, comprising:

A case body in which a refrigerating chamber is formed, the front end of which is formed with a food introduction port;

The door body is connected to the box body and used for controlling the opening and closing of the food inlet port, and at least one air inlet channel used for communicating the refrigeration cavity with the outside is formed on the door body;

The valve body assembly is detachably connected in the air inlet channel and is configured to open the air inlet channel when the difference between the external air pressure P1 and the air pressure P2 in the refrigerating chamber is larger than a preset threshold value so as to balance the pressure difference between the refrigerating chamber and the outside.