CN116265841A - Refrigerator with a refrigerator body - Google Patents

Abstract

The invention provides a refrigerator, which comprises a refrigerator body, a refrigeration door, an air duct component and an air curtain component, wherein the refrigerator body is provided with a refrigerator body; a refrigerating chamber with an opening at the front side is constructed in the box body; the air duct component is arranged in the box body; the air curtain component comprises an air curtain air channel formed at the top end of the refrigerating chamber and an air curtain fan arranged in the refrigerating air channel, wherein the air curtain fan is used for providing power for cold air in the air curtain air channel and enhancing the air outlet quantity of an air curtain outlet so as to form an air curtain with larger air outlet quantity at the front end of the refrigerating chamber. And the inlet of the air curtain air channel is communicated with the air channel component, and the air curtain component forms an air curtain by utilizing air in the air channel component so as to keep the low temperature of the air curtain, and the temperature of the air curtain is stirred less. The air in the air duct component and the air curtain fan are utilized to form more stable air with larger air output, the air curtain temperature is lower, and the temperature stirring in the refrigerating chamber is reduced.

Description

Refrigerator with a refrigerator body

Technical Field

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

Background

The air curtain is also called an air curtain, is mainly applied to the doors of refrigeration, air conditioning, dustproof and heat-insulating markets, theaters, hotels, restaurants and the like, can isolate indoor and outdoor air and prevent the indoor and outdoor air from carrying out cold and heat exchange, and has the functions of dustproof, pollution prevention and mosquito and fly prevention.

For air-cooled refrigerator products, according to the existing test: when the ambient temperature is 30 ℃, the refrigerator is opened for 10 seconds, the temperature in the refrigerator can rise by 5-6 ℃, and if the refrigerator is opened for 1-2 minutes, the temperature in the refrigerator can reach the ambient temperature. After closing the refrigeration door, the compressor is operated for at least 20 minutes if the compartment temperature is returned to the set temperature. Under the prior art, the refrigerator has a large amount of cold energy loss in the door opening stage, and the refrigerator door opening stage not only can bring huge temperature fluctuation to the compartment and influence the fresh-keeping effect of food materials, but also can correspondingly increase the power consumption of the refrigerator. Therefore, in the prior art, an air curtain structure is arranged in the refrigerator to isolate the air flow inside and outside the refrigerator after the refrigerator is opened.

In the related art, an air curtain structure draws air in a refrigerator compartment, and an air curtain is formed at a front end of the refrigerator compartment using the air in the refrigerator compartment. After the refrigerating chamber is opened, the temperature of the refrigerating chamber and the air curtain are slowly increased, and the temperature of the refrigerating chamber and the air curtain are overlapped, so that the temperature in the refrigerating chamber is quickly increased, and the refrigerating effect of the refrigerating chamber is affected.

Disclosure of Invention

The invention aims to provide a refrigerator which can effectively control the temperature of an air curtain, so that the refrigerating effect in a refrigerating chamber is effectively ensured.

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

according to one aspect of the present invention, there is provided a refrigerator including a cabinet, a refrigeration door, an air duct assembly, and an air curtain assembly; a refrigerating chamber with an opening at the front side is constructed in the box body; the refrigeration door covers the front side of the box body and is rotatably connected to the box body so as to open or close the refrigeration chamber; the air duct component is arranged in the box body and used for providing cold energy for the refrigerating chamber; the air curtain assembly comprises an air curtain air duct formed at the top end of the refrigerating chamber and an air curtain fan arranged in the air duct assembly; the front end of the air curtain air duct in the refrigerating chamber is provided with an air curtain outlet for downwards discharging air; the inlet of the air curtain air duct is communicated with the air duct component.

In some embodiments of the present application, the air duct assembly includes a refrigeration air duct and a refrigeration air duct that are in communication; the refrigerating air duct is communicated with the refrigerating chamber; a refrigerating liner is arranged in the box body, and a partition plate is arranged in the refrigerating liner; the partition board is divided into a refrigerating chamber and a refrigerating air duct which are separated front and back in the refrigerating liner; the air curtain air duct is at least partially positioned outside the refrigeration liner.

In some embodiments of the present application, the air curtain assembly further includes an air port cover plate fixed at a top end of a front side of the refrigeration liner, and an air supply pipe member disposed outside an upper end of the refrigeration liner, wherein front and rear ends of the air supply pipe member are respectively communicated with the refrigeration air duct and the air port cover plate so as to be respectively communicated with the air port cover plate and the refrigeration air duct; the air curtain air channel is formed between the air supply pipe fitting and the air port cover plate; the air curtain outlet is arranged on the air port cover plate.

In some embodiments of the present application, the air port cover plate is disposed on an inner sidewall of a top end of the refrigeration liner, and a front end of the air supply pipe member is downwardly outlet to supply air to an air port cover plate in the refrigeration liner; the air inlet cover plate is provided with a guide inclined surface inclined towards the lower front side at the position communicated with the air supply pipe fitting.

In some embodiments of the present application, the tuyere cover plate includes a lower housing fixed on an inner sidewall of the refrigeration liner, and an upper cover covering the lower housing; the lower shell and the upper cover are enclosed to form an air outlet cavity extending along the left-right direction; the air curtain outlet extends along the left-right direction and is arranged on the lower shell; the air curtain outlet is communicated with the air outlet cavity; the upper cover is provided with an opening communicated with the front end of the air supply pipe fitting.

In some embodiments of the present application, the rear edge of the upper cover is provided with a clamping groove penetrating along the front-rear direction, the lower housing is provided with a clamping protrusion protruding backward, and the clamping protrusion is clamped in the clamping groove to limit the movement of the upper cover in the upward and left-right directions.

In some embodiments of the present application, a portion of the upper cover near the rear edge is continuously bent in an up-down direction, and the clamping groove with an upper end opening is formed at the bent portion.

In some embodiments of the present application, a limiting protrusion protruding downward is formed on the lower surface of the upper cover; the lower shell is provided with a stop protrusion, and the stop protrusion is abutted to the front end of the stop protrusion so as to limit the upper cover to move relative to the lower shell.

In some embodiments of the present application, the air supply pipe includes an air guide pipe fixed on the upper surface of the outer side of the refrigeration liner, and an air guide cover covering the upper part of the air guide pipe; the air guide pipe is provided with an air guide cavity with an opening at the upper end.

In some embodiments of the present application, the air supply pipe is arranged at intervals in the left-right direction; the front ends of the inner cavities of the two air supply pipe fittings are oppositely and obliquely arranged.

According to the technical scheme, the invention has at least the following advantages and positive effects:

in the invention, the air duct component provides cold energy for the refrigerating chamber so as to form a refrigerating environment in the refrigerating chamber. The air curtain fan provides power for cold air in the air curtain air duct, and the air outlet quantity of the air curtain outlet is enhanced, so that an air curtain with larger air outlet quantity is formed at the front end of the refrigerating chamber, the heat insulation performance of the air curtain is enhanced, the air inside and outside the refrigerating chamber is effectively isolated, and the refrigerating performance of the refrigerator is enhanced. And the inlet of the air curtain air channel is communicated with the air channel component, and the air curtain component forms an air curtain by utilizing air in the air channel component so as to keep the low temperature of the air curtain, and the temperature of the air curtain is stirred less. Utilize air and air curtain fan in the wind channel subassembly to form more stable and the wind that the air output is bigger, make the thermal-insulated performance of air curtain better, air curtain temperature is lower, reduces the temperature in the fridge and stir. Thereby effectively ensuring the refrigerating effect in the refrigerating chamber.

The air curtain fan is arranged in the air duct assembly, and the arrangement of the air curtain fan can not reduce the effective volume of the refrigerating chamber, so that the effective volume of the refrigerating chamber is ensured.

Drawings

Fig. 1 is a schematic view of a first embodiment of the refrigerator of the present invention.

Fig. 2 is a schematic cross-sectional structure of a first embodiment of the refrigerator of the present invention.

FIG. 3 is a schematic view of the connection structure of the refrigeration liner and the air curtain assembly of the present invention.

Fig. 4 is an exploded view of the structure shown in fig. 3.

Fig. 5 is a schematic diagram of the structure of fig. 3 from another perspective.

Fig. 6 is a schematic view showing a connection structure of an air supply duct member and an air port cover plate of a refrigerator according to a first embodiment of the present invention.

Fig. 7 is a schematic view showing a structure of a tuyere cover plate of a refrigerator according to a first embodiment of the present invention.

Fig. 8 is a schematic view showing an exploded structure of a tuyere cover plate of a refrigerator according to a first embodiment of the present invention.

Fig. 9 is a schematic view of the structure of a lower case of the refrigerator according to the first embodiment of the present invention.

Fig. 10 is a schematic view showing the structure of an upper cover of a first embodiment of the refrigerator of the present invention.

Fig. 11 is a partial structural schematic view of the structure shown in fig. 3, in which the wind scooper is not shown.

Fig. 12 is an exploded view of an air supply pipe of a first embodiment of the refrigerator according to the present invention.

Fig. 13 is a schematic cross-sectional structure of a second embodiment of the refrigerator of the present invention.

Fig. 14 is a schematic view showing a connection structure of a refrigerating liner and a wind curtain assembly of a second embodiment of the refrigerator according to the present invention.

Fig. 15 is an exploded view of the structure shown in fig. 14.

Fig. 16 is a schematic view showing the structure of an air curtain housing of a second embodiment of the refrigerator according to the present invention.

Fig. 17 is a schematic view showing a structure of a tuyere cover plate of a refrigerator according to a second embodiment of the present invention.

Fig. 18 is a schematic view showing a structure of a tuyere cover plate of a refrigerator according to a second embodiment of the present invention.

The reference numerals are explained as follows: 100. a case; 110. a refrigerating chamber; 120. a freezing chamber; 130. a refrigerating liner; 140. a partition plate; 210. a refrigerating air duct; 220. freezing air duct; 300. an air curtain assembly; 310. an air port cover plate; 311. a lower housing; 312. an upper cover; 313. a wind chamber; 314. wind guide ribs; 315. a clamping protrusion; 316. a stop protrusion; 317. an opening; 318. a clamping groove; 319. a limit protrusion; 320. air supply pipe fittings; 321. an air guide pipe; 322. an air guide cover; 323. an air guide cavity; 330. an air curtain fan; 340. an air curtain outlet; 350. an air curtain housing; 351. an air port cover plate; 352. air supply pipe fittings; 353. an air outlet cavity; 354. an air inlet; 355. a guide slope; 356. a support arm; 357. and an air supply channel.

Detailed Description

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

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 related art, an air curtain structure draws air in a refrigerator compartment, and an air curtain is formed at a front end of the refrigerator compartment using the air in the refrigerator compartment. After the refrigerating chamber is opened, the temperature of the refrigerating chamber and the air curtain are slowly increased, and the temperature of the refrigerating chamber and the air curtain are overlapped, so that the temperature in the refrigerating chamber is quickly increased, and the refrigerating effect of the refrigerating chamber is affected.

For convenience of description and understanding, a direction of the refrigerator facing a user is taken as a front direction, a direction facing away from the user is taken as a rear direction, a vertical direction is taken as an up-down direction, and a width direction of the refrigerator is taken as a left-right direction.

Fig. 1 is a schematic view of a first embodiment of the refrigerator of the present invention. Fig. 2 is a schematic cross-sectional structure of a first embodiment of the refrigerator of the present invention. Fig. 3 is a schematic view of the connection structure of the refrigeration liner 130 and the air curtain assembly 300 according to the present invention. Fig. 4 is an exploded view of the structure shown in fig. 3.

Referring to fig. 1 to 4, a refrigerator is an appliance that maintains a constant low temperature to store articles. The refrigerator in this embodiment may be a refrigerated showcase or a sideboard, and the following description will be given by taking the refrigerator as an example. The ice chest pack includes a chest 100, an air duct assembly provided in the chest 100, an air curtain assembly 300 provided in the chest 100, and a refrigerating assembly (not shown) provided in the chest 100.

The refrigerator body 100 is internally provided with a refrigerating chamber 110 and a freezing chamber 120 with front openings, the refrigerating chamber 110 and the freezing chamber 120 are arranged at intervals up and down, and the refrigerating assembly transmits cold energy to air in the air duct assembly so as to obtain cold air in the air duct assembly. The air duct assembly can be selectively communicated with the inside of the refrigerating chamber 110 or the freezing chamber 120 to guide air in the air duct assembly into the refrigerating chamber 110 and/or the freezing chamber 120, so as to be capable of refrigerating the refrigerating chamber 110 and the freezing chamber 120, respectively, and maintaining refrigerating and freezing environments.

In this embodiment, an air inlet and an air return opening which are communicated with the air duct assembly are arranged in each of the refrigerating chamber 110 and the freezing chamber 120, so that air in the refrigerating chamber 110 and the freezing chamber 120 can circulate through the air duct assembly respectively, and the air in the air duct assembly can transfer cold energy into the refrigerating chamber 110 and the freezing chamber 120 respectively. In some embodiments, temperature sensors are provided within both the refrigerator compartment 110 and the freezer compartment 120 for detecting real-time temperatures within the refrigerator compartment 110 and the freezer compartment 120.

In this embodiment, the air duct assembly includes a refrigeration air duct 210 and a freezing air duct 220 that are communicated with each other; the refrigerating duct 210 communicates with the refrigerating compartment 110, and is configured to supply cold to the refrigerating compartment 110. The freezing duct 220 is used to communicate with the freezing chamber 120 to supply cold to the freezing chamber 120. Air doors are provided at air inlets of the refrigerating chamber 110 and the freezing chamber 120, respectively, to control air intake into the freezing chamber 120 and the refrigerating chamber 110.

The front side of the refrigerating compartment 110 is provided with a refrigerating door (shown in the drawing) which is closed to the front side of the cabinet 100 and rotatably coupled to the cabinet 100 to enable opening or closing of the refrigerating compartment 110, and taking and putting of articles in the refrigerating compartment 110.

The connection relation of the specific structure of the case 100 is referred to the structure of the case 100 in the related art, and will not be described herein.

In this embodiment, the air curtain assembly 300 is disposed at the top end of the refrigerating chamber 110, and is used to form an air curtain at the front end of the refrigerating chamber 110 after the refrigerating chamber 110 is opened, so as to block heat exchange between the inside and the outside of the refrigerating chamber 110, and effectively ensure the low temperature environment of the refrigerating chamber 110.

The air duct assembly is provided in the cabinet 100 and can provide cold to the refrigerating compartment 110 and the freezing compartment 120. The specific structure and positional relationship of the air duct assembly are not described herein in detail with reference to the structure and positional relationship of the air duct assembly in the related art.

The refrigeration assembly comprises a compressor, a condenser, an evaporator, capillary vessels and the like. The specific structure and connection relation of the refrigeration assembly refer to the refrigeration assembly in the related art, and are not described herein.

Fig. 5 is a schematic diagram of the structure of fig. 3 from another perspective.

Referring to fig. 1 to 5, a refrigerating liner 130 is provided in the case 100, and a partition 140 is provided in the refrigerating liner 130; the partition 140 is divided into the refrigerating compartments 110 and the refrigerating air ducts 210, which are spaced front and rear, in the refrigerating liner 130.

In this embodiment, the air curtain assembly 300 includes an air inlet cover 310 fixed on the front top of the refrigerating liner 130, an air supply pipe 320 disposed outside the upper end of the refrigerating liner 130, and an air curtain fan 330 disposed in the refrigerating duct 210. The front and rear ends of the air supply pipe 320 are respectively communicated with the refrigerating air duct 210 and the tuyere cover plate 310 to be respectively communicated with the tuyere cover plate 310 and the refrigerating air duct 210; a curtain air duct is formed between the air supply pipe 320 and the air flap 310. An air curtain duct is formed at the top end of the refrigerating compartment 110. The air curtain outlet 340 is formed on the air port cover 310, and the air curtain outlet 340 is provided at the front end of the refrigerating compartment 110 to discharge air downward, and after the refrigerating door is opened, the air curtain outlet 340 discharges air downward, and the air curtain is formed at the front end of the refrigerating compartment 110.

Fig. 6 is a schematic view illustrating a connection structure of an air supply pipe 320 and a tuyere cover plate 310 of a refrigerator according to a first embodiment of the present invention. Fig. 7 is a schematic structural view of a tuyere cover plate 310 of a refrigerator according to a first embodiment of the present invention. Fig. 8 is a schematic exploded view of a tuyere cover plate 310 of a refrigerator according to a first embodiment of the present invention.

Referring to fig. 3 to 8, in the present embodiment, the tuyere cover plate 310 is disposed on the inner sidewall of the top end of the refrigeration liner 130, and the front end of the air supply pipe 320 is downwardly opened to supply air to the tuyere cover plate 310 in the refrigeration liner 130. The air supply pipe 320 is disposed outside the refrigerating liner 130, and the air supply pipe 320 does not occupy the space of the refrigerating liner 130, so as to increase the volume of the refrigerating chamber 110.

In this embodiment, the tuyere cover plate 310 is located in the refrigeration liner 130, and the air supply pipe 320 is located outside the refrigeration liner 130, so that the air curtain air duct portion is located outside the refrigeration liner 130. In some embodiments, the tuyere cover plate 310 is located on the upper surface of the outer circumference of the refrigerating liner 130, so that the air curtain air duct is located entirely outside the refrigerating liner 130, further increasing the effective volume of the refrigerating chamber 110.

Fig. 9 is a schematic view of the structure of the lower case 311 of the first embodiment of the refrigerator of the present invention.

Referring to fig. 3 to 9, the tuyere cover plate 310 includes a lower housing 311 fixed on an inner sidewall of the refrigerating liner 130, and an upper cover 312 covering the lower housing 311; the lower case 311 and the upper cover 312 are enclosed to form an air outlet chamber 313 extending in the left-right direction; the air curtain outlet 340 extends along the left-right direction and is arranged on the lower shell 311; the air curtain outlet 340 communicates with the air outlet chamber 313. The air outlet chamber 313 and the air curtain outlet 340 extend in the left-right direction, respectively, to form an air duct disposed in the left-right direction at the front end of the refrigerating compartment 110.

The lower shell 311 is provided with a downward and forward inclined air guide rib 314 at a position corresponding to the outlet of the air supply pipe 320, and a downward and forward inclined guide inclined plane is arranged at the communication position of the air inlet cover plate 310 and the air supply pipe 320, so that air in the air supply pipe 320 enters the air inlet cover plate 310 more uniformly, and an air curtain at the air curtain outlet 340 is more uniform.

The lower housing 311 is provided with a convex locking part 315 protruding backward for locking and limiting the upper cover 312. The lower housing 311 is provided with a stopper protrusion 316 on the lower housing 311, and a rear surface of the stopper protrusion 316 abuts against the upper cover 312 to restrict forward movement of the upper cover 312 relative to the lower housing 311.

Fig. 10 is a schematic structural view of an upper cover 312 of the first embodiment of the refrigerator of the present invention.

Referring to fig. 6 to 10, the upper cover 312 is covered over the lower housing 311, and an opening 317 communicating with the front end of the air supply pipe 320 is formed in the upper cover 312. The opening 317 is opposite to the wind-guiding rib 314 on the lower housing 311.

The part of the upper cover 312 near the rear edge is continuously bent in the up-down direction, and a clamping groove 318 with an opening at the upper end is formed at the bent part, the clamping groove 318 is penetrated back and forth, the upper cover 312 moves back and forth, so that the clamping protrusion 315 of the lower shell 311 is positioned in the clamping groove 318, and the movement of the upper cover 312 in the up-and-left direction is limited.

In some embodiments, a portion of the lower surface of the upper cover 312 near the rear edge is provided with a protrusion, and the protrusion is provided with a slot 318 penetrating from front to rear.

In this embodiment, a limiting protrusion 319 protruding downward is formed on the lower surface of the upper cover 312; the stopper protrusion 319 abuts against the front end of the stopper protrusion 316 on the lower housing 311 to restrict the previous movement of the upper cover 312 with respect to the lower housing 311.

When the upper cover 312 is mounted on the lower housing 311, the locking groove 318 of the upper cover 312 and the locking protrusion 315 of the lower housing 311 are aligned, and the upper cover 312 is moved forward to engage the locking protrusion 315 in the locking groove 318, so that the stopper protrusion 319 abuts against the stopper protrusion 316.

In this embodiment, a notch is formed at the front edge of the upper cover 312, a stopper post is formed on the lower housing 311 corresponding to the notch, and a fixing hole is formed on the stopper post, so that the upper cover 312 can be fixed on the lower housing 311 by a bolt.

Fig. 11 is a partial schematic view of the structure shown in fig. 3, in which the wind guiding cover 322 is not shown. Fig. 12 is an exploded view of a blowing pipe 320 of a first embodiment of the refrigerator according to the present invention.

Referring to fig. 3 to 12, the air supply pipe 320 is disposed at the top of the outer circumference of the refrigerating liner 130, and the inlet of the air supply pipe 320 is communicated with the refrigerating duct 210. The air supply pipe 320 comprises an air guide pipe 321 fixed on the upper surface of the outer side of the refrigeration liner 130 and an air guide cover 322 covered on the upper part of the air guide pipe 321; the air duct 321 is formed with an air guide chamber 323 having an upper end opened.

The air guide pipe 321 is a foam pipe, the air guide cover 322 is made of plastic material, and the air guide cover 322 made of plastic material is thinner than the air guide cover 322 made of foam material on the premise of ensuring the structural strength of the air supply pipe fitting 320, so that the air guide cover 322 made of plastic material occupies smaller space of the foaming layer of the box body 100, and is convenient to install in the foaming layer of the box body 100. The foam material of the air guide pipe 321 can effectively preserve heat and effectively avoid the loss of cold in the air supply pipe 320.

The air supply pipe 320 is arranged at intervals in the left-right direction; the front ends of the inner cavities of the two air supply pipe fittings are arranged in opposite directions in an inclined manner, so that air at the outlets of the two air supply pipe fittings 320 is conveyed to the middle part of the air port cover plate 310 along the left-right direction, and the air curtain formed at the air curtain outlet 340 of the air port cover plate 310 is more uniform.

In this embodiment, the air inlet cover 310 is provided with an inclined surface corresponding to the air supply pipe 320 and inclined forward toward the inside of the box 100, so as to guide air.

Fig. 13 is a schematic cross-sectional structure of a second embodiment of the refrigerator of the present invention. Fig. 14 is a schematic view showing a connection structure of a refrigerating liner and a wind curtain assembly of a second embodiment of the refrigerator according to the present invention. Fig. 15 is an exploded view of the structure shown in fig. 14.

Referring to fig. 13 to 15, a refrigerator pack case 100, an air duct assembly provided in the case 100, an air curtain assembly 300 provided in the case 100, and a refrigerating assembly (not shown) provided in the case 100.

The refrigerator body 100 is internally provided with a refrigerating chamber 110 and a freezing chamber 120 with front openings, the refrigerating chamber 110 and the freezing chamber 120 are arranged at intervals up and down, and the refrigerating assembly transmits cold energy to air in the air duct assembly so as to obtain cold air in the air duct assembly. The air duct assembly can be selectively communicated with the inside of the refrigerating chamber 110 or the freezing chamber 120 to guide air in the air duct assembly into the refrigerating chamber 110 and/or the freezing chamber 120, so as to be capable of refrigerating the refrigerating chamber 110 and the freezing chamber 120, respectively, and maintaining refrigerating and freezing environments.

In this embodiment, an air inlet and an air return opening which are communicated with the air duct assembly are arranged in each of the refrigerating chamber 110 and the freezing chamber 120, so that air in the refrigerating chamber 110 and the freezing chamber 120 can circulate through the air duct assembly respectively, and the air in the air duct assembly can transfer cold energy into the refrigerating chamber 110 and the freezing chamber 120 respectively. In some embodiments, temperature sensors are provided within both the refrigerator compartment 110 and the freezer compartment 120 for detecting real-time temperatures within the refrigerator compartment 110 and the freezer compartment 120.

In this embodiment, the air duct assembly includes a refrigeration air duct 210 and a freezing air duct 220 that are communicated with each other; the refrigerating duct 210 communicates with the refrigerating compartment 110, and is configured to supply cold to the refrigerating compartment 110. The freezing duct 220 is used to communicate with the freezing chamber 120 to supply cold to the freezing chamber 120. Air doors are provided at air inlets of the refrigerating chamber 110 and the freezing chamber 120, respectively, to control air intake into the freezing chamber 120 and the refrigerating chamber 110.

The front side of the refrigerating compartment 110 is provided with a refrigerating door (shown in the drawing) which is closed to the front side of the cabinet 100 and rotatably coupled to the cabinet 100 to enable opening or closing of the refrigerating compartment 110, and taking and putting of articles in the refrigerating compartment 110.

The connection relation of the specific structure of the case 100 is referred to the structure of the case 100 in the related art, and will not be described herein.

In this embodiment, the air curtain assembly 300 is disposed at the top end of the refrigerating chamber 110, and is used to form an air curtain at the front end of the refrigerating chamber 110 after the refrigerating chamber 110 is opened, so as to block heat exchange between the inside and the outside of the refrigerating chamber 110, and effectively ensure the low temperature environment of the refrigerating chamber 110.

The air duct assembly is provided in the cabinet 100 and can provide cold to the refrigerating compartment 110 and the freezing compartment 120. The specific structure and positional relationship of the air duct assembly are not described herein in detail with reference to the structure and positional relationship of the air duct assembly in the related art.

The specific structure and connection relation of the refrigeration assembly refer to the refrigeration assembly in the related art, and are not described herein.

Referring again to fig. 13 to 15, a refrigerating liner 130 is provided in the case 100, and a partition 140 is provided in the refrigerating liner 130; the partition 140 is divided into the refrigerating compartments 110 and the refrigerating air ducts 210, which are spaced front and rear, in the refrigerating liner 130.

In this embodiment, the air curtain assembly 300 includes an air curtain housing 350 attached to the top surface of the inner side of the refrigeration liner 130, and an air curtain blower 320 disposed in the refrigeration duct 210. The air curtain housing 350 is provided with an open-ended channel, and an air curtain air duct 330 is defined between the air curtain housing 350 and the upper sidewall of the refrigeration liner 130. An air curtain duct 330 is formed at the top end of the refrigerating compartment 110. The front end of the air curtain duct 330 is formed with a downward air-out air curtain outlet 340, and the front end of the refrigerating compartment 110 is provided with a downward air-out air curtain outlet 340, and after the refrigerating door is opened, the air curtain outlet 340 downward air-out, and the front end of the refrigerating compartment 110 is formed with an air curtain.

The use of the air curtain housing 350 and the upper wall of the refrigeration liner 130 to form the air curtain air duct 330 reduces material usage and saves costs. The upper portion of the air curtain housing 350 is closed by the refrigerating liner 130, so that the air curtain housing 350 has a smaller thickness in the up-down direction on the basis of ensuring that the air curtain housing 350 has a large gap for air flow in the up-down direction, thereby effectively ensuring the volume of the refrigerating chamber 110.

In this embodiment, the rear end of the air curtain housing 350 extends into the cooling air duct 210, the air curtain blower 320 delivers air in the cooling air duct 210 into the air curtain air duct 330, and the air in the cooling air duct 210 is utilized to form an air curtain at the front end of the cooling compartment 110.

Fig. 16 is a schematic structural view of an air curtain housing 350 of a second embodiment of the refrigerator of the present invention. Fig. 17 is a schematic structural view of a tuyere cover plate 351 of a refrigerator according to a second embodiment of the present invention.

Referring to fig. 13 to 17, the air curtain housing 350 includes an air port cover plate 351 attached to the front upper wall of the refrigeration liner 130, and an air supply pipe 352 attached to the upper wall of the refrigeration liner 130, wherein the front and rear ends of the air supply pipe 352 are respectively connected to the refrigeration air duct 210 and the air port cover plate 351 so as to be respectively connected to the air port cover plate 351 and the refrigeration air duct 210; the air curtain outlet 340 is provided on the tuyere cover plate 351.

The upper end of the tuyere cover plate 351 is opened, and an air outlet chamber 353 extending in the left-right direction is formed between the tuyere cover plate 351 and the upper wall of the refrigerating liner 130. The air curtain outlet 340 extends in the left-right direction and is provided on the air port cover plate 351; the air curtain outlet 340 communicates with the air outlet chamber 353. The air outlet 353 and the air curtain outlet 340 extend correspondingly in the left-right direction to form an air duct disposed in the left-right direction at the front end of the refrigerating compartment 110.

An air inlet 354 communicated with the air supply pipe 352 is formed in the rear side wall of the air outlet cavity 353, and air in the air supply pipe 352 is conveyed to the air outlet cavity 353 through the air inlet 354.

In this embodiment, two air inlets 354 are arranged at intervals, and two air inlets 354 are arranged at intervals along the left-right direction. In some embodiments, the air intakes 354 are provided in one or more.

An arc-shaped guide inclined surface 355 is arranged in the air outlet cavity 353 and close to the air inlet 354, and the guide inclined surface 355 guides the air conveyed from the air inlet 354 to the air conveyed along the front-back direction of the air supply pipe 352 to the left-right direction. In this embodiment, the guide slope 355 is a curved surface, and in some embodiments, the guide slope 355 is a planar surface.

In this embodiment, two guide inclined surfaces 355 are provided, and the two guide inclined surfaces 355 are disposed opposite to each other so as to guide the air supplied from the air intake 354 in the left-right direction. In some embodiments, the guide slope 355 is provided as one.

In this embodiment, the tuyere cover plate 351 is provided with a support arm 356 extending rearward for supporting the air supply tube 352. The support arm 356 is located rearward of the outlet plenum 353.

Fig. 18 is a schematic structural view of a tuyere cover plate 351 of a refrigerator according to a second embodiment of the present invention.

Referring to fig. 13 to 18, the air supply pipe 352 is disposed in the front-rear direction, and the air supply pipe 352 extends in a straight line or in an arc forward direction. An upper portion of the air supply pipe 352 is opened, an air supply passage 357 extending in a front-rear direction is formed between the air supply pipe 352 and an upper wall of the refrigerating liner 130, and a rear of the air supply passage 357 communicates with the refrigerating duct 210 to convey air in the refrigerating duct 210 into the tuyere cover plate 351.

In this embodiment, the front end of the air supply pipe 352 is abutted against the air inlet cover plate 351 and supported on the supporting arm 356 to mount the air supply pipe 352 on the air inlet cover plate 351, in some embodiments, the air inlet cover plate 351 has a clamping hole at the air inlet 354, and the front end of the air supply pipe 352 extends into and is limited in the clamping hole to mount the air supply pipe 352 on the air inlet cover plate 351.

In this embodiment, two air supply pipes 352 are disposed opposite to two air inlets 354 on the air flap 351. The two air supply pipe members 352 are disposed at intervals in the left-right direction and are disposed near the left and right edges of the refrigerator, respectively. In some embodiments, one or more of the supply air tubes 352 are provided to correspond to the air intakes 354.

In this embodiment, the front ends of the inner cavities of the two air supply pipes 352 are inclined in opposite directions, so that the air entering the air outlet cavity 353 is guided in opposite directions in the left-right direction, so that the air in the air outlet cavity 353 is uniform, and the air curtain is uniform.

In this embodiment, the air supply pipe 352 is made of foam material, so as to effectively ensure the heat preservation of the air in the air supply pipe 352, reduce the loss of cold energy, and effectively ensure the low temperature of the air curtain.

In the present invention, the refrigerating duct 210 provides cold to the refrigerating compartment 110, so that a refrigerating environment is formed in the refrigerating compartment 110. The air curtain blower 330 provides power for the cold air in the air curtain air duct, and enhances the air output of the air curtain outlet 340, so as to form an air curtain with larger air output at the front end of the refrigerating chamber 110, enhance the heat insulation performance of the air curtain, effectively isolate the air inside and outside the refrigerating chamber 110, and enhance the refrigerating performance of the refrigerator. And the inlet of the air curtain air channel is communicated with the refrigerating air channel 210, the air curtain assembly 300 forms an air curtain by utilizing the air in the refrigerating air channel 210 so as to keep the low temperature of the air curtain, and the temperature of the air curtain is more stir less. The air in the refrigerating duct 210 and the air curtain fan 330 are utilized to form more stable air with larger air output, so that the heat insulation performance of the air curtain is better, the temperature of the air curtain is effectively controlled, and the refrigerating effect in the refrigerating chamber 110 is effectively ensured.

The air curtain blower 330 is disposed in the refrigerating duct 210, and the effective volume of the refrigerating chamber 110 is ensured without reducing the effective volume of the refrigerating chamber 110 due to the air curtain blower 330.

While the invention 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 invention 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 (10)

1. A refrigerator, comprising:

a case body in which a refrigerating chamber having a front opening is formed;

the refrigerating door is covered on the front side of the box body and is rotatably connected to the box body so as to be capable of opening or closing the refrigerating chamber;

the air duct assembly is arranged in the box body and used for providing cold energy for the refrigerating chamber;

an air curtain assembly comprising an air curtain air duct formed at the top end of the refrigerating chamber and an air curtain fan arranged in the air duct assembly; the front end of the air curtain air duct in the refrigerating chamber is provided with an air curtain outlet for downwards discharging air; the inlet of the air curtain air duct is communicated with the air duct component.

2. The refrigerator of claim 1, wherein the air duct assembly comprises a refrigeration air duct and a freezing air duct that are communicated; the refrigerating air duct is communicated with the refrigerating chamber; a refrigerating liner is arranged in the box body, and a partition plate is arranged in the refrigerating liner; the partition board is divided into a refrigerating chamber and a refrigerating air duct which are separated front and back in the refrigerating liner; the air curtain air duct is at least partially positioned outside the refrigeration liner.

3. The refrigerator of claim 2, wherein the air curtain assembly further comprises an air port cover plate fixed at the top end of the front side of the refrigerating liner, and an air supply pipe fitting arranged outside the upper end of the refrigerating liner, and the front and rear ends of the air supply pipe fitting are respectively communicated with the refrigerating air duct and the air port cover plate so as to be respectively communicated with the air port cover plate and the refrigerating air duct; the air curtain air channel is formed between the air supply pipe fitting and the air port cover plate; the air curtain outlet is arranged on the air port cover plate.

4. The refrigerator of claim 3, wherein the air flap panel is disposed on an inner sidewall of a top end of the refrigerating liner, and a front end of the air supply pipe is downwardly discharged to supply air to an air port cover plate in the refrigerating liner; the air inlet cover plate is provided with a guide inclined surface inclined towards the lower front side at the position communicated with the air supply pipe fitting.

5. The refrigerator of claim 3, wherein the tuyere cover plate comprises a lower case fixed on an inner sidewall of the refrigerating liner, and an upper cover provided to cover the lower case; the lower shell and the upper cover are enclosed to form an air outlet cavity extending along the left-right direction; the air curtain outlet extends along the left-right direction and is arranged on the lower shell; the air curtain outlet is communicated with the air outlet cavity; the upper cover is provided with an opening communicated with the front end of the air supply pipe fitting.

6. The refrigerator of claim 5, wherein a rear edge of the upper cover is provided with a clamping groove penetrating in a front-rear direction, the lower housing is provided with a clamping protrusion protruding backward, and the clamping protrusion is clamped in the clamping groove to limit the movement of the upper cover in an upward direction and a left-right direction.

7. The refrigerator of claim 6, wherein a portion of the upper cover near the rear edge is continuously bent in the up-down direction, and the catching groove having an upper end opened is formed at the bent portion.

8. The refrigerator of claim 5, wherein a lower surface of the upper cover is formed with a limit protrusion protruding downward; the lower shell is provided with a stop protrusion, and the stop protrusion is abutted to the front end of the stop protrusion so as to limit the upper cover to move relative to the lower shell.

9. The refrigerator of claim 3, wherein the air supply pipe comprises an air guide pipe fixed on the upper surface of the outer side of the refrigerating liner and an air guide cover covered on the upper part of the air guide pipe; the air guide pipe is provided with an air guide cavity with an opening at the upper end.

10. The refrigerator of claim 3, wherein the air supply pipe is provided in two at intervals in a left-right direction; the front ends of the inner cavities of the two air supply pipe fittings are oppositely and obliquely arranged.

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