CN115615101A - Refrigerator - Google Patents

Abstract

The application discloses refrigerator includes: the refrigerator comprises a box body, a refrigerating chamber and a temperature changing chamber, wherein a freezing chamber, a refrigerating chamber and a temperature changing chamber with front side openings are formed in the box body; the first connecting piece is arranged at the back of the freezing chamber and the back of the temperature-changing chamber, a first air channel, a second air channel and a third air channel which are communicated are arranged in the first connecting piece at intervals, and two ends of the first air channel are respectively communicated with the air outlet of the refrigerating chamber and the air return opening; two ends of the second air duct are respectively communicated with the air supply outlet of the temperature-variable chamber and the air inlet of the temperature-variable chamber; and two ends of the third air duct are respectively communicated with the air outlet of the temperature-variable chamber and the air return opening. Through setting up first connecting piece in this application, set up first wind channel, second wind channel and third wind channel jointly on first connecting piece, make a connecting piece of variable temperature room air supply, walk-in room return air and variable temperature room return air sharing, save the pipeline setting, it is more convenient to install to effective reduce cost.

Description

Refrigerator with a door

Technical Field

The disclosure belongs to the technical field of household appliances, and particularly relates to a refrigerator.

Background

The multi-temperature zone refrigerator refers to a refrigerator having a plurality of temperature zones, typically a side-by-side three-temperature zone refrigerator having a freezing chamber, a refrigerating chamber and a temperature-variable chamber. The traditional multi-temperature-zone refrigerator is mostly composed of a plurality of refrigerating systems, and refrigeration of different temperature zones of the refrigerator is realized by selecting different refrigerating systems, but the mode has a complex structure, the energy consumption load of the refrigerator is large, and the cost is high. Present some multi-temperature-zone refrigerator accessible set up single refrigerating system in the freezer to carry cold wind refrigeration to walk-in room and temperature-changing room through a plurality of blast pipe ways, and a plurality of return air pipeline to the freezer return air, in order to realize the circulated air supply, thereby reduce cost and refrigerator energy consumption, like this, the pipeline is more, and the installation is inconvenient, and the cost is still relatively higher.

Disclosure of Invention

The utility model aims to provide a refrigerator can solve single refrigerating system's multi-temperature-zone refrigerator air supply and return air pipeline more, and the installation is inconvenient and the cost is higher problem relatively.

The application discloses refrigerator includes: the refrigerator comprises a refrigerator body, a refrigerating chamber, a temperature-changing chamber and a refrigerating chamber, wherein a front opening of the refrigerator body is formed in the refrigerator body, an air outlet of the refrigerating chamber is formed in the inner wall of the refrigerating chamber, an air inlet and an air outlet of the temperature-changing chamber are formed in the inner wall of the temperature-changing chamber, and an air return opening is formed in the inner wall of the refrigerating chamber; the freezing chamber is communicated with the refrigerating chamber to supply cold air to the refrigerating chamber; an air cavity is arranged in the freezing chamber, and a freezing chamber air inlet and a variable temperature chamber air outlet are formed in the air cavity; the refrigerating fan is arranged in the air cavity and used for blowing cold air to the air inlet of the freezing chamber and the air outlet of the variable temperature chamber; the first connecting piece is arranged at the back of the freezing chamber and the back of the temperature-changing chamber, a first air channel, a second air channel and a third air channel which are communicated are arranged in the first connecting piece at intervals, and two ends of the first air channel are respectively communicated with the air outlet of the refrigerating chamber and the air return opening; two ends of the second air duct are respectively communicated with the air supply outlet of the temperature-variable chamber and the air inlet of the temperature-variable chamber; and two ends of the third air duct are respectively communicated with the air outlet of the temperature-variable chamber and the air return opening.

In an exemplary embodiment of the present disclosure, the refrigerating chamber and the temperature-changing chamber are spaced up and down, and the refrigerating chamber and the temperature-changing chamber are located at the same side of the freezing chamber; the first air channel comprises a first section and a second section connected with the first section, the first section is communicated with the air outlet of the refrigerating chamber, the second section is communicated with the air return opening, the second section protrudes towards the front side relative to the first section, the second air channel and the third air channel are vertically spaced, the second air channel is longitudinally spaced from the first section, and the third air channel is vertically spaced from the second section.

In an exemplary embodiment of the present disclosure, a cover plate extending vertically is disposed in the freezing chamber, the cover plate and the rear wall of the freezing chamber enclose to form the air cavity, the air inlet of the freezing chamber is disposed at the upper portion of the cover plate, and the air outlet of the temperature-changing chamber is disposed on the side wall of the freezing chamber facing the temperature-changing chamber corresponding to the air cavity.

In an exemplary embodiment of the disclosure, the first connecting part is located between the outer side wall of the freezing chamber and the outer side wall of the temperature-varying chamber, the air inlet and the air outlet of the temperature-varying chamber are arranged on the side wall of the temperature-varying chamber facing the freezing chamber, the air return opening is arranged on the side wall of the freezing chamber facing the temperature-varying chamber, two ends of the second air channel are respectively aligned with the air inlet and the air outlet of the temperature-varying chamber, two ends of the third air channel are respectively aligned with the air outlet and the air return opening of the temperature-varying chamber, the air inlet and the air return opening of the temperature-varying chamber are arranged at an upper interval and a lower interval, and the air inlet and the air outlet of the temperature-varying chamber are arranged at an upper interval and a lower interval.

In an exemplary embodiment of the disclosure, the first connecting element includes a first housing and a second housing, the first housing covers the second housing, the first air duct and the third air duct are formed between the first housing and the second housing, and the second air duct is disposed on the first housing or the second housing.

In an exemplary embodiment of the present disclosure, a refrigerating chamber air supply outlet is formed at an upper portion of a rear wall of a freezing chamber corresponding to the air chamber, and a refrigerating chamber air inlet is formed at an upper portion of a rear wall of the refrigerating chamber; the refrigerator also comprises a second connecting piece, the second connecting piece is arranged on the backs of the refrigerating chamber and the freezing chamber, a fourth air duct is formed in the second connecting piece, and two ends of the fourth air duct are respectively communicated with the refrigerating chamber air supply outlet and the refrigerating chamber air inlet.

In an exemplary embodiment of the disclosure, a first air guiding rib is further disposed on an inner side of the cover plate above the refrigerating fan, and the first air guiding rib separates the freezing chamber air inlet from the refrigerating chamber air supply outlet and is used for guiding cold air blown by the refrigerating fan to the freezing chamber air inlet and the refrigerating chamber air supply outlet respectively.

In an exemplary embodiment of the disclosure, the refrigeration fan is disposed in the air cavity corresponding to a middle position of the freezing chamber and close to the variable temperature chamber air supply outlet, a second air guiding rib is further disposed on an air outlet side of the refrigeration fan, and the second air guiding rib is used for guiding cold air blown by the refrigeration fan to the variable temperature chamber air supply outlet.

In an exemplary embodiment of the disclosure, the second connector includes a third housing and a fourth housing, the third housing covers the fourth housing, and a fourth air duct is formed between the third housing and the fourth housing.

In an exemplary embodiment of the present disclosure, a first air door is further disposed at the air inlet of the refrigerating chamber, and is used for controlling opening and closing of the air inlet of the refrigerating chamber; and a second air door is further arranged at the air inlet of the temperature-changing chamber and used for controlling the opening and closing of the air inlet of the temperature-changing chamber.

The scheme of the application has the following beneficial effects:

through setting up first connecting piece in this application, set up first wind channel, second wind channel and third wind channel jointly on first connecting piece, make a connecting piece of variable temperature room air supply, walk-in room return air and variable temperature room return air sharing, save the pipeline setting, it is more convenient to install to effective reduce cost.

Other features and advantages of the present application will be apparent from the following detailed description, or may be learned by practice of the application.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty.

Fig. 1 is a schematic front side structure view of a refrigerator according to the present embodiment.

Fig. 2 is a schematic diagram of a rear side structure of the refrigerator according to the embodiment.

Fig. 3 is a partial structural view of the rear side of the refrigerator according to the present embodiment.

Fig. 4 is a side view of a freezing chamber of a refrigerator according to the present embodiment.

Fig. 5 is a side view of the temperature varying chamber of the refrigerator according to the present embodiment.

Fig. 6 is a schematic structural diagram of a back portion of the cover plate in the refrigerator according to the embodiment.

Fig. 7 is a schematic structural view of a first connecting member of the refrigerator according to the present embodiment.

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

Fig. 9 is a structural view illustrating another perspective view of the first connector in the refrigerator according to the present embodiment.

Fig. 10 is a schematic structural view illustrating that the first housing is mounted on the temperature varying chamber in the refrigerator according to the present embodiment.

Fig. 11 is a schematic structural view of a third housing in the refrigerator according to the embodiment.

Description of reference numerals:

1. a box body; 11. a freezing chamber; 111. an air return inlet; 112. an air inlet of the freezing chamber; 113. an air supply outlet of the temperature-variable chamber; 114. a cover plate; 115. the air outlet of the refrigerating chamber; 116. a first air guiding rib; 117. a second air guiding rib; 12. a refrigerating chamber; 121. an air outlet of the refrigerating chamber; 122. an air inlet of the refrigerating chamber; 123. a first damper; 13. a temperature-variable chamber; 131. an air inlet of the temperature changing chamber; 132. an air outlet of the temperature-variable chamber; 133. a second damper; 2. a refrigeration fan; 3. a first connecting member; 31. a first air duct; 311. a first stage; 312. a second stage; 32. a second air duct; 33. a third air duct; 34. a first housing; 341. a guide post; 342. a card slot; 35. a second housing; 4. a second connecting member; 41. a fourth air duct; 42. a third housing; 421. a lap joint section; 422. a clamping part; 43. a fourth housing; 5. an evaporator.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the subject matter of the present application can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known methods, devices, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the application.

The present application will be described in further detail with reference to the following drawings and specific examples. It should be noted that the technical features mentioned in the embodiments of the present application described below may be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.

At present multi-temperature-zone refrigerator accessible sets up single refrigerating system in the freezer to carry cold wind refrigeration to walk-in and temperature-changing room through a plurality of blast pipe ways, and a plurality of return air pipeline to the freezer return air, in order to realize the circulated air supply, thereby reduce cost and refrigerator energy consumption, like this, the pipeline is more, and the installation is inconvenient, and the cost is still relatively higher. The present application provides a refrigerator to solve the above problems.

For convenience of description and understanding, a direction of the refrigerator facing a user is a front side direction, and a direction facing away from the user is a rear side direction.

Fig. 1 is a schematic view of a front side structure of a refrigerator according to the embodiment. Fig. 2 is a schematic diagram of a rear side structure of the refrigerator according to the present embodiment. Fig. 3 is a partial structural schematic view of the rear side of the refrigerator according to the present embodiment.

Referring to fig. 1 to 3, a refrigerator is an appliance for storing articles such as various meats, vegetables, fruits, etc. at a low temperature, and different articles require different storage temperatures. The multi-temperature-zone refrigerator is provided with a plurality of temperature zones, and the temperatures of different temperature zones are different so as to correspondingly store different types of articles. In this embodiment, a three-temperature-zone refrigerator is taken as an example for explanation. The refrigerator comprises a refrigerator body 1, a refrigerating system, a first connecting piece 3 and a second connecting piece 4.

The refrigerator body 1 is a housing structure of a refrigerator and is used for accommodating other components. The casing 1 is generally shaped as a rectangular hollow cylinder, and a freezing chamber 11, a refrigerating chamber 12 and a temperature-changing chamber 13, which are open at the front side, are formed in the casing 1. The temperature in the freezing chamber 11 is below zero, the temperature is lower, the freezing chamber is mainly used for storing meat which needs to be stored for a long time, the temperature in the refrigerating chamber 12 is relatively higher and ranges from 2 ℃ to 8 ℃, the freezing chamber is mainly used for storing daily fruits and vegetables, and the temperature in the temperature-changing chamber 13 ranges from-3 ℃ to 2 ℃, so that food can be well stored, the food can be easily cut, and the wider use requirements can be met.

The freezing chamber 11, the refrigerating chamber 12 and the temperature-varying chamber 13 can be respectively formed by a freezing chamber 11 container, a refrigerating chamber 12 container and a temperature-varying chamber 13 container which are arranged in the refrigerator body 1, wherein the refrigerating chamber 12 and the temperature-varying chamber 13 are vertically spaced, the refrigerating chamber 12 and the temperature-varying chamber 13 are positioned on the same side of the freezing chamber 11, the front sides of the refrigerating chamber 12 and the temperature-varying chamber 13 are connected through a middle beam, the freezing chamber 11, the refrigerating chamber 12 and the temperature-varying chamber 13 are connected through a vertical beam, and the front side of the refrigerator body 1 is hinged with three door bodies to correspondingly seal the freezing chamber 11, the refrigerating chamber 12 and the temperature-varying chamber 13 so as to form a side-by-side three-temperature-zone refrigerator. Of course, in some embodiments, the refrigerating chamber 12 and the temperature-changing chamber 13 may also be switched in position up and down, and the positions may be adjusted according to the use requirement, and the number of the temperature-changing chambers 13 is not limited to one, and may be multiple.

Fig. 4 is a side view of a freezing chamber of a refrigerator according to the present embodiment. Fig. 5 is a side view of the variable temperature chamber of the refrigerator according to the present embodiment. Fig. 6 is a schematic structural diagram of a back portion of the cover plate in the refrigerator according to the embodiment.

With reference to fig. 4 to 6, a refrigerating chamber air inlet 122 and a refrigerating chamber air outlet 121 are formed in the inner wall of the refrigerating chamber 12, a temperature-varying chamber air inlet 131 and a temperature-varying chamber air outlet 132 are formed in the inner wall of the temperature-varying chamber 13, an air return opening 111 is formed in the inner wall of the freezing chamber 11, and the freezing chamber 11 is communicated with the refrigerating chamber 12.

An air cavity is formed in the freezing chamber 11 and is located on the rear side of the freezing chamber 11, and a freezing chamber air inlet 112, a refrigerating chamber air outlet 115 and a temperature-variable chamber air outlet 113 are formed in the air cavity. Refrigerating system includes evaporimeter 5, condenser, compressor and refrigeration fan 2, compressor and condenser, and wherein evaporimeter 5 and refrigeration fan 2 set up in the wind cavity, and compressor and condenser set up in 1 bottom of box, and the theory of operation of compressor and condenser is prior art, no longer gives unnecessary details here. The evaporator 5 is disposed in the air chamber to cool air flowing therethrough into cool air, and the refrigerating fan 2 is disposed at an upper side of the evaporator 5 to blow cool air to the freezing chamber air inlet 112, the refrigerating chamber air outlet 115, and the variable temperature chamber air outlet 113.

The cover plate 114 is disposed in the freezing chamber 11 and extends vertically, the cover plate 114 and the rear wall of the freezing chamber 11 enclose to form the air cavity, the cover plate 114 is used for protecting the evaporator 5 and the refrigerating fan 2 in the air cavity and preventing the evaporator and the refrigerating fan 2 from directly contacting with the articles stored in the freezing chamber 11, and the portion of the cover plate 114 corresponding to the refrigerating fan 2 is not shown in the drawing. It can be understood that the freezer air inlet 112 is disposed on the upper portion of the cover plate 114, the cool air flows into the freezer compartment 11 from the upper portion and circulates downward, and a gap is formed between the bottom of the cover plate 114 and the bottom wall of the freezer compartment 11, so that the cool air can flow back into the air chamber from the bottom. Meanwhile, the variable temperature chamber air supply outlet 113 is arranged on the side wall of the freezing chamber 11 corresponding to the air chamber facing the variable temperature chamber 13, and the refrigerating chamber air supply outlet 115 is arranged on the upper portion of the rear wall of the freezing chamber 11 corresponding to the air chamber.

A first air guiding rib 116 is further disposed on the inner side of the cover plate 114 above the refrigerating fan 2, and the first air guiding rib 116 separates the freezing chamber air inlet 112 and the refrigerating chamber air outlet 115 and is used for guiding cold air blown by the refrigerating fan 2 to the freezing chamber air inlet 112 and the refrigerating chamber air outlet 115, respectively. It can be understood that the first air guiding rib 116 divides the air cavity above the refrigerating fan 2 into two independent cavities, the freezing chamber air inlet 112 and the refrigerating chamber air outlet 115 are respectively located in the two cavities, and the first air guiding rib 116 is located on the air outlet side of the refrigerating fan 2 to supply air to the freezing chamber 11 and the refrigerating chamber 12, so that the air supply efficiency is improved. In this embodiment, the freezing chamber air inlet 112 extends to the upper portion of the cover plate 114 along the left-right direction, in order to increase the air inlet amount of the freezing chamber 11, a plurality of the freezing chamber air inlets 112 may be opened up and down, and a grill is disposed in the middle of the freezing chamber air inlet 112.

Meanwhile, a second air guiding rib 117 is further arranged on the air outlet side of the refrigerating fan 2, the second air guiding rib 117 is used for guiding cold air blown by the refrigerating fan 2 to the variable temperature chamber air supply outlet 113, wherein the refrigerating fan 2 is arranged in the air cavity corresponding to the middle position of the freezing chamber 11 and close to the variable temperature chamber air supply outlet 113, therefore, the refrigerating fan 2 is close to the evaporator 5, the air supply efficiency is high, the distance between the refrigerating chamber 12 and the variable temperature chamber 13 is close, and the air supply efficiency is high.

Fig. 7 is a schematic structural view of a first connecting member of the refrigerator according to the embodiment. Fig. 8 is an exploded view of fig. 7. Fig. 9 is a structural view illustrating another perspective view of the first connector in the refrigerator according to the present embodiment. Fig. 10 is a schematic structural view illustrating that the first housing is mounted on the temperature varying chamber in the refrigerator according to the present embodiment.

With continued reference to fig. 7 to 10, the first connecting member 3 is disposed at the back of the freezing chamber 11 and the temperature-varying chamber 13, and a first air duct 31, a second air duct 32 and a third air duct 33 are disposed therein at intervals, two ends of the first air duct 31 are respectively communicated with the refrigerating chamber air outlet 121 and the air return opening 111, two ends of the second air duct 32 are respectively communicated with the temperature-varying chamber air supply opening 113 and the temperature-varying chamber air inlet 131, and two ends of the third air duct 33 are respectively communicated with the temperature-varying chamber air outlet 132 and the air return opening 111.

The second connector 4 is disposed at the back of the refrigerating chamber 12 and the freezing chamber 11, a fourth air duct 41 is formed in the second connector 4, and two ends of the fourth air duct 41 are respectively communicated with the refrigerating chamber air inlet 115 and the refrigerating chamber air inlet 122.

Thus, the air passage for the freezing chamber 11, the refrigerating chamber 12, and the warming chamber 13 may include the following three. First, the refrigerating fan 2 delivers cold air into the freezing chamber 11 through the freezing chamber air inlet 112, and circulates in the freezing chamber 11. Secondly, the cooling fan 2 sends cold air to the refrigerating chamber 12 through the refrigerating chamber air supply outlet 115, the fourth air duct 41 and the refrigerating chamber air inlet 122, and the cold air in the refrigerating chamber 12 returns to the freezing chamber 11 through the refrigerating chamber air outlet 121, the first air duct 31 and the air return opening 111 to achieve circulation. Thirdly, the cooling fan 2 sends cold air to the variable temperature chamber 13 through the variable temperature chamber air supply outlet 113, the second air duct 32 and the variable temperature chamber air inlet 131, and the cold air in the variable temperature chamber 13 returns to the freezing chamber 11 through the variable temperature chamber air outlet 132, the third air duct 33 and the air return opening 111 to achieve circulation.

Through setting up first connecting piece 3 in this application, set up first wind channel 31, second wind channel 32 and third wind channel 33 jointly on first connecting piece 3, make the connecting piece of temperature-changing room 13 air supply, walk-in 12 return air and temperature-changing room 13 return air sharing, save the pipeline setting, it is more convenient to install to effective reduce cost.

The first air duct 31 includes a first section 311 and a second section 312 connected thereto, the first section 311 is communicated with the air outlet 121 of the refrigerating chamber, the second section 312 is communicated with the air return opening 111, the second section 312 protrudes towards the front side direction relative to the first section 311, the second air duct 32 is spaced from the first section 311 in the front-back direction, the third air duct 33 is spaced from the second section 312 in the up-down direction, and the second air duct 32 is spaced from the third air duct 33 in the up-down direction, so that the first air duct 31, the second air duct 32 and the third air duct 33 are not interfered with each other, and can be formed on the first connecting member 3 together, and pipeline arrangement is saved.

Meanwhile, the variable temperature chamber air inlet 131 and the variable temperature chamber air outlet 132 are arranged on the side wall of the variable temperature chamber 13 facing the freezing chamber 11, the return air inlet 111 is arranged on the side wall of the freezing chamber 11 facing the variable temperature chamber 13, the variable temperature chamber air inlet 131, the variable temperature chamber air outlet 132 and the return air inlet 111 are arranged oppositely, in this way, the two ends of the second air duct 32 are respectively aligned with the variable temperature chamber air inlet 113 and the variable temperature chamber air inlet 131, the two ends of the third air duct 33 are respectively aligned with the variable temperature chamber air outlet 132 and the return air inlet 111, the extending distance of the second air duct 32 and the third air duct 33 is short, turning is not needed, and the forming design is convenient. Therefore, the first connecting member 3 is partially located between the outer side wall of the freezing chamber 11 and the outer side wall of the temperature-changing chamber 13, so as to facilitate clamping and fixing the first connecting member 3, and also to enable the second air duct 32 and the third air duct 33 to extend along a straight line to be butted against the corresponding air ports.

It should be noted that the variable temperature chamber air supply outlet 113 and the return air inlet 111 are arranged at an interval from top to bottom, and the variable temperature chamber air inlet 131 and the variable temperature chamber air outlet 132 are arranged at an interval from top to bottom, so that the interference between the second air duct 32 and the third air duct 33 can be avoided under the condition that the thickness of the first connecting member 3 in the front-rear direction is reduced, and the second air duct 32 and the third air duct 33 can be designed by utilizing the upper-lower spatial position relationship. Of course, in some embodiments, the second air duct 32 and the third air duct 33 may also be arranged at intervals in the front-rear direction, and correspondingly, the variable temperature chamber air inlet 131 and the variable temperature chamber air outlet 132 are arranged at intervals in the front-rear direction.

Further, the refrigerating compartment air outlet 121 is formed in the rear wall of the refrigerating compartment 12, the first section 311 of the first duct 31 is located outside the rear wall of the refrigerating compartment 12, extends downward and protrudes forward to be connected with the second section 312, so as to be spaced from the second duct 32 and the third duct 33, the second section 312 is located between the outer side wall of the temperature changing compartment 13 and the outer side wall of the freezing compartment 11, is vertically arranged at one end of the third duct 33 and is communicated with the air return opening 111, so that space is saved, and layout is more compact. To make the path of the first duct 31 short, the refrigerating compartment air outlet 121 is located on a side of the bottom of the rear wall of the refrigerating compartment 12 near the freezing compartment 11.

Specifically, the first connecting member 3 includes a first housing 34 and a second housing 35, the first housing 34 covers the second housing 35, and a first air duct 31 and a third air duct 33 are formed between the first housing 34 and the second housing 35, so that the first air duct 31 and the third air duct 33 are conveniently formed, and the first housing 34 and the second housing 35 can be fixedly connected by a clamping or screwing manner. It can be understood that the first housing 34 and the second housing 35 both have grooves, the shapes of the grooves of the first housing 34 and the second housing 35 are matched to form the first air duct 31 and the third air duct 33 in a splicing manner, and the second air duct 32 is disposed on the first housing 34 or the second housing 35 as a whole. In the present embodiment, the first casing 34 is close to the front side of the box body 1 relative to the second casing 35, and the second air duct 32 is disposed on the first casing 34, and in some other embodiments, if the second casing 35 is close to the front side of the box body 1 relative to the first casing 34, the second air duct 32 is disposed on the second casing 35.

In order to improve the circulation effect, the air return opening 111 is arranged at a position close to the bottom of the side wall of the freezing chamber 11, the distance between the refrigerating chamber 12 air outlet 121 connected with the first air duct 31 and the air return opening 111 is far in the vertical direction, the first section 311 in the first air duct 31 mainly extends in the vertical direction, and the first connecting piece 3 integrally extends in the vertical direction.

Be equipped with guide post 341 along the fore-and-aft direction on first casing 34, the guide way has been seted up along the fore-and-aft direction to corresponding variable-temperature chamber 13 lateral wall and/or the 11 lateral walls in freezer, guide post 341 are pegged graft in the guide way, in order to set up to first connecting piece 3 part and provide direction and support between variable-temperature chamber 13 lateral wall and the 11 lateral walls in freezer, and simultaneously, first casing 34 border still can set up draw-in groove 342, variable-temperature chamber 13 lateral wall and/or the 11 lateral walls in freezer are equipped with the buckle, the buckle lock is in draw-in groove 342, with the fixed first connecting piece 3 of installation.

Fig. 11 is a schematic structural view of a third housing in the refrigerator according to the embodiment.

With continued reference to fig. 11, for example, the second connecting member 4 includes a third housing 42 and a fourth housing 43, the third housing 42 covers the fourth housing 43, and the fourth air duct 41 is formed between the third housing 42 and the fourth housing 43, so as to facilitate forming the fourth air duct 41. The third casing 42 and the fourth casing 43 can be fixedly connected by clamping or screwing. It can be understood that the third housing 42 and the fourth housing 43 have grooves, and the shapes of the grooves of the third housing and the fourth housing cooperate to form the fourth air duct 41. In this embodiment, the third housing 42 is close to the front side of the cabinet 1 relative to the fourth housing 43, the third housing 42 is formed with a lap joint portion 421 and a snap joint portion 422 protruding toward the front side, the lap joint portion 421 is lapped on the top wall of the freezing chamber 11 and the top wall of the refrigerating chamber 12, the snap joint portion 422 is snapped between the outer side wall of the refrigerating chamber 12 and the outer side wall of the freezing chamber 11 to fix the second connecting member 4, the refrigerating chamber air inlet 122 is opened on the upper portion of the rear wall of the refrigerating chamber 12, and the fourth air duct 41 is located on the outer side of the rear wall of the refrigerating chamber 12 and the outer side of the rear wall of the freezing chamber 11.

In some embodiments, the refrigerating compartment air inlet opening 122 and the refrigerating compartment air outlet opening 115 may be further disposed on a side wall of the freezing compartment 11 facing the refrigerating compartment 12 and a side wall of the freezing compartment 11 facing the refrigerating compartment 12, respectively, and the fourth duct 41 is located between an outer side wall of the refrigerating compartment 12 and an outer side wall of the freezing compartment 11 directly aligned with the refrigerating compartment air inlet opening 122 and the refrigerating compartment air outlet opening 115.

Meanwhile, in order to more conveniently control the air volume supplied to the refrigerating chamber 12 and the temperature-changing chamber 13, a first air door 123 is further arranged at the refrigerating chamber air inlet 122, the first air door 123 is used for controlling the opening and closing of the refrigerating chamber air inlet 122, a second air door 133 is arranged at the temperature-changing chamber air inlet 131, and the second air door 133 is used for controlling the opening and closing of the temperature-changing chamber air inlet 131. Of course, in some embodiments, the first damper 123 may also be disposed at the refrigerating compartment air outlet 115 or in the fourth air duct 41, and the second damper 133 may also be disposed at the variable temperature compartment air outlet 113 or in the second air duct 32.

It can be understood that the first damper 123 may include a first driving member and a first blocking plate, the first driving member is connected to the first blocking plate, the first driving member can control the size of the first blocking plate covering the refrigerating compartment air inlet opening 122, when the first blocking plate completely covers the refrigerating compartment air inlet opening 122, the refrigerating compartment air inlet opening 122 is closed, when the first blocking plate partially covers the refrigerating compartment air inlet opening 122, the refrigerating compartment air inlet opening 122 is partially opened, so that when the first blocking plate completely uncovers the refrigerating compartment air inlet opening 122, the refrigerating compartment air inlet opening 122 is completely opened, and the air intake amount is the largest. The first baffle can be disposed inside the refrigerating compartment air inlet 122, and the first driving member can drive the first baffle to linearly move along the radial direction of the refrigerating compartment air inlet 122, and can also drive the first baffle to rotate to cover the refrigerating compartment air inlet 122, so as to open or close the first damper 123. The first driving member may be connected to a controller of the refrigerator to control the opening and closing of the first damper 123 according to a program setting. The principle and structure of the second damper 133 may be the same as those of the first damper 123, and are not described herein again.

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

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

In the description herein, references to the description of the terms "some embodiments," "exemplary," etc. mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or exemplary is included in at least one embodiment or exemplary of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

Although embodiments of the present application have been shown and described, it is understood that the above embodiments are illustrative and should not be construed as limiting the present application and that various changes, modifications, substitutions and alterations can be made therein by those skilled in the art within the scope of the present application, and therefore all changes and modifications that come within the meaning of the claims and the description of the invention are to be embraced therein.

Claims (10)

1. A refrigerator, characterized by comprising:

the refrigerator comprises a box body, a freezing chamber, a refrigerating chamber and a temperature-changing chamber, wherein the front side of the box body is provided with an opening, the refrigerating chamber is provided with an air outlet on the inner wall, the temperature-changing chamber is provided with an air inlet and an air outlet on the inner wall, and the freezing chamber is provided with an air return opening on the inner wall; the freezing chamber is communicated with the refrigerating chamber to supply cold air to the refrigerating chamber; an air cavity is arranged in the freezing chamber, and a freezing chamber air inlet and a variable temperature chamber air outlet are formed in the air cavity;

the refrigerating fan is arranged in the air cavity and used for blowing cold air to the air inlet of the freezing chamber and the air outlet of the variable temperature chamber;

the first connecting piece is arranged at the back of the freezing chamber and the back of the temperature-changing chamber, a first air channel, a second air channel and a third air channel which are communicated are arranged in the first connecting piece at intervals, and two ends of the first air channel are respectively communicated with the air outlet of the refrigerating chamber and the air return opening; two ends of the second air duct are respectively communicated with the air supply outlet of the temperature-changing chamber and the air inlet of the temperature-changing chamber; and two ends of the third air duct are respectively communicated with the air outlet of the temperature-variable chamber and the air return opening.

2. The refrigerator according to claim 1,

the refrigerating chamber and the temperature-changing chamber are vertically spaced, and are positioned on the same side of the freezing chamber;

the first air duct comprises a first section and a second section connected with the first section, the first section is communicated with the air outlet of the refrigerating chamber, the second section is communicated with the air return opening, the second section protrudes towards the front side relative to the first section, the second air duct is spaced from the first section in the front-back direction, the third air duct is spaced from the second section in the up-down direction, and the second air duct is spaced from the third air duct in the up-down direction.

3. The refrigerator as claimed in claim 2, wherein a cover plate extending vertically is provided in the freezing chamber, the cover plate and the rear wall of the freezing chamber enclose to form the air chamber, the air inlet of the freezing chamber is provided at an upper portion of the cover plate, and the air outlet of the temperature-changing chamber is provided at a side wall of the freezing chamber facing the temperature-changing chamber corresponding to the air chamber.

4. The refrigerator as claimed in claim 3, wherein the first connecting part is located between the outer sidewall of the freezing chamber and the outer sidewall of the temperature-varying chamber, the air inlet of the temperature-varying chamber and the air outlet of the temperature-varying chamber are arranged on the sidewall of one side of the temperature-varying chamber facing the freezing chamber, the air return opening is arranged on the sidewall of one side of the freezing chamber facing the temperature-varying chamber, two ends of the second air duct are respectively aligned with the air inlet of the temperature-varying chamber and the air inlet of the temperature-varying chamber, two ends of the third air duct are respectively aligned with the air outlet of the temperature-varying chamber and the air return opening, the air inlet of the temperature-varying chamber and the air outlet of the temperature-varying chamber are arranged at intervals up and down.

5. The refrigerator as claimed in claim 2, wherein the first connecting member includes a first housing and a second housing, the first housing covers the second housing, the first duct and the third duct are formed therebetween, and the second duct is disposed on the first housing or the second housing.

6. The refrigerator as claimed in claim 3, wherein a refrigerating chamber air supply outlet is formed at an upper portion of a rear wall of the freezing chamber corresponding to the air chamber, and a refrigerating chamber air inlet is formed at an upper portion of a rear wall of the refrigerating chamber;

the refrigerator also comprises a second connecting piece, the second connecting piece is arranged on the backs of the refrigerating chamber and the freezing chamber, a fourth air duct is formed in the second connecting piece, and two ends of the fourth air duct are respectively communicated with the refrigerating chamber air supply outlet and the refrigerating chamber air inlet.

7. The refrigerator according to claim 6,

the inner side of the cover plate is positioned above the refrigerating fan, and a first air guide rib is further arranged at the upper part of the cover plate and separates the air inlet of the freezing chamber from the air outlet of the refrigerating chamber and is used for guiding cold air blown by the refrigerating fan to the air inlet of the freezing chamber and the air outlet of the refrigerating chamber respectively.

8. The refrigerator according to claim 6,

the refrigerating fan is arranged in the air cavity corresponding to the middle of the freezing chamber and close to the air supply outlet of the temperature-changing chamber, a second air guide rib is further arranged on the air outlet side of the refrigerating fan, and the second air guide rib is used for guiding cold air blown by the refrigerating fan to the air supply outlet of the temperature-changing chamber.

9. The refrigerator according to claim 6,

the second connecting piece comprises a third shell and a fourth shell, the third shell covers the fourth shell, and a fourth air duct is formed between the third shell and the fourth shell.

10. The refrigerator as claimed in claim 6, wherein a first damper is further provided at the air inlet of the refrigerating chamber for controlling the opening and closing of the air inlet of the refrigerating chamber;

and a second air door is further arranged at the air inlet of the temperature-changing chamber and used for controlling the opening and closing of the air inlet of the temperature-changing chamber.

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