Refrigerator

Abstract

The present application provides a refrigerator, which comprises a cabinet and an air duct forming member, the cabinet comprises a forwardly open inner container, the air duct forming member is arranged in front of the rear wall of the inner container to jointly define an air supply duct and a storage compartment in front of the air supply duct with the inner container, and the air duct forming member is formed with a plurality of air supply openings for communicating the air supply duct and the storage compartment, the air duct forming member is formed with a water collecting portion at the rear side of the air supply opening, the water collecting portion is used for collecting condensate water from the air supply duct and discharging the condensate water into the storage compartment from the air supply opening. The refrigerator of the present application can collect the condensate water of the air supply duct and discharge the condensate water into the storage compartment to evaporate, so as to avoid causing adverse reactions and improve the competitiveness of the cold product.

Description

Technical Field

[0001] This invention relates to the field of refrigeration and freezing, and in particular to a refrigerator. Background Technology

[0002] In refrigerators, due to the high temperature and humidity in the storage compartment and the large temperature difference, water droplets easily condense in the air supply duct. These water droplets may also flow back onto components such as the dampers and fans in the air supply duct, causing icing and leading to malfunctions and poor operation of the dampers and fans. Therefore, improvements are urgently needed. Summary of the Invention

[0003] One object of the present invention is to overcome at least one deficiency in the prior art and to provide a refrigerator.

[0004] A further objective of this invention is to collect the condensate from the air supply duct and then discharge it into the storage room for evaporation.

[0005] Another further objective of the present invention is to maintain the smooth drainage of condensate from the storage room.

[0006] Specifically, the present invention provides a refrigerator, comprising: a cabinet including a front-opening inner liner; an air duct forming member disposed in front of the rear wall of the inner liner to define an air supply duct and a storage compartment located in front of the air supply duct together with the inner liner, and the air duct forming member having a plurality of air outlets for connecting the air supply duct and the storage compartment; and the air duct forming member having a water collection portion formed on the rear side of the air outlets, the water collection portion for collecting condensate from the air supply duct and discharging it into the storage compartment from the air outlets.

[0007] Optionally, the air duct forming component includes: an air duct front cover, disposed in front of the rear wall of the inner liner, the front wall of the air duct front cover having an opening; and an air supply face frame, disposed in the opening, and having a plurality of air supply ports disposed along the height direction on the air supply face frame.

[0008] Optionally, the water collection section includes a water-blocking rib, the lower end of which is formed on the rear side of the front wall of the air duct front cover and located below the lowest air outlet. The water-blocking rib extends upward from its lower end, and the upper end of the water-blocking rib is higher than the lower edge of the lowest air outlet, so as to form a water collection groove with the air supply frame.

[0009] Optionally, the water collection section also includes an abutting edge, the rear end of which is formed on the surface of the water baffle facing the front cover of the air duct and extends forward, with its front end abutting against the rear surface of the air supply frame, and the front end of the abutting edge not higher than the lower edge of the lowest air supply port, so as to serve as the bottom wall of the water collection tank.

[0010] Optionally, the abutting edge is also configured such that when its front end abuts against the rear surface of the air supply frame, its upper surface is flush with the lower edge of the lowest air supply outlet.

[0011] Optionally, a lower mounting groove is formed between the lower surface of the abutment edge and the lower surface of the opening; a lower insertion part is formed on the lower periphery of the air supply frame, and the lower insertion part cooperates with the lower mounting groove to install the air supply frame on the front cover of the air duct.

[0012] Optionally, the front cover of the air duct has side mounting grooves on both sides of the opening; the two periphery of the air supply face frame are respectively formed with side insertion parts, which cooperate with the side mounting grooves to install the air supply face frame onto the front cover of the air duct.

[0013] Optionally, the air supply frame includes an upper body and a lower body located below the upper body, with the upper body protruding from the first transverse side of the lower body; the upper body has a first air supply port extending laterally, and the lower body has a second air supply port extending laterally, with the first air supply port protruding from the first transverse side of the second air supply port, and a water collection part located at the second air supply port; the rear wall of the upper body has a guide wall, one end of which is located at the lower edge of the first transverse side of the first air supply port and extends towards the second transverse side, so as to guide some of the condensate on the upper body to the water collection part.

[0014] Optionally, the air duct forming component further includes: an air duct rear cover, which covers the rear side of the air duct front cover to define an air delivery air duct with the air duct front cover.

[0015] Optionally, the refrigerator also includes: a front trim panel disposed on the front side of the air duct front cover, and the front trim panel is provided with air outlets corresponding to a plurality of air inlets.

[0016] In the refrigerator of the present invention, since the water collection section is formed on the rear side of the air outlet, that is, the entire water collection section is located within the air outlet duct, the condensate formed in the air outlet duct flows into the water collection section along the wall of the air outlet duct. Furthermore, since the water collection section is formed at the air outlet, the condensate collected in the water collection section can be discharged into the storage compartment through the air outlet for evaporation, thereby preventing condensate from flowing back onto components such as the air damper located in the air outlet duct, avoiding frost formation on these components, preventing adverse reactions, improving product quality, and enhancing product competitiveness.

[0017] Furthermore, in the refrigerator of the present invention, the rear end of the abutting edge is formed on the surface of the water baffle facing the front cover of the air duct and extends forward, so that its front end abuts against the rear surface of the air supply frame, and the upper surface of the abutting edge can also be set to be flush with the lower edge of the lowest air supply port, that is, the bottom wall of the water collection tank is flush with the lower edge of the air supply port, further ensuring that the condensate collected in the water collection tank can be smoothly and completely discharged from the air supply port into the storage room.

[0018] The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0019] The following sections will describe some specific embodiments of the invention in detail by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or portions. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0020] Figure 1 This is a schematic diagram of a refrigerator according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of an air duct forming component in a refrigerator according to an embodiment of the present invention;

[0022] Figure 3 This is an exploded view of a refrigerator air duct forming component according to an embodiment of the present invention;

[0023] Figure 4 This is a cross-sectional view of an air duct forming component in a refrigerator according to an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the air supply frame in a refrigerator according to an embodiment of the present invention;

[0025] Figure 6 This is a rear view of a refrigerator according to an embodiment of the present invention, with the outer casing omitted; Detailed Implementation

[0026] In the description of this embodiment, it should be understood that the terms "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," and "depth," etc., indicate the orientation or positional relationship based on the orientation under normal use conditions, and can be determined with reference to the orientation or positional relationship shown in the accompanying drawings. For example, "front" in indicating orientation refers to the side facing the user. This is only for the convenience of describing the present invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0027] In the description of this embodiment, it should be understood that the terms "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," and "depth," etc., indicate the orientation or positional relationship based on the orientation under normal use conditions, and can be determined with reference to the orientation or positional relationship shown in the accompanying drawings. For example, "front" in indicating orientation refers to the side facing the user. This is only for the convenience of describing the present invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0028] See Figure 1 , Figure 1 This is a schematic diagram of a refrigerator 1 according to an embodiment of the present invention. The present invention provides a refrigerator 1, which may specifically be a frost-free refrigerator 1. Generally, the refrigerator 1 may include a cabinet 10, a door 20, and a refrigeration system, etc.

[0029] The refrigerator body 10 may include an outer shell and multiple inner liners. The outer shell is located on the outermost side of the overall refrigerator 1 to protect the entire refrigerator 1. The multiple inner liners are enclosed by the outer shell, and the space between the multiple inner liners and the outer shell is filled with insulation material (forming a foam layer) to reduce heat loss from the inner liners. Each inner liner can define a forward-opening storage space, and the storage space can be configured as a refrigerator compartment, freezer compartment, variable temperature compartment, etc. The specific number and function of the storage space can be configured according to pre-set needs.

[0030] The number of doors 20 can also be the same as the number of inner linings, meaning that each storage compartment of the inner lining that opens forward can be opened and closed by its corresponding door 20. The door 20 is movably set at the front of the box 10. For example, the door 20 can be hinged to one side of the front of the box 10, and the storage space can be opened and closed by pivoting.

[0031] The refrigeration system may include a compressor, a condenser, a throttling device, and an evaporator 34. A compressor compartment is located at the lower rear of the housing 10. Both the compressor and the condenser can be housed within the compressor compartment. The compressor compresses the refrigerant into high-temperature, high-pressure refrigerant vapor and delivers it to the condenser. The high-temperature, high-pressure refrigerant dissipates heat fully in the condenser, forming a high-pressure, room-temperature refrigerant liquid. The throttling device reduces the pressure of the high-pressure, room-temperature refrigerant liquid at the cold gas outlet, obtaining a low-temperature, low-pressure refrigerant, which is then delivered to the evaporator 34. The evaporator 34 evaporates (boils) the low-temperature, low-pressure refrigerant liquid into vapor, absorbing heat from the substance being cooled, thus lowering the substance's temperature and providing cooling to the storage room.

[0032] See Figures 2 to 4 , Figure 2This is a schematic diagram of the air duct forming member 40 in a refrigerator 1 according to an embodiment of the present invention. Figure 3 This is an exploded view of the air duct forming member 40 in a refrigerator 1 according to an embodiment of the present invention. Figure 4 This is a cross-sectional view of the air duct forming member 40 in a refrigerator 1 according to an embodiment of the present invention.

[0033] Furthermore, the refrigerator 1 may also include an air duct forming member 40, which is disposed in front of the rear wall of the inner liner to divide the inner liner into an air supply duct 410 and a storage compartment located in front of the air supply duct 410. The air duct forming member 40 has a plurality of air outlets 92 for connecting the air supply duct 410 and the storage compartment. A water collection section 470 is formed on the rear side of the air outlets 92 in the air duct forming member 40. The water collection section 470 is used to collect condensate from the air supply duct 410 and discharge it into the storage compartment from the air outlets 92.

[0034] In this embodiment, the air duct forming member 40 can be disposed within any inner liner, such as a freezer inner liner 120, a refrigerator inner liner 110, or a variable temperature inner liner 130. The air duct forming member 40 is disposed within the inner liner, and it can either form an air supply duct 410 together with the inner liner (for example, the air duct forming member 40 is disposed in front of the rear wall to define the air supply duct 410 together with the rear wall, top wall 454, bottom wall, and side walls of the inner liner), or it can define the air supply duct 410 internally. This embodiment does not limit this.

[0035] For a frost-free refrigerator 1, water vapor is present in the cooling airflow. This water vapor condenses into condensate when it encounters the cold air (the rear surface of the air duct forming component 40). This condensate flows into the air supply duct 410 and cannot be discharged. Typically, the internal structure of the air supply duct 410 contains moving parts such as dampers and usually requires an electronic control unit. Therefore, if this condensate becomes too cold during defrosting, it may affect the operation of the fan and dampers.

[0036] In this embodiment, since the water collection part 470 is formed on the rear side of the air outlet 92, that is, the entire water collection part 470 is located inside the air supply duct 410, the condensate formed in the air supply duct 410 flows into the water collection part 470 along the wall of the air supply duct 410. Furthermore, since the water collection part 470 is formed at the air outlet 92, the condensate collected in the water collection part 470 can be discharged into the storage compartment through the air outlet 92 for evaporation. This prevents the condensate from flowing back onto components such as dampers located in the air supply duct 410, avoiding frost formation on dampers and other components, which could cause adverse reactions, improve product quality, and enhance product competitiveness.

[0037] It should be noted that in this embodiment, the number of water collection sections 470 can be one or more. When there is only one water collection section 470, it is preferably located at the lowest air outlet 92, which facilitates the collection of more condensate and the discharge of the collected condensate from the air outlet 92 into the storage room.

[0038] See Figure 3 and Figure 4 In some embodiments, the air duct forming member 40 may further include an air duct front cover 450 and an air supply frame 90. The air duct front cover 450 is disposed in front of the rear wall of the inner liner, and the front wall 452 of the air duct front cover 450 has an opening 458. The air supply frame 90 is disposed in the opening 458, and the air supply frame 90 has a plurality of air supply ports 92 arranged along the height direction.

[0039] In some specific embodiments, the duct front cover 450 may be made of foam to achieve better thermal insulation performance and lighter weight. The duct front cover 450 opens rearward and downward and includes a front wall 452, a top wall 454 located at the top of the front wall 452, and side walls 456 located on both sides of the front wall 452. The top wall 454 and the side walls 456 of the duct front cover 450 can respectively mate with the inner wall of the inner liner to fix the duct forming member 40. The opening 458 may be provided on the front wall 452 of the duct front cover 450, and when the air supply frame 90 mates with the opening 458, the front surface of the air supply frame 90 is flush with the front surface of the front wall 452 of the duct front cover 450 to ensure the integrity and aesthetics of the duct front cover 450.

[0040] The air supply frame 90 has multiple air outlets 92 arranged along the height direction. Each air outlet 92 can be a horizontally extending strip to make full use of the horizontal width of the air supply frame 90 and to keep the temperature field of the storage compartment uniform in the horizontal direction.

[0041] See Figure 3 and Figure 4 Furthermore, the water collection section 470 includes a water-blocking rib 472. The lower end of the water-blocking rib 472 is formed on the rear side of the front wall 452 of the air duct front cover 450 and is located below the lowermost air outlet 92. The water-blocking rib 472 extends upward from its lower end to form a water collection groove with the air outlet frame 90.

[0042] Specifically, the water-blocking rib 472 can be formed at the lower edge of the opening 458 of the duct front cover 450 (since the air outlet 92 is located on the air outlet frame 90, and the air outlet frame 90 is installed at the opening 458, the lower edge of the opening 458 is below the lowermost air outlet 92), and extends upward. The top of the water-blocking rib 472 is higher than the lower edge of the lowermost air outlet 92, so that the condensate collected in the water collection tank can be discharged from the lowermost air outlet 92. In addition, the lateral width of the water-blocking rib 472 can also be adapted to the width of the lowermost air outlet 92, so that the lateral width of the water collection tank is larger, making it easier to collect condensate, and facilitating the sealing of both ends of the water collection tank by the inner side wall 456 of the duct front cover 450.

[0043] In this embodiment, since multiple air outlets 92 extend along the height direction and the water baffle 472 is set at the lowest air outlet 92, most of the condensate from the inside of the front wall 452 of the air duct front cover 450 can fall into the water collection tank, thus improving the collection efficiency.

[0044] In some embodiments, the water collection section 470 further includes an abutment edge 476, the rear end of which is formed on the surface of the water baffle 472 facing the air duct front cover 450 and extends forward, with its front end abutting the rear surface of the air supply frame 90, and the front end of the abutment edge 476 not higher than the lower edge of the lowermost air outlet 92, so as to serve as the bottom wall of the water collection tank.

[0045] In this embodiment, the lower end of the water-blocking rib 472 is located on the front cover 450 of the air duct and below the lower edge of the lowest air outlet 92. The upper end of the water-blocking rib 472 extends to a height not higher than the lower edge of the lowest air outlet 92. That is, the water-blocking rib 472 actually serves as a rear wall of the water collection tank, and the rear surface of the air supply frame 90 serves as a front wall of the water collection tank.

[0046] The abutment edge 476 forms the bottom wall of the water collection tank. Since the abutment edge 476 extends from back to front, and its front end is not higher than the lower edge of the lowest air outlet 92, that is, the bottom wall of the water collection tank is not higher than the lower edge of the lowest air outlet 92, to ensure that the condensate collected in the water collection tank can be smoothly discharged from the air outlet 92 (if the front end of the abutment edge 476 is higher than the lower edge of the lowest air outlet 92, it may block the lowest air outlet 92, making it inconvenient for the condensate to be discharged).

[0047] See Figure 4 In some specific embodiments, the upper surface of the abutment edge 476 can also be configured to be flush with the lower edge of the lowest air outlet 92. That is, the bottom wall of the water collection tank is flush with the lower edge of the air outlet 92, further ensuring that the condensate collected in the water collection tank can be smoothly and completely discharged from the air outlet 92 into the storage room.

[0048] See Figure 4 and Figure 5 , Figure 5 This is a schematic diagram of the air supply frame 90 in a refrigerator 1 according to an embodiment of the present invention. Further, a lower mounting groove 480 is formed between the lower surface of the abutment edge 476 and the lower surface of the opening 458. A lower insertion portion 482 is formed on the lower periphery of the air supply frame 90, and the lower insertion portion 482 cooperates with the lower mounting groove 480 to install the air supply frame 90 onto the air duct front cover 450.

[0049] Since the abutting edge 476 abuts against the rear surface of the air supply frame 90, and the air supply frame 90 is mounted on the opening 458, the overall height of the abutting edge 476 is higher than the lower edge of the opening 458. Therefore, a lower mounting groove 480 can be formed between the lower surface of the abutting edge 476 and the lower surface of the opening 458.

[0050] During the installation of the air supply frame 90, the air supply frame 90 can be pushed from front to back to the opening 458, and the lower insertion part 482 on it can be inserted from front to back into the lower mounting groove 480. After insertion, the front end of the abutment edge 476 abuts against the rear surface of the air supply frame 90, and the upper surface of the abutment edge 476 is flush with the lower edge of the lowermost air outlet 92.

[0051] See Figure 3 and Figure 5 Furthermore, the front cover 450 of the air duct has side mounting grooves 484 on both sides of the opening 458, and the two sides of the air supply frame 90 are respectively formed with side insertion parts 486. The side insertion parts 486 cooperate with the side mounting grooves 484 to install the air supply frame 90 on the front cover 450 of the air duct.

[0052] The lower insertion part 482 cooperates with the lower mounting groove 480 to restrict the vertical freedom of the air supply face frame 90, and the cooperation of the side mounting grooves 484 and 484 restricts the horizontal freedom of the air supply face frame 90. The combined effect of both ensures that the air supply face frame 90 is securely mounted on the duct front cover 450.

[0053] See Figure 5 In some embodiments, the air supply frame 90 includes an upper body 94 and a lower body 96 located below the upper body 94, with the upper body 94 protruding from a first transverse side of the lower body 96. The upper body 94 has a first air outlet 942 extending laterally, and the lower body 96 has a second air outlet 962 extending laterally. The first air outlet 942 protrudes from the first transverse side of the second air outlet 962, and a water collection portion 470 is located at the second air outlet 962. The rear wall of the upper body 94 has a guide wall 946, one end of which is located at the lower edge of the first transverse side of the air outlet 92 and extends towards a second transverse side to guide a portion of the condensate on the upper body 94 to the water collection portion 470.

[0054] Since the first air outlet 942 protrudes from the first transverse side of the second air outlet 962, and the water collection part 470 is located at the second air outlet 962, the condensate formed on the portion of the first air outlet 942 protruding from the second air outlet 962 cannot be directly collected by the water collection part 470. One end of the guide wall 946 is located at the lower edge of the first transverse side of the first air outlet 942 and extends towards the second transverse side. In this way, the guide wall 946 can guide the condensate formed on the portion of the first air outlet 942 protruding from the second air outlet 962 to a position above the water collection part 470, thereby improving collection efficiency.

[0055] See Figures 2 to 4 In some embodiments, the duct forming member 40 further includes a duct rear cover 460, which covers the rear side of the duct front cover 450 to define the air supply duct 410 together with the duct front cover 450. The duct rear cover 460 may also be made of PE film to obtain better sealing and economy.

[0056] See Figure 1 and Figure 6 In some specific embodiments, the refrigerator 1 may also be a side-T type refrigerator 1. Specifically, the refrigerator 1 may include a refrigerator inner liner 110, a freezer inner liner 120, and a variable temperature inner liner 130. The freezer inner liner 120 and the variable temperature inner liner 130 are both located on the first horizontal side, and the variable temperature inner liner 130 is disposed above the freezer inner liner 120, while the refrigerator inner liner 110 is disposed on the second horizontal side.

[0057] Furthermore, the air duct forming component 40 can be specifically installed inside the variable temperature inner liner 130, and the air supply duct 410 of the air duct forming component 40 can be divided into a first air duct 412 and a second air duct 414. The inlet of the first air duct 412 is connected to the cooling chamber located in the freezer compartment through a first connector, and the outlet of the first air duct 412 can be connected to the storage compartment inside the variable temperature inner liner 130. The inlet of the second air duct 414 is connected to the cooling chamber located in the freezer compartment through a first connector, and the outlet of the second air duct 414 can be connected to the refrigeration air duct of the refrigerator inner liner 110 through a second connector to supply air to the storage compartment of the refrigerator inner liner 110.

[0058] See Figure 2 and Figure 3 In some embodiments, the air duct forming member 40 further includes a front trim panel 70. The front trim panel 70 is disposed on the front side of the air duct front cover 450, and the front trim panel 70 is provided with air outlets 72 corresponding to a plurality of air inlets 92.

[0059] Therefore, those skilled in the art should recognize that although numerous exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Thus, the scope of the present invention should be understood and construed as covering all such other variations or modifications.

Claims

1. A refrigerator, comprising: A housing, the housing including a front-opening inner liner; An air duct forming member is disposed in front of the rear wall of the inner liner to define, together with the inner liner, an air supply duct and a storage compartment located in front of the air supply duct. The air duct forming member has multiple air outlets for connecting the air supply duct and the storage compartment. The air duct forming member has a water collection part extending along the air outlet on the rear side of the lowest air outlet. The water collection part is used to collect condensate from the air duct and discharge it from the air outlet into the storage room. The air duct forming element includes: A front cover for the air duct is located in front of the rear wall of the inner liner, and the front wall of the front cover for the air duct has an opening. An air supply frame is provided at the opening, and the air supply frame has a plurality of air supply ports arranged along the height direction; The water collection section includes a water-blocking rib. The lower end of the water-blocking rib is formed on the rear side of the front wall of the air duct front cover and is located below the lowest air outlet. The water-blocking rib extends upward from its lower end, and the upper end of the water-blocking rib is higher than the lower edge of the lowest air outlet, so as to form a water collection groove with the air outlet frame.

2. The refrigerator according to claim 1, wherein, The water collection section also includes an abutting edge, the rear end of which is formed on the surface of the water-blocking rib facing the front cover of the air duct and extends forward, with its front end abutting against the rear surface of the air supply frame. The front end of the abutting edge is not higher than the lower edge of the lowest air supply port, so as to serve as the bottom wall of the water collection tank.

3. The refrigerator according to claim 2, wherein, The abutting edge is also configured such that when its front end abuts against the rear surface of the air supply frame, its upper surface is flush with the lower edge of the lowest air supply port.

4. The refrigerator according to claim 2, wherein, A lower mounting groove is formed between the lower surface of the abutting edge and the lower surface of the opening; The lower periphery of the air supply frame forms a lower insertion part, which cooperates with the lower mounting groove to install the air supply frame onto the front cover of the air duct.

5. The refrigerator according to claim 2, wherein, The air duct front cover has side mounting grooves on both sides of the opening; The air supply frame has side insertion parts formed on both sides of its periphery. The side insertion parts cooperate with the side mounting groove to install the air supply frame onto the front cover of the air duct.

6. The refrigerator according to claim 1, wherein, The air supply frame includes an upper body and a lower body located below the upper body, and the upper body protrudes from the first lateral side of the lower body; The upper body has a first air outlet extending laterally, and the lower body has a second air outlet extending laterally. The first air outlet protrudes from the first lateral side of the second air outlet, and the water collection part is located at the second air outlet. The rear wall of the upper body has a guide wall, one end of which is located at the lower edge of the first air outlet on the first lateral side and extends towards the second lateral side to guide some of the condensate on the upper body to the water collection section.

7. The refrigerator according to claim 1, wherein the air duct forming member further comprises: A rear cover for the air duct, which is fastened to the rear side of the front cover for the air duct, thereby defining the air supply duct together with the front cover.

8. The refrigerator according to claim 1, further comprising: A front trim panel is provided on the front side of the air duct front cover, and the front trim panel is provided with air outlets that correspond one-to-one with the plurality of air inlets.

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