Energy-saving structure of refrigerator freezing air duct and refrigerator

Abstract

The present invention discloses a refrigerator freezing air duct energy-saving structure and a refrigerator. For the refrigerator freezing air duct energy-saving structure, a channel connecting a heat exchange area is opened on the freezing air duct, and the energy-saving structure includes a closing component for switching the opening and closing state of the channel, and the closing component includes a closing member for blocking the channel and a driving component for driving the closing member to open and close the channel, and the driving component and / or the closing member are located outside or inside the side wall of the freezing air duct. Through the above arrangement, the driving component and / or the closing member are arranged outside or inside the side wall of the freezing air duct, and the additional structure is minimized to minimize the occupation of the freezing air duct space after installation and during use, so as to ensure the normal air supply function of the freezing air duct, thereby ensuring the overall product performance of the refrigerator, and at the same time, it also provides another convenient and energy-saving structure for the freezing air duct, reduces heat loss, improves capacity utilization, and is conducive to realizing the functional subdivision of the refrigerator, with a wider range of applications.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigerators, and in particular to an energy-saving structure of a refrigerator freezing air duct and a refrigerator. Background Art

[0002] In order to meet the storage needs of different items and foods, refrigerators need to add more and more subdivided functional divisions between the refrigeration and freezing chambers, such as dry and wet areas, ice temperature areas, variable temperature areas, etc. In order to achieve the above requirements of refrigerators, it is necessary to add damper devices in the refrigerator freezing air duct to control each functional area and adjust the direction of the air duct or the inlet and outlet positions.

[0003] A refrigerator damper device is disclosed in a Chinese invention patent document with application publication number CN107024064A, which records that a sliding cover is installed at the damper, and a motor, a gear and a rack are provided to drive the sliding of the cover, thereby realizing the opening and closing of the damper.

[0004] However, in actual use, it is found that in order to achieve functional subdivision and energy saving in the refrigeration duct, simply setting a cover plate or other structure at the damper at the return air position at the bottom of the duct cannot completely achieve a better effect, because there is also a centrifugal fan on the refrigeration duct, and the connecting channel between the centrifugal fan and the refrigeration duct will connect the inside and outside of the duct, so that after the air flows through the steel pipe heater and rises, it will enter the freezer compartment from the position of the fan port at the rear cover of the refrigeration duct, causing a large amount of heat loss, which is not conducive to energy saving.

[0005] If the above technical solution is directly adopted, slide rails, covers, motors, gears, racks and other devices are installed in the refrigeration air duct to realize the opening and closing control of the channel. Although the energy-saving effect can be improved, the refrigeration air duct corresponding to the fan port is relatively small, generally only 7 cm wide, and there is no space for installing complex structures. If installed, it will seriously affect the normal air supply of the refrigeration air duct and reduce product performance. Summary of the invention

[0006] In order to solve the defect that a complex structure is used in the centrifugal fan channel of the refrigeration air duct to achieve energy saving in the prior art, which seriously affects the air supply of the air duct and product performance, the present invention proposes an energy-saving structure of a refrigerator refrigeration air duct and a refrigerator.

[0007] The technical solution adopted in the present invention is an energy-saving structure for a refrigerator freezer duct, wherein a channel connecting to a heat exchange area is opened on the freezer duct, and the energy-saving structure includes a closing component for switching the opening and closing state of the channel, and the closing component includes a closing part for blocking the channel and a driving component for driving the closing part to open and close the channel, and the driving component and / or the closing part are located on the outside or inside the side wall of the freezer duct.

[0008] Preferably, the blocking member is located in the freezing air duct, and the driving assembly is located in the side wall of the freezing air duct.

[0009] Preferably, the driving assembly includes a mounting portion and a transmission mechanism disposed on the mounting portion and used for driving the blocking member to move closer to or away from the channel to switch between an opening and closing state.

[0010] Preferably, the transmission mechanism includes a lead screw, at least one connecting rod, and a guide member for limiting the movement direction of the blocking member, one end of the connecting rod is rotatably connected to a sliding block threadedly mounted on the lead screw, and the other end is rotatably connected to the blocking member.

[0011] Preferably, the lead screw is symmetrically provided with two sections of threads opened in opposite directions, and each section of the threads is threadedly connected to the sliding block, and each sliding block is provided with a connecting rod rotatably connected to the blocking block.

[0012] Preferably, the mounting portion is a long box-shaped structure with a groove on one side, both ends of the lead screw are rotatably connected in the mounting portion, and the sliding block slides along the groove of the mounting portion.

[0013] Preferably, the connecting rod is arc-shaped, and the arc surface is arranged toward the groove opened on the mounting portion. When the blocking member is attached to the mounting portion, the connecting rod is received in the groove.

[0014] Preferably, the shape of the blocking member matches the channel, and a circle of sealing member is provided on one side of the blocking member abutting against the channel.

[0015] Preferably, a mounting groove is formed on the end surface of the blocking member, and the sealing member is a sealing ring installed in the mounting groove.

[0016] Preferably, a notch is provided on the side of the blocking member, and the notch corresponds to the position of the connecting rod and matches the size thereof.

[0017] The present invention also provides a refrigerator, which comprises the above-mentioned freezing air duct energy-saving structure.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The driving assembly is arranged in the side wall of the freezing air duct, and the additional structure is minimized to minimize the space occupied by the freezing air duct after installation and during use, so as to ensure the normal air supply function of the freezing air duct, thereby ensuring the overall product performance of the refrigerator;

[0020] 2. It provides another convenient and energy-saving structure for the freezing air duct, reduces heat loss, improves capacity utilization, is conducive to the functional subdivision of the refrigerator, and has a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is described in detail below with reference to the embodiments and accompanying drawings, wherein:

[0022] Figure 1 is a top view of this embodiment;

[0023] Figure 2 is a side view of this embodiment;

[0024] Figure 3 yes Figure 2 A magnified image of point A;

[0025] Figure 4 is a schematic structural diagram of the enclosed assembly in this embodiment;

[0026] Figure 5 is a cross-sectional schematic diagram of the closed assembly in this embodiment;

[0027] Figure 6 is a top view of the closure assembly in this embodiment;

[0028] Figure 7 is a side view of the closure assembly in this embodiment.

[0029] 1. Air duct rear cover; 2. Centrifugal fan; 3. Air duct front cover; 4. Refrigeration air duct; 5. Evaporator; 6. Installation part; 7. Sealing part; 8. Lead screw; 9. Connecting rod; 10. Guide part; 11. Sliding block; 12. Sealing ring; 13. Notch; 14. Refrigeration chamber. DETAILED DESCRIPTION

[0030] A refrigerator freezing air duct energy-saving structure, wherein a channel connecting a heat exchange area is opened on the freezing air duct 4, and the energy-saving structure includes a closing component for switching the opening and closing state of the channel, and the closing component includes a closing member 7 for blocking the channel and a driving component for driving the closing member 7 to open and close the channel, and the driving component and / or the closing member 7 are located on the outside or inside the side wall of the freezing air duct 4.

[0031] Since the structure is used in the freezing air duct 4 of the refrigerator, an evaporator 5 is provided in the freezing air duct 4, and there can be multiple channels connecting the heat exchange area on the freezing air duct 4 of the refrigerator, such as the damper at the bottom return air position, or the air suction position of the centrifugal fan 2, and the present embodiment is applied to the channel at the air suction position of the centrifugal fan 2, so as to isolate the freezing air duct 4 from the external environment in time.

[0032] Specifically, the blocking member 7 is located in the freezing air duct 4, and the driving assembly is located in the side wall of the freezing air duct 4. In the present embodiment, the side wall of the freezing air duct 4 facing the centrifugal fan 2 is a freezing chamber 14, and the freezing chamber 14 is provided with a concave portion, and the driving assembly is installed in the concave area. Therefore, after the driving assembly is installed, the normal air supply of the freezing air duct 4 is minimally affected, and the effective opening and closing adjustment of the channel is ensured, thereby ensuring the realization of energy-saving effects.

[0033] The driving assembly includes a mounting portion 6, a transmission mechanism arranged on the mounting portion 6 for driving the blocking member 7 to move closer to or away from the channel to switch through the opening and closing states, the transmission mechanism includes a lead screw 8, at least one connecting rod 9, and a guide member 10 for limiting the movement direction of the blocking member 7, one end of the connecting rod 9 is rotatably connected to a sliding block 11 threadedly sleeved on the lead screw 8, and the other end is rotatably connected to the blocking member 7.

[0034] In this embodiment, the lead screw 8 is symmetrically provided with two sections of threads opened in opposite directions, and each section of the threads is threadedly connected to the sliding block, and each sliding block is provided with a connecting rod 9 rotatably connected to the blocking block, and the mounting portion 6 is a long box-shaped structure with a slot on one side, and both ends of the lead screw 8 are rotatably connected to the mounting portion 6, and the sliding block slides along the slot of the mounting portion 6. Since the two sections of threads on the lead screw 8 are symmetrically opened in opposite directions, and each section is threadedly connected to a sliding block, when the motor connected to one end of the lead screw 8 drives the lead screw to rotate, the two sliding blocks will move toward or in the opposite direction along the direction of the slot, thereby driving their respective connecting rods 9 to lift or retract the blocking member 7, thereby driving the blocking member 7.

[0035] In order to facilitate the storage of the connecting rod 9, the entire structure occupies a smaller volume and reduce the impact on the air supply of the refrigeration duct 4, the connecting rod 9 is arc-shaped, and the arc surface is arranged toward the groove opened on the mounting part 6. When the sealing member 7 is attached to the mounting part 6, the connecting rod 9 is stored in the groove.

[0036] The shape of the plugging member 7 matches the channel, and a circle of sealing members is provided on one side of the plugging member 7 that is pressed against the channel. In this embodiment, the plugging member 7 can be a circular sealing plate, and a mounting groove is provided on the end face of the plugging member 7. The sealing member is a sealing ring 12 installed in the mounting groove. At the same time, in order to further reduce the volume share when the structure shrinks, a notch 13 is provided on the side of the plugging member 7. The notch 13 corresponds to the position of the connecting rod 9 and matches the size, that is, a notch 13 is provided on both sides of the plugging member 7. When the connecting rod 9 is completely located in the groove of the mounting portion 6, the plugging member 7 can also be attached to the mounting portion 6, and the connecting rod 9 is embedded in the notch 13 without causing interference. In specific production practice, the width of the refrigeration duct 4 corresponding to the channel of the general centrifugal fan 2 is 7 cm, and when the plugging member 7 is fully shrunk, the width it occupies only needs to be about 3 cm, which basically does not bring adverse effects to the refrigeration duct 4.

[0037] It should be noted that in order to ensure that the blocking member 7 can smoothly approach and move away from the channel, the transmission mechanism includes a guide member 10 for limiting the movement direction of the blocking member 7. In the present embodiment, the guide member 10 is a guide rod or a guide cylinder fixed on the mounting portion 6, and the blocking member 7 is slidably mounted on the guide member 10, and the other end of the guide member 10 can be directly located in the channel.

[0038] In another embodiment, the guide member 10 may also be a guide sleeve with multiple sections of sliding sleeves, which can be extended and retracted forward and backward with the movement of the blocking member 7, thereby also achieving a guiding effect on the blocking member 7. At the same time, in another embodiment, multiple guide members 10 may be provided, and in this case, only one connecting rod 9 may be provided.

[0039] This embodiment also discloses a refrigerator, which includes the aforementioned energy-saving structure of the freezing air duct 4. The energy-saving structure is mainly used to block the channel at the centrifugal fan 2. Of course, when there is installation space and conditions, it can also be used to block other places that need to be blocked, such as air doors.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A refrigerator refrigeration air duct energy-saving structure, wherein a channel connecting a heat exchange area is opened on the refrigeration air duct, and the energy-saving structure includes a sealing component for switching the opening and closing state of the channel, characterized in that: The closing component includes a blocking piece for blocking the channel and a driving component for driving the blocking piece to open and close the channel, wherein the driving component and / or the blocking piece are located on the outside or inside the side wall of the refrigeration air duct; the driving component includes a mounting portion and a transmission mechanism arranged on the mounting portion for driving the blocking piece to approach or move away from the channel to switch through the opening and closing states; the transmission mechanism includes a lead screw, at least one connecting rod, and a guide member for limiting the movement direction of the blocking piece, one end of the connecting rod is rotatably connected to a sliding block threadedly mounted on the lead screw, and the other end is rotatably connected to the blocking piece; the lead screw is symmetrically provided with two sections of threads opened in opposite directions, and each section of the thread is threadedly connected to the sliding block, and each sliding block is provided with a connecting rod rotatably connected to the blocking block.

2. The refrigerator freezing air duct energy-saving structure according to claim 1, characterized in that: The blocking member is located in the freezing air duct, and the driving assembly is located in the side wall of the freezing air duct.

3. The refrigerator refrigeration air duct energy-saving structure according to claim 1, characterized in that: The mounting portion is a long box-shaped structure with a slot on one side, both ends of the lead screw are rotatably connected in the mounting portion, and the sliding block slides along the slot of the mounting portion.

4. The refrigerator freezing air duct energy-saving structure according to claim 3, characterized in that: The connecting rod is arc-shaped, and the arc surface is arranged toward the groove opened on the mounting portion. When the blocking member is attached to the mounting portion, the connecting rod is received in the groove.

5. The refrigerator freezing air duct energy-saving structure according to claim 1, characterized in that: The shape of the blocking member matches the channel, and a circle of sealing members is provided on one side of the blocking member that abuts against the channel.

6. The refrigerator freezing air duct energy-saving structure according to claim 5, characterized in that: The end surface of the blocking member is provided with an installation groove, and the sealing member is a sealing ring installed in the installation groove.

7. The refrigerator freezing air duct energy-saving structure according to claim 1, characterized in that: A notch is provided on the side of the blocking piece, and the notch corresponds to the position of the connecting rod and matches the size thereof.

8. A refrigerator, characterized in that: The invention comprises a refrigeration air duct energy-saving structure as described in any one of claims 1 to 7.

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