Air duct structure of refrigerator

Abstract

An air duct structure of a refrigerator comprises a refrigerating chamber and an air duct device arranged on the refrigerating chamber, an air door, a knob and an air duct are arranged on the air duct device, the air door is connected with the knob in a matched mode, the knob drives the air door to rotate when rotating, a baffle is arranged on the air door, an air outlet is formed in the air duct, and the air outlet is closed through the baffle when the air door is in an undetermined state. When rotating in the first direction, the air door drives the baffle to open the air outlet, so that the air duct communicates with the freezing chamber through the air outlet. The air door, the knob and the air duct are arranged on the air duct device, the knob rotates to drive the air door to rotate, and the air door rotates towards the first direction to drive the baffle to open the air outlet, so that the air duct is communicated with the freezing chamber through the air outlet; according to the rotary air door structure, under the condition that the air door rotates by a small angle, a gap is formed between the air door and the foam, cold air in the freezing chamber can be blown upwards to the refrigerating chamber to achieve the refrigerating effect, and the problem that the temperature in the refrigerating chamber is not accurately regulated and controlled through a traditional air door is solved.

Description

Technical Field

[0001] This utility model relates to the field of refrigerator technology, and in particular to a refrigerator air duct structure. Background Technology

[0002] like Figures 10-12 As shown, the air-cooled refrigerators currently on the market generally have an air duct component 111 in their refrigerator compartment. The air duct component 111 has an air damper 112 inside, which is used to adjust the air volume blown from the freezer compartment to the refrigerator compartment to ensure that the indoor temperature of the refrigerator compartment and the freezer compartment meets the usage requirements.

[0003] Traditional dampers 112 are generally sliding structures. There is a certain overlap 114 between the damper 112 and the air duct foam 113. This means that when the damper 112 moves and opens a small distance, there is still no gap between the damper 112 and the air duct foam 113. Cold air cannot be blown from the freezer to the refrigerator compartment, the temperature of the refrigerator compartment does not decrease, and the damper 112 does not accurately control the temperature inside the refrigerator compartment.

[0004] Secondly, the refrigerator compartment is usually equipped with a temperature sensor to monitor the temperature inside. When the internal temperature of the refrigerator compartment reaches the set temperature, the refrigerator will stop cooling. Therefore, in winter when the ambient temperature is low, the refrigerator compartment will quickly reach the set temperature and then turn off the compressor to stop cooling the refrigerator. At this time, the internal temperature of the freezer compartment has not yet reached the required temperature, resulting in poor freezing effect of food inside the freezer compartment, and ice cream will melt easily, causing user complaints.

[0005] Therefore, further improvements are necessary. Utility Model Content

[0006] The purpose of this invention is to provide a refrigerator air duct structure that is simple in structure, accurately adjusts the damper temperature, and can ensure that the freezer temperature meets the usage requirements even when the ambient temperature is low, so as to overcome the shortcomings of the prior art.

[0007] A refrigerator air duct structure designed for this purpose includes a refrigerator compartment and an air duct device installed on the refrigerator compartment. The air duct device is characterized by having an air damper, a knob, and an air duct. The air damper and the knob are connected in cooperation. When the knob is rotated, it drives the air damper to rotate. The air damper is provided with a baffle. The air duct is provided with an air outlet. When the air damper is in a standby state, the air outlet is closed by the baffle. When the air damper is rotated in a first direction, it drives the baffle to open the air outlet, so that the air duct can connect to the freezer compartment through the air outlet.

[0008] One end of the baffle is provided with a sealing part, and one side of the air outlet is provided with a sealing mating part. When the damper is in the waiting state, the sealing part abuts against the sealing mating part to seal the air outlet.

[0009] When the damper rotates to the first position, a gap is formed between the baffle and the sealing part, and the air duct connects to the freezer compartment through the gap and the air outlet in sequence.

[0010] The air duct device includes a cover plate and a foam component disposed within the cover plate. An air damper is rotatably mounted on the foam component, and the air duct is disposed on the foam component.

[0011] The inner side of the cover is equipped with a heating element for heating the refrigerator compartment, and the heating element is located between the cover and the foaming component.

[0012] The cover is equipped with a temperature sensor for detecting the temperature of the refrigerator compartment. An electronic control board is installed inside the refrigerator, and the temperature sensor and heating components are electrically connected to the electronic control board.

[0013] The damper is provided with a mounting shaft, and the knob is provided with a first mounting hole. The mounting shaft and the first mounting hole are inserted into each other to fix the knob to the damper.

[0014] The damper is provided with a rotating hole, and the foam part is provided with a rotating shaft. The damper is rotatably mounted on the foam part through the cooperation of the rotating hole and the rotating shaft.

[0015] The cover plate has a second mounting hole, and the knob is installed in the second mounting hole by rotation.

[0016] The foam component has an installation position, and the damper is installed in the installation position, which is located near the air outlet.

[0017] The refrigerator's air duct structure of this utility model features an air damper, a knob, and an air duct. Rotating the knob causes the air damper to rotate, and when the damper rotates in the first direction, it opens the air outlet, allowing the air duct to connect to the freezer compartment. This rotary damper structure creates a gap between the damper and the foam when the damper rotates at a small angle, allowing cold air from the freezer compartment to be blown upwards into the refrigerator compartment for cooling. This solves the problem of inaccurate temperature control in the refrigerator compartment using traditional dampers. Furthermore, a heating wire is added to the inside of the cover. When the ambient temperature is low, the heating wire activates, raising the temperature of the refrigerator compartment and extending the refrigerator's cooling time, ensuring the freezer compartment temperature meets the set requirements and satisfies the user's needs for storing food in the freezer. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the refrigerator compartment in one embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the overall structure of the air duct device in one embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the overall structure of the air duct device from another position in one embodiment of the present invention.

[0021] Figure 4 This is a partial structural schematic diagram of the air duct device in one embodiment of the present invention.

[0022] Figure 5 This is an exploded view of the damper and knob in one embodiment of the present invention.

[0023] Figure 6 This is a schematic diagram of the damper in a pending state in one embodiment of the present invention.

[0024] Figure 7 This is a schematic diagram of the structure of the damper after it rotates in the first direction in one embodiment of the present invention.

[0025] Figure 8 This is a schematic diagram of the structure of the damper when it is rotated to the first position in one embodiment of the present invention.

[0026] Figure 9 This is a schematic diagram of the assembly structure of the cover plate and the heating element in one embodiment of the present invention.

[0027] Figure 10 This is a schematic diagram of the structure of a traditional damper when it is closed.

[0028] Figure 11 This is a schematic diagram of the structure when a traditional damper is open.

[0029] Figure 12 This is a schematic diagram of the structure of a traditional damper when it is opened by moving a small distance. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0031] See Figures 1-9 The air duct structure of this refrigerator includes a refrigerator compartment 1 and an air duct device 2 installed on the refrigerator compartment 1. The air duct device 2 is equipped with an air damper 3, a knob 4, and an air duct 18. The air duct 18 connects to the refrigerator compartment 1. The air damper 3 and the knob 4 are connected in cooperation. When the knob 4 is rotated, it drives the air damper 3 to rotate. The air damper 3 is equipped with a baffle 5, and the air duct 18 is equipped with an air outlet 6. When the air damper 3 is in a standby state, the air outlet 6 is closed by the baffle 5 so that the refrigerator compartment 1 is not connected to the freezer compartment. When the air damper 3 rotates in the first direction A (i.e., rotates downward), it drives the baffle 5 to open the air outlet 6, so that the air duct 18 connects to the freezer compartment through the air outlet 6, thereby connecting the refrigerator compartment 1 and the freezer compartment. By using a rotary air damper structure instead of the traditional sliding air damper structure, the problem of inaccurate temperature control caused by the air damper not opening after moving a certain distance in the old structure is solved.

[0032] One end of the baffle 5 is provided with a sealing part 7, and one side of the air outlet 6 is provided with a sealing mating part 8. When the damper 3 is in the waiting state, the sealing part 7 abuts against the sealing mating part 8 to seal the air outlet 6.

[0033] When the damper 3 rotates downward to the first position B (at which point the rotation angle of the damper 3 is very small), a gap 9 is formed between the baffle 5 and the closed mating part 8. The air duct 18 passes through the gap 9 and the air outlet 6 in sequence to connect with the freezer compartment, thereby connecting the refrigerator compartment 1 and the freezer compartment.

[0034] The air duct device 2 includes a cover plate 10 and a foaming element 11 disposed in the cover plate 10. The air damper 3 is rotatably mounted on the foaming element 11, and the air duct 18 is disposed on the foaming element 11. The foaming element 11 is foam.

[0035] A heating element 12 for heating the refrigerator compartment 1 is provided on the inner side of the cover plate 10. The heating element 12 is located between the cover plate 10 and the foaming part 11. The heating element 12 is a heating wire. The addition of the heating wire inside the air duct solves the problem that when the ambient temperature is low in winter, the temperature of the refrigerator compartment 1 is low, which leads to the refrigerator running for a short time and the freezer compartment being too hot, causing the ice cream inside to melt.

[0036] A temperature sensor 13 for detecting the temperature of the refrigerator compartment 1 is provided on the cover plate 10. An electronic control board is provided inside the refrigerator. The temperature sensor 13 and the heating element 12 are electrically connected to the electronic control board. The temperature sensor 13 feeds back the detected temperature to the electronic control board. In the traditional structure, when the temperature sensor detects that the temperature of the refrigerator compartment 1 meets the set requirements, the compressor is turned off to stop the refrigerator from cooling. Therefore, in winter when the ambient temperature is low, the refrigerator compartment 1 will quickly reach the set temperature. At this time, the freezer compartment has not yet reached the required temperature, resulting in poor freezing effect of food inside the freezer compartment and ice cream melting easily. In this embodiment, the air duct device 2 adds a heating wire inside the cover plate 10. When the ambient temperature is low, the electronic control board controls the heating wire to start heating, thereby increasing the temperature of the refrigerator compartment 1 and extending the cooling time of the refrigerator, so that the temperature of the freezer compartment can meet the set requirements and meet the user's requirements for food storage in the freezer compartment.

[0037] The damper 3 is provided with a mounting shaft 14, and the knob 4 is provided with a first mounting hole 15. The mounting shaft 14 and the first mounting hole 15 are inserted into each other so that the knob 4 is fixedly connected to the damper 3. When the user needs to adjust the temperature inside the refrigerator compartment 1, the knob 4 is turned and the damper 3 is rotated along with the knob 4 to open the air outlet 6. The cold air from the freezer compartment can then be blown upwards to the refrigerator compartment 1 to achieve the cooling effect of the refrigerator compartment 1.

[0038] The damper 3 is provided with a rotating hole 19, and the foaming part 11 is provided with a rotating shaft (not shown in the figure). The damper 3 is rotatably mounted on the foaming part 11 through the cooperation of the rotating hole 19 and the rotating shaft.

[0039] The cover plate 10 is provided with a second mounting hole 16, and the knob 4 is rotated and installed in the second mounting hole 16.

[0040] The foam component 11 is provided with an installation position 17, and the damper 3 is installed on the installation position 17. The installation position 17 is located near the air outlet 6.

[0041] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A refrigerator air duct structure, comprising a refrigerator compartment (1) and an air duct device (2) disposed on the refrigerator compartment (1), characterized in that: The air duct device (2) is equipped with an air damper (3), a knob (4) and an air duct (18). The air damper (3) and the knob (4) are connected together. When the knob (4) is turned, it drives the air damper (3) to rotate. The air damper (3) is equipped with a baffle (5). The air duct (18) is equipped with an air outlet (6). When the air damper (3) is in a waiting state, it closes the air outlet (6) through the baffle (5). When the air damper (3) rotates in the first direction (A), it drives the baffle (5) to open the air outlet (6) so that the air duct (18) can be connected to the freezer through the air outlet (6).

2. The air duct structure of the refrigerator according to claim 1, characterized in that: A sealing part (7) is provided at one end of the baffle (5), and a sealing mating part (8) is provided on one side of the air outlet (6). When the damper (3) is in the waiting state, the sealing part (7) abuts against the sealing mating part (8) to seal the air outlet (6).

3. The air duct structure of the refrigerator according to claim 2, characterized in that: When the damper (3) rotates to the first position (B), a gap (9) is formed between the baffle (5) and the closed fitting part (8), and the air duct (18) passes through the gap (9) and the air outlet (6) to connect to the freezer compartment.

4. The air duct structure of the refrigerator according to claim 3, characterized in that: The air duct device (2) includes a cover plate (10) and a foaming element (11) disposed in the cover plate (10). The damper (3) is rotatably mounted on the foaming element (11), and the air duct (18) is disposed on the foaming element (11).

5. The air duct structure of the refrigerator according to claim 3, characterized in that: A heating element (12) for heating the refrigerator compartment (1) is provided on the inner side of the cover plate (10), and the heating element (12) is located between the cover plate (10) and the foaming element (11).

6. The air duct structure of the refrigerator according to claim 5, characterized in that: A temperature sensor (13) for detecting the temperature of the refrigerator compartment (1) is provided on the cover plate (10). An electronic control board is provided inside the refrigerator. The temperature sensor (13) and the heating element (12) are electrically connected to the electronic control board respectively.

7. The air duct structure of the refrigerator according to claim 1, characterized in that: The damper (3) is provided with an installation shaft (14), and the knob (4) is provided with a first installation hole (15). The installation shaft (14) and the first installation hole (15) are inserted into each other so that the knob (4) is fixedly connected to the damper (3).

8. The air duct structure of the refrigerator according to claim 4, characterized in that: The damper (3) is provided with a rotating hole (19), and the foaming part (11) is provided with a rotating shaft. The damper (3) is rotatably mounted on the foaming part (11) through the cooperation of the rotating hole (19) and the rotating shaft.

9. The air duct structure of the refrigerator according to claim 4, characterized in that: The cover plate (10) is provided with a second mounting hole (16), and the knob (4) is rotated and installed in the second mounting hole (16).

10. The air duct structure of the refrigerator according to claim 4, characterized in that: The foam component (11) is provided with an installation position (17), and the damper (3) is installed on the installation position (17). The installation position (17) is located near the air outlet (6).

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