Air door structure and refrigerator

Abstract

The utility model provides an air door structure and a refrigerator. The air door structure comprises a refrigerating chamber, and a first temperature sensor is arranged in the refrigerating chamber; the refrigerating chamber comprises an air inlet; the air door is used for opening or closing the air inlet; the air supply structure is used for introducing refrigerating airflow into the refrigerating chamber through the air inlet; the second temperature sensor is used for detecting the temperature of the air door; the detection module is in signal connection with the first temperature sensor and the second temperature sensor, the detection module judges whether the air door breaks down or not according to detection values of the first temperature sensor and the second temperature sensor, and the air door structure solves the technical problem that the air door is prone to frosting.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigerators, in particular to a damper structure and a refrigerator. Background Art

[0002] With the advancement of modern technology, variable-frequency electronically controlled refrigerators are becoming increasingly popular, and people's demand for precise temperature control and energy conservation awareness are increasing. This precise temperature control requires high accuracy in temperature acquisition by sensors and high control of the operating status of electrical components by the main control board. Traditional air-cooled refrigerators control the temperature of the cold and cold storage compartments by opening and closing dampers. To ensure proper functioning of the dampers, damper heaters are installed at the dampers.

[0003] However, existing damper heaters only operate for a fixed duration when the damper is closed, which only qualitatively reduces the likelihood of damper freezing. They cannot flexibly control the heating time based on the damper's current state. Consequently, insufficient heating time can cause frost, or excessive heating time can increase the refrigerator's power consumption.

[0004] Therefore, the prior art needs to be further developed. Utility Model Content

[0005] The purpose of the present invention is to overcome the above technical deficiencies and provide a damper structure and a refrigerator to solve the technical problem in the related art that the damper is prone to frost.

[0006] In order to achieve the above technical objectives, the utility model adopts the following technical solutions: a damper structure is provided, including: a cold storage chamber, a first temperature sensor is arranged in the cold storage chamber; the cold storage chamber includes an air inlet; a damper, the damper is used to open or close the air inlet; an air supply structure, the air supply structure introduces a refrigerated air flow into the cold storage chamber through the air inlet; a second temperature sensor, the second temperature sensor is used to detect the temperature at the damper; a detection module, the detection module is signal-connected to the first temperature sensor and the second temperature sensor, and the detection module determines whether the damper is faulty through the detection values ​​of the first temperature sensor and the second temperature sensor.

[0007] Furthermore, the inspection module includes: a comparison module, in which a preset temperature value is set, and the comparison module is used to compare the preset temperature value with the detection values ​​of the first temperature sensor and the second temperature sensor; an alarm module, which is signal-connected to the comparison module, and the alarm module issues an alarm based on the comparison result of the comparison module.

[0008] Furthermore, the damper structure also includes a damper heater, which is arranged on the damper and used to heat the damper. The damper heater is connected to the inspection module signal.

[0009] Furthermore, the damper structure includes: a timer, which is used to record the refrigeration time of the refrigeration chamber; an ambient temperature sensor, which is used to detect the temperature of the external environment of the damper structure; wherein the timer and the ambient temperature sensor are both connected to the inspection module signal; the refrigeration time is the time for the air supply structure to introduce cooling airflow into the refrigeration chamber.

[0010] Furthermore, there are multiple refrigeration chambers; there are multiple air dampers; and the multiple refrigeration chambers are provided in a one-to-one correspondence with the multiple air dampers.

[0011] Furthermore, the air supply structure includes: a heat exchange component for generating cold energy; and a fan component, which is arranged at the heat exchange component to blow the cold energy generated by the heat exchange component to the air inlet.

[0012] A refrigerator includes a damper structure, wherein the damper structure is the damper structure described above.

[0013] Furthermore, the refrigerator includes: a freezer compartment, the freezer compartment is connected to the air inlet of the refrigeration compartment of the damper structure; and an air supply structure is used to blow the refrigeration air flow in the freezer compartment to the air inlet.

[0014] Furthermore, the refrigeration chamber includes a refrigeration space and a variable temperature space, the refrigeration space is located above the freezer chamber; the variable temperature space is located on one side of the refrigeration space; the refrigeration space and the variable temperature space both have an air inlet connected to the refrigeration space; the damper includes a refrigeration damper for opening or closing the refrigeration space and a variable temperature damper for opening or closing the variable temperature space.

[0015] Furthermore, the freezing chamber is provided with a refrigeration component for refrigeration, and the air supply structure includes a fan component arranged at the refrigeration component.

[0016] Beneficial effects:

[0017] The damper structure of the utility model includes a cold storage room, in which a first temperature sensor is provided; the cold storage room includes an air inlet; a damper, which is used to open or close the air inlet; an air supply structure, which introduces a cooling air flow into the cold storage room through the air inlet; a second temperature sensor, which is used to detect the temperature at the damper; and a detection module, which is signal-connected to the first temperature sensor and the second temperature sensor, and the detection module determines whether the damper is faulty based on the detection values ​​of the first temperature sensor and the second temperature sensor. With the above arrangement, a second temperature sensor is added to the damper, and the damper heater is controlled to be turned on and off by a controller according to the working state of the damper and the ambient temperature feedback, and reasonable damper heater working control rules are formulated. The damper is judged to be faulty based on the opening and closing state of the damper combined with the temperature values ​​of the first temperature sensor and the second temperature sensor, thereby eliminating the fault and solving the technical problem that the damper is prone to frost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of the damper structure used in the embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the control structure of the damper structure used in the embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the control flow when the damper of the damper structure used in the embodiment of the present utility model is opened;

[0021] Figure 4 It is a schematic diagram of the control flow of the damper structure adopted in the embodiment of the present utility model when the damper is closed.

[0022] The above drawings include the following reference numerals:

[0023] 1. Refrigeration compartment; 11. First temperature sensor; 12. Variable temperature space; 13. Refrigeration space; 2. Damper; 21. Damper heater; 22. Variable temperature damper; 23. Refrigeration damper; 3. Air supply structure; 4. Second temperature sensor; 5. Inspection module; 6. Timer; 7. Fan component; 8. Ambient temperature sensor; 9. Freezer compartment. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0025] See also Figures 1 to 4According to an embodiment of the present invention, a damper structure is provided, comprising: a refrigeration chamber 1, wherein a first temperature sensor 11 is provided in the refrigeration chamber 1; the refrigeration chamber 1 includes an air inlet; a damper 2, wherein the damper 2 is used to open or close the air inlet; an air supply structure 3, wherein the air supply structure 3 introduces a refrigeration airflow into the refrigeration chamber 1 through the air inlet; a second temperature sensor 4, wherein the second temperature sensor 4 is used to detect the temperature at the damper 2; and a detection module 5, wherein the detection module 5 is signal-connected to both the first temperature sensor 11 and the second temperature sensor 4, and the detection module 5 determines whether the damper 2 is faulty based on the detection values ​​of the first temperature sensor 11 and the second temperature sensor 4. With the above configuration, the second temperature sensor 4 is added to the damper 2, and the damper heater is controlled to be turned on and off by a controller based on the operating state of the damper 2 and the ambient temperature feedback. A reasonable damper heater operation control rule is formulated, and the damper 2 is determined to be faulty based on the opening and closing state of the damper 2 and the temperature values ​​of the first temperature sensor 11 and the second temperature sensor 4, thereby eliminating the fault condition and solving the technical problem of the damper being easily frosted.

[0026] In the damper structure of this embodiment, the inspection module 5 includes: a comparison module, which is provided with a preset temperature value and is used to compare the preset temperature value with the detection values ​​of the first temperature sensor 11 and the second temperature sensor 4; and an alarm module, which is signal-connected to the comparison module and issues an alarm based on the comparison result of the comparison module. In this way, by comparing the temperature values ​​detected by the first temperature sensor 11 and the second temperature sensor 4, it is possible to determine whether the temperature changes normally under normal circumstances by comparing the temperature changes under normal circumstances when the damper 2 is open or closed, thereby determining whether the damper 2 is abnormal. If the damper 2 is abnormal, a timely reminder can be issued.

[0027] In the damper structure of this embodiment, see Figure 2 The damper structure further includes a damper heater 21, which is disposed on the damper 2 and is used to heat the damper 2. The damper heater 21 is signal-connected to the inspection module 5. Thus, when the damper 2 is determined to be frost-blocked, the damper heater 21 can be used to heat the damper to eliminate the fault. The damper heater 21 can also cooperate with the temperature sensor to determine the type of fault encountered by the damper 2, thereby ensuring that the fault of the damper 2 is eliminated.

[0028] See also Figure 2In the damper structure of this embodiment, the damper structure includes: a timer 6, which is used to record the refrigeration time of the refrigeration chamber 1; an ambient temperature sensor 8, which is used to detect the temperature of the external environment of the damper structure; wherein the timer 6 and the ambient temperature sensor 8 are both connected to the detection module 5 signal; the refrigeration time is the time when the air supply structure introduces cooling airflow into the refrigeration chamber 1.

[0029] Specifically, when the actual refrigeration time is greater than the time threshold, it indicates that the refrigeration process is affected. At this time, the damper 2 may be blocked by frost. Through the above settings, the above abnormal situation can be accurately discovered, thereby troubleshooting.

[0030] See also Figure 1 In this embodiment, the damper structure includes multiple refrigerating chambers 1 and multiple dampers 2, each corresponding to a corresponding damper 2. This improves the storage capacity of the damper structure by providing multiple refrigerating chambers 1. Similarly, providing multiple dampers 2 allows for different controls to be applied to different refrigerating chambers 1.

[0031] Specifically, in the refrigerator of this embodiment, the damper 2 is located between the freezing chamber and the refrigerating chamber 1 or between the freezing chamber and the temperature-changing chamber.

[0032] See also Figure 1 In the refrigerator of this embodiment, the air supply structure includes: a heat exchange component for generating cold energy; and a fan component 7, which is arranged at the heat exchange component to blow the cold energy generated by the heat exchange component to the air inlet.

[0033] Specifically, the fan component 7 is in the evaporator chamber. If the damper 2 fails, the fan component 7 will blow the cold air on the evaporator into the refrigeration chamber after operation, causing the temperature of the refrigeration chamber to drop, thereby judging that the damper 2 fails.

[0034] The refrigerator of this embodiment includes a damper structure, which is the damper structure described above.

[0035] By adopting the above-mentioned damper structure, the working state and time of the damper 2 and the damper heater 21 can be accurately controlled according to the temperature around the damper 2, thereby preventing the refrigerator damper 2 from frosting and achieving energy-saving effects.

[0036] The refrigerator of this embodiment includes a freezer compartment 9, which is connected to the air inlet of the refrigerator compartment 1 with a damper structure; and an air supply structure 3 for blowing the cooling air in the freezer compartment 9 to the air inlet. Because the temperature in the freezer compartment 9 is the lowest, introducing cooling air from the freezer compartment 9 improves the efficiency of cold air utilization and saves energy.

[0037] In the refrigerator of this embodiment, see Figure 1The refrigerator compartment 1 includes a refrigerated space 13 and a variable temperature space 12. The refrigerated space 13 is located above the freezer compartment 9; the variable temperature space 12 is located to one side of the refrigerated space 13. Both the refrigerated space 13 and the variable temperature space 12 have air inlets connected to the refrigerated space 13. The dampers 2 include a refrigerated damper 23 for opening or closing the refrigerated space 13 and a variable temperature damper 22 for opening or closing the variable temperature space 12. In this way, the different compartments are controlled separately according to the needs of the refrigerator, and the dampers 2 of the refrigerated space 13 and the variable temperature space 12 are controlled and detected separately, making the detection of the dampers 2 more accurate.

[0038] In the refrigerator of this embodiment, see Figure 1 The freezer compartment 9 has a refrigeration component for refrigeration, and the air supply structure 3 includes a fan component 7 arranged at the refrigeration component. In this way, the refrigeration component is placed in the freezer compartment 9, directly providing cooling capacity and cold air for air supply, avoiding the dissipation of cooling capacity and saving energy.

[0039] Example 1

[0040] When the refrigerator compartment 1 is cooled, the damper 2 is opened and the fan component 7 is running. The damper 2 is determined according to the temperature of the ambient temperature sensor 8 and the cooling time of the refrigerator compartment 1:

[0041]

[0042] When the cooling time of the refrigerator compartment 1 exceeds the temperature threshold value described in the above table, the damper 2 is judged to be faulty, the damper 2 is heated for 10 minutes, the damper 2 is reset once, and then the current temperature Tc1 of the first temperature sensor 11 is immediately collected. The fan component 7 runs for 5 minutes, and 5 minutes later the temperature Tc2 of the first temperature sensor 11 is collected again. If Tc1>Tc2+1°C, the damper 2 is judged to be normal. If Tc1≤Tc2+1°C, the damper 2 is judged to be frost-blocked, and the display panel displays the damper 2 fault code.

[0043] When the damper 2 is open, in order to prevent the damper 2 and the damper heater 21 from working at the same time and affecting normal cooling, the damper heater 21 must be forced to stop working when the damper 2 is open. When cooling is stopped and the damper 2 is closed, the damper heater 21 must be turned on for 10 minutes.

[0044] The second temperature sensor 4 and the damper heater 21 installed on the surface of the damper 2 must be well insulated to avoid other safety accidents caused by water droplets appearing on the surface of the damper 2.

[0045] Example 2:

[0046] When the damper 2 is closed, the temperature near the damper 2 is collected. When the temperature near the damper 2 is ≤ the first preset temperature Tx1, the software is written into the main control board to drive the damper heater 21 to start heating for 10 minutes, so that the surface temperature of the damper 2 increases. If the temperature of the damper 2 increases to above the second preset temperature Tx2 at this time, the damper heater 21 stops working and the damper 2 is reset once. If the temperature of the damper 2 does not increase to above Tx2, the damper heater 21 continues to work for 10 minutes.

[0047] If the temperature of the damper 2 reaches Tx2 or above during the second heating, the damper heater 21 stops working and the damper 2 is reset once. If the temperature is still not reached, the damper 2 is reset once, and then the current first temperature sensor temperature Tc1 is immediately collected. The fan component 7 runs for 5 minutes, and after 5 minutes, the first temperature sensor 11 temperature Tc2 is collected again. If Tc1>Tc2+1℃, the damper 2 is judged to be frost-blocked, and the display panel displays the damper 2 fault code. If Tc1≤Tc2+1℃, the damper 2 is judged to be normal.

[0048] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in a sequence other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0049] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and this embodiment will not be described in detail here.

[0050] The serial numbers of the above embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0051] In the above embodiments of the present application, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0052] The above is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A damper structure, characterized in that: include: A refrigerating chamber (1), wherein a first temperature sensor (11) is provided in the refrigerating chamber (1); the refrigerating chamber (1) includes an air inlet; A damper (2), the damper (2) being used to open or close the air inlet; an air supply structure (3), the air supply structure (3) introducing a refrigeration airflow into the refrigeration chamber (1) through the air inlet; a second temperature sensor (4), the second temperature sensor (4) being used to detect the temperature at the damper (2); A testing module (5) is connected to the first temperature sensor (11) and the second temperature sensor (4) for signal communication, and the testing module (5) determines whether the damper (2) is faulty based on the detection values ​​of the first temperature sensor (11) and the second temperature sensor (4).

2. The damper structure according to claim 1, characterized in that: The inspection module (5) comprises: A comparison module, wherein a preset temperature value is provided in the comparison module, and the comparison module is used to compare the preset temperature value with the detection values ​​of the first temperature sensor (11) and the second temperature sensor (4); An alarm module is connected to the comparison module by signal, and the alarm module issues an alarm according to the comparison result of the comparison module.

3. The damper structure according to claim 1, characterized in that: The damper structure further comprises a damper heater (21), which is arranged on the damper (2) and used to heat the damper (2). The damper heater (21) is connected to the inspection module (5) by signal.

4. The damper structure according to claim 1, characterized in that: The damper structure comprises: A timer (6), the timer (6) being used to record the refrigeration time of the refrigeration chamber (1); an ambient temperature sensor (8), the ambient temperature sensor (8) being used to detect the temperature of the external environment of the damper structure; The timer (6) and the ambient temperature sensor (8) are both connected to the detection module (5) by signal; the refrigeration time is the time during which the air supply structure introduces cooling air into the refrigeration chamber (1).

5. The damper structure according to claim 1, characterized in that: There are multiple refrigeration chambers (1); there are multiple dampers (2); and the multiple refrigeration chambers (1) and the multiple dampers (2) are arranged in a one-to-one correspondence.

6. The damper structure according to claim 1, characterized in that: The air supply structure includes: Heat exchange components, used to generate cooling capacity; A fan component (7) is provided at the heat exchange component to blow the cold energy generated by the heat exchange component to the air inlet.

7. A refrigerator comprising a damper structure, characterized in that: The damper structure is the damper structure according to any one of claims 1 to 6.

8. The refrigerator according to claim 7, characterized in that The refrigerator comprises: A freezing chamber (9) is connected to the air inlet of the refrigeration chamber (1) of the damper structure; the air supply structure (3) is used to blow the refrigeration air flow in the freezing chamber (9) to the air inlet.

9. The refrigerator according to claim 8, characterized in that The refrigeration chamber (1) comprises a refrigeration space (13) and a temperature-variable space (12), wherein the refrigeration space (13) is located above the freezing chamber (9); the temperature-variable space (12) is located on one side of the refrigeration space (13); the refrigeration space (13) and the temperature-variable space (12) both have air inlets connected to the refrigeration space (13); and the damper (2) comprises a refrigeration damper (23) for opening or closing the refrigeration space (13) and a temperature-variable damper (22) for opening or closing the temperature-variable space (12).

10. The refrigerator according to claim 8, characterized in that The freezing chamber (9) has a refrigeration component for refrigeration, and the air supply structure (3) includes a fan component (7) arranged at the refrigeration component.

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