Refrigerator

Abstract

The utility model relates to the technical field of refrigerators, and provides a refrigerator which comprises a refrigerator body, a door body and a thermocouple, the door body is rotationally connected to the refrigerator body through a hinge, the hinge is a first metal piece, one end of the thermocouple is connected to the hinge, and the other end of the thermocouple is connected to a second metal piece of the door body or the refrigerator body. The two ends of the thermocouple are connected with different metals to measure the environment temperature, the response speed is higher, the thermocouple is installed at the hinge position which is sensitive to temperature change and easy to measure, the temperature change of the door body and the surrounding environment of the door body is directly reflected, the accuracy and representativeness of the measurement result can be ensured, and the temperature detection precision is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of refrigerators, and particularly relates to a refrigerator. BACKGROUND

[0002] In the related art, the collection of the ambient temperature of the refrigerator door body usually depends on resistance temperature sensors, such as thermistors or thermal resistors. However, these sensors can be affected by various factors, resulting in measurement errors. CONTENT

[0003] Embodiments of the application provide a refrigerator to solve the problem of inaccurate detection of the ambient temperature of the refrigerator.

[0004] In a first aspect, embodiments of the application provide a refrigerator, comprising:

[0005] a cabinet;

[0006] a door body rotatably connected to the cabinet by a hinge, the hinge being a first metal piece;

[0007] a thermocouple, one end of the thermocouple being connected to the hinge, and the other end of the thermocouple being connected to a second metal piece of the door body or the cabinet.

[0008] In some embodiments of the application, one end of the thermocouple is connected to the hinge, and the other end of the thermocouple is connected to the door body.

[0009] In some embodiments of the application, the thermocouple comprises a first lead and a second lead connected to each other, the first lead being connected to the hinge, and the second lead being connected to the door body.

[0010] In some embodiments of the application, the hinge is provided with a first accommodating groove, and the first lead is mounted in the first accommodating groove.

[0011] In some embodiments of the application, the door body is provided with a second accommodating groove, and the second lead is mounted in the second accommodating groove.

[0012] In some embodiments of the application, one of the first lead and the second lead is a copper lead, and the other is a nichrome lead.

[0013] In some embodiments of the application, the number of the hinges is multiple, and each of the hinges is provided with the thermocouple.

[0014] In some embodiments of the application, the hinge is connected to multiple thermocouples.

[0015] In some embodiments of the application, the cabinet is provided with a hinge cover, the hinge cover is arranged outside the hinge, and the thermocouple is located in the hinge cover.

[0016] In some embodiments of the present application, a first shielding film is arranged on the surface of the hinge; and / or, a second shielding film is arranged on the surface of the door body.

[0017] In some embodiments of the present application, a measurement table is arranged between the first lead wire and the second lead wire, and the measurement table is used to measure the electromotive force difference between the door body and the hinge.

[0018] In some embodiments of the present application, the refrigerator further comprises:

[0019] a data processing module, configured to determine temperature information of the refrigerator based on the electromotive force difference between the door body and the hinge;

[0020] a wireless communication module, configured to send the temperature information to a controller of the refrigerator.

[0021] The refrigerator provided by the embodiments of the present application comprises a box body, a door body and a thermocouple. The door body is rotationally connected to the box body through a hinge. The hinge is a first metal piece. One end of the thermocouple is connected to the hinge, and the other end of the thermocouple is connected to a second metal piece of the door body or the box body. The environment temperature is measured by connecting different metals at two ends of the thermocouple. The response speed is faster. The thermocouple is installed at the hinge which is sensitive to temperature change and easy to measure. The temperature change of the door body and the surrounding environment is directly reflected. The accuracy and representativeness of the measurement result can be ensured, and the detection precision of the environment temperature is improved.

[0022] Additional aspects and advantages of the present application will be made apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0024] In order to more completely understand the present application and its beneficial effects, the following will be described with reference to the drawings. In the following description, the same reference numerals represent the same parts.

[0025] Figure 1 The structure diagram of the refrigerator provided by the embodiments of the present application Figure 1 .

[0026] Figure 2 The connection diagram of the thermocouple provided by the embodiments of the present application.

[0027] Figure 3 The structure diagram of the hinge provided by the embodiments of the present application.

[0028] Figure 4 A structural schematic diagram of a temperature detection system of a refrigerator provided in an embodiment of the present application.

[0029] Figure 5 A structural schematic diagram of a refrigerator provided in an embodiment of the present application Figure 2 .

[0030] Reference signs:

[0031] 100, cabinet; 110, hinge; 200, door body; 300, thermocouple; 310, first lead wire; 320, second lead wire. DETAILED DESCRIPTION

[0032] The embodiments of the present application will be further described below in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0033] In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0034] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0035] In the embodiments of the present application, unless specifically defined and limited otherwise, a first feature is "on", "under", "above", or "over" a second feature can mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over", and "on" the second feature can mean that the first feature is directly above or obliquely above the second feature, or only means that the first feature is horizontally higher than the second feature. The first feature "below", "under", and "under" the second feature can mean that the first feature is directly below or obliquely below the second feature, or only means that the first feature is horizontally lower than the second feature.

[0036] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0037] In the related art, the collection of ambient temperature usually depends on resistance temperature sensors, such as thermistors or thermal resistors. However, these sensors may be affected by various factors in a specific environment (such as the refrigerator door body hinge position), resulting in measurement errors. In addition, the response speed and accuracy of the resistance temperature sensor are also limited.

[0038] The embodiments of the present application provide a refrigerator and a refrigerator to solve the problem of inaccurate detection of the ambient temperature of the existing refrigerator. The following will be described in conjunction with the accompanying Figures 1-5 The description.

[0039] The refrigerator provided by the embodiments of the present application, in combination Figures 1-3 As shown in the figure, it comprises a cabinet 100, a door body 200 and a thermocouple 300, the door body 200 is rotatably connected to the cabinet 100 through a hinge 110, the hinge is a first metal piece, one end of the thermocouple 300 is connected to the hinge 110, and the other end is connected to a second metal piece of the door body 200 or the cabinet 100.

[0040] It can be understood that the cabinet 100 is the main part of the refrigerator, used to provide a refrigeration space or a freezing space for food, the door body 200 is connected to the cabinet 100 through the hinge 110 to realize the opening and closing function of the food storage space, and the two ends of the thermocouple 300 are connected to the hinge 110 and the door body 200 or the cabinet 100 respectively, used to measure the ambient temperature near the refrigerator door body 200.

[0041] It can be understood that the working principle of the thermocouple 300 is based on the Seebeck effect. When two conductors of different materials (the first metal piece and the second metal piece) form a closed loop and there is a temperature difference between the two ends, a thermoelectric electromotive force will be generated in the loop, and the size of the electromotive force is proportional to the temperature difference between the two ends.

[0042] The thermocouple 300 can quickly respond to changes in the ambient temperature due to its physical properties, ensuring the real-time nature of the temperature data. The thermocouple 300 is installed at the hinge 110 of the refrigerator, which is a sensitive area for temperature changes in the refrigerator, and can capture small temperature fluctuations, directly reflecting the temperature changes of the door body 200 and its surrounding environment, ensuring the accuracy and representativeness of the measurement results, and improving the detection accuracy of the temperature of the refrigerator environment.

[0043] In an optional embodiment, as shown in FIG. 1, one end of the thermocouple 300 is connected to the hinge 110, and the other end is connected to the door body 200. Figure 2

[0044] The traditional thermistor temperature sensor requires additional installation space and complex wiring design, and the traditional thermocouple 300 needs to be provided with separate electrodes of different materials on both sides. In the present embodiment, by directly connecting the two ends of the thermocouple 300 to the door body 200 and the hinge 110 of different materials, a closed loop is formed, and the thermocouple 300 temperature sensor is directly integrated between the refrigerator door body 200 and the metal hinge 110, breaking through the limitation of the traditional temperature sensor requiring additional installation space and complex wiring. Moreover, by using part of the structure of the refrigerator as a component of the thermocouple 300, the door body 200 and the hinge 110 themselves serve as the two electrodes of the thermocouple 300, i.e., the hinge 110 can serve as the first electrode of the thermocouple 300, and the door body 200 can serve as the second electrode of the thermocouple 300, so that no additional electrodes are needed, achieving structural integration and functional integration, simplifying the installation and maintenance of the thermocouple 300, and enabling direct measurement of the ambient temperature around the door body 200, improving the accuracy and reliability of the measurement.

[0045] Optionally, the material of the door body 200 (i.e., the second metal piece) can be steel, and the material of the hinge 110 (i.e., the first metal piece) can be stainless steel or other conductive metal, which is not limited in the present embodiment.

[0046] In an optional embodiment, as shown in FIG. 1, one end of the thermocouple 300 is connected to the hinge 110, and the other end is connected to the door body 200. Figure 2 ​As shown, the thermocouple 300 comprises a first lead wire 310 and a second lead wire 320 connected to each other, the first lead wire 310 is connected to the hinge 110, and the second lead wire 320 is connected to the door body 200. The first lead wire 310 and the second lead wire 320 form a closed loop with the door body 200 and the hinge 110. When there is a temperature gradient between the door body 200 and the hinge 110 of the refrigerator, a thermoelectric electromotive force is generated. By measuring the electromotive force in the loop of the thermocouple 300, the temperature difference between the door body 200 and the hinge 110 can be determined.

[0047] In an optional embodiment, the hinge 110 is provided with a first accommodating groove, and the first lead wire 310 is installed in the first accommodating groove; and / or, the door body 200 is provided with a second accommodating groove, and the second lead wire 320 is installed in the second accommodating groove. By providing the first accommodating groove and the second accommodating groove, the first lead wire 310 and the second lead wire 320 can be fixed and guided, preventing the lead wires from falling off or loosening due to vibration or door opening during use of the refrigerator, avoiding entanglement of the lead wires or interference with other components, maintaining the neatness and aesthetics of the thermocouple wiring, and reducing the external space occupied by the lead wires, achieving compact installation of the thermocouple.

[0048] In an optional embodiment, one of the first lead wire 310 and the second lead wire 320 is a copper lead wire, and the other is a nichrome lead wire. The first lead wire 310 and the second lead wire 320 serve as two lead wires of the thermocouple 300, and can be welded to the steel plate of the refrigerator door body 200 and the stainless steel hinge 110, respectively, to form a closed loop, facilitating fixation of the position of the thermocouple 300.

[0049] In an optional embodiment, the number of hinges 110 is multiple, and each hinge 110 is provided with a thermocouple 300. For example, the refrigerator door body 200 is provided with hinges 110 around the periphery, and the hinges 110 around the periphery are provided with thermocouples 300 for detecting temperature, which helps to more comprehensively understand the temperature distribution of the refrigerator and its surrounding environment. In another optional embodiment, the hinge 110 is connected to multiple thermocouples 300. The multiple thermocouples 300 can be independently arranged with each other. When one thermocouple 300 malfunctions, the other thermocouples 300 can still work normally, increasing the safety of the device and reducing measurement errors. The multiple thermocouples 300 can also be connected in series or in parallel, which is not limited in the present embodiment.

[0050] In an optional embodiment, the cabinet 100 is provided with a hinge cover (not shown in the figure), and the hinge cover covers the outside of the hinge 110, and the thermocouple 300 is located in the hinge cover.

[0051] In the embodiment, the hinge cover can be made of plastic or other materials, and is used to cover and protect the hinge 110, and the thermocouple 300 is also located inside the hinge cover when connected to the hinge 110, which is beneficial to prevent the thermocouple 300 from being disturbed by external factors such as temperature fluctuation, humidity change or mechanical vibration, thereby improving the accuracy of temperature measurement, enhancing the durability and maintainability of the refrigerator, and better adapting to the needs of long-term use and different environmental conditions of the refrigerator.

[0052] In an optional embodiment, a first shielding film (not shown in the figure) is arranged on the surface of the hinge 110; and / or, a second shielding film (not shown in the figure) is arranged on the surface of the door body 200. The first shielding film and the second shielding film can shield the electric field interference on the surfaces of the hinge 110 and the door body 200, ensure that the measurement result of the thermocouple 300 is not affected by external electric field, and also effectively prevent mutual interference between electrodes, further ensuring the accuracy and safety of the sensor measurement result.

[0053] In an optional embodiment, a measurement table (not shown in the figure) is arranged between the first lead wire 310 and the second lead wire 320, and the measurement table is used to measure the electromotive force difference between the door body 200 and the hinge 110, thereby facilitating the calculation of the temperature difference between the door body 200 and the hinge 110.

[0054] In an optional embodiment, in combination with Figure 2 and Figure 4 It is shown that the refrigerator further comprises a data processing module and a wireless communication module, the data processing module is used to convert the temperature information of the refrigerator based on the electromotive force difference between the door body 200 and the hinge 110, and can be based on cold end temperature compensation and temperature characteristics of the thermocouple 300, and the wireless communication module is used to send the temperature information to the controller of the refrigerator, which can be realized through Bluetooth, Wi-Fi or other wireless communication technologies, facilitating the controller of the refrigerator to monitor the environmental temperature state around the door body 200 and make corresponding adjustment.

[0055] The refrigerator provided by the embodiment of the application comprises a box body 100, a door body 200 and a thermocouple 300, the door body 200 is rotationally connected to the box body 100 through a hinge 110, one end of the thermocouple 300 is connected to the hinge 110, and the other end is connected to the door body 200 or the box body 100. By using the thermocouple 300 to measure the environmental temperature, the response speed is faster, and the thermocouple 300 is installed at the hinge 110 which is sensitive to temperature change and easy to measure, directly reflecting the temperature change of the door body 200 and the surrounding environment, which can ensure the accuracy and representativeness of the measurement result, and improve the temperature detection precision.

[0056] It can be understood that, referring to Figure 1 and Figure 5As shown, the refrigerator of the embodiment can include but is not limited to a single-door refrigerator, a double-door refrigerator, a cross-door refrigerator, and the like.

[0057] In use, the measurement accuracy of the thermocouple 300 can be affected by the cold end temperature change, and a corresponding compensation algorithm can be used for cold end compensation to eliminate the influence of the cold end temperature change on the temperature measurement result.

[0058] Further, in some real-time modes, Kalman filtering algorithm can also be used to process the electromotive force difference data to eliminate noise, reduce errors, and improve the accuracy and stability of the temperature data. Optionally, the data processing strategy can also be dynamically adjusted according to the working state of the refrigerator, the environmental temperature change, and the like, to ensure that the environmental temperature data with higher accuracy is obtained as much as possible under different conditions, and the temperature control system in the refrigerator can be combined to monitor the environmental temperature of the refrigerator door 200 in real time, and the working mode of the refrigerator can be adjusted in time according to the environmental temperature change. Through intelligent algorithms, the system can predict the change trend of the environmental temperature (such as the temperature change caused by seasonal alternation), and adjust the refrigeration power and other parameters of the refrigerator in advance to maintain the stability of the internal temperature of the refrigerator.

[0059] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the present application, and are not limited to the present application. Although the present application is described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present application do not deviate from the spirit and scope of the present application, and should be covered in the protection scope of the present application.

Claims

1. A refrigerator characterized by comprising: The application relates to a refrigerator, which comprises: a box body; a door body connected to the box body through a hinge, wherein the hinge is a first metal piece; a thermocouple, one end of which is connected to the hinge and the other end of which is connected to a second metal piece of the door body or the box body.

2. The refrigerator according to claim 1, characterized in that, One end of the thermocouple is connected to the hinge and the other end is connected to the door body.

3. The refrigerator according to claim 1, characterized in that, The number of the hinges is plural, and each hinge is provided with the thermocouple. And / or, the hinge is connected with a plurality of thermocouples.

4. The refrigerator according to claim 1, characterized in that, The box body is provided with a hinge cover, which covers the outside of the hinge, and the thermocouple is located in the hinge cover.

5. The refrigerator according to claim 2, characterized in that, The surface of the hinge is provided with a first shielding film; and / or the surface of the door body is provided with a second shielding film.

6. The refrigerator according to claim 1, characterized in that, The thermocouple comprises a first lead wire and a second lead wire connected to each other, the first lead wire is connected to the hinge, and the second lead wire is connected to the door body.

7. The refrigerator according to claim 6, characterized in that The hinge is provided with a first accommodating groove, and the first lead wire is installed in the first accommodating groove. And / or, the door body is provided with a second accommodating groove, and the second lead wire is installed in the second accommodating groove.

8. The refrigerator according to claim 6, characterized in that, One of the first lead wire and the second lead wire is a copper lead wire, and the other is a nichrome lead wire.

9. The refrigerator according to claim 6, characterized in that, A measuring table is arranged between the first lead wire and the second lead wire, and the measuring table is used for measuring the electromotive force difference between the door body and the hinge.

10. The refrigerator according to claim 9, characterized in that, The refrigerator further comprises: a data processing module, which is used for determining the temperature information of the refrigerator based on the electromotive force difference between the door body and the hinge; a wireless communication module, which is used for sending the temperature information to the controller of the refrigerator.

Images