Refrigerator

Abstract

The utility model discloses a refrigerator which comprises a machine cabinet, a refrigerator door, a refrigerator door, a refrigerator door, a refrigerator door, a refrigerator door and a refrigerator door, the at least one gas sensor is at least arranged in the press cabin; the refrigerant detection module is arranged on the cabinet and comprises a power supply circuit, a refrigerant detection module and a control module; the control unit receives the refrigerant concentration detected by the gas sensor; the power supply control circuit is connected with the control unit, and is used for disconnecting a path between an alternating current power supply and the power supply end of the refrigerator when at least one of all the refrigerant concentrations detected by the gas sensors exceeds a threshold value, and disconnecting the path between the alternating current power supply and the power supply end of the refrigerator when each of all the refrigerant concentrations detected by the gas sensors is lower than the threshold value; and connecting an access between an alternating-current power supply and the power supply end of the refrigerator. Through the independently designed refrigerant detection module, when the leakage concentration of the refrigerant reaches a certain degree, a refrigerator power supply is cut off, and reliable work of the refrigerator and personal safety of a user are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a refrigerator. Background Art

[0002] Refrigerators are essential appliances for every household. Currently, refrigerators mainly use isobutane R600A as refrigerant. R600A gas is flammable and can form an explosive mixture when mixed with air. It is dangerous to burn and explode when encountering heat sources and open flames. In addition, although R600A has low toxicity, excessive inhalation is harmful to the human body. It has a weak stimulating and anesthetic effect, which mainly manifests as headache, dizziness, drowsiness, nausea, etc. In severe cases, coma may occur, leading to safety hazards.

[0003] The refrigerator cabinet contains the circuit part and the high-pressure part of the refrigeration system pipeline, and has many joints. Under normal circumstances, the probability of refrigerator refrigerant leakage is very small. However, with the increasing service life of the refrigerator, the vibration caused by long-term work or the aging of the refrigeration pipeline, the copper tube of the refrigeration system pipeline may cause cracks, loose joints, etc., resulting in refrigerant leakage. The refrigerant R600A is colorless and odorless. Once it leaks, it is not easy to be discovered. At the very least, it affects your health and the refrigerator cannot be refrigerated normally. At worst, when the concentration of the refrigerant gas leaked into the air reaches a certain level, it will ignite and cause a fire when it encounters sparks or open flames, seriously threatening the personal and property safety of users.

[0004] Therefore, refrigerant leakage needs to be dealt with in a timely manner to avoid the above-mentioned safety hazards.

[0005] In the prior art, a refrigerant sensing device is installed in the room to sense the refrigerant concentration in the room, and an alarm is made based on the refrigerant concentration to remind the user.

[0006] This method indirectly detects the refrigerant concentration in the room and cannot directly reflect the refrigerant leakage in the refrigerator. In addition, the sensing device needs to be arranged in multiple rooms, and the wiring is complicated and cumbersome.

[0007] Some refrigerant leakage detection modules are designed to be integrated with the circuit part of the refrigerator or air conditioner, which is inconvenient for subsequent maintenance.

[0008] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0009] In response to the problems pointed out in the background technology, the present application provides a refrigerator. Through an independently designed refrigerant detection module, when the refrigerant leakage concentration reaches a certain level, the refrigerator power supply is disconnected to ensure the reliable operation of the refrigerator and the personal safety of the user.

[0010] In order to achieve the above-mentioned utility model purpose, the utility model adopts the following technical solutions:

[0011] The present application relates to a refrigerator, comprising:

[0012] A cabinet having a storage room, the storage room being divided into a freezing room and a refrigerating room, and a compressor compartment for accommodating a compressor being located at a rear lower portion of the cabinet;

[0013] at least one gas sensor disposed at least in the press chamber;

[0014] A refrigerant detection module is provided on the cabinet, and the refrigerant detection module comprises:

[0015] A power supply circuit, which receives an AC power source and provides power to electrical components in the refrigerant detection module;

[0016] A refrigerant detection circuit, connected to the gas sensor, for receiving the refrigerant concentration detected by each gas sensor at the location;

[0017] A control unit connected to the refrigerant detection circuit;

[0018] A power control circuit is connected to the control unit and is used to disconnect the path between the AC power supply and the refrigerator power supply terminal when at least one of all refrigerant concentrations detected by each gas sensor exceeds a threshold value, and to connect the path between the AC power supply and the refrigerator power supply terminal when each of all refrigerant concentrations detected by each gas sensor is lower than the threshold value.

[0019] In the refrigerator involved in the present application, since the compressor compartment is a place where refrigerant is easily leaked, a gas sensor is at least directly arranged in the compressor compartment, so that the detection result is more accurate and more timely.

[0020] When at least one of the refrigerant concentrations detected by the gas sensors exceeds a threshold, the power path is disconnected, thereby reducing safety hazards to a minimum level.

[0021] In addition, the designed refrigerant detection module is modularly designed and arranged on the cabinet, so that it is convenient to maintain the refrigerant detection module in the later stage.

[0022] In some embodiments of the present application, the refrigerant detection module further includes:

[0023] A bottom shell, which is open at the top and has a bottom wall and surrounding side walls, wherein a sunken first line-passing portion is formed on the bottom wall, and a second line-passing portion is formed on the first side wall of the bottom shell;

[0024] A cover shell is arranged on the bottom shell, a mounting opening is provided on the sheet metal of the cabinet, the cover shell can be detachably mounted to the mounting opening, a storage space for accommodating various components of the refrigerant detection module is formed between the cover shell and the bottom shell, and a third wire-passing portion is formed on the side wall of the cover shell corresponding to the first side wall of the bottom shell;

[0025] A power line connected to an AC power source extends into the accommodation space through the second line passing portion and the third line passing portion;

[0026] The signal line of the electrical component in the refrigerator connected to the electrical component in the refrigerant detection module extends into the accommodating space through the first line passing portion.

[0027] The refrigerant detection module involved in the present application is formed into an independent module by assembling a cover shell and a bottom shell, which is convenient for designing the various electrical components of the detection module and is also easy to arrange on a cabinet for external repair and maintenance.

[0028] In some embodiments of the present application, a first lug is disposed on the first side wall of the bottom shell, and the first lug extends away from the first side wall of the bottom shell;

[0029] A second lug is disposed on a second side wall of the bottom shell opposite to the first side wall thereof, and the second lug extends away from the second side wall of the bottom shell;

[0030] The cover shell has a top wall and surrounding side walls, and a mounting flange is formed at least at the side wall edge corresponding to the first side wall and / or the second side wall of the cover shell and the bottom shell, the mounting flange is vertically butted with the side wall edge corresponding to the mounting flange, and a mounting hole is opened on the mounting flange;

[0031] When the refrigerant detection module is installed at the mounting opening, the first lug and the second lug are both located below the edge of the mounting opening, and the mounting flange is located above the edge of the mounting opening, and the screws are fixed through the mounting holes on the mounting flange, the mounting holes on the sheet metal edge, the mounting holes on the first lug, and / or the mounting holes on the second lug.

[0032] The refrigerant detection module involved in the present application can be detachably installed at the installation port, so that the refrigerant detection module can be easily disassembled and assembled.

[0033] In some embodiments of the present application, a first lug is disposed on the first side wall of the bottom shell, and the first lug extends away from the first side wall of the bottom shell;

[0034] A second lug is disposed on a second side wall of the bottom shell opposite to the first side wall thereof, and the second lug extends away from the second side wall of the bottom shell;

[0035] The cover shell has a top wall and surrounding side walls, a first mounting flange is formed at the edge of the side wall corresponding to the first side wall of the cover shell and the bottom shell, the first mounting flange is vertically butted with the edge of the side wall corresponding to the first mounting flange, and a first mounting hole is opened on the first mounting flange;

[0036] An assembly hole is formed on the second side wall of the cover shell corresponding to the second side wall of the bottom shell;

[0037] A latching protrusion is formed on the second side wall of the bottom shell and is located above the second protruding ear;

[0038] When the cover shell is buckled on the bottom shell, the latching protrusion extends into the assembly hole;

[0039] When the refrigerant detection module is installed at the mounting opening, the first lug and the second lug are both located below the edge of the mounting opening, and the first mounting flange is located above the corresponding edge of the mounting opening, and the screws are fixed through the first mounting hole on the first mounting flange, the mounting hole on the sheet metal edge, and the mounting hole on the first lug.

[0040] The bottom shell and the cover shell involved in the present application are matched and positioned through assembly holes and latches, which facilitates the connection between the bottom shell and the cover shell.

[0041] In some embodiments of the present application, the refrigerant detection module is disposed on the top of the cabinet.

[0042] The refrigerant detection module is set on the top of the cabinet, which is not easy to observe and does not affect the overall appearance of the refrigerator.

[0043] In some embodiments of the present application, the first protrusion and the first side wall of the bottom shell are recessed at a corner to form a first recessed portion;

[0044] The second protrusion and the second side wall of the bottom shell are recessed at a corner to form a second recessed portion;

[0045] When the refrigerant detection module is installed at the installation opening, the sheet metal edge at the installation opening is inserted into the first recessed portion and the second recessed portion.

[0046] The cooperation between the first recessed portion and the second recessed portion and the sheet metal at the installation opening facilitates the positioning and installation of the detection module.

[0047] In some embodiments of the present application, an enabling switch has an on or off action;

[0048] an enabling switch circuit, which can output an enabling signal or a disabling signal to the control unit according to the action of the enabling switch, wherein when the control unit receives the enabling signal, the refrigerator enters a refrigerant detection on mode, and when the control unit receives the disabling signal, the refrigerator enters a refrigerant detection off mode;

[0049] In the refrigerant detection on mode, the refrigerator uses a gas sensor to detect the refrigerant leakage concentration;

[0050] In the refrigerant detection off mode, the refrigerator does not use a gas sensor to detect a refrigerant leakage concentration.

[0051] By setting the enabling switch module, the user can flexibly choose whether to perform refrigerant leakage detection.

[0052] The present application also relates to a refrigerator, comprising:

[0053] A cabinet having a storage room, the storage room being divided into a freezing room and a refrigerating room, and a compressor compartment for accommodating a compressor being located at a rear lower portion of the cabinet;

[0054] at least one gas sensor disposed at least in the press chamber;

[0055] A refrigerant detection module is provided on the cabinet, and the refrigerant detection module comprises:

[0056] A power supply circuit, which receives an AC power source and provides power to electrical components in the refrigerant detection module;

[0057] a control unit, which receives the refrigerant concentration detected by the gas sensor;

[0058] A power control circuit connected to the control unit, configured to disconnect the path between the AC power supply and the refrigerator power supply terminal when at least one of all refrigerant concentrations detected by the gas sensors exceeds a threshold value, and connect the path between the AC power supply and the refrigerator power supply terminal when each of all refrigerant concentrations detected by the gas sensors is lower than the threshold value;

[0059] The reminder unit is connected to the control unit and is used to output a reminder when at least one of all refrigerant concentrations detected by the gas sensors exceeds a threshold value.

[0060] While disconnecting the power supply of the refrigerator, a reminder will also be output to the user to ensure that the user is aware of the current refrigerant leakage in a timely manner, and needs to open windows for ventilation, turn off the main power and report the danger to avoid the dangerous situation from continuing.

[0061] In some embodiments of the present application, the reminder unit is an acoustic alarm circuit, an optical alarm circuit, or an acoustic and optical alarm circuit;

[0062] When the reminder unit is a sound alarm circuit, when at least one of all refrigerant concentrations detected by each gas sensor exceeds a threshold value, a sound alarm reminder is output;

[0063] When the reminder unit is a light alarm circuit, when at least one of all refrigerant concentrations detected by each gas sensor exceeds a threshold value, a sound alarm reminder is output;

[0064] When the reminder unit is an audible and visual alarm circuit, when at least one of all refrigerant concentrations detected by the gas sensors exceeds a threshold, an audible and visual alarm reminder is output.

[0065] In some embodiments of the present application, the reminder unit includes:

[0066] A display panel power supply control module connected to the control unit, which controls the passage between the power supply and the power supply end of the display panel of the refrigerator to be turned on when at least one of all refrigerant concentrations detected by the gas sensors exceeds a threshold;

[0067] The control unit is connected to the display panel and is used for displaying a reminder when the display panel is powered on.

[0068] When the refrigerant concentration exceeds the threshold, the refrigerator is powered off, and the display panel is also powered off. Therefore, in order to be able to intuitively display the refrigerant leakage fault to the user on the display panel, the display panel is independently powered to display the fault.

[0069] In some embodiments of the present application, the reminder displayed on the display panel is a fault code reminder or an alarm reminder.

[0070] In some embodiments of the present application, a WiFi module is provided on the display panel, which is connected to the cloud for remote transmission of the reminder.

[0071] With remote transmission reminders, users can receive push messages on their mobile phones anytime and anywhere, even if they are not at home, to ensure they are informed of alarm reminders.

[0072] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0073] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0074] Figure 1 A three-dimensional diagram of a refrigerator embodiment according to the present application;

[0075] Figure 2 is a three-dimensional diagram of a refrigerator embodiment according to the present application, wherein the refrigerator door is opened;

[0076] Figure 3 A refrigeration system in a refrigerator embodiment according to the present application;

[0077] Figure 4 A schematic diagram showing the connection between the refrigerant detection module and the refrigerator in the refrigerator embodiment proposed in the present application;

[0078] Figure 5 A partial perspective view of a refrigerator embodiment according to the present application;

[0079] Figure 6 The structure frame of the refrigerator embodiment proposed in this application is connected to the refrigerant detection module and the refrigerator. Figure 1 ;

[0080] Figure 7 A circuit diagram of a power control circuit of a refrigerant detection module according to an embodiment of a refrigerator proposed in the present application;

[0081] Figure 8 A circuit diagram of a display panel power control module of a refrigerant detection module in a refrigerator embodiment according to the present application;

[0082] Fig. 9 It is a layout diagram of the refrigerant detection module in the refrigerator embodiment proposed in the present application;

[0083] Fig.10 It is a front view of the bottom shell of the refrigerant detection module in the refrigerator embodiment proposed in the present application;

[0084] Fig.11 A top view of a bottom shell of a refrigerant detection module according to an embodiment of a refrigerator proposed in the present application;

[0085] Fig.12 It is a left view of the bottom shell of the refrigerant detection module in the refrigerator embodiment proposed in the present application;

[0086] Fig.13It is a front view of a housing of a refrigerant detection module in an embodiment of a refrigerator proposed in the present application;

[0087] Fig.14 A top view of a housing of a refrigerant detection module in a refrigerator embodiment according to the present application;

[0088] Fig.15 It is a right side view of the housing of the refrigerant detection module in the refrigerator embodiment proposed in the present application;

[0089] Fig.16 It is a left view of the housing of the refrigerant detection module according to the refrigerator embodiment proposed in the present application;

[0090] Fig.17 It is a schematic diagram of a cover and a bottom shell of a refrigerant detection module in a refrigerator embodiment proposed in the present application being fixed to a top sheet metal of the refrigerator;

[0091] Fig.18 The structure frame of the refrigerator embodiment proposed in this application is connected to the refrigerant detection module and the refrigerator. Figure 2 ;

[0092] Fig.19 A circuit diagram of an enabling switch circuit in a refrigerant detection module according to an embodiment of a refrigerator proposed in the present application;

[0093] Reference numerals:

[0094] 1. Refrigerator; 100. Storage room; 100A. Freezer; 100B. Refrigerator; 200. Door; 200A. Freezer door; 200B. Refrigerator door; 200C. Sheet metal; 300. Refrigeration system; 310. Compressor; 310A. Compressor compartment; 311A. First gas sensor; 320. Condenser; 330. Solenoid valve; 340. Throttling device; 341. First throttling device; 342. Second throttling device; 350. Evaporator; 351. Refrigerator evaporator; 352. Freezer evaporator; 353. Second gas sensor; 360. Liquid storage device; 400. Refrigerant detection module; 410. Control unit; 420. Power supply circuit; 430. Power supply control circuit; 440. Refrigerant detection circuit; 450, display panel power control module; 460, enabling module; 470, bottom shell; 471, bottom wall; 4711, first wire-passing part; 472, top opening; 473 / 474, side wall; 4731, second recessed part; 4741, second wire-passing part; 4742, first recessed part; 476, first lug; 475, second lug; 4761, mounting hole; 477, cam; 478 / 479, bump; 480, cover shell; 481, top wall; 482 / 483, side wall; 4821, assembly hole; 4831, third wire-passing part; 484, mounting flange; 4841, mounting hole; 500, main control board; 500A, display board; A, power cord plug; 600, screw. DETAILED DESCRIPTION

[0095] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0096] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0097] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0098] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0099] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0100] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0101] Figure 1 and Figure 2 is a stereogram of a specific embodiment of the refrigerator involved in this application; see Figure 1 and Figure 2 , the refrigerator of this embodiment has an approximately rectangular parallelepiped shape.

[0102] The refrigerator 1 includes a cabinet having a storage chamber 100 defining a storage space. The appearance of the refrigerator 1 is defined by the storage chamber 100 and a plurality of door bodies 200 disposed in the storage chamber 100. Figure 2 The door body 200 includes a door body outer shell (not marked) located outside the storage chamber 100, a door body inner shell (not marked) located inside the storage chamber 100, and an insulation layer (not marked) between the upper end cover and the lower end cover; usually, the insulation layer is filled with foam material.

[0103] The storage chamber 100 has an open box body, and the storage chamber 100 is divided into a freezing chamber 100A and a refrigerating chamber 100B. Generally, the freezing chamber 100A is at the bottom, and the refrigerating chamber 100B is at the top. Each of the separated spaces may have an independent storage space.

[0104] In detail, the freezing chamber 100A is defined at the lower side of the storage chamber 100 and may be selectively covered by the drawer type freezing chamber door body 200A. A space defined above the freezing chamber 100A is partitioned into left and right sides to respectively define the refrigerating chambers 100B.

[0105] The refrigerating chamber 100B may be selectively opened or closed by a refrigerating chamber door 200B pivotably mounted on the refrigerating chamber 100B.

[0106] See also Figure 3 and Figure 5 There is a compressor compartment 310A at the rear lower part of the cabinet, and the compressor compartment 310A is used to accommodate the compressor 310, which is generally located at the rear side of the freezer compartment 100A.

[0107] Figure 3 A refrigeration system 300 of the present invention of the present application is shown.

[0108] See also Figure 3 The refrigeration system 300 includes a compressor 310 , a condenser 320 , a throttling device 340 and an evaporator 350 , and a liquid storage tank 360 is arranged between the outlet of the freezer chamber evaporator 352 and the air intake port of the compressor 310 .

[0109] Among them, Figure 3 As shown, in this embodiment, the evaporator 350 includes a refrigerating chamber evaporator 351 and a freezing chamber evaporator 352 .

[0110] The high-temperature and high-pressure gaseous refrigerant discharged from the compressor 310 is cooled by the condenser 320 and becomes a liquid refrigerant at room temperature. It is divided into two paths by the solenoid valve 330. One path of the refrigerant enters the cold storage chamber evaporator 351 after throttling and reducing the pressure by the first throttling device 341 (for example, the first capillary tube), and the other path of the refrigerant enters the freezer chamber evaporator 352 after throttling and reducing the pressure by the second throttling device 342 (for example, the second capillary tube). The refrigerant pipeline flowing out of the cold storage chamber evaporator 351 is connected to the pipeline between the second throttling device 342 and the freezer chamber evaporator 352. The liquid refrigerant flowing out of the freezer chamber evaporator 352 flows back to the liquid storage tank 360, and the gaseous refrigerant flows back to the return air port of the compressor 310.

[0111] When there is a demand for cooling in the freezer compartment 100B, the compressor 310 starts, and the solenoid valve 330 is controlled to introduce the refrigerant into the pipeline where the second throttling device 342 is located. The refrigerant passes through the freezer compartment evaporator 352 and then flows into the return air port of the compressor 310 through the liquid storage tank 360. The cooling of the freezer compartment 100B is achieved through the above-mentioned cycle process.

[0112] When there is a demand for cooling in the cold storage room 100B, the solenoid valve 330 is controlled to introduce the refrigerant into the pipeline where the first throttling device 341 is located. The refrigerant passes through the cold storage room evaporator 351 and the freezer room evaporator 352 in turn, and then flows into the return air port of the compressor 310 through the liquid storage tank 360. The cold storage room 100B is cooled through the above-mentioned cycle process.

[0113] In order to directly detect refrigerant leakage during the operation of the refrigerator 1, the present application at least sets a gas sensor in the compressor chamber 310A, which is recorded as the first gas sensor 311A.

[0114] The first gas sensor 311A ​​is disposed at a position in the compressor chamber 310A that is prone to leakage, so as to detect the concentration of the leaked refrigerant more timely and directly.

[0115] In some embodiments of the present application, multiple gas sensors may be provided.

[0116] In some embodiments of the present application, three gas sensors may be provided, wherein one gas sensor may be provided in the press chamber 310A, one gas sensor may be provided near the refrigerating chamber evaporator 351 , and one gas sensor may be provided near the freezing chamber evaporator 352 .

[0117] See also Figure 5 A first gas sensor 311A ​​is arranged in the compressor chamber 310A, and a second gas sensor 353 is arranged at the freezer chamber evaporator 352.

[0118] See also Figure 4 The refrigerant detection module 400 is arranged between the power cord plug A and the power supply end of the refrigerator 1.

[0119] See also Figure 6 The refrigerant detection module 400 includes a power supply circuit 420 , a control unit 410 and a power supply control circuit 430 .

[0120] The control unit 410 serves as a control center of the refrigerant detection module 400 , and is connected to the refrigerant detection circuit 440 and the power control circuit 430 , respectively.

[0121] In some embodiments of the present application, the control unit 410 adopts a single-chip microcomputer chip.

[0122] The power supply circuit 420 receives an AC power source and provides power to various electrical components in the refrigerant detection module 400 .

[0123] The AC power supply can be introduced through the refrigerator power cord plug A and includes a ground wire E, a live wire L and a neutral wire N.

[0124] The refrigerant detection module 400 receives a DC power supply of +12V and / or +5V power, and therefore, the power supply circuit 420 is a power conversion module.

[0125] In some embodiments of the present application, the DC power output by the power supply circuit 420 supplies power to the power control circuit 430 and the control unit 410 .

[0126] The power supply circuit 420 may select an AC-DC power module, which can rectify AC220V to DC +5V or +12V. Different power modules are selected according to the requirements of the DC power supply size.

[0127] For example, when the rectification is to DC +5VDC, the power module can select a power chip with model number LD05-23BxxWR2.

[0128] In some embodiments of the present application, the gas sensor may be an intelligent micro gas sensor designed based on the NDIR principle, which uses the absorption characteristics of the gas to a specific infrared spectrum to measure the concentration.

[0129] When a certain concentration of gas is detected, a corresponding voltage signal is output at the analog output port of the gas sensor and transmitted to the control unit 410 .

[0130] In some embodiments of the present application, a refrigerant detection circuit 440 may also be provided, which receives the refrigerant concentration detected by the gas sensor and sends it to the control unit 410 .

[0131] The refrigerant detection circuit 440 may include a current limiting resistor and a filter capacitor.

[0132] The current limiting resistor is connected to the analog output port of the gas sensor to limit the current entering the single-chip microcomputer chip to protect the I / O port of the single-chip microcomputer chip. One end of the filter capacitor is respectively connected to one end of the current limiting resistor that is not connected to the analog output port of the gas sensor and the signal receiving end SIG1 of the single-chip microcomputer chip, and the other end of the filter capacitor is grounded.

[0133] In some embodiments of the present application, the power control circuit 430 is connected to the control unit 410, and is used to disconnect the path between the AC power supply and the power supply end of the refrigerator 1 when at least one of all refrigerant concentrations detected by each gas sensor exceeds a threshold value, thereby disconnecting the power supply to the refrigerator 1.

[0134] If the refrigerant concentration detected by any of the gas sensors exceeds a threshold value when three gas sensors are provided as described above, the path between the AC power supply and the power supply end of the refrigerator 1 is disconnected to ensure reliable detection.

[0135] If the refrigerant concentration detected by all gas sensors does not exceed the threshold value, the power supply of refrigerator 1 will be connected again, and refrigerator 1 will be powered on and work again, thus ensuring absolute safety.

[0136] In some embodiments of the present application, the power control circuit 430 can realize on and off of the power supply to the refrigerator 1 through a relay.

[0137] See also Figure 7 , the power control circuit 430 includes a first switch unit and a relay RY1.

[0138] The normally open contact of the relay RY1 is arranged between the AC power supply and the power supply terminal of the refrigerator 1 .

[0139] The first switch unit is controlled by the control unit 410, and its control end is connected to the first output port of the control unit 410, the first end is connected to one end of the relay RY1 coil, and the other end is grounded, wherein the other end of the relay RY1 coil is connected to the power supply +12VDC.

[0140] When the control unit 410 receives a signal that the refrigerant concentration detected by any gas sensor exceeds the threshold, it outputs a signal at the first output port to control the first switch unit to disconnect. At this time, the relay RY1 coil is not energized, and the normally open contact of the relay RY1 is disconnected. At this time, the path between the AC power supply and the power supply end of the refrigerator 1 is disconnected.

[0141] In some embodiments of the present application, see Figure 7 The first switch unit includes an NPN transistor Q1, a first base current limiting resistor R3 and a first base pull-down resistor R4.

[0142] The first base current limiting resistor R3 is used to limit the current flowing into the base of the NPN transistor Q1 to avoid burning the NPN transistor Q1 when the level output by the first output port of the single-chip microcomputer chip is unstable or high, thereby protecting the NPN transistor Q1.

[0143] The first base pull-down resistor R4 is used to ensure the normal operation of the NPN transistor Q1, prevent the NPN transistor Q1 from malfunctioning due to the influence of noise signals, make the transistor cutoff more reliable, and the base of the NPN transistor Q1 cannot be left floating. When the input signal is uncertain (such as when the input signal is in a high-impedance state), adding a pull-down resistor can effectively connect to the ground, and can discharge through the first base pull-down resistor R4 when the NPN transistor Q1 is turned off.

[0144] In some embodiments of the present application, the base of the NPN transistor Q1 is connected to the first output port, that is, the collector is connected to one end of the coil of the relay RY1, and the emitter is grounded.

[0145] When the control unit 410 receives a signal that the refrigerant concentration detected by any gas sensor exceeds a threshold value, when a low level is output at the first output port, the NPN transistor Q1 is turned off, the relay RY1 coil loses power, and the corresponding normally open contact is disconnected.

[0146] At this time, the AC current cannot power the refrigerator 1.

[0147] When the control unit 410 receives a signal that the refrigerant concentration detected by any gas sensor does not exceed the threshold, when the first output port outputs a high level, the NPN transistor Q1 is turned on, the relay RY1 coil is powered on, and the corresponding normally open contact is closed.

[0148] At this time, the AC current supplies power to the refrigerator 1 again.

[0149] In some embodiments of the present application, a reverse diode D1 is further provided in parallel with the coil of the relay RY1.

[0150] The anode of the diode D1 is respectively connected to one end of the coil of the relay RY1 and one end of the collector of the NPN transistor Q1, and the cathode is respectively connected to the other end of the coil of the relay RY1 and +12VDC.

[0151] At the moment when the relay RY1 coil is powered off, the large reverse current generated can be released through the diode D1, clamping the voltage at the forward conduction voltage of the diode D1, thereby protecting the rear-end NPN transistor Q1, and the parallel reverse diode D1 will prolong the action time of the relay RY1 coil.

[0152] In some embodiments of the present application, the power control circuit 430 may also be designed using a PNP transistor or an NMOS transistor, etc., which is not limited here.

[0153] In some embodiments of the present application, the refrigerant detection module 400 may further include a reminder unit, which is connected to the control unit 410 .

[0154] When at least one of all refrigerant concentrations detected by each gas sensor exceeds a threshold value, the control unit 410 outputs a reminder signal at the second output port, and the reminder signal is sent to the reminder unit, and the reminder unit outputs a reminder.

[0155] In some embodiments of the present application, the reminder unit may be an acoustic alarm circuit (not shown) that outputs an audible alarm reminder when at least one of all refrigerant concentrations detected by each gas sensor exceeds a threshold value.

[0156] The reminding unit may include a second switch unit and a buzzer, so as to remind the user through the buzzing sound of the buzzer.

[0157] The second switch unit is controlled by the single-chip microcomputer chip, and the second switch unit can also select the NPN transistor Q2.

[0158] One end of the second base current limiting resistor is connected to the second output port of the microcontroller chip, and the other end is connected to the base of the NPN transistor Q2. The emitter is grounded, and the collector is connected to the power supply +5VDC through a pull-up resistor. The power supply end of the buzzer is connected to the power supply +5VDC, and the ground end of the buzzer is connected to the collector of the NPN transistor Q2.

[0159] When the control unit 410 receives a signal that at least one of all refrigerant concentrations detected by the gas sensors exceeds the threshold, the second output port outputs a signal BUZ to control the NPN transistor Q2 to conduct, so that the power supply +5VDC supplies power to the buzzer, and the buzzer is controlled to emit a buzzing sound.

[0160] In some embodiments of the present application, the reminder unit may be a light alarm circuit (not shown) that outputs a light alarm reminder when at least one of all refrigerant concentrations detected by each gas sensor exceeds a threshold value.

[0161] The reminder unit may include a current limiting resistor and an indicator LED connected in series.

[0162] The anode of the indicator LED is connected to the power supply +5VDC, the cathode is connected to one end of the current limiting resistor, and the other end of the current limiting resistor is connected to the third output port of the single-chip microcomputer chip.

[0163] When the control unit 410 receives a signal that at least one of all refrigerant concentrations detected by the gas sensors exceeds a threshold, the third output port outputs a signal step3 to control the indicator LED to continuously flash or stay on.

[0164] In this way, the user can know the current refrigerant leakage situation by observing the lighting of the indicator LED.

[0165] In some embodiments of the present application, the refrigerant detection module 400 may also include other forms of reminder units.

[0166] See also Figure 6 , the reminder unit may include a display panel power control module 450 , which is connected to the control unit 410 .

[0167] The power supply circuit 420 also supplies power to the display panel power control module 450 .

[0168] When at least one of all refrigerant concentrations detected by the gas sensors exceeds a threshold value, control is performed to connect a path between the power supply and the power supply terminal of the display panel 500A of the refrigerator 1 .

[0169] Since the control unit 410 is connected to the display panel 500A, after the display panel 500A of the refrigerator 1 is powered on, the control unit 410 can send the refrigerant leakage fault to the display panel 500A to provide a fault reminder on the display panel 500A.

[0170] In some embodiments of the present application, a WiFi module (not shown) is provided on the display panel 500A, which is communicatively connected to the cloud (not shown) for remotely transmitting the above reminder.

[0171] With remote transmission reminders, users can receive push messages on their mobile phones anytime and anywhere, even if they are not at home, to ensure they are informed of alarm reminders.

[0172] In some embodiments of the present application, the display panel power control module 450 may also realize on-off power supply to the display panel 500A through a relay.

[0173] See also Figure 8 , the display panel power control module 450 includes a third switch unit and a relay RY2.

[0174] In order to facilitate wiring connection, the refrigerant detection module 400 is designed with a connection terminal row CN1.

[0175] The connection terminal row CN1 includes a first terminal, a second terminal and a third terminal, wherein the second terminal is connected to the power supply terminal of the display panel 500A, the first terminal is connected to the ground terminal of the display panel 500A, and the third terminal is connected to the communication terminal of the display panel 500A.

[0176] The normally open contact of relay RY2 is set between +5VDC and the second terminal.

[0177] The display panel power control module 450 includes a third switch unit and a relay RY2.

[0178] The normally open contact of relay RY2 is arranged between the DC power supply +5V and the second terminal of the connection terminal block.

[0179] The third switch unit is controlled by the control unit 410, and its control end is connected to the third output port of the control unit 410, the first end is connected to one end of the relay RY2 coil, and the other end is grounded, wherein the other end of the relay RY2 coil is connected to the power supply +12VDC.

[0180] The first terminal of the connection terminal row is also connected to the ground, and the third terminal is connected to the communication terminal of the control unit 410 through the current limiting resistor R6.

[0181] When the control unit 410 receives a signal that the refrigerant concentration detected by any gas sensor exceeds the threshold, the signal CTR is output at the third output port to control the third switch unit to be turned on. At this time, the relay RY2 coil is energized, and the normally open contact of the relay RY2 is turned on. At this time, the path between the +5VDC power supply and the power supply end of the display panel 500A is connected, and the display panel 500A is powered.

[0182] When the display panel 500A is powered, the control unit 410 sends the refrigerant leakage fault to the display panel 500A through the third terminal for display, for example, text display or fault code display.

[0183] In some embodiments of the present application, the third switch unit includes an NPN transistor Q3, a second base current limiting resistor R1 and a second base pull-down resistor R2.

[0184] In some embodiments of the present application, in order to facilitate the arrangement and maintenance of the refrigerant detection module 400, see Fig. 9 The refrigerant detection module 400 is independently designed as a module and is installed on the outermost sheet metal 200C of the cabinet.

[0185] See also Figures 10 to 17 The refrigerant detection module 400 includes a bottom shell 470 and a cover shell 480. The cover shell 480 is covered on the bottom shell 470 to form a receiving space therebetween. The electrical components in the refrigerant detection module 400 are arranged in the receiving space.

[0186] In some embodiments of the present application, in order to facilitate wiring, the circuit includes a power line connecting the AC power supply and the refrigerant detection module 400, and a signal line connecting the electrical components in the refrigerator (such as the display panel 500A, the gas sensor) and the refrigerant detection module 400.

[0187] See also Figures 10 to 12 The bottom shell 470 has a top opening 472 and a bottom wall 471 and surrounding side walls ( Fig.19Side walls 473 / 474 are shown).

[0188] A sunken first line-passing portion 4711 is formed on the bottom wall 471, and a second line-passing portion 4741 (see Fig.12 ).

[0189] The cover 480 is mounted at the mounting opening (not marked) on the sheet metal 200C of the cabinet, and a third wire-passing portion 4831 is formed on the side wall 483 (referred to as the first side wall 483) corresponding to the first side wall 474 of the cover 480 and the bottom shell 470 on which the second wire-passing portion 4741 is formed, see Fig.13 and Fig.16 .

[0190] See also Fig.17 The power cord (eg, power cord plug A) extends into the accommodating space through the second wire-passing portion 4741 and the third wire-passing portion 4831 to achieve electrical connection between the power cord and the power supply circuit 420 , as well as connection with the normally open contact of the power control circuit 430 .

[0191] As described above, the signal line connecting the electrical components in the refrigerant detection module 400 and the refrigerator extends into the accommodating space through the first line passing portion 4711 to achieve connection with the gas sensor and the refrigerant detection module 400, and connection with the display panel 500A and the refrigerant detection module 400.

[0192] Since the first line portion 4711 is sunken, when installing the refrigerant detection module 400, the first line portion 4711 can be sunk to the inside of the cabinet of the refrigerator 1, so that the signal passes through the inside of the cabinet without affecting the overall appearance of the refrigerator 1.

[0193] In some embodiments of the present application, in order to avoid collision and to consider the aesthetics of the refrigerator 1, see Fig. 9 The refrigerant detection module 400 is arranged on the top of the cabinet.

[0194] In some embodiments of the present application, the housing 480 has a top wall 481 and surrounding side walls ( Fig.13 Side walls 482 / 483 are shown), and in order to better install the refrigerant detection module 400, an installation flange 484 is formed at least at the edge of the first side wall 483 and / or the second side wall 482 corresponding to the first side wall 474 and / or the second side wall 473 of the cover shell 480 and the bottom shell 470, and the installation flange 484 has a mounting hole 4841.

[0195] For example, a first mounting flange (referred to as mounting flange 484 ) may be formed on the first side wall 483 of the cover shell 480 corresponding to the first side wall 474 of the bottom shell 470 , and a first mounting hole (referred to as mounting hole 4841 ) may be opened corresponding to the first mounting flange.

[0196] A second mounting flange (not shown) may be formed on the second side wall 482 of the cover shell 480 corresponding to the second side wall 473 of the bottom shell 470 , and a second mounting hole may be opened corresponding to the second mounting flange.

[0197] See also Fig.10 A first lug 476 is disposed on a first side wall 474 of the bottom shell 470 opposite to the first side wall 483 of the cover shell 480 , and the first lug 476 extends away from the first side wall 474 of the bottom shell 470 .

[0198] A second lug 475 is disposed on a second side wall 473 of the bottom shell 470 opposite to the second side wall 482 of the cover shell 480 . The second lug 475 extends away from the second side wall 473 of the bottom shell 470 .

[0199] When the refrigerant detection module 400 is installed at the installation port, see Fig. 9 and Fig.18 The first lug 476 and the second lug 475 are both located below the edge of the mounting opening, and the first mounting flange and the second mounting flange are both located above the edge of the mounting opening. Therefore, the edge of the sheet metal 200C at the mounting opening just extends between the first lug 476 and the first mounting flange, and between the second lug 475 and the second mounting flange.

[0200] In this way, the first screw fixes one side of the refrigerant detection module 400 through the mounting hole (i.e., mounting hole 4841) on the first mounting flange (i.e., mounting flange 484), the mounting hole on the corresponding edge of the sheet metal 200C (not shown) and the mounting hole on the first lug 476.

[0201] The second screw fixes the other side of the refrigerant detection module 400 through the mounting hole on the second mounting flange, the mounting hole on the edge of the corresponding sheet metal 200C and the mounting hole on the second lug 475, thereby fixing the refrigerant detection module 400 to the cabinet sheet metal 200C.

[0202] When inspecting the refrigerant detection module 400 , it is only necessary to remove the first screw and the second screw.

[0203] As described above, fixation can also be achieved by using the connection between the cover shell 480 and the bottom shell 470 on the side corresponding to the second lug 475, and by using screws to fix to the sheet metal 200C of the cabinet on the side corresponding to the first lug 476.

[0204] In some embodiments of the present application, see Figures 10 to 12 A first mounting hole 4841 is formed on the first mounting flange 484, and a clamping protrusion 477 located above the second lug 475 is formed on the second side wall 473 of the bottom shell 470. Fig.15 An assembly hole 4821 adapted to the locking protrusion 477 is formed on the second side wall 482 of the cover shell 480.

[0205] During assembly, see Fig.17 , the locking protrusion 477 is inserted into the assembly hole 4821, and then the screw 600 is fixed to the refrigerant detection module 400 through the mounting hole 4841 on the first mounting flange 484, the corresponding mounting hole (not shown) on the sheet metal 200C and the mounting hole 4761 on the first lug 476.

[0206] In some embodiments of the present application, see Fig.10 A first recessed portion 4742 may be formed at a corner between the first lug 476 and the first side wall 474 of the bottom shell 470 , and a second recessed portion 4731 may be formed at a corner between the second lug 475 and the second side wall 473 of the bottom shell 470 .

[0207] When installing the refrigerant detection module 400 at the installation port, refer to Fig.17 The edge of the sheet metal 200C at the corresponding installation opening extends between the first lug 476 and the first installation flange 484 and is further inserted into the first recessed portion 4742; the edge of the sheet metal 200C at the corresponding installation opening extends into the second recessed portion 4731 to achieve adaptation.

[0208] In some embodiments of the present application, see Fig.18 An enabling module 460 is added to the refrigerant detection module 400. When the refrigerant leakage detection function is not needed, the enabling switch in the enabling module 460 is enabled to turn off this function, so that the refrigerator 1 enters the refrigerant detection off mode. When the refrigerant leakage detection function is needed, the enabling switch is used to turn on this function, so that the refrigerator 1 enters the refrigerant detection on mode.

[0209] See also Fig.19 The enabling module 460 includes an enabling switch circuit, which cooperates with the enabling switch SW1 to achieve the functions described above.

[0210] The enabling switch circuit can output an enabling signal or a disabling signal to the control unit 410 according to the operation of the enabling switch SW1 .

[0211] When the enabling switch SW1 is turned on, the control unit 410 receives an enabling signal sent by the enabling switch circuit, and at this time, the refrigerator 1 enters a refrigerant detection on mode.

[0212] In the refrigerant detection on mode, the refrigerator 1 monitors the refrigerant leakage concentration using the gas sensor.

[0213] When the enable switch SW1 is turned off, the control unit 410 receives a non-enable signal sent by the enable switch circuit, and at this time, controls the refrigerator 1 to enter a refrigerant detection off mode.

[0214] In the refrigerant detection off mode, the refrigerator 1 does not use the gas sensor to monitor the refrigerant leakage concentration.

[0215] In some embodiments of the present application, see Fig.19 The enabling switch circuit includes a resistor R5, a resistor R6 and a capacitor C3.

[0216] The input port of the control unit 410 is respectively connected to one end of the resistor R5 and one end of the capacitor C3, the other end of the capacitor C3 is grounded, the other end of the resistor R5 is respectively connected to one end of the resistor R6 and one end of the enable switch SW1, one end of the resistor R6 is connected to the power supply +5VDC, and the other end of the enable switch SW1 is grounded.

[0217] When the enable switch SW1 is closed and turned on, the signal ENA received by the input port of the control unit 410 is at a low level, and the refrigerant detection on mode is entered at this time, and the refrigerant concentration can be monitored.

[0218] When the enable switch SW1 is turned on and off, the signal ENA received by the input port of the control unit 410 is at a high level, and the refrigerant detection off mode is entered at this time, and the refrigerant concentration is not monitored.

[0219] The purpose of setting the enabling module 460 is to facilitate users to use it flexibly.

[0220] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0221] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited to this. Any changes or substitutions that can be easily thought of by technicians familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A refrigerator, characterized in that: include: A cabinet having a storage room, the storage room being divided into a freezing room and a refrigerating room, and a compressor compartment for accommodating a compressor being located at a rear lower portion of the cabinet; at least one gas sensor disposed at least in the press chamber; A refrigerant detection module is provided on the cabinet, and the refrigerant detection module comprises: A power supply circuit, which receives an AC power source and provides power to electrical components in the refrigerant detection module; a control unit, which receives the refrigerant concentration detected by the gas sensor; A power control circuit is connected to the control unit and is used to disconnect the path between the AC power supply and the refrigerator power supply terminal when at least one of all refrigerant concentrations detected by each gas sensor exceeds a threshold value, and to connect the path between the AC power supply and the refrigerator power supply terminal when each of all refrigerant concentrations detected by each gas sensor is lower than the threshold value.

2. The refrigerator according to claim 1, characterized in that: The refrigerant detection module also includes: A bottom shell, which is open at the top and has a bottom wall and surrounding side walls, wherein a sunken first line-passing portion is formed on the bottom wall, and a second line-passing portion is formed on the first side wall of the bottom shell; A cover shell is arranged on the bottom shell, a mounting opening is provided on the sheet metal of the cabinet, the cover shell can be detachably mounted to the mounting opening, a storage space for accommodating various components of the refrigerant detection module is formed between the cover shell and the bottom shell, and a third wire-passing portion is formed on the side wall of the cover shell corresponding to the first side wall of the bottom shell; A power line connected to an AC power source extends into the accommodation space through the second line passing portion and the third line passing portion; The signal line of the electrical component in the refrigerator connected to the electrical component in the refrigerant detection module extends into the accommodating space through the first line passing portion.

3. The refrigerator according to claim 2, characterized in that: A first lug is disposed on the first side wall of the bottom shell, and the first lug extends away from the first side wall of the bottom shell; A second lug is disposed on a second side wall of the bottom shell opposite to the first side wall thereof, and the second lug extends away from the second side wall of the bottom shell; The cover shell has a top wall and surrounding side walls, and a mounting flange is formed at least at the side wall edge corresponding to the first side wall and / or the second side wall of the cover shell and the bottom shell, the mounting flange is vertically butted with the side wall edge corresponding to the mounting flange, and a mounting hole is opened on the mounting flange; When the refrigerant detection module is installed at the mounting opening, the first lug and the second lug are both located below the edge of the mounting opening, and the mounting flange is located above the edge of the mounting opening, and the screws are fixed through the mounting holes on the mounting flange, the mounting holes on the sheet metal edge, the mounting holes on the first lug, and / or the mounting holes on the second lug.

4. The refrigerator according to claim 2, characterized in that: A first lug is disposed on the first side wall of the bottom shell, and the first lug extends away from the first side wall of the bottom shell; A second lug is disposed on a second side wall of the bottom shell opposite to the first side wall thereof, and the second lug extends away from the second side wall of the bottom shell; The cover shell has a top wall and surrounding side walls, a first mounting flange is formed at the edge of the side wall corresponding to the first side wall of the cover shell and the bottom shell, the first mounting flange is vertically butted with the edge of the side wall corresponding to the first mounting flange, and a first mounting hole is opened on the first mounting flange; An assembly hole is formed on the second side wall of the cover shell corresponding to the second side wall of the bottom shell; A latching protrusion is formed on the second side wall of the bottom shell and is located above the second protruding ear; When the cover shell is buckled on the bottom shell, the latching protrusion extends into the assembly hole; When the refrigerant detection module is installed at the mounting opening, the first lug and the second lug are both located below the edge of the mounting opening, and the first mounting flange is located above the corresponding edge of the mounting opening, and the screws are fixed through the first mounting hole on the first mounting flange, the mounting hole on the sheet metal edge, and the mounting hole on the first lug.

5. The refrigerator according to claim 3 or 4, characterized in that: The first protruding ear and the first side wall of the bottom shell are recessed at a corner to form a first recessed portion; The corners of the second protruding ear and the second side wall of the bottom shell are recessed to form a second recessed portion; When the refrigerant detection module is installed at the installation opening, the sheet metal edge at the installation opening is inserted into the first recessed portion and the second recessed portion.

6. The refrigerator according to claim 1, characterized in that: The refrigerant detection module also includes: An enabling switch, which has an on or off action; an enabling switch circuit, which can output an enabling signal or a disabling signal to the control unit according to the action of the enabling switch, wherein when the control unit receives the enabling signal, the refrigerator enters a refrigerant detection on mode, and when the control unit receives the disabling signal, the refrigerator enters a refrigerant detection off mode; In the refrigerant detection on mode, the refrigerator uses a gas sensor to detect the refrigerant leakage concentration; In the refrigerant detection off mode, the refrigerator does not use a gas sensor to detect a refrigerant leakage concentration.

7. A refrigerator, characterized in that: include: A cabinet having a storage room, the storage room being divided into a freezing room and a refrigerating room, and a compressor compartment for accommodating a compressor being located at a rear lower portion of the cabinet; at least one gas sensor disposed at least in the press chamber; A refrigerant detection module is provided on the cabinet, and the refrigerant detection module comprises: A power supply circuit, which receives an AC power source and provides power to electrical components in the refrigerant detection module; a control unit, which receives the refrigerant concentration detected by the gas sensor; A power control circuit connected to the control unit, configured to disconnect the path between the AC power supply and the refrigerator power supply terminal when at least one of all refrigerant concentrations detected by the gas sensors exceeds a threshold value, and connect the path between the AC power supply and the refrigerator power supply terminal when each of all refrigerant concentrations detected by the gas sensors is lower than the threshold value; The reminder unit is connected to the control unit and is used to output a reminder when at least one of all refrigerant concentrations detected by the gas sensors exceeds a threshold value.

8. The refrigerator according to claim 7, characterized in that: The reminder unit is a sound alarm circuit, a light alarm circuit or a sound and light alarm circuit; When the reminder unit is a sound alarm circuit, when at least one of all refrigerant concentrations detected by each gas sensor exceeds a threshold value, a sound alarm reminder is output; When the reminder unit is a light alarm circuit, when at least one of all refrigerant concentrations detected by each gas sensor exceeds a threshold value, a sound alarm reminder is output; When the reminder unit is an audible and visual alarm circuit, when at least one of all refrigerant concentrations detected by the gas sensors exceeds a threshold, an audible and visual alarm reminder is output.

9. The refrigerator according to claim 7, characterized in that: The reminder unit comprises: A display panel power supply control module connected to the control unit, which controls the passage between the power supply and the power supply end of the display panel of the refrigerator to be turned on when at least one of all refrigerant concentrations detected by the gas sensors exceeds a threshold; The control unit is connected to the display panel and is used for displaying a reminder when the display panel is powered on.

10. The refrigerator according to claim 9, characterized in that: The display panel is provided with a WiFi module which is connected to the cloud for remote transmission of the reminder.

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