Alarm device and refrigerator

Abstract

The utility model discloses an alarm device and a refrigerator. The alarm device comprises a controller, a refrigerating system, a temperature sensor, a sampling circuit module and an alarm circuit module, the refrigerating system comprises a freezing evaporator and a refrigerant circulating pipeline structure; the temperature sensor is arranged on the surface of the freezing evaporator, and the signal output end of the temperature sensor is connected with the controller; the output end of the sampling circuit module is connected with the controller, and the sampling circuit module can collect the output current of the refrigerating system; and the signal input end of the alarm circuit module is connected with the controller. According to the utility model, an alarm is given when the refrigerant of the system is too little, potential safety hazards and property loss caused by leakage of the refrigerant are prevented, a user is reminded of timely repair, the risk of deterioration of food materials of the user is reduced, the refrigeration system is protected, and the service life of refrigeration components of the system is prolonged.

Description

Technical Field

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

[0002] Over time, refrigerators inevitably leak refrigerant due to aging and corrosion of pipes. This can lead to the system failing to generate alarms when refrigerant is low. This can pose a safety risk to users, as refrigerator refrigerants are generally flammable and explosive. This can easily ignite or explode if the user is unaware of a refrigerant leak and an open flame approaches. Furthermore, it can affect the lifespan of the system's compressor and refrigeration components, reduce user experience, and potentially cause food to spoil. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, one purpose of the present invention is to provide an alarm device and a refrigerator that improves user safety during use, protects components of the refrigeration system, and improves user experience.

[0004] In a first aspect, the present invention provides an alarm device comprising:

[0005] Controller;

[0006] Refrigeration system, including refrigeration evaporator and refrigerant circulation pipeline structure;

[0007] A temperature sensor is provided on the surface of the freezing evaporator, and a signal output end of the temperature sensor is connected to the controller;

[0008] a sampling circuit module, wherein an output end of the sampling circuit module is connected to the controller, and the sampling circuit module is capable of collecting the output current of the refrigeration system;

[0009] An alarm circuit module, wherein a signal input end of the alarm circuit module is connected to the controller.

[0010] Preferably, the sampling circuit module is integrated into the controller.

[0011] Preferably, the refrigeration system further comprises a compressor, and the return air port of the compressor is connected to the outlet of the refrigeration evaporator;

[0012] The refrigerant circulation pipeline structure includes a left condenser, an anti-dew pipe, a right condenser and a capillary tube. The exhaust port of the compressor is connected to the inlet of the left condenser, the outlet of the left condenser is connected to the inlet of the anti-dew pipe, the outlet of the anti-dew pipe is connected to the inlet of the right condenser, the outlet of the right condenser is connected to the inlet of the capillary tube, and the outlet of the capillary tube is connected to the inlet of the refrigeration evaporator.

[0013] Preferably, the refrigeration system further includes a drying filter arranged between the outlet of the right condenser and the inlet of the capillary tube.

[0014] Preferably, the temperature sensor is arranged between the inlet and the outlet of the freezing evaporator.

[0015] Preferably, the temperature sensor is connected to the refrigeration evaporator by welding a copper sleeve.

[0016] Preferably, a display module is further included, and a signal input end of the display module is connected to the controller.

[0017] Preferably, the alarm circuit module is integrated into the display module.

[0018] In a second aspect, the present invention provides a refrigerator comprising any one of the above-mentioned alarm devices.

[0019] Preferably, the refrigerator is provided with an air duct at the position of the freezing evaporator, and an air door is installed at the entrance of the air duct.

[0020] The beneficial effects of this utility model include: a temperature sensor monitors the surface temperature of the freezer evaporator, while a sampling circuit module monitors the refrigeration system and feeds back current values ​​to the controller. When both are at abnormal values, an alarm is triggered, alerting the user to a refrigerant leak in the refrigerator. The alarm device provided by this embodiment of the utility model can promptly sound an alarm in the event of a refrigerant leak, allowing the user to promptly move the refrigerator to a well-ventilated area away from open flames, improving safety. It also protects the components of the refrigeration system, prevents food spoilage, and enhances user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In the attached figure:

[0022] Figure 1 This is a structural diagram of an alarm device proposed by the utility model;

[0023] Figure 2 This is a control flow chart of the alarm device proposed in this utility model.

[0024] In the figure: 1- compressor, 2- left condenser, 3- anti-dew pipe, 4- right condenser, 5- drying filter, 6- capillary tube, 7- refrigeration evaporator, 8- temperature sensor, 9- fan, 10- damper. DETAILED DESCRIPTION

[0025] Reference Figure 1 and Figure 2 , an alarm device of the present application may include:

[0026] Controller, refrigeration system, temperature sensor 8, sampling circuit module and alarm circuit module.

[0027] The refrigeration system includes a freezing evaporator 7 and a refrigerant circulation pipeline structure that circulates refrigerant to remove external heat.

[0028] The temperature sensor 8 in this embodiment provides a temperature monitoring signal to the controller, converting the temperature information at the refrigeration evaporator 7 into an electrical signal, which is then transmitted to the controller so that the controller can perform identification operations;

[0029] Obviously, based on the above, this embodiment can realize accurate monitoring of the temperature at the refrigeration evaporator 7 and can provide real-time feedback on abnormal temperature values ​​at the refrigeration evaporator 7 .

[0030] The sampling circuit module in this embodiment provides the controller with a monitoring signal of the output current value, which is then fed back to the controller so that the controller can perform calculations;

[0031] Obviously, based on the above, this embodiment can realize accurate monitoring of the output current value and provide real-time feedback on abnormal current values ​​of the controller.

[0032] The alarm circuit module in this embodiment is controlled by the controller. When the temperature value at the refrigeration evaporator 7 is abnormal and the current value output by the controller of the refrigeration system is abnormal, the alarm circuit module receives a signal from the controller and issues an alarm.

[0033] Obviously, based on the above, this embodiment can realize real-time alarming of abnormal temperature values ​​at the freezing evaporator 7 and abnormal current values ​​of the refrigeration system, and can react to the alarm information accurately and quickly.

[0034] The sampling circuit module can be an independent module electrically connected to the controller, which obtains the output current value of the refrigeration system and transmits it to the controller. The sampling circuit module can also be directly integrated into the main board of the controller to simplify the structure.

[0035] The display module in this embodiment is controlled by the controller and displays the working status and alarm information of the refrigeration system in real time, so that the user can understand the working status of the refrigeration system in real time.

[0036] The alarm circuit module in this embodiment is integrated into the display module, which simplifies the structure and makes it easier for users to view alarm information.

[0037] In this embodiment, refer to Figure 1The refrigeration system may include a compressor 1, a left condenser 2, an anti-dew pipe 3, a right condenser 4, a drying filter 5, a capillary tube 6 and a freezing evaporator 7. The exhaust port of the compressor 1 is connected to the inlet copper tube of the left condenser 2, the outlet of the left condenser 2 is connected to the inlet copper tube of the anti-dew pipe 3, the outlet of the anti-dew pipe 3 is connected to the inlet copper tube of the right condenser 4, the outlet of the right condenser 4 is connected to the inlet copper tube of the drying filter 5, the outlet of the drying filter 5 is connected to the inlet copper tube of the capillary tube 6, the outlet of the capillary tube 6 is connected to the inlet copper tube of the freezing evaporator 7, and the outlet of the freezing evaporator 7 is connected to the return air inlet copper tube of the compressor 1.

[0038] In this embodiment, in order to provide more accurate feedback on the temperature of the freezing evaporator 7, the temperature sensor 8 can be arranged in the middle of the freezing evaporator 7, and the temperature sensor 8 can be connected to the freezing evaporator 7 by welding a copper sleeve.

[0039] As another embodiment of the present application, this embodiment provides a refrigerator comprising the device in any of the above embodiments.

[0040] In an optional embodiment, the refrigerator is provided with an air duct at the position of the freezing evaporator 7, and a damper 10 is installed at the entrance of the air duct to control the air entering the corresponding channel of the internal cavity of the refrigerator; the damper 10 is provided with a freezing channel switch, a temperature change channel switch and a refrigeration channel switch.

[0041] In this embodiment, the air drawn out from the freezing evaporator 7 is selectively allowed to enter the freezing, temperature-changing or refrigerating air duct through the air door 10, thereby achieving partial temperature control of the refrigerator.

[0042] In an optional embodiment, a fan 9 is installed at the entrance of the air duct;

[0043] In this embodiment, the fan 9 is used to increase the flow rate of the gas.

[0044] In order to more clearly illustrate the scheme and effect of this implementation, the following examples are provided with reference to the accompanying drawings:

[0045] like Figure 1 The exhaust port of compressor 1 is connected to the inlet copper tube of left condenser 2, the outlet of left condenser 2 is connected to the inlet copper tube of anti-dew pipe 3, the outlet of anti-dew pipe 3 is connected to the inlet copper tube of right condenser 4, the outlet of right condenser 4 is connected to the inlet copper tube of drying filter 5, the outlet of drying filter 5 is connected to the inlet copper tube of capillary tube 6, the outlet of capillary tube 6 is connected to the inlet copper tube of freezing evaporator 7, the outlet of freezing evaporator 7 is connected to the return air port copper tube of compressor 1; the temperature sensor 8 is in the middle of the freezing evaporator 7 pipeline and is indirectly connected by copper sleeve welding to mainly monitor the temperature in the middle of the evaporator. The signal line of temperature sensor 8 is connected to the main board of the controller. At the same time, the main board samples the current through a resistor to monitor the operating current of the machine at all times;

[0046] When the system refrigerant leaks too little during the use of the refrigerator, the temperature value monitored by the temperature sensor 8 is higher than the set value, and the controller controls the operating current of the refrigeration system to be less than the current preset by the controller. At this time, the controller will make a comprehensive judgment and alarm, and the refrigerator will stop running immediately. At the same time, the controller will send an alarm signal to the display interface to report the fault, reminding the user to report the problem in time and take corresponding protective measures.

Claims

1. An alarm device, characterized in that: include: Controller; A refrigeration system comprising a refrigeration evaporator (7) and a refrigerant circulation pipeline structure; A temperature sensor (8), the temperature sensor (8) being arranged on the surface of the freezing evaporator (7), and a signal output end of the temperature sensor (8) being connected to the controller; a sampling circuit module, wherein an output end of the sampling circuit module is connected to the controller, and the sampling circuit module is capable of collecting the output current of the refrigeration system; An alarm circuit module, wherein a signal input end of the alarm circuit module is connected to the controller.

2. The alarm device according to claim 1, characterized in that: The sampling circuit module is integrated into the controller.

3. The alarm device according to claim 1, characterized in that: The refrigeration system further comprises a compressor (1), wherein the return air port of the compressor (1) is connected to the outlet of the refrigeration evaporator; The refrigerant circulation pipeline structure includes a left condenser (2), an anti-dew pipe (3), a right condenser (4) and a capillary tube (6); the exhaust port of the compressor (1) is connected to the inlet of the left condenser (2); the outlet of the left condenser (2) is connected to the inlet of the anti-dew pipe (3); the outlet of the anti-dew pipe (3) is connected to the inlet of the right condenser (4); the outlet of the right condenser (4) is connected to the inlet of the capillary tube (6); and the outlet of the capillary tube (6) is connected to the inlet of the refrigeration evaporator (7).

4. The alarm device according to claim 3, characterized in that: The refrigeration system further includes a drying filter (5) arranged between the outlet of the right condenser (4) and the inlet of the capillary tube (6).

5. The alarm device according to claim 1, characterized in that: The temperature sensor (8) is arranged between the inlet and the outlet of the freezing evaporator (7).

6. An alarm device according to claim 5, characterized in that: The temperature sensor (8) is connected to the freezing evaporator (7) by copper sleeve welding.

7. The alarm device according to claim 1, characterized in that: It also includes a display module, and a signal input end of the display module is connected to the controller.

8. The alarm device according to claim 7, characterized in that: The alarm circuit module is integrated into the display module.

9. A refrigerator, characterized in that: The invention comprises the alarm device according to any one of claims 1 to 8.

10. The refrigerator according to claim 9, wherein: The refrigerator is provided with an air duct at the position of the freezing evaporator (7), and an air door (10) is installed at the entrance of the air duct.

Images