Refrigerator

Abstract

The utility model relates to a refrigerator. The refrigerator comprises a refrigerator shell, an evaporation device, a cold air output assembly and a heating assembly, the output end of the cold air output assembly faces the refrigerator refrigerating chamber, and the input end of the cold air output assembly faces the evaporation device. The heating assembly comprises a heating piece and a heating driving device used for driving the heating piece to operate. The heating piece is arranged on the side, close to the evaporation device, of the cold air output assembly. The control module is used for detecting the operation state of the cold air output assembly and outputting a control signal corresponding to the operation state of the cold air output assembly to the heating driving device so that the heating driving device can control operation of the heating piece based on the control signal. According to the technical scheme, when it is detected that the operation state of the cold air output assembly is abnormal, the heating piece is controlled to be in the working state, the heating piece can transmit heat to the evaporation device to melt frost on the evaporation device, and therefore normal operation of the cold air output assembly can be ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of refrigerator structure, in particular to a refrigerator. BACKGROUND

[0002] The refrigerator usually has an evaporator in the refrigeration chamber, which is used to provide cold air, and the evaporator can be used in cooperation with a fan to blow the cold air into the refrigeration chamber, so as to preserve the food in the refrigeration chamber. With the long-term use of the refrigerator, a large amount of ice will exist on the evaporator. However, in the prior art, the ice on the evaporator is usually naturally defrosted, but the above defrosting process may not completely defrost the ice, and long-term circulation may cause the ice on the evaporator to become thicker and thicker, which may block the fan blades and cause the fan to malfunction, thereby reducing the refrigeration efficiency in the refrigeration chamber. CONTENT OF THE UTILITY MODEL

[0003] In order to solve the problems in the prior art, the present application provides a technical scheme of a refrigerator, that is, the present application sets a heating element on one side of the cold air output assembly close to the evaporating device, and sets a heating driving device for driving the heating element to operate, so that the control module outputs a control signal corresponding to the operating state of the cold air output assembly to the heating driving device, and the heating driving device controls the operation of the heating element based on the control signal. When the control module detects that the operating state of the cold air output assembly is in an abnormal condition, the heating element can be controlled to be in a working state, and the heating element can transfer heat to the evaporating device to melt the ice on the evaporating device, thereby ensuring the normal operation of the cold air output assembly.

[0004] The present application provides a refrigerator, which comprises a refrigerator shell, an evaporating device, a cold air output assembly and a heating assembly arranged in the refrigerator shell.

[0005] The output end of the cold air output assembly is arranged towards the refrigeration chamber of the refrigerator, and the input end of the cold air output assembly is arranged towards the evaporating device, and the evaporating device is arranged in a spaced manner with the cold air output assembly.

[0006] The heating assembly comprises a heating element and a heating driving device for driving the heating element to operate, and the heating element is arranged on one side of the cold air output assembly close to the evaporating device, and the control end of the heating element is connected with a control module through the heating driving device.

[0007] The control module is used for detecting the operating state of the cold air output assembly and outputting a control signal corresponding to the operating state of the cold air output assembly to the heating driving device, so that the heating driving device controls the operation of the heating element based on the control signal.

[0008] Further, the heating driving device comprises a control signal receiving module and a heating driving module.

[0009] The input end of the control signal receiving module is connected with the control module, the output end of the control signal receiving module is connected with the input end of the heating driving module, and the output end of the heating driving module is connected with the heating element.

[0010] The control signal receiving module is used for receiving the control signal output by the control module and outputting a driving signal to the heating driving module based on the control signal, so that the heating driving module controls the operation of the heating element based on the driving signal.

[0011] Further, the control signal receiving module comprises a current limiting resistor, a capacitor discharge resistor and a field effect transistor.

[0012] One end of the current limiting resistor is connected with the control module, the other end of the current limiting resistor is connected with the gate of the field effect transistor and one end of the capacitor discharge resistor respectively, the drain of the field effect transistor is connected with the driving input end of the heating driving module, and the source of the field effect transistor and the other end of the capacitor discharge resistor are both grounded.

[0013] Further, the heating driving module comprises a power supply unit and a heating driving unit.

[0014] The output end of the power supply unit is connected with the power supply end of the heating driving unit, the driving input end of the heating driving unit is connected with the output end of the control signal receiving module, and the driving output end of the heating driving unit is connected with the heating element.

[0015] Further, the heating driving device further comprises a voltage limiting module, the first end of the voltage limiting module is connected to the circuit between the control signal receiving module and the heating driving module, the second end of the voltage limiting module is used to be connected with the power supply unit, the third end of the voltage limiting module is grounded, and the voltage limiting module is used to limit the voltage value on the circuit between the control signal receiving module and the heating driving module.

[0016] Further, the voltage limiting module comprises a clamping diode, the voltage limiting end of the clamping diode is connected to the circuit between the control signal receiving module and the heating driving module, the first reference potential end of the clamping diode is connected with the power supply unit, and the second reference potential end of the clamping diode is grounded.

[0017] Further, the connection mode between the heating element and the cold air output assembly is bonding, welding, clamping or hot melting connection.

[0018] Further, the heating element is a heating wire, a heating tube or a heating plate.

[0019] Further, the output voltage of the power supply unit is 10v-15v.

[0020] Further, the cold air output assembly is a refrigeration fan.

[0021] The application has the following beneficial effects:

[0022] The application sets the heating element on the side of the cold air output assembly close to the evaporating device, and sets the heating driving device for driving the heating element to operate, so that the control module outputs the control signal corresponding to the operating state of the cold air output assembly to the heating driving device, and the heating driving device controls the operation of the heating element based on the control signal. When the control module detects that the operating state of the cold air output assembly is in an abnormal condition, the heating element can be controlled to be in a working state, and then the heating element can transfer heat to the evaporating device to melt the ice and frost on the evaporating device, so as to ensure the normal operation of the cold air output assembly. BRIEF DESCRIPTION OF DRAWINGS

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

[0024] Figure 1 A structure schematic diagram of a refrigerator provided by the embodiment of the application;

[0025] Figure 2 A circuit diagram corresponding to the heating driving device provided by the embodiment of the application;

[0026] In the drawings, the reference signs correspond to: 1-evaporating device; 2-cold air output assembly; 3-heating assembly; 31-heating element; 32-heating driving device; 321-control signal receiving module; 3211-current limiting resistor; 3212-capacitive discharge resistor; 3213-field effect transistor; 322-heating driving module; 3221-power supply unit; 3222-heating driving unit; 323-voltage limiting module; 3231-clamp diode; 4-control module; 5-refrigerator shell. DETAILED DESCRIPTION

[0027] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those of ordinary skill in the art without creative effort should fall into the scope of the present application.

[0028] It should be noted that, in the present application, unless specifically defined and limited, the terms such as "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or can communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0029] In the following, the embodiments are described with reference to the drawings, and the drawings do not limit the disclosure recorded in the claims in any way.

[0030] Please refer to Figure 1 and Figure 2 , the following will be combined with Figure 1 and Figure 2 to make a detailed description of the refrigerator provided by the embodiments of the present application.

[0031] The refrigerator provided by the embodiments of the present application is shown in Figure 1 and Figure 2 , specifically, the refrigerator comprises a refrigerator shell 5, an evaporating device 1, a cold air output assembly 2 and a heating assembly 3 arranged in the refrigerator shell 5.

[0032] The output end of the cold air output assembly 2 is arranged towards the refrigerator fresh-keeping chamber, the input end of the cold air output assembly 2 is arranged towards the evaporating device 1, and the evaporating device 1 is arranged spaced apart from the cold air output assembly 2; the heating assembly 3 comprises a heating element 31 and a heating driving device 32 for driving the heating element 31 to operate, the heating element 31 is arranged on the side of the cold air output assembly 2 close to the evaporating device 1, and the control end of the heating element 31 is connected with the control module 4 through the heating driving device 32; the control module 4 is used for detecting the operating state of the cold air output assembly 2, and outputting a control signal corresponding to the operating state of the cold air output assembly 2 to the heating driving device 32, so that the heating driving device 32 controls the operation of the heating element 31 based on the control signal.

[0033] In the embodiment of the present application, the heating member 31 is arranged on the side of the cold air output assembly 2 close to the evaporating device 1, and the heating driving device 32 is arranged for driving the heating member 31 to operate. The control module 4 outputs a control signal corresponding to the operating state of the cold air output assembly 2 to the heating driving device 32. The heating driving device 32 controls the operation of the heating member 31 based on the control signal. Specifically, when the control module 4 detects that the operating state of the cold air output assembly 2 is in an abnormal condition, the heating member 31 can be controlled to be in a working state. Then, the heating member 31 can transfer heat to the evaporating device 1 to melt the frost on the evaporating device 1, thereby ensuring the normal operation of the cold air output assembly 2.

[0034] In a specific embodiment, the control signal includes a first control signal and a second control signal. The first control signal represents that the cold air output assembly 2 is in a normal operating state, and the second control signal represents that the cold air output assembly 2 is in an abnormal operating state. In some embodiments, when the control module 4 detects that the cold air output assembly 2 is in an abnormal operating state, it indicates that the frost on the evaporating device 1 is too much to block the operation of the cold air output assembly 2. At this time, the control module 4 can output the second control signal to the heating driving device 32, so that the heating driving device 32 controls the heating member 31 to operate based on the second control signal and generates heat. The heat generated by the heating member 31 can be transmitted to the evaporating device 1, thereby melting the frost on the evaporating device 1, and ensuring the normal operation of the cold air output assembly 2.

[0035] Further, when the control module 4 detects that the cold air output assembly 2 is in a normal operating state, it indicates that the frost on the evaporating device 1 is less. At this time, it is not necessary to start the heating member 31 to generate heat. Therefore, the control module 4 can output the first control signal to the heating driving device 32, and the heating driving device 32 controls the heating member 31 to be in a stop operating state based on the first control signal.

[0036] It should be noted that the control module 4 can control the heating member 31 to operate for a preset first time period, and then delay for a preset second time period before starting the cold air output assembly 2 to be in an operating state. Therefore, it can be avoided that the cold air output assembly 2 blows hot air into the refrigerating chamber of the refrigerator due to the long operation time of the heating member 31, thereby ensuring the normal refrigeration function of the refrigerator. The frost on the evaporating device 1 can be completely melted after the heating member 31 operates for a preset first time period. The preset first time period can be determined according to the results of multiple experiments, which will not be described in detail here. The preset second time period can be 1 minute, 2 minutes or 3 minutes, etc. Preferably, the preset second time period is 2 minutes.

[0037] In a specific embodiment, the evaporating device 1 can be an evaporator for evaporating refrigerant by absorbing heat in the refrigerator compartment, thereby reducing the temperature in the refrigerator compartment, the cold air output assembly 2 can be a refrigerator fan, and the heating element 31 can be a heating wire, a heating tube, a heating plate or the like. Preferably, the heating element 31 is a heating wire, and the connection between the heating element 31 and the cold air output assembly 2 is preferably adhesive, welding, clamping or hot melt connection.

[0038] In an optional embodiment, as shown in Figure 2 The heating driving device 32 includes a control signal receiving module 321 and a heating driving module 322. The input end of the control signal receiving module 321 is connected with the control module 4, the output end of the control signal receiving module 321 is connected with the input end of the heating driving module 322, and the output end of the heating driving module 322 is connected with the heating element 31. The control signal receiving module 321 is configured to receive the control signal output by the control module 4 and output a driving signal to the heating driving module 322 based on the control signal, so that the heating driving module 322 controls the operation of the heating element 31 based on the driving signal.

[0039] In the embodiments of the present application, the driving signal includes a first driving signal and a second driving signal. The first driving signal indicates that the cold air output assembly 2 is in a normal operating state, and the second driving signal indicates that the cold air output assembly 2 is in an abnormal operating state. In some embodiments, when the control signal receiving module 321 receives the first control signal output by the control module 4, the first driving signal can be output to the heating driving module 322, and then the heating driving module 322 can control the heating element 31 to stop operating based on the first driving signal. Further, when the control signal receiving module 321 receives the second control signal output by the control module 4, the second driving signal can be output to the heating driving module 322, and then the heating driving module 322 can control the heating element 31 to operate based on the second driving signal. At this time, the heating element 31 generates heat, and the heat generated by the heating element 31 can be transmitted to the evaporating device 1, thereby melting the ice on the evaporating device 1, so as to ensure the normal operation of the cold air output assembly 2, thereby realizing accurate control of the operating state of the heating element 31.

[0040] In a specific embodiment, as shown in Figure 2As shown, the control signal receiving module 321 comprises a current-limiting resistor 3211, a capacitor discharge resistor 3212 and a field effect transistor 3213; wherein one end of the current-limiting resistor 3211 is connected with the control module 4, the other end of the current-limiting resistor 3211 is connected with the gate of the field effect transistor 3213 and one end of the capacitor discharge resistor 3212 respectively, the drain of the field effect transistor 3213 is connected with the driving input end of the heating driving module 322, and the source of the field effect transistor 3213 and the other end of the capacitor discharge resistor 3212 are both grounded.

[0041] Specifically, the first control signal is a low-level control signal, and the second control signal is a high-level control signal, and then when the control signal receiving module 321 receives the high-level control signal, since the gate of the field effect transistor 3213 is connected with the control module 4 through the current-limiting resistor 3211 and the source of the field effect transistor 3213 is grounded, the field effect transistor 3213 is in the on state, so that the control module 4 can drive the heating piece 31 to operate through the heating driving device 32, and further, when the control signal receiving module 321 receives the low-level control signal, since the gate of the field effect transistor 3213 is connected with the control module 4 through the current-limiting resistor 3211 and the source of the field effect transistor 3213 is grounded, the field effect transistor 3213 is in the off state, so that the control module 4 cannot drive the heating piece 31 to operate through the heating driving device 32.

[0042] In actual application, the resistance value of the current-limiting resistor 3211 can be 1KΩ, and the resistance value of the capacitor discharge resistor 3212 can be 10KΩ, which is mainly used for discharging the parasitic capacitance of the field effect transistor 3213.

[0043] In a specific embodiment, as shown in the figure, Figure 2 The heating driving module 322 comprises a power supply unit 3221 and a heating driving unit 3222; wherein the output end of the power supply unit 3221 is connected with the power supply end of the heating driving unit 3222, the driving input end of the heating driving unit 3222 is connected with the output end of the control signal receiving module 321, and the driving output end of the heating driving unit 3222 is connected with the heating piece 31.

[0044] Specifically, the power supply unit 3221 is used for supplying power to the heating driving unit 3222, and in actual application, the output voltage of the power supply unit 3221 is 10v-15v, preferably, the output voltage of the power supply unit 3221 is 12v, and the heating driving unit 3222 can be a driving chip.

[0045] In an optional embodiment, as shown in the figure, Figure 2As shown, the heating driving device 32 further comprises a voltage limiting module 323, a first end of the voltage limiting module 323 is connected to the circuit between the control signal receiving module 321 and the heating driving module 322, a second end of the voltage limiting module 323 is used to be connected with the power supply unit 3221, and a third end of the voltage limiting module 323 is grounded, and the voltage limiting module 323 is used to limit the voltage value on the circuit between the control signal receiving module 321 and the heating driving module 322.

[0046] Specifically, by arranging the voltage limiting module 323, the voltage value on the circuit between the control signal receiving module 321 and the heating driving module 322 is limited by the voltage limiting module 323, so that the normal operation of the circuit can be ensured.

[0047] In one specific embodiment, as shown in the accompanying drawings, Figure 2 As shown, the voltage limiting module 323 comprises a clamping diode 3231, a voltage limiting end of the clamping diode 3231 is connected to the circuit between the control signal receiving module 321 and the heating driving module 322, a first reference potential end of the clamping diode 3231 is connected with the power supply unit 3221, and a second reference potential end of the clamping diode 3231 is grounded.

[0048] In the embodiments of the present application, by arranging the clamping diode 3231, the voltage value on the circuit between the control signal receiving module 321 and the heating driving module 322 is clamped by the clamping diode 3231.

[0049] In actual application, the clamping diode 3231 can maintain the voltage value on the circuit between the control signal receiving module 321 and the heating driving module 322 within the range of 0-12V.

[0050] The above-mentioned embodiments of the present application have the following beneficial effects:

[0051] The present application sets the heating element on the side of the cold air output assembly close to the evaporative device, and sets the heating driving device for driving the heating element to operate, so that the control module outputs the control signal corresponding to the operating state of the cold air output assembly to the heating driving device, and the heating driving device controls the operation of the heating element based on the control signal. When the control module detects that the operating state of the cold air output assembly is in an abnormal condition, the heating element can be controlled to be in a working state, and then the heating element can transfer heat to the evaporative device to melt the ice and frost on the evaporative device, so that the normal operation of the cold air output assembly can be ensured.

[0052] The structure shown in the embodiment only relates to part of the structure of the scheme of the present application, and does not constitute a limitation on the device to which the scheme of the present application is applied. The specific device can include more or fewer components than shown, or combine certain components, or have a different arrangement of components. It should be understood that the method, device, etc. disclosed in the embodiment can be implemented in other ways.

[0053] The above merely illustrates the specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A refrigerator characterized by comprising: The refrigerator comprises a refrigerator shell (5), an evaporating device (1), a cold air output assembly (2) and a heating assembly (3) arranged in the refrigerator shell (5); The output end of the cold air output assembly (2) is arranged towards a refrigerator cold storage room, and the input end of the cold air output assembly (2) is arranged towards the evaporating device (1), and the evaporating device (1) is arranged in a spaced manner with the cold air output assembly (2); The heating assembly (3) comprises a heating element (31) and a heating driving device (32) for driving the heating element (31) to operate, the heating element (31) is arranged on the side of the cold air output assembly (2) close to the evaporating device (1), and the control end of the heating element (31) is connected with a control module (4) through the heating driving device (32); The control module (4) is used for detecting the operating state of the cold air output assembly (2) and outputting a control signal corresponding to the operating state of the cold air output assembly (2) to the heating driving device (32), so that the heating driving device (32) controls the operation of the heating element (31) based on the control signal.

2. The refrigerator according to claim 1, characterized in that, The heating driving device (32) comprises a control signal receiving module (321) and a heating driving module (322); The input end of the control signal receiving module (321) is connected with the control module (4), the output end of the control signal receiving module (321) is connected with the input end of the heating driving module (322), and the output end of the heating driving module (322) is connected with the heating element (31); The control signal receiving module (321) is used for receiving the control signal output by the control module (4) and outputting a driving signal to the heating driving module (322) based on the control signal, so that the heating driving module (322) controls the operation of the heating element (31) based on the driving signal.

3. The refrigerator according to claim 2, characterized in that, The control signal receiving module (321) comprises a current limiting resistor (3211), a capacitor discharge resistor (3212) and a field effect transistor (3213); One end of the current limiting resistor (3211) is connected with the control module (4), the other end of the current limiting resistor (3211) is respectively connected with the gate of the field effect transistor (3213) and one end of the capacitor discharge resistor (3212), the drain of the field effect transistor (3213) is connected with the driving input end of the heating driving module (322), and the source of the field effect transistor (3213) and the other end of the capacitor discharge resistor (3212) are both grounded.

4. The refrigerator according to claim 2, characterized in that, The heating driving module (322) comprises a power supply unit (3221) and a heating driving unit (3222); The output end of the power supply unit (3221) is connected with the power supply end of the heating driving unit (3222), the driving input end of the heating driving unit (3222) is connected with the output end of the control signal receiving module (321), and the driving output end of the heating driving unit (3222) is connected with the heating element (31).

5. The refrigerator according to claim 2, characterized in that, The heating driving device (32) further comprises a voltage limiting module (323), a first end of the voltage limiting module (323) is connected to a circuit between the control signal receiving module (321) and the heating driving module (322), a second end of the voltage limiting module (323) is used to be connected with a power supply unit (3221), a third end of the voltage limiting module (323) is grounded, and the voltage limiting module (323) is used to limit the voltage value on the circuit between the control signal receiving module (321) and the heating driving module (322).

6. The refrigerator according to claim 5, characterized in that, The voltage limiting module (323) comprises a clamping diode (3231), a voltage limiting end of the clamping diode (3231) is connected to the circuit between the control signal receiving module (321) and the heating driving module (322), a first reference potential end of the clamping diode (3231) is connected with the power supply unit (3221), and a second reference potential end of the clamping diode (3231) is grounded.

7. The refrigerator according to claim 1, characterized in that, The connection mode between the heating element (31) and the cold air output assembly (2) is bonding, welding, clamping or hot melting connection.

8. The refrigerator according to claim 1, characterized in that, The heating element (31) is a heating wire, a heating pipe or a heating plate.

9. The refrigerator according to claim 4, characterized in that, The output voltage of the power supply unit (3221) is 10v-15v.

10. The refrigerator according to claim 1, characterized in that, The cold air output assembly (2) is a refrigerated fan.

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