Dustproof device and refrigerator

Abstract

The utility model discloses a dustproof device and a refrigerator, and relates to the technical field of dust prevention. The dust-proof structure comprises an embedded part, a dust-proof seat and a filter assembly, and the embedded part is matched with a lower front beam of the refrigerator to form a containing space. And the dustproof seat is mounted in the accommodating space and is detachably connected with the embedded part. The filter assembly is connected with the dustproof base, and the filter assembly vertically extends out of the containing space and covers an air guide hole formed in the lower front beam. Therefore, the lower front beam of the refrigerator can be utilized, the dustproof device is arranged to filter air entering the refrigerator, a heat dissipation air channel is prevented from being blocked, and the heat exchange efficiency of the condenser is improved.

Description

Technical Field

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

[0002] With the improvement of people's living standards, the requirements for the performance and aesthetics of household appliances are getting higher and higher. For example, refrigerators are gradually developing towards being embedded. That is, the refrigerator is embedded in the cabinet, so as to improve the aesthetics by integrating the refrigerator and the cabinet visually.

[0003] Since the heat dissipation gaps between the top, back, and two sides of the embedded refrigerator and the cabinet are very small. It generally uses the bottom of the refrigerator for heat dissipation. For example, an external condenser is used instead of an internal condenser. Taking the condensation fan as the boundary, the refrigerator compressor compartment is separated into two chambers, and forced convection heat transfer is utilized by the condensation fan to form a circulating heat dissipation system with air flowing out from one side and flowing in from the other side at the bottom.

[0004] However, during the long-term operation of the heat dissipation system, dust in the air will accumulate on the condensation fins of the condenser. If not cleaned for a long time, dirt will be generated and the air duct will be blocked, resulting in a decrease in heat transfer efficiency. Summary of the Utility Model

[0005] In view of the above problems, the present utility model is proposed to provide a dust prevention device and a refrigerator that overcome the above problems or at least partially solve the above problems.

[0006] Based on the first aspect of the present utility model, a dust prevention device is provided, and the dust prevention device includes:

[0007] A pre-embedded part, which cooperates with the lower front beam of the refrigerator to form an accommodating space;

[0008] A dust prevention seat, which is installed in the accommodating space and is detachably connected to the pre-embedded part;

[0009] A filtering component, which is connected to the dust prevention seat. Among them, the filtering component extends vertically outside the accommodating space and covers the air guiding holes opened on the lower front beam.

[0010] An optional content of the utility model, the dust prevention seat is an elastic part and is snap-connected to the pre-embedded part.

[0011] An optional content of the utility model, the horizontal distance between the pre-embedded part and the lower front beam gradually decreases from the middle area of the pre-embedded part to the top of the pre-embedded part, so as to form a limiting surface for limiting the dust prevention seat at the top of the pre-embedded part.

[0012] An optional utility model content, the horizontal distance between the embedded part and the lower front beam gradually decreases from the bottom end to the top of the embedded part to form a limiting surface for limiting the dust-proof seat at the top of the embedded part.

[0013] An optional utility model content, an assembly inclined surface is provided on the end surface of the dust-proof seat close to the embedded part, and the assembly inclined surface is in shape fit with the limiting surface.

[0014] An optional utility model content, an assembly notch communicating with the accommodating space is also formed on the dust-proof seat.

[0015] An optional utility model content, the filtering component includes a filtering framework and a filtering net arranged on the filtering framework. Among them, the filtering framework is an elastic part and is fixed to the dust-proof seat.

[0016] An optional utility model content, the dust-proof device further includes:

[0017] A connecting spring, the connecting spring is arranged between the dust-proof seat and the filtering framework;

[0018] A length sensor, the length sensor is arranged on the dust-proof seat and is electrically connected to the controller of the refrigerator to detect the spring length of the connecting spring;

[0019] A vibration motor, the vibration motor is installed on the filtering framework and is electrically connected to the controller to drive the filtering net to vibrate when the vibration motor works;

[0020] A dust collection box, the dust collection box is slidably connected to the lower front beam and extends below the filtering net to collect the dust falling from the filtering net.

[0021] An optional utility model content, the dust-proof device further includes:

[0022] A ranging sensor, the ranging sensor is horizontally installed at the upper limit height of the dust in the dust collection box and is electrically connected to the controller to alarm when the ranging sensor detects that the dust reaches the upper limit height.

[0023] An optional utility model content, the air guiding hole includes an air inlet hole and an air outlet hole. Among them, a temperature sensor is installed on the filtering framework at the air outlet hole and is electrically connected to the controller of the refrigerator to alarm when the temperature sensor detects that the temperature in the compressor compartment exceeds a preset temperature threshold.

[0024] An optional utility model content, an assembly groove is formed on the end surface of the dust-proof seat far from the embedded part.

[0025] An optional utility model content, wherein the filtering assembly is spaced from the lower front beam in the horizontal direction.

[0026] Based on the second aspect of the present utility model, a refrigerator is further provided. The refrigerator includes a dust-proof device and a lower front beam as described in any one of the above utility model contents. A front beam groove and at least two air guiding holes are formed in the lower front beam. Among them, the air guiding holes are arranged below the front beam groove. The embedded part cooperates with the lower front beam to form the accommodating space, and the filtering assembly covers the air guiding holes.

[0027] Compared with the prior art, the present utility model includes an embedded part, a dust-proof seat and a filtering assembly. The embedded part cooperates with the lower front beam of the refrigerator to form an accommodating space. The dust-proof seat is installed in the accommodating space and is detachably connected to the embedded part. The filtering assembly is connected to the dust-proof seat. Among them, the filtering assembly extends vertically outside the accommodating space and covers the air guiding holes formed in the lower front beam. Thus, the lower front beam of the refrigerator itself can be utilized to arrange a dust-proof device to filter the air entering the refrigerator, avoid the blockage of the heat dissipation air duct, and improve the heat exchange efficiency of the condenser.

[0028] The above description is only an overview of the technical solution of the present utility model. In order to be able to understand the technical means of the present utility model more clearly, it can be implemented according to the content of the description. And in order to make the above and other purposes, features and advantages of the present utility model more obvious and understandable, the following specifically illustrates the specific embodiments of the present utility model. Description of the Drawings

[0029] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present utility model. And throughout the drawings, the same reference numerals are used to represent the same components.

[0030] In the drawings:

[0031] Figure 1 is a three-dimensional structural schematic diagram of a dust-proof device provided by an embodiment of the present utility model;

[0032] Figure 2 is an exploded structural schematic diagram of a dust-proof device provided by an embodiment of the present utility model;

[0033] Figure 3 is a cross-sectional structural schematic diagram of a dust-proof device provided by an embodiment of the present utility model;

[0034] Figure 4It is a schematic connection diagram of a front lower beam and a dust collection box provided by an embodiment of the present utility model;

[0035] Figure 5 It is a schematic cross-sectional structure diagram of another dust-proof device provided by an embodiment of the present utility model;

[0036] Figure 6 is Figure 5 a schematic enlarged structure diagram of part A in

[0037] Figure 7 It is a schematic diagram of the position coordination between a refrigerator and a cabinet provided by an embodiment of the present utility model;

[0038] Figure 8 It is a schematic structure diagram of a length detection circuit provided by an embodiment of the present utility model;

[0039] Figure 9 It is a schematic structure diagram of a dust height detection circuit provided by an embodiment of the present utility model;

[0040] Reference numerals: 1, embedded part; 101, accommodation space; 102, limiting surface; 2, dust-proof seat; 201, assembly inclined surface; 202, assembly notch; 203, assembly groove; 3, filter assembly; 31, filter skeleton; 32, filter net; 4, connecting spring; 5, length sensor; 6, vibration motor; 7, dust collection box; 8, ranging sensor; 9, lower front beam; 901, front beam groove; 902, air guide hole; 9021, air inlet hole; 9022, air outlet hole; 10, refrigerator caster; 11, hinge assembly; 12, cabinet; 13, refrigerator body. Detailed implementation manners

[0041] Hereinafter, exemplary embodiments of the present utility model will be described in more detail with reference to the drawings. Although the exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided so that the present utility model can be more thoroughly understood and the scope of the present utility model can be completely conveyed to those skilled in the art.

[0042] With the improvement of people's living standards, the requirements for the performance and aesthetics of household appliances are getting higher and higher. For example, refrigerators are gradually starting to develop towards the built-in type. That is, the refrigerator is embedded in the cabinet, so as to improve the aesthetics by integrating the refrigerator and the cabinet visually.

[0043] Due to the embedded setting, the heat dissipation gaps between the top, back, and two sides where the refrigerator mates with the cabinet are very small, and generally the bottom of the refrigerator is used for heat dissipation. An external condenser is used instead of an internal condenser. Taking the condensation fan as the demarcation, the refrigerator compressor compartment is separated into two chambers, and forced convection heat transfer is utilized by the condensation fan to form a circulating heat dissipation system with air exhausting from one side and entering from the other side at the bottom. However, during the long-term operation of the heat dissipation system, dust in the air will accumulate on the condensation fins of the condenser. If not cleaned for a long time, dirt will be generated, causing the air duct to be blocked and resulting in a decrease in the heat transfer efficiency.

[0044] Based on the above technical problems, the present utility model is proposed. The present utility model may include an embedded part 1, a dust-proof seat 2, and a filter assembly 3. The embedded part 1 cooperates with the lower front beam 9 of the refrigerator to form a receiving space 101. The dust-proof seat 2 is installed in the receiving space 101 and is detachably connected to the embedded part 1. The filter assembly 3 is connected to the dust-proof seat 2. Among them, the filter assembly 3 extends vertically outside the receiving space 101 and covers the air guiding holes 902 opened on the lower front beam 9. Thus, the lower front beam 9 of the refrigerator itself can be utilized to set up a dust-proof device to filter the air entering the refrigerator, avoid the blockage of the heat dissipation air duct, and improve the heat transfer efficiency of the condenser.

[0045] Refer to Figure 1-4 As shown in the figure, an embodiment of the present utility model provides a dust-proof device. The dust-proof device may include an embedded part 1, a dust-proof seat 2, and a filter assembly 3. The embedded part 1 cooperates with the lower front beam 9 of the refrigerator to form a receiving space 101. The dust-proof seat 2 is installed in the receiving space 101 and is detachably connected to the embedded part 1. The filter assembly 3 is connected to the dust-proof seat 2. Among them, the filter assembly 3 extends vertically outside the receiving space 101 and covers the air guiding holes 902 opened on the lower front beam 9.

[0046] In an embodiment of the present utility model, the dust-proof device may include an embedded part 1, a dust-proof seat 2, and a filter assembly 3. The embedded part 1 refers to an element that is pre-installed on the refrigerator during the assembly of the refrigerator. It mainly cooperates with the lower front beam 9 of the refrigerator to form a receiving space 101 for installing the filter assembly 3 and the dust-proof seat 2. Among them, the receiving space 101 has an opening on the lower front beam 9. In other words, a front beam groove 901 communicating with the receiving space 101 is opened on the lower front beam 9, so as to facilitate the assembly of the filter assembly 3 and the dust-proof seat 2 into the receiving space 101 from the front beam groove 901.

[0047] The filtering component 3 is located below the dust-proof seat 2 and is fixedly connected to the dust-proof seat 2. The filtering component 3 is vertically arranged, extends from the accommodating space 101 to the outside of the accommodating space 101, and covers the air guiding holes 902 formed on the lower front beam 9.

[0048] In some embodiments, at least two air guiding holes 902 may be formed on the lower front beam 9. At least one of the air guiding holes 902 serves as an air inlet hole 9021 of the refrigerator heat dissipation system, and at least one of the air guiding holes 902 serves as an air outlet hole 9022 of the refrigerator heat dissipation system. The at least two air guiding holes 902 are spaced apart in the length direction of the lower front beam 9. Correspondingly, the length of the filtering component 3 can be adapted to the cumulative total length of all the air guiding holes 902, so as to completely cover the at least two air guiding holes 902 formed on the lower front beam 9. Thus, by using the lower front beam 9 of the refrigerator itself, the filtering component 3 arranged inside the air guiding holes 902 of the lower front beam 9 can filter the air entering the refrigerator, avoid the blockage of the heat dissipation air duct, and improve the heat exchange efficiency of the condenser. In addition, when the blockage of the heat dissipation air duct is serious, it can also avoid adverse phenomena such as the shutdown of the heat dissipation system and the over-high temperature of the refrigerator compressor.

[0049] Moreover, the present utility model does not increase the height of the bottom of the refrigerator, does not affect the volume ratio of the refrigerator, does not need to disassemble the condenser in the compressor compartment for cleaning, and prolongs the service life of the external condenser.

[0050] In an optional embodiment of the utility model, the dust-proof device may include an embedded part 1, a dust-proof seat 2, and a filtering component 3. The embedded part 1 cooperates with the lower front beam 9 of the refrigerator to form an accommodating space 101. The dust-proof seat 2 is installed in the accommodating space 101 and is detachably connected to the embedded part 1. The filtering component 3 is connected to the dust-proof seat 2. Among them, the filtering component 3 vertically extends to the outside of the accommodating space 101 and covers the air guiding holes 902 formed on the lower front beam 9. Among them, the dust-proof seat 2 is an elastic part and is snap-connected to the embedded part 1.

[0051] In the embodiment of the present utility model, the dust-proof device may include an embedded part 1, a dust-proof seat 2, and a filtering component 3. The embedded part 1 refers to an element pre-installed on the refrigerator during the assembly of the refrigerator. It mainly cooperates with the lower front beam 9 of the refrigerator to form an accommodating space 101 for installing the filtering component 3 and the dust-proof seat 2. Among them, the accommodating space 101 has an opening on the lower front beam 9. In other words, a front beam groove 901 communicating with the accommodating space 101 is formed on the lower front beam 9, so as to facilitate the assembly of the filtering component 3 and the dust-proof seat 2 into the accommodating space 101 from the front beam groove 901.

[0052] The filter component 3 is located below the dust-proof seat 2 and is fixedly connected to the dust-proof seat 2. The filter component 3 is vertically arranged, extends from the accommodation space 101 to the outside of the accommodation space 101, and covers the air guide holes 902 formed in the lower front beam 9.

[0053] In some embodiments, at least two air guide holes 902 may be formed in the lower front beam 9. At least one of the air guide holes 902 serves as the air inlet hole 9021 of the refrigerator cooling system, and at least one of the air guide holes 902 serves as the air outlet hole 9022 of the refrigerator cooling system. The at least two air guide holes 902 are spaced apart in the length direction of the lower front beam 9. Correspondingly, the length of the filter component 3 can be adapted to the cumulative total length of all the air guide holes 902, so as to completely cover the at least two air guide holes 902 formed in the lower front beam 9. Thus, by using the lower front beam 9 of the refrigerator itself, the filter component 3 provided inside the air guide holes 902 of the lower front beam 9 can filter the air entering the refrigerator, avoid the blockage of the heat dissipation air duct, and improve the heat exchange efficiency of the condenser. In addition, it can also avoid the adverse phenomena such as the shutdown of the cooling system and the over-high temperature of the refrigerator compressor when the heat dissipation air duct is severely blocked.

[0054] To facilitate the assembly of the filter component 3 and the dust-proof seat 2, the dust-proof seat 2 can be an elastic member. In other words, the dust-proof seat 2 has the ability of elastic deformation. Thus, after the filter component 3 is assembled into the accommodation space 101 through the front beam groove 901, the dust-proof seat 2 can form a pressure contact with the groove wall of the front beam groove 901 through its elastic property, so as to realize the connection between the dust-proof seat 2 and the lower front beam 9.

[0055] When the filter component 3 needs to be disassembled and cleaned, the dust-proof seat 2 can be pulled outwards, so that the dust-proof seat 2 deforms and disengages from the lower front beam 9, and then the filter component 3 can be pulled outwards to the outside of the accommodation space 101. At this time, the filter component 3 can be disassembled and cleaned.

[0056] In some embodiments, the dust-proof seat 2 can be made of materials such as rubber and silica gel. Those skilled in the art can determine the material for making the dust-proof seat 2 according to the actual design requirements, and no more limitations are imposed here.

[0057] An optional utility model embodiment, refer to Figure 3As shown, the dust-proof device may include an embedded part 1, a dust-proof seat 2, and a filter assembly 3. The embedded part 1 cooperates with the lower front beam 9 of the refrigerator to form a receiving space 101. The dust-proof seat 2 is installed in the receiving space 101 and is detachably connected to the embedded part 1. The filter assembly 3 is connected to the dust-proof seat 2. The filter assembly 3 extends vertically outside the receiving space 101 and covers the air guide holes 902 opened on the lower front beam 9. Among them, the horizontal distance between the embedded part 1 and the lower front beam 9 gradually decreases from the middle area of the embedded part 1 to the top of the embedded part 1, so as to form a limiting surface 102 for limiting the dust-proof seat 2 at the top of the embedded part 1.

[0058] In the embodiment of the present invention, the dust-proof device may include an embedded part 1, a dust-proof seat 2, and a filter assembly 3. The embedded part 1 refers to an element pre-installed on the refrigerator during the assembly of the refrigerator. It mainly cooperates with the lower front beam 9 of the refrigerator to form a receiving space 101 for installing the filter assembly 3 and the dust-proof seat 2. Among them, the receiving space 101 has an opening on the lower front beam 9. In other words, a front beam groove 901 communicating with the receiving space 101 is opened on the lower front beam 9, so that the filter assembly 3 and the dust-proof seat 2 can be conveniently assembled into the receiving space 101 from the front beam groove 901.

[0059] The filter assembly 3 is located below the dust-proof seat 2 and is fixedly connected to the dust-proof seat 2. The filter assembly 3 is vertically arranged and extends from inside the receiving space 101 to outside the receiving space 101, and covers the air guide holes 902 opened on the lower front beam 9.

[0060] In some embodiments, at least two air guide holes 902 may be opened on the lower front beam 9. At least one of the air guide holes 902 serves as an air inlet hole 9021 of the refrigerator cooling system, and at least one of the air guide holes 902 serves as an air outlet hole 9022 of the refrigerator cooling system. At least two air guide holes 902 are spaced apart in the length direction of the lower front beam 9. Correspondingly, the length of the filter assembly 3 can be adapted to the cumulative total length of all the air guide holes 902, so as to completely cover at least two air guide holes 902 opened on the lower front beam 9.

[0061] The horizontal distance between the embedded part 1 and the lower front beam 9 gradually decreases from the middle area of the embedded part 1 to the top of the embedded part 1. It can be understood that the width of the accommodating space 101 in the horizontal direction gradually widens from top to the middle area of the embedded part 1. Herein, the middle area refers to the area close to the center of the embedded part 1. For example, the area where the vertical distance from the center is within a preset threshold value. The preset threshold value can be 1 cm, 2 cm, etc. Those skilled in the art can determine the preset threshold value according to actual design requirements, and no further limitation is made herein.

[0062] Therefore, during the assembly process of the dust-proof seat 2, it can be avoided that the dust-proof seat 2 drops to the bottom of the accommodating space 101 due to its elastic deformation. Moreover, considering that the lower front beam 9 is arranged parallel to the vertical direction, the embedded part 1 can be set in a bent shape or an inclined shape, so that a limiting surface 102 for limiting the dust-proof seat 2 can be formed at the top of the embedded part 1. After the dust-proof seat 2 is clamped into the front beam groove 901, there is a small gap between the dust-proof seat 2 and the limiting surface 102, thereby avoiding the risk of the dust-proof seat 2 falling.

[0063] The top of the embedded part 1 can be understood as the area above the center of the embedded part 1. On the other hand, the width of the accommodating space 101 gradually widens from top to bottom, which can improve the assembly convenience of the filter assembly 3 in the accommodating space 101.

[0064] The lower front beam 9 of the refrigerator itself can be utilized, and the filter assembly 3 arranged inside the air guiding hole 902 of the lower front beam 9 filters the air entering the refrigerator, avoiding the blockage of the heat dissipation air duct and improving the heat exchange efficiency of the condenser. In addition, when the heat dissipation air duct is seriously blocked, the adverse phenomena such as the shutdown of the heat dissipation system and the over-high temperature of the refrigerator compressor can also be avoided.

[0065] In an optional utility model embodiment, the horizontal distance between the embedded part 1 and the lower front beam 9 gradually decreases from the bottom end of the embedded part 1 to the top of the embedded part 1, so as to form a limiting surface 102 for limiting the dust-proof seat 2 at the top of the embedded part 1.

[0066] In the embodiment of the present utility model, the horizontal distance between the embedded part 1 and the lower front beam 9 gradually decreases from the bottom end to the top of the embedded part 1. It can be understood that the width of the accommodating space 101 in the horizontal direction gradually becomes wider from the top to the bottom end of the embedded part 1. That is, the embedded part 1 is integrally inclined or bent. Thus, it can be avoided that during the assembly process of the dust-proof seat 2, due to its elastic deformation, it drops to the bottom of the accommodating space 101. And considering that the lower front beam 9 is arranged parallel to the vertical direction, the embedded part 1 can be set in a bent shape or an inclined shape, so that a limiting surface 102 for limiting the dust-proof seat 2 can be formed at the top of the embedded part 1. After the dust-proof seat 2 is clamped into the front beam groove 901, there is a small gap between the dust-proof seat 2 and the limiting surface 102, thereby avoiding the risk of the dust-proof seat 2 falling off.

[0067] The bottom end of the embedded part 1 can be understood as the area of the embedded part 1. On the other hand, the width of the accommodating space 101 gradually becomes wider from top to bottom, which can improve the assembly convenience of the filter assembly 3 in the accommodating space 101. And in the embodiment of the present utility model, the lower front beam 9 of the refrigerator itself can be utilized, and the filter assembly 3 arranged inside the air guiding hole 902 of the lower front beam 9 filters the air entering the refrigerator, avoiding the blockage of the heat dissipation air duct and improving the heat exchange efficiency of the condenser. In addition, it can also avoid the adverse phenomena such as the shutdown of the heat dissipation system and the overhigh temperature of the refrigerator compressor when the heat dissipation air duct is seriously blocked.

[0068] An optional embodiment of the utility model, referring to Figure 3 As shown, an assembly inclined surface 201 is arranged on the end surface of the dust-proof seat 2 close to the embedded part 1, and the assembly inclined surface 201 is in shape fit with the limiting surface 102.

[0069] In the embodiment of the present utility model, an assembly inclined surface 201 is arranged on the end surface of the dust-proof seat 2 close to the embedded part 1, and the assembly inclined surface 201 is in shape fit with the limiting surface 102. Thus, through the shape fit between the assembly inclined surface 201 and the limiting surface 102, the gap between the dust-proof seat 2 and the embedded part 1 can be controlled, so that it can be avoided that during the assembly process of the dust-proof seat 2, it drops into the accommodating space 101.

[0070] An optional embodiment of the utility model, referring to Figure 1 and Figure 2 As shown, an assembly notch 202 communicating with the accommodating space 101 is also formed on the dust-proof seat 2.

[0071] In the embodiment of the present utility model, the assembly notch 202 communicates with the accommodation space 101. When the user disassembles and assembles the filter assembly 3, hand positioning can be performed through the assembly notch 202 on the dust-proof seat 2. Thus, it is convenient for the user to apply an external force to extract the dust-proof seat 2 through the assembly notch 202, further improving the disassembly and assembly convenience of the dust-proof device.

[0072] An optional embodiment of the utility model, referring to Figure 2 As shown, the dust-proof device may include an embedded part 1, a dust-proof seat 2, and a filter assembly 3. The embedded part 1 cooperates with the lower front beam 9 of the refrigerator to form an accommodation space 101. The dust-proof seat 2 is installed in the accommodation space 101 and is detachably connected to the embedded part 1. The filter assembly 3 is connected to the dust-proof seat 2. Among them, the filter assembly 3 extends vertically outside the accommodation space 101 and covers the air guide hole 902 opened on the lower front beam 9. Among them, the filter assembly 3 includes a filter frame 31 and a filter net 32 arranged on the filter frame 31. Among them, the filter frame 31 is an elastic member and is fixed to the dust-proof seat 2.

[0073] In the embodiment of the present utility model, the dust-proof device may include an embedded part 1, a dust-proof seat 2, and a filter assembly 3. The embedded part 1 refers to an element pre-installed on the refrigerator during the assembly of the refrigerator. It mainly cooperates with the lower front beam 9 of the refrigerator to form an accommodation space 101 for installing the filter assembly 3 and the dust-proof seat 2. Among them, the accommodation space 101 has an opening on the lower front beam 9. In other words, a front beam groove 901 communicating with the accommodation space 101 is opened on the lower front beam 9, so that it is convenient to assemble the filter assembly 3 and the dust-proof seat 2 into the accommodation space 101 from the front beam groove 901.

[0074] The filter assembly 3 is located below the dust-proof seat 2 and is fixedly connected to the dust-proof seat 2. The filter assembly 3 is vertically arranged and extends from inside the accommodation space 101 to outside the accommodation space 101, and covers the air guide hole 902 opened on the lower front beam 9.

[0075] In some embodiments, at least two air guiding holes 902 may be formed in the lower front beam 9. At least one of the air guiding holes 902 serves as an air inlet hole 9021 of the refrigerator heat dissipation system, and at least one of the air guiding holes 902 serves as an air outlet hole 9022 of the refrigerator heat dissipation system. The at least two air guiding holes 902 are spaced apart in the length direction of the lower front beam 9. Correspondingly, the length of the filter assembly 3 can be adapted to the cumulative total length of all the air guiding holes 902, so as to completely cover the at least two air guiding holes 902 formed in the lower front beam 9. Thus, by using the lower front beam 9 of the refrigerator itself, the filter assembly 3 provided inside the air guiding holes 902 of the lower front beam 9 can filter the air entering the refrigerator, avoid the blockage of the heat dissipation air duct, and improve the heat exchange efficiency of the condenser. In addition, when the blockage of the heat dissipation air duct is serious, it can also avoid the adverse phenomena such as the shutdown of the heat dissipation system and the over-high temperature of the refrigerator compressor.

[0076] The filter assembly 3 may further include a filter skeleton 31 and a filter net 32. Among them, the filter net 32 is arranged on the filter skeleton 31. The filter skeleton 31 is an elastic member, so that the whole filter assembly 3 has the ability of elastic deformation. Thus, the filter assembly 3 can be assembled into the accommodation space 101 from the front beam groove 901 with a smaller opening. And the filter assembly 3 is not easily damaged during the disassembly and assembly process, improving the service life of the dust-proof device.

[0077] In some alternative embodiments, the filter skeleton 31 and the dust-proof seat 2 may be of an integral structure. Thus, when the dust-proof seat 2 is repeatedly pulled, the connection failure between the dust-proof seat 2 and the filter skeleton 31 can be avoided. Thereby, the connection stability between the dust-proof seat 2 and the filter assembly 3 can be further improved. The filter net 32 can be fixed on the filter skeleton 31 by means of bonding, clamping, etc. No more limitations are made here.

[0078] An alternative embodiment of the utility model, referring to Figure 1 、 Figure 2 and Figure 3 As shown, the dust-proof device may include an embedded part 1, a dust-proof seat 2 and a filter assembly 3. The embedded part 1 cooperates with the lower front beam 9 of the refrigerator to form an accommodation space 101. The dust-proof seat 2 is installed in the accommodation space 101 and is detachably connected to the embedded part 1. The filter assembly 3 is connected to the dust-proof seat 2. Among them, the filter assembly 3 extends vertically outside the accommodation space 101 and covers the air guiding holes 902 formed in the lower front beam 9. Wherein, an assembly groove 203 is formed on the end face of the dust-proof seat 2 away from the embedded part 1.

[0079] In an embodiment of the present utility model, an assembly groove 203 is formed on the end face of the dust-proof seat 2 away from the embedded part 1. It can also be understood that the assembly groove 203 is formed on the outer side of the dust-proof seat 2. On the one hand, the provision of the assembly groove 203 can reduce the overall thickness of the dust-proof seat 2, thereby improving the elastic performance of the dust-proof seat 2. On the other hand, the provision of the assembly groove 203 can reduce the amount of production materials for the dust-proof seat 2, thereby reducing the production cost of the dust-proof seat 2.

[0080] An optional embodiment of the utility model, referring to Figure 3 As shown, the filter assembly 3 and the lower front beam 9 are arranged at intervals in the horizontal direction.

[0081] In an embodiment of the present utility model, there is a certain interval between the filter assembly 3 and the lower front beam 9, so that the external air flow can flow in and the air flow in the refrigerator can flow out. It avoids the accumulation of dust filtered by the filter assembly 3 at the air guide holes 902, and reduces the heat dissipation efficiency of the refrigerator.

[0082] An optional embodiment of the utility model, referring to Figure 4 、 Figure 5 and Figure 6 As shown, the dust-proof device may include an embedded part 1, a dust-proof seat 2 and a filter assembly 3. The embedded part 1 cooperates with the lower front beam 9 of the refrigerator to form a receiving space 101. The dust-proof seat 2 is installed in the receiving space 101 and is detachably connected to the embedded part 1. The filter assembly 3 is connected to the dust-proof seat 2. Among them, the filter assembly 3 extends vertically outside the receiving space 101 and covers the air guide holes 902 formed on the lower front beam 9. And the dust-proof device further includes a connecting spring 4, a length sensor 5, a vibration motor 6 and a dust collection box 7, wherein:

[0083] The connecting spring 4 is arranged between the dust-proof seat 2 and the filter frame 31. The length sensor 5 is arranged on the dust-proof seat 2 and is electrically connected to the controller of the refrigerator to detect the spring length of the connecting spring 4. The vibration motor 6 is installed on the filter frame 31 and is electrically connected to the controller to drive the filter net 32 to vibrate when the vibration motor 6 works. The dust collection box 7 is slidably connected to the lower front beam 9 and extends below the filter net 32 to collect the dust falling from the filter net 32.

[0084] In an embodiment of the present utility model, the dust-proof device may include an embedded part 1, a dust-proof seat 2, and a filter assembly 3. The embedded part 1 refers to a component that is pre-installed on the refrigerator during the assembly of the refrigerator. It mainly cooperates with the lower front beam 9 of the refrigerator to form a receiving space 101 for installing the filter assembly 3 and the dust-proof seat 2. Among them, the receiving space 101 has an opening on the lower front beam 9. In other words, a front beam groove 901 communicating with the receiving space 101 is formed on the lower front beam 9, so as to facilitate the assembly of the filter assembly 3 and the dust-proof seat 2 into the receiving space 101 from the front beam groove 901.

[0085] The filter assembly 3 is located below the dust-proof seat 2 and is fixedly connected to the dust-proof seat 2. The filter assembly 3 is vertically arranged, extends from inside the receiving space 101 to outside the receiving space 101, and covers the air guide holes 902 formed on the lower front beam 9.

[0086] In some embodiments, at least two air guide holes 902 may be formed on the lower front beam 9. At least one of the air guide holes 902 serves as an air inlet hole 9021 of the refrigerator cooling system, and at least one of the air guide holes 902 serves as an air outlet hole 9022 of the refrigerator cooling system. At least two air guide holes 902 are spaced apart in the length direction of the lower front beam 9. Correspondingly, the length of the filter assembly 3 can be adapted to the cumulative total length of all the air guide holes 902, so as to completely cover at least two air guide holes 902 formed on the lower front beam 9. Thus, by using the lower front beam 9 of the refrigerator itself, the filter assembly 3 provided inside the air guide holes 902 of the lower front beam 9 can filter the air entering the refrigerator, avoid the blockage of the heat dissipation air duct, and improve the heat exchange efficiency of the condenser. In addition, it can also avoid adverse phenomena such as the shutdown of the cooling system and the overheating of the refrigerator compressor when the heat dissipation air duct is severely blocked.

[0087] The connecting spring 4 can adopt a tension spring, so that the connecting spring 4 is arranged between the dust-proof seat 2 and the filter skeleton 31. One end of the connecting spring 4 is fixed to the dust-proof seat 2, and the other end is fixed to the filter skeleton 31, so as to realize the fixed connection between the filter skeleton 31 and the dust-proof seat 2. The length sensor 5 can be selected as an optoelectronic sensor, which can be arranged on the top of the connecting spring 4 to detect the spring length of the connecting spring 4 by detecting the distance between the dust-proof seat 2 and the filter skeleton 31.

[0088] The controller may integrate a length detection circuit, refer to Figure 8As shown, the length detection circuit includes a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a voltage comparator U1, an NPN transistor Q1, and a speaker D1. Among them, the connection point of the first resistor R1 and the second resistor R2 serves as a voltage reference point to provide a reference voltage Vref1 for the voltage comparator U1. The voltage of the length sensor 54 is used as the detection voltage Vs1 and is input to the positive input terminal of the voltage comparator U1. After the voltage output terminal of the voltage comparator U1 is electrically connected to the third resistor R3, it is then electrically connected to the base of the NPN transistor Q1. A fourth resistor R4 is also coupled between the base and the emitter of the NPN transistor Q1. A vibration motor 6 is also coupled between the collector of the NPN transistor Q1 and the power supply V+. The vibration motor 6 is fixed to the filter frame 31.

[0089] When there is too much dust accumulated on the filter assembly 3, the connecting spring 4 will be affected by the gravity of the filter assembly 3, and the length of the spring will be stretched and lengthened. Correspondingly, the distance between the dust-proof seat 2 and the filter frame 31 will increase. When the detection voltage Vs is greater than the reference voltage Vref1, the voltage comparator U1 outputs a high level and drives the NPN transistor Q1 to conduct. When the NPN transistor Q1 conducts, the vibration motor 6 forms a closed loop and is powered on to drive the filter frame 31 to vibrate, so that the dust on the filter net 32 falls into the dust collection box 7 located below the filter net 32. Thus, the dust on the filter net 32 is collected through the dust collection box 7. Thereby, the disassembly and cleaning cycle of the filter assembly 3 can be extended, and the user experience is improved.

[0090] The reference voltage Vref1 is determined based on the deformation length threshold of the connecting spring 4, where the deformation length threshold is mainly determined based on the dust weight on the filter assembly 3. Among them, the set value of the dust weight can be obtained according to the experimental test results.

[0091] In an alternative embodiment of the utility model, the dust-proof device further includes a connecting spring 4, a length sensor 5, a vibration motor 6, and a dust collection box 7. The connecting spring 4 is arranged between the dust-proof seat 2 and the filter frame 31. The length sensor 5 is arranged on the dust-proof seat 2 and is electrically connected to the controller of the refrigerator to detect the spring length of the connecting spring 4. The vibration motor 6 is installed on the filter frame 31 and is electrically connected to the controller to drive the filter net 32 to vibrate when the vibration motor 6 works. The dust collection box 7 is slidably connected to the lower front beam 9 and extends below the filter net 32 to collect the dust falling from the filter net 32.

[0092] Moreover, the dust-proof device may further include a ranging sensor 8, which is horizontally installed at the upper limit height of the dust in the dust collection box 7 and is electrically connected to the controller, so that when the ranging sensor 8 detects that the dust reaches the upper limit height, the controller gives an alarm.

[0093] In the embodiment of the present invention, the ranging sensor 8 can be an optoelectronic sensor, which can be arranged at the upper limit height of the dust corresponding to the dust collection box 7. Among them, the position of the upper limit height of the dust can be determined based on the actual test results, and the controller can integrate a dust height detection circuit. For example, referring to Figure 9 As shown, the dust height detection circuit may include a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a voltage comparator U1, an NPN-type triode Q1, and a speaker D1. Among them, the connection between the first resistor R1 and the second resistor R2 serves as a voltage reference point to provide a reference voltage Vref2 for the voltage comparator U1. The voltage of the ranging sensor 84 is used as the detection voltage Vs2 and is input to the positive input terminal of the voltage comparator U1. After the voltage output terminal of the voltage comparator U1 is electrically connected to the third resistor R3, it is then electrically connected to the base of the NPN-type triode Q1. A fourth resistor R4 is also coupled between the base and the emitter of the NPN-type triode Q1. A speaker D1 is also coupled between the collector of the NPN-type triode Q1 and the power supply V+.

[0094] When the dust height in the dust collection box 7 is too high, it blocks the sensing head of the ranging sensor 8, and the detection voltage Vs2 is greater than the reference voltage Vref2. Then the voltage comparator U1 outputs a high level and drives the NPN-type triode Q1 to conduct. When the NPN-type triode Q1 conducts, the speaker D1 forms a closed loop to emit an alarm sound. Thus, the alarm is completed to prompt the user to process the dust in the dust collection box 7.

[0095] The reference voltage Vref2 is determined based on the voltage value output by the ranging sensor 8 when it is at the upper limit height position of the dust.

[0096] In an alternative embodiment of the present invention, the air guiding hole 902 may include an air inlet hole 9021 and an air outlet hole 9022. Among them, a temperature sensor (not marked in the figure) is installed on the filter skeleton 31 at the air outlet hole 9022 and is electrically connected to the controller to give an alarm when the temperature sensor detects that the temperature in the compressor chamber exceeds a preset temperature threshold.

[0097] In the embodiment of the present utility model, the temperature sensor can be arranged on one end face of the filter framework 31 close to the compressor chamber. Correspondingly, the controller can integrate a temperature detection circuit. For example, the temperature detection circuit can have the same structure as the dust height detection circuit. Thus, when the temperature in the compressor chamber is too high, the detection voltage Vs3 input by the temperature sensor to the temperature detection circuit is greater than the reference voltage Vref3, then the voltage comparator U1 outputs a high level and drives the NPN-type triode Q1 to conduct. When the NPN-type triode Q1 conducts, the loudspeaker D1 forms a closed loop to emit an alarm sound. Thereby, the alarm is completed to remind the user to check, which is beneficial to improving the service life of the compressor.

[0098] The reference voltage Vref3 is determined according to the upper limit value of the temperature in the compressor chamber and is obtained based on the experimental test results.

[0099] In some other embodiments, the loudspeaker D1 can also be replaced with an audible and visual alarm, an indicator light, a display screen, etc., and the alarm mode is not limited too much here.

[0100] To sum up, the embodiment of the present utility model discloses a dust-proof device. The dust-proof device can include an embedded part 1, a dust-proof seat 2 and a filter component 3. The embedded part 1 cooperates with the lower front beam 9 of the refrigerator to form a containing space 101. The dust-proof seat 2 is installed in the containing space 101 and is detachably connected to the embedded part 1. The filter component 3 is connected to the dust-proof seat 2. Among them, the filter component 3 extends vertically outside the containing space 101 and covers the air guide holes 902 opened on the lower front beam 9. Thus, the lower front beam 9 of the refrigerator itself can be utilized to set up a dust-proof device to filter the air entering the refrigerator, avoid the blockage of the heat dissipation air duct, and improve the heat exchange efficiency of the condenser.

[0101] Refer to Figure 7 As shown, the embodiment of the present utility model also discloses a refrigerator. The refrigerator includes the dust-proof device as described in any one of the above utility model contents and the lower front beam 9. The lower front beam 9 is provided with a front beam groove 901 and at least two air guide holes 902. Among them, the air guide holes 902 are arranged below the front beam groove 901. The embedded part 1 cooperates with the lower front beam 9 to form the containing space 101, and moreover, the filter component 3 covers the air guide holes 902.

[0102] In the embodiments of the present utility model, the dust-proof device may include an embedded part 1, a dust-proof seat 2, and a filter assembly 3. The embedded part 1 refers to an element that is pre-installed on the refrigerator during the assembly of the refrigerator. It mainly cooperates with the lower front beam 9 of the refrigerator to form a receiving space 101 for installing the filter assembly 3 and the dust-proof seat 2. Among them, the receiving space 101 has an opening on the lower front beam 9. In other words, a front beam groove 901 communicating with the receiving space 101 is formed on the lower front beam 9, so that the filter assembly 3 and the dust-proof seat 2 can be conveniently assembled into the receiving space 101 from the front beam groove 901.

[0103] The filter assembly 3 is located below the dust-proof seat 2 and is fixedly connected to the dust-proof seat 2. The filter assembly 3 is vertically arranged, extends from within the receiving space 101 to outside the receiving space 101, and covers the air guide holes 902 formed on the lower front beam 9.

[0104] In some embodiments, at least two air guide holes 902 may be formed on the lower front beam 9. At least one of the air guide holes 902 serves as an air inlet hole 9021 of the refrigerator cooling system, and at least one of the air guide holes 902 serves as an air outlet hole 9022 of the refrigerator cooling system. The at least two air guide holes 902 are spaced apart in the length direction of the lower front beam 9. Correspondingly, the length of the filter assembly 3 can be adapted to the cumulative total length of all the air guide holes 902, so as to completely cover the at least two air guide holes 902 formed on the lower front beam 9. The lower front beam 9 can be fixed to the hinge assembly 7 of the refrigerator.

[0105] The air guide holes 902 are located below the front beam groove 901. Among them, the bottom of the lower front beam 9 can be extended downward until it is slightly higher than the refrigerator caster 10 or slightly higher than the refrigerator bracket. When the refrigerator is embedded in the cabinet 12, the lower front beam 9 can close the gap between the ground and the bottom of the refrigerator and ensure that all the air currents flow in and out from the air guide holes 902.

[0106] Refer to Figure 7As shown, the refrigerator body 13 is fully embedded in the cabinet 12, and the gaps between the two sides, the top and the back of the refrigerator body 13 and the cabinet 12 are very small. By using the lower front beam 9 of the refrigerator itself, a filter assembly 3 is arranged inside the air guide holes 902 of the lower front beam 9 to filter the air entering the refrigerator. For example, air enters the filter assembly 3 from the air guide holes 902 on the left side. After being filtered by the filter assembly 3, dust and other impurities adhere to the filter assembly 3. The filtered air passes through the external condenser and then, under the action of the air pressure of the condensation fan, conducts convective heat exchange with the compressor of the refrigerator. The heated air after heat exchange flows out of the refrigerator body 13 from the air guide holes 902 on the right side. Thus, a cycle of heat dissipation process is completed. Among them, the setting of the filter assembly 3 can prevent the heat dissipation air duct from being blocked and improve the heat exchange efficiency of the condenser. In addition, it can also prevent the heat dissipation system from shutting down and the temperature of the refrigerator compressor from being too high when the heat dissipation air duct is seriously blocked.

[0107] In summary, the embodiment of the present utility model discloses a refrigerator, which may include an embedded part 1, a dust-proof seat 2 and a filter assembly 3. The embedded part 1 cooperates with the lower front beam 9 of the refrigerator to form an accommodation space 101. The dust-proof seat 2 is installed in the accommodation space 101 and is detachably connected to the embedded part 1. The filter assembly 3 is connected to the dust-proof seat 2. Among them, the filter assembly 3 extends vertically outside the accommodation space 101 and covers the air guide holes 902 opened on the lower front beam 9. Thus, the lower front beam 9 of the refrigerator itself can be used to set a dust-proof device to filter the air entering the refrigerator, prevent the heat dissipation air duct from being blocked and improve the heat exchange efficiency of the condenser.

[0108] Each embodiment in this specification is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other.

[0109] It is easy for those skilled in the art to think that any combination application of the above-mentioned embodiments is feasible. Therefore, any combination among the above-mentioned embodiments is an implementation scheme of the present utility model. However, due to space limitations, this specification does not elaborate on each of them here.

[0110] In the specification provided here, a large number of specific details are described. However, it can be understood that the embodiments of the present utility model can be practiced without these specific details. In some instances, well-known methods, structures and technologies are not shown in detail so as not to obscure the understanding of this specification.

[0111] Similarly, it should be understood that, for the purpose of streamlining the present utility model and facilitating the understanding of one or more of the various utility model aspects, in the above description of the exemplary embodiments of the present utility model, the various features of the present utility model are sometimes grouped together into a single embodiment, figure, or description thereof.

[0112] In addition, those skilled in the art will appreciate that although some of the embodiments described herein include certain features included in other embodiments rather than other features, the combination of features of different embodiments is meant to be within the scope of the present utility model and forms different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

Claims

1. A dustproof device, characterized in that: The dustproof device comprises: An embedded part (1), wherein the embedded part (1) cooperates with a lower front beam (9) of the refrigerator to form an accommodating space (101); A dustproof seat (2), the dustproof seat (2) being installed in the accommodating space (101) and being detachably connected to the embedded part (1); A filter assembly (3), the filter assembly (3) being connected to the dustproof seat (2), wherein the filter assembly (3) vertically extends outside the accommodating space (101) and covers the air guide hole (902) provided on the lower front beam (9).

2. The dustproof device according to claim 1, characterized in that: The dustproof seat (2) is an elastic member and is snap-connected with the embedded member (1).

3. The dustproof device according to claim 2, characterized in that: The horizontal distance between the embedded part (1) and the lower front beam (9) gradually decreases from the middle area of ​​the embedded part (1) to the top of the embedded part (1), so as to form a limiting surface (102) at the top of the embedded part (1) for limiting the dustproof seat (2).

4. The dustproof device according to claim 2, characterized in that: The horizontal distance between the embedded part (1) and the lower front beam (9) gradually decreases from the bottom end of the embedded part (1) to the top of the embedded part (1), so as to form a limiting surface (102) at the top of the embedded part (1) for limiting the dustproof seat (2).

5. The dustproof device according to claim 3 or 4, characterized in that: An assembly bevel (201) is provided on the end surface of the dustproof seat (2) close to the embedded component (1), and the assembly bevel (201) matches the limiting surface (102) in shape.

6. The dustproof device according to claim 5, characterized in that: The dustproof seat (2) is also provided with an assembly notch (202) which is in communication with the accommodating space (101).

7. The dustproof device according to claim 1, characterized in that: The filter assembly (3) comprises a filter frame (31) and a filter screen (32) arranged on the filter frame (31), wherein the filter frame (31) is an elastic member and is fixed to the dustproof seat (2).

8. The dust prevention device according to claim 7, characterized in that: The dustproof device also includes: A connecting spring (4), wherein the connecting spring (4) is arranged between the dustproof seat (2) and the filter frame (31); a length sensor (5), the length sensor (5) being arranged on the dustproof seat (2) and being electrically connected to a controller of the refrigerator so as to detect the spring length of the connecting spring (4); a vibration motor (6), the vibration motor (6) being mounted on the filter frame (31) and being electrically connected to the controller so as to drive the filter screen (32) to vibrate when the vibration motor (6) is working; A dust collecting box (7), wherein the dust collecting box (7) is slidably connected to the lower front beam (9) and extends to below the filter screen (32) to collect dust dropped from the filter screen (32).

9. The dustproof device according to claim 8, characterized in that: The dustproof device also includes: A distance measuring sensor (8) is horizontally mounted at an upper limit height of dust in the dust collecting box (7) and is electrically connected to the controller so that when the distance measuring sensor (8) detects that the dust has reached the upper limit height, the controller issues an alarm.

10. The dust prevention device according to claim 7, characterized in that: The air guide hole (902) includes an air inlet hole (9021) and an air outlet hole (9022), wherein a temperature sensor is installed on the filter frame (31) located at the air outlet hole (9022) and is electrically connected to the controller of the refrigerator so as to generate an alarm when the temperature sensor detects that the temperature of the compressor compartment exceeds a preset temperature threshold.

11. The dustproof device according to claim 1, characterized in that: An assembly groove (203) is provided on the end surface of the dustproof seat (2) away from the embedded part (1).

12. The dustproof device according to claim 1, characterized in that: The filter assembly (3) and the lower front beam (9) are arranged at intervals in the horizontal direction.

13. A refrigerator, characterized in that: The refrigerator comprises a dustproof device according to any one of claims 1 to 12 and a lower front beam (9), wherein the lower front beam (9) is provided with a front beam groove (901) and at least two air guide holes (902), wherein the air guide holes (902) are arranged below the front beam groove (901), the embedded part (1) cooperates with the lower front beam (9) to form the accommodating space (101), and the filter assembly (3) covers the air guide holes (902).

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