Refrigerator
By installing defrosting pipes at the cabinet openings and drawer openings of the freezer, the heat of the refrigerant is used to prevent frost formation, thus solving the problems of reduced cooling efficiency and decreased sealing caused by frost buildup in the freezer, achieving improved energy saving and sealing performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO KAICHUANG ELECTRICAL APPLIANCE CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-05-19
AI Technical Summary
Frequent opening of the freezer doors and drawers allows humid air from the outside to enter, causing frost to form, reducing cooling efficiency, increasing energy consumption, and the frost layer can also lead to decreased sealing and jamming problems.
Defrosting pipes are installed at the openings of the freezer and drawers. The defrosting is achieved by heating the refrigerant in the refrigeration system, thus preventing frost from forming.
It effectively prevents frost formation, improves refrigeration efficiency, reduces energy consumption, and maintains the airtightness of cabinet doors and drawers to avoid jamming and save costs.
Smart Images

Figure CN224262014U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of refrigeration equipment technology, specifically to a freezer. Background Technology
[0002] Currently, freezers are widely used in people's daily lives. Freezers typically have a sliding door on top for easy access to stored items. Some freezers also have drawers. Because the doors and drawers are frequently opened, humid air from outside easily enters, causing frost to form at the door and drawer openings. This not only reduces the freezer's cooling efficiency and increases energy consumption, but the frost can also lead to reduced sealing and jamming of the doors and drawers. Utility Model Content
[0003] The purpose of this utility model is to provide a freezer that solves the above-mentioned technical problems in the prior art.
[0004] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:
[0005] This utility model provides a freezer, comprising:
[0006] The cabinet has a storage room inside, a cabinet opening at the top, and drawer openings on the side walls.
[0007] The door is located at the cabinet opening;
[0008] A drawer, which is disposed in the storage compartment and mates with the drawer opening;
[0009] A refrigeration system, which includes a refrigerant channel disposed within the cabinet;
[0010] The first defrosting pipe is installed inside the cabinet and surrounds the cabinet opening, with its opposite ends respectively connected to the refrigerant channel;
[0011] The second defrosting pipe is installed inside the cabinet and surrounds the drawer opening, with its opposite ends connected to the refrigerant channel.
[0012] In one embodiment of the present invention, the refrigeration system includes a compressor connected to the refrigerant channel, and the refrigerant output by the compressor enters the first defrost tube and the second defrost tube.
[0013] In one embodiment of this utility model, the cabinet includes an outer shell and an inner liner, and the storage room is located in the inner liner;
[0014] The opening at the top of the outer shell and the opening at the top of the inner liner constitute the cabinet opening, and the first defrosting pipe is located inside the outer shell and surrounds the opening at the top of the inner liner;
[0015] The opening on the outer shell sidewall and the opening on the inner liner sidewall form the drawer opening, and the second defrosting tube is located inside the outer shell and the opening on the inner liner sidewall.
[0016] In one embodiment of the present invention, the top of the outer shell is provided with a top frame, the door is disposed within the top frame, the bottom of the top frame forms an annular groove with an opening facing downwards, and the first defrosting pipe is disposed in the annular groove.
[0017] In one embodiment of the present invention, the opening edge of the inner liner sidewall extends outward to form an extension edge, and a support frame is provided on the side of the extension edge away from the inner liner. The support frame cooperates with the opening of the outer shell sidewall, and the second defrosting tube surrounds the extension edge.
[0018] In one embodiment of this utility model, multiple drawers are provided, and multiple adjacent drawer openings are provided on the side wall of the cabinet.
[0019] The plurality of drawers are respectively engaged with the corresponding drawer openings, and the second defrosting tube surrounds the plurality of drawer openings and bends to extend between adjacent drawer openings.
[0020] In one embodiment of this utility model, the plurality of drawers and the refrigeration system are arranged laterally at the bottom of the cabinet.
[0021] In one embodiment of the present invention, the door body includes a first door panel and a second door panel, and slide rail assemblies are respectively provided on the opposite two side edges of the cabinet opening. The slide rail assembly includes two slide rails arranged vertically, and the first door panel and the second door panel are slidably connected to the corresponding slide rails.
[0022] In one embodiment of this utility model, the drawer is located at the bottom of the storage room, and the storage room forms a storage space above the drawer.
[0023] In one embodiment of this utility model, a fixed shelf is provided in the storage room, and the shelf is located above the drawer.
[0024] At least one beneficial effect of this utility model is:
[0025] The freezer provided by this utility model has a first defrosting pipe arranged around the cabinet opening and a second defrosting pipe arranged around the drawer opening. The first and second defrosting pipes are respectively connected to the refrigerant channel of the refrigeration system. The heat of the refrigerant is used to heat the cabinet opening and the drawer opening respectively, thereby achieving the function of defrosting and preventing frost formation. The first and second defrosting pipes have a simple structure and utilize the heat of the refrigerant, which can save costs.
[0026] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description
[0027] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.
[0028] Figure 1 This is a perspective view of one embodiment of the freezer provided by this utility model;
[0029] Figure 2 This is a schematic diagram of the cabinet structure in one embodiment of the freezer provided by this utility model;
[0030] Figure 3 This is a cross-sectional view of the cabinet in one embodiment of the freezer provided by this utility model;
[0031] Figure 4 This is an exploded view of one embodiment of the freezer provided by this utility model;
[0032] Figure 5 This is a schematic diagram of the refrigeration system, the first defrosting pipe, and the second defrosting pipe in one embodiment of the freezer provided by this utility model;
[0033] Figure 6 This is a schematic diagram of the structure of the inner liner and the second defrosting pipe in one embodiment of the freezer provided by this utility model;
[0034] Figure 7 This is a schematic diagram of the inner liner structure and the second defrosting pipe in one embodiment of the freezer provided by this utility model.
[0035] The reference numerals and their corresponding component names in the figure are as follows:
[0036] 1. Cabinet body; 11. Outer shell; 12. Inner liner; 13. Storage compartment; 14. Cabinet opening; 15. Drawer opening; 16. Slide rail assembly; 110. Side opening of outer shell; 111. Front panel; 112. Back panel; 113. Side panel; 114. Top frame; 115. Bottom panel; 120. Side opening of inner liner; 121. Extension edge; 122. Support frame; 1141. Annular groove;
[0037] 2. Door body; 21. First door panel; 22. Second door panel;
[0038] 3. Drawers;
[0039] 4. Installation box;
[0040] 5. First defrosting pipe;
[0041] 6. Second defrosting tube;
[0042] 7. Partition. Detailed Implementation
[0043] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps set forth in these embodiments do not limit the scope of the present invention.
[0044] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.
[0045] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.
[0046] In this article, terms such as "up," "down," "front," "back," "left," and "right" are used only to indicate the relative positional relationship between related parts, rather than to define the absolute position of these related parts.
[0047] In this article, "first," "second," etc., are used only to distinguish one another, and not to indicate degree of importance, order, or prerequisite for each other.
[0048] In this document, terms such as “equal” and “same” are not strict mathematical and / or geometric limitations, but also include errors that are understandable to those skilled in the art and permissible in manufacturing or use.
[0049] In this document, unless otherwise stated, "multiple" means two or more.
[0050] In this document, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection. Those skilled in the art will understand the specific meaning of these terms in this document based on the specific circumstances.
[0051] Wherever possible, the various aspects and features described and illustrated in this specification may be applied individually, and these individual aspects may serve as the subject matter of a divisional application.
[0052] Figures 1 to 7 This invention illustrates a refrigerator provided by the present invention. The refrigerator includes a cabinet body 1, a door body 2, a drawer 3, a refrigeration system, a first defrost pipe 5, and a second defrost pipe 6.
[0053] The cabinet 1 has a storage compartment 13 inside, a cabinet opening 14 at the top, and drawer openings 15 on the side walls. A door 2 is located at the cabinet opening 14, and a drawer 3 is located inside the storage compartment 13 and engages with the drawer opening 15. The drawer 3 can be pulled out from the drawer opening 15 for easy access to items. The refrigeration system includes a refrigerant channel located within the cabinet 1, and is used to cool the storage compartment 13 using a refrigerant medium.
[0054] The first defrost pipe 5 and the second defrost pipe 6 are both located inside the cabinet 1. The first defrost pipe 5 surrounds the cabinet opening 14, and its opposite ends are connected to the refrigerant channel. The second defrost pipe 6 surrounds the drawer opening 15, and its opposite ends are connected to the refrigerant channel.
[0055] The first defrost pipe 5 and the second defrost pipe 6 use the heat of the refrigerant to heat the cabinet opening 14 and the drawer opening 15 respectively, which can defrost and prevent frost from forming. This avoids problems such as reduced cooling efficiency and increased energy consumption caused by frost, as well as decreased sealing and jamming of cabinet doors and drawers. The first defrost pipe 5 and the second defrost pipe 6 have a simple structure and utilize the heat of the refrigerant, eliminating the need for a separate heat source and saving costs.
[0056] The refrigeration system includes a compressor connected to the refrigerant passage. The refrigerant output from the compressor enters the first defrost pipe 5 and the second defrost pipe 6. After passing through the first defrost pipe 5 and the second defrost pipe 6, the refrigerant flows back into the refrigerant passage.
[0057] Specifically, the refrigeration system includes a compressor, a condenser, a throttling device, and an evaporator, which are sequentially connected and form a circulation loop through a refrigerant channel. The refrigerant circulates within the refrigeration system. After absorbing heat from the object being cooled in the evaporator, the refrigerant vaporizes into a low-temperature, low-pressure gaseous medium. This gas is then drawn into the compressor and compressed into a high-pressure, high-temperature vapor. The vapor then enters the condenser, where it releases heat and condenses into a high-pressure liquid. This liquid is then throttled by the throttling device into a low-pressure, low-temperature refrigerant, which re-enters the evaporator to absorb heat and vaporize, thus achieving the purpose of cyclic refrigeration. The structure of the refrigeration system and the working principle of refrigeration through the refrigerant are existing technologies well-known to those skilled in the art.
[0058] The cabinet 4 is equipped with a mounting box 4 for accommodating the refrigeration system, which can be located on one side of the drawer 3. The first defrost pipe 5 and the second defrost pipe 6 extend into the mounting box 4 respectively.
[0059] The first defrost pipe 5 and the second defrost pipe 6 are respectively connected to the outlet of the compressor. The high-temperature refrigerant output by the compressor enters the first defrost pipe 5 and the second defrost pipe 6 respectively. After the heat is transferred to the cabinet opening 14 and the drawer opening 15, the temperature drops and then returns to the refrigerant passage and enters the condenser, which helps to improve the condensation efficiency.
[0060] In some implementations, such as Figure 3 As shown, the cabinet 1 includes an outer shell 11 and an inner liner 12, with a storage compartment 13 formed within the inner liner 12. An opening at the top of the outer shell 11 and an opening at the top of the inner liner 12 form a cabinet opening 14. A first defrost pipe 5 is located inside the outer shell 11 and surrounds the opening at the top of the inner liner 12. Openings on the side walls of the outer shell 11 and the inner liner 12 form drawer openings 15. A second defrost pipe 6 is located inside the outer shell 11 and surrounds the opening on the side wall of the inner liner 12. Insulation material can be provided between the outer shell 11 and the inner liner 12, and a refrigeration system is used to cool the inner liner 12.
[0061] like Figure 4 As shown, the outer shell 11 includes a front plate 111, a rear plate 112 and two opposing side plates 113 surrounding the side walls of the inner liner 12, and also includes a bottom plate 115 located at the bottom of the inner liner 12.
[0062] The outer casing 11 has a top frame 114 at its top, and a front panel 111, a rear panel 112, and two side panels 113 are connected to the bottom of the top frame 114. The door 2 is disposed inside the top frame 114, and the bottom of the top frame 114 forms an annular groove 1141 with an opening facing downwards. The first defrost pipe 5 is disposed in the annular groove 1141. Specifically, the first defrost pipe 5 wraps around the annular groove 1141 once, and its two ends extend to the refrigeration system.
[0063] The opening edge of the inner liner 12 extends outward to form an extension edge 121. A support frame 122 is provided on the side of the extension edge 121 away from the inner liner 12. The support frame 122 cooperates with the opening of the side wall of the outer shell 11. The second defrost pipe 6 surrounds the extension edge 121. Specifically, the second defrost pipe 6 surrounds the extension edge 121 once and extends to the refrigeration system at opposite ends.
[0064] In some implementations, such as Figure 3 As shown, multiple drawers 3 are provided, and multiple adjacent drawer openings 15 are provided on the side wall of the cabinet body 1. The multiple drawers 3 respectively mate with the corresponding drawer openings 15. The second defrosting pipe 6 surrounds the multiple drawer openings 15 and bends into the spaces between adjacent drawer openings 15 to fully heat the multiple drawer openings 15.
[0065] Specifically, the opening on the side wall of the inner liner 12 is defined as the inner liner side opening 120, and the opening on the side wall of the outer shell 11 is defined as the outer shell side opening 110.
[0066] In one implementation, such as Figure 4 As shown, the cabinet body 1 is provided with multiple drawer openings 15, the side wall of the outer shell 11 is provided with an outer shell side opening 110, and the side wall of the inner liner 12 is provided with multiple inner liner side openings 120, all of which are located within the outer shell side opening 110. Multiple drawers 3 respectively mate with their corresponding inner liner side openings 120.
[0067] like Figure 6 and Figure 7 As shown, the edges of the multiple inner liner side openings 120 respectively form extension edges 121, and each is provided with a support frame 122. Adjacent support frames 122 are connected to each other and fit into the outer shell side opening 110. The second defrosting pipe 6 surrounds the extension edges 121 of the multiple inner liner side openings 120 and bends to extend into the space between the extension edges 121 of adjacent inner liner side openings 120.
[0068] In one implementation, such as Figure 4 As shown, multiple drawers 3 and the refrigeration system are arranged horizontally at the bottom of the cabinet 1, leaving more space above for storing items. The refrigeration system is housed in a mounting box 4, which is located on one side of the drawer 3.
[0069] In one implementation, such as Figure 3 and Figure 4 As shown, drawer 3 is located at the bottom of storage room 13, and storage room 13 forms a storage space above drawer 3.
[0070] In one implementation, such as Figure 3 and Figure 4 As shown, a fixed shelf 7 can be installed in the storage compartment 13. The shelf 7 is located above the drawer 3, and items can be placed on the shelf 7 to make full use of the storage space. The shelf 7 can be a mesh structure, and the cold air in the storage compartment 13 can pass through the shelf 7. The shelf 7 can be connected to the inner wall of the inner liner 12 by clips or fasteners.
[0071] In one implementation, such as Figure 1 and Figure 2 As shown, the door 2 includes a first door panel 21 and a second door panel 22. Slide rail assemblies 16 are respectively provided on the opposite sides of the cabinet opening 14, and the slide rail assemblies 16 on both sides are parallel to each other. Each slide rail assembly 16 includes two slide rails arranged vertically, and the first door panel 21 and the second door panel 22 are slidably connected to their respective slide rails.
[0072] Specifically, the opposite side edges of the first door panel 21 are respectively connected to the upper slide rails of the corresponding slide rail assemblies 16, and the opposite side edges of the second door panel 22 are respectively connected to the lower slide rails of the corresponding slide rail assemblies 16. The first door panel 21 and the second door panel 22 slide laterally along the slide rail assembly 16, which can open or close the cabinet opening 14. The slide rail assembly 16 is set on the top frame 114, and the first defrosting pipe 5 is wrapped in the annular groove 1141 of the top frame 114, which can prevent the slide rail assembly 16 from frosting and avoid the jamming problem of the first door panel 21 and the second door panel 22 due to frosting.
[0073] In some embodiments, the first defrost pipe 5 and the second defrost pipe 6 may be equipped with control valves, which control the opening and closing of the first defrost pipe 5 and the second defrost pipe 6 respectively.
[0074] When the control valve is open, the refrigerant in the corresponding first defrost pipe 5 or second defrost pipe 6 circulates for defrosting. When the control valve is closed, the refrigerant in the corresponding first defrost pipe 5 or second defrost pipe 6 stops circulating. The two control valves can be electrically connected to the freezer's control system for control.
[0075] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical applications, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein. The scope of the present invention is defined by the appended claims.
Claims
1. A refrigerator characterized by, include: The cabinet has a storage room inside, a cabinet opening at the top, and drawer openings on the side walls. The door is located at the cabinet opening; A drawer, which is disposed in the storage compartment and mates with the drawer opening; A refrigeration system, which includes a refrigerant channel disposed within the cabinet; The first defrosting pipe is installed inside the cabinet and surrounds the cabinet opening, with its opposite ends respectively connected to the refrigerant channel; The second defrosting pipe is installed inside the cabinet and surrounds the drawer opening, with its opposite ends connected to the refrigerant channel.
2. The freezer according to claim 1, characterized in that, The refrigeration system includes a compressor connected to the refrigerant passage, and the refrigerant output by the compressor enters the first defrost pipe and the second defrost pipe.
3. The freezer according to claim 1, characterized in that, The cabinet includes an outer shell and an inner liner, and the storage compartment is located in the inner liner; The opening at the top of the outer shell and the opening at the top of the inner liner constitute the cabinet opening, and the first defrosting pipe is located inside the outer shell and surrounds the opening at the top of the inner liner; The opening on the outer shell sidewall and the opening on the inner liner sidewall form the drawer opening, and the second defrosting tube is located inside the outer shell and the opening on the inner liner sidewall.
4. The freezer according to claim 3, characterized in that, The top of the outer casing is provided with a top frame, the door is disposed within the top frame, and the bottom of the top frame forms an annular groove with an opening facing downwards, and the first defrosting pipe is disposed in the annular groove.
5. The freezer according to claim 3, characterized in that, The opening edge of the inner liner sidewall extends outward to form an extension edge. A support frame is provided on the side of the extension edge away from the inner liner. The support frame cooperates with the opening of the outer shell sidewall. The second defrosting tube surrounds the extension edge.
6. The freezer according to claim 3, characterized in that, The cabinet has multiple drawers, and the side wall of the cabinet has multiple adjacent drawer openings. The plurality of drawers are respectively engaged with the corresponding drawer openings, and the second defrosting tube surrounds the plurality of drawer openings and bends to extend between adjacent drawer openings.
7. The freezer according to claim 6, characterized in that, The drawers and the refrigeration system are arranged laterally at the bottom of the cabinet.
8. The freezer according to claim 1, characterized in that, The door includes a first door panel and a second door panel. Slide rail assemblies are respectively provided on the opposite two sides of the cabinet opening. The slide rail assembly includes two slide rails arranged vertically. The first door panel and the second door panel are slidably connected to the corresponding slide rails.
9. The freezer according to any one of claims 1 to 8, characterized in that, The drawer is located at the bottom of the storage compartment, and the storage compartment forms a storage space above the drawer.
10. The freezer according to claim 9, characterized in that, The storage room is equipped with a fixed shelf, which is located above the drawer.