Refrigerator
By using the interlocking design of the duct bottom plate and cover plate, and the combination of foam layers, the problems of complex operation and air leakage of the duct cover plate of the horizontal freezer are solved, achieving the effects of efficient cold air delivery and low-cost maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU BAIXUE ELECTRIC APPLIANCES
- Filing Date
- 2025-05-08
- Publication Date
- 2026-05-29
Smart Images

Figure CN224302435U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of refrigeration equipment technology, and in particular to a horizontal freezer. Background Technology
[0002] In existing horizontal freezers, the air duct is defined by the air duct cover and the inner wall of the inner liner. The air duct cover is fixed to the inner liner with bolts. When maintaining and replacing the air duct cover, it is necessary to disassemble and reassemble the fasteners, which is complicated and has low assembly efficiency. There are gaps between the air duct cover and the inner liner, which can easily lead to air leakage and reduce the efficiency of cold air delivery. Temperature probes, air guides and other parts are often installed in the air duct, which requires the installation holes to be reserved during the production of the inner liner, making it inconvenient to adjust the position of various parts later. Summary of the Invention
[0003] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a horizontal freezer that is efficient, energy-saving and has low maintenance costs.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a horizontal freezer, comprising a cabinet body with an internal cavity and an air duct system installed within the cavity; the cabinet body includes an inner liner surrounding the cavity and an outer shell outside the inner liner; the inner liner has an installation notch on the side wall of the cavity for installing the air duct system; the air duct system includes an air duct base plate installed at the installation notch and an air duct cover plate fastened to the air duct base plate; the air duct cover plate and the air duct base plate define an air duct for supplying cold air; the air duct cover plate has a plurality of air outlets arranged sequentially along the direction of the air duct; the cabinet body further includes a foam layer filling the space between the outer shell, the inner liner, and the air duct base plate.
[0005] In the above technical solution, a further preferred embodiment is that, in the direction of the air duct, the bottom plate of the air duct includes a pair of end plates arranged opposite each other and a connecting plate connecting the pair of end plates, and each of the end plates is connected to the inner liner and the air duct cover.
[0006] In the above technical solution, it is further preferred that each of the end plate members has a recess for embedding the foam layer, and each of the recesses has a first groove for inserting at least a portion of the inner liner and a second groove for inserting at least a portion of the air duct cover.
[0007] In the above technical solution, it is further preferred that the inner liner has a first flange folded towards the foam layer at the installation notch, the first flange can be inserted into the first groove, and the outer surface of the first flange is in close contact with the end plate.
[0008] In the above technical solution, it is further preferred that the edge of the air duct cover has a folded second flange, the second flange can be inserted into the second groove, and the outer surface of the second flange is in close contact with the end plate.
[0009] In the above technical solution, it is further preferred that the duct cover plate includes a cover plate portion parallel to the connecting plate, and in the direction of the duct, the upper edge and lower edge of the cover plate portion are respectively connected to a second flange, and at least one of the pair of second flanges and the cover plate portion is provided with a plurality of air outlets.
[0010] In the above technical solution, a further preferred embodiment is that the air duct system includes a plurality of air guide plates, each air guide plate being detachably installed on the bottom plate of the air duct and corresponding to at least one of the air outlets.
[0011] In the above technical solution, it is further preferred that the bottom plate of the air duct is a plastic part.
[0012] Compared with the prior art, the present invention has the following advantages:
[0013] The air duct of this utility model is defined by an air duct base plate assembled on the inner liner and an air duct cover plate fastened to the air duct base plate. The air duct base plate facilitates the installation of parts such as air guide plates and probes. The assembly between the air duct cover plate and the air duct base plate is simple, quick and tight, and maintenance and replacement are convenient. The cold air delivery efficiency is high. The air duct system of this horizontal freezer has the advantages of high efficiency, energy saving and low maintenance cost. Attached Figure Description
[0014] Figure 1 A cross-sectional schematic diagram of a horizontal freezer provided by this utility model;
[0015] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle;
[0016] Figure 3 for Figure 1 A structural diagram of the cabinet (excluding the foam layer);
[0017] Figure 4 A partial cross-sectional schematic diagram of a horizontal freezer provided for the first embodiment of this utility model;
[0018] Figure 5 This is a partial cross-sectional schematic diagram of a horizontal freezer provided for the second embodiment of the present invention.
[0019] The components are as follows: 10. Cabinet body; 1. Receiving cavity; 2. Inner liner; 21. Installation notch; 22. First flange; 3. Outer shell; 4. Foam layer; 20. Air duct system; 5. Air duct bottom plate; 51. End plate; 511. First hook; 512. Recess; 513. First groove; 514. Second groove; 52. Connecting plate; 521. Second hook; 522. Protrusion; 6. Air duct cover; 62. Second flange; 63. Cover plate; 7. Air guide plate. Detailed Implementation
[0020] To illustrate the technical content, structural features, achieved objectives, and effects of the application in detail, the technical solutions of the present invention will be described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. In the following description, for illustrative purposes, numerous specific details are set forth to provide a detailed description of various exemplary embodiments or implementations of the invention. However, various exemplary embodiments may also be implemented without these specific details or in one or more equivalent arrangements. Furthermore, the various exemplary embodiments may differ, but are not necessarily exclusive. For example, the specific shape, construction, and characteristics of the exemplary embodiments may be used or implemented in another exemplary embodiment without departing from the inventive concept.
[0021] This utility model embodiment provides a horizontal freezer, such as Figure 1 , 3 As shown, the horizontal freezer includes a cabinet body 10 with an internal cavity 1 and an air duct system 20 installed within the cavity 1. The cabinet body 10 includes an inner liner 2 surrounding the cavity 1 and an outer shell 3 on the outside of the inner liner 2. The inner liner 2 has an installation notch 21 on the side wall of the cavity 1 for installing the air duct system 20. The air duct system 20 includes an air duct base plate 5 installed at the installation notch 21 and an air duct cover plate 6 fastened to the air duct base plate 5. The air duct cover plate 6 and the air duct base plate 5 define an air duct for supplying cold air. The air duct cover plate 6 has several air outlets (not shown in the figure) arranged sequentially along the direction of the air duct. A refrigeration module (not shown in the figure) is installed inside the cabinet body 10. The refrigeration module is connected to the air duct of the air duct system 20 to supply cold air into the air duct.
[0022] The cabinet 10 also includes a foam layer 4 filled between the outer shell 3, the inner liner 2, and the air duct bottom plate 5. When the horizontal freezer is manufactured, the air duct bottom plate 5 is first installed on the inner liner 2 and covers the installation notch 21. Then, the foam layer 4 is filled between the outer shell 3 and the inner liner 2 and between the outer shell 3 and the air duct bottom plate 5. The air duct bottom plate 5 is a plastic pad template that can remain undeformed when the foam layer 4 is foamed, so as to ensure the smooth flow of air.
[0023] like Figure 1-3As shown, in the direction of the air duct, the air duct bottom plate 5 includes a pair of end plates 51 arranged opposite each other and a connecting plate 52 connected between the pair of end plates 51. Each end plate 51 is engaged with the inner liner 2 and the air duct cover plate 6. Each end plate 51 and the connecting plate 52 have a locking structure. The locking structure includes a first locking part and a second locking part that are interlocked with each other. The first locking part is located on the end plate 51, and the second locking part is located on the connecting plate 52. The first locking part has a first hook part 511, and the second locking part has a second hook part 521 and a pair of protrusions 522 located at the inner and outer ends of the second hook part 521. The first hook part 511 and the second hook part 521 hook each other to prevent the end plate 51 and the connecting plate 52 from separating. The pair of protrusions 522 abut against the first locking part on the inner and outer sides of the two hooked hook parts to prevent the cold air in the air duct from leaking at the junction of the connecting plate 52 and the end plate 51.
[0024] Each end plate 51 has a recess 512 for embedding the foam layer 4, and each recess 512 has a first groove 513 for inserting at least part of the inner liner 2 and a second groove 514 for inserting at least part of the air duct cover 6.
[0025] The air duct base plate 5 facilitates the free installation and replacement of parts such as air guide plates and probes, making operation convenient, reducing installation and maintenance difficulty, and will not affect the insulation effect of the foam layer.
[0026] The inner liner 2 has a first flange 22 folded towards the foam layer 4 at the installation notch 21. The first flange 22 can be inserted into the first groove 513, and the outer surface of the first flange 22 is in close contact with the end plate 51 to prevent the air duct bottom plate 5 from falling off the inner liner 2 and to prevent cold leakage.
[0027] The edge of the duct cover 6 has a folded second flange 62, which can be inserted into the second groove 514. The outer surface of the second flange 62 is in close contact with the end plate 51 to improve the sealing of the joint between the duct cover 6 and the duct base plate 5. On the one hand, this prevents the duct cover 6 from falling off the duct base plate 5 during duct ventilation. On the other hand, it effectively prevents cold air in the duct from leaking from the joint between the duct cover 6 and the duct base plate 5, thereby improving the efficiency of cold air delivery and reducing losses during delivery. The plug-in design between the duct cover 6 and the duct base plate 5 avoids bolt fixing, improving installation efficiency, reducing installation difficulty, and facilitating later maintenance and replacement.
[0028] The duct cover 6 includes a cover portion 63 parallel to the connecting plate 52. In the direction of the duct, the upper edge and lower edge of the cover portion 63 are respectively connected to a second flange 62. The cover portion 63 and at least one of the pair of second flanges 62 are provided with multiple air outlets.
[0029] The air duct cover 6 of this utility model is detachably fastened to the air duct base plate 5. The air duct cover 6 can be replaced according to different refrigeration conditions to improve the refrigeration effect of the horizontal freezer.
[0030] The air duct system 20 includes several air guide plates 7, each of which is detachably installed on the air duct base plate 5 and corresponds to at least one air outlet. Each air guide plate 7 is used to block part of the cold air in the air duct and guide the blocked cold air to the corresponding air outlet, thereby increasing the air volume of the air outlet and improving the cooling effect and the uniformity of the internal cold distribution of the horizontal freezer.
[0031] like Figure 4 , 5 As shown, in this utility model, the height of the air duct cover plate 6 can be adjusted according to refrigeration requirements; in the inward and outward directions, the structure of the end plate 51 of the air duct bottom plate 5 can be adjusted according to the thickness of the foam layer 4. When the foam layer is thick, the air duct bottom plate 5 adopts a structure that is recessed to the outside of the inner liner 2, which can reduce the space occupied in the receiving cavity 1; when the foam layer is thin, the air duct bottom plate is basically flush with the wall of the inner liner 2, does not occupy the space of the foam layer, and the air duct formed occupies the space in the receiving cavity 1, thus avoiding affecting the insulation effect of the foam layer.
[0032] like Figure 4 As shown, in the first embodiment of this utility model, the foam layer 4 is relatively thick, and the air duct bottom plate 5 can be recessed outward to be embedded in the foam layer 4. The connecting plate 52 and the end plate 51 are both located on the outer side of the inner liner 2 and have a distance from the inner liner 2 in the inward and outward directions. The air duct cover plate 6 is assembled onto the air duct bottom plate 5, and an air duct is formed between the air duct cover plate 6 and the air duct bottom plate 5, which is at least partially embedded in the foam layer, thus reducing the occupation of the refrigerator compartment 11. In this embodiment of the utility model, the cover portion 63 of the air duct cover plate 6 is almost flush with the inner liner, and the second flange 62 is inserted into the recess of the air duct bottom plate 5, so the air outlet can only be opened on the cover portion 63, and single-sided air outlet is achieved on the side of the air duct.
[0033] like Figure 5As shown, in the second embodiment of this utility model, the foam layer 4' is relatively thin, and the connecting plate 52' and end plate 51' of the air duct bottom plate 5' are flush with the inner liner 2 to avoid affecting the insulation effect of the foam layer. In order to form a ventilation air duct, a relatively high air duct cover plate 6' is required. The cover plate part 63' is located inside the inner liner, and an air duct is formed between the air duct cover plate 6' and the air duct bottom plate 5' located inside the inner liner. The air duct occupies part of the refrigeration space. Because the duct cover 6' is relatively high, air outlets can be opened on its second flange 62'. Multiple air outlets can be opened on both the pair of second flanges 62' and the cover portion 63', achieving three-sided airflow from above, below, and the side of the duct; multiple air outlets can be opened on two of the pair of second flanges 62' and the cover portion 63', achieving two-sided airflow from above, below, and the side of the duct; or multiple air outlets can be opened on one of the pair of second flanges 62' and the cover portion 63', achieving single-sided airflow from above, below, and the side of the duct. The air outlet type of the duct cover 6' is selected according to the refrigeration requirements.
[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope. The scope of protection of this utility model is defined by the appended claims, specification, and their equivalents.
Claims
1. A horizontal freezer, characterized in that, The device includes a cabinet with an internal cavity and an air duct system installed within the cavity. The cabinet includes an inner liner surrounding the cavity and an outer shell outside the inner liner. The inner liner has an installation notch on its side wall for installing the air duct system. The air duct system includes an air duct base plate installed at the installation notch and an air duct cover plate fastened to the air duct base plate. The air duct cover plate and the air duct base plate define an air duct for supplying cold air. The air duct cover plate has a plurality of air outlets arranged sequentially along the direction of the air duct. The cabinet also includes a foam layer filling the space between the outer shell, the inner liner, and the air duct base plate.
2. The horizontal freezer according to claim 1, characterized in that, In the direction of the air duct, the bottom plate of the air duct includes a pair of end plates arranged opposite each other and a connecting plate connecting the pair of end plates. Each of the end plates is connected to the inner liner and the air duct cover.
3. The horizontal freezer according to claim 2, characterized in that, Each of the said end plates has a recess for embedding the foam layer, and each of the said recesses has a first groove for inserting at least a portion of the inner liner and a second groove for inserting at least a portion of the air duct cover.
4. The horizontal freezer according to claim 3, characterized in that, The inner liner has a first flange at the installation notch that folds towards the foam layer. The first flange can be inserted into the first groove, and the outer surface of the first flange is in close contact with the end plate.
5. The horizontal freezer according to claim 3, characterized in that, The edge of the air duct cover has a folded second flange, which can be inserted into the second groove, and the outer surface of the second flange is in close contact with the end plate.
6. The horizontal freezer according to claim 5, characterized in that, The duct cover plate includes a cover plate portion parallel to the connecting plate. Along the direction of the duct, the upper edge and lower edge of the cover plate portion are respectively connected to a second flange. At least one of the pair of second flanges and the cover plate portion is provided with a plurality of air outlets.
7. The horizontal freezer according to claim 1, characterized in that, The air duct system includes several air guide plates, each of which is detachably mounted on the bottom plate of the air duct and corresponds to at least one of the air outlets.
8. The horizontal freezer according to claim 1, characterized in that, The aforementioned air duct base plate is made of plastic.