Injection-molded and extruded combined refrigerator door, refrigerator, and assembly method

Abstract

The present invention discloses a refrigerator door, a refrigerator and an assembly method of a combination of injection molded parts and extruded parts, wherein in the refrigerator door, the upper end cover, the upper cover plate, the lower end cover and the lower cover plate are injection molded parts, and the side frame strips are extruded parts. The upper cover plate is detachably connected to the back side of the upper end cover, and the lower cover plate is detachably connected to the back side of the lower end cover. The upper frame assembly and the lower frame assembly are respectively detachably connected to the side frame strips on both sides through angle brackets at both ends. The insulating glass assembly is clamped in the square cavity, and the back sides of the upper cover plate and the lower cover plate are respectively provided with a first groove, and the two sides of the first groove are staggered along the length direction of the first groove with raised clips, and the back sides of the side frame strips are provided with a second groove, and the door seal strips are respectively detachably connected to the first groove and the second groove. The present invention adopts an assembly and matching structure of injection molded parts and extruded parts, which has the advantages of beautiful appearance, easy assembly, simple structure and stability. At the same time, it is convenient to install and disassemble the door seal strip, and no additional door seal strip fixing parts are required.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigerators, and in particular to a refrigerator door composed of an injection molded part and an extruded part, a refrigerator, and an assembly method. Background Art

[0002] In the prior art, the frame structure of a refrigerator door is usually assembled from four extruded plastic strips, with the four corners fixed by screws or the like. Due to the limitations of the extrusion molding process, the structure and appearance of the refrigerator door in this manner are relatively simple.

[0003] Chinese patent CN200820230965.X discloses an integrated injection-molded glass door for a freezer, comprising a glass door body made of tempered glass, with an integral plastic frame covering the four sides of the glass door body, and a strip handle on one edge of the upper surface of the glass door body. Although the frame structure of this freezer door is injection-molded, the one-piece molding method is difficult to assemble and disassemble, which has certain limitations. In addition, to prevent cold air loss and maintain a stable temperature inside the freezer, the freezer door is usually equipped with a door seal. There are various ways to connect the door seal, such as glue fixation or providing a T-shaped slot with a small opening width and a large internal width in the door frame for detachable connection of the door seal. However, in the prior art, the injection-molded door frame structure cannot form a T-shaped slot with a small opening width and a large internal width. Therefore, to achieve a detachable seal structure, an additional extruded piece with a T-shaped slot or other auxiliary fixing parts must be added and fixed, which is very troublesome. Summary of the Invention

[0004] The object of the present invention is to provide a refrigerator door and refrigerator assembly method that is a combination of injection molded parts and extruded parts. The refrigerator door and refrigerator assembly method adopt an assembly and matching structure of injection molded parts and extruded parts, which has the advantages of being beautiful, easy to assemble, simple in structure and stable. At the same time, it is convenient to install and remove the door seal without the need for additional door seal fixing parts.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] Provided is a refrigerator door combined with injection molding and extrusion parts, comprising: an upper frame assembly, a lower frame assembly, a side frame strip, an insulating glass assembly and a door seal; the upper frame assembly comprises: an upper end cover and an upper cover plate, the lower frame assembly comprises: a lower end cover and a lower cover plate, the upper end cover, the upper cover plate, the lower end cover and the lower cover plate are injection molding parts, the side frame strip is an extrusion part, the upper cover plate is detachably connected to the back of the upper end cover, the lower cover plate is detachably connected to the back of the lower end cover, the upper end cover and the upper cover plate are respectively detachably connected with an L-shaped corner code between the two ends, the lower end cover and the lower cover plate are respectively detachably connected with an L-shaped corner code between the two ends, the upper frame assembly is connected through the two ends The corner codes are detachably connected to the upper ends of the side frame strips on both sides, and the lower frame assembly is detachably connected to the lower ends of the side frame strips on both sides through the corner codes at both ends. The upper frame assembly, the lower frame assembly and the side frame strips form a frame structure with a square cavity in the middle, and the insulating glass assembly is embedded in the square cavity. The backs of the upper cover plate and the lower cover plate are respectively provided with a first groove, and the two sides of the first groove are staggered with raised card strips along the length direction of the first groove. The back of the side frame strip is provided with a second groove with an inverted T-shaped cross-section, and the door seal is detachably connected to the first groove and the second groove through a third connecting part on one side.

[0007] As a preferred solution for the refrigerator door composed of injection molded parts and extruded parts, strip-shaped through holes corresponding to the clip strips are distributed at the bottom of the first groove.

[0008] As a preferred solution for the refrigerator door composed of injection molded parts and extruded parts, the length of the clip on one side of the first groove is equal to the spacing between adjacent clips on the other side.

[0009] As a preferred solution for a refrigerator door combined with injection molded parts and extruded parts, the two ends of the upper end cover are L-shaped structures facing downward, and the two ends of the upper end cover are respectively provided with L-shaped mounting grooves matching the angle code, and the mounting grooves at both ends of the upper end cover are respectively fixed with the angle code by screws, and one end corresponding to the angle code is exposed at the end of the upper end cover, and the two ends of the lower end cover are L-shaped structures facing upward, and the two ends of the lower end cover are respectively provided with L-shaped mounting grooves matching the angle code, and the mounting grooves at both ends of the lower end cover are respectively fixed with the angle code by screws, and one end corresponding to the angle code is exposed at the end of the lower end cover; the upper cover plate is fixedly connected to the back of the upper end cover by screws and a snap-fit ​​structure, and the lower cover plate is fixedly connected to the back of the lower end cover by screws and a snap-fit ​​structure.

[0010] As a preferred solution for a refrigerator door composed of injection molded parts and extruded parts, the ends of the upper end cover and the lower end cover are respectively provided with a first connecting part, the first connecting part and the angle code at the corresponding position constitute a first connecting group, the two ends of the side frame strip are respectively provided with a first connecting port matching the first connecting group, the upper frame assembly and the lower frame assembly are respectively inserted into the first connecting port at both ends of the side frame strip through the first connecting group, and the side frame strip is fixedly connected to the angle code by screws.

[0011] As a preferred solution for a refrigerator door composed of injection molded parts and extruded parts, the ends of the upper end cover and the lower end cover are respectively provided with second connecting parts, and the two ends of the side frame strips are respectively provided with second connecting ports matching the second connecting parts, and the second connecting parts of the upper frame assembly and the lower frame assembly are respectively inserted into the second connecting ports at both ends of the side frame strips.

[0012] As a preferred solution for a refrigerator door combined with injection molded parts and extruded parts, the insulating glass assembly includes: an inner layer of glass, an outer layer of glass and a sealing frame. The sealing frame is a square frame structure. The front and back sides of the sealing frame are respectively fixedly connected to the outer layer of glass and the inner layer of glass. The upper frame assembly, the lower frame assembly and the side frame strip are provided with connecting grooves matching the sealing frame on one side close to the center of the square cavity, and the sealing frames are respectively stuck in the connecting grooves on all sides.

[0013] As a preferred solution for a refrigerator door composed of injection molded and extruded parts, the side frame strip on one side is detachably connected to a handle, the lower end of the lower frame assembly close to the handle is detachably connected to a door lock assembly, and the ends of both the lower frame assembly and the upper frame assembly away from the handle are detachably connected to a door shaft connection assembly.

[0014] The present invention further provides a refrigerator, comprising the refrigerator door composed of the injection molded part and the extruded part as described above.

[0015] The present invention further provides a method for assembling a freezer door comprising a combination of injection molded parts and extruded parts as described above, comprising the following steps:

[0016] Fix the two ends of the upper end cover with angle brackets respectively;

[0017] The upper cover plate is fixedly connected to the back of the upper end cover with angle brackets at both ends to form an upper frame assembly, and the angle brackets in the upper frame assembly are located between the upper cover plate and the upper end cover;

[0018] Fix the two ends of the lower end cover with angle brackets respectively;

[0019] The lower cover plate is fixedly connected to the back of the lower end cover with angle brackets at both ends to form a lower frame assembly, and the angle brackets in the lower frame assembly are located between the lower cover plate and the lower end cover;

[0020] Place the insulating glass assembly between the side frame strips on both sides;

[0021] The upper frame assembly is fixedly connected to the upper ends of the side frame bars on both sides through the angle brackets at both ends;

[0022] The lower frame assembly is fixedly connected to the lower ends of the side frame strips on both sides through the angle brackets at both ends;

[0023] The insulating glass assembly is embedded in the square cavity surrounded by the upper frame assembly, the lower frame assembly and the side frame strips;

[0024] The door seal strips are distributed and fixedly connected in the first groove of the upper frame assembly, the first groove of the lower frame assembly and the second grooves of the side frame strips on both sides;

[0025] Complete the assembly of the freezer door.

[0026] The beneficial effects of the present invention are as follows: the freezer door, freezer and assembly method of the combination of injection molded parts and extruded parts proposed in the present invention, by setting the upper end cover, upper cover plate, lower end cover and lower cover plate as injection molded parts, and setting the side frame strips as extruded parts, adopting the assembly and matching structure of injection molded parts and extruded parts, makes the appearance of the freezer door more diverse and beautiful, meeting different appearance requirements; at the same time, the various structures are connected to each other in a coordinated manner, the structure is simple, stable, and easy to assemble; further, the upper cover plate and the lower cover plate in the injection molded part are respectively provided with a first groove, and the two sides of the first groove are staggered along the length direction with raised clips, which cleverly solves the problem of being unable to demold, realizes one-piece molding and demolding, and does not require additional door seal fixing parts; and the staggered clips can make the door seal detachably connected to the first groove, and at the same time make the door seal more easily embedded in the first groove, thereby facilitating the installation and disassembly of the door seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0028] Figure 1 1 is a front structural diagram of a refrigerator door combined with injection molded parts and extruded parts according to an embodiment of the present invention;

[0029] Figure 2 yes Figure 1 A partial enlarged view of position A in the middle;

[0030] Figure 3 yes Figure 1 A partial enlarged view of position B in the middle;

[0031] Figure 4 1. This is a schematic diagram of the back structure of the injection molded and extruded combined freezer door according to one embodiment of the present invention when no door seal is installed;

[0032] Figure 5 This is an exploded structural diagram of a refrigerator door combined with injection molded parts and extruded parts according to an embodiment of the present invention;

[0033] Figure 6 1 is a front structural diagram of an upper frame assembly according to an embodiment of the present invention;

[0034] Figure 7 1 is a schematic diagram of the back structure of the upper frame assembly according to one embodiment of the present invention;

[0035] Figure 8 This is a schematic structural diagram of an upper end cover with an angle bracket according to an embodiment of the present invention;

[0036] Figure 9 1 is a schematic structural diagram of an upper end cover according to an embodiment of the present invention;

[0037] Figure 10 This is a schematic structural diagram of one side of an upper cover plate according to an embodiment of the present invention;

[0038] Figure 11 This is a schematic structural diagram of the other side of the upper cover plate according to one embodiment of the present invention;

[0039] Figure 12 1 is a front structural diagram of a lower frame assembly according to an embodiment of the present invention;

[0040] Figure 13 1 is a schematic diagram of the back structure of the lower frame assembly according to an embodiment of the present invention;

[0041] Figure 14 This is a schematic structural diagram of a lower end cover with an angle bracket according to an embodiment of the present invention;

[0042] Figure 15 1 is a schematic structural diagram of a lower end cover according to an embodiment of the present invention;

[0043] Figure 16 This is a schematic structural diagram of one side of a lower cover plate according to an embodiment of the present invention;

[0044] Figure 17 is a schematic structural diagram of the other side of the lower cover plate according to an embodiment of the present invention;

[0045] Figure 181 is a schematic structural diagram of a side frame strip according to an embodiment of the present invention;

[0046] Figure 19 yes Figure 18 A partial enlarged view of the middle C position;

[0047] Figure 20 This is a schematic structural diagram of a handle according to an embodiment of the present invention;

[0048] Figure 21 1 is a schematic structural diagram of a hollow glass assembly according to an embodiment of the present invention;

[0049] Figure 22 1 is a schematic structural diagram of a door seal according to an embodiment of the present invention;

[0050] Figure 23 2 is a cross-sectional view of a door seal according to an embodiment of the present invention.

[0051] In the picture:

[0052] 1. Upper end cover; 2. Upper cover plate; 3. Lower end cover; 4. Lower cover plate; 5. Side frame strip; 501. Mounting hole; 6. Door seal; 601. Third connecting part; 7. Insulating glass assembly; 701. Inner glass; 702. Outer glass; 703. Sealing frame; 8. Corner code; 9. First groove; 901. Card strip; 902. Bar-shaped through hole; 10. Second groove; 11. First connecting part; 12. First connecting port; 13. Second connecting part; 14. Second connecting port; 15. Connecting groove; 16. Handle; 17. Door lock assembly; 1701. Fixing plate; 1702. Door lock plate; 18. Door shaft connecting assembly; 1801. Door shaft sleeve; 1802. Limiting plate; 19. Mounting groove; 20. First fixing column; 21. Second fixing column; 22. Buckle; 23. Card slot. DETAILED DESCRIPTION

[0053] The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0054] The following describes the embodiments of the present disclosure through specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of the embodiments. The present disclosure can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

[0055] Reference Figure 1-Figure 23 An embodiment of the present invention provides a refrigerator door combined with injection molding and extrusion parts, characterized in that it includes: an upper frame assembly, a lower frame assembly, a side frame strip 5, an insulating glass assembly 7 and a door seal 6; the upper frame assembly includes: an upper end cover 1 and an upper cover plate 2, the lower frame assembly includes: a lower end cover 3 and a lower cover plate 4, the upper end cover 1, the upper cover plate 2, the lower end cover 3 and the lower cover plate 4 are injection molding parts, the side frame strip 5 is an extrusion part, the upper cover plate 2 is detachably connected to the back of the upper end cover 1, the lower cover plate 4 is detachably connected to the back of the lower end cover 3, and L-shaped corner brackets 8 are detachably connected between the two ends of the upper end cover 1 and the upper cover plate 2, and L-shaped corner brackets 8 are detachably connected between the two ends of the lower end cover 3 and the lower cover plate 4. The components are detachably connected to the upper ends of the side frame strips 5 on both sides through the corner codes 8 at both ends, and the lower frame components are detachably connected to the lower ends of the side frame strips 5 on both sides through the corner codes 8 at both ends. The upper frame component, the lower frame component and the side frame strips 5 form a frame structure with a square cavity in the middle, and the hollow glass component 7 is embedded in the square cavity. The backs of the upper cover plate 2 and the lower cover plate 4 are respectively provided with a first groove 9, and the two sides of the first groove 9 are staggered with raised card strips 901 along the length direction of the first groove 9. The back of the side frame strip 5 is provided with a second groove 10 with an inverted T-shaped cross-section, and the door seal 6 is detachably connected to the first groove 9 and the second groove 10 through a third connecting part 601 on one side.

[0056] The arrow-shaped cross-section of the third connecting portion 601 facilitates smooth installation of the door seal 6 within the first and second grooves 9, 10, securing it securely within them and preventing it from becoming loose. The first and second grooves 9, 10 are connected end-to-end in a square configuration, corresponding to the corresponding square configuration of the door seal 6, ensuring continuous and secure attachment of the door seal 6. Furthermore, to facilitate installation of the door seal 6 within the first and second grooves 9, 10, the upper edges of the second groove 10 may be provided with inclined chamfers. Similarly, the upper edges of the retaining strip 901 of the first groove 9 may also be provided with inclined chamfers.

[0057] In the above embodiment, by setting the upper end cover 1, the upper cover plate 2, the lower end cover 3 and the lower cover plate 4 as injection molded parts, and setting the side frame strips 5 as extruded parts, the assembly and matching structure of the injection molded parts and the extruded parts is adopted, so that the appearance of the refrigerator door is richer and more beautiful, meeting different appearance requirements; at the same time, the various structures are connected to each other in a coordinated manner, the structure is simple, stable, and easy to assemble; further, the upper cover plate 2 and the lower cover plate 4 in the injection molded part are respectively provided with a first groove 9, and the two sides of the first groove 9 are staggered with raised clips 901 along the length direction, which cleverly solves the problem of being unable to be demolded, realizes one-piece molding and demolding, and does not require additional door seal 6 fixing parts; and the staggered clips 901 can make the door seal 6 detachable and connected to the first groove 9, and at the same time make the door seal 6 more easily embedded in the first groove 9, which is convenient for installation and disassembly of the door seal 6.

[0058] In some embodiments, the bottom of the first groove 9 is provided with strip-shaped through holes 902 corresponding to the clip strips 901. The structural design of the strip-shaped through holes 902 enables smooth demoulding of the upper cover 2 and the lower cover 4 with staggered clip strips 901, which is simple and reasonable in structure.

[0059] Furthermore, the length of the clip 901 on one side of the first groove 9 is equal to the spacing between adjacent clips 901 on the other side. This structural design allows the first groove 9 to continuously and stably retain the third connecting portion 601 of the door seal 6 within the first groove 9, preventing the clips 901 on both sides from being too close or too sparse, which would cause inconvenient or unstable installation of the door seal 6.

[0060] In some embodiments, the two ends of the upper end cover 1 are L-shaped structures facing downward, and the two ends of the upper end cover 1 are respectively provided with L-shaped mounting grooves 19 matching the angle code 8, and the mounting grooves 19 at both ends of the upper end cover 1 are respectively fixed with the angle code 8 by screws, and one end corresponding to the angle code 8 is exposed at the end of the upper end cover 1, and the two ends of the lower end cover 3 are L-shaped structures facing upward, and the two ends of the lower end cover 3 are respectively provided with L-shaped mounting grooves 19 matching the angle code 8, and the mounting grooves 19 at both ends of the lower end cover 3 are respectively fixed with the angle code 8 by screws, and one end corresponding to the angle code 8 is exposed at the end of the lower end cover 3; the upper cover plate 2 is fixedly connected to the back of the upper end cover 1 by screws and a snap-fit ​​structure, and the lower cover plate 4 is fixedly connected to the back of the lower end cover 3 by screws and a snap-fit ​​structure.

[0061] Specifically, a vertical first fixing column 20 is distributed below the mounting groove 19, and a threaded hole with an open structure at the upper end is provided in the middle of the first fixing column 20. Positioning through holes corresponding to the first fixing column 20 are distributed on the surface of the corner code 8. The upper end height of the first fixing column 20 is flush with the upper end height of the positioning through hole. The first fixing column 20 cooperates with the mounting groove 19 to play a dual positioning and fixing role for the corner code 8, and is further fixed by screws to ensure that the corner code 8 is firmly fixed and easy to install and disassemble; buckles 22 are distributed on the sides of the upper cover plate 2 and the lower cover plate 4, and buckles 22 are distributed on the sides of the upper end cover 1 and the lower end cover 3, respectively. There is a card slot 23, and the upper cover plate 2 and the lower cover plate 4 are preliminarily fixed by the through-hole snap-fit ​​structure. A vertical second fixing column 21 is distributed on the back of the upper end cover 1 and the lower end cover 3. A threaded hole with an open structure at the upper end is provided in the middle of the second fixing column 21. The upper cover plate 2 and the lower cover plate 4 are distributed with positioning through holes corresponding to the second fixing column 21. The upper end height of the second fixing column 21 is higher than the lower end height of the positioning through holes of the upper cover plate 2 and the lower cover plate 4, so that the second fixing column 21 can play a role of positioning and fixing. The upper cover plate 2 and the lower cover plate 4 are fixedly connected to the second fixing columns 21 corresponding to the upper end cover 1 and the lower end cover 3 by screws.

[0062] The above embodiment makes the installation and disassembly of the upper frame assembly and the lower frame assembly convenient and simple, and has a simple and reasonable structure, a stable connection, and a high overall structural strength.

[0063] In some embodiments, the ends of the upper end cap 1 and the lower end cap 3 are respectively provided with a first connecting portion 11. The first connecting portion 11 and the correspondingly positioned corner bracket 8 form a first connecting group. The ends of the side frame bar 5 are respectively provided with a first connecting port 12 that matches the first connecting group. The upper frame assembly and the lower frame assembly are respectively inserted into the first connecting ports 12 at the ends of the side frame bar 5 through the first connecting groups, and the side frame bar 5 is fixedly connected to the corner bracket 8 by screws. The matching structure of the first connecting group and the first connecting port 12 serves as a positioning function, facilitating accurate and quick screw installation; thus, the upper frame assembly and the lower frame assembly can be firmly connected to the side frame bar 5, and installation and disassembly are convenient and simple.

[0064] In some embodiments, the ends of the upper end cap 1 and the lower end cap 3 are each provided with a second connecting portion 13, and the ends of the side frame strips 5 are each provided with a second connecting port 14 that matches the second connecting portion 13. The second connecting portions 13 of both the upper frame assembly and the lower frame assembly are respectively inserted into the second connecting ports 14 at both ends of the side frame strips 5. Specifically, the second connecting portion 13 and the second connecting port 14 have a triangular structure; the matching structure of the second connecting portion 13 and the second connecting port 14 further improves the connection stability between the upper frame assembly and the lower frame assembly and the side frame strips 5, prevents loose connections, and ensures the stability and high structural strength of the overall structure of the refrigerator door.

[0065] In some embodiments, the insulating glass assembly 7 includes: an inner layer of glass 701, an outer layer of glass 702, and a sealing frame 703. The sealing frame 703 is a square frame structure. The outer layer of glass 702 and the inner layer of glass 701 are fixedly connected to the front and back of the sealing frame 703 respectively. The upper frame assembly, the lower frame assembly, and the side frame strip 5 are provided with a connecting groove 15 that matches the sealing frame 703 on one side near the center of the square cavity. The sealing frame 703 is respectively stuck in the connecting grooves 15 on all sides. The double-layer structure design of the insulating glass assembly 7 can effectively play a role in heat insulation, and the matching structure of the connecting groove 15 and the sealing frame 703 makes the assembly of the insulating glass assembly 7 more convenient and simple, without the need for other fasteners for fixing, and is easy to install and disassemble, and the structure is stable. Furthermore, to improve the stability of the insulating glass assembly 7 and the airtightness of the refrigerator door, glass glue can be applied in the connecting groove 15.

[0066] In some embodiments, the side frame strip 5 on one side is detachably connected to a handle 16, and the lower end of the lower frame assembly close to the handle 16 is detachably connected to a door lock assembly 17, and the lower end of the lower frame assembly and the upper frame assembly are detachably connected to a door shaft connection assembly 18 away from the handle 16. Specifically, a mounting hole 501 is provided on the side surface of the side frame strip 5 on one side, and a buckle 22 is provided on the side surface of the handle 16. The handle 16 is fixedly connected to the mounting hole 501 of the side frame strip 5 by the buckle 22, so that the handle 16 can be detachably connected, and assembly and disassembly are simple and convenient; the door lock assembly 17 includes: a fixing plate 1701 and a door lock plate 1702. The fixing plate 1701 is fixedly connected to the lower end cover 3 close to the handle 16 by screws, and one end of the door lock plate 1702 is passed through The door lock plate 1702 is fixedly connected to the lower end cover 3 through a fixing plate 1701, and a lock hole is provided at the other end of the door lock plate 1702; the door lock plate 1702 is used to lock the refrigerator door; the door shaft connection assembly 18 includes a door shaft sleeve 1801 and a limiting plate 1802, the limiting plate 1802 is fixedly connected to the upper end cover 1 and the lower end cover 3 by screws, and the door shaft sleeve 1801 is embedded in the upper end cover 1 and the lower end cover 3 through the limiting plate 1802. The door shaft sleeve 1801 is used to rotate the refrigerator door to connect to the refrigerator. The structural design of this embodiment allows the handle 16, the door lock assembly 17 and the door shaft connection assembly 18 to be installed and disassembled, and the assembly is convenient and simple, and the structure is stable. The manufacturer or user can flexibly adjust the positions of the handle 16 and the door lock assembly 17 on both sides of the door shaft connection assembly 18 according to the opening direction of the refrigerator door to meet the door opening requirements on different sides, and has a wide range of applications.

[0067] An embodiment of the present application further provides a refrigerator, which includes the refrigerator door composed of injection molded parts and extruded parts as described in any of the above embodiments.

[0068] The present application also provides a method for assembling a refrigerator door composed of an injection molded part and an extruded part, comprising the following steps:

[0069] Step S1: Angle brackets 8 are fixed to both ends of the upper end cover 1; specifically, the angle brackets 8 are positioned and fixed through the mounting grooves 19 and the first fixing columns 20 at both ends, and then tightened into the first fixing columns 20 by screws, thereby locking the angle brackets 8 into the mounting grooves 19 at both ends of the upper end cover 1.

[0070] Step S2: Fix the upper cover plate 2 to the back of the upper end cover 1 with angle brackets 8 at both ends to form an upper frame assembly, and the angle brackets 8 in the upper frame assembly are located between the upper cover plate 2 and the upper end cover 1; specifically, the upper cover plate 2 is initially fixed to the back of the upper end cover 1 through the matching structure of the buckle 22 and the slot 23, and then the screws are tightened into the second fixing column 21, and the upper cover plate 2 is further firmly connected to the back of the upper end cover 1 to complete the assembly of the upper frame assembly.

[0071] Step S3: Angle brackets 8 are fixed to both ends of the lower end cover 3; specifically, the angle brackets 8 are positioned and fixed by the mounting grooves 19 and the first fixing columns 20 at both ends, and then tightened into the first fixing columns 20 by screws, thereby locking the angle brackets 8 into the mounting grooves 19 at both ends of the lower end cover 3.

[0072] Step S4: Fix the lower cover plate 4 to the back of the lower end cover 3 with angle brackets 8 at both ends to form a lower frame assembly, and the angle brackets 8 in the lower frame assembly are located between the lower cover plate 4 and the lower end cover 3; specifically, the lower cover plate 4 is initially fixed to the back of the lower end cover 3 through the matching structure of the buckle 22 and the slot 23, and then the screws are tightened into the second fixing column 21, and the lower cover plate 4 is further firmly connected to the back of the lower end cover 3 to complete the assembly of the lower frame assembly.

[0073] Step S5: placing the insulating glass assembly 7 between the side frame bars 5 on both sides; specifically, embedding both sides of the sealing frame 703 of the insulating glass assembly 7 into the connecting grooves 15 of the side frame bars 5 respectively.

[0074] Step S6: The upper frame assembly is fixedly connected to the upper ends of the side frame strips 5 on both sides through the corner codes 8 at both ends; specifically, the first connection groups consisting of the first connection parts 11 and the corner codes 8 at both ends of the upper frame assembly are inserted into the first connection ports 12 at the upper ends of the side frame strips 5 on both sides, and at the same time, the second connection parts 13 at both ends of the upper frame assembly are inserted into the second connection ports 14 at the upper ends of the side frame strips 5 on both sides, and finally, the upper ends of the side frame strips 5 are fixedly connected to the corner codes 8 of the upper frame assembly by screws.

[0075] Step S7: The lower frame assembly is fixedly connected to the lower ends of the side frame strips 5 on both sides through the angle codes 8 at both ends; specifically, the first connection groups consisting of the first connection parts 11 and the angle codes 8 at both ends of the lower frame assembly are inserted into the first connection ports 12 at the lower ends of the side frame strips 5 on both sides, and at the same time, the second connection parts 13 at both ends of the lower frame assembly are inserted into the second connection ports 14 at the lower ends of the side frame strips 5 on both sides, and finally, the lower ends of the side frame strips 5 are fixedly connected to the angle codes 8 of the lower frame assembly by screws.

[0076] Step S8: The insulating glass assembly 7 is embedded in the square cavity surrounded by the upper frame assembly, the lower frame assembly and the side frame strips 5; the insulating glass assembly 7 is respectively embedded in the connecting grooves 15 of the upper frame assembly, the lower frame assembly and the side frame strips 5 through the sealing frame 703. When it is necessary to improve the stability of the insulating glass assembly 7 and the airtightness of the refrigerator door, glass glue can be applied in each connecting groove 15 or around the sealing frame 703 before installing the insulating glass assembly 7.

[0077] Step S9: The door seal 6 is fixedly connected to the first groove 9 of the upper frame assembly, the first groove 9 of the lower frame assembly and the second groove 10 of the side frame strips 5 on both sides; specifically, the arrow-shaped third connecting portion 601 of the door seal 6 is pressed into the first groove 9 and the second groove 10 respectively to complete the fixation of the door seal 6.

[0078] Step S10: completing the assembly of the refrigerator door.

[0079] In the description of the present invention, it should be understood that the terms "middle", "length", "upper", "lower", "front", "back", "vertical", "horizontal", "inner", "outer", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0080] In the present invention, unless otherwise expressly specified or limited, a first feature "on" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. "Multiple" means at least two, such as two or three, unless otherwise expressly specified or limited.

[0081] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0082] The above is only for explaining the embodiments of the present invention and is not intended to limit the present invention. For those skilled in the art, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present invention without creative work should be included in the scope of protection of the present invention.

Claims

1. A refrigerator door composed of injection molded parts and extruded parts, characterized in that: include: Upper frame assembly, lower frame assembly, side frame strips, insulating glass assembly and door seals; The upper frame assembly includes: an upper end cover and an upper cover plate, and the lower frame assembly includes: a lower end cover and a lower cover plate. The upper end cover, the upper cover plate, the lower end cover and the lower cover plate are injection molded parts, and the side frame strips are extruded parts. The upper cover plate is detachably connected to the back of the upper end cover, and the lower cover plate is detachably connected to the back of the lower end cover. L-shaped corner codes are detachably connected between the two ends of the upper end cover and the upper cover plate, and L-shaped corner codes are detachably connected between the two ends of the lower end cover and the lower cover plate. The upper frame assembly is detachably connected to the upper ends of the side frame strips on both sides through the corner codes at both ends, and the lower frame assembly is detachably connected to the side frame strips on both sides through the corner codes at both ends. At the lower end of the frame bar, the upper frame assembly, the lower frame assembly and the side frame bar form a frame structure with a square cavity in the middle, and a connecting groove is provided on one side of the upper frame assembly, the lower frame assembly and the side frame bar close to the center of the square cavity, the insulating glass assembly is clamped in the square cavity, and the backs of the upper cover plate and the lower cover plate are respectively provided with a first groove, and raised clips are distributed on both sides of the first groove at intervals along the length direction of the first groove, and strip-shaped through holes corresponding to the clips are distributed at the bottom of the first groove, and a second groove with an inverted T-shaped cross-section is provided on the back of the side frame bar, and the door seal is detachably connected to the first groove and the second groove respectively through a third connecting part on one side; Particularly, the ends of the upper end cover and the lower end cover are respectively provided with a first connecting portion, the first connecting portion extends from one end of the angle code, the first connecting portion and the angle code at the corresponding position form a first connecting group, and the two ends of the side frame strip are respectively provided with a first connecting port matching the first connecting group, the upper frame assembly and the lower frame assembly are respectively inserted into the first connecting ports at both ends of the side frame strip through the first connecting group, and the side frame strip is fixedly connected to the angle code by screws.

2. The injection molded and extruded combined freezer door according to claim 1, characterized in that: The length of the clamping strip on one side of the first groove is equal to the distance between adjacent clamping strips on the other side.

3. The injection molded and extruded combined freezer door according to claim 1, characterized in that: The two ends of the upper end cover are L-shaped structures facing downward, and the two ends of the upper end cover are respectively provided with L-shaped mounting grooves matching the angle code, and the mounting grooves at both ends of the upper end cover are respectively fixed with the angle code by screws, and one end corresponding to the angle code is exposed at the end of the upper end cover, and the two ends of the lower end cover are L-shaped structures facing upward, and the two ends of the lower end cover are respectively provided with L-shaped mounting grooves matching the angle code, and the mounting grooves at both ends of the lower end cover are respectively fixed with the angle code by screws, and one end corresponding to the angle code is exposed at the end of the lower end cover; the upper cover plate is fixedly connected to the back of the upper end cover by screws and a snap-fit ​​structure, and the lower cover plate is fixedly connected to the back of the lower end cover by screws and a snap-fit ​​structure.

4. The injection molded and extruded combined freezer door according to claim 1, characterized in that: The ends of the upper end cover and the lower end cover are respectively provided with a second connecting portion, and the two ends of the side frame bar are respectively provided with a second connecting port matching the second connecting portion, and the second connecting portions of the upper frame assembly and the lower frame assembly are respectively inserted into the second connecting ports at the two ends of the side frame bar.

5. The injection molded and extruded combined freezer door according to claim 1, characterized in that: The insulating glass assembly includes: an inner layer of glass, an outer layer of glass and a sealing frame. The sealing frame is a square frame structure. The front and back sides of the sealing frame are respectively fixedly connected to the outer layer of glass and the inner layer of glass. The upper frame assembly, the lower frame assembly and the side frame strips are provided with connecting grooves matching the sealing frame on one side close to the center of the square cavity. The sealing frame is respectively stuck in the connecting grooves on all four sides.

6. The injection molded and extruded combined freezer door according to claim 1, characterized in that: The side frame strip on one side is detachably connected to a handle, the lower frame assembly is detachably connected to a door lock assembly below one end close to the handle, and the lower frame assembly and the upper frame assembly are both detachably connected to a door shaft connection assembly at one end away from the handle.

7. A refrigerator, characterized in that: The refrigerator comprises the refrigerator door composed of an injection molded part and an extruded part according to any one of claims 1 to 6.

8. A method for assembling a freezer door composed of an injection molded part and an extruded part according to any one of claims 1 to 6, characterized in that: The following steps are involved: Fix the two ends of the upper end cover with angle brackets respectively; The upper cover plate is fixedly connected to the back of the upper end cover with angle brackets at both ends to form an upper frame assembly, and the angle brackets in the upper frame assembly are located between the upper cover plate and the upper end cover; Fix the two ends of the lower end cover with angle brackets respectively; The lower cover plate is fixedly connected to the back of the lower end cover with angle brackets at both ends to form a lower frame assembly, and the angle brackets in the lower frame assembly are located between the lower cover plate and the lower end cover; Place the insulating glass assembly between the side frame strips on both sides; The upper frame assembly is fixedly connected to the upper ends of the side frame bars on both sides through the angle brackets at both ends; The lower frame assembly is fixedly connected to the lower ends of the side frame strips on both sides through the angle brackets at both ends; The insulating glass assembly is embedded in the square cavity surrounded by the upper frame assembly, the lower frame assembly and the side frame strips; The door seal strips are distributed and fixedly connected in the first groove of the upper frame assembly, the first groove of the lower frame assembly and the second grooves of the side frame strips on both sides; Complete the assembly of the freezer door.

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