Door body

Abstract

The invention particularly relates to a door body which comprises a door body, a foaming cavity for foaming a foaming material is formed in the inner side of the door body, and the door body comprises a plurality of exhaust holes communicating the foaming cavity with the outer side of the door body and extrusion deformation structures arranged adjacent to the exhaust holes; the extrusion deformation structure comprises a deformation groove and a partition wall, wherein the deformation groove is provided with an opening communicated with the foaming cavity, the partition wall is arranged between the deformation groove and the exhaust hole, and the partition wall is close to the exhaust hole in the direction from the position away from the foaming cavity to the position close to the foaming cavity. According to the door body, the foaming cavity communicates with the outer side of the door body through the multiple exhaust holes, the partition wall is close to the exhaust holes in the direction from the position away from the foaming cavity to the position close to the foaming cavity, and the foaming material expands in the deformation groove to apply extrusion force to the partition wall, so that the partition wall is extruded and deformed towards the exhaust holes; and the exhaust holes become smaller due to the deformation of the partition walls, so that the exhaust pipe has the advantages of cost reduction, convenience in foaming, neat appearance and convenience in processing.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration, and particularly to the door body of a refrigeration device. Background Art

[0002] Generally, the foaming material of the door body of a refrigeration device is polyurethane, and the foaming process is divided into three stages: the milky white process, the gelling process, and the curing process. In addition, after foaming, it is necessary to discharge the air inside the door body. At present, vent holes for exhaust are left during the foaming of the door body, and they are basically round holes with diameters ranging from φ0.5mm to φ3mm. And it is necessary to stick breathable tape for sealing. The breathable tape is expensive and will increase the overall cost of the machine. Therefore, it is necessary to study a door body to solve the above problems. Summary of the Invention

[0003] The present invention aims to provide a door body that reduces costs, is convenient for foaming, has a neat appearance, and is conducive to processing.

[0004] To achieve the above objectives, an embodiment of the present invention provides a door body, including a door body main body. A foaming cavity for the foaming material to foam is formed inside the door body main body. The door body includes a plurality of exhaust holes communicating the foaming cavity with the outside of the door body main body, and an extrusion deformation structure arranged adjacent to the exhaust holes;

[0005] The extrusion deformation structure includes a deformation groove with an opening communicating with the foaming cavity, and a partition wall arranged between the deformation groove and the exhaust hole. The partition wall is arranged to approach the exhaust hole in the direction from far away from the foaming cavity to close to the foaming cavity.

[0006] As a further improvement of an embodiment of the present invention, the deformation groove becomes narrower from wide in the direction from close to the foaming cavity to far away from the foaming cavity, and the exhaust hole becomes wider from narrow in the direction from close to the foaming cavity to far away from the foaming cavity.

[0007] As a further improvement of an embodiment of the present invention, the extrusion deformation structure is arranged between two adjacent exhaust holes.

[0008] As a further improvement of an embodiment of the present invention, a deformation groove is defined by two symmetrically arranged partition walls. The sizes and shapes of the exhaust holes adjacent to the two symmetrically arranged partition walls are the same.

[0009] As a further improvement of an embodiment of the present invention, the extrusion deformation structure is a conical structure, and the deformation groove is a V-shaped groove with the opening facing the foaming cavity.

[0010] As a further improvement of an embodiment of the present invention, the exhaust hole has a first port close to the foaming cavity, and the width range of the first port is 0.35mm to 1mm.

[0011] As a further improvement of one embodiment of the present invention, the exhaust hole has a first port close to the foaming cavity, and the width of the first port is 0.35 mm.

[0012] As a further improvement of one embodiment of the present invention, the thickness of the partition wall is 0.5 mm to 1.2 mm.

[0013] As a further improvement of one embodiment of the present invention, the thickness of the partition wall is 0.5 mm.

[0014] As a further improvement of one embodiment of the present invention, the door body is recessed inward to form a groove, and the aforementioned exhaust hole is formed in the groove.

[0015] Compared with the prior art, the beneficial effect of the present invention is that the door body provided by the present invention connects the foaming cavity and the outside of the door body through a plurality of exhaust holes, and the extrusion deformation structure provided for adjacent exhaust holes includes a deformation groove having an opening connected to the foaming cavity, and a partition wall provided between the deformation groove and the exhaust hole. The partition wall is provided in a direction away from the foaming cavity and close to the foaming cavity, and the foam material expands in the deformation groove and applies an extrusion force to the partition wall, so that the partition wall is squeezed and deformed toward the exhaust hole. The exhaust hole becomes smaller due to the deformation of the partition wall, so that the foam material cannot overflow outward through the exhaust hole or the amount of foam material overflowed is less, thereby avoiding the foam material overflowing from the surface of the door body. At the same time, the exhaust hole still has a gap, and air can still be discharged. The exhaust hole size is reduced, so that the foam material cannot overflow, and it also has the function of exhaust, thereby eliminating the setting of the breathable tape, and has the advantages of reducing cost, facilitating foaming, neat appearance, and being easy to process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the structure of the door body of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the door body of the present invention as viewed from the rear;

[0018] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure in the AA direction;

[0019] Figure 4 for Figure 3 Schematic diagram of the enlarged structure of area B.

[0020] In the figure: 10, door body; 11, foaming chamber; 12, exhaust hole; 121, first port; 122, second port; 13, deformation groove; 14, partition wall; 15, groove. DETAILED DESCRIPTION

[0021] The following describes in detail the preferred embodiments of the present invention with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0022] The terms "comprising" and "having" in the present invention and any variations thereof are intended to cover non-exclusive inclusion. The mention of "embodiment" in this article means that the specific features, structures or characteristics described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0023] Combined with Figure 1 As shown, the present invention mainly relates to: a door body, which includes a door body 10, and a foaming cavity 11 for foaming the foaming material is formed inside the door body 10. The door body 10 in this embodiment is a door body trim.

[0024] Combined with Figures 2 to 4 As shown, in this embodiment, the door body includes a plurality of exhaust holes 12 communicating the foaming cavity 11 with the outside of the door body 10, and a squeezing deformation structure arranged adjacent to the exhaust holes 12. The exhaust holes 12 discharge the gas in the foaming cavity 11 during the foaming process to the outside of the door body 10. The plurality of exhaust holes 12 are arranged at intervals. Both ends of the exhaust holes 12 communicate with the foaming cavity 11 and the outside of the door body respectively. Preferably, the sizes and shapes of the plurality of exhaust holes 12 are the same.

[0025] The squeezing deformation structure includes a deformation groove 13 with an opening communicating with the foaming cavity 11, and a partition wall 14 arranged between the deformation groove 13 and the exhaust hole 12. The partition wall 14 is arranged to approach the exhaust hole 12 in the direction from far away from the foaming cavity 11 to close to the foaming cavity 11. That is to say, the partition wall 14 has a tendency to squeeze the exhaust hole 12.

[0026] During foaming, the foaming material enters the deformation groove 13 through the opening of the deformation groove 13 and expands in the deformation groove 13 to apply a squeezing force to the partition wall 14, so that the partition wall 14 is deformed and squeezed towards the exhaust hole 12. The exhaust hole 12 becomes smaller due to the deformation of the partition wall 14, so that the foaming material cannot overflow outward through the exhaust hole 12 or less foaming material overflows, avoiding the foaming rate from overflowing on the surface of the door body 10. At the same time, there is still a gap in the exhaust hole 12, and air can still be discharged. When a small amount of foaming material accumulates at the exhaust hole 12, the worker can manually remove the overflow material.

[0027] Furthermore, the deformation groove 13 becomes narrower from the direction close to the foaming cavity 11 to the direction far away from the foaming cavity 11, and the exhaust hole 12 becomes wider from the direction close to the foaming cavity 11 to the direction far away from the foaming cavity 11.

[0028] Specifically, the opening of the deformation groove 13 is arranged close to the foaming cavity 11. The deformation groove 13 has an end portion that is close to the outer side of the door body and is arranged opposite to the opening of the deformation groove 13. The foaming material expands at the opening of the deformation groove 13 to squeeze the area of the partition wall 14 adjacent to it, so that the opening where the exhaust hole 12 communicates with the foaming material becomes smaller, and it is more difficult for the foaming material to enter the exhaust hole 12.

[0029] Specifically, the deformation groove 13 gradually contracts in the direction from the inside to the outside, and the exhaust hole 12 gradually expands in the direction from the inside to the outside. The exhaust hole 12 has a first port 121 close to the foaming cavity 11 and a second port 122 far from the foaming cavity 11. The size of the first port 121 is smaller than that of the second port 122. The first port 121 becomes smaller due to the deformation of the partition wall 14, and it is more difficult for the foaming material to enter the exhaust hole 12 through the first port 121. However, there is still a gap in the exhaust hole 12, and air can still be discharged.

[0030] Furthermore, when a small amount of overflow material is discharged through the exhaust hole 12, the exhaust hole 12 has the function of storing the overflow material, and workers can manually remove the overflow material in the exhaust hole 12.

[0031] Furthermore, the extrusion deformation structure is arranged between two adjacent exhaust holes 12. There is an extrusion deformation structure arranged between two adjacent exhaust holes 12. A deformation groove 13 is arranged on one side of the partition wall 14, and an exhaust hole 12 is arranged on the other side of the partition wall 14.

[0032] Furthermore, a deformation groove 13 is defined by two symmetrically arranged partition walls 14, and the sizes and shapes of the exhaust holes 12 adjacent to the two symmetrically arranged partition walls 14 are the same. The two symmetrically arranged partition walls 14 can ensure that the extrusion force of the partition wall 14 on the exhaust hole 12 is the same, so as to ensure that the deformation degree of the exhaust hole 12 is the same, so as to ensure uniform exhaust in each area, and at the same time facilitate the unified setting of the size of the exhaust hole 12.

[0033] Furthermore, the extrusion deformation structure is a conical structure, and the deformation groove 13 is a V-shaped groove with an opening facing the foaming cavity 11. The end portion of the deformation groove 13 opposite to the opening of the deformation groove 13 is closed to prevent the foaming material in the deformation groove 13 from overflowing and improve the aesthetics of the door body. The exhaust hole 12 is a trumpet-shaped through-hole structure with the first port 121 smaller than the second port 122.

[0034] Further, the exhaust hole 12 has a first port 121 close to the foaming cavity 11, and the width of the first port 121 is 0.35 mm to 1 mm. The 0.35-mm gap is the minimum design size of the mold. If it is smaller, the mold strength cannot be guaranteed. At the same time, to meet the requirement of preventing the material from overflowing from the exhaust hole 12, 1 mm is the maximum size of the first port 121. The width of the first port 121 is set considering both the mold strength and the prevention of the foaming material from overflowing.

[0035] Further, the exhaust hole 12 has a first port 121 close to the foaming cavity 11, and the width of the first port 121 is 0.35 mm to prevent the mold from breaking due to insufficient strength. The 0.35-mm gap is the minimum design size of the mold. If it is smaller, the mold strength cannot be guaranteed. At the same time, the minimum size of 0.35 mm can also prevent the foaming material from overflowing to the greatest extent.

[0036] Further, the thickness of the partition wall 14 is 0.5 mm to 1.2 mm. After the foaming material accumulates in the deformation groove 13, the foaming material expands, and the partition wall 14 deforms to both sides. At this time, the exhaust hole 12 becomes smaller due to the deformation of the partition wall 14, preventing the foaming material from overflowing outward through the exhaust hole 12. The thickness of the partition wall 14 should consider both the magnitude of the deformation force and the strength requirement of the partition wall 14. When the thickness of the partition wall 14 is less than 0.5 mm, the partition wall 14 may break due to insufficient strength. When the thickness of the partition wall 14 is greater than 1.2 mm, the partition wall 14 is not easily deformed. Therefore, the thickness of the partition wall 14 is 0.5 mm to 1.2 mm.

[0037] Further, the thickness of the partition wall 14 is 0.5 mm. When the thickness of the partition wall 14 is 0.5 mm, it can not only ensure the strength of the partition wall 14 but also maximize the deformation force generated by the partition wall 14.

[0038] Further, the door body 10 is recessed inward to form a groove 15, and the aforementioned exhaust hole 12 is formed at the groove 15. The door body further includes a boss portion for forming the exhaust hole 12. The boss portion is cylindrical or other structures. The cross-section of the boss portion can be circular or square, and the boss portion is provided at a plurality of exhaust holes 12 spaced apart. The exhaust hole 12 is a strip-shaped structure.

[0039] The foaming method of the door body is as follows: the foaming material is injected into the foaming cavity and foamed, and the foaming material fills the deformation groove through the opening of the deformation groove; the foaming material accumulates in the deformation groove and expands to apply an extrusion force to the partition wall 14, so that the partition wall 14 is squeezed and deformed toward the exhaust hole 12. The exhaust hole 12 becomes smaller due to the deformation of the partition wall 14, so that the foaming material cannot overflow outward through the exhaust hole 12 or the overflowed foaming material is less, thereby avoiding the foaming rate overflow on the surface of the door body 10. At the same time, the exhaust hole 12 still has a gap, and air can still be discharged. The size of the exhaust hole 12 is reduced, so that the foaming material cannot overflow, and the exhaust function is also achieved, so that the setting of the breathable tape can be eliminated.

[0040] Compared to the prior art, the door body provided by the present invention connects the foaming cavity 11 with the outside of the door body through multiple exhaust holes 12. The extrusion deformation structure provided by adjacent exhaust holes 12 includes a deformation groove 13 having an opening connecting the foaming cavity 11 and a partition wall 14 provided between the deformation groove 13 and the exhaust hole 12. The partition wall 14 is arranged in a direction away from the foaming cavity 11 and closer to the foaming cavity 11, and the foam material expands in the deformation groove 13 and applies an extrusion force to the partition wall 14, so that the partition wall 14 is squeezed and deformed toward the exhaust hole 12. The exhaust hole 12 becomes smaller due to the deformation of the partition wall 14, so that the foam material cannot overflow outward through the exhaust hole 12, or the amount of foam material overflowed is small, thereby preventing the foam material from overflowing from the surface of the door body 10. At the same time, the exhaust hole 12 still has a gap, so that air can still be discharged. The exhaust hole 12 has the advantages of reducing the size of the exhaust hole 12, preventing the foam material from overflowing, and having the function of exhausting, thereby eliminating the need for the breathable tape, and has the advantages of reducing cost, facilitating foaming, neat appearance, and being easy to process.

[0041] In this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance, unless otherwise expressly specified or limited. The terms "mounted," "connected," and "connected" should be interpreted broadly. For example, "connected" can refer to a fixed connection, a detachable connection, or an integral connection; and can be directly connected or indirectly connected through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on specific circumstances.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A door body, comprising a door main body, wherein a foaming cavity for foaming material to foam is formed inside the door main body, and is characterized in that, The door body includes a plurality of exhaust holes communicating the foaming cavity with the outside of the door body, and a squeezing and deforming structure arranged adjacent to the exhaust holes; The squeezing and deforming structure includes a deformation groove with an opening communicating the foaming cavity, and a partition wall arranged between the deformation groove and the exhaust hole. The partition wall is arranged to approach the exhaust hole in the direction from far away from the foaming cavity to close to the foaming cavity.

2. The door body according to claim 1, characterized in that: The deformation groove becomes narrower from wide in the direction from close to the foaming cavity to far away from the foaming cavity, and the exhaust hole becomes wider from narrow in the direction from close to the foaming cavity to far away from the foaming cavity.

3. The door body according to claim 2, characterized in that: The squeezing and deforming structure is arranged between two adjacent exhaust holes.

4. The door body according to claim 3, characterized in that: One deformation groove is defined by two symmetrically arranged partition walls, and the sizes and shapes of the exhaust holes adjacent to the two symmetrically arranged partition walls are the same.

5. The door body according to claim 3, characterized in that: The squeezing and deforming structure is a conical structure, and the deformation groove is a V-shaped groove with the opening facing the foaming cavity.

6. The door body according to claim 1, characterized in that: The exhaust hole has a first port close to the foaming cavity, and the width range of the first port is 0.35 mm to 1 mm.

7. The door body according to claim 1, characterized in that: The exhaust hole has a first port close to the foaming cavity, and the width of the first port is 0.35 mm.

8. The door body according to claim 1, characterized in that: The thickness of the partition wall is 0.5 mm to 1.2 mm.

9. The door body according to claim 1, characterized in that: The thickness of the partition wall is 0.5 mm.

10. The door body according to claim 1, characterized in that: The door body is recessed inward to form a groove, and the aforementioned exhaust holes are formed at the groove.

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