Composite ultralow cold bridge boxboard structure

Abstract

The utility model relates to the technical field of ultralow cold bridge boxboard structures, and discloses a composite ultralow cold bridge boxboard structure which comprises an inner board and an outer board, a polyurethane foaming layer is arranged between the inner board and the outer board, the length of the outer board is larger than that of the inner board, the outer board and the inner board are connected through a boxboard frame, and the outer board and the inner board are connected through the boxboard frame. The box plate frame comprises an L-shaped outer connecting part connected with the outer side of the outer plate, an inner connecting part connected with the inner side of the inner plate and two ends connected with the outer connecting part and the inner connecting part respectively. According to the utility model, through the arrangement of the boxboard frames, when in use and when the boxboards are connected, the alignment of the through holes can be realized in a way that the bent connecting parts of the boxboard frames in the two boxboards are matched and butted, and then the fixation of the two boxboards is realized in a way that the boxboard connecting screws penetrate into the boxboards, so that compared with the prior art, the boxboard frame has the advantages that the structure is simple, the cost is low, and the production efficiency is high. According to the boxboard structure, the assembly structure of the boxboard can be unified, the production cost can be effectively reduced, and the assembly efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ultra-low cold bridge box plate structures, in particular to a composite ultra-low cold bridge box plate structure. Background Art

[0002] At present, the traditional air conditioning box wall panels mainly include metal outer wall panels and metal inner wall panels. The inner and outer wall panels are directly connected after being bent and formed, and the middle is filled with insulation materials. In the prior art, the anti-cold bridge technology of air conditioning units usually adopts various anti-cold bridge rubber sealing strips between the aluminum alloy outer frame and the box wall panels. This design scheme still has some shortcomings, because the inner and outer metal wall panels are prone to form cold bridges at the junction, resulting in energy leakage, and the rubber sealing strips pasted between the aluminum alloy outer frame and the box wall panels often lose the anti-cold bridge function due to installation and material problems, resulting in energy waste.

[0003] The existing patent (publication number CN 213657083 U) discloses an air-conditioning box wall panel structure for preventing cold bridges, which relates to the technical field of comfort air-conditioning units and purification air-conditioning units. The utility model includes an inner wall panel, an outer wall panel and a filling material. Its structural feature is that a concave cold-bridge structural profile is provided at the connection between the inner wall panel and the outer wall panel. The cold-bridge structural profile is provided with outward notches on the inside and outside, and the outer wall panel and the inner wall panel are provided with a bent edge inserted into the notch at one end close to the cold-bridge structural profile, and the filling material is injected into the internal cavity formed by the inner wall panel, the outer wall panel and the cold-bridge structural profile. Compared with the prior art, the utility model can avoid energy leakage on the side of the box wall panel and play a role in preventing cold bridges; at the same time, the wall panel is simple to process and easy to install and maintain.

[0004] However, the existing technology solves the cold bridge problem by adding cold bridge breaking structural profiles. However, when the box panels are connected, connection structures of different shapes are required for installation, resulting in high production costs for the box panels (different connection structures require different production equipment for manufacturing, resulting in increased costs). Utility Model Content

[0005] The utility model aims to solve the problems existing in the prior art and proposes a composite ultra-low cold bridge box plate structure.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A composite ultra-low cold bridge box panel structure comprises an inner panel and an outer panel, a polyurethane foam layer is arranged between the inner panel and the outer panel, the length of the outer panel is longer than the length of the inner panel, the outer panel and the inner panel are connected by a box panel frame, the box panel frame comprises an L-shaped outer connecting portion connected to the outer side of the outer panel, an inner connecting portion connected to the inner side of the inner panel, and an L-shaped bent connecting portion whose two ends are respectively connected to the outer connecting portion and the inner connecting portion, the bottom and the outer side of the outer connecting portion are provided with perforations, and the perforations are used to insert the box panel connecting screws.

[0008] Preferably, the inner connecting portion is connected to the inner side of the inner panel through a first foam double-sided adhesive layer.

[0009] Preferably, an L-shaped embedding seat is provided on the inner side of the external connection part, an embedding groove is provided at one end of the bending connection part connected to the external connection part, and an embedded sheet metal is embedded in the recess of the embedding seat. The embedded sheet metal is L-shaped, and the bottom side of the embedded sheet metal is abutted against the inner wall of the bottom of the external connection part, and one end of the bottom of the embedded sheet metal is embedded in the embedding groove.

[0010] Preferably, a first polyethylene PE sealing strip is provided on a side of the bent connection portion away from the corresponding polyurethane foam layer, and a second polyethylene PE sealing strip is provided on the bottom of the external connection portion.

[0011] Preferably, the box board frame is made of PVC.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model, through the box board frame, when the box boards are used and connected, the perforations can be aligned by matching and docking the bent connecting parts of the box board frames in the two box boards, and then the two box boards can be fixed by inserting connecting screws into the box boards. Compared with the prior art, the box board structure of the utility model can unify the assembly structure of the box boards, which can effectively reduce production costs and improve assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a box panel connection schematic diagram of a composite ultra-low cold bridge box panel structure proposed by the utility model.

[0015] In the figure: 1. Inner panel; 2. Outer panel; 3. Polyurethane foam layer; 4. Box panel frame; 5. External connection part; 6. Internal connection part; 7. Bending connection part; 8. Embedded seat; 9. Embedded groove; 10. Perforation; 11. Box panel connecting screws; 12. First foam double-sided adhesive layer; 14. Embedded sheet metal; 15. First polyethylene PE sealing strip; 16. Second polyethylene PE sealing strip. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0017] Reference Figure 1 A composite ultra-low cold bridge box panel structure comprises an inner panel 1 and an outer panel 2, a polyurethane foam layer 3 is arranged between the inner panel 1 and the outer panel 2, the length of the outer panel 2 is longer than the length of the inner panel 1, the outer panel 2 and the inner panel 1 are connected by a box panel frame 4, the box panel frame 4 comprises an L-shaped outer connecting portion 5 connected to the outer side of the outer panel 2, an inner connecting portion 6 connected to the inner side of the inner panel 1, and an L-shaped bending connecting portion 7 at both ends respectively connected to the outer connecting portion 5 and the inner connecting portion 6, the above structural design can form a bulge (such as Figure 1 As shown in the figure), the bottom and the outer side of the outer connecting portion 5 are provided with through holes 10, and the through holes 10 are used to insert the box board connecting screws 11.

[0018] When the box panels of the present box panel structure are connected, the perforations 10 can be aligned with each other by matching the bent connection parts 7 of the box panel frames 4 of the two box panels, and then the two box panels can be fixed by inserting the box panel connecting screws 11 (after the two box panels are butt-jointed, the box panel connecting screws 11 are inserted from the perforation 10 on the side of one box panel ( Figure 1 The bottom box board) is inserted into the through hole 10 at the bottom of another box board ( Figure 1 Compared with the prior art, the box panel structure of the present invention can unify the assembly structure of the box panels, which can effectively reduce production costs and improve assembly efficiency.

[0019] In this embodiment, the inner connection part 6 is connected to the inner side of the inner panel 1 through the first foam double-sided adhesive layer 12, and the connection process between the inner connection part 6 and the inner panel 1 is completed by gluing.

[0020] In this embodiment, an L-shaped embedding seat 8 is provided on the inner side of the external connection part 5, and an embedding groove 9 is provided at one end of the bending connection part 7 connected to the external connection part 5. An embedded sheet metal 14 is embedded in the recess of the embedding seat 8. The embedded sheet metal 14 is L-shaped, and the bottom side of the embedded sheet metal 14 is abutted against the inner wall of the bottom of the external connection part 5, and one end of the bottom of the embedded sheet metal 14 is embedded in the embedding groove 9. The embedding groove 9 and the embedding groove 9 can embed the embedded sheet metal 14 in the box board frame 4, so as to ensure the strength of the box board frame 4.

[0021] In this embodiment, a first polyethylene PE sealing strip 15 is provided on the side of the bent connection part 7 away from the corresponding polyurethane foam layer 3, and a second polyethylene PE sealing strip 16 is provided at the bottom of the external connection part 5. The setting of the first polyethylene PE sealing strip 15 and the second polyethylene PE sealing strip 16 can meet the sealing requirements of the connection between the two box panels.

[0022] In this embodiment, the material of the box panel frame 4 is PVC, and the sealing and heat insulation properties of PVC prevent the cold bridge problem.

[0023] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A composite ultra-low cold bridge box panel structure, comprising an inner panel and an outer panel, wherein a polyurethane foam layer is disposed between the inner panel and the outer panel, characterized in that: The length of the outer panel is longer than that of the inner panel, and the outer panel and the inner panel are connected via a box panel frame, and the box panel frame includes an L-shaped outer connecting portion connected to the outer side of the outer panel, an inner connecting portion connected to the inner side of the inner panel, and an L-shaped bent connecting portion whose two ends are respectively connected to the outer connecting portion and the inner connecting portion, and the bottom and outer side of the outer connecting portion are provided with through holes, and the through holes are used to insert the box panel connecting screws.

2. The composite ultra-low cold bridge box panel structure according to claim 1 is characterized in that: The inner connecting portion is connected to the inner side of the inner plate through a first foam double-sided adhesive layer.

3. The composite ultra-low cold bridge box panel structure according to claim 1 is characterized in that: An L-shaped embedding seat is provided on the inner side of the external connection part, an embedding groove is provided at one end of the bending connection part connected to the external connection part, and an embedded sheet metal is embedded in the recess of the embedding seat. The embedded sheet metal is L-shaped, and the bottom side of the embedded sheet metal is against the inner wall of the bottom of the external connection part, and one end of the bottom of the embedded sheet metal is embedded in the embedding groove.

4. The composite ultra-low cold bridge box panel structure according to claim 2 is characterized in that: A first polyethylene PE sealing strip is arranged on a side of the bent connection portion away from the corresponding polyurethane foam layer, and a second polyethylene PE sealing strip is arranged on the bottom of the external connection portion.

5. The composite ultra-low cold bridge box panel structure according to claim 1 is characterized in that: The material of the box board frame is PVC.

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