CN219096843U

CN219096843U - PET core material framework refrigerator carriage plate

Info

Publication number: CN219096843U
Application number: CN202320076383.5U
Authority: CN
Inventors: 马腾跃; 鞠玉伟; 高庆; 孙文永; 郑耀强; 赵玉芳; 刘运金; 张国芹
Original assignee: Shandong Reza Special Purpose Vehicle Manufacturing Co ltd
Current assignee: Shandong Reza Special Purpose Vehicle Manufacturing Co ltd
Priority date: 2023-01-09
Filing date: 2023-01-09
Publication date: 2023-05-30
Anticipated expiration: 2033-01-09

Abstract

The utility model discloses a PET (polyethylene terephthalate) core material framework refrigerator carriage plate, which comprises a carriage plate framework, a heat-insulating core material, an inner skin and an outer skin, wherein the inner skin and the outer skin sandwich the carriage plate framework and the heat-insulating core material; the PET foam core material is adopted to replace the original square timber or plywood, the weight is obviously reduced, the light-weight requirement of the refrigerator car carriage plate is met, the strength of the PET core material is high, and the strength is not required to be sacrificed while the weight reduction is met; because the PET foam material is insulated, after the PET foam core is adopted, a cold bridge is effectively eliminated or minimized, the insulation performance is good, the heat preservation performance is good, and the refrigerating effect of the refrigerated vehicle can be effectively improved; the PET foam material has low water absorption, and can reduce the expansion and cracking of the carriage plate, improve the water resistance of the carriage plate and prolong the service life after replacing wood or plywood.

Description

PET core material framework refrigerator carriage plate

Technical Field

The utility model relates to the field of refrigerated vehicles, in particular to a PET core material framework refrigerated vehicle carriage plate.

Background

At present, the structure of current refrigerated vehicle compartment board in market includes railway carriage or compartment board skeleton, heat preservation core and with railway carriage or compartment board skeleton and heat preservation core intermediate layer including interior skin and outer skin, wherein the periphery of railway carriage or compartment board skeleton and inside strengthening rib adopt square timber or plywood, square timber or plywood and heat preservation material complex suppression to form, have following problem: 1. because the peripheral frame and the internal reinforcing ribs adopt square wood or plywood, the problem of heavy weight exists, and the weight reduction of the carriage plate cannot be realized; 2. the adoption of square timber or plywood has the defects that a thermal bridge (a thermal channel) exists, the heat preservation performance is poor, and the refrigerating effect of the refrigerated vehicle is affected; 3. the adoption of square timber or plywood is easy to absorb water, damp and expand, and cracks for a long time, so that the overall waterproof performance of the carriage plate is poor, and the service life is short.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide the PET core material framework refrigerator carriage plate which is light in weight, eliminates or minimizes a thermal bridge, and is good in overall strength and waterproof performance.

In order to solve the technical problems, the technical scheme of the utility model is as follows: the utility model provides a PET core skeleton fridge carriage board, includes carriage board skeleton, heat preservation core and will carriage board skeleton with heat preservation core intermediate layer is interior skin and outer skin, carriage board skeleton is including being located periphery and interconnect's frame board, wherein two relatively equipartition is connected with a plurality of strengthening ribs between the frame board, the frame board with the strengthening rib is the PET foam core.

As the preferable technical scheme, a plurality of accommodating grooves are uniformly arranged on one side surface of the heat preservation core material, which is connected with the inner skin, the reinforcing ribs are embedded into the corresponding accommodating grooves, and one side surface of the reinforcing ribs is also connected with the inner skin.

As the preferable technical scheme, the joint of the reinforcing rib, the heat preservation core material and the inner skin is provided with an adhesive layer.

As an optimized technical scheme, one side surface of the frame plate is exposed to serve as an adhesive surface, and the other side surfaces of the frame plate are respectively connected with the inner skin, the outer skin and the heat preservation core material.

As the preferable technical scheme, the joints of the frame plates and the inner skin, the outer skin and the heat preservation core material are all provided with glue layers.

As an optimal technical scheme, the joint of the outer skin, the inner skin and the heat preservation core material is provided with a glue layer.

As an optimal technical scheme, the heat-insulating core material is a polyurethane plate.

As a preferable technical scheme, the inner skin is glass fiber reinforced plastic inner skin, and the outer skin is glass fiber reinforced plastic outer skin.

Due to the adoption of the technical scheme, the PET core material framework refrigerator carriage plate comprises a carriage plate framework, a heat preservation core material, an inner skin and an outer skin, wherein the inner skin and the outer skin sandwich the carriage plate framework and the heat preservation core material, the carriage plate framework comprises frame plates which are positioned at the periphery and are mutually connected, a plurality of reinforcing ribs are uniformly distributed between two opposite frame plates, and the frame plates and the reinforcing ribs are PET foam core materials;

the beneficial effects of the utility model are as follows:

1. the density of the PET foam core material is only 200-300 kg/cube, which is half of that of square timber or plywood with the same volume and the same size, the PET foam core material is adopted to replace the original square timber or plywood, the weight is obviously reduced, the light weight requirement of the refrigerator car carriage plate is met, the strength of the PET core material is higher, the strength is not required to be sacrificed while the weight reduction is met, and the PET foam core material can replace the application of organic materials such as timber or plywood in a rigid structure;

2. because the PET foam material is insulated, after the PET foam core material is adopted to replace wood or plywood, a cold bridge is effectively eliminated or minimized, the insulation performance is good, the heat preservation performance is good, and the refrigerating effect of the refrigerated vehicle can be effectively improved;

3. the PET foam material has low water absorption, and can reduce the expansion and cracking of the carriage plate, improve the water resistance of the carriage plate and prolong the service life after replacing wood or plywood.

Drawings

The following drawings are only for purposes of illustration and explanation of the present utility model and are not intended to limit the scope of the utility model.

FIG. 1 is a cross-sectional view of an embodiment of the present utility model;

FIG. 2 is a schematic view of a multiple deck splice according to an embodiment of the present utility model;

in the figure: 1-heat preservation core material; 2-an inner skin; 3-an outer skin; 4-a frame plate; 5-reinforcing ribs; 6-bonding surface.

Detailed Description

The utility model is further illustrated in the following, in conjunction with the accompanying drawings and examples. In the following detailed description, certain exemplary embodiments of the present utility model are described by way of illustration only. It is needless to say that the person skilled in the art realizes that the described embodiments may be modified in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive in scope.

As shown in fig. 1, the refrigerated carriage plate with the PET core material framework comprises a carriage plate framework, a heat preservation core material 1, an inner skin 2 and an outer skin 3, wherein the carriage plate framework is sandwiched with the heat preservation core material 1, the carriage plate framework comprises frame plates 4 which are arranged on the periphery and are mutually connected, a plurality of reinforcing ribs 5 are uniformly distributed between the two opposite frame plates 4, and the frame plates 4 and the reinforcing ribs 5 are PET foam cores. The frame plate 4 and the reinforcing ribs 5 are of strip-shaped square structures.

The density of the PET foam core material is only 200-300 kg/cube, and is half of that of square timber or plywood with the same volume, and the carriage board with the same size is replaced by the PET foam core material, so that the weight is obviously reduced, the light weight requirement of the carriage board of the refrigerator car is met, the strength of the PET core material is high, the weight is reduced, the strength is not required to be sacrificed, and the PET foam core material can replace the application of organic materials such as wood or plywood in a rigid structure.

Because the PET foam material is insulated, after the PET foam core material is adopted to replace wood or plywood, a cold bridge is effectively eliminated or minimized, the insulation performance is good, the heat preservation performance is good, and the refrigerating effect of the refrigerated vehicle can be effectively improved; in addition, the PET foam material has low water absorption, and can reduce the expansion and cracking of the carriage plate, improve the waterproofness of the carriage plate and prolong the service life after replacing wood or plywood.

A plurality of holding grooves are uniformly arranged on one side surface of the heat preservation core material 1 connected with the inner skin 2, the reinforcing ribs 5 are embedded into the corresponding holding grooves, and one side surface of the reinforcing ribs 5 is also connected with the inner skin 2. The reinforcing ribs 5 are in fit connection with the inner skin 2 and are not in fit with the outer skin 3, the inner wall side can be locally reinforced, the reinforcing ribs can not only replace wood or plywood to play a supporting role, but also not damage the continuity of heat insulation materials, and the overall strength of the carriage plate is ensured.

One side surface of the frame plate 4 is exposed to serve as an adhesive surface 6, and the other side surfaces of the frame plate 4 are respectively connected with the inner skin 2, the outer skin 3 and the heat preservation core material 1. The outer side surface of the frame plate 4 is exposed, no skin exists, the exposed surface is used as the bonding surface 6, and as the bonding surface 6 is made of PET materials, compared with wood or plywood commonly used in industry, the PET materials have smaller bonding performance difference and better bonding performance, and can meet the use requirement. The effect of the bonding of the plurality of car plates is shown in fig. 2.

The heat-insulating core material 1 is a polyurethane board, and is a material commonly used in the current refrigerator carriage board, and will not be described here again.

The inner skin 2 is a glass fiber reinforced plastic inner skin 2, the outer skin 3 is a glass fiber reinforced plastic outer skin 3, and is a common material in the existing refrigerator car plate, and will not be described here again.

The reinforcing ribs 5 are respectively provided with an adhesive layer at the joint of the heat preservation core material 1 and the inner skin 2, adhesive layers are respectively provided at the joint of the frame plate 4 and the inner skin 2, the outer skin 3 and the heat preservation core material 1, adhesive layers are respectively provided at the joint of the outer skin 3, the inner skin 2 and the heat preservation core material 1, the adhesive layers are connected to the matched joint of each component, and the adhesive layers are polyurethane bi-component adhesives.

In the embodiment, a dry bonding process is adopted, a PET core material is adopted to replace wood or plywood, firstly, the inner skin 2 and the outer skin 3 are cut into proper sizes, and the PET foam core material and the heat preservation core material 1 are foamed and molded and then cut into proper sizes;

when in manufacture, an operator firstly subscribes the peripheral frame plates 4 and the middle reinforcing ribs 5 into an integral carriage plate framework, and then cuts the heat-preservation core material 1 into a required size according to the residual space in the framework; and the heat preservation core material 1 is correspondingly matched with the reinforcing ribs 5 and the peripheral frame plates 4, the heat preservation core material is placed between the inner mask and the outer mask, polyurethane bi-component glue is adopted between the matching, the inner skin 2, the outer skin 3 and the carriage plate framework with the heat preservation material in the middle are connected through polyurethane bi-component glue and a press, after being pressurized to a certain degree and pressure maintaining for a certain time, the heat preservation core material is pressed and formed into a sandwich composite large plate, a carriage plate for a closed refrigerator car carriage is formed, and the pressing equipment can be a negative pressure machine (vacuumizing working platform) or a positive pressure machine (pressing and heating working platform). The carriage plate framework and the heat preservation core material 1 in the device are cut into plate shapes after foam molding, and then are spliced and combined, so that the design is simplified, the cost is lower, and particularly, compared with the mode of foam injection into the interior for molding in the prior art, the carriage plate manufacturing process is simpler.

The foregoing has shown and described the basic principles, main features and advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

PET core skeleton fridge carriage board, including carriage board skeleton, heat preservation core will carriage board skeleton with heat preservation core intermediate layer is interior skin and outer skin, its characterized in that: the carriage plate framework comprises frame plates which are arranged on the periphery and are connected with each other, wherein a plurality of reinforcing ribs are uniformly distributed between the two opposite frame plates, and the frame plates and the reinforcing ribs are PET foam core materials.
2. The PET core skeletal refrigerated compartment panel of claim 1, wherein: the heat preservation core material with a plurality of holding tanks have evenly been arranged to one side surface that the inner skin is connected, the strengthening rib embedding corresponds in the holding tank, just one side surface of strengthening rib still with the inner skin is connected.
3. The PET core skeletal refrigerated compartment panel of claim 2, wherein: and the joint of the reinforcing rib, the heat preservation core material and the inner skin is provided with an adhesive layer.
4. The PET core skeletal refrigerated compartment panel of claim 1, wherein: one side surface of the frame plate is exposed to serve as an adhesive surface, and the other side surfaces of the frame plate are respectively connected with the inner skin, the outer skin and the heat preservation core material.
5. The PET core skeletal refrigerated compartment panel of claim 4, wherein: and the joint of the frame plate and the inner skin, the outer skin and the heat preservation core material is provided with an adhesive layer.
6. The PET core skeletal refrigerated compartment panel of claim 1, wherein: and the joint of the outer skin, the inner skin and the heat preservation core material is provided with a glue layer.
7. The PET core skeletal refrigerated compartment panel of claim 1, wherein: the heat preservation core material is a polyurethane board.
8. The PET core skeletal refrigerated compartment panel of claim 1, wherein: the inner skin is a glass fiber reinforced plastic inner skin, and the outer skin is a glass fiber reinforced plastic outer skin.