Patent Publication Number: US-10766684-B2

Title: Liquid crystal panel packaging box with temperature regulating function

Description:
RELATED APPLICATIONS 
     The present application is a National Phase of International Application Number PCT/CN2018/073274, filed Jan. 18, 2018, and claims the priority of China Application No. 201711419170.3, filed Dec. 25, 2017. 
     FIELD OF THE DISCLOSURE 
     The disclosure relates to the field of liquid crystal panel packaging and more particularly to a liquid crystal panel packaging box with a temperature regulating function. 
     BACKGROUND 
     At present, the most commonly used materials for the packaging of open cell panels are foam cushioning materials, such as Expandable Polyethylene (EPE) and expanded polypropylene (EPP). The packaging method is basically a sealed way, that is, each box is closely stacked, wrapped around the stack with a wrap film, and covered with a polyethylene (PE) waterproof membrane on the top of the stack. However, it is not uncommon to find that mist or water droplets sometimes form inside the wrap film or even the box after a product is shipped to a destination for unpacking. 
     There are two reasons for this phenomenon: first, the water vapor in high humidity environment through the outer protective film and the top cover film into the package; second, the temperature difference between different environments lead to the condensation of water vapor into water droplets and stored in the box body. After a variety of ways to try and found that the temperature difference between inside and outside the box is the main reason for the box body into the water. In response to this phenomenon, the common practice is to place a desiccant inside the box to absorb moisture, but the effect is not ideal. And the location of the desiccant is fixed; the desiccant cannot completely absorb the moisture in all parts of the box. 
     SUMMARY 
     The technical problem to be solved by the disclosure is to overcome the shortcomings of the prior art and to provide a liquid crystal panel packaging box, which may dynamically regulate the internal temperature of the box. 
     To achieve the object, the disclosure adopts the following technical solutions: 
     A liquid crystal panel packaging box with a temperature regulating function includes a box body and a temperature regulator, the box body includes an accommodating part, the temperature regulator is arranged in the accommodating part, and the temperature regulator is configured to release or absorb heat as an outside temperature changes to keep an internal temperature of the box body balanced. 
     Optionally, the temperature regulator includes a shell with a hollow interior and a phase change material filled in the shell. 
     Optionally, a number of the accommodating part and the temperature regulator are plural, and the plurality of accommodating parts are spaced on a frame of the box body. 
     Optionally, an inner wall and/or an outer wall of the frame includes the accommodating parts having a rectangle shape, and the accommodating parts extend along a length of the frame, a shape of the shell matches that of each of the accommodating parts, and the shell is accommodated in each of the accommodating parts. 
     Optionally, the main body has a cuboid shape, a number of the protrusions are two, two of the protrusions are respectively disposed on two opposite surfaces of the main body, and the two protrusions respectively extend toward a direction of a length of the frame. 
     Optionally, the phase change material is paraffin or sodium sulfate decahydrate. 
     In the liquid crystal panel packaging box with temperature regulating function disclosed by the disclosure, by disposing a temperature regulator on the periphery of the box body, when the outside temperature changes, the temperature regulator may spontaneously absorb heat or release heat so as to regulate the temperature inside the box body, thereby reducing the temperature difference between the inside and outside the box and preventing the water vapor in the air from condensing inside the box. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a schematic diagram of a box body according to a first embodiment of the disclosure. 
         FIG. 2  is a cross-sectional view of a liquid crystal panel packaging box according to a first embodiment of the disclosure. 
         FIG. 3  is a schematic diagram of a box body according to a second embodiment of the disclosure. 
         FIG. 4  is a cross-sectional view of a liquid crystal panel packaging box according to a second embodiment of the disclosure. 
         FIG. 5  is a schematic diagram of a shell of a temperature regulator according to a second embodiment of the disclosure. 
     
    
    
     DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS 
     In order to make the objectives, technical solutions and advantages of the disclosure more comprehensible, the disclosure is further described in detail below with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the disclosure and are not intended to be limiting of the disclosure. 
     Embodiment 1 
     As shown in  FIG. 1  and  FIG. 2 , the liquid crystal panel packaging box with temperature regulating function of the present embodiment mainly includes a box body  10  and a temperature regulator  20 . The box body  10  includes an accommodating part  12 , and the temperature regulator  20  is disposed on an accommodating part  12 . When the outside temperature rises, the temperature regulator  20  absorbs the heat, so that the temperature inside the box body  10  does not increase or increases a little; when the outside temperature is lowered, the temperature regulator  20  releases the energy so that the interior temperature of the box body  10  does not decrease or decrease a little so that when the outside temperature changes, the temperature inside the box body  10  will always be stable, so that the temperature difference between the inside and outside of the box body  10  is relatively small so as to avoid condensation of water vapor in the air into beads attached to the liquid crystal panel inside the box. 
     As a preferred embodiment, the temperature regulator  20  uses a phase change material temperature regulator. Specifically, the temperature regulator  20  includes a shell  21  and a phase change material  22 . The interior of the shell  21  is hollow and defines an enclosed cavity. The phase change material  22  is filled in the shell  21 . The phase change material  22  can change between a liquid state and a solid state according to a change in temperature, thereby dynamically regulating the temperature in the box body  10  to prevent the formation of waterdrops in the box body  10 . The material of the shell  21  is made of a metal material with good thermal conductivity, such as copper and silver, or uses an aluminum-plastic composite material and the like, and the shell thickness of the shell  21  should be as thin as possible. Considering the environment in which the liquid crystal panel packaging box is implemented, the phase change material  22  is preferably a normally low temperature phase change material, such as sodium sulfate decahydrate or paraffin, which is sensitive to temperature changes at room temperature and has a better temperature regulatory effect. 
     Specifically, the box body  10  has a frame shape. Optionally, the box body  10  is a rectangular frame. The number of the accommodating part  12  and the temperature regulator  20  are both plural, the plurality of accommodating parts  12  are spaced on the frame  11  of the box body  10 , so that the plurality of temperature regulators  20  are spaced at the periphery of the box body  10  to facilitate regulation of the internal temperature of the box by the temperature regulator  20 . 
     Further, the frame  11  includes an accommodating part  12  with an elongated shape. As preferred examples of embodiment, an inner wall  13  of the frame  11  includes an accommodating part  12  with an elongated shape, the accommodating part  12  extends along the length of the frame  11 , a shape of the shell  21  matches the shape of the accommodating part  12 , and the shell  21  is accommodated in the accommodating part  12 . As a preferred embodiment, the accommodating part  12  is a cuboid cavity. Of course, in other embodiments, the accommodating part  12  can also be a cylinder shape, an elliptical cylinder shape, a triangular prism shape, or the like. 
     Further, as shown in  FIG. 2 , a blocking part  12   a  is disposed on a side wall near the opening of the accommodating part  12 . The blocking part  12   a  abuts the surface of the shell  21  away from the accommodating part  12 ; the limit of the shell  21  may be achieved, thereby preventing the shell from falling off the accommodating part  12 . Further, the surface of the shell  21  away from the accommodating part  12  includes a recessed part, and the blocking part  12   a  is snapped into the shell  21 , so that the shell  21  may be more stably fixed. 
     Of course, in other embodiments, both an outer wall and a surface located between an inner wall and the outer wall of the frame  11  includes the accommodating parts  12  with an elongated shape. Each of the accommodating parts  12  extends along the length of the frame  11 . In this way, more temperature regulators  20  can be installed on the box body  10  to further improve the temperature regulation capability inside the box. 
     Embodiment 2 
     As shown in  FIG. 5 , the liquid crystal panel packaging box with the temperature regulating function in the second embodiment is different from the first embodiment in that the shell  21  includes a main body  21   a  and a protrusion  21   b  disposed on a surface of the main body  21   a . The main body  21   a  and the protrusion  21   b  both have a hollow interior. As shown in  FIG. 3  and  FIG. 4 , a plurality of accommodating parts  12  are disposed on the inner wall of each of the frame  11  at intervals, the shape of the accommodating part  12  matches the shape of the shell  21 , the shell  21  is inserted into the accommodating part  12 , and the main body  21   a  and the protrusion  21   b  abuts the inner wall of the accommodating part  12 . 
     As a preferred embodiment, the main body  21   a  has a cuboid shape, a number of the protrusions  21   b  is two, two of the protrusions  21   b  are respectively disposed on two opposite surfaces of the main body  21   a , and the two protrusions  21   b  respectively extends toward a direction of a length of the frame  11 . The accommodating part  12  can limit the position of the shell  10  to prevent the temperature regulator  20  from falling off. 
     In the liquid crystal panel packaging box with temperature regulating function disclosed by the disclosure, by disposing a temperature regulator on the periphery of the box body, when the outside temperature changes, the temperature regulator may spontaneously absorb heat or release heat so as to regulate the temperature inside the box body, thereby reducing the temperature difference between the inside and outside the box and preventing the water vapor in the air from condensing inside the box. 
     While specific embodiments of the invention have been described in detail, while some embodiments have been shown and described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents, These embodiments may be modified and improved, and these modifications and improvements should also fall within the protection scope of the disclosure.