JP2011133096A - Heat insulating panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat insulating panel reduced in thickness while having sufficient heat insulating performance. <P>SOLUTION: A heat insulating partition plate 4 including a vacuum heat insulating material 41 having a flat plate shape includes a frame 42 extending along an edge of the vacuum heat insulating material 41 and having a first frame member 421 arranged to cover a surface and a back face of the vacuum heat insulating material 41 at its edge. The first frame member 421 is formed with a storage area S for storing a fin part 413 generated by folding and overlapping ear parts 412a, 412b of a film 412 composing the vacuum heat insulating material 41 by contact of a projection part 4211 projecting inward to an outer end surface 41a of the vacuum heat insulating material 41. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a heat insulation panel, and more particularly, to a heat insulation panel provided with a flat vacuum insulation material (VIP: Vacuum Insulation Panel).

  Conventionally, the following is known as a heat insulation panel provided with a flat-plate vacuum heat insulating material (VIP). For example, a vacuum heat insulating material is disposed in a recess formed in a flat base material, and a cover material is adhered to the base material so as to cover the vacuum heat insulating material, thereby forming a flat heat shield. It is a heat insulation panel formed by sandwiching a heat element with a metal plate or the like (see, for example, Patent Document 1).

JP 2006-057785 A

  However, in the heat insulating panel as proposed in Patent Document 1 described above, a vacuum heat insulating material is disposed in a recess formed in the base material, and a lid material is bonded to the base material so as to cover the vacuum heat insulating material. Thus, the heat shield is formed, and the heat shield is formed so as to be sandwiched between metal plates or the like, so that the dimension in the thickness direction becomes excessive.

  When such a heat insulating panel is used as a heat insulating material for defining a product storage of a vending machine, the size of the product storage itself is reduced, leading to a decrease in the number of stored products. .

  An object of this invention is to provide the heat insulation panel which can aim at thickness reduction, having sufficient heat insulation performance in view of the said situation.

  In order to achieve the above object, a heat insulating panel according to claim 1 of the present invention is a heat insulating panel including a flat vacuum heat insulating material, and extends along an edge of the vacuum heat insulating material. It comprises a frame having a frame member arranged in a manner covering the front and back surfaces of the edge of the vacuum heat insulating material, and the projecting portion projecting inward is an outer end surface of the vacuum heat insulating material. A storage area for storing a fin portion formed by folding the ear portion of the film constituting the vacuum heat insulating material is defined.

  Moreover, the heat insulation panel which concerns on Claim 2 of this invention is the aspect in which the said frame is comprised from a softer material than the said frame member in Claim 1 mentioned above, and covers the outer-end part of this frame member. It has the soft frame member arrange | positioned, It is characterized by the above-mentioned.

  According to the heat insulating panel of the present invention, the frame body has a frame member that extends along the edge of the vacuum heat insulating material and is arranged in a manner covering the front and back surfaces of the edge of the vacuum heat insulating material, And in this frame member, the projecting portion protruding inward contacts the outer end surface of the vacuum heat insulating material, so that the storage area for storing the fin portion generated by folding the ear portion of the film constituting the vacuum heat insulating material is stored. Therefore, the thickness dimension of the heat insulation panel can be made about the same as the thickness of the frame body, and the exposed area of the vacuum heat insulating material can be sufficiently secured. Therefore, it is possible to reduce the thickness while having sufficient heat insulating performance.

FIG. 1 is a sectional view showing a case where an internal structure of a vending machine to which a heat insulating panel according to an embodiment of the present invention is applied is viewed from the front. FIG. 2 is a cross-sectional side view showing the internal structure of the vending machine to which the heat insulation panel according to the embodiment of the present invention is applied. FIG. 3 is an explanatory view showing the heat insulating partition plate shown in FIG. 1. FIG. 4 shows the vacuum heat insulating material shown in FIG. 3, in which (a) is a side view, (b) is a front view, and (c) is a plan view. FIG. 5 shows a state in which the long side ear portion and the short side ear portion of the heat insulating member shown in FIG. 4 are folded, (a) is a side view, (b) is a front view, and (c) is a plan view. FIG. 6 is a cross-sectional view taken along line AA in FIG.

  Exemplary embodiments of a heat insulation panel according to the present invention will be described below in detail with reference to the accompanying drawings.

  1 and 2 each show a vending machine to which a heat insulating panel according to an embodiment of the present invention is applied, and FIG. 1 is a cross-sectional view showing a case where the internal structure of the vending machine is viewed from the front. FIG. 2 is a cross-sectional side view showing the internal structure of the vending machine. The vending machine illustrated here includes a main body cabinet 1.

  The main body cabinet 1 is a vending machine main body having a rectangular shape with an open front surface. In the main body cabinet 1, a product storage chamber 3 is defined in such a manner as to be surrounded by panel-like heat insulating members 2a to 2d laid on the top, bottom, back, and both sides. And the inside of this goods storage chamber 3 is provided in the aspect with which the three independent goods storage 5 partitioned off by the two heat insulation partition plates 4, for example was located in the right and left. This product storage 5 is for storing products such as canned beverages and beverages containing plastic bottles in a state maintained at a desired temperature, and has a heat insulating structure.

  As shown in FIG. 2, an outer door 6 and an inner door 7 are provided on the front surface of the main body cabinet 1. The outer door 6 is for opening and closing the front opening of the main body cabinet 1, and the inner door 7 is for opening and closing the front surface of the commodity storage 5. The inner door 7 is divided into upper and lower parts, and the upper door 7a opens and closes when a product is replenished.

  The product storage 5 is provided with a product storage rack 8, a carry-out mechanism 9, and a carry-out shooter 10. The commodity storage rack 8 is for storing commodities in a manner arranged in the vertical direction. The carry-out mechanism 9 is provided at the lower part of the product storage rack 8 and is used to carry out the products at the bottom of the product group stored in the product storage rack 8 one by one. The carry-out shooter 10 is for guiding the product carried out from the carry-out mechanism 9 to a product outlet 6 a provided in the outer door 6.

  An evaporator 24 and a heater H are disposed below the carry-out shooter 10. The evaporator 24 is disposed on the front side of the rear duct D, and is sequentially connected through a compressor 21, a condenser 22, a capillary tube 23 and a refrigerant pipe 25 disposed in the machine room 11 to form a refrigeration cycle 20. is doing. The compressor 21 sucks the refrigerant through the suction port, compresses the sucked refrigerant to be in a high-temperature and high-pressure state (high-temperature and high-pressure refrigerant), and discharges it from the discharge port. The condenser 22 condenses the refrigerant that passes therethrough. More specifically, the refrigerant compressed by the compressor 21 and discharged from the discharge port and sent out through the refrigerant pipe 25 is condensed by exchanging heat with ambient air. The capillary tube 23 is used for adiabatic expansion by depressurizing the refrigerant passing therethrough.

  By circulating the refrigerant in the refrigeration cycle 20, the refrigerant compressed by the compressor 21 is condensed by the condenser 22 and then adiabatically expanded by the capillary tube 23 and passes through the evaporator 24. When the refrigerant passes through the evaporator 24, heat is exchanged with the internal air of the commodity storage 5 in which the evaporator 24 is disposed, and the refrigerant evaporates to cool the internal air. The evaporated refrigerant is sucked into the compressor 21.

  The cooled internal air moves inside the product storage 5 by driving the internal blower fan F, whereby the product stored in the product storage rack 8 of the product storage 5 is at a desired temperature (for example, 5 ° C.). It will be cooled down.

  The heater H is disposed on the front side of the evaporator 24. The heater H heats the surrounding air when energized.

  The air heated by the heater H moves inside the product storage 5 by driving the internal blower fan F, so that the product stored in the product storage rack 8 of the product storage 5 has a desired temperature (for example, 55 ° C.).

  FIG. 3 is an explanatory view showing the heat insulating partition plate 4 shown in FIG. The heat insulation partition plate 4 illustrated here is composed of a heat insulation panel. In addition, in this Embodiment, although the heat insulation partition plate 4 is demonstrated as an application example of a heat insulation panel, in this invention, it is not restricted only to this heat insulation partition plate 4, The panel-shaped which defines the merchandise storage chamber 3 is demonstrated. The heat insulating members 2a to 2d may also be configured by a heat insulating panel. In this case, only a length dimension, a width dimension, etc. differ from the heat insulation partition plate 4, and the basic composition is the same. The heat insulating partition plate (heat insulating panel) 4 exemplified here includes a vacuum heat insulating material (VIP) 41 and a frame body 42.

  As shown in FIG. 4, the vacuum heat insulating material 41 is a rectangular material in which a core 411 made of a material having low thermal conductivity such as glass fiber is encapsulated with a film 412 such as polyamide and deaerated and sealed. is there. In the vacuum heat insulating material 41, due to the characteristics of the manufacturing process, the long-side ear portion 412a of the film 412 extending along the long side of the core 411 and the short-side ear portion 412b of the film 412 extending along the short side of the core 411 are used. And are formed. Then, as shown in FIG. 5, the long side ear portion 412a and the short side ear portion 412b are sequentially folded on the core covering portion 411c, thereby forming a fin portion 413 formed of a film 412 on the entire edge. A heat insulating material 41 is formed.

  6 is a cross-sectional view taken along line AA in FIG. The configuration of the frame body 42 will be described using FIG. 6 as appropriate.

  The frame body 42 is configured to cover the edge of the vacuum heat insulating material 41 in which the fin portion 413 is formed, and includes a first frame member 421 and a second frame member (soft frame member) 422. It is.

  The first frame member 421 is made of a hard resin material, that is, a hard resin material or a rubber material, and has a U-shaped longitudinal section. The first frame member 421 extends along the edge of the vacuum heat insulating material 41 and is disposed so as to cover the front and back surfaces of the edge of the vacuum heat insulating material 41. Here, the size of the first frame member 421 covers the surface of the vacuum heat insulating material 41, but is adjusted to a size that can cover the folded portion of the long side ear portion 412a and the short side ear portion 412b. .

  In such an inner end portion 421a of the first frame member 421, a protrusion 4211 is arranged along the extending direction of the first frame member 421 in a manner of protruding inward. The protrusion 4211 has its own protrusion end surface 4211a bonded to the outer end surface 41a of the vacuum heat insulating material 41, that is, the end surface located on the back surface side of the portion where the fin portion 413 is formed, through an adhesive (not shown). The protruding height is adjusted to a size that can define a storage area S necessary and sufficient for storing the fin portion 413 of the vacuum heat insulating material 41.

  The second frame member 422 is made of a softer resin material than the first frame member 421, that is, a soft resin material or rubber material. The second frame member 422 is disposed on the periphery of the first frame member 421 so as to cover the outer end portion 421b of the first frame member 421. Here, the second frame member 422 may be affixed to the outer end portion 421b of the first frame member 421 with an adhesive (not shown) or the like, and may be formed integrally with the first frame member 421 by injection molding or the like. Also good.

  Such a heat insulating partition plate (heat insulating panel) 4 is configured by covering the edge of the vacuum heat insulating material 41 obtained by folding the long side ear part 412a and the short side ear part 412b of the film 412 with a frame body 42. Since there is only it, the thickness dimension of the heat insulation partition plate 4 can be made into the magnitude | size of the thickness of the frame 42. In addition, the exposed area of the vacuum heat insulating material 41 can be sufficiently ensured.

  Therefore, according to the heat insulation partition plate (heat insulation panel) 4 which is embodiment of this invention, thickness reduction can be achieved, having sufficient heat insulation performance. Thereby, the volume of the product storage 5 can be sufficiently secured, and there is no possibility of causing a reduction in the number of stored products.

  Further, in the heat insulating partition plate 4, a storage area in which the protrusion 4211 of the first frame member 421 constituting the frame body 42 contacts the outer end surface 41 a of the vacuum heat insulating material 41 and stores the fin portion 413 of the vacuum heat insulating material 41. Since S is defined, it is possible to prevent the heat insulation performance from being deteriorated due to breakage or the like in the fin portion 413.

  In the heat insulating partition plate 4, the second frame member 422 constituting the frame body 42 is disposed in a manner covering the outer end portion 421 b of the first frame member 421, and is a softer resin than the first frame member 421. Since it is formed from a material, it can absorb the distortion of the main body cabinet 1, the distortion of the vacuum heat insulating material 41, etc. by elastically deforming itself, and sufficiently ensure the airtightness of the commodity storage 5. Can do.

  As described above, the heat insulating panel according to the present invention is useful for a vending machine that sells products such as canned beverages and plastic bottled beverages.

1 Main body cabinet 2a-2d Thermal insulation member
3 product storage room
4 Insulation partition
5 product storage
6 Outside door
7 Inner door
8 Product storage rack
DESCRIPTION OF SYMBOLS 9 Unloading mechanism 10 Unloading shooter 11 Machine room 20 Refrigeration cycle 21 Compressor 22 Condenser 23 Capillary tube 24 Evaporator 25 Refrigerant piping 41 Vacuum heat insulating material (VIP)
41a outer end surface 411 core 412 film 412a long side ear portion 412b short side ear portion 413 fin portion 42 frame body 421 first frame member 421a inner end portion 421b outer end portion 4211 protrusion 4211a protruding end surface 422 second frame member (soft frame) Element)
D Rear duct
F Inside fan
H heater
S storage area

Claims (2)

A heat insulation panel provided with a flat plate vacuum insulation material,
It comprises a frame having a frame member that extends along the edge of the vacuum heat insulating material and is arranged in a manner covering the front and back surfaces of the edge of the vacuum heat insulating material,
The frame member accommodates a fin portion that is generated by folding an ear portion of a film that constitutes the vacuum heat insulating material by a protrusion projecting inward contacting the outer end surface of the vacuum heat insulating material. Insulation panel characterized in that the area is defined.   2. The heat insulation according to claim 1, wherein the frame body includes a soft frame member that is made of a softer material than the frame member and is disposed in a manner to cover an outer end portion of the frame member. panel.

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