JP5760341B2 - Thermal insulation panel - Google Patents

Description

  The present invention relates to a heat insulating panel, and more specifically, a flat vacuum heat insulating material (VIP) and a frame body that extends along the edge of the vacuum heat insulating material and is formed of the heat insulating material. It is related with the heat insulation panel provided with.

  Conventionally, the following is known as a heat insulation panel provided with a flat-plate vacuum heat insulating material (VIP). For example, a front frame, an upper frame, a rear frame, and a lower frame each made of a heat insulating material are disposed along the edge of the flat vacuum heat insulating material. In such a heat-insulating panel, the fins of the film constituting the vacuum heat insulating material are bent and each frame is disposed (see, for example, Patent Document 1).

JP 2009-212462 A

  However, in the heat insulation panel proposed in Patent Document 1 described above, since the fin portion of the film constituting the vacuum heat insulating material is bent, there is a possibility that pinholes are generated due to tensile stress. If such a pinhole is generated, the gas will be allowed to enter, and the heat insulation performance will be reduced.

  An object of this invention is to provide the heat insulation panel which can suppress generation | occurrence | production of a pinhole and can prevent the fall of heat insulation performance in view of the said situation.

In order to achieve the above-mentioned object, a heat insulating panel according to claim 1 of the present invention is a flat vacuum heat insulating material, and a frame body that is formed of a heat insulating material and extends along an edge of the vacuum heat insulating material. In the heat insulating panel, the frame body is disposed in a manner covering the front and back surfaces of the edge of the vacuum heat insulating material, and the fin portion of the film constituting the vacuum heat insulating material is extended. A front part comprising the left covering part that covers the left face of the front end edge part of the vacuum heat insulating material and the right covering part that covers the right face of the front end edge part. A frame and a frame support member attached to the front frame so as to sandwich the front frame so as to restrict the left covering portion and the right covering portion from being separated from each other. To do.

  Moreover, the heat insulation panel which concerns on Claim 2 of this invention is characterized by the said frame provided with the groove part which enters the said fin part in Claim 1 mentioned above.

  According to the heat insulation panel of this invention, the frame arrange | positioned in the aspect which covers the surface and back surface in the edge of a vacuum heat insulating material accommodates in the state which extended the fin part of the film which comprises a vacuum heat insulating material. Therefore, there is no tensile stress caused by bending the fin portion of the film as in the prior art, and no pinhole is generated. Therefore, it is possible to suppress the occurrence of pinholes and prevent a decrease in heat insulation 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 is an enlarged cross-sectional plan view showing an essential part of the heat insulating partition plate shown in FIG. FIG. 6 is an explanatory view showing a procedure for attaching the front frame shown in FIG. FIG. 7 is an enlarged cross-sectional plan view showing a modified example of the heat insulating panel according to the embodiment of the present invention. FIG. 8 is an explanatory view showing a modification of the heat insulation panel according to the embodiment of the present invention.

  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 to the compressor 21, the condenser 22, the capillary tube 23 and the refrigerant pipe 25 disposed in the machine room 11 to form the refrigeration cycle 20. 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 insulating partition plate 4 exemplified here is constituted by a heat insulating panel 30, a gasket 40 and a cushion material 50. In addition, in this Embodiment, although the heat insulation partition plate 4 is demonstrated as an application example of the heat insulation panel 30, in this invention, it is not restricted only to this heat insulation partition plate 4, The panel shape which defines the goods storage chamber 3 The heat insulating members 2a to 2d may also be configured by the heat insulating panel 30. 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 panel 30 includes a vacuum heat insulating material (VIP) 31 and a frame body 32. As shown in FIG. 4, the vacuum heat insulating material 31 is a rectangular material in which a core (core material) 311 made of a material having low thermal conductivity such as glass fiber is encapsulated in a film 312 such as polyamide and deaerated and sealed. It is of shape. In the vacuum heat insulating material 31, the long side fin portion 312 a of the film 312 extending along the long side of the core 311 and the short side fin of the film 312 extending along the short side of the core 311 due to the characteristics of the manufacturing process. A portion 312b is formed.

  The frame body 32 is formed of a hard heat insulating resin material and is configured to cover the edge of the vacuum heat insulating material 31 in which a fin portion is formed, and includes a frame member. Here, the frame member includes a front frame 33 that covers the front edge of the vacuum heat insulating material 31, an upper frame 34 that covers the upper edge, a lower frame 35 that covers the lower edge, and a rear frame 36 that covers the rear edge. And have.

  FIG. 5 is an enlarged cross-sectional plan view showing an essential part of the heat insulating partition plate 4 shown in FIG. With reference to FIG. 5, the frame body 32 will be described while describing the front frame (frame member) 33 that covers the front edge of the vacuum heat insulating material 31.

  The front frame 33 is a long member extending in the vertical direction, and includes a left covering portion 331 that covers the left side of the front end edge portion of the vacuum heat insulating material 31 and a right side of the front end edge portion of the vacuum heat insulating material 31. The right covering portion 332 to be covered is formed continuously. Between the left covering portion 331 and the right covering portion 332, a core entry portion 333 that allows entry of a front end edge portion (hereinafter also referred to as a core front end edge portion) 313 of the core 311 covered with the film 312; A groove portion 334 that is formed continuously with the core entry portion 333 and that allows the long side fin portion 312a of the vacuum heat insulating material 31 to enter is formed.

  The core entry portion 333 is formed by arranging the core entry formation portion 331a of the left covering portion 331 and the core entry formation portion 332a of the right covering portion 332 so as to be opposed to each other on the left and right sides. The thickness of the vacuum heat insulating material 31 is substantially the same as the thickness of the core front end edge 313.

  The groove part 334 is formed by arranging the groove forming part 331b of the left covering part 331 and the groove forming part 332b of the right covering part 332 so as to be opposed to each other on the left and right sides. 31 is slightly larger than the thickness of the long side fin portion 312a. Further, the longitudinal length of the groove portion 334 has a size that allows the long side fin portion 312a to be extended, that is, an extended state.

  Such a front frame (frame member) 33 is disposed in a manner covering the front end edge of the vacuum heat insulating material 31 as follows. First, as shown in FIGS. 6A and 6B, an adhesive 71 such as a double-sided tape is attached to the left surface of the core front end edge 313. Next, as shown in FIG. 6C, the core entry forming portion 331 a in the left covering portion 331 of the front frame 33 is bonded to the left surface of the core front end edge portion 313 via the adhesive 71. At this time, in the front frame 33, the left covering portion 331 and the right covering portion 332 are not opposed to each other on the left and right sides, and the right covering portion 332 is positioned forward of the left covering portion 331.

  Thereafter, as shown in FIG. 6D, an adhesive material 72 such as a double-sided tape is also applied to the right surface of the core front edge 313, and the right covering portion 332 of the front frame 33 is connected to the left covering portion 331. As shown in FIG. 6E, the core entry forming portion 332a of the right covering portion 332 is bonded to the right surface of the core front end edge portion 313 via the adhesive 72. Let

  As a result, the core entry portion 331a of the left covering portion 331 and the core entry formation portion 332a of the right covering portion 332 are arranged opposite to each other to form the core entry portion 333 and the groove of the left covering portion 331. The formation part 331b and the groove formation part 332b of the right covering part 332 are arranged opposite to each other to form the groove part 334. The long side fin portion 312a of the vacuum heat insulating material 31 enters the groove 334 while the core front end edge portion 313 enters the core entry portion 333. Thereby, the front frame 33 is disposed in a manner covering the left surface (front surface) and the right surface (back surface) of the front edge portion of the vacuum heat insulating material 31, and the long side fin portion of the film 312 constituting the vacuum heat insulating material 31. 312a is stored in an extended state.

  In such a front frame 33, the left cover portion 331 and the right cover portion 332 are further restricted from being separated from each other by the frame support member 37. The frame support member 37 is formed of a hard heat-insulating resin material in the same manner as the front frame (frame member) 33. The frame support member 37 is a long one whose transverse section is U-shaped and whose vertical direction is the longitudinal direction.

  The frame support member 37 includes a base portion 371 that covers the front surface of the front frame 33, a left rear extension portion 372 that extends rearward from the left edge portion of the base portion 371, and a rearward direction from the right edge portion of the base portion 371. And a right-side rearward extending portion 373 that extends. The base 371 constitutes the front surface of the frame support member 37. A protruding piece 372a protruding toward the right side is formed at the extending end portion of the left rear extending portion 372, and a protruding piece protruding toward the left side at the extending end portion of the right rear extending portion 373. 373a is formed.

  Such a frame support member 37 has protrusions 372a and 373a in engagement grooves 331c and 332c extending along the vertical direction on the outer surfaces of the left covering portion 331 and the right covering portion 332 of the front frame 33, respectively. It is attached to the front frame 33 by being slid from the upper side to the lower side or from the lower side to the upper side in the manner of entering, and the left covering part 331 and the right covering part 332 of the front frame 33 are separated from each other. regulate. That is, the frame support member 37 reinforces the attachment of the front frame 33.

  Here, the front frame 33 has been described with reference to FIGS. 5 and 6 as an example of the frame member. However, the longitudinal direction and the like of the other frame members, that is, the upper frame 34, the lower frame 35, and the rear frame 36 are also different. However, it has the same configuration as the front frame 33. Further, although the frame support member 37 is attached to the front frame 33, the frame support member 37 is not necessarily required for the other frame members (the upper frame 34, the lower frame 35, and the rear frame 36). I do not care.

  The gasket 40 is attached to the front end portion of the heat insulating panel 30, that is, the front surface of the frame support member 37. This gasket 40 is a conventionally well-known thing, and is comprised from a soft resin material. The gasket 40 is brought into contact with the closing inner door 7 and elastically deforms to improve the adhesion between the heat insulating panel 30 and the inner door 7.

  The cushion material 50 is attached to the upper end portion and the rear end portion of the heat insulating panel 30. The cushion material 50 is made of a resin material such as foamed polyethylene, for example, and elastically deforms itself so that the heat insulation panel 30 and the panel-like heat insulation members 2a to 2d that define the product storage chamber 3 are formed. This improves the adhesion with the heat insulating members 2a and 2c laid on the top and the back.

  In the heat insulating panel 30 constituting the heat insulating partition plate 4 having the above-described configuration, the frame body 32 is disposed in such a manner as to cover the left surface and the right surface at the edge of the vacuum heat insulating material 31, and constitutes the vacuum heat insulating material 31. Since the fin portion 312a of the film 312 is accommodated in an extended state by entering the groove portion 334, a tensile stress due to bending of the fin portion of the film is not generated as in the conventional case, and a pinhole is generated. There is nothing. Therefore, according to the said heat insulation panel 30, generation | occurrence | production of a pinhole can be suppressed and the fall of heat insulation performance can be prevented.

  According to the heat insulating panel 30, the frame 32 is made of a hard heat insulating resin material, so that the strength can be improved and a sufficiently high heat insulating action can be exhibited.

  Moreover, according to the said heat insulation panel 30, since attachment of the front frame 33 which comprises the frame 32 is reinforced with the frame support member 37, intensity | strength can be improved also by this.

  The preferred embodiment of the present invention has been described above, but the present invention is not limited to this, and various modifications can be made.

  In the above-described embodiment, the front frame 33 which is a frame member is formed by continuously forming the left covering portion 331 and the right covering portion 332. In the present invention, as shown in FIG. In addition, the left covering portion 331 ′ and the right covering portion 332 ′ may be formed separately. In FIG. 7, the same reference numerals are given to those having the same configuration as the above-described embodiment.

  Next, in the heat insulation panel 30 of the present invention, it is not necessary to provide a frame member (lower frame 35) at the lower end edge of the vacuum heat insulating material 31. In this case, the lower end edge of the vacuum heat insulating material 31 is You may support in this way.

  As shown in FIG. 8, the short side fin portion 312 b at the lower end of the vacuum heat insulating material 31 enters the hard foam 80 such as urethane on the floor surface of the place of the heat insulating partition plate 4 to which the heat insulating panel is applied. An allowable groove 81 is formed. And it is made to guide to the guide rail 82 arrange | positioned on the upper surface of this rigid foam 80, and the vacuum heat insulating material 31 (heat insulation panel) is made to stand in the aspect which the short side fin part 312b of a lower end approachs into the groove part 81. Also good. Also by this, since a fin part is not bent, a tensile stress does not arise and generation | occurrence | production of a pinhole can be suppressed and the fall of heat insulation performance can be prevented.

  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 30 Heat insulation panel 31 Vacuum heat insulating material (VIP)
311 Core 312 Film 312a Long side fin part 312b Short side fin part 32 Frame 33 Front frame 331 Left covering part 331a Core entry forming part 331b Groove forming part 332 Right covering part 332a Core entry forming part 332b Groove forming part 333 Core Entry portion 334 Groove portion 34 Upper frame 35 Lower frame 36 Rear frame 37 Frame support member 371 Base portion 372 Left rearward extension portion 372a Projection piece 373 Right rearward extension portion 373a Projection piece 40 Gasket 50 Cushioning material 71, 72 Adhesive
D Rear duct
F Inside fan
H heater

Claims (2)

A flat vacuum insulator,
A heat insulating panel comprising a heat insulating material and a frame extending along an edge of the vacuum heat insulating material,
The frame body is disposed in a manner covering the front and back surfaces of the edge of the vacuum heat insulating material, and is stored in a state where the fin portion of the film constituting the vacuum heat insulating material is extended,
A front frame comprising the frame and having a left covering portion covering the left face of the front edge of the vacuum heat insulating material, and a right covering covering the right face of the front edge;
A heat insulating panel comprising: a frame support member attached to the front frame so as to sandwich the front frame so as to restrict the left covering portion and the right covering portion from being separated from each other. .   The heat insulation panel according to claim 1, wherein the frame body includes a groove portion that allows the fin portion to enter.

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