JP2005269927A - Cold-insulating pallet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cold-insulating pallet which has a simple structure, can surely cool matters to be cooled, such as fishes, to keep the freshness of the matters and prevent the breeding of bacteria, can easily change the size of the pallet and a pallet-setting place, and can be manufactured at a low cost. <P>SOLUTION: This cold-insulating pallet is characterized by disposing a resin pipe unit 30 comprising a heat-exchanging fluid-feeding side main pipe 32, a heat-exchanging fluid-returning side main pipe 34, and a plurality of thin heat-exchanging pipes 36 each spun between the main pipes 32, 34 in a communicated state, disposing aluminum panels 12 for receiving the heat-exchanging pipes 36 on the back side in a contacted state and for loading the matters to be cooled on the front side, engaging connection members 16 for connecting the aluminum panels 12 to each other on the same plane at the side edge portions 14a of the aluminum panels 12, fixing back side plates 20 to be used as a setting face on the back sides of the aluminum panels 12 through prescribed spaces, and filling a heat-insulating material 52 between the aluminum panels 12 and the back side plates 20. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a cold pallet on which fish and the like are placed and displayed in a fish market or other places where fresh foods are handled.

  Conventionally, for example, the competition place in the fish market, for example, is mostly between concrete soils, and the competition is performed by directly placing fish on the soil space. However, in this case, since the fish is placed directly on the released soil, the hygienic condition is not good, and bacterial contamination of the fish has been a problem. Therefore, as a method of not placing fish directly in the soil, there is a fish slat for displaying and storing fish on a slat. However, most of the sausages are made of wood, which is not preferable in terms of hygiene. For example, sterilization is propagated when fish juice or fish skin adheres to the surface of the wooden sausages or the gaps between joints. Also, wooden slats have a short service life because they are used in such a way as to apply force such as hooking a hand key or dragging on a concrete floor.

  In order to solve these problems, there is a fish slat disclosed in Patent Document 1. This is because the slatboard plate and the crosspiece are made of aluminum, and an inclined chamfer is formed on the edge of the slatboard end portion in the width direction so as not to damage the fish skin and the fish body over the entire length.

  Further, as a device for displaying fish in a state of being cooled to a low temperature for preventing bacterial contamination, there is a fish fishery display storage device disclosed in Patent Document 2. This is comprised of a cooling passage provided with a cooling plate capable of displaying fish on the surface and a heat insulating portion attached to the bottom of the cooling portion, with a brine passage as a heat exchange fluid provided therein. The brine is supplied to the brine passage to cool the cooling plate. In addition, an enclosure, an upper lid, an air passage, and the like are added to the cooling plate, and an ice heat storage system is combined with a cooling device that cools the brine.

JP 2000-201618 A JP 2000-14315 A

  The fish slats disclosed in Patent Document 1 are made of aluminum and have a sanitary surface, but have no effect of keeping the fish at a low temperature, and maintain the freshness of the fish for a long time to prevent bacterial growth. I could not. In addition, various bacteria are likely to propagate in the liquid soaked in the joint portion between the members, and there is a possibility that propagation of the various germs may occur where the bacteria cannot be seen.

  In addition, the fish and fishery display storage device disclosed in Patent Document 2 is formed of the same structure as the cooling plate of the cooling unit and the brine passage, and the size is fixed and cannot be changed. Moreover, since it is a fixed type, it could not be easily rearranged or moved once it was installed. Furthermore, this display storage device has a complicated structure of the cooling unit integrated with the cooling plate, is expensive and expensive to manufacture, is difficult to disassemble and clean the pallet, etc., and easily propagates germs in the place where it enters. Is.

  The present invention has been made in view of the above-mentioned conventional problems, and keeps the object to be cooled, such as fish, cool with a simple structure to maintain freshness, suppress the growth of bacteria, and change the size and installation location. An object of the present invention is to provide a cold pallet that can be easily manufactured at low cost.

  The present invention includes a main pipe on the supply side of the heat exchange fluid, a main pipe on the return side of the heat exchange fluid, and a plurality of thin heat exchange pipes that are connected in communication between the main pipes. A resin-made pipe unit, a panel on which the heat exchange pipe is brought into contact with the back side and stored, and an object to be cooled is placed on the front side, and a back plate serving as an installation surface is provided on the back side of the panel. The panel is fixed at a predetermined interval, a heat insulating material is filled between the panel and the back plate, and the pipe unit is provided with a joint member for connecting the main pipe and an external refrigerant pipe. It is a cold pallet. As said refrigerant | coolant, liquids, such as an antifreeze, are favorable and handleability is preferable.

  The panel has an external member such as a side cover that is connected to the periphery of the panel and smoothes the level difference between the corners. The contact portion between the panel and the external member is filled with a sealing agent and is liquid-tight. It is connected to.

  A flexible pipe is connected to the joint member of the pipe unit, and a pipe storage portion for storing the flexible pipe is provided on the back side of the panel along each main pipe. A plug connected to the refrigerant pipe is provided.

  The panel is made of aluminum, and the side edge of the panel has an engaging portion for connecting the panels flush with each other, and the heat exchange pipe is housed individually on the back side. Grooves are provided. The heat exchange pipe storage groove has a substantially semicircular cross-sectional shape, and a plurality of different groove widths corresponding to the thickness of the plurality of types of heat exchange pipes are arranged at a predetermined pitch. Has been.

  Moreover, the said panel consists of a stainless plate, and the said heat exchange pipe is adhere | attached on the back surface. Further, a reinforcing plate such as a plywood may be integrally joined with the panel on the back side of the heat exchange pipe. The heat insulating material is filled between the reinforcing plate and the back plate.

  An inorganic disinfectant such as silver, copper or titanium oxide may be fixed on the surface side of the panel. The panel may be concrete, stone, resin, or a metal plate other than the above, and the material is not limited.

  In the cold pallet of the present invention, a temperature sensor such as a thermistor is provided on the main pipe to monitor the temperature of the heat exchange pipe. A flow control valve such as an electromagnetic valve is attached to the main pipe so that the refrigerant flow rate can be controlled. The temperature sensor and the flow rate control valve can be detachably connected to a power supply and control cable via a connector.

  The cold pallet of the present invention can reliably cool an object to be cooled such as a fish to be displayed with a simple structure, maintain freshness, and suppress the propagation of germs. In addition, an appropriate combination of positions and numbers can be freely set, and movement and rearrangement can be easily performed. Furthermore, the components can be easily disassembled and assembled, and cleaning and sterilization can be reliably performed, and hygiene management is easy.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 5 show a first embodiment of the present invention, and a cold pallet 10 according to this embodiment includes a plurality of same-shaped elongated rectangular aluminum panels 12 in a direction perpendicular to the longitudinal direction. The cold insulation pallet 10 is constituted by one or a plurality of appropriate aluminum panels 12 which are connected to the same plane and provided as a set.

  The aluminum panel 12 is a long member made of aluminum and made by extrusion molding. The aluminum panel 12 has a cross-sectional shape, for example, a fixed shape as shown in FIG. It is more preferable that the outer surface of the aluminum panel 12 is coated with silver fine particles having antibacterial action or titanium dioxide photocatalyst powder that exhibits bactericidal action when irradiated with ultraviolet rays.

  The surface side of the aluminum panel 12 is formed as a flat mounting portion 14 on which the object to be cooled 2 such as fish is placed. The side edge portion 14a parallel to the longitudinal direction of the mounting portion 14 is an engaging portion, and is formed on a surface perpendicular to the mounting portion 14 as shown in FIG. The portions 14 a are in contact with each other and are integrally connected to each other by the connecting member 16. A concave portion 14b is formed in the side edge portion 14a, a sealing agent is applied to a joint portion between the side edge portions 14a, and the concave portion 14b is filled with the sealing agent, so that a reliable seal is achieved. Moreover, the outer edge of the aluminum panel 12 located in the both sides of the direction parallel to a longitudinal direction is the side edge part 15 formed in the R shape with a fixed cross section.

  The connecting member 16 is made of an extruded aluminum material having a constant cross section having a recess 18 that holds the pair of side edge portions 14a. The side edge portion 14a and the concave portion 18 of the connecting member 16 are positioned and fixed by engaging their convex portions. And the lower surface 16a of the connection member 16 becomes the same as the lower surface 15a of the side edge part 15 in the state fitted to the side edge part 14a, and doubles as the reinforcing material of the cold insulation pallet 10. A resin back plate 20 that covers the lower surface 16a of the connecting member 16 and the lower surface 15a of the side edge 15 is fixed to the back surface of the cold pallet 10 to which the aluminum panel 12 is connected. A sealing agent is also applied to the joint surface between the back plate 20 and the lower surface 15a, and the inside of the cold insulation pallet 10 is hermetically sealed.

  A substantially semicircular heat exchange pipe storage groove 22 having the same cross-sectional shape along the longitudinal direction of the mounting part 14 is formed on the back surface of the mounting part 14 of the aluminum panel 12. Is provided with a recess 24.

  A resin pipe unit 30 shown in FIG. 1 is attached to a plurality of heat exchange pipe storage grooves 22 formed in parallel on the back surface of the aluminum panel 12. The pipe unit 30 is provided with a supply main pipe 32 positioned on the supply side of the circulating heat exchange fluid and a return main pipe 34 positioned substantially parallel to the supply main pipe 32. The supply-side main pipe 32 is formed to have a length substantially equal to the width perpendicular to the longitudinal direction of the aluminum panel 12. A joint member 40 is fixed to the base end portion of the supply-side main pipe 32, and a flexible pipe 42 is connected to the joint member 40. Has been. Similarly, the return side main pipe 34 is provided with a length substantially equal to the width perpendicular to the longitudinal direction of the aluminum panel 12, and is folded back from the side edge of the supply side main pipe 32 opposite to the joint member 40. A joint member 44 is provided on the same side of the supply side main pipe 32 as the joint member 40, and a flexible pipe 46 is connected to the joint member 44. Thereby, the plug 38 mentioned later is arrange | positioned at the one side of the longitudinal direction of the cold storage pallet 10, and piping connection becomes easy.

  At both ends of the cold pallet 10 to which the aluminum panel 12 is connected, pipe storage portions 48 and 50 for storing the flexible pipes 42 and 46 are provided on the back side of the aluminum panel 12 along the main pipes 32 and 34. ing. Furthermore, the flexible pipes 42 and 46 are provided with plugs 38 connected to refrigerant pipes 56 and 58, which will be described later, at the distal ends.

  The heat exchange pipe 36 is formed so that the cross-sectional area of the inner diameter is sufficiently smaller than the pipe cross-sectional areas of the main pipes 32 and 34, and has flexibility. A large number of heat exchange pipes 36 are arranged in parallel to each other at a constant pitch in the longitudinal direction of the main pipes 32 and 34.

  In this embodiment, one pipe unit 30 is attached to a set of aluminum panels 12 in which a plurality of aluminum panels 12 are engaged with each other. The heat exchange pipe 30 is fitted in close surface contact with each other at intervals. The pair of main pipes 32 and 34 are located at both ends of the aluminum panel 12 in the longitudinal direction, and are located substantially perpendicular to the longitudinal direction of the aluminum panel 12.

  Furthermore, a heat insulating material 52 is provided on the back surface of the placement portion 14 of the cold pallet 10 so as to cover the pipe unit 30. The heat insulating material 52 is made of urethane foam or the like, and has improved water resistance and water repellency as well as heat insulating properties. A sheet that reflects radiant heat from the ground may be provided.

  A side cover 54 made of resin is attached to the edge portions 12a and 12b of the aluminum panel 12 on both sides in the longitudinal direction of the cold pallet 10 so that the sides have smooth R surfaces. Is covered.

  For example, as shown in FIG. 4, a plurality of aluminum panels 12 are integrated to form a single cold pallet 10 to which a pipe unit 30 is attached, and an arbitrary number of sets are used. The cold pallet 10 is appropriately connected and used. The plugs 38 at the distal ends of the flexible pipes 42 and 46 connected to the main pipes 32 and 34 are connected to refrigerant pipes 56 and 58 laid in a concrete soil wall 62 such as a fish market. The refrigerant pipes 56 and 58 are formed by connecting a supply-side refrigerant pipe 56 connected to the supply-side main pipe 32 and a return-side refrigerant pipe 58 connected to the return-side main pipe 34 of the pipe unit 30 in parallel. The sockets 60 into which the plugs 38 are inserted are attached to the soil 62 at intervals slightly shorter than the length of the cold pallet 10 in the longitudinal direction. In each of the refrigerant pipes 56 and 58, a refrigerant such as an antifreeze liquid cooled below the freezing point is circulated by a circulation pump (not shown), and heat is exchanged by the heat exchange pipe 36 of the pipe unit 30. 14 is maintained at a predetermined temperature below freezing.

  When the plugs 38 are inserted into the socket 60, the flexible pipes 42 and 46 are pulled out from the pipe housing portions 48 and 50, the plug 38 is inserted into the socket 60, and the aluminum panel 12 is placed in the soil 62, and the flexible pipe 42. , 46 are accommodated in the pipe accommodating portions 48, 50 and do not get in the way. And the raw tuna 64 and frozen tuna which are to-be-cooled objects are mounted in the mounting part 14 of the cold-retaining pallet 10 arrange | positioned in this way, and a temperature rise is suppressed.

  In addition, as shown in FIG. 5, the cold pallet 10 may be placed on a work table 70 and used for dismantling and storing raw tuna 64 and the like while keeping cold. In this case, the flexible pipes 42 and 46 are pulled out from the pipe storage portions 48 and 50 of the aluminum panel 12 and the plug 38 is inserted into a socket (not shown) under the work table 70 for use. A fixed plate 72 is erected on one side surface in the longitudinal direction of the work table 70, and an acrylic plate 74 is provided on both side surfaces of the fixed plate 72 so as to be openable and closable. A magnet 78 provided on the fixed plate 72 is detachably provided. Thereby, the temperature rise of to-be-cooled objects, such as raw tuna 64, can be suppressed more effectively.

  According to the cold pallet 10 of this embodiment, the object to be cooled can be placed on the placement part 14 of the cooled aluminum panel 12 and displayed and stored at a low temperature, and the freshness of the object to be cooled can be reliably maintained, In addition, it is hygienic because it can suppress the propagation of germs. Furthermore, it is easy to add or remove the cold pallet 10 from the refrigerant pipes 56 and 58 provided in the soil 62 as appropriate, and can be arbitrarily set according to what is to be cooled. In particular, since the plugs 38 provided on the cold pallet 10 are provided on both sides in the longitudinal direction of the cold pallet 10, connection to the socket 60 is easy. In addition, the aluminum panel 12 of the cold insulation pallet 10 is extremely hygienic because the joint portion is reliably sealed with a sealing agent and there is no space for moisture and bacteria to enter. Furthermore, since the surface of the aluminum panel 12 has been subjected to antibacterial processing or photocatalytic processing, the sterilizing effect is enhanced, and organic component stains can be decomposed and can be maintained in a more hygienic state. .

  Next, a second embodiment of the cold pallet according to the present invention will be described with reference to FIGS. Here, the same members as those in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted. The cold insulation pallet 80 of this embodiment is obtained by connecting the aluminum panels 12 similar to the aluminum panels 12 except for both sides of the cold insulation pallet 10 of the above embodiment by the connecting members 16.

  In the both sides of the cold pallet 80 in this embodiment in the longitudinal direction, a side cover 82 having a side surface forming a slope is formed to have a length equal to that of the aluminum panel 12, and the side edge 14 a of the aluminum panel 12 is the side of the side cover 82. The coupling recess 84 is fitted and fixed. The engagement between the side surface portion 14a and the connecting recess 84 is achieved by the engagement of the respective protrusions. A sealing agent is also applied to the joint portion and joined in a liquid-tight state. The side cover 84 is formed of an aluminum extruded shape member or the like.

  In the pipe unit 30 provided in the cold insulation pallet 80 of this embodiment, the joint members 40 and 44 provided on the supply side main pipe 32 and the return side main pipe 34 protrude from both longitudinal ends of the cold insulation pallet 80. It has been. Valves 86 are respectively attached to the joint portions 40 and 44, and are connected to supply-side refrigerant pipes 56 and return-side refrigerant pipes 58 that are piped to the concrete dirt spaces 62 of the fish market through the valves 86. Is done. Further, as shown in FIG. 9, the joint portions 40 and 44 of the adjacent cold pallet 80 are connected to each other, and the supply-side refrigerant pipe 56 is connected to the supply-side main pipe 32 of one end row, and the other-end row is connected. A return side refrigerant pipe 58 may be connected to the return side main pipe 34. The supply side refrigerant pipe 56 and the return side refrigerant pipe 58 are connected to a circulation pump 68.

  According to the cold insulation pallet 80 of this embodiment, since both side surfaces in the longitudinal direction of the cold insulation pallet 80 are formed by the side covers 82 formed with inclined surfaces, the raw tuna 64, the frozen tuna 65, and the like that are the objects to be cooled are accommodated. It can be pulled up smoothly from the earthwork 62. Further, the refrigerant pipes 56 and 58 are provided with a valve 86, and the refrigerant can be supplied only to necessary portions of the cold pallets 80. Further, for example, an object to be cooled having a constant temperature of about minus several tens of degrees like the frozen tuna 65 can be maintained at a constant temperature for a long time by the heat insulating material 52 in the cold insulation pallet 80 without flowing a refrigerant.

  In order to prevent the cold insulation pallet 80 from moving when the cold insulation pallet 80 according to this embodiment is placed on the dirt 62, as shown in FIG. 10, the side cover 90 is attached to the anchor bolt 88 protruding from the dirt 62. It is preferable that the positioning holes 92 formed at predetermined intervals are fitted and fixed to each other. In this case, the side part of the aluminum panel 12 to which the side cover 90 is attached may integrally have an edge part 90a to which the side cover 90 is attached as shown in FIG. A through hole 93 through which the anchor bolt 88 passes is formed in the back plate 20 and the edge portion 90a.

  Furthermore, as shown in FIG. 11, the side edge portion 14a of the aluminum panel 12 may be fitted and connected to the side cover 91, and the side cover 91 is formed with a positioning hole 92 penetrating therethrough. . The anchor bolt 88 is screwed with a nut 94 and is provided with a nut cover 96 that is flush with the slope of the side cover 91. Thereby, the cold pallet 80 can be firmly fixed to the dirt 62.

  Next, a third embodiment of the cold pallet according to the present invention will be described with reference to FIG. Here, the same members as those in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted. In the cold pallet 100 according to this embodiment, the panel of the front mounting portion 14 is made of a stainless steel surface plate 102, and the heat exchange pipe 36 of the pipe unit 30 is integrally bonded to the back surface by an adhesive 104 such as urethane resin. ing. Further, a reinforcing plate 106 made of plywood or the like is integrally bonded to the back side of the heat exchange pipe 36 by an adhesive 104 such as urethane resin. A heat insulating material 52 such as urethane foam resin is filled between the reinforcing plate 106 and the stainless back plate 108.

  The side edge portions of the stainless steel surface plate 102 and the back plate 108 are bent in an L shape, and the bent portions 102a and 108a are fitted into mounting grooves 112 formed on the front and back surfaces of the resin side cover 110. Then, it is sealed with a sealant 114 and fixed in a flush state. Further, the reinforcing plate 106 is appropriately provided with a through hole 116, which serves as an air escape path when the heat insulating material 52 is filled and foamed.

  Further, a cutout groove 118 cut out at a right angle is formed at the lower end edge of the side cover 110. The cutout groove 118 is provided along the side cover 110 on the entire circumference of the cold pallet 100. Furthermore, you may provide the attachment piece 120 for fixing between soil at the appropriate location of the side cover 110 by insert molding or integral molding as needed. A through hole 122 for attachment is formed in the attachment piece 120, and is fixed to the soil with a fixing bolt 124 or the like.

  In the cold insulation pallet 100 of this embodiment, the heat exchange pipe 36 of the pipe unit 30 is bonded and integrated on the back surface of the stainless steel surface plate 102, and the reinforcing plate 106 is integrally bonded to the back side thereof. In addition to increasing the strength of the cold insulation pallet 100 itself, the heat exchange pipe 36 is protected by the reinforcing plate 106 when the heat insulation material 52 is filled, and the heat insulation material 52 does not enter the bonded portion of the heat exchange pipe 36, so that the deformation and heat exchange pipe 36 No peeling or the like occurs. In addition, urethane resin can be injected using an existing manufacturing method such as a partition panel, and the manufacturing process is small and easy to manufacture. Moreover, heat exchange between the heat exchange pipe 36 and the surface plate 102 is also effectively achieved.

  Further, a notch groove 118 is formed on the entire circumference of the cold pallet 100, which is convenient for carrying. When the fixing piece 120 for fixing is provided, the fixing to the soil is easy and reliable.

  Next, a fourth embodiment of the cold insulation pallet according to the present invention will be described with reference to FIGS. Here, the same members as those in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted. The cold pallet 130 of this embodiment has the same structure as that of the third embodiment, and has no reinforcing plate 106 inside as shown in FIG.

  In addition, a pair of main pipes 126 on the supply side and return side of the pipe unit 30 are located as close as possible to the vicinity of each short side edge of the cold pallet 130, and the heat exchange pipe 36 is provided therebetween. Yes. The pair of flexible pipes 132 are located slightly inside the main pipe 126 and are attached to the back side of the cold pallet 130 with the heat exchange pipe 36 interposed therebetween. Furthermore, the front ends of the pair of main pipes 126 are connected to the pair of flexible pipes 132 via joint members 128, respectively. The flexible pipe 132 is accommodated in its entirety, including the plug 38 at the tip end, in a pipe accommodating portion 134 formed along a short length of approximately half the short side of the cold pallet 130. Only the flexible pipe 132 is exposed from the pipe storage portion 134 and is provided so as to be able to be pulled out. The joint member 128 is located inside the back plate 108.

  According to the cold insulation pallet 130 of this embodiment, since the reinforcing plate 106 is not used, the strength is slightly reduced, but the weight is light and the handling property is good. Further, the ratio of the surface plate 102 in contact with the pipe unit 30 by the heat exchange pipe 36 is increased as compared with the first embodiment, and there is a cooling effect to every corner.

  Further, the joint member 128 of the flexible pipe 132 is not exposed on the back surface, the force does not concentrate on the joint member 128 through the flexible member 132, the durability is high, and the flexible pipe 132 has no stress concentration. Good handling.

  Next, a fifth embodiment of the cold pallet according to the present invention will be described with reference to FIGS. Here, the same members as those in the fourth embodiment are denoted by the same reference numerals, and the description thereof is omitted. The cold pallet 140 of this embodiment has the same structure as that of the fourth embodiment, and the four edges of the surface plate 142 cover the sides of the side cover 110 as shown in FIGS. A bent portion 142a of the surface plate 142 is fitted into a mounting groove 112 formed in the horizontal direction, just above the notch groove 118, and is fixed by a sealant. The four corners 142b of the surface plate 142 are cut out in an L shape so that the four sides of the surface plate 142 can be easily bent.

  According to the cold insulation pallet 140 of this embodiment, it has the same effect as the above embodiment, and also when the object to be cooled is dragged from the soil and pulled up onto the cold insulation pallet 140, the angle hitting the surface of the object to be cooled. There is no portion on the surface plate 142, and the surface of the object to be cooled is not damaged. Therefore, the merchantability of the object to be cooled is not impaired, and handling of the object to be cooled is facilitated.

  Next, a sixth embodiment of the cold pallet according to the present invention will be described with reference to FIGS. Here, the same members as those in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted. The cold insulation pallet 150 of this embodiment can take the appropriate structure of each said embodiment, Comprising: Each cold insulation pallet 150 is provided with the control box 154 for temperature control. As shown in FIG. 19, the cold pallet 150 has a control box 154 housed in a housing portion 152 on the back side, and a refrigerant pipe 156 and an electric cable 158 are integrated from the control box 154 into a flexible pipe. 160 extends. A connector 162 for connecting the refrigerant and the electric system is provided at the distal end of the flexible pipe 160. The connector 162 is housed in the housing 152 and is provided so that it can be pulled out.

  In the control box 154, as shown in FIG. 20, a solenoid valve 164 provided in the refrigerant conduit 156, a control microcomputer board 166, and a temperature sensor provided in contact with the refrigerant conduit 156 are provided. A thermistor 168 is provided. The refrigerant conduit 156 to which the thermistor 168 is attached is connected to either the supply side main pipe 32 or the return side main pipe 34.

  The control wiring 165 of the electromagnetic valve 164 and the output line 169 of the thermistor 168 are connected to a control board 170 provided with a microcomputer 166. For example, as shown in FIG. 21, the thermistor 168 is attached to the refrigerant conduit 156 in a reliable manner by a resilient clip 172 made of metal or resin. Further, as shown in FIG. 22, the electric cable 158 includes a power cable 173, a ground wire 174, and a control cable 175 that are combined into one cable.

  The cold insulation pallet 150 of this embodiment is connected to, for example, a refrigerant pipe and electric wiring arranged in soil concrete (not shown) by a connector 162, and the electric cable 158 is connected to a power source and a control device (not shown), and predetermined control is performed. Is done. Thereby, the flow control of the refrigerant such as the antifreeze liquid is performed more finely for each cold pallet 150 or for each predetermined section, and each cold pallet 150 can be cooled to an accurate temperature. Further, the flexible pipe 160 is easily connected to a refrigerant pipe, a power source, a control device, and the like via the connector 162, and can be stored in the storage unit 152, so that it does not get in the way.

  In addition, the cold pallet of this invention is not limited to the said embodiment, The material of a panel can be metals other than aluminum and stainless steel, resin, concrete, and stone materials, and its durability and workability are good. Anything is fine. In addition, this cold pallet can be used for things other than fish. Further, the surface treatment may be performed by coating for enhancing the cooling effect, other film treatment, painting, or the like. Furthermore, a surface treatment with a photocatalyst, an antibacterial treatment with silver or copper, an antibacterial treatment with a material that does not affect foods, or a treatment with a bactericidal effect may be performed.

They are a top view (A) and a longitudinal direction sectional view (B) of a cold insulation pallet in the state where a pipe unit of a first embodiment of this invention is attached. It is a short side direction sectional view of the cold pallet of this embodiment. It is a rear view of the cool pallet of this embodiment. It is a perspective view which shows the use condition of the cold preservation pallet of this embodiment. It is a perspective view which shows the other use condition of the cold preservation pallet of this embodiment. It is the top view (A) and side view (B) of the cool pallet of 2nd embodiment of this invention. It is sectional drawing of the short side direction of the cold insulation pallet of this embodiment. It is a perspective view of the cool pallet of this embodiment. It is a top view which shows the use condition of the cool pallet of this embodiment. It is sectional drawing which shows the other use condition of the cold preservation pallet of this embodiment. It is sectional drawing which shows the further another use condition of the cold preservation pallet of this embodiment. It is a fragmentary sectional view of the cold insulation pallet of 3rd embodiment of this invention. It is the partial top view (A), partial left view (B), and partial front view (C) of the cold pallet of 4th embodiment of this invention. It is a partial bottom view of the cold pallet of this embodiment. It is a partial expanded longitudinal cross-sectional view of the cool pallet of this embodiment. It is the partial top view (A), partial left view (B), and partial front view (C) of the cold pallet of 5th embodiment of this invention. It is a partial bottom view of the cold pallet of this embodiment. It is a partial expanded longitudinal cross-sectional view of the cool pallet of this embodiment. It is a fragmentary perspective view which shows the back surface of the cold insulation pallet of 6th embodiment of this invention. It is the schematic which shows the control box of the cool pallet of this embodiment. It is a schematic perspective view which shows the attachment state of the thermistor of this embodiment. It is the schematic which shows the control board of this embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Cold pallet 12 Aluminum panel 14 Mounting part 16 Connection member 20 Back plate 22 Heat exchange pipe accommodation groove 30 Pipe unit 32 Supply side main pipe 34 Return side main pipe 36 Heat exchange pipe 38 Plug 40, 44 Joint member 42, 46 Flexible Pipe 48, 50 Pipe storage part 52 Heat insulating material 54 Side cover 56 Supply side refrigerant pipe 58 Return side refrigerant pipe 60 Socket 62 Dirt

Claims (10)

  The main pipe on the supply side of the heat exchange fluid, the main pipe on the return side of the heat exchange fluid, and a plurality of thin heat exchange pipes that are respectively communicated between the main pipes. A pipe unit, and a panel on which the heat exchange pipes are stored in contact with the back side and the object to be cooled is placed on the front side. A back plate serving as an installation surface is disposed on the back side of the panel with a predetermined distance from the panel. And a heat insulating material is filled between the panel and the back plate, and the pipe unit is provided with a joint member for connecting the main pipe and an external refrigerant pipe. Cold pallet to do.   The panel has an external member that is connected to the peripheral portion thereof and smoothes the step of the corner portion, and a contact portion between the panel and the external member is filled with a sealing agent and liquid-tightly connected. The cold-retaining pallet according to claim 1.   A flexible pipe is connected to the joint member of the pipe unit, and a pipe storage portion for storing the flexible pipe is provided on the back side of the panel along each main pipe. The cold insulation pallet according to claim 1, further comprising a plug connected to the refrigerant pipe.   The panel is made of aluminum, the side edge portion of the panel has an engaging portion for connecting the panels flush with each other, and a heat exchange pipe storage groove for individually storing the heat exchange pipes on the back side. The cold-retaining pallet according to claim 1 or 2, characterized by being provided.   The cold insulation pallet according to claim 1 or 2, wherein the panel is made of a stainless steel plate, and the heat exchange pipe is bonded to the back surface.   The cold insulation pallet according to claim 5, wherein a reinforcing plate is integrally joined to the back side of the panel together with the heat exchange pipe.   The cold insulation pallet according to claim 6, wherein a heat insulating material is filled between the reinforcing plate and the back plate.   The cold insulation pallet according to claim 1 or 2, wherein a temperature sensor is provided in the main pipe and the temperature of the heat exchange pipe is monitored.   The cold storage pallet according to claim 1 or 2, wherein a flow rate control valve is attached to the main pipe to control the flow rate of the refrigerant. 2. A temperature sensor and a flow rate control valve are provided in the main pipe, and a power supply and control cable can be detachably connected to the temperature sensor and the flow rate control valve via a connector. Or the cold preservation pallet of 2.

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