JP6386275B2 - Cold storage - Google Patents

Description

  The present invention relates to a cool box equipped with a cool storage body enclosing a cool storage agent.

  A conventional cool box provided with a cold storage body is disclosed in Patent Document 1. This cool box includes a main body having a heat insulating box that forms a storage chamber having an open top surface, and a door that opens and closes the top surface of the storage chamber. The heat insulating box is formed by filling a foam heat insulating material between the inner box and the outer box, and the side wall and the bottom wall of the storage chamber are formed by the heat insulating wall. A cooling pipe connected to the compressor is embedded in the heat insulating wall, and the cooling pipe is arranged in contact with the inner box forming the inner surface of the storage chamber.

  On the side wall of the storage chamber, a plurality of cool storage bodies are installed by attachment members. In the cool storage body, a liquid cool storage agent is enclosed in a flat cool storage container having a substantially rectangular shape in plan view. The mounting member extends in the horizontal direction and has an L-shaped cross section, and a pair of mounting members are juxtaposed in the vertical direction on the side wall of the storage chamber and screwed. The upper and lower ends of the cold storage body are locked by the attachment member, and the cold storage body is positioned in the vertical direction. Further, a support member that supports the side surface of the regenerator that is adjacent in the horizontal direction is attached on the attachment member, and the regenerator is positioned in the horizontal direction by the support member.

  When the storage chamber is cooled by the cooling pipe, the regenerator of the regenerator is frozen and stored. Thereby, the inside of a store room is cooled by the cold heat discharged | emitted from a cool storage body, and the power saving of a cool box can be achieved. In addition, when the power supply to the cold storage is stopped, cold heat can be released from the cold storage body to keep the inside of the storage room cold.

No. 1-75791 (pages 4-7, Fig. 3)

  However, according to the conventional cool box, there is a problem that the manufacturing cost of the cool box increases because a process of screwing the attachment member to the side wall of the storage chamber is required. In addition, since the screws of the mounting member are removed and attached when the cold storage body is attached or detached for replacement or cleaning, there is a problem that the convenience of the cool box is deteriorated. At this time, if the regenerator is slid sideways and pulled out with the attachment member attached, the space for installing the regenerator is reduced and the cooling effect is lowered.

  In addition, since the cold storage body is supported by the attachment member screwed to the side wall of the storage chamber, it is necessary to increase the strength of the inner box that forms the inner surface of the storage chamber. For this reason, when the thickness of the inner box is increased, the heat transfer efficiency of the cold heat from the cooling pipe disposed on the outer surface of the inner box to the cold storage body is lowered, and the freezing time of the cold storage agent is lengthened. Thereby, there also existed a problem which the power consumption of a cold storage became large.

  It is an object of the present invention to provide a cool box that can improve convenience and reduce costs and save power.

  In order to achieve the above object, the present invention provides a main body having a storage chamber having an upper surface opened and surrounded by a heat insulating wall, a door for opening and closing the upper surface of the storage chamber, and a side wall of the storage chamber. Then, in the cool box provided with a cooling unit that cools the storage chamber, a cool storage body that encloses a cool storage agent frozen by cooling of the cooling unit, and a holding member that holds the cool storage body, the holding member is the The frame portion of the one holding member disposed in the storage chamber, having an annular frame portion that fits into the storage chamber, and a support portion that is erected on the inner peripheral side of the outer peripheral end of the frame portion The frame portion of the other holding member is placed on the upper surface of the cold storage body placed thereon, and the cold storage body is held between a side wall of the storage chamber and the support portion. .

  According to this configuration, the holding member is restricted from moving in the horizontal direction by fitting the annular frame portion into the storage chamber. The cold storage body is sandwiched between the lower holding member and the upper holding member, and is arranged on the outer peripheral side of the support portion along the side wall of the storage chamber. The support portion may be formed in an annular shape that is closed in the circumferential direction, or may be divided in the circumferential direction. When the storage chamber is cooled by the cooling section, the cool storage agent of the cool storage body is frozen, and when cooling by the cooling section is stopped, cold heat is released from the cool storage body into the storage chamber. When the upper holding member is taken out from the storage chamber, the cool storage body can be attached and detached from above.

  Further, the present invention provides the cool storage having the above-described configuration, wherein a plurality of the regenerators are installed in the vertical direction via the holding members, and the holding member disposed between the regenerators adjacent vertically is an upper surface of the frame portion. And the said support part is standingly arranged by the lower surface, It is characterized by the above-mentioned.

  Moreover, the present invention is characterized in that, in the cool box having the above configuration, the support portion biases the cold storage body toward the side wall of the storage chamber.

  According to the present invention, in the cool box having the above configuration, an elastic seal member is provided on the outer peripheral surface of the support portion.

  According to the present invention, in the cool box having the above-described configuration, the holding member is formed of a shape memory alloy, and the support member is deformed when the temperature becomes lower than a predetermined temperature to press the cool storage body toward the side wall of the storage chamber. It is characterized by doing.

  Further, the present invention is characterized in that, in the cool box having the above-described configuration, an engagement portion that engages with the outer surface of the support portion and the cold storage body is provided.

  Moreover, in the cool box having the above-described configuration, the present invention has a drainage hole on the bottom surface of the storage chamber, and the holding member disposed on the bottom surface of the storage chamber has an opening facing the drainage hole. It is a feature.

  According to the present invention, the holding member has an annular frame portion that fits into the storage chamber, and a support portion that is erected on the inner peripheral side with respect to the outer peripheral end of the frame portion. The frame part of another holding member is mounted on the upper surface of the cool storage body placed on the cool storage body, and the cool storage body is held between the side wall of the storage chamber and the support part. For this reason, while being able to attach a holding member easily without screwing, an upper holding member can be taken out and a cool storage body can be attached or detached easily. Further, since the holding member is not screwed, it is not necessary to form the inner surface of the side wall of the storage chamber with high strength, and the heat transfer efficiency of the cold heat from the cooling unit arranged in the side wall to the cold storage body can be improved. Therefore, the convenience of the cool box can be improved and cost reduction and power saving can be achieved.

The front view which shows the cool box of 1st Embodiment of this invention. The side view which shows the cool box of 1st Embodiment of this invention. The top view which shows the cool box of 1st Embodiment of this invention. Top surface sectional drawing which shows the main-body part of the cool box of 1st Embodiment of this invention. Front sectional drawing which shows the main-body part of the cool box of 1st Embodiment of this invention. The front view which shows the cool storage body of the cool box of 1st Embodiment of this invention. The rear view which shows the cool storage body of the cool box of 1st Embodiment of this invention The top view which shows the cool storage body of the cool box of 1st Embodiment of this invention. Side surface sectional drawing which shows the cool storage body of the cool box of 1st Embodiment of this invention The disassembled perspective view which shows the cool storage body and holding member of the cool box of 1st Embodiment of this invention. The top view which shows the principal part of the main-body part of the cool box of 1st Embodiment of this invention. Front sectional drawing which shows the main-body part of the cool box of 2nd Embodiment of this invention. The disassembled perspective view which shows the cool storage body and holding member of the cool box of 2nd Embodiment of this invention. Front sectional drawing which shows the main-body part of the cool box of 3rd Embodiment of this invention. The disassembled perspective view which shows the cool storage body and holding member of the cool box of 3rd Embodiment of this invention. The top view which shows the holding member of the cool box of 4th Embodiment of this invention. Front sectional drawing which shows the principal part of the holding member of the cool box of 4th Embodiment of this invention. Front sectional drawing which shows the principal part of the holding member of the cool box of 5th Embodiment of this invention.

<First Embodiment>
Embodiments of the present invention will be described below with reference to the drawings. FIG.1, FIG.2, FIG.3 is the front view, side view, and top view which show 1st Embodiment cold storage. The cool box 1 includes a main body 2 having a storage chamber 20 having an upper surface opened, and an open / close door 3 (door) that pivots on the back side of the main body 2 to open and close the upper surface. The open / close door 3 is opened and closed by gripping a handle 3a provided at the front end.

  A machine room 10 is provided at one end of the main body 2. The machine room 10 has an opening (not shown) on the back surface and one side surface, and the opening is closed by the panel 11 having the air holes 11a. A display panel 12 is provided on the front surface of the machine room 10.

  The display panel 12 is provided with a lamp or the like that can check the energized state of the cool box 1 and the temperature in the cool box 1. Further, an external power supply terminal for supplying electricity to an external device using a part of the power supplied to the cool box 1 may be arranged on the display panel 12. As the external power supply terminal, for example, a general-purpose terminal such as a USB terminal or an automobile cigar jack can be used to supply power to a low-power device such as a mobile phone. In addition, the display panel 12 may be provided with an operation unit such as a temperature adjustment knob in the cool box 1.

  4 and 5 show a top sectional view and a front sectional view of the main body 2. The main body 2 has a heat insulating box 24 filled with a foam heat insulating material 23 between the outer box 21 and the inner box 22, and a storage chamber 20 surrounded by a heat insulating wall is formed by the heat insulating box 24. A compressor 13 that operates a refrigeration cycle is installed in the machine room 10 provided on the side of the heat insulation box 24. A cooling unit 25 composed of a refrigerant pipe connected to the compressor 13 is embedded in the four side walls 20 a filled with the foam heat insulating material 23 of the storage chamber 20. When the compressor 13 is driven, the inside of the storage chamber 20 is cooled by the cooling unit 25 disposed in the low temperature part of the refrigeration cycle.

  A plurality of cool storage bodies 30 held by holding members 41 and 42 are laid on the inner surface of the storage chamber 20 formed by the inner box 22. As will be described in detail later, the cold storage body 30 performs cold storage by freezing the cold storage agent 31 (see FIG. 9) enclosed in the cold storage container 32 (see FIG. 6). In the present embodiment, three cool storage bodies 30 are arranged in parallel in the left-right direction on the front and rear inner surfaces of the storage chamber 20, and two cool storage bodies 30 are arranged in the front-rear direction on the left and right inner surfaces.

  6, 7, and 8 show a front view, a rear view, and a top view of the regenerator 30. FIG. 9 shows a side sectional view of the regenerator 30. The cool storage body 30 encloses a liquid cool storage agent 31 in a cool storage container 32 of a resin molded product, stores the cold by freezing the cool storage agent 31, and keeps the inside of the storage chamber 20 (see FIG. 4) cold.

  The cold storage container 32 has a substantially rectangular planar shape, and the vertical direction is longer than the horizontal direction. Moreover, the cool storage container 32 is formed in the flat shape thin in the thickness direction. The cool storage body 30 is disposed so that the back surface 32b of the cool storage container 32 is in contact with the inner surface of the storage chamber 20 (see FIG. 4). The flat cold storage container 32 can ensure a large internal volume of the storage chamber 20 and can also enhance the cold insulation performance by covering the inner wall of the storage chamber 20 with the cold storage body 30.

  An inlet 37 for the cold storage agent 31 is provided on the upper surface 32 c of the cold storage container 32. The inlet 37 is sealed after the cold storage agent 31 is injected. Since the cool storage agent 31 expands during freezing, a space is provided between the liquid surface H of the cool storage agent 31 and the upper surface 32 c of the cool storage container 32.

  A large number of quadrangular pyramid-shaped recesses 34 are provided on the front surface 32 a of the cold storage container 32. The surface area of the front surface 32a of the cold storage container 32 is increased by the concave portion 34, and heat exchange between the cold storage body 30 and the air in the storage chamber 20 can be promoted to improve the cold insulation performance.

  The back surface 32b of the cold storage container 32 has a substantially flat shape without forming the recess 34. Therefore, the substantially planar back surface 32b is disposed in close contact with the side wall 20a (see FIG. 5) of the storage chamber 20, and the cold heat of the cooling unit 25 can be efficiently transmitted to the cold storage body 30.

  The cold storage container 32 is provided with fixing portions 35 and 36 for fixing the front surface 32a and the back surface 32b facing each other in the thickness direction. The adhering portion 35 is provided in the central portion of the cold storage container 32 in the vertical direction and the horizontal direction. A plurality (five in each embodiment) of the fixing portions 36 are provided between the upper surface 32 c and the fixing portion 35 and between the lower surface 32 d and the fixing portion 35 of the cold storage container 32. The deformation of the cold storage container 32 when the cold storage agent 31 freezes is suppressed by the fixing portions 35 and 36.

  FIG. 10 shows an exploded perspective view of the cold storage body 30 and the holding members 41 and 42 arranged inside the storage chamber 20. In the figure, the illustration of the cool storage body 30 on the front side is omitted. The holding members 41 and 42 are formed in the same shape by a resin molded product or metal, and are arranged in the up-down direction reversed.

  The holding members 41 and 42 have a frame part 45 and a support part 46. The frame portion 45 is formed in an annular shape and is fitted to the inner surface of the storage chamber 20 (see FIG. 5). The support part 46 is erected on the inner peripheral side of the outer peripheral end of the frame part 45 and is formed in an annular shape closed in the circumferential direction. The support portion 46 of the holding member 41 arranged below protrudes from the upper surface of the frame portion 45, and the support portion 46 of the holding member 42 arranged above protrudes from the lower surface of the frame portion 45.

  4, 5, and 10, the holding member 41 is installed on the bottom surface of the storage chamber 20 with the support portion 46 facing upward so as to fit into the storage chamber 20. The plurality of regenerators 30 are placed on the frame portion 45 of the holding member 41 and arranged on the outer peripheral side of the support portion 46. On the cool storage body 30, the frame portion 45 of the holding member 42 is fitted and placed in the storage chamber 20 with the support portion 46 facing downward, and the cool storage body 30 is arranged on the outer peripheral side of the support portion 46 of the holding member 42. Is done.

  Since the frame portion 45 is fitted into the storage chamber 20, the holding members 41 and 42 are restricted from moving in the horizontal plane. Thereby, the cool storage body 30 is hold | maintained between the side wall 20a of the storage chamber 20, and the up-and-down support part 46, and omission of the cool storage body 30 is prevented.

  For this reason, the holding members 41 and 42 can be easily attached without screwing. Further, the upper holding member 42 can be taken out, the cold storage body 30 can be attached and detached, and the cold storage body 30 can be cleaned or replaced. Further, since the holding members 41 and 42 are not screwed, it is not necessary to form the inner box 22 with high strength, and the thickness of the inner box 22 may be reduced. Thereby, the heat-transfer efficiency of the cold heat from the cooling part 25 distribute | arranged in the side wall 20a to the cool storage body 30 can be improved.

  Further, since the thickness of the inner box 22 can be reduced, an increase in weight and cost can be suppressed even when a heat conductive metal (such as aluminum or stainless steel) is used. For this reason, it can be set as the cold storage 1 excellent in not only cooling efficiency but reliability and cost power.

  Further, the inner box 22 does not need a screw receiving structure for screwing the holding members 41 and 42. For this reason, the freedom degree of arrangement | positioning of the cooling part 25 improves, and the possibility of damaging the cooling part 25 with a screw when screwing the holding members 41 and 42 can be eliminated. Therefore, it can be set as the cold storage 1 with high reliability and safety.

  Note that a gap is provided between the regenerators 30 adjacent in the horizontal direction, and ribs that fit into the gap may protrude from the frame part 45 or the support part 46. Moreover, you may arrange | position the cool storage body 30 adjacent to a horizontal direction mutually.

  FIG. 11 is a top view showing a main part in a state where the lower holding member 41 is arranged in the storage chamber 20. A drain hole 20 b for draining condensed water or the like is provided at the right rear corner of the bottom surface of the storage chamber 20. The holding member 41 is provided with an opening 47 facing the drain hole 20b. The opening 47 is formed by opening the inner peripheral side of the holding member 41. The opening 47 prevents the drain hole 20b from being blocked, and condensed water or the like generated on the bottom surface of the storage chamber 20 or the side wall 20a is guided to the drain hole 20b through the opening 47. The opening 47 may be formed by opening the outer peripheral side of the holding member 41, or may be formed by a through hole having a closed periphery on the frame 45.

  In the cool box 1 having the above configuration, when the compressor 13 is driven, the inside of the storage chamber 20 is cooled by the cooling unit 25, and the cold storage agent 31 of the cold storage body 30 is frozen and stored cold. Thereby, the inside of the storage chamber 20 is cooled by the cold heat discharged from the cold storage body 30, and power saving of the cool box 1 can be achieved. In addition, when the power supply to the cool box 1 is stopped, the cold storage can be released from the cool storage body 30 to keep the inside of the storage room 20 cool.

  According to the present embodiment, the holding members 41, 42 have the annular frame portion 45 that fits into the storage chamber 20, and the support portion 46 that is erected on the inner peripheral side with respect to the outer peripheral end of the frame portion 45. And the frame part 45 of the holding member 42 is mounted on the upper surface of the cool storage body 30 mounted on the frame part 45 of the holding member 41, and the cool storage body 30 is located between the side wall 20 a of the storage chamber 20 and the support part 46. Retained.

  Therefore, the holding members 41 and 42 can be easily attached without screwing, and the upper storage member 42 can be taken out and the regenerator 30 can be easily attached and detached. In addition, since the holding members 41 and 42 are not screwed, it is not necessary to form the inner surface (inner box 22) of the side wall 20a of the storage chamber 20 with high strength, and the cooling unit 25 disposed in the side wall 20a is connected to the regenerator 30. The heat transfer efficiency of cold heat can be improved. Therefore, the convenience of the cool box 1 can be improved, and cost reduction and power saving can be achieved.

  The storage chamber 20 has a drain hole 20b on the bottom surface, and the holding member 41 disposed on the bottom surface of the storage chamber 20 has an opening 47 facing the drain hole 20b. Thereby, blockage of the drain hole 20b can be prevented, and condensed water or the like in the storage chamber 20 can be easily guided to the drain hole 20b through the opening 47 and drained.

Second Embodiment
Next, FIG. 12 has shown front sectional drawing of the main-body part 2 of the cool box 1 of 2nd Embodiment. For convenience of explanation, the same reference numerals are given to the same parts as those in the first embodiment shown in FIGS. In the present embodiment, the regenerators 30 are installed in two upper and lower stages in the storage chamber 20, and a holding member 43 is provided between the upper and lower regenerators 30. Other parts are the same as those in the first embodiment.

  The machine room 10 is provided at the lower part of one end of the main body 2, and the storage room 20 is provided in communication with the side and upper side of the machine room 10. In the lower part of the storage chamber 20, three cool storage bodies 30 are juxtaposed in the left-right direction on the front and rear inner surfaces, and two cool storage bodies 30 are juxtaposed in the front-rear direction on the left inner surface. The side wall 20a adjacent to the machine room 10 of the storage room 20 is not provided with the cooling unit 25, and thus the cool storage body 30 on the inner surface on the right side of the storage room 20 is omitted. In the upper part of the storage room 20 including the upper part of the machine room 10, four cool storage bodies 30 are arranged in parallel in the left-right direction on the front and rear inner surfaces, and two cool storage bodies 30 are arranged in the front-rear direction on the left and right inner surfaces. It is installed side by side.

  FIG. 13 shows an exploded perspective view of the cool storage body 30 and the holding members 41, 42, 43 arranged inside the storage chamber 20. In the figure, the illustration of the cool storage body 30 on the front side is omitted. The holding member 41 disposed on the bottom surface of the storage chamber 20 is formed in the same manner as in the first embodiment, and the support portion 46 on the machine chamber 10 side is erected on the outer peripheral edge of the frame portion 45. Since the cool storage body 30 is not installed facing the machine room 10, the support part 46 on the machine room 10 side of the holding member 41 is arranged along the side wall 20 a so that unnecessary protrusions are not formed in the storage room 20. ing. Thereby, the convenience of the cool box 1 can be improved.

  Note that the support portion 46 on the machine chamber 10 side of the holding member 41 may be removed, and the U-shaped support portion 46 may be formed on the frame portion 45. Further, when the cooling unit 25 can be provided on the side wall 20 a adjacent to the machine room 10 of the storage chamber 20, the cool storage body 30 may be disposed on the inner surface on the right side of the storage chamber 20. In this case, the holding member 41 has the same shape as that of the first embodiment.

  The holding member 42 disposed on the upper side has the same shape as that of the first embodiment and is longer in the left-right direction than the first embodiment, and the support portion 46 is erected on the lower surface of the frame portion 45.

  As for the holding member 43 arranged between the regenerators 30 adjacent to each other in the vertical direction, support portions 46 are erected on the upper surface and the lower surface of the annular frame portion 45 fitted in the storage chamber 20. The support portion 46 of the holding member 43 is provided on the inner peripheral side with respect to the outer peripheral end of the frame portion 45 similarly to the holding members 41 and 42.

  On the bottom surface of the storage chamber 20, the holding member 41 is fitted and installed in the storage chamber 20 with the support portion 46 facing upward. The plurality of lower-stage regenerators 30 are placed on the frame portion 45 of the holding member 41 and arranged on the outer peripheral side of the support portion 46. The frame portion 45 of the holding member 43 is fitted and placed in the storage chamber 20 on the lower cold storage body 30, and the cold storage body 30 is arranged on the outer peripheral side of the support portion 46 on the lower surface of the holding member 43.

  The plurality of upper regenerators 30 are placed on the frame portion 45 of the holding member 43 and arranged on the outer peripheral side of the upper support portion 46. A frame portion 45 of the holding member 42 is placed in the storage chamber 20 with the support portion 46 facing downward on the upper cool storage body 30, and the cool storage body 30 is on the outer peripheral side of the support portion 46 of the holding member 42. Arranged.

  Since the frame portion 45 fits into the storage chamber 20, the holding members 41, 42, and 43 are restricted from moving in the horizontal plane. Thereby, the cool storage body 30 is hold | maintained between the side wall 20a of the storage chamber 20, and each support part 46, and omission of the cool storage body 30 is prevented.

  According to this embodiment, the same effect as that of the first embodiment can be obtained. In addition, since the holding member 43 disposed between the upper and lower adjacent regenerators 30 is provided with the support portions 46 standing on the upper surface and the lower surface of the frame portion 45, it is possible to easily install a plurality of stages of the regenerators 30 vertically. Can do. In addition, by providing the some holding member 43, you may install the cool storage body 30 up and down in three steps or more.

<Third Embodiment>
Next, FIG. 14 has shown front sectional drawing of the main-body part 2 of the cool box 1 of 3rd Embodiment. FIG. 15 is an exploded perspective view of the regenerator 30 and the holding members 41, 42, 43 arranged inside the storage chamber 20. For convenience of explanation, the same reference numerals are given to the same parts as those in the second embodiment shown in FIGS. In this embodiment, the holding member 43 disposed between the upper and lower regenerators 30 is divided into a holding member 43a and a holding member 43b. Other parts are the same as those of the second embodiment. In addition, in FIG. 15, illustration of the cool storage body 30 of the front side is abbreviate | omitted.

  The holding member 43a and the holding member 43b are formed in the same shape as the holding member 42, and are arranged in the up-down direction reversed. As with the holding member 42, the holding member 43 a placed on the lower regenerator 30 is provided with a support portion 46 on the lower surface of the frame portion 45. The holding member 43b has a support portion 46 standing on the upper surface of the frame portion 45, and is placed on the holding member 43a.

  According to this embodiment, the same effect as that of the second embodiment can be obtained. Moreover, since the holding member 43a and the holding member 43b are formed in the same shape as the holding member 42, it is possible to reduce the manufacturing cost of the cool box 1 by using common parts.

<Fourth embodiment>
Next, FIG. 16 has shown the top view of the holding member 41 of the cool box 1 of 4th Embodiment. For convenience of explanation, the same reference numerals are given to the same parts as those in the first embodiment shown in FIGS. This embodiment differs in the shape of the holding members 41 and 42 (refer FIG. 10) with respect to 1st Embodiment. Other parts are the same as those in the first embodiment.

  The holding members 41 and 42 are formed in the same shape, and are arranged upside down. The holding member 41 is provided with a protrusion 45 a that protrudes outward around the annular frame 45. The protrusion 45 a comes into contact with the inner surface of the storage chamber 20 (see FIG. 4), and the frame portion 45 fits into the storage chamber 20. A plurality of support portions 46 are erected on the inner peripheral side with respect to the outer peripheral end of the protruding portion 45 a, and a plurality of support portions 46 are provided in the circumferential direction corresponding to the respective cold storage bodies 30. Thereby, the support part 46 can be easily elastically deformed in the tilting direction.

  FIG. 17 is an enlarged front cross-sectional view of a main part passing over the support portion 46 of the holding member 41. An engaging claw 46 a that protrudes outward is provided at the open end of the support portion 46. An engagement groove 38 that engages with the engagement claw 46 a is recessed in the front surface 32 a of the cold storage container 32 of the cold storage body 30. The engagement groove 38 is formed in a shape whose periphery is closed when the front surface 32a of the cold storage container 32 is viewed from the front. The engaging claw 46a and the engaging groove 38 constitute an engaging portion that engages with each other.

  The regenerator 30 installed on the frame 45 is urged in the direction of the side wall 20a (see FIG. 5) of the storage chamber 20 by the elastic deformation of the support 46, and the engagement claw 46a and the engagement groove 38 are engaged. Held. Thereby, drop-off of the cool storage body 30 can be prevented reliably. Moreover, the back surface 32b of the cold storage container 32 can be brought into close contact with the side wall 20a of the storage chamber 20 (see FIG. 5). Therefore, the cold heat of the cooling unit 25 (see FIG. 5) can be efficiently transmitted to the cold storage body 30.

  Furthermore, by disposing the engaging portions discretely for each cool storage body 30, not only the cool storage body 30 is dropped but also the horizontal movement of the cool storage body 30 along the side wall 20a of the storage chamber 20 can be suppressed. . For this reason, formation of the clearance gap between the cool storage body 30 and the side wall 20a by horizontal movement of the cool storage body 30 can be prevented, and the back surface 32b of the cool storage container 32 can be reliably brought into close contact with the side wall 20a. Moreover, it can prevent that the cool storage body 30 slip | deviates when a user accommodates a stored item in the storage chamber 20. FIG. Therefore, it can be set as the cold storage 1 of higher quality.

  According to this embodiment, the same effect as that of the first embodiment can be obtained. Moreover, since the support part 46 urges the cool storage body 30 in the direction of the side wall 20a of the storage chamber 20, it is possible to reliably prevent the cool storage body 30 from falling off and to efficiently transmit the cold heat of the cooling part 25 to the cool storage body 30. Can do.

  In addition, the engaging claw 46a may be omitted, the support portion 46 may be formed so that the tip thereof is inclined toward the outer peripheral side, and the cold accumulator 30 may be urged by elastic deformation, or the engaging groove 38 may be omitted. However, it is more desirable to provide an engaging portion that engages with each other by the engaging claw 46a and the engaging groove 38 as in the present embodiment because the cool storage body 30 can be more reliably prevented from falling off.

  Moreover, since the protrusion part 45a which protrudes toward the outer periphery around the frame part 45 fits into the storage chamber 20, the weight reduction of the holding members 41 and 42 can be achieved.

  Moreover, since the support part 46 was divided | segmented into the circumferential direction, the support part 46 which elastically deforms and energizes the cool storage body 30 can be implement | achieved easily.

  In the present embodiment, the support portion 46 may be divided in the circumferential direction, and one or both of the protrusion 45a and the engaging claw 46 may be omitted. Further, the support portion 46 may be formed in an annular shape that is closed in the circumferential direction, and one or both of the protruding portion 45a and the engaging claw 46 may be provided.

  Similarly to the present embodiment, the holding members 41, 42, and 43 of the cool box 1 of the second and third embodiments may be provided with the protrusion 45a on the frame portion 45, and the support portion 46 is divided in the circumferential direction. May be. Further, the holding members 41, 42, 43 and the cold storage body 30 of the cool box 1 of the second and third embodiments may also be provided with the engaging claws 46a and the engaging grooves 38 as in the present embodiment.

<Fifth Embodiment>
Next, FIG. 18: has shown front sectional drawing to which the principal part passing on the support part 46 of the holding member 41 of the cool box 1 of 5th Embodiment was expanded. For convenience of explanation, the same reference numerals are given to the same parts as those in the first embodiment shown in FIGS. In the present embodiment, a seal member 48 is provided on the holding members 41 and 42 (see FIG. 10). Other parts are the same as those in the first embodiment.

  The seal member 48 is formed of an elastic body such as synthetic rubber or soft resin, and is fixed on the outer peripheral surface of the support portion 46 of the holding member 41 and the holding member 42 (see FIG. 10).

  The cool storage body 30 installed on the frame 45 is urged in the direction of the side wall 20a (see FIG. 5) of the storage chamber 20 by elastic deformation of the seal member 48 on the support 46. Thereby, drop-off of the cool storage body 30 can be prevented reliably. Moreover, the back surface 32b of the cold storage container 32 can be brought into close contact with the side wall 20a of the storage chamber 20 (see FIG. 5). Therefore, the cold heat of the cooling unit 25 (see FIG. 5) can be efficiently transmitted to the cold storage body 30.

  According to this embodiment, the same effect as that of the first embodiment can be obtained. Moreover, since the support part 46 urges | biases the cool storage body 30 toward the side wall 20a of the storage chamber 20 via the sealing member 48, while the fall of the cool storage body 30 can be prevented reliably, the cold heat of the cooling part 25 is efficiently performed. It can be transmitted to the cold storage body 30.

  The seal member 48 may be made of a material that can be elastically deformed at room temperature or the like but whose elastic force is reduced at a low temperature such as a solidification temperature of the cold storage agent 31 or lower. By setting it as such a material, when the inside of the storage chamber 20 becomes high temperature at the time of replacement | exchange of the cool storage body 30, the cool storage body 30 can be attached or detached easily. Further, when the inside of the storage chamber 20 is cooled by the cold storage body 30, the seal member 48 is cured and deformation is suppressed, so that the cold storage body 30 can be reliably pressed in the direction of the side wall 20a of the storage chamber 20. it can.

  In the present embodiment, the support portion 46 may be divided in the circumferential direction as in the fourth embodiment. Moreover, you may provide the sealing member 48 similar to this embodiment in the holding members 41, 42, and 43 of the cool box of 2nd, 3rd embodiment.

<Sixth Embodiment>
Next, the cool box 1 of 6th Embodiment is demonstrated. The present embodiment is configured in the same manner as the first embodiment shown in FIGS. 1 to 11 described above, and the holding members 41 and 42 are formed of a shape memory alloy. Other parts are the same as those in the first embodiment.

  The holding members 41 and 42 are formed of, for example, a shape memory alloy such as a NiTi alloy having a transformation temperature of 0 ° C. or lower. The support part 46 is erected in the vertical direction with respect to the frame part 45 at a temperature higher than the transformation temperature, and is separated from the regenerator 30. Further, when the support portion 46 becomes lower than the transformation temperature, it is plastically deformed and bent so as to press the cold storage body 30.

  When the inside of the storage chamber 20 is cooled to a temperature lower than the transformation temperature by the cooling portion 25, the cool storage body 30 (see FIG. 5) is moved in the direction of the side wall 20a (see FIG. 5) of the storage chamber 20 by plastic deformation of the support portion 46. Press. At this time, since the support portion 46 is elastically deformed with respect to the frame portion 45 by the pressing of the cold storage body 30, the cold storage body 30 is urged by elasticity. Thereby, drop-off of the cool storage body 30 can be prevented reliably. Moreover, the back surface 32b of the cold storage container 32 can be brought into close contact with the side wall 20a of the storage chamber 20 (see FIG. 5). Therefore, the cold heat of the cooling unit 25 (see FIG. 5) can be efficiently transmitted to the cold storage body 30.

  Further, when the compressor 13 is stopped and the inside of the storage chamber 20 becomes higher than the transformation temperature of the holding members 41 and 42, the support portion 46 is separated from the cold storage body 30. Thereby, the cool storage body 30 can be attached or detached easily.

  According to this embodiment, the same effect as that of the first embodiment can be obtained. Moreover, when the support part 46 of the holding members 41 and 42 formed of a shape memory alloy becomes a temperature lower than a predetermined temperature, it deforms and urges the regenerator 30 toward the side wall 20a of the storage chamber 20. For this reason, it is possible to reliably prevent the cool storage body 30 from falling off, and to efficiently transmit the cold heat of the cooling unit 25 to the cool storage body 30. Moreover, the support part 46 leaves | separates from the cool storage body 30 at the time of temperature higher than predetermined temperature, and the cool storage body 30 can be attached or detached easily.

  In addition, the holding members 41 and 42 that urge the regenerator 30 during cooling by the cooling unit 25 can be easily realized by the shape memory alloy.

  In addition, you may form the holding members 41, 42, and 43 of 2nd, 3rd embodiment with a shape memory alloy similarly to this embodiment.

  In the first to sixth embodiments, the cooling unit 25 is formed by a refrigerant pipe connected to the compressor 13, but even if the cooling unit 25 is formed by another device such as a Peltier element that cools the storage chamber 20. Good.

  In addition, this invention is not limited to said each embodiment, It is also possible to change suitably and implement in the range which does not deviate from the meaning of this invention. For example, a part of the configuration of each embodiment may be omitted or changed, and the configuration of each embodiment may be arbitrarily combined.

  According to this invention, it can utilize for the cool box provided with the cool storage body which enclosed the cool storage agent.

DESCRIPTION OF SYMBOLS 1 Cold storage 2 Main body part 3 Opening / closing door 10 Machine room 12 Display panel 13 Compressor 20 Storage room 20a Side wall 20b Drain hole 25 Cooling part 30 Regenerator 31 Cold storage agent 32 Cold storage container 33 Step part 34 Recessed part 35, 36 Adhering part 37 Note Inlet 38 Locking groove 41, 42, 43, 43a, 43b Holding member 45 Frame portion 45a Projection portion 46 Support portion 46a Engaging claw 47 Opening portion 48 Seal member

Claims (5)

A main body having a storage chamber that is open at the upper surface and surrounded by a heat insulating wall, a door that opens and closes the upper surface of the storage chamber, and a cooling unit that is disposed inside a side wall of the storage chamber and cools the storage chamber A cold storage comprising a cold storage body enclosing a cold storage agent that is frozen by cooling of the cooling section, and a holding member that holds the cold storage body, wherein the holding member is an annular frame that fits into the inner surface of the storage chamber And a support portion erected on the inner peripheral side of the outer peripheral end of the frame portion, and the cold storage body placed on the frame portion of the one holding member disposed in the storage chamber The frame part of the other holding member is placed on an upper surface, and the cold storage body is held between a side wall of the storage chamber and the support part.   A plurality of the regenerators are installed in the vertical direction via the holding members, and the support members arranged between the regenerators adjacent vertically are provided with the support portions standing on the upper surface and the lower surface of the frame portion. The cold storage according to claim 1, wherein:   The cold insulator according to claim 1 or 2, wherein the support portion biases the cold storage body toward a side wall of the storage chamber. The cool box according to claim 3, wherein an elastic seal member is provided on an outer peripheral surface of the support portion .   The drainage hole is provided on the bottom surface of the storage chamber, and the holding member disposed on the bottom surface of the storage chamber has an opening facing the drainage hole. Cold storage as described in crab.

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