Storage device

Abstract

To provide a storage device that can dispose a light-emitting part and a light-receiving part in a box body to be cooled.SOLUTION: A storage device 1 includes: a housing 13; a plurality of box bodies 20 installed in the housing 13; and a cooling machine unit 4 for cooling the insides of the box bodies 20. A stored object detector 36 including a light-emitting part 70 and a light-receiving part 80 is installed in each of the insides of the box bodies 20. At least one of the light-emitting part 70 and light-receiving part 80 stored in each of the box bodies 20 is covered by a transparent member that can transmit light therethrough.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a containment device. [Background technology]

[0002] Patent Document 1 discloses a locker device including a housing, a plurality of boxes provided inside the housing, and a cooling unit that cools the inside of the boxes. This locker device is provided with a luggage sensor and a removable tray at the bottom of a box, and the tray is formed with a sensor window for the luggage sensor. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-134902 A Summary of the Invention [Problem to be solved by the invention]

[0004] The present disclosure provides a storage device that can suppress malfunctions in driving a light-emitting unit and a light-receiving unit. [Means for solving the problem]

[0005] The present disclosure relates to a storage device comprising a box body and a cooling unit that cools the inside of the box body, wherein a stored item detector comprising a light-emitting unit and a light-receiving unit is provided inside the box body, and at least one of the light-emitting unit and the light-receiving unit is covered by a transparent material that can transmit light.

[0006] The present disclosure also relates to a storage device comprising a housing, a plurality of box bodies provided inside the housing, and a cooling unit that cools the inside of the box bodies, wherein a storage item detector comprising a light-emitting unit and a light-receiving unit is provided inside each of the plurality of box bodies, and at least one of the light-emitting unit and the light-receiving unit inside each of the box bodies is covered by a transparent material that can transmit light. Effect of the Invention

[0007] According to the present disclosure, problems occurring in driving a light-emitting section and a light-receiving section can be suppressed. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view of a containment device according to an embodiment of the present disclosure. [Diagram 2] Longitudinal cross-sectional view of the storage device [Diagram 3] FIG. 1 is a perspective view showing the inside of a box; [Figure 4] FIG. 1 is a perspective view showing the inside of a box; [Diagram 5] A plan view showing the light-emitting circuit board [Figure 6] Vertical cross-section of the bottom of the box [Figure 7] A plan view showing the light receiving substrate DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] (The knowledge and other information that formed the basis of this disclosure) At the time the inventors came up with the idea for this disclosure, there was a luggage sensor technology in place that, in a storage device in which the inside of a box is cooled, has a light-emitting unit and a light-receiving unit inside the box, and detects luggage by blocking light by luggage placed in the box. However, the inventors discovered a problem with this technology in that depending on the temperature range of the box being cooled, there is a risk of malfunction in the operation of the light-emitting unit and the light-receiving unit, and in order to solve this problem, they came up with the subject matter of the present disclosure. Therefore, the present disclosure provides a storage device that can suppress malfunctions in the operation of the light-emitting unit and the light-receiving unit caused by the temperature range of the cooled box body.

[0010] Hereinafter, the embodiments will be described in detail with reference to the drawings. However, more detailed explanation than necessary may be omitted. For example, detailed explanation of already well-known matters or duplicate explanation of substantially the same configuration may be omitted. This is to avoid the following explanation becoming more redundant than necessary and to facilitate understanding by those skilled in the art. It should be noted that the accompanying drawings and the following description are provided to enable those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

[0011] (Embodiment 1) Hereinafter, the first embodiment will be described with reference to Figs. 1 to 7. In the description, directions such as front, back, left, right, and up and down are the same as directions relative to the storage device 1 unless otherwise specified. Also, the symbol FR shown in each figure indicates the front of the storage device 1, the symbol UP indicates the upper side of the storage device 1, and the symbol RH indicates the right side of the storage device 1. [1-1. Configuration] [1-1-1. Configuration of the storage device] FIG. 1 is a perspective view of a storage device 1 according to an embodiment of the present disclosure. The storage device 1 is a storage device capable of storing contents P such as food in a refrigerated or frozen state (FIG. 2). As shown in FIG. 1, the storage device 1 includes an apparatus main body 3 and a cooling unit 4 placed on the upper part of the apparatus main body 3.

[0012] Fig. 2 is a vertical cross-sectional view of the storage device 1. Fig. 2 is a cross-sectional view of the storage device 1 cut along a plane perpendicular to the left-right direction, viewed from the right. In Fig. 2, the plane passes to the right of the light-emitting unit 70 and the light-receiving unit 80. In Fig. 2, the control board 30, the communication opening 53, and the stored item P are indicated by two-dot chain lines, and the cooling air is indicated by arrows. As shown in Fig. 2, the device main body 3 includes a housing 13 in which a heat insulating material 11 is provided. The heat insulating material 11 is, for example, a rigid urethane foam. The housing 13 includes an outer plate 7 and an inner plate 9. The outer plate 7 and the inner plate 9 are assembled into a box shape with one side open, and the inner plate 9 is disposed inside the outer plate 7. The heat insulating material 11 is sandwiched between the outer plate 7 and the inner plate 9. This forms the housing 13 as an insulated housing whose inside is insulated. The housing 13 has a structure with an open front.

[0013] A pair of side plates 22 and a back plate 24 are provided inside the housing 13. Each of the side plates 22 is disposed facing the inner plate 9 located in the left-right direction with a predetermined distance therebetween. The back plate 24 is disposed facing the inner plate 9 located at the rear with a predetermined distance therebetween. The pair of side plates 22 and the back plate 24 have approximately the same length dimension in each longitudinal direction, and are disposed such that the longitudinal direction extends from the upper end to the lower end of the housing 13. The rear side of each of the side plates 22 is connected to the left-right side of the back plate 24.

[0014] A flow path S1 is provided between the pair of side plates 22 and back plate 24 thus arranged and the inner plate 9.

[0015] A plurality of bottom plates 26 and a plurality of top plates 28 are provided inside the housing 13. The bottom plates 26 are arranged inside the pair of side plates 22 and the back plate 24, from the lower ends to the upper ends of the pair of side plates 22 and the back plate 24, at predetermined intervals from each other in the up-down direction. Similarly, each of the top plates 28 is disposed at a predetermined interval from each other in the vertical direction inside the pair of side plates 22 and the back plate 24, from the lower end to the upper end of the pair of side plates 22 and the back plate 24. The bottom plate 26 and the top plate 28 are disposed alternately in the vertical direction at a predetermined interval from each other.

[0016] A plurality of boxes 20 are formed inside the housing 13 by connecting a pair of side plates 22, a back plate 24, a bottom plate 26, and a top plate 28. Each box 20 has side surfaces located in the left-right direction formed by the side plates 22, a back surface formed by the back plate 24, a bottom surface formed by the bottom plate 26, and a top surface formed by the top plate 28. As a result, each box 20 is formed in a box shape with an open front and a storage space S2 capable of storing an item P inside. The multiple boxes 20 are arranged in a line in the vertical direction. The storage space S2 corresponds to the "space inside the box" in this disclosure.

[0017] A plurality of ventilation holes 29 are provided in the pair of side plates 22 and the back plate 24 at positions facing the storage space S2. The ventilation holes 29 are through holes that communicate the flow path S1 with the storage space S2.

[0018] A heat-insulating door 21 is provided on the front surface of each of the boxes 20. Each of the heat-insulating doors 21 is a door member connected to the front surface of the box body 20 in an openable and closable manner, for example, via a hinge or the like. The heat-insulating door 21 is filled with a heat insulating material 11 and is provided with a seal member 23, such as a packing, that can be intimately attached to the front surface of the box body 20. The front surface of the box body 20 is closed by the heat-insulating door 21, thereby insulating the storage space S2.

[0019] A handle 25 that can be held by a user is provided on the front side of the heat-insulating door 21. In the present embodiment, the heat-insulating door 21 is biased to close the front side of the box body 20 by a biasing member such as a spring member. This causes the heat-insulating door 21 to close the front side of the box body 20 when it is not operated by the user. This prevents the heat-insulating door 21 from remaining open in the box body 20.

[0020] 1 and 2, a plurality of outer doors 14 are provided on the front portion of the housing 13. Each of the outer doors 14 is a door member that is connected to the front surface of the box body 20 in an openable and closable manner, for example, via a hinge or the like. Each of the outer doors 14 is disposed on the front side of each of the insulating doors 21 with a predetermined distance therebetween. Each of the outer doors 14 is provided on the front portion of the housing 13 such that the front surfaces of the outer doors 14 are flush with each other, and when all of the outer doors 14 are closed, the front surface of the housing 13 is blocked. In this embodiment, the outer door 14 is biased by a biasing member such as a spring member so as to open the front surface of the housing 13.

[0021] 1, an electronic lock 16 is provided on the front portion of the housing 13. The electronic lock 16 is locked when the outer door 14 is closed, thereby fixing the outer door 14 in the closed state. As described above, the outer door 14 is provided so as to be biased to open the front surface of the housing 13. Therefore, when the electronic lock 16 is unlocked, the outer door 14 rotates in a direction to open the front surface of the housing 13. In this manner, the storage device 1 functions as a so-called locker device in which each of the boxes 20 can be locked and unlocked.

[0022] [1-1-2. Configuration of the cooling unit] Next, the cooling unit 4 will be described. The chiller unit 4 operates to cool the storage space S2 to a predetermined temperature range. In this embodiment, the chiller unit 4 can cool the storage space S2 to either a freezing temperature range in which the contents P can be stored in a frozen state, or a refrigeration temperature range in which the contents P can be stored in a refrigerated state, according to a user's operation. When the chiller unit 4 is not operated, the temperature range of the storage space S2 is equivalent to the outside air temperature. The chiller unit 4 may also be capable of cooling the storage space S2 to a temperature range that is higher than the refrigeration temperature range and lower than the outside air temperature. In this way, each of the boxes 20 functions as a freezer or a refrigerator.

[0023] 2, the cooling unit 4 includes a compressor 41, a condenser 42, a condenser fan 43, an evaporator 45, and an evaporator fan 46. The evaporator 45, the compressor 41, and the condenser 42 are connected to each other by refrigerant piping to form a refrigeration cycle.

[0024] Compressor 41, condenser 42, and condenser fan 43 are disposed on the top surface of device main body 3, and are covered with a box-shaped unit cover 40, as shown in Figs. As shown in FIG. 1, the unit cover 40 is provided with an intake port 47 on the front side and an exhaust port 48 on the rear side.

[0025] 2, a drain pan 50 is provided at the upper end of the device body 3. A unit space S3 is formed above the drain pan 50, which is a space separated from the flow path S1 by the drain pan 50. An evaporator 45 and an evaporator fan 46 are disposed above the drain pan 50. An outlet opening 52 is formed at the rear end of the drain pan 50, which connects the upper part of the drain pan 50 to the flow path S1. A communication opening 53, which is a through hole that connects the flow path S1 to the unit space S3, is provided at least on one of the left and right sides of the unit space S3.

[0026] A control board 30 is provided inside the unit cover 40. The control board 30 controls each part of the storage device 1. The control board 30 may be provided in another location of the storage device 1, not limited to the unit cover 40. For example, the control board 30 may be provided outside the storage device 1 as a separate entity from the storage device 1.

[0027] [1-1-3. Box structure] Next, the box 20 will be described in detail. As shown in FIG. 2, in the box 20, the top plate 28 is provided so as to be inclined downward from the front to the rear. As a result, in the box body 20, when condensation forms on the top plate 28 as the storage space S2 is cooled, the inclination of the top plate 28 allows the condensation to flow to the rear of the storage space S2. Therefore, in the box body 20, the condensation is prevented from accumulating on the top plate 28 and from dropping onto the stored items P or the user's hands, etc. In addition, in the box body 20, moisture that enters when the insulating door 21 is opened is prevented from coming into contact with the top plate 28, thereby preventing frost from forming inside the container. The top plate 28 may be disposed so as to approach the bottom of the box 20 in at least one direction, such as from the front to the rear, or in either the left or right direction.

[0028] FIG. 3 is a perspective view of the top plate 28. As shown in FIG. 3, a through hole 27 is provided in the top plate 28. The through hole 27 is covered by a light receiving panel 32 and a wiring panel 34. The light receiving panel 32 and the wiring panel 34 are provided detachably from the top plate 28. The light receiving panel 32 is provided with an insertion hole 38 which is a through hole. A light receiving unit 80 is inserted into the insertion hole 38.

[0029] 2, the box 20 includes a mounting plate 60. The mounting plate 60 is a plate-like member that is placed on the upper surface of the bottom plate 26. The mounting plate 60 includes a planar portion 62 that is formed in substantially the same shape as the bottom plate 26 in a plan view. The upper surface of the planar portion 62 is formed into a flat surface.

[0030] FIG. 4 is a perspective view of the mounting plate 60. As shown in FIG. 4, an emission hole 61 is provided at approximately the center of the flat surface portion 62. The emission hole 61 is a through hole that penetrates the flat surface portion 62 in the plate thickness direction. An operation hole 63 is provided on the front side of the flat surface portion 62. The operation hole 63 is a through hole that penetrates the flat surface portion 62 in the plate thickness direction.

[0031] The mounting plate 60 is provided with support portions 64. The support portions 64 stand on the opposite side to the upper surface from at least two opposing sides of the flat portion 62, and protrude by a predetermined length. In this embodiment, the support portions 64 extend from the sides located at the front and rear of the mounting plate 60.

[0032] The mounting plate 60 is placed on the bottom plate 26 so that the tips of the supports 64 abut against the upper surface of the bottom plate 26. When placed in this manner, the mounting plate 60 covers the entire upper surface of the bottom plate 26 and abuts against each of the side plates 22 and the back plate 24. For this reason, the box 20 has a so-called double-bottom structure. When an item P is stored in the box 20, the item P is placed on the upper surface of the mounting plate 60.

[0033] When removing the mounting plate 60, the user can insert a rod-shaped member such as a screwdriver into the operation hole 63, hook it, and then lift it up to remove the mounting plate 60.

[0034] [1-1-4. Configuration of the content detector] As shown in FIG. 2, the box 20 is provided with a contained item detector . The stored item detector 36 detects stored items P in the storage space S2. The stored item detector 36 is, for example, an optical sensor including a light-emitting unit 70 provided on the bottom plate 26 and a light-receiving unit 80 provided on the top plate 28. The light-emitting unit 70 and the light-receiving unit 80 are disposed opposite each other with the storage space S2 in between. That is, the light-emitting unit 70 and the light-receiving unit 80 are disposed at substantially the same position in a plan view.

[0035] The contained item detector 36 is driven under the control of the control board 30. Specifically, the light emitting unit 70 emits light under the control of the control board 30, and the light receiving unit 80 transmits the detection result of whether or not a predetermined light has been received to the control board 30 by a predetermined signal.

[0036] The light-emitting unit 70 may be provided on the top plate 28, and the light-receiving unit 80 may be provided on the bottom plate 26. Alternatively, for example, the light-emitting unit 70 may be provided on one side plate 22, and the light-receiving unit 80 may be provided on the other side plate 22.

[0037] Fig. 5 is a vertical cross-sectional view of the bottom of the box 20. Fig. 5 is a view of a cut surface of the bottom of the box 20 cut along a plane perpendicular to the left-right direction, viewed from the right. For ease of explanation, in Fig. 5, the terminal 79 and the adhesive R4 are indicated by two-dot chain lines, and the transparent member R1 is indicated by dots. 5, the light emitting section 70 includes a substrate case 90. The substrate case 90 is a box-shaped member that houses the light emitting section substrate 72. The substrate case 90 is made of a transparent resin material or the like that has a predetermined rigidity.

[0038] The substrate case 90 includes an element-side case part 92 and a terminal-side case part 94. The element-side case part 92 and the terminal-side case part 94 are each formed in a tank shape with one side open and recessed on the opposite side to the open side. The substrate case 90 is formed by combining the element-side case part 92 and the terminal-side case part 94 so that the open sides of the element-side case part 92 and the terminal-side case part 94 are mutually closed.

[0039] In the board case 90, a wiring hole 91 which is a through hole is provided in a surface facing the open surface of the terminal side case portion 94. The board wiring 78 connected to the light emitting portion board 72 is inserted through the wiring hole 91. In this embodiment, the light receiving unit 80 also includes a board case 90 that houses the light receiving unit board 82 therein. The board case 90 corresponds to the "container" of the present disclosure.

[0040] Fig. 6 is a plan view of the light-emitting portion substrate 72. For ease of explanation, in Fig. 6, the transparent member R1 is indicated by a two-dot chain line, and the frame 76 is indicated by hatching. 6, the light-emitting section 70 includes a light-emitting section substrate 72. The light-emitting section substrate 72 is a substrate on which various wirings and electric components are mounted.

[0041] A plurality of light-emitting elements 74 are mounted on one mounting surface 73 of the light-emitting section 70. The light-emitting elements 74 may be, for example, LEDs (Light-emitting diodes). The light emitting element 74 and the light emitting substrate 72 each use electrical components that can be operated in the freezing temperature range and the refrigerating temperature range. The light emitting element 74 and the light emitting substrate 72 are disposed so as to emit light upward. Therefore, the optical axis of each of the light emitting elements 74 extends in the vertical direction. The light emitting unit 70 is not limited to an LED, and may include other light emitting elements such as a semiconductor laser.

[0042] A plurality of resistive elements 77 are mounted on the mounting surface 73. These resistive elements 77 are electric components that limit the current flowing through the light emitting substrate 72.

[0043] A frame 76 is provided on one mounting surface 73 of the light-emitting portion substrate 72. The frame 76 is a frame-shaped member formed by providing a through hole in a flat plate. The frame 76 surrounds the light-emitting element 74 and the resistive element 77, and covers the one mounting surface 73 other than the locations where the light-emitting element 74 and the resistive element 77 are mounted. The frame 76 has a predetermined thickness, and when attached to the one mounting surface 73, the upper surface of the frame 76 protrudes above the light-emitting element 74. Note that the frame 76 may surround not only resistive elements, but also other electrical components such as capacitors.

[0044] A transparent member R1 is provided in the area surrounded by the frame 76. The transparent member R1 is a transparent member that can transmit light emitted by the light emitting element 74. The transparent member R1 is a fluid that can be applied to the light emitting substrate 72, and is a member that hardens when dried or exposed to light. It is desirable that the transparent member R1 is a member that does not change in quality in the freezing temperature zone and the refrigerating temperature zone, and that is suppressed from expanding or contracting in a manner that would cause cracks. In this embodiment, a resin material such as Fluorosurf is used for the transparent member R1. Transparent member R1 corresponds to the "first transparent member" in this disclosure.

[0045] As described above, when the transparent member R1 is applied to the area surrounded by the frame 76, each of the light-emitting elements 74 is covered with the transparent member R1. It is preferable that each of the light-emitting elements 74 is hermetically sealed with the transparent member R1. In the present embodiment, when the transparent member R1 is cured, each of the light-emitting elements 74 is sealed in the transparent member R1 in a liquid-tight and airtight state. In this way, by providing the frame body 76, the light-emitting section 70 can more reliably cover the light-emitting elements 74 with the transparent member R1. In addition, in the light-emitting section 70, the transparent member R1 can be applied to the light-emitting elements 74 more efficiently.

[0046] Board wiring 78 is connected to the light-emitting portion substrate 72. This board wiring 78 may be a power line, a signal line, or the like. In the present embodiment, the light-emitting portion substrate 72 is provided with three board wirings 78: a power line for the light-emitting element 74, a voltage output line for the light-emitting element 74, and a ground line. As shown in FIG. 5, a terminal 79 is provided at one end of the board wiring 78. The terminal 79 is connected to the other mounting surface 75 of the light-emitting portion substrate 72, for example, by soldering.

[0047] The terminal 79 is covered with adhesive R4 while connected to the other mounting surface 75. The other end of the board wiring 78 extending from the terminal 79, located opposite the terminal 79, penetrates the adhesive R4 and is exposed to the outside of the adhesive R4. The adhesive R4 is a fluid that can be applied to the light-emitting portion board 72, and is desirably a material that hardens when dried or exposed to light, and is resistant to deterioration in freezing and refrigerating temperature ranges. In this embodiment, the adhesive R4 is, for example, a silicone resin. The terminal 79 may be covered with a transparent member R1. Furthermore, for example, the board wiring 78 may be a plurality of boards integrally formed, such as a flexible board.

[0048] 6, the light-emitting section substrate 72 is entirely covered with a transparent member R2. Like the transparent member R1, the transparent member R2 is a fluid that can be applied to the light-emitting section substrate 72, and is a transparent member that hardens when dried or exposed to light, is unlikely to deteriorate in the freezing temperature zone and the refrigerating temperature zone, and is capable of transmitting light emitted by the light-emitting element 74. In this embodiment, the transparent member R2 is made of the same resin material as the transparent member R1.

[0049] When the transparent member R2 is cured, the light-emitting substrate 72 is entirely covered with the transparent member R2, including the mounted light-emitting element 74 and the transparent member R1 applied to the light-emitting element 74. That is, the light-emitting element 74 is doubly covered with the transparent member R1 and the transparent member R2. In this case, it is preferable that the entire light emitting substrate 72, including the mounted light emitting elements 74 and the transparent member R1 applied to the light emitting elements 74, be covered with the transparent member R2 in a liquid-tight and airtight state.

[0050] As a result, in the light-emitting section 70, the entire light-emitting section substrate 72 is hermetically sealed, and condensation water or the like is prevented from adhering to the light-emitting element 74. Furthermore, in the light-emitting section 70, the effect of temperature on the light-emitting section substrate 72 can be reduced. The other end of the board wiring 78 extends from the transparent member R2 that covers the entire light-emitting portion board 72, and passes through a wiring hole 91 to the outside. Transparent member R2 corresponds to the "second transparent member" in this disclosure.

[0051] A waterproof connector 96 is provided at the other end of the board wiring 78. In the present embodiment, the other ends of the two board wirings 78 are each connected to one waterproof connector 96. The board wiring 78 is connected to one end of another wiring 99 via this waterproof connector 96. The other wiring 99 is, for example, a signal line communicatively connected to the control board 30, or a power line that supplies power from a power source. In the present embodiment, the accommodation device 1 includes a plurality of other wirings 99, and the other ends of the plurality of other wirings 99 are all connected to the control board 30. Each of the other wirings 99 extending from the control board 30 is routed inside the housing 13. One end of each of the other wirings 99 extends to each of the box bodies 20. The other wiring 99 corresponds to the "wiring" in this disclosure.

[0052] A waterproof connector 98 is provided at one end of the other wiring 99. In the present embodiment, the other ends of the two other wirings 99 are each connected to one waterproof connector 98. The waterproof connector 98 of the other wiring 99 is connected to the waterproof connector 96 of the board wiring 78, whereby the board wiring 78 and the other wiring 99 are connected. As a result, the light-emitting unit 70 is electrically connected to the control board 30 in a waterproof state. Therefore, even if condensation or the like adheres to the portion of the light-emitting unit 70 connected to another wiring 99, for example, the occurrence of a malfunction is suppressed.

[0053] 2, the waterproof connector 96 connected to the light-emitting substrate 72 and the waterproof connector 98 connected to the waterproof connector 96 are both disposed inside the mounting plate 60 on which the contents contained in the box 20 are placed. Specifically, the waterproof connectors 96, 98 are disposed between the mounting plate 60 and the bottom plate 26. As described above, the mounting plate 60 can be removed from the bottom plate 26. By removing the mounting plate 60, the waterproof connectors 96, 98 become exposed, facilitating maintenance.

[0054] As described above, the light emitting section substrate 72 sealed in the transparent member R2 is housed in the substrate case 90. As shown in Fig. 5, the light emitting section substrate 72 is disposed in the substrate case 90 such that one mounting surface 73 faces the upper surface of the substrate case 90 in approximately parallel relation, and the other mounting surface 75 faces the lower surface of the substrate case 90. In the light emitting section 70, the element side case part 92 forms the upper surface side of the substrate case 90, and the terminal side case part 94 forms the lower surface side of the substrate case 90.

[0055] The open surface of the element-side case part 92 is closed by the light-emitting section substrate 72. In other words, the lower end of the element-side case part 92 surrounds one mounting surface 73 of the light-emitting section substrate 72. The upper surface of the substrate case 90 is disposed at a position spaced apart from the light-emitting section substrate 72. As a result, a space is provided between the substrate case 90 and the light-emitting section substrate 72 inside the substrate case 90. The light emitting substrate 72 is disposed in the substrate case 90 such that the transparent member R2 covering the entire light emitting substrate 72 abuts against the bottom surface of the substrate case 90 on the other mounting surface 75 of the light emitting substrate 72.

[0056] In this manner, the light-emitting section substrate 72 covered with the transparent member R2 is covered with the substrate case 90, thereby preventing the light-emitting section substrate 72 and the transparent member R2 from coming into contact with other members. In addition, in the light-emitting section 70, adhesion of condensation water and the like and the effect of temperature on the driving of the light-emitting section substrate 72 can be reduced.

[0057] In this embodiment, the light-emitting unit 70 is attached to the support 66. The support 66 is a member that is disposed on the upper surface of the bottom plate 26 and protrudes upward from the upper surface. The light-emitting unit 70 is attached to the upper end of the support 66, and is thereby disposed in a position approaching the mounting plate 60 from below. In the light-emitting unit 70 that is attached to the support 66, the upper surface of the board case 90 and one mounting surface 73 face parallel to the emission hole 61 and are located directly below the emission hole 61. In other words, the light-emitting unit 70 is disposed in a position that overlaps with the emission hole 61 in a plan view.

[0058] 2 and 4, the light-emitting unit 70 is disposed below the mounting plate 60 and on the upper surface of the bottom plate 26. The light-emitting unit 70 is disposed at a position overlapping with the emission hole 61 in a plan view. At this position, the emission hole 61 is positioned on the optical axis of the light-emitting element 74. That is, the light emitted from the light-emitting unit 70 is emitted into the accommodation space S2 through the emission hole 61.

[0059] As described above, the upper surface of the board case 90 and the light-emitting unit board 72 are disposed with a space therebetween. As a result, in the storage device 1, even if a physical impact, cold air, or the like is transmitted to the board case 90 via, for example, the mounting plate 60 or the emission hole 61, the physical impact, cold air, or the like can be prevented from being transmitted to the light-emitting unit board 72. In addition, in the storage device 1, the provision of the space makes it possible to prevent heat generated by the driving of the light-emitting unit board 72 from being transmitted to the storage space S2.

[0060] In the light-emitting section 70 disposed on the bottom plate 26 , the board wiring 78 of the light-emitting section 70 is disposed on the upper surface of the bottom plate 26 . As a result, in the storage device 1, by removing the mounting plate 60, it is possible to replace or inspect the light-emitting unit 70, or to perform work related to wiring. Furthermore, the light emitting unit 70 is disposed below the mounting plate 60 and emits light through the emission hole 61, thereby making it possible to detect the contained item P without coming into contact with the contained item P.

[0061] Fig. 7 is a plan view of the light receiving substrate 82. For ease of explanation, the transparent member R3 is indicated by a two-dot chain line in Fig. 7. 7, the light receiving unit 80 includes a light receiving unit substrate 82. The light receiving unit substrate 82 is a substrate on which various wirings and electric components are mounted. A light receiving element 84 is mounted on one mounting surface 83 of the light receiving unit 80. For example, a phototransistor, a photo IC, a photodiode, or the like is used for the light receiving element 84. In this embodiment, when the light receiving element 84 receives light with a signal intensity equal to or greater than a predetermined value, the light receiving element 84 outputs a detection voltage as an output value indicating the amount of received light according to the amount of received light. The signal intensity of the light received by the light receiving element 84 is, for example, illuminance.

[0062] The light receiving element 84 and the light receiving board 82 each use electrical components that can be operated in the freezing temperature range and the refrigerating temperature range. The light receiving element 84 and the light receiving substrate 82 are disposed so as to emit light downward. Therefore, the optical axis of the light receiving element 84 both extends in the vertical direction. In this embodiment, the optical axis of the light receiving element 84 is the direction in which, among the directions of light incident on the light receiving element 84, the sensitivity is highest.

[0063] The light receiving board 82 is connected with board wiring 78 in the same manner as the light emitting board 72. This board wiring 78 may be a power line, a signal line, or the like. The light emitting board 72 of the present embodiment is provided with three board wirings 78, namely, a power line for the light receiving element 84, a voltage output line for the light receiving element 84, and a ground line. The board wiring 78 may be connected to any board surface of the light receiving portion board 82. Also, for example, the board wiring 78 may be a plurality of board wirings formed integrally, such as a flexible board.

[0064] The light-receiving substrate 82 is entirely covered with a transparent member R3, similar to the light-emitting substrate 72. The transparent member R3, similar to the transparent member R1, is a fluid that can be applied to the light-receiving substrate 82, and is a transparent member that hardens when dried or exposed to light, is unlikely to deteriorate in the freezing temperature zone and the refrigerating temperature zone, and is capable of transmitting light emitted by the light-emitting element 74. In this embodiment, the transparent member R3 is made of the same resin material as the transparent member R1. It is desirable that the entire light receiving substrate 82, including the mounted light receiving element 84, be sealed in the transparent member R3 in a liquid-tight and airtight state.

[0065] As a result, in the light-receiving unit 80, the entire light-receiving unit substrate 82 is covered in an airtight and liquid-tight state, and condensation water or the like is prevented from adhering to the light-receiving elements 84. Furthermore, in the light-receiving unit 80, the effect of temperature on the driving of the light-receiving unit substrate 82 can be reduced. Similarly to the light emitting substrate 72 having the frame 76, the light receiving substrate 82 may have a frame surrounding the light receiving element 84 and various electrical components, and a transparent member R1 covering the light receiving element 84 may be applied. Transparent member R3 corresponds to the "third transparent member" in this disclosure.

[0066] The other end of the board wiring 78 extends to the outside from a transparent member R3 that covers the entire light-receiving unit board 82. The board wiring 78 connected to the light-receiving unit board 82 is connected to a waterproof connector 98 of another wiring 99 extending from the control board 30, similar to the light-emitting unit board 72, via a waterproof connector 96 provided at the other end. As a result, the light receiving unit 80 is electrically connected to the control board 30 in a waterproof state. Therefore, even if condensation or the like adheres to the portion of the light receiving unit 80 connected to another wiring 99, for example, the occurrence of a malfunction is suppressed.

[0067] A waterproof connector 96 connected to the light receiving board 82 and a waterproof connector 98 connected to the waterproof connector 96 are disposed inside a wiring panel 34 (see FIG. 3) provided on the top plate 28 of the box 20. According to this, in the storage device 1, the waterproof connectors 96, 98 are exposed by removing the wiring panel 34, which facilitates maintenance such as replacement or inspection of the light receiving unit 80 or work related to wiring. It should be noted that the waterproof connectors 96, 98 may be placed on the wiring panel 34. Also, for example, the waterproof connectors 96, 98 may be attached to the wiring panel 34.

[0068] The light receiving unit 80 includes a board case 90, similar to the light emitting unit 70. The light receiving unit board 82 is housed inside the board case 90, similar to the light emitting unit board 72. In the light receiving unit 80, the light receiving unit board 82 is arranged in the board case 90 such that one mounting surface 83 faces the lower surface of the board case 90 in approximately parallel relation, and the other mounting surface 85 faces the upper surface of the board case 90. In the light emitting unit 70, the element side case part 92 forms the lower surface side of the board case 90, and the terminal side case part 94 forms the upper surface side of the board case 90.

[0069] The open surface of the element-side case part 92 is closed by the light-receiving unit board 82. In other words, the lower end of the element-side case part 92 surrounds one mounting surface 83 of the light-receiving unit board 82. The lower surface of the board case 90 is disposed at a position spaced apart from the light-receiving unit board 82. The light receiving substrate 82 is disposed in the substrate case 90 such that the transparent member R3 covering the entire light receiving substrate 82 abuts against the upper surface of the substrate case 90 on the other mounting surface 85 of the light receiving substrate 82.

[0070] 2 and 3, the light receiving unit 80 is inserted through the insertion hole 38 and fixed to the light receiving panel 32. In this case, the light receiving unit 80 is attached to the light receiving panel 32 such that at least one mounting surface 83 is disposed in the accommodation space S2. The light receiving unit 80 is attached to the light receiving panel 32 such that the element side case part 92 is disposed in the accommodation space S2. For this reason, the light receiving unit 80 is attached to the top plate 28 such that the element side case part 92 bulges from the top plate 28 into the accommodation space S2.

[0071] As a result, the entire light receiving element 84 is disposed in the accommodation space S2. Therefore, the light receiving element 84 can receive the light from the light emitting unit 70 more reliably. When the light receiving section 80 is fixed to the light receiving panel 32, the light receiving section 80 is disposed at a position where it can receive the light emitted from the light emitting section 70 at a predetermined intensity. The light receiving section 80 is desirably disposed at a position where the optical axis of the light receiving element 84 overlaps at least a portion of the optical axis of the light emitting element 74 .

[0072] [1-2. Operation] The operation of the storage device 1 configured as above will be described below. [1-2-1. Operation of the cooling unit] First, the operation of the chiller unit 4 will be described with reference to FIG. When the cooling unit 4 is operated, the refrigerant is discharged from the compressor 41, and the refrigerant is condensed by heat exchange with outside air in the condenser 42, reduced in pressure, and supplied to the evaporator 45. The refrigerant evaporated in the evaporator 45 flows into the compressor 41.

[0073] In the cooling unit 4, when the condenser fan 43 is operated, outside air is sucked in from the suction port 47. After exchanging heat in the condenser , the outside air is blown out from the outlet while cooling the compressor 41.

[0074] When the evaporator fan 46 is operated, air inside the housing 13 is drawn into the unit space S3. The drawn air passes through the evaporator 45 and exchanges heat with the refrigerant. The air cooled by heat exchange in the evaporator 45 is supplied from the outlet 52 to a flow path S1 located on the rear side of the housing 13. The cooling air flowing through the flow path S1 flows into each of the storage spaces S2 through each of the vent holes 29 provided in the back plate 24. The cooling air that has flowed into the storage space S2 flows out into the flow path S1 located on the side surface of the housing 13 through the vent holes 29 provided in each of the side plates 22. The cooling air that has flowed out into the flow path S1 cools the storage space S2, and then flows into the unit space S3 through the communication opening 53. In this way, the cooling air generated by the operation of the cooling unit 4 circulates inside the housing 13. When an item P is stored in the storage space S2, the item P is cooled by the cooling air.

[0075] [1-2-2. Operation of the content detector] Next, the operation of the content detector 36 will be described. In the contained item detector 36, the light-emitting unit 70 and the light-receiving unit 80 are disposed at a position where the light-receiving unit 80 can receive the light emitted from the light-emitting unit 70 with a predetermined signal intensity. As described above, the emission hole 61 is disposed approximately in the center of the mounting plate 60. Therefore, the emission hole 61 is disposed at a position where at least a portion of the emission hole 61 is likely to be covered by the item P when the item P is contained in the containing space S2.

[0076] In this case, the output value indicating the amount of light received by the light receiving element 84 differs between a case where the entire or part of the emission hole 61 is blocked by the contained item P and a case where the contained item P is not contained in the containing space S2. Therefore, the contained item detector 36 can detect whether or not the contained item P is contained in the containing space S2 based on the output value indicating the amount of light received by the light receiving element 84.

[0077] As described above, the box 20 is cooled by cooling air. In this embodiment, the light-emitting element 74 and the light-emitting unit substrate 72, and the light-receiving element 84 and the light-receiving unit substrate 82 are all covered with transparent members R1 to R3. This makes it possible to reduce the adhesion of condensation water or the like to the light-emitting unit 70 and the light-receiving unit 80 in the storage device 1, and to reduce the effect of temperature on the driving of the light-emitting unit substrate 72.

[0078] [1-3. Effects, etc.] As described above, in the present embodiment, the storage device 1 includes a housing 13, a plurality of boxes 20 provided inside the housing 13, and a cooling unit 4 that cools the inside of the boxes 20. A stored item detector 36 including a light-emitting unit 70 that emits light and a light-receiving unit 80 that receives the light emitted from the light-emitting unit 70 is provided inside the boxes 20. The light-emitting unit 70 and the light-receiving unit 80 are covered by transparent members R1 to R3 that are capable of transmitting light.

[0079] This prevents, for example, condensation water from adhering to the light-emitting unit 70 and the light-receiving unit 80 in the storage device 1. Therefore, the storage device 1 can provide the stored item detector 36 without adding components such as a heater or a heat insulating material, and can prevent malfunctions of the stored item detector 36.

[0080] As in this embodiment, the light emitting section 70 includes a light emitting element 74 and a light emitting section substrate 72 on which the light emitting element 74 is provided, and the light receiving section 80 includes a light receiving element 84 and a light receiving section substrate 82 on which the light receiving element 84 is provided. The light emitting element 74 and the light receiving element 84 are covered with transparent members R1 to R3. The light emitting section substrate 72 and the light receiving section substrate 82 may be covered with a transparent member R2 in addition to the light emitting element 74, the light receiving element 84, and the transparent member R1 that covers the light emitting element 74 and the light receiving element 84. As a result, the light-emitting element 74 and the light-receiving element 84 are doubly covered by the transparent members R1-R2. Therefore, the light-emitting unit 70 and the light-receiving unit 80 are entirely covered by the light-emitting unit substrate 72 and the light-receiving unit substrate 82, and adhesion of condensation water or the like to the light-emitting element 74 and the light-receiving element 84 is suppressed.

[0081] As in this embodiment, the light emitting substrate 72 may be provided with a frame 76 surrounding the light emitting element 74 . As a result, when the transparent member R1 is applied to the area surrounded by the frame body 76, each of the light-emitting elements 74 is covered with the transparent member R1. Therefore, by providing the frame body 76, the light-emitting unit 70 can more reliably cover the light-emitting elements 74 with the transparent member R1.

[0082] As in this embodiment, the light receiving section 80 may have the light receiving element 84 and the light receiving section substrate 82 on which the light receiving element 84 is mounted covered entirely with a transparent member R3. This covers the entire light-receiving substrate 82 in the light-receiving section 80. Therefore, in the light-receiving section 80, adhesion of condensed water or the like to the light-receiving substrate 82 and the light-receiving element 84 is suppressed.

[0083] As in this embodiment, the light emitting section 70 and the light receiving section 80 may be housed in a box-shaped board case 90. This prevents other members from coming into contact with the light-emitting unit substrate 72, the light-receiving unit substrate 82, and the transparent member R2 in the storage device 1. This reduces the adhesion of condensation water and the like to the light-emitting unit 70 and the light-receiving unit 80 and the effects of temperature.

[0084] As in the present embodiment, box 20 is provided with bottom plate 26 forming the bottom of box 20, and mounting plate 60 covering bottom plate 26 from above and on which items to be contained in box 20 are placed, and mounting plate 60 is provided with emission hole 61. Bottom plate 26 may be provided with light emitting unit 70 at a position overlapping emission hole 61 in a plan view. As a result, the light emitting unit 70 is disposed below the mounting plate 60. Therefore, the contained item detector 36 can detect the contained item P without coming into contact with the contained item P by emitting light through the emission hole 61.

[0085] As in this embodiment, the mounting plate 60 may be provided so as to be detachable from the bottom plate 26 . As a result, in the storage device 1, an operator can access the light-emitting unit 70 by removing the mounting plate 60. Therefore, in the storage device 1, replacement or inspection of the light-emitting unit 70 or work related to wiring can be easily performed.

[0086] As in this embodiment, the box body 20 is provided with a top plate 28 that forms the top surface of the box body 20, and a light receiving unit 80 may be provided on the top plate 28 protruding from the top plate 28 toward the storage space S2 of the box body 20. As a result, the entire light receiving element 84 is disposed in the accommodation space S2. Therefore, the light receiving element 84 can receive the light from the light emitting unit 70 more reliably.

[0087] As in this embodiment, the top plate 28 may be provided at an incline so as to approach the bottom of the box 20 in one direction. As a result, in the box 20, when condensation forms on the top plate 28 as the storage space S2 is cooled, the condensation can be caused to flow to the rear of the storage space S2 by the inclination of the top plate 28. Therefore, in the box 20, the condensation is prevented from accumulating on the top plate 28, and the condensation can be prevented from falling onto the stored item P.

[0088] As in this embodiment, the storage device 1 has other wiring 99 connected to the light-emitting unit 70 and the light-receiving unit 80, and the light-emitting unit 70 and the light-receiving unit 80 have waterproof connectors 96 connectable to the other wiring 99, and the waterproof connector 96 may be provided on the box body 20. This allows wiring work between the light-emitting unit 70 and the light-receiving unit 80 to be performed in the box body 20 in the storage device 1. Therefore, in the storage device 1, replacement or inspection of the light-emitting unit 70 and the light-receiving unit 80, or work related to wiring can be easily performed.

[0089] As in this embodiment, a control board 30 is provided that controls each part of the storage device 1, and multiple other wirings 99 extending from the control board 30 may be connected to the light-emitting unit 70 and the light-receiving unit 80, respectively, via waterproof connectors 96, 98. As a result, the light-emitting unit 70 and the light-receiving unit 80 are electrically connected to the control board 30 in a waterproof state. Therefore, even if condensation adheres to the light-emitting unit 70 and the light-receiving unit 80, the occurrence of malfunctions is suppressed.

[0090] As in this embodiment, the waterproof connectors 96, 98 connected to the light emitting unit 70 may be disposed on the inside of the mounting plate 60 on which the contents contained in the box 20 are placed. This allows the housing device 1 to perform wiring work for the light-emitting unit 70 in the box body 20. Therefore, in the housing device 1, replacement or inspection of the light-emitting unit 70 or work related to wiring can be easily performed.

[0091] As in this embodiment, the waterproof connectors 96 , 98 connected to the light receiving unit 80 may be disposed inside a wiring panel provided on the top plate of the box 20 . This allows the storage device 1 to perform wiring work for the light receiving unit 80 in the box body 20. Therefore, in the storage device 1, replacement or inspection of the light receiving unit 80 or work related to wiring can be easily performed.

[0092] (Other embodiments) As described above, the first embodiment has been described as an example of the technology disclosed in the present application. However, the technology in the present disclosure is not limited to this, and can be applied to embodiments in which modifications, substitutions, additions, omissions, etc. are made. In addition, it is also possible to combine the components described in the first embodiment to create new embodiments. Therefore, other embodiments will be exemplified below.

[0093] In the above-described embodiment, the light-emitting unit 70 is disposed on the bottom plate 26, and the light-receiving unit 80 is disposed on the top plate 28. However, this is not limiting, and the light-emitting unit 70 may be disposed on the top plate 28, and the light-receiving unit 80 may be disposed on the bottom plate 26.

[0094] In the above-described embodiment, the contained item detector 36 includes the light-emitting unit 70 and the light-receiving unit 80. However, the present invention is not limited to this, and the contained item detector 36 may include other sensors, such as a weight sensor. In this case, the sensors may be covered with transparent members R1 to R3.

[0095] In the above-described embodiment, both the light-emitting unit board 72 and the light-receiving unit board 82 are accommodated in the board case 90. However, this is not limited thereto, and the board case 90 may be omitted for at least one of the light-emitting unit 70 and the light-receiving unit 80.

[0096] Also, for example, at least one of the light-emitting unit 70 and the light-receiving unit 80 may omit the board case 90. In this case, the other may be provided with the board case 90 and may omit the transparent members R1 to R3.

[0097] Furthermore, for example, the contained item detector 36 may include an optical sensor in which the light-emitting element 74 and the light-receiving element 84 are mounted on the same board. Such an optical sensor detects contained items by receiving reflected light of light emitted from the light-emitting element 74 with the light-receiving element 84. In this case, the optical sensor may be covered with transparent members R1 to R3.

[0098] Also, for example, a mark or the like may be provided on the upper surface of the mounting plate 60 to guide the contained item P to be placed in a position covering the emission hole 61. This makes it easier for the contained item P to be placed in a position where the contained item detector 36 can detect the contained item P in the storage device 1. Therefore, the contained item P can be detected more reliably in the storage device 1. Note that the mark may also be provided when the light-emitting unit 70 and the light-receiving unit 80 are arranged on a pair of side plates 22.

[0099] In the above-described embodiment, the storage device 1 includes a plurality of boxes 20. However, the present invention is not limited to this, and the storage device 1 may include only one box 20. In this case, the storage device 1 functions as, for example, a delivery box installed in a house or the like.

[0100] In the above-described embodiment, the storage device 1 includes a plurality of containers 20. However, the present invention is not limited to this, and the storage device 1 may include only one container 20.

[0101] It should be noted that the above-described embodiments are intended to illustrate the technology of the present disclosure, and various modifications, substitutions, additions, omissions, and the like can be made within the scope of the claims or their equivalents.

[0102] (Additional Note) The above description of the embodiments discloses the following techniques.

[0103] (Technology 1) A storage device including a box body and a cooling unit that cools the inside of the box body, wherein a stored item detector including a light-emitting unit and a light-receiving unit is provided inside the box body, and at least one of the light-emitting unit and the light-receiving unit is covered by a transparent material that can transmit light. This prevents, for example, condensation water or the like from adhering to at least one of the light-emitting unit and the light-receiving unit in the storage device, and therefore prevents malfunctions in the storage item detector in the storage device.

[0104] (Technical Technique 2) In the container device according to Technical Technique 1, the light-emitting section has a light-emitting element covered by a first transparent member, and a light-emitting section substrate on which the light-emitting element is mounted is entirely covered by a second transparent member. As a result, the light emitting element is doubly covered with the transparent member, so that the light emitting portion is entirely covered by the light emitting portion substrate, and adhesion of condensation water or the like to the light emitting element is suppressed.

[0105] (Technology 3) The container device according to Technology 2, wherein the light-emitting substrate is provided with a frame surrounding the light-emitting element, and the first transparent member is provided inside the frame. As a result, when the transparent material is applied to the area of ​​the light-emitting substrate surrounded by the frame, each of the light-emitting elements is covered with the transparent material. Therefore, by providing the frame, the light-emitting portion can more reliably cover the light-emitting elements with the transparent material.

[0106] (Technology 4) In the light receiving unit, the light receiving element and the light receiving unit substrate on which the light receiving element is mounted are entirely covered by a third transparent member. As a result, the light receiving section has a light receiving substrate entirely covered therewith, which prevents condensation water and the like from adhering to the light receiving substrate and the light receiving elements in the light receiving section.

[0107] (Technology 5) The container device according to any one of Technology 1 to Technology 4, wherein at least one of the light emitting unit and the light receiving unit is contained in a box-shaped container. This prevents the light-emitting unit substrate and / or the light-receiving unit substrate and / or the transparent member from coming into contact with other members in the storage device, thereby reducing the effects of condensation water, temperature, or the insertion and removal of stored items on at least one of the light-emitting unit and the light-receiving unit.

[0108] (Technology 6) A storage device according to any one of Technology 1 to Technology 5, wherein the box body is provided with a bottom plate forming a bottom of the box body, and a mounting plate covering the bottom plate from above and on which items to be stored in the box body are placed, the mounting plate being provided with a through hole, and the bottom plate being provided with either the light emitting unit or the light receiving unit at a position overlapping the through hole in a planar view. As a result, the light emitting unit or the light receiving unit is disposed below the mounting plate, and the stored item detector can detect the stored item by emitting or receiving light through the through hole without coming into contact with the stored item.

[0109] (Technical Technique 7) The storage device according to Technical Technique 6, wherein the placement plate is detachably attached to the bottom plate. As a result, in the storage device, an operator can access the light-emitting unit or the light-receiving unit by removing the mounting plate, which makes it easy to replace or inspect the light-emitting unit or the light-receiving unit, or to perform work related to wiring.

[0110] (Technology 8) A storage device according to any one of Technology 1 to Technology 7, wherein the box body is provided with a top plate that forms a top surface of the box body, and either the light-emitting unit or the light-receiving unit is provided protruding from the top plate toward the internal space of the box body. This allows the light emitting element or the light receiving element to be disposed in the accommodation space, so that the light receiving element can more reliably receive the light from the light emitting portion.

[0111] (Technical Technique 9) The storage device according to Technical Technique 8, wherein the top plate is inclined so as to approach the bottom of the box body in at least one direction. As a result, in the case where condensation forms on the top plate of the box as the storage space is cooled, the inclination of the top plate allows the condensation to flow to the rear of the storage space, thereby preventing the condensation from accumulating on the top plate and from dropping onto the stored items.

[0112] (Technology 10) A storage device according to any one of Technology 1 to Technology 9, comprising a control board for controlling each part of the storage device, and a plurality of wirings extending from the control board are connected to each of the light-emitting unit and the light-receiving unit by waterproof connectors. As a result, the light-emitting unit and the light-receiving unit are electrically connected to the control board in a waterproof state, which prevents malfunctions from occurring even if condensation adheres to the light-emitting unit and the light-receiving unit.

[0113] (Technology 11) The storage device described in Technology 10, wherein the waterproof connector connected to the light-emitting unit is disposed inside a mounting plate on which items to be contained in the box are placed. This allows wiring work for the light-emitting unit to be performed in the box body of the storage device, which makes it easy to replace or inspect the light-emitting unit or perform work related to wiring.

[0114] (Technology 12) The housing device according to Technology 10 or 11, wherein the waterproof connector connected to the light receiving unit is disposed inside a wiring panel provided on a top plate of the box body. This allows wiring work for the light receiving unit to be performed in the box body of the storage device, which makes it easy to replace or inspect the light receiving unit or perform work related to wiring in the storage device.

[0115] (Technology 13) A storage device according to any one of Technology 1 to Technology 12, wherein the light-emitting unit is arranged on the bottom of the box body, and the light-receiving unit is arranged on the top surface of the box body. With this, in the storage device, when an item to be stored in the box is placed on the bottom, the light receiving unit does not detect the light from the light emitting unit, so the storage device can detect the item.

[0116] (Technology 14) A storage device including a housing, a plurality of box bodies provided inside the housing, and a cooling unit that cools the inside of the box bodies, wherein a storage item detector including a light-emitting unit and a light-receiving unit is provided inside each of the plurality of box bodies, and at least one of the light-emitting unit and the light-receiving unit inside each of the box bodies is covered by a transparent material that can transmit light. This prevents, for example, condensation water or the like from adhering to at least one of the light-emitting unit and the light-receiving unit in the storage device, and therefore prevents malfunctions in the storage item detector in the storage device. [Industrial Applicability]

[0117] The present disclosure is applicable to devices that have a refrigeration / freezing function and can store items. Specifically, the present disclosure is applicable to storage devices for home delivery, general refrigeration and freezing cooling devices, and the like. [Explanation of symbols]

[0118] 1. Containment Device 3. Device body 4. Cooling unit 13. Cabinet 20 box body 26 Bottom plate 27 Through hole 28 Tabletop 36 Contents detector 60 Loading Plate 61 Output hole 70 Light emitting part 72 Light emitting circuit board 74 Light emitting element 76 Frame 80 Light receiving section 82 Photoreceptor board 84 Photodetector 90 Circuit board case (container) 96, 98 Waterproof connector 99 Other wiring (wiring) R1~R3 ​​Transparent parts (1st~3rd transparent parts) R4 Glue S2 Storage space (space inside the box)

Claims

1. A storage device including a box and a cooling unit that cools the inside of the box, A content detector having a light emitting unit and a light receiving unit is provided inside the box, and at least one of the light emitting unit and the light receiving unit is covered with a transparent member that can transmit light. Containment device.

2. The light emitting unit includes: The light emitting element is covered with a first transparent member, and the entire light emitting substrate on which the light emitting element is mounted is covered with a second transparent member. The containment device of claim 1 .

3. A frame body surrounding the light emitting element is provided on the light emitting portion substrate, and the first transparent member is provided inside the frame body.

3. The containment device of claim 2.

4. The light receiving unit is the light receiving element and the light receiving substrate on which the light receiving element is mounted are entirely covered with a third transparent member; The containment device of claim 1 .

5. At least one of the light emitting unit and the light receiving unit is housed in a box-shaped container. A container device according to any one of claims 1 to 4.

6. The box body is provided with a bottom plate that forms a bottom of the box body, and a placement plate that covers the bottom plate from above and on which an item to be contained in the box body is placed, The mounting plate is provided with a through hole, The bottom plate is provided with either the light emitting portion or the light receiving portion at a position overlapping the through hole in a plan view. A container device according to any one of claims 1 to 4.

7. The mounting plate is detachably provided from the bottom plate.

7. The containment device of claim 6.

8. The box body is provided with a top plate that forms a top surface of the box body, The top plate is provided with either the light emitting unit or the light receiving unit protruding from the top plate toward the space inside the box body. A container device according to any one of claims 1 to 4.

9. The top plate is inclined so as to approach the bottom of the box body in at least one direction.

9. The containment device of claim 8.

10. A control board for controlling each part of the storage device is provided, A plurality of wirings extending from the control board are connected to the light-emitting unit and the light-receiving unit by waterproof connectors, A container device according to any one of claims 1 to 4.

11. The waterproof connector connected to the light emitting unit is disposed on the inside of a mounting plate on which an item to be contained in the box is placed.

11. The containment device of claim 10.

12. the waterproof connector connected to the light receiving unit is disposed inside a wiring panel provided on a top plate of the box body; 11. The containment device of claim 10.

13. The light emitting unit is disposed on the bottom of the box, The light receiving unit is disposed on the top surface of the box. A container device according to any one of claims 1 to 4.

14. A storage device including a housing, a plurality of boxes provided inside the housing, and a cooling unit that cools the inside of the boxes, A content detector having a light emitting unit and a light receiving unit is provided inside each of the plurality of boxes, and at least one of the light emitting unit and the light receiving unit inside each box is covered with a transparent member that can transmit light. Containment device.

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