JP6257706B2 - Storage and electronic refrigerator - Google Patents

Description

  The present invention relates to a small storage and an electronic refrigerator using the storage.

  Conventionally, a small electronic refrigerator having a Peltier element used in a hotel or a hospital is known (see, for example, Patent Document 1). Some electronic refrigerators can switch the cooling operation by the Peltier element using a rocker switch provided on the front surface. With this rocker switch, the cooling operation can be switched without connecting / disconnecting the power source of the electronic refrigerator, which can contribute to power saving.

JP 2000-304401 A

  However, the rocker switch is a self-holding type switch, and the cooling operation is stopped when the rocker switch is off regardless of whether the power supply is connected or disconnected. On the other hand, in a general refrigerator, there is no rocker switch, and the operation is switched by connecting and disconnecting the power supply. Therefore, if a staff member of a hotel or hospital forgets to turn on the locker switch, or if a user who is not used to an electronic refrigerator accidentally turns off the locker switch, the user etc. However, there was a problem that the cooling operation could not be resumed and there was a risk that a complaint would occur. In addition, there is an electronic refrigerator that uses an optical sensor that detects the presence of a person to perform a cooling operation when a person is present instead of the rocker switch, but there is a problem that the cost is high.

  The present invention has been made to solve the above-described problems, and is capable of switching the operation without inserting or removing the power source with an inexpensive configuration and starting the operation when the power source is turned on. The purpose is to provide a storage that can be used.

The storage according to the present invention includes a casing member that is a box-shaped member with an open front surface, a temperature adjustment device attached to the casing member, and a light emitting element, A storage device comprising a lighting device attached to the front, and is made of an L-shaped metal plate, and is provided with a gap that can be convected to the top surface and the back surface of the housing of the housing member. The lighting device includes a heat transfer plate joined to the heat transfer surface of the temperature adjustment device, and the lighting device includes a self-returning push switch that switches operation of the temperature adjustment device when the power is turned on, a light emitting element, and a push switch Is mounted and the wiring board is disposed obliquely at an inclination angle of 20 to 40 ° so that the light-emitting element faces the inner surface of the housing member in a state where the lighting device is attached to the housing member, and a push The end that pushes the switch has a spherical shape, , A push rod to push the push switch is mounted which is arranged obliquely to the wiring board by being pushed those equipped with.

  According to the present invention, since it is configured as described above, the operation can be switched without plugging in / out the power source with an inexpensive configuration, and the operation can be started when the power source is turned on.

It is a figure which shows the structural example of the electronic refrigerator which concerns on Embodiment 1 of this invention, (a) It is a front view, (b) It is a side view. It is a disassembled perspective view which shows the structural example of the electronic refrigerator (except a front door) which concerns on Embodiment 1 of this invention. It is a figure which shows the state which opened the front door of the electronic refrigerator which concerns on Embodiment 1 of this invention, (a) It is a front view, (b) It is the perspective view seen from the bottom. It is a figure which shows the structural example of the electronic refrigerator which concerns on Embodiment 1 of this invention, (a) It is a front view which shows the state which removed the front door and the shelf, (b) The front door, the shelf, and the heat exchanger plate It is a front view which shows the state which removed. It is a figure which shows the structural example of the electronic refrigerator which concerns on Embodiment 1 of this invention, (a) It is a rear view which shows the state which attached the back cover, (b) The back view which shows the state which removed the back cover is there. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the structural example of the electronic refrigerator which concerns on Embodiment 1 of this invention, (a) It is AA sectional view taken on the line of Fig.1 (a), It is the B section enlarged view of (b) (a). is there. It is a figure which shows the structural example of the electronic refrigerator which concerns on Embodiment 1 of this invention, (a) CC sectional view taken on the line of Fig.4 (a), (b) CC line sectional perspective view. . It is a figure which shows the structural example of the electronic refrigerator which concerns on Embodiment 1 of this invention, (a) It is the DD sectional view taken on the line of FIG.1 (b), (b) EE of FIG.4 (a) It is line sectional drawing, (c) It is an EE sectional view perspective view. It is a perspective view which shows the structural example of the heat exchanger plate in Embodiment 1 of this invention. It is a figure explaining the effect by the heat exchanger plate in Embodiment 1 of this invention, (a) It is a figure which shows the image of the heat leak by the conventional heat insulation container, (b) The heat leak by the heat insulation container of this invention It is a figure which shows an image. It is a figure which shows the structural example of the dew tray in Embodiment 1 of this invention, (a) It is the perspective view seen from the front side, (b) It is the perspective view seen from the back side. It is a perspective view which shows the attachment or detachment operation | movement of the dew tray in Embodiment 1 of this invention. It is a figure which shows the state which accommodated the electronic refrigerator which concerns on Embodiment 1 of this invention in furniture, (a) It is a perspective view, (b) It is a front view, (c) The FF line | wire of (b) It is sectional drawing. It is a figure which shows the structural example of the illuminating device in Embodiment 1 of this invention, (a) It is a perspective view, (b) It is the sectional view on the GG line of (a). It is a figure which shows the structural example of the illuminating device in Embodiment 1 of this invention, (a) It is the exploded perspective view seen from the front side, (b) It is the exploded perspective view seen from the back side. It is a circuit diagram which shows the structural example of the illuminating device in Embodiment 1 of this invention. It is a flowchart explaining the operation example of the electronic refrigerator which concerns on Embodiment 1 of this invention. It is a block diagram which shows the structural example of the power supply board in Embodiment 1 of this invention. It is a figure explaining the operation example of the power supply board | substrate of FIG. 18, (a) It is a figure which shows operation | movement outline | summary, (b) It is a time chart which shows operation | movement of each part. It is a block diagram which shows the structural example of the control circuit in Embodiment 1 of this invention. It is a flowchart which shows the example of control operation of the temperature control apparatus by the control circuit and power supply circuit in Embodiment 1 of this invention. It is a figure which shows the example of control operation of the temperature control apparatus by the control circuit and power supply circuit in Embodiment 1 of this invention. It is a block diagram which shows another structural example of the power supply board in Embodiment 1 of this invention. It is a figure explaining the operation example of the power supply board | substrate of FIG. 23, (a) It is a figure which shows operation | movement outline | summary, (b) It is a time chart which shows operation | movement of each part.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
Embodiment 1 FIG.
The electronic storage is a small device (accommodating about 10 to 40 liters) that keeps cold or warm by using one Peltier element 91 having a quiet and compact size. Hereinafter, an electronic refrigerator that performs cold storage will be described as an example of the electronic storage.
This electronic refrigerator includes a heat insulating container 1, a front door 2, a hinge mechanism 3 and a rotation mechanism 4 as shown in FIGS.

  The heat insulating container 1 is a box-shaped member whose front surface is opened, and contains items (food, beverages, etc.) inside. Here, the thing of the internal dimension which can accommodate a 2 liter PET bottle is assumed.

Moreover, as shown in FIG. 3 etc., the insertion opening 51 which can attach the hinge mechanism 3 is provided in the front upper part of the heat insulation container 1 at right and left. Moreover, the cover 52 is covered and concealed in the insertion port 51 to which the hinge mechanism 3 cannot be attached.
Further, as shown in FIG. 2 and the like, the left and right front legs 64 of the heat insulating container 1 are provided with insertion holes 641 to which the rotation mechanism 4 can be attached. The insertion hole 641 to which the rotation mechanism 4 cannot be attached is covered with a cap (not shown).
Moreover, as shown in FIG. 3 etc., the gasket contact | adherence surface 53 is provided in the front surface of the heat insulation container 1 at frame shape. Other detailed configuration examples of the heat insulating container 1 will be described later.

The front door 2 can open and close the front surface of the heat insulation container 1 by attaching the hinge mechanism 3 and the rotation mechanism 4 attached to the left and right ones to the left and right insertion ports 51 and 641 of the heat insulation container 1, respectively. Is. Insulating material (not shown) such as urethane foam is injected into the front door 2.
Moreover, as shown in FIG. 3 etc., the gasket 21 is provided in frame shape on the back surface of the front door 2 so as to face the gasket contact surface 53 of the heat insulating container 1. A magnet 22 is attached to the back surface of the front door 2 as shown in FIG. The magnet 22 applies a magnetic field to a reed switch 1312 of the lighting device 13 to be described later and switches the contact connection in a state where the front door 2 is closed.

The hinge mechanism 3 supports the front door 2 at the upper part so as to be rotatable with respect to the heat insulating container 1.
The rotating mechanism 4 supports the front door 2 at the lower part so as to be rotatable with respect to the heat insulating container 1.

Next, the structural example of the heat insulation container 1 is demonstrated.
As shown in FIGS. 2 to 8, the heat insulating container 1 includes a casing member 7 including an inner shell member 5 and an outer shell member 6, a heat transfer plate 8, a temperature adjusting device 9 having a Peltier element 91, a back cover 10, and an air blower. A fan housing 11, a dew tray 12, a lighting device 13, and a substrate storage box 15 storing a power supply substrate 14 are provided.

The inner member 5 is a box-shaped member that is made of a resin member (polypropylene or the like) and has a front surface that is open, and can store a stored item therein.
Further, as shown in FIG. 4B and the like, the inner groove 5 of the inner shell member 5 is provided with a housing groove portion 54 that is recessed one step so that the heat transfer plate 8 can be accommodated. In addition, as shown to Fig.6 (a) etc., the depth of the accommodation groove part 54 is the depth which the back surface in the store | warehouse | chamber of an electronic refrigerator becomes substantially flush in the state in which the heat exchanger plate 8 was attached. It is configured. Further, as shown in FIG. 4B and the like, a support portion 55 that supports the heat transfer plate 8 is integrally provided in the accommodation groove portion 54. Moreover, as shown in FIG. 7 etc., the attaching part 56 for attaching the illuminating device 13 is provided ahead of the interior top surface of the inner shell member 5. Further, as shown in FIG. 3 and the like, the inner member 5 is provided with a groove portion 58 for installing the shelf 57.

  The outer member 6 is a box-shaped member whose front surface is opened, and constitutes the outer shell of the heat insulating container 1. As shown in FIG. 2 and the like, the outer member 6 includes an outer sheet metal 61 that forms a lower surface and left and right side surfaces, a top plate 62 that forms an upper surface, a back plate 63 that forms a rear surface, and a front surface of the lower surface of the outer sheet metal 61. The front leg portion 64 is attached to the left and right sides. In addition, rear leg portions 65 are provided on the left and right sides of the lower surface of the back plate 63. The front leg portion 64 and the rear leg portion 65 are provided with step portions 642 and 651 for slidably supporting the dew tray 12, and the front leg portion 64 and the rear leg portion 65 are respectively stepped portions 642. , 651 are arranged to face each other. Further, the back plate 63 is provided with an injection port 66 for injecting a heat insulating material 73 such as urethane foam (see FIG. 10) into the housing member 7.

  As shown in FIG. 6A and the like, an insertion hole 71 is provided on the back surface of the housing member 7. The insertion hole 71 is for inserting a heat transfer block 92 (described later) of the temperature adjusting device 9 into the inner member 5. Further, as shown in FIG. 8, a drain tube 72 is provided on the lower surface of the housing member 7. The drain cylinder 72 is for guiding drain water adhering to the inner surface of the inner shell member 5 to the dew receiving tray 12. Further, the drain cylinder 72 is disposed at a position closer to the side surface (near the right side surface in FIG. 8) than the center of the bottom surface in the warehouse.

  The heat transfer plate 8 is attached to the inside of the inner member 5 and transfers heat from the temperature adjusting device 9 to the interior. A detailed configuration example of the heat transfer plate 8 will be described later.

The temperature adjusting device 9 generates heat. The temperature adjusting device 9 includes a Peltier element 91, a heat transfer block 92, and a heat sink 93 as shown in FIG.
The Peltier element 91 generates heat in accordance with control (drive voltage) by the power supply substrate 14.

  One surface of the heat transfer block 92 is attached to the use side heat exchange surface of the Peltier element 91, and the other surface (heat transfer surface) is joined to the back surface of the heat transfer plate 8 via the insertion hole 71 with a fixing screw 94 or the like. Is. The Peltier element 91 is configured to be detachable from the back surface with screws or the like with respect to the heat transfer block 92. The heat transfer block 92 is made of an aluminum-based alloy having good thermal conductivity. The heat transfer block 92 enables heat transfer from the use side heat exchange surface of the Peltier element 91 to the heat transfer surface. In addition, as shown in FIG.8 (c) etc., after attaching to the housing member 7 via the insertion hole 71, the heat transfer block 92 is for preventing the dew condensation water from entering the heat transfer surface. A rubber plate 95 is fitted. The rubber plate 95 has a thickness of about 3 mm.

  The heat sink 93 is thermally conductively joined to the heat source side heat exchange surface of the Peltier element 91. The heat sink 93 is configured by arranging a large number of aluminum fins in the vertical direction so that heat is exchanged by circulating air in the vertical direction.

  As shown in FIGS. 5, 6, etc., the back cover 10 is a box-shaped member made of a resin member with the front surface opened, and is attached so as to cover the entire back surface of the outer shell member 6. The back cover 10 accommodates the substrate storage box 15 attached to the back surface of the outer member 6 and forms a ventilation path 101 for cooling the heat sink 93 on the rear surface of the outer member 6. As shown in FIG. 6A and the like, the back cover 10 has a lower surface inclined upward as it goes rearward. Further, the upper surface is inclined downward as it goes rearward. A suction port 102 for sucking outside air is provided on the lower surface of the back cover 10. Further, an exhaust port 103 for discharging the air that has passed through the ventilation path 101 to the outside is provided on the upper surface of the back cover 10.

  Thus, the distance between the installation surface (floor surface) of the electronic refrigerator and the suction port 102 can be increased by tilting the suction port 102 upward rearward. As a result, it is possible to reduce the resistance of the air path that sucks in the outside air, and it is possible to suppress the suction of foreign matters such as dust from the installation surface, and it is possible to suppress the clogging of the filter 126 described later and perform maintenance such as cleaning of the filter 126. Can be made easier.

The blower fan 11 is disposed between the suction port 102 and the exhaust port 103 so as to face the inside of the exhaust port 103, and rotates the fan according to control (drive voltage) by the power supply substrate 14. Moreover, the ventilation fan 11 is arrange | positioned diagonally with respect to the installation surface of an electronic refrigerator. The air sucked from the lower suction port 102 of the electronic refrigerator is heat-exchanged through the heat sink 93 and the substrate storage box 15 by the blower fan 11 arranged at the upper part of the electronic refrigerator, and is discharged from the upper exhaust port 103. .
Here, by setting the blower fan 11 in the upper part of the electronic refrigerator, the distance from the blower fan 11 to the suction port 102 can be increased, and the wind speed of the intake air sucked from the suction port 102 is set not to be too strong. Therefore, inhalation of foreign matters such as dust can be further suppressed.

  The dew receiving tray 12 is a plate made of a resin member that is detachably provided on the lower surface of the housing member 7 from the front and receives drain water flowing through the drain tube 72. A detailed configuration example of the dew tray 12 will be described later.

  The illuminating device 13 has an LED (light emitting element) 1311 and is attached to the front of the inner top surface of the inner member 5 to illuminate the interior. Moreover, this illuminating device 13 is also provided with the operation switch function which switches the operation | movement of each part (Temperature adjustment apparatus 9, the ventilation fan 11, and LED1311) interlockingly. A detailed configuration example of the illumination device 13 will be described later.

  The substrate storage box 15 stores the power supply substrate 14 that controls the operation of each part of the electronic refrigerator, and is attached to the back surface of the outer shell member 6. A detailed configuration example of the power supply substrate 14 stored in the substrate storage box 15 will be described later.

Next, a configuration example of the heat transfer plate 8 will be described.
The heat transfer plate 8 is attached to the inside of the inner member 5 and transfers heat from the temperature adjusting device 9 to the interior. As shown in FIG. 9 and the like, the heat transfer plate 8 is formed in an L shape by bending a metal plate such as aluminum. The heat transfer plate 8 is provided with a screw hole 81 through which the fixing screw 94 is passed and a support hole 82 through which the support portion 55 is passed.

  The heat transfer plate 8 is bent at a slight obtuse angle (93 to 100 °) rather than at a right angle. Thereby, a dimensional accuracy can be stabilized rather than the case where the heat exchanger plate 8 is comprised by bending a metal plate at right angle.

  Further, the left and right widths of the heat transfer plate 8 are configured to have a gap (1 to 3 mm) with respect to the left and right widths of the accommodation groove portion 54 of the inner member 5 when accommodated in the accommodation groove portion 54. ing. Thereby, it is easy to attach the heat transfer plate 8 to the inner member 5, and it is difficult to perform cleaning by touching the corner of the heat transfer plate 8 when a staff of a hotel or a hospital cleans the electronic refrigerator or the like. It can be configured so that there is no such thing.

Moreover, as shown to Fig.6 (a) etc., the length of the upper surface of the heat exchanger plate 8 is comprised short with respect to the length of the internal top surface of the internal member 5. As shown in FIG. This is because if the upper surface of the heat transfer plate 8 extends to the vicinity of the open surface of the electronic refrigerator, the heat transfer plate 8 transfers the heat outside the chamber into the chamber, and the cooling effect is reduced. . In the figure, in order to prevent interference with the lighting device 13, the length of the upper surface of the heat transfer plate 8 is configured to be longer than the position of the lighting device 13.
Moreover, the appearance can be improved by making the inner surfaces of the heat transfer plate 8 and the inner shell member 5 dark color such as black.

  The heat transfer plate 8 configured as described above has a temperature adjustment device in which the support portion 55 is passed through the support hole 82 and the fixing screw 94 is passed through the screw hole 81 as shown in FIGS. Nine heat transfer blocks 92 are joined. Further, at this time, the heat transfer plate 8 is attached to the inner top surface and inner back surface of the inner member 5 with a gap (2 to 6 mm) capable of cooling convection. Note that the wider the gap, the better the cooling convection. Further, it is necessary to prevent the staff from getting into the back side of the heat transfer plate 8 when cleaning or the like, and making it difficult to perform cleaning. Therefore, the clearance dimension between the heat exchanger plate 8 and the inner member 5 is designed in consideration of these. Moreover, the support part 55 plays the role which relieve | moderates the shear stress added to the fixing screw 94 by the space maintenance between the heat exchanger plate 8 and the inner shell member 5, transportation vibration, etc.

Next, the effect by the heat exchanger plate 8 of this invention is demonstrated using FIG. FIG. 10A is a diagram showing an image of heat leakage on one surface of a conventional heat insulating container, and FIG. 10B shows an image of heat leakage on one surface of the heat insulating container 1 of the present invention. FIG. In addition, in FIG. 10, the case where foaming urethane is used as the heat insulating materials 73 and 73b is shown. Moreover, the arrow shown to a figure has shown the moving direction of heat. The inner shell member 5 and the outer shell members 6 and 6b are resin members, and the heat transfer plate 8 and the inner shell member 5b (heat transfer plate 8b) are aluminum plates.
As shown in FIG. 10A, in the conventional configuration, the inner member 5b itself constitutes the heat transfer plate 8b and is in direct contact with the heat insulating material 73b. Therefore, heat exchange can be performed only on the surface of the inner member 5 in the warehouse. On the other hand, as shown in FIG. 10B, in the configuration of the present invention, the inner member 5 and the heat transfer plate 8 are separated and a space is provided between the inner member 5 and the heat transfer plate 8. Yes. Therefore, heat exchange can be performed on both surfaces of the heat transfer plate 8 in the cabinet, and the cooling performance is improved as compared with FIG.

  Further, in the conventional configuration shown in FIG. 10A, since the inner shell member 5b constituting the heat transfer plate 8b and the heat insulating material 73b are in direct contact with each other, the temperature of the inner end surface of the heat insulating material 73b is lowered. , Heat leakage increases. On the other hand, in the configuration of the present invention shown in FIG. 10B, since the space is provided between the inner shell member 5 and the heat transfer plate 8, the temperature of the inner end surface of the heat insulating material 73 is increased (outside air temperature). Cooling performance is improved because of less heat leakage. This means that the heat insulating material 73 can be made thin when the cooling performance of the present invention is the same as that of the conventional configuration, and the electronic refrigerator can be reduced in size and cost.

  In FIG. 10, the thickness of the heat transfer plate 8 in the present invention is thicker than the thickness of the inner shell member 5 b (heat transfer plate 8 b) of the conventional configuration, which is 5 of the inner shell member 5 b in the conventional configuration. This is because the surface is cooled by using the heat transfer plate 8b, whereas in the present invention, the cooling is performed by the two heat transfer plates 8.

In addition, in the conventional configuration, since the inner member 5b made of aluminum having five surfaces is used, the inner member 5b is difficult to be formed, and the volume is not large enough to be stacked. There was a problem that it took a lot.
On the other hand, in the present invention, the inner shell member 5 is made of a resin member, and the aluminum heat transfer plate 8 bent in an L-shape is attached to the inner shell member 5, so that the conventional structure is used. There is no need to form a metal inner member 5b having five surfaces. In addition, the heat transfer plate 8 of the present invention only needs to be bent in an L shape, so that it can be easily molded, and can be stacked and transported. Can be reduced.

Next, a configuration example of the dew tray 12 will be described.
As shown in FIG. 12 and the like, the dew receiving tray 12 is a tray made of a resin member that is detachably provided on the lower surface of the casing member 7 from the front and receives drain water flowing through the drain tube 72.
As shown in FIG. 11 and the like, the surface of the dew tray 12 is provided with a convex surface 121 extending from the front to the rear at the center. The convex surface 121 forms a communication air passage 122 on the back surface of the dew tray 12. The communication air passage 122 communicates with the air passage 101 in a state where the dew receiving tray 12 is attached to the housing member 7. Further, on the surface of the dew tray 12, dish parts 123 and 124 divided by the convex surface 121 are configured.

As shown in FIG. 5 (b), the temperature adjusting device 9 is arranged slightly shifted left and right from the center position of the housing member 7 (shifted to the right in FIG. 5 (b)). Therefore, the rear side of the communication air passage 122 is also configured to be guided to the temperature adjusting device 9 side. In addition, the front side of the communication air passage 122 is configured in a symmetric shape for improving aesthetics.
Thus, by providing the communication air passage 122 in the center, it is possible to easily flow outside air from the front side of the electronic refrigerator to the rear air passage 101, and the cooling effect in the air passage 101 can be enhanced.

  Note that one of the tray parts 123 and 124 (the dish part 123 in FIG. 11) is at a position facing the drain tube 72 in a state where the dew receiving tray 12 is attached to the housing member 7 and the other (the dish part in FIG. Part 124) is configured to have a larger amount of drain water than the part 124).

  Further, the convex surface 121 is configured to be shallow with respect to the depth of the dish portions 123 and 124. This is to allow the drain water to flow to the dish portion 124 when the drain water becomes full in the dish portion 123. In addition, the breadth and depth are designed so that the amount of drain water contained in the entire dew tray 12 is not reduced compared to the conventional configuration.

  Further, the dew receiving tray 12 is configured to have a length that protrudes beyond the position of the gasket contact surface 53 of the heat insulating container 1 when attached to the housing member 7. This is because dew may fall from the gasket contact surface 53, and this dew is received to prevent it from dripping onto the installation surface of the electronic refrigerator.

In addition, the rear wall of the dew tray 12 is designed to have a height such that there is no gap between the dew tray 12 and the housing member 7 when attached to the housing member 7. This is because the front side of the dew tray 12 is open to the outside, so that air that has passed between the dew tray 12 and the housing member 7 enters the ventilation path 101 without passing through the filter 126. This is to prevent it. Note that a slight gap is allowed in order to improve the mounting property.
Further, the dew receiving tray 12 is provided with guide portions 125 guided by step portions 642 and 651 of the front leg portion 64 and the rear leg portion 65 on both side surfaces.

  A filter 126 made of a resin member is rotatably attached to the rear portion of the dew tray 12. The filter 126 is disposed opposite to the suction port 102 in a state where the dew receiving tray 12 is attached to the housing member 7, and removes foreign matters such as dust from the air flowing into the ventilation path 101 through the suction port 102. Is. The filter 126 is configured not to rotate below the horizontal direction with respect to the dew tray 12.

  Then, as shown in FIG. 6A and the like, when the dew tray 12 is inserted into the lower surface of the housing member 7, the filter 126 is guided upward along the inclination of the lower surface of the back cover 10 having the suction port 102, Opposed to the suction port 102. Moreover, what is necessary is just to pull out the dew receiving tray 12 ahead, when removing the filter 126. FIG. Therefore, even when the electronic refrigerator is installed in a wall or furniture and maintenance can be performed only from the front door 2 side, the filter 126 can be easily detached and cleaned. In addition, since the filter 126 is inclined upward along the suction port 102, the distance between the filter 126 and the floor surface can be increased, and it is difficult to suck in foreign matters such as dust accumulated on the installation surface of the electronic refrigerator. Thus, the period during which the filter 126 needs to be cleaned can be lengthened.

Next, the effect of the dew receiving tray 12 of the present invention will be described with reference to FIG. FIG. 13 is a view showing a case where the electronic refrigerator of the present invention is stored in furniture (storage container) 200 whose front surface is open.
As shown in FIG. 13, the furniture 200 for storing an electronic refrigerator provided in a hotel or hospital is often provided with vents 201 and 202 for venting forward and backward.

  On the other hand, in a conventional electronic refrigerator, only a suction port and an exhaust port are provided on the back side, and air (hot air) exhausted from the exhaust port is sucked again from the suction port. Therefore, there has been a problem that the cooling efficiency of the heat sink is lowered and the temperature of the substrate storage box is increased, so that the substrate life is shortened.

  On the other hand, in the electronic refrigerator of the present invention, a communication air passage 122 that leads from the front side to the rear air passage 101 is provided in the center of the back surface of the dew tray 12. As a result, even when the electronic refrigerator is stored in the furniture 200, the air flowing in from the vent 201 in front of the furniture 200 flows into the suction port 102 on the back through the communication air passage 122. And after passing through the ventilation path 101 and being discharged from the upper exhaust port 103, it is discharged to the outside through the vent hole 202 at the rear of the furniture 200. Therefore, the heat sink 93 can be efficiently cooled with respect to the conventional configuration, and an improvement in the cooling performance of the temperature adjusting device 9 and an energy saving effect can be expected. In addition, since the substrate temperature can be lowered, it is possible to suppress the life reduction of the power supply substrate 14.

  In addition, in the conventional structure, since the metal inner member was used, it was necessary to make the position of the drain tube near the center due to molding restrictions. On the other hand, in the present invention, the inner shell member 5 is made of a resin member, so that the position of the drain tube 72 can be freely designed, and the inner shell member 5 can be moved toward the end. Therefore, it is possible to provide the convex surface 121 at the center of the dew receiving tray 12 to form the communication air passage 122, so that the outside air can be easily sucked.

Moreover, in the conventional structure, the suction inlet and the exhaust outlet are arrange | positioned at the right and left of the back side. In contrast, in the present invention, the arrangement of the heat sink 93, the substrate storage box 15, and the blower fan 11 is changed, the suction port 102 is provided in the lower part, and the exhaust port 103 is provided in the upper part. Thereby, even if it is a case where an electronic refrigerator is accommodated in the furniture 200, it can be set as the structure which is easy to ventilate. As a result, the heat sink 93 can be efficiently cooled, and an improvement in the cooling performance of the temperature adjusting device 9 and an energy saving effect can be expected. Moreover, since the temperature rise of the substrate storage box 15 can also be suppressed, the life of the power supply substrate 14 can be extended.
In addition, by disposing the blower fan 11 at an angle, even when foreign matter such as dust falls from the vent 202 of the furniture 200, the foreign matter can be prevented from entering the ventilation path 101.

Next, a configuration example of the illumination device 13 will be described.
The illuminating device 13 includes an LED 1311 and is attached to the front of the inner top surface of the inner member 5 to illuminate the interior. Moreover, this illuminating device 13 is also provided with the operation switch function which switches the operation | movement of each part (Temperature adjustment apparatus 9, the ventilation fan 11, and LED1311) interlockingly. As shown in FIGS. 14 and 15, the lighting device 13 includes a wiring substrate 131, a substrate holder 132, a push rod 133, and a substrate storage container 134.

  In the wiring board 131, as shown in FIG. 15A, the LED 1311 that emits light, the reed switch 1312 that switches on and off of the LED 1311, and the operation of each of the above parts in a state where the power is turned on are interlocked. A tactile switch 1313 for switching is mounted. In addition, the wiring board 131 is connected to the power supply board 14 stored in the board storage box 15 via the wiring connection portion 1314.

The reed switch 1312 switches the contact connection in response to a magnetic field from the magnet 22 attached to the back surface of the front door 2. That is, as shown in FIG. 6, the reed switch 1312 turns off the LED 1311 when the front door 2 is closed, and turns on the LED 1311 when the front door 2 is open.
Here, a case where the tactile switch 1313 is used will be described as an example, but a self-returning push switch may be used. The self-returning push switch is, for example, that when the switch is pressed, the contact of the opened switch is closed and the contact is closed while the switch is kept pressed, and the switch is pressed. If the switch is stopped, the closed contact will open and return to its original state, or when the switch is pressed, the closed contact will be open and the contact will remain open while the switch is pressed. If you stop pressing the switch, the open contact is closed and the original state is restored. An example of the circuit configuration of the wiring board 131 is shown in FIG.

As shown in FIG. 6B and the like, the substrate holder 132 holds the wiring substrate 131 obliquely so that the LED 1311 faces the interior rear surface side in a state where the illumination device 13 is attached to the attachment portion 56. Is. In this way, by holding the wiring board 131 at an angle, the interior can be illuminated to the back.
However, as the tilt angle increases, the projection amount of the lighting device 13 in the cabinet increases, and the sensitivity of the reed switch 1312 also decreases, so the tilt angle of the wiring board 131 is set to 20 to 40 ° (FIG. 6). In (b), it is 30 °). Further, the protruding amount of the lighting device 13 is set within the range up to the position of the upper surface of the heat transfer plate 8 attached to the inner member 5. By projecting the illuminating device 13 from the top of the cabinet, the end of the heat transfer plate 8 can be partially inconspicuous when the electronic refrigerator is viewed from the front, and the appearance can be improved.

  Further, as shown in FIG. 15A and the like, the substrate holder 132 is provided with a light transmitting portion 1321 that transmits light from the LED 1311 at a position facing the LED 1311. The light transmission part 1321 is a box-shaped member with a surface facing the LED 1311 open. Further, the substrate holder 132 is provided with a bar support portion 1322 that holds the push bar 133 so as to be movable up and down. Further, as shown in FIG. 15B, the rod support portion 1322 is provided with a through hole 1323 through which a switch pressing portion 1332 described later of the push rod 133 passes.

  The push bar 133 is a bar that is housed in the bar support part 1322 of the substrate holder 132 and pushes the tactile switch 1313 by being pushed upward by a staff member or the like in a state where the lighting device 13 is attached to the attachment part 56. . The push bar 133 includes a supported portion 1331, a switch pressing portion 1332, and a pressed portion 1333.

The supported portion 1331 is configured on a circular plate, and is held so as to be slidable up and down between the rod support portion 1322 of the substrate holder 132 and the substrate storage container 134.
The pressed portion 1333 is exposed to the outside through a through-hole 1342 described later of the substrate storage container 134 and is pressed by a staff or the like.

The switch pressing portion 1332 faces the tactile switch 1313 through the through hole 1323 of the rod support portion 1322, and the pressed portion 1333 is pushed and the push rod 133 moves to the tactile switch 1313 side to push the tactile switch 1313. Is. The tip of the switch pressing portion 1332 is formed in a spherical shape. 14B, the axial direction of the push rod 133 is deviated from the center position of the tactile switch 1313, and the center position of the tactile switch 1313 when the tip of the switch pressing portion 1332 touches the tactile switch 1313. It is arrange | positioned so that it may become a position which touches. In this way, the end of the switch pressing portion 1332 is spherical, and the contact point (force point) with the tactile switch 1313 is set to the center position of the tactile switch 1313, so that the stress at the time of contact acts in the center direction of the tactile switch 1313. Since the contact surface pressure is reduced, a smooth operational feeling can be obtained stably.
By this push bar 133, the tactile switch 1313 arranged obliquely can be easily operated by the vertical movement.

  As shown in FIG. 15 and the like, the substrate storage container 134 stores the wiring substrate 131, the substrate holder 132, and the push rod 133 and is attached to the attachment portion 56 of the inner member 5. The substrate storage container 134 is provided with an opening 1341 that exposes the light transmitting portion 1321 to the bottom surface in the cabinet and the back surface in the cabinet when the lighting device 13 is attached to the mounting portion 56. The opening 1341 can effectively illuminate the light from the LED 1311 up to the inner side of the cabinet with directivity. In addition, since direct light does not enter the user's line of sight, the user will not feel dazzling even in the dark at midnight.

  Further, the substrate storage container 134 is provided with a through hole 1342 for exposing the pressed portion 1333 of the push rod 133 to the outside. A recess 1343 is formed around the through hole 1342 on the surface of the substrate storage container 134. The depth of the concave portion 1343 is configured to be deeper than the protruding amount of the pressed portion 1333 from the through hole 1342. That is, the pressed portion 1333 of the push bar 133 does not protrude from the surface of the substrate storage container 134. With this concave portion 1343, the push rod 133 can be disposed at a position where it cannot be directly seen in normal use by a user or the like. Therefore, the user or the like can use the electronic refrigerator without being aware of the presence of the tactile switch 1313, and it is difficult for the user or the like to touch the tactile switch 1313 and stop the operation. Can do. The substrate storage container 134 is provided with an engaging portion (engaging claw in the figure) 1344 for attaching the lighting device 13 to the attaching portion 56.

Next, an operation example of an electronic refrigerator using the tactile switch 1313 of the present invention will be described. Here, a case where the long press determination of the tactile switch 1313 to be described later is not considered, and a case where the operation is switched simply by pressing the tactile switch 1313 will be described as an example.
In the operation example of the electronic refrigerator, as shown in FIG. 17, when the power (100 V) is turned on (step ST1701), the electronic refrigerator automatically starts operation of the temperature adjusting device 9 and the blower fan 11 (step ST1702). ). Thereafter, when the tactile switch 1313 is pushed by staff or the like (step ST1703), the electronic refrigerator stops the operation of the temperature adjusting device 9 and the blower fan 11 (step ST1704). After that, when the tactile switch 1313 is pressed again (step ST1705), the electronic refrigerator starts operation of each part (the temperature adjusting device 9, the blower fan 11, and the LED 1311) (step ST1702). After that, in a state where the power is turned on, the start and stop of the operation of each unit are sequentially switched each time the tactile switch 1313 is pressed.

  On the other hand, when the power is turned off, the electronic refrigerator stops the operation of each part (steps ST1706 and 1707). Thereafter, when the power is turned on (step ST1701), the electronic refrigerator always starts the operation of the temperature adjusting device 9 and the blower fan 11 (step ST1702). That is, even when the power is turned off while the operation of each unit is stopped by the tactile switch 1313 (standby state) and then the power is turned on, the operation is not started from the standby state (tactile switch 1313). Does not maintain a self-state).

Next, the effect by the illuminating device 13 of this invention is demonstrated.
Some conventional electronic refrigerators use a rocker switch provided on the front surface to enable switching of the cooling operation by the Peltier element. With this rocker switch, the cooling operation can be switched without connecting / disconnecting the power source of the electronic refrigerator, which can contribute to power saving. However, the rocker switch is a self-holding type switch, and the cooling operation is stopped when the rocker switch is off regardless of whether the power supply is connected or disconnected. On the other hand, in a general refrigerator, there is no rocker switch, and the operation is switched by connecting and disconnecting the power supply. Therefore, if the staff forgets to turn on the rocker switch, or if the user who is not used to the electronic refrigerator accidentally turns off the rocker switch, the cooling operation can be performed even if the user etc. There was a problem that it could not be resumed and there was a risk of complaints. In addition, there is an electronic refrigerator that uses an optical sensor that detects the presence of a person to perform a cooling operation when a person is present instead of the rocker switch, but there is a problem that the cost is high.

  On the other hand, in the present invention, a self-returning push switch (tactile switch 1313) is mounted on the lighting device 13 provided on the top surface of the interior. As a result, the operation can be switched without connecting or disconnecting the power source, and the operation can be started when the power source is turned on. That is, for example, even if the staff or the like forgets to turn on the tactile switch 1313, the user can start the operation only by turning on the power again like a general refrigerator. In addition, remote forcible operation by turning on the power again becomes possible.

  Further, by mounting the tactile switch 1313 on the lighting device 13, it is possible to make the tactile switch 1313 difficult to see, and it is possible to avoid an erroneous operation by the user or the like without impairing the ease of operation by the staff or the like. . Moreover, the designability can also be improved. The tactile switch 1313 is less expensive than the rocker switch and the optical sensor. In addition, by mounting the tactile switch 1313 on the wiring board 131 to which the LEDs 1311 are connected, a compact configuration can be achieved with a single board. Further, the tactile switch 1313 switches the operation of the temperature adjustment device 9 and the LED 1311 in conjunction with each other, so that the lighting device 13 can have a function of an operation lamp, and the staff or the like knows the operation status of the temperature adjustment device 9. Can be made easier.

Next, a configuration example of the power supply board 14 will be described.
As shown in FIG. 18, the power supply substrate 14 includes a time constant filter 141, a latch circuit 142, a control circuit 143, and a power supply circuit 144.

  The time constant filter 141 outputs a signal when the pressing time of the tactile switch 1313 is longer than a specified time. A capacitor can be used as the time constant filter 141. In the example of FIG. 18, the specified time T is set to 1 second, for example, using a single time constant filter 141.

  The latch circuit 142 receives the signal output from the time constant filter 141 and switches the output signal (H or L). By switching the output signal, the operation start and operation stop are instructed. In the example of FIG. 18, the latch circuit 142 switches the output signal every time a signal from the time constant filter 141 is received. This latch circuit 142 enables operation control by operating the push rod 133.

The control circuit 143 controls the power supply circuit 144 according to the insertion / extraction of the power supply and the signal from the latch circuit 142.
The power supply circuit 144 applies a drive voltage to each part (the temperature adjusting device 9, the blower fan 11, and the LED 1311) under the control of the control circuit 143.

Next, an operation example using the power supply substrate 14 of FIG. 18 will be described.
In the operation example using the power supply board 14 of FIG. 18, as shown in FIG. 19, the time constant filter 141 first outputs a signal when the pressing time a of the tactile switch 1313 is longer than the specified time T. That is, when the pressing time “a” of the tactile switch 1313 is equal to or shorter than the specified time T, the operation switching is not performed. Thereby, it is possible to avoid erroneous operation even when the user or the like touches the tactile switch 1313 unintentionally when taking in or out the stored items.

Next, each time the latch circuit 142 receives a signal from the time constant filter 141, the latch circuit 142 switches and outputs the output signal (H or L).
Next, the control circuit 143 controls the power supply circuit 144 in accordance with the insertion / extraction of the power supply and the signal from the latch circuit 142.
Next, the power supply circuit 144 applies a drive voltage to each part (the temperature adjusting device 9, the blower fan 11, and the LED 1311) according to the control from the control circuit 143. Note that the LED 1311 is turned on only when the front door 2 is open, and is turned off when the front door 2 is closed, even when the LED 1311 is turned on in conjunction with the temperature adjustment device 9 and the blower fan 11. .

Next, a configuration example of the control circuit 143 related to the control of the temperature adjusting device 9 will be described.
As illustrated in FIG. 20, the control circuit 143 includes a temperature determination unit 1431 and an operation switching unit 1432 as circuits for controlling the temperature adjustment device 9.

  The temperature determination unit 1431 acquires data indicating the internal temperature from a temperature sensor (not shown) installed in the internal storage, and determines whether the internal temperature has reached the target temperature.

The operation switching unit 1432 switches the operation mode. The operation mode includes a normal mode and an initial mode in which the target temperature is set to a temperature at which the internal temperature exceeds the target temperature in the normal mode. Then, the operation switching unit 1432 sets the operation mode to the initial mode when the power is turned on or when a signal instructing the operation start is input from the latch circuit 142. On the other hand, after the operation in the initial mode, when the temperature determination unit 1431 determines that the internal temperature has reached the target temperature, the operation mode is switched to the normal mode.
Further, the power supply circuit 144 applies a drive voltage to the temperature adjustment device 9 according to the temperature determination result by the temperature determination unit 1431.

Next, an example of the control operation of the temperature adjustment device 9 by the control circuit 143 and the power supply circuit 144 will be described. Here, the case where the target temperature in the normal mode is 6 ° C. and the target temperature in the initial mode is 5 ° C. is shown.
In the control operation example of the temperature adjusting device 9 by the control circuit 143 and the power supply circuit 144, as shown in FIG. 21, first, when the power is turned on and when a signal instructing the start of operation is input from the latch circuit 142, The power supply circuit 144 drives the blower fan 11, and the operation switching unit 1432 switches the operation mode to the initial mode (step ST2101). That is, the target temperature is set to a temperature (5 ° C.) lower than the target temperature (6 ° C.) in the normal mode.

  Next, power supply circuit 144 applies a drive voltage to temperature adjustment device 9 in accordance with the temperature determination result by temperature determination unit 1431 of control circuit 143 (step ST2102).

  Moreover, the temperature determination part 1431 acquires the data which show the chamber temperature from the temperature sensor installed in the chamber, and determines whether the chamber temperature has reached the target temperature (5 ° C.) (step ST2103). If it is determined in step ST2103 that the internal temperature has not reached the target temperature (5 ° C.), the sequence returns to step ST2102, and steps ST2102 and 2103 are performed until the internal temperature reaches the target temperature (5 ° C.). Repeat the process.

On the other hand, when it is determined in step ST2103 that the internal temperature has reached the target temperature (5 ° C.), operation switching unit 1432 switches the operation mode to the normal mode (step ST2104). That is, the target temperature is set to 6 ° C.
Thereafter, the temperature adjusting device 9 is operated in the normal mode (step ST2105). That is, the temperature determination unit 1431 determines whether the internal temperature has reached a target temperature (for example, 6 ° C.), and the power supply circuit 144 supplies a drive voltage to the temperature adjustment device 9 according to the temperature determination result. Apply.

FIG. 22 is a diagram showing an example of the control operation of the temperature adjusting device 9 by the control circuit 143 and the power supply circuit 144 in the first embodiment of the present invention. In FIG. 22, the solid line indicates the output voltage characteristic in the normal mode, and the broken line indicates the output voltage characteristic in the initial mode.
Here, in the conventional electronic refrigerator, sufficient time is required to cool the inside temperature to the target temperature after the cooling is started. On the other hand, in the present invention, when cooling is started, first, it operates in the initial mode and operates at a temperature lower than the normal target temperature. Thereby, it is possible to quickly reach the target temperature in the normal mode, and also leads to energy saving.

In the above description, the case where the tactile switch 1313 is configured to be pressed for the same length of time when the operation start is instructed and when the operation stop is instructed is shown. On the other hand, the pressing time of the tactile switch 1313 may be changed depending on whether the operation start is instructed or the operation stop is instructed.
In this case, for example, as shown in FIG. 23, two time constant filters 141a and 141b are used to set the prescribed times to different values. At this time, a specified time T2 (for example, 1 to 3 seconds) for instructing operation stop is set longer than a specified time T1 (for example, 0.1 to 1 second) for instructing operation start.

  The latch circuit 142 outputs an output signal instructing the start of operation when receiving a signal from the time constant filter 141a and not receiving a signal from the time constant filter 141b, and both time constant filters 141a and 141b. When a signal from is received, an output signal for instructing operation stop is output.

Next, an operation example using the power supply substrate 14 of FIG. 24 will be described.
In the operation example using the power supply board 14 of FIG. 23, as shown in FIG. 24, first, the time constant filter 141a outputs a signal when the pressing time a of the tactile switch 1313 is longer than the specified time T1. The time constant filter 141b outputs a signal when the pressing time a of the tactile switch 1313 is longer than the specified time T2. That is, the operation is not started when the tactile switch 1313 is pressed for a specified time T1 or less, and the operation is not stopped when the tactile switch 1313 is pressed for a specified time T2 or less. Accordingly, even when the user etc. unintentionally touches the tactile switch 1313 when putting in or taking out the stored item, it is possible to avoid an erroneous operation, and when the staff etc. starts the operation, the operation can be quickly performed. It can be carried out.

Next, when the latch circuit 142 receives a signal from the time constant filter 141a and does not receive a signal from the time constant filter 141b, the latch circuit 142 outputs an output signal instructing start of operation, and both the time constant filters 141a and 141b. When a signal from is received, an output signal for instructing operation stop is output.
Next, the control circuit 143 controls the power supply circuit 144 in accordance with the insertion / extraction of the power supply and the signal from the latch circuit 142.
Next, the power supply circuit 144 applies a drive voltage to each part (the temperature adjusting device 9, the blower fan 11, and the LED 1311) according to the control from the control circuit 143. Note that the LED 1311 is turned on only when the front door 2 is open, and is turned off when the front door 2 is closed, even when the LED 1311 is turned on in conjunction with the temperature adjustment device 9 and the blower fan 11. .

In addition, in the above, it demonstrated using the electronic refrigerator which cools as an electronic storage. However, the present invention is not limited to this, and the configuration of the present invention can be similarly applied to an electronic warm storage that performs heat insulation.
Further, the dew tray 12, the lighting device 13, and the power supply substrate 14 are not limited to the electronic storage as described above, but are similarly applied to a storage that performs cold insulation or heat insulation using the temperature adjustment device 9 having a normal compressor. Can be applied to.

  As described above, according to the first embodiment, the casing member 7 which is a box-shaped member whose front surface is opened, the temperature adjusting device 9 attached to the casing member 7, and the light emitting element (LED 1311) are provided. And a lighting device 13 attached to the front of the interior surface of the housing member 7, and the lighting device 13 is a self-returning push switch that switches the operation of the temperature adjusting device 9 when the power is turned on. Since the switch (tactile switch 1313) is provided, the operation can be switched without inserting or removing the power source with an inexpensive configuration, and the operation can be started when the power source is turned on. Moreover, by mounting the push switch on the lighting device 13, the push switch can be made difficult to see, and an erroneous operation by a user other than the staff can be avoided.

  In addition, the lighting device 13 is mounted with a light emitting element and a push switch, and in a state where the lighting device 13 is attached to the housing member 7, the light emitting device faces the inner surface of the housing member 7. Since it has the wiring board 131 arranged diagonally, the inside of a store | warehouse | chamber can be illuminated deeply and it becomes easy to perform the thermal radiation of a light emitting element. Further, by mounting the push switch on the wiring substrate 131 to which the light emitting element is connected, a compact configuration with a single substrate can be achieved. Moreover, by mounting the push switch on the lighting device 13, it is possible to make the push switch difficult to see, and it is possible to avoid an erroneous operation by the user or the like without impairing the ease of operation by the staff or the like. Moreover, the designability can also be improved.

  In addition, the lighting device 13 has the push rod 133 that pushes the push switch by being pushed upward in a state where the lighting device 13 is attached to the housing member 7, and is thus arranged obliquely by the substrate holder 132. The push switch can be operated by vertical movement.

  Further, the push rod 133 has a spherical end portion that pushes the push switch, and is arranged at a position where the end portion touches the center position of the push switch when the push portion touches the push switch. By setting the contact point (force point) between the switch pressing portion 1332 and the push switch as the center position of the push switch, the stress at the time of contact acts toward the center of the tactile switch 1313 and the contact surface pressure is reduced. A feeling can be obtained stably.

  In addition, the illumination device 13 covers the light-emitting element, and transmits the light transmitted by the light-emitting element. The light transmission unit 1321 and the light transmission unit 1321 in the state where the illumination device 13 is attached to the housing member 7. Since it has the board | substrate storage container 134 which has the opening part 1341 exposed to the inner bottom face and the inner back face of the said housing member 7, the directivity is given to the light from LED1311, and it is effective to the inner back side in the warehouse. Can illuminate. In addition, since direct light does not enter the user's line of sight, the user will not feel dazzling even in the dark at midnight.

  Further, the heat transfer is made of an L-shaped metal plate and is provided with a convective gap with respect to the inner top surface and the inner rear surface of the housing member 7 and joined to the heat transfer surface of the temperature adjusting device 9. Since the lighting device 13 includes the plate 8 and protrudes from the top surface of the housing member 7 within the range up to the position of the surface of the heat transfer plate 8 disposed facing the top surface of the housing member 7, the storage device When viewed from the front, the end of the heat transfer plate 8 can be partially inconspicuous, and the appearance can be improved.

  Further, since the push switch switches the operation of the temperature adjusting device 9 and the light emitting element in conjunction with each other, the lighting device 13 can have a function of an operation lamp, and the staff can easily understand the operating state of the temperature adjusting device 9. can do.

  In addition, a time constant filter 141 that outputs a signal when the push switch is pressed for a specified time or longer, a latch circuit 142 that receives the signal output from the time constant filter 141 and switches the output signal, and the temperature adjustment device 9 And a control circuit 143 for controlling the power supply circuit 144 in response to a signal from the power supply / removal / latch circuit 142, so that the user or the like does not intend to use the push switch. It is possible to avoid erroneous operation even when touching the screen.

  One time constant filter 141 is provided, and the latch circuit 142 switches the output signal every time it receives a signal from the time constant filter 141, so that the user or the like touches the push switch unintentionally. In addition, erroneous operations can be avoided.

  Two time constant filters 141 are provided and set to different values for the specified time. The latch circuit 142 receives a signal from the time constant filter 141a having a short specified time and receives a signal from the time constant filter 141b having a long specified time. When no signal is received, an output signal instructing the start of operation is output, and when signals from both time constant filters 141a and 141b are received, an output signal instructing the operation stop is output. In addition, it is possible to suppress the erroneous operation and to quickly perform the operation when starting the operation.

  In addition, the control circuit 143 receives a temperature determination unit 1431 that determines whether the internal temperature of the casing member 7 has reached the target temperature, and a signal that instructs operation start when the power is turned on and from the latch circuit 142. If this is the case, the operation mode is set to the initial mode in which the internal temperature exceeds the target temperature in the normal mode (a low temperature in the case of cold insulation and a high temperature in the case of thermal insulation). After the operation in the mode, when the temperature determination unit 1431 determines that the internal temperature has reached the target temperature, the operation switching unit 1432 that sets the operation mode to the normal mode is provided, and the power supply circuit 144 includes the temperature determination unit According to the temperature determination result by 1431, a driving voltage is applied to the temperature adjusting device 9, so that by providing an initial mode, the target temperature in the normal mode can be quickly reached, It was, also leads to energy saving.

  Further, in the present invention, any constituent element of the embodiment can be modified or any constituent element of the embodiment can be omitted within the scope of the invention.

  DESCRIPTION OF SYMBOLS 1 Thermal insulation container, 2 Front door, 3 Hinge mechanism, 4 Rotation mechanism, 5 Inner member, 6 Outer member, 7 Housing member, 8 Heat transfer plate, 9 Temperature control device, 10 Back cover, 11 Blower fan, 12 Dew Dish, 13 Lighting device, 14 Power supply board, 15 Substrate storage box, 21 Gasket, 22 Magnet, 51 Insert, 52 Cover, 53 Gasket contact surface, 54 Housing groove, 55 Supporting part, 56 Mounting part, 57 Shelf, 58 Groove 61, outer sheet metal, 62 top plate, 63 back plate, 64 front leg, 65 rear leg, 66 inlet, 71 insertion hole, 72 drain tube, 73 heat insulating material, 81 screw hole, 82 support hole, 91 Peltier element, 92 Heat transfer block, 93 Heat sink, 94 Fixing screw, 95 Rubber plate, 101 Ventilation path, 102 Suction port, 103 Exhaust port, 121 Convex surface, 12 Air passage for communication, 123, 124 plate part, 125 guide part, 126 filter, 131 wiring board, 132 substrate holder, 133 push rod, 134 substrate storage container, 141 time constant filter, 142 latch circuit, 143 control circuit, 144 Power circuit, 200 Furniture, 201, 202 Vent, 641 Insertion hole, 642 Stepped portion, 651 Stepped portion, 1311 LED, 1312 Reed switch, 1313 Tactile switch, 1314 Wiring connection portion, 1321 Light transmission portion, 1322 Bar support portion, 1323 Through hole, 1331 supported portion, 1332 switch pressing portion, 1333 pressed portion, 1341 opening portion, 1342 through hole, 1343 recess, 1344 engaging portion, 1431 temperature determination portion, 1432 operation switching portion.

Claims (9)

A housing member that is a box-shaped member with an open front surface;
A temperature adjusting device attached to the housing member;
A storage unit including a light emitting element, and a lighting device attached to the front of the top surface of the casing member.
A heat transfer plate made of an L-shaped metal plate and provided with a convective gap with respect to the interior top surface and the interior back surface of the housing member and joined to the heat transfer surface of the temperature control device. As well as
The lighting device includes:
A self-returning type push switch that switches operation of the temperature control device in a state where the power is turned on;
In a state where the light emitting element and the push switch are mounted and the lighting device is attached to the housing member, the light emitting device is inclined at an angle of 20 to 40 ° so as to face the inner surface of the housing member. A wiring board arranged diagonally;
An end portion for pushing the push switch is formed in a spherical shape, and is provided with a push rod that pushes the push switch that is mounted on the wiring board and arranged obliquely by being pushed upward. Warehouse.   2. The storage according to claim 1, wherein the push bar is disposed at a position where the end portion formed in a spherical shape touches a center position of the push switch when the end portion touches the push switch. The lighting device includes:
A light transmissive part that covers the light emitting element and transmits light emitted by the light emitting element;
In the state where the lighting device is attached to the housing member, a substrate storage container having an opening that exposes the light transmitting portion to the bottom surface of the housing and the back surface of the housing. The storage according to claim 1 or claim 2.   The substrate storage container is provided with a through-hole for exposing a pressed portion of the push rod to the outside, and a recess is formed around the through-hole on the surface of the substrate storage container. The depth is configured to be deeper than the amount of protrusion of the pressed portion from the through hole so that the pressed portion of the push rod does not protrude from the surface of the substrate storage container. The storage according to claim 3. The storage according to any one of claims 1 to 4 , wherein the push switch switches the operation of the temperature adjustment device and the light emitting element in conjunction with each other. A time constant filter that outputs a signal when the push switch is pressed for longer than a specified time; and
A latch circuit that receives a signal output from the time constant filter and switches an output signal;
A power supply circuit for applying a driving voltage to the temperature adjusting device;
The storage according to any one of claims 1 to 5 , further comprising a control circuit that controls the power supply circuit in response to insertion / removal of the power supply and a signal from the latch circuit. . One time constant filter is provided,
The storage according to claim 6 , wherein the latch circuit switches the output signal every time a signal from the time constant filter is received. Two time constant filters are provided, and the specified time is set to a different value,
The latch circuit outputs the output signal instructing the start of operation when receiving a signal from the time constant filter having a short prescribed time and not receiving a signal from the time constant filter having a long prescribed time. 7. The storage according to claim 6 , wherein when the signals from both of the time constant filters are received, the output signal instructing to stop the operation is output. An electronic refrigerator comprising the storage according to any one of claims 1 to 8 , wherein the temperature adjusting device is used to keep cold using a Peltier element.

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