JPH07229676A - Electronic cold insulation box - Google Patents

Abstract

PURPOSE:To eliminate formation of a useless utilization space in a cold insulation box without cooling loss due to rails and to prevent a positional deviation of a frame from a door of the box upon switching of a drawer by switching the door in a drawer type. CONSTITUTION:A guide rail space 16 is provided at an external lower side of a boxlike heat insulation wall 12. A stationary side rail member 15a and a movable side rail member 15 movably supported to the member 15a are longitudinally disposed in the space 16, and a heat insulation door 11 is coupled to a front end of the member 15 to be supported.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic cold storage using a thermoelectric conversion element.

[0002]

2. Description of the Related Art As a conventional technology of an electronic cold storage, there is known one disclosed in Japanese Patent Laid-Open No. 140578/1990. This cools the inside of the cool box by the cooling action of the thermoelectric conversion element having a cooling part that exhibits a cooling action by energization and a heat dissipation part that exhibits a heat dissipation action, and cools the heat dissipation surface side of the thermoelectric conversion device by a cooling fan. The door of the cool box was opened and closed by a hinge.

This cools the inside of the cool box by the cooling action of a thermoelectric conversion element having a cooling section that performs a cooling action by energization and a heat radiation section that performs a heat radiation action, and

[0004]

However, in the above-mentioned conventional technique, the openable and closable door is opened and closed by the hinge. For example, when the hinge is arranged outside the cabinet frame, since the hinge part projects, when it is arranged adjacent to another cabinet, a gap is required in the hinge part, which makes the appearance unsatisfactory. Moreover, it becomes impossible to arrange the cabinets in close contact with each other. Further, when the hinge is arranged inside the cabinet frame, since the hinge is arranged within a limited space, the inside of the cool box is narrowed by the protrusion of the hinge.

It is also conceivable that the rail is provided inside the heat insulating space to be of a pull-out type, but if the rail is installed in a limited space, the rail has an invalid use space, and this invalid use space is provided. There is a waste of cooling up to. Also, since the rails are installed only for the depth of the cool box, the pull stroke is short,
Usability becomes poor. Also, in order to install the rails in the cool box, it is necessary to increase the thickness of the heat insulating wall and the material strength in order to support the weight strength.
It may happen that the metal support is penetrated from the outer wall material, and the cooling loss increases. For this reason, when the rail member is provided inside the heat insulating space and the rail member is provided below the heat insulating space, the fulcrum that supports the drawer portion is on the lower side, and the positional displacement above the fulcrum is large. Becomes
When the door is closed, the door and the frame are misaligned and the appearance becomes poor.

According to the present invention, the door of the cool box is opened and closed so that the rail portion does not cause cooling loss.
It is an object to prevent an invalid use space from being created in the cool box and prevent the frame body and the door from being displaced when opening and closing the drawer.

[0007]

[Means for Solving the Problems] In order to solve the above-mentioned problems, the measures taken in claim 1 are a box-shaped heat insulating wall having an opening at the front, a heat insulating door for opening and closing the opening, and a box-shaped heat insulating member. In an electronic cool box having a heat insulating space formed by a wall and a heat insulating door, and a thermoelectric conversion element in which a cooling portion is in heat transfer contact with the heat insulating space and a heat dissipation portion is in heat transfer contact with the atmosphere,
A guide rail space is provided outside the box-shaped heat insulating wall, and a fixed side rail member and a movable side rail member movably supported by the fixed side rail member are arranged in the front-rear direction to move the guide rail space. That is, the heat insulating door is connected to and supported by the front end of the side rail member.

The means taken in claim 2 is that the storage case which is put into and taken out from the heat insulating space is connected to and supported by the heat insulating door.

The means taken in claim 3 has a protrusion formed on the heat insulating door and a fitting groove formed on the box-shaped heat insulating wall, and the heat insulating door fits the fitting groove and the protrusion during storage. It is that they have been combined.

According to a fourth aspect of the present invention, the heat insulating door comprises a door portion and a storage case which is fixed to the door portion by sandwiching a heat insulating material between the door portion and the door portion. It has a formed recess and an end surface of the storage case that fits into the recess, and the recess and the end surface are fixed by adhesive bonding.

[0011]

According to the means of the first aspect, since there is no rail in the cool box, cooling loss due to the rail does not occur and an invalid use space cannot be created in the cool box. Further, since there is no invalid use space in the cool box, it can be used for a narrow cabinet width. Since there is no protruding portion outside the cabinet, it can be placed in close contact with another cabinet. Further, since the effective drawing stroke of the drawer can be taken sufficiently, it becomes easy to use.

According to the second aspect of the present invention, by making the storage portion of the cool box to be of a pull-out type, only the pull-out portion can move into and out of the heat insulation space, so that cosmetics and the like can be easily confirmed. You can

According to the third aspect of the present invention, by fitting the fitting groove and the projection in the closed state, it is possible to prevent the heat insulating door and the box-like heat insulating wall from being displaced, and to store the heat insulating door. The appearance can be maintained.

According to the means described in claim 4, it is not necessary to fix the heat insulating material and the storage case fixed to the door portion of the heat insulating door with the screw, thereby further preventing the cooling loss. .

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment according to the present invention will be described with reference to the drawings.

As shown in FIGS. 1 and 2, the cool box 1
0 is a box-shaped heat insulating wall 12a having an opening at the front, a heat insulating door 11 for opening and closing the opening, a box-shaped heat insulating wall 12a and a heat insulating door 1
1 and the heat insulation space 28, and the heat insulation space 28
The thermoelectric conversion element 20 is in thermal contact with the cooling section, and is in thermal contact with the atmosphere and the heat radiating section, and the storage case 17 fixed to the heat insulating door 11. A duct 30 extending downward from above the cool box 10 is formed. The lower end of the duct 30 is opened as an intake port on the lower front surface of the cool box 10, and the upper end of the duct 30 is opened on the upper front surface of the cool box 10 as an exhaust port. The guide rail section 16 is formed between the lower portion of the heat insulating space 28 and the duct 30.

The heat insulating door 11 comprises a heat insulating wall 12, a movable side rail member 15, and a storage case 17,
It is a drawer. The heat insulating wall 12 is fixed to the heat insulating door 11 with screws 25. Movable side rail member 1
5 is a heat insulating door 11 so as not to be located in the heat insulating space 28.
Is fixed to the lower end of the with screws 26. Further, the movable side rail member 15 is provided with a roller 27 as a rotating member. A fixed rail member 15a, which supports the movable rail member 15 so as to be movable in the front-rear direction, is in sliding contact with the fixed rail member 15a, and is disposed in the guide rail space 16. or,
A storage case 17 is provided inside the heat insulating wall 12, and the storage case 17 is fixed to the heat insulating wall 12 by screws 25.
It is fixed to. An accessory case 17a is provided on the upper part of the storage case 17 as shown in FIG.

A resin plate material 24, which is a lining material, is disposed on the upper and lower inner surfaces of the box-shaped heat insulating wall 12a. On the vertical plane,
A heat absorbing plate 23 is arranged. A packing 18 is provided on the end of the heat insulating wall 12 and the box-shaped heat insulating wall 12a.

The box-shaped heat insulating wall 12a has a thermoelectric conversion element 20.
A heat transfer block 19 that contacts the cooling surface is disposed, and the heat transfer block 19 and the heat absorbing plate 23 are in heat transfer contact with each other. A heat insulating material 22 is arranged around the thermoelectric conversion element 20. Further, the heat radiation surface of the thermoelectric conversion element 20 is in contact with a heat radiation fin 21 which is a heat radiation portion, and the heat radiation fin 21 is arranged in the duct 30.
Further, a cooling fan 29 is arranged at the lower end of the duct 30 and blows cooling air to the radiating fins 21. A wooden frame 14 is arranged around the heat insulating wall 12 and the box-shaped heat insulating wall 12a.

Next, the operation of the first embodiment will be described.

The cool box 1 is operated by an operation switch (not shown).
When the switch for supporting the start of cooling of 0 is turned on, the thermoelectric conversion element 20 is energized and at the same time the motor for driving the cooling fan 29 is energized. When the thermoelectric conversion element 20 is energized, cooling is started on the cooling surface, whereby the heat absorbing plate 23 is cooled via the heat transfer block 19 which is in heat transfer contact with the cooling surface. Since the heat absorbing plate 23 further exchanges heat with the air in the heat insulating space 28, the air in the heat insulating space 28 is cooled. At this time, the air contacting the vertical surface of the heat absorbing plate 23 and the upper portion is cooled and moves downward. In this way, the entire cool box 10 is cooled.

Further, the heat generated by the heat radiation surface exchanges heat with the heat radiation fin 21, and the heat radiation fin 21 is connected to the duct 30.
Heat exchange with the air inside. In the duct 30, the cooling fan 29 is rotated by the driving of the motor, air is taken in through the intake port, and is discharged through the duct 30 through the exhaust port. Therefore, the heat radiation fins 21 efficiently exchange heat with this air flow.

As described above, by the thermoelectric conversion element 20,
Since the inside of the cool box 10 is cooled, cosmetics that are preferably stored at low temperature, such as lotion and emulsion, can be placed in this space.

As shown in FIG. 1, the drawer portion is in a state of being housed in the heat insulating space 28. In this state, for example, insert a magnet into the packing 18,
The magnet and the thin iron plate provided on the front surface of the resin plate member 24 attract each other to make airtight contact with each other to form a sealed state. Next, when the heat insulating door 11 of the drawer of the cool box 10 is pulled, the movable side rail member 15 moves on the fixed side rail member 15a. Then, the state becomes as shown in FIG. By pulling out the storage case 17 and the accessory case 17a, it is easy to confirm cosmetics and the like. Since the movable side rail member 15 moves in the guide rail space 16 outside the cool box 10, cooling loss due to the rail member 13 does not occur.

Next, as a second embodiment, a cool box 10 having a protrusion 31 provided on the heat insulating wall 12 and a fitting groove 32 provided on the box-like heat insulating wall 12a will be described.

As shown in FIG. 5, the heat insulating wall 12 is provided with a projection 31, and the box-shaped heat insulating wall 12a is provided with a fitting groove 32. FIG. 6 shows the heat insulating door 11 in the closed state. FIG. 7 shows an enlarged view of the protrusion 31 and the fitting groove 32. In the above-described embodiment, since the rail member 13 that supports the drawer is located below, the upper part of the drawer apart from the fulcrum is misaligned, and when the drawer is closed, it looks good. It gets worse. In another embodiment, in order to prevent displacement, a protrusion 31 is provided above the heat insulating wall 12 and a fitting groove 32 is formed in the box-shaped heat insulating wall 12a so that the heat insulating door 11 fits with the protrusion 31 during storage. The mating groove 32 is fitted. The rest of the configuration is the same as that of the above-mentioned embodiment, so the explanation is omitted.

Next, the operation of the second embodiment will be described.

As shown in FIG. 5, when the heat insulating door 11 is opened, it can be pulled out by the same operation as usual, and the object stored in the storage case 17 can be taken out. Next, in the closed state, the protrusion 31 is moved to the end of the box-shaped heat insulating wall 12a by a normal operation, and when the protrusion 31 reaches the fitting groove 32, the protrusion 31 is fitted into the fitting groove 32. To a closed state (shown in FIG. 6). This allows the insulation door 1 to be stored.
1 and the heat insulating space 28 can be prevented from being displaced, and the appearance can be maintained.

The operation of the cool box 10 other than this is the same as that of the above-mentioned embodiment, and therefore its explanation is omitted.

Next, a third embodiment will be described.

As shown in FIGS. 8 and 9, the insulating door 11
The handle 40 is provided on one end surface 11a of the door portion of
A storage case 41 is fixed to the other end surface 11b by sandwiching the heat insulating material 12. Also, the other end surface 11 of the heat insulating door 11
The rail member 15 is fixed to the lower end of b by a screw 26, and the roller 27 is rotatably supported at the end. A packing 18 is provided in the storage case 41 so as to face the heat insulating material 12, and a permanent magnet is inserted into the packing 18, so that an attraction action is generated between the thin iron plate and the permanent magnet. Further, the storage case 41 is integrally formed with a storage space 41a for storing the stored items.

A method of fixing the door portion of the heat insulating door 11 and the storage case 41 will be described. The other end surface 11 of the heat insulation door 11
A concave portion 42 is formed in the b at a position where it abuts against the end surface 41b of the storage case 41.
The recess 42 has a width slightly larger than b. The recess 42 and the end surface 41b are adhesively bonded to each other using an adhesive. Further, since the adhesive is inserted into the gap between the recess 42 and the end surface 41b, the gap disappears and the heat insulating door 11 and the storage case 41 are fixed in a close contact state.

The operation of the cool box 10 is the same as that of the above-described embodiment, and therefore its explanation is omitted.

The heat insulating material 12 and the storage case 41 are attached to the heat insulating door 1.
By fixing it to the first door portion by adhesive bonding, it is possible to prevent cooling loss due to screws and further improve the cooling performance.

[0035]

According to the first aspect of the present invention, since there is no rail in the cool box, cooling loss due to the rail does not occur, and an invalid space cannot be used in the cool box. Further, since there is no invalid use space in the cool box, it can be used for narrow cabinets. Since there is no protruding portion outside the cabinet, it can be placed in close contact with another cabinet. Further, since the effective drawing stroke of the drawer can be taken sufficiently, it becomes easy to use.

According to the second aspect of the present invention, by making the storage portion of the cool box to be of a drawer type, only the drawer portion can move into and out of the heat insulation space, so that cosmetics and the like can be easily confirmed. You can

According to the third aspect of the present invention, by fitting the fitting groove and the projection in the closed state, it is possible to prevent the heat insulating door and the box-like heat insulating wall from being displaced, and to store the heat insulating door. The appearance can be maintained.

According to the invention as set forth in claim 4, it is not necessary to fix the heat insulating material and the storage case fixed to the door portion of the heat insulating door with the screw, thereby further preventing cooling loss. .

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a state in which a drawer part of a bathroom vanity with a refrigerator is stored according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of the bathroom vanity table with a cool box according to the first embodiment of the present invention in a state where the drawer portion is open.

FIG. 3 is a perspective view of a drawer portion shown in FIG.

FIG. 4 is a sectional view taken along line XX of FIG.

FIG. 5 is a view showing an opened state of a heat insulating door of a cool box according to a second embodiment.

FIG. 6 is a view showing a closed state of a heat insulating door of a cool box according to a second embodiment.

FIG. 7 is a sectional view taken along line YY of FIG.

FIG. 8 is a sectional view of a lead portion according to a third embodiment.

FIG. 9 is a sectional view taken along line ZZ in FIG.

[Explanation of symbols]

 11 ... Insulation door 13 ... Guide rail space 15 ... Movable side rail member 15a ... Fixed side rail member 20 ... Thermoelectric conversion element 21 ... Radiating fin 23 ... Endothermic plate 31. ..Protrusion 32 ... Mating groove 41a ... End surface 42 ... Concave groove

Claims (4)

[Claims] 1. A box-shaped heat insulating wall having a front surface as an opening, a heat insulating door for opening and closing the opening, a heat insulating space formed by the box heat insulating wall and the heat insulating door, and cooling in the heat insulating space. In an electronic cold storage having a thermoelectric conversion element in which the portion is in heat transfer contact and the heat dissipation section is in heat contact with the atmosphere, a guide rail space is provided on the outer lower side of the box-shaped heat insulating wall, A fixed side rail member and a movable side rail member movably supported by the fixed side rail member are arranged in the guide rail space in the front-rear direction, and the heat insulating door is connected to the front end of the movable side rail member. An electronic cold storage that is supported. 2. The electronic cool box according to claim 1, wherein a storage case that is put in and taken out of the heat insulating space is connected to and supported by the heat insulating door. 3. A protrusion formed on the heat insulating door, and a fitting groove formed on the box-shaped heat insulating wall, wherein the heat insulating door fits the fitting groove and the protrusion during storage. The electronic cool box according to claim 1, wherein 4. The heat insulating door includes a door portion and a storage case which is fixed to the door portion by sandwiching a heat insulating material between the door portion and the heat insulating door. The heat insulating door is formed on the door portion. The electronic refrigerator according to claim 1, further comprising a recess and an end surface of the storage case that fits into the recess, the recess and the end surface being fixed by an adhesive bond.