JPH048986Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to a moisture-proof cabinet in which the structure of a moisture-absorbing dry unit installed inside the main body of the humidity-proof cabinet is improved.

[Technical background of the invention]

2. Description of the Related Art In general, a structure shown in FIG. 4 is conventionally known as a moisture-proof warehouse that maintains a storage chamber in which devices such as cameras and interchangeable lenses are kept at a low temperature. In FIG. 4, reference numeral 1 denotes a moisture-proof chamber body, 2 a storage chamber formed inside the moisture-proof chamber main body 1, and 3 an opening/closing door disposed at the front opening of this storage chamber 2.
This moisture-proof cabinet body 1 is equipped with a dry unit 4 that absorbs moisture within the storage chamber 2.

As shown in FIGS. 5 and 6, this dry unit 4 includes a unit case 5, a moisture absorbing member 6 disposed inside this unit case 5, and
The heater (heating member) 7 that heats and regenerates the moisture, the inside of the unit case 5 and the inside of the moisture-proof refrigerator main body 1 (inside the storage chamber 2)
an internal refrigerator shutter 9 that opens and closes an internal compartment opening 8 that communicates with
It is formed by an external shutter 11 and a shutter operation mechanism section 12 for opening and closing operations. Furthermore, the moisture absorbing member 6 is formed by a drying box 13 in which a large number of ventilation holes are formed and a desiccant material 14 housed in this drying box 13, and a heater 7 is attached to this drying box 13.

Further, the shutter operation mechanism section 12 includes a motor 15 having a built-in timer mechanism, a cam 16 attached to a rotating shaft 15a of this motor 15, and this cam 1.
It is formed by a link mechanism 17 that opens and closes the internal shutter 9 and the external shutter 11 in conjunction with the rotational movement of the internal refrigerator 6. As the timer mechanism operates, the motor 15 is driven periodically, and the external shutter 11 is placed in the closed position and the internal shutter 9 is placed in the open position as shown in FIG. 5 via the cam 16 and the link mechanism 17. The internal shutter 9 and the external shutter 11 are moved from the first state in which they are held, respectively, to the second state in which the external shutter 11 is held in the open position and the internal shutter 9 is held in the closed position, as shown in FIG. are opened and closed periodically. Therefore, with the operation of the heater 7 stopped, the external shutter 11 is set to the closed position, and the internal shutter 9 is moved to the closed position.
are held in the open position (first state)
By doing so, the moisture in the storage chamber 2 is absorbed by the desiccant material 14 of the moisture absorbing member 6. Furthermore, by operating the heater 7 with the external shutter 11 held in the open position and the internal shutter 9 held in the closed position (second state), the moisture absorbing member 6 is heated by the heater 7. The moisture in the desiccant material 14 is evaporated and the vapor is discharged to the outside of the refrigerator to regenerate the desiccant material 14 to its original state, that is, to a state capable of absorbing moisture.

[Problems with background technology]

In the case of the conventional structure, the motor 15, cam 16 and link mechanism 17 of the shutter operation mechanism section 12 are arranged together with the moisture absorbing member 6 and the heater 7 in a common installation space inside the unit case 5 of the dry unit 4. Because I had it set up,
The heater 7 is operated while the external shutter 11 is held in the open position and the internal shutter 9 is held in the closed position (second state), and the moisture absorbing member 6 is heated by the heater 7 and the inside of the desiccant material 14 is heated. When the moisture in the desiccant material 14 is evaporated and the desiccant material 14 is regenerated to its original state, that is, in a state in which it can absorb moisture, the steam evaporated from the desiccant material 14 is used to cause electrical parts such as the motor 15 inside the unit case 5, etc. , there was a risk that it would adhere to mechanical parts such as the cam 16 and the link mechanism 17.
Therefore, there was a problem that the durability of each component of the shutter operating mechanism section 12, such as the motor 15, cam 16, and link mechanism 17, deteriorated.

Furthermore, since the moisture absorbing member 6 is disposed inside the unit case 5, even when the internal shutter 9 is opened, the airflow due to natural convection of the air in the storage chamber 2 of the moisture-proof refrigerator main body 1 is transmitted to the moisture absorbing member 6. There was a problem that made it difficult to contact directly. Therefore, the ability of the moisture absorbing member 6 to absorb moisture in the storage chamber 2 of the moisture-proof storage body 1 tends to be relatively small, so there is a risk that the time required to absorb moisture in the storage chamber 2 may become longer.

[Purpose of invention]

This invention improves the durability of each component of the shutter operating mechanism by preventing vapor evaporated from the moisture absorbing member from adhering to each component of the shutter operating mechanism inside the unit case when the moisture absorbing member is heated and regenerated. It is an object of the present invention to provide a moisture-proof warehouse that can increase the moisture absorption capacity of the moisture-proof chamber main body.

[Summary of the idea]

This invention includes a unit case having an inside opening that communicates with the inside of the moisture-proof refrigerator body and an outside opening that communicates with the outside of the storage, an inside shutter that opens and closes the inside opening, and an outside opening that communicates with the outside of the storage. The dry unit is composed of an external shutter for opening and closing, a shutter operation mechanism for opening and closing the internal and external shutters, a moisture absorbing member disposed inside the unit case, and a heating member for heating and regenerating the moisture absorbing member. In the moisture-proof warehouse equipped with
providing a partition wall that partitions the inside of the unit case into a machine room for storing constituent members of the shutter operating mechanism and a moisture-absorbing member storage chamber, and providing the moisture-absorbing member with an exposed portion protruding toward the inner side of the moisture-proof cabinet body; The interior shutter is provided with a housing portion for accommodating the exposed portion of the moisture absorbing member when the interior opening of the refrigerator is closed.

[Example of idea]

An embodiment of this invention will be described below with reference to FIGS. 1 to 3. FIG. 1 shows the external appearance of the moisture-proof storage, and 21 is the main body of the moisture-proof storage. An opening/closing door 22 and an operation panel 23 are disposed on the front side of the moisture-proof chamber main body 21 and on the sides of the opening/closing door 22, respectively.

Further, inside the moisture-proof storage body 21, a storage chamber 24 is formed to store items such as cameras and interchangeable lenses. Furthermore, a dry unit 25 for absorbing moisture in the storage chamber 24 is attached to the ceiling of the storage chamber 24 in the moisture-proof storage main body 21.

As shown in FIGS. 2 and 3, this dry unit 25 includes a unit case 26, a moisture absorbing member 27 disposed inside this unit case 26, and a posistar heater (heating member) 28 that heats and regenerates this moisture absorbing member 27. , an internal shutter 30 that opens and closes the inside opening 29 that communicates between the inside of the unit case 26 and the inside of the moisture-proof cabinet body 21 (inside the storage chamber 24 ); It is formed by an external shutter 32 and a shutter operation mechanism 33 that open and close an external opening 31 that communicates with the outside. in this case,
A recessed portion 34 is formed in the upper part of the unit case 26. By disposing this unit case 26 on the ceiling of the storage chamber 24 of the moisture-proof chamber main body 21, an exhaust chamber 35 is formed between the inner wall surface of the storage chamber 24 and the concave portion 34 of the unit case 26. There is. In addition, the storage chamber 24 of the moisture-proof chamber main body 21
An opening 36 is formed in the ceiling plate 24a at a portion facing the exhaust chamber 35, and this opening 36 is closed by an exhaust cover 37. Furthermore, this exhaust cover 37 is formed with a large number of punching holes 38 for ventilation.

In addition, the opening 29 inside the refrigerator is connected to the unit case 26.
The outer side opening 31 is formed on the upper surface of the concave portion 34 of the unit case 26. Further, the moisture absorbing member 27 and the shutter operating mechanism section 33 are arranged inside the unit case 26. This moisture absorbing member 27 includes a drying box 39 formed with a large number of ventilation holes.
A heater 28 is attached to the lower surface of the drying box 39.

Further, the internal shutter 30 is disposed on the lower surface of the unit case 26 (inside the storage chamber 24), and the external shutter 32 is disposed on the upper surface of the concave portion 34 of the unit case 26 (inside the exhaust chamber 35). The shutter operation mechanism section 33 also includes a motor 41 having a built-in timer mechanism, and a rotation shaft 4 of this motor 41.
It is formed by a cam 42 attached to 1a and a link mechanism 43 that opens and closes the internal shutter 30 and external shutter 32 in conjunction with the rotation of the cam 42. As the timer mechanism operates, the motor 41 is driven periodically, and the external shutter 32 is placed in the closed position and the internal shutter 30 is placed in the open position as shown in FIG. 2 via the cam 42 and link mechanism 43. From the first state in which they are held, the external shutter 32 is moved to the open position and the internal shutter 30 is moved to the open position as shown in FIG.
The internal shutter 30 and the external shutter 32 are periodically opened and closed, respectively, until they reach a second state in which they are held in their closed positions. Therefore, by holding the external shutter 32 in the closed position and the internal shutter 30 in the open position (first state) with the operation of the heater 28 stopped, the moisture in the storage chamber 24 can be absorbed. The material is absorbed by the desiccant material 40 of the member 27. Furthermore, by operating the heater 28 with the external shutter 32 held in the open position and the internal shutter 30 held in the closed position (second state), the moisture absorbing member 27 is heated by the heater 28. The moisture in the desiccant material 40 is evaporated and the vapor is discharged to the outside of the refrigerator to regenerate the desiccant material 40 to its original state, that is, to a state capable of absorbing moisture.

On the other hand, the unit case 2 of the dry unit 25
A partition wall 44 is provided inside the unit case 6, and the partition wall 44 partitions the inside of the unit case 26 into left and right sides, forming a machine chamber 45 and a moisture absorbing member storage chamber 46, respectively. The mechanical parts such as the cam 42 and the link mechanism 43 are housed in the machine room 45 along with electrical parts such as the motor 41 of the shutter operating mechanism section 33. Further, the moisture absorbing member 27 is stored in the moisture absorbing member storage chamber 46. In this case, the moisture absorbing member storage chamber 46 of the unit case 26
The bottom plate 46a is formed above the position of the bottom plate 45a of the machine room 45. Furthermore, the moisture absorbing member 27 has an exposed portion 27 that protrudes below the bottom plate 45a of the machine room 45 (toward the inside of the housing chamber 24).
A is provided. Further, the internal shutter 30 is provided with a housing portion 30a that accommodates the exposed portion 27a of the moisture absorbing member 27 when the internal opening 29 is closed.

Therefore, in the case of the above structure, a partition wall 44 is provided inside the unit case 26 of the dry unit 25, and the partition wall 44 partitions the inside of the unit case 26 into left and right sides, and the machine room 45 and moisture absorbing member storage are separated. Each chamber 46 is formed, and the motor 41, cam 42, link mechanism 43, and other constituent members of the shutter operating mechanism section 33 are housed in the machine chamber 45, and the moisture absorbing member 27 is housed in the moisture absorbing member storage chamber 46. Therefore, the heater 28 is operated while the external shutter 32 is held in the open position and the internal shutter 30 is held in the closed position (second state), and the moisture absorbing member 27 is heated by the heater 28. When the moisture in the desiccant material 40 is evaporated and the desiccant material 40 is regenerated to its original state, that is, a state capable of absorbing moisture, the steam evaporated from the desiccant material 40 is prevented from flowing into the machine room 45. It can be prevented. Therefore, it is possible to reliably prevent the vapor evaporated from the drying material 40 from adhering to electrical parts such as the motor 41 inside the unit case 26 and mechanical parts such as the cam 42 and the link mechanism 43. It is possible to improve the durability of each component of the operating mechanism section 33, such as the motor 41, cam 42, link mechanism 43, etc.

Furthermore, the dry unit 25 is connected to the moisture-proof chamber main body 21.
The heater 2 is installed on the ceiling of the storage chamber 24, and the outside opening 31 is formed on the upper surface of the concave portion 34 of the unit case 26, and the heater 2 is installed on the lower surface of the drying box 39.
8 is installed, the vapor evaporated from the drying material 40 is transferred to the moisture absorbing member storage chamber 4 of the unit case 26.
6 through the exhaust chamber 35 and the large number of punched holes 38 of the exhaust cover 37, and can be discharged to the outside of the refrigerator. Therefore, drying material 4
Since the vapor evaporated from the drying unit 25 can be smoothly discharged from the moisture absorbing member storage chamber 46 of the unit case 26 to the outside of the refrigerator, the dry unit 25 can be placed in the front, back, or side of the storage chamber 24 of the moisture-proof refrigerator main body 21. It is possible to prevent the steam evaporated from the desiccant material 40 from trapping inside the unit case 26 as in the case where the desiccant material 40 is disposed, thereby increasing the heating regeneration effect of the desiccant material 40 and improving the heating regeneration process of the desiccant material 40. It is possible to speed up the process.

In addition, the bottom plate 45a of the machine room 45 is attached to the moisture absorbing member 27.
An exposed portion 27a is provided that protrudes downward (towards the inside of the storage chamber 24).
Since the accommodating part 30a for accommodating the exposed part 27a of 7 is provided, the exposed part 27a of the moisture absorbing member 27 can be exposed in the accommodating chamber 24 of the moisture-proof cabinet body 21 when the internal shutter 30 is opened.

Therefore, when the internal shutter 30 is opened, the airflow caused by the natural convection of the air in the storage chamber 24 of the moisture-proof chamber main body 21 can be brought into direct contact with the exposed portion 27a of the moisture absorbing member 27.
By using the exposed portion 27a of 7, natural convection of the air inside the moisture-proof chamber body 21 can be utilized to efficiently absorb moisture inside the storage chamber 24. Therefore, the moisture absorption capacity of the storage chamber 24 of the moisture-proof chamber main body 21 by the moisture absorption member 27 can be increased compared to the conventional case, so that the time required for moisture absorption inside the storage chamber 24 can be shortened.

It should be noted that this invention is not limited to the above embodiments, and it goes without saying that various modifications can be made without departing from the gist of this invention.

[Effect of idea]

According to this invention, the inside of the unit case is divided by a partition wall into a machine room that stores the components of the shutter operating mechanism and a moisture absorbing member storage chamber, so that when the moisture absorbing member is heated and regenerated, evaporation from the moisture absorbing member can be prevented. It is possible to prevent steam from adhering to each component of the shutter operating mechanism within the unit case, thereby improving the durability of each component of the shutter operating mechanism.

Furthermore, the moisture-absorbing member is provided with an exposed portion that protrudes to the inside of the moisture-proof cabinet main body, and the internal shutter is provided with a housing portion that accommodates the exposed portion of the moisture-absorbing member when the internal opening of the refrigerator is closed. It can increase the moisture absorption capacity inside the refrigerator and shorten the moisture absorption work time.

[Brief explanation of drawings]

Figures 1 to 3 show an embodiment of this invention, with Figure 1 being a perspective view showing the exterior of the moisture-proof storage, and Figure 2 being a longitudinal section of the main parts showing the state of moisture absorption in the storage room. 3 is a vertical sectional view of the main part showing the state of heating and regeneration of the moisture absorbing member, FIGS. 4 to 6 show the conventional example, and FIG. 4 is a perspective view showing the appearance of the moisture-proof storage.
FIG. 5 is a longitudinal sectional view of the main part showing the state of moisture absorption in the storage chamber, and FIG. 6 is a longitudinal sectional view of the main part showing the state of heating and regeneration of the moisture absorbing member. 21... Moisture-proof chamber main body, 24... Storage chamber (inside the chamber),
25...Dry unit, 26...Unit case, 27...Moisture absorbing member, 28...Posistar heater (heating member), 29...Inner side opening, 30...
...Inner shutter, 31...Outside opening, 32
... Shutter outside the warehouse, 33 ... Shutter operation mechanism section, 44 ... Partition wall, 45 ... Machine room, 46
...Moisture-absorbing material storage room.

Claims (1)

[Scope of utility model registration request] A unit case having an inside opening that communicates with the inside of the moisture-proof refrigerator body and an outside opening that communicates with the outside of the storage, an internal shutter that opens and closes the inside opening, and an inside shutter that opens and closes the outside opening. A moisture-proof unit equipped with a drying unit consisting of an external shutter, a shutter operation mechanism that opens and closes the internal and external shutters, a moisture absorbing member disposed inside the unit case, and a heating member that heats and regenerates the moisture absorbing member. In the storage, a partition wall is provided to partition the inside of the unit case into a machine room for storing constituent members of the shutter operating mechanism section and a moisture-absorbing member storage chamber, and an exposed portion of the moisture-absorbing member protrudes toward the inside of the moisture-proof storage body. A moisture-proof warehouse, characterized in that the interior shutter is provided with a housing portion for accommodating the exposed portion of the moisture absorbing member when the interior opening of the refrigerator is closed.