JP2005195294A - Refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problems wherein the cold air cannot be positively passed through an disinfection filter and a deodorizing catalyst due to resistance of a cooling device although the disinfection filter and the deodorizing catalyst are used in the case of performing disinfection and deodorization for a refrigerator. <P>SOLUTION: The disinfection filter 22 and the deodorizing catalyst 24 are set between the cooling device 16 and a fan 17, and a dedicated air duct 27 is provided to let wind flow to the disinfection filter 22 and the deodorizing catalyst 24, whereby the cold air can be passed through the disinfection filter 22 and the deodorizing catalyst 24 without influence of resistance in passing through the cooling device 16, and bacteria and odor component molecules adhering to the cooling device 16 can be removed with the disinfection filter 22 and the deodorizing catalyst 24 without flowing out to the refrigerating chamber 13 and the freezing chamber 15. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a sterilization filter / deodorization catalyst mounting structure for a refrigerator.

  In recent years, in refrigerators for storing food, there is an increasing interest in removing bacteria and odors present in the closed air in the refrigerator.

  Conventionally, as an antibacterial filter, a non-woven fabric made of synthetic fiber such as polyester is loaded with a silver compound, and the antibacterial property of silver ions is used to sterilize bacteria on the filter in the air passage. In addition, bypasses are formed on both sides of the installation portion so as not to cause insufficient cooling during clogging. In addition, it is sterilized and deodorized in combination with a catalyst-type deodorant. (For example, refer to Patent Document 1).

  FIG. 4 is a cross-sectional view showing a conventional structure for sterilizing filter / deodorizing catalyst mounting of a refrigerator described in Patent Document 1, and FIG. 5 is a plan view of a sterilizing filter / deodorizing catalyst mounting cassette of the refrigerator. 4 and 5, the conventional technology constitutes a refrigerating room 1, a freezing room 2, a cold air circulation fan 3, a cooler 4, and a space in which the airflow circulating in the warehouse is cooled by the cooler 4. It comprises a cooler chamber 5, a return air passage 6, and a cassette type antibacterial / deodorizing device 7.

The operation of the above configuration will be described. The cool air that has cooled the refrigerator compartment 1 enters the cooling chamber 5 through the return air passage 6 by the fan 3, passes through the cooler 4, is cooled, and is sent to the freezer compartment 2. An antibacterial / deodorizing device 7 is disposed at the suction port of the return air passage 6, and cool air that has cooled the refrigerator compartment passes through it. An antibacterial filter and a deodorizing catalyst are arranged in the antibacterial / deodorizing device 7 to sterilize and deodorize the cold air. Cold air return bypasses 8 are provided on both sides of the antibacterial / deodorizing device 7 so as to prevent the cold air from passing through the bypass and causing the problem of insufficient cooling of the refrigerator compartment 2 even if clogged.
JP-A-5-203336

  However, in order to use the sterilization / deodorization device effectively, it is necessary to pass cold air through the antibacterial filter and deodorization catalyst. There is a cooler between the fan and the fan, and the cooler becomes a large resistance, and there is a problem that more cold air cannot be passed through the antibacterial filter and the deodorizing catalyst.

  In addition, since the antibacterial filter and deodorizing catalyst are arranged in the return air passage, the problem is that bacteria and odorous component molecules adhering to the cooler are sucked in by the fan and flow out to the refrigerator compartment and freezer compartment. Have.

  This invention solves the said conventional subject, and it aims at providing the refrigerator which improved the deodorizing and disinfection performance.

  In order to solve the above-described conventional problems, a refrigerator according to the present invention includes a cooler, a fan for circulating cold air cooled by the cooler, and a partition plate that partitions the cooler, the fan, and the interior of the refrigerator. A special duct is provided in the partition plate between the cooler and the fan, and a sterilization filter is provided in the special duct.

  This makes it less susceptible to resistance when passing through the cooler, allowing the cool air to actively pass through the sterilization filter, and allowing the bacteria attached to the cooler to flow out into the refrigerator compartment and freezer compartment. It can be removed with a disinfecting filter.

  The refrigerator of the present invention is not easily affected by the resistance when passing through the cooler, and it is possible to actively pass the cold air through the sterilization filter, and the bacteria attached to the cooler can be stored in the refrigerator room and freezer room. It can be removed by a sterilization filter without flowing out, and the deodorization and sterilization performance can be improved.

  The invention described in claim 1 includes a cooler, a fan for circulating cold air cooled by the cooler, a partition plate that partitions the cooler, the fan, and the interior of the refrigerator, the cooler, and the fan. A special duct is provided in the partition plate between the two and the sterilization filter is provided in the special duct. The sterilization filter is not easily affected by resistance when passing through the cooler, and the cool air is allowed to pass through the sterilization filter. In addition, the bacteria attached to the cooler can be removed with a sterilization filter without flowing into the refrigerator compartment or freezer compartment.

  The invention according to claim 2 is the invention according to claim 1, in which a deodorizing catalyst is further arranged in a dedicated duct, and is not easily affected by resistance when passing through the cooler. It is possible to remove odorous component molecules adhering to the cooler with a deodorizing catalyst without flowing into the refrigerator compartment or freezer compartment. It can be carried out.

  The invention according to claim 3 is the invention according to claim 1 or 2, wherein the dedicated duct has a separate structure and is detachable from the partition plate. It is possible to improve the performance.

  Invention of Claim 4 is provided with the control means which drives a fan at the time of a defrost operation in the invention as described in any one of Claim 1 to 3, The microbe which generate | occur | produces a lot at the time of a defrost operation And odor component molecules can be removed positively, and the deodorization and sterilization performance of the entire refrigerator can be further enhanced.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a cross-sectional view of a refrigerator according to Embodiment 1 of the present invention.

  In FIG. 1, a refrigerator main body 9 is formed by filling a foam heat insulating material 12 between a resin inner box 10 and a steel box outer box 11 to form a heat insulating box body. The vegetable compartment 14 has a freezer compartment 15 at the bottom. On the back of the freezer compartment 15, a cooler 16, a fan 17 for circulating cool air above the cooler 16, and a heater 18 for defrosting the cooler 16 are provided below the cooler 16, The freezer compartment 15 is partitioned by a partition plate 19. Moreover, the vegetable compartment 14 and the refrigerator compartment 13 back are respectively provided with the vegetable compartment duct 20 and the refrigerator compartment duct 21, and the cool air cooled with the cooler 16 is led to each room. In addition, a control means (not shown) for operating the fan 17 is provided in a range where the thermal influence on the freezer compartment 15 is small during the defrosting operation in which the heater 18 for defrosting the cooler 16 is energized.

  FIG. 2 is a front view of the freezer compartment according to Embodiment 1 of the present invention.

  In FIG. 2, the sterilizing filter 22 and the deodorizing catalyst 23 are accommodated in a mounting case 24 integrally formed with the partition plate 19, and are installed between the cooler 16 and the fan 17. Further, a suction port 19a is provided below the cooler 16 of the partition plate 19, and a discharge port 19b is provided above.

  FIG. 3 is a perspective view of a case as a dedicated duct that houses the sterilizing filter and the deodorizing catalyst according to Embodiment 1 of the present invention.

  In FIG. 3, the mounting case 24 integrally formed with the partition plate 19 has a rectangular parallelepiped shape with the upper and lower surfaces open and forms a dedicated duct. Then, a sterilization filter holding unit 25 is provided on the periphery of the lower surface of the case 24 and a sterilization filter 22 and a deodorization catalyst 23 are arranged. Moreover, it has the nail | claw 26 which fixes the deodorizing catalyst 23 at the time of insertion from upper direction, and the nail | claw 26 has formed the groove | channel 26a on either side in order to give elasticity. The case 24 is deeper than the thickness of the sterilization filter 22 and the deodorization catalyst 23 inside, and forms a dedicated air passage 27 for the sterilization filter 22 and the deodorization catalyst 23.

  About the refrigerator comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  During operation of the refrigerator 9, the cooler 16 is cooled by flowing refrigerant. Then, the fan 17 rotates and the cool air cooled by the cooler 16 is sent to the freezer compartment 15 to cool the freezer compartment 15. Moreover, the vegetable compartment 14 is sent through the vegetable compartment duct 20 to cool the vegetable compartment 14. Further, it passes through the refrigerator compartment duct 21 and is sent to the refrigerator compartment 13 to cool the refrigerator compartment 13.

  The sterilization filter 22 and the deodorizing catalyst 23 attached to the attachment case 24 integrally formed with the partition plate 19 are installed between the cooler 16 and the fan 17 and are not easily affected by resistance when passing through the cooler 16. The cool air can be passed through the sterilization filter 22 and the deodorization catalyst 23, and the bacteria and odor component molecules adhering to the cooler 16 are transferred to the freezer compartment 15, the vegetable compartment 14, and the refrigerator compartment 13. It can be removed by the sterilizing filter 22 and the deodorizing catalyst 23 without flowing out. Further, since the case 24 is formed deeper than the thickness of the sterilization filter 22 and the deodorization catalyst 23, when the cold air flows, the case 24 becomes a dedicated air passage 27 for the sterilization filter 22 and the deodorization catalyst 23, and more actively. It becomes possible to allow cold air to pass through the sterilization filter 22 and the deodorization catalyst 23, so that sterilization and deodorization can be efficiently performed simultaneously.

  Further, when the refrigerator 9 is operated for a long time, frost adheres to the cooler 16 and the circulation of the cold air is inhibited. Therefore, the cooling operation is temporarily stopped and the defrost heater 18 attached to the lower part of the cooler 16 is stopped. A defrosting operation is performed to energize and melt the frost attached to the cooler 16.

  During this defrosting operation, the bacteria and odor component molecules that have been dissolved in the cooler 16 together with the frost are activated by being heated by the heater 18, but by the control means that operates the fan 17 during the defrosting operation, The sterilization filter 22 and the deodorization catalyst 23 can efficiently perform sterilization and deodorization.

  In the present embodiment, the case 24 is described as being integrally formed with the partition plate 19, but the case 24 as a dedicated duct may be a separate structure and detachable from the partition plate 19. In this case, since the case 24 can be removed without removing the partition plate 19, serviceability such as replacement of the sterilization filter 22 and the deodorization catalyst 23 is improved. In addition, since the process of incorporating the case 24 can be set relatively freely, the degree of freedom in the assembly process is increased, and the work efficiency during manufacturing is improved.

  As described above, the refrigerator according to the present invention can efficiently perform sterilization and deodorization in the sterilization filter and the deodorization catalyst, and can be applied to uses such as an air conditioner and a ventilation duct.

Refrigerator sectional view in Embodiment 1 of the present invention Front view of freezer compartment in Embodiment 1 of the present invention The perspective view of the attachment case of the bacteria elimination filter and deodorizing catalyst in Embodiment 1 of this invention Sectional drawing which shows the disinfection filter and the deodorizing catalyst attachment structure of the conventional refrigerator Top view of cassette for sterilizing filter and deodorizing catalyst

Explanation of symbols

9 Refrigerator 16 Cooler 17 Fan 19 Partition plate 22 Disinfection filter 23 Deodorization catalyst 27 Dedicated air passage

Claims (4)

A cooler, a fan for circulating the cool air cooled by the cooler, a partition plate for partitioning the cooler and the fan from the inside of the cabinet, and a duct dedicated to the partition plate between the cooler and the fan And a sterilization filter is provided in the dedicated duct. The refrigerator according to claim 1, further comprising a deodorizing catalyst disposed in the dedicated duct. The refrigerator according to claim 1 or 2, wherein the dedicated duct has a separate structure and is detachable from the partition plate. The refrigerator according to any one of claims 1 to 3, further comprising control means for operating the fan during the defrosting operation.

Images