Drawer capable of preventing odor tainting

Abstract

The utility model discloses an odor tainting prevention drawer, which relates to the technical field of refrigeration equipment and comprises a drawer body, a front cover plate is arranged on the front side of the drawer body, an upper cover plate is arranged on the upper side of the drawer body, and a rear plate is arranged on the upper portion of the rear side of the drawer body. An opening is formed in the upper cover plate, an odor tainting prevention device is embedded in the opening, and the odor tainting prevention device comprises a supporting body and an air filtering membrane attached to the supporting body; an air inlet is formed in the position, located on the odor tainting prevention device, of the rear plate, an inlet of the odor tainting prevention device is communicated with the air inlet, and a gas channel penetrating through the drawer body is formed in the odor tainting prevention device. The refrigerator can prevent the refrigerating chamber and the freezing chamber of the refrigerator from being tainted by odor, and is easy to mount and dismount.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration equipment, in particular to a drawer that prevents odor contamination. Background Art

[0002] Refrigerators are the most commonly used household appliances in daily life and are an important link in the journey of fresh food from its place of production to the dining table. Therefore, people pay more and more attention to the fresh-keeping function of refrigerators. For a single-system air-cooled refrigerator, it has only one evaporator, and the air from the refrigerator and freezer will eventually pass through this evaporator. When different types of food are placed in the same refrigerator, they will release different odors. If these odors are not effectively isolated, they will mix with each other and affect each other's taste. The odorous gas in the refrigerator will not only cause sensory discomfort to people and deteriorate the original taste of the food, but will also pollute the indoor air when the refrigerator is turned on.

[0003] Single-system air-cooled refrigerators have only one circulation system for the refrigerator and freezer compartments due to their refrigeration characteristics. Through the action of the fan, the air flow will circulate between the refrigerator and freezer compartments, which may cause odor problems between the freezer and refrigerator compartments.

[0004] At present, in order to prevent the problem of odor contamination, one of the methods is to use a dual-system refrigerator. The dual-system refrigerator is equipped with an independent evaporator for refrigeration and freezing, and uses two refrigeration systems with independent circulation, which can better store food and prevent odor contamination. However, compared with a single-system refrigerator, a dual-system refrigerator has a larger volume, a higher price, and is more difficult to maintain. Utility Model Content

[0005] The utility model aims to provide an anti-smell drawer, which can prevent the odor from being transferred between the refrigerating chamber and the freezing chamber of the refrigerator, and is easy to install and disassemble.

[0006] The utility model comprises a drawer body, wherein a front cover is arranged on the front side of the drawer body, an upper cover is arranged on the upper side of the drawer body, and a rear plate is arranged on the upper part of the rear side of the drawer body; an opening is arranged on the upper cover, an anti-odor-cross-contamination device is embedded in the opening, and the anti-odor-cross-contamination device comprises a support body and an air filter membrane attached to the support body; an air inlet is arranged on the rear plate at the anti-odor-cross-contamination device, the entrance of the anti-odor-cross-contamination device is communicated with the air inlet, and a gas passage which runs through the inside and outside of the drawer body is formed inside the anti-odor-cross-contamination device.

[0007] Preferably, the support body is composed of a plurality of rows of crisscrossed corrugated boards, the side of the support body is connected to the air inlet, and a gas passage that passes through the support body from top to bottom is formed inside the support body.

[0008] Preferably, the air filter membrane is evenly attached to the board surface of the corrugated board, and a plurality of small holes for adsorbing pollutants are provided on the air filter membrane.

[0009] Preferably, the size and shape of the air inlet are the same as the outer side of the anti-odor transfer device.

[0010] Preferably, the rear plate is detachably connected to the rear end of the upper cover plate.

[0011] Preferably, a claw is provided on the rear edge of the upper cover plate, and a slot for the claw to be inserted is provided at a position on the front side of the rear plate corresponding to the claw.

[0012] Preferably, there are a plurality of claws, which are arranged at intervals on the rear edge of the upper cover plate.

[0013] Preferably, a reinforcing rib is provided on the upper portion of the claw.

[0014] Preferably, the front portion of the jaw is provided with a wedge-shaped surface.

[0015] Preferably, the claw and the upper cover plate are integrally formed by injection molding.

[0016] In summary, the utility model has the following beneficial effects:

[0017] 1. An anti-odor device is installed on the upper cover of the drawer body. An air filter membrane is attached to the support of the anti-odor device. The air filter membrane is provided with a number of small holes for adsorbing pollutants. When cold air blows from the refrigeration air outlet to the drawer, the air passes through the anti-odor device and then enters the refrigeration drawer. Since the density of cold air is greater than that of hot air, in order to balance the air pressure in the drawer, the hot air in the drawer will rise from the gap between the corrugated plates and enter the refrigeration chamber, thus forming a gas circulation channel to purify more air and prevent odor between the refrigeration chamber and the freezer chamber;

[0018] 2. The support of the anti-odor device is composed of several rows of crisscrossed corrugated boards, and a gas channel is formed inside the support, which makes the contact area between the air filter membrane and the air larger and the filtering effect better;

[0019] 3. The anti-odor device needs to be replaced regularly to achieve the best filtering effect. The back panel is made into a detachable structure from the drawer body. The back panel also serves to set the air inlet and fix the rear end of the anti-odor device. The back panel can be detachably connected to the rear end of the drawer cover to facilitate the installation and removal of the anti-odor device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of a drawer that prevents odor from spreading according to the utility model;

[0021] Figure 2 It is a schematic diagram of the structure of the anti-flavor device;

[0022] Figure 3 It is a schematic diagram of the structure of corrugated board and air filter membrane;

[0023] Figure 4 This is a structural diagram of the drawer body without the back plate;

[0024] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0025] Figure 6 for Figure 4 Enlarged partial cross-sectional view. DETAILED DESCRIPTION

[0026] The utility model will be further described below in conjunction with the accompanying drawings.

[0027] The positions mentioned in this specification are based on the positions of the anti-odor drawer of the utility model during normal operation, and do not limit the positions during storage and transportation. They only represent relative position relationships, not absolute position relationships.

[0028] like Figures 1 to 6 As shown together, an anti-odor drawer includes a drawer body 1, a front cover plate 2 is provided on the front side of the drawer body 1, an upper cover plate 3 is provided on the upper side of the drawer body 1, and a rear plate 4 is provided on the upper rear side of the drawer body 1. The drawer body 1, the front cover plate 2, the upper cover plate 3 and the rear plate 4 together form a closed drawer structure; an opening is provided on the upper cover plate 3, and an anti-odor device 5 is embedded in the opening, and the anti-odor device 5 includes a support body and an air filter membrane 51 attached to the support body; an air inlet 6 is opened on the rear plate 4 at the anti-odor device 5, and the size and shape of the air inlet 6 are the same as the outer side of the anti-odor device 5 to ensure the best gas contact surface and ventilation effect, the inlet of the anti-odor device 5 is communicated with the air inlet 6, and the interior of the anti-odor device 5 is formed with a gas channel that runs through the inside and outside of the drawer body 1.

[0029] Furthermore, the support body is composed of a plurality of rows of criss-crossed corrugated plates 52, the side of the support body is connected to the air inlet 6, and a gas passage running from top to bottom is formed inside the support body; during the refrigeration process of the refrigerator, the freezing fan runs, and air flows through the evaporator, and a part of the air is blown into the refrigeration air duct through the damper, and one of the refrigeration air outlets is connected to the drawer. The air passes through the air inlet 6, is filtered by the anti-odor device 5, and then enters the refrigeration drawer. Since the density of cold air is greater than that of hot air, in order to balance the air pressure in the drawer, the hot air in the drawer will rise from the gaps between the corrugated plates 52 and enter the refrigeration chamber, thus forming a gas circulation channel to purify more air.

[0030] The air filter membrane 51 is evenly attached to the surface of the corrugated board 52. The air filter membrane 51 is provided with a number of small holes for absorbing pollutants. The air filter membrane 51 is made of polytetrafluoroethylene, and after expansion, calendering, and biaxial stretching, it forms a microporous film with small pore size, uniform distribution, and large porosity. While maintaining air circulation, it can filter all dust particles including bacteria to achieve the purpose of purification and ventilation. It has excellent selective moisture permeability and mechanical strength. Its density is much larger than that of ordinary paper, and the gas mobility is very low, which can ensure that there is no mixed air. In addition, there are openings on the membrane. The surface layer of the composite membrane is generally a hydrophilic material, which is conducive to the passage of water molecules, and screens and isolates harmful gas molecules in the air to avoid cross-mixing of incoming and outgoing air during heat transfer, thereby preventing odor.

[0031] Furthermore, the anti-odor device 5 needs to be replaced regularly to achieve the best filtering effect. In order to facilitate the installation and disassembly of the anti-odor device 5, the rear plate 4 is detachably connected to the rear end of the upper cover plate 3. A claw 7 is provided on the rear edge of the upper cover plate 3. A slot 8 for the claw 7 to be inserted is provided at the front side of the rear plate 4 and the corresponding position of the claw 7. There are several claws 7, which are arranged at intervals on the rear edge of the upper cover plate 3. A reinforcing rib 9 is provided on the upper part of the claw 7 to strengthen the claw 7. A wedge-shaped surface is provided on the front part of the claw 7 to guide the claw 7. The claw 7 and the upper cover plate 3 are integrally formed by injection molding.

[0032] When the anti-odor device 5 needs to be replaced, the rear plate 4 is pulled out from the rear end of the upper cover plate 3, the anti-odor device 5 is taken out, and after the new anti-odor device 5 is installed, the rear plate 4 is clamped onto the claws 7 at the rear end of the upper cover plate 3.

[0033] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A drawer that prevents odor from spreading, characterized by: The invention comprises a drawer body (1), wherein a front cover plate (2) is provided on the front side of the drawer body (1), an upper cover plate (3) is provided on the upper side of the drawer body (1), and a rear plate (4) is provided on the upper part of the rear side of the drawer body (1); an opening is provided on the upper cover plate (3), an anti-odor cross-contamination device (5) is embedded in the opening, and the anti-odor cross-contamination device (5) comprises a support body and an air filter membrane (51) attached to the support body; an air inlet (6) is provided on the rear plate (4) at the anti-odor cross-contamination device (5), an inlet of the anti-odor cross-contamination device (5) is communicated with the air inlet (6), and a gas passage that runs through the inside and outside of the drawer body (1) is formed inside the anti-odor cross-contamination device (5).

2. The odor-proof drawer according to claim 1, characterized in that: The support body is composed of a plurality of rows of crisscrossed corrugated plates (52); the side of the support body is connected to the air inlet (6); and a gas passage that passes through the support body from top to bottom is formed inside the support body.

3. The odor-proof drawer according to claim 2, characterized in that: The air filter membrane (51) is evenly attached to the surface of the corrugated board (52), and a plurality of small holes for adsorbing pollutants are provided on the air filter membrane (51).

4. The anti-odor drawer according to claim 1, characterized in that: The size and shape of the air inlet (6) are the same as the outer side surface of the anti-odor contamination device (5).

5. The anti-odor drawer according to claim 1, characterized in that: The rear plate (4) is detachably connected to the rear end of the upper cover plate (3).

6. The odor-proof drawer according to claim 5, characterized in that: A claw (7) is provided on the rear edge of the upper cover plate (3), and a slot (8) for the claw (7) to be inserted is provided at a position corresponding to the front side of the rear plate (4) and the claw (7).

7. The odor-proof drawer according to claim 6, characterized in that: A plurality of the clamping claws (7) are arranged at intervals on the rear edge of the upper cover plate (3).

8. The odor-proof drawer according to claim 6, characterized in that: A reinforcing rib (9) is provided on the upper portion of the clamping claw (7).

9. The odor-proof drawer according to claim 6, characterized in that: The front part of the clamping claw (7) is provided with a wedge-shaped surface.

10. The odor-proof drawer according to claim 6, characterized in that: The clamping claw (7) and the upper cover plate (3) are integrally formed by injection molding.

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