Dustproof ventilating cover

Abstract

The utility model relates to a refrigerator technical field especially, it relates to a dustproof ventilating hood, sets up on the refrigerator, the back or bottom of refrigerator is provided with compressor storehouse, the cooperation of heat dissipation fan is provided with at compressor storehouse, the air outlet end of heat dissipation fan is correspondingly provided with the ventilating opening of the surface of refrigerator, and it includes: ventilating plate frame, a plurality of equal size and vertical arrangement's mounting port are arranged on the ventilating plate frame, fin, with equal number and corresponding rotation setting in the upside of mounting port, heat dissipation fan in compressor storehouse is inclined from below to top air outlet and always faces the inside windward surface of fin, and installs assembly. The utility model under the action of wind force makes fin and ventilating plate frame have certain angle of intersection to radiate heat when heat dissipation fan operates, when heat dissipation fan does not operate, utilizes the gravity of fin and closes to prevent dust, to realize the consideration of radiating heat and dust prevention.

Description

Technical Field

[0001] This utility model relates to the field of refrigerator technology, and in particular to a dustproof ventilation cover. Background Technology

[0002] The statements herein provide only background information in relation to this invention and do not necessarily constitute prior art.

[0003] Currently, the compressor compartment of household refrigerators is usually located at the back or bottom. To ensure heat dissipation of heat-generating components such as the compressor and high-frequency solenoid valve, ventilation openings are needed on the compartment. Most existing ventilation openings use simple louvered or mesh-like ventilation panels.

[0004] While these traditional ventilation panels are simple in structure and inexpensive, their dust-proofing effect is limited. Especially when the cooling fan stops operating, the openings in the ventilation panels remain open, allowing dust, lint, and other impurities from the environment to enter the compressor compartment without hindrance. Over time, this accumulated dust covers the compressor, radiator, and circuit components, leading to the following problems: 1. Decreased heat dissipation efficiency: Dust accumulation affects heat dissipation, causing the compressor's operating temperature to rise, energy consumption to increase, and long-term operation to shorten its service life; 2. Reduced operational reliability: Dust may enter the fan bearings or circuit connectors, causing the fan to jam, make abnormal noises, or experience circuit failures; 3. Hygiene issues: Dust accumulation can easily breed bacteria and produce odors. Utility Model Content

[0005] The purpose of this utility model is to provide a dustproof ventilation cover to address the aforementioned shortcomings.

[0006] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a dustproof ventilation cover, installed on a refrigerator, wherein a compressor compartment is provided at the back or bottom of the refrigerator, a cooling fan is provided at the compressor compartment for cooperative use, and the air outlet of the cooling fan is provided with a ventilation opening opened on the surface of the refrigerator, comprising: A ventilation panel frame is detachably installed at the ventilation opening, and the ventilation panel frame is provided with multiple installation openings of equal size and arranged vertically. The fins are arranged on the upper side of the mounting ports in the same number and rotating accordingly. The cooling fan in the compressor compartment tilts the air out from bottom to top and always faces the inner windward side of the fins. When the cooling fan is running, the fins and the ventilation plate frame are made to form a certain angle for heat dissipation under the action of the wind. When the cooling fan is not running, the fins close by their own weight to prevent dust. An installation / removal assembly is provided on the ventilation panel frame for removing or installing the ventilation panel frame at the ventilation opening location.

[0007] Furthermore, the installation and removal assembly includes six installation and removal units located at the four corners and the top and bottom of the ventilation plate frame and at the midpoint. Each installation and removal unit includes a fixing ring correspondingly disposed at the outer end of the ventilation plate frame, a connecting post passing through the ventilation plate frame and rotatably disposed on the fixing ring, and two limiting plates symmetrically disposed on the portion of the connecting post located on the inner side of the ventilation plate frame.

[0008] Furthermore, the refrigerator is provided with a connecting groove at the installation position of the installation and removal unit. One side of the connecting groove is provided with a slot for inserting a limiting plate on one side of the connecting column. The other side of the connecting groove is provided with a limiting groove for the connecting column to rotate 90° and restrict its movement.

[0009] Furthermore, a support side groove is provided on one side of the vent and on the refrigerator; The support side groove is used for the horizontal insertion of the ventilation panel frame.

[0010] Furthermore, rotating posts are symmetrically arranged at both ends of the top of the fin, and rotating seats fixed on the ventilation plate frame are rotatably mounted on the outside of the rotating posts. The rotating seats are located at both ends on the upper side of the mounting port.

[0011] Furthermore, the rotating column is smoothly connected within the rotating base.

[0012] The beneficial effects of this utility model are reflected in: When the cooling fan is running, the fins and the ventilation plate frame are at a certain angle for heat dissipation under the action of wind. When the cooling fan is not running, the fins close due to their own weight to prevent dust, thus achieving both heat dissipation and dust prevention, reducing the possibility of dust entering the compressor compartment. Furthermore, the ventilation plate frame can be easily installed and disassembled through the installation and disassembly components, facilitating cleaning and maintenance. Attached Figure Description

[0013] Figure 1 This is a perspective view of the overall application of an embodiment of the present invention on a refrigerator. Figure 2 This is a perspective view of the overall structure of an embodiment of the present utility model. Figure 3 for Figure 2 Enlarged view at point A in the middle; Figure 4 This is a perspective view of the overall structure of an embodiment of the present utility model. Figure 5 This is a structural view of a connecting groove on a refrigerator, representing an embodiment of the present invention.

[0014] In the picture: 1. Refrigerator; 2. Ventilation panel frame; 3. Mounting port; 31. Rotary seat; 4. Fin; 41. Rotary column; 5. Installation and removal unit; 51. Fixing ring; 52. Connecting column; 53. Limiting plate; 6. Connecting groove; 61. Slot; 62. Limiting groove; 7. Support side groove. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0016] Please see Figure 1-5 This utility model discloses a dustproof ventilation cover, installed on a refrigerator 1. A compressor compartment is located at the back or bottom of the refrigerator 1, and a cooling fan is installed in the compressor compartment for coordinated use. The air outlet of the cooling fan has a corresponding ventilation opening on the surface of the refrigerator 1. The cover includes: The ventilation panel frame 2 is detachably installed at the ventilation opening, and the ventilation panel frame 2 is provided with a plurality of installation openings 3 of equal size and arranged vertically; Fins 4 are arranged in equal number and rotatably on the upper side of the mounting port 3. The cooling fan in the compressor compartment tilts the air out from bottom to top and is always facing the inner windward side of the fins 4. When the cooling fan is running, the fins 4 and the ventilation plate frame 2 are made to form a certain angle for heat dissipation under the action of wind force. When the cooling fan is not running, the fins 4 close by their own weight to prevent dust. An installation / removal assembly is provided on the ventilation panel frame 2 for removing or installing the ventilation panel frame 2 at the ventilation opening location.

[0017] In specific implementation, a matching cooling fan is installed in the compressor compartment reserved in the back or bottom of the refrigerator 1, and a vent is provided on the surface of the refrigerator 1 corresponding to the air outlet of the cooling fan. At this time, the ventilation plate frame 2 is fixed at the vent by the installation and removal components, and multiple vertically arranged mounting holes 3 are opened on the ventilation plate frame 2. When the cooling fan is started, since the air outlet direction of the cooling fan is inclined from bottom to top in the compressor compartment and always faces the inner windward surface of the fins 4 installed on the upper side of the mounting hole 3, the fins 4 will be made to have a certain angle with the ventilation plate frame 2 under the action of wind force for heat dissipation. The air outlet area can be adjusted by adjusting the air force of the cooling fan. When the cooling fan is stopped and turned off, the fins 4 will close and seal by their own weight to prevent dust, thus achieving both heat dissipation and dust prevention.

[0018] In one embodiment, the installation and removal assembly includes six installation and removal units 5 located at the four corners and the top and bottom of the ventilation plate frame 2, respectively, and at the midpoint. Each installation and removal unit 5 includes a fixing ring 51 correspondingly disposed on the outer end of the ventilation plate frame 2, and a connecting post 52 passing through the ventilation plate frame 2 and rotatably disposed on the fixing ring 51. Two limiting plates 53 are symmetrically disposed on the inner side of the connecting post 52. This design allows for the installation of a corresponding number of fixing rings 51 using screws at the four corners and the top and bottom of the ventilation plate frame 2, respectively, and the rotatable installation of the connecting post 52 with a slot cut at the center of the end face of each fixing ring 51. One end of the connecting post 52 extends to the two limiting plates 53 symmetrically welded to the circumference of the inner side of the ventilation plate frame 2.

[0019] In one embodiment, a connecting groove 6 is provided on the refrigerator 1 at the installation position corresponding to the installation and removal unit 5. A slot 61 is provided on one side of the connecting groove 6 to accommodate the insertion of a limiting plate 53 on one side of the connecting post 52. A limiting groove 62 is provided on the other side of the connecting groove 6 to restrict the movement of the connecting post 52 by 90°. This design, through the connecting grooves 6 opened at the corresponding assembly positions of each connecting post 52 on the refrigerator 1, and the slots 61 machined by slotting on one side of the connecting grooves 6, allows the connecting posts 52 to be quickly positioned on the surface of the refrigerator 1 by fitting and inserting the slots 61 into the limiting plates 53 welded to one side of the connecting posts 52. Then, the ventilation plate frame 2 is moved, causing the connecting posts 52 installed on the ventilation plate frame 2 to move linearly along the length of the connecting grooves 6, so that the connecting posts 52 move to the other side of the connecting grooves 6. The connecting posts 52 are then rotated so that the two limiting plates 53 symmetrically welded on the connecting posts 52 rotate to the limiting slots 62 on the other side of the connecting grooves 6 for effective limiting. This achieves convenient installation of the ventilation plate frame 2 on the refrigerator 1. Disassembly can be performed in reverse order of the above installation sequence.

[0020] It should be noted that the surfaces of the connecting column 52 and the limiting plate 53 combined structure, both external and internal, of the limiting groove 62 are bonded together with anti-slip rubber pads to increase damping.

[0021] In one embodiment, a support side groove 7 is provided on one side of the vent and on the refrigerator 1; The support side groove 7 is used for the horizontal insertion of the ventilation plate frame 2. With this design, by installing the support side groove 7 on the side of the vent on the refrigerator 1, the ventilation plate frame 2 can be moved horizontally and inserted into the support side groove 7, and the outer end of the ventilation plate frame 2 can be limited along the width direction of the refrigerator 1, further stabilizing the connection of the ventilation plate frame 2 to the refrigerator 1.

[0022] In one embodiment, rotating posts 41 are symmetrically arranged at both ends of the top of the fin 4. Rotary seats 31, fixed to the ventilation plate frame 2, are rotatably mounted around the rotating posts 41. The rotating seats 31 are located at both ends above the mounting opening 3. This design allows the rotating posts 41, screwed onto the top of the fin 4, and the rotating seats 31, screwed onto the ventilation plate frame 2 at corresponding positions of the rotating posts 41, to move within the rotating seats 31, enabling the fin 4 located at the mounting opening 3 to be opened or closed according to the rotation of the cooling fan.

[0023] In one embodiment, the rotating column 41 is smoothly connected within the rotating base 31. This design, with the rotating column 41 smoothly connected within the rotating base 31, reduces the damping effect and makes it easier for the fins 4 to automatically open for ventilation and heat dissipation under wind power, and automatically close for sealing and dust prevention by the weight of the fins 4 when the cooling fan stops.

[0024] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0025] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0026] Additionally, "multiple" refers to two or more.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dustproof ventilation cover, installed on a refrigerator (1), wherein a compressor compartment is provided on the back or bottom of the refrigerator (1), a cooling fan is provided in the compressor compartment for use therewith, and the air outlet of the cooling fan is provided with a ventilation opening opened on the surface of the refrigerator (1), characterized in that, include: The ventilation panel frame (2) is detachably installed at the ventilation opening, and the ventilation panel frame (2) is provided with a plurality of installation openings (3) of equal size and arranged vertically. The fins (4) are arranged on the upper side of the mounting port (3) in the same number and rotate accordingly. The cooling fan in the compressor compartment tilts the air out from bottom to top and is always facing the inner windward side of the fins (4). When the cooling fan is running, the fins (4) and the ventilation plate frame (2) are at a certain angle for heat dissipation under the action of the wind. When the cooling fan is not running, the fins (4) close by their own weight to prevent dust. Installation and removal components are provided on the ventilation panel frame (2) for removing or installing the ventilation panel frame (2) at the ventilation opening location.

2. The dustproof ventilation cover according to claim 1, characterized in that: The installation and removal assembly includes six installation and removal units (5) located at the four corners and the top and bottom of the ventilation plate frame (2) and at the midpoint. Each installation and removal unit (5) includes a fixing ring (51) correspondingly set at the outer end of the ventilation plate frame (2) and a connecting post (52) passing through the ventilation plate frame (2) and rotatably set on the fixing ring (51). Two limiting plates (53) are symmetrically arranged on the part of the connecting post (52) located on the inner side of the ventilation plate frame (2).

3. The dustproof ventilation cover according to claim 2, characterized in that: The refrigerator (1) is provided with a connecting groove (6) at the installation position of the installation and removal unit (5). A slot (61) is provided on one side of the connecting groove (6) to accommodate the insertion of the limiting plate (53) on one side of the connecting column (52). A limiting groove (62) is provided on the other side of the connecting groove (6) to restrict the movement of the connecting column (52) by 90°.

4. The dustproof ventilation cover according to claim 1, characterized in that: A support side groove (7) is provided on one side of the vent and on the refrigerator (1). The support side groove (7) is used for the horizontal insertion of the ventilation plate frame (2).

5. The dustproof ventilation cover according to claim 1, characterized in that: The top two ends of the fin (4) are symmetrically provided with rotating columns (41), and the rotating columns (41) are covered with rotating seats (31) fixed on the ventilation plate frame (2). The rotating seats (31) are located at both ends on the upper side of the mounting port (3).

6. The dustproof ventilation cover according to claim 5, characterized in that: The rotating column (41) is smoothly connected within the rotating base (31).

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