Self-cleaning mechanism for refrigerator condenser
By designing a self-cleaning mechanism for the freezer condenser, a fan is reversed to blow away and collect dust. Combined with a torsion spring and connecting mechanism, automatic shielding is achieved, solving the problem of incomplete cleaning of traditional freezer condensers. This effectively collects dust and prevents backflow, improving the cleaning effect of the freezer.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNPENG WISDOM COLD CHAIN (SHANDONG) CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-04-24
AI Technical Summary
During the cleaning process of traditional freezer condensers, dust remains distributed around the freezer, causing it to be sucked into the freezer during use and affecting the cleaning effect of the condenser.
A self-cleaning mechanism for a freezer condenser was designed, including a fan, a shield, and a collection box. The fan reverses to blow away dust and collect it in the collection box. The baffle automatically blocks and seals the dust using a torsion spring and a connecting mechanism to prevent dust backflow. When the fan rotates forward, it prevents external dust from being sucked in.
It effectively prevents dust backflow, keeps the condenser clean, facilitates cleaning of the dust collection box, and improves the cleanliness and efficiency of the freezer.
Smart Images

Figure CN224162780U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of freezer condenser technology, specifically to a self-cleaning mechanism for freezer condensers. Background Technology
[0002] In the refrigeration system of a freezer, the condenser plays a crucial role. Its main function is to cool and condense the high-temperature, high-pressure refrigerant vapor discharged from the refrigeration compressor into a liquid, releasing heat.
[0003] To keep the condenser clean during use, traditional freezers use a fan that reverses for one minute immediately after startup to blow away dust from the condenser before resuming normal operation. However, since the dust is only blown off the condenser and remains distributed around the freezer, it will still be drawn into the freezer after a period of use. Utility Model Content
[0004] In view of the problems existing in the self-cleaning mechanism of the condenser of the freezer, this utility model is proposed.
[0005] Therefore, the purpose of this utility model is to provide a self-cleaning mechanism for a freezer condenser, which solves the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A self-cleaning mechanism for a freezer condenser includes a condenser body and a fan. The fan is fixedly mounted on the upper side of the condenser body. A shielding shell is fixedly mounted on the lower side of the condenser body. A collection box is abutted against the lower side of the shielding shell. Both the shielding shell and the collection box have openings on their adjacent sides. Both the shielding shell and the collection box have through grooves on their opposite sides. The shielding shell has a shielding mechanism inside to shield the through grooves. A filter plate is fixedly mounted in the middle of the collection box. A connecting mechanism is provided between the two ends of the shielding shell and the collection box. The shielding shell and the collection box are connected by the connecting mechanism.
[0008] Preferably, the shielding mechanism includes baffles and rotating rods. Two baffles are symmetrically arranged on the upper inner side of the shielding shell, and the upper surfaces of the two baffles abut against the corresponding through grooves. Two rotating rods are rotatably arranged on both sides of the upper inner end of the shielding shell. The opposite sides of the two baffles are fixedly sleeved with the corresponding rotating rods. A torsion spring is movably sleeved on the rod wall of the rotating rod, and the two ends of the torsion spring are fixedly connected to the corresponding rotating rod and the inner wall of the shielding shell, respectively.
[0009] Preferably, the connecting mechanism includes a first connecting block and a second connecting block. The two first connecting blocks are fixedly disposed on the outer walls of both sides of the collection box, and the two second connecting blocks are fixedly disposed on the outer walls of both sides of the shield shell. A through hole is opened on the upper surface of the second connecting block, and a threaded rod is movably inserted into the through hole. The lower end of the threaded rod is fixedly connected to the first connecting block, and a nut is threadedly sleeved on the upper end of the threaded rod. The nut abuts against the side of the second connecting block away from the first connecting block.
[0010] Preferably, a dustproof net is provided inside the upper side of the fan.
[0011] Preferably, a sealing gasket is provided on the upper surface of the baffle.
[0012] Preferably, a sealing ring is provided on the side of the shield and the collection box that are close to each other.
[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:
[0014] 1. In this utility model, when the fan blows air towards the condenser body, the air force will push the baffle open, which can blow dust into the collection box. When the fan blows air away from the condenser body, the torsion spring will cause the rotating rod to rotate and close the baffle, which will block the through groove of the shielding shell and effectively prevent dust backflow.
[0015] 2. In this utility model, by rotating the nut, the nut can be separated from the threaded rod, that is, the first connecting block and the second connecting block can be separated, and the collection box can be separated from the shield shell, making it convenient to empty the dust collected in the collection box. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0017] Figure 1 This is a schematic diagram of the structure of a self-cleaning mechanism for a freezer condenser proposed in this utility model;
[0018] Figure 2 for Figure 1 Schematic diagram of the internal structure of the central shielding shell;
[0019] Figure 3 for Figure 1 Schematic diagram of the internal structure of the collection box;
[0020] Figure 4 for Figure 2A magnified schematic diagram of part A in the middle section.
[0021] Explanation of reference numerals in the attached figures:
[0022] 1. Condenser body; 2. Fan; 3. Shielding shell; 4. Collection box; 5. First connecting block; 6. Second connecting block; 7. Threaded rod; 8. Nut; 9. Baffle; 10. Filter plate; 11. Torsion spring; 12. Rotating rod. Detailed Implementation
[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0024] This utility model discloses a self-cleaning mechanism for a freezer condenser.
[0025] Reference Figure 1-4 A self-cleaning mechanism for a freezer condenser includes a condenser body 1 and a fan 2. The fan 2 is fixedly installed on the upper side of the condenser body 1. A dustproof net is installed inside the upper side of the fan 2 to prevent dust from passing through the fan 2 and entering the freezer. A shielding shell 3 is fixedly installed on the lower side of the condenser body 1. A collection box 4 is abutted on the lower side of the shielding shell 3. A sealing ring is installed on the side of the shielding shell 3 and the collection box 4 that are close to each other to improve the sealing between the shielding shell 3 and the collection box 4. The side of the shielding shell 3 and the collection box 4 that are close to each other is open. A through groove is opened on the side of the shielding shell 3 and the collection box 4 that are opposite to each other. A shielding mechanism is installed inside the shielding shell 3 to shield the through groove. A filter plate 10 is fixedly installed in the middle of the collection box 4. A connecting mechanism is provided between the two ends of the shielding shell 3 and the collection box 4. The shielding shell 3 and the collection box 4 are connected by the connecting mechanism.
[0026] Reference Figure 1-4 The shielding mechanism includes baffles 9 and rotating rods 12. Two baffles 9 are symmetrically arranged on the upper inside of the shielding shell 3. The upper surfaces of the two baffles 9 abut against the corresponding through grooves. Two rotating rods 12 are rotatably arranged on both sides of the upper inside of the shielding shell 3. The opposite sides of the two baffles 9 are fixedly sleeved with the corresponding rotating rods 12. A torsion spring 11 is movably sleeved on the rod wall of the rotating rod 12. The two ends of the torsion spring 11 are fixedly connected to the corresponding rotating rod 12 and the inner wall of the shielding shell 3, respectively. A sealing gasket is provided on the upper surface of the baffle 9 to improve the sealing between the baffle 9 and the inner wall of the shielding shell 3.
[0027] Reference Figure 1-4The connecting mechanism includes a first connecting block 5 and a second connecting block 6. The two first connecting blocks 5 are fixedly installed on the outer walls of both sides of the collection box 4, and the two second connecting blocks 6 are fixedly installed on the outer walls of both sides of the shield shell 3. A through hole is opened on the upper surface of the second connecting block 6, and a threaded rod 7 is movably inserted into the through hole. The lower end of the threaded rod 7 is fixedly connected to the first connecting block 5, and a nut 8 is threadedly sleeved on the upper end of the threaded rod 7. The nut 8 abuts against the side of the second connecting block 6 away from the first connecting block 5.
[0028] In this utility model, when the freezer is started, the fan 2 first reverses and runs. The wind generated by the fan 2 blows the dust attached to the condenser body 1 downwards. The wind pushes open the baffle 9, and then the dust passes through the shield shell 3 and the opening on one side of the collection box 4 and enters the collection box 4. Since the filter plate 10 is fixedly installed in the middle of the collection box 4, the dust can be intercepted.
[0029] When the fan 2 finishes reversing and starts rotating normally in the forward direction, the airflow direction changes. At this time, under the action of the torsion spring 11, the rotating rod 12 drives the baffle 9 to reset. The baffle 9 covers the through slot again to prevent external dust from flowing out again. At the same time, the sealing gasket on the baffle 9 fits tightly with the inner wall of the shield shell 3 to further enhance the sealing. The dustproof net installed inside the upper side of the fan 2 can prevent external dust from being sucked into the freezer when the fan 2 rotates in the forward direction.
[0030] When a large amount of dust has accumulated in the collection box 4, the threaded rod 7 can be pulled out from the through hole of the second connecting block 6 by unscrewing the nut 8, thereby separating the collection box 4 from the shield shell 3, disassembling and cleaning the collection box 4, emptying the internal dust, and then reassembling the collection box 4 with the shield shell 3 through the connecting mechanism for continued use. The sealing ring ensures the sealing effect between the shield shell 3 and the collection box 4, preventing dust leakage.
[0031] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A self-cleaning mechanism for a freezer condenser, comprising a condenser body (1) and a fan (2), characterized in that, The fan (2) is fixedly installed on the upper side of the condenser body (1). A shielding shell (3) is fixedly installed on the lower side of the condenser body (1). A collection box (4) is abutted on the lower side of the shielding shell (3). The shielding shell (3) and the collection box (4) are both open on the side closest to each other. A through groove is opened on the opposite side of the shielding shell (3) and the collection box (4). A shielding mechanism is provided inside the shielding shell (3) to shield the through groove. A filter plate (10) is fixedly installed in the middle of the collection box (4). A connecting mechanism is provided between the two ends of the shielding shell (3) and the collection box (4). The shielding shell (3) and the collection box (4) are connected by the connecting mechanism.
2. The self-cleaning mechanism for the condenser of a freezer according to claim 1, characterized in that, The shielding mechanism includes baffles (9) and rotating rods (12). Two baffles (9) are symmetrically arranged on the upper inside of the shielding shell (3). The upper surfaces of the two baffles (9) abut against the corresponding through grooves. Two rotating rods (12) are rotatably arranged on both sides of the upper inside of the shielding shell (3). The opposite sides of the two baffles (9) are fixedly sleeved with the corresponding rotating rods (12). A torsion spring (11) is movably sleeved on the rod wall of the rotating rod (12). The two ends of the torsion spring (11) are fixedly connected to the corresponding rotating rod (12) and the inner wall of the shielding shell (3), respectively.
3. The self-cleaning mechanism for the condenser of a freezer according to claim 1, characterized in that, The connecting mechanism includes a first connecting block (5) and a second connecting block (6). The two first connecting blocks (5) are fixedly installed on the outer walls of both sides of the collection box (4), and the two second connecting blocks (6) are fixedly installed on the outer walls of both sides of the shield shell (3). A through hole is opened on the upper surface of the second connecting block (6), and a threaded rod (7) is movably inserted into the through hole. The lower end of the threaded rod (7) is fixedly connected to the first connecting block (5), and a nut (8) is threaded onto the upper end of the threaded rod (7). The nut (8) abuts against the side of the second connecting block (6) away from the first connecting block (5).
4. The self-cleaning mechanism for the condenser of a freezer according to claim 1, characterized in that, The upper interior of the fan (2) is equipped with a dustproof net.
5. The self-cleaning mechanism for the condenser of a freezer according to claim 2, characterized in that, A sealing gasket is provided on the upper surface of the baffle (9).
6. The self-cleaning mechanism for the condenser of a freezer according to claim 1, characterized in that, Both the shielding shell (3) and the collection box (4) are provided with sealing rings on the side closest to each other.