A finned evaporator for a domestic refrigerator

By designing a fixed unit, the problems of noise and poor cooling effect caused by loose finned evaporators are solved, achieving stable operation and convenient installation and disassembly, and improving the convenience of maintenance and repair.

CN224316467UActive Publication Date: 2026-06-02HEFEI SHENGBANG ELECTRICAL APPLIANCE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEFEI SHENGBANG ELECTRICAL APPLIANCE CO LTD
Filing Date
2025-06-18
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing household refrigerator finned evaporator fixing components and transmission pipes are prone to loosening, affecting cooling performance and generating noise. The installation and disassembly process is cumbersome and not conducive to maintenance and repair.

Method used

The design adopts a fixed unit, including fasteners, clamps, and fixing bolts. The fins and transmission unit are firmly fixed by the bayonet structure of the first and second clamps and the cooperation of the fixing bolts, ensuring stable operation. The installation process is simplified by connecting plates and positioning plates.

Benefits of technology

It achieves stable operation of the finned evaporator, reduces noise, ensures cooling effect, and simplifies the installation and disassembly process, making it easier for later maintenance and repair.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a finned evaporator for household refrigerators, relating to the field of refrigerator refrigeration equipment technology. The finned evaporator for household refrigerators includes a transmission unit, fins, and a fixing unit. The fins and fixing unit are sleeved on the outside of the transmission unit, with the fins located inside the fixing unit. The fixing unit includes a fixing component, a clamping component, and a fixing bolt. The fixing component is provided with a first clamping piece. This utility model, through the cooperation of the fixing component, clamping component, and fixing bolt in the fixing unit, can firmly fix the fins and transmission unit, preventing loosening, ensuring stable operation of the evaporator, reducing noise caused by loosening, and ensuring cooling effect. The connecting piece and positioning piece on the fixing component facilitate the installation and positioning of the evaporator with other refrigerator components. At the same time, the structural design of the fixing unit simplifies the installation and disassembly process of the evaporator, facilitating later maintenance and repair.
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Description

Technical Field

[0001] This utility model relates to the field of refrigerator refrigeration equipment technology, specifically a finned evaporator for household refrigerators. Background Technology

[0002] In the refrigeration system of a household refrigerator, the finned evaporator plays a crucial role, absorbing heat through the evaporation of refrigerant to cool the interior of the refrigerator.

[0003] Existing finned evaporators for household refrigerators have some structural design shortcomings. The evaporator's fixing structure is not stable enough, and during refrigerator use, the fixing components and transmission pipes are prone to loosening, which not only affects the cooling effect but may also generate noise. Furthermore, the installation and disassembly process of the evaporator is relatively cumbersome, hindering later maintenance and repair. Therefore, it is necessary to improve and optimize existing finned evaporators for household refrigerators.

[0004] Existing household refrigerator finned evaporators are prone to loosening between the fixing parts and the transmission pipes, which affects the cooling effect and causes noise. The installation and disassembly process of the evaporator is also relatively complicated, which is not conducive to later maintenance and repair. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a finned evaporator for household refrigerators, which solves the problems of loosening between the fixing parts and the transmission pipes in existing household refrigerator finned evaporators, affecting the cooling effect and causing noise; and the cumbersome installation and disassembly process of the evaporator, which is not conducive to later maintenance and repair.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a finned evaporator for a household refrigerator, comprising a transmission unit, fins, and a fixing unit, wherein the fins and the fixing unit are sleeved on the outside of the transmission unit, and the fins are located inside the fixing unit, wherein the fixing unit comprises:

[0007] A fastener, wherein a first clamping piece is provided on the fastener, and the fastener has first slots evenly distributed in a linear pattern on both sides;

[0008] A clamping member, wherein a second clamping piece is provided on the clamping member corresponding to the first clamping piece, and a second slot corresponding to the first slot is provided on the inner side of the clamping member;

[0009] A fixing bolt, which passes through the first clamping piece and the second clamping piece, is used to fix the fixing component and the clamping component.

[0010] Preferably, the transmission unit is provided with a serpentine tube, which is fixedly engaged by a first bayonet and a second bayonet.

[0011] Preferably, the serpentine tube is connected to an inlet and an outlet at both ends, and a gas-liquid separator is provided on the inlet.

[0012] Preferably, the fin has a sleeve hole, which is fitted onto the outside of the serpentine tube, and the outside of the fin has a chamfer.

[0013] Preferably, the fastener is connected to connecting pieces at both ends, and positioning pieces are connected to the outer side of the connecting pieces.

[0014] Preferably, the fixing bolt is provided with a screw, a sleeve and a nut. The screw is inserted into the inner side of the first clamp and the second clamp, the sleeve is located between the first clamps, and the nut is sleeved on the outer side of the screw and located on both sides of the second clamp.

[0015] This utility model discloses a finned evaporator for household refrigerators, which has the following beneficial effects:

[0016] This utility model, through the cooperation of fixing parts, clamping parts and fixing bolts in the fixing unit, can firmly fix the fins and the transmission unit, prevent loosening, ensure stable operation of the evaporator, reduce noise caused by loosening, and ensure the cooling effect;

[0017] The connecting and positioning plates on the fixing parts facilitate the installation and positioning of the evaporator with other parts of the refrigerator. At the same time, the structural design of the fixing unit makes the installation and disassembly of the evaporator simpler, and facilitates later maintenance and repair. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the conveying unit of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the fin of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the fixing unit of this utility model;

[0023] Figure 5 This is a structural schematic diagram of the fixing bolt of this utility model.

[0024] In the diagram: 1. Transmission unit; 11. Serpentine tube; 12. Inlet; 121. Gas-liquid separator; 13. Outlet; 2. Fin; 21. Sleeve hole; 22. Chamfer; 3. Fixing unit; 31. Fixing component; 311. First clamping piece; 312. First bayonet; 313. Connecting piece; 314. Positioning piece; 32. Clamping component; 321. Second clamping piece; 322. Second bayonet; 33. Fixing bolt; 331. Screw; 332. Sleeve; 333. Nut. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] This application provides a finned evaporator for household refrigerators, which solves the problems of existing finned evaporators, such as loosening between the fixing parts and the transmission pipes, affecting the cooling effect and causing noise; and the cumbersome installation and disassembly process of the evaporator, which is not conducive to later maintenance and repair. The evaporator is installed firmly and is easy to disassemble and repair.

[0027] This utility model discloses a finned evaporator for household refrigerators.

[0028] Example 1: According to the appendix Figure 1-5 As shown, the refrigerator includes a transmission unit 1, fins 2, and a fixing unit 3. The fins 2 and fixing unit 3 are sleeved on the outside of the transmission unit 1, with the fins 2 located inside the fixing unit 3. The fixing unit 3 includes a fixing member 31, a clamping member 32, and a fixing bolt 33. The fixing member 31 has a first clamping piece 311 and linearly evenly distributed first slots 312 on both sides. The clamping member 32 has a second clamping piece 321 corresponding to the first clamping piece 311, and a second slot 322 corresponding to the first slot 312 is located on its inner side. The fixing bolt 33 passes through the first clamping piece 311 and the second clamping piece 321 to fix the fixing member 31 and the clamping member 32. This design of the fixing unit 3 ensures the transmission unit 1 is securely fixed, preventing loosening during refrigerator operation.

[0029] This utility model, through the cooperation of the fixing member 31, clamping member 32 and fixing bolt 33 in the fixing unit 3, can firmly fix the transmission unit 1, prevent loosening, ensure stable operation of the evaporator, reduce noise caused by loosening, and ensure the cooling effect; the connecting piece 313 and positioning piece 314 on the fixing member 31 facilitate the installation and positioning of the evaporator with other parts of the refrigerator. At the same time, the structural design of the fixing unit 3 makes the installation and disassembly process of the evaporator simpler and facilitates later maintenance and repair.

[0030] Furthermore, the transmission unit 1 is provided with a serpentine tube 11, which is fixedly engaged by a first bayonet 312 and a second bayonet 322. The fixed engagement of the serpentine tube 11 by the first bayonet 312 and the second bayonet 322 ensures the stable position of the serpentine tube 11 in the evaporator, thereby ensuring stable cooling effect.

[0031] Furthermore, the serpentine tube 11 is connected to an inlet 12 and an outlet 13 at both ends, and a gas-liquid separator 121 is provided on the inlet 12.

[0032] Specifically disclosed, the fin 2 has a sleeve hole 21, which is sleeved on the outside of the serpentine tube 11, and the outside of the fin 2 has a chamfer 22.

[0033] Specifically disclosed, the fastener 31 has connecting pieces 313 at both ends, and positioning pieces 314 are connected to the outer side of the connecting pieces 313.

[0034] Example 2: According to the appendix Figure 1-5 As shown, the device includes a transmission unit 1, fins 2, and a fixing unit 3. The fins 2 and the fixing unit 3 are sleeved on the outside of the transmission unit 1, with the fins 2 located inside the fixing unit 3. The fixing unit 3 includes a fixing member 31, a clamping member 32, and a fixing bolt 33. The fixing member 31 is provided with a first clamping piece 311, and the fixing member 31 has linearly evenly distributed first slots 312 on both sides. The clamping member 32 is provided with a second clamping piece 321 corresponding to the first clamping piece 311, and the clamping member 32 has a second slot 322 corresponding to the first slot 312 on its inner side. The fixing bolt 33 passes through the first clamping piece 311 and the second clamping piece 321 to fix the fixing member 31 and the clamping member 32.

[0035] It is particularly important to emphasize that the fixing bolt 33 is provided with a screw 331, a sleeve 332, and a nut 333. The screw 331 is inserted into the inner side of the first clamping piece 311 and the second clamping piece 321. The sleeve 332 is located between the first clamping pieces 311, and the nut 333 is sleeved on the outer side of the screw 331, located on both sides of the second clamping piece 321. This structural design of the fixing bolt 33 can better ensure the fastening effect between the fixing member 31 and the clamping member 32, and the sleeve 332 can prevent the first clamping piece 311 from being damaged during the fixing process.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A finned evaporator for a household refrigerator, comprising a transmission unit (1), fins (2), and a fixing unit (3), wherein the fins (2) and the fixing unit (3) are sleeved on the outside of the transmission unit (1), and the fins (2) are located on the inside of the fixing unit (3), characterized in that, The fixing unit (3) includes: The fastener (31) is provided with a first clip (311) and the fastener (31) has a first slot (312) evenly distributed in a linear pattern on both sides. The clamping member (32) is provided with a second clamping piece (321) corresponding to the first clamping piece (311), and a second slot (322) corresponding to the first slot (312) is opened on the inner side of the clamping member (32). A fixing bolt (33) passes through the first clamping piece (311) and the second clamping piece (321) to fix the fixing member (31) and the clamping member (32).

2. A finned evaporator for a household refrigerator according to claim 1, characterized in that, The transmission unit (1) is provided with a serpentine tube (11), which is fixedly connected by a first bayonet (312) and a second bayonet (322).

3. A finned evaporator for a household refrigerator according to claim 2, characterized in that, The serpentine tube (11) is connected to an inlet (12) and an outlet (13) at both ends, and a gas-liquid separator (121) is provided on the inlet (12).

4. A finned evaporator for a household refrigerator according to claim 1, characterized in that, The fin (2) has a sleeve hole (21) which is sleeved on the outside of the serpentine tube (11). The fin (2) has a chamfer (22) on the outside.

5. A finned evaporator for a household refrigerator according to claim 1, characterized in that, The fastener (31) has connecting pieces (313) at both ends, and positioning pieces (314) are connected to the outside of the connecting pieces (313).

6. A finned evaporator for a household refrigerator according to claim 1, characterized in that, The fixing bolt (33) is provided with a screw (331), a sleeve (332) and a nut (333). The screw (331) is inserted into the inner side of the first clamp (311) and the second clamp (321). The sleeve (332) is located between the first clamp (311). The nut (333) is sleeved on the outer side of the screw (331) and located on both sides of the second clamp (321).