Refrigerator evaporator cover structure

Abstract

The utility model belongs to refrigerator technical field discloses a refrigerator evaporimeter cover structure, including inner bag and the cover body being established at the opening of inner bag, the cover body is made of low thermal conductivity coefficient material and is integrated composite heat preservation structure, the opening of inner bag is arranged as the ladder shape. The utility model makes the integrated composite heat preservation structure of cover body by low thermal conductivity coefficient material, fundamentally blocks the cold bridge, makes the temperature of cover body outer surface higher than the ambient dew point temperature, solves the icing, corrosion and health problem caused by condensate accumulation, through the modularization quick detach buckle structure that is established, need not use any tool to detach and install cover body easily, reduces the time -consuming of cleaning and maintaining evaporimeter, fan, can clean regularly, guarantees that the refrigerator is long -term high efficiency, the operation of health also avoids the thread slip tooth situation caused by repeatedly screwing screw of current adoption screw, has high reliability and safety.

Description

Technical Field

[0001] This utility model relates to the field of freezer technology, and in particular to a freezer evaporator cover structure. Background Technology

[0002] In the design of freezer products, the evaporator and its fan are usually installed at the bottom of the cabinet and shielded and ducted by a cover structure. Existing freezer evaporator covers generally have the following defects: First, in terms of condensation prevention, existing covers are mostly made of ordinary single-layer plastic (such as ABS, PS) or metal sheet parts. These materials themselves have a certain degree of thermal conductivity. The low temperature of the evaporator will be directly conducted to its outer surface through the fixing point (screws) and the cover body. When the surface temperature is lower than the dew point temperature of the air inside the cabinet, serious condensation will occur. The accumulation and dripping of this condensate not only leads to water accumulation and food contamination inside the cabinet, but also causes long-term problems such as corrosion of metal parts, excessive frost buildup on the evaporator, and mold growth, seriously affecting the user experience, hygiene, safety, and reliability of the product. A few solutions attempt to attach heat insulation cotton to the inside of the cover, but this has drawbacks such as poor adhesion, easy detachment, increased thickness, and limited effectiveness. Secondly, in terms of installation and maintenance, the existing cover relies almost entirely on multiple screws for fixation. When cleaning dust and mold on the evaporator fins or fan, all screws must be unscrewed one by one using screwdrivers and other tools, which is cumbersome and time-consuming. At the same time, after repeated disassembly and reassembly, the screws are prone to stripping and breaking, reducing the product's durability. Utility Model Content

[0003] To overcome the technical defects of the existing technology, this utility model provides a refrigerator evaporator cover structure.

[0004] The technical solution adopted by this utility model is: a refrigerator evaporator cover structure, including an inner liner and a cover body disposed at the opening of the inner liner. The cover body is an integrated composite insulation structure made of a low thermal conductivity material. The opening of the inner liner is stepped. One end of the cover body is connected to the stepped inner wall via a pin shaft. A modular quick-release buckle structure is provided on the end of the cover body away from the hinge. The modular quick-release buckle structure is used to detachably fix the cover body inside the stepped inner liner. The modular quick-release buckle structure includes a cover body... The device includes a positioning block on the upper part of the inner liner and a positioning slot on the inner liner that is connected to the stepped opening and matches the positioning block. The top of the inner liner has an inwardly recessed locking groove. Inside the locking groove, there are two symmetrical lever-assisted components for locking the positioning block. The lever-assisted component includes a first bracket inside the locking groove. A lever is connected to the first bracket via a rotating shaft. A torsion spring is provided on the lever. The inner end of the lever has a locking tongue. The bottom end of the positioning block has a locking groove that matches the locking tongue. The locking groove has a rotating groove that allows the locking tongue to move and is connected to the positioning slot.

[0005] Preferably, the integrated composite insulation structure includes an inner panel and an outer panel, as well as an insulating core material filled between the inner panel and the outer panel.

[0006] Preferably, the heat insulation core material is a vacuum heat insulation board or a microporous polyurethane foam material.

[0007] Preferably, the opening of the locking groove is provided with an anti-misoperation component.

[0008] Preferably, the anti-misoperation component includes a second bracket in the shape of a U at the opening of the locking groove, and two through holes at the top of the second bracket, with T-shaped limiting baffles inserted inside the two through holes.

[0009] Preferably, the inner wall of one of the through holes is provided with a first magnet, and a second magnet with a magnetic property different from that of the first magnet is embedded at one end of the limiting baffle.

[0010] Preferably, the cross-sections of the insertion hole and the limiting baffle are both rectangular.

[0011] The beneficial effects of this utility model are: 1. The integrated composite insulation structure made of low thermal conductivity material for the cover body fundamentally blocks cold bridges, ensuring that the temperature of the outer surface of the cover body is higher than the ambient dew point temperature. This solves the problems of icing, corrosion, and hygiene caused by condensate accumulation, improves insulation performance, and reduces cold loss. The modular quick-release buckle structure allows for easy disassembly and installation of the cover body without the use of any tools, reducing the time spent cleaning and maintaining the evaporator and fan. Regular cleaning can be performed to ensure the long-term efficient and hygienic operation of the freezer. It also avoids the problem of stripped threads caused by repeated tightening of screws, which is currently used. It has high reliability and safety and improves maintenance efficiency. 2. After the cover body is installed, the lever is located inside the U-shaped bracket. The T-shaped limiting baffle passes through the two through holes at the top of the bracket. The first magnet on the limiting baffle and the second magnet on the limiting baffle are attracted to each other to prevent the user, especially children, from accidentally touching the lever and causing the cover body to open. The limiting baffle must be opened and removed before the lever can be operated. Attached Figure Description

[0012] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2This is a cross-sectional view of the integrated composite thermal insulation structure of this utility model. Figure 3 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle; Figure 4 This is a cross-sectional view of the connection structure between the lock tongue and the lock groove of this utility model; Figure 5 This is a cross-sectional view of the anti-misoperation component of this utility model.

[0014] Explanation of reference numerals in the attached drawings: 1. Inner liner; 2. Cover body; 3. Modular quick-release buckle structure; 4. Inner panel; 5. Outer panel; 6. Insulation core material; 7. Positioning block; 8. Positioning slot; 9. Locking groove; 10. Lever assist component; 11. Bracket; 12. Lever; 13. Torsion spring; 14. Locking tongue; 15. Locking groove; 16. Rotating groove; 17. Anti-misoperation component; 18. Bracket; 19. Through hole; 20. Limiting baffle; 21. First magnet; 22. Second magnet. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0016] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, this embodiment provides a refrigerator evaporator cover structure, including an inner liner 1 and a cover body 2 located at the opening of the inner liner 1. The cover body 2 is an integrated composite insulation structure made of a low thermal conductivity material. The opening of the inner liner 1 is stepped, which enhances the sealing performance. One end of the cover body 2 is connected to the stepped inner wall via a pin shaft. A modular quick-release buckle structure 3 is provided on the end of the cover body 2 away from the hinge. The modular quick-release buckle structure 3 is used to detachably fix the cover body 2 inside the stepped inner liner 1. The modular quick-release buckle structure 3 includes a positioning block 7 on the cover body 2 and a positioning block 7 on the inner liner 1 connected to the stepped inner wall via a pin shaft. The inner liner 1 has an opening that connects to and matches the positioning block 7, and a locking groove 8 at the top of the inner liner 1. The locking groove 9 has two symmetrically arranged lever-assisting components 10 for locking the positioning block 7. Each lever-assisting component 10 includes a first bracket 11 located inside the locking groove 9. A lever 12 is connected to the first bracket 11 via a pivot. A torsion spring 13 is mounted on the lever 12. A locking tongue 14 is located at the inner end of the lever 12. The bottom end of the positioning block 7 has a locking groove 15 that matches the locking tongue 14. The locking groove 9 has a rotating groove 16 that allows the locking tongue 14 to move and connects to the positioning groove 8. The torsion spring 13 provides an automatic return force, causing the lever 12 to... 2. The opening and closing process is smoother and less strenuous. The integrated composite insulation structure provides insulation, and its thermal resistance is greater than that of traditional single-layer plastic or metal covers. This effectively slows down the conduction of cold air from the internal evaporator to the outer surface of the cover body 2, preventing the outer surface temperature of the cover body 2 from dropping below the dew point temperature of the air inside the cabinet, thus preventing condensation. The integrated composite insulation structure, made of a low thermal conductivity material, fundamentally blocks cold bridges, ensuring the outer surface temperature of the cover body 2 is above the ambient dew point temperature. This solves the problems of icing, corrosion, and hygiene caused by condensation accumulation. (The last sentence appears to be incomplete and possibly refers to a specific module or feature.) The modular quick-release buckle structure 3 allows for easy disassembly and installation of the cover body 2 without the need for any tools. This reduces the time spent cleaning and maintaining the evaporator and fan, allowing for regular cleaning and ensuring the long-term, efficient, and hygienic operation of the freezer. It also avoids the stripping of threads caused by repeated tightening of screws, which is a common problem with current screw-based systems. This design offers high reliability and safety. The cover body 2 is connected by a hinge at one end and the other end is secured by the modular quick-release buckle structure 3. The locking tongue 14 and locking groove 15 of the lever-assisted component 10 in the modular quick-release buckle structure 3 work together to further ensure the secure closure of the cover body 2, improving the overall reliability and ease of use.The cover body 2 is connected to the inner liner 1 via a hinge segment. When closed, the positioning block 7 is aligned with the positioning groove 8 and pushed in. The lever assist component 10 automatically rebounds under the action of the torsion spring 13, and the locking tongue 14 engages with the locking groove 15, achieving quick locking. When opening, the outer end of the lever 12 is pressed down to overcome the force of the torsion spring 13 and disengage the locking tongue 14 from the locking groove 15, allowing the cover body 2 to be easily opened. The quick positioning and fixing are achieved through the cooperation of the positioning block 7 and the positioning groove 8. The structure is simple, the operation is convenient, and the assembly efficiency is improved.

[0017] The integrated composite insulation structure includes an inner panel 4 and an outer panel 5, as well as a heat insulation core material 6 filled between the inner panel 4 and the outer panel 5. The inner panel 4 and the outer panel 5 enhance mechanical strength, and the heat insulation core material 6 in the middle further improves the heat insulation effect. The structure is stable and has relatively good heat insulation performance.

[0018] The heat insulation core material 6 is made of vacuum insulation board or microporous polyurethane foam material. Vacuum insulation board and microporous polyurethane foam have extremely low thermal conductivity, which improves the overall heat preservation performance and is energy-saving and environmentally friendly.

[0019] The opening of the locking groove 9 is provided with an anti-misoperation component 17. The anti-misoperation component 17 includes a U-shaped second bracket 18 located at the opening of the locking groove 9. The top of the second bracket 18 is provided with two through holes 19. A T-shaped limiting baffle 20 is inserted inside the two through holes 19. A first magnet 21 is provided on the inner wall of one of the through holes 19. A second magnet 22 with a magnetic dissimilarity to the first magnet 21 is embedded at one end of the limiting baffle 20. The cross-sections of the through holes 19 and the limiting baffle 20 are both rectangular. After the cover body 2 is closed, the lever 12 is located inside the U-shaped second bracket 18. The T-shaped limiting baffle 20 is passed through the two through holes 19 at the top of the second bracket 18. The first magnet 21 on the limiting baffle 20 and the second magnet 22 on the limiting baffle 20 attract each other due to their different shapes, preventing the user, especially a child, from accidentally touching the lever 12 and causing the cover body 2 to open. The limiting baffle 20 must be opened and removed before the lever 12 can be operated.

[0020] During operation, the cover body 2, with its integrated composite insulation structure and stepped opening design of the inner liner 1, achieves excellent sealing and insulation effects. The cover body 2 is connected by a hinge at one end and a modular quick-release buckle structure 3 at the other end for quick opening, closing, and fixing. The locking tongue 14 and locking groove 15 of the lever-assisted component 10 in the modular quick-release buckle structure 3 cooperate to further ensure the stable closure of the cover body 2, improving the reliability and ease of use of the overall structure. When the cover body 2 is connected to the inner liner 1 via the hinge segment, the positioning block 7 is aligned with the positioning groove 8 and pushed in when closing. Under the action of the torsion spring 13, the lever-assisted component 10 automatically... The lever 14 engages with the locking groove 15 upon rebound, achieving quick locking. To open, press down on the outer end of the lever 12 to overcome the force of the torsion spring 13 and disengage the locking tongue 14 from the locking groove 15, allowing the cover body 2 to be easily opened. After the cover body 2 is closed, the lever 12 is located inside the U-shaped second bracket 18. The T-shaped limiting baffle 20 passes through the two insertion holes 19 at the top of the second bracket 18. The first magnet 21 on the limiting baffle 20 and the second magnet 22 on the limiting baffle 20 attract each other in opposite shapes, preventing users, especially children, from accidentally touching the lever 12 and causing the cover body 2 to open. The limiting baffle 20 must be opened and removed before the lever 12 can be operated.

[0021] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0022] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A refrigerator evaporator cover structure, comprising an inner liner (1) and a cover body (2) disposed at the opening of the inner liner (1), characterized in that: The cover body (2) is an integrated composite insulation structure made of low thermal conductivity material. The opening of the inner liner (1) is set in a stepped shape. One end of the cover body (2) is connected to the stepped inner wall via a pin shaft. A modular quick-release buckle structure (3) is provided on the end of the cover body (2) away from the hinge. The modular quick-release buckle structure (3) is used to detachably fix the cover body (2) in the stepped shape of the inner liner (1). The modular quick-release buckle structure (3) includes a positioning block (7) on the cover body (2) and a positioning groove (8) on the inner liner (1) that is connected to the stepped opening and matches the positioning block (7). The top of the inner liner (1) is provided with an inwardly recessed locking groove (9). The inside of the locking groove (9) is symmetrically provided with two lever assist components (10) for locking the positioning block (7). The lever assist component (10) includes a first bracket (11) inside the locking groove (9). A lever (12) is connected to the first bracket (11) via a rotating shaft. A torsion spring (13) is provided on the lever (12). The inner end of the lever (12) is provided with a locking tongue (14). The bottom end of the positioning block (7) is provided with a locking groove (15) that matches the locking tongue (14). The locking groove (9) is provided with a rotating groove (16) that allows the locking tongue (14) to move and is connected to the positioning groove (8).

2. The evaporator cover structure for a freezer according to claim 1, characterized in that: The integrated composite insulation structure includes an inner panel (4) and an outer panel (5), as well as a thermal insulation core material (6) filled between the inner panel (4) and the outer panel (5).

3. The evaporator cover structure for a freezer according to claim 2, characterized in that: The heat insulation core material (6) is a vacuum heat insulation board or a microporous polyurethane foam material.

4. The evaporator cover structure for a freezer according to claim 1, characterized in that: The opening of the locking groove (9) is provided with an anti-misoperation component (17).

5. The evaporator cover structure for a freezer according to claim 4, characterized in that: The anti-misoperation component (17) includes a second bracket (18) in the shape of a U at the opening of the locking groove (9). The top of the second bracket (18) is provided with two through holes (19), and a T-shaped limiting baffle (20) is inserted inside the two through holes (19).

6. The evaporator cover structure for a freezer according to claim 5, characterized in that: One of the insertion holes (19) has a first magnet (21) on its inner wall, and a second magnet (22) with a magnetic property different from that of the first magnet (21) is embedded at one end of the limiting baffle (20).

7. The evaporator cover structure for a freezer according to claim 6, characterized in that: The cross-sections of the insertion hole (19) and the limiting baffle (20) are both rectangular.

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