Refrigerator evaporator with high heat exchange efficiency

Abstract

The utility model relates to a refrigerator evaporator with high heat exchange efficiency, and belongs to the technical field of evaporators, the refrigerator evaporator comprises a mounting frame, a connecting frame, a U-shaped copper pipe and a fin, the fin is provided with a plurality of oval through holes, and one side of each oval through hole is provided with an oval extending surface fixedly connected with the fin; the contact area between the U-shaped copper pipes and the oval through holes and the oval extending face can be increased, and heat exchange pipes penetrate through the oval through holes in the same row. Through the arrangement of the oval through holes, the oval extending faces and the fixing structures, the contact area of the heat exchange pipes and the oval extending faces is increased, then the heat exchange effect is improved, the heating effect on the fins is better, the defrosting efficiency is improved, the U-shaped copper pipes and the heat exchange pipes are conveniently limited through the fixing structures, shaking is prevented, and the defrosting effect is improved. And the heat exchange tubes are inserted into the oval through holes for installation, so that the space occupied by the heat exchange tubes is saved.

Description

Technical Field

[0001] The present application relates to the technical field of evaporators, and in particular to an evaporator for a refrigerator with high heat exchange efficiency. Background Art

[0002] Currently, during the refrigeration process of a refrigerator, due to the large temperature difference between the inside and outside of the evaporator surface, a frost layer will form on the surface. The longer the refrigeration time, the thicker the frost layer. If the evaporator is not defrosted regularly, it will seriously affect the working efficiency of the evaporator, resulting in a slow decrease in the air temperature inside the refrigerator, an extended working time of the refrigerator, and an increase in the energy consumption of the refrigerator. The defrosting heater is generally installed at the lower end of the evaporator and melts the frost on the evaporator through convection. The heat generated by the defrosting heater is concentrated at the lower end of the evaporator, and the defrosting speed of the upper end of the evaporator is significantly slower due to the long distance, resulting in uneven defrosting of the evaporator.

[0003] Regarding the above related technologies, the inventor believes that the existing refrigerator defrosting device has poor heat exchange effect, affects the use effect of the refrigerator, and occupies a relatively large internal space of the refrigerator. Utility Model Content

[0004] The purpose of the present application is to provide an evaporator for a refrigerator with high heat exchange efficiency to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present application provides an evaporator for a refrigerator with high heat exchange efficiency, adopting the following technical solutions:

[0006] An evaporator for a refrigerator with high heat exchange efficiency includes a mounting frame, a connecting frame, a U-shaped copper tube, and fins. A plurality of oval through holes are formed in the fins. An oval extension surface fixedly connected to the fins is provided on one side of the oval through holes. A heat exchange tube passes through the same row of oval through holes. Both sides of the heat exchange tube are in contact with the inner wall of the oval through holes. Fixed structures are symmetrically provided at both ends of the heat exchange tube.

[0007] The fixed structure includes a clamping block, a first telescopic rod, and a first spring. One end of the first telescopic rod is fixedly connected to the heat exchange tube, and the other end is fixedly connected to the clamping block. A first spring is sleeved on the thin end of the first telescopic rod.

[0008] By adopting the above technical solutions, the contact area between the heat exchange tube and the oval extension surface is increased, thereby enhancing the heat exchange effect, making the heating effect on the fins better, improving the defrosting efficiency. The fixed structure facilitates the positioning of the U-shaped copper tube and the heat exchange tube to prevent shaking and affecting the use effect of the product. Inserting the heat exchange tube into the oval through holes for installation saves the space occupied by the heat exchange tube.

[0009] Preferably, one of the U-shaped copper tubes penetrates through a plurality of fins. The inner diameter widths of the oval through-holes and the oval extension surfaces are the same, and the diameter of the U-shaped copper tube is the same as the width of the oval through-holes, so that when the U-shaped copper tube is inserted into the oval through-holes, it fits and contacts with the inner walls of the oval through-holes.

[0010] By adopting the above technical solution, the contact area between the U-shaped copper tube and the oval through-holes and the oval extension surfaces is increased, thereby improving the refrigeration efficiency.

[0011] Preferably, the heat exchange tube is arranged inside the U-shaped copper tubes in the same row, and the side of the clamping block close to the U-shaped copper tube fits with the surface of the U-shaped copper tube.

[0012] By adopting the above technical solution, the space occupied by the heat exchange tube is saved.

[0013] Preferably, mounting brackets are arranged at both ends of the fins. Mounting mechanisms are fixed on the same side of the two mounting brackets. The mounting mechanism includes a fixing plate, a baffle, a second telescopic rod, a second spring, an L-shaped extrusion block, a connecting block and a threaded rod. A fixing plate is fixed on one side of the mounting bracket. Baffles are symmetrically arranged at both ends of the fixing plate. Second telescopic rods are fixedly connected to the inner sides of the two baffles. A second spring is sleeved on the thin end of the second telescopic rod. The end of the second telescopic rod away from the baffle is fixedly connected to the L-shaped extrusion block. A connecting block is fixed on one side of the second telescopic rod. The connecting block is internally threaded with the threaded rod.

[0014] By adopting the above technical solution, it is convenient to fix the mounting bracket on the fixing plate on the refrigerator through the L-shaped extrusion block, and the fixing is carried out by adjusting the pressure of the threaded rod on the L-shaped extrusion block, making the installation more convenient.

[0015] Preferably, the connecting block is fixedly connected to the outside of the thick section of the second telescopic rod.

[0016] By adopting the above technical solution, when the threaded rod rotates, the connecting block does not move, which is convenient to fix the L-shaped extrusion block through the threaded rod.

[0017] In summary, the present application includes at least one of the following beneficial technical effects:

[0018] 1. Through the arrangement of the oval through-holes, the oval extension surfaces and the fixing structure, the contact area between the heat exchange tube and the oval extension surfaces is increased, thereby increasing the heat exchange effect, making the heating effect on the fins better, improving the defrosting efficiency. The fixing structure facilitates the limiting of the U-shaped copper tube and the heat exchange tube, preventing shaking and affecting the use effect of the product. Inserting the heat exchange tube into the oval through-holes for installation saves the space occupied by the heat exchange tube;

[0019] 2. Through the setting of the installation mechanism, it is convenient to fix the mounting bracket on the fixing plate of the refrigerator through the L-shaped extrusion block, and the fixing is carried out by adjusting the pressure of the threaded rod on the L-shaped extrusion block, making the installation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram showing the overall structure in an embodiment of the present application.

[0021] Figure 2 is a schematic structural diagram showing the overall structure from other angles in an embodiment of the present application.

[0022] Figure 3 is a schematic structural diagram showing the fins in an embodiment of the present application.

[0023] Figure 4 is a side view showing the overall structure in an embodiment of the present application.

[0024] Figure 5 is a schematic diagram showing the connection relationship between the heat exchange tube and the fixing structure in an embodiment of the present application.

[0025] Figure 6 is in an embodiment of the present application Figure 5 a magnified structural diagram of part A.

[0026] Description of the reference numerals: 1, mounting bracket; 2, connecting bracket; 3, U-shaped copper tube; 4, fins; 5, oval through hole; 6, oval extension surface; 7, heat exchange tube; 8, fixing structure; 81, block; 82, first telescopic rod; 83, first spring; 10, installation mechanism; 101, fixing plate; 102, baffle; 103, second telescopic rod; 104, second spring; 105, L-shaped extrusion block; 106, connecting block; 107, threaded rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following further describes the present application in detail Figures 1-5 with reference to the accompanying drawings.

[0028] An embodiment of the present application discloses an evaporator for a refrigerator with high heat exchange efficiency. Referring to Figures 1-6 , it includes a mounting bracket 1, a connecting bracket 2, a U-shaped copper tube 3 and fins 4. A plurality of oval through holes 5 are formed in the fins 4. An oval extension surface 6 fixedly connected to the fins 4 is provided on one side of the oval through holes 5, which can increase the contact area between the U-shaped copper tube 3 and the oval through holes 5 and the oval extension surface 6. The heat exchange tube 7 passes through the same row of oval through holes 5. Both sides of the heat exchange tube 7 are in contact with the inner wall of the oval through holes 5, reducing the space occupied by the heat exchange tube 7. Fixing structures 8 are symmetrically provided at both ends of the heat exchange tube 7;

[0029] The fixing structure 8 includes a clamping block 81, a first telescopic rod 82 and a first spring 83. One end of the first telescopic rod 82 is fixedly connected to the heat exchange tube 7, and the other end is fixedly connected to the clamping block 81. The first spring 83 is sleeved on the thin end of the first telescopic rod 82. A U-shaped copper tube 3 penetrates through a plurality of fins 4. The inner diameter widths of the elliptical through hole 5 and the elliptical extension surface 6 are the same. The diameter of the U-shaped copper tube 3 is the same as the width of the elliptical through hole 5, so that when the U-shaped copper tube 3 is inserted into the elliptical through hole 5, it fits and contacts the inner wall of the elliptical through hole 5. The heat exchange tube 7 is arranged inside the U-shaped copper tubes 3 in the same row. The side of the clamping block 81 close to the U-shaped copper tube 3 fits the surface of the U-shaped copper tube 3. The U-shaped copper tubes 3 on both sides of the heat exchange tube 7 can be fixed by the clamping block 81, preventing the U-shaped copper tube 3 and the heat exchange tube 7 from moving in the elliptical through hole 5 and causing deformation, which affects the use of the product.

[0030] Referring to Figures 1-2 , mounting brackets 1 are arranged at both ends of the fin 4. Mounting mechanisms 10 are fixedly provided on the same side of the two mounting brackets 1. The mounting mechanism 10 includes a fixing plate 101, a baffle 102, a second telescopic rod 103, a second spring 104, an L-shaped extrusion block 105, a connecting block 106 and a threaded rod 107. A fixing plate 101 is fixedly provided on one side of the mounting bracket 1. Baffles 102 are symmetrically arranged at both ends of the fixing plate 101. The second telescopic rods 103 are fixedly connected to the inner sides of the two baffles 102. The second spring 104 is sleeved on the thin end of the second telescopic rod 103. The end of the second telescopic rod 103 away from the baffle 102 is fixedly connected to the L-shaped extrusion block 105. A connecting block 106 is fixedly provided on one side of the second telescopic rod 103. The threaded rod 107 is threadedly connected to the connecting block 106. The connecting block 106 is fixedly connected to the outside of the thick end of the second telescopic rod 103. The evaporator is clamped on a pre-placed bracket through the symmetric L-shaped extrusion blocks 105, and the L-shaped extrusion blocks 105 are extruded by adjusting the threaded rod 107, which facilitates the fixing of the evaporator.

[0031] The implementation principle of an evaporator for a refrigerator with high heat exchange efficiency in the embodiment of the present application is as follows:

[0032] During installation, the evaporator is clamped on a pre-placed bracket through the symmetric L-shaped extrusion blocks 105, and the L-shaped extrusion blocks 105 are extruded by adjusting the threaded rod 107, which facilitates the fixing of the evaporator. The U-shaped copper tube 3 contacts the elliptical through hole 5 and the elliptical extension surface 6, increasing the cold absorption effect of the fin 4, thereby improving the freezing effect of the refrigerator. After using for a period of time, the heat exchange tube 7 transfers the heat of the heater to the elliptical through hole 5 and the elliptical extension surface 6 better, accelerating the defrosting efficiency and facilitating later use.

[0033] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, principle and application direction of the present application shall be covered within the protection scope of the present application.

Claims

1. An evaporator for a refrigerator with high heat exchange efficiency, comprising a mounting frame (1), a connecting frame (2), a U-shaped copper tube (3) and fins (4), characterized in that: A plurality of oval through holes (5) are formed in the fin (4), and an oval extension surface (6) fixedly connected to the fin (4) is provided on one side of the oval through hole (5). A heat exchange tube (7) penetrates through the oval through holes (5) in the same row. Both sides of the heat exchange tube (7) are in contact with the inner wall of the oval through hole (5). Fixed structures (8) are symmetrically provided at both ends of the heat exchange tube (7). The fixed structure (8) includes a clamping block (81), a first telescopic rod (82) and a first spring (83). One end of the first telescopic rod (82) is fixedly connected to the heat exchange tube (7), and the other end is fixedly connected to the clamping block (81). A first spring (83) is sleeved on the thin end of the first telescopic rod (82).

2. The evaporator for a refrigerator with high heat exchange efficiency according to claim 1, characterized in that: One U-shaped copper tube (3) penetrates through a plurality of fins (4). The inner diameter widths of the oval through hole (5) and the oval extension surface (6) are the same. The diameter of the U-shaped copper tube (3) is the same as the width of the oval through hole (5), so that when the U-shaped copper tube (3) is inserted into the oval through hole (5), it fits and contacts the inner wall of the oval through hole (5).

3. The evaporator for a refrigerator with high heat exchange efficiency according to claim 1, characterized in that: The heat exchange tube (7) is arranged inside the U-shaped copper tubes (3) in the same row. The side of the clamping block (81) close to the U-shaped copper tube (3) is in contact with the surface of the U-shaped copper tube (3).

4. The evaporator for a refrigerator with high heat exchange efficiency according to claim 1, characterized in that: Mounting brackets (1) are provided at both ends of the fin (4). Mounting mechanisms (10) are fixed on the same side of the two mounting brackets (1). The mounting mechanism (10) includes a fixing plate (101), a baffle (102), a second telescopic rod (103), a second spring (104), an L-shaped extrusion block (105), a connecting block (106) and a threaded rod (107). A fixing plate (101) is fixed on one side of the mounting bracket (1). Baffles (102) are symmetrically provided at both ends of the fixing plate (101). Second telescopic rods (103) are fixedly connected to the inner sides of the two baffles (102). A second spring (104) is sleeved on the thin end of the second telescopic rod (103). An L-shaped extrusion block (105) is fixedly connected to the end of the second telescopic rod (103) away from the baffle (102). A connecting block (106) is fixed on one side of the second telescopic rod (103). A threaded rod (107) is threadedly connected inside the connecting block (106).

5. The evaporator for a refrigerator with high heat exchange efficiency according to claim 4, characterized in that: The connecting block (106) is fixedly connected to the outside of the thick section of the second telescopic rod (103).

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