Flat evaporator

Abstract

The utility model discloses a flat type evaporator which comprises a plurality of radiating fins and a heat exchange pipe body, the heat exchange pipe body is an S-shaped bent pipe body which extends and is flatly laid in the vertical direction, and the vertical pipe body part of the heat exchange pipe body is inserted into all the radiating fins in a sleeved mode. The heat dissipation fins are rectangular fin bodies, a plurality of long through grooves are formed in each heat dissipation fin body, extending limiting parts are formed on the two inner side walls of the middle of each long through groove, the two ends of each long through groove are arc-shaped wall faces, arc-shaped connecting edges extending upwards are formed on the arc-shaped wall faces, and vertical pipe body parts are inserted into the ends of the corresponding long through grooves in a sleeved mode. The heat exchange pipe body is arranged in a single layer, so that the thickness of the manufactured evaporator is greatly reduced, the heat exchange pipe body can be installed on a rear wall plate of the refrigeration cabinet, the height of a storage space of the refrigeration cabinet is not affected, the storage space of the refrigeration cabinet is guaranteed, and the wavy protruding parts formed on the heat dissipation fins not only improve the strength, but also improve the heat dissipation efficiency. And the turbulence effect of air flowing through the heat dissipation fins is improved, the time of the air in the heat dissipation fins is prolonged, and the heat exchange effect is improved.

Description

Technical field:

[0001] The utility model relates to the technical field of heat exchanger processing equipment, and more specifically to a flat evaporator. Background technology:

[0002] In current refrigeration cabinets, the evaporator is generally installed directly on the top of the cabinet. The heat exchange tubes are generally bent into multiple layers of tubes stacked up and down. The thickness of this evaporator is thick, and the heat exchange is relatively concentrated, which has a certain impact on the heat exchange effect. At the same time, since the heat exchange tubes of the evaporator are bent into multiple layers of tubes stacked up and down on the top of the cabinet, it is relatively thick, which reduces the height of the internal placement space of the refrigeration cabinet, that is, the storage space becomes smaller, affecting its storage effect.

[0003] Moreover, the fins of the existing evaporator are generally directly provided with waist-shaped through holes for installing the heat exchange tubes, and have no other structures, so that the wind flowing through the fins has a short flow time and the heat exchange effect is limited. Utility model content:

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a flat evaporator, in which the heat exchange tube body is arranged in a single layer, so that the thickness of the evaporator made therefrom is greatly reduced, and the evaporator can be installed on the rear wall plate of a refrigeration cabinet, which will not affect the height of the storage space of the refrigeration cabinet and ensure its normal storage space. Moreover, the wave-shaped protrusions formed on the heat dissipation fins not only improve the strength thereof, but also increase the turbulence effect of the wind flowing therethrough, thereby increasing the time at the heat dissipation fins and improving the heat exchange effect.

[0005] The solution of the utility model to solve the technical problem is:

[0006] A flat evaporator comprises a plurality of heat dissipation fins and a heat exchange tube body, wherein the heat exchange tube body is an S-shaped bent tube body extending in a vertical direction and laid flat, and the vertical tube body portion of the heat exchange tube body is inserted into all the heat dissipation fins;

[0007] The heat dissipation fin is a rectangular sheet body, which is formed with a plurality of elongated through slots, and an extended limiting portion is formed on the two inner side walls in the middle of the elongated through slots, and the two ends of the elongated through slots are arc-shaped wall surfaces, on which arc-shaped connecting edges extending upward are formed, and the vertical tube body parts are inserted and sleeved at the ends of the corresponding elongated through slots, and the vertical tube bodies at the two ends of the elongated through slots are located on both sides of the two extended limiting portions, and the inner side walls of the arc-shaped connecting edges are closely attached to the outer side walls of the corresponding vertical tube body parts;

[0008] A plurality of recessed holes extending backwards are formed on the heat dissipation fins on one side of the elongated through slot.

[0009] All the long through slots of the heat dissipation fins extend obliquely, and all the long through slots are arranged horizontally and parallel to each other.

[0010] A waist-shaped protrusion extending forward and arranged obliquely is formed in the middle of the front wall surface of the heat dissipation fin, all the waist-shaped protrusions are parallel to each other and arranged laterally, a transition protrusion is formed between every two adjacent waist-shaped protrusions, one end of the transition protrusion is formed together with the lower end of the waist-shaped protrusion on one side, and the other end of the transition protrusion is formed together with the upper end of the waist-shaped protrusion on the other side;

[0011] All waist-shaped protrusions and all transitional protrusions are wavy protrusions. The wavy protrusions not only improve their strength, but also increase the turbulence effect of the wind flowing through them, increase the time at the heat dissipation fins, and improve the heat exchange effect.

[0012] A long through groove is formed in the middle of the top surface of the waist-shaped raised portion.

[0013] The heat exchange tube body is an S-shaped bent tube body extending vertically and laid flat in a single layer.

[0014] The outstanding effects of the utility model are:

[0015] Compared with the prior art, it arranges the heat exchange tube body in a single layer, so that the thickness of the evaporator made by it is greatly reduced. It can be installed on the rear wall panel of the refrigerator, will not affect the height of the storage space of the refrigerator, and ensure its normal storage space. Moreover, the wavy protrusions formed on its heat dissipation fins not only improve its strength, but also increase the turbulence effect of the wind flowing through here, increase the time at the heat dissipation fins, and improve the heat exchange effect. Description of the drawings:

[0016] Figure 1 It is a simple schematic diagram of the existing evaporator installed in the refrigeration cabinet;

[0017] Figure 2 It is a simple schematic diagram of the utility model installed in a refrigeration cabinet;

[0018] Figure 3 It is a partial structural schematic diagram of the utility model;

[0019] Figure 4 It is a partial structural schematic diagram of the heat dissipation fin of the utility model;

[0020] Figure 5 yes Figure 4 A partial enlarged view of

[0021] Figure 6 is a partial cross-sectional view of a heat sink fin;

[0022] Figure 7 is a partial side view of the heat sink fin;

[0023] Figure 8 It is a schematic diagram of the local structure at the concave hole. Specific implementation method:

[0024] For example, see Figures 2 to 8 As shown, a flat evaporator includes a plurality of heat dissipating fins 10 and a heat exchange tube body 20, wherein the heat exchange tube body 20 is an S-shaped bent tube body extending vertically and laid flat, that is, the heat exchange tube body 20 is an S-shaped bent tube body extending vertically and laid flat in a single layer. In this way, the thickness of the evaporator of this embodiment is greatly reduced, and it is laid flat, so that it can be installed on the rear wall panel of the refrigeration cabinet without increasing the thickness of the rear installation part of the refrigeration cabinet too much. Moreover, it is laid flat on the rear wall panel of the refrigeration cabinet, and the area of ​​the rear wall panel is large. For the entire laying, an evaporator with a larger area can be used, and the heat exchange effect is good.

[0025] The vertical tube body portion 21 of the heat exchange tube body 20 is inserted into all the heat dissipation fins 10;

[0026] Furthermore, the heat dissipation fin 10 is a rectangular sheet body, and a plurality of waist-shaped protrusions 14 extending forward and obliquely arranged are formed in the middle of the front wall surface of the heat dissipation fin 10, all waist-shaped protrusions 14 are parallel to each other and arranged laterally, and a transition protrusion 15 is formed between each adjacent two waist-shaped protrusions 14, one end of the transition protrusion 15 is formed together with the lower end of the waist-shaped protrusion 14 on one side, and the other end of the transition protrusion 15 is formed together with the upper end of the waist-shaped protrusion 14 on the other side; all waist-shaped protrusions 14 and all transition protrusions 15 form a wavy protrusion.

[0027] The wave-shaped protrusions not only improve the strength of the entire heat dissipation fin 10 , but also increase the turbulence effect of the wind flowing through the heat dissipation fin 10 , thereby improving the heat exchange effect.

[0028] An elongated through groove 141 is formed in the middle of the top surface of the waist-shaped protrusion 14, and an extended limiting portion 111 is formed on the two inner side walls in the middle of the elongated through groove 11. The two ends of the elongated through groove 11 are arc-shaped wall surfaces, on which arc-shaped connecting edges 112 extending upward are formed. The vertical tube body 21 is inserted and sleeved at the end of the corresponding elongated through groove 11. The vertical tube body 21 at the two ends of the elongated through groove 11 is located on both sides of the two extended limiting portions 111, and the inner side wall of the arc-shaped connecting edge 112 is in close contact with the outer side wall of the corresponding vertical tube body 21.

[0029] Furthermore, all the elongated through slots 11 of the heat dissipation fins 10 extend obliquely, and all the elongated through slots 11 are arranged horizontally and in parallel from left to right.

[0030] Furthermore, a plurality of recessed holes 12 extending backward are formed on the heat dissipation fin 10 above each long through slot 11. The recessed holes 12 are in the shape of a quadrangular pyramid. A plurality of waist-shaped recessed holes 13 extending backward are formed on the heat dissipation fin 10 below each long through slot 11, and there are two waist-shaped recessed holes 13 in this embodiment.

[0031] The concave holes 12 and the waist-shaped concave holes 13 both increase the turbulence effect of the wind flowing through the heat dissipation fins 10 .

[0032] Furthermore, one side of all the vertical tube bodies 21 of the heat exchange tube body 20 is mounted on the same cover plate, and the other side of all the vertical tube bodies 21 is mounted on the same bottom plate.

[0033] Furthermore, the liquid inlet end and the liquid outlet end of the heat exchange tube body 20 are respectively welded and fixed with an inlet pipe 22 and an outlet pipe 23, the inlet pipe 22 and the outlet pipe 23 are respectively connected with the liquid inlet end and the liquid outlet end of the heat exchange tube body 20, a heat shrink sleeve is fixed on the outer wall surface of the connection part between the inlet pipe 22 and the liquid inlet end of the heat exchange tube body 20, and a heat shrink sleeve is fixed on the outer wall surface of the connection part between the outlet pipe 23 and the liquid outlet end of the heat exchange tube body 20, and the feed end of the inlet pipe 22 is smaller than the discharge end of the outlet pipe 23.

[0034] In this embodiment, the heat exchange tube body 20 is arranged in a single layer, so that the thickness of the entire evaporator is greatly reduced. It can be installed on the rear wall panel of the refrigerator, which will not affect the height of the storage space of the refrigerator, thereby ensuring its normal storage space. In addition, the wavy protrusions formed on the heat dissipation fins 20 not only improve their strength, but also increase the turbulence effect of the wind flowing therethrough. Similarly, the concave holes 12 and the waist-shaped concave holes 13 also increase the turbulence effect of the wind flowing therethrough, thereby increasing the time that the wind is in the heat dissipation fins 20 and improving the heat exchange effect.

[0035] Finally, the above implementation modes are only used to illustrate the present invention, but not to limit the present invention. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention. The scope of patent protection of the present invention should be limited by the claims.

Claims

1. A flat evaporator, comprising a plurality of heat dissipation fins (10) and a heat exchange tube body (20), characterized in that: The heat exchange tube body (20) is an S-shaped bent tube body extending vertically and laid flat in a single layer, and the vertical tube body portion (21) of the heat exchange tube body (20) is inserted into all the heat dissipation fins (10); The heat dissipation fin (10) is a rectangular sheet body, which is formed with a plurality of elongated through grooves (11); two inner side walls in the middle of the elongated through grooves (11) are formed with extended limiting portions (111); the two ends of the elongated through grooves (11) are arc-shaped wall surfaces, on which arc-shaped connecting edges (112) extending upward are formed; the vertical tube body (21) is inserted into the ends of the corresponding elongated through grooves (11); the vertical tube body (21) at the two ends of the elongated through grooves (11) are located on both sides of the two extended limiting portions (111); and the inner side wall of the arc-shaped connecting edge (112) is in close contact with the outer side wall of the corresponding vertical tube body (21); A plurality of recessed holes (12) extending backwards are formed on the heat dissipation fin (10) on one side of the elongated through slot (11).

2. A flat evaporator according to claim 1, characterized in that: All the elongated through slots (11) of the heat dissipation fins (10) extend obliquely, and all the elongated through slots (11) are arranged horizontally and in parallel to the left and right.

3. A flat evaporator according to claim 1, characterized in that: A plurality of recessed holes (12) extending backwards are formed on the heat dissipation fins (10) above each elongated through slot (11).

4. A flat evaporator according to claim 3, characterized in that: The concave hole (12) is in the shape of a quadrangular pyramid.

5. The flat evaporator according to claim 1, characterized in that: A plurality of waist-shaped recessed holes (13) extending backwards are formed on the heat dissipation fins (10) below each elongated through slot (11).

6. A flat evaporator according to claim 1, characterized in that: A waist-shaped protrusion (14) is formed in the middle of the front wall surface of the heat dissipation fin (10) and is arranged obliquely and extends forward, all the waist-shaped protrusions (14) are parallel to each other and arranged transversely, a transition protrusion (15) is formed between every two adjacent waist-shaped protrusions (14), one end of the transition protrusion (15) is formed together with the lower end of the waist-shaped protrusion (14) on one side, and the other end of the transition protrusion (15) is formed together with the upper end of the waist-shaped protrusion (14) on the other side; All waist-shaped raised portions (14) and all transition raised portions (15) are wave-shaped raised portions.

7. A flat evaporator according to claim 6, characterized in that: A long through groove (141) is formed in the middle of the top surface of the waist-shaped raised portion (14).

8. The flat evaporator according to claim 1, characterized in that: One side of all the vertical tube bodies (21) of the heat exchange tube body (20) is mounted on the same cover plate, and the other side of all the vertical tube bodies (21) is mounted on the same bottom plate.

9. The flat evaporator according to claim 1, characterized in that: An inlet pipe (22) and an outlet pipe (23) are respectively welded and fixed to the liquid inlet end and the liquid outlet end of the heat exchange tube body (20); the inlet pipe (22) and the outlet pipe (23) are respectively connected to the liquid inlet end and the liquid outlet end of the heat exchange tube body (20); a heat shrink sleeve is fixed to the outer wall surface of the connection portion between the inlet pipe (22) and the liquid inlet end of the heat exchange tube body (20); a heat shrink sleeve is fixed to the outer wall surface of the connection portion between the outlet pipe (23) and the liquid outlet end of the heat exchange tube body (20); the feed end of the inlet pipe (22) is smaller than the discharge end of the outlet pipe (23).

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