Heat exchange assembly with supercooling section in middle position for mobile air conditioner

Abstract

The utility model discloses a heat exchange assembly with a supercooling section in the middle for a mobile air conditioner, which comprises a front end plate, a rear end plate, a condensation heat exchange tube and an evaporation heat exchange tube, the front parts and the rear parts of the condensation heat exchange tube and the evaporation heat exchange tube are respectively fixed on the front end plate and the rear end plate; a plurality of radiating fins are fixed on the condensation heat exchange tube and the evaporation heat exchange tube; a supercooling pipe is arranged between the condensation heat exchange pipe and the evaporation heat exchange pipe, and the front portion and the rear portion of the supercooling pipe are fixed to the front end plate and the rear end plate respectively. The condensation heat exchange pipe is composed of the three condensation branch heat exchange pipes, the evaporation heat exchange pipe is composed of the two branch heat exchange pipes, the flow of refrigerants is greatly increased, the heat exchange effect is achieved, meanwhile, the refrigerants flowing out of the three condensation branch heat exchange pipes firstly enter the supercooling pipe in a transition and concentration mode, the refrigerants are concentrated, flowing out of the supercooling pipe is more stable, and the heat exchange efficiency is improved. And the subsequent refrigeration effect is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchanger processing equipment, and more particularly to a heat exchange component for a mobile air conditioner with a supercooling section in the middle. Background Art

[0002] Current mobile air conditioners are equipped with an evaporator and a condenser, each of which is composed of a heat exchange tube and a plurality of heat exchange fins fixed thereon. Existing evaporators and condensers are both made of a single heat exchange tube, which limits the flow of refrigerant at the same time and reduces heat exchange efficiency.

[0003] At the same time, since the refrigerant in the condenser tube of the condenser will become smaller in volume after heat exchange and condensation, and the existing condenser and evaporator tube diameters are the same, when the refrigerant enters the evaporator tube of the evaporator from the condenser tube, its volume shrinks and cannot fill the entire evaporator tube, affecting its heat exchange effect. Utility Model Content

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a heat exchange component for a mobile air conditioner with a supercooling section in the middle position, which consists of three condensing sub-heat exchange tubes forming a condensing heat exchange tube, and two sub-heat exchange tubes forming an evaporating heat exchange tube, so that the flow rate of the refrigerant is greatly increased, and the heat exchange effect is improved. At the same time, the refrigerant flowing out of the three condensing sub-heat exchange tubes is first transitionally concentrated in the supercooling tube, so that the refrigerant is concentrated and the flow out of the supercooling tube is more stable, thereby ensuring the subsequent refrigeration effect. Moreover, the supercooling tube is located between the condensing heat exchange tube and the evaporating heat exchange tube, so that the refrigerant transported thereon can easily exchange heat with the evaporating heat exchange tube, thereby improving the cooling effect of the refrigerant in the supercooling tube, greatly accelerating the cooling of the refrigerant flowing in the supercooling tube, and improving the subsequent refrigeration effect.

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

[0006] A heat exchange assembly for a mobile air conditioner with a subcooling section in the middle, comprising a front plate, a rear plate, a condensing heat exchange tube, and an evaporating heat exchange tube, wherein the front and rear portions of the condensing heat exchange tube and the evaporating heat exchange tube are fixed to the front plate and the rear plate, respectively, and a plurality of heat dissipation fins are fixed to the condensing heat exchange tube and the evaporating heat exchange tube;

[0007] A subcooling tube is provided between the condensing heat exchange tube and the evaporating heat exchange tube, and the front and rear parts of the subcooling tube are fixed on the front end plate and the rear end plate respectively.

[0008] The condensing heat exchange tube is located at the lower part between the front end plate and the rear end plate, the evaporating heat exchange tube is located at the upper part between the front end plate and the rear end plate, and the subcooling tube is located below the evaporating heat exchange tube and at the upper part of the condensing heat exchange tube;

[0009] The discharge port of the condensing heat exchange tube is connected to the feed port of the supercooling tube through the first connecting tube, the discharge port of the supercooling tube is connected to the feed port of the capillary connecting tube, the discharge port of the capillary connecting tube is connected to one end of the capillary tube, the discharge port of the capillary tube is connected to the feed end of the three-way connecting tube, the two discharge ends of the three-way connecting tube are connected to one end of the branch connecting tube, and the other ends of the two branch connecting tubes are connected to the two feed ports of the evaporating heat exchange tube.

[0010] The evaporation heat exchange tube includes two S-shaped coiled sub-heat exchange tubes, the two sub-heat exchange tubes are arranged side by side up and down, and the discharge ports of the two sub-connecting tubes are connected to the feed ports of the two sub-heat exchange tubes.

[0011] The condensation heat exchange tube includes three condensation sub-heat exchange tubes coiled in an S shape, and the three condensation sub-heat exchange tubes are arranged side by side up and down. The feed ports of the three condensation sub-heat exchange tubes are connected to the inlet tube main part, and a side wall of the inlet tube main part is connected to the feed port connecting pipe part. Three outlets are formed on the side wall of the inlet tube main part. The feed ports of the three condensation sub-heat exchange tubes are welded and fixed on the side wall of the inlet tube main part and are connected to the corresponding outlets.

[0012] The discharge ports of the three condensation heat exchange tubes are welded and fixed to the side wall of the same first connecting tube and communicate with the side feed hole on the side wall of the first connecting tube. The upper discharge port of the first connecting tube is connected to the feed port of the supercooling tube.

[0013] The outstanding effects of the utility model are:

[0014] Compared with the prior art, it consists of three condensing sub-heat exchange tubes forming a condensing heat exchange tube, and two sub-heat exchange tubes forming an evaporating heat exchange tube, which greatly increases the flow rate of the refrigerant and improves the heat exchange effect. At the same time, the refrigerant flowing out of the three condensing sub-heat exchange tubes is first transitionally concentrated in the supercooling tube, making the refrigerant concentrated and the flow out of the supercooling tube more stable, ensuring the subsequent refrigeration effect, and the supercooling tube is located between the condensing heat exchange tube and the evaporating heat exchange tube, so that the refrigerant transported on it can easily exchange heat with the evaporating heat exchange tube, thereby improving the cooling effect of the refrigerant in the supercooling tube, greatly accelerating the cooling of the refrigerant flowing in the supercooling tube, and improving the subsequent refrigeration effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a partial structural diagram of the utility model;

[0016] Figure 2 It is a partial side view of the utility model;

[0017] Figure 3 This is the overall flow diagram of the refrigerant of the present invention. DETAILED DESCRIPTION

[0018] For example, see Figures 1 to 3As shown, a heat exchange assembly for a mobile air conditioner with a subcooling section in the middle position includes a front end plate 1, a rear end plate 2, a condensing heat exchange tube 3, and an evaporating heat exchange tube 4. The front and rear portions of the condensing heat exchange tube 3 and the evaporating heat exchange tube 4 are fixed to the front end plate 1 and the rear end plate 2, respectively. A plurality of heat dissipation fins 5 are fixed to the condensing heat exchange tube 3 and the evaporating heat exchange tube 4.

[0019] A subcooling tube 6 is provided between the condensing heat exchange tube 3 and the evaporating heat exchange tube 4. The front and rear portions of the subcooling tube 6 are respectively fixed to the front plate 1 and the rear plate 2. The subcooling tube 6 is coiled in an S shape and has a plurality of heat dissipation fins 5 fixed thereon.

[0020] The subcooling tube 6 is placed between the condensing heat exchange tube 3 and the evaporating heat exchange tube 4, so that the subcooling tube 6 is close to the evaporating heat exchange tube 4. The refrigerant flowing in the subcooling tube 6 can exchange heat with the evaporating heat exchange tube 4, thereby improving the cooling effect and cooling speed, thereby improving the subsequent refrigeration effect.

[0021] Furthermore, the condensing heat exchange tube 3 is located at the lower portion between the front end plate 1 and the rear end plate 2, the evaporating heat exchange tube 4 is located at the upper portion between the front end plate 1 and the rear end plate 2, and the subcooling tube 6 is located below the evaporating heat exchange tube 4 and above the condensing heat exchange tube 3;

[0022] The discharge port of the condensing heat exchange tube 3 is connected to the feed port of the subcooling tube 6 through the first connecting tube 7. The discharge port of the subcooling tube 6 is connected to the feed port of the capillary connecting tube 8. The discharge port of the capillary connecting tube 8 is connected to one end of the capillary tube 9. The discharge port of the capillary tube 9 is connected to the feed end of the three-way connecting tube 91. The two discharge ends of the three-way connecting tube 91 are connected to one end of the branch connecting tube 92. The other ends of the two branch connecting tubes 92 are connected to the two feed ports of the evaporating heat exchange tube 4. The middle part of the capillary tube 9 is annularly wound into a spring-wound shape. A filter mesh sleeve is fixed to the middle part of the capillary connecting tube 8, which filters the refrigerant flowing in the capillary connecting tube 8.

[0023] Furthermore, the evaporation heat exchange tube 4 includes two S-shaped coiled branch heat exchange tubes 41, the two branch heat exchange tubes 41 are arranged side by side up and down, and the discharge ports of the two branch connecting tubes 92 are connected to the feed ports of the two branch heat exchange tubes 41. The condensation heat exchange tube 3 includes three S-shaped coiled condensation branch heat exchange tubes 31, the three condensation branch heat exchange tubes 31 are arranged side by side up and down, the feed ports of the three condensation branch heat exchange tubes 31 are connected to the inlet pipe main part 10, and a feed port connecting pipe portion 101 is connected to a side wall of the inlet pipe main part 10. Three outlets are formed on the side wall of the inlet pipe main part 10, and the outlet and feed port connecting pipe portions 101 are connected to the inlet pipe main part 10. The feed ports of the three condensation branch heat exchange tubes 31 are welded and fixed to the side wall of the inlet pipe main part 10 and are connected to the corresponding outlets.

[0024] The discharge ports of the three condensation heat exchange tubes 31 are welded to the side wall of the same first connecting tube 7 and communicate with the side feed holes on the side wall of the first connecting tube 7 . The upper discharge port of the first connecting tube 7 is connected to the feed port of the supercooling tube 6 .

[0025] The discharge ports of the two heat exchange pipes 41 are connected to the same discharge connecting pipe 40 .

[0026] Two connecting through holes are formed on the side wall of the discharge connecting pipe 40, which are connected to the middle through hole of the discharge connecting pipe 40. One end of the middle through hole extends out of one end surface of the discharge connecting pipe 40. The discharge ports of the two sub-heat exchange pipes 41 are welded and fixed on the side wall of the discharge connecting pipe 40 and are connected to the corresponding connecting through holes.

[0027] The refrigerant circulates through the three condensing sub-heat exchange tubes 31, thereby increasing the circulation volume of the refrigerant. At the same time, it circulates from the three condensing sub-heat exchange tubes 31 through the capillary tube 9 to the two sub-heat exchange tubes 41. As the refrigerant changes from a gaseous state to a gas-liquid mixed state, its volume becomes smaller. From the three condensing sub-heat exchange tubes 31 to the two sub-heat exchange tubes 41, it can be ensured that the refrigerant always fills the entire condensing sub-heat exchange tubes 31 or the sub-heat exchange tubes 41 to ensure that it is in the maximum heat exchange effect, ensure the heat exchange efficiency and heat exchange effect, ensure the cooling effect, and also reduce space occupancy and reduce the materials required for manufacturing, thereby reducing manufacturing costs.

[0028] At the same time, the refrigerant flowing out of the three condensation sub-heat exchange tubes 31 first enters the sub-cooling tube 6 for centralized buffering, so that the refrigerant flowing out of the three condensation sub-heat exchange tubes 31 is evenly mixed in the sub-cooling tube 6 and then flows into the capillary tube 9, so that the temperature state of the flowing refrigerant is very uniform, ensuring its stable flow into the capillary tube 9 and ensuring stable throttling.

[0029] When this embodiment is in use, it is installed in the entire mobile air conditioner. The side wall of the inlet pipe main part 10 is connected to the feed port connecting pipe part 101 which is connected to the refrigerant discharge port of the compressor of the mobile air conditioner. One end of the middle through hole of the discharge connecting pipe 40 extends out of one end face of the discharge connecting pipe 40 and is connected to the refrigerant return port of the compressor. The whole principle is basically the same as the principle of the existing air conditioner and will not be described in detail.

[0030] Finally, the above embodiments are only used to illustrate the present invention, and are not intended 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 fall within the scope of the present invention, and the scope of patent protection of the present invention should be defined by the claims.

Claims

1. A heat exchange assembly for a mobile air conditioner with a subcooling section in the middle, comprising a front end plate (1), a rear end plate (2), a condensing heat exchange tube (3) and an evaporating heat exchange tube (4), characterized in that: The front and rear portions of the condensing heat exchange tube (3) and the evaporating heat exchange tube (4) are fixed to the front plate (1) and the rear plate (2), respectively, and a plurality of heat dissipation fins (5) are fixed to the condensing heat exchange tube (3) and the evaporating heat exchange tube (4); A subcooling tube (6) is provided between the condensing heat exchange tube (3) and the evaporating heat exchange tube (4), and the front and rear portions of the subcooling tube (6) are fixed to the front end plate (1) and the rear end plate (2), respectively.

2. The heat exchange assembly for a mobile air conditioner with a subcooling section in the middle according to claim 1, characterized in that: The condensing heat exchange tube (3) is located at the lower portion between the front end plate (1) and the rear end plate (2), the evaporating heat exchange tube (4) is located at the upper portion between the front end plate (1) and the rear end plate (2), and the subcooling tube (6) is located below the evaporating heat exchange tube (4) and at the upper portion of the condensing heat exchange tube (3); The discharge port of the condensing heat exchange tube (3) is connected to the feed port of the supercooling tube (6) through the first connecting tube (7), the discharge port of the supercooling tube (6) is connected to the feed port of the capillary connecting tube (8), the discharge port of the capillary connecting tube (8) is connected to one end of the capillary tube (9), the discharge port of the capillary tube (9) is connected to the feed end of the three-way connecting tube (91), the two discharge ends of the three-way connecting tube (91) are connected to one end of the branch connecting tube (92), and the other ends of the two branch connecting tubes (92) are connected to the two feed ports of the evaporating heat exchange tube (4).

3. The heat exchange assembly for a mobile air conditioner with a subcooling section in the middle according to claim 1, characterized in that: The evaporation heat exchange tube (4) comprises two S-shaped coiled sub-heat exchange tubes (41), the two sub-heat exchange tubes (41) are arranged side by side up and down, and the discharge ports of the two sub-connecting tubes (92) are connected to the feed ports of the two sub-heat exchange tubes (41).

4. The heat exchange assembly for a mobile air conditioner with a subcooling section in the middle according to claim 1, characterized in that: The condensation heat exchange tube (3) comprises three condensation sub-heat exchange tubes (31) coiled in an S-shape, the three condensation sub-heat exchange tubes (31) being arranged side by side up and down, the feed ports of the three condensation sub-heat exchange tubes (31) being connected to the inlet tube main part (10), a side wall of the inlet tube main part (10) being connected to a feed port connecting pipe part (101), three outlets being formed on the side wall of the inlet tube main part (10), the feed ports of the three condensation sub-heat exchange tubes (31) being welded and fixed on the side wall of the inlet tube main part (10) and being connected to the corresponding outlets.

5. The heat exchange assembly for a mobile air conditioner with a subcooling section in the middle according to claim 4, characterized in that: The discharge ports of the three condensation heat exchange tubes (31) are welded and fixed to the side wall of the same first connecting tube (7) and communicate with the side feed hole on the side wall of the first connecting tube (7). The upper end discharge port of the first connecting tube (7) is connected to the feed port of the supercooling tube (6).

6. The heat exchange assembly for a mobile air conditioner with a subcooling section in the middle according to claim 2, characterized in that: A filter screen sleeve is fixed in the middle of the capillary connecting tube (8).

7. The heat exchange assembly for a mobile air conditioner with a subcooling section in the middle according to claim 3, characterized in that: The discharge ports of the two heat exchange tubes (41) are connected to the same discharge connecting pipe (40).

8. The heat exchange assembly for a mobile air conditioner with a subcooling section in the middle according to claim 7, characterized in that: Two connecting through holes are formed on the side wall of the discharge connecting pipe (40), and the connecting through holes are communicated with the middle through hole of the discharge connecting pipe (40). One end of the middle through hole extends out of one end surface of the discharge connecting pipe (40). The discharge ports of the two heat exchange pipes (41) are welded and fixed on the side wall of the discharge connecting pipe (40) and communicate with the corresponding connecting through holes.

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