Cold and hot integrated heat exchanger and cold and hot box of air-cooled compressor

Abstract

The invention relates to a cold and hot integrated heat exchanger and a cold and warm box of an air-cooled compressor. The technical problem that in the prior art, design is not reasonable enough is solved. Comprising a heat exchanger body with a plurality of heat exchange fins on one side, a heat exchange base face is arranged on the side, away from the heat exchange fins, of the heat exchanger body, a pipeline installation groove is formed in the heat exchange base face, a refrigerant pipeline is arranged in the pipeline installation groove, and the two ends of the refrigerant pipeline extend to the outer side of the heat exchanger body respectively. A heating film making contact with the heat exchange base face and / or the refrigerant pipeline is arranged on the outer side of the heat exchanger body. The system has the advantages that a refrigerating system and a heating system are integrated, so that the process installation difficulty and the product cost are reduced; an internal air circulation mode is adopted, the inner wall of the box body can be prevented from frosting during refrigeration, the local temperature of the inner wall of the box body can be prevented from being too high during heating, and the temperature uniformity in the cold and warm box can be effectively improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of vehicle-mounted cooling and heating box equipment, and specifically relates to a cooling and heating box with an integrated cooling and heating heat exchanger and an air-cooled compressor. Background Art

[0002] At present, the vehicle-mounted compressor cooling and heating box usually separates the refrigeration system and the heating system. Heating is mainly achieved by mounting a heating film on the surface of the cooling and heating box; cooling is mainly achieved by the built-in compressor refrigeration evaporator of the cooling and heating box. At present, there are three main design schemes for the internal evaporator of the cooling and heating box on the market: 1. Wrap the evaporator pipe around the box liner of the compressor cooling and heating box; 2. Use a blown one-piece liner to integrate the evaporator pipe and the metal liner together; 3. Use a tubular evaporator and use a fan to bring the cold of the evaporator into the refrigerator box. In the first two schemes, when cooling, the winding pipe evaporator and the blown one-piece evaporator often cause frost on the inner wall of the box liner, and the load heat transfer speed is slow, and the effect is poor. In addition, the winding pipe evaporator is difficult to install, and the installation process has a great influence on the refrigeration performance; the blown one-piece evaporator is more expensive than the ordinary box liner. The tubular evaporator device is large in size, has many space layout restrictions, and is relatively difficult to install. Although the third solution can prevent frost on the inner wall of the box during cooling, since the refrigeration system and heating system are set separately, heating is mainly achieved by attaching a heating film on the surface of the cold and warm box body. This makes it easy for the local temperature of the inner wall of the box to be too high during heating. Summary of the invention

[0003] The object of the present invention is to provide a cold and hot integrated heat exchanger in view of the above problems.

[0004] Another object of the present invention is to provide an air-cooled compressor cooling and heating box to address the above-mentioned problems.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a cold and hot integrated heat exchanger, comprising a heat exchanger body with a plurality of heat exchange fins on one side, the side of the heat exchanger body away from the heat exchange fins is a heat exchange base surface, a pipe installation groove is provided in the heat exchange base surface and a refrigerant pipe is provided in the pipe installation groove, both ends of the refrigerant pipe extend to the outside of the heat exchanger body respectively, and a heating film in contact with the heat exchange base surface and / or the refrigerant pipe is provided on the outside of the heat exchanger body.

[0006] In the above-mentioned cold and hot integrated heat exchanger, the pipe installation grooves are distributed in a curved shape and both ends of the pipe installation grooves respectively pass through one side of the heat exchanger body.

[0007] In the above-mentioned integrated cold and hot heat exchanger, the refrigerant pipe is positioned in the pipe installation groove by welding or pressing, one side of the refrigerant pipe does not exceed the outside of the heat exchange base surface, and the shape of the other side of the refrigerant pipe is adapted to the pipe installation groove.

[0008] In the above-mentioned integrated cold and hot heat exchanger, the cross-section of the refrigerant pipe is D-shaped, one side of the refrigerant pipe has an arc-shaped heat exchange portion that is compatible with the pipe mounting groove, and the other side of the refrigerant pipe has a planar heat exchange portion, and the planar heat exchange portion is flush with the heat exchange base surface.

[0009] In the above-mentioned cold and hot integrated heat exchanger, the heating film is a film containing a resistance wire inside, and the film is arranged on the heat exchange base surface by bonding.

[0010] An air-cooled compressor heating and cooling box has the above-mentioned integrated cold and hot heat exchanger, including a refrigerator liner, a heat exchanger body is provided on one side of the refrigerator liner, a fin fan is correspondingly provided at one end of the heat exchanger body, a heating film is provided on the side of the heat exchanger body away from the refrigerator liner, and the refrigerant pipe in the heat exchanger body is connected to the compressor refrigeration component.

[0011] In the above-mentioned air-cooled compressor cooling and heating box, the compressor refrigeration assembly includes a compressor, the air intake of the compressor is connected to one end of the refrigerant pipeline, the exhaust port of the compressor is connected to the air inlet of the condenser, the exhaust port of the condenser is connected to a drying tube, and the drying tube is connected to the capillary end arranged at the other end of the refrigerant pipeline.

[0012] In the above-mentioned air-cooled compressor cooling and heating box, a heat dissipation fan is installed at the lower end of the condenser, and the condenser and the heat dissipation fan are both located above the compressor.

[0013] In the above-mentioned air-cooled compressor heating and cooling box, a duct rear cover is fixed on one side of the refrigerator inner tank, the fin fan is installed and fixed on the inner side of the duct rear cover, and the heat exchanger body is fixed on the outer side of the refrigerator inner tank and the duct rear cover is arranged on the heat exchanger body.

[0014] In the above-mentioned air-cooled compressor heating and cooling box, the upper end of the heat exchanger body is an air outlet and the lower end is an air inlet, and the air inlet and the air outlet are connected through a heat exchange channel formed between the heat exchange fins, and the fin fan is arranged at the lower end of the heat exchanger body and corresponds to the air inlet of the heat exchanger body. The upper end of one side of the refrigerator inner tank is provided with a first air duct hole connected to the refrigerator inner tank and located on the air outlet side of the heat exchanger body, a temperature sensor is provided between the first air duct hole and the air outlet, and the lower end of one side of the refrigerator inner tank is provided with a first air duct hole connected to the refrigerator inner tank and corresponding to the fin fan, and the air duct rear cover is provided on the first air duct hole and the second air duct hole.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] 1. The refrigerant pipe of the cold and hot integrated heat exchanger adopts a special structure, which can effectively increase the contact area between the refrigerant pipe and the fins, improve the heat transfer efficiency between the two, and at the same time can maximize the contact with the heating film to achieve the heat conduction effect;

[0017] 2. When the air-cooled compressor refrigerator needs to cool, the compressor works to cool the cold and hot integrated heat exchanger, and then the cold on the surface of the cold and hot integrated heat exchanger is brought into the refrigerator liner through the fin fan, thereby cooling the items in the refrigerator liner; when heating is needed, the compressor stops working, the heating film attached to the cold and hot integrated heat exchanger works to generate heat, and then the heat on the surface of the cold and hot integrated heat exchanger is brought into the refrigerator liner through the fin fan, thereby heating the items in the refrigerator liner;

[0018] 3. Compared with the common cooling and heating system separate cooling and heating box solutions on the market, this solution integrates the cooling and heating systems into one, reducing the difficulty of process installation and product cost;

[0019] 4. By adopting the form of internal air circulation, frost can be avoided on the inner wall of the box during cooling, and excessive temperature can be avoided on the inner wall of the box during heating, and the temperature uniformity inside the cooling and heating box can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural explosion diagram of the cold and hot integrated heat exchanger in the present invention.

[0021] Figure 2 It is a cross-sectional view of the refrigerant pipeline in the present invention.

[0022] Figure 3 It is a structural explosion diagram of the air-cooled compressor cooling and heating box of the present invention.

[0023] Figure 4 It is an assembly diagram of the air-cooled compressor cooling and heating box of the present invention (without the air duct rear cover).

[0024] In the figure: heat exchanger body 1, heat exchange fins 11, heat exchange base surface 12, pipeline installation groove 13, air outlet 14, air inlet 15, refrigerant pipeline 2, arc heat exchange part 21, plane heat exchange part 22, heating film 3, refrigerator liner 4, first air duct hole 41, second air duct hole 42, fin fan 5, compressor refrigeration assembly 6, compressor 61, condenser 62, drying tube 63, capillary end 64, heat dissipation fan 65, air duct rear cover 7, temperature sensor 8. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] like Figure 1-Figure 3 As shown, a cold and hot integrated heat exchanger includes a heat exchanger body 1 with a plurality of heat exchange fins 11 on one side, the side of the heat exchanger body 1 away from the heat exchange fins 11 is a heat exchange base surface 12, a pipe installation groove 13 is provided in the heat exchange base surface 12 and a refrigerant pipe 2 is provided in the pipe installation groove 13, both ends of the refrigerant pipe 2 extend to the outside of the heat exchanger body 1 respectively, and a heating film 3 in contact with the heat exchange base surface 12 and / or the refrigerant pipe 2 is provided on the outside of the heat exchanger body 1.

[0027] The refrigerant pipe 2 is connected to the compressor refrigeration equipment so that the heat exchanger body 1 can be used as a refrigeration heat exchanger. At the same time, since the heating film 3 is attached to the heat exchange base surface 12, the heat exchanger body 1 can be used as a heating heat exchanger.

[0028] Preferably, the pipe installation groove 13 is arranged in a curved shape and both ends of the pipe installation groove 13 respectively penetrate one side of the heat exchanger body 1. The refrigerant pipe 2 is positioned in the pipe installation groove 13 by welding, pressing or other methods, one side of the refrigerant pipe 2 does not exceed the outside of the heat exchange base surface 12, and the shape of the other side of the refrigerant pipe 2 is adapted to the pipe installation groove 13.

[0029] Furthermore, the cross section of the refrigerant pipe 2 is D-shaped, and one side of the refrigerant pipe 2 has an arc-shaped heat exchange portion 21 that matches the pipe installation groove 13, which can effectively increase the contact area between the refrigerant pipe 2 and the heat exchanger body 1 and improve the heat transfer efficiency between the two. The other side of the refrigerant pipe 2 has a flat heat exchange portion 22, and the flat heat exchange portion 22 is flush with the heat exchange base surface 12. In this way, the heating film can contact the outside of the refrigerant pipe 2 and the heat exchange base surface 12 at the same time.

[0030] The heating film 3 is a film containing a resistance wire inside, and the film is arranged on the heat exchange base surface 12 by bonding.

[0031] like Figure 1 as well as Figure 3-Figure 4As shown, the air-cooled compressor heating and cooling box in this embodiment includes a refrigerator liner 4, a heat exchanger body 1 is provided on one side of the refrigerator liner 4, a fin fan 5 is provided at one end of the heat exchanger body 1, a heating film 3 is provided on the side of the heat exchanger body 1 away from the refrigerator liner 4, and the refrigerant pipe 2 in the heat exchanger body 1 is connected to the compressor refrigeration assembly 6.

[0032] Among them, the compressor refrigeration assembly 6 includes a compressor 61, the air intake port of the compressor 61 is connected to one end of the refrigerant pipe 2, the exhaust port of the compressor 61 is connected to the air inlet of the condenser 62, the exhaust port of the condenser 62 is connected to a drying tube 63, and the drying tube 63 is connected to a capillary end 64 arranged at the other end of the refrigerant pipe 2.

[0033] That is, the exhaust port of the compressor 61 and the air inlet of the condenser 62 are connected by welding with a copper tube; the exhaust port of the condenser 62 and the drying tube 63 are connected by welding with a copper tube; the drying tube 63 and the capillary end 64 at one end of the refrigerant pipe 2 are connected by welding; the other end of the refrigerant pipe 2 and the air intake port of the compressor 61 are connected by welding with a copper tube.

[0034] Preferably, a heat dissipation fan 65 is installed at the lower end of the condenser 62. During actual installation, the heat dissipation fan 65 is first fixed to the condenser 62, and then the condenser 62 with the heat dissipation fan 65 is fixed to a suitable environmental component. The condenser 62 and the heat dissipation fan 65 are both located above the compressor 61, and the compressor 61 is fixed to a suitable environmental component through four bases.

[0035] Here, a duct rear cover 7 is fixed to one side of the refrigerator liner 4, a fin fan 5 is installed and fixed inside the duct rear cover 7, and a heat exchanger body 1 is fixed outside the refrigerator liner 4 and the duct rear cover 7 is covered on the heat exchanger body 1. The heating film 3 is attached to the heat exchange base surface 11 of the heat exchanger body 1, and then the heat exchanger body 1 is fixed to the refrigerator liner 4, the fin fan 5 is fixed to the duct rear cover 7, and then the duct rear cover 7 is fixed to the refrigerator liner 4.

[0036] The upper end of the heat exchanger body 1 is an air outlet 14 and the lower end is an air inlet 15, and the air inlet 15 and the air outlet 14 are connected through the heat exchange channel formed between the heat exchange fins 11, the fin fan 5 is arranged at the lower end of the heat exchanger body 1 and corresponds to the air inlet 15 of the heat exchanger body 1, the upper end of one side of the refrigerator liner 4 is provided with a first air duct hole 41 connected to the refrigerator liner 4 and located on the side of the air outlet 14 of the heat exchanger body 1, a temperature sensor 8 is arranged between the first air duct hole 41 and the air outlet 14, and the lower end of one side of the refrigerator liner 4 is provided with a second air duct hole 42 connected to the refrigerator liner 4 and corresponding to the fin fan 5, and the air duct rear cover 7 is arranged on the first air duct hole 41 and the second air duct hole 42. The temperature sensor 8 is arranged at the air outlet 14, and when the temperature at the air outlet 14 reaches the set temperature value, the cooling or heating power is reduced to ensure that the temperature in the box fluctuates within the allowable range.

[0037] The heat exchanger body 1 and the fin fan 5 are covered by the duct rear cover 7, and the duct rear cover 7 is tightly attached to the heat exchange base surface 11, so that a relatively closed heat exchange space is formed in the duct rear cover 7, and the heat exchange space exchanges heat with the inside of the refrigerator tank 4 through the fin fan 5.

[0038] The principle of this embodiment is:

[0039] When the air-cooled compressor heating and cooling box needs to be cooled, the compressor 61 works to cool the integrated cold and hot heat exchanger 2, and then blows the heat exchanger body 1 through the fin fan 5, and the wind brings the coldness on its surface into the refrigerator inner tank 4, thereby cooling the items in the refrigerator inner tank 4; when the air-cooled compressor heating and cooling box needs to be heated, the compressor 61 stops working, the heating film 3 attached to the heat exchanger body 1 works to generate heat, and then blows the heat exchanger body 1 through the fin fan 5, and the wind brings the heat on its surface into the refrigerator inner tank 4, thereby heating the items in the refrigerator inner tank 4.

[0040] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0041] Although the terms such as heat exchanger body 1, heat exchange fins 11, heat exchange base surface 12, pipeline installation groove 13, air outlet 14, air inlet 15, refrigerant pipeline 2, arc-shaped heat exchange part 21, plane heat exchange part 22, heating film 3, refrigerator liner 4, first air duct hole 41, second air duct hole 42, fin fan 5, compressor refrigeration assembly 6, compressor 61, condenser 62, drying tube 63, capillary end 64, heat dissipation fan 65, air duct rear cover 7, temperature sensor 8, etc. are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only for the purpose of more conveniently describing and explaining the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A cold and hot integrated heat exchanger, comprising a heat exchanger body (1) having a plurality of heat exchange fins (11) on one side, characterized in that: The side of the heat exchanger body (1) away from the heat exchange fins (11) is a heat exchange base surface (12), a pipe installation groove (13) is provided in the heat exchange base surface (12), and a refrigerant pipe (2) is provided in the pipe installation groove (13), and both ends of the refrigerant pipe (2) extend to the outside of the heat exchanger body (1), and a heating film (3) in contact with the heat exchange base surface (12) and / or the refrigerant pipe (2) is provided on the outside of the heat exchanger body (1).

2. The cold and hot integrated heat exchanger according to claim 1, characterized in that: The pipeline installation grooves (13) are arranged in a curved distribution, and both ends of the pipeline installation grooves (13) respectively penetrate one side of the heat exchanger body (1).

3. The cold and hot integrated heat exchanger according to claim 1, characterized in that: The refrigerant pipe (2) is positioned in the pipe installation groove (13) by welding or pressing, one side of the refrigerant pipe (2) does not extend beyond the outside of the heat exchange base surface (12), and the shape of the other side of the refrigerant pipe (2) is compatible with the pipe installation groove (13).

4. A cold and hot integrated heat exchanger according to claim 1, 2 or 3, characterized in that: The cross-section of the refrigerant pipe (2) is D-shaped, and one side of the refrigerant pipe (2) has an arc-shaped heat exchange portion (21) that is compatible with the pipe installation groove (13), and the other side of the refrigerant pipe (2) has a planar heat exchange portion (22), and the planar heat exchange portion (22) is flush with the heat exchange base surface (12).

5. The cold and hot integrated heat exchanger according to claim 4, characterized in that: The heating film (3) is a film containing a resistance wire inside, and the film is arranged on the heat exchange base surface (12) by bonding.

6. An air-cooled compressor cooling and heating box equipped with a cold and hot integrated heat exchanger as claimed in any one of claims 1 to 5, comprising a refrigerator liner (4), characterized in that: A heat exchanger body (1) is provided on one side of the refrigerator inner tank (4), a fin fan (5) is provided at one end of the heat exchanger body (1), a heating film (3) is provided on the side of the heat exchanger body (1) away from the refrigerator inner tank (4), and a refrigerant pipe (2) in the heat exchanger body (1) is connected to a compressor refrigeration assembly (6).

7. The air-cooled compressor cooling and heating box according to claim 6, characterized in that: The compressor refrigeration assembly (6) includes a compressor (61), the air intake of the compressor (61) is connected to one end of the refrigerant pipe (2), the air exhaust of the compressor (61) is connected to the air inlet of the condenser (62), the air exhaust of the condenser (62) is connected to a drying tube (63), and the drying tube (63) is connected to a capillary end (64) arranged at the other end of the refrigerant pipe (2).

8. The air-cooled compressor cooling and heating box according to claim 6, characterized in that: A heat dissipation fan (65) is installed at the lower end of the condenser (62), and the condenser (62) and the heat dissipation fan (65) are both located above the compressor (61).

9. The air-cooled compressor cooling and heating box according to claim 6, characterized in that: A duct rear cover (7) is fixed on one side of the refrigerator inner tank (4), the fin fan (5) is installed and fixed on the inner side of the duct rear cover (7), and the heat exchanger body (1) is fixed on the outer side of the refrigerator inner tank (4) and the duct rear cover (7) is covered on the heat exchanger body (1).

10. The air-cooled compressor cooling and heating box according to claim 9, characterized in that: The upper end of the heat exchanger body (1) is an air outlet (14) and the lower end is an air inlet (15), and the air inlet (15) and the air outlet (14) are connected through a heat exchange channel formed between the heat exchange fins (11); the fin fan (5) is arranged at the lower end of the heat exchanger body (1) and corresponds to the air inlet (15) of the heat exchanger body (1); the upper end of one side of the refrigerator liner (4) is provided with a first air duct hole (41) which is connected to the refrigerator liner (4) and is located on the side of the air outlet (14) of the heat exchanger body (1); a temperature sensor (8) is arranged between the first air duct hole (41) and the air outlet (14); and the lower end of one side of the refrigerator liner (4) is provided with a second air duct hole (42) which is connected to the refrigerator liner (4) and corresponds to the fin fan (5); and the air duct rear cover (7) is arranged on the first air duct hole (41) and the second air duct hole (42).

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