Heat exchanger

Abstract

The utility model provides a heat exchanger which comprises a heat exchange body with an inner cavity, the heat exchange body is provided with a first inlet, a first outlet, a second inlet and a second outlet, the first inlet and the first outlet are used for allowing refrigerants to enter and exit, the second inlet and the second outlet are used for allowing cooling liquid to enter and exit, and partition plates are arranged in the inner cavity and divide the inner cavity into a liquid storage area, a first heat exchange area and a second heat exchange area. A plurality of first runners a for refrigerant circulation and a plurality of second runners a for cooling liquid circulation are arranged in the first heat exchange area, the first runners a and the second runners a are mutually isolated, a plurality of first runners b for refrigerant circulation and a plurality of second runners b for cooling liquid circulation are arranged in the second heat exchange area, and the first runners b and the second runners b are mutually isolated. According to the heat exchanger, mutual integration of the condenser and the liquid storage tank is achieved, an intermediate heat exchanger is reduced, the size of an automobile air conditioning system is reduced, miniaturization development of the automobile air conditioning system is facilitated, meanwhile, arrangement of a pipeline between the condenser and the liquid storage tank is avoided, heat loss is reduced, and the heat exchange efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile air-conditioning systems, and in particular to a heat exchanger. Background Art

[0002] Automobile air conditioning systems usually include a compressor, a condenser, a liquid storage tank, an expansion valve and an evaporator. During the heat release process of the refrigerant, that is, the refrigerant changes from gas to liquid in the condenser, the liquid refrigerant enters the liquid storage tank for storage, and then enters the expansion valve from the liquid storage tank. In order to improve the heat exchange performance of the refrigerant during the heat release process, an intermediate heat exchanger is usually added between the liquid storage tank and the expansion valve. The refrigerant flowing out of the liquid storage tank flows through the intermediate heat exchanger and enters the expansion valve. That is, the intermediate heat exchanger further reduces the temperature of the refrigerant to reduce the coldness of the refrigerant. At present, the above-mentioned intermediate heat exchanger and the liquid storage tank on the market are separately arranged, and the two are connected by a pipeline. As a result, the automobile air conditioning system is large in size, which is not conducive to the development of miniaturization of automobile air conditioning systems, and the pipeline also has the problem of heat loss, which reduces the heat exchange efficiency. Utility Model Content

[0003] The utility model provides a heat exchanger to overcome the above defects of the prior art.

[0004] The utility model provides a heat exchanger, comprising a heat exchange main body with an inner cavity, the heat exchange main body is provided with a first inlet and a first outlet for refrigerant to enter and exit, a second inlet and a second outlet for cooling liquid to enter and exit, a partition plate is provided in the inner cavity, and is used to separate the inner cavity into a liquid storage area, a first heat exchange area and a second heat exchange area, the liquid storage area is used to store refrigerant, the first heat exchange area is used for heat exchange between the refrigerant and the cooling liquid before flowing into the liquid storage area, and the second heat exchange area is used for heat exchange between the refrigerant and the cooling liquid after flowing out of the liquid storage area; a plurality of first a flow channels for refrigerant to circulate are provided in the first heat exchange area, the inlet end of the first a flow channel is connected to the first inlet, and the outlet end of the first a flow channel is connected to the inlet end of the liquid storage area end is connected; a plurality of first b flow channels for circulation of refrigerant are provided in the second heat exchange zone, the inlet end of the first b flow channel is connected to the liquid outlet end of the liquid storage zone, and the outlet end of the first b flow channel is connected to the first outlet; a plurality of second a flow channels for circulation of cooling liquid are provided in the first heat exchange zone, the inlet end of the second a flow channel is connected to the second inlet, and the outlet end of the second a flow channel is connected to the second outlet; a plurality of second b flow channels for circulation of cooling liquid are provided in the second heat exchange zone, and the second b flow channels are connected to the second a flow channels; the first a flow channels and the second a flow channels in the first heat exchange zone are not connected, isolated, and staggered, and the first b flow channels and the second b flow channels in the second heat exchange zone are not connected, isolated, and staggered.

[0005] Compared with the prior art, the heat exchanger of the present application has the following advantages: by setting a partition in the inner cavity of the heat exchange body, the inner cavity is divided into a liquid storage area, a first heat exchange area and a second heat exchange area; the liquid storage area is used to store refrigerant; the first heat exchange area is used for heat exchange between the refrigerant and the coolant before flowing into the liquid storage area; the second heat exchange area is used for heat exchange between the refrigerant and the coolant after flowing out of the liquid storage area; the first a flow channel and the second a flow channel in the first heat exchange area are not connected, isolated and staggered; the first b flow channel and the second b flow channel in the second heat exchange area are not connected, isolated and staggered, thereby realizing the mutual integration of the condenser and the liquid storage tank and reducing the arrangement of the intermediate heat exchanger, thereby reducing the volume of the automobile air-conditioning system, facilitating the miniaturization of the automobile air-conditioning system, and avoiding the arrangement of a pipeline between the condenser and the liquid storage tank, reducing heat loss and improving heat exchange efficiency.

[0006] In a possible embodiment, the first a flow channel and the second a flow channel in the first heat exchange zone are arranged parallel to each other, and the flow direction of the refrigerant in the first a flow channel is opposite to the flow direction of the coolant in the second a flow channel; the first b flow channel and the second b flow channel are arranged parallel to each other, and the flow direction of the refrigerant in the first b flow channel is opposite to the flow direction of the coolant in the second b flow channel.

[0007] Compared with the prior art, the above technical solution can further improve the heat exchange efficiency of the refrigerant in the first heat exchange zone and the second heat exchange zone.

[0008] In a possible implementation manner, the height of the liquid inlet end of the liquid storage area is higher than the height of the liquid outlet end of the liquid storage area.

[0009] Compared with the prior art, the above technical solution can realize the storage of liquid refrigerant in the liquid storage area.

[0010] In a possible embodiment, the heat exchange body includes a top plate and a bottom plate, and the partition plate includes a first partition plate and a second partition plate located below the first partition plate, the top plate is located above the first partition plate, and the bottom plate is located below the second partition plate, and a plurality of first plates spaced apart from each other up and down are fixedly connected between the bottom plate and the second partition plate, and two adjacent first plates form the first a flow channel and the second a flow channel, and the first a flow channel and the second a flow channel are staggered and separated up and down; a plurality of second plates spaced apart from each other up and down are fixedly connected between the first partition plate and the second partition plate, and two adjacent second plates form the first b flow channel and the second b flow channel, and the first b flow channel and the second b flow channel are staggered and separated up and down; a plurality of third plates spaced apart from each other up and down are fixedly connected between the top plate and the first partition plate, and two adjacent third plates form a liquid storage cavity, and an opening is provided on the third plate for connecting the plurality of liquid storage cavities.

[0011] Compared with the prior art, the above technical solution can realize heat exchange between the refrigerant in the first heat exchange zone and the second heat exchange zone, and improve the structural compactness of the heat exchanger.

[0012] In a possible embodiment, the first inlet and the first outlet are both arranged on the bottom plate, and the second plate is provided with a first channel, the two ends of the first channel are respectively connected with the outlet end of the first a flow channel and the liquid inlet end of the liquid storage area, and the first channel is isolated from the first b flow channel and the second b flow channel; the first plate is provided with a second channel, the two ends of the second channel are respectively connected with the outlet end of the first b flow channel and the first outlet, and the second channel is isolated from the first a flow channel and the second a flow channel.

[0013] Compared with the prior art, the above technical solution can connect the outlet end of the first a flow channel with the liquid inlet end of the liquid storage area, and connect the outlet end of the first b flow channel with the first outlet, making the structure of the heat exchange main body compact; at the same time, it is beneficial for the refrigerant to enter and exit on the same side, facilitating the use of the heat exchanger.

[0014] In a possible implementation manner, the second inlet and the second outlet are both arranged on the bottom plate.

[0015] Compared with the prior art, the above technical solution enables the coolant to enter and exit on the same side, making it easier to use the heat exchanger.

[0016] In a possible implementation manner, a fixing installation hole is provided on the bottom plate.

[0017] Compared with the prior art, the above technical solution can facilitate the installation of the heat exchange main body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 The cross section of the utility model Figure 1 ;

[0020] Figure 3 is a schematic diagram of the flow path of the refrigerant;

[0021] Figure 4 The cross section of the utility model Figure 2 ;

[0022] Figure 5 is a schematic diagram of the flow path of the coolant;

[0023] Description of reference numerals:

[0024] 1. Heat exchange body; 11. Top plate; 12. Bottom plate; 121. Fixed mounting hole; 13. First plate; 14. Second plate; 15. Third plate; 151. Opening; 2. First inlet; 3. First outlet; 4. Second inlet; 5. Second outlet; 6. Partition plate; 61. First partition plate; 62. Second partition plate; 7. Liquid storage area; 71. Liquid storage cavity; 72. Liquid inlet end; 73. Liquid outlet end; 8. First heat exchange area; 81. First a flow channel; 82. Second a flow channel; 9. Second heat exchange area; 91. First b flow channel; 92. Second b flow channel; 10. First channel; 20. Second channel. DETAILED DESCRIPTION

[0025] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0026] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0027] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0028] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] See also Figures 1 to 5The embodiment of the present application discloses a heat exchanger, including a heat exchange body 1, the heat exchange body 1 includes a top plate 11, a bottom plate 12 and a partition plate 6, the partition plate 6 includes a first partition plate 61 and a second partition plate 62 located below the first partition plate 61, the top plate 11 is located above the first partition plate 61, the bottom plate 12 is located below the second partition plate 62, a plurality of first plates 13 arranged at intervals up and down are fixedly welded between the bottom plate 12 and the second partition plate 62, a plurality of second plates 14 arranged at intervals up and down are fixedly welded between the first partition plate 61 and the second partition plate 62, a plurality of third plates 15 arranged at intervals up and down are fixedly welded between the top plate 11 and the first partition plate 61; the top plate 11, the third plate 15 and the top surface of the first partition plate 61 jointly form a liquid storage area 7; the bottom plate 12, the first plate 13 and the bottom surface of the second partition plate 62 jointly form a first heat exchange area 8; the bottom surface of the first partition plate 61, the second plate 14 and the top surface of the second partition plate 62 jointly form a second heat exchange area 9. The bottom plate 12 has a first inlet 2 and a first outlet 3 for the refrigerant to enter and exit, and a second inlet 4 and a second outlet 5 for the cooling liquid to enter and exit.

[0030] Specifically, two adjacent first plates 13 form a first a flow channel 81 and a second a flow channel 82, the first a flow channel 81 and the second a flow channel 82 are staggered and separated up and down, and the first a flow channel 81 and the second a flow channel 82 are parallel to each other; two adjacent second plates 14 form a first b flow channel 91 and a second b flow channel 92, the first b flow channel 91 and the second b flow channel 92 are staggered and separated up and down, and the first b flow channel 91 and the second b flow channel 92 are parallel to each other; two adjacent third plates 15 form a liquid storage cavity 71, and the third plate 15 is provided with an opening 151 for connecting multiple liquid storage cavities 71.

[0031] A first channel 10 is provided on the second plate 14, and the two ends of the first channel 10 are respectively connected to the outlet end of the first a flow channel 81 and the liquid inlet end 72 of the liquid storage area 7, and the first channel 10 is isolated from the first b flow channel 91 and the second b flow channel 92; a second channel 20 is provided on the first plate 13, and the two ends of the second channel 20 are respectively connected to the outlet end of the first b flow channel 91 and the first outlet 3, and the second channel 20 is isolated from the first a flow channel 81 and the second a flow channel 82.

[0032] The liquid inlet end 72 of the liquid storage area 7 is connected to the first channel 10, and the liquid outlet end 73 of the liquid storage area 7 is connected to the first b flow channel 91; the height of the liquid inlet end 72 of the liquid storage area 7 is higher than the height of the liquid outlet end 73 of the liquid storage area 7.

[0033] Continue to see Figure 1In this embodiment, a fixing installation hole 121 is provided on the bottom plate 12, thereby facilitating the installation of the heat exchange body 1.

[0034] See also Figure 2 and Figure 3 The first inlet 2 is connected to the inlet end of the first a flow channel 81, the outlet end of the first a flow channel 81 is connected to the inlet end of the first channel 10, the outlet end of the first channel 10 is connected to the liquid inlet end 72 of the liquid storage area 7, the liquid outlet end 73 of the liquid storage area 7 is connected to the inlet end of the first b flow channel 91, the outlet end of the first b flow channel 91 is connected to the inlet end of the second channel 20, and the outlet end of the second channel 20 is connected to the first outlet 3, that is, the flow path of the refrigerant is: the first inlet 2, the first a flow channel 81, the first channel 10, the liquid storage chamber 71, the first b flow channel 91, the second channel 20, and the first outlet 3.

[0035] See also Figure 4 and Figure 5 The second inlet 4 is connected to the inlet end of the second a flow channel 82 and the inlet end of the second b flow channel 92, and the outlet end of the second a flow channel 82 and the outlet end of the second b flow channel 92 are both connected to the second outlet 5, that is, the flow path of the coolant is: the second inlet 4, the second a flow channel 82 and the second b flow channel 92, and the second outlet 5.

[0036] The refrigerant flow direction in the first a flow channel 81 is opposite to the coolant flow direction in the second a flow channel 82 ; the refrigerant flow direction in the first b flow channel 91 is opposite to the coolant flow direction in the second b flow channel 92 .

[0037] In the description of the embodiments of the present application, it should be noted that in the description of the present application, terms such as "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description, and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present application.

[0038] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "in the present embodiment", "specific example", or "some examples" etc. means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0039] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A heat exchanger, characterized in that: The heat exchanger comprises a heat exchange body (1) having an inner cavity, wherein the heat exchange body (1) is provided with a first inlet (2) and a first outlet (3) for refrigerant to enter and exit, and a second inlet (4) and a second outlet (5) for cooling liquid to enter and exit. A partition plate (6) is provided in the inner cavity and is used to divide the inner cavity into a liquid storage area (7), a first heat exchange area (8) and a second heat exchange area (9). The liquid storage area (7) is used to store refrigerant, the first heat exchange area (8) is used for heat exchange between the refrigerant and the cooling liquid before the refrigerant flows into the liquid storage area (7), and the second heat exchange area (9) is used for heat exchange between the refrigerant and the cooling liquid after the refrigerant flows out of the liquid storage area (7). The first heat exchange zone (8) is provided with a plurality of first a flow channels (81) for circulation of refrigerant, the inlet end of the first a flow channel (81) is connected to the first inlet (2), and the outlet end of the first a flow channel (81) is connected to the liquid inlet end (72) of the liquid storage zone (7); the second heat exchange zone (9) is provided with a plurality of first b flow channels (91) for circulation of refrigerant, the inlet end of the first b flow channel (91) is connected to the liquid outlet end (73) of the liquid storage zone (7), and the outlet end of the first b flow channel (91) is connected to the first outlet (3); the first heat exchange zone (8) is provided with a plurality of second a flow channels (82) for circulation of cooling liquid, the inlet end of the second a flow channel (82) is connected to the second inlet (4), and the outlet end of the second a flow channel (82) is connected to the second outlet (5); the second heat exchange zone (9) is provided with a plurality of second b flow channels (92) for circulation of cooling liquid, and the second b flow channels (92) are connected to the second a flow channels (82); The first a flow channel (81) and the second a flow channel (82) in the first heat exchange zone (8) are isolated from each other and are arranged in an interlaced manner, and the first b flow channel (91) and the second b flow channel (92) in the second heat exchange zone (9) are isolated from each other and are arranged in an interlaced manner.

2. The heat exchanger according to claim 1, characterized in that The first a flow channel (81) and the second a flow channel (82) in the first heat exchange zone (8) are arranged parallel to each other, and the flow direction of the refrigerant in the first a flow channel (81) is opposite to the flow direction of the coolant in the second a flow channel (82); the first b flow channel (91) and the second b flow channel (92) are arranged parallel to each other, and the flow direction of the refrigerant in the first b flow channel (91) is opposite to the flow direction of the coolant in the second b flow channel (92).

3. The heat exchanger according to claim 1, characterized in that The height of the liquid inlet end (72) of the liquid storage area (7) is higher than the height of the liquid outlet end (73) of the liquid storage area (7).

4. The heat exchanger according to any one of claims 1 to 3, characterized in that: The heat exchange body (1) comprises a top plate (11) and a bottom plate (12); the partition plate (6) comprises a first partition plate (61) and a second partition plate (62) located below the first partition plate (61); the top plate (11) is located above the first partition plate (61); the bottom plate (12) is located below the second partition plate (62); a plurality of first plates (13) arranged at intervals up and down are fixedly connected between the bottom plate (12) and the second partition plate (62); two adjacent first plates (13) are formed with the first a flow channel (81) and the second a flow channel (82); the first a flow channel (81) and the second a flow channel (82) are staggered up and down. A plurality of second plates (14) spaced apart from each other are fixedly connected between the first partition plate (61) and the second partition plate (62), and two adjacent second plates (14) form the first b flow channel (91) and the second b flow channel (92), and the first b flow channel (91) and the second b flow channel (92) are staggered and separated from each other up and down; a plurality of third plates (15) spaced apart from each other are fixedly connected between the top plate (11) and the first partition plate (61), and two adjacent third plates (15) form a liquid storage cavity (71), and an opening (151) is provided on the third plate (15) for connecting the plurality of liquid storage cavities (71).

5. The heat exchanger according to claim 4, characterized in that The first inlet (2) and the first outlet (3) are both arranged on the bottom plate (12); the second plate (14) is provided with a first channel (10); the two ends of the first channel (10) are respectively connected to the outlet end of the first a flow channel (81) and the liquid inlet end (72) of the liquid storage area (7); the first channel (10) is isolated from the first b flow channel (91) and the second b flow channel (92); the first plate (13) is provided with a second channel (20); the two ends of the second channel (20) are respectively connected to the outlet end of the first b flow channel (91) and the first outlet (3); the second channel (20) is isolated from the first a flow channel (81) and the second a flow channel (82).

6. The heat exchanger according to claim 4, characterized in that The second inlet (4) and the second outlet (5) are both arranged on the bottom plate (12).

7. The heat exchanger according to claim 4, characterized in that The bottom plate (12) is provided with a fixing installation hole (121).

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