Heat exchanger

Abstract

The application discloses a heat exchange device, which comprises a core body and a shell. The core body comprises two collecting components and a flat tube component. The flat tube component comprises a first flat tube group and a second flat tube group, both of which comprise a plurality of flat tubes. The two ends of the flat tubes are connected with the first and second collecting components respectively. The two ends of the shell are fixedly connected with the first and second collecting components respectively. The flat tube component is located in the shell. The shell and the core body form a cooling liquid flowing space. The collecting cavity of the second collecting component has two or more collecting flow channels which are arranged in parallel and are communicated with each other. The first collecting component comprises a first collecting part and a second collecting part. The first and second collecting parts are provided with a partition plate. Each flat tube of the first flat tube group is communicated with the collecting cavity of the first collecting part. Each flat tube of the second flat tube group is communicated with the collecting cavity of the second collecting part. The collecting cavity of the first collecting part is communicated with the collecting cavity of the second collecting part through the first flat tube group, the collecting cavity of the second collecting component and the second flat tube group. The heat exchange device has high pressure bearing capacity and compact structure.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat exchange, in particular to a heat exchange device. BACKGROUND

[0002] With the enhancement of environmental awareness, the selection of environmentally friendly refrigerants for vehicle air conditioning systems has become a development trend in the industry. Among them, CO2 as a refrigerant has the advantages of low price and environmental protection, and can replace general refrigerants.

[0003] The air conditioning system using CO2 as a refrigerant has a higher working pressure, and generally needs to increase the thickness of the parts of the heat exchange device to enhance the pressure resistance of the heat exchange device. However, the weight of the heat exchange device also increases, and the size also increases, which increases the difficulty of space layout of automobile parts.

[0004] Therefore, how to provide a heat exchange device that meets the heat exchange requirements, has high pressure resistance and compact structure is a technical problem that needs to be solved by those skilled in the art at present. SUMMARY

[0005] The purpose of the present application is to provide a heat exchange device with high pressure resistance and compact structure.

[0006] The present application provides a heat exchange device, comprising a core and a shell, the core comprising a first flow collecting component and a second flow collecting component arranged opposite to each other, and a flat tube component arranged between the first flow collecting component and the second flow collecting component.

[0007] The flat tube component comprises a first flat tube group and a second flat tube group, and each of the first flat tube group and the second flat tube group comprises a plurality of flat tubes, and the two ends of each flat tube are respectively connected to the first flow collecting component and the second flow collecting component.

[0008] The flat tube component is located in the shell, and a cooling liquid flow space is formed between the shell and the core.

[0009] The second flow collecting component has a flow collecting cavity, and the flow collecting cavity of the second flow collecting component has two or more flow collecting flow channels arranged side by side and connected to each other.

[0010] The first current collecting component has current collecting cavities, and comprises a first current collecting part and a second current collecting part, and a partition is arranged between the first current collecting part and the second current collecting part; the plurality of flat tubes of the first flat tube group are stacked along the width direction of the first current collecting component, and each flat tube is in communication with the current collecting cavity of the first current collecting part; the plurality of flat tubes of the second flat tube group are stacked along the width direction of the first current collecting component, and each flat tube is in communication with the current collecting cavity of the second current collecting part; the current collecting cavity of the first current collecting part is in communication with the current collecting cavity of the second current collecting part through the first flat tube group, the current collecting cavity of the second current collecting component and the second flat tube group.

[0011] Since the current collecting cavity of the second current collecting component is designed in the form of two or more parallel arranged and mutually communicated current collecting flow channels, and the first current collecting component is designed in the form of comprising two parallel arranged and mutually not communicated current collecting parts, thus the wall part forming each current collecting flow channel is used to bear pressure, for the same size of current collecting component, the pressure bearing capacity can be improved, and the first current collecting part is in communication with the second current collecting part through the first flat tube group, the second current collecting component and the second flat tube group, the flow of CO2 can be improved, thus the heat exchange performance is improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 A structure schematic view of a specific embodiment of the heat exchange device provided by the present application;

[0013] Figure 2 A structure schematic view of a specific embodiment of the heat exchange device provided by the present application; Figure 1 An explosion view of the heat exchange device shown in the figure;

[0014] Figure 3 A structure schematic view of the internal structure of the flat tube component and the current collecting component after being connected in the specific embodiment;

[0015] Figure 4 A structure schematic view of the internal structure of the flat tube component and the current collecting component after being connected in the specific embodiment; Figure 1 A structure schematic view of the core of the heat exchange device shown in the figure, and the arrow mark indicates the flow direction of the refrigerant;

[0016] Figure 4A A structure schematic view of the core of the heat exchange device shown in the figure, and the arrow mark indicates the flow direction of the cooling liquid; Figure 1

[0017] A structure schematic view of the flat tube in the specific embodiment. Figure 5 Explanation of reference signs:

[0018] Core 100, first fluid interface 100a, second fluid interface 100b;

[0019]

[0020] ​First current collector 110a, second current collector 110b, first wall panel 111, second wall panel 112, insertion hole 1121, side plate 113, first end plate 114a, second end plate 114b, slot 115, current collection channel 1101;

[0021] First flat tube group 120a, second flat tube group 120b, flat tube 121, flow hole 1211;

[0022] Housing 200, coolant inlet 210;

[0023] First interface socket 310, first connector socket 311, first adapter socket 312, second interface socket 320, second connector socket 321, second adapter socket 322;

[0024] First coolant connector component 410, first connector seat 411, first connector 412, second coolant connector component 420, second connector seat 421, second connector 422;

[0025] 500 baffle plate. Detailed Implementation

[0026] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Please refer to Figures 1 to 4 , Figure 1 This is a schematic diagram of a specific embodiment of the heat exchange device provided by the present invention. Figure 2 for Figure 1 Exploded view of the heat exchange device shown; Figure 3 A schematic diagram of the internal structure of the flat tube component and the current collection component after connection is shown in a specific embodiment; Figure 4 for Figure 1 A schematic diagram of the core structure of the heat exchange device shown.

[0028] In this embodiment, the heat exchange device includes a core 100 and a shell 200.

[0029] The core 100 includes two current collectors arranged in parallel, with a flat tube component between the two current collectors; for ease of description and understanding, the two current collectors will be referred to as the first current collector 110a and the second current collector 110b, respectively.

[0030] The flat tube component includes multiple flat tubes 121, with each flat tube 121 having its two ends connected to the first current collector 110a and the second current collector 110b, respectively.

[0031] The shell 200 is sleeved on the core 100, specifically, two ends of the shell 200 are fixedly connected with the first and second collecting members 110a and 110b respectively, the flat tube member is located inside the shell 200, and a cooling liquid flowing space is formed between the shell 200 and the core 100; it can be understood that the cooling liquid flowing space is actually a space formed between the shell 200 and the flat tube 121.

[0032] The flow channel inside the flat tube 121 of the core 100 is a refrigerant flowing space.

[0033] The first collecting member 110a has a collecting cavity, and the first collecting member 110a includes a first collecting part and a second collecting part, and a partition plate is arranged between the first collecting part and the second collecting part, so that the collecting cavity of the first collecting part and the collecting cavity of the second collecting part are not communicated with each other; a part of the flat tube 121 of the flat tube member can communicate the collecting cavity of the first collecting part and the collecting cavity of the second collecting member 110b, and another part of the flat tube 121 of the flat tube member can communicate the collecting cavity of the second collecting part and the collecting cavity of the second collecting member 110b; that is, the collecting cavity of the first collecting part can be communicated through a part of the flat tube 121, the collecting cavity of the second collecting member 110b, and another part of the flat tube 121 and the collecting cavity of the second collecting part.

[0034] The second collecting member 110b has a collecting cavity, and the collecting cavity of the second collecting member 110b has two or more collecting flow channels 1101 arranged side by side and communicated with each other.

[0035] As described above, in the heat exchange device, the collecting cavity of the second collecting member 110b is designed in the form of two or more collecting flow channels 1101 arranged side by side and communicated with each other, and the first collecting member 110a is designed in the form of including two collecting parts arranged side by side and not communicated with each other, so that the wall part forming each collecting flow channel 1101 is used to bear pressure, and for the same size of collecting member, the pressure bearing capacity can be improved, and the first collecting part is communicated with the second collecting part through the flat tube 121 corresponding to the first collecting part, the second collecting member, and the flat tube 121 corresponding to the second collecting part and the second collecting part, so that the flow of the refrigerant such as CO2 can be improved, thereby helping to improve the heat exchange performance. The main body part structures of the first collecting member 110a and the second collecting member 110b are basically the same, for the sake of description, the same structure parts of the two will be uniformly described below, and the differences between the two will be described separately.

[0036] In a specific scheme, the collecting member includes a main body member, a first end plate 114a and a second end plate 114b, the collecting cavity of the collecting member is located in the main body member, and the first end plate 114a and the second end plate 114b cover two ends of the collecting cavity of the collecting member.

[0037] For the sake of description, reference is made to Figure 2, the X-axis direction of the graph is defined as the length direction of the current collecting component, and the Z-axis direction is defined as the width direction of the current collecting component.

[0038] Specifically, the main body component includes a first wall plate part 111, a second wall plate part 112, and two side plate parts 113; the first wall plate part 111 and the second wall plate part 112 are oppositely arranged, and the two ends of the first wall plate part 111 and the second wall plate part 112 are connected by the two side plate parts 113, so that the first wall plate part 111, the second wall plate part 112, and the two side plate parts 113 form the main body component of the current collecting component. In the width direction of the current collecting component, the two ends of the main body component are open, and the first end plate 114a and the second end plate 114b are used to block the two end openings of the main body component.

[0039] In this scheme, the first wall plate part 111 is relatively far away from the flat tube 121, and the second wall plate part 112 is relatively close to the flat tube 121.

[0040] In this embodiment, for the first current collecting component 110a, the inner wall of the first wall plate part 111 is provided with a partition plate extending towards the second wall plate part 112 and abutting against the second wall plate part 112, which divides the first current collecting component 110a into the aforementioned first current collecting part and the second current collecting part. It can be understood that in actual installation, the partition plate can be an integral structure with the main body component of the first current collecting component 110a, or the partition plate can be separately provided and then fixedly connected with the main body component of the first current collecting component 110a.

[0041] In this embodiment, for the second current collecting component 110b, the inner wall of the first wall plate part 111 is provided with at least one baffle plate extending towards the second wall plate part 112, which divides the current collecting cavity of the second current collecting component 110b into two or more parallel arranged and mutually connected current collecting flow channels 1101.

[0042] In the illustrated scheme, the axis of each current collecting flow channel 1101 of the second current collecting component 110b is arranged perpendicular to the length direction of the second current collecting component 110b, that is, each current collecting flow channel 1101 of the second current collecting component 110b is arranged along the length direction of the second current collecting component 110b. It can be understood that correspondingly, each baffle plate is also arranged along the length direction of the second current collecting component 110b, so that the axis of the current collecting flow channel 1101 formed by the partition is perpendicular to the length direction of the second current collecting component 110b. It can also be understood that in actual installation, the axis of each current collecting flow channel 1101 of the second current collecting component 110b can also not be perpendicular to the length direction of the second current collecting component 110b.

[0043] In a further scheme, the flow collection cavity of the first flow collection part 110a has two or more flow collection channels 1101 arranged side by side and in communication with each other, and the flow collection cavity of the second flow collection part 110a has two or more flow collection channels 1101 arranged side by side and in communication with each other.

[0044] Specifically, the inner wall of the first wall plate part 111 of the first flow collection part 110a is provided with at least one baffle extending towards the second wall plate part 112 at a position corresponding to the first flow collection part, so as to divide the flow collection cavity of the first flow collection part into two or more flow collection channels 1101 by the baffle; similarly, the inner wall of the first wall plate part 111 of the first flow collection part 110a is also provided with at least one baffle extending towards the second wall plate part 112 at a position corresponding to the second flow collection part, so as to divide the flow collection cavity of the second flow collection part into two or more flow collection channels 1101 by the baffle.

[0045] In the illustrated scheme, the axis of each flow collection channel 1101 of the first flow collection part 110a is also arranged perpendicular to the length direction of the first flow collection part 110a, of course, in actual arrangement, the axis of each flow collection channel 1101 of the first flow collection part 110a can also be arranged not perpendicular to the length direction of the first flow collection part 110a.

[0046] The second wall plate part 112 of the flow collection part has a plurality of insertion holes 1121 adapted to the flat tubes 121, specifically, the two ends of the flat tube 121 are respectively inserted into two second wall plate parts 112 of two flow collection parts, so that the flat tube 121 communicates the flow collection cavities of the two flow collection parts.

[0047] In a specific scheme, in order to ensure the communication of each flow collection channel 1101, the baffle can be kept a certain distance from the second wall plate part 112 as a whole, of course, a slot structure or a notch can also be formed at the inner end of the baffle, so that the baffle can abut against the second wall plate part 112, and the adjacent two flow collection channels 1101 separated by the baffle are communicated through the slot structure or the notch; in addition, a through hole structure can also be formed on the baffle, so that the baffle can still abut against the second wall plate part 112, and the adjacent two flow collection channels 1101 separated by the baffle are communicated through the through hole structure.

[0048] In a specific scheme, the plurality of flat tubes 121 corresponding to the first flow collection part of the first flow collection part 110a form at least one flat tube group, and the plurality of flat tubes 121 corresponding to the second flow collection part of the first flow collection part 110a also form at least one flat tube group, and the plurality of flat tubes 121 of each flat tube group are arranged in a stacked manner along the width direction of the flow collection part, and each flat tube group is arranged along the length direction of the flow collection part.

[0049] As shown in the figure, in the illustrated scheme, the plurality of flat tubes 121 of the flat tube component are divided into only two flat tube groups, i.e. a first flat tube group 120a and a second flat tube group 120b, along the direction of the X-axis. The flat tubes 121 of the first flat tube group 120a communicate the manifold cavity of the first manifold of the first manifold component 110a with the manifold cavity of the second manifold component 110b, and the flat tubes 121 of the second flat tube group 120b communicate the manifold cavity of the second manifold of the first manifold component 110a with the manifold cavity of the second manifold component 110b. That is, the manifold cavity of the first manifold communicates with the manifold cavity of the second manifold component 110b through the first flat tube group 120a, the second flat tube group 120b and the manifold cavity of the second manifold.

[0050] Correspondingly, the second wall plate part 112 of the manifold component has two groups of insertion holes corresponding to the first flat tube group 120a and the second flat tube group 120b, respectively. The plurality of insertion holes 1121 of each group of insertion holes are arranged along the direction of the Z-axis, and the number of the insertion holes 1121 of each group of insertion holes corresponds to the number of the flat tubes 121 of the corresponding flat tube group.

[0051] In this embodiment, on the basis that the first manifold component 110a is divided into a first manifold and a second manifold, the first end plate 114a of the first manifold component 110a is provided with a first fluid interface 100a and a second fluid interface 100b. The first fluid interface 100a communicates with the manifold cavity of the first manifold, and the second fluid interface 100b communicates with the manifold cavity of the second manifold.

[0052] Reference is made to Figure 4 In the illustrated scheme, the fluid interface on the left side of the first end plate 114a is the first fluid interface 100a, and correspondingly, the part of the first manifold component 110a on the left side is the first manifold. The fluid interface on the right side of the first end plate 114a is the second fluid interface 100b, and correspondingly, the part of the first manifold component 110a on the right side is the second manifold.

[0053] Taking the first fluid interface 100a on the left side in the illustrated scheme as the refrigerant inlet and the first fluid interface 100b on the right side as the refrigerant outlet as an example to illustrate the flow path of the refrigerant, Figure 4 The arrows in the figure mark the flow direction of the refrigerant.

[0054] When the refrigerant flows into the collecting cavity of the first collecting part of the first collecting member 110a from the first fluid interface 100a, the refrigerant can only flow to the collecting cavity of the second collecting member 110b through each flat tube 121 of the first flat tube group 120a due to the partition of the partition plate in the first collecting member 110a. Since the collecting cavity of the second collecting member 110b is not provided with a partition plate, the refrigerant flows into the collecting cavity of the second collecting member 110b and then flows to the collecting cavity of the second collecting part of the first collecting member 110a through each flat tube 121 of the second flat tube group 120b. Finally, the refrigerant flows out through the second fluid interface 100b.

[0055] In a specific arrangement, the partition plate can be arranged in the middle of the first collecting member 110a to symmetrically partition the collecting cavity of the first collecting member 110a. Of course, according to the needs, the partition plate can also not be arranged in the middle of the first collecting member 110a, and the lengths of the partitioned first collecting part and second collecting part can be different.

[0056] In a specific arrangement, the first collecting part and the second collecting part can each correspond to two or more flat tube groups, and the number of flat tube groups corresponding to each collecting part can be different. The number of flat tubes 121 of each flat tube group can be the same or different, which can be determined according to the needs and actual conditions.

[0057] In a specific scheme, the number of collecting flow channels 1101 of the first collecting member 110a is the same as the number of collecting flow channels 1101 of the second collecting member 110b. The number of collecting flow channels 1101 of each collecting member can be designed according to the needs, such as 2-10, which is preferably designed to be a relatively large number in this embodiment because the collecting flow channels 1101 are arranged along the length direction of the collecting member. Of course, in actual use, the number can be determined in combination with the specific size of the collecting member and the specific type of refrigerant and other actual needs.

[0058] In a further scheme, the first wall plate part 111 of the collecting member includes two or more outwardly protruding curved segments, and the adjacent two curved segments are smoothly connected. The aforementioned baffle plate is arranged between the adjacent two curved segments. In this way, each curved segment forms the outer side wall surface of the collecting flow channel 1101, and this structure can further improve the pressure-bearing capacity of each collecting flow channel 1101, thereby improving the pressure-bearing capacity of the collecting member under the same size, so that the core 100 can be suitable for refrigerants with high pressure resistance requirements, such as CO2.

[0059] Specifically, each curved segment of the first wall plate part 111 is an arc structure, which is preferably a semicircular arc. The structure is symmetrical and easy to process, which is more conducive to improving the pressure-bearing capacity.

[0060] In specific solutions, the first wall plate part 111, the two side plate parts 113 and the baffle plates of the current collecting component are in an integrated structure, so as to reduce the connection points of the current collecting component and ensure the strength of the current collecting component.

[0061] More specifically, if the processing conditions allow, the first wall plate part 111, the two side plate parts 113, the baffle plates and the second wall plate part 112 of the current collecting component are in an integrated structure.

[0062] In specific solutions, the equivalent diameter of the cross section of each current collecting flow channel 1101 of the current collecting component can be selected between 5-25mm. Of course, in practice, other values can also be set according to requirements.

[0063] In this embodiment, the outer wall of the current collecting flow channel 1101 is in an arc-shaped structure, and in actual arrangement, the cross section of the current collecting flow channel 1101 can be approximately circular or oblong or elliptical, etc.

[0064] Reference Figure 2 It can be understood that the first wall plate part 111, the two side plate parts 113 and the second wall plate part 112 of the current collecting component form the main component of the current collecting component, and in specific solutions, an insertion slot 115 with an outward opening is arranged at the position close to the two ends of the main component, the first end plate 114a and the second end plate 114b are in a shape suitable for the insertion slot 115, and the first end plate 114a and the second end plate 114b are inserted into the insertion slot 115 and are arranged in a sealed manner at the connection position.

[0065] As described above, the first end plate 114a and the second end plate 114b block the opening of the current collecting component in a plug-in manner, which can improve the reliability of the connection between the first end plate 114a, the second end plate 114b and the main component of the current collecting component. Compared with the way of directly blocking the opening end face, this way can withstand greater pressure and further improve the pressure-bearing capacity of the current collecting component.

[0066] For example, in the illustrated solution, the first fluid interface 100a and the second fluid interface 100b are both formed on the first end plate 114a of the first current collecting component 110a. Obviously, the first fluid interface 100a and the second fluid interface 100b are arranged on the two sides of the partition plate inside the first current collecting component 110a.

[0067] As shown in Figure 1 and Figure 2 The first fluid interface 100a and the second fluid interface 100b are formed on the same end plate, i.e. the first end plate 114a. It can be understood that in actual arrangement, the two fluid interfaces can be formed on the two end plates of the first current collecting component 110a, respectively.

[0068] In this embodiment, the heat exchange device further comprises a fluid interface seat component, so as to facilitate the installation of a pipe connected with the fluid interface.

[0069] Still taking Figure 1 and Figure 2 as an example, the heat exchange device includes a first interface seat 310 and a second interface seat 320, which are matched with the first fluid interface 100a and the second fluid interface 100b respectively.

[0070] Specifically, the first interface seat 310 includes a first adapter seat 312 and a first pipe seat 311, the first adapter seat 312 is connected with the shell 200 and the first flow collecting component 110a, and has a through hole communicating with the first fluid interface 100a, the first pipe seat 311 is buckled on the first adapter seat 312 and fixed by welding, and has a first interface for matching with the pipe, the first interface of the first pipe seat 311 communicates with the through hole of the first adapter seat 312, so that the pipe inserted thereon can communicate with the first fluid interface 100a, that is, the first pipe seat 311 is fixed with the first end plate 114a through the first adapter seat 312, and the first interface of the first pipe seat 311 can communicate with the flow collecting cavity of the first flow collecting component through the first fluid interface 100a.

[0071] The second interface seat 320 is similar to the structure of the first interface seat 310, including a second adapter seat 322 and a second pipe seat 321, the second pipe seat 321 is provided with a second interface, the second pipe seat 321 is fixed with the first end plate 114a through the second adapter seat 322, and the second interface communicates with the flow collecting cavity of the second flow collecting component through the second fluid interface 100b.

[0072] Please refer to Figure 5 , Figure 5 for a schematic view of the structure of the flat tube in the specific embodiment.

[0073] In this embodiment, each flat tube 121 of the flat tube component has two or more flow through holes 1211, and each flow through hole 1211 is arranged along the width direction of the flat tube, that is, one flat tube 121 is connected with two flow collecting components through two or more flow through holes 1211 inside the flat tube. In this way, the flow through cavity of the flat tube 121 is divided into two or more flow through holes 1211 which are independent of each other, so that the hole wall forming each flow through hole 1211 bears the fluid pressure in the hole, and for flat tubes of the same size, the pressure bearing capacity of the flat tube 121 can be improved, and the size of the flat tube 121 is not increased, which further provides favorable conditions for the lightweight and small size design of the core 100.

[0074] In combination with the structure of the flow collecting component described above, the structure design of the core 100 can be suitable for CO2 and other similar refrigerants without increasing the size, which not only meets the environmental protection demand, but also meets the development demand of automobile lightweight.

[0075] In the illustrated scheme, the flow-through holes 1211 of the flat tubes 121 are circular holes. It can be understood that, in actual settings, the flow-through holes 1211 can also be designed as other shapes such as elliptical holes or polygonal holes.

[0076] Specifically, the equivalent aperture of the flow-through holes 1211 can be selected within a range of 0.3 mm to 1.5 mm, and the center distance between two adjacent flow-through holes 1211 can preferably be 0.5 mm to 2.5 mm.

[0077] The above describes the specific structure of the core 100 of the heat exchange device in detail, and the detailed structure of the refrigerant flow space is described. The following describes the flow space of the cooling liquid.

[0078] As mentioned above, the cooling liquid flow space is formed between the shell 200 and the core 100.

[0079] Referring to Figure 1 and Figure 2 In this embodiment, the shell 200 is an integral structure, which is specifically formed by sequentially connecting four shell walls. For ease of description, the two shell walls arranged along the X-axis direction are referred to as side walls of the shell 200, and the two shell walls arranged along the Z-axis direction are referred to as the top wall and the bottom wall of the shell 200, respectively. Among them, the top wall is the upper shell wall in the illustration, and the bottom wall is the lower shell wall in the illustration.

[0080] It can be understood that, since the cooling liquid flow space is formed between the shell 200 and the core 100, the connection between the shell 200 and the core 100 is sealed. Specifically, the flat tube part of the core 100 is located inside the shell 200, and the two end faces of the shell 200 are connected to the second wall plate parts 112 of the two header parts 110 of the core 100.

[0081] In this embodiment, the shell 200 is provided with one or more than one baffle 500. Among them, one end of the baffle 500 is kept a predetermined distance from one of the first header part 110a and the second header part 110b, the other end of the baffle 500 is fixed to the other of the first header part 110a and the second header part 110b, and the two side parts of the baffle 500 are fixed to the inner wall of the shell 200, so as to divide the cooling liquid flow space into two or more than two cooling liquid flow channels which are parallel and connected to each other, and are configured such that one end of the two adjacent cooling liquid flow channels is blocked and the other end is connected.

[0082] Among them, the cooling liquid flow channel and the flow-through passage between the first header part and the second header part 110b of the core 100 and the flow-through passage between the second header part and the second header part 110b are arranged in parallel, so as to facilitate the cooling liquid flowing in the cooling liquid flow channel and the refrigerant flowing in each flow-through passage to exchange heat.

[0083] The shell 200 also has two cooling liquid interfaces 210, which are respectively communicated with two cooling liquid flow channels located at the outer side.

[0084] It can be understood that, after being arranged as above, the cooling liquid flowing into one cooling liquid interface 210 can sequentially flow through each cooling liquid flow channel and then flow out from the other cooling liquid interface 210, that is, the flow route of the cooling liquid in the cooling liquid flow space is also similar to a snake shape.

[0085] The heat exchange device also comprises a first cooling liquid connection pipe component 410 and a second cooling liquid connection pipe component 420, which are respectively matched with the two cooling liquid interfaces 210 to facilitate the connection of the cooling liquid pipeline.

[0086] Specifically, the first cooling liquid connection pipe component 410 comprises a first connection pipe seat body 411 and a first connection pipe 412, the first connection pipe seat body 411 has a communication port communicated with the inner cavity thereof, the first connection pipe seat body 411 is connected with the side wall of the shell 200, and after being connected, the communication port thereof is communicated with the cooling liquid interface 210, the first connection pipe 412 is fixedly inserted into the first connection pipe seat body 411, and the first connection pipe 412 is communicated with the inner cavity of the first connection pipe seat body 411, so as to be communicated with the cooling liquid interface 210 through the communication port.

[0087] The second cooling liquid connection pipe component 420 is similar in structure to the first cooling liquid connection pipe component 410, and comprises a second connection pipe seat body 421 and a second connection pipe 422, and the specific structure and connection mode are similar to those of the first cooling liquid connection pipe component 410, which will not be described herein again.

[0088] For the convenience of understanding, the scheme shown in FIG. 4 is taken as an example, in which only one partition plate 500 is arranged in the shell 200, and the partition plate 500 divides the cooling liquid flow space into two cooling liquid flow channels. Figure 2

[0089] Please refer to FIG. 5 and FIG. 6 together, Figure 4A , Figure 4A FIG. 7 is a structural schematic view of the core of the heat exchange device, in which the structure of the cooling liquid connection pipe component is also shown to facilitate the description of the position of the cooling liquid interface and the flow route thereof.

[0090] In this embodiment, the flat tubes 121 of each flat tube group are arranged along the Z-axis direction, so that the partition plate 500 arranged in the shell 200 can only be located between the adjacent two flat tube groups, so as to divide the cooling liquid flow space into two cooling liquid flow channels. Figure 2 and Figure 4A As shown in the schemes shown in FIG. 7 and FIG. 8, on the basis that the first current collecting component 110a of the core 100 is divided into a first current collecting part and a second current collecting part, it can be understood that the two current collecting parts are respectively corresponded with the positions of the two cooling liquid flow channels.

[0091] ​In this embodiment, since the flat tubes 121 are arranged along the Z-axis, in order to facilitate the flow of coolant between the flat tubes 121, two coolant inlets 210 are respectively formed on the two side walls of the housing 200. That is to say, after the coolant flows into the housing 200 from one coolant inlet 210, it can flow directly between the flat tubes 121, which is beneficial to the flow of coolant in the coolant channel.

[0092] Based on the setting of two coolant flow channels, it can be understood that the two coolant inlets 210 are located at the same end of the housing 200.

[0093] In the illustrated scheme, two coolant inlets 210 are located at one end of the housing 200 near the second manifold 110b. On this basis, one end of the baffle 500 located inside the housing 200 abuts against the second manifold 110b, so that the two coolant channels are separated on the side where the second manifold 110b is located, preventing coolant flowing in from one coolant inlet 210 from flowing out directly from the other coolant inlet 210 without passing through the coolant channel. Correspondingly, the other end of the baffle 500 has a preset distance from the first manifold 110a, so that the two coolant channels are connected on the side where the first manifold 110a is located.

[0094] It is understood that the upper and lower ends of the baffle 500 should abut against the top and bottom walls of the housing 200 respectively, so that the two coolant flow channels are connected only on the side where the first collector component 110a is located.

[0095] In a specific design, positioning grooves adapted to the baffle 500 can be provided at corresponding positions on the bottom and top walls of the housing 200 to facilitate the installation of the baffle 500 and the housing 200.

[0096] Specifically, two parallel protrusions can be fixed to appropriate positions on the bottom or top wall of the housing 200, forming a positioning groove between the two protrusions that is compatible with the baffle 500.

[0097] In actual installation, the baffle 500 can also abut against the first collector component 110a. A notch structure or a through hole structure can be opened at the end of the baffle 500 that is close to the first collector component 110a. The two coolant flow channels can be connected on the side where the first collector component 110a is located through the notch structure or the through hole structure.

[0098] by Figure 4A As shown in the diagram, assuming the first coolant connection 410 is the coolant inlet pipe and the second coolant connection 420 is the coolant outlet pipe, the flow path of the coolant within the heat exchanger is as follows:

[0099] The cooling liquid in the first cooling liquid connection part 410 flows into the shell 200 through the corresponding cooling liquid interface 210, and then directly flows between the flat tubes 121 of the first flat tube group 120a. The cooling liquid can only flow from the second collecting part 110b to the first collecting part 110a along the cooling liquid flow channel on the left side of the baffle 500 due to the blocking effect of the baffle 500. When the cooling liquid flows to the position of the first collecting part 110a, the cooling liquid can flow from the left side of the baffle 500 to the right side due to the preset distance between the baffle 500 and the first collecting part 110a, and then flow from the first collecting part 110a to the second collecting part 110b along the cooling liquid flow channel on the right side of the baffle 500. When the cooling liquid flows to the position of the second collecting part 110b, the cooling liquid can flow out of the second cooling liquid connection part 420 through the corresponding cooling liquid interface 210 due to the blocking effect of the baffle 500.

[0100] In the examples shown in FIGS. 1 to 3, the flow direction of the refrigerant and the flow direction of the cooling liquid in the corresponding refrigerant flow channel and the cooling liquid flow channel are opposite. It can be understood that, in actual settings, the flow direction of the refrigerant and the flow direction of the cooling liquid can be the same by changing the inlet and outlet. Figure 4 and Figure 4A In the examples shown in FIGS. 1 to 3, the flow direction of the refrigerant and the flow direction of the cooling liquid in the corresponding refrigerant flow channel and the cooling liquid flow channel are opposite. It can be understood that, in actual settings, the flow direction of the refrigerant and the flow direction of the cooling liquid can be the same by changing the inlet and outlet.

[0101] It should be noted that, in the above-described embodiments, the cooling liquid flow channel is divided into two, but in actual settings, the cooling liquid flow channel can be divided into three or other numbers.

[0102] In specific solutions, the heat exchange device further comprises a plurality of fins arranged in the shell 200. The fins are arranged between adjacent two flat tubes 121 or between the flat tube 121 and the shell 200 to strengthen heat exchange.

[0103] Specifically, the fins can have a continuous corrugated structure or a square wave structure, etc. to increase the heat exchange area.

[0104] Specifically, the extension direction of the fins can be consistent with the length direction of the flat tube 121, or perpendicular to the length direction of the flat tube 121, or other forms. Adjacent two fins can be arranged staggered. Different arrangement modes of the fins affect the heat exchange effect, which can be set according to specific requirements in actual settings.

[0105] Specifically, the surface of the fins can be provided with structures such as protrusions or ribs to strengthen the heat exchange effect.

[0106] The heat exchange device provided by the present application is described in detail above. The principle and implementation mode of the present application are described by applying specific examples in this paper, and the above description of the examples is only used to help understand the method of the present application and its core idea. It should be pointed out that, for ordinary skilled persons in the technical field, some improvements and modifications can be made to the present application without departing from the principle of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. Heat exchange device comprising a core and a shell, characterized in that, The core comprises oppositely arranged first and second current collecting components, and a flat tube component is arranged between the first and second current collecting components; The flat tube component comprises first and second flat tube groups, and each of the first and second flat tube groups comprises a plurality of flat tubes, and two ends of each flat tube are respectively communicated with the first and second current collecting components; The flat tube component is located in the shell, and a cooling liquid flowing space is formed between the shell and the core; The second current collecting component has a current collecting cavity, and the current collecting cavity of the second current collecting component has two or more current collecting flow channels arranged side by side and communicated with each other; The first current collecting component has a current collecting cavity, and the first current collecting component comprises a first current collecting part and a second current collecting part, and a partition plate is arranged between the first and second current collecting parts; the plurality of flat tubes of the first flat tube group are stacked along the width direction of the first current collecting component, and each flat tube is communicated with the current collecting cavity of the first current collecting part; the plurality of flat tubes of the second flat tube group are stacked along the width direction of the first current collecting component, and each flat tube is communicated with the current collecting cavity of the second current collecting part; the current collecting cavity of the first current collecting part is communicated with the current collecting cavity of the second current collecting component through the first flat tube group, the second current collecting component and the second flat tube group; the current collecting cavity of the second current collecting component has two or more current collecting flow channels arranged side by side and communicated with each other; The second current collecting component comprises a main body component, a first end plate and a second end plate, the current collecting cavity of the second current collecting component is located in the main body component, and the first and second end plates cover two ends of the current collecting cavity of the first current collecting component; the main body component comprises a first wall plate part, a second wall plate part and two side plate parts; The first wall plate part is provided with at least one baffle plate extending towards the second wall plate part, and the baffle plate divides the current collecting cavity of the second current collecting component into two or more current collecting flow channels arranged side by side and communicated with each other; The second wall plate part has a plurality of insertion holes matched with the flat tubes.

2. The heat exchange device according to claim 1, wherein The current collecting cavity of the first current collecting part has two or more current collecting flow channels arranged side by side and communicated with each other, and the current collecting cavity of the second current collecting part has two or more current collecting flow channels arranged side by side and communicated with each other; each current collecting flow channel of the first current collecting part is communicated with the current collecting cavity of the second current collecting component through the first flat tube group, and each current collecting flow channel of the second current collecting part is communicated with the current collecting cavity of the second current collecting component through the second flat tube group.

3. The heat exchange device according to claim 1, wherein The first current collecting component comprises a main body component, a first end plate and a second end plate, the current collecting cavity of the first current collecting component is located in the main body component, and the first and second end plates cover two ends of the current collecting cavity of the first current collecting component; the main body component comprises a first wall plate part, a second wall plate part and two side plate parts; The first wall plate part is provided with one partition plate extending towards and abutting against the second wall plate part, and the partition plate divides the first current collecting component into the first and second current collecting parts; The second wall plate part has a plurality of insertion holes matched with the flat tubes.

4. The heat exchange device according to claim 3, wherein The main body part is provided with an outwardly open insertion slot at a position close to both ends of the flow collection cavity of the first flow collection part, the first end plate and the second end plate are shaped to fit the insertion slot, and the first end plate and the second end plate are inserted into the insertion slot and are sealingly connected.

5. The heat exchange device according to claim 3, wherein The first end plate is provided with a first fluid interface and a second fluid interface, the first fluid interface is in communication with the flow collection cavity of the first flow collection part, and the second fluid interface is in communication with the flow collection cavity of the second flow collection part. The heat exchange device further comprises a first interface seat and a second interface seat, the first interface seat comprises a first adapter seat and a first pipe seat, and the second interface seat comprises a second adapter seat and a second pipe seat. The first pipe seat is provided with a first interface, the second pipe seat is provided with a second interface, the first pipe seat is fixed to the first end plate through the first adapter seat, the second pipe seat is fixed to the first end plate through the second adapter seat, the first interface is in communication with the flow collection cavity of the first flow collection part through the first fluid interface, and the second interface is in communication with the flow collection cavity of the second flow collection part through the second fluid interface.

6. The heat exchange device according to claim 1, wherein The main body part is provided with an outwardly open insertion slot at a position close to both ends of the flow collection cavity of the second flow collection part, the first end plate and the second end plate are shaped to fit the insertion slot, and the first end plate and the second end plate are inserted into the insertion slot and are sealingly connected.

7. The heat exchange device according to any one of claims 1 to 6, characterized in that The shell is provided with one or more baffles, one end of the baffle is kept at a predetermined distance from one of the first flow collection part and the second flow collection part, the other end of the baffle is fixed to the other of the first flow collection part and the second flow collection part, and the two sides of the baffle are fixed to the inner wall of the shell to divide the cooling liquid flow space into two or more cooling liquid flow channels that are parallel and in communication with each other, and are configured such that one end of adjacent two cooling liquid flow channels is blocked and the other end is communicated. The shell has two cooling liquid interfaces that are in communication with two cooling liquid flow channels located on the outside.

8. The heat exchange device according to claim 7, wherein The two cooling liquid interfaces are formed on two opposite side walls of the shell, and the two side walls are arranged along the length direction of the first flow collection part. The shell is further provided with a plurality of fins, and the fins are arranged between adjacent two flat tubes or between the flat tubes and the shell.

9. The heat exchange device according to claim 2, wherein The number of flow collection channels of the first flow collection part is the same as the number of flow collection channels of the second flow collection part, the number of flow collection channels is 2-10, and the equivalent diameter of the cross section of the flow collection channel is 5-25 mm. The flat tube has two or more flow-through holes, each flow-through hole is arranged along the width direction of the flat tube, the equivalent aperture of the flow-through hole ranges from 0.3 mm to 1.5 mm, and the center distance between adjacent two flow-through holes ranges from 0.5 mm to 2.5 mm.

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