CN116358320A

CN116358320A - Heat exchanging device

Info

Publication number: CN116358320A
Application number: CN202310394388.7A
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Zhejiang Sanhua Automotive Components Co Ltd
Current assignee: Zhejiang Sanhua Automotive Components Co Ltd
Priority date: 2018-11-30
Filing date: 2018-11-30
Publication date: 2023-06-30
Also published as: CN111256390A; CN111256390B

Abstract

The invention discloses a heat exchange device, which comprises a core body and a shell, wherein the core body comprises two current collecting parts and a flat pipe part; the flat pipe component comprises a first flat pipe group and a second flat pipe group, wherein the first flat pipe group and the second flat pipe group comprise a plurality of flat pipes, and two ends of each flat pipe are respectively communicated with the first current collecting component and the second current collecting component; two ends of the shell are fixedly connected with the first collecting part and the second collecting part respectively, the flat pipe part is positioned in the shell, and a cooling liquid flowing space is formed between the shell and the core; the manifold of the second manifold component is provided with more than two manifold runners which are arranged in parallel and communicated with each other; the first current collecting part comprises a first current collecting part and a second current collecting part, and a separator is arranged between the two current collecting parts; each flat tube of the first flat tube group is communicated with a current collecting cavity of the first current collecting part; each flat tube of the second flat tube group is communicated with a current collecting cavity of the second current collecting part; the manifold of the first current collecting part is communicated with the manifold of the second current collecting part through the first flat tube group, the manifold of the second current collecting part and the second flat tube group. The heat exchange device has higher pressure bearing capacity and compact structure.

Description

Heat exchanging device

Technical Field

The invention relates to the technical field of heat exchange, in particular to a heat exchange device.

Background

With the enhancement of environmental awareness, the use of environmental protection refrigerants in vehicle air conditioning systems has become a development trend in industry, wherein, CO ₂ As a refrigerant, it has low costLow cost, environmental protection and the like, and can replace common refrigerants.

By CO ₂ The air conditioning system as the refrigerant has higher working pressure, and the thickness of parts of the heat exchange device is generally required to be increased to enhance the compressive strength of the heat exchange device, but the weight of the heat exchange device is also increased, the size is also increased, and the difficulty is increased for the space layout of the parts of the automobile.

In view of this, how to provide a heat exchange device, which has high pressure resistance and compact structure on the basis of meeting the heat exchange requirement, is a technical problem that needs to be solved currently by those skilled in the art.

Disclosure of Invention

The invention aims to provide a heat exchange device which has higher pressure bearing capacity and compact structure.

The invention provides a heat exchange device, which comprises a core body and a shell, wherein the core body comprises a first current collecting part and a second current collecting part which are oppositely arranged, and a flat pipe part is arranged between the first current collecting part and the second current collecting part;

the flat tube component comprises a first flat tube group and a second flat tube group, the first flat tube group and the second flat tube group comprise a plurality of flat tubes, and two ends of each flat tube are respectively communicated with the first current collecting component and the second current collecting component;

the flat pipe component is positioned in the shell, and a cooling liquid flowing space is formed between the shell and the core body;

the second flow collecting part is provided with a flow collecting cavity, and the flow collecting cavity of the second flow collecting part is provided with more than two flow collecting channels which are arranged in parallel and communicated with each other;

the first current collecting part is provided with a current collecting cavity, and comprises a first current collecting part and a second current collecting part, and a separator is arranged between the first current collecting part and the second current collecting part; a plurality of flat tubes of the first flat tube group are stacked along the width direction of the first current collecting part, and each flat tube is communicated with a current collecting cavity of the first current collecting part; a plurality of flat tubes of the second flat tube group are stacked along the width direction of the first current collecting part, and each flat tube is communicated with a current collecting cavity of the second current collecting part; the manifold of the first manifold is communicated with the manifold of the second manifold through the first flat tube group, the manifold of the second manifold part and the second flat tube group.

Since the manifold of the second manifold member is designed in the form of two or more manifold channels arranged in parallel and communicating with each other and the first manifold member is designed in the form of a manifold portion including two manifold portions arranged in parallel and not communicating with each other in the heat exchange device, the wall portions forming the manifold channels serve to bear pressure, and the pressure bearing capacity can be improved for the same-sized manifold member, and the first manifold portion communicates with the second manifold portion through the first flat tube group, the second manifold member, and the second flat tube group, and the CO can be improved ₂ Thereby contributing to an improvement in heat exchange performance.

Drawings

FIG. 1 is a schematic view of a heat exchanger according to an embodiment of the present invention;

FIG. 2 is an exploded view of the heat exchange device of FIG. 1;

FIG. 3 is a schematic view showing the internal structure of the flat tube component and the current collecting component after the flat tube component is connected in the specific embodiment;

FIG. 4 is a schematic view of the core of the heat exchange device of FIG. 1, with arrows indicating the direction of refrigerant flow;

FIG. 4A is a schematic view of the core of the heat exchange device of FIG. 1, with arrows indicating the direction of coolant flow;

fig. 5 shows a schematic structural view of a flat tube in an embodiment.

Reference numerals illustrate:

a core 100, a first fluid interface 100a, a second fluid interface 100b;

a first current collecting member 110a, a second current collecting member 110b, a first wall plate portion 111, a second wall plate portion 112, an insertion hole 1121, a side plate portion 113, a first end plate 114a, a second end plate 114b, an insertion slot 115, and a current collecting flow passage 1101;

a first flat tube group 120a, a second flat tube group 120b, a flat tube 121, a flow hole 1211;

a housing 200, a coolant port 210;

the first interface seat 310, the first connector seat 311, the first adapter seat 312, the second interface seat 320, the second connector seat 321 and the second adapter seat 322;

a first cooling liquid pipe connection part 410, a first pipe connection seat 411, a first pipe connection 412, a second cooling liquid pipe connection part 420, a second pipe connection seat 421, and a second pipe connection 422;

the barrier 500.

Detailed Description

In order to better understand the aspects of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.

Referring to fig. 1 to 4, fig. 1 is a schematic structural diagram of a heat exchange device according to an embodiment of the present invention; FIG. 2 is an exploded view of the heat exchange device of FIG. 1; FIG. 3 is a schematic view showing the internal structure of the flat tube component and the current collecting component after the flat tube component is connected in the specific embodiment; fig. 4 is a schematic structural view of a core of the heat exchange device shown in fig. 1.

In this embodiment, the heat exchange device includes a core 100 and a housing 200.

The core 100 comprises two parallel current collecting components, and a flat pipe component is arranged between the two current collecting components; hereinafter, for convenience of description and understanding, the two current collecting members will be referred to as a first current collecting member 110a and a second current collecting member 110b, respectively.

The flat tube component comprises a plurality of flat tubes 121, and two ends of each flat tube 121 are respectively communicated with the first current collecting component 110a and the second current collecting component 110b.

The casing 200 is sleeved outside the core 100, specifically, two ends of the casing 200 are respectively and fixedly connected with the first current collecting part 110a and the second current collecting part 110b, the flat pipe part is positioned inside the casing 200, and a cooling liquid flowing space is formed between the casing 200 and the core 100; it is understood that the flow space of the cooling liquid is actually a space formed between the housing 200 and the flat tube 121.

The flow passage communicating with the inside of the flat tube 121 of the core 100 is a refrigerant flow space.

Wherein the first current collecting member 110a has a current collecting cavity, the first current collecting member 110a includes a first current collecting part and a second current collecting part, and a separator is disposed between the first current collecting part and the second current collecting part, so that the current collecting cavity of the first current collecting part is not communicated with the current collecting cavity of the second current collecting part; a part of the flat tube 121 of the flat tube component can be communicated with the manifold of the first manifold part and the manifold of the second manifold part 110b, and the other part of the flat tube 121 of the flat tube component can be communicated with the manifold of the second manifold part and the manifold of the second manifold part 110 b; that is, the manifold of the first manifold can communicate with the manifold of the second manifold through a portion of the flat tube 121, the manifold of the second manifold member 110b, and another portion of the flat tube 121.

The second manifold member 110b has a manifold, and the manifold of the second manifold member 110b has two or more manifold channels 1101 arranged in parallel and communicating with each other.

As described above, in the heat exchange device, the manifold of the second manifold member 110b is designed in the form of two or more manifold flow paths 1101 arranged in parallel and communicating with each other, the first manifold member 110a is designed in the form of a manifold portion including two manifold flow paths arranged in parallel and not communicating with each other, so that the wall portion forming each manifold flow path 1101 is used to bear pressure, the pressure bearing capacity can be improved for the same-sized manifold member, and the first manifold portion communicates with the second manifold portion through the flat tube 121 corresponding to the first manifold portion, the second manifold member, the flat tube 121 corresponding to the second manifold portion, so that the refrigerant such as CO can be improved ₂ Thereby contributing to an improvement in heat exchange performance. The main body portions of the first current collecting member 110a and the second current collecting member 110b are substantially identical in structure, and for simplicity of description, the same structural portions will be collectively described below, and differences between the two will be separately described.

In particular embodiments, the manifold includes a body member, a first end plate 114a, and a second end plate 114b, with the manifold of the manifold being positioned within the body member, the first end plate 114a and the second end plate 114b closing both ends of the manifold.

For convenience of explanation, referring to fig. 2, the X-axis direction is defined as the length direction of the current collecting member in the drawing, and the Z-axis direction is defined as the width direction of the current collecting member.

Specifically, the main body member includes a first wall plate portion 111, a second wall plate portion 112, and two side plate portions 113; the first wall plate portion 111 and the second wall plate portion 112 are disposed opposite to each other, and both ends of the first wall plate portion 111 and the second wall plate portion 112 are connected by two side plate portions 113, respectively, such that the first wall plate portion 111, the second wall plate portion 112, and the two side plate portions 113 form a body member of the current collecting member, both ends of the body member are open in a width direction of the current collecting member, and the first end plate 114a and the second end plate 114b are used to close both end openings of the body member.

In this embodiment, the first wall plate 111 is relatively far from the flat tube 121, and the second wall plate 112 is relatively close to the flat tube 121.

In this embodiment, the first current collecting member 110a has one partition plate provided on the inner wall of the first wall plate 111, extending toward the second wall plate 112 and abutting against the second wall plate 112, and dividing the first current collecting member 110a into the first current collecting portion and the second current collecting portion; it will be appreciated that in actual arrangement, the separator may be integrally formed with the main body of the first current collecting member 110a, or may be separately provided and then fixedly connected with the main body of the first current collecting member 110 a.

In this embodiment, the second collecting member 110b has at least one baffle plate extending toward the second wall plate 112 on the inner wall of the first wall plate 111, and the collecting chamber of the second collecting member 110b is divided into two or more collecting flow passages 1101 arranged in parallel and communicating with each other by the baffle plate.

In the illustrated embodiment, the axis of each flow collecting channel 1101 of the second flow collecting member 110b is perpendicular to the length direction of the second flow collecting member 110b, that is, each flow collecting channel 1101 of the second flow collecting member 110b is arranged along the length direction of the second flow collecting member 110b, and it is understood that each baffle is correspondingly arranged along the length direction of the second flow collecting member 110b, so that the axis of the flow collecting channel 1101 formed by separation is perpendicular to the length direction of the second flow collecting member 110b. It is also understood that, in actual arrangement, the axis of each flow collecting channel 1101 of the second flow collecting member 110b may not be perpendicular to the longitudinal direction of the second flow collecting member 110b.

In a further embodiment, the manifold of the first manifold portion of the first manifold member 110a has two or more manifold channels 1101 arranged in parallel and communicating with each other, and the manifold of the second manifold portion of the first manifold member 110a has two or more manifold channels 1101 arranged in parallel and communicating with each other.

Specifically, the inner wall of the first wall plate 111 of the first collecting part 110a is provided with at least one baffle extending toward the second wall plate 112 at a position corresponding to the first collecting part to divide the collecting chamber of the first collecting part into two or more collecting flow passages 1101 by the baffle; similarly, the inner wall of the first wall plate 111 of the first collecting member 110a is also provided with at least one baffle extending toward the second wall plate 112 at a position corresponding to the second collecting portion to divide the collecting chamber of the second collecting portion into two or more collecting flow passages 1101 by the baffle.

In the illustrated embodiment, the axis of each flow collecting channel 1101 of the first flow collecting member 110a is also perpendicular to the longitudinal direction of the first flow collecting member 110a, and of course, in actual installation, the axis of each flow collecting channel 1101 of the first flow collecting member 110a may not be perpendicular to the longitudinal direction of the first flow collecting member 110 a.

The second wall plate 112 of the current collecting part has a plurality of insertion holes 1121 adapted to the flat tube 121, specifically, two ends of the flat tube 121 are respectively inserted into the two second wall plates 112 of the two current collecting parts, so that the flat tube 121 communicates with the current collecting cavities of the two current collecting parts.

In a specific scheme, in order to ensure the mutual communication of the current collecting channels 1101, the baffle plate may be integrally kept at a certain distance from the second wall plate 112, and of course, a groove structure, a notch or the like may be formed at the inner end of the baffle plate, so that the baffle plate can abut against the second wall plate 112, and the adjacent two current collecting channels 1101 separated by the baffle plate are communicated through the formed groove structure, the notch or the like; in addition, a through hole structure may be formed on the baffle, so that the baffle can still abut against the second wall plate 112, and two adjacent collecting flow passages 1101 separated by the baffle are communicated through the formed through hole structure.

In a specific solution, the flat tubes 121 corresponding to the first collecting portion of the first collecting member 110a form at least one flat tube group, the flat tubes 121 corresponding to the second collecting portion of the first collecting member 110a also form at least one flat tube group, the flat tubes 121 of each flat tube group are stacked along the width direction of the collecting member, and each flat tube group is arranged along the length direction of the collecting member.

As shown in the drawing, in the illustrated embodiment, the plurality of flat tubes 121 of the flat tube component are divided into two flat tube groups along the direction of the X axis, namely, a first flat tube group 120a and a second flat tube group 120b, each flat tube 121 of the first flat tube group 120a is communicated with the manifold of the first manifold portion of the first manifold component 110a and the manifold of the second manifold component 110b, and each flat tube 121 of the second flat tube group 120b is communicated with the manifold of the second manifold portion of the first manifold component 110a and the manifold of the second manifold component 110 b; that is, the manifold of the first manifold communicates with the manifold of the second manifold through the first flat tube bank 120a, the manifold of the second manifold member 110b, and the second flat tube bank 120 b.

Accordingly, the second wall plate 112 of the current collecting member has two jack groups corresponding to the first flat tube group 120a and the second flat tube group 120b, respectively, and the plurality of jacks 1121 of each jack group are arranged along the Z-axis direction, and the number of jacks 1121 of each jack group corresponds to the number of flat tubes 121 of the corresponding flat tube group.

In this embodiment, on the basis of the first current collecting member 110a being divided into the first current collecting portion and the second current collecting portion, the first end plate 114a of the first current collecting member 110a is provided with the first fluid port 100a and the second fluid port 100b, wherein the first fluid port 100a communicates with the current collecting cavity of the first current collecting portion, and the second fluid port 100b communicates with the current collecting cavity of the second current collecting portion.

Referring to fig. 4, in the drawing, the fluid interface on the left side of the first end plate 114a is a first fluid interface 100a, the corresponding portion on the left side of the first current collecting member 110a is a first current collecting portion, the fluid interface on the right side of the first end plate 114a is a second fluid interface 100b, and the corresponding portion on the right side of the first current collecting member 110a is a second current collecting portion.

The flow path of the refrigerant is illustrated by taking the first fluid port 100a on the left side as a refrigerant inlet and the first fluid port 100b on the right side as a refrigerant outlet in the drawing, and the arrows in fig. 4 indicate the flow direction of the refrigerant.

After the refrigerant flows into the manifold of the first manifold portion of the first manifold member 110a from the first fluid port 100a, the refrigerant can only flow into the manifold of the second manifold member 110b through the flat tubes 121 of the first flat tube group 120a due to the separation of the separator plates in the first manifold member 110a, and the refrigerant flows into the manifold of the second manifold member 110b and then flows into the manifold of the second manifold portion of the first manifold member 110a through the flat tubes 121 of the second flat tube group 120b and finally flows out through the second fluid port 100b because no separator plates are provided in the manifold of the second manifold member 110b.

In particular, the separator may be disposed in the middle of the first current collecting member 110a to symmetrically separate the current collecting cavities of the first current collecting member 110a, and of course, the separator may not be disposed in the middle of the first current collecting member 110a, and the lengths of the separated first current collecting portion and second current collecting portion may be different according to needs.

When the device is specifically arranged, the first current collecting part and the second current collecting part can be respectively provided with more than two flat tube groups, the number of the flat tube groups corresponding to the current collecting parts can be set differently, the number of the flat tubes 121 of each flat tube group can be set identically or differently, and the device can be specifically determined according to requirements and actual conditions.

In a specific embodiment, the number of the current collecting channels 1101 of the first current collecting member 110a is the same as the number of the current collecting channels 1101 of the second current collecting member 110 b; the number of the collecting channels 1101 of each collecting member may be designed according to need, for example, preferably 2 to 10, and in this embodiment, the collecting channels 1101 are relatively designed to be more in number because the collecting channels 1101 are arranged along the length direction of the collecting member. Of course, it may be determined in practice in combination with the actual requirements of the particular size of the current collecting member and the particular type of refrigerant.

In a further aspect, the first wall plate 111 of the current collecting part includes more than two curved sections protruding outwards, the two adjacent curved sections are in smooth transition, and the baffle is disposed between the two adjacent curved sections; so designed, each curve section forms a flow collecting channel1101, and the structure can further improve the bearing capacity of each collecting flow passage 1101, so as to improve the bearing capacity of the collecting member under the same size, and the core 100 can be suitable for the refrigerant with high requirement on compressive strength, such as CO ₂ 。

Specifically, each curved section of the first wall plate 111 has an arc structure, preferably a semicircular arc, and is symmetrical in structure, convenient to process, and more beneficial to improving the bearing capacity.

In a specific embodiment, the first wall plate 111, the two side plate 113 and each baffle of the current collecting member are integrally formed, so as to reduce the connection points of the current collecting member and ensure the strength of the current collecting member.

More specifically, if the processing conditions allow, the first wall plate portion 111, the both side plate portions 113, the respective baffle plates, and the second wall plate portion 112 of the current collecting member are provided as an integral structure.

In a specific embodiment, the equivalent diameter of the cross section of each flow collecting channel 1101 of the flow collecting member may be selected between 5 and 25 mm. Of course, other embodiments may be used as needed.

In this embodiment, the outer wall of the collecting flow passage 1101 has an arc structure, and when actually arranged, the cross section of the collecting flow passage 1101 may have an approximately circular or oblong or elliptical structure.

Referring to fig. 2, it can be understood that the first wall plate 111, the two side plate 113 and the second wall plate 112 of the current collecting component form a main body component of the current collecting component, in a specific solution, slots 115 with outward openings are formed at positions, close to two ends, of the main body component, shapes of the first end plate 114a and the second end plate 114b are adapted to those of the slots 115, and the first end plate 114a and the second end plate 114b are inserted into the slots 115 and the connection positions are sealed.

As described above, the first end plate 114a and the second end plate 114b are inserted to seal the openings of the current collecting members, so that the reliability of the connection between the first end plate 114a, the second end plate 114b and the main body member of the current collecting members can be improved, and the pressure bearing capacity of the current collecting members can be further improved by bearing a larger pressure than by directly sealing the end surfaces of the openings.

Taking the illustrated embodiment as an example, specifically, the first fluid interface 100a and the second fluid interface 100b are formed on the first end plate 114a of the first current collecting member 110a, and it is apparent that the first fluid interface 100a and the second fluid interface 100b are disposed on two sides of the separator inside the first current collecting member 110 a.

As shown in fig. 1 and 2, the first fluid port 100a and the second fluid port 100b are formed on the same end plate, i.e., the first end plate 114a, it is understood that in practice, the two fluid ports may be formed on the two end plates of the first current collecting member 110a, respectively.

In this embodiment, the heat exchange device further comprises a fluid interface seat member to facilitate mounting of a tube in communication with the fluid interface.

Still referring to fig. 1 and 2, the heat exchange device includes a first interface seat 310 and a second interface seat 320, which are respectively engaged with the first fluid interface 100a and the second fluid interface 100 b.

Specifically, the first socket 310 includes a first socket 312 and a first socket holder 311, the first socket holder 312 being connected with the case 200 and the first collecting part 110a, having a through hole communicating with the first fluid interface 100a, the first socket holder 311 being snapped onto the first socket holder 312 and fixed by welding, having a first interface for being fitted with a socket, the first interface of which communicates with the through hole of the first socket holder 312 so that the socket inserted thereon can communicate with the first fluid interface 100a, that is, the first socket holder 311 is fixed with the first end plate 114a through the first socket holder 312, and the first interface of the first socket holder 311 can communicate with the collecting chamber of the first collecting part through the first fluid interface 100 a.

The second connector holder 320 has a similar structure to the first connector holder 310, and includes a second adapter holder 322 and a second connector holder 321, the second connector holder 321 being provided with a second connector, the second connector holder 321 being fixed to the first end plate 114a through the second adapter holder 322, and the second connector being in communication with the manifold of the second manifold portion through the second fluid interface 100 b.

Referring to fig. 5 together, fig. 5 shows a schematic structural diagram of a flat tube in an embodiment.

In this embodiment, each flat tube 121 of the flat tube member has two or more flow holes 1211, and each flow hole 1211 is arranged along the width direction of the flat tube, that is, one flat tube 121 communicates with two current collecting members through the two or more flow holes 1211 inside thereof. In this way, the flow cavity of the flat tube 121 is divided into more than two independent flow holes 1211, so that the hole wall forming each flow hole 1211 bears the fluid pressure in the hole, and for the flat tube with the same size, the pressure bearing capacity of the flat tube 121 can be improved, the size of the flat tube 121 is prevented from being increased, and the advantages are further provided for the light weight and small-sized design of the core 100.

In combination with the structure of the current collecting member, the core 100 is designed to accommodate CO without increasing the size ₂ And the like, not only meets the environment-friendly requirement, but also can meet the development requirement of automobile light weight.

In the illustrated embodiment, the flow hole 1211 of the flat tube 121 is a circular hole, and it is understood that the flow hole 1211 is also designed to have other shapes such as an ellipse and a polygon when actually installed.

Specifically, the equivalent pore diameter of the flow holes 1211 may be selected within a range of 0.3mm to 1.5mm, and the pitch of the centers of the adjacent two flow holes 1211 may be preferably 0.5mm to 2.5mm.

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

As mentioned previously, a coolant flow space is formed between the housing 200 and the core 100.

Referring to fig. 1 and 2, in this embodiment, the housing 200 is an integral structure, specifically, four housing walls are sequentially connected to form, hereinafter, for convenience of description, two housing walls arranged along the X-axis direction will be referred to as side walls of the housing 200, and two housing walls arranged along the Z-axis direction will be referred to as top walls and bottom walls of the housing 200, respectively, wherein the top walls are housing walls located above in the drawing, and the bottom walls are housing walls located below in the drawing.

It can be appreciated that the connection between the housing 200 and the core 100 is sealed because a coolant flow space is formed between the housing 200 and the core 100. Specifically, the flat tube member of the core 100 is located inside the case 200, and both end surfaces of the case 200 are connected to the second wall plate portions 112 of the two current collecting members of the core 100.

In this embodiment, one or more baffle plates 500 are provided in the case 200, wherein one end of the baffle plate 500 is kept a predetermined distance from one of the first and second current collecting

members

110a and 110b, the other end of the baffle plate 500 is fixed to the other of the first and second current collecting

members

110a and 110b, both side portions of the baffle plate 500 are fixed to the inner wall of the case 200 to partition the coolant flow space into two or more coolant flow passages juxtaposed and communicating with each other, and are configured to: one end of each two adjacent cooling liquid flow channels is separated, and the other ends are communicated.

Wherein, the flow passage between the cooling liquid flow passage and the first and second current collecting parts 110b of the core body 100 and the flow passage between the second current collecting part and the second current collecting part 110b are disposed in parallel so that the cooling liquid flowing in the cooling liquid flow passage exchanges heat with the refrigerant flowing in each flow passage.

The housing 200 also has two coolant ports 210, which communicate with two coolant channels located on the outside, respectively.

It will be appreciated that, after the above arrangement, the coolant flowing from one coolant port 210 can flow through each coolant flow channel sequentially and then flow out from the other coolant port 210, that is, the flow path of the coolant in the coolant flow space is also similar to a serpentine shape.

The heat exchange device further includes a first coolant take-over member 410 and a second coolant take-over member 420, which are respectively engaged with the two coolant ports 210 so as to be connected to the coolant lines.

Specifically, the first cooling liquid pipe connecting part 410 includes a first pipe connecting seat 411 and a first pipe connecting 412, the first pipe connecting seat 411 has a communication port communicating with an inner cavity thereof, the first pipe connecting seat 411 is connected with a side wall of the housing 200, after connection, the communication port communicates with the cooling liquid interface 210, the first pipe connecting 412 is fixedly inserted into the first pipe connecting seat 411, and the first pipe connecting 412 communicates with the inner cavity of the first pipe connecting seat 411, thereby communicating with the cooling liquid interface 210 through the communication port.

The second cooling fluid connection part 420 is similar to the first cooling fluid connection part 410 in structure, and includes a second connection seat 421 and a second connection 422, and the specific structure and connection manner are similar to those of the first cooling fluid connection part 410, and will not be described again.

For ease of understanding, the embodiment shown in fig. 2 is taken as an example, wherein only one baffle 500 is provided in the housing 200, and the baffle 500 divides the coolant flow space into two coolant flow channels.

Referring to fig. 4A together, fig. 4A is a schematic structural diagram of a core of the heat exchange device, in which a structure of the cooling liquid connection pipe component is further shown, so as to explain a position of the cooling liquid interface and a flow path thereof.

In this embodiment, the flat tubes 121 of each flat tube group are arranged along the Z-axis direction, so the baffle 500 disposed in the housing 200 can only be located between two adjacent flat tube groups, and in the scheme shown in fig. 2 and 4A, it can be understood that two collecting portions correspond to two coolant flow channels, respectively, on the basis that the first collecting member 110a of the core 100 is divided into the first collecting portion and the second collecting portion.

In this embodiment, since the flat tubes 121 are arranged along the Z-axis direction, in order to facilitate the flow of the cooling liquid between the flat tubes 121, two cooling liquid ports 210 are respectively formed on two sidewalls of the housing 200, that is, after the cooling liquid flows into the housing 200 from one cooling liquid port 210, the cooling liquid can flow directly between the flat tubes 121, which is beneficial to the flow of the cooling liquid in the cooling liquid flow channel.

On the basis of providing two coolant flow passages, it is understood that two coolant ports 210 are located at the same end of the housing 200.

In the illustrated embodiment, the two coolant ports 210 are disposed at one end of the housing 200 near the second current collecting member 110b, and on this basis, one end of the baffle 500 disposed inside the housing 200 abuts against the second current collecting member 110b, so that the two coolant channels are blocked at the side where the second current collecting member 110b is located, and the coolant flowing in from one coolant port 210 is prevented from directly flowing out from the other coolant port 210 without flowing through the coolant channels; accordingly, the other end of the barrier 500 has a predetermined distance from the first collecting member 110a so that two coolant flow passages communicate at the side of the first collecting member 110 a.

It will be appreciated that the upper and lower ends of the baffle plate 500 should be abutted against the top and bottom walls of the case 200, respectively, so that the two coolant flow passages communicate only on the side where the first collecting member 110a is located.

In a specific aspect, positioning grooves adapted to the baffle 500 may be provided at corresponding positions of the bottom wall and the top wall of the housing 200, so as to facilitate the installation of the baffle 500 and the housing 200.

Specifically, two parallel protruding strips can be fixedly connected at a proper position of the bottom wall or the top wall of the housing 200, and a positioning groove adapted to the baffle 500 is formed between the two protruding strips.

In actual installation, the baffle 500 may also abut against the first collecting member 110a, and a notch structure or a through hole structure may be formed at one end of the baffle near the first collecting member 110a, so that the two coolant flow channels are communicated on the side where the first collecting member 110a is located through the notch structure or the through hole structure.

Assuming that the first coolant takeover member 410 is a coolant inlet line and the second coolant takeover member 420 is a coolant outlet line in the orientation shown in fig. 4A, the flow path of the coolant within the heat exchange device is:

after the cooling liquid in the first cooling liquid pipe connecting member 410 flows into the casing 200 through the corresponding cooling liquid interface 210, the cooling liquid directly flows between the flat pipes 121 of the first flat pipe group 120a, under the barrier effect of the barrier 500, the cooling liquid can only flow from the second current collecting member 110b to the first current collecting member 110a along the cooling liquid flow path on the left side of the barrier 500, and when the cooling liquid flows to the position of the first current collecting member 110a, the cooling liquid can flow from the left side of the barrier 500 to the right side of the barrier 500 due to the preset distance between the barrier 500 and the first current collecting member 110a, and flow from the first current collecting member 110a to the second current collecting member 110b along the cooling liquid flow path on the right side of the barrier 500, and when the cooling liquid flows to the position of the second current collecting member 110b, the cooling liquid can flow out of the second cooling liquid pipe connecting member 420 through the cooling liquid interface 210 on the corresponding position due to the barrier effect of the barrier 500.

In the examples shown in fig. 4 and 4A, in the corresponding refrigerant flow channel and cooling liquid flow channel, the flow direction of the refrigerant is opposite to the flow direction of the cooling liquid, and it is understood that in actual arrangement, the flow direction of the refrigerant and the flow direction of the cooling liquid can be the same by changing the inlet and outlet.

It should be noted here that in the above-described embodiment, the coolant flow passage is divided into two, but in a practical arrangement, the coolant flow passage may be divided into three or other numbers.

In a specific scheme, the heat exchange device further comprises a plurality of fins arranged in the shell 200, wherein the fins are positioned between two adjacent flat tubes 121 or between the flat tubes 121 and the shell 200 so as to strengthen heat exchange.

In particular, the fins may be in a continuous corrugated structure or a square wave structure, etc., to increase the heat exchange area.

Specifically, the extending direction of the fins may be consistent with the length direction of the flat tube 121, may be perpendicular to the length direction of the flat tube 121, or may be in other forms, two adjacent fins may be staggered with each other, and different arrangement modes of the fins affect the heat exchange effect, and may be actually set according to specific requirements.

Specifically, structures such as protruding points or protruding edges can be arranged on the surfaces of the fins so as to strengthen the heat exchange effect.

The heat exchange device provided by the invention is described in detail above. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.

Claims

1. The heat exchange device comprises a core body and a shell body, and is characterized in that the core body comprises a first current collecting part and a second current collecting part which are oppositely arranged, and a flat pipe part is arranged between the first current collecting part and the second current collecting part;

the first current collecting part is provided with a current collecting cavity, and comprises a first current collecting part and a second current collecting part, and a separator is arranged between the first current collecting part and the second current collecting part; a plurality of flat tubes of the first flat tube group are stacked along the width direction of the first current collecting part, and each flat tube is communicated with a current collecting cavity of the first current collecting part; a plurality of flat tubes of the second flat tube group are stacked along the width direction of the first current collecting part, and each flat tube is communicated with a current collecting cavity of the second current collecting part; the manifold of the first manifold part is communicated with the manifold of the second manifold part through the manifold of the first flat tube group, the manifold of the second manifold part and the second flat tube group;

the second current collecting part comprises a main body part, a first end plate and a second end plate, the current collecting cavity of the second current collecting part is positioned in the main body part, the first end plate and the second end plate cover the two ends of the current collecting cavity of the first current collecting part, and the main body part 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 a flow collecting cavity of the second flow collecting part into more than two flow collecting channels which are arranged in parallel and communicated with each other;

the second wall plate is provided with a plurality of jacks matched with the flat pipe.

2. The heat exchange device of claim 1 wherein the manifold of the first header has more than two side-by-side and intercommunicating manifold channels and the manifold of the second header has more than two side-by-side and intercommunicating manifold channels; the flow collecting channels of each first flow collecting part are communicated with the flow collecting cavities of the second flow collecting parts through the first flat pipe groups, and the flow collecting channels of each second flow collecting part are communicated with the flow collecting cavities of the second flow collecting parts through the second flat pipe groups.

3. The heat exchange device of claim 1 wherein the first header member includes a body member, a first end plate and a second end plate, the header of the first header member being located within the body member, the first end plate and the second end plate capping both ends of the header of the first header member, the body member including a first wall plate portion, a second wall plate portion and two side plate portions;

the first wall plate is provided with one partition plate which extends towards the second wall plate and is in contact with the second wall plate, and the partition plate divides the first current collecting part into the first current collecting part and the second current collecting part;

4. A heat exchange device according to claim 3, wherein the body member is provided with slots having outward openings at positions near both ends of the manifold of the first manifold member, the first end plate and the second end plate are shaped to fit into the slots, and the first end plate and the second end plate are inserted into the slots and the joints are sealed.

5. A heat exchange device according to claim 3, wherein the first end plate is provided with a first fluid port in communication with the manifold of the first header and a second fluid port in communication with the manifold of the second header;

the heat exchange device further comprises a first interface seat and a second interface seat, wherein the first interface seat comprises a first adapter seat and a first adapter seat, and the second interface seat comprises a second adapter seat and a second adapter seat;

the first connecting pipe seat is provided with a first interface, the second connecting pipe seat is provided with a second interface, the first connecting pipe seat is fixed with the first end plate through the first connecting seat, and the second connecting pipe seat is fixed with the first end plate through the second connecting seat; the first interface is communicated with the manifold of the first current collecting part through the first fluid interface, and the second interface is communicated with the manifold of the second current collecting part through the second fluid interface.

6. The heat exchange device of claim 1 wherein the body member has slots with outward openings at positions near the ends of the manifold of the second manifold member, the first end plate and the second end plate being shaped to fit into the slots, the first end plate and the second end plate being inserted into the slots and the joints being sealed.

7. The heat exchange device according to any one of claims 1 to 6, wherein one or more baffle plates are provided in the housing, one end of the baffle plates is kept a predetermined distance from one of the first flow collecting member and the second flow collecting member, the other end of the baffle plates is fixed to the other one of the first flow collecting member and the second flow collecting member, both side portions of the baffle plates are fixed to an inner wall of the housing to partition the coolant flow space into two or more coolant flow passages juxtaposed and communicating with each other, and configured to: one end of each two adjacent cooling liquid flow channels is separated, and the other ends are communicated;

the shell is provided with two cooling liquid interfaces which are respectively communicated with the two cooling liquid channels positioned on the outer side.

8. The heat exchange device according to claim 7, wherein two of said coolant ports are formed in two opposite side walls of said housing, respectively, and both of said side walls are arranged along a length direction of said first collecting member;

the shell is internally provided with a plurality of fins, and the fins are arranged between two adjacent flat pipes or between the flat pipes and the shell.

9. The heat exchange device of claim 2 wherein the number of manifold channels of the first manifold member is the same as the number of manifold channels of the second manifold member; the number of the current collecting flow passages is 2-10, and the equivalent diameter of the cross section of the current collecting flow passages is 5-25 mm;

the flat pipe is provided with more than two circulation holes, each circulation hole is distributed along the width direction of the flat pipe, the equivalent aperture range of each circulation hole is 0.3-1.5 mm, and the hole center distance of two adjacent circulation holes is 0.5-2.5 mm.