CN112444147A

CN112444147A - Heat exchanger

Info

Publication number: CN112444147A
Application number: CN201910815753.0A
Authority: CN
Inventors: 王唯全; 史鑫; 张伟伟; 唐钦远
Original assignee: Hangzhou Sanhua Research Institute Co Ltd
Current assignee: Hangzhou Sanhua Research Institute Co Ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2021-03-05

Abstract

The application provides a heat exchanger, which comprises a current collecting piece and a heat exchange piece, wherein the current collecting piece comprises a main body and a reinforcing piece; a mounting opening is formed in one side of the main body, the heat exchange piece is inserted into the mounting opening, an inner cavity of the heat exchange piece is communicated with an inner cavity of the main body, and the heat exchange piece is hermetically connected with a pipe wall of the main body, which is located at the mounting opening; the reinforcing part is at least partially accommodated in the inner cavity of the main body, the reinforcing part is arranged along the length direction of the main body and connected to the inner wall of the main body, the inner cavity of the main body is divided into at least two circulation channels by the reinforcing part, a communication part is arranged on the reinforcing part, and the at least two circulation channels are mutually communicated through the communication part. This application can improve the intensity of mass flow piece, promotes the blast resistant ability of mass flow piece.

Description

Heat exchanger

Technical Field

The application relates to the technical field of heat exchange, in particular to a heat exchanger.

Background

Heat exchangers, also known as heat exchangers, are widely used in heat exchange systems (e.g., air conditioning systems). The heat exchanger comprises a heat exchange part and a flow collecting part, wherein the refrigerant enters the flow collecting part and then flows into the heat exchange part from the flow collecting part for heat exchange.

By using CO₂The heat exchanger as the refrigerant has high system working pressure, and the refrigerant generates high pressure in the collecting piece, so that the strength requirement on the collecting piece is high, and the collecting piece structure in the related technology is difficult to meet the pressure requirement.

Disclosure of Invention

The present application provides a heat exchanger to improve the strength of a manifold.

The present application provides a heat exchanger comprising a header and a heat transfer element, the header comprising:

the heat exchange device comprises a main body, wherein a mounting opening is formed in one side of the main body, the heat exchange piece is inserted into the mounting opening, an inner cavity of the heat exchange piece is communicated with an inner cavity of the main body, and the heat exchange piece is hermetically connected with a pipe wall of the main body, which is positioned at the mounting opening;

the reinforcing piece is accommodated in the inner cavity of the main body, the reinforcing piece is arranged along the length direction of the main body and connected to the inner wall of the main body, the inner cavity of the main body is divided into at least two circulation channels by the reinforcing piece, a communication part is arranged on the reinforcing piece, and the at least two circulation channels are mutually communicated through the communication part.

Optionally, the reinforcing member includes a connecting groove formed in the communicating portion, the connecting groove faces the mounting opening and corresponds to the mounting opening, the heat exchange member is inserted into the connecting groove and is fixedly connected to a groove wall of the connecting groove, and a gap is formed between an end of the heat exchange member and a groove bottom of the connecting groove.

Optionally, the reinforcement includes a first rib and a second rib, the first rib and the second rib are both connected to the inner wall of the main body, the inner cavity of the flow collecting piece is divided into three circulation channels through the first rib and the second rib, and the first rib and the second rib are both provided with the communicating portion.

Optionally, the inner wall of the main body is provided with a groove portion, and the first rib and the second rib are respectively connected in the corresponding groove portion.

Optionally, the groove depth of the groove portion is 0.1 to 0.3 times the wall thickness of the main body.

Optionally, the first ribs and the second ribs are symmetrically distributed on two sides of the central plane of the main body and inclined with respect to the central plane of the main body, and an included angle between the first ribs and the second ribs is 70 ° to 110 °.

Optionally, the thickness of the first rib and the second rib is 0.8 to 1.2 times the wall thickness of the main body.

Optionally, the reinforcement further comprises a connecting rib and a flanging;

the connecting rib is connected between the first rib and the second rib, and the flanges are respectively arranged on one sides of the first rib and the second rib far away from the connecting rib;

in the cross section of the main body, the connecting rib and the flanging respectively form two opposite ends of the reinforcing piece, and the connecting rib and the flanging are respectively connected to the inner wall of the main body.

Optionally, the body is substantially elliptical in cross-section;

the reinforcing members are connected to opposite sides of an inner wall of the main body in a minor axis direction of the ellipse.

Optionally, two ends of the main body along the long axis direction of the ellipse are arranged to be flat.

The technical scheme is as follows: the present application provides a heat exchanger manifold comprising a body and a strength member; the inner chamber in the main part is held to the reinforcement, and the reinforcement sets up and connects in the inner wall of main part along the length direction of main part, and the reinforcement is cut apart into two at least circulation passageways with the inner chamber of main part, forms the traction effect through the reinforcement between the inner wall of main part, has effectively strengthened the intensity of mass flow piece.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

FIG. 1 is a schematic structural diagram of a heat exchanger provided in an embodiment of the present application;

FIG. 2 is a schematic diagram illustrating a refrigerant flow path of the heat exchanger shown in FIG. 1;

FIG. 3 is an exploded view of the heat exchanger of FIG. 1;

FIG. 4 is a schematic cross-sectional view of the heat exchanger of FIG. 1;

FIG. 5 is an enlarged view of a portion of FIG. 4;

fig. 6 is a schematic structural diagram of a current collector provided in an embodiment of the present application;

FIG. 7 is a schematic structural diagram of a reinforcing member provided in an embodiment of the present application;

FIG. 8 is a schematic view of a structure of a stiffener engaged with a main body according to an embodiment of the present disclosure;

FIG. 9 is a schematic view of another embodiment of a reinforcement member and a body of the present application;

FIG. 10 is a schematic structural view of the body of FIG. 9;

FIG. 11 is a schematic view of a further embodiment of a reinforcement member and a body of the present application;

fig. 12 is a schematic structural diagram of a socket according to an embodiment of the present application;

fig. 13 is a schematic view of a fitting structure of a separator and a current collector according to an embodiment of the present application.

Reference numerals:

1-a current collector;

10-a body;

100-a flow-through channel;

101-a communication port;

102-a mounting port;

103-slot;

103 a-a first groove segment;

103 b-a second groove segment;

104-groove section;

106-plane;

108-media port;

109-media linker;

12-a reinforcement;

120-a first rib;

122-second ribs;

124-connecting ribs;

126-flanging;

128-a communication section;

128 a-connecting groove;

14-a separator;

1 a-a first current collector;

1 b-a second current collector;

1 c-a third current collector;

1 d-a fourth current collector;

2-heat exchange pieces;

3-heat exchange fins.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

In the description of the present application, unless explicitly stated or limited otherwise, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless specified or indicated otherwise; the terms "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, integrally connected, or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present application, it should be understood that the terms "upper" and "lower" used in the description of the embodiments of the present application are used in a descriptive sense only and not for purposes of limitation. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.

As shown in fig. 1 to 13, the present embodiment provides a heat exchanger, which includes a current collecting member 1 and a heat exchanging member 2, where the heat exchanging member 2 may be a tubular structure such as a microchannel flat tube, and the current collecting member 1 includes a main body 10 and a reinforcing member 12. One side of main part 10 is provided with installing port 102, and heat exchange member 2 inserts installing port 102, and the inner chamber of heat exchange member 2 and the inner chamber of main part 10 communicate, and heat exchange member 2 and the lateral wall sealing connection that main part 10 is located installing port 102 department prevent that the refrigerant from revealing along the clearance between mass flow piece 1 and the heat exchange member 2. The reinforcing part 12 is accommodated in the inner cavity of the main body 10, the reinforcing part 12 is arranged along the length direction of the main body 10 and connected to the inner wall of the main body 10, the reinforcing part 12 divides the inner cavity of the main body 10 into at least two flow channels 100, and a traction effect is formed between the inner walls of the main body 10 through the reinforcing part 12, so that the side wall of the main body 10 is prevented from expanding outwards under the action of refrigerant pressure, the main body 10 is prevented from deforming or bursting, the strength of the collecting part 1 is effectively enhanced, and the explosion-proof capability of the collecting part 1 is improved; the reinforcement 12 is provided with a communication portion 128, and the communication portions 128 are used for communicating the flow channels 100 with each other, so as to perform the functions of uniform flow distribution and partial pressure, and prevent the main body 10 from being deformed or exploded due to excessive local pressure in the main body 10. In addition, since the reinforcing member 12 is added to the body 10, the strength of the header 1 can be increased, so that the thickness of the body 10 can be appropriately reduced, the size and weight of the header 1 can be reduced, and the overall size of the heat exchanger can be reduced.

Two ends of the flow collecting piece 1 can be blocked by blocking caps or partition plates 14, slots 103 are respectively arranged on the main body 10 close to the two ends of the flow collecting piece 1, and the partition plates 14 are inserted into the slots 103 to block the two ends of the flow collecting piece 1, so that the partition plates 14 are prevented from falling off under the pressure action of a refrigerant; the insertion groove 103 may penetrate through the body 10 in a radial direction of the body 10 to increase a connection area of the partition 14 and the insertion groove 103, and increase connection strength; the insertion groove 103 may be configured as a stepped groove or a tapered groove, that is, in the cross section of the main body 10, along the radial direction of the main body 10, the groove width of the insertion groove 103 may be gradually reduced or gradually reduced to facilitate the precise positioning of the partition 14 and the installation of the partition 14.

For example, referring to fig. 12, the insertion groove 103 may include a first groove segment 103a and a second groove segment 103b, where the first groove segment 103a and the second groove segment 103b are respectively disposed on two opposite sidewalls of the main body 10 and respectively penetrate through the corresponding sidewalls, so that the insertion groove 103 penetrates through the main body 10 along a radial direction of the main body 10; the width of the first groove section 103a is greater than the width of the inner cavity of the main body 10 to form a limiting shoulder 103c, and the first groove section 103a penetrates through the side wall of the main body 10 in the width direction of the slot 103, so that the slot 103 is more convenient to process; the second groove segment 103b has a groove width smaller than the width of the inner cavity of the main body 10. Accordingly, the cross-section of the partition 14 should be provided in a stepped shape to fit the insertion groove 103 and the inner cavity of the body 10.

A reinforcing member 12 may be disposed in the main body 10, and the reinforcing member 12 extends along the length direction of the main body 10 to be close to two ends of the main body 10; a plurality of reinforcing members 12 may be provided in the body 10, and the plurality of reinforcing members 12 may be arranged in series along the longitudinal direction of the body 10.

Specifically, the heat exchanger provided in the embodiment of the present application at least includes a row of heat exchanging elements 2, two ends of each heat exchanging element 2 are respectively provided with a collecting element 1, the collecting element 1 may be provided with a medium port 108, and a refrigerant may flow into the heat exchanger from the medium port 108 or flow out of the heat exchanger from the medium port 108; the medium port 108 may be provided with a medium joint 109 to facilitate connection of the collecting member 1 with an external pipe of the refrigerant. It can be understood that, when the heat exchanger provided in the embodiment of the present application includes two or more rows of heat exchanging elements 2, two adjacent rows of heat exchanging elements 2 may be communicated with each other according to the flow path of the refrigerant.

In one embodiment, the refrigerant may flow in one direction inside the heat exchanger, i.e. the refrigerant flows into the heat exchanger from the header 1 at one end of the heat exchanger 2 and flows out of the heat exchanger from the header 1 at the other end of the heat exchanger 2.

In another embodiment, referring to fig. 4, the refrigerant may also flow in an S-shaped direction inside the heat exchanger, that is, along the length direction of the main body 10, the inner cavity of the collecting member 1 may be divided into at least two inner cavity sections separated from each other by the partition plate 14, and the refrigerant may repeatedly flow between the two collecting members 1 and flow through each inner cavity section to form an S-shaped flow path.

Referring to fig. 1-5, the heat exchanger provided in this embodiment is a two-row, four-pass heat exchanger. That is, the heat exchanger includes two rows of heat exchanging elements 2, a first collecting element 1a and a second collecting element 1b are respectively disposed at both ends of the first row of heat exchanging elements, and a third collecting element 1c and a fourth collecting element 1d are respectively disposed at both ends of the second row of heat exchanging elements; the first current collecting piece 1a and the third current collecting piece 1c are positioned at the same end of the heat exchanging piece 2 and are communicated with each other; the second current collector 1b and the fourth current collector 1d are located at the other end of the heat exchanging element 2 and are isolated from each other.

The first collecting piece 1a and the third collecting piece 1c are respectively provided with a medium port 108 and a communication port 101, and the first collecting piece 1a and the third collecting piece 1c can be communicated through the communication port 101; the first collecting member 1a and the third collecting member 1c are respectively provided with a separator 14 at the middle thereof, and the medium port 108 and the communication port 101 are respectively located at both sides of the separator 14.

Referring to fig. 2, the refrigerant flow path of the double-row four-flow heat exchanger provided in this embodiment is as follows: in the first process, a refrigerant enters one side of the inner partition plate 14 of the first current collecting piece 1a from a medium port, and the heat exchange piece 2 flows into the second current collecting piece 1 b; in the second flow, the refrigerant flows along the second collecting part 1b and flows into the other side of the inner partition plate 14 of the first collecting part 1a through the heat exchange part 2; in the third flow, the refrigerant passes through the communication port 101, enters one side of the partition plate 14 in the third collecting part 1c, and flows into the fourth collecting part 1d along the heat exchanging part 2; in the fourth flow, the refrigerant flows along the fourth collecting member 1d and flows into the other side of the partition 14 in the third collecting member 1c through the heat exchanging member 2, and the refrigerant flows out through the medium port 108 formed in the third collecting member 1 c.

Optionally, the cross section of the main body 10 provided by the embodiment of the present application is configured to be elliptical, so as to reduce the size of the main body 10, thereby making the overall structure of the heat exchanger more compact; the reinforcing members 12 are connected to opposite sides of the inner wall of the main body 10 in the minor axis direction of the ellipse, and a traction effect is formed between the two inner walls of the main body 10 in the minor axis direction of the ellipse by the reinforcing members 12, so that the side wall of the main body 10 is prevented from expanding outwards under the pressure of a refrigerant, and the main body 10 is prevented from deforming or bursting. The ratio range of the long axis to the short axis of the main body 10 can be 1.2-1.5, so that the section of the main body 10 can adapt to the installation of the heat exchange piece 2 and the flowing requirement of a refrigerant; when the ratio of the major axis to the minor axis of the body 10 is below 1.2, the body 10 is approximately circular, and the body 10 still has a larger size; when the ratio of the major axis to the minor axis of the main body 10 is higher than 1.5, the shape of the main body 10 is too flat, and the gap between the end of the heat exchange member 2 and the inner wall of the main body 10 is too small, resulting in poor flow of the refrigerant.

Alternatively, the two ends of the main body 10 in the major axis direction of the ellipse may be provided as flat surfaces 106, and the two flat surfaces 106 are connected by a circular arc surface, that is, the cross section of the main body 10 is provided to be approximately elliptical, and the width of the flat surface 106 may be provided to be half of the minor axis of the ellipse. On one hand, because the volume in the inner cavity of the main body 10 is obviously reduced near the two ends of the major axis direction of the ellipse, the depth of the heat exchange piece 2 inserted into the current collecting piece 1 is easily too small, or the current collecting piece 1 shields the heat exchange piece 2 to block the flow of the refrigerant, the plane 106 is arranged to be parallel to the axis of the heat exchange piece 2, the heat exchange piece 2 can be conveniently installed, and the refrigerant can flow more smoothly; on the other hand, when the heat exchanger comprises at least two rows of heat exchange pieces 2, the distance between two adjacent collecting pieces 1 can be reduced by arranging the plane 106, the contact area between two adjacent collecting pieces 1 is increased, the communication port 101 can be directly arranged on the plane 106, and the plane 106 between two adjacent collecting pieces 1 is attached, so that the communication between two adjacent collecting pieces 1 is realized, the structure is compact, and the leakage is not easy to occur. Specifically, after the planes 106 between two adjacent current collecting pieces 1 are attached to each other, the corresponding communicating ports 101 on the two current collecting pieces 1 are in butt joint, the planes 106 can be in sealed connection through brazing, in the brazing process, the brazing filler metal can be filled in the splicing seam between the planes 106 and plug the splicing area of the communicating ports 101 along the edges of the communicating ports, so that a channel is formed between the two communicating ports 101, and the refrigerant is prevented from leaking along the splicing seam.

When two adjacent current collectors 1 are attached to each other by the flat surface 106, the slots 103 provided in the two adjacent current collectors 1 are connected to each other, and the separators 14 in the two adjacent slots 103 may be integrally connected to each other, that is, may be simultaneously inserted into the slots 103 of the two adjacent current collectors 1 through the same separator 14 (see fig. 13). On one hand, the number of parts of the heat exchanger can be reduced, and the assembly process of the heat exchanger is simplified; on the other hand, the positioning and fixing functions can be performed on two adjacent current collecting pieces 1, and the reliability of connection between the two current collecting pieces 1 is improved.

Alternatively, referring to fig. 5 to 7, the reinforcing member 12 may include a connecting groove 128a formed in the communicating portion 128, the connecting groove 128a facing the mounting opening 102 and corresponding to the mounting opening 102, so as to avoid interference of the reinforcing member 12 with the heat exchanging member 2, which affects the depth of insertion of the heat exchanging member 2 into the current collecting member 1; the heat exchange element 2 is inserted into the connecting groove 128a and fixedly connected with the groove wall of the connecting groove 128a, so that the connecting strength of the reinforcing element 12 is increased, and the reinforcing element 12 is prevented from shaking or moving under the impact of a refrigerant; a gap is formed between the end of the heat exchange member 2 and the bottom of the connecting groove 128a, and the adjacent flow passages 100 are communicated with each other through the gap, so that the heat exchange member 2 is prevented from blocking the connecting groove 128a, and the refrigerant is prevented from generating large impact on the bottom of the connecting groove 128 a.

The width of the connecting groove 128a should be slightly larger than the width of the heat exchanging element 2, so that a gap of 0.2 mm-0.3 mm is formed between the heat exchanging element 2 and the connecting groove 128a after the heat exchanging element 2 is inserted into the connecting groove 128a, and when the heat exchanging element 2 is fixed by brazing, a capillary phenomenon can be generated at the gap, so that the welding is more uniform and reliable.

Alternatively, referring to fig. 8 to 11, the reinforcing member 12 includes a first rib 120 and a second rib 122 disposed at an interval, the first rib 120 and the second rib 122 are both connected to the inner wall of the main body 10, the inner cavity of the current collector 1 is divided into three flow channels 100 by the first rib 120 and the second rib 122, and the communicating portion 128 is disposed on the first rib 120 and the second rib 122. The reinforcing part 12 has smaller thickness, the resistance of the refrigerant flowing between the adjacent flow channels 100 is reduced, and the medium is distributed more uniformly in the flow collecting part 1; and the shielding of the heat exchange part 2 by the reinforcing part 12 can be reduced, so that the flow of the refrigerant is smoother. Especially when heat transfer member 2 adopts the microchannel flat tube, first muscle 120 and second muscle 122 can avoid the microchannel on the heat transfer member 2, that is to say, the long limit of the cross section of heat transfer member 2 is far greater than the minor face, it has a plurality of microchannels that arrange in proper order along the long limit direction of flat pipe to distribute in the heat transfer member 2, the space has between two adjacent microchannels, the both ends of microchannel run through the both ends of heat transfer member 2 respectively, the refrigerant flows in the microchannel that sets up in the heat transfer member 2, the area of contact of refrigerant and heat transfer member 30 has been increased, the heat exchange efficiency of refrigerant has been improved, first muscle 120 and second muscle 122 avoid the microchannel and connect the space between the microchannel, prevent that the refrigerant in the microchannel from directly impacting reinforcement 12.

It will be appreciated that the reinforcement 12 may also comprise only one rib or more than two ribs. When the reinforcing member 12 includes only one rib, the reinforcing member 12 is connected to the inner wall of the main body 10 by the rib. When the reinforcing member 12 includes two or more ribs, a plurality of ribs may be provided at intervals; or the plurality of ribs may be arranged in a radial structure outward from the center of the body 10, that is, in the cross section of the body 10, one ends of the plurality of ribs near the center of the body 10 are connected to each other, and one ends of the plurality of ribs far from the center of the body 10 are respectively connected to the inner wall of the body 10.

The reinforcing member 12 may be integrally formed with the main body 10 (see fig. 11, for example, by extrusion molding), the reinforcing member 12 may also be provided as two separate components with the main body 10 (see fig. 8 and 9), and the reinforcing member 12 may be provided with a composite layer and fixed in the main body 10 by welding or the like.

When the reinforcement member 12 and the main body 10 are provided as two separate members, the inner wall of the main body 10 may be provided with a groove portion 104 (see fig. 9 and 10), the groove portion 104 extending along the length direction of the main body 10 to form a mounting rail of the reinforcement member 12, that is, the reinforcement member 12 can slide along the groove portion 104 from one end of the main body 10 until the reinforcement member 12 is mounted to a predetermined position; first muscle 120 and second muscle 122 are connected respectively in corresponding concave part 104, realize the prepositioning of first muscle 120 and second muscle 122 through concave part 104, prevent among the welding process, first muscle 120 or second muscle 122 remove or rock, influence the relative position relation between first muscle 120 or second muscle 122 and heat exchanger 2.

Optionally, the groove depth of the groove portion 104 is 0.1 to 0.3 times the wall thickness of the main body 10, which can not only provide a good fixing effect for the reinforcement 12, but also provide a high strength for the main body 10. That is, when the groove depth of the groove portion 104 is less than 0.1 times the wall thickness of the main body 10, the reinforcing member 12 easily slips along the edge of the groove portion 104, thereby causing the groove portion 104 to lose the pre-fixing effect on the reinforcing member 12; when the groove depth of the groove portion 104 is greater than 0.3 times the wall thickness of the main body 10, a local thickness of the main body 10 is caused to be excessively thin, so that the main body 10 is easily damaged at the groove portion 104.

Optionally, the first ribs 120 and the second ribs 122 are symmetrically distributed on two sides of a central plane of the main body 10 (for example, when the cross section of the main body 10 is an ellipse, the central plane of the main body 10 is a plane formed by translating a minor axis of the ellipse along an axis of the main body 10), so as to uniformly reinforce the main body 10; the first rib 120 and the second rib 122 are inclined relative to the central plane of the main body 10, and the included angle between the first rib 120 and the second rib 122 is 70 degrees to 110 degrees, that is, the included angle between the central plane of the first rib 120 and the main body 10 and the included angle between the central plane of the second rib 122 and the main body 10 are equal to the included angle between the central plane of the second rib 122 and the central plane of the main body 10, and are 35 degrees to 55 degrees, so that the stability of the first rib 120 and the second rib 122 is enhanced, and the first rib 120 and the second rib 122 can be in a better stress state.

Optionally, the thickness of the first rib 120 is 0.8 to 1.2 times the wall thickness of the main body 10, and the thickness of the second rib 122 is also 0.8 to 1.2 times the wall thickness of the main body 10, so that the strength of the first rib 120 and the strength of the second rib 122 are matched with the strength of the main body 10, and the thickness of the first rib 120 and the thickness of the second rib 122 may be the same or different. When the thickness of the first rib 120 and the thickness of the second rib 122 are both less than 0.8 times of the wall thickness of the main body 10, under the pressure of the refrigerant, the first rib 120 or the second rib 122 may be damaged prior to the main body 10, so that the reinforcing member 12 loses the reinforcing effect; when the thickness of the first rib 120 and the second rib 122 is greater than 1.2 times of the wall thickness of the main body 10, the first rib 120 and the second rib 122 occupy a larger volume in the inner cavity of the main body 10, resulting in a reduction in the effective volume of the inner cavity of the main body 10, thereby affecting the flow of the refrigerant and reducing the heat exchange efficiency.

Optionally, referring to fig. 8, the reinforcing member 12 may further include a connecting rib 124 and a flange 126, so that the installation and positioning of the reinforcing member 12 are more convenient, and the connection area between the reinforcing member 12 and the inner cavity of the main body 10 can be increased, thereby increasing the connection strength between the reinforcing member 12 and the main body 10, and better enhancing the overall strength of the current collector 1, wherein the connecting rib 124 and the flange 126 may be integrally formed with the first rib 120 and the second rib 122, or may be respectively provided as separate components and connected to each other by welding or the like.

The connecting rib 124 is connected between the first rib 120 and the second rib 122, and the flanges 126 are respectively arranged on the sides of the first rib 120 and the second rib 122 far away from the connecting rib 124 to form a structure similar to a Chinese character 'ji'; in the cross section of the main body 10, the connecting rib 124 and the flange 126 respectively form two opposite ends of the reinforcement 12, the connecting rib 124 and the flange 126 are respectively connected to the inner wall of the main body 10, and the connecting rib 124 and the flange 126 should be adapted to the inner wall of the main body 10, so that the connecting rib 124 and the flange 126 can be respectively attached to the inner cavity of the main body 10, and an effective connection area as large as possible is formed.

It can be understood that the first rib 120 and the second rib 122 may also be directly connected without the connecting rib 124, that is, the ends of the first rib 120 and the second rib 122 close to each other are directly connected to form a structure similar to a V shape, so as to simplify the structure of the reinforcing member 12, and facilitate the processing and manufacturing of the reinforcing member 12.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A heat exchanger, characterized in that it comprises a collector (1) and a heat exchange element (2), said collector (1) comprising:

the heat exchange device comprises a main body (10), wherein a mounting opening (102) is formed in one side of the main body (10), the heat exchange piece (2) is inserted into the mounting opening (102), an inner cavity of the heat exchange piece (2) is communicated with an inner cavity of the main body (10), and the heat exchange piece (2) is hermetically connected with a side wall of the main body (10) at the mounting opening (102);

the reinforcing piece (12), the inner chamber of main part (10) is held at least in part to reinforcing piece (12), reinforcing piece (12) set up and connect in the length direction of main part (10) the inner wall of main part (10), reinforcing piece (12) will the inner chamber of main part (10) divide into two at least circulation passageways (100), be provided with the intercommunication portion (128) on reinforcing piece (12), two at least circulation passageways (100) are through intercommunication portion (128) intercommunication each other.

2. The heat exchanger according to claim 1, wherein the reinforcing member (12) includes a connecting groove (128a) formed in the communicating portion (128), the connecting groove (128a) faces the mounting opening (102) and corresponds to the mounting opening (102), the heat exchanging member (2) is at least partially inserted into the connecting groove (128a) and is fixedly connected to a groove wall of the connecting groove (128a), and a gap is formed between an end of the heat exchanging member (2) and a groove bottom of the connecting groove (128 a).

3. The heat exchanger according to claim 1, characterized in that the reinforcement (12) comprises a first rib (120) and a second rib (122), the first rib (120) and the second rib (122) are both connected to the inner wall of the body (10), the inner cavity of the collector (1) is divided into three flow channels (100) by the first rib (120) and the second rib (122), and the first rib (120) and the second rib (122) are both provided with the communication portion (128).

4. The heat exchanger according to claim 3, wherein the inner wall of the main body (10) is provided with a groove portion (104), and the first rib (120) and the second rib (122) are respectively connected in the corresponding groove portion (104).

5. The heat exchanger according to claim 4, characterized in that the groove portion (104) has a groove depth of 0.1 to 0.3 times the wall thickness of the main body (10).

6. The heat exchanger according to claim 3, wherein the first ribs (120) and the second ribs (122) are symmetrically distributed on both sides of a central plane of the main body (10) and inclined with respect to the central plane of the main body (10), and an included angle between the first ribs (120) and the second ribs (122) is 70-110 °.

7. The heat exchanger according to claim 3, characterized in that the thickness of the first ribs (120) and/or the thickness of the second ribs (122) is between 0.8 and 1.2 times the wall thickness of the body (10).

8. A heat exchanger according to claim 3, wherein the reinforcement (12) further comprises a connecting rib (124) and a flange (126);

the connecting rib (124) is connected between the first rib (120) and the second rib (122), and the flanges (126) are respectively arranged on one sides of the first rib (120) and the second rib (122) far away from the connecting rib (124);

in the cross section of the main body (10), the connecting rib (124) and the flanging (126) respectively form two opposite ends of the reinforcing piece (12), and the connecting rib (124) and the flanging (126) are respectively connected to the inner wall of the main body (10).

9. The heat exchanger according to any one of claims 1 to 8, characterized in that the body (10) is substantially elliptical in cross-section;

the reinforcing members (12) are connected to opposite sides of the inner wall of the main body (10) in the direction of the minor axis of the ellipse.

10. The heat exchanger according to claim 9, wherein both ends of the main body (10) in the direction of the major axis of the ellipse are provided as flat surfaces (106).