CN112146475B

CN112146475B - Collecting pipe and heat exchanger

Info

Publication number: CN112146475B
Application number: CN201910579353.4A
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Hangzhou Sanhua Research Institute Co Ltd
Current assignee: Hangzhou Sanhua Research Institute Co Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2024-01-02
Anticipated expiration: 2039-06-28
Also published as: CN112146475A

Abstract

The application discloses a collecting pipe and a heat exchanger, wherein the collecting pipe comprises a first main body and a first main board which is used for coating at least part of the first main body, and the first main board is fixedly connected with the first main body; the first main body comprises a first side face, a second side face and a first channel, the second side face is parallel to the first channel, and the first hole is formed by the first channel penetrating through the first side face and/or the third side face; the first main board comprises a main body part and an extension part, the extension part is attached to the first side surface, the main body part is attached to the second side surface, and the extension part seals the first hole. The side of this application's first main part is formed with first hole, and first mainboard is equipped with extension, can pass through the effect that the first hole of extension shutoff was in order to reach sealed first passageway, reduces the part quantity that constitutes first pressure manifold, makes the structure of pressure manifold comparatively simple to can simplify the preparation technology of pressure manifold.

Description

Collecting pipe and heat exchanger

Technical Field

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

Background

Heat exchangers, also known as heat exchangers, are widely used in heat exchange systems, such as air conditioning systems. The heat exchanger can be used for heat exchange between the refrigerant and the outside air, and can also be used for heat exchange between the refrigerant and the cooling liquid. In the related art, a header of a heat exchanger includes a main body having a header channel, an end cap, and a main plate, the end cap and the main plate are fixed to the main body, respectively, by brazing, the end cap seals the header channel of the main body, and the inventor considers that the structure of the header has an improved need.

Disclosure of Invention

In view of the foregoing problems of the related art, the present application provides a header with a relatively simple structure.

In order to achieve the above purpose, the present application adopts the following technical scheme:

a header, comprising: a first main body and a first main board; the first main board is coated on at least part of the first main body, and is fixedly connected to the first main body; the first main body comprises a first side face, a second side face and a first channel, the second side face is parallel to the first channel, the first side face comprises a first hole, and the first hole is formed through the first side face for the first channel; the first main board comprises a main body part and an extension part, wherein the extension part is attached to the first side face, the main body part is attached to the second side face, and the extension part seals the first hole.

The first side of this application's first main part is formed with first hole, and first mainboard is equipped with extension, and extension laminating is in first side, can pass through the effect that the first hole of extension shutoff of first mainboard was in order to reach sealed first passageway, reduces the part quantity that constitutes first pressure manifold, makes the structure of pressure manifold comparatively simple to can simplify the preparation technology of pressure manifold.

Further, the extension part comprises a first extension part and a second extension part, and the first extension part and the second extension part are arranged on two opposite sides of the main body part at intervals; the first main body further comprises a third side surface, the first side surface and the third side surface are arranged in parallel with each other, the first channel is positioned between the first side surface and the third side surface, and the first side surface and the third side surface are perpendicular to the second side surface; the first extension portion is fixed to the first side face in a fitting mode, and the second extension portion is fixed to the third side face in a fitting mode.

Further, the first channel forms the first hole through the third side, the first extension seals the first hole of the first side, the second extension seals the first hole of the third side, and the first extension and the second extension are parallel to each other.

Further, the first main body further comprises at least one first through hole and at least one second through hole, the first main board comprises at least one third through hole and at least one fourth through hole, the number of the first through holes is the same as that of the third through holes and corresponds to the number of the fourth through holes one by one, the first collecting pipe further comprises a fastening piece, at least one fastening piece penetrates through the first through hole and the third through holes to be fixedly connected with the first main body and the first main board, at least one fastening piece penetrates through the second through holes and the fourth through holes to be fixedly connected with the first main body and the first main board, and the number of the fastening pieces is the same as the sum of the number of the first through holes and the number of the second through holes.

Further, the first body further includes a fourth side and a fifth side parallel to each other, each of the fourth side and the fifth side being perpendicular to the first side and the second side at the same time, the first channel being located between the fourth side and the fifth side; the first through hole and the second through hole penetrate through the first main body, the first through hole and the second through hole are formed in the first side face, the third through hole and the fourth through hole penetrate through the first main board, the first through hole and the third through hole are close to the fourth side face, and the second through hole and the fourth through hole are close to the fifth side face.

Further, the first main body further comprises a sixth side surface parallel to the second side surface, the first main board further comprises a third extension portion and a fourth extension portion, the third extension portion and the fourth extension portion are attached to the sixth side surface, the third extension portion is formed by extending one end, away from the main body portion, of the first extension portion in a direction parallel to the second side surface, the first main body is located between the third extension portion and the main body portion, the fourth extension portion is formed by extending one end, away from the main body portion, of the second extension portion in a direction parallel to the second side surface, and the first main body is located between the fourth extension portion and the main body portion.

Further, a protrusion is provided at a portion of the extension portion corresponding to the first hole, the protrusion is at least partially inserted into the first hole and is accommodated in the first channel, and the protrusion seals the first channel.

The application also provides a heat exchanger with the collecting pipe.

the utility model provides a heat exchanger, the heat exchanger includes first pressure manifold, second pressure manifold, heat exchange core, casing, first pressure manifold and second pressure manifold adopt the pressure manifold of arbitrary one of the above-mentioned, the heat exchange core includes the heat exchange tube, the heat exchange tube connects first pressure manifold with the second pressure manifold, the inner chamber intercommunication of heat exchange tube first pressure manifold with the inner chamber of second pressure manifold, the casing is located first pressure manifold with between the second pressure manifold, the one end seal of casing is fixed in first pressure manifold, the other end seal is fixed in the second pressure manifold, the casing encircles some the heat exchange core.

Further, the first main body further comprises a third hole, the third hole is communicated with the first channel, the first main board further comprises a fourth hole which is correspondingly arranged with the third hole, the end face of one end of the heat exchange tube penetrates through the fourth hole of the first collecting pipe and is accommodated in the third hole, and the end face of the other end of the heat exchange tube penetrates through the fourth hole of the second collecting pipe and is accommodated in the third hole.

Further, the first main board is provided with a concave portion, and the first main body is accommodated in the concave portion.

The utility model provides a heat exchanger's pressure manifold can be through the effect of the first hole of extension shutoff of first mainboard in order to reach sealed first passageway, reduces the part quantity that constitutes first pressure manifold, and the structure of pressure manifold is comparatively simple, can simplify the preparation technology of pressure manifold to can simplify the preparation technology of heat exchanger.

Drawings

FIG. 1 is a schematic diagram of an exploded construction of an embodiment of the present application;

fig. 2 is a schematic structural view of the first main body and the first main board shown in fig. 1;

FIG. 3 is a schematic view of the heat exchange core shown in FIG. 1;

FIG. 4 is a schematic structural view of the housing shown in FIG. 1;

fig. 5 is a schematic structural view of the distribution box shown in fig. 4;

FIG. 6 is a schematic view of the heat exchanger of FIG. 1 showing a housing of another embodiment;

FIG. 7 is a schematic view of a first housing having two outlets;

FIG. 8 is a schematic view of a first housing having three outlets;

FIG. 9 is a schematic view of the heat exchanger shell of FIG. 1 in another embodiment;

fig. 10 is a schematic structural view of the second housing shown in fig. 9;

FIG. 11 is a schematic view of another embodiment of the present application;

Fig. 12 is a schematic structural view of the first main body and the first main board shown in fig. 11;

FIG. 13 is a schematic view of the first motherboard shown in FIG. 11 in another embodiment;

FIG. 14 is a schematic view of an exploded construction of yet another embodiment of the present application;

fig. 15 is a schematic structural view of the first main body and the first main board shown in fig. 14;

FIG. 16 is a schematic view of an exploded construction of yet another embodiment of the present application;

fig. 17 is an exploded view of the heat exchanger of the other embodiment of the first main plate shown in fig. 14.

In the figure: 1. a first header; 11. a first body; 111. a first side; 112. a second side; 1121. a second hole; 113. a third side; 114. a fourth side; 115. a fifth side; 116. a first channel; 117. a first hole; 118. a first through hole; 119. a second through hole; 12. a first main board; 121. a first extension; 122. a main body portion; 123. a second extension; 124. a third hole; 125. a third extension; 126. a fourth extension; 127. a third through hole; 128. a fourth through hole; 13. a fastener;

2. a second header;

3. a housing; 31. a first housing; 32. a second housing; 33. a fifth extension; 34. a sixth extension; 35. flanging; 36. a second positioning portion; 37. A fifth through hole; 38. A sixth through hole;

4. A heat exchange core; 41. A heat exchange tube; 42. A heat exchange member;

5. a dispensing box; 51. a receiving chamber; 52. a pipe orifice; 53. a first positioning portion;

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the accompanying claims.

The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the terms "first," "second," and the like, as used in the specification and the claims herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one; "plurality" means two and more than two. Unless otherwise indicated, the terms "front," "rear," "lower," and/or "upper" and the like are merely for convenience of description and are not limited to one location or one spatial orientation. The word "comprising" or "comprises", and the like, means that elements or items appearing before "comprising" or "comprising" are encompassed by the element or item recited after "comprising" or "comprising" and equivalents thereof, and that other elements or items are not excluded.

The header tank according to the exemplary embodiment of the present application will be described in detail with reference to the accompanying drawings. The features of the examples and embodiments described below may be supplemented or combined with one another without conflict.

The utility model provides a collecting pipe, which comprises a first main body 11 and a first main board 12, wherein the first main board 12 covers at least part of the first main body 11, and the first main board 12 is fixedly connected with the first main body 11; the first body 11 includes a first side 111, a second side 112, and a first channel 116, the second side 112 being parallel to the first channel 116, the first side 111 including a first hole 117, the first hole 117 being formed through the first side 111 for the first channel 116. The first main board 12 includes a main body 122 and an extension, the extension is attached to the first side 111, the main body 122 is attached to the second side 112, and the extension seals the first hole 117.

The first side 111 of the first main part 11 of this application is formed with first hole 117, and first mainboard 12 is equipped with the extension, and the extension laminating is fixed in first side 111, can pass through the first hole 117 of extension shutoff of first mainboard 12 in order to reach the effect first passageway 116 of sealed first passageway 116, reduces the part quantity that constitutes first pressure manifold 1, makes the structure of pressure manifold comparatively simple to can simplify the preparation technology of pressure manifold.

The application provides a heat exchanger, and the heat exchanger includes first pressure manifold 1 and second pressure manifold 2, and in this embodiment, the structure of first pressure manifold 1 and second pressure manifold 2 is basically the same, and description is given taking first pressure manifold 1 as an example.

The first collecting pipe 1 comprises a first main body 11 and a first main board 12, at least part of the first main body 11 is covered by the first main board 12, and the first main board 12 is fixedly connected to the first main body 11.

According to one embodiment of the present application, the first body 11 is a regular hexahedron, and as shown in fig. 1-5, the first body 11 has a plate shape with a width greater than a thickness and a length greater than a width. The first body 11 includes a first side 111, a second side 112, a third side 113, a fourth side 114, a fifth side 115, a sixth side (not shown), and a first channel 116. The first side 111 and the third side 113 are each provided with a first hole 117, and the first hole 117 is formed through the first side 111 and the third side 113 for the first channel 116. The first side 111 and the third side 113 are disposed parallel to each other, the second side 112 and the sixth side are parallel to each other, and the fourth side 114 and the fifth side 115 are parallel to each other. The first channel 116 is located between the first side 111 and the third side 113, also between the third side 113 and the sixth side, and also between the fourth side 114 and the fifth side 115, the first side 111 and the third side 113 being perpendicular to the second side 112, and the fourth side 114 and the fifth side 115 being perpendicular to the second side 112.

In this embodiment, as shown in fig. 2, the first body 11 includes at least one first channel 116, the first channel 116 extends in the up-down direction, and when two or more first channels 116 are provided, at least two first channels 116 are arranged in the left-right direction.

In the present embodiment, two or more first passages 116 are equally spaced apart from each other at equal intervals in a straight line in the center of the first body 11. The center of the first channel 116 may be understood as the center point of the cross-sectional shape, such as the center of a circle, the intersection of the major and minor axes of an ellipse, the intersection of three perpendicular lines of a triangle, etc. Optionally, the two or more first channels 116 are centered such that a straight line is substantially parallel to the second side 112 and centered between the first side 111 and/or the third side 113. Here, it should be understood that the centers of the two or more first passages 116 may be uniformly distributed at equal intervals, or may be uniformly distributed at unequal intervals; the centers of the two or more first passages 116 may be linearly distributed or may not be linearly distributed; when the first passages 116 are linearly distributed, a straight line formed by the centers of the two or more first passages 116 may be located in the middle of the first side 111 and/or the third side 113, or may not be located in the middle of the first side 111 and/or the third side 113, which is not limited in this application. The specific distribution of two or more first channels 116 can be matched with various designs according to the actual requirements in use.

In this embodiment, the cross sections of two or more first channels 116 are circles with identical shapes and sizes, the shapes and sizes of the cross sections of the first channels 116 are identical, the volumes of each first channel 116 are similar, and the distribution effect is more uniform. Here, it should be understood that the shape of the cross section of the first channel 116 is not limited, for example, the shape of the cross section of the first channel 116 may be circular, rectangular, kidney-shaped, or irregular; the cross-sections of the plurality of first channels 116 may or may not be the same size; the first channels 116 may be uniform channels or non-uniform channels, so long as the flow of the heat exchange medium is not affected, and the present application is not limited.

Alternatively, the first channel 116 may extend through only the first side 111, and the first hole 117 may be formed in the first side 111; the first hole 117 may be formed in the third side 113 by penetrating only the third side 113; the first hole 117 may be formed in both the first side 111 and the third side 113, i.e., at least one end of the first channel 116 may be formed with the first hole 117. The first passage 116 penetrates the first body 11 to form a first hole 117, and if the first passage 116 is a uniform passage, the first hole 117 has a shape and size corresponding to the shape and size of the cross section of the first passage 116. The cross-sectional shape of the first channel 116 can be set to be different in size according to the actual requirement in use.

In this embodiment, two or more first channels 116 are provided, and a middle rib (not shown) is disposed between two adjacent first channels 116 to enhance the strength of the first body 11, and separate two adjacent first channels 116, wherein the extending direction of the middle rib is substantially parallel to the extending direction of the first channels 116. In some embodiments, an opening is provided in the middle rib to allow two adjacent first channels 116 to communicate.

In the present embodiment, the first main board 12 includes a first extension portion 121, a main body portion 122, and a second extension portion 123, and the height of the main body portion 122 is less than or equal to the height of the second side surface 112. It should be understood that the height of the main body 122 is less than or equal to the height of the second side 112 means that the upper side of the main body 122 may be flush with the upper side of the second side 112 in the up-down direction, and the lower side of the main body 122 may be flush with the lower side of the second side 112; the upper side of the main body 122 may be lower than the upper side of the second side 112, and the lower side of the main body 122 may be higher than the lower side of the second side 112; the upper side of the main body 122 may be flush with the upper side of the second side 112, and the lower side of the main body 122 may be higher than the lower side of the second side 112; the upper side of the main body 122 may be lower than the upper side of the second side 112, and the lower side of the main body 122 may be flush with the lower side of the second side 112.

The first extension portion 121 is formed by extending an end of the main body portion 122 near the first side surface 111 in a direction parallel to the first side surface 111, and the second extension portion 123 is formed by extending an end of the main body portion 122 near the third side surface 113 in a direction parallel to the third side surface 113. Alternatively, the width of the main body 122 is the same as the width of the first side 111 in the left-right direction, and the projection of the main body 122 on the second side 112 completely coincides with the second side 112.

The first main board 12 is fixedly connected to the first main body 11, the first extension portion 121 is attached to the first side 111, the main body portion 122 is attached to the second side 112, and the second extension portion 123 is attached to the third side 113. Optionally, the first extension portion 121 is fixed to the first side 111 by brazing, the second extension portion 123 is fixed to the third side 113 by brazing, and the main body portion 122 is attached to the second side 112, so as to realize the fixed connection between the first main board 12 and the first main body 11; optionally, the main body 122 is soldered to the second side 112, the first extension 121 is attached to the first side 111, and the second extension 123 is attached to the third side 113, so as to achieve a fixed connection between the first main board 12 and the first main body 11, but at this time, the first extension 121 and/or the second extension 123 needs to meet the requirement of sealing the first hole 117. The first main board 12 and the first main body 11 may be partially contacted to achieve a fixed connection, but the first main board 12 needs to meet the requirement of sealing the first hole 117.

In the present embodiment, the first side 111 and the third side 113 are each provided with the first hole 117, at least all of the first holes 117 are covered by the portion where the first extension 121 coincides with the first side 111, at least all of the first holes 117 are covered by the portion where the second extension 123 coincides with the third side 113, and the first and second extensions 121 and 123 can seal the first holes 117. Alternatively, the shapes and sizes of the first extension 121 and the second extension 123 may or may not be consistent with the shapes and sizes of the first side 111 and the third side 113; the first extension 121 and the second extension 123 may have a regular shape or a special shape. The shape and size of the first extension 121 and the second extension 123 are not limited in this application as long as they can seal all the first holes 117.

It should be understood here that if only one of the first side 111 and the third side 113 is provided with the first hole 117, the first extension 121 and the second extension 123 may be provided with only one. For example, only the first side 111 is provided with the first hole 117, and the first main board 12 may be provided with only the first extension portion 121, and the first extension portion 121 is attached to the first side 111 and seals the first hole 117. The first main board 12 of the application is provided with the first extending part 121 and the second extending part 123, so that the effect of plugging the first hole 117 can be realized, the number of parts forming the first collecting pipe 1 is less, and the structure of the collecting pipe is simpler.

In other embodiments, the positions of the first extending portion 121 and the second extending portion 123 corresponding to the first holes 117 may be provided with protrusions, the number of the protrusions is the same as that of the first holes 117, the cross-sectional shape of the protrusions is approximately the same as that of the first holes 117, the cross-sectional size of the protrusions is slightly larger than that of the first holes 117, the protrusions are at least partially inserted into the first holes 117, the lower end surfaces of the protrusions are lower than the first side 111, for example, when the first holes 117 are circular, the protrusions are also circular, the radius of the protrusions is slightly larger than that of the first holes 117, and the lower end surfaces of the protrusions extend into the first channels 116, so as to ensure the reliability of sealing the first channels 116. Of course, the first extension 121 and the second extension 123 may be planar, and the first hole 117 may be blocked by the surface-to-surface bonding of the first extension 121 to the first side 111 and the surface-to-surface bonding of the second extension 123 to the third side 113.

It should be understood herein that the structures of the first extension portion 121 and the second extension portion 123 may be the same or different, for example, the first extension portion 121 is provided with a protrusion, and the second extension portion 123 is not provided with a protrusion, so long as the first extension portion 121 and the second extension portion 123 are not affected to seal the first channel 116, which is not limited in this application.

In this embodiment, the first main board 12 is substantially U-shaped, the first main board 11 is disposed inside the U-shape of the first main board 12, that is, the first main board 12 covers at least part of the structure of the first main board 11, and then the first main board 11 and the first main board 12 are fixedly connected by brazing. The first main board 12 is formed by processing a plate with a certain thickness, the plate has a certain length and the same width as the second side 112, the plate is bent to form a first extension portion 121 and a second extension portion 123, the first extension portion 121 and the second extension portion 123 are perpendicular to the main body portion 122, the first extension portion 121, the main body portion 122 and the second extension portion 123 form a U shape, and the first main body 11 is disposed in the U shape.

When the first main board 12 and the first main body 11 are assembled, first, two ends of the first main board 12 are bent for the second time to form a first extension portion 121 and a second extension portion 123, at this time, the first main board 12 is approximately in a U shape, the first main body 11 is placed inside the U shape of the first main board 12, the first extension portion 121 is attached to the first side surface 111, the second extension portion 123 is attached to the third side surface 113, the main body portion 122 is attached to the second side surface 112, the first main body 11 and the first main board 12 are fixed relatively, primary fixation of the first main board 12 and the first main body 11 is achieved, and then secondary fixation of the first main body 11 and the first main board 12 can be achieved through brazing. By the U-shaped structure, the first main body 11 may be partially inlaid in the first main board 12 and then fixed by brazing. The first main board 12 in this embodiment not only can realize the function of sealing the first channel 116, but also can improve the welding area of the first main board 12 and the first main body 11.

In this embodiment, the heat exchanger further includes a housing 3, a heat exchange core 4, the heat exchange core 4 includes a heat exchange tube 41, the heat exchange tube 41 is connected with the first collecting pipe 1 and the second collecting pipe 2, an inner cavity of the heat exchange tube 41 is communicated with an inner cavity of the first collecting pipe 1 and an inner cavity of the second collecting pipe 2, the housing 3 is disposed between the first collecting pipe 1 and the second collecting pipe 2, one end of the housing 3 is fixed in the first collecting pipe 1 in a sealing manner, the other end is fixed in the second collecting pipe 2 in a sealing manner, and the housing 3 surrounds part of the heat exchange core 4.

The first main body 11 further includes a second hole 1121, the second hole 1121 is communicated with the first channel 116, the first main board 12 further includes a third hole 124 corresponding to the second hole 1121, one second hole 1121 is correspondingly connected to one heat exchange tube 41, an end face of one end of the heat exchange tube 41 passes through the third hole 124 of the first collecting pipe 1 and is accommodated in the second hole 1121, and an end face of the other end of the heat exchange tube 41 passes through the third hole 124 of the second collecting pipe 2 and is accommodated in the second hole 1121.

In this embodiment, the second hole 1121 and the third hole 124 are elongated holes, the lengths of the second hole 1121 and the third hole 124 are larger than the width of the shrinkage of the flat tube, and the width of the second hole 1121 is larger than the thickness of the flat tube. The second hole 1121 and the third hole 124 may have a square shape, a kidney shape, or a special shape, and may have no influence on the flow of the medium, and may have no influence on the sealing engagement with the heat exchange tube 41, and the present application is not limited thereto.

Optionally, the third hole 124 is similar in shape and size to the second hole 1121, e.g., the second hole 1121 is kidney-shaped and the third hole 124 is kidney-shaped. Of course, the shape of the second hole 1121 may be different from the shape of the third hole 124, for example, the second hole 1121 may be kidney-shaped, and the third hole 124 may be square or irregular, so long as the heat exchange tube 41 is not affected and accommodated in the second hole 1121 through the third hole 124.

In the present embodiment, the heat exchange core 4 includes a plurality of heat exchange tubes 41, and the plurality of heat exchange tubes 41 are disposed in parallel with each other. A passage through which the first medium flows is formed between the housing 3 and the heat exchange core 4, and a passage through which the second medium flows is formed between the first header 1, the second header 2, and the heat exchange tube 41.

Alternatively, the heat exchange tube 41 may be a flat tube, and optionally, the flat tube is provided with a plurality of channels parallel to each other, and the second medium flows in the channels; the heat exchange tube 41 may be formed by a plurality of circular tubes laid in a row, and the second medium enters the row of circular tubes and flows in the row of circular tubes at the same time.

The side walls in the width direction of the heat exchange tube 41 are bonded to the housing 3, and for example, when the heat exchange tube 41 is a flat tube, the side walls on both sides in the width direction of the flat tube are bonded to the housing 3 by brazing. When the heat exchange tubes 41 are rows of round tubes, the two round tubes located at the outermost side are in line contact with the housing 3, and the line contact positions are brazed.

Optionally, the heat exchange core 4 may further include a plurality of heat exchange members 42, where the heat exchange members 42 are at least partially connected to the heat exchange tubes 41. Specifically, as shown in fig. 3, the heat exchange core 4 includes a plurality of heat exchange members 42 and a plurality of heat exchange tubes 41, and the plurality of heat exchange members 42 and the plurality of heat exchange tubes 41 are alternately arranged one by one.

The heat exchanging members 42 are arranged in groups, and each group of heat exchanging members 42 is arranged above or below the adjacent heat exchanging pipe 41 in a row to strengthen the heat transfer effect of the second medium in the heat exchanging pipe 41. Optionally, the heat exchange member 42 and the heat exchange tube 41 are fixed by brazing.

Optionally, the overall laying area of each set of heat exchange elements 42 is the same or substantially the same as the area of heat exchange tubes 41 to achieve optimal heat exchange. It will be appreciated that the length of the heat exchange member 42 is not greater than the length of the heat exchange tube 41, and that the width of the heat exchange member 42 is not greater than the width of the heat exchange tube 41.

In this embodiment, the heat exchange member 42 may be a fin in a sheet shape, or may be another sheet-like structure capable of achieving heat transfer. The heat exchanging member 42 may be a single-piece structure or a combined structure.

A flow channel is formed between two adjacent heat exchange tubes 41 and/or between the heat exchange tubes 41 and the housing 3, and a first medium can enter the flow channel to exchange heat with a second medium in the heat exchange tubes 41.

Illustratively, the uppermost end and the lowermost end of the heat exchange core 4 are heat exchange pieces 42, a circulation channel is formed between the heat exchange tubes 41 at the uppermost end and the lowermost end and the shell 3, and the heat exchange tubes 41 are arranged between every two adjacent heat exchange pieces 42. It will be understood that the heat exchange tubes 41 may be disposed at the uppermost end and the lowermost end of the heat exchange core 4, and the heat exchange members 42 may be disposed between two adjacent heat exchange tubes 41.

In this embodiment, the whole structure of the heat exchange core 4 may be a cuboid structure or other three-dimensional pattern structures. It will be understood, of course, that the above-mentioned three-dimensional pattern structure may be a regular shape or an irregular shape, and the present application is not limited, and the heat exchange effect is not affected.

As shown in fig. 1, the housing 3 is disposed around at least a portion of the heat exchange core 4, and the housing 3 cooperates with the first header 1 and the second header 2 to surround the heat exchange core 4 to seal the inner cavity of the housing 3. In this embodiment, one end of the housing 3 is sealed and fixed to the first collecting pipe 1, and the other end is sealed and fixed to the second collecting pipe 2, and the three cooperate to form a sealed space, so as to realize the flow of the first medium in the sealed space.

Alternatively, the housing 3 may be an integrally formed structure, or may be a structure assembled from two or more plates, and when it is an assembled structure of two or more plates, two adjacent plates may be fixed by brazing, and finally, the clad heat exchange core 4 may be surrounded. In addition, the two or more plates may be long plates having a length less than or equal to the length of the heat exchange core 4, and a plurality of long plates are disposed around the heat exchange core 4. The two or more plates may be annular plates, i.e. a single annular plate may surround a portion of the heat exchange core 4, and the sum of the widths of the plurality of annular plates is greater than or equal to the length of the heat exchange core 4.

In this embodiment, the housing 3 includes a first housing 31 and a second housing 32, and the first housing 31 and the second housing 32 have substantially the same structure and have substantially L-shaped structures, and when the first housing 31 and the second housing 32 are assembled, the first housing 31 is attached to the outer side of the heat exchange core 4 in a positive L-shaped manner, and the second housing 32 is attached to the outer side of the heat exchange core 4 in an inverted L-shaped manner, so that the first housing 31 and the second housing 32 substantially form a complete rectangular housing 3. The connection of the first housing 31 and the second housing 32 may be fixedly connected by brazing.

In this embodiment, the first housing 31 and the second housing 32 may be aluminum plates, which may be welded to the outside of the heat exchange core 4 by brazing.

In addition, referring to fig. 4, the fifth extension portion 33 is disposed on one side of the first and second cases 31 and 32, the sixth extension portion 34 is disposed on one side of the first and second cases 31 and 32 where the fifth extension portion 33 is not extended, the fifth extension portion 33 of the first case 31 can overlap with the sixth extension portion 34 of the second case 32, and similarly, the fifth extension portion 33 of the second case 32 can overlap with the sixth extension portion 34 of the first case 31, and by soldering the overlapping position of the sixth extension portion 34 and the fifth extension portion 33, it is possible to increase the welding area, facilitate the welding assembly, and also make the strength after the welding of the first and second cases 31 and 32 higher.

In the present embodiment, as shown in fig. 4, the fifth extension 33 is formed by horizontally extending one side of the first housing 31 and the second housing 32. The sixth extension 34 is formed by extending the other side of the first housing 31 and the second housing 32 parallel to the direction of the fifth extension 33 (which may also be formed by bending), then placing the first housing 31 in a positive L-shape, and placing the second housing 32 in an inverted L-shape, so that the first housing 31 and the second housing 32 substantially form a complete rectangular housing 3. The sixth extension 34 is overlapped with the fifth extension 33 at the position where the first casing 31 and the second casing 32 are joined, and the sixth extension 34 is located outside the fifth extension 33 in the view of the casing 3 from inside to outside, that is, the inner wall surface of the sixth extension 34 is bonded to the outer wall surface of the fifth extension 33. The structure can reduce the assembly difficulty of the first shell 31 and the second shell 32, increase the welding area and improve the strength of the first shell 31 and the second shell 32 after welding.

It will be appreciated that in another embodiment, the positions and shapes of the sixth extending portions 34 of the first housing 31 and the second housing 32 are unchanged, the fifth extending portion 33 extends outwards perpendicular to the side surface where the sixth extending portion 34 is not provided, and then extends horizontally for a certain distance, so that the fifth extending portion 33 on the first housing 31 overlaps the outer side (from inside to outside of the housing 3) of the sixth extending portion 34 on the second housing 32, and then the outer wall surface of the sixth extending portion 34 is attached to the inner wall surface of the fifth extending portion 33.

In other embodiments, the first housing 31 and the second housing 32 are not provided with the sixth extension portion 34 any more, but when the first housing 31 and the second housing 32 are in the assembled state, taking the first housing 31 as an example, the fifth extension portion 33 of the first housing 31 extends horizontally to a side where the second housing 32 is not provided with the sixth extension portion 34 any more, and then extends vertically to the inside of the whole housing 3, that is, the fifth extension portion 33 is in a substantially L-shaped structure, which can be snapped to fit on the second housing 32, and no more is provided outside of the side where the sixth extension portion 34 is provided.

In this embodiment, further, the housing 3 includes a body portion (not shown in the drawing) and flanges 35, the flanges 35 are circumferentially disposed at two side ends of the housing 3, the flanges 35 are formed by extending the end of the housing 3 along a direction away from the heat exchange core 4, and the flanges 35 connect the first header 1 and the body portion 122 or the second header 2 and the body portion.

Specifically, the flanges 35 extend circumferentially on both sides of the first shell 31 and the second shell 32, and the flanges 35 are used for being attached to the second side surface 112 of the first collecting pipe 1 and the second side surface 112 of the second collecting pipe 2, and then the attaching positions can be soldered and fixed, so that the first shell 31 and the second shell 32 are fixed with the first collecting pipe 1 and the second collecting pipe 2. Alternatively, the flange 35 may not be provided at the position where the fifth extension 33 and the sixth extension 34 are provided, so that brazing when the two overlap.

It will be understood, of course, that the first housing 31 and the second housing 32 may also have a generally C-shaped configuration, and may be assembled in the same manner as the first housing 31 and the second housing 32 having the L-shaped configuration. The structures of the first casing 31 and the second casing 32 may be different shapes, and it is only required to meet that the two can be spliced into one casing 3.

The housing 3 is provided with at least one set of oppositely arranged inlet openings (not shown) and outlet openings (not shown), the number of inlet openings and outlet openings being the same. It may be that an inlet is provided in the first housing 31, and an outlet is provided in the second housing 32 correspondingly; the first housing 31 may be provided with an outlet, and the second housing 32 may be provided with an inlet; the first housing 31 may be provided with both an inlet and an outlet; the second housing 32 may be provided with an inlet and an outlet, which is not limited in this application, and may not affect the smoothness of the flow of the first medium and the heat exchange effect.

Each group of inlets and outlets are arranged corresponding to part of the circulating channels, and media circulating in the channels formed by the inlets and outlets of different groups are mutually independent. As shown in fig. 4, in this embodiment, the housing 3 is provided with a set of oppositely disposed inlets and outlets, the inlets are disposed in the first housing 31, the outlets are disposed in the second housing 32, one inlet communicates with all the flow channels, one outlet communicates with all the flow channels, and the first medium flows into the housing 3 from the inlets, is distributed into the flow channels to exchange heat with the heat exchange tubes 41, and then flows out from the outlets. In other embodiments, the housing 3 is provided with at least two sets of oppositely disposed inlets and outlets, and at least two mediums may be the same or different, and it should be noted that the number of inlets and/or outlets of the first housing 31 is the same as the number of outlets and/or inlets of the second housing 32. I.e. the first housing 31 and the second housing 32 together form at least two sets of oppositely arranged inlet and outlet openings.

Referring to fig. 6, the inlet includes at least one fifth through hole 37 and the outlet includes at least one sixth through hole 38. Wherein the number of the fifth through holes 37 of the same group is the same as the number of the sixth through holes 38 of the group, and each of the flow channels communicates with one of the fifth through holes 37 and one of the sixth through holes 38. Further, a passage through which the first medium flows is formed by the fifth through hole 37, the flow channel, and the sixth through hole 38. In this embodiment, the fifth through hole 37 and the sixth through hole 38 may be rectangular holes, may be circular holes or oval holes, or may be holes of other shapes, so long as the circulation of the first medium is satisfied, and the first medium is not allowed to flow.

It should be understood here that the inlet is used to guide the first medium into the housing, the outlet is used to guide the first medium out of the housing, and when there is only one fifth through hole 37, this fifth through hole 37 can be understood as an inlet, and when there are two or more fifth through holes 37, the two or more fifth through holes 37 together form the inlet; similarly, when there is only one sixth through hole 38, the sixth through hole 38 may be understood as an outlet, and when there are two or more sixth through holes 38, the two or more sixth through holes 38 together constitute the outlet.

Illustratively, the size and shape of the fifth through holes 37 of the same set of inlets may be the same or different as desired, as may the size and shape of the sixth through holes 38 of the same set of outlets. Of course, the size and shape of the fifth through holes 37 of the different sets of inlets may be the same or different as desired, and the size and shape of the sixth through holes 38 of the different sets of outlets may be the same or different as desired.

Further, the above-mentioned different sets of inlets and outlets and corresponding flow channels may form different passages, for example, one set of inlets and outlets, each of the fifth through holes 37 and the corresponding flow channel is communicated with each other by the sixth through hole 38, so as to form a flow path for the first medium to flow through, and the same set of inlets and outlets and corresponding flow channels may form a plurality of flow paths, and the plurality of flow paths form a corresponding one of the inlets. Accordingly, other sets of inlets and outlets and corresponding flow channels also form additional passageways. In this embodiment, the different passages formed by the different sets of inlets and outlets may be configured to allow for different temperatures and/or types of first medium to circulate. Of course, different passages may also be provided for the circulation of the first medium of the same temperature and/or type. However, the same set of inlets and outlets form a passageway through which only the first medium of the same temperature and/or type can flow.

Further, the width of the fifth through hole 37 and the sixth through hole 38 in the vertical direction of the first housing 31 and/or the second housing 32 is not greater than the width of a single flow channel in the vertical direction, so that it is ensured that each fifth through hole 37 is in communication with only one flow channel. I.e. the first medium flowing in through each fifth through hole 37 can flow all into a single flow channel in communication therewith and finally out through the corresponding sixth through hole 38 without channeling into the other flow channels.

In addition, in the present embodiment, the fifth through holes 37 of the inlets of the different groups are staggered along the height direction of the housing 3, and the sixth through holes 38 of the outlets of the different groups are staggered along the height direction of the housing 3, that is, the fifth through holes 37 and/or the sixth through holes 38 of the different groups are staggered on the first housing 31.

According to another embodiment of the housing 3 of the heat exchanger of the present application, the difference between the present embodiment and the above embodiment is that the number and positions of the inlets and outlets on the housing 3 of the present embodiment are different, specifically, as shown in fig. 6-7, in the present embodiment, the first housing 31 is provided with two inlets, which include a plurality of fifth through holes 37, and the corresponding second housing 32 is provided with two outlets, which include a plurality of sixth through holes 38.

In this embodiment, since the first housing 31 has two different inlet groups, the fifth through holes 37 of one inlet group and the fifth through holes 37 of the other inlet group are staggered. Through the arrangement of the structure, the communication channels of any two groups of inlets can be ensured to be different, wherein a passage for the first medium to circulate is formed among one group of fifth through holes 37, sixth through holes 38 and a plurality of corresponding communication channels, the passage can regulate the temperature of a certain position, and another passage for the first medium to circulate is formed among the other group of fifth through holes 37, sixth through holes 38 and a plurality of corresponding communication channels, and the passage can regulate the temperature of another position.

As shown in fig. 7, the first housing 31 is provided with two groups of inlets, and the fifth through holes 37 of the left inlet and the fifth through holes 37 of the right inlet are staggered. The lower edge of the uppermost fifth through hole 37 in the left inlet is slightly higher than the upper edge of the right fifth through hole 37 or is positioned on the same horizontal line, and the fifth through holes 37 of the left inlet and the fifth through holes 37 of the right inlet are distributed in a staggered manner because the plurality of fifth through holes 37 of each group of inlets are uniformly distributed, so that the communication channels of the two groups of inlets are ensured to be different.

As shown in fig. 8, the first housing 31 is provided with three groups of inlets, and all the fifth through holes 37 of the three groups of inlets are distributed in a staggered manner. The lower edges of the uppermost fifth through holes 37 in the left inlet are slightly higher than the upper edges of the uppermost fifth through holes 37 in the middle inlet or are on the same horizontal line, and then the lower edges of the uppermost fifth through holes 37 in the middle inlet are slightly higher than the upper edges of the uppermost fifth through holes 37 in the right inlet or are on the same horizontal line, and as the plurality of fifth through holes 37 of each group of inlets are uniformly distributed, the staggered distribution among all the fifth through holes 37 of the three groups of inlets can be realized, and the communication channels of the three groups of inlets can be ensured to be different.

Optionally, the fifth through holes 37 of the same group are disposed at equal intervals, and the sixth through holes 38 of the same group are disposed at equal intervals. Because the fifth through hole 37 and the sixth through hole 38 are communicated with the flow channel, and the flow channel is formed between the heat exchange tubes 41, when the fifth through hole 37 is arranged at equal intervals, the sixth through hole 38 can ensure that the heat exchange tubes 41 are also arranged at equal intervals, so that the structural strength of the heat exchange core 4 is enough and has better pressure-bearing performance. In addition, with the above configuration, the second medium in each heat exchange tube 41 can be ensured to exchange heat sufficiently with the first medium in the flow channel, and the heat exchange effect is good.

Referring to fig. 4 to 6, the above-mentioned housing 3 of the present embodiment further includes a distribution box 5, the distribution box 5 is fixed to the housing 3, and the distribution box 5 is provided with a receiving chamber 51, the receiving chamber 51 can cover at least one inlet or outlet, and a first medium can enter the receiving chamber 51 and enter the inlet from the receiving chamber 51; or from the outlet into the receiving chamber 51 and finally out of the receiving chamber 51.

Taking the example that the first housing 31 has two sets of inlets and the second housing 32 has two sets of outlets, two distribution boxes 5 are provided on the first housing 31 to cover the inlets (specifically, all fifth through holes 37 of the inlets), respectively, and the two distribution boxes 5 on the second housing 32 to cover the outlets (specifically, all sixth through holes 38 of the outlets), respectively. It is to be understood here that the distribution box 5 covers the inlet opening means that the upper end of the distribution box 5 is higher than the upper end of the inlet opening in the length direction of the distribution box 5, the lower end of the distribution box 5 is lower than the lower end of the inlet opening, the left end of the distribution box 5 exceeds the left end of the inlet opening in the width direction of the distribution box 5, and the right end of the distribution box 5 exceeds the right end of the inlet opening. Similarly, the distribution box 5 covers the outlet, that is, the upper end of the distribution box 5 is higher than the upper end of the outlet along the length direction of the distribution box 5, the lower end of the distribution box 5 is lower than the lower end of the outlet, the left end of the distribution box 5 exceeds the left end of the outlet along the width direction of the distribution box 5, and the right end of the distribution box 5 exceeds the right end of the outlet. By the above arrangement, it is ensured that the first medium is entirely introduced from the distribution box 5 into the fifth through hole 37 of the inlet, or entirely introduced from the sixth through hole 38 of the outlet into the distribution box 5.

Alternatively, a plurality of accommodating chambers 51 may be provided in the distribution box 5, each accommodating chamber 51 being capable of communicating with one fifth through hole 37 of one inlet or one sixth through hole 38 of one outlet, i.e., the number of accommodating chambers 51 is the same as the number of fifth through holes 37 of each group of outlets, the first medium being capable of entering the plurality of accommodating chambers 51 and the accommodating chambers 51 into the fifth through holes 37, or the first medium entering the plurality of accommodating chambers 51 only by the sixth through holes 38 and finally flowing out of the accommodating chambers 51.

It will be understood, of course, that when the housing 3 has more than 36 sets of inlets and outlets, each of the inlets and outlets may be provided with one distribution box 5, or multiple inlets may be simultaneously covered by one distribution box 5, and multiple outlets may be simultaneously covered by one distribution box 5, where the first medium in the accommodating chamber 51 of the distribution box 5 enters the multiple inlets, respectively, and the first medium flowing out of the multiple outlets converges into the accommodating chamber 51 of the distribution box 5 and flows out of the accommodating chamber 51.

In this embodiment, referring to fig. 5, the accommodating cavity 51 of the dispensing box 5 may be stamped from an aluminum plate, and the accommodating cavity 51 is connected to a pipe orifice 52, where the pipe orifice 52 is used for connecting with a pipeline to achieve inflow or outflow of the first medium.

Optionally, a first positioning portion 53 is provided at an edge of one side of the distribution box 5, and a second positioning portion 36 (shown in fig. 4) is provided at a corresponding position of the housing 3 where the distribution box 5 is mounted, where the first positioning portion 53 can be matched with the second positioning portion 36 to realize positioning when the distribution box 5 is mounted, so that a problem of tilting when the distribution box 5 is mounted is reduced, and the mounting of the distribution box 5 is simpler. In this embodiment, the first positioning portion 53 may be a semicircular opening or a circular hole, and the second positioning portion 36 may be a positioning post, which may be engaged with the semicircular opening or the circular hole. The first positioning portion 53 and the second positioning portion 36 may be grooves provided in the same direction, and in this case, the first positioning portion 53 is fitted in the second positioning portion 36, or the second positioning portion 36 is fitted in the first positioning portion 53, so that positioning can be achieved when the dispensing cartridge 5 is mounted.

When the heat exchanger of this embodiment is used, the second medium will first enter the first collecting pipe 1, then enter the plurality of heat exchange pipes 41 through the first collecting pipe 1, flow into the second collecting pipe 2 from the heat exchange pipes 41, then flow out through the second collecting pipe 2, at least one path of the first medium (which may be the same in temperature and type or different in temperature and type) flows into the accommodating cavity 51 of the distribution box 5 from the pipe orifice 5242 of the distribution box 5, then enters the circulation channel through the inlet, exchanges heat with the second medium in the heat exchange pipes 41 in the circulation channel, (meanwhile, improves the heat exchange effect between the first medium and the second medium through the heat exchange plates), then enters the accommodating cavity 51 of the distribution box 5 through the outlet, and finally flows to the position where temperature adjustment is required through the pipe orifice 5242 of the distribution box 5, so as to perform temperature adjustment.

According to yet another embodiment of the housing 3 of the heat exchanger of the present application, the difference between the embodiment and the above embodiment is that the structure and the positions of the inlet and the outlet on the housing 3 of the present embodiment are different, and in particular, referring to fig. 9 to 10, the housing 3 is also provided with at least two inlets and at least two outlets, which may be that at least two inlets are provided on the first housing 31 and at least two outlets are provided on the second housing 32. At least two outlets may be provided in the first housing 31, and at least two inlets may be provided in the second housing 32. It is also possible to provide at least one inlet and at least one outlet on the first housing 31 and the second housing 32, respectively.

In this embodiment, the first housing 31 is provided with two inlets, and the second housing 32 is provided with two outlets, for example, as shown in fig. 10, the two outlets are distributed up and down in the height direction of the second housing 32, and each outlet has only one sixth through hole 38, and the sixth through hole 38 is at least communicated with one circulation channel. The two outlets are vertically distributed in the second housing 32, and the two outlets may be coaxially disposed (i.e., the distances between the two outlets and the same end of the second housing 32 are the same), or may be non-coaxially disposed (i.e., the distances between the two outlets and the same end of the second housing 32 are different, as shown in fig. 10, and are distributed from side to side). Each of the outlets has only one sixth through hole 38, and the sixth through hole 38 communicates with at least one flow channel.

In the present application, it should be understood that, when each inlet has only one fifth through hole 37, the inlet and the fifth through hole 37 are shown as the same structure in the drawings; when each outlet has only one sixth through hole 38, the outlets and the sixth through hole 38 in the drawing are shown as the same structure; when each inlet has at least two fifth through holes 37, the at least two fifth through holes 37 together constitute the inlet, and the outlet principle is the same.

In this embodiment, referring to fig. 9, when the fifth through hole 37 of the same group of inlets is communicated with the sixth through hole 38 of the outlet, the flow channels of the heat exchange core 4 may be divided into a plurality of areas, each area includes a plurality of adjacent flow channels, and the flow channels of different areas are not overlapped, wherein the fifth through hole 37 of one group of inlets is communicated with the flow channels of one area, and the fifth through hole 37 of the other group of inlets is communicated with the sixth through hole 38 of the outlet. By the arrangement, the multiple groups of inlets, outlets and passages formed by the corresponding circulating channels can be mutually independent.

In this embodiment, further, in at least two groups of inlets and outlets, any two groups of inlets are staggered, so as to avoid overlapping, and the inlets of different groups are in contact with the corresponding circulating first medium, so that multiple heat exchange cannot be realized.

According to another embodiment of the present application, the present embodiment is different from the above-described embodiment in that the first main board 12 of the present embodiment is different in structure.

Specifically, as shown in fig. 11-13, the first main board 12 further includes a third extension portion 125 and a fourth extension portion 126, where the third extension portion 125 and the fourth extension portion 126 are attached to the sixth side, the third extension portion 125 is formed by extending an end of the first extension portion 121 away from the main body portion 122 along a direction parallel to the second side 112, the first main body 11 is located between the third extension portion 125 and the main body portion 122, and the fourth extension portion 126 is formed by extending an end of the second extension portion 123 away from the main body portion 122 along a direction parallel to the second side 112, and the first main body 11 is located between the fourth extension portion 126 and the main body portion 122.

When the first main board 12 and the first main body 11 are assembled, first, two ends of the first main board 12 are bent for the first time to form a first extension part 121 and a second extension part 123, at this time, the first main board 12 is approximately in a U shape, the first main body 11 is placed in the U shape of the first main board 12, the first main body 11 is relatively fixed with the first main board 12, and second bending operation is performed on the first extension part 121 and the second extension part 123 to form a third extension part 125 and a fourth extension part 126, respectively, because the first main body 11 is relatively fixed with the first main board 12 before the second bending, the third extension part 125 and the fourth extension part 126 are parallel to the main body part 122, the first main body 11 is wrapped in the first main board 12 formed after the second bending, so that the primary fixing of the first main board 12 and the first main body 11 is realized, and then the secondary fixing of the first main body 11 and the first main board 12 can be realized through brazing. Through the two bending processes, the first main body 11 can be inlaid in the first main board 12 and then fixed through brazing. The two bending operations of the first main board 12 in this embodiment not only can realize the function of sealing the first channel 116, but also can further improve the fixing strength of the first main board 12 and the first main body 11.

As shown in fig. 11 and 12, the third extension portion 125 and the fourth extension portion 126 may be in a tooth shape, and a plurality of teeth may be uniformly distributed at equal intervals or unevenly distributed in a scattered manner, so as to achieve preliminary fixation of the first main plate 12 and the first main body 11; as shown in fig. 13, the third extension portion 125 and the fourth extension portion 126 may be in a sheet shape, the strength of the third extension portion 125 and the fourth extension portion 126 is higher, and the welding area between the first main body 11 and the first main board 12 is increased, so as to improve the fixing strength; the third extension portion 125 and the fourth extension portion 126 may also be extended to abut against, engage with or overlap with each other, further increasing the welding area and improving the fixing strength.

It is understood that the third extension portion 125 and the fourth extension portion 126 may have the same structure or different structures, for example, the third extension portion 125 is toothed, the fourth extension portion 126 is sheet-shaped, or the third extension portion 125 and the fourth extension portion 126 are both toothed, which does not affect the fixing effect. Of course, the first extension portion 121 and the second extension portion 123 may have the same structure or different structures.

Other structures of this embodiment are the same as those of the above embodiment, and will not be described here again.

According to still another embodiment of the present application, the present embodiment is different from the above-described embodiments in that the fixing structure of the first main board 12 and the first main body 11 of the present embodiment is different.

Specifically, as shown in fig. 14, 15 and 17, the first main body 11 further includes at least one first through hole 118 and at least one second through hole 119, the first main board 12 includes at least one third through hole 127 and at least one fourth through hole 128, the first through holes 118 and the third through holes 127 are the same in number and in one-to-one correspondence, and the second through holes 119 and the fourth through holes 128 are the same in number and in one-to-one correspondence. The first through hole 118 and the second through hole 119 each extend from the second side surface 112 toward the sixth side surface direction and penetrate the first main body 11, and the third through hole 127 and the fourth through hole 128 penetrate the first main board 12. The first through hole 118 and the third through hole 127 are disposed near the fourth side 114, and the second through hole 119 and the fourth through hole 128 are disposed near the fifth side 115.

The first collecting pipe 1 further comprises fastening members 13, in this embodiment, one fastening member 13 passes through a first through hole 118 and a third through hole 127 to fixedly connect the first main body 11 with the first main board 12, and one fastening member 13 passes through a second through hole 119 and a fourth through hole 128 to fixedly connect the first main body 11 with the first main board 12, wherein the number of fastening members 13 is equal to the sum of the number of the first through holes 118 and the second through holes 119. It will be appreciated that the number of fasteners may be less than the sum of the numbers of the first through holes 118 and the second through holes 119, i.e., one fastener may pass through two or more sets of the first through holes 118 and the third through holes 127 in one-to-one correspondence, or one fastener may pass through two or more sets of the second through holes 119 and the fourth through holes 128 in one-to-one correspondence.

The fastener 13 comprises a first wall part, a second wall part and a connecting part connected with the first wall part and the second wall part, wherein the connecting part is perpendicular to the first wall part and the second wall part, alternatively, the fastener 13 can be a rivet, the first wall part and the second wall part are the heads of two ends of the rivet, and the connecting part is a middle rod; alternatively, the fastener 13 may be a combination of a screw and a nut, the first wall portion being a head portion of the screw, the connecting portion being a shaft portion of the screw, and the second wall portion being the nut.

The first main board 12 and the first main board 11 are fixedly connected through the fastener 13, so that the strength of the first main board 11 and the first main board 11 can be further improved.

According to yet another embodiment of the heat exchanger of the present application, the present embodiment differs from the above-described embodiments in that the sealing manner of the first main plate 12 and the first hole 117 of the present embodiment is different.

Specifically, as shown in fig. 16 and 17, the first main board 12 includes only the main body 122, and the main body 122 is attached to the second side 112 and fixedly connected to the first main body 11. Alternatively, as shown in fig. 17, the first main board 12 and the first main body 11 may be further fastened by a fastener 13.

In this embodiment, the first hole 117 is plugged by a first plug (not shown in the figure) to seal the first channel 116, where the number of the first plugs is smaller than or equal to the number of the first holes 117, and the first plugs have a certain thickness, so that the strength of the first plugs is ensured. The cross-sectional shape of the first plug is substantially the same as the contour shape of the first aperture 117, and the cross-sectional size of the first plug is slightly larger than the size of the first aperture 117. Alternatively, when the first hole 117 is circular, the first cap is cylindrical, and the radius of the cross section of the first cap is slightly larger than the radius of the first hole 117. Optionally, at least a portion of the first cover is inserted into the first hole 117, and a lower end surface of the first cover is lower than the first side 111 of the first body 11 when the first hole 117 is located at the first side 111. It should be understood that the upper end surface of the first plug and the first side surface 111 of the first main body 11 may be located on the same horizontal plane, and the upper end surface of the first plug may also be higher than the first side surface 111 of the first main body 11, so long as the lower end surface of the first plug is ensured to be lower than the first side surface 111 of the first main body 11, so as to complete the sealing of the first channel 116.

The foregoing description is only a preferred embodiment of the present application, and is not intended to limit the invention to the particular embodiment disclosed, but is not intended to limit the invention to the particular embodiment disclosed, as the equivalent of some alterations or modifications can be made without departing from the scope of the present application.

Claims

1. A header, comprising: a first main body and a first main board; the first main board is coated on at least part of the first main body, and is fixedly connected to the first main body; the first main body comprises a first side face, a second side face and a first channel, the second side face is parallel to the first channel, the first side face comprises a first hole, and the first hole is formed through the first side face for the first channel; the first main board comprises a main body part and an extension part, the extension part is attached to the first side surface, the main body part is attached to the second side surface, and the extension part seals the first hole;

The first main body further comprises a third side surface, the extension part comprises a first extension part and a second extension part, the first extension part is formed by extending one end, close to the first side surface, of the main body part along the direction parallel to the first side surface, the first extension part is fixedly attached to the first side surface, the second extension part is formed by extending one end, close to the third side surface, of the main body part along the direction parallel to the third side surface, the second extension part is fixedly attached to the third side surface, and the main body part is positioned between the first extension part and the second extension part;

the first main board is approximately U-shaped, and the first main body is arranged in the U-shaped of the first main board.

2. A header according to claim 1 wherein said first and second extensions are spaced on opposite sides of said body, said first and third sides being disposed parallel to each other, said first channel being located between said first and third sides, said first and third sides being perpendicular to said second side.

3. A manifold as set forth in claim 2 wherein said first passage defines said first bore through a third side, said first extension sealing said first bore of said first side, said second extension sealing said first bore of said third side, said first extension and said second extension being parallel to one another.

4. A header according to claim 1 wherein said first body further comprises at least one first through hole and at least one second through hole, said first main plate comprises at least one third through hole and at least one fourth through hole, said first through holes are the same number and one to one correspondence as said third through holes, said second through holes are the same number and one to one correspondence as said fourth through holes, said header further comprises fasteners, at least one of said fasteners fixedly connecting said first body to said first main plate through said first through holes and said third through holes, and at least one of said fasteners fixedly connecting said first body to said first main plate through said second through holes and said fourth through holes, said fasteners being the same number as the sum of said first through holes and said second through holes.

5. A manifold as set forth in claim 4 wherein said first body further comprises fourth and fifth sides parallel to each other, said fourth and fifth sides being both perpendicular to said first and second sides, said first channel being located between said fourth and fifth sides; the first through hole and the second through hole penetrate through the first main body, the first through hole and the second through hole are formed in the second side face, the third through hole and the fourth through hole penetrate through the first main board, the first through hole and the third through hole are close to the fourth side face, and the second through hole and the fourth through hole are close to the fifth side face.

6. A header according to claim 2 wherein said first body further includes a sixth side parallel to said second side, said first main plate further includes third and fourth extensions, said third and fourth extensions each being attached to said sixth side, said third extension being formed by an extension of an end of said first extension away from said body in a direction parallel to said second side, said first body being located between said third extension and said body, said fourth extension being formed by an extension of an end of said second extension away from said body in a direction parallel to said second side, said first body being located between said fourth extension and said body.

7. A manifold as set forth in claim 1 wherein said extension has a projection at a location corresponding to said first bore, said projection being at least partially inserted into said first bore and received in said first passage, said projection sealing said first passage.

8. The utility model provides a heat exchanger, its characterized in that, the heat exchanger includes first pressure manifold, second pressure manifold, heat exchange core, casing, first pressure manifold and second pressure manifold adopt the pressure manifold of any one of claims 1-6, the heat exchange core includes the heat exchange tube, the heat exchange tube connects first pressure manifold with the second pressure manifold, the inner chamber intercommunication of heat exchange tube the inner chamber of first pressure manifold with the inner chamber of second pressure manifold, the casing is located between first pressure manifold and the second pressure manifold, the one end seal of casing is fixed in first pressure manifold, the other end seal is fixed in the second pressure manifold, the casing surrounds some the heat exchange core.

9. A heat exchanger as claimed in claim 8, wherein said first body further comprises a second hole which communicates with said first passage, said first main plate further comprises a third hole provided in correspondence with said second hole, an end face of one end of said heat exchange tube passes through said third hole of said first header and is accommodated in said second hole, and an end face of the other end of said heat exchange tube passes through said third hole of said second header and is accommodated in said second hole.

10. A heat exchanger according to any one of claims 8 to 9, wherein the first main plate is provided with a recess, and the first body is accommodated in the recess.