Heat exchange core and heat exchanger

Abstract

The present application relates to heat exchanger technical field, specifically to a kind of heat exchange core and heat exchanger.The heat exchange core includes: first sheet structure, first channel unit and second channel unit are provided along first direction;The first channel unit and the second channel unit are completely separated by wall;Second sheet structure, third channel unit and fourth channel unit are provided along first direction;The third channel unit and the fourth channel unit are connected by rib;The heat exchange core provided by the application, by at least one of first sheet structure and second sheet structure is stacked to form heat exchange core, not only avoid the welding seam between the two sides channel along first direction and the contact thermal resistance generated, but also in the process of diffusion welding to form heat exchange core, it is favorable to avoid welding deformation and misplacement, thereby reduce the deviation between the fluid channel of entity sheet and the channel structure of theoretical design.

Description

TECHNICAL FIELD

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

[0002] The printed circuit board type heat exchanger is generally composed of a side plate, a cold side plate, a hot side plate, a joint and the like. The cold side plate and the hot side plate are distributed with fluid channels, and generally the bottom surfaces of the cold (hot) side plate and the hot (cold) side plate form one kind of channel, and the bottom surfaces of the hot (cold) side plate and the cold (hot) side plate form another kind of channel. The side plate, the cold side plate and the hot side plate are stacked in a certain order to form an integrated body through vacuum diffusion welding, thereby forming a heat exchange core, and then the heat exchange core is welded with the joint to form a heat exchanger.

[0003] As shown in Figure 1 , the heat exchange sheet 100 of the existing cold side plate and / or hot side plate is generally formed by single-sided etching processing, and only one kind of fluid channel is provided on the single sheet. On the one hand, in the process of diffusion welding to form the heat exchange core, due to welding deformation and misplacement, the deviation of the fluid channel of the manufactured physical sheet from the theoretically designed channel structure is increased; on the other hand, as shown in Figure 2 , when two single-sided etched heat exchange sheets 100 are welded together, there will be a weld seam, and there will be a certain contact thermal resistance at the weld seam, which affects the heat exchange efficiency. Therefore, the design of the product has certain limitations because only one side of the single sheet has a fluid channel. SUMMARY

[0004] Therefore, the technical problem to be solved by the present application is to overcome the defect in the prior art that in the process of diffusion welding to form the heat exchange core, due to welding deformation and misplacement, the deviation of the fluid channel of the manufactured physical sheet from the theoretically designed channel structure is increased, so as to provide a heat exchange core which can avoid welding deformation and misplacement in the process of diffusion welding to form the heat exchange core, so as to reduce the deviation of the fluid channel of the physical sheet from the theoretically designed channel structure.

[0005] To solve the above technical problems, the heat exchange core provided by the present application comprises:

[0006] A first sheet structure is provided with a first channel unit and a second channel unit along a first direction; the first channel unit and the second channel unit are completely separated by a plate wall; the first channel unit and the second channel unit are not communicated with each other;

[0007] A second sheet structure is provided with a third channel unit and a fourth channel unit along the first direction; the third channel unit and the fourth channel unit are connected by a rib; the third channel unit and the fourth channel unit are at least partially communicated with each other;

[0008] At least one of the first plate structure and the second plate structure is suitable for being stacked along a first direction to form a heat exchange core.

[0009] Optionally, the first channel unit, the second channel unit and the plate wall are integrally formed.

[0010] Optionally, the first plate structure is formed by double-sided half-etching to form the first channel unit and the second channel unit; the first channel unit comprises a plurality of groups of first protrusions, and a first flow channel is formed between each adjacent two groups of the first protrusions; the second channel unit comprises a plurality of groups of second protrusions, and a second flow channel is formed between each adjacent two groups of the second protrusions; and the first flow channel and the second flow channel are not in communication with each other.

[0011] Optionally, the third channel unit, the fourth channel unit and the rib are integrally formed.

[0012] Optionally, the second plate structure is formed by double-sided half-etching and then hollowing to form the third channel unit and the fourth channel unit; the third channel unit comprises a plurality of groups of third protrusions, and a third flow channel is formed between each adjacent two groups of the third protrusions; the fourth channel unit comprises a plurality of groups of fourth protrusions, and a fourth flow channel is formed between each adjacent two groups of the fourth protrusions; and the third flow channel and the fourth flow channel are at least partially in communication with each other.

[0013] Optionally, the heat exchange core further comprises a partition plate, and the partition plate is suitable for being arranged between any adjacent two groups of the second plate structure along the first direction.

[0014] Optionally, the first channel unit and the second channel unit can flow with the same medium or different mediums; and the third channel unit and the fourth channel unit can only flow with the same medium.

[0015] Optionally, the channel structure of the first plate structure and / or the second plate structure comprises, but is not limited to, an S-Fin type, a straight line type, a Zigzag type, a cylindrical type, a diamond type or a water drop type.

[0016] Optionally, the channel cross section of the first plate structure and / or the second plate structure comprises, but is not limited to, a rectangular shape, a circular shape, a semicircular shape or an elliptical shape.

[0017] The application further provides a heat exchanger, comprising:

[0018] The heat exchange core as described above;

[0019] The heat exchange core is formed by stacking at least one of the first plate structure and the second plate structure along a first direction;

[0020] Side plates arranged at at least one side of the heat exchange core along the first direction, and adapted to be connected with the first plate structure and / or the second plate structure.

[0021] The technical scheme of the present application has the following advantages:

[0022] 1. The heat exchange core provided by the present application comprises: a first plate structure provided with a first channel unit and a second channel unit along a first direction; the first channel unit and the second channel unit are completely separated by a plate wall; a second plate structure provided with a third channel unit and a fourth channel unit along the first direction; the third channel unit and the fourth channel unit are connected by a rib; by stacking at least one of the first plate structure and the second plate structure to form the heat exchange core, compared with the prior art of single-sided etching heat exchange plate, not only the welding seam between the two sides of the first direction and the contact thermal resistance generated thereby are avoided, and the heat exchange efficiency is improved, but also the welding deformation and misplacement are avoided in the process of diffusion welding of the first plate structure and / or the second plate structure to form the heat exchange core, so that the deviation between the fluid channel of the physical plate and the theoretically designed channel structure is reduced.

[0023] 2. The heat exchange core provided by the present application, the first plate structure is an integral structure, and the first plate structure comprises a first channel unit, a second channel unit and a plate wall; the first channel unit and the second channel unit are arranged on both sides of the plate wall along the first direction; by arranging the first plate structure, a plurality of groups of the first plate structure are stacked along the first direction to form the heat exchange core, compared with the prior art of single-sided etching heat exchange plate, not only the welding seam between the first channel unit and the second channel unit and the contact thermal resistance generated thereby are avoided, and the heat exchange efficiency is improved, but also the welding deformation and misplacement are avoided in the process of diffusion welding of the first plate structure to form the heat exchange core, so that the deviation between the fluid channel of the physical plate and the theoretically designed channel structure is reduced.

[0024] 3. The heat exchange core provided by the present application, the first plate structure is formed by double-sided half-etching along the first direction to form the first channel unit and the second channel unit; the first channel unit comprises a plurality of groups of first protrusions, each adjacent two groups of the first protrusions are arranged at intervals, so that a first flow channel is formed between each adjacent two groups of the first protrusions; the second channel unit comprises a plurality of groups of second protrusions, each adjacent two groups of the second protrusions are arranged at intervals, so that a second flow channel is formed between each adjacent two groups of the second protrusions; the first flow channel and the second flow channel are completely separated by the plate wall and are not connected with each other, so as to meet the demand of heat exchange of different kinds of media.

[0025] 4. The heat exchange core provided by the present application, the second plate structure is an integral forming structure, the second plate structure comprises a third channel unit, a fourth channel unit and a rib; the third channel unit and the fourth channel unit are respectively arranged on both sides of the rib along a first direction; by arranging the second plate structure, a plurality of groups of the second plate structure are stacked along the first direction to form the heat exchange core; compared with the single-side etching heat exchange plate before improvement, not only the welding seam between the third channel unit and the fourth channel unit and the contact thermal resistance generated by the welding seam are avoided, and the heat exchange efficiency is improved, but also the welding deformation and misplacement are avoided in the process of diffusion welding of the second plate structure to form the heat exchange core, so that the deviation between the fluid channel of the solid plate and the theoretically designed channel structure is reduced.

[0026] 5. The heat exchange core provided by the present application, the second plate structure is an integral forming structure, the second plate structure comprises a third channel unit, a fourth channel unit and a rib; the third channel unit and the fourth channel unit are respectively arranged on both sides of the rib along a first direction; by arranging the second plate structure, a plurality of groups of the second plate structure are stacked along the first direction to form the heat exchange core; compared with the single-side etching heat exchange plate before improvement, not only the welding seam between the third channel unit and the fourth channel unit and the contact thermal resistance generated by the welding seam are avoided, and the heat exchange efficiency is improved, but also the welding deformation and misplacement are avoided in the process of diffusion welding of the second plate structure to form the heat exchange core, so that the deviation between the fluid channel of the solid plate and the theoretically designed channel structure is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the specific embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0028] Figure 1 The cross-sectional structure schematic diagram of the single-side etching heat exchange plate before improvement;

[0029] Figure 2 The cross-sectional structure schematic diagram of the welding connection of two single-side etching heat exchange plates before improvement;

[0030] Figure 3 The cross-sectional structure schematic diagram of the first plate structure of the heat exchange core of the present application;

[0031] Figure 4 The cross-sectional structure schematic diagram of the second plate structure of the heat exchange core of the present application;

[0032] Figure 5 The top view structure schematic diagram of the first plate structure of the heat exchange core of the present application;

[0033] Figure 6 Fig. 2 is a top view of a second plate structure of a heat exchange core of the present application;

[0034] Figure 7 Fig. 3 is a cross-sectional view of a connection between the second plate structure of the heat exchange core of the present application and a partition plate;

[0035] Figure 8 Fig. 4 is a schematic view of an S-Fin type flow channel structure of the heat exchange core of the present application;

[0036] Figure 9 Fig. 5 is a schematic view of a straight type flow channel structure of the heat exchange core of the present application;

[0037] Figure 10 Fig. 6 is a schematic view of a Zigzag type flow channel structure of the heat exchange core of the present application;

[0038] Figure 11 Fig. 7 is a schematic view of a cylindrical type flow channel structure of the heat exchange core of the present application;

[0039] Figure 12 Fig. 8 is a schematic view of a diamond type flow channel structure of the heat exchange core of the present application;

[0040] Figure 13 Fig. 9 is a schematic view of a water drop type flow channel structure of the heat exchange core of the present application;

[0041] Figure 14 Fig. 10 is a schematic view of a rectangular passage cross-sectional structure of the heat exchange core of the present application;

[0042] Figure 15 Fig. 11 is a schematic view of a circular passage cross-sectional structure of the heat exchange core of the present application;

[0043] Figure 16 Fig. 12 is a schematic view of a semi-circular passage cross-sectional structure of the heat exchange core of the present application;

[0044] Figure 17 Fig. 13 is a schematic view of an elliptical passage cross-sectional structure of the heat exchange core of the present application;

[0045] Figure 18 Fig. 14 is a front view of a straight type heat exchange plate structure of the heat exchange core of the present application;

[0046] Figure 19 Fig. 15 is a back view of the straight type heat exchange plate structure of the heat exchange core of the present application;

[0047] Figure 20 Fig. 16 is a schematic view of a transparent structure of the straight type heat exchange plate structure of the heat exchange core of the present application.

[0048] BRIEF DESCRIPTION OF THE DRAWINGS

[0049] 1、first plate structure; 11、first channel unit; 110、first protrusion; 12、second channel unit; 120、second protrusion; 13、plate wall;

[0050] 2、second plate structure; 21、third channel unit; 210、third protrusion; 22、fourth channel unit; 220、fourth protrusion; 23、rib;

[0051] 3、partition plate. DETAILED DESCRIPTION

[0052] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0053] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0054] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0055] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0056] In combination Figures 3-20 As shown in the drawings, the heat exchange core provided by the embodiment includes:

[0057] The first plate structure 1 is provided with a first channel unit 11 and a second channel unit 12 along a first direction; the first channel unit 11 and the second channel unit 12 are completely separated by a plate wall 13; the first channel unit 11 and the second channel unit 12 are not communicated with each other;

[0058] The second plate structure 2 has a third channel unit 21 and a fourth channel unit 22 arranged along the first direction; the third channel unit 21 and the fourth channel unit 22 are connected by ribs 23; the third channel unit 21 and the fourth channel unit 22 are at least partially interconnected.

[0059] At least one of the first plate structure 1 and the second plate structure 2 is adapted to be stacked along a first direction to form a heat exchange core.

[0060] It should be noted that the first direction refers to Figure 3 The direction indicated by the arrow "X"; both the first plate structure 1 and the second plate structure 2 are integrally formed structures; at least one of the first plate structure 1 and the second plate structure 2 is stacked along the first direction to form a heat exchange core, and either the first plate structure 1 or the second plate structure 2 can be stacked along the first direction to form a heat exchange core, and the first plate structure 1 and the second plate structure 2 can also be stacked simultaneously along the first direction to form a heat exchange core, which can be adjusted according to actual production needs and is not limited to the situation described in this embodiment; the integral forming method of the first channel unit 11, the second channel unit 12 and the plate wall 13 includes but is not limited to etching, which can be adjusted according to actual production and / or usage, and is not limited to the situation described in this embodiment; the dimensions of the first channel unit 11 and the second channel unit 12 of the first plate structure 1 can be the same or different, which can be adjusted according to design needs and is not limited to the situation described in this embodiment; the dimensions of the third channel unit 21 and the fourth channel unit 22 of the second plate structure 2 can be the same or different, which can be adjusted according to design needs and is not limited to the situation described in this embodiment.

[0061] Optionally, the first plate structure 1 is formed by opening a central plate wall 13 and a first channel unit 11 and a second channel unit 12 on both sides of the plate wall 13 from an integral plate material along a first direction, thereby maintaining the integral or monolithic structure of the first plate structure 1. Compared with the single-sided etched heat exchange plate before the improvement, the weld seam between the first channel unit 11 and the second channel unit 12 and the contact thermal resistance generated therefrom are avoided, thus improving the heat exchange efficiency.

[0062] Optionally, the second plate structure 2 is formed by cutting a central rib 23 and third channel units 21 and fourth channel units 22 on both sides of the rib 23 from a single plate material along the first direction; thereby maintaining the integral or monolithic structure of the second plate structure 2, and compared with the single-sided etched heat exchange plate before the improvement, avoiding the weld seam between the third channel unit 21 and the fourth channel unit 22 and the contact thermal resistance generated therefrom, thus improving the heat exchange efficiency.

[0063] Optionally, any one of the first plate structure 1 and the second plate structure 2 is stacked along a first direction to form a heat exchange core.

[0064] Optionally, the first plate structure 1 can be stacked alone to form a heat exchange core; the first plate structure 1 is in multiple groups, and the multiple groups of the first plate structure 1 are stacked along a first direction to form a heat exchange core.

[0065] Optionally, the second plate structure 2 can be stacked alone to form a heat exchange core; the second plate structure 2 is in multiple groups, and the multiple groups of the second plate structure 2 are stacked along a first direction to form a heat exchange core.

[0066] Optionally, the first plate structure 1 and the second plate structure 2 can also be stacked along a first direction at the same time to form a heat exchange core.

[0067] Optionally, during the process of stacking at the same time, each adjacent two groups of the first plate structure 1 can be provided with at least one group of the second plate structure 2, so as to increase the size of the channel of the heat exchange core.

[0068] Optionally, the plate wall 13 completely separates the first channel unit 11 and the second channel unit 12, so that the first channel unit 11 and the second channel unit 12 are independent of each other and are not connected to each other, and then the medium in the first channel unit 11 and the medium in the second channel unit 12 can exchange heat through the plate wall 13, which is beneficial to meet the demand of heat exchange of different kinds of media.

[0069] Optionally, the third channel unit 21 and the fourth channel unit 22 are at least partially connected to each other, so that the media in the third channel unit 21 and the fourth channel unit 22 can exchange heat through the intersection and fusion, which is beneficial to improve the efficiency of heat exchange of the same kind of medium.

[0070] Optionally, the third channel unit 21 and the fourth channel unit 22 extend along a first direction to form an integral.

[0071] In the embodiment, the heat exchange core comprises: a first plate structure 1, which is provided with a first channel unit 11 and a second channel unit 12 along a first direction; the first channel unit 11 and the second channel unit 12 are completely separated by a plate wall 13; a second plate structure 2, which is provided with a third channel unit 21 and a fourth channel unit 22 along the first direction; the third channel unit 21 and the fourth channel unit 22 are connected by a rib 23; at least one of the first plate structure 1 and the second plate structure 2 is stacked to form the heat exchange core. Compared with the single-sided etched heat exchange plate before improvement, not only the welding seam between the two sides of the channel along the first direction and the contact thermal resistance generated thereby are avoided, and the heat exchange efficiency is improved, but also welding deformation and misplacement are avoided in the process of diffusion welding of the first plate structure 1 and / or the second plate structure 2 to form the heat exchange core, so as to reduce the deviation between the fluid channel of the solid plate and the theoretically designed channel structure.

[0072] Specifically, the first channel unit 11, the second channel unit 12 and the plate wall 13 are integrally formed.

[0073] In combination with FIGS. 1-2, Figure 3 , Figure 5 In the embodiment, the first plate structure 1 is an integral structure, which comprises the first channel unit 11, the second channel unit 12 and the plate wall 13; the first channel unit 11 and the second channel unit 12 are respectively arranged on the two sides of the plate wall 13 along the first direction; a plurality of the first plate structure 1 is stacked along the first direction to form the heat exchange core. Compared with the single-sided etched heat exchange plate before improvement, not only the welding seam between the first channel unit 11 and the second channel unit 12 and the contact thermal resistance generated thereby are avoided, and the heat exchange efficiency is improved, but also welding deformation and misplacement are avoided in the process of diffusion welding of the first plate structure 1 to form the heat exchange core, so as to reduce the deviation between the fluid channel of the solid plate and the theoretically designed channel structure.

[0074] Specifically, the first plate structure 1 forms the first channel unit 11 and the second channel unit 12 through double-sided half etching; the first channel unit 11 comprises a plurality of first protrusions 110, and a first flow channel is formed between every two adjacent groups of the first protrusions 110; the second channel unit 12 comprises a plurality of second protrusions 120, and a second flow channel is formed between every two adjacent groups of the second protrusions 120; the first flow channel and the second flow channel are not communicated with each other.

[0075] In combination with FIGS. 1-2, Figure 3As shown, in the embodiment, the first plate structure 1 is formed by double-sided half-etching along a first direction to form the first channel unit 11 and the second channel unit 12; the first channel unit 11 includes a plurality of groups of first protrusions 110, and each adjacent two groups of the first protrusions 110 are arranged at intervals, so that a first flow channel is formed between each adjacent two groups of the first protrusions 110; the second channel unit 12 includes a plurality of groups of second protrusions 120, and each adjacent two groups of the second protrusions 120 are arranged at intervals, so that a second flow channel is formed between each adjacent two groups of the second protrusions 120; the first flow channel and the second flow channel are completely separated by the plate wall 13 and are not connected to each other, thereby meeting the needs of heat exchange of different media.

[0076] Specifically, the third channel unit 21, the fourth channel unit 22 and the rib 23 are integrally formed.

[0077] In combination Figure 4 , Figure 6 As shown, in the embodiment, the second plate structure 2 is an integrally formed structure, and the second plate structure 2 includes a third channel unit 21, a fourth channel unit 22 and a rib 23; the third channel unit 21 and the fourth channel unit 22 are arranged on both sides of the rib 23 along a first direction; by arranging the second plate structure 2, a plurality of groups of the second plate structure 2 are stacked along the first direction to form a heat exchange core, compared with the heat exchange plate of the prior art which is formed by single-sided etching, not only the welding seam between the third channel unit 21 and the fourth channel unit 22 and the contact thermal resistance generated thereby are avoided, and the heat exchange efficiency is improved, but also the welding deformation and misplacement are avoided in the process of diffusion welding the second plate structure 2 to form the heat exchange core, thereby reducing the deviation between the fluid channel of the solid plate and the theoretically designed channel structure.

[0078] Specifically, the second plate structure 2 is formed by double-sided half-etching and then hollowing to form the third channel unit 21 and the fourth channel unit 22; the third channel unit 21 includes a plurality of groups of third protrusions 210, and a third flow channel is formed between each adjacent two groups of the third protrusions 210; the fourth channel unit 22 includes a plurality of groups of fourth protrusions 220, and a fourth flow channel is formed between each adjacent two groups of the fourth protrusions 220; the third flow channel and the fourth flow channel at least partially communicate with each other.

[0079] In combination Figure 4As shown, in the embodiment, the second plate structure 2 is formed by double-sided half-etching and re-hollowing to form the third channel unit 21 and the fourth channel unit 22; the third channel unit 21 includes multiple groups of third protrusions 210, and each two adjacent groups of the third protrusions 210 are arranged at intervals, so that a third flow channel is formed between each two adjacent groups of the third protrusions 210; the fourth channel unit 22 includes multiple groups of fourth protrusions 220, and each two adjacent groups of the fourth protrusions 220 are arranged at intervals, so that a fourth flow channel is formed between each two adjacent groups of the fourth protrusions 220; the third flow channel and the fourth flow channel at least partially communicate with each other, thereby improving the efficiency of heat exchange of the same medium.

[0080] Specifically, the heat exchange core further includes a partition plate 3, and the partition plate 3 is adapted to be arranged between any two adjacent groups of the second plate structure 2 along the first direction.

[0081] In combination Figure 7 As shown, in the embodiment, the heat exchange core further includes a partition plate 3, and when multiple groups of the first plate structure 1 are stacked along the first direction to form a heat exchange core, the partition plate 3 is arranged between any two adjacent groups of the second plate structure 2, so that an independent flow channel is formed between the two adjacent groups of the second plate structure 2.

[0082] Specifically, the first channel unit 11 and the second channel unit 12 can flow the same medium or different media; the third channel unit 21 and the fourth channel unit 22 can only flow the same medium.

[0083] It should be noted that when the first plate structure 1 is stacked alone to form a heat exchange core, the first channel unit 11 and the second channel unit 12 can flow the same medium or different media; when the second plate structure 2 is stacked alone to form a heat exchange core, the third channel unit 21 and the fourth channel unit 22 can only flow the same medium; when the first plate structure 1 or the partition plate 3 is arranged between any two adjacent groups of the second plate structure 2, the first plate structure 1 or the partition plate 3 can flow different media on both sides along the first direction.

[0084] Specifically, the channel structure of the first plate structure 1 and / or the second plate structure 2 includes but is not limited to S-Fin type, straight line type, Zigzag type, cylindrical type, diamond type, or water drop type.

[0085] It should be noted that in combination Figures 8-13 As shown, the channel structure of the first plate structure 1 and / or the second plate structure 2 can be Figure 8 S-Fin type in the S-Fin type, Figure 9 straight line type in the straight line type, Figure 10 Zigzag type in the Zigzag type,Figure 11 cylindrical type in FIG. 1, Figure 12 diamond type in FIG. 2, and Figure 13 drop type in FIG. 3, and other shapes, which can be adjusted according to actual use, and are not limited to the cases described in the embodiments.

[0086] Specifically, the channel cross section of the first plate structure 1 and / or the second plate structure 2 includes but is not limited to a rectangle, a circle, a semicircle, or an ellipse.

[0087] It should be noted that, as shown in FIGS. 1-3, the channel cross section shape of the first plate structure 1 and / or the second plate structure 2 can be a rectangular cross section in FIG. 1, Figures 14-17 a circular cross section in FIG. 2, Figure 14 a semicircular cross section in FIG. 3, and Figure 15 an elliptical cross section in FIG. 4, and other shapes, which can be adjusted according to actual use, and are not limited to the cases described in the embodiments. Figure 16 Figure 17 The embodiments also provide a heat exchanger, in particular a printed circuit board type heat exchanger, which includes:

[0088] a heat exchange core as described above;

[0089] the heat exchange core is stacked in the first direction by at least one of the first plate structure 1 and the second plate structure 2;

[0090] a side plate arranged at at least one side of the heat exchange core in the first direction, and adapted to be connected with the first plate structure 1 and / or the second plate structure 2.

[0091] It should be noted that the heat exchange core is stacked in the first direction by at least one of the first plate structure 1 and the second plate structure 2, and is formed by welding, and the heat exchange core can be stacked and welded by any one of the first plate structure 1 and the second plate structure 2, or can be stacked and welded by both the first plate structure 1 and the second plate structure 2, which can be adjusted according to actual use, and are not limited to the cases described in the embodiments; the welding mode between any two adjacent groups of the first plate structure 1 and / or the second plate structure 2 includes but is not limited to diffusion welding, brazing, and argon arc welding, which can be adjusted according to actual production, and are not limited to the cases described in the embodiments.

[0092] Optionally, the heat exchange core is provided with a first interface, a second interface, a third interface, and a fourth interface, which are adapted to connect the heat exchange core with an external structure.

[0093] Optionally, the heat exchange core is provided with a first interface, a second interface, a third interface, and a fourth interface, which are adapted to connect the heat exchange core with an external structure.

[0094] ​Optionally, the heat exchanger further comprises:

[0095] a first joint, one end of which is connected with the first interface and the other end of which is adapted to be connected with the outlet of the heat source;

[0096] a second joint, one end of which is connected with the second interface and the other end of which is adapted to be connected with the inlet of the heat source;

[0097] a third joint, one end of which is connected with the third interface and the other end of which is adapted to be connected with the outlet of the cold source;

[0098] a fourth joint, one end of which is connected with the fourth interface and the other end of which is adapted to be connected with the inlet of the cold source.

[0099] Obviously, the above embodiments are merely exemplary and are not intended to limit the embodiments. Based on the above description, one of ordinary skill in the art can make other variations or changes in different forms. It is not necessary or possible to enumerate all the embodiments. The obvious variations or changes derived therefrom are still within the protection scope of the present application.

Claims

1. A heat exchange core, characterized in that, include: The first plate structure (1) has a first channel unit (11) and a second channel unit (12) arranged along a first direction; the first channel unit (11) and the second channel unit (12) are completely separated by a plate wall (13); the first channel unit (11) and the second channel unit (12) are not connected to each other; The second plate structure (2) has a third channel unit (21) and a fourth channel unit (22) arranged along the first direction; the third channel unit (21) and the fourth channel unit (22) are connected by ribs (23); the third channel unit (21) and the fourth channel unit (22) are at least partially interconnected; At least one of the first plate structure (1) and the second plate structure (2) is adapted to be stacked along a first direction to form a heat exchange core.

2. The heat exchange core according to claim 1, characterized in that, The first channel unit (11), the second channel unit (12), and the plate wall (13) are integrally formed.

3. The heat exchange core according to claim 2, characterized in that, The first plate structure (1) is formed by double-sided half etching to form the first channel unit (11) and the second channel unit (12); the first channel unit (11) includes multiple sets of first protrusions (110), and a first flow channel is formed between each two adjacent sets of first protrusions (110); the second channel unit (12) includes multiple sets of second protrusions (120), and a second flow channel is formed between each two adjacent sets of second protrusions (120); the first flow channel and the second flow channel are not connected to each other.

4. The heat exchange core according to claim 1, characterized in that, The third channel unit (21), the fourth channel unit (22), and the rib (23) are integrally formed.

5. The heat exchange core according to claim 4, characterized in that, The second plate structure (2) is formed by double-sided half etching and then hollowing out to form the third channel unit (21) and the fourth channel unit (22); the third channel unit (21) includes multiple sets of third protrusions (210), and a third flow channel is formed between each two adjacent sets of the third protrusions (210); the fourth channel unit (22) includes multiple sets of fourth protrusions (220), and a fourth flow channel is formed between each two adjacent sets of the fourth protrusions (220); the third flow channel and the fourth flow channel are at least partially interconnected.

6. The heat exchange core according to claim 5, characterized in that, The heat exchange core also includes a partition (3), which is adapted to be disposed between any two adjacent sets of the second plate structures (2) along a first direction.

7. The heat exchange core according to any one of claims 1-6, characterized in that, The first channel unit (11) and the second channel unit (12) can both circulate the same medium and different media; the third channel unit (21) and the fourth channel unit (22) can only circulate the same medium.

8. The heat exchange core according to claim 7, characterized in that, The channel structure of the first plate structure (1) and / or the second plate structure (2) includes S-Fin type, straight type, Zigzag type, cylindrical type, rhombus type or teardrop type.

9. The heat exchange core according to claim 7, characterized in that, The channel cross-section of the first plate structure (1) and / or the second plate structure (2) includes rectangular, circular, semi-circular or elliptical shapes.

10. A heat exchanger, characterized in that, include: The heat exchange core as described in any one of claims 1-9 above; The heat exchange core is formed by stacking at least one of a first plate structure (1) and a second plate structure (2) along a first direction; A side plate is disposed on at least one side of the heat exchange core along a first direction and is adapted to be connected to the first plate structure (1) and / or the second plate structure (2).

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