Heat exchanger core and heat exchanger
By designing stacked core plate units and flow channel structures in the heat exchanger core, and using a design with opposite medium flow directions to extend the fluid path, the problem of insufficient efficiency of the heat exchanger in a limited space is solved, and more efficient heat exchange is achieved.
Patent Information
- Application Number
- CN202520529882.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-03-24
AI Technical Summary
Existing heat exchangers have short fluid channel lengths within limited installation space, resulting in insufficient heat exchange efficiency and making it difficult to achieve sufficient heat exchange.
A heat exchanger core is designed, which adopts a first core plate unit and a second core plate unit stacked in a stacked manner, and is configured with vertical and parallel flow channels and passages. The medium flow direction is opposite, the fluid path is extended, and it is connected to the external medium flow pipeline through the pipe joint unit.
Without changing the core size, the fluid path is extended to improve heat exchange efficiency and meet higher heat exchange requirements.
Smart Images
Figure CN223882815U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to heat exchanger technical field, specifically, relate to a heat exchanger core and heat exchanger. BACKGROUND
[0002] As the core component of the whole vehicle heat management system, the performance of the heat exchanger directly affects the thermal efficiency and space layout of the vehicle. However, the existing heat exchanger is limited in application due to its short fluid passage length, resulting in insufficient heat exchange efficiency, especially in limited installation space, it is difficult to achieve sufficient heat exchange. SUMMARY
[0003] The utility model discloses a heat exchanger core and heat exchanger, which can extend the fluid path in limited space, thereby improving the heat exchange efficiency and adapting to higher heat exchange demand.
[0004] The embodiment of the utility model can be realized as follows:
[0005] In a first aspect, the utility model provides a heat exchanger core, which comprises a first core plate unit and a second core plate unit stacked.
[0006] The first core plate unit is configured with at least one first flow channel perpendicular to the stacking direction of the first core plate unit and the second core plate unit, and a first channel and a second channel communicated with the first flow channel; the second core plate unit is configured with at least one second flow channel parallel to the first flow channel, and a third channel and a fourth channel communicated with the second flow channel;
[0007] Among them, the second channel and the third channel are at least partially aligned and communicated along the stacking direction of the first core plate unit and the second core plate unit, and the direction of the first flow channel guiding medium flow can be opposite to the direction of the second flow channel guiding medium flow. In an optional embodiment, the first channel and the second channel are located at both ends of the first core plate unit, the third channel and the fourth channel are located at both ends of the second core plate unit, and the second channel and the third channel are coaxial.
[0008] In an optional embodiment, the first core plate unit comprises a plurality of first core plates stacked, and the first flow channel is located between two adjacent first core plates; the second core plate unit comprises a plurality of second core plates stacked, and the second flow channel is located between two adjacent second core plates.
[0009] In an optional embodiment, the first core plate unit comprises a plurality of first core plates stacked, and the first flow channel is located in one of the first core plates; the second core plate unit comprises a plurality of second core plates stacked, and the second flow channel is located in one of the second core plates.
[0010] In an optional embodiment, the port of the first channel and the port of the fourth channel are both located on the side of the first core plate unit away from the second core plate unit, and the side of the first core plate unit away from the second core plate unit is further provided with a medium inlet and a medium outlet, the medium inlet and the medium outlet being respectively for another medium for heat exchange with the medium in the first flow channel and the second flow channel.
[0011] In an optional embodiment, the first core plate unit is further provided with a flow guide channel in communication with the fourth channel, the flow guide channel and at least part of the fourth channel being aligned in the stacking direction of the first core plate unit and the second core plate unit, and the fourth channel is not in communication with the first flow channel.
[0012] In an optional embodiment, the flow guide channel and the first channel are located on the same end of the first core plate unit.
[0013] In an optional embodiment, the port of the first channel is located on the side of the first core plate unit away from the second core plate unit, and the port of the fourth channel is located on the side of the second core plate unit away from the first core plate unit.
[0014] In an optional embodiment, the heat exchanger core further comprises a third core plate unit, the third core plate unit being located on the side of the second core plate unit away from the first core plate unit;
[0015] The third core plate unit is provided with at least one third flow channel, and a fifth channel and a sixth channel in communication with the third flow channel;
[0016] The fifth channel is in communication with the fourth channel, and the direction in which the third flow channel guides the medium to flow is opposite to the direction in which the second flow channel guides the medium to flow.
[0017] In a second aspect, the utility model provides a kind of heat exchanger, and heat exchanger includes pipe joint unit and the heat exchanger core described above;
[0018] The pipe joint unit is connected with the heat exchanger core, and the first channel and the fourth channel are communicated with external medium flow pipeline by the pipe joint unit.
[0019] The heat exchanger core and the heat exchanger provided in the embodiments of the utility model have the following beneficial effects:
[0020] The heat exchanger core comprises a first core plate unit and a second core plate unit arranged in a stack; the first core plate unit is configured with at least one first flow channel perpendicular to the stacking direction of the first core plate unit and the second core plate unit, and a first passage and a second passage communicated with the first flow channel; the second core plate unit is configured with at least one second flow channel parallel to the first flow channel, and a third passage and a fourth passage communicated with the second flow channel; wherein the second passage and the third passage are at least partially aligned and communicated along the stacking direction of the first core plate unit and the second core plate unit, and the direction of the medium flow guided by the first flow channel can be opposite to the direction of the medium flow guided by the second flow channel. The heat exchanger core can extend the fluid path in a limited space, thereby improving the heat exchange efficiency and adapting to higher heat exchange requirements. BRIEF DESCRIPTION OF DRAWINGS
[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.
[0022] Figure 1 A cross-sectional view of the heat exchanger core provided for the present embodiment;
[0023] Figure 2 A structural schematic view of the heat exchanger core provided for the present embodiment;
[0024] Figure 3 A cross-sectional view of the first core plate unit provided for the present embodiment;
[0025] Figure 4 A cross-sectional view of the second core plate unit provided for the present embodiment;
[0026] Figure 5 A structural schematic view of the heat exchanger provided for the present embodiment.
[0027] Icon: 100-heat exchanger core; 110-first core plate unit; 120-second core plate unit; 111-first flow channel; 112-first passage; 113-second passage; 121-second flow channel; 122-third passage; 123-fourth passage; 114-first core plate; 124-second core plate; 115-flow guide passage; 200-heat exchanger; 210-tube joint unit. DETAILED DESCRIPTION
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0031] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0032] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.
[0033] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.
[0034] Please refer to Figures 1-4 This embodiment provides a heat exchanger core 100, which includes a first core plate unit 110 and a second core plate unit 120 stacked together.
[0035] The first core board unit 110 is provided with at least one first flow channel 111 perpendicular to the stacking direction of the first core board unit 110 and the second core board unit 120, and a first channel 112 and a second channel 113 communicating with the first flow channel 111; the second core board unit 120 is provided with at least one second flow channel 121 parallel to the first flow channel 111, and a third channel 122 and a fourth channel 123 communicating with the second flow channel 121.
[0036] Wherein, along the stacking direction of the first core plate unit 110 and the second core plate unit 120, the second channel 113 and the third channel 122 are at least partially aligned and directly communicated, and the direction of the first flow channel 111 guiding the medium flow can be opposite to the direction of the second flow channel 121 guiding the medium flow.
[0037] Please refer to Figures 1-4 The working principle of the heat exchanger core 100 is as follows:
[0038] The heat exchanger core 100 includes the first core plate unit 110 and the second core plate unit 120 stacked together; the first core plate unit 110 is configured with at least one first flow channel 111, and a first channel 112 and a second channel 113 communicated with the first flow channel 111; the second core plate unit 120 is configured with at least one second flow channel 121, and a third channel 122 and a fourth channel 123 communicated with the second flow channel 121;
[0039] Taking the first channel 112 and the fourth channel 123 as the inlet and the outlet respectively, the medium can flow in the heat exchanger core 100 along the following flow path:
[0040] Taking the first channel 112 as the inlet and the fourth channel 123 as the outlet, the medium flows into the heat exchanger core from the first channel 112, flows into the first flow channel 111 from the first channel 112, then flows into the second channel 113 from the first flow channel 111, flows into the third channel 122 from the second channel 113, then flows into the second flow channel 121 from the third channel 122, and flows out of the heat exchanger core 100 from the fourth channel 123, the flow directions of the first flow channel 111 and the second flow channel 121 are opposite;
[0041] Taking the first channel 112 as the outlet and the fourth channel 123 as the inlet, the medium flows into the heat exchanger core from the fourth channel 123, flows into the second flow channel 121 from the fourth channel 123, then flows into the third channel 122 from the second flow channel 121, flows into the second channel 113 from the third channel 122, then flows into the first flow channel 111 from the second channel 113, and flows out of the heat exchanger core 100 from the first channel 112, the flow directions of the first flow channel 111 and the second flow channel 121 are opposite;
[0042] It should be noted that the above path is one of the multiple flow paths, and the path can also be changed by adjusting the positions of the inflow ports and outflow ports of the first channel 112 and the fourth channel 123 on the heat exchanger core 100.
[0043] In the embodiment, the first flow channel 111 and the second flow channel 121 are arranged in parallel, and the first flow channel 111 and the second flow channel 121 are used for the medium flow in the heat exchange process. The first passage 112 and the second passage 113, which are in communication with the first flow channel 111, are respectively used as the inlet and the outlet of the medium flowing into the first flow channel 111. The third passage 122 and the fourth passage 123, which are in communication with the second flow channel 121, are respectively used as the inlet and the outlet of the medium flowing into the second flow channel 121.
[0044] In the embodiment, the second passage 113 and the third passage 122 are in communication, so that the medium flowing into the first passage 112 can be introduced into the second flow channel 121 through the second passage 113 and the third passage 122 for heat exchange. The direction of the medium flow guided by the first flow channel 111 is opposite to the direction of the medium flow guided by the second flow channel 121. Thus, after being introduced into the heat exchanger core 100, the medium can flow through the first flow channel 111 and the second flow channel 121, i.e., the medium can pass through the first core plate unit 110 and the second core plate unit 120, so that the medium can flow back to the second core plate unit 120 for heat exchange after passing through the first core plate unit 110 for heat exchange. In this way, compared with the prior art in which the medium flows in one direction and in one flow channel for heat exchange, the heat exchanger 200 can prolong the fluid path in a limited space without changing the overall size of the core, thereby improving the heat exchange efficiency and meeting higher heat exchange requirements.
[0045] Further, referring to Figures 1-4 In the embodiment, when the first passage 112, the second passage 113, the third passage 122, and the fourth passage 123 are arranged, the first passage 112 and the second passage 113 are located at two ends of the first core plate unit 110, the third passage 122 and the fourth passage 123 are located at two ends of the second core plate unit 120, and the second passage 113 and the third passage 122 are coaxial. In this way, the length of the first flow channel 111 and the second flow channel 121 can be prolonged.
[0046] When the first core plate unit 110 and the second core plate unit 120 are arranged, the first core plate unit 110 includes a plurality of first core plates 114 arranged in layers, and the first flow channel 111 is located between two adjacent first core plates 114. The second core plate unit 120 includes a plurality of second core plates 124 arranged in layers, and the second flow channel 121 is located between two adjacent second core plates 124.
[0047] It should be noted that, in the embodiment, the first core plate unit 110 includes a plurality of first core plates 114, the second core plate unit 120 includes a plurality of second core plates 124, and the first flow channel 111 is arranged between two adjacent first core plates 114, and the second flow channel 121 is arranged between two adjacent second core plates 124. In this way, the medium in the first flow channel 111 and the medium in the second flow channel 121 exchange heat with the medium in the first core plate 114 and the medium in the second core plate 124.
[0048] In other embodiments of the utility model, on the basis that the first core plate unit 110 includes a plurality of first core plates 114 arranged in layers, and the second core plate unit 120 includes a plurality of second core plates 124 arranged in layers, the first flow channel 111 can be located in one of the first core plates 114, and the second flow channel 121 can be located in one of the second core plates 124. Moreover, the medium in the first flow channel 111 and the medium in the second flow channel 121 exchange heat with the medium between adjacent first core plates 114 and the medium between adjacent second core plates 124.
[0049] It should be noted that, please refer to Figures 1-4 In the embodiment, as can be known from the above, the first channel 112, the first flow channel 111, the second channel 113, the third channel 122, the second flow channel 121 and the fourth channel 123 are sequentially connected, so that when the inlet and outlet of the medium are configured, one of the first channel 112 and the fourth channel 123 can be used as the medium inlet of the heat exchanger core 100, and the other can be used as the medium outlet of the heat exchanger core 100. Based on this, when the first channel 112 is used as the inlet, the medium is introduced from the first channel 112, and then flows through the first flow channel 111, the second channel 113, the third channel 122, the second flow channel 121 and the fourth channel 123, and exchanges heat in the first flow channel 111 and the second flow channel 121. The medium after heat exchange is then discharged from the fourth channel 123.
[0050] That is, one flow path of the medium is: the medium flows into the heat exchanger core from the first channel 112, flows into the first flow channel 111 from the first channel 112, and then flows into the second channel 113 from the first flow channel 111, flows into the third channel 122 from the second channel 113, flows into the second flow channel 121 from the third channel 122, and flows out of the heat exchanger core from the fourth channel 123. The flow direction of the medium in the first flow channel 111 and the second flow channel 121 is opposite.
[0051] When the fourth channel 123 is used as an inlet, the medium is introduced from the fourth channel 123, and then flows through the second flow channel 121, the third channel 122, the second channel 113, the first flow channel 111 and the first channel 112, and exchanges heat in the first flow channel 111 and the second flow channel 121. The medium after heat exchange is discharged from the first channel 112.
[0052] Therefore, based on the above structure, to simplify the structure of the heat exchanger core 100, the port of the first channel 112 and the port of the fourth channel 123 are located on the side of the first core plate unit 110 away from the second core plate unit 120. In this way, the connection of the first channel 112 and the fourth channel 123 with the external pipe joint structure can be simplified, so that the heat exchanger core 100 is connected with the external medium flow pipeline. Moreover, on this basis, the side of the first core plate unit 110 away from the second core plate unit 120 is also provided with a medium inlet and a medium outlet, which are used for another medium to exchange heat with the medium in the first flow channel 111 and the second flow channel 121, respectively. Through this arrangement, the inlet and outlet of the two kinds of medium of the heat exchanger core 100 are located on the same side, so that the connection with the inlet and outlet pipe body is facilitated, and the structure can be optimized to reduce the structure size.
[0053] Moreover, on this basis, to make the port of the fourth channel 123 located on the same side of the heat exchanger core 100 as the port of the first channel 112, the first core plate unit 110 is also provided with a flow guide channel 115 communicating with the fourth channel 123. The flow guide channel 115 is aligned with at least part of the fourth channel 123 in the stacking direction of the first core plate unit 110 and the second core plate unit 120. The fourth channel 123 does not communicate with the first flow channel 111. Through the arrangement of the flow guide channel 115, the position of the port of the fourth channel 123 can be changed. When the flow guide channel 115 is arranged, the flow guide channel 115 is directly connected with the fourth channel 123, and the outer periphery of the flow guide channel 115 blocks the first flow channel 111 and the second flow channel 121, that is, the flow guide channel 115 is not directly connected with the first flow channel 111 and the second flow channel 121.
[0054] Therefore, when the flow guide channel 115 is arranged, the flow path of the medium is: the medium flows into the heat exchanger core from the first channel 112, flows into the first flow channel 111 from the first channel 112, and then flows into the second channel 113 from the first flow channel 111, flows into the third channel 122 from the second channel 113, flows into the second flow channel 121 from the third channel 122, and then flows out of the heat exchanger core through the fourth channel 123 and the flow guide channel 115. The flow directions of the medium in the first flow channel 111 and the second flow channel 121 are opposite.
[0055] And for simplifying the structure of the flow guide channel 115, based on the structure that the first channel 112 and the second channel 113 are located at two ends of the first core plate unit 110, and the third channel 122 and the fourth channel 123 are located at two ends of the second core plate unit 120, in order to simplify the manufacturing of the heat exchanger core 100, the flow guide channel 115 and the first channel 112 can be located at the same end of the first core plate unit 110, and on this basis, the flow guide channel 115 and the fourth channel 123 can also be coaxially arranged.
[0056] Different from the structure that the port of the first channel 112 and the port of the fourth channel 123 are located at the same side, in other embodiments of the present application, the port of the first channel 112 can be located at the side of the first core plate unit 110 away from the second core plate unit 120, and the port of the fourth channel 123 can be located at the side of the second core plate unit 120 away from the first core plate unit 110, that is, the port of the first channel 112 and the port of the fourth channel 123 can be distributed on opposite sides of the heat exchanger core 100.
[0057] Based on the above structure, since the direction of the medium flow guided by the first flow channel 111 is opposite to the direction of the medium flow guided by the second flow channel 121, the medium flow path in the heat exchanger core 100 is bent and extended, based on this, the number of core plate units can be increased based on the structure of arranging the first core plate unit 110 and the second core plate unit 120, and the structure of the increased number of core plates can adopt the structure of the first core plate unit 110 or the structure of the second core plate unit 120, specifically, the heat exchanger core 100 further comprises a third core plate unit, the third core plate unit is located at the side of the second core plate unit 120 away from the first core plate unit 110, the structure of the third core plate unit is the same as the structure of the first core plate unit 110, at least one third flow channel is arranged in the third core plate unit, and a fifth channel and a sixth channel communicated with the third flow channel are arranged in the third core plate unit, wherein the fifth channel is communicated with the fourth channel 123, and the direction of the medium flow guided by the third flow channel is opposite to the direction of the medium flow guided by the second flow channel 121.
[0058] The third flow channel can be arranged in the third core plate unit based on the fact that the ports of the first channel 112 and the ports of the fourth channel 123 are distributed on opposite sides of the heat exchanger core 100, and the fifth channel in communication with the third flow channel is in communication with the fourth channel 123, and the third flow channel guides the flow direction of the medium opposite to the flow direction of the medium guided by the second flow channel 121, so that the heat exchanger core 100 includes three core plate units, and the flow path inside the core plate units is arranged in a meandering manner, so that the heat exchange path of the fluid can be prolonged, thereby improving the heat exchange efficiency, and on this basis, the channels for introducing and discharging the medium to the first flow channel 111, the second flow channel 121 and the third flow channel are the first channel 112 and the sixth channel.
[0059] Based on the above, Figures 1-5 The embodiment further provides a heat exchanger 200, which comprises a pipe joint unit 210 and the heat exchanger core 100 described above; the pipe joint unit 210 is connected with the heat exchanger core 100, and the first channel 112 and the fourth channel 123 are in communication with the external medium flow pipeline through the pipe joint unit 210.
[0060] The heat exchanger 200 adopts the heat exchanger core 100 described above, so that the flow path of the fluid can be prolonged without changing the structure size, thereby improving the heat exchange efficiency. When the pipe joint unit 210 is arranged, the pipe joint unit 210 can adopt a split type pipe joint or an integrated type pipe joint for introducing the medium into the first flow channel 111 and the second flow channel 121, and the pipe joint unit 210 is in communication with the first channel 112 and the fourth channel 123 to guide the medium to the first flow channel 111 and the second flow channel 121, and discharge the medium after heat exchange.
[0061] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.
Claims
1. A heat exchanger core, characterized in that: the heat exchanger core comprises a first core plate unit and a second core plate unit stacked together; the first core plate unit is provided with at least one first flow channel perpendicular to the stacking direction of the first core plate unit and the second core plate unit, and a first passage and a second passage in communication with the first flow channel; the second core plate unit is provided with at least one second flow channel parallel to the first flow channel, and a third passage and a fourth passage in communication with the second flow channel; wherein the second passage and the third passage are at least partially aligned and communicated along the stacking direction of the first core plate unit and the second core plate unit, and the first flow channel is capable of guiding the flow of medium in a direction opposite to the flow of medium guided by the second flow channel. 2.The heat exchanger core according to claim 1, characterized in that: the first passage and the second passage are located at both ends of the first core plate unit, the third passage and the fourth passage are located at both ends of the second core plate unit, and the second passage and the third passage are coaxial. 3.The heat exchanger core according to claim 1, characterized in that: the first core plate unit comprises a plurality of first core plates stacked together, and the first flow channel is located between two adjacent first core plates; the second core plate unit comprises a plurality of second core plates stacked together, and the second flow channel is located between two adjacent second core plates. 4.The heat exchanger core according to claim 1, characterized in that: the first core plate unit comprises a plurality of first core plates stacked together, and the first flow channel is located in one of the first core plates; the second core plate unit comprises a plurality of second core plates stacked together, and the second flow channel is located in one of the second core plates. 5.The heat exchanger core according to any one of claims 1-4, characterized in that: the port of the first passage and the port of the fourth passage are both located on the side of the first core plate unit away from the second core plate unit, and the side of the first core plate unit away from the second core plate unit is further provided with a medium inlet and a medium outlet, the medium inlet and the medium outlet are respectively for another medium to exchange heat with the medium in the first flow channel and the second flow channel. 6.The heat exchanger core according to claim 5, characterized in that: the first core plate unit is further provided with a flow guide passage in communication with the fourth passage, and at least part of the flow guide passage and the fourth passage are aligned along the stacking direction of the first core plate unit and the second core plate unit, and the fourth passage is not in communication with the first flow channel. 7.The heat exchanger core according to claim 6, characterized in that: the flow guide passage and the first passage are located at the same end of the first core plate unit. 8.The heat exchanger core according to any one of claims 1-4, characterized in that: the port of the first passage is located on the side of the first core plate unit away from the second core plate unit, and the port of the fourth passage is located on the side of the second core plate unit away from the first core plate unit. 9. The heat exchanger core according to claim 8, characterized in that: the heat exchanger core further comprises a third core plate unit, the third core plate unit is located on the side of the second core plate unit away from the first core plate unit; at least one third flow channel is arranged in the third core plate unit, and a fifth passage and a sixth passage are in communication with the third flow channel; wherein the fifth passage is in communication with the fourth passage, and the third flow channel guides the medium flow in a direction opposite to the direction in which the second flow channel guides the medium flow.
10. A heat exchanger, characterized in that: the heat exchanger comprises a pipe joint unit and the heat exchanger core according to any one of claims 1-9; wherein the pipe joint unit is connected with the heat exchanger core, and the first passage and the fourth passage are in communication with the external medium flow pipeline through the pipe joint unit.