Top double-bypass convex hull flow guide structure on heat exchanger
By superimposing a top plate on the top of the heat exchanger core and setting a double convex guide structure, the high pressure drop problem caused by the lack of a top bypass channel in the heat exchanger is solved, achieving the effect of reducing costs and improving heat dissipation efficiency without increasing the height.
Patent Information
- Application Number
- CN202422773328.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-11-14
AI Technical Summary
The existing heat exchanger in the automotive temperature control system lacks a top bypass channel, resulting in high pressure in the channel inside the core. The core height needs to be increased to reduce the pressure drop, but this violates the design requirements of compact space and is costly.
A top plate is superimposed on the top of the heat exchanger core, and a double convex guide structure is set on the top plate, which is respectively connected to the inlet and outlet and the coolant pipe to form an isolated guide channel, directly guiding the medium to the outlet, avoiding passing through the inside of the core, reducing the core height and pressure drop.
This reduces pressure drop and cost without increasing the core height, while improving heat dissipation uniformity and flow rate stability, meeting the compact space requirements of automotive temperature control systems.
Smart Images
Figure CN223319645U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of heat exchange devices, and in particular relates to a top double-bypass convex hull flow guide structure on a heat exchanger. Background Art
[0002] Heat exchangers are widely used in automotive temperature control systems, using heat exchange fins to exchange heat with the flowing medium. The structure of a heat exchanger primarily consists of a heat exchange shell and heat exchange fins (core) disposed within the shell. The shell is provided with an inlet connected to the inlet pipe and an outlet connected to the outlet pipe. The medium flows from the inlet pipe into the heat exchange shell, undergoes heat exchange through the heat exchange fins, and then flows out of the outlet pipe. However, the top of the heat exchanger is generally arranged in the normal core channel position, without a water-to-oil side channel for diversion. This results in high pressure within the core channel, necessitating an increase in the core height (more layers) to reduce the pressure drop on the water-to-oil side. However, the space in a car's temperature control system is relatively compact, and increasing the core height is obviously somewhat unreasonable in a compact space, making installation difficult and costly. Summary of the Invention
[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a top double-bypass convex hull flow guide structure on a heat exchanger, which ensures performance and reduces core pressure drop without increasing the core height.
[0004] The purpose of the present utility model is achieved through the following technical scheme. The top double-bypass convex hull guide structure on the heat exchanger includes a core, a top plate and a bottom plate. The top plate of the core is superimposed with a top plate, and the bottom of the top plate is fixed to the upper part of the top plate by brazing; two long strip-shaped convex hulls are stretched on the top plate and divided into a first convex hull and a second convex hull, and the two ends of the first convex hull correspond one-to-one to the inlet and outlet provided on the bottom plate, and are communicated with the two oil channels on the core; the two ends of the second convex hull are respectively provided with mounting ports, and the coolant inlet pipe and the coolant outlet pipe are respectively installed through the mounting ports, and the two mounting ports are respectively communicated with the two coolant channels on the core, and the two oil channels and the two coolant channels are isolated from each other within the core.
[0005] The beneficial effects of the present invention are as follows: compared with the prior art, a top plate is superimposed on the top chip of the core body, and two convex hulls, namely diversion channels, are stretched on the top plate, so that part of the flow medium of the two channels is directly diverted to the outlet without passing through the core body, thereby ensuring the heat dissipation required by the core body and reducing the pressure drop on the water and oil sides, reducing the core body height (reducing the number of layers), thereby meeting customer requirements while reducing product costs.
[0006] Preferably, the first bulge is a long straight strip bulge, the two first oil channel openings on the top chip corresponding to the two ends of the first bulge are circular openings, the second bulge is a long arc-shaped bulge, and the two coolant channel openings on the top chip corresponding to the mounting openings at the two ends of the second bulge are runway-shaped openings; the shape setting of the first bulge and the two oil channel openings on the top chip makes the oil flow rate more uniform, and the shape setting of the second bulge and the two coolant channel openings on the top chip makes the coolant flow rate greater, and the overall core heat dissipation effect is better.
[0007] Preferably, the liquid flow direction of the first convex bulge is opposite to the liquid flow direction of the second convex bulge; in this way, during the oil flow and coolant flow, the core body is more stable and unilateral pressure will not occur.
[0008] Preferably, the first convex bump and the second convex bump are distributed in parallel on the top plate; this makes the heat dissipation of the core more uniform.
[0009] Preferably, the inlet and outlet on the bottom plate are divided into an inlet and an outlet, both of which are circular openings, and the inlet and the outlet respectively correspond to the two second oil channel openings on the bottom chip of the core body, the two second oil channel openings are runway-shaped openings, and arc-shaped grooves are provided on both sides of the second oil channel openings, and the bottom plate and the bottom chip are fixed through the arc-shaped grooves; the shape setting of the inlet and outlet on the bottom plate and the two oil channel openings on the bottom chip makes the aperture of the coolant entering the oil channel opening larger, reducing the pressure drop; and the oil channel opening is provided with an arc-shaped groove, which facilitates the brazing fixation between the bottom plate and the bottom chip, so that the brazing position is in the arc-shaped groove, so that the brazing will not overflow outside the bottom plate.
[0010] Preferably, mounting blocks for mounting the heat exchanger are respectively provided on the front and rear sides of the base plate, wherein two mounting blocks are provided on the base plate located on the first convex side, and one mounting block is provided on the base plate located on the second convex side; since the coolant inlet pipe and the coolant outlet pipe are installed on the second convex side, the reasonable arrangement of the above-mentioned mounting blocks makes space utilization higher and installation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the three-dimensional structure of the top double-bypass convex hull flow guide structure on the heat exchanger of the utility model.
[0012] Figure 2 It is a schematic diagram of the three-dimensional structure of the top chip on the core body of the utility model.
[0013] Figure 3 It is a schematic diagram of the three-dimensional structure of the bottom chip on the core body of the utility model.
[0014] Figure 4 It is a schematic diagram of the three-dimensional structure of the bottom plate of the utility model.
[0015] The numbers in the accompanying drawings are: 1, core; 2, top plate; 3, bottom plate; 4, top chip; 5, first convex bump; 6, second convex bump; 7, coolant inlet pipe; 8, coolant outlet pipe; 11, oil channel; 12, coolant channel; 13, bottom chip; 14, second oil channel opening; 15, arc-shaped groove; 31, inlet; 32, outlet; 33, mounting block; 41, first oil channel opening; 42, coolant channel opening; 61, mounting opening. DETAILED DESCRIPTION
[0016] The following is a detailed introduction to the present invention in conjunction with the accompanying drawings: Figures 1 to 4 As shown, the utility model includes a core 1, a top plate 2 and a bottom plate 3. The top plate 2 is superimposed on the top chip 4 of the core 1, and the bottom of the top plate 2 is fixed to the upper part of the top chip 4 by brazing; two long strip-shaped convex hulls are stretched on the top plate 2 and are divided into a first convex hull 5 and a second convex hull 6, and the two ends of the first convex hull 5 correspond one-to-one to the inlet and outlet provided on the bottom plate 3, and are communicated with the two oil channels 11 on the core 1, and the two ends of the second convex hull 6 are respectively provided with mounting ports 61, through which the coolant inlet pipe 7 and the coolant outlet pipe 8 are respectively installed, and the two mounting ports 61 are respectively communicated with the two coolant channels 12 on the core 1, and the two oil channels 11 and the two coolant channels 12 are isolated from each other in the core 1.
[0017] The first bulge 5 is a long straight strip-shaped bulge, and the two first oil channel openings 41 on the top chip 4 corresponding to the two ends of the first bulge 5 are circular openings. The second bulge 6 is a long arc-shaped bulge, and the two coolant channel openings 42 on the top chip 4 corresponding to the mounting openings 61 at the two ends of the second bulge 6 are runway-shaped openings.
[0018] The liquid flow direction of the first convex bump 5 is opposite to the liquid flow direction of the second convex bump 6. The first convex bump 5 and the second convex bump 6 are distributed on the top plate 2 in parallel.
[0019] The inlet and outlet on the bottom plate 3 are divided into an inlet 31 and an outlet 32. Both the inlet 31 and the outlet 32 are circular openings. The inlet 31 and the outlet 32 correspond one-to-one to the two second oil channel openings 14 on the bottom core plate 13 of the core body 1. The two second oil channel openings 14 are runway-shaped openings, and arc-shaped grooves 15 are provided on both sides of the second oil channel openings 14. The bottom plate 3 and the bottom core plate 13 are fixed together by brazing through the arc-shaped grooves 15.
[0020] Mounting blocks 33 for mounting the heat exchanger are respectively provided on the front and rear sides of the base plate 3 , wherein two mounting blocks 33 are provided on the base plate 3 located on the first convex hump 5 side, and one mounting block 33 is provided on the base plate 3 located on the second convex hump 6 side.
[0021] The working principle of the present invention is as follows: the heat exchanger is installed in the automobile temperature control system through the mounting block 33; the inlet 31 and the outlet 32 on the bottom plate 3 are respectively connected to the oil circuit outlet and the inlet of the automobile temperature control system, and the coolant inlet pipe 7 and the coolant outlet pipe 8 are respectively connected to the coolant circuit outlet and the inlet of the automobile temperature control system; the traditional heat exchanger's internal channel structure is broken, and part of the medium is directly drained to the outlet, which achieves the goal of meeting customer requirements while reducing the product core height (number of layers) and reducing product costs (reducing the number of parts required).
[0022] The above are only specific embodiments of the present application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.
Claims
1. A top double-bypass convex hull flow guide structure on a heat exchanger, comprising a core (1), a top plate (2) and a bottom plate (3), characterized in that: A top plate (2) is superimposed on the top chip (4) of the core (1), and the bottom of the top plate (2) and the upper part of the top chip (4) are fixed by brazing; two long strip-shaped convex hulls are stretched on the top plate (2) and are divided into a first convex hull (5) and a second convex hull (6), the two ends of the first convex hull (5) respectively correspond to the inlet and outlet provided on the bottom plate (3), and are communicated with the two oil channels (11) on the core (1), and the two ends of the second convex hull (6) are respectively provided with mounting ports (61), through which a coolant inlet pipe (7) and a coolant outlet pipe (8) are respectively installed, and the two mounting ports (61) are respectively communicated with the two coolant channels (12) on the core (1), and the two oil channels (11) and the two coolant channels (12) are isolated from each other in the core (1).
2. The top double-bypass convex hull flow guide structure on the heat exchanger according to claim 1, characterized in that: The first bulge (5) is a long straight strip-shaped bulge, and the two first oil channel openings (41) on the top chip (4) corresponding to the two ends of the first bulge (5) are circular openings. The second bulge (6) is a long arc-shaped bulge, and the two coolant channel openings (42) on the top chip (4) corresponding to the mounting openings (61) at the two ends of the second bulge (6) are runway-shaped openings.
3. The top double-bypass convex hull flow guide structure on the heat exchanger according to claim 1 or 2, characterized in that: The liquid flow direction of the first convex hull (5) and the liquid flow direction of the second convex hull (6) are opposite to each other.
4. The top double-bypass convex hull flow guide structure on the heat exchanger according to claim 1 or 2, characterized in that: The first convex bump (5) and the second convex bump (6) are distributed in parallel on the top plate (2).
5. The top double-bypass convex hull flow guide structure on the heat exchanger according to claim 1, characterized in that: The inlet and outlet on the bottom plate (3) are divided into an inlet (31) and an outlet (32). Both the inlet (31) and the outlet (32) are circular openings. The inlet (31) and the outlet (32) correspond one-to-one to two second oil channel openings (14) on the bottom core plate (13) of the core body (1). The two second oil channel openings (14) are runway-shaped openings, and arc-shaped grooves (15) are provided on both sides of the second oil channel openings (14). The bottom plate (3) and the bottom core plate (13) are connected through the arc-shaped grooves (15) and fixed by brazing.
6. The top double-bypass convex hull flow guide structure on the heat exchanger according to claim 1, characterized in that: Mounting blocks (33) for mounting the heat exchanger are respectively provided on the front and rear sides of the base plate (3), wherein two mounting blocks (33) are provided on the base plate (3) located on the side of the first convex bump (5), and one mounting block (33) is provided on the base plate (3) located on the side of the second convex bump (6).