Parallel hydraulic oil heat exchanger structure

Abstract

The utility model provides a parallel connection type hydraulic oil heat exchanger structure relates to heat exchange equipment technical field, including at least one mountain type connecting piece and the heat exchanger of parallel arrangement of two, the mountain type connecting piece includes the connecting beam of longitudinal arrangement, and the first side plate and the second side plate of the vertical downward extension of both sides, first side plate, connecting beam and second side plate enclose and form the first installation groove and the second installation groove of parallel arrangement in common, first installation groove and second installation groove are used respectively to accommodate installation heat exchanger, the utility model discloses realized the function of oil circuit intercommunication, mechanical fixing and hydraulic buffer, simplified parallel assembly process, saved a large amount of pipe fitting and fastener used in traditional craft, and the sealing and fastening are completed through one -off brazing, save the time and high reliability, in addition, the buffer shunt cavity formed among the mountain type connecting piece can buffer stable oil pressure and distribute delivery, improve the stability of system work, the whole structure is compact, and the installation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of heat exchange equipment technology, and in particular to a parallel hydraulic oil heat exchanger structure. Background Technology

[0002] In hydraulic systems, heat exchangers are key components ensuring stable system operation. Their main function is to effectively cool the high-temperature hydraulic oil generated after operation, maintaining oil performance and system reliability. Currently, common design and application patterns mainly revolve around individual heat exchangers, improving their performance by optimizing their internal structure or enhancing heat dissipation methods. For example, in a centrifugal fan heat exchanger disclosed in patent CN221593551U, a centrifugal fan is installed inside the housing to enhance the airflow's ability to overcome resistance, increasing the airflow and heat dissipation efficiency passing through the heat dissipation fins, thereby optimizing the performance of the individual heat exchanger structure.

[0003] While the aforementioned optimizations for individual heat exchangers can improve heat dissipation capacity to some extent, in practical applications, especially as hydraulic systems evolve towards higher power and higher loads, the increased heat generation often renders a single heat exchanger insufficient to meet continuous cooling demands due to its limited heat dissipation area and inadequate cooling capacity. Replacing a single heat exchanger with a larger one simply to meet higher cooling requirements can be constrained by factors such as installation space and cost, lacking flexibility. Therefore, a current approach involves connecting two or more heat exchangers of the same specifications in parallel to significantly increase the heat dissipation area and cooling capacity. However, this parallel connection structure is complex, and the parallel installation of oil circuits is cumbersome, thus hindering its application development.

[0004] In other words, there is still room for improvement in existing technologies. Utility Model Content

[0005] This invention overcomes the shortcomings of the prior art by providing a parallel hydraulic oil heat exchanger structure, which simplifies the parallel assembly process, has a compact structure, and is easy to install.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: A parallel hydraulic oil heat exchanger structure includes at least one U-shaped connector and two heat exchangers arranged side by side; each heat exchanger has an oil outlet and an oil return port on its side; The mountain-shaped connector includes a longitudinally arranged connecting beam, and a first side plate and a second side plate extending vertically downward on both sides; The first side plate, the connecting beam and the second side plate together enclose and form a first mounting groove and a second mounting groove arranged side by side. The first mounting groove and the second mounting groove are respectively used to accommodate and install the heat exchanger. One end of the mountain-shaped connector is provided with a connecting pipe for connecting to an external oil pipe joint or flange. The two sides of the connecting beam, corresponding to the first mounting groove and the second mounting groove, are respectively provided with inner openings that communicate with the connecting pipe; The inner wall of the connecting pipe, the connecting beam, and the inner opening combine to form a buffer diversion cavity; When the mountain-shaped connector is installed on the oil return port side of the two heat exchangers, the hydraulic return oil can enter the buffer diversion chamber through the connecting pipe, and then enter the oil return port of the two heat exchangers through the inner ports on both sides respectively. When installed on the oil outlet side, the low-temperature oil discharged from the two heat exchangers can flow into the buffer distribution chamber through the inner port and then be discharged through the connecting pipe.

[0007] Furthermore, when viewed along the axial direction of the connecting pipe, the projected edges of the inner openings on both sides coincide with or are located within the outline of the connecting pipe.

[0008] Furthermore, the connection interface formed between the mountain-shaped connector, the heat exchanger, and the joint or flange connected to the connecting pipe is sealed and mechanically fixed through a one-time brazing process.

[0009] Furthermore, the metal material is an aluminum alloy.

[0010] Furthermore, the inner surfaces of the first and second mounting grooves match the curvature of the outer surfaces of the heat exchanger where the oil outlet and return port are located, to form a close contact.

[0011] Furthermore, the parallel hydraulic oil heat exchanger structure is provided with two of the aforementioned mountain-shaped connecting parts; One of the mountain-shaped connectors connects and fixes the oil return port on the same side of the two heat exchangers, and the other mountain-shaped connector connects and fixes the oil outlet on the same side of the two heat exchangers, thereby completing the overall clamping and fixing of the two heat exchangers from both sides.

[0012] Furthermore, the cross-sectional area of ​​the connecting pipe is greater than the cross-sectional area of ​​a single inner opening.

[0013] Furthermore, the mountain-shaped connector is integrally extruded from metal material, and the cross-section of the mountain-shaped connector is mountain-shaped.

[0014] Compared with the prior art, the beneficial effects of this utility model are: This utility model uses a mountain-shaped connector to connect two heat exchangers in parallel, achieving oil circuit connection, mechanical fixation, and hydraulic buffering. This simplifies the parallel assembly process, saves a large number of pipe fittings and fasteners used in traditional processes, and completes sealing and fastening through one-time brazing, saving time and ensuring high reliability. In addition, the buffer and diversion cavity formed in the mountain-shaped connector can buffer and stabilize the return oil pressure and distribute the delivery, improving the stability of the system operation. The overall structure is compact and easy to install. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and, together with the embodiments of the present invention, are used to explain the present invention. They do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram showing the heat exchanger and the mountain-shaped connector in combination. Figure 2 This is a schematic diagram showing the heat exchanger separated from the mountain-shaped connector; Figure 3 This is a side view of the heat exchanger separated from the mountain-shaped connector; Figure 4 This is a structural diagram of the mountain-shaped connector; Figure 5 This is a cross-sectional view of the mountain-shaped connector.

[0016] In the figure: 1. Mountain-shaped connector; 101. Connecting beam; 102. First side plate; 103. Second side plate; 104. First mounting groove; 105. Second mounting groove; 106. Connecting pipe; 107. Inner port; 108. Buffer diversion chamber; 2. Heat exchanger; 201. Oil return port. Detailed Implementation

[0017] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0018] like Figures 1 to 5 As shown, this utility model claims protection for a parallel hydraulic oil heat exchanger structure, including two heat exchangers 2 arranged side by side and a mountain-shaped connector 1. The mountain-shaped connector 1 is used to connect and fix the two heat exchangers 2, and also for the transportation of hydraulic oil. Specifically, each heat exchanger 2 has an oil outlet and an oil return port 201 machined on its side. In this embodiment, the mountain-shaped connector 1 is preferably made of a metal material such as aluminum alloy and is integrally formed by extrusion process, and its cross-section is mountain-shaped.

[0019] The connector 1 mainly includes a longitudinally arranged connecting beam 101, and a first side plate 102 and a second side plate 103 extending vertically downward from both sides of the connecting beam 101. The first side plate 102, the connecting beam 101, and the second side plate 103 together form a first mounting groove 104 and a second mounting groove 105. The first mounting groove 104 and the second mounting groove 105 correspond to two heat exchangers 2 arranged side by side, and the inner surface shape of the groove wall of these two mounting grooves matches the outer surface curvature of the heat exchanger 2 where the oil port is located, so as to form a good fit during installation, which is conducive to subsequent fixing and sealing.

[0020] At one end of the connecting beam 101, a protruding connecting pipe 106 is provided for connecting to an external oil pipe joint or flange. On both sides of the bottom of the connecting beam 101, opposite the first mounting groove 104 and the second mounting groove 105, inner openings 107 are respectively provided. Both inner openings 107 are connected to the internal channels of the connecting pipe 106. Thus, the inner wall of the connecting pipe 106, the connecting beam 101, and the inner openings 107 on both sides together form a buffer distribution cavity 108. When viewed along the axial direction of the connecting pipe 106, the projected edges of the inner openings 107 on both sides coincide with or are located inside the projected edge of the connecting pipe 106, and the cross-sectional area of ​​the connecting pipe 106 is larger than the cross-sectional area of ​​a single inner opening 107, which helps to smoothly and bufferly distribute hydraulic oil.

[0021] like Figure 1 as well as Figure 2 As shown, in actual assembly, two U-shaped connectors 1 are typically used. One U-shaped connector 1 is used to connect and secure all oil return ports 201 on the same side of the two heat exchangers 2, while the other is used to connect and secure all oil outlet ports on the same side. During installation, first align the oil ports of the heat exchangers 2 with the corresponding inner ports 107, and then assemble the external joints or flanges onto the connecting pipe 106. Finally, through a one-time brazing process, all connection interfaces between the U-shaped connector 1 and the heat exchangers 2, as well as the connection surface with the external joint, are integrally welded, thereby achieving better sealing and a robust mechanical connection.

[0022] The working principle of this utility model is as follows: The U-shaped connector 1 is installed at the return port 201 and the outlet port of the heat exchanger 2. High-temperature hydraulic return oil enters the buffer distribution chamber 108 through the connecting pipe 106, where its flow rate is reduced and its pressure is buffered. It is then smoothly distributed to the inner ports 107 on both sides and enters the two heat exchangers 2 for cooling. The cooled low-temperature oil flows out from the two heat exchangers 2, merges into the buffer distribution chamber 108 through the inner ports 107 on both sides, and finally converges through the connecting pipe 106 before being discharged into the system. Furthermore, the two U-shaped connectors 1 clamp the two heat exchangers 2 from both sides, forming a compact and stable parallel system.

[0023] This utility model uses a mountain-shaped connector 1 to connect two heat exchangers 2 in parallel, achieving oil circuit connection, mechanical fixation, and hydraulic buffering functions. It simplifies the parallel assembly process, saves a lot of pipe fittings and fasteners used in traditional processes, and completes sealing and fastening through one-time brazing, saving time and ensuring high reliability. In addition, the buffer and diversion cavity formed in the mountain-shaped connector 1 can buffer and stabilize the return oil pressure and distribute the delivery, improving the stability of the system operation. The overall structure is compact and easy to install.

[0024] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A parallel hydraulic oil heat exchanger structure, characterized in that, It includes at least one mountain-shaped connector (1) and two heat exchangers (2) arranged side by side; each heat exchanger (2) is provided with an oil outlet and an oil return port (201) on its side. The mountain-shaped connector (1) includes a longitudinally arranged connecting beam (101), and a first side plate (102) and a second side plate (103) extending vertically downward on both sides. The first side plate (102), the connecting beam (101) and the second side plate (103) together enclose and form a first mounting groove (104) and a second mounting groove (105) arranged side by side. The first mounting groove (104) and the second mounting groove (105) are respectively used to accommodate the heat exchanger (2). One end of the mountain-shaped connector (1) is provided with a connecting pipe (106) for connecting to an external oil pipe joint or flange; The connecting beam (101) has an inner opening (107) on both sides corresponding to the first mounting groove (104) and the second mounting groove (105), which is connected to the connecting pipe (106). The inner wall of the connecting pipe (106), the connecting beam (101), and the inner opening (107) combine to form a buffer diversion cavity (108). When the mountain-shaped connector (1) is installed on the oil return port (201) side of the two heat exchangers (2), the hydraulic return oil can enter the buffer diversion chamber (108) through the connecting pipe (106) and then enter the oil return port (201) of the two heat exchangers (2) through the inner ports (107) on both sides respectively. When installed on the oil outlet side, the low-temperature oil discharged from the two heat exchangers (2) can flow into the buffer diversion chamber (108) through the inner port (107) and then be discharged through the connecting pipe (106).

2. The parallel hydraulic oil heat exchanger structure according to claim 1, characterized in that, Looking along the axial direction of the connecting pipe (106), the projected edges of the inner openings (107) on both sides coincide with or are located within the outline of the connecting pipe (106).

3. The parallel hydraulic oil heat exchanger structure according to claim 1, characterized in that, The connection interface formed between the mountain-shaped connector (1), the heat exchanger (2), and the joint or flange connected to the connecting pipe (106) is sealed and mechanically fixed through a one-time brazing process.

4. The parallel hydraulic oil heat exchanger structure according to claim 1, characterized in that, The inner surfaces of the first mounting groove (104) and the second mounting groove (105) match the curvature of the outer surface of the oil outlet and oil return port (201) on the heat exchanger (2) to form a close contact.

5. The parallel hydraulic oil heat exchanger structure according to claim 1, characterized in that, The parallel hydraulic oil heat exchanger structure is provided with two of the above-mentioned mountain-shaped connectors (1). One of the mountain-shaped connectors (1) connects and fixes the oil return port (201) on the same side of the two heat exchangers (2), and the other mountain-shaped connector (1) connects and fixes the oil outlet on the same side of the two heat exchangers (2), thereby completing the overall clamping and fixing of the two heat exchangers (2) from both sides.

6. The parallel hydraulic oil heat exchanger structure according to claim 1, characterized in that, The cross-sectional area of ​​the connecting pipe (106) is greater than the cross-sectional area of ​​a single inner opening (107).

7. The parallel hydraulic oil heat exchanger structure according to claim 1, characterized in that, The mountain-shaped connector (1) is integrally extruded from metal material, and the cross-section of the mountain-shaped connector (1) is mountain-shaped.

8. The parallel hydraulic oil heat exchanger structure according to claim 7, characterized in that, The metal material is an aluminum alloy.

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