Hydraulic manifold block with built-in cooling device
By incorporating a cooling device and contact heat sinks into the hydraulic manifold, the problem of heat dissipation difficulties in hydraulic systems in heavy machinery and compact equipment is solved, achieving efficient internal cooling and ensuring stable system operation under high-temperature conditions.
Patent Information
- Application Number
- CN202520378096.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-05
AI Technical Summary
Traditional hydraulic systems are difficult to dissipate heat effectively in heavy machinery and compact equipment due to space constraints, which can lead to overheating of the hydraulic oil, affecting system performance and potentially causing equipment damage.
A cooling device is built around the return oil port of the hydraulic integrated block, and the return oil is cooled by contact heat sinks. The internal heat dissipation is achieved by setting a cooling notch and heat sink on the oil outlet side.
It enables stable operation of the hydraulic system under high load and high temperature conditions, reduces the need for external coolers, simplifies system layout, and improves thermal management efficiency.
Smart Images

Figure CN223839472U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of hydraulic mechanical component technology, specifically to the field of hydraulic integrated block with built-in cooling device. Background Technology
[0002] With the continuous development of industrial technology, the requirements for the efficiency, reliability, and environmental adaptability of hydraulic systems are increasing. In response, traditional cooling methods that rely on external coolers or large oil tanks for heat dissipation are gradually showing their limitations in heavy machinery operating environments or compact equipment fields due to their large volume.
[0003] However, if heat dissipation is not effectively achieved due to space constraints, the hydraulic oil may overheat, thereby affecting system performance or even causing equipment damage.
[0004] To address the aforementioned issues, there is a need for efficient and compact hydraulic integrated block cooling solutions. Summary of the Invention
[0005] To address the aforementioned issues, this application proposes a hydraulic integrated block with a built-in cooling device. By incorporating a cooling device around the oil return port of the hydraulic integrated block, a highly efficient and compact cooling effect is achieved.
[0006] To achieve the above objectives, the present application adopts the following technical solution:
[0007] A hydraulic integrated block with a built-in cooling device includes a block body, an oil pressure port and an oil outlet serving as the main oil circuit, and at least one oil inlet and an oil return port communicating with a control element. The oil pressure port and the oil outlet extend into the block body and are respectively provided with an oil pressure circuit and an oil outlet circuit. The oil inlet and the oil return port are respectively communicating with the oil pressure circuit and the oil outlet circuit.
[0008] The block has a cooling notch on one side of the oil outlet, and the cooling notch is equipped with contact heat sinks.
[0009] Thus, by providing a cooling notch with contact-type heat dissipation fins on the oil outlet side of the block, the return oil can be directly cooled. This allows heat to be dissipated rapidly and efficiently within the hydraulic system, reducing the need for an external cooler and simplifying the overall hydraulic system layout, thereby significantly improving the thermal management efficiency of the entire system. Furthermore, the efficient internal cooling mechanism ensures that the hydraulic system maintains stable operation even under high load and high temperature conditions.
[0010] In a preferred embodiment, the heat sink is a finned aluminum alloy heat sink.
[0011] In some possible implementations, the cooling notch is located at the lower part of the block and the oil outlet, and can adopt contact or ventilation-type heat dissipation to adapt to different working scenarios.
[0012] In some possible implementations, the number of oil outlets is two.
[0013] In a preferred embodiment, the return port is connected to two oil outlets via a Y-shaped channel.
[0014] In some possible implementations, the heat sink has a convex portion extending between the oil outlet channels.
[0015] In some possible implementations, the cooling notch has a stop step at the opposite end of the oil outlet.
[0016] In some possible implementations, the oil pressure port and the oil outlet are respectively located at opposite ends of the block. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the oil pressure port end of the hydraulic integrated block of this application;
[0018] Figure 2 This is a schematic diagram of the oil outlet end of the hydraulic integrated block of this application;
[0019] Figure 3 This is a cross-sectional view of the hydraulic integrated block of this application;
[0020] Figure 4 This is an exploded view of the heat sink of the hydraulic integrated block in this application. Detailed Implementation
[0021] The following examples further illustrate the features of this application and other related features in detail, so as to facilitate understanding by those skilled in the art:
[0022] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions in the attached diagrams, while the terms “bottom surface,” “top surface,” “inner,” and “outer” refer to the directions toward or away from the geometric center of a specific component, respectively.
[0023] Furthermore, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this case based on the specific circumstances.
[0024] The hydraulic manifold is a crucial integrated control block in the entire hydraulic system. Therefore, to improve the overall operating efficiency of the hydraulic system, it is necessary to cool the hydraulic oil. Traditionally, this is achieved through external coolers or by designing a large oil tank to dissipate heat. However, in heavy machinery operating environments or compact equipment applications, the limitations of the environment make traditional heat dissipation methods impractical. This application aims to solve this problem by proposing an implementation scheme that integrates heat sinks into the hydraulic manifold.
[0025] For detailed implementation methods, please refer to... Figures 1 to 4 The hydraulic integrated block of this application includes a block body 1, on which the mounting ports for the entire oil circuit and control components are located. The main oil circuit includes a pressure port 11, an oil outlet 12, and at least one oil inlet 13 and a return port 14 communicating with the control components. Here, control components refer to various hydraulic switches, control valves, etc., which are industry-standard technologies and will not be described in detail.
[0026] Please refer to Figure 3 , Figure 3 This is a cross-sectional view. Oil pressure passages 110 and oil outlets 12 extend from the oil pressure port 11 and oil outlet 12 into the block 1, respectively forming oil pressure passages 110 and 120. Here, oil pressure passages 110 and 120 are actually extensions of oil pressure ports 11 and 12 inside the block 1, communicating with oil inlet 13 and oil return port 14, respectively. This is done to differentiate them and facilitate description. Figure 3 The oil passage is described by oil pressure passage 110 and oil outlet passage 120 respectively.
[0027] A cooling notch 15 is provided on one side of the oil outlet 120 as described above, and the cooling notch 15 is provided with a contact-type heat sink 2. In a preferred embodiment, the heat sink 2 can be a finned aluminum alloy heat sink.
[0028] Thus, by providing a cooling notch 15 with contact heat sink 2 on one side of the oil outlet 120 of block 1, the return oil can be directly cooled. This allows heat to be dissipated quickly and efficiently within the hydraulic system, reducing the need for an external cooler and simplifying the overall layout of the hydraulic system, thereby significantly improving the thermal management efficiency of the entire system. Furthermore, the efficient internal cooling mechanism ensures that the hydraulic system can maintain stable operation even under high load and high temperature conditions.
[0029] Considering the compact installation environment of the hydraulic integrated block of this application as described above, in some embodiments, the cooling notch 15 is located at the lower part of the block body 1 and the oil outlet 120. This design allows the overall heat sink 2 to adopt contact or ventilation-type heat dissipation to adapt to different working scenarios.
[0030] Furthermore, in another embodiment, a stop step 16 can be provided at the opposite end of the cooling notch 15 to the oil outlet 12, so that an L-shaped stable structure is formed at the bottom of the block 1, which can support the hydraulic integrated block and give the heat sink 2 a larger ventilation and heat dissipation space.
[0031] As a measure to optimize heat dissipation through contact between the heat sink 2 and the oil outlet 120, there are two oil outlets 120, which divide the hydraulic oil into two paths to share the heat. Specifically, the return port 14 is connected to the two oil outlets 120 through a Y-shaped channel. Furthermore, there is a gap between the two oil outlets 120. Utilizing this space, the heat sink 2 is provided with a convex portion 21 extending into the gap between the oil outlets 120, which can increase the contact area for heat dissipation and improve heat dissipation efficiency.
[0032] Furthermore, in order to prevent interference between heat dissipation and oil pressure, the oil pressure port 11 and the oil outlet 12 are respectively located at opposite ends of the block, so that the oil inlet and outlet directions are opposite, reducing mutual interference.
[0033] As stated above, this application protects a hydraulic integrated block with a built-in cooling device, and all technical solutions that are the same as or similar to this application should be considered to fall within the protection scope of this application.
Claims
1. A hydraulic integrated block with a built-in cooling device, characterized in that, It includes a block (1), an oil pressure port (11) and an oil outlet (12) serving as the main oil circuit, and at least one oil inlet (13) and an oil return port (14) communicating with the control element. The oil pressure port (11) and the oil outlet (12) extend into the block (1) and are respectively provided with an oil pressure circuit (110) and an oil outlet circuit (120). The oil inlet (13) and the oil return port (14) are respectively connected to the oil pressure circuit (110) and the oil outlet circuit (120). The block (1) has a cooling notch (15) on one side of the oil outlet (120), and the cooling notch (15) is provided with a contact heat sink (2).
2. The hydraulic integrated block with a built-in cooling device as described in claim 1, characterized in that, The heat sink (2) is a finned aluminum alloy heat sink.
3. The hydraulic integrated block with a built-in cooling device as described in claim 1, characterized in that, The cooling notch (15) is located at the lower part of the block (1) and the oil outlet (120).
4. A hydraulic integrated block with a built-in cooling device as described in claim 3, characterized in that, The cooling notch (15) is provided with a stop step (16) at the opposite end of the oil outlet (12).
5. A hydraulic integrated block with a built-in cooling device as described in claim 1, characterized in that, The number of oil outlet channels (120) is 2.
6. A hydraulic integrated block with a built-in cooling device as described in claim 5, characterized in that, The return port (14) is connected to two oil outlets (120) via a Y-shaped channel.
7. A hydraulic integrated block with a built-in cooling device as described in claim 6, characterized in that, The heat sink (2) is provided with a convex portion (21) extending between the oil outlet passage (120).
8. A hydraulic integrated block with a built-in cooling device as described in claim 1, characterized in that, The oil pressure port (11) and the oil outlet (12) are respectively located at opposite ends of the block (1).