Engineering machinery heat dissipation air duct structure and engineering machinery
By designing the structure of the air inlet and air outlet hood in the construction machinery cooling system, combined with sponge or rubber pad, the problem of hot air reflow on the air outlet side of the radiator core assembly is solved, and efficient heat dissipation performance and cost reduction are achieved.
Patent Information
- Application Number
- CN202421018680.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-11
AI Technical Summary
In the existing construction machinery heat dissipation system, the hot air on the air outlet side of the radiator core assembly is prone to return to the cold air side, affecting the heat dissipation efficiency. The existing solutions are costly and have problems such as lax sealing and aging and deterioration.
Design a construction machinery radiating air duct structure, including air inlet hood and air outlet hood, the air outlet hood is fixedly connected to the air outlet side of the radiator core assembly, the air outlet end is connected to the air outlet of the hood, and the rectangular end section is used. The design of the air collecting section guides the hot air to blow directly from the hood air outlet, and combines a sponge or rubber pad to eliminate gaps to prevent the hot air from flowing back.
Effectively prevent hot air from flowing back to the cold air side, improve heat dissipation efficiency, reduce costs, avoid the problems of lax sealing and aging and deterioration, and maintain heat dissipation performance for a long time and steadily.
Smart Images
Figure CN222276785U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a heat dissipation air duct structure, and more specifically, to an engineering machinery heat dissipation air duct structure and the engineering machinery. Background Art
[0002] Construction machinery such as loaders, graders, and rollers are mostly high-energy-consuming machines. In addition to converting energy into work, their engines or electric motors discharge most of the energy in the form of heat through the cooling system.
[0003] The heat dissipation system of construction machinery includes a radiator core assembly, a cooling fan, an air inlet hood, etc. The radiator core assembly is installed in the engine compartment covered by a hood. The air inlet hood is installed on the radiator core assembly and is located on the air inlet surface. The cooling fan is located at the air inlet of the air inlet hood. The air outlet surface of the radiator core assembly faces the air outlet of the hood. The cooling fan draws air from the engine compartment through the radiator core assembly and blows it to the outside of the hood.
[0004] The outer shape of the radiator core assembly and the inner wall of the hood are not regular shapes. The radiator core assembly is installed in the hood. There is a gap between the radiator core assembly and the wall of the hood, and the air outlet surface of the radiator core assembly is at a certain distance from the air outlet on the hood. Therefore, part of the hot air coming out of the air outlet surface of the radiator core assembly will pass through the gap between the radiator core assembly and the wall of the hood and enter the engine compartment, affecting the temperature of the engine compartment, that is, affecting the temperature of the cold air side of the radiator core assembly, and ultimately affecting the heat dissipation efficiency of each radiator core.
[0005] In order to prevent the hot air from the outlet side of the radiator core assembly from entering the cold air side in the hood, the existing practice is to add return air baffles around the radiator core assembly to fill the gap to the maximum extent and prevent the hot air from flowing back. Due to the curved surface design of the hood and other reasons, the gap between the radiator core assembly and the hood is irregular, and designers need to spend a lot of time designing sponges or sheet metal baffles. Since the rubber plate needs to be fixed with sheet metal, the use of a large number of sheet metal parts will increase costs; the use of rubber will not be completely sealed, and there will be aging and deterioration problems after a long time, which increases the risk of affecting heat dissipation performance. Utility Model Content
[0006] The technical problem to be solved by the utility model is the problem of hot air return on the air outlet side of the heat exchanger core assembly of existing engineering machinery, and provides an engineering machinery heat dissipation duct structure and engineering machinery, which can effectively prevent the hot air on the air outlet side of the heat exchanger core assembly from flowing back to the cold air side for a long time.
[0007] The utility model discloses a technical solution to achieve its purpose: a heat dissipation air duct structure for engineering machinery, comprising a hood, a radiator core assembly, an air inlet hood installed on the air inlet side of the radiator core assembly, the hood is provided with an air outlet, and further comprises an air outlet hood for guiding the air outlet of the radiator core assembly, the air outlet hood is arranged on the air outlet side of the radiator core assembly, the air inlet end of the air outlet hood is fixedly connected to the radiator core assembly, and the air outlet end of the air outlet hood is connected to the air outlet on the hood.
[0008] In the heat dissipation air duct structure of the engineering machinery of the utility model, an air inlet hood cleaning port and an air inlet hood cleaning port cover plate detachably mounted and used for closing the air inlet hood cleaning port are arranged at the lowest position of the bottom surface of the air inlet hood.
[0009] In the heat dissipation air duct structure of the engineering machinery of the utility model, the bottom surface of the air outlet hood is provided with an air outlet hood cleaning port and an air outlet hood cleaning port cover plate which is detachably installed and used for closing the air outlet hood cleaning port.
[0010] In the heat dissipation air duct structure of the engineering machinery of the utility model, the air outlet cover cleaning port is arranged at the lowest position of the bottom surface of the air outlet cover.
[0011] In the heat dissipation air duct structure of the engineering machinery of the utility model, the section of the air outlet cover adjacent to the air outlet end thereof is a rectangular end section with a rectangular outline, and the rectangular end section is directly opposite to and adjacent to the air outlet of the cover.
[0012] In the heat dissipation air duct structure of engineering machinery of the utility model, the hood is provided with a sponge or rubber at the air outlet position for contacting and fitting with the left and right outer side surfaces and the upper outer side surface of the rectangular end section.
[0013] In the heat dissipation air duct structure of the engineering machinery of the utility model, the section of the air inlet cover from the air inlet end to the rectangular end section is an air collecting section with a gradually decreasing flow area.
[0014] In the heat dissipation air duct structure of the engineering machinery of the utility model, the bottom surface of the air collecting section is composed of a plurality of triangular and / or trapezoidal planes.
[0015] In the heat dissipation air duct structure of the engineering machinery of the utility model, the machine cover, the air inlet cover and the radiator core assembly are installed on the same mid-plane.
[0016] The utility model provides a technical solution for achieving the purpose: an engineering machine having the above-mentioned engineering machine heat dissipation air duct structure.
[0017] Compared with the prior art, in the utility model, the hot air coming out of the radiator core assembly is guided by the air outlet hood and blown out from the air outlet of the hood, and no return air is formed in the hood to blow toward the air inlet side of the radiator core assembly, which will not affect the temperature of the air inlet side of the radiator assembly and affect the heat dissipation performance. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is an exploded schematic diagram of the radiator core assembly and the inlet and outlet air hoods in the utility model.
[0019] Figure 2 It is a structural schematic diagram of the air outlet cover in the utility model.
[0020] Figure 3 This is a schematic diagram of the heat dissipation duct structure of the utility model engineering machinery
[0021] Parts names and serial numbers in the figure:
[0022] Radiator core assembly 1.
[0023] The air outlet hood 2, the rectangular end section 21, the air collecting section 22, the air outlet hood cleaning port 23, and the air outlet hood cleaning port cover plate 24.
[0024] Air inlet cover 3, air inlet cover cleaning port 31, air inlet cover cleaning port cover 32
[0025] The hood 4, the air outlet 41, and the rubber pad 42. DETAILED DESCRIPTION
[0026] The specific implementation scheme is described below with reference to the accompanying drawings.
[0027] like Figures 1 to 3 As shown, the heat dissipation air duct structure of the engineering machinery includes a hood 4, a radiator core assembly 1, an air inlet hood 3 installed on the air inlet side of the radiator core assembly 1, an air outlet 41 is provided on the hood 4, and also includes an air outlet hood 2 for guiding the air outlet of the radiator core assembly, the air outlet hood 2 is arranged on the air outlet side of the radiator core assembly 1, the air inlet end of the air outlet hood 2 is fixedly connected to the radiator core assembly 1, and the air outlet end of the air outlet hood 2 is connected to the air outlet 41 on the hood 4.
[0028] The cooling fan of the engineering machinery cooling system is located at the air inlet end of the air inlet hood 3. The air is blown through the air inlet hood 3 and flows through the radiator core assembly 1 and then out from the air outlet side. It is then guided by the air outlet hood 2 and blown out from the air outlet 41 of the hood 4. Since the air outlet end of the air outlet hood 2 is connected to the air outlet 41 of the hood 4, the hot air flowing out of the air outlet hood 2 will not blow into the inside of the hood 4, so it will not affect the air temperature on the air inlet side of the radiator core assembly 1, thereby not affecting the heat dissipation performance of the radiator.
[0029] The radiator core assembly 1 generally includes a plurality of radiator cores and a frame for fixing each radiator core. The radiator core includes a water radiator core, a hydraulic oil radiator core, and the like.
[0030] Optionally, an air inlet hood cleaning port 31 and an air inlet hood cleaning port cover 32 detachably mounted to close the air inlet hood cleaning port 31 are provided at the lowest position of the bottom surface of the air inlet hood 3. When cleaning the radiator core, the air inlet hood cleaning port cover 32 can be removed to expose the air inlet hood cleaning port 31, so as to facilitate cleaning of the radiator core and removal of dust.
[0031] Optionally, the bottom surface of the air hood 2 is provided with an air hood cleaning port 23 and a detachably mounted air hood cleaning port cover 24 for closing the air hood cleaning port 23. Further, the air hood cleaning port 23 is provided at the lowest position of the bottom surface of the air hood 2. When cleaning the radiator core, the air hood cleaning port cover can be removed to expose the air hood cleaning port, so as to clean the radiator core and remove dust at the air outlet side of the radiator core assembly.
[0032] Optionally, the section of the air outlet hood 2 adjacent to its air outlet end is a rectangular end section 21 with a rectangular outline, and the rectangular end section 21 is directly opposite and adjacent to the air outlet of the hood 4. Furthermore, the hood 4 is equipped with a rubber pad 42 at the position of the air outlet 41 for contacting and fitting with the left and right outer sides and the upper outer side of the rectangular end section, and the rubber pad can also be replaced with a sponge. The air outlet 41 of the hood 4 is usually rectangular, and the section of the air outlet hood 2 adjacent to its air outlet end is designed to be rectangular, which facilitates the connection between the air outlet hood 2 and the air outlet of the hood 4, and also facilitates the sponge or rubber arranged on the hood 4 to cooperate with the rectangular end section 21. The hood 4 is an openable component, while the air outlet hood 2 and the radiator core assembly 1 are fixed components, and the air outlet hood 2 cannot interfere with the hood 4 when it is opened. Therefore, there is a gap between the air outlet hood 2 and the hood 4. A sponge or rubber pad 42 is provided to contact and fit with the rectangular end section, which can eliminate or reduce the gap between the rectangular end section 21 of the air outlet hood 2 and the hood 4 to avoid hot air backflow.
[0033] Optionally, the section of the air inlet cover 2 from the air inlet end to the rectangular end section 21 is a wind collecting section 22 with a gradually decreasing flow area. Further, the bottom surface of the wind collecting section 22 is composed of a plurality of triangular and / or trapezoidal planes. The other side surfaces of the wind collecting section 22 may also be composed of one or more triangular or trapezoidal surfaces.
[0034] Optionally, the hood 4, the air inlet hood 2 and the radiator core assembly 1 are installed on the same midplane.
[0035] This embodiment also provides an engineering machine, which has the above-mentioned engineering machine heat dissipation air duct structure. The engineering machine can be a loader, a grader, a bulldozer, a road roller, etc. In this embodiment, the hot air coming out of the radiator core assembly is guided by the air outlet cover and blown out from the air outlet of the hood, and the return air will not be formed in the hood to blow toward the air inlet side of the radiator core assembly, and the temperature of the air inlet side of the radiator assembly will not be affected to affect the heat dissipation performance.
Claims
1. A heat dissipation air duct structure for engineering machinery, comprising a hood, a radiator core assembly, and an air inlet hood installed on the air inlet side of the radiator core assembly, wherein the hood is provided with an air outlet, characterized in that: It also includes an air outlet hood for guiding the air outlet of the radiator core assembly, the air outlet hood is arranged on the air outlet side of the radiator core assembly, the air inlet end of the air outlet hood is fixedly connected to the radiator core assembly, and the air outlet end of the air outlet hood is connected to the air outlet on the hood.
2. The heat dissipation duct structure of engineering machinery according to claim 1, characterized in that: An air inlet hood cleaning port and an air inlet hood cleaning port cover plate detachably mounted and used for closing the air inlet hood cleaning port are arranged at the lowest position of the bottom surface of the air inlet hood.
3. The heat dissipation duct structure of engineering machinery according to claim 1, characterized in that: The bottom surface of the air outlet hood is provided with an air outlet hood cleaning port and an air outlet hood cleaning port cover plate which is detachably installed and used for closing the air outlet hood cleaning port.
4. The cooling duct structure of engineering machinery according to claim 3, characterized in that: The air outlet hood cleaning port is arranged at the lowest position of the bottom surface of the air outlet hood.
5. The cooling duct structure for engineering machinery according to any one of claims 1 to 4, characterized in that: The section of the air outlet cover adjacent to the air outlet end thereof is a rectangular end section with a rectangular outline, and the rectangular end section is directly opposite to and adjacent to the air outlet of the cover.
6. The heat dissipation duct structure of engineering machinery according to claim 5, characterized in that: The hood is provided with a sponge or rubber at the air outlet position for contacting and fitting with the left and right outer side surfaces and the upper outer side surface of the rectangular end section.
7. The heat dissipation duct structure of engineering machinery according to claim 5, characterized in that: The section of the air inlet cover from the air inlet end to the rectangular end section is an air collection section with a gradually decreasing flow area.
8. The heat dissipation duct structure of engineering machinery according to claim 7, characterized in that: The bottom surface of the air collecting section is composed of a plurality of triangular and / or trapezoidal planes.
9. The heat dissipation duct structure of engineering machinery according to claim 5, characterized in that: The hood, air inlet hood and radiator core assembly are installed on the same midplane.
10. An engineering machine, characterized in that: An engineering machinery heat dissipation duct structure having any one of claims 1 to 9.