Heat dissipation assembly and engineering machinery

Abstract

The utility model belongs to the technical field of heat dissipation of engineering machinery, and discloses a heat dissipation assembly and the engineering machinery. The heat dissipation assembly comprises two heat dissipation devices, each heat dissipation device comprises a heat dissipation frame and a heat dissipation assembly connected with the heat dissipation frame, the two heat dissipation frames are fixedly connected with the frame and arranged at the front end of the frame, the two heat dissipation frames are distributed in a V shape, and the opening end of the V shape faces the rear portion of the frame. According to the heat dissipation assembly, the two heat dissipation frames are arranged at the front end of the frame, so that the heat dissipation device can take away heat by making full use of the windward front end of the engineering machine during walking, and the heat dissipation effect is improved; the heat dissipation assembly is arranged on the heat dissipation frame, the structure is compact, the assembling work can be simplified, and the space utilization rate of the whole vehicle is increased; in addition, the two heat dissipation frames are distributed in a V shape, and wind resistance can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation of engineering machinery, in particular to a heat dissipation assembly and engineering machinery. Background Art

[0002] Hybrid construction machinery combines the superior power of traditional fuel-powered construction machinery with the low emissions of pure electric construction machinery. This means they can operate within the fuel-efficient fuel consumption range while also addressing the limitations of battery life. However, the heat dissipation assembly for hybrid construction machinery must also balance the characteristics of both types of equipment. This includes two engine radiators, a motor radiator, two air-to-air intercoolers, a hydraulic oil radiator, and a transmission oil radiator. Existing technology employs seven radiators distributed across multiple locations on the vehicle frame, resulting in a complex distribution scheme that occupies a significant amount of space within the vehicle and provides suboptimal heat dissipation. Utility Model Content

[0003] The purpose of the utility model is to provide a heat dissipation assembly and engineering machinery, which reduce the occupied space and improve the heat dissipation efficiency.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] A heat dissipation assembly is arranged on the frame of the engineering machinery. The heat dissipation assembly includes two heat dissipation devices, each of which includes a heat dissipation frame and a heat dissipation component connected to the heat dissipation frame. Both heat dissipation frames are connected to the frame and located at the front end of the frame. The two heat dissipation frames are distributed in a V shape, with the open end of the V facing the rear of the frame.

[0006] As an optional solution, the heat dissipation assembly includes a plurality of heat dissipation modules, and the plurality of heat dissipation modules are distributed in sequence along the vertical direction.

[0007] As an optional solution, both ends of the heat dissipation module in the horizontal direction are connected to two side frames of the heat dissipation frame that are spaced apart along the horizontal direction through first shock absorbers.

[0008] As an optional solution, the heat dissipation module is provided with raised portions at both ends along the horizontal direction, and a connecting hole is provided at a position corresponding to the side frame and the heat dissipation module, and the first shock absorber includes a flexible sleeve, which is provided on the raised portion and passed through the connecting hole.

[0009] As an optional solution, the heat dissipation frame is connected to the connecting plate of the vehicle frame via a second shock absorber.

[0010] As an optional solution, the second shock absorber includes a mounting support, an upper flexible washer, a lower flexible washer, a screw and a nut, the vertical plate of the mounting support is connected to the heat dissipation frame, the nut is screwed to the screw to connect the horizontal plate of the mounting support and the connecting plate, the upper flexible washer is clamped between the horizontal plate of the mounting support and the connecting plate, and the lower flexible washer is clamped between the connecting plate and the nut.

[0011] As an optional solution, a fixed bent plate is further included, and the fixed bent plate is connected between the two heat dissipation frames.

[0012] As an optional solution, the heat dissipation device also includes an air guide cover connected to the heat dissipation frame, and the air guide cover is provided with an upper heat dissipation fan and a lower heat dissipation fan spaced apart in the vertical direction. The upper heat dissipation fan and the lower heat dissipation fan are used to dissipate heat from the heat dissipation component.

[0013] As an optional solution, a middle partition is provided in the air guide cover, and the middle partition divides the air guide cover into an upper installation cavity and a lower installation cavity. The upper cooling fan is provided in the upper installation cavity, and the lower cooling fan is provided in the lower installation cavity.

[0014] Engineering machinery includes a frame and a heat dissipation assembly according to any of the above solutions arranged at the front end of the frame.

[0015] Beneficial effects of the utility model:

[0016] The utility model provides a heat dissipation assembly. By arranging two heat dissipation frames at the front end of the vehicle frame, the heat dissipation device can fully utilize the front end of the engineering machinery to take away heat against the wind when the engineering machinery is moving, thereby improving the heat dissipation effect. The heat dissipation components are arranged on the heat dissipation frames, which has a compact structure, simplifies the assembly operation, and improves the space utilization rate of the entire vehicle. In addition, the two heat dissipation frames are distributed in a V-shape, which can effectively reduce wind resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a first structural schematic diagram of the heat dissipation assembly provided by an embodiment of the present utility model;

[0018] Figure 2 This is a second structural schematic diagram of the heat dissipation assembly provided by an embodiment of the present utility model;

[0019] Figure 3 This is a schematic structural diagram of a first heat dissipation device according to an embodiment of the present utility model;

[0020] Figure 4 This is a first structural schematic diagram of the air guide cover involved in the embodiment of the utility model;

[0021] Figure 5This is a second structural schematic diagram of the air guide cover involved in the embodiment of the present utility model;

[0022] Figure 6 It is a structural schematic diagram of the first sealing member involved in an embodiment of the present utility model.

[0023] In the picture:

[0024] 10. Heat dissipation device; 101. Heat dissipation frame; 1011. Upper frame; 1012. Lower frame; 1013. Side frame; 1013a. Connection hole; 102. Transmission oil radiator; 103. Hydraulic oil radiator; 104. First air-to-air intercooler; 105. First engine water radiator; 106. Motor water radiator; 107. Second air-to-air intercooler; 108. Second engine water radiator; 109. Raised portion; 110 , flexible sleeve; 111, second shock absorber; 1111, mounting support; 1112, upper flexible washer; 1113, lower flexible washer; 1114, screw; 1115, nut; 112, air guide cover; 1121, middle partition; 1122, upper mounting cavity; 1123, lower mounting cavity; 1124, inclined angle plate; 1125, inclined plate; 1126, wind shield; 113, upper cooling fan; 114, lower cooling fan;

[0025] 20. Fixed bent plate;

[0026] 30. Engine expansion tank;

[0027] 40. Motor expansion tank;

[0028] 50. First sealing member; 501. Connecting portion; 5011. U-shaped portion; 5012. Clamping portion; 502. Sealing portion. DETAILED DESCRIPTION

[0029] The following describes in detail embodiments of the present invention. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar components or components having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0030] In the description of this utility model, unless otherwise expressly specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed or detachable connections, mechanical or electrical connections, direct or indirect connections through an intermediate medium, and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0031] In the description of the present utility model, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0032] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0033] The present invention provides a heat dissipation assembly mounted on the frame of a hybrid construction machine for dissipating heat from an engine and motor mounted on the frame. In this embodiment, the construction machine utilizes two low-power engines instead of a single high-power engine, thereby reducing costs and facilitating procurement.

[0034] like Figures 1-6 As shown, the heat dissipation assembly includes two heat dissipation devices 10, and the heat dissipation device 10 includes a heat dissipation frame 101 and a heat dissipation component connected to the heat dissipation frame 101. The two heat dissipation frames 101 are fixedly connected to the frame and arranged at the front end of the frame, and the two heat dissipation frames 101 are distributed in a V shape, with the open end of the V facing the rear of the frame.

[0035] The heat dissipation assembly arranges two heat dissipation racks 101 at the front end of the vehicle frame, so that the heat dissipation device 10 can fully utilize the front end of the engineering machinery to carry away heat against the wind when it is moving, thereby improving the heat dissipation effect; and the heat dissipation component is arranged on the heat dissipation rack 101, which has a compact structure, simplifies the assembly operation, and improves the space utilization rate of the entire vehicle; in addition, the two heat dissipation racks 101 are distributed in a V-shape, which can effectively reduce wind resistance.

[0036] Optionally, the heat dissipation rack 101 includes an upper frame 1011, a lower frame 1012, and two side frames 1013. The upper frame 1011 and the lower frame 1012 are spaced apart in the vertical direction, and the two side frames 1013 are spaced apart in the horizontal direction. One side frame 1013 is connected to one end of the upper frame 1011 and the lower frame 1012 on the same side, and the other side frame 1013 is connected to the other end of the upper frame 1011 and the lower frame 1012 on the same side. This structure forms a square heat dissipation rack 101, which is simple in structure and easy to assemble.

[0037] Optionally, the heat dissipation assembly includes multiple heat dissipation modules, and the multiple heat dissipation modules are distributed in sequence along the vertical direction. By distributing the multiple heat dissipation modules along the vertical direction, the layout positions of the heat dissipation modules are reasonable, which is conducive to space utilization.

[0038] Specifically, refer to Figure 1 and Figure 3 As shown, the multiple heat dissipation modules in the first heat dissipation device 10 are respectively a transmission oil radiator 102, a hydraulic oil radiator 103, a first air-to-air intercooler 104 and a first engine water radiator 105 distributed in sequence from top to bottom in the vertical direction; the multiple heat dissipation modules in the second heat dissipation device 10 are respectively a motor water radiator 106, a second air-to-air intercooler 107 and a second engine water radiator 108 distributed in sequence from top to bottom in the vertical direction.

[0039] In order to prevent the heat dissipation module from being damaged by shock when the construction machinery is traveling on bumpy roads, both ends of each heat dissipation module in the horizontal direction are connected to the two side frames 1013 of the heat dissipation frame 101 through the first shock absorber. The first shock absorber can reduce the impact and increase the service life of the heat dissipation module.

[0040] Specifically, the heat dissipation module is provided with raised portions 109 at both ends along the horizontal direction, and connection holes 1013a are provided at positions corresponding to the side frames 1013 and the heat dissipation module. The first shock absorber includes a flexible sleeve 110, which is mounted on the raised portions 109 and inserted into the connection holes 1013a. By positioning the flexible sleeve 110 between the raised portions 109 and the connection holes 1013a, this structure can buffer the heat dissipation module from vibrations in multiple directions, reducing the negative effects of vibrations.

[0041] Furthermore, the flexible sleeve 110 is a stepped structure, which includes a first section and a second section connected to each other, and the outer diameter of the first section is smaller than the outer diameter of the second section. During installation, the first section of the flexible sleeve 110 is passed through the connecting hole 1013a, and the stepped surface abuts against the side frame 1013 to achieve flexible limitation of the heat dissipation module in the horizontal direction, and the structure is more reasonable.

[0042] Alternatively, as Figure 2 As shown, the heat dissipation assembly also includes a fixed bent plate 20, which is connected between the two heat dissipation frames 101, that is, the two ends of the fixed bent plate 20 can be respectively connected to the upper frame 1011 of the two heat dissipation frames 101, so as to fix the two heat dissipation frames 101 as a whole and improve the overall rigidity.

[0043] Optionally, refer to Figure 3 The heat dissipation frame 101 is connected to the connecting plate of the vehicle frame through the second shock absorber 111 to achieve shock absorption for the entire heat dissipation device 10.

[0044] In this embodiment, the two heat dissipation racks 101 are formed into a whole by fixing the bent plate 20. Therefore, the second shock absorber 111 can be respectively provided on the outermost side frame 1013 of each heat dissipation rack 101. It should be noted that if the two heat dissipation racks 101 are independent structures, the second shock absorber 111 can be provided on the side frame 1013 of each heat dissipation rack 101 or on the lower frame 1012 of each heat dissipation rack 101.

[0045] Furthermore, the second shock absorber 111 includes a mounting support 1111, an upper flexible washer 1112, a lower flexible washer 1113, a screw 1114 and a nut 1115. The vertical plate of the mounting support 1111 is connected to the side frame 1013 of the heat dissipation frame 101. The nut 1115 is screwed to the screw 1114 to connect the horizontal plate of the mounting support 1111 and the connecting plate. The upper flexible washer 1112 is clamped on the horizontal plate of the mounting support 1111. And the connecting plate, the lower flexible washer 1113 is clamped between the connecting plate and the nut 1115, that is, the screw 1114 is sequentially passed through the horizontal plate of the mounting support 1111, the upper flexible washer 1112, the connecting plate and the lower flexible washer 1113, the nut 1115 is screwed to the screw 1114 and presses the lower flexible washer 1113. In this structure, the upper flexible washer 1112 and the lower flexible washer 1113 can absorb the shock force in the vertical direction.

[0046] In order to improve the heat dissipation capacity of the heat dissipation module, such as Figure 1 Combined with Figure 4-Figure 5As shown, each heat dissipation device 10 further includes an air guide hood 112, which is connected to the heat dissipation frame 101. An upper heat dissipation fan 113 and a lower heat dissipation fan 114 are provided in the air guide hood 112 and are spaced apart in the vertical direction. The upper heat dissipation fan 113 and the lower heat dissipation fan 114 can be controlled independently. The upper heat dissipation fan 113 in the first heat dissipation device 10 is used to dissipate heat for the transmission oil radiator 102 and the hydraulic oil radiator 103. The upper heat dissipation fan 113 in the second heat dissipation device 10 is used to dissipate heat for the motor water radiator 106. The transmission oil radiator 102, the hydraulic oil radiator 103 and the motor water radiator 106 generate little heat. The upper heat dissipation fan 113 can be three triangularly distributed electronic fans with lower wind speed and smaller diameter. The lower heat dissipation fan 113 in the first heat dissipation device 10 14 is used to dissipate heat from the first engine water radiator 105 and the first air-to-air intercooler 104. The lower cooling fan 114 in the second heat sink 10 is used to dissipate heat from the second air-to-air intercooler 107 and the second engine water radiator 108. The first engine water radiator 105, the first air-to-air intercooler 104, the second engine water radiator 108, and the second air-to-air intercooler 107 generate a large amount of heat. Therefore, the lower cooling fan 114 uses a high-speed, large-diameter, electrically controlled silicone oil-clutch fan. The lower cooling fan 114 can be driven by a pulley at the front end of the engine. When the ambient temperature is low, the upper cooling fan 113 and the lower cooling fan 114 can be controlled to reduce their speed or stop, which helps save energy and reduce noise.

[0047] In this embodiment, extension plates are provided at the upper and lower ends of the air guide cover 112 in the vertical direction. The extension plates at the upper and lower ends of the air guide cover 112 are respectively connected to the upper frame 1011 and the lower frame 1012 through screws 1114.

[0048] In order to prevent the upper cooling fan 113 and the lower cooling fan 114 from affecting each other, an intermediate partition 1121 is provided in the air guide cover 112. The intermediate partition 1121 divides the air guide cover 112 into an upper mounting cavity 1122 and a lower mounting cavity 1123. The upper cooling fan 113 is provided in the upper mounting cavity 1122, and the lower cooling fan 114 is installed in the lower mounting cavity 1123. The airflow in the upper mounting cavity 1122 and the airflow in the lower mounting cavity 1123 are separated by the intermediate partition 1121 to avoid mutual interference and affect the heat dissipation effect.

[0049] Furthermore, inclined angled plates 1124 are provided at both corners of upper mounting cavity 1122 near lower mounting cavity 1123, and inclined plates 1125 are provided on both sides of the vertical direction within lower mounting cavity 1123. The provision of inclined angled plates 1124 within upper mounting cavity 1122 and inclined plates 1125 within lower mounting cavity 1123 effectively prevents localized eddy currents from occurring within upper and lower mounting cavities 1122 and 1123.

[0050] It can be understood that upper through holes are provided at the bottom of the upper mounting cavity 1122 and at positions corresponding to the three electronic fans; and lower through holes are provided at the bottom of the lower mounting cavity 1123 and at positions corresponding to the electrically controlled silicone oil clutch fan.

[0051] To protect the blades of lower cooling fan 114 from scratches, a wind shield 1126 is provided on the outer side of wind shroud 112, surrounding the lower through hole. The axis of wind shield 1126 coincides with the axis of the lower through hole. This protects the blades of lower cooling fan 114 if heat sink 10 is dropped or hoisted for maintenance. In this embodiment, wind shield 1126 and wind shroud 112 are detachably connected.

[0052] The heat dissipation assembly further includes an engine expansion tank 30 and a motor expansion tank 40. The two heat dissipation devices 10 share one engine expansion tank 30, which is used to provide coolant to the two engines. The motor expansion tank 40 is used to provide coolant to the motor.

[0053] Alternatively, as Figure 1 Combined with Figure 6 As shown, the horizontally opposite side frames 1013 of the two heat dissipation racks 101 are each provided with a first seal 50, which is in close contact with the side wall of the hood of the engineering machinery. The horizontally facing side frames 1013 of the two heat dissipation racks 101 are each provided with a second seal, which is in close contact with each other. The provision of the first seal 50 and the second seal can prevent hot air from flowing back, thereby improving heat dissipation efficiency.

[0054] Specifically, the first seal 50 and the second seal have the same structure. Taking the first seal 50 as an example, the first seal 50 includes a connecting portion 501 and a sealing portion 502 that are connected to each other. The side frame 1013 is provided with an adapter plate. The connecting portion 501 is connected to the adapter plate, and the sealing portion 502 is sealed to the side wall of the hood.

[0055] Furthermore, the connecting portion 501 includes a U-shaped portion 5011 and two clamping portions 5012 that are inclined toward the bottom of the U-shaped groove of the U-shaped portion 5011. The adapter plate is disposed within the U-shaped groove and inserted between the two clamping portions 5012. Because the clamping portions 5012 are inclined toward the bottom of the U-shaped groove, the connecting portion 501 is less likely to disengage from the adapter plate, thereby improving the connection security. The thickness of the sealing portion 502 gradually decreases from the connecting portion 501 to the sealing portion 502. This structure not only ensures the structural strength of the sealing portion 502, but also allows the sealing portion 502 to have a certain degree of flexibility when it abuts the side wall of the hood or when the two sealing portions 502 abut each other, thereby ensuring a good sealing effect.

[0056] An embodiment of the present invention further provides an engineering machine, which is a hybrid oil-electric engineering machine, including a frame and a heat dissipation assembly arranged at the front end of the frame, which reduces the space occupied by the entire vehicle and improves the heat dissipation efficiency.

[0057] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. The heat dissipation assembly is installed on the frame of the engineering machinery, and is characterized by: The heat dissipation assembly comprises two heat dissipation devices (10), wherein the heat dissipation devices (10) comprise a heat dissipation frame (101) and a heat dissipation component connected to the heat dissipation frame (101), wherein the two heat dissipation frames (101) are both connected to the vehicle frame and located at the front end of the vehicle frame, and the two heat dissipation frames (101) are distributed in a V-shape, with the open end of the V-shape facing the rear of the vehicle frame.

2. The heat dissipation assembly according to claim 1, characterized in that: The heat dissipation assembly includes a plurality of heat dissipation modules, and the plurality of heat dissipation modules are distributed in sequence along a vertical direction.

3. The heat dissipation assembly according to claim 2, characterized in that: Both ends of the heat dissipation module in the horizontal direction are connected to two side frames (1013) of the heat dissipation frame (101) spaced apart in the horizontal direction via first shock absorbers.

4. The heat dissipation assembly according to claim 3, characterized in that: The heat dissipation module is provided with raised portions (109) at both ends along the horizontal direction, the side frame (1013) is provided with connection holes (1013a) at positions corresponding to the heat dissipation module, and the first shock absorber comprises a flexible sleeve (110), the flexible sleeve (110) being sleeved on the raised portions (109) and passing through the connection holes (1013a).

5. The heat dissipation assembly according to claim 1, characterized in that: The heat dissipation frame (101) is connected to the connecting plate of the vehicle frame via a second shock absorber (111).

6. The heat dissipation assembly according to claim 5, characterized in that: The second shock absorber (111) includes a mounting support (1111), an upper flexible washer (1112), a lower flexible washer (1113), a screw (1114) and a nut (1115); the vertical plate of the mounting support (1111) is connected to the heat dissipation frame (101); the nut (1115) is screwed to the screw (1114) to connect the horizontal plate of the mounting support (1111) and the connecting plate; the upper flexible washer (1112) is clamped between the horizontal plate of the mounting support (1111) and the connecting plate; and the lower flexible washer (1113) is clamped between the connecting plate and the nut (1115).

7. The heat dissipation assembly according to claim 1, characterized in that: It also includes a fixed bent plate (20), wherein the fixed bent plate (20) is connected between the two heat dissipation frames (101).

8. The heat dissipation assembly according to claim 1, characterized in that: The heat dissipation device (10) further comprises an air guide cover (112) connected to the heat dissipation frame (101), wherein an upper heat dissipation fan (113) and a lower heat dissipation fan (114) spaced apart in a vertical direction are arranged in the air guide cover (112), and the upper heat dissipation fan (113) and the lower heat dissipation fan (114) are used to dissipate heat from the heat dissipation component.

9. The heat dissipation assembly according to claim 8, characterized in that: A middle partition (1121) is provided in the air guide cover (112), and the middle partition (1121) divides the air guide cover (112) into an upper installation cavity (1122) and a lower installation cavity (1123); the upper heat dissipation fan (113) is provided in the upper installation cavity (1122), and the lower heat dissipation fan (114) is provided in the lower installation cavity (1123).

10. Construction machinery, characterized in that The invention comprises a vehicle frame and a heat dissipation assembly according to any one of claims 1 to 9 arranged at the front end of the vehicle frame.

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