Integrated heat dissipation electric loader chassis and electric loader

By integrating the heat dissipation unit with the unified heat dissipation design of the hydraulic motor and the travel motor, the problem of difficult pipeline layout caused by the independent heat dissipation unit in the electric loader is solved, and a simple and low-cost whole machine heat dissipation solution is achieved.

CN224224896UActive Publication Date: 2026-05-12XCMG CONSTRUCTION MACHINERY CO LTD SCIENCE & TECHNOLOGY BRANCH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XCMG CONSTRUCTION MACHINERY CO LTD SCIENCE & TECHNOLOGY BRANCH
Filing Date
2025-05-13
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

The independent design of the heat dissipation unit in existing electric loaders makes it difficult to arrange the piping of the whole machine, resulting in a complex structure and increasing the difficulty and cost of assembly and maintenance.

Method used

An integrated heat dissipation unit is connected to the hydraulic motor and the walking motor, and heat dissipation is carried out uniformly through cooling pipes, which simplifies the overall structure and optimizes the pipe layout.

Benefits of technology

The simplified overall structure reduces assembly and maintenance difficulty, lowers production and maintenance costs, and improves the flexibility and efficiency of equipment layout.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an integrated heat dissipation electric loader chassis and an electric loader, and the integrated heat dissipation electric loader chassis comprises a frame system; the hydraulic motor is mounted above the middle part of the frame system; the walking motor is mounted below the middle part of the frame system; the integrated heat dissipation unit is mounted at a set position of the frame system; the integrated heat dissipation unit is connected with the hydraulic motor and the walking motor through a cooling pipeline. The heat dissipation mode of the whole machine is optimized, the whole machine is simple in structure, pipeline arrangement is convenient, and the assembly and maintenance difficulty and the production and maintenance cost are reduced.
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Description

Technical Field

[0001] This utility model belongs to the field of electric loader technology, specifically relating to an integrated heat dissipation electric loader chassis and an electric loader. Background Technology

[0002] Electric loaders have garnered widespread attention in the loader industry due to their pollution-free and high-efficiency characteristics. Currently, most electric loaders employ independent cooling systems for their heat-generating components, consisting of water pumps, heat sinks, and air conditioning condensers. This independent cooling approach for each component leads to difficulties in piping layout, complex structures, and increases the difficulty of assembly and maintenance, as well as production and maintenance costs. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an integrated heat dissipation electric loader chassis and electric loader, which optimizes the overall heat dissipation method, simplifies the overall structure, facilitates pipeline layout, and reduces assembly and maintenance difficulty as well as production and maintenance costs.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] In a first aspect, an integrated heat dissipation electric loader chassis is provided, comprising: a frame system; a hydraulic motor mounted on the upper middle part of the frame system; a travel motor mounted on the lower middle part of the frame system; and an integrated heat dissipation unit mounted at a set position on the frame system; wherein the integrated heat dissipation unit is connected to the hydraulic motor and the travel motor via cooling pipes.

[0006] Furthermore, it also includes a battery pack installed at the rear end of the chassis system; the battery pack is electrically connected to the hydraulic motor and the travel motor.

[0007] Furthermore, it also includes a hydraulic pump, which is connected to a hydraulic motor via a drive.

[0008] Furthermore, the first output end of the walking motor is connected to the middle drive shaft, which is connected to the front drive shaft via a support base, and the front drive shaft is connected to the front axle; the second output end of the walking motor is connected to the rear drive shaft, which is connected to the rear axle.

[0009] Furthermore, the integrated heat dissipation unit includes: a water pump for driving the coolant to circulate between the heat dissipation core and the hydraulic motor and the walking motor; and a cooling fan for assisting the heat dissipation core in heat dissipation.

[0010] Furthermore, both the hydraulic motor and the walking motor are water-cooled motors or oil-cooled motors.

[0011] Furthermore, both the hydraulic motor and the travel motor are connected to a fixed mount mounted on the vehicle frame system via shock absorbers.

[0012] In a second aspect, an electric loader is provided, characterized in that the electric loader is equipped with the integrated heat dissipation electric loader chassis described in the first aspect.

[0013] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This utility model integrates a heat dissipation unit, a hydraulic motor, and a travel motor installed at a set position in the frame system; the integrated heat dissipation unit is connected to the hydraulic motor and the travel motor through cooling pipes, which optimizes the heat dissipation method of the whole machine, simplifies the overall structure, facilitates pipe layout, and reduces the difficulty of assembly and maintenance as well as production and maintenance costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an integrated heat dissipation electric loader chassis provided in an embodiment of this utility model;

[0015] Figure 2 This is a schematic diagram of the installation structure of the transmission system in an embodiment of this utility model;

[0016] In the diagram: 1. Frame system; 2. Battery pack; 3. Integrated heat dissipation unit; 4. Drive motor; 5. Hydraulic motor; 6. Hydraulic pump; 7. Bolt; 8. Washer; 9. Shock absorber; 10. Mounting bracket; 11. Nut; 12. Front axle; 13. Front drive shaft; 14. Support bracket; 15. Center drive shaft; 16. Rear drive shaft; 17. Rear axle. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0018] Example 1

[0019] like Figure 1 , Figure 2 As shown, an integrated heat dissipation electric loader chassis includes: a frame system 1; a hydraulic motor 5 installed above the middle of the frame system 1; a travel motor 4 installed below the middle of the frame system 1; an integrated heat dissipation unit 3 installed at a set position on the frame system 1; the integrated heat dissipation unit 3 is connected to components requiring heat dissipation, such as the hydraulic motor 5 and the travel motor 4, through several cooling pipes (not shown in the figure).

[0020] The integrated heat dissipation unit 3 includes a water pump for driving the coolant to circulate between the heat dissipation core and the hydraulic motor 5 and the travel motor 4; and a cooling fan for assisting the heat dissipation core in cooling. Both the hydraulic motor 5 and the travel motor 4 are water-cooled motors, using water as the coolant. Alternatively, oil-cooled motors using oil as the coolant, or other types of motors, can be selected depending on the actual application. The integrated heat dissipation unit 3 has only external interfaces for related components, offering advantages such as simple design and convenient assembly.

[0021] The integrated heat dissipation unit 3 in this invention can meet the heat dissipation requirements of the entire vehicle's heat dissipation components, further saving layout space and optimizing the routing of heat dissipation pipes and wiring. Due to the integrated design, the specific location of the integrated heat dissipation unit 3 on the chassis system 1 can be flexibly arranged by comprehensively considering the layout of other equipment on the chassis, thus improving the flexibility of chassis equipment layout.

[0022] The frame system 1 is constructed from several welded steel components. A battery compartment is fixed at the rear of the frame system to house the battery pack 2. The battery pack 2 is electrically connected to the hydraulic motor 5 and the travel motor 4, providing power to them. The output of the hydraulic motor 5 is connected to the hydraulic pump 6, providing power to the entire hydraulic system.

[0023] Both the travel motor 4 and the hydraulic motor 5 are connected to the mounting base 10 on the frame system 1 via shock absorbers 9. The mounting base 10 is an internal component of the frame system 1, and the travel motor 4 and hydraulic motor 5 are suspended and mounted on the body of the frame system 1. The connection method between the travel motor 4 and the hydraulic motor 5 on the frame is: bolt 7, washer 8, shock absorber 9, mounting base 10, shock absorber 9, and nut 11. The shock absorber 9 further reduces the alternating torque impact and other problems that occur during motor operation, ensuring the motor's lifespan and reliability.

[0024] like Figure 2 As shown, the walking motor 4 is connected to the transmission system, specifically: the output end of the walking motor 4 is connected to the middle drive shaft 15, the middle drive shaft 15 is connected to the front drive shaft 13 through the support base 14, and the front drive shaft 13 is connected to the front axle 12; the output end of the walking motor 4 is connected to the rear drive shaft 16, and the rear drive shaft 16 is connected to the rear axle 17.

[0025] The transmission system retains the layout and structure of the existing loader to the greatest extent possible, and utilizes existing loader assembly parts to the greatest extent, thereby improving the commonality of parts. Through the modular design of the whole machine, the advantages of the existing loader platform can be taken advantage of while reducing design and production costs.

[0026] This invention integrates a heat dissipation unit to uniformly cool all the vehicle's cooling components, simplifying the equipment structure, optimizing the chassis space layout, further saving chassis space, and optimizing the routing of cooling pipes and wiring. The chassis layout is simple, facilitating installation and production, further improving the overall vehicle assembly efficiency, further refining the modular design of the electric loader, and simplifying the overall layout of the transmission system, making assembly convenient and highly integrated.

[0027] Example 2

[0028] Based on the integrated heat dissipation electric loader chassis described in Embodiment 1, this embodiment provides an electric loader, which is equipped with the integrated heat dissipation electric loader chassis described in Embodiment 1.

[0029] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An integrated heat dissipation electric loader chassis, characterized in that, include: Chassis system (1); Hydraulic motor (5) installed above the middle of the frame system (1); The travel motor (4) is installed in the lower middle part of the frame system (1); An integrated heat dissipation unit (3) is installed at a set position on the frame system (1); The integrated heat dissipation unit (3) is connected to the hydraulic motor (5) and the walking motor (4) through cooling pipes.

2. The integrated heat dissipation electric loader chassis according to claim 1, characterized in that, It also includes a battery pack (2) installed at the rear end of the frame system (1); the battery pack (2) is electrically connected to the hydraulic motor (5) and the walking motor (4).

3. The integrated heat dissipation electric loader chassis according to claim 1, characterized in that, It also includes a hydraulic pump (6), which is connected to a hydraulic motor (5) via a transmission.

4. The integrated heat dissipation electric loader chassis according to claim 1, characterized in that, The output end of the walking motor (4) is connected to the middle drive shaft (15), which is connected to the front drive shaft (13) via the support base (14). The front drive shaft (13) is connected to the front axle (12). The output end of the walking motor (4) is connected to the rear drive shaft (16), which is connected to the rear axle (17).

5. The integrated heat dissipation electric loader chassis according to claim 1, characterized in that, The integrated heat dissipation unit (3) includes: A water pump used to drive the coolant to circulate between the heat dissipation core and the hydraulic motor (5) and the walking motor (4); Cooling fans used to assist the heat sink core in dissipating heat.

6. The integrated heat dissipation electric loader chassis according to claim 1, characterized in that, The hydraulic motor (5) and the walking motor (4) are both water-cooled motors or oil-cooled motors.

7. The integrated heat dissipation electric loader chassis according to claim 1, characterized in that, The hydraulic motor (5) and the walking motor (4) are both connected to the fixed seat (10) set on the frame system (1) through the shock absorber (9).

8. An electric loader, characterized in that, The electric loader is equipped with an integrated heat dissipation electric loader chassis as described in any one of claims 1 to 7.