Mining and excavating combined air conditioning system
By designing a combined air conditioning system, multiple evaporators and compressors are used to achieve zoned air delivery of cold and hot air, solving the problem of insufficient cooling and heating in the large-volume cab of mining excavators, and improving the driver's comfort and work efficiency.
Patent Information
- Application Number
- CN202520656764.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-04-08
AI Technical Summary
As the tonnage of mining excavators increases, a single air conditioning system cannot meet the cooling and heating needs of the cab, resulting in an environment that is too cold or too hot, affecting the driver's comfort and work efficiency.
The combined air conditioning system, consisting of multiple evaporators and compressors, achieves zoned air delivery of cold and hot air through an electric fan condenser, refrigerant pipes, and hot water pipes. The air conditioning controller coordinates the operation of each part to meet the cooling and heating needs of the large-volume cab.
It improves cooling and heating efficiency, ensuring that drivers can work at a suitable temperature, thus enhancing driving comfort and efficiency.
Smart Images

Figure CN223961985U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of mining excavators, and specifically relates to a combined air conditioning system for mining excavators. Background Technology
[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.
[0003] Mining excavators refer to mining excavators, which are mainly used in various mining operations, such as open-pit coal mines and metal mines. They can excavate and load ore, as well as perform auxiliary operations such as mine road construction and site leveling, and are an indispensable key piece of equipment in mining operations.
[0004] As the tonnage of mining excavators increases, the volume of the cab also doubles, making it impossible for the original single air conditioning system to meet the cooling and heating requirements. If the cooling and heating are insufficient, the environment inside the cab will be too cold or too hot, affecting the driver's operation, resulting in low work efficiency and insufficient driving comfort. Utility Model Content
[0005] To address the aforementioned issues, this utility model provides a combined air conditioning system for mining excavators, which can meet the cooling or heating needs of a large-volume cab, ensuring that the driver can drive at a suitable temperature, improving driving comfort, and guaranteeing work efficiency.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A combined air conditioning system for mining operations includes an air inlet duct, an evaporator assembly, an electric fan condenser assembly, a refrigerant pipe, a compressor assembly, a hot water pipe, and an air conditioning controller. The evaporator assembly is located at the lower end of the air inlet duct, and a first air outlet duct, a second air outlet duct, and a third air outlet duct are located at one end of the evaporator assembly. The lower end of the evaporator assembly is connected to the compressor via a pipe, one end of the compressor assembly is connected to one end of the refrigerant pipe, and the other end of the refrigerant pipe is connected to the electric fan condenser assembly.
[0008] Furthermore, the evaporator assembly is mounted on a first support frame, and an air conditioning controller is provided on the side of the first support frame.
[0009] Furthermore, several air conditioning controllers are spaced apart, and the air conditioning controllers are electrically connected to the evaporator assembly, the electric fan condenser assembly, and the compressor assembly.
[0010] Furthermore, the evaporator assembly includes a first evaporator, a second evaporator, and a third evaporator, with the first evaporator connected to a first air outlet duct.
[0011] Furthermore, the second evaporator is connected to the second air outlet duct, and the third evaporator is connected to the third air outlet duct.
[0012] Furthermore, the first air outlet pipe is located at one end of the second air outlet pipe, and the third air outlet pipe is located at the other end of the second air outlet pipe.
[0013] Furthermore, the compressor assembly includes a first compressor, a second compressor, and a third compressor, with the first and second compressors disposed at the lower part of the second support frame and the third compressor disposed at the upper part of the second support frame.
[0014] Furthermore, the electronic fan condenser assembly includes a first electronic fan condenser, a second electronic fan condenser, and a third electronic fan condenser.
[0015] Furthermore, the first electronic fan condenser is connected to the first compressor via a refrigeration pipe, the second electronic fan condenser is connected to the second compressor via a refrigeration pipe, and the third electronic fan condenser is connected to the third compressor via a refrigeration pipe.
[0016] Furthermore, a hot water pipe is provided at one end of the evaporator assembly, and several hot water pipes are arranged at intervals.
[0017] Compared with the prior art, the advantages and positive effects of this utility model are:
[0018] This invention generates cold air through an electronic fan condenser assembly, which then enters the compressor assembly via a refrigeration pipe. After compression by the compressor assembly, the air enters the evaporator assembly via pipes, and then enters the first, second, and third air outlet pipes to blow cold air into the cab. The heat generated by the engine operation heats water, which then enters the evaporator assembly via a hot water pipe. After processing by the evaporator assembly, hot air is generated and blown into the cab through the first, second, and third air outlet pipes. Furthermore, the outlets of each air outlet are located in different positions, allowing cold air to be blown into different parts of the cab, improving the efficiency of cooling and heating, meeting the cooling or heating needs of a large cab, ensuring the driver can drive at a suitable temperature, and improving driving comfort. Attached Figure Description
[0019] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.
[0020] Figure 1 This is a structural diagram of the combined air conditioning system for mining according to this utility model;
[0021] In the diagram: 1. Main air inlet duct; 2. First air outlet duct; 3. Second air outlet duct; 4. Third air outlet duct; 5. Electric fan condenser assembly; 51. First electric fan condenser; 52. Second electric fan condenser; 53. Third electric fan condenser; 6. Refrigeration pipe; 7. Compressor assembly; 71. First compressor; 72. Second compressor; 73. Third compressor; 8. Hot water pipe; 9. Air conditioning controller; 10. Evaporator assembly; 101. First evaporator; 102. Second evaporator; 103. Third evaporator. Detailed Implementation
[0022] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.
[0023] The present invention will now be described in detail with reference to the accompanying drawings. This embodiment discloses a combined air conditioning system for mining operations, such as... Figure 1 As shown, it includes an air inlet main duct 1, an evaporator assembly 10, an electric fan condenser assembly 5, a refrigerant pipe 6, a compressor assembly 7, a hot water pipe 8, and an air conditioning controller 9; the evaporator assembly 10 is installed at the lower end of the air inlet main duct 1, and a first air outlet duct 2, a second air outlet duct 3, and a third air outlet duct 4 are installed at one end of the evaporator assembly 10; the lower end of the evaporator assembly 10 is connected to the compressor through a pipe, one end of the compressor assembly 7 is connected to one end of the refrigerant pipe 6, and the other end of the refrigerant pipe 6 is connected to the electric fan condenser assembly 5.
[0024] Cool air is generated by the electric fan condenser assembly 5, then enters the compressor assembly 7 through the refrigeration pipe 6. After being compressed by the compressor assembly 7, it enters the evaporator assembly 10 through pipes, and then enters the first air outlet duct 2, the second air outlet duct 3, and the third air outlet duct 4 through the evaporator assembly 10, blowing cool air into the cab. The heat generated by the engine operation heats the water, which then enters the evaporator assembly 10 through the hot water pipe 8. After being processed by the evaporator assembly 10, hot air is generated and blown into the cab through the first air outlet duct 2, the second air outlet duct 3, and the third air outlet duct 4. Furthermore, the outlets of each air outlet are located in different positions, which can blow cool air into different parts of the cab, improving the efficiency of cooling and heating, meeting the cooling or heating needs of the large-volume cab, ensuring that the driver can drive at a suitable temperature, and improving driving comfort.
[0025] The evaporator assembly 10 is mounted on the first support frame, and an air conditioning controller 9 is installed on the side of the first support frame. Several air conditioning controllers 9 are spaced apart, and the air conditioning controllers 9 are electrically connected to the evaporator assembly 10, the electric fan condenser assembly 5, and the compressor assembly 7.
[0026] The start and stop of the evaporator assembly 10, the electric fan condenser assembly 5, and the compressor assembly 7 are controlled by the air conditioning controller 9. The air conditioning controller 9 can be a PLC controller.
[0027] The evaporator assembly 10 includes a first evaporator 101, a second evaporator 102, and a third evaporator 103. The first evaporator 101 is connected to the first air outlet duct 2. The second evaporator 102 is connected to the second air outlet duct 3, and the third evaporator 103 is connected to the third air outlet duct 4.
[0028] An evaporator is a heat exchange device, mainly composed of a heating chamber and an evaporation chamber. In a refrigeration system, low-temperature condensed liquid exchanges heat with the outside air through the evaporator, absorbing heat through vaporization to achieve a cooling effect. By setting up multiple evaporators and arranging them rationally with a first support frame, the installation space is fully utilized, and the simultaneous operation of multiple evaporators also improves the refrigeration efficiency.
[0029] The first air outlet duct 2 is located at one end of the second air outlet duct 3, and the third air outlet duct 4 is located at the other end of the second air outlet duct 3. The outlets of each air outlet duct are located in different positions, which can blow cold air to different positions in the cab, improving the efficiency of cooling and heating. The air outlets of the air outlet ducts face the cab. When laying them out, different placement positions can be selected according to the volume of the cab, so that the cold air can be quickly blown to all positions in the cab.
[0030] The compressor assembly 7 includes a first compressor 71, a second compressor 72, and a third compressor 73. The first compressor 71 and the second compressor 72 are located at the lower part of the second support frame, and the third compressor 73 is located at the upper part of the second support frame. The electric fan condenser assembly 5 includes a first electric fan condenser 51, a second electric fan condenser 52, and a third electric fan condenser 53. The first electric fan condenser 51 is connected to the first compressor 71 via a refrigerant pipe 6, the second electric fan condenser 52 is connected to the second compressor 72 via a refrigerant pipe 6, and the third electric fan condenser 53 is connected to the third compressor 73 via a refrigerant pipe 6.
[0031] An electric fan condenser consists of an electric fan and a condenser. In a refrigeration system, the compressor discharges high-temperature, high-pressure refrigerant superheated vapor into the condenser, where heat exchange occurs through a cooling medium such as water or air. The refrigerant releases heat and then cools and condenses into a liquid. The electric fan is driven by an electric motor; its rotating blades push the surrounding airflow, creating a low-pressure zone that attracts hot air towards the fan, thus carrying away the heat dissipated by the condenser and accelerating the heat exchange process.
[0032] A hot water pipe 8 is installed at one end of the evaporator assembly 10, and several hot water pipes 8 are spaced apart. When the car engine is running, it generates a lot of heat. The coolant in the cooling system absorbs heat and its temperature rises after circulating in the engine. Then, it enters the evaporator through the hot water pipe 8, and is then processed into a gaseous state by the evaporator before entering the air outlet pipe to achieve heating.
[0033] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.
Claims
1. A combined air conditioning system for mining operations, characterized in that, It includes an air inlet duct, an evaporator assembly, an electric fan condenser assembly, a refrigerant pipe, a compressor assembly, a hot water pipe, and an air conditioning controller; the evaporator assembly is located at the lower end of the air inlet duct, and a first air outlet duct, a second air outlet duct, and a third air outlet duct are located at one end of the evaporator assembly; the lower end of the evaporator assembly is connected to the compressor via a pipe, one end of the compressor assembly is connected to one end of the refrigerant pipe, and the other end of the refrigerant pipe is connected to the electric fan condenser assembly.
2. The combined air conditioning system for mining operations as described in claim 1, characterized in that, The evaporator assembly is mounted on a first support frame, and an air conditioning controller is provided on the side of the first support frame.
3. The combined air conditioning system for mining operations as described in claim 1, characterized in that, Several air conditioning controllers are spaced apart, and each air conditioning controller is electrically connected to the evaporator assembly, the electric fan condenser assembly, and the compressor assembly.
4. The combined air conditioning system for mining operations as described in claim 1, characterized in that, The evaporator assembly includes a first evaporator, a second evaporator, and a third evaporator, wherein the first evaporator is connected to a first air outlet duct.
5. A combined air conditioning system for mining operations as described in claim 4, characterized in that, The second evaporator is connected to the second air outlet duct, and the third evaporator is connected to the third air outlet duct.
6. A combined air conditioning system for mining operations as described in claim 5, characterized in that, The first air outlet pipe is located at one end of the second air outlet pipe, and the third air outlet pipe is located at the other end of the second air outlet pipe.
7. A combined air conditioning system for mining operations as described in claim 1, characterized in that, The compressor assembly includes a first compressor, a second compressor, and a third compressor. The first and second compressors are located at the lower part of the second support frame, and the third compressor is located at the upper part of the second support frame.
8. A combined air conditioning system for mining operations as described in claim 7, characterized in that, The electric fan condenser assembly includes a first electric fan condenser, a second electric fan condenser, and a third electric fan condenser.
9. A combined air conditioning system for mining operations as described in claim 8, characterized in that, The first electronic fan condenser is connected to the first compressor via a refrigeration pipe, the second electronic fan condenser is connected to the second compressor via a refrigeration pipe, and the third electronic fan condenser is connected to the third compressor via a refrigeration pipe.
10. A combined air conditioning system for mining operations as described in claim 1, characterized in that, A hot water pipe is provided at one end of the evaporator assembly, and several hot water pipes are arranged at intervals.