Compact electric skid loader

Abstract

The invention discloses a compact type electric skid loader which comprises a frame. The cab is mounted on the frame; the power system is arranged on the frame and is used for providing power for the whole machine; and the heat dissipation air-conditioning system is mounted on the frame and is used for dissipating heat of the power system and conditioning air of the cab at the same time. By using the compact electric skid loader provided by the invention, a driver can drive the compact electric skid loader to work in a cab provided with an air conditioner, so that the working environment of the driver is improved, and the driving and riding comfort is greatly improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of skid steer loaders, and particularly relates to a compact electric skid steer loader. BACKGROUND

[0002] The compact skid steer loader is a flexible and small multifunctional device, and has more extreme compact space size than the common skid steer loader, can be transported by the goods elevator or climbs stairs to the working interval, can be flexibly turned and operated in the extremely narrow space such as indoor, is the conventional device for indoor decoration demolition, construction waste transportation and other working conditions, and the working environment characteristics of the compact skid steer loader are high dust, high temperature and high noise. The space size of the compact skid steer loader is extremely compact, and a large power engine cannot be configured to drive the air conditioning system, and the compact space cannot realize the configuration of the air conditioning system. The closed cab without the configuration of the refrigeration air conditioner is usually overheated, and the driver is difficult to bear. Therefore, in the prior art, the compact skid steer loader usually uses an open cab, and the driver needs to wear a gas mask to work, and the working environment of the driver is extremely poor. Meanwhile, the noise of the fuel engine during indoor operation is too large, the disturbance to the people is serious, the complaint rate is high, and the engine exhaust accumulation in the indoor closed space also causes great harm to the driver. SUMMARY

[0003] To solve the problems in the prior art, the application provides a compact electric skid steer loader, the driver can drive the compact electric skid steer loader in the cab with the air conditioner, the working environment of the driver is improved, and the driving comfort is greatly improved.

[0004] To achieve the above object, the technical scheme adopted by the application is as follows: a compact electric skid steer loader, comprising: a vehicle frame; a cab installed on the vehicle frame; a power system installed on the vehicle frame and used for providing power for the whole machine; and a heat dissipation air conditioning system installed on the vehicle frame and used for dissipating heat for the power system and air conditioning for the cab.

[0005] Further, the heat dissipation air conditioning system comprises: an integrated heat radiator installed on the vehicle frame through a heat dissipation seat, the heat dissipation seat being located at the rear of the vehicle frame; an electric compressor installed on the vehicle frame through a compressor seat; and an air inlet fan installed in the air inlet hood, the air inlet hood being arranged at the front of the vehicle frame.

[0006] Furthermore, the integrated radiator includes: an air guide shroud mounted on the radiator base, the air inlet of the air guide shroud communicating with the engine compartment of the vehicle frame; a hydraulic oil cooling core disposed at the air outlet of the air guide shroud for cooling the hydraulic oil of the entire vehicle; an electric fan for exhausting hot air from the surface of the hydraulic oil cooling core outside the vehicle; a condenser mounted on the side mounting port of the air guide shroud; and an evaporator mounted on the concave seat of the air guide shroud.

[0007] Furthermore, the condenser includes: a condenser core connected to the side mounting port of the air guide shroud via a mounting base and located inside the air guide shroud; and a liquid storage tank integrated into the side of the condenser core and located outside the air guide shroud.

[0008] Furthermore, a set distance is maintained between the condenser core and the hydraulic oil cooling core.

[0009] Furthermore, the evaporator includes: an air supply vent and an air return vent connected to the driver's cab; a heating core and a cooling core disposed on the side of the air return vent; and a blower disposed on the upper part of the heating core and the cooling core and located on the side of the air supply vent.

[0010] Furthermore, the heating core includes an electric heater.

[0011] Furthermore, the refrigerant circulates through pipes between the electric compressor, the refrigeration core, and the condenser core to regulate the temperature of the cab.

[0012] Furthermore, the power system includes: a power battery mounted on the vehicle frame via a battery mount; a motor mounted on the vehicle frame and electrically connected to the power battery; and an electronic control unit electrically connected to the power battery and the motor, respectively.

[0013] Furthermore, the power battery, motor, and electronic control unit are all located in the engine compartment of the vehicle frame.

[0014] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: (1) This invention installs a cab on the frame of a compact electric skid steer loader and equips the cab and power system with a cooling air conditioning system with centralized heat dissipation function, so that the driver can work in the cab equipped with air conditioning, thereby improving the driver's working environment and greatly improving driving comfort. (2) The present invention can effectively control the temperature of important heat-generating components such as motors and electronic controls by designing the airflow field in the engine compartment with air intake at the front and exhaust at the rear of the frame, thereby improving the reliability of the whole vehicle. (3) This invention greatly reduces space occupation through integrated air conditioning design, and has a compact structure and high versatility; (4) The invention greatly reduces noise through electrification, enabling nighttime construction work near residential areas; (5) Electrified products have no engine exhaust emissions, making indoor operations safer. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall layout of a compact electric skid steer loader provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the vehicle frame structure in an embodiment of the present invention; Figure 3 This is a schematic diagram of the integrated heat sink in an embodiment of the present invention; Figure 4 This is a schematic diagram of the evaporator in an embodiment of the present invention, wherein (a) is a perspective view and (b) is a cross-sectional view; Figure 5 This is a schematic diagram of the condenser in an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the air guide shroud in an embodiment of the present invention, wherein (a) is a schematic diagram of the air inlet side and (b) is a schematic diagram of the air outlet side; Figure 7 This is a schematic diagram of the power system in an embodiment of the present invention, wherein (a) is a schematic diagram of the overall structure and (b) is a schematic diagram of the wind duct; In the diagram: 1. Frame; 11. Radiator mount; 12. Battery mount; 13. Compressor mount; 14. Air duct; 2. Cooling and air conditioning system; 21. Integrated radiator; 211. Hydraulic oil cooling core; 212. Electric fan; 213. Condenser; 2131. Liquid reservoir; 2132. Condenser core; 2133. Mounting base; 214. Air duct; 2141. Air inlet; 2142. Air outlet; 2143. Side mounting port; 2144. Concave mount; 215. Evaporator; 2151. Blower; 2152. Cooling core; 2153. Heating core; 2154. Return air vent; 2155. Air outlet; 22. Electric compressor; 23. Intake fan; 3. Power system; 31. Power battery; 32. Motor; 33. Electronic control unit. Detailed Implementation

[0016] 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.

[0017] like Figures 1-7As shown, a compact electric skid steer loader includes: a frame 1, a cab mounted on the frame 1, a power system 3 mounted on the frame 1 for providing power to the whole machine, and a cooling and air conditioning system 2 for cooling the power system 3 and simultaneously regulating the air in the cab.

[0018] The frame 1 is equipped with a heat sink 11, a battery holder 12, a compressor holder 13, and an air duct 14. The air duct 14 is located at the front of the frame 1, and the heat sink 11 is located at the rear of the frame 1.

[0019] The cooling and air conditioning system 2 includes an integrated radiator 21, an electric compressor 22, and an intake fan 23, integrating the vehicle's cooling and air conditioning systems. The electric compressor 22 is mounted on the vehicle frame 1 via a compressor mount 13. The integrated radiator 21 is mounted on the vehicle frame 1 via a radiator mount 11. The intake fan 23 is installed inside the air intake shroud 14 of the vehicle frame 1.

[0020] The integrated radiator 21 includes a hydraulic oil cooling core 211, an electric fan 212, a condenser 213, an air guide shroud 214, and an evaporator 215.

[0021] The hydraulic oil cooling core 211 is used to cool the hydraulic oil of the entire vehicle. An electric fan 212 is located on the side of the hydraulic oil cooling core 211 and is a suction-type cooling fan that draws away hot air from the surface of the hydraulic oil cooling core 211 and exhausts it outside the vehicle. The air guide shroud 214 has an irregular shape and includes an air inlet 2141, an air outlet 2142, a side mounting port 2143, and a concave seat 2144. The air guide shroud 214 is fixedly connected to the cooling seat 11 of the frame 1. The air outlet of the air guide shroud 214 is fixedly connected to the hydraulic oil cooling core 211, and the air inlet of the air guide shroud 214 communicates with the internal compartment of the frame 1.

[0022] The condenser 213 includes a liquid reservoir 2131, a condenser core 2132, and a mounting base 2133. The liquid reservoir 2131 is integrated into the side of the condenser core 2132. The condenser core 2132 is inserted into the air guide 214 through a side mounting port 2143, while the liquid reservoir 2131 protrudes from the outside of the air guide 214. The mounting base 2133 is fixedly connected to the side mounting port 2143 of the air guide 214. A certain distance is maintained between the condenser core 2132 and the hydraulic oil cooling core 211 to reduce their mutual interference.

[0023] The evaporator 215 includes a blower 2151, a cooling core 2152, a heating core 2153, a return air inlet 2154, and an air outlet 2155. The evaporator 215 is fixedly connected to the concave seat 2144 of the air guide shroud 214. The cooling core 2152 and heating core 2153 of the evaporator 215 are arranged front to back. The blower 2151 is located at the top of the cooling core 2152 and heating core 2153, drawing air from the bottom and supplying air from the top. The return air inlet 2154 is located at the front of the cooling core 2152 and heating core 2153. The return air inlet 2154 and the air outlet 2155 of the evaporator 215 communicate with the cab. Air from the cab is drawn in through the return air inlet 2154 for cooling or heating, and then discharged back into the cab by the blower for recirculation. The electric compressor 22 is mounted on the compressor mount 13 of the frame 1 and is used to provide power to the air conditioning system. The refrigerant circulates through pipes between the electric compressor 22, the cooling core 2152 and the condenser core 2132 to regulate the temperature of the cab.

[0024] The heating core 2153 includes an electric heater and can also recover heat from the hydraulic oil cooling core 211 to achieve energy saving.

[0025] The power system 3 includes a power battery 31, a motor 32, and an electronic control unit 33. The motor 32 is electrically connected to the power battery 31, and the electronic control unit 33 is electrically connected to both the power battery 31 and the motor 32.

[0026] The power battery 31, motor 32, and electronic control unit 33 are all located in the engine compartment of the frame 1. The power battery 31 is fixedly connected to the battery holder 12 of the frame 1. The motor 32 is fixedly connected to the frame 1, and the electronic control unit 33 is located on both sides inside the frame 1. During vehicle operation, the intake fan 23 of the cooling and air conditioning system 2 draws cool air from outside the vehicle into the engine compartment through the air duct 14 of the frame 1 to cool the motor 32, electronic control unit 33, and other components inside the engine compartment. At the same time, the integrated radiator 21 draws air from inside the engine compartment, and through the air inlet 2141 of the air duct 214, draws hot air from inside the engine compartment into the integrated radiator 21 and exhausts it outside the engine compartment to cool the entire vehicle.

[0027] The compact electric skid steer loader described in this invention can be equipped with air conditioning in a narrow cabin space, greatly improving the driver's comfort. It is also environmentally friendly, low-noise, has a better cabin airflow, and is safer and more reliable as a whole.

[0028] The above description is only a preferred embodiment of the present invention. 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 invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A compact electric skid steer loader, characterized in that, include: Frame (1); The cab is mounted on the frame (1); A power system (3) installed on the frame (1) to provide power to the whole machine. A cooling air conditioning system (2) is installed on the frame (1) to dissipate heat from the power system (3) and to regulate the air in the cab.

2. The compact electric skid steer loader according to claim 1, characterized in that, The heat dissipation air conditioning system (2) includes: An integrated radiator (21) is mounted on the frame (1) via a heat sink (11) located at the rear of the frame (1); An electric compressor (22) is mounted on the frame (1) via a compressor mount (13); An intake fan (23) is installed inside the air intake cover (14), which is located at the front of the frame (1).

3. The compact electric skid steer loader according to claim 2, characterized in that, The integrated heat sink (21) includes: An air guide shroud (214) is installed on the heat sink (11), and the air inlet (2141) of the air guide shroud (214) is connected to the engine compartment of the vehicle frame (1); Hydraulic oil cooling core (211) is provided at the air outlet (2142) of the air guide shroud (214) for cooling the hydraulic oil of the whole vehicle. An electric fan (212) used to expel hot air from the surface of the hydraulic oil cooling core (211) outside the vehicle. A condenser (213) is installed in the side mounting port (2143) of the air guide shroud (214). An evaporator (215) is mounted on a concave seat (2144) of the air guide shroud (214).

4. The compact electric skid steer loader according to claim 3, characterized in that, The condenser (213) includes: The condenser core (2132) is connected to the side mounting port (2143) of the air guide shroud (214) via the mounting base (2133) and is located inside the air guide shroud (214). The liquid storage tank (2131) is integrated on the side of the condenser core (2132) and located outside the air guide shroud (214).

5. The compact electric skid steer loader according to claim 4, characterized in that, The condenser core (2132) and the hydraulic oil cooling core (211) maintain a set distance.

6. The compact electric skid steer loader according to claim 4, characterized in that, The evaporator (215) includes: Air supply vent (2155) and return air vent (2154) connected to the driver's cab; Heating core (2153) and cooling core (2152) are installed on the side of the return air vent (2154). A blower (2151) is installed on the upper part of the heating core (2153) and the cooling core (2152) and located on the side of the air outlet (2155).

7. The compact electric skid steer loader according to claim 6, characterized in that, The heating core (2153) includes an electric heater.

8. The compact electric skid steer loader according to claim 6, characterized in that, The refrigerant circulates through pipes between the electric compressor (22), the refrigeration core (2152), and the condenser core (2132) to regulate the temperature of the cab.

9. The compact electric skid steer loader according to claim 1, characterized in that, The power system includes: The power battery (31) is mounted on the frame (1) via the battery holder (12). A motor (32) is mounted on the frame and electrically connected to the power battery (31). An electronic control unit (33) is electrically connected to the power battery (31) and the motor (32) respectively.

10. The compact electric skid steer loader according to claim 9, characterized in that, The power battery (31), motor (32) and electronic control unit (33) are all located in the engine compartment of the frame (1).

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