Integrated backpack type air conditioner for excavator

Abstract

The utility model provides an integrated knapsack type air conditioner for an excavator in the technical field of excavator temperature control equipment. The integrated knapsack type air conditioner comprises a knapsack type shell; the refrigeration module is arranged in the backpack type shell; the heating module is arranged in the backpack type shell; the channel switching electromagnetic valve is communicated with the refrigerating module and the heating module; the air outlet assembly is communicated with the channel switching electromagnetic valve; the fresh air machine is arranged in the backpack type shell; the control panel is arranged on the surface of the backpack type shell; the fan is arranged in the backpack type shell; a storage battery; the single-chip microcomputer is arranged in the backpack type shell and connected with the refrigeration module, the heating module, the channel switching electromagnetic valve, the fresh air ventilator, the control panel, the fan and the storage battery. The air conditioner for the excavator has the advantages that the integration level, the use safety and the operation and maintenance convenience of the air conditioner for the excavator are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of excavator temperature control equipment, in particular to an integrated backpack-type cooling and heating air conditioner for an excavator. Background Art

[0002] Because excavators operate outdoors, the cabin often experiences extreme temperatures, often hot or cold. To ensure a comfortable working environment for the driver, air conditioning is required for temperature regulation. Due to the unique operating environment and long operating hours of excavators, conventional air conditioners used in cars would not provide adequate temperature regulation if directly used in excavators due to size limitations and other factors. Therefore, a dedicated excavator-specific air conditioner is required.

[0003] However, the air conditioners traditionally used in excavators adopt a split structure, which makes the overall structure very bloated. When the air conditioner blows cold air into the cockpit, the temperature difference in the cockpit easily causes water mist to form on the cockpit glass, posing a certain safety hazard. When the air conditioner fails, it is necessary to manually connect each pipe through a pressure gauge to monitor the pressure one by one, which makes operation and maintenance inconvenient.

[0004] Therefore, how to provide an integrated backpack-type heating and cooling air conditioner for excavators to improve the integration, safety of use and convenience of operation and maintenance of the air conditioner for excavators has become a technical problem that needs to be solved urgently. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an integrated backpack-type heating and cooling air conditioner for an excavator, so as to improve the integration, safety of use and convenience of operation and maintenance of the air conditioner for the excavator.

[0006] The utility model is realized as follows: an integrated backpack-type cooling and heating air conditioner for an excavator, comprising:

[0007] a backpack-style housing;

[0008] a refrigeration module, disposed in the backpack-type housing;

[0009] a heating module, disposed in the backpack-type housing;

[0010] a channel switching solenoid valve, connected to the cooling module and the heating module;

[0011] an air outlet assembly, connected to the channel switching solenoid valve;

[0012] a fresh air blower, arranged in the backpack-type housing;

[0013] a control panel, disposed on the surface of the backpack-type housing;

[0014] a fan disposed in the backpack-type housing;

[0015] a battery;

[0016] A single chip microcomputer is arranged in the backpack-type housing and is respectively connected to the refrigeration module, the heating module, the channel switching solenoid valve, the fresh air blower, the control panel, the fan and the battery.

[0017] Furthermore, the refrigeration module includes:

[0018] A compressor is provided in the backpack housing, and a control terminal is connected to the single chip microcomputer;

[0019] a condenser, disposed in the backpack-type housing, with an input end connected to the output end of the compressor and a control end connected to the single-chip microcomputer;

[0020] a liquid storage tank, disposed in the backpack-type housing, with an input end connected to an output end of the condenser;

[0021] an evaporator, disposed in the backpack-type housing, with an input end connected to the output end of the liquid storage tank and a control end connected to the single-chip microcomputer;

[0022] a cold air outlet pipe, disposed in the backpack-type housing, with an input end connected to an output end of the evaporator;

[0023] a first blower, disposed in the cold air outlet duct, with a control end connected to the single chip microcomputer;

[0024] a low-pressure detection meter, disposed on the outer surface of the backpack-type housing, with a detection end connected to the output end of the evaporator and a control end connected to the single-chip microcomputer;

[0025] A high-voltage detection meter is arranged on the outer surface of the backpack-type housing, a detection end of which is connected to the output end of the liquid storage tank, and a control end of which is connected to the single-chip microcomputer.

[0026] Furthermore, the compressor is a variable frequency compressor.

[0027] Furthermore, the heating module includes:

[0028] a water tank disposed within the backpack-type housing;

[0029] An engine is provided in the backpack housing, a heating end is provided in the water tank, and a control end is connected to the single chip microcomputer;

[0030] A heater water valve is provided in the backpack housing, the input end of the valve is connected to the water outlet of the water tank, and the control end is connected to the single chip microcomputer;

[0031] a warm air outlet pipe, disposed in the backpack-type housing, with its input end connected to the output end of the warm air water valve;

[0032] A second blower is arranged in the warm air outlet duct, and a control end is connected to the single chip microcomputer.

[0033] Furthermore, the air outlet assembly includes:

[0034] A plurality of air outlet pipes are all connected to the channel switching solenoid valve.

[0035] Furthermore, the air outlet of the fresh air fan is connected to the air outlet component.

[0036] Furthermore, the control panel includes:

[0037] A heating and cooling switch is provided on the surface of the backpack-type housing and is connected to the single-chip microcomputer;

[0038] A fresh air switch is provided on the surface of the backpack-type housing and is connected to the single-chip microcomputer;

[0039] A gear adjustment knob is provided on the surface of the backpack-type housing and is connected to the single-chip microcomputer;

[0040] A temperature adjustment knob is arranged on the surface of the backpack-type housing and is connected to the single-chip microcomputer.

[0041] The advantages of the present invention are:

[0042] By arranging components such as a refrigeration module, a heating module and a fresh air fan in a backpack-type shell, an integrated structure is adopted. During installation, it is only necessary to lock the backpack-type air conditioner as a whole to the outside of the excavator; by arranging an air outlet assembly including several air outlet pipes connected to the channel switching solenoid valve, each air outlet pipe is set at a corresponding position as needed, so that the temperature in each corner of the cockpit is adjusted synchronously to avoid the formation of water mist on the cockpit glass; by arranging a low-pressure test gauge and a high-pressure test gauge on the outer surface of the backpack-type shell, the detection end of the low-pressure test gauge is connected to the output end of the evaporator, and the detection end of the high-pressure test gauge is connected to the output end of the liquid storage tank, the operating status of the backpack-type air conditioner can be quickly judged by the pointer readings of the low-pressure test gauge and the high-pressure test gauge, without the need to manually connect each pipe through a pressure gauge to monitor the pressure one by one as traditionally, which ultimately greatly improves the integration, safety of use and convenience of operation and maintenance of the air conditioner used for the excavator. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0044] Figure 1The utility model is a circuit principle block diagram of an integrated backpack-type cooling and heating air conditioner for an excavator.

[0045] Figure 2 The utility model is a schematic diagram of the cooling and heating principles of an integrated backpack-type cooling and heating air conditioner for an excavator.

[0046] Figure 3 The utility model is a rear view of an integrated backpack-type cooling and heating air conditioner for an excavator.

[0047] Marking Description:

[0048] 100 - An integrated backpack-type air conditioner for excavators, 1 - backpack-type housing, 2 - cooling module, 3 - heating module, 4 - channel switching solenoid valve, 5 - air outlet assembly, 6 - fresh air blower, 7 - control panel, 8 - fan, 9 - battery, 10 - single-chip microcomputer, 21 - compressor, 22 - condenser, 23 - liquid storage tank, 24 - evaporator, 25 - cold air outlet duct, 26 - first blower, 27 - low pressure test gauge, 28 - high pressure test gauge, 31 - water tank, 32 - engine, 33 - warm air water valve, 34 - warm air outlet duct, 35 - second blower, 71 - cooling and heating switch, 72 - fresh air switch, 73 - gear adjustment knob, 74 - temperature adjustment knob. DETAILED DESCRIPTION

[0049] The embodiment of the present utility model provides an integrated backpack-type heating and cooling air conditioner 100 for excavators, which solves the problem that the air conditioner used in the prior art for excavators adopts a split structure, resulting in a bloated overall structure; when the air conditioner blows cold air into the cockpit, water mist is easily generated on the cockpit glass due to the temperature difference in the cockpit, posing a certain safety hazard; when the air conditioner fails, it is necessary to manually connect each pipeline through a pressure gauge to monitor the pressure one by one. The technical effect of greatly improving the integration, safety of use and convenience of operation and maintenance of the air conditioner used for the excavator is achieved.

[0050] The technical solution in the embodiment of the present invention is to solve the above problems. The overall idea is as follows: a refrigeration module 2, a heating module 3 and a fresh air fan 6 and other components are set in the backpack-type shell 1 to improve the integration of the air conditioner; an air outlet assembly 5 including several air outlet pipes is set to be connected to the channel switching solenoid valve 4, and each air outlet pipe is set at a corresponding position as needed, so that the temperature in each corner of the cockpit is adjusted synchronously to avoid the formation of water mist on the glass of the cockpit, so as to improve the safety of the use of the air conditioner; a low-pressure detection meter 27 and a high-pressure detection meter 28 are set on the outer surface of the backpack-type shell 1, and the operating status of the backpack-type heating and cooling air conditioner 100 can be quickly judged by the pointer readings of the low-pressure detection meter 27 and the high-pressure detection meter 28, so as to improve the convenience of operation and maintenance of the air conditioner.

[0051] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0052] Please refer to Figures 1 to 3 As shown, a preferred embodiment of the utility model is a backpack-type cooling and heating air conditioner 100 for an excavator, comprising:

[0053] A backpack-type housing 1 for carrying the backpack-type heating and cooling air conditioner 100;

[0054] A refrigeration module 2, disposed in the backpack-type housing 1, for outputting cold air;

[0055] A heating module 3, provided in the backpack-type housing 1, for outputting warm air;

[0056] a channel switching solenoid valve 4, connected to the cooling module 2 and the heating module 3, for switching between cooling and heating;

[0057] an air outlet assembly 5, connected to the channel switching solenoid valve 4, for delivering cooling air or heating air;

[0058] a fresh air blower 6, provided in the backpack housing 1, for refreshing the air in the excavator's cabin;

[0059] A control panel 7 is provided on the surface of the backpack-type housing 1 and is used to control the backpack-type air conditioner 100;

[0060] A fan 8 is provided in the backpack housing 1 for dissipating heat from the backpack air conditioner 100;

[0061] A battery 9 for supplying power to the backpack-type air conditioner 100;

[0062] A single-chip microcomputer 10 is arranged in the backpack-type shell 1, and is respectively connected to the refrigeration module 2, heating module 3, channel switching solenoid valve 4, fresh air fan 6, control panel 7, fan 8 and battery 9, and is used to control the operation of the backpack-type cooling and heating air conditioner 100. In the specific implementation, it is only necessary to select a single-chip microcomputer that can realize this function from the existing technology, and it is not limited to any model, such as the STM32F103 series of single-chip microcomputers of ST Company, and the control program is well known to those skilled in the art, which can be obtained by those skilled in the art without any creative work.

[0063] The refrigeration module 2 includes:

[0064] A compressor 21 is provided in the backpack housing 1, with a control end connected to the single chip microcomputer 10, for compressing the refrigerant;

[0065] A condenser 22 is provided in the backpack housing 1, with its input end connected to the output end of the compressor 21 and its control end connected to the single chip microcomputer 10, for cooling the refrigerant;

[0066] A liquid storage tank 23 is provided in the backpack housing 1, with its input end connected to the output end of the condenser 22, and is used to store refrigerant;

[0067] An evaporator 24 is provided in the backpack housing 1, with its input end connected to the output end of the liquid storage tank 23 and its control end connected to the single chip microcomputer 10, for evaporating the refrigerant;

[0068] A cold air outlet pipe 25 is provided in the backpack housing 1, with its input end connected to the output end of the evaporator 24;

[0069] a first blower 26 , disposed in the cold air outlet duct 25 , with a control end connected to the single chip microcomputer 10 , for blowing out cold air;

[0070] A low-pressure detection meter 27 is provided on the outer surface of the backpack-type housing 1, with a detection end connected to the output end of the evaporator 24 and a control end connected to the single-chip microcomputer 10 for pressure detection;

[0071] A high-pressure detection meter 28 is provided on the outer surface of the backpack-type housing 1 , with a detection end connected to the output end of the liquid storage tank 23 and a control end connected to the single-chip microcomputer 10 for pressure detection.

[0072] The compressor 21 is a variable frequency compressor, which is beneficial to reducing power consumption.

[0073] The heating module 3 includes:

[0074] A water tank 31 is provided in the backpack-type housing 1;

[0075] An engine 32 is provided in the backpack housing 1, a heating end is provided in the water tank 31, and a control end is connected to the single chip microcomputer 10, for heating the water in the water tank 31;

[0076] A warm air water valve 33 is provided in the backpack housing 1, with its input end connected to the water outlet of the water tank 31 and its control end connected to the single chip microcomputer 10, for adjusting the warm air temperature;

[0077] A warm air outlet pipe 34 is provided in the backpack housing 1, and its input end is connected to the output end of the warm air water valve 33;

[0078] A second blower 35 is provided in the warm air outlet duct 34 , with a control end connected to the single chip microcomputer 10 , for blowing out warm air.

[0079] The air outlet component 5 includes:

[0080] A plurality of air outlet sub-pipes (not shown) are all connected to the channel switching electromagnetic valve 4. The defogging effect can be achieved by blowing air toward each glass through the plurality of air outlet sub-pipes.

[0081] The air outlet of the fresh air fan 6 is connected to the air outlet component 5.

[0082] The control panel 7 includes:

[0083] A cooling and heating switch 71 is provided on the surface of the backpack housing 1 and is connected to the single chip microcomputer 10 for switching between the cooling module 2 and the heating module 3 in the current working state;

[0084] A fresh air switch 72 is provided on the surface of the backpack-type housing 1 and is connected to the single-chip microcomputer 10 for starting and stopping the fresh air blower 6;

[0085] A gear adjustment knob 73 is provided on the surface of the backpack housing 1 and is connected to the single chip microcomputer 10 for adjusting the operating power of the first blower 26 or the second blower 35;

[0086] A temperature adjustment knob 74 is provided on the surface of the backpack-type housing 1 and is connected to the single-chip microcomputer 10 for adjusting the operating power of the cooling module 2 or the heating module 3 .

[0087] Working principle of this utility model:

[0088] The refrigeration module 2 is started by the heating and cooling switch 71, and the compressor 21 transports the compressed refrigerant to the condenser 22 for cooling. The cooled refrigerant is transported to the liquid storage tank 23, and then evaporated by the evaporator 24 to reduce the air temperature. The cold air is blown out through the cold air outlet pipe 25, the on-off switching solenoid valve 4 and the air outlet assembly 5 by the first blower 26 to cool the excavator's cab.

[0089] In summary, the advantages of the present invention are:

[0090] By arranging components such as a refrigeration module, a heating module and a fresh air fan in a backpack-type shell, an integrated structure is adopted. During installation, it is only necessary to lock the backpack-type air conditioner as a whole to the outside of the excavator; by arranging an air outlet assembly including several air outlet pipes connected to the channel switching solenoid valve, each air outlet pipe is set at a corresponding position as needed, so that the temperature in each corner of the cockpit is adjusted synchronously to avoid the formation of water mist on the cockpit glass; by arranging a low-pressure test gauge and a high-pressure test gauge on the outer surface of the backpack-type shell, the detection end of the low-pressure test gauge is connected to the output end of the evaporator, and the detection end of the high-pressure test gauge is connected to the output end of the liquid storage tank, the operating status of the backpack-type air conditioner can be quickly judged by the pointer readings of the low-pressure test gauge and the high-pressure test gauge, without the need to manually connect each pipe through a pressure gauge to monitor the pressure one by one as traditionally, which ultimately greatly improves the integration, safety of use and convenience of operation and maintenance of the air conditioner used for the excavator.

[0091] Although the specific implementation methods of the present invention are described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An integrated backpack-type heating and cooling air conditioner for an excavator, characterized by: include: a backpack-style housing; a refrigeration module, disposed in the backpack-type housing; a heating module, disposed in the backpack-type housing; a channel switching solenoid valve, connected to the cooling module and the heating module; an air outlet assembly, connected to the channel switching solenoid valve; a fresh air blower, arranged in the backpack-type housing; a control panel, disposed on the surface of the backpack-type housing; a fan disposed in the backpack-type housing; a battery; A single chip microcomputer is arranged in the backpack-type housing and is respectively connected to the refrigeration module, the heating module, the channel switching solenoid valve, the fresh air blower, the control panel, the fan and the battery.

2. The integrated backpack-type air conditioner for excavators as claimed in claim 1, characterized in that: The refrigeration module comprises: A compressor is provided in the backpack housing, and a control terminal is connected to the single chip microcomputer; a condenser, disposed in the backpack-type housing, with an input end connected to the output end of the compressor and a control end connected to the single-chip microcomputer; a liquid storage tank, disposed in the backpack-type housing, with an input end connected to an output end of the condenser; an evaporator, disposed in the backpack-type housing, with an input end connected to the output end of the liquid storage tank and a control end connected to the single-chip microcomputer; a cold air outlet pipe, disposed in the backpack-type housing, with an input end connected to an output end of the evaporator; a first blower, disposed in the cold air outlet duct, with a control end connected to the single chip microcomputer; a low-pressure detection meter, disposed on the outer surface of the backpack-type housing, with a detection end connected to the output end of the evaporator and a control end connected to the single-chip microcomputer; A high-voltage detection meter is arranged on the outer surface of the backpack-type housing, a detection end of which is connected to the output end of the liquid storage tank, and a control end of which is connected to the single-chip microcomputer.

3. The integrated backpack-type heating and cooling air conditioner for an excavator according to claim 2, characterized in that: The compressor is a variable frequency compressor.

4. The integrated backpack-type heating and cooling air conditioner for an excavator according to claim 1, characterized in that: The heating module comprises: a water tank disposed within the backpack-type housing; An engine is provided in the backpack housing, a heating end is provided in the water tank, and a control end is connected to the single chip microcomputer; A heater water valve is provided in the backpack housing, the input end of the valve is connected to the water outlet of the water tank, and the control end is connected to the single chip microcomputer; a warm air outlet pipe, disposed in the backpack-type housing, with its input end connected to the output end of the warm air water valve; A second blower is arranged in the warm air outlet duct, and a control end is connected to the single chip microcomputer.

5. The integrated backpack-type heating and cooling air conditioner for an excavator according to claim 1, characterized in that: The air outlet component includes: A plurality of air outlet pipes are all connected to the channel switching solenoid valve.

6. The integrated backpack-type air conditioner for excavators as claimed in claim 1, characterized in that: The air outlet of the fresh air fan is connected to the air outlet component.

7. The integrated backpack-type air conditioner for excavators as claimed in claim 1, characterized in that: The control panel includes: A heating and cooling switch is provided on the surface of the backpack-type housing and is connected to the single-chip microcomputer; A fresh air switch is provided on the surface of the backpack-type housing and is connected to the single-chip microcomputer; A gear adjustment knob is provided on the surface of the backpack-type housing and is connected to the single-chip microcomputer; A temperature adjustment knob is arranged on the surface of the backpack-type housing and is connected to the single-chip microcomputer.

Images