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Vehicle-mounted overhead air conditioner, cooling method of electric control cavity of vehicle-mounted overhead air conditioner and vehicle

A technology for air conditioners and electric control chambers, which is applied to vehicle components, air handling equipment, heating/cooling equipment, etc., and can solve problems such as large temperature differences in electric control chambers, the impact on the comfort of buses, and the inability to open holes to connect pipes, etc.

Pending Publication Date: 2019-03-15
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The electronic control cavity of the car air conditioner is concentrated in various heating elements such as inverters and DC-DC converters. The heating elements cannot withstand high temperatures. In high temperature environments, the heating elements are easy to burn out.
In addition, the temperature of the electronic control chamber is as high as 50-60°C when it is exposed to the sun outside. It is difficult for the module to dissipate heat during cooling operation, which often leads to module protection and affects the cooling effect.
At present, the general method to solve this problem is to directly discharge the heat of the electronic control chamber into the air, that is, open several ventilation holes on both sides of the electric control chamber, and use fans to enhance the convective heat exchange with the outside air to achieve the purpose of heat dissipation. However, in the hot summer, the temperature of the outside air is still high, the cooling effect is limited, and the electronic control chamber communicates with the outside air. In relatively humid weather or in a hazy weather environment, it is easy to introduce stagnant water or dust. Seriously affect the safe use of electricity
Another solution is to introduce low-temperature gas in the low-temperature chamber to cool down. Although the cold air enters the electric control chamber to cool down faster, it will cause the temperature difference in the electric control chamber to increase instantaneously, and condensation will easily occur in the electric control chamber, causing quality problems. ; At the same time, the loss of cooling capacity is more, which will affect the comfort of the bus
[0003] In addition, the existing bus air conditioners introduce fresh air into the car through a fixed air outlet. Due to the limitation of the space layout, customers need to add air valves to introduce outdoor air when they need the fresh air function. roof opening connection pipe

Method used

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  • Vehicle-mounted overhead air conditioner, cooling method of electric control cavity of vehicle-mounted overhead air conditioner and vehicle
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  • Vehicle-mounted overhead air conditioner, cooling method of electric control cavity of vehicle-mounted overhead air conditioner and vehicle

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Experimental program
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Embodiment 1

[0038] Such as Figure 1-3 As shown, the embodiment of the present application provides a vehicle mounted air conditioner. The vehicle mounted roof air conditioner of the present application is used to be installed on the roof of the vehicle, and the vehicle especially refers to the roof of the vehicle. The vehicle-mounted air conditioner is used to reduce the temperature inside the vehicle to ensure a suitable temperature inside the vehicle and improve the comfort during use. Certainly, the vehicle-mounted overhead air conditioner of the present application can be specifically applied to the tops of passenger cars, caravans, buses and train compartments.

[0039] Such as Figure 1-3 As shown, the vehicle-mounted overhead air conditioner includes a chassis 1 and a housing (not shown in the figure), and an indoor heat exchange chamber 2 , an electric control chamber 3 and an outdoor heat exchange chamber 4 are formed in the chassis 1 and the housing. Wherein, the indoor heat...

Embodiment 2

[0051] This embodiment provides a cooling method for the electric control cavity of a vehicle mounted overhead air conditioner, which is used to cool down the electrical components in the electronic control cavity inside the vehicle mounted overhead air conditioner of Embodiment 1. The specific method is as follows: : Connect the air in the room; send the indoor air into the electric control chamber where the electrical components are installed, and discharge the air after cooling the electric control chamber to the outside. For a specific implementation structure, refer to Embodiment 1. Specifically, the said incoming indoor air is incoming indoor return air, so as to facilitate the introduction of room-temperature air indoors.

[0052] Since the above-mentioned cooling method needs to be completed by relying on the vehicle-mounted overhead air conditioner disclosed in Embodiment 1, the cooling method of the electronic control chamber of the vehicle-mounted overhead air condi...

Embodiment 3

[0054] In addition, the present application also discloses a vehicle, including a vehicle body and the vehicle-mounted overhead air conditioner in Embodiment 1 above. The vehicle mounted overhead air conditioner is installed on the top of the vehicle body. The vehicle of the present application realizes the adjustment of the internal temperature through the vehicle-mounted air conditioner to meet the use requirements. Since the vehicle-mounted air conditioner is the vehicle-mounted air conditioner disclosed in Embodiment 1, the vehicle having the vehicle-mounted air conditioner also has all the technical effects of Embodiment 1, and details will not be repeated here. The vehicle according to the above-mentioned embodiments may also include other necessary components or structures, and the corresponding arrangement position and connection relationship can refer to the vehicle structure in the prior art. It is known to those of ordinary skill in the art and will not be describe...

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PUM

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Abstract

The invention relates to the field of air conditioners, in particular to a vehicle-mounted overhead air conditioner, a cooling method of an electric control cavity of the vehicle-mounted overhead airconditioner and a vehicle. The vehicle-mounted overhead air conditioner comprises a base plate and a shell, wherein an indoor heat exchange cavity, an electric control cavity and an outdoor heat exchange cavity are formed in the base plate and the shell; the vehicle-mounted overhead air conditioner also comprises a heat dissipation fan and a heat dissipation channel arranged in the base plate; theelectric control cavity is respectively communicated with indoor and outdoor through the heat dissipation channel; and the heat dissipation fan is used for guiding the indoor air to enter the electric control cavity through the heat dissipation channel. The indoor normal temperature air is introduced into the electric control cavity by independently arranging the heat dissipation channel and additionally arranging the heat dissipation fan on the base plate of the air conditioner, so that the purpose of cooling heating elements in the electric control cavity is achieved, the in-vehicle normaltemperature air is introduced, the problem that cold air enters the electric control cavity and is easy to condense can be avoided; and after the air in the vehicle enters the electric control cavity,negative pressure is formed in the vehicle, and the air outside the vehicle enters the vehicle through gaps of the vehicle body, so that the purpose of automatically introducing fresh air is achieved.

Description

technical field [0001] The present application relates to the field of air conditioning, and in particular, relates to a vehicle-mounted overhead air conditioner, a method for cooling an electric control chamber of the vehicle-mounted roof-mounted air conditioner, and a vehicle installed with the vehicle-mounted roof-mounted air conditioner. Background technique [0002] The electronic control cavity of the vehicle air conditioner is concentrated in various heating elements such as inverters and DC-DC converters. The heating elements cannot withstand high temperatures. In high temperature environments, the heating elements are easy to burn out. In addition, the temperature of the electronic control chamber is as high as 50-60°C when it is exposed to the sun outside. It is difficult for the module to dissipate heat during cooling operation, resulting in frequent module protection and affecting the cooling effect. At present, the general method to solve this problem is to dire...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60H1/00
CPCB60H1/00507B60H1/00514B60H2001/00614
Inventor 李建涛沈军毛飞田秀益
Owner GREE ELECTRIC APPLIANCES INC