Electric air conditioning device for bus

A technology of electric air conditioners and air conditioners, which is applied to lighting and heating equipment, compressors, refrigeration safety arrangements, etc., can solve the problems of low efficiency, poor adjustability, and unfavorable assembly of bus air conditioners, so as to improve energy utilization and reduce weight , the effect of reducing pollution

Inactive Publication Date: 2011-06-01
李静
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the disadvantages of low efficiency, poor adjustability, heavy weight, high cost, and unfavorable assembly of existing bus air co

Method used

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  • Electric air conditioning device for bus
  • Electric air conditioning device for bus
  • Electric air conditioning device for bus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] refer to figure 1 , an electric air-conditioning device for a bus, comprising an electric compressor and at least two sets of refrigeration cycle units arranged in parallel, the refrigeration cycle unit comprising a group of condensers, a group of liquid storage tanks, a group of dry filters, A group of throttling mechanisms and a group of evaporators, the group of evaporators is connected to the electric compressor, the electric compressor is connected to the group of condensers, and a group of condensers of each refrigeration cycle unit passes through The air duct is connected to the condensing fan unit, and a group of evaporators of each refrigeration cycle unit is connected to the evaporator fan unit through the air duct. The electric compressor, condensing fan unit, evaporator fan unit and each refrigeration cycle unit are connected to The energy output mode selectively starts the controller connection of each group of refrigeration cycle units, condensing fan unit...

Embodiment 2

[0041] refer to figure 2 and image 3 , in this embodiment, the electric compressor includes at least two groups of compressor units arranged in parallel, the number of the compressor units is the same with respect to the refrigeration cycle unit, one group of compressor units and one group of refrigeration cycle units A group of evaporators and a group of condensers are connected. Other structures of this embodiment are the same as those of Embodiment 1.

[0042] In this example, if figure 2 As shown, it is a schematic diagram of the operation scheme of four sets of systems. When four compressors are used, the electric compressors (1, 2, 3, 4) independently drive the respective condensers (5, 6, 7, 8), liquid storage tanks (9, 10, 11, 12), dry filter (13, 14, 15, 16), throttling mechanism (17, 18, 19, 20) and independent evaporator (21, 22, 23, 24), constitute 4 independent refrigeration cycles unit, the condensing fan system 25 is shared by the condensers of each inde...

Embodiment 3

[0045] refer to Figure 4 , when two compressors are used, the compressors (1, 2) independently drive their respective condensers (3, 4), throttling mechanisms (5, 6) and independent evaporators (7, 8) , forming two independent refrigeration cycle units, the condensing fan system 10 is shared by the condensers of each independent system, the evaporation fan system 11 is shared by the evaporators of each independent system, and the control of the entire air conditioning system is controlled by a shared controller 12 and related elements The components are composed together to control the work of each working part of the air conditioning system. When the heat load in the car is small, one set of refrigeration system can be used to work. When the heat load in the car is large, two sets of independent systems can be used to operate. To carry out work, when one set and two sets of systems are put into work, it is equivalent to the output of the entire air conditioning system at 50%...

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PUM

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Abstract

The invention relates to an electric air conditioning device for a bus, which comprises an electric compressor and at least two groups of refrigeration circulation units which are arranged in parallel. Each refrigeration circulation unit comprises a set of condensers, a set of liquid storgye tanks, a set of drying filters, a set of throttling mechanisms and a set of evaporators, which are connected sequentially, wherein the evaporators are connected with the electric compressor; and the electric compressor is connected with the condensers. The condensers of each refrigeration circulation unit are all connected with a condensing fan unit through air ducts. The evaporators of each refrigeration circulation unit are all connected with an evaporating fan unit through air ducts. The electric compressor, the condensing fan unit, the evaporating fan unit and each refrigeration circulation unit are all connected with a controller for selectively starting each refrigeration circulation unit, the condensing fan unit and the evaporating fan unit according to an energy output mode. The electric air conditioning device can improve the efficiency, has high adjustability and light weight and is convenient to assemble.

Description

technical field [0001] The invention relates to the field of electric air conditioners, in particular to an electric air conditioner system with variable energy output of multiple systems, which can be used for air conditioners of traditional buses, hybrid buses and pure electric buses. Background technique [0002] The traditional bus air conditioner uses the vehicle engine to drive the piston reciprocating compressor to provide cooling for the vehicle. Due to the low efficiency of the reciprocating compressor, especially when the vehicle engine is running at a low speed, the operating efficiency of the compressor is lower, so As a result, the energy efficiency ratio (EER) of the entire air conditioner is low, usually below 2, the energy input and output are not worth the loss, and a lot of energy is wasted. For vehicles, a lot of fuel is wasted, which not only causes energy waste, but also causes excessive pollutant emissions. , pollute the environment. At the same time, ...

Claims

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Application Information

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IPC IPC(8): F25B1/00F25B31/00F25B49/02
Inventor 李静
Owner 李静
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