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Vehicle air conditioner

A technology for air conditioning devices and vehicles, applied in air conditioning systems, vehicle components, applications, etc., can solve the problems of increasing the number of parts and complex systems, and achieve the effect of increasing temperature and avoiding complications.

Active Publication Date: 2021-06-18
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the number of parts of the vehicle air conditioner 92 increases, and the system becomes complicated.

Method used

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Examples

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Embodiment Construction

[0034] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0035] Figure 1 ~ Figure 3 It is a configuration diagram of the vehicle air conditioner 10 according to the present embodiment. figure 1 It indicates the flow of refrigerant during dehumidification and heating operation. exist figure 1 In , thick lines and dotted lines denote refrigerant flow paths and flow paths where no refrigerant flows, respectively. figure 2 Indicates the flow of refrigerant during cooling operation. image 3 Indicates the flow of refrigerant during heating operation. In addition, the dehumidification and heating operation, the cooling operation, and the heating operation are referred to as a dehumidification and heating mode, a cooling mode, and a heating mode, respectively.

[0036] Vehicle air conditioner 10 includes an air conditioner 11 , a heat pump cycle 12 , and a control unit (not shown). The "vehicle use" in the vehicle air cond...

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PUM

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Abstract

The invention provides an air conditioner for a vehicle. This vehicle air conditioner has a refrigerant heating mechanism that circulates the refrigerant sequentially through the first heat exchanger, the second heat exchanger, the evaporator, and the compressor, and causes the refrigerant to release heat in the first heat exchanger. During the dehumidification and heating operation, when the outside air temperature is below the specified temperature, and the opening of the second expansion valve that expands the refrigerant flowing out of the second heat exchanger is larger than the opening degree of the second expansion valve that expands the refrigerant flowing out of the first heat exchanger When the opening degree of the expansion valve is 1, the refrigerant heating mechanism can heat the refrigerant. Accordingly, a wide range of temperature control can be performed with a simple system configuration.

Description

technical field [0001] The invention relates to a vehicle air conditioner. Background technique [0002] Conventionally, a vehicle air conditioner has been proposed that performs a dehumidification and heating operation using a heat pump cycle (see Patent Document 1). For example, Figure 13 The illustrated vehicle air conditioner 91 has a compressor 21 , an interior heat exchanger 22 , an expansion valve A23 , an exterior heat exchanger 24 , an expansion valve B25 , and an evaporator 26 as constituent elements. During the dehumidification and heating operation, the refrigerant (refrigerant) circulates in this order in the circuit composed of these components. The evaporator 26 and the indoor heat exchanger 22 are housed in a duct 51 , and the evaporator 26 is arranged upstream of the indoor heat exchanger 22 with respect to the flow direction of conditioned air in the duct 51 . [0003] As a method of adjusting the temperature of the conditioned air, there is known a meth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60H1/32B60H1/00B60H3/02F25B1/00F25B29/00F25B41/20F25B41/31F25B49/02
CPCB60H1/00921B60H1/3204B60H1/3216B60H1/3227B60H3/024F25B1/00F25B29/003F25B49/02B60H2001/00957B60H2001/00949B60H2001/00928F25B2600/2513F25B2600/2519F25B2700/2106F25B2313/02323F25B2313/02321F25B2313/02343F25B41/24F25B41/34F25B5/04F25B6/04F25B2400/01F25B2400/0403F25B2400/0409F25B2400/0411F25B2500/31F25B2600/0253F25B2600/2501F25B41/39Y02B30/70B60H1/00007F24F3/14F24F2003/144F25B13/00F25B39/00
Inventor 角田功
Owner HONDA MOTOR CO LTD
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