Air conditioner

A technology for air conditioners and compressors, applied in high-efficiency regulation technology, compressors, refrigerators, etc., can solve problems such as refrigerant liquefaction retention and oil retention, and achieve the effect of preventing oil shortage and improving comfort

Pending Publication Date: 2020-12-08
SHARP KK
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in Japanese Patent Application Laid-Open No. 2009-92337, when the heating operation is started, the liquefaction

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Air conditioner
  • Air conditioner
  • Air conditioner

Examples

Experimental program
Comparison scheme
Effect test

Example

[0039] [First Embodiment]

[0040] Hereinafter, the first embodiment of the present invention will be described in detail with reference to the accompanying drawings.figure 1 It is a schematic block diagram of the air conditioner 10 which concerns on 1st Embodiment, and shows the refrigeration cycle applied to the air conditioner 10. FIG.

[0041] The air conditioner 10 is composed of an indoor unit (indoor unit) 100 and an outdoor unit (outdoor unit) 110 . The air conditioner 10 includes an indoor heat exchanger 101 on the indoor unit 100 side, and a compressor 111 , an outdoor heat exchanger 112 , a four-way valve 113 , and an expansion valve 114 on the outdoor unit 110 side on the path of the refrigeration cycle in the air conditioner 10 . In addition, the indoor unit 100 includes an indoor fan 102 for sending air heat-exchanged by the indoor heat exchanger 101 into the room, and the outdoor unit 110 includes an outdoor fan 115 for sending air to the room Outdoor heat exch...

Example

[0064] [Second Embodiment]

[0065] Image 6 It is a flowchart which shows the activation control at the time of the operation start of the air conditioner 10 which concerns on 2nd Embodiment. In addition, in the activation control of the second embodiment, the same step numbers are assigned to the same steps as the activation control of the first embodiment, and the detailed description thereof will be omitted.

[0066] When the operation of the air conditioner 10 is started, in the startup control of the second embodiment, it is first determined whether or not the compressor 111 is in a sleep state ( S1 ). The judgment is here as figure 2 The S1 step of the startup control, but can also be used as Figure 4 The S1' step of the start-up control can also be used with Figure 5 The startup control of the same uses two steps S1 and S1'. This is also the same as the step of S16 described later.

[0067] When the compressor 111 is not in the sleep state (NO in S1 ), the act...

Example

[0075] [Third Embodiment]

[0076] In the above-described first and second embodiments, the sleep state of the compressor 111 is determined based on the outdoor heat exchanger temperature and the discharge temperature, but such determination requires a temperature sensor. In recent years, air conditioners in which the number of temperature sensors used is reduced as much as possible have also been developed, and it is considered to be effective if the sleep state can be determined without using temperature sensors in such air conditioners.

[0077] Figure 8 It is a flowchart which shows the activation control at the time of the operation start of the air conditioner 10 which concerns on 3rd Embodiment. In addition, in the activation control of the third embodiment, the same step numbers are assigned to the same steps as the activation control of the first and second embodiments, and the detailed description thereof will be omitted.

[0078] When the operation of the air con...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

An air conditioner according to the present invention determines whether a compressor is in a sleep state at the start of a heating operation, increases an indoor fan to a target rotational speed at afirst rate of change (R1) if it is determined that the compressor is not in the sleep state, and starts the indoor fan to the target rotational speed at a second rate of change (R2) if it is determined that the compressor is in the sleep state, wherein the second rate of change (R2) is slower than the first rate of change (R1).

Description

technical field [0001] The present invention relates to an air conditioner. Background technique [0002] An air conditioner utilizing a refrigeration cycle (heat pump cycle) operates a compressor to circulate refrigerant in the cycle. The inside of the compressor is filled with lubricating oil for good operation of the working parts. [0003] During operation of the compressor, part of the oil dissolves in the refrigerant and flows out of the compressor together with the refrigerant. The oil flowing out to the outside of the compressor returns to the compressor again after being circulated, but the time before the oil returns is not short. Therefore, if the amount of oil dissolved in the refrigerant and flowing out of the compressor is large, there may be an oil shortage in the compressor. [0004] The amount of oil dissolved in the refrigerant depends largely on the temperature, the lower the temperature, the more oil dissolved in the refrigerant. That is, if the tempe...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F24F11/58F24F11/64F24F11/74F24F11/77F24F11/86F25B13/00F25B31/00F25B49/02
CPCF24F11/77F24F11/86F24F11/64F24F11/74F24F11/58F25B31/004F25B49/022F25B13/00Y02B30/70
Inventor 上野圆
Owner SHARP KK
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap