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air conditioner

An air conditioning, duty cycle technology, applied in air conditioning systems, control inputs involving air characteristics, climate sustainability, etc., can solve problems such as underutilization of PTC heaters, reduced heating capacity, etc., to prevent temperature rises , the effect of preventing overcurrent and overheating

Inactive Publication Date: 2011-12-14
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the capacity of the PTC heater may not be fully utilized and, for example, when the outside temperature is low, the heating capacity may be reduced

Method used

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Examples

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Embodiment Construction

[0050] Embodiments of the present invention will be described below with reference to the drawings. figure 1 with figure 2 They are a perspective view and a side sectional view showing the air conditioning apparatus of the first embodiment, respectively. figure 1 Showing that the cover 30 has been removed (refer to figure 2 )status. The air conditioning device 1 has an integral structure including an indoor interior 2 placed indoors and an outdoor exterior 4 adjacent to the indoor interior 2 placed outdoors.

[0051] The front of the interior 2 is provided with an inlet 21 ; the front of the exterior 4 is provided with an outdoor heat exchanger 42 . In the following description, the inlet 21 side is referred to as the front side, and the outdoor heat exchanger 42 side is referred to as the rear side (rear side). The right side and the left side seen from the relative position in front of the entrance 21 are called the right side and the left side of the air-conditioning ...

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Abstract

Disclosed is an air conditioning device (1) that includes: a PTC heater (55) in which, in a stable region (S1), when the temperature of the PTC heater (55) is increased, a resistance is decreased or is substantially constant whereas, in a rise region (S2), the resistance is rapidly increased when the temperature exceeds a rise temperature (T1); and an air blower (25) that generates an air current which exchanges heat with the PTC heater (55), and that performs a heating operation by discharging air heated by the PTC heater (55) into the room, when the temperature within the room is within a low temperature range including a region whose temperature is lower than a set temperature, the duty ratio is set at 100%, and the PTC heater (55) is driven in the rise region (S2), when the temperature within the room is within a high temperature range whose temperatures are higher than the set temperature, the PTC heater (55) is stopped, and when the temperature within the room is within an intermediate temperature range between the low temperature range and the high temperature range, the duty ratio is set at a predetermined duty ratio, and the PTC heater (55) is driven in the stable region (S1).

Description

technical field [0001] The invention relates to an air conditioning device with a PTC heater. Background technique [0002] A conventional air conditioning device is disclosed in JP-A-H08-152179. This air conditioner has an integral structure in which the indoors placed indoors are arranged at the front, and the outdoors placed outdoors are arranged at the rear. In the outdoor part, a compressor operating a refrigeration cycle and an outdoor heat exchanger connected to the compressor are arranged. An inlet and an outlet are provided inside the chamber; a blower fan, an indoor heat exchanger and a positive temperature coefficient (PTC, positive temperature coefficient) heater are arranged inside the chamber. The indoor heat exchanger is connected to the compressor via a refrigerant pipe. The blower sucks air through the inlet, and then discharges the air that has been heat-exchanged with the indoor heat exchanger and the PTC heater through the outlet. [0003] When the co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F1/02F24F11/02F24F1/0375
CPCF24F2221/34Y02B30/123F24F11/0012F24F2221/54F24F2011/0064F24F1/02F24F11/30F24F2110/10F24F11/65F24F1/0375F24F11/77F24F11/871F24F11/63F24F11/86F24F11/56F24F2140/00
Inventor 有贺彻
Owner SHARP KK
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