JPH0352538U

JPH0352538U -

Info

Publication number: JPH0352538U
Application number: JP1989112429U
Authority: JP
Priority date: 1989-09-26
Filing date: 1989-09-26
Publication date: 1991-05-22

Description

[Brief explanation of the drawing]

第１図はこの考案による空気調和装置の一実施
例を示す電気回路図、第２図は第１図に示す電気
回路の各部の動作タイミング図、第３図は従来の
装置を示す電気回路図である。図において、４…冷暖切換スイツチ、４ａ…冷
暖側接点、４ｂ…暖房側接点、５…温度調節手段
、６…起動用遅延タイマー、６ａ…駆動部、６ｂ
…常開限時接点、７…電磁接触器、７ａ…第１の
常開接点、７ｂ…第２の常開接点、９…切換弁、
１０…初期起動用リレー、１０ａ…電磁コイル部
、１０ｂ…リレー保持用接点、１０ｃ…常閉接点
、１１…遅延起動選択手段である。尚、図中同一
符号は同一又は相当部分を示す。 Fig. 1 is an electric circuit diagram showing an embodiment of the air conditioner according to this invention, Fig. 2 is an operation timing diagram of each part of the electric circuit shown in Fig. 1, and Fig. 3 is an electric circuit diagram showing a conventional device. It is. In the figure, 4...Cooling/heating changeover switch, 4a...Cooling/heating side contact, 4b...Heating side contact, 5...Temperature adjustment means, 6...Delay timer for starting, 6a...Drive unit, 6b
... Normally open time contact, 7... Magnetic contactor, 7a... First normally open contact, 7b... Second normally open contact, 9... Switching valve,
DESCRIPTION OF SYMBOLS 10... Relay for initial start-up, 10a... Electromagnetic coil part, 10b... Relay holding contact, 10c... Normally closed contact, 11... Delay start selection means. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

In a device that has a refrigerant circuit composed of a compressor, a switching valve, a heat exchanger, a throttle device, etc., a cooling/heating changeover switch having a cooling side contact and a heating side contact, connected in series with this cooling/heating changeover switch, a temperature control means having contacts that open and close depending on the air temperature; an electromagnetic contactor that controls the operation of the compressor;
a normally closed contact that is connected to the power source via the contact of the cooling/heating changeover switch and the contact of the temperature adjustment means and energizes the electromagnetic contactor during initial startup; a cooling side contact and a heating side contact of the heating/cooling changeover switch; Alternatively, for initial startup, the device includes a delayed startup selection means that can select the power source side, and an electromagnetic coil unit connected via a first normally open contact that is closed when the electromagnetic contactor is energized. a relay, a relay holding contact that is connected in parallel with the first normally open contact and closes when the initial startup relay is energized; a relay holding contact that is connected in parallel with the normally closed contact, and the electromagnetic contactor; a second normally open contact that closes when energized; a normally open time limit contact connected in parallel with the normally closed contact; and a second normally open contact that is connected in parallel with the normally closed contact and the magnetic contactor; An air conditioner comprising: a starting delay timer having a drive section that drives the normally open time limit contact.