JPS5878430U

JPS5878430U - Air conditioner defrost circuit

Info

Publication number: JPS5878430U
Application number: JP17480981U
Authority: JP
Inventors: 中村　節
Original assignee: 三菱電機株式会社
Priority date: 1981-11-24
Filing date: 1981-11-24
Publication date: 1983-05-27
Also published as: JPS6112505Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来の空気調和機の除霜回路を示す回路図、第
２．　３．　４図はこの考案の実施例を示す回路図であ
る。図中の符号は、１は冷暖切換スイッチ、２は温度調節器
、３は圧縮機用リレーコイル、４は霜取り用タイマーモ
ータ、５は補助リレーコイル、５ａ、５ｃ、５ｅはこの
ａ接点、５ｂ、５ｄはこのｂ接点、６は補助リレーコイ
ル、６ｂはこのｂ接点、７ａ、７ｂはタイマー接点、８
は四方弁コイル、９は第２霜取りサーモ、１０は第１霜
取りサーモ、１１は補助リレーコイル、１１ａはこのａ
の接点、１２は室内送風機用リレーコイル、１３は補助
電気ヒータ用リレーコイル、１４は切換スイッチ、１４
ａ、１４ｂはその接点、１５はＯＮ、ＯＦＦスイッチ、
１６は従来の霜取りサーモ、ｉｏｉ。１０２．１０３’は単相の電路である。図中、同一符号
は同一または相当部分を示す。Fig. 1 is a circuit diagram showing a defrosting circuit of a conventional air conditioner; 3. FIG. 4 is a circuit diagram showing an embodiment of this invention. The symbols in the figure are: 1 is the cooling/heating switch, 2 is the temperature controller, 3 is the compressor relay coil, 4 is the defrost timer motor, 5 is the auxiliary relay coil, 5a, 5c, 5e are this a contact, 5b , 5d is this B contact, 6 is the auxiliary relay coil, 6b is this B contact, 7a and 7b are the timer contacts, 8
is a four-way valve coil, 9 is a second defrost thermostat, 10 is a first defrost thermostat, 11 is an auxiliary relay coil, and 11a is this a
12 is a relay coil for indoor blower, 13 is a relay coil for auxiliary electric heater, 14 is a changeover switch, 14
a, 14b are the contacts, 15 is the ON/OFF switch,
16 is a conventional defrost thermometer, Ioi. 102 and 103' are single-phase electrical circuits. In the drawings, the same reference numerals indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

(1) Connect the B contact 6b of the second auxiliary relay connected to the electric path R101 of the single-phase circuit, the A contact 5a of the first auxiliary relay, and the defrost timer motor 4 connected to the telephone 5102 in series in the above order, Timer 4 connected to electrical circuit R101
The b contact 7b of the above and the second auxiliary relay coil 6 connected to the electric line 5102 are connected in series, and the a contact 5a of the first auxiliary relay, the middle of the defrost timer motor 4, and the timer 4 are connected in series.
The middle between the B contact 7b and the second auxiliary relay coil 6 is connected to the first
Connected via the b contact 5b of the auxiliary relay, and connected to the electrical circuit R101.
The a contact 7a of the timer 4 connected to the second defrost thermostat 9, the first defrost thermostat 10, and the first auxiliary relay 5 connected to the electric circuit 5102 are connected in series in the above order, and
The a contact 5C of the first auxiliary relay is connected to the second defrost thermostat 9 so as to be parallel to the contact 7a of the timer, and the third auxiliary relay 11 connected to the electric circuit 5102 and the a contact 11a of the third auxiliary relay are The second auxiliary relay 5 and the first defrost thermostat 10 are connected in series in order and are connected in parallel to the first auxiliary relay 5 and the first defrost thermostat 10.
connected to the defrosting thermostat 9, and also connected to the third auxiliary relay 1.
The four-way valve coil 8 connected to the electrical circuit R101 is connected to the electrical circuit 51 by connecting the intermediate point between the A contact 1ia of the first and third auxiliary relays, and the intermediate point between the first auxiliary relay 5 and the first defrost thermostat 10.
A defrosting circuit for an air conditioner, characterized in that the defrosting circuit is connected in series to the b contact 5d of the first auxiliary relay connected to the auxiliary relay 02.

(2) The defrosting circuit for an air conditioner according to claim 1, wherein the defrosting time setting value of the defrosting timer 4 is 1 minute or less.