CN203340035U

CN203340035U - Device for mounting timing shutdown by using air conditioning repair switch

Info

Publication number: CN203340035U
Application number: CN2013204262790U
Authority: CN
Inventors: 周芸
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-07-17
Filing date: 2013-07-17
Publication date: 2013-12-11
Anticipated expiration: 2023-07-17

Abstract

The utility model discloses a device for mounting timing shutdown by using an air conditioning repair switch. The device is characterized in that the device comprises a 12V DC power supply, a timing capacitor rapid charging and slow discharging circuit, a monostable timing circuit, a DC relay control air conditioner repair switch circuit, and an air conditioner operation indication lamp. The model of a time base circuit IC1 in the monostable timing circuit is NE555. A lot of cabinet air conditioners have no shutdown function on the market, certain trouble is brought to a user, and for the purpose of human health, power saving and reduction of air conditioner wear, by using a repair switch on an air conditioner, the purpose is realized through mounting a timing shutdown circuit. In order to solve a technical problem of time base circuit super long timing which is always failed to be broken, on the base of not changing the manufacture of a typical timing circuit by using the time base circuit, the purpose of super long timing by using a time base circuit can be realized by only adding two normal components in a typical monostable timing circuit.

Description

Install timing shutdown device additional with the air-conditioning maintenance switch

Technical field

The utility model belongs to the Time Control Technique field, is to install timing shutdown device about a kind of additional with the air-conditioning maintenance switch.

Background technology

On market, have many cabinet air-conditioners there is no the timing shutdown function, this brings certain trouble to the user, as: when noon or the night rest, needing air-conditioning to work on after a period of time can close automatically.Its purpose has three: one, for health prevents flu; The 2nd, for conservation of power; The 3rd, reduce the unnecessary mechanical wear of air-conditioning.In order to reach this purpose, can utilize the service switch on air-conditioning, by installing timing shutdown circuit additional, can realize.Timing shutdown circuit can select time-base circuit as core parts, and still, time-base circuit is made the regularly manufacturing technology of more than 30 minutes suitable difficulty.

All the time fail to break through time-base circuit overlength technical barrier regularly in order to solve, on the basis that does not change used time base circuit production typical case timing circuit, described in the utility modelly install timing shutdown device additional with the air-conditioning maintenance switch and only in typical timing circuit, increase by 2 common components and parts, can realize the purpose regularly by the time-base circuit overlength.

Below detailed description is described in the utility model installs with the air-conditioning maintenance switch correlation technique content that timing shutdown device relates in implementation process additional.

The utility model content

Goal of the invention and beneficial effect: on market, have many cabinet air-conditioners there is no the timing shutdown function, this brings certain trouble to the user, in order to realize health, conservation of power and minimizing air-conditioning machinery wearing and tearing purpose, can utilize the service switch on air-conditioning, can realize by installing timing shutdown circuit additional.

The circuit working principle: the core circuit that installs timing shutdown device with the air-conditioning maintenance switch additional is a monostable circuit, click key switch AN, the 12V DC power supply adds to the two ends of timing capacitor C1, timing capacitor C1 is charged to rapidly 12V, at this moment the base stage of NPN transistor VT1 obtains bias voltage, make NPN transistor VT1 conducting, and then make the 2nd pin of time-base circuit IC1 and the 6th pin export high level, the 3rd pin output low level of time-base circuit IC1, the coil of direct current relay J obtains electric work, its normally opened contact J-1 adhesive, at this moment with air-conditioning maintenance switch SW the direct current relay J normally opened contact J-1 closure that connects, air-conditioning is started working.

Along with the voltage on timing capacitor C1 descends lentamente, the 2nd pin of time-base circuit IC1 and the voltage of the 6th pin will descend gradually, when the high level voltage of the 2nd pin of base IC circuit 1 and the 6th pin drops to 2/3 DC power supply voltage at that time, the low level upset of the 3rd pin output of time-base circuit IC1 is high level, at this moment the coil of direct current relay J is not worked dead electricity, direct current relay J normally opened contact J-1 discharges, and the air-conditioning of at this moment being controlled by normally opened contact J-1 quits work.The resistance of adjusting linear potentiometer RP can change the air-conditioning timing working time.Attention: when using the utility model, the air-conditioning maintenance switch SW must be placed in closed condition.

Technical characterictic: with the air-conditioning maintenance switch, install timing shutdown device additional, it comprises 12V DC power supply, timing capacitor quick charge and slow discharge circuit, mono-stable timing circuit, direct current relay control air-conditioning maintenance switching circuit, operation of air conditioner indicator light, it is characterized in that:

Timing capacitor quick charge and slow discharge circuit: it is comprised of key switch AN, timing capacitor C1, NPN transistor VT1 and linear potentiometer RP, the base stage of NPN transistor VT1 connects the end of key switch AN and the positive pole of timing capacitor C1, the negative pole connection circuit ground GND of timing capacitor C1, the anodal VCC of the collector electrode connection circuit of the other end of key switch AN and NPN transistor VT1, an end and the mono-stable timing circuit of the emitter wiring potentiometer RP of NPN transistor VT1, the other end of linear potentiometer RP and movable end connection circuit ground GND thereof;

Mono-stable timing circuit: the model that time-base circuit IC1 adopts is NE555, the anodal VCC of the 4th pin of time-base circuit IC1 and the 8th pin connection circuit, the 2nd pin of time-base circuit IC1 and the 6th pin connect the emitter of NPN transistor VT1, the 1st pin connection circuit ground GND of time-base circuit IC1, the 3rd pin of time-base circuit IC1 connects direct current relay and controls the air-conditioning maintenance switching circuit, and the normally opened contact J-1 of direct current relay J connects the two ends of air-conditioning maintenance switch SW;

Direct current relay is controlled the air-conditioning maintenance switching circuit: the 3rd pin of time-base circuit IC1 meets an end of direct current relay J coil and the positive pole of protection diode D1, the anodal VCC of negative pole connection circuit of the other end of direct current relay J coil and protection diode D1;

The anodal VCC of 12V DC power anode connection circuit, 12V DC power cathode connection circuit ground GND.

The operation of air conditioner indicator light: it is comprised of resistance R 1 and LED, and the 3rd pin of time-base circuit IC1 passes through the negative pole of resistance R 1 sending and receiving optical diode LED, the anodal VCC of the anodal connection circuit of LED.

The accompanying drawing explanation

Accompanying drawing 1 is to install the circuit working schematic diagram of timing shutdown device additional with the air-conditioning maintenance switch; The normally opened contact that J-1 in accompanying drawing 1 is direct current relay J.

Embodiment

According to shown in accompanying drawing 1, with the air-conditioning maintenance switch, installing timing shutdown device circuit working schematic diagram and accompanying drawing explanation additional, and according to annexation between components and parts in the described each several part circuit of utility model content, and the components and parts technical parameter described in execution mode requires and the circuit production main points are implemented to realize the utility model, below in conjunction with embodiment, correlation technique of the present utility model is further described.

The selection of components and parts and technical parameter

IC1 is time-base circuit, and the model of selecting is: NE555; Time-base circuit IC1 is 8 pin DIP encapsulation, and each pin function: 1 pin is circuit ground; 2 pin are trigger end; 3 pin are output; 4 pin are reset terminal; 5 pin are for controlling voltage; 6 pin are thresholding (threshold value); 7 pin are discharge end; 8 pin are positive source;

Key switch AN can select the K-18 type;

Timing capacitor C1 is electrochemical capacitor, and capacity is 1000 μ F/25V, requires timing capacitor C1 self leakage current the smaller the better;

VT1 is NPN transistor, and the model of selecting is 2SC9013, requires β value >=220;

RP is linear potentiometer, and its resistance is 51K Ω;

The resistance of resistance R 1 is 1K Ω;

LED is red light emitting diodes;

The model that direct current relay J selects is JQX-13F-12V; Direct current relay J has 5 pin, that is: 2 pin of coil of direct current relay J, and power stage has 3 pin, and 3 pin form respectively normally opened contact and normally-closed contact, the normally opened contact that in accompanying drawing 1, J-1 is direct current relay J.

Circuit production main points and circuit debugging

Because of the circuit structure that installs timing shutdown device with the air-conditioning maintenance switch additional fairly simple, as long as the electronic devices and components performance of generally selecting is intact, and the components and parts annexation in accompanying drawing 1 is welded to specifications, physical connection line and welding quality are after careful inspection is correct, and circuit of the present utility model does not need to debug and can work substantially;

In circuit, timing is determined by the value of timing capacitor C1, linear potentiometer RP, and according to the time needs of air-conditioning timing shutdown, the capacity of timing capacitor C1 can be selected in 1000～2200 μ F scopes;

Selecting the capacity of timing capacitor C1 is 1000 μ F/25V, and when the resistance of linear potentiometer RP is 2.3K Ω, this device regularly is about 10 minutes; When the resistance of linear potentiometer RP is 22K Ω, this device regularly is about 100 minutes; When the resistance of linear potentiometer RP is 51K Ω, this device regularly is about 200 minutes;

Attention: when using the utility model, the air-conditioning maintenance switch SW must be placed in closed condition; The all components and parts that install timing shutdown device additional with the air-conditioning maintenance switch can all be packed in the magazine of electrician with 86 profile plates.

Claims

1. one kind installs timing shutdown device additional with the air-conditioning maintenance switch, it comprises 12V DC power supply, timing capacitor quick charge and slow discharge circuit, mono-stable timing circuit, direct current relay control air-conditioning maintenance switching circuit, operation of air conditioner indicator light, it is characterized in that:

Described timing capacitor quick charge and slow discharge circuit are comprised of key switch AN, timing capacitor C1, NPN transistor VT1 and linear potentiometer RP, the base stage of NPN transistor VT1 connects the end of key switch AN and the positive pole of timing capacitor C1, the negative pole connection circuit ground GND of timing capacitor C1, the anodal VCC of the collector electrode connection circuit of the other end of key switch AN and NPN transistor VT1, an end and the mono-stable timing circuit of the emitter wiring potentiometer RP of NPN transistor VT1, the other end of linear potentiometer RP and movable end connection circuit ground GND thereof;

The model that time-base circuit IC1 in described mono-stable timing circuit adopts is NE555, the anodal VCC of the 4th pin of time-base circuit IC1 and the 8th pin connection circuit, the 2nd pin of time-base circuit IC1 and the 6th pin connect the emitter of NPN transistor VT1, the 1st pin connection circuit ground GND of time-base circuit IC1, the 3rd pin of time-base circuit IC1 connects direct current relay and controls the air-conditioning maintenance switching circuit, and the normally opened contact J-1 of direct current relay J connects the two ends of air-conditioning maintenance switch SW;

The 3rd pin that described direct current relay is controlled time-base circuit IC1 in the air-conditioning maintenance switching circuit meets an end of direct current relay J coil and the positive pole of protection diode D1, the anodal VCC of negative pole connection circuit of the other end of direct current relay J coil and protection diode D1;

The anodal VCC of described 12V DC power anode connection circuit, 12V DC power cathode connection circuit ground GND.

2. according to claim 1ly with the air-conditioning maintenance switch, install timing shutdown device additional, it is characterized in that: the operation of air conditioner indicator light is comprised of resistance R 1 and LED, the 3rd pin of time-base circuit IC1 passes through the negative pole of resistance R 1 sending and receiving optical diode LED, the anodal VCC of the anodal connection circuit of LED.