CN206377323U - The anti-lost electric control circuit of air-conditioning system four-way valve - Google Patents
The anti-lost electric control circuit of air-conditioning system four-way valve Download PDFInfo
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- CN206377323U CN206377323U CN201621488479.9U CN201621488479U CN206377323U CN 206377323 U CN206377323 U CN 206377323U CN 201621488479 U CN201621488479 U CN 201621488479U CN 206377323 U CN206377323 U CN 206377323U
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- relay
- way valve
- contact switch
- parallel
- controller
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Abstract
The utility model is related to a kind of anti-lost electric control circuit of air-conditioning system four-way valve, including controller, starting relay and relay in parallel, the startup relay coil of starting relay is connected with the controller, open one end and be connected with the relay coil in parallel of relay in parallel in startup contact, the other end is connected with collateral contact switch, the collateral contact of relay in parallel switchs one end and starts contact switch connection and the connection between controller and four-way valve, the other end is connected with a power supply, and collateral contact switch is connected to same power supply with controller；When air-conditioning system starts, start relay coil KW and obtain electric, connected so that starting contact switch, so that relay coil in parallel obtains electric, and then make it that collateral contact switch is always under air-conditioning system starting state, when controller output signal is normal, four-way valve coil obtains electric normal work, when controller output signal failure, directly it is connected electric with power supply by the collateral contact switch connected by four-way valve coil, four-way valve normal work.The utility model is simple in construction, with low cost, good reliability, ensure that the commutation of four-way valve is safe and reliable significantly.
Description
Technical field
The utility model is related to a kind of control circuit, and in particular to a kind of anti-lost electric control circuit of air-conditioning system four-way valve.
Background technology
Air-conditioning four-way valve, is the control valve with four hydraulic fluid ports, four-way valve is indispensable part in refrigeration plant, its
Operation principle is that, when electromagnetic valve coil is in off-position, pilot slide valve is moved to left under the driving of right side compression spring, gases at high pressure
Enter right-hand member plunger shaft after into capillary, on the other hand, the gas discharge of left end plunger shaft is pressed because piston two ends are present
Difference, piston and main slide valve are moved to left, and blast pipe is taken over outdoor unit and are communicated, another two piece-root graftings pipe is communicated, form kind of refrigeration cycle.
When electromagnetic valve coil is in "on" position, pilot slide valve overcomes compression bullet under the magneticaction that magnet coil is produced
The tension force of spring and move to right, gases at high pressure, which enter after capillary, enters left end plunger shaft, on the other hand, the gas of right-hand member plunger shaft row
Go out, because piston two ends have pressure difference, piston and main slide valve are moved to right, blast pipe is taken over indoor set and communicate, another two piece-root graftings pipe
Communicate, formation heats circulation.
Conventional air-conditioner set is directly connected to four-way valve to its signal by controller, with controller four-way Vavle switching.Generally
When four-way valve obtains electric, air-conditioning heating state is switched in, and when four-way valve dead electricity, is switched to air-conditioning heating state.
When air-conditioner set is in heating process, if there is event in the four-way valve control signal of four-way valve control output
Barrier, then can cause four-way valve can not just often-have-electricity, ultimately result in air-conditioner set and uncontrollably voluntarily switch to refrigerating state, i.e.,
Air-conditioner set is caused can not to be normally maintained at the state of heating in heating process.
In consideration of it, proposing that a kind of anti-lost electric control circuit of air-conditioning system four-way valve is the class to be studied of the utility model
Topic.
The content of the invention
The utility model purpose is to provide a kind of anti-lost electric control circuit of air-conditioning system four-way valve, to solve in the prior art
When air-conditioner set is in heating process, it is impossible to be normally maintained at the problem of heating state.
To reach above-mentioned purpose, the technical solution adopted in the utility model is：A kind of air-conditioning system four-way valve is anti-lost automatically controlled
Circuit processed, including a controller, a starting relay and a relay in parallel, the controller respectively with the starting relay
With four-way valve electrical connection, the starting relay is made up of a startup relay coil and a startup contact switch, the startup
Contact switch is a normal open switch, and the relay in parallel is made up of a relay coil in parallel and a contact switch in parallel, and this is simultaneously
Connection contact switch is a normal open switch；
The startup relay coil KW of the starting relay is connected with the controller, start contact switch KW-1 one end with
The relay coil KC connections in parallel of relay in parallel, the other end is connected with collateral contact switch KC-1；The relay in parallel
Collateral contact switch KC-1 one end be connected with the startup contact switch KW-1 and simultaneously with the controller and the four-way valve
Between connection, the other end is connected with a power supply, and collateral contact switch KC-1 is connected to same electricity with the controller
Source；
In the operating condition, when the air-conditioning system starts, the startup relay coil obtains electric so that starts contact and opens
Close and connect, so that relay coil in parallel obtains electric, and then cause collateral contact switch under air-conditioning system starting state always
Connect, when controller output signal is normal, the four-way valve coil obtains electric, four-way valve normal work, believe when controller is exported
During number failure, the four-way valve coil is directly connected electric by the collateral contact switch connected with power supply, the normal work of four-way valve
Make.
Relevant content in above-mentioned technical proposal is explained as follows：
1st, in such scheme, when the air-conditioning system is shut down, the startup relay coil（KW）Dead electricity, now starts and touches
Point is switched off, so that relay coil dead electricity in parallel, and then collateral contact is switched off, finally cause four-way valve line
Enclose dead electricity.
Utility model works principle is：Including controller, starting relay and relay in parallel, starting relay is opened
Dynamic relay coil KW is connected with the controller, starts the relay coil KC in parallel of contact switch KW-1 one end and relay in parallel
Connection, the other end is connected with collateral contact switch KC-1, and collateral contact switch KC-1 one end of relay in parallel is with starting contact
KW-1 connections and the connection between controller and four-way valve are switched, the other end is connected with a power supply, and collateral contact is opened
Close KC-1 and be connected to same power supply with controller；When air-conditioning system starts, start relay coil KW and obtain electric so that start contact
Switch KW-1 to connect, so that parallel connection relay coil KC obtains electric, and then collateral contact switch KC-1 is opened in air-conditioning system
Always under dynamic state, when the output signal of controller 1 is normal, four-way valve coil obtains electric, four-way valve normal work, works as control
During device output signal failure, directly it is connected electric with power supply by the collateral contact switch KC-1 connected by four-way valve coil, four
Port valve normal work.
Because above-mentioned technical proposal is used, the utility model has following advantages compared with prior art：The utility model
Simple in construction, with low cost, good reliability ensure that the commutation of four-way valve is safe and reliable significantly.
Brief description of the drawings
Accompanying drawing 1 is the anti-lost electric control circuit diagram of four-way valve in the present embodiment 1.
Embodiment
Below in conjunction with the accompanying drawings and embodiment is further described to the utility model：
Embodiment 1：A kind of anti-lost electric control circuit of air-conditioning system four-way valve
Referring to accompanying drawing 1, including the relay in parallel of a controller 1, a starting relay and one, the controller 1 respectively with
The starting relay and four-way valve 2 are electrically connected, and the starting relay is opened by a startup relay coil KW and a startup contact
Close KW-1 constitute, startup contact switch KW-1 be a normal open switch, the relay in parallel by a parallel connection relay coil KC with
One contact switch KC-1 in parallel is constituted, and collateral contact switch KC-1 is a normal open switch.
The startup relay coil KW of the starting relay is connected with the controller 1, starts contact switch KW-1 one end
It is connected with the relay coil KC in parallel of relay in parallel, the other end is connected with collateral contact switch KC-1, the relay in parallel
Collateral contact switch KC-1 one end be connected with the startup contact switch KW-1 and with the controller 1 and the four-way valve 2
Between connection, the other end is connected with a power supply 3, and collateral contact switch KC-1 be connected to the controller 1 it is same
Power supply 3.
In the operating condition, when the air-conditioning system starts, the startup relay coil KW obtains electric so that start contact
Switch KW-1 to connect, so that parallel connection relay coil KC obtains electric, and then collateral contact switch KC-1 is opened in air-conditioning system
Always under dynamic state, when the output signal of controller 1 is normal, the coil of four-way valve 2 obtains electric, the normal work of four-way valve 2,
When 1 output signal failure of controller, KC-1 is switched directly and power supply by the collateral contact connected by the coil of four-way valve 2
Connect electric, the normal work of four-way valve 2.When the air-conditioning system is shut down, the startup relay coil KW dead electricity now starts
Contact switch KW-1 disconnects, so that relay coil dead electricity in parallel, and then collateral contact switch KC-1 is disconnected, finally make
Obtain the coil losing electricity of four-way valve 2.
When the air-conditioning system is shut down, the startup relay coil KW dead electricity now starts contact switch KW-1 and disconnected,
So that relay coil dead electricity in parallel, and then collateral contact switch KC-1 is disconnected, finally cause four-way valve coil losing electricity.
Above-described embodiment is only to illustrate technical concepts and features of the present utility model, and its object is to allow be familiar with technique
Personage can understand content of the present utility model and implement according to this, protection domain of the present utility model can not be limited with this.
All equivalent change or modifications made according to the utility model Spirit Essence, should all cover protection domain of the present utility model it
It is interior.
Claims (1)
1. a kind of anti-lost electric control circuit of air-conditioning system four-way valve, it is characterised in that：Including a controller, a starting relay and
One relay in parallel, the controller is electrically connected with the four-way valve, and the starting relay starts relay coil by one（KW）
Start contact switch with one（KW-1）Constitute, the startup contact switch（KW-1）For a normal open switch, the relay in parallel by
One relay coil in parallel（KC）With a contact switch in parallel（KC-1）Constitute, collateral contact switch is a normal open switch；
The startup relay coil of the starting relay（KW）It is connected with the controller, starts contact switch（KW-1）One end with
The relay coil in parallel of relay in parallel（KC）Connection, the other end is switched with collateral contact（KC-1）Connection；The relay in parallel
The collateral contact switch of device（KC-1）One end and the startup contact switch（KW-1）Connect and simultaneously with the controller and institute
The connection between four-way valve is stated, the other end is connected with a power supply, the collateral contact switch（KC-1）With the controller
It is connected to same power supply；
In the operating condition, when the air-conditioning system starts, the startup relay coil（KW）Obtain electric so that start contact and open
Close（KW-1）Connect, so that relay coil in parallel（KC）Obtain electric, and then cause collateral contact switch（KC-1）In air-conditioning system
Always under system starting state, when controller output signal is normal, the four-way valve coil obtains electric, the normal work of four-way valve
Make, when controller output signal failure, the four-way valve coil is switched by the collateral contact connected（KC-1）Directly with electricity
Source connects electric, four-way valve normal work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621488479.9U CN206377323U (en) | 2016-12-30 | 2016-12-30 | The anti-lost electric control circuit of air-conditioning system four-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621488479.9U CN206377323U (en) | 2016-12-30 | 2016-12-30 | The anti-lost electric control circuit of air-conditioning system four-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206377323U true CN206377323U (en) | 2017-08-04 |
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ID=59404353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621488479.9U Active CN206377323U (en) | 2016-12-30 | 2016-12-30 | The anti-lost electric control circuit of air-conditioning system four-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206377323U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110647100A (en) * | 2019-10-16 | 2020-01-03 | 长沙中联恒通机械有限公司 | PVG electro-hydraulic proportional valve control system and control method |
-
2016
- 2016-12-30 CN CN201621488479.9U patent/CN206377323U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110647100A (en) * | 2019-10-16 | 2020-01-03 | 长沙中联恒通机械有限公司 | PVG electro-hydraulic proportional valve control system and control method |
| CN110647100B (en) * | 2019-10-16 | 2020-10-27 | 长沙中联恒通机械有限公司 | PVG electro-hydraulic proportional valve control system and control method |
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