CN209448425U - A kind of three-phase anti-misconnection circuit and corresponding air-conditioning - Google Patents
A kind of three-phase anti-misconnection circuit and corresponding air-conditioning Download PDFInfo
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- CN209448425U CN209448425U CN201822207581.2U CN201822207581U CN209448425U CN 209448425 U CN209448425 U CN 209448425U CN 201822207581 U CN201822207581 U CN 201822207581U CN 209448425 U CN209448425 U CN 209448425U
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Abstract
The utility model provides a kind of three-phase anti-misconnection circuit and corresponding air-conditioning, three-phase wiring point is formed between three phase mains firewire in the three-phase anti-misconnection circuit, between zero curve and the three-phase wiring point be arranged for detect zero curve access point current potential it is whether equal with the three-phase wiring point current potential and accordingly control three-phase circuit on-off to prevent route misconnection potentiometric detection module.The utility model between the zero curve of three-phase circuit and three-phase wiring point by being arranged potentiometric detection module; it is correct that circuit connection is represented when zero curve access point current potential is equal with three-phase wiring point current potential; circuit normally; and it is incorrect to represent circuit connection when zero curve access point current potential and unequal three-phase wiring point current potential; circuit is not turned on; to prevent hot terminal and zero curve connecting terminal wrong well; it protects late-class circuit component not punctured by electric current and damage, improves the stability of circuit.
Description
Technical field
The utility model relates to technical field of circuit control, in particular to a kind of three-phase anti-misconnection circuit and corresponding sky
It adjusts.
Background technique
With the continuous improvement of people's lives, family's life of mediocrity is just being come into as the air-conditioning of the big part electric appliance of family in the past
Living, Consumer groups are increasing, and still, Chinese Regional is wide, and power supply unit and system are also widely different, big city, agriculture
The consumer in village and mountain area is different to three-phase wire cognitive ability, and masses' accident wrong of some electrician's lack of knowledge is caused to power
There are many case where line, cause safety accident, and the technician of field of air conditioning is needed to do traditional air conditioning wiring circuit
Necessity is improved, to facilitate broad masses.
It is identical with the connecting terminal of firewire using zero curve in the three-phase circuits of electric appliances such as the air-conditioning of three phase supply at present,
Since the number of phases is more, color is generallyd use during wiring to distinguish zero curve and hot terminal, although this differentiating method
It is simple and easy, but the problem of be easy to appear wrong zero curve and firewire, if route wrong, powered on moment because of input current potential not
Together, it is easy to circuit unidirectional device (the single-phase device of circuit generally pressure resistance 220V) be burnt, electric appliance service life is influenced.
Utility model content
In view of this, the utility model be directed to it is a kind of using three-phase potential equalization point and relay cooperation control electricity
Stream circulation, prevent three phase mains firewire and zero curve wrong and damage the three-phase anti-misconnection circuit of circuit element.
Corresponding, the utility model is also directed to a kind of air-conditioning using above-mentioned three-phase anti-misconnection circuit.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
A kind of three-phase anti-misconnection circuit, it is characterised in that:
Three-phase wiring point is formed between three phase mains firewire in the three-phase anti-misconnection circuit, zero curve connects with described three
Whether setting is equal with the three-phase wiring point current potential and control three-phase accordingly for detecting zero curve access point current potential between line point
Connecting and disconnecting of the circuit to prevent route misconnection potentiometric detection module.
Further, the potentiometric detection module includes the relay being connected between the zero curve and the three-phase wiring point
Device and the contact for being switched on or switched off the zero curve route under relay domination；
The contact connects the zero curve when zero curve access point current potential is equal with the three-phase wiring point current potential
Make the zero curve not when the zero curve access point current potential and the three-phase wiring point current potential are unequal so that the circuit is connected
Conducting is to disconnect the circuit.
Further, the contact includes normally-closed contact and normally opened contact, the zero curve access point current potential and the three-phase
Wiring point current potential when equal normally-closed contact closure connect the zero curve, the zero curve access point current potential connects with described three
Line point current potential when unequal normally opened contact closure be not turned on the zero curve.
Further, the relay both ends are parallel with resistance R4.
Further, the three phase mains firewire R, three phase mains firewire S, three phase mains firewire T and three phase connection
Resistance R3, resistance R2, resistance R1 are connected respectively between point.
Further, the resistance R1 is equal with the resistance value between resistance R2 and resistance R3.
Further, the relay is electromagnetic relay.
Further, the three phase mains is respectively three phase mains firewire R, three phase mains firewire S and three phase mains fire
Line T.
Further, the load of the three-phase anti-misconnection circuit is controlled in the three-phase anti-misconnection circuit output end connection
The control module of system.
A kind of air-conditioning, it is characterised in that: use foregoing three-phase anti-misconnection circuit.
Compared with the existing technology, three-phase anti-misconnection circuit described in the utility model has the advantage that
By the way that potentiometric detection module is arranged between the zero curve of three-phase circuit and three-phase wiring point, when zero curve access point current potential
It is correct that circuit connection is represented when equal with three-phase wiring point current potential, circuit normally, and work as zero curve access point current potential and three
Phase connection point current potential represents that circuit connection is incorrect, and circuit is not turned on when unequal, to prevent hot terminal well
Son and zero curve connecting terminal wrong, protect late-class circuit component not punctured by electric current and damage, improve the stability of circuit.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.?
In attached drawing:
Fig. 1 is the circuit diagram of the utility model embodiment.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
Fig. 1 shows the circuit diagram of the preferred embodiment of the utility model three-phase anti-misconnection circuit.As shown in Figure 1,
It is formed with three-phase wiring point between the three phase mains firewire of the three-phase anti-misconnection circuit, is set between zero curve and the three-phase wiring point
Set for detect zero curve access point current potential it is whether equal with the three-phase wiring point current potential and accordingly control three-phase circuit on-off with
The potentiometric detection module of anti-route misconnection.
Specific to the present embodiment, the three phase mains in the three-phase anti-misconnection circuit be respectively three phase mains firewire R,
Three phase mains firewire S and three phase mains firewire T.The three-phase anti-misconnection circuit rear end namely the three phase mains firewire R,
S, the output end of T and zero curve N are connected with control module, the control module be used for the load to the three-phase anti-misconnection circuit into
Row control.
It is formed with three-phase wiring point between the three phase mains firewire R, three phase mains firewire S and three phase mains firewire T,
Enabling the three-phase wiring point is N0, is connected with potentiometric detection module between the zero curve and the three-phase wiring point N0, described in order
The zero curve access point of zero line side is N1, then the potentiometric detection module is to be used to detect current potential and the institute of the zero curve access point N1
Whether the current potential for stating three-phase wiring point N0 is equal, and the on-off of the circuit is controlled according to the testing result.
In the present embodiment, the potentiometric detection module include be connected on the zero curve N and the three-phase wiring point N0 it
Between relay and the relay domination under be switched on or switched off the zero curve N contact, the contact includes normally closed
The current potential and the three-phase wiring point N0 of contact K1 and normally opened contact K2, the normally-closed contact K1 in the zero curve access point N1
It is closed when current potential is equal, thus connect the zero curve N the circuit is connected, and the normally opened contact K2 connects in the zero curve
It is closed when the current potential of access point N1 and the unequal current potential of the three-phase wiring point N0, to make the zero curve N be not turned on to disconnect
The circuit.
Divide between the three phase mains firewire R, three phase mains firewire S, three phase mains firewire T and the three-phase wiring point N0
It is not correspondingly connected with resistance R3, resistance R2, resistance R1, resistance value is equal in magnitude between resistance R1, R2 and R3, passes through series resistance respectively
R3, R2 and R1 can prevent relay coil from burning because of super-high-current, and can ensure that the electricity for flowing through three-phase wiring point N0 in this way
Flow it is equal, to maintain three-phase electric equilibrium.Meanwhile the relay both ends are parallel with resistance R4 to shunt, thus further
The electric current for ensuring to flow through relay is not too big, prevents relay from burning because of super-high-current, guarantees circuit safety.
The three-phase anti-misconnection circuit can be used in air-conditioning, it can also be used to other devices or mould for such as being powered by three-phase electricity
In block, the specific working principle is as follows for the three-phase anti-misconnection circuit:
It is when three phase mains firewire R, S, T of the circuit and zero curve N are correctly accessed in respective connecting terminal, i.e., corresponding
The three-phase wiring point N0 of three phase mains firewire R, S, T access the relay coil side, the another of relay coil flanks
Control loop is accessed at zero curve access point N1, the relay both ends, and the current potential of zero curve wiring point N0 is with three-phase wiring point N1's at this time
Current potential is identical, and relay is failure to actuate, and normally-closed contact K1 closure, normally opened contact K2 is disconnected, the three-phase mistake proofing connection circuit rear class
Normally, control module obtain electric normal work.And as three phase mains firewire R, S, T and zero curve N wiring error or phase shortage,
The point of the zero curve wiring point N1 and the current potential of three-phase wiring point N0 are unequal at this time, have electric current in the coil of the relay
It flows through, the actuating of relay, normally opened contact K2 closure, normally-closed contact K1 is disconnected, and the zero curve N and control module are in and disconnect shape
State, the three-phase anti-misconnection circuit rear class route can not be connected, and then protect late-class circuit component not by electric current punch through damage.
The relay can be electromagnetic relay, be also possible to other kinds of relay, as long as being able to achieve according to institute
The current potential of zero curve wiring point N1 is stated compared with the current potential of three-phase wiring point N0, the corresponding on-off for controlling the circuit realizes mistake proofing
Connection function.
This programme circuit structure is simple, only with a relay with regard to very good solution three-phase phase sequence wrong or open-phase protection
Problem, flexible operation, high reliablity, very good solution three-phase circuit wiring error bring many hidden danger, the application can be real
Existing powered on moment connecting and disconnecting of the circuit is controllable, prevents the impact caused by circuit of wrong line current, and the program is not by applicable object
Limitation such as can be the sky using the three-phase anti-misconnection circuit as long as the applicable object is suitable for powering using three-phase electricity
Tune, high-low pressure cabinet etc., it is at low cost.It is particularly suitable for lacking consumer's use in the rural area, mountain area of electrician's knowledge, to reduce safe thing
Therefore.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (10)
1. a kind of three-phase anti-misconnection circuit, it is characterised in that:
Three-phase wiring point, zero curve and the three-phase wiring point are formed between three phase mains firewire in the three-phase anti-misconnection circuit
Between setting it is whether equal with the three-phase wiring point current potential and control three-phase circuit accordingly for detecting zero curve access point current potential
On-off to prevent route misconnection potentiometric detection module.
2. three-phase anti-misconnection circuit according to claim 1, it is characterised in that:
The potentiometric detection module includes the relay being connected between the zero curve and the three-phase wiring point and described
The contact that relay is switched on or switched off the zero curve route under dominating；
The contact connects the zero curve to lead
Lead to the circuit and is not turned on the zero curve when zero curve access point current potential and the unequal three-phase wiring point current potential
To disconnect the circuit.
3. three-phase anti-misconnection circuit according to claim 2, it is characterised in that:
The contact includes normally-closed contact and normally opened contact, and the zero curve access point current potential is equal with the three-phase wiring point current potential
Shi Suoshu normally-closed contact closure connects the zero curve, and the zero curve access point current potential and the three-phase wiring point current potential are unequal
Shi Suoshu normally opened contact closure is not turned on the zero curve.
4. three-phase anti-misconnection circuit according to claim 2, it is characterised in that:
The relay both ends are parallel with resistance R4.
5. three-phase anti-misconnection circuit according to claim 1, it is characterised in that:
Resistance R3, resistance R2, resistance R1 are connected respectively between the three phase mains firewire and the three-phase wiring point.
6. three-phase anti-misconnection circuit according to claim 5, it is characterised in that:
The resistance R1 is equal with the resistance value between resistance R2 and resistance R3.
7. three-phase anti-misconnection circuit according to claim 2, it is characterised in that:
The relay is electromagnetic relay.
8. three-phase anti-misconnection circuit according to claim 1, it is characterised in that:
The three phase mains is respectively three phase mains firewire R, three phase mains firewire S and three phase mains firewire T.
9. three-phase anti-misconnection circuit according to claim 1, it is characterised in that:
The three-phase anti-misconnection circuit output end connects the control module controlled the load of the three-phase anti-misconnection circuit.
10. a kind of air-conditioning, it is characterised in that: using any one three-phase anti-misconnection circuit of claim 1~9 as previously described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822207581.2U CN209448425U (en) | 2018-12-26 | 2018-12-26 | A kind of three-phase anti-misconnection circuit and corresponding air-conditioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822207581.2U CN209448425U (en) | 2018-12-26 | 2018-12-26 | A kind of three-phase anti-misconnection circuit and corresponding air-conditioning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209448425U true CN209448425U (en) | 2019-09-27 |
Family
ID=68016314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822207581.2U Active CN209448425U (en) | 2018-12-26 | 2018-12-26 | A kind of three-phase anti-misconnection circuit and corresponding air-conditioning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209448425U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111308229A (en) * | 2020-02-24 | 2020-06-19 | 广东美的暖通设备有限公司 | Drive control circuit and air conditioner |
| WO2023231755A1 (en) * | 2022-06-02 | 2023-12-07 | 合肥美的暖通设备有限公司 | Detection method and apparatus for phase wire and neutral wire reverse connection, storage medium and inverter air conditioner |
-
2018
- 2018-12-26 CN CN201822207581.2U patent/CN209448425U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111308229A (en) * | 2020-02-24 | 2020-06-19 | 广东美的暖通设备有限公司 | Drive control circuit and air conditioner |
| CN111308229B (en) * | 2020-02-24 | 2021-11-30 | 广东美的暖通设备有限公司 | Drive control circuit and air conditioner |
| WO2023231755A1 (en) * | 2022-06-02 | 2023-12-07 | 合肥美的暖通设备有限公司 | Detection method and apparatus for phase wire and neutral wire reverse connection, storage medium and inverter air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200401 Address after: 519080 202, floor 2, building B, headquarters base, No.2 Qianwan Second Road, Tangjiawan Town, Zhuhai City, Guangdong Province Patentee after: ZHUHAI TUOXIN TECHNOLOGY Co.,Ltd. Address before: 315191 Yinzhou District Province, Ningbo City, Jiang Shan town on the village of summer ho Patentee before: AUX AIR CONDITIONING Co.,Ltd. |
|
| TR01 | Transfer of patent right |