CN201075832Y - Auxiliary power source of combination switch - Google Patents
Auxiliary power source of combination switch Download PDFInfo
- Publication number
- CN201075832Y CN201075832Y CNU2007200551052U CN200720055105U CN201075832Y CN 201075832 Y CN201075832 Y CN 201075832Y CN U2007200551052 U CNU2007200551052 U CN U2007200551052U CN 200720055105 U CN200720055105 U CN 200720055105U CN 201075832 Y CN201075832 Y CN 201075832Y
- Authority
- CN
- China
- Prior art keywords
- power transformer
- circuit
- combination switch
- inductance coil
- winding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000004804 winding Methods 0.000 claims abstract description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 5
- 230000001939 inductive effect Effects 0.000 abstract 5
- 238000010891 electric arc Methods 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model discloses a combination switch assistant power aiming at providing a combination switch assistant power which can still work normally when a power supply circuit has a phase failure or a zero wire. The utility model also includes an input circuit and an inductive choke. The input circuit includes three capacitances. The three capacitances are connected in a triangle and are connected with three-phase powers VA, VB and VC of an electric network; wherein, two phases are connected with a primary stage of a power transformer through the inductive choke. The inductive choke is a double-winding loop with an iron core. The two ends of a primary loop of the power transformer are respectively connected with one winding of the inductive choke. The three-phase powers are input into a primary winding of the power transformer through the inductive choke after coupled and overlapped by the three capacitances. The utility model can be widely applied to the technical field of combination switch.
Description
Technical field
The utility model relates to a kind of combination switch accessory power supply.
Background technology
Because magnetic latching relay and A.C. contactor are in operation and usually are subjected to the influence of reactance factor in circuit or the load, main contact the time is easy to generate electric arc inevitably in a deciliter action, this electric arc gently then damages the contact and causes switch deciliter bad, reduces the reliability and the useful life of equipment; Heavy then cause the arc short circuit accident, jeopardize equipment and personal safety.The birth of combination switch has solved this problem effectively, make the use of combination switch day by day expand, but, because the present accessory power supply of combination switch is on the market taken from the single-phase or two-phase power supply of electrical network mostly, in power supply circuits generation phase shortage or disconnected zero time, the accessory power supply of combination switch will interrupt like this, and combination switch is with regard to cisco unity malfunction, therefore, combination switch accessory power supply of the prior art exists in power supply circuits generation phase shortage or the disconnected defective of cisco unity malfunction zero time.
The utility model content
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, provides a kind of at power supply circuits generation phase shortage or disconnected combination switch accessory power supply that still can operate as normal zero time.
The technical scheme that the utility model adopted is: the utility model comprises power transformer, full-wave rectifying circuit, filter circuit, + 5V voltage-stabilizing output circuit, + 12V output circuit, it also comprises input circuit and inductance coil, described input circuit comprises three electric capacity, described three electric capacity connections triangular in shape and with electrical network three phase mains VA, VB, VC connects, wherein two-phase is connected with the elementary of described power transformer by described inductance coil, described inductance coil is the double winding coil that has iron core, each is connected the primary coil two ends of described power transformer with a winding of described inductance coil, three phase mains is imported the elementary winding of described power transformer via three capacitively coupleds stack back by described inductance coil, exports described full-wave rectifying circuit to by described power transformer secondary, filter circuit, + 5V voltage-stabilizing output circuit, + 12V output circuit.
The beneficial effects of the utility model are: because the utility model also comprises input circuit and inductance coil, described input circuit comprises three electric capacity, described three electric capacity connections triangular in shape and with electrical network three phase mains VA, VB, VC connects, wherein two-phase is connected with the elementary of described power transformer by described inductance coil, described inductance coil is the double winding coil that has iron core, each is connected the primary coil two ends of described power transformer with a winding of described inductance coil, three phase mains is imported the elementary winding of described power transformer via three capacitively coupleds stack back by described inductance coil, so the utlity model has in power supply circuits generation phase shortage or disconnected advantage that still can operate as normal zero time.
Description of drawings
Fig. 1 is the utility model electrical block diagram.
Embodiment
As shown in Figure 1, the utility model comprises power transformer, full-wave rectifying circuit, filter circuit, + 5V voltage-stabilizing output circuit, + 12V output circuit, it is characterized in that: it also comprises input circuit 1 and inductance coil 2, described input circuit 1 comprises three electric capacity, described three electric capacity connections triangular in shape and with electrical network three phase mains VA, VB, VC connects, wherein two-phase is connected with the elementary of described power transformer by described inductance coil 2, described inductance coil 2 is the double winding coils that have iron core, each is connected the primary coil two ends of described power transformer with a winding of described inductance coil 2, three phase mains is via the elementary windings of three capacitively coupleds stack back by the described power transformer of described inductance coil 2 inputs, exports described full-wave rectifying circuit to by described power transformer secondary, filter circuit, + 5V voltage-stabilizing output circuit, + 12V output circuit.
Claims (1)
1. the accessory power supply of a combination switch, it comprises power transformer, full-wave rectifying circuit, filter circuit, + 5V voltage-stabilizing output circuit, + 12V output circuit, it is characterized in that: it also comprises input circuit (1) and inductance coil (2), described input circuit (1) comprises three electric capacity, described three electric capacity connections triangular in shape and with electrical network three phase mains VA, VB, VC connects, wherein two-phase is connected with the elementary of described power transformer by described inductance coil (2), described inductance coil (2) is the double winding coil that has iron core, each is connected the primary coil two ends of described power transformer with a winding of described inductance coil (2), three phase mains is via the elementary windings of three capacitively coupleds stack back by the described power transformer of described inductance coil (2) input, exports described full-wave rectifying circuit to by described power transformer secondary, filter circuit, + 5V voltage-stabilizing output circuit, + 12V output circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200551052U CN201075832Y (en) | 2007-08-02 | 2007-08-02 | Auxiliary power source of combination switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200551052U CN201075832Y (en) | 2007-08-02 | 2007-08-02 | Auxiliary power source of combination switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201075832Y true CN201075832Y (en) | 2008-06-18 |
Family
ID=39521089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200551052U Expired - Fee Related CN201075832Y (en) | 2007-08-02 | 2007-08-02 | Auxiliary power source of combination switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201075832Y (en) |
-
2007
- 2007-08-02 CN CNU2007200551052U patent/CN201075832Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080618 Termination date: 20100802 |