CN200959581Y - Electronic starting circuit of single-phase asynchronous motor - Google Patents
Electronic starting circuit of single-phase asynchronous motor Download PDFInfo
- Publication number
- CN200959581Y CN200959581Y CN 200620107876 CN200620107876U CN200959581Y CN 200959581 Y CN200959581 Y CN 200959581Y CN 200620107876 CN200620107876 CN 200620107876 CN 200620107876 U CN200620107876 U CN 200620107876U CN 200959581 Y CN200959581 Y CN 200959581Y
- Authority
- CN
- China
- Prior art keywords
- control circuit
- resistance
- diode
- power end
- voltage comparator
- 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
Images
Landscapes
- Control Of Ac Motors In General (AREA)
Abstract
The utility model relates to an electronic starting circuit for single-phase asynchronous motor which consists of an electromagnetic relay (K), the electromagnetic relay (K) is arranged to control a control circuit (1) for pulling in and breaking of the relay (K), the two output terminals thereof is respectively connected with two ends (11, 12) of the relay#GB001s (K) coil, two ends of the electric motor#GB001s main winding (L1) are respectively connected with two ac power#GB001s terminals (L, N), two branch circuits are in parallel connection between one end (M) of the electrical motor#GB001s auxiliary winding (L2) and ac power#GB001s terminals (L), one branch circuit thereof is connected with an inductance (L3) in series. The utility model inhibits the instantaneous current generated by a capacitor (C7) through the relay#GB001s (K) front aperture contacts when the relay (K) pulls in due to the inductance (L3) in series connection arranged in the circuit which is provided with the capacitor (C7) and the relay#GB001s (K) front aperture contacts, the relay#GB001s electric life is improved; meanwhile, the utility model omits a power transformer, such a structure can reduce the electric motor starting circuit#GB001s volume and lower the cost thereof.
Description
Technical field
The utility model relates to a kind of starting circuit of single phase asynchronous motor, relates in particular to a kind of employing relay as executive component, is used to have the electron type starting circuit of the monopole asynchronous motor that moves capacitor and start capapcitor.
Background technology
For the electronic starting circuit that adopts relay as the monopole asynchronous motor of executive component, the electrical endurance of relay is vital.Especially the monopole asynchronous motor of capacitor start capacitor operating in case relay contact is bonding, can damages start capapcitor even can damage motor.In this type of former electronic starting circuit, after being connected in series, the make contact of start capapcitor and relay is connected in parallel with the operation capacitor of motor again.As promptly being to have adopted above-mentioned mode of connection in the Chinese patent literature 200510104256.8 disclosed " starting method of load motor ".The start capapcitor here also claims the starting element of motor.As shown in Figure 3, L1 and L2 are respectively motor main winding and auxiliary winding, when motor starting, and the relay K adhesive, the make contact of relay K is connected in parallel in operation capacitor C7 with start capapcitor C6.Because operation capacitor C7 is a little earlier in start capapcitor C6 energising, and the initial voltage of start capapcitor C6 is 0, the transient process of capacitor C7 by start capapcitor C6 discharge at this moment can occur moving.According to the residing phase place difference of the moment AC power of relay K adhesive, the discharging current instantaneous value of above-mentioned operation capacitor C7 may be very big, the flow through contact of relay K of this discharging current might make the contact of relay K bonding, causes start capapcitor even motor to damage then.
Summary of the invention
The purpose of this utility model is that to solve with the relay be the contact bonding technical problem easily of electronic starting circuit repeat circuit of monopole asynchronous motor that is used to have operation capacitor and start capapcitor of executive component, a kind of long service life is provided, safe and reliable, and do not need power transformer, the monopole asynchronous motor electronic starting circuit that volume is little, cost is low.
Above-mentioned purpose of the present utility model is solved by following technical proposals: a kind of electronic starting circuit of monopole asynchronous motor, comprise an electromagnetic type relay K, be used to control the control circuit 1 of described relay K adhesive and disjunction, two outputs 11 of control circuit 1,12 succeed the coil two ends of electrical equipment K respectively, motor main winding L1 two ends meet two AC power end L respectively, N, between the end M of motor auxiliary winding L2 and AC power end L, be connected in parallel to two branch roads, wherein a branch road includes operation capacitor C7, another branch road includes the one pair of make contact and the start capapcitor C6 of the relay K that is connected in series, another termination AC power end N of motor auxiliary winding L2, described at motor auxiliary winding L2 an end M and AC power end L between a branch road in two branch roads that are connected in parallel also be connected in series with inductance L 3.When motor starting, control circuit 1 makes the relay K adhesive, and after motor starting finished, control circuit 1 made the relay K disjunction.When the relay K adhesive, can move the transient process of capacitor C7 by the make contact discharge of start capapcitor C6, inductance L 3 and the relay K of series connection.Because inductance L 3 is series at the discharge loop of above-mentioned operation capacitor C7, the peak value of the discharging current of operation capacitor C7 can be inhibited, and the contact endurance of relay K is improved.Usually relay connect and during disjunction inductive load its connection and breaking capacity to descend, but add connection and the breaking capacity that inductance L 3 instead can improve relay K here, this is a kind of special situation.In addition, because the inductance value of inductance L 3 selects lessly, under work frequency, the reactance value of inductance L 3 is much smaller than the reactance value of start capapcitor C6 and operation capacitor C7, and it is very little that therefore series connection inserts 3 pairs of excellent start performance influences of inductance L.Because usually start capapcitor also claims the starting element of monopole asynchronous motor, so start capapcitor C6, inductance L 3 here, discharge resistance R13 three has formed the starting element of motor.
As preferably, between the end M of motor auxiliary winding L2 and AC power end L, be connected with operation capacitor C7, be connected in parallel with operation capacitor C7 after one pair of make contact three of inductance L 3, start capapcitor C6 and relay K is connected in series, discharge resistance R13 and start capapcitor C6 are connected in parallel.
As preferably, between the end M of motor auxiliary winding L2 and AC power end L, be connected with operation capacitor C7, one pair of make contact three of inductance L 3, start capapcitor C6 and relay K back that is connected in series is connected in parallel with operation capacitor C7, and discharge resistance R13 is connected in parallel in the series circuit that both are connected in series and by inductance L 3, start capapcitor C6.
As preferably, one power end 13 of control circuit 1 passes through fuse or directly is connected with AC power end L, another power end 14 of control circuit 1 passes through fuse or directly is connected with AC power end N, comprise a semiconductor element V with three exits in the control circuit 1, the end of described semiconductor element V is connected with the power end 14 of control circuit 1, described semiconductor element V has an end to be connected with the output 12 of control circuit 1 in addition or is connected with the output 12 of control circuit 1 by diode, with the series circuit of diode or directly be connected with the power end 13 of control circuit 1, the remainder of control circuit 1 is by resistance by resistance or resistance for the output 11 of control circuit 1, electric capacity and semiconductor device are formed.
As preferably, one power end 13 of control circuit 1 passes through fuse or directly is connected with AC power end L, another power end 14 of control circuit 1 passes through fuse or directly is connected with AC power end N, comprise a semiconductor element V with three exits in the control circuit 1, the end of described semiconductor element V is connected with the power end 14 of control circuit 1, described semiconductor element V has an end to be connected with the output 12 of control circuit 1 in addition or is connected with the output 12 of control circuit 1 by diode, with the series circuit of diode or directly be connected with the power end 13 of control circuit 1, the remainder of control circuit 1 is by resistance by inductance or inductance for the output 11 of control circuit 1, electric capacity and semiconductor device are formed.
As preferably, the power end 13 of control circuit 1 passes through resistance or inductance or directly is connected with the output 11 of control circuit 1 and an end of capacitor C 1, the other end of capacitor C 1 is connected with diode D1 negative pole and diode D2 positive pole, diode D2 negative pole connects voltage stabilizing didoe D3 negative pole, voltage comparator A1, one end of the positive power source terminal of A2 and resistance R 3, the other end of resistance R 3 is connected with inverting input and the voltage stabilizing didoe D4 negative pole of voltage comparator A1, the end M of motor auxiliary winding L2 is connected with an end of voltage comparator A1 normal phase input end and resistance R 4 with the series circuit of diode D8 by resistance R 6, the other end of resistance R 4, diode D1 and voltage stabilizing didoe D3, the positive pole of D4 is connected with the power end 14 of control circuit 1, capacitor C 3 is in parallel with resistance R 4, the output of voltage comparator A1 is connected with the inverting input of voltage comparator A2 and an end of capacitor C 4 by diode D5, the other end of capacitor C 4 is connected with the power end 14 of control circuit 1, the output of voltage comparator A2 is connected with the control utmost point of controllable silicon V by resistance R 10, the anode of controllable silicon V is connected with the output 12 of control circuit 1, the negative electrode of controllable silicon V and voltage comparator A1, the negative power end of A2 is connected with the power end 14 of control circuit 1.
As preferably, one end of capacitor C 1 passes through resistance or inductance or directly is connected with the power end 13 of control circuit 1, by diode or directly be connected with the output 11 of control circuit 1, the other end of capacitor C 1 and diode D1 positive pole, diode D2 negative pole connects, the anodal voltage stabilizing didoe D3 positive pole that connects of diode D2, voltage comparator A1, one end of the negative power end of A2 and resistance R 3, the other end of resistance R 3 is connected with inverting input and the voltage stabilizing didoe D4 positive pole of voltage comparator A1, the end M of motor auxiliary winding L2 is connected with an end of voltage comparator A1 normal phase input end and resistance R 4 with the series circuit of diode D8 by resistance R 6, the other end of resistance R 4, diode D1 and voltage stabilizing didoe D3, the negative pole of D4 is connected with the power end 14 of control circuit 1, capacitor C 3 is in parallel with resistance R 4, the output of voltage comparator A1 is connected with the inverting input of voltage comparator A2 and an end of capacitor C 4 by diode D5, the other end of capacitor C 4 is connected with the power end 14 of control circuit 1, the output of voltage comparator A2 is connected with the control utmost point of bidirectional triode thyristor V by resistance R 10, the T1 utmost point of bidirectional triode thyristor V and voltage comparator A1, the positive power source terminal of A2 is connected with the power end 14 of control circuit 1, and the T2 utmost point of bidirectional triode thyristor V passes through diode or directly is connected with the output 12 of control circuit 1.
The beneficial effects of the utility model are: owing to add the inductance L 3 that is connected in series in the loop at the make contact place of moving capacitor C7 and relay K, operation capacitor C7 has improved the electrical endurance of relay by the current instantaneous value of the make contact discharge of relay K when having suppressed the relay K adhesive; The resistance of control circuit 1, electric capacity and semiconductor device part are made integrated circuit or thick film circuit easily, and simultaneously, the utility model does not adopt power transformer, and the volume of motor start circuit is little, cost is low so can make.
Description of drawings
Fig. 1 is a kind of circuit connection diagram of the present utility model.
Fig. 2 is another circuit connection diagram of the present utility model.
Fig. 3 is the partial circuit connection layout of original monopole asynchronous motor electronic starting circuit.
Among the figure: 1. control circuit, 11,12. control circuit outputs, 13,14. control circuit power ends, K. relay, L1. motor main winding, L2. motor auxiliary winding, L., N. AC power end.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: as Fig. 1, present embodiment comprises an electromagnetic type relay K, be used to control the control circuit 1 of described relay K adhesive and disjunction, two outputs 11 of control circuit 1,12 succeed the coil two ends of electrical equipment K respectively, two power ends 13 of control circuit 1,14 meet two AC power end L respectively, N, motor main winding L1 two ends meet two AC power end L respectively, N, between the end M of motor auxiliary winding L2 and AC power end L, be connected to operation capacitor C7, inductance L 3, after being connected in series, one pair of make contact three of start capapcitor C6 and relay K is connected in parallel with operation capacitor C7, discharge resistance R13 and start capapcitor C6 are connected in parallel, another termination AC power end N of motor auxiliary winding L2.Control circuit 1 is by resistance, electric capacity, diode, voltage comparator A1, A2 and controllable silicon V form, AC power end L is connected with the output 11 of control circuit 1 and an end of capacitor C 1 by resistance R 0, the other end of capacitor C 1 is connected with diode D1 negative pole and diode D2 positive pole, resistance R 1 is in parallel with capacitor C 1, diode D2 negative pole is connected with AC power end N by capacitor C 2, by resistance R 2 and voltage stabilizing didoe D3 negative pole, voltage comparator A1, the positive power source terminal of A2, one end of the negative pole of diode D6 and D7 and resistance R 3 connects, the other end of resistance R 3 is connected with inverting input and the voltage stabilizing didoe D4 negative pole of voltage comparator A1, the end M of motor auxiliary winding L2 is connected with diode D8 is anodal by resistance R 6, diode D8 negative pole and voltage comparator A1 normal phase input end, one end of diode D6 positive pole and resistance R 4 connects, the other end of resistance R 4, diode D1 and voltage stabilizing didoe D3, the positive pole of D4 meets AC power end N, capacitor C 3 is in parallel with resistance R 4, the output of voltage comparator A1 is connected with diode D5 is anodal, diode D5 negative pole and diode D7 positive pole, one end of the inverting input of voltage comparator A2 and capacitor C 4 connects, another termination AC power end N of capacitor C 4, resistance R 5 is in parallel with diode D7, the normal phase input end of voltage comparator A2 meets voltage comparator A1 by resistance R 7, the positive power source terminal of A2, connect the output of voltage comparator A2 by resistance R 9, meet AC power end N by resistance R 8, the output of voltage comparator A2 connects the control utmost point of controllable silicon V by resistance R 10, the output 12 of the anode connection control circuit 1 of controllable silicon V, the negative electrode of controllable silicon V and voltage comparator A1, the negative power end of A2 is connected with AC power end N, and capacitor C 5 two ends are the output 11 of connection control circuit 1 respectively, 12.Resistance R 0, R1, R2, capacitor C 1, C2, diode D1, D2 and voltage stabilizing didoe D3 constitute the power circuit of control circuit 1, voltage stabilizing didoe D3 two ends output low-voltage regulated power supply.After the energized, because the initial voltage at capacitor C 4 two ends is 0 in the control circuit, voltage comparator A2 exports high level, controllable silicon V conducting, and the relay K adhesive makes inductance L 3 and starting capacitance C6 be connected in series back and operation capacitor C7 connection in parallel.After rotating speed of motor raises, the end M voltage of motor auxiliary winding L2 rises, by resistance R 4, R6, the step-down rectifying circuit that diode D6, D8 and capacitor C 3 are formed, the voltage of voltage comparator A1 normal phase input end is raise, when this voltage is elevated to voltage above voltage stabilizing didoe D4, voltage comparator A1 output becomes high level, and make voltage comparator A2 output low level by diode D5, controllable silicon V ends, make relay K discharge inductance L 3 and start capapcitor C6 and power supply disjunction.Resistance R 5, diode D7 is the element that discharges and recharges of capacitor C 4.Because the existence of inductance L 3, when the relay K adhesive, issuable transient high-current by the relay K contact is suppressed, and the life-span of relay K is improved.Here semiconductor device V is a controllable silicon.
Embodiment 2: as Fig. 2, all the other are identical with embodiment 1 except that the connection of control circuit 1 and discharge resistance R13 for present embodiment.Discharge resistance R13 is connected in parallel in the series circuit that both are connected in series and by inductance L 3, start capapcitor C6.Control circuit 1 is by resistance, electric capacity, diode, voltage comparator A1, A2 and bidirectional triode thyristor V form, AC power end L is by resistance R 0 and diode D9 negative pole, diode D11 positive pole, one end of capacitor C 1 connects, capacitor C 1 other end and diode D1 positive pole, diode D2 negative pole connects, resistance R 1 is in parallel with capacitor C 1, diode D2 is anodal to be connected with AC power end N by capacitor C 2, by resistance R 2 and voltage stabilizing didoe D3 positive pole, voltage comparator A1, the negative power end of A2, diode D6 and D7 positive pole, one end of resistance R 3 connects, the other end of resistance R 3 is connected with inverting input and the voltage stabilizing didoe D4 positive pole of voltage comparator A1, the end M of motor auxiliary winding L2 is by the negative pole of resistance R 6 with diode D6 and D8, one end of resistance R 12 connects, diode D8 is anodal to be connected with an end of voltage comparator A1 normal phase input end and resistance R 4, the other end of resistance R 4 and R12, diode D1 and voltage stabilizing didoe D3, the negative pole of D4 meets AC power end N, capacitor C 3 is in parallel with resistance R 4, the output terminating diode D5 negative pole of voltage comparator A1, anodal and the diode D7 negative pole of diode D5, one end of the inverting input of voltage comparator A2 and capacitor C 4 connects, another termination AC power end N of capacitor C 4, resistance R 5 is in parallel with diode D7, the normal phase input end of voltage comparator A2 meets voltage comparator A1 by resistance R 7, the negative power end of A2, connect the output of voltage comparator A2 by resistance R 9, meet AC power end N by resistance R 8, the output of voltage comparator A2 is connected with the control utmost point of bidirectional triode thyristor V and an end of resistance R 11 by resistance R 10.The other end of resistance R 11, the positive supply termination AC power end N of the T1 utmost point of bidirectional triode thyristor V and voltage comparator A1, A2.The T2 utmost point of bidirectional triode thyristor V is connected with the negative pole of the positive pole of diode D12 and diode D10.The positive pole of diode D9 and D10 is connected with the output 11 of control circuit 1 and an end of capacitor C 5, the output 12 of the negative pole connection control circuit 1 of diode D11 and D12 and the other end of capacitor C 5.Semiconductor element V in the present embodiment is a bidirectional triode thyristor, conducting when voltage comparator A2 output is low level, and at this moment alternating voltage is through being added on the coil of relay K after full-wave rectification and the filtering.Resistance R 4, R6, R12, capacitor C 3, diode D6, D8 form step-down rectifying circuit, the voltage signal of the end M of motor auxiliary winding L2 are received the positive input of voltage comparator A1.All the other are with embodiment 1.
Claims (6)
1. monopole asynchronous motor electronic starting circuit, comprise an electromagnetic type relay (K), be used to control the control circuit (1) of (K) adhesive of described relay and disjunction, two outputs (11 of control circuit (1), 12) succeed the coil two ends of electrical equipment (K) respectively, motor main winding (L1) two ends meet two AC power end (L respectively, N), between the end (M) of motor auxiliary winding (L2) and AC power end (L), be connected in parallel to two branch roads, wherein a branch road includes operation capacitor (C7), another branch road includes the one pair of make contact and the start capapcitor (C6) of the relay (K) that is connected in series, another termination AC power end (N) of motor auxiliary winding (L2) is characterized in that: described at motor auxiliary winding (L2) an end (M) and AC power end (L) between a branch road in two branch roads that are connected in parallel also be connected in series with inductance (L3).
2. monopole asynchronous motor electronic starting circuit according to claim 1, it is characterized in that: between the end (M) of motor auxiliary winding (L2) and AC power end (L), be connected with operation capacitor (C7), be connected in parallel with operation capacitor (C7) after one pair of make contact three of inductance (L3), start capapcitor (C6) and relay (K) is connected in series, discharge resistance (R13) is connected in parallel with start capapcitor (C6).
3. monopole asynchronous motor electronic starting circuit according to claim 1, it is characterized in that: between the end (M) of motor auxiliary winding (L2) and AC power end (L), be connected with operation capacitor (C7), one pair of make contact three of inductance (L3), start capapcitor (C6) and relay (K) back that is connected in series is connected in parallel with operation capacitor (C7), and discharge resistance (R13) is connected in parallel in the series circuit that both are connected in series and by inductance (L3), start capapcitor (C6).
4. according to claim 1 or 2 or 3 described monopole asynchronous motor electronic starting circuits, it is characterized in that: a power end (13) of described control circuit (1) passes through fuse or directly is connected with AC power end (L), another power end (14) of described control circuit (1) passes through fuse or directly is connected with AC power end (N), comprise a semiconductor element (V) with three exits in the described control circuit (1), one end of described semiconductor element (V) is connected with the power end (14) of control circuit (1), described semiconductor element (V) has an end directly to be connected with the output (12) of control circuit (1) in addition or is connected with the output (12) of control circuit (1) by diode, the output (11) of control circuit (1) directly is connected with the power end (13) of control circuit (1), or is connected with the power end (13) of control circuit (1) with the series circuit of diode by resistance or resistance; Perhaps, the output (11) of control circuit (1) is connected with the power end (13) of control circuit (1) with the series circuit of diode by inductance or inductance, and the remainder of control circuit (1) is made up of resistance, electric capacity and semiconductor device.
5. monopole asynchronous motor electronic starting circuit according to claim 4, it is characterized in that: the power end (13) of control circuit (1) directly is connected with an end of the output (11) of control circuit (1) and electric capacity (C1), or be connected with the output (11) of control circuit (1) and an end of electric capacity (C1) by resistance or inductance, the other end of electric capacity (C1) is connected with diode (D1) negative pole and diode (D2) positive pole, diode (D2) negative pole connects voltage stabilizing didoe (D3) negative pole, voltage comparator (A1, one end of positive power source terminal A2) and resistance (R3), the other end of resistance (R3) is connected with the inverting input and voltage stabilizing didoe (D4) negative pole of voltage comparator (A1), one end (M) of motor auxiliary winding (L2) is connected with an end of voltage comparator (A1) normal phase input end and resistance (R4) with the series circuit of diode (D8) by resistance (R6), the other end of resistance (R4), diode (D1) and voltage stabilizing didoe (D3), (D4) positive pole is connected with the power end (14) of control circuit (1), electric capacity (C3) is in parallel with resistance (R4), the output of voltage comparator (A1) is connected with the inverting input of voltage comparator (A2) and an end of electric capacity (C4) by diode (D5), the other end of electric capacity (C4) is connected with the power end (14) of control circuit (1), the output of voltage comparator (A2) is connected with the control utmost point of controllable silicon (V) by resistance (R10), the anode of controllable silicon (V) is connected the negative electrode of controllable silicon (V) and voltage comparator (A1 with the output (12) of control circuit (1), A2) negative power end is connected with the power end (14) of control circuit (1).
6. monopole asynchronous motor electronic starting circuit according to claim 4, it is characterized in that: an end of electric capacity (C1) passes through resistance or inductance or directly is connected with the power end (13) of control circuit (1), by diode or directly be connected with the output (11) of control circuit (1), the other end of electric capacity (C1) and diode (D1) positive pole, diode (D2) negative pole connects, anodal voltage stabilizing didoe (D3) positive pole that connects of diode (D2), voltage comparator (A1, one end of negative power end A2) and resistance (R3), the other end of resistance (R3) is connected with the inverting input and voltage stabilizing didoe (D4) positive pole of voltage comparator (A1), one end (M) of motor auxiliary winding (L2) is connected with an end of voltage comparator (A1) normal phase input end and resistance (R4) with the series circuit of diode (D8) by resistance (R6), the other end of resistance (R4), diode (D1) and voltage stabilizing didoe (D3), (D4) negative pole is connected with the power end (14) of control circuit (1), electric capacity (C3) is in parallel with resistance (R4), the output of voltage comparator (A1) is connected with the inverting input of voltage comparator (A2) and an end of electric capacity (C4) by diode (D5), the other end of electric capacity (C4) is connected with the power end (14) of control circuit (1), the output of voltage comparator (A2) is connected with the control utmost point of bidirectional triode thyristor (V) by resistance (R10), (T1) utmost point of bidirectional triode thyristor (V) and voltage comparator (A1, A2) positive power source terminal is connected with the power end (14) of control circuit (1), and (T2) utmost point of bidirectional triode thyristor (V) passes through diode or directly is connected with the output (12) of control circuit (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620107876 CN200959581Y (en) | 2006-09-21 | 2006-09-21 | Electronic starting circuit of single-phase asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620107876 CN200959581Y (en) | 2006-09-21 | 2006-09-21 | Electronic starting circuit of single-phase asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200959581Y true CN200959581Y (en) | 2007-10-10 |
Family
ID=38786461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620107876 Expired - Fee Related CN200959581Y (en) | 2006-09-21 | 2006-09-21 | Electronic starting circuit of single-phase asynchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200959581Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104104277A (en) * | 2014-07-11 | 2014-10-15 | 常熟市天银机电股份有限公司 | Mutual inductance type non-contact current starter used for commercial refrigeration compressor motor |
| CN104104274A (en) * | 2014-07-11 | 2014-10-15 | 常熟市天银机电股份有限公司 | Mutual inductance contactless current starter for commercial refrigeration compressor motor |
| CN104113236A (en) * | 2014-07-11 | 2014-10-22 | 常熟市天银机电股份有限公司 | Mutual-inductance non-contact current starter for commercial refrigeration compressor motor |
| CN104113237A (en) * | 2014-07-11 | 2014-10-22 | 常熟市天银机电股份有限公司 | Mutual-inductance non-contact current starter for commercial refrigeration compressor motor |
| CN104113235A (en) * | 2014-07-11 | 2014-10-22 | 常熟市天银机电股份有限公司 | Mutual-inductance non-contact current starter for commercial refrigeration compressor motor |
| CN104579025A (en) * | 2015-01-27 | 2015-04-29 | 常熟市天银机电股份有限公司 | Non-power-consumption starter of commercial refrigeration compressor motor |
| CN104601051A (en) * | 2015-01-27 | 2015-05-06 | 常熟市天银机电股份有限公司 | Non-energy-consumption starter for motor of commercial refrigerating compressor |
-
2006
- 2006-09-21 CN CN 200620107876 patent/CN200959581Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104104277A (en) * | 2014-07-11 | 2014-10-15 | 常熟市天银机电股份有限公司 | Mutual inductance type non-contact current starter used for commercial refrigeration compressor motor |
| CN104104274A (en) * | 2014-07-11 | 2014-10-15 | 常熟市天银机电股份有限公司 | Mutual inductance contactless current starter for commercial refrigeration compressor motor |
| CN104113236A (en) * | 2014-07-11 | 2014-10-22 | 常熟市天银机电股份有限公司 | Mutual-inductance non-contact current starter for commercial refrigeration compressor motor |
| CN104113237A (en) * | 2014-07-11 | 2014-10-22 | 常熟市天银机电股份有限公司 | Mutual-inductance non-contact current starter for commercial refrigeration compressor motor |
| CN104113235A (en) * | 2014-07-11 | 2014-10-22 | 常熟市天银机电股份有限公司 | Mutual-inductance non-contact current starter for commercial refrigeration compressor motor |
| CN104579025A (en) * | 2015-01-27 | 2015-04-29 | 常熟市天银机电股份有限公司 | Non-power-consumption starter of commercial refrigeration compressor motor |
| CN104601051A (en) * | 2015-01-27 | 2015-05-06 | 常熟市天银机电股份有限公司 | Non-energy-consumption starter for motor of commercial refrigerating compressor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN200959581Y (en) | Electronic starting circuit of single-phase asynchronous motor | |
| CN113299505B (en) | Mixed current-limiting on-off direct current breaker | |
| CN1307798C (en) | Circuit arrangement for the reliable switching of electrical circuits | |
| CN201365201Y (en) | Input rectifying and filtering circuit of switch power supply | |
| CN211456991U (en) | High-power unit bypass device based on permanent magnet contactor | |
| CN102306933A (en) | Short-circuit current limiter with high reliability and method thereof | |
| CN111564830A (en) | Current limiting method of transformer current limiting device based on artificial zero-crossing current limiting | |
| CN104426137B (en) | Single- stage PFC circuit metal-oxide-semiconductor overvoltage crowbar | |
| CN115065039A (en) | Hybrid circuit breaker | |
| CN114759532A (en) | Self-charging cut-off direct current breaker and control method thereof | |
| CN2768305Y (en) | Noncontact motor starter circuit | |
| CN107634669A (en) | The power circuit and its control method of position-sensor-free permagnetic synchronous motor | |
| CN101154902A (en) | Starting circuit of single phase asynchronous motor | |
| CN2463637Y (en) | Variable voltage drive solenoid valve | |
| CN205407592U (en) | No -voltage quasi -resonance boost circuit | |
| CN112332692A (en) | High-frequency power supply inverter system with buffer circuit for electric precipitation | |
| CN201985532U (en) | Intelligent composite integrated switch | |
| CN2684451Y (en) | A high voltage bridge arm with multiple electric semiconductors in series connection with multiple windings alternately | |
| CN110808694A (en) | Zero-power-consumption electronic starter and starting system for single-phase motor | |
| CN203205844U (en) | Switching power supply overvoltage automatic protection circuit | |
| CN1889346A (en) | Fast charging device for superconducting coil current regulating switch | |
| CN2591070Y (en) | Straightway discharging water electromagnet for washing machine | |
| CN103236782A (en) | Anti-surge soft starting circuit of switching power supply | |
| CN213340005U (en) | Current limiting device of transformer | |
| CN216490214U (en) | Buffer circuit for bidirectional inverter and bidirectional inverter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |