CN201311893Y

CN201311893Y - Controlling and protecting switch electric apparatus

Info

Publication number: CN201311893Y
Application number: CNU2008202170007U
Authority: CN
Inventors: 周荣
Original assignee: YANGZHOU XINLING ELECTRICAL APPARATUS CO Ltd
Current assignee: YANGZHOU XINLING ELECTRICAL APPARATUS CO Ltd
Priority date: 2008-11-24
Filing date: 2008-11-24
Publication date: 2009-09-16
Anticipated expiration: 2018-11-24

Abstract

The utility model relates to a controlling and protecting switch electric apparatus, belonging to the technical field of low voltage electric apparatus, which modifies the structure of prior controlling and protecting switch electric apparatus. The controlling and protecting switch electric apparatus is characterized by comprising an auxiliary accessory linkage operation mechanism, wherein one end of a rocker arm of the auxiliary accessory linkage operation mechanism is connected with a connecting frame at one end of the movable iron core in a permanent magnetic drive mechanism; the other end of the rocker arm in the auxiliary accessory linkage operation mechanism is contacted with a normal-open normal-close contactor group; one end of a fault rocker arm in the auxiliary accessory linkage operation mechanism is contacted with a fault push rod and the other end is contacted with a fault sleeve; and the fault sleeve clamps an alarm contactor. The controlling and protecting switch electric apparatus adopts self buttons to process the switching and closing operation and fault tripping of the state of switch electric apparatus, and can adopt panel control, remote control, interlock control and the like to process the switching and closing operation and fault tripping of the switch electric apparatus. The controlling and protecting switch electric apparatus has high practicality, improves the performance, safety and reliability of controlling and protecting switch electric apparatus.

Description

A kind of control and protection switch electrical equipment

Technical field

The utility model relates to a kind of control and protection switch electrical equipment, is control and the protection switch electrical equipment with auxiliary accessory combined operation mechanism, often comprise open, the auxiliary accessory of normally closed, failed operation mechanism, belong to the low voltage electrical apparatus technology field.

Background technology

General realize the respectively protection and the device for switching of control action have circuit breaker, A.C. contactor, thermal relay etc.; they are independently installed separately; be that different device for switching drives the different auxiliary accessory of setting respectively when satisfying as controls such as card control, Long-distance Control and interlockings.Also have now circuit breaker; A.C. contactor; thermal relay is combined into one; as control and protection switch electrical equipment; its structure mainly comprises base plate; pedestal; loam cake; main contactor on the pedestal; release; transmission mechanism; the control circuit of permanent mechanism driving mechanism and external power supply; control circuit is to have the control power circuit; the signal condition treatment circuit; the CPU master chip of control voltage sampling circuit is core and peripheral circuit thereof; and comprise high-speed CPU; the release output circuit; the three-phase current sample circuit; what be connected with high-speed CPU is fixed on the interactive keyboard liquid crystal operation mechanism that covers; the both-way communication interface; the joint pin of moving iron core one end connects the link that is provided with in the permanent mechanism driving mechanism, and the axle of arm bearing runs through link.The device for switching of this control that comprises circuit breaker, A.C. contactor, thermal relay and defencive function is as being provided with different auxiliary accessories respectively for satisfying controls such as card control, Long-distance Control and interlocking; the harmony of various appliance switches is inevitable poor in actual applications; higher level's switch motion can occur, subordinate's auxiliary accessory can't move and the unsteadiness of auxiliary accessory itself.

Summary of the invention

The purpose of this utility model provides a kind of control and protection switch electrical equipment; solve existing control and protection switch electrical equipment as that the harmony that different auxiliary accessories exists is set respectively is poor in order to satisfy controls such as card control, Long-distance Control and interlocking; higher level's switch motion; subordinate's auxiliary accessory can't move and the instable deficiency of auxiliary accessory, satisfies controls such as card control, Long-distance Control and interlocking by operating mechanism of the present utility model the divide-shut brake of device for switching and the state of fault dropout are moved.

The purpose of this utility model is achieved through the following technical solutions, a kind of control and protection switch electrical equipment, comprise base plate, pedestal, loam cake, main contactor on the pedestal, release, transmission mechanism, the control circuit of permanent mechanism driving mechanism and external power supply, control circuit is to have the control power circuit, the signal condition treatment circuit, the CPU master chip of control voltage sampling circuit is core and peripheral circuit thereof, and comprise high-speed CPU, the release output circuit, the three-phase current sample circuit, what be connected with high-speed CPU is fixed on the interactive keyboard liquid crystal operation mechanism that covers, the both-way communication interface, the joint pin of moving iron core one end connects the link that is provided with in the permanent mechanism driving mechanism, and the axle of arm bearing runs through link; The circuit that adapts of control permanent mechanism driving mechanism action in the control circuit; coil in the permanent mechanism driving mechanism connects the contacting controling circuit in the control circuit; sub-gate control circuit and under-voltage protecting circuit; it is characterized in that; auxiliary accessory combined operation mechanism also is set on the described pedestal; rocking arm one end in the auxiliary accessory combined operation mechanism connects the link of moving iron core one end in the permanent mechanism driving mechanism; rocking bar one end in the auxiliary accessory combined operation mechanism touches the normally-open normally-close sets of contacts; fault rocking bar one end in the auxiliary accessory combined operation mechanism touches the fault push rod; the other end of fault rocking bar touches the fault cover, the action of fault cover card Alarm contactor.

Auxiliary accessory combined operation mechanism comprises two parts, a part is made up of rocking arm, master connecting-rod, rocking bar and normally-open normally-close sets of contacts, one end of the hinged rocking arm of one end of master connecting-rod, the other end of rocking arm connects the link of moving iron core one end in the permanent mechanism driving mechanism, and the middle part and the keeper of rocking arm are hinged; The other end of master connecting-rod connects rocking bar; Another part is made of fault rocking bar, fault push rod and fault cover, and the fault rocking bar is hinged on the fixed head near center.

The utility model is to the improvement of existing control with the protection switch electrical structure; by auxiliary accessory combined operation mechanism is set; rocking arm one end in the auxiliary accessory combined operation mechanism connects the link of moving iron core one end in the permanent mechanism driving mechanism; rocking bar one end in the auxiliary accessory combined operation mechanism touches the normally-open normally-close sets of contacts; fault rocking bar one end in the auxiliary accessory combined operation mechanism touches the fault push rod; the other end of fault rocking bar touches the fault cover; the action of fault cover card Alarm contactor; the utility model not only can move by the state that the knob of self is threaded off to the divide-shut brake and the fault of device for switching state; can also satisfy card control; the state that control such as Long-distance Control and interlocking is threaded off to the divide-shut brake and the fault of device for switching moves; the utlity model has very strong practicality, improved the performance and the security reliability of control and protection switch electrical equipment.

Description of drawings

Fig. 1 is the main TV structure schematic diagram of the utility model part-structure and annex combined operation mechanism;

Fig. 2 is the plan structure schematic diagram of the utility model part-structure and annex combined operation mechanism;

Among the figure, 1 electromagnet, 2 links, 3 rocking bars, 4 master connecting-rods, 5 rocking arms, 6 keepers, 7 knobs, 8 fixed heads, 9 fault covers, 10 fault rocking bars, 11 top boards, 12 normally-open normally-close sets of contacts, 13 fault alarm contacts, 14 short-circuit alarming contacts, 15 normally open contacts, 16 fault push rods, 17 fault releases, 18 short-circuit releases.

Embodiment

Further specify the utility model in conjunction with the accompanying drawings and embodiments; as Fig. 1; shown in 2; the utility model is the improvement on existing control and protection switch electrical structure basis; auxiliary accessory combined operation mechanism is set on pedestal; Rocker arm 5 one end in the auxiliary accessory combined operation mechanism connects the link 2 of moving iron core one end of electromagnet 1 in the permanent mechanism driving mechanism; rocking bar 3 one ends in the auxiliary accessory combined operation mechanism touch normally-open normally-close sets of contacts 12; fault rocking bar 10 1 ends in the auxiliary accessory combined operation mechanism touch fault push rod 16; the other end of fault rocking bar 10 touches fault cover 9, the 9 card Alarm contactor actions of fault cover.As shown in Figure 1, auxiliary accessory combined operation mechanism comprises two parts, a part is made up of Rocker arm 5, master connecting-rod 4, rocking bar 3 and normally-open normally-close sets of contacts 12, one end of the hinged Rocker arm 5 of one end of master connecting-rod 4; other end of Rocker arm 5 connects the link 2 of moving iron core one end of electromagnet 1 in the permanent mechanism driving mechanism, and the middle part of Rocker arm 5 and keeper 6 are hinged; The other end of master connecting-rod 4 connects rocking bar 3; As shown in Figure 2, another part is made of fault rocking bar 10, fault push rod 16 and fault cover 9, and fault rocking bar 10 is hinged on the fixed head 8 near center.

Under the normal operating conditions: when knob 7 is in automatic control position, normally open contact 15 closures of control circuit, control circuit passes through electromagnet 1 adhesive controlled, drive link 2 motions, with keeper 6 is central point, and the Rocker arm 5 that connects link 2 rotates around keeper 6, does stroke motion and drive rocking bar 3 master connecting-rod 4 motions that the other end of Rocker arm 5 connects the time, rocking bar 3 is upwards taken exercises, and promotes normally-open normally-close sets of contacts 12 and carries out motion change.Rocking bar 3 is positioned in the accessory case, after the master connecting-rod action, promotes rocking bar 3 actions, thereby makes the action of normally-open normally-close sets of contacts.

Can be divided into two kinds of situations under the fail operation state:

1), generic failure (overload, phase shortage, three-phase imbalance etc.): when generic failure occurs, fault release 17 detects action (improper action) after the fault, promote fault push rod 16, fault push rod 16 makes 10 motions of fault rocking bar, fault rocking bar 10 promotes 9 actions of fault cover, make 13 actions of fault alarm contact send alarm signal, be that generic failure makes operating mechanism effect to fault alarm contact 13 send alarm signal, but the short-circuit release 18 that detects short trouble does not move, short trouble top board 11 not being worked makes the short-circuit alarming contact send signal, can be judged as generic failure in view of the above.

2), short trouble; When short trouble occurs, short-circuit release 18 actions, promote short trouble top board 11, short trouble top board 11 promotes fault rocking bar 10 and carries out the overtravel motion, fault rocking bar 10 promotes fault and overlaps the action of 9 overtravels, short-circuit alarming contact 14 and fault alarm contact 13 are moved simultaneously, send short-circuit alarming signal and failure alarm signal simultaneously.

Claims

1, a kind of control and protection switch electrical equipment, comprise base plate, pedestal, loam cake, main contactor on the pedestal, release, transmission mechanism, the control circuit of permanent mechanism driving mechanism and external power supply, control circuit is to have the control power circuit, the signal condition treatment circuit, the CPU master chip of control voltage sampling circuit is core and peripheral circuit thereof, and comprise high-speed CPU, the release output circuit, the three-phase current sample circuit, what be connected with high-speed CPU is fixed on the interactive keyboard liquid crystal operation mechanism that covers, the both-way communication interface, the joint pin of moving iron core one end connects the link that is provided with in the permanent mechanism driving mechanism, and the axle of arm bearing runs through link; The circuit that adapts of control permanent mechanism driving mechanism action in the control circuit; coil in the permanent mechanism driving mechanism connects the contacting controling circuit in the control circuit; sub-gate control circuit and under-voltage protecting circuit; it is characterized in that; auxiliary accessory combined operation mechanism also is set on the described pedestal; rocking arm one end in the auxiliary accessory combined operation mechanism connects the link of moving iron core one end in the permanent mechanism driving mechanism; rocking bar one end in the auxiliary accessory combined operation mechanism touches the normally-open normally-close sets of contacts; fault rocking bar one end in the auxiliary accessory combined operation mechanism touches the fault push rod; the other end of fault rocking bar touches the fault cover, the action of fault cover card Alarm contactor.

2, a kind of control according to claim 1 and protection switch electrical equipment, it is characterized in that, auxiliary accessory combined operation mechanism comprises two parts, a part is made up of rocking arm, master connecting-rod, rocking bar and normally-open normally-close sets of contacts, one end of the hinged rocking arm of one end of master connecting-rod; the other end of rocking arm connects the link of moving iron core one end in the permanent mechanism driving mechanism, and the middle part and the keeper of rocking arm are hinged; The other end of master connecting-rod connects rocking bar; Another part is made of fault rocking bar, fault push rod and fault cover, and the fault rocking bar is hinged on the fixed head near center.