CN206460936U - Jerk self-lock switch and automation equipment - Google Patents
Jerk self-lock switch and automation equipment Download PDFInfo
- Publication number
- CN206460936U CN206460936U CN201621453949.8U CN201621453949U CN206460936U CN 206460936 U CN206460936 U CN 206460936U CN 201621453949 U CN201621453949 U CN 201621453949U CN 206460936 U CN206460936 U CN 206460936U
- Authority
- CN
- China
- Prior art keywords
- relay
- jerk
- self
- switch
- contact
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Keying Circuit Devices (AREA)
Abstract
The utility model embodiment discloses a kind of jerk self-lock switch and automation equipment, and the jerk self-lock switch includes：Relay power, emergency stop switch, the first relay, the second relay, the 3rd relay and starting switch.In the utility model embodiment, jerk self-lock switch passes through the connection or disconnection between emergency stop switch and starting switch control relay power supply and relay, so as to switch the stationary contact contacted with the movable contact of relay, to realize when emergency stop switch disconnects the connection of relay power and relay, the relay deenergization connection being connected with automation equipment, and electricity on the relay can not be made again in the case where not disconnecting starting switch, reach the function of switch self-locking.
Description
Technical field
The utility model embodiment is related to field of circuit technology, more particularly to a kind of jerk self-lock switch and automation are set
It is standby.
Background technology
The development of automatic technology so that numerous automatic machines and equipments is applied to industry, agricultural, military affairs, medical treatment etc.
Field.Repeater's work industry can be replaced using automation equipment, or even be applicable to severe, dangerous working environment, from
And save manpower, reduce cost, improve operating efficiency, it is that people's life is brought conveniently.
It is safe and reliable to turn into the key element for evaluating automation equipment in automation equipment operation process.For example, industrial
The manipulator of production and application, its job area is larger, and relatively huge, heaviness, if it cannot be guaranteed that the security reliability of manipulator,
It is easy for the generation caused a serious accident.Therefore, by the control machine of jerk circuit in existing mechanical automation equipment
The work of equipment so that machinery equipment break down when can emergent stopping, so as to avoid the generation of major accident.
But, existing automation equipment is after jerk is released, you can work on, it is impossible to be really achieved the jerk of equipment
The security function of self-locking, it is therefore, still not safe and reliable enough.
Utility model content
The utility model embodiment provides a kind of jerk self-lock switch and automation equipment, is needing to enter equipment to realize
During row jerk, can jerk, and possess double locking function when equipment is restarted rapidly, so as to improve automation equipment security
Can, reduce accident potential.
In a first aspect, the utility model embodiment provides a kind of jerk self-lock switch, including：Relay power, jerk
Switch, the first relay, the second relay, the 3rd relay and starting switch；
The relay power is electrically connected by the emergency stop switch with first relay；
The relay power is also electrically connected with first relay and the second relay respectively by the starting switch
Connect；
Two movable contacts of first relay are normal with the 3rd normally opened contact of second relay and the 4th respectively
Closed contact is electrically connected, and the of the movable contact of first relay of the 3rd normally opened contact connection and first relay
Two normally opened contacts are electrically connected；
Two movable contacts of second relay respectively with the first normally-closed contact of first relay and described
The coil electrical connection of three relays, coil of first normally-closed contact also with second relay is electrically connected；
The electric signal that 3rd relay is exported according to second relay is switched on or switched off as the quiet of output end
Contact and movable contact.
Second aspect, the utility model embodiment provides a kind of automation equipment, including motor driver, the automation
Equipment also includes A.C. contactor and jerk self-lock switch as described above；
The main contacts of the A.C. contactor connects power supply and the motor driver respectively, for being connect according to the exchange
Control coil in tentaculum is powered or off-position, is switched on or switched off the motor driver and the power supply；
The auxiliary contact of the A.C. contactor connect the output end of the power supply and the jerk self-lock switch respectively, use
In make the control coil in the A.C. contactor be powered or power off.
The utility model embodiment provide a kind of jerk self-lock switch and automation equipment, the jerk self-lock switch by
At least three relays and relay power, emergency stop switch and starting switch composition, pass through emergency stop switch and starting switch control
Connection or disconnection between relay power and relay processed, so that switch the stationary contact contacted with the movable contact of relay, with
When emergency stop switch disconnects the connection between the relay and relay power of relay power connection, connect with automation equipment
The relay power-off connect, makes equipment jerk.And when equipment is restarted, if in the case of not releasing jerk and not disconnecting starting switch
Electricity on the relay that is connected with automation equipment can not be made again, the function of switch double locking is realized.The utility model is implemented
Example meets the jerk demand of equipment, improves the security performance of automation equipment, reduces accident potential, has reached abundant guarantee
The effect of the personal safety of operating personnel.
Brief description of the drawings
Figure 1A is a kind of structural representation for jerk self-lock switch that the utility model embodiment one is provided；
Figure 1B is the structural representation of the first relay in a kind of jerk self-lock switch that the utility model embodiment one is provided
Figure；
Fig. 1 C are the structural representations of the second relay in a kind of jerk self-lock switch that the utility model embodiment one is provided
Figure；
Fig. 2 is a kind of structural representation for jerk self-lock switch that the utility model embodiment two is provided；
Fig. 3 is a kind of structural representation for automation equipment that the utility model embodiment three is provided.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.It is understood that herein
Described specific embodiment is used only for explaining the utility model, rather than limits of the present utility model.Further need exist for
It is bright, for the ease of description, the part related to the utility model rather than entire infrastructure are illustrate only in accompanying drawing.
Embodiment one
Figure 1A is a kind of structural representation for jerk self-lock switch that the utility model embodiment is provided, and the jerk self-locking is opened
The jerk self-locking available for automation equipment is closed, as shown in Figure 1A, jerk self-lock switch 10 includes：Relay power VCC, jerk
Switch the 11, first relay 12, the second relay 13, the 3rd relay 14 and starting switch 15.Divide as illustrated in figures ib and 1 c
Not Wei the first relay 12 and the second relay 13 structural representation.Wherein, relay power VCC by emergency stop switch 11 with
First relay 12 is electrically connected；Relay power VCC also by starting switch 15 respectively with the first relay 12 and the second relay
Device 13 is electrically connected；The 3rd normally opened contact 133 and the 4th of two movable contacts of the first relay 12 respectively with the second relay 13
Normally-closed contact 134 is electrically connected, the movable contact of the first relay 12 of the 3rd normally opened contact 133 connection and the of the first relay 12
Two normally opened contacts 125 are electrically connected；The first normally-closed contact of two movable contacts of the second relay 13 respectively with the first relay 12
122 and the 3rd the coil 141 of relay 14 electrically connect, coil 131 of first normally-closed contact 122 also with the second relay 13 is electrically connected
Connect；The electric signal that 3rd relay 14 is exported according to the second relay 13 is switched on or switched off stationary contact and movable contact.
Exemplary, when automation equipment is in normal stop, emergency stop switch 11 is normally off, the first relay 12
Coil 121 cut-in relay power supply VCC, relay power VCC voltage is preferably+24V, now the first relay 12
The normally opened contact of movable contact and the first relay 12 is connected.Because starting switch 15 is off, therefore the second relay
13 and the 3rd relay 14 without plant-grid connection, now, the second relay 13 and the 3rd relay 14 are off-state.
When automation equipment normally starts, emergency stop switch 11 is in normally off, and starting switch 15 is closed, the first relay
The cut-in relay power supply VCC of coil 121 of device 12, two movable contacts of the first relay 12 and two of the first relay 12 are often
Contacting is opened, because the coil 131 of the second relay 13 is electrically connected with the first normally-closed contact 122 of the first relay 12, because
The coil 131 of this second relay 13 does not access power supply, then the movable contact of the second relay 13 is kept and the second relay 13
Normally-closed contact is electrically connected.Now, relay power VCC passes through the 4th normally closed of the second normally opened contact 125 and the second relay 13
The coil 141 of the 3rd relay is accessed in contact 134, the coil 141 of the 3rd relay 14 is powered.
When automation equipment breaks down or needs jerk in the course of the work, emergency stop switch 11 can be pressed, passes through urgency
Guard's valve 11 disconnects the connection between the first relay 12 and relay power VCC, now, the coil 121 of the first relay 12
Power-off, the movable contact of the first relay 12 recovers the electrical connection with the first relay normally-closed contact.Accordingly, relay power
VCC is electrically connected by the normally-closed contact 122 of starting switch 15 and first of closure with the coil 131 of the second relay 13, makes second
The movable contact of relay 13 is electrically connected with two normally opened contacts of the second relay 13, meanwhile, the coil 141 of the 3rd relay 14
It will disconnect and be in the electrical connection with relay power VCC, the 3rd relay 14 as the stationary contact of output end with movable contact
Off-state, if the 3rd relay 14 is DPDT or the electromagnetic relay of the single-pole double throw stationary contact can be normally opened touches
Point.
Under jerk state, in the case of starting switch 15 is not disconnected, when outwarding winding emergency stop switch 11 again, the first relay
12 coil 121 is electrically connected with relay power VCC again, and the movable contact of the first relay 12 connects normally opened contact.Due to second
Relay 13 is before emergency stop switch 11 is outwarded winding, and the 3rd normally opened contact 133 is closure state, and the first normally opened contact 123 connects again
After logical, relay power VCC the 3rd normally opened contacts 133 of meeting are electrically connected with the coil 131 of the second relay 13, make the second relay
13 continue the state that holding movable contact connects normally opened contact, and then relay power VCC can not give the coil 141 of the 3rd relay 14
Power supply, the coil 141 of the 3rd relay remains as off-position so that stationary contact is off with movable contact, if the 3rd
Relay 14 is DPDT or the electromagnetic relay of the single-pole double throw stationary contact can be normally opened contact, and now equipment is not opened
It is dynamic.After emergency is released, to restarting equipment, it is necessary to which first outwarding winding emergency stop switch 11 releases jerk, then by starting switch 15
State switches to halted state (disconnect starting switch 15) by starting state, the coil 131 of the second relay 13 disconnect with after
Appliances power source VCC electrical connection.Hereafter, being closed again starting switch 15 could continue normally to open automation equipment.
The present embodiment by the connection or disconnection between emergency stop switch and starting switch control relay power supply and relay,
So as to switching stationary contact contact with the movable contact of relay, with emergency stop switch the first relay of disconnection and relay power it
Between connection when, be connected with automation equipment relay power-off, make equipment jerk.And when equipment is restarted, if not releasing urgency
Stop and can not make again in the case of not disconnecting starting switch electricity on the relay that is connected with automation equipment, realize that switch is dual
The function of locking.The utility model embodiment meets the jerk demand of equipment, improves the security performance of automation equipment, drop
Low accident potential, has reached the effect of the personal safety of abundant guarantee operating personnel.
Embodiment two
Fig. 2 is a kind of structural representation for jerk self-lock switch that the utility model embodiment two is provided, and the present embodiment exists
It is optimized on the basis of above-described embodiment, it is preferred that increase by the 4th relay 16 in jerk self-lock switch 10.Such as Fig. 2
It is shown, it is in series with the 4th relay 16 between the relay 12 of emergency stop switch 11 and first；The coil 161 of 4th relay 16 connects
Emergency stop switch is connect, the stationary contact of the 4th relay 16 connects the coil 121 of the first relay 12.
Exemplary, if the 4th relay 16 is the electromagnetic relay of DPDT or single-pole double throw, the herein the 4th
The stationary contact of relay 16 is normally opened contact.When automation equipment is in normal stop, emergency stop switch 11 is normally off, the
The cut-in relay power supply VCC of coil 161 of four relays 16 so that the movable contact of the 4th relay 16 is contacted with normally opened contact leads
It is logical.The movable contact connection relay power VCC of 4th relay 16, so that the first relay electrically connected with the 4th relay 16
The coil 121 of device 12 is electrically connected with relay power VCC, two movable contacts and the first normally opened contact 123 of the first relay 12
Contacted with the second normally opened contact 125, now the coil 141 of the relay 14 of coil 131 and the 3rd of the second relay 13 does not have
Relay power VCC is connected, therefore so that the 3rd relay 14 is off.
When automation equipment normally starts, emergency stop switch 11 is in normally off, and starting switch 15 is closed, the 4th relay
State is identical when device 16, the first relay 12 and the second relay 13 are with normal stop, the 3rd relay 14 by second after
4th normally-closed contact 134 of electrical equipment 13 and the second normally opened contact 125 of the first relay 12 are electrically connected with relay power VCC,
So that the 3rd relay 14 is in the conduction state for the stationary contact and movable contact in conducting state, i.e. the 3rd relay 14,
If the 3rd relay 14 is DPDT or the electromagnetic relay of the single-pole double throw stationary contact can be normally opened contact.
When automation equipment breaks down in the course of work or needs jerk, emergency stop switch 11, emergency stop switch can be pressed
11 disconnect, now, and relay power VCC disconnects the electrical connection with the 4th relay 16, then makes the contact of the 4th relay 16
Disconnect, the coil of the first relay 12 disconnects relay power VCC so that the movable contact of the first relay 12 recovers
With the electrical connection of the normally-closed contact of the first relay 12.Accordingly, the coil 131 of the second relay 13 is electrically connected with relay power
Connect, the movable contact of the second relay 13 is electrically connected with two normally opened contacts of the second relay 13, and the 3rd relay 14
Coil 141 will disconnect the electrical connection with relay power VCC, and the 3rd relay 14 is off.
Under jerk state, in the case of starting switch 15 is not disconnected, when outwarding winding emergency stop switch 11 again, the 4th relay
16 and first relay 12 electrically connected again with relay power VCC, the first relay 12 connect its normally opened contact.Now,
The coil 131 of two relays 13 continues to keep electrically connecting with relay power VCC, so that the 3rd relay 14 can not be with relay
Device power supply VCC electrical connection, the 3rd relay 14 is off-state.Until disconnecting starting switch 15, the second relay 13 is set to break
The electrical connection with relay power VCC is opened, when closing starting switch again, the 3rd relay 14 could be turned on.
Optionally, the first relay 12, the second relay 13, the 3rd relay 14 and the 4th relay 16 are electromagnetism relays
Device.
Optionally, the first relay 12 and the second relay 13 are the electromagnetic relays that contact is double-point double-throw switch.
Optionally, the 3rd relay 14 and the 4th relay 16 can be the electromagnetism relays that contact is double-point double-throw switch
Device, can also be the electromagnetic relay that contact is single-pole double-throw switch (SPDT).
Specifically, electromagnetic relay is mainly made up of electromagnet, armature, spring, movable contact and stationary contact.When electromagnetism relay
The electromagnet coil of device have electric current by when, its armature will produce attraction so that the movable contact of relay connects with stationary contact
Touch；If conversely, in the magnet coil of electromagnetic relay during current vanishes, movable contact is disconnected with stationary contact.And DPDT
Electromagnetic relay, with two movable contacts and four stationary contacts, four stationary contacts include two normally opened contacts and two often again
Closed contact.For DPDT electromagnetic relay, when there is no the electric current to pass through in electromagnet coil, two movable contacts respectively with two
Normally-closed contact is contacted；When there is electric current to pass through in electromagnet coil, two movable contacts are contacted with two normally opened contacts respectively.Using
DPDT electromagnetic relay can respectively be controlled different in the case of two kinds that magnet coil has electric current and no electric current process
Circuit turn-on and cut-off.
The present embodiment is by increasing the 4th relay so that emergency stop switch 11 and starting switch 15 are mutually isolated, enter
One step improves the safety and reliability of jerk self-lock switch.
Embodiment three
Fig. 3 is a kind of structural representation for automation equipment that the utility model embodiment three is provided, to set automation
It is standby to realize jerk self-locking, jerk self-lock switch is configured with the automation equipment.As shown in figure 3, the automation equipment
20 include the jerk self-lock switch 10 that motor driver 21 and A.C. contactor 22 and the utility model embodiment are provided.Its
In, the main contacts of A.C. contactor 22 connects power supply AC and motor driver 21 respectively, for according in A.C. contactor 22
Control coil is powered or off-position, is switched on or switched off the motor driver 21 and power supply AC electrical connection；Motor driver
21 can be servo-driver.The auxiliary contact of A.C. contactor 22 connect the output of power supply AC and jerk self-lock switch 10 respectively
End, for making the control coil in A.C. contactor 22 be powered or power off.
Exemplary, when the emergency stop switch in jerk self-lock switch 10 is in closure state, starting switch, which is in, disconnects shape
During state, the output end of jerk self-lock switch 10 is not turned on, and causes the control coil of A.C. contactor 22 to be in off-position, so that
So that being off-state between motor driver 21 and power supply AC, automation equipment 20 is in inactive state；When jerk self-locking
When emergency stop switch and starting switch in switch 10 are in closure state, the output end conducting of jerk self-lock switch 10, exchange
Contactor 22 switches on power AC, causes the closing of contact of A.C. contactor, and motor driver 21 switches on power AC, driving automation
Equipment 20 works, so that automation equipment 20 is in normally-open state；When in the normal operating conditions of automation equipment 20
When lower, the emergency stop switch of jerk self-lock switch 10 is pressed so that emergency stop switch disconnects, and now starting switch is still in closed form
State, the output end of jerk self-lock switch 10 accordingly disconnects, and motor driver 21 is again off the electrical connection with power supply AC, and again
When outwarding winding emergency stop switch, due to the auto-lock function of jerk self-lock switch 10, motor driver can not still be connected with power supply AC.Should be certainly
Dynamicization equipment 10 for example can be industrial robot, producing line equipment etc..
Optionally, power supply AC is single phase poaer supply.Accordingly, the first auxiliary contact of A.C. contactor 22 and the single-phase electricity
The zero line electrical connection in source, the first output end of jerk self-lock switch 10 is electrically connected with the live wire of single phase poaer supply, jerk self-lock switch
10 the second output end is electrically connected with stating the second auxiliary contact of A.C. contactor 22.
Optionally, the circuit connecting relation of single phase poaer supply can also be：The first auxiliary contact and list of A.C. contactor 22
The live wire electrical connection of phase power supply, the second output end of the second auxiliary contact connection jerk self-lock switch 10 of A.C. contactor 22,
First output end of jerk self-lock switch 10 connects the zero line of single phase poaer supply.
Optionally, power supply AC is three phase mains.Accordingly, the first auxiliary contact of A.C. contactor 22 and three phase mains
First phase line is electrically connected, and the second auxiliary contact of A.C. contactor 22 connect the first output end of emergency stop switch 10, jerk self-locking
Second output end of switch 10 connects the second phase line of three phase mains.
The present embodiment in automation equipment by configuring the jerk self-lock switch that the utility model embodiment is provided so that
Automation equipment failure or when needing jerk can jerk, and the effect of self-locking is reached when not disconnecting after jerk starting switch
Really, the safety and reliability of automation equipment is further improved.
Note, above are only preferred embodiment of the present utility model and institute's application technology principle.Those skilled in the art's meeting
Understand, the utility model is not limited to specific embodiment described here, can carried out for a person skilled in the art various bright
Aobvious change, readjust and substitute without departing from protection domain of the present utility model.Therefore, although pass through above example
The utility model is described in further detail, but the utility model is not limited only to above example, is not departing from
In the case that the utility model is conceived, other more equivalent embodiments can also be included, and scope of the present utility model is by appended
Right determine.
Claims (10)
1. a kind of jerk self-lock switch, it is characterised in that including：Relay power, emergency stop switch, the first relay, second after
Electrical equipment, the 3rd relay and starting switch；
The relay power is electrically connected by the emergency stop switch with first relay；
The relay power is also electrically connected with first relay and the second relay respectively by the starting switch；
Two movable contacts of first relay are normally closed tactile with the 3rd normally opened contact of second relay and the 4th respectively
Point electrical connection, the movable contact of first relay of the 3rd normally opened contact connection and the second of first relay normal
Open contact electrical connection；
Two movable contacts of second relay respectively with the first normally-closed contact of first relay and the described 3rd after
The coil electrical connection of electrical equipment, coil of first normally-closed contact also with second relay is electrically connected；
The electric signal that 3rd relay is exported according to second relay is switched on or switched off the stationary contact as output end
With movable contact.
2. jerk self-lock switch according to claim 1, it is characterised in that the emergency stop switch and first relay
Between be in series with the 4th relay；
The coil of 4th relay connects the emergency stop switch, the stationary contact connection described first of the 4th relay after
The coil of electrical equipment.
3. jerk self-lock switch according to claim 2, it is characterised in that first relay, the second relay,
Three relays and the 4th relay are electromagnetic relays.
4. the jerk self-lock switch according to claim 1 or 3, it is characterised in that first relay and the second relay
Device is the electromagnetic relay that contact is double-point double-throw switch.
5. a kind of automation equipment, including motor driver, it is characterised in that also including A.C. contactor and such as claim
Any described jerk self-lock switch in 1-4；
The main contacts of the A.C. contactor connects power supply and the motor driver respectively, for according to the A.C. contactor
In control coil be powered or off-position, be switched on or switched off the motor driver and the power supply；
The auxiliary contact of the A.C. contactor connect the output end of the power supply and the jerk self-lock switch respectively, for making
Control coil in the A.C. contactor is powered or powered off.
6. automation equipment according to claim 5, it is characterised in that the power supply is single phase poaer supply；
First auxiliary contact of the A.C. contactor are electrically connected with the zero line of the single phase poaer supply, the jerk self-lock switch
First output end is electrically connected with the live wire of the single phase poaer supply, and the second output end of the jerk self-lock switch connects with described exchange
The second auxiliary contact electrical connection of tentaculum.
7. automation equipment according to claim 5, it is characterised in that the power supply is single phase poaer supply；
First auxiliary contact of the A.C. contactor are electrically connected with the live wire of the single phase poaer supply, and the of the A.C. contactor
Two auxiliary contact connect the second output end of the jerk self-lock switch, the first output end connection institute of the jerk self-lock switch
State the zero line of single phase poaer supply.
8. automation equipment according to claim 5, it is characterised in that the power supply is three phase mains；
First auxiliary contact of the A.C. contactor are electrically connected with the first phase line of the three phase mains, the A.C. contactor
The second auxiliary contact connect the first output end of the emergency stop switch, the second output end connection institute of the jerk self-lock switch
State the second phase line of three phase mains.
9. automation equipment according to claim 5, it is characterised in that the automation equipment is industrial robot.
10. automation equipment according to claim 5, it is characterised in that the automation equipment is producing line equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621453949.8U CN206460936U (en) | 2016-12-28 | 2016-12-28 | Jerk self-lock switch and automation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621453949.8U CN206460936U (en) | 2016-12-28 | 2016-12-28 | Jerk self-lock switch and automation equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206460936U true CN206460936U (en) | 2017-09-01 |
Family
ID=59697898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621453949.8U Withdrawn - After Issue CN206460936U (en) | 2016-12-28 | 2016-12-28 | Jerk self-lock switch and automation equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206460936U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783457A (en) * | 2016-12-28 | 2017-05-31 | 珠海格力节能环保制冷技术研究中心有限公司 | Jerk self-lock switch and automation equipment |
| CN109616378A (en) * | 2018-12-06 | 2019-04-12 | 珠海格力电器股份有限公司 | Emergency stop control device, robot and emergency stop control method of robot |
-
2016
- 2016-12-28 CN CN201621453949.8U patent/CN206460936U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783457A (en) * | 2016-12-28 | 2017-05-31 | 珠海格力节能环保制冷技术研究中心有限公司 | Jerk self-lock switch and automation equipment |
| CN106783457B (en) * | 2016-12-28 | 2019-04-09 | 珠海格力电器股份有限公司 | Scram self-locking switch and automation equipment |
| CN109616378A (en) * | 2018-12-06 | 2019-04-12 | 珠海格力电器股份有限公司 | Emergency stop control device, robot and emergency stop control method of robot |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203788042U (en) | Circuit capable of realizing automatic switching of two-way power supply | |
| CN106783457A (en) | Jerk self-lock switch and automation equipment | |
| CN106655898B (en) | Reactor cabinet control circuit | |
| CN206460936U (en) | Jerk self-lock switch and automation equipment | |
| CN109036909A (en) | The GIS electrical equipment disconnecting link motor power control loop of novel 220kV | |
| CN107845519B (en) | Double power supply automatic transfer switch and its control method | |
| CN103715759B (en) | Power selection and interlocking device of automatic change-over switch appliance used in 690V IT system | |
| CN109216113A (en) | Relay-set | |
| CN203456854U (en) | Safety loop | |
| CN203781679U (en) | Grab bucket crane with remote positioning and weighing systems | |
| CN102768919B (en) | Soft-start circuit | |
| CN106683945B (en) | Emergency stop control system and its control method | |
| CN206459002U (en) | Automatic assembling machine security protection and control device based on safety relay | |
| CN106712303B (en) | Breaker operating mechanism box | |
| CN102255612A (en) | Full-electronic solid-state relay | |
| CN104538251A (en) | Contactor driven by capacitive stored energy | |
| CN201204570Y (en) | AC contactless control switch | |
| CN103970043A (en) | Control circuit | |
| CN204632670U (en) | A kind of relay contact switch circuit of unilateal conduction | |
| CN202649754U (en) | Novel electric operation control device | |
| CN202872335U (en) | Circuit protection device for self-coupling voltage reduction starting box | |
| CN106229968A (en) | A kind of interlock and control method thereof | |
| CN218866919U (en) | Control system and equipment | |
| CN110931311A (en) | VSP5 switch electric control circuit | |
| CN205680643U (en) | A kind of intelligent universal circuit breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170901 Effective date of abandoning: 20190409 |