CN108574275A - A kind of power-off protection apparatus and its application method, power supply unit - Google Patents
A kind of power-off protection apparatus and its application method, power supply unit Download PDFInfo
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- CN108574275A CN108574275A CN201810432694.4A CN201810432694A CN108574275A CN 108574275 A CN108574275 A CN 108574275A CN 201810432694 A CN201810432694 A CN 201810432694A CN 108574275 A CN108574275 A CN 108574275A
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- power supply
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
- H02H11/006—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result in case of too high or too low voltage
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Abstract
This application provides a kind of power-off protection apparatus and its application method, power supply units; wherein; the device includes switch module, self-locking module, control module and power supply module; control module is electrically connected with switch module, self-locking module and power supply module respectively; the ac input end connection exchange firewire of self-locking module, self-locking module link control module and power supply module；Switch module, for forming the first trigger signal or the second trigger signal when pressed；The voltage for exchanging firewire is provided to the ac output end of itself and is powered off according to the control of control module by self-locking module for forming self-locking according to the first trigger signal；Control module is used for when self-locking module forms self-locking, and control power supply module is load supplying, and makes power supply module stop powering under switch module control, is additionally operable to control the power-off of self-locking module according to the second trigger signal；Power supply module, for being load supplying according to the control of control module, intelligence degree is higher, and practicability is preferable.
Description
Technical field
This application involves connecting and disconnecting of the circuit control technology fields, in particular to a kind of power-off protection apparatus and its use
Method, power supply unit.
Background technology
Currently, either in work progress or in family life, it is likely to that power failure phenomenon occurs, if equipment user
Forget or can not the switch button of pass hull closure may be because of there are the raisings of instantaneous voltage after power supply to be restored in time
Cause device fails, circuit board can be also burnt out if serious, only equipment or personnel does not bring some potential safety problems, also
It can cause the waste of the energy.
To solve the above-mentioned problems, those skilled in the relevant art have developed various types of power-off protection apparatus,
Common power-off protection apparatus has power failure shutdown protection power source socket, and equipment can be avoided to start automatically after power-off and incoming call.
However, the degree of intelligence of above-mentioned power failure shutdown protection power source socket is poor, accidentally touching caused by plug
Millisecond power failure gap, equipment is still unable to self-starting after connecing electricity, affects normal work.
Invention content
In view of this, the embodiment of the present application is designed to provide a kind of power-off protection apparatus and its application method, power supply
Equipment, intelligence degree is higher, and practicability is preferable.
In a first aspect, the embodiment of the present application provides a kind of power-off protection apparatus, including switch module, self-locking module, control
Molding block and power supply module；The control module is electric with the switch module, the self-locking module and the power supply module respectively
Property connection, the self-locking module ac input end connection exchange firewire, the self-locking module ac output end connection described in
The ac input end of control module and the power supply module；
The switch module forms first under being in the power-off protection apparatus and being not keyed up state when being pressed
Trigger signal；And in the case where the power-off protection apparatus is in open state, the second trigger signal is formed when being pressed；
The self-locking module, for forming self-locking circuit according to the first trigger signal of the switch module, by the friendship
The voltage of filariasis line is provided to the ac output end of itself；And for being powered off according to the control of the control module；
The control module, for when the self-locking module forms self-locking circuit, it to be load to control the power supply module
Power supply, and for making the power supply module stop power supply under switch module control；It is additionally operable to according to the switching molding
Second trigger signal of block controls the self-locking module power-off；
The power supply module, for being the load supplying according to the control of the control module.
With reference to first aspect, the embodiment of the present application provides the first possible embodiment of first aspect, wherein institute
It includes A.C. contactor and the first relay to state self-locking module；The A.C. contactor passes through the switch module and described first
Relay is electrically connected, and the exchange of A.C. contactor input connects the exchange firewire, first relay with it is described
Control module is electrically connected；
The A.C. contactor is used for after being powered according to the first trigger signal of the switch module, by normally off
Normally open is switched to, and self-locking circuit is formed with first relay under the normally open；
First relay, for being powered off according to the control of the control module, to disconnect and the A.C. contactor
The self-locking circuit of formation.
The possible embodiment of with reference to first aspect the first, the embodiment of the present application provide second of first aspect
Possible embodiment, wherein the A.C. contactor includes input terminal, normally closed interlock, normally open contact and coil；The exchange
The input terminal of contactor connects the exchange firewire, the normally closed interlock of the A.C. contactor by the switch module with it is described
Coil is electrically connected, and the normally open contact of the A.C. contactor is electrically connected with first relay；
The A.C. contactor is specifically used under the triggering of the first trigger signal of the switch module so that described
Input terminal, the normally closed interlock, the switch module and the coil form current loop, and when the coil is powered, by
The normally closed interlock switches to the normally open contact, so that the input terminal, the normally open contact, first relay and institute
It states coil and forms self-locking circuit.
With reference to first aspect, the embodiment of the present application provides the third possible embodiment of first aspect, wherein institute
It includes the first contact jaw and the second contact jaw to state switch module；First contact jaw is electrically connected with the control module, institute
The second contact jaw is stated to be electrically connected with the self-locking module；
The switch module is connect under being in the power-off protection apparatus and being not keyed up state by described first
When contravention is pressed into second contact jaw, first trigger signal is formed, and, it is in and opens in the power-off protection apparatus
Under machine state, when pressing first contact jaw, second trigger signal is formed.
The third possible embodiment with reference to first aspect, the embodiment of the present application provide the 4th kind of first aspect
Possible embodiment, wherein the switch module includes self-resetting switch；The bridge-type movable contact of the self-resetting switch is institute
The first contact jaw is stated, the stationary contact of the self-resetting switch is second contact jaw.
With reference to first aspect, the embodiment of the present application provides the 5th kind of possible embodiment of first aspect, wherein institute
It includes Switching Power Supply and the second relay to state power supply module；The Switching Power Supply is electrically connected with second relay, and institute
Switching Power Supply and second relay is stated to be electrically connected with the control module；
The control module is additionally operable to, when the self-locking module forms self-locking circuit, generate for controlling the load
The first control instruction started, and first control instruction is sent to second relay；And in the switching molding
Under block control, the second control instruction closed for controlling the load is generated, and second control instruction is sent to institute
State the second relay；
Second relay starts for controlling the load according to first control instruction；And according to described
Second control instruction controls the load and closes；
The Switching Power Supply, for being the load supplying.
With reference to first aspect, the embodiment of the present application provides the 6th kind of possible embodiment of first aspect, wherein also
Including air switch；The input terminal of the air switch connects the exchange firewire, the output end of the air switch with it is described
The input terminal of self-locking module is electrically connected；
The air switch, for when determining that flowing through the electric current of itself is more than rated current, disconnecting automatically, to cut off
State self-locking module and the connection exchanged between firewire.
Second aspect, the embodiment of the present application also provides the first a kind of including first aspect, first aspect is possible
The power supply of power-off protection apparatus described in embodiment to the possible embodiment of any one of the 6th kind of possible embodiment is set
It is standby.
The third aspect, the embodiment of the present application also provides a kind of application methods of power-off protection apparatus, wherein the use
Method includes：
The first triggering letter is formed using switch module in the case where the power-off protection apparatus is in and is not keyed up state, when being pressed
Number；
Self-locking circuit is formed according to the first trigger signal of the switch module using self-locking mode root tuber, the electricity of firewire will be exchanged
Pressure is provided to the ac output end of itself；
Using control module when the self-locking module forms self-locking circuit, control power supply module is load supplying；
Using the power supply module according to the control of the control module be the load supplying.
Fourth aspect, the embodiment of the present application also provides a kind of application methods of power-off protection apparatus, wherein the use
Method includes：
The second triggering letter is formed using switch module in the case where the power-off protection apparatus is in open state, when being pressed
Number；
Power supply module is set to stop power supply under switch module control using control module, and, according to the switch
Second trigger signal of module, control self-locking module power-off.
Power-off protection apparatus provided by the embodiments of the present application and its application method, power supply unit, pass through switch module, self-locking
Module, control module and power supply module make entire power-off protection apparatus integration and intelligence, are closed with having a power failure in the related technology
The degree of intelligence of machine protection power source socket is poor, is accidentally touching Millisecond power failure gap caused by plug, is being set after connecing electricity
It is standby to be still unable to self-starting, it affects normal work and compares, one side can be in self-locking mode root tuber according to the of switch module
When one trigger signal forms self-locking circuit, power supply module is controlled by control module and realizes on the other hand the power supply to load is gone back
Above-mentioned self-locking circuit can be disconnected according to the second trigger signal of switch module, and stop being negative under the action of control module
Power supply is carried, power failure gap is limited to after connecing electricity so as to avoid power failure shutdown protection power source socket in the related technology and is caused
The problem of equipment is unable to self-starting and affects normal work is realized by the mutual cooperation of switch module and control module
The real-time switching of equipment electricity consumption and device powers down, intelligence degree is higher, and the shunting function based on self-locking module is further true
Protect the electrical safety of load.
To enable the above objects, features, and advantages of the application to be clearer and more comprehensible, preferred embodiment cited below particularly, and coordinate
Appended attached drawing, is described in detail below.
Description of the drawings
It, below will be to needed in the embodiment attached in order to illustrate more clearly of the technical solution of the embodiment of the present application
Figure is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 shows a kind of structural schematic diagram for power-off protection apparatus that the embodiment of the present application is provided；
The structural schematic diagram of self-locking module in a kind of power-off protection apparatus provided Fig. 2 shows the embodiment of the present application；
Fig. 3 shows the structural schematic diagram of power supply module in a kind of power-off protection apparatus that the embodiment of the present application is provided；
Fig. 4 shows a kind of schematic diagram of application structure for power-off protection apparatus that the embodiment of the present application is provided；
Fig. 5 shows a kind of current trend signal of power-off protection apparatus that the embodiment of the present application is provided in booting
Figure；
Fig. 6 shows a kind of flow chart of the application method of power-off protection apparatus provided by the embodiments of the present application；
Fig. 7 shows the flow chart of the application method for another power-off protection apparatus provided by the embodiments of the present application.
Specific implementation mode
To keep the purpose, technical scheme and advantage of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
Middle attached drawing, technical solutions in the embodiments of the present application are clearly and completely described, it is clear that described embodiment is only
It is some embodiments of the present application, instead of all the embodiments.The application being usually described and illustrated herein in the accompanying drawings is real
Applying the component of example can be arranged and designed with a variety of different configurations.Therefore, below to the application's for providing in the accompanying drawings
The detailed description of embodiment is not intended to limit claimed scope of the present application, but is merely representative of the selected reality of the application
Apply example.Based on embodiments herein, institute that those skilled in the art are obtained without making creative work
There is other embodiment, shall fall in the protection scope of this application.
It is slotting accidentally touching in view of the degree of intelligence of power failure shutdown protection power source socket in the related technology is poor
Millisecond power failure gap caused by head, equipment is still unable to self-starting after connecing electricity, affects normal work, is based on this, this Shen
Please a kind of embodiment provide a kind of power-off protection apparatus, be described by following examples.
In conjunction with Fig. 1, Fig. 4 and Fig. 5, the embodiment of the present application provides a kind of power-off protection apparatus, which specifically includes：It opens
Close module 11, self-locking module 12, control module 13 and power supply module 14, control module 13 respectively with switch module 11, self-locking mode
Block 12 and power supply module 14 are electrically connected, the ac input end connection exchange firewire L of self-locking module 12, the exchange of self-locking module 12
The ac input end of output end link control module 13 and power supply module 14；Wherein：
Switch module 11 forms the first triggering letter under being in power-off protection apparatus and being not keyed up state, when being pressed
Number；And in the case where power-off protection apparatus is in open state, the second trigger signal is formed when being pressed；
Self-locking module 12 will exchange firewire L's for forming self-locking circuit according to the first trigger signal of switch module 11
Voltage is provided to the ac output end of itself；And for being powered off according to the control of control module 13；
Control module 13 is load Z power supplies for when self-locking module 12 forms self-locking circuit, controlling power supply module 14,
And for making power supply module 14 stop power supply under the control of switch module 11；It is additionally operable to according to the second of switch module 11 the triggering
Signal, control self-locking module 12 power off；
Power supply module 14, for being load Z power supplies according to the control of control module 13.
Power-off protection apparatus provided by the embodiments of the present application passes through switch module 11, self-locking module 12,13 and of control module
Power supply module 14 is so that entire power-off protection apparatus is integrated and intelligent, with the shutdown protection power source socket that has a power failure in the related technology
Degree of intelligence it is poor, accidentally touching Millisecond power failure gap caused by plug, equipment cannot still open certainly after connecing electricity
It is dynamic, it affects normal work and compares, one side can be in self-locking module 12 according to the first trigger signal of switch module 11
When forming self-locking circuit, power supply of the realization of power supply module 14 to load Z is controlled by control module 13, on the other hand, additionally it is possible to
Under the action of control module 13, above-mentioned self-locking circuit is disconnected according to the second trigger signal of switch module 11, and stop being negative
Z power supplies are carried, power failure gap is limited to after connecing electricity so as to avoid power failure shutdown protection power source socket in the related technology and are led
The problem of causing equipment to be unable to self-starting and affect normal work, passes through the mutual cooperation of switch module 11 and control module 13
Equipment electricity consumption and the real-time switching of device powers down are realized, intelligence degree is higher, and based on the shunting function of self-locking module 12
Further ensure that the electrical safety of load Z.
In the embodiment of the present application, it can determine that above-mentioned power-off protection apparatus is to be in open state also by control module 13
It is to be in be not keyed up state.In the case where power-off protection apparatus is in two different states, switch module 11 is when pressing by shape
At different trigger signals, control module 13 then executes the operations such as keying according to different trigger signal control load Z.Next
Divide two states that power-off protection apparatus provided by the embodiments of the present application is described in detail.
First aspect：In the case where power-off protection apparatus is in and is not keyed up state, at this point, switch module 11 is when pressed, it will
Form corresponding first trigger signal, self-locking module 12 then forms according to first trigger signal and (including exchanges fire with AC line
Line L and AC neutral line N) between self-locking circuit, and can under the premise of forming self-locking circuit, will exchange firewire L voltage
The ac output end of itself is provided to control power supply module 14 by 12 ac output end of self-locking module by control module 13
Voltage is transmitted to load Z, to realize the load Z power supplies under the open state of power-off protection apparatus.
Second aspect：In the case where power-off protection apparatus is in open state, at this point, switch module 11 is when pressed, by shape
At corresponding second trigger signal, control module 13 not only can control self-locking module 12 according to second trigger signal and power off,
Self-locking circuit also will be switched off, and power supply module 14 can also be controlled according to second trigger signal and is stopped as load Z power supplies.Wherein,
The embodiment of the present application not only can control power supply module 14 by the second trigger signal while controlling self-locking module 12 and powering off
Stop powering for load Z, power supply module 14 can also be controlled by other control methods and stops powering for load Z, is such as being powered off
When protective device is in open state, the third trigger signal generated when can be pressed by switch module 11 loads Z to control
Power operation.
It is worth noting that in the embodiment of the present application trigger signal (including the first trigger signal, the second trigger signal with
And third trigger signal) can be that user directly generates when pressing switch module 11, it can also be other control terminal roots
It is generated when acting on switch module 11 according to the control instruction for pressing switch module 11 of generation, the embodiment of the present application is to this
Specific limitation is not done.
Self-locking module 12 in the embodiment of the present application is that the mould of self-locking circuit can be generated under the action of switch module 11
The function of block, the module can be realized in conjunction with A.C. contactor 121 and relay, can also be using other assemblies (such as
A.C. contactor 121 and combination switch) it realizes.
As shown in Fig. 2, to realize the self-locking module 12 of self-locking function in conjunction with A.C. contactor 121 and the first relay 122
Structural schematic diagram.The exchange input connection exchange firewire L of above-mentioned A.C. contactor 121, the first relay 122 and control module
13 are electrically connected；Wherein：
A.C. contactor 121, for after being powered according to the first trigger signal of switch module 11, being switched by normally off
To normally open, and self-locking circuit is formed with the first relay 122 under normally open；
First relay 122 is formed with disconnecting with A.C. contactor 121 for being powered off according to the control of control module 13
Self-locking circuit.
Power-off protection apparatus provided by the embodiments of the present application, under the premise of switch module 11 forms the first trigger signal,
A.C. contactor 121 and the first relay 122 would be combined into self-locking circuit to realize the self-locking function of self-locking module 12, to anti-
Generated instantaneous voltage caused by electrical equipment (as loaded Z) to damaging when being switched on again after only powering off, guarantee electrical safety,
In addition, under the premise of switch module 11 forms the second trigger signal, above-mentioned self-locking is disconnected according to the control of control module 13 and is returned
Road, A.C. contactor 121 and the first relay 122 reset therewith.In order to which the work that above-mentioned self-locking module 12 is expanded on further is former
Reason, is next specifically described in the case where being switched on and being not keyed up state two states.
In the case where power-off protection apparatus is in and is not keyed up state, after switch module 11 is pressed, exchange firewire L, ac contactor
The input terminal 1211 of device 121, the output end of A.C. contactor 121 and AC neutral line N can form closed circuit (such as Fig. 4 institutes
Show), the coil 1214 included by above-mentioned A.C. contactor 121 is also powered therewith.When coil 1214 is powered, the A.C. contactor
121 static iron core generates electromagnetic attraction, and dynamic iron core is attracted, so that normally closed interlock 1212 disconnects, normally open contact 1213 closes
It closes.In this way, A.C. contactor 121 is connected (as shown in Figure 5) with the self-locking circuit that the first relay 122 is formed, and can will hand over
The output voltage of filariasis line L is exported, and realizes power-on operation.In addition, by the shunting function of above-mentioned self-locking circuit, can keep away
Exempt to restart the poor problem of caused electrical safety after improper power-off.
In the case where power-off protection apparatus is in open state, control module 13 is in the operation for receiving switch module 11 and being pressed
When can control the power-off of the first relay 122 so that entire self-locking circuit disconnects, the normally closed interlock of A.C. contactor 121
1212 re-close to be resetted.In addition, the embodiment of the present application according to the second trigger signal control self-locking circuit disconnect when,
Power supply module 14 can also be controlled according to second trigger signal to stop powering for load Z, to realize power-off operation.
Power-off protection apparatus provided by the embodiments of the present application can be directly load Z power supplies by Switching Power Supply 141, can be with
It is that load Z powers using Switching Power Supply 141 under control action of the control module 13 to relay.Next mainly to the
Two kinds of power supply modes are illustrated.
As shown in figure 3, the power supply module 14 in the embodiment of the present application includes Switching Power Supply 141 and the second relay 142.Tool
Body, in the case where power-off protection apparatus is in and is not keyed up state, control module 13 can be in the first trigger signal of switch module 11
Under the action of, the first control instruction started for controlling load Z is generated, the second relay 142 can then refer in the first control
Under the control action of order, which is decoded to obtain the first driving instruction for driving load Z to open,
Load Z is then opened under the action of the first driving instruction, realizes power-on operation.Similarly, in the case where power-off protection is in open state,
Control module 13 can generate first closed for controlling load Z under the action of the second trigger signal of switch module 11
Control instruction, the second relay 142 can then solve second control instruction under the control action of the second control instruction
To obtain the second driving instruction for driving load Z to close, load Z is then closed under the action of the second driving instruction code, real
Existing power-off operation.
It is worth noting that when executing power-off operation, it not only can control self-locking simultaneously by the second trigger signal and return
The disconnection on road and the power-off for loading Z can also individually load the power-off of Z by other control signal controls, can not also be single
Solely the power-off for loading Z is controlled, after self-locking circuit disconnects namely after circuit disconnection, to enable load Z power themselves downs, this
Application embodiment does not do this specific limitation.In addition, multiple second relays 142 can also be arranged to tie in the embodiment of the present application
Control module 13 is closed to realize to the power supply control of multi-load Z, control module 13 when it is load Z power supplies to control power supply module 14,
It can control and multi-load Z is powered successively, to ensure that the stability of electricity consumption is arranged in electricity consumption, can also control to multi-load Z
In certain loads Z be powered, to meet the different demands of different user, similarly, control module 13 control power supply module
14 for load Z stop power supply when, can also execute successively power-off and it is specific power supply etc. operations.
In view of good characteristics such as A.C. contactor 121 is energy saving, suction is big, good reliabilitys, self-locking in the embodiment of the present application
The self-locking function of module 12 can be to rely on the realization of above-mentioned A.C. contactor 121.
A kind of schematic diagram of application structure for power-off protection apparatus that the embodiment of the present application as shown in Figure 4 is provided.It is above-mentioned
A.C. contactor 121 includes input terminal 1211, normally closed interlock 1212, normally open contact 1213 and coil 1214；A.C. contactor 121
The connection exchange firewire L of input terminal 1211, the normally closed interlock 1212 of A.C. contactor 121 passes through switch module 11 and coil 1214
It is electrically connected, the normally open contact 1213 of A.C. contactor 121 and the first relay 122 are electrically connected；Wherein：
A.C. contactor 121 is specifically used under the triggering of the first trigger signal of switch module 11 so that input terminal
1211, normally closed interlock 1212, switch module 11 and coil 1214 form current loop, and when coil 1214 is powered, by normally closed
Contact 1212 switches to normally open contact 1213, so that input terminal 1211, normally open contact 1213, the first relay 122 and coil
1214 form self-locking circuit.
In the embodiment of the present application, in the case where power-off protection apparatus is in and is not keyed up state, A.C. contactor 121 is in the first triggering
Under the action of signal, exchange firewire L, the input terminal 1211 of A.C. contactor 121, the output end of A.C. contactor and exchange zero
Line N can form closed circuit, and above-mentioned coil 1214 is also powered therewith.When coil 1214 is powered, the A.C. contactor 121
Static iron core generates electromagnetic attraction, and dynamic iron core is attracted, so that normally closed interlock 1212 disconnects, normally open contact 1213 is closed.This
Sample flows through the normally open contact 1213 that the electric current of exchange firewire L will pass through after being closed and acts on the first relay 122, so that
A.C. contactor 121 is connected with the self-locking circuit that the first relay 122 is formed, and can by exchange firewire L output voltage into
Power-on operation is realized in row output (as shown in Figure 5).
Similarly, in the case where power-off protection apparatus is in open state, the first relay 122 will be made in the control of control module 13
With lower power-off, so that above-mentioned self-locking circuit disconnects, 121 normally open contact 1213 of A.C. contactor disconnects, normally closed interlock 1212
It is closed, realizes and reset, the first relay 122 also resets therewith, to realize power-off operation.
As shown in Figure 4 and Figure 5, the switch module 11 in above-mentioned power-off protection apparatus includes the first contact jaw 111 and second
Contact jaw 112；First contact jaw 111 is electrically connected with control module 13, and the second contact jaw 112 electrically connects with self-locking module 12
It connects；Wherein：
Switch module 11 is pressed under being in power-off protection apparatus and being not keyed up state by the first contact jaw 111
When to the second contact jaw 112, the first trigger signal is formed, and, in the case where power-off protection apparatus is in open state, pressing first
When contact jaw 111, the second trigger signal is formed.
In the embodiment of the present application, above-mentioned switch module 11 can be self-resetting switch, can also be other trigger switch, such as
Reset switch.In view of the good characteristic of self-resetting switch, the embodiment of the present application may be used self-resetting switch and realize above-mentioned open
Close the switching function of module 11.
Wherein, the bridge-type movable contact of above-mentioned self-resetting switch is corresponding with the first contact jaw 111, the stationary contact of self-resetting switch
It is corresponding with the second contact jaw 112.
Specifically, when realizing switching function using self-resetting switch, the trigger signal in the embodiment of the present application can be
It is formed by pressing self-resetting switch.In the case where power-off protection apparatus is in and is not keyed up state, the elastic seesaw of self-resetting switch
It is connect with the first contact jaw 111, when first contact jaw 111 is pressed into the second contact jaw 112, the elasticity of self-resetting switch
Wraping plate is connected with the second contact jaw 112, so that the normally open contact 1213 of A.C. contactor 121 is led with itself coil 1214
It is logical, and when coil 1214 is powered, normally open contact 1213 switches to normally closed interlock 1212, then self-locking circuit is connected, to realize
Power-on operation.At this point, the resetting-mechanism of self-resetting switch restores elastic seesaw to be extremely connected with the first contact jaw 111 automatically.
Under open state, control module can be formed by according to the elastic seesaw of self-resetting switch with the disconnection of the first contact jaw 111
Second trigger signal, control self-locking circuit disconnects and control power supply module 14 stops as load Z power supplies.
It is worth noting that control module 13 in the embodiment of the present application can according to the number of pressing self-resetting switch,
The modes such as the combination of duration or both control power supply module 14 and are powered to multi-load Z or stop power supply, to meet user
To the different demands of power supply or the power-off of multi-load Z.
In order to further carry out the protection of safety, power-off protection apparatus provided by the embodiments of the present application to electrical equipment
It is also provided with air switch 15.As shown in Figure 4 and Figure 5, the input terminal connection exchange firewire L of above-mentioned air switch 15, sky
The output end of air cock 15 is electrically connected with the input terminal of self-locking module 12；Wherein：
Air switch 15, for when determining that flowing through the electric current of itself is more than rated current, disconnecting automatically, to cut off self-locking
Module 12 with exchange the connection between firewire L.
In the embodiment of the present application, air switch 15 is an over-current protection device, when the electric current in circuit is more than that itself is pre-
If rated current when, air switch 15 by closure can be switched to off-state, so that entire circuit disconnects therewith, to not only
The safeguard protection to electrical equipment is realized, also so that the circuit device therewith in circuit will not generate damage because of overcurrent,
Practicability is more preferably.
Based on above-mentioned power-off protection apparatus, the embodiment of the present application also provides a kind of power supply unit, which can be with
Individually implement operation, can be combined with other power supply units and operated, realizes the peace to loading Z and device in the power supply circuit
Full guard.
Based on same inventive concept, power-off protection dress corresponding with power-off protection apparatus is additionally provided in the embodiment of the present application
The application method set, the principle and the above-mentioned power-off protection of the embodiment of the present application solved the problems, such as due to the method in the embodiment of the present application
Device is similar, and because the implementation of the method may refer to the implementation of device, overlaps will not be repeated.
As shown in fig. 6, be a kind of flow chart of the application method of power-off protection apparatus provided by the embodiments of the present application, it is above-mentioned
Application method includes the following steps：
S101, the first triggering is formed in the case where power-off protection apparatus is in and is not keyed up state, when being pressed using switch module
Signal；
S102, self-locking circuit is formed according to the first trigger signal of switch module using self-locking mode root tuber, firewire will be exchanged
Voltage is provided to the ac output end of itself；
S103, using control module self-locking module formed self-locking circuit when, control power supply module be load supplying；
S104, using power supply module according to the control of control module be load supplying.
As shown in fig. 7, the flow chart of the application method for another power-off protection apparatus provided by the embodiments of the present application, on
Application method is stated to include the following steps：
S201, the second triggering letter is formed in the case where power-off protection apparatus is in open state, when being pressed using switch module
Number；
S202, power supply module is made to stop power supply under switch module control using control module, and, according to switch module
The second trigger signal, control self-locking module power-off.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer read/write memory medium.Based on this understanding, the technical solution of the application is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be expressed in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be
People's computer, server or network equipment etc.) execute each embodiment the method for the application all or part of step.
And storage medium above-mentioned includes：USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic disc or CD.
More than, the only specific implementation mode of the application, but the protection domain of the application is not limited thereto, and it is any to be familiar with
Those skilled in the art can easily think of the change or the replacement in the technical scope that the application discloses, and should all cover
Within the protection domain of the application.Therefore, the protection domain of the application should be subject to the protection scope in claims.
Claims (10)
1. a kind of power-off protection apparatus, which is characterized in that including switch module, self-locking module, control module and power supply module；Institute
It states control module to be electrically connected with the switch module, the self-locking module and the power supply module respectively, the self-locking module
Ac input end connection exchange firewire, the ac output end of the self-locking module connects the control module and the power supply mould
The ac input end of block；
The switch module forms the first triggering under being in the power-off protection apparatus and being not keyed up state, when being pressed
Signal；And in the case where the power-off protection apparatus is in open state, the second trigger signal is formed when being pressed；
The self-locking module, for forming self-locking circuit according to the first trigger signal of the switch module, by exchange fire
The voltage of line is provided to the ac output end of itself；And for being powered off according to the control of the control module；
The control module is used for when the self-locking module forms self-locking circuit, and it is load supplying to control the power supply module,
And for making the power supply module stop power supply under switch module control；It is additionally operable to according to the switch module
Two trigger signals control the self-locking module power-off；
The power supply module, for being the load supplying according to the control of the control module.
2. power-off protection apparatus according to claim 1, which is characterized in that the self-locking module include A.C. contactor and
First relay；The A.C. contactor is electrically connected by the switch module and first relay, and the exchange connects
The exchange input of tentaculum connects the exchange firewire, and first relay is electrically connected with the control module；
The A.C. contactor, for after being powered according to the first trigger signal of the switch module, being switched by normally off
To normally open, and self-locking circuit is formed with first relay under the normally open；
First relay is formed with disconnecting with the A.C. contactor for being powered off according to the control of the control module
Self-locking circuit.
3. power-off protection apparatus according to claim 2, which is characterized in that the A.C. contactor include input terminal, often
Close contact, normally open contact and coil；The input terminal of the A.C. contactor connects the exchange firewire, the A.C. contactor
Normally closed interlock is electrically connected by the switch module and the coil, the normally open contact of the A.C. contactor and described first
Relay is electrically connected；
The A.C. contactor is specifically used under the triggering of the first trigger signal of the switch module so that the input
End, the normally closed interlock, the switch module and the coil form current loop, and when the coil is powered, by described
Normally closed interlock switches to the normally open contact, so that the input terminal, the normally open contact, first relay and the line
Circle forms self-locking circuit.
4. power-off protection apparatus according to claim 1, which is characterized in that the switch module include the first contact jaw and
Second contact jaw；First contact jaw is electrically connected with the control module, second contact jaw and the self-locking module
It is electrically connected；
The switch module, under being in the power-off protection apparatus and being not keyed up state, by first contact jaw
When being pressed into second contact jaw, first trigger signal is formed, and, it is in booting shape in the power-off protection apparatus
Under state, when pressing first contact jaw, second trigger signal is formed.
5. power-off protection apparatus according to claim 4, which is characterized in that the switch module includes self-resetting switch；
The bridge-type movable contact of the self-resetting switch is first contact jaw, and the stationary contact of the self-resetting switch connects for described second
Contravention.
6. power-off protection apparatus according to claim 1, which is characterized in that the power supply module includes Switching Power Supply and
Two relays；The Switching Power Supply is electrically connected with second relay, and the Switching Power Supply and second relay
It is electrically connected with the control module；
The control module is additionally operable to, when the self-locking module forms self-locking circuit, generate and start for controlling the load
The first control instruction, and first control instruction is sent to second relay；And in the switch module control
Under system, the second control instruction closed for controlling the load is generated, and second control instruction is sent to described the
Two relays；
Second relay starts for controlling the load according to first control instruction；And according to described second
Control instruction controls the load and closes；
The Switching Power Supply, for being the load supplying.
7. power-off protection apparatus according to claim 1, which is characterized in that further include air switch；The air switch
Input terminal connect the exchange firewire, the output end of the air switch and the input terminal of the self-locking module are electrically connected；
The air switch, for when determining that flowing through the electric current of itself is more than rated current, automatic disconnection to be described certainly with cut-out
Lock module and the connection exchanged between firewire.
8. a kind of power supply unit including the power-off protection apparatus described in any one of claim 1 to 7.
9. a kind of application method of power-off protection apparatus, which is characterized in that utilize breaking described in any one of claim 1 to 8
Electrical protective device, the method includes：
Using switch module in the case where the power-off protection apparatus is in and is not keyed up state, the first trigger signal is formed when being pressed；
Self-locking circuit is formed according to the first trigger signal of the switch module using self-locking mode root tuber, the voltage for exchanging firewire is carried
It is supplied to the ac output end of itself；
Using control module when the self-locking module forms self-locking circuit, control power supply module is load supplying；
Using the power supply module according to the control of the control module be the load supplying.
10. a kind of application method of power-off protection apparatus, which is characterized in that utilize breaking described in any one of claim 1 to 8
Electrical protective device, the method includes：
Using switch module in the case where the power-off protection apparatus is in open state, the second trigger signal is formed when being pressed；
Power supply module is set to stop power supply under switch module control using control module, and, according to the switch module
The second trigger signal, control self-locking module power-off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810432694.4A CN108574275B (en) | 2018-05-08 | 2018-05-08 | Power-off protection device, use method thereof and power supply equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810432694.4A CN108574275B (en) | 2018-05-08 | 2018-05-08 | Power-off protection device, use method thereof and power supply equipment |
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| Publication Number | Publication Date |
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| CN108574275A true CN108574275A (en) | 2018-09-25 |
| CN108574275B CN108574275B (en) | 2020-03-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112347569A (en) * | 2020-11-30 | 2021-02-09 | 中国第一汽车股份有限公司 | Contactor control method, device and equipment conforming to functional safety and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205981249U (en) * | 2016-08-08 | 2017-02-22 | 深圳市大疆创新科技有限公司 | Switching on and shutting down circuit and droplet detector |
| CN107340719A (en) * | 2017-08-25 | 2017-11-10 | 南昌欧菲光科技有限公司 | Start self-locking device and intelligent home control system |
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2018
- 2018-05-08 CN CN201810432694.4A patent/CN108574275B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205981249U (en) * | 2016-08-08 | 2017-02-22 | 深圳市大疆创新科技有限公司 | Switching on and shutting down circuit and droplet detector |
| CN107340719A (en) * | 2017-08-25 | 2017-11-10 | 南昌欧菲光科技有限公司 | Start self-locking device and intelligent home control system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112347569A (en) * | 2020-11-30 | 2021-02-09 | 中国第一汽车股份有限公司 | Contactor control method, device and equipment conforming to functional safety and storage medium |
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| CN108574275B (en) | 2020-03-10 |
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Effective date of registration: 20211015 Address after: 102200 304, building 6, No. 97, Changping Road, Shahe Town, Changping District, Beijing (Changping Demonstration Park) Patentee after: Beijing Yimei Yundong Photoelectric Technology Co.,Ltd. Address before: 519000 room 105-22379, No. 6, Baohua Road, Zhuhai, Guangdong (centralized office area) Patentee before: WINGDERM ELECTRO-OPTICS Ltd. |
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