CN208782474U - The anti-firing circuit of power connection and the power supply with the circuit - Google Patents
The anti-firing circuit of power connection and the power supply with the circuit Download PDFInfo
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- CN208782474U CN208782474U CN201821342231.0U CN201821342231U CN208782474U CN 208782474 U CN208782474 U CN 208782474U CN 201821342231 U CN201821342231 U CN 201821342231U CN 208782474 U CN208782474 U CN 208782474U
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Abstract
The utility model discloses a kind of anti-firing circuit of power connection and with the power supply of the circuit, power supply connection method includes: before the first electrode end in power supply, the first electrode end at second electrode end and load, second electrode end are electrically connected, it is electrically connected the first electrode end of power supply, anti-sparking connecting pin with the first electrode end of load, second electrode end respectively, anti- sparking connecting pin is coupled in the second electrode side of power supply, and first electrode end, second electrode end are electrically connected with the first electrode of power supply, second electrode respectively；Power supply is charged by the circuit being coupled between the second electrode of power supply and anti-sparking connecting pin to the load capacitance of load end, when the first electrode end of power supply, the first electrode end at second electrode end and load, when second electrode end is electrically connected, anti- sparking connecting pin is connect with power supply and the second electrode terminal shortcircuit of load, the circuit being coupled between the second electrode of power supply and anti-sparking connecting pin is bypassed, i.e. when power supply works normally, electric current is not present in the circuit being coupled between the second electrode end of power supply and anti-sparking connecting pin, circuit is in zero-power state, advantageously reduce power supply power consumption.
Description
Technical field
The utility model relates to a kind of anti-firing circuit of power connection and with the power supply of the circuit.
Background technique
Existing load equipment is frequently accompanied by heavy load capacitor in its power input, when plugging power connector,
Connector between existing load and power supply can not be effectively prevented " sparking " phenomenon of power connector plug moment, be easy
Lead to connector ablation, leads to the service life for reducing connector, or even connector poor contact occur to lead to equipment damage etc.
Adverse consequences.
Utility model content
The first purpose of the utility model embodiment is to provide a kind of anti-firing circuit of power connection and with the circuit
Power supply prevents using the technical solution or weakens " sparking " phenomenon generated when power supply connection load.
In a first aspect, the anti-firing circuit of a kind of power connection provided by the embodiment of the utility model, the power connection packet
Include first electrode end, second electrode end, the first electrode end, second electrode end respectively with the first electrode of power supply body,
The electrical connection of two electrodes, one of the first electrode, second electrode are anode, and another is negative pole end,
The anti-firing circuit of power connection includes:
The anti-sparking connecting pin, is coupled in the second electrode side of the power supply, and the anti-sparking connecting pin is longer than described
The second electrode end of power connection makes when the power supply and the power connection of load mutually patch, the anti-sparking connecting pin with
Second electrode end and the second of the load of the electrical connection time at the second electrode end of the load earlier than the power connection
The electrical contact Connection Time of electrode tip,
Voltage regulator circuit, input terminal accesses the voltage between the anti-sparking connecting pin and the second electrode of the power supply, defeated
Outlet is electrically connected with the input terminal for driving the first driving circuit of first switch circuit,
First driving circuit, output end are electrically connected with the control terminal of the first switch circuit；
The first switch circuit is coupled between the second electrode of the power supply and the anti-sparking connecting pin, works as institute
State the first electrode end of power supply, when anti-sparking connecting pin is electrically connected with the first electrode end of the load, second electrode end respectively,
The first switch circuit is in the conductive state, and the power supply is filled by the first switch circuit to the load capacitance of load end
Electricity, when the second electrode end of the power supply is electrically connected with the second electrode end of the load, the anti-sparking connecting pin and institute
State second electrode end, the second electrode, the mutually short circuit of the second electrode of the load of power supply.
Optionally, further includes:
First delay circuit, be connected electrically in the voltage regulator circuit output end and first driving circuit input terminal it
Between.
Optionally, further includes:
The first switch circuit includes: the first power switch tube, the control terminal of first power switch tube with it is described
The output end of first driving circuit is electrically connected, the two switch terminals second electrode with the anti-sparking connecting pin, the power supply respectively
Mutually couple.
Optionally, the first electrode is anode, and second electrode is cathode,
First power switch tube is N-channel MOS switching tube, the grid of first power switch tube and described first
The output end of driving circuit is electrically connected, and the cathode of source electrode and the power supply mutually couples, and is drained and is mutually coupled with the anode of the power supply.
Optionally, second switch circuit is connected electrically between anti-sparking connecting pin and the second electrode of the power supply,
When the charging duration that the power supply charges to the load capacitance is equal to or more than scheduled second duration, the second switch
Circuit is in the conductive state, and the anti-sparking connecting pin is connect with the second electrode of the power supply, second electrode terminal shortcircuit；
Second driving circuit, for driving the second switch circuit on or off.
Optionally, the second switch circuit includes: the second power switch tube.
Optionally, the first electrode is anode, and second electrode is cathode,
Second power switch tube is N-channel MOS switching tube, the grid of second power switch tube and described second
The output end of driving circuit is electrically connected, and source electrode is electrically connected with the cathode of the power supply, and drain electrode is electrically connected with the anti-sparking connecting pin
It connects.
Optionally, the second switch circuit includes: the circuit being made of at least two power switch tubes being in parallel,
The control terminal of each power switch tube is electrically connected with the output end of second driving circuit jointly, each function
Two switch terminals of rate switching tube are electrically connected with the second electrode of the anti-sparking connecting pin, the power supply respectively.
Optionally, the second switch circuit includes: the circuit being made of at least two second power switch tubes being connected in series,
The control terminal of each second power switch tube is electrically connected with the output end of second driving circuit jointly.
Optionally, current-limiting resistance is also in series between the anti-sparking connecting pin and the first switch circuit.
Second aspect, a kind of power supply provided by the embodiment of the utility model, comprising:
Power supply body；
Power connection, including first electrode end, second electrode end, the first electrode end, second electrode end respectively with institute
State power supply body first electrode, second electrode electrical connection, one of the first electrode, second electrode be with anode,
Another is cathode；
Above-mentioned any anti-firing circuit of power connection；
The length of the anti-firing circuit connecting pin is longer than the second electrode end of the power connection, the first electrode end
Length be longer than the second electrode end of the power connection, make when the power supply and the power connection of the load mutually patch,
The anti-sparking connecting pin is electrically connected second electrode of the time earlier than the power connection with the second electrode end of the load
The electrical contact Connection Time at end and the second electrode end of the load.
Optionally, the power supply body is rechargeable battery.
Optionally, the power supply body is lithium ion battery.
Optionally, the power supply body is lithium ion battery.
It is mutually electric at power supply, the first electrode end of load, second electrode end therefore using the present embodiment technical solution
Before connection, make the second electricity of second electrode end of the anti-sparking connecting pin for the second electrode for being coupled in power supply prior to power supply and load
Extreme electrical connection makes power supply first to the load capacitance charging certain time of load, with power supply and the load being electrically connected after reduction
Voltage difference between second electrode end prevents or reduces " sparking " phenomenon；
In addition, using the present embodiment technical solution, in the first electricity of the first electrode end of power supply, second electrode end and load
Extremely, when second electrode end is electrically connected, the second electrode terminal shortcircuit of anti-sparking connecting pin and power supply is connected, and is coupled in the of power supply
Circuit between two electrode tips and anti-sparking connecting pin is bypassed, i.e., when power supply works normally, is coupled in the second of power supply
Electric current is not present in circuit between electrode tip and anti-sparking connecting pin, and circuit is in zero-power state, advantageously reduces power supply function
Consumption.
Detailed description of the invention
Attached drawing described herein is used to provide a further understanding of the present invention, and is constituted part of this application,
It does not constitute improper limits to the present invention.
Fig. 1 is that the method flow that a kind of power supply that the utility model embodiment 1 provides is connect with external circuit or equipment shows
It is intended to；
Fig. 2 is the application principle schematic diagram for the anti-firing circuit of a power connection that embodiment 2 provides；
Fig. 3 is the application principle schematic diagram for the anti-firing circuit of another power connection that embodiment 2 provides；
Fig. 4 is the application principle schematic diagram for the anti-firing circuit of another power connection that embodiment 2 provides；
Fig. 5 is the application principle schematic diagram for the anti-firing circuit of another power connection that embodiment 2 provides；
Fig. 6 is the application principle schematic diagram for the anti-firing circuit of a power connection that embodiment 3 provides；
Fig. 7 is the application principle schematic diagram for the anti-firing circuit of another power connection that embodiment 3 provides；
Fig. 8 is the application principle schematic diagram for the anti-firing circuit of another power connection that embodiment 3 provides；
Fig. 9 is the application principle schematic diagram for the anti-firing circuit of another power connection that embodiment 3 provides.
Specific embodiment
The utility model is described in detail below in conjunction with attached drawing and specific embodiment, in the signal of this utility model
Property embodiment and explanation be used to explain the utility model, but be not intended to limit the scope of the present invention.
Embodiment 1
A kind of method connecting suitable for power supply with external circuit or equipment is present embodiments provided, wherein the power supply can be with
But it is not limited to rechargeable battery, such as lithium ion battery or battery etc..Wherein the lithium ion battery can be single battery
Or the Li-ion batteries piles being made of multiple single batteries.
Be provided on power supply it is for external external circuit or equipment, for input/output electric current first electrode end,
Second electrode end, wherein first electrode end, second electrode end are electrically connected with the first electrode of power supply, second electrode respectively, wherein
One of first electrode, second electrode are anode, and another is cathode.
The present embodiment is signal by lithium ion battery of the power supply body of power supply, is illustrated to the present embodiment application principle
Property description.
When external circuit or equipment are electrical equipment, the power supply is by first electrode end, second electrode end to electricity consumption
Equipment exports electric current；When external circuit or equipment are charger, plant-grid connection foreign current charges to power supply at this time.
In the present embodiment, for convenience, it will be electrically connected below with the first electrode end of the present embodiment power supply, the second electric connecting terminal
Circuit or equipment be denoted as load, the capacitor (generally equivalent capacity) between the positive and negative anodes of load is denoted as load capacitance.
Shown in Figure 1, the power supply connection method of the present embodiment specifically includes that
Step 101: make the first electrode end of power supply, anti-sparking connecting pin respectively with the first electrode end of load, the second electricity
Extreme electrical connection.
In the present embodiment, it has been also coupled to anti-sparking connecting pin in the second electrode of power supply, has made the electricity of power supply and load
When source connector mutually patches, make the anti-sparking connecting pin of the present embodiment prior to the second electrode end of power supply and the second electricity of external load
Extreme electrical connection, the first electrode end for making power supply, anti-sparking connecting pin are prior to the first electrode end of the power supply, second electrode
End, is electrically connected with the first electrode end of load, second electrode end.
Step 102: power supply is by the circuit that is coupled between the second electrode end of power supply and anti-sparking connecting pin to load
The load capacitance at end charges.
When first electrode end, the anti-sparking connecting pin of power supply are electrically connected with the first electrode end of load, second electrode end,
The of circuit and power supply between the first electrode end of power supply, the second electrode for loading, being coupled in power supply and anti-sparking connecting pin
Two electrodes forming circuit, power supply by be coupled in power supply second electrode and it is anti-sparking connecting pin between circuit to load capacitance
Charging gradually decreases the moment pressure difference for loading both ends, reduces subsequent power supply and two when the second electrode end of load mutually patches
The voltage difference of electrode tip is beneficial to prevent or reduces connecting pin Contact due to excessive caused " sparking " phenomenon of pressure difference.
As the signal of the present embodiment and it is non-limiting, the present embodiment has also carried out design below:
After first electrode end, the anti-sparking connecting pin of power supply are electrically connected with the first electrode end of load, second electrode end,
Also be delayed the first duration T1, then the circuit being coupled between anti-sparking connecting pin and the second electrode of power supply is connected, so that power supply
It is charged by the circuit being coupled between anti-sparking connecting pin and the second electrode of power supply to load capacitance, wherein set electricity
The time that the first electrode end in source, anti-sparking connecting pin are electrically connected with the first electrode end of load, second electrode end is than power supply
The when a length of T0 that the time that first electrode end, second electrode end are electrically connected with the first electrode end of load, second electrode end is done sth. in advance,
First duration T1 < T0 of the first delay circuit.
Using the technical solution of the first duration of delay T1 of the present embodiment, it is advantageously ensured that again to negative after connector stable connection
Capacitor charging is carried, the circuit unsteady current input load capacitor of junction contacts moment is avoided.
Step 103: first electrode end, second electrode end point when the first electrode end of power supply, second electrode end and load
Not electricity Lian Jie when, power supply and load form circuit loop, realize power supply supplying power for outside or introduce foreign current to power source charges.
In the present embodiment when the first electrode end of power supply, second electrode end and the first electrode end of load, second electrode
End is when being electrically connected, and anti-sparking connecting pin and the second electrode of power supply, second electrode end, the second electrode end of load are jointly short
Road connection, the circuit being coupled between the second electrode end of power supply and anti-sparking connecting pin at this time are bypassed.
It is mutually electric at power supply, the first electrode end of load, second electrode end therefore using the present embodiment technical solution
Before connection, make the second electricity of second electrode end of the anti-sparking connecting pin for the second electrode for being coupled in power supply prior to power supply and load
Extreme electrical connection makes power supply first to the load capacitance charging certain time of load, with power supply and the load being electrically connected after reduction
Voltage difference between second electrode end prevents or reduces " sparking " phenomenon；
In addition, using the present embodiment technical solution, in the first electricity of the first electrode end of power supply, second electrode end and load
Extremely, when second electrode end is electrically connected, the second electrode terminal shortcircuit of anti-sparking connecting pin and power supply is connected, and is coupled in the of power supply
Circuit between two electrode tips and anti-sparking connecting pin is bypassed, i.e., when power supply works normally, is coupled in the second of power supply
Electric current is not present in circuit between electrode tip and anti-sparking connecting pin, and circuit is in zero-power state, advantageously reduces power supply function
Consumption.
In addition, the present inventor has found when carrying out the utility model research, user connects in the power supply for carrying out power supply and load
The problem of head is when mutually patching, can be due to operation error or the power connection of user, in fact it could happen that the first electrode end of power supply, anti-
The first electrode end of power supply after some time after sparking connecting pin is electrically connected with the first electrode end of load, second electrode end, the
The possibility that two electrode tips are not connect with the first electrode end of load, second electrode termination plug-in also, in order in above-mentioned possible situation
When appearance, improve the safety of power supply and reduce its energy consumption: the present inventor additionally provides optimal technical scheme below:
As the present embodiment signal rather than limit, after step 202 before step 203, if power supply passes through coupling
Circuit between the second electrode end and anti-sparking connecting pin of power supply is reached to the charging duration that the load capacitance of load end charges
After arriving or being more than scheduled second duration T2, make the mutually short circuit of the second electrode of anti-sparking connecting pin and power supply, to make to couple
Circuit between anti-sparking connecting pin and the second electrode of power supply is bypassed, and makes to be coupled in the of anti-sparking connecting pin and power supply
Circuit between two electrodes is in zero power consumption state, and the energy consumption of power supply can be effectively reduced.Wherein the second duration T2 is by designer's root
The slotting time is set according to jointing of the user to power supply.
Embodiment 2:
It is shown in Figure 2, a kind of anti-firing circuit of power connection is present embodiments provided, which is coupled in electricity
The second electrode side in source.
Specifically, the anti-firing circuit of the power connection includes:
Anti- sparking connecting pin Pin203, is coupled in the second electrode of power supply, and the end of anti-sparking connecting pin Pin203
Sub- length is longer than the terminal length of the second electrode end Pin202 of power supply and long with the terminal of the first electrode end Pin201 of power supply
It spends similar or equal, makes when power supply and the power connection of load mutually patch, the of anti-sparking connecting pin Pin203, power supply
One electrode tip Pin201 is electrically connected second electrode end Pin202 of the time earlier than power supply with the second electrode end Pin302's of load
The time is electrically connected with the second electrode end Pin302 of load.
Voltage regulator circuit 204, input terminal access the voltage between anti-sparking connecting pin Pin203 and the second electrode of institute's power supply
As input voltage, output end and the driving circuit (being denoted as the first driving circuit 205) for driving first switch circuit 206
Input terminal electrical connection, outputting drive voltage；
First driving circuit 205, output end are electrically connected with the control terminal of first switch circuit 206, for driving first to open
The conducting and shutdown on powered-down road 206.
First switch circuit 206 is coupled between the second electrode of power supply and anti-sparking connecting pin Pin203, when power supply
First electrode end Pin301, the second electrode end Pin302 of first electrode end Pin201, anti-sparking connecting pin Pin203 and load
When being electrically connected, voltage regulator circuit 204 has a voltage input, voltage regulator circuit 204 to input voltage after DC-DC is converted, to
One drive circuit 205 export burning voltage, driving first switch circuit 206 be connected, power supply by first switch circuit 206 with to
Load capacitance C1 charging.
Second electrode end Pin202 and load when user continues to promote the power connection of power supply and load, until power supply
Second electrode end Pin302 electrical connection when, it is anti-sparking connecting pin Pin203 and power supply second electrode end Pin202, second electricity
Pole and load the Pin302 short circuit of second electrode end connection, be connected to power supply second electrode and anti-sparking connecting pin
First switch circuit 206 between Pin203 is bypassed by above-mentioned short circuit connection circuit, is input to voltage regulator circuit 204 at this time
Input voltage is equal to 0, and first switch circuit 206 disconnects, and the power consumption of circuit is 0.
Therefore using the present embodiment technical solution, using the present embodiment technical solution have it is below the utility model has the advantages that
1, using the present embodiment technical solution, it is connected at the first electrode end Pin201 of power supply, second electrode end with load
Before connecing, make the anti-sparking connecting pin Pin203 for the second electrode side for being coupled in power supply prior to power supply second electrode end Pin202 with
The second electrode end Pin302 of load is first electrically connected, and power supply first charges to load capacitance C1, is allowed to the second electricity of rear power supply, load
Close to when connecting, the voltage difference of two opposed ends is very low perhaps almost equal to be prevented or reduces power supply and connect extreme Pin302 phase
" sparking " phenomenon of head opposite grafting moment；
2, in the first electrode end Pin201 of power supply, second electrode end and the first electrode end of load Pin301, the second electricity
When extreme Pin302 is electrically connected, the anti-sparking being coupled between the second electrode of power supply and anti-sparking connecting pin Pin203 is electric
Road is bypassed, and anti-firing circuit is in zero-power state, has no effect to the work of power supply, is advantageously reduced power consumption, is also kept away
Infection when power-free works normally to power supply charge-discharge control circuit.
As the present embodiment signal rather than limit, shown in Figure 3, the first switch circuit 206 of the present embodiment includes:
First power switch tube Q1 can be, but not limited to use N-channel MOS pipe in the present embodiment, at this time anti-sparking connecting pin
Pin203 is coupled in cathode (i.e. the second electrode of power supply) side of power supply, input, the grid " G " of the first power switch tube Q1 and the
The output end of one drive circuit 205 is electrically connected, and source electrode " S " is electrically connected with the cathode of power supply, drain electrode " D " and anti-sparking connecting pin
Pin203 electrical connection, when the voltage for being input to the first power switch tube grid " G " is scheduled positive voltage, the first power switch
Pipe Q1 conducting.
In the present embodiment to be signal in the negative side of power supply coupling N-type metal-oxide-semiconductor, but it is not limited to this, similarly can be with
Alternative is realized as first switch circuit 206 using p-type metal-oxide-semiconductor in the side of the positive electrode coupling of power supply.
As the present embodiment signal rather than limit, the present embodiment can also be in first switch circuit 206 and anti-sparking
It connects between the Pin203 of connecting pin a current-limiting resistance, to carry out the adjustment of size of current to the charging current to load capacitance C1,
It is shown in Figure 3, a current-limiting resistance of connecting between the drain electrode " D " and anti-sparking connecting pin Pin203 of the first power switch tube
R1.As the signal of the present embodiment, the current-limiting resistance R1 of the present embodiment is realized using small valued resistor, to reduce charging energy consumption,
The charge efficiency to load capacitance C1 is improved, be in a very short period of time full of load capacitance C1 or be full of as far as possible.
It is shown in Figure 4, as the signal of the present embodiment, can also be driven in the output end of voltage regulator circuit 204 and first
The first delay circuit 401, the direct current that the first delay circuit 401 exports voltage regulator circuit 204 are connected between the input terminal of circuit 205
Output is to first switch circuit 206 after the delay of the first duration T1 of voltage signal progress, to realize in anti-sparking connecting pin
Pin203, power supply second electrode end Pin202 be electrically connected with the first electrode end Pin301 of load, second electrode end Pin302
Afterwards, first switch circuit 206 is just connected after the first duration T1 of delay, charges, is avoided in electrode end in contact wink to load capacitance C1
Between shake caused by shakiness determining voltage signal be input to first switch circuit 206, influence first switch circuit 206 use the longevity
Life, is conducive to improve the safety and stability of anti-firing circuit using the present embodiment technical solution.
Wherein, as the signal of the present embodiment, if the first electrode end Pin201 of power supply, anti-sparking connecting pin Pin203 with
First electrode end Pin301, second electrode end Pin302 the electrical connection time of load are relative to power supply, the first electrode with load
Hold the when a length of duration T0 that Pin301, second electrode end Pin302 the electrical connection time are early, the first duration of the first delay circuit 401
T1<T0。
It is shown in Figure 5, a diode D1, the diode are also in series on the first switch circuit 206 of the present embodiment
The second electrode of D1 is electrically connected with the second electrode end Pin202 of power supply, and first electrode is electrically connected with first switch circuit 206, if
The generation that diode D1 is conducive to avoid reverse current is set, diode D1 can be, but not limited to select Schottky diode.
Embodiment 3:
Referring to Fig. 6,2 differences of the anti-firing circuit of power connection provided in this embodiment and embodiment are essentially consisted in:
The anti-firing circuit of the present embodiment still further comprises second switch circuit 601, for driving second switch circuit
601 the second driving circuit 602.
Second switch circuit 601 is connected electrically between anti-sparking connecting pin Pin203 and the second electrode of power supply, works as power supply
When the charging duration to charge to load capacitance C1 reaches scheduled second duration T2, the second driving circuit 602 drives second switch
Circuit 601 is connected, after the conducting of second switch circuit 601, the second electrode end of anti-sparking connecting pin Pin203 and power supply
The second electrode end Pin302 short circuit connection of Pin202, second electrode and load are connected to the second electrode of power supply and prevent beating
First switch circuit 206 between fiery connecting pin Pin203 is bypassed by above-mentioned short circuit connection circuit, is input to pressure stabilizing at this time
The input voltage of circuit 204 is equal to 0, and first switch circuit 206 disconnects, and the power consumption of circuit is 0.
The present embodiment circuit other than the beneficial effect with embodiment 2, further have it is below the utility model has the advantages that
User carry out when patching of power connector, may due to user's operation make mistakes or power connection failure itself,
It is likely to occur the first electrode end Pin201 of power supply, the first electrode end Pin301 of anti-sparking connecting pin Pin203 and load, the
Two electrode tip Pin302 electrical connection after some time interior power second electrode end Pin202 also not with the second electrode end of load
The situation of Pin302 electrical connection is stopped at this point, anti-firing circuit actively can be bypassed to circuit using the present embodiment technical solution
Circuit work, advantageously reduces power supply energy consumption.
Shown in Figure 7, as a signal of the present embodiment, the second switch circuit 701 of the present embodiment can use one
Power switch tube (being denoted as the second power switch tube Q2) is realized.The second power switch tube Q2 realized using N-channel MOS pipe, the
The grid " G " of two power switch tube Q2 is electrically connected with the output end of the second driving circuit 602, the negative electricity of source electrode " S " and power supply
Connection, drain electrode " D " are electrically connected with anti-sparking connecting pin Pin203.When the electricity for the grid " G " for being input to the second power switch tube Q2
When pressure is the positive voltage of predetermined voltage, the second power switch tube Q2 conducting.
Shown in Figure 8, as another signal of the present embodiment, the second switch circuit 801 of the present embodiment can be used
The circuit for at least two power switch tubes composition being connected in series realizes that the control terminal of each second power switch tube drives with second jointly
The output end of circuit 602 is electrically connected.Meaning shown in Figure 8 can similarly with Fig. 7 be realized, each metal-oxide-semiconductor using N-channel MOS pipe
Grid " G " be electrically connected jointly with the output end of the second driving circuit 602, source electrode " S " is electrically connected with the cathode of power supply jointly, leakage
Pole " D " is electrically connected with anti-sparking connecting pin Pin203 jointly.
Shown in Figure 9, as another signal of the present embodiment, the second switch circuit 901 of the present embodiment can be used
The circuit for at least two second power switch tubes composition being in parallel realizes that the control terminal of each second power switch tube is jointly with second
The output end of driving circuit 602 is electrically connected.
Embodiments described above does not constitute the restriction to the technical solution protection scope.It is any in above-mentioned implementation
Made modifications, equivalent substitutions and improvements etc., should be included in the protection model of the technical solution within the spirit and principle of mode
Within enclosing.
Claims (14)
1. a kind of anti-firing circuit of power connection, the power connection includes first electrode end, second electrode end, first electricity
Extremely, second electrode end is electrically connected with the first electrode of power supply body, second electrode respectively, the first electrode, second electrode
One of for anode, it is another be negative pole end, characterized in that
The anti-firing circuit of power connection includes:
The anti-sparking connecting pin, is coupled in the second electrode side of the power supply, and the anti-sparking connecting pin is longer than the power supply
The second electrode end of connector makes when the power supply and the power connection of load mutually patch, the anti-sparking connecting pin with it is described
The electrical connection time at the second electrode end of load is earlier than the second electrode end of the power connection and the second electrode of the load
The electrical contact Connection Time at end,
Voltage regulator circuit, input terminal access the voltage between the anti-sparking connecting pin and the second electrode of the power supply, output end
It is electrically connected with the input terminal for driving the first driving circuit of first switch circuit,
First driving circuit, output end are electrically connected with the control terminal of the first switch circuit；
The first switch circuit is coupled between the second electrode of the power supply and the anti-sparking connecting pin, when the electricity
It is described when the first electrode end in source, anti-sparking connecting pin are electrically connected with the first electrode end of the load, second electrode end respectively
First switch circuit is in the conductive state, and the power supply is charged by the first switch circuit to the load capacitance of load end,
When the second electrode end of the power supply is electrically connected with the second electrode end of the load, the anti-sparking connecting pin and the electricity
The second electrode end in source, second electrode, the mutually short circuit of the second electrode of the load.
2. the anti-firing circuit of power connection according to claim 1, characterized in that further include:
First delay circuit is connected electrically between the output end of the voltage regulator circuit and the input terminal of first driving circuit.
3. the anti-firing circuit of power connection according to claim 1, characterized in that further include:
The first switch circuit includes: the first power switch tube, the control terminal of first power switch tube and described first
The output end of driving circuit is electrically connected, the two switch terminals second electrode phase coupling with the anti-sparking connecting pin, the power supply respectively
It connects.
4. the anti-firing circuit of power connection according to claim 3, characterized in that
The first electrode is anode, and second electrode is cathode,
First power switch tube is N-channel MOS switching tube, the grid of first power switch tube and first driving
The output end of circuit is electrically connected, and the cathode of source electrode and the power supply mutually couples, and is drained and is mutually coupled with the anode of the power supply.
5. the anti-firing circuit of power connection according to claim 1, characterized in that
Second switch circuit is connected electrically between anti-sparking connecting pin and the second electrode of the power supply, when the power supply
When the charging duration to charge to the load capacitance is equal to or more than scheduled second duration, the second switch circuit is in and leads
Logical state, the anti-sparking connecting pin is connect with the second electrode of the power supply, second electrode terminal shortcircuit；
Second driving circuit, for driving the second switch circuit on or off.
6. the anti-firing circuit of power connection according to claim 5, characterized in that
The second switch circuit includes: the second power switch tube.
7. the anti-firing circuit of power connection according to claim 6, characterized in that
The first electrode is anode, and second electrode is cathode,
Second power switch tube is N-channel MOS switching tube, the grid of second power switch tube and second driving
The output end of circuit is electrically connected, and source electrode is electrically connected with the cathode of the power supply, and drain electrode is electrically connected with the anti-sparking connecting pin.
8. the anti-firing circuit of power connection according to claim 5, characterized in that
The second switch circuit includes: the circuit being made of at least two power switch tubes being in parallel,
The control terminal of each power switch tube is electrically connected with the output end of second driving circuit jointly, and each power is opened
Two switch terminals for closing pipe are electrically connected with the second electrode of the anti-sparking connecting pin, the power supply respectively.
9. the anti-firing circuit of power connection according to claim 5, characterized in that
The second switch circuit includes: the circuit being made of at least two second power switch tubes being connected in series,
The control terminal of each second power switch tube is electrically connected with the output end of second driving circuit jointly.
10. according to claim 1 to 9 any anti-firing circuit of power connection, characterized in that
Current-limiting resistance is also in series between the anti-sparking connecting pin and the first switch circuit.
11. a kind of power supply, characterized in that include:
Power supply body；
Power connection, including first electrode end, second electrode end, the first electrode end, second electrode end respectively with the electricity
The first electrode of source ontology, second electrode electrical connection, one of the first electrode, second electrode be with anode, it is another
For cathode；
Any anti-firing circuit of power connection of claims 1 to 10；
The length of the anti-firing circuit connecting pin is longer than the second electrode end of the power connection, the length at the first electrode end
Degree is longer than the second electrode end of the power connection, makes when the power supply and the power connection of the load mutually patch, described
Anti- sparking connecting pin and the second electrode end of the load be electrically connected second electrode end of the time earlier than the power connection and
The electrical contact Connection Time at the second electrode end of the load.
12. power supply according to claim 11, characterized in that
The power supply body is rechargeable battery.
13. power supply according to claim 12, characterized in that
The power supply body is lithium ion battery.
14. power supply according to claim 11, characterized in that
The power supply body is lithium ion battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821342231.0U CN208782474U (en) | 2018-08-20 | 2018-08-20 | The anti-firing circuit of power connection and the power supply with the circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821342231.0U CN208782474U (en) | 2018-08-20 | 2018-08-20 | The anti-firing circuit of power connection and the power supply with the circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208782474U true CN208782474U (en) | 2019-04-23 |
Family
ID=66157481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821342231.0U Withdrawn - After Issue CN208782474U (en) | 2018-08-20 | 2018-08-20 | The anti-firing circuit of power connection and the power supply with the circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208782474U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108767837A (en) * | 2018-08-20 | 2018-11-06 | 深圳市格瑞普智能电子有限公司 | Power supply connection method and the anti-firing circuit of power connection and the power supply with the circuit |
-
2018
- 2018-08-20 CN CN201821342231.0U patent/CN208782474U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108767837A (en) * | 2018-08-20 | 2018-11-06 | 深圳市格瑞普智能电子有限公司 | Power supply connection method and the anti-firing circuit of power connection and the power supply with the circuit |
| CN108767837B (en) * | 2018-08-20 | 2023-10-13 | 深圳市格瑞普智能电子有限公司 | Power connection method, power connector anti-sparking circuit and power with circuit |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190423 Effective date of abandoning: 20231013 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190423 Effective date of abandoning: 20231013 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |