CN207337198U - Preliminary filling board test device - Google Patents
Preliminary filling board test device Download PDFInfo
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- CN207337198U CN207337198U CN201721120622.3U CN201721120622U CN207337198U CN 207337198 U CN207337198 U CN 207337198U CN 201721120622 U CN201721120622 U CN 201721120622U CN 207337198 U CN207337198 U CN 207337198U
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- preliminary filling
- charging capacitor
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Abstract
It the utility model is related to a kind of preliminary filling board test device, the preliminary filling board test device, including：Pre-charging capacitor, the pre-charging capacitor are the equivalent capacity of battery of electric vehicle；Charging circuit, the charging circuit are electrically connected with the pre-charging capacitor, for being charged by preliminary filling plate for pre-charging capacitor；Discharge circuit, the discharge circuit are electrically connected with the pre-charging capacitor, for discharging for pre-charging capacitor；Control device, control preliminary filling plate charge to pre-charging capacitor and control opening for discharge circuit to discharge with shut-off pre-charging capacitor.Preliminary filling board test device provided by the utility model, the test to preliminary filling plate is completed by control device.The setting of the preliminary filling board test device reduces staff's manual operations, and testing efficiency is high, and test data is accurate.
Description
Technical field
Detection device is the utility model is related to, more particularly to a kind of preliminary filling board test device.
Background technology
The preliminary filling plate of electric automobile be the power apparatus in electric automobile high-voltage power up to electric automobile capacitance into
The control panel of line precharge, the normal work of the preliminary filling plate are just avoided that the wink occurred in power up more than rated current several times
Between dash current, avoid the damage to the contact of the fuse and high pressure of electric automobile, be electric automobile important control unit it
One.But preliminary filling plate relies primarily on tester's manual test parameters point, to complete preliminary filling during production testing
Exfactory inspection.
Preliminary filling plate is carried out in conventional art to use manual operations during preliminary filling test, it is higher yet with control voltage
(500V), the safety of tester cannot ensure, and testing efficiency hand-manipulated, than relatively low, test data counts difficulty
Greatly.
Utility model content
Based on this, it is necessary to which manual operations, testing efficiency are than relatively low during for the progress preliminary filling test of preliminary filling plate, test data
Count the big problem of difficulty, there is provided a kind of preliminary filling board test device.
A kind of preliminary filling board test device, including：
Pre-charging capacitor, the pre-charging capacitor are the equivalent capacity of battery of electric vehicle；
Charging circuit, the charging circuit are electrically connected with the pre-charging capacitor, for being filled by preliminary filling plate for pre-charging capacitor
Electricity；
Discharge circuit, the discharge circuit are electrically connected with the pre-charging capacitor, for discharging for pre-charging capacitor；
Control device, control preliminary filling plate is to pre-charging capacitor charging and controls opening and turning off to precharge for discharge circuit
Discharge capacitor.
Above-mentioned preliminary filling board test device, the test to preliminary filling plate is completed by control device.Preliminary filling board test device is set
Putting reduces staff's manual operations, and testing efficiency is high, and test data is accurate.
In one of the embodiments, the charging circuit includes preliminary filling resistance, and the preliminary filling resistance is electrically connected to described
Between preliminary filling plate and the pre-charging capacitor, for the current limliting to charging circuit.
In one of the embodiments, the discharge circuit includes discharge resistance, the discharge resistance and the precharge
Hold and be electrically connected, for discharging the pre-charging capacitor.
In one of the embodiments, the control device includes control unit, charge switch and discharge switch, the control
Unit processed is used to receive test signal, and control instruction is sent according to the test signal；The charge switch, which is used to control, to charge
Circuit being opened and turning off；The discharge switch is used to control opening and turning off for discharge circuit.
In one of the embodiments, the control device includes voltage sampling circuit, defeated for gathering the preliminary filling plate
Outlet and the voltage of the pre-charging capacitor input terminal, and the voltage is handled to obtain sampled signal.
In one of the embodiments, the control device further includes power circuit, for being provided for the control device
Power supply.
In one of the embodiments, the control device further includes reset circuit, for when the circuit in control device
Resetted when being abnormal.
In one of the embodiments, display device is further included, the display device is communicated to connect with the control device,
For showing preliminary filling information.
In one of the embodiments, the display device includes default unit, and the default unit is used to preset preliminary filling
Number and pre-charge pressure, and the preset times and predeterminated voltage are sent to the control device.
Brief description of the drawings
Fig. 1 is the preliminary filling board test device module map that the utility model embodiment provides；
Fig. 2 is the preliminary filling board test device circuit diagram that the utility model embodiment provides；
Fig. 3 is the preliminary filling board test device module map that another embodiment of the utility model provides；
Fig. 4 is the preliminary filling board test device control method flow chart that the utility model embodiment provides；
Fig. 5 is the preliminary filling board test device control method flow chart that another embodiment of the utility model provides.
Wherein：
100- preliminary filling board test devices；
110- charging circuits；
120- pre-charging capacitors；
130- discharge circuits；
140- control devices；
142- power circuits；
144- control units；
146- voltage sampling circuits；
148- reset circuits；
150- display devices；
151- presets unit.
Embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing to this reality
It is further elaborated with new preliminary filling board test device and preliminary filling board test device control method.It should be appreciated that this
Locate described specific embodiment only to explain the utility model, be not used to limit the utility model.
Referring to Fig. 1, the utility model one embodiment, there is provided a kind of preliminary filling board test device 100, including：Precharge
Hold 120, charging circuit 110, discharge circuit 130 and control device 140.Wherein pre-charging capacitor 120 is the equivalent of battery of electric vehicle
Capacitance.The size of 120 capacity of pre-charging capacitor can be determined according to being actually needed.Charging circuit 110 is used for by preliminary filling plate T1
Pre-charging capacitor 120 charges.Discharge circuit 130 is used to discharge for pre-charging capacitor 120.Control device 140 is used to control preliminary filling plate T1
Charge to pre-charging capacitor 120 and control opening for discharge circuit 130 to discharge with shut-off pre-charging capacitor 120.
The preliminary filling board test device 100 that above-described embodiment provides, the survey to preliminary filling plate T1 is completed by control device 140
Examination.The setting of preliminary filling board test device 100 reduces staff's manual operations, and testing efficiency is high, and test data is accurate.
Referring to Fig. 2, specifically, preliminary filling plate T1 input terminals side is electrically connected extraneous high voltage power supply, opposite side is electrically connected control
The output terminal of device 140 processed.The output terminal of preliminary filling plate T1 is electrically connected charging circuit 110, and the access that can connect of pre-charging capacitor 120 is filled
In circuit 110, charging circuit 110 is used to charge for pre-charging capacitor 120.One end of charge switch K1 is electrically connected extraneous high-voltage electricity
Source, the other end are electrically connected 120 input terminal of pre-charging capacitor.Control device 140 is electrically connected with charge switch K1, and control device 140 can
To be charged by controlling the closure of charge switch K1 to stop charging circuit 110 to pre-charging capacitor 120.Further, the preliminary filling
Capacitance 120, which can connect, accesses discharge circuit 130, discharges for pre-charging capacitor 120.Discharge switch K2 one end is electrically connected pre-charging capacitor
120 input terminals, the other end are electrically connected discharge resistance R2, and control device 140 is by controlling the closure of discharge switch K2 as precharge
Hold 120 electric discharges.
In one embodiment, charging circuit 110 includes preliminary filling resistance R1, and the preliminary filling resistance R1 is electrically connected to described
Between preliminary filling plate T1 and the pre-charging capacitor 120, for the current limliting to charging circuit 110.Specifically, preliminary filling resistance R1 series connections
Enter in charging circuit 110, preliminary filling resistance R1 is in parallel with charge switch K1 after connecting with pre-charging capacitor 120.Charge switch K1's closes
Close and disconnect and be used to control opening and turning off for charging circuit 110.Preliminary filling resistance R1 is preliminary filling plate T1 to be measured to pre-charging capacitor 120
The current-limiting resistance of charging.The resistance value of preliminary filling resistance R1 is unlimited, can be determined according to the needs of actual circuit, as long as completing to filling
The current limliting of circuit 110, prevents in 120 charging process of pre-charging capacitor, the electric current in charging circuit 110 is excessive, and damage is filled
This function of circuit 110.
In one embodiment, discharge circuit 130 includes discharge resistance R2, discharge resistance R2 and the electricity of pre-charging capacitor 120
Connection, for discharging to pre-charging capacitor 120.Specifically, discharge resistance R2 forms discharge circuit with pre-charging capacitor 120.Electric discharge electricity
Resistance R2 is connected in series with pre-charging capacitor 120 and discharge switch K2.The closed and disconnected control discharge circuit 130 of discharge switch K2
Open and turn off.The setting of discharge resistance R2 matches with pre-charging capacitor 120, for completing the electric discharge of pre-charging capacitor 120.Put
The resistance value of resistance R2 can be determined according to the size of pre-charging capacitor 120, as long as completing in the mistake discharged pre-charging capacitor 120
Discharge circuit 130 this function will not be damaged by ensureing the electric current of discharge circuit 130 in journey.
Also referring to Fig. 3, in one embodiment, control device 140 includes control unit 144, charge switch K1
With discharge switch K2.Control unit 144 is electrically connected with charge switch K1, discharge switch K2.Control unit 144 is controlled by sending
The closed and disconnected of order control charge switch K1 and discharge switch K2, so as to control charging circuit 110 and discharge circuit respectively
130 opening and turn off.Control unit 144 is used to receive test signal, and control instruction is sent according to the test signal.Control
Unit 144 is the core control portions of control device 140, and control unit 144 can be MCU control unit.Charge switch K1 is used
Opening and turning off in control charging circuit 110.Discharge switch K2 is used to control opening and turning off for discharge circuit 130.Wherein,
Charge switch K1 can be preliminary filling contactor, and preliminary filling contactor connection high voltage input terminal, high input voltage terminal voltage is HV_IN+, high
Pressure input terminal is charged by preliminary filling resistance R1 to pre-charging capacitor 120.When the voltage at 120 both ends of pre-charging capacitor is more than 0.9 times of HV_
During IN+, preliminary filling contactor is closed, preliminary filling charging process is completed.Wherein, discharge switch K2 can be electric discharge relay.Electric discharge after
Electric appliance is electrically connected with discharge resistance R2.When preliminary filling contactor closes, after preliminary filling charging complete, the voltage in pre-charging capacitor 120 reaches
To HV_IN+, when being tested for next time, the pre-charging capacitor 120 of preliminary filling plate T1 preliminary filling, control unit 144 since 0 voltage pass through
Control electric discharge relay closure, is discharged with discharge resistance R2 to pre-charging capacitor 120.
In one embodiment, control device 140 includes voltage sampling circuit 146.Voltage sampling circuit 146 is used to adopt
Collect the voltage of preliminary filling plate T1 output terminals and 120 input terminal of pre-charging capacitor, and the voltage is handled to obtain sampling letter
Number.Specifically, voltage sampling circuit 146 can gather the voltage of preliminary filling plate T1 output terminals and the pre-charging capacitor input terminal, i.e.,
The voltage of B points and A points in Fig. 2 is gathered, passes through AD of the voltage change circuit transformations into appropriate control source to control unit 144
Port, is converted into digital signal by voltage signal in the AD ports of control unit 144 and is input to control unit 144, so as to complete
Analog-to-digital conversion.Alternatively, voltage sampling circuit 146 can also gather preliminary filling plate T1 output terminals and 120 input terminal of pre-charging capacitor
Between voltage, that is, gather voltage between B points and A points in Fig. 1, the voltage between B points and A points can also pass through voltage change
AD port of the circuit transformations into appropriate control source to control unit 144, in the AD ports of control unit 144 by voltage signal
It is converted into digital signal and is input to control unit 144, so as to completes analog-to-digital conversion.
In one embodiment, control device 140 further includes power circuit 142, for being carried for the control device 140
Power supply source.Power circuit 142 can be converted to the power supply in circuit can unit 144 is powered in order to control power supply.That is power supply
24V power conversions can be used to power to MCU control unit by circuit 142 into 5V power supplys.Further, control device 140 is gone back
Including reset circuit 148, reset circuit 148 is used to be resetted when the circuit abnormal in control device 140.Work as control
When circuit signal in device 140 is abnormal, reset circuit 148 receives abnormal signal and circuit can be carried out at reset
Reason.Reset circuit 148 both can guarantee that the reset of MCU control unit or can ensure voltage sampling circuit 146 in control device 140
Reset, the setting of reset circuit 148 ensure that the reliable reset of control device 140.
In one of the embodiments, preliminary filling board test device 100 further includes display device 150, display device 150 and control
Device 140 processed communicates to connect, for showing preliminary filling information.Preliminary filling information mainly includes pre-charge pressure, pre-charging time, and preliminary filling starts
Voltage, preliminary filling number and test abnormal alarm prompting.Further, display device 150 includes default unit 151, described pre-
If unit 151 is used to preset preliminary filling number and pre-charge pressure, and the preset times and predeterminated voltage are sent to the control
Device 140.Specifically, display unit can be LCD display unit.The preliminary filling of test preliminary filling plate can be set in an lcd
Number, pre-charge pressure., can be by CAN bus by preliminary filling number after preliminary filling number and the pre-charge pressure of preliminary filling plate are set
MCU control unit is sent to pre-charge pressure information, so as to start test.
Also referring to Fig. 4, the utility model one embodiment, there is provided a kind of preliminary filling board test device control method, bag
Include：
S100, obtains and starts preliminary filling signal；
S200, gathers pre-charge pressure, judges whether pre-charge pressure is qualified；
S300, if pre-charge pressure is qualified, is charged by preliminary filling plate T1 for pre-charging capacitor 120；
S400, gathers the voltage between 120 input terminal of preliminary filling plate T1 output terminals and pre-charging capacitor；
S500, if the voltage between 120 input terminal of preliminary filling plate T1 output terminals and pre-charging capacitor is less than critical voltage and preliminary filling
120 input terminal voltage of capacitance is more than control voltage, and test is normal, and preserves data；
S600, obtains preliminary filling end signal, is discharged by discharge circuit 130 for pre-charging capacitor 120；
S700, gathers preliminary filling plate T1 output end voltages, judges whether preliminary filling plate T1 output end voltages are less than critical voltage；
S800, if preliminary filling plate T1 output end voltages are less than critical voltage, disconnects discharge switch, test terminates.
Specifically, the control unit 144 in control device 140 is got after starting preliminary filling signal, control unit 144 passes through
Voltage sampling circuit 146 gathers the voltage of preliminary filling plate T1 output terminals and 120 input terminal of pre-charging capacitor.Preliminary filling plate T1 is exported
Terminal voltage carries out the pre-charge pressure collected processing and passes through voltage change circuit transformations into appropriate voltage as pre-charge pressure
The AD ports of control unit 144 are input to, voltage signal is converted into digital signal in the AD ports of control unit 144 is input to
Control unit 144.Whether the pre-charge pressure that the judgement of control unit 144 collects is qualified.If pre-charge pressure is qualified, pass through preliminary filling
Plate T1 charges for pre-charging capacitor 120.
Further, control unit 144 gathers preliminary filling plate T1 output terminals and pre-charging capacitor by voltage sampling circuit 146
Voltage between 120 input terminals.The voltage swing for judging to collect through control unit 144, if the preliminary filling plate T1 outputs collected
Voltage between end and pre-charging capacitor input terminal is less than critical voltage and pre-charging capacitor input terminal voltage is more than control voltage, test
Normally, data are preserved and.Wherein critical voltage can be 1V but be not limited to 1V.The size of critical voltage can be according to actual needs
To determine.It can be 500V to control voltage, but is not limited to 500V, control the size of voltage can be according to the control of actual preliminary filling plate T1
The size of voltage processed determines.
Further, control unit 144 obtains preliminary filling end signal, and control unit 144 sends close command to electric discharge and opens
K2 is closed, closes discharge switch K2, is discharged by discharge circuit 130 for pre-charging capacitor 120.Further, control unit 144 is logical
Overvoltage sample circuit 146 gathers preliminary filling plate T1 output end voltages, judges whether preliminary filling plate T1 output end voltages are less than critical electricity
Pressure.If preliminary filling plate T1 output end voltages are greater than or equal to critical voltage, continue to gather preliminary filling plate T1 output end voltages.If preliminary filling
Plate T1 output end voltages then send open command to discharge switch K2 less than critical voltage, disconnect discharge switch K2, test knot
Beam.
Please refer to fig. 5, in one of the embodiments, the control unit 144 in control device 140 starts in acquisition
After preliminary filling signal, program brings into operation.Clock initialization and peripheral hardware initialization command is first carried out, it is defeated by default unit 151
Enter test command, control unit 144 judges whether to receive beginning test command, and next journey is carried out after test command is received
Sequence, when control unit 144 is not received by test command, then continues to test command.
After control unit 144 receives test command, preliminary filling enable signal is sent to preliminary filling test board T1, preliminary filling test
Plate T1 reads preliminary filling enable signal.Control unit 144 gathers the voltage of A points and B points by voltage sampling circuit 146.
Control unit 144 judges whether pre-charge pressure is qualified.If pre-charge pressure is qualified, delay 200ms reads A points and B
Point voltage.If pre-charge pressure is unqualified, sending aberrant commands to display device 150, display device 150 can show that voltage is different
Normal information, and preserve electric voltage exception data.
Further, control unit 144 judges whether charge switch K1 closes, if charge switch K1 is closure state, sentences
The voltage of disconnected A points and B points, if A points and the voltage of B points are more than 500V less than 1V and A points voltage, test is normal, and preserves data.
If judging, the voltage between A points and B points is less than or equal to 500V more than or equal to 1V or A points voltage, sends abnormal signal to display
Unit.
If charge switch K1 is off-state, sends abnormal signal to display device 150, display device 150 and show pre-
Fill plate fault message.
Further, control unit 144 obtains preliminary filling end signal, is put by discharge circuit 130 for pre-charging capacitor 120
Electricity.The 50ms control units 144 that are delayed send close command to discharge switch K2, close discharge switch K2.B point voltages are gathered,
Judge whether preliminary filling plate output end voltage is less than 1V.If B points voltage is greater than or equal to 1V, continue to gather preliminary filling plate output terminal electricity
Pressure.The 50ms that is delayed if preliminary filling plate output end voltage is less than 1V sends open command to discharge switch K2, discharge switch K2 is broken
Open, test terminates.
The preliminary filling board test device control method that the utility model embodiment provides, collection preliminary filling is controlled by control device
Board test signal, completes the test of preliminary filling plate.The preliminary filling board test device control method that the utility model embodiment provides is to pre-
Automatic detection can be realized by filling plate and carrying out test, reduce staff's manual operations, and testing efficiency is high, and test data is accurate
Really.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the utility model, its description is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that the common skill for this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (9)
- A kind of 1. preliminary filling board test device, it is characterised in that including：Pre-charging capacitor, the pre-charging capacitor are the equivalent capacity of battery of electric vehicle；Charging circuit, the charging circuit are electrically connected with the pre-charging capacitor, for being charged by preliminary filling plate for pre-charging capacitor；Discharge circuit, the discharge circuit are electrically connected with the pre-charging capacitor, for discharging for pre-charging capacitor；Control device, control preliminary filling plate charge to pre-charging capacitor and control opening for discharge circuit to be received with shut-off to precharge Electricity.
- 2. preliminary filling board test device according to claim 1, it is characterised in that the charging circuit includes preliminary filling resistance, The preliminary filling resistance is electrically connected between the preliminary filling plate and the pre-charging capacitor, for the current limliting to charging circuit.
- 3. preliminary filling board test device according to claim 1, it is characterised in that the discharge circuit includes discharge resistance, The discharge resistance is electrically connected with the pre-charging capacitor, for discharging the pre-charging capacitor.
- 4. preliminary filling board test device according to claim 1, it is characterised in that the control device include control unit, Charge switch and discharge switch, described control unit are used to receive test signal, and control instruction is sent according to the test signal； The charge switch is used to control opening and turning off for charging circuit；The discharge switch be used for control discharge circuit open with Shut-off.
- 5. preliminary filling board test device according to claim 1, it is characterised in that the control device includes voltage sample electricity Road, for gathering the voltage of the preliminary filling plate output terminal and the pre-charging capacitor input terminal, and to the voltage handle To sampled signal.
- 6. preliminary filling board test device according to claim 1, it is characterised in that the control device further includes power supply electricity Road, for providing power supply for the control device.
- 7. preliminary filling board test device according to claim 1, it is characterised in that the control device further includes reset electricity Road, for being resetted when the circuit abnormal in control device.
- 8. preliminary filling board test device according to claim 1, it is characterised in that further include display device, the display dress Put and communicated to connect with the control device, for showing preliminary filling information.
- 9. preliminary filling board test device according to claim 8, it is characterised in that the display device includes default unit, The default unit is used to preset preliminary filling number and pre-charge pressure, and the preset times and predeterminated voltage are sent to the control Device processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721120622.3U CN207337198U (en) | 2017-09-01 | 2017-09-01 | Preliminary filling board test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721120622.3U CN207337198U (en) | 2017-09-01 | 2017-09-01 | Preliminary filling board test device |
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| Publication Number | Publication Date |
|---|---|
| CN207337198U true CN207337198U (en) | 2018-05-08 |
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ID=62371246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721120622.3U Active CN207337198U (en) | 2017-09-01 | 2017-09-01 | Preliminary filling board test device |
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| CN (1) | CN207337198U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107368065A (en) * | 2017-09-01 | 2017-11-21 | 银隆新能源股份有限公司 | Preliminary filling board test device and preliminary filling board test device control method |
| CN110221214B (en) * | 2019-04-30 | 2021-11-19 | 蜂巢能源科技有限公司 | Battery pack pre-charging function detection device and method |
-
2017
- 2017-09-01 CN CN201721120622.3U patent/CN207337198U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107368065A (en) * | 2017-09-01 | 2017-11-21 | 银隆新能源股份有限公司 | Preliminary filling board test device and preliminary filling board test device control method |
| CN107368065B (en) * | 2017-09-01 | 2024-05-03 | 银隆新能源股份有限公司 | Pre-filled plate testing device and control method thereof |
| CN110221214B (en) * | 2019-04-30 | 2021-11-19 | 蜂巢能源科技有限公司 | Battery pack pre-charging function detection device and method |
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