CN104691350A - Discharging device for residual power of high-voltage part of electric car - Google Patents
Discharging device for residual power of high-voltage part of electric car Download PDFInfo
- Publication number
- CN104691350A CN104691350A CN201510085297.0A CN201510085297A CN104691350A CN 104691350 A CN104691350 A CN 104691350A CN 201510085297 A CN201510085297 A CN 201510085297A CN 104691350 A CN104691350 A CN 104691350A
- Authority
- CN
- China
- Prior art keywords
- voltage
- light coupling
- circuit
- coupling relay
- relay
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
An embodiment of the invention provides a discharging device for residual power of a high-voltage part of an electric car. The device comprises a constant electric switching circuit, a high-voltage relay control circuit and a high-voltage discharging circuit, wherein when the electric car is in a high-voltage discharging status, a first optic-coupling relay in the constant electric switching circuit receives low-voltage power supply voltage input externally and transmits the low-voltage power supply voltage to the high-voltage relay control circuit; the output end of a second optic-coupling relay in the high-voltage relay control circuit transmits the low-voltage power supply voltage to the high-voltage discharging circuit; a resistance discharging network in the high-voltage discharging circuit discharges the residual power between the high-voltage anode and cathode buses in a high-voltage control box. When the discharging device is used for disassembling and overhauling the high-voltage part, the high-voltage residual power of the whole high-voltage system can be discharged only by pressing a manual discharging switch, so that the voltage for a human body is safe, the residual power of the high-voltage part does not need to be measured manually by a multimeter, the time is saved, the safety is high and safe operation is facilitated.
Description
Technical field
The present invention relates to electric vehicle engineering field, particularly relate to a kind of electric discharge device of the remaining electricity of high voltage component of electronlmobil.
Background technology
The bridge that high pressure control box is connected with high-voltage electrical apparatus parts as power accumulator, plays the effect such as power distribution, high voltage protective.The HVDC input end of the high voltage parts of electronlmobil is Parallel Design, and high voltage parts is mostly with larger electric capacity, and the total capacitance of whole high-pressure system is each high voltage parts institute capacitor sum.
For ensureing to power on safety, when power accumulator high pressure powers on, precharge loop must be started, precharge loop is primarily of pre-charge-relay, pre-charge resistance forms, current designing requirement is after pre-charge process, pre-charge pressure reaches 95% of power accumulator maximum voltage, pre-charge resistance selection resistance is the metal aluminum hull power resistor of 50 Ω/100W, the total capacitance value of high-pressure system is probably 1500 μ F, according to single order zero state response circuit, known timeconstantτ=R*C=50*1500*10-6=75ms, pre-charge pressure reaches the time constant that 95% of power accumulator total voltage probably needs three times, also about 3 τ=225ms are namely had.
The power accumulator charging of electronlmobil terminates or under car load after electricity, whole high tension loop is in off position, remaining electricity in theory in high voltage parts electric capacity can be preserved always, but due to the existence of distributed capacitance, insulation resistance etc., in fact the remaining electricity in high voltage parts electric capacity can slowly be released, but may need the longer time.
For the high voltage parts that the capacitances such as electric machine controller are larger, in its internal capacitance, remaining capacitance is larger, and when maintenance, maintenance, replacing, staff touches these high voltage parts high input voltage DC terminal can bring electrical shock hazard.If this mistiming is by high pressure both positive and negative polarity short circuit, electric capacity produces larger current instantaneously, brings fatal harm.
Concerning service personnel, during dismounting and change high voltage parts, all need to adopt multi-meter to measure high voltage parts port and whether also there is high-voltage residual-electricity, only have high-voltage residual-electricity just can operate lower than during human safety voltage 36V, so release extremely important to human safety voltage by the high-voltage residual-electricity that high voltage parts exists before dismounting associated components.
Can read the high-tension numerical value of current car load from gauge panel when car load high pressure powers on, but when electric under car load high pressure, gauge panel does not work, cannot judge whether high voltage component also has remaining electricity.Whether a kind of high voltage parts port that detects of the prior art with the method for high-voltage residual-electricity is: when maintainer is to some high voltage parts repair and maintenance of electronlmobil, adopts multi-meter whether to measure high voltage parts port with high-voltage residual-electricity.
Whether above-mentioned detection high voltage parts port of the prior art with the shortcoming of the method for high-voltage residual-electricity is: the method relies on manual measurement high voltage bus whether also there is high pressure.Check when overhauling to maintainer and make troubles, and when measuring, need disconnection associated high voltage connector just can measure electricity of whether having a surplus.Further, the method can not carry out discharge process to the high-voltage residual-electricity that high voltage parts port exists.
Summary of the invention
The embodiment provides a kind of electric discharge device of the remaining electricity of high voltage component of electronlmobil, carry out actv. release to realize electricity more than the high voltage component to electronlmobil.
An electric discharge device for the remaining electricity of high voltage component of electronlmobil, comprising: normal electric commutation circuit, high-voltage relay control circuit and high voltage discharge circuit;
Described normal electric commutation circuit, for comprising the first light coupling relay, when described electronlmobil is in high pressure power-down state, receive the low-voltage power supply voltage of outside input, described low-voltage power supply voltage transmission is given described high-voltage relay control circuit by the mouth of described first light coupling relay;
Described high-voltage relay control circuit, for comprising the second light coupling relay and controller that are connected to each other, when described electronlmobil is in high pressure power-down state, the setting voltage that described controller exports is transferred to the input end of described second light coupling relay, and described low-voltage power supply voltage transmission is given described high voltage discharge circuit by the mouth of described second light coupling relay;
Described high voltage discharge circuit, for comprising conductive discharge network, the effluve end point of connection of this conductive discharge network is selected on the high pressure both positive and negative polarity bus in high pressure control box, when after described conductive discharge network reception to described low-voltage power supply voltage, described conductive discharge network carries out discharge process to electricity more than between the high pressure both positive and negative polarity bus in described high pressure control box.
Preferably, described device is arranged in the high pressure control box of electronlmobil, the effluve end point of connection of described conductive discharge network comprises cathode voltage collection point and cathode voltage collection point, described cathode voltage collection point is connected with the positive pole of power accumulator by the high-voltage positive electrode bus of high pressure control box, and described cathode voltage collection point is connected with the negative pole of power accumulator by the negative pole positive electrode bus of high pressure control box.
Preferably, described device also comprises: condition indication circuit, this condition indication circuit comprises the LED 1 and current-limiting resistance R5 that are connected in series with each other, described current-limiting resistance R5 is connected with the mouth of described first light coupling relay, when the mouth of described first light coupling relay exports low-voltage power supply voltage, described LED 1 is lighted.
Preferably, described device also comprises: low-voltage power supply circuit, described low-voltage power supply circuit comprises: starting ignition circuit and charging wake-up circuit, described starting ignition circuit and described charging wake-up circuit are connected in parallel, described charging wake-up circuit and described starting ignition circuit are connected in series anti-reverse diode D1 and D2 respectively, the cathode terminal of described anti-reverse diode D1 and D2 is in parallel, described anti-reverse diode D1 and D2 parallel connection place is connected in series a current-limiting resistance R1 again, and this current-limiting resistance R1 is connected with the light-emitting diode in the input end of described first light coupling relay;
When described electronlmobil is in charge condition, described charging wake-up circuit work; When described electronlmobil is in power-up state, described starting ignition circuit working; When described electronlmobil is in power-down state, by the mouth transmission low-voltage power supply voltage of normal electric feed circuit to described first light coupling relay.
Preferably, described first light coupling relay is closed type photocoupling relay, when described electronlmobil is in charge condition or power-up state, the LEDs ON in the input end of described first light coupling relay, the mouth of described first light coupling relay disconnects; When described electronlmobil is in power-down state, the mouth of described first light coupling relay closes, and described low-voltage power supply voltage transmission is given described high-voltage relay control circuit by the mouth of described first light coupling relay.
Preferably, described high-voltage relay control circuit also comprises dc voltage changer, described dc voltage changer is connected with the mouth of described controller, described first light coupling relay, described second light coupling relay is open type light coupling relay, the mouth of described first light coupling relay is connected with the positive pole of the diode in the input end of described second light coupling relay, and the I/O output port of described controller is connected with the negative pole of the diode in the input end of described second light coupling relay;
When described electronlmobil is in power-down state, described low-voltage power supply voltage transitions is after low-voltage dc voltage by described dc voltage changer, be transferred to described controller, described low-voltage dc voltage is transferred to the negative pole of the light-emitting diode in the input end of described second light coupling relay by the I/O output port of described controller, the low-voltage power supply voltage transmission that the mouth of described first light coupling relay exports is to the positive pole of the light-emitting diode in the input end of described second light coupling relay, LEDs ON in the input end of described second light coupling relay, the mouth of described second light coupling relay closes, the low-voltage power supply voltage transmission of the mouth output of described second light coupling relay gives described high voltage discharge circuit.
Preferably, the I/O output port of described controller is after output low-voltage dc voltage setting-up time, export high-voltage dc voltage to the negative pole of the light-emitting diode in the input end of described second light coupling relay, light-emitting diode in the input end of described second light coupling relay disconnects, and the mouth of described second light coupling relay disconnects.
Preferably, described high voltage discharge circuit also comprises relay switch, and this relay switch is connected with the mouth of described conductive discharge network, described second light coupling relay;
When the mouth of described second light coupling relay outputs low-voltage power supply voltage, the relay switch in described high voltage discharge circuit closes, described conductive discharge network work.
Preferably, described conductive discharge network comprises resistance R4 and R5 be connected in parallel, and described resistance R4 and R5 is connected in series high-voltage insurance Fu2 and Fu3 respectively, when short trouble appears in described resistance R4 and/or R5, disconnects the electrical connection of described conductive discharge network.
The technical scheme provided as can be seen from the embodiment of the invention described above, when the electric discharge device of the embodiment of the present invention is used for dismounting, examination and repair for high-pressure parts, as long as press manual discharge switch can release whole high-pressure system exist high-voltage residual-electricity, reach human safety voltage, and the remaining electricity of multi-meter manual measurement high voltage component need not be adopted, save time, and safety is high, is convenient to safe in operation.
The aspect that the present invention adds and advantage will part provide in the following description, and these will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The electrical connection schematic diagram of electric discharge device in high pressure control box of electricity more than the high voltage component of the electronlmobil that Fig. 1 provides for the embodiment of the present invention one;
The inner structure block diagram of the electric discharge device of electricity more than the high voltage component of a kind of electronlmobil that Fig. 2 provides for the embodiment of the present invention one;
The concrete electrical connection diagram of the electric discharge device of electricity more than the high voltage component of a kind of electronlmobil that Fig. 3 provides for the embodiment of the present invention one;
The discharge process diagram of circuit of the electric discharge device of electricity more than the high voltage component of a kind of electronlmobil that Fig. 4 provides for the embodiment of the present invention two;
The operation being positioned at high pressure control box outside that Fig. 5 provides for the embodiment of the present invention two and display panel schematic diagram.
Detailed description of the invention
Be described below in detail embodiments of the present invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
Those skilled in the art of the present technique are appreciated that unless expressly stated, and singulative used herein " ", " one ", " described " and " being somebody's turn to do " also can comprise plural form.Should be further understood that, the wording used in specification sheets of the present invention " comprises " and refers to there is described feature, integer, step, operation, element and/or assembly, but does not get rid of and exist or add other features one or more, integer, step, operation, element, assembly and/or their group.Should be appreciated that, when we claim element to be " connected " or " coupling " to another element time, it can be directly connected or coupled to other elements, or also can there is intermediary element.In addition, " connection " used herein or " coupling " can comprise wireless connections or couple.Wording "and/or" used herein comprises one or more arbitrary unit listing item be associated and all combinations.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, and all terms used herein (comprising technical term and scientific terminology) have the meaning identical with the general understanding of the those of ordinary skill in field belonging to the present invention.Should also be understood that those terms defined in such as general dictionary should be understood to have the meaning consistent with the meaning in the context of prior art, unless and define as here, can not explain by idealized or too formal implication.
For ease of the understanding to the embodiment of the present invention, be further explained explanation below in conjunction with accompanying drawing for several specific embodiment, and each embodiment does not form the restriction to the embodiment of the present invention.
Embodiment one
More than the high voltage component of a kind of electronlmobil that this embodiment provides, the electrical connection schematic diagram of the electric discharge device of electricity in high pressure control box as shown in Figure 1, the effluve end point of connection of this electric discharge device is selected on the high pressure both positive and negative polarity bus in high pressure control box, be respectively cathode voltage collection point A (HV+) and cathode voltage collection point B (HV-), cathode voltage collection point HV+ is connected with the positive pole of power accumulator by the high-voltage positive electrode bus of high pressure control box, cathode voltage collection point HV-is connected with the negative pole of power accumulator by the negative pole positive electrode bus of high pressure control box.
Because discharge loop is pure resistive loads, do not relate to electric current positive-negative polarity, as long as so the effluve two ends of electric discharge device connect A and B, power to this electric discharge device by low pressure 12V.
The inner structure block diagram of the electric discharge device of the remaining electricity of high voltage component of a kind of electronlmobil that the embodiment of the present invention provides as shown in Figure 2, forms primarily of five parts: low-voltage power supply circuit, normal electric commutation circuit, high-voltage relay control circuit, condition indication circuit and high voltage discharge circuit.
Described normal electric commutation circuit, for comprising the first light coupling relay SW1, when described electronlmobil is in high pressure power-down state, receive the low-voltage power supply voltage of outside input, described low-voltage power supply voltage transmission is given described high-voltage relay control circuit by the mouth of described first light coupling relay SW1.
Described high-voltage relay control circuit, for comprising the second light coupling relay SW2 and controller that are connected to each other, when described electronlmobil is in high pressure power-down state, the setting voltage that described controller exports is transferred to the input end of described second light coupling relay SW2, and described low-voltage power supply voltage transmission is given described high voltage discharge circuit by the mouth of described second light coupling relay SW2;
Described high voltage discharge circuit, for comprising conductive discharge network, the effluve end point of connection of this conductive discharge network is selected on the high pressure both positive and negative polarity bus in high pressure control box, when after described conductive discharge network reception to described low-voltage power supply voltage, described conductive discharge network carries out discharge process to electricity more than between the high pressure both positive and negative polarity bus in described high pressure control box.
Described low-voltage power supply circuit, during for being in charging or power-up state at described electronlmobil, to the input end transmission low-voltage power supply voltage in the first light coupling relay SW1 in described normal electric commutation circuit.
Described condition indication circuit, for being indicated electric automobile to be in power-up state, charge condition or car load lower electricity by the status indicator lamp of light-emitting diode, and is in discharge regime.
The concrete electrical connection diagram of the electric discharge device of the remaining electricity of high voltage component of a kind of above-mentioned electronlmobil that this embodiment provides as shown in Figure 3.As shown in Figure 3, low-voltage power supply circuit comprises: starting ignition circuit and charging wake-up circuit, and wherein, starting ignition circuit and charging wake-up circuit are connected in parallel.Starting ignition circuit is ON electricity (the 12V power supply that ignition lock obtains after starting).
As shown in Figure 3, charging wakes 12V and ON electricity 12V up and is connected in series anti-reverse diode D1 and D2 respectively, then, in parallel at the cathode terminal of D1 and D2, ensure not to be connected in series, D1 and D2 parallel connection place is connected in series a current-limiting resistance R1 again, and in the input end of current-limiting resistance R1 with SW1, the positive pole of light-emitting diode is connected, LEDs ON in the input end of control SW1.
When the power accumulator of electronlmobil charges, the work of charging wake-up circuit, Vehicular charger provides charging to wake 12V up; When car load powers on, starting ignition circuit, i.e. ON electricity 12V work, above-mentioned two states is all non-power-down state (comprising charge condition and power-up state), and its process can be thought and car load power-down state is inverse state.When electronlmobil is in power-down state, by the mouth transmission low-voltage power supply voltage of normal electric feed circuit to the first light coupling relay SW1, normal electric feed circuit are directly by 12V storage battery power supply.
The first light coupling relay SW1 in normal electric commutation circuit is closed type photocoupling relay, when electronlmobil is in charge condition or power-up state, charging wake-up circuit or starting ignition circuit are to the input end input 12V voltage of the first light coupling relay SW1, LEDs ON in the input end of the first light coupling relay SW1, the mouth of the first light coupling relay SW1 disconnects; When described electronlmobil is in power-down state, the mouth of the first light coupling relay SW1 closes, and the 12V low-voltage power supply voltage transmission that normal electric feed circuit export by the mouth of the first light coupling relay SW1 is to high-voltage relay control circuit.
High-voltage relay control circuit also comprises dc voltage changer U1, and dc voltage changer U1 is connected with the mouth of controller U2, the first light coupling relay SW1.Second light coupling relay SW2 is open type light coupling relay, the mouth of described first light coupling relay SW1 is connected with the positive pole of the diode in the input end of the second light coupling relay SW2, and the I/O output port of described controller U2U2 is connected with the negative pole of the diode in the input end of described second light coupling relay SW2.
When described electronlmobil is in power-down state, 12V low-voltage power supply voltage transitions is after 5V low-voltage dc voltage by described dc voltage changer U1, be transferred to controller U2, 5V low-voltage dc voltage is transferred to the negative pole of the light-emitting diode in the input end of described second light coupling relay SW2 by the I/O output port of controller U2, the 12V low-voltage power supply voltage transmission that the mouth of the first light coupling relay SW1 exports is to the positive pole of the light-emitting diode in the input end of the second light coupling relay SW2, LEDs ON in the input end of the second light coupling relay SW2, the mouth of the second light coupling relay SW2 closes, the 12V low-voltage power supply voltage transmission of the mouth output of the second light coupling relay SW2 gives described high voltage discharge circuit.
The I/O output port of controller U2 is after output 5V low-voltage dc voltage setting-up time (225ms), export high-voltage dc voltage (high level) to the negative pole of the light-emitting diode in the input end of described second light coupling relay SW2, light-emitting diode in the input end of described second light coupling relay SW2 disconnects, the mouth of described second light coupling relay SW2 disconnects, now, high voltage discharge circuit is only U1 and U2 consumed power, and low-power consumption.When vehicle is in power-down state, if do not disconnect SW2,12V often an electric direct power supply to SW2 input end, and if I/O mouth output low level always, in SW2, light-emitting diode can work always, does not meet low power dissipation design.
High voltage discharge circuit mainly comprises 10A high-voltage relay SW3 and conductive discharge network.High-voltage relay adopts low pressure control, ensures the electrical isolation of high voltage discharge circuit and low-voltage power supply circuit, improves the safety of design.Conductive discharge network comprises two with valued resistor R3 and R4, R3 and R4 type selecting is 100 ohm/100 watts aluminum casing resistors, and adopt parallel redundancy design, the ability by electric current can be improved simultaneously, R3 and R4 is connected in series high-voltage insurance Fu2 and Fu3 respectively, Fu2 and Fu3 selects the 16A high-voltage insurance of same specification, disconnects the electrical connection of discharge loop when short trouble appears in R3 and (or) R4.The core in effluve loop is high-voltage relay SW3, its low pressure control end must adopt 12V to power, when vehicle is in power-down state, the normal electricity of 12V exports through SW1, be supplied to SW2 input end and mouth simultaneously, when the I/O mouth of control U2 exports 225ms low level, SW2 exports 12V to SW3 input end, thus control high-voltage relay adhesive, high-voltage relay closes, thus discharge circuit in FIG A point and B point form discharge loop by the electric capacity of high-voltage wiring harness and high voltage parts, the remaining electricity existed in high voltage parts electric capacity is released through discharge loop.
For ensureing to power on safety, when power accumulator high pressure powers on and power accumulator charges, precharge loop must be started, as shown in Figure 1, precharge loop mainly contains pre-charge-relay (in Fig. 1 SHV1), pre-charge resistance (RHV) and main negative pole relay (SHV2) composition of power accumulator, current designing requirement is after pre-charge process, precharge total voltage reaches 95% of power accumulator maximum voltage, RHV pre-charge resistance type selecting is the aluminum casing resistor of 50 Ω/100W, high-pressure system total capacitance value is probably 1500 μ F, according to single order zero state response circuit, known timeconstantτ=R*C=50*1500*10-6=75ms, be pre-charged to the time constant of 95% needs three times, also namely about 225ms is had.
High-voltage residual-electricity discharge process and pre-charge process are just in time contrary, and from pre-charge process, discharge time is also probably 225ms.This device is automatic star t-up discharge circuit when obtaining the normal electricity of 12V, and remaining electricity of releasing within the very fast time, meets electric discharge requirement.Consider that discharge time quickly, so when status indicator lamp LED1 lights, discharge process terminates substantially, also namely LED1 can be used as the completion status indicator lamp that discharges.
The electric discharge device of the embodiment of the present invention is low power dissipation design, and when car load powers on or is in charge condition, low pressure 12V powers only provides a few mA electric current, and concerning low pressure 12V battery, the power of consumption can be ignored.
Embodiment two
The discharge process flow process of the electric discharge device of the remaining electricity of high voltage component of a kind of electronlmobil that this embodiment provides as shown in Figure 4, comprises following treating process:
Judge whether LED 1 is lighted, when LED 1 is not lighted, then illustrate that the load outputs of light coupling relay SW1 disconnects, car load is in non-power-down state, is namely in and powers on or charge condition; When LED 1 is lighted, then illustrate that the load outputs of light coupling relay SW1 closes, car load is lower electricity, and the remaining electricity of high voltage component is released.
The status indicator lamp of the electric discharge device of the embodiment of the present invention and button are installed on high pressure control lid place, the operation of what this embodiment provided be positioned at high pressure control box outside and display panel schematic diagram button and indicator lamp panel are as shown in Figure 5, comprise the indicator lamp of LED 1, whether lighted by LED 1 very intuitively and judge whether electricity is released more than high voltage component.
In sum, when the electric discharge device of the embodiment of the present invention is used for dismounting, examination and repair for high-pressure parts, as long as connect normal electric feed circuit can release whole high-pressure system exist high-voltage residual-electricity, reach human safety voltage, and the remaining electricity of multi-meter manual measurement high voltage component need not be adopted, save time, and safety is high, is convenient to safe in operation.
High pressure control box is positioned at forward engine room, and the electric discharge device of the embodiment of the present invention is installed in electric automobile high-voltage control capsule, and the power light of high-voltage residual-electricity electric discharge exposes from high pressure control box top cover, easy access human users.
The electric discharge device of the embodiment of the present invention have employed safe design, ensures that in driving and process of charging, the discharge loop designed in device does not work, not as load, thus not consumption of power accumulator electric-quantity.
One of ordinary skill in the art will appreciate that: accompanying drawing is the schematic diagram of an embodiment, the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.
As seen through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add required general hardware platform by software and realizes.Based on such understanding, technical scheme of the present invention can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product can be stored in storage medium, as ROM/RAM, magnetic disc, CD etc., comprising some instructions in order to make a computer equipment (can be Personal Computer, server, or the network equipment etc.) perform the method described in some part of each embodiment of the present invention or embodiment.
Each embodiment in this specification sheets all adopts the mode of going forward one by one to describe, between each embodiment identical similar part mutually see, what each embodiment stressed is the difference with other embodiments.Especially, for device or system embodiment, because it is substantially similar to embodiment of the method, so describe fairly simple, relevant part illustrates see the part of embodiment of the method.Apparatus and system embodiment described above is only schematic, the wherein said unit illustrated as separating component or can may not be and physically separates, parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed on multiple network element.Some or all of module wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.Those of ordinary skill in the art, when not paying creative work, are namely appreciated that and implement.
The above; be only the present invention's preferably detailed description of the invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (9)
1. an electric discharge device for the remaining electricity of the high voltage component of electronlmobil, is characterized in that, comprising: normal electric commutation circuit, high-voltage relay control circuit and high voltage discharge circuit;
Described normal electric commutation circuit, for comprising the first light coupling relay, when described electronlmobil is in high pressure power-down state, receive the low-voltage power supply voltage of outside input, described low-voltage power supply voltage transmission is given described high-voltage relay control circuit by the mouth of described first light coupling relay;
Described high-voltage relay control circuit, for comprising the second light coupling relay and controller that are connected to each other, when described electronlmobil is in high pressure power-down state, the setting voltage that described controller exports is transferred to the input end of described second light coupling relay, and described low-voltage power supply voltage transmission is given described high voltage discharge circuit by the mouth of described second light coupling relay;
Described high voltage discharge circuit, for comprising conductive discharge network, the effluve end point of connection of this conductive discharge network is selected on the high pressure both positive and negative polarity bus in high pressure control box, when after described conductive discharge network reception to described low-voltage power supply voltage, described conductive discharge network carries out discharge process to electricity more than between the high pressure both positive and negative polarity bus in described high pressure control box.
2. the electric discharge device of the remaining electricity of the high voltage component of electronlmobil according to claim 1, it is characterized in that, described device is arranged in the high pressure control box of electronlmobil, the effluve end point of connection of described conductive discharge network comprises cathode voltage collection point and cathode voltage collection point, described cathode voltage collection point is connected with the positive pole of power accumulator by the high-voltage positive electrode bus of high pressure control box, and described cathode voltage collection point is connected with the negative pole of power accumulator by the negative pole positive electrode bus of high pressure control box.
3. the electric discharge device of the remaining electricity of the high voltage component of electronlmobil according to claim 1, it is characterized in that, described device also comprises: condition indication circuit, this condition indication circuit comprises the LED 1 and current-limiting resistance R5 that are connected in series with each other, described current-limiting resistance R5 is connected with the mouth of described first light coupling relay, when the mouth of described first light coupling relay exports low-voltage power supply voltage, described LED 1 is lighted.
4. the electric discharge device of the remaining electricity of the high voltage component of electronlmobil according to claim 1, it is characterized in that, described device also comprises: low-voltage power supply circuit, described low-voltage power supply circuit comprises: starting ignition circuit and charging wake-up circuit, described starting ignition circuit and described charging wake-up circuit are connected in parallel, described charging wake-up circuit and described starting ignition circuit are connected in series anti-reverse diode D1 and D2 respectively, the cathode terminal of described anti-reverse diode D1 and D2 is in parallel, described anti-reverse diode D1 and D2 parallel connection place is connected in series a current-limiting resistance R1 again, this current-limiting resistance R1 is connected with the light-emitting diode in the input end of described first light coupling relay,
When described electronlmobil is in charge condition, described charging wake-up circuit work; When described electronlmobil is in power-up state, described starting ignition circuit working; When described electronlmobil is in power-down state, by the mouth transmission low-voltage power supply voltage of normal electric feed circuit to described first light coupling relay.
5. the electric discharge device of the remaining electricity of the high voltage component of electronlmobil according to claim 4, it is characterized in that, described first light coupling relay is closed type photocoupling relay, when described electronlmobil is in charge condition or power-up state, LEDs ON in the input end of described first light coupling relay, the mouth of described first light coupling relay disconnects; When described electronlmobil is in power-down state, the mouth of described first light coupling relay closes, and described low-voltage power supply voltage transmission is given described high-voltage relay control circuit by the mouth of described first light coupling relay.
6. the electric discharge device of electricity more than the high voltage component of the electronlmobil according to any one of claim 1 to 5, it is characterized in that, described high-voltage relay control circuit also comprises dc voltage changer, described dc voltage changer and described controller, the mouth of described first light coupling relay connects, described second light coupling relay is open type light coupling relay, the mouth of described first light coupling relay is connected with the positive pole of the diode in the input end of described second light coupling relay, the I/O output port of described controller is connected with the negative pole of the diode in the input end of described second light coupling relay,
When described electronlmobil is in power-down state, described low-voltage power supply voltage transitions is after low-voltage dc voltage by described dc voltage changer, be transferred to described controller, described low-voltage dc voltage is transferred to the negative pole of the light-emitting diode in the input end of described second light coupling relay by the I/O output port of described controller, the low-voltage power supply voltage transmission that the mouth of described first light coupling relay exports is to the positive pole of the light-emitting diode in the input end of described second light coupling relay, LEDs ON in the input end of described second light coupling relay, the mouth of described second light coupling relay closes, the low-voltage power supply voltage transmission of the mouth output of described second light coupling relay gives described high voltage discharge circuit.
7. the electric discharge device of the remaining electricity of the high voltage component of electronlmobil according to claim 6, it is characterized in that, the I/O output port of described controller is after output low-voltage dc voltage setting-up time, export high-voltage dc voltage to the negative pole of the light-emitting diode in the input end of described second light coupling relay, light-emitting diode in the input end of described second light coupling relay disconnects, and the mouth of described second light coupling relay disconnects.
8. the electric discharge device of the remaining electricity of the high voltage component of electronlmobil according to claim 6, it is characterized in that, described high voltage discharge circuit also comprises relay switch, and this relay switch is connected with the mouth of described conductive discharge network, described second light coupling relay;
When the mouth of described second light coupling relay outputs low-voltage power supply voltage, the relay switch in described high voltage discharge circuit closes, described conductive discharge network work.
9. the electric discharge device of the remaining electricity of the high voltage component of electronlmobil according to claim 8, it is characterized in that, described conductive discharge network comprises resistance R4 and R5 be connected in parallel, described resistance R4 and R5 is connected in series high-voltage insurance Fu2 and Fu3 respectively, when short trouble appears in described resistance R4 and/or R5, disconnect the electrical connection of described conductive discharge network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510085297.0A CN104691350B (en) | 2015-02-16 | 2015-02-16 | The electric discharge device of electricity more than the high voltage component of electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510085297.0A CN104691350B (en) | 2015-02-16 | 2015-02-16 | The electric discharge device of electricity more than the high voltage component of electric automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104691350A true CN104691350A (en) | 2015-06-10 |
| CN104691350B CN104691350B (en) | 2017-01-04 |
Family
ID=53339040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510085297.0A Active CN104691350B (en) | 2015-02-16 | 2015-02-16 | The electric discharge device of electricity more than the high voltage component of electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104691350B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105655974A (en) * | 2016-02-25 | 2016-06-08 | 安徽江淮汽车股份有限公司 | Cover opening protection control method of electric automobile motor controller |
| CN105799516A (en) * | 2016-03-22 | 2016-07-27 | 北京新能源汽车股份有限公司 | High-voltage control box with high-voltage residual electricity discharging function and electric vehicle |
| CN108319162A (en) * | 2017-12-22 | 2018-07-24 | 贵州电网有限责任公司 | The method for realizing different direct voltage source lotus controls using photoelectrical coupler |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008178183A (en) * | 2007-01-17 | 2008-07-31 | Nissan Motor Co Ltd | Electric vehicle |
| CN102673424A (en) * | 2012-06-13 | 2012-09-19 | 苏州汇川技术有限公司 | Weak-current power supply system for power control unit (PCU) of electric automobile |
| JP2013062979A (en) * | 2011-09-14 | 2013-04-04 | Mitsubishi Electric Corp | Power supply device for vehicle |
| CN104139708A (en) * | 2013-05-11 | 2014-11-12 | 袭帅 | Power control power supply system for electric vehicle |
| CN204586540U (en) * | 2015-02-16 | 2015-08-26 | 北京新能源汽车股份有限公司 | The electric discharge device of the remaining electricity of high voltage component of electronlmobil |
-
2015
- 2015-02-16 CN CN201510085297.0A patent/CN104691350B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008178183A (en) * | 2007-01-17 | 2008-07-31 | Nissan Motor Co Ltd | Electric vehicle |
| JP2013062979A (en) * | 2011-09-14 | 2013-04-04 | Mitsubishi Electric Corp | Power supply device for vehicle |
| CN102673424A (en) * | 2012-06-13 | 2012-09-19 | 苏州汇川技术有限公司 | Weak-current power supply system for power control unit (PCU) of electric automobile |
| CN104139708A (en) * | 2013-05-11 | 2014-11-12 | 袭帅 | Power control power supply system for electric vehicle |
| CN204586540U (en) * | 2015-02-16 | 2015-08-26 | 北京新能源汽车股份有限公司 | The electric discharge device of the remaining electricity of high voltage component of electronlmobil |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105655974A (en) * | 2016-02-25 | 2016-06-08 | 安徽江淮汽车股份有限公司 | Cover opening protection control method of electric automobile motor controller |
| CN105655974B (en) * | 2016-02-25 | 2018-02-13 | 安徽江淮汽车集团股份有限公司 | A kind of electric vehicle motor controller, which is uncapped, protects control method |
| CN105799516A (en) * | 2016-03-22 | 2016-07-27 | 北京新能源汽车股份有限公司 | High-voltage control box with high-voltage residual electricity discharging function and electric vehicle |
| CN108319162A (en) * | 2017-12-22 | 2018-07-24 | 贵州电网有限责任公司 | The method for realizing different direct voltage source lotus controls using photoelectrical coupler |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104691350B (en) | 2017-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104691349A (en) | Discharging device for residual power of high-voltage part of electric car | |
| CN104426211B (en) | It is pre-charged quick key recycling-guard | |
| CN204586540U (en) | The electric discharge device of the remaining electricity of high voltage component of electronlmobil | |
| CN204774699U (en) | Discharge device of electric automobile's surplus electricity of high -pressure part | |
| CN105391108A (en) | Battery pack and hybrid vehicle including the battery pack | |
| CN2781390Y (en) | Vehicle loading short circuit, open circuit predetection circuit | |
| CN105656122B (en) | A kind of DC-DC converter for new-energy automobile | |
| CN104678311A (en) | Detection device for power voltage state of electric automobile | |
| US8958956B1 (en) | Battery supervisor system having smart winch control | |
| CN108493718A (en) | A kind of charge and discharge rifle with external connecting function | |
| CN101641760A (en) | System and method for boosting battery output | |
| CN103875170B (en) | Electric power converter and pre-charge circuit thereof | |
| CN207967545U (en) | Portable extension type charging wire | |
| CN104691350A (en) | Discharging device for residual power of high-voltage part of electric car | |
| CN204595104U (en) | The pick-up unit of the rear high-voltage residual-electricity of electricity under electric automobile | |
| CN211237446U (en) | Battery management and charging principle training system | |
| CN104678158A (en) | High-voltage power-on display device of electric automobile | |
| KR20170121202A (en) | Apparatus and method for managing charging and discharging of ultracapacitors without control wiring | |
| CN109693625A (en) | Automobile standby power supply module and automobile power supply system comprising it | |
| JP2019071770A (en) | Supply of low voltage in-vehicle electrical system of electric drive vehicle | |
| CN104655959B (en) | Under electric car after electricity high-voltage residual-electricity detection device | |
| CN112098825A (en) | Detection circuit for contactor coil fault | |
| CN204595074U (en) | The high pressure of electric automobile powers on display device | |
| CN108819732B (en) | BMS hardware function test system | |
| CN202026114U (en) | Self-tracking and self-adapting charging maintenance device of electric car storage battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |