CN207304378U - Power supply circuit and automobile - Google Patents
Power supply circuit and automobile Download PDFInfo
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- CN207304378U CN207304378U CN201721370564.XU CN201721370564U CN207304378U CN 207304378 U CN207304378 U CN 207304378U CN 201721370564 U CN201721370564 U CN 201721370564U CN 207304378 U CN207304378 U CN 207304378U
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Abstract
The utility model provides a supply circuit and car relates to car technical field. The power supply circuit includes: the high-voltage battery pack is connected with the inverter circuit; wherein, the inverter circuit includes: an input filter circuit; the direct current-direct current conversion circuit is connected with the input filter circuit; the direct current-alternating current conversion circuit is connected with the direct current-direct current conversion circuit; and a control circuit connected to the dc-dc conversion circuit and the dc-ac conversion circuit. The utility model discloses a scheme is through carrying out the voltage conversion to the high voltage battery package to the realization is the purpose of on-vehicle load power supply.
Description
Technical field
Automobile technical field is the utility model is related to, particularly relates to a kind of power supply circuit and automobile.
Background technology
With the lifting of economic level, more and more people select purchase automobile as walking-replacing tool.Wherein, new energy vapour
Che Yinqi, as power resources, can also be reduced while driving performance is ensured and environment is broken using unconventional vehicle fuel
It is bad, also gradually favored be subject to masses.
But in new-energy automobile, the energy of vehicle is all provided by high-tension battery bag, battery pack voltage is left for 330V
The right side, and traditional vehicle-mounted inverter is accomplished that storage battery is changed into 220V by direct current 12V exchanges, power in 200W-500W,
It can not complete the conversion to high-tension battery bag.
Utility model content
The purpose of this utility model is to provide a kind of power supply circuit and automobile, is turned by the voltage carried out to high-tension battery bag
Change, to be embodied as the purpose of vehicle-mounted load supplying.
To reach above-mentioned purpose, the embodiment of the utility model provides a kind of power supply circuit, including：
High-tension battery bag, the inverter circuit being connected with the high-tension battery bag；Wherein,
The inverter circuit includes：
Input filter circuit；
The DC-DC conversion circuit being connected with the input filter circuit；
The DC-ac conversion circuit being connected with the DC-DC conversion circuit；And
The control circuit being connected with the DC-DC conversion circuit and the DC-ac conversion circuit.
The power supply circuit of the utility model embodiment, the direct current that high-tension battery bag can be exported, by inverter circuit
Input filter circuit carry out input filter after, under the control of control circuit complete DC-DC conversion circuit boosting and
The direct current of DC-ac conversion circuit exports the friendship for the load use demand for meeting new-energy automobile to the conversion of alternating current
Galvanic electricity.
Wherein, the input filter circuit includes：First capacitance；First capacitance is in parallel with the high-tension battery bag even
Connect.
Wherein, the DC-DC conversion circuit is boosting BOOST circuits.
Wherein, the DC-DC conversion circuit includes：First inductance, the first field-effect metal-oxide-semiconductor, the second metal-oxide-semiconductor and
Two capacitances；Wherein,
The first end of first inductance is connected with the first end of first capacitance, the second end point of first inductance
It is not connected with the drain electrode of the first metal-oxide-semiconductor and the drain electrode of second metal-oxide-semiconductor, the source electrode of second metal-oxide-semiconductor and described second
The first end connection of capacitance, the second end of the source electrode of first metal-oxide-semiconductor and second capacitance respectively with first capacitance
Second end connection.
Wherein, the DC-ac conversion circuit is full bridge inverter.
Wherein, the DC-ac conversion circuit includes：Second inductance, the 3rd metal-oxide-semiconductor, the 4th metal-oxide-semiconductor, the 5th MOS
Pipe, the 6th metal-oxide-semiconductor and the 3rd capacitance；Wherein,
The drain electrode of 3rd metal-oxide-semiconductor is connected with the first end of second capacitance, the source electrode of the 3rd metal-oxide-semiconductor and institute
The drain electrode connection of the 5th metal-oxide-semiconductor is stated, the drain electrode of the 4th metal-oxide-semiconductor is connected with the drain electrode of the 3rd metal-oxide-semiconductor, and the described 4th
The source electrode of metal-oxide-semiconductor is connected with the drain electrode of the 6th metal-oxide-semiconductor, the first end of second inductance and the source of the 3rd metal-oxide-semiconductor
Pole connects, and the second end of second inductance is connected with the first end of the 3rd capacitance, the second end of the 3rd capacitance and
The drain electrode connection of 6th metal-oxide-semiconductor, the source electrode of the source electrode of the 5th metal-oxide-semiconductor and the 6th metal-oxide-semiconductor is respectively with described the
The second end connection of two capacitances.
Wherein, the control circuit includes a controller；Wherein,
First drive end of the controller respectively with the grid of first metal-oxide-semiconductor and the grid of second metal-oxide-semiconductor
Pole connects；
Second drive end of the controller grid with the 3rd metal-oxide-semiconductor respectively, the grid of the 4th metal-oxide-semiconductor,
The grid connection of the grid and the 6th metal-oxide-semiconductor of 5th metal-oxide-semiconductor.
To reach above-mentioned purpose, the utility model additionally provides a kind of automobile, including above-mentioned power supply circuit.
The automobile of the utility model, the direct current that high-tension battery bag can be exported by above-mentioned power supply circuit, by inverse
After becoming the input filter circuit progress input filter of circuit, DC-DC conversion circuit is completed under the control of control circuit
The direct current of boosting and DC-ac conversion circuit exports to the conversion of alternating current and meets that the load of new-energy automobile uses
The alternating current of demand.
Brief description of the drawings
Fig. 1 is the structural framing figure of the power supply circuit of the utility model embodiment；
Fig. 2 is the physical circuit schematic diagram of the power supply circuit of the utility model embodiment；
Fig. 3 is the flow chart of electric discharge rifle application.
Embodiment
In order to make the technical problems, technical solutions and advantages to be solved by the utility model clearer, below in conjunction with attached drawing
And specific embodiment is described in detail.
The utility model is accomplished that for existing traditional vehicle-mounted inverter is changed into storage battery by direct current 12V
220V is exchanged, and power is in 200W-500W, the problem of can not completing the conversion to high-tension battery bag, there is provided a kind of power supply circuit, leads to
The voltage conversion carried out to high-tension battery bag is crossed, to be embodied as the purpose of vehicle-mounted load supplying.
As shown in Figure 1, the power supply circuit of the utility model embodiment, including：
High-tension battery bag, the inverter circuit being connected with the high-tension battery bag；Wherein,
The inverter circuit includes：
Input filter circuit；
The DC-DC conversion circuit being connected with the input filter circuit；
The DC-ac conversion circuit being connected with the DC-DC conversion circuit；And
The control circuit being connected with the DC-DC conversion circuit and the DC-ac conversion circuit.
In this way, to the direct current DC of high-tension battery bag output, the input filter circuit of inverter circuit will first be filtered place
Reason, then carries out filtered direct current boosting processing by DC-DC conversion circuit, and the direct current after boosting is again through straight
After the conversion of stream-ac conversion circuit, you can obtain corresponding alternating current AC.
Specifically, as shown in Fig. 2, the input filter circuit includes：First capacitance C1；The first capacitance C1 with it is described
High-tension battery bag is connected in parallel.
The first capacitance C1 is connected in parallel with high-tension battery bag, and the direct current of high-tension battery bag output is filtered, and
And first capacitance C1 can also play a supporting role in protection to high-tension battery bag, avoid the voltage of high-tension battery bag from declining suddenly.
In addition, in the embodiment, for boosting processing of the DC-DC conversion circuit to direct current is better achieved, preferably
, the DC-DC conversion circuit is boosting BOOST circuits.
Further, as shown in Fig. 2, the DC-DC conversion circuit includes：First inductance L1, the first field-effect MOS
Pipe Q1, the second metal-oxide-semiconductor Q2 and the second capacitance C2；Wherein,
The first end of the first inductance L1 is connected with the first end of the first capacitance C1, and the of the first inductance L1
Two ends are connected with the drain electrode of the first metal-oxide-semiconductor Q1 and the drain electrode of the second metal-oxide-semiconductor Q2 respectively, the source of the second metal-oxide-semiconductor Q2
Pole is connected with the first end of the second capacitance C2, the second end of the source electrode of the first metal-oxide-semiconductor Q1 and the second capacitance C2
The second end with the first capacitance C1 is connected respectively.
In this way, after the first capacitance C1 direct currents exported to high-tension battery bag are filtered processing, pass through the first metal-oxide-semiconductor
The alternative expression of Q1 and the second metal-oxide-semiconductor Q2 turn on and shut-off：L1 storages energy when Q1 is turned on；L1 releases energy when Q2 is turned on, you can
Boost to direct current.And by the voltage stabilizing of the second capacitance C2, so that voltage (the generally 240- by high-tension battery bag
430V) it is converted into stable High Level DC Voltage (such as 450V).Also, in boost process, the power of direct current will also increase therewith
Greatly, so as to get high voltage direct current there is relatively high power value (such as 3.3KVA), so as to meet the needs of relatively high power electric appliance.
In addition, in the embodiment, for exchange conversion of the DC-ac conversion circuit to high voltage direct current is better achieved,
Preferably, the DC-ac conversion circuit is full bridge inverter.
Further specifically, as shown in Fig. 2, the DC-ac conversion circuit includes：Second inductance L2, the 3rd metal-oxide-semiconductor
Q3, the 4th metal-oxide-semiconductor Q4, the 5th metal-oxide-semiconductor Q5, the 6th metal-oxide-semiconductor Q6 and the 3rd capacitance C3；Wherein,
The drain electrode of the 3rd metal-oxide-semiconductor Q3 is connected with the first end of the second capacitance C2, the source of the 3rd metal-oxide-semiconductor Q3
Pole is connected with the drain electrode of the 5th metal-oxide-semiconductor Q5, and the drain electrode of the 4th metal-oxide-semiconductor Q4 connects with the drain electrode of the 3rd metal-oxide-semiconductor Q3
Connect, the source electrode of the 4th metal-oxide-semiconductor Q4 is connected with the drain electrode of the 6th metal-oxide-semiconductor Q6, the first end of the second inductance L2 with
The source electrode connection of the 3rd metal-oxide-semiconductor Q3, the second end of the second inductance L2 are connected with the first end of the 3rd capacitance C3,
The second end of the 3rd capacitance C3 is connected with the drain electrode of the 6th metal-oxide-semiconductor Q6, the source electrode of the 5th metal-oxide-semiconductor Q5 and described
Second end of the source electrode of 6th metal-oxide-semiconductor Q6 respectively with the second capacitance C2 is connected.
In this way, to the high voltage direct current (such as 450V) obtained after the processing of DC-DC conversion circuit, pass through the 3rd metal-oxide-semiconductor
The conducting and shut-off of Q3 and the 6th metal-oxide-semiconductor Q6 or the 4th metal-oxide-semiconductor Q4 and the 5th metal-oxide-semiconductor Q5, and the electricity of the second inductance L2 and the 3rd
Hold C3 filtering, export required alternating current (such as 220V).
And it is the control realized to each metal-oxide-semiconductor, in the power supply circuit of the utility model embodiment, as shown in Fig. 2, described
Control circuit includes a controller；Wherein,
First drive end of the controller grid with the first metal-oxide-semiconductor Q1 and the second metal-oxide-semiconductor Q2 respectively
Grid connection；
Second drive end of the controller grid with the 3rd metal-oxide-semiconductor Q3 respectively, the grid of the 4th metal-oxide-semiconductor Q4
Pole, the grid connection of the grid and the 6th metal-oxide-semiconductor Q6 of the 5th metal-oxide-semiconductor Q5.
The controller is preset with to the control algolithm that each metal-oxide-semiconductor is controlled in power supply circuit, therefore, is led in the controller
Cross and busbar voltage, bus current and cell voltage are detected, the first drive signal, warp are produced based on corresponding control algolithm
First drive end driving Q1 and Q2 is turned in turn；In the controller by being carried out to busbar voltage, alternating voltage and alternating current
Detection, the second drive signal is produced based on corresponding control algolithm, is turned in turn through the driving of the second drive end Q3, Q6 and Q4, Q5.
So as to which 240-430V cell voltages to be converted into stable 450V DC voltages.
Preferably, as shown in Fig. 2, the controller can also be connected by CAN communication unit with entire car controller, realization pair
The optimal control of each metal-oxide-semiconductor.
Certainly, the load shown in Fig. 1 is not limited to the electrical equipment of new-energy automobile, the power supply electricity of the utility model embodiment
The alternating current of road output, can also be powered through automotive discharge mouth by electric discharge rifle for other off-board electronic equipments.Such as Fig. 3 institutes
Show, S301, detect electric discharge rifle insertion, that is, wake up Full Vehicle System；S302, detects that discharge button is pressed；In next step, S303,
Judge whether resistance value is electric discharge resistance value, if resistance value is electric discharge resistance value, perform next step, S304, judges whether cell voltage is full
Foot electric discharge demand, satisfaction then perform S305, externally electric discharge；It is unsatisfactory for, does not handle, vehicle keeps original state.If resistance value is not
Electric discharge resistance value, is not handled equally, and vehicle keeps original state.
In conclusion the power supply circuit of the utility model embodiment, it becomes possible to the direct current for exporting high-tension battery bag, by inverse
After becoming the input filter circuit progress input filter of circuit, DC-DC conversion circuit is completed under the control of control circuit
The direct current of boosting and DC-ac conversion circuit exports to the conversion of alternating current and meets that the load of new-energy automobile uses
The alternating current of demand.
The embodiment of the utility model additionally provides a kind of automobile, including above-mentioned power supply circuit.
The automobile of the utility model, the direct current that high-tension battery bag can be exported by above-mentioned power supply circuit, by inverse
After becoming the input filter circuit progress input filter of circuit, DC-DC conversion circuit is completed under the control of control circuit
The direct current of boosting and DC-ac conversion circuit exports to the conversion of alternating current and meets that the load of new-energy automobile uses
The alternating current of demand.
It should be noted that the automobile is the automobile for applying above-mentioned power supply circuit, the embodiment of above-mentioned power supply circuit
Implementation is suitable for the automobile, can also reach identical technique effect.
In the description of the utility model, it is to be understood that the indicating position such as term " on ", " under ", "left", "right" or
Position relationship is based on orientation shown in the drawings or position relationship, is for only for ease of description the utility model and simplifies description,
Rather than the device or element of instruction or hint meaning must have specific orientation and specific azimuth configuration and operation,
It is thus impossible to it is interpreted as the limitation to the utility model.In addition, " first ", " second " are merely due to describe purpose, and be not understood that
To indicate or implying relative importance or the implicit quantity for indicating indicated technical characteristic.Therefore, define " first ",
One or more this feature can be expressed or be implicitly included to the feature of " second ".In the description of the utility model, unless
It is otherwise noted, " multiple " are meant that two or more.
, it is necessary to illustrate in the description of the utility model, unless otherwise clearly defined and limited, term " installation "
" connected " " connection " etc. should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or integratedly be connected
Connect；Can mechanically connect or be electrically connected；It can be directly connected, can also be indirectly connected with by intermediary, can
To be the connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood with concrete condition
Concrete meaning in the utility model.
Above-described embodiment is described in reference to the drawings, other different forms and embodiment are also possible without departing from this
The principle of utility model, therefore, the utility model should not be construed as the limitation of embodiment is proposed at this.More properly
Say, these embodiments are provided so that the utility model can be perfect and complete, and can be communicated to the scope of the utility model
Those skilled in the art.In the accompanying drawings, it is exaggerated for the sake of perhaps size of components and relative size are based on clearly.Used at this
Term be based only on description specific embodiment purpose, be not intended to become limitation use.Term "comprising" and/or " comprising " are using
When this specification, represent the presence of the feature, integer, component and/or component, but be not excluded for one or more further features,
Integer, component, component and/or the presence of its group or increase.Unless otherwise indicated, narrative tense, a value scope include the scope
Bound and any subrange therebetween.
The above is the preferred embodiment of the utility model, it is noted that for the ordinary skill of the art
For personnel, on the premise of principle described in the utility model is not departed from, some improvements and modifications can also be made, these improvement
The scope of protection of the utility model is also should be regarded as with retouching.
Claims (8)
- A kind of 1. power supply circuit, it is characterised in that including：High-tension battery bag, the inverter circuit being connected with the high-tension battery bag；Wherein,The inverter circuit includes：Input filter circuit；The DC-DC conversion circuit being connected with the input filter circuit；The DC-ac conversion circuit being connected with the DC-DC conversion circuit；AndThe control circuit being connected with the DC-DC conversion circuit and the DC-ac conversion circuit.
- 2. power supply circuit according to claim 1, it is characterised in that the input filter circuit includes：First capacitance (C1)；First capacitance (C1) is connected in parallel with the high-tension battery bag.
- 3. power supply circuit according to claim 2, it is characterised in that the DC-DC conversion circuit is boosting BOOST Circuit.
- 4. power supply circuit according to claim 3, it is characterised in that the DC-DC conversion circuit includes：First electricity Feel (L1), the first field-effect metal-oxide-semiconductor (Q1), the second metal-oxide-semiconductor (Q2) and the second capacitance (C2)；Wherein,The first end of first inductance (L1) is connected with the first end of first capacitance (C1), first inductance (L1) Second end is connected with the drain electrode of the first metal-oxide-semiconductor (Q1) and the drain electrode of second metal-oxide-semiconductor (Q2) respectively, second metal-oxide-semiconductor (Q2) source electrode is connected with the first end of second capacitance (C2), the source electrode of first metal-oxide-semiconductor (Q1) and second electricity Hold second end of the second end of (C2) respectively with first capacitance (C1) to be connected.
- 5. power supply circuit according to claim 4, it is characterised in that the DC-ac conversion circuit is full-bridge inverting Circuit.
- 6. power supply circuit according to claim 5, it is characterised in that the DC-ac conversion circuit includes：Second electricity Feel (L2), the 3rd metal-oxide-semiconductor (Q3), the 4th metal-oxide-semiconductor (Q4), the 5th metal-oxide-semiconductor (Q5), the 6th metal-oxide-semiconductor (Q6) and the 3rd capacitance (C3)； Wherein,The drain electrode of 3rd metal-oxide-semiconductor (Q3) is connected with the first end of second capacitance (C2), the 3rd metal-oxide-semiconductor (Q3) Source electrode is connected with the drain electrode of the 5th metal-oxide-semiconductor (Q5), drain electrode and the 3rd metal-oxide-semiconductor (Q3) of the 4th metal-oxide-semiconductor (Q4) Drain electrode connection, the source electrode of the 4th metal-oxide-semiconductor (Q4) is connected with the drain electrode of the 6th metal-oxide-semiconductor (Q6), second inductance (L2) first end is connected with the source electrode of the 3rd metal-oxide-semiconductor (Q3), the second end and the described 3rd of second inductance (L2) The first end connection of capacitance (C3), the second end of the 3rd capacitance (C3) are connected with the drain electrode of the 6th metal-oxide-semiconductor (Q6), institute State the source electrode of the 5th metal-oxide-semiconductor (Q5) and the source electrode second end with second capacitance (C2) respectively of the 6th metal-oxide-semiconductor (Q6) Connection.
- 7. power supply circuit according to claim 6, it is characterised in that the control circuit includes a controller；Wherein,First drive end of the controller grid and second metal-oxide-semiconductor (Q2) with first metal-oxide-semiconductor (Q1) respectively Grid connection；Second drive end of the controller grid with the 3rd metal-oxide-semiconductor (Q3) respectively, the grid of the 4th metal-oxide-semiconductor (Q4) Pole, the grid of the 5th metal-oxide-semiconductor (Q5) and the grid connection of the 6th metal-oxide-semiconductor (Q6).
- 8. a kind of automobile, it is characterised in that including such as claim 1 to 7 any one of them power supply circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721370564.XU CN207304378U (en) | 2017-10-19 | 2017-10-19 | Power supply circuit and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721370564.XU CN207304378U (en) | 2017-10-19 | 2017-10-19 | Power supply circuit and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207304378U true CN207304378U (en) | 2018-05-01 |
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ID=62272655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721370564.XU Active CN207304378U (en) | 2017-10-19 | 2017-10-19 | Power supply circuit and automobile |
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| Country | Link |
|---|---|
| CN (1) | CN207304378U (en) |
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2017
- 2017-10-19 CN CN201721370564.XU patent/CN207304378U/en active Active
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