CN205737342U - A kind of high-low pressure junction box of band pre-charge circuit - Google Patents
A kind of high-low pressure junction box of band pre-charge circuit Download PDFInfo
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- CN205737342U CN205737342U CN201620666991.1U CN201620666991U CN205737342U CN 205737342 U CN205737342 U CN 205737342U CN 201620666991 U CN201620666991 U CN 201620666991U CN 205737342 U CN205737342 U CN 205737342U
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- junction box
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- output interface
- charge circuit
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Abstract
This utility model provides the high-low pressure junction box of a kind of band pre-charge circuit, this junction box includes electrokinetic cell power input interface, electric machine controller power output interface, integrated power supply cabinet power output interface, pre-charge circuit and charging circuit, described electrokinetic cell power input interface is connected with integrated power supply cabinet power output interface, and described pre-charge circuit and charging circuit are connected in parallel between electrokinetic cell power input interface and electric machine controller power output interface.This utility model has the advantage that small and exquisite on contour structures, easy to use, highly versatile, repair and replacement convenience；Internal structure is brief, can change required relay and charging resistor according to demand；Usability is strong, can be suitably used for the pure electric vehicle of the special upper dress of all bands；Mass production, low cost.
Description
Technical field
This utility model relates to automobile junction box field, especially relates to the high-low pressure separated time of a kind of band pre-charge circuit
Box.
Background technology
Along with development and the popularization of national policy, the enterprise of electric automobile and the vehicle of society are more and more, environmental sanitation class
Special-purpose vehicle, as the work stage property of municipal administration environmental construction, also begins to develop toward pure electric vehicle direction to not produce secondary pollution
Come.
The most most pure electric vehicle chassis is all automatic catch chassis at present, connects at repacking electric sanitation special-purpose vehicle
During upper dress, it is impossible to drive upper dress by change speed gear box power taking as orthodox car, it is therefore desirable to a separately installed driving motor
Drive and fill work, be at this moment accomplished by separating the driving motor control of the upper dress of connection of coming from original vehicle high-voltage circuit
Device processed is powered to motor and is made its work.At present, traditional automobile junction box is only intended to the distribution of power supply, and it does not possess can be for electricity
The pre-charge circuit of machine controller internal capacitance charging and the low-voltage circuit spare interface powering to low-voltage electrical appliance and control,
If wanting additional designs pre-charge circuit, arrange that protection has problems again, therefore devise a with pre-charge circuit
High-low pressure junction box.
Utility model content
The purpose of this utility model is: the problem existed for prior art, it is provided that the height of a kind of band pre-charge circuit
Low pressure junction box, solves traditional automobile junction box and is only intended to the distribution of power supply, and it does not possess can be for inside electric machine controller
The pre-charge circuit of electric capacity charging and the problem of low-voltage circuit spare interface powered to low-voltage electrical appliance and control.
The purpose of this utility model is achieved through the following technical solutions:
The high-low pressure junction box of a kind of band pre-charge circuit, it is characterised in that this junction box includes that electrokinetic cell power supply is defeated
Incoming interface, electric machine controller power output interface, integrated power supply cabinet power output interface, pre-charge circuit and charging circuit,
Described electrokinetic cell power input interface is connected with integrated power supply cabinet power output interface, described pre-charge circuit and charged electrical
Road is connected in parallel between electrokinetic cell power input interface and electric machine controller power output interface.
As further technical scheme, described pre-charge circuit includes pre-charge resistance R and high-voltage relay K1, described
Pre-charge resistance R and high-voltage relay K1 be connected on electrokinetic cell power input interface and electric machine controller power output interface it
Between.
As further technical scheme, described charging circuit includes high-voltage relay K2, and this high-voltage relay K2 concatenates
Between electrokinetic cell power input interface and electric machine controller power output interface.
After further technical scheme, described pre-charge circuit and charging circuit parallel connection, one end is the most molten by one
Insurance is connected with electrokinetic cell power input interface, and the other end is connected with electric machine controller power output interface.
As further technical scheme, this junction box includes at least one road low voltage distribution circuit, described low-voltage distribution electricity
Road includes battery feed input interface, protection control circuit and low-voltage electrical appliance power output interface, and described protection controls electricity
Road is serially connected between battery feed input interface and low-voltage electrical appliance power output interface.
As further technical scheme, described protection control circuit includes fast molten insurance and low-voltage relay, described soon
Molten insurance and low-voltage relay are connected between battery feed input interface and low-voltage electrical appliance power output interface.
As further technical scheme, the opening and closing signal of described pre-charge circuit and charging circuit controls port and VCU
Controller connects.
As further technical scheme, the opening and closing signal of described low voltage distribution circuit controls port with VCU controller even
Connect.
Compared with prior art, this utility model has the advantage that
1, small and exquisite on contour structures, easy to use, highly versatile, repair and replacement convenience；
2, internal structure is brief, can change required relay and charging resistor according to demand；
3, usability is strong, can be suitably used for the pure electric vehicle of the special upper dress of all bands；
4, mass production, low cost.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present utility model；
Fig. 2 is external interface distributed architecture figure of the present utility model；
Fig. 3 is internal structure scattergram of the present utility model.
Detailed description of the invention
With specific embodiment, this utility model is described in detail below in conjunction with the accompanying drawings.
Embodiment
This utility model provides the high-low pressure junction box of a kind of band pre-charge circuit, and its improvement mainly has 2 points: 1, be
Limit the power on moment charging current to upper dress drive motor controller inner capacitor, in junction box, devise one group
Pre-charge circuit, can play the effect of protection electric machine controller；2, it is provided with low voltage distribution circuit, and is reserved with low-tension supply
Gateway, thus meet pre-charge circuit Control and power to other low-voltage electrical appliances.
As shown in Figures 1 to 3, the power supply that electrokinetic cell provides is divided into two-way by the junction box of the present embodiment, and a road is to one
Changing power cabinet is that car load driver's cabin chassis powers, and a road to upper dress drive motor controller is that upper dress drives motor to power.This point
Line box includes that the output of electrokinetic cell power input interface (including positive and negative two interfaces of electrokinetic cell), electric machine controller power supply connects
Mouthful (including positive and negative two interfaces of electric machine controller), integrated power supply cabinet power output interface (include integrated power supply cabinet just,
Negative two interfaces), pre-charge circuit and charging circuit.Electrokinetic cell power input interface connects with the output of integrated power supply cabinet power supply
Mouth connects, and pre-charge circuit and charging circuit are connected in parallel on electrokinetic cell power input interface and electric machine controller power output interface
Between.
The present embodiment provides a kind of pre-charge circuit, and it includes pre-charge resistance R and high-voltage relay K1.Pre-charge resistance
R and high-voltage relay K1 is connected between electrokinetic cell power input interface and electric machine controller power output interface.This enforcement
Example also provides for a kind of charging circuit, and it includes high-voltage relay K2, and this high-voltage relay K2 is serially connected in the input of electrokinetic cell power supply
Between interface and electric machine controller power output interface.
In order to protect charging circuit, increase and have an insurance FU1 the most molten.After pre-charge circuit and charging circuit parallel connection,
One end is connected with electrokinetic cell power input interface by an insurance FU1 the most molten, and the other end exports with electric machine controller power supply
Interface connects.
It addition, this junction box is provided with at least one road low voltage distribution circuit, the power supply that accumulator provides is delivered to low pressure and uses
Electrical equipment.The present embodiment is provided with two-way low voltage distribution circuit.Low voltage distribution circuit includes that battery feed input interface (includes defeated
Go out positive and negative two interfaces), protection control circuit and low-voltage electrical appliance power output interface.Protection control circuit is serially connected in electric power storage
Between pond power input interface and low-voltage electrical appliance power output interface.Protection control circuit include fast molten insurance FU2, FU3 and
Low-voltage relay K3, K4, fast molten insurance FU2 and low-voltage relay K3 is connected on battery feed input interface and low-voltage electrical appliance
Between power output interface, in like manner, fast molten insurance FU3 and low-voltage relay K4 is connected on battery feed input interface and low pressure
Between electrical appliance power output interface.Storage battery low-voltage (24V/12V) plant-grid connection junction box is divided into two-way low-tension supply use
(such as radiator fan, water pump etc.) is powered in other low-voltage electrical appliances.
In order to realize control, pre-charge circuit, charging circuit, the opening and closing signal of low voltage distribution circuit control port and VCU
Controller connects.I.e. high-voltage relay K1, high-voltage relay K2, low-voltage relay K3, the opening and closing signal control of low-voltage relay K4
End processed is connected with VCU controller.By leading to of the pre-charge circuit of the P3 foot control high-voltage relay K1 realization of VCU controller
Disconnected, R is pre-charge resistance, mainly relevant with charging current and electric machine controller capacitor charging time, and K2 serves as theme road high pressure
Relay, can control its break-make by the P4 foot of VCU after electric capacity charging terminates.Pre-charge circuit here serves power supply and connects
The logical moment restriction effect to electric machine controller inner capacitor charging current, to protect the element of electric machine controller will not be because of electric capacity
The short circuit current of device moment and damage.
It addition, in the case of junction box internal wiring is constant, external connection line route nose entrance is replaced with and patches
The form of part, so can open junction box directly to connector during installing, it is to avoid damage after opening box
Internal electric elements.
The form that internal high pressure part all uses line nose to connect is connected with high-voltage wiring harness so that the connection with wire harness is more
Adding firm, low pressure control section is done a switching connector by low-tension supply and control cable port extraction cable and enters with low voltage wiring harness
Row connects.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, it should refer to
Go out, all any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, all should comprise
Within protection domain of the present utility model.
Claims (8)
1. the high-low pressure junction box of a band pre-charge circuit, it is characterised in that this junction box includes that electrokinetic cell power supply inputs
Interface, electric machine controller power output interface, integrated power supply cabinet power output interface, pre-charge circuit and charging circuit, institute
State electrokinetic cell power input interface to be connected with integrated power supply cabinet power output interface, described pre-charge circuit and charging circuit
It is connected in parallel between electrokinetic cell power input interface and electric machine controller power output interface.
The high-low pressure junction box of a kind of band pre-charge circuit the most according to claim 1, it is characterised in that described precharge
Circuit includes that pre-charge resistance R and high-voltage relay K1, described pre-charge resistance R and high-voltage relay K1 are connected on electrokinetic cell
Between power input interface and electric machine controller power output interface.
The high-low pressure junction box of a kind of band pre-charge circuit the most according to claim 1, it is characterised in that described charged electrical
Road includes high-voltage relay K2, and it is defeated with electric machine controller power supply that this high-voltage relay K2 is serially connected in electrokinetic cell power input interface
Between outgoing interface.
4. according to the high-low pressure junction box of a kind of band pre-charge circuit described in claim 1 or 2 or 3, it is characterised in that described
After pre-charge circuit and charging circuit parallel connection, one end is connected with electrokinetic cell power input interface, separately by an insurance the most molten
One end is connected with electric machine controller power output interface.
The high-low pressure junction box of a kind of band pre-charge circuit the most according to claim 1, it is characterised in that this junction box bag
Include at least one road low voltage distribution circuit, described low voltage distribution circuit include battery feed input interface, protection control circuit and
Low-voltage electrical appliance power output interface, described protection control circuit is serially connected in battery feed input interface and low-voltage electrical appliance electricity
Between the output interface of source.
The high-low pressure junction box of a kind of band pre-charge circuit the most according to claim 5, it is characterised in that described protection control
Circuit processed includes that fast molten insurance and low-voltage relay, described fast molten insurance and low-voltage relay are connected on battery feed input and connect
Between mouth and low-voltage electrical appliance power output interface.
The high-low pressure junction box of a kind of band pre-charge circuit the most according to claim 1, it is characterised in that described precharge
The opening and closing signal of circuit and charging circuit controls port and is connected with VCU controller.
The high-low pressure junction box of a kind of band pre-charge circuit the most according to claim 5, it is characterised in that described low be press-fitted
The opening and closing signal of electricity circuit controls port and is connected with VCU controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620666991.1U CN205737342U (en) | 2016-06-27 | 2016-06-27 | A kind of high-low pressure junction box of band pre-charge circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620666991.1U CN205737342U (en) | 2016-06-27 | 2016-06-27 | A kind of high-low pressure junction box of band pre-charge circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205737342U true CN205737342U (en) | 2016-11-30 |
Family
ID=57381847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620666991.1U Active CN205737342U (en) | 2016-06-27 | 2016-06-27 | A kind of high-low pressure junction box of band pre-charge circuit |
Country Status (1)
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|---|---|
| CN (1) | CN205737342U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030977A (en) * | 2018-06-01 | 2018-12-18 | 北京新能源汽车股份有限公司 | A kind of high pressure broken string box and its control method and control device |
| CN114290913A (en) * | 2021-12-23 | 2022-04-08 | 矩阵数据科技(上海)有限公司 | Drive motor controller and integrated form high-voltage wire harness with high-voltage power distribution function |
-
2016
- 2016-06-27 CN CN201620666991.1U patent/CN205737342U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030977A (en) * | 2018-06-01 | 2018-12-18 | 北京新能源汽车股份有限公司 | A kind of high pressure broken string box and its control method and control device |
| CN109030977B (en) * | 2018-06-01 | 2021-01-26 | 北京新能源汽车股份有限公司 | High-voltage wire breaking box and control method and control device thereof |
| CN114290913A (en) * | 2021-12-23 | 2022-04-08 | 矩阵数据科技(上海)有限公司 | Drive motor controller and integrated form high-voltage wire harness with high-voltage power distribution function |
| CN114290913B (en) * | 2021-12-23 | 2023-06-16 | 矩阵数据科技(上海)有限公司 | Driving motor controller with high-voltage power distribution function and integrated high-voltage wire harness |
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