CN209521546U - A kind of new-energy automobile high voltage power supply distributor disk - Google Patents
A kind of new-energy automobile high voltage power supply distributor disk Download PDFInfo
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- CN209521546U CN209521546U CN201920260188.1U CN201920260188U CN209521546U CN 209521546 U CN209521546 U CN 209521546U CN 201920260188 U CN201920260188 U CN 201920260188U CN 209521546 U CN209521546 U CN 209521546U
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Abstract
The utility model discloses a kind of new-energy automobile high voltage power supply distributor disks, including cabinet and installation foot, it include control unit, power distribution unit and battery in the cabinet, power supply is connected to each power distribution unit by control unit, string has a main relay between power supply and power distribution unit, it is characterized by: being connected with relay adhesion detection unit between two closed ends of the main relay, the relay adhesion detection unit output end output low-voltage dc power supply is connected to control unit；The utility model uses relay adhesion detection unit, traditional direct be connected to high-tension line is carried out detection and be revised as carrying out the conversion of electric current by detection unit in control system, it exports in DC power supply to control system, avoid the risk for being directly connected to bring open circuit burning of high-low pressure, reliability is increased, and is able to achieve the condition monitoring of on-line continuous.
Description
Technical field
The present invention relates to field of power supplies, relate in particular to a kind of new-energy automobile high voltage power supply distributor disk.
Background technique
With the environmental problem and energy crisis got worse, new-energy automobile comes into being in this context.High pressure
Power distribution box is the core building block of high-voltage electric system, and main function is controlled by outer low pressure control loop
The on-off of internal high pressure relay, by the high-voltage DC power supply of power battery according to high voltage power supply distributor disk interior design circuit,
It distributes to each branch electrical system.
The design of New-energy electric vehicle high voltage power supply distributor disk at present is just towards safe, integrated, light-weighted side
To development.Direct lead wire is generallyd use when carrying out relay test for high voltage power supply in existing distributor disk to be detected such as Fig. 1
It is shown, or detected using in relay rear end as shown in Fig. 2, the first detection is related to high pressure and is introduced directly into low pressure
On, detection process is very uncontrollable, it may appear that various security risks, although and second of safe and reliable, signal of detection
But actual conditions cannot really be reacted, it is therefore desirable to make improvements to these situations.
Summary of the invention
The object of the present invention is to provide a kind of new power distribution box structures, solve at present for high voltage input terminal relay
Test problems, secondly improve the damping noise reduction of entire distributor disk.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of new-energy automobile high voltage power supply distributor disk, including cabinet and installation foot include that control is single in the cabinet
Member, power distribution unit and battery, power supply are connected to each power distribution unit, power supply and power distribution by control unit
String has a main relay between unit, is connected with relay adhesion detection unit between two closed ends of the main relay,
The relay adhesion detection unit output end output low-voltage dc power supply is connected to control unit；
The cabinet and installation foot are split type structure, and cabinet and installation foot are unlike material, the installation foot and cabinet
Between be attached by connector, the installation foot be elastic support.
In the above-mentioned technical solutions, the power distribution unit includes confluence switching piece and branch, short-circuit protector, confluence
Switching piece includes anode switching copper bar and negative bus bar.
In the above-mentioned technical solutions, it is divided into upper layer and lower layer structure in the cabinet.
In the above-mentioned technical solutions, the anode of battery is connected in cabinet the anode switching copper bar in superstructure, battery
Electric current transferred by anode and respectively enter the branch, short-circuit protector of each power distribution unit branch road after copper bar, pass through branch
The anode of power distribution unit is connected to after the short-circuit protector of road.
In the above-mentioned technical solutions, after the cathode of battery is connected in cabinet the negative bus bar in understructure, directly
It is connected to the cathode of each power distribution unit.
In the above-mentioned technical solutions, charge port is provided on the cabinet, the anode of charge port passes through in superstructure
Anode switching copper bar is connected to the anode of battery, and the cathode of charge port is connected to battery by the negative bus bar in understructure
Cathode.
In the above-mentioned technical solutions, the installation foot is absolute construction, and a cabinet includes four installation feet, each installation
Foot is connect by screw with cabinet.
In the above-mentioned technical solutions, the installation foot is zigzag structure.
In the above-mentioned technical solutions, each edge of the installation foot of zigzag structure turns over bead structure under being inwardly.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
Integration degree is high for the utility model, compact-sized, reduces the volume of high voltage power distribution cartridge, passes through the control
Unit, preliminary filling unit, short-circuit protection and power distribution unit processed, while realizing the control of high-voltage great-current energy source, also
The function of playing short-circuit protection when to main line overload, effectively increases the reliable of electric automobile high-voltage electric control system
Property and safety；
The utility model has good waterproof and dustproof effect, suitable for severe use environment, assembles rationally production
At low cost, easy to maintenance, power distribution is reasonable, can substantially reduce the loss of power；
The utility model uses relay adhesion detection unit, and traditional direct be connected to high-tension line is controlled system
Detection is carried out in system to be revised as carrying out the conversion of electric current by detection unit, is exported in DC power supply to control system, is avoided
The risk for being directly connected to bring open circuit burning of high-low pressure, increases reliability, and be able to achieve the condition monitoring of on-line continuous.
Detailed description of the invention
Examples of the present invention will be described by way of reference to the accompanying drawings, in which:
Fig. 1 is existing electric appliance schematic illustration；
Fig. 2 is existing electric appliance schematic illustration；
Fig. 3 is the electronic schematic diagram of the utility model；
Fig. 4 is the structural schematic diagram of distributor disk entirety.
Specific embodiment
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
It include control unit, relay adhesion detection unit and power supply inside high voltage power supply distributor disk in the present embodiment
Allocation unit；Described control unit includes main relay；The relay adhesion detection unit includes relay adhesion detection
PCBA board；The power distribution unit includes confluence switching piece and branch, short-circuit protector.
In order to change existing detection mode, as shown in figure 3, connecting a relay in the switch terminals two sides of main relay K
Device adhesion detection unit, relay adhesion detection unit are independent PCBA board, DC/DC circuit and signal detection have been routed over
Circuit, the high voltage power supply for surveying main relay switch are converted to the direct current of low pressure, avoid as shown in figure 1 directly by high-voltage electricity
Source is incorporated into the test side of 12V and burns entire circuit so as to bring.Although only simple increase in circuit
One DC/DC circuit and signal deteching circuit, but go effectively to avoid security risk, and this circuit of the present embodiment
Implementation belong in power distribution box in existing new-energy automobile and use for the first time.Because directly acquire come to inputting high pressure
The signal of route, the comparable height of accuracy rate.Compared to the signal acquired in Fig. 2 from the rear end relay K, reduces main relay and bring
Power supply decaying factor, the comparable height of power of the test improves security reliability for entire power distribution and using detail.
The security and reliability for guaranteeing power supply in distributor disk is entirely distributed from upper layer and lower layer are physically divided into
Several interfaces, including battery pack port, the positive port of electric machine controller, electric machine controller negative terminal mouth, air-conditioning (AC) are provided on box
Port, fast charge port, the port PTC, low-voltage signal control connectivity port, the port Vehicular charger OBC.
Battery positive current is connected to distributor disk upper layer knot after passing through box body sealing structure by battery pack port anode hole location
After anode switching copper bar in structure, then successively it is dividedly led into each branch:
After electric current flows through switching copper bar, electric machine controller cathode circuit is flowed directly into；
After electric current flows through switching copper bar, after AC branch high-voltage insurance (50A), held by switching cable and air-conditioning (AC)
Mouth anode is connected；
Electric current flow through switching copper bar after, after PTC branch high-voltage insurance (50A), by switching cable and the port PTC just
Extremely it is connected；
Battery negative current distributes to each branch after negative bus bar in understructure.
External dc power passes through fast charge port anode hole location, after switching copper bar flows through fast charge relay, then through turning
Copper bar is connect to be connected with battery port anode hole location；
External dc power passes through trickle charge port anode hole location, after patchcord and branch high-voltage insurance (40A), passes through
Switching copper bar is connected with battery port anode hole location；
DC power supply is born by flowing to battery pack after negative bus bar in understructure.
The above collective effect constitutes control unit and short-circuit protection unit.
Low-tension current in low voltage communication socket is controlled the actuation of fast charge relay by vehicle BMS control system and broken
Function is opened, to realize being turned on or off for fast charge branch；Low-tension current in low voltage communication socket passes through detection high-voltage interlocking line
The on-off on road come judge each high-pressure insert whether plug together in place and box cover whether install cooperation in place.
As shown in figure 3, electric current, which flows through relay adhesion by low-voltage circuit, detects PCBA board, supply power for, it can be just
Often work；Relay adhesion detects adhesion module by inputting in relay, and relay exports, after the negative bronze medal of battery pack takes electricity,
Be converted to current signal after internal arithmetic, be back to BMS through low-voltage circuit, with detect relay whether adhesion.
The improved place of another of the present embodiment is as shown in figure 4, traditional installation foot is revised as point from overall structure
Body structure, that is to say, that four installation feet of a distributor disk are all independent individual, each installation foot by connector with
Distributor disk is attached.Installation foot makes it have good shock-absorbing function using the zigzag design of elasticity.In order to further into
Row damping carries out the bead designs of indent at each edge of installation foot, and the part of crimping can play the damping effect of part,
By the design of this second level damping, so that power distribution box is in use, automobile bumpiness not will receive to bring
It influences, increases the reliability of power distribution.
The invention is not limited to specific embodiments above-mentioned.The present invention, which expands to, any in the present specification to be disclosed
New feature or any new combination, and disclose any new method or process the step of or any new combination.
Claims (9)
1. a kind of new-energy automobile high voltage power supply distributor disk, including cabinet and installation foot, include in the cabinet control unit,
Power distribution unit and battery, power supply are connected to each power distribution unit, power supply and power distribution list by control unit
String has a main relay between member, it is characterised in that: is connected with relay adhesion between two closed ends of the main relay
Detection unit, the relay adhesion detection unit output end output low-voltage dc power supply are connected to control unit；
The cabinet and installation foot are split type structure, and cabinet and installation foot are unlike material, between the installation foot and cabinet
It is attached by connector, the installation foot is elastic support.
2. a kind of new-energy automobile high voltage power supply distributor disk according to claim 1, it is characterised in that: the power distribution
Unit includes confluence switching piece and branch, short-circuit protector, and confluence switching piece includes anode switching copper bar and negative bus bar.
3. a kind of new-energy automobile high voltage power supply distributor disk according to claim 1, it is characterised in that: divide in the cabinet
For upper layer and lower layer structure.
4. a kind of new-energy automobile high voltage power supply distributor disk according to claim 2 or 3, it is characterised in that the anode of battery
The electric current of the anode switching copper bar being connected in cabinet in superstructure, battery is each by respectively enteing after anode switching copper bar
The branch, short-circuit protector of power distribution unit branch road, by being connected to power distribution unit just after branch, short-circuit protector
Pole.
5. a kind of new-energy automobile high voltage power supply distributor disk according to claim 2 or 3, it is characterised in that the cathode of battery
After negative bus bar in understructure is connected in cabinet, be directly connected to the cathode of each power distribution unit.
6. a kind of new-energy automobile high voltage power supply distributor disk according to claim 2 or 3, it is characterised in that on the cabinet
It is provided with charge port, the anode of charge port is connected to the anode of battery, charge port by the anode switching copper bar in superstructure
Cathode the cathode of battery is connected to by the negative bus bar in understructure.
7. a kind of new-energy automobile high voltage power supply distributor disk according to claim 1, it is characterised in that the installation foot is
Absolute construction, a cabinet include four installation feet, and each installation foot is connect by screw with cabinet.
8. a kind of new-energy automobile high voltage power supply distributor disk according to claim 7, it is characterised in that the installation foot is Z
Character form structure.
9. a kind of new-energy automobile high voltage power supply distributor disk according to claim 8, it is characterised in that the peace of zigzag structure
Dress foot each edge be inwardly under turn over bead structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920260188.1U CN209521546U (en) | 2019-03-01 | 2019-03-01 | A kind of new-energy automobile high voltage power supply distributor disk |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920260188.1U CN209521546U (en) | 2019-03-01 | 2019-03-01 | A kind of new-energy automobile high voltage power supply distributor disk |
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| CN209521546U true CN209521546U (en) | 2019-10-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110988727A (en) * | 2019-12-19 | 2020-04-10 | 江西优特汽车技术有限公司 | Low-cost multifunctional universal BDU detection tool system |
-
2019
- 2019-03-01 CN CN201920260188.1U patent/CN209521546U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110988727A (en) * | 2019-12-19 | 2020-04-10 | 江西优特汽车技术有限公司 | Low-cost multifunctional universal BDU detection tool system |
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