CN212784800U - Split type high-voltage box of power battery system - Google Patents
Split type high-voltage box of power battery system Download PDFInfo
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- CN212784800U CN212784800U CN202020972157.1U CN202020972157U CN212784800U CN 212784800 U CN212784800 U CN 212784800U CN 202020972157 U CN202020972157 U CN 202020972157U CN 212784800 U CN212784800 U CN 212784800U
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Abstract
The utility model discloses a split type high-pressure box of power battery system, anodal high-pressure box are including anodal box body base, anodal box body base is equipped with the connection port that constitutes by the outside total positive connection port of battery and the inside total positive connection port of battery, the inside of anodal box body base is equipped with four circuit installation units, and negative pole high-pressure box is including negative pole box body base. The utility model discloses use two plastic housing to encapsulate battery system's positive terminal high-tension electricity device and negative pole end high-tension electricity device separation in different plastic housing, and through the bolt fastening in battery box bottom, positive negative pole high-tension electricity device has been kept apart promptly, keep apart electrical part and battery box again, thereby improve insulating barrier propterty, and can use in the battery system of single box, also can use in the battery system of a plurality of boxes, among the battery system of a plurality of boxes has been solved, the condition in the battery box need be installed to the high-pressure box, application scope has been increased.
Description
Technical Field
The utility model relates to a high voltage distribution box technical field for the power battery specifically is a power battery system's split type high-pressure box.
Background
With the development of social economy and the improvement of the living standard of people, the power battery system is used as one of main power energy sources of a new energy automobile and plays an important role in the development of new energy. The high-voltage distribution box of the battery system is a main protection and energy transmission unit in a high-voltage loop of the power battery system, and plays a role in protecting the power battery system and distributing power transmission in the charging and discharging processes of the power battery system.
The existing high-voltage distribution box lacks effective dustproof, electric shock prevention and electricity leakage prevention functions, is poor in insulating property and low in safety performance, and is easy to cause electric leakage or electric shock of people due to poor insulating property in the later maintenance and use processes, so that the phenomenon of burning and explosion finally caused by casualties or unbalance of a power battery system is generated. Therefore, it is desirable to provide a split high-voltage box of a power battery system to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a power battery system's split type high-pressure box, use two plastic housing to encapsulate battery system's positive terminal high-tension electricity device and negative pole end high-tension electricity device separation in different plastic housing, and through the bolt fastening in battery box bottom, positive negative pole high-tension electricity device has been kept apart promptly, keep apart electrical part and battery box again, thereby improve insulating barrier propterty, and can use in the battery system of single box, also can use in the battery system of a plurality of boxes, among the battery system of a plurality of boxes has been solved, the condition in the battery box need be installed to high-pressure box, application scope has been increased, in order to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a split high-voltage box of a power battery system comprises an anode high-voltage box and a cathode box body base, the base of the positive box body is provided with a connecting port consisting of a total positive connecting port outside the battery and a total positive connecting port inside the battery, four circuit installation units are arranged inside the positive box body base, each circuit installation unit comprises a main positive high-voltage unit, a pre-charging circuit unit, a heating control unit and an information acquisition control unit, the main positive high-voltage unit comprises a main positive relay, the pre-charging circuit unit comprises a pre-charging relay and a pre-charging resistor, the heating control unit comprises a heating relay, and the information acquisition control unit comprises a first connector, a total positive voltage Link + acquisition wiring harness outside the battery, a total positive voltage Bat + acquisition wiring harness inside the battery, a heating positive voltage Hot + acquisition wiring harness, and a control wiring harness of a main positive and pre-charging and heating relay;
the negative high-voltage box comprises a negative box body base, a connecting port consisting of a battery external total negative connecting port, a battery internal total negative connecting port and a heating negative connecting port is arranged in the negative box body base, two circuit installation units are arranged in the negative box body base and comprise a main negative high-voltage unit and an information acquisition control unit, the main negative high-voltage unit comprises a main negative relay, a shunt, a main fuse and a heating fuse, and the information acquisition control unit comprises a second connector, a battery external total negative voltage Link-acquisition wiring harness, a battery internal total negative voltage Bat-acquisition wiring harness, a heating negative Hot-voltage acquisition wiring harness, a main negative relay control wiring harness and a current acquisition wiring harness;
the high-voltage loop of the battery system is connected: the battery inner main positive is connected with the battery inner main positive connection port through a power connection cable and the positive electrode high-voltage box; the battery comprises a main positive relay, a positive high-voltage box, a negative contact of the main positive relay, a total positive connection port outside the battery, a total negative connection port outside the battery, a negative high-voltage box, a total negative connection port outside the battery, a main fuse and a negative high-voltage box, wherein the total positive connection port outside the battery is connected with the total positive connection port of the battery of the whole vehicle high-voltage box, the total negative connection port of the battery of the whole vehicle high-voltage box is connected with the total negative connection port of the battery of the whole vehicle high-voltage box through a whole vehicle electric device or a rear part, the total negative connection port of the battery of the whole vehicle high-voltage box is connected with the negative high-voltage box, the other connection port of the main fuse is connected with, the negative port of the main negative relay is connected with the positive port of the shunt of the negative high-voltage box, and the negative port of the shunt of the negative high-voltage box is connected with the total negative connection port in the battery of the negative high-voltage box; the battery internal total negative connection port of the negative electrode high-voltage box is connected with the battery internal total negative;
the pre-charging loop is connected: the positive port of the main positive relay of the positive high-voltage box is connected with the positive port of the pre-charging relay of the positive high-voltage box, the negative port of the pre-charging relay is connected with one connecting port of the pre-charging resistor, and the other connecting port of the pre-charging resistor is connected with the negative port of the main positive relay;
the heating loop is connected: the negative port of the main positive relay of the positive high-voltage box is connected with the positive port of the heating relay of the positive high-voltage box, the negative port of the heating relay of the positive high-voltage box is connected with the heating positive connecting port of the positive high-voltage box, the heating positive connecting port of the positive high-voltage box is connected with one connecting port of the heating film or the heating PTC, the other connecting port of the heating film or the heating PTC is connected with the heating negative connecting port of the negative high-voltage box, the heating negative connecting port of the negative high-voltage box is connected with one connecting port of the heating fuse of the negative high-voltage box, and the other connecting port of the heating fuse is connected with the positive connecting port of the main negative relay of the negative high-voltage box;
the positive electrode high-voltage box information acquisition control unit: the positive electrode high-voltage box is connected with a corresponding pin of the first connector of the positive electrode high-voltage box through an electric wire, wherein the total positive voltage Link + outside the battery is collected by a wire harness, the total positive voltage Bat + inside the battery is collected by a wire harness, the heating positive voltage Hot + is collected by a wire harness, and a control wire harness of the main positive and pre-charging and heating relay is connected with the corresponding pin of the first connector of the positive electrode high-voltage box;
negative pole high-voltage box information acquisition control unit: the negative electrode high voltage box is characterized in that the total negative voltage Link-acquisition wiring harness outside the battery, the total negative voltage Bat-acquisition wiring harness inside the battery, the heating negative electrode Hot-voltage acquisition wiring harness, the main negative relay control wiring harness and the current acquisition wiring harness are connected with corresponding pins of the second connector of the negative electrode high voltage box through electric wires.
Preferably, the positive pole box body base passes through the inside of bolt fastening in battery box, negative pole box body base also passes through the inside of bolt fastening in battery box, just positive pole box body base and negative pole box body base interval set up.
Preferably, the positive box body base is arranged in a rectangular shape, and the negative box body base is matched with the positive box body base in a rectangular shape.
Preferably, the tab contact in the positive box base is a copper sheet, and the tab contact in the negative box base is also a copper sheet.
Preferably, the inner side of the anode box body base is glued with a flame-retardant rubber layer, and the inner side of the cathode box body base is also glued with a flame-retardant rubber layer.
Compared with the prior art, the beneficial effects of the utility model are that: the two plastic shells are used for separately packaging the positive end high-voltage electric part and the negative end high-voltage electric part of the battery system in different plastic shells and are fixed at the bottom of the battery box body through bolts, so that the positive and negative high-voltage electric parts are isolated, and the electric parts are isolated from the battery box body, so that the insulating and protecting performance is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the positive electrode high voltage box of the present invention;
fig. 2 is a schematic view of the overall structure of the negative electrode high voltage box of the present invention;
fig. 3 is an electrical wiring diagram of the positive electrode high-voltage box of the present invention;
fig. 4 is the electrical wiring diagram of the negative electrode high voltage box of the present invention.
In the figure: 1. a positive cartridge base; 2. a battery external main positive connection port; 3. a battery internal main positive connection port; 4. heating the positive connection port; 5. a main positive relay; 6. a pre-charging relay; 7. pre-charging a resistor; 8. heating the relay; 9. a first connector; 10. a total positive voltage Link + outside the battery collects a wiring harness; 11. collecting a wiring harness by using a total positive voltage Bat + in the battery; 12. heating the positive voltage Hot + collecting wire harness; 13. a main positive and pre-charge and heating relay control harness; 14. a negative cartridge base; 15. a battery external total negative connection port; 16. a battery internal total negative connection port; 17. heating the negative connection port; 18. A main negative relay; 19. a flow divider; 20. a main fuse; 21. heating the fuse; 22. a second connector; 23. a total negative voltage Link-acquisition wire harness outside the battery; 24. acquiring a total negative voltage Bat inside the battery; 25. heating the negative pole Hot-voltage acquisition wire harness; 26. the main and negative relays control the wire harness; 27. and collecting the current by a wire harness.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a split high voltage cartridge for a power battery system, comprising:
the positive high-voltage box comprises a positive box body base 1, the positive box body base 1 is provided with a connection port formed by a total positive connection port 2 outside the battery and a total positive connection port 3 inside the battery, four circuit installation units are arranged inside the positive box body base 1, each circuit installation unit comprises a main positive high-voltage unit, a pre-charging circuit unit, a heating control unit and an information acquisition control unit, each main positive high-voltage unit comprises a main positive relay 5, each pre-charging circuit unit comprises a pre-charging relay 6 and a pre-charging resistor 7, each heating control unit comprises a heating relay 8, each information acquisition control unit comprises a first connector 9, a total positive voltage Link + acquisition wiring harness 10 outside the battery, a total positive voltage Bat + acquisition wiring harness 11 inside the battery, a heating positive voltage Hot + acquisition wiring harness 12 and a control wiring harness 13 of the main positive and pre-charging and heating relays;
the negative high-voltage box comprises a negative box body base 14, a connection port consisting of a battery external total negative connection port 15, a battery internal total negative connection port 16 and a heating negative connection port 17 is arranged in the negative box body base 14, two circuit installation units are arranged in the negative box body base 14, each circuit installation unit comprises a main negative high-voltage unit and an information acquisition control unit, each main negative high-voltage unit comprises a main negative relay 18, a shunt 19, a main fuse 20 and a heating fuse 21, each information acquisition control unit comprises a second connector 22, a battery external total negative voltage Link-acquisition wiring harness 23, a battery internal total negative voltage Bat-acquisition wiring harness 24, a heating negative Hot-voltage acquisition wiring harness 25, a main negative relay control wiring harness 26 and a current acquisition wiring harness 27;
the high-voltage loop of the battery system is connected: the battery inner main positive is connected with the positive electrode high-voltage box battery inner main positive connection port 3 through a power connection cable; the battery inner total positive connecting port 3 of the positive high-voltage box is connected with the positive contact of the positive high-voltage box main positive relay 5, the negative contact of the positive high-voltage box main positive relay 5 is connected with the battery outer total positive connecting port 2 of the positive high-voltage box, the battery outer total positive connecting port 2 of the positive high-voltage box is connected with the battery total positive connecting interface of the whole vehicle high-voltage distribution box, the battery total positive connecting port of the whole vehicle high-voltage distribution box is connected with the battery total negative connecting interface of the whole vehicle high-voltage distribution box through a whole vehicle electric device or a rear vehicle electric device, the battery total negative connecting interface of the whole vehicle high-voltage distribution box is connected with the battery outer total negative connecting port 15 of the negative high-voltage box, the battery outer total negative connecting port 15 of the negative high-voltage box is connected with a connecting port of the negative high-voltage box main fuse 20, the other connecting port of the main fuse 20 is, the negative port of the main negative relay 18 is connected with the positive port of the negative high-voltage box shunt 19, and the negative port of the negative high-voltage box shunt 19 is connected with the total negative connection port 16 in the negative high-voltage box battery; the negative electrode high-voltage box battery internal total negative connection port 16 is connected with the battery internal total negative;
in the negative electrode high-voltage box system, if the shunt 19 is not used but a Hall current sensor is used, only a copper bar or a power cable which is connected with the Hall current sensor in series at the shunt 19 needs to be replaced, so that the whole vehicle and the power battery system form a high-voltage main loop of the power battery system through the positive electrode high-voltage box and the negative electrode high-voltage box;
the pre-charging loop is connected: the positive port of the positive high-voltage box main positive relay 5 is connected with the positive port of the positive high-voltage box pre-charging relay 6, the negative port of the pre-charging relay 6 is connected with one connection port of the pre-charging resistor 7, and the other connection port of the pre-charging resistor 7 is connected with the negative port of the main positive relay 5, so that a pre-charging loop is formed;
the heating loop is connected: the negative port of the positive high-voltage box main positive relay 5 is connected with the positive port of the positive high-voltage box heating relay 8, the negative port of the positive high-voltage box heating relay 8 is connected with the positive heating connecting port 4 of the positive high-voltage box, the positive heating connecting port 4 of the positive high-voltage box is connected with one connecting port of the heating film or the heating PTC, the other connecting port of the heating film or the heating PTC is connected with the negative heating connecting port 17 of the negative high-voltage box, the negative heating connecting port 17 of the negative high-voltage box heating fuse 21 is connected with one connecting port of the negative high-voltage box heating fuse 21, the other connecting port of the heating fuse 21 is connected with the positive connecting port of the negative high-voltage box main negative relay 18, and thus the battery system and the heating film or the heating PTC form a heating loop;
the positive electrode high-voltage box information acquisition control unit: the positive electrode high-voltage box comprises a positive electrode high-voltage box battery external total positive voltage Link + acquisition wiring harness 10, a battery internal total positive voltage Bat + acquisition wiring harness 11, a heating positive electrode voltage Hot + acquisition wiring harness 12, and a main positive and pre-charging and heating relay control wiring harness 13 which are connected with the positive electrode high-voltage box and a corresponding pin of a first connector 9 through wires to form a positive electrode high-voltage box information acquisition control unit;
negative pole high-voltage box information acquisition control unit: the negative electrode high voltage box battery external total negative voltage Link-acquisition wiring harness 23, the battery internal total negative voltage Bat-acquisition wiring harness 24, the heating negative electrode Hot-voltage acquisition wiring harness 25, the main negative relay control wiring harness 26 and the current acquisition wiring harness 27 are connected with corresponding pins of the negative electrode high voltage box second connector 22 through electric wires to form a negative electrode high voltage box information acquisition control unit.
The positive box body base 1 is fixed inside the battery box through bolts, the negative box body base 14 is also fixed inside the battery box through bolts, and the positive box body base 1 and the negative box body base 14 are arranged at intervals, so that positive and negative high-voltage electric devices are isolated, and the electric devices are isolated from the battery box body, and therefore the insulation protection effect is improved.
For the convenience of using the positive box body base 1 to be the rectangle setting, the negative box body base 14 cooperates with the positive box body base 1 to be the rectangle setting, and the utmost point ear contact in the positive box body base 1 is copper sheetmetal, and the utmost point ear contact in the negative box body base 14 also is copper sheetmetal.
For the purpose of flame-retardant protection treatment, the inner side of the positive box base 1 is glued with a flame-retardant rubber layer, and the inner side of the negative box base 14 is also glued with a flame-retardant rubber layer.
The specific use description is as follows: the two plastic shells are used for separately packaging the positive end high-voltage electric part and the negative end high-voltage electric part of the battery system in different plastic shells and are fixed at the bottom of the battery box body through bolts, so that the positive and negative high-voltage electric parts are isolated, and the electric parts are isolated from the battery box body, so that the insulating and protecting performance is improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A split type high-voltage box of a power battery system is characterized by comprising:
anodal high-voltage box is including anodal box body base (1), anodal box body base (1) is equipped with the connection port that constitutes by battery outside total positive connection port (2) and battery inside total positive connection port (3), the inside of anodal box body base (1) is equipped with four circuit installation units, and circuit installation unit is including main positive high-voltage unit, pre-charge circuit unit, heating control unit and information acquisition control unit, main positive high-voltage unit is including main positive relay (5), pre-charge circuit unit is including pre-charge relay (6), pre-charge resistance (7), heating control unit is including heating relay (8), information acquisition control unit includes first connector (9), battery outside total positive voltage Link + gathers pencil (10), battery inside total positive voltage Bat + gathers pencil (11), heating positive voltage Hot + gathers pencil (12), A control harness (13) for main positive and pre-charge and heating relays;
the negative high-voltage box comprises a negative box body base (14), a connection port consisting of a battery external total negative connection port (15), a battery internal total negative connection port (16) and a heating negative connection port (17) is arranged in the negative box body base (14), two circuit installation units are arranged in the negative box body base (14), each circuit installation unit comprises a main negative high-voltage unit and an information acquisition control unit, the main negative high-voltage unit comprises a main negative relay (18), a shunt (19), a main fuse (20) and a heating fuse (21), the information acquisition control unit comprises a second connector (22), a total negative voltage Link-acquisition wiring harness (23) outside the battery, a total negative voltage Bat-acquisition wiring harness (24) inside the battery, a heating negative pole Hot-voltage acquisition wiring harness (25), a main negative relay control wiring harness (26) and a current acquisition wiring harness (27);
the high-voltage loop of the battery system is connected: the battery inner main positive is connected with the battery inner main positive connecting port (3) of the positive electrode high-voltage box through a power connecting cable; the battery comprises a positive high-voltage box, a total positive connection port (3) inside the battery and the positive high-voltage box, wherein the positive contact of the main positive relay (5) is connected, the negative contact of the main positive relay (5) is connected with the positive high-voltage box, the total positive connection port (2) outside the battery is connected with the total positive connection interface of the battery of the whole vehicle high-voltage distribution box, the total positive connection port of the battery of the whole vehicle high-voltage distribution box is connected with the total negative connection interface of the battery of the whole vehicle high-voltage distribution box through a whole vehicle electric device or a rear connection part, the total negative connection interface of the battery of the whole vehicle high-voltage distribution box is connected with the negative high-voltage box, the total negative connection port (15) outside the battery is connected with the total negative connection port of the negative high-voltage box, and a connection port of the main fuse (, the other connecting port of the main fuse (20) is connected with the positive port of the main negative relay (18) of the negative high-voltage box, the negative port of the main negative relay (18) is connected with the positive port of the shunt (19) of the negative high-voltage box, and the negative port of the shunt (19) of the negative high-voltage box is connected with the battery internal total negative connecting port (16) of the negative high-voltage box; the negative electrode high-voltage box is connected with the battery inner total negative connection port (16) through a negative electrode high-voltage box;
the pre-charging loop is connected: the positive port of the main positive relay (5) of the positive high-voltage box is connected with the positive port of the pre-charging relay (6) of the positive high-voltage box, the negative port of the pre-charging relay (6) is connected with one connecting port of the pre-charging resistor (7), and the other connecting port of the pre-charging resistor (7) is connected with the negative port of the main positive relay (5);
the heating loop is connected: the negative port of the main positive relay (5) of the positive high-voltage box is connected with the positive port of the heating relay (8) of the positive high-voltage box, the negative port of the heating relay (8) of the positive high-voltage box is connected with the heating positive connecting port (4) of the positive high-voltage box, the heating positive connecting port (4) of the positive high-voltage box is connected with the connecting port of the heating film or the heating PTC, the other connecting port of the heating film or the heating PTC is connected with the heating negative connecting port (17) of the negative high-voltage box, the heating negative connecting port (17) of the negative high-voltage box is connected with the connecting port of the heating fuse (21) of the negative high-voltage box, and the other connecting port of the heating fuse (21) is connected to the positive connecting port of the main negative relay (18) of the negative high-voltage box;
the positive electrode high-voltage box information acquisition control unit: the positive electrode high-voltage box is connected with a corresponding pin of the first connector (9) of the positive electrode high-voltage box through an electric wire, wherein the total positive voltage Link + outside the battery is connected with a collecting wire harness (10), the total positive voltage Bat + inside the battery is connected with a collecting wire harness (11), the heating positive voltage Hot + is connected with a collecting wire harness (12), and a control wire harness (13) of a main positive and pre-charging and heating relay is connected with the corresponding pin of the first connector (9) of the;
negative pole high-voltage box information acquisition control unit: the negative electrode high-voltage box is characterized in that the negative electrode high-voltage box is connected with a negative electrode high-voltage box through a corresponding pin of the second connector (22) through an electric wire, and the negative electrode high-voltage box comprises a total negative voltage Link-acquisition wiring harness (23) outside the battery, a total negative voltage Bat-acquisition wiring harness (24) inside the battery, a heating negative electrode Hot-voltage acquisition wiring harness (25), a main negative relay control wiring harness (26) and a current acquisition wiring harness (27).
2. The split high-voltage box of the power battery system according to claim 1, wherein: anodal box body base (1) passes through the inside of bolt fastening in battery box, negative pole box body base (14) also pass through the inside of bolt fastening in battery box, just anodal box body base (1) and negative pole box body base (14) interval set up.
3. The split high-voltage box of the power battery system according to claim 1, wherein: anodal box body base (1) is the rectangle setting, anodal box body base (1) is the rectangle setting in negative pole box body base (14) cooperation.
4. The split high-voltage box of the power battery system according to claim 1, wherein: the tab contact in the positive box body base (1) is a copper metal sheet, and the tab contact in the negative box body base (14) is also a copper metal sheet.
5. The split high-voltage box of the power battery system according to claim 1, wherein: the inner side of the anode box body base (1) is glued with a flame-retardant rubber layer, and the inner side of the cathode box body base (14) is also glued with a flame-retardant rubber layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020972157.1U CN212784800U (en) | 2020-06-01 | 2020-06-01 | Split type high-voltage box of power battery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020972157.1U CN212784800U (en) | 2020-06-01 | 2020-06-01 | Split type high-voltage box of power battery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212784800U true CN212784800U (en) | 2021-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020972157.1U Expired - Fee Related CN212784800U (en) | 2020-06-01 | 2020-06-01 | Split type high-voltage box of power battery system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212784800U (en) |
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2020
- 2020-06-01 CN CN202020972157.1U patent/CN212784800U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20210323 Termination date: 20210601 |