CN219321290U

CN219321290U - General high-voltage breaking module

Info

Publication number: CN219321290U
Application number: CN202320146954.8U
Authority: CN
Inventors: 吴兵兵; 胡杰; 董厚福; 李玲; 陈杨; 梁栋; 马兵; 席军校; 臧悦
Original assignee: Anhui Jianglong New Energy Technology Co ltd
Current assignee: Anhui Jianglong New Energy Technology Co ltd
Priority date: 2023-02-08
Filing date: 2023-02-08
Publication date: 2023-07-07
Anticipated expiration: 2033-02-08

Abstract

The utility model relates to the technical field of lithium battery packs of new energy industrial vehicles, and particularly discloses a general high-voltage breaking module which comprises a lower shell and a part group, wherein the part group is arranged in the lower shell; the part group comprises a shunt, a main protector, a relay unit, a pre-charging resistor, a DCDC power supply and a heating protector, wherein the shunt, the main protector, the pre-charging resistor, the DCDC power supply and the heating protector are fixedly connected with the lower shell and are positioned in the lower shell; through the setting of above-mentioned structure, the part group is installed in lower casing, and lower casing has a plurality of mounting grooves, and shunt, main insurance, relay unit, pre-charge resistance, DCDC power and heating insurance are installed respectively in corresponding mounting groove, and mounted position is clear and definite, is difficult for mixing up, makes the integrated level of general type high-voltage segmentation module high, and is multiple functional, and the mountability is high, and the equipment of copper bar is more convenient, has effectively improved the packaging efficiency of high-voltage breaking module, shortens the exchange period of lithium cell package.

Description

General high-voltage breaking module

Technical Field

The utility model relates to the technical field of lithium battery packs of new energy industrial vehicles, in particular to a general high-voltage breaking module.

Background

With the progress of lithium battery technology, new energy automobiles are further accepted by markets, meanwhile, due to the environmental protection requirement, lithium electrochemical of industries such as industrial vehicles, photovoltaics, energy storage, ships, airplanes and the like is accelerated, but the fields all use direct-current high-current power transmission technology, and the requirements on the aspect of electricity safety are higher.

Application number: 201420526177.0; the utility model discloses an electric automobile high voltage direct current power supply distributor, it includes box and case lid, its technical essential is: the box body is internally provided with a positive electrode layer and a negative electrode layer, the positive electrode layer is provided with a positive electrode insulating plate and a positive electrode conducting plate, and the side wall of the box body corresponding to the positive electrode conducting plate is provided with a positive electrode input connector and a positive electrode output connector; the negative electrode layer is provided with a negative electrode insulating plate and a negative electrode conducting plate, and a negative electrode input connector and a negative electrode output connector are arranged on the side wall of the box body corresponding to the negative electrode conducting plate. Compared with other modes, the utility model has the advantages of simple and practical structure, and can carry out internal change design according to the condition of a sample car; meanwhile, the internal fuse plays a role in protecting the high-voltage direct-current wire harness, and safety is effectively improved. The high-voltage direct-current electric energy of the battery pack of the electric automobile is distributed to all electric equipment of the electric automobile through the device, so that the use requirements of all electric systems of the electric automobile are met.

The vehicle direct current high voltage transmission technology of the comparison document mainly adopts a customized mounting plate scheme, and aims at solving the problems of low integration level, low space utilization rate, complex disassembly and assembly and long exchange period of components such as an internal relay and the like, and a universal high voltage breaking module is provided.

Disclosure of Invention

The utility model aims to provide a general high-voltage breaking module, which aims to solve the problems of low integration level, complex disassembly and assembly and exchange period of the prior art that the direct-current high-current transmission technology mainly adopts a customized mounting plate scheme.

The technical scheme of the utility model is as follows:

the device comprises a lower shell and a part group, wherein the part group is arranged in the lower shell; the part group comprises a current divider, a main fuse, a relay unit, a pre-charging resistor, a DCDC power supply and a heating fuse, wherein the current divider, the main fuse, the pre-charging resistor, the DCDC power supply and the heating fuse are fixedly connected with the lower shell and are located in the lower shell, and the relay unit is arranged in the lower shell.

Further, the relay unit includes two relay installing support, heating relay, pre-charge relay, discharge relay and charging relay, two the relay installing support all with lower casing fixed connection, and all be located the inside of lower casing, discharge relay with charging relay respectively with two the relay installing support dismantles to be connected, and be located two respectively the top of relay installing support.

Further, the part group further comprises a first copper bar, a second copper bar, a third copper bar, a fourth copper bar, a fifth copper bar, a sixth copper bar and a seventh copper bar, wherein one end of the first copper bar is fixedly connected with one end of the shunt, one end of the second copper bar is fixedly connected with the main safety, one end of the third copper bar is fixedly connected with the output end of the discharge relay, one end of the fourth copper bar is fixedly connected with the output end of the charge relay, one end of the fifth copper bar is fixedly connected with the heating relay, one end of the sixth copper bar is far away from one end of the first copper bar by the shunt, one end of the seventh copper bar is fixedly connected with one end of the main safety, the other end of the seventh copper bar is fixedly connected with the input end of the charge relay, the middle part of the seventh copper bar is fixedly connected with the input end of the discharge relay, and the first copper bar, the second copper bar, the third copper bar, the fourth copper bar and the other end of the fourth copper bar are abutted against one end of the first copper bar, the fourth copper bar and the fifth copper bar.

Further, the part group further comprises a plurality of wire harnesses, a control interface and a power interface, the seventh copper bar is respectively communicated with one end of the pre-charging resistor and the power interface through corresponding wire harnesses, the other end of the pre-charging resistor is communicated with the input end of the pre-charging relay through corresponding wire harnesses, the output end of the pre-charging relay is communicated with the third copper bar through corresponding wire harnesses, the fourth copper bar is communicated with one end of the heating fuse through corresponding wire harnesses, the other end of the heating fuse is communicated with the input end of the heating relay through corresponding wire harnesses, and the power interface is communicated with the input positive end of the DCDC power supply through corresponding wire harnesses.

Further, the general high-voltage breaking module further comprises an upper cover, wherein the upper cover is provided with a first notch, a second notch, a third notch and a fourth notch, the upper cover is detachably connected with the lower shell and is positioned above the lower shell, the first copper bar is attached to the first notch, the second copper bar is attached to the second notch, the third copper bar is attached to the third notch, and the fourth copper bar is attached to the fourth notch.

The utility model provides a general high-voltage breaking module through improvement, which has the following improvement and advantages compared with the prior art:

the method comprises the following steps: according to the utility model, the part group is arranged in the lower shell, the lower shell is provided with a plurality of mounting grooves, the current divider, the main insurance, the relay unit, the pre-charging resistor, the DCDC power supply and the heating insurance are respectively arranged in the corresponding mounting grooves, the mounting positions are clear and clear, the confusion is not easy, the integration level of the general high-voltage sectional module is high, the functions are complete, the mountability is high, the copper bars are more convenient to assemble, the assembly efficiency of the high-voltage sectional module is effectively improved, and the exchange period of the lithium battery pack is shortened.

Drawings

The utility model is further explained below with reference to the drawings and examples:

fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic view of the structure of the present utility model with the upper cover removed.

Fig. 3 is a top view of the present utility model.

Fig. 4 is a circuit diagram of the present utility model.

Reference numerals illustrate: 1. a first copper bar; 2. a second copper bar; 3. a third copper bar; 4. a fourth copper bar; 5. a control interface; 6. a power interface; 7. a fifth copper bar; 8. a sixth copper bar; 9. a lower housing; 10. an upper cover; 11. a shunt; 12. a main insurance; 13. a seventh copper bar; 14. a discharge relay; 15. a charging relay; 16. a relay mounting bracket; 17. heating relay; 18. a wire harness; 19. pre-charging a resistor; 20. a DCDC power supply; 21. pre-charging a relay; 22. heating and protecting; 23. a first notch; 24. a second notch; 25. a third notch; 26. and a fourth notch.

Detailed Description

The following detailed description of the present utility model will provide clear and complete description of the technical solutions of the embodiments of the present utility model, with reference to fig. 1 to 4, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a general high-voltage breaking module by improvement, as shown in fig. 1-4, comprising a lower shell 9 and a part group, wherein the part group is arranged inside the lower shell 9; the part group comprises a shunt 11, a main protector 12, a relay unit, a pre-charging resistor 19, a DCDC power supply 20 and a heating protector 22, wherein the shunt 11, the main protector 12, the pre-charging resistor 19, the DCDC power supply 20 and the heating protector 22 are fixedly connected with the lower shell 9 and are located in the lower shell 9, and the relay unit is arranged in the lower shell 9.

In this embodiment, the component group is mounted in the lower housing 9, the lower housing 9 has a plurality of mounting grooves, and the shunt 11, the main fuse 12, the relay unit, the pre-charging resistor 19, the DCDC power supply 20 and the heating fuse 22 are respectively mounted in the corresponding mounting grooves, so that the mounting positions are clear and are not easy to be confused, and the integration level of the general high-voltage segmentation module is high, the functions are complete, and the mountability is high.

Further, the relay unit includes two relay mounting brackets 16, a heating relay 17, a pre-charging relay 21, a discharging relay 14 and a charging relay 15, two relay mounting brackets 16 are fixedly connected with the lower housing 9 and are located inside the lower housing 9, and the discharging relay 14 and the charging relay 15 are respectively connected with the two relay mounting brackets 16 in a detachable manner and are respectively located above the two relay mounting brackets 16.

In the present embodiment, two relay mounting brackets 16 are used to mount the discharge relay 14 and the charge relay 15, and both the discharge relay 14 and the charge relay 15 function as control circuits.

The part group further comprises a first copper bar 1, a second copper bar 2, a third copper bar 3, a fourth copper bar 4, a fifth copper bar 7, a sixth copper bar 8 and a seventh copper bar 13, one end of the first copper bar 1 is fixedly connected with the shunt 11, one end of the second copper bar 2 is fixedly connected with the main safety 12, the third copper bar 3 is fixedly connected with the output end of the discharge relay 14, one end of the fourth copper bar 4 is fixedly connected with the output end of the charge relay 15, one end of the fifth copper bar 7 is fixedly connected with the heating relay 17, one end of the sixth copper bar 8 is fixedly connected with one end of the shunt 11 far away from the first copper bar 1, one end of the seventh copper bar 13 is fixedly connected with one end of the main safety 12 far away from the second copper bar 2, the other end of the seventh copper bar 13 is fixedly connected with the input end of the charge relay 15, the middle part of the seventh copper bar 7 is abutted to the other ends of the first copper bar 7, the second copper bar 7 and the third copper bar 7 are fixedly connected with the upper end of the fourth copper bar 7 and the fourth copper bar 7.

In this embodiment, the first copper bar 1 has a discharging negative and charging load heating negative interface, the second copper bar 2 has a battery positive interface, the third copper bar 3 has a discharging positive interface, the fourth copper bar 4 has a charging positive interface, the fifth copper bar 7 has a heating positive interface, the sixth copper bar 8 has a battery negative interface, the seventh copper bar 13 is connected with the copper bar, the battery positive interface on the second copper bar 2 is connected to one end of the main insurance 12, the other end of the main insurance 12 is respectively connected with the discharging relay 14 input and the charging relay 15 input through the seventh copper bar 13, the discharging relay 14 output is output through the discharging positive interface of the third copper bar 3, the charging relay 15 output is output through the charging positive interface of the fourth copper bar 4, the heating relay 17 output is output through the heating positive interface of the fifth copper bar 7, the battery negative interface of the sixth copper bar 8 is connected to one end of the main insurance 12 through the seventh copper bar 13, and the discharging relay 15 output is output through the charging relay 11 and the charging relay 11 output through the negative load output of the third copper bar 1.

The part group further comprises a plurality of wire harnesses 18, a control interface 5 and a power interface 6, wherein the seventh copper bar 13 is respectively communicated with one end of the pre-charging resistor 19 and the power interface 6 through the corresponding wire harnesses 18, the other end of the pre-charging resistor 19 is communicated with the input end of the pre-charging relay 21 through the corresponding wire harnesses 18, the output end of the pre-charging relay 21 is communicated with the third copper bar 3 through the corresponding wire harnesses 18, the fourth copper bar 4 is communicated with one end of the heating insurance 22 through the corresponding wire harnesses 18, the other end of the heating insurance 22 is communicated with the input end of the heating relay 17 through the corresponding wire harnesses 18, and the power interface 6 is communicated with the input positive end of the DCDC power supply 20 through the corresponding wire harnesses 18.

In this embodiment, the wire harness 18 plays a role of communication, and the control interface 5 and the power interface 6 are respectively used for connecting an external control wire and a power wire.

The universal high-voltage breaking module further comprises an upper cover 10, the upper cover 10 is provided with a first notch 23, a second notch 24, a third notch 25 and a fourth notch 26, the upper cover 10 is detachably connected with the lower shell 9 and is located above the lower shell 9, the first copper bar 1 is attached to the first notch 23, the second copper bar 2 is attached to the second notch 24, the third copper bar 3 is attached to the third notch 25, and the fourth copper bar 4 is attached to the fourth notch 26.

In this embodiment, the upper cover 10 seals the lower housing 9, so as to fix the part group in the lower housing 9, and also protect the part group, and the upper cover 10 has the first notch 23, the second notch 24, the third notch 25 and the fourth notch 26, and external connection cables can be directly connected to the first copper bar 1, the second copper bar 2, the third copper bar 3 and the fourth copper bar 4 from the first notch 23, the second notch 24, the third notch 25 and the fourth notch 26 respectively, so that the copper bar is more convenient to assemble, the assembly efficiency of the high-voltage breaking module is effectively improved, and the exchange period of the lithium battery pack is shortened.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A general high-voltage breaking module is characterized in that: comprises a lower shell (9) and a part group, wherein the part group is arranged in the lower shell (9); the part group comprises a shunt (11), a main insurance (12), a relay unit, a pre-charging resistor (19), a DCDC power supply (20) and a heating insurance (22), wherein the shunt (11), the main insurance (12), the pre-charging resistor (19), the DCDC power supply (20) and the heating insurance (22) are fixedly connected with the lower shell (9) and are both positioned in the lower shell (9), and the relay unit is arranged in the lower shell (9).

2. A universal high voltage breaking module according to claim 1, characterized in that: the relay unit comprises two relay mounting brackets (16), a heating relay (17), a pre-charging relay (21), a discharging relay (14) and a charging relay (15), wherein the two relay mounting brackets (16) are fixedly connected with the lower shell (9) and are positioned in the lower shell (9), and the discharging relay (14) and the charging relay (15) are respectively connected with the two relay mounting brackets (16) in a detachable mode and are respectively positioned above the two relay mounting brackets (16).

3. A universal high voltage breaking module according to claim 2, characterized in that: the part group still includes first copper bar (1), second copper bar (2), third copper bar (3), fourth copper bar (4), fifth copper bar (7), sixth copper bar (8) and seventh copper bar (13), the one end of first copper bar (1) with shunt (11) fixed connection, the one end of second copper bar (2) with main insurance (12) fixed connection, third copper bar (3) with the output fixed connection of discharge relay (14), the one end of fourth copper bar (4) with the output fixed connection of charge relay (15), the one end of fifth copper bar (7) with add thermal relay (17) fixed connection, the one end of sixth copper bar (8) with shunt (11) keep away from the one end fixed connection of first copper bar (1), the one end of seventh copper bar (13) with main insurance (12) keep away from the output fixed connection of second copper bar (2), the one end of fourth copper bar (4) with the output fixed connection of charge relay (15), the one end of seventh copper bar (7) with the other end of charge relay (17) fixed connection, the other end of seventh copper bar (13) and the input of charge relay (2) and the third copper bar (13) fixed connection, the other ends of the fifth copper bar (7) and the sixth copper bar (8) are propped against the upper end face of the lower shell (9).

4. A universal high voltage breaking module according to claim 3, characterized in that: the part group further comprises a plurality of wire harnesses (18), a control interface (5) and a power interface (6), wherein the seventh copper bar (13) is respectively communicated with one end of the pre-charging resistor (19) and the power interface (6) through the corresponding wire harnesses (18), the other end of the pre-charging resistor (19) is communicated with the input end of the pre-charging relay (21) through the corresponding wire harnesses (18), the output end of the pre-charging relay (21) is communicated with the third copper bar (3) through the corresponding wire harnesses (18), the fourth copper bar (4) is communicated with one end of the heating resistor (22) through the corresponding wire harnesses (18), the other end of the heating resistor (22) is communicated with the input end of the heating relay (17) through the corresponding wire harnesses (18), and the power interface (6) is communicated with the input positive end of the DCDC power supply (20).

5. A universal high voltage breaking module according to claim 4, characterized in that: the universal high-voltage breaking module further comprises an upper cover (10), the upper cover (10) is provided with a first notch (23), a second notch (24), a third notch (25) and a fourth notch (26), the upper cover (10) is detachably connected with the lower shell (9) and is located above the lower shell (9), the first copper bar (1) is attached to the first notch (23), the second copper bar (2) is attached to the second notch (24), the third copper bar (3) is attached to the third notch (25), and the fourth copper bar (4) is attached to the fourth notch (26).