CN205468578U - Battery turn -off module for new energy automobile - Google Patents

Abstract

The utility model provides a battery turn -off module for new energy automobile, including dismantling the last casing of connection, well casing and lower casing in proper order, casing externally mounted has female arranging down, female one end of arranging shen ru arrive the internal portion of inferior valve, and the inferior valve is internal always to be installed positive relay and always bear the relay, the casing top, and internal trickle charge relay, major loop precharge relay, trickle charge return circuit precharge relay, major loop precharging resistor, the trickle charge return circuit precharging resistor of being equipped with of mesochite, the external portion of mesochite is equipped with high -pressure collection subassembly, the internal fuse of installing of epitheca, fuse mounting groove outside is equipped with the detachable protective cover, and external of epitheca is equipped with low pressure control assembly. Adopt the crucial electric elements of the integrated battery of modularized design, have the advantage that integrated nature is high, control efficiency is high and the security performance is good.

Description

Battery breaker module for new energy vehicles

technical field

The utility model mainly relates to the technical field of batteries for new energy vehicles, in particular to a battery circuit breaker module for new energy vehicles.

Background technique

A new energy vehicle is a vehicle that is provided with other forms of power supply devices on the basis of using or directly abandoning a traditional fuel engine as a power supply device. For example: fuel cell vehicles, hybrid vehicles and solar vehicles, etc.

In an electric vehicle or a hybrid vehicle, since it uses electric energy as a power source, the battery module becomes a main part of the vehicle. At present, the power battery system used in electric vehicles or hybrid vehicles has complex circuits, and the traditional solution has a low degree of integration and cannot realize modular design. The layout of electrical components is scattered and occupies a large space. The assembly process is extremely time-consuming and lacks fool-proofing, and the production efficiency is low. , It is difficult to troubleshoot problems in the later stage, inconvenient to overhaul, and the maintenance cost is relatively high. Therefore, it is necessary to improve the electrical wiring system, improve space utilization through modular design, improve production efficiency, and reduce maintenance costs

Utility model content

In order to solve the deficiencies of the current technology, this utility model combines the existing technology and starts from practical application to provide a battery breaker module for new energy vehicles, which adopts modular design to integrate key electrical components of the battery, and has high integration and high control efficiency and good safety performance.

In order to achieve the above object, the technical scheme of the utility model is as follows:

The battery breaker module for new energy vehicles includes a housing, and the housing includes an upper housing, a middle housing and a lower housing that are detachably connected in sequence, and embedded bolts are embedded on the outside of the lower housing, and the embedded bolts are A busbar is installed, one end of the busbar goes deep into the lower casing, and a total positive relay and a total negative relay are installed in the lower casing, and the middle casing is arranged above the lower casing, and the middle casing is provided with a slow charging relay, The main circuit pre-charging relay, the slow charging circuit pre-charging relay, the main circuit pre-charging resistor, the slow charging circuit pre-charging resistor, a high-voltage acquisition component is arranged outside the middle casing, the upper casing is arranged above the middle casing, and the upper casing The body is provided with a fuse installation groove that runs through the upper casing, and a fuse is installed in the fuse installation groove, and a detachable protective cover is provided outside the fuse installation groove, and a low-voltage control component is arranged outside the upper casing. High-voltage acquisition components, low-voltage control components, busbars, total positive relay, total negative relay, slow charging relay, main circuit pre-charging relay, slow charging circuit pre-charging relay, main circuit pre-charging resistor, slow charging circuit pre-charging resistor and fuse The device is electrically connected inside the housing.

One side of the middle housing is provided with a first T-shaped card table and a first opening, the first opening communicates with the inside of the middle housing, the high-voltage collection assembly includes a first sheath and a first terminal, the The first sheath is provided with a first card slot, the first card slot cooperates with the first T-shaped card platform to fix the first sheath on the middle housing, and the first connection terminal is connected to the Inside the middle case.

One side of the upper housing is provided with a second T-shaped card table and a second opening, and the second opening communicates with the inside of the upper housing, and the low-voltage control assembly includes a second sheath and a second electrical terminal. The second sheath is provided with a second card slot, and the second card slot cooperates with the second T-shaped card platform to fix the second sheath on the upper shell, and the second connection terminal is connected through the second opening Inside the top case.

The two ends of the fuse are respectively provided with an L-shaped fuse bracket, the fuse bracket is provided with an installation through hole, and the two ends of the fuse installation groove are provided with threaded holes corresponding to the installation through hole, and the fuse bracket It is fixed on the upper casing by screws passing through the through holes and matching with the threaded holes.

The four corners of the lower part of the lower casing are embedded with I-shaped steel rings, and the upper and lower surfaces of the I-shaped steel rings protrude from the lower casing.

The embedded bolts are lag bolts, and the embedded bolts are integrally injection-molded with the lower shell.

Both the main circuit pre-charging resistor and the slow charging circuit pre-charging resistor are cement resistors.

The first connection terminal on the high voltage collection component is a pre-insulated OT terminal.

The beneficial effects of the utility model:

1. The utility model adopts a modular design method to rationally arrange multiple key electrical components, receive the voltage control signal of the battery management system through the low-voltage connector, and switch on and off each high-voltage circuit circuit inside the battery pack. The plug-in accepts the voltage acquisition signal of the battery management system, and detects the adhesion of each high-voltage circuit circuit inside the battery pack. Its structural design is reasonable, the circuit connection is convenient, and the division between each module is clear, which is convenient for the assembly and maintenance of each module.

2. The high-voltage acquisition component and the low-voltage control component of the utility model are connected to the housing through a buckle structure, which is convenient to install and disassemble, and the connection is reliable, and the high-voltage acquisition component and the low-voltage control component are arranged outside the housing, which is convenient for connection with the battery management system connect.

3. The fuse of the utility model is arranged on the upper part of the housing, and adopts a quick-installation structure. Only need to open the protective cover to realize the rapid installation and replacement of the fuse, improve the working efficiency of the operator, and can integrate fuses of different specifications. The circuit breaker protects the circuit from overload and short circuit.

4. The I-shaped steel ring of the utility model can ensure that the force-bearing surface of the shell is on the surface of the I-shaped steel ring, and the I-shaped steel ring absorbs vibration energy during the vibration process to ensure the reliability of the shell.

5. The lag bolt embedded in the utility model adopts integral injection molding, which has a compact structure and can simplify installation.

6. The pre-charging resistor of the utility model adopts a quick-installation cement resistor, which has a regular shape and is easy to install.

7. The utility model connects the high-voltage circuit through the pre-insulated OT terminal, which is convenient for installation.

Description of drawings

Accompanying drawing 1 is the schematic diagram of explosion structure of the present utility model;

Accompanying drawing 2 is the utility model assembly structure schematic diagram;

Accompanying drawing 3 is the internal circuit diagram of the utility model.

Numbers shown in the attached drawings: 1. Protective cover; 2. Fuse; 3. Fuse bracket; 4. Upper housing; 5. Second T-shaped card platform; 6. Second opening; 8. High voltage acquisition component; 9. Slow charging relay; 10. Middle shell; 11. Total positive relay; 12. Total negative relay; 13. Lower shell; 14. I-shaped steel ring; 15. Embedded bolts; 16. Busbar; 17. Main circuit pre-charging relay; 18. Slow charging circuit pre-charging relay; 19. Main circuit pre-charging resistor; 20. Slow charging circuit pre-charging resistor; 21. Harness assembly; 22. Fuse installation slot; 23. The first T-shaped card table; 24. The first opening.

detailed description

The utility model will be further described in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present utility model and are not intended to limit the scope of the present utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the appended claims of the application.

As shown in Figures 1 and 2, the battery breaker module for new energy vehicles includes a housing, and the housing includes an upper housing 4, a middle housing 10, and a lower housing 13 that are sequentially detachably connected. Embedded bolts 15 are embedded outside the body 13, and a busbar 16 is installed on the embedded bolts 15, and one end of the busbar 16 penetrates into the lower casing 13, and the total positive relay 11 and the total negative relay are installed in the lower casing 13. 12. The middle housing 10 is set above the lower housing 13, and the middle housing 10 is provided with a slow charging relay 9, a main circuit pre-charging relay 17, a slow charging circuit pre-charging relay 18, a main circuit pre-charging resistor 19, a slow charging relay The charging circuit pre-charging resistor 20, the middle housing 10 is provided with a high-voltage acquisition assembly 8, the upper housing 4 is arranged above the middle housing 10, and the upper housing 4 is provided with a fuse installation groove that runs through the upper housing 4 22. A fuse 2 is installed in the fuse installation groove 22, a detachable protective cover 1 is provided outside the fuse installation groove 22, a low-voltage control component 7 is arranged outside the upper housing 4, and the high-voltage collection component 8, Low-voltage control component 7, busbar 16, main positive relay 11, main negative relay 12, slow charging relay 9, main circuit pre-charging relay 17, slow charging circuit pre-charging relay 18, main circuit pre-charging resistor 19, slow charging circuit pre-charging The charging resistor 20 and the fuse 2 are electrically connected inside the casing. The connection circuit diagram is shown in Figure 3. The high-voltage acquisition component 8 is connected to the high-voltage main circuit, the busbar 16 is connected to the power supply and the battery, the low-voltage control component 7 is used to control each relay, and the main circuit pre-charging resistor 19 is connected to the main circuit pre-charging relay. 17, the slow charging circuit pre-charging resistor 20 is connected to the slow charging circuit pre-charging relay 18, the low-voltage control component 7 and the high-voltage acquisition component 8 detect and control each circuit inside the battery pack by receiving signals from the battery management system.

After the upper housing 4, the middle housing 10 and the lower housing 13 of the utility model are installed, the total positive relay 11, the total negative relay 12, the slow charging relay 9, the main circuit pre-charging relay 17, and the slow charging circuit pre-charging relay 18 , the main circuit pre-charging resistor 19, the slow charging circuit pre-charging resistor 20 and the fuse 2 are sealed inside the housing, the low-voltage control component 7 and the high-voltage acquisition component 8 are located outside the housing, one end of the busbar 16 is located inside the housing, and the other One end is located outside the housing. The low-voltage control component 7 and the high-voltage acquisition component 8 are connected to electrical components inside the housing through a wire harness assembly 21 . The electrical components of the utility model are provided with clear layers, reasonable layout, and small occupied space to realize the modular design, and the circuit structure is simple, which is convenient for maintenance and inspection.

One side of the housing 10 of the utility model is provided with a first T-shaped card table 23 and a first opening 24, the first opening 24 communicates with the inside of the housing 10, and the high-voltage acquisition assembly 8 includes a first sheath and a first terminal , the first sheath is provided with a first card slot, the first card slot cooperates with the first T-shaped card platform 23 to fix the first sheath on the middle housing 10, and the first connection terminal is connected to the The inside of the middle housing 10; the side of the upper housing 4 is provided with a second T-shaped card table 5 and a second opening 6, the second opening 6 communicates with the inside of the upper housing 4, and the low-voltage control assembly 17 includes a second sheath and a second Two electrical terminals, the second sheath is provided with a second card slot, the second card slot cooperates with the second T-shaped card table 5 to fix the second sheath on the upper casing 4, and the second connection terminal passes through the second The opening 6 is connected to the inside of the upper case 4 . The low-voltage control component 7 and the high-voltage acquisition component 8 are connected to the housing through a buckle structure, which is convenient and quick to install, and is convenient for later detection and troubleshooting.

The two ends of the fuse 2 of the utility model are respectively provided with an L-shaped fuse bracket 3, the fuse bracket 3 is provided with an installation through hole, and the two ends of the fuse installation groove 22 are provided with threaded holes corresponding to the installation through hole. The bracket 3 is fixed on the upper casing 4 by screws passing through the through holes and matching with the threaded holes. Adopting this structure to install the fuse 2 can realize rapid installation and replacement.

The four corners of the lower housing 13 of the utility model are embedded with I-shaped steel rings 14 , and the upper and lower surfaces of the I-shaped steel rings 14 extend out of the lower housing 13 . When fixing the housing, the mounting bolts are inserted into the I-shaped steel ring 14 to cooperate with the threaded holes at the bottom of the mounting surface. On the surface, during the vibration process, the vibration energy is absorbed by the I-shaped steel ring 14 to ensure the reliability of the circuit breaking module.

The embedded bolts 15 of the utility model are square head bolts, and the embedded bolts 15 and the lower housing 13 are integrally injection-molded to ensure that the bolts are stress points when installing the busbar.

The main circuit pre-charging resistor 19 and the slow-charging circuit pre-charging resistor 20 of the utility model are all cement resistors, which adopt quick installation cement resistors, regular in shape, and easy to install.

The first connection terminal on the high-voltage acquisition assembly 8 of the utility model is a pre-insulated OT terminal, which is convenient for connection and installation of the high-voltage circuit.

Claims (8)

1. new-energy automobile battery turn-off module, it is characterised in that: include that housing, described housing include successively may be used Upper shell (4), middle shell (10) and the lower house (13) that dismounting connects, described lower house (13) is outside It is embedded with stud bolt (15), described stud bolt (15) is provided with busbar (16), described busbar (16) It is internal that one end is deep into lower house (13), is provided with total positive relay (11) and always in lower house (13) Negative relay (12), described middle shell (10) is arranged on lower house (13) top, in middle shell (10) Be provided with trickle charge relay (9), major loop pre-charge-relay (17), trickle charge loop pre-charge-relay (18), Major loop pre-charge resistance (19), trickle charge loop pre-charge resistance (20), middle shell (10) is outside to be provided with High-voltage acquisition assembly (8), described upper shell (4) is arranged on middle shell (10) top, upper shell (4) Inside it is provided with the fuse mounting groove (22) running through upper shell (4), peace in described fuse mounting groove (22) Equipped with fuse (2), fuse mounting groove (22) is outside is provided with dismountable protective cover (1), upper shell (4) the outside low voltage control assembly (7) that is provided with, described high-voltage acquisition assembly (8), low voltage control assembly (7), Busbar (16), total positive relay (11), always to bear relay (12), trickle charge relay (9), major loop pre- Charge relay (17), trickle charge loop pre-charge-relay (18), major loop pre-charge resistance (19), slow Fill loop pre-charge resistance (20) and fuse (2) to electrically connect in enclosure interior.

2. new-energy automobile battery turn-off module as claimed in claim 1, it is characterised in that: described middle shell (10) side is provided with the first T-shaped chuck (23) and the first opening (24), described first opening (24) with Middle shell (10) is internal to be communicated, and described high-voltage acquisition assembly (8) includes the first sheath and the first binding post, Described first sheath is provided with the first draw-in groove, and described first draw-in groove and the first T-shaped chuck (23) coordinate makes the One sheath is fixed on middle shell (10), and described first binding post is connected to by the first opening (24) Middle shell (10) is internal.

3. new-energy automobile battery turn-off module as claimed in claim 2, it is characterised in that: described upper shell (4) side is provided with the second T-shaped chuck (5) and the second opening (6), described second opening (6) and upper casing Body (4) is internal to be communicated, and described low voltage control assembly (17) includes the second sheath and the second electrical terminals, institute Stating the second sheath and be provided with the second draw-in groove, described second draw-in groove and the second T-shaped chuck (5) coordinate makes second to protect Set is fixed on upper shell (4), and described second binding post is connected to upper shell by the second opening (6) (4) internal.

4. new-energy automobile battery turn-off module as claimed in claim 1, it is characterised in that: described fuse (2) being respectively arranged at two ends with a L-type fuse support (3), described fuse support (3) is provided with peace Dress through hole, described fuse mounting groove (22) two ends are provided with the screwed hole corresponding with installing through hole, fuse Support (3) is by being fixed on upper shell (4) through through hole and the screw that coordinates with screwed hole.

5. new-energy automobile battery turn-off module as claimed in claim 1, it is characterised in that: described lower house (13) be embedded with I-shaped steel ring (14) at the corner of bottom, the upper surface of described I-shaped steel ring (14) and under Lower house (13) is all stretched out on surface.

6. new-energy automobile battery turn-off module as claimed in claim 1, it is characterised in that: described embedding spiral shell Bolt (15) is square head bolt, stud bolt (15) and lower house (13) integral molded plastic molding.

7. new-energy automobile battery turn-off module as claimed in claim 1, it is characterised in that: described major loop Pre-charge resistance (19) and trickle charge loop pre-charge resistance (20) are cement resistor.

8. new-energy automobile battery turn-off module as claimed in claim 1, it is characterised in that: high-voltage acquisition group The first binding post on part (8) is pre insulated OT terminal.