CN214478494U - Battery cuts off system block terminal - Google Patents

Abstract

The utility model discloses a distribution box of a battery cut-off system, which comprises a BMS controller, a positive box and a negative box which are horizontally arranged in sequence; the positive pole box includes anodal box body to and transversely be fixed in fuse and the anodal relay of a plurality of in the anodal box body in proper order, a power positive pole interface is connected to fuse one end, and the other end is connected with one of them anodal relay, and the anodal relay of a plurality of all is connected with anodal delivery outlet through an anodal copper bar, and anodal copper bar sets up in anodal relay side, and anodal delivery outlet sets up in the fuse side, and is fixed in the anodal box body. The utility model utilizes the copper bar to replace the wire harness to connect each electrical component, so that the wiring in the whole controller is arranged, and the disconnection or disconnection is prevented; with the horizontal setting of arranging of each electric components and parts word, save vertical space, set up the copper bar structure in the relay side, the vertical space that make full use of saved.

Description

Battery cuts off system block terminal

Technical Field

The utility model relates to a battery cuts off system block terminal field, in particular to battery cuts off system block terminal.

Background

In an electric vehicle, a battery cut-off system controls the power on/off of the entire device. The traditional battery cut-off system control box comprises a main negative circuit, a main positive circuit, a pre-charging circuit and a sampling loop, and a quick-charging module is added in most of the existing electric automobiles, so that the quick-charging circuit is required to be added in the battery cut-off system control box.

In the prior art, in most battery cut-off system control boxes, all components are connected through wiring harnesses, and then the wiring harnesses are converged and connected to an output port for connection. In the battery box, the wire bundles are intensively arranged at the upper part, the side edge and the like in the box. Through this kind of setting, though can make full use of battery case inner space, nevertheless the pencil is too mixed and disorderly, is unfavorable for the maintenance in later stage, and this kind of wiring causes the pencil to break or the condition such as open circuit easily.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the utility model provides a battery cuts off system block terminal, through the mode of arranging that sets up each components and parts, reuse copper bar replaces the pencil to connect, and the position of restraint copper bar improves the utilization ratio of battery cut off system block terminal inner space, satisfies production efficiency, after-sales repair requirement simultaneously under satisfying product function, performance, cost requirement.

The utility model provides a technical scheme that above-mentioned problem adopted does: a battery cut-off system distribution box comprises a BMS controller, a positive pole box and a negative pole box which are transversely arranged in sequence; the positive box comprises a positive box body, a fuse and a plurality of positive relays, wherein the fuse and the plurality of positive relays are sequentially and transversely fixed in the positive box body; the negative pole box includes the negative pole box body to and transversely be fixed in shunt, current sensor and a plurality of negative pole relay in the negative pole box body in proper order, a power negative pole interface is connected to shunt one end, and the other end is connected with one of them negative pole relay, a plurality of the negative pole relay all is connected with the negative pole delivery outlet through a negative pole copper bar, the negative pole copper bar sets up in negative pole relay side, the negative pole delivery outlet sets up in the shunt side to be fixed in the negative pole box body.

Compared with the prior art, the utility model has the advantages of: the copper bars are used for replacing wire harnesses to connect the electric components, so that the internal wiring of the whole controller is arranged, and disconnection or disconnection is prevented; with the horizontal setting of arranging of each electric components and parts word, save vertical space, set up the copper bar structure in the relay side, the vertical space that make full use of saved.

Preferably, the positive relay comprises a quick-charging positive relay and a main positive relay, a first connecting end and a second connecting end are arranged at the upper end of the quick-charging positive relay, a third connecting end and a fourth connecting end are arranged at the upper end of the main positive relay, the first connecting end is connected with a first positive output port through a first positive copper bar, the second connecting end is connected with the third connecting end, the second connecting end is connected with a second positive output port through a second positive copper bar, and the fourth connecting end is connected with one end of the fuse. Like this, set up the link of relay in the upper end, further save vertical space, also make things convenient for the copper bar to draw forth simultaneously.

Preferably, first anodal copper bar sets up in filling positive relay and main positive relay side soon, the anodal copper bar of second sets up in the inboard side of first anodal copper bar, first anodal delivery outlet and the anodal delivery outlet of second all set up in the fuse side. Therefore, the plurality of copper bars are arranged on the side edge of the relay and staggered with each other, so that the space is fully utilized, and the overall structure is compact; fuse structure is less, sets up the delivery outlet at the fuse side, the spatial layout of make full use of fuse next door.

Preferably, a pre-charging resistor and a pre-charging relay are further transversely arranged in the anode box, the pre-charging resistor and the pre-charging relay are both connected with a low-voltage wire harness interface through a wire harness, and the fourth connecting end is connected with the low-voltage wire harness interface. Like this, the volume of pre-charge relay and pre-charge resistance is less relatively, and all has corresponding pencil to carry out external, gathers these pencil to low pressure pencil interface and unify external, can save inside pencil space.

Preferably, the quick charging positive relay is provided with a quick charging positive relay control interface, the quick charging positive relay control interface is arranged on one side of the pre-charging resistor, the main positive relay is provided with a main positive relay control interface, and the main positive relay control interface is arranged between the quick charging positive relay and the main positive relay. Therefore, the control interface of the relay is arranged between the adjacent electric components, the transverse space is fully utilized, and the arrangement of the longitudinal space is reduced.

Preferably, the negative pole relay includes that it is loaded burden relay and main burden relay soon, it is equipped with fifth link and sixth link to fill burden relay upper end soon, main burden relay upper end is equipped with seventh link and eighth link, the fifth link is connected with first negative pole delivery outlet through first negative pole copper bar, sixth link and seventh link are connected, the sixth link passes through the second negative pole copper bar and is connected with second negative pole delivery outlet, shunt one end is passed the current sensor below through the lead wire copper bar and is connected with the eighth link. Therefore, the connecting end of the relay is arranged at the upper end, so that the longitudinal space is further saved, and the copper bar can be conveniently led out; the current sensor is smaller, and the lead copper bar can pass through the middle of the lead copper bar and then be connected with the relay.

Preferably, first negative pole copper bar sets up in filling fast and burden relay and main burden relay side, the second negative pole copper bar sets up in the inboard side of first negative pole copper bar, first negative pole delivery outlet and second negative pole delivery outlet all set up in the shunt side. Therefore, the plurality of copper bars are arranged on the side edge of the relay and staggered with each other, so that the space is fully utilized, and the overall structure is compact; the shunt structure is less, sets up the delivery outlet at the shunt side, the spatial layout of make full use of shunt next door.

Preferably, the lead wire copper bar comprises a first copper bar connecting end, a connecting portion, a bending portion and a second copper bar connecting end, the first copper bar connecting end is connected with one end of the shunt, one end of the connecting portion is connected with the first copper bar connecting end, the other end of the connecting portion penetrates through the current sensor and is connected with the bending portion, the bending portion is connected with the second copper bar connecting end, and the second copper bar connecting end is connected with the eighth connecting end of the main negative relay. Like this, through setting up the portion of bending, when satisfying current sensor to copper bar export distance requirement, also can guarantee that the copper bar can pass current sensor's hole.

Preferably, a support table for fixedly supporting the current divider is arranged on the negative box body, and a current divider connector is arranged at the upper end of the current divider. Like this, the structure of shunt is less, supports the shunt through setting up a brace table with negative pole box body shunt lower extreme, conveniently fixes the shunt, makes the upper end of each electrical components and parts can be on a plane.

Preferably, the positive pole box body is provided with a first opening on one side of the positive pole output port, and the negative pole box body is provided with a second opening on one side of the negative pole output port. Like this, through setting up first opening and second opening, make things convenient for the delivery outlet later stage to pass through other copper bars external.

Drawings

Fig. 1 is a schematic diagram of a distribution box structure of a battery cut-off system of the present invention;

fig. 2 is a schematic view of the internal structure of the positive electrode case of the present invention;

fig. 3 is a schematic view of the structure of the BMS controller and the positive electrode case of the present invention;

fig. 4 is a schematic view of the internal structure of the negative electrode case of the present invention;

fig. 5 is a schematic view of the structure of the current divider interface on the negative electrode cartridge of the present invention;

fig. 6 is a schematic view of the connection structure of the current divider in the negative electrode case of the present invention;

fig. 7 is a schematic view of a second opening structure of the negative electrode case of the present invention;

fig. 8 is a schematic view of the connection structure of the lead frame and the negative relay of the present invention;

fig. 9 is a schematic view of the connection structure of the lead frame and the current sensor of the present invention.

The reference numbers in the figures illustrate: 1. a BMS controller;

2. the high-voltage direct-current power supply comprises a positive pole box, 21, a positive pole box body, 22, a fuse, 221, a power supply positive pole interface, 23, a positive pole relay, 231, a quick-charging positive relay, 2311, a first connecting end, 2312, a second connecting end, 2313, a quick-charging positive relay control interface, 232, a main positive relay, 2321, a third connecting end, 2322, a fourth connecting end, 2323, a main positive relay control interface, 24, a positive pole copper bar, 241, a first positive pole copper bar, 242, a second positive pole copper bar, 25, a positive pole output port, 251, a first positive pole output port, 252, a second positive pole output port, 26, a pre-charging resistor, 27, a pre-charging relay, 28 and a low-voltage wiring harness interface;

3. negative pole box, 31, the negative pole box body, 311, a supporting bench, 312, the second opening, 32, the shunt, 321, the power negative pole interface, 322, the shunt interface, 33, current sensor, 34, the negative pole relay, 341, fill the negative relay soon, 3411, the fifth link, 3412, the sixth link, 342, main negative relay, 3421, the seventh link, 3422, the eighth link, 35, the negative copper bar, 351, first negative copper bar, 352, the second negative copper bar, 36, the negative output port, 361, the first negative output port, 362, the second negative output port, 37, the lead wire copper bar, 371, the first copper bar link, 372, the connecting portion, 373, the portion of bending, 374, the second copper bar link.

Detailed Description

Embodiments of the present invention are further described below with reference to the accompanying drawings.

As shown in fig. 1, the present embodiment relates to a battery cut-off system distribution box including a BMS controller 1, a positive electrode box 2, and a negative electrode box 3, which are sequentially and laterally arranged. The longitudinal space is saved by arranging the transverse straight lines.

As shown in fig. 2 to 3, in the present embodiment, the positive electrode case 2 includes a positive electrode case body 21, and a fuse 22 and a plurality of positive electrode relays 23 which are in turn fixed laterally in the positive electrode case body 21. Through arranging each components and parts of positive pole box 2 inside word is horizontal, saves vertical space, and the vertical space that will save out is used for the copper bar wiring again, makes the inside components and parts of positive pole box and circuit neat compact.

Wherein, a power positive pole interface 221 is connected to fuse 22 one end, and the other end is connected with one of them anodal relay 23, and anodal relay 23 is connected with anodal delivery outlet 25 through a anodal copper bar 24, and anodal copper bar 24 sets up in anodal relay 23 side, and anodal delivery outlet 25 sets up in fuse 22 side to be fixed in anodal box body 21. Through setting up anodal copper 24 at anodal relay 23 side, the space of make full use of side, simultaneously because of fuse 22 is less, anodal delivery outlet 25 sets up in fuse 22 side, also can make full use of the interior space of anodal box body 21, makes whole compact structure.

Specifically, the positive relay 23 includes a quick charge positive relay 231 and a main positive relay 232, the upper end of the quick charge positive relay 231 is provided with a first connection end 2311 and a second connection end 2312, and the upper end of the main positive relay 232 is provided with a third connection end 2321 and a fourth connection end 2322. The first connection end 2311 is connected with the first positive output port 251 through a first positive copper bar 241, the second connection end 2312 is connected with the third connection end 2321, the second connection end 2312 is connected with the second positive output port 252 through a second positive copper bar 242, and the fourth connection end 2322 is connected with one end of the fuse 22. The anode relays 23 are all vertically upward, so that the anode copper bars 24 can be conveniently connected; meanwhile, each anode relay 23 is conveniently connected through the anode copper bar 24, and the space of the wire harness inside the anode box body 21 is saved.

Wherein, first anodal copper bar 241 sets up in filling positive relay 231 and main positive relay 232 side soon, and second anodal copper bar 242 sets up in the inboard side of first anodal copper bar 241, and first anodal delivery outlet 251 and second anodal delivery outlet 252 all set up in fuse 22 side. Through all setting up first anodal copper bar 241 and second anodal copper bar 242 at the side of anodal relay 23, the arrangement of the copper bar of being convenient for, the longitudinal space of make full use of.

The fast charging positive relay 231 is provided with a fast charging positive relay control interface 2313, the fast charging positive relay control interface 2313 is arranged on one side of the pre-charging resistor 26, the main positive relay 232 is provided with a main positive relay control interface 2323, and the main positive relay control interface 2323 is arranged between the fast charging positive relay 231 and the main positive relay 232. Through setting up the control interface of filling positive relay 231 soon and main positive relay 232 between adjacent components and parts, further make full use of space also makes things convenient for the introduction of control interface simultaneously.

As shown in fig. 3, in the present embodiment, a pre-charging resistor 26 and a pre-charging relay 27 are further transversely disposed in the positive electrode box 2, the pre-charging resistor 26 and the pre-charging relay 27 are both connected to a low-voltage harness interface 28 through a harness, and the fourth connection end 2322 is connected to the low-voltage harness interface 28. The pre-charging resistor 26 and the pre-charging relay 27 are relatively small in size and are arranged on one side of the BMS controller 1 with a smaller longitudinal size, so that the transverse space is fully utilized; meanwhile, the part is close to the main positive loop, which is beneficial to reducing the length of the conducting wire of the pre-charging loop, thereby reducing the cost.

As shown in fig. 4-9, the negative electrode box 3 includes a negative electrode box 31, and a current divider 32, a current sensor 33 and a plurality of negative electrode relays 34 that are sequentially and transversely fixed in the negative electrode box 31, wherein one end of the current divider 32 is connected to a negative electrode interface 321, and the other end of the current divider is connected to one of the negative electrode relays 34, the negative electrode relay 34 is connected to a negative electrode output port 36 through a negative electrode copper bar 35, the negative electrode copper bar 35 is disposed on a side of the negative electrode relay 34, and the negative electrode output port 36 is disposed on a side of the current divider 32 and fixed in the negative electrode box 31.

The negative relay 34 comprises a quick charge negative relay 341 and a main negative relay 342, a fifth connection end 3411 and a sixth connection end 3412 are arranged at the upper end of the quick charge negative relay 341, and a seventh connection end 3421 and an eighth connection end 3422 are arranged at the upper end of the main negative relay 342. The fifth connection end 3411 is connected to the first negative output port 361 through the first negative copper bar 351, the sixth connection end 3412 is connected to the seventh connection end 3421, the sixth connection end 3412 is connected to the second negative output port 362 through the second negative copper bar 352, and one end of the shunt 32 passes through the lower portion of the current sensor 33 through the lead copper bar 37 and is connected to the eighth connection end 3422. The negative electrode relays 34 are also of the type which is vertically upward, so that the negative electrode copper bars 35 can be conveniently connected; simultaneously, each cathode relay 34 is conveniently connected through the cathode copper bar 35, and the space of the wire harness inside the cathode box body 31 is saved.

Wherein, first negative pole copper bar 351 sets up in filling fast and burden relay 341 and main burden relay 342 side, and second negative pole copper bar 352 sets up in the inboard side of first negative pole copper bar 351, and first negative pole delivery outlet 361 and second negative pole delivery outlet 362 all set up in shunt 32 side. Through all setting up first negative pole copper bar 351 and second negative pole copper bar 352 at the side of negative pole relay 34, the arrangement of the copper bar of being convenient for, make full use of vertical space.

As shown in fig. 8-9, the lead copper bar 37 includes a first copper bar connection end 371, a connection portion 372, a bending portion 373, and a second copper bar connection end 374, the first copper bar connection end 371 is connected with one end of the shunt 32, one end of the connection portion 372 is connected with the first copper bar connection end 371, the other end passes through the current sensor 33 and is connected with the bending portion 373, the bending portion 373 is connected with the second copper bar connection end 374, and the second copper bar connection end 374 is connected with the eighth connection end 3422 of the main negative relay 342.

The space of the main negative connection output line of the current sensor 33 in the negative electrode box 31 is small, the lead copper bar 37 can be designed in a large bending angle mode, the requirement of the current sensor 33 on the outlet distance of the lead copper bar 37 is met, and meanwhile, the lead copper bar 37 can be ensured to conveniently pass through the hole of the current sensor 33. In this embodiment, the current sensor 33 is a hall current sensor.

As shown in fig. 6, the negative case 31 is provided with a support base 311 for fixedly supporting the shunt 32, and the shunt 32 is provided with a shunt connector 322 at the upper end thereof. The shunt 32 is small in size, and the shunt is supported by arranging a support table at the lower end of the negative box shunt, so that the shunt is convenient to fix, and the upper ends of all the electric components can be on the same plane; while also facilitating the securement of the flow diverter 32.

As shown in fig. 7, positive electrode case 21 has a first opening on the side of positive electrode outlet 25, and negative electrode case 31 has a second opening 312 on the side of negative electrode outlet 36. Through setting up first opening and second opening 312, make things convenient for the delivery outlet later stage to pass through other copper bars externally. The longitudinal sizes of the positive box body 21 and the negative box body 31 are smaller, the lower box body of the box body can be of a semi-open structure, and part of the position of the copper bar is overlapped with the surface of the outer shell and is directly exposed outside the box body so as to adapt to the problem of small longitudinal size.

In the embodiment, the longitudinal size of the cathode box 3 is compressed, the installation space of the power supply connecting wire of the anode box 1 is reserved, and the power supply anode interface of the battery cut-off system is effectively moved to the middle part of the arrangement space from the vicinity of the cathode interface, so that the problem that electric elements cannot be arranged in parallel in the longitudinal space due to small longitudinal space is solved.

The utility model has the advantages that: the copper bars are used for replacing wire harnesses to connect the electric components, so that the internal wiring of the whole controller is arranged, and disconnection or disconnection is prevented; with the horizontal setting of arranging of each electric components and parts word, save vertical space, set up the copper bar structure in the relay side, the vertical space that make full use of saved.

While the foregoing description shows and describes several preferred embodiments of the invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims (10)

1. A battery cuts off system block terminal which characterized in that: the battery pack comprises a BMS controller (1), a positive electrode box (2) and a negative electrode box (3) which are sequentially and transversely arranged;

the positive box (2) comprises a positive box body (21), a fuse (22) and a plurality of positive relays (23), wherein the fuse (22) and the plurality of positive relays (23) are sequentially and transversely fixed in the positive box body (21), one end of the fuse (22) is connected with a power positive interface (221), the other end of the fuse is connected with one of the positive relays (23), the positive relay (23) is connected with a positive output port (25) through a positive copper bar (24), the positive copper bar (24) is arranged on the side edge of the positive relay (23), and the positive output port (25) is arranged on the side edge of the fuse (22) and is fixed in the positive box body (21);

negative pole box (3) include negative pole box body (31) to and transversely be fixed in shunt (32), current sensor (33) and a plurality of negative pole relay (34) in negative pole box body (31) in proper order, a power negative pole interface (321) is connected to shunt (32) one end, and the other end is connected with one of them negative pole relay (34), negative pole relay (34) are connected with negative pole delivery outlet (36) through a negative pole copper bar (35), negative pole copper bar (35) set up in negative pole relay (34) side, negative pole delivery outlet (36) set up in shunt (32) side to be fixed in negative pole box body (31).

2. A battery disconnect system distribution box according to claim 1, wherein: the positive relay (23) comprises a quick charging positive relay (231) and a main positive relay (232), a first connecting end (2311) and a second connecting end (2312) are arranged at the upper end of the quick charging positive relay (231), a third connecting end (2321) and a fourth connecting end (2322) are arranged at the upper end of the main positive relay (232),

the first connecting end (2311) is connected with the first positive output port (251) through a first positive copper bar (241), the second connecting end (2312) is connected with the third connecting end (2321), the second connecting end (2312) is connected with the second positive output port (252) through a second positive copper bar (242), and the fourth connecting end (2322) is connected with one end of the fuse (22).

3. A battery disconnect system distribution box according to claim 2, wherein: first anodal copper bar (241) set up in filling positive relay (231) and main positive relay (232) side soon, second anodal copper bar (242) set up in first anodal copper bar (241) inboard side, first anodal delivery outlet (251) and second anodal delivery outlet (252) all set up in fuse (22) side.

4. A battery disconnect system distribution box according to claim 2, wherein: still transversely be equipped with in anodal box (2) and pre-charge resistance (26) and pre-charge relay (27), pre-charge resistance (26) and pre-charge relay (27) are all connected with a low pressure pencil interface (28) through the pencil, fourth link (2322) are connected with low pressure pencil interface (28).

5. A battery disconnect system distribution box according to claim 4, wherein: the quick charging positive relay (231) is provided with a quick charging positive relay control interface (2313), the quick charging positive relay control interface (2313) is arranged on one side of the pre-charging resistor (26), the main positive relay (232) is provided with a main positive relay control interface (2323), and the main positive relay control interface (2323) is arranged between the quick charging positive relay (231) and the main positive relay (232).

6. A battery disconnect system distribution box according to claim 1, wherein: the negative relay (34) comprises a quick charge negative relay (341) and a main negative relay (342), the upper end of the quick charge negative relay (341) is provided with a fifth connecting end (3411) and a sixth connecting end (3412), the upper end of the main negative relay (342) is provided with a seventh connecting end (3421) and an eighth connecting end (3422),

the fifth connecting end (3411) is connected with the first negative electrode output port (361) through a first negative electrode copper bar (351), the sixth connecting end (3412) is connected with the seventh connecting end (3421), the sixth connecting end (3412) is connected with the second negative electrode output port (362) through a second negative electrode copper bar (352), and one end of the shunt (32) penetrates through the lower portion of the current sensor (33) through a lead copper bar (37) and is connected with the eighth connecting end (3422).

7. A battery disconnect system distribution box according to claim 6, wherein: first negative pole copper bar (351) sets up in quick charge negative relay (341) and main negative relay (342) side, second negative pole copper bar (352) set up in first negative pole copper bar (351) inboard side, first negative pole delivery outlet (361) and second negative pole delivery outlet (362) all set up in shunt (32) side.

8. A battery disconnect system distribution box according to claim 6, wherein: lead wire copper bar (37) including first copper bar link (371), connecting portion (372), portion (373) and second copper bar link (374) of bending, first copper bar link (371) is connected with shunt (32) one end, connecting portion (372) one end is connected with first copper bar link (371), and the other end passes current sensor (33) and is connected with portion (373) of bending, portion (373) of bending is connected with second copper bar link (374), second copper bar link (374) and the eighth link (3422) of main burden relay (342) are connected.

9. A battery disconnect system distribution box according to claim 6, wherein: and a support table (311) for fixedly supporting the current divider (32) is arranged on the negative pole box body (31), and a current divider interface (322) is arranged at the upper end of the current divider (32).

10. A battery disconnect system distribution box according to claim 1, wherein: the positive pole box body (21) is provided with a first opening (211) on one side of a positive pole output port (25), and the negative pole box body (31) is provided with a second opening (312) on one side of a negative pole output port (36).

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