CN217334466U - High-voltage distribution box and battery device - Google Patents

Abstract

The utility model discloses a high voltage distribution box and battery device through set up first separator between two links that set up and belong to same electrically conductive row in the next-door neighbour, can increase the distance between the link, is favorable to increasing creepage distance, realizes the electrical isolation of link to can improve high voltage distribution box's security and reliability, avoid because of the next-door neighbour set up and belong to the relatively poor dangerous emergence that leads to of isolation between two links of same electrically conductive row.

Description

High-voltage distribution box and battery device

Technical Field

The utility model relates to a battery technology field indicates high voltage distribution box and battery device especially.

Background

The high-voltage distribution box of the new energy vehicle, called BDU (Battery Disconnect Unit for short), is a high-voltage heavy-current distribution unit in a high-voltage system of the new energy vehicle, electrically connects high-voltage components through a copper bar and a wire harness, provides functions of charge and discharge control, high-voltage component power-on control, circuit overload short circuit protection, high-voltage sampling, low-voltage control and the like for the new energy vehicle, and protects and monitors the operation of the high-voltage system.

Therefore, how to improve the safety of the BDU is a technical problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a high voltage distribution box and battery device for improve BDU's security.

In a first aspect, an embodiment of the present invention provides a high voltage distribution box, including: the device comprises a shell, a separator and at least one conductive bar, wherein the separator and the at least one conductive bar are positioned in the shell;

the conducting bar is provided with connecting ends, the isolating piece comprises a first isolating piece, and the first isolating piece is located between two connecting ends which are arranged in a close proximity mode and belong to the same conducting bar.

In a second aspect, an embodiment of the present invention provides a battery device, including: if the embodiment of the utility model provides an above-mentioned high voltage distribution box.

The utility model discloses beneficial effect as follows:

the embodiment of the utility model provides a high voltage distribution box and battery device through set up first separator between two links that set up and belong to same electrically conductive row in the next-door neighbour, can increase the distance between the link, is favorable to increasing creepage distance, realizes the electrical isolation of link to can improve high voltage distribution box's security and reliability, avoid because of the next-door neighbour set up and belong to the dangerous emergence that the isolation between two links of same electrically conductive row is relatively poor and lead to.

Drawings

Fig. 1 is a schematic structural diagram of a high voltage distribution box provided in an embodiment of the present invention;

FIG. 2 is a sectional view taken along line X1-X2 in FIG. 1;

FIG. 3 is another cross-sectional view taken along the line X1-X2 in FIG. 1;

FIG. 4 is a further sectional view taken along the line X1-X2 in FIG. 1;

FIG. 5 is a sectional view taken along line X3-X4 in FIG. 1;

fig. 6 is a schematic illustration of an orthographic shape of a spacer provided in an embodiment of the invention;

fig. 7 is a schematic perspective view of a high voltage distribution box according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of electric devices in a high-voltage distribution box provided in an embodiment of the present invention;

fig. 9 is a schematic view of a conductive bar and a conductive wire bundle provided in an embodiment of the present invention;

fig. 10 is a schematic diagram of a connection mode of electric devices in a high voltage distribution box provided in an embodiment of the present invention;

fig. 11 is a schematic structural diagram of a battery device according to an embodiment of the present invention.

10-housing, 11-upper housing, 12-lower housing, 12 a-body, 12 b-support platform, 12 c-receiving chamber, 20-spacer, 21-first spacer, 22-second spacer, 23-third spacer, 21 a-first subsection, 21 b-second subsection, 30-conducting bar, 31-connecting terminal, 40-electric device, 41-shunt, 42-main positive relay, 43-pre-charge resistor, 44-hall sensor, 45-main fuse, 46-main negative relay, 47-pre-charge relay, 48-heating fuse, 49-compressor fuse, 50, s1, s2, s 3-conducting wire bundle, 61-high voltage collecting connector, 62-low voltage communication connector, k 0-through hole, Q1-upper space, Q2-lower space, n 1-battery module, n 2-positive electrode front transmission end, n 3-positive electrode rear transmission end, n 4-negative electrode front transmission end, n 5-negative electrode rear transmission end, n 6-first positive electrode transmission end, n 7-second positive electrode transmission end, n 8-first negative electrode transmission end, n 9-second negative electrode transmission end, n 10-transmission end connected with positive electrode of battery module n1, n 11-transmission end connected with negative electrode of battery module n 1.

Detailed Description

The following describes in detail a specific embodiment of a high voltage distribution box and a battery device according to an embodiment of the present invention with reference to the accompanying drawings. It should be noted that the described embodiments are only some embodiments of the present invention, and 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.

An embodiment of the utility model provides a high voltage distribution box, as shown in fig. 1, can include: a housing 10, and a separator 20 and at least one conductive bar 30 located within the housing 10;

the conductive bar 30 has connection ends 31, the separator 20 includes a first separator 21, and the first separator 21 is located between two connection ends 31 that are adjacently disposed and belong to the same conductive bar 30.

Although two conductive bars 30 are shown in fig. 1, this does not mean that two conductive bars 30 are provided in the high voltage distribution box in total, and here, only two conductive bars 30 are taken as an example for illustration, and the number of conductive bars 30 provided in the high voltage distribution box may be set according to actual needs, and is not limited herein.

And, referring to fig. 1, for any conductive bar 30, there are at least two connection ends 31, and as shown in fig. 1, the left conductive bar 30 has two connection ends 31, and each connection end 31 is provided with a through hole k0, when the conductive bar 30 is connected to other structures (not shown in the figure) and the other structures are also provided with corresponding through holes, a fastening member (for example, but not limited to, including a bolt, a screw or a stud) can sequentially pass through the through hole k0 of the connection end 31 and the through holes of the other structures, so as to realize the screwing of the conductive bar 30 to the other structures;

for the right-hand conductor bar 30 in fig. 1, there are three connection terminals 31, and a through hole k0 is also provided at each connection terminal 31, and the function of the through hole k0 is the same as that of the through hole in the left-hand conductor bar 30, and will not be described in detail here.

Furthermore, in connection with the illustration of fig. 1, the close proximity arrangement can be understood as:

taking the right-hand conductor bar 30 shown in fig. 1 as an example, the conductor bar 30 has three connection terminals 31, wherein the two connection terminals 31 on the left-hand side are spaced apart by a small distance and are arranged next to each other, and only the first separator 21 is arranged in the middle, and no other electrical device is arranged; the distance between the middle connecting end 31 and the right connecting end 31 is larger, and the two connecting ends are not arranged next to each other, and other devices 70 (which may be specifically high-voltage output ports) are arranged between the middle connecting end 31 and the right connecting end 31;

therefore, when the distance between the two connection terminals 31 is small and no device is disposed between the two connection terminals 31, it can be considered that the two connection terminals are disposed in close proximity.

So, through setting up first separator between two links that set up and belong to same electrically conductive row in the next-door neighbour, can increase the distance between the link, be favorable to increasing creepage distance, realize the electrical isolation of link to can improve the security and the reliability of high voltage distribution box, avoid because of the next-door neighbour set up and belong to the dangerous emergence that the isolation between two links of same electrically conductive row is relatively poor and lead to.

Wherein, creepage distance can be understood as: a shortest path between the two conductive components measured along the insulating surface; thus, by providing the length of the spacer in the direction of F2 in fig. 1, and/or providing the shape of the spacer, the shortest path of the insulating surface between the adjacent two connection terminals can be adjusted, thereby achieving an increase in the creepage distance.

In some embodiments, the material for forming the conductive bar may be selected according to actual needs, for example, but not limited to, copper metal, aluminum metal, and other metals.

In some embodiments, the material of the spacer may be selected according to actual needs, and is not limited herein.

The embodiment of the present invention provides an embodiment, the setting of the concrete position of the separator can include the following setting modes:

mode 1:

in some embodiments, as shown in fig. 2 and 3, the housing comprises: an upper case 11 and a lower case 12;

the spacer (for example, the first spacer 21) is disposed on a side of the lower case 12 facing the upper case 11 (as shown in fig. 2), or the spacer (for example, the first spacer 21) is disposed on a side of the upper case 11 facing the lower case 12 (as shown in fig. 3).

For example, taking the first spacer 21 as an example, as shown in fig. 2, a side surface (i.e., an upper surface shown in the drawing) of the lower case 12 facing the upper case 11 is provided with the first spacer 21; also, a certain gap h0 (shown in fig. 2) may exist between a side surface of the first partition 21 facing the upper case 11 (i.e., the upper surface of the first partition 21 shown in the figure) and the upper case 11; of course, there may be no gap between the side surface of the first isolation member 21 facing the upper housing 11 and the upper housing 11, that is, the side surface of the first isolation member 21 facing the upper housing 11 is directly contacted with the side surface of the upper housing 11 facing the lower housing 12 (that is, the lower surface of the upper housing 11 shown in the figure) (not shown).

For another example, taking the first spacer 21 as an example, as shown in fig. 3, a side surface of the upper housing 11 facing the lower housing 12 (i.e., a lower surface of the upper housing 11 shown in the figure) is provided with the first spacer 21; likewise, a certain gap (not shown) may exist between a side surface of the first separator 21 facing the lower case 12 (i.e., the lower surface of the first separator 21 shown in the figure) and the lower case 12; of course, there may also be no gap between the surface of the first spacer 21 facing the lower shell 12 and the lower shell 12, i.e. the surface of the first spacer 21 facing the lower shell 12 is in direct contact with the surface of the lower shell 12 facing the upper shell 11 (as shown in the dashed circle in fig. 3).

No matter first isolator is located the casing or is located casing down, as long as can keep apart adjacent link through first isolator, improve high voltage distribution box's security and reliability can.

In some embodiments, taking the first isolation member as an example, when the first isolation member is located in the lower housing, the first isolation member may be integrally formed with the lower housing to increase the stability of the fixation of the first isolation member and the lower housing, and at the same time, the first isolation member and the lower housing may be manufactured together to reduce the fixation process of the first isolation member and the lower housing and simplify the process steps;

or, when the first isolating piece is located on the upper shell, the first isolating piece and the upper shell can be arranged in an integrated forming mode, so that the stability of fixing the first isolating piece and the upper shell is improved, meanwhile, the first isolating piece and the upper shell can be manufactured together, the fixing process of the first isolating piece and the upper shell is reduced, and the process steps are simplified.

Mode 2:

in some embodiments, as shown in fig. 4, the housing comprises: an upper case 11 and a lower case 12;

the spacer (taking the first spacer 21 as an example) includes: and a first section 21a and a second section 21b provided along the arrangement direction of the upper case 11 and the lower case 12, the first section 21a being located on a side of the lower case 12 facing the upper case 11, and the second section 21b being located on a side of the upper case 11 facing the lower case 12.

As shown in fig. 4, taking the first partition 21 as an example, the first subsection 21a is located on a side surface of the lower casing 12 facing the upper casing 11, the second subsection 21b is located on a side surface of the upper casing 11 facing the lower casing 12, and the first subsection 21a and the second subsection 21b are correspondingly arranged, so that when the upper casing 11 and the lower casing 12 are installed, the first subsection 21a and the second subsection 21b can be butted to form a complete partition (the first partition 21 shown in the figure) to separate two adjacent connecting ends 31.

In conjunction with fig. 4, the height of the first and second sections 21a and 21b can be understood as: the length of the first and second sections 21a, 21b along the direction F1; the height of the first section 21a and the height of the second section 21b are not limited to those shown in the drawings, and the height of the first section 21a and the height of the second section 21b may be set as needed, and are not limited thereto.

That is, in this mode 2, the separator is divided into two parts, one of which is a first part and is located on the surface of the lower casing, and the other of which is a second part and is located on the surface of the upper casing, so that when the upper casing and the lower casing are butted, the first part and the second part can be butted in synchronization, thereby forming a complete separator.

Also, when the first and second sections are mated, the first and second sections may be in direct contact such that there is no gap between the first and second sections (as shown within the dashed circle in fig. 4); alternatively, the first and second sections are not in direct contact, such that a gap (not shown) exists between the first and second sections.

It should be noted that, mode 1 and mode 2 are only described by taking the first spacer as an example, and when the spacer further includes the second spacer and the third spacer mentioned in the following, the arrangement of the second spacer and the third spacer is the same as that of the first spacer, and detailed description thereof is omitted.

In summary, when the spacer is arranged, the above mode 1 or mode 2 can be selected for arrangement according to actual needs, so as to meet the needs of different application scenarios and improve the flexibility of design.

And, no matter the spacer setting is on the surface of casing under and/or at last casing, through the setting of spacer, not only can realize carrying out electrical isolation to two adjacent links, can also improve the mechanical strength of casing, avoid causing the influence to the device in the high-voltage distribution box to increase the reliability of high-voltage distribution box.

In some embodiments, as shown in fig. 2, the height h1 of the spacer (exemplified by the first spacer 21) is greater than or equal to the height h2 of the connecting end 31.

Fig. 2 shows only the case where the height h1 of the spacer (taking the first spacer 21 as an example) is greater than the height h2 of the connection end 31.

To explain this point, as shown in fig. 2, the height of the spacer (taking the first spacer 21 as an example) means: the length of the separator (exemplified by the first separator 21) in the direction along F1; the height of the connecting end 31 refers to: the length of the connecting end 31 in the direction along F1.

Therefore, when the height of the isolating piece is set to be larger than or equal to the height of the connecting end, the two adjacent connecting ends can be effectively electrically isolated (especially when the height of the isolating piece is larger than the height of the connecting end), meanwhile, the connecting end can also be effectively fixed, the connecting end is prevented from rotating in the using process of a high-voltage distribution box and the installation process of the high-voltage distribution box, and then the short circuit of electric equipment connected with the two connecting ends when the two connecting ends are in contact is avoided, so that the safety of the electric equipment is improved.

In some embodiments, as shown in fig. 1, the separating member 20 further comprises a second separating member 22, and the second separating member 22 is located between two connecting ends 31 which are adjacently disposed and belong to different conductive bars 30.

Taking fig. 1 as an example, if the right connection end 31 in the left conductive bar 30 is denoted as connection end 1, the leftmost connection end 31 in the right conductive bar 30 is denoted as connection end 2, the connection ends 1 and 2 are disposed next to each other, the connection ends 1 and 2 belong to different conductive bars 30, and a second spacer 22 is disposed between the connection ends 1 and 2.

So, can be so that belong to different electrically conductive row and also can be provided with the second separator between two links of next-door neighbour setting, can increase the distance between the link, be favorable to increasing creepage distance, realize the electrical isolation of link to can improve high voltage distribution box's security and reliability.

In some embodiments, as shown in fig. 5, the housing comprises: a body 12a and a support platform 12b, the support platform 12b being located above the body 12 a;

the connecting end 31 and the spacer 20 are both located on the support platform 12 b;

the spacer 20 further comprises a third spacer 23, the third spacer 23 being located at an edge of the support platform 12 b.

That is, as shown in fig. 5, the first and second spacers 21 and 22 may be located at non-edge positions of the support platform 12b, and the third spacer 23 may be located at edge positions of the support platform 12 b; through the arrangement of the position of the isolating piece, the electric isolation between the structures can be realized.

So, when being provided with other structures near supporting platform, through setting up the third isolator at the edge, can carry out electrical isolation to other structures and link, avoid the influence of link to other structures to can improve high voltage distribution box's reliability.

And, when setting up the link on supporting platform, when needing link and external equipment to be connected, can conveniently realize the electricity of link and external equipment and be connected, increase the convenience and the maneuverability of operation.

In addition, as more structures are arranged in the high-voltage distribution box, such as but not limited to the conducting bars and the output ports, and some conducting bars and some output ports may overlap in the height direction of the high-voltage distribution box, the supporting platform is arranged, so that the supporting of the conducting bars is facilitated, the arrangement of other conducting bars and/or output ports is facilitated, and the effective utilization of space is realized.

For example, as shown in fig. 7, when n6 represents a first positive transmission terminal connected to a positive electrode of a first device (for example, but not limited to, a thermistor), and n7 represents a second positive transmission terminal connected to a positive electrode of a second device (for example, but not limited to, a compressor), the first positive transmission terminal n6 and the second positive transmission terminal n7 may pass through a space formed under the conductive bar marked with 30, so as to electrically connect the first device and the second device.

In some embodiments, as shown in fig. 5, the housing includes an upper housing (not shown) and a lower housing 12, the supporting platform 12b is located on the lower housing 12, and the first partition 21, the second partition 22, and the third partition 23 are integrally formed with the supporting platform 12 b.

In fig. 5, the supporting platform 12b and the spacer 20 are filled with different patterns, but the supporting platform 12b and the spacer 20 are clearly distinguished; the first, second, and third spacers 21, 22, 23 are all integrally formed with the support platform 12b, and it can be understood that: when the supporting platform 12b is manufactured, the first spacer 21, the second spacer 22 and the third spacer 23 may be manufactured at the same time, and these structures are not manufactured separately and then spliced together.

Therefore, the stability of the fixation of the isolation piece and the lower shell can be improved, meanwhile, the isolation piece and the lower shell can be manufactured together, the fixation process of the isolation piece and the lower shell is reduced, the process steps are simplified, and the manufacturing cost is reduced.

Of course, in some embodiments, the spacers and the support platforms may also be fabricated separately and then spliced together.

Therefore, the manufacturing difficulty of the lower shell can be reduced, the manufacturing accuracy of each part is improved, the manufacturing yield of products is improved, and the problem that the yield of the products is low due to the fact that the structure is too complex is avoided.

In some embodiments, when using the high voltage distribution box to the battery package, the battery package can also include battery module or group battery, take the battery module as an example, the battery module is assembled a plurality of (also two or more) battery cells together, and the structure of every battery cell generally is the cuboid, make the battery module generally be a cuboid structure, and then when assembling the battery module to the battery package, remaining space is probably also the cuboid space, set up the high voltage distribution box into the structure of cuboid structure or similar cuboid this moment, can make full use of the space in the battery package, optimize the overall arrangement of inner structure, improve space utilization.

Of course, in practical cases, the high-voltage distribution box is not limited to a rectangular parallelepiped structure or a structure similar to a rectangular parallelepiped, and may be disposed according to a spatial layout in the battery pack, and is not limited herein.

Further, in some embodiments, as shown in fig. 5, the first partition 21, the second partition 22, the third partition 23 and the connection terminal 31 are arranged along the length direction of the high voltage distribution box (as shown in the direction F2).

That is, as shown in connection with fig. 5, when the support platform 12b has four edges, the third partition 23 is provided only at the edge disposed in the direction F2.

So, can the ascending space of make full use of length direction among the high voltage distribution box, especially when the high voltage distribution box is cuboid or similar cuboid's structure, the ascending space of length direction is more, so set up can make full use of length space, reduces the occupation of the ascending space of width direction simultaneously to be favorable to realizing the compact design of high voltage distribution box.

In some embodiments, as shown in fig. 6, the orthographic shape of the third spacers (as shown in the structures within dashed boxes a1 and a2 in fig. 6) is a straight line on the surface of the support platform (i.e., in the direction perpendicular to the page).

So, through the third isolator of a style of calligraphy, can keep apart other structures outside link and the supporting platform in the supporting platform, avoid other structures to cause the influence to the link. And the manufacturing difficulty of the third isolating piece in the shape of a straight line is smaller, so that the manufacturing difficulty of the high-voltage distribution box can be reduced, and the manufacturing cost is reduced.

Simultaneously, can also make the relative both sides of link (also be shown in fig. 6 left side and right side) all be provided with the third separator, so, can fully guarantee the fixed stability of link, avoid the link to take place to remove and rotate.

In some embodiments, as shown in fig. 6, the orthographic shape of the first spacers (such as the structure within the dashed box a4 in fig. 6) and/or the second spacers (such as the structure within the dashed box a3 in fig. 6) on the surface of the support platform (i.e. in the direction perpendicular to the plane of the paper) is a bent shape, and the bent shape includes: wavy, n-shaped or E-shaped.

Wherein, three connection ends 31 are shown in fig. 6, if the leftmost connection end 31 is marked as connection end 1, the middle connection end 31 is marked as connection end 2, the rightmost connection end 31 is marked as connection end 3, and the connection ends 2 and 3 belong to the same conductive bar, when the connection ends 1 and 2 belong to different conductive bars, the orthographic projection shape of the second spacer between the connection ends 1 and 2 can be but is not limited to be set to n-shape or E-shape, and the orthographic projection shape of the first spacer between the connection ends 2 and 3 can be but is not limited to be set to wave-shape.

So set up, have the following advantage:

when the orthographic projection shape of the first isolating piece is set to be wave-shaped (as shown in a dotted line frame a 4), the shortest distance measured along the surface of the first isolating piece between the two connecting ends can be effectively increased (as h3 in fig. 6), the creepage distance can be effectively increased (and when the orthographic projection shape is n-shaped, the shortest distance measured along the surface of the second isolating piece between the two connecting ends is h4 shown in fig. 6, and h3 is greater than h4), the electrical isolation of the connecting ends on two sides (namely, on the left side and the right side shown in the drawing) of the first isolating piece can be effectively improved, and the safety and the reliability of the high-voltage distribution box can be effectively improved.

It should be emphasized that when the connection end 2 and the connection end 3 belong to the same conductive bar, it means that the connection end 2 and the connection end 3 have the same potential, i.e. the connection end 2 and the connection end 3 are equipotential; when the connecting end 2 and the connecting end 3 are connected with different external equipment, the same potential can be provided for two different external settings; if suppose that the potential of link 2 department is unusual when being connected between link 2 and the external equipment and leading to the link 2 to appear unusually, through the setting of first isolator, can avoid link 2 to link 3's potential and to link 3 and external equipment's connection cause harmful effects, especially the first isolator of wave type, can effectively increase creepage distance, increase electrical isolation's effect to can avoid appearing above-mentioned problem, improve high voltage distribution box's stability and reliability.

In addition, the manufacturing cost of the wave-shaped first isolating piece is higher than that of the n-shaped or E-shaped second isolating piece, so that the orthographic projection shape of the second isolating piece is set to be n-shaped, the creepage distance is increased to realize electrical isolation, meanwhile, the manufacturing difficulty can be favorably reduced, and the manufacturing cost is further reduced.

Of course, the arrangement of the orthographic projection shape of the first and second spacers is not limited to the wave shape, the n shape, or the E shape mentioned above, and may be other shapes (for example, but not limited to, a V shape, etc.) capable of increasing the creepage distance, and is not limited herein.

In some embodiments, as shown in fig. 7, a high voltage distribution box comprises: an electric device 40;

a receiving cavity 12c is provided in the lower case 12, and the electric device 40 may be located in the receiving cavity 12 c.

As shown in fig. 8, the electric device 40 may include, but is not limited to: a main positive relay 42, a main negative relay 46, a pre-charge relay 47, a pre-charge resistor 43, a hall sensor 44, a shunt 41, a main fuse 45, a heating fuse 48, and a compressor fuse 49.

To illustrate, where the housing includes a body and a support platform, the receiving cavity may be located within the body.

At this time, a plurality of accommodating cavities may be provided in the lower case, and the number of the accommodating cavities may be determined according to the number of the electrical devices;

for example, if one accommodating chamber accommodates one electric device, the number of the accommodating chambers may be equal to the number of the electric devices;

alternatively, if there is one accommodation chamber for placing two or more electric devices, the number of the accommodation chambers may be smaller than the number of the electric devices.

So, when holding the electrical part through holding the chamber, can increase the stability that the electrical part set up, can also simplify fixed mode and the fixed technology of electrical part simultaneously to can improve the assembly efficiency and the assembly quality of high voltage distribution box.

In some embodiments, as shown in fig. 7, electrical connections between electrical devices may be made through the conductive bars 30 and the conductive bundles 50.

Because the space that the conductor pencil took is less, the design is more nimble, and the space that the conductor bar took is bigger than the conductor pencil, and the design flexibility that the conductor bar was inferior to the conductor pencil, but the connection of conductor bar is simpler, and the connection effect is better, so through the electric connection of conductor bar and conductor pencil each electrical part, can realize the rational utilization of space, optimize the structural layout in the high voltage distribution box, avoid the space waste to can be favorable to realizing the compact design of high voltage distribution box.

Of course, in some embodiments, the electric devices may also be electrically connected only through the conductive bar, or only through the conductive wire bundle, and may be specifically configured according to actual needs, and are not limited herein.

In some embodiments, as shown in fig. 9, includes: an upper space Q1 and a lower space Q2 provided along a height direction of the high voltage distribution box, the conductive bar 30 being located in the upper space Q1;

further comprising: a bundle of electrically conductive wires 50, at least a portion of the bundle of electrically conductive wires 50 being located in the underlying space Q2.

In fig. 9, in order to clearly show the upper space and the lower space, the housing is not shown, and only the electric devices, the busbar, and the conductive wire harness are shown; as can be seen from fig. 9: the conductive harness labeled s1 is located in the lower level space Q2, the portion of the conductive harness labeled s2 is located in the lower level space Q2, and the rest is located in the lower level space Q1; of course, there is also a conductive wiring harness labeled s3 located in the upper level space Q1.

Moreover, the external shapes of the electric devices in the high-voltage distribution box are generally regular, the conductive bar is generally small in height, large in length and has a sheet-shaped conductive structure with a certain width, and the connecting port of the electric devices is generally positioned at the top (namely, one side facing the upper shell), so that when the conductive bar is arranged in the upper space, the conductive bar can be arranged at the top (namely, one side facing the upper shell) of part of the electric devices, the electric connection between the conductive bar and the electric devices can be conveniently realized, and the connection process is simple and convenient and is easy to operate; meanwhile, the conducting bar is small in height, and even if the conducting bar is located at the top of the electric device, the space occupied by the conducting bar is small, so that the height of the high-voltage distribution box cannot be greatly increased.

Because the flexibility of conducting wire bundle design can set up according to the shape in space, so set up at least part in the conducting wire bundle in lower floor's space, can make full use of lower floor's space, and avoid occupying this upper space that is not very abundant, and then can avoid the harmful effects that cause when the upper space is more crowded.

In some embodiments, as shown in connection with fig. 8, in a high voltage distribution box, comprising: the main positive relay 42, the main negative relay 46, the pre-charge relay 47, the pre-charge resistor 43, the hall sensor 44, the shunt 41, the main fuse 45, the heating fuse 48, and the compressor fuse 49, which may be connected as shown in fig. 10;

the battery module n1, the hall sensor 44, the main fuse 45, the pre-charging relay 47, the pre-charging resistor 43, the positive electrode front transmission end n2, the positive electrode rear transmission end n3, the negative electrode front transmission end n4, the negative electrode rear transmission end n5, the main negative relay 46, and the shunt 41 may form a pre-charging circuit, and the pre-charging circuit has the following functions:

when the front-anode transmission terminal n2, the rear-anode transmission terminal n3, the front-cathode transmission terminal n4 and the rear-cathode transmission terminal n5 are connected to a motor controller (not shown in the figure) and a capacitor (not shown in the figure), before a high voltage is applied to the battery module n1 (i.e., power-up is performed), the voltage at the two ends of the capacitor approaches zero or only has a very low residual voltage, and the power-up moment corresponds to a short circuit of the capacitor, so that a large current can damage devices inside the motor controller, the capacitor needs to be charged first through a pre-charging circuit, and when the voltage at the two ends of the capacitor approaches the voltage of the battery module n1, the pre-charging circuit can be closed to complete the power-up operation.

The functions of the precharge relay 47 include: and controlling the on-off of the pre-charging loop.

The functions of the pre-charge resistor 43 include: the current in the pre-charge loop is adjusted.

In addition, the battery module n1, the hall sensor 44, the main fuse 45, the main positive relay 42, the positive electrode front transmission terminal n2, the positive electrode rear transmission terminal n3, the negative electrode front transmission terminal n4, the negative electrode rear transmission terminal n5, the main negative relay 46, and the shunt 41 may constitute a main circuit, and the main circuit functions as: the charge and discharge of the battery module n1 are achieved.

The main positive relay 42 functions include: and controlling the on-off of the main loop.

The main negative relay 46 functions to include: and controlling the on-off of the main loop.

The functions of the main fuse 45 include: the switch-off is performed when the current in the main circuit exceeds a prescribed value and is maintained for a sufficiently long time to avoid an adverse effect of an excessively high current in the main circuit on the battery module n 1.

The functions of the hall sensor 44 include: for sensing the current carried in the main loop.

The functions of the flow diverter 41 include: the shunt 41 may actually be a resistance of the milliohm order, which generates a voltage drop across it when a dc current flows; the battery management system (not shown) can calculate the current in the high-voltage circuit by detecting the voltage drop value across the shunt 41, and under the condition that the resistance value of the shunt 41 is known, so as to monitor the high-voltage circuit.

Wherein, the high-pressure return circuit can include: a main circuit and a pre-charge circuit, etc.

The functions of the heating fuse 48 may include: when a thermistor (not shown) is disposed between the first positive transmission terminal n6 and the first negative transmission terminal n8, the heating fuse 48 can prevent the high voltage distribution box and the thermistor from being damaged.

The functions of the compressor fuse 49 may include: when a compressor (not shown) is disposed between the second positive transmission terminal n7 and the second negative transmission terminal n9, the compressor fuse 49 can prevent the high voltage distribution box and the compressor from being damaged.

In order to facilitate a clear understanding of the arrangement positions of the transmission ends in the high-voltage distribution box in fig. 10, the transmission ends are correspondingly labeled in fig. 7.

In fig. 7, n10 denotes a transmission terminal connected to the positive electrode of the battery module n1 in fig. 10, and n11 denotes a transmission terminal connected to the negative electrode of the battery module n1 in fig. 10.

Of course, in some embodiments, the electric devices included in the high voltage distribution box are not limited to those shown in fig. 8 and 10, and may also include other electric devices, such as, but not limited to, a heating relay, etc., which may be specifically arranged according to actual needs, and are not limited herein.

In some embodiments, a spacer may be disposed between electrical devices (such as the above mentioned relays and fuses) in the high voltage distribution box, so that on one hand, electrical isolation between the electrical devices may be achieved through the spacer, thereby improving the safety of the high voltage distribution box, and on the other hand, fixation of the electrical devices may be achieved, thereby preventing the devices from moving or rotating during use, and improving the reliability of the high voltage distribution box.

In some embodiments, the high voltage distribution box may include, in addition to the above-mentioned structures, other structures (for example, but not limited to, including the high voltage collecting connector shown at 61 and the low voltage communication connector shown at 62 in fig. 9) for implementing functions of the high voltage distribution box, which may be specifically configured according to actual needs, and is not limited herein.

Based on same utility model design, the embodiment of the utility model provides a battery device, as shown in fig. 11, can include: the embodiment of the present invention provides the above-mentioned high voltage distribution box 100.

In some embodiments, the battery device may be, but is not limited to being, a battery pack.

In some embodiments, when the battery device is a battery pack, the battery pack may further include: the battery management system comprises a box body, a battery module (or a battery pack, the following description is given by taking the battery module as an example) and a battery management system, wherein the battery module (or the battery pack is positioned in the box body);

the high-voltage distribution box is also positioned in the box body;

the battery management system can be respectively and electrically connected with the battery module and the high-voltage distribution box and is used for collecting voltage signals and temperature signals of the battery module, receiving electric energy provided by the high-voltage distribution box and controlling charging and discharging of the battery module.

And, the high voltage distribution box can also be connected with the battery module electricity to in the charge-discharge of realization battery module.

Of course, the battery device may include other structures that can be used to implement the functions of the battery device besides the above structures, and is not limited herein.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (10)

1. A high voltage distribution box, comprising: the device comprises a shell, a separator and at least one conductive bar, wherein the separator and the at least one conductive bar are positioned in the shell;

the conducting bar is provided with connecting ends, the isolating piece comprises a first isolating piece, and the first isolating piece is located between two connecting ends which are arranged in a close proximity mode and belong to the same conducting bar.

2. The high voltage distribution box according to claim 1, wherein said spacer further comprises a second spacer located between two of said connecting ends disposed in close proximity and belonging to different said conductive bars.

3. The high voltage distribution box of claim 1, wherein said housing comprises: the supporting platform is positioned above the body;

the connecting end and the isolating piece are both positioned on the supporting platform;

the spacer further comprises a third spacer located at an edge of the support platform.

4. The high voltage distribution box according to claim 3, wherein an orthographic shape of said third spacer on a surface of said support platform is in the shape of a straight line;

the isolating piece still includes the second isolating piece, the second isolating piece is located the next-door neighbour setting and belongs to different two of conducting bar between the link, on supporting platform's surface, the orthographic projection shape of first isolating piece and/or the second isolating piece is the shape of buckling, the shape of buckling includes: wavy, n-shaped or E-shaped.

5. The high voltage distribution box according to claim 3, wherein said spacer further comprises a second spacer located between two of said connecting ends disposed in close proximity and belonging to different said conductive bars;

the casing includes casing and lower casing, supporting platform is located casing down, first barrier member second barrier member third barrier member all with supporting platform integrated into one piece sets up.

6. The high voltage distribution box of claim 1, wherein said housing comprises: an upper housing and a lower housing;

the isolating piece is arranged on one side, facing the upper shell, of the lower shell, or the isolating piece is arranged on one side, facing the lower shell, of the upper shell.

7. The high voltage distribution box of claim 1, wherein said housing comprises: an upper housing and a lower housing;

the spacer includes: and a first section and a second section provided along an arrangement direction of the upper case and the lower case, the first section being located on a side of the lower case facing the upper case, and the second section being located on a side of the upper case facing the lower case.

8. The high voltage distribution box of claim 1, wherein the height of said spacer is greater than or equal to the height of said connection end.

9. The high voltage distribution box of claim 1, comprising: the high-voltage distribution box comprises an upper layer space and a lower layer space which are arranged along the height direction of the high-voltage distribution box, and the conductive bar is positioned in the upper layer space;

further comprising: a bundle of electrically conductive wires, at least a portion of the bundle of electrically conductive wires being located in the underlying space.

10. A battery device, comprising: a high voltage distribution box according to any of claims 1 to 9.

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