CN218827741U - Battery pack and vehicle - Google Patents

Abstract

The present disclosure relates to a battery pack and a vehicle, the battery pack includes a housing, a battery pack, and a fuse, the housing has an accommodation cavity and a mounting passage penetrating the housing and communicating with the accommodation cavity; the battery pack is arranged in the accommodating cavity and comprises a first battery unit and a second battery unit which are arranged at intervals; the fuse is disposed in the mounting channel and connected in series between the first battery cell and the second battery cell. Through above-mentioned technical scheme, the battery package that this disclosure provided can make full use of casing wall thickness's space, avoids additionally occupying the space in the battery package or outside the battery package after the insurance installation, and the space occupies lowly and the dismouting of being convenient for.

Description

Battery pack and vehicle

Technical Field

The present disclosure relates to the field of battery pack technology, and in particular, to a battery pack and a vehicle.

Background

The battery pack is characterized in that a safety device is arranged outside a tray and comprises a base, a safety piece and a safety box cover, the base is connected to the outer wall surface of the tray, the safety piece is installed on the base, and the safety box cover is buckled on the base and covers the safety piece inside the safety box cover. Due to the arrangement mode, the safety device needs to additionally occupy the space outside the battery pack, and the space utilization rate is low.

SUMMERY OF THE UTILITY MODEL

The purpose of the present disclosure is to provide a battery pack and a vehicle, the battery pack can make full use of the space of the wall thickness of the housing, and avoid additionally occupying the space inside or outside the battery pack after the safety installation, so as to improve the space utilization rate, and at least partially solve the technical problems existing in the related art.

In order to achieve the above object, a first aspect of the present disclosure provides a battery pack including: the mounting structure comprises a shell and a mounting structure, wherein the shell is provided with a containing cavity and a mounting channel which penetrates through the shell and is communicated with the containing cavity; the battery pack is arranged in the accommodating cavity and comprises a first battery unit and a second battery unit which are arranged at intervals; and a fuse disposed in the mounting channel and connected in series between the first battery cell and the second battery cell.

Optionally, the battery pack further includes an insulating plate disposed in the accommodating cavity, the insulating plate partially covers the installation channel and has a first side surface facing the installation channel and a second side surface facing the accommodating cavity, the fuse is connected to the first side surface, and two ends of the fuse are respectively connected to the first battery unit and the second battery unit through electrical connectors penetrating through the insulating plate.

Optionally, an inwardly concave mounting groove is formed in the inner wall surface of the accommodating cavity, the bottom surface of the mounting groove is communicated with the mounting channel, and the insulating plate is at least partially accommodated in the mounting groove.

Optionally, the battery pack further comprises an insulating sleeve disposed around a circumferential inner wall of the mounting channel, and the fuse is located inside the insulating sleeve.

Optionally, one end of the insulating sleeve, which is close to the insulating plate, is provided with a first flanging extending between the insulating plate and the bottom surface of the mounting groove, and a second flanging extending from the first flanging to between the insulating plate and the side wall surface of the mounting groove.

Optionally, an avoiding channel for the electrical connector to pass through is formed between the insulating plate and the mounting channel; or the insulating plate is provided with a through hole for the electric connector to penetrate through.

Optionally, the insulating plate includes a first plate and two second plates arranged in a U shape, the avoidance channel is formed between the first plate and the two second plates, and two ends of the fuse are connected to the two second plates.

Optionally, the electric connector comprises a first copper bar and a second copper bar, one end of the second copper bar is clamped between the first copper bar and the corresponding second plate body through a first fastener, and the other end of the second copper bar penetrates through the avoiding channel and is connected with the first battery unit or the second battery unit.

Optionally, the cover is detachably connected to the outer wall surface of the housing and seals the installation channel.

Optionally, the housing includes an upper cover and a tray connected to each other, the accommodating cavity is enclosed between the upper cover and the tray, the tray has a side plate arranged along a circumferential direction of the accommodating cavity, and the mounting channel is disposed on the side plate.

Optionally, a partition plate is disposed in the accommodating cavity, the first battery unit and the second battery unit are respectively located at two opposite sides of the partition plate, and the mounting channel is disposed in an area of the side plate opposite to one end of the partition plate.

The second aspect of the present disclosure also provides a vehicle including the battery pack as described above.

Through above-mentioned technical scheme, this disclosed battery package promptly, through with insurance series connection between the first battery cell and the second battery cell in the chamber that holds of casing to form the high-pressure return circuit that is the U-shaped jointly, like this when taking place for example under the extreme condition such as high pressure arc of drawing, can realize the initiative disconnection of whole package high-pressure return circuit through breaking off this insurance, thereby avoid whole package high pressure to draw the arc, only damage a insurance and can guarantee the safety and the completeness of whole package battery package, need not to change whole battery package. Simultaneously, locate the casing with the installation passageway that holds the chamber intercommunication with this insurance in, can avoid additionally occupying the space in the battery package or outside the battery package to make full use of casing wall thickness's space, thereby improve space utilization.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

fig. 1 is a schematic structural view of a battery pack provided in an exemplary embodiment of the present disclosure with an upper cover removed;

FIG. 2 is an enlarged partial schematic view of the location A in FIG. 1;

fig. 3 is a partial structural schematic view of a battery pack provided in an exemplary embodiment of the present disclosure;

FIG. 4 is an enlarged partial schematic view of the location B in FIG. 3;

fig. 5 is a schematic structural view of a battery pack provided in an exemplary embodiment of the present disclosure with a fuse located in a mounting channel;

fig. 6 is a schematic structural view of an insulation plate of a battery pack provided in an exemplary embodiment of the present disclosure positioned in a mounting groove;

fig. 7 is a schematic structural view of an insulating sheath of a battery pack provided in an exemplary embodiment of the present disclosure.

Description of the reference numerals

1-a shell; 110-a containment chamber; 111-mounting grooves; 120-installing a channel; 130-a tray; 131-side plates; 1311-outer plates; 1312-an inner plate; 2-a battery pack; 210-a first battery cell; 220-a second battery cell; 3-insurance; 4-sealing the cover; 410-a sealing strip; 420-reinforcing ribs; 5-an insulating plate; 510-a second side; 520-a first plate body; 530-a second plate body; 6-electrical connection; 610-a first copper bar; 611-a third plate body; 612-a fourth plate body; 620-second copper bar; 621-a fifth board body; 622-third flanging; 7-an insulating sleeve; 710-a first cuff; 720-second flanging; 8-avoiding the channel; 9-a separator.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, unless otherwise specified, "inner and outer" refer to inner and outer relative to the contour of the component or structure itself. In addition, it should be noted that terms such as "first", "second", and the like are used for distinguishing one element from another, and have no order or importance. In addition, in the description with reference to the drawings, the same reference numerals in different drawings denote the same elements.

According to a first aspect of the present disclosure, there is provided a battery pack, as shown in fig. 1 to 7, including a case 1, a battery pack 2, and a fuse 3, the case 1 having a housing cavity 110 and a mounting passage 120 penetrating the case 1 and communicating with the housing cavity 110; the battery pack 2 is disposed in the receiving cavity 110 and includes a first battery cell 210 and a second battery cell 220 arranged at intervals; the fuse 3 is disposed in the mounting channel 120 and is connected in series between the first battery cell 210 and the second battery cell 220.

Through above-mentioned technical scheme, this disclosed battery package promptly, through with insurance series connection between first battery cell 210 and the second battery cell 220 in the chamber 110 that holds of casing 1 to jointly form the high-voltage circuit who is the U-shaped, like this when taking place for example under the extreme condition such as high pressure arc discharge, can realize the initiative disconnection of whole package high-voltage circuit through this insurance 3 of disconnection, thereby avoid whole package high pressure to draw the arc, only damage the safety and the completeness that a insurance 3 can guarantee whole package battery package, need not to change whole battery package. Meanwhile, the fuse 3 is arranged in the mounting channel 120 communicated with the accommodating cavity 110 of the shell 1, so that the extra space occupied in a battery pack or outside the battery pack can be avoided, the space of the wall thickness of the shell 1 is fully utilized, and the space utilization rate is improved.

In addition, in some embodiments, referring to fig. 2, the battery pack further includes a cover 4, and the cover 4 is detachably connected to the outer wall surface of the housing 1 and seals the installation channel 120, so that an operator can assemble and disassemble the fuse 3 by assembling and disassembling the cover 4, the damaged fuse 3 can be replaced without assembling and disassembling the entire battery pack, and the safe and stable operation of the fuse 3 in the installation channel 120 can be ensured by the cover 4.

It should be noted that the fuse 3 may be configured as a fast fuse or a relay, for example, so as to realize that the entire high-voltage loop is actively disconnected quickly when an extreme condition such as high-voltage arcing occurs, and the safety is high and stable.

In some embodiments, referring to fig. 2, 5 and 6, the battery pack may further include an insulating plate 5 disposed in the accommodating cavity 110, the insulating plate 5 partially covers the installation channel 120 and has a first side facing the installation channel 120 and a second side 510 facing the accommodating cavity 110, the fuse 3 is connected to the first side and has two ends respectively connected to the first battery unit 210 and the second battery unit 220 through an electrical connector 6 penetrating through the insulating plate 5, so that the fuse 3 can be safely and stably disposed in the installation channel 120 due to good insulating performance of the insulating plate 5, thereby further improving the safety of the entire battery pack.

Further, in some embodiments, as shown in fig. 6, an avoidance channel 8 through which the power supply connection 6 passes may be formed between the insulating plate 5 and the installation channel 120; alternatively, the insulating plate 5 is provided with a through hole (not shown) through which the power supply connector 6 passes, so that the power supply connector 6 passes through the avoiding channel 8 or the through hole and then is connected to the corresponding first battery unit 210 and the second battery unit 220.

Specifically, as shown in fig. 5 and 6, the insulating plate 5 may include a first plate 520 and two second plates 530 arranged in a U shape, and an escape channel 8 is formed between the first plate 520 and the two second plates 530, and two ends of the fuse 3 are connected to the two second plates 530, so that the electrical connectors 6 at two ends of the fuse 3 can be connected to the corresponding first battery unit 210 and the second battery unit 220 through the escape channel 8 on the insulating plate 5, and the structure is simple and the manufacturing is convenient.

In some embodiments, which are not shown in the drawings, the insulating plate 5 may also include a plate body structure, for example, a zigzag shape, so as to form a through hole through which the power supply connector 6 passes, and the present disclosure does not specifically limit such a modification, and it is sufficient to form the bypass passage 8 or the through hole through which the power supply connector 6 passes on the insulating plate 5, and a person skilled in the art may select any known plate body structure according to actual situations.

In addition, in some embodiments, as shown in fig. 2, 5 and 6, an inward concave mounting groove 111 may be provided on an inner wall surface of the accommodating cavity 110, a bottom surface of the mounting groove 111 is communicated with the mounting channel 120, and the insulating plate 5 is at least partially accommodated in the mounting groove 111, so that an occupied space of the insulating plate 5 in the whole battery pack can be further saved, an effective volume in the battery pack can be saved, and meanwhile, an operator can also play a role of guiding through the mounting groove 111 when installing the insulating plate 5, thereby facilitating the dismounting operation of the insulating plate 5.

In some embodiments, the insulating plate 5 may be detachably connected to the mounting groove 111 by a second fastener (not shown in the drawings), specifically, a first through hole is formed in the first plate 520 of the insulating plate 5, a second through hole is formed in the inner wall surface of the mounting groove 111, and the second fastener may be, for example, a bolt, so that the bolt sequentially passes through the first through hole and the second through hole, and the head of the bolt abuts against the outer wall surface of the first plate 520, and one end of the bolt opposite to the head of the bolt passes through the first through hole and then is in threaded connection with the second through hole formed as a threaded hole, thereby fixedly connecting the insulating plate 5 in the mounting groove 111, and the mounting is convenient and reliable. In addition, the specific structural shape and depth of the mounting groove 111 may be adaptively designed according to the specific structure of the first plate body 520 of the insulating plate 5, and the present disclosure is not particularly limited thereto.

In some embodiments, referring to fig. 5 and 7, the battery pack may further include an insulating sleeve 7 disposed around the circumferential inner wall of the mounting channel 120, and the fuse 3 is located inside the insulating sleeve 7, so as to further improve the safety of the fuse 3 located in the mounting channel 120, and also ensure that an operator can safely perform the replacement operation of the fuse 3.

Wherein, the insulating sheath 7 can be configured in any suitable manner, for example, as shown in fig. 5 to 7, one end of the insulating sheath 7 close to the insulating plate 5 is provided with a first flange 710 extending between the insulating plate 5 and the bottom surface of the mounting groove 111, so that when the insulating sheath 7 is disposed in the mounting channel 120, the insulating plate 5 can be pressed against the first flange 710 by the first flange 710 abutting on the bottom surface of the mounting groove 111, and further when the insulating plate 5 is fixedly connected to the mounting groove 111 by the second fastener, the insulating sheath 7 can be stably disposed in the mounting channel, the structure is simple and the installation is convenient. In addition, a second flange 720 is formed between the first flange 710 extending to the side wall surface of the insulating plate 5 and the mounting groove 111, so as to avoid the situation of deflection and the like in the mounting process of the insulating plate 5, and facilitate the mounting operation of an operator.

In some embodiments, referring to fig. 4 to 6, the electrical connector 6 may include a first copper bar 610 and a second copper bar 620, one end of the second copper bar 620 is clamped between the first copper bar 610 and the corresponding second plate 530 through a first fastener, and the other end of the second copper bar 620 penetrates through the avoiding channel 8 and is connected to the first battery unit 210 or the second battery unit 220, so that the fuse 3 can be stably connected between the first battery unit 210 and the second battery unit 220, and the reliability is good and the safety is high.

Specifically, the first copper bar 610 may include a third plate 611 and a fourth plate 612 arranged in an L shape, the third plate 611 is detachably connected to the fuse 3 through a third fastener, the fourth plate 612 is attached to the second copper bar 620 and detachably connected to the second plate 530 of the insulating plate 5 through the first fastener, further, the second copper bar 620 may include a fifth plate 621 in a U shape, one end of the fifth plate 621 is clamped between the first copper bar 610 and the second plate 530, and the other end of the fifth plate passes through the second plate 530 and is formed with a third flange 622 at an end thereof for electrically connecting to the first battery unit 210 or the second battery unit 220, so that the fuse 3 can be stably connected between the first battery unit 210 and the second battery unit 220. The first fastener and the third fastener may be configured as fasteners such as bolts, screws, rivets, etc., and the third plate body 611, the fourth plate body 612, and the fifth plate body 621 are respectively provided with mounting holes for the fasteners to pass through, so as to realize the fixed connection of the corresponding plate bodies, and the structure is simple and the installation is convenient.

The housing 1 may be configured in any suitable manner according to practical application requirements, for example, in some embodiments, as shown in fig. 1 to 4, the housing 1 may include an upper cover (not shown) and a tray 130 connected to each other, the upper cover and the tray 130 enclose a receiving cavity 110 therebetween, the tray 130 has a side plate 131 arranged along a circumferential direction of the receiving cavity 110, and the installation channel 120 is disposed on the side plate 131, so as to save space and facilitate the disassembling and assembling work of an operator. The connection mode between the upper cover and the tray 130 can be adaptively designed according to practical application requirements, and the present disclosure is not limited specifically herein, and the purpose of the present disclosure is to enable the upper cover to be hermetically covered on the tray 130, so as to ensure safe and stable operation of the internal battery pack 2. In addition, fig. 4 exemplarily shows that the side panel 131 includes an outer panel 1311 located at the outer side and an inner panel 1312 located at the inner side, such that the installation channel 120 penetrates the outer panel 1311 and the inner panel 1312 to form a space for accommodating the fuse 3, so as to fully utilize the wall thickness of the side panel 131, i.e., fully utilize the space between the outer panel 1311 and the inner panel 1312, and avoid additionally occupying the space inside the casing 1 or outside the casing 1.

In addition, when the battery pack provided by the present disclosure is applied to the CTB (Cell to Body) technology, the upper cover may be an underbody, that is, the underbody and the upper cover of the battery pack are integrated into one.

In addition, in some embodiments, as shown in fig. 2 and 5, the cover 4 may be detachably connected to the outer wall surface of the outer plate 1311 by, for example, a fourth fastening member and hermetically covers the installation channel 120, and a sealing strip 410 may be further disposed between the cover 4 and the outer plate 1311 to ensure better sealing performance, and a reinforcing rib 420 may be further disposed on the cover 4 to facilitate ensuring better structural strength of the cover 4. Wherein the fourth fastener may be configured as a fastener such as a bolt, a screw, and a rivet to achieve the fastening of the cover 4 to the outer plate 1311, and the disclosure is not particularly limited thereto.

Further, in some embodiments, referring to fig. 1 to 4, a partition 9 is disposed in the accommodating chamber 110, and the first battery unit 210 and the second battery unit 220 are respectively located at two opposite sides of the partition 9, so that the battery units at two sides can be ensured to stably operate by the partition 9, and the safety is higher. And, the installation channel 120 is disposed in the area of the side plate 131 opposite to one of the ends of the partition 9, i.e. at the symmetry line of the first battery unit 210 and the second battery unit 220 as shown in fig. 4, so that the connection copper bars at the two ends of the fuse 3 can be more conveniently connected to the corresponding battery units, and the length of the connection copper bars can be reduced, so as to shorten the wiring distance, thereby simplifying the installation and reducing the space occupied by the wiring.

According to the second aspect of the present disclosure, a vehicle is further provided, where the vehicle includes the above battery pack, so as to fully utilize the space of the wall thickness of the housing 1, and avoid the extra occupation of the space inside or outside the battery pack after the installation of the fuse 3, so as to improve the space utilization rate, and thus the occupation space of the battery pack on the vehicle is smaller. In addition, the vehicle has all the advantages of the battery pack, and the details of the disclosure are omitted.

Based on the above embodiments, the present disclosure exemplarily describes the disassembly and assembly process of the fuse 3 of the battery pack, specifically as follows:

installation process of the fuse 3: firstly, the insulating sleeve 7 is installed in the installation channel 120, the first flange 710 of the insulating sleeve 7 is attached to the bottom surface of the installation groove 111, and then the insulating plate 5 is installed in the installation groove 111 through the second fastening piece connection, so that the first flange 710 of the insulating sleeve 7 is clamped between the insulating plate 5 and the bottom surface of the installation groove 111; the two ends of the fuse 3 are connected to the first copper bar 610 through the third fastener, the first copper bar 610 and the second copper bar 620 are connected to the second plate 530 of the insulating plate 5 through the first fastener, meanwhile, one end of the second copper bar 620 penetrates through the avoiding channel 8 of the insulating plate 5 and is connected to the corresponding first battery unit 210 or second battery unit 220, so that the two ends of the fuse 3 are connected in series between the first battery unit 210 and the second battery unit 220, and finally, the sealing cover 4 is hermetically covered on the mounting channel 120.

The disassembling process of the fuse 3 comprises the following steps: when extreme conditions such as high-pressure arc discharge occur, the internal resistance wire of the fuse 3 is automatically fused, and then the whole package of high-voltage loop is actively disconnected, at the moment, an operator needs to replace the fuse 3, correspondingly, the sealing cover 4 is firstly detached, then the third fasteners at the two ends of the fuse 3 are detached, the fuse 3 can be detached, then the new fuse 3 is installed on the first copper bar 610 and locked on the first copper bar through the third fasteners, and finally the sealing cover 4 is hermetically covered on the installation channel 120 to complete corresponding replacement operation.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims (12)

1. A battery pack, comprising:

the mounting structure comprises a shell and a mounting structure, wherein the shell is provided with a containing cavity and a mounting channel which penetrates through the shell and is communicated with the containing cavity;

the battery pack is arranged in the accommodating cavity and comprises a first battery unit and a second battery unit which are arranged at intervals; and

a fuse disposed in the mounting channel and connected in series between the first battery cell and the second battery cell.

2. The battery pack of claim 1, further comprising an insulating plate disposed in the receiving cavity, the insulating plate partially covering the mounting channel and having a first side facing the mounting channel and a second side facing the receiving cavity, the fuse being connected to the first side and having two ends each connected to the first battery cell and the second battery cell, respectively, by an electrical connector penetrating through the insulating plate.

3. The battery pack according to claim 2, wherein an inwardly concave mounting groove is provided on an inner wall surface of the receiving cavity, a bottom surface of the mounting groove communicates with the mounting passage, and the insulating plate is at least partially received in the mounting groove.

4. A battery pack, as recited in claim 3, further comprising an insulating sleeve disposed around the circumferential inner wall of the mounting channel, the fuse being located inside the insulating sleeve.

5. The battery pack of claim 4, wherein an end of the insulating sleeve adjacent to the insulating plate has a first flange extending between the insulating plate and the bottom surface of the mounting groove, and a second flange extending from the first flange to between the insulating plate and the side wall surface of the mounting groove.

6. The battery pack according to claim 2, wherein an escape passage through which the electrical connector passes is formed between the insulating plate and the mounting passage; alternatively, the first and second electrodes may be,

and the insulating plate is provided with a through hole for the electric connector to penetrate through.

7. The battery pack according to claim 6, wherein the insulating plate includes a first plate and two second plates arranged in a U-shape, and the escape passage is formed between the first plate and the two second plates, and both ends of the fuse are connected to the two second plates.

8. The battery pack of claim 7, wherein the electrical connector comprises a first copper bar and a second copper bar, one end of the second copper bar is clamped between the first copper bar and the corresponding second plate body through a first fastener, and the other end of the second copper bar penetrates through the avoiding channel and is connected with the first battery unit or the second battery unit.

9. The battery pack of claim 1, further comprising a cover removably attached to the outer wall surface of the housing and sealing the mounting channel.

10. The battery pack according to claim 1, wherein the case includes an upper cover and a tray connected to each other, the upper cover and the tray enclosing the accommodating chamber therebetween, the tray having a side plate arranged along a circumferential direction of the accommodating chamber, the mounting passage being provided on the side plate.

11. The battery pack of claim 10, wherein a partition is disposed in the receiving cavity, the first battery cell and the second battery cell are respectively located on opposite sides of the partition, and the mounting channel is disposed in a region of the side plate opposite to one end of the partition.

12. A vehicle characterized by comprising a battery pack according to any one of claims 1-11.

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