CN112531428A

CN112531428A - Battery package coupling assembling, battery package module and battery package

Info

Publication number: CN112531428A
Application number: CN201910871071.1A
Authority: CN
Inventors: 陈斌; 邱福生
Original assignee: Aiways Automobile Shanghai Co Ltd
Current assignee: Hydrogen Chi Power Technology (Shanxi) Co.,Ltd.
Priority date: 2019-09-16
Filing date: 2019-09-16
Publication date: 2021-03-19

Abstract

The invention provides a battery pack connecting assembly, a battery pack module and a battery pack, wherein the battery pack connecting assembly comprises: at least one first connector, the first connector includes: the two end openings of the second insulating cavity are respectively provided with a plurality of first wiring terminals; the wiring plug-in is electrically connected with the first wiring terminal through a wiring harness; the two first insulation cavities are internally provided with a conductive connecting piece extending along a first direction, two ends of each conductive connecting piece are respectively provided with a second wiring terminal exposed out of the first insulation cavities, the first end of each conductive connecting piece is provided with a conductive connecting seat extending along a second direction and deviating from the second insulation cavity, one side of each first insulation cavity is provided with at least one first opening, the third direction of each first opening is perpendicular to the plane defined by the first direction and the second direction, and the first opening is provided with a connecting channel in surface contact with the conductive connecting seats. The invention has convenient and quick installation and greatly improves the stability of power supply and connection of the battery pack module.

Description

Battery package coupling assembling, battery package module and battery package

Technical Field

The invention relates to the field of electric connectors in vehicles, in particular to a battery pack connecting assembly, a battery pack module and a battery pack.

Background

The power battery module generally has two high-voltage poles and a low-voltage connector, and every two modules of connecting all need be connected high-voltage poles with the bolt fastening copper bar, and the low-voltage pencil is connected with module low-voltage connector through artifical installation. Along with the development of assembly technique, the different of using the scene need improve the installation effectiveness of battery module, and this kind of mode and the artifical low pressure connector of installation through the bolt fastening module copper bar is consuming time longer, and the installation is more loaded down with trivial details.

In view of the above, the invention provides a battery pack connecting assembly, a battery pack module and a battery pack.

Disclosure of Invention

Aiming at the problems in the prior art, the invention aims to provide a battery pack connecting assembly, a battery pack module and a battery pack, which are convenient and quick to install, can realize quick positioning and greatly improve the stability of power supply and connection of the battery pack module.

An embodiment of the present invention provides a battery pack connecting assembly, including: at least one first connector, the first connector comprising:

the two ends of the second insulating cavity are respectively provided with a plurality of first connecting terminals, and each first connecting terminal is electrically connected with one first connecting terminal at the other end;

the wiring plug-in is electrically connected with each first wiring terminal in the second insulating cavity through a wiring harness; and

the conductive connecting seat and the conductive connecting piece are integrally formed, one side of the first insulating cavity is provided with at least one first opening, the third direction of the first opening is perpendicular to the plane defined by the first direction and the second direction, and the first opening forms a connecting channel in surface contact with the conductive connecting seat.

Preferably, the first wiring terminals of the second insulating cavity are both low-voltage wiring male heads, and the low-voltage wiring male heads provide the plugging direction along the first direction.

Preferably, the second wiring terminal of the first insulation cavity is a high-voltage wiring female head, and the high-voltage wiring female head provides an insertion direction along the first direction.

Preferably, the second insulating cavity is provided with a second opening for the wiring harness to pass through, and the second opening and the first opening are located on the same side of the first connecting piece.

Preferably, the conductive connecting seat has a connecting hole with the first direction as an axial direction.

Preferably, the device further comprises at least one third connecting piece;

a first side and a second side opposite to the first side of the third connecting piece are respectively provided with a third wiring terminal and two fourth wiring terminals respectively positioned at two sides of the third wiring terminal, and the third wiring terminal and the fourth wiring terminal at the first side of the third connecting piece are respectively spliced and conducted with the first wiring terminal and the second wiring terminal at the first end of the first connecting piece; the third wiring terminal and the fourth wiring terminal on the second side of the third connecting piece are respectively spliced and conducted with the first wiring terminal and the second wiring terminal on the second end of the other first connecting piece; the third binding post is female head of low pressure wiring, the public head of fourth binding post high pressure wiring.

Preferably, two sides of the third connecting piece are respectively provided with a side wall which surrounds the third wiring terminal and is clamped with the opening of the second insulating cavity.

Preferably, the connector further comprises a fourth connecting piece, one side of the fourth connecting piece is provided with a fifth connecting terminal which is connected and conducted with the first connecting terminal of the second end of the first connecting piece, and a sixth connecting terminal which is connected and conducted with the second connecting terminal of the second end, the fifth connecting terminal is a low-voltage connecting female terminal, and the sixth connecting terminal is a high-voltage connecting male terminal.

Another embodiment of the present invention further provides a battery pack module, which includes a battery pack body and the above battery pack connecting assembly, wherein a seventh terminal for providing low voltage, an eighth terminal for providing high voltage positive electrode, and a ninth terminal for providing high voltage negative electrode are respectively disposed on two sides of the battery pack body;

the two first connecting pieces are respectively connected with two sides of the battery pack body, the wiring plug-in piece of the first connecting piece on each side is connected with the seventh wiring end in an inserting mode, the two first openings are sleeved with the eighth wiring end and the ninth wiring end on the same side of the battery pack body, and the eighth wiring end and the ninth wiring end are in surface contact with and conducted on the conductive connecting seat of the conductive connecting piece in the first insulating cavity respectively.

Another embodiment of the invention further provides a battery pack, which comprises at least n battery pack bodies connected in a stacking manner along the first direction and the battery pack connecting assembly, wherein n is greater than or equal to 2, and the adjacent battery pack bodies are connected through two third connecting pieces;

a seventh terminal for providing low voltage, an eighth terminal for providing a high-voltage positive electrode and a ninth terminal for providing a high-voltage negative electrode are respectively arranged on two sides of each battery pack body; the two first connecting pieces are respectively connected with two sides of the battery pack body, the wiring plug-in piece of the first connecting piece at each side is inserted into the seventh wiring terminal, the two first openings are sleeved with the eighth wiring terminal and the ninth wiring terminal at the same side of the battery pack body, and the eighth wiring terminal and the ninth wiring terminal are respectively in surface contact and conduction with the conductive connecting seat of the conductive connecting piece in the first insulating cavity;

the first ends of the first connecting pieces on the two sides of the battery pack body are respectively connected with the second side of the third connecting piece in an inserting mode, the second ends of the first connecting pieces on the two sides of the battery pack body are adjacent to each other and are respectively connected with the first side of the third connecting piece, the seventh connecting terminals of the battery packs are mutually communicated, the eighth connecting terminals of the battery packs are mutually communicated, and the ninth connecting terminals of the battery packs are mutually communicated.

The invention aims to provide a battery pack connecting assembly, a battery pack module and a battery pack, which are convenient and quick to install, can realize quick positioning, and greatly improve the stability of power supply and connection of the battery pack module.

Drawings

Other features, objects and advantages of the present invention will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, with reference to the accompanying drawings.

Fig. 1 is a schematic view of a first connecting member in the present invention.

Fig. 2 is a sectional view of a first connecting member in the present invention.

Fig. 3 is a schematic view of a third connector in the present invention.

Fig. 4 is a schematic view of a fourth connection in the present invention.

Fig. 5 is a schematic view of a battery pack module according to the present invention.

Fig. 6 is a schematic view of a battery pack of the present invention.

Fig. 7 is a sectional view of the battery pack according to the present invention in which two first connecting members are connected by a third connecting member.

Fig. 8 is a sectional view of the first connecting member and the fourth connecting member in the battery pack according to the present invention.

Reference numerals

1 first connecting member

10 protective cover

11 conductive connecting piece

12 low-voltage wiring male head

13 high-voltage wiring female head

14 high-voltage wiring female head

15 conductive connecting seat

16 low-voltage wiring male head

17 first insulating cavity

18 second insulating cavity

19 conducting wire

2 Wiring plug-in unit

21 wire harness

3 third connecting piece

31 third connector body

32 low-voltage wiring female head

33 high-voltage wiring male head

34 low-voltage wiring female head

35 high-voltage wiring male head

4 fourth connecting piece

41 fourth connector body

42 low-voltage wiring female head

43 high-voltage wiring male head

44 fixing hole

5 first Battery pack body

51 high-voltage anode copper bar

52 high-voltage negative copper bar

6 second Battery pack body

61 high-voltage anode copper bar

62 high-voltage negative copper bar

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their repetitive description will be omitted.

Fig. 1 is a schematic view of a first connecting member in the present invention. Fig. 2 is a sectional view of a first connecting member in the present invention. As shown in fig. 1 and 2, the battery pack connecting assembly of the present invention includes: at least one first connecting member 1, the first connecting member 1 comprising: a second insulating cavity 18 and two first insulating cavities 17 extending in parallel in a first direction Y (longitudinal direction based on the drawing), and a wiring plug-in 2.

The openings at two ends of the second insulating cavity 18 are respectively provided with a plurality of low-voltage wiring male heads 12 and 16, the low-voltage wiring male heads 12 and 16 provide the plugging direction along the first direction Y, and each low-voltage wiring male head 16 is respectively and electrically connected with one low-voltage wiring male head 12 at the other end through a wire 19 in the second insulating cavity 18.

The terminal insert 2 is electrically connected to each first terminal in the second insulating cavity 18 through a wire harness 21.

Two first insulation cavities 17 are integrally formed on two sides of the second insulation cavity 18, a conductive connecting piece 11 extending along the first direction Y is arranged in each first insulation cavity 17, two ends of each conductive connecting piece 11 respectively form high-voltage wiring female heads 13 and 14 exposed out of the first insulation cavity 17, and the high-voltage wiring female heads 13 and 14 provide an inserting direction along the first direction Y. In this embodiment, the high-voltage wiring female terminal refers to a female-type connection end for connecting a high-voltage positive terminal or a high-voltage negative terminal of the vehicle-mounted battery pack, and the low-voltage wiring male terminal refers to a male-type connection end for connecting a low-voltage terminal of the vehicle-mounted battery pack, and other definitions of "male terminal", "female terminal", "high voltage", and "low voltage" are analogized and will not be described in detail below. The first end of each conductive connector 11 is provided with a conductive connection socket 15 extending in a second direction X (transverse to the drawing) and facing away from the second insulating cavity 18. The conductive connection socket 15 has a connection hole with the first direction Y as the axial direction. The conductive connecting seat 15 and the conductive connecting member 11 are integrally formed, at least one first opening is disposed on one side of the first insulating cavity 17, a third direction Z (a direction perpendicular to the drawing) of the first opening is perpendicular to a plane defined by the first direction Y and the second direction X, and the first opening forms a connecting channel in surface contact with the conductive connecting seat 15. Each first insulating cavity 17 is further provided with a protective cover 10 for shielding the conductive connection socket 15. The protective cover 10 is used for protecting the copper bar connected with the conductive connecting seat 15 from leaking outside, and avoiding the risk of high voltage touch of personnel.

In a preferred embodiment, the second insulating cavity 18 is provided with a second opening for the passage of the wiring harness 21, the second opening being located on the same side of the first connecting member 1 as the first opening.

In this embodiment, the plugging and unplugging directions of the low-voltage wiring male connector and the high-voltage wiring female connector are the same, so that the low-voltage wiring male connector and the high-voltage wiring female connector of the first connecting piece can be synchronously switched on or off with other connecting pieces through one plugging and unplugging action between the first connecting piece and other connecting pieces.

Fig. 3 is a schematic view of a third connector in the present invention. As shown in fig. 3, the battery pack connecting assembly of the present invention further includes at least one third connecting member 3. The first side of the third connector body 31 of the third connector 3 is provided with a low-voltage wiring female head 32 and two high-voltage wiring male heads 33 respectively positioned at both sides of the low-voltage wiring female head 32. A second side of the third connector body 31 opposite to the first side is provided with a low-voltage wiring female head 34 and two high-voltage wiring male heads 35 respectively positioned at two sides of the low-voltage wiring female head 34. The low voltage connection female head 32 and the high voltage connection male head 33 on the first side of the third connecting member 3 are respectively inserted and conducted with the low voltage connection male head and the high voltage connection female head on the first end of the first connecting member 1. The low-voltage wiring female head 34 and the high-voltage wiring male head 35 on the second side of the third connecting piece 3 are respectively inserted and conducted with the low-voltage wiring male head and the high-voltage wiring female head on the second end of the other first connecting piece 1. Through a third connecting piece 3, the mechanical connection of two adjacent first connecting pieces 1 can be realized, the independent electric connection of the wiring terminals with the same attribute can be ensured, and the connection stability can be guaranteed. The third connecting member 3 may connect different battery pack connecting assemblies in a series connection manner or a parallel connection manner, which is not limited to this.

In a preferred embodiment, two sides of the third connecting member 3 are respectively provided with a sidewall surrounding the low-voltage female connector and engaged with the opening of the second insulating cavity 18, so as to enhance the connection strength between the two.

Fig. 4 is a schematic view of a fourth connection in the present invention. As shown in fig. 4, the battery pack connecting assembly of the present invention further includes a fourth connecting member 4, and a low voltage connection female terminal 42 inserted into and conducted with the low voltage connection male terminal of the second end of the first connecting member 1 and a high voltage connection male terminal 43 inserted into and conducted with the high voltage connection female terminal of the second end are disposed on one side of the fourth connecting member body 41 of the fourth connecting member 4. Each high-voltage wiring male head 43 is provided with a fixing hole 44 on one side away from the low-voltage wiring female head 42, and the fixing hole is used for fixing the battery pack on a mounting surface.

Fig. 5 is a schematic view of a battery pack module according to the present invention. As shown in fig. 5, the battery pack module of the present invention includes a battery pack body 5 and the above-mentioned battery pack connecting assembly. The battery pack body 5 is provided at both sides thereof with a seventh terminal (not shown), which provides a low voltage, an eighth terminal (e.g., a copper bar, not shown), which provides a high voltage positive electrode, and a ninth terminal (e.g., a copper bar, not shown), which provides a high voltage negative electrode, respectively. Two first connecting pieces 1 are respectively connected with two sides of the battery pack body through threads, the wiring plug-in piece of the first connecting piece 1 on each side is plugged with the seventh wiring end, the two first openings are sleeved with the eighth wiring end and the ninth wiring end on the same side of the battery pack body, and the eighth wiring end and the ninth wiring end are respectively in surface contact with and conducted on the conductive connecting seat of the conductive connecting piece in the first insulating cavity.

Fig. 6 is a schematic view of a battery pack of the present invention. Fig. 7 is a sectional view of the battery pack according to the present invention in which two first connecting members are connected by a third connecting member. Fig. 8 is a sectional view of the first connecting member and the fourth connecting member in the battery pack according to the present invention. As shown in fig. 6 to 8, the battery pack of the present embodiment includes two battery pack bodies 5 and 6 stacked and connected in the first direction Y, and the battery pack connecting assembly as described above, the battery pack bodies 5 and 6 are connected by two third connecting members 3, and second ends of the third connecting members 3 of the battery pack body 6 are respectively connected to a fourth connecting member 4, and the battery pack is fixed to the mounting surface through a fixing hole 44 of the fourth connecting member 4. The number of the battery pack bodies which are mutually overlapped can be more than 2, and the battery pack connecting assembly is also used for mechanical connection and electrical connection, but not limited to this. The battery pack in the embodiment is formed by a plurality of battery pack bodies (more than or equal to 2), corresponding management systems and a shell.

A seventh terminal (not shown in the figure) for providing low voltage, a high-voltage positive copper bar 51 for providing a high-voltage positive electrode and/or a high-voltage negative copper bar 52 for providing a high-voltage negative electrode are respectively arranged at two sides of the battery pack body 5; the two first connecting pieces 1 are respectively connected with two sides of the battery pack body, the wiring plug-in piece 2 of the first connecting piece 1 on each side is plugged with the seventh wiring end, the two first openings are sleeved with the high-voltage positive copper bar 51 and/or the high-voltage negative copper bar 52 on the same side of the battery pack body, and the high-voltage positive copper bar 51 and/or the high-voltage negative copper bar 52 are respectively in surface contact with and conducted with the conductive connecting seat 15 of the conductive connecting piece 11 in the first insulating cavity 17.

A seventh terminal (not shown in the figure) for providing low voltage, a high-voltage positive copper bar 61 for providing a high-voltage positive electrode and/or a high-voltage negative copper bar 62 for providing a high-voltage negative electrode are respectively arranged at two sides of the battery pack body 6; the two first connecting pieces 1 are respectively connected with two sides of the battery pack body, the wiring plug-in piece 2 of the first connecting piece 1 on each side is plugged with the seventh wiring end, the two first openings are sleeved with the high-voltage positive electrode copper bar 61 and/or the high-voltage negative electrode copper bar 62 on the same side of the battery pack body, and the high-voltage positive electrode copper bar 61 and/or the high-voltage negative electrode copper bar 62 are respectively in surface contact with and conducted on the conductive connecting seats 15 of the conductive connecting pieces 11 in the first insulating cavity 17.

In this embodiment, the first connecting members 1 on both sides of the battery pack body are mechanically connected through a third connecting member 3, the second ends of the first connecting members 1 on both sides of the battery pack body 5 are respectively connected to the first sides of the third connecting members 3, and the first ends of the first connecting members 1 on both sides of the battery pack body 6 are respectively connected to the second sides of the third connecting members 3 in an inserting manner, so that the independent electrical connection of the connecting terminals with the same attribute is ensured, and the connection stability is ensured.

When the battery pack is installed, the battery pack body 5 and the battery pack body 6 are respectively combined with the first connecting piece 1, the seventh wiring ends on the two sides of the battery pack body are respectively connected with the first connecting piece 1, and then the first connecting piece 1 is sleeved on the high-voltage positive copper bar and the high-voltage negative copper bar on the two sides of the battery pack body and is in threaded connection with the conductive connecting seat 15 through bolts. Then, the battery pack body 5 with the first connecting pieces 1 is connected with the first sides of the two third connecting pieces 3, the battery pack body 6 with the first connecting pieces 1 is connected with the second sides of the two third connecting pieces 3, and finally, the first connecting pieces 1 on the two sides of the battery pack body 6 are connected with the fourth connecting pieces 4 and then are installed on the preset installation surface through the fixing holes 44 of the fourth connecting pieces 4.

After the installation is completed, the seventh terminal of the battery pack body 5 is electrically connected with the low-voltage female terminal 32 of the third connecting piece 3 through the wiring plug-in piece 2 of the first connecting piece 1, and the low-voltage female terminal 34 of the third connecting piece 3 is electrically connected with the seventh terminal of the battery pack body 6 through the wiring plug-in piece 2 of the other first connecting piece 1, so that the seventh terminal of the battery pack body 5 is conducted with the seventh terminal of the battery pack body 6.

The high-voltage positive copper bar 51 of the battery pack body 5 is electrically connected with the high-voltage wiring male head 33 of the first side of the third connecting piece 3 through the conductive connecting piece 11 of the first side of the first connecting piece 1, and the high-voltage wiring male head 35 of the third connecting piece 3 is electrically connected with the high-voltage positive copper bar 61 of the battery pack body 6 through the conductive connecting piece 11 of the other first connecting piece 1, so that the high-voltage positive copper bar 51 of the battery pack body 5 is connected with the high-voltage positive copper bar 61 of the battery pack body 6.

The high-voltage negative copper bar 52 of the battery pack body 5 is electrically connected with the high-voltage wiring male head 33 of the second side of the third connecting piece 3 through the conductive connecting piece 11 of the second side of the first connecting piece 1, and the high-voltage wiring male head 35 of the third connecting piece 3 is electrically connected with the high-voltage negative copper bar 62 of the battery pack body 6 through the conductive connecting piece 11 of the other first connecting piece 1, so that the high-voltage negative copper bar 52 of the battery pack body 5 is connected with the high-voltage negative copper bar 62 of the battery pack body 6.

By analogy, a plurality of battery pack bodies with the first connecting pieces 1 can be connected at one time through the matching of a plurality of pairs of third connecting pieces 3, wherein the third connecting pieces 3 provide mechanical connection of adjacent battery pack bodies and also provide independent electric connection of connecting terminals with the same attribute in the battery pack bodies. The high-low voltage scheme of the battery pack has the advantages of high integration level, convenience in disassembly, high speed and the like.

In summary, the present invention is directed to a battery pack connecting assembly, a battery pack module and a battery pack, which are convenient and fast to install, can realize fast positioning, and greatly improve the stability of power supply and connection of the battery pack module.

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.

Claims

1. A battery pack connection assembly, comprising: at least one first connector, the first connector comprising:

2. The battery pack connection assembly of claim 1, wherein the first connection terminals of the second insulating cavity are both low voltage male terminals that provide a plugging direction along the first direction.

3. The battery pack connection assembly of claim 2, wherein the second connection terminals of the first insulation cavity are high voltage female connection terminals that provide a plugging direction along the first direction.

4. The battery pack connection assembly of claim 1, wherein the second insulating cavity is provided with a second opening for the wiring harness to pass through, and the second opening is located on the same side of the first connector as the first opening.

5. The battery pack connecting assembly according to claim 1, wherein the conductive connecting socket has a connecting hole axially oriented in the first direction.

6. The battery pack connection assembly of claim 1, further comprising at least one third connector;

7. The battery pack connecting assembly according to claim 6, wherein sidewalls surrounding the third connecting terminal and engaged with the opening of the second insulating cavity are respectively provided on both sides of the third connecting member.

8. The battery pack connecting assembly according to claim 1, further comprising a fourth connecting member, wherein a fifth connecting terminal connected to and conducted with the first connecting terminal at the second end of the first connecting member and a sixth connecting terminal connected to and conducted with the second connecting terminal at the second end are disposed on one side of the fourth connecting member, the fifth connecting terminal is a female low-voltage connecting terminal, and the sixth connecting terminal is a male high-voltage connecting terminal.

9. A battery pack module, comprising a battery pack body and the battery pack connecting assembly as claimed in claim 1, wherein the battery pack body is provided at two sides thereof with a seventh terminal for providing low voltage, an eighth terminal for providing high voltage positive electrode and a ninth terminal for providing high voltage negative electrode;

10. A battery pack is characterized by comprising at least n battery pack bodies which are connected in a stacking mode along the first direction and a battery pack connecting assembly according to claim 6, wherein n is more than or equal to 2, and the adjacent battery pack bodies are connected through two third connecting pieces;