CN216389807U

CN216389807U - High-voltage output assembly based on connector and battery module thereof

Info

Publication number: CN216389807U
Application number: CN202123075801.9U
Authority: CN
Inventors: 占杨娇; 马姜浩; 张鹏; 安婷; 杨秋立; 金佺良
Original assignee: Jiangsu Zenergy Battery Technologies Co Ltd
Current assignee: Jiangsu Zenio New Energy Battery Technologies Co Ltd
Priority date: 2021-12-09
Filing date: 2021-12-09
Publication date: 2022-04-26
Anticipated expiration: 2031-12-09

Abstract

The utility model discloses a high-voltage output assembly based on a connector and a battery module thereof. The high-voltage output assembly based on the connector comprises a single-core plug, a fixing part and a plug fin. The plugging bar sheet is connected with the inserting core of the electric core plug. The fixing part is provided with an installation part which is used for being clamped into the hollow hole of the end plate of the battery module. The single-core plug is connected with the fixing part either through clamping or through a bolt or in an integrated mode. When the battery module is assembled into the battery pack, high-voltage electrical connection is very convenient. The high-voltage wire can be connected with the output of the battery module only by being plugged into and pulled out of the single-core plug.

Description

High-voltage output assembly based on connector and battery module thereof

Technical Field

The present invention relates to a battery module, and more particularly, to a high voltage output assembly of a battery module.

Background

Under the prior art, the high-voltage line in the battery pack is usually connected with the high-voltage output assembly of the battery module through a copper bar in a bolt fastening mode. This type of connection has the following problems in power batteries:

1. the bolt needs to spend longer time for locking, mounting and dismounting, and the battery pack assembly and maintenance efficiency is influenced;

2. the vehicle vibrations lead to the bolt not hard up easily, and under the not hard up condition of bolt, the battery module output does not fasten with being connected of copper bar, has the problem of generating heat to lead to the security problem.

Disclosure of Invention

The problems to be solved by the utility model are as follows: the battery pack has the defects in the background technology that the battery pack is fastened with the output end of the battery module through the copper bar in a bolt fastening mode.

In order to solve the problems, the utility model adopts the following scheme:

the high-voltage output assembly based on the connector comprises a single-core plug, a fixing part and a plug-in fin; the single-core plug comprises a butt-joint sleeve and a core insert serving as a conductor; the insertion core is a columnar body, is arranged in the center of the butting sleeve of the tubular body and is coaxial with the butting sleeve; the fixing part comprises a base and a mounting part; the base is used for connecting the single-core plug and the patch strip; the mounting part is connected with the base and is used for being fixed with the battery module; the plug-in bus bar sheet is connected with the plug core.

Further, according to the high-voltage output assembly based on the connector, the single-core plug, the fixing part and the plug fin are of an integrated structure.

Further, according to the high-voltage output assembly based on the connector, the single-core plug and the patch bar are integrally connected; the fixing part is mutually independent with the integrally connected single-core plug and the plug-in fin.

Further, according to the high-voltage output assembly based on the connector, the single-core plug also comprises a mounting plate; the butt joint sleeve and the inserting core are arranged on the front surface of the mounting plate; the patch bar is arranged on the back of the mounting plate; the axes of the butt-joint sleeve and the insertion core are vertical to the plate surface of the mounting plate.

Further, according to the high-voltage output assembly based on the connector, a bus piece cavity is formed in the base; the side surface of the tablet cavity is provided with a first tablet opening and a second tablet opening; a part for fixing the single-core plug with the mounting plate is arranged on the side surface of the base, which is provided with the first tab opening, so that the single-core plug can be fixed with the base through the mounting plate; when the single-core plug is fixed with the base, the plug-in pin can penetrate into the pin cavity through the first pin port, so that the plug-in pin can be accommodated in the pin cavity, and the tail end of the plug-in pin penetrates out of the pin cavity through the second pin port.

Further, according to the connector-based high-voltage output assembly of the present invention, the fixing portion further includes a blade protection cover for being disposed on the blade cavity.

Further, according to the connector-based high-voltage output assembly, the mounting plate is provided with a first mounting hole; a second mounting hole matched with the first mounting hole is formed in the base; the mounting plate can be fixed with the base in a mode of arranging bolts or rivets in the first mounting holes and the corresponding second mounting holes.

Further, according to the high-voltage output assembly based on the connector, the clamping groove is formed in the outer side, provided with the first bus bar opening, of the bus bar cavity; the mounting plate can be clamped into the clamping groove to be fixed with the base.

The battery module comprises a module frame and a plurality of batteries arranged in the module frame; the module frame comprises two end plates and two side plates which are oppositely arranged; the end plate is provided with the high-voltage output assembly based on the connector; the high-voltage output assembly based on the connector is connected with the battery through a patch bar.

Further, according to the battery module, the end plate is provided with a hollow hole in the vertical direction; the high-voltage output assembly based on the connector assembly is clamped into the hollow hole through the mounting part and is arranged at the top end of the end plate; the axis of the butt-joint sleeve and the axis of the inserting core are horizontally arranged and are parallel to the end plate.

The utility model has the following technical effects:

1. the connection between the high-voltage wire of the battery pack and the output end of the battery module is realized in a plug plugging mode, so that the battery pack is convenient to assemble and maintain later;

2. the problem of bolt looseness does not exist, and therefore the problem of heating of the output end of the battery module is avoided.

Drawings

Fig. 1 is a schematic view of an assembly structure of an embodiment of a high voltage output assembly of the present invention.

Fig. 2 is a schematic structural view illustrating a connection between a high voltage output device according to an embodiment of the present invention and a battery module.

Fig. 3 is a schematic view of an assembly structure of an embodiment of the high-voltage output assembly of the present invention.

Fig. 4 is another assembly schematic of the high voltage output assembly of the present invention.

In each of the above-described figures,

1 is a single-core plug, 11 is a butt joint sleeve, 12 is a plug core, 13 is a mounting plate, and 14 is a first mounting hole;

2 is a fixing part, 21 is a base, 22 is a piece protection cover, 23 is a mounting part, 24 is a piece cavity, 241 is a first piece opening, 242 is a second piece opening, 25 is a second mounting hole, 26 is a clamping groove, and 29 is a cover plate clamping column;

3 is a patch; 900 is a module frame, 911 is an end plate, 9111 is a hollow hole, 912 is a side plate, 913 is a module cover plate, and 920 is a high-voltage output assembly.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

FIG. 1 illustrates a connector-based high voltage output assembly. The high voltage output assembly is used for a battery module as an output electrode, referring to fig. 2. In fig. 2, the battery module includes a module frame 900 and a plurality of batteries disposed in the module frame 900. The module frame 900 includes end plates 911 and side plates 912. Two oppositely arranged end plates 911 and two oppositely arranged side plates 912 form a die set frame 900 with a tapered structure, and batteries are arranged in the die set frame 900 and are packaged above the batteries through a die set cover plate 913. The end plate 911 is an aluminum alloy plate with a plurality of hollowed-out holes 9111 arranged in the longitudinal direction. The high voltage output member 920 is provided on the end plate 911 to connect the cells in the module frame 900 as the output electrodes of the battery module. The high voltage output assembly 920 shown in fig. 2 is a connector-based high voltage output assembly of the present embodiment.

The high-voltage output assembly based on the connector at least comprises a single-core plug 1, a fixing part 2 and a connector fin 3. The single core plug 1 includes a ferrule 11 and a ferrule 12 as a conductor. The ferrule 12 is a cylindrical body, is disposed at the center of the docking sleeve 11, and is coaxial with the docking sleeve 11. The fixing portion 2 includes a base 21 and a mounting portion 23. The base 21 is used for connecting the single-core plug 1 and the patch bar 3. Alternatively, the single-core connector 1 and the connector strip 3 are arranged on the base 21. The mounting portion 23 is connected to the base 21 for fixing with the battery module. With specific reference to the present embodiment, more specifically, the mounting portion 23 and the hollowed-out hole 9111 on the end plate 911 are matched, and thus, the mounting portion 23 can be snapped into the hollowed-out hole 9111 on the end plate 911, so that the high-voltage output assembly can be fixed on the end plate 911. The connector bar 3 is connected with the inserting core 12. The connection here means that the connector blades 3 and the ferrule 12 are electrically connected. When the high-voltage output assembly is arranged on the battery module, the plug-in bus bar 3 is connected with a battery electrode in the battery module. When the plug strap 3 is connected with the battery in the battery module, the plug strap 3 is usually connected by welding, but those skilled in the art understand that the plug strap 3 can also be connected with the battery in the battery module by bolt fastening.

The single-core plug 1, the fixing part 2 and the patch 3 can be in an integrated structure. In this case, the high voltage output member is an integrated part, and can be directly mounted on the battery module without additional assembly. The high voltage output component in this embodiment is a fitting. The single-core plug 1 and the patch panel 3 are integrally connected, and the fixing part 2 is independent of the integrally connected single-core plug 1 and the patch panel 3. The fixing portion 2 further includes a blade protection cover 22. In the fixing portion 2, the base 21 and the attachment portion 23 are integrally connected, and the flap protection cover 22 is another independent member.

Specifically, referring to fig. 3, the single core plug 1 further includes a mounting plate 13. The docking sleeve 11 and the ferrule 12 are disposed on the front surface of the mounting plate 13. The patch 3 is provided on the back surface of the mounting plate 13. The axes of the docking sleeve 11 and the ferrule 12 are perpendicular to the plate surface of the mounting plate 13. The inserting fin 3 is in a Z-shaped structure. The base 21 is provided with a fin cavity 24. The flap cavity 24 is open at the top and laterally provided with a first flap opening 241 and a second flap opening 242. The side of the base 21 provided with the first tab opening 241 is provided with means for fixing with the mounting plate 13, so that the single-core connector 1 can be fixed with the base 21 by means of the mounting plate 13. When the single-core plug 1 is fixed with the base 21, the plug blade 3 can penetrate into the blade cavity 24 through the first blade opening 241, so that the plug blade 3 can be received in the blade cavity 24, and the tail end of the plug blade 3 penetrates out of the blade cavity 24 through the second blade opening 242. The blade protection cover 22 is connected to the base 21 through a cover plate snap post 29, is disposed at the top opening of the blade cavity 24, and thus covers the blade cavity 24.

In addition, in this embodiment, the base 21 is a square body, and the fin cavity 24 is a square cavity. The first tab opening 241 and the second tab opening 242 are located on two adjacent sides, respectively. Therefore, the part of the inserting bar 3 penetrating into the first bar opening 241 is vertical to the part of the inserting bar 3 penetrating out of the second bar opening 242, and the part of the inserting bar 3 penetrating out of the second bar opening 242 is vertical to the axis of the single-core plug 1. When the single-core plug is installed on the end plate 911, the axis of the single-core plug 1 is horizontal and is parallel to the plate surface of the end plate 911, and the plugging fin 3 penetrates out of the inner side surface of the end plate 911 to be connected with a battery on the inner side of the end plate 911. The axes of the single core plug 1 are the axes of the docking sleeve 11 and the ferrule 12.

In addition, in the present embodiment, the single-core plug 1 and the patch bar 3 that are integrally connected may be mounted on the base 21 by using bolts or rivets. Referring to fig. 3, the mounting plate 13 is provided with a first mounting hole 14. The side of the base 21 provided with the first jaw 241 is provided with a second mounting hole 25 matched with the first mounting hole 14. Thus, the mounting plate 13 can be fixed to the base 21 by providing bolts or rivets in the first mounting holes 14 and the corresponding second mounting holes 25.

Those skilled in the art will understand that the single-core plug 1 and the patch bar 3 connected integrally can be fixed to the base 21 by means of a detent, for example, referring to fig. 4, in the structure illustrated in fig. 4, the outer side of the bar cavity 24 where the first bar opening 241 is located is provided with a detent groove 26. The locking groove 26 is matched with the mounting plate 13, so that the mounting plate 13 can be locked into the locking groove 26, and the single-core plug 1 can be locked into the locking groove 26 through the mounting plate 13 to be fixed with the base 21.

Claims

1. A high-voltage output assembly based on a connector is characterized by comprising a single-core plug (1), a fixing part (2) and a plug-in fin (3); the single-core plug (1) comprises a butt-joint sleeve (11) and a plug core (12) serving as a conductor; the insertion core (12) is a columnar body, is arranged in the center of the butt joint sleeve (11) of the tubular body and is coaxial with the butt joint sleeve (11); the fixing part (2) comprises a base (21) and a mounting part (23); the base (21) is used for connecting the single-core plug (1) and the patch strip (3); the mounting part (23) is connected with the base (21) and is used for being fixed with the battery module; the inserting bar sheet (3) is connected with the inserting core (12).

2. Connector-based high-voltage output assembly according to claim 1, characterized in that the single-core connector plug (1), the fixing part (2) and the connector blades (3) are of an integrated construction.

3. Connector-based high-voltage output assembly according to claim 1, characterized in that the single-core plug (1) and the connector blade (3) are integrally connected; the fixing part (2) is mutually independent with the integrally connected single-core plug (1) and the patch strip (3).

4. Connector-based high-voltage output assembly according to claim 3, wherein the single-core plug (1) further comprises a mounting plate (13); the butt joint sleeve (11) and the inserting core (12) are arranged on the front surface of the mounting plate (13); the patch bar (3) is arranged on the back of the mounting plate (13); the axes of the butting sleeve (11) and the inserting core (12) are vertical to the plate surface of the mounting plate (13).

5. The connector-based high-voltage output assembly according to claim 4, wherein the base (21) is provided with a blade cavity (24); a first jaw opening (241) and a second jaw opening (242) are formed in the side face of the jaw cavity (24); a component for fixing with the mounting plate (13) is arranged on the side surface of the base (21) provided with the first tab opening (241), so that the single-core plug (1) can be fixed with the base (21) through the mounting plate (13); when the single-core plug (1) is fixed with the base (21), the plug-in pin (3) can penetrate into the pin cavity (24) through the first pin opening (241), so that the plug-in pin (3) can be accommodated in the pin cavity (24), and the tail end of the plug-in pin (3) penetrates out of the pin cavity (24) through the second pin opening (242).

6. Connector-based high-voltage output assembly according to claim 5, characterized in that the fixing part (2) further comprises a blade protection cover (22) for being arranged on the blade cavity (24).

7. Connector-based high-voltage output assembly according to claim 5, wherein the mounting plate (13) is provided with a first mounting hole (14); a second mounting hole (25) matched with the first mounting hole (14) is formed in the base (21); the mounting plate (13) can be fixed to the base (21) by means of bolts or rivets arranged in the first mounting holes (14) and the corresponding second mounting holes (25).

8. The connector-based high-voltage output assembly according to claim 5, wherein the locking groove (26) is provided outside the blade chamber (24) provided with the first blade opening (241); the mounting plate (13) can be clamped into the clamping groove (26) to realize the fixation with the base (21).

9. A battery module comprises a module frame and a plurality of batteries arranged in the module frame; the module frame comprises two end plates and two side plates which are oppositely arranged; wherein the end plate is provided with a connector-based high-voltage output assembly as claimed in any one of claims 1 to 8; the high-voltage output assembly based on the connector is connected with the battery through a plug-in fin (3).

10. The battery module according to claim 9, wherein the end plates are vertically provided with hollowed holes; the high-voltage output assembly based on the connector is clamped into the hollow hole through an installation part (23) and is arranged at the top end of the end plate; the axis of the butt-joint sleeve (11) and the axis of the inserting core (12) are horizontally arranged and are parallel to the end plate.