Battery connection module, battery connection assembly and battery connection system

Abstract

The present invention discloses a battery connection module, a battery connection assembly, and a battery connection system. The battery connection module comprises: a busbar (2) used for electrical connection to a battery cell; and a connector (1) installed on the busbar (2) to electrically connect the busbar (2) to a wire (40) of a ribbon cable (4). The connector (1) comprises: a first housing (10) and a first terminal (13) arranged in the first housing (10). The base of the first terminal (13) is exposed from the base of the first housing (10) and welded to the busbar (2). The first terminal (13) has a wire clamping structure (130) used for clamping the wire (40) for electrical connection.In the present invention, the battery connection module or the temperature sensing module can be replaced separately without having to replace the entire battery connection assembly or the entire battery connection system, thereby saving maintenance and repair costs. Furthermore, the present invention does not require expensive flexible printed circuit boards, but only cost-effective ribbon cables, thus significantly reducing costs.

Description

REFERENCE TO RELATED REGISTRATION

[0001] This application claims the benefits of Chinese patent application No. CN202411354895.9, which was filed with the State Intellectual Property Administration of China on September 26, 2024, and the entire disclosure of which is hereby incorporated by reference. BACKGROUND OF THE INVENTION Area of ​​the invention

[0002] The present invention relates to a battery connection module, a battery connection arrangement comprising the battery connection module, and a battery connection system comprising the battery connection arrangement. Description of the state of the art

[0003] In the prior art, the battery-integrated busbar system (also known as the battery interconnection system) is the core component of electric vehicles, and its manufacturing process influences battery performance and safety. In the prior art, the battery-integrated busbar system primarily uses flexible printed circuit boards (FPCs) as a transmission medium, integrating voltage sensing, temperature sensing, overcurrent protection, electrical cell interconnection, and structural support. The flexible printed circuit board is a highly integrated component with a relatively high price, which can lead to increased costs.

[0004] Furthermore, in the prior art, busbars, temperature sensors, and fuses are all integrated onto flexible printed circuit boards (PCBs). The busbar and temperature sensor are typically soldered directly onto the PCB, and the fuse is formed directly onto the PCB through an etching process. Therefore, in the prior art, if a temperature sensor or fuse malfunctions, the entire flexible PCB must be scrapped and replaced, resulting in high repair and maintenance costs. SUMMARY OF THE INVENTION

[0005] The present invention was developed to overcome or mitigate at least one aspect of the aforementioned disadvantages.

[0006] According to one aspect of the present invention, a battery connection module is provided. The battery connection module comprises: a busbar used for the electrical connection to a battery cell; and a connector installed on the busbar to electrically connect the busbar to a wire of a ribbon cable. The connector comprises: a first housing; and a first terminal arranged in the first housing. The base of the first terminal is exposed and welded to the busbar. The first terminal has a wire clamping structure used for clamping the wire for the electrical connection.

[0007] According to an exemplary embodiment of the present invention, the wire clamping structure comprises a pair of elastic arms, and the wire is designed to be clamped between the pair of elastic arms; a first guide chamfer is formed on the inside of the end of the pair of elastic arms to guide the wire that is to be inserted between the pair of elastic arms.

[0008] According to a further exemplary embodiment of the present invention, the first connection also has a first base plate which is connected to the elastic arm, which is exposed from the bottom of the first housing and welded to the busbar.

[0009] According to a further exemplary embodiment of the present invention, a sealing means is provided in the first housing which covers the first base plate of the first connection in order to prevent oxidation of the weld part of the first base plate.

[0010] According to a further exemplary embodiment of the present invention, the first connection has two wire clamping structures which are arranged opposite each other in the longitudinal direction of the first housing, and the two wire clamping structures clamp the wire simultaneously.

[0011] According to a further exemplary embodiment of the present invention, the first base plate has two opposing front and back sides in the longitudinal direction, and the two wire clamping structures are each connected to the front and back side of the first base plate.

[0012] According to a further exemplary embodiment of the present invention, a first positioning bushing is formed in the first base plate, and a first positioning projection is formed on the busbar, wherein the first positioning projection engages with the first positioning bushing to position the first connection on the busbar.

[0013] According to a further exemplary embodiment of the present invention, the first housing comprises: a first base having an upper opening; and a first upper cover installed on the upper opening of the first base. The first connector is arranged in the first base, with an opening formed at the bottom of the first base so that the bottom of the first connector can be exposed through the opening, and slotted holes are formed in the front and rear side walls of the first base, respectively, to allow the wire to pass through them.

[0014] According to a further exemplary embodiment of the present invention, a convex rib is formed on the first upper cover, corresponding to the slotted hole in the first base, and the convex rib is designed to be inserted into the slotted hole in order to press and hold the wire in the wire clamping structure of the first terminal.

[0015] According to a further exemplary embodiment of the present invention, one side of the first upper cover and one side of the first base are rotatably connected to each other, so that the first upper cover can be opened and closed relative to the first base; when the first upper cover is rotated into the closed position, the convex rib presses the wire into the wire clamping structure of the first terminal and holds it there.

[0016] According to a further exemplary embodiment of the present invention, a buckle is formed on the first upper cover, and a projection is formed on the first base which engages in the snap slot on the buckle in order to lock the first upper cover in the closed position.

[0017] According to a further exemplary embodiment of the present invention, the first housing is an integral injection-molded part and further comprises a flexible connecting part which is connected between the first upper cover and the first base, such that the first upper cover is rotatable relative to the first base.

[0018] According to a further exemplary embodiment of the present invention, a positioning column is formed on the bottom surface of the first base, and a positioning hole is formed in the busbar, wherein the positioning column engages with the positioning hole to position the first housing on the busbar.

[0019] According to a further aspect of the present invention, a battery connection arrangement is provided. The battery connection arrangement comprises: a ribbon cable with at least one series of wires; and the above-mentioned battery connection module, wherein the wire clamping structure of the first terminal clamps a corresponding wire of the ribbon cable.

[0020] According to an exemplary embodiment of the present invention, the battery connection arrangement comprises several battery connection modules, and the wire clamping structures of the first terminals of the several battery connection modules each clamp several wires of the ribbon cable.

[0021] According to a further aspect of the present invention, a battery connection module is provided. The battery connection module comprises: a busbar used for the electrical connection to a battery cell; and a connector installed on the busbar for electrically connecting the busbar to a wire of a ribbon cable. The connector comprises: a first housing; a first terminal arranged in the first housing; a second terminal arranged in the first housing; and a fuse installed in the first housing and connected in series between the first terminal and the second terminal. The base of the first terminal is exposed from the base of the first housing and welded to the busbar. The second terminal has a wire clamping structure used for clamping the wire for the electrical connection.

[0022] According to an exemplary embodiment of the present invention, the wire clamping structure comprises a pair of elastic arms, and the wire is designed to be clamped between the pair of elastic arms; a first guide chamfer is formed on the inside of the end of the pair of elastic arms to guide the wire that is to be inserted between the pair of elastic arms.

[0023] According to a further exemplary embodiment of the present invention, the first terminal and the second terminal each have a conductor clamping structure, and the conductor clamping structures of the first terminal and the second terminal each clamp the two first conductors of the fuse, so that the fuse is connected in series between the first terminal and the second terminal.

[0024] According to a further exemplary embodiment of the present invention, the conductor clamping structure comprises a pair of cantilever parts, and the first conductor of the fuse is designed to be clamped between the pair of cantilever parts; a second guide chamfer is formed on the inside of the end of the pair of cantilever parts to guide the first conductor wire of the fuse between the pair of cantilever parts.

[0025] According to a further exemplary embodiment of the present invention, the first terminal also has a first base plate connected to its conductor clamping structure, and the first base plate is exposed from the bottom of the first housing and welded to the busbar; the second terminal also has a second base plate connected to its wire clamping structure and its conductor clamping structure.

[0026] According to a further exemplary embodiment of the present invention, the second terminal has two wire clamping structures spaced apart opposite each other in the longitudinal direction of the first housing, and the two wire clamping structures of the second terminal clamp the wire simultaneously.

[0027] According to a further exemplary embodiment of the present invention, the first terminal has two conductor clamping structures arranged opposite each other in the longitudinal direction of the first housing, and the two conductor clamping structures of the first terminal simultaneously clamp one first terminal of the fuse. The second terminal has two conductor clamping structures arranged opposite each other in the longitudinal direction of the first housing, and the two conductor clamping structures of the second terminal simultaneously clamp the other first conductor of the fuse.

[0028] According to a further exemplary embodiment of the present invention, the first base plate has a front and a rear side in the longitudinal direction, and the two conductor clamping structures of the first terminal are each connected to the front and rear sides of the first base plate, respectively. The second base plate has a front and a rear side in the longitudinal direction, and the two conductor clamping structures of the second terminal are each connected to the front and rear sides of the second base plate, respectively. The two wire clamping structures of the second terminal are each connected to the front and rear sides of the second base plate, respectively, and are spaced apart from the conductor clamping structure of the second terminal in the transverse direction of the first housing.

[0029] According to a further exemplary embodiment of the present invention, a first positioning bushing is formed in the first base plate, and a first positioning projection is formed on the busbar, wherein the first positioning projection engages with the first positioning bushing to position the first connection on the busbar.

[0030] According to a further exemplary embodiment of the present invention, the first housing comprises: a first base having an upper opening; and a first upper cover installed on the upper opening of the first base. The first port and the second port are arranged in the first base, and an opening is formed in the bottom of the first base so that the bottom of the first port can be exposed through the opening.

[0031] According to a further exemplary embodiment of the present invention, a transverse wall is formed in the first base to divide the interior of the first base into a front chamber and a rear chamber, and a longitudinal wall is formed to divide the front chamber into a left chamber and a right chamber, wherein the first terminal and the second terminal are arranged in the right chamber and the left chamber of the first base respectively, and the body of the fuse is arranged in the rear chamber of the first base, wherein a first wire groove through which the wire can be passed and a first conductor groove through which the first conductor wire of the fuse can be passed are formed in the front side wall and the transverse wall of the first base respectively.

[0032] According to a further exemplary embodiment of the present invention, a positioning column is formed on the bottom surface of the first base, and a positioning hole is formed in the busbar, wherein the positioning column is engaged with the positioning hole to position the first housing on the busbar.

[0033] According to another aspect of the present invention, a battery connection arrangement is provided.

[0034] The battery connection arrangement comprises: a ribbon cable with at least one series of wires; and the above-mentioned battery connection module, wherein the wire clamping structure of the second terminal clamps a corresponding wire of the ribbon cable.

[0035] According to an exemplary embodiment of the present invention, the battery connection arrangement comprises several battery connection modules, and the wire clamping structures of the second terminals of the several battery connection modules each clamp several wires of the ribbon cable.

[0036] According to a further aspect of the present invention, a battery connection system is provided. The battery connection system comprises: the above-mentioned battery connection arrangement; and a shell on which the battery connection arrangement is installed.

[0037] According to an exemplary embodiment of the present invention, the battery connection system further comprises a temperature sensing module which is installed on the shell to detect the temperature of a battery.

[0038] According to a further exemplary embodiment of the present invention, the temperature sensing module comprises: a second housing; two terminals arranged in the second housing, each having a first clamping structure; a temperature sensor installed in the second housing and connected in series between the two terminals; and a thermal pad installed in the second housing and in thermal contact with the temperature sensor. The first clamping structures of the two terminals each clamp two wires of the ribbon cable to establish an electrical connection, with the thermal pad being exposed from the bottom of the second housing to establish thermal contact with the battery cell, the top cover of the battery pack, or the busbar and to transfer heat from the battery cell, the top cover of the battery pack, or the busbar to the temperature sensor.

[0039] According to a further exemplary embodiment of the present invention, the two terminals each have a second clamping structure, and the second clamping structures of the two terminals each clamp two second leads of the temperature sensor, so that the temperature sensor is connected in series between the two terminals.

[0040] According to a further exemplary embodiment of the present invention, the terminal has two first clamping structures arranged opposite each other in the longitudinal direction of the second housing to clamp the wire simultaneously; the terminal has two second clamping structures arranged opposite each other in the longitudinal direction of the second housing to clamp the second conductor wire of the temperature sensor simultaneously.

[0041] According to a further exemplary embodiment of the present invention, the first clamping structure of the connector comprises a pair of first elastic arms, and the wire is clamped between the pair of first elastic arms; the second clamping structure of the connector comprises a pair of second elastic arms, and the second conductor wire of the temperature sensor is clamped between the pair of second elastic arms.

[0042] According to a further exemplary embodiment of the present invention, the connector has a base plate which has opposite front and back sides in the longitudinal direction of the second housing, wherein the two first clamping structures of the connector are each connected to the front and back of the base plate; the two second clamping structures of the connector are each connected to the front and back of the base plate, and the first clamping structure and the second clamping structure of the connector are spaced apart from each other in the transverse direction of the second housing.

[0043] According to a further exemplary embodiment of the present invention, the second housing comprises: a second base having an upper opening; and a second upper cover installed on the upper opening of the second base.In the second base, a first partition is formed to divide the interior of the second base into a front chamber and a rear chamber, and a second partition is formed to divide the front chamber into a left chamber and a right chamber, with the two terminals each being arranged in the left chamber and the right chamber of the second base, and the main body of the temperature sensor and the thermal pad are arranged in the rear chamber of the second base, with a second wire groove through which the wire can be passed and a second wire groove through which the second lead of the temperature sensor can be passed being formed in the front wall of the second base and the first partition, respectively.

[0044] According to a further exemplary embodiment of the present invention, an elastic locking buckle is formed on the bottom of the second base, and a locking hole is formed in the shell, wherein the elastic locking buckle is inserted into the locking hole and engaged with the locking hole to lock the second housing to the shell.

[0045] According to a further exemplary embodiment of the present invention, an opening is formed in the second base of the second housing through which the thermal pad can be passed, and a window is formed in the shell through which the thermal pad can be passed, wherein the thermal pad is passed through the second base and the shell and is in thermal contact with the battery cell, the upper cover of the battery pack or the busbar.

[0046] In the exemplary embodiments described above according to the present invention, the battery connection module or the temperature sensing module can be replaced separately without having to replace the entire battery connection assembly or the entire battery connection system. Therefore, the present invention can save on maintenance and repair costs. Furthermore, the present invention does not require expensive flexible printed circuit boards, but only cost-effective ribbon cables, thus significantly reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The above-mentioned and other features of the present invention will become clearer through the detailed description of exemplary embodiments with reference to the accompanying drawings, in which: Fig. 1 shows an illustrative perspective view of a battery connection system according to an exemplary embodiment of the present invention; Fig. 2 shows an illustrative, partially enlarged view of a battery connection system according to an exemplary embodiment of the present invention; Fig. Figure 3 shows an illustrative perspective view of a battery connection module according to an exemplary embodiment of the present invention, wherein the first upper cover is in a closed position; Fig. Figure 4 shows an illustrative perspective view of a battery connection module according to an exemplary embodiment of the present invention, wherein the first upper cover is in an open position; Fig. Figure 5 shows an illustrative exploded view of a battery connection module according to an exemplary embodiment of the present invention; Fig. Figure 6 shows a cross-sectional view of a battery connection module according to an exemplary embodiment of the present invention, wherein the first housing is not shown; Fig. Figure 7 shows an illustrative perspective view of the first connection and the wires of a battery connection module according to an exemplary embodiment of the present invention; Fig. Figure 8 shows an illustrative perspective view of the first housing of a battery connection module according to an exemplary embodiment of the present invention, wherein the first upper cover is in an open position; Fig. Figure 9 shows an illustrative perspective view of a temperature sensing module according to an exemplary embodiment of the present invention in a top view; Fig. Figure 10 shows an illustrative perspective view of a temperature sensing module according to an exemplary embodiment of the present invention from below; Fig. Figure 11 shows an illustrative exploded view of a temperature sensing module according to an exemplary embodiment of the present invention; Fig. Figure 12 shows an illustrative perspective view of a temperature sensing module according to an exemplary embodiment of the present invention, wherein the second housing is not shown; Fig. Figure 13 shows an illustrative perspective view of a battery connection module according to a further exemplary embodiment of the present invention, wherein the first upper cover is in a closed position; Fig. Figure 14 shows an illustrative perspective view of a battery connection module according to a further exemplary embodiment of the present invention, wherein the first upper cover has been removed; Fig. 15 shows an illustrative exploded view of a battery connection module according to a further exemplary embodiment of the present invention; and Fig. Figure 16 shows an illustrative exploded view of a connector of a battery connection module according to a further exemplary embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EXECUTIONS OF THE INVENTION

[0048] Exemplary embodiments of the present disclosure are described in detail below with reference to the accompanying drawings, where the same reference numerals denote the same elements. However, the present disclosure can be implemented in many different forms and should not be considered as limited to the embodiment set forth herein; rather, these embodiments are provided so that the present disclosure is complete and comprehensive and the concept of the disclosure is fully conveyed to those skilled in the art.

[0049] The following detailed description presents numerous specific details for the purpose of explanation, in order to provide a thorough understanding of the disclosed embodiments. However, it is obvious that one or more embodiments can also be realized without these specific details. In other cases, known structures and devices are shown schematically to simplify the drawing.

[0050] According to a general concept of the present invention, a battery connection module is provided. The battery connection module comprises: a busbar used for the electrical connection to a battery cell; and a connector installed on the busbar to electrically connect the busbar to a wire of a ribbon cable. The connector comprises: a first housing; and a first terminal arranged in the first housing. The base of the first terminal is exposed from the base of the first housing and welded to the busbar. The first terminal has a wire clamping structure used for clamping the wire for the electrical connection.

[0051] According to a further general concept of the present invention, a battery connection arrangement is provided. The battery connection arrangement comprises: a ribbon cable with at least one series of wires; and the above-mentioned battery connection module, wherein the wire clamping structure of the first terminal clamps a corresponding wire of the ribbon cable.

[0052] According to a further general concept of the present invention, a battery connection module is provided.

[0053] The battery connection module comprises: a busbar used for the electrical connection to a battery cell; and a connector installed on the busbar to electrically connect the busbar to a wire of a ribbon cable. The connector comprises: a first housing; a first terminal located within the first housing; a second terminal located within the first housing; and a fuse installed within the first housing and connected in series between the first and second terminals. The base of the first terminal is exposed and welded to the busbar, while the second terminal has a wire clamp used to clamp the wire for the electrical connection.

[0054] According to a further general concept of the present invention, a battery connection arrangement is provided. The battery connection arrangement comprises: a ribbon cable with at least one series of wires; and the above-mentioned battery connection module, wherein the wire clamping structure of the second terminal clamps a corresponding wire of the ribbon cable.

[0055] According to a further general concept of the present invention, a battery connection system is provided. The battery connection system comprises: the above-mentioned battery connection arrangement; and a shell on which the battery connection arrangement is installed.

[0056] Fig. Figure 1 shows an illustrative perspective view of a battery connection system according to an exemplary embodiment of the present invention; Fig. Figure 2 shows an illustrative, partially enlarged view of a battery connection system according to an exemplary embodiment of the present invention; Fig. Figure 3 shows an illustrative perspective view of a battery connection module 100 according to an exemplary embodiment of the present invention, wherein the first upper cover 12 is in a closed position; Fig. Figure 4 shows an illustrative perspective view of a battery connection module 100 according to an exemplary embodiment of the present invention, wherein the first upper cover 12 is in an open position; Fig. Figure 5 shows an illustrative exploded view of a battery connection module 100 according to an exemplary embodiment of the present invention; Fig. Figure 6 shows a cross-sectional view of a battery connection module 100 according to an exemplary embodiment of the present invention, wherein the first housing 10 is not shown; Fig. Figure 7 shows an illustrative perspective view of the first connection 13 and the wire 40 of the battery connection module 100 according to an exemplary embodiment of the present invention; Fig. Figure 8 shows an illustrative perspective view of the first housing 10 of the battery connection module 100 according to an exemplary embodiment of the present invention, wherein the first upper cover 12 is in an open position.

[0057] As in the Fig. Figures 1 to 8 show an exemplary embodiment of the present invention, namely a battery connection module 100. The battery connection module 100 comprises a busbar 2 and a connector 1. The busbar 2 serves to electrically connect a battery cell (not shown) to the battery pack. The connector 1 is installed on the busbar 2 to electrically connect the busbar 2 to a wire 40 of a ribbon cable 4.

[0058] As in the Fig. As shown in Figures 1 to 8, the connector 1 in the illustrated embodiment comprises a first housing 10 and a first terminal 13. The first terminal 13 is arranged in the first housing 10. The base of the first terminal 13 is exposed from the base of the first housing 10 and welded to the busbar 2.

[0059] The first terminal 13 has a wire clamp structure 130, which is used to clamp the wire 40 for the electrical connection with the wire 40. As shown in the Fig. As shown in Figures 1 to 8, the wire clamping structure 130 in the illustrated embodiment comprises a pair of elastic arms 132, and the wire 40 is designed to be clamped between the pair of elastic arms 132.

[0060] A first guide ramp 132a is formed on the inside of the end of a pair of elastic arms 132 to guide the wire 40 which is to be inserted between the pair of elastic arms 132.

[0061] As in the Fig. As shown in Figures 1 to 8, the first connection 13 in the illustrated embodiment also has a first base plate 131 which is connected to the elastic arm 132 which is exposed from the bottom of the first housing 10 and is welded to the busbar 2.

[0062] As in the Fig. As shown in Figures 1 to 8, in the embodiment shown a sealing means 19 is provided in the first housing 10, which covers the first base plate 131 of the first connection 13 to prevent the weld area of ​​the first base plate 131 from oxidizing.

[0063] As in the Fig. As shown in Figures 1 to 8, the first terminal 13 in the illustrated embodiment has two wire clamping structures 130 which are spaced apart opposite each other in the longitudinal direction of the first housing 10, and both wire clamping structures 130 clamp the wire 40 simultaneously.

[0064] As in the Fig. As shown in Figures 1 to 8, the first base plate 131 in the illustrated embodiment has a front and back side opposite each other in the longitudinal direction, and two wire clamping structures 130 are each connected to the front and back side of the first base plate 131.

[0065] As in the Fig. As shown in Figures 1 to 8, in the illustrated embodiment a first positioning bushing 13a is formed on the first base plate 131, and a first positioning projection 2a is formed on the busbar 2. The first positioning projection 2a engages in the first positioning bushing 13a to position the first terminal 13 on the busbar 2.

[0066] As in the Fig. As shown in Figures 1 to 8, the first housing 10 in the illustrated embodiment comprises a first base 11 and a first upper cover 12. The first base 11 has an upper opening. The first upper cover 12 is installed on the upper opening of the first base 11. The first terminal 13 is mounted in the first base 11, and an opening is formed in the bottom of the first base 11 to expose the bottom of the first terminal 13. Slotted holes 11a are formed in the front and rear side walls of the first base 11 to allow the wire 40 to pass through them.

[0067] As in the Fig. As shown in Figures 1 to 8, in the illustrated embodiment a convex rib 12a, corresponding to the slot 11a in the first base 11, is formed on the first upper cover 12. The convex rib 12a is suitable for insertion into the slot 11a in order to press and hold the wire 40 in the wire clamping structure 130 of the first terminal 13.

[0068] As in the Fig. As shown in Figures 1 to 8, in the illustrated embodiment, one side of the first upper cover 12 and one side of the first base 11 are rotatably connected to each other, so that the first upper cover 12 can be opened and closed relative to the first base 11. When the first upper cover 12 is rotated into the closed position, the convex rib 12a presses the wire 40 into the wire clamping structure 130 of the first terminal 13 and holds it there.

[0069] As in the Fig. As shown in Figures 1 to 8, in the illustrated embodiment a buckle 12b is formed on the first upper cover 12, and a projection 11b is formed on the first base 11. The projection 11b engages in the snap slot 12c on the buckle 12b to lock the first upper cover 12 in the closed position.

[0070] As in the Fig. As shown, in the illustrated embodiment, the first housing 10 is an integral injection-molded part and further comprises a flexible connecting part 101. The flexible connecting part 101 is attached between the first upper cover 12 and the first base 11, allowing the first upper cover 12 to be opened and closed relative to the first base 11.

[0071] As in the Fig. As shown in Figures 1 to 8, in the illustrated embodiment a positioning column 11d is formed on the bottom surface of the first base 11, and a positioning hole 2d is formed in the busbar 2. The positioning column 11d engages with the positioning hole 2d to position the first housing 10 on the busbar 2.

[0072] As in the Fig. Figures 1 to 8 show a further exemplary embodiment of the present invention, which also discloses a battery connection arrangement. The battery connection arrangement comprises a ribbon cable 4 and the previously mentioned battery connection module 100. The ribbon cable 4 comprises at least one series of wires 40.

[0073] The wire clamping structure 130 of the first terminal 13 of the battery connection module 100 clamps a corresponding wire 40 of the ribbon cable 4. As shown in the Fig. As shown in Figures 1 to 8, the battery connection arrangement in the illustrated embodiment comprises several battery connection modules 100.

[0074] The wire clamping structure 130 of the first connection 13 of several battery connection modules 100 clamps several wires 40 of the ribbon cable 4. Fig. Figure 13 shows an illustrative perspective view of a battery connection module 100 according to a further exemplary embodiment of the present invention, wherein the first upper cover 12 is in a closed position.

[0075] Fig. Figure 14 shows an illustrative perspective view of a battery connection module 100 according to a further exemplary embodiment of the present invention, wherein the first upper cover 12 has been removed; Fig. Figure 15 shows an illustrative exploded view of a battery connection module 100 according to a further exemplary embodiment of the present invention; Fig. Figure 16 shows an illustrative exploded view of the connector of the battery connection module 100 according to a further exemplary embodiment of the present invention.

[0076] As in the Fig. 1 to 2 and Fig. Figures 13 to 16 show a further exemplary embodiment of the present invention, also comprising a battery connection module 100. The battery connection module 100 includes a busbar 2 and a connector 1. The busbar 2 serves for electrical connection to a battery cell. The connector 1 is installed on the busbar 2 to electrically connect the busbar 2 to a wire 40 of a ribbon cable 4.

[0077] As in the Fig. 1 to 2 and Fig. As shown in Figures 13 to 16, the connector 1 in the illustrated embodiment comprises a first housing 10, a first terminal 13, a second terminal 15, and a fuse 14. The first terminal 13 is located in the first housing 10. The second terminal 15 is also located in the first housing 10. The fuse 14 is located in the first housing 10 and is connected in series between the first terminal 13 and the second terminal 15. The base of the first terminal 13 is exposed from the base of the first housing 10 and welded to the busbar 2. The second terminal 15 has a wire clamping structure 130, which is used to clamp the wire 40 for the electrical connection.

[0078] As in the Fig. 1 to 2 and Fig. As shown in Figures 13 to 16, the wire clamping structure 130 in the illustrated embodiment comprises a pair of elastic arms 132, and the wire 40 is designed to be clamped between the pair of elastic arms 132. A first guide chamfer 132a is formed on the inside of the end of a pair of elastic arms 132 to guide the wire 40, which is to be inserted between the pair of elastic arms 132.

[0079] As in the Fig. 1 to 2 and Fig. As shown in Figures 13 to 16, in the illustrated embodiment, the first terminal 13 and the second terminal 15 each have a conductor clamping structure 150. The conductor clamping structures 150 of the first terminal 13 and the second terminal 15 each clamp the first two conductors 141 of the fuse 14, so that the fuse 14 is connected in series between the first terminal 13 and the second terminal 15.

[0080] As in the Fig. 1 to 2 and Fig. As shown in Figures 13 to 16, the conductor clamping structure 150 in the illustrated embodiment comprises a pair of cantilever parts 152, and the first terminal 141 of the fuse 14 is designed to be clamped between the pair of cantilever parts 152. A second guide chamfer 152a is formed on the inside of the end of a pair of cantilever parts 152 to guide the first conductor wire 141 of the fuse 14 so that it is inserted between the pair of cantilever parts 152.

[0081] As in the Fig. 1 to 2 and Fig. As shown in Figures 13 to 16, in the illustrated embodiment the first terminal 13 also has a first base plate 131, which is connected to its conductor clamping structure 150. The first base plate 131 is exposed from the bottom of the first housing 10 and welded to the busbar 2. The second terminal 15 also has a second base plate 151, which is connected to its wire clamping structure 130 and its conductor clamping structure 150.

[0082] As in the Fig. 1 to 2 and Fig. As shown in Figures 13 to 16, the second terminal 15 in the illustrated embodiment has two wire clamping structures 130 which are spaced apart opposite each other in the longitudinal direction of the first housing 10, and the two wire clamping structures 130 of the second terminal 15 simultaneously clamp the wire 40.

[0083] As in the Fig. 1 to 2 and Fig. As shown in Figures 13 to 16, the first terminal 13 in the illustrated embodiment has two conductor clamping structures 150 arranged opposite each other in the longitudinal direction of the first housing 10. The two conductor clamping structures 150 of the first terminal 13 simultaneously clamp one first terminal 141 of the fuse 14. The second terminal 15 has two conductor clamping structures 150 arranged opposite each other in the longitudinal direction of the first housing 10, and the two conductor clamping structures 150 of the second terminal 15 simultaneously clamp the other first terminal 141 of the fuse 14.

[0084] As in the Fig. As shown in Figures 1 to 2 and 13 to 16, the first base plate 131 in the illustrated embodiment has longitudinally opposite front and back faces, and the two conductor clamping structures 150 of the first terminal 13 are each connected to the front and back faces of the first base plate 131. The second base plate 151 has longitudinally opposite front and back faces, and the two conductor clamping structures 150 of the second terminal 15 are each connected to the front and back faces of the second base plate 151. The two wire clamping structures 130 of the second terminal 15 are each connected to the front and back faces of the second base plate 151 and are spaced apart in the transverse direction of the first housing 10 from the wire clamping structure 150 of the second terminal 15.

[0085] As in the Fig. 1 to 2 and Fig. As shown in Figures 13 to 16, in the illustrated embodiment a first positioning bushing 13a is formed in the first base plate 131, and a first positioning projection 2a is formed on the busbar 2. The first positioning projection 2a engages in the first positioning bushing 13a to position the first terminal 13 on the busbar 2.

[0086] As in the Fig. 1 to 2 and Fig. As shown in Figures 13 to 16, the first housing 10 in the illustrated embodiment comprises a first base 11 and a first upper cover 12. The first base 11 has an upper opening. The first upper cover 12 is installed on the upper opening of the first base 11. The first terminal 13 and the second terminal 15 are arranged in the first base 11, and an opening is formed in the bottom of the first base 11 to expose the bottom of the first terminal 13.

[0087] As in the Fig. 1 to 2 and Fig. As shown in Figures 13 to 16, in the illustrated embodiment a transverse partition 113 is formed in the first base 11 to divide the interior of the first base 11 into a front chamber and a rear chamber 112, and a longitudinal partition 114 is formed to divide the front chamber into a left chamber 11a and a right chamber 111b. The first terminal 13 and the second terminal 15 are arranged in the right chamber 111b and the left chamber 111a of the first base 11, respectively, and the body 140 of the fuse 14 is arranged in the rear chamber 112 of the first base 11. A first wire groove 11e, through which the wire 40 can be passed, and a first wire groove 11f, through which the first conductor 141 of the fuse 14 can be passed, are each formed in the front side wall and the transverse wall 113 of the first base 11.

[0088] As in the Fig. 1 to 2 and Fig. As shown in Figures 13 to 16, in the illustrated embodiment there is a positioning column 11d (see Fig. 3 to 8) formed on the base surface of the first base 11, and a positioning hole 2d (see Fig. 3 to 8) is formed in the busbar 2. The positioning column 11d will engage with the positioning hole 2d to position the first housing 10 on the busbar 2.

[0089] As in the Fig. 1 to 2 and Fig. Figures 13 to 16 show a further exemplary embodiment of the present invention, which also discloses a battery connection arrangement. The battery connection arrangement comprises a flat ribbon cable 4 and a battery connection module 100, as shown in the figures. Fig. Figures 13 to 16 show the ribbon cable 4 comprising at least one set of wires 40. The wire clamping structure 130 of the second terminal 15 of the battery connection module 100 clamps a corresponding wire 40 of the ribbon cable 4.

[0090] As in the Fig. 1 to 2 and Fig. As shown in Figures 13 to 16, the battery connection arrangement in the illustrated embodiment comprises several battery connection modules 100, and the wire clamping structures 130 of the second terminals 15 of the several battery connection modules 100 each clamp several wires 40 of the ribbon cable 4.

[0091] Fig. Figure 9 shows an illustrative perspective view of the temperature sensing module 5 according to an exemplary embodiment of the present invention when viewed from above; Fig. Figure 10 shows an illustrative perspective view of the temperature sensing module 5 according to an exemplary embodiment of the present invention when viewed from below; Fig. Figure 11 shows an illustrative exploded view of a temperature sensing module 5 according to an exemplary embodiment of the present invention; Fig. Figure 12 shows an illustrative perspective view of a temperature sensing module 5 according to an exemplary embodiment of the present invention, wherein the second housing 50 is not shown.

[0092] As in the Fig. Figures 1 to 16 show a further exemplary embodiment of the present invention, which also discloses a battery connection system. The battery connection system comprises the aforementioned battery connection arrangement and a shell 3. The battery connection arrangement is installed on the shell 3.

[0093] As in the Fig. As shown in Figures 1 to 16, the battery connection system in the illustrated embodiment further comprises a temperature sensing module 5. The temperature sensing module 5 is installed on the shell 3 to detect the temperature of the battery.

[0094] As in the Fig. As shown in Figures 1 to 16, the temperature sensing module 5 in the illustrated embodiment comprises a second housing 50, two terminals 52, a temperature sensor 53, and a thermal pad 54. The two terminals 52 are arranged in the second housing 50 and each has a first clamping structure 521. The temperature sensor 53 is installed in the second housing 50 and connected in series between the two terminals 52. The thermal pad 54 is installed in the second housing 50 and is in thermal contact with the temperature sensor 53. The first clamping structure 521 of each of the two terminals 52 clamps the two wires 40 of the ribbon cable 4 to establish an electrical connection.The thermal pad 54 is exposed from the bottom of the second housing 50 and serves to establish thermal contact with the battery cell, the top cover of the battery pack or the busbar 2 in order to transfer the heat from the battery cell, the top cover of the battery pack or the busbar 2 to the temperature sensor 53.

[0095] As in the Fig. As shown in Figures 1 to 16, in the embodiment shown, the two terminals 52 each have a second clamping structure 522, and the second clamping structures 522 of the two terminals 52 each clamp the two second leads 531 of the temperature sensor 53, so that the temperature sensor 53 is connected in series between the two terminals 52.

[0096] As in the Fig. As shown in Figures 1 to 16, the terminal 52 in the illustrated embodiment has two first clamping structures 521, which are spaced apart opposite each other in the longitudinal direction of the second housing 50 in order to clamp the wire 40 simultaneously. The terminal 52 has two second clamping structures 522, which are arranged opposite each other in the longitudinal direction of the second housing 50 in order to clamp the second lead 531 of the temperature sensor 53 simultaneously.

[0097] As in the Fig. As shown in Figures 1 to 16, the first clamping structure 521 of the terminal 52 in the illustrated embodiment comprises a pair of first elastic arms 521a, and the wire 40 is clamped between the pair of first elastic arms 521a. The second clamping structure 522 of the terminal 52 comprises a pair of second elastic arms 522a, and the second lead 531 of the temperature sensor 53 is clamped between the pair of second elastic arms 522a.

[0098] As in the Fig. As shown in Figures 1 to 16, the connector 52 in the illustrated embodiment has a base plate 520 with a front and a back side that face each other longitudinally along the second housing 50. The two first clamping structures 521 of the connector 52 are each connected to the front and back sides of the base plate 520. The two second clamping structures 522 of the connector 52 are each connected to the front and back sides of the base plate 520, and the first clamping structure 521 and the second clamping structure 522 of the connector 52 are spaced apart from each other transversely along the second housing 50.

[0099] As in the Fig. As shown in Figures 1 to 16, the second housing 50 in the illustrated embodiment comprises a second base 51 and a second upper cover 55. The second base 51 is formed with an upper opening. The second upper cover 55 is installed on the upper opening of the second base 51. A first partition 511 is formed in the second base 51 to divide the interior of the second base 51 into a front chamber and a rear chamber 502, and a second partition 512 is formed to divide the front chamber into a left chamber 501a and a right chamber 501b. Two terminals 52 are arranged in the left chamber 501a and the right chamber 501b of the second base 51, respectively, and the main body 530 of the temperature sensor 53 and the thermal pad 54 are arranged in the rear chamber 502 of the second base 51.On the front wall of the second base 51 and the first partition 511, a second wire groove 51a, through which the wire 40 can be passed, and a second wire groove 51b, through which the second line 531 of the temperature sensor 53 can be passed, are formed.

[0100] As in the Fig. As shown in Figures 1 to 16, in the illustrated embodiment an elastic locking buckle 51c is formed on the bottom of the second base 51, and a locking hole (not shown) is formed in the shell 3. The elastic locking buckle 51c is inserted into the locking hole and engaged with it to lock the second housing 50 to the shell 3.

[0101] As in the Fig.As shown in Figures 1 to 16, in the illustrated embodiment an opening through which the thermal pad 54 can pass is formed on the second base 51 of the second housing 50, and a window through which the thermal pad 54 can pass is formed on the shell 3. The thermal pad 54 extends through the second base 51 and the shell 3 and is in thermal contact with the battery cell, the upper cover of the battery pack, or the busbar 2.

[0102] Experts in this field should be aware that the embodiments described above are for illustrative purposes only and are not limiting. For example, experts in this field can make many modifications to the embodiments described above, and various features described in different embodiments can be freely combined without conflicting configurations or principles.

[0103] Although several exemplary embodiments have been shown and described, it will be clear to the person skilled in the art that various changes or modifications can be made to these embodiments without departing from the principles and spirit of the disclosure, the scope of which is defined in the claims and their equivalents.

[0104] As used herein, an element referred to in the singular and introduced by the word "a" or "an" should be understood as not excluding the plural of those elements or steps, unless such exclusion is expressly stated. Furthermore, references to "an embodiment" of the present invention should not be understood as excluding the existence of other embodiments that also have the aforementioned features. Unless expressly stated otherwise, embodiments that "comprise" or "have" an element or a plurality of elements with a particular property may include additional elements that do not have that property. QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] CN 202411354895.9

[0001]

Claims

[1] A battery interconnection module comprising: a busbar (2) used for electrical connection to a battery cell; and a connector (1) installed on the busbar (2) to electrically connect the busbar (2) to a wire (40) of a ribbon cable (4), wherein the connector (1) comprises: a first case (10); and a first connection (13) which is arranged in the first housing (10), wherein the bottom of the first connection (13) is exposed from the bottom of the first housing (10) and welded to the busbar (2), wherein the first terminal (13) has a wire clamping structure (130) which is used to clamp the wire (40) for electrical connection with the wire (40). [2] The battery connection module according to claim 1, wherein the wire clamping structure (130) comprises a pair of elastic arms (132) and the wire (40) is designed to be clamped between the pair of elastic arms (132); wherein a first guiding ramp (132a) is formed on the inside of the end of the pair of elastic arms (132) to guide the wire (40) for insertion between the pair of elastic arms (132). [3] The battery connection module according to claim 2, wherein the first connection (13) also has a first base plate (131) which is connected to the elastic arm (132) which is exposed from the bottom of the first housing (10) and is welded to the busbar (2). [4] The battery connection module according to claim 3, wherein a sealing means (19) is provided in the first housing (10) which covers the first base plate (131) of the first terminal (13) to prevent oxidation of the weld part of the first base plate (131). [5] The battery connection module according to claim 3, wherein the first connection (13) has two wire clamping structures (130) spaced apart opposite each other in the longitudinal direction of the first housing (10), and the two wire clamping structures (130) clamp the wire (40) simultaneously. [6] The battery connection module according to claim 5, wherein the first base plate (131) has two opposing front and back sides in the longitudinal direction and the two wire clamping structures (130) are each connected to the front and back of the first base plate (131). [7] The battery connection module according to claim 3, wherein a first positioning socket (13a) is formed in the first base plate (131) and a first positioning projection (2a) is formed on the busbar (2), wherein the first positioning projection (2a) engages with the first positioning socket (13a) to position the first connection (13) on the busbar (2) (2). [8] The battery connection module according to claim 1, the first housing (10) comprises: a first base (11) having an upper opening; and a first upper cover (12) which is installed on the upper opening of the first base (11), wherein the first terminal (13) is arranged in the first base (11), an opening is formed on the bottom of the first base (11) so that the bottom of the first terminal (13) can be exposed through the opening, and slotted holes (11a) are formed in the front and rear side wall of the first base (11) so that the wire (40) can be passed through them. [9] The battery connection module according to claim 8, wherein a convex rib (12a) corresponding to the slotted hole (11a) in the first base (11) is formed on the first upper cover (12), and the convex rib (12a) is designed to be inserted into the slotted hole (11a) to press and hold the wire (40) in the wire clamping structure (130) of the first terminal (13). [10] The battery connection module according to claim 9, wherein one side of the first upper cover (12) and one side of the first base (11) are rotatably connected to each other, so that the first upper cover (12) can be opened and closed relative to the first base (11); wherein, when the first upper cover (12) is rotated into the closed position, the convex rib (12a) presses and holds the wire (40) in the wire clamping structure (130) of the first terminal (13). [11] The battery connection module according to claim 10, wherein a buckle (12b) is formed on the first upper cover (12) and a projection (11b) is formed on the first base (11), wherein the projection (11b) engages in the snap slot (12c) on the buckle (12b) to lock the first upper cover (12) in the closed position. [12] The battery connection module according to claim 10, wherein the first housing (10) is an integral injection-molded part and further comprises a flexible connecting part (101) that is connected between the first upper cover (12) and the first base (11) so that the first upper cover (12) can be rotated relative to the first base (11) to open or close it. [13] The battery connection module according to claim 8, wherein a positioning column (11d) is formed on the bottom surface of the first base (11) and a positioning hole (2d) is formed in the busbar (2), wherein the positioning column (11d) engages with the positioning hole (2d) to position the first housing (10) on the busbar (2). [14] A battery connection arrangement comprising: a ribbon cable (4) with at least one row of wires (40); and the battery connection module (100) according to one of claims 1 to 13, wherein the wire clamping structure (130) of the first connection (13) clamps a corresponding wire (40) of the ribbon cable (4). [15] The battery connection arrangement according to claim 14, wherein the battery connection arrangement comprises several battery connection modules (100) and the wire clamping structures (130) of the first terminals (13) of the several battery connection modules (100) each clamp several wires (40) of the ribbon cable (4). [16] A battery connection system comprising: the battery connection arrangement according to one of claims 14 or 15; and a tray (3) on which the battery connection assembly is installed. [17] The battery connection system according to claim 30, further comprising: a temperature sensing module (5) which is installed on the shell (3) to sense the temperature of a battery.

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