A battery connection system for energy storage battery modules

Abstract

This specification relates to the field of battery module technology, specifically a battery connection system for energy storage battery modules, comprising: a blister bracket with two rows of aluminum strip mounting slots along its length; aluminum strips, which are assembled and connected to the mounting slots; voltage acquisition terminals, one voltage acquisition terminal connected to one aluminum strip; temperature acquisition terminals, one temperature acquisition terminal connected to one aluminum strip; and a conductive bus, arranged along the length of the blister bracket, including a first conductive bus and a second conductive bus, the first conductive bus connecting to the voltage acquisition terminals on the aluminum strips in the first row of mounting slots. This battery connection system acquires and transmits voltage and temperature data by using the first and second conductive buses, along with the temperature and voltage acquisition terminals, avoiding the accumulation of numerous acquisition wires on the top of the battery module, resulting in a clean and aesthetically pleasing top surface.

Description

Technical Field

[0001] The embodiments in this specification relate to the field of battery module technology, specifically a battery connection system for energy storage battery modules. Background Technology

[0002] A Cell Connection System (CCS) is a key component used to connect individual battery cells to form larger battery modules. It plays a crucial role in energy storage systems, electric vehicles, and other applications requiring high-capacity batteries. It not only ensures efficient current transfer between battery cells but also integrates various functions to improve the safety and reliability of the entire battery module.

[0003] Existing battery connection systems collect voltage and temperature data from battery cells via voltage and temperature data acquisition lines and transmit the collected data to the battery management system. However, when the number of battery cells in a battery module is large, the number of voltage and temperature data acquisition lines in the battery connection system also increases. This results in a large number of acquisition wires accumulating in the limited space at the top of the battery module, leading to messy and unsightly wiring that can even interfere with the normal operation of other components. Utility Model Content

[0004] This specification addresses the shortcomings of existing technologies by proposing a battery connection system for energy storage battery modules, comprising:

[0005] The blister forming bracket has two rows of aluminum foil mounting slots along its length.

[0006] Aluminum strip, assembled and connected with aluminum strip mounting slot;

[0007] Voltage acquisition terminal, one voltage acquisition terminal is connected to one aluminum plate;

[0008] Temperature acquisition terminal, one temperature acquisition terminal is connected to one aluminum plate;

[0009] A conductive busbar is provided along the length of the blister pack bracket. The conductive busbar includes a first conductive busbar and a second conductive busbar. The first conductive busbar is connected to the voltage acquisition terminal and temperature acquisition terminal on the aluminum bar on the first row of aluminum bar mounting slots. The second conductive busbar is connected to the voltage acquisition terminal and temperature acquisition terminal on the aluminum bar on the second row of aluminum bar mounting slots. The first conductive busbar and the second conductive busbar are connected to the battery management system through connecting wires.

[0010] Preferably, each row of aluminum bar mounting slots includes several aluminum bar mounting slots connected in series and one output aluminum bar mounting slot.

[0011] Aluminum tablets include:

[0012] A series aluminum bar, with one series aluminum bar connected to a series aluminum bar mounting slot;

[0013] Output aluminum bar, one output aluminum bar is connected to one output aluminum bar mounting slot.

[0014] Preferably, the tandem aluminum bar mounting groove includes a first mounting half groove and a second mounting half groove; both the first mounting half groove and the second mounting half groove are provided with tandem aluminum bar positioning posts; the tandem aluminum bar includes a first aluminum bar half piece and a second aluminum bar half piece, both of which are provided with tandem aluminum bar half piece positioning holes for assembly and connection with the tandem aluminum bar half piece positioning posts.

[0015] Preferably, the first mounting half-groove is provided with a series aluminum bar directional angle, and the first aluminum bar half-piece is provided with a series aluminum bar directional notch that is assembled and connected with the series aluminum bar directional angle.

[0016] Preferably, the blister bracket has battery cell terminal holes at the corresponding positions of the battery cells in the first and second mounting half slots; the first and second aluminum bar halves are each provided with series aluminum bar welding holes that mate with the battery cell terminal holes.

[0017] Preferably, a bending beam is provided between the first and second aluminum bar halves in series.

[0018] Preferably, the output aluminum bar mounting slot is provided with two output aluminum bar positioning posts; the output aluminum bar is provided with output aluminum bar positioning holes that are assembled and connected with the output aluminum bar positioning posts.

[0019] Preferably, the vacuum forming bracket has a battery cell terminal hole in the output aluminum bar mounting slot corresponding to the battery cell position; the output aluminum bar has an output aluminum bar welding hole that mates with the battery cell terminal hole.

[0020] Preferably, the output aluminum bar also has an aluminum bar overlap area, and the aluminum bar overlap area has an output connection hole.

[0021] Preferably, the blister pack is provided with a row of battery cell explosion-proof valve vent holes between the first conductive busbar and the second conductive busbar, and the row of battery cell explosion-proof valve vent holes is arranged along the length direction of the blister pack.

[0022] Beneficial effects

[0023] The battery connection system of this specification embodiment collects and transmits voltage and temperature data by setting a first conductive bus and a second conductive bus, as well as temperature acquisition terminals and voltage acquisition terminals. This avoids the accumulation of a large number of acquisition wires on the top of the battery module, making the top of the battery module clean and beautiful, and will not affect the normal operation of other components.

[0024] Further or more detailed beneficial effects will be described in conjunction with specific embodiments in the detailed implementation. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the battery connection system in the embodiments of this specification;

[0026] Figure 2 for Figure 1 Top view of the battery connection system;

[0027] Figure 3 This is a top view of the blister packing bracket in the embodiments of this specification;

[0028] Figure 4 This is a schematic diagram of the structure of the series-connected aluminum bars in the embodiments of this specification;

[0029] Figure 5 This is a schematic diagram of the structure of the output aluminum bar sheet in the embodiments of this specification;

[0030] Figure 6 This is a schematic diagram showing the connection between the conductive busbar and the voltage acquisition terminal, temperature acquisition terminal, and battery management system in the embodiments of this specification. Detailed Implementation

[0031] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0032] Example 1:

[0033] like Figure 1 and Figure 2 As shown, this embodiment provides a battery connection system for an energy storage battery module, including:

[0034] The blister packer 100 has two rows of aluminum strip mounting slots along its length. Each row of aluminum strip mounting slots includes several serially connected aluminum strip mounting slots 110 and one output aluminum strip mounting slot 120. The output aluminum strip mounting slots 120 of the first row of aluminum strip mounting slots are positioned opposite to those of the second row of aluminum strip mounting slots.

[0035] This embodiment uses a vacuum-formed bracket 100. Compared with traditional injection-molded or riveted brackets, vacuum forming has better space utilization and lower material consumption, making it suitable for integration needs in narrow spaces.

[0036] Furthermore, the battery connection system of this embodiment also includes:

[0037] An aluminum strip is assembled and connected to the aluminum strip mounting groove. The aluminum strip in this embodiment specifically includes:

[0038] A series aluminum bar 200 is connected to a series aluminum bar mounting slot 110.

[0039] like Figure 3 and Figure 4 As shown, the tandem aluminum bar mounting groove 110 includes a first mounting half-groove and a second mounting half-groove; both the first and second mounting half-groos are provided with tandem aluminum bar positioning posts 111; the tandem aluminum bar 200 includes a first aluminum bar half and a second aluminum bar half, both of which are provided with tandem aluminum bar positioning holes 201 for assembly and connection with the tandem aluminum bar positioning posts 111. The tandem aluminum bar positioning posts 111 are configured to cooperate with the tandem aluminum bar positioning holes 201, and have a positioning function.

[0040] The first installation half-groove is provided with a series aluminum bar directional angle 112, and the first aluminum bar half is provided with a series aluminum bar directional notch 202 that is assembled and connected with the series aluminum bar directional angle 112. The series aluminum bar directional angle 112 and the series aluminum bar directional notch 202 are configured to cooperate and have a directional function.

[0041] The vacuum forming bracket 100 has cell terminal holes 130 at the corresponding cell positions in both the first and second mounting half-grooves; both the first and second aluminum bar halves have series aluminum bar welding holes 203 that mate with the cell terminal holes 130. The cell terminal holes 130 allow the battery cell of the battery unit to contact the series aluminum bar 200. The series aluminum bar welding holes 203 allow the battery cell of the battery unit to be welded and fixed to the series aluminum bar 200.

[0042] When connecting the series aluminum plate 200 to the series aluminum plate mounting groove 110, simply align the series aluminum plate orientation notch 202 of the series aluminum plate 200 with the series aluminum plate orientation angle 112 of the series aluminum plate mounting groove 110, and align the series aluminum plate positioning hole 201 of the series aluminum plate 200 with the series aluminum plate positioning post 111 of the series aluminum plate mounting groove 110. Then, insert the series aluminum plate 200 into the series aluminum plate mounting groove 110, and finally weld the battery cell of the battery unit to the series aluminum plate 200 for fixation.

[0043] In addition, a bending beam 204 is provided between the first and second aluminum bar halves in the series-connected aluminum bar sheet 200. By bending the series-connected aluminum bar sheet 200, it can better adapt to the internal spatial structure of the module, reduce unnecessary volume occupation, and improve the overall space utilization. The bent series-connected aluminum bar sheet 200 can more flexibly connect cells in different positions, ensuring a reasonable distribution of current paths, while enhancing the stability and reliability of the connection. Moreover, this design helps to reduce contact resistance and improve the electrical performance of the battery system.

[0044] Output aluminum bar 300, one output aluminum bar 300 is connected to one output aluminum bar mounting slot 120.

[0045] like Figure 3 and Figure 5 As shown, the output aluminum bar mounting slot 120 is provided with two output aluminum bar positioning posts 121; the output aluminum bar 300 is provided with output aluminum bar positioning holes 301 that are assembled and connected with the output aluminum bar positioning posts 121. The output aluminum bar positioning posts 121 and the output aluminum bar positioning holes 301 are configured to cooperate with each other and have a positioning function.

[0046] The vacuum forming bracket 100 has a cell terminal hole 130 in the output aluminum bar mounting slot 120 corresponding to the cell position; the output aluminum bar 300 has an output aluminum bar welding hole 303 that mates with the cell terminal hole 130. The cell terminal hole 130 allows the cell of the battery unit to contact the output aluminum bar 300. The output aluminum bar welding hole 303 allows the cell of the battery unit to be welded and fixed to the output aluminum bar 300.

[0047] The output aluminum plate 300 is also provided with a polarity mark 302. The polarity marks 302 of the two output aluminum plates 300 need to be "+" and "-". When connecting the output aluminum plate 300 to the output aluminum plate mounting slot 120, simply select the output aluminum plate 300 of the required polarity according to the polarity mark 302, then align the output aluminum plate positioning hole 301 of the output aluminum plate 300 with the output aluminum plate positioning post 121 of the output aluminum plate mounting slot 120, then insert the output aluminum plate 300 into the output aluminum plate mounting slot 120, and finally weld the battery cell of the battery unit to the output aluminum plate 300 for fixation.

[0048] In addition, the output aluminum bar 300 also has an aluminum bar overlap area 304, and the aluminum bar overlap area 304 has an output connection hole 305. The aluminum bar overlap area 304 is nickel-plated. Nickel has good conductivity, and nickel plating can reduce contact resistance and improve current transmission efficiency. At the same time, the nickel plating layer can improve the bonding force between the aluminum bar and other metals, reducing contact problems caused by oxidation. The output connection hole 305 is used for connecting with other battery modules.

[0049] Furthermore, the battery connection system of this embodiment also includes:

[0050] A voltage acquisition terminal 500 is connected to a series aluminum bar 200 or an output aluminum bar 300. The voltage acquisition terminal 500 is welded and fixed to the series aluminum bar 200 or the output aluminum bar 300. The input terminal of the voltage acquisition terminal 500 is connected to a voltage sensor. The voltage sensor is used to acquire the voltage data of the battery cell.

[0051] A temperature acquisition terminal 600 is connected to either a series aluminum bar 200 or an output aluminum bar 300. The temperature acquisition terminal 600 is soldered and fixed to the series aluminum bar 200 or the output aluminum bar 300. The input terminal of the temperature acquisition terminal 600 is connected to a temperature sensor. The temperature sensor is used to acquire temperature data from the battery cell.

[0052] A conductive busbar 400 is arranged along the length of the blister bracket 100. The conductive busbar 400 includes a first conductive busbar and a second conductive busbar. The first conductive busbar is connected to the voltage acquisition terminal 500 and temperature acquisition terminal 600 on the series aluminum bar 200 or output aluminum bar 300 on the first row of aluminum bar mounting slots. The second conductive busbar is connected to the voltage acquisition terminal 500 and temperature acquisition terminal 600 on the series aluminum bar 200 or output aluminum bar 300 on the second row of aluminum bar mounting slots. The first conductive busbar and the second conductive busbar are connected to the battery management system 700 through connecting wires.

[0053] The output of voltage acquisition terminal 500 is connected to conductive bus 400, and the output of temperature acquisition terminal 600 is also connected to conductive bus 400. Voltage acquisition terminal 500 acquires the voltage of the battery cell via a voltage sensor, and then transmits the acquired voltage data to battery management system 700 via conductive bus 400 and connecting wires. Temperature acquisition terminal 600 acquires the temperature of the battery cell via a temperature sensor, and then transmits the acquired temperature data to battery management system 700 via conductive bus 400 and connecting wires.

[0054] In summary, the battery connection system of this embodiment collects voltage data through voltage acquisition terminal 500 and temperature data through temperature acquisition terminal 600. The collected voltage and temperature data are then transmitted to the battery management system 700 through conductive busbar 400 and connecting wires located outside the blister bracket 100. This method eliminates the need for a large number of acquisition wire harnesses, thereby avoiding the accumulation of a large number of acquisition wire harnesses on the top of the battery module. Ultimately, this makes the top of the battery module clean and aesthetically pleasing, and does not affect the normal operation of other components.

[0055] Furthermore, the blister pack 100 is provided with a row of cell explosion-proof valve vent holes 140 between the first conductive busbar and the second conductive busbar, and the row of cell explosion-proof valve vent holes 140 is arranged along the length direction of the blister pack 100. The arrangement of the cell explosion-proof valve vent holes 140 facilitates the venting of the cell expansion valve. Most importantly, the acquisition cable harness will not come into contact with or accumulate on the cell explosion-proof valve vent holes 140, thus not affecting the normal operation of the cell explosion-proof valve.

[0056] The above embodiments are merely descriptions of preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention. The technical content for which protection is sought in the present invention has been fully described in the claims.

Claims

1. A battery connection system for an energy storage battery module, characterized by, include: A vacuum forming bracket (100) is provided with two rows of aluminum foil mounting slots along its length. An aluminum strip is assembled and connected to the aluminum strip mounting groove. A voltage acquisition terminal (500), one of the voltage acquisition terminals (500) being connected to one of the aluminum strips; Temperature acquisition terminal (600), one of the temperature acquisition terminals (600) is connected to one of the aluminum strips; A conductive bus (400) is arranged along the length of the blister bracket (100). The conductive bus (400) includes a first conductive bus and a second conductive bus. The first conductive bus is connected to the voltage acquisition terminal (500) and temperature acquisition terminal (600) on the aluminum strips on the first row of aluminum strip mounting slots. The second conductive bus is connected to the voltage acquisition terminal (500) and temperature acquisition terminal (600) on the aluminum strips on the second row of aluminum strip mounting slots. The first conductive bus and the second conductive bus are connected to the battery management system (700) through connecting wires.

2. The battery connection system of claim 1, wherein, Each row of aluminum bar mounting slots includes several aluminum bar mounting slots connected in series (110) and one output aluminum bar mounting slot (120). The aluminum foil includes: A series aluminum bar (200), one of the series aluminum bar (200) is connected to a series aluminum bar mounting slot (110); Output aluminum bar (300), one of the output aluminum bar (300) is connected to one of the output aluminum bar mounting slots (120).

3. The battery connection system of claim 2, wherein, The series aluminum bar mounting groove (110) includes a first mounting half groove and a second mounting half groove; both the first mounting half groove and the second mounting half groove are provided with series aluminum bar positioning posts (111); the series aluminum bar (200) includes a first aluminum bar half piece and a second aluminum bar half piece, and both the first aluminum bar half piece and the second aluminum bar half piece are provided with series aluminum bar positioning holes (201) that are assembled and connected to the series aluminum bar positioning posts (111).

4. The battery connection system of claim 3, wherein, The first mounting half-groove is provided with a series aluminum bar orientation angle (112), and the first aluminum bar half-piece is provided with a series aluminum bar orientation notch (202) that is assembled and connected with the series aluminum bar orientation angle (112).

5. The battery connection system of claim 3, wherein, The vacuum forming bracket (100) has battery cell terminal holes (130) at the positions of the battery cells in the first and second mounting half slots; the first and second aluminum bar half plates are provided with series aluminum bar welding holes (203) that connect with the battery cell terminal holes (130).

6. The battery connection system of claim 3, wherein, The series aluminum bar sheet (200) has a bending beam (204) between the first aluminum bar half sheet and the second aluminum bar half sheet.

7. The battery connection system of claim 2, wherein, The output aluminum bar mounting groove (120) is provided with two output aluminum bar positioning posts (121); the output aluminum bar (300) is provided with an output aluminum bar positioning hole (301) that is assembled and connected to the output aluminum bar positioning posts (121).

8. The battery connection system of claim 7, wherein, The vacuum forming bracket (100) has a battery cell terminal hole (130) in the output aluminum plate mounting groove (120) corresponding to the battery cell position; the output aluminum plate (300) has an output aluminum plate welding hole (303) that connects with the battery cell terminal hole (130).

9. The battery connection system of claim 7, wherein, The output aluminum bar plate (300) is also provided with an aluminum bar overlap area (304), and the aluminum bar overlap area (304) is provided with an output connection hole (305).

10. The battery connection system of claim 1, wherein, The blister bracket (100) has a row of cell explosion-proof valve vent holes (140) between the first conductive busbar and the second conductive busbar, and the row of cell explosion-proof valve vent holes (140) is arranged along the length direction of the blister bracket (100).

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