Information acquisition device of battery device, battery device and power utilization device

Abstract

The invention discloses an information acquisition device of a battery device, the battery device and a power utilization device, and relates to the technical field of battery devices, the battery device comprises a plurality of battery monomers, the information acquisition device comprises an isolation plate, a plurality of electric connection bars, a voltage acquisition mechanism and a wire harness structure, the plurality of electric connection bars are arranged on the isolation plate, and the voltage acquisition mechanism is arranged on the isolation plate. The electric connection bars are used for being electrically connected with the corresponding single batteries, the voltage acquisition mechanism comprises a plurality of voltage acquisition parts, each voltage acquisition part comprises a voltage acquisition piece and a PCB (Printed Circuit Board), the voltage acquisition pieces are fixedly connected with the PCBs, each electric connection bar is connected with the voltage acquisition piece of at least one voltage acquisition part, and the wiring harness structure is connected with the PCBs of the plurality of voltage acquisition parts. According to the information acquisition device of the battery device provided by the embodiment of the invention, the influence on the overall structure of the information acquisition device when a certain battery monomer swells and deforms can be reduced, the probability of overall deformation of the information acquisition device can be reduced, and the service life of the information acquisition device can be prolonged.

Description

Technical Field

[0001] This invention relates to the field of battery device technology, and in particular to an information acquisition device for a battery device, a battery device, and an electrical device. Background Technology

[0002] In related technologies, existing battery device information acquisition devices typically use a single flexible circuit board to collect voltage information from the battery device. During long-term use, individual battery cells may partially expand and exert forces on the flexible circuit board. The larger the size of the flexible circuit board, the lower its rigidity, making it prone to deformation under stress and affecting the lifespan of the information acquisition device. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide an information acquisition device for a battery device that helps reduce the impact of expansion and deformation of a single battery cell on the overall structure of the information acquisition device, reduces the probability of overall deformation of the information acquisition device, and extends the service life of the information acquisition device.

[0004] The present invention also proposes a battery device using the above-described information acquisition device.

[0005] The present invention also proposes an electrical device using the above-described battery device.

[0006] According to a first aspect of the present invention, an information acquisition device for a battery device includes a plurality of battery cells. The information acquisition device includes: an isolation plate, a plurality of electrical connection bars, a voltage acquisition mechanism, and a wiring harness structure. The plurality of electrical connection bars are disposed on the isolation plate and are used to electrically connect to the corresponding battery cells. The voltage acquisition mechanism includes a plurality of voltage acquisition sections, each voltage acquisition section including a voltage acquisition chip and a PCB board. The voltage acquisition chip and the PCB board are fixedly connected. Each electrical connection bar is connected to the voltage acquisition chip of at least one voltage acquisition section. The wiring harness structure is connected to the PCB board of the plurality of voltage acquisition sections.

[0007] According to the information acquisition device of the battery device in the embodiment of this application, when a certain battery cell expands and deforms and applies a force to the corresponding electrical connector, the force of the expanded and deformed battery cell can act on the corresponding voltage acquisition unit. By setting multiple voltage acquisition units, and each voltage acquisition unit includes a voltage acquisition chip and a PCB board, it is beneficial to reduce the impact of the expansion and deformation of a certain battery cell on the overall structure of the information acquisition device, to reduce the probability of overall deformation of the information acquisition device, and to extend the service life of the information acquisition device.

[0008] According to some embodiments of the present invention, the PCB board and the corresponding voltage acquisition chip are stacked, a first pad is formed on the side of the PCB board facing the voltage acquisition chip, a second pad is formed on the side of the PCB board away from the voltage acquisition chip, a fuse is connected between the first pad and the second pad, and the second pad is connected to the wire harness structure.

[0009] According to some embodiments of the present invention, the information acquisition device further includes: a mounting base, at least one of the voltage acquisition units is correspondingly provided with the mounting base, the mounting base is formed with a first mounting groove, at least a portion of the voltage acquisition unit is disposed in the first mounting groove, the mounting base is also formed with a first wiring groove, the first wiring groove is located on one side of the first mounting groove and communicates with the first mounting groove, the first wiring groove extends along the arrangement direction of the first wiring groove and the first mounting groove, and the end of the first wiring groove facing away from the first mounting groove is open, and the wire harness structure passes through the first wiring groove.

[0010] According to some embodiments of the present invention, along the arrangement direction of the first wiring groove and the first mounting groove, the end of the first mounting groove facing away from the first wiring groove is open; and / or the groove sidewall of the first wiring groove is provided with a first limiting structure, the first limiting structure being matched with the wire harness structure to limit the wire harness structure from moving out of the first wiring groove from the open end opposite to the bottom wall of the first wiring groove.

[0011] According to some embodiments of the present invention, a second limiting structure is formed on the sidewall of the first mounting groove, the second limiting structure being matched with the corresponding voltage acquisition part to restrict the voltage acquisition part from moving out of the first mounting groove from the open end opposite to the bottom wall of the first mounting groove; and / or a third limiting structure is formed on the sidewall of the first mounting groove, the third limiting structure being matched with the corresponding voltage acquisition part to restrict the corresponding voltage acquisition part from moving along the arrangement direction of the first wiring groove and the first mounting groove.

[0012] According to some embodiments of the present invention, the information acquisition device further includes: at least one temperature acquisition mechanism, the temperature acquisition mechanism being fixed to the isolation plate, the temperature acquisition mechanism being used to detect the temperature of the corresponding battery cell, and the temperature acquisition mechanism being connected to the wiring harness structure.

[0013] According to some embodiments of the present invention, the temperature acquisition mechanism includes: a mounting bracket and a temperature acquisition element, the isolation plate forming a second mounting groove, at least a portion of the mounting bracket being installed in the second mounting groove, the bottom wall of the second mounting groove forming a first through hole, the mounting bracket forming a second through hole opposite to the first through hole, both the first through hole and the second through hole being used for assembling a heat-conducting structure, the temperature acquisition element being located on the side of the mounting bracket away from the isolation plate, and the temperature acquisition element being adapted to contact the heat-conducting structure.

[0014] According to some embodiments of the present invention, the isolation plate is formed with a second wiring groove, and a portion of the wiring harness structure is installed in the second wiring groove.

[0015] According to a second aspect of the present invention, a battery device includes an information acquisition device for the battery device described in the above embodiments.

[0016] An electrical device according to a third aspect of the present invention includes the battery device described in the above embodiments.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of an information collection device according to an embodiment of this application; Figure 2 yes Figure 1 A magnified view of a portion of region A in the middle; Figure 3 This is a schematic diagram of an isolation plate according to an embodiment of this application; Figure 4 yes Figure 3 A magnified view of a portion of region B in the middle; Figure 5 This is a schematic diagram showing the assembly of the electrical connector, voltage acquisition unit, and mounting base according to an embodiment of this application; Figure 6 This is a schematic diagram showing the assembly of the voltage acquisition unit and the mounting base according to an embodiment of this application; Figure 7 This is a schematic diagram of a PCB board according to an embodiment of this application; Figure 8 This is another schematic diagram of a PCB board according to an embodiment of this application; Figure 9 This is a schematic diagram of the mounting base according to an embodiment of this application; Figure 10 This is a schematic diagram of a mounting bracket according to an embodiment of this application; Figure 11 This is a schematic diagram of a temperature acquisition device according to an embodiment of this application.

[0019] Figure label: Information collection device 1, Isolation plate 10, second mounting groove 11, second hot-riveting post 111, first through hole 12, second wiring groove 13, first strap mounting hole 14, second strap mounting hole 15, third through hole 16, third mounting groove 17, first hot-riveting post 171, fourth through hole 172. Electrical connector 20, first mounting hole 21, Voltage acquisition unit 30, voltage acquisition chip 31, PCB board 32, first pad 321, second pad 322, fuse 323, third pad 324, fifth through hole 325, fourth limiting structure 326. The wiring harness structure 40 includes a first branch wiring harness 41, a first insulation layer 411, a first copper conductor 412, and a second branch wiring harness 42. Mounting base 50, first mounting slot 51, second limiting structure 511, third limiting structure 512, first wiring slot 52, first limiting structure 521, clearance slot 53. Temperature acquisition mechanism 60, mounting bracket 61, second through hole 611, second mounting hole 612, third hot-riveting post 613, temperature acquisition component 62, mounting plate 621, protection device 622, fourth solder pad 623, third mounting hole 624. Straps 70. Detailed Implementation

[0020] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0021] The following is for reference. Figures 1-11 The present invention describes an information acquisition device 1 for a battery device according to an embodiment of the present invention. The information acquisition device 1 can be used inside the battery device and can be used to acquire temperature information and voltage information of the battery device. The battery device can be installed inside an electrical device.

[0022] According to the first aspect of the present invention, the information acquisition device 1 of the battery device may include a plurality of battery cells, such as Figures 1-11As shown, the information acquisition device 1 may include: an isolation plate 10, multiple electrical connection bars 20, a voltage acquisition mechanism, and a wiring harness structure 40. The multiple electrical connection bars 20 are disposed on the isolation plate 10 and are used to electrically connect corresponding battery cells. The voltage acquisition mechanism includes multiple voltage acquisition units 30. Each voltage acquisition unit 30 includes a voltage acquisition piece 31 and a PCB board 32. The voltage acquisition piece 31 and the PCB board 32 are fixedly connected. Each electrical connection bar 20 is connected to the voltage acquisition piece 31 of at least one voltage acquisition unit 30. The wiring harness structure 40 is connected to the PCB board 32 of the multiple voltage acquisition units 30.

[0023] It should be noted that existing battery-powered devices typically use a single flexible circuit board to collect voltage information. During long-term use, individual battery cells may expand, exerting forces on the flexible circuit board. The larger the flexible circuit board, the lower its rigidity, making it prone to deformation under stress and affecting the lifespan of the data acquisition device.

[0024] Based on this, this application proposes an information acquisition device 1 for a battery device. The battery device may include multiple battery cells, and the information acquisition device 1 can be connected to all of the multiple battery cells. The information acquisition device 1 can be used to acquire voltage and temperature information of the multiple battery cells. The information acquisition device 1 may include: an isolation plate 10, multiple electrical connection bars 20, a voltage acquisition mechanism, and a wiring harness structure 40. The isolation plate 10 may be located at the bottom of the information acquisition device 1, and the isolation plate 10 may be made of PC material, which helps to reduce the cost of the information acquisition device 1 and improve its economic efficiency. The multiple electrical connection bars 20 may be disposed on the isolation plate 10, and the multiple electrical connection bars 20 may be fixed to the isolation plate 10 by thermal riveting. The multiple electrical connection bars 20 may be configured one-to-one with the multiple battery cells, and the multiple electrical connection bars 20 may be electrically connected to the corresponding battery cells.

[0025] The voltage acquisition mechanism may include multiple voltage acquisition units 30. Each voltage acquisition unit 30 may include a voltage acquisition piece 31 and a PCB board 32. The voltage acquisition piece 31 may be soldered to the PCB board 32, and the voltage acquisition piece 31 and the PCB board 32 may be constructed as an integral structure. Each electrical connection bar 20 may be connected to at least one voltage acquisition piece 31 of the voltage acquisition unit 30, and the voltage acquisition piece 31 may be soldered to the corresponding electrical connection bar 20. When the voltage acquisition piece 31 is connected to the corresponding electrical connection bar 20, the corresponding PCB board 32 may be located on the side of the voltage acquisition piece 31 away from the corresponding electrical connection bar 20. When the information acquisition device 1 is arranged in a vertical direction, the PCB board 32 may be located above the corresponding voltage acquisition piece 31, and at least a portion of the PCB board 32 may be arranged correspondingly to the corresponding voltage acquisition piece 31 along the arrangement direction of the PCB board 32 and the corresponding voltage acquisition piece 31.

[0026] The wiring harness structure 40 can be connected to the PCB boards 32 of multiple voltage acquisition units 30. The PCB boards 32 can be soldered to the wiring harness structure 40. Each PCB board 32 can also be connected to the electrical connection bus 20 through a corresponding voltage acquisition piece 31. The electrical connection bus 20 can be connected to a corresponding battery cell. The electrical connection bus 20, the corresponding voltage acquisition unit 30, and the wiring harness structure 40 can achieve the effect of multiple battery cells being connected in series and / or in parallel, enabling the battery device to output appropriate voltage and current, and allowing the battery device to meet the power needs of different electrical devices. The wiring harness structure 40 can be connected to a connector, which can be connected to the battery management system of the battery device. Each voltage acquisition unit 30 can acquire the voltage information of the corresponding battery cell. The wiring harness structure 40 can serve as a signal transmission channel to transmit the voltage information of the battery cell, which is beneficial for realizing the effect of feeding back the voltage information of the battery cell to the battery management system, and for realizing the effect of the information acquisition device 1 acquiring the voltage information of the battery device.

[0027] In this embodiment, when a battery cell expands and deforms and exerts a force on the corresponding electrical connector 20, the force of the expanded and deformed battery cell can act on the corresponding voltage acquisition unit 30. By setting multiple voltage acquisition units 30, and each voltage acquisition unit 30 includes a voltage acquisition chip 31 and a PCB board 32, it is beneficial to reduce the impact of a battery cell expansion and deformation on the overall structure of the information acquisition device 1, reduce the probability of overall deformation of the information acquisition device 1, and extend the service life of the information acquisition device 1.

[0028] As an example, the electrical connection busbar 20 can be made of aluminum, which, compared with the copper busbar in the prior art, helps to reduce the weight of the information acquisition device 1, further reduce the cost of the information acquisition device 1, and further improve the economy of the information acquisition device 1.

[0029] As an example, the PCB board 32 can be made of epoxy resin, which helps to further reduce the cost of the information acquisition device 1 and further improve the economy of the information acquisition device 1.

[0030] As an example, multiple electrical connection rows 20 can form multiple rows of electrical connections. These multiple rows of electrical connections can be arranged sequentially along a first direction, and can be arranged opposite to each other and spaced apart along the first direction. When the information acquisition device 1... Figure 1 When setting the direction, the first direction is Figure 1 The Y direction in the second direction. Each column of electrical connections may include multiple electrical connection rows 20. The multiple electrical connection rows 20 in each column of electrical connections may be arranged sequentially along the second direction. The multiple electrical connection rows 20 in each column of electrical connections may be arranged opposite to each other and spaced apart along the second direction. When the information acquisition device 1 is as follows... Figure 1 When setting the direction, the second direction is Figure 1 In the X direction, the first direction can be perpendicular to the second direction.

[0031] As an example, there can be multiple wire harness structures 40, and multiple wire harness structures 40 can be matched one-to-one with multiple rows of electrical connection arrangements. Each row of electrical connection arrangements has multiple connection rows 20 with corresponding wire harness structures 40. The wire harness structure 40 can extend along the second direction, and one end of the wire harness structure 40 along the second direction can be connected to a connector. The connector can be connected to the battery management system of the battery device.

[0032] As an example, such as Figures 1-5 As shown, the separator 10 can form multiple third mounting slots 17, which can be correspondingly set with multiple electrical connectors 20. Each electrical connector 20 has a corresponding third mounting slot 17, and multiple electrical connectors 20 can be installed in the corresponding third mounting slot 17. The bottom wall of the third mounting slot 17 can be formed with a first hot-riveting post 171, and the electrical connector 20 can be formed with a first mounting hole 21. There can be multiple first hot-riveting posts 171 and multiple first mounting holes 21. The multiple first hot-riveting posts 171 can be correspondingly set with the multiple first mounting holes 21. The first hot-riveting posts 171 can pass through the corresponding first mounting holes 21 and cooperate with the corresponding electrical connector 20 for limiting, which is beneficial to achieving the effect of installing the electrical connector 20 in the corresponding third mounting slot 17. Furthermore, the bottom wall of the third mounting slot 17 can be formed with a fourth through hole 172, and at least a portion of the electrical connector 20 can be connected to the corresponding battery cell through the corresponding fourth through hole 172.

[0033] As an example, the electrical connector 20 can have different shapes and positions. Electrical connectors 20 in different positions can be connected to the voltage acquisition unit 30. Depending on the position and shape of the electrical connector 20, the electrical connector 20 and the corresponding voltage acquisition unit 30 can perform different functions.

[0034] In some embodiments of the present invention, such as Figures 6-8 As shown, the PCB board 32 and the corresponding voltage acquisition chip 31 are stacked. A first pad 321 is formed on the side of the PCB board 32 facing the voltage acquisition chip 31, and a second pad 322 is formed on the side of the PCB board 32 away from the voltage acquisition chip 31. A fuse 323 is connected between the first pad 321 and the second pad 322. The second pad 322 is connected to the wire harness structure 40.

[0035] The PCB board 32 can be stacked with the corresponding voltage acquisition chip 31. At least a portion of the PCB board 32 can be arranged correspondingly to the corresponding voltage acquisition chip 31 along the arrangement direction of the PCB board 32 and the corresponding voltage acquisition chip 31. When the PCB board 32 and the corresponding voltage acquisition chip 31 are stacked, a first pad 321 can be formed on the side of the PCB board 32 facing the corresponding voltage acquisition chip 31, and the PCB board 32 can be soldered to the corresponding voltage acquisition chip 31 through the first pad 321. A second pad 322 can be formed on the side of the PCB board 32 away from the voltage acquisition chip 31. The first pad 321 can be connected to the second pad 322, and the second pad 322 can be connected to the wiring harness structure 40. The PCB board 32 can be connected to the wiring harness structure 40 through the second pad 322, thereby further realizing the effect of the voltage acquisition unit 30 feeding back the voltage information of the corresponding battery cell to the battery management system through the wiring harness structure 40.

[0036] A fuse 323 can be connected between the first pad 321 and the second pad 322. When a battery cell outputs excessive current, i.e., an overcurrent occurs in the voltage acquisition unit 30, the corresponding fuse 323 can blow, thereby disconnecting the voltage acquisition unit 30 from the wiring harness structure 40. This helps reduce the probability of affecting other battery cells in the battery device and improves the reliability of the battery device. Furthermore, compared with the technical solution of setting the fuse 323 on the wiring harness structure 40, setting the fuse 323 between the first pad 321 and the second pad 322 is simpler in process, easier to operate, and helps reduce the manufacturing difficulty of the information acquisition device 1.

[0037] In some embodiments of the present invention, as shown in FIG7 and Figure 8 As shown, a third pad 324 is also formed on the side of the PCB board 32 away from the voltage acquisition chip 31, and the first pad 321 is connected to the fuse 323 through the third pad 324.

[0038] A third pad 324 can be formed on the side of the PCB board 32 opposite to the voltage acquisition chip 31. The third pad 324 can be located on the same side of the PCB board 32 as the second pad 322. The first pad 321 can be connected to the fuse 323 through the third pad 324. That is, the fuse 323 can be connected between the second pad 322 and the third pad 324. The third pad 324, the second pad 322, and the fuse 323 can be located on the same side of the PCB board 32, which facilitates the arrangement of the fuse 323. By setting the third pad 324, the two ends of the fuse 323 do not need to be located on opposite sides of the corresponding PCB board 32, which helps to reduce the probability of the fuse 323 breaking due to bending, improves the reliability of the fuse 323, and improves the reliability of the voltage acquisition unit 30.

[0039] As an example, the third pad 324 can be positioned opposite the first pad 321 along the thickness direction of the corresponding PCB board 32. A fifth through-hole 325 can be formed between the third pad 324 and the first pad 321, and the fifth through-hole 325 can penetrate the PCB board 32 along its thickness direction. When integrating the first pad 321 and the third pad 324 on the PCB board 32, the inner surface of the fifth through-hole 325 is simultaneously electroplated, thereby connecting the first pad 321 and the third pad 324. This allows current to flow through the first pad 321, the fifth through-hole 325, and the third pad 324, which is beneficial for achieving the effect of current flowing through the voltage acquisition unit 30.

[0040] In some embodiments of the present invention, such as Figure 2 , Figure 6 and Figure 9 As shown, the information acquisition device 1 may further include: a mounting base 50, at least one voltage acquisition unit 30 is correspondingly provided with the mounting base 50, the mounting base 50 forms a first mounting groove 51, at least a portion of the voltage acquisition unit 30 is disposed in the first mounting groove 51, the mounting base 50 also forms a first wiring groove 52, the first wiring groove 52 is located on one side of the first mounting groove 51 and communicates with the first mounting groove 51, the first wiring groove 52 extends along the arrangement direction of the first wiring groove 52 and the first mounting groove 51, and the end of the first wiring groove 52 facing away from the first mounting groove 51 is open, and the wire harness structure 40 passes through the first wiring groove 52.

[0041] At least one voltage acquisition unit 30 may be correspondingly provided with a mounting base 50, and at least one voltage acquisition unit 30 may be assembled with the mounting base 50. The mounting base 50 may be formed with a first mounting groove 51, which may be recessed toward the interior of the mounting base 50. At least a portion of the voltage acquisition unit 30 may be disposed in the first mounting groove 51, and the side wall of the voltage acquisition unit 30 may abut and limit the groove side wall of the first mounting groove 51, which is beneficial to improving the integrity of the voltage acquisition unit 31 and the PCB board 32, and to reducing the probability of the voltage acquisition unit 31 and the PCB board 32 separating and misaligning with each other.

[0042] As an example, the mounting base 50 can be spaced apart from the separator 10, and a gap can be formed between the mounting base 50 and the separator 10. When the corresponding battery cell expands and deforms, the position of the separator 10 corresponding to the corresponding battery cell may be deformed. The gap between the mounting base 50 and the separator 10 can provide deformation space for the deformation of the separator 10.

[0043] The mounting base 50 may also have a first wiring groove 52. The first wiring groove 52 may be located on one side of the first mounting groove 51. The first wiring groove 52 may be formed on one of the groove sidewalls of the first mounting groove 51 and may communicate with the first mounting groove 51. The first wiring groove 52 may extend along the arrangement direction of the first wiring groove 52 and the first mounting groove 51 (i.e., the thickness direction of the groove sidewall of the first mounting groove 51 in which the first wiring groove 52 is formed). The end of the first wiring groove 52 away from the first mounting groove 51 may be open, that is, the first wiring groove 52 may penetrate the corresponding groove sidewall along the thickness direction of the groove sidewall of the first mounting groove 51 in which the first wiring groove 52 is formed. The wire harness structure 40 may be inserted into the first wiring groove 52. The wire harness structure 40 may extend along the arrangement direction of the first wiring groove 52 and the first mounting groove 51. One end of the wire harness structure 40 may extend into the first mounting groove 51 and connect to the PCB board 32 of the corresponding voltage acquisition unit 30. The first wiring groove 52 can limit and fix the wire harness structure 40, which helps to reduce the probability of poor contact caused by the wire harness structure 40 being pulled when it is connected to the corresponding voltage acquisition unit 30 and subjected to the force from the corresponding battery cell. It also helps to improve the reliability of the connection between the wire harness structure 40 and the PCB board 32 of the corresponding voltage acquisition unit 30. The first wiring groove 52 can also guide the wire harness structure 40, which helps to achieve the orderly arrangement of the wire harness structure 40 in the information acquisition device 1 and improves the assembly efficiency of the wire harness structure 40.

[0044] In some embodiments of the present invention, such as Figure 9 As shown, along the arrangement direction of the first wiring groove 52 and the first mounting groove 51, the end of the first mounting groove 51 facing away from the first wiring groove 52 is open; and / or the side wall of the first wiring groove 52 is provided with a first limiting structure 521, which cooperates with the wire harness structure 40 to limit the wire harness structure 40 from moving out of the first wiring groove 52 from the open end opposite to the bottom wall of the first wiring groove 52.

[0045] The end of the first mounting groove 51 facing away from the first wiring groove 52 along the arrangement direction of the first wiring groove 52 and the first mounting groove 51 can be open, or the side wall of the first wiring groove 52 can be provided with a first limiting structure 521, or the end of the first mounting groove 51 facing away from the first wiring groove 52 along the arrangement direction of the first wiring groove 52 and the first mounting groove 51 can be open, and the side wall of the first wiring groove 52 can be provided with a first limiting structure 521. This embodiment of the application uses the example of the first mounting groove 51 being open at the end facing away from the first wiring groove 52 along the arrangement direction of the first wiring groove 52 and the first mounting groove 51, and the side wall of the first wiring groove 52 being provided with a first limiting structure 521.

[0046] Along the arrangement direction of the first wiring groove 52 and the first mounting groove 51, the end of the first mounting groove 51 facing away from the first wiring groove 52 can be open. The voltage acquisition unit 30 can be inserted into the open end of the first mounting groove 51 facing away from the first wiring groove 52, thereby achieving the effect that at least part of the voltage acquisition unit 30 is disposed in the first mounting groove 51. The voltage acquisition unit 30 and the wire harness structure 40 can be arranged sequentially along the arrangement direction of the first wiring groove 52 and the first mounting groove 51. The wire harness structure 40 can be inserted into the first wiring groove 52, which helps to reduce the probability of bending of the wire harness structure 40 and further improves the reliability of the wire harness structure 40.

[0047] As an example, such as Figure 9 As shown, the mounting base 50 may also have a clearance groove 53, which can communicate with the first mounting groove 51. The clearance groove 53 can be located at the connection of any two adjacent side walls of the first mounting groove 51. When at least a part of the voltage acquisition unit 30 is installed in the first mounting groove 51, the side wall of the PCB board 32 can abut against the side wall of the first mounting groove 51. At least a part of the connection of two adjacent side walls of the PCB board 32 can be located in the clearance groove 53, which helps to reduce the friction between the connection of two adjacent side walls of the PCB board 32 and the first mounting groove 51, and helps to extend the service life of the PCB board 32.

[0048] The first wiring trough 52 may have a first limiting structure 521 on its sidewall, which may be integrally formed with the sidewall. Along the depth direction of the first wiring trough 52, the first limiting structure 521 may be spaced apart from the bottom wall of the first wiring trough 52, and the wire harness structure 40 may be located between the first limiting structure 521 and the bottom wall of the first wiring trough 52. The first limiting structure 521 can cooperate with the wire harness structure 40 to limit the wire harness structure 40 from moving out of the first wiring groove 52 from the open end opposite to the bottom wall of the first wiring groove 52. This helps to reduce the probability of the wire harness structure 40 coming out of the first wiring groove 52, further improves the effect of fixing the wire harness structure 40, further reduces the probability of the wire harness structure 40 being pulled and causing poor contact when it is connected to the corresponding voltage acquisition unit 30 and subjected to the force from the corresponding battery cell, and further improves the reliability of the connection between the wire harness structure 40 and the PCB board 32 of the corresponding voltage acquisition unit 30.

[0049] In some embodiments of the present invention, such as Figure 9As shown, a second limiting structure 511 is formed on the side wall of the first mounting groove 51. The second limiting structure 511 cooperates with the corresponding voltage acquisition unit 30 to limit the voltage acquisition unit 30 from moving out of the first mounting groove 51 from the open end opposite to the bottom wall of the first mounting groove 51; and / or a third limiting structure 512 is formed on the side wall of the first mounting groove 51. The third limiting structure 512 cooperates with the corresponding voltage acquisition unit 30 to limit the movement of the corresponding voltage acquisition unit 30 along the arrangement direction of the first wiring groove 52 and the first mounting groove 51.

[0050] The first mounting groove 51 may have a second limiting structure 511 formed on its sidewall, or the first mounting groove 51 may have a third limiting structure 512 formed on its sidewall, or the first mounting groove 51 may have a second limiting structure 511 formed on its sidewall and a third limiting structure 512 formed on its sidewall. In this embodiment, the first mounting groove 51 may have a second limiting structure 511 formed on its sidewall and a third limiting structure 512 formed on its sidewall as an example.

[0051] A second limiting structure 511 can be formed on the side wall of the first mounting groove 51. The second limiting structure 511 can cooperate with the corresponding voltage acquisition unit 30 for limiting. The second limiting structure 511 can be spaced apart from the bottom wall of the first mounting groove 51 along the depth direction of the first mounting groove 51. When at least a part of the corresponding voltage acquisition unit 30 is located in the first mounting groove 51, the lower surface of the corresponding voltage acquisition unit 30 can contact the bottom wall of the first mounting groove 51. Along the depth direction of the first mounting groove 51, the corresponding voltage acquisition unit 30 can be located between the second limiting structure 511 and the bottom wall of the first mounting groove 51. This is beneficial for limiting the voltage acquisition unit 30 from the open end of the first mounting groove 51 opposite to the bottom wall of the first mounting groove 51, for limiting the corresponding voltage acquisition unit 30 along the depth direction of the first mounting groove 51, for positioning and installing the voltage acquisition unit 30, and for improving the reliability of the corresponding voltage acquisition unit 30 located in the first mounting groove 51.

[0052] As an example, the second limiting structure 511 can be constructed as a rubber structure. When the voltage acquisition unit 30 is installed in the first mounting groove 51 from the open end opposite to the bottom wall of the first mounting groove 51, the voltage acquisition unit 30 can cause the corresponding second limiting structure 511 to be squeezed and deformed. When the voltage acquisition unit 30 is installed in place, that is, when the voltage acquisition unit 30 is located between the corresponding second limiting structure 511 and the bottom wall of the corresponding first mounting groove 51, the corresponding second limiting structure 511 can restore its elastic deformation. The corresponding second limiting structure 511 can abut and limit the voltage acquisition unit 30, which is beneficial to achieve the effect of restricting the voltage acquisition unit 30 from moving out of the first mounting groove 51 from the open end opposite to the bottom wall of the first mounting groove 51 while facilitating the installation of the voltage acquisition unit 30 in the first mounting groove 51.

[0053] The sidewall of the first mounting groove 51 may be formed with a third limiting structure 512. The third limiting structure 512 can cooperate with the corresponding voltage acquisition unit 30 for limiting. The third limiting structure 512 can restrict the movement of the corresponding voltage acquisition unit 30 along the arrangement direction of the first wiring groove 52 and the first mounting groove 51. This helps to reduce the probability that the corresponding voltage acquisition unit 30 will come out through the end of the first mounting groove 51 away from the first wiring groove 52. This helps to further improve the reliability of the corresponding voltage acquisition unit 30 in the first mounting groove 51 and further realize the positioning and installation of the voltage acquisition unit 30.

[0054] As an example, the third limiting structure 512 can also be connected to the bottom wall of the first mounting groove 51. When at least a portion of the corresponding voltage acquisition unit 30 is located in the first mounting groove 51 and the lower surface of the corresponding voltage acquisition unit 30 is in contact with the bottom wall of the first mounting groove 51, it is beneficial to increase the contact area between the third limiting structure 512 and the corresponding voltage acquisition unit 30, which is beneficial to further enhance the effect of the third limiting structure 512 in restricting the movement of the corresponding voltage acquisition unit 30 along the arrangement direction of the first wiring groove 52 and the first mounting groove 51.

[0055] As an example, the voltage acquisition unit 30 can have a fourth limiting structure 326, which can be mounted on the PCB board 32. The third limiting structure 512 and the fourth limiting structure 326 can be assembled together to achieve the limiting engagement effect between the third limiting structure 512 and the corresponding voltage acquisition unit 30. The third limiting structure 512 can be a limiting block, and the fourth limiting structure 326 can be a limiting notch. The limiting block can be assembled into the limiting notch, which is beneficial for achieving the limiting engagement between the third limiting structure 512 and the fourth limiting structure 326.

[0056] As an example, along the arrangement direction of the first mounting groove 51 and the first wiring groove 52, the second limiting structure 511 and the third limiting structure 512 can be staggered, which facilitates the processing of the second limiting structure 511 and the third limiting structure 512 and helps to reduce the probability of the second limiting structure 511 and the third limiting structure 512 conflicting with each other along the depth direction of the first mounting groove 51.

[0057] In some embodiments of the present invention, such as Figure 1 and Figure 2 As shown, the wiring harness structure 40 includes a plurality of first branch wiring harnesses 41, and each PCB board 32 is connected to at least one first branch wiring harness 41.

[0058] The wiring harness structure 40 may include multiple first branch wiring harnesses 41, which can be bundled and wrapped with tape to form the wiring harness structure 40. The first branch wiring harnesses 41 can be used to connect to the PCB board 32. When the first branch wiring harnesses 41 are used to connect to the PCB board 32, they can be threaded through the corresponding first wiring groove 52. Each PCB board 32 can be connected to at least one first branch wiring harness 41. An appropriate number of first branch wiring harnesses 41 are selected to connect to the PCB board 32 according to actual working needs. By setting each PCB board 32 to be connected to at least one first branch wiring harness 41, it is beneficial to achieve the effect that the wiring harness structure 40 can feed back the voltage information of multiple battery cells to the battery management system, further enabling the wiring harness structure 40 to function as a signal transmission channel for transmitting the voltage information of the battery cells, and further enabling the information acquisition device 1 to acquire the voltage information of the battery device.

[0059] As an example, such as Figure 2 As shown, the first branch harness 41 may include a first insulating layer 411 and a first copper conductor. The first insulating layer 411 may wrap the first copper wire 412. The first copper wire 412 may be used for soldering connection with the PCB board 32. The first copper wire 412 may be soldered connection with the second pad 322.

[0060] As an example, such as Figure 2 and Figure 9 As shown, the mounting base 50 can form two first wiring grooves 52. The two first wiring grooves 52 can be arranged opposite to each other and spaced apart. The voltage acquisition unit 30 can be connected to one first branch wire harness 41, or the voltage acquisition unit 30 can be connected to two first branch wire harnesses 41. In this embodiment, the voltage acquisition unit 30 is connected to one first branch wire harness 41 as an example for explanation.

[0061] In some embodiments of the present invention, such as Figure 1 and Figure 2As shown, the information acquisition device 1 may further include: at least one temperature acquisition mechanism 60, which is fixed to the isolation plate 10. The temperature acquisition mechanism 60 is used to detect the temperature of the corresponding battery cell, and the temperature acquisition mechanism 60 is connected to the wiring harness structure 40.

[0062] There can be at least one temperature acquisition mechanism 60, which can be fixed to the isolation plate 10. The temperature acquisition mechanism 60 can be fixed to the isolation plate 10 by thermal riveting. The temperature acquisition mechanism 60 can be in contact with the isolation plate 10, and the temperature acquisition mechanism 60 and the corresponding battery cell can be located on opposite sides of the isolation plate 10 along the thickness direction of the isolation plate 10. The heat of the corresponding battery cell can be transferred to the temperature acquisition mechanism 60 through the isolation plate 10. The temperature acquisition mechanism 60 can be used to detect the temperature of the corresponding battery cell. The temperature acquisition mechanism 60 can be connected to the wiring harness structure 40, which can serve as a signal transmission channel to transmit the temperature information of the battery cell. This is beneficial for feeding back the temperature information of the battery cell to the battery management system and for the information acquisition device 1 to collect the temperature information of the battery device.

[0063] In some embodiments of the present invention, such as Figure 2 , Figure 4 , Figure 10 and Figure 11 As shown, the temperature acquisition mechanism 60 may include: a mounting bracket 61 and a temperature acquisition element 62. The isolation plate 10 forms a second mounting groove 11. At least a portion of the mounting bracket 61 is installed in the second mounting groove 11. A first through hole 12 is formed on the bottom wall of the second mounting groove 11. The mounting bracket 61 forms a second through hole 611 opposite to the first through hole 12. Both the first through hole 12 and the second through hole 611 are used to assemble a heat-conducting structure. The temperature acquisition element 62 is located on the side of the mounting bracket 61 away from the isolation plate 10. The temperature acquisition element 62 is adapted to contact the heat-conducting structure.

[0064] like Figure 2 and Figure 4As shown, the isolation plate 10 can be formed with a second mounting groove 11, which is recessed towards the interior of the isolation plate 10. There can be at least one second mounting groove 11, and the number of second mounting grooves 11 can be greater than or equal to the number of temperature acquisition mechanisms 60. Each temperature acquisition mechanism 60 has a corresponding second mounting groove 11 for assembly. The temperature acquisition mechanism 60 can include a mounting bracket 61 and a temperature acquisition element 62. At least a portion of the mounting bracket 61 can be installed within the second mounting groove 11. As an example, the bottom wall of the second mounting groove 11 can be formed with a second hot-riveting post 111. At least a portion of the mounting bracket 61 located within the second mounting groove 11 can be formed with a second mounting hole 612. There can be multiple second hot-riveting posts 111 and multiple second mounting holes 612. Multiple second hot-riveting posts 111 can be correspondingly arranged with multiple second mounting holes 612. The second hot-riveting posts 111 can pass through the corresponding second mounting hole 612 and engage with the corresponding mounting bracket 61, which facilitates the effect of at least a portion of the mounting bracket 61 being installed in the second mounting groove 11.

[0065] The bottom wall of the second mounting groove 11 may have a first through hole 12, which penetrates the bottom wall of the second mounting groove 11 along its thickness direction. The mounting bracket 61 may have a second through hole 611, which is positioned opposite to the first through hole 12 along the arrangement direction of the bottom wall of the second mounting groove 11 and the mounting bracket 61. The first through hole 12 and the second through hole 611 are connected. Both the first through hole 12 and the second through hole 611 can be used to assemble a heat-conducting structure, which can simultaneously pass through both the first through hole 12 and the second through hole 611.

[0066] The temperature acquisition element 62 can be located on the side of the mounting bracket 61 facing away from the isolation plate 10. The heat-conducting structure can be located on the side of the temperature acquisition element 62 facing the mounting bracket 61. The temperature acquisition element 62 is adapted to contact the heat-conducting structure, which can conduct heat dissipated by the corresponding battery cell, enabling the temperature acquisition element 62 to acquire the temperature information of the corresponding battery cell. When the temperature acquisition mechanism 60 is used to detect the temperature of the corresponding battery cell, the heat-conducting structure can contact both the temperature acquisition element 62 and the corresponding battery cell. As an example, the heat-conducting structure can be a heat-conducting pad, which can be bonded to the temperature acquisition element 62 and compressed between the temperature acquisition element 62 and the corresponding battery cell. The heat from the battery cell can be transferred to the corresponding temperature acquisition element 62 through the corresponding heat-conducting structure, thereby further realizing the effect of the temperature acquisition mechanism 60 in detecting the temperature of the corresponding battery cell.

[0067] As an example, such as Figure 11As shown, the temperature acquisition component 62 may include a mounting plate 621, a temperature acquisition thermistor, and a protective structure 622. The temperature acquisition thermistor and the corresponding heat-conducting structure may be located on opposite sides of the mounting plate 621 along its thickness direction. The temperature acquisition thermistor may be located on the side of the mounting plate 621 away from the mounting bracket 61, while the protective structure 622 may be located on the same side of the mounting plate 621 as the temperature acquisition thermistor. The protective structure 622 may be constructed as a ring structure and may be fitted over the temperature acquisition thermistor, which helps reduce the probability of damage caused by compression and improves the reliability of the temperature acquisition thermistor. The heat-conducting structure can conduct the heat dissipated by the corresponding battery cell to the mounting plate 621, and the temperature acquisition thermistor can collect the temperature information at the corresponding position on the mounting plate 621, thereby further realizing the effect of the temperature acquisition component 62 collecting the temperature information of the corresponding battery cell.

[0068] As an example, such as Figure 2 and Figure 11 As shown, a fourth pad 623 can be formed on the side of the mounting plate 621 away from the mounting bracket 61. The fourth pad 623 can be connected to the temperature acquisition thermistor and can be welded to the wiring harness structure 40, which is beneficial to further realize the effect of feeding back the temperature information of the corresponding battery cell to the battery management system through the wiring harness structure 40.

[0069] As an example, such as Figure 10 and Figure 11 As shown, the mounting bracket 61 can have a third hot-riveting post 613, and the mounting plate 621 can have a third mounting hole 624. There can be multiple third hot-riveting posts 613 and multiple third mounting holes 624. Multiple third hot-riveting posts 613 can be set one-to-one with multiple third mounting holes 624. The third hot-riveting posts 613 can pass through the corresponding third mounting holes 624 and cooperate with the corresponding mounting plate 621 for limiting, which is beneficial to realize the effect of installing the temperature acquisition element 62 on the corresponding mounting bracket 61.

[0070] In some embodiments of the present invention, such as Figure 2 As shown, the wiring harness structure 40 includes at least one second branch wiring harness 42, and each temperature acquisition mechanism 60 is connected to at least one second branch wiring harness 42.

[0071] The wiring harness structure 40 may include at least one second branch wiring harness 42, which may be bundled and twisted with multiple first branch wiring harnesses 41 using adhesive tape to form the wiring harness structure 40. The second branch wiring harness 42 may be used to connect to a temperature acquisition mechanism 60, and each temperature acquisition element 62 of the temperature acquisition mechanism 60 may be connected to at least one second branch wiring harness 42. By configuring each temperature acquisition mechanism 60 to connect to at least one second branch wiring harness 42, it is beneficial to achieve the effect that the wiring harness structure 40 can feed back the temperature information of multiple battery cells to the battery management system, further enabling the wiring harness structure 40 to function as a signal transmission channel for transmitting the temperature information of the battery cells, and further enabling the information acquisition device 1 to acquire the temperature information of the battery device.

[0072] As an example, the second branch harness 42 may include a second insulating layer and a second copper conductor. The second insulating layer may wrap the second copper conductor, which may be used for soldering to the temperature acquisition element 62 and to the fourth solder pad 623.

[0073] In some embodiments of the present invention, such as Figure 1 and Figure 2 As shown, the isolation plate 10 has a second wiring groove 13, and part of the wire harness structure 40 is installed in the second wiring groove 13.

[0074] The isolation plate 10 may have a second wiring groove 13, which may be recessed towards the interior of the isolation plate 10. The second wiring groove 13 may extend along a second direction, and a portion of the wire harness structure 40 may be installed within the second wiring groove 13. A portion of the wire harness structure 40 may extend out of the second wiring groove 13 and connect to the PCB board 32 or the temperature acquisition device 62, which is beneficial for improving the orderliness of the wire harness structure 40, for further realizing the orderly arrangement of the wire harness structure 40 within the information acquisition device 1, and for further improving the assembly efficiency of the wire harness structure 40.

[0075] As an example, multiple electrical connection bars 20 can form multiple rows of electrical connection arrangements. Each row of electrical connection arrangements can be used in conjunction with a wire harness structure 40. The wire harness structure 40 can extend along the arrangement direction of the multiple electrical connection bars 20 in each row of electrical connection arrangements, that is, the wire harness structure 40 can extend along the second direction. The second wiring groove 13 can extend along the second direction. The wire harness structure 40 can be connected to the corresponding voltage acquisition unit 30 of the multiple electrical connection bars 20 in the corresponding electrical connection arrangement. The multiple corresponding voltage acquisition units 30 can be connected to the first branch wire harness 41.

[0076] In some embodiments of the present invention, such as Figure 2As shown, the isolation plate 10 has at least one set of strap mounting holes, which may include a first strap mounting hole 14 and a second strap mounting hole 15, the first strap mounting hole 14 and the second strap mounting hole 15 being located on opposite sides of the second cable tray 13.

[0077] The isolation plate 10 may have at least one set of strap mounting holes. The strap 70 can be assembled with the strap mounting hole set to fix the wire harness structure 40. The strap mounting hole set may include a first strap mounting hole 14 and a second strap mounting hole 15. Both the first strap mounting hole 14 and the second strap mounting hole 15 can penetrate the isolation plate 10 along the thickness direction. The first strap mounting hole 14 and the second strap mounting hole 15 can be located on opposite sides of the second wiring groove 13. The strap 70 can extend circumferentially along the wire harness structure 40. The two ends of the strap 70 can pass through the first strap mounting hole 14 and the second strap mounting hole 15 respectively and connect to each other, which is beneficial to achieve the effect of the strap 70 confining the wire harness structure 40 on the isolation plate 10.

[0078] In some embodiments of the present invention, such as Figure 2 As shown, the isolation plate 10 has a third through hole 16, which is used to correspond to the explosion-proof structure of the corresponding battery cell.

[0079] The separator 10 may have a third through hole 16, which penetrates the separator 10 along its thickness direction and is arranged in the direction of the separator 10 and the corresponding battery cell arrangement. The third through hole 16 can be configured to correspond with the explosion-proof structure of the corresponding battery cell. When a battery cell experiences thermal runaway, it will generate high-temperature flammable gas or particulate matter. This application uses the generation of high-temperature flammable gas when a battery cell experiences thermal runaway as an example for explanation. When a battery cell experiences thermal runaway, the internal pressure of the battery cell increases. The high-temperature flammable gas inside the battery cell can open the explosion-proof structure, thereby achieving the effect of timely release of the pressure of the battery cell. The third through hole 16 is configured to correspond with the explosion-proof structure of the corresponding battery cell. When the high-temperature flammable gas inside the battery cell is ejected through the explosion-proof structure, the high-temperature flammable gas ejected through the explosion-proof structure can be discharged to the outside of the battery cell through the third through hole 16, which helps to reduce the probability of the high-temperature flammable gas ejected from the battery cell damaging the information collection device 1 and helps to further extend the service life of the information collection device 1.

[0080] According to a second aspect of the present invention, a battery device includes the information acquisition device 1 of the battery device described in the above embodiments.

[0081] According to the battery device of the present application embodiment, using the information acquisition device 1 of the battery device in the above embodiment is beneficial to improving the reliability of the battery device, extending the service life of the battery device, and reducing the cost of the battery device.

[0082] An electrical device according to a third aspect of the present invention includes the battery device described in the above embodiments.

[0083] The use of the battery device in the above embodiments of the power device according to the embodiments of this application is beneficial to improving the reliability of the power device and reducing the cost of the power device.

[0084] Other configurations and operations of the information acquisition device 1, battery device, and power consumption device according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0085] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0086] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An information acquisition device for a battery device, characterized in that, The battery device includes multiple battery cells, and the information acquisition device (1) includes: Isolation plate (10); Multiple electrical connection bars (20) are provided on the isolation plate (10), and the electrical connection bars (20) are used to electrically connect the corresponding battery cells; A voltage acquisition mechanism, comprising a plurality of voltage acquisition units (30), each voltage acquisition unit (30) comprising a voltage acquisition chip (31) and a PCB board (32), the voltage acquisition chip (31) and the PCB board (32) being fixedly connected, and each electrical connection bar (20) being connected to at least one voltage acquisition chip (31) of the voltage acquisition unit (30); A wire harness structure (40) is connected to the PCB board (32) of the plurality of voltage acquisition units (30).

2. The information acquisition device for the battery device according to claim 1, characterized in that, The PCB board (32) and the corresponding voltage acquisition chip (31) are stacked. A first pad (321) is formed on the side of the PCB board (32) facing the voltage acquisition chip (31), and a second pad (322) is formed on the side of the PCB board (32) away from the voltage acquisition chip (31). A fuse (323) is connected between the first pad (321) and the second pad (322). The second pad (322) is connected to the wire harness structure (40).

3. The information acquisition device for the battery device according to claim 1, characterized in that, The information acquisition device (1) further includes: a mounting base (50), at least one of the voltage acquisition units (30) is provided with the mounting base (50), the mounting base (50) forms a first mounting groove (51), at least a portion of the voltage acquisition unit (30) is disposed in the first mounting groove (51), the mounting base (50) also forms a first wiring groove (52), the first wiring groove (52) is located on one side of the first mounting groove (51) and communicates with the first mounting groove (51), the first wiring groove (52) extends along the arrangement direction of the first wiring groove (52) and the first mounting groove (51), and the end of the first wiring groove (52) facing away from the first mounting groove (51) is open, and the wire harness structure (40) passes through the first wiring groove (52).

4. The information acquisition device for the battery device according to claim 3, characterized in that, Along the arrangement direction of the first wiring groove (52) and the first mounting groove (51), the end of the first mounting groove (51) facing away from the first wiring groove (52) is open; and / or The first wiring trough (52) has a first limiting structure (521) on its side wall. The first limiting structure (521) cooperates with the wire harness structure (40) to limit the wire harness structure (40) from moving out of the first wiring trough (52) from the open end opposite to the bottom wall of the first wiring trough (52).

5. The information acquisition device for the battery device according to claim 4, characterized in that, The first mounting groove (51) has a second limiting structure (511) formed on its sidewall. The second limiting structure (511) is engaged with the corresponding voltage acquisition unit (30) to limit the voltage acquisition unit (30) from moving out of the first mounting groove (51) from the open end opposite to the bottom wall of the first mounting groove (51); and / or The first mounting groove (51) has a third limiting structure (512) formed on its sidewall. The third limiting structure (512) cooperates with the corresponding voltage acquisition unit (30) to limit the movement of the corresponding voltage acquisition unit (30) along the arrangement direction of the first wiring groove (52) and the first mounting groove (51).

6. The information acquisition device for the battery device according to claim 1, characterized in that, The information acquisition device (1) further includes: at least one temperature acquisition mechanism (60), which is fixed to the isolation plate (10), and is used to detect the temperature of the corresponding battery cell, and is connected to the wiring harness structure (40).

7. The information acquisition device for the battery device according to claim 6, characterized in that, The temperature acquisition mechanism (60) includes a mounting bracket (61) and a temperature acquisition element (62). The isolation plate (10) forms a second mounting groove (11). At least a portion of the mounting bracket (61) is installed in the second mounting groove (11). The bottom wall of the second mounting groove (11) forms a first through hole (12). The mounting bracket (61) forms a second through hole (611) opposite to the first through hole (12). Both the first through hole (12) and the second through hole (611) are used to assemble a heat-conducting structure. The temperature acquisition element (62) is located on the side of the mounting bracket (61) away from the isolation plate (10). The temperature acquisition element (62) is adapted to contact the heat-conducting structure.

8. The information acquisition device for the battery device according to any one of claims 1-7, characterized in that, The isolation plate (10) has a second wiring groove (13), and part of the wiring harness structure (40) is installed in the second wiring groove (13).

9. A battery device, characterized in that, The information acquisition device (1) of the battery device according to any one of claims 1-8.

10. An electrical device, characterized in that, Includes the battery device according to claim 9.

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