Sampling assembly of battery device and battery device

Abstract

The invention discloses a sampling assembly of a battery device and the battery device, and relates to the technical field of batteries. The mounting part is assembled in the assembling groove, the mounting part comprises a distance compensation part and a plurality of mounting parts arranged in the first direction, the sampling assembly is mounted on the corresponding mounting part, the distance compensation part is connected between any two adjacent mounting parts, and the distance compensation part comprises a plurality of distance compensation sections which are connected in a bending manner; according to the battery device, the distance compensation part is connected between any two adjacent mounting parts, and the plurality of distance compensation sections are sequentially bent and connected, so that when the battery cell of the battery device expands, the distance compensation part deforms along the first direction, the working interference of the expansion of the battery cell on the sampling assembly is reduced, and the sampling efficiency is improved. And the damage risk of the joints of the parts of the sampling assembly is reduced, so that the sampling assembly can accurately monitor the battery in real time, and the use safety of the battery is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of batteries, and more particularly to a sampling assembly of a battery device and a battery device having the sampling assembly of the battery device. Background Art

[0002] In the related art, a battery device needs to monitor the voltage, temperature, etc. of battery cells in real time through a battery controller to judge the state of charge, health level, etc. of the battery, so as to provide a safe battery control management strategy. However, in the existing battery cell acquisition and connection system, each component is rigidly connected. After the battery cells are used for a period of time, they are prone to expansion, resulting in the disconnection of the connection points of the battery cell acquisition and connection system, thus causing the structural failure or even damage of the battery cell acquisition and connection system, and affecting the monitoring results of the battery. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. For this purpose, an object of the present invention is to provide a sampling assembly of a battery device, which reduces the working interference of the expansion of battery cells on the sampling assembly and reduces the risk of damage to the connection points between the components of the sampling assembly.

[0004] The present invention further provides a battery device.

[0005] The sampling assembly according to an embodiment of the present invention includes: a partition board, the partition board is formed with an assembly groove, the assembly groove extends along a first direction, and the first direction is perpendicular to the thickness direction of the partition board; a sampling component, the sampling component is used for electrically connecting with a battery cell of the battery device to collect parameter information of the battery cell; a mounting member, the mounting member is assembled in the assembly groove, the mounting member includes a distance compensation portion and a plurality of mounting portions, the plurality of mounting portions are arranged in sequence along the first direction, the sampling component is mounted on the corresponding mounting portion, a distance compensation portion is connected between any two adjacent mounting portions, along the thickness direction of the mounting member, the distance compensation portion protrudes from at least one side of the mounting member to the mounting portion, the distance compensation portion includes a plurality of distance compensation segments, the plurality of distance compensation segments are connected in sequence along the first direction, and any two adjacent distance compensation segments are bent and connected, the two distance compensation segments at the ends are respectively connected to the adjacent two mounting portions, and the distance compensation portion is configured to be deformable along the first direction.

[0006] The sampling assembly according to an embodiment of the present invention, by connecting a distance compensation portion between any two adjacent mounting portions, and the plurality of distance compensation segments are bent and connected in sequence. When the battery cells of the battery device expand, the distance compensation portion deforms along the first direction, which is beneficial to reducing the working interference of the expansion of battery cells on the sampling assembly and reducing the risk of damage to the connection points between the components of the sampling assembly, thereby facilitating the sampling assembly to monitor the battery in real time and accurately and improving the use safety of the battery.

[0007] In some embodiments of the present invention, the plurality of distance compensation segments include a first distance compensation segment and a plurality of second distance compensation segments. The plurality of second distance compensation segments are arranged at intervals in sequence along a first direction and all extend along the thickness direction of the mounting member. A first distance compensation segment is connected between any two adjacent second distance compensation segments. Along the thickness direction of the mounting member, the end of the second distance compensation segment is connected to the corresponding first distance compensation segment, and the two ends of each second distance compensation segment located at the end are respectively connected to the adjacent mounting portion and the first distance compensation segment.

[0008] In some embodiments of the present invention, the second distance compensation segment located at the end is perpendicular to the adjacent mounting portion.

[0009] In some embodiments of the present invention, the first distance compensation segment is perpendicular to the adjacent second distance compensation segment.

[0010] In some embodiments of the present invention, along the thickness direction of the mounting member, the plurality of second distance compensation segments are located on the same side of the mounting member.

[0011] In some embodiments of the present invention, at least one first distance compensation segment is located on the side of the mounting member where the second distance compensation segments are formed.

[0012] In some embodiments of the present invention, the number of the second distance compensation segments is greater than or equal to four, and at least one first distance compensation segment and the plurality of mounting portions are coplanar.

[0013] In some embodiments of the present invention, the plurality of second distance compensation segments are parallel to each other; and / or, the first distance compensation segment is parallel to the adjacent mounting portion.

[0014] In some embodiments of the present invention, the mounting member is formed with a plurality of first assembly holes, the plurality of first assembly holes are arranged in sequence along the first direction, and at least one first assembly hole is configured as a strip-shaped hole extending along the first direction; and / or, the mounting member is an integrally formed part.

[0015] The battery device according to the embodiment of the present invention includes the sampling assembly of the battery device in the above embodiment.

[0016] The additional aspects and advantages of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present invention. Description of the Drawings

[0017] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0018] Figure 1 is a schematic structural diagram of the sampling assembly according to the embodiment of the present invention;

[0019] Figure 2It is a schematic structural view of a separator according to an embodiment of the present invention;

[0020] Figure 3 It is a partially enlarged view of a sampling assembly according to an embodiment of the present invention;

[0021] Figure 4 It is a schematic structural view of a mounting member according to an embodiment of the present invention;

[0022] Figure 5 It is a schematic structural view of a distance compensation part after stretching according to an embodiment of the present invention;

[0023] Figure 6 It is a schematic structural view of a distance compensation part after contraction according to an embodiment of the present invention;

[0024] Figure 7 It is an assembly view of an electrical connector, a temperature sensor assembly, a first wire harness, a second wire harness, and a plugging part according to an embodiment of the present invention;

[0025] Figure 8 It is a schematic structural view of a circuit mounting board according to an embodiment of the present invention (the PCB board and the wire harness pad are welded by a gold finger);

[0026] Figure 9 It is a schematic structural view of a temperature sensor assembly according to an embodiment of the present invention;

[0027] Figure 10 It is another schematic structural view of a circuit mounting board according to an embodiment of the present invention (the PCB board and the wire harness pad are welded by a through-hole);

[0028] Figure 11 It is a cross-sectional view of an assembly and a separator according to an embodiment of the present invention;

[0029] Figure 12 It is a schematic structural view of a cable tie according to an embodiment of the present invention.

[0030] Reference numerals:

[0031] Sampling assembly 100;

[0032] Separator 1; Assembly groove 11; Plate body 12; First receiving groove 121; Second receiving groove 122; Heat conducting member assembly hole 123;

[0033] Assembly 13; Assembly groove 131; Assembly part 132; First sub-part 1321; Second sub-part 1322; Cable tie hole 15;

[0034] Sampling assembly 2; Electrical connector 21; Connection row 22; Output pole aluminum row 221; Battery cell series connection aluminum row 222; Temperature sensor assembly 23; Mounting plate 231; Second assembly hole 232; Positioning post 233; PCB board 234; Second strip-shaped hole 235; Thermistor 236; Wire pad 237; Epoxy frame 238; Circuit mounting board 24; Fuse 241; Second through hole 242; Positioning groove 243; Observation port 244;

[0035] Mounting part 3; Distance compensation part 31; Distance compensation section 311; First distance compensation section 312; Second distance compensation section 313; Mounting portion 32; First assembly hole 33;

[0036] First wire harness 4; Plugging part 41;

[0037] Second wire harness 5;

[0038] Sampling chip 6; Sampling chip pad 61; First pad body 62; First connection part 63;

[0039] Wire harness pad 7; Second pad body 71; Second connection part 72; First through hole 73;

[0040] Zip tie 8. Specific embodiments

[0041] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings, where 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 by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0042] Next, refer to Figures 1 - 12 to describe the sampling assembly 100 according to an embodiment of the present invention.

[0043] As Figures 1 - 6As shown in the figure, the sampling assembly 100 according to an embodiment of the present invention includes: a partition plate 1, the partition plate 1 is formed with an assembly groove 11, the assembly groove 11 extends in a first direction, and the first direction is perpendicular to the thickness direction of the partition plate 1; a sampling component 2, the sampling component 2 is used for electrically connecting with a battery cell of a battery device to collect parameter information of the battery cell; a mounting member 3, the mounting member 3 is assembled in the assembly groove 11, the mounting member 3 includes a distance compensation portion 31 and a plurality of mounting portions 32, the plurality of mounting portions 32 are arranged in sequence along the first direction, the sampling component 2 is mounted on the corresponding mounting portion 32, a distance compensation portion 31 is connected between any two adjacent mounting portions 32, along the thickness direction of the mounting member 3, the distance compensation portion 31 protrudes from at least one side of the mounting portion 32, the distance compensation portion 31 includes a plurality of distance compensation segments 311, the plurality of distance compensation segments 311 are connected in sequence along the first direction, and any two adjacent distance compensation segments 311 are bent and connected, the two distance compensation segments 311 at the ends are respectively connected to the two adjacent mounting portions 32, and the distance compensation portion 31 is configured to be deformable along the first direction.

[0044] Among them, the partition plate 1 can be but is not limited to being made of plastic (PC) material, rubber material, etc. The partition plate 1 is formed with an assembly groove 11, and the assembly groove 11 can be one, two or more. The assembly groove 11 is recessed towards the inside of the partition plate 1, the assembly groove 11 extends in a first direction, the first direction is the X direction in the figure, and the first direction is perpendicular to the thickness direction of the partition plate 1. The sampling component 2 is used for electrically connecting with a battery cell of a battery device. Further, the sampling component 2 can be electrically connected to the pole column of the battery cell to collect parameter information of the battery cell, so as to achieve the effect of transmitting parameters such as the voltage of the battery cell to the sampling component 2.

[0045] The sampling assembly 100 further includes a first wire harness 4, one end of the first wire harness 4 is connected to the sampling assembly 100, the other end of the first wire harness 4 has a plug portion 41, and the plug portion 41 is electrically connected to a BMS (battery management system or battery controller), so that voltage information can be transmitted to the battery controller through the first wire harness 4. The battery controller determines the state of charge, health level, etc. of the battery cell according to the voltage information of the battery cell, so as to provide a safe battery control management strategy to protect the safety of the user.

[0046] The mounting member 3 extends in the first direction. The mounting member 3 is assembled in the assembly groove 11. The mounting member 3 includes a distance compensation portion 31 and a plurality of mounting portions 32. The number of mounting portions 32 can be two, three, five or more. The plurality of mounting portions 32 are arranged in sequence along the first direction. The sampling assembly 2 is mounted on the corresponding mounting portion 32. As some embodiments of the present application, the mounting portion 32 can be configured as a thermal riveting post. By passing the thermal riveting post through the sampling assembly 2 and performing a thermal riveting process, the sampling assembly 2 can be mounted on the corresponding mounting portion 32. As some embodiments of the present application, the mounting portion 32 can be configured as a BOSS post. By passing a bolt through the sampling assembly 2 and threadedly mating with the BOSS post, the sampling assembly 2 can be mounted on the corresponding mounting portion 32.

[0047] A distance compensation portion 31 is connected between any two adjacent mounting portions 32. Along the thickness direction of the mounting member 3, the distance compensation portion 31 protrudes from at least one side of the mounting member 3 relative to the mounting portion 32. For example: along the thickness direction of the mounting member 3, the distance compensation portion 31 protrudes from one side of the mounting member 3 relative to the mounting portion 32, or, along the thickness direction of the mounting member 3, the distance compensation portion 31 protrudes from both sides of the mounting member 3 relative to the mounting portion 32.

[0048] The distance compensation portion 31 includes a plurality of distance compensation segments 311. For example: the number of distance compensation segments 311 can be two, three, five or more. The plurality of distance compensation segments 311 are connected in sequence along the first direction. The first direction is the Figure 1 X direction in, and any two adjacent distance compensation segments 311 are bent and connected. The two distance compensation segments 311 at the ends are respectively connected to the adjacent two mounting portions 32. Such a setting can make the arrangement of the plurality of distance compensation segments 311 reasonable, which is beneficial to the distance compensation portion 31 to deform along the first direction. Further, when the electric core expands and causes the distance compensation portion 31 to be stressed along the first direction to reach the first preset force value, the distance compensation portion 31 can deform along the first direction, thereby compensating for the displacement generated by the expansion of the electric core, which is beneficial to reducing the working interference of the electric core expansion on the sampling assembly 100 and reducing the risk of damage to the connection points between the components of the sampling assembly 100. Thus, it is beneficial for the sampling assembly 100 to monitor the battery in real time and accurately, and improve the use safety of the battery.

[0049] Specifically, the separator 1 is formed with two assembly grooves 11. The two assembly grooves 11 both extend in the first direction. The two mounting members 3 extending in the first direction are assembled in the corresponding assembly grooves 11. The sampling assembly 2 is electrically connected to the battery cells of the battery device to collect the parameter information of the battery cells. The sampling assembly 2 is also connected to the first wire harness 4. The first wire harness 4 transmits the voltage information and the like collected by the sampling assembly 2 to the battery controller, so that the battery controller determines the state of charge, health level, etc. of the battery cells according to the voltage information of the battery cells.

[0050] The mounting member 3 includes a distance compensation portion 31 and a plurality of mounting portions 32. The plurality of mounting portions 32 are arranged in sequence along the first direction. The PCB board of the sampling assembly 2 is riveted to the corresponding mounting portion 32, and a distance compensation portion 31 is connected between any two adjacent mounting portions 32. The distance compensation portion 31 includes seven distance compensation segments 311. Any two adjacent distance compensation segments 311 among the seven distance compensation segments 311 are bent and connected in sequence, and the two distance compensation segments 311 located at the ends are respectively connected to two adjacent mounting portions 32.

[0051] When the battery core of the battery device expands along the first direction, the pole column of the battery cell will displace along the first direction and transmit the displacement to the sampling assembly 2. Since the sampling assembly 2 is assembled to the corresponding mounting portion 32, the sampling assembly 2 will drive the corresponding mounting portion 32 to generate a displacement along the first direction. When the expansion displacement of the battery core is continuously transmitted and the force applied to the distance compensation portion 31 along the first direction reaches the first preset force value, at this time, the plurality of distance compensation segments 311 of the distance compensation portion 31 adjacent to the mounting portion 32 with displacement deform along the first direction, so that the distance compensation portion 31 undergoes a tensile deformation to compensate for the expansion distance of the battery core.

[0052] When the battery core of the battery device contracts along the first direction, the pole column of the battery cell will displace along the first direction and transmit the displacement to the sampling assembly 2. Since the sampling assembly 2 is assembled to the corresponding mounting portion 32, the sampling assembly 2 will drive the corresponding mounting portion 32 to generate a displacement along the first direction. When the contraction displacement of the battery core is continuously transmitted and the force applied to the distance compensation portion 31 along the first direction reaches the first preset force value, at this time, the plurality of distance compensation segments 311 of the distance compensation portion 31 adjacent to the mounting portion 32 with displacement deform along the first direction, so that the distance compensation portion 31 undergoes a contraction deformation to compensate for the contraction distance of the battery core.

[0053] Thus, by connecting a distance compensation portion 31 between any two adjacent mounting portions 32 and connecting the plurality of distance compensation segments 311 in sequence, when the battery core of the battery device expands and the force applied to the distance compensation portion 31 along the first direction reaches the first preset force value, the distance compensation portion 31 deforms along the first direction, which is beneficial to reducing the working interference of the battery core expansion on the sampling assembly 100 and reducing the risk of damage to the connection points between the components of the sampling assembly 100, thereby facilitating the sampling assembly 100 to monitor the battery in real time and accurately and improving the use safety of the battery.

[0054] In some embodiments of the present invention, such as Figures 4 - 6As shown, the multiple distance compensation segments 311 include a first distance compensation segment 312 and multiple second distance compensation segments 313. The multiple second distance compensation segments 313 are arranged at intervals in sequence along the first direction and all extend along the thickness direction of the mounting member 3. A first distance compensation segment 312 is connected between any two adjacent second distance compensation segments 313. Along the thickness direction of the mounting member 3, the end of the second distance compensation segment 313 is connected to the corresponding first distance compensation segment 312, and the two ends of each second distance compensation segment 313 at the end are respectively connected to the adjacent mounting portion 32 and the first distance compensation segment 312.

[0055] Among them, the number of the second distance compensation segments 313 can be two, three, four or more. In this application, taking the second distance compensation segments 313 being set to four as an example for illustration, such a setting can reduce the risk that insufficient second distance compensation segments 313 cannot fully compensate for the expansion or contraction displacement of the battery cell, and can also reduce the risk of increased production costs caused by excessive second distance compensation segments 313. Along the first direction, the multiple second distance compensation segments 313 are arranged at intervals in sequence, and the multiple second distance compensation segments 313 all extend along the thickness direction of the mounting member 3. A first distance compensation segment 312 is connected between any two adjacent second distance compensation segments 313.

[0056] Along the thickness direction of the mounting member 3, the end of the second distance compensation segment 313 is connected to the corresponding first distance compensation segment 312, and the two ends of each second distance compensation segment 313 at the end are respectively connected to the adjacent mounting portion 32 and the first distance compensation segment 312. Such a setting can make the arrangement of the first distance compensation segment 312 and the second distance compensation segment 313 reasonable, which is conducive to the sequential bending arrangement of the first distance compensation segment 312 and the second distance compensation segment 313, and is conducive to the first distance compensation segment 312 and the second distance compensation segment 313 deforming smoothly along the first direction, so that the distance compensation portion 3131 can smoothly compensate for the expansion distance of the battery cell.

[0057] When the battery cell of the battery device expands along the first direction, the pole post of the battery monomer will displace along the first direction and transmit the displacement to the sampling assembly 2. Since the sampling assembly 2 is assembled to the corresponding mounting portion 32, the sampling assembly 2 will drive the corresponding mounting portion 32 to generate a displacement along the first direction. At this time, the second distance compensation segment 313 in the distance compensation portion 31 adjacent to the displaced mounting portion 32 deforms along the first direction, so that the distance compensation portion 31 stretches to compensate for the expansion distance of the battery cell.

[0058] When the battery cell of the battery device shrinks in the first direction, the pole column of the battery monomer will displace in the first direction and transmit the displacement to the sampling component 2. Since the sampling component 2 is assembled to the corresponding installation part 32, the sampling component 2 will drive the corresponding installation part 32 to generate a displacement in the first direction. At this time, the second distance compensation section 313 in the distance compensation part 31 adjacent to the displaced installation part 32 deforms in the first direction, so that the distance compensation part 31 stretches to compensate for the shrinkage distance of the battery cell.

[0059] In some embodiments of the present invention, as Figure 4 shown, the second distance compensation section 313 located at the end is perpendicular to the adjacent installation part 32.

[0060] Among them, the second distance compensation section 313 located at the end is perpendicular to the adjacent installation part 32. Such a setting can make the arrangement of the second distance compensation section 313 and the adjacent installation part 32 reasonable. Whether the battery cell expands or shrinks in the first direction, the second distance compensation section 313 can expand or shrink in the first direction in a timely manner to quickly compensate for the expansion distance or shrinkage distance of the battery cell, reduce the working interference of the battery cell expansion on the sampling assembly 100, and reduce the risk of damage to the connection points between the components of the sampling assembly 100. Therefore, it is beneficial for the sampling assembly 100 to monitor the battery in real time and accurately, and improve the use safety of the battery.

[0061] In some embodiments of the present invention, as Figure 4 shown, the first distance compensation section 312 is perpendicular to the adjacent second distance compensation section 313.

[0062] Among them, the first distance compensation section 312 is perpendicular to the adjacent second distance compensation section 313. Such a setting can make the arrangement of the first distance compensation section 312 and the adjacent second distance compensation section 313 reasonable, which is beneficial for the first distance compensation section 312 and the adjacent second distance compensation section 313 to be arranged in a bent manner in sequence. And by making the first distance compensation section 312 perpendicular to the adjacent second distance compensation section 313, whether the battery cell expands or shrinks in the first direction, the second distance compensation section 313 can expand or shrink in the first direction in a timely manner to quickly compensate for the expansion distance or shrinkage distance of the battery cell, reduce the working interference of the battery cell expansion on the sampling assembly 100, and reduce the risk of damage to the connection points between the components of the sampling assembly 100. Therefore, it is beneficial for the sampling assembly 100 to monitor the battery in real time and accurately, and improve the use safety of the battery.

[0063] In some embodiments of the present invention, as Figures 4 - 6 shown, along the thickness direction of the installation part 3, a plurality of second distance compensation sections 313 are located on the same side of the installation part 3.

[0064] Among them, along the thickness direction of the mounting member 3, multiple second distance compensation sections 313 are all located on the same side of the mounting member 3, so that the arrangement design of the multiple second distance compensation sections 313 is reasonable, which is conducive to the smooth assembly of the mounting member 3 in the assembly groove 11. Furthermore, the multiple second distance compensation sections 313 are all located on the side of the mounting member 3 away from the bottom wall of the assembly groove 11, so as to improve the fit between the mounting member 3 and the bottom wall of the assembly groove 11, thereby reducing the risk of the mounting member 3 moving out of the assembly groove 11, which is conducive to improving the structural stability and reliability of the sampling assembly 100.

[0065] In some embodiments of the present invention, Figures 4 - 6 As shown, at least one first distance compensation section 312 is located on a side of the mounting member 3 where the second distance compensation section 313 is formed.

[0066] Among them, as some embodiments of the present application, a first distance compensation section 312 is located on the side of the mounting member 3 where the second distance compensation section 313 is formed. As some embodiments of the present application, the first distance compensation section 312 is located on the side of the mounting member 3 where the second distance compensation section 313 is formed, so that the first distance compensation can be smoothly connected between two adjacent second distance compensation sections 313, so that the multiple distance compensation sections 311 can be bent and connected in sequence, and when the battery cell of the battery device expands and causes the distance compensation part 31 to be subjected to a force in the first direction that reaches a first preset force value, the distance compensation part 31 is deformed in the first direction, which is beneficial to further reduce the interference of the battery cell expansion on the operation of the sampling assembly 100, and further reduce the risk of damage to the connection between the components of the sampling assembly 100.

[0067] In some embodiments of the present invention, Figure 4 As shown, the number of the second distance compensation segments 313 is greater than or equal to four, and at least one first distance compensation segment 312 and the plurality of mounting portions 32 are coplanar.

[0068] Among them, the number of second distance compensation segments 313 is greater than or equal to four, for example: the number of second distance compensation segments 313 can be four, five or more. Such a setting can increase the compensation range of the distance compensation part 31. By setting the number of second distance compensation segments 313 greater than or equal to four, when the battery cell expands or contracts more significantly, the second distance compensation segment 313 can fully compensate for the expansion or contraction distance of the battery cell, thereby further improving the working reliability of the sampling assembly 100.

[0069] At least one first distance compensation section 312 and a plurality of mounting portions 32 are coplanar. For example, one first distance compensation section 312 and a plurality of mounting portions 32 are coplanar, or all the first distance compensation sections 312 are coplanar with the plurality of mounting portions 32. Such an arrangement can make the first distance compensation section 312 have a certain height in the thickness direction of the mounting portion 32, so that the second distance compensation section 313 can have a certain distance in the thickness direction of the mounting portion 32, which is beneficial to further increasing the compensation range of the distance compensation portion 31, thereby fully compensating for the expansion or contraction distance of the battery cell.

[0070] In some embodiments of the present invention, as Figure 4 shown, a plurality of second distance compensation sections 313 are parallel to each other.

[0071] Among them, the plurality of second distance compensation sections 313 being parallel to each other can make the arrangement of the plurality of second distance compensation sections 313 reasonable. No matter whether the battery cell expands or contracts in the first direction, the plurality of second distance compensation sections 313 can respond in a timely manner, that is, stretch or contract in the first direction. The plurality of second distance compensation sections 313 being parallel to each other can also make the structure more regular, which is beneficial to improving the stretching and contraction efficiency of the second distance compensation section 313 while maintaining the aesthetics of the second distance compensation section 313.

[0072] In some embodiments of the present invention, as Figure 4 shown, the first distance compensation section 312 is parallel to the adjacent mounting portion 32.

[0073] Among them, the first distance compensation section 312 being parallel to the adjacent mounting portion 32 is beneficial to making the first distance compensation section 312 perpendicular to the second distance compensation section 313, so that the first distance compensation section 312 and the second distance compensation section 313 can be bent and connected in sequence. When the expansion of the battery cell of the battery device causes the distance compensation portion 31 to be stressed in the first direction to reach the first preset force value, the distance compensation portion 31 deforms in the first direction to compensate for the contraction or expansion distance of the battery cell. The first distance compensation section 312 being parallel to the adjacent mounting portion 32 can also make the structure more regular, which is beneficial to improving the stretching and contraction efficiency of the second distance compensation section 313 while maintaining the aesthetics of the second distance compensation section 313.

[0074] In some embodiments of the present invention, as Figure 1 shown, the mounting member 3 is formed with a plurality of first assembly holes 33, the plurality of first assembly holes 33 are arranged in sequence in the first direction, and at least one first assembly hole 33 is configured as a strip-shaped hole extending in the first direction.

[0075] Among them, the mounting member 3 is formed with a plurality of first assembly holes 33. For example, the mounting member 3 is formed with two, three or more first assembly holes 33, and the plurality of first assembly holes 33 are arranged in sequence along the first direction. At least one first assembly hole 33 is configured as a strip-shaped hole extending along the first direction. As some embodiments of the present application, one first assembly hole 33 is configured as a strip-shaped hole extending along the first direction. As some embodiments of the present application, all the first assembly holes 33 are configured as strip-shaped holes extending along the first direction. By configuring at least one first assembly hole 33 as a strip-shaped hole extending along the first direction, the error in production can be compensated, so that the mounting member 3 can be smoothly assembled into the assembly groove 11.

[0076] In some embodiments of the present invention, as Figure 4 shown, the mounting member 3 is an integrally formed part.

[0077] Among them, the mounting member 3 is integrally formed, that is to say, the mounting member 3 is configured as an integrally formed part. The integrally formed part has good structural strength. By configuring the mounting member 3 as an integrally formed part, the reliability of the connection between the distance compensation part 31 and the mounting part 32 can be improved, and the probability of breakage of the distance compensation part 31 or the mounting part 32 can be reduced, thereby improving the structural reliability of the mounting member 3. Further, by configuring the mounting member 3 as an integrally formed part, the number of molds in the production process of the sampling assembly 100 can be reduced, thereby reducing the production cost of the sampling assembly 100.

[0078] According to the battery device of the embodiment of the present invention, it includes the sampling assembly 100 of the battery device in the above embodiment. By connecting a distance compensation part 31 between any two adjacent mounting parts 32 and connecting a plurality of distance compensation segments 311 in sequence by bending, when the expansion of the battery cell of the battery device causes the distance compensation part 31 to be stressed along the first direction to reach the first preset force value, the distance compensation part 31 deforms along the first direction, which is beneficial to reducing the working interference of the expansion of the battery cell on the sampling assembly 100 and reducing the risk of damage to the connection between the components of the sampling assembly 100, so as to be beneficial to the sampling assembly 100 to monitor the battery in real time and accurately, and improve the use safety of the battery.

[0079] As some embodiments of the present application, the thickness of the mounting member 3 can be 0.25 mm.

[0080] As Figure 1 shown, according to the sampling assembly 100 of the present invention, it includes: a separator 1, the separator 1 includes a plate body 12 and a fitting 13, the fitting 13 is arranged on the plate body 12, the fitting 13 defines an assembly groove 131, and the assembly groove 131 penetrates the fitting 13 along the first direction; an electrical connector 21, the electrical connector 21 is arranged on the plate body 12 and is adapted to be electrically connected to the battery cell; a first wire harness 4, the first wire harness 4 is electrically connected to the electrical connector 21 and part of its structure is assembled in the assembly groove 131.

[0081] Among them, the isolation plate 1 can be but not limited to being constructed of plastic (PC) material, rubber material, etc. Along the height direction of the sampling assembly 100, one end of the assembly part 13 is fixed to the plate body 12. As some embodiments of the present application, the plate body 12 and the assembly part 13 are integrally formed. As some embodiments of the present application, the plate body 12 and the assembly part 13 are bonded and connected. The end of the assembly part 13 facing away from the plate body 12 is open so that the assembly part 13 defines an assembly groove 131. The assembly groove 131 can provide an assembly position for the first wiring harness 4, and the assembly part 13 has a simple structure, which is conducive to reducing the difficulty of assembling the first wiring harness 4 and improving the assembly efficiency and economic use of the sampling assembly 100. Along the first direction, the assembly groove 131 runs through the assembly part 13, so that at least a portion of the first wiring harness 4 can be smoothly assembled in the assembly groove 131 from the open end of the assembly groove 131, and can be moved along the first direction.

[0082] The electrical connector 21 is provided on the board body 12. For example, the electrical connector 21 can be provided on the board body 12 by riveting, clamping, etc., but not limited to. The electrical connector 21 can be electrically connected to the battery cell. Further, the electrical connector 21 can be electrically connected to the pole of the battery cell to transmit the voltage of the battery cell. Along the extension direction of the first wiring harness 4, one end of the first wiring harness 4 is electrically connected to the electrical connector 21, and the other end of the first wiring harness 4 is electrically connected to the BMS (battery management system or battery controller), so that the voltage information can be transmitted to the battery controller through the first wiring harness 4. The battery controller determines the charge state and health level of the battery cell according to the voltage information of the battery cell, thereby providing a safe battery control management strategy to protect the safety of users.

[0083] The first direction is the expansion direction of the battery cell. When the battery cell expands after being used for a period of time, the pole will drive the electrical connector 21 to move along the first direction, thereby pulling the first wiring harness 4. Since the first wiring harness 4 is movable along the first direction in the assembly groove 131, the interference of the battery cell expansion on the operation of the first wiring harness 4 can be reduced, and the risk of damage to the first wiring harness 4 due to excessive pulling can be reduced, which is beneficial for the sampling assembly 100 to monitor the battery in real time and accurately, thereby improving the safety of battery use.

[0084] Specifically, when the battery needs to be monitored, the electrical connector 21 can be riveted to the plate body 12, and the electrical connector 21 can be connected to the pole of the battery cell. One end of the first wire harness 4 is welded to the electrical connector 21, and the other end of the first wire harness 4 is connected to the battery controller, so that the voltage of the battery cell can be transmitted to the battery controller through the electrical connector 21 and the first wire harness 4. Part of the structure of the first wire harness 4 is assembled to the assembly groove 131 from the open end of the assembly groove 131, and the assembly groove 131 passes through the assembly part 13 along the first direction, so that the first wire harness 4 can move in the assembly groove 131 along the first direction.

[0085] Thus, by setting the assembly groove 131 to penetrate the fitting 13 in the first direction, the first wire harness 4 is electrically connected to the electrical connector 21 and part of its structure is assembled in the assembly groove 131. When the battery cell expands and pulls the first wire harness 4, the first wire harness 4 can move in the assembly groove 131 in the first direction, which is beneficial to reducing the working interference of the cell expansion on the first wire harness 4 and reducing the risk of damage to the first wire harness 4. Therefore, it is beneficial for the sampling assembly 100 to monitor the battery in real time and accurately, improving the safety of battery use. Moreover, the structure of the fitting 13 is simple, which is beneficial to reducing the assembly difficulty of the first wire harness 4 and improving the assembly efficiency and use economy of the sampling assembly 100.

[0086] In some examples of the present invention, as Figure 3 shown, the fitting 13 may include: two assembly parts 132, and the two assembly parts 132 are spaced apart and correspondingly arranged to define the assembly groove 131.

[0087] Among them, the two assembly parts 132 are spaced apart and correspondingly arranged to define the assembly groove 131 that penetrates the fitting 13 in the first direction between the two assembly parts 132. Such a setting can make the forming method of the assembly groove 131 reasonable, reduce the forming difficulty of the assembly groove 131, and moreover, the structure is simple, which is beneficial to reducing the assembly difficulty of the first wire harness 4 assembled in the assembly groove 131 and improving the assembly efficiency of the first wire harness 4.

[0088] In some examples of the present invention, as Figure 11 shown, the assembly part 132 may include: a first sub-part 1321 and a second sub-part 1322. The second sub-part 1322 is connected between the first sub-part 1321 and the plate body 12, and the spacing distance between the two second sub-parts 1322 is greater than the spacing distance between the two first sub-parts 1321.

[0089] Among them, the first sub-part 1321 and the second sub-part 1322 can be connected by, but not limited to, integral molding or bonding. The second sub-part 1322 is connected between the corresponding first sub-part 1321 and the plate body 12, and the spacing distance between the two second sub-parts 1322 is greater than the spacing distance between the two first sub-parts 1321. Such a setting can make the first wire harness 4 reliably snap into the assembly groove 131 and be movable in the assembly groove 131 in the first direction.

[0090] Specifically, align the wire harness with the open end of the assembly groove 131. During the assembly process, the wire harness first drives the two first sub-parts 1321 to move away from each other, so that the wire harness can be smoothly clamped between the two second sub-parts 1322. After the wire harness completely passes through the first sub-parts 1321, the first sub-parts 1321 move towards each other under the action of the self-elastic force of the assembly part 132, so that the assembly part 132 returns to its initial state. Since the distance between the two second sub-parts 1322 is greater than the distance between the two first sub-parts 1321, the two first sub-parts 1321 can limit the first wire harness 4 from moving out of the assembly groove 131 from the open end of the assembly groove 131, thereby achieving the effect that the first wire harness 4 can move in the first direction in the assembly groove 131 without moving out of the assembly groove 131, and further improving the relative reliability and working stability of the position of the first wire harness 4.

[0091] In some examples of the present invention, such as Figure 3 and Figure 11 shown, there are multiple fitting parts 13, and the multiple fitting parts 13 constitute multiple assembly groups. Each assembly group includes multiple fitting parts 13 arranged at intervals in the first direction. There are multiple first wire harnesses 4, and the multiple first wire harnesses 4 and the multiple fitting parts 13 are arranged in one-to-one correspondence.

[0092] Among them, there are multiple fitting parts 13. For example, the fitting parts 13 can be two, eight, sixteen or more. The multiple fitting parts 13 constitute multiple assembly groups. For example, the multiple fitting parts 13 constitute two, three or more assembly groups. In this application, it is taken as an example that the multiple fitting parts 13 constitute two assembly groups, and each assembly group includes eight fitting parts 13 arranged at intervals in the first direction. Such a setting can make the arrangement of the assembly groups and the fitting parts 13 reasonable, which is beneficial for the fitting parts 13 to be arranged according to the arrangement mode of the battery cells. There are multiple first wire harnesses 4. For example, the first wire harnesses 4 can be two, eight, sixteen or more. The number of the first wire harnesses 4 is adapted to the number of the fitting parts 13, so that the multiple first wire harnesses 4 and the multiple fitting parts 13 are arranged in one-to-one correspondence. That is to say, one first wire harness 4 corresponds to one fitting part 13. Further, one battery cell corresponds to one first wire harness 4 and one fitting part 13, so that any battery cell can transmit voltage information to the battery controller through the corresponding first wire harness 4, and any first wire harness 4 can be assembled to the corresponding fitting part 13, which is beneficial for the battery controller to comprehensively monitor the voltage information of multiple battery cells, further improving the use safety of the battery, and also beneficial for improving the use reliability of the multiple first wire harnesses 4.

[0093] In some examples of the present invention, such as Figure 1 、 Figure 3 and Figure 7 shown, partial structures of the multiple first wire harnesses 4 assembled with the same assembly group are bundled.

[0094] Among them, partial structures of multiple first wire harnesses 4 assembled with the same set of assembly groups are bundled. When there are two sets of assembly groups, multiple first wire harnesses 4 corresponding to multiple fittings 13 in one set of assembly groups are bundled, and multiple first wire harnesses 4 corresponding to multiple fittings 13 in the other set of assembly groups are bundled. Such a setting can improve the regularity of the first wire harness 4 and reduce the risk of damage or even leakage of the first wire harness 4 caused by winding or knotting, thereby improving the monitoring accuracy and real-time performance of the battery controller for the voltage of battery cells.

[0095] In some examples of the present invention, such as Figure 1 and Figure 12 shown, the sampling assembly 100 may further include: a cable tie 8, and the bundled part of multiple first wire harnesses 4 is fixed to the board body 12 through the cable tie 8.

[0096] Among them, as Figure 2 shown, the isolation board 1 may have a cable tie hole 15, and the cable tie 8 may pass through the cable tie hole 15 so that the bundled part of multiple first wire harnesses 4 is fixed to the board body 12 through the cooperation of the cable tie 8 and the cable tie hole 15. Fixing the bundled part to the board body 12 through the cable tie 8 can further improve the regularity of the first wire harness 4 and reduce the risk of friction between the first wire harnesses 4 caused by shaking, thereby reducing the risk of damage or even leakage of the first wire harness 4, and thus improving the monitoring accuracy and real-time performance of the battery controller for the voltage of battery cells.

[0097] In some examples of the present invention, such as Figure 1 shown, the sampling assembly 100 further includes: multiple connection rows 22, the board body 12 has multiple first receiving grooves 121, the multiple connection rows 22 and the multiple first receiving grooves 121 correspond one by one, and at least part of the connection row 22 is received in the corresponding first receiving groove 121. The bottom wall of the first receiving groove 121 has a mating hole (not shown in the figure), the mating hole is adapted to receive the pole post of the battery cell, the connection row 22 is adapted to be electrically connected to the pole post of the battery cell, and the connection row 22 is electrically connected to the electrical connector 21.

[0098] Among them, the number of connection rows 22 may be two, eight, sixteen or more. The board body 12 has multiple first receiving grooves 121, and the number of the first receiving grooves 121 may be adapted to the number of connection rows 22 so that the multiple connection rows 22 and the multiple first receiving grooves 121 correspond one by one. That is to say, one connection row 22 corresponds to one first receiving groove 121, so that at least part of any connection row 22 can be received in the corresponding first receiving groove 121, which is beneficial for the first receiving groove 121 to limit the connection row 22 and further improve the working stability of the sampling assembly 100.

[0099] The electrical connector 21 and the first wire harness 4 can also be provided in multiple numbers, and the numbers of the electrical connector 21 and the first wire harness 4 are adapted to the number of the connection rows 22, so that the multiple connection rows 22, the multiple first wire harnesses 4, and the multiple electrical connectors 21 correspond one by one. That is to say, one connection row 22 corresponds to one first wire harness 4 and one electrical connector 21. The bottom wall of the first receiving groove 121 has a mating hole, and the mating hole can avoid the pole post of the battery cell. The pole post of the battery cell can pass through the corresponding mating hole and be electrically connected to the corresponding connection row 22 in the corresponding first receiving groove 121, so that the voltage information of the battery cell can be transmitted to the corresponding connection row 22 through the pole post. The connection row 22 is electrically connected to the electrical connector 21, so that the voltage information can be transmitted to the battery controller through the electrical connector 21 and the first wire harness 4 in sequence, which is convenient for the battery controller to monitor the state of the battery cell in real time according to the received voltage information and improve the safety of the battery device.

[0100] In some examples of the present invention, as Figure 1 and Figure 9 shown, the sampling assembly 100 may further include: at least one temperature sensor assembly 23 and a second wire harness 5. The temperature sensor assembly 23 is fitted with the cover body of the battery cell. The temperature sensor assembly 23 may include: a mounting plate 231, a PCB board 234, and a thermistor 236. The mounting plate 231 is provided on the board body 12, the PCB board 234 is provided on the mounting plate 231, and the thermistor 236 is provided on the PCB board 234. The second wire harness 5 is electrically connected to the thermistor 236.

[0101] Among them, the temperature sensor assembly 23 can be provided in two, three or more numbers. The temperature sensor assembly 23 is fitted with the cover body of the battery cell, so that the temperature information of the battery cell can be transmitted to the temperature sensor assembly 23. The mounting plate 231 can be, but is not limited to, provided on the board body 12 by means of riveting, screwing, etc. The PCB board 234 can be, but is not limited to, provided on the mounting plate 231 by means of riveting, screwing, etc. Further, positioning posts 233 can be provided on the mounting plate 231, and second strip holes 235 can be provided on the PCB board 234. The second strip holes 235 extend along the first direction, and the positioning posts 233 pass through the second strip holes 235, so that the PCB board 234 can be arranged at a suitable position on the mounting plate 231, and thus the PCB board 234 is mounted on the board body 12 through the mounting plate 231.

[0102] As some embodiments of the present application, the temperature sensor assembly 23 may further include a wire pad 237 and an epoxy frame 238. The epoxy frame 238 may be, but is not limited to, constructed of a resin material, which is beneficial to protecting the thermistor 236, thereby improving the working reliability of the thermistor 236. The thermistor 236 may be soldered to the PCB board 234, and the second wire harness 5 is soldered to the thermistor 236 to electrically connect the second wire harness 5 to the thermistor 236. The second wire harness 5 and the first wire harness 4 are bundled and connected to the battery controller, reducing the risk of damage or even leakage of the second wire harness 5 caused by winding or knotting. Moreover, after the temperature information of the battery cell is transmitted to the temperature sensor assembly 23, it can be sequentially transmitted to the battery controller through the thermistor 236 and the second wire harness 5. The battery controller monitors the state of the battery cell in real time according to the received temperature information, further improving the safety of the battery device.

[0103] In some examples of the present invention, as Figures 1 - 2 shown, the board body 12 has at least one second receiving groove 122. The at least one second receiving groove 122 and the at least one temperature sensor assembly 23 correspond one by one, and at least a part of the temperature sensor assembly 23 is received in the corresponding second receiving groove 122; and / or, the mounting plate 231 has a second assembly hole 232. The temperature sensor assembly 23 further includes a heat conducting member, at least a part of the heat conducting member is assembled in the second assembly hole 232 and contacts the side of the PCB board 234 facing the board body 12. Along the thickness direction of the mounting plate 231, the heat conducting member corresponds to the thermistor 236.

[0104] Among them, the board body 12 has at least one second receiving groove 122. For example, the board body 12 has one, two or more second receiving grooves 122. The number of the temperature sensor assemblies 23 is adapted to the number of the second receiving grooves 122, so that the at least one second receiving groove 122 and the at least one temperature sensor assembly 23 correspond one by one. That is to say, one second receiving groove 122 corresponds to one temperature sensor assembly 23, so that any temperature sensor assembly 23 can be at least partially received in the corresponding second receiving groove 122, which is beneficial to the second receiving groove 122 to limit the temperature sensor assembly 23 and improve the working stability of the temperature sensor assembly 23.

[0105] The mounting plate 231 may have a second assembly hole 232. The temperature sensor assembly 23 may further include a heat conducting member (not shown in the figure). At least a part of the heat conducting member is assembled in the second assembly hole 232, and a heat conducting member assembly hole 123 may be formed in the bottom wall of the second receiving groove 122. The heat conducting member is assembled in the heat conducting member assembly hole 123, and the heat conducting member contacts the side of the PCB board 234 facing the board body 12. As some embodiments of the present application, the heat conducting member may, but is not limited to, be bonded to the PCB board 234 through back glue, etc., and the heat conduction coefficient of the heat conducting member ≥ 2W / m.k. Along the thickness direction of the mounting plate 231, the heat conducting member corresponds to the thermistor 236, so that the heat of the battery cell can be smoothly conducted to the thermistor 236 through the heat conducting member, and then transmitted to the battery controller through the second wire harness 5, so that the battery controller can monitor the state of the battery cell in real time according to the received temperature information, further improving the safety of the battery device.

[0106] As some embodiments of the present application, the bottom wall of the second receiving groove 122 may further have heat riveting posts, so that the mounting plate 231 can be heat riveted to the second receiving groove 122.

[0107] The battery according to the present invention includes the sampling assembly 100 of the above battery. By providing that the assembly groove 131 penetrates through the fitting 13 along the first direction, the first wire harness 4 is electrically connected to the electrical connector 21 and part of the structure is assembled in the assembly groove 131. When the battery cell expands and pulls the wire harness, the first wire harness 4 can move along the first direction in the assembly groove 131, which is beneficial to reducing the working interference of the cell expansion on the first wire harness 4 and reducing the risk of damage to the first wire harness 4, thereby being beneficial to the sampling assembly 100 to monitor the battery in real time and accurately, improving the use safety of the battery. Moreover, the structure of the fitting 13 is simple, which is beneficial to reducing the assembly difficulty of the first wire harness 4 and improving the assembly efficiency and use economy of the sampling assembly 100.

[0108] As Figure 3 、 Figure 8 and Figure 10 shown, the sampling assembly 2 for a battery according to an embodiment of the present invention includes: a circuit mounting plate 24 and a sampling piece 6.

[0109] The distance compensation part 31 can absorb the displacement of the cell expansion. The combination of the circuit mounting plate 24 and the sampling piece 6 can cut off the circuit in case of overcurrent to protect the module. The isolation plate is formed of PC material, avoiding the use of the high-value material polyimide (pi). As a flexible carrier, the PC material is more economical.

[0110] The circuit mounting plate 24 has a fuse 241, and the fuse 241 is adapted to be electrically connected to the first wire harness 4 of the battery; the sampling piece 6 is electrically connected to the fuse 241 and is adapted to be electrically connected to the battery cell.

[0111] It should be noted that the circuit mounting board 24 described below is a Printed-Circuit-Board (printed circuit board), and this will not be elaborated further below.

[0112] In some embodiments of the present application, the battery cell has a pole post, the circuit mounting board 24 has a wire harness pad 7 and a sampling chip pad 61. The sampling chip 6 can be electrically connected to the pole post by welding, or the sampling chip 6 and the pole post can be electrically connected through other components. The fuse 241 is etched on the circuit mounting board 24. The sampling chip 6 is electrically connected to the sampling chip pad 61, the sampling chip pad 61 is electrically connected to the fuse 241, the fuse 241 is electrically connected to the wire harness pad 7, and the wire harness pad 7 is electrically connected to the first wire harness 4, so that the pole post of the battery cell is electrically connected to the first wire harness 4. The first wire harness 4 is electrically connected to the battery controller, and the battery controller can be configured as a BMS (Battery Management System).

[0113] The material of the sampling chip 6 can be, but is not limited to, copper, nickel, etc. In some embodiments of the present application, the sampling chip 6 is configured as a nickel chip. In some embodiments of the present application, as Figure 8 shown, the surface of the sampling chip 6 has an observation port 244, and it is possible to observe whether the weld is qualified through the observation port 244.

[0114] It should be noted that the circuit mounting board 24 has a low material cost, and can only be used as the carrier of the fuse 241. The long-distance transmission of voltage, temperature signals, etc. can be transmitted through the first wire harness 4. The first wire harness 4 can be configured as a wire harness or an FFC (Flexible Flat Cable). Such a setting can effectively save the etching area, simplify the process flow of the circuit mounting board 24, is beneficial to improving the production efficiency of the sampling component 2, and can reduce the cost of the sampling component 2.

[0115] It should be noted that the fuse 241 plays an overcurrent protection role. The first wire harness 4 of the battery is responsible for transmitting the electrical signals collected from the battery cell. During the charging and discharging process of the battery cell, due to problems such as battery cell failure and external short circuit, the current in the first wire harness 4 may increase abnormally. At this time, the fuse 241 electrically connected to the first wire harness 4 can quickly blow, reducing the risk of a large current passing through the first wire harness 4 and the circuit mounting board 24, thereby protecting the battery cell, sampling chip 6, first wire harness 4, and BMS of the battery.

[0116] Thus, by using a circuit mounting board 24 (Printed-Circuit-Board) for the sampling component 2 of the battery, compared with the technical solution using an FPC (Flexible-Printed-Circuit) board, the process flow can be simplified, the production cycle can be shortened, and the cost of the sampling component 2 can be reduced. By electrically connecting the fuse 241 to the first wire harness 4 of the battery and electrically connecting the sampling chip 6 to the fuse 241 and to the battery cell, the sampling component 2 can be automatically fused when short-circuited or when the current is too large, which is beneficial to improving the safety of the sampling component 2.

[0117] In some embodiments of the present invention, such as Figure 8 and Figure 10 As shown, the circuit mounting board 24 has a sampling chip pad 61, the sampling chip 6 is welded to the sampling chip pad 61, and one end of the fuse 241 is electrically connected to the sampling chip pad 61.

[0118] Among them, as shown in FIG.-FIG., the sampling chip pad 61 is welded to the circuit mounting board 24. As some embodiments of the present application, the sampling chip pad 61 and the circuit mounting board 24 can be welded and connected by the way of gold finger welding. Or, as some embodiments of the present application, the sampling chip 6 and the sampling chip pad 61 can be welded and connected by the way of through-hole welding. The fuse 241 has opposite ends, one of which is electrically connected to the sampling chip pad 61 and the other end is electrically connected to the wire harness pad 7.

[0119] By making the circuit mounting board 24 have a sampling chip pad 61, it is convenient for the sampling chip 6 to be connected to the circuit mounting board 24 through the sampling chip pad 61, so that the cell can be stably electrically connected to the circuit mounting board 24, which is beneficial to improving the accuracy of the sampling component 2. And such a setting can reduce the connection difficulty between the fuse 241 and the sampling chip 6 and improve the production efficiency of the sampling component 2.

[0120] In some embodiments of the present invention, such as Figure 8 and Figure 10 As shown, the circuit mounting board 24 has a wire harness pad 7, and the other end of the fuse 241 is electrically connected to the wire harness pad 7.

[0121] As some embodiments of the present application, such as Figure 8 and Figure 10 As shown, the wire harness pad 7 and the circuit mounting board 24 are welded and connected by the way of gold finger welding. As some embodiments of the present application, such as Figure 8 and Figure 10As shown, the wire harness pad 7 and the circuit mounting board 24 are welded and connected by means of through-hole welding. The fuse 241 has opposite ends, one end of which is electrically connected to the sampling chip pad 61 and the other end is electrically connected to the wire harness pad 7. As some embodiments of the present application, the fuse 241 is connected to the sampling chip pad 61 by welding. As some embodiments of the present application, the fuse 241 is connected to the wire harness pad 7 by welding.

[0122] By making the circuit mounting board 24 have a wire harness pad 7, it is possible to facilitate the electrical connection between the first wire harness 4 and the circuit mounting board 24, and the fuse 241 can be connected between the first wire harness 4 and the sampling chip 6. When the battery sampling assembly 2 works, the electrical signal of the battery cell is transmitted from the sampling chip 6 and the circuit mounting board 24 to the first wire harness 4, which can provide a stable transmission path for the electrical signal, ensuring that the sampling assembly 2 can obtain accurate information of the battery cell in real time, so as to realize the accurate monitoring of the battery state. In addition, the wire harness pad 7 also provides a reliable mechanical fixing point for the first wire harness 4, fixing the position of the first wire harness 4 on the circuit mounting board 24, which is beneficial to improving the reliability of use of the sampling assembly 2.

[0123] In some embodiments of the present invention, as Figure 8 and Figure 10 shown, the sampling chip pad 61 includes a first pad body 62 and a plurality of first connecting portions 63. The first connecting portions 63 are connected to the first pad body 62, and the first connecting portions 63 are electrically connected to at least one fuse 241.

[0124] Among them, the first connecting portion 63 is connected to the first pad body 62. As some embodiments of the present application, the manner in which the first connecting portion 63 is connected to the first pad body 62 may be, but is not limited to, welding, bolt connection, etc. As some embodiments of the present application, the first connecting portion 63 and the first pad body 62 are integrally formed. The number of the first connecting portions 63 is multiple, and the number of the first connecting portions 63 may be, but is not limited to, two, three, four, etc. As some embodiments of the present application, as Figure 8 shown, three first connecting portions 63 are integrally formed with the first pad body 62.

[0125] As some embodiments of the present application, the first connecting portion 63 is electrically connected to one fuse 241. As some embodiments of the present application, the first connecting portion 63 is electrically connected to a plurality of fuses 241. As some embodiments of the present application, among the plurality of first connecting portions 63, some first connecting portions 63 are respectively electrically connected to one fuse 241, and the other first connecting portions 63 are respectively electrically connected to a plurality of fuses 241.

[0126] By making the sampling chip pad 61 include a first pad body 62 and a plurality of first connection parts 63, it is possible to facilitate the electrical connection between the sampling chip pad 61 and a plurality of fuses 241, reduce the manufacturing difficulty of the sampling assembly 2, and moreover, an overcurrent protection can be formed on the circuit mounting board 24, which is beneficial to improving the safety performance of the sampling assembly 2.

[0127] In some embodiments of the present invention, as Figure 8 and Figure 10 shown, there are a plurality of wire harness pads 7, and at least one wire harness pad 7 includes a second pad body 71 and a second connection part 72. The second connection part 72 is connected to the second pad body 71, and the second connection part 72 is electrically connected to the fuse 241.

[0128] Among them, the number of wire harness pads 7 is a plurality. The number of wire harness pads 7 can be, but is not limited to, two, three, four, etc. As some embodiments of the present application, among the plurality of wire harness pads 7, at least one wire harness pad 7 includes a second pad body 71 and a second connection part 72. For example, among the plurality of wire harness pads 7, all wire harness pads 7 include a second pad body 71 and a second connection part 72, or among the plurality of wire harness pads 7, some wire harness pads 7 include a second pad body 71 and a second connection part 72. As some embodiments of the present application, as Figure 8 shown, the number of wire harness pads 7 is four, and two of the wire harness pads 7 include a second pad body 71 and a second connection part 72.

[0129] The second connection part 72 is connected to the second pad body 71. The connection manner between the second connection part 72 and the second pad body 71 can be, but is not limited to, welding, bolt connection, etc. As some embodiments of the present application, the second connection part 72 is connected to the second pad body 71 by welding. As some embodiments of the present application, the second connection part 72 and the second pad body 71 are integrally formed.

[0130] By making at least one wire harness pad 7 include a second pad body 71 and a second connection part 72, it is possible to facilitate the electrical connection between the fuse 241 and the wire harness pad 7, so that it is possible to facilitate the connection of the fuse 241 between the first wire harness 4 and the sampling chip 6, which is beneficial to reducing the manufacturing difficulty of the sampling assembly 2.

[0131] In some embodiments of the present invention, as Figure 8 and Figure 10 shown, there are a plurality of fuses 241 and a plurality of wire harness pads 7, and the plurality of fuses 241 and the plurality of wire harness pads 7 are arranged in one-to-one correspondence.

[0132] As some embodiments of the present application, as Figure 8 and Figure 10As shown, the number of fuses 241 is four, and the number of wire harness pads 7 is four. The four fuses 241 and the four wire harness pads 7 are arranged in one-to-one correspondence. The four fuses 241 are respectively connected between the sampling chip pads 61 and the corresponding wire harness pads 7.

[0133] As some embodiments of the present application, such as Figure 8 and Figure 10 As shown, the number of fuses 241 is two, and the number of wire harness pads 7 is two. The two fuses 241 and the two wire harness pads 7 are arranged in one-to-one correspondence. The two fuses 241 are respectively connected between the sampling chip pads 61 and the corresponding wire harness pads 7.

[0134] Such an arrangement can make each fuse 241 correspond to a wire harness pad 7, so that each fuse 241 can correspond to a first wire harness 4, enabling precise overcurrent protection for the corresponding circuit. Moreover, by arranging multiple fuses 241 and multiple wire harness pads 7 in one-to-one correspondence, when a fuse blows, it will not affect other circuits, which is beneficial to improving the use reliability of the sampling component 2.

[0135] In some embodiments of the present invention, such as Figure 8 and Figure 10 As shown, the wire harness pad 7 has a first through hole 73, and the circuit mounting board 24 has a second through hole 242. The first through hole 73 corresponds to the second through hole 242.

[0136] As some embodiments of the present application, such as Figure 10 As shown, the number of wire harness pads 7 is two. Each wire harness pad 7 is formed with a first through hole 73. The second through hole 242 is formed in the circuit mounting board 24. The number of the first through holes 73 is the same as that of the second through holes 242 and they are arranged in one-to-one correspondence, so that the two wire harness pads 7 and the circuit mounting board 24 are welded by through-hole soldering.

[0137] As some embodiments of the present application, such as Figure 8 As shown, the number of wire harness pads 7 is four. Two of the wire harness pads 7 include a second pad body 71 and a second connecting portion 72, and the other two wire harness pads 7 include a second pad body 71. Each second pad body 71 is formed with a first through hole 73. The second through hole 242 is formed in the circuit mounting board 24. The number of the first through holes 73 is the same as that of the second through holes 242 and they are arranged in one-to-one correspondence, so that the four wire harness pads 7 and the circuit mounting board 24 are welded by through-hole soldering.

[0138] Such an arrangement can make the wire harness pad 7 and the circuit mounting board 24 be welded and connected by through-hole soldering, which is beneficial to reducing the connection difficulty between the wire harness pad 7 and the circuit mounting board 24, improving the production efficiency, and reducing the product weight, which is beneficial to the lightweight design of the sampling component 2.

[0139] In some embodiments of the present invention, such as Figure 8 and Figure 10 shown, at least a part of the structure of the fuse 241 is configured as an arc segment.

[0140] As some embodiments of the present application, a part of the structure of the fuse 241 is configured as an arc segment. As some embodiments of the present application, the entire structure of the fuse 241 is configured as an arc segment. As some embodiments of the present application, the line width of the fuse 241 can be, but is not limited to, etc. mm, the fusing current of the fuse 241 can be, but is not limited to, etc. A, and the maximum current passing time of the fuse 241 can be, but is not limited to, etc. s.

[0141] By configuring at least a part of the structure of the fuse 241 as an arc segment, the length of the fuse 241 can be increased within a limited installation area, so as to improve the use reliability of the fuse 241, thereby being beneficial to improving the use safety of the sampling component 2.

[0142] In some embodiments of the present invention, such as Figure 3 and Figure 8 shown, the circuit mounting board 24 has at least one positioning groove 243.

[0143] As some embodiments of the present application, the circuit mounting board 24 has one positioning groove 243. As some embodiments of the present application, the circuit mounting board 24 has a plurality of positioning grooves 243. For example, the circuit mounting board 24 has two positioning grooves 243, and the two positioning grooves 243 are arranged at opposite ends of the circuit mounting board 24. By making the circuit mounting board 24 have at least one positioning groove 243, the installation position of the circuit mounting board 24 can be quickly determined, which is convenient for fixing the circuit mounting board 24 and is beneficial to reducing the installation difficulty of the sampling component 2.

[0144] The sampling assembly 100 according to the embodiment of the present invention, such as Figure 1 shown, includes: an isolation board 1, a connection row 22, a sampling component 2, and a first wire harness 4. The sampling component 2 is the above-mentioned sampling component 2 for the battery. The sampling component 2 is arranged on the isolation board 1. The connection row 22 is connected between the battery cell and the sampling piece 6. The first wire harness 4 is electrically connected to the fuse 241 and is adapted to be electrically connected to the battery controller.

[0145] Among them, the sampling component 2 is provided on the isolation plate 1. As some embodiments of the present application, the sampling component 2 and the isolation plate 1 are connected by bolts. As some embodiments of the present application, the sampling component 2 and the isolation plate 1 are connected by riveting. The connection row 22 is used for current-carrying of the battery system. The connection row 22 may include an output pole aluminum row 221 and a battery cell series aluminum row 222. The connection row 22 is connected between the battery cells and the sampling piece 6. The material of the connection row 22 may be, but is not limited to, conductive materials such as copper and aluminum. The connection row 22 may have connection row fixing holes and is thermally riveted to the first receiving groove 121 through the connection row fixing holes.

[0146] Specifically, the connection row 22 is connected between the pole column of the battery cell and the sampling piece 6. The sampling piece 6 is electrically connected to the sampling piece pad 61 of the circuit mounting board 24. The fuse 241 is connected between the sampling piece pad 61 and the wire harness pad 7. The wire harness pad 7 is electrically connected to the first wire harness 4. The first wire harness 4 can be electrically connected to the controller to transmit an electrical signal to the controller.

[0147] As some embodiments of the present application, the isolation plate 1 includes a plate body 12 and a fitting 13. The fitting 13 is provided on the plate body 12. The fitting 13 defines an assembly groove 131. The assembly groove 131 penetrates the fitting 13 along the first direction. The first wire harness 4 can penetrate the fitting 13 along the first direction. Part of the structure of the first wire harness 4 is assembled in the assembly groove 131.

[0148] Among them, the isolation plate 1 can be, but is not limited to, made of plastic (PC) material, rubber material, etc. Along the height direction of the sampling assembly 100, one end of the fitting 13 is fixed to the plate body 12. As some embodiments of the present application, the plate body 12 and the fitting 13 are integrally formed. As some embodiments of the present application, the plate body 12 and the fitting 13 are adhesively connected. One end of the fitting 13 facing away from the plate body 12 is open, so that the fitting 13 defines the assembly groove 131. The assembly groove 131 can provide an assembly position for the first wire harness 4. Moreover, the structure of the fitting 13 is simple, which is beneficial to reducing the assembly difficulty of the first wire harness 4 and improving the assembly efficiency and use economy of the sampling assembly 100. Along the first direction, the assembly groove 131 penetrates the fitting 13, so that at least part of the first wire harness 4 can be smoothly assembled into the assembly groove 131 from the open end of the assembly groove 131 and is movable along the first direction.

[0149] As some embodiments of the present application, the number of the fittings 13 is multiple. The number of the fittings 13 can be, but is not limited to, two, three, four, etc. As some embodiments of the present application, the number of the fittings 13 is five.

[0150] As some embodiments of the present application, the fitting 13 includes: two fitting parts 132, the two fitting parts 132 are spaced apart and correspondingly arranged to define the fitting groove 131. It can be understood that the two fitting parts 132 are spaced apart and symmetrically arranged to define the fitting groove 131.

[0151] Wherein, the two fitting parts 132 are spaced apart, and the two fitting parts 132 are correspondingly arranged to define a fitting groove 131 extending through the fitting 13 in the first direction between the two fitting parts 132. Such an arrangement can make the forming method of the fitting groove 131 reasonable, reduce the forming difficulty of the fitting groove 131, and has a simple structure, which is beneficial to reducing the fitting difficulty of the first wire harness 4 assembled in the fitting groove 131 and improving the fitting efficiency of the first wire harness 4.

[0152] As some embodiments of the present application, as Figure 11 shown, the fitting part 132 includes: a first sub-part 1321 and a second sub-part 1322, the second sub-part 1322 is connected between the first sub-part 1321 and the plate body 12, and the spacing distance between the two second sub-parts 1322 of the fitting 13 is greater than the spacing distance between the two first sub-parts 1321.

[0153] Wherein, the first sub-part 1321 and the second sub-part 1322 can be but are not limited to being connected by integral molding or bonding. The second sub-part 1322 is connected between the corresponding first sub-part 1321 and the plate body 12, and the spacing distance between the two second sub-parts 1322 is greater than the spacing distance between the two first sub-parts 1321. Such an arrangement can make the first wire harness 4 reliably snap into the fitting groove 131 and be movable along the first direction in the fitting groove 131.

[0154] Specifically, align the first wire harness 4 with the open end of the fitting groove 131. During the assembly process, the first wire harness 4 first drives the two first sub-parts 1321 to move away from each other, so that the wire harness can be smoothly snapped between the two second sub-parts 1322. After the wire harness completely passes through the first sub-part 1321, the first sub-part 1321 moves towards each other under the action of the self-elastic force of the fitting part 132 to make the fitting part 132 return to its initial state. Since the spacing distance between the two second sub-parts 1322 is greater than the spacing distance between the two first sub-parts 1321, the two first sub-parts 1321 can limit the first wire harness 4 from moving out of the fitting groove 131 from the open end of the fitting groove 131, so as to achieve the effect that the first wire harness 4 can move along the first direction in the fitting groove 131 without moving out of the fitting groove 131, thereby improving the relative reliability of the position and the working stability of the first wire harness 4.

[0155] The battery according to an embodiment of the present invention includes the sampling assembly 100 of the above embodiment. By using a circuit mounting board 24 (Printed-Circuit-Board) for the sampling component 2 of the battery, compared with the technical solution using an FPC (Flexible-Printed-Circuit) board, it can simplify the process flow, shorten the production cycle, and reduce the cost of the sampling component 2. By electrically connecting the fuse 241 to the first wire harness 4 of the battery and electrically connecting the sampling piece 6 to the fuse 241 and to the battery cell, it can cause the sampling component 2 to automatically blow when short-circuited, which is beneficial to improving the safety of the sampling component 2.

[0156] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0157] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A sampling assembly of a battery device, characterized in that, Comprising: A separator plate, which is formed with an assembly groove extending in a first direction perpendicular to the thickness direction of the separator plate; A sampling assembly for electrically connecting with a battery cell of the battery device to collect parameter information of the battery cell; A mounting member assembled in the assembly groove, the mounting member includes a distance compensation portion and a plurality of mounting portions arranged in sequence along the first direction, the sampling assembly is mounted on the corresponding mounting portion, and the distance compensation portion is connected between any two adjacent mounting portions. Along the thickness direction of the mounting member, the distance compensation portion protrudes from at least one side of the mounting member to the mounting portion. The distance compensation portion includes a plurality of distance compensation segments connected in sequence along the first direction, and any two adjacent distance compensation segments are bent and connected. The two distance compensation segments at the ends are respectively connected to the adjacent two mounting portions. The distance compensation portion is configured to be deformable along the first direction.

2. The sampling assembly of the battery device according to claim 1, characterized in that, The plurality of distance compensation segments include a first distance compensation segment and a plurality of second distance compensation segments. The plurality of second distance compensation segments are arranged at intervals in sequence along the first direction and all extend along the thickness direction of the mounting member. The first distance compensation segment is connected between any two adjacent second distance compensation segments. Along the thickness direction of the mounting member, the end of the second distance compensation segment is connected to the corresponding first distance compensation segment, and the two ends of each second distance compensation segment at the end are respectively connected to the adjacent mounting portion and the first distance compensation segment.

3. The sampling assembly of the battery device according to claim 2, characterized in that, The second distance compensation segment at the end is perpendicular to the adjacent mounting portion.

4. The sampling assembly of the battery device according to claim 2, characterized in that, The first distance compensation segment is perpendicular to the adjacent second distance compensation segment.

5. The sampling assembly of the battery device according to claim 2, characterized in that, Along the thickness direction of the mounting member, the plurality of second distance compensation segments are located on the same side of the mounting member.

6. The sampling assembly of the battery device according to claim 5, characterized in that, At least one first distance compensation segment is located on the side of the mounting member where the second distance compensation segment is formed.

7. The sampling assembly of the battery device according to claim 6, characterized in that, The number of the second distance compensation segments is greater than or equal to four, and at least one first distance compensation segment and the plurality of mounting portions are coplanar.

8. The sampling assembly of the battery device according to claim 2, characterized in that, The plurality of second distance compensation segments are parallel to each other; and / or, the first distance compensation segment is parallel to the adjacent mounting portion.

9. The sampling assembly of the battery device according to any one of claims 1-8, characterized in that, The mounting member is formed with a plurality of first assembly holes arranged in sequence along the first direction, and at least one first assembly hole is configured as a strip hole extending along the first direction; and / or, the mounting member is an integrally formed part.

10. A battery device, characterized in that, Including the sampling assembly of the battery device according to any one of claims 1-9.

Images