Sampling component and battery pack

Abstract

The invention discloses a sampling component and a battery pack, relates to the technical field of battery assembly, and is used for solving the problem of installation and connection dislocation in the use process of a sampling wire duct, and the sampling component comprises a support with a first end face provided with a plurality of battery jars. A plurality of first assembling grooves used for containing first connecting pieces are formed in the first end face of a support. The middle of the support is further provided with a guide line composed of a plurality of first guide parts. A sampling part is arranged at the first end part of the guide part I, the sampling part is bent relative to the direction of the guide line, and the sampling part is respectively positioned between the two assembly grooves I; a bending part I is arranged at the end part of the sampling part, and the end part of the bending part I is positioned in the assembling groove I; a wire guide groove for accommodating a sampling wire is formed in the guide part I, and passes through the sampling part and the bending part; a plurality of gluing grooves used for containing glue to fix the sampling lines are formed in the guide line, and first protruding parts used for clamping the sampling lines are arranged in the guide groove in a staggered mode.

Description

Technical Field

[0001] The present invention relates to the technical field of battery assembly, and in particular to a sampling component and a battery pack. Background Art

[0002] The sampling component of the battery module is an important component in the battery pack system. It is used to cooperate with the sampling line to accurately transmit data from the battery cell to the battery management system so as to monitor the battery status and health in real time and protect the internal sampling line or sensor line from external environmental influences and mechanical damage.

[0003] The existing sampling method of battery modules is to directly lead out the sampling line at the end of the cylindrical battery. With this sampling method, the battery module may be subject to vibration during operation or transportation. This vibration will be transmitted to the battery and its surrounding structures, making the sampling line susceptible to external vibration and bending and stretching, or the impact force generated by the vibration will cause it to break or break, causing the connection point of the sampling line to fall off.

[0004] Therefore, a new sampling component and battery pack are needed to solve the problem of the sampling line connection point falling off due to vibration. Summary of the invention

[0005] The purpose of the application is to provide a sampling component and a battery pack that can solve the problem of sampling line misalignment.

[0006] To achieve the above objectives, the present application embodiment adopts the following technical solutions:

[0007] A sampling component comprises a bracket having a plurality of battery slots on a first end face, characterized in that: a plurality of assembly slots are provided on the first end face of the bracket, the assembly slots are used to accommodate a connecting piece; a guide line is also provided in the middle of the second end face of the bracket, the guide line comprises a plurality of guide parts, the guide parts are arranged side by side; a sampling part is provided at the first end of the guide part, the sampling part is bent relative to the direction of the guide line, and the sampling part is respectively located between two assembly slots; a bending part is provided at the end of the sampling part, and the end of the bending part is located in the assembly slot; a wire groove is provided on the guide part for accommodating a sampling line, the wire groove passes through the sampling part and the bending part; a plurality of gluing grooves are provided on the guide line for accommodating glue to fix the sampling line, the gluing grooves are connected to the wire groove; and protrusions are staggered in the wire groove for clamping the sampling line.

[0008] Furthermore, a second guide portion is provided at the edge of the second end portion of the bracket, and a plurality of second wire grooves are provided on the second guide portion.

[0009] Furthermore, a plurality of openings are provided in the assembly slot one, and the openings are used to connect the battery slot to the assembly slot one.

[0010] Furthermore, a second bending portion is provided between the sampling portion and the first bending portion.

[0011] Furthermore, the first bending portion is located between two openings.

[0012] Furthermore, the length direction of the first assembly groove is perpendicular to the length direction of the guiding line, and the length direction of the first bending portion is the same as the length direction of the guiding line.

[0013] Furthermore, a notch is provided at the edge of the first end face of the bracket, and the notch is located between the second guiding portion and the first guiding portion.

[0014] Furthermore, the lengths of the plurality of glue application grooves decrease in the direction from near the second guiding portion to away from the second guiding portion.

[0015] Furthermore, the end of the first bending portion is parallel to the length direction of the guiding line, and the median distances between the wire grooves on the first guiding portion in the guiding line are the same.

[0016] An embodiment of the present application further includes a battery pack, which includes a plurality of first connecting pieces and a plurality of cylindrical batteries. The first connecting pieces are arranged at both ends of the cylindrical batteries and are used for connecting the cylindrical batteries in series, and have the above-mentioned sampling component.

[0017] Compared with the prior art, the present invention has the following technical effects:

[0018] In the above technical solution, by setting the first sampling portion to adjust the extending direction of the first sampling wire groove, the attitude of the wire is adjusted, so that the sampling wire can only move along a specific path in the groove. Even if an external force tries to push the sampling wire, the bending shape of the sampling portion will guide the sampling wire to a certain extent and limit the range of its free movement. Then, glue application grooves communicating with the sampling wire grooves are arranged at certain intervals on the guiding line for injecting glue to fix the sampling wire in the groove, and the first protruding portions for clamping the sampling wire are alternately arranged in the guiding groove, increasing the friction between the sampling wire and the groove wall and reducing the sliding of the wire in the groove, thereby achieving the effect of preventing the connection point of the sampling wire from falling off due to vibration. Description of the Drawings

[0019] Figure 1 is an exploded view of the battery pack of the present invention.

[0020] Figure 2 is a schematic structural diagram of the left bracket of the present invention.

[0021] Figure 3 is a schematic structural diagram of the right bracket of the present invention.

[0022] Figure 4 is a partial structural schematic diagram of the first end of the first guiding portion of the present invention.

[0023] Figure 5 This is a partial structural schematic diagram of the second guiding part of the right bracket of the present invention.

[0024] In the attached drawings: 1. housing, 2. cylindrical battery, 3. bracket, 4. first connecting piece, 5. guiding circuit, 6. second guiding part;

[0025] 101. handle;

[0026] 301. battery slot, 302. first assembly slot, 303. second assembly slot, 304. third assembly slot;

[0027] 401. second connecting piece, 402. third connecting piece, 403. abutting part, 404. groove, 405. connecting part;

[0028] 501. first guiding part, 502. second bending part, 503. sealant application groove, 504. first wire groove;

[0029] 505. third guiding part, 506. third wire groove, 507. first protrusion part, 508. first bending part, 509. sampling part;

[0030] 601. second wire groove, 602. notch, 603. through part, 604. third bending part. Detailed implementation manners

[0031] In order to clearly and completely describe the purpose, technical solution of the present invention, and make the advantages more clear, the following further details the embodiments of the present invention with reference to the attached drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0032] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", etc. is based on the orientation or positional relationship shown in the attached drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0034] For the purposes of simplicity and illustration, the principles of the embodiments are mainly described by reference to examples. In the following description, many specific details are set forth to provide a thorough understanding of the embodiments. However, it is obvious that for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, well-known methods and structures are not described in detail to avoid unnecessarily obscuring these embodiments. Additionally, all embodiments can be used in combination with each other.

[0035] Embodiment 1:

[0036] As Figure 1 、 Figure 2 and Figure 3 shown, the present invention is mainly applied to a battery pack for accommodating cylindrical batteries 2, wherein the battery pack includes a plurality of cylindrical batteries 2 arranged side by side. An outer shell 1 for packaging the battery pack is provided outside the battery pack. The number of the shells 1 is 2, which is used to fix the sampling component through a connecting piece. A handle 101 can be provided at the connection of the shells 1 for facilitating picking up, placing, and carrying;

[0037] In order to further improve the utilization efficiency of the space of the shell 1, the cylindrical batteries 2 are arranged in a staggered manner up and down at a certain angle. In order to facilitate accommodating a plurality of cylindrical batteries 2, the sampling component of the battery pack includes two brackets 3. A battery slot 301 corresponding to the position of the cylindrical battery 2 is provided on the first end face of the bracket 3. By inserting the two ends of the corresponding cylindrical battery 2 into the battery slots 301 of the two brackets 3 respectively, and arranging the cylindrical batteries 2 in a staggered manner up and down at the corresponding positions, the installation and positioning of the cylindrical batteries 2 are completed;

[0038] In order to ensure the sampling accuracy of the cylindrical battery 2 and ensure that the fixing method and position of the sampling line and the cylindrical battery 2 are consistent, a plurality of connecting pieces 4 are provided in the battery pack. The connecting pieces 4 are divided into two groups. The sampling component is arranged between the two groups of connecting pieces 4. The connecting pieces 4 are used to connect the plurality of cylindrical batteries 2 in the sampling component respectively, and connect the corresponding cylindrical batteries 2 in series in groups.

[0039] Among them, a plurality of first assembly grooves 302 are provided on the first end face of the bracket 3. The battery groove 301 communicates with the first assembly groove 302. The first assembly groove 302 is used to accommodate the first connecting piece 4, including: a guiding circuit 5 is further provided in the middle of the second end face of the bracket 3. The guiding circuit 5 is composed of a plurality of first guiding parts 501, and the first guiding parts 501 are attached side by side; a sampling part 509 is provided at the first end of the first guiding part 501. The sampling part 509 is bent in the direction opposite to the guiding circuit 5. The sampling parts 509 are respectively located between the two first assembly grooves 302; a first bending part 508 is provided at the end of the sampling part 509, and the end of the first bending part 508 is located in the first assembly groove 302; a first wire groove 504 for accommodating the sampling wire is provided on the first guiding part 501. The first wire groove 504 passes through the sampling part 509 and the first bending part 508; a plurality of glue injection grooves 503 for accommodating glue to fix the sampling wire are provided on the guiding circuit 5. The glue injection grooves 503 communicate with the first wire groove 504; a first convex part 507 for clamping the sampling wire is alternately arranged in the guiding groove.

[0040] By providing the guiding circuit 5 and providing the first guiding part 501 with the first wire groove 504 on the guiding circuit 5, it is convenient to converge and arrange a plurality of sampling wires installed on the first connecting piece 4 for sampling; among them, by providing the sampling part 509 to adjust the extending direction of the first wire groove 504 so as to adjust the posture of the sampling wire, so that the sampling wire can only move along a specific path in the groove. Even if an external force tries to push the sampling wire, the bent shape of the sampling part 509 will also guide the sampling wire to a certain extent, limit the range of its free movement, and keep a certain heat dissipation space between the upper and lower sampling wires with a first assembly groove 302 in between to prevent connection misalignment caused by insufficient heat dissipation requirements and heat deformation at the end of the sampling wire; then, glue injection grooves 503 communicating with the first wire groove 504 are provided at certain intervals on the guiding circuit 5 for injecting glue to fix the sampling wire in the groove, and a first convex part 507 for clamping the sampling wire is alternately arranged in the first wire groove 504, increasing the friction between the sampling wire and the groove wall, thereby reducing the sliding of the wire in the groove, so as to achieve the effect of preventing the connection point of the sampling wire from falling off due to vibration.

[0041] Specifically, in order to improve the space utilization efficiency in the battery module, the battery grooves 301 are arranged obliquely. A plurality of third bending parts 604 are provided on the guiding circuit 5 to ensure that the guiding circuit 5 adapts to the shape of the first assembly groove 302, and cooperate with the first convex part 507 to disperse the external force applied to the sampling wire during transportation, increase the fixing force of the wire groove on the sampling wire, and prevent the sampling wire from sliding due to external factors such as vibration and tension during use;

[0042] Specifically, the first end of the bracket is provided with a second guide portion 6, and the second guide portion 6 is provided with a plurality of second wire grooves 601, which are used to facilitate bending a plurality of sampling wires of the sampling circuit to the second wire grooves 601 for confluence and connection with the sampling plate for sampling.

[0043] Specifically, a plurality of openings are provided in the assembly groove 302, and the openings are used to connect the battery groove to the assembly groove 302, so as to facilitate the contact between the connecting piece 4 placed in the assembly groove and the cylindrical battery cell.

[0044] Specifically, a second bending portion 502 for adjusting the posture and direction of the sampling line is provided between the sampling portion 509 and the first bending portion 508 .

[0045] Specifically, in order to further optimize the arrangement of the sampling lines and improve the utilization efficiency of the space, the bending portion 508 is located between the two openings, the length direction of the assembly groove 302 is perpendicular to the length direction of the guide line 5, the length direction of the bending portion 508 is the same as the length direction of the guide line 5, the lengths of the plurality of glue grooves 503 decrease from close to the guide portion 2 6 to away from the guide portion 2 6, the end of the bending portion 508 is parallel to the length direction of the guide line 5, and the centerline distances between the wire grooves 504 on the guide portion 501 in the guide line 5 are the same.

[0046] Specifically, a notch 602 is provided at the edge of the first end surface of the bracket, and the notch 602 is located between the second guide part 6 and the first guide part 501 to prevent the sampling line from being damaged when the sampling line is pulled from the guide line 5 to the second guide groove 601.

[0047] An assembly groove 302 for embedding a connecting piece 4 is provided on the second end face of the bracket 3, connecting pieces 4 are provided at both ends of at least two cylindrical batteries 2, and a resisting portion 403 is provided on the connecting piece 4 for connecting the ends of the cylindrical battery 2, and a guide line 5 is provided on the second end face of the bracket 3, replacing the existing sampling structure for directly sampling multiple cylindrical batteries 2, each group of cylindrical batteries 2 is provided with its own connecting piece 4, so that each connecting piece 4 has its own sampling line, which greatly reduces the height space occupied by the sampling line, and by designing a unique guiding portion 501, a wire groove 504 for accommodating the sampling line is provided on the guiding portion 501, and staggered protrusions 507 are provided in the wire groove 504 for resisting and clamping the sampling line, which further facilitates the overall arrangement optimization of the sampling line.

[0048] Specifically, the notch 602 disposed at the first end of the bracket 3 is further provided with a through portion 603 for heat dissipation.

[0049] Specifically, a second protrusion 604 is provided at the edge of the first end of the guide line 5 , and the second protrusion 604 is located in the first wire groove 504 .

[0050] Specifically, a connecting portion 405 is provided at the end of the first connecting piece 4. The first wire groove 504 faces the connecting portion 405. One end of the sampling wire is connected to the connecting portion 405. A connecting piece is provided at the first end of the first wire groove 504 for connecting with the connecting portion 405 to facilitate sampling.

[0051] Specifically, as Figure 4 shown, a first bending portion 508 is provided at the first end of the first guiding portion 501. The first end of the first guiding portion 501 is located in the first assembly groove 302. A corresponding groove 404 is provided on the first connecting piece 4 to engage with the first bending portion 508. When the first connecting piece 4 is located in the groove 404, the left - right position of the first connecting piece 4 is restricted, stabilizing the relative position of the first connecting piece 4 and the corresponding first assembly groove 302, further ensuring that the sampling wire is firmly installed and preventing connection misalignment, and ensuring the correct docking effect of the sampling wire.

[0052] Specifically, a glue - applying groove 503 is provided on the first guiding portion 501. The glue - applying groove 503 is located on one side of the second bending portion 502. The glue - applying groove 503 is used to hold glue, and the glue is used to fix the sampling wire. Glue - applying grooves 503 are provided at the ends of the bending portions of each second guiding portion 6 to hold glue, facilitating glue - applying and enclosing the arranged sampling wires, and the glue is not easily overflowed. Further, it ensures that the sampling wire is firmly installed and prevents connection misalignment, and ensures the correct docking effect of the sampling wire.

[0053] Embodiment 2:

[0054] As Figure 2 、 Figure 3 and Figure 5 shown, on the basis of Embodiment 1, the length direction of the first connecting piece 4 is perpendicular to the length direction of the guiding line 5. The length direction of the connecting portion 405 is the same as the length direction of the guiding line 5. The connecting portion 405 is located between two abutting portions 403, so as to adapt to the staggered cylindrical batteries 2, forming an arrangement structure of a plurality of second bending portions 502 with staggered positions on both sides of the guiding line 5; the lengths of the plurality of glue - applying grooves 503 decrease from the direction close to the second guiding portion 6 to the direction away from the second guiding portion 6; the second section of the first guiding portion 501 is parallel to the length direction of the guiding line 5, and the mid - line distances between the first wire grooves 504 located in the second section of the first guiding portion 501 in the guiding line 5 are the same; this is used to ensure that there is enough distance between the connecting portions 405 and the distance between the connecting portion 405 and another connecting portion 405 is the same, so as to ensure that the connecting portions 405 of the sampling wire have a certain heat - dissipation space and the temperature distribution is uniform, preventing connection misalignment caused by insufficient heat - dissipation requirements and heat - induced deformation at the ends of the sampling wire, and ensuring the correct docking of the sampling wire.

[0055] Specifically, the connecting piece 4 is formed by stamping, and a plurality of abutment parts 403 are arranged at the bottom. The abutment parts 403 face the battery slot 301 , and the end of the cylindrical battery 2 is inserted into the battery slot 301 . A through groove is arranged on the abutment part 403 to assist assembly.

[0056] Specifically, the arrangement of the grouped series connections is determined according to the number of cylindrical batteries 2, for example Figure 1 In one case shown, the number of cylindrical batteries 2 is 32, and the number of corresponding assembly slots 302 is 17, wherein 14 connecting pieces 4 are used to connect to the electrodes of 4 cylindrical batteries 2;

[0057] Specifically, Figure 2 As shown, a first end surface of a bracket 3 is provided with a guide portion 3 505, and a first end portion of the guide portion 3 505 faces the notch 602, so as to facilitate the sampling line to extend from the wire groove 3 506 of the guide portion 3 505 into the wire groove 2 601, wherein the wire groove 3 506 is provided with a corresponding protrusion 1 507 for clamping the sampling line;

[0058] Specifically, Figure 3 As shown, another bracket 3 is provided with another two connecting pieces 401 located at the edge, connected to the electrodes of the two cylindrical batteries 2, and a connecting piece 3 402 is provided at the other edge, connected to the electrodes of the four cylindrical batteries 2 in the horizontal direction, so that the corresponding cylindrical batteries 2 are grouped and connected in series, and the number of corresponding battery slots 301 is 32, wherein, since the connecting portion of the connecting piece 2 401 needs to be arranged outside the end face of the bracket 3, a sampling pole ear is arranged at the end of the connecting piece 2 401 for sampling, and the sampling pole ear is bent to make the sampling pole ear away from the bracket 3, and a corresponding assembly groove 2 303 is arranged on the bracket 3, so the corresponding guide portion 1 501 is not arranged on the bracket; wherein, since the two groups of cylindrical batteries 2 located at the second end of the bracket need to be connected by polarity, the connecting piece 3 402 needs to be arranged in a strip shape, and the bracket 3 is provided with a corresponding assembly groove 3 304.

[0059] Specifically, the number of the second wire grooves 601 corresponds to the sum of the number of the first connecting piece 4 and the third connecting piece 402 on the corresponding bracket 3.

[0060] Although the above describes the illustrative specific implementation methods of the present application so that technicians in this technical field can understand the present application, the present application is not limited to the scope of the specific implementation methods. For ordinary technicians in this technical field, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations using the concept of the present application are protected.

Claims

1. A sampling component, comprising a bracket having a plurality of battery slots disposed on a first end surface, characterized in that: include: The first end surface of the bracket is provided with a plurality of assembly grooves 1, and the assembly grooves 1 are used to accommodate the connecting piece 1; A guide line is also provided in the middle of the second end surface of the bracket, and the guide line is composed of a plurality of guide parts 1, and the guide parts 1 are arranged side by side and attached to each other; The first end of the guide portion 1 is provided with a sampling portion, the sampling portion is bent relative to the direction of the guide line, and the sampling portion is respectively located between the assembly grooves 1; The end of the sampling portion is provided with a bending portion 1, and the end of the bending portion 1 is located in the assembly groove 1; The guide portion 1 is provided with a wire groove 1 for accommodating the sampling wire, and the wire groove 1 passes through the sampling portion and the bending portion 1; The guide line is provided with a plurality of glue grooves for accommodating glue to fix the sampling line, and the glue grooves are connected to the wire groove; The guide groove is staggeredly provided with a protrusion 1 for clamping the sampling line.

2. A sampling component according to claim 1, characterized in that: A second guide portion is arranged at the edge of the second end portion of the bracket, and a plurality of second wire grooves are arranged on the second guide portion.

3. A sampling component according to claim 1, characterized in that: A plurality of openings are arranged in the first assembly slot, and the openings are used to connect the battery slot to the first assembly slot.

4. A sampling component according to claim 3, characterized in that: A second bending portion is provided between the sampling portion and the first bending portion.

5. A sampling component according to claim 4, characterized in that: The first bending portion is located between the two openings.

6. A sampling component according to claim 2, characterized in that: The length direction of the first assembly groove is perpendicular to the length direction of the guide line, and the length direction of the first bending portion is the same as the length direction of the guide line.

7. A sampling component according to claim 1, characterized in that: A notch is arranged at the edge of the first end surface of the bracket, and the notch is located between the second guide portion and the first guide portion.

8. A sampling component according to claim 5, characterized in that: The lengths of the plurality of glue-applying grooves decrease gradually from a direction close to the second guide portion to a direction away from the second guide portion.

9. A sampling component according to claim 1, characterized in that: The end of the bending portion 1 is parallel to the length direction of the guide line, and the center line distances between the wire grooves 1 on the guide portion 1 in the guide line are the same.

10. A battery pack, comprising a plurality of connecting pieces 1 and a plurality of cylindrical batteries, wherein the connecting pieces 1 are arranged at both ends of the cylindrical batteries and are used to connect the cylindrical batteries in series, characterized in that: A sampling component according to any one of claims 1 to 9.

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