Connector and battery management system

Abstract

The utility model relates to the technical field of connectors, and discloses a connector and a battery management system, the connector has a length direction, a width direction and a thickness direction, the connector comprises a base and a plurality of conductive members, and one side of the base along the thickness direction is provided with a connecting surface used for connecting a PCB (Printed Circuit Board); a connecting end and an inserting end are arranged at the two ends of the base in the width direction respectively; the insertion end is provided with an insertion groove, and the connecting end is provided with a plurality of first bosses arranged at intervals in the length direction in a protruding mode. The conductive piece is connected to the base and comprises a first conductive part and a second conductive part which are connected with each other; a first boss is arranged between every two adjacent first conductive parts; the first boss and the first conductive part extend out of the connecting surface along the thickness direction and are used for being inserted into the PCB; and the second conductive part is located in the plugging groove, so that the safety of the connector can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a connector and a battery management system. Background Art

[0002] As an indispensable component of the battery management system (BMS), the connector is usually set on the PCB and electrically connected to the battery.

[0003] Connectors are mainly used for high voltage, low current and signal transmission. Currently, the safety performance of connectors is difficult to meet user needs. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a connector that can improve the safety of the connector.

[0005] The utility model also provides a battery management system having the above connector.

[0006] According to the connector of the embodiment of the first aspect of the present invention, the connector has a length direction, a width direction and a thickness direction, and the connector includes a base and a plurality of conductive parts. The base has a connection surface for connecting to a PCB board on one side along the thickness direction; the base is respectively provided with a connection end and a plug-in end at both ends along the width direction; the plug-in end is provided with a plug-in slot, and the connection end is provided with a plurality of first bosses arranged at intervals along the length direction; the conductive part is connected to the base and includes a first conductive part and a second conductive part connected to each other; a first boss is provided between two adjacent first conductive parts; the first boss and the first conductive part extend out of the connection surface along the thickness direction for being plugged into the PCB board; the second conductive part is located in the plug-in slot.

[0007] According to the connector of the embodiment of the present utility model, there are at least the following beneficial effects: the base has a connection surface for connecting to the PCB board on one side along the thickness direction, and the plug-in end of the base is provided with a plug-in slot. The conductive member is connected to the base, and the conductive member includes a first conductive part and a second conductive part that are connected to each other. The first conductive part is located at the connection end and is used to electrically connect to the PCB board, and the second conductive part is located in the plug-in slot and is used to electrically connect to other electrical parts. A first boss is provided between two adjacent first conductive parts, so that the adjacent first conductive parts can be separated, the creepage distance between the adjacent first conductive parts is increased, and it helps to avoid high-voltage breakdown between the adjacent first conductive parts, thereby increasing the safety of the connector. The first boss and the first conductive part can both extend out of the connection surface along the thickness direction, and the first conductive part can be plugged into the PCB board to achieve electrical connection. The first boss is plugged into the PCB board, which can improve the connection strength between the connector and the PCB board, help to improve the situation where the connector is detached from the PCB board, and further increase the reliability of the connector.

[0008] According to some embodiments of the present invention, the distance between two adjacent second conductive parts is ≥4 mm and ≤10 mm.

[0009] According to some embodiments of the present invention, a dimension of the first boss along the length direction is ≥0.9 mm and ≤2 mm.

[0010] According to some embodiments of the present invention, the connecting end includes a connecting portion, which is located on the side of the connecting end away from the connecting surface, and multiple first bosses are connected to the connecting portion. Two adjacent first bosses and the connecting portion cooperate to form a accommodating groove, and the first conductive portion is located in the accommodating groove.

[0011] According to some embodiments of the present invention, a dimension of the first boss along the width direction is ≥9.3 mm and ≤15 mm.

[0012] According to some embodiments of the present invention, the plug-in end further includes a plurality of second bosses spaced apart along the length direction, the second bosses protrude from the bottom wall of the plug-in slot, and a second conductive portion is provided between two adjacent second bosses.

[0013] According to some embodiments of the present invention, the dimension of the second boss along the length direction is ≥0.9 mm and ≤2 mm, and / or the protrusion height of the second boss is ≥3.5 mm and ≤5 mm.

[0014] According to some embodiments of the present invention, the first boss extending from the connecting surface along the thickness direction further extends in the width direction and is connected to the connecting surface.

[0015] According to some embodiments of the present invention, the connector further includes a fixing member, and the fixing members are provided at both ends of the base along the length direction, and the fixing members are used to connect to the PCB board.

[0016] A battery management system according to an embodiment of the second aspect of the present invention includes the connector in any one of the above embodiments.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0019] Figure 1 A schematic structural diagram of a connector provided by an embodiment of the present utility model is shown;

[0020] Figure 2 Shown Figure 1 A structural diagram of the connector from another perspective;

[0021] Figure 3 Shown Figure 1 Schematic diagram of the enlarged structure at point III;

[0022] Figure 4 Shown Figure 2 Schematic diagram of the enlarged structure at point IV in the middle;

[0023] Figure 5 Shown Figure 1 Schematic diagram of the cross-section structure of the connector.

[0024] Reference numerals:

[0025] Connector 100; base 110; connecting surface 111;

[0026] Connecting end 113; first boss 1131; connecting section 1133; extending section 1135; first side surface 1137; connecting portion 1139; receiving groove 1141;

[0027] Plug end 115; plug slot 1151; second boss 1153; first mounting hole 117; second side surface 119;

[0028] Conductive member 130; first conductive portion 131; second conductive portion 133;

[0029] Fixing member 150; length direction X; width direction Y; thickness direction Z. DETAILED DESCRIPTION

[0030] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0031] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0032] In the description of this utility model, "several" means more than one, "plurality" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of the terms "first" and "second" is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0033] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0034] In the description of the present invention, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the exemplary expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0035] See also Figure 1 , an embodiment of the present application provides a battery management system, which can be applied to a car to monitor the status of the battery.

[0036] The battery management system may include a PCB (Printed Circuit Board) and a connector 100 . The connector 100 may be connected to the PCB and used to electrically connect the battery, so as to achieve electrical connection between the electrical components on the PCB and the battery.

[0037] It can be understood that the connector 100 can also be used to electrically connect other electrical components besides batteries.

[0038] In some embodiments, there may be multiple connectors 100 to electrically connect a PCB board to various electrical components, where multiple may refer to two or more.

[0039] In some embodiments, the connector 100 has a length direction X, a width direction Y, and a thickness direction Z, and the directions may be perpendicular to each other.

[0040] See also Figures 1 to 3 In some embodiments, the connector 100 includes a base 110 and a plurality of conductive members 130 .

[0041] The base 110 may be an insulating base 110 to help avoid short circuits. For example, the base 110 may be a plastic base 110 .

[0042] The base 110 has a connection surface 111 on one side along the thickness direction Z. The connection surface 111 is used to connect to the PCB board.

[0043] As an example, when the connector 100 is installed, the connection surface 111 of the connector 100 may abut against or contact the surface of the PCB board.

[0044] As another example, the connection surface 111 can also be connected and fixed to the PCB board to improve the connection strength between the connector 100 and the PCB board. For example, the connection surface 111 can be bonded to the PCB board, or the connection surface 111 can also be connected and fixed to the PCB board in other ways.

[0045] The base 110 includes a connecting end 113 and a plugging end 115 . The connecting end 113 and the plugging end 115 are distributed at both ends of the base 110 along the width direction Y. The plugging end 115 is provided with a plugging slot 1151 .

[0046] As an example, the connection end 113 can be used to connect to the PCB board, and the plug end 115 can be used to plug and mate with other electrical components. The electrical component can be plugged into the plug slot 1151, so that the PCB board and the electrical component can be connected.

[0047] The conductive member 130 is connected to the base 110 , and the conductive member 130 can be used to connect the PCB board and the electrical components to achieve electrical connection between the PCB board and the electrical components.

[0048] The plurality of conductive elements 130 may also be distributed in sequence along the length direction X. Each conductive element 130 may be plugged into the base 110 to fix the conductive element 130 to the base 110 .

[0049] The connection end 113 is provided with a plurality of first bosses 1131 spaced apart along the length direction X.

[0050] As an example, the connection end 113 and the plug end 115 can be connected, and the direction from the connection end 113 to the plug end 115 can be the width direction Y of the base 110. The side of the connection end 113 facing away from the plug end 115 has a first side surface 1137, and the first boss 1131 can be protruding from the first side surface 1137 and extend along the width direction Y. Along the width direction Y, the notch of the plug slot 1151 can be located on the end surface of the plug end 115 facing away from the connection end 113.

[0051] The conductive member 130 includes a first conductive portion 131 and a second conductive portion 133 connected to each other, wherein the first conductive portion 131 is located at the connection end 113 for electrically connecting to the PCB board; the second conductive portion 133 is located in the plug-in slot 1151 for electrically connecting to other electrical components.

[0052] As an example, the conductive member 130 can be a connecting terminal 113. The first conductive portion 131 and the second conductive portion 133 can be arranged at an angle, for example, the first conductive portion 131 and the second conductive portion 133 can be approximately perpendicular. Multiple first conductive portions 131 can be distributed in sequence along the length direction X, and multiple second conductive portions 133 can also be distributed along one side of the length direction X. The first conductive portion 131 can be located at the connecting terminal 113 for electrical connection to a PCB board, for example, the first conductive portion 131 can be soldered to the PCB board. The second conductive portion 133 can be located in the plug slot 1151 for electrical connection to other electrical components.

[0053] A first boss 1131 is provided between two adjacent first conductive parts 131, thereby separating the adjacent first conductive parts 131 and increasing the creepage distance between the adjacent first conductive parts 131, which helps to avoid high-voltage breakdown between the adjacent first conductive parts 131 and increases the safety and reliability of the connector 100.

[0054] As an example, Figure 5As shown, the base 110 can be provided with a first mounting hole 117, and the first mounting hole 117 can pass through the first side surface 1137 and the bottom wall of the insertion slot 1151, and the second conductive part 133 can be inserted into the first mounting hole 117. The conductive part 130 and the base 110 can be fixedly connected by injection molding, or they can be fixed by bonding or other methods. The first conductive part 131 can extend to one side of the connecting surface 111, and the first conductive part 131 can be attached to the first side surface 1137. A supporting protrusion can also be provided between the first conductive part 131 and the first side surface 1137, and the supporting protrusion can be protruded from the first side surface 1137 to support the first conductive part 131. The supporting protrusion can also be a slot, and the first conductive part can be locked in the slot, which helps the first conductive part 131 to be more stably arranged on the connecting end 113.

[0055] The first boss 1131 is protruded from the first side surface 1137 to separate two adjacent first conductive portions 131. The second conductive portion 133 can be located in the insertion slot 1151 and extend along the width direction Y (ie, from the bottom wall of the insertion slot 1151 to the slot opening).

[0056] A first boss 1131 is provided between two adjacent first conductive parts 131 , which may mean that a first boss 1131 is provided between any two first conductive parts 131 .

[0057] The first boss 1131 and the first conductive portion 131 can both extend from the connecting surface 111 along the thickness direction Z. The first boss 1131 and the first conductive portion 131 can both be used to be plugged into the PCB board, so that the first conductive portion 131 can be plugged into the PCB board to achieve electrical connection. The first boss 1131 is plugged into the PCB board, which can improve the connection strength between the connector 100 and the PCB board, help improve the situation where the connector 100 is detached from the PCB board, and further increase the reliability of the connector 100.

[0058] As an example, the PCB board can be provided with multiple second mounting holes, which can be through-holes extending through the PCB board. A first boss 1131 can be inserted into each second mounting hole. The first boss 1131 can be simply inserted into the second mounting hole, or the first boss 1131 can be clamped into the second mounting hole, or the first boss 1131 can also be fixed into the second mounting hole. It is understood that the second mounting hole can also adopt an open slot structure, that is, the second mounting hole can extend through the PCB board and extend toward the side edge of the PCB board to penetrate the side edge of the PCB board, forming an opening on the side edge of the PCB board.

[0059] See also Figure 1 and Figure 3In some embodiments, the connecting end 113 may include a connecting portion 1139, which may be located on the side of the connecting end 113 away from the connecting surface 111. Multiple first bosses 1131 are all connected to the connecting portion 1139. Two adjacent first bosses 1131 and the connecting portion 1139 cooperate to form a receiving groove 1141. The first conductive portion 131 is located in the receiving groove 1141, so that the connecting portion 1139 can be connected to one end of the two first bosses 1131, thereby avoiding the gap between the two first bosses 1131 at one end of the connecting portion 1139, and avoiding high voltage breakdown between the two adjacent first conductive portions 131, thereby further improving the safety of the connector 100.

[0060] As an example, the base 110 may further include a second side surface 119 (eg, Figure 5 As shown in FIG, the second side surface 119 and the connection surface 111 may be located on opposite sides of the base 110 along the thickness direction Z. That is, the second side surface 119 and the connection surface 111 may be two outer surfaces of the base 110 along the thickness direction Z. The connection portion 1139 may be protruding from the first side surface 1137. Along the thickness direction Z, the connection portion 1139 has a first surface on the side facing away from the connection surface 111, and the plug end 115 has a second surface on the side facing away from the connection surface 111. The first and second surfaces may be connected to form the second side surface 119, where the second surface may be the outer wall surface of the plug slot 1151.

[0061] The connecting portion 1139 may be a plate-shaped structure extending along the length direction X. The first boss 1131 may be connected between a side of the connecting portion 1139 facing away from the second side surface 119 and the first side surface 1137 .

[0062] In some embodiments, the connecting portion 1139 may be provided with a hollow groove, which may be recessed in the end surface of the connecting portion 1139 on the side away from the plug-in end 115 along the width direction Y, so as to separate the connecting portion 1139 into two connecting plates. The two connecting plates may be connected by reinforcing ribs to enhance the structural strength of the connecting portion 1139, and can be easily manufactured and molded, such as by injection molding.

[0063] In some embodiments, along the thickness direction Z, the first boss 1131 extending from the connecting surface 111 can also extend in the width direction Y and be connected to the connecting surface 111, thereby extending the minimum distance between the first conductive portion 131 and the end of the first boss 1131 along the width direction Y, which helps to extend the creepage distance between the two adjacent first conductive portions 131 and improve the problem of high-voltage breakdown between the two adjacent first guide portions.

[0064] Specifically, the first boss 1131 may include a connecting section 1133 and a protruding section 1135. The connecting section 1133 may be connected between the first side surface 1137 and the connecting portion 1139. The protruding section 1135 may protrude from the connecting surface 111. The protruding section 1135 may extend along the width direction Y toward one side of the plug-in end 115 and be connected to the connecting surface 111, thereby extending the dimension of the protruding section 1135 along the width direction Y to extend the creepage distance between the two adjacent first conductive portions 131, and to avoid the occurrence of high-voltage breakdown due to a gap between the protruding end and the connecting surface 111.

[0065] See also Figure 2 and Figure 4 In some embodiments, the plug end 115 may further include a plurality of second bosses 1153 spaced apart along the length direction X. The second bosses 1153 may protrude from the bottom wall of the insertion slot 1151. A second conductive portion 133 may be provided between two adjacent second bosses 1153, thereby increasing the creepage distance between adjacent second conductive portions 133 and improving the problem of high-voltage breakdown between adjacent second conductive portions 133. Furthermore, a groove structure may be formed between two adjacent second bosses 1153 for embedding a plug connector in the plug end 115, thereby facilitating a more stable insertion of the plug connector into the plug end 115.

[0066] As an example, there can be multiple second bosses 1153. Multiple second bosses 1153 can be protruding from the bottom wall of the insertion slot 1151 and spaced apart along the length direction X. The height ends of the second bosses 1153 are connected to the inner wall of the insertion slot 1151, thereby preventing high-voltage breakdown from occurring in the gap between the second bosses 1153 and the inner wall of the insertion slot 1151.

[0067] In some embodiments, the spacing between two adjacent second conductive parts 133 can be ≥4 mm and ≤10 mm. In this way, controlling the spacing between two adjacent conductive parts within an appropriate range helps to increase the distance between two adjacent second conductive parts 133, and improve the situation where high-voltage breakdown occurs due to the small distance between two adjacent second conductive parts 133. Therefore, the connector 100 can be applied to some high-voltage scenarios, expanding the scope of use of the connector 100; it can also avoid affecting the size of the connector 100 due to the large distance between two adjacent second conductive parts 133.

[0068] As an example, the distance between two adjacent second conductive parts 133 can be 4 mm, 5 mm, 7 mm, 10 mm or other values in the interval [4 mm, 10 mm]. A suitable value can be selected according to specific needs.

[0069] It can be understood that the greater the voltage, the greater the distance between two adjacent second conductive parts 133 .

[0070] It should be noted that the distance between two adjacent first conductive parts 131 may be substantially equal to or unequal to the distance between two adjacent second conductive parts 133 , and the specific setting can be made according to requirements.

[0071] See also Figure 3 In some embodiments, the dimension of the first boss 1131 along the length direction X is ≥0.9 mm and ≤2 mm, that is, the thickness of the first boss 1131 is ≥0.9 mm and ≤2 mm. In this way, controlling the thickness of the first boss 1131 within an appropriate range helps to ensure that the first boss 1131 has a sufficiently large thickness, so that the first boss 1131 can have sufficient structural strength and can also be convenient for injection molding.

[0072] As an example, the thickness of the first boss 1131 may be 0.9 mm, 1.3 mm, 1.8 mm, 2 mm, or other values in the interval [0.9 mm, 2 mm].

[0073] In some embodiments, the dimension of the first boss 1131 along the width direction Y is ≥9.3 mm and ≤15 mm (e.g. Figure 5 Dimension A in FIG), that is, the protrusion height of the first boss 1131 from the first side surface 1137 along the width direction Y can be ≥9.3 mm and ≤15 mm. In this way, controlling the protrusion height of the first boss 1131 within a suitable range helps to ensure a sufficiently large creepage distance between two adjacent first conductive portions 131, further improving the problem of high-voltage breakdown between two adjacent first guide portions.

[0074] As an example, the height of the first boss 1131 may be 9.3 mm, 10 mm, 11 mm, 15 mm, or other values in the range [9.3 mm, 15 mm].

[0075] See also Figure 4 In some embodiments, the dimension of the second boss 1153 along the length direction X is ≥0.9 mm and ≤2 mm, that is, the width of the second boss 1153 is ≥0.9 mm and ≤2 mm. In this way, controlling the width of the second boss 1153 within an appropriate range helps to increase the creepage distance between two adjacent second conductive parts 133, further improve the problem of high-voltage breakdown between two adjacent second guide parts, and also ensure that the second boss 1153 has a sufficient width to facilitate processing and forming.

[0076] As an example, the width of the second boss 1153 may be 0.9 mm, 1 mm, 1.4 mm, 2 mm, or other values in the interval [0.9 mm, 2 mm].

[0077] In some embodiments, the protruding height of the second boss 1153 is ≥3.5 mm and ≤5 mm. In this way, controlling the height of the second boss 1153 within an appropriate range helps to increase the creepage distance between two adjacent second conductive parts 133, further improve the problem of high-voltage breakdown between two adjacent second guide parts, and can also ensure that the second boss 1153 has a sufficient height dimension to facilitate the formation of a sufficiently deep groove between the two second bosses 1153, which helps to make the connection with the connector more stable.

[0078] The protrusion height of the second boss 1153 may refer to the height of the second boss 1153 along the width direction Y.

[0079] As an example, the protrusion height of the second boss 1153 may be 3.5 mm, 4 mm, 4.8 mm, 5 mm, or other values in the interval [3.5 mm, 5 mm].

[0080] See also Figure 1 In some embodiments, the connector 100 may further include a fixing member 150. The base 110 is provided with a fixing member 150 at both ends along the length direction X. The fixing member 150 can be used to connect to the PCB board, so that the connector 100 can be fixed on the PCB board more stably.

[0081] As an example, both ends of the connector 100 along the length direction X can be provided in mounting grooves, and the bottom wall of the mounting groove can be provided with through holes. The fixing member 150 can include a mounting portion and a connecting pin connected to each other. Taking one of the mounting grooves as an example, the mounting portion can be inserted into the mounting groove, and the connecting pin can extend from the through hole and extend out of the connecting surface 111. The number of connecting pins can be two, and correspondingly, two through holes can be provided on the bottom wall of the mounting groove, and the connecting pins can correspond one-to-one with the through holes. The connecting pin extending from the connecting surface 111 can be used to be plugged into a PCB board, for example, the connecting pin can be soldered to the PCB board.

[0082] In the connector 100 and battery management system provided in the embodiment of the present application, the base 110 has a connection surface 111 for connecting to a PCB board on one side along the thickness direction Z, and the plug-in end 115 of the base 110 is provided with a plug-in slot 1151. The conductive member 130 is connected to the base 110, and the conductive member 130 includes a first conductive portion 131 and a second conductive portion 133 connected to each other. The first conductive portion 131 is located at the connection end 113 and is used to electrically connect to the PCB board. The second conductive portion 133 is located in the plug-in slot 1151 and is used to electrically connect to other electrical components. A first boss 1131 is provided between two adjacent first conductive portions 131, thereby separating the adjacent first conductive portions 131 and increasing the creepage distance between adjacent first conductive portions 131, which helps to avoid high-voltage breakdown between adjacent first conductive portions 131 and increases the safety of the connector 100. The first boss 1131 and the first conductive portion 131 can both extend from the connecting surface 111 along the thickness direction Z. The first conductive portion 131 can be plugged into the PCB board to achieve electrical connection. The first boss 1131 is plugged into the PCB board, which can improve the connection strength between the connector 100 and the PCB board, help improve the situation where the connector 100 is detached from the PCB board, and further increase the reliability of the connector 100.

[0083] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various modifications can be made within the scope of knowledge possessed by a person skilled in the art without departing from the spirit of the present invention. In addition, the embodiments of the present invention and the features of the embodiments can be combined with each other unless there is a conflict.

Claims

1. A connector, characterized in that: The connector has a length direction, a width direction and a thickness direction, and the connector includes: A base, wherein one side of the base along the thickness direction has a connection surface for connecting to a PCB board; the base is respectively provided with a connection end and a plug end at both ends along the width direction; the plug end is provided with a plug slot, and the connection end is provided with a plurality of first bosses spaced apart along the length direction; and A plurality of conductive parts are connected to the base and include a first conductive part and a second conductive part connected to each other; a first boss is provided between two adjacent first conductive parts; the first boss and the first conductive part extend out of the connecting surface along the thickness direction for being plugged into the PCB board; the second conductive part is located in the plug-in slot.

2. The connector according to claim 1, wherein: The distance between two adjacent second conductive parts is ≥4 mm and ≤10 mm.

3. The connector according to claim 1, wherein: The dimension of the first boss along the length direction is ≥0.9 mm and ≤2 mm.

4. The connector according to claim 1, wherein: The connecting end includes a connecting portion, which is located on the side of the connecting end away from the connecting surface. Multiple first bosses are connected to the connecting portion. Two adjacent first bosses and the connecting portion cooperate to form a receiving groove, and the first conductive portion is located in the receiving groove.

5. The connector according to claim 4, wherein: The dimension of the first boss along the width direction is ≥9.3 mm and ≤15 mm.

6. The connector according to claim 1, wherein: The plug end further includes a plurality of second bosses spaced apart along the length direction, wherein the second bosses are protruded from the bottom wall of the plug slot, and a second conductive portion is provided between two adjacent second bosses.

7. The connector according to claim 6, wherein: The dimension of the second boss along the length direction is ≥0.9 mm and ≤2 mm, and / or the protrusion height of the second boss is ≥3.5 mm and ≤5 mm.

8. The connector according to claim 1, wherein: The first boss extending from the connecting surface along the thickness direction further extends in the width direction and is connected to the connecting surface.

9. The connector according to claim 1, wherein: The connector further includes a fixing piece, and the fixing piece is provided at both ends of the base along the length direction, and the fixing piece is used to connect to the PCB board.

10. A battery management system, characterized in that: Comprising the connector according to any one of claims 1 to 9.

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