Connector, energy storage device and energy storage system

Abstract

The embodiment of the utility model provides a connector, an energy storage device and an energy storage system, the connector comprises a plurality of groups of electric contacts and a plug connector, the plug connector comprises an accommodating cavity, the plurality of groups of electric contacts are partially accommodated in the accommodating cavity, any two adjacent groups of electric contacts in the plurality of groups of electric contacts are arranged at intervals, and the plug connector is arranged in the accommodating cavity. The safety performance of the connector can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of batteries, and more particularly to a connector, an energy storage device, and an energy storage system. BACKGROUND

[0002] Under the background of increasing support for the development of new energy technologies worldwide, various technologies related to energy storage have been widely applied. The performance of the connector in the energy storage device has a great influence on its development. Therefore, how to improve the performance of the connector is an urgent problem to be solved. CONTENT OF THE INVENTION

[0003] The present application provides a connector, an energy storage device, and an energy storage system. By setting a gap between any two adjacent groups of electrical contacts, the safety performance of the connector can be improved.

[0004] In a first aspect, the present application provides a connector, comprising a plurality of groups of electrical contacts and a plug-in part, the plug-in part comprising a receiving cavity, and the plurality of groups of electrical contacts are partially accommodated in the receiving cavity, wherein any two adjacent groups of electrical contacts among the plurality of groups of electrical contacts are spaced apart.

[0005] In the technical solution of the present application, by setting a gap between any two adjacent groups of electrical contacts among the plurality of groups of electrical contacts, the arc discharge between the electrical contacts can be reduced, and the safety performance of the connector can be improved.

[0006] In some embodiments, the distance between any two adjacent groups of electrical contacts among the plurality of groups of electrical contacts is greater than a first distance, wherein the first distance is the distance between any two adjacent electrical contacts within each group of electrical contacts among the plurality of groups of electrical contacts.

[0007] In the technical solution of the present application, the distance between the two adjacent groups of electrical contacts is greater than the distance between the electrical contacts within the group, which can reduce the arc discharge between the electrical contacts and improve the safety performance of the connector.

[0008] In some embodiments, an insulating hollow compartment is arranged between any two adjacent groups of electrical contacts among the plurality of groups of electrical contacts.

[0009] In the technical solution of the present application, the two groups of electrical contacts can be isolated by the insulating hollow compartment, and at the same time, the creepage distance between the two groups of electrical contacts can be increased.

[0010] In some embodiments, the receiving cavity comprises a protruding part, wherein the protruding part is arranged between any two adjacent groups of electrical contacts among the plurality of groups of electrical contacts.

[0011] The technical scheme of the embodiment of the present application is characterized in that a protruding part is arranged between any two adjacent groups of the electric contact pieces, the two groups of the electric contact pieces can be isolated by the protruding part, and the creepage distance between the two groups of the electric contact pieces can be increased.

[0012] In some embodiments, the creepage distance between any two adjacent groups of the electric contact pieces is greater than 5mm, wherein the creepage distance is a distance between any two adjacent groups of the electric contact pieces along the surface of the accommodating cavity.

[0013] The technical scheme of the embodiment of the present application is characterized in that the creepage distance between any two adjacent groups of the electric contact pieces is greater than 5mm, the insulation performance of the connector can be improved, and the safety performance of the connector is improved.

[0014] In some embodiments, the plurality of groups of the electric contact pieces are detachably connected with the plug-in part.

[0015] The technical scheme of the embodiment of the present application is characterized in that the plurality of groups of the electric contact pieces are detachably connected with the plug-in part, the plurality of groups of the electric contact pieces can be quickly disconnected and reconnected, and the damaged parts can be more conveniently maintained and replaced.

[0016] In some embodiments, the accommodating cavity comprises a plurality of sub-accommodating cavities, and each of the electric contact pieces in the plurality of groups of the electric contact pieces is accommodated in the plurality of sub-accommodating cavities.

[0017] The technical scheme of the embodiment of the present application is characterized in that the plurality of sub-accommodating cavities are arranged in the accommodating cavity, and each of the electric contact pieces is accommodated in the sub-accommodating cavities, the electric contact pieces can be effectively spaced, and the electric contact pieces can be fixed by the sub-accommodating cavities.

[0018] In some embodiments, each of the electric contact pieces in the plurality of groups of the electric contact pieces comprises a terminal and a pin, and the terminal is fixedly connected with the pin.

[0019] The technical scheme of the embodiment of the present application is characterized in that the terminal is one-to-one connected with the pin, and the terminal is used for electrically connecting the pin and an external device.

[0020] In some embodiments, the terminal is connected with the sub-accommodating cavity, and is used for fixing the terminal.

[0021] The technical scheme of the embodiment of the present application is characterized in that each of the terminals is connected with the sub-accommodating cavity, the terminals can be effectively spaced, and the terminals can be fixed by the sub-accommodating cavities.

[0022] In some embodiments, each of the plurality of groups of the pins in the plurality of groups of the electric contact pieces is staggered arranged in two adjacent rows of the pins or two adjacent columns of the pins.

[0023] The technical scheme of the embodiment of the present application is characterized in that the two adjacent rows of the pins or the two adjacent columns of the pins are staggered arranged, the misplug can be reduced, the connector can be inserted in one way, and the safety performance and the reliability of the connector are improved.

[0024] In some embodiments, the number of pins in each of the plurality of groups of pins is different.

[0025] In the technical solution of the embodiments of the present application, the different number of pins can also reduce the misplug, ensure that the connector is inserted in one way, and improve the safety and reliability of the connection.

[0026] In some embodiments, the connector further comprises a fixing member connected with the plug-in member for fixing the terminal.

[0027] In the technical solution of the embodiments of the present application, the fixing member is connected with the plug-in member to fix the terminal again, thereby improving the stability of the terminal in the plug-in member.

[0028] In some embodiments, the fixing member is detachably connected with the plug-in member.

[0029] In the technical solution of the embodiments of the present application, the detachable connection between the fixing member and the plug-in member can quickly and easily disconnect and reconnect, and can also be more convenient for maintenance and replacement of damaged parts.

[0030] In some embodiments, the connector further comprises an insulating shell, which is detachably connected with the plug-in member.

[0031] In the technical solution of the embodiments of the present application, the detachable connection between the insulating shell and the plug-in member forms a connector, the insulating shell can further protect the connector, the detachable connection can quickly and easily disconnect and reconnect, and can also be more convenient for maintenance and replacement of damaged parts.

[0032] In some embodiments, the insulating shell is provided with a plurality of fixing portions for fixing connection on the outer wall away from the plug-in member.

[0033] In the technical solution of the embodiments of the present application, the insulating shell is provided with a plurality of fixing portions on the outer wall away from the plug-in member, and the external device is connected and fixed, which can improve the stability and reliability of the connector during connection with the external device.

[0034] In a second aspect, a power storage device is provided, comprising a battery management system and a connector as in the first aspect or any one of the embodiments of the first aspect, the connector being used for connecting the battery management system.

[0035] In a third aspect, a power storage system is provided, comprising a power conversion device and a power storage device as in the second aspect or any one of the embodiments of the second aspect, the power conversion device being used for electrically connecting a power generation device and the power storage device. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 Part of the structure of the battery device of the embodiments of the present application is shown.

[0037] Figure 2 An exploded view of a connector according to an embodiment of the application is shown.

[0038] Figure 3 An internal structure diagram of a connector according to an embodiment of the application is shown.

[0039] Figure 4 An internal structure diagram of a connector according to another embodiment of the application is shown.

[0040] Figure 5 An internal structure diagram of a connector according to a further embodiment of the application is shown.

[0041] Figure 6 An internal structure diagram of a connector according to a further embodiment of the application is shown.

[0042] Figure 7 A cross-sectional diagram of a connector according to a further embodiment of the application is shown.

[0043] Figure 8 A schematic diagram of an energy storage device according to an embodiment of the application is shown. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present application will be described below with reference to the drawings.

[0045] In order to make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0046] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used in the specification of the present application are only for the purpose of describing the specific embodiments of the present application, and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion. The terms "first", "second" and the like in the specification and claims of the present application and the above description of drawings are used to distinguish different objects, and are not intended to describe a particular order or primary and secondary relationships.

[0047] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0048] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0049] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0050] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0051] In this application, "multiple" refers to two or more (including two), and similarly, "multiple groups" refers to two or more (including two), and "multiple pieces" refers to two or more (including two).

[0052] Unless otherwise specified, all embodiments and optional embodiments of this application can be combined to form new technical solutions.

[0053] Unless otherwise specified, all technical features and optional technical features of this application may be combined to form new technical solutions.

[0054] Unless otherwise specified, all steps of this application may be performed sequentially or randomly, preferably sequentially. For example, the method includes steps (a) and (b), indicating that the method may include steps (a) and (b) performed sequentially, or it may include steps (b) and (a) performed sequentially. For example, the mention that the method may also include step (c) indicates that step (c) may be added to the method in any order; for example, the method may include steps (a), (b), and (c), or it may include steps (a), (c), and (b), or it may include steps (c), (a), and (b), etc.

[0055] This application provides an energy storage device including one or more battery clusters to increase the voltage and capacity of the energy storage device. The battery cluster may include multiple battery devices, which are connected in series via a busbar to increase the voltage of the energy storage device. When the energy storage device includes multiple battery clusters, the multiple battery clusters are connected in parallel to increase the capacity of the energy storage device.

[0056] Energy storage devices can be used in energy storage power stations, wind power generation systems, solar power generation systems, mobile power systems, or temporary power supply systems. Energy storage devices can store electrical energy as needed and output it when appropriate. For example, an energy storage device can store electrical energy during off-peak hours and provide power to relevant users or electrical equipment during peak hours. The energy storage system provided in this application embodiment can be any power system that requires energy storage devices.

[0057] In some embodiments, the energy storage device is an energy storage container or an energy storage cabinet.

[0058] In some embodiments, the energy storage device may include a cabinet and one or more battery clusters housed within the cabinet.

[0059] In some embodiments, the energy storage device may include modules such as a thermal management module, a main control module, a central control module, a power distribution module, and a fire protection module.

[0060] As an example, the thermal management module may include a liquid cooling unit that supplies coolant to each battery device via piping to regulate the temperature of the individual battery cells.

[0061] As an example, the main control module can serve as the battery management unit for the battery cluster, used to monitor and manage the battery cluster. The main control module can monitor information such as the current, voltage, power, or temperature of the battery cluster. For instance, it can control the charging and discharging current and voltage of the battery cluster. The main control module includes modules such as an auxiliary battery management unit (SBMU) and a fusion switch.

[0062] As an example, the central control module can serve as the battery management unit for an energy storage device, used to monitor and manage the device. The central control module can monitor information such as the energy storage device's current, voltage, power, state of charge, or temperature. For instance, it can control the charging and discharging current and voltage of the energy storage device. As an example, the central control module includes modules such as an Insulation Monitoring Module (IMM), a Master Battery Management Unit (MBMU), an Ethernet (ETH) module, and a fiber optic conversion module.

[0063] As an example, a fire protection system includes control panels, detectors, alarm devices, etc., used to detect, alarm, or extinguish fires in energy storage systems.

[0064] As an example, the power distribution unit can be used to distribute power to the power modules of the energy storage device.

[0065] Normally, when there is a set of electrical contacts in a connector, a certain gap is maintained between the multiple electrical contacts in the set. When there are multiple sets of electrical contacts in a connector, a gap also needs to be set between adjacent sets of electrical contacts. If the gap between two sets of electrical contacts is too small, arcing may occur, causing safety problems.

[0066] To alleviate the above problems, in connectors with multiple sets of electrical contacts, a certain gap can be set between any two adjacent sets of electrical contacts to reduce connector safety issues.

[0067] Based on the above considerations, this application proposes a connector including multiple sets of electrical contacts and a plug-in member. The plug-in member includes a receiving cavity, in which the multiple sets of electrical contacts are partially housed. Any two adjacent sets of electrical contacts are spaced apart. This spacing between adjacent sets of electrical contacts improves the safety performance of the connector.

[0068] Figure 1 A partial structural schematic diagram of the battery device 10 according to an embodiment of this application is shown. Figure 1 As shown, the battery device 10 of this application embodiment may include a plurality of battery cells 12. The shape of the battery cell 12 in this application embodiment can be set according to actual application. For example, the battery cell 12 can be as follows: Figure 1 The cylindrical shape shown, or it could be different. Figure 1 The embodiments shown may be cuboids or other shapes, but are not limited to these.

[0069] It should be understood that, such as Figure 1As shown, the battery device 10 of this embodiment may further include a housing 11, which can be used to accommodate multiple battery cells 12. The housing 11 of this embodiment has a hollow interior, and the multiple battery cells 12 are accommodated within the housing 11. The housing 11 may include two parts, referred to herein as a first housing portion 111 and a second housing portion 112, which are fastened together. The shapes of the first housing portion 111 and the second housing portion 112 can be determined according to the shape of the components housed inside, for example, according to the shape of the combination of the multiple battery cells 12 housed inside. At least one of the first housing portion 111 and the second housing portion 112 has an opening. For example, as... Figure 1 As shown, the first housing portion 111 and the second housing portion 112 can both be hollow cuboids with one open side each. The openings of the first housing portion 111 and the second housing portion 112 are opposite to each other, and the first housing portion 111 and the second housing portion 112 are interlocked to form a housing 11 with a closed chamber, which can be used to accommodate multiple battery cells 12. The multiple battery cells 12 are connected in parallel, series, or mixed and placed inside the housing 11 formed by the interlocking of the first housing portion 111 and the second housing portion 112.

[0070] For example, unlike Figure 1 As shown, either the first housing portion 111 or the second housing portion 112 may have only one hollow cuboid with an opening, while the other is plate-shaped to cover the opening. Taking the second housing portion 112 as a hollow cuboid with one opening, and the first housing portion 111 as a plate-shaped example, then the first housing portion 111 covers the opening of the second housing portion 112 to form a housing 11 with a closed chamber, which can be used to accommodate multiple battery cells 12.

[0071] Figure 2 An exploded view of a connector 20 according to one embodiment of this application is shown.

[0072] According to some embodiments of this application, refer to Figure 2 Please refer to further details. Figures 3 to 7 , Figure 3 A schematic diagram of the internal structure of a connector 20 according to an embodiment of this application is shown. Figure 4 This paper shows a schematic diagram of the internal structure of the connector 20 according to yet another embodiment of the present application. Figure 5 This paper shows a schematic diagram of the internal structure of the connector 20 according to another embodiment of the present application. Figure 6 This paper shows a schematic diagram of the internal structure of the connector 20 according to another embodiment of the present application. Figure 7A cross-sectional schematic diagram of a connector 20 according to another embodiment of this application is shown. This application provides a connector including multiple sets of electrical contacts 22 and a plug member 24. The plug member 24 includes a receiving cavity in which the multiple sets of electrical contacts 22 are partially received, wherein any two adjacent sets of electrical contacts 22 are spaced apart.

[0073] As shown in the figure, the X direction is the length direction of the connector 24, the Y direction is the width direction of the connector 24, and the Z direction is the thickness direction of the connector 24.

[0074] like Figure 2 As shown, taking two sets of electrical contacts 22 as an example, the first set of electrical contacts 22 and the second set of electrical contacts 22 are spaced apart along the length direction of the connector 24 (X direction in the figure), as shown. Figure 3 As shown, the two sets of electrical contacts 22, spaced apart, are inserted into the receiving cavity of the connector 24 for fixation. By setting a gap between any two adjacent sets of electrical contacts 22, the problem of arcing between adjacent sets of electrical contacts 22 is reduced, alleviating connector safety issues.

[0075] It should be understood that each group of electrical contacts 22 may include one electrical contact 22 or multiple electrical contacts 22, and this application does not limit it in any way.

[0076] In addition, in this embodiment of the application, taking two sets of electrical contacts 22 as an example, one end of the connector can be connected to the Battery Management Unit (BMU) and the low-voltage power supply, and the other end can be connected to the Cell Sample Circuit (CSC). Specifically, one end of the electrical contact 22 can be connected to the BMU and the low-voltage power supply through a wire, and the other end can be connected to the CSC.

[0077] Optionally, based on some embodiments of this application, reference may be made to... Figure 4 The distance between any two adjacent sets of electrical contacts 22 in the plurality of sets of electrical contacts 22 is greater than a first distance, wherein the first distance is the distance between any two adjacent electrical contacts 22 within each set of electrical contacts 22 in the plurality of sets of electrical contacts 22.

[0078] like Figure 4As shown, the distance between any two adjacent sets of electrical contacts 22 in the multiple sets of electrical contacts 22 is the distance along the length direction of the plug 24 (X direction in the figure). When each set of electrical contacts 22 includes multiple electrical contacts 22, the distance between any two adjacent sets of electrical contacts 22 along the length direction of the plug 24 is greater than the distance between two adjacent electrical contacts 22 in the set, so that a suitable distance is maintained between any two sets of electrical contacts 22, reducing the safety issues of the connector.

[0079] Optionally, the distance between any two adjacent sets of electrical contacts 22 in the multiple sets of electrical contacts 22 can also be greater than the distance between non-adjacent electrical contacts 22 in the same set. The distance between any two adjacent sets of electrical contacts 22 can be adjusted according to the actual situation, and this application does not impose any limitations on this.

[0080] According to some embodiments of this application, optionally, an insulating hollow chamber 242 is provided between any two adjacent sets of electrical contacts 22 in the plurality of sets of electrical contacts 22.

[0081] You can continue to refer to this. Figure 2 and Figure 3 After accommodating multiple sets of electrical contacts 22 in the receiving cavity, an insulating hollow chamber 242 can be provided between any two adjacent sets of electrical contacts 22. The shape of the insulating hollow chamber 242 is not limited in this application. By providing the insulating hollow chamber 242, the two adjacent sets of electrical contacts 22 are further isolated, reducing the safety issues of the connector, while increasing the creepage distance between any two sets of electrical contacts 22, that is, the distance between any two sets of electrical contacts 22 around the surface of the insulating hollow chamber 242.

[0082] Optionally, an insulating hollow chamber 242 can be provided between any two adjacent sets of electrical contacts 22 to increase the electrical clearance between them. Increasing the electrical clearance can improve insulation performance and reduce the risk of insulation breakdown. The electrical clearance is the shortest distance between any two sets of electrical contacts 22.

[0083] Optionally, in this embodiment, some protrusions (not shown in the figure) can be provided on the inner surface of the insulating hollow chamber 242 to increase the creepage distance between any two sets of electrical contacts 22. Increasing the creepage distance can reduce the chance of arc jumping on the surface of the insulating material, thereby improving the insulation performance and reducing the risk of insulation breakdown.

[0084] According to some embodiments of this application, optionally, the receiving cavity includes a protrusion, wherein the protrusion is disposed between any two adjacent sets of electrical contacts 22 in a plurality of sets of electrical contacts 22.

[0085] A protrusion is provided on the inner wall of the cavity, and the protrusion is located between any two adjacent sets of electrical contacts 22 in the plurality of sets of electrical contacts 22, so as to increase the creepage distance between any two sets of electrical contacts 22. Increasing the creepage distance can reduce the chance of arc jumping on the surface of the insulating material, thereby improving the insulation performance and reducing the risk of insulation breakdown.

[0086] Optionally, based on some embodiments of this application, reference may be made to... Figure 5 The creepage distance between any two adjacent sets of electrical contacts 22 is greater than 5 mm, wherein the creepage distance is the distance between any two adjacent sets of electrical contacts 22 along the surface of the receiving cavity.

[0087] In this embodiment, the creepage distance between any two sets of electrical contacts 22 is set to be greater than 5mm to improve the insulation performance of the connector and reduce safety issues of the connector.

[0088] According to some embodiments of this application, optionally, multiple sets of electrical contacts 22 are detachably connected to the plug-in 24.

[0089] Multiple sets of electrical contacts 22 can be inserted into the connector 24 in the opposite direction of the width direction (Y direction in the figure) of the connector 24 and snap-fitted with the connector 24 to achieve fixation. Multiple sets of electrical contacts 22 can be pulled out from the connector 24 in the width direction of the connector 24 to achieve detachable connection. The detachable connection between multiple sets of electrical contacts 22 and connector 24 can be quickly and easily disconnected and reconnected, and can also make it more convenient to maintain and replace damaged parts.

[0090] Optionally, based on some embodiments of this application, reference may be made to... Figure 3 The receiving cavity includes multiple sub-receiving cavities 241, and each of the multiple sets of electrical contacts 22 is respectively received in the multiple sub-receiving cavities 241.

[0091] like Figure 3 As shown, multiple sub-receiving cavities 241 extend along the width direction (Y direction in the figure) of the plug-in 24. The number of sub-receiving cavities 241 is the same as the number of electrical contacts 22, and their positions are also the same. Therefore, each electrical contact 22 in multiple sets of electrical contacts 22 can be accommodated in multiple sub-receiving cavities 241 respectively. This can separate each electrical contact 22 while better fixing the electrical contact 22.

[0092] According to some embodiments of this application, optionally, each of the multiple sets of electrical contacts 22 includes a terminal 221 and a pin 222, wherein each terminal of the terminal 221 is fixedly connected to the pin 222.

[0093] Continue to refer to Figures 2 to 4For example, a set of electrical contacts 22 includes six terminals 221 and six pins 222, with each of the six terminals 221 fixedly connected to one of the six pins 222. The number of terminals 221 is the same as the number of pins 222. In this application, one end of each terminal 221 is connected to a pin 222, which is connected to the CSC circuit board. The other end of each terminal 221 is connected to a wire, ultimately connecting to the BMU and the low-voltage power supply. The connector is used to connect the BMU, the low-voltage power supply, and the CSC for data transmission.

[0094] It should be understood that only some of the terminals 221 are shown in the figures of this application, such as terminals 2211, 2212, 2213 and 2214. The actual number of terminals 221 should be consistent with the number of pins 222.

[0095] According to some embodiments of this application, terminal 221 may optionally be connected to sub-receiving cavity 241 for fixing terminal 221.

[0096] Continue to refer to Figures 2 to 4 Terminal 221 is connected to connector 24, and more specifically, terminal 221 is connected to sub-receiving cavity 241 for fixing terminal 221. The number of terminals 221 and the number of sub-receiving cavities 241 can be the same, that is, one sub-receiving cavity 241 accommodates one terminal 221. Optionally, the number of sub-receiving cavities 241 can also be greater than the number of terminals 221, and this application does not limit this. Additionally, see also... Figure 3 and Figure 4 The portion of pin 222 is also connected to the sub-receiving cavity 241 for better fixation of pin 222. In addition, the sub-receiving cavity 241 is made of insulating material, and the connection of the portion of pin 222 to the sub-receiving cavity 241 can also better isolate each pin 222 to improve the safety performance of the connector.

[0097] According to some embodiments of this application, optionally, adjacent rows of pins 222 or adjacent columns of pins 222 in each group of pins 222 are staggered.

[0098] You can refer to this. Figure 2 and Figure 3Taking the first group of pins 222 along the length direction of the connector 24 (X direction in the figure) as an example, the first group of pins 222 has two rows of pins 222 along the thickness direction of the pins 222 (Z direction in the figure), with three pins 222 in each row. The upper and lower rows are staggered, which can reduce mis-insertion and ensure that the connector is inserted in one way, improving the safety and reliability of the connection. As another example, taking the first group of pins 222 and the second group of pins 222 along the length direction of the connector 24 (X direction in the figure) as an example, any two rows of pins 222 or two adjacent columns of pins 222 in the first group of pins 222 and the second group of pins 222 are staggered.

[0099] According to some embodiments of this application, optionally, the number of pins 222 in each of the multiple sets of pins 222 is different.

[0100] Each group of pins 222 may include one pin 222 or may include multiple pins 222. When each group of pins 222 includes multiple pins 222, the number of pins in adjacent rows or columns may be different. Different numbers of pins 222 can reduce mis-insertion, ensure that the connector is inserted in one manner, and improve the safety and reliability of the connection.

[0101] It should be understood that the number of pins 222 in each of the multiple sets of pins 222 can also be the same, for example, each of the two sets of pins 222 has 8 pins.

[0102] According to some embodiments of this application, the connector may optionally include a fixing member 23, which is connected to the plug member 24 for fixing the terminal 221.

[0103] You can refer to this. Figure 6 The fixing member 23 can be inserted into the connector 24 on a surface perpendicular to the Z direction and is snapped into and fixed with the connector 24. The connector 24 is also provided with a receiving cavity extending along the width direction of the connector. Multiple terminals 221 are respectively inserted into the receiving cavity of the fixing member 23 to fix the multiple terminals 221. The fixing member 23 can be made of insulating material, which can better insulate each of the multiple terminals 221.

[0104] Optional, you can refer to Figure 7 The fixing member 23 is inserted into the plug-in member 24 on the surface of the plug-in member 24 perpendicular to the Z direction, and after being snapped and fixed with the plug-in member 24, the insulating hollow chamber 242 includes two parts with the same function: to accommodate and fix the terminal 221 and to separate adjacent terminals 221 to improve insulation performance and improve the safety performance of the connector.

[0105] According to some embodiments of this application, the fastener 23 and the connector 24 may optionally be detachably connected.

[0106] The fastener 23 snaps into the connector 24 to secure the terminal 221. The detachable connection allows for quick and easy disconnection and reconnection, and also facilitates the maintenance and replacement of damaged parts.

[0107] According to some embodiments of this application, the connector may optionally include an insulating housing 21, which is detachably connected to the plug 24.

[0108] Continue to refer to Figures 2 to 4 The connector also includes an insulating housing 21, wherein the inner wall of the insulating housing 21 is provided with grooves and protrusions that are adapted to the protrusions and grooves on the outer surface of the plug 24 for better snap-fit. The removable design allows for replacement if one of the components is damaged.

[0109] According to some embodiments of this application, optionally, a plurality of fixing parts 211 for fixed connection are provided on the outer wall of the housing 21 away from the plug 24.

[0110] Continue to refer to Figures 2 to 4 Multiple fixing parts 211 are provided on the outer wall of the housing away from the plug 24. The multiple fixing parts 211 are used to fix the connector and external devices. For example, in this application, the multiple fixing parts 211 are used to fix the connector and the CSC circuit board, which can improve the stability and reliability of the connector and external devices.

[0111] Figure 8 A schematic diagram of an energy storage device 30 provided in an embodiment of this application is shown.

[0112] According to some embodiments of this application, this application also provides an energy storage device 30, including a battery management system 31 and a connector 32, wherein the connector 32 is used to connect to the battery management system 31. Optionally, the connector 32 can be the connector 20 in any of the above-described solutions.

[0113] According to some embodiments of this application, this application also provides an energy storage system, including a power conversion device and an energy storage device of any of the above schemes, wherein the power conversion device is used to electrically connect a power generation device and an energy storage device.

[0114] According to some embodiments of this application, see Figures 2 to 7This application provides a connector including multiple sets of electrical contacts 22 and a plug 24. The plug 24 includes a receiving cavity in which the multiple sets of electrical contacts 22 are partially received, wherein any two adjacent sets of electrical contacts 22 are spaced apart. The spacing between any two adjacent sets of electrical contacts 22 alleviates connector safety issues.

[0115] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A connector characterized by comprising: The connector comprises a plurality of groups of electrical contacts (22) and a plug (24), the plug (24) comprising a receiving cavity, the plurality of groups of electrical contacts (22) being partially received in the receiving cavity, wherein any two adjacent groups of electrical contacts (22) among the plurality of groups of electrical contacts (22) are spaced apart.

2. The connector of claim 1, wherein The distance between any two adjacent groups of electrical contacts (22) among the plurality of groups of electrical contacts (22) is greater than a first distance, wherein the first distance is the distance between any two adjacent electrical contacts (22) within each group of electrical contacts (22) among the plurality of groups of electrical contacts (22).

3. The connector of claim 1, wherein An insulating hollow compartment (242) is arranged between any two adjacent groups of electrical contacts (22) among the plurality of groups of electrical contacts (22).

4. The connector of claim 1, wherein The receiving cavity comprises a protrusion, wherein the protrusion is arranged between any two adjacent groups of electrical contacts (22) among the plurality of groups of electrical contacts (22).

5. The connector of claim 4, wherein, The creepage distance between the any two adjacent groups of electrical contacts (22) is greater than 5mm, wherein the creepage distance is the distance along the surface of the receiving cavity between the any two adjacent groups of electrical contacts (22).

6. The connector of any one of claims 1 to 5, wherein, The plurality of groups of electrical contacts (22) are detachably connected with the plug (24).

7. The connector of any one of claims 1 to 5, wherein, The receiving cavity comprises a plurality of sub-receiving cavities (241), each of the electrical contacts (22) among the plurality of groups of electrical contacts (22) is received in a sub-receiving cavity (241) among the plurality of sub-receiving cavities (241).

8. The connector of claim 7, wherein, Each of the electrical contacts (22) among the plurality of groups of electrical contacts (22) comprises a terminal (221) and a pin (222), wherein the terminal (221) is fixedly connected with the pin (222).

9. The connector of claim 8, wherein, The terminal (221) is connected with the sub-receiving cavity (241) for fixing the terminal (221).

10. The connector of claim 8 or 9, wherein, The adjacent two rows of pins (222) or the adjacent two columns of pins (222) of each of the plurality of groups of pins (222) among the plurality of groups of pins (222) are staggered.

11. The connector of claim 8 or 9, wherein The number of pins (222) in each of the plurality of groups of pins (222) among the plurality of groups of pins (222) is different.

12. The connector of claim 8 or 9, wherein, The connector further comprises a fixing member (23), The fixing member (23) is connected with the plug (24) for fixing the terminal (221).

13. The connector of claim 12, wherein, The fixing member (23) is detachably connected with the plug (24).

14. The connector of any one of claims 1 to 5, wherein, The connector further comprises an insulating housing (21), the insulating housing (21) being detachably connected with the plug (24).

15. The connector of claim 14, wherein, A plurality of fixing portions (211) for fixing connection are arranged on the outer wall of the insulating housing (21) away from the plug (24).

16. An energy storage device, characterized by The battery management system comprises the connector as claimed in any one of claims 1 to 15, the connector being used for connecting the battery management system.

17. An energy storage system characterized by, The power conversion device comprises the energy storage device as claimed in claim 16, the power conversion device being used for electrically connecting the power generation device and the energy storage device.

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