Mating components, power module, battery module, battery pack, system, device, energy storage unit, conversion module and energy storage apparatus

Abstract

The present application provides mating components, a power module, a battery module, a battery pack, a system, a device, an energy storage unit, a conversion module, and an energy storage apparatus. A first mating component comprises: a plurality of first conductive components corresponding to a plurality of second conductive components of a second mating component, wherein during the process of the first mating component mating with the second mating component, moments at which the plurality of first conductive components and the corresponding second conductive components are electrically connected to each other are different. The mating components of the present application reduce the installation size of an occupied panel and the assembly time.

Description

Connector components, power modules, battery modules, battery packs, systems, equipment, energy storage units, conversion modules, and energy storage devices.

[0001] This application claims priority to Chinese Patent Application No. 202411766011.0, filed on November 29, 2024, entitled "Plug-in Components, Power Modules, Battery Modules, Battery Packs, Systems and Devices", the entire contents of which are incorporated herein by reference.

[0002] This application claims priority to Chinese Patent Application No. 202422960350.4, filed on November 29, 2024, entitled “An Energy Storage Unit, Conversion Module and Energy Storage Device”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to plug-in component technology, and more specifically, to a plug-in component, power module, battery module, battery pack, system, equipment, energy storage unit, conversion module, and energy storage device. Background Technology

[0004] With the continuous development of electronic technology, two modules / devices can be connected through connectors to transmit data, power and other signals between modules.

[0005] Currently, modules typically use multiple different connectors, which are sequentially connected to establish connections between different signals. For example, a low-voltage connector, a high-voltage connector, and a signal connector are used between a battery module and a power module. The low-voltage connector can be connected first, followed by the high-voltage connector, and then the signal connector, thus establishing connections between different signals between the battery module and the power module in a time-sequential manner. This allows for the transmission of low-voltage electricity through the low-voltage connector, the transmission of high-voltage electricity through the high-voltage connector, and communication and data exchange through the signal connector.

[0006] However, this method has the drawbacks of requiring multiple connectors to occupy a large panel mounting space, and each connector needs to be installed individually, resulting in a long assembly time. Summary of the Invention

[0007] The purpose of this application is to provide a plug-in component, power module, battery module, battery pack, system, equipment, energy storage unit, conversion module, and energy storage device to solve the problems of multiple connectors occupying a large mounting panel size and long assembly time.

[0008] In a first aspect, this application provides a first plug-in component (10), comprising:

[0009] Multiple first conductive components (11) correspond to multiple second conductive components (21) of the second plug-in component (20);

[0010] During the insertion process of the first plug-in component (10) and the second plug-in component (20), the electrical connection times of the plurality of first conductive components (11) and the corresponding second conductive components (21) are different.

[0011] Optionally, the plurality of first conductive components (11) include a first pre-charge component (34) for connecting with the second pre-charge component (14) of the second conductive component (21) to realize the connection between the first device and the pre-charge unit (61) in the second device;

[0012] The plurality of first conductive components (11) include a first power component (35) for connecting to the second power component (15) of the second conductive component (21) to realize the connection between the DC / DC converter (62) of the first device and the second device;

[0013] The electrical connection time of the first pre-charge component (34) is earlier than the electrical connection time of the first power component (35).

[0014] Optionally, the first device is a battery module (5); the second device is a power module (6).

[0015] Optionally, the first precharge component (34) includes: a first sub-precharge component (43) and a second sub-precharge component (44);

[0016] The first sub-precharge component (43) is connected to the first input terminal of the precharge unit (61); the first output terminal of the precharge unit (61) is connected to the low-voltage first input terminal of the DC / DC converter (62);

[0017] The second sub-precharge component (44) is connected to the second input terminal of the precharge unit (61); the second output terminal of the precharge unit (61) is connected to the low-voltage second input terminal of the DC / DC converter (62).

[0018] Optionally, the pre-charge unit (61) includes: a resistor;

[0019] One end of the resistor serves as the first input terminal of the precharge unit (61) and is connected to the first sub-precharge component (43); the other end of the resistor serves as the first output terminal of the precharge unit (61) and is connected to the low-voltage first input terminal of the DC / DC converter (62).

[0020] The second input terminal of the precharge unit (61) is connected to the second sub-precharge component (44), and the second output terminal of the precharge unit (61) is connected to the low-voltage second input terminal of the DC / DC converter (62).

[0021] Optionally, the first power component (35) includes a first low-voltage power component (37);

[0022] The first low-voltage power component (37) is used to connect with the second low-voltage power component (17) of the second power component (15) to transmit the voltage output by the battery module (5).

[0023] Optionally, the first power component (35) includes a first high-voltage power component (38);

[0024] The first high-voltage power component (38) is used to connect with the second high-voltage power component (18) of the second power component (15) to transmit the voltage output by the DC / DC converter (62).

[0025] Optionally, the first low-voltage power component (37) includes: a first sub-low-voltage power component (41) and a second sub-low-voltage power component (42);

[0026] The first sub-low voltage power unit (41) is connected to the low voltage first input terminal of the DC / DC converter (62);

[0027] The second sub-low voltage power unit (42) is connected to the low voltage second input terminal of the DC / DC converter (62).

[0028] Optionally, the plurality of first conductive components (11) include a first signal component (39) for connection with the second signal component (19) of the second conductive component (21) to realize the connection between the communication unit (63) of the battery module (5) and the power module (6);

[0029] The electrical connection time of the first signal component (39) is later than the electrical connection time of the first power component (35).

[0030] Optionally, the plurality of first conductive components (11) include a first position detection component (45) for connection with the second position detection component (46) of the second conductive component (21) to realize connection detection between the battery module (5) and the power module (6);

[0031] The electrical connection time of the first positioning detection component (45) is later than the electrical connection time of the first power component (35).

[0032] Optionally, the first plug-in component (10) is connected to the power module (6).

[0033] Optionally, the power module (6) includes: a circuit board;

[0034] The first plug-in component (10) is soldered onto the circuit board.

[0035] Optionally, the first plug-in component (10) further includes a mounting plate for fixing the first plug-in component (10).

[0036] Optionally, the power module (6) has a metal housing.

[0037] Optionally, the plurality of first conductive components (11) include: a first grounding component (36);

[0038] The first grounding component (36) is used to connect with the second grounding component (16) of the second conductive component (21) to realize the connection between the housing of the power module (6) and the housing of the battery module (5); wherein the housing of the battery module (5) is grounded.

[0039] Optionally, the lengths of the plurality of first conductive components (11) and / or the plurality of second conductive components (21) are different.

[0040] Optionally, the plurality of first conductive components (11) have the same length, and the plurality of second conductive components (21) have different lengths.

[0041] Optionally, the plurality of first conductive components (11) include a plurality of conductive pins (12), the plurality of conductive pins (12) having the same length in the insertion direction.

[0042] Optionally, the lengths of the plurality of first conductive components (11) are different, and the lengths of the plurality of second conductive components (21) are the same.

[0043] Optionally, the first conductive component (11) includes a conductive pin (12) configured to make electrical contact with the second conductive component (21).

[0044] Optionally, the conductive pins (12) of the plurality of first conductive components (11) have different lengths in the insertion direction.

[0045] Optionally, the conductive pins (12) of the plurality of first conductive components (11) are telescopic structures, and the lengths of the conductive pins (12) of the plurality of first conductive components (11) are different.

[0046] Optionally, the conductive pins (12) of the plurality of first conductive components (11) have different cross-sectional dimensions.

[0047] Optionally, the lengths of the plurality of first conductive components (11) are different, and the lengths of the plurality of second conductive components (21) are different.

[0048] Optionally, the first conductive component (11) includes a retractable conductive pin (12); the conductive pins (12) of the plurality of first conductive components (11) have different lengths.

[0049] Optionally, the plurality of first conductive components (11) are divided into multi-level first conductive component groups (31), and the plurality of second conductive components (21) are divided into multi-level second conductive component groups (32);

[0050] Among them, the first conductive component group (31) and the second conductive component group (32) of the same level are electrically connected at the same time, while the first conductive component group (31) and the second conductive component group (32) of different levels are electrically connected at different times.

[0051] Optionally, the multi-level first conductive component group (31) includes: a first-level first conductive component group (311), a second-level first conductive component group (312), and a third-level first conductive component group (313) ordered from high to low priority;

[0052] Among them, the higher the priority, the earlier the electrical connection time.

[0053] Optionally, in the multi-level first conductive component group (31), the first conductive component (11) with higher priority has a longer length, and the first conductive components (11) of the same level have the same length.

[0054] Optionally, the first conductive components (11) in the multi-level first conductive component group (31) have the same length;

[0055] In the multi-level second conductive component group (32), the second conductive component (21) with higher priority has a longer length, and the second conductive components (21) of the same level have the same length.

[0056] Secondly, this application provides a second plug-in component (20), comprising:

[0057] Multiple second conductive components (21) correspond to multiple first conductive components (11) of the first plug-in component (10);

[0058] During the insertion process of the first plug-in component (10) and the second plug-in component (20), the electrical connection times of the plurality of first conductive components (11) and the corresponding second conductive components (21) are different.

[0059] Optionally, the plurality of second conductive components (21) include a second pre-charge component (14) for connecting with the first pre-charge component (34) of the first conductive component (11) to realize the connection between the first device and the pre-charge unit (61) in the second device;

[0060] The plurality of second conductive components (21) include a second power component (15) for connecting to the first power component (35) of the first conductive component (11) to realize the connection between the DC / DC converter (62) of the first device and the second device;

[0061] The electrical connection time of the second pre-charge component (14) is earlier than the electrical connection time of the second power component (15).

[0062] Optionally, the first device is a battery module (5); the second device is a power module (6).

[0063] Optionally, the second precharge component (14) includes: a third sub-precharge component (47) and a fourth sub-precharge component (48);

[0064] The third sub-precharge component (47) is connected to the first output terminal of the battery module (5);

[0065] The fourth sub-precharge component (48) is connected to the second output terminal of the battery module (5).

[0066] Optionally, the second power unit (15) includes a second low-voltage power unit (17);

[0067] The second low-voltage power component (17) is used to connect with the first low-voltage power component (37) of the first power component (35) to transmit the voltage output by the battery module (5).

[0068] Optionally, the second power component (15) includes a second high-voltage power component (18);

[0069] The second high-voltage power component (18) is connected to the first high-voltage power component (38) of the first power component (35) to transmit the voltage output by the DC / DC converter (62).

[0070] Optionally, the second low-voltage power component (17) includes: a third sub-low-voltage power component (26) and a fourth sub-low-voltage power component (27);

[0071] The third sub-low-voltage power component (26) is connected to the first output terminal of the battery module (5);

[0072] The fourth sub-low-voltage power component (27) is connected to the second output terminal of the battery module (5).

[0073] Optionally, the plurality of second conductive components (21) include a second signal component (19) for connection with the first signal component (39) of the first conductive component (11) to realize the connection between the communication unit (63) of the battery module (5) and the power module (6);

[0074] The electrical connection time of the second signal component (19) is later than the electrical connection time of the second power component (15).

[0075] Optionally, the plurality of second conductive components (21) include a second position detection component (46) for connecting with the first position detection component (45) of the first conductive component (11) to realize connection detection between the battery module (5) and the power module (6);

[0076] The electrical connection time of the second positioning detection component (46) is later than the electrical connection time of the second power component (15).

[0077] Optionally, the second plug-in component (20) is connected to the battery module (5).

[0078] Optionally, the second plug-in component (20) further includes a mounting plate for fixing the second plug-in component (20).

[0079] Optionally, the battery module (5) has a metal casing.

[0080] Optionally, the plurality of second conductive components (21) include: a second grounding component (16);

[0081] The second grounding component (16) is used to connect with the first grounding component (36) of the first conductive component (11) to realize the connection between the housing of the power module (6) and the housing of the battery module (5); wherein the housing of the battery module (5) is grounded.

[0082] Optionally, the lengths of the plurality of first conductive components (11) and / or the plurality of second conductive components (21) are different.

[0083] Optionally, the plurality of first conductive components (11) have the same length, and the plurality of second conductive components (21) have different lengths.

[0084] Optionally, the second conductive component (21) includes a conductive socket (22) having a conductive inner wall (23), and the conductive inner walls (23) of the plurality of second conductive components (21) have different lengths.

[0085] Optionally, the second conductive component (21) includes a stretchable elastic conductive portion (24), and the lengths of the elastic conductive portions (24) of the plurality of second conductive components (21) are different.

[0086] Optionally, the elastic conductive part (24) has a conductive contact surface (25) and is configured to contact the conductive pin (12) of the first conductive member (11);

[0087] The conductive contact surfaces (25) of the plurality of second conductive components (21) are positioned differently in the insertion direction.

[0088] Optionally, the lengths of the plurality of first conductive components (11) are different; the lengths of the plurality of second conductive components (21) are the same.

[0089] Optionally, the second conductive component (21) includes a conductive socket (22) having a conductive inner wall (23), and the conductive inner walls (23) of the plurality of second conductive components (21) have the same length.

[0090] Optionally, the second conductive component (21) has a conductive contact surface (25) and is configured to contact the conductive pin (12) of the first conductive component (11);

[0091] The conductive contact surfaces (25) of the plurality of second conductive components (21) are in the same position in the insertion direction.

[0092] Optionally, the conductive sockets (22) of the plurality of second conductive components (21) have different inner diameters.

[0093] Optionally, the lengths of the plurality of second conductive components (21) are different; the lengths of the plurality of first conductive components (11) are different.

[0094] Optionally, the second conductive component (21) includes a stretchable elastic conductive portion (24);

[0095] The elastic conductive portions (24) of the plurality of second conductive components (21) have different lengths.

[0096] Optionally, the plurality of first conductive components (11) are divided into multi-level first conductive component groups (31), and the plurality of second conductive components (21) are divided into multi-level second conductive component groups (32);

[0097] Among them, the first conductive component group (31) and the second conductive component group (32) of the same level are electrically connected at the same time, while the first conductive component group (31) and the second conductive component group (32) of different levels are electrically connected at different times.

[0098] Optionally, the multi-level second conductive component group (32) includes: a first-level second conductive component group (321), a second-level second conductive component group (322), and a third-level second conductive component group (323) ordered from high to low priority;

[0099] Among them, the higher the priority, the earlier the electrical connection time.

[0100] Optionally, the second conductive components (21) in the multi-level second conductive component group (32) have the same length;

[0101] In the multi-level first conductive component group (31), the first conductive component (11) with higher priority has a longer length, and the first conductive components (11) of the same level have the same length.

[0102] Optionally, in the multi-level second conductive component group (32), the second conductive component (21) with higher priority has a longer length, and the second conductive components (21) of the same level have the same length.

[0103] Optionally, in the multi-level second conductive component group (32), the second conductive component (21) with higher priority has a longer length, and the second conductive components (21) of the same level have the same length.

[0104] Thirdly, this application provides a power module (6) connected to a first plug-in component (10) as described in any of the first aspects, or a second plug-in component (20) as described in any of the second aspects.

[0105] Fourthly, this application provides a battery module (5) connected to a second plug-in component (20) as described in any of the second aspects, or a first plug-in component (10) as described in any of the first aspects.

[0106] Optionally, the battery module (5) includes:

[0107] Battery module (51), second low-voltage power component (17) connected to second plug-in component (20);

[0108] The battery management module (52) is connected to the second signal component (19) and the second high-voltage power component (18) of the second plug-in component (20).

[0109] Fifthly, this application provides a battery pack (7) comprising: a power module (6) as described in the third aspect, and a battery module (5) as described in any of the fourth aspects;

[0110] The power module (6) and the battery module (5) are connected via a first plug-in component (10) and a second plug-in component (20).

[0111] Optionally, the battery pack (7) has a high-voltage power supply terminal (71);

[0112] The high-voltage power supply terminal (71) is connected to the power module (6) / battery module (5) via a high-voltage bus, and is used to output the voltage output by the power module (6); wherein, the battery module (5) is connected to the output terminal of the power module (6) via a first high-voltage power component (38) and a second high-voltage power component (18).

[0113] Optionally, the battery module (5) includes a relay (53) connected between the high-voltage power supply terminal (71) and the high-voltage bus.

[0114] The first conductive component (11) includes a second safety detection component (40); the second conductive component (21) includes a first safety detection component (30); after the first plug-in component (10) and the second plug-in component (20) are plugged in, the first safety detection component (30) and the second safety detection component (40) form a power-on circuit to turn on the relay (53).

[0115] Optionally, the first security detection component (30) includes: a first sub-security detection component (332) and a second sub-security detection component (333);

[0116] The first control module (54) of the relay (53) is connected in series between the first sub-safety detection component (332) and the second sub-safety detection component (333), and the switching module of the relay (53) is connected in series between the high-voltage power supply terminal (71) and the high-voltage bus.

[0117] The switching module of the relay (53) switches to on or off in response to whether the first control module (54) of the relay (53) is energized.

[0118] Optionally, the second security detection component (331) includes a third sub-security detection component (334) and a fourth sub-security detection component (335) that are electrically connected; the third sub-security detection component (334) corresponds to the first sub-security detection component (332), and the fourth sub-security detection component (335) corresponds to the second sub-security detection component (333).

[0119] Optionally, the battery pack (7) has signal terminals (72);

[0120] The signal terminal (72) is connected to the battery module (5) and is used to transmit the communication signal of the battery module (5).

[0121] In a sixth aspect, this application provides a battery system comprising: N power modules (6) as described in the third aspect, N battery modules (5) as described in any one of the fourth aspects, and a high-voltage box (8); wherein N is a positive integer;

[0122] The power module (6) and the corresponding battery module (5) are connected through the first plug-in component (10) and the second plug-in component (20); the battery modules (5) are cascaded and electrically connected; the high voltage box (8) is electrically connected to the last stage battery module (5).

[0123] Optionally, the battery module (5) has a high-voltage power supply terminal (71);

[0124] The high-voltage power supply terminal (71) is connected to the power module (6) via the high-voltage bus, the first high-voltage power component (38), and the second high-voltage power component (18) to output the voltage output by the power module (6).

[0125] Optionally, the battery module (5) includes a relay (53) connected between the high-voltage power supply terminal (71) and the high-voltage bus.

[0126] The first conductive component (11) includes: a second safety detection component (40); the second conductive component (21) includes: a first safety detection component (30); after the first plug-in component (10) and the second plug-in component (20) are plugged in, the first safety detection component (30) and the second safety detection component (40) form a power-conducting circuit to turn on the relay (53);

[0127] The electrical connection time of the first safety detection component (30) and the second safety detection component (40) is later than the electrical connection time of the first power component (35) and the second power component (15).

[0128] Optionally, the first security detection component (30) includes: a first sub-security detection component (332) and a second sub-security detection component (333);

[0129] The first control module (54) of the relay (53) is connected in series between the first sub-safety detection component (332) and the second sub-safety detection component (333), and the switching module of the relay (53) is connected in series between the high-voltage power supply terminal (71) and the high-voltage bus.

[0130] The switching module of the relay (53) switches to on or off in response to whether the first control module (54) of the relay (53) is energized.

[0131] Optionally, the second security detection component (40) includes a third sub-security detection component (334) and a fourth sub-security detection component (335) that are electrically connected; the third sub-security detection component (334) corresponds to the first sub-security detection component (332), and the fourth sub-security detection component (335) corresponds to the second sub-security detection component (333).

[0132] Optionally, the battery module (5) has a signal terminal (72);

[0133] The signal terminal (72) is connected to the battery management module (52) of the battery module (5) and is used to transmit the communication signal of the battery management module (52).

[0134] Optionally, the high-voltage box (8) includes a high-voltage interface (81) and a signal interface (82);

[0135] The high-voltage interface (81) is used to output the superimposed voltage of the N battery modules (5);

[0136] The signal interface (82) is used for data communication with the outside world.

[0137] Optionally, the high-voltage box (8) includes a voltage conversion module (83) and a low-voltage interface (84);

[0138] The voltage conversion module (83) is used to convert the superimposed voltage of the N battery modules (6);

[0139] The low-voltage interface (84) is connected to the voltage conversion module (83) and is used to output the voltage output by the voltage conversion module (83).

[0140] Optionally, the battery modules (5) are stacked, and the high-voltage power supply terminals (71) of adjacent battery modules (5) are electrically connected.

[0141] In a seventh aspect, this application provides an apparatus comprising a battery system and an inverter as described in any of the sixth aspects.

[0142] Eighthly, this application provides an energy storage unit, the energy storage unit (100) comprising:

[0143] Battery module (110);

[0144] And a conversion module (120), which is detachably connected to the battery module (110) and electrically connected to the battery module (110), and the conversion module (120) is used to convert the voltage provided by the battery module (110).

[0145] Optionally, the battery module (110) includes a first plug-in portion (101), and the conversion module (120) includes a second plug-in portion (201), wherein the first plug-in portion (101) and the second plug-in portion (201) are plugged into each other.

[0146] Optionally, the first plug-in portion (101) and the second plug-in portion (201) are hot-plugged.

[0147] Optionally, the first plug-in portion (101) is provided with a first electrical connector (1012), and the second plug-in portion (201) is provided with a second electrical connector (2012). When the first plug-in portion (101) and the second plug-in portion (201) are plugged into each other, the first electrical connector (1012) and the second electrical connector (2012) are electrically connected.

[0148] Optionally, the first plug-in portion (101) includes a first plug-in groove (1011), and the first electrical connector (1012) is disposed in the first plug-in groove (1011). The second plug-in portion (201) includes a second plug-in groove (2011), and the second electrical connector (2012) is disposed in the second plug-in groove (2011).

[0149] Optionally, a sealing element (205) is connected to the first insertion slot (1011) or the second insertion slot (2011), the sealing element (205) being used to seal the first insertion slot (1011) and the second insertion slot (2011).

[0150] Optionally, the battery module (110) includes a target surface (103) and a side surface (104) adjacent to the target surface (103), and the first plug-in portion (101) is connected to either the target surface or the side surface, wherein the target surface is the surface with the largest area of ​​the battery module (110).

[0151] Optionally, the conversion module (120) is provided with a handle (204) on the side away from the second plug-in portion (201).

[0152] Optionally, the battery module (110) is connected to a guide rail (130), and the conversion module (120) is provided with a slider (203), which is slidably connected to the guide rail (130).

[0153] Optionally, the guide rail (130) includes a first connecting part (301), a second connecting part (302), and a third connecting part (303) connected vertically in sequence. The first connecting part (301) is fixedly connected to the battery module (110). The second connecting part (302), the third connecting part (303), and the battery module (110) together define a receiving cavity, and the slider (203) moves within the receiving cavity.

[0154] Optionally, there are two guide rails (130), which are connected to the battery module (110) at intervals.

[0155] Optionally, a limiting member (140) is also included, which is disposed on the side of the guide rail (130) and the slider (203) away from the first insertion part (101). The limiting member (140) is used to fix the slider (203) after the guide rail (130) stops moving, so as to limit the slider (203).

[0156] Optionally, the limiting member (140) includes a first fixing part (401), a second fixing part (402), and a fastener (403). The guide rail (130) extends outward from the side away from the first insertion part (101) to form the first fixing part (401). The slider (203) extends outward from the side away from the first insertion part (101) to form the second fixing part (401). The first fixing part (401) and the second fixing part (402) are superimposed. The fastener (403) passes through the first fixing part (401) and the second fixing part (402) in sequence to fix the slider (203).

[0157] Optionally, the conversion module (120) includes either a DC-DC converter or a DC-AC converter.

[0158] Ninthly, this application provides a conversion module (120) detachably connected to a terminal device and adapted to be electrically connected to the terminal device, the conversion module (120) being used to convert the voltage provided by the terminal device.

[0159] In a tenth aspect, this application provides an energy storage device, the energy storage device comprising: the energy storage unit described in any one of the eighth aspects above.

[0160] Optionally, there are at least two energy storage units (100), which are stacked and distributed, and are electrically connected to each other between two adjacent battery modules (110).

[0161] Optionally, two adjacent battery modules (110) can be detachably connected.

[0162] Optionally, on the end faces of two adjacent battery modules (110) that are in contact with each other, one end face is provided with a third plug-in portion (102), and the other end face is provided with a fourth plug-in portion. The third plug-in portion (102) is provided with a third electrical connector (1022), and the fourth plug-in portion is provided with a fourth electrical connector. When the third plug-in portion (102) and the fourth plug-in portion are plugged into each other, the third electrical connector (1022) and the fourth electrical connector are electrically connected.

[0163] Optionally, the energy storage device further includes a second control module (2), which is connected to the energy storage unit (100) and electrically connected to the battery module (110).

[0164] Optionally, the energy storage device further includes a base (3) connected to the energy storage unit (100);

[0165] And an interlocking component (4), which is connected to the energy storage unit (100) or the base (3).

[0166] The plug-in component, power module, battery module, battery pack, system, device, energy storage unit, conversion module, and energy storage device provided in this application include a first plug-in component comprising multiple first conductive components. During the plug-in process of the first and second plug-in components, the electrical connection times of different first conductive components and their corresponding second conductive components are different. Two modules can be connected through a set of plug-in components to achieve sequential connection of different signals. This first plug-in component integrates multiple conductive components, reducing the installation size occupied on the panel. When connecting two modules, only one set of plug-in components needs to be installed, reducing assembly time. Attached Figure Description

[0167] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0168] Figure 1 is a schematic diagram of a connector structure;

[0169] Figure 2 is a structural schematic diagram of a plug-in component provided in an embodiment of this application;

[0170] Figure 3 is a structural schematic diagram of the second type of plug-in component provided in an embodiment of this application;

[0171] Figure 4 is a structural schematic diagram of the third type of plug-in component provided in the embodiment of this application;

[0172] Figure 5 is a structural schematic diagram of the fourth type of plug-in component provided in the embodiment of this application;

[0173] Figure 6 is a structural schematic diagram of the fifth type of plug-in component provided in the embodiment of this application;

[0174] Figure 7 is a structural schematic diagram of the sixth type of plug-in component provided in the embodiment of this application;

[0175] Figure 8 is a structural schematic diagram of the seventh type of plug-in component provided in the embodiments of this application;

[0176] Figure 9 is a structural schematic diagram of the eighth type of plug-in component provided in the embodiment of this application;

[0177] Figure 10 is a structural schematic diagram of the ninth type of plug-in component provided in the embodiment of this application;

[0178] Figure 11 is a structural schematic diagram of the tenth plug-in component provided in the embodiment of this application;

[0179] Figure 12 is a schematic diagram of a battery pack provided in an embodiment of this application;

[0180] Figure 13 is a schematic diagram of a pre-charge unit;

[0181] Figure 14 is a schematic diagram of the structure of the second type of battery pack provided in the embodiment of this application;

[0182] Figure 15 is a schematic diagram of a pre-charge unit provided in an embodiment of this application;

[0183] Figure 16 is a schematic diagram of another pre-charge unit provided in an embodiment of this application;

[0184] Figure 17 is a structural schematic diagram of the eleventh plug-in component provided in the embodiment of this application;

[0185] Figure 18 is a structural schematic diagram of the twelfth type of plug-in component provided in the embodiment of this application;

[0186] Figure 19 is a schematic diagram of a power module provided in an embodiment of this application;

[0187] Figure 20 is a schematic diagram of the structure of the third type of battery pack provided in the embodiment of this application;

[0188] Figure 21 is a schematic diagram of a battery system provided in an embodiment of this application;

[0189] Figure 22 is a schematic diagram of another battery system provided in an embodiment of this application;

[0190] Figure 23 is one of the structural schematic diagrams of an energy storage unit according to an embodiment of this application;

[0191] Figure 24 is a schematic diagram of the breakdown of an energy storage unit according to an embodiment of this application;

[0192] Figure 25 is a schematic diagram of the structure of a battery module of an energy storage unit according to an embodiment of this application;

[0193] Figure 26 is an exploded view of the structure of a conversion module of an energy storage unit according to an embodiment of this application;

[0194] Figure 27 is an enlarged schematic diagram of the structure at point A shown in Figure 23.

[0195] Figure 28 is a second structural schematic diagram of an energy storage unit according to an embodiment of this application;

[0196] Figure 29 is a third structural schematic diagram of an energy storage unit according to an embodiment of this application;

[0197] Figure 30 is a fourth structural schematic diagram of an energy storage unit according to an embodiment of this application;

[0198] Figure 31 is a fifth schematic diagram of the structure of an energy storage unit according to an embodiment of this application;

[0199] Figure 32 is a schematic diagram of the structure of an energy storage device according to an embodiment of this application.

[0200] Explanation of reference numerals in the attached drawings: 1: Connector; 10: First insertion component; 11: First conductive component; 20: Second insertion component; 21: Second conductive component; 12: Conductive pin; 14: Second pre-charge component; 15: Second power component; 16: Second grounding component; 17: Second low-voltage power component; 18: Second high-voltage power component; 19: Second signal component; 22: Conductive socket; 23: Conductive inner wall; 24: Elastic conductive part; 25: Conductive contact surface; 26: Third sub-low-voltage power component; 27: Fourth sub-low-voltage power component; 30: First safety detection component; 31: Multi-stage first conductive component group; 32: Multi-stage second conductive component group; 311: First-stage first conductive component group; 312: Second-stage first conductive component group; 313 321: First-level conductive component group; 322: Second-level conductive component group; 323: Third-level conductive component group; 332: First sub-safety detection component; 333: Second sub-safety detection component; 334: Third sub-safety detection component; 335: Fourth sub-safety detection component; 34: First pre-charge component; 35: First power component; 36: First grounding component; 37: First low-voltage power component; 38: First high-voltage power component; 39: First signal component; 40: Second safety detection component; 41: First sub-low-voltage power component; 42: Second sub-low-voltage power component; 43: First sub-pre-charge component; 44: Second sub-pre-charge component; 45: First arrival detection component; 46: 47: Second pre-charge detection component; 48: Third pre-charge component; 5: Battery module; 51: Battery module; 52: Battery management module; 53: Relay; 54: First control module; 6: Power module; 61: Pre-charge unit; 62: DC / DC converter; 63: Communication unit; 7: Battery pack; 71: High-voltage power supply terminal; 72: Signal terminal; 8: High-voltage box; 81: High-voltage interface; 82: Signal interface; 83: Voltage conversion module; 84: Low-voltage interface; 9: Base; 100: Energy storage unit; 110: Battery module; 101: First plug-in part; 1011: First plug-in slot; 1012: First electrical connector; 102: Third plug-in part; 1021: Third plug-in 1022: Third electrical connector; 103: Target surface; 104: Side; 120: Conversion module; 201: Second insertion part; 2011: Second insertion slot; 2012: Second electrical connector; 203: Slider; 204: Handle; 205: Seal; 206: Conversion housing; 207: Sealing ring; 208: Circuit board; 209: Heat sink; 2010: Fixing screw; 2001: Back plate; 130: Guide rail; 301: First connecting part; 302: Second connecting part; 303: Third connecting part; 140: Limiting member; 401: First fixing part; 402: Second fixing part; 403: Fastener; 4031: Nut; 4032: Screw; 2: Second control module; 3: Base;4: Interlocking components.

[0201] The accompanying drawings have illustrated specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to specific embodiments. Detailed Implementation

[0202] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0203] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0204] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0205] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0206] With the rapid development of electronic technology, two modules / devices can be connected via connectors to transmit data, power, and other signals. Currently, multiple different connectors are typically used between modules, with each connector establishing a connection sequentially to achieve the sequential connection of different signals between the modules.

[0207] Figure 1 is a schematic diagram of a connector structure. As shown in Figure 1, the battery module and the power module transmit low-voltage electricity through a low-voltage connector, high-voltage electricity through a high-voltage connector, and communication and data exchange through a signal connector. When connecting the battery module and the power module, the installer needs to connect the low-voltage connector, the high-voltage connector, and the signal connector in sequence to establish connections between the different signals of the battery module and the power module in a timely manner.

[0208] This method has the drawbacks of multiple connectors occupying a large panel mounting space, and each connector needs to be installed individually, which increases assembly time.

[0209] In view of this, this application proposes a plug-in component that integrates multiple plug-in components used to connect different signals into a single plug-in component. The integrated plug-in component can be equipped with multiple conductive parts. During the plug-in process, the multiple conductive parts are electrically connected at different times, sequentially establishing different signal connections for the modules. The integrated plug-in component reduces the installation size occupied on the panel; when connecting two modules, only one set of plug-in components needs to be installed, reducing assembly time.

[0210] The following detailed description, using specific embodiments, illustrates how this application performs chronological electrical connections of the plug-in components. These specific embodiments can be combined with each other, and similar or identical concepts or processes may not be repeated in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0211] Figure 2 is a schematic diagram of a plug-in component provided in an embodiment of this application. As shown in Figure 2, the first plug-in component 10 includes a plurality of first conductive components 11.

[0212] The first conductive component 11 can be any electrically connectable component, such as a conductive pin, a conductive socket, or a conductive terminal. When the first conductive component 11 is a conductive pin, the second conductive component 21 can be a conductive socket or a conductive terminal; when the first conductive component 11 is a conductive socket or a conductive terminal, the second conductive component 21 can be a conductive pin. The embodiments of this application do not limit the form of the first conductive component 11.

[0213] Multiple first conductive components 11 correspond to multiple second conductive components 21 of the second plug-in component 20; wherein, during the plug-in process of the first plug-in component 10 and the second plug-in component 20, the electrical connection times of the multiple first conductive components 11 and the corresponding second conductive components 21 are different.

[0214] For example, one first conductive component 11 may be electrically connected to one corresponding second conductive component 21; or, multiple first conductive components 11 may be electrically connected to one corresponding second conductive component 21; or, one first conductive component 11 may be electrically connected to multiple corresponding second conductive components 21; or, multiple first conductive components 11 may be electrically connected to multiple corresponding second conductive components 21. The correspondence between the first conductive component 11 and the second conductive component 21 only indicates the correspondence of their electrical connection relationship. This application does not limit the number of components actually connected to the first conductive component 11 and the second conductive component 21 in its embodiments.

[0215] The first conductive component 11 and the corresponding second conductive component 21 are connected at the same time; different first conductive components 11 and their corresponding second conductive components 21 are connected at different times.

[0216] In summary, the first plug-in component includes multiple first conductive components. During the plug-in process of the first and second plug-in components, the electrical connection times of different first conductive components and their corresponding second conductive components are different. Two modules can be connected through a set of plug-in components to achieve sequential connection of different signals. This first plug-in component integrates multiple conductive components, reducing the installation size occupied on the panel. When connecting two modules, only one set of plug-in components needs to be installed, reducing assembly time.

[0217] This application provides a second plug-in component. Continuing as shown in FIG2, the second plug-in component 20 includes a plurality of second conductive components 21.

[0218] The second conductive component 21 can be any electrically connectable component, such as a conductive pin, a conductive socket, or a conductive terminal. When the second conductive component 21 is a conductive pin, the first conductive component 11 can be a conductive socket or a conductive terminal; when the second conductive component 21 is a conductive socket or a conductive terminal, the first conductive component 11 can be a conductive pin. The embodiments of this application do not limit the form of the second conductive component 21.

[0219] Multiple second conductive components 21 correspond to multiple first conductive components 11 of the first plug-in component 10; wherein, during the plug-in process of the first plug-in component 10 and the second plug-in component 20, the electrical connection times of the multiple first conductive components 11 and the corresponding second conductive components 21 are different.

[0220] For example, one first conductive component 11 may be electrically connected to one corresponding second conductive component 21; or, multiple first conductive components 11 may be electrically connected to one corresponding second conductive component 21; or, one first conductive component 11 may be electrically connected to multiple corresponding second conductive components 21; or, multiple first conductive components 11 may be electrically connected to multiple corresponding second conductive components 21. The correspondence between the first conductive component 11 and the second conductive component 21 only indicates the correspondence of their electrical connection relationship. This application does not limit the number of components actually connected to the first conductive component 11 and the second conductive component 21 in its embodiments.

[0221] The first conductive component 11 and the corresponding second conductive component 21 are connected at the same time; different first conductive components 11 and their corresponding second conductive components 21 are connected at different times.

[0222] In summary, the second connector includes multiple second conductive components. During the insertion process of the first and second connectors, the electrical connection times of different first conductive components and their corresponding second conductive components differ. Two modules can be connected through a single connector to achieve sequential connection of different signals. This first connector integrates multiple conductive components, reducing the installation size on the panel. When connecting two modules, only one connector needs to be installed, reducing assembly time.

[0223] For ease of explanation, the first plug-in component 10 and the second plug-in component 20 can also be referred to as connector 1. That is, connector 1 may include the first plug-in component 10 and the second plug-in component 20.

[0224] Figure 2 is a schematic diagram of the structure of a plug-in component provided in an embodiment of this application. As shown in Figure 2, the connector 1 includes: a first plug-in component 10 and a second plug-in component 20; the first plug-in component 10 includes a plurality of first conductive components 11; the second plug-in component 20 includes a plurality of second conductive components 21.

[0225] The first plug-in component 10 and the second plug-in component 20 can be any component that can be plugged in and out, such as a socket or a plug. Specifically, when the first plug-in component 10 is a socket, the second plug-in component 20 is a plug; when the first plug-in component 10 is a plug, the second plug-in component 20 is a socket. Inserting the plug into the socket indicates that connector 1 is plugged in, and removing the plug from the socket indicates that connector 1 is not plugged in.

[0226] The first conductive component 11 and the second conductive component 21 can be any electrically connected component, such as a conductive pin and a conductive socket, or a conductive pin and a conductive terminal. The first conductive component 11 corresponds to the second conductive component 21. For example, the first plug-in component 10 includes N first conductive components 11, and the second plug-in component 21 includes M second conductive components 21; where N and M are both positive integers, and N and M can be the same value or different values. One first conductive component 11 can be electrically connected to one corresponding second conductive component 21; or, multiple first conductive components 11 can be electrically connected to one corresponding second conductive component 21; or, one first conductive component 11 can be electrically connected to multiple corresponding second conductive components 21; or multiple first conductive components 11 can be electrically connected to multiple corresponding second conductive components 21. The correspondence between the first conductive component 11 and the second conductive component 21 only indicates the correspondence of their electrical connection relationship. This application embodiment does not limit the number of components actually connected to the first conductive component 11 and the second conductive component 21.

[0227] One possible implementation is that the electrical connection positions of the multiple first conductive components 11 and / or multiple second conductive components 21 are different, so that during the insertion process of the first insertion component 10 and the second insertion component 20, the electrical connection times of the multiple first conductive components 11 and their corresponding second conductive components 21 are different. For example, during the insertion process, the first conductive component 11 with the conductive parts of its corresponding second conductive component 21 that are closer to each other are connected first; the first conductive component 11 with the conductive parts of its corresponding second conductive component 21 that are farther apart are connected later, so as to achieve different electrical connection times for the multiple first conductive components 11 and their corresponding second conductive components 21.

[0228] Another possible implementation is that the lengths of the multiple first conductive components 11 and / or the multiple second conductive components 21 are different, so that the electrical connection times of the multiple first conductive components 11 and the corresponding second conductive components 21 are different during the insertion process of the first insertion component 10 and the second insertion component 20. After the first insertion component 10 and the second insertion component 20 have completed insertion, the multiple first conductive components 11 are electrically connected to the corresponding second conductive components 21.

[0229] Continuing as shown in Figure 2, the first conductive component 11 includes first conductive component a1, first conductive component a2, and first conductive component an; the second conductive component 21 includes second conductive component b1, second conductive component b2, and second conductive component bn. First conductive component a1 corresponds to second conductive component b1; first conductive component a2 corresponds to second conductive component b2; and first conductive component an corresponds to second conductive component bn. The electrical connection times of multiple first conductive components 11 and their corresponding second conductive components 21 are different. Specifically, this may include: the electrical connection times of first conductive component a1 and second conductive component b1 being the same; the electrical connection times of first conductive component a2 and second conductive component b2 being the same; and the electrical connection times of first conductive component a3 and second conductive component b3 being the same. The electrical connection times of first conductive component a1 are different from those of first conductive component a2 and first conductive component an.

[0230] It should be understood that the lengths of the plurality of first conductive components 11 and the plurality of second conductive components 21 mentioned in the embodiments of this application refer to the length of the effective electrical connection between the first conductive components 11 and the second conductive components 21.

[0231] It should be understood that the different lengths of the plurality of first conductive components 11 and / or the plurality of second conductive components 21 mentioned in the embodiments of this application refer to the lengths of the plurality of first conductive components 11 and / or the plurality of second conductive components 21 when the first plugging component 10 and the second plugging component 20 are not plugged in. After the first plugging component 10 and the second plugging component 20 are plugged in, the lengths of the plurality of first conductive components 11 and the plurality of second conductive components 21 may be the same or different, and the embodiments of this application do not limit this.

[0232] For example, multiple first conductive components 11 may have different lengths, while multiple second conductive components 21 may have the same length. During the insertion process, the longer first conductive component 11 is electrically connected to the corresponding second conductive component 21 first, and the shorter first conductive component 11 is electrically connected to the corresponding second conductive component 21 later. Alternatively, multiple first conductive components 11 may have the same length, while multiple second conductive components 21 may have different lengths. During the insertion process, the longer second conductive component 21 is electrically connected to the corresponding first conductive component 11 first, and the shorter second conductive component 21 is electrically connected to the corresponding first conductive component 11 later. Alternatively, multiple first conductive components 11 may have different lengths, and multiple second conductive components 21 may have different lengths. The longer first conductive component 11 corresponds to a longer second conductive component 21, and the shorter first conductive component 11 corresponds to a shorter second conductive component 21. During the insertion process, the longer first conductive component 11 is electrically connected to the corresponding second conductive component 21 first, and the shorter first conductive component 11 is electrically connected to the corresponding second conductive component 21 later.

[0233] Continuing as shown in Figure 2, the first conductive component 11 includes first conductive component a1, first conductive component a2, and first conductive component an; the second conductive component 21 includes second conductive component b1, second conductive component b2, and second conductive component bn. First conductive component a1 corresponds to second conductive component b1; first conductive component a2 corresponds to second conductive component b2; and first conductive component an corresponds to second conductive component bn. The electrical connection time of first conductive component a1 is earlier than that of first conductive component a2, and the electrical connection time of first conductive component a2 is earlier than that of first conductive component an. When modules a and b are connected via connector 1, signals that need to be connected first can be connected to conductive components with earlier electrical connection times, for example, through first conductive component a1 and second conductive component b1; signals that need to be connected later can be connected to conductive components with later electrical connection times, for example, through first conductive component a2 and second conductive component b2, etc. Modules a and b can establish multiple signal connections sequentially via connector 1.

[0234] In summary, the connector's first mating component includes multiple first conductive components, and the second mating component includes multiple second conductive components. The lengths of the multiple first conductive components and / or multiple second conductive components are different, so that during the mating process of the first and second mating components, the electrical connection times of the different first conductive components and their corresponding second conductive components are different. Two modules can be connected through a single connector, enabling sequential connection of different signals. This connector integrates multiple conductive components, reducing the installation size on the panel. When connecting two modules, only one connector needs to be installed, reducing assembly time.

[0235] The connector proposed in this application can be used to connect power modules and battery modules, as well as other modules that need to establish electrical connections for multiple signals sequentially. For ease of explanation, this application uses the example of connecting a power module and a battery module as an illustration.

[0236] The structure of the plug-in component will be further explained below based on Figure 2.

[0237] The lengths of the multiple first conductive components 11 and / or the multiple second conductive components 21 are different, so that the electrical connection times of the multiple first conductive components 11 and the second conductive components 21 are different during the insertion process of the first plug-in component 10 and the second plug-in component 20.

[0238] In this embodiment, the multiple first conductive components 11 have the same length, indicating that their ends are aligned when not plugged in; the multiple first conductive components 11 have different lengths, indicating that their ends are not aligned when not plugged in. Similarly, the multiple second conductive components 21 have the same length, indicating that their ends are aligned when not plugged in; the multiple second conductive components 21 have different lengths, indicating that their ends are not aligned when not plugged in. After the first plugging component 10 and the second plugging component 20 are plugged in, the lengths of the multiple first conductive components 11 and the multiple second conductive components 21 may be the same or different, and this embodiment does not limit this.

[0239] Based on the length and structure of the first conductive component 11 and the second conductive component 21, possible implementations of the connector 1 are described.

[0240] (1) The lengths of the multiple first conductive components 11 are the same, and the lengths of the multiple second conductive components 21 are different. That is, in the unconnected state, the ends of the multiple first conductive components 11 are aligned, and the ends of the multiple second conductive components 21 are not aligned.

[0241] Figure 3 is a schematic diagram of the structure of the second type of plug-in component provided in the embodiment of this application. As shown in Figure 3, the plurality of first conductive components 11 include a plurality of conductive pins 12, and the plurality of conductive pins 12 have the same length in the plugging direction.

[0242] The second conductive component 21 includes a conductive socket 22, which has a conductive inner wall 23, and the conductive inner walls 23 of the multiple second conductive components 21 have different lengths.

[0243] The conductive pin 12 can be any conductive pin, such as a round pin, a square pin, or a flat pin. The conductive socket 22 can be any conductive socket, such as a round socket, a square socket, or a flat socket. Optionally, the conductive pin 12 can correspond to the conductive socket 22. For example, when the conductive pin 12 is a round pin, the conductive socket 22 is also a round socket; or, when the conductive pin 12 is a square pin, the conductive socket 22 is also a square socket.

[0244] During the insertion process of the first insertion component 10 and the second insertion component 20, the conductive pin 12 and the conductive socket 22 containing the longer conductive inner wall 23 are electrically connected first, and the conductive pin 12 and the conductive socket 22 containing the shorter conductive inner wall 23 are electrically connected later, thereby achieving different electrical connection times for the multiple first conductive components 11 and the second conductive components 21.

[0245] Continuing with Figure 3, taking conductive pin 12 (including conductive pin a1, conductive pin a2, and conductive pin a3) and conductive socket 22 (including conductive socket b1, conductive socket b2, and conductive socket b3) as an example: Conductive pins a1, a2, and a3 have the same length in the insertion direction. The length of the conductive inner wall 23 of conductive socket b1 is greater than the length of the conductive inner wall of conductive socket b2, and the length of the conductive inner wall of conductive socket b2 is greater than the length of the conductive inner wall of conductive socket b3.

[0246] During the insertion process of the first insertion component 10 and the second insertion component 20, the conductive pin a1 and the conductive socket b1 first come into contact to achieve electrical connection, the conductive pin a2 and the conductive socket b2 then come into contact to achieve electrical connection, and the conductive pin a3 and the conductive socket b3 finally come into contact to achieve electrical connection, thereby achieving different electrical connection times for the multiple first conductive components 11 and the second conductive components 21.

[0247] Figure 4 is a schematic diagram of the structure of the third type of plug-in component provided in the embodiment of this application. As shown in Figure 4, the plurality of first conductive components 11 include a plurality of conductive pins 12, and the plurality of conductive pins 12 have the same length in the plugging direction. The second conductive component 21 includes a retractable elastic conductive portion 24, and the elastic conductive portions 24 of the plurality of second conductive components 21 have different lengths in the unplugged state.

[0248] The elastic conductive part 24 can be any stretchable conductive component, such as an elastic contact or an elastic conductive sheet. The elastic conductive part 24 has a conductive contact surface 25, which is configured to abut against the conductive pin 12; wherein, in the uninserted state, the conductive contact surfaces 25 of the plurality of second conductive components 21 are positioned differently in the insertion direction.

[0249] During the insertion process of the first insertion component 10 and the second insertion component 20, the conductive pin 12 and the conductive contact surface 25 located at the front are electrically connected first, and the conductive pin 12 and the conductive contact surface 25 located at the rear are electrically connected later, thereby achieving different electrical connection times for the multiple first conductive components 11 and the second conductive components 21.

[0250] Continuing with Figure 4, taking the conductive pin 12, which includes conductive pin a1, conductive pin a2, and conductive pin a3, and the elastic conductive part 24, which includes elastic conductive part b1, elastic conductive part b2, and elastic conductive part b3, as an example. The conductive pins a1, a2, and a3 have the same length in the insertion direction. The conductive contact surface of the elastic conductive part b1 is positioned forward, the conductive contact surface of the elastic conductive part b2 is positioned in the center, and the conductive contact surface of the elastic conductive part b3 is positioned backward.

[0251] During the insertion process of the first insertion component 10 and the second insertion component 20, the conductive pin a1 and the elastic conductive part b1 first contact to achieve electrical connection; under the action of insertion pressure, the elastic conductive part b1 contracts, and when the conductive contact surface 25 of the elastic conductive part b1 contracts to the same position as the conductive contact surface 25 of the elastic conductive part b2, the conductive pin a2 and the elastic conductive part b2 contact to achieve electrical connection; under the action of insertion pressure, the elastic conductive parts b1 and b2 contract, and when the conductive contact surfaces 25 of the elastic conductive parts b1 and b2 contracts to the same position as the conductive contact surface 25 of the elastic conductive part b3, the conductive pin a3 and the elastic conductive part b3 contact to achieve electrical connection. Thus, the electrical connection times of the multiple first conductive components 11 and the second conductive components 21 are different.

[0252] (2) The lengths of the multiple second conductive components 21 are the same, while the lengths of the multiple first conductive components 11 are different. That is, in the unconnected state, the ends of the multiple second conductive components 21 are aligned in the connection direction, while the ends of the multiple first conductive components 11 are not aligned in the connection direction.

[0253] Figure 5 is a schematic diagram of the structure of the fourth type of plug-in component provided in this application embodiment. As shown in Figure 5, the plurality of first conductive components 11 include a plurality of conductive pins 12, which are configured to make electrical contact with the second conductive component 21. The conductive pins 12 of the plurality of first conductive components 11 have different lengths in the plugging direction.

[0254] The second conductive component 21 includes a conductive socket 22, which has a conductive inner wall 23, and the conductive inner walls 23 of the plurality of second conductive components 21 have the same length.

[0255] During the insertion process of the first insertion component 10 and the second insertion component 20, the longer conductive pin 12 and the conductive socket 22 are electrically connected first, and the shorter conductive pin 12 and the conductive socket 22 are electrically connected later, thereby achieving different electrical connection times for the multiple first conductive components 11 and the second conductive components 21.

[0256] Continuing with Figure 5, taking conductive pin 12 (including conductive pin a1, conductive pin a2, and conductive pin a3) and conductive socket 22 (including conductive socket b1, conductive socket b2, and conductive socket b3) as an example: The length of conductive pin a1 in the insertion direction is greater than the length of conductive pin a2, and the length of conductive socket a2 in the insertion direction is greater than the length of conductive pin a3. The conductive inner wall lengths of conductive sockets b1, b2, and b3 are the same.

[0257] During the insertion process of the first insertion component 10 and the second insertion component 20, conductive pin a1 and conductive socket b1 first contact to achieve electrical connection, conductive pin a2 and conductive socket b2 then contact to achieve electrical connection, and conductive pin a3 and conductive socket b3 finally contact to achieve electrical connection. This results in different electrical connection times for the multiple first conductive components 11 and second conductive components 21. After the insertion of the first insertion component 10 and the second insertion component 20 is completed, the ends of conductive pins a1, a2, and a3 are positioned differently in the insertion direction.

[0258] Figure 6 is a schematic diagram of the structure of the fifth type of plug-in component provided in this application embodiment. As shown in Figure 6, the plurality of first conductive components 11 include a plurality of conductive pins 12, which are configured to make electrical contact with the second conductive component 21. The conductive pins 12 of the plurality of first conductive components 11 have different lengths in the plugging direction.

[0259] The second conductive member 21 includes a retractable elastic conductive portion 24, and the elastic conductive portions 24 of the plurality of second conductive members 21 are of the same length. The second conductive member 21 has a conductive abutment surface 25 and is configured to abut against the conductive pin 12; wherein the conductive abutment surfaces 25 of the plurality of second conductive members 21 are positioned at the same position in the insertion direction.

[0260] During the insertion process of the first insertion component 10 and the second insertion component 20, the longer conductive pin 12 and the elastic conductive part 24 are electrically connected first, and the shorter conductive pin 12 and the elastic conductive part 24 are electrically connected later, thereby achieving different electrical connection times for the multiple first conductive components 11 and the second conductive components 21.

[0261] Continuing with Figure 6, taking the conductive pin 12, which includes conductive pin a1, conductive pin a2, and conductive pin a3, and the elastic conductive part 24, which includes elastic conductive part b1, elastic conductive part b2, and elastic conductive part b3, as an example: The length of conductive pin a1 is greater than the length of conductive pin a2, and the length of conductive pin a2 is greater than the length of conductive pin a3. The lengths of elastic conductive parts b1, b2, and b3 are the same.

[0262] During the insertion process of the first insertion component 10 and the second insertion component 20, the conductive pin a1 and the elastic conductive part b1 first contact to achieve electrical connection; the elastic conductive part b1 contracts under the action of insertion pressure, and when the conductive pin a2 reaches the conductive contact surface 25 of the elastic conductive part b2, the conductive pin a2 and the elastic conductive part b2 contact to achieve electrical connection; the elastic conductive parts b1 and b2 contract under the action of insertion pressure, and when the conductive pin a3 reaches the conductive contact surface 25 of the elastic conductive part b3, the conductive pin a3 and the elastic conductive part b3 contact to achieve electrical connection. Thus, the electrical connection times of the multiple first conductive components 11 and the second conductive components 21 are different.

[0263] Figure 7 is a schematic diagram of the sixth type of plug-in component provided in this application embodiment. As shown in Figure 7, the plurality of first conductive components 11 include a plurality of conductive pins 12, which are configured to make electrical contact with the second conductive component 21. The conductive pins 12 of the plurality of first conductive components 11 are retractable structures, and the lengths of the conductive pins 12 of the plurality of first conductive components 11 are different in the plugging direction.

[0264] The second conductive component 21 includes a conductive socket 22, which has a conductive inner wall 23, and the conductive inner walls 23 of the plurality of second conductive components 21 have the same length.

[0265] During the insertion process of the first insertion component 10 and the second insertion component 20, the longer conductive pin 12 and the conductive socket 22 are electrically connected first, and the shorter conductive pin 12 and the conductive socket 22 are electrically connected later, thereby achieving different electrical connection times for the multiple first conductive components 11 and the second conductive components 21.

[0266] Continuing with Figure 7, taking conductive pin 12 (including conductive pin a1, conductive pin a2, and conductive pin a3) and conductive socket 22 (including conductive socket b1, conductive socket b2, and conductive socket b3) as an example: Conductive pins a1, a2, and a3 are retractable conductive pins, and the length of conductive pin a1 is greater than the length of conductive pin a2, while the length of conductive socket a2 is greater than the length of conductive pin a3. The conductive inner wall lengths of conductive sockets b1, b2, and b3 are the same.

[0267] During the insertion process of the first insertion component 10 and the second insertion component 20, the conductive pin a1 and the conductive socket b1 first contact to achieve electrical connection. Under the action of insertion pressure, the conductive pin a1 retracts, and then the conductive pin a2 and the conductive socket b2 contact to achieve electrical connection. Under the action of insertion pressure, the conductive pin a1 and the conductive socket b2 retract, and finally the conductive pin a3 and the conductive socket b3 contact to achieve electrical connection. Thus, the electrical connection times of the multiple first conductive components 11 and the second conductive components 21 are different.

[0268] Figure 8 is a schematic diagram of the structure of the seventh type of plug-in component provided in the embodiments of this application. As shown in Figure 8, the plurality of first conductive components 11 include a plurality of conductive pins 12, which are configured to make electrical contact with the second conductive component 21. The conductive pins 12 of the plurality of first conductive components 11 are telescopic structures, and the lengths of the conductive pins 12 of the plurality of first conductive components 11 are different.

[0269] The second conductive component 21 has a conductive contact surface 25 and is configured to contact the conductive pin 12; wherein the conductive contact surfaces 25 of the plurality of second conductive components 21 are in the same position in the insertion direction.

[0270] During the insertion process of the first insertion component 10 and the second insertion component 20, the longer conductive pin 12 and the conductive contact surface 25 are electrically connected first, and the shorter conductive pin 12 and the conductive contact surface 25 are electrically connected later, thereby achieving different electrical connection times for the multiple first conductive components 11 and the second conductive components 21.

[0271] Continuing with Figure 8, taking the conductive pins 12 (including conductive pins a1, a2, and a3) and the conductive contact surface 25 (including conductive contact surface b1, b2, and b3) as an example, the conductive pins a1, a2, and a3 are retractable conductive pins. The length of conductive pin a1 is greater than the length of conductive pin a2, and the length of conductive contact surface a2 is greater than the length of conductive pin a3. The conductive contact surfaces b1, b2, and b3 are positioned in the same direction during insertion.

[0272] During the insertion process of the first insertion component 10 and the second insertion component 20, the conductive pin a1 and the conductive abutment surface b1 first contact to achieve electrical connection. Under the action of insertion pressure, the conductive pin a1 retracts, and then the conductive pin a2 and the conductive abutment surface b2 contact to achieve electrical connection. Under the action of insertion pressure, the conductive pin a1 and the conductive abutment surface b3 finally contact to achieve electrical connection. Thus, the electrical connection times of the multiple first conductive components 11 and the second conductive components 21 are different.

[0273] (3) The lengths of the multiple second conductive components 21 are different, and the lengths of the multiple first conductive components 11 are different. That is, in the unconnected state, the ends of the multiple second conductive components 21 are not aligned in the connection direction, and the ends of the multiple first conductive components 11 are not aligned in the connection direction.

[0274] Figure 9 is a structural schematic diagram of the eighth type of plug-in component provided in the embodiment of this application. As shown in Figure 9, the first conductive component 11 includes a retractable conductive pin 12, which is configured to make electrical contact with the second conductive component 21; the conductive pins 12 of the plurality of first conductive components 11 have different lengths in the plugging direction.

[0275] The second conductive component 21 includes a retractable elastic conductive portion 24; the elastic conductive portions 24 of the plurality of second conductive components 21 have different lengths; the second conductive component 21 has a conductive contact surface 25 and is configured to contact the conductive pin 12; wherein the conductive contact surfaces 25 of the plurality of second conductive components 21 are positioned differently in the insertion direction.

[0276] During the insertion process of the first insertion component 10 and the second insertion component 20, the longer conductive pin 12 and the forward conductive contact surface 25 are electrically connected first, and the shorter conductive pin 12 and the rear conductive contact surface 25 are electrically connected later, thereby achieving different electrical connection times for the multiple first conductive components 11 and the second conductive components 21.

[0277] Continuing with Figure 9, taking the conductive pin 12, which includes conductive pin a1, conductive pin a2, and conductive pin a3, and the elastic conductive part 24, which includes elastic conductive part b1, elastic conductive part b2, and elastic conductive part b3, as an example. Conductive pins a1, a2, and a3 are retractable conductive pins, and the length of conductive pin a1 is greater than the length of conductive pin a2, while the length of conductive socket a2 is greater than the length of conductive pin a3. The conductive contact surface 25 of elastic conductive part b1 is positioned forward in the insertion direction, the conductive contact surface 25 of elastic conductive part b2 is positioned in the center in the insertion direction, and the conductive contact surface 25 of elastic conductive part b3 is positioned backward in the insertion direction.

[0278] During the insertion process of the first insertion component 10 and the second insertion component 20, the conductive pin a1 and the elastic conductive part b1 first come into contact to achieve electrical connection; under the action of insertion pressure, the elastic conductive part b1 and the conductive pin a1 contract, and the conductive pin a2 and the elastic conductive part b2 come into contact to achieve electrical connection; under the action of insertion pressure, the elastic conductive part b1, the conductive pin a1, the elastic conductive part b2, and the conductive pin a2 contract, and the conductive pin a3 and the elastic conductive part b3 come into contact to achieve electrical connection. Thus, the electrical connection times of the multiple first conductive components 11 and the second conductive components 21 are different.

[0279] The possible implementations of connector 1 have been described above based on the length and structure of the first conductive component 11 and the second conductive component 21. Furthermore, the structures of the multiple first conductive components 11 can be the same or different. For example, the cross-sectional dimensions of the conductive pins 12 of the multiple first conductive components 11 can be different. The larger the cross-sectional dimension of the conductive pins 12 of the first conductive component 11, the greater the current value that the first conductive component 11 can carry. In specific implementations, this can be set according to actual needs, making the implementation of the first conductive component 11 more flexible.

[0280] The inner diameter of the conductive sockets 22 of the multiple second conductive components 21 can also be different, and can be matched with the cross-sectional dimensions of the first conductive component 11, thereby enabling a stable electrical connection between the first conductive component 11 and the second conductive component 21. Specifically, it can be set according to the cross-section of the conductive pin of the first conductive component 11.

[0281] It should be understood that the first conductive component 11 may include one or more conductive pins 12. By connecting multiple conductive pins 12 in parallel, they can jointly bear the current load on the conductive pins, thereby supporting the first conductive component 11 to carry a larger current. Correspondingly, the second conductive component 21 may also include one or more conductive sockets 22, with each conductive pin 12 corresponding to a conductive socket 22. The embodiments of this application do not limit this, and the specific configuration can be made according to actual conditions.

[0282] Figure 10 is a structural schematic diagram of the ninth type of plug-in component provided in the embodiment of this application. As shown in Figure 10, the plurality of first conductive components 11 can be divided into multi-level first conductive component groups 31, and the plurality of second conductive components 21 can be divided into multi-level second conductive component groups 32;

[0283] Among them, the electrical connection time of the first conductive component group 31 and the second conductive component group 32 of the same level is the same, while the electrical connection time of the first conductive component group 31 and the second conductive component group 32 of different levels is different.

[0284] Continuing with Figure 10, as an example, the multiple first conductive components 11 can be divided into a first-level first conductive component group C1 and an n-level first conductive component group Cn, and the multiple second conductive components 21 can be divided into a first-level second conductive component group D1 and an n-level second conductive component group Dn. The electrical connection times of the different levels of first conductive component groups 31 and second conductive component groups 32 are different. Specifically, during the insertion process of the first insertion component 10 and the second insertion component 20, the electrical connection times of the first-level first conductive component group C1 and the first-level second conductive component group D1 are the same; the electrical connection times of the n-level first conductive component group Cn and the n-level second conductive component group Dn are the same. The electrical connection times of the first-level first conductive component group C1 and the n-level first conductive component group Cn are different.

[0285] For example, the first plug-in component 10 includes n-level first conductive component groups 31, and the second plug-in component 20 also includes n-level second conductive component groups 32. Each level of the first conductive component group 31 may include multiple first conductive components 11, and each level of the second conductive component group 32 may include multiple second conductive components 21; the first conductive components 11 and the second conductive components 21 correspond to each other.

[0286] During the insertion process, the electrical connection times of multiple first conductive components 11 in the same first conductive component group 31 and the second conductive components 21 in the same second conductive component group 32 are the same, while the electrical connection times of multiple first conductive components 11 in different first conductive component groups 31 and multiple second conductive components 21 in different second conductive component groups 32 are different.

[0287] Continuing as shown in Figure 10, as an example, the multiple first conductive components 11 can be divided into a first-level first conductive component group C1 and an n-level first conductive component group Cn, and the multiple second conductive components 21 can be divided into a first-level second conductive component group D1 and an n-level second conductive component group Dn; the first-level first conductive component group C1 includes: first conductive component a1-first conductive component ak, the n-level first conductive component group Cn includes: first conductive component am-first conductive component an; the first-level second conductive component group D1 includes: second conductive component b1-second conductive component bk, the n-level second conductive component group Dn includes: second conductive component bm-second conductive component bn. The electrical connection times of the first-level first conductive component group C1 and the first-level second conductive component group D1 are the same, indicating that the electrical connection times of the first conductive component a1-first conductive component ak and the corresponding second conductive component b1-second conductive component bk are all the same. The electrical connection times of the n-level first conductive component group Cn and the n-level second conductive component group Dn are the same, indicating that the electrical connection times of the first conductive component am-first conductive component an and the corresponding second conductive component bm-second conductive component bn are all the same. The electrical connection times of the first-level first conductive component group C1 and the n-level second conductive component group Dn are different, indicating that the electrical connection times of (first conductive component a1-first conductive component ak and the corresponding second conductive component b1-second conductive component bk) are different from the electrical connection times of (first conductive component am-first conductive component an and the corresponding second conductive component bm-second conductive component bn).

[0288] Figure 11 is a structural schematic diagram of the tenth type of plug-in component provided in the embodiment of this application. As shown in Figure 11, the multi-level first conductive component group 31 includes: a first-level first conductive component group 311, a second-level first conductive component group 312, and a third-level first conductive component group 313, ordered from high to low priority; the multi-level second conductive component group 32 includes: a first-level second conductive component group 321, a second-level second conductive component group 322, and a third-level second conductive component group 323, ordered from high to low priority; wherein, the higher the priority, the earlier the electrical connection time.

[0289] One possible implementation: In the multi-level first conductive component group 31, the first conductive component 11 with higher priority has a longer length, and the first conductive components 11 of the same level have the same length; the conductive components in the multi-level second conductive component group 32 have the same length.

[0290] For example, in the unconnected state, the length of the first conductive component 11 of the first-level first conductive component group 311 is greater than the length of the first conductive component 11 of the second-level first conductive component group 312, and the length of the first conductive component 11 of the second-level first conductive component group 312 is greater than the length of the first conductive component 11 of the third-level first conductive component group 313; the lengths of the first conductive components 11 of the first-level first conductive component group 311, the second-level first conductive component group 312, and the third-level first conductive component group 313 are the same; the lengths of the second conductive components 21 of the first-level second conductive component group 321, the second-level second conductive component group 322, and the third-level second conductive component group 323 are the same.

[0291] Another possible implementation is that in the multi-level second conductive component group 32, the second conductive component 21 with higher priority has a longer length, and the second conductive components 21 of the same level have the same length; the conductive components in the multi-level first conductive component group 31 have the same length.

[0292] For example, in the unconnected state, the length of the second conductive component 21 of the first-level second conductive component group 321 is greater than the length of the second conductive component 21 of the second-level second conductive component group 322, and the length of the second conductive component 21 of the second-level second conductive component group 322 is greater than the length of the second conductive component 21 of the third-level second conductive component group 323; the lengths of the second conductive components 21 of the first-level second conductive component group 321, the second conductive component 21 of the second-level second conductive component group 322, and the third conductive component 21 of the third-level second conductive component group 323 are the same; the lengths of the first conductive component 11 of the first-level first conductive component group 311, the second conductive component 11 of the second-level first conductive component group 312, and the third conductive component 11 of the third-level first conductive component group 313 are all the same.

[0293] In the third possible implementation, in the multi-level first conductive component group 31, the first conductive component 11 with higher priority has a longer length, and the first conductive components 11 of the same level have the same length; in the multi-level second conductive component group 32, the second conductive component 21 with higher priority has a longer length, and the second conductive components 21 of the same level have the same length.

[0294] For example, in the unconnected state, the length of the first conductive component 11 of the first-level first conductive component group 311 is greater than the length of the first conductive component 11 of the second-level first conductive component group 312, and the length of the first conductive component 11 of the second-level first conductive component group 312 is greater than the length of the first conductive component 11 of the third-level first conductive component group 313; the lengths of the first conductive components 11 of the first-level first conductive component group 311, the second-level first conductive component group 312, and the third-level first conductive component group 313 are the same; the length of the second conductive component 21 of the first-level second conductive component group 321 is greater than the length of the second conductive component 21 of the second-level second conductive component group 322, and the length of the second conductive component 21 of the second-level second conductive component group 322 is greater than the length of the second conductive component 21 of the third-level second conductive component group 323; the lengths of the second conductive component 21 of the first-level second conductive component group 321, the second-level second conductive component group 322, and the third-level second conductive component group 323 are the same.

[0295] During the insertion process of connector 1, the electrical connection time of the first-level first conductive component group 311 and the first-level second conductive component group 321 is earlier than the electrical connection time of the second-level first conductive component group 312 and the second-level second conductive component group 322. The electrical connection time of the second-level first conductive component group 312 and the second-level second conductive component group 322 is earlier than the electrical connection time of the third-level first conductive component group 313 and the third-level second conductive component group 323. During the insertion process of connector 1, the electrical connection can be divided into three stages according to the time sequence.

[0296] Figure 12 is a schematic diagram of a battery pack according to an embodiment of this application. As shown in Figure 12, the first plug-in component 10 can be installed on the power module 6, and the second plug-in component 20 can be installed on the battery module 5; or, the first plug-in component 10 can be installed on the battery module 5, and the second plug-in component 20 can be installed on the power module 6. Figure 12 illustrates the example of the first plug-in component 10 being installed on the power module 6 and the second plug-in component 20 being installed on the battery module 5.

[0297] Battery module 5 can be any module capable of storing electrical energy, such as a lithium-ion battery module 5, a lithium iron phosphate battery module 5, a nickel-metal hydride battery module 5, a lead-acid battery module 5, etc. Power module 6 can be any module capable of voltage conversion, such as a DC / DC converter, a DC / AC converter, etc. This application embodiment illustrates the example of power module 6 including a DC / DC converter.

[0298] Connector 1 can be a plug-and-play connector, such as a plug or socket. After the battery module 5 and power module 6 are assembled and connected via connector 1, the battery module 5 sends low-voltage electricity to the power module 6 through connector 1. The power module 6 transforms the low-voltage electricity and outputs boosted high-voltage electricity. The battery module 5 and power module 6 communicate and exchange data through connector 1. In case of a fault in the power module 6, the connection of connector 1 can be disconnected to break the connection between the power module 6 and the battery module 5. Afterward, the power module 6 can be removed and replaced.

[0299] It should be understood that the terms "high voltage" and "low voltage" used in the embodiments of this application are relative concepts; that is, low voltage is a voltage that is lower than high voltage. For example, 48V is low voltage, and 220V is high voltage.

[0300] Because the power module 6 has a large capacitor on its low-voltage side, the voltage across the capacitor is zero when it is not charged. When the power module 6 and the battery module 5 are assembled and connected, the battery module 5 will attempt to charge the capacitor, which will cause a large instantaneous current to flow through the connector 1, resulting in arcing in the connector 1 and potentially damaging it.

[0301] To address the potential damage to connector 1 during the assembly and connection of power module 6 and battery module 5, a pre-charge unit is added to the low-voltage side of power module 6. During assembly and connection, battery module 5 can first charge the capacitor of power module 6 through the pre-charge unit, preventing a sudden surge of current across the capacitor and thus avoiding damage to connector 1. Afterward, battery module 5 supplies power to power module 6 through the main power supply circuit.

[0302] Figure 13 is a schematic diagram of a pre-charge unit. As shown in Figure 13, the pre-charge unit 61 includes: a pre-charge group R, a main circuit relay KA, and a pre-charge circuit relay KAR. The main circuit relay KA is connected in series between the positive output terminal B+ of the battery module 5 and the low-voltage positive input terminal P+ of the power module 6. The negative input terminal B- of the battery module 5 is connected to the low-voltage negative input terminal P- of the power module 6. The pre-charge circuit relay KAR and the pre-charge resistor R are connected in series and then in parallel across the main circuit relay KA. The capacitor C of the power module 6 is connected in parallel between the low-voltage positive input terminal P+ and the low-voltage negative input terminal P- of the power module 6. The controller is connected to the control terminal of the main circuit relay KA and the control terminal of the pre-charge circuit relay KAR.

[0303] The main circuit relay KA and the precharge circuit relay KAR can be any relay capable of being turned on or off based on a high-level or low-level signal, such as an electromagnetic relay.

[0304] When battery module 5 is connected to power module 6, the controller turns on the pre-charge circuit relay KAR and turns off the main circuit relay KA. At this time, the pre-charge circuit between the positive output terminal B+ of battery module 5, the pre-charge resistor R, the capacitor C, and the negative output terminal B- of battery module 5 is connected. The pre-charge resistor R limits the current flowing through capacitor C. Battery module 5 charges capacitor C through the pre-charge resistor R, enabling the capacitor to charge smoothly and safely, thus avoiding damage to connector 1 from a sudden large current. After capacitor C has finished charging, the controller turns off the pre-charge circuit relay KAR and turns on the main circuit relay KA to connect the low-voltage main power supply circuit between battery module 5 and power module 6.

[0305] Figure 14 is a schematic diagram of the structure of a second type of battery pack provided in an embodiment of this application. As shown in Figure 14, the second device may include, for example, a pre-charge unit 61, a DC / DC converter 62, and a communication unit 63.

[0306] The pre-charge unit 61 can be any unit that can limit current, such as a resistor, inductor, or other similar components. The DC / DC converter 62 can be a device that transforms the input voltage, such as a boost converter. The communication unit 63 can be any unit capable of communicating with an external source.

[0307] The first-stage first conductive component group 311 includes a first pre-charge component 34; the first-stage second conductive component group 321 includes a second pre-charge component 14. The first pre-charge component 34 and the second pre-charge component 14 are connected to realize the connection between the first device and the pre-charge unit 61 in the second device. Figure 14 illustrates the example with the second device being the power module 6 and the first device being the battery module 5.

[0308] The first pre-charge component 34 and the second pre-charge component 14 can both be any electrically connectable component, such as a conductive pin, a conductive socket, or a conductive terminal. The first pre-charge component 34 and the second pre-charge component 14 can be electrically connected, for example, by plugging them in. When the first pre-charge component 34 is a conductive pin, the second pre-charge component 14 can be a conductive socket or a conductive terminal; when the first pre-charge component 34 is a conductive socket or a conductive terminal, the second pre-charge component 14 can be a conductive pin. The embodiments of this application do not limit the form of the first pre-charge component 34 and the second pre-charge component 14.

[0309] The secondary first conductive component group 312 includes a first power component 35; the secondary second conductive component group 322 includes a second power component 15, and the first power component 35 is connected to the second power component 15 to realize the connection between the DC / DC converter 62 of the battery module 5 and the power module 6.

[0310] The first power component 35 and the second power component 15 can both be any electrically connectable component, such as a conductive pin, a conductive socket, or a conductive terminal. The first power component 35 and the second power component 15 can be electrically connected, for example, by plugging them in. When the first power component 35 is a conductive pin, the second power component 15 can be a conductive socket or a conductive terminal; when the first power component 35 is a conductive socket or a conductive terminal, the second power component 15 can be a conductive pin. The embodiments of this application do not limit the form of the first power component 35 and the second power component 15.

[0311] The first pre-charge component 34 and the second pre-charge component 14 are electrically connected at the same time; the first power component 35 and the second power component 15 are electrically connected at the same time; the electrical connection time of the first pre-charge component 34 is earlier than that of the first power component 35. When the battery module 5 and the power module 6 are assembled and connected, the first pre-charge component 34 and the second pre-charge component 14 are electrically connected first, and the pre-charge circuit of the battery module 5 and the power module 6 is activated. The battery module 5 charges the capacitor in the power module 6 with a small current. Then, the first power component 35 and the second power component 15 are electrically connected, and the main power supply circuit of the battery module 5 and the power module 6 is activated. By using different electrical connection times for the conductive parts of the connectors, different circuits between the battery module 5 and the power module 6 can be established sequentially, thereby avoiding connector damage. This method does not require the use of main relays and pre-charge relays to switch between the pre-charge circuit and the main power supply circuit, making it simple to implement.

[0312] Optionally, the three-level first conductive component group 313 includes a first signal component 39; the three-level second conductive component group 323 includes a second signal component 19, so as to realize the connection between the communication unit 63 of the battery module 5 and the power module 6.

[0313] The first signal component 39 and the second signal component 19 are electrically connected at the same time; the first power component 35 and the second power component 15 are electrically connected at the same time; the electrical connection time of the first signal component 39 is later than the electrical connection time of the first power component 35. When the battery module 5 and the power module 6 are assembled and connected, the first power component 35 and the second power component 15 are electrically connected first, and the first signal component 39 and the second signal component 19 are electrically connected later, thus establishing a communication circuit between the battery module 5 and the power module 6.

[0314] Optionally, the plurality of first conductive components 11 include a first positioning detection component 45; the plurality of second conductive components 21 include a second positioning detection component 46; the first positioning detection component 45 and the second positioning detection component 46 are connected to realize the connection detection between the battery module 5 and the power module 6; wherein, the electrical connection time of the first positioning detection component 45 is later than the electrical connection time of the first power component 35. The electrical connection time of the first positioning detection component 45 and the second positioning detection component 46 is the same; the electrical connection time of the first power component 35 and the second power component 15 is the same; the electrical connection time of the first positioning detection component 45 is later than the electrical connection time of the first power component 35, and when the electrical connection between the first positioning detection component 45 and the second positioning detection component 15 is detected, it indicates that the first power component 35 and the second power component 15 have been connected.

[0315] In one possible implementation, the first positioning detection component 45 may include a first sub-positioning detection component and a second sub-positioning detection component; the first sub-positioning detection component and the second sub-positioning detection component are electrically connected. The second positioning detection component 46 may include a third sub-positioning detection component and a fourth sub-positioning detection component. The third sub-positioning detection component is connected to the first terminal of the battery management module 52, and the fourth sub-positioning detection component is connected to the second terminal of the battery management module 52. The battery management module 52 sends a detection signal through the first terminal and receives an input signal through the second terminal. When the first connector 10 and the second connector 20 are connected, the first sub-positioning detection component and the third sub-positioning detection component are electrically connected; the second sub-positioning detection component and the fourth sub-positioning detection component are electrically connected. The first terminal and the second terminal of the battery management module 52 form a communication loop, and the second terminal of the battery management module 52 can receive the detection signal sent by the first terminal, indicating that the connector connection is complete. When the connection between the first connector 10 and the second connector 20 becomes loose, the connection between the first positioning detection component 45 and the second positioning detection component 46 is broken first, and the second terminal of the battery management module 52 cannot detect the detection signal sent by the first terminal. By setting the first positioning detection component 45 and the second positioning detection component 46, it is possible to detect whether the connection between the first connector 10 and the second connector 20 is reliable.

[0316] Optionally, the first power component 35 includes a first low-voltage power component 37; the second power component 15 includes a second low-voltage power component 17; the first low-voltage power component 37 and the second low-voltage power component 17 are electrically connected; the first low-voltage power component 37 and the second low-voltage power component 17 are used to transmit the voltage output by the battery module 5. The first power component 35 includes a first high-voltage power component 38; the second power component 15 includes a second high-voltage power component 18; the first high-voltage power component 38 and the second high-voltage power component 18 are electrically connected; the first high-voltage power component 38 and the second high-voltage power component 18 are used to transmit the voltage output by the DC / DC converter 62.

[0317] The specific circuit connection of the pre-charge unit 61 of the battery module 5 and the power module 6 in Figure 14 will be described below.

[0318] Figure 15 is a schematic diagram of a pre-charge unit provided in an embodiment of this application. As shown in Figure 15, the first low-voltage power component 37 includes a first sub-low-voltage power component 41 and a second sub-low-voltage power component 42. The second low-voltage power component 17 includes a third sub-low-voltage power component 26 and a fourth sub-low-voltage power component 27.

[0319] The first sub-low voltage power component 41 is connected to the low-voltage first input terminal of the DC / DC converter 62; the second sub-low voltage power component 42 is connected to the low-voltage second input terminal of the DC / DC converter 62; the third sub-low voltage power component 26 is connected to the first output terminal of the battery module 5; and the fourth sub-low voltage power component 27 is connected to the second output terminal of the battery module 5.

[0320] The first pre-charge component 34 includes: a first sub-pre-charge component 43 and a second sub-pre-charge component 44; the second pre-charge component 14 includes: a third sub-pre-charge component 47 and a fourth sub-pre-charge component 48.

[0321] The first sub-precharge component 43 is connected to the first input terminal of the precharge unit 61; the first output terminal of the precharge unit 61 is connected to the low-voltage first input terminal of the DC / DC converter 62; the second sub-precharge component 44 is connected to the second input terminal of the precharge unit 61; the third sub-precharge component 47 is connected to the first output terminal of the battery module 5; the fourth sub-precharge component 48 is connected to the second output terminal of the battery module 5; the second output terminal of the precharge unit 61 is connected to the low-voltage second input terminal of the DC / DC converter 62. One end of the capacitor C is connected to the low-voltage first input terminal of the DC / DC converter 62, and the other end of the capacitor C is connected to the low-voltage second input terminal of the DC / DC converter 62.

[0322] It should be understood that the low-voltage first input terminal of the DC / DC converter 62 can be a positive input terminal P+, the low-voltage second input terminal of the DC / DC converter 62 can be a negative input terminal P-, the first output terminal of the battery module 5 can be a positive output terminal B+, and the second output terminal of the battery module 5 can be a negative output terminal B-; or, the low-voltage first input terminal of the DC / DC converter 62 can be a negative input terminal P-, the low-voltage second input terminal of the DC / DC converter 62 can be a positive input terminal P+, the first output terminal of the battery module 5 can be a negative output terminal B-, and the second output terminal of the battery module 5 can be a positive output terminal B+. Figure 15 illustrates this with an example where the low-voltage first input terminal of the DC / DC converter 62 is a positive input terminal P+, the low-voltage second input terminal of the DC / DC converter 62 is a negative input terminal P-, the first output terminal of the battery module 5 is a positive output terminal B+, and the second output terminal of the battery module 5 is a negative output terminal B-.

[0323] After the first plug-in component 10 and the second plug-in component 20 are plugged in, the first sub-precharge component 43 and the third sub-precharge component 47 are electrically connected; the second sub-precharge component 44 and the fourth sub-precharge component 48 are electrically connected; the first sub-low voltage power component 41 and the third sub-low voltage power component 26 are electrically connected; and the second sub-low voltage power component 42 and the fourth sub-low voltage power component 27 are electrically connected.

[0324] The electrical connection times of the first sub-precharge component 43 and the second sub-precharge component 44 with the corresponding third sub-precharge component 47 and the fourth sub-precharge component 48 are earlier than the electrical connection times of the first sub-low voltage power component 41 and the second low voltage power component 42 with the corresponding third sub-low voltage power component 26 and the fourth sub-low voltage power component 27.

[0325] When battery module 5 is connected to power module 6 via connector 1, firstly, the first sub-pre-charge component 43 and the third sub-pre-charge component 47 are electrically connected, and the second sub-pre-charge component 44 and the fourth sub-pre-charge component 48 are electrically connected, thus establishing a pre-charge circuit between battery module 5, pre-charge unit 61, and DC / DC converter 62. Battery module 5 can charge capacitor C of DC / DC converter 62 through pre-charge unit 61. Afterwards, the first sub-low-voltage power component 41 and the third sub-low-voltage power component 26 are electrically connected, and the second low-voltage power component 42 and the fourth sub-low-voltage power component 27 are electrically connected, establishing a main power supply circuit between battery module 5 and DC / DC converter 62, and battery module 5 outputs low-voltage voltage to DC / DC converter 62.

[0326] Connector 1 first connects the pre-charge circuit, and then connects the main power supply circuit, realizing the pre-charge function of the capacitor from battery module 5 to power module 6. Compared with the implementation of the pre-charge unit shown in Figure 13, relays KAR and KA are saved, simplifying the circuit structure.

[0327] Figure 16 is a schematic diagram of another pre-charge unit provided in an embodiment of this application. As shown in Figure 16, the pre-charge unit includes a resistor R.

[0328] In one possible implementation, one end of resistor R serves as the first input terminal of precharge unit 61, connected to the first sub-precharge component 43; the other end of resistor R serves as the first output terminal of precharge unit 62, connected to the low-voltage first input terminal of DC / DC converter 62. The second input terminal of precharge unit 61 is connected to the second sub-precharge component 44, and the second output terminal of precharge unit 61 is connected to the low-voltage second input terminal of DC / DC converter 62.

[0329] It should be understood that the low-voltage first input terminal of the DC / DC converter 62 can be a positive input terminal P+, and the low-voltage second input terminal of the DC / DC converter 62 can be a negative input terminal P-; or, the low-voltage first input terminal of the DC / DC converter 62 can be a negative input terminal P-, and the low-voltage second input terminal of the DC / DC converter 62 can be a positive input terminal P+. Figure 16 illustrates this with an example where the low-voltage first input terminal of the DC / DC converter 62 is a positive input terminal P+, and the low-voltage second input terminal of the DC / DC converter 62 is a negative input terminal P-.

[0330] In another possible implementation, the resistor R includes resistors R1 and R2. One end of resistor R1 serves as the first input terminal of the precharge unit 61, connected to the first sub-precharge component 43; the other end of resistor R1 serves as the first output terminal of the precharge unit 62, connected to the low-voltage first input terminal of the DC / DC converter 62. One end of resistor R2 serves as the second input terminal of the precharge unit 61, connected to the second sub-precharge component 44; the other end of resistor R2 serves as the second output terminal of the precharge unit 62, connected to the low-voltage second input terminal of the DC / DC converter 62.

[0331] Figure 16 illustrates the following example: one end of resistor R serves as the first input terminal of precharge unit 61, connected to the first sub-precharge component 43; the other end of resistor R serves as the first output terminal of precharge unit 62, connected to the low-voltage positive input terminal P+ of DC / DC converter 62. The second input terminal of precharge unit 61 is connected to the second sub-precharge component 44, and the second output terminal of precharge unit 61 is connected to the low-voltage negative input terminal P- of DC / DC converter 62.

[0332] The first sub-low-voltage power component 41 is connected to the low-voltage positive input terminal P+ of the DC / DC converter 62; the second sub-low-voltage power component 42 is connected to the low-voltage negative input terminal P- of the DC / DC converter 62. The third sub-low-voltage power component 26 is connected to the positive output terminal B+ of the battery module 5; the fourth sub-low-voltage power component 27 is connected to the negative output terminal B- of the battery module 5; the first sub-precharge component 43 is connected to the positive output terminal B+ of the battery module 5 and one end of the resistor R through the third sub-precharge component 47; the other end of the resistor R is connected to the low-voltage positive input terminal P+ of the DC / DC converter 62; the second sub-precharge component 44 is connected to the negative output terminal B- of the battery module 5 through the fourth sub-precharge component 48, and is connected to the low-voltage negative input terminal P- of the DC / DC converter 62 through a connecting wire.

[0333] When battery module 5 is connected to power module 6 via connector insertion components, firstly, the first sub-precharge component 43 and the third sub-precharge component 47 are electrically connected, and the second sub-precharge component 44 and the fourth sub-precharge component 48 are electrically connected, thus establishing a precharge circuit between battery module 5, resistor R, and DC / DC converter 62. Battery module 5 can charge the capacitor of DC / DC converter 62 through resistor R. Afterwards, the first sub-low-voltage power component 41 and the third sub-low-voltage power component 26 are electrically connected, and the second sub-low-voltage power component 42 and the fourth sub-low-voltage power component 27 are electrically connected, establishing a main power supply circuit between battery module 5 and DC / DC converter 62, and battery module 5 outputs low-voltage voltage to DC / DC converter 62.

[0334] The lengths of the first sub-precharge component 43 and the second sub-precharge component 44 of connector 1 are greater than the lengths of the first sub-low voltage power component 41 and the second sub-low voltage power component 42. This allows the precharge circuit to be turned on first when the battery module 5 is connected to the power module 6 through connector 1, charging the capacitor of the power module 6 with a small current, and then turning on the main power supply circuit. This avoids damage to connector 1 due to excessive instantaneous current when the battery module 5 and the power module 6 are connected.

[0335] Furthermore, the power module 6 includes a circuit board; the first connector 10 and the second connector 20 can be soldered onto the circuit board. The circuit board may include, for example, a printed circuit board (PCB), a flexible printed circuit board (FPC), or any of these. For example, the pins of the first connector 10 and the second connector 20 can be PCB solderable, such as PCB pins. The printed circuit board may include solder holes, and the PCB pins of the first connector 10 and the second connector 20 are directly inserted into the solder holes of the printed circuit board, electrically connecting the PCB pins of the pins to the solder holes of the printed circuit board through soldering. Soldering the first connector 10 and the second connector 20 onto the printed circuit board provides reliable electrical and mechanical connections, supporting efficient automated production. Optionally, the first connector 10 and the second connector 20 may also include mounting holes, allowing screws to be used to fix the first connector 10 and the second connector 20 onto the printed circuit board, enhancing stability.

[0336] Furthermore, the first plug-in component 10 / second plug-in component 20 also includes a mounting plate for fixing the first plug-in component 10 / second plug-in component 20 in place. The mounting plate can effectively fix the first plug-in component 10 / second plug-in component 20 and prevent the first plug-in component 10 / second plug-in component 20 from loosening or shifting during use.

[0337] As shown in Figure 14, the power module 6 and battery module 5 have metal casings. These metal casings provide robust mechanical protection, effectively preventing physical damage to the power module 6 and battery module 5.

[0338] The first conductive component group 311 includes a first grounding component 36; the first conductive component groups 321 each include a second grounding component 16. The first grounding component 36 and the second grounding component 16 are connected to connect the outer casing of the power module 6 and the outer casing of the battery module 5; the outer casing of the battery module 5 is grounded. The first grounding component 36 and the second grounding component 16 are electrically connected at the same time; the first power component 35 and the second power component 15 are electrically connected at the same time; the electrical connection time of the first grounding component 36 is earlier than the electrical connection time of the first power component 35. When the battery module 5 and the power module 6 are plugged in, the first grounding component 36 and the second grounding component 16 are electrically connected first, and then the first power component 35 and the second power component 15 are electrically connected. In the event of a leakage problem caused by a fault in the power module 6, the first grounding component 36 and the second grounding component 16 can conduct the current to the ground, reducing the risk of accidental injury to personnel.

[0339] The specific form of connector 1 can be shown in Figures 17 and 18, for example.

[0340] Figure 17 is a structural schematic diagram of the eleventh type of plug-in component provided in this application embodiment. As shown in Figure 17, the first plug-in component 10 of connector 1 may include a connector socket, and the second plug-in component 20 of connector 1 may include a connector plug. The connector socket and connector plug are plugged in and connected. Figure 17(a) is a top view of connector 1, Figure 17(b) is a side view of connector 1, and Figure 17(c) is a bottom view of connector 1. The connector socket is PCB solderable and can be directly soldered onto the printed circuit board of power module 6. The connector plug can be crimped and can be fixed to the battery pack casing using floating screws. The PCB soldering surface of the connector socket may include: fixing hole P1, pin P2, pin P3, pin P4, pin P5, and pin P6. Among them, fixing hole P1 can play a reinforcing role, and screws can pass through fixing hole P1 to fix the connector socket to the printed circuit board.

[0341] Figure 18 is a structural schematic diagram of the twelfth type of plug-in component provided in the embodiment of this application. As shown in Figure 18, the conductive pins 11 on the mating surface of the connector socket may include: conductive pin Q2, conductive pin Q3, conductive pin Q4, conductive pin Q5, and conductive pin Q6. Conductive pin P2 corresponds to conductive pin Q2, conductive pin P3 corresponds to conductive pin Q3, conductive pin P4 corresponds to conductive pin Q4, conductive pin P5 corresponds to conductive pin Q5, and conductive pin P6 corresponds to conductive pin Q6. The pre-charge component 34 is conductive pin Q2; the signal component 39 is conductive pin Q3; the low-voltage power component 37 is conductive pin Q4; the grounding component 36 is conductive pin Q5; and the high-voltage power component 38 is conductive pin Q6. Among them, the lengths of conductive pins Q2 and Q5 are equal, and the lengths of conductive pins Q4 and Q6 are equal. The lengths of conductive pins Q2 and Q5 are greater than the lengths of conductive pins Q4 and Q6, and the lengths of conductive pins Q4 and Q6 are greater than the length of conductive pin Q3.

[0342] Conductive pin Q2 is used to pre-charge the capacitor in power module 6 via battery module 5. Conductive pin Q3 is used for communication between battery module 5 and power module 6. Conductive pin Q4 is used to connect to battery module 5 and transmit the voltage output by battery module 5. Conductive pin Q5 is used to ground power module 6 and battery module 5. Conductive pin Q6 is used to transmit the high-voltage output by the power module.

[0343] Accordingly, the conductive sockets 22 on the mating surface of the connector plug may include: conductive socket U2, conductive socket U3, conductive socket U4, conductive socket U5, and conductive socket U6. The mating surface of the connector plug is not shown in Figure 18.

[0344] When connector sockets and connector plugs are mated, the pin contact sequence consists of three stages:

[0345] Phase 1: The conductive pin Q2 of the connector socket and the conductive socket U2 of the connector plug are electrically connected, and the conductive pin Q5 of the connector socket and the conductive socket U5 of the connector plug are electrically connected.

[0346] Phase 2: The conductive pin Q4 of the connector pin and the conductive socket U4 of the connector plug are electrically connected, and the conductive pin Q6 of the connector socket and the conductive socket U6 of the connector plug are electrically connected.

[0347] Phase 3: The conductive pin Q3 of the connector pin and the conductive socket U3 of the connector plug make contact and connect.

[0348] It should be understood that the conductive pins Q2, Q3, Q4, Q5, and Q6 of the connector socket shown in Figure 18 may each include multiple conductive pins to achieve corresponding functions according to actual needs. The embodiments of this application do not limit the number of conductive pins included in conductive pins Q2, Q3, Q4, Q5, and Q6.

[0349] This application embodiment also provides a power module 6, which is equipped with a first plug-in component 10 and a second plug-in component 20 of a connector 1. Figure 19 is a structural schematic diagram of a power module provided in this application embodiment. As shown in Figure 19, the power module 6 is equipped with the first plug-in component 10 of the connector 1, which can be plugged into a module equipped with the second plug-in component 20 of the connector 1.

[0350] This application embodiment also provides a battery module 5, which is equipped with a second plug-in component 20 / first plug-in component 10 of a connector 1. Continuing as shown in FIG14, the battery module 5 includes: a battery module 51 and a battery management module 52; the battery module 51 can be, for example, a module capable of storing and releasing electrical energy, such as a lithium-ion battery, a nickel-metal hydride battery, or a lead-acid battery. The battery management module 52 can be, for example, a module for monitoring and managing the working status of the battery module.

[0351] Battery module 51 is connected to the second low-voltage power component 17 of the second connector 20. The second low-voltage power component 17 is connected to the first low-voltage power component 37 of the first connector 10. Battery module 51 outputs low-voltage electricity to the outside through the first low-voltage power component 37 and the second low-voltage power component 17. Battery management module 52 is connected to the second signal component 19 and the second high-voltage power component 18 of the second connector 20. The second signal component 19 is connected to the first signal component 39 of the first connector 10; the second high-voltage power component 18 is connected to the first high-voltage power component 38 of the first connector 10. Battery management module 52 communicates and interacts with external devices through the first signal component 39 and the second signal component 19. Battery management module 52 receives high-voltage electricity input from the outside through the first high-voltage power component 38 and the second high-voltage power component 18.

[0352] Figure 20 is a schematic diagram of the structure of a third type of battery pack provided in an embodiment of this application. As shown in Figure 20, the battery pack 7 includes: a power module 6 and a battery module 5; the power module 6 and the battery module 5 are connected by a connector 1.

[0353] The battery pack 7 has a high-voltage power supply terminal 71; the high-voltage power supply terminal 71 is connected to the power module 6 / battery module 5 through a high-voltage bus and is used to output the voltage output by the power module 6.

[0354] In one example, the power module 6 converts the low-voltage electricity input from the battery module 5 into high-voltage electricity via a DC / DC converter 62. The high-voltage output terminal of the DC / DC converter 62 outputs to the battery module 5 through the first high-voltage power component 38 and the second high-voltage power component 18 of the connector. The battery module 5 is connected to the high-voltage bus, and then the high-voltage bus outputs high-voltage electricity to the outside through the high-voltage power supply terminal 71.

[0355] In another example, power module 6 converts the low-voltage electricity input from battery module 5 into high-voltage electricity via DC / DC converter 62. DC / DC converter 62 is connected to a high-voltage bus, which outputs high-voltage electricity through high-voltage power supply terminals.

[0356] Figure 20 illustrates an example where the high-voltage output of the DC / DC converter 62 is output to the battery module 5 via the first high-voltage power component 38 and the second high-voltage power component 18 of the connector 1. The battery module 5 is connected to the high-voltage bus, and then the high-voltage bus outputs high-voltage electricity to the outside through the high-voltage power supply terminal 71.

[0357] Continuing as shown in Figure 20, battery module 5 includes a relay 53 connected between the high-voltage power supply terminal 71 and the high-voltage bus. Relay 53 can be any device that turns on / off under the influence of current, such as an electromagnetic relay. Relay 53 may include a first control module 54 and a switch module S1. The first control module 54 can be a module that generates a magnetic field, such as an electromagnetic coil. The switch module S1 can be any switch that turns on / off under the influence of a magnetic field, such as an armature. By controlling the on / off state of relay 53, the high-voltage bus is enabled to output high-voltage electricity through the high-voltage power supply terminal 71.

[0358] The three-level first conductive component group 313 of connector 1 includes a second safety detection component 40; the three-level second conductive component group 323 includes a first safety detection component 30. After the first plug-in component 10 and the second plug-in component 20 are plugged in, the first safety detection component 30 and the second safety detection component 40 form a power-conducting circuit to activate the relay 53.

[0359] The first safety detection component 30 on the battery module 5 side includes a first sub-safety detection component 332 and a second sub-safety detection component 333. The first control module 54 of the relay 53 is connected in series between the first sub-safety detection component 332 and the second sub-safety detection component 333. The switching module S1 of the relay 53 is connected in series between the high-voltage power supply terminal 71 and the high-voltage busbar. The switching module S1 of the relay 53 switches to on or off in response to whether the first control module 54 of the relay 53 is energized. The first sub-safety detection component 332 and the second sub-safety detection component 333 on the battery module 5 side can form the power supply circuit for the first control module 54 of the relay 53.

[0360] The second safety detection component 40 on the power module 6 side includes an electrically connected third sub-safety detection component 334 and a fourth sub-safety detection component 335; the third sub-safety detection component 334 corresponds to the first sub-safety detection component 332, and the fourth sub-safety detection component 335 corresponds to the second sub-safety detection component 333. The electrically connected third sub-safety detection component 334 and fourth sub-safety detection component 335 on the power module 6 side can activate the power supply circuit of the first control module 54 of the relay 53 when the connector 1 is connected.

[0361] Battery module 5 also includes a power supply module 55 for relay 53. Power supply module 55 can be any module that can provide voltage, such as battery management module 52, controller of DC / DC converter 62, voltage source, current source, etc.

[0362] In one example, the power supply module 55 is connected in series with the first control module 54. In another example, the power supply module 55 is connected in series between the third sub-safety detection component 334 and the fourth sub-safety detection component 335.

[0363] Figure 20 illustrates the power supply module 55 using the battery management module 52 as an example. One end of the first control module 54 is electrically connected to the first sub-safety detection component 332, and the other end of the first control module 54 is electrically connected to one end of the battery management module 52. The other end of the battery management module 52 is electrically connected to the second sub-safety detection component 333. The third sub-safety detection component 334 is electrically connected to the fourth sub-safety detection component 335.

[0364] When battery module 5 and power module 6 are connected via connector 1, the first sub-safety detection component 332 and the third sub-safety detection component 334 are electrically connected, and the second sub-safety detection component 333 and the fourth sub-safety detection component 335 are electrically connected. The circuit between the first control module 54 and the battery management module 52 is connected. The battery management module 52 sends a high-level signal to the first control module 54. Current flows through the first control module 54, which can generate a magnetic field and attract the switching module S1 of the relay 53. The switching module S1 is turned on, and the high-voltage power bus can output high-voltage electricity to the high-voltage power supply terminal 71. When connector 1 between battery module 5 and power module 6 is disconnected, the first sub-safety detection component 332 and the third sub-safety detection component 334 are disconnected, as are the second sub-safety detection component 333 and the fourth sub-safety detection component 335. The circuit between the first control module 54 and the battery management module 52 is broken, and no current flows through the first control module 54, thus no magnetic field is generated. This releases the switch module S1 of relay 53, causing switch module S1 to disconnect, and the high-voltage power bus no longer outputs high-voltage electricity to the high-voltage power supply terminal 71. Through the first safety detection component 30 and the second safety detection component 40, relay 53 can only conduct under the control of battery management module 52 after connector 1 is connected, allowing battery pack 7 to provide external power supply voltage. When connector 1 is loose or power module 6 is manually disassembled, the first safety detection component 30 and the second safety detection component 40 disconnect before the low-voltage and high-voltage power components, improving the safety of battery pack 7 and preventing accidental electric shock to operators.

[0365] Furthermore, the battery pack has a signal terminal 72; the signal terminal 72 is connected to the battery module 5 and is used to transmit communication signals of the battery module 5.

[0366] Figure 21 is a schematic diagram of a battery system provided in an embodiment of this application. As shown in Figure 21, the battery system includes N power modules 6, N battery modules 5, and a high-voltage box 8; where N is a positive integer.

[0367] The high-voltage box 8 can be any device capable of distributing and managing high-voltage electricity. For example, it can be a power distribution unit (PDU).

[0368] The power module 6 is connected to the corresponding battery module 5 through the first plug-in component 10 and the second plug-in component 20; the battery modules 5 are cascaded and electrically connected; the high voltage box 8 is electrically connected to the last stage battery pack 7.

[0369] The battery module 5 has a high-voltage power supply terminal 71; the high-voltage power supply terminal 71 is connected to the power module 6 through the high-voltage bus, the first high-voltage power component 38, and the second high-voltage power component 18, and is used to output the voltage output by the power module 6.

[0370] Continuing as shown in Figure 20, battery module 5 includes a relay 53 connected between the high-voltage power supply terminal 71 and the high-voltage bus. Relay 53 can be any device that turns on / off under the influence of current, such as an electromagnetic relay. Relay 53 may include a first control module 54 and a switch module S1. The first control module 54 can be a module that generates a magnetic field, such as an electromagnetic coil. The switch module S1 can be any switch that turns on / off under the influence of a magnetic field, such as an armature. By controlling the on / off state of relay 53, the high-voltage bus is enabled to output high-voltage electricity through the high-voltage power supply terminal 71.

[0371] The first conductive component 11 includes a second safety detection component 40; the second conductive component 21 includes a first safety detection component 30; after the first plug-in component 10 and the second plug-in component 20 are plugged in, the first safety detection component 30 and the second safety detection component 40 form a power-conducting circuit to activate the relay 53.

[0372] Specifically, the electrical connection of the first safety detection component 30 and the second safety detection component 40 occurs later than the electrical connection of the first power component 35 and the second power component 15. When the connector 1 becomes loose or the power module 6 is manually disassembled, the first safety detection component 30 and the second safety detection component 40 disconnect before the first power component 35 and the second power component 15, which improves the safety of the battery system and prevents accidental electric shock to operators.

[0373] The first security detection component 30 includes: a first sub-security detection component 332 and a second sub-security detection component 333;

[0374] The first control module 54 of relay 53 is connected in series between the first sub-safety detection component 332 and the second sub-safety detection component 333. The switching module of relay 53 is connected in series between the high-voltage power supply terminal 71 and the high-voltage busbar. The switching module S1 of relay 53 switches to conduction or disconnection in response to whether the first control module 54 of relay 53 is energized. The first sub-safety detection component 332 and the second sub-safety detection component 333 can form the power supply circuit of the first control module 54 of relay 53.

[0375] The second safety detection component 40 includes a third sub-safety detection component 334 and a fourth sub-safety detection component 335 that are electrically connected; the third sub-safety detection component 334 corresponds to the first sub-safety detection component 332, and the fourth sub-safety detection component 335 corresponds to the second sub-safety detection component 333. The electrically connected third sub-safety detection component 334 and fourth sub-safety detection component 335 can activate the power supply circuit of the first control module 54 of the relay 53 when the first plug-in component 10 is connected to the second plug-in component 20.

[0376] Battery module 5 also includes a power supply module 55 for relay 53. Power supply module 55 can be any module that can provide voltage, such as battery management module 52, controller of DC / DC converter 62, voltage source, current source, etc.

[0377] In one example, the power supply module 55 is connected in series with the first control module 54. In another example, the power supply module 55 is connected in series between the third sub-safety detection component 334 and the fourth sub-safety detection component 335.

[0378] The battery module 5 has a signal terminal 72; the signal terminal 72 is connected to the battery management module 52 of the battery module 5 and is used to transmit the communication signal of the battery management module 52.

[0379] The high-voltage box 8 includes a high-voltage interface 81 and a signal interface 82; the high-voltage interface 82 can be any interface for connecting a high-voltage electrical system or equipment, such as a three-hole socket, a two-hole socket, a five-hole socket, etc.

[0380] The signal interface 82 can be any interface that can communicate with the outside, such as a Universal Serial Bus (USB) interface, an Ethernet interface, a serial communication interface, etc.

[0381] The high-voltage interface 81 is used to output the superimposed voltage of N battery modules 5; the signal interface 82 is used for data communication with the outside.

[0382] The high-voltage box 8 includes a voltage conversion module 83 and a low-voltage interface 84. The voltage conversion module 83 can be any module capable of converting high voltage to low voltage, such as a DC-DC converter, a switching power supply, or any other such module. The voltage conversion module 83 is used to convert the superimposed voltages of the N battery modules 6; for example, it can convert the voltage to a low voltage required by the user, such as 5V, 12V, or 48V.

[0383] The low-voltage interface 84 is connected to the voltage conversion module 83 and is used to output the voltage output by the voltage conversion module 83.

[0384] Figure 22 is a schematic diagram of another battery system provided in an embodiment of this application. As shown in Figure 22, the battery system includes three power modules 6, three battery modules 5, and a high-voltage box 8. The battery modules 5 are stacked, and the high-voltage power supply terminals 71 of adjacent battery modules 5 are electrically connected.

[0385] The battery system also includes: a base 9; battery modules 5 are stacked on the base 9, and the high-voltage power supply terminals 71 of adjacent battery modules 5 are electrically connected. The base provides a stable support structure for the battery system, preventing it from tilting during use, and can isolate it from the ground or other equipment.

[0386] Optionally, the base 9 may also be equipped with casters 91 to facilitate the movement of the battery system.

[0387] This application also provides a device including a battery system and an inverter.

[0388] This application provides an energy storage unit 100, which is used to provide power to electrical appliances. Specifically, the energy storage unit 100 can also be the battery pack 7 in the aforementioned embodiments, as shown in Figures 12, 14, and 20.

[0389] Referring to Figure 23, one of the structural schematic diagrams of an energy storage unit 100 according to an embodiment of this application is shown. Referring to Figure 24, a split schematic diagram of an energy storage unit 100 according to an embodiment of this application is shown. The energy storage unit 100 includes a battery module 110 for providing voltage; and a conversion module 120, which is detachably connected to and electrically connected to the battery module 110, and is used to convert the voltage provided by the battery module 110. Specifically, the battery module 110 may be the battery module 5 in the aforementioned embodiments, and the conversion module 120 may be the power module 6 in the aforementioned embodiments, as shown in Figures 12 to 16 and Figures 20 to 22.

[0390] Specifically, the battery module 110 is used to output voltage. When the battery module 110 outputs voltage, the output voltage may not match the voltage required by the electrical equipment. The conversion module 120 can convert the output voltage of the battery module 110 into the specific voltage required by the electrical equipment, ensuring the normal operation of the electrical equipment.

[0391] In this embodiment, by detachably connecting the conversion module 120 to the battery module 110, when the conversion module 120 needs to be replaced or repaired, it can be directly removed from the battery module 110 for repair or replacement, reducing the difficulty of maintenance and upkeep of the energy storage device. In addition, separating the conversion module 120 from the battery module 110 to form a compartmentalized structure makes the two compartments relatively independent, thereby reducing the impact of heat exchange caused by the two being in the same compartment on the entire energy storage device and extending the service life of the electronic and electrical components inside the energy storage unit 100.

[0392] In some optional embodiments, the conversion module 120 can be a DC-DC converter or a DC-AC converter. When the conversion module 120 is a DC-DC converter, it can step down or step up the DC voltage provided by the battery module 110, that is, it can convert high-voltage DC to low-voltage DC or low-voltage DC to high-voltage DC before supplying it to the electrical equipment. When the conversion module 120 is a DC-AC converter, it can convert the AC voltage provided by the battery module 110 to DC voltage or vice versa. The specific type of the DC-DC conversion module 120 can be selected according to actual needs, and this application embodiment does not specifically limit it. In practical applications, by setting the conversion module 120, the voltage can be flexibly adjusted to meet the needs of various electrical equipment and enhance the compatibility of the energy storage unit 100.

[0393] Referring to Figure 25, a structural schematic diagram of the battery module 110 of an energy storage unit 100 according to an embodiment of this application is shown; referring to Figure 26, an exploded structural schematic diagram of the conversion module 120 of an energy storage unit 100 according to an embodiment of this application is shown. Optionally, the battery module 110 includes a first plug-in portion 101, and the conversion module 120 includes a second plug-in portion 201, the first plug-in portion 101 and the second plug-in portion 201 being plugged into each other. The first plug-in portion 101 may specifically be the first plug-in component 10 in the aforementioned embodiment, and the second plug-in portion 201 may specifically be the second plug-in component 20 in the aforementioned embodiment; or the first plug-in portion 101 may specifically be the second plug-in component 20 in the aforementioned embodiment, and the second plug-in portion 201 may specifically be the first plug-in component 10 in the aforementioned embodiment, as shown in Figures 2 to 12, Figures 14 to 16, Figure 19 and Figure 20.

[0394] Specifically, the battery module 110 includes a battery housing and a battery pack disposed within the battery housing, the battery pack storing voltage, and a first connector 101 connected to the housing. The conversion module 120 includes a conversion housing 206 and a converter assembly disposed within the conversion housing 206, the converter assembly being used to convert the voltage of the battery module 110, and a second connector 201 connected to the side wall of the conversion housing 206. In practical applications, when connecting the battery module 110 and the conversion module 120, the first connector 101 and the second connector 201 are plugged into each other, allowing the conversion module 120 to be detachably connected to the battery module 110. When repairing or replacing the conversion module 120, only the first connector 101 and the second connector 201 need to be separated. Since plugging is a relatively easy detachable method, it can reduce the difficulty of maintenance and upkeep of the energy storage device.

[0395] Further, as shown in Figure 26, the converter assembly may include: a back plate 2001, a circuit board 208, a sealing ring 207, and heat sinks 209. The back plate 2001 is connected to the conversion housing 206, and the conversion housing 206 and the back plate 2001 enclose a mounting cavity. The circuit board 208 is disposed within the mounting cavity and has various electronic components for converting the voltage of the battery module 110. The sealing ring 207 is disposed between the conversion housing 206 and the back plate 2001 to seal the gap between them and prevent external moisture from entering the interior of the conversion housing 206. The conversion housing 206 is provided with multiple heat sinks 209 spaced apart to reduce the temperature of the conversion module 120 and prevent it from overheating. Furthermore, the conversion housing 206 and the back plate 2001 can be fixedly connected by multiple fixing screws 2010. A cooling fan can also be installed on the conversion housing 206 to further convert the temperature of the module 120.

[0396] In some alternative embodiments, the first plug portion 101 and the second plug portion 201 are hot-plugged together.

[0397] Specifically, hot-swappable connection refers to the provision of multiple pins of varying lengths within both the first connector 101 and the second connector 201. These pins are connected in a different order during insertion and removal from the first and second connectors, with longer pins contacting first and shorter pins contacting later. For example, pre-charge pins are typically longer, while power pins are typically shorter. In practical applications, sudden contact and disconnection of the pins during insertion and removal can trigger an electric arc, which generates electrical sparks that can damage the battery module 110 and the conversion module 120. By enabling hot-swappable connection between the first and second connectors 101 and 201, the different contact order of the pins reduces the generation of electric arcs, lowers the risk of damage to the battery module 110 and the conversion module 120, and extends the service life of the energy storage unit 100.

[0398] Optionally, the first plug-in portion 101 is provided with a first electrical connector 1012, and the second plug-in portion 201 is provided with a second electrical connector 2012. When the first plug-in portion 101 and the second plug-in portion 201 are plugged into each other, the first electrical connector 1012 and the second electrical connector 2012 are electrically connected. Specifically, the first electrical connector 1012 may be the first conductive component 11 in the aforementioned embodiments, and the second electrical connector 2012 may be the second conductive component 21 in the aforementioned embodiments; or, the first electrical connector 1012 may be the second conductive component 21 in the aforementioned embodiments, and the second electrical connector 2012 may be the first conductive component 11 in the aforementioned embodiments, as shown in Figures 2 and 10.

[0399] Specifically, the first plug-in portion 101 is internally provided with a first electrical connector 1012, which is electrically connected to the battery pack disposed inside the battery module 110 housing. The second plug-in portion 201 is internally provided with a second electrical connector 2012, which is electrically connected to the circuit board 208 disposed inside the conversion housing 206. When the first plug-in portion 101 and the second plug-in portion 201 are plugged into each other, the first electrical connector 1012 and the second electrical connector 2012 contact each other, and the first electrical connector 1012 and the second electrical connector 2012 are electrically connected. This allows the battery module 110 and the conversion module 120 to be electrically connected. In practical applications, when connecting the battery module 110 and the conversion module 120, the first plug-in portion 101 and the second plug-in portion 201 are plugged into each other, and the first electrical connector 1012 and the second electrical connector 2012 are electrically connected simultaneously. No additional wiring is required between the battery module and the conversion module 120. Furthermore, when repairing or replacing the conversion module 120, there is no need to connect or disconnect wires between the battery module 110 and the conversion module 120, further reducing the difficulty of maintaining and servicing the energy storage device. Moreover, the first electrical connector 1012 and the second electrical connector 2012 can be pins.

[0400] Optionally, the first plug-in portion 101 includes a first plug-in groove 1011, and a first electrical connector 1012 is disposed in the first plug-in groove 1011. The second plug-in portion 201 includes a second plug-in groove 2011, and a second electrical connector 2012 is disposed in the second plug-in groove 2011.

[0401] Specifically, the first insertion slot 1011 is disposed on the housing of the battery module 110, and the first electrical connector 1012 is disposed in the first insertion slot 1011. The first insertion slot 1011 protects the first electrical connector 1012. The second insertion slot 2011 is disposed on the conversion housing 206 of the conversion module 120, and the second electrical connector 2012 is disposed in the second insertion slot 2011. The second insertion slot 2011 protects the second electrical connector 2012.

[0402] As shown in Figures 24 and 25, the second insertion slot 2011 is an annular insertion structure. The first insertion slot 1011 is adapted to the structure of the annular insertion structure, so that the first insertion slot 1011 can limit the second insertion slot 2011, thereby allowing the second insertion slot 2011 to be inserted into the first insertion slot 1011.

[0403] In other embodiments, the first insertion slot 1011 may be configured as an annular insertion structure, and the second insertion slot 2011 may be adapted to the first insertion slot 1011 and the annular insertion structure, thereby allowing the second insertion slot 2011 to be inserted into the first insertion slot 1011.

[0404] Optionally, a sealing element 205 is connected to the first insertion slot 1011 or the second insertion slot 2011. The sealing element 205 is used to seal the first insertion slot 1011 and the second insertion slot 2011. In practical applications, by providing the sealing element 205 on the first insertion slot 1011 or the second insertion slot 2011, when the first insertion slot 1011 and the second insertion slot 2011 are inserted, the sealing element 205 can seal the gap between the first insertion slot 1011 and the second insertion slot 2011, preventing external moisture from entering the interior of the first insertion slot 1011 and the second insertion slot 2011 through the gap, thereby improving the safety of the energy storage device.

[0405] As shown in Figure 24, in some optional embodiments, the sealing element 205 can be disposed on the outside of the second insertion slot 2011. Specifically, the sealing element 205 can be a sealing ring, which is sleeved on the outside of the second insertion slot 2011. When the second insertion slot 2011 is inserted into the first insertion slot 1011, the sealing ring can fill the gap between the first insertion slot 1011 and the second insertion slot 2011, preventing external moisture from entering the interior of the first insertion slot 1011 and the second insertion slot 2011 through this gap, thereby improving the safety of the energy storage device. Furthermore, since the sealing surface between the conversion modules 120 and between the battery modules 110 is only a plane the size of the circumference of the sealing ring, the sealing surface is small, resulting in high sealing reliability.

[0406] In some alternative embodiments, the seal 205 can be disposed inside the first insertion groove. Specifically, the seal 205 can be a sealing gasket, which can be pasted on the inner wall of the first insertion groove. In this way, when the second insertion groove 2011 is inserted into the first insertion groove 1011, the sealing gasket can also fill the gap between the first insertion groove 1011 and the second insertion groove 2011, thereby achieving a sealing effect.

[0407] Referring to Figures 23, 24 and 28-31, optionally, the battery module 110 includes a target surface 103 and a side surface 104 adjacent to the target surface 103. The first plug-in portion 101 is connected to either the target surface 103 or the side surface 104, wherein the target surface 103 is the surface with the largest area of ​​the battery module 110.

[0408] Specifically, the battery module 110 is rectangular and includes multiple surfaces. The target surface 103 is the surface with the largest area among the multiple surfaces of the battery module 110, and the side surface 104 is one of the surfaces adjacent to the target surface 103. The first plug-in part 101 can be disposed on the target surface 103. In this case, the conversion module 120 is connected to the target surface 103 of the battery module 110. The first plug-in part 101 can also be disposed on the side surface 104, and the conversion module 120 can be connected to the side surface 104 of the battery module 110.

[0409] In specific applications, by setting the first plug-in part 101 on either the target surface 103 or the side surface 104, the installation position of the conversion module 120 can be selected according to actual needs, thereby improving design flexibility.

[0410] As one possible embodiment, as shown in Figures 23-25, the first insertion portion 101 can be disposed on the target surface 103, which is the side with the largest area in the rectangular battery module 110. When the conversion module 120 is connected to the first insertion portion 101, the conversion module 120 is located on the largest surface of the battery module 110. In practical applications, since the target surface 103 has the largest area, the volume of the conversion module 120 can be increased accordingly, thereby increasing the heat dissipation area of ​​the energy storage unit and thus improving the heat dissipation effect of the energy storage unit. Furthermore, the target surface 103 can be the back of the battery module 110, that is, the conversion module 120 is located on the back of the battery module 110, which can improve the aesthetics of the front of the energy storage unit 100.

[0411] Furthermore, on the target surface 103 or side surface 104, the first insertion portion 101 can be disposed on different sides of the target surface 103 or side surface 104, or the second insertion portion 201 can be disposed on different sides of the conversion module 120, so that the insertion and removal directions of the conversion module 120 when it is inserted and removed from the battery module 110 are different. The insertion and removal direction of the conversion module 120 can be set according to actual needs, improving design flexibility. For example, FIG28 shows the first insertion portion 101 disposed on the lower side of the target surface 103, FIG29 shows the first insertion portion 101 disposed on the left side of the target surface 103, FIG30 shows the second insertion portion 201 disposed on the lower side of the conversion module 120, and FIG31 shows the first insertion portion 101 disposed on the lower side of the side surface 104.

[0412] It should be noted that Figures 28-31 are merely examples illustrating different configurations of the first connector 101. This application does not impose specific limitations on the exact location of the first connector 101; it can be selected according to actual needs.

[0413] Optionally, the conversion module 120 is provided with a handle 204 on the side away from the second connector 201.

[0414] Specifically, a handle 204 is fixedly installed on the conversion module 120. The design of the handle 204 makes it easier for technicians to grip and move the conversion module 120 when installing, adjusting its position or performing maintenance, especially in scenarios where regular inspections or quick module replacements are required, thereby improving work efficiency.

[0415] Optionally, the battery module 110 is connected to a guide rail 130, and the conversion module 120 is provided with a slider 203, which is slidably connected to the guide rail 130.

[0416] Specifically, a slide rail is fixedly connected to the battery module 110, and a slider 203 is provided on the conversion module 120. The slider 203 is slidably connected to the guide rail 130. In practical applications, the cooperation between the slide rail and the slider 203 greatly simplifies the installation and disassembly process of each module, eliminating the need for complex tools and allowing for operation by a single person. When maintenance or upgrades to the conversion module 120 are required, the operator simply slides the conversion module 120 out along the guide rail 130, shortening maintenance time, reducing the difficulty of maintenance operations, and improving the overall system availability and response speed.

[0417] Optionally, the guide rail 130 includes a first connecting part 301, a second connecting part 302 and a third connecting part 303 connected vertically in sequence. The first connecting part 301 is fixedly connected to the battery module 110. The second connecting part 302 and the third connecting part 303, together with the battery module 110, define a receiving cavity, and the slider 203 moves within the receiving cavity.

[0418] Referring specifically to Figure 27, the guide rail 130 has a plate-like structure. One side of the plate-like guide rail 130 is bent vertically upward (up and down in Figure 27) to form a first connecting part 301, the middle part is not bent to form a second connecting part 302, and the other side is bent vertically downward to form a third connecting part 303. Thus, the first connecting part 301 is perpendicular to the second connecting part 302, and the second connecting part 302 is perpendicular to the third connecting part 303. The first connecting part 301 is fixedly connected to the battery module 110, so that the guide rail 130 can be fixed to the battery module 110. Thus, the bottom surface of the second connecting part 302 and the side surface 104 of the third connecting part 303 form a receiving cavity. The slider 203 moves in the receiving cavity. The position of the slider 203 is limited by the second connecting part 302 and the third connecting part 303, so that the conversion module 120 can be movably connected to the battery module 110. In this embodiment, the slider 203 is limited by the second connecting part 302 and the third connecting part 303, which makes the structure of the guide rail 130 simpler, and thus makes the structure of the energy storage unit 100 simpler and reduces the cost of the energy storage unit 100.

[0419] Furthermore, the first connecting part 301 can be fixed to the outer casing of the battery module 110 by means of screw fixing, welding or other fixing methods. This application embodiment does not specifically limit this.

[0420] Optionally, there are two guide rails 130, which are connected to the battery module 110 at intervals.

[0421] Specifically, there are two guide rails 130, symmetrically arranged on both sides of the battery module 110 along its axis. Correspondingly, there are also two sliders 203, which move between the two guide rails 130. In this embodiment, the precise positioning and guidance of the guide rails 130 makes the installation and disassembly of the conversion module 120 more intuitive and convenient. Operators can easily align the guide rails 130 and slide the sliders 203 to complete the installation, eliminating the need for complex alignment operations, saving manpower and time costs, and further reducing the maintenance difficulty of the conversion module 120.

[0422] Optionally, a limiting member 140 is also included. The limiting member 140 is disposed on the side of the guide rail 130 and the slider 203 away from the first insertion portion 101. The limiting member 140 is used to fix the slider 203 after it stops moving on the guide rail 130, thereby limiting the slider. In practical applications, the setting of the limiting member 140 ensures that the movement range of the slider 203 on the guide rail 130 is strictly limited, avoiding the potential risk of the slider 203 disengaging from the guide rail 130 and enhancing the safety of the system.

[0423] In some embodiments, the limiting member 140 includes a first fixing part 401, a second fixing part 402, and a fastener 403. The guide rail 130 extends outward from the side away from the first insertion part 101 to form the first fixing part 401, and the slider 203 extends outward from the side away from the first insertion part 101 to form the second fixing part 402. The first fixing part 401 and the second fixing part 402 are superimposed, and the fastener 403 passes through the first fixing part 401 and the second fixing part 402 in sequence to fix the slider 203.

[0424] Specifically, as shown in Figure 27, the first fixing part 401 is disposed on the side of the guide rail 130 away from the first insertion part 101, and extends outward from the guide rail 130 to form the first fixing part 401. The second fixing part 402 is disposed on the side of the slider 203 away from the first insertion part 101, and extends outward from the slider 203 to form the second fixing part 402. The slider 203 moves in the guide rail 130, causing the first fixing part 401 and the second fixing part 402 to overlap. The fastener 403 passes through the first fixing part 401 and the second fixing part 402, thereby fixing the slider 203. In practical applications, the slider 203 is limited by the guide rail 130 and the slider 203 extending outward to form the first fixing part 401 and the second fixing part 402, respectively, thus eliminating the need for additional components, making the structure of the energy storage unit 100 simpler and saving costs. Furthermore, by using fasteners 403 to pass through the first fixing part 401 and the second fixing part 402 to fix the slider 203, the first fixing part 401 and the second fixing part 402 can be disassembled, which improves the ease of connecting or disassembling the first fixing part 401 and the second fixing part 402.

[0425] Furthermore, the fastener 403 can be a nut 4031 and a screw 4032, with the nut 4031 disposed on the second fixing part 402 and the screw 4032 passing through the first fixing part 401 and the second fixing part 402 and connected to the nut 4031.

[0426] In summary, the energy storage unit described in this application embodiment, by detachably connecting the conversion module 120 to the battery module 110, allows for direct removal of the conversion module 120 from the battery module 110 for replacement or repair when necessary. This reduces the difficulty of maintaining and servicing the energy storage device. Furthermore, separating the conversion module 120 from the battery module 110 to form a compartmentalized structure makes the two compartments relatively independent, thereby reducing the impact of heat exchange caused by the two being in the same compartment on the entire energy storage device and extending the service life of the various electronic and electrical components inside the energy storage unit 100.

[0427] This application embodiment also provides a conversion module 120, which is detachably connected to the terminal device and is suitable for electrical connection with the terminal device. The conversion module 120 is used to convert the voltage provided by the terminal device.

[0428] Specifically, the conversion module 120 can be a DC-DC converter or a DC-AC converter. The conversion module 120 can be detachably connected to the terminal device. The terminal device can provide voltage, and the conversion module 120 can convert the voltage provided by the terminal device. In this way, by detachably connecting the conversion module 120 to the terminal device, when it is necessary to replace or repair the conversion module 120, the conversion module 120 can be directly removed from the terminal device for repair or replacement, which reduces the difficulty of maintenance and upkeep of the terminal device and the conversion module 120.

[0429] The terminal device can be the battery module 110 or battery module 5 in the energy storage unit 100 described in the above embodiments, or other devices that can provide voltage. This application does not specifically limit this.

[0430] It should be noted that in this embodiment, the method of detachable connection between the terminal device and the conversion module 120 is the same as the method of detachable connection between the conversion module 120 and the battery module 110 in the energy storage unit 100 in the above embodiment, and the technical effects are also similar, so it will not be described in detail here.

[0431] This application also provides an energy storage device. Referring to FIG32, a structural schematic diagram of an energy storage device according to an embodiment of this application is shown. The energy storage device may specifically include the energy storage unit 100 described in any of the above embodiments. The energy storage device may also be the battery system in the foregoing embodiments, as shown in FIGS. 21 and 22.

[0432] It should be noted that in this embodiment, the structure of the energy storage unit 100 is the same as that of the energy storage unit 100 in any of the above embodiments, and its technical effects are also similar, so it will not be described in detail here.

[0433] Optionally, as shown in FIG32, there are at least two energy storage units 100, which are stacked and distributed, and two adjacent battery modules 110 are electrically connected.

[0434] Specifically, at least two energy storage units 100 are stacked, and two adjacent battery modules 110 are electrically connected, so that the battery modules 110 in the multiple energy storage units 100 are interconnected. In practical applications, multiple energy storage units 100 allow the energy storage device to be flexibly adjusted according to the user's actual needs. Whether it is increasing capacity or voltage, it can be achieved by simply adding more energy storage units 100, which improves the scalability and adaptability of the energy storage device.

[0435] Optionally, two adjacent battery modules 110 can be detachably connected. In practical applications, by making two adjacent battery modules detachably connected, users can add or remove battery modules 110 according to actual needs, flexibly adjust the capacity and voltage of the energy storage unit, and when a battery module 110 fails, the faulty battery module 110 can be directly removed and replaced without disassembling the entire energy storage device, reducing maintenance costs and time.

[0436] Optionally, as shown in Figures 23-32, one end face of two adjacent battery modules 110 that are in contact with each other is provided with a third plug-in portion 102, and the other end face is provided with a fourth plug-in portion. The third plug-in portion 102 is provided with a third electrical connector, and the fourth plug-in portion is provided with a fourth electrical connector. When the third plug-in portion 102 and the fourth plug-in portion are plugged into each other, the third electrical connector and the fourth electrical connector are electrically connected.

[0437] Specifically, two adjacent battery modules 110 are connected by a plug-in connection. One end face of each adjacent battery module 110 has a third plug-in portion 102 and a third electrical connector, while the other end face has a fourth plug-in portion and a fourth electrical connector. The third plug-in portion 102 of one battery module 110 and the fourth plug-in portion of the adjacent battery module 110 can be plugged into each other, and the third electrical connector of one battery module 110 can be electrically connected to the fourth electrical connector of the adjacent battery module 110. In practical applications, the plug-in connection between the two battery modules 110 makes the installation process very quick and simple. When maintenance or replacement of battery modules is required, disassembly can be performed quickly, reducing maintenance time.

[0438] Specifically, the third plug-in part includes a third plug-in groove 1021 and a third electrical connector 1022. The third plug-in groove 1021 is disposed on the end face, and the third electrical connector 1022 is disposed inside the third plug-in groove to protect the third electrical connector 1022.

[0439] It should be noted that the structures of the fourth connector, the third connector 102, the third electrical connector, and the fourth electrical connector can be set according to specific circumstances. This embodiment does not impose specific limitations on this.

[0440] As shown in Figure 32, optionally, the energy storage device further includes a second control module 2, which is connected to and electrically connected to the energy storage unit 100. Specifically, the second control module 2 can also be the high-voltage box 8 in the aforementioned embodiments, as shown in Figures 21 and 22.

[0441] Specifically, the second control module 2 is stacked on top of the battery module 110. The second control module 2 can monitor the status of the battery module 110 by continuously monitoring parameters such as voltage, current, and temperature to ensure that all battery modules 20 operate within safe and efficient ranges. It implements battery management algorithms, including ensuring consistent charging states of the battery modules 20, avoiding overcharging, over-discharging, and excessively high or low temperatures, thereby extending the lifespan of the battery module 110.

[0442] In some alternative embodiments, the energy storage device further includes: a base 3 connected to the energy storage unit 100; and an interlocking member 4 connected to the energy storage unit 100 and / or the base 3. Specifically, the base 3 may also be the base 9 in the aforementioned embodiments, as shown in Figure 22.

[0443] The base 3 is connected to the bottom of the battery module 110. The base 3 is used to support the energy storage unit 100, prevent the battery module 110 from directly contacting the bottom surface, and improve the safety of the battery module 110.

[0444] Interlocking components 4 can be connected to the battery module 110 or the base 3, or both the battery module 110 and the base 3 can be equipped with interlocking components 4. Interlocking components 4 can be connected to other fixing devices. Other fixing devices refer to devices that cannot be moved at will, in order to fix the energy storage device and prevent the energy storage device from moving or tipping over due to accidents, thereby improving the safety and stability of the energy storage device.

[0445] For example, other fixing devices can be walls, and interlocking components 4 can be fixedly connected to the wall to fix the energy storage device.

[0446] In some alternative embodiments, the interlocking component 4 includes a bracket, one side of which is fixedly connected to the battery module 110 or the base 3, and the other side of the bracket is provided with holes or slots that match the embedded parts in other fixing devices. By connecting the embedded parts to the holes or slots, the energy storage device can be tightly connected to the wall. The embedded parts can be expansion bolts.

[0447] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0448] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

A first plug-in component (10) includes: Multiple first conductive components (11) correspond to multiple second conductive components (21) of the second plug-in component (20); During the insertion process of the first plug-in component (10) and the second plug-in component (20), the electrical connection times of the plurality of first conductive components (11) and the corresponding second conductive components (21) are different. The first plug-in component (10) according to claim 1, wherein, The plurality of first conductive components (11) include a first pre-charge component (34) for connecting with the second pre-charge component (14) of the second conductive component (21) to realize the connection between the first device and the pre-charge unit (61) in the second device; The plurality of first conductive components (11) include a first power component (35) for connecting to the second power component (15) of the second conductive component (21) to realize the connection between the DC / DC converter (62) of the first device and the second device; The electrical connection time of the first pre-charge component (34) is earlier than the electrical connection time of the first power component (35). The first plug-in component (10) according to claim 2, wherein, The first device is a battery module (5); the second device is a power module (6). The first plug-in component (10) according to claim 2 or 3, wherein, The first pre-charge component (34) includes: a first sub-pre-charge component (43) and a second sub-pre-charge component (44); The first sub-precharge component (43) is connected to the first input terminal of the precharge unit (61); the first output terminal of the precharge unit (61) is connected to the low-voltage first input terminal of the DC / DC converter (62); The second sub-precharge component (44) is connected to the second input terminal of the precharge unit (61); the second output terminal of the precharge unit (61) is connected to the low-voltage second input terminal of the DC / DC converter (62). The first plug-in component (10) according to claim 4, wherein, The pre-charge unit (61) includes: a resistor; One end of the resistor serves as the first input terminal of the precharge unit (61) and is connected to the first sub-precharge component (43); the other end of the resistor serves as the first output terminal of the precharge unit (61) and is connected to the low-voltage first input terminal of the DC / DC converter (62). The second input terminal of the precharge unit (61) is connected to the second sub-precharge component (44), and the second output terminal of the precharge unit (61) is connected to the low-voltage second input terminal of the DC / DC converter (62). The first plug-in component (10) according to claim 3, wherein, The first power component (35) includes a first low-voltage power component (37); The first low-voltage power component (37) is used to connect with the second low-voltage power component (17) of the second power component (15) to transmit the voltage output by the battery module (5). The first plug-in component (10) according to any one of claims 2 to 6, wherein, The first power component (35) includes a first high-voltage power component (38); The first high-voltage power component (38) is used to connect with the second high-voltage power component (18) of the second power component (15) to transmit the voltage output by the DC / DC converter (62). The first plug-in component (10) according to claim 6, wherein, The first low-voltage power unit (37) includes: a first sub-low-voltage power unit (41) and a second sub-low-voltage power unit (42); The first sub-low voltage power unit (41) is connected to the low voltage first input terminal of the DC / DC converter (62); The second sub-low voltage power unit (42) is connected to the low voltage second input terminal of the DC / DC converter (62). The first plug-in component (10) according to claim 3, wherein, The plurality of first conductive components (11) include a first signal component (39) for connecting with the second signal component (19) of the second conductive component (21) to realize the connection between the communication unit (63) of the battery module (5) and the power module (6); The electrical connection time of the first signal component (39) is later than the electrical connection time of the first power component (35). The first plug-in component (10) according to claim 3, wherein, The plurality of first conductive components (11) include a first positioning detection component (45) for connecting with the second positioning detection component (46) of the second conductive component (21) to realize connection detection between the battery module (5) and the power module (6); The electrical connection time of the first positioning detection component (45) is later than the electrical connection time of the first power component (35). The first plug-in component (10) according to any one of claims 1 to 10, wherein, The first plug-in component (10) is connected to the power module (6). The first plug-in component (10) according to claim 11, wherein, The power module (6) includes: a circuit board; The first plug-in component (10) is soldered onto the circuit board. The first plug-in component (10) according to any one of claims 1 to 12, wherein, The first plug-in component (10) further includes a mounting plate for fixing the first plug-in component (10). The first plug-in component (10) according to claim 11, wherein, The power module (6) has a metal casing. The first plug-in component (10) according to claim 14, wherein, The plurality of first conductive components (11) include: a first grounding component (36); The first grounding component (36) is used to connect with the second grounding component (16) of the second conductive component (21) to realize the connection between the outer shell of the power module (6) and the outer shell of the battery module (5); wherein the outer shell of the battery module (5) is grounded. The first plug-in component (10) according to any one of claims 1 to 15, wherein, The lengths of the plurality of first conductive components (11) and / or the plurality of second conductive components (21) are different. The first plug-in component (10) according to claim 16, wherein, The plurality of first conductive components (11) have the same length, while the plurality of second conductive components (21) have different lengths. The first plug-in component (10) according to claim 17, wherein, The plurality of first conductive components (11) include a plurality of conductive pins (12), the plurality of conductive pins (12) having the same length in the insertion direction. The first plug-in component (10) according to any one of claims 16 to 18, wherein, The lengths of the plurality of first conductive components (11) are different, while the lengths of the plurality of second conductive components (21) are the same. The first plug-in component (10) according to claim 19, wherein, The first conductive component (11) includes a conductive pin (12) configured to make electrical contact with the second conductive component (21). The first plug-in component (10) according to claim 20, wherein, The conductive pins (12) of the plurality of first conductive components (11) have different lengths in the insertion direction. The first plug-in component (10) according to claim 20, wherein, The conductive pins (12) of the plurality of first conductive components (11) are telescopic structures, and the lengths of the conductive pins (12) of the plurality of first conductive components (11) are different. The first plug-in component (10) according to claim 18 or 20, wherein, The conductive pins (12) of the plurality of first conductive components (11) have different cross-sectional dimensions. The first plug-in component (10) according to any one of claims 16 to 23, wherein, The lengths of the plurality of first conductive components (11) are different, and the lengths of the plurality of second conductive components (21) are different. The first plug-in component (10) according to claim 24, wherein, The first conductive component (11) includes a retractable conductive pin (12); the conductive pins (12) of the plurality of first conductive components (11) have different lengths. The first plug-in component (10) according to any one of claims 1 to 25, wherein, The plurality of first conductive components (11) are divided into multi-level first conductive component groups (31), and the plurality of second conductive components (21) are divided into multi-level second conductive component groups (32); Among them, the first conductive component group (31) and the second conductive component group (32) of the same level are electrically connected at the same time, while the first conductive component group (31) and the second conductive component group (32) of different levels are electrically connected at different times. The first plug-in component (10) according to claim 26, wherein, The multi-level first conductive component group (31) includes: a first-level first conductive component group (311), a second-level first conductive component group (312), and a third-level first conductive component group (313) with priority ordered from high to low. Among them, the higher the priority, the earlier the electrical connection time. The first plug-in component (10) according to claim 27, wherein, In the multi-level first conductive component group (31), the first conductive component (11) with higher priority has a longer length, and the first conductive components (11) of the same level have the same length. The first plug-in component (10) according to claim 27 or 28, wherein, The first conductive components (11) in the multi-level first conductive component group (31) have the same length; In the multi-level second conductive component group (32), the second conductive component (21) with higher priority has a longer length, and the second conductive components (21) of the same level have the same length. A second plug-in component (20) includes: Multiple second conductive components (21) correspond to multiple first conductive components (11) of the first plug-in component (10); During the insertion process of the first plug-in component (10) and the second plug-in component (20), the electrical connection times of the plurality of first conductive components (11) and the corresponding second conductive components (21) are different. The second plug-in component (20) according to claim 30, wherein, The plurality of second conductive components (21) include a second pre-charge component (14) for connecting with the first pre-charge component (34) of the first conductive component (11) to realize the connection between the first device and the pre-charge unit (61) in the second device; The plurality of second conductive components (21) include a second power component (15) for connecting to the first power component (35) of the first conductive component (11) to realize the connection between the DC / DC converter (62) of the first device and the second device; The electrical connection time of the second pre-charge component (14) is earlier than the electrical connection time of the second power component (15). The second plug-in component (20) according to claim 31, wherein, The first device is a battery module (5); the second device is a power module (6). The second plug-in component (20) according to claim 32, wherein, The second precharge component (14) includes: a third sub-precharge component (47) and a fourth sub-precharge component (48); The third sub-precharge component (47) is connected to the first output terminal of the battery module (5); The fourth sub-precharge component (48) is connected to the second output terminal of the battery module (5). The second plug-in component (20) according to claim 32 or 33, wherein, The second power unit (15) includes a second low-voltage power unit (17); The second low-voltage power component (17) is used to connect with the first low-voltage power component (37) of the first power component (35) to transmit the voltage output by the battery module (5). The second plug-in component (20) according to any one of claims 31 to 34, wherein, The second power component (15) includes a second high-voltage power component (18); The second high-voltage power component (18) is connected to the first high-voltage power component (38) of the first power component (35) to transmit the voltage output by the DC / DC converter (62). The second plug-in component (20) according to claim 34, wherein, The second low-voltage power unit (17) includes: a third sub-low-voltage power unit (26) and a fourth sub-low-voltage power unit (27); The third sub-low-voltage power component (26) is connected to the first output terminal of the battery module (5); The fourth sub-low-voltage power component (27) is connected to the second output terminal of the battery module (5). The second plug-in component (20) according to claim 32, wherein, The plurality of second conductive components (21) include a second signal component (19) for connecting with the first signal component (39) of the first conductive component (11) to realize the connection between the communication unit (63) of the battery module (5) and the power module (6); The electrical connection time of the second signal component (19) is later than the electrical connection time of the second power component (15). The second plug-in component (20) according to claim 32, wherein, The plurality of second conductive components (21) include a second positioning detection component (46) for connecting with the first positioning detection component (45) of the first conductive component (11) to realize connection detection between the battery module (5) and the power module (6); The electrical connection time of the second positioning detection component (46) is later than the electrical connection time of the second power component (15). The second plug-in component (20) according to any one of claims 30 to 38, wherein, The second plug-in component (20) is connected to the battery module (5). The second plug-in component (20) according to any one of claims 30 to 39, wherein, The second plug-in component (20) further includes a mounting plate for fixing the second plug-in component (20). The second plug-in component (20) according to claim 39, wherein, The battery module (5) has a metal casing. The second plug-in component (20) according to claim 41, wherein, The plurality of second conductive components (21) include: a second grounding component (16); The second grounding component (16) is used to connect with the first grounding component (36) of the first conductive component (11) to realize the connection between the housing of the power module (6) and the housing of the battery module (5); wherein the housing of the battery module (5) is grounded. The second plug-in component (20) according to any one of claims 30 to 42, wherein, The lengths of the plurality of first conductive components (11) and / or the plurality of second conductive components (21) are different. The second plug-in component (20) according to claim 43, wherein, The plurality of first conductive components (11) have the same length, while the plurality of second conductive components (21) have different lengths. The second plug-in component (20) according to claim 44, wherein, The second conductive component (21) includes a conductive socket (22) having a conductive inner wall (23), and the conductive inner walls (23) of the plurality of second conductive components (21) have different lengths. The second plug-in component (20) according to claim 44, wherein, The second conductive component (21) includes a stretchable elastic conductive portion (24), and the elastic conductive portions (24) of the plurality of second conductive components (21) have different lengths. The second plug-in component (20) according to claim 46, wherein, The elastic conductive part (24) has a conductive contact surface (25) and is configured to contact the conductive pin (12) of the first conductive component (11); The conductive contact surfaces (25) of the plurality of second conductive components (21) are positioned differently in the insertion direction. The second plug-in component (20) according to any one of claims 43 to 47, wherein, The lengths of the plurality of first conductive components (11) are different; the lengths of the plurality of second conductive components (21) are the same. The second plug-in component (20) according to claim 48, wherein, The second conductive component (21) includes a conductive socket (22) having a conductive inner wall (23), and the conductive inner walls (23) of the plurality of second conductive components (21) have the same length. The second plug-in component (20) according to claim 48, wherein, The second conductive component (21) has a conductive contact surface (25) and is configured to contact the conductive pin (12) of the first conductive component (11); The conductive contact surfaces (25) of the plurality of second conductive components (21) are in the same position in the insertion direction. The second plug-in component (20) according to claim 45 or 49, wherein, The conductive sockets (22) of the plurality of second conductive components (21) have different inner diameters. The second plug-in component (20) according to any one of claims 30 to 51, wherein, The lengths of the plurality of second conductive components (21) are different; the lengths of the plurality of first conductive components (11) are different. The second plug-in component (20) according to claim 52, wherein, The second conductive component (21) includes a stretchable elastic conductive part (24); The elastic conductive portions (24) of the plurality of second conductive components (21) have different lengths. The second plug-in component (20) according to any one of claims 30 to 53, wherein, The plurality of first conductive components (11) are divided into multi-level first conductive component groups (31), and the plurality of second conductive components (21) are divided into multi-level second conductive component groups (32); Among them, the first conductive component group (31) and the second conductive component group (32) of the same level are electrically connected at the same time, while the first conductive component group (31) and the second conductive component group (32) of different levels are electrically connected at different times. The second plug-in component (20) according to claim 54, wherein, The multi-level second conductive component group (32) includes: a first-level second conductive component group (321), a second-level second conductive component group (322), and a third-level second conductive component group (323) with priority ordered from high to low. Among them, the higher the priority, the earlier the electrical connection time. The second plug-in component (20) according to claim 55, wherein, The second conductive components (21) in the multi-level second conductive component group (32) have the same length; In the multi-level first conductive component group (31), the first conductive component (11) with higher priority has a longer length, and the first conductive components (11) of the same level have the same length. The second plug-in component (20) according to claim 55 or 56, wherein, In the multi-level second conductive component group (32), the second conductive component (21) with higher priority has a longer length, and the second conductive components (21) of the same level have the same length. The second plug-in component (20) according to any one of claims 55 to 57, wherein, In the multi-level second conductive component group (32), the second conductive component (21) with higher priority has a longer length, and the second conductive components (21) of the same level have the same length. A power module (6) is connected to a first plug-in component (10) as described in any one of claims 1 to 29, or a second plug-in component (20) as described in any one of claims 30 to 58. A battery module (5) is connected to a second plug-in component (20) as described in any one of claims 30 to 58, or a first plug-in component (10) as described in any one of claims 1 to 29. According to claim 60, the battery module (5) wherein, The battery module (5) includes: Battery module (51), second low-voltage power component (17) connected to second plug-in component (20); The battery management module (52) is connected to the second signal component (19) and the second high-voltage power component (18) of the second plug-in component (20). A battery pack (7) includes: The power module (6) as claimed in claim 59, and the battery module (5) as claimed in claim 60 or 61; The power module (6) and the battery module (5) are connected via a first plug-in component (10) and a second plug-in component (20). The battery pack (7) according to claim 62, wherein, The battery pack (7) has a high-voltage power supply terminal (71); The high-voltage power supply terminal (71) is connected to the power module (6) / battery module (5) via a high-voltage bus, and is used to output the voltage output by the power module (6); wherein, the battery module (5) is connected to the output terminal of the power module (6) via a first high-voltage power component (38) and a second high-voltage power component (18). The battery pack (7) according to claim 63, wherein, The battery module (5) includes a relay (53) connected between the high-voltage power supply terminal (71) and the high-voltage busbar; The first conductive component (11) includes a second safety detection component (40); the second conductive component (21) includes a first safety detection component (30); after the first plug-in component (10) and the second plug-in component (20) are plugged in, the first safety detection component (30) and the second safety detection component (40) form a power-on circuit to turn on the relay (53). The battery pack (7) according to claim 64, wherein, The first security detection component (30) includes: a first sub-security detection component (332) and a second sub-security detection component (333); The first control module (54) of the relay (53) is connected in series between the first sub-safety detection component (332) and the second sub-safety detection component (333), and the switching module of the relay (53) is connected in series between the high-voltage power supply terminal (71) and the high-voltage bus. The switching module of the relay (53) switches to on or off in response to whether the first control module (54) of the relay (53) is energized. The battery pack (7) according to claim 65, wherein, The second safety detection component (331) includes a third sub-safety detection component (334) and a fourth sub-safety detection component (335) that are electrically connected; the third sub-safety detection component (334) corresponds to the first sub-safety detection component (332), and the fourth sub-safety detection component (335) corresponds to the second sub-safety detection component (333). The battery pack (7) according to any one of claims 62 to 66, wherein, The battery pack (7) has signal terminals (72); The signal terminal (72) is connected to the battery module (5) and is used to transmit the communication signal of the battery module (5). A battery system comprising: N power modules (6) as described in claim 59, N battery modules (5) as described in claim 60 or 61, and a high-voltage box (8); wherein N is a positive integer; The power module (6) and the corresponding battery module (5) are connected through the first plug-in component (10) and the second plug-in component (20); the battery modules (5) are cascaded and electrically connected; the high voltage box (8) is electrically connected to the last stage battery module (5). The battery system according to claim 68, wherein, The battery module (5) has a high-voltage power supply terminal (71); The high-voltage power supply terminal (71) is connected to the power module (6) via the high-voltage bus, the first high-voltage power component (38), and the second high-voltage power component (18) to output the voltage output by the power module (6). The battery system according to claim 69, wherein, The battery module (5) includes a relay (53) connected between the high-voltage power supply terminal (71) and the high-voltage busbar; The first conductive component (11) includes: a second safety detection component (40); the second conductive component (21) includes: a first safety detection component (30); after the first plug-in component (10) and the second plug-in component (20) are plugged in, the first safety detection component (30) and the second safety detection component (40) form a power-conducting circuit to turn on the relay (53); The electrical connection time of the first safety detection component (30) and the second safety detection component (40) is later than the electrical connection time of the first power component (35) and the second power component (15). The battery system according to claim 70, wherein, The first security detection component (30) includes: a first sub-security detection component (332) and a second sub-security detection component (333); The first control module (54) of the relay (53) is connected in series between the first sub-safety detection component (332) and the second sub-safety detection component (333), and the switching module of the relay (53) is connected in series between the high-voltage power supply terminal (71) and the high-voltage bus. The switching module of the relay (53) switches to on or off in response to whether the first control module (54) of the relay (53) is energized. The battery system according to claim 71, wherein, The second safety detection component (40) includes a third sub-safety detection component (334) and a fourth sub-safety detection component (335) that are electrically connected; the third sub-safety detection component (334) corresponds to the first sub-safety detection component (332), and the fourth sub-safety detection component (335) corresponds to the second sub-safety detection component (333). The battery system according to any one of claims 68 to 72, wherein, The battery module (5) has a signal terminal (72); The signal terminal (72) is connected to the battery management module (52) of the battery module (5) and is used to transmit the communication signal of the battery management module (52). The battery system according to any one of claims 68 to 73, wherein, The high-voltage box (8) includes a high-voltage interface (81) and a signal interface (82); The high-voltage interface (81) is used to output the superimposed voltage of the N battery modules (5); The signal interface (82) is used for data communication with the outside world. The battery system according to any one of claims 68 to 74, wherein, The high-voltage box (8) includes a voltage conversion module (83) and a low-voltage interface (84); The voltage conversion module (83) is used to convert the superimposed voltage of the N battery modules (6); The low-voltage interface (84) is connected to the voltage conversion module (83) and is used to output the voltage output by the voltage conversion module (83). The battery system according to any one of claims 69 to 72, wherein, The battery modules (5) are stacked, and the high-voltage power supply terminals (71) of adjacent battery modules (5) are electrically connected. An apparatus comprising a battery system as described in any one of claims 68 to 76 and an inverter. An energy storage unit, the energy storage unit (100) comprising: Battery module (110); And a conversion module (120), which is detachably connected to the battery module (110) and electrically connected to the battery module (110), and the conversion module (120) is used to convert the voltage provided by the battery module (110). The energy storage unit according to claim 78, wherein, The battery module (110) includes a first plug-in portion (101), and the conversion module (120) includes a second plug-in portion (201), wherein the first plug-in portion (101) and the second plug-in portion (201) are plugged into each other. The energy storage unit according to claim 79, wherein, The first plug-in portion (101) and the second plug-in portion (201) are hot-plugged together. The energy storage unit according to claim 79 or 80, wherein, The first plug-in part (101) is provided with a first electrical connector (1012), and the second plug-in part (201) is provided with a second electrical connector (2012). When the first plug-in part (101) and the second plug-in part (201) are plugged into each other, the first electrical connector (1012) and the second electrical connector (2012) are electrically connected. The energy storage unit according to claim 81, wherein, The first plug-in portion (101) includes a first plug-in groove (1011), and the first electrical connector (1012) is disposed in the first plug-in groove (1011). The second plug-in portion (201) includes a second plug-in groove (2011), and the second electrical connector (2012) is disposed in the second plug-in groove (2011). The energy storage unit according to claim 82, wherein, A sealing element (205) is connected to the first insertion slot (1011) or the second insertion slot (2011), and the sealing element (205) is used to seal the first insertion slot (1011) and the second insertion slot (2011). The energy storage unit according to any one of claims 79 to 83, wherein, The battery module (110) includes a target surface (103) and a side surface (104) adjacent to the target surface (103). The first plug-in portion (101) is connected to either the target surface or the side surface, wherein the target surface is the surface with the largest area of ​​the battery module (110). The energy storage unit according to any one of claims 79 to 84, wherein, The conversion module (120) has a handle (204) on the side away from the second plug-in part (201). The energy storage unit according to any one of claims 79 to 85, wherein, The battery module (110) is connected to a guide rail (130), and the conversion module (120) is provided with a slider (203), which is slidably connected to the guide rail (130). The energy storage unit according to claim 86, wherein, The guide rail (130) includes a first connecting part (301), a second connecting part (302) and a third connecting part (303) connected vertically in sequence. The first connecting part (301) is fixedly connected to the battery module (110). The second connecting part (302), the third connecting part (303) and the battery module (110) together define a receiving cavity. The slider (203) moves within the receiving cavity. The energy storage unit according to claim 86 or 87, wherein, There are two guide rails (130), and the two guide rails (130) are connected to the battery module (110) at intervals. The energy storage unit according to any one of claims 86 to 88, wherein, It also includes a limiting member (140), which is disposed on the side of the guide rail (130) and the slider (203) away from the first insertion part (101). The limiting member (140) is used to fix the slider (203) after the guide rail (130) stops moving, so as to limit the slider (203). The energy storage unit according to claim 89, wherein, The limiting member (140) includes a first fixing part (401), a second fixing part (402), and a fastener (403). The guide rail (130) extends outward from the side away from the first insertion part (101) to form the first fixing part (401). The slider (203) extends outward from the side away from the first insertion part (101) to form the second fixing part (401). The first fixing part (401) and the second fixing part (402) are superimposed. The fastener (403) passes through the first fixing part (401) and the second fixing part (402) in sequence to fix the slider (203). The energy storage unit according to any one of claims 78 to 90, wherein, The conversion module (120) includes either a DC-DC converter or a DC-AC converter. A conversion module (120) is detachably connected to a terminal device and is adapted to be electrically connected to the terminal device, the conversion module (120) being used to convert the voltage provided by the terminal device. An energy storage device, the energy storage device comprising: The energy storage unit according to any one of claims 78 to 91. The energy storage device according to claim 93, wherein, The energy storage unit (100) is at least two, and the at least two energy storage units (100) are stacked and distributed, and two adjacent battery modules (110) are electrically connected. The energy storage device according to claim 94, wherein, The two adjacent battery modules (110) are detachably connected. The energy storage device according to claim 95, wherein, Two adjacent battery modules (110) have their end faces in contact with each other. One end face is provided with a third plug-in portion (102), and the other end face is provided with a fourth plug-in portion. The third plug-in portion (102) is provided with a third electrical connector (1022), and the fourth plug-in portion is provided with a fourth electrical connector. When the third plug-in portion (102) and the fourth plug-in portion are plugged into each other, the third electrical connector (1022) and the fourth electrical connector are electrically connected. The energy storage device according to any one of claims 93 to 96, wherein, The energy storage device further includes a second control module (2), which is connected to the energy storage unit (100) and electrically connected to the battery module (110). The energy storage device according to any one of claims 93 to 97, wherein, The energy storage device also includes a base (3), which is connected to the energy storage unit (100); And an interlocking component (4), which is connected to the energy storage unit (100) or the base (3).

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