Connector, battery pack assembly, and vehicle

Abstract

This utility model discloses a connector, a battery pack assembly, and a vehicle, relating to the field of battery pack technology. The connector includes: a main body plate having a connecting side and a plugging side; the connecting side having an inner sealing element and an outer sealing element; the plugging side having a plugging shell, a shielding shell, and plugging terminals; the shielding shell surrounding the plugging terminals; the plugging shell surrounding the shielding shell and defining a connector cavity with the shielding shell; the inner sealing element corresponding to the shielding shell and the outer sealing element corresponding to the plugging shell; and a water ingress detection structure including a water ingress detection terminal extending into the connector cavity. The connector of this utility model embodiment forms a double seal between the main body plate and the housing through the inner and outer sealing elements, and the water ingress detection terminal can detect water ingress into the connector cavity, providing early warning to avoid dangerous situations, reduce economic losses, and protect personal safety.

Description

Technical Field

[0001] This utility model relates to the field of battery pack technology, and in particular to a connector, a battery pack assembly, and a vehicle. Background Technology

[0002] With the government's vigorous promotion of new energy, new energy passenger vehicles have entered all aspects of social production and life. Because passenger vehicles face various complex and uncertain operating environments, the safety requirements for power batteries are extremely high. Considering that off-road or near-off-road new energy vehicles may encounter collisions with underwater rocks when traversing rivers or puddles in outdoor off-road scenarios, or the strong impact of water waves caused by the vehicle rapidly wading through water, the connector seals may fail, leading to water ingress and battery pack failure. Furthermore, insulation failure may occur, resulting in short circuits, fires, combustion, or even explosions, seriously endangering personal safety and causing economic losses. Therefore, there is room for improvement in the connector sealing structure. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a connector that can form two layers of seal between the main body plate and the housing, and allows the water ingress detection terminal to detect water ingress into the connector cavity, so as to provide early warning and avoid dangerous situations such as battery pack fires, thereby reducing economic losses and protecting personal safety.

[0004] The connector according to an embodiment of the present invention includes: a main body plate having a connecting side and a plugging side facing away from each other; the connecting side having an inner sealing element and an outer sealing element that seal with the housing of a battery pack; the plugging side having a plugging shell, a shielding shell, and plugging terminals; the shielding shell being distributed around the plugging terminals; the plugging shell being disposed around the shielding shell and defining a connector cavity with the shielding shell; the inner sealing element being distributed correspondingly to the shielding shell and the outer sealing element being distributed correspondingly to the plugging shell in the thickness direction of the main body plate; and a water ingress detection structure including a water ingress detection terminal extending into the connector cavity.

[0005] According to the present invention, the connector can be connected to the vehicle wiring harness by setting a plug-in side and to the battery pack housing by setting a connection side, so that the connector can realize the electrical connection between the vehicle wiring harness and the battery pack, thereby realizing the transmission of electrical energy or signals. Furthermore, the connection side is provided with spaced inner and outer sealing elements, which can form two layers of seal between the main body plate and the housing, improving the reliability of sealing the gap between the main body plate and the housing. In addition, the water ingress detection terminal extends into the inner cavity of the connector, so that the water ingress detection terminal can detect the water ingress of the inner cavity of the connector, so as to provide early warning and avoid dangerous situations such as battery pack fire, thereby reducing economic losses and protecting personal safety.

[0006] According to some embodiments of the present invention, the connector of the water ingress detection structure further includes two water ingress detection wires, which are respectively connected to the battery management system of the battery pack; wherein, there are two water ingress detection terminals, which are respectively connected to the two water ingress detection wires in a one-to-one correspondence, and the two water ingress detection terminals are adapted to conduct water through the inner cavity of the connector.

[0007] The connector according to some embodiments of the present invention further includes a working resistor connected between the two water inlet detection terminals and adapted to form a parallel distribution with the water in the inner cavity of the connector.

[0008] According to some embodiments of the present invention, in the connector, the two water inlet detection terminals are spaced apart in the horizontal direction; and / or, both water inlet detection terminals are located at the bottom of the connector cavity.

[0009] According to some embodiments of the present invention, the connector body plate is provided with a plurality of through holes, one end of which passes through the space between the inner sealing element and the outer sealing element, and the other end passes through the inner cavity of the connector. The through holes are used to pass through the connecting claw portion of the shielding shell.

[0010] According to some embodiments of the connector of the present invention, the plug-in terminal and the shielding shell are both provided in pairs and are arranged in a one-to-one correspondence, and both shielding shells are located inside the plug-in shell.

[0011] According to some embodiments of the connector of the present invention, the inner sealing element is constructed as an inner sealing ring, which is adapted to elastically press against the main body plate and the housing; and / or, the outer sealing element is constructed as an outer sealing ring, which is adapted to elastically press against the main body plate and the housing.

[0012] According to some embodiments of the present invention, the connector has a main body plate with multiple connecting parts, the multiple connecting parts being distributed around the outer sealing element, and the connecting parts being used to be detachably connected to the housing via connectors.

[0013] This utility model also proposes a battery pack assembly.

[0014] The battery pack assembly according to an embodiment of the present invention includes a battery pack and a connector as described in any of the above embodiments, wherein the main body plate and the housing of the battery pack are detachably connected by a connector.

[0015] This utility model also proposes a vehicle.

[0016] The vehicle according to an embodiment of the present invention includes the battery pack assembly described in the above embodiments.

[0017] The vehicle, the battery pack assembly, and the aforementioned connector all have the same advantages over the prior art, and will not be elaborated here.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the connector on the insertion side according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the connector on the connection side according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the water inlet detection structure according to an embodiment of the present utility model.

[0020] Figure label: Connector 100, Main body plate 1, inner seal 11, outer seal 12, plug-in housing 13, shielding housing 14, plug-in terminal 15, connector cavity 16, connecting part 17. Water inlet detection structure 2, water inlet detection terminal 21, water inlet detection wire 22, working resistor 23, equivalent resistor 24. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0022] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model 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 utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The following is for reference. Figures 1-3 The connector 100 according to the present utility model embodiment can form two layers of seal between the main body plate 1 and the housing, and enable the water ingress detection terminal 21 to detect the water ingress of the connector cavity 16, so as to provide early warning and avoid dangerous situations such as battery pack fire, thereby reducing economic losses and protecting personal safety.

[0024] like Figures 1-3 As shown, a connector 100 according to an embodiment of the present invention includes: a main body plate 1 and a water inlet detection structure 2.

[0025] The main body plate 1 has a connection side and a plug-in side that are opposite to each other. The connection side is provided with an inner sealing element 11 and an outer sealing element 12 that are sealed to the battery pack housing. The plug-in side is provided with a plug-in housing 13, a shielding housing 14 and a plug-in terminal 15. The shielding housing 14 is distributed around the plug-in terminal 15. The plug-in housing 13 is arranged around the shielding housing 14 and defines the connector cavity 16 with the shielding housing 14. In the thickness direction of the main body plate 1, the inner sealing element 11 is distributed correspondingly to the shielding housing 14 and the outer sealing element 12 is distributed correspondingly to the plug-in housing 13. The water ingress detection structure 2 includes a water ingress detection terminal 21 that extends into the connector cavity 16.

[0026] Specifically, the connector 100 is installed in the battery pack housing and is a key component for the electrical connection between the battery pack and the vehicle. The connector 100 includes a main body plate 1, which is the main structure of the connector 100 and provides space and position for other components. The main body plate 1 has a connecting side and a plugging side. The connecting side is used to connect to the battery pack housing to allow the connector 100 to be installed on the battery pack housing, thus connecting the connector 100 to the battery pack. The plugging side is used to connect to the wiring harness on the vehicle. This allows for the electrical connection between the battery pack and the vehicle. By configuring the connecting side and the plugging side to face away from each other, they can be positioned facing opposite sides of the main body plate 1. This allows the battery pack housing and the vehicle wiring harness to be connected to opposite sides of the connector 100, improving operational convenience and preventing interference between the wiring harness and the housing, thus enhancing the reliability of the connection between each component and the connector 100, and consequently improving the operational reliability of the connector 100.

[0027] The connecting side is provided with an inner sealing element 11 and an outer sealing element 12 that seal with the battery pack housing. When the connecting side of the main body plate 1 is connected to the battery pack housing, a gap may exist between the main body plate 1 and the housing due to manufacturing errors or other reasons. By placing the inner sealing element 11 and the outer sealing element 12 on the connecting side of the main body plate 1, the inner sealing element 11 and the outer sealing element 12 can be oriented towards the housing. Therefore, when the main body plate 1 is connected to the housing, the inner sealing element 11 and the outer sealing element 12 can be positioned within the main body. Between the main body plate 1 and the casing, the inner sealing element 11 and the outer sealing element 12 can be sealed together with the casing. That is, the inner sealing element 11 and the outer sealing element 12 can jointly seal the gap between the main body plate 1 and the casing to prevent rainwater and other substances from entering the battery pack through the gap between the two. By using the inner sealing element 11 and the outer sealing element 12 together to seal the gap between the main body plate 1 and the casing, the reliability of sealing the gap between the two can be improved, and the entry of rainwater and other substances into the battery pack through the gap between the two can be effectively reduced.

[0028] Meanwhile, the plug-in side is provided with a plug-in housing 13, a shielding housing 14, and plug-in terminals 15. The plug-in terminals 15 are the core of the connector 100, and can be plugged into and connected to the wire harness connector to realize the transmission of electrical energy or signals. The plug-in connection method is simple, reliable, and easy to operate. The shielding housing 14 is used to contact the enclosure to filter and shield noise. The plug-in housing 13, as the external shell structure, is used to protect the connector 100 from mechanical impact, vibration, extrusion, or bending stress, and to prevent the pins, solder joints, or internal contacts from breaking or deforming. By distributing the shielding shell 14 around the plug-in terminal 15, the shielding shell 14 can be constructed as a metal shell that wraps around the plug-in terminal 15, so that it can protect the internal plug-in terminal 15 from external noise interference. Furthermore, by arranging the plug-in shell 13 around the shielding shell 14, the plug-in terminal 15, the shielding shell 14, and the plug-in shell 13 can be arranged sequentially from the inside to the outside, so that the plug-in shell 13 can be placed on the outermost side, so that the plug-in shell 13 can protect both the plug-in terminal 15 and the shielding shell 14 at the same time, thereby ensuring the reliable operation of the connector 100.

[0029] It should be noted that the shielding shell 14 is disposed on the plug-in side and is used to contact the housing. At least a portion of the shielding shell 14 can extend through the main body plate 1 to the connection side to ensure reliable contact between the shielding shell 14 and the housing, thereby ensuring the reliable operation of the shielding shell 14. The plug-in shell 13 extends a certain distance along the thickness direction of the connector 100, so that the plug-in shell 13 can have a certain length, thereby improving the reliability of the plug-in shell 13 in protecting the plug-in terminal 15 and the shielding shell 14. The plug-in shell 13 can also block rainwater from the outside, preventing rainwater from entering the battery pack through the connector 100. Moreover, the connector 100 of this utility model can be a high-voltage connector or a low-voltage connector. When the connector 100 is a high-voltage connector, it can be connected to the high-voltage wiring harness on the vehicle to realize the transmission of electrical energy. When the connector 100 is a low-voltage connector, it can be connected to the low-voltage wiring harness on the vehicle to realize the transmission of signals.

[0030] Furthermore, the plug-in housing 13 and the shielding housing 14 together define the connector cavity 16. The plug-in housing 13 and the shielding housing 14 are arranged at a distance in the inward and outward directions so that they can jointly define the connector cavity 16. Both the plug-in housing 13 and the shielding housing 14 have a certain height in the thickness direction of the connector 100, which makes the connector cavity 16 have a certain depth. This allows rainwater to accumulate in the connector cavity 16. Once water accumulates in the connector cavity 16, the water may enter the battery pack through the connector 100.

[0031] The water ingress detection structure 2 is used to detect water ingress inside the connector cavity 16. The water ingress detection structure 2 includes a water ingress detection terminal 21. The water ingress detection terminal 21 is extended into the cavity of the connector 100 so that the water ingress detection terminal 21 can detect the water ingress inside the connector cavity 16, thereby providing early warning to avoid dangerous situations such as battery pack fires, reducing economic losses and protecting personal safety.

[0032] The water inlet detection terminal 21 can be fixed relative to the main body plate 1. For example, the water inlet detection terminal 21 can be inserted into the main body plate 1 to fix the water inlet detection terminal 21, so as to avoid the water inlet detection terminal 21 shaking or moving during the use of the connector 100, which would lead to inaccurate detection results.

[0033] Furthermore, the inner sealing element 11 is distributed correspondingly to the shielding shell 14 in the thickness direction of the main body plate 1, and the outer sealing element 12 is distributed correspondingly to the plug-in shell 13. The inner sealing element 11 is disposed inside the outer sealing element 12 and is distributed at a distance from the outer sealing element 12. Thus, the inner sealing element 11 and the outer sealing element 12 can form two layers of seal between the main body plate 1 and the box body, which can effectively improve the reliability of sealing the gap between the main body plate 1 and the box body. Moreover, when the outer sealing element 12 fails, the inner sealing element 11 can still reliably seal between the main body plate 1 and the box body, effectively preventing rainwater and other substances from entering the battery pack from the gap between the two.

[0034] According to the present invention, the connector 100 can be connected to the vehicle wiring harness by providing a plug-in side and to the battery pack housing by providing a connection side, so that the connector 100 can realize the electrical connection between the vehicle wiring harness and the battery pack, thereby realizing the transmission of electrical energy or signals. Furthermore, the connection side is provided with an inner sealing element 11 and an outer sealing element 12 that are spaced apart, which can form two layers of seal between the main body plate 1 and the housing, improving the reliability of sealing the gap between the main body plate 1 and the housing. In addition, the water ingress detection terminal 21 extends into the inner cavity 16 of the connector, so that the water ingress detection terminal 21 can detect the water ingress of the inner cavity 16 of the connector, so as to provide early warning and avoid dangerous situations such as battery pack fire, thereby reducing economic losses and protecting personal safety.

[0035] In some embodiments, the water ingress detection structure 2 further includes two water ingress detection wires 22, which are respectively connected to the battery management system of the battery pack; wherein, there are two water ingress detection terminals 21, which are respectively connected to the two water ingress detection wires 22 in a one-to-one correspondence, and the two water ingress detection terminals 21 are adapted to conduct water through the inner cavity 16 of the connector.

[0036] In other words, such as Figure 3As shown, two water ingress detection terminals 21 and two water ingress detection wires 22 are provided, and the two water ingress detection terminals 21 and the two water ingress detection wires 22 are connected one-to-one. That is, for each water ingress detection terminal 21, a water ingress detection wire 22 is provided to connect it to the battery management system. The two water ingress detection terminals 21 can be connected by water in the connector cavity 16. That is, when water enters the connector cavity 16, the two water ingress detection terminals 21 are connected by water, thereby making the water ingress detection terminal 21 connected to the battery management system. At this time, the water ingress detection terminal 21 can transmit the water ingress status to the battery management system in the form of an electrical signal. After receiving the signal, the battery management system can issue an alarm to remind the occupants so that the occupants can deal with the water ingress problem in a timely manner.

[0037] In some embodiments, the connector 100 further includes a working resistor 23 connected between two water inlet detection terminals 21 and adapted to form a parallel distribution with the water in the connector cavity 16.

[0038] Specifically, the working resistor 23 is connected between the two water inlet detection terminals 21, so that the working resistor 23 and the water inlet detection terminals 21 can form a complete circuit with the battery management system. The working resistor 23 and the water in the connector cavity 16 are connected in parallel. That is, when there is no water in the connector cavity 16, the resistance value of the entire circuit is the resistance value of the working resistor 23. When there is water in the connector cavity 16, the two water inlet detection terminals 21 are connected through the water and form an equivalent resistance 24. At this time, the resistance value of the entire circuit is the resistance value of the working resistor and the equivalent resistance 24 connected in parallel.

[0039] Under normal circumstances, the battery management system is only connected to the working resistor and works normally. When water enters the inner cavity 16 of the connector, the two water ingress detection terminals 21 are short-circuited. The equivalent resistance 24 after the short circuit is connected in parallel with the working resistor 23. At this time, the resistance value of the entire circuit will drop rapidly and approach zero. The battery management system receives a signal that the resistance value of the working resistor 23 is abnormal and issues an alarm, indicating that the occupant connector 100 has a water ingress fault.

[0040] It should be noted that the working resistor 23 can be any resistance value with a relatively large value.

[0041] In some embodiments, two water inlet detection terminals 21 are spaced apart in the horizontal direction; and / or, both water inlet detection terminals 21 are located at the bottom of the connector cavity 16.

[0042] Specifically, by arranging the two water inlet detection terminals 21 horizontally at intervals, a certain distance is created between them. This allows the two water inlet detection terminals 21 to be connected to the battery management system via water inlet detection wires 22, and also facilitates the connection of a working resistor 23 between the two water inlet detection terminals 21. Furthermore, by distributing the two water inlet detection terminals 21 horizontally, both terminals 21 are configured to extend vertically, or along the thickness direction of the main body plate 1. This allows the water inlet detection terminals 21 to be exposed toward the connector cavity 16, enabling reliable detection of water ingress within the connector cavity 16.

[0043] Furthermore, both water ingress detection terminals 21 are located at the bottom of the connector cavity 16. This means that when there is little water in the connector cavity 16, the two water ingress detection terminals 21 can be short-circuited by the water, which can improve the sensitivity of the water ingress detection terminals 21 in detecting water ingress.

[0044] In some embodiments, the main body plate 1 is provided with a plurality of through holes, one end of which extends between the inner sealing member 11 and the outer sealing member 12, and the other end extends into the connector cavity 16. The through holes are used to pass through the connecting claw portion of the shielding shell 14.

[0045] It should be noted that at least a portion of the shielding shell 14 can penetrate the main body plate 1 and extend to the connection side to contact the housing. The shielding shell 14 is provided with multiple connecting claws, which are spaced apart and extend through the main body plate 1 to the connection side to contact the housing.

[0046] Specifically, the main body plate 1 is provided with multiple through holes. The through holes are constructed to extend from the plug-in side to the connection side. The through holes are used to allow the connecting claws of the shielding shell 14 to pass through. This makes the number of through holes equal to the number of connecting claws, and allows the through holes to correspond one-to-one with the connecting claws. That is, for each connecting claw, there is a through hole for the connecting claw to pass through. This makes it easier to extend multiple connecting claws to the connection side through multiple through holes, thereby improving the reliability of the contact between the shielding shell 14 and the housing.

[0047] Furthermore, by extending one end of the through hole between the inner seal 11 and the outer seal 12, and extending the other end into the connector cavity 16, the connecting claw of the shielding shell 14 can extend from the connector cavity 16 to the connecting side through the through hole. In this way, when water enters the connector cavity 16, the water can flow through the through hole to the space between the inner seal 11 and the outer seal 12, thereby allowing the inner seal 11 to also block the water in the connector cavity 16. This achieves multiple uses and reduces costs.

[0048] Furthermore, it should be noted that the through hole connects the plug-in side and the connection side. When the outer seal 12 fails, rainwater and other substances enter between the inner seal 11 and the outer seal 12 and can flow through the through hole to the connector cavity 16. The water ingress detection structure 2 can detect the water entering the connector cavity 16 from the connection side. That is, the water ingress detection structure 2 can detect both the water entering the connector cavity 16 from the plug-in side and the water entering the connector cavity 16 from the connection side, effectively preventing water from entering the battery pack through the connector 100.

[0049] In some embodiments, the plug-in terminals 15 and the shielding housings 14 are both provided in pairs and are provided in a one-to-one correspondence, with both shielding housings 14 located inside the plug-in housings 13.

[0050] Specifically, two plug-in terminals 15 are provided, such as one being the positive terminal and the other being the negative terminal. By providing two plug-in terminals 15, a closed loop can be formed when the plug-in terminals 15 are connected to the vehicle wiring harness, so as to realize reliable transmission of electrical energy or signals. Furthermore, two shielding shells 14 are provided, corresponding one-to-one with the two plug-in terminals 15. That is, for each plug-in terminal 15, a shielding shell 14 is provided on its outer side, so that the two shielding shells 14 can together form a complete, 360° uninterrupted shielding system to achieve a better protection effect.

[0051] Furthermore, both shielding shells 14 are disposed within the plug-in shell 13, so that the plug-in shell 13 can simultaneously protect the two shielding shells 14, ensuring the reliability of the shielding shells 14 in operation, and allowing the two shielding shells 14 and the plug-in shell 13 to jointly define the connector cavity 16.

[0052] In some embodiments, the inner sealing element 11 is configured as an inner sealing ring, which is adapted to elastically press against the main body plate 1 and the housing; and / or, the outer sealing element 12 is configured as an outer sealing ring, which is adapted to elastically press against the main body plate 1 and the housing.

[0053] Specifically, the inner sealing element 11 is constructed as an inner sealing ring, such as a rubber sealing ring, so that it has a certain elasticity. This allows the inner sealing ring to elastically press against the main body plate 1 and the casing to seal the gap between the two, thereby blocking rainwater from the outside and preventing rainwater from entering the battery pack. The inner sealing ring can also block rainwater from flowing from the connector cavity 16 through the through hole to the connection side, thus increasing the applicability of the inner sealing ring.

[0054] Meanwhile, the outer sealing ring is constructed as an outer sealing ring, such as a rubber sealing ring, so that it has a certain degree of elasticity. This allows the outer sealing ring to block rainwater from the outside, preventing rainwater from entering the battery pack and thus avoiding dangerous situations such as battery pack fires.

[0055] In some embodiments, the main body plate 1 is provided with a plurality of connecting portions 17, which are distributed around the outer sealing member 12, and the connecting portions 17 are used to be detachably connected to the housing via connectors.

[0056] Specifically, the connecting part 17 is used to connect the main body plate 1 and the housing. Multiple connecting parts 17 can be provided, that is, the number of connecting parts 17 can be two, three or more. In this way, the main body plate 1 and the housing can be connected through multiple connecting parts 17, which can improve the connection reliability between the two. Furthermore, by distributing multiple connecting parts 17 around the outer sealing element 12, multiple connecting parts 17 can be provided on the outside of the outer sealing element 12, so as to avoid the reduction of the working reliability of the outer sealing element 12 or the inner sealing element 11 due to the setting of connecting parts 17. Moreover, multiple connecting parts 17 can be evenly distributed on the outside of the outer sealing element 12, so that the main body plate 1 and the housing can be connected at multiple positions simultaneously through multiple connecting parts 17, which can improve the connection reliability and stability between the two.

[0057] Furthermore, the connecting part 17 is used to detachably connect to the housing via a connector. The connecting part 17 can be configured as a connecting hole, and the connector can be inserted through both the connecting hole and the housing to achieve the connection between the main body plate 1 and the housing. The connection via the connector enables the detachable connection between the main body plate 1 and the housing, making it easy to connect or separate the main body plate 1 from the housing. This facilitates the installation or removal of the connector 100 from the housing, allowing for replacement of the connector 100 when it is damaged or fails. The damaged or failed connector 100 can be removed and a new connector 100 can be installed, reducing subsequent maintenance costs.

[0058] In such Figures 1-2 In the embodiment shown, there are four connecting parts 17, which means there are also four connecting members. The four connecting members can be respectively inserted into the four connecting parts 17 and the housing to achieve a reliable connection between the main body plate 1 and the housing. The four connecting parts 17 are evenly distributed on the outside of the outer sealing member 12, so that the main body plate 1 and the housing can be connected at four positions at the same time through the four connecting members, which can effectively improve the reliability and stability of the connection between the main body plate 1 and the housing.

[0059] In addition, to prevent excessive water accumulation and water from entering the battery pack through the connector 15, sealing measures can be added to the connector 15, such as setting a dedicated rubber sealing ring or applying adhesive.

[0060] It should be noted that the connector 100 of this utility model can be a high-voltage connector 100 or a low-voltage connector 100. That is, the method of sealing the gap between the main body plate 1 and the housing through the inner sealing element 11 and the outer sealing element 12 is applicable to both high-voltage connector 100 and low-voltage connector 100. The method of detecting water ingress in the connector cavity 16 through the water ingress detection structure 2 is also applicable to both high-voltage connector 100 and low-voltage connector 100. The sealing level of the connector 100 in this embodiment of the utility model can reach IP68.

[0061] This utility model also proposes a battery pack assembly.

[0062] The battery pack assembly according to the present utility model includes a battery pack and a connector 100 of any of the above embodiments, and the main body plate 1 is detachably connected to the battery pack housing by a connector. The connector 100 can be installed in the battery pack housing, enabling electrical connection between the battery pack and the vehicle wiring harness for power or signal transmission. The connector 100 can be simultaneously inserted into the connection portion 17 on the main body plate 1 and the housing, allowing for a detachable connection between the connector 100 and the housing. This facilitates installation and removal of the connector 100, reducing future maintenance costs. Furthermore, by providing an inner seal 11 and an outer seal 12, the gap between the main body plate 1 and the housing can be reliably sealed. The inner seal 11 also isolates water flowing from the connector cavity 16 to the connection side, effectively reducing the possibility of rainwater entering the battery pack. Additionally, a water ingress detection terminal 21 is provided at the bottom of the connector cavity 16, and this terminal is connected to the battery pack management system via a water ingress detection wire 22. This allows for detection of water ingress within the connector cavity 16, providing early warning and preventing dangerous situations such as battery pack fires, thus reducing economic losses and protecting personal safety.

[0063] This utility model also proposes a vehicle.

[0064] The vehicle according to this utility model embodiment includes the battery pack assembly described in the above embodiment. The connector 100 enables electrical connection between the battery pack and the vehicle wiring harness to transmit electrical energy or signals. Furthermore, by providing spaced-apart inner sealing elements 11 and outer sealing elements 12, two layers of seal are formed between the main body plate 1 and the housing, effectively reducing the possibility of rainwater entering the battery pack. Additionally, by providing a water ingress detection terminal 21, the water ingress situation in the connector cavity 16 can be detected, providing early warning and preventing dangerous situations such as battery pack fires, thus reducing economic losses and protecting personal safety.

[0065] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0066] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A connector, characterized in that, include: The main body plate (1) has a connecting side and a plugging side that are opposite to each other. The connecting side is provided with an inner sealing element (11) and an outer sealing element (12) that are sealed to the casing of the battery pack. The plugging side is provided with a plugging shell (13), a shielding shell (14) and a plugging terminal (15). The shielding shell (14) is distributed around the plugging terminal (15). The plugging shell (13) is arranged around the shielding shell (14) and defines a connector cavity (16) with the shielding shell (14). In the thickness direction of the main body plate (1), the inner sealing element (11) is distributed correspondingly to the shielding shell (14) and the outer sealing element (12) is distributed correspondingly to the plugging shell (13). Water ingress detection structure (2), the water ingress detection structure (2) includes a water ingress detection terminal (21), the water ingress detection terminal (21) extends into the inner cavity (16) of the connector.

2. The connector according to claim 1, characterized in that, The water ingress detection structure (2) also includes two water ingress detection wires (22), which are respectively connected to the battery management system of the battery pack. Among them, there are two water inlet detection terminals (21) and they are respectively connected to the two water inlet detection wires (22) one by one, and the two water inlet detection terminals (21) are adapted to conduct water through the inner cavity (16) of the connector.

3. The connector according to claim 2, characterized in that, It also includes a working resistor (23) connected between the two water inlet detection terminals (21) and adapted to form a parallel distribution with the water in the connector cavity (16).

4. The connector according to claim 2, characterized in that, The two water inlet detection terminals (21) are spaced apart in the horizontal direction; And / or, both of the water inlet detection terminals (21) are located at the bottom of the connector cavity (16).

5. The connector according to any one of claims 1-4, characterized in that, The main body plate (1) is provided with multiple through holes. One end of the through hole passes through the inner sealing element (11) and the outer sealing element (12), and the other end passes through the inner cavity (16) of the connector. The through hole is used to pass through the connecting claw of the shielding shell (14).

6. The connector according to any one of claims 1-4, characterized in that, The plug-in terminal (15) and the shielding shell (14) are both provided in pairs and are provided in a one-to-one correspondence. Both shielding shells (14) are located inside the plug-in shell (13).

7. The connector according to any one of claims 1-4, characterized in that, The inner sealing element (11) is constructed as an inner sealing ring, which is adapted to elastically press against the main body plate (1) and the box body; And / or, the outer sealing element (12) is constructed as an outer sealing ring, which is adapted to elastically press against the main body plate (1) and the housing.

8. The connector according to any one of claims 1-4, characterized in that, The main body plate (1) is provided with a plurality of connecting parts (17), the plurality of connecting parts (17) are distributed around the outer sealing member (12), and the connecting parts (17) are used to be detachably connected to the box body through connecting parts.

9. A battery pack assembly, characterized in that, Includes a battery pack and a connector according to any one of claims 1-8, wherein the main body plate (1) is detachably connected to the housing of the battery pack via a connector.

10. A vehicle, characterized in that, Includes the battery pack assembly as described in claim 9.

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