Liquid leakage detection connector, battery and electric equipment

Abstract

The utility model provides a liquid leakage detection connector, a battery and electric equipment. The liquid leakage detection connector comprises a connector main body, the connector main body comprises a connector shell and a liquid leakage detection assembly, the connector shell comprises an accommodating space and is provided with a detection port which is arranged at a first end of the connector shell along a first direction and is communicated with the accommodating space, and the liquid leakage detection assembly is fixed in the accommodating space and comprises a detection part located at the detection port; the signal line is provided with a signal leading-in end and a signal leading-out end, the signal leading-in end is electrically connected with the liquid leakage detection assembly and fixed in the containing space, and the signal leading-out end is located outside the containing space so as to output information detected by the liquid leakage detection connector to the outside; the mounting seat comprises a seat body connecting part for mounting the liquid leakage detection connector; and the connector main body is variably connected to the mounting seat through the connecting structure relative to the position of the mounting seat in the first direction.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of batteries, in particular to a liquid leakage detection connector, a battery and an electrical equipment. BACKGROUND

[0002] A large amount of heat is generated in the charging and discharging process of a battery, and the uniform temperature and constant temperature of the battery can be ensured through a cooling system. The battery is usually cooled in a liquid cooling mode by using a cooling liquid. When the battery is subjected to external forces such as vibration and impact, the cooling liquid may leak. After the cooling liquid of the battery leaks into the box body of the battery, the cooling liquid has a certain conductivity, which can cause insulation failure of the battery. When the cooling liquid contacts the high-voltage components inside the battery, the battery is also prone to fire and explosion risks. In order to discover the leakage of the cooling liquid in time, in the related technology, a liquid leakage detection connector installed in the box body of the battery is used to detect whether there is liquid at the bottom of the box body to detect the liquid leakage fault.

[0003] The above statements are only used to provide background technical information related to the present application, and do not necessarily constitute the prior art. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the present application is to provide a liquid leakage detection connector, a battery and an electrical equipment, which aims to make the liquid leakage detection connector beneficial to absorbing product size chain tolerance fluctuations, and beneficial to being compatible with different battery installation height changes of the liquid leakage detection connector.

[0005] The first aspect of the present application provides a liquid leakage detection connector, comprising: a connector main body, comprising a connector shell and a liquid leakage detection assembly, the connector shell comprising a containing space and having a detection port arranged at a first end of the connector shell in a first direction and communicating with the containing space, and the liquid leakage detection assembly being fixed in the containing space and comprising a detection part at the detection port; a signal line having a signal introduction end and a signal leading-out end, the signal introduction end being electrically connected with the liquid leakage detection assembly and fixed in the containing space, and the signal leading-out end being located outside the containing space to output information detected by the liquid leakage detection connector to the outside; a mounting seat, the mounting seat comprising a seat body connecting part for mounting the liquid leakage detection connector; and a connecting structure, the connector main body being variably connected to the mounting seat in the first direction relative to the mounting seat through the connecting structure.

[0006] Based on the leakage detection connector of this application, since the connector body can be variably mounted on the mounting base along the first direction, after the leakage detection connector is installed in the battery case, the connector housing of the connector body can be adapted to the installation height and abut against the bottom wall of the case. This allows the installation height between the seat connection part of the leakage detection connector and the bottom wall of the battery case to change accordingly with the change of the position of the connector body relative to the mounting base, thereby facilitating the absorption of product dimensional tolerance fluctuations and also facilitating compatibility with different battery installation height variations of the leakage detection connector.

[0007] Furthermore, since the leakage detection component of the connector body is fixed within the accommodating space of the connector housing of the connector body, and the signal input end of the signal line is electrically connected to the leakage detection component and fixed within the connector housing, the leakage detection component itself and the connection point with the signal input end of the signal line are firmly connected and move synchronously with the connector housing. Therefore, the components of the leakage detection component, the signal input end of the signal line, and the connection points between the leakage detection component and the signal input end of the signal line are not affected by the positional changes of the connector body relative to the mounting base along the first direction. This allows the detection component and the signal transmission component of the leakage detection connector to maintain their relative positions and connections stably for a long time, which is beneficial for the leakage detection connector to perform its leakage detection function stably for a long time.

[0008] In some embodiments of the leak detection connector, the leak detection component includes: two detection terminals, each detection terminal including a detection end and a wiring portion away from the detection part along the first direction; and a resistor, including a resistor body and two pins connected to the resistor body, wherein the two pins and the signal input ends of the two signal lines are respectively fixed and electrically connected to the corresponding detection terminals through the wiring portions of the two detection terminals.

[0009] This leak detection connector detects leaks by monitoring changes in the resistance at the signal input terminals of two signal lines. Before a leak occurs, the two detection terminals are disconnected, and the resistance between the two signal lines is equal to the resistance of the resistor. After a leak occurs, the two detection terminals are electrically connected via coolant. The coolant has a certain resistance, causing a change in the resistance at the signal input terminals of the two signal lines. This change results in the resistance of the coolant between the two detection terminals combined with the parallel resistance of the leak detection assembly. Therefore, the electrical signal transmitted through the signal output terminals of the two signal lines indicates whether a leak has occurred. Thus, a leak detection assembly can be formed using just two detection terminals and a resistor. The leak detection connector circuit is simple, provides reliable detection results, and is low in cost.

[0010] In some embodiments of the leak detection connector, the detection terminal includes a positioning protrusion, the connector housing includes a terminal locking portion disposed within the accommodating space, the terminal locking portion cooperating with the positioning protrusion to prevent the detection terminal from moving along the first direction from a first end of the connector housing to a second end of the connector housing; and / or the connector housing includes a support platform disposed within the accommodating space and configured to support the connection point of the signal input terminal, the pin, and the wiring portion.

[0011] By providing a positioning protrusion on the detection terminal and a terminal locking part on the connector housing, the position of the detection terminal in the first direction within the connector housing can be limited, preventing the detection part from retracting from the first end to the second end within the connector housing and causing delayed leakage detection.

[0012] A support platform is provided on the connector housing to help maintain a stable connection between the signal inlet, pins and wiring, thereby preventing the leakage detection connector from failing due to unstable connections between the signal inlet, pins and wiring.

[0013] In some embodiments of the leak detection connector, a portion of the leak detection assembly is secured within the receiving space by a potting compound located in at least a portion of the space between the leak detection assembly and the inner wall of the connector housing that forms the receiving space.

[0014] A portion of the leakage detection component is fixed within the accommodating space using potting compound. This facilitates the secure installation of the leakage detection component within the connector housing and also helps prevent this portion of the leakage detection component from being corroded or damaged by external liquids, thereby extending the lifespan of the leakage detection connector.

[0015] In some embodiments of the leak detection connector, the signal line located within the accommodating space is at least partially located within the potting compound.

[0016] By placing the signal line at least partially within the potting compound, there is no relative movement between the signal input end of the signal line and the leakage detection component. This ensures a stable electrical connection between the signal input end and the leakage detection component, thereby preventing the leakage detection connector from failing due to an unstable connection between the signal input end and the leakage detection component.

[0017] In some embodiments of the leak detection connector, the leak detection connector includes a force-applying portion configured to apply a force along a first direction from a second end of the connector body to a first end of the connector body; and / or the connection structure includes a guide portion and a limiting portion, the guide portion being configured to guide the connector body to move relative to the mounting base along the first direction, and the limiting portion being configured to limit the extreme positions of the connector body relative to the mounting base along the first direction.

[0018] The leakage detection connector is equipped with a force-applying part, which helps to keep the connector housing and the bottom wall of the space to be tested, such as the bottom wall of a battery case, in a contact state. This helps to prevent the detection part from moving from the first end to the second end inside the connector housing, which would cause leakage detection to be delayed.

[0019] The connection structure includes a guide section, which helps to restrict the movement path of the connector body relative to the mounting base along the first direction, thereby facilitating a good fit between the detection port and the bottom wall of the battery casing, so that the detection section is in the optimal detection position after the leakage detection connector is installed, thus facilitating timely detection of leakage.

[0020] The connection structure includes a limiting part, which can limit the extreme position of the connector body relative to the mounting base along the first direction, that is, limit the range of changes in the overall size of the leakage detection connector, which is beneficial for the selection and installation of the leakage detection connector.

[0021] In some embodiments of the leak detection connector, the force-applying portion includes an elastic element acting on the connector body and the mounting base; and / or the guiding portion includes a first guiding structure and a second guiding structure respectively disposed on the connector body and the mounting base, the first guiding structure and the second guiding structure being relatively movable and engaging along the first direction; and / or the limiting portion includes a first limiting unit and a second limiting unit, wherein the first limiting unit is configured to limit a first extreme position when the first end of the connector body is closest to the first end of the mounting base along the first direction, and the second limiting unit is configured to limit a second extreme position when the first end of the connector body is furthest from the first end of the mounting base along the first direction.

[0022] The force-applying part includes an elastic element that acts on the connector body and the mounting base. It can continuously apply a force along the first direction from the second end to the first end to the connector body without the need to control the force-applying part. This helps the first end of the connector body where the detection port is located to maintain contact with the bottom wall of the housing, thereby keeping the detection part in the optimal detection position for timely leakage detection.

[0023] The guide section includes a first guide structure and a second guide structure respectively disposed on the connector body and the mounting base. The first guide structure and the second guide structure can move relative to each other along a first direction, eliminating the need for a dedicated guide structure outside the connector body and the mounting base. This allows the guide section to be assembled into place along with the connector body and the mounting base, facilitating the assembly of the leak detection connector. The guide section has a simple structure and stable guiding function.

[0024] The limiting part includes a first limiting unit and a second limiting unit. The first limiting unit and the second limiting unit respectively limit the corresponding extreme positions of the connector body relative to the mounting base along the first direction, thereby limiting the variable length range of the leakage detection connector.

[0025] In some embodiments of the leak detection connector, one of the first guide structure and the second guide structure includes a guide sleeve extending along the first direction, and the other includes a guide post extending along the first direction and located within the cavity of the guide sleeve; and / or one of the first guide structure and the second guide structure includes a guide rail extending along the first direction, and the other includes a guide groove extending along the first direction and cooperating with the guide rail.

[0026] The first guide structure and the second guide structure each include a guide sleeve and a guide post, and the first guide structure and the second guide structure each include a guide rail and a guide groove, which can easily and conveniently guide the movement of the connector body relative to the mounting base along the first direction.

[0027] In some embodiments of the leak detection connector, the elastic element is located within the cavity of the guide sleeve and acts on the connector body and the mounting base by acting on the guide post and the guide sleeve; and / or the guide rail is disposed on one of the guide sleeve and the guide post, and the guide groove is disposed on the other of the guide sleeve and the guide post.

[0028] The elastic element is located within the cavity of the guide sleeve and acts on the connector body and the mounting base through the guide post and the guide sleeve. This integrates the elastic element with the guide portion, eliminating the need for a dedicated mounting structure for the elastic element. This simplifies the structure of the leak detection connector and facilitates its assembly. Furthermore, the location of the elastic element within the guide sleeve ensures no interference between the elastic element and other components of the leak detection connector or outside the connector. This allows for free expansion and contraction of the elastic element, facilitating changes in the position of the connector body relative to the mounting base. This reduces the likelihood of insufficient position adjustment and enables the leak detection connector to detect leaks promptly.

[0029] The guide rail is set on one of the guide sleeve and the guide post, and the guide groove is set on the other of the guide sleeve and the guide post. Both of these are conducive to integrating the moving parts of the multiple guiding functional units of the guide part together. On the one hand, this helps the guide part to realize its guiding function more stably, and on the other hand, it helps to simplify the structure of the leak detection connector and facilitate the assembly of the leak detection connector.

[0030] In some embodiments of the leak detection connector, the first limiting unit includes a first limiting structure and a second limiting structure, the first limiting structure and the second limiting structure being respectively disposed on the first guide structure and the second guide structure; and / or the second limiting unit includes a third limiting structure and a fourth limiting structure, the third limiting structure and the fourth limiting structure being respectively disposed on the opposing surfaces of the connector housing and the mounting base.

[0031] The above-mentioned setting of the limiting part facilitates the integration of the limiting part with the guide part, or the limiting part can be directly set on the opposing surfaces of the connector housing and the mounting base. The cooperating limiting structures of the same limiting unit move relative to each other with the relative movement of the two guide structures of the guide part or with the relative movement of the connector housing and the mounting base, which is conducive to accurate positioning. At the same time, it is conducive to simplifying the structure of the leakage detection connector and facilitating the assembly of the leakage detection connector.

[0032] In some embodiments of the leak detection connector, the connector housing includes: a first housing portion having a first receiving portion, the receiving space including the first receiving portion, the detection port being formed at a first end of the first housing portion along the first direction and communicating with the first receiving portion, and a portion of the leak detection component being located within the first receiving portion; and a second housing portion having a second receiving portion, the receiving space including the second receiving portion, the first end of the second housing portion being fixedly assembled to the second end of the first housing portion along the first direction, and a portion of the leak detection component being located within the second receiving portion.

[0033] The connector housing includes a first housing part and a second housing part that are assembled together, which facilitates the installation of the leakage detection component and signal input terminal inside the connector housing after assembly.

[0034] In some embodiments of the leak detection connector, a portion of the leak detection component is fixed within the second receiving portion by a potting compound located in at least a portion of the space between the leak detection component and the inner wall of the second housing portion for forming the second receiving portion.

[0035] By using potting compound to fix a portion of the leakage detection component into the second receiving portion of the second housing, it is beneficial to securely fix the portion of the leakage detection component into the connector housing, and to prevent the portion of the leakage detection component from being corroded and damaged by external liquids. It is also beneficial to assemble the first housing, the second housing, the leakage detection component, and the signal line, and then inject potting compound between the leakage detection component and the inner wall of the second housing that forms the second receiving portion to form a potting compound. This allows the potting compound to form a better seal for the electrical components in the second receiving portion, and helps to prevent foreign objects or other liquids from flowing into the detection terminal through the side of the first receiving portion away from the detection port, thereby avoiding false detections.

[0036] In some embodiments of the leak detection connector, the leak detection assembly includes two detection terminals and a resistor. The detection terminals include a detection part and a wiring part away from the detection part along the first direction. The resistor includes a resistor body and two pins connected to the resistor body. The signal input terminals of the two pins and the two signal lines are respectively fixed and electrically connected to the corresponding detection terminals through the wiring parts of the two detection terminals. The resistor body is embedded in the potting compound and fixed in the second receiving part.

[0037] The resistor body is embedded in the potting compound and fixed in the second receiving part, which facilitates the fixing of the resistor and the sealing and protection of the resistor body.

[0038] In some embodiments of the leak detection connector, the first end of the second housing portion is fitted onto the second end of the first housing portion and connected by a snap-fit ​​connection.

[0039] The first end of the second housing part is fitted onto the second end of the first housing part and connected by a snap-fit ​​part, which facilitates the quick and stable assembly of the second housing part and the first housing part together.

[0040] In some embodiments of the leak detection connector, the mounting base includes a base plate, and the connector body and the base body connection portion are located on both sides of the base plate along a second direction perpendicular to the first direction. The base body connection portion includes: a boss, which is projecting onto the base plate relative to the base plate toward the side away from the connector body; a latch, which is disposed on the side of the boss away from the base plate; and two flaps, two flaps respectively disposed at both ends of the boss along a third direction, the third direction being perpendicular to the first direction and the second direction. The flaps extend from the boss along the third direction toward the side away from the boss and are inclined along the second direction toward the latch side, wherein the surface of the flap away from the base plate is smoothly connected to the surface of the boss away from the base plate.

[0041] By setting a boss and smoothly connecting the surface of the vane away from the base plate to the surface of the boss away from the base plate, the leakage detection connector is installed in the housing. The boss mainly bears the force between the mounting base and the housing, which helps to prevent the vane from being over-pressurized and allows for a long-term stable connection between the mounting base and the housing.

[0042] A second aspect of this application provides a battery, comprising: a housing; a battery cell disposed within the housing; and a leakage detection connector as described in the first aspect of this application, wherein the leakage detection connector is located within the housing, the seat connection portion of the mounting base is connected to the housing, and the connector housing of the connector body abuts against the bottom wall of the housing.

[0043] The battery of this application embodiment has the same advantages as the leakage detection connector of this application embodiment.

[0044] A third aspect of this application provides an electrical device including the battery described in the second aspect of this application, the battery being used to provide power to the electrical device.

[0045] The electrical equipment described in this application has the same advantages as the battery and leakage detection connector described in this application.

[0046] Other features and advantages of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0047] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0048] Figure 1 This is a schematic diagram of the structure of an electrical device according to some embodiments of this application.

[0049] Figure 2 This is an exploded structural diagram of a battery according to some embodiments of this application.

[0050] Figure 3 This is a schematic diagram of the combined structure of a battery leakage detection connector installed inside a housing, according to some embodiments of this application.

[0051] Figure 4 This is an exploded structural diagram of a leak detection connector according to some embodiments of the application.

[0052] Figure 5 for Figure 4 A schematic diagram with partial cross-section of the leakage detection connector of the embodiment shown.

[0053] Figure 6for Figure 4 A cross-sectional view of the leakage detection connector of the embodiment shown.

[0054] Figure 7 for Figure 4 The diagram shows a structural schematic of the assembly process of the various components of the connector body of the leakage detection connector in the embodiment shown.

[0055] Figure 8 for Figure 4 A cross-sectional view of the combined structure of the second housing portion, resistor, and potting compound of the leakage detection connector in the embodiment shown.

[0056] Figure 9 for Figure 4 A schematic diagram of the mounting portion of the leak detection connector in the illustrated embodiment.

[0057] Figure 10 for Figure 9 The mounting section shown is a view perpendicular to the first direction. Detailed Implementation

[0058] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to illustrate the principles of this application by way of example, but should not be used to limit the scope of this application, that is, this application is not limited to the described embodiments.

[0059] In the description of this application, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationships, 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 on this application. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. "Vertical" is not vertical in the strict sense, but within the allowable tolerance range. "Parallel" is not parallel in the strict sense, but within the allowable tolerance range.

[0060] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. It should also be noted in the description of this application 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 direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0061] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0062] In the process of formulating this application, the inventors discovered that the height of the base connection part and the detection port of the leakage detection connector of the related technology is fixed, which determines that the installation height between the base connection part and the bottom wall of the battery box is fixed. The leakage detection connector cannot absorb the product dimensional tolerance fluctuations, nor can it be compatible with the different battery requirements for the installation height of the leakage detection connector.

[0063] Based on this, such as Figures 1 to 10 As shown, this application provides a leak detection connector 30, a battery having the leak detection connector, and an electrical device having the battery.

[0064] The installation height between the leak detection connector and the bottom wall of the battery casing can be changed accordingly as the position of the connector body relative to the mounting base changes. This helps to absorb fluctuations in product dimensional tolerances and also facilitates compatibility with different battery types and their varying installation heights for the leak detection connector.

[0065] In the description of this application, the first direction Z refers to the vertical direction after the leakage detection connector 30 is installed inside the battery B. This first direction Z corresponds to... Figure 3 The up and down directions, and corresponding to Figures 4 to 9 The approximate left-right direction also corresponds to the length direction and installation height direction of the leak detection connector 30. The second direction X is perpendicular to the first direction Z, and this second direction X corresponds to... Figure 3 The left and right directions, and corresponding to Figures 4 to 9 The vertical direction also corresponds to the thickness direction of the leakage detection connector 30. The third direction Y is perpendicular to the first direction Z and the second direction X, and this third direction Y corresponds to... Figure 3 The front and back directions, and corresponding to Figures 4 to 9 The approximate front-to-back direction also corresponds to the width direction of the leakage detection connector 30.

[0066] Batteries are configured to provide electrical power to electrical devices. These devices can be, but are not limited to, mobile phones, portable devices, laptops, electric vehicles, electric cars, ships, spacecraft, electric toys, and power tools. For example, spacecraft include airplanes, rockets, space shuttles, and spacecraft. Electric toys include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys. Power tools include metal cutting power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers.

[0067] The battery in this application refers to a single physical module comprising one or more battery cells to provide higher voltage and capacity. For example, the battery mentioned in this application may include a battery module or a battery pack. A battery generally includes a housing for encapsulating one or more battery cells. The housing prevents liquids or other foreign matter from affecting the charging or discharging of the battery cells.

[0068] In this application, the battery cell may include lithium-ion batteries, sodium-ion batteries, sodium-lithium-ion batteries, lithium metal batteries, sodium metal batteries, lithium-sulfur batteries, magnesium-ion batteries, nickel-metal hydride batteries, nickel-cadmium batteries, lead-acid batteries, etc., and the embodiments of this application are not limited to these. The battery cell may be flat, cuboid, or other shapes, and the embodiments of this application are not limited to these. The battery cell is generally packaged as a square battery cell or a pouch battery cell, and the embodiments of this application are not limited to these.

[0069] like Figures 3 to 10 As shown, the leakage detection connector 30 provided in this embodiment includes a connector body 31, a signal line 32, a mounting base 33, and a connection structure 35. The connector body 31 includes a connector housing 311 and a leakage detection assembly 312. The connector housing 311 includes an accommodating space 311A ​​and a detection port 3111B disposed along a first direction Z at a first end of the connector housing 311 and communicating with the accommodating space 311A. The leakage detection assembly 312 is fixed within the accommodating space 311A ​​and includes a detection portion 31211 located at the detection port 3111B. The signal line 32 has a signal input end 321 and a signal output end 322. The signal input end 321 is electrically connected to the leakage detection assembly 312 and fixed within the accommodating space 311A. The signal output end 322 is located outside the accommodating space 311A ​​to output information detected by the leakage detection connector 30. The mounting base 33 includes a seat connection portion 333 for mounting the leakage detection connector 30. The connector body 31 is variably connected to the mounting base 33 in the first direction Z via the connection structure 35 relative to the mounting base 33.

[0070] Based on the leakage detection connector 30 of this application, since the connector body 31 is variably mounted on the mounting base 33 along the first direction Z, after the leakage detection connector is installed in the battery case, the connector housing 311 of the connector body 31 can be adapted to abut against the bottom wall 111 of the case 1 at the installation height. This allows the installation height between the seat connection part of the leakage detection connector 30 and the bottom wall of the battery case to change accordingly with the change in the position of the connector body 31 relative to the mounting base 33, thereby facilitating the absorption of product dimensional tolerance fluctuations and also facilitating compatibility with different battery installation height variations of the leakage detection connector.

[0071] Furthermore, since the leakage detection component 312 of the connector body 31 is fixed within the accommodating space 311A ​​of the connector housing 311 of the connector body 31, and the signal input end 321 of the signal line 32 is electrically connected to the leakage detection component 312 and fixed within the connector housing 311, the leakage detection component 312 itself and the connection point with the signal input end 321 of the signal line 32 are firmly connected and move synchronously with the connector housing 311. Therefore, the components of the leakage detection component 312, the signal input end 321 of the signal line 32, and the seat connection points of the leakage detection component 312 and the signal input end 321 of the signal line 32 are not affected by the positional change of the connector body 31 relative to the mounting base 33 along the first direction Z. This allows the detection component and the signal transmission component of the leakage detection connector 30 to maintain their relative positions and connection relationships stably for a long time, which is beneficial for the leakage detection connector 30 to perform its leakage detection function stably for a long time.

[0072] like Figures 3 to 10 As shown, in some embodiments of the leak detection connector 30, the leak detection assembly 312 includes two detection terminals 3121 and a resistor 3122. The detection terminal 3121 includes a detection section 31211 and a wiring section 31212 extending away from the detection section 31211 along a first direction Z. The resistor 3122 includes a resistor body 31221 and two pins 31222 connected to the resistor body 31221. The signal input terminals 321 of the two pins 31222 and the two signal lines 32 are respectively fixed and electrically connected to the corresponding detection terminals 3121 through the wiring sections 31212 of the two detection terminals 3121.

[0073] In this leak detection connector 30, leaks can be detected by measuring the change in resistance value at the signal input terminals 321 of the two signal lines 32. Before a leak occurs, the two detection terminals 3121 are in an open state, and the resistance between the two signal lines 32 is equal to the resistance value of resistor 3122. After a leak occurs, the two detection terminals 3121 are electrically connected through the coolant. The coolant has a certain resistance value, which causes a change in the resistance value at the signal input terminals 321 of the two signal lines 32. This change results in the resistance value of the coolant between the two detection terminals 3121 combined with the parallel resistance value of resistor 3122. Therefore, the electrical signal transmitted outward through the signal output terminals 322 of the two signal lines 32 can determine whether a leak has occurred. Thus, a leak detection component 312 can be formed using the two detection terminals 3121 and resistor 3122. The leak detection connector 30 has a simple circuit, reliable detection results, and low cost.

[0074] like Figures 3 to 10As shown, in some embodiments of the leakage detection connector 30, the detection terminal 3121 includes a positioning protrusion 31213; the connector housing 311 includes a terminal locking portion 31111. The terminal locking portion 31111 is disposed within the accommodating space 311A, and the terminal locking portion 31111 cooperates with the positioning protrusion 31213 to prevent the detection terminal 3121 from moving along the first direction Z from the first end of the connector housing 311 to the second end of the connector housing 311.

[0075] By providing a positioning protrusion 31213 on the detection terminal 3121 and a terminal locking part 31111 on the connector housing 311, the position of the detection terminal 3121 in the connector housing 311 along the first direction Z can be limited, preventing the detection part 31211 from retracting from the first end to the second end in the connector housing 311 and causing the leakage detection to be delayed.

[0076] like Figures 3 to 10 As shown, in some embodiments of the leak detection connector 30, the connector housing 311 includes a support platform 31121, which is disposed in the accommodating space 311A ​​and configured to support the connection of the signal inlet terminal 321, the pin 31222 and the wiring portion 31212.

[0077] A support platform 31121 is provided on the connector housing 311 to help maintain a stable connection between the signal inlet end 321, the pin 31222 and the wiring part 31212, thereby helping to prevent the leakage detection connector 30 from failing due to unstable connection between the signal inlet end 321, the pin 31222 and the wiring part 31212.

[0078] like Figures 3 to 10 As shown, in some embodiments of the leak detection connector 30, a portion of the leak detection assembly 312 is fixed within the receiving space 311A ​​by a potting compound 313 located within at least a portion of the space between the leak detection assembly 312 and the inner wall of the connector housing 311 that forms the receiving space 311A. The material of the potting compound 313 can be, for example, epoxy resin, polyurethane, etc.

[0079] A portion of the leakage detection component 312 is fixed within the accommodating space 311A ​​by the potting compound 313, which facilitates the secure installation of the leakage detection component 312 within the connector housing 311 and also helps prevent this portion of the leakage detection component 312 from being corroded and damaged by external liquids, thereby extending the lifespan of the leakage detection connector 30.

[0080] like Figures 3 to 10 As shown, in some embodiments of the leak detection connector 30, the signal line 32 located within the accommodating space 311A ​​is at least partially located within the potting compound 313.

[0081] By placing the signal line 32 at least partially within the potting compound 313, there is no relative movement between the signal input end 321 of the signal line 32 and the leakage detection component 312. This ensures a stable electrical connection between the signal input end 321 and the leakage detection component 312, thereby preventing the leakage detection connector 30 from failing due to an unstable connection between the signal input end 321 and the leakage detection component 312.

[0082] like Figures 3 to 10 As shown, in some embodiments of the leak detection connector 30, the leak detection connector 30 includes a force-applying portion 34. The force-applying portion 34 is configured to apply a force along a first direction Z from a second end of the connector body 31 to a first end of the connector body 31 to the connector body 31.

[0083] The leakage detection connector 30 is provided with a force application part 34, which helps to keep the connector housing 311 and the bottom wall of the space to be tested, such as the bottom wall 111 of the casing 1 of battery B, in an abutting state. This helps to prevent the detection part 31211 from moving from the first end to the second end inside the connector housing 311, which would cause the leakage detection to be delayed.

[0084] like Figures 3 to 10 As shown, in some embodiments of the leak detection connector 30, the connection structure 35 includes a guide portion 351 and a limiting portion 352. The guide portion 351 is configured to guide the connector body 31 to move relative to the mounting base 33 along a first direction Z, and the limiting portion 352 is configured to limit the extreme positions of the connector body 31 relative to the mounting base 33 along the first direction Z.

[0085] The leakage detection connector 30 is provided with a guide part 351, which helps to limit the movement path of the connector body 31 relative to the mounting base 33 along the first direction Z, thereby facilitating a good fit between the detection port 3111B and the bottom wall 11 of the battery B's casing 1, so that the detection part 31211 is in the optimal detection position after the leakage detection connector 30 is installed, thus facilitating timely detection of leakage.

[0086] The leakage detection connector 30 is provided with a limiting part 352, which can limit the extreme position of the connector body 31 relative to the mounting base 33 along the first direction Z, that is, limit the range of changes in the overall size of the leakage detection connector 30, which is beneficial to the selection and installation of the leakage detection connector 30.

[0087] like Figures 3 to 10 As shown, in some embodiments of the leak detection connector 30, the force application part 34 includes an elastic element 341 that acts on the connector body 31 and the mounting base 33.

[0088] The force application part 34 includes an elastic element 341 that acts on the connector body 31 and the mounting base 33. Without controlling the force application part 34, a continuous force is applied to the connector body 31 along the first direction Z from the second end to the first end. This facilitates the first end of the connector body 31, where the detection port 3111B is located, to maintain contact with the bottom wall 11 of the housing 1, thereby keeping the detection part 31211 in the optimal detection position for timely leakage detection.

[0089] like Figures 3 to 10 As shown, in some embodiments of the leak detection connector 30, the guide portion 351 includes a first guide structure 3511 and a second guide structure 3512 respectively disposed on the connector body 31 and the mounting base 33. The first guide structure 3511 and the second guide structure 3512 are movable relative to each other along the first direction Z.

[0090] The guide portion 351 includes a first guide structure 3511 and a second guide structure 3512 respectively disposed on the connector body 31 and the mounting base 33. The first guide structure 3511 and the second guide structure 3512 can be relatively movable and cooperated along the first direction Z. There is no need to specially set a guide structure outside the connector body 31 and the mounting base 33, so that the guide portion 351 is assembled into place along with the connector body 31 and the mounting base 33, which facilitates the assembly of the leakage detection connector 30. The guide portion 351 has a simple structure and stable guiding function.

[0091] like Figures 3 to 10 As shown, in some embodiments of the leak detection connector 30, the limiting portion 352 includes a first limiting unit 3521 and a second limiting unit 3522. The first limiting unit 3521 is configured to limit a first extreme position where the first end of the connector body 31 is closest to the first end of the mounting base 33 along the first direction Z. The second limiting unit 3522 is configured to limit a second extreme position where the first end of the connector body 31 is furthest from the first end of the mounting base 33 along the first direction Z.

[0092] The limiting part 352 includes a first limiting unit 3521 and a second limiting unit 3522. The first limiting unit 3521 and the second limiting unit 3522 respectively limit the corresponding extreme positions of the connector body 31 relative to the mounting base 33 along the first direction Z, thereby limiting the variable length range of the leakage detection connector 30.

[0093] like Figures 3 to 10 As shown, in some embodiments of the leakage detection connector 30, one of the first guide structure 3511 and the second guide structure 3512 includes a guide sleeve 35121 extending along the first direction Z, and the other includes a guide post 35111 extending along the first direction Z and located in the cavity 35121A of the guide sleeve 35121.

[0094] like Figures 3 to 10 As shown, in some embodiments of the leak detection connector 30, one of the first guide structure 3511 and the second guide structure 3512 includes a guide rail 35112 extending along the first direction Z, and the other includes a guide groove 35121B extending along the first direction Z and cooperating with the guide rail 35112.

[0095] The first guide structure 3511 and the second guide structure 3512 respectively include a guide sleeve 35121 and a guide post 35111. The first guide structure 3511 and the second guide structure 3512 respectively include a guide rail 35112 and a guide groove 35121B. Both can easily and conveniently guide the movement of the connector body 31 relative to the mounting base 33 along the first direction Z.

[0096] like Figures 3 to 10 As shown, in some embodiments of the leak detection connector 30, the elastic element 341 is located in the cavity 35121A of the guide sleeve 35121 and acts on the connector body 31 and the mounting base 33 by acting on the guide post 35111 and the guide sleeve 35121.

[0097] The elastic element 341 is located within the cavity 35121A of the guide sleeve 35121 and acts on the connector body 31 and the mounting base 33 through the guide post 35111 and the guide sleeve 35121, integrating the elastic element 341 with the guide part 351. This eliminates the need for a dedicated mounting structure for the elastic element 341, simplifying the structure of the leak detection connector 30 and facilitating its assembly. Furthermore, the location of the elastic element 341 within the guide sleeve 35121 ensures that it does not interfere with other components of the leak detection connector 30 or any other components outside the connector 30. This allows the elastic element 341 to freely expand and contract, facilitating changes in the position of the connector body 31 relative to the mounting base 33 and reducing insufficient position adjustment. Consequently, the leak detection connector 30 can detect leaks promptly.

[0098] like Figures 3 to 10 As shown, in some embodiments of the leak detection connector 30, the guide rail 35112 is disposed on one of the guide sleeve 35121 and the guide post 35111, and the guide groove 35121B is disposed on the other of the guide sleeve 35121 and the guide post 35111.

[0099] The guide rail 35112 is disposed on one of the guide sleeve 35121 and the guide post 35111, and the guide groove 35121B is disposed on the other of the guide sleeve 35121 and the guide post 35111. Both of these are conducive to integrating the movable pairs of the multiple guiding functional units of the guide part 351 together. On the one hand, this helps the guide part 351 to realize its guiding function more stably, and on the other hand, it helps to simplify the structure of the leakage detection connector 30 and facilitates the assembly of the leakage detection connector 30.

[0100] like Figures 3 to 10 As shown, in some embodiments of the leakage detection connector 30, the first limiting unit 3521 includes a first limiting structure 3521A and a second limiting structure 3521B, which are respectively disposed on the first guide structure 3511 and the second guide structure 3512.

[0101] like Figures 3 to 8 As shown, the second limiting unit 3522 includes a third limiting structure 3522A and a fourth limiting structure 3522B, which are respectively disposed on the opposing surfaces of the connector housing 311 and the mounting base 33.

[0102] The above-mentioned setting of the limiting part 352 facilitates the integration of the limiting part 352 with the guide part 351, or the limiting part 352 can be directly set on the opposing surfaces of the connector housing 311 and the mounting base 33. The cooperating limiting structures of the same limiting unit move relative to each other with the relative movement of the two guide structures of the guide part 351 or with the relative movement of the connector housing 311 and the mounting base 33, which is conducive to accurate positioning and simplifies the structure of the leakage detection connector 30, making it easier to assemble the leakage detection connector 30.

[0103] like Figures 3 to 8 As shown, in some embodiments of the leak detection connector 30, the connector housing 311 includes a first housing portion 3111 and a second housing portion 3112. The first housing portion 3111 has a first receiving portion 3111A, and the receiving space 311A ​​includes the first receiving portion 3111A. A detection port 3111B is formed at a first end of the first housing portion 3111 along a first direction Z and communicates with the first receiving portion 3111A. A portion of the leak detection assembly 312 is located within the first receiving portion 3111A. The second housing portion 3112 has a second receiving portion 3112A, and the receiving space 311A ​​includes the second receiving portion 3112A. The first end of the second housing portion 3112 along the first direction Z is fixedly assembled to the second end of the first housing portion 3111. A portion of the leak detection assembly 312 is located within the second receiving portion 3112A.

[0104] The connector housing 311 includes a first housing part 3111 and a second housing part 3112 that are assembled together, which facilitates the installation of the leakage detection component 312 and the signal input terminal 321 inside the connector housing 311 after assembly.

[0105] like Figures 3 to 8 As shown, in some embodiments of the leak detection connector 30, a portion of the leak detection component 312 is fixed to the second receiving portion 3112A by a potting compound 313 located in at least a portion of the space between the leak detection component 312 and the inner wall of the second housing portion 3112 for forming the second receiving portion 3112A.

[0106] By using potting compound 313 to fix a portion of the leakage detection component 312 into the second receiving portion 3112A of the second housing portion 3112, it is beneficial to firmly fix a portion of the leakage detection component 312 into the connector housing 311, and to prevent the portion of the leakage detection component 312 from being corroded and damaged by external liquids. It is also beneficial to assemble the first housing portion 3111, the second housing portion 3112, the leakage detection component 312, and the signal line 32, and then inject potting compound 313 between the leakage detection component 312 and the inner wall of the second housing portion 3112 that forms the second receiving portion 3112A. This allows the potting compound 313 to form a better seal for the electrical components in the second receiving portion 3112A, and helps to prevent foreign objects or other liquids from flowing into the detection portion 31211 through the side of the first receiving portion 3111A away from the detection port 3111B, thereby avoiding false detections.

[0107] like Figures 3 to 8 As shown, in some embodiments of the leak detection connector 30, the leak detection assembly 312 includes two detection terminals 3121 and a resistor 3122. The detection terminal 3121 includes a detection portion 31211 and a wiring portion 31212 extending away from the detection portion 31211 along a first direction Z. The resistor 3122 includes a resistor body 31221 and two pins 31222 connected to the resistor body 31221. The signal input terminals 321 of the two pins 31222 and the two signal lines 32 are respectively fixed and electrically connected to the corresponding detection terminals 3121 through the wiring portions 31212 of the two detection terminals 3121. The resistor body 31221 of the resistor 3122 is embedded in the potting compound 313 and fixed within the second receiving portion 3112A.

[0108] The resistor body 31221 is fixed in the second receiving part 3112A by being embedded in the potting compound 313, which facilitates the fixing of the resistor 3122 and the sealing and protection of the resistor body 31221.

[0109] like Figures 3 to 10As shown, in some embodiments of the leak detection connector 30, the first end of the second housing portion 3112 is fitted with the second end of the first housing portion 3111 and connected by a snap-fit ​​connection.

[0110] The first end of the second housing part 3112 is fitted onto the second end of the first housing part 3111 and is connected by a snap-fit ​​part, which facilitates the quick and stable assembly of the second housing part 3112 and the first housing part 3111 together.

[0111] like Figure 2 As shown, in some embodiments of the leak detection connector 30, the mounting base 33 includes a base plate 331, and the connector body 31 and the base body connection portion 333 are located on both sides of the base plate 331 along a second direction X perpendicular to the first direction Z. The base body connection portion 333 includes a boss 3331, a latch 3332, and two flaps 3333. The boss 3331 protrudes from the base plate 331 toward the side away from the connector body 31. The latch 3332 is disposed on the side of the boss 3331 away from the base plate 331. The two flaps 3333 are respectively disposed at both ends of the boss 3331 along a third direction Y, which is perpendicular to the first direction Z and the second direction X. The flaps 3333 extend from the boss along the third direction Y toward the side away from the boss 3331 and are inclined along the second direction X toward the latch 3332. The surface of the wing 3333 away from the seat plate 331 is smoothly connected to the surface of the boss 3331 away from the seat plate 331.

[0112] By setting the boss 3331 and making the surface of the wing 3333 away from the seat plate 331 smoothly connected to the surface of the boss 3331 away from the seat plate 331, after the leakage detection connector 30 is installed in the housing 11, the boss 3331 mainly bears the force between the mounting base 33 and the housing 11, which helps to prevent the wing 3333 from being over-pressurized and enables a long-term stable connection between the mounting base 33 and the housing 11.

[0113] like Figure 3 and Figures 1 to 3 As shown, the battery B provided in this embodiment includes a housing 1, a battery cell 20, and a leakage detection connector 30 according to this embodiment. The battery cell 20 is disposed inside the housing 1. The leakage detection connector 30 is located inside the housing 1, and the seat connection portion 333 of the mounting base 33 is connected to the housing 1. The connector housing 311 of the connector body 31 abuts against the bottom wall 111 of the housing 1. The battery of this embodiment has the same advantages as the leakage detection connector of this embodiment.

[0114] like Figures 1 to 10As shown, the electrical device provided in this application embodiment includes the battery B of this application embodiment, which is used to provide power to the electrical device. The electrical device of this application has the same advantages as the battery and leakage detection connector of this application.

[0115] The following combination Figure 1 The present application will provide a more detailed description of a leak detection connector 30, a battery B having the leak detection connector 30, and an electrical device having the battery B, according to some embodiments of the present application.

[0116] Please refer to Figure 1 . Figure 2 This is a schematic diagram of the structure of an electrical device—vehicle D—provided in some embodiments of this application. Vehicle D can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended vehicles, etc. Figure 2 The vehicle D has a battery B installed inside it. The battery B can be located at the bottom, front, or rear of the vehicle D. The battery B can be used to power the vehicle D, for example, it can serve as the operating power source for the vehicle D.

[0117] In some embodiments of this application, battery B can not only serve as the operating power source for vehicle D, but also as the driving power source for vehicle D, replacing or partially replacing fuel or natural gas to provide driving power for vehicle D.

[0118] Please refer to Figure 3 and Figure 2 . Figure 3 This is an exploded structural diagram of battery B provided in some embodiments of this application. Battery B is in the form of a battery pack, including a housing 1 and individual battery cells 20 housed within the housing 1. Figure 2 This is a schematic diagram of the combined structure of the leakage detection connector 30 in battery B installed in the housing 1 in some embodiments of this application.

[0119] like Figure 2 As shown, the housing 1 includes a housing shell 11 and a cover 12 fastened to the housing shell 11. The housing 1 provides a space for housing the battery cells 20. In the above embodiments, the housing 1 is generally rectangular. In embodiments not shown, the housing 1 may also be other shapes, such as a cylinder. In some embodiments, the housing may be part of the vehicle's chassis structure. For example, a portion of the housing may be at least a part of the vehicle's floor, or a portion of the housing may be at least a part of the vehicle's crossbeams and longitudinal beams.

[0120] A single battery cell mainly consists of a cell, a casing, and an end cap assembly. The cell may include one, two, or more electrode assemblies. The cell is encapsulated within the casing's housing space by the end caps of the end cap assembly, and electrolyte is added to this housing space. The electrode assemblies are located within the casing's housing space. The electrode assemblies are the components within the battery cell where electrochemical reactions occur.

[0121] In battery B, there are multiple battery cells 20, which can be connected in series, parallel, or in a mixed manner. A mixed connection means that multiple battery cells 20 are connected in both series and parallel. Multiple battery cells 20 can be directly connected in series, parallel, or in a mixed manner, and then the whole assembly of multiple battery cells 20 is housed in the casing 1.

[0122] like Figure 3 As shown, battery B can be composed of multiple battery cells 20 connected in series, parallel, or in a mixed configuration to form battery pack 2. Battery pack 2 can be in the form of a battery module. Multiple battery packs 2 can then be connected in series, parallel, or in a mixed configuration to form a whole and housed within housing 1. Battery B may also include other structures; for example, battery B may also include a busbar component for realizing electrical connection between multiple battery cells 20.

[0123] In battery B, to ensure the safety and performance of the battery cells 20, a heat exchange component (not shown) is installed inside the battery casing. The heat exchange component contains coolant to exchange heat between the heat exchange component and the battery cells 20, thereby improving the safety and reliability of battery B.

[0124] like Figures 4 to 10 As shown, in this embodiment, the leakage detection connector 30 is installed inside the housing 11 of the housing 1. The housing 11 includes a bottom wall 111 and a side wall 112. An installation port is provided on the side wall 112. The seat connection portion 333 of the mounting portion 33 of the leakage detection connector 30 includes a snap fastener 3332. The snap fastener 3332 extends into the installation port and abuts the first end of the leakage detection connector 30 with the detection port 3111B against the bottom wall 111 to realize the installation of the leakage detection connector 30. After installation, the detection portion 31211 of the leakage detection component 312 of the leakage detection connector 30 communicates with the internal space of the housing 1 through the detection port 3111B.

[0125] In embodiments not shown, the leak detection connector 30 can be installed in other parts of the housing 1, such as on the partition beam of the housing 1 or on a mounting base specifically provided for the leak detection connector 30.

[0126] After the coolant in battery B leaks inside the housing 1, the coolant can enter the bottom of the accommodating space 311A ​​of the connector housing 311 through the detection port 3111B and come into contact with the detection part 31211 of the leakage detection component 312 of the leakage detection connector 30. Since the coolant has a certain degree of conductivity, the detection part 31211 can detect the change in conductivity caused by the coolant, thereby detecting the presence of coolant and determining whether a leak has occurred. The signal input end 321 of the signal line 32 is electrically connected to the leakage detection component 312 and fixed inside the connector body 31. The signal output end 322 of the signal line 32 transmits the information detected by the leakage detection component 312 to the outside of the leakage detection connector 30. The signal line 32 can transmit the information to the Battery Management System (BMS). The BMS (not shown) analyzes the information and takes appropriate action, such as issuing an alarm, stopping battery operation, or draining the battery.

[0127] like Figures 3 to 8 As shown, the leakage detection connector 30 includes a connector body 31, a signal line 32, a mounting base 33, and a force application part 34.

[0128] The connector body 31 includes a connector housing 311, a leakage detection component 312, and a potting compound 313.

[0129] The connector housing 311 includes a receiving space 311A ​​and has a detection port 3111B disposed at a first end of the connector housing 311 along a first direction Z and communicating with the receiving space 311A. The leakage detection assembly 312 is fixed in the receiving space 311A ​​by a potting compound 313 and includes a detection part 31211 located at the detection port 3111B.

[0130] The potting compound 313 is made of epoxy resin. Epoxy resin has a low water absorption rate, which helps reduce the probability of ion migration on the pins 31221 of resistor 3122 under the influence of water vapor and electric field, thereby helping to maintain the reliability of the leakage detection connector 30.

[0131] The signal line 32 has a signal input terminal 321 and a signal output terminal 322. The signal input terminal 321 is electrically connected to the leakage detection assembly 312 and is fixed within the accommodating space 311A. The signal output terminal 322 is located outside the accommodating space 311A ​​to output the information detected by the leakage detection connector 30.

[0132] Mounting base 33 includes a seat connection portion 333 for mounting a leakage detection connector 30. The connector body 31 is variably mounted on the mounting base 33 in the first direction Z relative to the mounting base 33, such that the connector housing 311 of the connector body 31 abuts against the bottom wall 111 of the housing 1.

[0133] The connector housing 311 includes a first housing portion 3111 and a second housing portion 3112. The first housing portion 3111 has a first receiving portion 3111A, and the receiving space 311A ​​includes the first receiving portion 3111A. A detection port 3111B is formed at a first end of the first housing portion 3111 along a first direction Z and communicates with the first receiving portion 3111A. The second housing portion 3112 has a second receiving portion 3112A, and the receiving space 311A ​​includes the second receiving portion 3112A. The first end of the second housing portion 3112 along the first direction Z is fixedly assembled to the second end of the first housing portion 3111.

[0134] The first end of the second housing part 3112 is fitted onto the second end of the first housing part 3111 and is connected by a snap-fit ​​connection.

[0135] like Figures 3 to 8 As shown, along the first direction Z, the second end of the first housing portion 3111 is fitted inside the first end of the second housing portion 3112. The snap-fit ​​portion includes a first snap-fit ​​unit and a second snap-fit ​​unit. The first snap-fit ​​unit includes a first angular snap-fit ​​surface 3111C disposed on the first housing portion 3111 and a second angular snap-fit ​​surface 3112C disposed on the second housing portion 3112. The first angular snap-fit ​​surface 3111C and the second angular snap-fit ​​surface 3112C abut against each other. The second snap-fit ​​unit and the first snap-fit ​​unit are staggered along the first direction Z and in the second direction X perpendicular to the first direction. The second snap-fit ​​unit includes a first triangular snap-fit ​​surface 3111D disposed on the first housing portion 3111 and a fourth angular snap-fit ​​surface 3112D disposed on the second housing portion 3112. The first triangular snap-fit ​​surface 3111D and the fourth angular snap-fit ​​surface 3112D abut against each other. Thus, after the second end of the first housing part 3111 is fitted into the first end of the second housing part 3112 and assembled in place, the first angular snap-fit ​​surface 3111C of the first snap-fit ​​unit and the second angular snap-fit ​​surface 3112C complete the abutment engagement, and the third triangular snap-fit ​​surface 3111D of the second snap-fit ​​unit and the fourth angular snap-fit ​​surface 3112D complete the abutment engagement, thereby realizing the snap-fit ​​connection between the first housing part 3111 and the second housing part 3112.

[0136] like Figures 3 to 10As shown, the leakage detection assembly 312 includes two detection terminals 3121 and a resistor 3122. The detection terminal 3121 includes a detection part 31211 and a wiring part 31212 extending away from the detection part 31211 along a first direction Z. The resistor 3122 includes a resistor body 31221 and two pins 31222 connected to the resistor body 31221. The signal input terminals 321 of the two pins 31222 and the two signal lines 32 are respectively fixed and electrically connected to the corresponding detection terminals 3121 through the wiring parts 31212 of the two detection terminals 3121. A portion of the resistor body 31221 of the resistor 3122 and a portion of the signal line 32 located within the second accommodating portion 3112A are fixed within the second accommodating portion 3112A by a potting compound 313 located within at least a portion of the space between the leakage detection assembly 312 and the inner wall of the second housing portion 3112 for forming the second accommodating portion 3112A. The second housing portion 3112 is provided with a filling port for injecting a material to form the injection colloid 313. The filling port is, for example, an opening on the side of the seat plate 331 away from the mounting base 33.

[0137] The signal input terminals 321 of the two pins 31222 and the two signal lines 32 are fixed and electrically connected to the corresponding detection terminals 3121 through the wiring portions 31212 of the two detection terminals 3121. The first end of the second housing portion 3112 of the connector housing 311 includes a support platform 31121. The support platform 31121 is disposed at the junction of the first accommodating portion 3111A and the second accommodating portion 3112A within the accommodating space 311A, and is configured to support the connection point of the signal input terminal 321, the pins 31222 and the wiring portions 31212.

[0138] Two detection terminals 3121 extend along the first direction Z, with the portion of each terminal other than the wiring portion 31212 located within the first receiving portion 3111A. The first end away from the wiring portion 31212 is the detection portion 31211. The detection portion 31211 is located at the detection port 3111B at the first end of the first housing portion 3111. The detection terminal 3121 includes a positioning protrusion 31213 disposed along the first direction Z between the detection portion 31211 and the wiring portion 31212. The first housing portion 3111 includes a terminal locking portion 31111 disposed within the first receiving portion 3111A. The terminal locking portion 31111 cooperates with the positioning protrusion 31213 to prevent the detection terminal 3121 from moving along the first direction Z from the first end of the connector housing 311 to the second end of the connector housing 311.

[0139] The detection port 3111B has openings on both its end face and side. The end face opening is designed so that after the first end of the connector housing 311 abuts against the bottom wall 111 of the housing 1, the side opening is as close as possible to the bottom wall 111 of the housing 1. When battery B leaks, the coolant flowing to the bottom wall 111 will enter the detection port 3111B of the receiving space 311A ​​of the connector housing 311 through the side opening and be detected by the detection unit 31211.

[0140] The leakage detection connector 30 includes a guide portion 351 and a limiting portion 352 disposed on the connector housing 311 and the mounting portion 33. The guide portion 351 is configured to guide the connector body 31 to move relative to the mounting base 33 along a first direction Z. The limiting portion 352 is configured to limit the extreme positions of the connector body 31 relative to the mounting base 33 along the first direction Z.

[0141] The guide portion 351 includes a first guide structure 3511 and a second guide structure 3512 respectively disposed on the connector body 31 and the mounting base 33, and the first guide structure 3511 and the second guide structure 3512 slide in a first direction Z.

[0142] The first guide structure 3511 includes a guide post 35111 extending along a first direction Z and a guide rail 35112 connected to the guide post 35111 and the guide rail 35112. The plate-type guide rail 35112 is connected between the first housing portions 3111 of the connector housing 311. The second guide structure 3512 includes a guide sleeve 35121 extending along the first direction Z and a guide groove 35121B. The guide groove 35121B is disposed on the side wall of the guide sleeve 35121. The guide post 35111 is slidably disposed in the cavity 35121A of the guide sleeve 35121, and the guide rail 35112 is slidably disposed in the guide groove 35121B.

[0143] like ​ As shown, in some embodiments of the leak detection connector 30, the limiting portion 352 includes a first limiting unit 3521 and a second limiting unit 3522. The first limiting unit 3521 is configured to limit a first extreme position where the first end of the connector body 31 is closest to the first end of the mounting base 33 along the first direction Z. The second limiting unit 3522 is configured to limit a second extreme position where the first end of the connector body 31 is furthest from the first end of the mounting base 33 along the first direction Z.

[0144] The first limiting unit 3521 includes a first limiting structure 3521A and a second limiting structure 3521B. The first limiting structure 3521A is disposed on the end face of the second end of the guide rail 35112 along the first direction Z. The second limiting structure 3521B is disposed on the guide sleeve 35121, specifically, on the groove wall of the second end of the guide groove 35121B along the first direction Z.

[0145] The second limiting unit 3522 includes a third limiting structure 3522A and a fourth limiting structure 3522B. The third limiting structure 3522A is disposed on the surface of the second housing portion 3112 of the connector housing 311 facing the seat plate 331 of the mounting base 33. The fourth limiting structure 3522B is disposed on the surface of the seat plate 331 of the mounting base 33 facing the second housing portion 3112.

[0146] Two first limiting units 3521 are arranged at intervals along the third direction Y. Two second limiting units 3522 are arranged at intervals along the third direction Y.

[0147] The force-applying part 34 is configured to apply a force along a first direction Z from the second end of the connector body 31 to the first end of the connector body 31 to maintain the connector housing 311 abutting against the bottom wall 111 of the housing 1. The elastic element 341 acts on the connector body 31 and the mounting base 33 by acting on the first guide structure 3511 and the second guide structure 3512. The force-applying part 34 includes the elastic element 341 acting on the connector body 31 and the mounting base 33. In this embodiment, the elastic element 341 is located within the cavity 35121A of the guide sleeve 35121 and acts on the guide sleeve 35121 and the guide post 35111, respectively.

[0148] Mounting base 33 includes base plate 331 and the aforementioned base body connecting portion 333. Connector body 31 and base body connecting portion 333 are located on both sides of base plate 331 along a second direction X perpendicular to the first direction Z.

[0149] In the third direction Y, a guide sleeve 35121 is connected to each side of the base plate 331. The side of the guide sleeve 35121 that connects to the base plate 331 is flush with the base plate 331. A guide groove 35121 is formed on the side wall of the guide sleeve 35121 facing the base plate 331. A guide rail 35112 is connected between the guide post 35111 and the first housing part 3111. The guide rail 35112 is located in the guide groove 35121, thereby limiting the connector housing 311 relative to the mounting base 33 in the second direction X. The outer surface 35121S of the side wall of the guide sleeve 35121 facing the seat plate 331 and the outer surface 3112S of the second housing part 3112 also slide in fit, that is, the two guide sleeves 35121 and the seat plate 331 form a housing mounting space 33A, and the second housing part 3112 is installed in the housing mounting space 33A, so that the two guide sleeves 35121 limit the connector housing 311 relative to the mounting seat 33 in the third direction Y.

[0150] Correspondingly, each side of the connector housing 311 along the third direction Y is also provided with a guide post 35111 and a guide rail 35112. The force application part 34 includes two elastic elements 341 respectively installed in the cavities 35121A of the two guide sleeves 35121. The elastic elements 341 are helical springs.

[0151] Each elastic element 341 has two ends abutting against the bottom wall of the guide sleeve 35121 and the end face of the second end of the guide post 35111 along the first direction Z.

[0152] The seat connection portion 333 includes a boss 3331, a latch 3332, and two flaps 3333. The boss 3331 protrudes from the seat plate 331 toward the side away from the connector body 31. The latch 3332 is disposed on the side of the boss 3331 away from the seat plate 331. The two flaps 3333 are respectively disposed at both ends of the boss 3331 along a third direction Y, which is perpendicular to the first direction Z and the second direction X. Along the first direction Z, the size of the boss 3331 is larger than the size of the flaps 3333. In addition, along the first direction Z, both ends of the boss 3331 are located outside the two ends of the flaps 3333. Along the first direction Z, both ends of the boss 3331 can be flush with the two ends of the seat plate 331. The flaps 3333 extend from the boss 3331 along the third direction Y toward the side away from the boss and are inclined along the second direction X toward the latch 3332. The surface of the flap 3333 away from the seat plate 331 is smoothly connected to the surface of the boss 3331 away from the seat plate 331. The latch 3332 can be, for example, an aircraft latch.

[0153] The first housing portion 3111 can form an integral structure with the guide post 35111 and guide rail 35112 of the connecting structure 35 disposed thereon, for example, integrally injection molded into a lower housing. The second housing portion 3112 can form an integral structure with the third limiting structure 3522A of the connecting structure 35 disposed thereon, for example, integrally injection molded into an upper housing. The mounting base 33 forms an integral structure with the two guide sleeves 35121 and the fourth limiting structure 3522B of the connecting structure 35 disposed thereon, for example, integrally injection molded into a mounting housing.

[0154] The installation sequence of the leakage detection connector 30 in this embodiment can be as follows:

[0155] The pins 31221 of resistor 3122, the stripped signal input terminal 321 of signal line 32, and the wiring portion 31212 of detection terminal 3121 are crimped together. After crimping, resistor 3122 is placed in the second receiving portion 3112A of second housing portion 3112, and the connection between pins 31221, signal input terminal 321 and wiring portion 31212 is locked in the groove at the first end of second housing portion 3112 and placed on support platform 31121.

[0156] Then, the detection part 31211 of the detection terminal 3121 extends from the second end of the first housing part 3111 along the first direction Z into the first receiving part 3111A until the first housing part 3111 and the second housing part 3112 are snapped together, and the terminal locking part 31111 of the detection terminal 3121 engages with the positioning protrusion 31213 of the first housing part 3111.

[0157] Helical springs, serving as elastic elements, are installed in the cavity 35121A of the guide sleeve 35121. The guide post 35111 and guide rail 35112, which are provided on the first housing part 3111, are aligned with the cavity 35121A and guide groove 35121B of the guide sleeve 35121, which are integrally connected to the mounting base 333. The second housing part 3112 slides from the first end to the second end of the mounting base 33 along the first direction Z and is pushed into the housing mounting space 33A formed by the two guide sleeves 35121 and the base plate 331. The third limiting structure 3522A passes over the fourth limiting structure 3522B, and the connector body 31 and the mounting base 33 are assembled together.

[0158] Epoxy resin is injected into the space between the second housing 3112 and the electrical components therein through the potting port on the side of the second housing 3112 away from the base plate 331 to form a potting compound 313. This seals and fixes the resistor body 31221 and part of the pins 31222 of the resistor 3122 inside the second receiving part 3112B. At the same time, part of the signal line 32 inside the second receiving part 3112B is also wrapped in the potting compound 313, so that the connection between the pins 31221, the signal input terminal 321 and the wiring part 31212 is not easily affected by external forces.

[0159] In this embodiment, the leak detection connector 30 is installed inside the housing 1 of battery B, with the detection port 3111B of the connector housing 311 abutting against the bottom wall 111 of the housing 1. When battery B is in normal use and there is no leakage, there is no coolant between the two detection parts 31211 of the leak detection connector 30, forming an open circuit. The signal transmitted from the signal lead-out end 322 of the signal line 32 remains unchanged. Upon receiving this signal, the battery management system determines that battery B has not leaked. When battery B leaks, the coolant flowing to the bottom wall 111 of the housing 1 enters the detection port 3111B, causing the two detection parts 31211 of the leak detection connector 30 to form a circuit due to the presence of coolant. The signal transmitted from the signal lead-out end 322 of the signal line 32 changes. Upon receiving this signal, the battery management system determines that battery B has leaked and transmits a leak signal to the on-board diagnostic system. The on-board diagnostic system issues an alarm, indicating that battery B has leaked and needs to be dealt with promptly.

[0160] In embodiments not shown, the leak detection connector 30 can also be installed in other environments where leak detection is required, such as inside a high-voltage distribution box.

[0161] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and not to limit them; although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this application or equivalent substitutions can be made to some technical features, all of which should be covered within the scope of the technical solutions claimed in this application.

Claims

1. A leakage detection connector (30), characterized in that, include: The connector body (31) includes a connector housing (311) and a leakage detection assembly (312). The connector housing (311) includes a receiving space (311A) and has a detection port (3111B) disposed at a first end of the connector housing (311) along a first direction (Z) and communicating with the receiving space (311A). The leakage detection assembly (312) is fixed in the receiving space (311A) and includes a detection part (31211) located at the detection port (3111B). The signal line (32) has a signal input end (321) and a signal output end (322). The signal input end (321) is electrically connected to the leakage detection component (312) and fixed in the accommodating space (311A). The signal output end (322) is located outside the accommodating space (311A) to output the information detected by the leakage detection connector (30) to the outside. Mounting base (33), including a seat connection portion (333) for mounting the leakage detection connector (30); and The connector body (31) is variably connected to the mounting base (33) in the first direction (Z) via the connection structure (35) relative to the mounting base (33).

2. The leakage detection connector (30) according to claim 1, characterized in that, The leakage detection component (312) includes: Two detection terminals (3121), each detection terminal (3121) including the detection section (31211) and a wiring section (31212) extending away from the detection section (31211) along the first direction (Z); and The resistor (3122) includes a resistor body (31221) and two pins (31222) connected to the resistor body (31221). The two pins (31222) and the signal input terminals (321) of the two signal lines (32) are fixed and electrically connected to the corresponding detection terminals (3121) through the wiring portions (31212) of the two detection terminals (3121).

3. The leakage detection connector (30) according to claim 2, characterized in that, The detection terminal (3121) includes a positioning protrusion (31213), and the connector housing (311) includes a terminal locking portion (31111). The terminal locking portion (31111) is disposed within the accommodating space (311A) and cooperates with the positioning protrusion (31213) to prevent the detection terminal (3121) from moving along the first direction (Z) from the first end of the connector housing (311) to the second end of the connector housing (311); and / or The connector housing (311) includes a support platform (31121) disposed within the accommodating space (311A) and configured to support the connection of the signal inlet (321), the pin (31222) and the wiring portion (31212).

4. The leakage detection connector (30) according to claim 1, characterized in that, A portion of the leakage detection assembly (312) is secured within the accommodating space (311A) by a potting compound (313) located in at least a portion of the space between the leakage detection assembly (312) and the inner wall of the connector housing (311) for forming the accommodating space (311A).

5. The leakage detection connector (30) according to claim 4, characterized in that, The signal line (32) located within the accommodating space (311A) is at least partially located within the potting compound (313).

6. The leakage detection connector (30) according to claim 1, characterized in that, The leakage detection connector (30) includes a force-applying part (34) configured to apply a force along the first direction (Z) from the second end of the connector body (31) to the first end of the connector body (31) to the connector body (31); and / or The connection structure (35) includes a guide (351) and a limiting part (352). The guide (351) is configured to guide the connector body (31) to move relative to the mounting base (33) along the first direction (Z). The limiting part (352) is configured to limit the extreme position of the connector body (31) relative to the mounting base (33) along the first direction (Z).

7. The leakage detection connector (30) according to claim 6, characterized in that, The force-applying part (34) includes an elastic element (341) acting on the connector body (31) and the mounting base (33); and / or The guide portion (351) includes a first guide structure (3511) and a second guide structure (3512) respectively disposed on the connector body (31) and the mounting base (33), wherein the first guide structure (3511) and the second guide structure (3512) are relatively movable and engaged along the first direction (Z); and / or The limiting part (352) includes a first limiting unit (3521) and a second limiting unit (3522), wherein the first limiting unit (3521) is configured to limit the first end of the connector body (31) to a first extreme position when it is closest to the first end of the mounting base (33) along the first direction (Z), and the second limiting unit (3522) is configured to limit the first end of the connector body (31) to a second extreme position when it is furthest from the first end of the mounting base (33) along the first direction (Z).

8. The leakage detection connector (30) according to claim 7, characterized in that, One of the first guide structure (3511) and the second guide structure (3512) includes a guide sleeve (35121) extending along the first direction (Z), and the other includes a guide post (35111) extending along the first direction (Z) and located within a cavity (35121A) of the guide sleeve (35121); and / or One of the first guide structure (3511) and the second guide structure (3512) includes a guide rail (35112) extending along the first direction (Z), and the other includes a guide groove (35121B) extending along the first direction (Z) and cooperating with the guide rail (35112).

9. The leakage detection connector (30) according to claim 8, characterized in that, The elastic element (341) is located within the cavity (35121A) of the guide sleeve (35121) and acts on the connector body (31) and the mounting base (33) by acting on the guide post (35111) and the guide sleeve (35121); and / or The guide rail (35112) is disposed on one of the guide sleeve (35121) and the guide post (35111), and the guide groove (35121B) is disposed on the other of the guide sleeve (35121) and the guide post (35111).

10. The leakage detection connector (30) according to claim 7, characterized in that, The first limiting unit (3521) includes a first limiting structure (3521A) and a second limiting structure (3521B), wherein the first limiting structure (3521A) and the second limiting structure (3521B) are respectively disposed on the first guide structure (3511) and the second guide structure (3512); and / or The second limiting unit (3522) includes a third limiting structure (3522A) and a fourth limiting structure (3522B), which are respectively disposed on the opposing surfaces of the connector housing (311) and the mounting base (33).

11. The leakage detection connector (30) according to any one of claims 1 to 10, characterized in that, The connector housing (311) includes: A first housing portion (3111) has a first receiving portion (3111A), the receiving space (311A) includes the first receiving portion (3111A), the detection port (3111B) is formed at a first end of the first housing portion (3111) along the first direction (Z) and communicates with the first receiving portion (3111A), and a portion of the leakage detection assembly (312) is located within the first receiving portion (3111A); and The second housing portion (3112) has a second receiving portion (3112A), the receiving space (311A) includes the second receiving portion (3112A), the first end of the second housing portion (3112) is fixedly assembled to the second end of the first housing portion (3111) along the first direction (Z), and part of the leakage detection component (312) is located in the second receiving portion (3112A).

12. The leakage detection connector (30) according to claim 11, characterized in that, A portion of the leakage detection assembly (312) is fixed within the second receiving portion (3112A) by a potting compound (313) located in at least a portion of the space between the leakage detection assembly (312) and the inner wall of the second housing portion (3112) for forming the second receiving portion (3112A).

13. The leakage detection connector (30) according to claim 12, characterized in that, The leakage detection assembly (312) includes two detection terminals (3121) and a resistor (3122). The detection terminal (3121) includes a detection part (31211) and a wiring part (31212) located away from the detection part (31211) along the first direction (Z). The resistor (3122) includes a resistor body (31221) and two pins (31222) connected to the resistor body (31221). The two pins (31222) and the signal input terminals (321) of the two signal lines (32) are respectively fixed and electrically connected to the corresponding detection terminals (3121) through the wiring parts (31212) of the two detection terminals (3121). The resistor body (31221) is embedded in the potting compound (313) and fixed in the second receiving portion (3112A).

14. The leakage detection connector (30) according to claim 11, characterized in that, The first end of the second housing part (3112) is fitted onto the second end of the first housing part (3111) and connected by a snap-fit ​​part.

15. The leakage detection connector (30) according to any one of claims 1 to 10, characterized in that, The mounting base (33) includes a base plate (331), and the connector body (31) and the base body connection portion (333) are located on both sides of the base plate (331) along a second direction (X) perpendicular to the first direction (Z). The base body connection portion (333) includes: A boss (3331) is provided on the base plate (331) protruding from the base plate (331) toward the side away from the connector body (31); A latch (3332) is provided on the side of the boss (3331) away from the seat plate (331); and Two winglets (3333) are respectively disposed at both ends of the boss (3331) along a third direction (Y), the third direction (Y) being perpendicular to the first direction (Z) and the second direction (X). The winglets (3333) extend from the boss (3331) along the third direction (Y) toward the side away from the boss (3331) and are inclined along the second direction (X) toward the side of the latch (3332). The surface of the winglet (3333) away from the seat plate (331) is smoothly connected to the surface of the boss (3331) away from the seat plate (331).

16. A battery, characterized in that, include: Box (1); A battery cell (20) is disposed inside the housing (1); and According to any one of claims 1 to 15, the leakage detection connector (30) is located inside the housing (1), the seat connection part (333) of the mounting base (33) is connected to the housing (1), and the connector housing (311) of the connector body (31) abuts against the bottom wall (111) of the housing (1).

17. An electrical appliance, characterized in that, Includes the battery of claim 16, the battery being used to provide power to the electrical device.

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