Connection systems, connectors and electrical devices

Abstract

This application provides a connection system, connector, and electrical device, including a first connector. The first connector includes a carrier and a first terminal. The first terminal is disposed on a first side of the carrier, with the first side facing the connection direction of the first connector. The first terminal includes a first terminal connection portion, a fusible portion, and an electrical connection end. The fusible portion electrically connects the first terminal connection portion and the electrical connection end. The electrical connection end is configured to be electrically connected to an electrical component. The fusible portion is configured to melt when the current passing through it is greater than or equal to a preset threshold. The first terminal is detachably connected to the carrier, thereby improving the reliability of the battery device.

Description

Technical Field

[0001] This application relates to the field of batteries, and more specifically, to a connection system, connector, and electrical device. Background Technology

[0002] Current battery devices typically use fuses for overcurrent protection, thus protecting the battery device and the electrical components of the power supply. However, replacing a blown fuse may require disassembling the battery device, which is inconvenient and affects the reliability of the battery device.

[0003] Therefore, improving the reliability of battery devices has become an urgent problem to be solved. Utility Model Content

[0004] This application provides a connection system, connector, and power device that can improve the reliability of battery devices.

[0005] In a first aspect, a connection system is provided, including a first connector. The first connector includes a carrier and a first terminal. The first terminal is disposed on a first side of the carrier, with the first side facing the connection direction of the first connector. The first terminal includes a first terminal connection portion, a fusible portion, and an electrical connection end. The fusible portion electrically connects the first terminal connection portion and the electrical connection end. The electrical connection end is configured to be electrically connected to an electrical component. The fusible portion is configured to melt when the current passing through it is greater than or equal to a preset threshold. The first terminal is detachably connected to the carrier.

[0006] In the technical solution provided in this application embodiment, the first terminal of the connector can also realize the electrical connection between the connectors, and the first terminal is integrated with the fuse. When a short circuit occurs, the fuse blows and the electrical connection between the first terminal and the electrical components is broken, thereby protecting the electrical components. Furthermore, the first terminal and the connector are detachably connected, and the fuse integrated with the first terminal can be replaced by unplugging the connector, thereby improving the reliability of the battery device.

[0007] In some embodiments, a first groove is provided on the first side, and the first groove is recessed along the connection direction of the first connector; a first terminal is inserted into the first groove, and a first limiting portion is provided on the side wall and / or bottom wall of the first groove, and a second limiting portion is provided corresponding to the first limiting portion; wherein, the first limiting portion and the second limiting portion are detachably engaged.

[0008] In the technical solution provided in the embodiments of this application, a first limiting part is provided on the side wall and / or bottom wall of the first groove, and a second limiting part is provided corresponding to the first limiting part of the first terminal. After the first terminal is inserted into the first groove, the first groove and the first terminal can be further fixed by the first limiting part and the second limiting part, so that the first terminal is not easy to fall off the surface of the first connector, thereby improving the reliability of the battery device.

[0009] In some embodiments, the first limiting portion includes a buckle disposed on the side wall of the first groove, and the second limiting portion includes a buckle groove disposed on the first wall of the first terminal, wherein the buckle and the buckle groove are detachably connected.

[0010] In the technical solution provided in this application embodiment, the buckle is snapped into the buckle groove. The buckle and buckle groove are lightweight, occupy little space, have a simple structure, and are easy to assemble, which can achieve quick and accurate positioning of the first groove and the first terminal.

[0011] In some embodiments, the bottom wall of the first groove is provided with a second groove, and the bottom wall and / or side wall of the second groove are provided with an electrical connection piece; wherein, the electrical connection end is electrically connected to the electrical connection piece.

[0012] In the technical solution provided in this application embodiment, a first groove is provided on the first side, and a first terminal is inserted into the first groove. A second groove is further provided on the bottom wall of the first groove, so that the first groove and the second groove can restrain the shaking of the first terminal, and the electrical connection between the first terminal and the electrical component is realized through the electrical connecting piece provided on the bottom wall and / or side wall of the second groove, thereby improving the reliability of the battery device.

[0013] In some embodiments, electrical connectors are arranged in pairs facing each other, and the opposing electrical connectors clamp the electrical connector ends.

[0014] In the technical solution provided in this application embodiment, the electrical connecting pieces are arranged in pairs and clamp the electrical connecting ends. The electrical connecting pieces can play a better role in fixing the electrical connecting ends, and the paired electrical connecting pieces can play a role in redundant connection. When one part of the connection fails, the other part of the connection can still provide a stable electrical connection, thereby improving the reliability of the battery device.

[0015] In some embodiments, the first limiting portion includes a first internal thread provided on the sidewall of the first groove, and the second limiting portion includes a first external thread provided on the peripheral wall of the first terminal, wherein the first internal thread and the first external thread are detachably connected.

[0016] In the technical solution provided in this application embodiment, the first terminal and the first groove are threaded together, which facilitates disassembly, assembly and maintenance. The thread between the first terminal and the first groove can improve the sealing performance of the first connector and make it more resistant to vibration.

[0017] In some embodiments, the first internal thread is made of metal, the first external thread is made of metal, and the first terminal is electrically connected to the electrical component through the first internal thread and the first external thread.

[0018] In the technical solution provided in this application embodiment, the first internal thread is made of metal, the first external thread is made of metal, and the first terminal and electrical components can achieve detachable connection and electrical connection simultaneously through the cooperation of the first internal thread and the first external thread, thereby saving layout space.

[0019] In some embodiments, the first groove is a square groove, and the first terminal is at least partially a square prism, the square groove being used to fix the square prism.

[0020] In the technical solution provided in this application embodiment, the first groove is a square groove and the first terminal is a square prism, so that the shape of the first terminal can match the first groove. At the same time, the square prism design of the first terminal makes the first terminal easier to insert and remove, which can improve the efficiency of disassembly and installation of the first terminal, thereby improving the reliability of the battery device.

[0021] In some embodiments, a partition wall is provided on the first side, and the partition wall has a through hole, through which the first terminal connection portion passes; wherein, along the radial direction of the through hole of the partition wall, the size of the fused portion is larger than the size of the first terminal connection portion, and the size of the fused portion is larger than the size of the through hole of the partition wall.

[0022] In the technical solution provided in this application embodiment, the size of the fusible part is increased relative to the first terminal connection part, so that the fusible part can abut against the edge of the through hole of the partition wall, thereby fixing the first terminal and improving the reliability of the battery device.

[0023] In some embodiments, the first connector further includes: a connector, through which the electrical component and the electrical connection end are connected; the carrier is further provided with a first sleeve, which is sleeved on the outside of the fusible portion, and one end of the first sleeve is connected to the edge of the through hole of the partition wall, and the other end of the first sleeve is detachably connected to the connector.

[0024] In the technical solution provided in this application embodiment, by setting a first sleeve, the first terminal can be provided with installation positioning. The first sleeve extends from the edge of the through hole of the partition wall, and the free end is detachably connected to the connector. When disassembling the first terminal, the connection between the connector and the first sleeve can be disconnected to remove the first terminal, which facilitates the replacement or maintenance of the fuse part of the first terminal, thereby improving the reliability of the battery device.

[0025] In some embodiments, the first connector further includes a fastener that connects the other end of the first sleeve to the connector.

[0026] In the technical solution provided in this application embodiment, the connection strength between the other end of the first sleeve and the connector can be improved by connecting the other end of the first sleeve and the connector with fasteners. Furthermore, when disassembling the first terminal, the first terminal can be removed by taking off the fasteners, which facilitates quick maintenance of the first terminal and thereby improves the reliability of the battery device.

[0027] In some embodiments, the first sleeve is a cylindrical sleeve, the other end of the first sleeve is provided with a second external thread, the end of the connector facing the partition wall is provided with a third external thread, and the fastener is provided with a second internal thread; wherein, along the axial projection of the first sleeve, the other end of the first sleeve is at least a circular arc, the end of the connector facing the partition wall is at least a circular arc, and the circular arc at the other end of the first sleeve and the circular arc at the end of the connector facing the partition wall are at least partially complementary, and the pitches of the second internal thread, the second external thread and the third external thread are matched.

[0028] In the technical solution provided in this application embodiment, the other end of the first sleeve and the end of the connector facing the partition wall are at least partially complementary circles. After the two are paired, they form a complete external thread, which can cooperate with the internal thread of the fastener to fix the connector and the first sleeve. Stable fixation can be achieved with a small space occupation, thereby improving the reliability of the battery device.

[0029] In some embodiments, a seal is provided between the fastener and the first sleeve.

[0030] In the technical solution provided in this application embodiment, a sealing element is provided between the fastener and the first sleeve, which can reduce the possibility of moisture and dust entering the first sleeve, thereby reducing the possibility of corrosion of the first terminal and thus improving the reliability of the battery device.

[0031] In some embodiments, the first terminal is a male terminal.

[0032] In some embodiments, the first connector is a wire-end connector, and the system further includes a second connector electrically connected to the battery device, the second connector being used to electrically connect to the first connector to output electrical energy from the battery device.

[0033] In the technical solution provided in this application embodiment, the first connector is a wire-end connector, and the second connector is connected to the battery device. The wire-end connector is electrically connected to the second connector, thereby outputting the power of the battery device. After the fuse blows, only the wire-end connector needs to be maintained without disassembling the battery device, which can reduce the risk of damage to the battery device caused by frequent disassembly, thereby improving the reliability of the battery device.

[0034] In a second aspect, a connector is provided, comprising: a carrier and a first terminal, the first terminal being disposed on a first side of the carrier, the first side facing the connection direction of the connector, the first terminal including a first terminal connecting portion, a fusible portion and an electrical connection end, the fusible portion electrically connecting the first terminal connecting portion and the electrical connection end, the electrical connection end being configured to be electrically connected to an electrical component; wherein, the fusible portion is configured to melt when the current passing through is greater than or equal to a preset threshold, and the first terminal is detachably connected to the carrier.

[0035] Thirdly, an electrical device is provided, comprising: a battery device and a connection system as described in any of the first aspects or a connector as described in the second aspect; wherein the battery device provides electrical power to the electrical device through the connection system or connector.

[0036] In some embodiments, the electrical device is a vehicle, a ship, or a spacecraft. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of a vehicle according to one embodiment of this application;

[0038] Figure 2 This is a schematic diagram of the structure of a battery device according to an embodiment of this application;

[0039] Figure 3 An exploded view of a first connector in a connection system provided in a certain embodiment of this application is shown;

[0040] Figure 4 A perspective view of a first connector in a connection system provided in a certain embodiment of this application is shown;

[0041] Figure 5 A front view of a first connector in a connection system provided in a certain embodiment of this application is shown;

[0042] Figure 6 A perspective view of a second connector provided in a certain embodiment of this application is shown;

[0043] Figure 7 Another possible form of a perspective view of the first connector in a connection system provided in a certain embodiment of this application is shown;

[0044] Figure 8 This application illustrates another possible form of the second connector provided in one embodiment;

[0045] Figure 9 A perspective view of a first connector in a connection system provided in yet another embodiment of this application is shown;

[0046] Figure 10 A top view of a first connector provided in yet another embodiment of this application is shown;

[0047] Figure 11 A cross-sectional view (AA) of the first connector provided in another embodiment of this application is shown;

[0048] Figure 12 A schematic diagram of the first end of the first connector provided in another embodiment of this application is shown;

[0049] Figure 13 An exploded view of the connection system provided in another embodiment of this application is shown;

[0050] Figure 14 An exploded view of a first connector in a connection system provided in another embodiment of this application is shown;

[0051] Figure 15 An assembly diagram of a first connector of a connection system according to another embodiment of this application is shown;

[0052] Figure 16 An exploded view of a first connector in a connection system provided in another embodiment of this application is shown;

[0053] Figure 17 A side-rear view of the first connector in a connection system provided in another embodiment of this application is shown;

[0054] Figure 18 A schematic diagram of a fastener mounted on the rear side of a first connector in a connection system provided in another embodiment of this application is shown;

[0055] Figure 19 A front perspective view of a first connector in a connection system provided in another embodiment of this application is shown.

[0056] The accompanying drawings are not drawn to scale.

[0057] Figure label:

[0058] 1-Vehicle; 10-Battery unit; 20-Battery cell; 30-Controller; 40-Motor; 11-Casing; 111-First casing section; 112-Second casing section; 210-First connector; 220-Second connector; 211-Carrier; 2111-First sleeve; 212-First terminal; 213-Second terminal; 2121-First terminal connection section; 2122-Fuse section; 2123-Electrical connection terminal; 214-Interlock terminal; 215-First groove; 216-Second groove; 2161-Electrical connecting piece; 217-Spacer wall; 218-Connector; 219-Fastener; 221-Interlocking terminal slot; 300-First limiting part; 310-Snap-fit; 320-First internal thread; 400-Second limiting part; 410-Snap-fit ​​slot; 420-First external thread; 430-Second external thread; 440-Third external thread; 450-Second internal thread. Detailed Implementation

[0059] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0060] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0061] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0062] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0063] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0064] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0065] In this application, "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0066] Unless otherwise specified, all embodiments and optional embodiments of this application can be combined to form new technical solutions.

[0067] Unless otherwise specified, all technical features and optional technical features of this application may be combined to form new technical solutions.

[0068] In this embodiment of the application, the battery cell can be a secondary battery, which refers to a battery cell that can be recharged to activate the active materials and continue to be used after the battery cell has been discharged.

[0069] The battery cell can be a lithium-ion battery, sodium-ion battery, sodium-lithium-ion battery, lithium metal battery, sodium metal battery, lithium-sulfur battery, magnesium-ion battery, nickel-metal hydride battery, nickel-cadmium battery, lead-acid battery, etc., and the embodiments of this application are not limited to this.

[0070] The battery device mentioned in the embodiments of this application may include one or more battery cell assemblies for providing voltage and capacity. A battery cell assembly may include multiple battery cells, which are connected in series, parallel, or mixed connections via a busbar.

[0071] In some embodiments, a battery cell assembly is typically formed by arranging multiple battery cells.

[0072] As an example, a battery cell assembly can be a battery module, which is formed by arranging and fixing multiple battery cells together to form an independent module. As another example, a battery module can be formed by bundling multiple battery cells together with cable ties.

[0073] In some embodiments, the battery device may be a battery pack, which includes a housing and one or more individual battery cell assemblies housed within the housing.

[0074] As an example, the battery cell assembly can be a battery module, which can be housed in a housing by fixing the battery module in the housing.

[0075] As an example, battery cell assemblies can also be housed in a housing by directly fixing multiple battery cells to the housing.

[0076] As an example, the enclosure may include a first enclosure and a second enclosure. The first enclosure and the second enclosure are fastened together to form a closed space inside the enclosure to house the individual battery cells. Here, "closed" refers to covering or closing, and can be either sealed or unsealed. The first enclosure may be a top cover or a bottom plate.

[0077] As an example, the enclosure may include a top cover, a frame, and a bottom plate. The top cover and bottom plate are connected to the frame, creating an enclosed space inside the enclosure to house the individual battery cells.

[0078] 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.

[0079] The technical solutions described in the embodiments of this application are applicable to various electrical devices that use individual battery cells, such as mobile phones, portable devices, laptops, electric vehicles, electric toys, power tools, vehicles, ships, and spacecraft. For example, spacecraft include airplanes, rockets, space shuttles, and spacecraft.

[0080] Currently, judging from market trends, the application of power batteries is becoming increasingly widespread. Power batteries are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but also extensively used in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace. With the continuous expansion of power battery applications, market demand is also constantly increasing.

[0081] Current battery devices typically use fuses for overcurrent protection, thus protecting the battery device and the electrical components of the power supply. However, replacing a blown fuse may require disassembling the battery device, which is inconvenient and affects the reliability of the battery device.

[0082] Therefore, improving the reliability of battery devices has become an urgent problem to be solved.

[0083] This application provides a connection system including a first connector. The first connector includes a carrier and a first terminal. The first terminal is disposed on a first side of the carrier, with the first side facing the connection direction of the first connector. The first terminal includes a first terminal connection portion, a fusible portion, and an electrical connection end. The fusible portion electrically connects the first terminal connection portion and the electrical connection end. The electrical connection end is configured to be electrically connected to an electrical component. The fusible portion is configured to melt when the current passing through it is greater than or equal to a preset threshold. The first terminal is detachably connected to the carrier.

[0084] In the technical solution provided in this application embodiment, the first terminal of the connector can also realize the electrical connection between the connectors, and the first terminal is integrated with the fuse. When a short circuit occurs, the fuse blows and the electrical connection between the first terminal and the electrical components is broken, thereby protecting the electrical components. Furthermore, the first terminal and the connector are detachably connected, and the fuse integrated with the first terminal can be replaced by unplugging the connector, thereby improving the reliability of the battery device.

[0085] The technical solutions described in the embodiments of this application are applicable to various electrical devices that use battery devices.

[0086] Electrical equipment can include vehicles, mobile phones, portable devices, laptops, ships, spacecraft, electric toys, and power tools, etc. Vehicles can be gasoline-powered cars, natural gas-powered cars, or new energy vehicles; new energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. Spacecraft include airplanes, rockets, space shuttles, and spacecraft, etc. Electric toys include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. 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, etc. This application does not impose any special limitations on the above-mentioned electrical equipment.

[0087] For ease of explanation, the following embodiments use a vehicle as an example of electrical equipment.

[0088] For example, such as Figure 1The diagram shown is a structural schematic of a vehicle 1 according to one embodiment of this application. Vehicle 1 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 electric vehicles, etc. A motor 40, a controller 30, and a battery device 10 can be installed inside vehicle 1. The controller 30 controls the battery device 10 to supply power to the motor 40. For example, the battery device 10 can be installed at the bottom, front, or rear of vehicle 1. The battery device 10 can be used to power vehicle 1. For example, the battery device 10 can serve as the operating power source for vehicle 1, for example, to meet the electrical system requirements of vehicle 1, such as for starting, navigation, and operation. In another embodiment of this application, the battery device 10 can not only serve as the operating power source for vehicle 1, but also as the driving power source for vehicle 1, replacing or partially replacing gasoline or natural gas to provide driving power for vehicle 1.

[0089] For example, Figure 2 A partial structural schematic diagram of the battery device 10 according to an embodiment of this application is shown. Figure 2 As shown, the battery device 10 of this application embodiment may include a plurality of battery cells 20 to meet different power usage requirements. The shape of the battery cell 20 in this application embodiment can be set according to actual application. For example, the battery cell 20 can be as follows: Figure 2 The prism shape shown, or it could be different. Figure 2 Other shapes are shown, but the embodiments of this application are not limited to these.

[0090] It should be understood that, such as Figure 2 As shown, the battery device 10 of this embodiment may further include a housing 11, which can be used to accommodate multiple battery cells 20. The housing 11 of this embodiment has a hollow interior, and the multiple battery cells 20 are accommodated within the housing 11. The housing 11 may include two parts, referred to herein as a first housing portion 111 and a second housing portion 112, which are fastened together. The shapes of the first housing portion 111 and the second housing portion 112 can be determined according to the shape of the components housed inside, for example, according to the shape of the combination of the multiple battery cells 20 housed inside. At least one of the first housing portion 111 and the second housing portion 112 has an opening. For example, the first housing portion 111 and the second housing portion 112 can both be hollow cuboids with one open side each. The openings of the first housing portion 111 and the second housing portion 112 are opposite to each other, and the first housing portion 111 and the second housing portion 112 are interlocked to form a housing 11 with a closed cavity, which can be used to accommodate multiple battery cells 20. The multiple battery cells 20 are connected in parallel, series, or mixed and placed inside the housing 11 formed by the interlocking of the first housing portion 111 and the second housing portion 112.

[0091] For example, one of the first housing portion 111 and the second housing portion 112 may be a hollow cuboid with an opening, while the other is plate-shaped to cover the opening. Taking the second housing portion 112 as a hollow cuboid with one opening, and the first housing portion 111 as a plate-shaped example, then the first housing portion 111 covers the opening of the second housing portion 112 to form a housing 11 with a closed chamber, which can be used to accommodate multiple battery cells 20.

[0092] The following is combined with Figures 3 to 8 This application describes a connection system provided in one embodiment.

[0093] Figure 3 An exploded view of a first connector 210 in a connection system provided in a certain embodiment of this application is shown; Figure 4 A perspective view of a first connector 210 in a connection system provided in a certain embodiment of this application is shown; Figure 5 A front view of a first connector 210 in a connection system provided in a certain embodiment of this application is shown; Figure 6 A perspective view of a second connector 220 provided in a certain embodiment of this application is shown; Figure 7 Another possible form of a perspective view of the first connector 210 in a connection system provided in a certain embodiment of this application is shown; Figure 8 This illustrates another possible form of the second connector 220 provided in one embodiment of this application.

[0094] This application provides a connection system including a first connector 210. The first connector 210 includes a carrier 211 and a first terminal 212. The first terminal 212 is disposed on a first side of the carrier 211, with the first side facing the connection direction of the first connector 210. The first terminal 212 includes a first terminal connection portion 2121, a fuse portion 2122, and an electrical connection end 2123. The fuse portion 2122 electrically connects the first terminal connection portion 2121 and the electrical connection end 2123. The electrical connection end 2123 is configured to be electrically connected to an electrical component. The fuse portion 2122 is configured to melt when the current passing through it is greater than or equal to a preset threshold. The first terminal 212 is detachably connected to the carrier 211.

[0095] For example, the first connector 210 can realize the electrical connection between the battery device 10 and the power-consuming device, or the internal electrical connection of the power-consuming device; this application embodiment does not limit this. For example, the first connector 210 can connect to circuit boards, wiring harnesses, battery management systems, motors, etc.; this application embodiment is not limited thereto.

[0096] The first terminal 212 can be either a male terminal or a female terminal. The accompanying drawings of this application embodiment illustrate that both the first terminal 212 and the second terminal 213 are male terminals, but this application embodiment is not limited thereto.

[0097] When the first terminal 212 is a male terminal, the first terminal connecting part 2121 can be a protruding needle-like structure or a square protruding structure as shown in the figure. When the first terminal 212 is a female terminal, the first terminal connecting part 2121 can be a groove structure. The embodiments of this application are not limited thereto.

[0098] The first terminal 212 and the carrier 211 can be detachably connected by means of a buckle 310, a locking tongue, a hook, a key, etc. The attached drawings of this application use buckle 310 as an example for illustration, but this application is not limited thereto.

[0099] The first side of the first connector 210 can be any side of the first connector 210. The first terminal 212 and the second terminal 213 are disposed on the first side. The first terminal 212 and the second terminal 213 can be protruding from the first side, or the first terminal 212 and the second terminal 213 can be disposed in the groove of the first side. The embodiments of this application are not limited thereto.

[0100] The first connector 210 may be provided with an interlock terminal 214, and the second connector 220 may be provided with an interlock terminal slot 221 accordingly, so as to position the installation of the two. This application embodiment does not limit this.

[0101] The accompanying drawings of this application illustrate a first connector 210 including a first terminal 212 and a second terminal 213. However, the embodiments of this application are not limited to this. For example, the first connector 210 may include only the first terminal 212.

[0102] In the technical solution provided in this application embodiment, the first terminal 212 of the first connector 210 can realize the electrical connection between the connectors, and the first terminal 212 is integrated with the fuse. When a short circuit occurs, the fuse blows and the electrical connection between the first terminal 212 and the electrical components is broken, thereby protecting the electrical components. Furthermore, the first terminal 212 and the first connector 210 are detachably connected. The fuse integrated with the first terminal 212 can be replaced by unplugging the first connector 210, thereby improving the reliability of the battery device 10.

[0103] The following is combined with Figures 9 to 12 This application describes a connection system provided in yet another embodiment.

[0104] Figure 9 A perspective view of a first connector 210 in a connection system provided in another embodiment of this application is shown; Figure 10A top view of a first connector 210 provided in yet another embodiment of this application is shown; Figure 11 A cross-sectional view AA of the first connector 210 provided in another embodiment of this application is shown; Figure 12 A schematic diagram of the first terminal 212 in the first connector 210 provided in another embodiment of this application is shown.

[0105] In some embodiments, a first groove 215 is provided on the first side, the first groove 215 is recessed along the connection direction of the first connector 210, and a first limiting part 300 is provided on the side wall and / or bottom wall of the first groove 215. A second limiting part 400 is provided corresponding to the first terminal 212 and the first limiting part 300. The first limiting part 300 and the second limiting part 400 are detachably engaged.

[0106] The first limiting part 300 and the second limiting part 400 can be components that perform a locking function. For example, the first limiting part 300 can be a buckle 310, a locking tongue, a hook, a key, etc., and the second limiting part 400 is correspondingly configured as a component that cooperates with the first limiting part 300, such as a groove, a protrusion structure, etc. The above examples are merely illustrative, and the examples of the first limiting part 300 and the second limiting part 400 can be interchanged. In this application embodiment, the buckle 310 is used as an example for illustration, but the embodiments of this application are not limited thereto.

[0107] In the technical solution provided in this application embodiment, a first limiting part 300 is provided on the side wall and / or bottom wall of the first groove 215, and a second limiting part 400 is provided corresponding to the first limiting part 300 for the first terminal 212. After the first terminal 212 is inserted into the first groove 215, the first groove 215 and the first terminal 212 can be further fixed by the first limiting part 300 and the second limiting part 400, so that the first terminal 212 is not easy to fall off the surface of the first connector 210, thereby improving the reliability of the battery device 10.

[0108] In some embodiments, the first limiting part 300 includes a buckle 310 disposed on the side wall of the first groove 215, and the second limiting part 400 includes a buckle groove 410 disposed on the first wall of the first terminal 212, wherein the buckle 310 and the buckle groove 410 are detachably connected.

[0109] The first limiting part 300 includes a buckle 310 disposed on the side wall of the first groove 215, and the second limiting part 400 includes a buckle groove 410 disposed on the first wall of the first terminal 212. When installing the first terminal 212, the first terminal 212 is inserted into the first groove 215 along the connection direction of the first connector 210. When the buckle 310 and the buckle groove 410 are correspondingly set, when the buckle 310 is inserted into the buckle groove 410, a click sound is heard, which indicates that the installation is complete.

[0110] In the technical solution provided in this application embodiment, the buckle 310 is snapped into the buckle groove 410. The buckle 310 and the buckle groove 410 are lightweight, occupy little space, have a simple structure, and are easy to assemble, which can achieve quick and accurate positioning of the first groove 215 and the first terminal 212.

[0111] In some embodiments, the bottom wall of the first groove 215 is provided with a second groove 216, and the bottom wall and / or side wall of the second groove 216 are provided with an electrical connecting piece 2161; the first terminal 212 is inserted into the first groove 215, and the electrical connecting end 2123 is electrically connected to the electrical connecting piece 2161.

[0112] A first groove 215 is provided on the first side, and a first terminal 212 is inserted into the first groove 215, thereby fixing the first terminal 212.

[0113] The accompanying drawings of this application show the first terminal connection portion 2121 as a rectangular structure, but the embodiments of this application are not limited thereto. For example, the first terminal connection portion 2121 can also be cylindrical, polygonal, etc.

[0114] The bottom wall of the first groove 215 is further provided with a second groove 216. On the one hand, the second groove 216 can further fix the first terminal 212. On the other hand, the second groove 216 accommodates the electrical connection end 2123 and makes the electrical connection end 2123 electrically connected to the electrical component connected to the first connector 210 through the electrical connection piece 2161.

[0115] In the technical solution provided in this application embodiment, a first groove 215 is provided on the first side, and a first terminal 212 is inserted into the first groove 215. A second groove 216 is further provided on the bottom wall of the first groove 215, so that the first groove 215 and the second groove 216 can restrain the shaking of the first terminal 212, and the electrical connection between the first terminal 212 and the electrical component is realized through the electrical connecting piece 2161 provided on the bottom wall and / or side wall of the second groove 216, thereby improving the reliability of the battery device 10.

[0116] In some embodiments, electrical connectors 2161 are arranged in pairs facing each other, and the opposing electrical connectors 2161 clamp the electrical connector 2123.

[0117] In the technical solution provided in this application embodiment, the electrical connecting pieces 2161 are arranged in pairs and clamp the electrical connecting end 2123. The electrical connecting pieces 2161 can play a better role in fixing the electrical connecting end 2123, and the paired electrical connecting pieces 2161 can play a role in redundant connection. When one part of the connection fails, the other part of the connection can still provide a stable electrical connection, thereby improving the reliability of the battery device 10.

[0118] The following is combined with Figures 13 to 15This application also describes a connection system provided in another embodiment.

[0119] Figure 13 An exploded view of the connection system provided in another embodiment of this application is shown; Figure 14 An exploded view of the first connector 210 in a connection system provided in another embodiment of this application is shown; Figure 15 An assembly diagram of a first connector 210 of a connection system provided in another embodiment of this application is shown.

[0120] In some embodiments, the first limiting portion 300 includes a first internal thread 320 disposed on the side wall of the first groove 215, and the second limiting portion 400 includes a first external thread 420 disposed on the peripheral wall of the first terminal 212, wherein the first internal thread 320 and the first external thread 420 are detachably connected.

[0121] In the technical solution provided in this application embodiment, the first terminal 212 and the first groove 215 are threaded together, which facilitates disassembly, assembly and maintenance. The thread between the first terminal 212 and the first groove 215 can improve the sealing performance of the first connector 210 and make it more resistant to vibration.

[0122] In some embodiments, the first internal thread 320 is made of metal, the first external thread 420 is made of metal, and the first terminal 212 is electrically connected to the electrical component through the first internal thread 320 and the first external thread 420.

[0123] In the technical solution provided in this application embodiment, the first internal thread 320 is made of metal, the first external thread 420 is made of metal, and the first terminal 212 and the electrical component can achieve detachable connection and electrical connection at the same time through the cooperation of the first internal thread 320 and the first external thread 420, thereby saving layout space.

[0124] In some embodiments, the first groove 215 is a square groove, and the first terminal 212 is at least partially a square prism, the square groove being used to fix the square prism.

[0125] In the technical solution provided in this application embodiment, the first groove 215 is a square groove and the first terminal 212 is a square prism, so that the shape of the first terminal 212 can match the first groove 215. At the same time, the square prism design of the first terminal 212 makes the first terminal 212 easier to insert and remove, which can improve the disassembly and installation efficiency of the first terminal 212, thereby improving the reliability of the battery device 10.

[0126] The following is combined with Figures 16 to 19 This application describes a connection system provided in another embodiment.

[0127] Figure 16An exploded view of a first connector 210 in a connection system provided in another embodiment of this application is shown; Figure 17 A side-rear view of the first connector 210 in a connection system provided in another embodiment of this application is shown; Figure 18 A schematic diagram of a rear-side mounting fastener 219 of a first connector 210 in a connection system provided in another embodiment of this application is shown; Figure 19 A front perspective view of a first connector 210 in a connection system provided in another embodiment of this application is shown.

[0128] In some embodiments, a partition wall 217 is provided on the first side, and the partition wall 217 is provided with a through hole, through which the first terminal connection portion 2121 passes; wherein, along the radial direction of the through hole of the partition wall 217, the size of the fusible portion 2122 is larger than the size of the first terminal connection portion 2121, and the size of the fusible portion 2122 is larger than the size of the through hole of the partition wall 217.

[0129] Along the radial direction of the through hole in the partition wall 217, the size of the fusible portion 2122 is larger than the size of the first terminal connection portion 2121, and the size of the fusible portion 2122 is larger than the size of the through hole in the partition wall 217. When the first terminal connection portion 2121 passes through the through hole in the partition wall 217, the fusible portion 2122 can abut against the edge of the through hole in the partition wall 217 away from the second connector 220, thereby restricting the further axial movement of the first terminal 212, so that the first terminal connection portion 2121 can protrude from the through hole in the partition wall 217 while fixing the first terminal 212.

[0130] In the technical solution provided in this application embodiment, the size of the fuse portion 2122 is increased relative to the first terminal connection portion 2121, so that the fuse portion 2122 can abut against the edge of the through hole of the spacer wall 217, thereby fixing the first terminal 212 and improving the reliability of the battery device 10.

[0131] In some embodiments, the first connector 210 further includes a connector 218, through which the electrical components and the electrical connection end 2123 are connected; the carrier 211 is further provided with a first sleeve 2111, which is sleeved on the outside of the fuse portion 2122, and one end of the first sleeve 2111 is connected to the edge of the through hole of the partition wall 217, and the other end of the first sleeve 2111 is detachably connected to the connector 218.

[0132] The connector 218 can be connected to the electrical connection terminal 2123 by means of snap-fit, threaded connection, etc., and the embodiments of this application are not limited thereto.

[0133] The first sleeve 2111 provides positioning for the first terminal 212, allowing the first terminal 212 to slide into the through hole of the spacer wall 217 along the first sleeve 2111, simplifying the installation process. After the first terminal connecting portion 2121 of the first terminal 212 passes through the through hole of the spacer wall 217, the first sleeve 2111 can fix the first terminal 212.

[0134] The other end of the first sleeve 2111 is detachably connected to the connector 218, so that the other end of the first sleeve 2111 can be separated from the connector 218, thereby making it easier to remove the first terminal 212.

[0135] In the technical solution provided in this application embodiment, by setting a first sleeve 2111, the first terminal 212 can be provided with installation positioning. The first sleeve 2111 extends from the edge of the through hole of the partition wall 217, and its free end is detachably connected to the connector 218. When disassembling the first terminal 212, the connection between the connector 218 and the first sleeve 2111 can be disconnected to remove the first terminal 212, which facilitates the replacement or maintenance of the fuse part 2122 of the first terminal 212, thereby improving the reliability of the battery device 10.

[0136] In some embodiments, the first connector 210 further includes a fastener 219, which connects the other end of the first sleeve 2111 to the connector 218.

[0137] The fastener 219 can be a claw structure, a hairpin structure, or a threaded structure. In this embodiment, the fastener 219 is a threaded structure, but this embodiment is not limited thereto.

[0138] In the technical solution provided in this application embodiment, the other end of the first sleeve 2111 and the connector 218 are connected by fastener 219, which can improve the connection strength between the other end of the first sleeve 2111 and the connector 218. Furthermore, when disassembling the first terminal 212, the first terminal 212 can be removed by taking off the fastener 219, which facilitates quick maintenance of the first terminal 212 and thereby improves the reliability of the battery device 10.

[0139] In some embodiments, the first sleeve 2111 is a cylindrical sleeve, the other end of the first sleeve 2111 is provided with a second external thread 430, the end of the connector 218 facing the spacer wall 217 is provided with a third external thread 440, and the fastener 219 is provided with a second internal thread 450; wherein, along the axial projection of the first sleeve 2111, the other end of the first sleeve 2111 is at least a circular arc, the end of the connector 218 facing the spacer wall 217 is at least a circular arc, and the circular arc at the other end of the first sleeve 2111 and the circular arc at the end of the connector 218 facing the spacer wall 217 are at least partially complementary, and the pitch of the second internal thread 450, the second external thread 430 and the third external thread 440 are matched.

[0140] Projecting along the axial direction of the first sleeve 2111, the other end of the first sleeve 2111 is at least one arc segment, and the end of the connector 218 facing the partition wall 217 is at least one arc segment. That is, the projected shape is one or more arc segments, or it can be understood as a circle with a notch.

[0141] The arc at the other end of the first sleeve 2111 is at least partially complementary to the arc at the end of the connector 218 facing the spacer wall 217. The two arcs are complementary, and the external threads on their outer sides can match during assembly, so that the second internal thread 450 of the fastener 219 can fix the two.

[0142] Matching the pitches of the second internal thread 450, the second external thread 430, and the third external thread 440 can be understood as the second internal thread 450, the second external thread 430, and the third external thread 440 having equal or integer multiples of each other's pitches.

[0143] When installing the first terminal 212, first insert the first terminal 212 into the first sleeve 2111. Then align the connector 218 with the end of the first sleeve 2111 away from the through hole of the partition wall 217, so that their outer peripheral surfaces are complementary, allowing the connector 218 to be electrically connected to the electrical connection terminal 2123. Next, fit the fastener 219 onto the outside of the second external thread 430 and the third external thread 440, so that the second internal thread 450 of the fastener 219 engages with the second external thread 430 and the third external thread 440, thereby fixing the first terminal 212. When disassembling the first terminal 212, simply remove the fastener 219 to separate the connector 218 from the first sleeve 2111.

[0144] In the technical solution provided in this application embodiment, the other end of the first sleeve 2111 and the end of the connector 218 facing the spacer wall 217 are at least partially complementary circles. After the two are paired, they form a complete external thread, which can cooperate with the internal thread of the fastener 219 to fix the connector 218 and the first sleeve 2111. Stable fixation can be achieved with a small space occupation, thereby improving the reliability of the battery device 10.

[0145] Furthermore, the arc at the other end of the first sleeve 2111 and the arc at the end of the connector 218 facing the spacer wall 217 can form a complete circle.

[0146] In some embodiments, a seal is provided between the fastener 219 and the first sleeve 2111.

[0147] The sealing element can be a rubber ring, foam, or other components that perform a sealing function; this application does not limit the specific components used in the embodiments.

[0148] In the technical solution provided in this application embodiment, a sealing element is provided between the fastener 219 and the first sleeve 2111, which can reduce the possibility of moisture and dust entering the first sleeve 2111, thereby reducing the possibility of the first terminal 212 being corroded, thereby improving the reliability of the battery device 10.

[0149] In some embodiments, the first terminal 212 is a male terminal.

[0150] In some embodiments, the first connector 210 is a wire-end connector, and the connection system further includes a second connector 220, which is electrically connected to the battery device 10 and is used to output electrical energy from the battery device 10 to the first connector 210.

[0151] In the technical solution provided in this application embodiment, the first connector 210 is a wire-end connector, and the second connector 220 is connected to the battery device 10. The wire-end connector is electrically connected to the second connector 220, thereby outputting the power of the battery device 10. After the fuse blows, only the wire-end connector needs to be maintained without disassembling the battery device 10, which can reduce the risk of damage to the battery device 10 caused by frequent disassembly of the battery device 10, thereby improving the reliability of the battery device 10.

[0152] This application embodiment also provides a connector, including a carrier 211 and a first terminal 212. The first terminal 212 is disposed on a first side of the carrier 211, with the first side facing the connection direction of the connector. The first terminal 212 includes a first terminal connection portion 2121, a fuse portion 2122, and an electrical connection end 2123. The fuse portion 2122 electrically connects the first terminal connection portion 2121 and the electrical connection end 2123. The electrical connection end 2123 is configured to be electrically connected to an electrical component. The fuse portion 2122 is configured to melt when the current passing through it is greater than or equal to a preset threshold. The first terminal 212 is detachably connected to the carrier 211.

[0153] This application also provides an electrical device, including a battery device 10 and a connection system or connector as described in any of the above embodiments, wherein the battery device 10 provides electrical energy to the electrical device through the connection system or connector.

[0154] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A connection system, characterized in that include: A first connector (210) includes a carrier (211) and a first terminal (212). The first terminal (212) is disposed on a first side of the carrier (211) facing the connection direction of the first connector (210). The first terminal (212) includes a first terminal connection portion (2121), a fuse portion (2122), and an electrical connection end (2123). The fuse portion (2122) electrically connects the first terminal connection portion (2121) and the electrical connection end (2123). The electrical connection end (2123) is configured to be electrically connected to an electrical component. The fuse (2122) is configured to melt when the current passing through it is greater than or equal to a preset threshold, and the first terminal (212) is detachably connected to the carrier (211).

2. The connection system of claim 1, wherein, The first side is provided with a first groove (215), and the first groove (215) is recessed along the connection direction of the first connector (210); The first terminal (212) is inserted into the first groove (215), and the side wall and / or bottom wall of the first groove (215) are provided with a first limiting part (300). The first terminal (212) is provided with a second limiting part (400) corresponding to the first limiting part (300). The first limiting part (300) and the second limiting part (400) are detachably coupled.

3. The connection system of claim 2, wherein, The first limiting part (300) includes a buckle (310) disposed on the side wall of the first groove (215), and the second limiting part (400) includes a buckle groove (410) disposed on the first wall of the first terminal (212). The buckle (310) and the buckle groove (410) are detachably connected.

4. The connection system according to claim 3, characterized in that The bottom wall of the first groove (215) is provided with a second groove (216), and the bottom wall and / or side wall of the second groove (216) are provided with an electrical connection piece (2161). The electrical connection terminal (2123) is electrically connected to the electrical connection piece (2161).

5. The connection system of claim 4, wherein, The electrical connectors (2161) are arranged in pairs opposite each other, and the oppositely arranged electrical connectors (2161) clamp the electrical connector (2123).

6. The connection system of claim 2, wherein, The first limiting part (300) includes a first internal thread (320) provided on the side wall of the first groove (215), and the second limiting part (400) includes a first external thread (420) provided on the peripheral wall of the first terminal (212). The first internal thread (320) and the first external thread (420) are detachably connected.

7. The connection system of claim 6, wherein, The first internal thread (320) is made of metal, the first external thread (420) is made of metal, and the first terminal (212) is electrically connected to the electrical component through the first internal thread (320) and the first external thread (420).

8. The connection system of claim 2, wherein, The first groove (215) is a square groove, and the first terminal (212) is at least partially a square prism, the square groove being used to fix the square prism.

9. The connection system of claim 1, wherein, The first side is provided with a partition wall (217), the partition wall (217) is provided with a through hole, and the first terminal connection part (2121) passes through the through hole of the partition wall (217); Wherein, along the radial direction of the through hole of the spacer wall (217), the size of the fuse portion (2122) is larger than the size of the first terminal connection portion (2121), and the size of the fuse portion (2122) is larger than the size of the through hole of the spacer wall (217).

10. The connection system of claim 9, wherein, The first connector (210) further includes: Connector (218), the electrical component is connected to the electrical connection terminal (2123) via the connector (218); The carrier (211) is also provided with a first sleeve (2111), which is sleeved on the outside of the fuse part (2122), and one end of the first sleeve (2111) is connected to the edge of the through hole of the partition wall (217), and the other end of the first sleeve (2111) is detachably connected to the connector (218).

11. The connection system of claim 10, wherein, The first connector (210) further includes: Fastener (219) connects the other end of the first sleeve (2111) to the connector (218).

12. The connection system of claim 11, wherein, The first sleeve (2111) is a cylindrical sleeve, and the other end of the first sleeve (2111) is provided with a second external thread (430). The end of the connector (218) facing the partition wall (217) is provided with a third external thread (440), and the fastener (219) is provided with a second internal thread (450). Wherein, along the axial projection of the first sleeve (2111), the other end of the first sleeve (2111) is at least one arc segment, the end of the connector (218) facing the spacer wall (217) is at least one arc segment, and the arc segment of the other end of the first sleeve (2111) and the arc segment of the connector (218) facing the spacer wall (217) are at least partially complementary, and the pitch of the second internal thread (450), the second external thread (430) and the third external thread (440) are matched.

13. The connection system of claim 11, wherein, A seal is provided between the fastener (219) and the first sleeve (2111).

14. The connection system according to any one of claims 1 to 13, characterized in that, The first terminal (212) is a male terminal.

15. The connection system according to any one of claims 1 to 13, characterized in that The first connector (210) is a wire-end connector, and the system further includes: The second connector (220) is electrically connected to the battery device (10) and is used to electrically connect to the first connector (210) to output the electrical energy of the battery device (10).

16. A connector characterized by comprising: include: The carrier (211) and the first terminal (212) are provided on a first side of the carrier (211), the first side facing the connection direction of the connector. The first terminal (212) includes a first terminal connection portion (2121), a fuse portion (2122) and an electrical connection end (2123). The fuse portion (2122) electrically connects the first terminal connection portion (2121) and the electrical connection end (2123). The electrical connection end (2123) is configured to be electrically connected to an electrical component. The fuse (2122) is configured to melt when the current passing through it is greater than or equal to a preset threshold, and the first terminal (212) is detachably connected to the carrier (211).

17. An electrical device, comprising: include: The battery device (10) and the connection system as described in any one of claims 1 to 15 or the connector as described in claim 16; The battery device (10) provides electrical energy to the electrical device through the connection system or connector.

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