Battery devices, connection terminals and electrical equipment

Abstract

The present application relates to a battery device, a connecting terminal and an electrical device. The battery device includes at least one battery cell group and a connecting terminal, and the connecting terminal is used to electrically connect to the battery cell group through a cable. The connecting terminal includes a docking portion, a crimping portion and an insulating layer anti-detachment portion, the crimping portion is connected to the docking portion, and the crimping portion is provided with a crimping groove capable of accommodating the cable, and a first area and a second area are provided on the inner surface of the crimping groove along the extension direction of the crimping groove. The surface of the first area is used to contact the wire core of the cable, and the surface of the second area is used to contact the insulating layer of the cable, and the insulating layer anti-detachment portion is provided in the second area. The battery device improves the connecting terminal, and provides an insulating layer anti-detachment portion in the second area, and performs anti-detachment limit on the insulating layer to prevent the insulating layer from escaping from the crimping portion, thereby further improving the connection firmness between the cable and the connecting terminal.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery device, a connecting terminal and an electrical device. Background Art

[0002] With the continuous development of new energy technology, battery devices are increasingly used, and are often used in hybrid vehicles or electric vehicles. Therefore, the safety and reliability of battery devices are particularly important.

[0003] Connectors are often used to connect cables inside a battery device, or to connect a battery device to other test equipment or electrical equipment. Generally, a connector includes a male terminal and a female terminal, and the male terminal or the female terminal is connected to the cable to achieve electrical conduction. Therefore, the reliability of the connection between the terminal and the cable is an important factor affecting the reliability of the connector. Utility Model Content

[0004] Based on this, it is necessary to provide a battery device, a connection terminal and an electrical device that can prevent the cable from being separated from the connection terminal.

[0005] In a first aspect, the present application provides a battery device, comprising:

[0006] at least one battery cell group; and

[0007] The connecting terminal is used to electrically connect to the battery cell group through a cable; the connecting terminal includes:

[0008] Docking part;

[0009] The crimping portion is connected to the butt joint portion, and is provided with a crimping groove capable of accommodating the cable; a first area and a second area are provided on the inner surface of the crimping groove along the extension direction of the crimping groove, the surface of the first area is used to contact with the wire core of the cable, and the surface of the second area is used to contact with the insulation layer of the cable;

[0010] The insulating layer anti-stripping portion is arranged in the second area.

[0011] The battery device proposed in the embodiment of the present application is configured to have a connecting terminal including a docking portion and a crimping portion, which is matched with a battery or other connecting terminal through the docking portion, and is connected with a cable through the crimping portion. By providing a crimping groove on the crimping groove, and providing a first area and a second area on the inner surface of the crimping groove, the wire core and the insulating layer of the cable are accommodated and crimped at the same time, thereby increasing the contact area between the cable and the connecting terminal, which is beneficial to improving the connection firmness between the cable and the connecting terminal. Furthermore, by providing an insulating layer anti-detachment portion in the second area, the insulating layer is prevented from detaching and limited, and the insulating layer is prevented from detaching from the crimping portion, thereby further improving the connection firmness between the cable and the connecting terminal.

[0012] In some embodiments, the insulating layer anti-detachment portion is configured as a protrusion disposed on the surface of the second region.

[0013] The battery device proposed in the embodiment of the present application provides a protrusion on the surface of the second area, and the protrusion contacts and presses the insulating layer of the cable, thereby increasing the friction between the two, thereby increasing the crimping holding force of the crimping part on the insulating layer, thereby preventing the cable from separating from the connecting terminal.

[0014] In some embodiments, the connection terminal includes a plurality of insulation layer anti-detachment portions arranged at intervals.

[0015] The battery device provided in the embodiment of the present application provides an anti-detachment force to the cable through a plurality of insulation layer anti-detachment parts, thereby further improving the connection firmness between the cable and the crimping part.

[0016] In some embodiments, a plurality of insulating layer anti-detachment portions are arranged spaced apart from each other along the first direction;

[0017] The first direction is arranged at an angle γ with the extending direction of the crimping groove.

[0018] The battery device provided in the embodiment of the present application can form multiple anti-detachment limiters for the insulation layer in the circumferential direction of the cable, thereby achieving a better anti-detachment effect on the cable.

[0019] In some embodiments, the connecting terminal further includes a wire core anti-dropping portion;

[0020] The wire core anti-dropping portion is arranged in the first area.

[0021] The battery device proposed in the embodiment of the present application provides a wire core anti-dropout portion on the surface of the first region to prevent the wire core portion of the cable from dropping out and further improve the crimping force of the crimping portion on the cable.

[0022] In some embodiments, the wire core anti-dropout portion is configured as a first groove disposed in the first area;

[0023] The first groove extends along a first preset path, and an extending direction of the first preset path forms an angle β with an extending direction of the crimping groove.

[0024] The battery device proposed in the embodiment of the present application increases friction by setting a first groove on the surface of the first area; and by setting the extension path of the first groove as above, multiple anti-slip limit positions can be formed on the cable core in the circumferential direction of the cable, thereby forming a better anti-slip effect on the cable.

[0025] In some embodiments, the angle β satisfies the condition:

[0026] 60°≤β≤90°.

[0027] In the battery device proposed in the embodiment of the present application, within this angle range, the crimping groove has a larger inclination angle relative to the extension direction of the crimping groove, thereby being able to provide a larger anti-slip force in the circumferential direction of the wire core.

[0028] In some embodiments, the connection terminal includes a plurality of wire core anti-detachment portions;

[0029] A plurality of wire core anti-dropping portions are spaced apart from each other and arranged in parallel.

[0030] The battery device proposed in the embodiment of the present application increases the setting range of the wire core anti-detachment parts by providing a plurality of wire core anti-detachment parts that are spaced apart from each other and parallel, thereby further improving the connection firmness between the first area and the wire core.

[0031] In some embodiments, a third area is further provided on the inner surface of the crimping groove, the third area and the second area are arranged at intervals along the extension direction of the crimping groove, and the surface of the third area is used to contact the insulation layer of the cable.

[0032] The battery device provided in the embodiment of the present application further connects and fixes the insulating layer of the cable by setting the third area, so as to further improve the connection firmness between the connection terminal and the cable.

[0033] In some embodiments, along the extension direction of the crimping groove, the third area is arranged on a side of the second area away from the first area.

[0034] In the battery device provided in the embodiment of the present application, the third region is located at the end of the connection terminal, which assists the second region in further crimping and fixing the insulation layer of the cable.

[0035] In some embodiments, the connection terminal further includes an auxiliary anti-detachment portion, and the auxiliary anti-detachment portion is disposed in the third area.

[0036] The battery device proposed in the embodiment of the present application provides an auxiliary anti-detachment portion to prevent the insulation layer of the cable from detaching, thereby preventing the cable from detaching from the third area, thereby ensuring the crimping effect of the third area on the cable.

[0037] In some embodiments, the auxiliary anti-slip portion is configured as a second groove disposed on the surface of the third region;

[0038] The second groove extends along a second preset path, and an extending direction of the second preset path forms an angle α with an extending direction of the crimping groove.

[0039] The battery device proposed in the embodiment of the present application increases friction by setting a second groove on the surface of the third area; and by setting the extension path of the second groove as above, multiple anti-slip limiters can be formed on the insulating layer in the circumferential direction of the cable, thereby forming a better anti-slip effect on the cable.

[0040] In some embodiments, the connection terminal includes a plurality of auxiliary anti-detachment portions, and the plurality of auxiliary anti-detachment portions are spaced apart from each other and arranged in parallel.

[0041] The battery device proposed in the embodiment of the present application increases the setting range of the auxiliary anti-detachment parts by providing a plurality of auxiliary anti-detachment parts that are spaced apart from each other and parallel, thereby further improving the connection firmness between the third area and the cable.

[0042] In some embodiments, the connection terminal further includes a fixing portion, the fixing portion connecting the butting portion and the crimping portion; the crimping portion includes:

[0043] the main body; and

[0044] The wing parts are arranged on both sides of the main body part opposite to each other and at intervals, and the main body part and the wing parts define a crimping groove;

[0045] The cable is accommodated in the crimping groove, and the wings arranged opposite to each other can cooperate to clamp the cable.

[0046] The battery device proposed in the embodiment of the present application defines a crimping groove by setting a main body and wing parts, and clamps the cable through the wings arranged opposite to each other, so as to achieve clamping and fixing of the cable.

[0047] In some embodiments, the first area and the second area are spaced apart;

[0048] The wing portion is provided with a gap between the first area and the second area.

[0049] The battery device proposed in the embodiment of the present application divides the wing into two parts by setting a notch, and the two parts face the first area and the second area respectively, so that the core and the insulation layer of the cable can be clamped independently. Since the thickness of the core and the insulation layer are not consistent, by clamping the core and the insulation layer independently, the problem of the thinner core being unable to be clamped can be avoided.

[0050] In some embodiments, the battery device includes two connection terminals, wherein a mating portion of one connection terminal is configured as a male terminal, and a mating portion of the other connection terminal is configured as a female terminal, and the male terminal and the female terminal are mated.

[0051] The battery device proposed in the embodiment of the present application is provided with two connection terminals, so that the two connection terminals are respectively connected to two cables to be connected, so as to achieve a stable connection of the two cables through the matching of the two connection terminals.

[0052] In a second aspect, the present application provides a connection terminal, the connection terminal comprising:

[0053] Docking part;

[0054] The crimping portion is connected to the butt joint portion, and is configured with a crimping groove capable of accommodating and clamping the cable; a first area and a second area are provided on the inner surface of the crimping groove along the extension direction of the crimping groove, the surface of the first area contacts the wire core of the cable, and the surface of the second area contacts the insulation layer of the cable;

[0055] The insulating layer anti-stripping portion is arranged in the second area.

[0056] In a third aspect, the present application provides an electrical device, including a battery device as provided in any of the above embodiments, and the battery device is used to provide electrical energy.

[0057] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0059] Figure 1 A schematic diagram of the structure of a vehicle provided in some embodiments of the present application;

[0060] Figure 2 A schematic diagram of the structure of a battery device provided in some embodiments of the present application;

[0061] Figure 3 A schematic diagram of the structure of a first connection terminal provided in some embodiments of the present application at a viewing angle;

[0062] Figure 4 A schematic structural diagram of a first connection terminal provided in some embodiments of the present application at another viewing angle;

[0063] Figure 5 This is a schematic diagram of the structure of a second connection terminal provided in some embodiments of the present application.

[0064] The reference numerals in the specific implementation manner are as follows:

[0065] 1000, vehicle; 100, battery device; 200, controller; 300, motor;

[0066] 10. Box body; 11. First part; 12. Second part;

[0067] 20. Battery monomer group;

[0068] 30. Connecting terminal; 31. Docking part; 32. Crimping part; 320. Crimping groove; 3201. Main body; 3202. Wing; 321. First area; 3211. Wire core anti-detachment part; 322. Second area; 3221. Insulation layer anti-detachment part; 323. Third area; 3231. Auxiliary anti-detachment part; 33. Fixing part. DETAILED DESCRIPTION

[0069] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0070] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0071] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0072] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0073] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0074] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0075] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0076] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0077] At present, judging from the development of the market situation, the application of batteries is becoming more and more extensive. Batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars and other fields. With the continuous expansion of battery application areas, the market demand is also constantly expanding.

[0078] Connectors are often needed to connect cables inside a battery device, or to connect a battery device with other test equipment or electrical equipment. Generally, a connector includes a male connecting terminal and a female connecting terminal, and the male connecting terminal or the female connecting terminal is connected to the cable to achieve electrical conduction. Traditional connecting terminals are generally provided with crimping grooves, and the cables are placed in the crimping grooves. The groove walls of the crimping grooves are then squeezed to hold the cables tightly, thereby achieving connection between the cables and the connecting terminals. When the cable is connected to the end of the connecting terminal, the insulation layer is generally stripped off to expose the wire core, so that the wire core is in direct contact with the connecting terminal, thereby achieving electrical connection.

[0079] The inventor of the present application has noticed that when the battery device is in use, when the cable is pulled or dragged, or when the connection terminal and the cable move relative to each other due to other reasons, the cable and the connection terminal are prone to virtual connection or separation, resulting in connection failure. Therefore, it is necessary to improve the connection terminal to improve the connection reliability between the connection terminal and the cable, thereby ensuring the working reliability of the connector and the battery device.

[0080] After research, the inventors of the present application discovered that an anti-dropout portion can be provided in the crimping groove of the connecting terminal, especially in the area in contact with the insulating layer, and the cable can be prevented from dropping out by the anti-dropout portion, thereby improving the connection firmness between the cable and the connecting terminal and preventing the cable from falling out of the crimping groove.

[0081] Based on such a design concept, the inventor of the present application has designed a battery device, comprising at least one battery cell group and a connecting terminal, wherein the connecting terminal is used to electrically connect to the battery cell group through a cable. The connecting terminal comprises a docking portion, a crimping portion and an insulating layer anti-detachment portion, wherein the crimping portion is connected to the docking portion, and the crimping portion is provided with a crimping groove capable of accommodating the cable. A first region and a second region are provided on the inner surface of the crimping groove along the extension direction of the crimping groove, wherein the surface of the first region is used to contact the wire core of the cable, and the surface of the second region is used to contact the insulating layer of the cable, and the insulating layer anti-detachment portion is provided in the second region. By providing a crimping groove on the crimping portion, and providing a first region and a second region on the inner surface of the crimping groove, the wire core and the insulating layer of the cable are accommodated and crimped at the same time, thereby increasing the contact area between the cable and the connecting terminal, and facilitating improving the connection firmness between the cable and the connecting terminal. Furthermore, by providing an insulating layer anti-detachment portion in the second region, the insulating layer is anti-detached and limited, thereby preventing the insulating layer from escaping from the crimping portion, thereby further improving the connection firmness between the cable and the connecting terminal.

[0082] The embodiment of the present application also provides an electric device, which provides electric energy through the above-mentioned battery device. The electric device can be, but is not limited to, a mobile phone, a tablet, a laptop, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft, etc. Among them, the electric toy can include a fixed or mobile electric toy, for example, a game console, an electric car toy, an electric ship toy, and an electric airplane toy, etc., and the spacecraft can include an airplane, a rocket, a space shuttle, and a spacecraft, etc.

[0083] In some embodiments, the power-consuming device may be a vehicle. The vehicle may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery device is provided inside the vehicle, and the battery device may be provided at the bottom, head or tail of the vehicle. The battery device may be used to power the vehicle, for example, the battery device may be used as an operating power source for the vehicle. The vehicle may also include a controller and a motor, and the controller may be used to control the battery device to power the motor. For example, the battery device may be used for starting, navigating and operating power requirements of the vehicle during driving.

[0084] The structures of the battery device, the connection terminal and the electrical equipment provided in the embodiments of the present application are described below with reference to the accompanying drawings.

[0085] Please refer to Figure 1 , Figure 1A schematic diagram of the structure of a vehicle 1000 provided for some embodiments of the present application. Taking the vehicle 1000 as an example, the electrical equipment may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery device 100 is provided inside the vehicle 1000, and the battery device 100 may be provided at the bottom, head or tail of the vehicle 1000. The battery device 100 may be used to power the vehicle 1000, for example, the battery device 100 may be used as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300, and the controller 200 is used to control the battery device 100 to power the motor 300, for example, for starting, navigating and driving the vehicle 1000.

[0086] In some embodiments, the battery device 100 can not only serve as an operating power source for the vehicle 1000 , but also serve as a driving power source for the vehicle 1000 , replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000 .

[0087] Please refer to Figure 2 , Figure 2 The schematic diagram of the structure of the battery device 100 provided in some embodiments of the present application. In some embodiments, the battery device 100 includes a box body 10 and a battery cell group 20 , and the battery cell group 20 is accommodated in the box body 10 .

[0088] The box 10 is used to provide a storage space for the battery cell group 20, and the box 10 can adopt a variety of structures. In some embodiments, the box 10 may include a first part 11 and a second part 12, the first part 11 and the second part 12 cover each other, and the first part 11 and the second part 12 jointly define a storage space for accommodating the battery cell group 20. The second part 12 may be a hollow structure with one end open, and the first part 11 may be a plate-like structure, and the first part 11 covers the open side of the second part 12, so that the first part 11 and the second part 12 jointly define a storage space; the first part 11 and the second part 12 may also be hollow structures with one side open, and the open side of the first part 11 covers the open side of the second part 12. Of course, the box 10 formed by the first part 11 and the second part 12 can be in a variety of shapes, such as a cylinder, a cuboid, etc.

[0089] Please refer to Figure 2In the battery device 100, there may be multiple battery cell groups 20, and the multiple battery cell groups 20 may be connected in series, in parallel, or in mixed connection. Mixed connection means that the multiple battery cell groups 20 are both connected in series and in parallel. The multiple battery cell groups 20 may be directly connected in series, in parallel, or in mixed connection, and then the whole formed by the multiple battery cell groups 20 is accommodated in the box 10; of course, the battery device 100 may also be a battery module formed by connecting multiple battery cells in series, in parallel, or in mixed connection, and then the multiple battery modules are connected in series, in parallel, or in mixed connection to form a whole, and accommodated in the box 10. The battery device 100 may also include other structures, for example, the battery device 100 may also include a busbar component for realizing electrical connection between the multiple battery cell groups 20.

[0090] Please combine Figure 3 and Figure 4 , Figure 3 A schematic structural diagram of a first connection terminal 30 provided in some embodiments of the present application at a viewing angle; Figure 4 A schematic structural diagram of the first connection terminal 30 provided in some embodiments of the present application at another viewing angle.

[0091] The embodiment of the present application provides a battery device 100, which includes at least one battery cell group 20 and a connecting terminal 30, and the connecting terminal 30 is used to electrically connect to the battery cell group 20 through a cable. The connecting terminal 30 includes a docking portion 31, a crimping portion 32, and an insulating layer anti-detachment portion 3221, the crimping portion 32 is connected to the docking portion 31, and the crimping portion 32 is provided with a crimping groove 320 capable of accommodating a cable. A first area 321 and a second area 322 are provided on the inner surface of the crimping groove 320 along the extension direction of the crimping groove 320, the surface of the first area 321 is used to contact the wire core of the cable, the surface of the second area 322 is used to contact the insulating layer of the cable, and the insulating layer anti-detachment portion 3221 is provided in the second area 322.

[0092] The battery device 100 provided in the embodiment of the present application is configured to have a connection terminal 30 including a docking portion 31 and a crimping portion 32. The docking portion 31 is used to mate with the battery cell group 20 or other connection terminals, and the crimping portion 32 is used to connect with the cable. By providing a crimping groove 320 on the crimping groove 32, and providing a first area 321 and a second area 322 on the inner surface of the crimping groove 320, the wire core and the insulation layer of the cable are accommodated and crimped at the same time, thereby increasing the contact area between the cable and the connection terminal 30, which is beneficial to improving the connection firmness between the cable and the connection terminal 30. Furthermore, by providing an insulation layer anti-detachment portion 3221 in the second area 322, the insulation layer is prevented from detaching and limited, and the insulation layer is prevented from detaching from the crimping portion 32, thereby further improving the connection firmness between the cable and the connection terminal 30.

[0093] Specifically, the connection terminal 30 can be a male connection terminal or a female connection terminal. The connector includes a male connection terminal and a female connection terminal. The docking portion 31 of the male connection terminal and the docking portion 31 of the female connection terminal are configured as matching structures.

[0094] It is understandable that the connection terminal 30 proposed in the embodiment of the present application can be applicable to the electrical connection between battery cell groups 20 and the connection between battery cell groups 20 and other electrical components. The connection terminal 30 can be applied to any structure inside the battery device 100 that requires cable connection.

[0095] In some embodiments, in order to achieve connection between the docking portion 31 and the crimping portion 32 , the connection terminal 30 further includes a fixing portion 33 , and two ends of the fixing portion 33 are respectively connected to the docking portion 31 and the crimping portion 32 .

[0096] In some embodiments, in order to enable the crimping portion 32 to hold the cable tightly, the crimping portion 32 includes a main body 3201 and wing portions 3202, wherein the wing portions 3202 are arranged on both sides of the main body 3201 oppositely and at intervals, and the main body 3201 and the wing portions 3202 define a crimping groove 320. The cable is accommodated in the crimping groove 320, and the wing portions 3202 arranged oppositely can cooperate to clamp the cable to achieve clamping and fixing of the cable. When the cable is assembled with the crimping portion 32, the wings 3202 on both sides are opened away from each other to facilitate placing the cable into the crimping groove 320, and then the wings 3202 are bent into the crimping groove 320, so that the two folded wing portions 3202 clamp the cable.

[0097] Specifically, the first area 321 and the second area 322 are arranged at intervals, and a gap is arranged on the wing 3202 between the first area 321 and the second area 322. In this way, by setting the gap, the wing 3202 is divided into two parts, and the two parts face the first area 321 and the second area 322 respectively, so that the core and the insulation layer of the cable can be clamped independently. Since the thickness of the core and the insulation layer are not consistent, by clamping the core and the insulation layer independently, the problem that the thinner core cannot be clamped can be avoided.

[0098] In some embodiments, the insulation layer anti-detachment portion 3221 is configured as a protrusion disposed on the surface of the second region 322. By disposing the protrusion on the surface of the second region 322, the protrusion contacts and presses the insulation layer of the cable, thereby increasing the friction between the two, thereby increasing the crimping holding force of the crimping portion 32 on the insulation layer, thereby preventing the cable from being separated from the connection terminal 30.

[0099] Exemplarily, the protrusion is set to be hemispherical, with a relatively smooth surface, which can provide a squeeze force on the insulation layer of the cable while avoiding damage to the insulation layer. Of course, the protrusion can also be set to other shapes, such as triangle, cylinder, etc., and the shape of the protrusion is not limited here.

[0100] In some embodiments, the connection terminal 30 includes a plurality of insulation layer anti-detachment portions 3221 arranged at intervals. In this way, the plurality of insulation layer anti-detachment portions 3221 provide an anti-detachment force to the cable, thereby further improving the connection firmness between the cable and the crimping portion 32.

[0101] In some embodiments, a plurality of insulating layer anti-detachment portions 3221 are arranged at intervals from each other along a first direction, and the first direction is arranged at an angle γ with the extension direction of the crimping groove 320. In this way, multiple anti-detachment limit positions can be formed on the insulating layer in the circumferential direction of the cable, thereby providing a better anti-detachment effect on the cable.

[0102] Optionally, the angle γ is set to 90°, and the plurality of insulation layer anti-detachment portions 3221 are located on a plane perpendicular to the extension direction of the crimping groove 320. Of course, the angle γ can also be set to other angles, such as any value within the range of 60°-90°.

[0103] In some embodiments, Figure 3 and Figure 4 As shown, the connecting terminal 30 also includes a wire core anti-detachment portion 3211, which is arranged in the first area 321. By arranging the wire core anti-detachment portion 3211 on the surface of the first area 321, the wire core part of the cable is prevented from detaching and limited, and the crimping force of the crimping portion 32 on the cable is further improved.

[0104] Optionally, the wire core anti-slipping portion 3211 is configured as a first groove provided in the first region 321, the first groove extends along a first preset path, and the extension direction of the first preset path is provided at an angle β to the extension direction of the crimping groove 320. In this way, by providing the first groove on the surface of the first region 321 to increase the friction force; and by providing the extension path of the first groove as above, multiple anti-slipping limit positions can be formed on the wire core in the circumferential direction of the cable, thereby providing a better anti-slipping effect on the cable.

[0105] Specifically, the angle β satisfies the condition: 60°≤β≤90°. Within this angle range, the crimping groove 320 has a larger inclination angle relative to the extension direction of the crimping groove 320 (ie, the extension direction of the cable), thereby providing a larger anti-slip force in the circumferential direction of the wire core.

[0106] In some embodiments, the connection terminal 30 includes a plurality of wire core anti-detachment portions 3211, and the plurality of wire core anti-detachment portions 3211 are spaced apart from each other and arranged in parallel. By providing a plurality of wire core anti-detachment portions 3211 spaced apart from each other and arranged in parallel, the setting range of the wire core anti-detachment portions 3211 is increased, thereby further improving the connection firmness between the first area 321 and the wire core.

[0107] See also Figure 5 , Figure 5 This is a schematic diagram of the structure of the second connection terminal 30 provided in some embodiments of the present application. In some embodiments, in order to further improve the connection firmness between the connection terminal 30 and the cable, a third area 323 is further provided on the inner surface of the crimping groove 320. The third area 323 and the second area 322 are arranged at intervals along the extension direction of the crimping groove 320, and the surface of the third area 323 is used to contact the insulation layer of the cable. By providing the third area 323, the insulation layer of the cable is further connected and fixed, so as to further improve the connection firmness between the connection terminal 30 and the cable.

[0108] In some embodiments, along the extension direction of the crimping groove 320, the third area 323 is disposed on a side of the second area 322 away from the first area 321. That is, the third area 323 is located at the end of the connection terminal 30, assisting the second area 322 to further crimp and fix the insulation layer of the cable.

[0109] It is understandable that the third area 323 may also be disposed between the first area 321 and the second area 322 , which can also improve the connection firmness between the crimping portion 32 and the cable.

[0110] Optionally, the third region 323 has substantially the same main structure as the second region 322, and the third region 323 can be constructed by extending the crimping portion 32. A notch is also provided on the wing 3202 between the second region 322 and the third region 323 to form the wing 3202 facing the third region 323, and the cable insulation layer in the third region 323 can be clamped by independently bending the wing 3202 facing the third region 323.

[0111] In order to improve the crimping effect of the third area 323 on the cable, the connection terminal 30 further includes an auxiliary anti-slipping portion 3231, which is disposed in the third area 323. By providing the auxiliary anti-slipping portion 3231, the insulating layer of the cable is prevented from slipping out of the third area 323, thereby ensuring the crimping effect of the third area 323 on the cable.

[0112] In some embodiments, the auxiliary anti-slip portion 3231 is configured as a second groove disposed on the surface of the third region 323, the second groove extending along a second preset path, and the extension direction of the second preset path forms an angle α with the extension direction of the crimping groove 320. In this way, by disposing the second groove on the surface of the third region 323 to increase the friction force, and by disposing the extension path of the second groove as above, multiple anti-slip limit positions can be formed on the insulation layer in the circumferential direction of the cable, thereby being able to form a better anti-slip effect on the cable.

[0113] Optionally, the angle α satisfies the condition: 60°≤α≤90°. It should be noted that the second groove may adopt the same structure as the first groove, and the specific structure of the second groove is not described in detail herein.

[0114] In some embodiments, one auxiliary anti-detachment portion 3231 is provided.

[0115] In some other embodiments, the connection terminal 30 includes a plurality of auxiliary anti-detachment portions 3231, and the plurality of auxiliary anti-detachment portions 3231 are spaced apart from each other and arranged in parallel. By providing a plurality of auxiliary anti-detachment portions 3231 spaced apart from each other and arranged in parallel, the setting range of the auxiliary anti-detachment portions 3231 is increased, thereby further improving the connection firmness between the third area 323 and the cable.

[0116] It is easy to understand that in some other embodiments, the insulating layer anti-detachment portion 3221 can also be constructed as a groove structure, which can also achieve the effect of increasing the friction between the crimping portion 32 and the insulating layer to prevent the cable from being separated from the connecting terminal 30. The groove structure of the insulating layer anti-detachment portion 3221 can adopt the same structure as the first groove and the second groove, which will not be repeated here.

[0117] Similarly, the wire core anti-detachment portion 3211 and the auxiliary anti-detachment portion 3231 may also be constructed as a protruding structure, and may adopt the same protruding structure as the insulating layer anti-detachment portion 3221, which will not be repeated here.

[0118] In some embodiments, the battery device 100 includes two connection terminals 30, wherein the mating portion 31 of one connection terminal 30 is set as a male end, and the mating portion 31 of the other connection terminal 30 is set as a female end, and the male end and the female end are matched. By providing two connection terminals 30, the two connection terminals 30 are respectively connected to two cables to be connected, so that the two cables are firmly connected through the matching of the two connection terminals 30.

[0119] The battery device 100 provided in the embodiment of the present application includes at least one battery cell group 20 and a connecting terminal 30, and the connecting terminal 30 is used to electrically connect to the battery cell group 20 through a cable. The connecting terminal 30 includes a docking portion 31, a crimping portion 32 and a fixing portion 33, and the fixing portion 33 connects the docking portion 31 and the crimping portion 32. The crimping portion 32 is provided with a crimping groove 320, and the cable to be connected is accommodated in the crimping groove 320. In order to ensure the firmness of the connection of the cable in the crimping groove 320, a first area 321, a second area 322 and a third area 323 are sequentially provided on the inner surface of the crimping groove 320 along the extension direction of the crimping groove 320, and the surface of the first area 321 is used to contact the core of the cable, and the surfaces of the second area 322 and the third area 323 are used to contact the insulation layer of the cable. Furthermore, the first area 321 is provided with a wire core anti-detachment portion 3211, the second area 322 is provided with an insulating layer anti-detachment portion 3221, and the third area 323 is provided with an auxiliary anti-detachment portion 3231. By providing each anti-detachment portion, the cable is prevented from detaching from the crimping portion 32, thereby further improving the connection firmness between the cable and the connecting terminal 30 and ensuring the reliability of the battery device 100.

[0120] The embodiment of the present application also provides a connection terminal 30, which includes a docking portion 31, a crimping portion 32 and an insulation layer anti-detachment portion 3221. The crimping portion 32 is connected to the docking portion 31, and the crimping portion 32 is configured with a crimping groove 320 that can accommodate and clamp the cable; the inner surface of the crimping groove 320 is provided with a first area 321 and a second area 322 along the extension direction of the crimping groove 320, the surface of the first area 321 is in contact with the wire core of the cable, and the surface of the second area 322 is in contact with the insulation layer of the cable; the insulation layer anti-detachment portion 3221 is provided in the second area 322. The specific structure of the connection terminal 30 is the same as the structure of the connection terminal 30 in the above-mentioned battery device 100, and will not be repeated here.

[0121] It should be noted that the connection terminal 30 provided in the embodiment of the present application is not only applicable to the battery device 100, but also applicable to other electrical devices with connection requirements. The specific applicable devices and applicable scenarios of the connection terminal 30 and the connector are not limited here.

[0122] An embodiment of the present application further provides an electrical device, comprising the battery device 100 provided in any of the above embodiments, and the battery device 100 is used to provide electrical energy.

[0123] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A battery device, characterized in that: include: at least one battery cell group; as well as A connecting terminal, used to electrically connect to the battery cell group through a cable; The connecting terminal comprises: Docking section; A crimping portion connected to the docking portion, the crimping portion being provided with a crimping groove capable of accommodating the cable; a first area and a second area are provided on the inner surface of the crimping groove along the extension direction of the crimping groove, the surface of the first area being used to contact with the wire core of the cable, and the surface of the second area being used to contact with the insulation layer of the cable; The insulating layer anti-stripping portion is arranged in the second area.

2. The battery device according to claim 1, characterized in that: The insulating layer separation prevention portion is configured as a protrusion disposed on the surface of the second region.

3. The battery device according to claim 2, characterized in that: The connecting terminal includes a plurality of insulating layer anti-detachment portions arranged at intervals.

4. The battery device according to claim 3, characterized in that: A plurality of the insulating layer anti-stripping portions are arranged spaced apart from each other along a first direction; The first direction is arranged at an angle γ with the extending direction of the crimping groove.

5. The battery device according to claim 1, characterized in that: The connecting terminal also includes a wire core anti-dropping portion; The wire core anti-dropping portion is arranged in the first area.

6. The battery device according to claim 5, characterized in that: The wire core anti-dropping portion is configured as a first groove disposed in the first area; The first groove extends along a first preset path, and an extending direction of the first preset path forms an included angle β with an extending direction of the crimping groove.

7. The battery device according to claim 6, characterized in that: The angle β satisfies the condition: 60°≤β≤90°。 8. The battery device according to claim 6, characterized in that: The connecting terminal includes a plurality of the wire core anti-detachment parts; The plurality of wire core anti-dropping portions are spaced apart from each other and arranged in parallel.

9. The battery device according to any one of claims 1 to 8, characterized in that: A third area is also provided on the inner surface of the crimping groove. The third area and the second area are arranged at intervals along the extending direction of the crimping groove. The surface of the third area is used to contact the insulating layer of the cable.

10. The battery device according to claim 9, characterized in that: Along the extending direction of the crimping groove, the third area is arranged on a side of the second area away from the first area.

11. The battery device according to claim 9, characterized in that: The connecting terminal further includes an auxiliary anti-detachment portion, and the auxiliary anti-detachment portion is disposed in the third area.

12. The battery device according to claim 11, characterized in that: The auxiliary anti-slip portion is configured as a second groove disposed on the surface of the third region; The second groove extends along a second preset path, and an extending direction of the second preset path forms an angle α with an extending direction of the crimping groove.

13. The battery device according to claim 12, characterized in that: The connecting terminal includes a plurality of auxiliary anti-detachment portions, and the plurality of auxiliary anti-detachment portions are spaced apart from each other and arranged in parallel.

14. The battery device according to any one of claims 1 to 8, characterized in that: The connecting terminal further comprises a fixing portion, wherein the fixing portion connects the butting portion and the crimping portion; the crimping portion comprises: the main body; and Wings are arranged on both sides of the main body opposite to and spaced apart from each other, and the main body and the wing define the crimping groove; Wherein, the cable is accommodated in the crimping groove, and the wings arranged opposite to each other can cooperate to clamp the cable.

15. The battery device according to claim 14, characterized in that: The first area and the second area are arranged at intervals; The wing portion is provided with a gap between the first area and the second area.

16. The battery device according to any one of claims 1 to 8, characterized in that: The battery device comprises two connecting terminals, wherein the mating portion of one of the connecting terminals is configured as a male terminal, and the mating portion of the other connecting terminal is configured as a female terminal, and the male terminal and the female terminal are matched.

17. A connecting terminal, characterized in that: The connecting terminal comprises: Docking section; A crimping portion connected to the butting portion, the crimping portion being configured with a crimping groove capable of accommodating and clamping a cable; a first area and a second area are provided on an inner surface of the crimping groove along an extending direction of the crimping groove, the surface of the first area is in contact with a core of the cable, and the surface of the second area is in contact with an insulating layer of the cable; The insulating layer anti-stripping portion is arranged in the second area.

18. An electrical equipment, characterized in that: The invention comprises a battery device as claimed in any one of claims 1 to 16, wherein the battery device is used to provide electrical energy.

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