Ground terminal and battery pack

Abstract

The present application discloses a grounding terminal and a battery pack, which relate to the field of power battery technology. The grounding terminal includes a wire crimping piece and a clamping assembly. The wire crimping piece is provided with a wiring groove for installing a ground wire; the clamping assembly includes a main body and a holding piece, both of which can be electrically connected to the ground wire. The main body is connected to the wire crimping piece, and the main body is provided with a cavity and an installation opening connected to the cavity. The holding piece is fixed to the main body and is at least partially located in the cavity. The holding piece and the side wall of the cavity can clamp the bracket, or the holding piece can clamp the bracket. The grounding terminal provided in the present application can realize the installation of the grounding terminal and the bracket of the battery pack case through an insertion action, and realize the grounding effect through the bracket of the battery pack case. Compared with the existing grounding structure, there is no need to use a locking tool for installing bolts or nuts and the locking installation step is eliminated, which simplifies the installation process, is easy to operate, and is easy to assemble, thereby improving the installation efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of power batteries, and in particular to a grounding terminal and a battery pack. Background Art

[0002] Power battery packs are the power source for new energy vehicles. In related technologies, the low-voltage power supply circuit within a power battery pack is typically connected to the ground of its enclosure using over-the-air terminals. These terminals are bolted or nut-locked to the enclosure's ground structure. This requires riveting bolts or nuts to secure the over-the-air terminals, making installation cumbersome and costly. Summary of the Invention

[0003] In view of this, the purpose of this application is to provide a grounding terminal and a battery pack, aiming to solve the technical problem of cumbersome installation of the grounding structure in the prior art.

[0004] To achieve the above objectives, the technical solutions adopted in this application are as follows:

[0005] In a first aspect, an embodiment of the present application provides a grounding terminal for connecting a bracket of a battery pack case, the grounding terminal comprising:

[0006] A wire pressing piece with a wiring slot for installing a ground wire;

[0007] The clamping assembly includes a main body and a holding member, both of which can be electrically connected to the ground wire. The main body is connected to the wire pressing member. The main body is provided with a cavity and an installation opening connected to the cavity. The holding member is fixed to the main body and is at least partially located in the cavity. The holding member and the side wall of the cavity can clamp the bracket, or the holding member can clamp the bracket.

[0008] In one embodiment of the first aspect, the body comprises:

[0009] A first plate body connected to the wire pressing member;

[0010] The second plate and the third plate are both connected to the first plate and arranged opposite to each other. The first plate, the second plate and the third plate surround and form the cavity. The supporting member is fixed to the second plate and / or the third plate.

[0011] In one embodiment of the first aspect, the supporting member includes a first supporting member, one end of which is connected to the second plate body and / or one end of the third plate body away from the first plate body, and the other end is inclined toward the main body and provided with serrations.

[0012] In one embodiment of the first aspect, a first preset angle α is formed between the plane where the first supporting member is located and the plane where the second plate is located, and / or a first preset angle α is formed between the plane where the first supporting member is located and the plane where the third plate is located, and α satisfies: 20°≤α≤40°.

[0013] In one embodiment of the first aspect, the number of the first resisting members is four, the second plate body and the third plate body are respectively provided with two first resisting members, and the four first resisting members are symmetrically arranged about the plane where the center line of the first plate body is located.

[0014] In one embodiment of the first aspect, the supporting member further includes a second supporting member, one end of which is connected to the second plate body and / or the third plate body toward one end of the cavity, and the other end is inclined toward the first plate body and is provided with serrations.

[0015] In one embodiment of the first aspect, the second plate body and / or the third plate body is provided with an escape opening, and the second supporting member is directly opposite to the escape opening.

[0016] In one embodiment of the first aspect, the wire pressing member includes:

[0017] The main body, the wiring slot is arranged in the main body, and the main body is provided with a first wing and a second wing at intervals along its own extension direction, and the first wing and the second wing respectively surround at least a part of the wiring slot.

[0018] In one embodiment of the first aspect, the wiring slot includes an inlet end, the inlet end has an opening formed at one end of the body, the first wing is arranged close to the inlet end, and the second wing is located on the side of the first wing away from the inlet end.

[0019] In a second aspect, an embodiment of the present application provides a battery pack, which includes a bracket and a grounding terminal as described above, wherein the grounding terminal is plugged into the bracket.

[0020] Compared with the prior art, the beneficial effects of the present application are as follows: the present application proposes a grounding terminal, which includes a connected wire crimping member and a clamping assembly, the wire crimping member is provided with a wiring groove for installing a ground wire, the clamping assembly includes a main body and a holding member, both of which can be electrically connected to the ground wire, the main body is provided with a cavity and a mounting port connected to the cavity, the holding member is fixed to the main body and is at least partially located in the cavity, the grounding terminal is plugged into the bracket of the battery pack case through the mounting port, the holding member and the side wall of the cavity can clamp the bracket, or the holding member can clamp the bracket to prevent the bracket from detaching from the main body, thereby achieving the installation of the grounding terminal and the bracket of the battery pack case. The grounding terminal provided by the present application can be installed with the bracket of the battery pack case by an insertion action, and the grounding function is achieved through the bracket of the battery pack case. Compared with the existing grounding structure, there is no need to use locking tools such as mounting bolts or nuts and the locking installation steps are eliminated, the installation process is simplified, the operation is convenient, the installation efficiency is improved, and the production cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 shows a schematic diagram of the three-dimensional structure of the grounding terminal in some embodiments of the present application;

[0023] Figure 2 A schematic diagram showing a ground terminal from one perspective in some embodiments of the present application is shown;

[0024] Figure 3 Shown Figure 2 Schematic diagram of the left side structure of the middle ground terminal;

[0025] Figure 4 Shown Figure 2 Schematic diagram of the right side structure of the middle ground terminal;

[0026] Figure 5 A schematic diagram of the three-dimensional structure of a wire pressing member in some embodiments of the present application is shown;

[0027] Figure 6 A schematic diagram of the three-dimensional structure of the clamping assembly in some embodiments of the present application is shown;

[0028] Figure 7 A schematic diagram of the assembly of a ground terminal and a bracket of a battery pack box from one perspective is shown in some embodiments of the present application;

[0029] Figure 8A schematic diagram of the assembly of the ground terminal and the bracket of the battery pack box from another perspective in some embodiments of the present application is shown.

[0030] Description of main component symbols:

[0031] 100-grounding terminal; 110-wire pressing member; 111-wiring slot; 1111-wire inlet; 112-main body; 1121-first main body section; 1122-second main body section; 1123-third main body section; 1124-fourth main body section; 113-first wing; 114-second wing; 115-reinforcement; 120-clamping assembly; 1201-main body; 121-supporting member; 1211-first supporting member; 1212-sawtooth; 1213-second supporting member; 122-first plate; 123-second plate; 124-third plate; 125-avoidance; 200-bracket; 300-ground wire. DETAILED DESCRIPTION

[0032] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0033] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0035] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0036] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0037] like Figure 7 and Figure 8 As shown, an embodiment of the present application provides a grounding terminal 100 for connecting a ground wire to a bracket 200 of a battery pack case, and achieving grounding through the bracket 200 of the battery pack case.

[0038] Combine Figures 1 to 3 As shown, the grounding terminal 100 includes a wire pressing member 110 and a clamping assembly 120 .

[0039] A wiring slot 111 for installing the ground wire 300 is provided in the wire pressing member 110 . The ground wire 300 is connected to the wire pressing member 110 by installing the ground wire in the wiring slot 111 .

[0040] The clamping assembly 120 is connected to the wire pressing member 110 and is mainly used to limit and fix the bracket 200 of the battery pack case. The clamping assembly 120 includes a main body 1201 and a holding member 121, both of which can be electrically connected to the ground wire. The main body 1201 is connected to the wire pressing member 110. The main body 1201 has a cavity (not shown) and a mounting port (not shown) connected to the cavity. The holding member 121 is fixed to the main body 1201 and is at least partially located in the cavity. The holding member 121 and the side wall of the cavity can clamp the bracket 200, or the holding member 121 can clamp the bracket 200.

[0041] The grounding terminal 100 provided in the embodiment of the present application, when connected to the bracket 200 of the battery pack case, the clamping assembly 120 is inserted into the bracket 200 from the installation port, and the side wall of the cavity of the main body 1201 cooperates with the abutment 121 inside it to clamp the bracket 200, or the abutment 121 clamps the bracket 200 to prevent the bracket 200 from detaching from the main body 1201, thereby realizing the installation of the grounding terminal 100 and the bracket 200 of the battery pack case.

[0042] In this embodiment, the installation with the bracket 200 of the battery pack case can be achieved through the insertion action, and the grounding effect is achieved through the bracket 200 of the battery pack case. Compared with the existing grounding structure, there is no need to use locking tools such as installation bolts or nuts and the locking installation steps are omitted, which simplifies the installation process, facilitates operation, improves installation efficiency, reduces production costs, and thus improves the market competitiveness of the product.

[0043] Combine Figure 3 and Figure 4 As shown, in one embodiment, optionally, the main body 1201 includes: a first plate body 122 , a second plate body 123 and a third plate body 124 .

[0044] One end of the first plate 122 is connected to the wire pressing member 110, the second plate 123 and the third plate 124 are both connected to the first plate 122 and arranged opposite to each other, the second plate 123, the first plate 122 and the third plate 124 are jointly arranged to form the above-mentioned cavity, and the supporting member 121 is fixed to the second plate 123 and / or the third plate 124.

[0045] In this embodiment, the second plate 123 and the third plate 124 are respectively connected to opposite ends of the first plate 122. The following description uses the example of the abutting member 121 being disposed on the second plate 123. During installation, the second plate 123 and the third body 112 are gripped with fingers to position the mounting opening of the grounding terminal 100 at the edge of the bracket 200 to be installed. The main body 1201 is then fully inserted into the bracket 200 by pressing the first plate 122. At this point, the abutting member 121 of the second plate 123 abuts the bracket 200, and cooperates with the third plate 124 to retain the bracket 200 within the main body 1201, preventing it from falling out. This secures the grounding terminal 100 to the bracket 200, simplifying the assembly process and improving assembly efficiency.

[0046] It is understood that, in another embodiment, the abutment 121 is disposed on the third plate 124. During installation, the main body 1201 is inserted into the bracket 200, and the abutment 121 of the third plate 124 abuts against the bracket 200, cooperating with the second plate 123 to retain the bracket 200 within the main body 1201, preventing the bracket 200 from falling out. This also achieves the same fixation between the ground terminal 100 and the bracket 200.

[0047] like Figure 1 and Figure 6 As shown, in another embodiment, abutment 121 is provided on both the second plate 123 and the third plate 124. During installation, the main body 1201 is inserted into the bracket 200. At the same time, the abutment 121 of the second plate 123 and the abutment 121 on the third plate 124 abut against the bracket 200 and clamp the bracket 200 to prevent the bracket 200 from falling out of the main body 1201, making its limiting fixation more secure, thereby improving both reliability and assembly efficiency.

[0048] like Figures 2 to 4 As shown, in one embodiment, optionally, the supporting member 121 includes a first supporting member 1211, one end of the first supporting member 1211 is connected to the end of the second plate 123 and / or the third plate 124 away from the first plate 122, and the other end is inclined toward the cavity and is provided with a serration 1212.

[0049] In one embodiment of the above-mentioned first abutting member 1211, for example, one end of the first abutting member 1211 is connected to an end of the second plate 123 facing away from the first plate 122, and the other end of the first abutting member 1211 is tilted toward the cavity and is provided with serrations 1212. When the grounding terminal 100 is connected to the bracket 200 of the battery pack case, the end of the first abutting member 1211 having the serrations 1212 abuts against the bracket 200. The serrations 1212 are made of a rigid material. When the tips of the serrations 1212 abut against the bracket 200, the serrations 1212 do not easily undergo plastic deformation, causing the grounding terminal 100 to be stuck on the bracket 200 and unable to easily loosen in the direction opposite to the insertion direction. This acts as a limiter on the bracket 200, thereby fixing the grounding terminal 100 to the bracket 200. In addition, during the process of inserting the clamping assembly 120 into the bracket 200, the tip of the serration 1212 will scrape off the paint surface of the bracket 200, so that the serration 1212 is in direct contact with the metal base material of the bracket 200, thereby improving the conductivity. Compared with the existing grounding structure, there is no need to spray conductive paint on the bracket 200, which reduces the process and consumables of spraying conductive paint, reduces costs, and thus improves the market competitiveness of the product.

[0050] In another embodiment of the first abutting member 1211, for example, one end of the first abutting member 1211 is connected to the end of the third plate 124 facing away from the first plate 122, and the other end of the first abutting member 1211 is tilted toward the cavity and provided with serrations 1212. The functions and effects produced are the same as those in the embodiment in which the first abutting member 1211 is provided on the second plate 123, and therefore will not be described in detail here.

[0051] It is understood that in another embodiment of the above-mentioned first abutting member 1211, for example, two first abutting members are provided, one end of one first abutting member 1211 is connected to the second plate 123, and one end of the other first abutting member 1211 is connected to the third plate 124. The other ends of both first abutting members 1211 are inclined toward the cavity and are provided with serrations 1212. When the grounding terminal 100 is connected to the bracket 200 of the battery pack case, the two sides of the bracket 200 are respectively abutted by the tips of the serrations 1212 of the two first abutting members 1211, preventing the grounding terminal 100 from loosening in the direction opposite to the insertion direction, further strengthening the fixation of the grounding terminal 100 to the bracket 200. At the same time, the tips of the serrations 1212 scrape off the paint surface of the bracket 200, allowing the serrations 1212 to directly contact the metal base of the bracket 200, ensuring good electrical conductivity.

[0052] like Figure 3 As shown, in any embodiment of the above-mentioned abutting member 121 having a first abutting member 1211, optionally, a first preset angle α is formed between the plane where the first abutting member 1211 is located and the plane where the second plate 123 is located, and / or a first preset angle α is formed between the plane where the first abutting member 1211 is located and the plane where the third plate 124 is located, and α satisfies: 20°≤α≤40°. The first abutting member 1211 is inclined toward the interior space of the main body 1201. In this way, when the grounding terminal 100 is connected to the bracket 200 of the battery pack case, the end of the first abutting member 1211 having the serrations 1212 acts as a push against the bracket 200. The inclined first abutting member 1211 can exert a certain amount of pressure on the bracket 200, making the fixing effect of the grounding terminal 100 on the bracket 200 more reliable.

[0053] Illustratively, a first preset angle α of 20° is formed between the plane where the first supporting member 1211 is located and the plane where the third plate 124 is located. The inclination angle of 20° just makes one end of the serration 1212 of the first supporting member 1211 abut against the bracket 200, which can prevent loosening from the opposite direction of the insertion direction, and avoid the first preset angle α being too small to limit the bracket 200. At the same time, it can also ensure that when the grounding terminal 100 is installed on the bracket 200 of the battery pack case, the serration 1212 of the first supporting member 1211 can scrape off the paint surface of the bracket 200, so that the serration 1212 is in direct contact with the metal base material of the bracket 200 to ensure conductivity.

[0054] For another example, a first preset angle α of 40° is formed between the plane where the first supporting member 1211 is located and the plane where the third plate 124 is located. The inclination angle of 40° just makes one end of the serration 1212 of the first supporting member 1211 abut against the bracket 200 and can limit and fix the bracket 200. At the same time, it can avoid the first preset angle α being too large, and the tip of the serration 1212 scratching or scratching through the metal base material of the bracket 200, thereby improving the reliability of the product.

[0055] In addition, the adjustment of the first preset angle α can clamp the brackets 200 of different thicknesses, thereby increasing the applicable range of the ground terminal 100 .

[0056] It should be noted that, in this embodiment, the first preset angle α is selected as 30°. Of course, in other embodiments, the first preset angle α may also be selected as 20°, 25°, 33°, 38°, 40°, etc., which are not listed here.

[0057] like Figure 6 As shown, in any of the above-mentioned embodiments in which the retaining member 121 includes a first retaining member 1211, further, there are four first retaining members 1211, two of which are provided on each of the second plate 123 and the third plate 124. The four first retaining members 1211 are symmetrically arranged about the plane containing the centerline of the first plate 122. Thus, when the ground terminal 100 is connected to the bracket 200 of the battery pack case, the four symmetrical first retaining members 1211 each abut against the bracket 200, thereby balancing the force acting on the bracket 200 and improving the stability of the ground terminal 100 fixed to the bracket 200.

[0058] like Figure 2 、 Figure 3 and Figure 6 As shown, in other embodiments, the resisting member 121 further includes a second resisting member 1213 , and the clamping assembly 120 can be provided with the second resisting member 1213 alone.

[0059] Specifically, one end of the second supporting member 1213 is connected to one end of the second plate 123 and / or the third plate 124 facing the cavity, and the other end is inclined toward the first plate 122 and is provided with a serration 1212 .

[0060] In an embodiment in which the supporting member 121 only includes the second supporting member 1213, for example, taking the example of the second supporting member 1213 being fixed to the second plate body 123, when the grounding terminal 100 is connected to the bracket 200 of the battery pack case, the clamping assembly 120 is inserted into the bracket 200, and the tip of the serration 1212 is pressed against the bracket 200. Since the serration 1212 is made of a rigid material, it will not undergo plastic deformation, so that the grounding terminal 100 can be clamped on the bracket 200 and cannot be loosened from the opposite direction of the insertion direction, thereby fixing the grounding terminal 100 on the bracket 200. Similarly, during the process of inserting the clamping assembly 120 into the bracket 200, the tip of the serration 1212 will scrape off the paint surface of the bracket 200, so that the serration 1212 is in direct contact with the metal base material of the bracket 200, thereby improving the conductivity. The second abutment 1213 also does not require additional spraying of conductive paint on the bracket 200 compared to the existing grounding structure, thereby reducing the process and consumables of spraying conductive paint and reducing costs.

[0061] In another embodiment of the second abutting member 1213, for example, one end of the second abutting member 1213 is connected to the end of the third plate 124 facing the interior of the cavity, and the other end is arranged obliquely toward the first plate 122 and is provided with serrations 1212. The functions and effects produced are the same as those of the embodiment in which the two abutting members 121 are arranged on the second plate 123, and therefore will not be described in detail here.

[0062] It is understood that in another embodiment of the second abutting member 1213, for example, two second abutting members are provided, one end of one second abutting member 1213 is connected to the end of the second plate 123 facing the interior of the cavity, and one end of the other second abutting member 1213 is connected to the end of the third plate 124 facing the cavity, and the other ends of the two second abutting members are both inclined toward the first plate 122 and provided with serrations 1212. They also play the role of limiting and fixing the bracket 200 and ensuring conductivity, which will not be described in detail here.

[0063] like Figure 1 As shown, it should be noted that, in other embodiments, the supporting member 121 may also include a first supporting member 1211 and a second supporting member 1213 at the same time. The effects are as described in the above embodiments, and will not be explained one by one here.

[0064] In any of the above embodiments in which the resisting member 121 further includes the second resisting member 1213 , the second plate 123 and / or the third plate 124 is provided with an escape opening 125 , and the second resisting member 1213 is directly opposite to the escape opening 125 .

[0065] In this embodiment, if the second supporting member 1213 is provided on the second plate 123, an escape opening 125 is opened in the middle of the second plate 123. In this way, when the grounding terminal 100 is connected to the bracket 200 of the battery pack case, the user can observe the connection status of the grounding terminal 100 and the bracket 200 of the battery pack case through the escape opening 125, such as whether the grounding terminal 100 is installed in place, whether the serrations 1212 scrape off the paint surface on the bracket 200 of the battery pack case, etc., for easy inspection.

[0066] It is understandable that when the second supporting member 1213 is disposed on the third plate 124 , the avoidance opening 125 is opened on the third plate 124 , and the effect produced is the same as described above.

[0067] In one embodiment, the first supporting member 1211 , the second supporting member 1213 , the first plate 122 , the second plate 123 , and the third plate 124 are integrally formed.

[0068] In this embodiment, the first supporting member 1211, the second supporting member 1213, the first plate body 122, the second plate body 123 and the third plate body 124 are an integrally formed structure. On the one hand, the probability of fracture between the four is reduced, and the reliability of the product is improved. On the other hand, the integral molding is convenient for production and manufacturing, improves production efficiency and reduces production costs.

[0069] For example, in the above embodiment, the first supporting member 1211, the second supporting member 1213, the first plate 122, the second plate 123, and the third plate 124 are made of spring steel (e.g., 65Mn, 60Si2Mn, 60CrMnA, etc.). Of course, it is understood that in other embodiments, other rigid metal materials may also be selected.

[0070] like Figures 3 to 5 As shown, in any of the above embodiments, the wire crimping member 110 optionally includes a body 112, which is semi-cylindrical and matches the shape of the ground wire 300 for easy installation. A wiring slot 111 is provided within the body 112. The body 112 is provided with a first wing 113 and a second wing 114 spaced apart along its extension direction, and the first wing 113 and the second wing 114 each surround at least a portion of the wiring slot 111. In this way, the ground wire 300 can be pre-installed in the wiring slot 111 within the body 112, and then the first wing 113 and the second wing 114 are bent to crimp and secure the core and sheath of the ground wire 300, respectively.

[0071] like Figure 2As shown, further, the height H of the first wing 113 is greater than the height h of the second wing 114, that is, the length of the first wing 113 is longer than the length of the second wing 114, so as to facilitate fixing the core of the ground wire 300 through the second wing 114, and fixing the wire skin of the ground wire 300 through the first wing 113.

[0072] Continue reading Figure 1 and Figure 5 In one embodiment in which the wire crimping member 110 includes a body 112, the wiring slot 111 further includes an inlet end 1111 having an opening formed at one end of the body 112. A first wing 113 is disposed proximate to the inlet end 1111, and a second wing 114 is disposed on a side of the first wing 113 facing away from the inlet end 1111. When the ground wire 300 needs to be assembled onto the wire crimping member 110, the ground wire 300 is inserted into the wiring slot 111 through the opening of the inlet end 1111. The second wing 114, which is away from the opening, crimps and fixes the core of the ground wire 300, and the first wing 113, which is proximate to the inlet end 1111, crimps and fixes the sheath of the ground wire 300, thereby achieving installation and fixation of the ground wire 300.

[0073] It should be noted that the size of the semi-cylindrical body 112 and the sizes of the first wing 113 and the second wing 114 can be set according to the wire diameters of different ground wires 300, so as to match different ground wires 300 and improve the practicality of the product.

[0074] Furthermore, from the end of the body 112 connected to the clamping assembly 120 to the end of the body 112 away from the clamping assembly 120, the body 112 includes a first body segment 1121, a second body segment 1122, a third body segment 1123, and a fourth body segment 1124, which are sequentially connected. The first body segment 1121 is connected to the first plate 122. The radius of the first body segment 1121 gradually increases as it approaches the incoming line end 1111. The radius of the second body segment 1122 is smaller than the radius of the fourth body segment 1124. The radius of the third body segment 1123 gradually increases as it approaches the incoming line end 1111. This allows the first and second body segments 1121 and 1122 to be positioned at the core crimping position of the ground wire 300, while the third and fourth body segments 1123 and 1124 to be positioned at the sheath crimping position of the ground wire 300, thereby facilitating the securing of the ground wire 300 within the wiring slot 111.

[0075] Furthermore, two first wings 113 and two second wings 114 are respectively provided, the two second wings 114 are provided in the second body section 1122 and are located on opposite sides of the wiring groove 111, and the two first wings 113 are provided in the fourth body section 1124 and are located on opposite sides of the wiring groove 111. The two opposite first wings 113 are conveniently bent and crimped onto the wire skin of the ground wire 300. At the same time, the two opposite second wings 114 are conveniently bent and crimped onto the wire core of the ground wire 300, so as to facilitate the crimping and fixation of the ground wire 300.

[0076] Please refer to further Figure 2 In the above embodiment, the wire crimping member 110 further includes a reinforcement portion 115. The reinforcement portion 115 is connected between the clamping assembly 120 and the second wing 114 and is connected to the first body section 1121. The surface of the reinforcement portion 115 is curved. Thus, when the second wing 114 is crimped and secured to the ground wire 300, the reinforcement portion 115 increases the structural strength of the first body section 1121, preventing it from twisting and deforming, thereby improving product reliability.

[0077] The grounding terminal 100 provided in the embodiment of the present application, when connected to the bracket 200 of the battery pack case, is clamped by inserting the clamping assembly 120 into the bracket 200. The side walls of the cavity of the main body 1201 cooperate with the abutment 121 therein to clamp the bracket 200, preventing the bracket 200 from being separated from the main body 1201, thereby achieving the installation of the grounding terminal 100 and the bracket 200 of the battery pack case. The installation with the bracket 200 of the battery pack case can be achieved through the insertion action, and the grounding function is achieved through the bracket 200 of the battery pack case. Compared with the existing grounding structure, there is no need to use locking tools such as mounting bolts or nuts and the locking installation steps are eliminated, which simplifies the installation process, facilitates operation, improves installation efficiency, and reduces production costs. At the same time, a serration 1212 is provided at one end of the abutting member 121 that abuts the bracket 200. The serration 1212 is made of a rigid material. During the process of inserting the clamping assembly 120 into the bracket 200, the tip of the serration 1212 will scrape off the paint surface of the bracket 200, so that the serration 1212 is in direct contact with the metal base material of the bracket 200, thereby improving the conductivity. Compared with the existing grounding structure, there is no need to spray conductive paint on the bracket 200, which reduces the process and consumables of spraying conductive paint, reduces costs, and thus improves the market competitiveness of the product.

[0078] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0079] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A grounding terminal for connecting a ground wire to a bracket of a battery pack, characterized in that: The grounding terminal includes: A wire pressing piece with a wiring slot for installing a ground wire; A clamping assembly, comprising a main body and a holding member, both of which can be electrically connected to the ground wire, the main body being connected to the wire pressing member, the main body defining a cavity and a mounting opening communicating with the cavity, the holding member being fixed to the main body and at least partially located within the cavity, the holding member and a sidewall of the cavity being capable of clamping the bracket, or the holding member being capable of clamping the bracket; The main body includes a first plate, a second plate, and a third plate, the first plate is connected to the wire pressing member, the second plate and the third plate are both connected to the first plate and are arranged opposite to each other, the first plate, the second plate, and the third plate surround the cavity, and the abutment member is fixed to the second plate and / or the third plate; The abutment member includes a first abutment member and a second abutment member, one end of the first abutment member is connected to an end of the second plate and / or the third plate facing away from the first plate, and the other end of the first abutment member is arranged obliquely toward the cavity, and one end of the second abutment member is connected to an end of the second plate and / or the third plate facing the cavity, and the other end of the second abutment member is arranged obliquely toward the first plate; The second plate body and / or the third plate body is provided with an escape opening, and the second supporting member is directly opposite to the escape opening.

2. The ground terminal according to claim 1, wherein: The end of the first supporting member facing away from the second plate body is provided with serrations.

3. The ground terminal according to claim 2, wherein: A first preset angle α is formed between the plane where the first supporting member is located and the plane where the second plate is located, and / or a first preset angle α is formed between the plane where the first supporting member is located and the plane where the third plate is located, and α satisfies: 20°≤α≤40°.

4. The ground terminal according to claim 2, wherein: The number of the first resisting members is four, the second plate body and the third plate body are respectively provided with two first resisting members, and the four first resisting members are symmetrically arranged about the plane where the center line of the first plate body is located.

5. The ground terminal according to claim 1, wherein: The second supporting member has a sawtooth formed on one end thereof facing away from the second plate body.

6. The ground terminal according to claim 1, wherein: The wire pressing member comprises: The main body, the wiring slot is arranged in the main body, and the main body is provided with a first wing and a second wing at intervals along its own extension direction, and the first wing and the second wing respectively surround at least a part of the wiring slot.

7. The ground terminal according to claim 6, wherein: The wiring slot includes an inlet end, which is formed with an opening at one end of the body. The first wing is arranged close to the inlet end, and the second wing is located on a side of the first wing away from the inlet end.

8. A battery pack, characterized in that: The battery pack includes a bracket and a grounding terminal according to any one of claims 1 to 7, and the grounding terminal is plugged into the bracket.

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