Electric connector for battery device and battery device

Abstract

The utility model discloses an electric connector for a battery device and the battery device, the electric connector comprises an insulating shell and a terminal assembly, the insulating shell comprises a main body part, the main body part is provided with an upward through accommodating groove, the terminal assembly is arranged in the accommodating groove, and the terminal assembly is arranged in the accommodating groove. The position, close to the top end face, of the outer side wall of the main body part protrudes outwards to form a clamping step, the part, upwards exceeding the clamping step, of the main body part forms a convex part, the clamping step is configured to be attached and fixed to the inner wall of a shell cover of the battery device, and the convex part is configured to penetrate out of the shell cover outwards. The electric connector is provided with the clamping step and the convex part, so that the electric connector can be assembled to the shell cover from the interior of the battery device, and the shell cover can be assembled at the rear section of an assembling process, so that the assembling process of the battery device followed by the shell cover is greatly reduced, and the working efficiency is improved. In addition, after the battery device is assembled, the electric connector cannot be detached from the outer side of the shell cover, so that the safety of the battery can be improved.

Description

TECHNICAL FIELD

[0001] The present technology relates to the field of batteries, and in particular to an electrical connector for a battery device and a battery device. BACKGROUND

[0002] After the battery cell is connected in series and parallel, and connected to the BMS (BMS is the battery management system, commonly known as the protection board), it becomes a "battery module". At least one positive line (usually red) is led out from the positive electrode of the battery module, and at least one negative line (usually black) is led out from the negative electrode of the battery module. In order to quickly and correctly connect the positive and negative lines of the battery to the electrical appliance, the positive and negative lines of the battery are usually connected to two insulated metal heads of a terminal assembly, and then the terminal assembly is connected to the terminal assembly of other equipment. The terminal assembly of the power supply (B terminal) is asymmetrically foolproof, and is marked with positive and negative (+- symbol). Similarly, the power supply lead of the electrical appliance is also connected to a terminal marked with positive and negative (+- symbol) (L terminal). Directly plugging the L terminal and the B terminal can achieve the electrical connection of the battery to the electrical appliance; such terminal connection is called "L-B terminal connection".

[0003] On 300W-100000W electric two-wheeled vehicles and electric three-wheeled vehicles, the "L-B terminal connection" used is a high-power type terminal (working current up to 15A-200A), and loose L-B terminal connection can easily cause terminal sparking, blackening and heating, softening and even burning, causing safety accidents such as battery combustion and explosion. An effective "L-B terminal connection" design can ensure that it meets the high-power application under the condition of being small in size. The existing XT60 or XT90 connection terminal can meet the above "small-size terminal for high-power application".

[0004] However, the existing battery design scheme is that the positive and negative lines led out from the inside of the shell cover pass through the shell cover and are connected to the electrical connector (terminal assembly) arranged outside the battery shell, so that the battery can be connected to other equipment through the electrical connector. The disadvantage of this design scheme is obvious. During the assembly of the battery device, the large and relatively heavy shell cover has to follow many operation processes of the assembly of the battery device, causing inconvenience in operation and low operation efficiency. In order to solve the problem that the shell cover follows many operation processes of the assembly of the battery device and facilitate the operation of the assembly of the battery device, an intermediate connecting piece fixed to the shell cover is needed, which is responsible for connecting the internal battery and the electrical connector outside the shell cover. However, this not only increases the production cost, but also increases the impedance of the entire current loop after the intermediate connecting piece is added, and the reliability is reduced. CONTENT OF THE UTILITY MODEL

[0005] The application aims to provide an electric connector for a battery device and a battery device, which reduces the assembly process of the battery device followed by a shell cover, and improves work efficiency.

[0006] To achieve the above-mentioned purpose, the application provides an electric connector for a battery device, comprising an insulating shell and a terminal assembly, the insulating shell comprises a main body part, the main body part is provided with an accommodating groove penetrating upward, the terminal assembly is arranged in the accommodating groove, an outer side wall of the main body part is outwardly protruded to form a clamping step near a top end surface thereof, a part of the main body part upwardly protruding beyond the clamping step forms a protruding part, the clamping step is configured to be fixedly attached to an inner wall of a shell cover of the battery device, and the protruding part is configured to outwardly protrude through the shell cover.

[0007] Optionally, the terminal assembly comprises a seat body and two conductive columns, the seat body is fixedly arranged in the accommodating groove, the seat body is provided with two mounting holes penetrating upward and downward, the two conductive columns are respectively arranged in the two mounting holes and downwardly protrude out of the mounting holes, a bottom part of the accommodating groove is provided with two through holes penetrating downward, and bottom parts of the two conductive columns are provided with wiring parts, the wiring parts downwardly pass through the through holes and are connected with a battery connecting line.

[0008] Optionally, a top end surface of the terminal assembly and a top end surface of the protruding part are flush.

[0009] Optionally, the clamping step is provided with a screw hole, the screw hole is used for passing a screw to fix the clamping step to the shell cover.

[0010] Optionally, the clamping step comprises two boss parts arranged on opposite sides of the main body part, and the two boss parts are respectively provided with screw holes.

[0011] To achieve the above-mentioned purpose, the application provides a battery device, comprising a shell, a battery and the electric connector as described above, the battery and the electric connector are arranged in the shell, the battery is connected with the electric connector through a battery connecting line, the shell comprises a shell cover, the clamping step is fixedly attached to an inner wall of the shell cover, and the protruding part outwardly protrudes through the shell cover.

[0012] Optionally, the clamping step is provided with a first screw hole, the shell cover is provided with a second screw hole, an outer wall of the shell cover is welded with a nut, and a screw is threadedly connected with the nut after passing through the first screw hole and the second screw hole.

[0013] In the embodiment of the present application, the protrusion and the clamping step are arranged on the insulating shell, so that the protrusion of the insulating shell penetrates out of the shell cover and the clamping step fixes the electrical connector on the inner side of the shell cover, realizing the inward-outward assembly of the electrical connector. In the process of assembling the battery device, the electrical connector can be assembled with the internal structure of the battery device first, without being fixed on the shell cover first, thereby greatly reducing the assembly process followed by the shell cover and improving the work efficiency. Moreover, the present application does not increase the intermediate connecting piece, which is conducive to reducing the production cost. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 FIG. 1 is a perspective view of the electrical connector according to the embodiment of the present application.

[0015] Figure 2 FIG. 2 is another perspective view of the electrical connector according to the embodiment of the present application.

[0016] Figure 3 FIG. 3 is a perspective view of the battery device according to the embodiment of the present application, in which part of the structure is not shown. DETAILED DESCRIPTION

[0017] In order to explain the technical content, structural features, achieved purposes and effects of the present application in detail, the following will be described in detail in combination with the embodiments and the accompanying drawings.

[0018] Please refer to Figures 1 to 3 The present application discloses an electrical connector 100 for a battery device, comprising an insulating shell 1 and a terminal assembly 2, the insulating shell 1 comprises a main body part 11, the main body part 11 is provided with an upwardly penetrating accommodating groove 12, the terminal assembly 2 is arranged in the accommodating groove 12, the outer side wall of the main body part 11 is outwardly protruded to form a clamping step 13 at the position close to the top surface, the part of the main body part 11 upwardly exceeding the clamping step 13 forms a protrusion 14, the clamping step 13 is configured to be fixedly attached to the inner wall of the shell cover 201 of the battery device, and the protrusion 14 is configured to penetrate out of the shell cover 201.

[0019] In the embodiments of the present application, the protrusion 14 of the insulating shell 1 is arranged to protrude out of the shell cover 201 and the electrical connector 100 is fixed to the inner side of the shell cover 201 through the clamping step 13, so that the electrical connector 100 is assembled from the inside to the outside, and then the electrical connector 100 can be assembled with the internal structure of the battery device first in the operation process of assembling the battery device, without being fixed to the shell cover 201 first, thereby greatly reducing the assembly process followed by the shell cover 201 and improving the operation efficiency. Moreover, the present application does not increase the intermediate connecting piece, which is beneficial to reducing the production cost. In addition, since the electrical connector 100 of the present application is fixed to the inner side of the shell cover 201, it is beneficial to avoid disassembling the electrical connector 100 from the outer side of the shell cover 201 after the assembly is completed, and is beneficial to improving the safety of the battery 300.

[0020] Referring to Figure 1 and Figure 2 In some embodiments, the terminal assembly 2 includes a seat body 21 and two conductive columns 22, the seat body 21 is fixedly arranged in the accommodating groove 12, two mounting holes 211 are arranged on the seat body 21 and penetrate the seat body 21 from top to bottom, and the two conductive columns 22 are arranged in the two mounting holes 211 and protrude downward from the mounting holes 211; two through holes 212 are arranged on the bottom of the accommodating groove 12 and penetrate the accommodating groove 12 from bottom to top; and the bottom of each of the two conductive columns 22 is provided with a wiring portion 221, the wiring portion 221 penetrates the through hole 212 from bottom to top and is connected with the battery connecting wire 301.

[0021] Specifically, the wiring portion 221 includes a first welding plate 2211 and a second welding plate 2212, which extend from the edge of one end of the conductive column 22, and the first welding plate 2211 has a length greater than that of the second welding plate 2212.

[0022] Referring to Figure 1 In some embodiments, the top end surface of the terminal assembly 2 is flush with the top end surface of the protrusion 14. Of course, it is not limited to this.

[0023] Referring to Figure 1 and Figure 2 In some embodiments, the clamping step 13 is provided with a screw hole 131, and the screw hole 131 is used for penetrating a screw to fix the clamping step 13 to the shell cover 201.

[0024] Specifically, the clamping step 13 includes two boss portions 132 arranged on opposite sides of the main body portion 11, and each of the two boss portions 132 is provided with a screw hole 131.

[0025] Referring to Figure 1 In some embodiments, one end of the terminal assembly 2 is provided with a foolproof structure 213.

[0026] Referring to Figures 1 to 3The application also discloses a battery device, which comprises a shell 200, a battery 300 and the above-mentioned electric connector 100, the battery 300 and the electric connector 100 are arranged in the shell 200, the battery 300 is connected with the electric connector 100 through a battery connecting wire 301, and the shell 200 comprises a shell cover 201, the clamping step 13 is attached and fixed to the inner wall of the shell cover 201 of the battery 300, and the convex part 14 penetrates out of the shell cover 201.

[0027] In the embodiment of the application, the convex part 14 of the insulating shell 1 penetrates out of the shell cover 201 and the electric connector 100 is fixed to the inner side of the shell cover 201 through the clamping step 13, so that the electric connector 100 is assembled from inside to outside, and then the electric connector 100 can be assembled with the internal structure of the battery device first in the working process of the assembly of the battery device, without being fixed to the shell cover 201 first, so that the assembly process followed by the shell cover 201 is greatly reduced, and the working efficiency is improved. Moreover, the application does not increase the intermediate connecting piece, and is beneficial to reducing the production cost.

[0028] Please refer to Figures 1 to 3 In some embodiments, the clamping step 13 is provided with a first screw hole 131, the shell cover 201 is provided with a second screw hole 202, the outer wall of the shell cover 201 is welded with a nut 203, and the screw 3 is threadedly connected with the nut 203 after penetrating through the first screw hole 131 and the second screw hole 202. Since the electric connector 100 is fixed to the inner side of the shell cover 201, the nut cooperating with the screw 3 is welded to the outer wall of the shell cover 201, so that the electric connector 100 can be avoided to be disassembled from the outer side of the shell cover 201 after the assembly is completed, and the safety of the battery 300 is improved.

[0029] The above only discloses the preferred examples of the application, and cannot be used to limit the scope of the right of the application, so that the equivalent changes made according to the claims of the application all belong to the scope covered by the application.

Claims

1. An electrical connector for a battery device, characterized by, The application relates to an electric connector, which comprises an insulating shell and a terminal assembly, the insulating shell comprises a main body part, the main body part is provided with an accommodating groove penetrating upwards, the terminal assembly is arranged in the accommodating groove, an outer side wall of the main body part is outwardly protruded to form a clamping step near a top end face of the main body part, a part of the main body part upwardly protruding beyond the clamping step forms a convex part, the clamping step is arranged to be fixedly attached to an inner wall of a shell cover of a battery device, and the convex part is arranged to outwardly protrude through the shell cover.

2. The electrical connector of claim 1, wherein, The terminal assembly comprises a seat body and two conductive columns, the seat body is fixedly arranged in the accommodating groove, the seat body is provided with two mounting holes penetrating upwards and downwards, the two conductive columns are respectively arranged in the two mounting holes and downwardly protrude through the mounting holes, the bottom of the accommodating groove is provided with two through holes penetrating downwards, the bottom of the two conductive columns is provided with a wiring part, the wiring part downwardly penetrates through the through holes and is connected with a battery connecting wire.

3. The electrical connector of claim 1, wherein, The top end face of the terminal assembly is flush with the top end face of the convex part.

4. The electrical connector of claim 1, wherein, The clamping step is provided with a screw hole, the screw hole is used for penetrating a screw to fix the clamping step to the shell cover.

5. The electrical connector of claim 4, wherein, The clamping step comprises two boss parts arranged on opposite sides of the main body part, and the two boss parts are respectively provided with screw holes.

6. A battery device characterized by comprising: The application further relates to a battery device, which comprises a shell, a battery and the electric connector as claimed in any one of claims 1 to 3, the battery and the electric connector are arranged in the shell, the battery is connected with the electric connector through a battery connecting wire, the shell comprises a shell cover, the clamping step is fixedly attached to an inner wall of the shell cover, and the convex part outwardly protrudes through the shell cover.

7. The battery device of claim 6, wherein The clamping step is provided with a first screw hole, the shell cover is provided with a second screw hole, an outer wall of the shell cover is welded with a nut, and a screw is threadedly connected with the nut after penetrating through the first screw hole and the second screw hole.

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