Battery patch cord of electric vehicle

Abstract

The utility model relates to an electric vehicle battery patch cord which comprises a middle connecting line, a first connector, a second connector, a direct current connector, a first waterproof ring, an MR30 connector and a second waterproof ring, the direct current connector is installed at the end of the first connector, the direct current connector is cylindrical, the first waterproof ring is installed on the peripheral side of the direct current connector, and a square frame is arranged at the bottom of the second connector. An inserting cavity is formed in the square frame, an MR30 connector is installed in the inserting cavity and is separated from the inner wall of the inserting cavity, a second waterproof ring is installed on the peripheral side of the square frame, a wire is installed in the middle connecting line, a direct current connector is electrically connected with the MR30 connector through the wire, the direct current connector is cylindrical, and a first waterproof ring is installed on the peripheral side of the direct current connector. And a second waterproof ring is mounted on the peripheral side of the square frame, so that the waterproof performance of the second connector end is enhanced, the waterproof performance of the battery patch cord of the electric vehicle is integrally enhanced, water immersion is prevented, and normal use is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle accessories, specifically to an electric vehicle battery adapter cable. Background Technology

[0002] When the original batteries of electric bicycles, electric tricycles and other electric vehicles cannot meet the needs of long-term use, users will choose to install a spare battery externally to improve the range. However, this spare battery requires an adapter cable to be connected to the electric vehicle. The disadvantage of the existing adapter cable is that its waterproof performance is generally poor, the connection is not secure enough, and there is a significant risk of water ingress, which may affect normal use. Utility Model Content

[0003] To address the aforementioned shortcomings of existing technologies, this utility model provides a waterproof electric vehicle battery adapter cable, the specific technical solution of which is as follows:

[0004] An electric vehicle battery adapter cable includes an intermediate connecting wire, a first connector, a second connector, a DC connector, a first waterproof ring, an MR30 connector, and a second waterproof ring. One end of the intermediate connecting wire is connected to the first connector, and the other end is connected to the second connector. A DC connector is installed at the end of the first connector. The DC connector is cylindrical and has a first waterproof ring installed on its outer periphery. The bottom of the second connector has a square frame with a plug-in chamber inside. An MR30 connector is installed inside the plug-in chamber and is separated from the inner wall of the plug-in chamber. The bottom of the square frame is open, and a second waterproof ring is installed on the outer periphery of the square frame. A wire is installed inside the intermediate connecting wire, and the DC connector is electrically connected to the MR30 connector through the wire.

[0005] As a preferred embodiment of this utility model, the DC connector includes an insulating head, a positive center post, a signal spring, a negative spring, and a ground connection piece. The insulating head is cylindrical in shape, and a first waterproof ring is installed at the center of the outer periphery of the insulating head. A circular cavity is provided at the front end of the insulating head, and a post is provided at the center of the circular cavity. The post is separated from the inner wall of the circular cavity, and the positive center post is installed at the center of the post. The signal spring, negative spring, and ground connection piece are installed inside the insulating head, and the signal spring, negative spring, and ground connection piece partially extend into the circular cavity.

[0006] As a preferred embodiment of this utility model, the first connector covers the rear part of the insulating head.

[0007] As a preferred embodiment of this utility model, the first waterproof ring is circular and made of silicone.

[0008] As a preferred embodiment of this utility model, the MR30 connector includes an insulating shell and connecting terminals, with three connecting terminals installed inside the insulating shell.

[0009] As a preferred embodiment of this utility model, the second waterproof ring is square and made of silicone.

[0010] As a preferred embodiment of this utility model, the insertion chamber is provided with positioning holes, and there are two positioning holes distributed on the left and right sides of the MR30 connector. The inner wall of the insertion chamber is provided with multiple trapezoidal retaining strips.

[0011] As a preferred embodiment of this utility model, the insertion direction of the DC connector and the MR30 connector is perpendicular.

[0012] Beneficial effects: The DC connector is cylindrical with a first waterproof ring installed on its outer periphery to enhance the waterproofness of the first connector end. A second waterproof ring is installed on the outer periphery of the square frame to enhance the waterproofness of the second connector end. This enhances the overall waterproofness of the electric vehicle battery adapter cable, preventing water ingress and ensuring normal use. Attached Figure Description

[0013] Figure 1 This is a three-dimensional view of the entire utility model;

[0014] Figure 2 This is an exploded view of the present invention;

[0015] Figure 3 This is an exploded view of the DC connector of this utility model;

[0016] Figure 4 This is a perspective view of the second connector of this utility model. Detailed Implementation

[0017] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings:

[0018] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the position or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] like Figure 1 and 2 As shown, an electric vehicle battery adapter cable includes an intermediate connecting wire 1, a first connector 2, a second connector 3, a DC connector 4, a first waterproof ring 5, an MR30 connector 6, and a second waterproof ring 7. One end of the intermediate connecting wire 1 is connected to the first connector 2, and the other end of the intermediate connecting wire 1 is connected to the second connector 3. The DC connector 4 is installed at the end of the first connector 2. The DC connector 4 is cylindrical and has the first waterproof ring 5 installed on its outer periphery. The bottom of the second connector 3 has a square frame 8, and the square frame 8 has a plug-in chamber 9 inside. The MR30 connector 6 is installed inside the plug-in chamber 9 and is separated from the inner wall of the plug-in chamber 9. The bottom of the square frame 8 is open, and the second waterproof ring 7 is installed on the outer periphery of the square frame 8. A wire is installed inside the intermediate connecting wire 1, and the DC connector 4 is electrically connected to the MR30 connector 6 through the wire.

[0021] like Figure 3 As shown, the DC connector 4 includes an insulating head 41, a positive center post 42, a signal spring 43, a negative spring 44, and a ground wire connection piece 45. The insulating head 41 is cylindrical in shape. A first waterproof ring 5 is installed at the center of the outer periphery of the insulating head 41. The first waterproof ring 5 is circular and made of silicone. A circular cavity 46 is provided at the front end of the insulating head 41. A post 47 is provided at the center of the circular cavity 46. The post 47 is separated from the inner wall of the circular cavity 46. The positive center post 42 is installed at the center of the post 47. The signal spring 43, the negative spring 44, and the ground wire connection piece 45 are installed inside the insulating head 41. Parts of the signal spring 43, the negative spring 44, and the ground wire connection piece 45 extend into the circular cavity 46. The first connector 2 covers the rear part of the insulating head 41. The DC connector is reasonably designed and the insertion is stable.

[0022] Specifically, the MR30 connector 6 includes an insulating shell and connecting terminals. Three connecting terminals are installed inside the insulating shell. MR30 is a common connector in the industry, referring to ams' MR30 power connector.

[0023] like Figure 4 As shown, the second waterproof ring 7 is square and made of silicone. The insertion chamber 9 has a positioning hole 91 inside. There are two positioning holes 91 distributed on the left and right sides of the MR30 connector 6. The inner wall of the insertion chamber 9 has multiple trapezoidal retaining strips 92.

[0024] Specifically, the insertion direction of DC connector 4 and MR30 connector 6 is perpendicular, and the vertical pull-out force is ≥1.0kgf.

[0025] The above description is a further detailed explanation of the present utility model in conjunction with specific preferred embodiments. It should not be considered that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the protection scope of the present utility model.

Claims

1. An electric vehicle battery adapter cable comprising a middle connecting cable, a first connecting head, and a second connecting head, one end of the middle connecting cable being connected to the first connecting head, and the other end of the middle connecting cable being connected to the second connecting head, characterized in that: The direct current connector, the first waterproof ring, the MR30 connector and the second waterproof ring are further included. The direct current connector is installed at the end of the first connector. The direct current connector is cylindrical and the first waterproof ring is installed at the outer periphery of the direct current connector. The second connector is provided with a square frame. The square frame is internally provided with a plug-in cavity. The MR30 connector is installed in the plug-in cavity. The MR30 connector is spaced apart from the inner wall of the plug-in cavity. The square frame is provided with an opening at the bottom. The second waterproof ring is installed at the outer periphery of the square frame. The wire is installed in the intermediate connecting wire. The direct current connector is electrically connected to the MR30 connector through the wire.

2. The battery adapter cable for an electric vehicle of claim 1, wherein: The direct current connector includes an insulating head, a positive center column, a signal spring piece, a negative spring piece and a ground wire connecting piece. The insulating head is cylindrical. The first waterproof ring is installed at the middle position of the outer periphery of the insulating head. The insulating head is provided with a circular cavity at the front end. The circular cavity is provided with a plug-in column at the center. The plug-in column is spaced apart from the inner wall of the circular cavity. The positive center column is installed at the center of the plug-in column. The signal spring piece, the negative spring piece and the ground wire connecting piece are installed in the insulating head. The signal spring piece, the negative spring piece and the ground wire connecting piece partially extend into the circular cavity.

3. The battery adapter cable for an electric vehicle of claim 2, wherein: The first connector is covered by the insulating head.

4. The battery adapter cable of claim 1 or 2, wherein: The first waterproof ring is circular and is made of silica gel.

5. The battery adapter cable of claim 1, wherein: The MR30 connector includes an insulating shell and a connecting terminal. Three connecting terminals are installed in the insulating shell.

6. The battery adapter cable of claim 1 or 5, wherein: The second waterproof ring is square and is made of silica gel.

7. The battery adapter cable of claim 1, wherein: The plug-in cavity is provided with a positioning hole. Two positioning holes are distributed on the left and right sides of the MR30 connector. The inner wall of the plug-in cavity is provided with a plurality of trapezoidal clamping strips.

8. The battery adapter cable of any one of claims 1-7, wherein: The plug-in direction of the direct current connector and the MR30 connector is perpendicular.

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