Electric bicycle charger output connector with inner formwork

Abstract

The utility model discloses an electric bicycle charger output connector with an inner mold frame. The electric bicycle charger output connector comprises a charging wire, a protective shell, a plug-in sheet, an enhanced inner mold and a PVC outer mold. Wherein the plug-in end of the plug-in piece extends into the plug-in cavity of the protective shell, and the connecting end of the plug-in piece is connected with the charging wire; the reinforced inner mold wraps the periphery of the connecting end of the plug-in piece and the periphery of the connecting end of the charging wire, so that the plug-in piece and the charging wire are connected into a whole; the PVC outer mold wraps the connecting end of the protective shell, the reinforcing inner mold and the connecting end of the charging wire, so that the protective shell, the reinforcing inner mold and the charging wire are connected into a whole. According to the utility model, the copper wire at the joint of the charging wire and the plug-in sheet is not easy to break, and the tensile property of the product is improved. In addition, the combination between the reinforced inner mold and the PVC outer mold is tighter, and the reinforced inner mold and the PVC outer mold are not easy to loosen when the connector is pulled.

Description

Technical Field

[0001] The utility model relates to the technical field of charging cables, in particular to an electric bicycle charger output connector with an inner mold frame. Background Art

[0002] After charging an electric bicycle, people need to remove the charger from the electric bicycle. For convenience, people often pull the charging cable of the charger directly to pull the charger connector off the charging port of the electric bicycle. However, the output connector of the existing electric bicycle charger is a layer of PVC outer mold injected on the outside of the plug. Figure 1 As shown, due to the characteristics of PVC material, the PVC outer mold is easily softened in hot summer weather. Since the tensile strength of the PVC outer mold is reduced, when the charger is removed by the above pulling method, the copper wire connected to the plug is easily broken, causing the charger to be unusable. Utility Model Content

[0003] In order to solve the above problems, the present application provides an electric bicycle charger output connector with an inner mold frame, which is not easily broken in a low temperature environment and has good tensile strength.

[0004] The purpose of the utility model is achieved through the following technical solution: an electric bicycle charger output connector with an inner mold frame, comprising:

[0005] Charging cable;

[0006] A protective shell having an inserting cavity provided therein;

[0007] A plug-in piece, the plug end of which extends into the plug cavity of the protective shell and the connecting end of which is connected to the charging cable;

[0008] A reinforced inner mold, which covers around the connecting end of the plug-in plate and the connecting end of the charging cable, so that the plug-in plate and the charging cable are connected as a whole;

[0009] The PVC outer mold is coated on the outside of the connection end of the protective shell, the reinforced inner mold and the connection end of the charging cable, so that the protective shell, the reinforced inner mold and the charging cable are connected as a whole.

[0010] As a preferred solution, the surface of the reinforced inner mold is provided with at least one pouring hole, and the PVC outer mold is at least partially poured into the pouring hole.

[0011] As a preferred solution, the pouring hole is a through hole or a blind hole.

[0012] As a preferred solution, the reinforced inner mold is made of PP material or PC material.

[0013] As a preferred solution, the thickness ratio of the reinforced inner mold to the PVC outer mold is 1:1-2.

[0014] Compared with the prior art, this application has the following beneficial effects:

[0015] The present invention injects a layer of reinforced inner mold around the connection end of the plug-in plate and the connection end of the charging cable. The reinforced inner mold connects the plug-in plate and the charging cable together. Since the reinforced inner mold has good strength, the copper wire at the connection between the charging cable and the plug-in plate is not easily broken when the charging cable is pulled, thereby improving the tensile strength of the product. In addition, the surface of the reinforced inner mold is provided with a pouring hole, and a portion of the PVC outer mold is poured into the pouring hole. This makes the bond between the reinforced inner mold and the PVC outer mold tighter, and the two are not easily loosened when the connector is pulled. The present invention combines the reinforced inner mold with the PVC outer mold, so that the connector has excellent tensile strength and is not easily broken in low temperature environments.

[0016] Some additional features of the present application may be described in the following description. Some additional features of the present application will be apparent to those skilled in the art from an inspection of the following description and accompanying drawings, or from a thorough understanding of the production or operation of the embodiments. The features disclosed in this application may be realized and achieved through the practice or use of the various methods, means, and combinations of the specific embodiments described below. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The exemplary embodiments of the present application and their descriptions are used to explain the present application and do not constitute a limitation of the present application. In each figure, the same reference numerals represent the same components.

[0018] Figure 1 The figure is a partial cross-sectional view of an existing electric bicycle charger output connector.

[0019] Figure 2 This is a diagram showing the connection between the charging cable, power strip, and protective case.

[0020] Figure 3 This is a partial cross-sectional view of the utility model showing the reinforced inner mold wrapped around the charging cable and the plug-in plate.

[0021] Figure 4 This is a partial cross-sectional view of the utility model

[0022] The reference numerals in the above figures are: 1-protective shell, 2-plug-in board, 3-charging cable, 4-reinforced inner mold, 5-casting hole, 6-PVC outer mold. DETAILED DESCRIPTION

[0023] In order to enable people in this technical field to better understand the solution of this application, the technical solution in the embodiment of this application will be clearly and completely described below in combination with the drawings in the embodiment of this application. Obviously, the described embodiment is only a part of the embodiment of this application, not all of the embodiments.

[0024] Example

[0025] like Figure 2-4 As shown, this embodiment discloses an electric bicycle charger output connector with an inner mold frame, which includes: a charging line 3, a protective shell 1, a plug-in sheet 2, a reinforced inner mold 4, and a PVC outer mold 6. Among them, like traditional connectors, the protective shell 1 in this embodiment is provided with a plug-in cavity inside, the plug-in end of the plug-in sheet 2 extends into the plug-in cavity of the protective shell 1, and its connecting end is connected to the charging line 3. When charging, the protective shell 1 is inserted into the charging port of the electric bicycle, and the connecting sheet on the charging port of the electric bicycle contacts the plug-in sheet 2 in the plug-in cavity to achieve charging, as shown in FIG. Figure 2 shown.

[0026] In order to solve the technical problem raised in this application, the reinforced inner mold 4 is wrapped around the connecting end of the plug-in sheet 2 and the connecting end of the charging cable 3; in specific implementation, the reinforced inner mold 4 is formed by casting, so that the connecting end of the plug-in sheet 2 and the connecting end of the charging cable 3 are buried inside the reinforced inner mold 4, so that the plug-in sheet 2 and the charging cable 3 are connected as a whole. Figure 3 shown.

[0027] The reinforced inner mold 4 can be made of PP material or PC material. In this embodiment, PP material is used.

[0028] In addition, the PVC outer mold 6 is covered on the outside of the connection end of the protective shell 1, the reinforced inner mold 4 and the connection end of the charging cable 3. Similarly, the PVC outer mold 6 is also formed by casting to connect the protective shell 1, the reinforced inner mold 4 and the charging cable 3 into a whole. Figure 4 shown.

[0029] In this embodiment, the plug-in plate 2 and the charging cable 3 are connected as one body by means of a reinforced inner mold 4. Since the reinforced inner mold 4 has good strength, the copper wire at the connection between the charging cable 3 and the plug-in plate 2 is not easily broken when the charging cable is pulled, thereby improving the tensile strength of the product.

[0030] In addition, the surface of the reinforced inner mold 4 is provided with at least one pouring hole 5, such as one, two, three, or more. The pouring hole 5 can be a through hole or a blind hole. In this embodiment, the pouring hole 5 is a through hole. Thus, when the PVC outer mold 6 is cast, part of the PVC material is poured into the pouring hole 5, thereby integrally connecting the PVC outer mold 6 with the reinforced inner mold 4. This strengthens the connection between the reinforced inner mold 4 and prevents the PVC outer mold 6 from loosening when the connector is pulled.

[0031] In addition, the thickness ratio of the reinforced inner mold 4 to the PVC outer mold 6 is 1:1-2. In this embodiment, the thickness ratio of the reinforced inner mold 4 to the PVC outer mold 6 is 1:2. This embodiment uses a combination of a reinforced inner mold and a PVC outer mold, which makes the connector have excellent tensile strength and is not easily broken in low-temperature environments.

[0032] The following tests were conducted on the bending performance, low-temperature brittleness performance, and tensile strength of the electric bicycle charger output connector with an inner mold frame in this embodiment:

[0033] Bending performance test:

[0034] Test method: Fix the protective shell 1 part of the connector, swing the connector, the swing angle is ±45°, the swing rate is 60 times (back and forth) / minute, and swing more than 40,000 times. After completing half of the swing times, rotate the connector 90° and continue to complete the remaining swing times.

[0035] Test results: The connector was tested for conductivity. No short circuits occurred between the wires, no more than 10% of the internal copper wires were broken, the charging cable and the plug were not loose, the rubber was not damaged, and the copper wire did not pierce the rubber, meeting the test requirements.

[0036] Low temperature brittleness performance test:

[0037] Test method: Place the sample in a low-temperature box, wait for the temperature to drop to -25℃±2℃, freeze it for 4 hours, take it out and fix the connector, then bend the connector 180° back and forth 4 times within 10 seconds; repeat the above process 2 times.

[0038] Test results: The connector has no cracks and meets the requirements.

[0039] Tensile performance test:

[0040] Test method: Bake the sample at 85℃ for 1 hour, and within 10 seconds after baking, perform a pull-off test on the reinforced inner mold and the PVC outer mold using a tensile force of 200N and hold for 1 minute.

[0041] Test results: There is no looseness between the reinforced inner mold and the PVC outer mold, which meets the requirements.

[0042] It should be noted that all features disclosed in this specification, or steps in all methods or processes disclosed, except for mutually exclusive features and / or steps, can be combined in any manner.

[0043] In addition, the above-mentioned specific embodiments are merely illustrative. Those skilled in the art may devise various solutions based on the disclosure of this utility model, and such solutions fall within the scope of disclosure and the scope of protection of this utility model. Those skilled in the art should understand that the specification and drawings of this utility model are illustrative and do not constitute limitations of the claims. The scope of protection of this utility model is defined by the claims and their equivalents.

Claims

1. An electric bicycle charger output connector with an inner mold frame, characterized in that: include: Charging cable (3); A protective shell (1) having an inserting cavity provided therein; A plug-in piece (2), the plug-in end of which extends into the plug-in cavity of the protective shell (1), and the connecting end of which is connected to the charging cable (3); A reinforced inner mold (4) is wrapped around the connection end of the plug-in plate (2) and the connection end of the charging cable (3), so that the plug-in plate (2) and the charging cable (3) are connected as a whole; The PVC outer mold (6) is coated on the outside of the connection end of the protective shell (1), the reinforced inner mold (4) and the connection end of the charging cable (3), so that the protective shell (1), the reinforced inner mold (4) and the charging cable (3) are connected as a whole.

2. The electric bicycle charger output connector with inner mold frame according to claim 1, characterized in that: The surface of the reinforced inner mold (4) is provided with at least one pouring hole (5), and the PVC outer mold (6) is at least partially poured into the pouring hole (5).

3. The electric bicycle charger output connector with inner mold frame according to claim 2, characterized in that: The pouring hole (5) is a through hole or a blind hole.

4. The electric bicycle charger output connector with an inner mold frame according to any one of claims 1 to 3, characterized in that: The reinforced inner mold (4) is made of PP material or PC material.

5. The electric bicycle charger output connector with an inner mold frame according to any one of claims 1 to 3, characterized in that: The thickness ratio of the reinforced inner mold (4) to the PVC outer mold (6) is 1:1-2.

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