Waterproof adapter and preparation method thereof

Abstract

The invention discloses a waterproof adapter and a preparation method thereof, the waterproof adapter comprises a shell, a control panel, a first connector, a second connector and an inner mold, the first connector and the second connector are two different connectors; the shell is provided with an accommodating cavity; the control panel is mounted in the accommodating cavity; the first connector and the second connector are welded to the two ends of the control panel respectively and located in the containing cavity, the first connector is provided with a first inserting cavity, and the second connector is provided with a second inserting cavity; the inner mold is formed in the containing cavity. The inner mold is formed in the containing cavity in an injection molding mode, so that the converter obtains excellent waterproof performance, the limiting ribs are arranged on the inner wall face of the containing cavity in a matched mode, the limiting ribs are buried in the inner mold, combination of the inner mold and the shell is firm and reliable enough, the inner mold cannot be pulled out during plugging, and the situation that the adapter loses the waterproof performance is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of adapters, and in particular to a waterproof adapter and a preparation method thereof. Background Art

[0002] With the continuous progress of technology, USB communication is widely and maturely used in various electronic devices. And as people's requirements for communication speed are constantly increasing, the USB communication protocol is also continuously upgraded, which is manifested in very different forms of communication interfaces. Nowadays, consumer electronic devices increasingly emphasize the user experience and the multimedia file capacity is getting larger and larger. The communication method that the TYPE-C interface supports plugging in either direction has gradually become the first choice of more and more manufacturers' devices. However, there is still a large proportion of devices using other connectors in the market. For this reason, most manufacturers have developed an adapter for connecting two different connectors.

[0003] The preparation process of the current adapter is as follows. First, the two connectors are welded and fixed on a control board. Then, an inner mold is formed on the two connectors fixed together. Next, the inner mold is installed in the outer shell. Finally, liquid silicone is formed at both ends of the outer shell. This process is relatively complex. Moreover, the combination of the liquid silicone and the outer shell is not firm and reliable enough, so that the liquid silicone is easily pulled out during plugging and unplugging, resulting in the adapter losing its waterproof performance. Therefore, it is necessary to improve the existing adapter. Summary of the Invention

[0004] In view of this, aiming at the deficiencies existing in the prior art, the main purpose of the present invention is to provide a waterproof adapter and a preparation method thereof, which can effectively solve the problem that the combination of the liquid silicone and the outer shell of the existing adapter is not firm and reliable enough, and is easily pulled out during plugging and unplugging, resulting in the adapter losing its waterproof performance.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A waterproof adapter includes an outer shell, a control board, a first connector, a second connector and an inner mold. Among them, the first connector and the second connector are two different connectors. The outer shell has a receiving cavity, and the inner wall surface of the receiving cavity is provided with limiting ribs. The control board is installed in the receiving cavity. The first connector and the second connector are respectively welded to both ends of the control board and are both located in the receiving cavity. The first connector has a first insertion cavity, and the second connector has a second insertion cavity. The inner mold is formed in the receiving cavity by injection molding and wraps the control board, the first connector and the second connector. The inner mold has a first slot and a second slot. The first slot is directly opposite and communicated with the first insertion cavity, and the second slot is directly opposite and communicated with the second insertion cavity. The aforementioned limiting ribs are buried in the inner mold.

[0007] As a preferred solution, positioning ribs are provided on the inner side of the storage cavity, and the control board has a positioning portion that abuts against and is positioned by the positioning ribs.

[0008] As a preferred solution, waterproof ribs are protruded in both the first slot and the second slot.

[0009] As a preferred solution, the first connector is a USB connector, and the second connector is a Type-C connector.

[0010] A preparation method of the aforementioned waterproof converter, which selects a positioning workpiece for positioning the aforementioned waterproof converter. The positioning workpiece includes a first positioning member and a second positioning member. The first positioning member has a first positioning portion adapted to the first plugging cavity and a second positioning portion adapted to the first slot, and the first positioning member is provided with a glue injection hole; the second positioning member has a third positioning portion adapted to the second plugging cavity and a fourth positioning portion adapted to the second slot;

[0011] The preparation method of the aforementioned waterproof converter includes the following steps:

[0012] (1) Weld and fix the first connector and the second connector to both ends of the control board respectively to obtain a conversion module;

[0013] (2) Mate the conversion module obtained in step (1) with the positioning workpiece. First, insert the first positioning portion into the first plugging cavity, then sleeve the outer shell, and then insert the third positioning portion into the third plugging cavity to obtain a pre-molded structure;

[0014] (3) Place the pre-molded structure obtained in step (2) into the mold core, close the mold, and injection mold an inner mold to finally obtain the waterproof converter.

[0015] As a preferred solution, waterproof rib grooves are concavely formed on the surfaces of both the second positioning portion and the fourth positioning portion.

[0016] As a preferred solution, a first slot is provided on the first positioning member, and the circumferential side surface of one end of the outer shell is in close contact with the inner side surface of the first slot; a second slot is provided on the second positioning member, and the circumferential side surface of the other end of the outer shell is in close contact with the inner side surface of the second slot.

[0017] As a preferred solution, a first positioning groove for positioning with the mold core is provided on the first positioning member, and a second positioning groove for positioning with the mold core is provided on the second positioning member.

[0018] As a preferred solution, the inner diameter of the glue injection hole decreases sequentially from outside to inside.

[0019] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:

[0020] The inner mold is formed in the storage cavity by injection molding, so that the converter has excellent waterproof performance, and limiting ribs are arranged on the inner wall of the storage cavity. The limiting ribs are buried in the inner mold, so that the combination of the inner mold and the outer shell is firm and reliable enough, and will not be pulled out when plugging and unplugging, thereby preventing the adapter from losing its waterproof performance.

[0021] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of an assembly perspective view of a preferred embodiment of the present invention;

[0023] Figure 2 It is a schematic three-dimensional assembly diagram of another angle of a preferred embodiment of the present invention;

[0024] Figure 3 is an exploded view of a preferred embodiment of the present invention;

[0025] Figure 4 is a cross-sectional view of a preferred embodiment of the present invention;

[0026] Figure 5 It is a three-dimensional schematic diagram of the cooperation between the waterproof adapter and the positioning workpiece;

[0027] Figure 6 yes Figure 5 Exploded diagram of

[0028] Figure 7 It is a cross-sectional view of the waterproof adapter and the positioning workpiece;

[0029] Figure 8 This is a cross-sectional view from another angle of the waterproof adapter and the positioning workpiece.

[0030] Description of the accompanying drawings:

[0031] 10. Shell 11. Storage cavity

[0032] 12. Limiting ribs 13. Positioning ribs

[0033] 20. Control panel 21. Positioning unit

[0034] 30. First connector 31. First plug-in cavity

[0035] 40. Second connector 41. Second plug-in cavity

[0036] 50, inner mold 51, first slot

[0037] 52. Second slot 53. Waterproof rib

[0038] 60. Positioning workpiece 61. First positioning member

[0039] 611. First positioning portion 612. Second positioning portion

[0040] 613. Glue injection hole 614. First slot

[0041] 615. First positioning groove 62. Second positioning member

[0042] 621. Third positioning portion 622. Fourth positioning portion

[0043] 623. Second slot 624. Second positioning groove. Detailed implementation mode

[0044] Please refer to Figures 1 to 3 As shown, it shows the specific structure of the preferred embodiment of the present invention, including a housing 10, a control board 20, a first connector 30, a second connector 40 and an inner mold 50. Among them, the first connector 30 and the second connector 40 are two different connectors.

[0045] The housing 10 has a receiving cavity 11, and the inner wall surface of the receiving cavity 11 is provided with limiting ribs 12; in this embodiment, the inner side surface of the receiving cavity 11 is provided with positioning ribs 13.

[0046] The control board 20 is installed in the receiving cavity 11; in this embodiment, the control board 20 has a positioning portion 21, and the positioning portion 21 abuts and positions against the positioning ribs 13.

[0047] The first connector 30 and the second connector 40 are respectively welded to both ends of the control board 20 and are both located in the receiving cavity 11. The first connector 30 has a first insertion cavity 31, and the second connector 40 has a second insertion cavity 41; in this embodiment, the first connector 30 is a USB connector, and the second connector 40 is a Type-C connector.

[0048] The inner mold 50 is formed in the receiving cavity 11 by injection molding and wraps the control board 20, the first connector 30 and the second connector 40. The inner mold 50 has a first slot 51 and a second slot 52. The first slot 51 is directly opposite and communicated with the first insertion cavity 31, and the second slot 52 is directly opposite and communicated with the second insertion cavity 41. The aforementioned limiting ribs 12 are buried in the inner mold 50; in this embodiment, waterproof ribs 53 are protruded in both the first slot 51 and the second slot 52.

[0049] The present invention also discloses a preparation method of the foregoing waterproof converter. A positioning workpiece 60 for positioning the foregoing waterproof converter is selected. The positioning workpiece 60 includes a first positioning member 61 and a second positioning member 62. The first positioning member 61 has a first positioning portion 611 adapted to the first insertion cavity 31 and a second positioning portion 612 adapted to the first slot 51, and the first positioning member 61 is provided with a glue injection hole 613; the second positioning member 62 has a third positioning portion 621 adapted to the second insertion cavity 41 and a fourth positioning portion 622 adapted to the second slot 52; specifically, waterproof rib grooves 601 are concavely formed on the surfaces of the second positioning portion 612 and the fourth positioning portion 622; and a first slot 614 is formed on the first positioning member 61, and the circumferential side surface of one end of the housing 10 is in close contact with the inner side surface of the first slot 614; a second slot 623 is formed on the second positioning member 62, and the circumferential side surface of the other end of the housing 10 is in close contact with the inner side surface of the second slot 623; in addition, a first positioning groove 615 for positioning with the mold core is formed on the first positioning member 61, and a second positioning groove 624 for positioning with the mold core is formed on the second positioning member 62; the inner diameter of the glue injection hole 613 decreases sequentially from outside to inside.

[0050] The preparation method of the foregoing waterproof converter includes the following steps:

[0051] (1) Weld and fix the first connector and the second connector to both ends of the control board respectively to obtain a conversion module;

[0052] (2) Fit the conversion module obtained in step (1) with the positioning workpiece. First, insert the first positioning portion into the first insertion cavity, then sleeved with the housing, and then insert the third positioning portion into the third insertion cavity to obtain a pre-closing die structure;

[0053] (3) Put the pre-closing die structure obtained in step (2) into the mold core, close the mold, and injection mold an inner mold, and finally obtain a waterproof converter.

[0054] The design focus of the present invention is: by injection molding the inner mold in the receiving cavity, the converter obtains excellent waterproof performance, and then in cooperation with the provision of limiting ribs on the inner wall surface of the receiving cavity, the limiting ribs are buried in the inner mold, so that the combination of the inner mold and the housing is firm and reliable enough, and will not be pulled out during plugging and unplugging, avoiding the loss of waterproof performance of the adapter.

[0055] The above is only a preferred embodiment of the present invention, and does not impose any limitation on the technical scope of the present invention. Therefore, any minor modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A waterproof adapter, characterized in that: It includes a housing, a control board, a first connector, a second connector and an inner mold. Among them, the first connector and the second connector are two different connectors; the housing has a receiving cavity, the inner wall surface of the receiving cavity is provided with limiting ribs, and the inner side surface of the receiving cavity is provided with positioning ribs; the control board is installed in the receiving cavity, and the control board has a positioning portion, and the positioning portion abuts against and positions with the positioning ribs; the first connector and the second connector are respectively welded to both ends of the control board and are both located in the receiving cavity, the first connector has a first insertion cavity, and the second connector has a second insertion cavity; the inner mold is formed in the receiving cavity by injection molding and wraps the control board, the first connector and the second connector, the inner mold has a first slot and a second slot, the first slot is directly opposite and communicated with the first insertion cavity, and the second slot is directly opposite and communicated with the second insertion cavity, and the aforementioned limiting ribs are buried in the inner mold.

2. The waterproof adapter according to claim 1, wherein: Waterproof ribs are convexly provided in both the first slot and the second slot.

3. The waterproof adapter according to claim 1, characterized in that: The first connector is a USB connector, and the second connector is a Type-C connector.

4. A method for preparing the waterproof converter according to any one of claims 1-3, characterized in that: Select a positioning workpiece for positioning the waterproof converter according to any one of claims 1-4. The positioning workpiece includes a first positioning member and a second positioning member. The first positioning member has a first positioning portion adapted to the first insertion cavity and a second positioning portion adapted to the first slot, and the first positioning member is provided with a glue injection hole; the second positioning member has a third positioning portion adapted to the second insertion cavity and a fourth positioning portion adapted to the second slot; The preparation method of the waterproof converter according to any one of claims 1-3 includes the following steps: (1) Weld and fix the first connector and the second connector to both ends of the control board respectively to obtain a conversion module; (2) Mate the conversion module obtained in step (1) with the positioning workpiece. First, insert the first positioning portion into the first insertion cavity, then sleeved with the housing, and then insert the third positioning portion into the third insertion cavity to obtain a pre-assembled mold structure; (3) Put the pre-assembled mold structure obtained in step (2) into the mold core, close the mold, and injection mold the inner mold to finally obtain the waterproof converter.

5. The preparation method of the waterproof converter according to claim 4, characterized in that: Waterproof rib grooves are concavely formed on the surfaces of both the second positioning portion and the fourth positioning portion.

6. The preparation method of the waterproof converter according to claim 4, characterized in that: A first slot is provided on the first positioning member, and the circumferential side surface of one end of the housing is in close contact with the inner side surface of the first slot; a second slot is provided on the second positioning member, and the circumferential side surface of the other end of the housing is in close contact with the inner side surface of the second slot.

7. The preparation method of the waterproof converter according to claim 4, characterized in that: A first positioning groove for positioning with the mold core is provided on the first positioning member, and a second positioning groove for positioning with the mold core is provided on the second positioning member.

8. The preparation method of the waterproof converter according to claim 4, wherein: The inner diameter of the glue injection hole decreases sequentially from outside to inside.

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