USB waterproof charger

Abstract

The utility model belongs to the charger field, and discloses a USB waterproof charger comprising a panel and an assembling part, the panel is in sealing connection with one end of the assembling part, and the other end of the assembling part is in sealing connection with a gland; the assembling part is of a hollow cylindrical structure, a USB interface is installed in the assembling part, the USB interface comprises a guide needle, and the guide needle penetrates out of the connecting position of the assembling part and the gland; the circuit board is electrically connected with the USB interface through a lead pin; the bottom cover comprises a shell and a pin which are integrally formed, the shell is provided with a containing cavity, the circuit board and the assembling part are arranged in the containing cavity, the panel is in sealed connection with the end, away from the pin, of the shell, and the problems that an existing waterproof charger is poor in waterproof effect and large in installation difficulty are solved.

Description

Technical Field

[0001] The utility model belongs to the field of chargers, and particularly relates to a USB waterproof charger. Background Art

[0002] Disclosing the information of this background art section is only intended to enhance the understanding of the overall background of the utility model, and it is not necessarily regarded as an admission or an implication in any form that this information constitutes the prior art already known to those of ordinary skill in the art.

[0003] With the popularization of electronic devices, USB chargers have become an important part of our daily lives. However, traditional USB chargers often cannot effectively prevent moisture intrusion. Once exposed to a wet environment, it may cause a short circuit in the circuit, and then damage the charger or the connected electronic device. Therefore, a charger with a waterproof USB structure is needed.

[0004] For the existing waterproof power adapter with a USB interface, a barrel-shaped waterproof component is adopted to separate the USB interface from the main circuit board, preventing water from entering the main board through the USB interface and playing a role in waterproofing the main circuit board. However, this power adapter is limited by the connection and fixation of the waterproof component and the USB interface. Structures extending outward need to be provided on both sides of the USB interface and the waterproof component. There is a problem of inconvenient positioning during the installation of this structure, and a USB structure with pins cannot be installed; the waterproof structure and the housing are in an interference fit, and the installation difficulty is relatively high; there are conductive metal parts on both the upper and lower sides of the main circuit board that need to be installed. For the convenience of installation, the housing needs to be set with openings at both ends, and the waterproof level is relatively low. Summary of the Utility Model

[0005] In order to solve the deficiencies of the prior art, the purpose of the utility model is to provide a USB waterproof charger, which solves at least one of the above problems.

[0006] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0007] A USB waterproof charger includes a panel and an assembly part. One end of the panel and the assembly part is hermetically connected, and the other end of the assembly part is hermetically connected to a gland.

[0008] The assembly part is a hollow cylindrical structure. A USB interface is installed inside the assembly part. The USB interface includes pins, and the pins pass through the connection between the assembly part and the gland.

[0009] It also includes a circuit board and a bottom cover. The circuit board is electrically connected to the USB interface through the pins.

[0010] The bottom cover includes an outer shell and metal pins integrally formed. The outer shell is provided with a receiving cavity. The circuit board and the assembly part are arranged inside the receiving cavity. The panel is hermetically connected to one end of the outer shell away from the pins.

[0011] In this utility model, the assembly part and the gland are assembled and hermetically connected, so that the lead pins extend out through the connection part of the assembly part and the gland, thereby enabling the circuit board to be electrically connected to the USB interface. In the USB component, the lead pins are fixed by the assembly part and the gland, thus realizing the fixation of the USB interface.

[0012] Preferably, the assembly part and the gland are respectively provided with lead pin slots, which are arranged at the connection part of the assembly part and the gland and are correspondingly arranged. The lead pins pass through the assembly part through the lead pin slots.

[0013] Preferably, a socket is arranged on the panel, and the socket is matched with the USB interface.

[0014] Preferably, the panel and the assembly part are integrally injection molded.

[0015] Preferably, the mutually connected ends of the assembly part and the gland are respectively provided with mutually engaging steps, and the assembly part and the gland are connected through the mutually engaging steps.

[0016] Preferably, the mutually connected ends of the panel and the housing are respectively provided with mutually engaging steps, and the panel and the housing are connected through the mutually engaging steps.

[0017] Preferably, the steps between the assembly part and the gland and the steps between the panel and the housing are all connected by ultrasonic welding.

[0018] Preferably, the circuit board is a printed circuit board, and metal elastic pieces are arranged on the circuit board. The circuit board is electrically connected to the metal pins through the metal elastic pieces.

[0019] Preferably, a plurality of electronic components are installed on the circuit board to convert alternating current into direct current.

[0020] The beneficial effects of this utility model are as follows:

[0021] 1. In this utility model, the assembly part and the gland are assembled and hermetically connected, and the lead pins extend out through the connection part of the assembly part and the gland. The lead pins are fixed by the assembly part and the gland, thus realizing the fixation of the USB interface. There is no need for a USB interface and an assembly part with a special shape, which reduces the manufacturing difficulty and cost and also makes the installation more convenient. The panel in the USB component is hermetically connected to the bottom cover, and the bottom cover is integrally arranged, further improving the waterproof performance of the charger.

[0022] 2. The circuit board of this utility model is connected to the USB interface through the lead pins and is connected to the metal pins through the metal elastic pieces. After combining the USB interface and the circuit board, it is directly installed into the bottom cover, which is convenient for installation.

[0023] 3. The charger of the present utility model has excellent waterproof performance and good electrical conductivity, which can protect the device from moisture, improve the service life and reliability of the charger. At the same time, the structure of the present invention is simple, low in cost and easy to produce, and has broad market application prospects.

[0024] 4. The charger of the present utility model has the advantages of waterproof, safe and durable, and can be widely used for charging various electronic devices. Especially in a humid environment, it can better play its waterproof advantage and protect the safety of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings forming a part of this specification are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation to the present utility model.

[0026] Figure 1 is the disassembly diagram of the waterproof charger of the embodiment of the present utility model;

[0027] Figure 2 is the structural diagram of the face cover of the waterproof charger of the embodiment of the present utility model;

[0028] Figure 3 is the structural diagram of the pressure cover of the waterproof charger of the embodiment of the present utility model;

[0029] Figure 4 is the structural diagram of the bottom cover of the waterproof charger of the embodiment of the present utility model;

[0030] Figure 5 is the assembly schematic diagram of the USB component of the waterproof charger of the embodiment of the present utility model;

[0031] Figure 6 is the assembly schematic diagram of the USB component and the circuit part of the waterproof charger of the embodiment of the present utility model;

[0032] Figure 7 is the connection structure diagram after the internal assembly of the waterproof charger of the embodiment of the present utility model is completed;

[0033] Among them, 1. Panel; 2. Assembly part; 3. USB interface; 4. Pressure cover; 5. Circuit board; 6. Metal spring piece; 7. Outer shell; 8. Metal pin; 9. Ultrasonic groove; 10. Ultrasonic wire; 11. Lead pin; 12. Second lead pin bayonet; 13. First lead pin bayonet; 14. Lead pin hole position. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] As introduced in the background art, the existing waterproof chargers have problems of poor waterproof effect and great installation difficulty. To solve the above technical problems, the present utility model proposes a USB waterproof charger.

[0035] In order to enable those skilled in the art to more clearly understand the technical solution of the present utility model, the technical solution of the present utility model will be described in detail below in conjunction with specific embodiments.

[0036] The present utility model discloses a USB waterproof charger, as Figure 1 , Figure 7 shown, which includes a face cover, a circuit part and a bottom cover. The face cover includes a panel 1 and an assembly part 2. One end of the panel 1 and the assembly part 2 is hermetically connected, and the other end of the assembly part 2 is hermetically connected to a gland 4; the assembly part 2 is a hollow cylindrical structure, and the panel 1, the assembly part 2 and the gland 4 form a receiving cavity for receiving the USB interface 3, so as to separate the USB interface 3 from the circuit part and achieve the waterproof effect of the circuit part;

[0037] The USB interface 3 is arranged inside the assembly part 2. The USB interface 3 includes pins 11, and the pins 11 penetrate out from the connection part of the assembly part 2 and the gland 4. The circuit board 5 is electrically connected to the USB interface 3 through the pins 11; after the USB interface 3 is assembled, the gland 4 is assembled and connected to the assembly part 2, which can not only fix the USB interface 3, but also connect the USB interface 3 to the circuit board 5 through the pins 11;

[0038] The bottom cover includes a housing 7 and pins integrally formed. The housing 7 is provided with a receiving cavity, and the circuit board 5 and the assembly part 2 are installed in the receiving cavity. The charger circuit part is safely waterproofed by hermetically connecting the panel 1 to one end of the housing 7 away from the pins.

[0039] As Figure 2 , Figure 3 shown, in some embodiments, a first pin bayonet 13 is arranged on the assembly part 2, a second pin bayonet 12 is arranged on the gland 4, and the pin bayonet of the pins 11 is arranged at the connection part of the assembly part 2 and the gland 4 and is oppositely arranged. The pins 11 penetrate out of the assembly part 2 through the pin bayonet; specifically, the USB interface 3 is provided with a plurality of pins 11, the first pin bayonet 13 and the second pin bayonet 12 are oppositely arranged and have the same number as the number of pins 11. The assembly part 2 and the gland 4 are hermetically arranged, and a sealed structure is also formed here after the pins 11 penetrate out through the pin bayonet; in a preferred embodiment, the USB interface 3 is provided with 4 pins 11, and the first pin bayonet 13 and the second pin bayonet 12 are also provided with 4.

[0040] As Figure 1 shown, in some embodiments, a socket is arranged on the panel 1, the socket is arranged at the corresponding position of the USB interface 3, and the socket matches the shape and size of the USB interface 3.

[0041] In some embodiments, the panel 1 and the assembly part 2 are integrally injection molded, which not only reduces the installation difficulty but also improves the waterproof performance of the charger.

[0042] As Figure 2 , Figure 3 shown, in some embodiments, steps are provided along the outer edges of the opposite end faces of the assembly part 2 and the gland 4, and the two opposite steps are engaged with each other. The assembly part 2 and the gland 4 are connected through the engaged steps; preferably, ultrasonic welding is performed between the two opposite steps to achieve the sealed connection of the assembly part 2 and the gland 4.

[0043] Further preferably, an ultrasonic groove 9 is provided in a whole circle on the step of the end face of the assembly part 2, an ultrasonic line 10 is provided in a whole circle on the outer edge step of the end face of the gland 4, and ultrasonic grooves 9 and ultrasonic lines 10 are also respectively provided at the bayonet of the lead pin 11. Ultrasonic welding is performed on the ultrasonic groove 9 and the ultrasonic line 10 to achieve the sealed connection of the assembly part 2 and the gland 4.

[0044] As Figure 2 , Figure 4 shown, in some embodiments, steps are also provided along the outer edges of the opposite end faces of the panel 1 and the housing 7, and the two opposite steps are engaged with each other. The panel 1 and the housing 7 are connected through the engaged steps; preferably, ultrasonic welding is performed between the two opposite steps to achieve the sealed connection of the panel 1 and the housing 7.

[0045] Further preferably, an ultrasonic groove 9 is provided in a whole circle on the step of the end face of the panel 1, an ultrasonic line 10 is provided in a whole circle on the step of the end face of the housing 7, and ultrasonic welding is performed on the ultrasonic groove 9 and the ultrasonic line 10 to achieve the sealed connection of the panel 1 and the housing 7.

[0046] As Figure 5 , Figure 6 , Figure 7 shown, in some embodiments, the circuit board 5 is a printed circuit board 5 PCBA, and a plurality of electronic components are installed on the circuit board 5 to convert alternating current into direct current; a plurality of lead pin holes 14 are also provided at corresponding positions on the circuit board 5, and the lead pins 11 are inserted into the vacant positions of the lead pins 11 to achieve the electrical connection between the circuit board 5 and the USB interface 3;

[0047] A metal spring piece 6 is provided at the lower end of the circuit board 5, and the circuit of the circuit board 5 is electrically connected to the metal pin 8 through the metal spring piece 6. The structure of the circuit board and the setting of specific electronic components are all prior arts, and those skilled in the art can make conventional settings according to the specific functions of the charger.

[0048] In some embodiments, by using the die-casting molding process, the metal pin 8 is placed in the bottom cover mold for injection molding, so that the plug part is completely enclosed to prevent moisture from invading the circuit board 5 through the plug part.

[0049] In some embodiments, the circuit part includes a circuit board 5, electronic components, etc., all of which are waterproofed to further prevent moisture from damaging the circuit.

[0050] During assembly, as Figure 5 shown, first assemble the USB interface 3 into the face cover, then assemble the gland 4 with the assembly part 2 of the face cover, and ultrasonically weld the gland 4 and the face cover through ultrasonic welding to achieve the sealing between the gland 4 and the face cover;

[0051] Then, as Figure 6 shown, assemble the USB component with the circuit board 5, and assemble and weld the 4 pins 11 of the USB interface 3 with the USB holes on the circuit board 5;

[0052] Assemble the circuit part and the USB component onto the bottom cover. The metal shrapnel 6 on the circuit board 5 contacts the metal pins 8 on the bottom cover to conduct electricity, and then ultrasonically weld the face cover and the bottom cover to achieve a sealed connection.

[0053] The charger makes the circuit board 5 not communicate with the outside through the panel 1, the assembly part 2 and the face cover. Even if the charger is drenched with water, the moisture will not contact the circuit part, realizing the waterproof function of the charger.

[0054] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A USB waterproof charger, characterized in that, It includes a panel and an assembly part. One end of the panel and the assembly part is hermetically connected, and the other end of the assembly part is hermetically connected to a gland; The assembly part is a hollow cylindrical structure. A USB interface is installed inside the assembly part. The USB interface includes pins, and the pins pass through the connection between the assembly part and the gland; It also includes a circuit board and a bottom cover. The circuit board is electrically connected to the USB interface through the pins; The bottom cover includes an integrally formed outer shell and metal pins. The outer shell is provided with a receiving cavity. The circuit board and the assembly part are arranged in the receiving cavity, and the panel is hermetically connected to one end of the outer shell away from the pins.

2. The USB waterproof charger according to claim 1, wherein, The assembly part and the gland are respectively provided with pin bayonets. The pin bayonets are arranged at the connection between the assembly part and the gland and are correspondingly arranged. The pins pass through the assembly part through the pin bayonets.

3. The USB waterproof charger according to claim 1, wherein A socket is arranged on the panel, and the socket matches the USB interface.

4. The USB waterproof charger according to claim 1, characterized in that, The panel and the assembly part are integrally injection-molded.

5. The USB waterproof charger according to claim 1, wherein One ends of the assembly part and the gland that are connected to each other are respectively provided with mutually engaging steps, and the assembly part and the gland are connected through the mutually engaging steps.

6. The USB waterproof charger according to claim 5, characterized in that, One ends of the panel and the outer shell that are connected to each other are respectively provided with mutually engaging steps, and the panel and the outer shell are connected through the mutually engaging steps.

7. The USB waterproof charger according to claim 6, characterized in that, The steps between the assembly part and the gland and the steps between the panel and the outer shell are all connected by ultrasonic welding.

8. The USB waterproof charger according to claim 1, characterized in that, The circuit board is a printed circuit board. Metal spring pieces are arranged on the circuit board, and the circuit board is electrically connected to the metal pins through the metal spring pieces.

9. The USB waterproof charger according to claim 1, wherein, Multiple electronic components are installed on the circuit board to convert alternating current into direct current.

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