Side-inserted USB charger with high waterproof grade

Abstract

The utility model discloses a high waterproof level side plug USB charger, which comprises an upper cover, a machine board, a lower cover and a USB interface, the USB interface comprises a first pin, a second pin and a third pin, the first contact pin and the first pin are bent by 90 degrees on a plane formed by a first elastic sheet, a second elastic sheet, a third elastic sheet and a fourth elastic sheet to be electrically connected with the machine board, and the second contact pin is electrically connected with the machine board. According to the USB interface charger, the pins are arranged on the supporting plate, the middle pins can be directly punched off in a reserved punching mode, and automatic production of the USB interface charger is achieved; the contact position between the upper cover and the lower cover adopts the combination of a shearing ultrasonic structure and a traditional plane ultrasonic structure, and the technical problems that a waterproof structure is complex, high in manufacturing difficulty and high in cost, and errors or instability in the production and manufacturing process easily cause waterproof failure are solved. And the production cost is low, the automatic production degree is high, the production efficiency is high, and the waterproof grade is high.

Description

Technical Field

[0001] The utility model relates to the manufacturing field of USB chargers, in particular to a side-insert USB charger with a high waterproof level. Background Art

[0002] Many MP3 players, mobile phones, etc. are equipped with USB chargers, which are devices used to charge electronic products by connecting to a computer or a charger through a USB interface, with a data cable serving as the power cord; at the same time, a transformer is equipped, and the output port is a USB interface, which can charge all electrical appliances with a standard socket, greatly facilitating people's lives. The existing USB interface chargers mainly include a housing, a circuit board, and a USB interface. The USB interface is usually connected to the circuit board using a vertical or horizontal plug-in structure. The USB interface has four elastic pieces and corresponding pin feet, and is electrically connected to the circuit board through the pin feet. Usually, only a USB charger for the charging mode is required, and the two middle pin feet for data transmission need to be short-circuited. In the traditional manufacturing process, the pin feet are messy and require reprocessing, making it impossible to achieve fully automated production, resulting in low production efficiency; secondly, the waterproof structure adopted by the housing of the existing USB charger is mainly the design of a sealing ring or glue. To achieve a high waterproof level, the structure is complex, the manufacturing difficulty is high, the cost is high, and it is extremely easy to have errors or instability in the manufacturing process, resulting in waterproof failure. Summary of the Utility Model

[0003] In order to overcome the shortcomings and deficiencies of the prior art, the utility model provides a side-insert USB charger with a high waterproof level, which solves the technical problems that after the existing USB charger is basically formed, the pin feet are messy, the two middle pin feet for data transmission need to be opened, and reprocessing cannot achieve fully automated production, resulting in low production efficiency, and the waterproof structure is complex, the manufacturing difficulty is high, the cost is high, and it is extremely easy to have errors or instability in the manufacturing process, resulting in waterproof failure.

[0004] The utility model achieves the above object through the following technical solutions: A side-insert USB charger with a high waterproof level includes an upper cover, a circuit board, and a lower cover. The upper cover has a receiving cavity, and a USB interface is arranged in the receiving cavity. The USB interface includes a first elastic piece, a second elastic piece, a third elastic piece, a fourth elastic piece, a first pin foot, a second pin foot, and a third pin foot. The second elastic piece and the third elastic piece are connected to the second pin foot. After the second pin foot and the third pin foot are connected and merged, a first contact foot is formed. The first contact foot and the first pin foot are bent 90 degrees on the plane formed by the first elastic piece, the second elastic piece, the third elastic piece, and the fourth elastic piece and are electrically connected to the circuit board; at least one ultrasonic waterproof structure is arranged at the contact position between the upper cover and the lower cover.

[0005] Preferably, the first pin, the second pin, and the third pin are arranged on a support plate, the support plate is arranged at the rear end of the USB interface, and the support plate is provided with a punching hole at the position of the second pin.

[0006] Preferably, the second pin is disconnected at the punching hole.

[0007] Preferably, the upper cover and the lower cover are assembled together by means of an alternating fit of grooves and ridges.

[0008] Preferably, the ultrasonic waterproof structure includes a shear ultrasonic structure and a planar ultrasonic structure.

[0009] Preferably, the first ridge of the upper cover is fitted with the first groove of the lower cover. The cross-section of the first ridge is rectangular. The shear ultrasonic structure is adopted at the joint between the edge of the first ridge and the wall of the first groove, and the planar ultrasonic structure is adopted at the joint between the plane of the first ridge and the wall of the first groove.

[0010] Preferably, two shear ultrasonic structures are provided, and one planar ultrasonic structure is provided.

[0011] Preferably, the cross-section of the shear ultrasonic structure is a combined figure of a right angle and an arc, and the contact at both ends of the shear ultrasonic structure between the first ridge and the wall of the first groove is a bevel.

[0012] Preferably, the cross-section of the planar ultrasonic structure is triangular, and the contact between the first ridge and the wall of the first groove is a plane.

[0013] Preferably, the support plate is provided with support reinforcement columns, the support reinforcement columns are arranged on the other side of the support plate where the pins are located, and the support reinforcement columns are arranged at the position between the first contact angle and the first pin.

[0014] Compared with the prior art, the beneficial effects obtained by the present utility model are:

[0015] A side - inserted USB charger with a high waterproof level disclosed by the utility model comprises an upper cover, a circuit board and a lower cover. The upper cover has a receiving cavity, and a USB interface is arranged in the receiving cavity. The USB interface includes a first elastic sheet, a second elastic sheet, a third elastic sheet, a fourth elastic sheet, a first pin, a second pin and a third pin. The second elastic sheet and the third elastic sheet are connected to the second pin. After the second pin and the third pin are connected and merged, a first contact pin is formed. The first contact pin and the first pin are bent 90 degrees on the plane formed by the first elastic sheet, the second elastic sheet, the third elastic sheet and the fourth elastic sheet and are electrically connected to the circuit board. The elastic sheets and pins of the USB interface are on the same plane without individual bending, so that the layout is neat and the structure is more firm. The pins are arranged on a support plate in a way of leaving punching holes, and the middle pin can be directly cut off, realizing the automatic production of the USB interface charger. At least one ultrasonic waterproof structure is arranged at the contact position between the upper cover and the lower cover. By combining a shear ultrasonic structure and a traditional planar ultrasonic structure, that is, on the basis of the traditional planar ultrasonic waterproof structure with horizontal vibration friction welding, two shear ultrasonic structures with vibration friction welding on the inclined plane are added at both ends, solving the technical problems of complex waterproof structure, high manufacturing difficulty, high cost, and extremely easy waterproof failure caused by errors or instability in the production and manufacturing process. It has the beneficial effects of low production cost, high degree of automatic production, high production efficiency and high waterproof level. As a preferred embodiment, a support and reinforcement column is arranged on the other side of the support plate where the pins are located, and the support and reinforcement column is arranged at the position between the first contact angle and the first pin to further ensure the structural reliability of the pins. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art.

[0017] Figure 1 Exploded view of a side - inserted USB charger with a high waterproof level of the present utility model.

[0018] Figure 2 Schematic diagram of the ultrasonic structure of a side - inserted USB charger with a high waterproof level of the present utility model.

[0019] Figure 3 Schematic diagram of the side - insertion of the USB of a side - inserted USB charger with a high waterproof level of the present utility model.

[0020] Reference Numerals: 1 - upper cover; 11 - accommodating cavity; 12 - first rib; 2 - circuit board; 3 - lower cover; 31 - first groove; 4 - USB interface; 41 - first pin; 42 - second pin; 43 - third pin; 44 - first contact pin; 45 - support plate; 451 - punching hole; 452 - support reinforcement column; 5 - ultrasonic waterproof structure; 51 - shear ultrasonic structure; 52 - planar ultrasonic structure. Detailed Embodiment

[0021] The following further describes the present invention in conjunction with the attached drawings of the specification and specific embodiments. However, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0022] Please refer to the attached Figure 1 to the attached Figure 3 . A side - inserted USB charger with a high waterproof level includes an upper cover 1, a circuit board 2, and a lower cover 3. The upper cover 1 has an accommodating cavity 11, and a USB interface 4 is disposed in the accommodating cavity 11. The USB interface 4 includes a first elastic sheet, a second elastic sheet, a third elastic sheet, a fourth elastic sheet, a first pin 41, a second pin 42, and a third pin 43. The second elastic sheet and the third elastic sheet are connected to the second pin 42. After the second pin 42 and the third pin 43 are connected and merged, a first contact pin 44 is formed. The first contact pin 44 and the first pin 41 are bent 90 degrees on the plane formed by the first elastic sheet, the second elastic sheet, the third elastic sheet, and the fourth elastic sheet to be electrically connected to the circuit board 2. The first pin 41, the second pin 42, and the third pin 43 are disposed on a support plate 45. The support plate 45 is disposed at the rear end of the USB interface 4. The support plate 45 is provided with a punching hole 451 at the position of the second pin 42, and the second pin 42 is disconnected at the punching hole 451. The support plate 45 is provided with support reinforcement columns 452, and the support reinforcement columns 452 are disposed on the back of the support plate 45 at the position corresponding to between the first contact angle 44 and the first pin 41, further ensuring the structural reliability of the pins.

[0023] Furthermore, three ultrasonic waterproof structures 5 are provided at the contact position between the upper cover 1 and the lower cover 3, and the upper cover 1 and the lower cover 3 are assembled together by using grooves and ridges at intervals, and the first ridge 12 of the upper cover 1 is engaged with the first groove 31 of the lower cover 3, and the cross-section of the first ridge 12 is rectangular, and a shear ultrasonic structure 51 is adopted at the junction of the edge of the first ridge 12 and the wall of the first groove 31, and a planar ultrasonic structure 52 is adopted at the junction of the plane of the first ridge 12 and the wall of the first groove 31.

[0024] Furthermore, the cross-section of the shear ultrasonic structure 51 is a combination of a right angle and an arc, and the contact between the first ridge 12 and the wall of the first groove 31 at both ends of the shear ultrasonic structure 51 is an inclined surface. The cross-section of the planar ultrasonic structure 52 is a triangle, and the contact between the first ridge 12 and the wall of the first groove 31 is a plane.

[0025] The above examples are only specific embodiments of the present invention. Obviously, the present invention is not limited to the above examples, and there are many similar modifications. All modifications that can be directly derived or associated with the content disclosed by ordinary technicians in this field should be considered as the scope of protection of the present invention.

Claims

1. A side-insert USB charger with a high waterproof level, characterized in that, It includes an upper cover, a motherboard and a lower cover. The upper cover has a receiving cavity, and a USB interface is arranged in the receiving cavity. The USB interface includes a first elastic sheet, a second elastic sheet, a third elastic sheet, a fourth elastic sheet, a first pin, a second pin and a third pin. The second elastic sheet and the third elastic sheet are connected to the second pin. After the second pin and the third pin are connected and merged, a first contact pin is formed. The first contact pin and the first pin are bent 90 degrees on the plane formed by the first elastic sheet, the second elastic sheet, the third elastic sheet and the fourth elastic sheet and are electrically connected to the motherboard; at least one ultrasonic waterproof structure is arranged at the contact position between the upper cover and the lower cover.

2. The side-insert USB charger with a high waterproof level as described in claim 1, characterized in that, The first pin, the second pin and the third pin are arranged on a support plate. The support plate is arranged at the rear end of the USB interface, and the support plate is provided with a punching hole at the position of the second pin.

3. The side-insert USB charger with a high waterproof level according to claim 2, characterized in that The second pin is disconnected at the punching hole.

4. The side-insert USB charger with a high waterproof level according to claim 1, characterized in that, The upper cover and the lower cover are assembled together by means of interval cooperation of grooves and ridges.

5. The side-insert USB charger with a high waterproof level as claimed in claim 1, wherein The ultrasonic waterproof structure includes a shear ultrasonic structure and a planar ultrasonic structure.

6. The side-insert USB charger with a high waterproof level as claimed in claim 4, wherein The first ridge of the upper cover is fitted with the first groove of the lower cover. The cross section of the first ridge is rectangular. The shear ultrasonic structure is adopted at the combination of the edge of the first ridge and the wall of the first groove, and the planar ultrasonic structure is adopted at the combination of the plane of the first ridge and the wall of the first groove.

7. The side-insert USB charger with a high waterproof level according to claim 6, wherein, Two shear ultrasonic structures are arranged, and one planar ultrasonic structure is arranged.

8. The side-insert USB charger with a high waterproof level according to claim 6, wherein The cross section of the shear ultrasonic structure is a combined figure of a right angle and an oblique line, and the contact positions at both ends of the wall of the first ridge and the first groove of the shear ultrasonic structure are inclined planes.

9. The side-insert USB charger with a high waterproof level according to claim 6, wherein The cross section of the planar ultrasonic structure is triangular, and the contact position between the first ridge and the wall of the first groove is a plane.

10. The side-insert USB charger with a high waterproof level according to claim 2, wherein The support plate is provided with support reinforcement columns.

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