Charger ESD protection device

Abstract

The utility model provides an ESD (Electro-Static Discharge) protection device of a charger, which belongs to the technical field of chargers, mainly aims at solving the problem that the existing protection device cannot protect static electricity, and adopts the technical scheme that the ESD protection device comprises a PCB (Printed Circuit Board), a first capacitor arranged at the top of the PCB, a USB (Universal Serial Bus) interface arranged at one side of the first capacitor and a second capacitor arranged at one side of the first capacitor, an isolation vertical plate is arranged between the first capacitor and the second capacitor, the isolation vertical plate is S-shaped, one end of the isolation vertical plate is provided with a first concave part, the other end of the isolation vertical plate is provided with a second concave part, and the bottom of the isolation vertical plate is provided with an isolation transverse plate; a user can insert the isolation vertical plate between the first capacitor and the second capacitor, the isolation transverse plate can cover a primary pole device optocoupler on the PCB, the protection device can increase the creepage distance of a primary pole, when static electricity enters a charger from a secondary pole, the static electricity can be introduced into the ground, and therefore the static electricity is released to protect the charger, and safety is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to charger technical field, more specifically, especially, it is related to a kind of charger ESD protection device. BACKGROUND

[0002] As a kind of electronic product, its internal circuit structure is complex, integrated with multiple electronic components, these electronic components are susceptible to static interference and damage in use process, once static discharge occurs, it can cause the damage of charger internal components, even cause fire hazard and other security risks.

[0003] As patent number for 202121035070.2 Chinese utility model patent, provides a kind of charger protection device, the device is set through box, door, power switch, temperature measuring device, charging socket and electromagnetic relay and other parts, the device can be charged and powered off by temperature measuring device control electromagnetic relay attraction, avoid sustained charging heat generation spontaneous combustion, however, traditional protection device cannot be static protected, the electronic components of charger are easily damaged by static, and the security is lower. UTILITY MODEL CONTENT

[0004] To solve the above technical problems, the utility model provides a kind of charger ESD protection device, to solve the technical problem in prior art, traditional protection device cannot be static protected, the electronic components of charger are easily damaged by static, and the security is lower.

[0005] The purpose and effect of the charger ESD protection device are achieved by the following specific technical means:

[0006] A kind of charger ESD protection device, including PCB board, the first capacitor is arranged at the top of the PCB board, the USB interface is arranged at the side of the first capacitor, the second capacitor is arranged at the side of the first capacitor, the isolation vertical plate is arranged between the first capacitor and the second capacitor, the isolation vertical plate is S-shaped, the first inner recess is formed in one end of the isolation vertical plate, the second inner recess is arranged at the other end of the isolation vertical plate, and the isolation horizontal plate is arranged at the bottom of the isolation vertical plate.

[0007] According to a preferred embodiment, three groups of recesses are formed in the bottom of the isolation horizontal plate, the three groups of recesses are arranged in sequence and divided equally, the second semicircular groove and trapezoidal groove for accommodating component pins are formed in one side of the isolation horizontal plate, the first semicircular groove for accommodating screws is formed in one end of the isolation horizontal plate close to the USB interface, and the rectangular groove for connecting with the PCB board is formed in the top of the isolation horizontal plate.

[0008] According to a preferred embodiment, the isolation horizontal plate is provided with a placing piece away from one end of the USB interface, the placing piece is fixedly connected with the one end of the isolation horizontal plate away from the USB interface, and a chip is arranged on the top of the placing piece.

[0009] According to a preferred embodiment, the chip is connected with the PCB board, and a placing through slot is formed in the bottom of the placing piece, and the chip is arranged in the placing through slot.

[0010] According to a preferred embodiment, the top of the isolation vertical plate is provided with three groups of protrusions, the three groups of protrusions are arranged on the top of the isolation vertical plate in sequence, the surface of the isolation vertical plate is provided with a plurality of arrow-shaped protrusions, and the outer wall of the isolation vertical plate is connected with the PCB board through the plurality of arrow-shaped protrusions.

[0011] According to a preferred embodiment, the second capacitor is arranged in the first inner recess, the first capacitor is arranged on the side of the isolation vertical plate away from the second capacitor, and the USB interface is arranged in the second inner recess.

[0012] According to a preferred embodiment, the bottom of the isolation vertical plate is fixedly connected with the isolation horizontal plate, the top of the isolation horizontal plate is clamped with the PCB board, and the outer wall of the isolation vertical plate is clamped with the PCB board.

[0013] Compared with the prior art, the utility model has the advantages of the following beneficial effects:

[0014] 1. Through the cooperation of the isolation horizontal plate and the isolation vertical plate, the user can insert the isolation vertical plate between the first capacitor and the second capacitor, the isolation horizontal plate can cover the primary device optocoupler on the PCB board, the protective device can increase the creepage distance of the primary, when static electricity enters the charger from the secondary, the static electricity can be introduced into the ground, thereby releasing the static protection of the charger, and the problem that the traditional protective device cannot perform static protection is solved.

[0015] 2. Through the arrangement of the first inner recess and the second inner recess, damage to the USB interface and the second capacitor can be prevented when the user inserts the isolation vertical plate into the PCB board, the safety is improved, through the arrangement of the arrow-shaped protrusions, the isolation vertical plate can be clamped into the PCB board, through the arrangement of the rectangular slot, the isolation horizontal plate can be clamped with the bottom of the PCB board, and the convenience is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the charger ESD protection device of the utility model;

[0017] Figure 2 It is an explosion view of the charger ESD protection device of the utility model;

[0018] Figure 3 Figure 1 is a right view of the charger ESD protection device of the utility model;

[0019] Figure 4 Figure 4 is a structure diagram of the isolation horizontal plate and the isolation vertical plate in the charger ESD protection device of the utility model;

[0020] Figure 5 Figure 5 is a structure diagram of the placing piece in the charger ESD protection device of the utility model.

[0021] In the figure, the corresponding relationship between the component name and the drawing number is as follows:

[0022] 100, PCB board; 101, first capacitor; 102, second capacitor; 103, USB interface; 104, chip; 105, isolation vertical plate; 106, first inner recess; 107, second inner recess; 108, arrow-shaped protrusion; 109, isolation horizontal plate; 110, groove; 111, trapezoidal slot; 112, second semicircular slot; 113, first semicircular slot; 114, rectangular slot; 115, placing piece; 116, placing through slot. DETAILED DESCRIPTION

[0023] The embodiment of the utility model will be described in further detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0024] Example:

[0025] As shown in the accompanying Figure 1 to the accompanying Figure 5 , it is shown that:

[0026] The utility model provides a kind of charger ESD protection device, including PCB board 100, first capacitor 101 is arranged on the top of PCB board 100, USB interface 103 is arranged on the side of first capacitor 101, second capacitor 102 is arranged on the side of first capacitor 101, isolation vertical plate 105 is arranged between first capacitor 101 and second capacitor 102, isolation vertical plate 105 is S-shaped, isolation horizontal plate 109 is arranged in the bottom of isolation vertical plate 105, by the cooperation of isolation horizontal plate 109 and isolation vertical plate 105, user can be inserted into first capacitor 101 and second capacitor 102 between isolation vertical plate 105, that is, the middle position adjacent to primary pole, isolation horizontal plate 109 can cover the primary pole device photocoupler on PCB board 100, its principle is to increase the creepage distance of primary pole, when static electricity enters charger from secondary pole, it can flow back to ground from discharge needle and Y capacitor smoothly, to release static electricity protection charger, and the product without protection is vulnerable to damage sensitive device, lead to charger damage and cause some unsafe factors.

[0027] The bottom of the isolation horizontal plate 109 is provided with three groups of grooves 110, which are arranged in equal intervals in sequence. The three groups of grooves 110 can be connected with the shell of an external charger. The side of the isolation horizontal plate 109 is provided with a second semicircular groove 112 and a trapezoidal groove 111 for accommodating the pins of components, so as to prevent the user from damaging the pins of components when installing the isolation horizontal plate 109. The end of the isolation horizontal plate 109 close to the USB interface 103 is provided with a first semicircular groove 113 for accommodating a screw, so as to prevent the screw from damaging the isolation horizontal plate 109 when the user fixes the PCB board 100 by the screw. The top of the isolation horizontal plate 109 is provided with a rectangular groove 114 for connecting with the PCB board 100. The bottom of the PCB board 100 can be clamped through the rectangular groove 114.

[0028] The end of the isolation horizontal plate 109 away from the USB interface 103 is provided with a placing piece 115, which is fixedly connected with the end of the isolation horizontal plate 109 away from the USB interface 103. The top of the placing piece 115 is provided with a chip 104, which is connected with the PCB board 100. The bottom of the placing piece 115 is provided with a placing through groove 116, in which the chip 104 is arranged. The placing through groove 116 can prevent the placing piece 115 from covering the chip 104, so that the heat generated by the chip 104 during work cannot be dissipated, which may damage the chip 104. The placing piece 115 can provide protection for the chip 104.

[0029] As shown in Figures 2 to 5 , one end of the isolation vertical plate 105 is provided with a first inner recess 106, and the other end of the isolation vertical plate 105 is provided with a second inner recess 107. The second capacitor 102 is arranged in the first inner recess 106, and the first capacitor 101 is arranged on the side of the isolation vertical plate 105 away from the second capacitor 102. The USB interface 103 is arranged in the second inner recess 107. The first inner recess 106 and the second inner recess 107 can prevent the user from damaging the USB interface 103 and the second capacitor 102 when inserting the isolation vertical plate 105 into the PCB board 100, thereby improving the safety.

[0030] The top of the isolation vertical plate 105 is provided with three groups of protrusions arranged in sequence on the top of the isolation vertical plate 105, and the surface of the isolation vertical plate 105 is provided with multiple arrow-shaped protrusions 108, the outer wall of the isolation vertical plate 105 is connected with the PCB plate 100 through the multiple arrow-shaped protrusions 108, the bottom of the isolation vertical plate 105 is fixedly connected with the isolation horizontal plate 109, the top of the isolation horizontal plate 109 is clamped with the PCB plate 100, and the outer wall of the isolation vertical plate 105 is clamped with the PCB plate 100, when a user needs to install the isolation vertical plate 105 and the isolation horizontal plate 109 on the PCB plate 100, the isolation vertical plate 105 can be inserted between the first capacitor 101 and the second capacitor 102, the arrow-shaped protrusions 108 on the isolation vertical plate 105 are clamped with the PCB plate 100, and the rectangular slot 114 on the isolation horizontal plate 109 is clamped with the PCB plate 100.

[0031] The embodiments of the present application are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present application to the forms disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. Embodiments were chosen and described in order to best explain the principles of the present application and its practical application, and to enable others skilled in the art to understand the present application for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A charger ESD protection device comprising a PCB board (100), characterized in that: The first capacitor (101) is provided on the top of the PCB (100), one side of the first capacitor (101) is provided with a USB interface (103), one side of the first capacitor (101) is provided with a second capacitor (102), an isolation vertical plate (105) is arranged between the first capacitor (101) and the second capacitor (102), the isolation vertical plate (105) is S-shaped, a first inner recess (106) is formed at one end of the isolation vertical plate (105), a second inner recess (107) is arranged at the other end of the isolation vertical plate (105), and an isolation horizontal plate (109) is arranged at the bottom of the isolation vertical plate (105).

2. A charger ESD protection device as claimed in claim 1, characterized in that: Three groups of grooves (110) are formed at the bottom of the isolation horizontal plate (109), the three groups of grooves (110) are arranged in equal intervals in sequence, a second semicircular groove (112) and a trapezoidal groove (111) for accommodating the pins of components are formed at one side of the isolation horizontal plate (109), a first semicircular groove (113) for accommodating screws is formed at one end of the isolation horizontal plate (109) close to the USB interface (103), and a rectangular groove (114) for connecting with the PCB (100) is formed at the top of the isolation horizontal plate (109).

3. A charger ESD protection device as claimed in claim 1, wherein: A placing piece (115) is arranged at one end of the isolation horizontal plate (109) away from the USB interface (103), the placing piece (115) is fixedly connected with one end of the isolation horizontal plate (109) away from the USB interface (103), and a chip (104) is arranged at the top of the placing piece (115).

4. A charger ESD protection device as claimed in claim 3, characterized in that: The chip (104) is connected with the PCB (100) at the top, a placing groove (116) is formed at the bottom of the placing piece (115), and the chip (104) is arranged in the placing groove (116).

5. A charger ESD protection device as claimed in claim 1, wherein: Three groups of protrusions are arranged at the top of the isolation vertical plate (105), the three groups of protrusions are arranged in sequence at the top of the isolation vertical plate (105), a plurality of arrow-shaped protrusions (108) are arranged on the surface of the isolation vertical plate (105), and the outer wall of the isolation vertical plate (105) is connected with the PCB (100) through the plurality of arrow-shaped protrusions (108).

6. A charger ESD protection device as claimed in claim 1, characterized in that: The second capacitor (102) is arranged in the first inner recess (106), the first capacitor (101) is arranged on the side of the isolation vertical plate (105) away from the second capacitor (102), and the USB interface (103) is arranged in the second inner recess (107).

7. A charger ESD protection device as claimed in claim 1, wherein: The bottom of the isolation vertical plate (105) is fixedly connected with the isolation horizontal plate (109), the top of the isolation horizontal plate (109) is clamped with the PCB (100), and the outer wall of the isolation vertical plate (105) is clamped with the PCB (100).

Images