CN215734959U

CN215734959U - ATSE is with display panel circuit of high electrostatic protection level

Info

Publication number: CN215734959U
Application number: CN202121527057.9U
Authority: CN
Inventors: 赵旺旺; 李松梁
Original assignee: Schneider Wingoal Tianjin Electric Equipment Co Ltd
Current assignee: Schneider Wingoal Tianjin Electric Equipment Co Ltd
Priority date: 2021-07-06
Filing date: 2021-07-06
Publication date: 2022-02-01
Anticipated expiration: 2031-07-06

Abstract

The utility model provides a display panel circuit with high electrostatic protection level for ATSE (automatic transfer switching element), which relates to the technical field of switch equipment and aims to solve the problems that in the prior art, under the high electrostatic level, a power supply on a display panel is easy to interfere and can also spread to a power supply system of the whole system, especially a weak current system such as 3.3V, 5V and the like. In addition, the LED lamp is used as a diode device, the reverse voltage resistance is low, and the LED lamp is easy to break down, so the protection of the diode is also an important technical problem.

Description

ATSE is with display panel circuit of high electrostatic protection level

Technical Field

The utility model relates to the technical field of switch equipment, in particular to a display panel circuit with high electrostatic protection level for ATSE.

Background

In an Automatic Transfer Switching Equipment (ATSE), an optical signal, such as an LED lamp, is often required to indicate various information of the ATSE switch, such as the status of each power source, the position of each switch, (closed, off, or tripped). In addition, aiming at high-grade ATSE, the number of switches required to be displayed and controlled is generally more than or equal to 3, and the switches also need to have the function of manual operation of a controller. Thus, a large number of lights and buttons are required to implement such functions, and the display and manual buttons are undoubtedly located at the forefront of the product, facilitating display and user operation. However, when the display panel is on the surface, due to a complex use environment, the panel may be subjected to various EMC interferences, where static electricity is the EMC interference that most damages the display panel, and the static electricity grades in the environment are different from each other, and the highest grade static electricity requirement in the national standard requirement is 15 kV.

In the course of implementing the present invention, the applicant has found that the prior art has at least the following technical problems: under high static electricity level, the power supply on the display panel is easy to be interfered, and the power supply system of the whole system, especially weak current system, such as 3.3V, 5V, etc. is also affected. In addition, the LED lamp is used as a diode device, the reverse withstand voltage is low, and the LED lamp is easy to break down, so that the protection of the diode is particularly important.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a display panel circuit with high electrostatic protection level for ATSE (automatic transfer switching) to solve the problems that the power supply on a display panel is easy to interfere and can also spread the power supply system of the whole system, especially weak power systems such as 3.3V and 5V, and the like under the high electrostatic level in the prior art. In addition, the LED lamp is used as a diode device, the reverse withstand voltage is low, and the LED lamp is easy to break down, so that the protection of the diode is also an important technical problem. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the utility model are described in detail in the following.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a display panel circuit with high electrostatic protection level for ATSE, which comprises a capacitor, a resistor, an LED lamp, an ESD diode, a connector and a PCB, wherein,

the resistor for dividing voltage is arranged between the capacitor and the LED lamp, the ESD diode for protection is connected with the LED lamp in parallel, the connector is connected with the chip for control, the LED lamp and the ESD diode are arranged on the surface of the PCB, the holes are punched around the PCB and are connected with the ground plane, and the PCB is provided with a complete ground plane and a complete level plane.

Preferably, the ESD diodes are connected in parallel with the LED lamp in opposite directions.

Preferably, the LED lamp is subjected to dispensing treatment.

Preferably, the LED lamp is provided with a light guiding pole.

According to the display panel circuit with the high electrostatic protection level for the ATSE, the current passing through the LED lamp is reduced through the front resistor, the failure probability of the LED lamp is further reduced, the electrostatic signal of the loop is preferentially conducted through the ESD diode, the LED lamp is protected from being damaged by static electricity, static electricity is absorbed by connecting the PCB board through the through hole and the ground plane, the circuit is protected from being affected by the fact that local voltage is increased.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of an embodiment of a high ESD protection level display panel circuit for ATSE according to the present invention.

In the figure: 1. a capacitor; 2. a resistance; 3. an LED lamp; 4. an ESD diode; 5. a connecting head.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

In describing the embodiments of the present invention, the viewing angle of fig. 1 is defined as a schematic diagram of a circuit of a display panel with high esd protection level for ATSE according to the embodiments of the present invention. In the description of the embodiments of the present invention, it should be understood that the terms "vertical", "horizontal", "upper", "lower", "left", "right", "vertical", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only used for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "disposed," "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Specific meanings of the above terms in the embodiments of the present invention will be understood by those of ordinary skill in the art through specific situations. Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the embodiments of the present invention, and are not to be construed as limiting the embodiments of the present invention.

The following describes in detail a specific embodiment of the present invention with reference to the drawings. In the drawings, the same reference numerals indicate the same or corresponding features. The figures are only schematic and are not necessarily drawn to scale.

Referring to fig. 1, the present invention provides a display panel circuit with high ESD protection level for ATSE, comprising a capacitor 1, a resistor 2, an LED lamp 3, an ESD diode 4, a connector 5 and a PCB, wherein,

the resistor 2 for voltage division is arranged between the capacitor 1 and the LED lamp 3, the ESD diode 4 for protection is connected with the LED lamp 3 in parallel, the connector 5 is connected with a chip for control, the LED lamp 3 and the ESD diode 4 are arranged on the surface of the PCB, holes are drilled around the PCB and are connected with a ground plane, and the PCB is provided with a complete ground plane and a level plane.

Specifically, a resistance one end connection electric capacity for partial pressure, a resistance other end connection LED lamp for partial pressure, ESD diode both ends parallel connection for the protection is at LED lamp both ends, the LED lamp is connected to connector one end, the chip that is used for control is connected to the connector other end, the hole is perforated around the PCB board, and be connected with the horizon, PCB board has complete horizon and level face simultaneously, arrange the resistance of LED lamp series connection in between LED lamp and the power supply electric capacity, the other one end of LED lamp directly links to each other with the chip. Static generally comes from spreading the great electric plane of copper area or ground level, and the first series resistance that passes through of static signal like this when LED lamp, and series resistance can restrict some electric current to share partial voltage, so, the electric current that flows through the LED will reduce, thereby reduce its probability of failure, in addition, connect an ESD diode in parallel at LED lamp both ends, this ESD diode is preferred to be switched on when static signal passes through the LED lamp return circuit, absorbs the electrostatic energy, the protection LED lamp is not damaged by static. The LED lamp, the ESD diode and other devices are placed on the surface of the PCB, the rest of the devices are paved on a ground plane except for necessary wiring, a proper number of through holes are punched on the periphery of the devices to be connected with the ground plane of the other layer, the shape of the devices is surrounded by a stroke, the integrity of the plane is guaranteed as much as possible, when static electricity strikes the plane, the whole plane absorbs static electricity energy, and the local voltage of the plane is not increased to influence a circuit.

As an alternative embodiment, the ESD diodes 4 are connected in parallel with the LED lamp 3 in the opposite direction.

Specifically, the ESD diode is connected with the LED lamp in parallel in the opposite direction, and the ESD diode is preferentially conducted when an electrostatic signal passes through the loop of the LED lamp to absorb electrostatic energy and protect the LED lamp from being damaged by static electricity.

As an alternative embodiment, the LED lamp 3 is subjected to a dispensing process.

Specifically, the LED lamp is subjected to dispensing treatment, the glue is hardened and then used as a layer of insulating material to cover the surface of the LED lamp, static electricity cannot directly contact the LED lamp, and the purpose of protecting the LED lamp is achieved.

As an alternative embodiment, the LED lamp 3 is provided with a light guiding pole.

Specifically, the LED lamp is equipped with the leaded light post, and the purpose is for the problem of effectual solution to electrical power generating system interference.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A display panel circuit with high electrostatic protection level for ATSE is characterized in that: comprises a capacitor (1), a resistor (2), an LED lamp (3), an ESD diode (4), a connector (5) and a PCB, wherein,

be used for the partial pressure resistance (2) set up electric capacity (1) with between LED lamp (3), be used for the protection ESD diode (4) with LED lamp (3) parallel connection, the chip that is used for control is connected in connector (5), LED lamp (3) reach ESD diode (4) set up PCB board surface, just it links to each other with the ground plane to beat the hole around the PCB board, the PCB board has complete ground plane and level surface.

2. The display panel circuit with high electrostatic protection level for ATSE according to claim 1, wherein: the ESD diode (4) is connected in parallel with the LED lamp (3) in the opposite direction.

3. The display panel circuit with high electrostatic protection level for ATSE according to claim 1, wherein: and the LED lamp (3) is subjected to dispensing treatment.

4. The display panel circuit with high electrostatic protection level for ATSE according to claim 1, wherein: the LED lamp (3) is provided with a light guide column.