LCD anti-static device for vehicle heater control buttons

Abstract

The present invention relates to an LCD electrostatic discharge prevention device for a vehicle heater control button. By forming a boss with a through hole in the central part on one side of an LCD holder mounted on a PCB board and connecting a contracting and contracting electrostatic induction spring to the boss so as to pass through the central hole, the connection between the grounding terminal mounted on the PCB board and the shield plate coupled to the upper surface of the LCD holder can be facilitated using the contracting and contracting electrostatic induction spring. As a result, static electricity transferred from the body due to a user's touch of the LCD cap is absorbed by the shield plate and then transmitted to the electrostatic induction spring, thereby allowing the static electricity to be removed through the grounding terminal. This facilitates the design of the heater control button. Furthermore, since it is not necessary to form a shield plate on the shield plate that contacts the grounding terminal to remove static electricity as in the prior art, the manufacturing cost of the shield plate can be reduced. Additionally, since it is not necessary to form a through hole through which the shield plate passes in the LCD holder, the manufacturing of the LCD holder can be facilitated.

Description

Technology Field

[0001] The present invention relates to an LCD anti-static device for a vehicle heater control button, and more specifically, to an LCD anti-static device for a vehicle heater control button configured such that a boss having a through hole in the central part is formed on one side of an LCD holder mounted on a Printed Circuit Board (PCB), and an electrostatic induction spring that contracts and expands is coupled to the boss so as to pass through the central hole, thereby facilitating the connection between a ground terminal mounted on the PCB and a shield plate coupled to the upper surface of the LCD holder using the electrostatic induction spring that expands and contracts. As a result, static electricity transferred from the body due to a user's touch of the LCD cap is absorbed by the shield plate and then transmitted to the electrostatic induction spring to remove static electricity through the ground terminal, thereby facilitating the design of the heater control button. Furthermore, since it is not necessary to form a shield plate that contacts the ground terminal to remove static electricity in the shield plate as in the prior art, the manufacturing cost of the shield plate can be reduced, and since it is not necessary to form a through hole through which the shield plate passes in the LCD holder, the manufacturing of the LCD holder can be facilitated. Background Technology

[0003] Generally, an air conditioning panel equipped with a heater control button that allows the air conditioning unit mounted inside the vehicle to be controlled with simple operation is installed.

[0004] Recently, LCDs are being applied to heater control buttons.

[0005] Figures 6 and 7 illustrate a heater control button with a conventional LCD applied.

[0006] As shown in FIG. 5, the heater control button is composed of a PCB board (10), an LCD holder (20) mounted on the PCB board (10), an LCD (30) having a Flexible Printed Circuit Board (FPC) formed on the upper surface of the LCD holder (20), a shield plate (50) covering the edge of the LCD (30), and an LCD cap (50) coupled to the upper surface of the shield plate (50).

[0007] An LCD driving terminal (12) to which the end of an FPC board (31) is connected is mounted on the rear side of the PCB board (10), and a grounding terminal (11) to which a shield plate (41) is contacted is mounted on the front side of the PCB board (10).

[0008] A first through hole (21) is formed in the LCD holder (20) through which an FPC substrate (31) passes, and a second through hole (22) is formed in the LCD holder (20) spaced apart from the first through hole (21) so that a shield plate (41) passes through the second through hole (22).

[0009] Therefore, static electricity transferred from the body due to the touch of the LCD cap (50) is absorbed by the shield plate (40), and the static electricity absorbed by the shield plate (40) is transferred to the ground terminal (11) through the shield plate (41), thereby removing the static electricity.

[0010] However, the problem with the conventional heater control button is that since a shield plate (41) is formed on the shield plate (40) to make contact with the ground terminal (11), when the length of the shield plate (41) is made long, the shield plate (40) cannot be combined to wrap around the edge of the LCD (30), and when the length of the shield plate (41) is made short, when the shield plate (40) is combined to wrap around the edge of the LCD (30), the shield plate (41) cannot make contact with the ground terminal (11).

[0011] In addition, since the first through hole (21) and the second through hole (22) through which the FPC board (31) and the shield plate (41) pass must be formed in the LCD holder (20), a problem has arisen in that the LCD holder (20) is not easy to manufacture. The problem to be solved

[0013] Accordingly, the present invention aims to provide an LCD anti-static device for an electrostatic vehicle heater control button configured to solve the above problems by forming a boss with a through hole in the central part on one side of an LCD holder mounted on a PCB board, and coupling an electrostatic induction spring that contracts and expands to the boss so as to pass through the central hole, thereby facilitating the connection between a ground terminal mounted on a PCB board and a shield plate coupled to the upper surface of the LCD holder using the electrostatic induction spring that expands and contracts. As a result, static electricity transferred from the body due to a user's touch of the LCD cap is absorbed by the shield plate and then transmitted to the electrostatic induction spring to remove static electricity through the ground terminal, thereby facilitating the design of the heater control button. Furthermore, since it is not necessary to form a shield plate that contacts the ground terminal to remove static electricity as in the conventional method, the manufacturing cost of the shield plate can be reduced, and since it is not necessary to form a through hole through which the shield plate passes in the LCD holder, the manufacturing of the LCD holder can be facilitated. means of solving the problem

[0015] The present invention for achieving the above objective is,

[0016] An LCD holder mounted on a PCB board equipped with a grounding terminal;

[0017] An FPC board is provided, the lower end of which is coupled to a PCB board, and an LCD is mounted on the upper surface of an LCD holder;

[0018] An LCD electrostatic discharge prevention device for a vehicle heater control button comprising a shield plate joined to surround the edge of the LCD,

[0019] A boss having a through hole in the central part is formed on one side of the LCD holder, and

[0020] The device is characterized by being configured such that an electrostatic induction spring, the lower end of which contacts a grounding terminal and the upper end of which contacts the inner upper surface of a shield plate, is coupled to a boss so as to pass through a through hole, so that when a user touches the LCD cap, static electricity transferred from the body is absorbed by the shield plate, transmitted to the electrostatic induction spring, and then removed through the grounding terminal. Effects of the invention

[0022] According to the present invention, a boss having a through hole in the central part is formed on one side of an LCD holder mounted on a PCB substrate, and by coupling a contracting and extending electrostatic induction spring to the boss so as to pass through the central hole, the effect of facilitating the connection between a ground terminal mounted on the PCB substrate and a shield plate coupled to the upper surface of the LCD holder using the contracting and extending electrostatic induction spring can be expected.

[0023] In addition, by connecting the grounding terminal and the shield plate with an expanding and contracting electrostatic induction spring, static electricity transferred from the body due to the user touching the LCD cap is absorbed by the shield plate and then transmitted to the electrostatic induction spring, allowing for the removal of static electricity through the grounding terminal.

[0024] Furthermore, the effect of facilitating the design of the heater control button through the expansion and contraction of the electrostatic induction spring can be expected.

[0025] In addition, since it is not necessary to form a shield plate on the shield plate that contacts a ground terminal to remove static electricity as in the conventional method, the manufacturing cost of the shield plate can be reduced, and since it is not necessary to form a through hole through which the shield plate passes in the LCD holder, the effect of facilitating the manufacturing of the LCD holder can be expected. Brief explanation of the drawing

[0027] FIG. 1 is an exploded perspective view of an LCD anti-static device for a vehicle heater control button according to the present invention. FIG. 2 is a combined perspective view of the LCD anti-static device of the vehicle heater control button of the present invention. FIG. 3 is a combined cross-sectional view of the LCD anti-static device of the vehicle heater control button of the present invention. FIG. 4 is an exploded perspective view of an actual product of the LCD anti-static device for a vehicle heater control button according to the present invention. FIG. 5 is a drawing of an actual product in which the LCD and the electrostatic induction spring of the present invention are coupled to an LCD holder. FIG. 6 is an exploded perspective view illustrating an LCD anti-static device for a conventional vehicle heater control button. FIG. 7 is a combined perspective view illustrating an LCD anti-static device for a conventional vehicle heater control button. Specific details for implementing the invention

[0028] Hereinafter, a preferred embodiment of the present invention will be described using the attached FIGS. 1 to 5.

[0029] First, prior to the description of the present invention, the same reference numerals are used for components identical to those in the prior art, so the description of duplicate reference numerals will be omitted.

[0030] According to the drawings above, the present invention is,

[0031] An LCD holder (100) mounted on a PCB board (10) equipped with a grounding terminal (11);

[0032] An FPC board (Flexible Printed Circuit Board: 31) is provided, the lower end of which is combined with a PCB board (10), and an LCD (30) is mounted on the upper surface of an LCD holder (20);

[0033] An LCD anti-static device for a vehicle heater control button comprising a shield plate (120) that is coupled to surround the edge of the LCD (30),

[0034] A boss (110) having a through hole (111) in the central part is formed on one side of the LCD holder (100), and

[0035] The electrostatic induction spring (130), the lower end of which contacts the grounding terminal (11) and the upper end of which contacts the inner upper surface of the shield plate (120), is coupled to the boss (110) so as to pass through the through hole (111), so that when the user touches the LCD cap (50), the electrostatic charge transferred from the body is absorbed by the shield plate (120), then transferred to the electrostatic induction spring (130) and removed through the grounding terminal (11).

[0037] FIG. 1 is an exploded perspective view of the LCD anti-static device for a vehicle heater control button of the present invention, FIG. 2 is an assembled perspective view of the LCD anti-static device for a vehicle heater control button of the present invention, and FIG. 3 is a cross-sectional view of the LCD anti-static device for a vehicle heater control button of the present invention.

[0039] The present invention enables the removal of static electricity by connecting a ground terminal (11) mounted on a PCB board (10) and a shield plate (120) using an electrostatic induction spring (130) that extends and contracts.

[0040] The above electrostatic induction spring (130) is formed by creating a boss (110) with a through hole (111) on one side of the LCD holder (100) and connecting the electrostatic induction spring (130) to the boss (110) so as to pass through the through hole (111).

[0041] The above electrostatic induction spring (130) is made of SUS304 material.

[0042] By making the above electrostatic induction spring (130) out of SUS304 material, the manufactured electrostatic induction spring (130) not only has excellent corrosion resistance, heat resistance, and ease of processing, but also reduces manufacturing costs.

[0043] The lower and upper ends of the electrostatic induction spring (120) are connected to the ground terminal (11) mounted on the PCB board (10) and the shield plate (120), respectively, so that the shield plate (120) does not need to have a shield plate (41) formed as in the conventional method, and thus the manufacturing cost of the shield plate (120) can be reduced.

[0045] In this way, a boss (110) is formed on one side of the LCD holder (100), and by using an electrostatic induction spring (130) that passes through the through hole (111) of the boss (110) to connect the ground terminal (11) and the inner upper surface of the shield plate (120),

[0046] The ground terminal (11) and the shield plate (120) can always remain in contact due to the elastic force of the contracting and expanding electrostatic induction spring (130).

[0047] Therefore, when the user touches the LCD cap (50), static electricity from the body is absorbed into the shield plate (120), and the shield plate (120) that has absorbed the static electricity is transferred to the static electricity induction spring (130) so that the static electricity can be removed through the ground terminal (11). Explanation of the symbols

[0049] 10: PCB board, 11: Ground terminal, 12: LCD driver terminal, 20: LCD holder, 21: 1st through hole, 22: 2nd through hole, 30: LCD, 31: FPC board, 40: Shield Plate, 41: Shield Plate, 50: LCD cap, 100: LCD holder, 110: Boss, 111: Penetration hole, 120: Shield plate, 130: Electrostatic induction spring,

Claims

Claim 1 An LCD holder (100) mounted on a PCB board (10) equipped with a grounding terminal (11); an LCD (30) mounted on the upper surface of the LCD holder (20), having a Flexible Printed Circuit Board (FPC board: 31) with its lower end coupled to the PCB board (10); An LCD anti-static device for a vehicle heater control button comprising a shield plate (120) that is coupled to surround the edge of an LCD (30), wherein a boss (110) having a through hole (111) in the central part is formed on one side of an LCD holder (100), and an electrostatic induction spring (130) that is coupled to the boss (110) so as to pass through the through hole (111), with the lower end contacting a ground terminal (11) and the upper end contacting the inner upper surface of the shield plate (120), is configured such that when a user touches the LCD cap (50), the electrostatic charge transferred from the body is absorbed by the shield plate (120), then transmitted to the electrostatic induction spring (130) and removed through the ground terminal (11).

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