WO2018059340A1

WO2018059340A1 - Button structure of electronic product

Info

Publication number: WO2018059340A1
Application number: PCT/CN2017/103071
Authority: WO
Inventors: 高建军
Original assignee: 深圳创维数字技术有限公司
Priority date: 2016-09-29
Filing date: 2017-09-25
Publication date: 2018-04-05
Also published as: CN206116247U

Abstract

A button structure of an electronic product, comprising an upper cover (1), a button (2), a printed circuit board (PCB) (3), a tap switch (4), and a light guide plate (5). The upper cover is provided with the button integrally formed with the upper cover. The button can move relative to the upper cover in the thickness direction of the upper cover. The thickness of the button is less than the thickness of the upper cover. A contact (21) is provided on the bottom surface of the button. The PCB is provided at a side of the bottom surface of the upper cover. The tap switch is provided on the PCB. The light guide plate is provided between the upper cover and the PCB; and the tap switch runs through the light guide plate to be abutted against the contact.

Description

Key structure of electronic products

Technical field

The present disclosure relates to the field of electronic product technology, for example, to a button structure of an electronic product.

Background technique

Electronic products in the related art, such as micro-game machines, are equipped with switch buttons to allow consumers to easily control the startup and shutdown of electronic products. The buttons in the related art can be realized by using a separate plastic button or a button sleeve, and the button and the upper cover are independent of each other, which increases the cost of opening the mold and affects the length of the light guide plate.

Further, the tact switch (i.e., the push button switch) in the related art is made of a black material, so that the electronic product produces a black shading when the original state or the lamp of the light guide plate is lit.

Summary of the invention

The button structure of the electronic product is provided, and the button structure of the button structure is integrally formed with the upper cover, which reduces the number of mold opening and reduces the production cost, and the tact switch passes through the light guide plate to abut the contact, thereby prolonging the service life of the button structure.

A button structure of an electronic product, comprising an upper cover, a button, a printed circuit board PCB, a tact switch, and a light guide plate, wherein the upper cover is provided with the button integrally formed with the upper cover, and the button can be The upper cover is moved in a thickness direction of the upper cover, the thickness of the button is smaller than the thickness of the upper cover, the bottom surface of the button is provided with a contact, and the bottom surface of the upper cover is provided with a PCB The tact switch is disposed on the PCB, the light guide plate is disposed between the upper cover and the PCB, and the tact switch is passed through the light guide plate against the contact.

Optionally, the first side of the button is connected to the upper cover, and a gap is formed between the second side of the button and the upper cover.

Optionally, a connecting portion of the button and the upper cover is provided with a curved first groove.

Optionally, the circumferential edge of the upper cover is provided with a protruding edge protruding in a direction of the light guide plate, and the convex edge is provided with a second groove at a connection between the button and the upper cover.

Optionally, the light guide plate is provided with a circular hole, and the touch switch penetrates the circular hole, and a difference between a radius of the circular hole and a radius of a portion of the tact switch that penetrates the circular hole It is 0.2 to 0.3 mm.

Optionally, the tact switch comprises a white transparent cylindrical moving rod, and the light guiding plate is a white transparent elongated strip.

Optionally, the button structure further includes a housing, and the upper cover and the housing form a cavity for accommodating the PCB and the light guide plate.

Optionally, the upper cover is engaged with the housing, the upper cover is provided with a plurality of first card slots, and the housing is provided with a plurality of first cards that are engaged with the first card slot. hook.

Optionally, the light guide plate is provided with a plurality of second card slots, and the housing is provided with a plurality of second hooks that are engaged with the second card slots.

Optionally, a top surface of the button is flush with a top surface of the upper cover.

The button in the above button structure is integrally formed with the upper cover, which reduces the number of mold opening and reduces the cost, and the tact switch passes through the light guide plate against the contact, thereby prolonging the service life of the button structure.

DRAWINGS

1 is a perspective exploded view of a button structure of an electronic product in an embodiment.

Fig. 2 is a front elevational view showing the key structure of an electronic product in an embodiment.

Figure 3 is a cross-sectional view taken along line AA of Figure 2;

Figure 4 is a partial enlarged view of a portion A in Figure 3.

Fig. 5 is a perspective view showing the structure of the upper cover in an embodiment.

Figure 6 is a partial enlarged view of A in Figure 5.

Fig. 7 is a perspective view showing the structure of a casing in an embodiment.

The reference numerals are as follows:

1-upper cover; 11-notch; 12-bump; 121-second groove; 13-first card slot; 2-button; 21-contact; 22-first groove; 3-PCB board; - tact switch; 5 - light guide; 51 - round hole; 52 - second card slot; 6 - housing; 61 - first hook; 62 - second hook.

detailed description

The technical solution will be described below with reference to FIGS. 1 to 7 and by way of specific embodiments.

As shown in FIG. 1 to FIG. 4, a button structure of an electronic product includes an upper cover 1, a button 2, a printed circuit board (PCB) 3, a tact switch 4, and a light guide plate 5, and the upper cover 1 is disposed. There is a button 2 integrally formed with the upper cover 1, and the button 2 is movable relative to the upper cover 1 in the thickness direction of the upper cover 1, and the thickness of the button 2 is smaller than the thickness of the upper cover 1.

Optionally, the top surface of the button 2 is flush with the top surface of the upper cover 1. The bottom surface of the button 2 is provided with a contact 21, and the bottom surface of the upper cover 1 is provided with a PCB 3. The PCB 3 is provided with a tact switch 4, and a light guide plate 5 is disposed between the upper cover 1 and the PCB 3, and the tact switch 4 is worn. The light guide plate 5 is pressed against the contact 21.

When the button 2 is pressed, the button 2 moves in a direction approaching the light guide plate 5, and the contact 21 triggers the tact switch 4. When the button 2 is released, the button 2 moves in a direction away from the light guide plate 5, and the button 2 returns to the initial state. In the button structure in this embodiment, the button 2 is integrally formed with the upper cover 1, which reduces the number of mold opening and reduces the production cost, and the tact switch 4 passes through the light guide plate 5 against the contact 21.

In an embodiment, as shown in FIG. 2 to FIG. 6 , the first side of the button 2 is connected to the upper cover 1 , and the notch 11 is disposed between the second side of the button 2 and the upper cover 1 .

In an embodiment, the first contact 22 of the curved shape is provided at the junction of the button 2 and the upper cover 1. Optionally, the circumferential edge of the upper cover 1 is provided with a convex edge 12 protruding in the direction of the light guide plate (5), and the convex edge 12 is provided with a second groove 121 at the connection of the button 2 and the upper cover 1. The arrangement of the notch 11, the first recess 22, and the second recess 121 allows the easy pressing of the button 2 to extend the service life of the button structure.

Optionally, as shown in FIG. 1 , the light guide plate 5 is provided with a circular hole 51 , and the tact switch 4 penetrates through the circular hole 51 , and the difference between the radius of the circular hole 51 and the radius of the portion of the tact switch 4 that penetrates the circular hole is 0.2 to 0.3 mm, so that the tact switch 4 can be smoothly installed and the shaking in the circular hole 51 can be avoided.

In one embodiment, the difference between the radius of the circular hole 51 and the radius of the portion of the tact switch 4 that penetrates the circular hole is 0.25 mm. The difference between the radius of the circular hole 51 and the radius of the portion of the tact switch 4 that penetrates the circular hole can be adjusted according to the length of the tact switch 4, for example, the radius of the circular hole 51 and the portion of the tact switch 4 that penetrates the circular hole. The difference between the radii may be 0.2 mm, 0.22 mm, 0.24 mm, 0.26 mm, 0.28 mm or 0.3 mm.

In one embodiment, the tact switch 4 includes a white transparent cylindrical moving rod, and the light guide plate 5 is white. The transparent strip shape is such that when the electronic product is in the original state or the lamp of the light guide plate 5 is lit, no black shadow is generated due to the color of the tact switch 4, so that the display of the long strip of light on the PCB 3 is caused. Beautiful.

In one embodiment, as shown in FIG. 1, the button structure further includes a housing 6, and the upper cover 1 and the housing 6 form a cavity for accommodating the PCB 3 and the light guide plate 5. The upper cover 1 is engaged with the housing 6 so that the upper cover 1 and the housing 6 are reliably connected.

Optionally, as shown in FIG. 6 and FIG. 7 , the upper cover 1 is provided with at least one first card slot 13 , and the housing 6 is provided with a plurality of first hooks 61 that are engaged with the first card slot 13 . In one embodiment, the number of the first card slot 13 and the first hook 61 is 11.

Optionally, as shown in FIG. 1 and FIG. 7 , the light guide plate 5 is provided with a plurality of second card slots 52 , and the housing 6 is provided with a plurality of second hooks 62 that are engaged with the second card slots 52 . The second card slot 52 and the second hook 62 are engaged, so that the light guide plate 5 is fixedly connected to the housing 6. In one embodiment, the number of the second card slot 52 and the second hook 62 is four.

Industrial applicability

The buttons in the button structure of the electronic product are integrally formed with the upper cover, which reduces the number of mold opening and reduces the production cost.

Claims

A button structure of an electronic product, comprising an upper cover (1), a button (2), a printed circuit board PCB (3), a tact switch (4), and a light guide plate (5), wherein the upper cover (1) Provided with the button (2) integrally formed with the upper cover (1), the button (2) is movable relative to the upper cover (1) in the thickness direction of the upper cover (1), The thickness of the button (2) is smaller than the thickness of the upper cover (1), the bottom surface of the button (2) is provided with a contact (21), and the bottom surface of the upper cover (1) is provided with a PCB (3). The touch switch (4) is disposed on the PCB (3), the light guide plate (5) is disposed between the upper cover (1) and the PCB (3), and the light The touch switch (4) passes through the light guide plate (5) against the contact (21).
The key structure according to claim 1, wherein a first side of the button (2) is connected to the upper cover (1), a second side of the button (2) and the upper cover (1) There is a gap (11) between them.
The key structure according to claim 2, wherein the connection of the button (2) and the upper cover (1) is provided with a curved first groove (22).
The key structure according to claim 2, wherein a circumferential edge of the upper cover (1) is provided with a convex edge (12) protruding in a direction of the light guide plate (5), and the convex edge (12) is located at A second groove (121) is disposed at a junction of the button (2) and the upper cover (1).
The button structure according to claim 1, wherein the light guide plate (5) is provided with a circular hole (51), and the tact switch (4) penetrates the circular hole (51), the circular hole (51) The difference between the radius and the radius of the portion of the tact switch (4) that penetrates the circular hole (51) is 0.2 to 0.3 mm.
The key structure according to claim 1, wherein said tact switch (4) comprises a white transparent cylindrical moving rod, and said light guiding plate (5) is in the form of a white transparent strip.
The key structure according to claim 1, further comprising a casing (6), the upper cover (1) and the casing (6) being formed to accommodate the PCB (3) and the light guide plate (5) The cavity.
The button structure according to claim 7, wherein the upper cover (1) is engaged with the housing (6), and the upper cover (1) is provided with a plurality of first card slots (13). The housing (6) is provided with a plurality of first hooks (61) that are engaged with the first card slots (13).
The button structure according to claim 7, wherein the light guide plate (5) is provided with a plurality of second card slots (52), and the housing (6) is provided with a plurality of the second card slots ( 52) The second hook of the card (62).
The key structure according to claim 1, wherein a top surface of the button (2) is flush with a top surface of the upper cover (1).