TWI597749B - Key structure assembly - Google Patents

Description

Button structure assembly

The invention relates to a button structure assembly, in particular to a structural improvement design for achieving a waterproof and dustproof function of a button, which can be achieved through a waterproof gasket and a silicone gasket formed between the surface sheet metal and the back cover gold. The comprehensive waterproof and dustproof effect, at the same time, the combination is simpler and can reduce the cost of production, so as to give excellent industrial use value.

Press, general processing machinery or automatic control equipment, often use the button for data input and related value setting, and in order to avoid water stains, perspiration and dust entering its internal circuit board, resulting in button sensitivity deterioration or failure, so the design of the button On the other hand, the film type button may be used, but therefore, the film type button often has a problem of breakage under repeated contact friction, and its practicality and durability are obviously inferior to mechanical buttons.

However, the conventional mechanical button is made of a single unit on a preset substrate. In order to obtain the flexibility of the button press, there is usually a slight clearance on the button and the substrate to avoid the button being frictionally stuck. Then, the existence of these clearances is providing a path for water and dust intrusion, which also leads to a problem of high mechanical button failure rate, which is especially waterproof for the button. The dustproof function has been designed in many related ways.

Looking at the waterproof and dustproof structure of the existing buttons, it is usually directly integrated into the interior of the button unit to achieve the expected waterproof and dustproof performance. However, in order to obtain the waterproof and dustproof function of the button, the button structure is often complicated. Although it can achieve the expected function, but due to the complexity of the structure and increase the difficulty of the combination, the relative cost of the overall group is relatively increased, which is not conducive to the value of industrial use, so that it is better to achieve the waterproof and dustproof function of the button. The reduction of the overall group cost is the subject of the research and development of the present invention.

In view of the design of the waterproof and dustproof function of the conventional button, it must be achieved through a complicated structure, resulting in a high overall production cost, which relatively affects the economic benefits of the industry. Based on this, the inventor specially works on R&D and design, based on It has been engaged in many years of experience and technology in related industries, and has further developed the key structure of the present invention.

In order to achieve the waterproof and dustproof performance of the button, and at the same time, the reduction in the production cost can be achieved. The structure design of the button in the present invention is combined with a back cover gold at the bottom of the surface of the button assembly, and between the two. A waterproof gasket and a silicone gasket are interposed to obtain a comprehensive separation relationship between the button and the key body disposed on the circuit board, so that it can be better waterproof and dustproof without affecting the function of the button pressure control function. The effect, at the same time, can be used to achieve the cost reduction of the production.

The button structure assembly of the invention achieves the expected waterproof and dustproof performance of the comprehensive division of the circuit board key body through the whole piece of the rubber gasket and the waterproof gasket without affecting the manipulation performance of the button, The whole piece is separated from the waterproof design of the conventional button, so the structure can be greatly simplified, and the assembly can be made easier, thereby reducing the overall cost of production and giving better industrial utilization. Value.

10‧‧‧ boards

11‧‧‧Key body

111‧‧‧Lights

12‧‧‧Board hole

20‧‧‧Back cover gold

21‧‧‧Bump

22‧‧‧ screw holes

23‧‧‧ shallow groove

24‧‧‧ slots

25‧‧‧ frame side

30‧‧‧矽 Rubber gasket

40‧‧‧Waterproof gasket

41‧‧‧Waterproof gasket bolt hole

50‧‧‧Surface sheet metal

51‧‧‧Set holes

52‧‧‧Surface plate gold bolt hole

53‧‧‧Bump

60‧‧‧Key base

61‧‧‧Perforation

62‧‧‧Light guide

63‧‧‧Combination

64‧‧‧Explosive panels

65‧‧‧hook

66‧‧‧ Groove

67‧‧‧Limited ribs

70‧‧‧ button

71‧‧‧Cylinder

72‧‧‧ slotting

73‧‧‧Ink edge

74‧‧‧ key face

75‧‧‧ Missing slot

76‧‧‧ Limit slot

80‧‧‧ tools

1 is a schematic exploded view of a preferred embodiment of the present invention.

2 is a schematic exploded plan view of a preferred embodiment of the present invention.

3 is a schematic diagram showing the structure of a preferred embodiment of the present invention.

4 is a schematic exploded view showing the structure of a surface plate gold, a button, and a button base according to a preferred embodiment of the present invention.

4A is a schematic exploded view showing the structure of a button and a button base according to a preferred embodiment of the present invention.

4B is a schematic exploded cross-sectional view showing the structure of a button and a button base according to a preferred embodiment of the present invention.

FIG. 5 is a schematic structural view (1) of the preferred embodiment of the present invention when the button is removed and removed.

Fig. 5A is a partial enlarged view of a portion A of Fig. 5.

Figure 6 is a schematic view showing the structure of the preferred embodiment of the present invention when the button is removed and removed (2).

Figure 6A is a partial enlarged view of a portion B of Figure 6.

FIG. 7 is a schematic structural view (1) of the preferred embodiment of the present invention when the button base is removed and removed.

Fig. 7A is a partial enlarged view of a portion C of Fig. 7.

Figure 8 is a schematic view showing the structure of the preferred embodiment of the present invention when the button base is removed and removed (2).

Figure 8A is a partial enlarged view of a portion D of Figure 8.

FIG. 9 is a schematic structural view of a push button body pressed under a button according to a preferred embodiment of the present invention.

Figure 9A is a partial enlarged view of a portion E of Figure 9.

With regard to the structural composition, technical means and efficacy of the present invention, it will be further described in detail with reference to the drawings: Referring to FIG. 1 to FIG. 9A, a preferred embodiment of the present invention will be described. As shown, the button structure assembly of the present invention mainly includes: a circuit board 10, a back cover gold 20, a silicone gasket 30, a waterproof gasket 40, a surface plate gold 50, and a plurality of button bases 60 and buttons 70. Composition.

The circuit board 10 has a button line (not shown) on its surface, and a predetermined number of key bodies 11 are arranged on the top surface thereof, and each of the key bodies 11 includes an illuminant 111 (generally an LED). Further, a plurality of circuit board bolt holes 12 are pre-positioned at a predetermined position of the circuit board 10, and the bolts (not shown) are inserted and locked; The back cover gold 20 has a diameter corresponding to the circuit board 10, and a plurality of protrusions 21 are disposed at the bottom thereof to avoid comprehensive contact when the back cover gold 20 is applied to the circuit board 10, and the back cover is The sheet metal 10 is provided with a screw hole 22 corresponding to the bolt hole 12 of the circuit board, and the bolt is used to fix the two bolts, and a top surface of the back cover gold 20 is recessed to cover all the keys of the circuit board 10. a shallow groove 23 of the shallow groove 23, a frame edge 25 is formed on the periphery of the shallow groove 23, and a corresponding hole groove 24 is respectively disposed at a position of the shallow groove 23 with respect to each of the key bodies 11 of the circuit board 10, so that the key body 11 can be matched. The silicone gasket 30 is disposed in a size corresponding to the shallow groove 22 of the back cover gold 20, and the silicone gasket 30 is filled and attached to the shallow groove 23 of the back cover gold 20. The inner surface of the hole is formed by covering the hole 24; the waterproof gasket 40 is a frame-shaped piece made of waterproof material, and the outer diameter thereof is consistent with the surface plate 50, and the inner diameter is slightly smaller than the back surface. a shallow groove 23 of the cover gold 20, and a plurality of waterproof gasket bolt holes 41 are disposed thereon, and the waterproof gasket 40 is sandwiched between the back cover gold 20 and the surface plate 50; The surface sheet 50 is provided with a plurality of array holes 51, and the number and position of the group of holes 51 are corresponding to the key body 11 of the circuit board 10, and the set holes 51 are used for the alternative. The button base 60 is assembled, and a plurality of surface plate metal bolt holes 52 are pre-positioned at a predetermined position of the surface plate 50, and the surface plate gold hole 52 of the surface plate 50 and the waterproof gasket 40 is inserted by bolts (not shown). The waterproof gasket bolt hole 41 is locked on the device or the device, and a plurality of protrusions 53 are formed on the bottom of the surface plate gold 50 to make the surface When the sheet metal 50 is disposed on the back cover gold 20, the proper spacing is maintained and the positioning effect is formed on the silicone gasket 30; and the plurality of button bases 60 and the buttons 70 are corresponding to the key body 11 of the circuit board 10 Correspondingly, the position of the light body 111 corresponding to the key body 11 on the side of each button base 60 includes a light guide column 62. The light guide column 62 can be integrally formed and formed by the button base 60, and can also be combined and assembled. When the illuminant 111 emits light, the light can penetrate through the squeegee pad 30 and be guided outwardly by the light guide bar 62, so that the function of the button body 11 being pressed can be recognized, and the top surface of each button base 60 is provided. The recess 66 of the button 70 is matched with a through hole 61 at the center of the groove 66, and the button 70 for the other is assembled. When the button 70 is pressed, the lower end of the center cylinder 71 can pass through the silicone gasket 30. The key body 11 of the circuit board 10 is pressed; accordingly, the button structure assembly of the present invention is formed by the upper member assembly, and the adhesive tape 30 attached thereto is filled in the shallow groove 23 of the back cover gold 20 Cooperating with the waterproof gasket 40, the circuit board 10 and the key body 11 thereon are formed into a comprehensive The effect of the occlusion barrier is, and because the silicone gasket 30 itself has excellent ductility and elastic recovery performance, it does not affect the performance of the button 70 through the silicone gasket 30 to touch the 键 control key body 11, such that In addition, it will have an excellent waterproof and dustproof effect, which can effectively prevent water, sweat or dust from invading the circuit board 10, so as to reduce the probability of short circuit or damage of the circuit board 10, and maintain its overall function. Operator; and in achieving the aforementioned waterproof and dustproof performance, the present invention is The entire type of silicone gasket 30 forms a comprehensive covering and isolation on the circuit board 10 and the key body 11, and is matched with the waterproof gasket 40 so that the function of the button 70 can be controlled without affecting the button 70. The principle of obtaining better waterproof and dustproof effect, and effectively simplifying the overall structure, making it easier to assemble, and relatively reducing the cost of production, which is more complicated than the conventional button. In terms of the waterproof and dustproof structure of the body, the invention has more economic benefits and practical value in industrial utilization; and further, as shown in FIG. 4 to FIG. 7, the surface plate gold 50, the button base 60 and the button 70 of the present invention are illustrated. In the group relationship, the button base 60 and the button 70 are made of plastic. As shown in the figure, the button base 60 is provided with a joint portion 63 corresponding to the surface plate 50 assembly hole 51, on both sides of the joint portion 63. A tool insert 80 for inserting a ram is provided, and a lower edge of the elastic insert 64 is formed into a hook 65. The hook 65 has an elastic compression deformation margin, and the surface plate 50 is obtained. The set hole 51 obtains a stable embedded relationship, and the top surface of the button base 60 is concave. A recess 66 is provided for the key surface 74 of the button 70. A through hole 61 is formed in the center of the recess 66 for the central cylinder 71 protruding from the lower portion of the button 70 to pass through. The central cylinder 71 is a hollow column. And a slot 72 is provided to provide a compression margin, and the barb-shaped snap-in edge 73 at the lower end of the center cylinder 71 is hooked to the lower edge of the center hole 61 of the button base 60 to maintain the combination of the button 70 and the button base 60. The indentation edge 73 of the lower end of the central cylinder 71 of the button 70 also has an elastic compression deformation margin; and the bottom edge of the key surface 74 of the button 70 is set to be available. A tool 80 such as a screwdriver is inserted into the notch 75 of the yoke so that a gap is formed between the key surface 74 and the recess 66 of the button base 60, and the tool 80 is inserted into the key surface 74 of the button 70 from the clearance when necessary. The slot 75 is not provided, and the button 70 is biased upwardly. At this time, the engaging edge 73 of the lower edge of the central cylinder 71 will be inwardly deformed and disengaged due to its material characteristics and the compression margin provided by the slot 72. The lower edge of the central through hole 61 of the button base 60 is used to facilitate the removal of the button 70, and the replacement of the button 70 is required. Similarly, the elastic inlay 64 of the tool 80 from the joint portion 63 of the button base 60 can also be used. Inserting one of the tools allows the tool 80 to be pressed against the hook 62 of the lower edge of the button insert 60 of the button base 60 to be deformed to be disengaged from the set hole 51 of the surface sheet 50, thereby allowing the button base 60 to be self-surfaced. The set hole 51 is pulled out to facilitate the replacement of the button base 60. In other words, all the button bases 60 and 70 of the button assembly of the present invention can be replaced as needed, and in the aforementioned button base 60. The inner side wall of the groove 66 of the top surface is provided with a pair of limiting ribs 67 for engaging the button 70. The side edge of the surface 74 corresponds to the limiting groove 76, which can form a limit and guide action when the button 70 is pressed, so that the button 70 can be stably pressed down and lifted by the reset of the key body 11 while avoiding Because the pressing force is too large, the central cylinder 72 of the button 70 injures the key body 11 and the circuit board 10; summarizing the above description, the button structure assembly of the present invention passes through the waterproof pad made of the surface plate gold and the back cover gold. The sheet and the gold-filled groove in the back cover are filled with the adhesive and the silicone gasket, and the special board can be assembled on the circuit board. The key body forms a comprehensive covering and isolation, so as to achieve better waterproof and dustproof effect, and at the same time, the combination is simpler and can reduce the production cost, which can really give excellent industrial utilization value. Overall, it is true. An excellent and outstanding innovative design, 提出 filed a patent application according to law.

10‧‧‧ boards

11‧‧‧Key body

12‧‧‧Board hole

20‧‧‧Back cover gold

22‧‧‧ screw holes

23‧‧‧ shallow groove

24‧‧‧ slots

25‧‧‧ frame side

30‧‧‧矽 Rubber gasket

40‧‧‧Waterproof gasket

41‧‧‧Waterproof gasket bolt hole

50‧‧‧Surface sheet metal

51‧‧‧Set holes

52‧‧‧Surface plate gold bolt hole

60‧‧‧Key base

61‧‧‧Perforation

70‧‧‧ button

71‧‧‧Cylinder

Claims (7)

A button structure assembly, comprising: a circuit board having a surface planned with a button line and a predetermined number of key bodies; a back cover gold having a size corresponding to the circuit board, and a top of the back cover gold The recess is provided with a shallow groove sufficient to cover all the keys of the circuit board, and corresponding holes are respectively arranged at positions of the shallow grooves relative to the respective keys of the circuit board; a rubber gasket, the size of which is substantially opposite to the back cover gold The shallow groove is matched, and the silicone gasket is filled in the shallow groove of the back cover gold, and is covered with the groove to form a cover isolation; a waterproof gasket is made of waterproof material The frame type sheet is sandwiched between the back cover gold and the surface plate gold; a surface plate gold is arranged on the upper layer with a plurality of holes, and the number and position of the set holes are the keys of the aforementioned circuit board The body is in a corresponding relationship, and the set of holes is used for the separate button base assembly; and the plurality of button bases and buttons, the number and the set position are corresponding to the key body of the circuit board, at the center of each button base Perforated, for optional button set, and press Is pressed, the center pillar of the key body is pressed board electric shock. The key structure assembly of claim 1, wherein the predetermined position of the circuit board is pre-positioned with a plurality of bolt holes, and the back cover gold is provided with a corresponding screw hole, which is provided by The bolts lock the two together. The key structure assembly of claim 1, wherein the outer diameter of the waterproof gasket is substantially in conformity with the surface sheet metal, and the inner diameter thereof is slightly smaller than the shallow groove of the back cover gold, so that the waterproof gasket group When it is placed between the surface plate gold and the back cover gold, it can be combined with the silicone gasket to obtain a comprehensive waterproof and dustproof function. The button structure assembly of claim 1, wherein the surface plate metal and the back cover gold bottom are respectively formed with a plurality of protrusions. The button structure assembly of claim 1, wherein the button base is provided with a joint corresponding to the surface plate metal hole, and is provided on both sides of the joint portion for inserting the tool The elastic insert is formed, and the lower edge of the elastic insert is formed into a hook shape, and the hole is formed with the surface plate gold to obtain a stable embedded relationship. The button structure assembly of claim 1, wherein the top surface of the button base is recessed with a groove for the key surface of the button, and a hole is formed at the center of the groove for the lower portion of the button. The center cylinder of the button is passed through, and the central column of the button has a hollow column shape and is provided with a slot to provide a compression margin, and a barb-shaped card edge buckle at the lower end of the center cylinder is hooked to the center hole of the button base. The lower edge is to maintain the setting relationship between the button and the button base, and the bottom edge of the button is set to be a slot for the tool to be inserted into the yoke, so that the key surface and the groove of the button base are A clearance is formed, and the tool is inserted into the notch of the key surface of the button from the clearance when needed, so as to facilitate the removal of the button. The key structure assembly of claim 1, wherein the circuit board includes an illuminant on one side of each key body.