Button silica gel pad

Abstract

A key silica gel pad comprises a body. A key surface is arranged on the front face of the body, a key silica gel column is arranged on the back face of the body, the key silica gel column jacks up the key surface and forms a key side wall, and the key surface, the key silica gel column and the key side wall form a key structure. A circular ring is arranged on the surface of the key, and a pattern is arranged in the circular ring; and a gap is formed between the key silica gel column and the side wall of the key. According to the utility model, the problems of multi-color display optical crosstalk and non-uniform light of a plurality of high silica gel key block structures are solved; the compatible design effectively reduces the size, reduces the assembly complexity and reduces the cost. The key silica gel pad realizes key attributes and high protection sealing characteristics, and has the advantages of integrated design, few structural members, simple assembly, high reliability and low cost.

Description

Technical Field

[0001] The utility model relates to a key silica gel pad. Background Art

[0002] The truck mixer controller controls the feeding and discharging functions of the mixing tank through security inspection. Since the controller is installed on the body outside the vehicle, high requirements are placed on the button function and reliability: it is necessary to meet the basic attributes of comfortable button feel, have a uniform backlight display function, and achieve a high protection level (IP6X / X7 / X9K). In addition, the structural size requirements must also be considered in the design of the solution.

[0003] There are two main existing technical solutions. One is to set a silicone key block to meet the key function, and seal the periphery with glue, or make it into a sheet structure and compress and seal it; the other is not to set a silicone key block, and use a light-guiding key column to meet the key function, and the periphery is mainly sealed by bonding. Utility Model Content

[0004] The technical problem to be solved by the utility model is: to provide a new key silicone pad in view of the problems in the prior art such as large size, failure to achieve IP67 protection level, inability to perform multi-color backlight display, complex assembly process, non-integrated design, multiple structural parts to realize functions, and high cost.

[0005] The technical solution of the utility model is specifically as follows:

[0006] A key silicone pad comprises a body; a key surface is arranged on the front of the body, a key silicone column is arranged on the back of the body, the key silicone column lifts up the key surface and forms a key side wall, and the key surface, the key silicone column and the key side wall constitute a key structure;

[0007] A circular ring is arranged on the surface of the button, and a pattern is arranged inside the circular ring;

[0008] A gap is provided between the key silica gel column and the key side wall.

[0009] An annular H-shaped sealing ring is arranged around the body, and the H-shaped sealing ring forms a sealing structure with a high protection level through a pressing sheet and a shell.

[0010] The beneficial effects of the utility model are: the utility model cleverly integrates a similar connector sealing structure at the boundary to meet a high protection level; solves the problem of light crosstalk and uneven light in multi-color display of multiple high-silicone key block structures; the compatible design effectively reduces the size, reduces the complexity of assembly and reduces costs. The specific beneficial effects are:

[0011] 1. The keypad silicone pad of this utility model realizes keypad properties and high protection sealing characteristics, while taking into account integrated design, few structural parts, simple assembly, high reliability and low cost;

[0012] 2. The silicone key structure satisfies the comfortable feel of the keys and has a uniform backlight display function;

[0013] 3. High structural reliability and high protection level, up to IP6K9K;

[0014] 4. The product has high integration, small size, low weight and small space occupation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the back structure of the utility model;

[0017] Figure 3 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 4 is a structural diagram of the pattern;

[0019] Figure 5 It is a structural schematic diagram of an H-type sealing ring;

[0020] Figure 6 It is a structural diagram of the H-type sealing ring, the pressing piece and the housing. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a key silicone pad includes a body 20; a key surface 11 is arranged on the front of the body 20, and a key silicone column 12 is arranged on the back of the body 20. The key silicone column 12 lifts up the key surface 11 and forms a key side wall 13. The key surface 11, the key silicone column 12 and the key side wall 13 constitute a key structure 200. On one body 20, multiple key structures 200 can be arranged, and the number can be 1, 2, etc., or different combinations such as 2*3, 3*3, etc., and three key structures 200 are shown in the figure.

[0023] A ring 15 is provided on the button surface 11 , and a pattern 17 is inside the ring 15 .

[0024] A gap 14 is provided between the key silicone column 12 and the key side wall 13. The gap 14 can guide light and form an atmosphere effect with the ring 15. The key silicone column 12 has light guiding and light averaging effects.

[0025] Furthermore, the pattern 17 on the key surface 11 uses an opaque black topcoat and then laser engraving to set different logos or symbols.

[0026] Furthermore, an annular H-shaped sealing ring 16 is arranged around the body 20, and a seal with a high protection level (IPX6 / IPX7 / IPX9K) is formed through the pressing plate 301 and the shell 302. When multiple sets of key structures 200 are arranged, the convex ribs of the pressing plate 301 can prevent cross-lighting. It should be noted that the pressing plate 301 and the shell 302 here are not part of the key, but part of the external mixer truck controller, which cooperates with the key, such as Figure 5 , Figure 6 shown.

[0027] The working principle of the utility model is:

[0028] The key surface 11 is pressed, and force is applied to the key (not shown in the figure) on the circuit board through the key silicone column 12 to complete the key action.

[0029] Compared with the prior art, the utility model simplifies the gluing process and process steps, and at the same time, compared with the pressed sheet structure, the sealing level is high and the space occupied is smaller; the light-guiding key column structure is simplified and the number of parts is reduced; in addition, the sealing structure and the key structure are cleverly integrated together to reduce the size, simplify the assembly complexity, and achieve the purpose of reducing costs. The matching structure can simply and effectively solve the display cross-light problem.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that those skilled in the art can make several changes and improvements without departing from the overall concept of the present invention, and these should also be regarded as the protection scope of the present invention.

Claims

1. A key silicone pad, characterized in that: It comprises a body (20); a key surface (11) is arranged on the front of the body (20); a key silicone column (12) is arranged on the back of the body (20); the key silicone column (12) lifts up the key surface (11) and forms a key side wall (13); the key surface (11), the key silicone column (12) and the key side wall (13) constitute a key structure (200); A circular ring (15) is arranged on the key surface (11), and a pattern (17) is arranged inside the circular ring (15); A gap (14) is provided between the key silicone column (12) and the key side wall (13).

2. A keypad silicone pad according to claim 1, characterized in that: An annular H-shaped sealing ring (16) is arranged around the body (20).

Images