Waterproof scissor-foot keyboard resistant to high-low temperature, humidity and heat

Abstract

The utility model relates to a waterproof, high-low temperature resistant, moist heat resistant scissors foot keyboard, which comprises keycaps, an outer frame body and a bottom plate, the keycaps are installed on the upper surface of the outer frame body, the bottom plate is located below the outer frame body, a middle plate, a silica gel lining and an FPC circuit board are sequentially arranged between the outer frame body and the bottom plate, the middle plate is arranged on the upper surface of the silica gel lining in an attached mode, and the FPC circuit board is located below the middle plate. The lower surface of the silica gel lining wraps an FPC circuit board, a scissor foot key core is arranged between the key cap and the middle plate, a plurality of through holes are formed in the middle plate, a silica gel elastic body is arranged on the silica gel lining, and the top end of the silica gel elastic body sequentially penetrates through the through hole of the middle plate and an avoiding hole formed in the scissor foot key core to abut against the key cap. The keyboard provided by the utility model has excellent touch feeling and stability, has the performances of water resistance, explosion resistance, prying resistance, vibration resistance, high and low temperature resistance, damp heat resistance and the like, and can meet the requirements of various special environments.

Description

Technical Field

[0001] The utility model relates to the technical field of keyboards, and particularly relates to a scissor-switch keyboard with waterproof, high and low temperature resistance, and damp heat resistance. Background Art

[0002] With the rapid development of technology, the keyboard, as an important input tool for computers and intelligent devices, has continuously improved its performance and adaptability. The scissor-switch keyboard, with its unique X-shaped structure design, short key travel, and excellent touch feeling, has been widely used. However, due to the limitations of the structural design of the scissor-switch keyboard, the current scissor-switch keyboards cannot simultaneously possess the properties of waterproof, explosion-proof, anti-prying, anti-vibration, high and low temperature resistance, etc., and it is difficult to adapt to special environments.

[0003] Therefore, there is an urgent need to provide a scissor-switch keyboard with waterproof, high and low temperature resistance, and damp heat resistance to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies and defects of the prior art and provide a scissor-switch keyboard with waterproof, high and low temperature resistance, and damp heat resistance to meet the requirements of various complex environments.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] A scissor-switch keyboard with waterproof, high and low temperature resistance, and damp heat resistance, comprising a keycap, an outer frame body, and a bottom plate. The keycap is installed on the upper surface of the outer frame body, the bottom plate is located below the outer frame body, and a middle plate, a silica gel lining, and an FPC circuit board are sequentially arranged between the outer frame body and the bottom plate. The middle plate is attached to the upper surface of the silica gel lining, the lower surface of the silica gel lining wraps the FPC circuit board, a scissor-switch key core is arranged between the keycap and the middle plate, the middle plate is provided with a plurality of through holes, the silica gel lining is provided with silica gel elastic bodies, and the top ends of the silica gel elastic bodies sequentially pass through the through holes of the middle plate and the avoidance holes provided on the scissor-switch key core and abut against the keycap.

[0007] As a preferred technical solution of the utility model, a first fixing member is arranged on the inner surface of the keycap, a second fixing member is arranged on the upper surface of the middle plate, and both the first fixing member and the second fixing member are connected to the scissor-switch key core for connecting the keycap and the middle plate through the scissor-switch key core, thereby fixedly installing the keycap on the upper surface of the outer frame body.

[0008] As a preferred technical solution of the utility model, plastic columns are arranged on the outer frame body, one end of each plastic column is connected to the inner side of the outer frame body, and the other end is connected to the middle plate.

[0009] As a preferred technical solution of the utility model, the silica gel elastic bodies and the silica gel lining are integrally formed.

[0010] As a preferred technical solution of the present utility model, bumpers are provided on the inner surface of the keycap, and the bumpers are disposed opposite to the top ends of the silicone elastomers.

[0011] As a preferred technical solution of the present utility model, the middle plate and the bottom plate are made of stainless steel.

[0012] As a preferred technical solution of the present utility model, a plurality of mounting positions for fixing the keyboard are further provided on one side of the outer frame.

[0013] Compared with the prior art, the present utility model has the following beneficial effects:

[0014] By adopting a silicone lining to wrap the FPC circuit board, the present utility model protects the FPC circuit board from moisture, dust intrusion and external environment influence, and can achieve an IP67-level waterproof and dustproof effect; by closely fitting the FPC circuit board with the stainless steel bottom plate, the anti-deformation ability of the FPC circuit board is improved, so that the keyboard can still work normally when the temperature is below -40 °C, and has the characteristics of resistance to high and low temperatures and humidity; by combining the silicone lining with the scissor-foot key core, the keyboard has excellent touch and stability, and at the same time has the properties of waterproof, explosion-proof, anti-pry, anti-vibration, resistance to high and low temperatures and humidity, etc., and can meet the requirements of various special environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is an exploded view of the structure of the present utility model.

[0016] Figure 2 is a partial exploded view of the structure of the present utility model.

[0017] Figure 3 is an inner structure diagram of the keycap of the present utility model.

[0018] Figure 4 is Figure 1 a partial enlarged view of portion A in

[0019] Figure 5 is Figure 1 a partial enlarged view of portion B in

[0020] Among them, the above-mentioned drawings include the following reference numerals:

[0021] 1. Outer frame; 2. Bottom plate; 3. Keycap; 4. Middle plate; 5. Silicone lining; 6. FPC circuit board; 7. Scissor-foot key core; 8. Through hole; 9. Silicone elastomer; 10. First fixing member; 11. Second fixing member; 12. Plastic column; 13. Bumper; 14. Mounting position. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The present utility model will be further described in detail below in conjunction with embodiments and the accompanying drawings, but the implementation manners of the present utility model are not limited thereto.

[0023] The specific implementation process of the present utility model is as follows:

[0024] As Figure 1 shown, a scissor keyboard with waterproof, high and low temperature resistance, and humidity resistance includes a keycap 3, an outer frame 1, and a bottom plate 2. The keycap 3 is installed on the upper surface of the outer frame 1, the bottom plate 2 is located below the outer frame 1, and a middle plate 4, a silicone inner lining 5, and an FPC circuit board 6 are sequentially arranged between the outer frame 1 and the bottom plate 2. A first fixing member 10 is provided on the inner surface of the keycap 3, and a second fixing member 11 is provided on the upper surface of the middle plate 4. Both the first fixing member 10 and the second fixing member 11 are connected to the scissor key core 7. The keycap 3 and the middle plate 4 are connected through the scissor key core 7, thereby fixedly installing the keycap 3 on the upper surface of the outer frame 1, effectively preventing the keycap 3 from being pried, and enabling the keyboard to be anti-prying, anti-vibration, and explosion-proof. Plastic columns 12 are provided on the outer frame 1. One end of the plastic column 12 is connected to the inner side of the outer frame 1, and the other end is connected to the middle plate 4. The outer frame 1 and the middle plate 4 are fixed together by hot-melting the plastic columns. The silicone inner lining 5 is integrally formed, and the outer peripheral structure of the silicone inner lining 5 is adapted to the outer frame 1 and is sleeved inside the outer frame 1. The upper surface of the silicone inner lining 5 is adhesively connected to the middle plate through a silicone adhesive. The lower surface of the silicone inner lining 5 wraps the FPC circuit board 6, and the silicone inner lining 5 is adhered to the FPC circuit board 6 through a silicone adhesive, thereby fixedly connecting the keycap 3, the outer frame 1, the middle plate 4, the silicone inner lining 5, and the FPC circuit board 6 in sequence. The middle plate 4 is made of stainless steel, and the outer frame 1 is made of ABS material, which has excellent mechanical properties, heat resistance, low temperature resistance, chemical resistance, and electrical properties, enabling the keyboard to adapt to special environments. The material of the silicone inner lining 5 is silicone gel, which has excellent elasticity, high and low temperature resistance, and good insulation performance, and can protect the FPC circuit board 6 from moisture, dust intrusion, and the influence of the external environment. The silicone inner lining 5 made of this material is applied to the keyboard, enabling the keyboard to have characteristics such as non-key jamming, fast input, high and low temperature resistance, and humidity resistance, and can achieve an IP67-level waterproof and dustproof effect.

[0025] The present utility model replaces the conductive film used in traditional scissor keyboards with an FPC circuit board 6, and combines with the bottom plate 2 made of stainless steel to solve the problem that the FPC circuit board 6 is prone to deformation and short circuit under extreme temperature conditions in traditional scissor keyboards. Specifically, the bottom plate 2 made of stainless steel is adhered to the lower side of the FPC circuit board 6 through a waterproof hot melt adhesive, so that the FPC circuit board 6 and the bottom plate 2 are closely combined. The bottom plate 2 made of stainless steel resists the deformation caused by external forces and temperature changes, thereby improving the anti-deformation ability of the FPC circuit board 6 and extending the service life of the keyboard.

[0026] Reference Figures 1 to 5, a scissor foot key core 7 is provided between the keycap 3 and the middle plate 4. A plurality of through holes 8 are provided on the middle plate 4. A silicone elastomer 9 is provided on the silicone inner lining 5. The top end of the silicone elastomer 9 sequentially passes through the middle plate 4 and the avoidance holes provided on the scissor foot key core 7 and abuts against the keycap 3. Through the cooperation of the scissor foot key core 7 and the silicone elastomer 9, the tactile effect of the keyboard keys is better. Both the keycap 3 and the scissor foot key core 7 are made of PC material, which has the characteristics of high strength, high heat resistance, weather resistance, impact resistance, etc., further extending the service life of the keyboard.

[0027] In the embodiment of the present utility model, the silicone elastomer 9 and the silicone inner lining 5 are integrally formed, further enhancing the waterproof and dustproof effects of the keyboard and being easy to process and form.

[0028] In the embodiment of the present utility model, a convex block 13 is provided on the inner surface of the keycap 3. The convex block 13 is arranged opposite to the top end of the silicone elastomer 9. When the keycap 3 is pressed, the setting of the convex block 13 can accurately press the silicone elastomer 9, thereby triggering the FPC circuit board 6 and improving the keyboard response speed.

[0029] In the embodiment of the present utility model, a mounting position 14 for fixing the keyboard is further provided on one side of the outer frame body. The keyboard is fixed on the panel through the mounting position 14 to prevent the keyboard from sliding when the electronic device moves and operates. The fixing methods include but are not limited to bolt connection, snap connection, adhesive connection, etc.

[0030] In summary, the keyboard of the present utility model has the properties of wear resistance, tear resistance, anti-interference, chemical corrosion resistance, gas and liquid intrusion resistance, etc., and can also work normally in special environments such as up to 95% humidity, up to 65 degrees temperature, mildew, oil stain industrial environment, chemical corrosion, etc.

[0031] The above embodiments only represent the implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model should be subject to the appended claims.

Claims

1. A scissor keyboard that is waterproof, resistant to high and low temperatures, and humid heat, characterized in that It includes a keycap, an outer frame body and a bottom plate. The keycap is installed on the upper surface of the outer frame body. The bottom plate is located below the outer frame body. A middle plate, a silicone inner lining and an FPC circuit board are sequentially arranged between the outer frame body and the bottom plate. The middle plate is attached to the upper surface of the silicone inner lining. The lower surface of the silicone inner lining wraps the FPC circuit board. A scissor key core is arranged between the keycap and the middle plate. The middle plate is provided with a plurality of through holes. The silicone inner lining is provided with silicone elastic bodies. The top ends of the silicone elastic bodies sequentially pass through the through holes of the middle plate and the avoidance holes provided on the scissor key core and abut against the keycap.

2. The scissor keyboard with waterproof, high and low temperature resistance, and humidity resistance according to claim 1, characterized in that A first fixing member is provided on the inner surface of the keycap. A second fixing member is provided on the upper surface of the middle plate. Both the first fixing member and the second fixing member are connected to the scissor key core and are used to connect the keycap and the middle plate through the scissor key core, thereby fixedly installing the keycap on the upper surface of the outer frame body.

3. A scissor keyboard that is waterproof, resistant to high and low temperatures, and humid heat, as described in claim 1, wherein Plastic columns are provided on the outer frame body. One end of each plastic column is connected to the inner side of the outer frame body, and the other end is connected to the middle plate.

4. A scissor keyboard with waterproof, high and low temperature resistance and humidity resistance according to claim 1, characterized in that, The silicone elastic body is integrally formed with the silicone inner lining.

5. A scissor keyboard that is waterproof, resistant to high and low temperatures, and humid, as described in claim 1, wherein, A convex block is provided on the inner side surface of the keycap. The convex block is oppositely arranged with the top end of the silicone elastic body.

6. The scissors keyboard with waterproof, high and low temperature resistance and humidity resistance according to claim 1, characterized in that, The middle plate and the bottom plate are made of stainless steel.

7. A scissor keyboard with waterproof, high and low temperature resistance, and humidity resistance according to claim 1, wherein A plurality of installation positions for fixing the keyboard are further provided on one side of the outer frame body.

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