CN201622961U - Pressing structure of thin keyboard - Google Patents

Abstract

A press structure of thin keyboard is prepared as setting the first and second supports for lifting key cap between key cap and base plate, connecting said first and second supports to key cap and touch element between said first and second supports, setting said touch element to be a pressed section for pushing key cap, a touch section for touching touch element and a balance section between pressed section and touch section, setting said touch element to be an elastic section for generating deformation by said pressed section and triggering circuit board to send out command signal by a press stroke, generating touch fall by deformation of elastic section and providing a switch press hand feeling by said push element when said elastic section is recovered.

Description

Press structure of thin keyboard

technical field

The utility model relates to a pressing structure of a thin keyboard, in particular to a pressing structure which reduces the pressing stroke of a keycap to realize the thin design of the keyboard and can simultaneously produce an obvious pressing touch.

Background technique

In today's computer industry market, no matter it is a desktop computer or a notebook computer, thinness and lightness are the main sales demands. Especially for notebook computers, the proportion of the keyboard module to the total thickness is the most important factor affecting its overall volume. Therefore, various manufacturers are all committed to the design of the keyboard module mechanism to reduce the volume of the computer or its peripheral components.

The keyboard key structure of the prior art is as described in Chinese Taiwan Patent No. 440784, No. 369637, No. I229360, No. 534389 and No. 426187. The disclosed structures are all shown in Figure 1, mainly including: keycap 50. The circuit board 60 that is triggered by the keycap to generate a signal, the substrate 65 located below the circuit board 60, and the two ends are respectively connected to the linkage mechanism 70 of the keycap 50 and the substrate 65. The substrate 60 includes an upper The circuit board 61 and the lower circuit board 62, and a partition 63 is arranged between the upper circuit board 61 and the lower circuit board 62, and a circuit switch 64 is formed at the opening of the partition 63, and the linkage mechanism 70 includes an elastic Body 71, bridge 72. In this type of keyboard structure, the pressing trigger is to use the keycap 50 to press down, forcing the centrally located convex column inside the elastic body 71 to touch down the circuit switch 64 to make it conduct to generate corresponding control. Signal. It can be seen from FIG. 1 that in the pressing structure of this structure, a displacement stroke H is required for the elastic body 71 to trigger the bottom circuit switch. In order to provide the user with a more obvious tactile feeling and resilience during operation, the displacement stroke H is usually designed to be a larger distance. However, this structural design will inevitably increase the overall height of the keyboard module. Therefore, it is not necessary It is beneficial to be used in notebook computers or thin keyboards.

Another prior art keyboard button structure, as described in Chinese Taiwan Patent No. I306616, in the disclosed pressing structure, it only arranges a solid or hollow elastic material between the keycap and the circuit board, and utilizes its touch However, the problem caused by this design is also the same as the aforementioned pressing structure. If it is necessary to provide sufficient contact stroke or rebound force, it is also necessary to increase the thickness of the elastic material, and this type of The pressing structure abandons the bridging design, so the keycap itself is prone to inclination, and the downward triggering pressure provided by the keycap is also uneven, which is not conducive to the user's pressing.

In addition to the above-mentioned structure, Chinese Taiwan Patent No. 516058 discloses a structure of a thin keyboard, which is equipped with a return spring between the mandrel made of elastic material and the circuit switch, so as to provide the keycap itself with a large stroke, so it can produce obvious resilience, but because in this pressing structure, the columnar mandrel cannot effectively support the keycap above, and the mandrel is also used to support the keycap and the substrate, so it also has Keycaps are prone to tilting issues.

Utility model content

The main purpose of the present invention is to provide a pressing structure for a thin keyboard that firmly supports the keycaps and produces an obvious pressing touch with a low pressing stroke, so as to allow users to press conveniently and feel the feedback force.

In order to achieve the above purpose, the utility model provides a pressing structure of a thin keyboard, including: a keycap for the user to apply force to press, a circuit board triggered by the keycap to generate a command signal, and a substrate for carrying the keycap , and an activity space is formed between the keycap and the base plate, and it is characterized in that a linkage mechanism is provided in the activity space, and the linkage mechanism includes a first cross-connection for the keycap to be raised and lowered relative to the base plate. The bracket and the second bracket, the abutting piece connected to the keycap, and the actuating element arranged between the abutting piece and the substrate, the abutting piece includes a pressed section that pushes the keycap, resists the The contact pressure section of the touch element and the balance section arranged between the pressure receiving section and the pressure contact section, and the touch element includes a spring spaced from the circuit board by a pressing stroke at a position relative to the pressure contact section segment, the elastic segment has an unpressurized initial state, and is deformed by the pressure contact segment to trigger the circuit board to send a command signal through the pressing stroke, and the elastic segment returns to the initial state through the abutment A switch pressing feel is provided to the keycap feedback.

As can be seen from the above, the beneficial effects of the utility model compared with the prior art are:

1. When the user presses the keycap to deform the elastic section, and displaces the pressing stroke to trigger the circuit board, the deformation of the elastic section will make the user feel a significant difference in touch pressure.

2. When the user releases the keycap, the elastic section will return to the initial state, so that the user can feel the feedback force.

3. Through the protruding structure of the balance section and the first and second brackets, the keycap can be stably carried on the base plate, and when the user operates, the pressing force can be evenly transmitted to the elastic section for triggering.

Description of drawings

FIG. 1 is an exploded schematic diagram of a keyboard pressing structure in the prior art.

FIG. 2 is an exploded schematic view of the first embodiment of the pressing structure of the thin keyboard of the present invention.

Fig. 3 is a structural cross-sectional schematic diagram of the first embodiment of the pressing structure of the thin keyboard of the present invention.

FIG. 4 is a schematic cross-sectional view of the elastic section pressed by the pressing section in the first embodiment of the pressing structure of the thin keyboard of the present invention.

Fig. 5 is a structural cross-sectional schematic diagram of the second embodiment of the pressing structure of the thin keyboard of the present invention.

FIG. 6 is an exploded schematic view of the third embodiment of the pressing structure of the thin keyboard of the present invention.

FIG. 7 is a structural cross-sectional schematic view of a fourth embodiment of the pressing structure of the thin keyboard of the present invention.

Detailed ways

The detailed description and technical content of the pressing structure of the thin keyboard of the present invention are now described as follows in conjunction with the accompanying drawings:

Please refer to Fig. 2 and Fig. 3 first, they are respectively the structural exploded schematic view of the first embodiment of the pressing structure of the thin keyboard of the present invention and the structural sectional view of the first embodiment. The pressing structure of the thin keyboard of the present invention includes: for use The keycap 10 pressed by the user, the circuit board 20 triggered by the keycap 10 to generate command signals, and the substrate 25 for carrying the keycap 10, the circuit board 20 is composed of an upper circuit board 21 and a lower circuit board 22 A partition 23 is provided between the upper circuit board 21 and the lower circuit board 22 , and the upper circuit board 21 and the lower circuit board 22 form a circuit switch 24 conducting under pressure at the opening of the partition 23 . As shown in FIG. 3 , an active space 30 is formed between the keycap 10 and the base plate 25, and an interlocking mechanism 40 is arranged in the active space 30. The interlocking mechanism 40 includes: cross-connected for the keycap 10 to The first support 41 and the second support 42 for lifting and lowering the substrate 25 , the contact member 43 connected to the keycap 10 , and the touch element 44 disposed between the contact member 43 and the substrate 25 .

The abutting member 43 includes: a pressed section 431 that pushes against the keycap 10 , a pressed section 433 that resists the actuating element 44 , and a balance section 432 disposed between the pressed section 431 and the pressed section 433 . In the first embodiment of the present utility model, the keycap 10 is provided with an accommodating portion 11 at a position corresponding to the pressure end 431 of the abutment member 43, and the top end of the pressure end 431 can be processed or integrated. The inclined guide surface 435 whose outer diameter is smaller than the pressure receiving end 431 is shaped and formed, so that the abutting member 43 can be conveniently assembled to the accommodating portion 11 through the inclined guide surface 435, and positioned at a preset position of the keycap 10, or As shown in FIG. 5 of the second embodiment of the pressing structure of the thin keyboard of the present invention, the abutting member 43 can be directly connected to the keycap 10 with adhesive or other equivalent adhesive materials on the top surface of the pressure receiving end 431. fixed.

In the embodiment of the present utility model, the balance section 432 is a ring-shaped protruding structure. According to actual design requirements, it can also be a radial protruding structure. Therefore, except for the first bracket 41 and the second bracket 42, the balance The section 432 also serves to maintain the balance, so that the abutting member 43 firmly supports the keycap 10 for the user to continuously operate the keycap 10 for a long time to perform a pressing action without shifting or tilting. In addition, as shown in FIG. 3 , the balance leg 434 extends downward from the end of the balance section 432 . Therefore, when the abutting member 43 is subjected to a relatively large pressing force, the touch section 433 touches the touch element 44 , the balance leg 434 will contact the edge of the touch element 44, or as shown in Figure 6 of the third embodiment of the pressing structure of the thin keyboard of the present invention, the balance leg 434 extends downwards more than the first embodiment Therefore, once the contact section 433 touches the touch element 44, the balance leg 434 will contact the outer edge of the touch element 44, thereby providing an additional support effect; it is also possible to increase the balance section 432 according to actual design requirements. diameter, so that the balance leg 434 can touch the upper circuit board 21 when the keycap 10 is pressed.

Referring to FIG. 3 again, the touch element 44 has an elastic section 441 spaced from the circuit board 20 by a pressing stroke at a position corresponding to the contact pressure section 433, and the touch element 44 also includes an elastic section 441 extending outward from the elastic section 441. The supporting section 442 is used to make the touch element 44 abut against the upper circuit board 21 through the supporting section 442 . When the elastic section 441 is not pressed by the contact section 433, it is in an undeformed initial state. When the keycap 10 presses downward against the pressed section 431 of the abutment 43, the contact section 433 is pressed downward. When the elastic section 441 is pulled, the elastic section 441 will be deformed and move downwards to the pressing stroke, thereby triggering the circuit switch 24 and causing the circuit board 20 to send a command signal, as shown in Figure 4, which is the thin keyboard of the present invention. Schematic cross-sectional view of the structure of the pressing elastic section of the pressing section in the first embodiment of the pressing structure. When the elastic section 441 returns to the initial state, the elastic section 441 will provide feedback to the keycap 10 via the abutting member 43 to provide a switch pressing feel.

In the present utility model, the abutting member 43 can be selected from soft rubber or other polymer materials with equivalent elasticity, and can also be rigid plastic material or other materials with similar properties, while the touch element 44 is It can be selected as metal material, hard rubber or other materials with similar properties that can produce a large amount of elastic deformation and resilience. In the embodiment, metal shrapnel is preferably used as the actuating element 44, and the pressure required to deform the elastic section 441 will be significantly greater than the force required to deform the elastic body 71 in the prior art. Therefore, the user You will clearly feel the contact pressure drop generated by this elastic deformation moment.

For the assembly mode of the substrate 25 and the circuit board 20, one mode is shown in Fig. 2 of the first embodiment of the pressing structure of the utility model thin keyboard, the upper circuit board 21 and the lower circuit board 22 are arranged on the top of the substrate 25, and the other For one mode, please refer to FIG. 7 of the fourth embodiment of the pressing structure of the thin keyboard of the present invention. The upper circuit board 21 and the lower circuit board 22 are arranged below the base plate 25, and a bottom plate 26 is provided below the lower circuit board 22. , both of the above two modes are mature prior art, so the operation instructions of the components in the two modes will not be repeated here.

To sum up, the light guide structure of the luminous keyboard of the present invention mainly utilizes the design of the touch element. When the keycap is pressed, the elastic section will be deformed so that the user can feel the obvious drop of touch pressure, making the utility model Compared with the existing technology, the beneficial effect of the new type is:

1. When a metal shrapnel is used as the elastic section, the pressing stroke between the elastic section and the circuit board is shorter than the pressing stroke required by the keyboard pressing structure of the prior art, so the overall thickness of the keyboard can be greatly reduced, and While maintaining a certain pressing feel.

2. When the user releases the keycap and the elastic section returns to the initial state, the deformed elastic force will be used to generate a switch pressing feel, so that the user can feel an obvious feedback force.

3. The abutting piece is provided with a protruding balance section, which can provide a more stable support effect for the keycap, and the user can perform the pressing action more accurately. No matter where the keycap is pressed, the The pressure is evenly transmitted to the elastic section, which also prolongs the service life of the keyboard.

The utility model has been described in detail above, but the above description is only a preferred embodiment of the utility model, and cannot limit the scope of implementation of the utility model. That is, all equivalent changes and modifications made according to the application scope of the present utility model should still fall within the protection scope of the present utility model.

Claims (10)

1. the pressing structure of a slight keyboard, include: the keycap (10), the circuit board (20) that is subjected to described keycap (10) triggering for generating command signal and the substrate (25) that supply user's application of force to push in order to carry described keycap (10), and be formed with activity space (30) between described keycap (10) and the described substrate (25), it is characterized in that:

Be provided with interlinked mechanism (40) in the described activity space (30), described interlinked mechanism (40) comprising: interconnection is for first support (41) and second support (42) of described keycap (10) with respect to described substrate (25) lifting mutually, be connected in the fitting (43) of described keycap (10), and be located at shake-up element (44) between described fitting (43) and the described substrate (25), described fitting (43) comprising: the pressurized section (431) of pushing up the described keycap (10) of pulling, the conflict section of pressing (433) of described shake-up element (44), and be located at balancing segment (432) between described pressurized section (431) and the described section of pressing (433), and described shake-up element (44) comprises the stretch section (441) of pushing stroke with described circuit board (20) interval one in the position relative with the described section of pressing (433), described stretch section (441) has the initial condition of not exerting pressure, and be subjected to the described section of pressing (433) to press generation deformation, and then trigger described circuit board (20) and send command signal through the described stroke of pushing, and described stretch section (441) returns back to described initial condition, provides a switch press feel through described fitting (43) to described keycap (10) feedback.

2. according to the pressing structure of the described slight keyboard of claim 1, it is characterized in that described keycap (10) convexes with the holding part (11) that holds described pressurized section (431).

3. according to the pressing structure of the described slight keyboard of claim 1, it is characterized in that described pressurized section (431) top has the guiding incline (435) of external diameter less than described pressurized section (431).

4. according to the pressing structure of the described slight keyboard of claim 1, it is characterized in that described fitting (43) also comprises the balance leg (434) that extends from described balancing segment (432) towards described substrate (25) direction.

5. according to the pressing structure of the described slight keyboard of claim 1, it is characterized in that described shake-up element (44) also comprises from the outward extending supporting section of described stretch section (441) (442).

6. according to the pressing structure of the described slight keyboard of claim 1, it is characterized in that described balancing segment (432) is projective structure in the form of a ring.

7. according to the pressing structure of the described slight keyboard of claim 1, it is characterized in that described shake-up element (44) is a metal clips.

8. according to the pressing structure of the described slight keyboard of claim 1, it is characterized in that described circuit board (20) is arranged at described substrate (25) below.

9. the pressing structure of described slight keyboard according to Claim 8 is characterized in that, described circuit board (20) below is provided with the base plate (26) of the described circuit board of carrying (20).

10. according to the pressing structure of the described slight keyboard of claim 1, it is characterized in that described circuit board (20) is arranged at described substrate (25) top.

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