CN216118698U - Key core, keyboard and notebook computer - Google Patents

Abstract

The utility model discloses a key core, a keyboard and a notebook computer, comprising: the conductive film is connected to one side of the bottom plate; the key core further includes: the elastic support component is connected to one side of the conductive film, which is deviated from the direction of the bottom plate; and the keycap is connected to one side of the elastic support component, which deviates from the direction of the conductive film. The thickness of the key core in the existing keyboard is reduced, so that the keyboard is more portable.

Description

Key core, keyboard and notebook computer

Technical Field

The utility model relates to the technical field of electronics, in particular to a key core, a keyboard and a notebook computer.

Background

With the development of electronic technology, more and more products in the form of computers are available, such as: tablet, notebook computer, game machine, etc. when a large amount of characters are input, an external keyboard is needed.

Computer keyboard among the prior art usually has the wired keyboard of PS/2 interface, the wired keyboard of USB interface, the wireless flange of RFID and the wireless keyboard lamp of bluetooth several kinds, but no matter which kind of keyboard, its key structure adopts traditional scissors foot formula button mostly, however, the keyboard key cap thickness of this kind of button mode among the prior art is 0.6mm usually, and the stroke is pressed to the key cap is 1.0mm, and scissors foot thickness is 1.2mm, bottom plate thickness is 0.3mm for the thinnest 3.1mm of accomplishing of keyboard key core can only be accomplished, and then makes the whole thickness of keyboard can not fall because of scissors foot formula structure, carries inconveniently, can not satisfy the psychological demand that people pursue frivolousization, portablely gradually.

Accordingly, the prior art is yet to be improved and developed.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings of the prior art, the present invention provides a key core, a keyboard and a notebook computer, which aims to reduce the thickness of the key core in the prior keyboard.

The technical scheme of the utility model is as follows:

a key core comprising: the conductive film is connected to one side of the bottom plate; the key core further includes:

the elastic support component is connected to one side of the conductive film, which is deviated from the direction of the bottom plate;

and the keycap is connected to one side of the elastic support component, which deviates from the direction of the conductive film.

Further, one side of the keycap facing the elastic support component is provided with a first groove, and the elastic support component is connected to the first groove.

Further, a second groove is arranged in the first groove;

the elastic support assembly includes: the first plane part is arranged towards one side of the keycap direction;

the first planar portion is connected within the second recess.

Further, the first plane part is adhered to the second groove.

Further, the elastic support assembly comprises an inner support part connected to the first plane part, and a second plane is arranged on one side of the inner support part facing the conductive film and connected to the conductive film.

Further, the second plane is bonded to the conductive film.

Furthermore, the elastic support assembly further comprises an outer support part, the outer support part comprises a first elastic arm, one end of the first elastic arm is connected to the edge of the first plane part, and the other end of the first elastic arm is connected to the conductive film;

the inner side supporting part further comprises a second elastic arm, the second elastic arm is arranged at the bottom of the first plane part in a surrounding mode around a central shaft of the elastic supporting assembly, one end of the second elastic arm is connected to the first plane part, and the other end of the second elastic arm is connected to the second plane part.

Furthermore, a first round hole is formed in the first plane portion, a second round hole is formed in the second plane portion, and the first round hole, the second round hole and the elastic support assembly are coaxially arranged.

Furthermore, the elastic support component is made of silica gel.

A keyboard, comprising: a plurality of key cores as described above.

A notebook computer, comprising: such as the keyboard described above.

Compared with the prior art, the elastic support component is arranged on one side of the conductive film, the elastic support component extends towards the direction away from the bottom plate, the keycap is arranged on one side of the elastic support component, the keycap is connected to the elastic support component, the elastic support component is made of elastic materials, the elastic support component can be made to be thinner, and therefore the whole key core is thinner. The thickness of the key core in the existing keyboard is reduced, so that the keyboard is more portable.

Drawings

FIG. 1 is a schematic structural diagram of a key core, a keyboard and a notebook computer according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a key core, a keyboard and a notebook computer according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of an elastic supporting assembly of an embodiment of a key core, a keyboard and a notebook computer according to the present invention;

FIG. 4 is a schematic diagram of a key top structure of a key core, a keyboard and a notebook computer according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a key core, a keyboard and a keyboard structure of a notebook computer according to an embodiment of the present invention;

the reference numbers in the figures: 100. a base plate; 200. a conductive film; 300. an elastic support member; 310. a first planar portion; 320. a second plane; 330. a first resilient arm; 340. a second resilient arm; 350. a first circular hole; 360. a second circular hole; 370. an outer support portion; 380. an inner support portion; 400. a keycap; 410. a first groove; 420. a second groove; 430. a first cylindrical boss; 440. a second cylindrical boss; 450. a first boss.

Detailed Description

The utility model provides a key core, a keyboard and a notebook computer, and in order to make the purpose, technical scheme and effect of the utility model clearer and clearer, the utility model is further described in detail below by referring to the attached drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It should also be noted that the same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

With the development of electronic technology, more and more products in the form of computers are available, such as: tablet, notebook computer, game machine, etc. when a large amount of characters are input, an external keyboard is needed. Computer keyboard among the prior art usually has the wired keyboard of PS/2 interface, the wired keyboard of USB interface, RFID wireless flange and bluetooth wireless keyboard lamp are several kinds, but, no matter which kind of keyboard, its keying structure adopts traditional scissors foot formula button mostly, however, the keyboard key cap thickness of this kind of button mode among the prior art is 0.6mm usually, the key cap is pressed the stroke and is 1.0mm, scissors foot thickness is 1.2mm, bottom plate thickness is 0.3mm, make the keyboard key core can only accomplish 3.1mm thinnest, and then make the whole thickness of keyboard can not drop because scissors foot formula structure, it is inconvenient to carry, can not satisfy people gradually and pursue frivolousization, the psychological demand of portableization.

To solve the above problem, taking the key core as an example of being placed on a horizontal plane, taking a vertical upward direction as an upper direction, a vertical downward direction as a lower direction, and an upper surface of the key core as a top, taking a direction toward the center of the key core as an inner direction, taking a direction away from the center of the key core as an outer direction, and taking a central axis direction of the key core as a central axis direction. An embodiment of the present invention provides a key core, as shown in fig. 1, including: a base plate 100 and a conductive film 200, the conductive film 200 being attached to one side of the base plate 100, the key core further comprising: a resilient support member 300 and a key cap 400. The elastic support member 300 is connected to a side of the conductive film 200 facing away from the bottom plate 100, and the key cap 400 is connected to a side of the elastic support member 300 facing away from the conductive film 200. Specifically, the elastic support member 300 is made of an elastic material, and can be contracted when the key cap 400 is pressed, and when no pressure is applied to the key cap 400, the elastic support member 300 restores to its original shape, and supports the key cap 400 while maintaining its original shape. Through the arrangement, the key core of the traditional X-shaped scissors structure is improved into the key core with the elastic supporting component 300, when the keycap 400 is pressed, the elastic supporting component 300 is indirectly pressed, compared with the rigid key core of the traditional X-shaped scissors structure, the elastic supporting component 300 can be made thinner, and meanwhile, the elastic supporting component 300 of the embodiment of the utility model can be compressed for a longer stroke, so that the keyboard is more tactile when being pressed.

In the above solution, by disposing the elastic supporting member 300 on one side of the conductive film 200 and extending the elastic supporting member 300 in a direction away from the bottom plate 100, and disposing the key cap 400 on one side of the elastic supporting member 300 and connecting the key cap 400 to the elastic supporting member 300, the elastic supporting member 300 is made of an elastic material, so that the elastic supporting member 300 can be made thinner, and thus the whole key core can be made thinner. The thickness of the key core in the existing keyboard is reduced, so that the keyboard is more portable.

As shown in fig. 2, 3 and 4, in a specific embodiment of the present invention, a first groove 410 is disposed on a side of the key cap 400 facing the elastic support member 300, and the elastic support member 300 is connected to the first groove 410. Specifically, in order to make the key core thinner, a second groove 420 is disposed in the first groove 410, and the elastic support member 300 is connected to the second groove 420, so that the elastic support member 300 is more overlapped with the key cap 400, and the key core is ensured to be thinner. Specifically, still be provided with downwardly extending's first cylinder boss 430 on the key cap 400 center pin, first cylinder boss 430 connect in elastic support component 300 be provided with second cylinder boss 440 on the first cylinder boss 430, second cylinder boss 440 with first cylinder boss 430 centre of a circle is the same, can guarantee like this the focus of key cap is on the axis, just the diameter of first cylinder boss 430 is less than second cylinder boss 440, second cylinder boss 440 is electrically conductive base, is used for switch on the signal when the key cap 400 is pressed, once presses and can switch on the signal, makes key cap 400 accomplishes the input function.

In a specific embodiment of the present invention, the keycap 400 is provided with four first bosses 450 surrounding the edge of the first groove 410, the four first bosses 450 surround the first groove 410, and the first joints of the four first bosses 450 are connected in a rounded manner for the keycap 400 to be more beautiful. In addition, to facilitate keyboard strokes, the vertically upward face of the key cap 400 is arranged as a flat surface. It is easily conceivable that the plane may be provided with a pattern corresponding to the keyboard in order to distinguish a certain key of the keyboard. It is more easily conceivable that for the convenience of touch typing, blind spots may be provided at certain special keyboards for better recognition of the keyboard by the user. Specifically, the key cap 400 is an injection molded part, the injection molded part is integrally formed, the processing is easy, the injection molding is the most common manufacturing process for manufacturing plastic parts, various products are manufactured by using the injection molding, and the size, complexity and application of the products are greatly different. The injection molding process requires the use of an injection molding machine, raw plastic material and a mold. The plastic is melted in the injection molding machine and then injected into the mold where it cools and solidifies into the final part. The advantages of the injection molding part are: can form complicated shapes and details, has excellent surface finish, good dimensional precision, high productivity, low labor cost and recyclable waste.

As shown in fig. 2 and 3, in a specific embodiment of the present invention, the elastic support member 300 includes a first plane portion 310 disposed toward one side of the key cap 400, and the first plane portion 310 is coupled in the second groove 420 for coupling the elastic support member 300 inside the key cap 400. The key cap 400 is supported and balanced by the first plane part 310, and the first plane part 310 ensures the balance of the key. Specifically, the first plane portion 310 is adhered to the second groove 420, specifically, dispensing is performed through a dispensing process, so as to connect the keycap 400 and the elastic support assembly 300. It is easy to think that the way of connecting the first plane part 310 to the second groove 420 can also be welding, which can be realized by welding process. When the first plane part 310 is connected to the second groove 420 in a clamping manner, the second groove 420 is required to be arranged in the clamping groove matched with the first plane part 310.

As shown in fig. 2 and 3, in an embodiment of the utility model, the elastic support assembly 300 further includes an outer support portion 370, the outer support portion 370 includes a first elastic arm 330, one end of the first elastic arm 330 is disposed and connected to the edge of the first plane portion 310, and the other end of the first elastic arm 330 extends toward the conductive film 200 and is connected to the conductive film 200. The first elastic arm 330 is inclined towards the outside of the elastic supporting component 300, so that the elastic supporting component 300 can stably support the key cap 400 when the key core is not used, and meanwhile, the elastic supporting component 300 can be ensured to deform when the key core is pressed down, and the downward pressing stroke of the key cap 400 is ensured. First elastic arm 330 sets up to four, four first elastic arm 330 is followed first plane portion 310 is along border around the setting, four first elastic arm 330 passes through the arc surface and excessively connects.

As shown in fig. 2, 3 and 4, in an embodiment of the present invention, the flexible support member 300 includes an inner support portion 380, the inner support portion 380 is connected to the first plane portion 310, the inner support portion has a second plane 320 on a side facing the conductive film 200, and the second plane 320 is connected to the conductive film 200. The second plane 320 is used for the elastic support component 300 to contact with the conductive film 200, and stably supports the whole second plane 320, and the second plane 320 is configured to be circular, so that the second elastic arm 340 in the elastic support component 300 can be connected with it. Specifically, the second plane 320 is adhered to the conductive film 200 by dispensing, and is used for adhering the elastic support assembly 300 and the conductive film 200. It is easy to think that the way of connecting the second plane 320 to the conductive film 200 can also be welding, and can be realized by a welding process.

In a specific embodiment of the present invention, the inner support portion 380 further includes: a second elastic arm 340, the second elastic arm 340 being disposed at the bottom of the first plane portion 310 around the central axis of the elastic support assembly 300, one end of the second elastic arm 340 being connected to the first plane portion 310, and the other end thereof being connected to the second plane portion 320. The second elastic arm 340 is in a truncated cone shape with a wide top and a narrow bottom, and one end of the second elastic arm 340 is connected to the middle of the first plane part 310, and the other end is connected to the outer edge of the second plane part 320 in a surrounding manner. Thus, the second elastic arm 340 deforms between the first plane 310 and the second plane 320 when the key cap 400 is pressed down, and returns to its original shape between the first plane 310 and the second plane 320 when the key cap 400 is decompressed, so that the key cap 400 is restored to its original height.

As shown in fig. 2 and 3, in an embodiment of the present invention, a first circular hole 350 is further disposed on the first plane portion 310, a second circular hole 360 is disposed on the second plane portion 320, and the first circular hole 350 and the second circular hole 360 are disposed coaxially with the elastic support assembly 300. The first circular hole 350 is disposed at the center of the first plane portion 310, and similarly, the second circular hole 360 is disposed at the center of the second plane portion 320, and the first circular hole 350 and the second circular hole 360 are concentric circles, so that the balance of the front, back, left and right gravity of the whole key core can be ensured, and the center of gravity is stable, so that the center of gravity of the key core is on the same axis when the key core is pressed by finger pressure or when the key core is restored to its original shape without pressure, and the stability is maintained.

Specifically, the first cylindrical boss 430 is embedded in the first circular hole 350, so as to stabilize the position of the key cap 400 on the elastic support member 300. The second elastic arm 340 is connected to the first plane portion 310 and is adjacent to the first circular hole 350. When the second elastic arm 340 is pressed down, a certain contraction space is provided, and meanwhile, the second elastic arm 340 is tightly connected with the first plane part 310, so that the durability and stability of the whole keycap structure are ensured when the keycap is used for multiple times. The first round hole 350 can ensure that when the keycap is pressed down, the second cylindrical boss 440 is in contact with the conductive film 200 through the first round hole 350, the second cylindrical boss 440 is a conductive base and is used for conducting a signal when the keycap 400 is pressed, and the signal can be conducted once when the keycap 400 is pressed, so that the keycap 400 can complete an input function.

In an embodiment of the utility model, the elastic supporting member 300 is made of a silicone material, and the silicone material can make the first elastic arm 330 and the second elastic arm 340 more easily achieve the key striking feel of the key cap 400. Silica gel materials have many advantages, first, high temperature resistance, and applicable temperature range of-40 to 230 ℃, and can be used in microwave ovens and ovens. Secondly, easy cleaning: the silica gel product produced by the silica gel can be recovered to be clean after being washed by clear water. Third, long life: the silicon rubber material has stable chemical property, and the prepared product has longer service life compared with other materials. Fourthly, soft and comfortable: due to the softness of the silica gel material, the key core is comfortable in touch feeling during knocking, and is extremely flexible and not deformed. Fifth, the colors are varied: different beautiful colors can be prepared according to the requirements of customers. Sixth, environmental protection and innocuity: the raw materials are not fed into the factory and the finished products are not delivered, so that no toxic or harmful substances are generated, and the key core is safer to use by a user. Seventh, electrical insulation property: silicone rubber has a high resistivity and its resistance remains stable over a wide temperature and frequency range. Meanwhile, the silica gel has good resistance to high-voltage corona discharge and arc discharge, such as high-voltage insulators, high-voltage caps of televisions, parts of electrical appliances and the like. Eighth, low temperature resistance: the lowest use temperature critical point of the common rubber is-20 ℃ to-30 ℃, however, the silicone rubber still has better elasticity at-60 ℃ to-70 ℃, and certain silicone rubber with special formula can also bear extremely low temperature, such as a low-temperature sealing ring and the like. Ninth, conductivity: when conductive filler (such as carbon black) is added, the silicone rubber has good conductivity, such as conductive contact points of a keyboard, electric heating element parts, antistatic parts, shields for high-voltage cables, medical physiotherapy conductive films and the like. Tenth, weatherability: ordinary rubber is degraded rapidly under the action of ozone generated by corona discharge, while silicon rubber is not affected by ozone, and the physical properties of the silicon rubber are slightly changed under ultraviolet rays and other weather conditions for a long time, such as sealing materials used outdoors and the like. Eleventh, thermal conductivity: when some heat conducting stuffing is added, silicone rubber has excellent heat conducting performance, such as heat dissipating fin, heat conducting sealing pad, etc. Twelfth, radiation resistance: the radiation resistance of the silicone rubber containing phenyl groups is greatly improved.

The thickness and hardness of the elastic support assembly 300 are selected by hand plate verification in the embodiments of the present invention. The hand plate verification refers to a verification sample piece manufactured in a small amount before the product is shaped, and refers to a product needing to be produced by a mold, and the hand plate is a functional sample plate which is made in advance according to an appearance drawing or a structure drawing of the product on the premise that the mold is not opened and is used for checking the reasonability of the appearance or the structure. Specifically, through the palm verification, the silica gel material the elastic support component 300 first elastic arm 330 with second elastic arm 340 thickness is 0.25mm, and selects the 30 degrees silica gel material of hardness, like this the key cap 400 can realize pressing the elasticity curve.

Specifically, in a specific embodiment of the present invention, the stroke of the key cap 400 can be realized by a gap between the key cap 400 and the conductive film 200, where the gap is set to 1 by the distance L0 between the bottom surface of the first boss 450 and the conductive film 200. 2 mm. Specifically, a distance L1 from the top plane of the key cap 400 to the bottom plane of the first groove 410 is set to be 0.4mm, a thickness L2 of the plate where the first plane portion 310 is located is 0.3mm, a distance L3 from the bottom plane of the plate where the first plane portion 310 is located to the conductive film 200 is 1.35mm, a thickness L4 of the conductive film 200 is 0.12mm, and a thickness L5 of the bottom plate 100 is 0.3 mm; therefore, the overall thickness of the key core is L1+ L2+ L3+ L4+ L5 is 0.4mm +0.3+1.35mm +0.12mm +0.3 mm-2.47 mm, compared with the keyboard key cap thickness of the key core with the scissors structure in the prior art, the key cap thickness is 0.6mm, the key cap pressing stroke is 1.0mm, the scissor foot thickness is 1.2mm, the bottom plate 100 thickness is 0.3mm, the thinnest keyboard key core can only be 3.1mm, the key core in the embodiment of the utility model is thinner, the pressing stroke is longer, the use hand feeling is stronger, and the carrying is more convenient.

In a specific embodiment of the present invention, as shown in fig. 5, the present invention further provides a keyboard, including: a plurality of key cores as described above. The keyboard is a command and data input device for operating a computer device, and also refers to a set of function keys arranged to operate a machine or device via the system, such as: typewriter, computer keyboard. The keyboard is the most common and main input device, and english letters, numbers, punctuations and the like can be input into the computer through the keyboard, so as to send commands, input data and the like to the computer. In particular, the keyboard can also be a plurality of keyboards with various shortcut keys.

The keyboard further comprises a housing for holding the key core. In order to adapt to the requirements of different users, the keyboard is also provided with three indicator lights such as an alphabet capital and small case locking key, a numeric keypad locking key and a rolling locking key to mark the current state of the keyboard, and the indicator lights are positioned at the upper right corner of the keyboard. Specifically, the keyboard can be further provided with a key cap built-in indicator lamp, so that the current state of the keyboard can be judged more easily. The keyboard also comprises a keyboard circuit board, wherein the keyboard circuit board is positioned in the keyboard, is a control core of the whole keyboard and is used for the operation of key scanning identification, coding and transmission interfaces.

In an embodiment of the present invention, the present invention further provides a notebook computer, including: such as the keyboard described above. The notebook computer uses the keyboard, so that the notebook computer is lighter and thinner, is more convenient to carry, and increases market competitiveness.

In summary, in the present invention, the elastic supporting member 300 on one side of the conductive film 200 is disposed, and the elastic supporting member 300 extends in a direction away from the bottom plate 100, and the key cap 400 is disposed on one side of the elastic supporting member 300, and the key cap 400 is connected to the elastic supporting member 300, and the elastic supporting member 300 is made of an elastic material, so that the elastic supporting member 300 can be made thinner, and the whole key core can be made thinner. The thickness of the key core in the existing keyboard is reduced, so that the keyboard is more portable.

It is to be understood that the utility model is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the utility model as defined by the appended claims.

Claims (10)

1. A key core comprising: the conductive film is connected to one side of the bottom plate; characterized in that the key core further comprises:

the elastic support component is connected to one side of the conductive film, which is deviated from the direction of the bottom plate;

and the keycap is connected to one side of the elastic support component, which deviates from the direction of the conductive film.

2. The key core according to claim 1, wherein a side of the key cap facing the elastic support member is provided with a first groove, the elastic support member being connected to the first groove.

3. The key core according to claim 2, wherein a second groove is provided in the first groove;

the elastic support assembly includes: the first plane part is arranged towards one side of the keycap direction;

the first planar portion is connected within the second recess.

4. The key core of claim 3, wherein the first planar portion is bonded to the second groove.

5. The key core according to claim 3, wherein the elastic support member includes an inner support portion connected to the first plane portion, the inner support portion being provided with a second plane on a side toward the conductive film, the second plane being connected to the conductive film.

6. The key core of claim 5, wherein the second plane is bonded to the conductive film.

7. The key core of claim 5, wherein the elastic support assembly further comprises an outer support portion, the outer support portion comprising a first elastic arm, one end of the first elastic arm being disposed to be connected to the edge of the first plane portion, and the other end of the first elastic arm being connected to the conductive film;

the inner side supporting part further comprises a second elastic arm, the second elastic arm is arranged at the bottom of the first plane part in a surrounding mode around a central shaft of the elastic supporting assembly, one end of the second elastic arm is connected to the first plane part, and the other end of the second elastic arm is connected to the second plane part.

8. The key core according to claim 7, wherein a first circular hole is provided on the first plane portion, a second circular hole is provided on the second plane portion, and the first circular hole, the second circular hole and the elastic support member are coaxially provided.

9. A keyboard, comprising: a plurality of key cores as defined in any one of claims 1 to 8.

10. A notebook computer, comprising: the keyboard of claim 9.

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