CN216562875U - Key, keyboard and notebook - Google Patents

Abstract

The utility model discloses a key, a keyboard and a notebook computer, which comprise a reinforcing frame, a first film, a circuit board and a contact, wherein the reinforcing frame is provided with a first hole; the first film is arranged on one side of the reinforcing frame, and is provided with a second hole which is communicated with the first hole; the circuit board is arranged on the other side of the reinforcing frame, and a first contact is arranged on the circuit board and corresponds to the first hole and the second hole; the contact is connected with a first film, the first film is positioned between the contact and the reinforcing frame, the contact can elastically reset after being pressed, a second contact point is arranged on the first film and is suitable for penetrating through the first hole and contacting with the first contact point when the contact is pressed, or the contact is provided with a second contact point, a second hole is arranged on the first film and is communicated with the first hole, and the second contact point can penetrate through the first hole and the second hole and contact with the first contact point when the contact is pressed. The key of the utility model meets the requirement of adding a diode and a backlight lamp.

Description

Key, keyboard and notebook

Technical Field

The utility model relates to the technical field of input equipment, in particular to a key, a keyboard applying the key and a notebook applying the keyboard.

Background

The notebook is a portable electronic computing device, and in order to implement the lightness and thinness of the notebook, most of the keyboards on the notebook are thin-film keyboards, but the thin-film keyboards in the related art have the problems of pressing conflicts (ghost keys) and incapability of independently regulating and controlling the backlight of a single key.

SUMMERY OF THE UTILITY MODEL

The present invention is based on the discovery and recognition by the inventors of the following facts and problems:

the film keyboard then mainly relies on the triggering of thin film circuit realization button, and thin film circuit includes upper film, separate layer and lower floor's film, and the lower surface of upper film is printed with silver thick liquid circuit, and the upper surface of lower floor's film is printed with silver thick liquid circuit, and the separate layer is established between upper film and lower floor's film and is equipped with the through-hole, and when the user pressed the keyboard button, upper film and lower floor's film can realize the circuit at through-hole department and switch on to form the button and trigger.

In the related art, the ghost key is a natural defect of the matrix scanning keyboard, in order to avoid the ghost key, a diode needs to be additionally arranged on a Printed Circuit Board (PCB), backlight regulation of a single key of the keyboard needs to be realized based on the PCB, and the thin-film keyboard cannot meet the requirement of additionally arranging the diode and a backlight lamp.

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.

Therefore, the embodiment of the utility model provides a key which meets the requirement of additionally arranging a diode and a backlight lamp.

The embodiment of the utility model also provides a keyboard applying the key.

The embodiment of the utility model also provides a notebook computer using the keyboard.

The key of the embodiment of the utility model comprises: the reinforcing frame is provided with a first hole; the first film is arranged on one side of the reinforcing frame; the circuit board is arranged on the other side of the reinforcing frame, and is provided with a first contact which corresponds to the first hole; the contact is connected with the first film, the first film is located between the contact and the reinforcing frame, the contact can elastically reset after being pressed, a second contact is arranged on the first film and is suitable for penetrating through the first hole and being in contact with the first contact when the contact is pressed, or the contact is provided with a second contact, a second hole is arranged on the first film and is communicated with the first hole, and the second contact can penetrate through the first hole and the second hole and be in contact with the first contact when the contact is pressed.

The key of the embodiment of the utility model meets the requirement of additionally arranging the diode and the backlight lamp.

In some embodiments, the contact is provided with an inner cavity, a protrusion is arranged in the inner cavity, the protrusion corresponds to the first hole and the second hole, the second contact is arranged on the protrusion, and the protrusion is suitable for extending into the first hole and the second hole when the contact is pressed.

In some embodiments, the projection has a mounting plane facing the first contact, and the second contact is provided on the mounting plane.

In some embodiments, the key includes a second membrane, and the circuit board is disposed between the stiffener and the second membrane.

In some embodiments, the first film and the second film are mylar films.

In some embodiments, the circuit board and the stiffener are adhesively attached by an adhesive.

In some embodiments, the key comprises a key cap and a link, one end of the link is connected to the key cap, the other end of the link passes through the first membrane and is connected to the reinforcing frame, the contact is located between the key cap and the first membrane, and the height of the link is adjustable so that the key cap can press the contact.

In some embodiments, the connection frame includes a first frame, a second frame, and an elastic member, one end of the first frame passes through the first membrane and is rotatably connected to the reinforcement frame, the other end of the first frame is slidably connected to the key cap, one end of the second frame passes through the first membrane and is rotatably connected to the reinforcement frame, the other end of the second frame is slidably connected to the key cap, the elastic member is connected between the first frame and the second frame, and the elastic member is adapted to stretch and store energy when the key cap is pressed so that the first frame and the second frame can be reset.

In some embodiments, the connecting frame comprises a first arm and a second arm, the first arm and the second arm are pivotally connected, one end of the first arm is rotatably connected with the keycap, the other end of the first arm and the reinforcing frame can slide relatively, one end of the second arm is rotatably connected with the keycap, and the other end of the second arm and the reinforcing frame can slide relatively.

In some embodiments, the first contact includes a first portion and a second portion, the second contact adapted to connect between the first portion and the second portion to electrically connect the first portion and the second portion.

In some embodiments, a plurality of grooves are formed in one of the first portion and the second portion, a plurality of extending sections are formed in the other of the first portion and the second portion, and the plurality of extending sections are correspondingly matched in the plurality of grooves in a one-to-one mode.

In some embodiments, the material of the reinforcing frame is metal.

The keyboard provided by the embodiment of the utility model comprises keys, wherein the keys are the keys in any embodiment.

The notebook computer provided by the embodiment of the utility model comprises a keyboard, wherein the keyboard is the keyboard in the embodiment.

Drawings

Fig. 1 is a schematic cross-sectional view of a key according to an embodiment of the present invention.

Fig. 2 is a schematic view of the first contact of fig. 1.

Fig. 3 is a schematic cross-sectional view of a key according to another embodiment of the utility model.

Fig. 4 is a schematic perspective view of a key according to an embodiment of the present invention.

Fig. 5 is a schematic perspective view of an internal structure of a key according to an embodiment of the present invention.

Reference numerals:

a reinforcing frame 1; a first hole 11;

a first film 2; a second hole 21;

a circuit board 3; a first contact 31; a first portion 311; a groove 3111; a second portion 312; an extension 3121;

a contact 4; a second contact 41; an inner cavity 42; the projecting portion 43;

a keycap 5;

a connecting frame 6; a first arm 61; a second arm 62;

a second membrane 7.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

As shown in fig. 1 to 5, the key of the embodiment of the present invention includes a reinforcing frame 1, a first film 2, a circuit board 3, and a contact 4.

The reinforcing frame 1 is provided with a first hole 11, the reinforcing frame 1 can be formed by machining a material with better rigidity, and optionally, the reinforcing frame 1 can be made of metal. For example, the reinforcing frame 1 may be made of steel, alloy, or the like. As shown in fig. 1, the reinforcing frame 1 may have a flat plate shape, and the reinforcing frame 1 has a certain thickness in the vertical direction, and the reinforcing frame 1 may enhance structural strength and rigidity. The first hole 11 extends in the up-down direction and penetrates the upper surface and the lower surface of the reinforcing frame 1, and the first hole 11 may be a circular hole, a square hole, or the like.

The first membrane 2 is arranged on one side of the reinforcing frame 1, the second hole 21 is arranged on the first membrane 2, and the second hole 21 is communicated with the first hole 11. As shown in fig. 1, the first film 2 may be made of an insulating material, and the first film 2 may be fixed on the top surface of the reinforcing frame 1 by means of adhesion. The first film 2 can play a role in insulation protection, and the use safety of the key is enhanced. The second hole 21 extends in the up-down direction and penetrates the upper surface and the lower surface of the first film 2, and the second hole 21 may be a circular hole, a square hole, or the like.

In the up-down direction, the first hole 11 and the second hole 21 are opposite and communicate, for example, the hole diameter of the first hole 11 may be the same as that of the second hole 21, and the bottom opening of the second hole 21 is aligned and communicated with the top opening of the first hole 11.

The circuit board 3 is arranged on the other side of the reinforcing frame 1, and the circuit board 3 is provided with a first contact 31, and the first contact 31 corresponds to the first hole 11 and the second hole 21. Specifically, the circuit board 3 may be a Printed Circuit Board (PCB), and the circuit board 3 is substantially horizontally arranged and attached below the reinforcing frame 1. The first contact 31 may be provided on the upper surface of the circuit board 3, and the first contact 31 may be located directly below the first hole 11, that is, the first contact 31 may leak through the first hole 11 and the second hole 21 when the first film 2 is viewed in plan.

The contact 4 is connected to the first film 2, the first film 2 is located between the contact 4 and the reinforcing frame 1, the contact 4 is provided with a second contact 41, the second contact 41 can pass through the first hole 11 and the second hole 21 and contact the first contact 31 when the contact 4 is pressed, and the contact 4 can be elastically restored after the pressing.

Specifically, the contact 4 is provided on the upper side of the first film 2, and the bottom of the contact 4 may be hermetically connected to the first film 2, for example, the contact 4 may be provided integrally with the first film 2 or may be adhesively connected. The second contact 41 may be provided on the lower surface of the contact 4 with the second contact 41 facing the second hole 21. The contact 4 may be formed by an elastic material, for example, the contact 4 may be made of rubber or silicon gel, when the contact 4 is pressed downward, the second contact 41 may sequentially pass through the second hole 21 and the first hole 11 and contact the first contact 31, so as to achieve conduction of an open circuit point of the circuit on the circuit board 3, and when the contact 4 loses the external force, the contact 4 may reset itself.

In some embodiments, the second contact 41 may be provided on the first film 2, as shown in fig. 3, the first film 2 may be provided with no second hole 21, the second contact 41 may be provided on the lower surface of the first film 2, and the second contact 41 corresponds to the first hole 11, when the contact 4 is pressed, the first film 2 may be elastically deformed, at which time the second contact 41 may pass through the first hole 11 and contact the first contact 31, whereby conduction of an open point of a circuit may be achieved.

According to the key of the embodiment of the utility model, the first contact 31 is arranged on the circuit board 3, the second contact 41 is arranged on the contact 4, and the conduction of the open circuit point on the circuit board 3 can be realized by pressing the contact 4, so that the touch control form and structure of the key are simplified.

Due to the fact that the circuit board 3 is arranged, the diode and the backlight lamp can be directly additionally arranged on the circuit board 3, the problem of key conflict can be avoided by additionally arranging the diode, customized requirements of customers can be met by additionally arranging the backlight lamp (RGB (red, green and blue) led lamp, the keys are rich in light effect change, the installation requirements of the diode and the backlight lamp are met by the arrangement of the circuit board 3, and the problems that the pressing conflict (ghost key) and the backlight of a single key cannot be independently regulated and controlled can be solved.

In some embodiments, the contact 4 is provided with an internal cavity 42, a protrusion 43 is provided in the internal cavity 42, the protrusion 43 corresponds to the first hole 11 and the second hole 21, the second contact 41 is provided on the protrusion 43, and the protrusion 43 is adapted to protrude into the first hole 11 and the second hole 21 when the contact 4 is pressed.

Specifically, as shown in fig. 1, the contact 4 may be a button-shaped, the inner cavity 42 has an opening, the opening of the inner cavity 42 is provided at the top of the contact 4, the protrusion 43 may be provided on an inner top wall of the contact 4, and the protrusion 43 may extend in the up-down direction. The second contact 41 may be provided at the bottom end of the projection 43.

The arrangement of the protruding portion 43 can be inserted into the first hole 11 and the second hole 21 when the contact 4 is pressed, so that a guiding and positioning effect can be achieved, good contact between the first contact 4 and the second contact 4 is ensured, and on the other hand, the distance between the first contact 31 and the second contact 41 in a non-pressed state of the key can be reduced, so that the situation that the distance is large and the stroke error is large is avoided, and good contact between the first contact 4 and the second contact 4 is further ensured.

In some embodiments, the projection 43 has a mounting plane facing the first contact 31, and the second contact 41 is provided on the mounting plane. Specifically, the protrusion 43 may be cylindrical, the bottom of the protrusion 43 may be flat and form a mounting plane, and the second contact 41 may be fixed on the mounting plane, thereby facilitating the mounting and fixing of the second contact 41.

In some embodiments, the key comprises a second membrane 7, the circuit board 3 being arranged between the reinforcement cage 1 and the second membrane 7. Specifically, as shown in fig. 1, the second film 7 may be attached to the lower surface of the circuit board 3, and the second film 7 may shield the lower surface of the circuit board 3, so as to enhance the insulation protection effect.

Optionally, the first and second membranes 2, 7 are both mylar membranes.

In some embodiments, the circuit board 3 and the stiffener 1 are adhesively attached by an adhesive. As shown in fig. 1, a layer of back glue may be disposed between the circuit board 3 and the reinforcing frame 1, and the circuit board 3 and the reinforcing frame 1 may be fixed by the back glue, so that the insulation protection between the circuit board 3 and the reinforcing frame 1 may also be achieved.

In some embodiments, the key comprises a key cap 5 and a link 6, one end of the link 6 is connected to the key cap 5, the other end of the link 6 passes through the first membrane 2 and is connected to the reinforcement 1, the contact 4 is located between the key cap 5 and the first membrane 2, and the link 6 is retractable so that the key cap 5 can press the contact 4.

Specifically, as shown in fig. 1, the key cap 5 may be disposed above the contact 4, the top end of the link frame 6 may be connected to the key cap 5, the bottom end of the link frame 6 may pass through the first film 2 and be connected to the reinforcing frame 1, the link frame 6 may be of a sleeve structure, the compression of the link frame 6 may be achieved by pressing the key cap 5, and then the pressing of the contact 4 may be achieved.

The setting of key cap 5 can shelter from contact 4, has avoided the direct condition with contact 4 contact to play the protective effect to contact 4. The connecting frame 6 is arranged to have a limiting effect on the keycap 5, so that the situation that the keycap 5 is inclined in the pressing process is avoided, and good contact between the first contact 31 and the second contact 41 is guaranteed.

It should be noted that after the key cap 5 is pressed, the key cap 5 can be reset by the elasticity of the contact 4 itself, and in some other embodiments, the reset can be realized by adding an elastic member between the key cap 5 and the reinforcing plate.

In some embodiments, the connection frame includes a first frame, a second frame, and an elastic member, one end of the first frame passes through the first membrane and is rotatably connected with the reinforcement frame, the other end of the first frame is slidably connected with the key cap, one end of the second frame passes through the first membrane and is rotatably connected with the reinforcement frame, the other end of the second frame is slidably connected with the key cap, the elastic member is connected between the first frame and the second frame, and the elastic member is adapted to stretch the stored energy when the key cap is pressed so that the first frame and the second frame can be reset.

Specifically, first frame and second frame can be platelike, and the bottom of first frame can be through pivot and enhancement frame pivot continuous, can be equipped with first spout on the key cap, and the top of first frame can slide the cooperation in first spout, and the bottom of second frame can be through pivot and enhancement frame pivot continuous, can be equipped with the second spout on the key cap, and the top of second frame can slide the cooperation in the second spout. The interval on the top of first frame and the top of second frame is greater than the interval of the bottom of first frame and the bottom of second frame, and the elastic component can be the spring, and the one end of elastic component links to each other with first frame, and the other end of elastic component links to each other with the second frame.

When pressing key cap 5, the interval on the top of first frame and the top of second frame can the grow, and the elastic component can be by tensile energy storage, and when key cap 5 lost the exogenic action, the elastic component can contract and reset first frame and second frame to initial position.

In some embodiments, the connecting frame 6 is a scissor-type connecting frame, the connecting frame 6 comprises a first arm 61 and a second arm 62, the first arm 61 and the second arm 62 are pivotally connected, one end of the first arm 61 is rotatably connected with the key cap 5, the other end of the first arm 61 and the reinforcing frame 1 can slide relatively, one end of the second arm 62 is rotatably connected with the key cap 5, and the other end of the second arm 62 and the reinforcing frame 1 can slide relatively.

Specifically, as shown in fig. 1, the first arm 61 and the second arm 62 are arranged in mirror symmetry, and the middle portion of the first arm 61 and the middle portion of the second arm 62 may be pivotally connected by a pivot. The top end of the first arm 61 can be hinged or pivotally connected with the key cap 5, the reinforcing frame 1 can be provided with a first sliding groove, and the bottom end of the first arm 61 can be matched in the first sliding groove and can slide along the first sliding groove. The top end of the second arm 62 can be hinged or pivotally connected with the key cap 5, the reinforcing frame 1 can be provided with a second sliding slot, and the bottom end of the second arm 62 can be matched in the second sliding slot and can slide along the first sliding slot.

When the key cap 5 is pressed, the connecting frame 6 can realize telescopic adjustment through the scissors action of the first arm 61 and the second arm 62. Cut fork link stable in structure and have better restraint effect, guaranteed the accuracy nature that key cap 5 pressed the direction.

It can be understood that two scissor-type connecting frames can be provided, the two scissor-type connecting frames are symmetrically arranged, and the contact 4 is arranged in the middle of the two scissor-type connecting members. Therefore, the stress balance is ensured.

In some embodiments, the first contact 31 includes a first portion 311 and a second portion 312, and the second contact 41 is adapted to be connected between the first portion 311 and the second portion 312 to electrically connect the first portion 311 and the second portion 312. As shown in fig. 2, the first portion 311 may be a positive electrode portion, the second portion 312 may be a negative electrode portion, the first portion 311 and the second portion 312 are arranged at an interval, and after the key cap 5 is pressed, the second contact may electrically connect the first portion 311 and the second portion 312, so as to complete circuit conduction, thereby implementing triggering of an electrical signal.

In some embodiments, one of the first portion 311 and the second portion 312 is provided with a plurality of grooves 3111, the other is provided with a plurality of extending sections 3121, and the plurality of extending sections 3121 are fitted in the plurality of grooves 3111 in a one-to-one correspondence manner. As shown in fig. 2, the first portion 311 may be provided with a plurality of grooves 3111, the plurality of grooves 3111 may be arranged in parallel and at intervals in the front-rear direction, the second portion 312 may be provided with a plurality of extending sections 3121, the plurality of extending sections 3121 may be arranged in parallel and at intervals in the front-rear direction, and each extending section 3121 is inserted into a corresponding groove 3111 and is spaced apart from the inner wall of the groove 3111. Therefore, the conductive effect can be enhanced, and the stability of circuit conduction is ensured.

The following describes a keyboard of an embodiment of the present invention.

The keyboard of the embodiment of the utility model comprises a plurality of keys, and the plurality of keys can be the keys described in the embodiment. The keys of the keyboard of the embodiment of the utility model simplify the touch control form and structure of the keys and meet the requirement of adding diodes and backlight lamps.

A notebook of an embodiment of the present invention is described below.

The notebook computer of the embodiment of the utility model comprises a keyboard, and the keyboard can be the keyboard described in the embodiment.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.

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 at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (14)

1. A key, comprising:

the reinforcing frame is provided with a first hole;

the first film is arranged on one side of the reinforcing frame;

the circuit board is arranged on the other side of the reinforcing frame, and is provided with a first contact which corresponds to the first hole;

a contact connected to the first membrane, the first membrane being located between the contact and the stiffener, the contact being resiliently resettable after being pressed, the first membrane being provided with a second contact adapted to pass through the first aperture and contact the first contact when the contact is pressed, or,

the contact is provided with a second contact, the first film is provided with a second hole, the second hole is communicated with the first hole, and the second contact can pass through the first hole and the second hole and be in contact with the first contact when the contact is pressed.

2. The key of claim 1, wherein the contact defines an interior cavity, a protrusion defined within the interior cavity, the protrusion corresponding to the first and second apertures, the second contact defined on the protrusion, the protrusion adapted to extend into the first and second apertures when the contact is depressed.

3. The key of claim 2, wherein the protrusion has a mounting plane facing the first contact, the second contact being disposed on the mounting plane.

4. The key of claim 1, comprising a second membrane, wherein the circuit board is disposed between the stiffener and the second membrane.

5. The key of claim 4, wherein the first and second films are mylar films.

6. The key of claim 1, wherein said circuit board and said reinforcing frame are adhesively attached by an adhesive.

7. The key of claim 1, comprising a key cap and a linking frame, wherein one end of the linking frame is connected to the key cap, the other end of the linking frame passes through the first membrane and is connected to the reinforcing frame, the contact is located between the key cap and the first membrane, and the height of the linking frame is adjustable so that the key cap can press the contact.

8. The key of claim 7, wherein the connecting frame comprises a first frame, a second frame, and an elastic member, wherein one end of the first frame passes through the first membrane and is rotatably connected to the reinforcing frame, the other end of the first frame is slidably connected to the key cap, one end of the second frame passes through the first membrane and is rotatably connected to the reinforcing frame, the other end of the second frame is slidably connected to the key cap, the elastic member is connected between the first frame and the second frame, and the elastic member is adapted to stretch and store energy when the key cap is pressed so that the first frame and the second frame can be reset.

9. The key of claim 7, wherein the connecting frame comprises a first arm and a second arm, the first arm and the second arm are pivotally connected, one end of the first arm is rotatably connected to the key cap, the other end of the first arm is slidably movable relative to the reinforcing frame, one end of the second arm is rotatably connected to the key cap, and the other end of the second arm is slidably movable relative to the reinforcing frame.

10. The key of claim 1, wherein the first contact comprises a first portion and a second portion, the second contact adapted to connect between the first portion and the second portion to electrically connect the first portion and the second portion.

11. The key of claim 10, wherein one of the first portion and the second portion has a plurality of grooves and the other has a plurality of extensions, the plurality of extensions being fitted in the plurality of grooves in a one-to-one correspondence.

12. The key of any one of claims 1-11, wherein the material of the stiffener is metal.

13. A keyboard comprising keys, said keys being in accordance with any one of claims 1-12.

14. A notebook comprising a keyboard according to claim 13.

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