CN217543743U

CN217543743U - Electronic device

Info

Publication number: CN217543743U
Application number: CN202120667287.9U
Authority: CN
Inventors: 陈世涛; 潘春娇; 高月莉; 王波
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2022-10-04
Anticipated expiration: 2031-03-31
Also published as: WO2022206711A1

Abstract

The embodiment of the application provides electronic equipment. The flexible layers are at least arranged between the two ends of the balance rod and the groove wall of the assembling groove and between the two ends of the balance rod and the convex edges, so that the collision between metal and metal is changed into the collision between metal and nonmetal, the noise generated by the collision between the balance rod and the inner wall of the assembling groove is reduced, the purpose of reducing the vibration and the noise of the keyboard is realized, the problem of the noise of the keyboard is improved, and the problem that the noise is larger when the keyboard is used due to the collision and the resonance between the balance rod and the assembling groove of the keyboard substrate in the using process of the existing keyboard is solved.

Description

Electronic equipment

Technical Field

The embodiment of the application relates to the technical field of terminals, in particular to an electronic device.

Background

A notebook computer (laptop) is a small-sized portable terminal device, wherein a keyboard is one of important input ports in a hardware device of the notebook computer, and the performance of the keyboard greatly affects the user experience.

At present, in a keyboard of a notebook computer, in order to balance the problem of uneven stress of large-size keys (such as shift keys, enter keys, space keys and the like) during use, a pair of balance rods (Linkbar) is often installed below a key cap of the large-size key, the balance rods are often made of stainless steel, two ends of each balance rod are rotatably connected with an assembly groove (namely an olecranon) arranged on a base plate of the keyboard, the balance rods can play a role in transferring stress, the uniform stress is ensured when the key cap is knocked, and the whole plane of the key cap can move almost simultaneously.

However, in the process of knocking the keyboard, noise is generated due to collision between the balance bar and the assembling groove on the substrate of the keyboard, and in addition, when a speaker in the notebook computer makes a sound, resonance is easily generated between the balance bar and the substrate of the keyboard, which finally causes the noise of the keyboard to be larger in the use process, so how to overcome the problem of the noise of the keyboard becomes a problem to be solved urgently for the tablet PC.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides an electronic equipment, has realized the purpose that the keyboard damping was fallen and is fallen and make an uproar, has improved the keyboard noise problem, has solved current keyboard and has leaded to the great problem of noise when the keyboard uses because the assembly groove collision and the resonance of balancing pole and keyboard base plate in the use.

An embodiment of the present application provides an electronic device, which at least includes: the main machine body is rotatably connected with the display screen, and a loudspeaker is arranged in the main machine body;

further comprising: a keyboard device on the main body, the keyboard device including a keyboard substrate and a plurality of keys arranged on the keyboard substrate,

each of the keys includes: a key cap and at least one resilient component, the resilient components being connected to the key cap and the keyboard substrate, respectively;

at least some of the plurality of keys further comprise: the balance rod is rotationally connected with the keycap;

the keyboard substrate is provided with at least two opposite assembly side walls, the assembly side walls are provided with assembly grooves, and two ends of the balancing rod are rotatably arranged in the assembly grooves;

the top ends of the two opposite assembly side walls are provided with opposite convex edges;

at least flexible layers are arranged between the two ends of the balancing rod and the groove wall of the assembling groove and between the two ends of the balancing rod and the convex edge.

The electronic equipment that this application embodiment provided, through at least setting up the flexible layer between the both ends of balancing pole and the cell wall of assembly groove and between the both ends of balancing pole and the protruding edge, become the collision between metal and the nonmetal between metal, thereby reduced the noise that the collision between balancing pole and the assembly groove inner wall produced, the purpose of making an uproar falls in the keyboard damping has been realized, the keyboard noise problem has been improved, the great problem of noise when having solved current keyboard and leading to the keyboard to use because the assembly groove collision and the resonance of balancing pole and keyboard base plate in the use.

In one possible embodiment, the flexible layer is a magnetically containing flexible layer.

In one possible embodiment, the magnetic-containing flexible layer is formed by mixing any one of the following flexible materials with magnetic powder:

resin material, elastic glue, wear-resistant cloth and elastic paint;

or the magnetic flexible layer is formed by bonding a resin layer, an elastic adhesive layer, wear-resistant cloth or an elastic paint layer with the magnetic layer.

In a possible embodiment, two ends of each balancing rod are provided with hooks which are rotatably connected with the assembling grooves;

the outer surface of the hook is provided with the flexible layer, or the convex edge is provided with the flexible layer at the position contacted with the hook and the assembling groove is provided with the flexible layer at the position contacted with the hook.

In a possible embodiment, the hook is conical, and the large end of the conical shape is fixedly connected to the balancing bar

In one possible embodiment, the elastic glue comprises an ultraviolet UV glue or a silicone glue;

the elastic adhesive layer is an ultraviolet UV (ultraviolet) adhesive layer or a silica gel film.

In a possible embodiment, the thickness of the flexible layer is between 0.03mm and 0.1 mm.

In a possible implementation manner, a through groove is formed in the keyboard substrate at a position close to the assembling groove, and the through groove is communicated with the assembling groove.

In one possible embodiment, the electronic device is a notebook computer.

In a possible embodiment, the speaker is arranged close to an edge of the keyboard device.

Drawings

Fig. 1 is a schematic perspective view of an electronic device according to an embodiment of the present disclosure;

fig. 2 is an exploded schematic view of a keyboard device in an electronic device according to an embodiment of the present application;

fig. 3 is an exploded schematic view of one of the keys of the electronic device according to an embodiment of the present disclosure;

FIG. 4 is an enlarged schematic view of the button of FIG. 3 after explosion;

FIG. 5 is a side view of one of the keys of the electronic device according to an embodiment of the present application;

FIG. 6 is a schematic diagram illustrating an assembly of a balance bar and a key cap of an electronic device according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a hook of an electronic device according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a mounting slot area of an electronic device according to an embodiment of the present application;

FIG. 9 is a schematic view of another structure of a mounting slot region of an electronic device according to an embodiment of the present disclosure;

fig. 10 is a schematic structural diagram of another mounting slot region of an electronic device according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of a ledge area of an electronic device according to an embodiment of the application.

Description of the reference numerals:

100-an electronic device; 10-a display screen; 20-a host body; 21-a mounting portion;

30-a keyboard device; 31. 31a, 31b, 31 c-keys; 311-a keycap; 3111-a cartridge;

3112-card slot; 3113-back side; 312-a rebound assembly; 3121-upper scissor feet;

3122-lower scissors foot; 32-a keyboard substrate; 32 a-contacts; 321-assembling the side wall;

321a, 321 b-assembly slots; 321 c-a separator; 321 d-convex edge; 322-a snap-fit;

323-circuit board; 324-a metal backplane; 325-through groove; 33-a balance bar;

331a, 331 b-hook; 34-a flexible layer; 40-loudspeaker.

Detailed Description

The embodiment of the present application provides an electronic device, which may be a mobile terminal, a fixed terminal, or a foldable device having a keyboard, such as a tablet computer (Table), a notebook computer (laptop), an ultra-mobile personal computer (UMPC), a handheld computer, an intercom, a netbook, a POS machine, a Personal Digital Assistant (PDA), and the like. Or the electronic device may be a keyboard.

In the embodiment of the present application, a notebook computer is taken as an example of the electronic device.

Fig. 1 is a schematic perspective view illustrating a notebook computer, and referring to fig. 1, an electronic device 100 may include: the display screen 10 and the host body 20, the display screen 10 and the host body 20 can be rotatably connected, for example, the display screen 10 and the host body 20 can be connected through a rotating shaft; or, the display screen 10 and the main body 20 may be rotatably connected by a hinge structure; or, in some examples, the display screen 10 and the host body 20 may be independent devices, for example, the display screen 10 and the host body 20 may be detachable, when in use, the display screen 10 is placed on the host body 20, and after the use is finished, the display screen 10 and the host body 20 may be separated from each other.

In order to achieve the display effect of the display screen 10, the display screen 10 and the main body 20 are electrically connected, for example, the display screen 10 and the main body 20 may be electrically connected through a contact, the display screen 10 and the main body 20 may be electrically connected through a Flexible Printed Circuit (FPC), the display screen 10 and the main body 20 may be electrically connected through a wire, and the display screen 10 and the main body 20 may be wirelessly connected through a wireless signal.

Referring to fig. 1, in order to implement the input of the electronic device, the electronic device 100 may further include: the keyboard device 30, the keyboard device 30 can be disposed on the main body 20, for example, as shown in fig. 2, the main body 20 has a mounting portion 21, the keyboard is assembled on the mounting portion 21 of the main body 20, the keyboard device 30 is electrically connected to the control unit in the main body 20, and the keyboard device 30 is used as an input device of the electronic device 100.

Referring to fig. 1, in order to realize the external sound playing of the electronic device 100, a speaker 40 is often disposed in the main body 20, so that a user can listen to the sound emitted by the electronic device 100 through an external earphone or through the built-in speaker 40. The design position of the speaker 40 needs to be set according to specific working conditions, in some embodiments of the present application, the speaker 40 is disposed near the outer edge of the keyboard apparatus 30, for example, as shown in fig. 1, two speakers 40 may be disposed symmetrically at the lower edge of the keyboard apparatus 30. Of course, the speaker 40 may be provided at the upper edge or the left and right side edges of the keyboard apparatus 30. Sound output holes (not shown) of the electronic device 100 may be formed corresponding to the positions of the speakers 40 or may be formed on the left and right sides of the main body 20.

Fig. 2 shows a structure of the keyboard apparatus 30, and referring to fig. 2, the keyboard apparatus 30 may include: the keyboard substrate 32 and the plurality of keys 31 disposed on the keyboard substrate 32, the types of the keys 31 can refer to the existing keyboard, for example, the plurality of keys 31 include number keys, function keys (e.g., delete key, insert key, etc.), and alphabet keys, etc. The keys 31 may be divided into single keys, i.e., keys just above the keyboard, e.g., keys corresponding to respective letters and respective numbers, and multiple keys, i.e., keys other than the single keys, according to their sizes. Referring to fig. 2, some of the keys 31, such as single-key keys, are smaller in size, for example, in a keyboard apparatus 30 of the present application, the single-key keys are each 1.6cm long and wide; the partial keys 31, such as the multiple keys (for example, the space key 31a, the Enter key 31b, and the Shift key 31 c) are larger than the single keys, and illustratively, in the keyboard apparatus 30 of the present application, the partial multiple keys have a length and a width of 1.8cm and 1.6cm, respectively, and the partial multiple keys have a length and a width of 10.2cm and 1.6cm, respectively, and so on.

In order to realize the input function of the key 31, as shown in fig. 2, a contact 32a is disposed on the keyboard substrate 32, and the key 31 is pressed to trigger the contact 32a to realize the input function.

Fig. 3 is a schematic diagram of the electronic device 100 in which one Enter key 31b is split, and fig. 4 is an enlarged schematic diagram of the split key 31 in fig. 3. It should be noted that the keyboard substrate 32 shown in fig. 4 is a portion of the keyboard substrate 32 corresponding to one of the keys 31, that is, only a portion of the keyboard substrate 32 is shown in fig. 4. Fig. 4 specifically illustrates one of the Enter keys 31b in fig. 2 as an example.

Referring to fig. 4, each key 31 may include: the key cap 311 and at least one rebound component 312, for example, in fig. 4, the number of the rebound component 312 is two, of course, in some examples, the number of the rebound component 312 may also be one or more than two, the rebound component 312 is respectively connected with the key cap 311 and the keyboard substrate 32, and the rebound component 312 is used for driving the key cap 311 to reset after the finger leaves the key cap 311 after the finger presses the key cap 311.

In the embodiment of the present application, referring to fig. 4, each resilient assembly 312 includes an upper scissor leg 3121 and a lower scissor leg 3122, the upper scissor leg 3121 and the lower scissor leg 3122 are intersected and rotatably connected to each other, one end of the upper scissor leg 3121 and one end of the lower scissor leg 3122 are connected to the keyboard substrate 32, the other end of the upper scissor leg 3121 and the other end of the lower scissor leg 3122 are connected to the key cap 311, and the upper scissor leg 3121 and the lower scissor leg 3122 have elasticity, and when the end of the upper scissor leg 3121 and the end of the lower scissor leg 3122 connected to the key cap 311 are compressed, and the key cap 311 is reset by the upper scissor leg 3121 and the lower scissor leg 3122 due to its elasticity when the external force is removed.

In the embodiment of the present application, the material of the upper scissor feet 3121 and the lower scissor feet 3122 may be plastic. The matching relationship of the upper scissor feet 3121 and the lower scissor feet 3122 can refer to the scissor feet of the existing keys.

For example, as shown in fig. 4, the keyboard substrate 32 is provided with a fastener 322, the upper scissors feet 3121 and the lower scissors feet 3122 are provided with fasteners (not shown), and the upper scissors feet 3121 and the lower scissors feet 3122 are respectively connected with the fastener 322 on the keyboard substrate 32 by fasteners.

The upper scissors foot 3121 and the lower scissors foot 3122 may be connected to the key cap 311 by a snap-fit manner, and in some examples, the upper scissors foot 3121 and the lower scissors foot 3122 may be connected to the key cap 311 by abutting, for example, one end of the upper scissors foot 3121 and one end of the lower scissors foot 3122 abut against a back face 3113 of the key cap 311 (see fig. 6 described below).

In the embodiment of the present application, in order to balance the forces exerted on the large-size keys 31 (e.g., the space key 31a, the Enter key 31b, and the Shift key 31 c) during use, referring to fig. 4, at least some of the keys 31 in the plurality of keys 31 further include: the at least one balance bar 33, for example, the large-sized keys 31 such as the space key 31a, the Enter key 31b, and the Shift key 31c in fig. 2, may further include at least one balance bar 33, or, when the size of each key 31 is large, each key 31 may also include at least one balance bar 33.

In the embodiment of the present application, referring to fig. 4, the number of the balance bars 33 is two, of course, in some other examples, the number of the balance bars 33 may also be one, or the number of the balance bars 33 may also be three, and the following embodiment specifically takes an example that one key 31 corresponds to two balance bars 33.

The keyboard base plate 32 has at least two opposite assembling side walls 321, as shown in fig. 4, the keyboard base plate 32 has two opposite assembling side walls 321, the two assembling side walls 321 are respectively opened with assembling grooves 321a and assembling grooves 321b, two ends of each balance bar 33 are respectively rotatably disposed in the assembling grooves 321a and the assembling grooves 321b during rotation, for example, a first end of the balance bar 33 has a hook 331a, the hook 331a is rotatably connected in the assembling groove 321a (as shown in fig. 5), a second end of the balance bar 33 has a hook 331b, and the hook 331b is rotatably connected in the assembling groove 321 b. The balancing bar 33 can be longitudinally rotated about the fitting groove 321a and the fitting groove 321 b. To ensure that the balance bar 33 is not obstructed during the rotation process, the mounting sidewall 321 is generally at an angle to the keyboard base plate 32, e.g., 90 ° (see fig. 4), 60 °, 45 °, etc. between the mounting sidewall 321 and the keyboard base plate 32.

Referring to fig. 4, in some embodiments, a through groove 325 may be further formed on the keyboard substrate 32 at a position close to the mounting groove 321a (321 b), and the through groove 325 communicates with the mounting groove 321a (321 b).

Referring to fig. 5, when the number of the balance bars 33 corresponding to one key cap 311 is two, the hooks 331a of the first ends of the two balance bars 33 respectively extend into the two fitting grooves 321a, wherein the two fitting grooves 321a may be separated by a partition 321c, so that the hooks 331a of the first ends of the two balance bars 33 do not interfere or collide with each other when rotating in the fitting grooves 321 a. The hooks 331b of the second ends of the two balance bars 33 are inserted into the two fitting grooves 321b, respectively. The two fitting grooves 321b may be separated by a partition 321c, or, in some examples, the two fitting grooves 321a and the two fitting grooves 321b may not have the partition 321c therebetween, and the two fitting grooves 321a and the two fitting grooves 321b communicate with each other.

In the embodiment of the present application, referring to fig. 5, the keyboard substrate 32 may include a metal base plate 324 and a Circuit board 323, where the Circuit board 323 may be a Printed Circuit Board (PCB), or the Circuit board 323 may be a Flexible Printed Circuit (FPC), where the metal base plate 324 plays a supporting role, the contact 32a in fig. 2 is specifically disposed on the Circuit board 323, and the contact 32a is electrically connected to the Circuit board 323. The metal bottom plate 324 is provided with a convex fitting sidewall 321 (see fig. 4), and the fitting sidewall 321 is opened to form a fitting groove 321a (321 b). The assembling sidewall 321 may be integrally formed with the metal base plate 324, or the assembling sidewall 321 may be fixed on the metal base plate 324 by clipping, welding, or fastening.

In some examples, the keyboard substrate 32 may further include a shielding layer (not shown), which may be located on the circuit board 323 to shield traces on the circuit board 323.

Referring to fig. 6, balance bar 33 is rotatably connected to key cap 311, for example, a back face 3113 of key cap 311 is provided with a latch 3111, a slot 3112 is defined between two oppositely arranged latches 3111, balance bar 33 is latched into slot 3112, and balance bar 33 is rotatable in slot 3112, referring to fig. 6, each balance bar 33 is provided with two slots 3112 corresponding to the back face of key cap 311.

Of course, in some examples, the number of card slots 3112 includes, but is not limited to, two. When setting up balancing pole 33 and making a certain position atress on the key cap 311, whole key cap 311 can wholly descend, has guaranteed that key cap 311 atress is even when using.

Wherein, key cap 311 can be the plastics key cap, can integrated into one piece between fixture block 3111 and the key cap 311, perhaps, can set up through the mode of welding or joint between fixture block 3111 and the key cap 311.

Referring to fig. 7, in some embodiments, in order to make it easier to assemble both ends of the stabilizer bar 33 with the assembly grooves 321a (321 b), it is also possible to provide the

hooks

331a and 331a at both ends of the stabilizer bar 33 in a tapered shape with the large ends of the tapered shape connected to the stabilizer bar 33, i.e., the outer diameters of the

hooks

331a and 331a are gradually reduced from one end connected to the stabilizer bar 33 to the other end. Thus, it is possible to facilitate the

hooks

331a and 331a at both ends of the balance bar 33 to be inserted into the

fitting grooves

321a and 321b, on the one hand, when the

hooks

331a and 331a are tapered, so that the contact area between the

hooks

331a and 331b and the

fitting grooves

321a and 321b is reduced, respectively, and thus resonance occurs, or when the

hooks

331a and 331b at both ends of the balance bar 33 collide with the

fitting grooves

321a and 321b when the key 31 is struck, the striking sound is reduced, thereby achieving the purpose of reducing noise.

It should be noted that in the embodiment of the present application, the outer diameters of the hook 331a and the hook 331a at both ends of the stabilizer bar 33 may be set to be constant outer diameters, and the outer diameters of the hook 331a and the hook 331a at both ends of the stabilizer bar 33 are smaller than the outer diameter of the stabilizer bar 33, for example, the outer diameters of the hook 331a and the hook 331a at both ends of the stabilizer bar 33 are directly reduced to be constant outer diameters from the end portion of the stabilizer bar 33.

In one solution, in order to ensure that the balance bar 33 is wear-resistant and has a certain strength, the balance bar 33 is made of stainless steel material, and the metal bottom plate 324 and the mounting side wall 321 are also made of metal, when the two ends of the balance bar 33 are rotatably disposed in the mounting

grooves

321a and 321b, the balance bar 33 rotates around the two ends (see, for example, the first end hook 331a and the second end hook 331b of the balance bar 33 as shown in fig. 4) along with the up-and-down movement of the key 31 during use, so that when the key 31 is knocked, the two ends of the balance bar 33 easily collide with the groove wall of the mounting groove 321a (321 b), and noise is generated.

In addition, because the speaker 40 is arranged in the main body 20 of the electronic device 100, the speaker 40 is often close to the outer edge of the keyboard apparatus 30, when the speaker 40 works, the emitted sound is easy to resonate with the balance bar 33, the metal bottom plate 324 and the assembling side wall 321 of stainless steel, and in the process of resonating, because the balance bar 33 moves between the groove walls of the assembling groove 321a, the balance bar 33 collides with the groove wall of the assembling groove 321a during resonating, so that noise is generated in the capacity, and finally, the noise of the electronic device 100 is relatively high, thereby causing great influence on the use of a user, and reducing the satisfaction degree of the user on the electronic device 100.

Therefore, one solution is as follows: the assembly side wall 321 (see fig. 4) is made of plastic, inner walls of the assembly groove 321a and the assembly groove 321b formed in this way are made of plastic, so that when the balance bar 33 moves up and down, collision sound between the balance bar 33 and the plastic is reduced, and when music or video is played, the vibration and noise reduction effect is achieved, however, because the metal base plate 324 is made of metal, and the assembly side wall 321 is made of plastic, when the metal base plate 324 and the assembly side wall 321 are integrally injected, the bonding force between the metal base plate 324 and the assembly side wall 321 at the interface is small, and after the balance bar 33 moves up and down along with the keycap 311, delamination occurs between the assembly side wall 321 and the metal base plate 324.

In order to solve the above problem, in the embodiment of the present application, the flexible layer 34 may be provided at least between both ends of the balance bar 33 and the groove wall of the fitting groove 321 a. For example, as shown in fig. 8, a flexible layer 34 may be provided on a groove wall of the fitting groove 321 a. Alternatively, as in fig. 9, flexible layers 34 may be provided on the outer surfaces of both ends of the stabilizer bar 33. Still alternatively, as shown in fig. 10, flexible layers 34 may be provided on both outer surfaces of the groove wall of the fitting groove 321a and both ends of the balance bar 33. Therefore, the collision between metal and nonmetal is changed into the collision between metal and nonmetal, and thus, when resonance occurs or the keyboard is knocked, noise generated by the collision between the balance rod 33 and the groove wall of the assembling groove 321a is reduced, so that the problem of noise of the keyboard is solved, and the effects of vibration reduction and noise reduction are realized in the embodiment of the application.

It should be noted that, since both ends of the balance bar 33 often collide with the tips of the

fitting grooves

321a and 321b when colliding between the both ends of the balance bar 33 and the

fitting grooves

321a and 321b, when the flexible layer 34 is provided on the groove wall of the fitting groove 321a, the flexible layer 34 may be provided only on the groove wall of the tip of the fitting groove 321a, and of course, in some examples, as shown in fig. 8, the flexible layer 34 may be provided on both inner walls of the fitting groove 321 a.

In some embodiments of the present application, the top ends of the two opposite assembling side walls 321 have opposite convex edges 321d, for example, referring to fig. 4, the top end of one assembling side wall 321 of the two assembling side walls 321 is provided with the convex edge 321d, the top end of the other opposite assembling side wall 321 is also provided with the convex edge 321d, and the two convex edges 321d are opposite. The top ends of the

fitting grooves

321a and 321b extend to the bottom surface of the ledge 321d, so that the

hooks

331a and 331b at both ends of the balance bar 33 collide with the ledge 321d to generate noise.

At this time, in order to reduce noise generated by the collision between the hook 331a and the hook 331b at both ends of the balance bar 33 and the ledge 321d, referring to fig. 11, a flexible layer 34 may be provided between both ends (i.e., the hook 331a and the hook 331 b) of the balance bar 33 and the ledge 321d, for example, in the present embodiment, referring to fig. 11, the flexible layer 34 is provided on the downward surface (i.e., the bottom surface) of the ledge 321d, so that the hook 331a and the hook 331b at both ends of the balance bar 33 collide with the flexible layer 34, thereby greatly reducing noise.

It is easily understood that fig. 11 is only an example, and in other embodiments of the present application, the flexible layer 34 is disposed on the outer surfaces of the hook 331a and the hook 331b, or the flexible layer 34 is disposed on both the position where the protruding edge 321d contacts the hook 331a (331 b) and the position where the assembly groove 321a (321 b) contacts the hook 331a (331 b), so as to achieve the purpose of improving the keyboard noise and reducing vibration and noise.

In the embodiment of the present application, the flexible layer 34 may be: one or more of a resin layer, an elastic adhesive layer, wear-resistant cloth and an elastic paint layer.

In the embodiment of the application, the resin layer may be made of one or more of polyether ether nitrile, polyether ether ketone, polyimide, polycarbonate, fluorine-containing resin, and aromatic heterocyclic resin materials.

In this embodiment, the elastic adhesive layer may be made of Ultraviolet (UV) glue or silica gel.

In the embodiment of the application, the elastic paint layer can be made of polyurea elastic paint or polyurethane elastic paint.

In the embodiment of the present application, the thickness of the flexible layer 34 may be any value between 0.03mm and 0.1mm, for example, the thickness of the flexible layer 34 may be 0.05mm or 0.09mm.

To further reduce noise, in some embodiments of the present application, the flexible layer 34 may also be a magnetically containing flexible layer.

Wherein, contain magnetism flexible layer that magnetism flexible layer can be that one or more in resin material, elastic glue, elasticity lacquer mix with the magnetic powder and become. For example, the magnetic powder is put into and mixed in a manufacturing process or a curing process of a resin material, an elastic paste, or an elastic varnish to form the magnetic containing flexible layer.

Or the magnetic flexible layer is formed by bonding a resin layer, an elastic glue layer, wear-resistant cloth or an elastic paint layer with the magnetic layer. The magnetic layer may be a magnetic layer formed by magnetic powder, for example, in this application, a magnetic powder layer is firstly disposed on the inner wall of the assembling groove 321a (321 b) and the lower surface of the convex edge 321d, and then a resin layer, an elastic adhesive layer, a wear-resistant cloth or an elastic paint layer is disposed on the magnetic powder layer.

In the embodiment of the present application, by providing the magnetic flexible layer, the balance bar 33 is mutually adsorbed with the assembly groove 321a (321 b) and the protruding edge 321d, when the key 31 is knocked or resonated, the two ends of the balance bar 33 are always in contact with the assembly groove 321a (321 b) or the protruding edge 321d, so that mutual collision is not likely to occur, and noise caused by collision is avoided.

In this embodiment of the application, when the magnetic powder is distributed in the flexible layer, the volume percentage of the magnetic material in the flexible layer may be 3% to 5%, for example, 3 to 5 parts of the magnetic material may be added to 100 parts of the flexible layer, and it should be noted that, when the flexible layer 34 is made of a resin material, an elastic glue, an elastic paint, or the like, the magnetic material may be added to the resin material, the elastic glue, or the elastic paint according to the volume percentage, and when the flexible layer 34 is a wear-resistant cloth, the magnetic material may be first disposed on the assembly groove 321a (321 b) and the protruding edge 321d, and then the wear-resistant cloth may be disposed on the magnetic material, and in some examples, the magnetic material may also be first disposed on the surface of the wear-resistant cloth, and then the wear-resistant cloth provided with the magnetic material may be disposed on the assembly groove 321a (321 b) and the protruding edge 321 d.

The effects achieved by the flexible layer without and with magnetic powder will be described in the following through several experimental examples.

Experimental example 1

The flexible layer 34 is a resin layer, and the thickness of the resin layer dispensed on the convex edge 321d is 0.03mm. Through tests, in the embodiment of the application, when the resin layer with the thickness of 0.03mm is used in the electronic device 100, the collision noise is reduced by 5dB compared with the traditional case that the flexible layer is not added.

The flexible layer 34 is a magnetic resin-containing layer, for example, a resin material is selected to be polycarbonate, and 3 parts by volume of magnetic powder is mixed into 100 parts by volume of the resin material to obtain a magnetic resin, and the magnetic resin is coated on the convex edge to form a magnetic resin-containing layer with a thickness of 0.03mm. Through testing, in the embodiment of the present application, when the magnetic flexible layer is used in the electronic device 100, the collision noise is reduced by 8dB compared with the conventional case where the flexible layer is not added.

Experimental example two

The flexible layer 34 is made of UV glue, and the UV glue is sprayed on the convex edge 321d to form the flexible layer 34 with the thickness of 0.03mm. Through tests, in the embodiment of the application, when the ultraviolet UV glue with the thickness of 0.03mm is used in the electronic device 100, the collision noise is reduced by 6dB compared with the traditional case that the flexible layer is not added.

The flexible layer 34 is a magnetic glue layer, for example, a UV glue is used, and 3 parts of magnetic powder is mixed into 100 parts of UV glue by volume to obtain the magnetic glue, and the magnetic glue is sprayed on the convex edge 321d to form the magnetic glue layer with a thickness of 0.03mm. Through tests, in the embodiment of the application, when the magnetic glue-containing layer is used in the keys of the electronic device 100, the collision noise is reduced by 10dB compared with the conventional case without adding a flexible layer.

Experimental example III

The flexible layer 34 is made of a silicon film, the thickness of the silicon film is 0.05mm, and the silicon film is arranged on the convex edge 321 d. Through the test, in this application embodiment, when adopting the pellosil of 0.05mm thick to use in electronic equipment 100, with the traditional condition of not increasing the flexible layer, the collision noise reduces 7dB.

The flexible layer 34 is a magnetic silica gel layer, for example, a magnetic silica gel layer having a thickness of 0.05mm is formed by mixing 3 parts of magnetic powder into 100 parts of silica gel by volume, and the magnetic silica gel is disposed on the convex edge 321 d. Through testing, in this application embodiment, when the magnetic silica gel layer was used in electronic equipment 100, compared with the traditional case that does not increase the flexible layer, the collision noise was reduced by 9dB.

Experimental example four

The flexible layer 34 is made of an elastic paint film, the elastic paint film is made of polyurea elastic paint, the thickness of the elastic paint film is 0.05mm, and the elastic paint film is arranged on the convex edge 321 d. Through tests, in the embodiment of the application, when the elastic paint with the thickness of 0.05mm is used in the electronic device 100, the collision noise is reduced by 5dB compared with the traditional condition that the flexible layer is not added.

The flexible layer 34 is a film of a magnetoelastic paint, for example, a magnetoelastic paint obtained by mixing 5 parts by volume of a magnetic powder into 100 parts by volume of an elastic paint (e.g., polyurea elastic paint) provided on the raised edge to form a film of a magnetoelastic paint having a thickness of 0.05mm. Through tests, in the embodiment of the present application, when the magnetoelastic paint film is used in the electronic device 100, the impact noise is reduced by 7dB compared with the conventional case where no flexible layer is added.

Experimental example five

The flexible layer 34 is made of wear-resistant cloth, and the thickness of the wear-resistant cloth is 0.05mm. Through the test, in the embodiment of the application, when the abrasion-resistant cloth with the thickness of 0.05mm is used in the electronic device 100, the collision noise is reduced by 4dB compared with the traditional condition that the flexible layer is not added.

The flexible layer 34 is a magnetic wear-resistant cloth formed by attaching a wear-resistant cloth to a magnetic layer, and a layer of magnetic powder is firstly coated on the outer surfaces of the

hooks

331a and 331b, or on the groove walls of the assembly groove 321a and the assembly groove 321b and the lower surface of the convex edge 321d to form the magnetic layer, and then the magnetic layer is coated with the wear-resistant cloth. Through tests, in the embodiment of the present application, when the abrasion-resistant cloth and the magnetic layer are used in the electronic device 100, the impact noise is reduced by 6dB compared with the conventional case where the flexible layer is not added.

In conclusion, the flexible layer 34 is added, so that collision noise can be reduced, and the purpose of vibration reduction and noise reduction of the keyboard can be achieved. Moreover, on the basis of increasing the flexible layer 34, a magnetic material is added to form a magnetic-containing flexible layer, so that collision noise can be further reduced, and the problem that the noise is larger when the keyboard is used due to collision and resonance of the balance rod and the assembling groove of the keyboard substrate in the use process of the keyboard is solved.

In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, an indirect connection through an intermediate medium, a connection between two elements, or an interaction between two elements. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the embodiments of the application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the embodiments of the present application, and are not limited thereto; although embodiments of the present application have been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An electronic device, characterized in that it comprises at least: the main machine body is rotatably connected with the display screen, and a loudspeaker is arranged in the main machine body;

further comprising: a keyboard device positioned on the main body, the keyboard device comprises a keyboard substrate and a plurality of keys arranged on the keyboard substrate,

each of the keys includes: the key cap and the at least one rebound component are respectively connected with the key cap and the keyboard substrate;

at least some of the plurality of keys further comprise: the balance rod is rotatably connected with the keycap;

the keyboard substrate is provided with at least two opposite assembly side walls, the assembly side walls are provided with assembly grooves, and two ends of the balancing rod are arranged in the assembly grooves in a rotating mode;

2. The electronic device of claim 1, wherein the flexible layer is a magnetically containing flexible layer.

3. The electronic device of any of claims 1-2,

two ends of each balancing rod are provided with hooks which are rotationally connected with the assembling grooves;

the outer surface of the hook is provided with the flexible layer, or

The position where the convex edge is contacted with the hook and the position where the assembling groove is contacted with the hook are provided with the flexible layer.

4. The electronic device of claim 3, wherein the hook has a conical shape, and a large end of the conical shape is fixedly connected to the balance bar.

5. The electronic device of claim 2, wherein the elastic glue comprises an Ultraviolet (UV) glue or a silicone glue;

6. The electronic device of any of claims 1-2, wherein the flexible layer has a thickness between 0.03mm-0.1 mm.

7. The electronic device of any one of claims 1-2, wherein a through slot is disposed on the keyboard substrate at a position close to the assembly slot, and the through slot is communicated with the assembly slot.

8. The electronic device of any of claims 1-2, wherein the electronic device is a laptop computer.

9. The electronic device of any of claims 1-2, wherein the speaker is disposed proximate an outer edge of the keypad apparatus.