CN211350441U - Conductive film and keyboard - Google Patents

Abstract

The application discloses a conductive film and a keyboard; a conductive film comprises a first outer film, a second outer film, a first conductor, a second conductor and a spacer, wherein the first conductor is arranged on the surface of the first outer film facing the second outer film; the second conductor is arranged on the surface of the second outer film facing the first outer film and faces the first conductor; the spacer is arranged between the first outer membrane and the second outer membrane, the first outer membrane is subjected to an external force smaller than a threshold value, and the first electric conductor and the second electric conductor are spaced; the first outer membrane is subjected to an external force larger than the threshold value, and the first conductor is contacted with the second conductor; wherein, the edge of the first outer membrane and the edge of the second outer membrane are connected in a sealing way to form an isolation space, and the first conductor, the second conductor and the spacing body are positioned in the isolation space.

Description

Conductive film and keyboard

Technical Field

The present application relates to the field of electronic devices, and more particularly, to a conductive film and a keyboard.

Background

Computer equipment has become the essential tool in life and official working now, and the use example of keyboard under special condition is as follows rainy day, but present keyboard can't realize water-proof effects, appears adjacent button control in disorder easily, influences the problem of operation effect.

Many designers use waterproof glue on the keyboard conductive film, but the waterproof grade difference cannot realize the effect of soaking water for a long time, and meanwhile, the conductive films between adjacent keys are hollowed out, so that the problem of water seepage still exists; in some conductive films, a hydrophobic coating is applied to the outside, but the coating uniformity of the upper and lower surfaces of the conductive film relative to the side surface cannot be guaranteed, and the coating is easy to fall off.

SUMMERY OF THE UTILITY MODEL

In view of this, the present application provides a conductive film and a keyboard to solve the problem of poor waterproof effect of the keyboard.

In order to achieve the above purpose, the present application mainly provides the following technical solutions:

in one aspect, embodiments of the present application provide a conductive film, including:

a first outer membrane;

a second outer membrane;

a first conductive body provided on a surface of the first outer film facing the second outer film;

a second conductor disposed on a surface of the second outer film facing the first outer film, and facing the first conductor;

a spacer disposed between the first outer membrane and the second outer membrane, the first outer membrane being subjected to an external force less than a threshold, the first and second electrical conductors being spaced apart; the first outer membrane is subjected to an external force larger than the threshold value, and the first conductor is contacted with the second conductor;

wherein, the edge of the first outer membrane and the edge of the second outer membrane are connected in a sealing way to form an isolation space, and the first conductor, the second conductor and the spacing body are positioned in the isolation space.

Optionally, the conductive film of the foregoing, wherein the spacer is a first distance from the first outer film edge and the spacer is a second distance from the second outer film edge;

wherein a sum of the first distance and the second distance is greater than a height of the spacer between the first outer membrane and the second outer membrane.

Optionally, the conductive film, wherein the spacer comprises a first spacer and a second spacer;

the first spacer is disposed around the first electrical conductor;

the second spacer is disposed around the second conductor.

Optionally, the conductive film of the foregoing, wherein the spacer further comprises a spacer;

the first spacer, the spacer, and the second spacer are stacked to form isolation between the first conductor and the second conductor.

Optionally, in the conductive film, the first outer film has a first electronic component, and the first electronic component is connected to the first conductor;

the second outer film is provided with a second electronic component which is connected with the second electric conductor;

wherein the first electronic component and the second electronic component are within the isolation space.

Optionally, in the conductive film, a plurality of first conductors are arranged in an array on the first outer film to form a first conductor array;

a plurality of second conductors are arranged on the second outer film in an array mode to form a second conductor array;

wherein the spacers are arranged around each first conductor and each second conductor; or

The first conductor array and the second conductor array are provided with the spacers around the peripheries.

Optionally, in the conductive film, a plurality of first conductors are arranged in an array on the first outer film to form a first conductor array;

a plurality of second conductors are arranged on the second outer film in an array mode to form a second conductor array;

wherein the isolated space contains one of the first and second conductors; or the first and second arrays of electrical conductors are contained within the isolated space.

In another aspect, the present application provides a keyboard, which includes at least one key, where the key includes:

a base;

the conductive film is arranged on the base, and the second outer film is arranged towards the base;

the elastic supporting piece is arranged on one side, away from the second outer membrane, of the first outer membrane of the conductive membrane and used for transmitting external force;

a keycap; the keycap is arranged on one side, away from the conductive film, of the elastic support piece and used for obtaining external force;

and when the external force is larger than a threshold value, the first conductor and the second conductor in the conductive film are contacted to form an electric signal.

Optionally, the case of the foregoing, wherein the elastic support comprises an elastic member and a support member;

the supporting piece is arranged between the conductive film and the keycap at the position corresponding to the first conductive body and the second conductive body and used for transmitting external force;

the elastic piece comprises two I-shaped structures which are arranged in a crossed mode and used for stably supporting the keycap and providing rebound force.

In another aspect, the present application provides a keyboard comprising at least two keys, the at least two keys comprising:

any of the conductive films described above.

By means of the technical scheme, the conductive film and the keyboard at least have the following advantages: in order to solve the problem of poor waterproof effect of the keyboard, the edges of the first outer membrane and the second outer membrane in the conductive membrane are hermetically connected to form the isolation space, the first conductor, the spacing body and the second conductor are all located in the isolation space, and water cannot enter the isolation space, so that the conductor and the second conductor in the spacing space can be kept to be permanently disconnected and generated with normal conductance signals, and wrong conductance signals can be generated by mistake.

The foregoing description is only an overview of the technical solutions of the present application, and in order to make the technical solutions of the present application more clear and clear, and to implement the technical solutions according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present application and the accompanying drawings.

Drawings

Fig. 1 is a schematic structural diagram of a conductive film provided in an embodiment of the present application;

fig. 2 is a schematic structural diagram of another conductive film provided in an embodiment of the present application;

fig. 3 is a schematic view of another structure of a conductive film provided in an embodiment of the present application;

fig. 4 is a schematic structural diagram of a conductive film according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of a key provided in an embodiment of the present application;

fig. 6 is a schematic structural diagram of a keyboard according to an embodiment of the present application.

Detailed Description

To further explain the technical means and effects of the present invention adopted to achieve the intended purpose of the present invention, the following detailed description is given to a conductive film and a keyboard according to the present invention with reference to the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Example 1

Referring to fig. 1, an embodiment of the present application provides a conductive film 13, which includes: a first outer film 1, a second outer film 2, a first conductor 3, a second conductor 4 and a spacing body 5; the first conductor 2 is arranged on the surface of the first outer film 1 facing the second outer film 2; the second conductor 4 is arranged on the surface of the second outer film 2 facing the first outer film 1 and facing the first conductor 3; the spacer 4 is arranged between the first outer membrane 1 and the second outer membrane 2, the first outer membrane 1 is subjected to an external force less than a threshold value, and the first conductor 3 and the second conductor 4 are spaced; the first outer film 1 is subjected to an external force larger than the threshold value, and the first conductor 3 is contacted with the second conductor 4;

wherein, the edge of the first outer film 1 and the edge of the second outer film 3 are hermetically connected to form an isolated space 6, and the first conductor 3, the second conductor 4 and the spacing body 5 are positioned in the isolated space 6.

Specifically, in order to solve the problem of poor waterproof effect of the scissor-foot keyboard, the present application provides a conductive film 13, which includes the first outer film 1, the second outer film 2, the first conductive body 3, the second conductive body 4, and the spacer 5; which forms the interval space 6 by hermetically connecting the edges of the first and second exterior films 1 and 2, the first conductor 3, the second conductor 4 and the spacer 5 are all located in the separation space 6, and the first conductor 3 is arranged on the first outer film 1, the second conductor 2 is arranged on the second outer film 2, in the embodiment of the application, the first conductor 3 and the second conductor 2 are positioned in the middle of the interval space 6, the spacer 5 supports the first outer membrane 1 and the second outer membrane 2 at the circumferential edge of the spacing space 6, so as to ensure that the first conductor 3 and the second conductor 4 are spaced apart and do not contact with each other when no external force is applied to the first outer membrane 1 or the external force is smaller than a threshold value, i.e. no conductive signal is generated; on the contrary, when the external force is greater than the threshold value, the first conductor 3 moves or dents downwards from the first outer film 1 and then contacts with the second conductor 4, so as to generate a conductance signal, and no matter whether the conductance signal is generated, the edges of the first outer film 1 and the second outer film 2 are hermetically connected, water cannot enter, so that the situation that the one conductor 1 and the second conductor 2 in the interval space 6 can permanently keep the generation and disconnection of a normal conductance signal and generate an error conductance signal by mistake is ensured; the first outer membrane 1 and the second outer membrane 2 are membrane layers with waterproof functions, and are preferably polyethylene terephthalate (PET) membrane layers, and the thickness of the membrane layers is 0.1 mm; the first conductor 3 and the second conductor 4 also need to be arranged in the form of a film layer, so that it is preferably arranged as a conductive silver paste layer in the embodiment of the present application; the spacer 5 also needs to be disposed in the form of a film layer, and it needs to have the functions of supporting, waterproofing and bonding, and can be bonded to the first outer film 1 and the second outer film 2, and can also have the effect of further waterproofing, so that the spacer 5 is preferably disposed in the embodiment of the present application in a manner that a waterproof film layer and an adhesive film layer are stacked, and the specific disposition manner will be described in detail below.

According to the above list, the conductive film 13, the key and the keyboard of the present application have at least the following advantages: the edges of the first outer membrane 1 and the second outer membrane 2 in the conductive film 13 are hermetically connected to form the isolation space 6, the first conductor 3, the spacer 5 and the second conductor 4 are all located in the isolation space 6, so that water cannot enter, and the first conductor 1 and the second conductor 2 in the isolation space 6 can be ensured to permanently keep the generation and disconnection of normal conductance signals, and mistaken conductance signals can be generated; meanwhile, the conductive film 13 is used in subsequent keys or keyboards, and the edge sealing can effectively isolate water molecules from contacting with the first conductor 3 and the second conductor 4, so that the water molecules are prevented from permeating, and the water impact resistance and the waterproof effect of the conductive film 13, the keys and the keyboards are improved; the notice of guaranteeing the button hand feeling guarantees waterproofness, and user comfort is greatly improved.

Further, the embodiment of the present application provides a conductive film 13, in a specific implementation, the spacer 5 is a first distance from the first outer film edge 1, and the spacer 5 is a second distance from the second outer film edge 2;

wherein the sum of the first distance and the second distance is greater than the height of the spacer 5 between the first outer membrane 1 and the second outer membrane 2.

Specifically, in order to realize the edge sealing connection of the first outer membrane 1 and the second outer membrane 2, in the technical scheme adopted by the application, the first outer membrane 1 and the second outer membrane 2 are designed to be large, and the respective circumferential edges of the first outer membrane 1 and the second outer membrane 2 must exceed the outer edge of the spacer 5; meanwhile, in order to prevent the risk that the film layer is easy to rebound or break after being folded in half, the sum of the distances between the edges of the first outer film 1 and the second outer film 2, which exceed the outer edge of the spacing body 5, is set to be greater than the height of the spacing body 5, so that the first outer film 1 and the second outer film 2 are not easy to rebound when being connected in a bending manner; furthermore, the connection mode adopted in the embodiment of the application is a sintering mode, that is, the edges of the first outer membrane 1 and the second outer membrane 2 are melted at a high temperature and then connected together, and the sintering point a is on the whole circumferential side surface of the conductive film 13, so that the method of bending the membrane layer is avoided, the occurrence of rebound or fracture is fundamentally avoided, and the service life of the conductive film 13 is ensured.

Further, referring to fig. 1, in an embodiment of the present application, a conductive film 13 is provided, and in a specific implementation, the spacer 5 includes a first spacer 51, a second spacer 52, and a spacer 53;

the first spacer 51 is disposed around the first conductor 3;

the second spacer 52 is provided around the second conductor 4;

the first spacer 51, the spacer 53, and the second spacer 52 are stacked to form a separation between the first conductor 3 and the second conductor 4.

Specifically, in order to realize that the spacer 5 has functions of supporting, waterproofing and bonding at the same time, in the technical scheme adopted in the present application, the spacer 5 is sequentially stacked from the first outer film 1 to the second outer film 2 to form the first spacer 51, the spacer 53 and the second spacer 52, wherein the first spacer 51 is disposed around the first conductor 3, the second spacer 52 is disposed around the second conductor 4, and a hollow portion is formed between the first conductor 3 and the second conductor 4, because the generation and disconnection of the electrical signal between the first conductor 3 and the second conductor 4 require the contact and the separation between the two, the hollow portion provides a space for the contact and the separation between the two; the corresponding spacer 53 is also arranged around the hollow part between the first spacer 51 and the second spacer 52; wherein the first spacing body 51 and the second spacing body 52 need to be adhered to the first outer membrane 1 and the second outer membrane 2, and in the embodiment of the present application, the first spacing body and the second spacing body are preferably provided with waterproof glue coatings, so that both adhesion and waterproof functions can be achieved; the spacer 53 needs to have a certain supporting function between the first spacer 51 and the second spacer 52, and has a better waterproof function, so that water can be prevented from entering into a gap between the adhesive layers, and therefore, it is preferably configured as a polyethylene terephthalate (PET) film layer identical to the first outer film 1 and the second outer film 2 in the embodiment of the present invention.

Further, referring to fig. 1, in a specific implementation of a conductive film 13 provided in an embodiment of the present application, the first outer film 1 has a first electronic component 7, and the first electronic component 7 is connected to the first conductive body 3; the second outer film 2 is provided with a second electronic component 8, and the second electronic component 8 is connected with the second electric conductor 4; wherein the first electronic component 7 and the second electronic component 8 are located within the isolation space 6.

Specifically, in order to ensure that the first conductive body 3 and the second conductive body 4 generate a conductance signal when contacting, in the technical solution adopted in the present application, the first electronic component 7 and the second electronic component 8 are disposed in the isolated space 6, where the isolated space 6 refers to a space between the outer surface of the first outer film 1 and the outer surface of the second outer film 2, and includes the respective thicknesses of the first outer film 1 and the second outer film 2; it can be understood that the first electronic component 7 is disposed in the first outer film 1, and the second electronic component 8 is disposed in the second outer film 2, wherein the first electronic component 7 and the second electronic component 8 are circuit boards or circuit structures capable of conducting an electric circuit to generate an electric signal when the first conductor 3 and the second conductor 4 are in contact.

Example 2

Referring to fig. 2, in a specific implementation of a conductive film 13 provided in the embodiment of the present application, a plurality of first conductors 3 are arranged in an array on the first outer film 1, so as to form a first conductor array; a plurality of second electric conductors 4 are arranged on the second outer film 2 in an array manner to form a second electric conductor array; wherein the spacer 5 is provided around each of the first electrical conductors 3 and each of the second electrical conductors 4; or the first conductor array and the second conductor array are provided with the spacing bodies 5 around the peripheries.

Specifically, a plurality of groups of first electric conductors 3 and second electric conductors 4, which correspond to each other, are arranged in the isolation space 6 surrounded by the first outer membrane 1 and the second outer membrane 2, and in order to ensure a waterproof effect, the spacers 5 (as shown in fig. 2) may be respectively arranged around each group of the first electric conductors 3 and the second electric conductors 4, or the spacers (as shown in fig. 3) may be arranged on the whole peripheries of the first electric conductor array and the second electric conductor array; and then the spacing body 5 can realize that not only one place can produce the conductance signal when the first outer membrane 1 is subjected to an external force greater than a threshold value, but also can realize that a plurality of places can produce the conductance signal.

Example 3

Referring to fig. 3, in a specific implementation, a plurality of first conductors 3 are arranged in an array on the first outer film 1 to form a first conductor array; a plurality of second electric conductors 4 are arranged on the second outer film 2 in an array manner to form a second electric conductor array; wherein, the isolated space 6 comprises one first conductor 3 and one second conductor 4; or the first and second arrays of electrical conductors are contained within the isolated space 6.

Specifically, in the isolated space 6 surrounded by the first outer membrane 1 and the second outer membrane 2, a plurality of groups of first conductors 3 and second conductors 4 corresponding to each other are provided, and in order to ensure a waterproof effect, each group of corresponding first conductors 3 and second conductors 4 may be provided in a single separated space 6 surrounded by the first outer membrane 1 and the second outer membrane 2 (as shown in fig. 4), or the corresponding first conductor array and second conductor array may be integrally provided in a larger separated space 6 surrounded by the first outer membrane 1 and the second outer membrane 2 (as shown in fig. 3), and further, the spacer 5 may enable not only one place to generate a conductance signal, but also multiple places to generate a conductance signal when the first outer membrane 1 is subjected to an external force greater than a threshold value.

Example 4

Further, referring to fig. 5, in a specific implementation, the keyboard provided in the embodiment of the present application includes at least one key, where the at least one key includes a base 9, the conductive film 13 in any one of embodiments 1 to 3, an elastic supporting member, and a key cap 12, the conductive film 13 is disposed on the base 9, and the second outer film 2 is disposed toward the base 9; the elastic supporting piece is arranged on one side, away from the second outer membrane 2, of the first outer membrane 1 of the conductive film 13 and used for transmitting external force; the keycap 12 is arranged on one side of the elastic support part, which is far away from the conductive film 13, and is used for obtaining external force; wherein, the external force is larger than the threshold value, and the first conductor 3 and the second conductor 4 in the conductive film 13 are contacted to form an electric signal.

Particularly, computer equipment has become a necessary tool for daily life and office work, and people mostly use a scissor-foot keyboard to relieve fatigue caused by long-time keyboard knocking through better pressing hand feeling; the keyboard is used in the following rainy days under special conditions, but the conventional scissor-foot keyboard cannot achieve a waterproof effect, and the problems of disordered control of adjacent keys and influence on an operation effect are easily caused, in the technical scheme adopted by the application, the base 9 serving as a containing carrier is arranged below the second outer membrane 2 in the conductive membrane 13, and the elastic supporting piece and the keycap 12 are sequentially and upwards arranged on the first outer membrane 1; when an external force, i.e. a force applied by a finger of a user, acts on the key cap 12, the external force is transmitted to the conductive film 13, especially the first outer film 1 therein, the first conductive body 3 is pressed or recessed along with the first outer film 1 to contact with the second conductive body 4 under the action of the external force exceeding the threshold value, so as to conduct the first electronic component 7 and the second electronic component 8, thereby generating an electrical signal, and after the external force is removed by the user, the key cap 12 will be sprung up under the action of the elastic support to return to the original position, thereby disconnecting the electrical signal connection between the first electronic component 7 and the second electronic component 8.

According to the above list, the conductive film 13 is used in the keyboard, and the edge sealing can effectively isolate water molecules from contacting with the first conductor 3 and the second conductor 4, so that the water molecules are prevented from permeating, and the water impact resistance and the waterproof effect of the conductive film 13 and the keyboard are improved; the notice of guaranteeing the button hand feeling guarantees waterproofness, and user comfort is greatly improved.

Further, referring to fig. 5, in an embodiment of the present application, in a specific implementation, the elastic supporting member includes an elastic member 10 and a supporting member 11; the support 11 is arranged between the conductive film 13 and the keycap 12 corresponding to the positions of the first conductor 3 and the second conductor 4 and is used for transmitting external force; the elastic member 10 includes two I-shaped structures 101 arranged crosswise for stably supporting the keycap 12 and providing a rebound force.

Specifically, in order to ensure the comfort of the user, in the technical scheme adopted in the present application, the keys are configured as scissor-foot keys, and it can be understood that the above embodiments 1 to 3 are all configured for the conductive film 13 in the scissor-foot keyboard; the supporting member 11 is integrally of a cylindrical structure, the upper end of the supporting member is connected to the keycap 3, and the lower end of the supporting member is connected to the outer surface of the first outer membrane 1 at a position corresponding to the first conductor 3, in this embodiment, the supporting member is preferably made of a silica gel material; the elastic member 10 is formed by two i-shaped structures 101 which are arranged in a crossed manner, the middle parts of the two i-shaped structures are hinged in a relative rotating manner, and two ends of the two i-shaped structures respectively abut against four corners of the keycap 12 and the outer surface of the first outer membrane 1 corresponding to the four corners of the first conductor 3, so that uniform and stable support is provided for the keycap 12 to press down and rebound.

Example 5

Referring to fig. 6, an embodiment of the present application provides a keyboard including at least two keys, where the at least two keys include the conductive film 13 according to any one of embodiments 2.3.

The foregoing is a preferred embodiment of the present application, which is not intended to be limiting in any way, and any simple modifications, equivalent variations and modifications made to the foregoing embodiment according to the technical spirit of the present application are within the scope of the present application.

Claims (10)

1. A conductive film, comprising:

a first outer membrane;

a second outer membrane;

a first conductive body provided on a surface of the first outer film facing the second outer film;

a second conductor disposed on a surface of the second outer film facing the first outer film, and facing the first conductor;

a spacer disposed between the first outer membrane and the second outer membrane, the first outer membrane being subjected to an external force less than a threshold, the first and second electrical conductors being spaced apart; the first outer membrane is subjected to an external force larger than the threshold value, and the first conductor is contacted with the second conductor;

the edge of the first outer membrane is hermetically connected with the edge of the second outer membrane to form an isolation space, and the first conductor, the second conductor and the spacer are positioned in the isolation space.

2. A conductive film according to claim 1, wherein the conductive film,

the spacer is a first distance from the first outer film edge, the spacer is a second distance from the second outer film edge;

wherein a sum of the first distance and the second distance is greater than a height of the spacer between the first outer membrane and the second outer membrane.

3. A conductive film according to claim 2, wherein the conductive film,

the spacer comprises a first spacer and a second spacer;

the first spacer is disposed around the first electrical conductor;

the second spacer is disposed around the second conductor.

4. A conductive film according to claim 3, wherein the conductive film,

the spacer further comprises a spacer;

the first spacer, the spacer, and the second spacer are stacked to form isolation between the first conductor and the second conductor.

5. A conductive film according to claim 1, wherein the conductive film,

the first outer film is provided with a first electronic component which is connected with the first electric conductor;

the second outer film is provided with a second electronic component which is connected with the second electric conductor;

wherein the first electronic component and the second electronic component are within the isolation space.

6. A conductive film according to claim 1, wherein the conductive film,

a plurality of first conductors are arranged on the first outer film in an array mode to form a first conductor array;

a plurality of second conductors are arranged on the second outer film in an array mode to form a second conductor array;

wherein the spacers are arranged around each of the first and second electrical conductors; or

The first conductor array and the second conductor array are provided with the spacers around.

7. A conductive film according to claim 1, wherein the conductive film,

a plurality of first conductors are arranged on the first outer film in an array mode to form a first conductor array;

a plurality of second conductors are arranged on the second outer film in an array mode to form a second conductor array;

wherein the isolated space contains one of the first and second conductors; or

The isolation space contains the first and second arrays of electrical conductors.

8. A keyboard comprising at least one key, said key comprising:

a base;

the conductive film of any of claims 1-5, disposed on the base with a second outer film disposed toward the base;

the elastic supporting piece is arranged on one side, away from the second outer membrane, of the first outer membrane of the conductive membrane and used for transmitting external force;

a keycap; the keycap is arranged on one side, away from the conductive film, of the elastic support piece and used for obtaining external force;

and when the external force is larger than a threshold value, the first conductor and the second conductor in the conductive film are contacted to form an electric signal.

9. The keyboard as claimed in claim 8, wherein,

the elastic supporting part comprises an elastic part and a supporting part;

the supporting piece is arranged between the conductive film and the keycap at the position corresponding to the first conductive body and the second conductive body and used for transmitting external force;

the elastic piece comprises two I-shaped structures which are arranged in a crossed mode and used for stably supporting the keycap and providing rebound force.

10. A keyboard comprising at least two keys, the at least two keys comprising:

the conductive film according to any one of claims 6 and 7.

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