Foldable flexible keyboard conductive film

Abstract

The application belongs to the technical field of keyboard conductive film, discloses a foldable flexible keyboard conductive film, and the utility model discloses a first conductive film, the first conductive film top surface is fixedly connected with the circuit board, the first conductive film outside surface is equipped with silica gel connecting layer, the silica gel connecting layer one end is equipped with the second conductive film, the first conductive film outside surface with second conductive film outside surface all are fixedly connected with the protruding silica gel sleeve, the protruding silica gel sleeve outside surface is equipped with the clamping groove, the protruding silica gel sleeve outside is equipped with rigid connecting mechanism;In the application, by setting protruding silica gel sleeve, clamping groove and rigid connecting mechanism, when the second conductive film is folded, the protruding silica gel sleeve avoids the silica gel connecting layer position excessive bending, and when the keyboard conductive film is unfolded and laid flat, the rigid connecting mechanism is inserted into the protruding silica gel sleeve through the insertion of the square tube, to ensure the stability of the keyboard conductive film.

Description

Technical Field

[0001] This utility model relates to the field of keyboard conductive film technology, and in particular to a foldable flexible keyboard conductive film. Background Technology

[0002] The conductive film on a keyboard is a core component of modern membrane keyboards, such as hybrid mechanical-membrane keyboards and laptop keyboards. Its function is to transmit key signals through circuit conduction. It is a key bridge connecting physical key operation and electronic signal processing. Compared with the metal contact structure of traditional mechanical keyboards, conductive films have advantages such as being thin, durable, and low-cost. They are widely used in computers, home appliances, industrial control and other fields. Existing keyboard conductive films are usually foldable and flexible structures.

[0003] CN220753276U discloses a foldable keyboard conductive film, including a first conductive film, a first connecting plate fixedly connected to the right side of the first conductive film, and a second conductive film fixedly connected to the right side of the first connecting plate. When folded, soft limiting pads and limiting strips prevent excessive bending at the bending point.

[0004] However, existing technologies still have the following problems:

[0005] In practical applications, existing foldable flexible keyboard conductive films are laid flat during assembly. However, the stability of these films is generally poor, making it difficult for operators to move them during assembly. Furthermore, when the conductive film is folded, it is difficult to improve stability using magnetic attraction. The magnetic components are also difficult to disassemble and replace in a user-friendly manner, hindering widespread adoption. Utility Model Content

[0006] To address the aforementioned problems, this invention provides a foldable flexible keyboard conductive film.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a foldable flexible keyboard conductive film, comprising a first conductive film, a circuit board fixedly connected to the top surface of the first conductive film, a silicone connecting layer provided on the outer surface of the first conductive film, a second conductive film provided at one end of the silicone connecting layer, protruding silicone sleeves fixedly connected to the outer surfaces of both the first and second conductive films, a slot provided on the outer surface of the protruding silicone sleeve, a rigid connecting mechanism provided on the outer side of the protruding silicone sleeve, the rigid connecting mechanism comprising an inserted square tube located outside the protruding silicone sleeve, a force-bearing rod fixedly connected to the outer surface of the inserted square tube, a storage groove provided on the outer surface of the inserted square tube, a locking rod slidably connected to the inner cavity of the storage groove, a pressure spring provided in the inner cavity of the storage groove, and a magnetic attraction mechanism provided on the back-to-back sides of the two second conductive films, the magnetic attraction mechanism comprising a clamp fixedly connected to the back-to-back sides of the two second conductive films, elastic bands fixedly connected to the top and bottom surfaces of the clamp, and a magnetic strip provided on one side of the clamp.

[0008] Furthermore, one end of the silicone bonding layer is fixedly connected to the second conductive film, and the other end of the silicone bonding layer away from the second conductive film is fixedly connected to the first conductive film.

[0009] By adopting the above technical solution, it is better ensured that the wires connecting the first conductive film and the second conductive film will not be damaged when bent.

[0010] Furthermore, the protruding silicone sleeve has a horizontal cross-section with a U-shaped structure, and the inner surface of the protruding silicone sleeve is slidably connected to the inserted square tube.

[0011] By adopting the above technical solution, the square tube is inserted into the protruding silicone sleeve to limit the position of the rigid connection mechanism.

[0012] Furthermore, the card slot and the card rod are structurally matched, and an arc-shaped head is fixedly connected to one end of the card rod.

[0013] By adopting the above technical solution, the arc-shaped head facilitates insertion into the square tube, and the locking rod slides in the storage groove when inserted into the protruding silicone sleeve.

[0014] Furthermore, one end of the compression spring is fixedly connected to the lever, and the other end of the compression spring away from the lever is fixedly connected to the storage slot.

[0015] By adopting the above technical solution, the pressure spring ensures that the locking rod can be locked in the slot.

[0016] Furthermore, there are two magnetic strips, and each of the two magnetic strips has a groove on its outer surface, the groove matching the size of the elastic hoop structure.

[0017] By adopting the above technical solution, the elastic clamp is locked in the clamp groove, improving the stability of the magnetic strip.

[0018] Furthermore, there are four clamping plates, and the outer surfaces of all four clamping plates are coated with an anti-slip soft layer.

[0019] By adopting the above technical solution, two clamps are used as a set, which better limits the position of the magnetic strip.

[0020] In summary, this utility model has the following beneficial effects:

[0021] 1. In this application, by setting up a protruding silicone sleeve, a slot and a rigid connection mechanism, when the second conductive film is folded, the protruding silicone sleeve avoids excessive bending at the position of the silicone connection layer, and when the keyboard conductive film is unfolded and laid flat, the square tube in the rigid connection mechanism is inserted into the protruding silicone sleeve to ensure the stability of the keyboard conductive film and facilitate the movement and assembly of the keyboard conductive film.

[0022] 2. In this application, by setting a magnetic attraction mechanism, after the two second conductive films are bent, the magnetic strips in the magnetic attraction mechanism can attract each other, thereby improving the stability of the keyboard conductive film after bending. Moreover, the position of the magnetic strips is limited by the elastic band, making it convenient to disassemble and replace the magnetic strips, which is conducive to widespread use. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This utility model Figure 1 Schematic diagram of the structure at point A;

[0025] Figure 3 This is a schematic diagram showing the details of the magnetic attraction mechanism of this utility model;

[0026] Figure 4 This is a structural schematic diagram showing the details of the rigid connection mechanism of this utility model.

[0027] In the diagram: 1. First conductive film; 2. Circuit board; 3. Silicone bonding layer; 4. Second conductive film; 5. Protruding silicone sleeve; 6. Slot; 7. Rigid connection mechanism; 71. Inserted square tube; 72. Force-bearing rod; 73. Storage slot; 74. Locking rod; 75. Compression spring; 76. Arc-shaped head; 8. Magnetic attraction mechanism; 81. Clamping plate; 82. Elastic hoop; 83. Magnetic strip; 84. Hoop groove. Detailed Implementation

[0028] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0029] like Figure 1-4 As shown in the figure, this application discloses a foldable flexible keyboard conductive film, including a first conductive film 1. A circuit board 2 is fixedly connected to the top surface of the first conductive film 1. After the circuit board 2 is inserted into the required position, the keyboard conductive film can be assembled and used normally. A silicone connecting layer 3 is provided on the outer surface of the first conductive film 1. One end of the silicone connecting layer 3 is fixedly connected to a second conductive film 4, and the other end of the silicone connecting layer 3 away from the second conductive film 4 is fixedly connected to the first conductive film 1. The first conductive film 1 and the second conductive film 4 are connected through the silicone connecting layer 3. The wire connecting the first conductive film 1 and the second conductive film 4 is located in the inner cavity of the silicone connecting layer 3. The second conductive film 4 is provided at one end of the silicone connecting layer 3.

[0030] Both the outer surface of the first conductive film 1 and the outer surface of the second conductive film 4 are fixedly connected to protruding silicone sleeves 5. The horizontal cross-section of the protruding silicone sleeves 5 is U-shaped. The inner surface of the protruding silicone sleeves 5 is slidably connected to the inserted square tube 71. The inserted square tube 71 in the rigid connection mechanism 7 on the outer side of the protruding silicone sleeves 5 is inserted into the protruding silicone sleeves 5. At this time, the outer surface of the inserted square tube 71 is slidably connected to the inner surface of the protruding silicone sleeves 5. A slot 6 is opened on the outer surface of the protruding silicone sleeves 5. A rigid connection mechanism 7 is provided on the outer side of the protruding silicone sleeves 5. The rigid connection mechanism 7 includes the inserted square tube 71 located on the outer side of the protruding silicone sleeves 5. A force-bearing rod 72 is fixedly connected to the outer surface of the inserted square tube 71. A storage groove 73 is opened on the outer surface of the inserted square tube 71. A locking rod 74 is slidably connected to the inner cavity of the storage groove 73. The slot 6 and the locking rod 74 are structurally and dimensionally matched. An arc-shaped head 76 is fixedly connected to one end of the locking rod 74 for storage. The inner cavity of the groove 73 is provided with a compression spring 75. One end of the compression spring 75 is fixedly connected to the locking rod 74, and the other end of the compression spring 75 away from the locking rod 74 is fixedly connected to the storage groove 73. During the process of inserting the square tube 71 into the protruding silicone sleeve 5, the locking rod 74, which is slidably connected in the inner cavity of the storage groove 73, will be squeezed by the protruding silicone sleeve 5. The locking rod 74 will retract into the storage groove 73. At this time, the compression spring 75 is compressed. One end of the compression spring 75 is fixedly connected to the locking rod 74, and the other end is fixedly connected to the storage groove 73. When the square tube 71 is inserted into the appropriate position, so that the locking rod 74 is aligned with the slot 6 opened on the outer surface of the protruding silicone sleeve 5, since the slot 6 and the locking rod 74 are structurally matched, and one end of the locking rod 74 is fixedly connected to the arc-shaped head 76, under the elastic force of the compression spring 75, the locking rod 74 will smoothly lock into the slot 6, thereby realizing the stable connection between the rigid connection mechanism 7 and the protruding silicone sleeve 5.

[0031] Two second conductive films 4 are provided with magnetic attraction mechanisms 8 on opposite sides. The magnetic attraction mechanism 8 includes four clamping plates 81 fixedly connected to the opposite sides of the two second conductive films 4. The outer surfaces of the four clamping plates 81 are coated with an anti-slip soft layer, which is a rubber elastic soft layer, to better limit the position of the magnetic strips 83. The top and bottom surfaces of the clamping plates 81 are fixedly connected with elastic bands 82. Two magnetic strips 83 are provided on one side of the clamping plates 81. The outer surfaces of the two magnetic strips 83 are provided with band grooves 84. The band grooves 84 match the structural dimensions of the elastic bands 82. If the magnetic strips 83 are damaged or need to be replaced, the user can easily disassemble and replace the magnetic strips 83 due to the matching design of the elastic bands 82 and the band grooves 84, reducing maintenance costs.

[0032] The working principle of the foldable flexible keyboard conductive film in this embodiment is as follows: When the foldable flexible keyboard conductive film needs to be folded, since the first conductive film 1 and the second conductive film 4 are connected by the silicone connecting layer 3, during the folding process, the protruding silicone sleeve 5, which is fixedly connected to the outer surface of the first conductive film 1 and the outer surface of the second conductive film 4, begins to play its role. The horizontal cross-section of the protruding silicone sleeve 5 is a U-shaped structure, which can guide the folding action, prevent the silicone connecting layer 3 from being excessively bent, protect the silicone connecting layer 3 from damage, and prevent cracks or breaks from appearing inside the silicone connecting layer 3 due to excessive bending.

[0033] Furthermore, after the two second conductive films 4 have been bent, it is necessary to fix the bent state. At this time, the magnetic attraction mechanism 8 set on the back side of the two second conductive films 4 begins to play its role. The magnetic attraction mechanism 8 is provided with a magnetic strip 83 on one side of the clamping plate 81 fixedly connected to the back side of the two second conductive films 4. The two magnetic strips 83 will attract each other, thereby improving the stability of the keyboard conductive film after bending and preventing it from automatically unfolding or spreading out.

[0034] Furthermore, when the folded keyboard conductive film needs to be unfolded and laid flat for use, the square tube 71 of the rigid connecting mechanism 7 protruding from the outside of the silicone sleeve 5 is inserted into the protruding silicone sleeve 5. During the insertion of the square tube 71, the sliding connecting rod 74 in the inner cavity of the storage groove 73 will be squeezed by the protruding silicone sleeve 5. The rod 74 retracts into the storage groove 73. At this time, the pressure spring 75 is compressed, the pressure spring 75 deforms, and elastic force is generated.

[0035] Furthermore, when the square tube 71 is inserted into the appropriate position so that the locking rod 74 is aligned with the slot 6 opened on the outer surface of the protruding silicone sleeve 5, since the slot 6 and the locking rod 74 are structurally matched and one end of the locking rod 74 is fixedly connected to the arc-shaped head 76, under the elastic force of the compression spring 75, the locking rod 74 will smoothly lock into the slot 6, thereby realizing the stable connection between the rigid connection mechanism 7 and the protruding silicone sleeve 5, and ensuring the stability of the keyboard conductive film in the unfolded and flat state;

[0036] Furthermore, the magnetic strip 83 is positioned by elastic clamps 82 that are fixedly connected to both the top and bottom surfaces of the clamp 81. Since the outer surfaces of both magnetic strips 83 are provided with clamp grooves 84, and the clamp grooves 84 match the structural dimensions of the elastic clamps 82, the elastic clamps 82 can be inserted into the clamp grooves 84 to better fix the position of the magnetic strips 83. Moreover, when the magnetic strips 83 are damaged or need to be replaced, the user can easily disassemble and replace the magnetic strips 83 due to the cooperative design of the elastic clamps 82 and the clamp grooves 84.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A foldable flexible keyboard conductive film, comprising a first conductive film (1), characterized in that: A circuit board (2) is fixedly connected to the top surface of the first conductive film (1). A silicone bonding layer (3) is provided on the outer surface of the first conductive film (1). A second conductive film (4) is provided at one end of the silicone bonding layer (3). A protruding silicone sleeve (5) is fixedly connected to both the outer surface of the first conductive film (1) and the outer surface of the second conductive film (4). A slot (6) is provided on the outer surface of the protruding silicone sleeve (5). A rigid connection mechanism (7) is provided on the outer side of the protruding silicone sleeve (5). The rigid connection mechanism (7) includes an inserting square tube (71) located on the outer side of the protruding silicone sleeve (5). 71) A force-bearing rod (72) is fixedly connected to the outer surface. A storage groove (73) is opened on the outer surface of the inserted square tube (71). A locking rod (74) is slidably connected to the inner cavity of the storage groove (73). A pressure spring (75) is provided in the inner cavity of the storage groove (73). A magnetic attraction mechanism (8) is provided on the back side of the two second conductive films (4). The magnetic attraction mechanism (8) includes a clamp (81) fixedly connected to the back side of the two second conductive films (4). An elastic hoop (82) is fixedly connected to the top and bottom surfaces of the clamp (81). A magnetic strip (83) is provided on one side of the clamp (81).

2. The foldable flexible keyboard conductive film according to claim 1, characterized in that: One end of the silicone bonding layer (3) is fixedly connected to the second conductive film (4), and the other end of the silicone bonding layer (3) away from the second conductive film (4) is fixedly connected to the first conductive film (1).

3. The foldable flexible keyboard conductive film according to claim 1, characterized in that: The protruding silicone sleeve (5) has a U-shaped structure in its horizontal cross section, and the inner surface of the protruding silicone sleeve (5) is slidably connected to the inserted square tube (71).

4. The foldable flexible keyboard conductive film according to claim 1, characterized in that: The card slot (6) matches the structural dimensions of the card rod (74), and an arc-shaped head (76) is fixedly connected to one end of the card rod (74).

5. The foldable flexible keyboard conductive film according to claim 1, characterized in that: One end of the compression spring (75) is fixedly connected to the lever (74), and the other end of the compression spring (75) away from the lever (74) is fixedly connected to the storage slot (73).

6. The foldable flexible keyboard conductive film according to claim 1, characterized in that: There are two magnetic strips (83), and the outer surfaces of the two magnetic strips (83) are provided with grooves (84), which are matched with the structural dimensions of the elastic band (82).

7. The foldable flexible keyboard conductive film according to claim 1, characterized in that: The number of clamps (81) is four, and the outer surface of each of the four clamps (81) is coated with an anti-slip soft layer.

Images