CN218447659U

CN218447659U - Novel membrane switch connection structure

Info

Publication number: CN218447659U
Application number: CN202222375565.0U
Authority: CN
Inventors: 李小丽; 徐方胜; 王旭; 张蓉
Original assignee: Chongqing Kaicheng Science & Technology Co ltd
Current assignee: Chongqing Kaicheng Technology Co ltd
Priority date: 2022-09-07
Filing date: 2022-09-07
Publication date: 2023-02-03
Anticipated expiration: 2032-09-07

Abstract

The utility model relates to a novel membrane switch connecting structure, which comprises a first substrate, a middle insulating layer substrate and a second substrate; the outer side of the first substrate is printed with two first conductive circuits arranged at intervals, the inner side of the first substrate is printed with two second conductive circuits arranged at intervals, the back of the first substrate is also printed with first conductive PADs and second conductive PADs arranged at intervals, the first conductive PADs and the second conductive PADs are respectively communicated with the second conductive circuits, through holes are formed in the first substrate, conductive ink is filled in the through holes, the through holes are just opposite to the first conductive PADs and the first conductive PADs, the second conductive PADs are arranged on the second conductive PADs, the second substrate is printed with third conductive PADs just opposite to the first substrate, the third conductive PADs are just opposite to the first conductive PADs and the second conductive PADs, and the middle insulating layer substrate is arranged between the first substrate and the second substrate and is provided with a stepping hole just opposite to the third conductive PADs. The device has the advantages of simple structure, design time saving and faster product input.

Description

Novel membrane switch connection structure

Technical Field

The utility model relates to a membrane switch technical field especially relates to a novel membrane switch connection structure.

Background

The structure of the thin film switch is shown in figure 1 of the attached drawings of the specification, and the structure of the thin film switch comprises an upper layer substrate 1-1, an upper layer conductive PAD 1-2, a middle insulating layer substrate 1-3, a lower layer conductive PAD 1-4 and a lower layer substrate 1-5. However, in the keyboard design, as the keyboard is thinner and thinner according to the market demand, the space left for the membrane switch is smaller and smaller, and the position and the direction of the membrane switch and the computer connector are required to be changed continuously. Each time the direction of the membrane switch is changed, the circuit of the membrane switch needs to be completely redesigned, and a large amount of design time is consumed, so that the production period is prolonged.

Disclosure of Invention

To the not enough of above-mentioned prior art, the technical problem that this patent application will solve provides a simple structure, saves design time, makes the faster novel membrane switch connection structure who puts into production of product.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a novel membrane switch connecting structure comprises a first substrate, a middle insulating layer substrate and a second substrate; the outside printing of first substrate has the first conducting wire of two intervals settings, the inboard printing of first substrate has the second conducting wire of two intervals settings, the back of first substrate still prints the electrically conductive PAD of first electrically conductive PAD and second that the interval set up, the electrically conductive PAD of first electrically conductive PAD and second communicates with the second conducting wire respectively, be provided with the through-hole on the first substrate, fill electrically conductive printing ink in the through-hole, the through-hole just sets up to first wire circuit and first electrically conductive PAD, the electrically conductive PAD of second conducting wire and second, the second substrate just has the electrically conductive PAD of third to first substrate printing, the electrically conductive PAD of third just sets up to first electrically conductive PAD and second electrically conductive PAD, middle insulating layer substrate sets up between first substrate and second substrate and just is provided with the hole of stepping down to the electrically conductive PAD of third.

Specifically, an insulating ink protective layer is arranged on the outer side of the first base material, and the first lead line is located between the insulating ink protective layer and the first base material.

Specifically, the through holes are at least provided with 2 through holes respectively facing the first conductive PAD and the second conductive PAD.

Specifically, the first substrate, the intermediate insulating layer substrate and the second substrate are all PET substrates.

To sum up, the utility model discloses, through being provided with the through-hole and filling the mode of electrically conductive printing ink for first conducting wire, second conducting wire, first electrically conductive PAD, the electrically conductive PAD of second switch on. The problem of the change of the contact direction of the membrane switch is solved, and the circuit does not need to be redesigned by spending a large amount of time. The design and production efficiency is improved, and the thickness of the keyboard can be reduced.

Drawings

Fig. 1 is a schematic structural diagram of a membrane switch disclosed in the background art.

Fig. 2 is a schematic structural diagram of a novel membrane switch connection structure according to the present invention.

Fig. 3 is a schematic diagram of the conduction of fig. 2.

Fig. 4 is a schematic structural diagram of a novel membrane switch connection structure according to the present invention.

Fig. 5 is a schematic diagram of the conduction of fig. 4.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "upper, lower" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

The first embodiment is as follows:

as shown in fig. 2 to 5, a novel membrane switch connection structure includes a first substrate 1, an intermediate insulating layer substrate 2, and a second substrate 3; the outside printing of first substrate has the first conducting wire 4 of two intervals settings, the inboard printing of first substrate has the second conducting wire 5 of two intervals settings, the back of first substrate still prints the first electrically conductive PAD 6 and the electrically conductive PAD 7 of second that the interval set up, the electrically conductive PAD of first electrically conductive PAD and second communicates with the second conducting wire respectively, be provided with through-hole 8 on the first substrate, fill electrically conductive printing ink in the through-hole, the through-hole is just to first wire circuit and first electrically conductive PAD, the electrically conductive PAD setting of second conducting wire and second, the second substrate is just to first substrate printing has the electrically conductive PAD 9 of third, the electrically conductive PAD of third is just to first electrically conductive PAD and the electrically conductive PAD setting of second, middle insulating layer substrate sets up between first substrate and second substrate and just is provided with the hole of stepping down to the electrically conductive PAD of third.

Specifically, an insulating ink protection layer 10 is arranged on the outer side of the first substrate, and the first lead line is located between the insulating ink protection layer and the first substrate.

Example two:

as shown in fig. 2 and fig. 3, a novel thin film switch connection structure is provided with an insulating ink protection layer from top to bottom in sequence, so as to protect a first conductive line printed on two front sides of a first substrate at intervals, wherein the back side of the first substrate is printed with two second conductive lines at intervals and a first conductive PAD and a second conductive PAD which are connected with the second conductive lines and at intervals, a through hole is provided on the first substrate, conductive ink is filled in the through hole, the first conductive line and the first conductive PAD, the second conductive line and the second conductive PAD are connected through the conductive ink, the first conductive PAD and the second conductive PAD are right opposite to a third conductive PAD, the third conductive PAD is printed on the second substrate, an intermediate insulating layer substrate is provided between the first substrate and the second substrate, and the intermediate insulating layer substrate is right opposite to the third conductive PAD and is provided with an abdication hole.

When the first conductive PAD and the second conductive PAD are pressed, after the conductive ink poured into the first conductive circuit through the through hole corresponding to the first conductive PAD is conducted with the first conductive PAD, the current is connected with the third conductive PAD and then is led into the second conductive PAD, and the conductive ink poured into the second conductive PAD through the through hole is conducted with the first conductive circuit on the front side of the first substrate to form a loop.

Example three:

as shown in fig. 4 and 5, a novel membrane switch connection structure is provided with a second substrate in sequence from top to bottom, a third conductive PAD is printed on the back of the second substrate, a first conductive PAD and a second conductive PAD are printed on the front of the first substrate just opposite to the third conductive PAD, a second electric printing furnace communicated with the first conductive PAD and the second conductive PAD is also printed on the front of the first substrate, an intermediate insulation layer substrate is arranged between the first substrate and the third substrate, a abdication hole is arranged on the intermediate insulation layer substrate just opposite to the third conductive PAD, a through hole is arranged on the first substrate, conductive ink is filled in the through hole, two first conductor lines arranged at intervals are printed on the back of the first substrate, the first conductor lines, the first conductive PAD, the second conductive PAD and the second conductive PAD are connected through the conductive ink, and an insulating ink protection layer is further arranged on the back of the first substrate for protecting the first conductor lines printed on the back of the first substrate.

When the third conductive PAD is pressed, the third conductive PAD is in contact with the second conductive PAD and the first conductive PAD, the first conductive circuit on the back surface of the first substrate is conducted through the through holes corresponding to the second conductive PAD and the first conductive PAD, a loop is formed, and the circuits are conducted.

Finally, it should be noted that: various modifications and alterations of this invention may be made by those skilled in the art without departing from the spirit and scope of this invention. Thus, to the extent that such modifications and variations of the present invention fall within the scope of the present claims and their equivalents, it is intended that the present invention encompass such modifications and variations as well.

Claims

1. A novel membrane switch connecting structure comprises a first substrate, a middle insulating layer substrate and a second substrate; it is characterized in that the preparation method is characterized in that,

the outside printing of first substrate has the first conducting wire of two intervals settings, the inboard printing of first substrate has the second conducting wire of two intervals settings, the back of first substrate still prints the first electrically conductive PAD and the electrically conductive PAD of second that the interval set up, the electrically conductive PAD of first electrically conductive PAD and second communicates with the second conducting wire respectively, be provided with the through-hole on the first substrate, fill electrically conductive printing ink in the through-hole, the through-hole is just to first wire circuit and first electrically conductive PAD, the electrically conductive PAD setting of second conducting wire and second, the second substrate is just to first substrate printing has the electrically conductive PAD of third, the electrically conductive PAD of third is just to the electrically conductive PAD setting of first electrically conductive PAD and second, middle insulating layer substrate sets up between first substrate and second substrate and just is provided with the hole of stepping down to the electrically conductive PAD of third.

2. The novel membrane switch connecting structure as claimed in claim 1, wherein an insulating ink protection layer is disposed on an outer side of the first substrate, and the first conductive trace is disposed between the insulating ink protection layer and the first substrate.

3. The novel membrane switch connecting structure as claimed in claim 2, wherein at least 2 through holes are provided respectively facing the first conductive PAD and the second conductive PAD.

4. The novel membrane switch connecting structure as claimed in claim 3, wherein the first substrate, the intermediate insulating layer substrate and the second substrate are all PET substrates.