CN214704575U

CN214704575U - High leakproofness film keyboard

Info

Publication number: CN214704575U
Application number: CN202121033309.2U
Authority: CN
Inventors: 徐孝海
Original assignee: Shenzhen Jingtai Electronic Co ltd
Current assignee: Shenzhen Xingshan Huachuang Electronics Co ltd
Priority date: 2021-05-14
Filing date: 2021-05-14
Publication date: 2021-11-12
Anticipated expiration: 2031-05-14

Abstract

The utility model provides a high-tightness membrane keyboard, which comprises a membrane circuit board, a sealing component, a plurality of membrane keys and an airflow system; the sealing assembly comprises an upper sealing shell and a lower sealing shell which are hermetically connected through a first sealing structure, and the upper sealing shell and the lower sealing shell are enclosed to form a sealing cavity for containing the thin film circuit board; each film key comprises an elastic body and a key shell assembled above the elastic body, wherein the elastic body is provided with an inner cavity communicated with the sealing cavity; the gas flow system is used for gas flow in the sealing cavity when the elastic body is deformed. Form sealed protection to the film circuit board through seal assembly, waterproof dustproof performance is strong, and when the film button pressurized or reset, make the inside air current of sealed cavity produce through the airflow system and flow, make the elastomer can produce stable deformation, guarantee the stability in use of film button, realize the button function of film button like this through the airflow system under the prerequisite of guaranteeing film circuit board leakproofness.

Description

High leakproofness film keyboard

Technical Field

The utility model belongs to the technical field of input device technique and specifically relates to indicate a high leakproofness film keyboard.

Background

The keyboard is the most common and main input device, and english letters, numbers, punctuations and the like can be input into the computer through the keyboard, so as to send commands, input data and the like to the computer.

At present, the keyboard is mainly a mechanical keyboard and a membrane keyboard, and in the field of membrane keyboards, because the inner cavity of an elastic body needs to perform an exhaust action when membrane keys are pressed down, an exhaust groove is preset in the design of the elastic body, meanwhile, the membrane keys are in circuit conduction through the contact of the elastic body and a membrane circuit board, and a through hole for the elastic body to enter the interior and be in contact with the membrane circuit board is reserved on a shell, so that the problems of poor sealing performance and low waterproof and dustproof performance of the membrane keyboard are directly caused by the design of the exhaust groove and the through hole of the traditional membrane keyboard.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a high leakproofness film keyboard forms waterproof dirt-proof protection to the thin film circuit board through seal assembly, realizes the button function of film button under the prerequisite of guaranteeing the thin film circuit board leakproofness through the air current system.

In order to solve the technical problem, the utility model provides a high leakproofness film keyboard, include:

a thin film circuit board;

the sealing assembly comprises an upper sealing shell and a lower sealing shell which are hermetically connected through a first sealing structure, and the upper sealing shell and the lower sealing shell are enclosed to form a sealing cavity for containing the thin film circuit board;

the film keys comprise elastic bodies and key shells assembled above the elastic bodies, and the elastic bodies are provided with inner cavities communicated with the sealing cavities;

and the gas flow system is used for supplying gas to flow in the sealing cavity when the elastic body is deformed.

Preferably, the airflow system comprises a first communication hole and an airflow channel which are arranged on the upper sealing shell, and an elastic deformation groove which is arranged on the lower sealing shell, the airflow channel is arranged on the inner surface of the upper sealing shell, two ends of the first communication hole are respectively communicated with the inner cavity and the airflow channel, and the elastic deformation groove is communicated with the airflow channel.

Preferably, the airflow channel comprises at least one transverse airflow slot and/or at least one longitudinal airflow slot.

Preferably, the lower sealing shell is provided with an installation groove for installing the thin film circuit board, and the thin film circuit board is provided with a second communication hole for communicating the airflow channel with the elastic deformation groove.

Preferably, the sealed chamber includes a first accommodation region for accommodating the thin film circuit board, and an elastically deformable second accommodation region communicating with the airflow passage.

Preferably, the first sealing structure comprises a first sealing part arranged on the edge of the upper sealing shell and a second sealing part arranged on the lower sealing shell, and the first sealing part and the second sealing part are matched for use to seal the joint of the upper sealing shell and the lower sealing shell.

Preferably, the first seal structure further includes a first seal body for sealingly connecting the first seal portion and the second seal portion.

Preferably, the film key further comprises a lower substrate and an upper substrate used for fixing the film key, and the sealing assembly is arranged between the upper substrate and the lower substrate;

the internal surface of upper substrate sets firmly the fixed column, and this fixed column passes upper seal shell, lower seal shell and infrabasal plate in proper order, the surface of infrabasal plate is equipped with the retaining member that uses with the fixed column cooperation.

Preferably, the upper sealing shell and/or the lower sealing shell are/is provided with a wire inlet for a power supply wire to pass through, the wire inlet and the wire are sealed through a second sealing structure, and the wire is electrically connected with the thin film circuit board.

Preferably, the upper sealing shell and/or the lower sealing shell are/is provided with a mounting seat for mounting a power supply connector, one end of the power supply connector is electrically connected with the thin film circuit board, the other end of the power supply connector is arranged on the outer side of the sealing assembly, and the mounting seat and the circuit board are sealed through a third sealing structure.

The beneficial effects of the utility model reside in that: the utility model provides a high leakproofness film keyboard, carry out sealing connection with last sealed shell and lower sealed shell through first seal structure, and locate sealed intracavity with the film circuit board, form the waterproof dustproof protection to the film circuit board, the leakproofness is strong, and when film button pressurized or when reseing, make sealed intracavity portion air current produce through the air current system this moment and flow, make the elastomer can produce stable deformation, guarantee the stability in use of film button, realize the button function of film button like this under the prerequisite of guaranteeing film circuit board leakproofness through the air current system.

Drawings

Fig. 1 is a schematic structural diagram of a first view angle according to an embodiment of the present invention.

Fig. 2 is a schematic cross-sectional structure view of a-a in fig. 1.

Fig. 3 is a partially enlarged structural view of a portion C in fig. 2.

Fig. 4 is a schematic cross-sectional structure of B-B in fig. 1.

Fig. 5 is a schematic perspective view of a second view angle according to an embodiment of the present invention.

Fig. 6 is a schematic perspective view of the hidden lower substrate in fig. 5.

Fig. 7 is a schematic perspective view of the lower sealing shell hidden in fig. 6.

Fig. 8 is a schematic perspective view of the hidden thin film circuit board in fig. 7.

Fig. 9 is an exploded schematic view of a three-dimensional structure at a first viewing angle according to an embodiment of the present invention.

Fig. 10 is an exploded schematic view of a perspective structure of a fourth view angle according to an embodiment of the present invention.

Fig. 11 is a schematic perspective view of a second view angle of the present invention.

Fig. 12 is an exploded schematic view of a three-dimensional structure of a second viewing angle of six embodiments of the present invention.

Description of reference numerals:

100-thin film circuit board, 110-second communication hole;

200-sealing component, 210-upper sealing shell, 211-first connecting hole, 212-transverse airflow groove, 213-longitudinal airflow groove, 214-first sealing part, 220-lower sealing shell, 221-elastic deformation groove, 222-mounting groove, 223-second sealing part, 230-first containing area, 240-second containing area, 250-master control circuit board;

300-film keys, 310-elastic bodies, 311-inner cavities and 320-key shells;

400-upper substrate, 410-fixed column;

500-lower substrate;

600-a wire;

700-wire inlet;

800-an electrical connection;

900-mounting seat.

Detailed Description

In order to facilitate the understanding of those skilled in the art, the present invention will be further described with reference to the following examples, which are not intended to limit the scope of the present invention.

Fig. 1 to 10 illustrate a first embodiment of a high-sealing membrane keyboard of the present invention, which includes a membrane circuit board 100, a sealing assembly 200, a plurality of membrane keys 300, and an airflow system; the sealing assembly 200 comprises an upper sealing shell 210 and a lower sealing shell 220 which are hermetically connected through a first sealing structure, wherein the upper sealing shell 210 and the lower sealing shell 220 enclose a sealing cavity for accommodating the thin film circuit board 100; each membrane key 300 comprises an elastic body 310 and a key shell 320 arranged above the elastic body 310, wherein the elastic body 310 is provided with an inner cavity 311 communicated with a sealed cavity; the gas flow system is used to provide gas flow within the seal cavity when the elastomer 310 is deformed.

Specifically, the elastic body 310 is a soft rubber seat, and the key casing 320 is assembled above the soft rubber seat;

carry out sealing connection with last sealed shell 210 and lower sealed shell 220 through first seal structure, and locate sealed intracavity with film circuit board 100, form the waterproof dustproof protection to film circuit board 100, the leakproofness is strong, and when film button 300 pressurized or reset, make the inside air current of sealed intracavity produce through airflow system this moment and flow, make elastomer 310 can produce stable deformation, guarantee film button 300's stability in use, realize film button 300's button function under the prerequisite of guaranteeing film circuit board 100 leakproofness through airflow system like this.

Further, the membrane keypad 300 further includes a scissor structure, which is used to ensure that the key housing 320 is stressed uniformly in all directions when pressed.

In this embodiment, the airflow system includes a first communication hole 211 and an airflow channel opened in the upper sealing case 210, and an elastic deformation groove 221 provided in the lower sealing case 220, the airflow channel is opened in the inner surface of the upper sealing case 210, two ends of the first communication hole 211 are respectively communicated with the inner cavity 311 and the airflow channel, and the elastic deformation groove 221 is communicated with the airflow channel.

Specifically, the inner surface of the lower sealing shell 220 is recessed toward the outer side thereof to form an elastic deformation groove 221.

When the membrane key 300 is pressed down, the air flow in the inner cavity 311 of the elastic body 310 is extruded at the moment, so that the air flow flows and enters the elastic deformation groove 221 after passing through the first communicating hole 211 and the air flow channel in sequence, and then the air flow extrudes the elastic deformation groove 221 to bulge the elastic deformation groove 221, so that the elastic member can be pressed down and deformed, otherwise, when the membrane key 300 is not pressed down, the bulged elastic deformation groove 221 rebounds to generate rebounding extrusion force on the air flow in the elastic deformation groove 221 and enters the inner cavity 311 of the elastic body 310 through the elastic deformation groove 221, the air flow channel and the first communicating hole 211 in sequence, so that the elastic body 310 rebounds to reset the membrane key 300; thus, the key function of the membrane key 300 can be realized on the premise of ensuring the sealing performance of the membrane circuit board 100.

In this embodiment, the airflow passage includes at least one transverse airflow slot 212 and/or at least one longitudinal airflow slot 213.

When the airflow channel includes at least one airflow channel 212, such as when the keypad is provided with three rows of membrane keys 300, the number of airflow channels 212 is three, and the three airflow channels 212 are respectively installed corresponding to the three rows of membrane keys 300, that is, the inner cavities 311 of the elastic bodies 310 of all the membrane keys 300 in each row are communicated with the airflow channels 212 corresponding to the membrane keys 300 in the row, so as to reduce the number of airflow channels 212 and increase the structural strength of the upper sealing case 210.

When the airflow channel includes at least one longitudinal airflow slot 213, such as when the keyboard is provided with three rows of membrane keys 300, the number of the longitudinal airflow slots 213 is three, and the three longitudinal airflow slots 213 are respectively installed corresponding to the three rows of membrane keys 300, that is, the inner cavities 311 of the elastic bodies 310 of all the membrane keys 300 in each row are communicated with the longitudinal airflow slots 213 corresponding to the membrane keys 300 in the row, so as to reduce the arrangement of the longitudinal airflow slots 213 and increase the structural strength of the upper sealing shell 210.

When the airflow channel comprises at least one transverse airflow groove 212 and at least one longitudinal airflow groove 213, the transverse airflow grooves 212 and the longitudinal airflow grooves 213 are arranged in a staggered mode, the number of the transverse airflow grooves 212 corresponds to the number of rows of the membrane keys 300, and the number of the longitudinal airflow grooves 213 corresponds to the number of columns of the membrane keys 300, so that the airflow channel has the function of flowing airflow to each membrane key 300, and the intersection of the transverse airflow grooves 212 and the longitudinal airflow grooves 213 is communicated with the elastic deformation grooves 221 to reduce the number of the elastic deformation grooves 221; further, a total junction point may be provided, such that each of the transverse air flow grooves 212 and the longitudinal air flow grooves 213 flows to the total junction point and then communicates with the elastic deformation groove 221, and the total junction point is at least one.

In this embodiment, the lower sealing case 220 is formed with an installation groove 222 for installing the thin film circuit board 100, and the thin film circuit board 100 is formed with a second communication hole 110 for communicating the airflow channel with the elastic deformation groove 221. The thin film circuit board 100 is fixedly installed in the installation groove 222, so that the thin film circuit board 100 is conveniently installed, the installation stability of the thin film circuit board 100 is improved, and on the basis, the airflow channel is communicated with the elastic deformation groove 221 through the second communication hole 110, and the function of an airflow system is realized.

In this embodiment, the sealed chamber includes a first receiving area 230 for receiving the thin film circuit board 100, and an elastically deformable second receiving area 240, and the second receiving area 240 communicates with the airflow channel.

The second receiving area 240 is elastically deformable and is in communication with the airflow channel, such that when the membrane key 300 is pressed down, part or all of the airflow may flow into the second receiving area 240 to form a bulge, and when no force is applied to the membrane key 300, the part or all of the airflow flows back into the inner cavity 311 of the elastic body 310 to rebound the elastic body 310, such that the second receiving area 240 and the airflow channel may also perform the function of the airflow system.

In this embodiment, the first sealing structure includes a first sealing portion 214 disposed at the edge of the upper sealing shell 210 and a second sealing portion 223 disposed at the lower sealing shell 220, and the first sealing portion 214 and the second sealing portion 223 cooperate to seal the joint between the upper sealing shell 210 and the lower sealing shell 220.

Specifically, referring to fig. 2 to 4 and fig. 7 to 10, the first sealing portion 214 is a sealing strip disposed at an edge of the upper sealing shell 210, and the second sealing portion 223 is a sealing groove disposed on the lower sealing shell 220, so that the sealing strip and the sealing groove form a positioning structure, which facilitates the installation of the upper sealing shell 210 and the lower sealing shell 220, and meanwhile, the sealing strip and the sealing groove also form a concave-convex embedding structure, so that dust and liquid are difficult to enter the sealing cavity from the concave-convex embedding structure, thereby improving the waterproof and dustproof performance. Or the first sealing part 214 is a sealing groove opened at the edge of the upper sealing shell 210, and the second sealing part 223 is a sealing strip provided at the lower sealing shell 220, which is not shown in the drawings, but is directly derived from the description in this paragraph in the field.

In this embodiment, the first sealing structure further includes a first sealing body (not shown) for sealing and connecting the first sealing portion 214 and the second sealing portion 223. Specifically, the first sealing body (not shown) is a sealant, and the connection tightness between the first sealing portion 214 and the second sealing portion 223 and the sealing performance between the first sealing portion and the second sealing portion are improved by the sealant, so that the practicability is high.

In this embodiment, the thin film key assembly further includes a lower substrate 500 and an upper substrate 400 for fixing the thin film key 300, and the sealing member 200 is disposed between the lower substrate 500 and the upper substrate 400; the inner surface of the upper substrate 400 is fixedly provided with fixing posts 410, the fixing posts 410 sequentially penetrate through the upper sealing shell 210, the lower sealing shell 220 and the lower substrate 500, and the outer surface of the lower substrate 500 is provided with a locking member (not shown) matched with the fixing posts 410.

Specifically, the locking member (not shown) may be a nut, and the fixing post 410 is a stud, and the stud and the nut are used in cooperation to fix the upper substrate 400, the upper sealing case 210, the lower sealing case 220, and the lower substrate 500.

In addition, the locking member (not shown) may also be formed by hot-pressing the ends of the fixing posts 410, that is, after the fixing posts 410 sequentially pass through the upper sealing case 210, the lower sealing case 220, and the lower substrate 500, the ends of the fixing posts 410 are hot-pressed, so that the ends of the fixing posts 410 are formed into flat locking portions, thereby fixing the four.

Furthermore, the joints of the fixing posts 410, the upper substrate 400, the upper sealing shell 210, the lower sealing shell 220 and the lower substrate 500 are respectively provided with a sealant for sealing, so as to improve the waterproof and dustproof performance of the keyboard.

In this embodiment, the upper sealing case 210 and/or the lower sealing case 220 are provided with a wire inlet 700 for passing the power supply wire 600, the wire inlet 700 and the power wire 600 are sealed by a second sealing structure, and the power wire 600 is electrically connected to the film circuit board 100.

Specifically, the specific position of the wire inlet 700 may be designed according to the production requirements, for example, the upper sealing shell 210 or the lower sealing shell 220 is provided with the wire inlet 700, or the upper sealing shell 210 and the lower sealing shell 220 are simultaneously provided with the wire inlet 700, or a part of the wire inlet 700 is provided with the upper sealing shell 210 and another part of the wire inlet 700 is provided with the lower sealing shell 220, so as to meet different production requirements.

Further, the connection between the wire inlet 700 and the electric wire 600 is sealed by the second sealing structure, so that liquid and dust are prevented from entering the sealing cavity from the connection, and the waterproof and dustproof performance is improved.

Specifically, the second sealing structure is a second sealing body (not shown) disposed between the wire inlet 700 and the electric wire 600, or a heat-shrinkable tube (not shown) sleeved on the electric wire 600.

When the second sealing body (not shown) is a sealant, the sealant is adopted to improve the connection tightness between the wire inlet 700 and the electric wire 600 and the sealing performance between the wire inlet and the electric wire, and the practicability is strong.

When the second sealing body (not shown) is a heat shrinkable tube (not shown), the wire 600 is protected by the heat shrinkable tube (not shown) in one step, and the heat shrinkable tube (not shown) has certain elasticity to fill the gap between the wire 600 and the wire inlet 700, so as to form a seal.

Further, a general control circuit board 250 may be disposed in the second accommodation area 240 to control the film circuit board 100, and at this time, the electric wire 600 is electrically connected to the general control circuit board 250, and the film circuit board 100 is electrically connected to the general control circuit board 250.

Fig. 11 to 12 show a second embodiment of the high-sealing membrane keyboard of the present invention, which is different from the above embodiments in that: the upper sealing shell 210 and/or the lower sealing shell 220 are provided with a mounting seat 900 for mounting the electrical connector 800, one end of the electrical connector 800 is electrically connected with the thin film circuit board 100, the other end of the electrical connector 800 is arranged outside the sealing assembly, and the mounting seat 900 and the electrical connector 800 are sealed through a third sealing structure.

Specifically, the electrical connector 800 is an electrical connector integrally formed with the film circuit board 100, and the electrical connector is used to electrically connect with an external control unit (e.g., a general control circuit board).

Specifically, the specific position of the mounting seat 900 may be designed according to production requirements, for example, the mounting seat 900 is opened on the upper sealing shell 210 or the lower sealing shell 220, or the mounting seat 900 is opened on both the upper sealing shell 210 and the lower sealing shell 220, or a portion of the mounting seat 900 is opened on the upper sealing shell 210 and another portion of the wire inlet 700 are opened on the lower sealing shell 220, so as to meet different production requirements.

Further, the joint of the mounting seat 900 and the electrical connector 800 is sealed by the third sealing structure, so that liquid and dust are prevented from entering the sealing cavity from the joint, and the waterproof and dustproof performance is improved.

Specifically, the third sealing structure is a third sealing body (not shown) disposed between the mounting seat 900 and the electrical connector 800, or a heat-shrinkable tube (not shown) sleeved on the electrical connector 800.

When the third sealing body (not shown) is a sealing glue, the sealing glue is adopted to improve the connection tightness between the mounting seat 900 and the electrical connector 800 and the sealing performance between the mounting seat 900 and the electrical connector 800, and the practicability is strong.

When the third sealing body (not shown) is a heat-shrinkable tube (not shown), the electrical connector 800 is protected by the heat-shrinkable tube (not shown) in one step, and the heat-shrinkable tube (not shown) has certain elasticity to fill the gap between the mounting seat 900 and the electrical connector 800, so as to form a seal.

In the description of the present invention, it should be noted that, for the orientation words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship are based on the orientation or positional relationship shown in the drawings, and it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected", if any, are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

The above-mentioned embodiments only express a plurality of embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. High leakproofness film keyboard, its characterized in that: the method comprises the following steps:

a thin film circuit board (100);

the sealing assembly (200) comprises an upper sealing shell (210) and a lower sealing shell (220) which are connected in a sealing mode through a first sealing structure, and the upper sealing shell (210) and the lower sealing shell (220) are enclosed to form a sealing cavity for containing the thin film circuit board (100);

a plurality of membrane keys (300), each membrane key (300) comprising an elastic body (310) and a key case (320) mounted above the elastic body (310), the elastic body (310) having an inner cavity (311) communicating with the sealed cavity;

and a gas flow system for providing gas flow within the sealed cavity when the elastomer (310) is deformed.

2. The high-sealability film keyboard of claim 1, wherein: the air flow system comprises a first communicating hole (211) and an air flow channel which are arranged on the upper sealing shell (210), and an elastic deformation groove (221) which is arranged on the lower sealing shell (220), wherein the air flow channel is arranged on the inner surface of the upper sealing shell (210), two ends of the first communicating hole (211) are respectively communicated with the inner cavity (311) and the air flow channel, and the elastic deformation groove (221) is communicated with the air flow channel.

3. The high-sealability film keyboard of claim 2, wherein: the airflow channel comprises at least one transverse airflow slot (212) and/or at least one longitudinal airflow slot (213).

4. The high-sealability film keyboard of claim 2, wherein: the lower sealing shell (220) is provided with a mounting groove (222) for mounting the thin film circuit board (100), and the thin film circuit board (100) is provided with a second communication hole (110) for communicating the airflow channel with the elastic deformation groove (221).

5. The high-sealability film keyboard of claim 2, wherein: the sealed chamber includes a first accommodation region (230) for accommodating the thin film circuit board (100), and an elastically deformable second accommodation region (240), the second accommodation region (240) communicating with the airflow passage.

6. The high-sealability film keypad of any one of claims 1 to 5, wherein: the first sealing structure comprises a first sealing part (214) arranged on the edge of the upper sealing shell (210) and a second sealing part (223) arranged on the lower sealing shell (220), and the first sealing part (214) and the second sealing part (223) are matched for use to seal the joint of the upper sealing shell (210) and the lower sealing shell (220).

7. The high-sealability film keyboard of claim 6, wherein: the first seal structure further comprises a first seal body for sealingly connecting the first seal portion (214) with the second seal portion (223).

8. The high-sealability film keypad of any one of claims 1 to 5, wherein: the thin film key assembly further comprises a lower substrate (500) and an upper substrate (400) used for fixing the thin film key (300), and the sealing assembly (200) is arranged between the upper substrate (400) and the lower substrate (500);

the inner surface of the upper substrate (400) is fixedly provided with fixing columns (410), the fixing columns (410) sequentially penetrate through the upper sealing shell (210), the lower sealing shell (220) and the lower substrate (500), and locking pieces matched with the fixing columns (410) are arranged on the outer surface of the lower substrate (500).

9. The high-sealability film keypad of any one of claims 1 to 5, wherein: an inlet (700) for passing a power supply line (600) is formed in the upper sealing shell (210) and/or the lower sealing shell (220), the inlet (700) is sealed with the power line (600) through a second sealing structure, and the power line (600) is electrically connected with the thin film circuit board (100).

10. The high-sealability film keypad of any one of claims 1 to 5, wherein: the upper sealing shell (210) and/or the lower sealing shell (220) are/is provided with an installation seat (900) used for installing a power supply connector (800), one end of the power supply connector (800) is electrically connected with the thin film circuit board (100), the other end of the power supply connector (800) is arranged on the outer side of the sealing assembly, and the installation seat (900) and the power supply connector (800) are sealed through a third sealing structure.