CN116453895A - Key device and guide broadcast switching table - Google Patents

Key device and guide broadcast switching table Download PDF

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Publication number
CN116453895A
CN116453895A CN202310293323.3A CN202310293323A CN116453895A CN 116453895 A CN116453895 A CN 116453895A CN 202310293323 A CN202310293323 A CN 202310293323A CN 116453895 A CN116453895 A CN 116453895A
Authority
CN
China
Prior art keywords
key
bottom plate
key device
display screen
movable mounting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310293323.3A
Other languages
Chinese (zh)
Inventor
左振宇
刘瑛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changsha Kiloview Electronics Co ltd
Original Assignee
Changsha Kiloview Electronics Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Changsha Kiloview Electronics Co ltd filed Critical Changsha Kiloview Electronics Co ltd
Priority to CN202310293323.3A priority Critical patent/CN116453895A/en
Publication of CN116453895A publication Critical patent/CN116453895A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/84—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by ergonomic functions, e.g. for miniature keyboards; characterised by operational sensory functions, e.g. sound feedback
    • H01H13/85—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by ergonomic functions, e.g. for miniature keyboards; characterised by operational sensory functions, e.g. sound feedback characterised by tactile feedback features
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H01H13/704—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by the layers, e.g. by their material or structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H01H13/705—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
    • H01H13/7065—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys characterised by the mechanism between keys and layered keyboards
    • H01H13/7073—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys characterised by the mechanism between keys and layered keyboards characterised by springs, e.g. Euler springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/83—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by legends, e.g. Braille, liquid crystal displays, light emitting or optical elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/268—Signal distribution or switching
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0217—Mechanical details of casings

Abstract

The invention discloses a key device, which comprises a bracket component and a plurality of key modules, wherein the bracket component comprises a bottom plate, the plurality of key modules are arranged on the bottom plate, each key module comprises a hollow key body, the key body is elastically arranged on the bottom plate, the top of the key body is provided with a transparent key cap, the bottom of the key body is provided with a conductive silica gel layer, the bottom of the bottom plate is provided with an insulating film, and the bottom plate and the insulating film are provided with through holes at the positions of the conductive silica gel layer. The invention also discloses a broadcasting guiding switching table, which comprises a shell, a touch display screen and a key device, wherein the touch display screen is arranged on the shell, and the key device is arranged on the touch display screen. The invention has the advantages of simple structure, convenient disassembly and assembly, high operation reliability and the like.

Description

Key device and guide broadcast switching table
Technical Field
The invention mainly relates to the technical field of guide switching stations, in particular to a key device and a guide switching station.
Background
In the broadcast television industry, particularly on the product of a broadcast-guiding switching station, a plurality of keys are arranged to meet various functional requirements. In order to distinguish functions, fixed icons or characters are engraved in the keys, and then an LED lamp is arranged in the keys, so that interaction is achieved with a user through simple modes of different colors, on-off, flickering and the like, and the functional state of the keys at present is known, and the mode is not visual, and is not simple. A product with multiple functions and huge body shape has a core PCB which can be only small, and the outline size is that a plurality of keys are enlarged. Sometimes, the user only uses a local function, and has to carry a huge product for use, which not only wastes manpower materials, but also causes spreading waste in the manufacturing cost. In the current era background of pursuing extremely high performance and extremely high space, particularly in the broadcast television industry, a plurality of devices need to be integrated into a small studio, and even a television rebroadcasting vehicle, so that the smaller the volume is, the better the function of a single product is required to be enough.
Currently, there is a key with a screen on the market that can display a pattern or a number in a self-defined manner. The display screen is integrated in the key, the screen is combined with the key, the purpose of enabling the key to display any custom icon is achieved, the size of the display screen is slightly larger than that of the traditional key, but the price of the display screen is increased by approximately 40 times, and the cost is very high. In the scheme, the display screen is integrated in a small space, so that key function multiplexing and identification self-definition can be realized, but the structure is complex, a plurality of fixed structures and electrical connection wires or pins are arranged in the display screen, so that the main chip is large in burden and the PCB-Layout wiring is complicated; the key is frequently pressed and knocked, is easy to damage and has very high overall cost.
The applicant has previously devised another solution, which is not to package a small display screen with one key, but to cover a plurality of keys on a large display screen (e.g. 5 inch/7 inch/8 inch), wherein the key cap is made of transparent material, the display screen inside can be seen through the transparent key cap, and the display screen displays the corresponding icon content in the area of the key cap ring. In the scheme, the screen is only responsible for displaying, two layers of induction coil circuits are arranged between the screen and the keys, and when a certain key cap is pressed down, the upper layer induction circuit and the lower layer induction circuit are close to each other or contact with each other, so that a signal is triggered to the main control chip, the screen displays corresponding contents in the area of the key cap or the system makes action response corresponding to the key function. In this scheme, as shown in fig. 1, although a whole large display screen is skillfully utilized to realize a plurality of keys by deblocking, and key function multiplexing and identification customization can be performed, the keys and the screen are relatively fixed and are inseparable. This results in a screen that can only be used as keys and cannot be used independently to display other content such as video, because each key has a circle of unavoidable structure to block a portion of the screen for a fixed purpose, many keys divide a complete screen into a plurality of tiles, and the tiles are discontinuous with each other with a portion of the space broken (blocked, as shown by the dashed line in fig. 1), so that it is not suitable for displaying video or other content.
In addition, some of the touch panels are used directly to display corresponding keys, and the touch panel is pressed by a finger to perform an operation. However, this involves a problem of the habit of the industry, in the broadcast television industry, the station of broadcasting and switching is a serious job, especially, for some important live programs (such as news simulcasts), the director needs to watch the large screen (not the on-hand touch screen device) tightly at all times, and does not watch the broadcasting keys on the hand all the time, so that "blind cutting" needs to be performed, that is, does not watch the key to operate, and if blind cutting is performed on a flat touch screen, if the blind cutting is performed on a inaccurate position, the key is possibly pressed mistakenly, so that a live broadcast accident is caused, and the result is very serious. In addition, the touch display screen cannot provide user feedback (such as sound/vibration) of touch at any time or the user feedback is not obvious, so that whether the key is pressed or not cannot be ensured.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the technical problems existing in the prior art, the invention provides a key device and a guided broadcast switching station which have simple structures and ensure the guided broadcast switching reliability.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the utility model provides a key device, includes support subassembly and a plurality of button module, support subassembly includes the bottom plate, a plurality of button modules install in on the bottom plate, each button module includes hollow button body, button body elastic mounting in on the bottom plate, the top of button body is provided with transparent key cap, the bottom of button body is provided with conductive silica gel layer, the bottom of bottom plate is provided with the insulating film, bottom plate and insulating film are provided with the through-hole in conductive silica gel layer's position.
As a further improvement of the above technical scheme:
the key body is elastically mounted on the bottom plate through an elastic component; the elastic component comprises a conductive elastic piece, and the elastic piece is arranged at the bottom of the key body and is electrically connected with the conductive silica gel layer; when the key body is pressed down to a preset position, the elastic piece is attached to the top of the bottom plate, so that the bottom plate, the elastic piece and the conductive silica gel layer form an integrated structure in electric connection.
The elastic piece is a spring piece or a spring and is arranged at the periphery of the bottom of the key body.
The bottom plate is provided with a plurality of guide posts, and the key body is sleeved on the guide posts.
Mounting assemblies are arranged at two ends of the bottom plate; the installation component includes fixed mounting plate and movable mounting plate, the fixed mounting plate fasten in the one end of bottom plate, movable mounting plate movable mounting in the other end of bottom plate, be provided with locating component between fixed mounting plate and movable mounting plate and the shell of leading the broadcasting switching station.
The positioning assembly comprises a positioning pin and a positioning hole, wherein the positioning pin is arranged on the fixed mounting plate and the movable mounting plate, and the positioning hole is arranged on the shell.
And a contact switch is arranged in each positioning hole and is connected with a controller of the broadcasting guiding switching table.
The other end of the movable mounting plate or the bottom plate is provided with a magnet, and the movable mounting plate and the bottom plate are movably mounted through the magnet.
The invention also discloses a broadcasting guiding switching table, which comprises a shell, a touch display screen and a key device, wherein the touch display screen is arranged on the shell, and the key device is arranged on the touch display screen.
As a further improvement of the above technical scheme:
a plurality of induction components are correspondingly arranged between the bottom plate and the shell, and are connected with a controller of the broadcasting guiding switching table; and the controller is used for controlling the touch display screen to display a key icon interface when receiving the induction signals of the plurality of induction components.
Compared with the prior art, the invention has the advantages that:
according to the invention, the key device is matched with the structural mode of the touch display screen to provide a mode that keys display different custom patterns or numbers, so that the overall dimension of a product can be greatly reduced, the use scene of the existing equipment is expanded, and the method has great advantages in the aspects of production cost, use convenience and the like; the key module is used for realizing the operation of keys on the touch display screen, so that the reliability of blind cutting is ensured; the key module can also give feedback to the user, and the user can clearly know that the user presses the key module by himself, so that the reliability of operation is further ensured; and the key device has simple integral structure, easy disassembly and assembly and easy realization.
Drawings
Fig. 1 is a schematic diagram of a structure of a large display screen covering a plurality of keys.
Fig. 2 is a perspective view of a key device according to an embodiment of the present invention.
Fig. 3 is a sectional view of a key device according to an embodiment of the present invention.
Fig. 4 is a perspective view of a key module according to an embodiment of the present invention.
Fig. 5 is a second perspective view of a key module according to an embodiment of the present invention.
Fig. 6 is a perspective view of a multicast switching station according to an embodiment of the present invention.
Fig. 7 is a perspective view of a housing and a touch display screen according to an embodiment of the present invention.
Legend description: 1. a bracket assembly; 101. a bottom plate; 1011. a through hole; 2. a key module; 201. a key body; 202. a key cap; 203. a conductive silica gel layer; 204. a guide post; 205. an elastic component; 2051. a spring plate; 2052. a spring; 3. a mounting assembly; 301. a fixed mounting plate; 302. a movable mounting plate; 303. a magnet; 4. a positioning assembly; 401. a positioning pin; 402. positioning holes; 5. an insulating film; 6. a housing; 7. touching the display screen; 8. an induction assembly; 801. and (3) an induction magnet.
Detailed Description
The invention is further described below with reference to the drawings and specific examples.
As shown in fig. 1, the key device according to the embodiment of the present invention includes a support assembly 1 and a plurality of key modules 2, where the support assembly 1 includes a base plate 101, the plurality of key modules 2 are mounted on the base plate 101, each key module 2 includes a hollow key body 201, the key body 201 is elastically mounted on the base plate 101, a transparent key cap 202 is disposed on the top of the key body 201 (for example, the key body 201 and the transparent key cap 202 are integrally formed), a conductive silica gel layer 203 is disposed at the bottom of the key body 201, an insulating film 5 is disposed at the bottom of the base plate 101, and through holes 1011 are disposed at positions of the conductive silica gel layer 203 on the base plate 101 and the insulating film 5.
The keycap 202 is made of transparent materials, so that a transparent keycap is formed, and the custom icon content on the touch display screen 7 of the guide broadcast switching table is ensured not to be blocked; similarly, the corresponding conductive silica gel layer 203 is in a shape of a Chinese character 'kou', and is hollow in the middle, so that the display content of the touch display screen 7 is not blocked, and meanwhile, the conductive silica gel layer is convex, so that the touch display screen 7 can be contacted by the convex through holes 1011 of the bottom plate 101 and the insulating film 5 when the key body 201 is pressed down, and a clear touch signal is provided for the touch display screen 7;
because the conductive silica gel layer 203 is made of conductive silica gel material, the conductive silica gel layer can be used on a capacitive touch screen or a resistive touch screen, and the flexible contact between the conductive silica gel layer 203 and the touch display screen 7 can not damage the touch display screen 7. When the capacitive touch screen is used, the conductive silica gel layer 203 at the bottom of the key body 201 contacts the surface of the capacitive touch screen in the pressing process, and the capacitance of the area is changed due to the conductive characteristic of the conductive silica gel layer, so that a touch signal is generated; when the resistive screen is used, the conductive silica gel layer 203 at the bottom of the key body 201 is pressed down to the touch screen, so that a pressure is applied to the resistive screen, and a screen bias voltage is generated, so that a touch signal is generated.
It should be noted that: touch screens are commonly used in the market at present in two types, namely capacitive screens and resistive screens. Capacitive screens are capacitive sensing technologies based on the following principles: upon occurrence of a touch or any other change in the surface of the object, the dielectric properties of a region of the object are changed, thereby changing the detected capacitance, i.e., creating a voltage change, to obtain a touch signal. A resistive touch screen is a sensor that converts the physical location of a touch point (X, Y) in a rectangular area into voltages representing the X and Y coordinates. Such a screen may use four, five, seven, or eight wires to generate a screen bias voltage while reading back the voltage at the touch point, thereby obtaining a touch signal.
In addition, as shown in fig. 3, the insulating film 5 is disposed at the bottom of the bottom plate 101, so that the bottom plate 101 is not in contact with the touch display 7, and only when the key body 201 is pressed down, the protruding "mouth" portion of the conductive silica gel layer 203 passes through the through holes 1011 of the bottom plate 101 and the insulating film 5, so that the touch display 7 can be contacted, and further, misoperation is avoided. Of course, in other embodiments, a spacer may be disposed between the bottom plate 101 and the touch display 7 to make the bottom plate 101 and the touch display 7 have a certain distance therebetween, so long as the conductive silica gel layer 203 is ensured to reliably contact the touch display 7 when being pressed down, so as to avoid malfunction between the bottom plate 101 and the touch display 7.
In a specific embodiment, as shown in fig. 4-5, a plurality of guide posts 204 (e.g., four guide posts 204 at four corners of the key body 201) are disposed on the bottom plate 101, and the key body 201 passes through the four guide posts 204, so as to ensure smoothness and positional accuracy of the key body 201 when moving up and down. Wherein the key body 201 is elastically mounted on the base plate 101 through the elastic component 205. Specifically, the elastic component 205 includes a conductive elastic member, which is mounted on the bottom of the key body 201 and is electrically connected to the conductive silica gel layer 203; when the key body 201 is pressed down to a predetermined position, the elastic member is abutted against the top of the bottom plate 101, so that the bottom plate 101, the elastic member and the conductive silica gel layer 203 form an electrically connected overall structure, and a large enough capacitance change is ensured when the touch display screen 7 is touched to reliably generate a trigger signal. The elastic piece is a beryllium copper spring piece 2051, as shown in fig. 4, the beryllium copper spring piece 2051 ensures that the button can rebound quickly after being pressed down, and meanwhile, the touch feeling of a user is ensured to be fed back clearly. Of course, in other embodiments, four coil springs 2052 may be sleeved on the four guide posts 204, and the function of the beryllium copper spring 2051 may be achieved, and the specific structure is shown in fig. 5.
In one embodiment, as shown in fig. 2, two ends of the base plate 101 are provided with mounting assemblies 3; the mounting assembly 3 includes a fixed mounting plate 301 and a movable mounting plate 302, the fixed mounting plate 301 being fastened to one end of the base plate 101, the movable mounting plate 302 being movably mounted to the other end of the base plate 101. Specifically, the other end of the movable mounting plate 302 or the base plate 101 is provided with a magnet 303, and movable mounting is achieved between the movable mounting plate 302 and the base plate 101 by the magnet 303. In addition, a positioning component 4 is arranged between the fixed mounting plate 301 and the movable mounting plate 302 and the shell 6 of the broadcasting guide switching table, so as to ensure that the key device is arranged at a preset position of the shell 6. Specifically, the positioning assembly 4 includes a positioning pin 401 and a positioning hole 402, the positioning pin 401 is mounted on the fixed mounting plate 301 and the movable mounting plate 302, the positioning hole 402 is mounted on the housing 6, and the key device is mounted at a predetermined position of the housing 6 by cooperation of the positioning pin 401 and the positioning hole 402.
During specific installation, the movable mounting plate 302 and the bottom plate 101 are separated, the fixed mounting plate 301 is inserted into the shell 6 to fix one end by means of the matching relation between the positioning pin 401 and the positioning hole 402, the positioning pin 401 on the side of the movable mounting plate 302 is matched with the positioning hole 402, and the movable mounting plate 302 and the bottom plate 101 are integrally fixed in a magnetic attraction mode. The invention can flexibly and rapidly install the key device on the shell 6 through the positioning component 4 and the magnetic attraction mode, thereby being transformed into a broadcasting guiding switching station suitable for the broadcasting and television industry.
As shown in fig. 6-7, the multicast switching table according to the embodiment of the present invention includes a housing 6, a touch display 7, and a key device as described above, wherein the touch display 7 is mounted on the housing 6, the key device is mounted on the touch display 7, wherein the number of key modules 2 of the key device depends on the size of the touch display 7, and the overall length of the key device depends on the external dimensions of the housing 6. The guiding and broadcasting switching table comprises the key device, has the advantages as described by the key device, and the whole structure of the key device can be flexibly taken down without shielding the touch display screen 7 from other functions such as playing video. In addition, the key device and the touch display screen 7 can realize key touch capability without connecting any signal line.
According to the invention, the key device is matched with the structure mode of the touch display screen 7 to provide a mode that keys display different custom patterns or numbers, so that the overall dimension of a product can be greatly reduced, the use scene of the existing equipment is expanded, and the method has great advantages in the aspects of production cost, use convenience and the like; the key module 2 is used for realizing the operation of keys on the touch display screen 7, so that the reliability of blind cutting is ensured; the key module 2 can also give feedback to the user, and the user can clearly know that the user presses the key module by himself or herself by pressing the key module, so that the reliability of operation is further ensured.
In one embodiment, when the touch display 7 is not provided with a key device, it can display all normal contents. In order to ensure that after the key device is mounted on the touch display screen 7, the UI display interface is automatically switched to adapt to the display of the corresponding content of the local transparent area of the key, a plurality of induction components 8 are correspondingly arranged between the bottom plate 101 and the shell 6, and the induction components 8 are connected with a controller of the broadcasting guiding switching table; the controller controls the touch display screen 7 to display a key icon interface when receiving the sensing signals of the sensing assemblies 8.
Specifically, the sensing assembly 8 includes sensing magnets 303 and hall elements (not shown in the drawings), wherein three sensing magnets 303 are disposed on the bottom surface of the bottom plate 101 of the key device, and three hall elements are disposed at corresponding positions of the housing 6. When the key device is mounted on the accurate position, the three hall elements on the housing 6 simultaneously sense the sensing magnets 303 to trigger three signals to the controller (such as a motherboard), so that the fact that the key device is mounted is recognized, and the UI display interface is immediately switched to an interface adapting to the key device (namely, the transparent key cap displays corresponding contents in a local transparent position). The number of the Hall elements is three or more, and the UI interface is switched when the Hall elements detect signals, so that the reliability of interface display is ensured.
Of course, in other embodiments, a contact switch may be installed in the positioning hole 402, where the contact switch is connected to the controller of the multicast switching station. After the key device is mounted on the housing 6, the left and right four positioning pins 401 are inserted into the four corresponding positioning holes 402 of the housing 6, the positioning pins 401 support the contact switch, and four signals are given to the controller, so that the completion of the key device mounting can be judged, and the UI display interface is immediately switched.
The invention relies on the touch display screen 7 to display different custom patterns, numbers and even dynamic icons through a simple key device structure, so that the identification of the keys becomes more vivid and visual, and a user can see the functions and states of the keys at a glance. The key identification can be customized, so that the multifunctional multiplexing capability of the key can be expanded. For example, a product has five functions (assuming that the five functions cannot be used simultaneously), each function requires ten keys, then the product requires fifty keys to complete. After the invention is applied, the key identification is customized, when a user uses the function A, the key icon of the function A is imported through the configuration file, the corresponding configuration file is imported when the user uses the function B, and so on, only ten keys are needed to achieve five functions, the outline dimension of the product can be greatly reduced, and the cost is greatly reduced.
As used in this disclosure and in the claims, the terms "a," "an," "the," and/or "the" are not specific to a singular, but may include a plurality, unless the context clearly dictates otherwise. The terms "first," "second," and the like, as used in this disclosure, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Likewise, the word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the invention without departing from the principles thereof are intended to be within the scope of the invention as set forth in the following claims.

Claims (10)

1. The utility model provides a key device, its characterized in that, includes support subassembly (1) and a plurality of button module (2), support subassembly (1) include bottom plate (101), a plurality of button module (2) install in on bottom plate (101), each button module (2) include hollow button body (201), button body (201) elastic mounting in on bottom plate (101), the top of button body (201) is provided with transparent key cap (202), the bottom of button body (201) is provided with conductive silica gel layer (203), the bottom of bottom plate (101) is provided with insulating film (5), bottom plate (101) and insulating film (5) are provided with through-hole (1011) in the position of conductive silica gel layer (203).
2. The key device according to claim 1, wherein the key body (201) is elastically mounted on the base plate (101) by means of an elastic member (205); the elastic component (205) comprises a conductive elastic piece, and the elastic piece is arranged at the bottom of the key body (201) and is electrically connected with the conductive silica gel layer (203); when the key body (201) is pressed down to a preset position, the elastic piece is abutted against the top of the bottom plate (101), so that the bottom plate (101), the elastic piece and the conductive silica gel layer (203) form an integral structure in electric connection.
3. The key device according to claim 2, wherein the elastic member is a spring piece (2051) or a spring (2052), and is mounted at a peripheral position of the bottom of the key body (201).
4. A key device according to claim 1, 2 or 3, wherein a plurality of guide posts (204) are arranged on the bottom plate (101), and the key body (201) is sleeved on the guide posts (204).
5. A key arrangement according to claim 1 or 2 or 3, characterized in that the two ends of the base plate (101) are provided with mounting assemblies (3); the installation component (3) includes fixed mounting panel (301) and movable mounting panel (302), fixed mounting panel (301) fasten in one end of bottom plate (101), movable mounting panel (302) movable mounting in the other end of bottom plate (101), be provided with locating component (4) between shell (6) of fixed mounting panel (301) and movable mounting panel (302) and the guide switching station.
6. The key device according to claim 5, wherein the positioning assembly (4) comprises a positioning pin (401) and a positioning hole (402), the positioning pin (401) is mounted on the fixed mounting plate (301) and the movable mounting plate (302), and the positioning hole (402) is mounted on the housing (6).
7. The key device according to claim 6, wherein a contact switch is installed in each positioning hole (402), and the contact switch is connected to a controller of the multicast switching station.
8. The key device according to claim 5, wherein a magnet (303) is provided at the other end of the movable mounting plate (302) or the base plate (101), and the movable mounting plate (302) and the base plate (101) are movably mounted by the magnet (303).
9. A broadcast-guided switching station comprising a housing (6) and a touch display screen (7) mounted on the housing (6), characterized in that it further comprises a key device according to any one of claims 1-8, said key device being mounted on the touch display screen (7).
10. The guided broadcast switching station according to claim 9, wherein a plurality of sensing assemblies (8) are correspondingly arranged between the bottom plate (101) and the shell (6), and the plurality of sensing assemblies (8) are connected with a controller of the guided broadcast switching station; the controller is used for controlling the touch display screen (7) to display a key icon interface when receiving sensing signals of the sensing assemblies (8).
CN202310293323.3A 2023-03-23 2023-03-23 Key device and guide broadcast switching table Pending CN116453895A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310293323.3A CN116453895A (en) 2023-03-23 2023-03-23 Key device and guide broadcast switching table

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310293323.3A CN116453895A (en) 2023-03-23 2023-03-23 Key device and guide broadcast switching table

Publications (1)

Publication Number Publication Date
CN116453895A true CN116453895A (en) 2023-07-18

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310293323.3A Pending CN116453895A (en) 2023-03-23 2023-03-23 Key device and guide broadcast switching table

Country Status (1)

Country Link
CN (1) CN116453895A (en)

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