CN220171953U - Key structure, touch screen and electronic equipment - Google Patents

Abstract

The utility model discloses a key structure, a touch screen and electronic equipment, wherein the key structure comprises a substrate, a plurality of indicator light structures and a plurality of key boards, a connecting circuit is formed on the substrate, a plurality of trigger parts which are electrically connected with the connecting circuit and are distributed at intervals are arranged on one side surface of the substrate, each indicator light structure comprises a plurality of indicator lights which are arranged on the substrate and are uniformly distributed on the periphery of the corresponding trigger part, each indicator light is electrically connected with the connecting circuit, the plurality of key boards are fixedly arranged on the substrate and are respectively arranged corresponding to the plurality of trigger parts, a cover part is formed on the side surface of each key board facing the substrate so as to cover the corresponding plurality of indicator lights, and each key board is at least partially arranged as a light-permeable material so as to allow the corresponding plurality of indicator lights to transmit light. The design of shroud portion can cover the pilot lamp in the keypad, avoids the loss of light to make luminous comparatively even, the light of luminous pilot lamp is seen by the operator through the printing opacity part of keypad.

Description

Key structure, touch screen and electronic equipment

Technical Field

The utility model relates to the technical field of keys, in particular to a key structure, a touch screen and electronic equipment.

Background

In the existing electronic equipment, a thin film key or a capacitive touch key is generally adopted for triggering control, in order to facilitate the identification of a key triggering state, a key indicator lamp is generally correspondingly arranged, however, the existing key indicator lamp is generally in backlight display after being arranged, the condition that the light distribution is uneven is easy to occur in a part of light-transmitting display structure, and the operator is not facilitated to use and observe.

Disclosure of Invention

The utility model mainly aims to provide a key structure, a touch screen and electronic equipment, and aims to solve the problems that an indicator lamp in the existing key structure is not easy to observe and backlight display or light transmission light is unevenly distributed.

In order to achieve the above object, the present utility model provides a key structure, comprising:

a substrate, on which a connection circuit is formed, and a side surface of which is provided with a plurality of trigger parts which are electrically connected with the connection circuit and are arranged at intervals;

the plurality of indicator light structures comprise a plurality of indicator lights which are arranged on the substrate and are uniformly distributed on the periphery of the corresponding trigger part, and each indicator light is electrically connected with the connecting circuit; the method comprises the steps of,

the key boards are fixedly installed on the base plate and respectively correspond to the triggering parts, cover parts are formed on the side faces of the key boards facing the base plate so as to cover the corresponding indicator lamps, and at least part of each key board is made of a light-permeable material so that the corresponding indicator lamps can be light-permeable.

Optionally, a plurality of first grooves are concavely formed on the side surface, facing the substrate, of each key board, and each first groove covers the corresponding indicator lamp;

the cover portion includes the plurality of first grooves.

Optionally, each of the key boards includes a main body portion and a plurality of protruding portions disposed on a peripheral side of the main body portion, the plurality of first grooves are disposed on the plurality of protruding portions, and the main body portion is fixed to the triggering portion.

Optionally, the outer cover of the base plate is provided with a cover shell, the cover shell is provided with a plurality of through holes corresponding to the plurality of key boards so as to enable the plurality of key boards to penetrate through, and the through holes are matched with the shape of the key boards.

Optionally, the end of the keymat exposed from the through hole is flush with the end face of the housing; and/or the number of the groups of groups,

the face mask is attached to the end face of the housing, a plurality of annular transparent areas are formed on the surface of the mask, and the annular transparent areas are arranged at intervals and are used for corresponding to the plurality of indicator lamps.

Optionally, the keypad is made of frosted material.

Optionally, the middle part of the key board is fixed on the triggering part through back glue; and/or the number of the groups of groups,

the side face of each key board, which faces the base plate, is provided with two positioning columns which are arranged at intervals, and the base plate is correspondingly provided with positioning grooves which are in plug-in fit with the positioning columns.

Optionally, the substrate is configured as a circuit board, and the plurality of copper sheet areas exposed on the surface of the circuit board form the plurality of triggering parts, so as to generate an electrical signal when the corresponding key board is touched.

The utility model also provides a touch screen, which comprises the key structure, wherein the key structure at least comprises:

a substrate, on which a connection circuit is formed, and a side surface of which is provided with a plurality of trigger parts which are electrically connected with the connection circuit and are arranged at intervals;

the plurality of indicator light structures comprise a plurality of indicator lights which are arranged on the substrate and are uniformly distributed on the periphery of the corresponding trigger part, and each indicator light is electrically connected with the connecting circuit; the method comprises the steps of,

the key boards are fixedly installed on the base plate and respectively correspond to the triggering parts, cover parts are formed on the side faces of the key boards facing the base plate so as to cover the corresponding indicator lamps, and at least part of each key board is made of a light-permeable material so that the corresponding indicator lamps can be light-permeable.

The utility model further provides electronic equipment comprising the touch screen.

According to the technical scheme, when an operator touches the corresponding key board by fingers, the triggering part can generate an electric signal, so that the triggering of a connecting circuit on the substrate is realized, meanwhile, the indicator lamps are automatically lightened to play a role of prompting, the indicator lamps are uniformly distributed on the peripheral sides of the corresponding triggering part, so that the illumination is uniform, the indicator lamps are covered in the key board by the design of the cover part, the light loss of the indicator lamps is avoided, the light of the illuminated indicator lamps is observed by the operator through the light transmission part of the key board, the whole structure is simple, the peripheral sides of the key boards form light bands due to the light transmission of the indicator lamps when the operator touches the key board, and the operator can clearly trigger the key.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of an embodiment of a touch screen according to the present utility model;

FIG. 2 is an exploded perspective view of the touch screen of FIG. 1;

FIG. 3 is an exploded perspective view of the key sheet and base plate of FIG. 2 mated;

FIG. 4 is a perspective view of the key sheet of FIG. 2;

FIG. 5 is a schematic view of the engagement of the base plate and indicator light of FIG. 2;

fig. 6 is a schematic view of the mask of fig. 1.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				1000	Touch screen	31	Main body part
100	Key structure	32	Convex part
				1	Substrate board	33	Positioning column
11	Trigger part	200	Housing shell
				12	Positioning groove	210	Through hole
21	Indicating lamp	300	Facial mask
				3	Key board	310	Annular transparent region
3a	First groove	400	Bottom shell

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the case where a directional instruction is involved in the embodiment of the present utility model, the directional instruction is merely used to explain the relative positional relationship, movement condition, etc. between the components in a specific posture, and if the specific posture is changed, the directional instruction is changed accordingly.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The utility model provides a key structure, a touch screen and electronic equipment, and aims to solve the problems that an indicator lamp in the existing key structure is not easy to observe and backlight display or light transmission light distribution is uneven. Fig. 1 to fig. 6 are embodiments of a touch screen provided by the present utility model.

Referring to fig. 2 to 4, the key structure 100 includes a substrate 1, a plurality of indicator light 21 structures and a plurality of key boards 3, wherein a connection circuit is formed on the substrate 1, a plurality of trigger portions 11 electrically connected with the connection circuit and arranged at intervals are disposed on a side surface of the substrate 1, each indicator light 21 structure includes a plurality of indicator lights 21 disposed on the substrate 1 and uniformly distributed on a peripheral side of the corresponding trigger portion 11, each indicator light 21 is electrically connected with the connection circuit, the plurality of key boards 3 are fixedly mounted on the substrate 1 and respectively correspond to the plurality of trigger portions 11, a cover portion is formed on a side surface of each key board 3 facing the substrate 1 to cover the corresponding plurality of indicator lights 21, and each key board 3 is at least partially made of a light-permeable material for the corresponding plurality of indicator lights 21 to transmit light.

In the technical scheme of the utility model, when an operator touches the corresponding key board 3 by fingers, the triggering part 11 can generate an electric signal, so that the triggering of a connecting circuit on the substrate 1 is realized, meanwhile, the indicator lamps 21 are automatically lightened to play a role in prompting, as the indicator lamps 21 are uniformly distributed on the periphery of the corresponding triggering part 11, the luminescence is uniform, the indicator lamps 21 can be covered in the key board 3 by the design of the cover part, the light loss of the light is avoided, the light of the luminous indicator lamps 21 is observed by the operator through the light-transmitting part of the key board 3, the whole structure is simple, the periphery of each key board 3 forms a light band due to the light transmission of the indicator lamps 21 when the operator touches the key board, and the operator can clearly trigger the key easily.

In one embodiment, an annular groove is disposed at the bottom of the keypad 3, and the annular groove can cover a plurality of corresponding indicator lamps 21 at the same time, so as to form a cover portion, which is understood that at least the top wall of the annular groove needs to be made of a light-transmitting material.

In another embodiment, a plurality of first grooves 3a are concavely formed on the side surface of each key board 3 facing the substrate 1, and each first groove 3a covers the corresponding indicator lamp 21, and the cover portion includes a plurality of first grooves 3a. At this time, the number of the first grooves 3a is set according to the number of the indication lamps 21 to achieve the cover effect, and it is understood that in this embodiment, at least the top wall of each first groove 3a and the portion between the adjacent two first grooves 3a need to be made of a light-transmitting material, so that a relatively uniform halation is observed by the human eye instead of several light emitting points.

It is understood that the shape of the key board 3 does not affect the function, referring to fig. 4, in this embodiment, each key board 3 includes a main body 31 and a plurality of protrusions 32 disposed on the periphery of the main body 31, a plurality of first grooves 3a are disposed on the protrusions 32, and the main body 31 is fixed to the trigger 11. Specifically, four indicator lamps 21 are uniformly distributed in the embodiment, and four corresponding protrusions 32 are arranged, so that the overall shape of the key board 3 is in a cross shape, and when the key board 3 is installed, an operator can align the first groove 3a with the indicator lamps 21 more easily. In other embodiments, the keypad 3 may be cylindrical, square, etc., which the present utility model is not limited to.

Further, the outer cover of the base plate 1 is provided with a cover shell 200, the cover shell 200 is provided with a plurality of through holes 210 corresponding to the plurality of key boards 3, so that the plurality of key boards 3 can be penetrated, and the through holes 210 are matched with the shape of the key boards 3. The cover 200 plays a role in protection and assembly, and it can be understood that when the keypad 3 is configured in a cross shape, the through holes 210 are correspondingly configured, which plays a role in exposing the keys and plays a role in positioning and preventing rotation.

Furthermore, the end of the keypad 3 exposed from the through hole 210 is flush with the end surface of the housing 200, so that the appearance is smooth, and the operator does not feel a touching boundary during use, thereby improving the experience.

In order to improve the aesthetic degree and protect the electronic screen, a mask 300 is usually attached to an end surface of the housing 200, in this embodiment, referring to fig. 1 and 6, a plurality of annular transparent areas 310 are formed on the surface of the mask 300, where the annular transparent areas 310 are arranged at intervals, and each annular transparent area 310 is used for corresponding to a plurality of indicator lamps 21, that is, when an operator uses the electronic screen, due to the arrangement of the annular transparent areas 310, after the key board 3 is triggered, annular light can be formed at the periphery of the key position, so that the electronic screen has obvious vision and good aesthetic degree.

The utility model is not limited to the material of the key sheet 3, in one embodiment, the key sheet 3 is made of transparent material, in particular plastic or glass material, and is transparent as a whole, so that good light transmittance is ensured, in other embodiments, the key sheet 3 is made of frosted material, the frosted material itself can reflect and refract light, the plurality of indicator lamps 21 are distributed in a dot shape, and strong light positions and weak light positions exist when the indicator lamps are in light display, so that the effect observed by an operator when the indicator lamps are in light display is uniformly distributed light, no light spots appear due to the frosted material, and the key sheet 3 is preferably made of frosted milky white material.

Further, the present utility model is not limited to the fixing manner of the key sheet 3 and the substrate 1, in one embodiment, the middle portion of the key sheet 3 is fixed on the triggering portion 11 by the back glue, the back glue may be pre-adhered on the key sheet 3, and the back glue is opposite to the triggering portion 11 during matching, so that the fixed connection can be realized, and when the key sheet 3 is composed of the main body 31 and the plurality of convex portions 32, the back glue is correspondingly arranged on the main body 31 to be adhered on the triggering portion 11.

In other embodiments, a snap-fit connection may be provided to effect the securement, which is not overly limiting to the utility model.

In view of the installation positioning, in one embodiment, the side surface of each key board 3 facing the substrate 1 is provided with two positioning posts 33 arranged at intervals, and the substrate 1 is correspondingly provided with positioning grooves 12 in plug-in fit with the positioning posts 33. The two positioning columns 33 can play a role in positioning and anti-rotation, and achieve the effect of matching and guiding, the position of the two positioning columns 33 is not limited, and the two positioning columns 33 can be oppositely arranged in the circumferential direction of the key board 3 or can be arranged at the same side at smaller intervals. It will be appreciated that the positioning slots 12 may be through slots, and the number of the positioning posts 33 may be more, which is reasonably set according to the size and shape of the key sheet 3.

Referring to fig. 4 to 5, in the present embodiment, the key board 3 is composed of a main body 31 and a plurality of protrusions 32, a back adhesive is disposed on the main body 31 to be adhered and fixed to the triggering portion 11 of the substrate 1, two positioning posts 33 are disposed on one of the protrusions 32, and the two positioning posts 33 are disposed at intervals and located on one side of the first recess 3a near the main body 31. The convex part 32 is used as the main positioning for connection, so that the matching area of the main body part 31 is ensured, and meanwhile, the positioning column 33 can avoid the triggering part 11, and the connection circuit layout is not affected.

In this embodiment, the substrate 1 is configured as a circuit board, and a plurality of copper sheet areas exposed on the surface of the circuit board form a plurality of triggering portions 11 for generating electrical signals when the corresponding keypad 3 is touched. The copper sheet area on the circuit board is flush with the surface of the circuit board, and is triggered by the capacitor, at the moment, the key board 3 is a capacitive touch key, and a user can trigger an electric signal by touching and simultaneously trigger a light effect. In other embodiments, the substrate 1 may be configured as a circuit, resistor-coupled structure, and the keypad 3 may be configured as a switch trigger, which will not be described in detail herein.

According to the technical scheme, the key boards 3 are arranged along the same straight line, four first grooves 3a are arranged on each key board 3 and correspond to four LED lamps on the base plate 1, two positioning columns 33 are arranged on the side of one first groove 3a, a plurality of positioning grooves 12 are arranged on the base plate 1 and correspond to the positioning columns 33, the main body part 31 is cylindrical, the circular end face of the main body part is provided with back glue, the back glue is directly adhered to a copper skin area on the base plate 1, the copper skin area is capacitive touch type, when the key board 3 is touched, corresponding key switches are turned on, four LED lamps can uniformly transmit light through the key board 3 made of frosted materials, then the assembled key board 3 and the base plate 1 are assembled on the cover shell 200, the key board 3 can be flush with the front face of the cover shell 200 through a through hole 210 of the cover shell 200, the face mask 300 is adhered on the front face of the cover 200, an annular transparent area 310 is arranged in the area corresponding to the key, when the four LED lamps emit light, the key board 3 can be transmitted to the annular transparent area 310, and when an operator has touch action outside, the annular lamp bands can be seen. It will be appreciated that the color of the indicator light 21 corresponding to the different key pads 3 may have red, green or other colors of light, which may represent the meaning of the indication of the different keys.

In this embodiment, the key board 3 is fixed on the substrate 1 through the positioning posts 33 and the back glue, the structure is simple, the four indicator lamps 21 are arranged in a surrounding manner to be capable of transmitting light uniformly, the emitted light can uniformly transmit the annular transparent area 310 of the mask 300 to form an annular light band, so that an operator has better feeling, a touch key can be made when the touch screen 1000 is arranged, the key is practical in the occasion with obvious requirement for a specific key, and a push key can be made on other components.

The present utility model also provides a touch screen 1000, please refer to fig. 1 to 2, including the above-mentioned key structure 100, and the touch screen 1000 includes all the technical features of the above-mentioned key structure 100, so that the technical effects brought by all the above-mentioned technical features are also provided, and will not be described in detail herein. Further, the shell of the touch screen 1000 is obtained by buckling the bottom shell 400 and the cover shell 200, the substrate 1 is placed in a space enclosed by the bottom shell 400 and the cover shell 200, and the keypad 3 is exposed in the through hole 210 of the cover shell 200, it can be understood that when the mask 300 is provided, the annular transparent area 310 corresponds to the plurality of indicator lamps 21, the middle position of the annular transparent area 310 forms a touch area corresponding to the keypad 3, the mask 300 at least should ensure that the plurality of annular transparent areas 310 have good light transmittance, and the rest can be provided with a coating with color or texture. The limiting of the base plate 1 in the shell can be realized through the positioning buckling and the internal shape design of the bottom shell 400 and the cover cap, and the base plate 1 can be installed and positioned only by arranging the matched guide posts and the through holes without independently arranging a fixing structure of the base plate 1.

The utility model also provides an electronic device, which comprises the touch screen 1000, and the electronic device comprises all the technical characteristics of the touch screen 1000, so that the electronic device also has the technical effects brought by all the technical characteristics, and the technical effects are not repeated here.

Specifically, the electronic device may be a notebook, a tablet (ipad), a desktop, a server, a display, and various peripherals in the computer field; mobile phones, telephones and other various terminals and local side devices in the network communication field can also be included; intelligent wearable devices in the consumer electronics field, traditional household appliances, and various digital products; and can also comprise industrial personal computers, automobiles, various instruments and meters, control equipment and the like in the industrial control field.

The foregoing description of the preferred embodiments of the present utility model should not be construed as limiting the scope of the utility model, but rather should be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model as defined by the following description and drawings or any application directly or indirectly to other relevant art(s).

Claims (10)

1. A key structure, comprising:

a substrate, on which a connection circuit is formed, and a side surface of which is provided with a plurality of trigger parts which are electrically connected with the connection circuit and are arranged at intervals;

the plurality of indicator light structures comprise a plurality of indicator lights which are arranged on the substrate and are uniformly distributed on the periphery of the corresponding trigger part, and each indicator light is electrically connected with the connecting circuit; the method comprises the steps of,

the key boards are fixedly installed on the base plate and respectively correspond to the triggering parts, cover parts are formed on the side faces of the key boards facing the base plate so as to cover the corresponding indicator lamps, and at least part of each key board is made of a light-permeable material so that the corresponding indicator lamps can be light-permeable.

2. The key structure according to claim 1, wherein a plurality of first grooves are concavely formed in a side surface of each key board facing the substrate, and each first groove covers the corresponding indicator lamp;

the cover portion includes the plurality of first grooves.

3. The key structure according to claim 2, wherein each of the key sheets includes a main body portion and a plurality of protruding portions provided separately on a peripheral side of the main body portion, the plurality of first grooves being provided on the plurality of protruding portions, the main body portion being fixed to the trigger portion.

4. A key structure according to claim 1 or 3, wherein the outer cover of the base plate is provided with a cover, and the cover is provided with a plurality of through holes corresponding to the plurality of key boards for the plurality of key boards to pass through, and the through holes are matched with the shape of the key boards.

5. The key structure according to claim 4, wherein an end of the key sheet exposed from the through hole is arranged flush with an end surface of the housing; and/or the number of the groups of groups,

the face mask is attached to the end face of the housing, a plurality of annular transparent areas are formed on the surface of the mask, and the annular transparent areas are arranged at intervals and are used for corresponding to the plurality of indicator lamps.

6. The key structure of claim 1, wherein the key sheet is provided as a frosted material.

7. The key structure of claim 1, wherein a middle portion of the key sheet is fixed to the trigger portion by a back adhesive; and/or the number of the groups of groups,

the side face of each key board, which faces the base plate, is provided with two positioning columns which are arranged at intervals, and the base plate is correspondingly provided with positioning grooves which are in plug-in fit with the positioning columns.

8. The key structure of claim 1, wherein the substrate is configured as a circuit board, and the plurality of copper skin areas exposed on the surface of the circuit board form the plurality of triggering portions for generating electrical signals when the corresponding key board is touched.

9. A touch screen comprising a key structure as claimed in any one of claims 1 to 8.

10. An electronic device comprising the touch screen of claim 9.