CN209312632U - Key module and terminal device comprising it - Google Patents

Abstract

The utility model relates to technical field of electronic equipment, more particularly to a kind of key module and the terminal device comprising it, wherein, key module is fixed on the frame of terminal device, including key pcb board, button cap and fixed frame, key pcb board is fixed on frame by fixed frame, button cap is installed on the side of key pcb board, button cap is made of elastic material, button cap includes press section and fixed part, key on the face key pcb board of press section is convexly equipped with positioning column on fixed part, and the location hole with positioning column interference fit is offered on key pcb board.By the way that button cap is made of elastic material, so that press section and positioning column can elastic telescopics under external force, press section can be abutted with the key on key pcb board, realize the operation of pressing keys, and Caton is less prone to when the pressing of press section, and positioning column is elastic material, and the interference fit with location hole may be implemented, and reduces the fixation difficulty of button cap and key pcb board.

Description

Key module and terminal device comprising it

Technical field

It is set the utility model relates to technical field of electronic equipment more particularly to a kind of key module and comprising its terminal It is standby.

Background technique

The key of electronic equipment is usually provided on the frame of equipment at present, and key includes key pcb board and button cap, key Cap mostly uses rigid plastics to be made greatly, and the via clearance on button cap and frame cooperates, and button cap is realized by special structure Pressing resets, to pass through the key starting or closing on pressing keys cap control button pcb board.Existing key is pressing When the case where being easy to appear button cap Caton, be not convenient to use, while existing press-key structure is complicated, manufacturing cost is high, installation Inconvenience, in addition, complicated press-key structure is also not easy to the narrow frame design of entire electronic equipment.

Utility model content

One purpose of the utility model embodiment is: providing a kind of key module, structure is simple, and button cap is not easy Caton manufactures and easy for installation, at low cost.

Another purpose of the utility model embodiment is: a kind of terminal device is provided, it is at low cost, it can be achieved that narrow side Frame design.

For this purpose, the utility model embodiment uses following technical scheme:

In a first aspect, providing a kind of key module, it is fixed on the frame of terminal device, including key pcb board, key Cap and fixed frame, the key pcb board are fixed on the frame by the fixed frame, and the button cap is installed on the key The side of pcb board, the button cap are made of elastic material, and the button cap includes press section and fixed part, the pressing Key on key pcb board described in portion's face is convexly equipped with positioning column on the fixed part, offered on the key pcb board with The location hole of the positioning column interference fit, the positioning column and the location hole grafting are so that the button cap and the key Pcb board is fixed.

As a kind of preferred embodiment of key module, multiple press sections are alternatively arranged on the fixed part, each The two sides of the press section are respectively arranged with the positioning column.

As a kind of preferred embodiment of key module, the fixed part is equipped with mounting hole, and the press section includes ontology, One end of the ontology is plugged to be connect in the mounting hole and by elasticity arm with the hole wall of the mounting hole, and the ontology is set There is the center of one end of the elasticity arm to be convexly equipped with the abutting column with the key selective exposure.

As a kind of preferred embodiment of key module, the button cap is made of rubber or silica gel.

As a kind of preferred embodiment of key module, the key pcb board is equipped with indicator light, is arranged outside the indicator light There is light leakage foam, the side of the indicator light, which abuts, light-guiding pillar, and the light-guiding pillar is fixed in the light-conductive hole of the frame.

As a kind of preferred embodiment of key module, the peripheral annular of the light-guiding pillar is provided with multiple convex ribs, described to lead Light beam is installed by the convex ribs and light-conductive hole interference fit.

As a kind of preferred embodiment of key module, the key pcb board is equipped with remote control module, the remote control module Side is provided with the only remote-controlled window for infrared light, and the remote-controlled window is fixed in the remote control hole on the frame.

As a kind of preferred embodiment of key module, the fixed frame includes that the first connecting plate connected vertically and second connect Two third connecting plates are arranged far from one end interval of first connecting plate in fishplate bar, second connecting plate, and the third connects Fishplate bar is vertical with second connecting plate, and the third connecting plate is located at described second with first connecting plate and connect The opposite two sides of plate, first connecting plate are detachably connected with the frame, and the key pcb board is fixed by screws in institute State the side that third connecting plate deviates from second connecting plate.

As a kind of preferred embodiment of key module, be provided on second connecting plate on the key pcb board The corresponding abutting plate of the key position, the plate that abuts are connected to the side that the key pcb board deviates from the key.

Second aspect also provides a kind of terminal device, including frame, and the key is detachably provided on the frame Module.

As a kind of preferred embodiment of terminal device, the back side of the frame opens up module mounting groove, the key module Including key pcb board and button cap, the slot bottom of the module mounting groove is offered and the press section position pair on the button cap The through-hole answered, the press section partially pass through the front that the through-hole exposes to the frame.

As a kind of preferred embodiment of terminal device, the key module is fixed in the mounting groove by screw, and Side of the key pcb board far from the button cap is concordant with the back side of the frame.

As a kind of preferred embodiment of terminal device, the slot bottom of the mounting groove is convexly equipped with limited post, on the button cap Offer the limit hole mating with the limited post.

The utility model embodiment has the beneficial effect that by the way that button cap to be made of elastic material, so that press section It can be abutted under external force with the key on key pcb board in elastic telescopic, press section with positioning column, realize pressing keys Operation, and Caton is less prone to when the pressing of press section, and positioning column is elastic material, and the interference with location hole may be implemented and match It closes, reduces the fixation difficulty of button cap and key pcb board.

Detailed description of the invention

The utility model is described in further detail below according to drawings and examples.

Fig. 1 is the key module of the utility model embodiment and the assembling schematic diagram of frame.

Fig. 2 is enlarged diagram at the A of Fig. 1.

Fig. 3 is the decomposition diagram of the key module of the utility model embodiment.

Fig. 4 is the partial enlargement diagram after the key module of the utility model embodiment and the assembling of frame.

In figure:

1, key pcb board；11, key；12, location hole；

2, button cap；21, press section；211, ontology；212, elasticity arm；22, fixed part；23, positioning column；24, limit hole；

3, fixed frame；31, the first connecting plate；32, the second connecting plate；33, third connecting plate；34, plate is abutted；

4, frame；41, light-conductive hole；42, it is remotely controlled hole；43, module mounting groove；44, through-hole；

5, light-guiding pillar；6, remote-controlled window.

Specific embodiment

The technical issues of to solve the utility model, the technical solution of use and the technical effect that reaches are clearer, It is described in further detail below in conjunction with technical solution of the attached drawing to the utility model embodiment, it is clear that described reality Applying example is only the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, It is practical new to belong to this for those skilled in the art's every other embodiment obtained without creative efforts The range of type protection.

In the description of the present invention, unless otherwise clearly defined and limited, term " connected ", " connection ", " Gu It is fixed " it shall be understood in a broad sense, for example, it may be being fixedly connected, it may be a detachable connection, or integral；It can be mechanical connect It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary The interaction relationship of the connection in portion or two elements.For the ordinary skill in the art, it can be managed with concrete condition Solve the concrete meaning of above-mentioned term in the present invention.

In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or it "lower" may include that the first and second features directly contact, and also may include that the first and second features are not direct contacts but lead to Cross the other characterisation contact between them.Moreover, fisrt feature includes above the second feature " above ", " above " and " above " One feature is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.First is special Sign is directly below and diagonally below the second feature including fisrt feature under the second feature " below ", " below " and " below ", or only Indicate that first feature horizontal height is less than second feature.

As shown in Figures 1 to 4, the utility model provides a kind of terminal device, such as electronic plane, electronic whiteboard, meeting are flat Plate etc., terminal device include frame 4, are provided with key module on frame 4.It is specifically intended that: all noun of locality is being " just in text Face " and " back side " be with terminal device using when orientation illustrate that by taking frame 4 as an example, the front of frame 4 refers to user In normal use terminal device, for frame 4 towards the one side of user, the back side of frame 4 refers to frame 4 away from user's One side.

In the present embodiment, key module includes key pcb board 1, button cap 2 and fixed frame 3, and key pcb board 1 passes through solid Determine frame 3 and be fixed on frame 4, button cap 2 is installed on the side of key pcb board 1, and button cap 2 is made of elastic material, button cap 2 include press section 21 and fixed part 22, the key 11 on 21 face key pcb board 1 of press section, is convexly equipped with positioning on fixed part 22 Column 23, offer on key pcb board 1 location hole 12 being interference fitted with positioning column 23, positioning column 23 and 12 grafting of location hole with Keep button cap 2 and key pcb board 1 fixed.By the way that button cap 2 to be made of elastic material, so that press section 21 and positioning column 23 can abut in elastic telescopic, press section 21 with the key 11 on key pcb board 1 under external force, realize pressing keys 11 Operation, and when press section 21 presses, is less prone to Caton, and positioning column 23 is elastic material, be may be implemented and location hole 12 Interference fit reduces the fixation difficulty of button cap 2 and key pcb board 1.

In one embodiment, multiple press sections 21 are alternatively arranged on fixed part 22, the two sides of each press section 21 are set respectively It is equipped with a positioning column 23.A positioning column 23 is respectively set in the two sides of each press section 21, can prevent press section 21 from existing It pulls the press section 21 on side mobile when pressing, guarantees that each press section 21 position corresponding with key 11 will not change, Guarantee accuracy and reliability when pressing keys 11.

In the present embodiment, multiple press sections 21 are along arranged in a straight line.

Optionally, fixed part 22 is equipped with mounting hole, and press section 21 includes ontology 211, and one end of ontology 211 plugs and pacifies It is connect in dress hole and by elasticity arm 212 with the hole wall of mounting hole, ontology 211 is equipped with the center projection of one end of elasticity arm 212 There is the abutting column 213 with 11 selective exposure of key.The setting of elasticity arm 212 can be realized with elp button cap 2 to key 11 Pressing operation, while button cap 2 also can be effectively prevented and occur the case where Caton after pressing.

In the present embodiment, elasticity arm 212 can be located at the slim elastic plate of 211 circumference of ontology for ring.

Specifically, press section 21, fixed part 22 and positioning column 23 use the integrally manufactured molding of silica gel.Certainly, button cap 2 is not It is limited to be made of silica gel, can also be made of rubber.

In one embodiment, key pcb board 1 is equipped with indicator light, is arranged with light leakage foam outside indicator light, and the one of indicator light Side, which abuts, light-guiding pillar 5, and light-guiding pillar 5 is fixed in the light-conductive hole 41 of frame 4.By the way that light leakage foam is arranged, can prevent from referring to The light diverging for showing lamp, realizes optically focused, and light-guiding pillar 5 can transmit the light for being located at the indicator light in the key module in frame 4 To outside frame 4, user is prompted.

In the present embodiment, the peripheral annular of light-guiding pillar 5 is provided with multiple convex ribs 61, and light-guiding pillar 5 passes through convex ribs 61 and leads The interference fit installation of unthreaded hole 41.Interference fit can be such that the i.e. position after being inserted into light-conductive hole 41 of light-guiding pillar 5 fixes, and reduce and lead The fixation difficulty of light beam 5.

In one embodiment, key pcb board 1 is equipped with remote control module, and the side of remote control module is provided with only for infrared light The remote-controlled window 6 of transmission, remote-controlled window 6 are fixed in the remote control hole 42 on frame 4.

In one embodiment, fixed frame 3 includes the first connecting plate 31 connected vertically and the second connecting plate 32, the second connecting plate Two third connecting plates 33 are arranged in 32 one end intervals far from the first connecting plate 31, and third connecting plate 33 and the second connecting plate 32 hang down Directly, and third connecting plate 33 and the first connecting plate 31 two sides that be located at the second connecting plate 32 opposite, the first connecting plate 31 with Frame 4 is detachably connected, and key pcb board 1 is fixed by screws in the side that third connecting plate 33 deviates from the second connecting plate 32.

The back side of frame 4 opens up module mounting groove 43, and the slot bottom of module mounting groove 43 offers and the pressing on button cap 2 The corresponding through-hole 44 in 21 position of portion, press section 21 partially passes through the front that through-hole 44 exposes to frame 4.

Key module is fixed in module mounting groove 43 by screw, and the key pcb board 1 of key module is far from button cap 2 side is concordant with the back side of frame 4.Specifically, the first connecting plate 31 is connect by screw with the back side of frame 4, and second connects Fishplate bar 32 and third connecting plate 33 are located in module mounting groove 43 to be connect with key pcb board 1.

In the present embodiment, abutting corresponding with 11 position of key on key pcb board 1 is provided on the second connecting plate 32 Plate 34 abuts plate 34 and is connected to the side that key pcb board 1 deviates from key 11.Plate 34 is abutted by setting, can prevent from pressing When key 11, key pcb board 1 is jacked up.

Optionally, the slot bottom of module mounting groove 43 is convexly equipped with limited post, offers on button cap 2 mating with limited post Limit hole 24.

In one embodiment, the frame 4 of terminal device includes upper side frame, lower frame, left frame and left frame, wherein key Module is detachably arranged on lower frame.

In the description of this article, it is to be understood that term " on ", "lower", " right side ", etc. orientation or positional relationships be based on Orientation or positional relationship shown in the drawings is merely for convenience of description and simplification and operates, rather than the dress of indication or suggestion meaning It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the utility model Limitation.In addition, term " first ", " second ", are only used to distinguish between description, have no special meaning.

In the description of this specification, the description of reference term " embodiment ", " example " etc. means to combine the embodiment Or example particular features, structures, materials, or characteristics described are contained at least one embodiment or example of the utility model In.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.

In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this narrating mode of specification be only be to understand device, those skilled in the art should It considers the specification as a whole, the technical solutions in the embodiments can also be appropriately combined, and forming those skilled in the art can With the other embodiments of understanding.

Technical principle of the utility model has been described above with reference to specific embodiments.These descriptions are intended merely to explain this reality With novel principle, and it cannot be construed to the limitation to scope of protection of the utility model in any way.Based on the explanation herein, Those skilled in the art, which does not need to pay for creative labor, can associate with other specific implementation modes of this utility model, These modes are fallen within the protection scope of the utility model.

Claims (13)

1. a kind of key module, is fixed on the frame of terminal device, which is characterized in that including key pcb board, button cap and Fixed frame, the key pcb board are fixed on the frame by the fixed frame, and the button cap is installed on the key PCB The side of plate, the button cap are made of elastic material, and the button cap includes press section and fixed part, and the press section is just To the key on the key pcb board, positioning column is convexly equipped on the fixed part, offered on the key pcb board with it is described The location hole of positioning column interference fit, the positioning column and the location hole grafting are so that the button cap and the key PCB Plate is fixed.

2. key module according to claim 1, which is characterized in that be alternatively arranged on the fixed part it is multiple it is described by Splenium, the two sides of each press section are respectively arranged with the positioning column.

3. key module according to claim 1, which is characterized in that the fixed part is equipped with mounting hole, the pressing Portion includes ontology, and one end of the ontology is plugged to be connected in the mounting hole and by the hole wall of elasticity arm and the mounting hole It connects, the center that the ontology is equipped with one end of the elasticity arm is convexly equipped with the abutting column with the key selective exposure.

4. key module according to claim 1, which is characterized in that the button cap is made of rubber or silica gel.

5. key module according to claim 1, which is characterized in that the key pcb board is equipped with indicator light, the finger Show and be arranged with light leakage foam outside lamp, the side of the indicator light, which abuts, light-guiding pillar, and the light-guiding pillar is fixed on the frame Light-conductive hole in.

6. key module according to claim 5, which is characterized in that the peripheral annular of the light-guiding pillar is provided with multiple convex Muscle, the light-guiding pillar are installed by the convex ribs and light-conductive hole interference fit.

7. key module according to claim 1, which is characterized in that the key pcb board is equipped with remote control module, described The side of remote control module is provided with the only remote-controlled window for infrared light, and the remote-controlled window is fixed on the remote control on the frame In hole.

8. key module according to any one of claims 1 to 7, which is characterized in that the fixed frame includes vertical connection The first connecting plate and the second connecting plate, one end interval setting two of second connecting plate far from first connecting plate the Three connecting plates, the third connecting plate is vertical with second connecting plate, and the third connecting plate and first connecting plate The opposite two sides of second connecting plate are located at, first connecting plate is detachably connected with the frame, the key Pcb board is fixed by screws in the side that the third connecting plate deviates from second connecting plate.

9. key module according to claim 8, which is characterized in that be provided on second connecting plate and the key The corresponding abutting plate of the key position on pcb board, the plate that abuts are connected to the key pcb board away from the key Side.

10. a kind of terminal device, including frame, which is characterized in that be detachably arranged on the frame just like claim 1 to 9 Any one key module.

11. terminal device according to claim 10, which is characterized in that the back side of the frame opens up module mounting groove, The key module includes key pcb board and button cap, the slot bottom of the module mounting groove offer on the button cap The corresponding through-hole in press section position, the press section partially pass through the front that the through-hole exposes to the frame.

12. terminal device according to claim 11, which is characterized in that the key module is fixed on described by screw In mounting groove, and side of the key pcb board far from the button cap is concordant with the back side of the frame.

13. terminal device according to claim 11, which is characterized in that the slot bottom of the mounting groove is convexly equipped with limited post, The limit hole mating with the limited post is offered on the button cap.