Key structure and electronic equipment

Abstract

The utility model discloses a button structure and an electronic device, comprising a button body, a springback filling body and a button cavity, the button cavity is arranged on a housing of the electronic device and copies with the button body, the button body is assembled in the button cavity and is buckled with the button cavity, the springback filling body is arranged in the button cavity, the springback filling body is arranged in the button cavity, and the springback filling body is arranged in the button cavity. The rebound filling body is filled between the bottom of the key body and the inner wall of the bottom of the key cavity and is used for applying elastic force to the key body so that the upper surface of the key body protrudes out of the key cavity; according to the utility model, the assembly process of the key can be simplified, the flexibility of key assembly is increased, the key can be assembled on the shell in advance, the key is also suitable for being assembled after the whole product is assembled, and a user does not need to worry that the key falls off or even crushes the assembly in the assembly process.

Description

TECHNICAL FIELD

[0001] The utility model relates to key technical field especially, it relates to a key structure and electronic equipment. BACKGROUND

[0002] Reference Figure 1 At present, the various keys, buttons of handheld electronic product almost need to be installed by the shell side wall from the inside of the shell before the full cover, and the cap type structure of the larger skirt on the inside is used to prevent the key from sliding out of the hole. This design is undoubtedly reliable for the user. But it is not friendly for the factory side, because this design can only prevent the key from falling off in one direction, and it is easy to fall off or misplace before the cover is assembled, and it is easy to press the internal components or even damage them when pressing.

[0003] The above information disclosed in the background section is only included to enhance the understanding of the background of the present disclosure, and therefore can include information that does not form the prior art known to those of ordinary skill in the art at present. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is to provide a key structure and electronic equipment to solve the defect that the key is easy to fall off or misplace before the cover is assembled in the prior art.

[0005] The utility model adopts the technical scheme to solve the technical problem:

[0006] On the one hand, a key structure is constructed, which includes a key body, a rebound filling body and a key cavity, the key cavity is opened on the shell of the electronic device and is shaped with the key body, the key body is assembled into the key cavity and is buckled with it, the rebound filling body is filled between the bottom of the key body and the inner wall of the bottom of the key cavity and is used to apply elastic force to the key body so that the upper surface of the key body protrudes from the key cavity.

[0007] Further, in the key structure, the bottom of the key body is provided with a top rod for triggering the physical switch inside the electronic device, the bottom inner wall of the key cavity is provided with a first through hole communicated with the inside of the electronic device, the first through hole is opposite to the physical switch, and the top rod is opposite to the first through hole and the trigger end surface of the top rod is flush with the bottom outer wall of the key cavity.

[0008] Further, in the key structure, the bottom of the key body is provided with a group of anti-uncoupling, the top rod is arranged between the group of anti-uncoupling; the inner wall of the key cavity is provided with a group of anti-uncoupling walls which are buckled with the group of anti-uncoupling.

[0009] Further, in the key structure, the bottom of the key body is provided with a group of guide rods for limiting the pressing movement direction of the key body, the top rod is arranged between the group of guide rods, the bottom of the key cavity is provided with a group of second through holes for communicating with the inside of the electronic device, and the group of guide rods are opposite to the group of second through holes.

[0010] Further, in the key structure, the group of guide rods are arranged at the bottom of the key body and located at the two end positions, and a group of anti-unclamping devices are arranged on the side surface of the group of guide rods; the anti-unclamping device is buckled on the anti-unclamping wall through the second through hole.

[0011] Further, in the key structure, each anti-unclamping device extends towards or away from another anti-unclamping device; the anti-unclamping device and the anti-unclamping wall are provided with matching chamfers to facilitate the smooth buckling of the anti-unclamping device on the anti-unclamping wall.

[0012] Further, in the key structure, the bottom of the key body is provided with a group of limiting recesses between the two sides of the top rod and the group of guide rods, and a group of rebound filling bodies are adhered in the limiting recesses.

[0013] The non-penetrating area of the inner wall of the bottom of the key cavity is used for supporting a group of rebound filling bodies, and the bottom surface of the key cavity is further provided with two groups of vertical step surfaces, and one rebound filling body is arranged between each group of step surfaces to prevent the rebound filling body from being clamped into the through hole when the key body is pressed down.

[0014] Further, in the key structure, the cross-sectional dimensions of the group of guide rods are different, and the hole diameters of the group of second through holes are correspondingly different, so that the direction of the key body assembled into the key cavity is unique.

[0015] Further, in the key structure, the key body is made of plastic or metal material, and the rebound filling body is made of soft silicone material.

[0016] Further, in the key structure, the key body is a racetrack-shaped column, and the edge of the upper surface of the racetrack-shaped column is chamfered; and the top opening edge of the key cavity is chamfered.

[0017] In the second aspect, an electronic device is constructed, which comprises a shell and the key structure.

[0018] The key structure and the electronic equipment have the following beneficial effects: the utility model discloses can simplify the assembly process of key, has increased the flexibility of key assembly, can pre-assemble the key to the shell, is also suitable for assembling the key after the whole product assembly is completed, does not need to worry about falling off even crushing the component in the assembly process. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, obviously, the drawings in the following description are only the embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to the provided drawings without creative labor:

[0020] Figure 1 It is the schematic diagram of the key structure of the handheld electronic product,

[0021] Figure 2 It is the structure schematic diagram of the key body of the key structure in the utility model specific embodiment,

[0022] Figure 3 It is the structure schematic diagram of the key body,

[0023] Figure 4 It is the structure schematic diagram of the key cavity,

[0024] Figure 5 It is the structure schematic diagram of the rebound filling body,

[0025] Among them, the various signs in the drawing:

[0026] 1, key body;11, guide rod;12, anti-tripping;13, top rod;14, limit pit;15, chamfer;2, shell;21, key cavity;22, physical switch;211, first through hole;212, second through hole;213, anti-tripping wall;214, step surface;3, rebound filling body. DETAILED DESCRIPTION

[0027] In order to facilitate understanding the utility model, the following will be more comprehensive to the utility model with reference to relevant drawings.Described in the drawings, the typical embodiment of the utility model is given.However, the utility model can be realized in many different forms, and is not limited to the embodiments described in this paper.Contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.It should be understood that the embodiment of the utility model and the specific features in the embodiment are detailed description of the technical scheme of the application, and not the limitation of the technical scheme of the application, in the case of no conflict, the technical features in the embodiment of the utility model and the embodiment can be combined.

[0028] Reference Figures 2-4 The key structure of the embodiment includes a key body 1, a rebound filling body 3 and a key cavity 21. The key cavity 21 is formed on the shell 2 of the electronic device and is shaped like the key body 1. The key body 1 is assembled into the key cavity 21 and is buckled with the key cavity 21. The rebound filling body 3 is filled between the bottom of the key body 1 and the inner wall of the bottom of the key cavity 21 and is used to apply elastic force to the key body 1 so that the upper surface of the key body 1 slightly protrudes from the key cavity 21.

[0029] The electronic device can be a handheld electronic product, such as a tablet computer, a mobile phone or the like. The key cavity 21 can be formed on the side of the shell 2 of the electronic device, that is, the key structure is a side key, such as a power key, a volume key or the like. Of course, in other embodiments, the key cavity 21 can be on the front or the back, and the specific position is not limited. The embodiment is only an example.

[0030] The key body 1 is a racetrack-shaped column, and the generatrix direction of the key body 1 is consistent with the depth direction of the key cavity 21. The key cavity 21 is designed on the side of the product shell 2. The key cavity 21 is a completely shaped accommodating body of the key body 1. The key body 1 can be completely accommodated in the key cavity 21. The single-sided gap between the peripheral side wall of the key body 1 and the inner side wall of the key cavity 21 ensures that the key body 1 can move up and down and will not shake. For example, the gap is about 0.1 mm.

[0031] The edge of the upper surface of the racetrack-shaped column is finely rounded to form a rounded corner 15. The purpose is to eliminate the feeling of scratching or cutting the hand by the edge of the key body 1, so that the hand naturally feels smooth when contacting the key body 1. At the same time, the top opening edge of the key cavity 21 is also finely rounded. The purpose is to eliminate the feeling of scratching or cutting the hand when pressing the key body 1.

[0032] The upper surface of the key body 1 is a bevel that is adapted to the appearance of the shell 2. In the embodiment, the surface of the key body 1 is a bevel that is adapted to the non-symmetrical streamline structure of the side of the product shell 2. Therefore, the assembly of the key body 1 has directionality, and error-proofing treatment needs to be performed on the structure, which will be further explained below. Of course, it can be understood that if the side of the shell 2 is a symmetrical arc design, the key body 1 can be designed as a symmetrical structure that can be assembled in any direction.

[0033] The key body 1 can be made of plastic or metal material. In the application, a composite material of plastic PC and ABS is used, and injection molding is used. In other embodiments, if metal material is used, powder metallurgy process can be used to prepare it.

[0034] A top rod 13 is arranged in the middle of the bottom of the key body 1 to trigger the physical switch 22 inside the electronic device 2. The top rod 13 can be a square column, a circular column or any other shape column, and a cross-shaped column is adopted in the embodiment. A first through hole 211 is arranged in the middle of the inner wall of the bottom of the key cavity 21 to communicate with the inside of the electronic device. The first through hole 211 is opposite to the physical switch 22. The top rod 13 is opposite to the first through hole 211, and the triggering end surface of the top rod 13 is flush with the outer wall of the bottom of the key cavity 21.

[0035] In the embodiment, a set of anti-pulling-off 12 is arranged on the left and right of the bottom of the key body 1, and the top rod 13 is arranged between the set of anti-pulling-off 12. A set of anti-pulling-off walls 213 is arranged on the inner wall of the key cavity 21 to be buckled with the set of anti-pulling-off 12. A set of guide rods 11 is arranged on the bottom of the key body 1 to limit the pressing direction of the key body 1, and the top rod 13 is arranged between the set of guide rods 11. A set of second through holes 212 is arranged in the bottom of the key cavity 21 to communicate with the inside of the electronic device, and the set of guide rods 11 is opposite to the set of second through holes 212. The guide rod 11 can effectively prevent the unilateral lodging or even the key jamming of the key body 1 when the key body 1 moves up and down in the key cavity 21. The two guide rods 11 and the middle top rod 13 can effectively ensure the synchronization and stability of the key movement and prevent the risk of key jamming caused by unilateral sinking during the pressing process.

[0036] In theory, the anti-pulling-off 12 and the guide rod 11 can be independently arranged, but in order to save space, the anti-pulling-off 12 is designed at the end of the guide rod 11 in the embodiment. In the embodiment, the set of guide rods 11 is arranged at the two end positions of the bottom of the key body 1, and the set of anti-pulling-off 12 is arranged on the side surface of the end of the set of guide rods 11. The overall structure of the anti-pulling-off 12 and the guide rod 11 is a barb. The anti-pulling-off 12 can be designed to extend outward (i.e. extend away from the other anti-pulling-off 12) or inward (i.e. extend towards the other anti-pulling-off 12), and either way can achieve the key anti-pulling-off function. In the embodiment, the anti-pulling-off 12 is designed to extend outward. The anti-pulling-off 12 is buckled with the anti-pulling-off wall 213 after passing through the second through hole 212.

[0037] The bottom outer side (the outer side is the side away from the other anti-pulling-off 12) of the anti-pulling-off 12 at the end of the guide rod 11 of the key body 1 is designed with a chamfer, and correspondingly, the top edge of the anti-pulling-off wall 213 is also designed with a chamfer. The two chamfers are used in cooperation to make the key body 1 smoothly enter the key cavity 21, and the anti-pulling-off 12 is smoothly buckled on the anti-pulling-off wall 213.

[0038] The key rebound filling body 3 is an important part of the key body 1 that guarantees the full rebound after pressing. It is arranged between the bottom of the key body 1 and the inner wall of the bottom of the key cavity 21. In this embodiment, two key rebound filling bodies 3 are arranged between the two top rods 13 and the two guide rods 11. Specifically, referring to Figure 5 , the key rebound filling body 3 is a rectangular body. Referring to Figures 2-3 , the bottom of the key body 1 is provided with a set of limiting pits 14 between the two top rods 13 and the set of guide rods 11, which are limiting pits for fixing the rebound filling body 3. A set of the rebound filling bodies 3 are glued in the limiting pits 14. The rebound filling body 3 is made of soft silicone material similar to the prosthesis in the field of medical cosmetology, so that the key rebound force value is controlled around 225 gf, to obtain a better pressing feeling.

[0039] In this embodiment, the bottom inner wall of the key cavity 21 is provided with three through holes, the middle first through hole 211 is a circular hole for the top rod 13, and the two side second through holes are square and rectangular holes for the guide rods 11. The non-through area of the bottom inner wall of the key cavity 21 is used to support a set of the rebound filling bodies 3. The bottom surface of the key cavity 21 is also provided with two sets of vertical step surfaces 214 for limiting the rebound filling bodies 3. One rebound filling body 3 is arranged between each set of the step surfaces 214 to prevent the rebound filling body 3 from being stuck in the through holes 211 and 212 when the key body 1 is pressed down.

[0040] As mentioned above, in this embodiment, the shell 2 is a non-symmetrical streamline structure, so the assembly of the key body 1 has directionality. Therefore, the cross-sectional size of a set of the guide rods 11 is different, and the hole diameter of a set of the second through holes 212 is also different. One of the two second through holes 212 is a square hole and the other is a rectangular hole, and the hole diameters are designed to ensure that the corresponding guide rods 11 can pass through (with the anti-unclipping 12 at the end). In this way, the direction of the key body 1 when assembled into the key cavity 21 is unique, and the key body 1 cannot be installed into the key cavity 21 when the direction is incorrect, to prevent errors during key assembly.

[0041] The working mechanism of the key structure is as follows:

[0042] When the key structure is not pressed by external force, the key body 1 is supported by the rebound filling body 3 and is limited by the anti-tripping 12, and the key body 1 partially extends out of the key cavity 21. The rebound filling body 3 is supported by the bottom surface of the key cavity 21, and the height of the rebound filling body 3 is slightly greater than the distance from the bottom inner wall of the key cavity 21 to the bottom of the key body 1 in the limited state, so that the rebound filling body 3 pre-presses the key body 1 to a certain extent, thereby ensuring that the key body 1 fully rebounds.

[0043] When the key body 1 is pressed, it has three stroke sections: the first stroke is the deformation of the rebound filling body 3, at this time the rebound force of the key is about 225gf; as the key body 1 goes down, when the key top rod 13 touches the physical switch 22, the key body 1 enters the second stroke, at this time, in addition to the rebound force of the rebound filling body 3, the trigger force of the physical switch 22 is increased, and the physical switch 22 in the embodiment is in the form of a pot piece; in the second stroke, the rebound force of the key increases by about 100gf; when the top rod 13 presses the physical switch 22 to the pot piece overturning critical state, the rebound force of the pot piece suddenly disappears, and the key enters the third stroke; as the key continues to go down, the pot piece touches the contact inside the switch, and the switch is triggered at this time. After the function is realized, the external pressing force is removed, the physical switch 22 quickly recovers, and the rebound filling body 3 also quickly lifts the key body 1 again.

[0044] The key of the embodiment can be installed outside the shell 2, and the key is easy to install and difficult to remove outside the product shell 2, and is safe and reliable. The key body 1 and the key rebound filling body 3 can be pre-assembled into the key cavity 21, or the key can be installed after all other parts of the product are completely assembled, or the assembly of the key can be set at any post with relatively less work on the assembly line, which is very convenient and flexible. After assembly, the part of the key body 1 exposed outside the key cavity 21 is very small, and there is no part that can apply force in the opposite direction, so it is almost impossible to take out the key body 1 from the outside of the shell 2, even if a tool is used. The key body 1 can only be removed from the inside of the shell 2. In summary, the utility model can simplify the assembly process of the key, increase the flexibility of the key assembly, and can pre-assemble the key to the shell, or assemble the key after the entire product assembly is completed, without worrying about falling off or even damaging the components during the assembly process.

[0045] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0047] The terms "first", "second", and the like, which contain ordinal numbers, used in the specification of the present application can be used to explain various constituent elements, but the constituent elements are not limited by the terms. The purpose of using the terms is only to distinguish one constituent element from other constituent elements. For example, the first constituent element can be named as the second constituent element, and similarly, the second constituent element can also be named as the first constituent element without departing from the scope of the present application.

[0048] The embodiments of the present application are described above in conjunction with the drawings, but the present application is not limited to the specific embodiments described above, and the specific embodiments described above are only illustrative, but not restrictive, and those of ordinary skill in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the scope protected by the claims, which all belong to the protection of the present application.

Claims

1. A key structure, characterized in that: It includes a key body, a rebound filling body and a key cavity. The key cavity is opened on the shell of the electronic device and is shaped like the key body. The key body is assembled into the key cavity and snapped with it. The rebound filling body is filled between the bottom of the key body and the bottom inner wall of the key cavity and is used to apply elastic force to the key body so that the upper surface of the key body protrudes from the key cavity.

2. The key structure according to claim 1, characterized in that: A top rod for triggering a physical switch inside the electronic device is provided at the bottom of the button body. A first through hole communicating with the interior of the electronic device is formed through the bottom inner wall of the button cavity. The first through hole faces the physical switch. The top rod is inserted into the first through hole, and the triggering end face of the top rod is flush with the bottom outer wall of the button cavity.

3. The key structure according to claim 2, characterized in that: A group of anti-dropout buckles are provided at the bottom of the button body, and the push rod is arranged between the group of anti-dropout buckles; the inner wall of the button cavity is provided with a group of anti-dropout walls that are buckled up and down with the group of anti-dropout buckles.

4. The key structure according to claim 3, characterized in that: A group of guide rods are provided at the bottom of the button body to limit the pressing movement direction of the button body, and the top rod is arranged between the group of guide rods; a group of second through holes connected to the interior of the electronic device are opened through the bottom of the button cavity, and a group of guide rods are inserted into the group of second through holes.

5. The key structure according to claim 4, characterized in that: A group of guide rods are arranged at the bottom of the button body near both ends, and a group of anti-drop buckles are correspondingly arranged on the end sides of a group of guide rods; the anti-drop buckles pass through the second through holes and are buckled with the anti-drop walls up and down.

6. The key structure according to claim 5, characterized in that: Each anti-trip buckle extends toward or away from another anti-trip buckle; and mutually matching chamfers are provided on the anti-trip buckle and the anti-trip wall so that the anti-trip buckle can be smoothly buckled on the anti-trip wall.

7. The key structure according to claim 4, characterized in that: The bottom of the button body is provided with a group of limiting pits located between the two sides of the push rod and a group of guide rods, and a group of rebound filling bodies are bonded in the limiting pits; The unpenetrated area of ​​the bottom inner wall of the key cavity is used to support a group of the rebound filling bodies. The bottom surface of the key cavity is also provided with two groups of vertical step surfaces. A rebound filling body is arranged between each group of step surfaces to prevent the rebound filling body from being stuck in the through hole when the key body is pressed down.

8. The key structure according to claim 4, characterized in that: The cross-sectional dimensions of a group of guide rods are different, and the diameters of a group of second through holes are correspondingly different, so that the direction of the key body when assembled into the key cavity is unique.

9. The key structure according to claim 1, characterized in that: The button body is made of plastic or metal, and the rebound filling body is made of soft silicone material; The key body is a runway-shaped column, and the edges of the upper surface of the runway-shaped column are rounded; the top opening edge of the key cavity is rounded.

10. An electronic device, characterized in that: The invention comprises a housing and a key structure as claimed in any one of claims 1 to 9.

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