Key structure

Abstract

The utility model relates to the field of keys, in particular to a key structure, which is applied to a shell, and is characterized in that a key can penetrate into the shell in a manner of being movably connected with the outside of the shell and triggers the function of a switch, and the key structure also comprises a control system with a light source and a light guide column which are positioned in the shell, the light-emitting surface of the light guide column penetrates through the key through the light guide column and is positioned outside the key; a trigger signal formed by the switch can enable the light source to emit light to the light guide column; the assembling object of the light source is transferred to the inside from the shell, the light source, the key and the shell can be independent from one another through the movable connection mode between the key and the shell and the use of the light guide column, normal use of the light source, the key and the shell cannot be affected during replacement, and the situation that the light source, the key and the shell are forcibly scrapped is avoided. When the button is replaced to solve the failure problem, the shell and the light source do not need to be additionally replaced, and the maintenance cost is remarkably reduced.

Description

Technical Field

[0001] The utility model relates to the field of keys, in particular to a key structure. Background Art

[0002] A button is a physical switch that has been optimized in multiple ways to facilitate the control of the execution object.

[0003] In conventional products, in order to confirm whether the key effect is executed smoothly, an LED light is used to check the use of the key. For example, when the key is pressed, the LED light will light up.

[0004] In these conventional products, the design of buttons and LED lights still remains at the functional level. For example, the LED lights and buttons are separately assembled on the product housing and fixed on the housing through a hot stamping process.

[0005] However, the use of hot stamping will prolong the assembly time, and in terms of efficiency, the low production capacity will increase the cost required for production.

[0006] In addition, the hot-stamping process will fix the buttons and LED lights to the casing. When replacing a button with abnormal function, the LED lights and casing will also need to be replaced. This mandatory scrapping of the LED lights and casing will cause the replacement cost to rise sharply. Utility Model Content

[0007] In order to solve the above problems, the utility model provides a key structure, which is assembled from split components and can replace keys individually to reduce maintenance costs. In addition, the use of hot stamping process is omitted, and the production capacity is significantly improved.

[0008] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a button structure, applied to the shell, characterized in that the button is movably connected to the outside of the shell so that it can penetrate into the interior and trigger the function of the switch, and also includes a control system and a light guide column with a light source located in the shell, the light emitting surface of the light guide column is located outside the button by the light guide column passing through the button, and the trigger signal formed by the switch can cause the light source to emit light to the light guide column.

[0009] Furthermore, positioning ribs are provided on the inner side surface of the shell and on both sides of the opening, and there is a spacing between the positioning ribs, and the spacing is adapted to the size of the key.

[0010] Furthermore, a slot is provided on the positioning rib, and arms are provided on both sides of the button relative to the inner part of the shell, and the arms penetrate into the slot to form a connection relationship with the positioning rib, wherein the arms are made of elastic material.

[0011] Furthermore, the two arms are symmetrical or asymmetrical.

[0012] Furthermore, the two arms are staggered up and down.

[0013] Furthermore, the contact switch and the light source are both mounted on a circuit board of the control system.

[0014] Furthermore, the light source is a light emitting diode.

[0015] Furthermore, the button is provided with a cavity opening to the inside of the shell, the inner side of the cavity is provided with a slot, and the side of the button is provided with a clamping point corresponding to the slot. The button is inserted into the cavity and is fixed by clamping with the slot of the cavity through the clamping point.

[0016] Beneficial effects of the utility model:

[0017] The assembly object of the light source is transferred from the shell to the inside, and the movable connection between the button and the shell and the use of the light guide column make the light source, button and shell independent of each other. When replacing, they will not affect the normal use of each other, nor will they cause forced scrapping of each other. When replacing buttons to solve malfunction problems, there is no need to replace the shell and light source additionally, and the maintenance cost is significantly reduced.

[0018] In addition, the independent assembly results save the use of the hot-scalding process. In short, there is no need to use the hot-scalding process device, and the movable connection method is more efficient than the hot-scalding process assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a stereoscopic diagram of the utility model after being applied to the shell.

[0020] Figure 2 yes Figure 1 An enlarged schematic diagram of point A.

[0021] Figure 3 It is a three-dimensional diagram of the connection between the button and the light guide column in the utility model.

[0022] Figure 4 This is a three-dimensional picture after the button and the light guide column are separated.

[0023] Figure 5 It is a positional relationship diagram between buttons, light guides, circuit boards, and contact switches.

[0024] Figure 6 This is a diagram of the button after it is separated from the shell.

[0025] Figure 7 This is a schematic diagram of the connection between the positioning rib and the arm after the key is assembled to the housing. DETAILED DESCRIPTION

[0026] In the specification, references to "one embodiment", "an embodiment" or "some embodiments" mean that a particular feature, structure or element described with reference to the embodiment is included in at least one embodiment of the subject matter being described. Thus, sentences in the specification saying "in one embodiment" or "in an embodiment" or "in some embodiments" do not necessarily refer to the same embodiment or embodiments. The particular features, structures or elements may be further combined in any embodiment in a suitable manner.

[0027] like Figure 1-7 As shown, a key structure is applied to a housing 1. In this specific embodiment, the housing 1 is a housing 1 of an electronic consumer product. The key structure includes:

[0028] Button 2, light source 3, control system, light guide column 4;

[0029] An opening 100 corresponding to the button 2 is preset on the shell 1. The button 2 is installed in the opening 100 and completely closes the opening 100. The button 2 and the opening 100 are movably connected, and the button 2 can move on the opening 100, such as entering the interior of the shell 1 from the opening 100. The control system is located inside the shell 1. A contact switch is provided on the control system. The contact switch is located on the movable path of the button 2. After being pressed, the button 2 slides in the opening 100 and contacts the contact switch 5. The contact switch 5 turns on the drive circuit in the control system. The drive circuit drives the light source 3 to emit light. The light source 3 and the light guide column 4 are arranged inside the shell 1. The light emitting surface 41 at one end of the light guide column 4 passes through the button 2, and the light incident surface at the other end is always kept in a relative state with the light source 3. The light emitted by the light source 3 is emitted into the light guide column 4, confirming that the use of the function has been successfully executed.

[0030] In order to ensure the stability of the key 2 in the opening 100, the inner side surface of the shell 1 is provided with positioning ribs 6 located on both sides of the opening 100, and there is a spacing between the positioning ribs 6, and the spacing is adapted to the size of the key 2. When the key 2 is moving, the positioning ribs 6 play a guiding role to ensure that the moving path of the key 2 will intersect with the contact switch 5. Secondly, the positioning ribs 6 can pass through the auxiliary key 2 to prevent the key 2 from tilting and prevent jamming.

[0031] A card slot 61 is provided on the positioning rib 6, and arms 21 are provided on both sides of the button 2 relative to the inner part of the shell 1. The arm 21 is inserted into the card slot 61 to establish a connection relationship with the positioning rib 6, wherein the arm 21 is made of a material such as plastic with a certain elasticity and hardness. The position of the positioning rib 6 is fixed. After the button 2 is pressed, the arm 21 will produce a certain plastic deformation. After touching the contact switch 5 and releasing the thrust on the button 2, the arm 21 will reset in the direction of restoring its original state due to its own material properties. The reset of the arm 21 will pull the position of the button 2 to reset together, which significantly improves the experience and facilitates the next use of the button 2.

[0032] In a specific embodiment, the two arms 21 are symmetrical or asymmetrical.

[0033] In a specific embodiment, the two arms 21 are staggered up and down.

[0034] In a specific embodiment, the contact switch 5 and the light source 3 are both mounted on a circuit board 7 .

[0035] In a specific embodiment, the light source 3 is a light emitting diode.

[0036] The modular structure composed of the button 2 and the light guide column 4 can simplify the appearance of the product.

[0037] In a specific embodiment, the button 2 is provided with a cavity 23 having an opening 100 leading to the inside of the housing 1, a positioning groove is provided on the inner side of the cavity 23, and a clamping point 22 corresponding to the positioning groove is provided on the side of the button 2. The button 2 is inserted into the cavity 23 and is fixed by clamping the clamping point 22 with the positioning groove of the cavity 23.

[0038] The above implementation modes are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering and technical personnel in the field shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A key structure, applied to a housing, characterized in that: The button is movably connected to the outside of the shell so that it can penetrate into the interior and trigger the switch function. It also includes a control system with a light source and a light guide column located in the shell. The light emitting surface of the light guide column is located outside the button by the light guide column passing through the button. The trigger signal formed by the switch can cause the light source to emit light to the light guide column.

2. A key structure according to claim 1, characterized in that: Positioning ribs are also arranged on the inner side surface of the shell and on both sides of the opening, and there is a spacing between the positioning ribs, and the spacing is adapted to the size of the key.

3. A key structure according to claim 2, characterized in that: A slot is provided on the positioning rib, and arms are provided on both sides of the button relative to the inner part of the shell. The arms penetrate into the slot and are connected with the positioning rib, wherein the arms are made of elastic material.

4. A key structure according to claim 3, characterized in that: The two arms are symmetrical or asymmetrical.

5. A key structure according to claim 4, characterized in that: The two arms are staggered up and down.

6. A key structure according to claim 1 or 5, characterized in that: The contact switch and the light source are both mounted on the circuit board of the control system.

7. A key structure according to claim 1 or 5, characterized in that: The light source is a light emitting diode.

8. A key structure according to claim 1, characterized in that: The button is provided with a cavity opening to the inside of the shell, the inner side of the cavity is provided with a card slot, and the side of the button is provided with a card point corresponding to the card slot. The button is inserted into the cavity and fixed with the card slot of the cavity through the card point.

Images