Multi-pin trigger mute key structure

Abstract

The utility model discloses a multi-pin trigger mute button structure, comprising a pedestal and an upper cover installed on the pedestal, the pedestal is provided with an installation part and a guide hole arranged on the installation part; a guide core is installed on the upper cover in a sliding mode, a positioning part sliding relative to the guide hole is arranged on the guide core, and an elastic element abutting against the base is arranged on the positioning part in a sleeving mode. A silica gel pad is embedded in the guide core and sleeves the bottom of the positioning part, and one end of the silica gel pad extends out of the guide core; when the guide core slides towards the base, the silica gel pad abuts against the positioning part, and when the guide core slides towards the upper cover, the silica gel pad abuts against the upper cover. A silica gel pad is arranged on the guide core, one end of the silica gel pad extends out of the guide core, collision sound is buffered and eliminated through the silica gel pad when the guide core slides downwards and touches the positioning part, and the collision sound is buffered and eliminated through the silica gel pad when the guide core is pushed by the elastic element to reset and touches the upper cover; in this way, no collision sound is generated in the pressing operation process, and silence is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of keyboard keys, in particular to a multi-pin triggered silent key structure. Background Art

[0002] The key structure is the main part of the keyboard that realizes input. The key structure is used to install the keycaps and is connected to the internal circuit board of the keyboard. The input operation is realized by pressing the guide core in the key structure to trigger different signals. Generally speaking, the guide core in the key structure can slide relatively, and a signal is generated when sliding downward. After reset, it is limited to prevent it from falling out. Therefore, when the guide core slides up and down to the limit position, it will touch and make a sound. For the method of requiring a silent keyboard, the sound generated during the sliding process of the guide core needs to be eliminated. Utility Model Content

[0003] 1. Technical issues

[0004] The utility model aims to provide a multi-pin triggered silent key structure to solve the problem of eliminating sound during the sliding process of the guide core in the key structure.

[0005] (II) Technical solution

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A multi-pin triggered mute button structure comprises a base and an upper cover mounted on the base, the base being provided with a mounting portion and a guide hole provided on the mounting portion; a guide core being slidably mounted on the upper cover, the guide core being provided with a positioning portion which slides with the guide hole, the positioning portion being sleeved with an elastic element which abuts against the base; a silicone pad being embedded in the guide core, the silicone pad being sleeved on the bottom of the positioning portion and one end of which protrudes out of the guide core; when the guide core slides toward the base, the silicone pad abuts against the positioning portion, and when the guide core slides toward the upper cover, the silicone pad abuts against the upper cover.

[0008] Preferably, a moving contact piece and a first stationary contact piece and a second stationary contact piece arranged at intervals between the moving contact piece are installed on the base, and a first contact portion and a second contact portion are provided on the moving contact piece; when the guide core slides relative to the upper cover, the first contact portion is connected or disconnected with the first stationary contact piece, and the second contact portion is connected or disconnected with the second stationary contact piece.

[0009] Preferably, the moving contact piece is provided with two first bulges located on both sides of the first contact portion, and two second bulges located on both sides of the second contact portion; the guide core is provided with a first guide portion that slides with the first bulge, and a second guide portion that slides with the second bulge, and the first guide portion and the second guide portion both extend obliquely from the guide core toward the base.

[0010] Preferably, the protrusion height of the first convex hull is the same as or different from the protrusion height of the second convex hull.

[0011] Preferably, the inclination angle of the first guide portion is the same as or different from the inclination angle of the second guide portion.

[0012] Preferably, the guide core has a first sliding stroke and a second sliding stroke when sliding relative to the upper cover.

[0013] Preferably, the first stationary contact piece has a first pin, the second stationary contact piece has a second pin, the movable contact piece has a third pin, and the first pin, the second pin and the third pin all extend out of the base.

[0014] Preferably, the first stationary contact piece is provided with a first conductive contact point cooperating with the first contact portion, and the second stationary contact piece is provided with a second conductive contact point cooperating with the second contact portion.

[0015] Preferably, a first elastic bending portion and a second elastic bending portion are provided on the moving contact piece, the first contact portion and the two first convex bumps are provided on the first elastic bending portion, and the second contact portion and the two second convex bumps are provided on the second elastic bending portion.

[0016] Preferably, the first stationary contact piece is provided with a third elastic bending portion, and the first conductive contact is provided on the third elastic bending portion; the second stationary contact piece is provided with a fourth elastic bending portion, and the second conductive contact is provided on the fourth elastic bending portion.

[0017] (III) Beneficial effects

[0018] The guide hole is provided on the mounting part of the base to guide the positioning part on the guide core, and the upper cover limits the guide core to be pushed back by the elastic element. Therefore, when the key is operated, the guide core is mainly moved downward by pressing, and is pushed back by the elastic element after being released.

[0019] A silicone pad is arranged on the guide core, wherein one end of the silicone pad extends out of the guide core, and when the guide core slides downward and hits the positioning part, the silicone pad is used to buffer and eliminate the collision sound, and when the guide core is pushed back by the elastic element and hits the upper cover, the silicone pad is used to buffer and eliminate the collision sound;

[0020] As a result, no collision sound is generated during the pressing operation, achieving silence. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0022] Figure 2 It is a cross-sectional structural schematic diagram of an embodiment of the utility model;

[0023] Figure 3 It is a three-dimensional structural schematic diagram of an embodiment of the utility model;

[0024] Figure 4 It is a schematic diagram of the structure of the moving contact piece in the embodiment of the utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the first static contact piece in the embodiment of the utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the second static contact piece in the embodiment of the utility model;

[0027] Figure 7 This is a schematic diagram of the structure of the guide core in the embodiment of the utility model;

[0028] Figure 8 This is a schematic diagram of the structure of the key structure and the connector in the embodiment of the utility model;

[0029] Fig. 9 A schematic diagram of the structure of a connector adapted to the key structure of an embodiment of the utility model;

[0030] exist Figures 1 to 9 In the figure, the corresponding relationship between the component names or lines and the figure numbers is as follows:

[0031] Base 1, upper cover 2, mounting portion 3, guide hole 4, guide core 5, first guide portion 51, second guide portion 52, positioning portion 6, elastic element 7, silicone pad 8, moving contact piece 9, first contact portion 91, second contact portion 92, first convex bump 93, second convex bump 94, third pin 95, first elastic bending portion 96, second elastic bending portion 97, first static contact piece 10, first pin 101, first conductive contact 102, third elastic bending portion 103, second static contact piece 11, second pin 111, second conductive contact 112, fourth elastic bending portion 113, connector 12, plug housing 121, electrical plug connector 122, plug interface 123. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0033] See also Figure 1 one Fig. 9 As shown, in the embodiment of the utility model, a multi-pin trigger silent key structure is proposed, which is applied to the keyboard, the key cap is installed, and connected to the control circuit board in the keyboard, and the whole multi-pin trigger silent key structure mainly realizes the pressing operation. Specifically, it includes a base 1 and an upper cover 2 installed on the base 1. The upper cover 2 and the base 1 are connected by a snap-on connection method, which is convenient for rapid assembly or maintenance. The upper cover 2 and the base 1 form the basic structure of the whole key structure, and the installation of the whole key structure is realized through this basic structure. Among them, a mounting portion 3 and a guide hole 4 provided on the mounting portion 3 are provided on the base 1; a guide core 5 is slidably installed on the upper cover 2, and a positioning portion 6 that slides with the guide hole 4 is provided on the guide core 5, and an elastic element 7 that abuts on the base 1 is sleeved on the positioning portion 6. The guide core 5 can slide relative to the upper cover 2, and the positioning portion 6 is slidably guided by the guide hole 4, and the elastic element 7 can be specifically a spring, which is used to reset and push the guide core 5.

[0034] Specifically, when the guide core 5 slides downward, it will collide with the positioning part 6, and when it is reset, it will collide with the upper cover 2. The collision will produce sound. In order to eliminate the collision sound formed at the two positions and realize the multi-pin triggered silent button structure, a silicone pad 8 is embedded in the guide core 5. The silicone pad 8 is sleeved on the bottom of the positioning part 6 and one end extends out of the guide core 5. The part of the silicone pad 8 located inside the guide core 5 is used to form a buffer to eliminate the collision sound when touching the positioning part 6, and the part of the silicone pad 8 located outside the guide core 5 is used to form a buffer to eliminate the collision sound when touching the internal limit part of the upper cover 2. Therefore, when the guide core 5 slides toward the base 1, the silicone pad 8 abuts against the positioning part 6, and when the guide core 5 slides toward the upper cover 2, the silicone pad 8 abuts against the upper cover 2.

[0035] After the two limit positions of the reciprocating sliding of the guide core 5 are buffered by the silicone pad 8, the collision sound is eliminated and a silent key is achieved.

[0036] Specifically, when using the key, the corresponding signal trigger is realized by pressing the guide core 5, and different key operations are realized in combination with the preset control logic. Specifically, a moving contact piece 9 and a first static contact piece 10 and a second static contact piece 11 arranged at intervals between the moving contact piece 9 are installed on the base 1. The moving contact piece 9 is provided with a first contact portion 91 and a second contact portion 92. When the guide core 5 slides relative to the upper cover 2, the first contact portion 91 is connected or disconnected with the first static contact piece 10, and the second contact portion 92 is connected or disconnected with the second static contact piece 11. The sliding of the guide core 5 is to adjust the moving contact piece 9, so that the first contact portion 91 is connected or disconnected with the first static contact piece 10, and the second contact portion 92 is connected or disconnected with the second static contact piece 11, and multi-stage triggering or disconnection is realized through multiple pins.

[0037] In a key-pressing process, different combinations of the above conduction logic can be formed to realize different key signal control and form multi-stage triggering. For example, the first contact part 91 is defined as A, the second contact part 92 is defined as B, the conduction part between the first static contact piece 10 and the first contact part 91 is defined as C, and the conduction part between the second static contact piece 11 and the second contact part 92 is positioned as D. Then, when the guide core 5 drives the moving contact piece 9 to move, the following conduction possibilities can be formed: AC conduction, BD disconnection; AC conduction, BD conduction; AC disconnection, BD conduction; thereby realizing multiple trigger signals according to different conduction signals, and specifically, the conduction control can be realized by the relative movement between the guide core 5 and the moving contact piece 9, such as half-press, full-press, and other stroke adjustments of the guide core 5.

[0038] Of course, in order to push the movable contact piece 9, it is necessary to form a push between the guide core 5 and the movable contact piece 9 based on the different sliding positions of the guide core 5 to achieve the change of the conduction mode.

[0039] Specifically, the movable contact piece 9 is provided with two first convex bumps 93 located on both sides of the first contact portion 91, and two second convex bumps 94 located on both sides of the second contact portion 92. At the same time, the guide core 5 is provided with a first guide portion 51 that is slidably matched with the first convex bump 93, and a second guide portion 52 that is slidably matched with the second convex bump 94. Both the first guide portion 51 and the second guide portion 52 extend obliquely from the guide core 5 toward the base 1. Due to the inclined setting, when the guide core 5 slides downward with the first guide portion 51 and the second guide portion 52, the first guide portion 51 is used to push the two first convex bumps 93 to control the disconnection and conduction between the first contact portion 91 and the first static contact piece 10, and the second guide portion 52 is used to push the two second coatings to control the disconnection and conduction between the second base portion and the second static contact piece 11. Due to the inclined surface structure, the interval distances of pushing the first convex bump 93 and the second convex bump 94 when the guide core 5 is half pressed or fully pressed can be different.

[0040] In order to realize multi-stage trigger control, the conduction state between the first contact part 91 and the first static contact piece 10, and the conduction state between the second contact part 92 and the second static contact piece 11 are realized simultaneously or not, and at least 3 conduction states are realized, so as to realize different operation controls. Specifically, the protrusion height of the first convex bump 93 is made the same or different from the protrusion height of the second convex bump 94. At the same time, the inclination angle of the first guide part 51 can also be made the same or different from the inclination angle of the second guide part 52. Therefore, when the guide core 5 slides to push the moving contact piece 9, different conduction or disconnection states can be formed at the first contact part 91 and the second contact part 92, so as to at least satisfy three conduction modes: AC conduction, BD disconnection; AC conduction, BD conduction; AC disconnection, BD conduction.

[0041] To adapt to the above-mentioned different protrusion heights and different inclination angles, the corresponding conduction state control can be realized in conjunction with the segmented sliding position of the guide core 5, thereby allowing the guide core 5 to have a first sliding stroke and a second sliding stroke when sliding relative to the upper cover 2, wherein the first sliding stroke can be the half-pressed state of the guide core 5, and the second sliding stroke can be the fully pressed state of the guide core 5.

[0042] Specifically, in order to connect the moving contact piece 9 and the static contact piece to the control board in the keyboard, a pair of connectors 12 are used to achieve plug-in conduction, wherein the connector 12 includes a plug-in shell 121 and an electrical connector 122 installed on the shell. In this embodiment, the number of the electrical connectors 122 is 3, and the shell is provided with three plug interfaces 123 corresponding to the electrical connectors 122.

[0043] Specifically, the first static contact piece 10 has a first pin 101, the second static contact piece 11 has a second pin 111, and the moving contact piece 9 has a third pin 95. The first pin 101, the second pin 111 and the third pin 95 all extend out of the base 1. When installing the key structure, the first pin 101, the second pin 111 and the third pin 95 are inserted into the plug interface 123 and are conductively connected to the electrical connector 122, and the electrical connector 122 is connected to the circuit board; and after setting the first pin 101, the second pin 111 and the third pin 95, the hole arrangement of the plug interface 123 is compatible with the 3P shaft, and has a compatible function.

[0044] Specifically, in order to allow the contacting parts on the first static contact piece 10 and the second static contact piece 11 to be able to be turned on and off more sensitively, a first conductive contact 102 cooperating with the first contact portion 91 is provided on the first static contact piece 10, and a second conductive contact 112 cooperating with the second contact portion 92 is provided on the second static contact piece 11. The first conductive contact 102 and the second conductive contact 112 are both relatively protruding. Therefore, when making contact, the first contact portion 91 contacts the first conductive contact 102, and the second contact portion 92 contacts the second conductive contact 112, thereby forming a point contact cooperation mode, which is relatively fast when turned on or off.

[0045] Specifically, in order to allow the moving contact piece 9, the first stationary contact piece 10, and the second stationary contact piece 11 to have better elastic deformation effect, so as to further enable the contact parts to achieve good contact and disconnection states, a first elastic bending portion 96 and a second elastic bending portion 97 are provided on the moving contact piece 9, the first contact portion 91 and the two first convex bumps 93 are provided on the first elastic bending portion 96, and the second contact portion 92 and the two second convex bumps 94 are provided on the second elastic bending portion 97. The first elastic bending portion 96 and the second elastic bending portion 97 can be quickly deformed when touched to facilitate switching between the on and off states, and can ensure stable and reliable connection in the on state.

[0046] Furthermore, a third elastic bending portion 103 is provided on the first static contact piece 10, the first conductive contact 102 is provided on the third elastic bending portion 103, a fourth elastic bending portion 113 is provided on the second static contact piece 11, and the second conductive contact 112 is provided on the fourth elastic bending portion 113; the elastic deformation of the third elastic bending portion 103 and the fourth elastic bending portion 113 makes the contact state of the first conductive contact 102 and the second conductive contact 112 more stable in the conductive state.

[0047] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0049] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A multi-pin triggered mute button structure, characterized in that: It comprises a base and an upper cover mounted on the base, wherein the base is provided with a mounting portion and a guide hole provided on the mounting portion; A guide core is slidably mounted on the upper cover, a positioning portion sliding with the guide hole is provided on the guide core, and an elastic element abutting against the base is sleeved on the positioning portion; A silicone pad is embedded on the guide core, and the silicone pad is sleeved on the bottom of the positioning part and one end of the silicone pad extends out of the guide core; When the guide core slides toward the base, the silicone pad abuts against the positioning portion; when the guide core slides toward the upper cover, the silicone pad abuts against the upper cover.

2. A multi-pin triggered mute button structure according to claim 1, characterized in that: The base is provided with a moving contact piece and a first stationary contact piece and a second stationary contact piece spaced apart from the moving contact piece, and the moving contact piece is provided with a first contact portion and a second contact portion; When the guide core slides relative to the upper cover, the first contact portion is connected to or disconnected from the first stationary contact piece, and the second contact portion is connected to or disconnected from the second stationary contact piece.

3. A multi-pin triggered mute button structure according to claim 2, characterized in that: The movable contact piece is provided with two first convex bumps located on both sides of the first contact portion, and two second convex bumps located on both sides of the second contact portion; The guide core is provided with a first guide portion that is slidably matched with the first convex bump, and a second guide portion that is slidably matched with the second convex bump. Both the first guide portion and the second guide portion extend obliquely from the guide core toward the base.

4. A multi-pin triggered mute button structure according to claim 3, characterized in that: The convex height of the first convex hull is the same as or different from the convex height of the second convex hull.

5. A multi-pin triggered mute button structure according to claim 4, characterized in that: The inclination angle of the first guide portion is the same as or different from the inclination angle of the second guide portion.

6. A multi-pin triggered mute button structure according to claim 5, characterized in that: The guide core has a first sliding stroke and a second sliding stroke when sliding relative to the upper cover.

7. A multi-pin triggered mute button structure according to any one of claims 3 to 6, characterized in that: The first stationary contact piece has a first pin, the second stationary contact piece has a second pin, the moving contact piece has a third pin, and the first pin, the second pin and the third pin all extend out of the base.

8. A multi-pin triggered mute button structure according to claim 7, characterized in that: The first stationary contact piece is provided with a first conductive contact point matched with the first contact portion, and the second stationary contact piece is provided with a second conductive contact point matched with the second contact portion.

9. A multi-pin triggered mute button structure according to claim 8, characterized in that: The movable contact piece is provided with a first elastic bending portion and a second elastic bending portion, the first contact portion and the two first convex hulls are provided on the first elastic bending portion, and the second contact portion and the two second convex hulls are provided on the second elastic bending portion.

10. A multi-pin triggered mute button structure according to claim 9, characterized in that: The first stationary contact piece is provided with a third elastic bending portion, and the first conductive contact point is provided on the third elastic bending portion; The second stationary contact piece is provided with a fourth elastic bending portion, and the second conductive contact point is provided on the fourth elastic bending portion.

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