Detachable keypad cover bluetooth controller for mobile phone

Abstract

The application discloses a mobile phone detachable key cap Bluetooth controller in the technical field of electronic switch components, which comprises a bottom cover, a lower shell, an upper shell, an internal supporting plate and an upper key cap, the lower shell is connected and installed on the upper end surface of the bottom cover, the upper shell is connected and installed on the upper end surface of the lower shell, the internal supporting plate is internally installed on the lower shell and the upper shell, and the internal supporting plate is located below the upper key cap; the device is a Bluetooth auxiliary key applied to a mobile phone; the device is provided with a PCB board, a conductive glue key, an internal supporting plate and an upper key cap, so that when the device is used, the upper key cap is fixed by magnetic attraction, after the upper key cap is correctly installed, the circuit current in the device normally flows, so that the Bluetooth is in an open state, after the upper key cap is disassembled or reversely installed, the circuit current in the device is disconnected, so that the Bluetooth is in a closed state, the Bluetooth switch of a normal Bluetooth device is omitted by further pressing the upper key cap to rotate and control the Bluetooth switch.

Description

Technical Field

[0001] This invention relates to the field of electronic switch components, specifically a Bluetooth controller with detachable keycaps for mobile phones. Background Technology

[0002] A Bluetooth auxiliary button for mobile phones is a button device that connects to a mobile phone via Bluetooth technology to perform specific functions. With the widespread use and increasing functionality of smartphones, users have higher demands for operating their phones. In some situations, users may need to frequently operate certain functions on their phones, but this can be difficult due to small screen sizes or hand limitations. To solve this problem, Bluetooth auxiliary buttons for mobile phones have emerged. They connect to the phone via Bluetooth and can be held in the hand or placed in an easily accessible location, allowing users to perform operations by pressing the corresponding button. This design not only facilitates quick operation and improves the user experience but also avoids screen damage caused by frequent touching.

[0003] Current Bluetooth controllers typically use tactile button switches, also known as tactile switches. There are currently two types of devices in the industry that involve physical buttons: removable keycaps and non-removable keycaps. Removable keycaps are more commonly used on keyboards and are primarily removed via a plug-and-play mechanism.

[0004] However, the keycaps of the two types of physical buttons mentioned above are inconvenient to remove and difficult to install, and prolonged use can lead to a decrease in button sensitivity. Therefore, we propose a Bluetooth controller with detachable keycaps for mobile phones. Summary of the Invention

[0005] The purpose of this invention is to provide a Bluetooth controller with detachable keycaps for mobile phones to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a Bluetooth controller with detachable keycaps for mobile phones, comprising a bottom cover, a lower outer shell, an upper outer shell, an internal tray, and an upper keycap. The lower outer shell is snapped onto the upper surface of the bottom cover, and the upper outer shell is snapped onto the upper surface of the lower outer shell. An internal tray is installed inside the lower and upper outer shells, located below the upper keycap. One end of the upper keycap extends through the surface of the upper outer shell, and the upper keycap is rotatable within the upper outer shell. A PCB board is fixedly connected to the surface of the bottom cover. Conductive adhesive buttons are mounted on the upper surface of the PCB board. A Bluetooth chip for Bluetooth connection with the mobile phone is provided on the PCB board. Two sets of spring-loaded conductive pins are embedded in the surface of the internal tray. The upper keycap... An LED chip light is fixedly connected to the center of the lower surface of the cap. Two sets of symmetrically distributed conductive copper sheets are connected to the lower surface of the upper keycap outside the LED chip light. The two sets of conductive copper sheets are positive and negative poles, respectively. The PCB board and the conductive adhesive key, the PCB board and one set of spring conductive pins, the conductive adhesive key and the other set of spring conductive pins, and the LED chip light and the two sets of conductive copper sheets are electrically connected by wires. The rotation of the upper keycap is used to control the switching of the contact positions between the positive and negative poles of the two sets of conductive copper sheets and the two sets of spring conductive pins. Horseshoe magnets are embedded on both sides of the inner support plate and on the lower surface of the upper keycap. The inner support plate and the upper keycap are magnetically connected by the horseshoe magnets.

[0007] Preferably, a magnetic ring is embedded in the lower end surface of the lower housing.

[0008] Preferably, a lithium battery and a Type-C interface are installed inside the lower and upper outer shells, and the lithium battery and the Type-C interface are electrically connected by wires, and the lithium battery and the PCB board are electrically connected by wires.

[0009] Preferably, the upper surface of the bottom cover is provided with a plurality of sets of return springs distributed circumferentially at equal intervals, the return springs abut against the surface of the inner support plate, and the inner wall of the upper outer shell is provided with a limiting slot.

[0010] Preferably, the horseshoe magnet includes two sets of N poles and S poles connected to the surface of the inner tray, the two sets of S poles and N poles being staggered. On the lower surface of the inner tray, the two sets of S poles are respectively located on one side of the two sets of positioning grooves, and the two sets of N poles are staggered between the two sets of S poles. On the upper surface of the inner tray, the two sets of N poles are respectively located on one side of the two sets of positioning grooves, and the two sets of S poles are staggered between the two sets of N poles. The horseshoe magnet also includes two sets of S poles connected to the lower surface of the upper keycap, the two sets of S poles being symmetrically distributed.

[0011] Preferably, there is a gap between the S pole and the N pole of the magnet, and the length of the N pole is greater than the length of the S pole.

[0012] Preferably, the attractive force between the S pole and the N pole of the magnet is less than 50N.

[0013] Preferably, the conductive copper sheet is arc-shaped and distributed concentrically with the LED patch light, and the spring conductive pin is positioned above the rotation path of the conductive copper sheet.

[0014] Preferably, the upper surface of the lower outer shell is provided with two sets of symmetrically distributed positioning pins, and the surface of the inner tray is provided with two sets of symmetrically distributed positioning grooves, wherein the positioning pins and positioning grooves are adapted to each other.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This device is a Bluetooth auxiliary button used on mobile phones. Through the structural design of PCB board, conductive rubber button, internal tray and upper keycap, the device is fixed in use by magnetic attraction through the upper keycap. After the upper keycap is correctly installed, the circuit current in the device is normal and the Bluetooth is in the turned-on state. When the upper keycap is removed or installed in reverse, the circuit current in the device is disconnected and the Bluetooth is in the turned-off state. The Bluetooth switch is further controlled by pressing and rotating the upper keycap, which eliminates the need for the Bluetooth switch of normal Bluetooth devices.

[0017] 2. In this device, the upper keycap is fixed by magnetic attraction. By rotating the upper keycap, the magnetic force causes them to repel each other, allowing the upper keycap to pop out and be removed, which improves the convenience of use. In addition, the upper keycap has added lighting effects and can be matched with different patterns, making the upper keycap more beautiful and increasing its playability. Attached Figure Description

[0018] Figure 1 This is a schematic cross-sectional view of the structure of the present invention;

[0019] Figure 2 This is a top view of the structure of the present invention;

[0020] Figure 3 This is a side view of the structure of the present invention;

[0021] Figure 4 This is an exploded view of the structure of the present invention;

[0022] Figure 5 This is a side view of the bottom cover structure of the present invention;

[0023] Figure 6 This is a top view of the bottom cover structure of the present invention;

[0024] Figure 7 This is a side view of the lower outer shell structure of the present invention;

[0025] Figure 8 This is a bottom view of the lower outer shell structure of the present invention;

[0026] Figure 9 This is a side view of the outer shell structure of the present invention;

[0027] Figure 10 This is a bottom view of the outer shell structure of the present invention;

[0028] Figure 11 This is a side view of the internal tray structure of the present invention;

[0029] Figure 12 This is a schematic diagram of the lower surface of the internal support plate structure of the present invention;

[0030] Figure 13 This is a schematic diagram of the upper surface of the internal tray structure of the present invention;

[0031] Figure 14 This is a side view of the keycap structure of the present invention;

[0032] Figure 15 This is a bottom view of the keycap structure of the present invention;

[0033] Figure 16 This is a schematic diagram showing the connection between the lower surface of the upper keycap and the upper surface of the internal support plate of the present invention;

[0034] Figure 17 This is a schematic diagram of the keycap structure adjustment in this invention.

[0035] In the diagram: 1. Bottom cover; 101. Reset spring; 2. Lower outer shell; 201. Positioning pin; 202. Magnetic ring; 3. Upper outer shell; 301. Restriction slot; 4. Internal tray; 401. Positioning groove; 402. Spring conductive pin; 5. Upper keycap; 501. LED chip light; 502. Conductive copper sheet; 6. Magnet S pole; 7. Magnet N pole; 8. Wire; 9. PCB board; 10. Conductive adhesive button; 11. Lithium battery; 12. Type-C interface; 13. Horseshoe magnet. Detailed Implementation

[0036] Example

[0037] Please see Figure 1-17 The present invention provides a technical solution:

[0038] This is a Bluetooth controller with detachable keycaps for mobile phones. A lower outer shell 2 is mounted on the upper outer surface of a bottom cover 1. An upper outer shell 3 is connected to the upper surface of the lower outer shell 2. An internal tray 4 is installed inside the lower outer shell 2 and the upper outer shell 3. An upper keycap 5 is inserted and installed inside the lower outer shell 2 and the upper outer shell 3, positioned above the internal tray 4. A PCB board 9 is fixedly connected to the surface of the bottom cover 1. A conductive rubber button 10 is mounted on the upper surface of the PCB board 9, and the upper surface of the conductive rubber button 10 abuts against the lower surface of the internal tray 4. The PCB board 9 has a Bluetooth chip for Bluetooth connection with the mobile phone. The conductive rubber button 10 simulates Bluetooth touch points on the mobile phone. Furthermore, when the upper keycap 5 is pressed and rotated by the user, the conductive rubber button 10 controls the circuit connection, thus enabling Bluetooth touch control.

[0039] A magnetic ring 202 is embedded in the lower surface of the lower outer shell 2. The magnetic ring 202 allows the device to be magnetically attached to the metal casing of the mobile phone, thus securing the device during use. After the magnetic ring 202 is installed below the lower outer shell 2, the bottom cover 1 is pressed against and engaged with the lower surface of the lower outer shell 2, achieving a seal between the bottom cover 1 and the lower outer shell 2. Then, the inner tray 4 is embedded in the upper surface of the lower outer shell 2, and the upper outer shell 3 is engaged with the upper surface of the lower outer shell 2, thus sealing and enclosing the inner tray 4 within both the lower and upper outer shells.

[0040] The upper surface of the bottom cover 1 is provided with several sets of return springs 101 distributed in a circular pattern at equal intervals. The return springs 101 abut against the surface of the inner support plate 4. This further enables the inner support plate 4 to slide downward inside the lower outer shell 2 and the upper outer shell 3 and squeeze the return springs 101 when the upper keycap 5 is rotated and the press is released. When the upper keycap 5 is rotated and the press is released, the inner support plate 4 and the upper keycap 5 will be reset under the elastic force of the return springs 101.

[0041] A limiting slot 301 is provided on the inner wall of the upper outer shell 3. The limiting slot 301 is used to limit and block the internal tray 4, so that the sliding stroke of the internal tray 4 inside the lower outer shell 2 and the upper outer shell 3 is limited, and the internal tray 4 is prevented from sliding out and falling off from the lower outer shell 2 and the upper outer shell 3.

[0042] After the lower outer shell 2 and the upper outer shell 3 are snapped together, a lithium battery 11 is installed between the lower outer shell 2 and the upper outer shell 3. The lithium battery 11 is used to power the device. At the same time, a type-C interface 12 is provided between the lower outer shell 2 and the upper outer shell 3. The type-C interface 12 is used to connect a charger, which further facilitates the internal charging of the lithium battery 11 by the device, enabling the wireless use of the device.

[0043] Two sets of spring-loaded conductive pins 402 are embedded in the surface of the internal tray 4. An LED chip light 501 is fixedly connected to the center of the lower surface of the upper keycap 5. Two sets of symmetrically distributed conductive copper sheets 502 are connected to the lower surface of the upper keycap 5 outside the LED chip light 501. The two sets of conductive copper sheets 502 are the positive and negative terminals, respectively. When the upper keycap 5 covers the internal tray 4, the spring-loaded conductive pins 402 and the conductive copper sheets 502 are aligned, realizing the circuit connection. The lithium battery 11, the type-c interface 12, the lithium battery 11 and the PCB board 9, the PCB board 9 and a set of spring conductive pins 402, the conductive rubber button 10 and another set of spring conductive pins 402, and the LED chip light 501 and the two sets of conductive copper sheets 502 are all electrically connected by wires 8. After the internal tray 4 and the upper keycap 5 are installed, the lithium battery 11 can power the spring conductive pins 402. Furthermore, the spring conductive pins 402 and the conductive copper sheets 502 make contact to power the LED chip light 501 and control the LED chip light 501 to emit light. This makes the device more beautiful and adds a playful touch to the keycaps when combined with different patterns. The conductive copper sheet 502 is designed in an arc shape and is distributed concentrically with the LED chip light 501. The spring conductive pin 402 is positioned above the rotation path of the conductive copper sheet 502, so that when the upper keycap 5 rotates, it can switch the positive and negative poles of the two sets of conductive copper sheets 502 and the two sets of spring conductive pins 402 to make contact.

[0044] Horseshoe-shaped magnets 13 are embedded in both sides of the inner tray 4. Each horseshoe-shaped magnet 13 includes an N-pole 7 and an S-pole 6. The S-pole 6 and N-pole 7 are arranged in two sets, staggered. On the lower surface of the inner tray 4, the two sets of S-pole 6 are located on one side of the two sets of positioning grooves 401, and the two sets of N-pole 7 are staggered between the two sets of S-pole 6, with a gap between them. The length of the N-pole 7 is greater than the length of the S-pole 6. On the upper surface of the inner tray 4, the two sets of N-pole 7 are located on one side of the two sets of positioning grooves 401, and the two sets of S-pole 6 are staggered between them, with a gap between them as well.

[0045] Horseshoe magnets 13 are also embedded in the lower surface of the upper keycap 5. The horseshoe magnets 13 include two sets of magnet S poles 6 connected to the lower surface of the upper keycap 5. The two sets of magnet S poles 6 are symmetrically distributed.

[0046] like Figure 16-17As shown, after the internal tray 4 and the upper keycap 5 are aligned and installed inside the lower outer shell 2, the S pole 6 of the magnet on the lower surface of the upper keycap 5 and the N pole 7 of the magnet on the upper surface of the internal tray 4 are aligned and in contact, further causing the S pole 6 and the N pole 7 of the magnet to attract each other under the action of magnetic force, thus realizing the connection and fixation between the internal tray 4 and the upper keycap 5. At this time, the conductive copper sheet 502 and the spring conductive pin 402 are in contact, realizing the circuit is energized and controlling the LED chip light 501 to turn on and emit light, and Bluetooth is turned on at the same time.

[0047] The upper surface of the upper keycap 5 protrudes from the upper outer shell 3, making it easy to press and control. The upper keycap 5 is also rotatable inside the upper outer shell 3. During use, when the upper keycap 5 needs to be removed, it can be manually rotated from 22.5° to 45°. This causes the S-pole 6 of the magnet on the upper keycap 5 to rotate above the S-pole 6 of the magnet on the upper surface of the inner tray 4. The two sets of magnet S-pole 6 repel each other under magnetic force, further pushing the upper keycap 5 outwards. This further opens the contact between the conductive copper sheet 502 and the spring conductive pin 402, disconnecting the circuit of the upper keycap 5 and causing it to automatically pop out.

[0048] When the upper keycap 5 is manually rotated 180°, the S pole 6 of the magnet on the surface of the upper keycap 5 and the N pole 7 of the magnet on the surface of the internal tray 4 are aligned and in contact. The S pole 6 and the N pole 7 of the magnet attract each other under the action of magnetic force, thus fixing the connection between the internal tray 4 and the upper keycap 5. However, the two sets of spring conductive pins 402 on the surface of the internal tray 4 are connected to the conductive copper sheet 502 on the upper keycap 5 with opposite polarities, so that the circuit is not connected, thus achieving power off and preventing the upper keycap 5 from popping out.

[0049] The upper surface of the lower outer shell 2 is provided with two sets of symmetrically distributed positioning pins 201, and the surface of the inner support plate 4 is provided with two sets of symmetrically distributed positioning grooves 401. The positioning pins 201 and the positioning grooves 401 are matched. When the inner support plate 4 is embedded in the lower outer shell 2, the positioning pins 201 are just inserted into the positioning grooves 401. Through the limiting effect of the positioning pins 201 on the positioning grooves 401, the inner support plate 4 slides linearly during the reset process and does not deviate during rotation, thereby improving the structural robustness and stability of the device.

[0050] The bottom cover 1 is used to seal the lower openings of the lower outer shell 2 and the upper outer shell 3, and the upper keycap 5 is used to seal the upper openings of the lower outer shell 2 and the upper outer shell 3, further realizing the dustproof and waterproof protection of this device.

[0051] The surfaces of the lower outer shell 2 and the upper outer shell 3 are designed in an arc shape. Based on the golden ratio principle of the Fibonacci sequence spiral, the arc surfaces of the lower outer shell 2 and the upper outer shell 3 fit the user's fingers better during use, improving the comfort of using the device.

[0052] The attractive force between the S pole 6 and the N pole 7 of the magnet is less than 50N.

[0053] In summary, this device has the following advantages when in use:

[0054] 3. This device is a Bluetooth auxiliary button used on mobile phones. Through the structural arrangement of PCB board 9, conductive glue button 10, internal support plate 4, and upper keycap 5, the device is fixed in use by magnetic attraction through upper keycap 5. After upper keycap 5 is correctly installed, the circuit current in the device flows normally, so that Bluetooth is in the turned-on state. When upper keycap 5 is removed or installed in reverse, the circuit current in the device is disconnected, so that Bluetooth is in the turned-off state. Furthermore, pressing and rotating upper keycap 5 controls the Bluetooth switch, eliminating the need for a normal Bluetooth switch on a Bluetooth device.

[0055] 4. In this device, the upper keycap 5 is fixed by magnetic attraction. By rotating the upper keycap 5, the magnetic force causes the upper keycap 5 to repel each other, allowing it to pop out and be removed, which improves the convenience of use. In addition, the upper keycap 5 has added lighting effects and can be matched with different patterns, making the upper keycap 5 more beautiful and increasing its playability.

Claims

1. A Bluetooth controller with detachable keycaps for mobile phones, comprising a bottom cover (1), a lower outer shell (2), an upper outer shell (3), an internal tray (4), and an upper keycap (5), characterized in that: The bottom cover (1) is fitted with a lower outer shell (2) on its upper surface. The lower outer shell (2) is fitted with an upper outer shell (3) on its upper surface. An internal tray (4) is installed inside the lower outer shell (2) and the upper outer shell (3). The internal tray (4) is located below the upper keycap (5). One end of the upper keycap (5) extends through the surface of the upper outer shell (3). The upper keycap (5) is inserted into the upper outer shell (3) and can rotate. A PCB board (9) is fixedly connected to the surface of the bottom cover (1). A conductive rubber button (10) is installed on the upper surface of the PCB board (9). A Bluetooth chip for Bluetooth connection with a mobile phone is provided on the PCB board (9). Two sets of spring conductive pins (402) are embedded in the surface of the internal tray (4). An LED chip (501) is fixedly connected to the center of the lower surface of the upper keycap (5). The lower surface of the upper keycap (5) is located at the center of the LED chip. Two sets of symmetrically distributed conductive copper sheets (502) are connected to the outside of the LED chip lamp (501). The two sets of conductive copper sheets (502) are positive and negative poles respectively. The PCB board (9) and the conductive glue button (10), the PCB board (9) and a set of spring conductive pins (402), the conductive glue button (10) and another set of spring conductive pins (402), and the LED chip lamp (501) and the two sets of conductive copper sheets (502) are electrically connected by wires (8). The upper keycap (5) is rotated to control the switching of the contact position between the positive and negative poles of the two sets of conductive copper sheets (502) and the two sets of spring conductive pins (402). Horseshoe magnets (13) are embedded on both sides of the inner tray (4). Horseshoe magnets (13) are embedded on the lower surface of the upper keycap (5). The inner tray (4) and the upper keycap (5) are magnetically connected by the horseshoe magnets (13).

2. The Bluetooth controller with detachable keycaps for mobile phones according to claim 1, characterized in that: A magnetic ring (202) is embedded in the lower end surface of the lower outer shell (2).

3. The Bluetooth controller with detachable keycaps for mobile phones according to claim 1, characterized in that: The lower outer shell (2) and the upper outer shell (3) are equipped with a lithium battery (11) and a type-c interface (12). The lithium battery (11) and the type-c interface (12) are electrically connected by a wire (8). The lithium battery (11) and the PCB board (9) are electrically connected by a wire (8).

4. The Bluetooth controller with detachable keycaps for mobile phones according to claim 1, characterized in that: The upper surface of the bottom cover (1) is provided with several sets of return springs (101) that are equidistantly distributed in a circular pattern. The return springs (101) abut against the surface of the inner support plate (4). The inner wall of the upper outer shell (3) is provided with a limiting slot (301).

5. The Bluetooth controller with detachable keycaps for mobile phones according to claim 1, characterized in that: The horseshoe magnet (13) includes two sets of magnet N poles (7) and magnet S poles (6) connected to the surface of the inner tray (4). The two sets of magnet S poles (6) and magnet N poles (7) are staggered. On the lower surface of the inner tray (4), the two sets of magnet S poles (6) are located on one side of the two sets of positioning grooves (401). The two sets of magnet N poles (7) are staggered between the two sets of magnet S poles (6). On the upper surface of the inner tray (4), the two sets of magnet N poles (7) are located on one side of the two sets of positioning grooves (401). The two sets of magnet S poles (6) are staggered between the two sets of magnet N poles (7). The horseshoe magnet (13) includes two sets of magnet S poles (6) connected to the lower surface of the upper keycap (5). The two sets of magnet S poles (6) are symmetrically distributed.

6. The Bluetooth controller with detachable keycaps for mobile phones according to claim 5, characterized in that: There is a gap between the S pole (6) and the N pole (7) of the magnet, and the length of the N pole (7) is greater than the length of the S pole (6).

7. The Bluetooth controller with detachable keycaps for mobile phones according to claim 5, characterized in that: The attraction force between the S pole (6) and N pole (7) of the magnet is less than 50N.

8. The Bluetooth controller with detachable keycaps for mobile phones according to claim 1, characterized in that: The conductive copper sheet (502) is configured in an arc shape and is distributed concentrically with the LED chip lamp (501). The spring conductive pin (402) is positioned above the rotation path of the conductive copper sheet (502).

9. The Bluetooth controller with detachable keycaps for mobile phones according to claim 1, characterized in that: The upper surface of the lower outer shell (2) is provided with two sets of symmetrically distributed positioning pins (201), and the surface of the inner tray (4) is provided with two sets of symmetrically distributed positioning grooves (401). The positioning pins (201) and the positioning grooves (401) are compatible.

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