TWI824363B - Keyboard module and electronic device with the same - Google Patents

Abstract

A keyboard module includes a circuit board, keys, a magnetic component and a connecting rod. The key includes a keycap, a magnetic element and a supporting device. The keycap includes a top surface. The magnetic element is located in the key cap. The supporting device is located between the keycap and the circuit board, and the supporting device is adapted to support the keycap. The magnetic component is located under the circuit board and is configured to the magnetic element. The connecting rod is connected in series with the magnetic component. Wherein, the connecting rod is forced to rotate to drive the magnetic component to rotate, so that the magnetic component and the magnetic element generate magnetic force, driving the keycap to move toward the circuit board, and the keycap is in a lowered state. The present invention also provides an electronic device including the keyboard module.

Description

Keyboard module and electronic device with the keyboard module

A keyboard module, especially a keyboard module that controls the lifting and lowering of keys by magnetic force.

With the advancement of technology, portable electronic products are gradually developing in a thinner direction. Existing portable computers retain a certain key height. However, when the screen is turned off, the keys protruding from the keyboard frame will come into contact with the screen, causing marks or wear on the screen. In addition to damage to the screen, the key caps of the keys are also damaged. Scratches may also appear on the surface.

In order to improve the above problems, existing portable computers will leave a certain gap between the screen and the keyboard frame to accommodate the keys and the parts protruding from the keyboard frame. This is not conducive to thin design.

In view of this, the present disclosure provides a keyboard module according to an embodiment. The keyboard module includes a substrate, a circuit board, a plurality of keys, a plurality of magnetic components and at least one connecting rod.

The circuit board sits on the base plate. Multiple buttons are located above the circuit board, and each button includes a keycap, a magnetic component and a supporting device. The keycaps are located above the circuit board and have a top surface. The magnetic element is located inside the keycap. The supporting device is located between the keycap and the circuit board, and is used to Support keycaps. The number of magnetic components corresponds to the magnetic element, and each magnetic component is located under the substrate and corresponds to the magnetic element. The connecting rod connects the magnetic components in series. Among them, the connecting rod is rotated by a force to drive the magnetic components to rotate, so that each magnetic component generates a magnetic attraction force between each magnetic component and the corresponding magnetic component. The magnetic attraction force drives the keycap to move toward the circuit board, and the keycap appears in a descending state.

According to one embodiment, the connecting rod is rotated by another force to drive the magnetic component to rotate, so that each magnetic component generates repulsive magnetic force with the corresponding magnetic component, driving the keycap to move in a direction away from the circuit board, and the keycap appears rising state.

According to an embodiment, the keyboard module further includes a frame located on the circuit board. The frame has a plurality of openings, and the keys are arranged in the openings. In the lowered state, the keycaps move to a height that is the same as or lower than the top surface in the vertical direction. The position of the surface of the frame.

According to one embodiment, the support device includes a scissor-leg structure and an elastic pad. The scissor-leg structure has a hole, and the elastic pad is located in the hole.

The disclosure also provides an electronic device according to an embodiment, including a keyboard module, a connecting device, a plurality of rotating parts and a rotating shaft device. The keyboard module has a plurality of connecting rods, each connecting rod is connected in series with a portion of the magnetic components, and one end of each connecting rod is defined as the first end. The connection device is located below the keyboard module, and includes a connecting piece and a plurality of sliding blocks. The connecting piece includes a plurality of bodies and a plurality of movable holes. The bodies and the movable holes are arranged alternately, and the first end of each connecting rod is located in each movable hole. A plurality of sliding blocks are respectively connected to the body. Each rotating member corresponds to each movable hole and is connected in series to each connecting rod. Each rotating member includes a rotating part and a pushed part. The rotating part is connected to the pushed part, and each pushed part is in contact with the corresponding The sliding block. The rotating shaft device is connected to the connecting device. In the descending state, the rotating shaft device is used to drive the connecting member to move from the first position to the second position in the horizontal direction. Each sliding block pushes against the corresponding pushed portion, bringing the The rotating part rotates to provide the power of each connecting rod.

According to some embodiments, the electronic device further includes an auxiliary moving part. The auxiliary moving part includes a first magnetic component and a second magnetic component. The first magnetic component is connected to the connecting member, wherein in the raised state, the first magnetic component and the second magnetic component The two magnetic components have a first spacing, the first spacing is greater than or equal to the distance between the first position and the second position, and there is a mutual repulsion force between the first magnetic component and the second magnetic component; in the descending state, the first magnetic component There is an attractive force between the first magnetic component and the second magnetic component, driving the first magnetic component to move toward the second magnetic component.

According to some embodiments, the electronic device further includes an auxiliary moving part, the auxiliary moving part includes a rack and a gear, the rack is connected to the connecting member, wherein in the raised state, the gear meshes with the rack and has a second distance from the connecting member. , the second distance is greater than or equal to the distance between the first position and the second position; in the descending state, the gear rolls on the rack, driving the connecting piece to move toward the gear.

According to some embodiments, the keyboard module includes a frame with a simple structure, which helps manufacturers reduce production costs. According to some embodiments, the keyboard module is applied to electronic devices, such as notebook computers, to meet the thinning requirements. According to some embodiments, through the magnetic force generated by the magnetic element and the magnetic component (which is less than the supporting force of the supporting device, or is a repulsive force), the user can feel that the key is stable and does not float when the key is pressed.

According to some embodiments, the electronic device controls the rotation of the magnetic component through relative movement of the rotating shaft device, the connecting device, the connecting rod and other devices, and further drives the lifting and lowering of the overall button. With this structural design, compared with the existing technology, it can be driven at a lower speed It is powerfully completed and has the effect of noise reduction.

100: Electronic devices

1: Keyboard module

11:Substrate

12:Circuit board

13:Button

131:Keycap

131a:Top surface

131b: Bottom surface

132:Magnetic components

1321: Introduction surface

133:Support device

1331: Scissor foot structure

1332:Elastic pad

14:Magnetic parts

141: First magnetic surface

142: Second magnetic surface

15,15’: connecting rod

151:First end

16:Frame

161:Open your mouth

2:Connection device

21: Connectors

211:Ontology

212:movable hole

22: Rotating parts

221:Rotating part

222: Recommended Department

23:Rotating shaft device

24,25: Auxiliary mobile department

241:First magnetic component

2411:First magnetic pole

2412:Second magnetic pole

242:Second magnetic component

2421:The third magnetic pole

2422:The fourth magnetic pole

251:Rack

252:Gear

26:Sliding block

3: Shell

4:Screen

D1: vertical direction

D2: horizontal direction

H1: first spacing

H2: second distance

P1: first position

P2: second position

[Fig. 1] is a schematic diagram showing the appearance of a keyboard module according to an embodiment of the present disclosure.

[Fig. 2] is a schematic diagram of a button in a raised state according to an embodiment of the present disclosure.

[Fig. 3] A schematic diagram of the button of the embodiment shown in Fig. 2 in a lowered state.

[Fig. 4] is a schematic diagram of a button in a raised state according to an embodiment of the present disclosure.

[Fig. 5] is a schematic diagram illustrating the relationship between the connecting device and the rotating shaft device in the electronic device according to an embodiment of the present disclosure.

[Fig. 6] A schematic diagram illustrating the relationship between the connecting device and the rotating shaft device in the embodiment shown in Fig. 5.

[Fig. 7] is a schematic diagram illustrating the relationship between the connecting device and the auxiliary moving part in the electronic device according to an embodiment of the present disclosure.

[Fig. 8] A schematic diagram illustrating the relationship between the connecting device and the auxiliary moving part in the embodiment shown in Fig. 7.

[Fig. 9] is a schematic diagram illustrating the relationship between the connecting device and the auxiliary moving part in the electronic device according to an embodiment of the present disclosure.

[Fig. 10] A schematic diagram of the relationship between the connecting device and the auxiliary moving part in the embodiment shown in Fig. 9.

Please refer to FIGS. 1 to 4 . FIG. 1 is a schematic diagram of the appearance of a keyboard module 1 according to an embodiment of the present disclosure. FIG. 2 is a schematic diagram of the button 13 in a raised state according to an embodiment of the present disclosure. FIG. 3 is a schematic diagram of the button 13 of the embodiment shown in FIG. 2 in a lowered state.

As shown in FIGS. 2 and 3 , the keyboard module 1 includes a substrate 11 , a circuit board 12 , a plurality of keys 13 , a plurality of magnetic components 14 and connecting rods 15 . The circuit board 12 is located on the base plate 11 . A plurality of buttons 13 are located above the circuit board 12 , and each button 13 includes a keycap 131 , a magnetic component 132 and a supporting device 133 . The keycap 131 is located above the circuit board 12, and there is a gap between the keycap 131 and the circuit board 12. There is 13 strokes of the key (that is, space for the key cap 131 to move up and down). The keycap 131 has a top surface 131a and an opposite bottom surface 131b, and the magnetic element 132 is located in the keycap 131. According to some embodiments, the magnetic element 132 is located on the bottom surface 131b of the keycap 131 (for example, the magnetic element 132 is adhered to the bottom surface 131b). According to some embodiments, part or all of the magnetic element 132 is buried in the bottom surface 131b (for example, the magnetic element 132 is embedded in the bottom surface 131b of the keycap 131 through injection molding, so that a part or surface of the magnetic element 132 Exposing the bottom surface 131b). The support device 133 is located between the keycap 131 and the circuit board 12 . When the keycap 131 is raised, the support device 133 provides a supporting force to support the keycap 131 so that it has a certain height in the vertical direction D1 . The supporting device 133 has elasticity. When the keycap 131 is pressed by force (the force received is greater than the supporting force), the supporting device 133 provides a restoring force to restore the position of the keycap 131 . According to some embodiments, the support device 133 includes a scissor-leg structure 1331 and an elastic pad 1332. The scissor-leg structure 1331 has a hole, and the elastic pad 1332 is located in the hole. According to some embodiments, the elastic pad 1332 is made of rubber.

The number of magnetic components 14 corresponds to the magnetic elements 132 , and each magnetic component 14 is located under the substrate 11 and corresponds to the magnetic elements 132 . The connecting rod 15 is connected in series with the magnetic component 14 . Among them, the connecting rod 15 is rotated by a force to drive the magnetic component 14 to rotate, so that each magnetic component 14 and the corresponding magnetic element 132 generate a magnetic attraction force, and the magnetic attraction force is greater than the supporting force of the supporting device 133. And the keycap 131 is driven to move toward the circuit board 12, and the keycap 131 is in a descending state.

The force exerted on the connecting rod 15 can be the driving force provided by a connected motor, or the connecting rod 15 can be rotated through the action of the rotating shaft device 23 . This disclosure is not limited.

Both the magnetic component 14 and the magnetic element 132 have two surfaces with different magnetic poles. According to the embodiment shown in Figures 2 and 3, the surface of the magnetic component 132 facing the magnetic component 14 is defined as the guided surface 1321, and the two surfaces of the magnetic component 14 are respectively defined as the first magnetic surface 141 and the second magnetic Surface 142. As shown in FIG. 2 , when the keycap 131 is in a raised state, the guided surface 1321 faces between the first magnetic surface 141 and the second magnetic surface 142 in the vertical direction D1. At this time, the magnetic element 132 and the magnetic component 14 The magnetic force between them is small, and the supporting force provided by the supporting device 133 is greater than the magnetic force, so the keycap 131 is still in a raised state. When the keycap 131 is in a descending state, as shown in FIG. 3 , the connecting rod 15 is rotated by force and drives the magnetic component 14 to rotate. The first magnetic surface 141 of the magnetic component 14 faces the guided surface 1321. Since the guided surface 1321 The magnetic poles are different from those of the first magnetic surface 141 , so magnetic attraction force is generated between the magnetic element 132 and the magnetic component 14 , causing the keycap 131 to move toward the circuit board 12 , and the key 13 appears to be folded. This disclosure does not limit the magnetic poles of the induced surface 1321 and the first magnetic surface 141. When the induced surface 1321 is an N pole, the first magnetic surface 141 is an S pole; when the induced surface 1321 is an S pole, the first magnetic surface 1321 is an S pole. Surface 141 is the N pole. According to some embodiments, the connecting rod 15 is rotated by another force, causing the magnetic component 14 to return to the state shown in FIG. 2 , where the keyboard module 1 is in a raised state due to the support of the supporting device 133 .

Please refer to FIG. 4 , which is a schematic diagram of the button 13 in a raised state according to an embodiment of the present disclosure. According to this embodiment, the connecting rod 15 is rotated by another force, driving the second magnetic surface 142 of the magnetic component 14 to face the guided surface 1321 of the magnetic element 132. Since the magnetic poles of the second magnetic surface 142 and the guided surface 1321 are the same, A repulsive magnetic force is generated between the magnetic component 14 and the magnetic element 132 to drive the keycap 131 to move in a direction away from the circuit board 12 , whereupon the keycap 131 returns to the raised state. The other force can be the driving force provided by the motor, or the rotation of the connecting rod 15 through the rotating shaft device 23 (which can be the same as or different from the above-mentioned rotating shaft device 23). This disclosure is not limited.

According to the embodiment shown in FIG. 3 and FIG. 4 , the keyboard module 1 also includes a frame 16 located on the circuit board 12 . The frame 16 has a plurality of openings 161 , and the number of openings 161 corresponds to the number of keys. Quantity of 13. The key 13 is disposed in the opening 161 . When the key cap 131 is in a lowered state, the key cap 131 moves to a position where the height of the top surface 131 a in the vertical direction D1 is the same as or lower than the surface of the frame 16 . According to some embodiments, when the keyboard module 1 is used in an electronic device 100, such as a notebook computer, when the screen 4 is closed on the keyboard module 1 (see Figure 8), the keyboard module 1 is in a lowered state, and the keys 13 The keycap 131 moves in the direction of the circuit board 12 until the height of the top surface 131a of the keycap 131 in the vertical direction D1 is equal to or lower than the surface of the frame 16 , thereby preventing the occurrence between the keycap 131 and the screen 4 The problem of scratching each other also makes notebook computers meet the requirements of thinning. In some embodiments, the frame 16 is part of the housing 3 (see FIG. 7 ) of the electronic device 100 to which it is applied.

Please refer to FIGS. 5 and 6 . FIG. 5 is a schematic diagram illustrating the relationship between the connecting device 2 and the rotating shaft device 23 in the electronic device 100 according to an embodiment of the present disclosure. FIG. 6 is a schematic diagram of the relationship between the connecting device 2 and the rotating shaft device 23 in the embodiment shown in FIG. 5 . Figures 5 and 6 respectively show the functional relationship between the rotating shaft device 23, the connecting device 2 and the connecting rod 15 when the keyboard module 1 is in the raised state and the lowered state. The base plate 11, the circuit board 12 and the plurality of keys 13 are omitted.

The electronic device 100 includes a keyboard module 1, a connecting device 2 and a rotating shaft device 23. The keyboard module 1 has multiple connecting rods 15 , each connecting rod 15 is connected in series with a portion of the magnetic component 14 , and one end of each connecting rod 15 is defined as a first end 151 .

The connecting device 2 is located below the keyboard module 1 . The connecting device 2 includes a connecting piece 21 and a plurality of sliding blocks 26 . The connector 21 includes a plurality of bodies 211 and a plurality of movable holes 212. The bodies 211 and the movable holes 212 are arranged alternately. According to the embodiment shown in FIG. 5 and FIG. 6, the first end 151 of the connecting rod 15 is located in the movable holes 212. The movable hole 212 is a slotted hole. In some embodiments, the movable hole 212 is a long hole extending along the normal direction of the connecting rod 15 . According to some embodiments, the connecting rod The first end 151 of 15 is fixed on a component in the electronic device 100 .

The plurality of sliding blocks 26 are connected to the main body 211 respectively. The rotating member 22 is connected in series to the connecting rod 15 corresponding to the movable hole 212. The rotating member 22 includes a rotating part 221 and a pushed part 222. The rotating part 221 is connected to the pushed part 222, and the pushed part 222 is in contact with the corresponding Sliding block 26, as shown in Figure 5.

The rotating shaft device 23 is connected to the connecting device 2. According to some embodiments, the rotating shaft device 23 is connected to the screen 4 of the electronic device 100. The screen 4 is pivotally connected to the housing 3. The opening and closing of the screen 4 relative to the housing 3 will link the rotating shaft device. 23 operations. When the screen 4 is closed relative to the housing 3, the keyboard module 1 is in a descending state. At this time, the rotating shaft device 23 drives the connecting member 21 to move from the first position P1 to the second position P2 along the horizontal direction D2, and slides The block 26 pushes against the corresponding pushed part 222, driving the rotating part 221 to rotate, providing the force of the connecting rod 15 to rotate the connecting rod 15, and also drives the magnetic component 14 to rotate, causing the magnetic component 132 to interact with the magnetic component 14. The magnetic force drives the keycap 131 to move toward the circuit board 12 .

When the screen 4 is opened relative to the housing 3, the keyboard module 1 will be in the raised state again, and the rotating shaft device 23 drives the connecting member 21 to move to the first position P1 from the second position P2 in the horizontal direction D2. 222 returns to the state where it is not pushed by the sliding block 26. The sliding block 26 is in contact with the pushed portion 222 as shown in Figure 4. The pushed portion 222 also drives the magnetic component 14 to return. Here, the magnetic component 132 The magnetic force between the magnetic component 14 and the magnetic component 14 is small (see Figure 2), or is a repulsive magnetic force (see Figure 4). When the magnetic force of attraction between the magnetic element 132 and the magnetic component 14 is less than the supporting force provided by the supporting device 133 to the keycap 131 , the keycap 131 returns to its original height in the vertical direction D1 by virtue of the supporting force. When the magnetic element 132 and the magnetic component 14 generate repulsive magnetic force, it can further assist the supporting device 133 in supporting the keycap 131 and help the keycap 131 return to its original state. The height in the vertical direction D1. The aforementioned repulsive magnetic force does not affect the user's pressing of the button 13. The magnitude of the aforementioned supporting force, mutual attraction magnetic force, and repulsive magnetic force depends on the manufacturer's material selection and size design, and is not limited by this disclosure.

Please refer to FIGS. 7 and 8 . FIG. 7 is a schematic diagram illustrating the relationship between the connecting device 2 and the auxiliary moving part in the electronic device 100 according to an embodiment of the present disclosure. FIG. 8 is a schematic diagram of the relationship between the connection device 2 and the auxiliary moving part in the embodiment shown in FIG. 7 . According to this embodiment, the electronic device 100 further includes an auxiliary moving part 24. The auxiliary moving part 24 includes a first magnetic component 241 and a second magnetic component 242. The first magnetic component 241 is connected to the connector 21. The first magnetic component 241 is provided, for example. Between the connecting member 21 and the rotating shaft device 23, the first magnetic component 241 and the second magnetic component 242 have a first distance H1, and the first distance H1 is greater than or equal to the distance between the first position P1 and the second position P2. The two magnetic poles of the first magnetic component 241 are defined as first magnetic poles 2411 and second magnetic poles 2412, and the two magnetic poles of the second magnetic component 242 are defined as third magnetic poles 2421 and fourth magnetic poles 2422. According to this embodiment, the second magnetic component 242 can be disposed on another connecting rod 15′, and the other connecting rod 15′ is linked with the rotating shaft device 23.

As shown in FIG. 7 , when the keycap 131 is raised (that is, the screen 4 is in an open state relative to the housing 3 ), there is a mutual repulsion force between the first magnetic component 241 and the second magnetic component 242 , and the relationship between the two is maintained. According to the first distance H1, that is to say, when the keycap 131 is raised, the first magnetic pole 2411 faces the third magnetic pole 2421, and the two magnetic poles are the same to generate a repulsive force. As shown in Figure 8, when the keycap 131 is in a lowered state (that is, the screen 4 is in a closed state relative to the housing 3), the other connecting rod 15' is driven by the rotating shaft device 23 to rotate, so that the first magnetic pole 2411 faces the third For the four magnetic poles 2422, since the magnetic poles of the first magnetic pole 2411 and the fourth magnetic pole 2422 are different, an attractive force is generated between them, driving the first magnetic component 241 to move toward the second magnetic component 242. Such as screen 4 again When the keyboard module 1 is opened for the first time relative to the housing 3, the keyboard module 1 will be in a raised state. The other link 15' is driven by the rotating shaft device 23 to rotate. The other link 15' rotates the second magnetic component 242 to return The state shown in Figure 7. With this structural design, the auxiliary moving part 24 can assist the connecting member 21 to move back and forth between the first position P1 and the second position P2.

Please refer to FIGS. 9 and 10 . FIG. 9 is a schematic diagram illustrating the relationship between the connecting device 2 and the auxiliary moving part 25 in the electronic device 100 according to an embodiment of the present disclosure. FIG. 10 is a schematic diagram of the relationship between the connection device 2 and the auxiliary moving part 25 in the embodiment shown in FIG. 9 . According to this embodiment, the auxiliary moving part 25 includes a rack 251 and a gear 252 , and the rack 251 is connected to the connecting member 21 . When the keycap 131 is raised (that is, the screen 4 is in an open state relative to the housing 3), the gear 252 is engaged with the rack 251 and has a second distance H2 between the connecting member 21, and the second distance H2 is greater than or equal to the first position P1. distance from the second position P2. When the keycap 131 is in a lowered state (that is, the screen 4 is in a closed state relative to the housing 3), the gear 252 rolls on the rack 251 in a counterclockwise direction, causing the connecting member 21 to move toward the gear 252.

When the screen 4 is open relative to the housing 3 again, the gear 252 rolls on the rack 251 clockwise, causing the connecting member 21 to move away from the gear 252 and return to the state shown in FIG. 9 . With this structural design, the auxiliary moving part 25 can assist the connecting piece 21 to move back and forth between the first position P1 and the second position P2.

According to some embodiments, there are two rotating shaft devices 23 and connecting devices 2 , which are respectively disposed on two opposite sides of the housing 3 (ie, both ends of the connecting rod 15 ). There are two rotating parts 22 on the connecting rod 15, which are respectively located at the first end 151 and the opposite second end (not shown) of the connecting rod 15. Regarding the operating relationship between the rotating shaft device 23, the connecting device 2 and the connecting rod 15, please refer to the above description.

According to some embodiments, the keyboard module includes a frame with a simple structure, which helps manufacturers reduce production costs. According to some embodiments, the keyboard module is applied to electronic devices, such as notebook computers, to meet the thinning requirements. According to some embodiments, through the magnetic force generated by the magnetic element and the magnetic component (which is less than the supporting force of the supporting device, or is a repulsive force), the user can feel that the key is stable and does not float when the key is pressed.

According to some embodiments, the electronic device controls the rotation of the magnetic component through relative movement of the rotating shaft device, the connecting device, the connecting rod and other devices, and further drives the lifting and lowering of the overall button. With this structural design, compared with the existing technology, it can be driven at a lower speed It is powerfully completed and has the effect of noise reduction.

11:Substrate

12:Circuit board

13:Button

131:Keycap

131a:Top surface

131b: Bottom surface

132:Magnetic components

1321: Introduction surface

133:Support device

1331: Scissor foot structure

1332:Elastic pad

14:Magnetic parts

141: First magnetic surface

142: Second magnetic surface

15: Connecting rod

16:Frame

161:Open your mouth

D1: vertical direction

Claims (8)

A keyboard module includes: a substrate; a circuit board located on the substrate; a plurality of keys located above the circuit board; each key includes: a keycap located above the circuit board; the keycap has a The top surface; a magnetic component located in the keycap; and a supporting device located between the keycap and the circuit board, the supporting device is used to support the keycap; a plurality of magnetic components, the number corresponding to the magnetic force component, each magnetic component is located below the base plate and corresponds to the magnetic component; at least one connecting rod is connected in series with the magnetic components, and one end of the at least one connecting rod is defined as a first end; a connecting device is located on the base plate Below, the connecting device includes: a connecting piece including a body and a movable hole, wherein the first end of the connecting rod is located in the movable hole; and a sliding block correspondingly connected to the body; a rotating member , the rotating member is connected in series to the connecting rod corresponding to the movable hole, the rotating member includes a rotating part and a pushed part, the rotating part is connected to the pushed part, and the pushed part is in contact with the corresponding the sliding block; and a rotating shaft device connected to the connecting device, Wherein, in a descending state, the rotating shaft device is used to drive the connecting member to move from a first position to a second position in a horizontal direction, and the sliding block pushes against the corresponding pushed part to drive the rotating part to rotate , so that the at least one connecting rod drives the magnetic components to rotate, and generates a magnetic attraction force between each magnetic component and the corresponding magnetic component, driving the keycap to move toward the circuit board; upon rising state, the rotating shaft device is used to drive the connecting member to move to the first position along the second position in the horizontal direction, so that the at least one connecting rod further drives the magnetic components to rotate, and each magnetic component is connected to the first position respectively. Correspondingly, a repulsive magnetic force is generated between the magnetic components, driving the keycap to move in a direction away from the circuit board. The keyboard module as claimed in claim 1, further comprising a frame located on the circuit board, the frame having a plurality of openings, each of the keys being disposed in the opening, and in the lowered state, the keycaps move to a position where the height of the top surfaces in a vertical direction is the same as or lower than one surface of the frame. The keyboard module of claim 1, wherein the support device includes a scissor foot structure and an elastic pad, the scissor foot structure has a hole, and the elastic pad is located in the hole. An electronic device, including: a keyboard module, including: a substrate; a circuit board located on the substrate; a plurality of keys located above the circuit board, each of the keys including: a keycap located above the circuit board , the keycap has a top surface; A magnetic component is located in the keycap; and a supporting device is located between the keycap and the circuit board, the supporting device is used to support the keycap; a plurality of magnetic components, the number corresponding to the magnetic components, each The magnetic component is located under the base plate and corresponds to the magnetic component; and a plurality of connecting rods respectively connect parts of the magnetic components in series; one end of each connecting rod is defined as a first end; a connecting device is located on the keyboard Below the module, the connecting device includes: a connecting piece, including a plurality of bodies and a plurality of movable holes. The bodies and the movable holes are alternately arranged, wherein the first end of each connecting rod is located on each of the connecting rods. Movable holes; and a plurality of sliding blocks, respectively connected to the bodies; a plurality of rotating parts, each of which corresponds to each of the movable holes and is connected in series to each of the connecting rods, each of which The rotating member includes a rotating part and a pushed part, the rotating part is connected to the pushed part, each pushed part is in contact with the corresponding sliding block; and a rotating shaft device is connected to the connecting device, Wherein, in a descending state, the rotating shaft device is used to drive the connecting member to move from a first position to a second position in a horizontal direction, and each sliding block pushes against the corresponding pushed portion to drive the rotation The whole part rotates, so that the connecting rods drive the magnetic components to rotate, and a magnetic attraction force is generated between each magnetic component and the corresponding magnetic component, driving the keycap to move toward the circuit board; in one liter In the up state, the rotating shaft device is used to drive the connecting member to move to the first position along the second position in the horizontal direction, so that the connecting rods further drive the magnetic components to rotate, and each magnetic component is connected to the first position respectively. Correspondingly, a repulsive magnetic force is generated between the magnetic components, driving the keycap to move in a direction away from the circuit board. The electronic device according to claim 4 further includes an auxiliary moving part, the auxiliary moving part includes a first magnetic component and a second magnetic component, the first magnetic component is connected to the connecting member, wherein in the In the up state, the first magnetic component and the second magnetic component have a first distance, the first distance is greater than or equal to the distance between the first position and the second position, and the first magnetic component and the third There is a mutual repulsion force between the two magnetic components; in the descending state, there is an attractive force between the first magnetic component and the second magnetic component, driving the first magnetic component to move toward the second magnetic component. The electronic device according to claim 4, further comprising an auxiliary moving part, the auxiliary moving part including a rack and a gear, the rack is connected to the connecting piece, wherein in the raised state, the gear meshes There is a second spacing between the rack and the connecting piece, and the second spacing is greater than or equal to the distance between the first position and the second position; in the descending state, the gear rolls on the rack, The connecting piece is driven to move toward the gear. The electronic device according to claim 4, wherein the keyboard module further includes a frame located on the circuit board, the frame has a plurality of openings, each of the keys is disposed in the opening, and in the lowered state, the The keycaps are moved to a position where the height of the top surfaces in a vertical direction is the same as or lower than a surface of the frame. The electronic device as claimed in claim 4, wherein the support device includes a scissor-leg structure and an elastic pad, the scissor-leg structure has a hole, and the elastic pad is located in the hole.