TWM554585U - Ultra-thin electro-optic switch capable of being stably pressed down - Google Patents

Description

Ultra-thin photoelectric switch that can be pressed down smoothly

The utility model relates to the field of switch technology, in particular to an ultra-thin photoelectric switch which can be smoothly pressed down.

The keyboard switch, as the name implies, is a switch applied and mounted on a keyboard. The main structure of the switch includes a base, an upper cover, a static contact piece, a movable contact piece and a button member, and the upper cover and the base are enclosed to form a receiving cavity. The static contact piece, the movable contact piece and the button member are disposed in the accommodating cavity, and one end of the button member is exposed outside the accommodating cavity, and the button member is moved up and down by pressing the manipulation button member, thereby acting on the button member On the movable contact piece, the movable contact piece is connected or disconnected from the static contact piece.

The above-mentioned existing keyboard switch structure can provide the user with the function of disconnecting or conducting the connection between the static contact piece and the movable contact piece, and is indeed progressive, but in actual use, it finds its own structure and performance. There are still many deficiencies, which cause the existing keyboard switch to fail to achieve the best use effect and work efficiency in practical applications. The shortcomings are summarized as follows: the button of the switch of the existing keyboard is in the form of a guide post, making the whole product The thickness is thick, and the button member is mounted on the bottom center of the keycap. When the finger only acts on one side edge of the keycap, the button member cannot be smoothly pressed, and the conduction between the static contact piece and the movable contact piece cannot be achieved. It is inconvenient to use; and the current keyboard switch adopts the contact mode of the movable contact piece and the static contact piece. The movable contact piece and the static contact piece are both made of metal material, which is easily oxidized, resulting in poor contact.

In view of this, the present invention is directed to the lack of the prior art, and the main purpose thereof is to provide an ultra-thin photoelectric switch that can be smoothly pressed down, which can effectively solve the problem that the existing keyboard switch is thick, inconvenient to use, and prone to poor contact. .

In order to achieve the above object, the utility model adopts the following technical scheme: an ultra-thin photoelectric switch that can be smoothly pressed down, including a seat body, an infrared tube, a key cap, a balance frame mechanism, a reset mechanism, and a device for changing the infrared tube. a light-shielding member that causes light to be turned on or off by the infrared tube; the infrared tube is disposed on the base, the infrared tube has a light emitting end and a light receiving end; the key cap covers the infrared tube, and the balance frame mechanism And the resetting mechanism is located under the keycap, the gimbal mechanism guides the keycap to be smoothly pressed, and the light shielding member can move up and down with the keycap, the balance frame mechanism or the resetting mechanism, and the resetting mechanism urges the keycap Or the gimbal mechanism is reset.

As a preferred solution, the base body is provided with a support body, and the infrared tube and the support body are separately disposed on the base body, and the upper end of the support body is provided with a point groove; the balance frame mechanism includes an upper frame and a lower frame The upper frame and the lower frame cross each other and can be pivotally connected together, and the lower end of the upper frame and the lower end of the lower frame are respectively pivotally connected to the two ends of the base, the upper end of the upper frame and the lower The upper end of the frame is respectively pivotally connected to the bottom end of the key cap, and the upper frame and the lower frame form an X-shaped structure; the reset mechanism includes a flipping member and a tension spring, and one end of the flip member is in the fulcrum slot. The flip member is disposed upside down relative to the support body, and two ends of the tension spring are respectively connected to the other end of the flip member and the upper end of the upper frame.

As a preferred solution, the light shielding member extends integrally on the flip member.

As a preferred solution, the light shielding member integrally extends from the bottom of the keycap.

As a preferred solution, the light shielding member extends integrally on the gimbal mechanism.

As a preferred solution, the infrared tube is a refractive infrared tube, and the light emitting end and the light receiving end are packaged on the same body, and the light blocking member is disposed above and below the body.

As a preferred embodiment, the infrared tube is an infrared ray tube, and includes a transmitting tube and a receiving tube. The light emitting end is disposed on the transmitting tube, and the light receiving end is disposed on the receiving tube, and the light shielding member is disposed. It can be arranged up and down between the launch tube and the receiving tube.

Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, according to the above technical solution, the utility model can change the light propagation direction of the infrared tube by using the light shielding member, so that the infrared tube realizes light conduction. Or disconnected, instead of the traditional method of using the movable contact piece and the contact piece to contact each other, effectively avoiding the contact failure caused by oxidation, the stability is better, the product has a longer service life, and the use of the balance frame mechanism The key cap is smoothly pressed down, and the light shielding member can move up and down with the key cap, the balance frame mechanism or the reset mechanism, instead of the traditional form of the guide post, so that the overall thickness of the product is thinned, and no matter the finger acts on The balance frame mechanism can realize the joint movement at any position of the keycap, so that the keycap can be smoothly pressed down, so that the movement of the shade member is more precise and sensitive, and the product is more convenient to use.

In order to explain the structural features and functions of the present invention more clearly, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

This new part:

10‧‧‧ body

20‧‧‧Infrared tube

21‧‧‧Light emitting end

22‧‧‧Light receiving end

23‧‧‧ Subject

24‧‧‧ launch tube

25‧‧‧ receiving tube

30‧‧‧Key Cap

40‧‧‧balance frame mechanism

41‧‧‧上上

42‧‧‧ Lower frame

50‧‧‧Reset mechanism

51‧‧‧Flip parts

52‧‧‧Spring

60‧‧‧Lighting parts

70‧‧‧Support

71‧‧‧ fulcrum slot

Fig. 1 is a schematic view showing the structure of a first preferred embodiment of the present invention in a free state.

Fig. 2 is a schematic view showing the structure of the first preferred embodiment of the present invention in an on state.

Figure 3 is a block diagram showing the structure of the second preferred embodiment of the present invention in a free state.

Fig. 4 is a schematic view showing the structure of the second preferred embodiment of the present invention in an on state.

Fig. 5 is a schematic view showing the structure of the third preferred embodiment of the present invention in a free state.

Figure 6 is a block diagram showing the structure of the third preferred embodiment of the present invention in an on state.

Figure 7 is a block diagram showing the structure of the fourth preferred embodiment of the present invention in a free state.

Figure 8 is a simplified diagram of the structural principle of Figure 7.

Figure 9 is a block diagram showing the structure of the fourth preferred embodiment of the present invention in an on state.

Figure 10 is a simplified diagram of the structural principle of Figure 9.

Figure 11 is a block diagram showing the structure of the fifth preferred embodiment of the present invention in a free state.

Figure 12 is a block diagram showing the structure of the fifth preferred embodiment of the present invention in an on state.

Figure 13 is a block diagram showing the structure of the sixth preferred embodiment of the present invention in a free state.

Figure 14 is a block diagram showing the structure of the sixth preferred embodiment of the present invention in an on state.

Please refer to FIG. 1 and FIG. 2 , which shows a specific structure of the first preferred embodiment of the present invention, including a seat body 10 , an infrared tube 20 , a key cap 30 , a balance frame mechanism 40 , and a reset mechanism 50 . And a light blocking member 60.

In this embodiment, the base 10 is provided with a support body 70, and the infrared tube 20 and the support body 70 are disposed on the base body 10 separately from each other. A fulcrum groove 71 is provided at the upper end of the support body 70.

The infrared tube 20 has a light emitting end 21 and a light receiving end 22. In the embodiment, the infrared tube 20 is a refractive infrared tube, and the light emitting end 21 and the light receiving end 22 are packaged on the same main body 23.

The gimbal mechanism 40 includes an upper frame 41 and a lower frame 42. The upper frame 41 and the lower frame 42 cross each other and can be pivotally connected together. The lower end of the upper frame 41 and the lower end of the lower frame 42 are respectively coupled to the base 10. The upper end of the upper frame 41 and the upper end of the lower frame 42 are respectively pivotally connected to the bottom ends of the key cap 30, and the upper frame 41 and the lower frame 42 form an X-shaped structure.

The reset mechanism 50 causes the keycap 30 or the gimbal mechanism 40 to be reset. In the present embodiment, the reset mechanism 50 causes the gimbal mechanism 40 to be reset, thereby causing the keycap 30 to be reset. Specifically, in the present embodiment, the The reset mechanism 50 includes a flip member 51 and a tension spring 52. One end of the flip member 51 is abutted in the fulcrum slot 71. The flip member 51 is disposed upside down relative to the support body 70. Both ends of the tension spring 52 and the flip member are respectively The other end of 51 is connected to the upper end of the upper frame 41.

The key cap 30 covers the infrared tube 20, and the balance frame mechanism 40 and the reset mechanism 50 are both located under the keycap 30. The balance frame mechanism 40 guides the keycap 30 to be smoothly pressed. The shade member 60 is used to change the infrared tube 20. The light-transmitting direction is such that the infrared tube 20 is turned on or off, and the light-shielding member 60 moves up and down with the key cap 30, the balance frame mechanism 40 or the reset mechanism 50. In this embodiment, the light-shielding member 60 can be disposed up and down. Above the main body 23, and the light blocking member 60 integrally extends on the flip member 51.

In use, as shown in FIG. 1, in the free state, the light blocking member 60 is located above the infrared tube 20. At this time, the light receiving end 22 cannot receive the infrared light emitted from the light emitting end 21, and the switch is in the off state; Cap 30, such as As shown in FIG. 2, the upper frame 41 and the lower frame 42 are moved downward to be stacked together, and at the same time, the tension spring 52 is stretched, and the flipping member 51 is turned downward so that the light blocking member 60 is also turned down and close. Infrared tube 20, at this time, the infrared ray emitted from the light emitting end 21 is reflected by the light shielding member 60 and is incident on the light receiving end 22, and the light receiving end 22 can receive the infrared ray to achieve conduction; when the keycap 30 is released, the pull The spring 52 recovers the deformation. Under the action of the tension spring 52, the upper frame 41 and the lower frame 42 are opened upward, and the key cap 30 is upwardly reset. At the same time, the light blocking member 60 is also reset upward, so that the light receiving end 22 cannot receive the light emission. The infrared rays emitted from the terminal 21 are again in the off state.

Referring to FIG. 3 and FIG. 4, the specific structure of the second preferred embodiment of the present invention is shown. The specific structure of the present embodiment is basically the same as the specific structure of the first preferred embodiment. The difference is that in the embodiment, the light shielding member 60 integrally extends from the bottom of the keycap 30.

In use, as shown in FIG. 3, in the free state, the light blocking member 60 is located above the infrared tube 20. At this time, the light receiving end 22 cannot receive the infrared light emitted from the light emitting end 21, and the switch is in the off state; When the cap 30 is shown in FIG. 4, the upper frame 41 and the lower frame 42 are moved downward to be stacked together, and at the same time, the tension spring 52 is stretched, and the flipping member 51 is turned downward, and the light blocking member 60 is attached. The key cap 30 is also moved downward to be close to the infrared tube 20. At this time, the infrared rays emitted from the light emitting end 21 are reflected by the light shielding member 60 and then directed to the light receiving end 22, and the light receiving end 22 can receive infrared rays to achieve conduction; When the keycap 30 is released, the tension spring 52 is restored to deformation. Under the action of the tension spring 52, the upper frame 41 and the lower frame 42 are opened upward, and the key cap 30 is upwardly reset, and at the same time, the light blocking member 60 is also upward with the keycap 30. The resetting causes the light receiving end 22 to fail to receive the infrared ray emitted from the light emitting end 21, and is again in the off state.

Referring to FIG. 5 and FIG. 6 , the specific structure of the third preferred embodiment of the present invention is shown. The specific structure of the present embodiment is substantially the same as the specific structure of the first preferred embodiment. The difference is that in the embodiment, the light shielding member 60 integrally extends on the balance frame mechanism 40.

In use, as shown in FIG. 5, in the free state, the light blocking member 60 is located above the infrared tube 20. At this time, the light receiving end 22 cannot receive the infrared light emitted from the light emitting end 21, and the switch is in the off state; When the cap 30 is shown in FIG. 6, the upper frame 41 and the lower frame 42 are moved downward to be stacked together, and at the same time, the tension spring 52 is stretched, and the flipping member 51 is turned downward, and the light blocking member 60 is attached. The gimbal mechanism 40 is also moved downward to be close to the infrared tube 20. At this time, the infrared rays emitted from the light emitting end 21 are reflected by the light shielding member 60 and then directed to the light receiving end 22, and the light receiving end 22 can receive infrared rays, thereby achieving conduction. When the keycap 30 is released, the tension spring 52 resumes deformation, and under the action of the tension spring 52, the upper frame 41 and the lower frame 42 are opened upward, and the key cap 30 is upwardly reset, and at the same time, the light shielding member 60 also follows the balance frame mechanism. The upward reset of 40 causes the light receiving end 22 to fail to receive the infrared ray emitted from the light emitting end 21, and is again in the off state.

Referring to FIG. 7 and FIG. 10, the specific structure of the fourth preferred embodiment of the present invention is shown. The specific structure of the present embodiment is substantially the same as the specific structure of the first preferred embodiment. The difference is that, in this embodiment, the infrared tube 20 is a through-beam type infrared tube, and includes a transmitting tube 24 and a receiving tube 25. The light emitting end 21 is disposed on the transmitting tube 24, and the light receiving end 22 is disposed. The receiving member 25 is disposed between the transmitting tube 24 and the receiving tube 25 so as to be movable up and down.

In use, as shown in FIGS. 7 and 8, in the free state, the light blocking member 60 is located between the transmitting tube 24 and the receiving tube 25, at this time, due to the light blocking member 60 The occlusion, the light receiving end 22 cannot receive the infrared ray emitted from the light emitting end 21, and the switch is in the off state; when the key cap 30 is pressed, as shown in FIGS. 9 and 10, the upper frame 41 and the lower frame 42 are downward. At the same time, the tension spring 52 is stretched, the flip member 51 is turned down, and the light blocking member 60 is also turned down with the flip member 51. At this time, the light blocking member 60 no longer blocks the infrared rays. The infrared ray emitted from the light emitting end 21 is directly directed to the light receiving end 22, and the light receiving end 22 can receive infrared rays to achieve conduction; when the keycap 30 is released, the tension spring 52 recovers deformation, and acts as the tension spring 52. Next, the upper frame 41 and the lower frame 42 are opened upward, and the key cap 30 is upwardly reset. At the same time, the light blocking member 60 is also reset upward with the flip member 51, and the light blocking member 60 is again blocked between the transmitting tube 24 and the receiving tube 25, so that the light is made. The receiving end 22 cannot receive the infrared ray emitted from the light emitting end 21, and is again in the off state.

Referring to FIG. 11 and FIG. 12, the specific structure of the fifth preferred embodiment of the present invention is shown. The specific structure of the present embodiment is basically the same as the specific structure of the fourth preferred embodiment. The difference is that, in this embodiment, in the embodiment, the light shielding member 60 integrally extends from the bottom of the keycap 30.

In use, as shown in FIG. 11, in the free state, the light blocking member 60 is located between the transmitting tube 24 and the receiving tube 25. At this time, the light receiving end 22 cannot receive the infrared ray emitted from the light emitting end 21, and the switch is disconnected. State; when the keycap 30 is pressed, as shown in FIG. 12, the upper frame 41 and the lower frame 42 are moved downward to be stacked together, and at the same time, the tension spring 52 is stretched, and the flipping member 51 is turned down. The light blocking member 60 also moves downward with the keycap 30. At this time, the light blocking member 60 no longer blocks the infrared rays, and the infrared rays emitted from the light emitting end 21 directly hit the light receiving end 22, and the light receiving end 22 can receive the infrared rays. Thereby achieving conduction; when the keycap 30 is released, the tension spring 52 is restored to deformation, and under the action of the tension spring 52, the upper frame 41 and the lower frame 42 are opened upward, and the key cap 30 is upwardly reset. At the same time, the light blocking member 60 is also reset upward with the keycap 30, and the light blocking member 60 is again blocked between the transmitting tube 24 and the receiving tube 25, so that the light receiving end 22 cannot be The infrared rays emitted from the light emitting end 21 are received, and are again in an off state.

Referring to FIG. 13 and FIG. 14 , a specific structure of the sixth preferred embodiment of the present invention is shown. The specific structure of the present embodiment is substantially the same as the specific structure of the fourth preferred embodiment. The difference is that in the embodiment, the light shielding member 60 integrally extends on the balance frame mechanism 40.

In use, as shown in FIG. 13, in the free state, the light blocking member 60 is located between the transmitting tube 24 and the receiving tube 25. At this time, the light receiving end 22 cannot receive the infrared ray emitted from the light emitting end 21, and the switch is disconnected. State; when the keycap 30 is pressed, as shown in FIG. 14, the upper frame 41 and the lower frame 42 are moved downward to be stacked together, and at the same time, the tension spring 52 is stretched, and the flipping member 51 is turned downward. The light blocking member 60 also moves downward with the balance frame mechanism 40. At this time, the light blocking member 60 no longer blocks the infrared rays, and the infrared rays emitted from the light emitting end 21 directly hit the light receiving end 22, and the light receiving end 22 can receive the infrared rays. When the keycap 30 is released, the tension spring 52 is restored to deformation. Under the action of the tension spring 52, the upper frame 41 and the lower frame 42 are opened upward, and the key cap 30 is upwardly reset, and at the same time, the light shielding member 60 is also With the upward adjustment of the gimbal mechanism 40, the light blocking member 60 is again blocked between the transmitting tube 244 and the receiving tube 25, so that the light receiving end 22 cannot receive the infrared rays emitted from the light emitting end 21, and is again in the off state.

The design of the utility model focuses on: changing the direction of light propagation of the infrared tube by using the light-shielding member to make the infrared tube realize light conduction or disconnection, instead of the traditional method of using the movable contact piece and the contact piece to contact each other, thereby effectively avoiding the cause Poor contact due to oxidation, better stability, longer product life, and coordination By using the balance frame mechanism to guide the keycap to smoothly press down, the light-shielding member moves up and down with the key cap, the balance frame mechanism or the reset mechanism, instead of the traditional form of the guide post, so that the overall thickness of the product is thinned, and regardless of the finger action At any position of the keycap, the balance frame mechanism can realize linkage, and the keycap can be smoothly pressed down, so that the movement of the shade member is more precise and sensitive, and the product is more convenient to use.

The above is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes, and modifications made to the above embodiments in accordance with the technical spirit of the present invention. All still fall within the scope of the technical solutions of the present invention.

10‧‧‧ body

20‧‧‧Infrared tube

21‧‧‧Light emitting end

22‧‧‧Light receiving end

23‧‧‧ Subject

30‧‧‧Key Cap

40‧‧‧balance frame mechanism

41‧‧‧上上

42‧‧‧ Lower frame

50‧‧‧Reset mechanism

51‧‧‧Flip parts

52‧‧‧Spring

60‧‧‧Lighting parts

70‧‧‧Support

71‧‧‧ fulcrum slot

Claims (7)

An ultra-thin photoelectric switch capable of smoothly pressing down, comprising: a seat body, an infrared tube, a key cap, a balance frame mechanism, a reset mechanism, and a light propagation direction for changing an infrared tube to enable light conduction of the infrared tube or a disconnecting light-shielding member; the infrared tube is disposed on the base body, the infrared tube has a light emitting end and a light receiving end; the key cap covers the infrared tube, and the balance frame mechanism and the resetting mechanism are located under the key cap The gimbal mechanism guides the keycap to smoothly press down, and the shading member can move up and down with the keycap, the gimbal mechanism or the resetting mechanism, and the resetting mechanism causes the keycap or the gimbal mechanism to be reset. The ultrathin photoelectric switch according to claim 1, wherein the base body is provided with a support body, the infrared tube and the support body are separately disposed on the base body, and the upper end of the support body is provided with a fulcrum groove; The gimbal mechanism includes an upper frame and a lower frame, the upper frame and the lower frame cross each other and can be pivotally connected together, and the lower end of the upper frame and the lower end of the lower frame respectively and the two ends of the lower frame The pivoting, the upper end of the upper frame and the upper end of the lower frame are respectively pivotally connected to the bottom ends of the key cap, and the upper frame and the lower frame form an X-shaped structure; the reset mechanism includes a flipping member and a tension spring, One end of the flip member is abutted in the fulcrum groove, and the flip member is disposed upside down relative to the support body, and two ends of the tension spring are respectively connected to the other end of the flip member and the upper end of the upper frame. The ultra-thin photoelectric switch that can be smoothly pressed according to claim 2, wherein the light shielding member extends integrally on the flip member. The ultra-thin photoelectric switch that can be smoothly pressed according to claim 1, wherein the light shielding member extends integrally at the bottom of the keycap. The ultra-thin photoelectric switch that can be smoothly pressed according to claim 1, wherein the light shielding member extends integrally on the gimbal mechanism. The ultra-thin photoelectric switch that can be smoothly pressed according to claim 1, wherein the infrared tube is a refractive infrared tube, and the light emitting end and the light receiving end are packaged on the same body, and the light blocking member is movable up and down Above the main body. An ultra-thin photoelectric switch that can be smoothly pressed according to claim 1, wherein the infrared tube is an infrared-type infrared tube, and includes a transmitting tube and a receiving tube, wherein the light emitting end is disposed on the transmitting tube, and the light receiving The end is disposed on the receiving tube, and the light shielding member is disposed to be movable up and down between the transmitting tube and the receiving tube.