CN212875767U - Key switch, mouse and mechanical keyboard - Google Patents
Key switch, mouse and mechanical keyboard Download PDFInfo
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- CN212875767U CN212875767U CN202021791864.7U CN202021791864U CN212875767U CN 212875767 U CN212875767 U CN 212875767U CN 202021791864 U CN202021791864 U CN 202021791864U CN 212875767 U CN212875767 U CN 212875767U
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Abstract
The utility model discloses a key switch, including switch body, hall element and magnetic element, the switch body is including the up-and-down motion part, hall element sets up on the PCB board surface, and hall element's magnetic induction direction is the vertical direction, magnetic element is located hall element side top and sets up on the up-and-down motion part, and magnetic element NS utmost point direction is the vertical direction. The utility model discloses a key switch space utilization is higher, and the interference killing feature is stronger.
Description
Technical Field
The utility model relates to a hall switch field, in particular to key switch and mouse, mechanical keyboard.
Background
One of the existing mechanical keyboards is to use a hall element to replace the original optical crystal device, and the hall element has the characteristics of no contact, low power consumption, long service life, high response frequency and the like, but the keyboard has the following defects:
1) due to the fact that the difference of the magnetic field intensity of the magnets and the difference of the Hall elements on the magnetic field induction intensity are added, namely the conduction points of the key switches are inconsistent, the triggering points are inconsistent, the whole moving distance is assumed to be 4mm, for the same key switch, the key switch is likely to be conducted at the position of 1mm in a pressing mode, the key switch is likely to be conducted at the position of 2mm in a pressing mode in a triggering mode again, the conduction points of the key switches are not accurate points but fuzzy points, the Hall elements at a certain position are enabled to be switched between on and off continuously, and therefore the key switches are enabled to send codes continuously.
2) Because the keyboard generally has 100 key switches, namely 100 conducting points, the Hall element has no way to control the consistency of the strength change, so that the structure input action and the function input can not be consistent all the time, and the hand feeling and the experience feeling of a user are greatly reduced.
3) The interference killing feature is not strong, as long as external magnetic field is powerful enough, to certain key switch, as long as be close to this key switch and all can trigger this key switch and switch on, to whole keyboard, when external magnet is close to, have most key switch to be triggered by unknown ground, bring the unknown loss for the user.
In addition, a mechanical keyboard using hall switches is proposed to solve the above problems to some extent, for example, in patent No. 201920666264.9 and the technical proposal of "unipolar magnetic induction key switch and mechanical keyboard", a unipolar hall element is disposed on a PCB, the magnetic induction direction of the unipolar hall element is a vertical direction, a magnetic element is disposed on a handle, and the NS pole direction of the magnetic element is a horizontal direction. This solution solves the above problem to some extent, but still has certain drawbacks:
(1) the NS pole direction of the magnetic element arranged on the press handle is the horizontal direction, which causes that the occupied space in the horizontal direction is larger and often exceeds the cross section of the press handle, and in order to ensure that the press handle can move freely up and down, the space which exceeds the cross section of the press handle right above the magnetic element can only be wasted, and the space utilization rate is low;
(2) in order to improve the anti-interference capability of the mechanical keyboard, it is considered to perform electromagnetic shielding on the components of a single key switch, but the mechanical keyboard has numerous keys, the electromagnetic shielding process is complex and the cost is greatly increased, so the method of electromagnetic shielding is generally abandoned, and the problems that the length of the magnetic element is required to be increased, the length of the magnetic element with the NS pole direction being the horizontal direction is increased, the problem (1) is further aggravated and the utilization rate of the limited space is further reduced are certainly solved by reducing the sensitivity of the hall switch and increasing the electromagnetic strength of the magnetic element.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's shortcoming and not enough, provide a key switch.
Another object of the present invention is to provide a mouse using the above key switch.
Another object of the present invention is to provide a keyboard using the above key switch.
The purpose of the utility model is realized through the following technical scheme:
the utility model provides a key switch, includes switch body, hall element and magnetic element, the switch body is including but up-and-down motion part, hall element sets up on PCB board surface (upper surface or lower surface), and hall element's magnetic induction direction is the vertical direction, magnetic element is located hall element side top and sets up on but up-and-down motion part, and the magnetic element NS utmost point direction is the vertical direction.
The up-and-down movable component comprises a press handle and a keycap arranged above the press handle; the magnetic element is arranged on the side edge of the press handle;
the switch body further comprises an upper shell and a lower shell, the upper shell is fixedly connected with the lower shell, the pressing handle is arranged on the upper shell in a vertically movable mode, an accommodating space is formed between the upper shell and the lower shell, a first elastic element is arranged in the accommodating space, and the first elastic element is located below the pressing handle; the first elastic element is a nonmagnetic elastic element or a antimagnetic elastic element;
when the pressing handle is static, the magnetic element is positioned above one side of the Hall element, when the pressing handle moves downwards, the magnetic element moves to the upper surface of the PCB or passes through the opening on the PCB to move downwards to the lower side of one side of the Hall element along with the pressing handle, so that the Hall element is closed or opened, and the magnetic element is always vertical to the horizontal plane of the Hall element in the process of moving up and down along with the pressing handle.
The up-and-down movable component comprises a press handle and a keycap arranged above the press handle; the magnetic element is fixedly arranged in the center of the press handle;
the switch body further comprises an upper shell and a lower shell, the upper shell is fixedly connected with the lower shell, the pressing handle is arranged on the upper shell in a vertically movable mode, an accommodating space is formed between the upper shell and the lower shell, a first elastic element is arranged in the accommodating space, and the first elastic element is located below the pressing handle; the first elastic element is a nonmagnetic elastic element or a antimagnetic elastic element;
when the pressing handle is static, the magnetic element is positioned above the side of the Hall element, when the pressing handle moves downwards, the magnetic element moves to the upper surface of the PCB or passes through the opening on the PCB to move downwards to the lower part of one side of the Hall element along with the pressing handle, so that the Hall element is closed or opened, and the magnetic element is always vertical to the horizontal plane of the Hall element in the process of moving up and down along with the pressing handle.
The cylinder is located the centre bore position in the spring, saves space more like this, and product structure is compacter.
The magnetic element is a magnetic ring which is sleeved on the center of the press handle.
The first elastic element is a spring.
The accommodating space is also internally provided with a second elastic element, the pressing handle is provided with a driving block, and when the pressing handle is pressed down or bounced, the driving block acts on the second elastic element to change the shape of the second elastic element; the second elastic element is a nonmagnetic elastic element or a antimagnetic elastic element.
The second elastic element is a torsion spring structure or a spring plate structure.
The up-and-down movable component comprises a press handle and a keycap arranged above the press handle; the magnetic element is fixedly arranged in the keycap or below the side of the keycap;
the switch body further comprises an upper shell and a lower shell, the upper shell is fixedly connected with the lower shell, the pressing handle is arranged on the upper shell in a vertically movable mode, an accommodating space is formed between the upper shell and the lower shell, a third elastic element is arranged in the accommodating space, and the third elastic element is located below the pressing handle; the third elastic element is a nonmagnetic elastic element or a antimagnetic elastic element;
the third elastic element is a spring or a scissor angle;
when the press handle is static, the magnetic element is positioned above the side of the Hall element, when the keycap moves downwards, the magnetic element moves to the upper surface of the PCB along with the keycap to close or open the Hall element, and the magnetic element is always vertical to the horizontal plane of the Hall element in the process of moving up and down along with the keycap.
The Hall element is a unipolar Hall element or a linear Hall element.
When a linear Hall element is adopted, the change of the switch along with the pressing stroke is the output of a linear voltage.
The magnetic element is a cuboid or a cylinder.
The utility model discloses a further purpose can reach through taking following technical scheme:
a mouse adopts the key switch.
The utility model discloses a further purpose can reach through taking following technical scheme:
the utility model provides a mechanical keyboard, includes PCB board and foretell key switch, be equipped with the trompil on the PCB board, the trompil is located and presses under the handle, the switch body is installed on PCB board or plastic board or iron plate.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
1. the utility model discloses set up Hall element on the PCB board, and set up magnetic element at handle or key cap, when the up-and-down motion part is static, Hall element keeps a stable level state when magnetic element is in home position, when the up-and-down motion part pushes down and makes magnetic element reach near Hall element, Hall element keeps another stable level state, namely key switch has accurate switch-on point, thereby make a plurality of key switch of mechanical keyboard all possess fabulous uniformity, and the interference killing feature strengthens greatly, under extreme strong magnetic interference, normally closed key switch rather than sending out the sign indicating number, also can not send wrong sign indicating number, normally open key switch is when being applied to mechanical keyboard, different button numbers can share a procedure; in addition, make full use of the trompil on the PCB board, can regard as ultra-thin formula key switch to use to adopt hall element, the consumption is lower, can make wireless keyboard or bluetooth keyboard.
2. The utility model discloses the switch is an extremely transient time variable in the twinkling of an eye when the high-low level takes place the conversion, is a steady volume again after the change, that is to say, unipolar hall element is the extremely outstanding switch of a performance, and the change is in the twinkling of an eye below several milliseconds and the switch-on point is unanimous, and level after the change can maintain more than tens of milliseconds again at least, has stopped the double click nature of the two-time sign indicating number of once-off of switch completely, has greatly improved the stability and the reliability of switch.
When the linear Hall element is adopted, the switch is output as a linear voltage along with the change of the pressing stroke, and the linear Hall element is well matched with a mechanical structure.
3. The key switch (the upper shell, the lower shell and the press handle) and the Hall switch are arranged separately, namely, the machinery and the electronics are arranged separately, thus being beneficial to the disassembly of the PCB and being convenient for maintenance; because machinery and electron are the separation setting, so key switch can paste and adorn at PCB board or plastic board or iron plate upper surface, also can install at the lower surface, not only simple to operate, be convenient for maintain moreover.
Drawings
Fig. 1 is a schematic structural view of a push switch according to a first embodiment of the present invention, in which a magnetic element is disposed at a side of a push handle; the magnetic element is above the induction surface boundary line.
Fig. 2 is a schematic structural view of the push switch according to the first embodiment of the present invention, in which the magnetic element is disposed at the side of the push handle; the magnetic element is below the induction surface boundary.
Fig. 3 is an exploded view of the push switch according to the first embodiment of the present invention, and the magnetic element is disposed at the side of the push handle.
Fig. 4 is a schematic diagram of the magnetic element according to the first embodiment of the present invention, which is above the boundary line of the sensing surface, wherein the upper portion of the magnetic element is S-pole, the lower portion of the magnetic element is N-pole, and the hall element is S-pole unipolar hall element.
Fig. 5 is a schematic diagram of the operation of the magnetic element according to the first embodiment of the present invention below the boundary of the sensing surface, in which the upper portion of the magnetic element is an S-pole, the lower portion of the magnetic element is an N-pole, and the hall element is an S-pole unipolar hall element.
Fig. 6 is a schematic structural view of a push switch according to the second embodiment of the present invention, in which the magnetic element is disposed at the center of the push handle.
FIG. 7 is a schematic structural diagram of a key cap according to a third embodiment, in which the magnetic element is fixedly disposed in a groove inside the key cap in a transverse or longitudinal direction.
Fig. 8 is a schematic structural diagram of the key cap according to the third embodiment, in which the magnetic element is fixedly disposed below the key cap.
Wherein the reference numerals have the following meanings:
1-lower shell, 2-upper shell, 3-press handle, 4-reset spring, 5-magnetic element, 6-iron plate support, 7-PCB, 8-torsion spring, 9-keycap, 10-Hall element, 11-keycap inner groove.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.
Example one
As shown in fig. 1, 2 and 3, the key switch comprises a switch body, a hall element and a magnetic element, wherein the switch body comprises a component capable of moving up and down, the hall element is arranged on the surface of a PCB (printed circuit board), the magnetic induction direction of the hall element is the vertical direction, the magnetic element is positioned above the side of the hall element and is arranged on the component capable of moving up and down, and the NS pole direction of the magnetic element is the vertical direction.
The up-and-down movable component comprises a press handle and a keycap arranged above the press handle; the magnetic element is arranged on the side edge of the press handle;
the switch body further comprises an upper shell and a lower shell, the upper shell is fixedly connected with the lower shell, the pressing handle is arranged on the upper shell in a vertically movable mode, an accommodating space is formed between the upper shell and the lower shell, a first elastic element is arranged in the accommodating space, and the first elastic element is located below the pressing handle; the first elastic element is a nonmagnetic elastic element or a antimagnetic elastic element;
when the pressing handle is static, the magnetic element is positioned above one side of the Hall element, when the pressing handle moves downwards, the magnetic element moves to the upper surface of the PCB or passes through the opening on the PCB to move downwards to the lower side of one side of the Hall element along with the pressing handle, so that the Hall element is closed or opened, and the magnetic element is always vertical to the horizontal plane of the Hall element in the process of moving up and down along with the pressing handle.
The NS pole direction of the magnetic element is vertical, the upper part of the magnetic element is an S pole, the lower part of the magnetic element is an N pole, and the Hall element is an S-polarity unipolar Hall element.
As shown in fig. 1 and 4, when the bottom of the magnetic element (i.e., the N-pole surface) is located above the boundary line of the sensing surface, the S-polarity unipolar hall element does not operate, and outputs a high level.
As shown in fig. 2 and 5, when the bottom of the magnetic element (i.e., the N-pole surface) is located below the boundary line of the sensing surface, the S-polarity unipolar hall element operates to output a low level. When the press handle provided with the magnetic element runs to the bottom, the top part (namely S pole surface) of the magnetic element is higher than the boundary line of the sensing surface.
If the upper part of the magnetic element is an N pole and the lower part is an S pole, the situation is similar when the Hall element is an N-polarity unipolar Hall element, and the description is omitted.
Example two
The same as in the first embodiment, except that the following description is different.
As shown in fig. 6, the magnetic element is fixedly arranged at the center of the press handle. At the moment, the limited space can be further saved, and the anti-interference capability of the key switch is further enhanced.
EXAMPLE III
The same as in the first embodiment, except that the following description is different.
The up-and-down movable component comprises a press handle and a keycap arranged above the press handle; the magnetic element is fixedly arranged in the keycap or below the side of the keycap;
the switch body further comprises an upper shell and a lower shell, the upper shell is fixedly connected with the lower shell, the pressing handle is arranged on the upper shell in a vertically movable mode, an accommodating space is formed between the upper shell and the lower shell, a third elastic element is arranged in the accommodating space, and the third elastic element is located below the pressing handle; the third elastic element is a nonmagnetic elastic element or a antimagnetic elastic element;
the third elastic element is a spring or a scissor angle;
when the press handle is static, the magnetic element is positioned above the side of the Hall element, when the keycap moves downwards, the magnetic element moves to the upper surface of the PCB along with the keycap to close or open the Hall element, and the magnetic element is always vertical to the horizontal plane of the Hall element in the process of moving up and down along with the keycap.
As shown in fig. 7, the magnetic element is fixedly arranged in a groove in the keycap in the transverse direction or the longitudinal direction. In this way, the space can be further saved, and the volume of the key switch can be made small.
As shown in fig. 8, the magnetic element is fixedly disposed below the key cap side.
In the first, second, and third embodiments, the magnetic element is a rectangular parallelepiped or a cylinder, but is not limited thereto, and other magnetic elements may be used.
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.
Claims (12)
1. A key switch, characterized by: including switch body, hall element and magnetic element, the switch body is including but up-and-down motion part, hall element sets up on the PCB board surface, and hall element's magnetic induction direction is the vertical direction, magnetic element is located hall element side top and sets up on but up-and-down motion part, and magnetic element NS utmost point direction is the vertical direction.
2. The key switch of claim 1, wherein: the up-and-down movable component comprises a press handle and a keycap arranged above the press handle; the magnetic element is arranged on the side edge of the press handle;
the switch body further comprises an upper shell and a lower shell, the upper shell is fixedly connected with the lower shell, the pressing handle is arranged on the upper shell in a vertically movable mode, an accommodating space is formed between the upper shell and the lower shell, a first elastic element is arranged in the accommodating space, and the first elastic element is located below the pressing handle; the first elastic element is a nonmagnetic elastic element or a antimagnetic elastic element;
when the pressing handle is static, the magnetic element is positioned above one side of the Hall element, when the pressing handle moves downwards, the magnetic element moves to the upper surface of the PCB or passes through the opening on the PCB to move downwards to the lower side of one side of the Hall element along with the pressing handle, so that the Hall element is closed or opened, and the magnetic element is always vertical to the horizontal plane of the Hall element in the process of moving up and down along with the pressing handle.
3. The key switch of claim 1, wherein: the up-and-down movable component comprises a press handle and a keycap arranged above the press handle; the magnetic element is fixedly arranged in the center of the press handle;
the switch body further comprises an upper shell and a lower shell, the upper shell is fixedly connected with the lower shell, the pressing handle is arranged on the upper shell in a vertically movable mode, an accommodating space is formed between the upper shell and the lower shell, a first elastic element is arranged in the accommodating space, and the first elastic element is located below the pressing handle; the first elastic element is a nonmagnetic elastic element or a antimagnetic elastic element;
when the pressing handle is static, the magnetic element is positioned above the side of the Hall element, when the pressing handle moves downwards, the magnetic element moves to the upper surface of the PCB or passes through the opening on the PCB to move downwards to the lower part of one side of the Hall element along with the pressing handle, so that the Hall element is closed or opened, and the magnetic element is always vertical to the horizontal plane of the Hall element in the process of moving up and down along with the pressing handle.
4. The key switch of claim 3, wherein: the magnetic element is a magnetic ring which is sleeved on the center of the press handle.
5. The key switch according to claim 2 or 3, wherein: the first elastic element is a spring.
6. The key switch according to claim 2 or 3, wherein: the accommodating space is also internally provided with a second elastic element, the pressing handle is provided with a driving block, and when the pressing handle is pressed down or bounced, the driving block acts on the second elastic element to change the shape of the second elastic element; the second elastic element is a nonmagnetic elastic element or a antimagnetic elastic element.
7. The key switch of claim 6, wherein: the second elastic element is a torsion spring structure or a spring plate structure.
8. The key switch of claim 1, wherein: the up-and-down movable component comprises a press handle and a keycap arranged above the press handle; the magnetic element is fixedly arranged in the keycap;
the switch body further comprises an upper shell and a lower shell, the upper shell is fixedly connected with the lower shell, the pressing handle is arranged on the upper shell in a vertically movable mode, an accommodating space is formed between the upper shell and the lower shell, a third elastic element is arranged in the accommodating space, and the third elastic element is located below the pressing handle; the third elastic element is a nonmagnetic elastic element or a antimagnetic elastic element;
the third elastic element is a spring or a scissor angle;
when the press handle is static, the magnetic element is positioned above the side of the Hall element, when the keycap moves downwards, the magnetic element moves to the upper surface of the PCB along with the keycap to close or open the Hall element, and the magnetic element is always vertical to the horizontal plane of the Hall element in the process of moving up and down along with the keycap.
9. The key switch of claim 1, wherein: the Hall element is a unipolar Hall element or a linear Hall element.
10. The key switch of claim 1, wherein: the magnetic element is a cuboid or a cylinder.
11. A mouse, characterized by: use of a key switch according to any of claims 1 to 10.
12. A mechanical keyboard, comprising: the push-button switch comprises a PCB and the push-button switch of any one of claims 1 to 11, wherein the PCB is provided with an opening which is positioned right below a press handle, and the switch body is arranged on the PCB or a plastic board or an iron board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021791864.7U CN212875767U (en) | 2020-08-24 | 2020-08-24 | Key switch, mouse and mechanical keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021791864.7U CN212875767U (en) | 2020-08-24 | 2020-08-24 | Key switch, mouse and mechanical keyboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212875767U true CN212875767U (en) | 2021-04-02 |
Family
ID=75190153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021791864.7U Active CN212875767U (en) | 2020-08-24 | 2020-08-24 | Key switch, mouse and mechanical keyboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212875767U (en) |
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2020
- 2020-08-24 CN CN202021791864.7U patent/CN212875767U/en active Active
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