CN220774189U - Sounding key switch and keyboard - Google Patents

Abstract

The present disclosure relates to input devices, and particularly to a key switch and a mechanical keyboard capable of sounding. The key switch comprises a shell and a pressing handle capable of moving up and down relative to the shell, an elastic element is further arranged in the shell, a driving block with a first guide inclined plane is arranged on the pressing handle, the driving block moves downwards along with the pressing handle and can deform the elastic element, and the elastic element slides away from the first guide inclined plane of the driving block and can strike the shell. The keyboard comprises a circuit board, at least one keycap and at least one key switch using the technical scheme, wherein the key switch is electrically connected to the circuit board, and the keycap is connected to the key switch. Compared with the prior art, the utility model integrates the pressing function of the driving block and the guiding horizontal displacement function of the guiding inclined plane, thereby avoiding the waste of space and having the characteristic of difficult abrasion.

Description

Sounding key switch and keyboard

Technical Field

The present disclosure relates to input devices, and particularly to a key switch and a mechanical keyboard capable of sounding.

Background

Mechanical keyboards are a type of keyboard that has become increasingly popular in recent years. Structurally, each key of a mechanical keyboard has a separate switch to control the closing, which is also referred to as a "shaft". Whether the switch shaft can make a sound when pressing is a hot spot in the current market, and how to reasonably design a sound production structure is a problem to be solved because the switch belongs to a relatively precise element.

In order to overcome the problem, the technical scheme proposed by the Chinese patent No. 20161037804. X is that a pressing block is arranged on a pressing component, meanwhile, a guide inclined plane and a torsion spring are also arranged on a base, when the pressing component is pressed, the pressing block pushes the torsion spring to slide on the guide inclined plane, and after the pressing component is separated from the base, the pressing block knocks the base to make a sound.

Although the prior art achieves the purpose of sounding the switch shaft, the defects are obvious: firstly, besides the pressing block, a guide inclined plane is specially arranged on the base to complete the sounding function, so that the structure is complex, and the switch is severely extruded to occupy a narrow internal space of the switch; secondly, the contact surface of the pressing block and the guide inclined surface of the base are in friction relation with the torsion spring, and the long-term frequent use can cause larger abrasion; finally, a structure for resetting the knocking end of the torsion spring is not designed, and the condition that the swing amplitude of the knocking end is too large to reset easily occurs.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide the key switch which not only can sound, but also has a simple sound production structure and is not easy to wear.

Another technical problem to be solved by the present utility model is to provide a keyboard using the above-mentioned key switch.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a but audible key switch, including casing and setting up in this casing and can be relative this casing up-and-down motion press the handle, still be equipped with an elastic element in the casing, press to be equipped with one on the handle and have a drive piece of first guide inclined plane, this drive piece follows press handle downward movement and can make elastic element takes place deformation, this elastic element slides the back of first guide inclined plane of drive piece can strike the casing.

After the structure is adopted, the guide inclined surface on the driving block enables the driving block to displace in the horizontal direction while pressing down the elastic element, and the elastic element can generate a knocking sound when reset. Compared with the prior art, the utility model integrates the pressing function of the driving block and the horizontal displacement function of the guiding elastic element of the guiding inclined plane, reduces the parts of the sounding structure and avoids the waste of the space in the switch. In addition, the friction-participating components are reduced, so that the friction-participating components have the effect of being difficult to abrade.

Specifically, the shell comprises a base and an upper cover arranged on the base, the elastic element comprises a fixed end arranged on the base and a knocking end capable of being matched with the driving block, and the upper cover is further provided with an abutting block matched with the knocking end. When the driving block is pressed down, the knocking end is driven to deform, and after the knocking end is separated from the first guide inclined plane, the knocking end rebounds to knock the abutting block to make a sound, and the driving block is restored to the initial state.

As an improvement of the technical scheme, the elastic element is a torsion spring, the knocking end is of a U-shaped structure, the knocking end comprises a body part and a bending part formed after the body part is bent and extended, and the bending part is in a parallel relation with the body part in the vertical direction. The knocking end is of a U-shaped structure in the vertical direction, so that the driving block is respectively contacted with the body part and the bending part of the knocking end when being pressed down and reset, namely, the body part and the bending part are only rubbed with the abutting block once in the whole reciprocating process, more importantly, the U-shaped structure in the vertical direction can increase the weight of the knocking end to improve the knocking effect, and meanwhile, the swinging amplitude in the horizontal direction can be reduced by increasing the weight or the area of the U-shaped structure in the horizontal direction or other structures in the horizontal direction, so that the reset is easier to realize.

Further improved, the driving block is obliquely arranged on the pressing handle, the first guide inclined surface is formed on the lower surface of the driving block and can be in contact with the body part of the knocking end, and the second guide inclined surface which can be in contact with the bending part is further arranged on the upper surface of the driving block. The first guide inclined plane and the second guide inclined plane are respectively contacted with the body part and the bending part, so that the torsion spring is guided to complete the knocking sounding function and realize the avoiding function when the driving block resets.

Specifically, the driving block is approximately half-heart-shaped, the first guide inclined plane is in a plane shape, and the second guide inclined plane is in a cambered surface shape. The first guide inclined plane adopts a planar design, so that the friction force between the driving block and the knocking end is linear when the driving block is pressed down, and the pressing hand feeling is improved; the second guide inclined plane adopts the cambered surface design to help the driving block to be separated from the knocking end rapidly, so that the resetting efficiency is improved.

As a further improvement of the foregoing technical solution, the abutment block is disposed at the bottom of the upper cover, and the abutment block has a receiving groove capable of receiving the abutment portion of the striking end. The design of the accommodating groove can ensure that the knocking end can accurately return to the preset initial position after knocking is finished.

Further improved, the lower surface of the abutting block is in an inverted V shape, and the accommodating groove is positioned at the turning position of the V shape. The V-shaped abutting block is convenient to produce, the turning position can be skillfully utilized to design into the accommodating groove, the knocking ends can be guided to return to the accommodating groove by utilizing slopes formed on two sides, and the resetting effectiveness is improved.

As a further improvement of the foregoing technical solution, the pressing handle is provided with an elastic arm, and the driving block is disposed on a side surface of the elastic arm. The design of the elastic arm has certain self-adaptability, and can realize certain fine adjustment effect on the contact part of the driving block and the torsion spring, so that the damage in special situations is avoided.

The elastic arm is L-shaped and is formed by extending outwards from the lower part of the pressing handle.

The keyboard further comprises at least one key switch using the technical scheme, wherein the key switch is electrically connected to the circuit board, and the key cap is connected to the key switch.

The features of the present utility model will be more readily understood and appreciated by reference to the following drawings and description of the embodiments.

Drawings

FIG. 1 is a schematic diagram showing an exploded structure of a key switch according to a preferred embodiment of the present utility model;

FIG. 2 is a schematic view of the structure of the upper cover assembly of FIG. 1;

FIG. 3 is a schematic view of a portion of the assembly of FIG. 1;

FIG. 4 is a schematic view of the construction of the push handle assembly of FIG. 1;

FIG. 5 is a schematic view of the torsion spring of FIG. 1;

FIG. 6 is a schematic view of the internal structure of the key switch in the initial position according to the present utility model;

FIG. 7 is a schematic view of the structure of the push handle of FIG. 6 in a first state;

FIG. 8 is a schematic view showing a second state of the structure of the push button of FIG. 6;

FIG. 9 is a partial schematic view of the torsion spring of FIG. 6 in a disengaged state from the drive block;

FIG. 10 is a schematic view of the structure of the push handle of FIG. 6 in a first state when reset;

fig. 11 is a schematic view showing a second state structure when the push handle in fig. 6 is reset.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved more apparent, the present utility model is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

All of the drawings disclose only a portion closely related to the present utility model, not the entire structure of the key switch. The utility model encompasses embodiments in which two parts, devices or structures are integrally formed without affecting the ability to achieve the objectives of the utility model, unless specifically indicated otherwise, when the terms "provided with," "disposed," "connected," "mounted," "connected," and "secured" are used in the claims and specification to describe a relationship between two parts, devices or structures; when the utility model is used with "a" or "an" preceding a feature, it is intended that the feature system only appear for the first time, and not that the meaning of one, etc. of the words.

A preferred embodiment of the key switch provided by the present utility model is shown in fig. 1-11. A key switch capable of sounding is provided, which comprises a shell 1 and a pressing handle 2 which is arranged in the shell 1 and can move up and down relative to the shell 1. As shown in fig. 1 and 3, a return spring 3 is disposed in the housing 1, the pressing handle 2 is sleeved on the return spring 3, the pressing handle 2 moves downwards after pressing, and the pressing handle 2 returns upwards under the action of the return spring 3 after pressing, so as to realize up-and-down movement relative to the housing 1.

Referring again to fig. 1 and 3, a further elastic element 4 is provided in the housing 1, and a drive block 5 having a first guide ramp 51 is provided on the push handle 2. The term "guiding inclined plane" refers to an inclined plane having guiding function, and the inclined plane may be directly arranged relative to the horizontal direction, or may be realized by turning the driving block 5 to change the horizontal plane into the inclined plane. When the pressing handle 2 is pressed down, the driving block 5 moves downwards along with the pressing handle 2 and can contact the elastic element 4, and the elastic element 4 is deformed in the vertical direction and the horizontal direction at the same time; under the guidance of the first guiding inclined surface 51, as the elastic element 4 is continuously deformed, after the elastic element 4 slides away from the first guiding inclined surface 51 of the driving block 5, it will be restored by its own elastic force and can strike the housing 1 upwards, and make a striking sound. By adopting the structure, the guide inclined surface on the driving block 5 enables the driving block 5 to displace horizontally while pressing down the elastic element 4, and the elastic element 4 can generate a knocking sound when reset. Compared with the prior art, the utility model integrates the pressing function of the driving block 5 and the horizontal displacement function of the guiding elastic element 4 of the guiding inclined plane, reduces the parts of the sounding structure and avoids the waste of the space in the switch. In addition, the friction-participating components are reduced, so that the friction-participating components have the effect of being difficult to abrade.

As shown in fig. 1-3, in this embodiment, the housing 1 includes a base 11 and an upper cover 12 disposed on the base 11, and the base 11 and the upper cover 12 may be connected by a clamping connection, a mortise and tenon connection, or the like. Referring to fig. 3, the elastic element 4 includes a fixed end 41 mounted on the base 11 and a striking end 42 capable of being engaged with the driving block 5. The striking end 42 can be depressed by the driving block 5 and avoided when the driving block 5 is reset. As shown in fig. 2, the upper cover 12 is further provided with an abutment block 6 matched with the striking end 42. In the initial state, the knocking end 42 abuts against the lower surface of the abutting block 6, when the driving block 5 is pressed down, the knocking end 42 is driven to deform, the knocking end 42 rebounds to knock the abutting block 6 after being separated from the first guide inclined plane 51, and the initial state is restored.

Referring to fig. 5, the elastic element 4 is preferably a torsion spring, the striking end 42 has a substantially U-shaped structure, the striking end 42 includes a body portion 43 and a bending portion 44 formed by bending and extending the body portion 43, and the bending portion 44 is in a parallel relationship with the body portion 43 in a vertical direction. The body portion 43 is a portion of the torsion spring extending from the fixed end 41; the knocking end 42 is in a U-shaped structure in the vertical direction, so that the driving block 5 is respectively contacted with the body part 43 and the bending part 44 of the knocking end 42 when being pressed down and reset, namely, the body part 43 and the bending part 44 are only rubbed with the abutting block 6 once in the whole reciprocating process, more importantly, the U-shaped structure in the vertical direction can increase the weight of the knocking end 42 to improve the knocking effect, and meanwhile, the swinging amplitude in the horizontal direction can be reduced by increasing the weight or the area in the horizontal direction relative to the U-shaped structure in the horizontal direction or other structures, so that the reset is easier to realize.

As shown in fig. 4, the driving block 5 is obliquely disposed to the pressing handle 2, and the first guide slope 51 is formed on the lower surface of the driving block 5 and can be in contact with the body portion 43 of the striking end 42. It should be appreciated that the first guiding inclined surface 51 may be a part of the lower surface of the driving block 5 or may be the whole of the lower surface. The first guide slope 51 is only in contact with the striking end 42 of the torsion spring and cannot contact the bent portion 44 when the driving block 5 moves downward. The upper surface of the driving block 5 is also provided with a second guiding inclined plane 52 which can be contacted with the bending part 44, and the second guiding inclined plane 52 has the function of guiding the bending part 44 of the torsion spring to finish the avoiding function when the driving block 5 is reset upwards. The first guide inclined surface 51 and the second guide inclined surface 52 are respectively contacted with the body part 43 and the bending part 44, so that the torsion spring is guided to complete the knocking sounding function and realize the avoiding function when the driving block 5 is reset. Specifically, the driving block 5 is substantially semi-heart-shaped (refer to fig. 1 and 3), the first guiding inclined plane 51 is planar, and the first guiding inclined plane 51 of planar design is inclined with respect to the horizontal direction by the driving block 5 being inclined; the second guiding inclined plane 52 is in a cambered surface shape, that is, the inclined plane is not linear as the first guiding inclined plane 51, and the inclination angle is correspondingly changed. The first guiding inclined plane 51 adopts a planar design, so that the friction force between the driving block 5 and the knocking end 42 is linear when the driving block is pressed down, and the pressing hand feeling is improved; the second guiding inclined surface 52 adopts an arc surface design, which is helpful for the driving block 5 to be quickly separated from the knocking end 42, and the resetting efficiency is improved.

Referring to fig. 2, as a preferred solution, the abutment block 6 is disposed at the bottom of the upper cover 12, and may be specifically disposed in a manner of the prior art, and in this embodiment, an integral molding manner is adopted. The abutting block 6 is provided with a containing groove 61 which can contain the abutting part of the knocking end 42, and the design of the containing groove 61 can ensure that the knocking end 42 can accurately return to the preset initial position after knocking is completed. Specifically, the lower surface of the abutment block 6 is inverted V-shaped (the upper cover 12 in fig. 2 is inverted so as to be V-shaped), and the receiving groove 61 is located at a turning position of the V-shape. The V-shaped abutting block 6 is convenient to produce, the turning position can be skillfully utilized to design into the accommodating groove 61, the knocking ends 42 can be guided to return to the accommodating groove 61 by utilizing slopes formed on two sides, and the resetting effectiveness is improved.

As shown in fig. 1 and 4, as a further improvement, the push handle 2 is provided with an elastic arm 21, the driving block 5 is disposed on a side surface of the elastic arm 21, specifically, the elastic arm 21 is L-shaped, and the elastic arm 21 extends outward from the lower end surface of the push handle 2 at an acute angle, and then extends in a direction substantially parallel to the end surface to form a substantially inverted L-shape. The design of the elastic arm 21 has certain self-adaptability, namely, a certain degree of swing can be realized through elasticity, a certain fine adjustment effect can be realized on the contact part of the driving block 5 and the torsion spring, excessive rigidity is avoided, and unnecessary damage occurs under special conditions.

Fig. 6-11 show the sounding process of the utility model sounding structure: in the initial state shown in fig. 6, the striking portion of the torsion spring is located in the accommodation groove 61 of the abutment block 6; after the user presses down the pressing handle 2, the first guide inclined surface 51 on the driving block 5 presses down the knocking end 42 of the torsion spring, that is, the first guide inclined surface 51 contacts with the body part 43 of the knocking end 42 and deforms downwards in the vertical direction, see fig. 7 in particular; continuing to press down the pressing handle 2, as shown in fig. 8, the driving block 5 further presses down the knocking end 42, and simultaneously, guides the knocking end 42 to deform horizontally through the first guiding inclined surface 51; referring to fig. 9 (with the upper cover 12 removed), the pressing handle 2 is further lowered, the striking end 42 of the torsion spring slides out from the right end of the first guide slope 51 and is quickly reset upward, and at the same time, the striking abutment makes a sound; after the user stops pressing and removes the finger, the pressing handle 2 will also reset upwards under the action of the reset spring 3, as shown in fig. 10, when the driving block 5 contacts the striking end 42 of the torsion spring again, the second guiding inclined surface 52 contacts the bending part 44 of the striking end 42, and guides the striking end 42 to move horizontally again until sliding out from the left end of the second guiding inclined surface 52 (refer to fig. 11); after sliding out, the push handle 2 completes reset, and the torsion spring is reset again to restore to the initial state shown in fig. 6. The sounding function in the pressing process can be realized by repeating the steps.

The utility model also provides a preferred embodiment of the keyboard. The keyboard (not shown in the figure) comprises a circuit board and at least one keycap, and the keyboard further comprises at least one key switch using the technical scheme, wherein the key switch is electrically connected to the circuit board, and the keycap is detachably connected to the key switch. It should be understood that the keyboard may be a key switch in which all keys are disclosed in the present utility model, or may be a key switch in which only some keys are used.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. The utility model provides a but audible key switch, includes casing and sets up in this casing and can be relative this casing up-and-down motion's press handle, its characterized in that: the shell is internally provided with an elastic element, the push handle is provided with a driving block with a first guide inclined plane, the driving block moves downwards along with the push handle and can deform the elastic element, and the elastic element slides away from the first guide inclined plane of the driving block and can knock the shell.

2. The key switch of claim 1, wherein: the shell comprises a base and an upper cover arranged on the base, the elastic element comprises a fixed end arranged on the base and a knocking end capable of being matched with the driving block, and the upper cover is also provided with an abutting block matched with the knocking end.

3. The key switch of claim 2, wherein: the elastic element is a torsion spring, the knocking end is of a U-shaped structure, the knocking end comprises a body part and a bending part formed after the body part is bent and extended, and the bending part and the body part are in a parallel relation in the vertical direction.

4. A key switch according to claim 3, wherein: the driving block is obliquely arranged on the pressing handle, the first guide inclined surface is formed on the lower surface of the driving block and can be contacted with the body part of the knocking end, and the second guide inclined surface which can be contacted with the bending part is further arranged on the upper surface of the driving block.

5. The key switch of claim 4, wherein: the driving block is approximately half-heart-shaped, the first guide inclined plane is in a plane shape, and the second guide inclined plane is in a cambered surface shape.

6. The key switch according to any one of claims 2-5, wherein: the abutting block is arranged at the bottom of the upper cover and is provided with a containing groove which can contain the abutting part of the knocking end.

7. The key switch of claim 6, wherein: the lower surface of the abutting block is in an inverted V shape, and the accommodating groove is positioned at the turning position of the V shape.

8. The key switch according to any one of claims 1-5, wherein: the push handle is provided with an elastic arm, and the driving block is arranged on the side face of the elastic arm.

9. The key switch of claim 8, wherein: the elastic arm is L-shaped and is formed by extending outwards from the lower part of the pressing handle.

10. A keyboard comprising a circuit board and at least one keycap, characterized in that: the keyboard further comprising at least one key switch according to any one of claims 1-9, said key switch being electrically connected to said circuit board, said key cap being connected to said key switch.