CN216084676U

CN216084676U - High-performance key switch

Info

Publication number: CN216084676U
Application number: CN202122748370.1U
Authority: CN
Inventors: 李新超; 马少飞; 姜庆勇
Original assignee: Honyone Electrical Appliance Co ltd
Current assignee: Honyone Electrical Appliance Co ltd
Priority date: 2021-11-09
Filing date: 2021-11-09
Publication date: 2022-03-18
Anticipated expiration: 2031-11-09

Abstract

The utility model relates to the technical field of key switches, in particular to a high-performance key switch which comprises an upper cover and a rear cover, wherein the top of the upper cover is provided with a first sliding hole, the bottom of the upper cover is provided with a second sliding hole which is coaxial with the first sliding hole, the diameter of the first sliding hole is larger than that of the second sliding hole, the inner wall of the bottom of the first sliding hole is provided with a circular hole which is coaxial with the first sliding hole and penetrates through the top of the second sliding hole, a key assembly is arranged in the first sliding hole, the second sliding hole and the circular hole, the inner walls of two sides of the upper cover below the second sliding hole are provided with a first buckle, the outer walls of two sides of the rear cover are provided with a first clamping groove which is matched with the first buckle, a base and a waterproof cap of the high-performance key switch are fixed by adopting a sealed epoxy resin after clamping fit, the upper cover and the rear cover are fixed by adopting the sealed epoxy resin after clamping fit, and the rear cover and a terminal are fixed by adopting the sealed epoxy resin after interference fit, this can improve the waterproof property.

Description

High-performance key switch

Technical Field

The utility model relates to the technical field of key switches, in particular to a high-performance key switch.

Background

The key switch has the advantages of small contact resistance load, accurate operation force error, diversified specifications and the like, and is widely applied to electronic equipment, white household appliances and the like, such as: audio-visual products, digital products, remote controllers, communication products, household appliances, security products, toys, computer products, fitness equipment, medical equipment, currency examining pens, laser pen keys and the like. Because the key switch directly replaces large equipment and high-load buttons under environmental conditions (the elastic force/environmental temperature and humidity condition with the pressure less than 2 times and the electrical performance), such as medical equipment, a television remote controller and the like.

The general key switch has poor waterproof performance, and is easy to get an electric shock in an air humid environment, so that a high-performance key switch is disclosed.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a high performance key switch to solve the above problems.

The technical scheme of the utility model is as follows: a high-performance key switch comprises an upper cover and a rear cover, wherein a first sliding hole is formed in the top of the upper cover, a second sliding hole which is coaxial with the first sliding hole is formed in the bottom of the upper cover, the diameter of the first sliding hole is larger than that of the second sliding hole, a round hole which is coaxial with the first sliding hole is formed in the inner wall of the bottom of the first sliding hole and penetrates through the top of the second sliding hole, a key assembly is installed in the first sliding hole, the second sliding hole and the round hole, a first buckle is arranged on the inner wall of the upper cover on two sides below the second sliding hole, a first clamping groove which is matched with the first buckle is formed in the outer wall of each of two sides of the rear cover, the first clamping groove is matched with the first buckle in a sliding clamping manner, a third sliding hole which is matched with the key assembly is formed in the top of the rear cover, a placing groove is formed in the middle part of the inner wall of the bottom of the third sliding hole, sliding openings are formed in two sides of the inner wall of the bottom of the third sliding hole, terminals are slidably installed on the inner wall of the sliding opening, and the two terminals are located in the inner ends of the rear cover and bent towards one side which are close to each other, the terminal does not contact with the bottom inner wall of the third sliding hole, a reset assembly is arranged between the terminal and the bottom inner wall of the third sliding hole, the upper cover and the rear cover are fixed through the sealing epoxy resin after being in snap fit, and the rear cover and the terminal are fixed through the sealing epoxy resin after being in interference fit.

Preferably, the button subassembly includes button, base and waterproof cap, button slidable mounting is on the inner wall of slide opening one, base slidable mounting is on the inner wall of round hole, waterproof cap's slidable mounting is on the inner wall of slide opening two, joint hole one has been seted up at waterproof cap's top, the bottom joint of base is on the inner wall of joint hole one, joint hole two has been seted up to the bottom of button, the top joint of base is on the inner wall of joint hole two, here need explain sealed epoxy fixes after base and waterproof cap adopt the joint cooperation, improves waterproof nature.

Preferably, be provided with spacing lid and mutual contact between waterproof cap and the terminal, spacing lid is the ring form and coaxial with the back lid, and spacing lid plays limiting displacement.

Preferably, the bottom of the base is provided with a slot, the inner wall of the slot is inserted with a support in a sliding manner, the bottom of the support is forked towards two ends to form a Y shape, the two forked ends of the support are in contact with the inner wall of the placing groove, and the support is mainly used as a bearing point of force.

Preferably, the outer walls of the two sides of the support are both provided with a V-shaped groove, the reset assembly comprises a reset spring, a contact piece and a double-hook spring, the reset spring is positioned between the inner part of the placing groove and the two forked ends of the support, the two ends of the reset spring are respectively contacted with the bottom of the placing groove and the bottom of the support, the contact piece body is a semicircular arc plate, the two ends of the semicircular arc plate are distributed up and down, the semicircular arc plate is positioned at the bottom end and extends to one side of the support to form a plate and is contacted with the inner wall of the V-shaped groove, the arc-shaped inner side wall of the contact piece is provided with a hook hole, the two hook heads of the double-hook spring are respectively hooked on the inner wall of the hook hole, the contact piece is in one-to-one correspondence with the two terminals and is positioned below the bending part of the terminals, the V-shaped groove of the support moves downwards and enables the contact piece to rotate downwards and do the movement away from each other, and the double-hook spring is stretched, the reset spring is compressed, and the external force is removed, and double hook spring and reset spring return to the original state, and the contact piece is changeed upward and is passed through frictional force with the help of the V-arrangement groove and make the support shift up.

Preferably, the periphery wall of upper cover has the nut through threaded connection, the rubber circle has been cup jointed to the periphery wall of upper cover, the rubber circle is located the nut top, and rubber circle, nut cooperation finished product adopt the rotation extrusion to carry out waterproof fixed.

The working principle is as follows: the base and the waterproof cap are fixed by adopting clamping fit and then sealing epoxy resin, the upper cover and the rear cover are fixed by adopting clamping fit and then sealing epoxy resin, and the rear cover and the terminal are fixed by adopting interference fit and then sealing epoxy resin, so that the waterproof performance can be improved; the rubber ring and the nut are matched with a finished product and are subjected to waterproof fixation by adopting rotary extrusion, so that the waterproofness is further improved; when receiving pressure to the button and moving downwards, the button makes waterproof cap move down through the base, waterproof cap makes two terminals move down with the help of spacing lid, and the V-arrangement groove of support moves down and makes the contact piece rotate down and be the motion of keeping away from each other this moment, and the double hook spring is stretched, and reset spring is compressed, removes the external force, and double hook spring and reset spring return the original state, and the contact piece is gone up and is passed through frictional force with the help of the V-arrangement groove and make the support shift up, and the button of being convenient for resets fast like this, improves the performance.

The utility model provides a high-performance key switch by improvement, compared with the prior art, the high-performance key switch has the following improvements and advantages:

one is as follows: according to the utility model, the base and the waterproof cap are fixed by adopting the sealing epoxy resin after clamping fit, the upper cover and the rear cover are fixed by adopting the sealing epoxy resin after clamping fit, and the rear cover and the terminal are fixed by adopting the sealing epoxy resin after interference fit, so that the waterproof performance can be improved; the rubber ring and the nut are matched with a finished product and are subjected to waterproof fixation by adopting rotary extrusion, so that the waterproofness is further improved;

the second step is as follows: when the press key moves downwards under pressure, the press key enables the waterproof cap to move downwards through the base, the waterproof cap enables the two terminals to move downwards through the limiting cover, the V-shaped groove of the support moves downwards at the moment, the contact piece rotates downwards and moves away from each other, the double-hook spring is stretched, the return spring is compressed, the external force is removed, the double-hook spring and the return spring return to the original state, the contact piece rotates upwards through the V-shaped groove through friction force, and therefore the press key is convenient to reset quickly, and performance is improved.

Drawings

The utility model is further explained below with reference to the figures and examples:

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is an exploded schematic view of the present invention;

FIG. 3 is an enlarged schematic view of FIG. 2 at A;

FIG. 4 is a front cut-away schematic view of the present invention;

fig. 5 is an enlarged schematic view of the structure at B of fig. 4.

Description of reference numerals:

1. an upper cover; 2. pressing a key; 3. a base; 4. a support; 5. a waterproof cap; 6. a limiting cover; 7. a terminal; 8. a rear cover; 9. a return spring; 10. a contact piece; 11. a double hook spring; 12. and a nut.

Detailed Description

The present invention is described in detail below, and technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides a high-performance key switch by improvement, and the technical scheme of the utility model is as follows:

as shown in fig. 1-5, a high performance key switch comprises an upper cover 1 and a rear cover 8, wherein a first sliding hole is formed at the top of the upper cover 1, a second sliding hole coaxial with the first sliding hole is formed at the bottom of the upper cover 1, the diameter of the sliding hole is larger than that of the second sliding hole, a round hole coaxial with the first sliding hole is formed in the inner wall of the bottom of the first sliding hole and penetrates through the top of the second sliding hole, a key assembly is arranged in the first sliding hole, the second sliding hole and the round hole, a first buckle is arranged on the inner wall of the two sides of the upper cover 1 below the second sliding hole, a first clamping groove matched with the first buckle is formed on the outer wall of the two sides of the rear cover 8, the first clamping groove is matched with the first buckle in a sliding and clamping manner, a third sliding hole matched with the key assembly is formed on the top of the rear cover 8, a placing groove is formed in the middle part of the inner wall of the bottom of the third sliding hole, sliding openings are formed on the two sides of the inner wall of the bottom of the third sliding hole, a terminal 7 is slidably arranged on the inner wall of the sliding opening, the two terminals 7 located in the rear cover 8 and bent towards the side close to each other side, the terminal 7 is not contacted with the inner wall of the bottom of the third sliding hole, a reset assembly is arranged between the terminal 7 and the inner wall of the bottom of the third sliding hole, it needs to be explained here that the upper cover 1 and the rear cover 8 are fixed by adopting the sealing epoxy resin after being in snap fit, and the rear cover 8 and the terminal 7 are fixed by adopting the sealing epoxy resin after being in interference fit.

Further, the button subassembly includes button 2, base 3 and

waterproof cap

5, 2 slidable mounting of button are on the inner wall of slide opening one, 3 slidable mounting of base are on the inner wall of round hole, the slidable mounting of waterproof cap 5 is on the inner wall of slide opening two, joint hole one has been seted up at waterproof cap 5's top, the bottom joint of base 3 is on the inner wall of joint hole one, joint hole two has been seted up to button 2's bottom, the top joint of base 3 is on the inner wall of joint hole two, it fixes to explain here that base 3 and waterproof cap 5 adopt joint cooperation back sealed epoxy, waterproof nature is improved.

Further, be provided with spacing lid 6 and mutual contact between waterproof cap 5 and the terminal 7, spacing lid 6 is the ring form and coaxial with back lid 8, and spacing lid 6 plays limiting displacement.

Further, the slot has been seted up to the bottom of base 3, and the inner wall of slot slides and pegs graft there is support 4, and the bottom of support 4 is to both ends branching, makes it become the Y shape, and the forked both ends of support 4 contact with the inner wall of standing groove, and support 4 main function is as the bearing point of a power.

Further, the outer walls of both sides of the support 4 are provided with V-grooves, the reset assembly comprises a reset spring 9, a contact piece 10 and a double-hook spring 11, the reset spring 9 is located between the inside of the placing groove and the two bifurcated ends of the support 4, the two ends of the reset spring 9 are respectively contacted with the bottom of the placing groove and the bottom of the support 4, the body of the contact piece 10 is a semi-circular arc plate, the two ends of the semi-circular arc plate are distributed up and down, the semi-circular arc plate is located at the bottom end and extends to one side of the support 4 to form a plate and is contacted with the inner wall of the V-groove, the arc-shaped inner side wall of the contact piece 10 is provided with hook holes, the two hook heads of the double-hook spring 11 are respectively hooked on the inner wall of the hook holes, the contact piece 10 is in one-to-one correspondence with the two terminals 7 and is located below the bending positions of the terminals 7, the V-grooves of the support 4 move down and make the contact piece 10 rotate and move away from each other, the double-hook spring 11 is stretched, the return spring 9 is compressed, the external force is removed, the double-hook spring 11 and the return spring 9 return to the original state, and the contact piece 10 rotates to enable the support 4 to move upwards through the friction force by means of the V-shaped groove.

Further, the periphery wall of the upper cover 1 is connected with a nut 12 through threads, the periphery wall of the upper cover 1 is sleeved with a rubber ring, the rubber ring is located above the nut 12, and the rubber ring and the nut 12 are matched with a finished product to be subjected to waterproof fixing through rotary extrusion.

The working principle is as follows: the base 3 and the waterproof cap 5 are fixed by adopting the sealing epoxy resin after being clamped and matched, the upper cover 1 and the rear cover 8 are fixed by adopting the sealing epoxy resin after being clamped and matched, and the rear cover 8 and the terminal 7 are fixed by adopting the sealing epoxy resin after being in interference fit, so that the waterproof performance can be improved; the rubber ring and the nut 12 are matched with a finished product and are subjected to waterproof fixation by adopting rotary extrusion, so that the waterproofness is further improved; when receiving pressure to the button 2 and moving downwards, button 2 makes waterproof cap 5 move down through base 3, waterproof cap 5 makes two terminals 7 move down with the help of spacing lid 6, the V-arrangement groove of support 4 moves down and makes contact piece 10 rotate down and do the motion of keeping away from each other this moment, double hook spring 11 is stretched, reset spring 9 is compressed, remove external force, double hook spring 11 and reset spring 9 return the original state, contact piece 10 goes up to pass through frictional force with the help of the V-arrangement groove and makes support 4 move up, the button 2 of being convenient for resets fast like this, and the performance is improved.

The previous description is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high performance push button switch characterized by: the novel key assembly comprises an upper cover (1) and a rear cover (8), wherein a first sliding hole is formed in the top of the upper cover (1), a second sliding hole coaxial with the first sliding hole is formed in the bottom of the upper cover (1), the diameter of the sliding hole is larger than that of the second sliding hole, a round hole coaxial with the first sliding hole is formed in the bottom inner wall of the first sliding hole and penetrates through the top of the second sliding hole, a key assembly is installed in the first sliding hole, the second sliding hole and the round hole, first buckles are arranged on the two side inner walls of the upper cover (1) below the second sliding hole, first clamping grooves matched with the first buckles are formed in the two side outer walls of the rear cover (8), the first clamping grooves are matched with the first buckles in a sliding clamping mode, a third sliding hole matched with the key assembly is formed in the top of the rear cover (8), a placing groove is formed in the middle of the bottom inner wall of the third sliding hole, sliding openings are formed in the two sides of the bottom inner wall of the third sliding hole, and a terminal (7) is installed on the inner wall of the sliding opening in a sliding mode, two terminals (7) are located the inside end of back lid (8) and bend to one side that is close to each other, terminal (7) do not contact with the bottom inner wall of slide opening three, be provided with reset assembly between terminal (7) and the bottom inner wall of slide opening three.

2. The high-performance key switch according to claim 1, wherein: the button subassembly includes button (2), base (3) and waterproof cap (5), button (2) slidable mounting is on the inner wall of slide opening one, base (3) slidable mounting is on the inner wall of round hole, the slidable mounting of waterproof cap (5) is on the inner wall of slide opening two, joint hole one has been seted up at the top of waterproof cap (5), the bottom joint of base (3) is on the inner wall of joint hole one, joint hole two has been seted up to the bottom of button (2), the top joint of base (3) is on the inner wall of joint hole two.

3. A high-performance push switch according to claim 2, characterized in that: be provided with spacing lid (6) and mutual contact between waterproof cap (5) and terminal (7), spacing lid (6) are the ring form and coaxial with back lid (8).

4. A high-performance push switch according to claim 2, characterized in that: the bottom of the base (3) is provided with a slot, the inner wall of the slot is inserted with a support (4) in a sliding mode, the bottom of the support (4) is forked towards two ends to form a Y shape, and the two forked ends of the support (4) are in contact with the inner wall of the placing groove.

5. The high-performance key switch according to claim 4, wherein: the outer walls of the two sides of the bracket (4) are both provided with V grooves, the reset component comprises a reset spring (9), a contact piece (10) and a double-hook spring (11), the return spring (9) is positioned between the inner part of the placing groove and the two forked ends of the bracket (4), two ends of the return spring (9) are respectively contacted with the bottom of the placing groove and the bottom of the bracket (4), the contact piece (10) body is a semicircular arc plate, two ends of the semicircular arc plate are distributed up and down, and the semicircular arc plate is positioned at the end head of the bottom and extends to one side of the bracket (4) to form a plate, and is contacted with the inner wall of the V-shaped groove, the arc-shaped inner side wall of the contact piece (10) is provided with a hook hole, two hook heads of the double-hook spring (11) are respectively hooked on the inner wall of the hook hole, and the contact piece (10) corresponds to the two terminals (7) one by one and is located below the bending position of the terminals (7).

6. The high-performance key switch according to claim 1, wherein: the periphery wall of upper cover (1) has nut (12) through threaded connection, the rubber circle has been cup jointed to the periphery wall of upper cover (1), the rubber circle is located nut (12) top.