CN216450544U

CN216450544U - One-key multi-gear switch

Info

Publication number: CN216450544U
Application number: CN202122838203.6U
Authority: CN
Inventors: 张育奇; 王洪涛
Original assignee: Liantek Electrical Appliances Shenzhen Co Ltd
Current assignee: Liantek Electrical Appliances Shenzhen Co Ltd
Priority date: 2021-11-17
Filing date: 2021-11-17
Publication date: 2022-05-06
Anticipated expiration: 2031-11-17

Abstract

The utility model discloses a one-key multi-gear switch which comprises a PCB (printed circuit board), a press keycap, a first travel switch assembly and a second travel switch assembly, wherein the first travel switch assembly comprises a first gear contact, a first contact and a first elastic piece; the second travel switch assembly comprises a second gear contact, a second contact and a second elastic piece, and the travel of the first travel switch assembly is smaller than that of the second travel switch assembly. This application can control the electrical apparatus through a button and move with a plurality of gears, along with the grow of the degree of pressure, the switch alright with the output power grow of controlling the electrical apparatus, the electrical apparatus of this switch has been used in the middle of, the user alright with the operation and the shutdown of electrical apparatus are controlled to the one hand, the gear of electrical apparatus can also be adjusted to the one hand, another hand that so liberate can be with other devices of convenience of customers's operation, the whole operation is very convenient, the security has also obtained very big promotion simultaneously.

Description

One-key multi-gear switch

Technical Field

The utility model relates to the technical field of gear switches, in particular to a one-key multi-gear switch for an electric kitchen appliance.

Background

The hand-held stirring rod is a common application of electric kitchen appliances, and is widely used due to the fact that the hand-held stirring rod is suitable for various occasions and convenient to use. In the existing handheld stirring rod in the market, the switch keys of the existing handheld stirring rod are generally provided with two switch keys or one switch key and one rotating speed adjusting button, when the handheld stirring rod is used, two fingers are required to be respectively pressed on different switch keys to adjust the rotating speed, one finger is bound to leave the key during working, and therefore the gripping force of the gripper is bound to be influenced; for the hand-held stirring rod with one switch button and the rotating speed adjusting button, the body can be tightly held by the hand, but when the speed is adjusted, the rotating speed adjusting button needs to be rotated by the other hand, so that the food processing container is not stably held by the hand, and the stability of the food processing container is also influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a one-key multi-gear switch, which solves the technical problem of inconvenient operation when a switch key adjusts gears in the prior art.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: the utility model provides a switch of many gears of a key, includes the PCB board and presses the key cap, still includes: the first travel switch assembly controls the electric appliance to operate at a first gear after being conducted, and comprises a first gear contact arranged on the PCB, a first contact arranged in the press keycap and a first elastic piece arranged between the press keycap and the PCB, wherein the first gear contact is in contact conduction with the first contact; the second travel switch assembly is connected with the first travel switch assembly to control the electric appliance to run at a second gear, and comprises a second gear contact arranged on the PCB, a second contact arranged in the press key cap and a second elastic piece arranged between the second contact and the first contact and used for pushing the second contact to be far away from the first contact, the second gear contact and the second contact are in contact conduction, the elastic direction of the second elastic piece is the direction of keeping away from the first gear contact and the first contact, and the stroke of the first travel switch assembly is smaller than that of the second travel switch assembly.

Further, the PCB board is provided with a first cylinder and a second cylinder in a protruding mode, the end portion of the first cylinder is provided with the first gear contact, and the end portion of the second cylinder is provided with the second gear contact.

Furthermore, a first detachable pressure lever is arranged in the press key cap, and a first convex contact is arranged in the radial direction of the first pressure lever.

Further, the first pressure lever is arranged between the first column body and the second column body.

Further, be equipped with the second depression bar in pressing the key cap, be equipped with convex second contact on the radial direction of second depression bar, the one end of second depression bar is equipped with eaves portion, eaves portion and the upper end fixed connection who presses the key cap, the second elastic component is located eaves portion with between the first depression bar.

Further, the first pressure lever and the second pressure lever are coaxially arranged.

Further, the second depression bar is hollow, just the second depression bar with the other end that the eaves portion is relative is equipped with the opening, be equipped with on the lateral wall of second depression bar and follow the eaves portion extends to the open-ended groove of stepping down, first depression bar is located the inside of second depression bar, just first contact is followed the groove of stepping down stretches out.

Further, the first elastic member is a first spring, and the second elastic member is a second spring.

Furthermore, the first spring is sleeved on the first pressure lever, and the first spring is abutted between the end part of the second pressure lever and the PCB.

Further, the first contact and the eaves part are provided with a pair of opposite protrusions, and the second spring is sleeved on the protrusions.

Has the advantages that: compared with the prior art, this application can control the electrical apparatus through a button and move with a plurality of gears, along with the grow of pressing the pressure degree, the switch alright in order to control the output power grow of electrical apparatus, the electrical apparatus (for example handheld stirring rod) of having applied this switch is in the middle of using, the user alright in order to the operation and the shut-down of one-hand control electrical apparatus, can also one-hand adjust the gear of electrical apparatus, another hand that so liberate alright in order to convenience of customers's operation other device, the whole operation is very convenient, the security has also obtained very big promotion simultaneously.

Drawings

Fig. 1 is a schematic cross-sectional view of a one-key multi-position switch according to the present invention before being pressed.

Fig. 2 is a schematic cross-sectional view of a one-key multi-position switch in a low position according to the present invention.

Fig. 3 is a schematic cross-sectional view of a one-key multi-position switch in the high position of the present invention.

Wherein, the main reference signs in the utility model are:

1. a PCB board; 2. pressing the keycap; 3. a first travel switch assembly; 31. a first gear contact; 32. a first contact; 33. a first elastic member; 34. a first column; 35. a first pressure lever; 4. a second travel switch assembly; 41. a second gear contact; 42. a second contact; 43. a second elastic member; 44. a second cylinder; 45. a second compression bar; 451. an eave portion; 6. and (4) protruding.

Detailed Description

It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

The utility model provides a switch with one key and multiple gears, as shown in figures 1 to 3, the switch provided by the application mainly comprises four parts: PCB board 1, press key cap 2, first travel switch subassembly 3 and second travel switch subassembly 4.

Wherein, the first travel switch assembly 3 comprises a first gear contact 31, a first contact 32 and a first elastic member 33; the first gear contact 31 is arranged on the PCB 1, the first contact 32 is arranged on the press key cap 2, the first elastic piece 33 is arranged between the press key cap 2 and the PCB 1, when a person manually presses down the press key cap 2, the first contact 32 is in contact conduction with the first gear contact 31, the control motor on the PCB 1 operates at a first gear (low gear), when the control motor is released, the press key cap 2 is bounced off by the first elastic piece 33, the first contact 32 is separated from the first gear contact 31, and the motor stops operating; the second travel switch assembly 4 includes a second position contact 41, a second contact 42 and a second elastic member 43, the second position contact 41 is disposed on the PCB board 1, the second contact 42 is disposed on the pressing key cap 2, and the second elastic member 43 is disposed between the second contact 42 and the first contact 32, and the first travel switch assembly 3 is formed smaller than the second forming switch assembly, such that when a person manually presses the pressing key cap 2, the first contact 32 is first in contact with the first position contact 31, and after the first contact 32 is in contact with the first position contact 31, the second elastic member 43 disposed between the second contact 42 and the first contact 32 is compressed, the second contact 42 continues to move downwards until the second contact 42 is in contact with the second position contact 41, and the first travel switch and the second travel switch are both in contact conduction, the PCB 1 controls the motor to operate at a second gear (high gear) according to a built-in circuit, when the motor is released, the second contact 42 is separated from the second gear contact 41, the motor can continue to operate at a low gear, and the motor can not be completely stopped until the first contact 32 is separated from the first gear contact.

The application has the advantages that: can control the electrical apparatus through a button and move with a plurality of gears, along with the grow of pressing the pressure degree, the switch alright with the output power grow of controlling the electrical apparatus, the electrical apparatus (for example handheld stirring rod) of having applied this switch is in the middle of using, the user alright with the operation and the shut-down of electrical apparatus are controlled to the one hand, can also adjust the gear of electrical apparatus by the one hand, another hand that so liberate alright other devices of convenient to use user's operation, the whole operation is very convenient, the security has also obtained very big promotion simultaneously.

Further, in an embodiment, the first cylinder 34 and the second cylinder 44 are protruded on the PCB 1, the first position contact 31 is disposed at the protruded end of the first cylinder 34, and the second position contact 41 is disposed at the protruded end of the second cylinder 44, such a configuration gives a certain downward margin to the press key cap 2, which ensures good contact between each contact and the position contact, thereby ensuring the stability of the output of the electrical appliance and improving the user experience.

Of course, in other embodiments, the first shift contact 31 and the second shift contact 41 may be directly disposed on the surface of the PCB board 1.

Further, the first contact 32 in this application is arranged on the first pressing rod 35, and the first pressing rod 35 is installed on the pressing keycap 2 in a detachable manner, the first pressing rod 35 is installed in the pressing keycap 2, a convex block is arranged in the radial direction of the first pressing rod 35, and the block is the first contact 32, so that the manufacturing difficulty of the product is reduced, compared with the integrally formed mode, the cost is lower due to the mode, the assembling is good, the first pressing rod 35 can act as a stress more, the stress of the first contact 32 is not needed, and the service life of the product is ensured.

Wherein, first depression bar 35 in this application is located between first cylinder 34 and the second cylinder 44, and such setting for first cylinder 34 and second cylinder 44 can also possess spacing effect, and it rocks to place first depression bar 35 and take place at the in-process that pushes down.

Furthermore, a second pressure lever 45 is further arranged in the application, a second contact 42 protruding from the second pressure lever 45 is arranged in the radial direction of the second pressure lever 45, an eaves portion 451 is arranged at the upper end of the second pressure lever 45, the eaves portion 451 is fixedly connected with the upper end of the inside of the pressing keycap 2, and the second elastic piece 43 is arranged between the eaves portion 451 and the first pressure lever 35, so that the second contact 42 can be pressed down continuously when the contact cannot be pressed down continuously, meanwhile, the second pressure lever 45 can serve as a stress more, the stress of the second contact 42 is not needed, and the service life of the product is guaranteed.

Based on the above arrangement mode, in order to facilitate the reasonable size of the control switch, the pressing action can be stably carried out, the false triggering is avoided, and the first pressing rod 35 and the second pressing rod 45 are coaxially arranged.

Furthermore, in a preferred embodiment, the second pressing rod 45 is provided as a hollow structure, the lower end (the end opposite to the brim 451) of the second pressing rod 45 is provided with an opening, and the sidewall of the second pressing rod 45 is provided with a receding groove, the receding groove has a length, the length direction of the receding groove is consistent and extends from the brim 451 of the second pressing rod 45 to the opening, the first pressing rod 35 is provided inside the second pressing rod 45, and the first contact 32 extends out from the receding groove, so that the overall length of the switch can be effectively shortened, the second pressing rod 45 can provide an installation position for the first pressing rod 35, the first pressing rod 35 and the second pressing rod 45 are ensured not to shake when pressed down, and the relative movement between the first pressing rod 35 and the second pressing rod 45 can be ensured, the design mode and the structure are reasonable, and various functions required by the present application can be realized by a relatively simple structure, has the requirements of both cost and function.

Preferably, the first elastic member 33 is a first spring, and the second elastic member 43 is provided as a second spring.

First spring housing is established on first depression bar 35, and first spring butt is between the tip of second depression bar 45 and PCB board 1 for holistic overall arrangement is more reasonable, and first spring both can not the atress uneven when receiving elastic compression, also can not take place to rock, guarantees the result of use.

In addition, in the present application, in order to avoid the problem of false triggering caused by too close proximity between the first gear contact 31 and the second gear contact 41, the first gear contact 31 and the second gear contact 41 are oppositely arranged, and correspondingly, the second contact 42 and the first contact 32 are also convexly arranged in opposite directions, so that the uniform stress of the switch depression can be ensured, and the false touch cannot occur.

The second spring of this application then directly sets up between first contact 32 and the eaves portion 451 of second depression bar 45, for the stability of better assurance second spring, has set up a pair of arch 6 relatively here on first contact 32 and eaves portion 451, and the second spring cover is on arch 6, and arch 6 can play a spacing effect to the second spring, prevents that the second spring atress from dislocating.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a switch of many gears of a key, includes PCB board (1) and presses key cap (2), its characterized in that still includes:

the first travel switch assembly (3) is used for controlling the electric appliance to operate at a first gear after being conducted and comprises a first gear contact (31) arranged on the PCB (1), a first contact (32) arranged in the pressing keycap (2) and a first elastic piece (33) arranged between the pressing keycap (2) and the PCB (1), and the first gear contact (31) and the first contact (32) are in contact conduction;

second travel switch subassembly (4), with first travel switch subassembly (3) switch on the back control electrical apparatus together and move with the second gear, it is including locating second gear contact (41) on PCB board (1), locate press second contact (42) in key cap (2), locate be used for promoting between second contact (42) and first contact (32) the second contact is kept away from the second elastic component (43) of first contact, contact between second gear contact (41) and second contact (42) is electrically conductive, the elastic direction of second elastic component (43) is first gear contact (31) and first contact (32) keep away from the direction, just the stroke of first travel switch subassembly (3) is less than the stroke of second travel switch subassembly (4).

2. A one-key multi-position switch according to claim 1, wherein a first column (34) and a second column (44) are protruded from said PCB (1), an end of said first column (34) is provided with said first position contact (31), and an end of said second column (44) is provided with said second position contact (41).

3. A one-key multi-position switch according to claim 2, wherein a first detachable pressure lever (35) is arranged in the press key cap (2), and a first protruding contact (32) is arranged on the first pressure lever (35) in the radial direction.

4. A one-key multiple-position switch according to claim 3, wherein said first pressure lever (35) is arranged between said first cylinder (34) and said second cylinder (44).

5. A switch of a key many gears according to claim 3, characterized in that, be equipped with second depression bar (45) in pressing key cap (2), be equipped with convex second contact (42) on the radial direction of second depression bar (45), the one end of second depression bar (45) is equipped with eaves portion (451), eaves portion (451) and the upper end fixed connection who presses key cap (2), second elastic component (43) are located eaves portion (451) with between first depression bar (35).

6. A one-key multiple-position switch according to claim 5, wherein said first (35) and second (45) pressure levers are coaxially arranged.

7. A switch of many gears of a key according to claim 6, characterized in that, second depression bar (45) is hollow, just second depression bar (45) with the other end that eaves portion (451) is relative is equipped with the opening, be equipped with on the lateral wall of second depression bar (45) and follow eaves portion (451) extends to the open-ended groove of stepping down, first depression bar (35) are located the inside of second depression bar (45), just first contact (32) are followed the groove of stepping down stretches out.

8. A one-key multi-position switch according to claim 7, wherein said first elastic member (33) is a first spring and said second elastic member (43) is a second spring.

9. A switch of a key with multiple gears as claimed in claim 8, wherein said first spring is sleeved on said first pressure lever (35) and abuts between the end of said second pressure lever (45) and said PCB board (1).

10. A one-key multi-position switch according to claim 8, wherein said first contact (32) and said brim (451) are provided with a pair of opposite protrusions (6), and said second spring is fitted over said protrusions (6).