TWI641014B - Rotary Switches - Google Patents

Abstract

A knob switch includes a cover, a rotating member, a spring piece, a contact element, a plurality of signal terminals, a light-emitting element, and a seat body. The cover includes a wall body, a cover plate, a shaft hole disposed on the cover plate, and a plurality of light transmitting portions. An accommodation space and an interference tooth portion are formed between the cover plate and the wall body. The rotating member includes a rotating portion, a base portion, a neck portion, and a notch formed at the base portion. The shrapnel is fixed to the neck. When the rotating member rotates, the elastic piece is buckled to the interference tooth portion according to the rotation of the rotating member, and reaches different positioning, and the notch is corresponding to one of the plurality of transparent portions when the rotating member reaches any positioning, so that the light is emitted. The light of the component penetrates through the corresponding light transmitting portion to indicate the positioning of the rotating member.

Description

Rotary Switches

The invention relates to an electronic switch, in particular to a rotary switch with a mechanical combined rotary coding function, which can provide continuous multi-segment rotational positioning and can provide clear segment display.

Press, whether it is 3C electronic products, communication devices or home appliances, etc., often equipped with a rotary switch, the rotary switch is generally used in the power switching of the circuit, as well as the high and low power supply adjustment, in order to adjust the speed of the electrical operation and Strong or weak, such as the speed of the electric fan, the strength of the air conditioner, the volume of the sound, the brightness of the light, and the signal strength of the radio.

The conventional mechanical rotary switch is composed of a mechanical component, and has a body and a knob pivotally connected to the body for the user to rotate, and the rotary positioning uses a tooth structure provided on the outer edge of the knob and a snap arm buckle. Achieved. However, the snap arm is fixed inside the body. When the knob is rotated and the snap arm is snapped, the buckle arm is easily detached from the connection position of the body, and the buckle arm cannot be effectively and reliably buckled. In the tooth structure, even the structure of the circuit board in the body is damaged, so that the rotary switch cannot function. In addition, unlike the switch, the purpose of the rotary switch is to use the rotating path to provide multi-stage conduction to control the functions of the application products, such as adjusting the brightness and volume of the light. However, the traditional rotary switch does not provide a segment on the structure. The display shows that the position after the rotation is not visible in the dim, causing inconvenience in use and even mis-controlling the switch; although the operator has improved the knob and marked a mark on the knob, it is difficult to clearly identify the segment. Not to mention the dim brightness, or the identification difficulty when applied to the micro switch is much higher than the general situation.

The object of the present invention is to provide a knob switch which can be rotationally positioned and can be positioned to match the position of the light-emitting display by a simple configuration, so that the user can clearly recognize the position after the switch is rotated.

In order to achieve the foregoing objective, the knob switch of the present invention comprises a cover, comprising a wall body and a cover plate, wherein the cover plate is provided with a shaft hole and a plurality of transparent portions, which are disposed around the shaft hole, the cover plate and the wall Forming an accommodating space between the body and an interference tooth portion, the interference tooth portion is disposed around the wall body; a rotating member includes a rotating portion, a base portion, a neck portion between the rotating portion and the base portion, and At least one of the notches formed in the base portion, the shaft hole of the cover sleeve is inserted into the rotating portion, and the periphery of the neck portion is provided with at least one positioning portion, the notch communicates with the receiving space of the cover; at least one elastic piece, solid a positioning portion disposed on the neck; a contact member fixed to a bottom surface of the base of the rotating member; a body fixed to the wall of the cover; and a plurality of signal terminals disposed around the base of the rotating member One end of each of the signal terminals extends out of the body of the housing for electrically connecting to a circuit board of an application product; and at least one of the light emitting elements includes a light emitting portion and two pins, and the light emitting portion is located at the base and the Between the rotating members, the two legs extend out of the seat In addition, the light-emitting portion is turned on; wherein, when the rotating member is rotated, the at least one elastic piece is buckled to the interference tooth portion according to the rotation of the rotating member, and reaches a different position, and the notch is in the rotating member When any positioning is reached, it corresponds to one of the plurality of transparent portions, so that the light of the light-emitting element penetrates the corresponding light-transmitting portion for indicating the position of the rotating member.

According to another embodiment of the present invention, the notch of the base extends to the neck portion to provide more light from the light-emitting element.

According to one embodiment of the present invention, any of the light transmissive portions of the cover correspond to any of the flanges, and the abutting portion is positioned to abut against any of the grooves.

According to one embodiment of the present invention, a plurality of light-transmitting portions of the cover are respectively provided with a mark symbol, and the mark symbols are different from each other, and the rotating member is opaque.

The knob switch of the invention utilizes the notch of the rotating member, cooperates with the plurality of transparent portions of the cover, and the light-emitting element is fixedly fixed on the seat body, so that after the rotating member is rotated and positioned, the light-transmitting portion can receive the brightness from the light-emitting element by the gap. Therefore, the user can clearly recognize the position of the rotation, that is, the position of the function of the controlled application product, effectively solving the shortcoming that the traditional knob can not clearly indicate the position reached by the rotation.

1‧‧‧ knob switch

2‧‧‧ Cover

20‧‧‧ accommodating space

21‧‧‧ wall

211‧‧‧Integrated card

212‧‧‧Fixed holes

22‧‧‧ Cover

220‧‧‧Axis hole

23‧‧‧Transmission Department

231‧‧‧ mark symbol

24‧‧‧Interference tooth

241‧‧‧Flange

242‧‧‧ tooth groove

3‧‧‧Rotating parts

30‧‧‧ gap

31‧‧‧Rotation

32‧‧‧ neck

321‧‧‧ Positioning Department

33‧‧‧ base

4‧‧‧Shrap

41‧‧‧ Holding Department

42‧‧‧Resistance Department

5‧‧‧Contact elements

51‧‧‧Connecting arm

52‧‧‧Contact arm

6‧‧‧ Signal Terminal

7‧‧‧Lighting elements

71‧‧‧Lighting Department

72‧‧‧ pins

8‧‧‧ body

81‧‧‧ card slot

811‧‧‧ card

The first figure is a three-dimensional combination diagram of the knob switch of the present invention.

The second figure is an exploded view of the first figure.

The third figure is a top plan view of the first figure.

The fourth figure is a perspective view of a viewing angle of a cover of the present invention.

The fifth figure is a partial three-dimensional combination diagram of the knob switch of the present invention.

The sixth figure is a schematic cross-sectional view of the knob switch of the present invention.

The knob switch 1 of the invention can be applied to electronic products, electrical products or in-vehicle device switches for controlling the opening or closing of the application products, and/or adjusting various functions of the products, such as adjusting the brightness and the brightness, the volume, and the power. Or choose between different functions to provide multi-stage fine functional changes.

Please refer to the first embodiment and the second figure for a preferred embodiment of the rotary switch 1 of the present invention. The rotary switch 1 of the present invention has a circular configuration, including a cover 2, a rotating member 3, two elastic pieces 4, and a The contact element 5, the complex signal terminal 6, a light-emitting element 7, and a body 8. The cover 2 includes an annular wall 21 and a cover 22 disposed on the wall 21. There is a cover plate 22 The shaft hole 220 and the plurality of transparent portions 23 are equally spaced and disposed around the shaft hole 220. A receiving space 20 and an interference tooth portion 24 are formed between the cover plate 22 and the wall body 21. Specifically, the interference tooth portion 24 is located directly under the cover plate 22 and is disposed around the wall body 21. In the preferred embodiment, the interference tooth portion 24 includes a plurality of flanges 241 and a tooth groove 242 which together form a continuous arc. The shaped surface (as shown in the fourth figure), and any of the light transmitting portions 23 corresponds to any of the flanges 241. In addition, the plurality of transparent portions 23 are respectively provided with a reference symbol 231, and the reference symbols 231 are different from each other. In the preferred embodiment, the reference symbols 231 are different numbers for marking different segments. The cover 2 itself is a white light-transmissive material, and the black paint is shielded from the outer surface by light, and only the plurality of transparent portions 23 are not baked black paint, and then the laser-marked symbol 231 is on the light-transmitting portion 23, so that the whole cover 2 Only a plurality of transparent portions 23 can transmit light for the purpose of clearly and clearly displaying the segment marks.

As shown in the second figure, the rotating member 3 is opaque, has a hollow shape inside and is open at the bottom. The rotating member 3 includes a rotating portion 31, a base portion 33, and a portion between the rotating portion 31 and the base portion 33. The neck portion 32, and a notch 30 formed in the base portion 33. In the preferred embodiment, the base portion 33 extends laterally beyond the rotating portion 31 and the neck portion 32 such that the base portion 33 and the neck portion 32 form an approximately L-shaped cross section, and the radial width of the neck portion 32 is smaller than the rotating portion 31. And the circumference of the neck 32 is provided with two positioning portions 321 which extend outward to form a column shape. During assembly, the rotating portion 31 is nested upwardly from below the shaft hole 220 of the cover plate 22, so that the neck portion 32, the base portion 33 and the notch 30 are located in the accommodating space 20 of the cover 2, wherein the base portion 33 is located at the interference tooth portion 24. Below (as shown in Figure 6), the interference toothing 24 can further effect the longitudinal restriction of the base portion 33. In particular, the notch 30 of the base portion 33 extends to the neck portion 32, and the notch 30 communicates with the accommodating space 20 of the cover 2 and the inside of the rotating member 3.

Continuing to refer to the second figure, in conjunction with the fifth figure, each of the elastic pieces 4 includes a holding portion 41 and two abutting portions 42 extending from opposite sides of the holding portion 41. The holding portion 41 is fixed to the positioning portion 321 of the neck portion 32. Each abutting portion 42 has a curved surface to facilitate the abutting portion 42 and the interference tooth. The rotational positioning of the portion 24; in particular, when the abutment portion 42 abuts against any of the grooves 242, the rotary member 3 reaches the rotational position.

The contact member 5 is made of a metal material and is fixed to the bottom surface of the base portion 33 of the rotary member 3 (as shown in the second figure). The contact element 5 includes a connecting arm 51 and a plurality of contact arms 52. The plurality of contact arms 52 collectively form an annular configuration and extend integrally to opposite ends of the connecting arm 51.

The plurality of signal terminals 6 are disposed around the base portion 33 of the rotating member 3 (as shown in the second figure), and one end of each of the signal terminals 6 extends out of the base 8 for electrically connecting to a circuit board of an application product (not Graphic). The contact element 5 is electrically rotated by the rotating member 3 to electrically contact the plurality of contact arms 52 to different portions of the plurality of signal terminals 6, thereby generating a coded signal for controlling the application product.

The light-emitting element 7 includes a light-emitting portion 71 and two pins 72. The light-emitting portion 71 is located between the base 8 and the rotating member 3, and is covered in the rotating member 3. The two pins 72 are positive and negative electrodes, and the extending portion 8 extends. The outside of the housing is used to illuminate the light-emitting portion 71. In this embodiment, after the two pins 72 are energized, the light-emitting portion 71 can emit light.

The base body 8 is fixed to the wall body 21 of the cover 2 (as shown in the first figure), wherein the bottom edge of the wall body 21 of the cover 2 extends downwardly to form a pair of insert members 211, and each of the insert members 211 A fixing hole 212 is disposed, and a peripheral edge of the base 8 is provided with a pair of card slots 81 (shown in the second figure) for engaging the card member 211 for receiving the pair of card members 211, and each card slot A card member 811 is disposed in the 81 for inserting the card into the fixing hole 212.

When the knob switch 1 of the present invention is used, the rotary member 3 is rotated to a desired position. During the rotation, the abutting portion 42 of the two side elastic pieces 4 is biased against the plurality of teeth of the interference tooth portion 24 according to the rotation of the rotary member 3. The groove 242 is different in positioning. At this time, the rotating member 3 is rotated to the positioning rotating member 3, and the notch 30 corresponds to one of the plurality of transparent portions 23 and is located below the transparent portion 23 (as shown in FIG. 6). The light-emitting luminance of the light-emitting element 7 is transmitted to the light-transmitting portion through the notch 30. 23, the light transmitting portion 23 is scattered through the brightness, and the mark symbol 231 is clearly displayed thereon, and once the rotating member 3 is rotated again, the notch 30 is synchronously displaced, no longer corresponding to the light transmitting portion 23, that is, light transmitting The portion 23 does not receive the light ray of the illuminating element 7 without exhibiting brightness until the rotating member 3 is rotated to the next position.

In summary, the knob switch 1 of the present invention utilizes the notch 30 of the rotating member 3, the plurality of transparent portions 23 of the cover 2, and the arrangement of the light-emitting element 7 fixed to the seat body 8, so that the rotating member 3 is rotated. After that, the light transmitting portion 23 can receive the brightness from the light-emitting element 7 by the notch 30, so that the user can clearly recognize the rotated position, that is, the position of the function of the controlled application product, effectively solving the traditional rotary switch can not clearly display the rotational positioning. Shortcomings.

The above detailed description is intended to be illustrative of a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and other equivalents and modifications may be made without departing from the spirit of the invention. Changes are intended to be included in the scope of the patents covered by the present invention.

Claims (7)

A knob switch comprising: a cover, comprising a wall body and a cover plate, wherein the cover plate is provided with a shaft hole and a plurality of transparent portions, which are disposed around the shaft hole, and a cover plate and the wall body form a An accommodating space and an interference tooth portion, the interference tooth portion is disposed around the wall body; a rotating member includes a rotating portion, a base portion, a neck portion between the rotating portion and the base portion, and at least one formed thereon a notch of the cover, the shaft hole of the cover is inserted into the rotating portion, the periphery of the neck is provided with at least one positioning portion, the notch is connected to the receiving space of the cover; at least one elastic piece is fixed to the neck a positioning portion; a contact element fixed to a bottom surface of the base of the rotating member; a body fixed to the wall of the cover; a plurality of signal terminals disposed around the base of the rotating member, each signal terminal a circuit board extending from the outside of the body for electrically connecting to an application product; and at least one light-emitting component comprising a light-emitting portion and two pins, the light-emitting portion being located between the base and the rotating member The two pins extend out of the body to turn on the The light portion emits light; wherein when the rotating member rotates, the at least one elastic piece is buckled to the interference tooth portion according to the rotation of the rotating member, and reaches different positioning, and the notch is when the rotating member reaches any positioning Corresponding to one of the plurality of transparent portions, the light emitting of the light-emitting element is transmitted through the corresponding light-transmitting portion for indicating the position of rotation of the rotating member, and the notch of the base portion extends to the neck portion for The light transmitting portion is provided with more illumination from the light emitting element. The knob switch according to claim 1, wherein the base of the rotating member extends laterally beyond the rotating portion and the neck portion, and the interference tooth portion of the cover is located directly above the base portion, further to the base portion The effect of reaching the vertical limit. The knob switch according to claim 1, wherein the plurality of transparent portions of the cover are respectively provided with a mark symbol, the mark symbols are different from each other, and the rotary member is opaque. The knob switch of claim 1, wherein the interference tooth portion comprises a plurality of flanges and a groove, which together form a continuous curved surface, the at least one elastic piece includes a retaining portion and at least one extends out of the holding The abutting portion on one side of the portion is fixed to the positioning portion of the neck portion, and the abutting portion has a curved surface to facilitate the rotational positioning of the abutting portion and the interference tooth portion. The knob switch of claim 4, wherein any one of the transparent portions of the cover corresponds to any of the flanges, and the abutting portion is positioned against any of the grooves. . The knob switch according to claim 1, wherein a bottom edge of the wall of the cover extends downwardly from a pair of inserts, and each of the inserts is provided with a fixing hole, and the peripheral edge of the base The card holder should be provided with a pair of card slots for receiving the pair of card members, and a card member is disposed in each of the card slots for engaging the fixing holes. The knob switch of claim 1, wherein the contact element electrically contacts different portions of the plurality of signal terminals by rotation of the rotating member to generate an encoded signal for controlling the application product.