CN100543898C - mode transfer mechanism - Google Patents

Abstract

A mode switching mechanism includes a circuit board with a mode configuration circuit, a plurality of dome elements and an option button. The dome elements are arranged on the circuit board at intervals and correspond to the mode configuration circuit. The option button is rotatably arranged on the circuit board so that the dome elements are connected to the corresponding mode configuration circuit, thereby providing a mode switching mechanism with good contact.

Description

mode transfer mechanism

technical field

The invention relates to a mode shifting mechanism, in particular to a mode shifting mechanism with good contact.

Background technique

The mode switching mechanism is widely used in daily life. It is common in various electronic products, such as the function mode switching of digital cameras or mobile phones. .

Please refer to FIG. 1 , the known mode switching mechanism includes: a circuit board 10a, a rotary switch 20a and an option button 30a.

The circuit board 10a is provided with a mode configuration circuit (not shown) and corresponding multi-segment contacts 11a.

The rotary switch 20a is disposed on the circuit board 10a. The rotary switch 20a has a pair of brush shrapnels 21a, which can be displaced with the rotation of the rotary switch 20a.

The option button 30a is fixed on the rotary switch 20a. By turning the option button 30a, the rotary switch 20a is driven to rotate, and the pair of brush shrapnels 21a are displaced, so as to be electrically connected to the multiple segment contacts 11a on the circuit board 10a. Connect and drive the mode configuration circuit arranged on the circuit board 10a to achieve switching of multiple modes.

However, the rotary switch 20a used in the known mode switching mechanism has a complex structure and high cost, and is prone to deformation of the brush shrapnel 21a due to dust or poor assembly, thereby causing poor contact with the contact point 11a of the circuit board 10a. Functions that affect mode switching.

Due to the above reasons, the inventor of the present invention felt that the above problems could be improved, so he devoted himself to research and combined with the application of theories, and proposed an invention with reasonable design and effective improvement of the above problems.

Contents of the invention

The main purpose of the present invention is to provide a mode shifting mechanism with good contact and relatively low cost.

In order to achieve the above object, the present invention provides a mode switching mechanism, comprising: a circuit board, which is provided with a mode configuration circuit; a plurality of arch film elements, which are arranged on the circuit board at intervals, and connected to the circuit board The mode configuration circuit is corresponding; and an option button, which is rotatably arranged on the circuit board, the option button presses the arch membrane elements, and the arch membrane elements communicate with the corresponding mode configuration circuit, and the option button extends A sphere is produced, which corresponds to the arch membrane elements.

From the above, it can be known that the mode switching mechanism of the present invention drives the mode configuration circuit with the arch film element, so it will not be blocked by dust, and will not cause poor contact due to poor assembly, not only the cost is low, but the yield rate is high , indeed solve the problems of the prior art.

In order to further understand the technology, method and technical effect that the present invention takes to achieve the intended purpose, please refer to the following detailed description and accompanying drawings of the present invention, and believe that the purpose, characteristics and characteristics of the present invention can be obtained from this And for specific understanding, however, the accompanying drawings and appendices are provided for reference and illustration only, and are not intended to limit the present invention.

Description of drawings

Fig. 1 is a perspective view of a known mode transfer mechanism.

FIG. 2 is a perspective view of the first embodiment of the mode switching mechanism of the present invention.

Fig. 3 is a cross-sectional view of the membrane key of the mode switching mechanism of the present invention.

FIG. 4 is a perspective view of a second embodiment of the mode switching mechanism of the present invention.

FIG. 5 is an exploded perspective view of the second embodiment of the mode switching mechanism of the present invention.

Description of main component symbols:

known:

10a circuit board

11a contact

20a rotary switch

21a Brush shrapnel

30a Option button

this invention:

10 circuit boards

20 arch membrane buttons

30 option button

31 spheres

40 circuit boards

41 contacts

50 arch membrane elements

51 arch film button

60 option buttons

61 spheres

70 frames

71 bracket

  711 reclining part

712 boss

Detailed ways

Please refer to FIG. 2 and FIG. 3 , which are the first embodiment of the mode switching mechanism of the present invention, including: a circuit board 10 , a plurality of arch film elements 20 and an option button 30 .

The circuit board 10 is provided with a mode configuration circuit (not shown) for switching between different modes.

The arch membrane elements 20 are a plurality of arch membrane keys (DOME), which are arc-shaped and made of metal material. The arch membrane elements 20 are arranged on the circuit board 10 at intervals, and are connected with the mode configuration circuit. Correspondingly, each arch membrane element 20 can communicate with its corresponding mode configuration circuit.

The option button 30 is in the shape of a disc, which is rotatably arranged on the circuit board 10. A sphere 31 corresponding to the arch film elements 20 extends from the lower end of the option button 30, and the sphere 31 is driven by rotating the option button 30. Sequentially displaced to the top of each arch membrane element 20, the ball 31 presses each arch membrane element 20, and then communicates with the mode configuration circuit corresponding to each arch membrane element 20, achieving the technical effect of mode switching.

Please refer to FIG. 4 and FIG. 5 , which are the second embodiment of the mode switching mechanism of the present invention, including: a circuit board 40 , a plurality of arch film elements 50 , an option button 60 and a frame 70 .

The circuit board 40 is provided with a mode configuration circuit (not shown) and a plurality of contacts 41 corresponding thereto, and the surfaces of the contacts 41 form a tin-sprayed surface by spraying tin.

These arch film elements 50 are a plurality of surface mount type (SMT, Surface Mount Technology) dome switch (DOME SWITCH), and the surface of these arch film elements 50 is adhered to these contacts 41, so that these arch film elements 50 and The circuit board 40 is electrically connected, and each arch film element 50 is provided with a contact point (not shown), and an arch film button 51 is arranged on the upper end of these arch film elements 50, and the arch film button 51 can be pressed. And communicate with the internal contacts of the arch film elements 50 .

The option button 60 is in the shape of a disk and is rotatably disposed on the circuit board 40 . A ball 61 extends from the bottom of the option button 60 for switching the driving mode.

The frame 70 is a hollow circular frame, which can be tiltably arranged between the option button 60 and the circuit board 40. The frame 70 is provided with a plurality of brackets 71, and each bracket 71 upper end is provided with a corresponding ball 61. The leaning portion 711 of the lower end is provided with a protrusion 712 corresponding to the arch membrane elements 50 . By turning the option button 60, the ball 61 is displaced to the top of the reclining portion 711. Since the reclining portion 711 is an inclined surface, when the ball 61 touches the reclining portion 711, it will naturally generate a downward force to press the frame 70, so that the frame 70 is inclined downward and uses the protrusion 712 to press the corresponding arch film button 51 of the arch film element 50, so that the option button 60 presses the arch film element 50 downward through the frame 70, and communicates with the inner part of the arch film element 50. The contacts are then electrically connected to the circuit board 40 via the arch film element 50 to drive the mode configuration circuit of the circuit board 40 to achieve the purpose of mode switching.

From the above, it can be known that the mode switching mechanism of the present invention drives the mode configuration circuit with the arch film element, so it will not be blocked by dust, and will not cause poor contact due to poor assembly, not only the cost is low, but the yield rate is high , indeed solve the problems of the prior art.

However, the above description is only a preferred feasible embodiment of the present invention, and does not limit the claims of the present invention. Therefore, all equivalent technical changes made by using the description of the present invention and the contents of the accompanying drawings are all included in the same principle. Within the protection scope of the present invention, it is hereby explained.

Claims (6)

1. A mode transfer mechanism, which includes: a circuit board, which is provided with a mode configuration circuit; it is characterized in that it further includes a plurality of arch film elements and an option button, and these arch film elements are arranged on the circuit at intervals On the board, corresponding to the mode configuration circuit of the circuit board, the option button is rotatably set on the circuit board, the option button presses the arch membrane elements, and the arch membrane elements communicate with the corresponding mode configuration circuit , a sphere is extended from the option button, and the sphere corresponds to the arch elements. 2. The mode switching mechanism according to claim 1, further comprising a frame, which is tiltably arranged between the option button and the circuit board, and is provided with the arch membrane elements The corresponding convex column. 3. The mode switching mechanism as claimed in claim 1, wherein the arch elements comprise at least one arch key. 4. The mode transfer mechanism according to claim 3, wherein the arch membrane key is made of metal material. 5. The mode switching mechanism as claimed in claim 1, wherein the arch elements comprise at least one arch key switch. 6. The mode switching mechanism as claimed in claim 5, wherein the arch membrane key switch is a surface-adhesive switch.

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