CN215069740U

CN215069740U - Intelligent switch

Info

Publication number: CN215069740U
Application number: CN202121076001.6U
Authority: CN
Inventors: 刘海; 朱雪丰; 易庆; 孙全周; 齐宇
Original assignee: Siemens Ltd China
Current assignee: Siemens Ltd China
Priority date: 2021-05-19
Filing date: 2021-05-19
Publication date: 2021-12-07
Anticipated expiration: 2031-05-19

Abstract

The utility model provides an intelligent switch, it includes panel, base and sets up in the circuit board of base, and intelligent switch still includes a baffle and one or more elasticity button. The baffle is arranged between the panel and the circuit board and used for shielding the circuit board. One or more elastic keys are arranged between the circuit board and the partition board, and each elastic key is arranged corresponding to a pair of connecting contact points on the circuit board. Each elastic key comprises an insulating key body and a conducting layer. The insulating key body can cooperate the baffle to shelter from the circuit board, and the insulating key body corresponds with a baffle through-hole. The conducting layer is arranged on the insulating key body, and when the elastic key is pressed down, the conducting layer can contact and conduct the pair of connecting contacts. The utility model discloses intelligence switch has increased creepage distance and electric clearance between circuit board conductive part and the equipment protection interface, has improved product security, can also shelter from dirty preventing that it from getting into the circuit board, extension intelligence switch's life.

Description

Intelligent switch

Technical Field

The utility model relates to a low-voltage electrical field, especially an intelligent switch.

Background

At present, the mainstream domestic intelligent switch in the market comprises a rocker type intelligent switch and a button type intelligent switch. Among them, the button type intelligent switch is generally divided into: capacitive touch designs and designs for soldering electronic switches on a circuit board. Both of these approaches, however, have certain drawbacks. The capacitive touch design does not allow for a good pressing feel. A large gap is easily formed between the welded electronic switch and a structural member, so that the key-type intelligent switch adopting the design has poor safety and dust resistance, and has higher requirements on an electrical gap and a creepage distance particularly under the condition that the electronic switch on a circuit board or a conductive part nearby the electronic switch is connected with strong electricity.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an intelligent switch, it has better security and longer life.

The utility model provides an intelligent switch, it include panel, base and set up in the circuit board of base, intelligent switch still includes a baffle and one or more elasticity button. The baffle set up in between the panel with the circuit board for shelter from the circuit board, be provided with the baffle through-hole on the baffle. One or more elastic keys are arranged between the circuit board and the partition board, and each elastic key is arranged corresponding to a pair of connecting contact points on the circuit board. Each elastic key comprises an insulating key body and a conducting layer. The insulation key body can be matched with the partition plate to shield the circuit board, and corresponds to one partition plate through hole. The conducting layer is arranged on the insulating key body, and when the elastic key is pressed down, the conducting layer contacts and conducts the pair of connecting contacts. The utility model discloses an intelligent switch, through the cooperation of elasticity button and baffle, increased creepage distance and the electric clearance in order to improve the security of product between circuit board conductive parts and the equipment protection interface, can also shelter from dirty and prevent that it from getting into the inside circuit board of intelligent switch, can prolong intelligent switch's life.

In another exemplary embodiment of the intelligent switch of the present invention, an accommodating space with an opening at the bottom is formed inside the insulating key main body, the top of the insulating key main body is provided with a pressing portion, the bottom of the pressing portion abuts against the circuit board, and the insulating key main body can deform when being pressed; the conducting layer is arranged on the surface of the pressing part facing the opening, and the conducting layer and the pair of connecting contacts corresponding to the elastic keys are arranged oppositely. The utility model discloses an elastic button design can make intelligent switch have great button stroke, improves and presses down and feels, and has increased creepage distance and electric clearance between circuit board conductive part and the equipment protection interface.

The utility model discloses in the still another illustrative embodiment of intelligence switch, the bottom of insulating button main part is provided with an annular portion of supporting, insulating button main part passes through annular portion of supporting support in the circuit board.

In still another exemplary embodiment of the present invention, the annular abutting portion is positioned on the positioning hole of the circuit board by a positioning column.

The utility model discloses in another illustrative embodiment of intelligence switch, each press the splenium to stretch out one the baffle through-hole, the external diameter that cyclic annular supports the portion is greater than the diameter of baffle through-hole has increased creepage distance and electric clearance between circuit board conductive part and the equipment protection interface, can also prevent that the elasticity button from being extracted from the baffle through-hole.

In yet another illustrative embodiment of the present invention, the annular abutting portion faces the panel direction protrusion to form a key flange, further increasing creepage and clearance.

The utility model discloses in still another illustrative embodiment of intelligence switch, on the baffle through-hole edge part branch to the protrusion of circuit board direction forms the baffle flange, the external diameter of baffle flange is less than key flange's internal diameter, the baffle flange can with key flange cooperation is with right the elasticity button carries on spacingly, has further increased creepage distance and electric clearance and has further avoided the elasticity button to be extracted from the baffle through-hole.

The utility model discloses in another illustrative embodiment of intelligence switch, go to on the key flange one side of baffle flange is provided with a direction inclined plane, can realize the quick installation location between elasticity button and the baffle, improves production efficiency.

The utility model discloses in the still another illustrative embodiment of intelligence switch, cyclic annular butt portion orientation symmetric distribution has a plurality of air channels on the face of circuit board, can ventilate when pressing the splenium motion.

The utility model discloses in another illustrative embodiment of intelligence switch, the insulating button main part still includes an elastic connection portion, elastic connection portion connects press the splenium with cyclic annular support portion press the splenium to during the motion of circuit board direction, elastic connection portion can produce elastic deformation and do press the splenium to provide reset force.

In yet another illustrative embodiment of the present invention, the pressing portion faces the opening, and a protrusion is disposed on the face of the pressing portion, and the conductive layer is disposed in the protrusion.

The utility model discloses in another illustrative embodiment of intelligence switch, correspond on the panel the position of elasticity button still is provided with the panel button, the panel button orientation be provided with the arch on the face of elasticity button, the edge of panel button is provided with the elastic arm. The design can better protect the elastic keys and the circuit board and improve the pressing hand feeling of the keys.

Drawings

The following drawings are only schematic illustrations and explanations of the present invention, and do not limit the scope of the present invention.

Fig. 1 is a schematic diagram illustrating an exploded structure of the intelligent switch of the present invention.

Fig. 2 is a schematic structural diagram of the elastic key shown in fig. 1 from another view angle.

Fig. 3 is a sectional view for explaining the intelligent switch of the present invention.

Wherein the reference numbers are as follows:

10 panel 41 insulation key main body 4133 positioning column

Elastic connection part of opening 414 of 11-panel button 411

20 base 412 pressing part 42 conductive layer

30 circuit board 4121 bump 50 spacer

31 connecting contact 413 annular abutment 51 diaphragm through hole

32 position hole 4131 key flange 52 spacer flange

40 elastic key 4132 vent groove

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings, wherein the same reference numerals in the drawings denote the same components or similar components.

"exemplary" means "serving as an example, instance, or illustration" herein, and any illustration, embodiment, or steps described as "exemplary" herein should not be construed as a preferred or advantageous alternative.

For the sake of simplicity, only the parts relevant to the present invention are schematically shown in the drawings, and they do not represent the actual structure as a product. In addition, for simplicity and clarity of understanding, only one of the components having the same structure or function is schematically illustrated or labeled in some of the drawings.

In this document, "one" means not only "only one" but also a case of "more than one". The "plurality" herein includes the case of two. In this document, "first", "second", and the like are used only for distinguishing one from another, and do not indicate their degree of importance, order, and the like.

Referring to fig. 1, the intelligent switch includes a panel 10, a spacer 50, an elastic button 40, a circuit board 30, and a base 20. The smart switch may be provided with one, two, three or another number of switches, each switch corresponding to one of the resilient keys 40. Wherein, the housing of the panel 10 and the base 20 can cooperate with each other to form the housing of the intelligent switch. The circuit boards 30 are disposed in the base 20, and one or more of the circuit boards 30 may be designed according to circumstances. For example, a power supply circuit board and a control circuit board may be provided, or the power supply circuit board and the control circuit board may be integrated into one circuit board. The circuit board 30 is provided with connection contacts 31 corresponding to the switches, and each pair of connection contacts 31 is provided corresponding to one of the elastic buttons 40. The connection contacts 31 may take the form of circular copper foil contacts, also comb-shaped copper foil lines or other forms. The two connection contacts 31 paired on the circuit board 30 are disconnected from each other, and when the two connection contacts 31 are conducted with each other, an on/off command can be sent to a control chip in the intelligent switch, and the control chip controls the corresponding relay to operate according to the on/off command to realize an on/off function.

The partition 50 is disposed between the panel 10 and the circuit board 30, and the partition 50 is used for shielding the circuit board 30. The partition 50 is provided with partition through holes 51, and one partition through hole 51 corresponds to one elastic button 40. The elastic button 40 is disposed between the partition 50 and the circuit board 30. Each of the elastic keys 40 includes an insulating key body 41 and a conductive layer 42. The insulating key body 41 may be made of soft rubber such as silica gel and rubber. The insulating key body 41 can be matched with the partition plate 50 to shield the circuit board 30, the insulating key body 41 extends into the partition plate through hole 51, and the top of the insulating key body 41 can be slightly lower than, flush with or higher than the upper surface of the partition plate 50. The conductive layer 42 is disposed on the insulating key body 41. When the insulating key main body 41 is not pressed, the conductive layer does not contact the connection contact 31; when the elastic button 40 is pressed, the conductive layer 42 contacts and conducts the pair of connection contacts 31 to input an on/off command to the control chip. The insulating key body 41 is matched with the partition plate 50, so that the circuit board 30 can be shielded, particularly the part of the circuit board 30 connected with strong electricity can be shielded, the creepage distance and the electric clearance between the conductive parts of the circuit board and the equipment protection interface are increased, and the safety of the product is improved; in addition, can also shelter from dirty and prevent its inside circuit board that gets into intelligent switch, extension intelligent switch's life is pleasing to the eye moreover. The defects of safety problem and poor appearance caused by a large gap between an electronic switch and a structural member in the existing intelligent key switch are overcome.

The insulating key main body 41 of the elastic key 40 can be deformed when pressed. The insulating key body 41 forms a receiving space with a bottom opening 411 therein. The insulating key body 41 includes one pressing portion 412 provided at the top thereof, an annular abutting portion 413 provided at the bottom thereof, and an elastic connecting portion 414 connecting the pressing portion 412 and the annular abutting portion 413. The insulating key body 41 abuts against the circuit board 30 through the annular abutting portion 413. When the pressing portion 412 moves toward the circuit board 30, the elastic connecting portion 414 can elastically deform and provide a reset force to the pressing portion 412.

Since the annular abutting portion 413, the elastic connecting portion 414 and the pressing portion 412 of the insulating key body 41 are all insulated, the creepage distance between the conductive parts of the circuit board and the equipment protection interface is long. The design of this elastic button can also make intelligent switch have great button stroke, improves and presses and feels. When the annular abutting portion 413 is designed, the outer diameter thereof may be set to be larger than the diameter of the partition through hole 51, so that the creepage distance and the electric clearance can be further increased, and the elastic push button can be prevented from being pulled out from the partition through hole.

The panel 10 may further have a panel key 11 at a position corresponding to the elastic key 40. The surface of the panel key 11 facing the elastic key 40 is provided with a bulge, and the edge of the panel key 11 is provided with an elastic arm. A panel button 11 is disposed above a resilient button 40, which can be positioned at the position of the through hole of the panel 10 by a resilient arm. When the panel key 11 is pressed, the protrusion on the panel key 11 abuts against the pressing portion 412 of the elastic key 40 and moves toward the circuit board 30. The panel key 11 elastic arm can provide a reset force for the panel key 11. The design can better protect the elastic keys and the circuit board and improve the pressing hand feeling of the keys.

The conductive layer 42 is provided on a surface of the pressing portion 412 facing the opening 411, and the conductive layer 42 is provided to face the pair of connection contacts 31 corresponding to the elastic key 40. A protrusion 4121 is disposed on the surface of the pressing portion 412 of the insulating key body 41 facing the opening 411, and the conductive layer 42 may be disposed on the protrusion 4121.

The annular abutting portion 413 of the insulating key body 41 may further be provided with a positioning post 4133, and the circuit board 30 is provided with a corresponding positioning hole 32. The insulating key main body 41 can be positioned on the positioning hole 32 of the circuit board 30 by the positioning column 4133 to position the insulating key main body 41 at the region of the circuit board 30 where the connection contacts are located.

A plurality of ventilation grooves 4132 are symmetrically distributed on the surface of the annular abutting part 413 of the insulating key body 41 facing the circuit board 30, and can ventilate when the pressing part moves.

The partition through hole 51, the elastic key 40 and the connection contact 31 are correspondingly arranged. The conductive layer 42 on the insulating key main body 41 is disposed opposite to the connection contact 31.

The annular abutting portion 413 of the insulating key body 41 is formed to project toward the panel 10 to form a key flange 4131. The edge part of the partition through hole 51 of the partition 50 protrudes toward the circuit board 30 to form a partition flange 52. The outer diameter of the spacer flange 52 is smaller than the inner diameter of the key flange 4131. The spacing of the resilient key 40 is provided by the nesting of the spacer flange 52 and key flange 4131. Specifically, when the elastic button 40 is pulled outward, the button flange 4131 can abut against the partition flange 52 to prevent the elastic button 40 from being pulled out. Further, the key flange 4131 of the spacer flange 52 is engaged, enabling a further creepage distance. The key flange 4131 is provided with a guide slope on a side facing the partition flange 52, which enables quick installation and positioning between the elastic key 40 and the partition 50 to improve production efficiency.

It should be understood that although the present description has been described in terms of various embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and those skilled in the art will recognize that the embodiments described herein may be combined as suitable to form other embodiments, as will be appreciated by those skilled in the art.

The above list of details is only for the practical examples of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications, such as combinations, divisions or repetitions of the features, which do not depart from the technical spirit of the present invention, should be included in the scope of the present invention.

Claims

1. An intelligent switch, comprising a panel (10), a base (20) and a circuit board (30) arranged on the base (20), characterized in that the intelligent switch further comprises:

a partition (50) arranged between the panel (10) and the circuit board (30) and used for shielding the circuit board (30), wherein a partition through hole (51) is arranged on the partition (50); and the number of the first and second groups,

one or more elastic keys (40) disposed between the circuit board (30) and the partition (50), each elastic key (40) being disposed in correspondence with a pair of connection contacts (31) on the circuit board (30), each elastic key (40) comprising:

an insulating key body (41) capable of cooperating with the partition (50) to shield the circuit board (30), the insulating key body (41) corresponding to one of the partition through holes (51); and

and a conductive layer (42) provided on the insulating key main body (41), wherein when the elastic key (40) is pressed, the conductive layer (42) contacts and conducts the pair of connection contacts (31).

2. The intelligent switch of claim 1, wherein:

an accommodating space with an opening (411) at the bottom is formed in the insulating key body (41), a pressing part (412) is arranged at the top of the insulating key body (41), the bottom of the pressing part abuts against the circuit board (30), and the insulating key body (41) can deform when being pressed;

the conductive layer (42) is disposed on a surface of the pressing portion (412) facing the opening (411), and the conductive layer (42) is disposed opposite to the pair of connection contacts (31) corresponding to the elastic key (40).

3. The intelligent switch according to claim 2, wherein the bottom of the insulating key body (41) is provided with an annular abutting portion (413), and the insulating key body (41) abuts against the circuit board (30) through the annular abutting portion (413).

4. The intelligent switch according to claim 3, wherein the annular abutment (413) is positioned on a positioning hole (32) of the circuit board (30) by a positioning post (4133).

5. The intelligent switch according to claim 3, wherein each pressing portion (412) protrudes out of one diaphragm through hole (51), and the outer diameter of the annular abutting portion (413) is larger than the diameter of the diaphragm through hole (51).

6. The intelligent switch according to claim 5, wherein the annular abutment (413) protrudes towards the panel (10) to form a key flange (4131).

7. The intelligent switch according to claim 6, wherein the edge portion of the partition through hole (51) on the partition (50) protrudes toward the circuit board (30) to form a partition flange (52), the outer diameter of the partition flange (52) is smaller than the inner diameter of the key flange (4131), and the partition flange (52) can cooperate with the key flange (4131) to limit the position of the elastic key (40).

8. The intelligent switch according to claim 7, wherein the key flange (4131) is provided with a guide slope on a side facing the partition flange (52).

9. The intelligent switch according to claim 3, wherein the annular abutment (413) has a plurality of ventilation grooves (4132) symmetrically distributed on its face facing the circuit board (30).

10. The intelligent switch according to claim 3, wherein the insulating key body (41) further comprises an elastic connecting portion (414), the elastic connecting portion (414) connects the pressing portion (412) and the annular abutting portion (413), and when the pressing portion (412) moves toward the circuit board (30), the elastic connecting portion (414) can elastically deform and provide a reset force to the pressing portion (412).

11. The intelligent switch according to claim 2, wherein a protrusion (4121) is disposed on a surface of the pressing portion (412) facing the opening (411), and the conductive layer (42) is disposed on the protrusion (4121).

12. The intelligent switch according to claim 2, wherein a panel key (11) is further disposed on the panel (10) at a position corresponding to the elastic key (40), a protrusion is disposed on a surface of the panel key (11) facing the elastic key (40), and an elastic arm is disposed at an edge of the panel key (11).