CN218333546U - Miniature double-loop dustproof switch - Google Patents

Abstract

The utility model discloses a miniature two return circuits dustproof switch, which comprises a housin, a pedestal, the terminal subassembly, the converting group, drive assembly and according to sincere, the one end of casing is equipped with and holds the chamber, one side then is equipped with presses down the passageway, the base lid fits and holds the chamber, and be equipped with at least two sets of terminal subassemblies on the base, converting group shell fragment and rotor, the quantity of rotor is the same with the quantity of terminal subassembly, and the package is moulded between the rotor of settlement quantity and is connected, and form the insulating part, drive assembly includes actuating button and spring, and set up respectively in pressing down the passageway, one end according to sincere then sets up and holding chamber and rotor butt, the other end penetrates to pressing down passageway and actuating button butt. The utility model discloses an install drive assembly in the passageway of pressing of casing one side to this side direction of realizing the switch is pressed, and make the overall structure of switch simple, reasonable in design, and adopt the package to mould between the rotor of settlement quantity and connect the formation insulating part, can realize the switching of multiunit signal, and independent control.

Description

Miniature two return circuits dustproof switch

Technical Field

The utility model relates to the technical field of switches, in particular to miniature two return circuits dustproof switch.

Background

The microswitch is a contact mechanism which performs a switching operation by a predetermined stroke and a predetermined force, and is covered with a case, and a driving lever is provided outside the microswitch.

At present, when the existing double-circuit switch on the market is pressed, the double-circuit switch is generally pressed from the top, and the switching of the internal switch has no independence, so that the synchronous switching can not be realized in the switching process; therefore, in order to solve the above problems, a dual-circuit switch which can be pressed from the side surface, is sensitive in conversion and high in synchronism is designed in the market demand, and is mainly applied to the fields of electronic devices such as automobile electronic control, instruments and meters, household appliances and the like.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a structural design is reasonable, the miniature two return circuits dustproof switch of ability synchronous switch.

For solving the above technical problem, the utility model discloses can adopt following technical scheme to realize:

a miniature dual circuit dust-tight switch comprising:

the pressing device comprises a shell, a pressing channel and a pressing mechanism, wherein one end of the shell is provided with an accommodating cavity, and one side of the shell is provided with the pressing channel;

the base covers the accommodating cavity, at least two groups of terminal assemblies are arranged on the base, and each terminal assembly comprises a public terminal, a normally closed terminal and a normally open terminal;

the conversion group is arranged in the accommodating cavity and comprises elastic sheets and moving sheets, the number of the moving sheets is the same as that of the terminal assemblies, the moving sheets correspond to one another, the moving sheets with the set number are connected in a plastic coating mode, an insulating piece is formed, one end of each elastic sheet abuts against the base, the other end of each elastic sheet abuts against the insulating piece, one end of each moving sheet is connected with the common terminal, and the other end of each moving sheet is in switching connection with the normally closed terminal and the normally open terminal;

the driving assembly is arranged in the pressing channel and comprises a driving button and a spring, one end of the spring is abutted against the driving button, and the other end of the spring is abutted against the inner wall of the pressing channel;

and one end of the pressing latch is arranged in the accommodating cavity and is abutted against the movable plate, and the other end of the pressing latch penetrates into the pressing channel and is abutted against the driving button.

In one embodiment, the public terminal, the normally closed terminal and the normally open terminal are wrapped and molded on the base, a groove used for being abutted against the elastic sheet is formed in the base, a hook groove connected with the moving sheet is formed in the public terminal, and one end of the normally closed terminal and one end of the normally open terminal are vertically arranged.

In one embodiment, one surface of the driving button is provided with a chamfer surface, and when the driving button is pressed, the chamfer surface of the driving button presses the press latch.

In one embodiment, two side walls of the pressing channel are respectively provided with a button sliding groove, a limiting groove is formed in the button sliding groove, two sides of the driving button are provided with button sliding blocks corresponding to the button sliding grooves, and the button sliding blocks are provided with limiting blocks corresponding to the limiting grooves.

In one embodiment, one end of the driving button is a pressing end, the other end of the driving button is provided with a spring limiting column, and one end of the spring is sleeved on the spring limiting column.

In one embodiment, the pressing device is provided with pressing heads for pressing the movable pieces, and the number of the pressing heads is the same as that of the movable pieces and corresponds to that of the movable pieces.

In one embodiment, the housing is provided with a clamping groove, the base is provided with a clamping block corresponding to the clamping groove, and the clamping block is clamped into the clamping groove, so that the base is connected with the housing, and the accommodating cavity is covered.

Has the advantages that:

1. the lateral pressing switch is reasonable in design, a pressing channel is formed in one side of the shell, the driving button is installed in the pressing channel, and therefore the lateral pressing switch is formed; when the driving button is loosened, the driving button and the pressing pawl can reset under the acting force of the spring and the elastic sheet, the moving sheet is contacted with the normally closed terminal again, the signal is switched again, finally, the switch is pressed in a lateral direction, and the structure is simple and reasonable.

2. The synchronous conversion, set up two kinds of terminal assemblies on the base, and set up the moving plate of corresponding quantity, make moving plate and terminal assembly one-to-one, will set for and mould between the moving plate of quantity and connect again, when drive button orders about and presses sincerely to the moving plate and press, can make the moving plate of setting for quantity move simultaneously, and realize the synchronous conversion of multiunit signal with this, and because adopt the plastic-coated connection between the moving plate of setting for quantity, form the insulating part, consequently, can not cause the interference each other, thereby can make independently control between terminal assembly and the moving plate that corresponds.

Drawings

FIG. 1 is an exploded view of the miniature dual-circuit dust-proof switch of the present invention;

FIG. 2 is a schematic view of the assembly structure of the miniature dual-circuit dust-proof switch of the present invention;

FIG. 3 is a cross-sectional view of the micro dual-circuit dust-proof switch of the present invention;

FIG. 4 is a schematic view of the housing structure of the micro dual-circuit dust-proof switch of the present invention;

FIG. 5 is a schematic view of a switching group structure of the micro dual-circuit dust-proof switch of the present invention;

FIG. 6 is a schematic structural view of a base and a terminal assembly of the micro dual-circuit dust-proof switch of the present invention;

FIG. 7 is a schematic view of the structure of the driving button of the miniature dual-circuit dustproof switch of the present invention;

fig. 8 is a schematic diagram of a pressing structure of the micro dual-circuit dustproof switch of the present invention.

As shown in the attached drawings:

100. a housing; 110. an accommodating chamber; 120. pressing the channel; 130. a button sliding groove;

140. a limiting groove; 150. a card slot;

200. a base; 210. a groove; 220. a clamping block;

300. a terminal assembly; 310. a common terminal; 311. hooking a groove; 320. a normally closed terminal; 330. a normally open terminal;

400. converting the group; 410. a spring plate; 420. a moving plate; 430. an insulating member;

500. a drive assembly; 510. a drive button; 511. a chamfer plane; 512. a button slider; 513. a limiting block; 514. a spring limiting post; 520. a spring;

600. pressing; 610. a pressing head.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all 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. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 5, a micro dual-circuit dustproof switch includes:

a housing 100, wherein one end of the housing 100 is provided with an accommodating cavity 110, and one side of the housing 100 is provided with a pressing channel 120;

the base 200 is covered in the accommodating cavity 110, at least two groups of terminal assemblies 300 are arranged on the base 200, and each terminal assembly 300 comprises a common terminal 310, a normally closed terminal 320 and a normally open terminal 330;

the conversion group 400 is arranged in the accommodating cavity 110 and comprises spring plates 410 and moving plates 420, the number of the moving plates 420 is the same as that of the terminal assemblies 300, the moving plates 420 correspond to one another, the set number of the moving plates 420 are connected in a plastic-coated mode, an insulating piece 430 is formed, one end of each spring plate 410 abuts against the base 200, the other end of each spring plate abuts against the insulating piece 430, one end of each moving plate 420 is connected with the common terminal 310, and the other end of each moving plate 420 is in switching connection with the normally-closed terminal 320 and the normally-open terminal 330;

a driving assembly 500 disposed in the pressing channel 120 and including a driving button 510 and a spring 520, wherein one end of the spring 520 abuts against the driving button 510, and the other end abuts against the inner wall of the pressing channel 120;

and a pressing latch 600, wherein one end of the pressing latch 600 is arranged in the accommodating cavity 110 and is abutted with the movable plate 420, and the other end of the pressing latch 600 penetrates into the pressing channel 120 and is abutted with the driving button 510.

Specifically, in the initial state of the switch in this embodiment, one end of the moving plate 420 contacts with the normally closed terminal 320 and is disconnected from the normally open terminal 330 through the resilience of the elastic sheet 410, when a signal needs to be switched, the driving button 510 is pressed, and when the driving button 510 slides, the pressing portion 600 is pressed, so that the pressing portion 600 presses the moving plate 420, and the pressed end of the moving plate 420 is disconnected from the normally closed terminal 320 and is contacted with the normally open terminal 330, thereby realizing the switching of the signal; when the actuating button 510 is released, the actuating button 510 is reset under the elastic force of the spring 520, and meanwhile, one end of the moving plate 420 tilts upward under the resilience of the resilient piece 410 and pushes up the pressing part 600 to reset, while the upward end of the moving plate 420 contacts with the normally closed terminal 320 again and is disconnected with the normally open terminal 330. In addition, the pressing channel 120 is formed at one side of the housing 100, and the driving button 510 and the spring 520 are respectively disposed in the pressing channel 120, so that the lateral pressing of the switch is formed, and finally, the overall structure of the switch is simple, the design is reasonable, and the lateral pressing is realized.

In addition, the terminal assemblies 300 in this embodiment are provided with two sets, the rotor plates 420 are also provided with two sets, and the two sets of rotor plates 420 correspond to the two sets of terminal assemblies 300 one by one, the two sets of terminal assemblies 300 are arranged on the base 200 side by side, and the two sets of rotor plates 420 are connected by plastic coating, so as to form the insulating member 430, no interference is generated between the two sets of rotor plates 420 through the insulating member 430, when the driving button 510 is pressed, the driving button 510 presses the pressing pawl 600 when sliding, and the pressing pawl 600 respectively presses the two sets of rotor plates 420, so as to switch signals between the two sets of rotor plates 420 and the corresponding two sets of terminal assemblies 300, so as to form synchronous switching, and the insulating member 430 can make the two sets of rotor plates 420 have no interference, so that each set of rotor plates 420 and the corresponding terminal assemblies 300 can be controlled independently.

Certainly, the number of the terminal assemblies 300 and the number of the moving plates 420 are not limited to two, and more sets of terminal assemblies 300 may be provided, where the number of the moving plates 420 corresponds to the number of the terminal assemblies 300, and then the set number of the moving plates 420 are encapsulated to form the insulating member 430, so that the set number of the moving plates 420 are not interfered, that is, two sets of signals can be synchronously switched, and are independent of each other.

Referring to fig. 6, in order to improve the sensitivity and stability of the switch, in the present embodiment, the common terminal 310, the normally closed terminal 320, and the normally open terminal 330 are molded on the base 200, and the base 200 is provided with a groove 210 for abutting against the elastic sheet 410, the common terminal 310 is provided with a hook slot 311 connected to the moving sheet 420, and one end of the normally closed terminal 320 and one end of the normally open terminal 330 are disposed up and down.

When the common terminal 310, the normally closed terminal 320, the normally open terminal 330, the spring plate 410 and the moving plate 420 are assembled, the common terminal 310, the normally closed terminal 320 and the normally open terminal 330 are respectively coated on the base 200, one end of the normally closed terminal 320 and one end of the normally open terminal 330 are arranged up and down, one end of the moving plate 420 is hooked with the hook groove 311 of the common terminal 310, so that the connection between the moving plate 420 and the common terminal 310 is more stable, the other end of the moving plate 420 is arranged between the normally closed terminal 320 and the normally open terminal 330, when the moving plate 420 is pressed or reset, the moving plate 420 is switched with the normally closed terminal 320 and the normally open terminal 330, the structural design of the switch is reasonable, one end of the spring plate 410 is abutted in the groove 210 of the base 200, the other end of the spring plate is abutted on the insulating member 430, after the driving button 510 is loosened, the spring plate 410 can be reset upwards under the effect of the resilience force, and the pressing 600 is driven to reset, finally, the overall operation of the switch is sensitive, and the stability between each component is better.

Referring to fig. 7, in order to better press the driving button, in this embodiment, a chamfered surface 511 is disposed on one surface of the driving button 510, when the driving button 510 is pressed, the driving button 510 slides in the pressing channel 120, and during the sliding process, the chamfered surface 511 of the driving button 510 presses the latch 600, after the driving button 510 is released, the driving button 510 slides in the reverse direction under the action of the spring 520, and the chamfered surface 511 is separated from the latch 600, and the latch 600 can be pushed up and reset by the resilience of the resilient piece 410, so that the switch has a reasonable structural design.

Referring to fig. 4 and 7, in order to facilitate assembling and pressing the driving button 510, button sliding grooves 130 are respectively formed on two side walls of the pressing channel 120, a limiting groove 140 is formed in the button sliding groove 130, button sliding blocks 512 are formed on two sides of the driving button 510, and a limiting block 513 is formed on the button sliding blocks 512.

In addition, one end of the driving button 510 is a pressing end, the other end is provided with a spring limiting post 514, and one end of the spring 520 is sleeved on the spring limiting post 514.

Specifically, when the driving button 510 is installed, the button sliding block 512 is inserted into the button sliding groove 130, so that the driving button 510 can slide in the pressing channel 120, one end of the spring 520 is sleeved on the spring limiting post 514 at the end of the driving button 510 for driving the driving button 510 to reset, and the spring 520 can be prevented from moving through the spring limiting post 514, so that the driving button 510 is more sensitive and smooth when resetting, and meanwhile, in order to prevent the driving button 510 from being separated from the pressing channel 120 when resetting, therefore, after the button sliding block 512 is inserted into the button sliding groove 130, the limiting block 513 can be clamped into the limiting groove 140, the driving button 510 is limited through the limiting groove 140 and the limiting block 513, so that the driving button 510 is prevented from being separated from the pressing channel 120 when resetting, and finally, the driving button 510 is conveniently installed into the pressing channel 120, and the driving button 510 is convenient to slide in the pressing channel 120, so that the structural design of the switch is reasonable.

Referring to fig. 8, in the present embodiment, two sets of terminal assemblies 300 and moving plates 420 are respectively disposed, so when the pressing unit 600 presses the moving plates 420, two sets of moving plates 420 need to be pressed simultaneously, and for convenience, the moving plates 420 are respectively pressed, therefore, the pressing unit 600 is provided with pressing heads 610 for pressing the moving plates 420, and the number of the pressing heads 610 is the same as that of the moving plates 420, and corresponds to one another, so that the moving plates 420 of the set number can be pressed simultaneously, and thus, the synchronous conversion of signals can be realized.

Finally, please refer to fig. 4 and fig. 6, in order to facilitate the disassembly and assembly of the switch, therefore, the housing 100 is provided with the clamping groove 150, meanwhile, the clamping block 220 is arranged on the base 200, when the assembly is performed, the clamping block 220 is clamped into the clamping groove 150, so that the base 200 is connected with the housing 100, the accommodating cavity 110 is covered, when the disassembly is needed for maintenance, the clamping block 220 is separated from the clamping groove 150, so that the base 200 can be separated from the housing 100, and the disassembly and assembly of the whole switch are facilitated.

In addition, the switch in the embodiment can be arranged into a micro-miniature structure, so that the switch can be conveniently applied to various occasions, and the practicability of the switch is improved; and the receiving cavity 110 can be effectively protected from dust by adopting the connecting structure of the driving assembly 500 and the pressing part 600.

The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. The present invention can be smoothly implemented by those skilled in the art according to the drawings and the above description; however, those skilled in the art should understand that the equivalent embodiments of the present invention are equivalent embodiments of the present invention, and that the changes, modifications and evolutions made by the above-disclosed technical contents are not departed from the technical scope of the present invention; meanwhile, any changes, modifications, evolutions, etc. of the above embodiments, which are equivalent to the actual techniques of the present invention, still belong to the protection scope of the technical solution of the present invention.

Claims (7)

1. The utility model provides a miniature two return circuits dustproof switch which characterized in that includes:

the pressing device comprises a shell, a pressing channel and a pressing mechanism, wherein one end of the shell is provided with an accommodating cavity, and one side of the shell is provided with the pressing channel;

the base covers the accommodating cavity, and two groups of terminal assemblies are arranged on the base and comprise a common terminal, a normally closed terminal and a normally open terminal;

the conversion group is arranged in the accommodating cavity and comprises elastic sheets and moving sheets, the number of the moving sheets is the same as that of the terminal components, the moving sheets correspond to one another, the set number of the moving sheets are connected in a plastic wrapping mode, an insulating part is formed, one end of each elastic sheet abuts against the base, the other end of each elastic sheet abuts against the insulating part, one end of each moving sheet is connected with the common terminal, and the other end of each moving sheet is in switching connection with the normally closed terminal and the normally open terminal;

the driving assembly is arranged in the pressing channel and comprises a driving button and a spring, one end of the spring is abutted against the driving button, and the other end of the spring is abutted against the inner wall of the pressing channel;

and one end of the pressing part is arranged in the accommodating cavity and is abutted against the movable plate, and the other end of the pressing part penetrates into the pressing channel and is abutted against the driving button.

2. The miniature dual-circuit dust-proof switch of claim 1, wherein: public terminal, normally closed terminal and normally open terminal package are moulded on the base, and are equipped with the recess that is used for carrying out the butt with the shell fragment on the base, are equipped with the groove of colluding that is connected with the rotor on the public terminal, and normally closed terminal and normally open terminal wherein one end then set up from top to bottom.

3. The miniature dual-circuit dust-proof switch of claim 1, wherein: one side of the driving button is provided with a diagonal plane, and when the driving button is pressed, the diagonal plane of the driving button can press the pressing part.

4. The miniature dual-circuit dust-proof switch of claim 1, wherein: the both sides wall of pressing the passageway is equipped with the button sliding tray respectively, and has seted up the spacing groove in the button sliding tray, then is equipped with the button sliding block that corresponds with the button sliding tray in the both sides of drive button to be equipped with the stopper that corresponds with the spacing groove on the button sliding block.

5. The miniature dual-circuit dust-proof switch of claim 1, wherein: one end of the driving button is a pressing end, the other end of the driving button is provided with a spring limiting post, and one end of the spring is sleeved on the spring limiting post.

6. The miniature dual-circuit dust-proof switch of claim 1, wherein: the pressing heads used for pressing the moving pieces are arranged on the pressing bodies, and the number of the pressing heads is the same as that of the moving pieces and corresponds to that of the moving pieces one by one.

7. The miniature dual-circuit dust-proof switch of claim 1, wherein: the casing is equipped with the draw-in groove, then is equipped with the fixture block that corresponds with the draw-in groove on the base, goes into the fixture block card to the draw-in groove in, makes base and casing be connected to cover holding the chamber and close.

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