CN218333534U

CN218333534U - Subminiature double-loop sealing switch

Info

Publication number: CN218333534U
Application number: CN202222352539.6U
Authority: CN
Inventors: 宋明华; 刘二军; 马家骏
Original assignee: Huizhou Greetech Electronics Co ltd
Current assignee: Huizhou Greetech Electronics Co ltd
Priority date: 2022-09-05
Filing date: 2022-09-05
Publication date: 2023-01-17
Anticipated expiration: 2032-09-05

Abstract

The utility model discloses a subminiature two-circuit sealing switch, including casing, base, terminal subassembly, conversion group and according to sincere, the base closes with the casing lid and is connected, forms airtight space, is equipped with two sets of terminal subassemblies on the base, and the conversion group sets up in airtight space to including shell fragment and rotor, the quantity of rotor is the same with the quantity of terminal subassembly, and the one-to-one, and the package is moulded between the rotor of settlement quantity and is connected, and forms the insulating part, locate in airtight space with the rotor butt according to sincere one end, the other end then runs through the casing and outwards extends. The utility model discloses a press sincere to making according to sincere acting on the rotor, switching over the signal with this, and the equipment part of switch is few, simple structure, reasonable in design, simultaneously, through the package between the rotor that will set for quantity mould the connection and form the insulating part, thereby can realize the synchronous switching of two sets of signals, and independent control, simultaneously, through the whole sealed of airtight space can realize the switch, make the switch possess waterproof performance.

Description

Subminiature double-loop sealing switch

Technical Field

The utility model relates to the technical field of switches, in particular to subminiature two-circuit sealing 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 drive lever is provided outside the microswitch.

At present, the internal structure of the existing double-loop switch on the market is complex, the switch conversion is not independent, and the synchronous conversion cannot be realized in the conversion process; therefore, aiming at the problems, a double-loop switch which has a waterproof function, is sensitive in conversion and high in synchronism is designed according to market demands, and is mainly applied to the field of electronic equipment 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 simple structure, reasonable in design, ability synchronous switch, and possess waterproof function's subminiature two return circuits sealing switch.

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

a subminiature dual-circuit sealed switch, comprising:

a housing;

the base is connected with the shell in a covering mode and forms a closed space, 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 closed space 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 set number of the moving sheets are connected in a plastic wrapping mode and form an insulating piece, 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;

one end of the pressing device is arranged in the closed space and is abutted against the moving plate, and the other end of the pressing device penetrates through the shell and extends outwards.

In one embodiment, after the base and the shell are covered, a sealing groove is formed, and a sealing glue is added in the sealing groove.

In one embodiment, a sealing cap is arranged at one end of the pressing device extending out of the shell, one end of the sealing cap is sealed with the pressing clamp, and the other end of the sealing cap is sealed with the shell through hot riveting.

In one embodiment, the base is provided with a groove for abutting against the elastic sheet.

In one embodiment, the common terminal, the normally closed terminal and the normally open terminal are respectively coated on the base, the common terminal is provided with a hook groove, one end of the normally closed terminal and one end of the normally open terminal are vertically arranged, one end of the moving piece is arranged in the hook groove, and the other end of the moving piece is arranged between the normally closed terminal and the normally open terminal.

In one embodiment, the pressing catches are arranged at one end of the closed space, the pressing heads are arranged, the set number of the pressing heads is the same as the set number of the movable pieces, and the pressing heads are in one-to-one correspondence with the movable pieces, and when the pressing catches are pressed, the corresponding movable pieces are pressed by the pressing heads.

In one embodiment, the housing has a length, width, and height dimension of 8mm, 7mm, 5.3mm.

Has the advantages that:

1. the structure is simple, the design is reasonable, and the pressing head of the pressing pawl presses the moving piece by pressing the pressing pawl, so that one end of the moving piece is disconnected with the normally closed terminal and is in contact with the normally open terminal, and the signal switching is realized; when unclamping according to sincere back, under the resilience force effect of shell fragment, order about the rotor and upwarp, the rotor then with normally open terminal disconnection, with normally closed terminal contact, realize the signal and switch once more, and the rotor can order about according to sincere when upwarping, finally, makes the overall structure of switch simple, reasonable in design.

2. The synchronous conversion comprises the steps that two groups of terminal assemblies are arranged on a base, corresponding quantity of moving pieces are arranged, the moving pieces correspond to the terminal assemblies one by one, then the set quantity of moving pieces are connected in a plastic wrapping mode to form an insulating piece, when the pressing piece is pressed, the set quantity of moving pieces can be pressed according to the pressing piece, and therefore synchronous conversion of multiple groups of signals is achieved, and due to the fact that the insulating piece is formed among the set quantity of moving pieces, interference cannot be caused among the moving pieces, and therefore the terminal assemblies and the corresponding moving pieces can be controlled independently;

3. possess waterproof function, add sealed glue in the seal groove, sealed between messenger's casing and the base through sealed glue, simultaneously, set up the sealing cap between the extension end according to sincere and the casing, finally, form airtight space to this waterproof function that realizes the switch.

Drawings

Fig. 1 is an exploded view of a subminiature dual circuit hermetic switch of the present invention;

fig. 2 is a schematic view of an assembly structure of the subminiature dual-circuit hermetic switch of the present invention;

fig. 3 is a cross-sectional view of the subminiature dual-circuit hermetic switch of the present invention;

fig. 4 is a schematic diagram of a switching group structure of the subminiature dual-circuit sealing switch of the present invention;

fig. 5 is a schematic view of the base and terminal assembly of the subminiature dual-circuit hermetic switch of the present invention;

fig. 6 is a schematic diagram of a pressing structure of the subminiature dual-circuit sealing switch of the present invention.

As shown in the attached drawings:

100. a housing;

200. a base; 210. a groove;

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 pressing group; 510. a pressing head;

600. a sealing cap;

700. sealing the groove.

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 descriptive 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 4, a subminiature dual-circuit hermetic switch includes:

a housing 100;

a base 200, the base 200 and the housing 100 are covered and connected to form a closed space, two sets of terminal assemblies 300 are arranged on the base 200, and each terminal assembly 300 includes a common terminal 310, a normally closed terminal 320 and a normally open terminal 330;

the conversion group 400 is arranged in the closed space 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 wrapping 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;

and a pressing part 500, one end of the pressing part 500 is arranged in the closed space and is abutted with the movable plate 420, and the other end penetrates through the shell 100 and extends outwards.

Specifically, in this embodiment, when a signal of the switch needs to be switched, the pressing latch 500 is pressed, and the pressing latch 500 presses the moving plate 420 in the pressing process, so that one end of the moving plate 420 is pressed down to be disconnected from the normally closed terminal 320 and to be in contact with the normally open terminal 330, thereby implementing signal switching; after sincere 500 is pressed in the release, because of the shell fragment 410 possesses elasticity, under the resilience effect of shell fragment 410, can drive the one end of rotor 420 and upwarp, make rotor 420 and normally open terminal 330 disconnection, contact with normally closed terminal 420 and connect, realize switching once more of signal, and as rotor 420 upwarp the in-process, can drive simultaneously upwards according to sincere 500 and reset, finally, make the overall structure of switch simple, reasonable in design.

In addition, because the switch in this embodiment is a double-circuit switch, two sets of terminal assemblies 300 are provided, and two sets of rotor plates 420 are provided, and correspond to the terminal assemblies 300 one by one, and the two sets of rotor plates 420 are connected by plastic coating, and after plastic coating, an insulating member 430 is formed, when the pressing device 500 is pressed, the pressing device 500 simultaneously presses the two sets of rotor plates 420 and simultaneously switches signals, thereby realizing synchronous conversion of multiple sets of signals, and because the insulating member 430 is formed between the two sets of rotor plates 420, no interference is caused between each other, so that the terminal assemblies 300 and the corresponding rotor plates 420 can be independently controlled.

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 the two sets of signals can be independently controlled.

Referring to fig. 1 to 3, in order to enable the switch of the present embodiment to be used in more situations, after the base 200 is covered with the housing 100, a sealing groove 700 is formed, and a sealing compound is added in the sealing groove 700, and meanwhile, in order to ensure the normal operation of the switch, one end of the button 500 needs to extend outward through the housing 100, and a sealing cap 600 is disposed at the end of the button 500 extending outward from the housing 100, and one end of the sealing cap 600 is clamped with the button 500 and the other end is heat-riveted with the housing 100.

Through adding sealed glue in seal groove 700, can make and seal between base 200 and the casing 100, simultaneously, still can make through sealed glue and assemble fixedly between base 200 and the casing 100, and sealing cap 600 then can be sealed according to sincere 500 and between the casing 100, finally forms airtight space to seal airtight space, make two loop switch realize sealed waterproof function, make the switch can use more occasions, improve the practicality of switch.

Referring to fig. 5, in order to make the switch more sensitive during switching, a groove 210 is formed on the base 200, one end of the elastic piece 410 abuts against the groove 210, and the other end of the elastic piece 410 abuts against the insulating piece 430, so that the elastic piece 410 is arched and in a spring state, and one end of the elastic piece 420 can be kept in contact with the normally closed terminal 320 all the time in an initial state through the elastic piece 410, after the pressing piece 420 is pressed down by the pressing piece 500 to perform signal switching, and then the pressing piece 500 is released, the movable piece 420 and the pressing piece 500 are driven to reset under the effect of resilience of the elastic piece 410, and finally, one end of the elastic piece 420 abuts against the groove 210, and the other end abuts against the insulating piece 430, so that the switch is more sensitive during switching.

Referring to fig. 3 and 5, in order to better seal the switch, the common terminal 310, the normally closed terminal 320 and the normally open terminal 330 are respectively molded on the base 200, thereby sealing between the terminal assembly 300 and the base 200.

In addition, be provided with colluding groove 311 at public terminal 310, one of them one end of normally closed terminal 320 and normally open terminal 330 then sets up from top to bottom, places colluding groove 311 in with the one end of rotor 420, and the other end is then placed between normally closed terminal 320 and the normally open terminal 330, can make the one end of rotor 420 and be connected of public terminal 310 more stable through colluding groove 311, makes things convenient for the other end of rotor 420 to switch with normally closed terminal 320 and normally open terminal 330 simultaneously and touches the contact, and finally, makes the inner structure stability of switch better.

Referring to fig. 6, since the press 500 needs to press a set number of moving plates 420 at the same time, a press head 510 is disposed at one end of the press 500 disposed in the enclosed space, and the number of the press heads 510 is the same as the number of the moving plates 420, and corresponds to each other.

Finally, in order to adapt the switch of the present embodiment to different applications, the length, width, height of the housing 100 is set to 8mm, 7mm, 5.3mm, thereby forming a subminiature switch, which can be conveniently applied to various applications to improve the practicability of the switch.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. All the technicians in the field can smoothly implement the utility model 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

1. A subminiature dual-circuit hermetic switch, comprising:

a housing;

2. The subminiature dual circuit hermetic switch of claim 1, wherein: after the base and the shell are covered, a sealing groove can be formed, and sealing glue is added into the sealing groove.

3. The subminiature dual circuit hermetic switch of claim 1, wherein: and one end of the sealing cap is sealed with the pressing hoop, and the other end of the sealing cap is sealed with the shell through hot riveting.

4. The subminiature dual circuit hermetic switch of claim 1, wherein: the base is provided with a groove for abutting against the elastic sheet.

5. The subminiature dual circuit hermetic switch of claim 1, wherein: the public terminal, the normally closed terminal and the normally open terminal are respectively coated and molded on the base, the public terminal is provided with a hook groove, one end of the normally closed terminal and one end of the normally open terminal are vertically arranged, one end of the moving plate is arranged in the hook groove, and the other end of the moving plate is arranged between the normally closed terminal and the normally open terminal.

6. The subminiature dual circuit hermetic switch of claim 1, wherein: the pressing device is characterized in that the pressing device is arranged at one end of the closed space and provided with pressing heads, the number of the pressing heads is the same as that of the movable pieces, the pressing heads are in one-to-one correspondence, and when the pressing device presses the pressing heads, the corresponding movable pieces can be pressed.

7. The subminiature dual circuit hermetic switch of claim 1, wherein: the length, width, height dimensions of the housing are 8mm 7mm 5.3mm.