CN216849718U

CN216849718U - Direct-pressing type large-stroke refrigerator door switch

Info

Publication number: CN216849718U
Application number: CN202123374784.9U
Authority: CN
Inventors: 宋明华; 刘二军
Original assignee: Huizhou Greetech Electronics Co ltd
Current assignee: Huizhou Greetech Electronics Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-06-28
Anticipated expiration: 2031-12-30

Abstract

The utility model discloses a direct-pressing type large-stroke refrigerator door switch, which comprises a shell, wherein a stroke cavity and an installation cavity are arranged in the shell, the installation cavity is positioned at one side of the stroke cavity, and an insertion part is connected with the outer side of the shell; the pressing part is arranged on the pressing part, and the pressing part penetrates through the shell; the spring is arranged in the stroke cavity, and two ends of the spring are respectively abutted against the pressing part and the shell; and the terminal assembly is arranged in the mounting cavity, and one end of the terminal assembly penetrates into the inserting part. The utility model discloses set up stroke chamber and installation cavity in the casing respectively to locate one side of stroke chamber with the installation cavity, make according to sincere when pressing and kick-backing, have great stroke, in order to satisfy the stroke demand, improve the application scope of refrigerator door switch; in addition, the outer side of the casing has inserting part, and the connecting end of the terminal assembly is inserted into the inserting part to form direct inserting connection for the door switch of refrigerator.

Description

Direct-pressing type large-stroke refrigerator door switch

Technical Field

The utility model relates to a travel switch technical field, in particular to big stroke refrigerator door-trip of direct-pressing formula.

Background

A travel switch and a position switch (also called a limit switch), which are commonly used small-current master control electrical appliances. The collision of the mechanical moving parts is used to make the contact act to connect or disconnect the control circuit, so as to achieve a certain control purpose. In the daily life and industrial fields, some electrical equipment often uses a travel switch, such as a refrigerator door, an automobile door and the like, when the travel switch is installed, the travel switch is firstly installed at a prearranged position, and when a module on the refrigerator door and the automobile door impacts the travel switch, a contact of the travel switch acts to realize the switching of a circuit.

At present, the traditional travel switch realizes signal switching by utilizing impact pressing, but the travel of the travel switch is small, so that the switch travel required in the market cannot be met, the application range of the travel switch is narrow, and the safety of electrical equipment in the using process is difficult to guarantee; in addition, when the travel switch is connected to the device, a terminal of the travel switch needs to be welded to the device, so that the travel switch is inconvenient to connect to the device, and thus, a conventional travel switch needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a direct-push type large-stroke refrigerator door switch which has simple structure and reasonable design and can be rapidly inserted.

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

a direct-push type large stroke refrigerator door switch comprising:

the device comprises a shell, a first connecting piece, a second connecting piece and a connecting piece, wherein a stroke cavity and a mounting cavity are arranged in the shell, the mounting cavity is positioned on one side of the stroke cavity, and the outer side of the shell is connected with an inserting part;

the pressing part is arranged at the other end of the pressing part;

the spring is arranged in the stroke cavity, and two ends of the spring are respectively abutted against the pressing part and the inner wall of the shell;

and the terminal assembly is arranged in the mounting cavity, and one end of the terminal assembly penetrates into the plug-in part.

In one embodiment, the terminal assembly comprises a movable piece, a common terminal, a normally open terminal and a normally closed terminal, one end of the common terminal, one end of the normally open terminal and one end of the normally closed terminal are respectively arranged in the installation cavity, the other end of the common terminal penetrates into the insertion part respectively, the common terminal is located between the normally open terminal and the normally closed terminal, the middle of the movable piece is connected with the common terminal to form a fulcrum, and the two ends of the movable piece are connected with the normally open terminal or the normally closed terminal respectively under the action of a pressing force to realize signal switching.

In one embodiment, fixing ribs are distributed around the installation cavity.

In one embodiment, the movable plate comprises an elastic pressing portion and a switching portion, the elastic pressing portion and the switching portion are arranged at an included angle, a groove is formed in the middle of the switching portion, a supporting portion is arranged on the public terminal, the groove is clamped into the supporting portion, a chamfer is arranged at the top of the supporting portion, the switching portion is connected with the public terminal, contacts are further arranged at two ends of the switching portion respectively, the pressing portion acts on the elastic pressing portion, and the contacts at two ends of the switching portion are respectively in contact with or disconnected from silver points on a normally open terminal and a normally closed terminal.

In one embodiment, a boss for fixing the public terminal, the normally open terminal and the normally closed terminal is arranged in the plug part, and the public terminal, the normally open terminal and the normally closed terminal are buckled on the boss when penetrating into the plug part.

In one embodiment, the housing includes a base and a surface cover, the base is provided with a plurality of clamping blocks, the surface cover is provided with a bayonet corresponding to the clamping blocks, and the clamping blocks are buckled into the bayonet to connect the surface cover and the base.

The utility model has the advantages that: the utility model discloses direct-push type large-stroke refrigerator door switch sets up stroke chamber and installation cavity in the casing respectively, and locate one side of stroke chamber with the installation cavity, will locate the stroke chamber according to sincere simultaneously, the terminal subassembly is located the installation cavity, and carry out signal switching through acting on the terminal subassembly according to sincere, thereby make the structural design of refrigerator door switch simple, reasonable, and make when pressing according to sincere, have great stroke, so as to satisfy the switch stroke that the market demands, and improve the application scope of refrigerator door switch, ensure the refrigerator door switch and electrical equipment after being connected, security in its use; in addition, the outer side of the casing is provided with the inserting part, and the connecting end of the terminal component penetrates into the inserting part, so that the refrigerator door switch can be directly connected in an inserting way when being connected with the connector, and the refrigerator door switch is convenient to connect.

Drawings

FIG. 1 is a schematic view of a direct-push type large-stroke refrigerator door switch of the present invention;

FIG. 2 is an exploded view of the direct-push type large-stroke refrigerator door switch of the present invention;

FIG. 3 is a schematic view of a switch terminal assembly of a direct-push type large-stroke refrigerator door of the present invention;

FIG. 4 is a schematic view of the internal structure of the switch case of the direct-push type large-stroke refrigerator door of the present invention;

fig. 5 is a schematic view of the structure of the direct-push type large-stroke refrigerator door switch shell of the present invention.

As shown in the attached drawings:

100. a housing; 110. a base; 111. a clamping block; 120. a face cover; 121. a bayonet;

200. a stroke chamber;

300. a mounting cavity; 310. fixing the ribs;

400. a plug-in part; 410. a boss;

500. pressing; 510. a pressing part;

600. a spring;

700. a terminal assembly; 710. a moving plate; 711. a spring pressing part; 712. a switching unit; 713. a groove; 714. a contact; 720. a common terminal; 721. a support portion; 730. a normally open terminal; 740. a normally closed terminal; 750. and (4) silver dots.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. 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 and 2, a direct-push type large-stroke refrigerator door switch includes: the device comprises a shell 100, wherein a stroke cavity 200 and an installation cavity 300 are arranged in the shell 100, the installation cavity 300 is positioned on one side of the stroke cavity 200, and the outer side of the shell 100 is connected with a plug-in part 400;

a pressing part 500, the pressing part 500 is arranged in the stroke cavity 200, one end of the pressing part 500 penetrates through the shell 100 and extends outwards, and the other end of the pressing part 500 is provided with a pressing part 510;

the spring 600 is arranged in the stroke cavity 200, and two ends of the spring 600 are respectively abutted against the press pawl 500 and the inner wall of the shell 100;

and a terminal assembly 700, wherein the terminal assembly 700 is arranged in the mounting cavity 300, and one end of the terminal assembly 700 penetrates into the plug part 400.

Specifically, in the present embodiment, the stroke cavity 200 and the mounting cavity 300 are respectively disposed inside the housing 100, the mounting cavity 300 is disposed at one side of the stroke cavity 200, meanwhile, the pressing latch 500 and the spring 600 are disposed in the stroke cavity 200, the terminal assembly 700 is disposed in the mounting cavity 300 and penetrates into the insertion part 400, and when the pressing latch 500 is pressed or rebounded, the pressing portion 510 of the pressing latch 500 acts on the terminal assembly 700, thereby realizing the switching of signals, and making the overall structure of the refrigerator door switch simple and reasonable in design.

In order to increase the stroke of the refrigerator door switch, the installation cavity 300 is arranged at one side of the stroke cavity 200, so that the press 500 has a larger stroke when being pressed or rebounded, thereby meeting the switch stroke required in the market, increasing the application range of the refrigerator door switch, and ensuring the safety of the refrigerator door switch in the use process after being connected with electrical equipment.

In addition, the insertion part 400 is provided at the outer side of the case 100, and the terminal assembly 700 is inserted into the insertion part 400, so that the insertion type connection can be directly formed when the refrigerator door switch is connected with the connector, thereby facilitating the connection of the refrigerator door switch.

Referring to fig. 3, in order to ensure signal switching, the terminal assembly 700 includes a moving plate 710, a common terminal 720, a normally open terminal 730 and a normally closed terminal 740, wherein one end of the common terminal 720, the normally open terminal 730 and the normally closed terminal 740 are respectively disposed in the mounting cavity 300, the other end of the common terminal 720 penetrates into the insertion part 400, the common terminal 720 is located between the normally open terminal 730 and the normally closed terminal 740, the middle of the moving plate 710 is connected with the common terminal 720 to form a fulcrum, and the two ends of the moving plate are respectively connected with the normally open terminal 730 or the normally closed terminal 740 under the action of the pressing device 500 to realize signal switching.

When the signal is switched, the pressing part 500 is pressed, so that the pressing part 500 moves downwards, when the pressing part 500 moves downwards, the pressing part 510 presses the moving piece 710, the moving piece 710 tilts with the joint with the common terminal 720 as a fulcrum, the moving piece 710 is connected with the normally open terminal 730, the signal switching is realized, after the pressing part 500 is released, the pressing part 500 rebounds and resets under the action of the spring 600, the moving piece 710 tilts again with the joint with the common terminal 720 as the fulcrum, the moving piece 710 is connected with the normally closed terminal 740, the signal switching is realized, and the structural design of the refrigerator door switch is reasonable.

Of course, referring to fig. 4, in order to prevent the moving plate 710 from shifting when the pressing portion 510 of the pressing part 500 acts on the moving plate 710, the fixing ribs 310 are distributed around the mounting cavity 300, and the position of the moving plate 710 is limited by the fixing ribs 310 around, so that the moving plate 710 does not shift when switching, and finally, the structure design of the refrigerator door switch is reasonable.

Referring to fig. 3, in order to facilitate the moving plate 710 to switch with the normally open terminal 730 and the normally closed terminal 740, the moving plate 710 in this embodiment includes a pressing portion 711 and a switching portion 712, the pressing portion 711 and the switching portion 712 are disposed at an included angle, a groove 713 is disposed in the middle of the switching portion 712, the common terminal 720 is disposed with a supporting portion 721, the top of the supporting portion 721 is provided with a chamfer, the groove 713 is clamped into the supporting portion 721, so that the switching portion 712 is connected with the common terminal 720, and the two ends of the switching portion 712 are further disposed with contacts 714 respectively, the pressing portion 510 acts on the pressing portion 711, so that the contacts 714 at the two ends of the switching portion 712 are in contact with or disconnected from the silver points 750 on the normally open terminal 730 and the normally closed terminal 740 respectively.

When the pressing unit 500 is pressed, the pressing unit 500 moves downward, the pressing portion 510 of the pressing unit 500 presses the lower portion of the pressing portion 711, so that the switching portion 712 swings with the supporting portion 721 of the common terminal 720 as a fulcrum, the contact 714 at one end of the switching portion 712 contacts with the silver point 750 of the normally open terminal 730, and the signal switching is performed, and when the pressing unit 500 is released, the pressing unit 500 returns to the original position by the spring 600 and acts on the upper portion of the pressing portion 711 again, and the switching portion 712 swings with the supporting portion 721 as a fulcrum again, so that the contact 714 at the other end of the switching portion 712 contacts with the silver point 750 of the normally closed terminal 740, and the signal switching is performed.

When the pressing portion 510 acts on the pressing portion 711, the switching portion 712 can be driven to tilt, so that the pressing portion 711 and the switching portion 712 form an included angle, when the pressing portion 510 acts on the head of the included angle, the contact 714 of the switching portion 712 contacts with the silver point 750 of the normally closed terminal 740, and when the pressing portion 510 acts on the tail of the included angle, the contact 714 of the switching portion 712 contacts with the silver point 750 of the normally open terminal 730.

Referring to fig. 4 and 5, in order to realize the direct-press type connection of the refrigerator door switch and to make the refrigerator door switch stable and convenient to be plugged with the connector, a boss 410 for fixing the common terminal 720, the normally open terminal 730 and the normally closed terminal 740 is provided in the plugging part 400, the common terminal 720, the normally open terminal 730 and the normally closed terminal 740 are buckled on the boss 410 when penetrating into the plugging part 400, and the common terminal 720, the normally open terminal 730 and the normally closed terminal 740 are fixed by the boss 410, so that the common terminal 720, the normally open terminal 730 and the normally closed terminal 740 do not move or swing when the refrigerator door switch is plugged with the connector, thereby facilitating the plugging of the refrigerator door switch and the connector.

In addition, referring to fig. 5, in the embodiment, in order to facilitate assembly and later maintenance of the refrigerator door switch, the housing 100 includes a base 110 and a face cover 120, the base 110 is provided with a plurality of clamping blocks 111, the face cover 120 is provided with a bayonet 121 corresponding to the clamping block 111, the clamping block 111 is fastened into the bayonet 121, so that the face cover 120 is connected with the base 110, and the refrigerator door switch can be conveniently and quickly assembled and disassembled by the fastening connection between the bayonet 121 and the clamping block 111, thereby facilitating assembly or maintenance of the refrigerator door switch.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. 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 changes, modifications and variations can be made without departing from the scope of the present invention, which is equivalent to 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 direct-push type large-stroke refrigerator door switch is characterized by comprising:

the device comprises a shell, a first connecting piece, a second connecting piece and a connecting piece, wherein a stroke cavity and a mounting cavity are arranged in the shell, the mounting cavity is positioned on one side of the stroke cavity, and the outer side of the shell is connected with a plug-in part;

the pressing part is arranged at the other end of the pressing part;

2. The direct-push type large-stroke refrigerator door switch according to claim 1, wherein: the terminal subassembly includes movable plate, common terminal, normally open terminal and normally closed terminal, and the one end of common terminal, normally open terminal and normally closed terminal sets up respectively in the installation intracavity, and the other end then penetrates grafting portion respectively, and the common terminal is located between normally open terminal and the normally closed terminal, and the middle part and the common terminal of movable plate are connected to form the fulcrum, both ends then under the effect according to sincerely, are connected with normally open terminal or normally closed terminal respectively, realize signal switching.

3. The direct-push type large-stroke refrigerator door switch according to claim 2, wherein: and fixing ribs are distributed around the mounting cavity.

4. The direct-push type large-stroke refrigerator door switch according to claim 3, wherein: the movable plate comprises a spring pressing portion and a switching portion, the spring pressing portion and the switching portion are arranged at an included angle, a groove is formed in the middle of the switching portion, a supporting portion is arranged on a public terminal, the groove is clamped into the supporting portion, a chamfer is arranged at the top of the supporting portion, the switching portion is connected with the public terminal, contacts are further arranged at two ends of the switching portion respectively, the pressing portion acts on the spring pressing portion, and the contacts at two ends of the switching portion are in contact with or break off from silver points on a normally open terminal and a normally closed terminal respectively.

5. The direct-push type large-stroke refrigerator door switch according to claim 1, wherein: be equipped with in the grafting portion and be used for carrying out the boss fixed to public terminal, normally open terminal and normally closed terminal, public terminal, normally open terminal and normally closed terminal when penetrating to the grafting portion in, buckle on the boss.

6. The direct-push type large-stroke refrigerator door switch according to claim 1, wherein: the shell comprises a base and a face cover, wherein the base is provided with a plurality of clamping blocks, the face cover is provided with bayonets corresponding to the clamping blocks, and the clamping blocks are buckled into the bayonets so that the face cover is connected with the base.