CN114639566A

CN114639566A - Switch with a switch body

Info

Publication number: CN114639566A
Application number: CN202210334321.XA
Authority: CN
Inventors: 詹锋; 吴礼红; 郭德斌
Original assignee: Ningbo Gongniu Electric Appliances Co Ltd
Current assignee: Ningbo Gongniu Electric Appliances Co Ltd
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2022-06-17
Anticipated expiration: 2042-03-30
Also published as: CN114639566B

Abstract

The invention discloses a switch, and belongs to the field of electricity. The switch comprises a shell, a button, a support body, a transmission module, a functional module and a torsion spring piece, wherein the support body is positioned in the shell; the button is hinged to the shell, the transmission module is movably connected to the support body and is also connected with the movable contact block through the transmission module, and the transmission module is configured to convert the rotation of the button into the movement of the movable contact on the movable contact block approaching to or far away from the fixed contact; the torsion spring piece is arranged between the transmission module and the movable contact block and is configured to apply pressure close to the fixed contact to the end part where the movable contact of the movable contact block is located. The contact structure is favorable for reducing the bouncing problem when the movable contact and the static contact are contacted, increasing the contact pressure between the movable contact and the static contact, being favorable for quick breaking and frontal collision of the movable contact and the static contact, and preventing deviation.

Description

Switch with a switch body

Technical Field

The invention relates to the electrical field, in particular to a switch.

Background

A switch is an electrical device used to make and break an electrical circuit by pressing a button of the switch to rotate the switch to make or break the circuit.

A rocker switch is a common type of switch at present, which causes a button to be snapped on the top of a transition piece, the bottom of which acts on the rocker through a ball component. The button can drive transition piece bullet subassembly when being pressed to rotate and slide on the wane, and then makes the wane upset, and the movable contact on the wane is contacted or is separated with the stationary contact, realizes circuit switch-on or disconnection.

However, the moving and static contacts of the prior rocker switch have the problem of bounce when in contact, and are easy to cause arc discharge.

Disclosure of Invention

In view of the above, the present invention provides a switch, which can solve the above technical problems.

Specifically, the method comprises the following technical scheme:

a switch, the switch comprising: the device comprises a shell, a button, a supporting body, a transmission module, a functional module and a torsion spring piece, wherein the supporting body, the transmission module, the functional module and the torsion spring piece are positioned in the shell;

the button is hinged to the shell, the transmission module is movably connected to the support body, the button is further connected with the movable contact block through the transmission module, and the transmission module is configured to be capable of converting the rotation of the button into the rotation of the movable contact block so that the movable contact is close to or far away from the fixed contact;

the torsion spring piece is arranged between the transmission module and the movable contact block and is configured to apply pressure to the end part of the movable contact block where the movable contact is located and close to the fixed contact.

In some possible implementations, the movable contact block includes a first connection section, a hinge section and a second connection section, which are connected in sequence, the first connection section is electrically connected to the incoming line terminal assembly of the function module, the hinge section is connected to the first connection section of the transmission module through a pin shaft, and a bottom wall of one end of the second connection section, which is far away from the hinge section, is provided with the movable contact;

the torsion spring member includes: the spring body is connected with the first connecting portion, the first arm portion abuts against the wall, adjacent to the first connecting portion, of the transmission module, and the second arm portion abuts against the top wall of the second connecting section.

In some possible implementations, the first connection portion includes: the hinge joint comprises two hinge blocks which are symmetrically arranged, and an accommodating cavity is formed between the two hinge blocks;

the hinge section is connected with the two hinge blocks in the accommodating cavity through the pin shaft;

the spring body part is located on the hinge block or the pin shaft.

In some possible implementations, the hinge block includes a hinge portion and a boss portion, the boss portion being connected with the hinge portion within the receiving cavity;

the hinge section is located between the two shaft sleeve portions, the spring body portion is sleeved on at least one shaft sleeve portion, and the first arm portion abuts against a stop wall, facing the shaft sleeve portion, of the accommodating cavity.

In some possible implementations, the spring body includes: the first spring body and the second spring body are arranged oppositely and independent of each other;

the first arm portion includes: a first and a second abutment arm arranged opposite and independent of each other;

the second arm portion includes: a first side arm section, a butt arm section and a second side arm section which are connected in sequence;

the first abutting arm and the first side arm section are respectively connected to two sides of the first spring body, and the second abutting arm and the second side arm section are respectively connected to two sides of the second spring body;

the first spring body and the second spring body are respectively sleeved on the shaft sleeve portion correspondingly, the first abutting arm and the second abutting arm are abutted to the stop wall and located on two sides of the hinged section, the first side arm section and the second side arm section are located on two sides of the second connecting section respectively, and the abutting arm sections are abutted to the top wall of the second connecting section.

In some possible implementations, the transmission module includes a rotating member, a link member, and an elastic member;

the rotating part is movably connected to the supporting body, so that the rotating part can rotate by taking the first end of the rotating part as a rotating shaft, and the second end of the rotating part is connected with the movable contact block through a first connecting part;

the first end of the connecting rod piece is rotatably connected with the first connecting position of the button, and the second end of the connecting rod piece is rotatably connected with the second connecting part of the rotating piece; the first end of the elastic piece is connected with the second connecting position of the button, and the second end of the elastic piece is connected with the third connecting part of the rotating piece; the connecting rod piece and the elastic piece can convert the rotation of the button into the rotation of the rotating piece, so that the movable contact on the movable contact block approaches to or is far away from the fixed contact;

when the switch is in a switch-on state, the elastic piece is in a first stretching state, and the button is stopped to be positioned at a switch-on position under the combined action of the connecting rod piece and the shell;

when the switch is in an off state, the elastic piece is in a second stretching state, the button stops being located at a brake separating position under the combined action of the connecting rod piece and the shell, and the stretching degree corresponding to the first stretching state is larger than the stretching degree corresponding to the second stretching state.

In some possible implementations, the rotating member includes: the rotating body part, the two first connecting parts, the two second connecting parts and the third connecting part;

the first end of the rotating body part is used as the rotating shaft and is lapped on the supporting body;

the second end of the rotating body part is simultaneously connected with the two first connecting parts and the third connecting part, and the two first connecting parts are symmetrically distributed on two sides of the third connecting part;

the top wall of the rotating body part is connected with the two second connecting parts, and the two second connecting parts are oppositely arranged on two sides of the rotating body part;

the movable contact block comprises an N-pole movable contact block and an L-pole movable contact block which are symmetrically arranged, the N-pole movable contact block is connected with one of the first connecting parts, and the L-pole movable contact block is connected with the other first connecting part.

In some possible implementations, each of the first connecting portions includes two hinge blocks, one end of each of the two hinge blocks is connected to the second end of the rotating body portion, and an accommodating cavity is formed between the two hinge blocks;

and the side wall of the second end of the rotating body part, which is positioned in the accommodating cavity, is used as a stopping wall, and the stopping wall is used for abutting against the first arm part of the torsion spring piece.

In some possible implementations, a top wall of the second end of the rotating body part between the two hinge blocks is provided with a groove for receiving an end of the first arm part.

In some possible implementations, the movable contact block includes a first connection section, a hinge section, and a second connection section connected in sequence;

the hinged section is connected with the first connecting part through a pin shaft;

the first connecting section is electrically connected with the inlet terminal assembly of the functional module and extends to the lower part of the rotating body part through the first connecting part so as to be abutted against the top wall of the rotating body part in a switch off state, so that the torsion spring part is always in a compressed state;

the second connecting section extends to the outside of the rotating body part through the first connecting part, and the movable contact is arranged on the bottom wall of one end of the second connecting section, which is positioned at the outside of the rotating body part.

In some possible implementations, in the on state of the switch, a gap is provided between a top wall of the first connection section and a bottom wall at a corresponding position of the rotating body portion, and the gap allows the movable contact block to have a set rotation margin.

In some possible implementations, the gap is 0.3mm to 0.5mm in size.

In some possible implementations, the functional module further includes: and the two ends of the flexible connecting piece are respectively welded on the incoming line terminal assembly and the movable contact block, so that the movable contact block is electrically connected with the incoming line terminal assembly.

The technical scheme provided by the embodiment of the invention has the beneficial effects that at least:

according to the switch provided by the embodiment of the invention, through the arrangement of the torsion spring piece, the torsion spring piece can apply pressure close to the static contact to the end part where the movable contact of the movable contact block is located, and the switch at least has the following advantages: the contact structure is favorable for reducing the bounce problem existing in the contact process of the movable contact and the static contact, can increase the contact pressure between the movable contact and the static contact, is favorable for quickly breaking the movable contact and the static contact, is favorable for making the movable contact and the static contact collide in the front, and prevents deviation. The advantages improve the contact effect of the movable contact and the static contact of the switch, increase the bearing current and optimize the on-off performance of the switch.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a combination diagram of an exemplary switch provided by an embodiment of the present invention;

FIG. 2 is a cross-sectional view of an exemplary switch provided in accordance with an embodiment of the present invention;

FIG. 3 is a schematic diagram illustrating a partial structure of an exemplary switch in an ON state according to an embodiment of the present invention;

fig. 4 is a schematic diagram illustrating a partial structure of an exemplary switch in an off state according to an embodiment of the present invention;

FIG. 5 is a schematic diagram illustrating a portion of another exemplary switch, according to an embodiment of the present invention;

fig. 6 is a schematic view illustrating an assembly relationship between an exemplary rotating member and a movable contact according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of an exemplary torsion spring member provided in accordance with an embodiment of the present invention;

fig. 8 is a schematic view of the assembly of the rotating member and the moving contact shown in the on state of the switch according to the embodiment of the present invention;

FIG. 9 is a schematic diagram illustrating a portion of another exemplary switch, according to an embodiment of the present invention;

FIG. 10 is a schematic view of an exemplary rotatable member shown from two different viewing angles in accordance with an embodiment of the present invention;

FIG. 11 is a schematic structural diagram of an exemplary linkage member according to an embodiment of the present invention;

FIG. 12 is a schematic diagram illustrating a portion of another exemplary switch, according to an embodiment of the present invention;

FIG. 13 is an exploded view and an assembled view of an exemplary button provided by embodiments of the present invention;

FIG. 14 is a partial cross-sectional view of an exemplary switch provided in accordance with an embodiment of the present invention;

FIG. 15 is a schematic structural diagram of an exemplary support body provided in accordance with an embodiment of the present invention;

fig. 16 is a schematic diagram illustrating an assembly relationship between an exemplary supporting body and a rotating member according to an embodiment of the present invention.

The reference numerals denote:

1. a housing; 101. a first stopper; 102. a second stopper;

11. a face cover; 110. a button via hole; 12. a first side case; 13. a second side case;

2. a button; 201. a first connection site; 202. a second connection bit;

21. a button body; 211. a button body portion; 212. a ear plate portion;

22. a cover body; 221. a first side wall portion; 222. a first pressing part;

223. a second pressing part; 224. a second side wall portion;

3. a support body; 30. a support body; 301. a first limiting rib; 302. a first stop block;

303. a second stop block; 3031. a second limit groove; 304. a third limiting rib; 3040. an avoidance groove;

305. a third limiting groove; 306. a terminal accommodating chamber; 307. a partition plate;

31. a supporting block; 310. an open slot;

4. a rotating member;

40. a rotating body part; 400. a rotating shaft;

4001. a stopper wall; 4002. a first limit groove; 4003. a groove;

401. an N-pole connecting portion; 402. an intermediate connecting portion; 403. an L-pole connecting portion;

404. a clearance cavity;

41. a first connection portion; 411. a hinged block; 4111. a hinge portion; 4112. a boss portion;

42. a second connecting portion; 421. a limiting block; 422. a rotating groove; 4220. a side opening;

43. a third connecting portion; 430. a second limiting rib;

5. a link member; 51. a first shaft segment; 510. a notch;

52. a first side support section; 53. a second shaft section; 54. a second side support section;

6. an elastic member;

7. a functional module;

71. a movable contact block; 710. a movable contact;

711. a first connection section; 712. a hinged section; 713. a second connection section;

72. a wire inlet terminal assembly; 721. an incoming terminal; 722. feeding a conductive sheet;

73. a wire outlet terminal assembly; 730. a stationary contact; 731. an outlet terminal; 732. an outgoing conducting plate;

74. a flexible connector;

8. a torsion spring member;

81. a spring body portion; 811. a first spring body; 812. a second spring body;

82. a first arm section; 821. a first abutment arm; 822. a second abutment arm;

83. a second arm section; 831. a first side arm segment; 832. an abutment arm section; 833. a second side arm segment;

91. a pin shaft; 921. a screw; 922. a screw passing hole;

01. and a transmission module.

With the above figures, there are shown specific embodiments of the present application, which will be described in more detail below. These drawings and written description are not intended to limit the scope of the inventive concepts in any manner, but rather to illustrate the inventive concepts to those skilled in the art by reference to specific embodiments.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Reference to orientation terms such as "upper", "lower", "side", etc. in embodiments of the present invention are generally made with respect to the relative relationships of the orientations shown in fig. 1 and 2, and these orientation terms are used merely to more clearly describe structures and relationships between the structures, and are not used to describe absolute orientations. When the product is placed in different postures, the orientation may be changed, for example, "up" and "down" may be interchanged.

In the embodiment of the invention, the position of the button in the switch is defined as up or top, the position of the functional module is defined as down or bottom, and the rotation of the button and the rotating piece is defined as rotation along the vertical direction, so that the movable contact of the movable contact block moves along the downward direction until the movable contact contacts the fixed contact, or the movable contact of the movable contact block moves along the upward direction until the movable contact is far away from the fixed contact. A direction perpendicular to the vertical direction is defined as a horizontal direction, and for example, when the switch includes an N-pole functional module and an L-pole functional module, the N-pole functional module and the L-pole functional module are sequentially distributed along the horizontal direction.

Unless otherwise defined, all technical terms used in the embodiments of the present invention have the same meaning as commonly understood by one of ordinary skill in the art, and the moving contact and the stationary contact involved in the embodiments of the present invention may be considered as silver contacts well known in the art. In order to make the technical solutions and advantages of the present invention clearer, the following will describe embodiments of the present invention in further detail with reference to the accompanying drawings.

A rocker switch is a common type of switch at present, which causes a button to snap on the top of a transition piece, the bottom of which acts on the rocker through a spring assembly. The button can drive transition piece bullet subassembly when being pressed to rotate and slide on the wane, and then makes the wane upset, and the movable contact on the wane is contacted or is separated with the stationary contact, realizes circuit switch-on or disconnection.

However, with the current rocker switch, there are at least the following technical problems:

(1) in order to make the spring assembly slide on the rocker smoothly, the pressure between the spring assembly and the rocker needs to be set to be small, which makes the contact resistance between the moving contact and the stationary contact relatively large, and thus causes the load current of the rocker switch to be small, for example, the maximum load current of a common rocker switch is 16A.

(2) The rocker switch moves and makes rapid collision with the stationary contact in the switching-on process, the rapid collision of the moving and stationary contacts can bounce to generate arc discharge, and then the moving and stationary contacts are easily burnt out. In addition, the high-speed collision of moving, stationary contact makes the wane can produce the spring, because the incoming line terminal backing sheet on the incoming line terminal subassembly supports the wane, like this, the beating of wane can make support department separation between them, and then produces and draw the arc, this burns out the incoming line terminal backing sheet easily.

(3) The rocker switch is at the disconnection in-process, and the transition piece drives the bullet subassembly on it and slides on the rocker, and when the center of rocker was drawn to the bullet subassembly, the rocker just began to overturn, and the upset power of rocker is by little grow to, move, contact pressure between the stationary contact slowly diminishes at this in-process, lead the separation of actuating, stationary contact not rapidly, this also produces easily and draws the arc, and then burns out easily and move, the stationary contact.

In particular, the embodiment of the invention provides a switch aiming at the bouncing problem generated when the movable contact and the static contact collide rapidly. Fig. 1 illustrates an assembly view of the switch, fig. 2 illustrates a cross-sectional view of the switch, and fig. 3 and 4 illustrate partial structural views of the switch with the housing 1 removed, respectively. As shown in fig. 1 to 4, the switch includes: the button switch comprises a shell 1, a button 2, a supporting body 3 positioned in the shell 1, a transmission module 01, a functional module 7 and a torsion spring piece 8, wherein the functional module 7 comprises a movable contact block 71 with a movable contact 710 and a fixed contact 730 matched with the movable contact 710, the movable contact 710 is moved to be in contact with the fixed contact 730, the switch is switched on, and conversely, the movable contact 710 is moved to be separated from the fixed contact 730, the switch is switched off.

The button 2 is hinged to the housing 1, the transmission module 01 is movably connected to the support body 3, the button 2 is further connected to the movable contact block 71 through the transmission module 01, and the transmission module 01 is configured to convert the rotation of the button 2 into the rotation of the movable contact block 71, so that the movable contact 710 approaches to or departs from the fixed contact 730.

That is, the button 2 is pressed to rotate, so that the movable contact block 71 is moved correspondingly by the transmission module 01, and the movable contact 710 on the movable contact block 71 approaches or moves away from the fixed contact 730, so that the switch is turned on or off.

As shown in fig. 3 or 4, a torsion spring member 8 is disposed between the transmission module 01 and the movable contact block 71, and the torsion spring member 8 is configured to apply a pressing force toward the fixed contact 730 to the end of the movable contact 710 of the movable contact block 71.

In the switch provided by the embodiment of the present invention, by providing the torsion spring element 8, the torsion spring element 8 can apply a pressure on the end of the movable contact 710 of the movable contact block 71, which is close to the stationary contact 730, so that the movable contact block 71 partially rotates under the action of the torsion spring element 8, which has at least the following advantages: the bounce problem existing in the contact process of the movable contact and the fixed contact can be reduced, the contact pressure between the movable contact 710 and the fixed contact 730 can be increased, the movable contact 710 and the fixed contact 730 can be disconnected quickly, the movable contact 710 and the fixed contact 730 can be collided in the front, and the deviation can be prevented. The advantages improve the contact effect of the moving contact and the static contact of the switch, increase the bearing current and optimize the on-off performance of the switch.

For example, as shown in fig. 5, the movable contact block 71 includes a first connection section 711, a hinge section 712 and a second connection section 713, which are connected in sequence, the first connection section 711 is electrically connected to the incoming terminal assembly 72 of the function module 7, as further shown in fig. 6, the hinge section 712 is connected to the first connection section 41 of the transmission module 01 through a pin 91 (such that the hinge section 712 can rotate relative to the first connection section 41), and a movable contact 710 is disposed on a bottom wall of an end of the second connection section 713 away from the hinge section 712.

As shown in fig. 6, the torsion spring member 8 includes: a spring body 81, and a first arm portion 82 and a second arm portion 83 connected to both sides of the spring body 81; the spring body portion 81 is connected to the first connection portion 41, the first arm portion 82 abuts on the wall of the rotation member 4 adjacent to the first connection portion 41, and the second arm portion 83 abuts on the top wall of the second connection section 713, so that the second connection section 713 provided with the movable contact 710 is pressed down. The above arrangement of the torsion spring member 8 facilitates the torsion spring member 8 to be always kept in a compressed state.

In some implementations, as shown in fig. 6, the first connection portion 41 includes: two hinged blocks 411 are symmetrically arranged, and a containing cavity is arranged between the two hinged blocks 411. The hinge section 712 is connected with the two hinge blocks 411 through a pin shaft 91 in the accommodating cavity; the spring body 81 is located at the hinge block 411 or the pin 91.

The spring body 81 may be disposed on the hinge block 411 or on the pin 91, so that the first arm 82 and the second arm 83 can be compressed when the hinge section 712 rotates, and the torsion spring 8 can be compressed or properly extended.

In some examples, as shown in fig. 6, the hinge block 411 includes a hinge portion 4111 and a boss portion 4112, and the boss portion 4112 is connected with the hinge portion 4111 within the receiving cavity. The hinge section 712 is located between the two boss portions 4112, the pin 91 can simultaneously penetrate through the two hinge blocks 411 and the hinge section 712, or only penetrate through the hinge section 712 and the two ends of the hinge section are located in the boss portions 4112, and the movable contact block 71 can be hinged to the first connection portion 41 in the above manner.

It can be understood that the hinge portion 4111, the sleeve portion 4112 and the hinge section 712 of the movable contact block 71 have sequentially connected shaft holes, and the pin 91 penetrates through the shaft holes, so that the hinge section 712 can rotate in the accommodating cavity. The spring body 81 is sleeved on at least one boss portion 4112, and the first arm 82 abuts on a stop wall 4001 of the accommodating cavity facing the boss portion 4112.

The spring body portion 81 may be sleeved on only one boss portion 4112, or the spring body portion 81 may be sleeved on two boss portions 4112, and the spring body portion 81 is simultaneously arranged on two boss portions 4112, which is favorable for making the pressure of the torsion spring member 8 to the movable contact block 71 more balanced, and the following exemplary description is made with respect to the spring body portion 81 arranged on both boss portions 4112:

as shown in fig. 7, the spring body 81 includes: a first spring body 811 and a second spring body 812 which are arranged oppositely and independent from each other; the first arm portion 82 includes: a first and a second

abutting arm

821, 822 arranged oppositely and independent from each other; the second arm portion 83 includes: a first side arm segment 831, an abutment arm segment 832 and a second side arm segment 833 connected in series.

The first abutting arm 821 and the first side arm segment 831 are respectively connected to two sides of the first spring body 811, and the second abutting arm 822 and the second side arm segment 833 are respectively connected to two sides of the second spring body 812; as can be seen from fig. 6, the first spring body 811 and the second spring body 812 are respectively and correspondingly sleeved on one shaft sleeve portion 4112, the first abutting arm 821 and the second abutting arm 822 are both abutted to the stopping wall 4001 and located at two sides of the hinge section 712, the first side arm section 831 and the second side arm section 833 are respectively located at two sides of the second connecting section 713, and the abutting arm section 832 is abutted to a top wall of the second connecting section 713.

The torsion spring 8 having the above-mentioned structural arrangement may be formed by bending a metal wire having high elasticity, and the first and

second contact arms

821 and 822 are in a single rod shape and symmetrically contact the stopper wall 4001, and the second arm 83 is in a U-shaped rod shape and surrounds three sides of the second connecting section 713 and contacts the top wall of the second connecting section 713.

In the embodiment of the present invention, the torsion spring 8 is always in the compression state, when the switch is in the on state, the torsion spring 8 is in the first compression state, when the switch is in the off state, the torsion spring 8 is in the second compression state, and the compression degree corresponding to the second compression state is smaller than the compression degree corresponding to the first compression state.

The second arm 83 acts the stored elastic potential energy of the torsion spring element 8 downwards on the second connecting section 713 of the trolley block 71, so that the second connecting section 713 of the trolley block 71 is always heavier relative to its first connecting section 711. When the switch is switched from the off state to the on state, the heavier second connection section 713 facilitates the movable contact 710 and the stationary contact 730 to collide frontally and increase the contact pressure between the movable contact 710 and the stationary contact 730.

The following further illustrates the arrangement of the torsion spring element 8 in connection with the structure of the transmission module 01:

as shown in fig. 1 to 4, the transmission module 01 includes a rotation member 4, a link member 5 and an elastic member 6, as shown in fig. 2 and 3, the rotation member 4 is movably connected to the supporting body 3, such that the rotation member 4 can rotate with a first end of the rotation member 4 as a rotation shaft 400, and a second end of the rotation member 4 is connected to the movable contact 71 through a first connection portion 41. The rotation member 4 integrally rotates with the first end thereof as the rotation shaft 400, so that the second end of the rotation member 4 further drives the movable contact block 71 to move up and down, and the movable contact 710 thereon approaches or moves away from the stationary contact 730.

A first end of the link member 5 is rotatably connected with the first connecting portion 201 of the button 2, and a second end of the link member 5 is rotatably connected with the second connecting portion 42 of the rotating member 4; and a first end of the elastic member 6 is connected to the second connection portion 202 of the button 2, and a second end of the elastic member 6 is connected to the third connection portion 43 of the rotation member 4. The link member 5 and the elastic member 6 can convert the rotation of the button 2 into the rotation of the rotation member 4, thereby moving the movable contact 710 on the movable contact block 71 toward or away from the stationary contact 730.

In particular, in the on state of the switch, the elastic member 6 is in the first tensile state, and the push button 2 is stopped at the closing position by the cooperation of the link member 5 and the housing 1. And, in the switch off state, the elastic member 6 is in the second stretching state, and the button 2 is stopped at the opening position under the combined action of the link member 5 and the shell 1.

The degree of stretch of the elastic member 6 in the first stretched state is greater than the degree of stretch in the second stretched state, which may be considered as the total length, i.e., the stretched length, of the elastic member 6 in each stretched state. It can be seen that the elastic member 6 has a greater tensile length in the on-state of the switch than in the off-state of the switch.

The switch provided by the embodiment of the invention is rotated between a closing position corresponding to a switch-on state and an opening position corresponding to a switch-off state by pressing the button 2 through arranging the rotating piece 4, the connecting rod piece 5 and the elastic piece 6 between the button 2 and the movable contact block 71. The rotating button 2 acts on the link member 5 and the elastic member 6, respectively, and drives the rotating member 4 to rotate, so as to finally make the movable contact 710 and the fixed contact 730 contact or separate, thereby achieving the purpose of connecting or disconnecting the function module 7. When the switch is in the on state, elastic component 6 is in first tensile state, and button 2 will be unbalanced because of the tensile effect of elastic component 6 in switching on position department, and at this moment, end the position to button 2 through connecting rod spare 5 and casing 1 and overcome this unbalance, make button 2 stabilize in the switching on position. Since the elastic member 6 is in the first tensile state, the elastic member 6 will press the rotating member 4, and the pressing force acts on the moving contact 710 directly through the rotating member 4, which is beneficial to increasing the contact pressure between the moving contact 710 and the fixed contact 730, and further reducing the contact resistance between the moving contact 710 and the fixed contact 730, so that the switch provided by the embodiment of the invention can bear larger current.

For example, the carrying current is at least larger than 16A, and further, the carrying current of the switch is large enough to make the switch suitable for kitchen appliances, air conditioners and other electric devices.

Because the corresponding stretching degree of the elastic element 6 in the switch-on state is greater than the corresponding stretching degree of the elastic element 6 in the switch-off state, when the switch is switched from the switch-on state to the switch-off state, the button 2 is pressed to rotate to the opening position, the elastic element 6 has the trend of instantaneous reset and rapidly pulls the rotating element 4 upwards, the rotating element 4 rapidly rotates upwards and drives the movable contact block 71 to rapidly move upwards, and the movable contact 710 is rapidly separated from the stationary contact 730, so that the problem of arc discharge of the movable contact 710 and the stationary contact 730 in the switching-off process is effectively solved.

When the switch is in the off state, elastic component 6 is in the second tensile state, and button 2 will be unbalanced because of elastic component 6's tensile effect in separating brake position department, and at this moment, ends the position to button 2 through connecting rod spare 5 and casing 1 and overcomes this unbalance, makes button 2 stabilize in separating brake position.

When the switch is switched from the off state to the on state, the button 2 is pressed to rotate to the switching-on position and stretch the elastic element 6 again, meanwhile, the connecting rod element 5 pushes the rotating element 4 to move downwards, in the process, the stretched elastic element 6 reacts on the rotating element 4, so that the rotating element 4 drives the movable contact block 71 to move downwards quickly, the movable contact 710 is in quick contact with the fixed contact 730, and under the pushing action of the stretched elastic element 6, the movable contact 710 and the fixed contact 730 cannot bounce even if colliding quickly, and the problem of arc discharge of the movable contact 710 and the fixed contact 730 in the switching-on process is effectively avoided.

As can be seen from the above, in the switch provided in the embodiment of the present invention, the rotating member 4, the link member 5 and the elastic member 6 are disposed between the push button 2 and the movable contact block 71, and the rotating push button 2 drives the rotating member 4 to rotate through the link member 5 and the elastic member 6, so as to finally achieve the purpose of contacting or separating the movable contact 710 and the fixed contact 730. Because the elastic element 6 is always in a stretching state when the switch is switched on and switched off, the contact pressure between the movable contact 710 and the fixed contact 730 is increased, the bearing current of the switch is obviously improved, the movable contact 710 and the fixed contact 730 are quickly separated in the switching-off process of the switch, arc discharge is avoided, the movable contact 710 and the fixed contact 730 are quickly collided without bouncing in the switching-on process of the switch, and the arc discharge problem is further improved.

The switch provided by the embodiment of the invention has the advantages of large carrying current, quick disconnection between the movable contact 710 and the fixed contact 730, arc discharge prevention, long service life and the like, and also has the advantages of few parts, simple structure and assembly, high transmission efficiency and the like.

The switch provided by the embodiment of the invention can be a single-pole switch or a double-pole switch, and the double-pole switch can be used for simultaneously connecting or disconnecting the live wire and the zero wire. In order to keep the forces exerted by the elastic member 6 and the link member 5 in the switch in a balanced state, the switch provided by the embodiment of the present invention may be designed as a bipolar switch, and the following description is made for the components involved in the bipolar switch and the assembly relationship thereof:

as shown in fig. 9, the rotating member 4 includes: a rotating body portion 40, two first connecting portions 41, two second connecting portions 42, and a third connecting portion 43. Wherein, the first end of the rotating body 40 is used as the rotating shaft 400 to lap on the supporting body 3; the second end of the rotating body 40 is connected to two first connecting portions 41 and a third connecting portion 43, and the two first connecting portions 41 are symmetrically distributed on two sides of the third connecting portion 43. Two second connecting portions 42 are connected to the top wall of the rotating body portion 40, and the two second connecting portions 42 are oppositely disposed on both sides of the rotating body portion 40. The movable contact block 71 includes an N-pole movable contact block 71 and an L-pole movable contact block 71 which are symmetrically arranged, the N-pole movable contact block 71 is connected with one of the first connecting portions 41, and the L-pole movable contact block 71 is connected with the other first connecting portion 41.

By arranging the two first connecting portions 41 and the two second connecting portions 42 at the second end of the rotating member 4, the elastic member 6 is connected by the first connecting portions 41, and the N-pole movable contact block 71 and the L-pole movable contact block 71 are connected by the two second connecting portions 42, so that the acting force of the elastic member 6 in a tensile state is more directly and efficiently transmitted to the N-pole movable contact block 71 and the L-pole movable contact block 71 through the rotating member 4, and the movable contact 710 and the fixed contact 730 are quickly disconnected and a larger contact pressure is obtained.

Also, the third connecting portion 43 is arranged centrally between the two first connecting portions 41, and the elastic piece 6 is arranged centrally in the switch so that the forces applied to the N-pole movable contact block 71 and the L-pole movable contact block 71 by them are equalized. By arranging the two second connecting portions 42 on the top wall of the rotating body portion 40 between the two ends, it is possible to not only ensure the pulling and pushing of the link member 5 to the rotating member 4, but also to support the rotating member 4 and the push button 2 as a whole so as to keep both positions stable in the switch-on state and the switch-off state.

By way of further example, as shown in fig. 10, the rotating body portion 40 includes an N-pole connecting portion 401, an intermediate connecting portion 402, and an L-pole connecting portion 403 connected in sequence, wherein both sides of the intermediate connecting portion 402 and the N-pole connecting portion 401 and the L-pole connecting portion 403 form a clearance cavity 404, respectively.

The N-pole connecting part 401 and the L-pole connecting part 403 are identical in structure, the second ends of the N-pole connecting part and the L-pole connecting part are respectively connected with a first connecting part 41, and the middle positions of the N-pole connecting part and the L-pole connecting part are respectively connected with a second connecting part 42; the second end of the intermediate connection portion 402 is connected with the third connection portion 43; the rotation shaft 400 is provided by the first ends of the N-pole connecting portion 401, the intermediate connecting portion 402, and the L-pole connecting portion 403 in common.

In some examples, as shown in fig. 10, the first end phase of the rotating body portion 40 as the rotating shaft 400 forms an angle with other portions of the rotating body portion 40, which is greater than 90 ° and less than 180 °, for example, the angle is 110 °, 115 °, 120 °, 125 °, 130 °, and the like. In this way, the first end of the rotating body portion 40 is arranged obliquely with respect to the other portions of the rotating body portion 40, so that the rotation of the rotating member 4 is smoother and interference with the supporting body 3 can be avoided.

As shown in fig. 3, when the switch is in the on state, the other portion of the rotating body portion 40 except for the first end is horizontally arranged, and the first end of the rotating body portion 40 is arranged tilted up with respect to the other portion.

As described above, each first connecting portion 41 includes two hinge blocks 411, one end of each hinge block 411 is connected to the second end of the rotating body portion 40, a receiving cavity is formed between the two hinge blocks 411, an end of the receiving cavity away from the stop wall 4001 has an opening, and the second connecting section 713 of the torsion spring 8 protrudes out of the receiving cavity through the opening.

The side wall of the second end of the rotating body 40 of the rotating body 4, which is located inside the accommodating cavity, serves as the above-mentioned stop wall 4001, and further, a groove 4003 is provided on the top wall of the second end of the rotating body 40, which is located between the two hinge blocks 411, the groove 4003 is used for accommodating the end of the first arm 82, so that the installation of the torsion spring element 8 is facilitated, and in the switch-on process of the switch, the stop wall 4001 presses the first arm 82 to rotate, and the groove 4003 accommodates the end of the first arm 82, which facilitates the torsion spring element 8 to be compressed rapidly.

As shown in fig. 5, the movable contact block 71 includes a first connection section 711, a hinge section 712, and a second connection section 713, which are connected in sequence; the hinge section 712 is connected with the first connection portion 41 through a pin 91 in the accommodating cavity; the first connecting section 711 extends to the lower part of the rotating body 40 through the accommodating cavity on the first connecting part 41, and the first connecting section 711 is electrically connected with the incoming terminal assembly 72 of the functional module 7; the second connection section 713 extends to the outside of the rotating body portion 40 through the receiving cavity of the first connection portion 41, and the movable contact 710 is disposed on the bottom wall of one end of the second connection section 713 located outside the rotating body portion 40.

When the switch is switched from the on state to the off state, the movable contact 710 is separated from the stationary contact 730, at this time, the second connection section 713 where the movable contact 710 is arranged rotates downward by a certain angle (i.e., partially rotates) under the reset action of the torsion spring 8, and since the first connection section 711 extends to the lower side of the rotating body portion 40, the top wall of the first connection section 711 is abutted to the bottom wall of the corresponding position of the rotating body portion 40, so as to play a limiting role, and the torsion spring 8 can be prevented from being completely reset, so that the torsion spring 8 is still in the second compression state under the switch off state.

Further, as shown in fig. 8, in the switch on state, a gap H is provided between the top wall of the first connection section 711 and the bottom wall at the corresponding position of the rotating body portion 40, the gap H allowing the movable contact block 71 to have a set rotation margin.

So set up, even the switch silver point appears ablating when normal use, movable contact block 71 can continue to be close to stationary contact 730 based on this clearance adaptability, and this not only makes and keeps normal contact and stable pressure between movable contact 710 and the stationary contact 730, and then ensures the switch and puts through steadily, still does benefit to movable contact 710 and stationary contact 730 and carries out soft bullet rather than hard bullet, and then reduces the contact loss speed, strengthens the contact life-span.

In some examples, the gap is sized between 0.3mm and 0.5mm, such as 0.3mm, 0.35mm, 0.4mm, 0.45mm, and the like.

The connection between the second connecting portion 42 and the link member 5 is exemplarily described as follows:

as shown in fig. 10, the second connection portion 42 includes: a first end of the limiting block 421 is connected to the top wall of the rotating body 40, and a second end of the limiting block 421 is located above the rotating body 40, so that the rotating groove 422 with a side opening 4220 is formed between the limiting block 421 and the rotating body 40; the second coupling portion 42 is configured to allow the second end of the link member 5 to enter the rotation groove 422 through the side opening 4220 and rotate the second end of the link member 5 within the rotation groove 422.

By forming the rotation groove 422 between the limiting block 421 and the rotation body 40, the second end of the link member 5 can rotate in the rotation groove 422 correspondingly along with the rotation of the button 2, and meanwhile, the link member 5 can pull the limiting block 421 or push the rotation body 40 upwards while rotating, so as to drive the rotation member 4 to rotate. In addition, the side opening 4220 facilitates the assembly of the link member 5 thereat.

As described above, the rotating body portion 40 includes the N-pole connecting portion 401, the intermediate connecting portion 402, and the L-pole connecting portion 403 connected in this order, and both of the second connecting portions 42 include: a stopper 421 and a rotation groove 422, wherein a first end of one stopper 421 is connected to the top wall of the N-pole connecting portion 401, and a second end thereof is located above the N-pole connecting portion 401, and a first end of the other stopper 421 is connected to the top wall of the L-pole connecting portion 403, and a second end thereof is located above the L-pole connecting portion 403.

Further, a groove wall of the rotation groove 422 at a side opposite to the side opening 4220 thereof has a circular arc shape for guiding the rotation of the second end of the link member 5, and in some examples, the circular arc-shaped groove wall may be formed at an inner side of the first end of the stopper 421. With this arrangement, it is advantageous to make the rotation process of the link member 5 more efficient and smooth.

In some examples, the stopper 421 is obliquely arranged such that the longitudinal dimension of the rotation groove 422 is gradually increased in a direction approaching the side opening 4220, i.e., the rotation groove 422 is obliquely upward slotted.

For example, the first end of the stopper 421 is an arc surface, the bottom wall of the other part of the stopper 421 except the first end thereof is an inclined surface, the top wall of the rotating body 40 is a plane, and the distance between the bottom wall of the stopper 421 and the top wall of the rotating body 40 gradually increases from the first end of the stopper 421 to the second end of the stopper 421, so as to gradually increase the longitudinal dimension of the rotating groove 422 along the direction close to the side opening 4220. With the above arrangement, the size of the side opening 4220 is maximized, which facilitates the fitting of the link member 5 into the rotation groove 422.

The following describes, in conjunction with the structure of the link member 5, an exemplary manner of action between the rotating member 4 and the link member 5:

in some implementations, as can be seen in fig. 11, the link member 5 includes: a first rotating shaft section 51, a first side support section 52, a second rotating shaft section 53 and a second side support section 54 which are connected in sequence; as can be seen from fig. 12, two sides of the first shaft segment 51 are respectively rotatably connected to a first connecting position 201; the second shaft section 53 is rotatably connected to a second connecting portion 42 on each of its two sides.

The link member 5 has a rectangular frame-like structure, so that the rotational force of the push button 2 can be more uniformly and efficiently applied to the rotary member 4.

The first connection sites 201 on the push button 2 are designed as holes, and in some examples, two first connection sites 201 are symmetrically arranged on two sides of the push button 2. In other examples, the first connection site 201 is arranged as only one, and both ends thereof extend to both sides of the button 2, for example, the first connection site 201 has a long through hole shape.

In some examples, the first shaft segment 51 may be a complete rod (not shown), in which case the first connection position 201 of the button 2 is a partially open hole, and the bottom of the hole is provided with a bottom opening, through which the first shaft segment 51 enters the first connection position 201.

In some examples, as shown in fig. 11, the first shaft segment 51 has a notch 510, and the first connection sites 201 are connected to portions of the first shaft segment 51 on two sides of the notch 510, and when the first connection sites 201 are arranged symmetrically, the portions of the first shaft segment 51 on two sides of the notch 510 are rotatably connected to one first connection site 201. For example, a notch 510 is provided at a middle position of the first shaft segment 51, such that the first shaft segment 51 includes two portions located at both sides of the notch 510. In this case, the first connection sites 201 on the push button 2 may be closed holes, but of course, one or both of the first connection sites 201 may be partially open holes.

During installation, the end of the first shaft segment 51 near the notch 510 is inserted into the corresponding first connecting position 201 to complete the assembly.

The first and

second shaft segments

51 and 53 are cylindrical, and the first and second

side support segments

52 and 54 may be cylindrical structures or other rod-shaped structures, such as rectangular rods. In some examples, the first shaft segment 51 has a notch 510 formed therein, and the link member 5 is formed by bending a cylindrical metal rod.

In conjunction with the link member 5 of the above-described structure, the manner in which the link member 5 acts on the rotation member 4 is exemplarily described:

as shown in fig. 4, during the switch off process, the button 2 is pressed to rotate, the link member 5 rotates accordingly and the second shaft segment 53 rotates upwards along the rotating groove 422, the limiting block 421 is pulled upwards, so that the rotating member 4 rotates upwards, until the button 2 rotates to the open position, and the distance of the upward rotation of the rotating member 4 reaches the maximum. At this time, the first pivot section 51 of the link member 5 pulls down the button 2, the second pivot section 53 pulls up the rotating member 4, and the button 2 reaches a position equilibrium at the opening position by the pulling down of the link member 5.

Although the elastic member 6 in the extended state tends to unbalance the push button 2, the unbalance is compensated by arranging a stopper on the housing 1 to stop the push button 2, thereby ensuring that the push button 2 is stabilized in the open position. In the off state, the vertical distance between the first and second

rotation shaft sections

51 and 53 of the link member 5 is minimized, and both exert more force on the button 2 and the rotation member 4 in the horizontal direction, and in some examples, the inclination directions of the first and second

side support sections

52 and 54 of the link member 5 are made substantially parallel to the inclination direction of the button main body 21.

As shown in fig. 3, during the switch-on process, the button 2 is pressed to rotate, the link member 5 rotates accordingly and the second shaft segment 53 rotates downward along the rotating groove 422, the rotating member 4 is pressed downward to rotate downward until the button 2 rotates to the on position, and the distance of the downward rotation of the rotating member 4 reaches the maximum. At this time, the first rotating shaft section 51 of the link member 5 pushes the button 2, the second rotating shaft section 53 pushes the rotating member 4 downward, and the button 2 reaches a position equilibrium at the closing position by the pull-down action of the link member 5.

Although the elastic member 6 in the extended state tends to unbalance the push button 2, the unbalance is compensated by arranging another first stopper 101 on the housing 1 to stop the push button 2, thereby ensuring that the push button 2 is stabilized in the on position. In the switch-on state, the vertical distance between the first and

second pivot sections

51 and 53 of the link member 5 reaches a maximum, both of which force the button 2 and the rotation member 4 more in the vertical direction, and in some examples, the first and second

side support sections

52 and 54 of the link member 5 are made substantially perpendicular to the button main body 21.

The following is an exemplary description of some suitable configurations of the push-button 2:

in some implementations, as shown in fig. 13, the button 2 includes: the button comprises a button main body 21 and a cover body 22, wherein the button main body 21 is hinged to the shell 1, and the cover body 22 is buckled on the button main body 21 and exposed in a button through hole 110 formed in the top wall of the shell 1; the first connection site 201 and the second connection site 202 are both disposed on the button body 21.

The area of the button body 21 at the button via hole 110 can be designed to be small, and the area of the cover 22 at the button via hole 110 can be designed to be large, so as to enlarge the pressing area, thereby achieving a more labor-saving pressing effect, and further facilitating beautification of the appearance of the button 2.

When the button is applied, the button main body 21 is driven to synchronously rotate by pressing the cover body 22.

In some examples, as shown in fig. 13, the button body 21 includes: the button comprises a button main body part 211 and an ear plate part 212, wherein the upper end of the ear plate part 212 is connected with the lower end of the button main body part 211, and a second connecting position 202 is arranged at the bottom center position of the button main body part 211; the lower end of the ear plate portion 212 is arranged with the first connection site 201.

The central point department of button main part 211 has arranged second connection position 202, ear plate portion 212 that is located button main part 211 below has arranged two first connection positions 201, second connection position 202 and the interval that rotates between 4 is great, and then elastic component 6 can be designed for longer, this does benefit to the tensile effect that improves elastic component 6, first connection position 201 and the interval that rotates between 4 are less, connecting rod spare 5 can be designed for shorter, this does benefit to the transmission effect that improves connecting rod spare 5, make its transmission more direct, it is smooth and easy and high-efficient.

In addition, it is understood that the elastic member 6 is farther from the rotating shaft 400 of the rotating member 4 than the link member 5, which makes the expansion stroke of the elastic member 6 larger than the rotating stroke of the link member 5 (accordingly, the rear part of the rotating stroke of the rotating member 4 is mainly derived from the elastic member 6), so that the length of the elastic member 6 larger than the length of the link member 5 can also be adapted to this condition.

In some examples, as shown in fig. 13, the ear plate portions 212 are provided in two, two ear plate portions 212 are respectively located at two opposite sides of the button main body portion 211, an upper end of each ear plate portion 212 is connected with a lower end of a corresponding side of the button main body portion 211, and a lower end of each ear plate portion 212 is disposed with one first connection site 201.

Of course, it is also possible to design the ear plate portion 212 as a unitary structure, for example, the lower end of the ear plate portion 212 is a hollow shaft body, and the hollow cavity thereof serves as the first connecting position 201.

In some examples, as shown in fig. 13, the cover 22 includes a first side enclosing part 221, a first pressing part 222, a second pressing part 223 and a second side enclosing part 224 which are connected in sequence; the first pressing portion 222 and the second pressing portion 223 are disposed obliquely with respect to each other, and the first pressing portion 222 and the second pressing portion 223 are fastened to the button body 211.

Illustratively, the top wall of the button main body portion 211 includes two pressing portions that are inclined with respect to each other, the first pressing portion 222 is overlapped with one of the pressing portions in a surface-to-surface contact manner, and the second pressing portion 223 is overlapped with the other pressing portion in a surface-to-surface contact manner, so that the pressing operation of the cover body 22 is completely equivalent to the pressing operation of the button main body portion 211.

The first side wall 221 is located below the first pressing portion 222 and connected to one side of the button body 211; the second side wall portion 224 is located below the second pressing portion 223 and connected to the other side of the button body portion 211. For example, the two side walls are connected by a snap-fit connection to achieve the assembly of the cover 22 on the button body 21.

In some examples, the first side wall portion 221 and the corresponding one side of the button body portion 211 are both designed to be flat, and the second side wall portion 224 and the corresponding other side of the button body portion 211 are both designed to be arc-shaped. As mentioned above, the push button 2 is positionally balanced at both the open position and the closed position by the link member 5, and in order to cancel out the unbalance of the push button 2 pulled by the extended elastic member 6, the housing 1 is internally provided with the first stopper 101 and the two second stoppers 102 (see fig. 14).

As can be further seen from fig. 2, when the button 2 is located at the switching-on position, the first stopper 101 abuts against an end of the first pressing portion 222 away from the second pressing portion 223, so that the first pressing portion 222 is horizontally disposed in the button via hole 110, and the second pressing portion 223 is located outside the button via hole 110 and is in an upturned state.

As shown in fig. 14, when the button 2 is located at the opening position, the second stopper 102 abuts against one side of the two ear plate portions 212 far from the second pressing portion 223, so that the second pressing portion 223 is horizontally disposed in the button via hole 110, and the first pressing portion 222 is located outside the button via hole 110 and in an upturned state.

In some examples, as shown in fig. 1, the housing 1 includes: a face cover 11, a first side case 12, and a second side case 13; the first side shell 12 and the second side shell 13 are matched and butted to form a cavity with an upper opening; the face cover 11 is connected to the first side case 12 and the second side case 13 to close the upper opening; opposite sides of the button 2 are hinged to the first side case 12 and the second side case 13, respectively, and the face cover 11 has a button through-hole 110 exposing the button 2.

With reference to the above structure of the housing 1, as shown in fig. 2, the first stopper 101 is connected to the face cover 11 and located at one side inside the button through hole 110, when the button 2 is at the on position, the first pressing portion 222 is horizontally disposed in the button through hole 110, and the bottom wall of the end portion of the first pressing portion 222 horizontally overlaps the top wall of the first stopper 101 to counteract the pulling force applied to the button 2 by the elastic member 6.

In combination with the above structure of the housing 1, as shown in fig. 14, two second stoppers 102 may be disposed, where the two second stoppers 102 are respectively connected to the first side shell 12 and the second side shell 13 and located at one side of the inside of the upper opening, and when the button 2 is located at the opening position, the ear plate portion 212 rotates along the opening direction to make the side wall thereof abut against the side wall surface of the second stopper 102, so as to counteract the pulling force applied by the elastic member 6 to the button 2.

In some implementations, as shown in fig. 2, the elastic element 6 is a tension spring, a first end of the elastic element 6 is hooked to the second connection portion 202 of the button 2, and a second end of the elastic element 6 is hooked to the third connection portion 43 of the rotating element 4.

For example, a support shaft is provided at the bottom of the button body 211, an annular groove is provided at the middle of the support shaft as the second connection position 202, and the first end of the elastic member 6 is hooked on the annular groove-shaped second connection position 202 (see fig. 13), so that stable connection is achieved.

The third connecting portion 43 of the rotating member 4 is a lug plate structure protruding above the second end of the rotating body 40, and a through hole is formed in the lug plate structure, so that the second end of the elastic member 6 is hooked in the through hole, thereby realizing stable connection.

Based on the above, the supporting body 3 is used for supporting the rotating member 4 and allowing the rotating member 4 to rotate, and in some examples, the supporting body 3 has a limiting mechanism thereon, and the supporting body 3 is configured to allow the rotating member 4 to rotate in the vertical direction and limit the rotating member 4 in the horizontal direction by using the limiting mechanism.

As shown in fig. 15, the supporting body 3 includes a supporting body 30 and a supporting block 31 at a first end of the supporting body 30, the supporting block 31 is provided with an open slot 310 having an open side facing the rotating body portion 40; the limiting mechanism comprises a first limiting rib 301, and the first limiting rib 301 is fixed in the open slot 310.

As can be seen from fig. 16, the first end of the rotating body 40 has a first limiting groove 4002 in the middle, the first end of the rotating body 40 enters the open slot 310 through the side opening, the bottom wall of the first end of the rotating body 40 is lapped on the bottom wall of the open slot 310, and the first limiting rib 301 is located in the first limiting groove 4002. The rotating body part 40 can be lapped on the supporting block 31 to rotate, the first limiting rib 301 is matched with the first limiting groove 4002, the first end of the rotating part 4 can be limited in the horizontal direction, the rotating part can only rotate in the vertical direction, and the rotating part cannot displace in the horizontal direction.

Further, as shown in fig. 15, the limiting mechanism further includes a first stopper 302, and the first stopper 302 is connected to the top end of the supporting block 31; the first stopper 302 is adapted to be stopped by a top wall of the first end of the rotating body portion 40 when the switch is in the off state (see fig. 16).

During the switch off process, the first end of the rotating body 40 rotates upward, and when it rotates in place (i.e. the button 2 is in the open position), the first stopper 302 stops the top wall of the first end of the rotating body 40, so as to prevent the rotating member 4 from rotating excessively.

In some examples, as shown in fig. 15, the limiting mechanism further includes a second stop block 303, the second stop block 303 is located at the second end of the support body 30, and a second limiting groove 3031 with an open top is provided on the second stop block 303; as can be further seen from fig. 16, the end of the third connecting portion 43 is connected to the second limiting rib 430, and the second limiting rib 430 is located in the second limiting groove 3031.

When the rotating body 40 rotates in the vertical direction, the second end of the rotating body 40 can move up and down in the second stopper groove 3031, and the interference to the rotation of the rotating body 40 is prevented by providing a top opening at the top of the second stopper groove 3031.

The second limiting rib 430 is matched with the second limiting groove 3031, and can limit the second end of the rotating member 4 in the horizontal direction, so that the rotating member can only rotate in the vertical direction and cannot move in the horizontal direction.

The length of the second restriction groove 3031 in the vertical direction may satisfy the following condition:

in the on state, the bottom wall of the second end of the rotating body 40 is overlapped with the bottom wall of the second stopper groove 3031, and the top wall of the second end of the rotating body 40 is located below the top opening of the second stopper groove 3031. And when the switch is turned off, the bottom wall of the second end of the rotating body 40 is suspended, a part of the second end of the rotating body 40 is located in the second limiting groove 3031, and the other part of the second end of the rotating body is located above the second limiting groove 3031 through the top opening of the second limiting groove 3031.

In some examples, as shown in fig. 15, the limiting mechanism further includes two third limiting ribs 304 and a third limiting groove 305, the two third limiting ribs 304 are oppositely arranged on the supporting body 30, and the third limiting groove 305 is located between the two third limiting ribs 304 and has a top opening.

As can be seen from fig. 10 and 16, the rotating body portion 40 includes an N-pole connecting portion 401, an intermediate connecting portion 402, and an L-pole connecting portion 403 which are connected in sequence, and both sides of the intermediate connecting portion 402 and the N-pole connecting portion 401 and the L-pole connecting portion 403 form a clearance cavity 404, respectively.

Wherein, the second ends of the N-pole connecting portion 401 and the L-pole connecting portion 403 are respectively connected to a first connecting portion 41, the second end of the intermediate connecting portion 402 is connected to a third connecting portion 43, and the rotating shaft 400 is provided by the first ends of the N-pole connecting portion 401, the intermediate connecting portion 402 and the L-pole connecting portion 403;

the intermediate connecting portion 402 is retained in the third retaining groove 305, and each of the two third retaining ribs 304 extends through the corresponding clearance cavity 404.

The intermediate connecting portion 402 of the rotating body portion 40 is engaged with the third limit groove 305, and the third limit rib 304 is engaged with the clearance cavity 404, so that the portion of the rotating member 4 between the first end and the second end thereof can be limited in the horizontal direction, and can only rotate in the vertical direction, and cannot be displaced in the horizontal direction.

The length of the third stopper groove 305 in the vertical direction may satisfy the following condition: in the off state of the switch, the bottom wall of the intermediate connection portion 402 is suspended, and the top wall of the intermediate connection portion 402 is located below the top opening of the third limiting groove 305.

As shown in fig. 11, the link member 5 includes: a first rotating shaft section 51, a first side support section 52, a second rotating shaft section 53 and a second side support section 54 which are connected in sequence; both sides of the first rotating shaft section 51 are respectively rotatably connected with a first connecting position 201; the second shaft section 53 is rotatably connected to a second connecting portion 42 on each of its two sides.

In some examples, as shown in fig. 15, each of the two third limiting ribs 304 is provided with an avoiding groove 3040, and the avoiding groove 3040 is used for accommodating a portion of the second rotating shaft section 53 between the two second connecting portions 42.

In the embodiment of the present invention, the avoiding grooves 3040 on the two third limiting ribs 304 and the rotating grooves 422 on the two second stopping blocks 303 are always communicated with each other in the switch-on state and the switch-off state. The avoidance groove 3040 avoids the interference of the third limiting rib 304 to the second rotation shaft section 53, so that the assembly among the support body 3, the rotation member 4, and the link member 5 is more compact.

Further, a side wall of the avoiding groove 3040 away from the first end of the supporting body 30 is configured to be an inclined surface, and a top end of the inclined surface is further away from the first end of the supporting body 30 relative to a bottom end thereof, so as to facilitate the assembly of the second rotating shaft section 53 to the inside of the avoiding groove 3040.

In some implementations, for the functional module 7, as shown in fig. 5, it includes: a movable contact block 71, an inlet terminal assembly 72, an outlet terminal assembly 73 and a flexible connecting piece 74; two ends of the flexible connecting piece 74 are respectively welded to the wire inlet terminal assembly 72 and the movable contact block 71, so that the movable contact block 71 is electrically conducted with the wire inlet terminal assembly 72; the outlet terminal assembly 73 has a stationary contact 730 disposed thereon.

By arranging the flexible connecting piece 74, two ends of the flexible connecting piece are respectively connected with the incoming line terminal assembly 72 and the movable contact block 71 in a welding mode, so that the movable contact block 71 is effectively prevented from being separated from the incoming line terminal assembly 72 in the switching-on or switching-off process of the switch, and the problem of arc discharge caused by the separation phenomenon is effectively avoided.

Some suitable flexible connectors 74 include, but are not limited to, a plurality of flexible wires, etc., where the greater the number of flexible wires, the more flexible the flexible wire, and the more effective it is in resolving the separation problem described above.

Illustratively, as shown in fig. 5, the inlet terminal assembly 72 includes an inlet terminal 721 and an inlet conductive tab 722, the inlet conductive tab 722 being connected to the inlet terminal 721 and having a horizontal connection portion located above the inlet terminal 721, the horizontal connection portion of the inlet conductive tab 722 being welded to one end of the flexible connector 74. The outlet terminal assembly 73 includes an outlet terminal 731 and an outlet conductive sheet 732, the outlet conductive sheet 732 is connected to the outlet terminal 731 and has a horizontal connection portion located above the outlet terminal 731, and a stationary contact 730 is disposed on a top wall of the horizontal connection portion of the outlet conductive sheet 732.

In some implementations, as shown in fig. 1, a housing 1 according to an embodiment of the present invention includes: a face cover 11, a first side case 12, and a second side case 13; the first side shell 12 and the second side shell 13 are matched and butted to form a cavity with an upper opening; the face cover 11 is connected to the first side case 12 and the second side case 13 to close the upper opening; opposite sides of the button 2 are hinged to the first side case 12 and the second side case 13, respectively, and the face cover 11 has a button through-hole 110 exposing the button 2.

Illustratively, the first side casing 12 and the second side casing 13 have the same structure and are symmetrically arranged on both sides, and the connection manner between the first side casing 12 and the second side casing 13 includes, but is not limited to: the fasteners may be connected (e.g., the fasteners may be screws 921, pins, etc.), snapped, hook and loop connections, etc.

The face cover 11 is connected to the first side shell 12 and the second side shell 13 at the same time, in some examples, two opposite sides of the face cover 11 are connected to a connection board at the same time, the connection board is provided with two first connection structures, and two opposite sides of the first side shell 12 and the second side shell 13 are respectively provided with one second connection structure, so that the two first connection structures on each connection board are respectively connected to one second connection structure on the corresponding side of the first side shell 12 and the second side shell 13.

For example, the connection between the first connection structure and the second connection structure includes but is not limited to: joint, screw connection, bonding etc. to joint mode for example, one of first connection structure and second connection structure designs for the buckle, and another design is the card hole can.

In the embodiment of the present invention, the functional module 7 includes an N-pole functional module and an L-pole functional module, both of which include the above-mentioned movable contact block 71, an incoming terminal assembly 72 and an outgoing terminal assembly 73; wherein, the inlet terminal assembly 72 and the outlet terminal assembly 73 corresponding to the N-pole functional module are embedded inside the first side of the supporting body 30; a line terminal assembly 72 corresponding to the L-pole functional module 7 and said line terminal assembly are embedded inside the second side of the support body 30.

Illustratively, as can be further appreciated in conjunction with fig. 15, two terminal-receiving cavities 306 are disposed on each of the opposing first and second sides of the support body 30, and the two terminal-receiving cavities 306 disposed on the first side are disposed side-by-side and separated by a partition 307. As shown in fig. 5, the incoming terminal 721 of the incoming terminal assembly 72 is located in one of the terminal receiving cavities 306, and the horizontal connection portion of the incoming conductive sheet 722 of the incoming terminal assembly 72 penetrates the terminal receiving cavity 306 and overlaps the top wall of the support body 30 along the horizontal direction. Accordingly, the outlet terminal 731 of the outlet terminal assembly 73 is located in the other terminal receiving cavity 306, and the horizontal connecting portion of the outlet conductive strip 732 of the outlet terminal assembly 73 penetrates the terminal receiving cavity 306 and overlaps the top wall of the support body 30 in the horizontal direction.

The structure arrangement enables the internal structure of the switch to be more compact, the space inside the shell 1 is efficiently utilized, and the size of the switch is favorably reduced. In order to stably mount each terminal assembly to the support body 3, the terminal assembly may be fixed by a fixing member.

In some examples, as shown in fig. 1, the fixing member is a screw 921, the side portion of the supporting body 3 is extended to be flush with the corresponding side walls of the first side case 12 and the second side case 13, a screw through hole 922 is designed on the side wall of the first side case 12 and the side portion of the supporting body 3, for example, half of the screw through hole 922 is arranged on the side wall of the first side case 12, and the other half of the screw through hole 922 is arranged on the side wall of the supporting body 3.

Another screw through hole 922 is designed on the side wall of the second side case 13 and the side of the supporting body 3. A screw 921 is used to penetrate through the screw through hole 922 and extend into the terminal accommodating cavity 306 to be in threaded connection with one end of the terminal of the corresponding terminal assembly, and the other end of the terminal is abutted against the partition plate 307 on the supporting body 3, thereby fixing the terminal assembly on the supporting body 3. Further, to enhance aesthetics, the screw vias 922 may be counter bored.

In summary, the switch provided by the embodiment of the invention has at least the following advantages through the cooperation of the rotating member 4, the link member 5 and the elastic member 6: stable and large pressure is provided between the movable contact 710 and the fixed contact 730, so that the movable contact can bear large current to meet the use requirement of a high-power electrical appliance; the problem of bouncing and arcing between the movable contact 710 and the fixed contact 730 is effectively solved; the problem of separation of the moving contact 710 and the incoming terminal assembly 72 is effectively solved; the movable contact 710 and the fixed contact 730 can be quickly disconnected; the number of parts is small, the structure is simple and compact, and the stability is strong; the service life is longer.

In embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" means two or more unless expressly limited otherwise.

The above description is only for facilitating the understanding of the technical solutions of the present invention by those skilled in the art, and is not intended to limit the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A switch, characterized in that the switch comprises: the button switch comprises a shell (1), a button (2), a support body (3), a transmission module (01), a function module (7) and a torsion spring piece (8), wherein the support body, the transmission module (01), the function module (7) and the torsion spring piece (8) are positioned in the shell (1), and the function module (7) comprises a movable contact block (71) with a movable contact (710) and a fixed contact (730) matched with the movable contact (710);

the button (2) is hinged to the shell (1), the transmission module (01) is movably connected to the support body (3), the button (2) is further connected with the movable contact block (71) through the transmission module (01), and the transmission module (01) is configured to convert the rotation of the button (2) into the rotation of the movable contact block (71) so that the movable contact (710) approaches to or departs from the fixed contact (730);

the torsion spring piece (8) is arranged between the transmission module (01) and the movable contact block (71), and the torsion spring piece (8) is configured to apply pressure on the end part of the movable contact block (71) where the movable contact (710) is located, and the pressure is close to the fixed contact (730).

2. The switch of claim 1, wherein the movable contact block (71) comprises a first connection section (711), a hinge section (712) and a second connection section (713) which are connected in sequence, the first connection section (711) is electrically connected with the incoming terminal assembly (72) of the function module (7), the hinge section (712) is connected with the first connection section (41) of the transmission module (01) through a pin shaft (91), and the movable contact (710) is arranged on the bottom wall of one end of the second connection section (713) far away from the hinge section (712);

the torsion spring member (8) includes: the spring body part (81) is connected to the first connecting part (41), the first arm part (82) abuts against a wall of the transmission module (01) adjacent to the first connecting part (41), and the second arm part (83) abuts against a top wall of the second connecting section (713).

3. A switch according to claim 2, characterized in that said first connection portion (41) comprises: the hinge structure comprises two hinge blocks (411) which are symmetrically arranged, wherein an accommodating cavity is formed between the two hinge blocks (411);

the hinged section (712) is connected with the two hinged blocks (411) in the accommodating cavity through the pin shaft (91);

the spring body part (81) is located on the hinge block (411) or the pin shaft (91).

4. A switch according to claim 3, wherein the hinge block (411) comprises a hinge portion (4111) and a boss portion (4112), the boss portion (4112) being connected to the hinge portion (4111) within the housing cavity;

the hinge section (712) is located between two of the boss portions (4112), the spring body portion (81) is sleeved on at least one of the boss portions (4112), and the first arm portion (82) abuts against a stop wall (4001) of the accommodating cavity facing the boss portion (4112).

5. Switch according to claim 4, characterized in that said reed body (81) comprises: a first spring body (811) and a second spring body (812) which are arranged oppositely and independent from each other;

the first arm (82) includes: a first (821) and a second (822) abutment arm arranged opposite and independent from each other;

the second arm (83) includes: a first side arm segment (831), an abutment arm segment (832) and a second side arm segment (833) connected in sequence;

the first abutting arm (821) and the first side arm section (831) are respectively connected to two sides of the first spring body (811), and the second abutting arm (822) and the second side arm section (833) are respectively connected to two sides of the second spring body (812);

first spring body (811) with second spring body (812) correspond the cover respectively and locate one on axle sleeve portion (4112), first butt arm (821) with second butt arm (822) all the butt in backstop wall (4001) and be located the both sides of articulated section (712), first side arm section (831) with second side arm section (833) are located respectively the both sides of second linkage segment (713), just butt arm section (832) butt in the roof of second linkage segment (713).

6. The switch according to any of claims 1-5, characterized in that the transmission module (01) comprises a rotation element (4), a link element (5) and an elastic element (6);

the rotating part (4) is movably connected to the supporting body (3), so that the rotating part (4) can rotate by taking a first end of the rotating part (4) as a rotating shaft (400), and a second end of the rotating part (4) is connected with the movable contact block (71) through a first connecting part (41);

the first end of the connecting rod piece (5) is rotatably connected with the first connecting position (201) of the button (2), and the second end of the connecting rod piece (5) is rotatably connected with the second connecting part (42) of the rotating piece (4); the first end of the elastic element (6) is connected with the second connecting position (202) of the button (2), and the second end of the elastic element (6) is connected with the third connecting part (43) of the rotating element (4); the connecting rod piece (5) and the elastic piece (6) can convert the rotation of the button (2) into the rotation of the rotating piece (4), so that the movable contact (710) on the movable contact block (71) approaches to or departs from the fixed contact (730);

when the switch is in an on state, the elastic piece (6) is in a first stretching state, and the button (2) stops being located at a switch-on position under the combined action of the connecting rod piece (5) and the shell (1);

when the switch is in an off state, the elastic piece (6) is in a second stretching state, the button (2) stops being located at a brake separating position under the combined action of the connecting rod piece (5) and the shell (1), and the stretching degree corresponding to the first stretching state is larger than the stretching degree corresponding to the second stretching state.

7. Switch according to claim 6, characterized in that said rotary member (4) comprises: a rotating body part (40), two first connecting parts (41), two second connecting parts (42) and a third connecting part (43);

a first end of the rotating body part (40) is used as the rotating shaft (400) to be lapped on the supporting body (3);

the second end of the rotating body part (40) is connected with the two first connecting parts (41) and the third connecting part (43) at the same time, and the two first connecting parts (41) are symmetrically distributed on two sides of the third connecting part (43);

the two second connecting parts (42) are connected to the top wall of the rotating body part (40), and the two second connecting parts (42) are oppositely arranged at two sides of the rotating body part (40);

the movable contact block (71) comprises an N-pole movable contact block (71) and an L-pole movable contact block (71) which are symmetrically arranged, the N-pole movable contact block (71) is connected with one of the first connecting parts (41), and the L-pole movable contact block (71) is connected with the other first connecting part (41).

8. The switch according to claim 7, wherein each of said first connection portions (41) comprises two hinged blocks (411), one end of said two hinged blocks (411) being connected to the second end of said rotating body portion (40), said two hinged blocks (411) forming a housing cavity therebetween;

the side wall of the second end of the rotating body part (40) positioned in the accommodating cavity is used as a stopping wall (4001), and the stopping wall (4001) is used for being abutted with the first arm part (82) of the torsion spring piece (8).

9. Switch according to claim 8, characterised in that a recess (4003) is provided in the top wall of the second end of the rotating body (40) between the two hinge blocks (411), said recess (4003) being intended to receive the end of the first arm (82).

10. The switch according to any of claims 7 to 9, characterized in that said movable contact block (71) comprises a first connection section (711), a hinge section (712) and a second connection section (713) connected in sequence;

the hinged section (712) is connected with the first connecting part (41) through a pin shaft (91);

the first connecting section (711) is electrically connected with an inlet terminal assembly (72) of the functional module (7), and the first connecting section (711) extends to the lower part of the rotating body part (40) through the first connecting part (41) so as to be abutted against the top wall of the rotating body part (40) in a switch off state, so that the torsion spring piece (8) is always in a compressed state;

the second connection section (713) extends to the outside of the rotating body portion (40) through the first connection portion (41), and the movable contact (710) is disposed on one end bottom wall of the second connection section (713) located outside of the rotating body portion (40).

11. A switch according to claim 10, characterized in that in the on-state of the switch there is a gap H between the top wall of the first connecting section (711) and the bottom wall at the corresponding position of the rotating body part (40), said gap H allowing the movable contact block (71) to have a set rotation margin.

12. The switch of claim 11, wherein the gap H is 0.3mm to 0.5mm in size.

13. Switch according to claim 10, characterized in that said functional module (7) further comprises: and two ends of the flexible connecting piece (74) are respectively welded to the incoming terminal assembly (72) and the movable contact block (71), so that the movable contact block (71) is electrically connected with the incoming terminal assembly (72).