CN218602320U

CN218602320U - Rotary switch

Info

Publication number: CN218602320U
Application number: CN202222466998.7U
Authority: CN
Inventors: 林富; 周金勇
Original assignee: Yueqing Weixin Electronic Co ltd
Current assignee: Yueqing Weixin Electronic Co ltd
Priority date: 2022-09-16
Filing date: 2022-09-16
Publication date: 2023-03-10
Anticipated expiration: 2032-09-16

Abstract

The application relates to the technical field of switches, and discloses a rotary switch which comprises a shell, wherein one side of the shell is provided with a containing groove, the bottom wall of the containing groove is provided with a first static contact piece and a second static contact piece, the shell is covered by a cover body, a knob is rotationally arranged in the containing groove, the knob penetrates through the cover body and extends out of the shell, the bottom of the knob is provided with a fixing hole, and an elastic sheet used for electrically connecting the first static contact piece and the second static contact piece is arranged in the fixing hole; be provided with the operation piece that the cross-section is the V type on the shell fragment, the lid is provided with the spacing ring towards the terminal surface of shell fragment, the spacing groove that supplies the interior embedding of operation piece is seted up towards the terminal surface of shell fragment to the spacing ring, when the operation piece is embedded into the spacing inslot, first static contact and second static contact all contradict with the shell fragment, and this application has the knob and is difficult pivoted effect when being touched by the mistake.

Description

Rotary switch

Technical Field

The application relates to the technical field of switches, in particular to a rotary switch.

Background

At present, a rotary switch is one of switches, and the rotary switch controls the on-off of a main contact by using a rotary handle.

Rotary switch includes the casing among the correlation technique, and the casing upper cover is equipped with the lid, is provided with static contact and conducting strip in the casing, and the rotation is provided with the shell fragment in the casing, and the rotation is connected with and is used for driving shell fragment pivoted pivot in the casing, and the lid is passed to the external world to the one end of pivot, and the pivot rotates the in-process and can make the shell fragment conflict static contact and conducting strip simultaneously.

In the process of implementing the application, the inventor finds that at least the following problems exist in the technology: in the rotating process of the rotating shaft, although the elastic sheet can simultaneously abut against the static contact and the conducting sheet, when a worker carelessly touches the rotating shaft, the static contact and the conducting sheet are easily not electrically connected, even if a circuit is disconnected.

SUMMERY OF THE UTILITY MODEL

In order to improve the switch and easily break because of the pivot mistake touches, this application provides a rotary switch.

The application provides a rotary switch adopts following technical scheme:

a rotary switch comprises a shell, wherein one side of the shell is provided with a containing groove, the bottom wall of the containing groove is provided with a first static contact piece and a second static contact piece, the shell is covered by a cover body, a knob is rotationally arranged in the containing groove, the knob penetrates through the cover body and extends out of the shell, the bottom of the knob is provided with a fixing hole, and an elastic piece used for electrically connecting the first static contact piece and the second static contact piece is arranged in the fixing hole; the spring piece is provided with an operation block with a V-shaped cross section, the end face of the cover body facing the spring piece is provided with a limiting ring, the end face of the limiting ring facing the spring piece is provided with a limiting groove for the operation block to be embedded, and when the operation block is embedded into the limiting groove, the first static contact and the second static contact are both abutted to the spring piece.

By adopting the technical scheme, the elastic sheet is arranged in the fixed hole, when the knob is rotated by a worker, the elastic sheet can be driven to rotate, when the operation block is embedded into the limiting groove, the inner wall of the limiting groove limits the elastic sheet, namely, the knob is limited, so that the knob is not easy to rotate when being touched by mistake, and at the moment, the elastic sheet is contacted with the first static contact piece and is simultaneously contacted with the second static contact piece, namely, the first static contact piece is electrically connected with the second static contact piece; otherwise, the first static contact is disconnected from the second static contact.

Optionally, the central axis of the accommodating groove passes through the first static contact, the second static contact is provided with a plurality of second static contacts, and the plurality of second static contacts are distributed along the axis array of the accommodating groove.

Optionally, the elastic sheet includes a first elastic arm located in the fixing hole and a second elastic arm located outside the fixing hole, and a bending portion connecting the first elastic arm and the second elastic arm is provided between the first elastic arm and the second elastic arm.

Optionally, a conductive block for abutting against the first static contact is arranged on the lower end face of the second elastic arm.

By adopting the technical scheme, when the knob rotates, the conductive block is always contacted with the elastic sheet, and the elastic sheet is electrically connected with the first static contact sheet all the time; set up the conducting block in addition, reduce the contact area of shell fragment and first static contact, rotate at the shell fragment and reduce the wearing and tearing of shell fragment along with the knob pivoted in-process.

Optionally, the lower end surface of the second elastic arm is detachably connected with a silver contact which is used for abutting against the second static contact.

Through adopting above-mentioned technical scheme, set up silver contact, reduce the contact area of shell fragment and first movable contact, rotate the wearing and tearing of in-process shell fragment along with the knob pivoted at the shell fragment, when silver contact damaged in addition, also be convenient for change silver contact.

Optionally, a protruding portion is arranged below the second elastic arm, a protruding block is arranged on the bottom wall of the accommodating groove, and the protruding block is located on a rotation path of the protruding portion between two adjacent second static contacts.

Through adopting above-mentioned technical scheme, when the bellying rotated and by the lug during the time of jacking, even the second elastic arm was by the jack-up, made silver contact not with storage tank bottom contact, reduced the wearing and tearing of silver contact at the shell fragment rotation in-process, improved silver contact's life.

Optionally, one end of the second elastic arm, which is far away from the bending portion, is provided with a limiting portion, the limiting portion extends into the fixing hole, and a limiting block located between the limiting portion and the bending portion is arranged on the inner wall of the fixing hole.

Through adopting above-mentioned technical scheme, when the second elastic arm was by jack-up at the rotation in-process, the second elastic arm contradicts with the stopper, and restriction second elastic arm continues deformation, has spacing effect.

Optionally, a deformable clamping block is arranged on the circumferential surface of the cover body, and a clamping groove for embedding the clamping block is formed in the inner circumferential surface of the containing groove.

Through adopting above-mentioned technical scheme, in the fixture block embedded into the draw-in groove, be connected lid and casing, make lid and casing difficult separation.

Optionally, a positioning block is arranged on the circumferential surface of the cover body, and a positioning groove for embedding the positioning block is formed in the end surface of the shell.

By adopting the technical scheme, the cover body is not easy to rotate relative to the shell body after the positioning block is embedded into the positioning groove; set up locating piece and constant head tank for instruct the mounting means of casing and lid, have the foolproof effect.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the elastic sheet is arranged in the fixed hole, when the knob is rotated by a worker, the elastic sheet can be driven to rotate, when the operation block is embedded into the limiting groove, the inner wall of the limiting groove limits the elastic sheet, namely the knob is limited, so that the knob is not easy to rotate when being touched by mistake, and at the moment, the elastic sheet is in contact with the second static contact sheet when being in contact with the first static contact sheet, namely the first static contact sheet is electrically connected with the second static contact sheet; otherwise, the first static contact is disconnected from the second static contact;

2. the second elastic arm is jacked up in the rotating process by arranging the convex block and the convex part, so that the abrasion of the silver contact can be reduced;

3. the clamping block and the clamping groove are arranged, so that the cover body is conveniently connected with the shell; the positioning groove and the positioning block are arranged, so that the cover body and the shell are not easy to rotate relatively.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present application;

FIG. 2 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is an exploded view highlighting the connection of the cover to the housing;

fig. 4 is an exploded view highlighting the relationship of the cover and the spring.

Reference numerals: 1. a housing; 11. a containing groove; 12. a first mounting groove; 13. a first mounting hole; 14. a second mounting groove; 15. a second mounting hole; 16. a bump; 17. a card slot; 18. positioning a groove; 2. a cover body; 21. a clamping block; 22. positioning blocks; 23. perforating; 24. a limiting ring; 25. a limiting groove; 3. a knob; 31. a fixed shaft; 32. a fixed block; 321. a fixing hole; 322. a limiting block; 4. a first static contact; 41. a first wiring portion; 42. a first conductive portion; 5. a second static contact; 51. a second wiring portion; 52. a second conductive portion; 6. a spring plate; 61. a first resilient arm; 62. a bent portion; 63. a second elastic arm; 631. a limiting part; 64. an operation block; 65. a conductive block; 66. a silver contact; 67. a raised portion.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The present embodiment discloses a rotary switch. Referring to fig. 1 and 2, a rotary switch includes a housing 1, a cover 2, a knob 3, a first static contact 4, a second static contact 5, and a spring 6.

Referring to fig. 2 and 3, a containing groove 11 is formed in the housing 1, a first installing groove 12 is formed in the bottom wall of the housing 1, and an axis of the containing groove 11 passes through the first installing groove 12. A first mounting hole 13 is formed in the bottom wall of the first mounting groove 12. The first stationary contact 4 includes a first wiring portion 41 and a first conductive portion 42 which are integrally formed, and the first wiring portion 41 and the first conductive portion 42 are perpendicular to each other. The first wire connecting portion 41 is inserted into the first mounting hole 13, and the first conductive portion 42 is fitted into the first mounting groove 12.

Referring to fig. 2 and 3, eight second mounting grooves 14 are formed in the bottom wall of the housing 1, and eight first mounting grooves 12 are circumferentially distributed along the axis of the accommodating groove 11 in an array manner. A second mounting hole 15 is formed on the bottom wall of each second mounting groove 14.

Referring to fig. 2 and 3, the second stationary contact piece 5 includes a second wire connection portion 51 and a second conductive portion 52 which are integrally formed, and the second wire connection portion 51 and the second conductive portion 52 are perpendicular to each other. The second wire connecting portion 51 is inserted into the second mounting hole 15, and the second conductive portion 52 is fitted into the second mounting groove 14. In other embodiments, the second mounting holes 15, the second mounting grooves 14, and the second stationary contacts 5 may be provided in six, twelve, or other numbers.

Referring to fig. 2 and 4, the knob 3 is rotatably disposed in the receiving groove 11, the knob 3 includes a fixing shaft 31 and a fixing block 32 which are integrally formed, and a circumferential surface of the fixing shaft 31 is connected to the fixing block 32. The lower end surface of the fixing block 32 is opened with a fixing hole 321, a part of the fixing hole 321 extends to the fixing shaft 31, and a part of the fixing hole 321 penetrates through the fixing block 32.

Referring to fig. 2 and 4, the elastic sheet 6 is disposed in the fixing hole 321. The elastic sheet 6 includes a first elastic arm 61, a bent portion 62 and a second elastic arm 63 which are integrally formed. The first elastic arm 61 is fitted into the fixing hole 321, and abuts against the lower end surface of the fixed shaft 31. An operating block 64 is fixedly connected to an end of the first elastic arm 61 away from the bending portion 62, and the cross section of the operating block 64 is V-shaped.

Referring to fig. 2 and 4, the second elastic arm 63 is located below the fixed block 32, a conductive block 65 is fixedly connected to a lower end surface of the second elastic arm 63, and an end of the conductive block 65 away from the second elastic arm 63 is an arc-shaped surface. The end surface of the conductive block 65 far away from the second elastic arm 63 always abuts against the first conductive part 42.

Referring to fig. 2 and 4, the second elastic arm 63 is detachably connected to a silver contact 66, and an operation hole is formed in a lower end surface of the second elastic arm 63 and located between the conductive block 65 and the position limiting portion 631. One end of the silver contact 66 passes through the operation hole, and the second elastic arm 63 is connected with the silver contact 66 by riveting. When the silver contact 66 is in contact with the second conductive part 52, the first stationary contact 4 is electrically connected to the second stationary contact 5, and the rotary switch is in an energized state.

Referring to fig. 2 and 4, a position limiting portion 631 is fixedly connected to an end of the second elastic arm 63 away from the bending portion 62. The stopper 631 extends into the fixing hole 321 toward the first elastic arm 61. The fixing hole 321 is fixedly connected with a limiting block 322, and the limiting block 322 is located between the limiting portion 631 and the bending portion 62, so that the second elastic arm 63 can move up and down within a limited range of the limiting block 322 and the inner wall of the fixing hole 321.

Referring to fig. 3, fixedly connected with a plurality of lug 16 on the diapire of storage tank 11, the quantity of lug 16 is the same with the quantity of second static contact 5, and lug 16 sets up to eight in this application, and eight lugs 16 are along the axis circumference array distribution of storage tank 11. The projection 16 comprises a slope in the circumferential direction of the centre line of the housing 1. The convex blocks 16 and the second static contact pieces 5 are arranged in a staggered mode.

Referring to fig. 2 and 4, a conductive block 65 is fixedly connected to a lower end surface of the second elastic arm 63, and one end of the conductive block 65, which is far away from the second elastic arm 63, is an arc-shaped surface. The projection 67 is located between the conductive block 65 and the silver contact 66, and the bump 16 is located on the rotation path of the projection 67. When the silver contact 66 rotates from one second conductive part 52 to the adjacent second conductive part 52, the bump 16 and the protrusion 67 cooperate to jack up the second elastic arm 63, so that the silver contact 66 does not collide with the bottom wall of the accommodating groove 11, and the abrasion of the silver contact 66 is reduced. The second elastic arm 63 is lifted up by the projection 67 and the projection 16, and the rotary switch is in the power-off state.

Referring to fig. 2 and 3, the cover 2 is covered on the housing 1 to seal the receiving groove 11. The circumferential surface of the shell 1 is provided with a clamping groove 17, and the clamping groove 17 is in a ring groove shape. The circumferential surface of the cover body 2 is fixedly connected with a fixture block 21, the fixture block 21 is in a ring block shape, and the fixture block 21 can deform. When the cover 2 is connected to the housing 1, the locking block 21 is inserted into the locking groove 17.

Referring to fig. 2 and 3, a positioning block 22 is also fixedly connected to the circumferential surface of the lid body 2. The inner circumferential surface of the accommodating groove 11 is provided with positioning grooves 18, and the positioning grooves 18 penetrate through the cover body 2 along the radial direction of the accommodating groove 11. When the cover 2 is connected to the housing 1, the positioning block 22 is inserted into the positioning groove 18.

Referring to fig. 2 and 4, the cover 2 is provided with a through hole 23, and the through hole 23 allows the fixing shaft 31 to pass through. The end face of the cover body 2 facing the fixing block 32 is fixedly connected with a limiting ring 24, and the axis of the limiting ring 24 is collinear with the axis of the through hole 23. Eight limiting grooves 25 are formed in the end face, facing the fixing block 32, of the limiting ring 24, and the eight limiting grooves 25 are distributed in an array mode along the axis circumference of the fixing ring. The limiting groove 25 is in a triangular groove shape. When the operation block 64 is inserted into the triangular groove 25, the silver contact 66 collides with the second stationary contact 5.

The implementation principle of the rotary switch in the embodiment of the application is as follows: when the rotary switch is switched from the power-on state to the power-off state, the knob 3 is driven to rotate, the knob 3 drives the elastic sheet 6 to rotate, the rotating lug 16 is abutted to the protruding part 67, the knob 3 continues to rotate, the protruding part 67 and the protruding part 16 jack up the second elastic arm 63, and at the moment, the rotary switch is in the power-off state.

When the rotary switch is switched from the power-off state to the power-on state, the drive knob 3 is rotated, so that the second elastic arm 63 is not jacked up by the projection 16 any more, when the silver contact 66 is butted against the second static contact 5, the first static contact 4 is electrically connected with the second static contact 5, and at the moment, the rotary switch is in the power-on state.

The above description is only a preferred embodiment of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements and the like made within the design concept of the present application should be included in the protection scope of the present application.

Claims

1. The utility model provides a rotary switch, includes casing (1), storage tank (11) have been seted up to one side of casing (1), be provided with first static contact (4) and second static contact (5) on the diapire of storage tank (11), casing (1) upper cover has closed lid (2), storage tank (11) internal rotation is provided with knob (3), knob (3) pass lid (2) and stretch out outside casing (1), fixed orifices (321), its characterized in that have been seted up to the bottom of knob (3): an elastic sheet (6) for electrically connecting the first static contact sheet (4) and the second static contact sheet (5) is arranged in the fixing hole (321); be provided with operation piece (64) that the cross-section is the V type on shell fragment (6), lid (2) are provided with spacing ring (24) towards the terminal surface of shell fragment (6), spacing ring (24) are offered towards the terminal surface of shell fragment (6) and are supplied spacing groove (25) of embedding in operation piece (64), and when operation piece (64) was embedded into spacing groove (25), first static contact (4) and second static contact (5) all contradict with shell fragment (6).

2. A rotary switch according to claim 1, wherein: the axis of storage tank (11) passes first static contact (4), second static contact (5) are provided with a plurality of, a plurality of second static contact (5) are along the axis array distribution of storage tank (11).

3. A rotary switch according to claim 1, wherein: the elastic sheet (6) comprises a first elastic arm (61) located in the fixing hole (321) and a second elastic arm (63) located outside the fixing hole (321), and a bending part (62) for connecting the first elastic arm (61) and the second elastic arm (63) is arranged between the first elastic arm and the second elastic arm.

4. A rotary switch according to claim 3, wherein: and a conductive block (65) which is used for abutting against the first static contact piece (4) is arranged on the lower end surface of the second elastic arm (63).

5. A rotary switch according to claim 3, wherein: the lower end face of the second elastic arm (63) is detachably connected with a silver contact (66) which is used for abutting against the second static contact piece (5).

6. A rotary switch according to claim 5, wherein: a protruding portion (67) is arranged below the second elastic arm (63), a protruding block (16) is arranged on the bottom wall of the accommodating groove (11), the protruding block (16) is located between two adjacent second static contact pieces (5), and the protruding block (16) is located on the rotating path of the protruding portion (67).

7. A rotary switch according to claim 6, wherein: one end of the second elastic arm (63) far away from the bending part (62) is provided with a limiting part (631), the limiting part (631) extends into the fixing hole (321), and a limiting block (322) located between the limiting part (631) and the bending part (62) is arranged on the inner wall of the fixing hole (321).

8. A rotary switch according to claim 1, wherein: the circumferential surface of the cover body (2) is provided with a deformable clamping block (21), and the inner circumferential surface of the accommodating groove (11) is provided with a clamping groove (17) for embedding the clamping block (21).

9. A rotary switch according to claim 1, wherein: the positioning block (22) is arranged on the circumferential surface of the cover body (2), and the positioning groove (18) for embedding the positioning block (22) is formed in the end face of the shell (1).