CN217035498U - Rotary switch - Google Patents

Abstract

The utility model relates to a technical field of switch discloses a rotary switch, and it includes fixed connection's base and switch cover, the base internal rotation is provided with the roating seat, be provided with the movable contact spring of two at least mutual intercommunications on the roating seat, be provided with on the base and rotate two at least conductive shell fragment of butt with the movable contact spring, fixedly connected with is used for the electrically conductive stationary blade of connecting circuit wire on the conductive shell fragment, the base is stretched out to the one end that electrically conductive shell fragment was kept away from to the stationary blade, set up the constant head tank that supplies stationary blade one end embedding on the base. This application has the effect that can with wire fastening connection.

Description

Rotary switch

Technical Field

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

Background

The switch is a common electronic element in circuit control and is used for controlling the on-off of a circuit, and the rotary switch is one of the switches and is mainly applied to components such as household appliances, car lamps, digital cameras, chemical pipelines and the like.

Among the correlation technique, rotary switch includes base 1 and switch cover 2, rotates on the base and is provided with roating seat 3, fixedly connected with rotation axis 31 on the roating seat 3, and the one end that the roating seat 3 was kept away from to rotation axis 31 stretches into switch cover 2. Three mutually communicated movable contact pieces 321 are arranged on the rotary seat 3, the movable contact pieces 321 are positioned on the circumferential side wall of the rotary seat 3, and the base 1 is provided with a conductive elastic sheet 4 which is in rotary butt joint with the movable contact pieces 321. The side wall of the base 1 is provided with a connecting hole 15 communicated with the conductive elastic sheet 4, a connecting gap 16 for a lead to be clamped in is formed between the conductive elastic sheet 4 and the inner wall of the base 1, and the lead penetrates through the connecting hole 15 and then is clamped in the connecting gap 16, so that the rotary switch is electrically connected with a circuit.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: the width of the connecting gap is relatively fixed, and when the conducting wire is thin, the connecting gap is not easy to clamp the conducting wire, so that the conducting wire is not tightly connected with the rotary switch and needs to be improved.

SUMMERY OF THE UTILITY MODEL

In order to make the connection of wire and rotary switch more firm, this application provides a rotary switch.

The application provides a rotary switch adopts following technical scheme:

a rotary switch comprises a base and a switch cover which are fixedly connected, wherein a rotary seat is arranged in the base in a rotating mode, at least two movable contact pieces which are communicated with each other are arranged on the rotary seat, at least two conductive elastic pieces which are in butt joint with the movable contact pieces in a rotating mode are arranged on the base, a conductive fixing piece which is used for connecting circuit wires is fixedly connected onto the conductive elastic pieces, one end, far away from the conductive elastic pieces, of the fixing piece extends out of the base, and a positioning groove for embedding one end of the fixing piece is formed in the base.

By adopting the technical scheme, the movable contact pieces can be driven to rotate by rotating the rotating seat, so that the two movable contacts are respectively abutted against the adjacent conductive elastic pieces, and the conduction between the two conductive elastic pieces is realized. The fixing piece extending out of the base can be connected with a conductive sleeve connected with a circuit lead, so that the switch is connected in an equipment circuit. Different wires can be connected on the conductive sleeve, so that the rotary switch can be connected in circuits with wires with different thicknesses. The conductive sleeve is nested on the conductive sheet, the conductive sleeve and the conductive sheet are connected firmly, and the situation that the lead is not easy to be separated from the rotary switch is not easy to happen. In addition, the fixing piece is embedded into the positioning groove, so that the connection between the fixing piece and the base is more stable.

Optionally, the stationary blade includes fixed part, anticreep portion and the wiring portion of fixed connection in proper order, the fixed part is different with the length direction of anticreep portion, the anticreep portion is different with the length direction of wiring portion, fixed part and electrically conductive shell fragment fixed connection, the base is stretched out to the one end of wiring portion.

Through adopting above-mentioned technical scheme, the stationary blade is the form of buckling, and when the stationary blade was embedded into the constant head tank, the cell wall of constant head tank can block the emergence of stationary blade and remove for it is more firm to be connected between stationary blade and the base.

Optionally, a positioning notch is formed in one end, embedded into the positioning groove, of the fixing piece, and a positioning block capable of being embedded into the positioning notch is arranged on the groove wall of the positioning groove.

Through adopting above-mentioned technical scheme, when the stationary blade embedding constant head tank in, the locating piece can imbed in the location breach, and under the blockking of locating piece, the stationary blade is difficult for taking place to remove along the extending direction of constant head tank to improve the stability that stationary blade and base are connected.

Optionally, one end of the fixing sheet extending out of the base is fixedly connected with a limiting bump.

By adopting the technical scheme, when the conductive sleeve is sleeved on the fixing sheet, the limiting convex block stops the conductive sleeve from continuously moving to one side close to the base, so that the conductive sleeve is sleeved at a certain proper position on the fixing sheet, and the limiting convex block plays a role in positioning the conductive sleeve.

Optionally, two opposite groove walls of the positioning groove are provided with guiding inclined surfaces, the guiding inclined surfaces are located on one side of the groove wall of the positioning groove close to the opening end of the positioning groove, and the distance between the two guiding inclined surfaces is gradually reduced along the direction from the fixing piece to the base.

Through adopting above-mentioned technical scheme, when assembling the stationary blade to the base, the direction inclined plane plays certain guide effect to the stationary blade for the direction inclined plane can be fast aligns simple operation with the open end of constant head tank.

Optionally, the conductive elastic sheet includes a collision section, a bending section, a supporting section and a fixing section which are fixedly connected in sequence, a conductive contact which is in butt fit with the movable contact sheet is arranged on the collision section, and the middle part of the conductive contact is bent towards one side close to the rotating seat.

Through adopting above-mentioned technical scheme, when the movable contact piece and the electrically conductive contact butt, the middle part of electrically conductive contact is to being close to one side bending of moving contact for the movable contact piece contacts with electrically conductive contact more easily, makes the electricity connect firmly.

Optionally, a bent portion is formed on the supporting section of the conductive contact, and a tip of the bent portion faces a side away from the rotating seat.

Through adopting above-mentioned technical scheme, rotate the in-process of roating seat, the deformation of buckling can take place for electrically conductive shell fragment, and the bending section of electrically conductive shell fragment all can take place to buckle with the portion of bending of support section for the external force dispersion of the electrically conductive shell fragment of buckling is on the bending section with the portion of bending, reduces the bending section of electrically conductive shell fragment because of buckling too much the cracked condition.

Optionally, a butting block is arranged on the base, a butting groove is formed in the side wall of the butting block, the tip of the bending section of the conductive elastic sheet is butted with the groove wall of the butting groove, a limiting column is arranged on the base, and the limiting column is located on the inner side of the bending section of the conductive elastic sheet.

Through adopting above-mentioned technical scheme, the cell wall in butt groove and spacing post can block the bending section of electrically conductive shell fragment jointly and take place to remove when bending.

Optionally, the thickness of the conductive elastic sheet is 0.1-0.5mm, and the thickness of the fixing sheet is 0.5-1.2 mm.

By adopting the technical scheme, the thickness of the conductive elastic sheet is smaller, so that the conductive elastic sheet can keep good bending performance. And the thickness of stationary blade is great for the stationary blade can circulate great electric current.

Optionally, a positioning protrusion located between two adjacent moving contact pieces is disposed on a circumferential side wall of the rotating seat.

Through adopting above-mentioned technical scheme, when rotating the roating seat, conductive contact need slide the protruding butt of fixing a position with adjacent movable contact spring, and the deformation of buckling can further take place for conductive spring piece this moment, and above-mentioned process is difficult for taking place under the condition of no external force, then fixes a position protruding stop motion to the roating seat that plays.

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

1. the fixing piece can be connected with a conductive sleeve connected with a circuit lead to realize the connection of the switch in the equipment circuit; different lead wires can be connected on the conductive sleeve, so that the rotary switch can be connected in circuits with lead wires with different thicknesses; the conductive sleeve is nested on the conductive sheet, the conductive sleeve and the conductive sheet are connected firmly, and the situation that a lead is not easy to fall off the rotary switch is avoided;

2. the thickness of the conductive elastic sheet is small, so that the conductive elastic sheet can keep good bending performance; and the thickness of stationary blade is great for the stationary blade can circulate great electric current.

Drawings

Fig. 1 is a schematic structural view of a rotary switch in the related art.

Fig. 2 is a schematic structural diagram of an embodiment of the present application.

Fig. 3 is a schematic view of hiding the opening and closing cover in embodiment 1 of the present application.

Fig. 4 is an exploded view schematically showing the hiding of the opening and closing cover in embodiment 1 of the present application.

Fig. 5 is a partial structural view of embodiment 2 of the present application.

Description of reference numerals:

1. a base; 11. a rotating groove; 12. a butting block; 121. a butt joint groove; 13. a limiting post; 14. positioning a groove; 141. positioning a block; 142. a guide slope; 2. a switch cover; 3. a rotating base; 31. a rotating shaft; 32. conducting rings; 322. a first movable contact piece; 323. a second movable contact piece; 33. positioning the projection; 4. a conductive spring plate; 41. a conflict section; 411. a conductive contact; 42. bending the section; 43. a support section; 431. a bending part; 44. a fixed section; 5. a fixing sheet; 51. a fixed part; 52. a retaining part; 53. a wiring portion; 54. positioning the notch; 55. and a limiting bump.

Detailed Description

The present application is described in further detail below with reference to figures 2-5.

The embodiment of the application discloses a rotary switch.

Example 1:

referring to fig. 2 and 3, the rotary switch includes a base 1 and a switch cover 2 fixedly coupled. Seted up on the base 1 and rotated groove 11, rotated on the diapire of rotating groove 11 and be provided with roating seat 3, fixedly connected with rotation axis 31 on the roating seat 3, the one end that the roating seat 3 was kept away from to rotation axis 31 is worn out switch cover 2, and operating personnel can drive roating seat 3 and rotate through rotating rotation axis 31.

Referring to fig. 4, a conducting ring 32 is inserted into an end surface of the rotating base 3 close to the bottom wall of the rotating slot 11, four movable contact pieces are integrally formed on the periphery of the conducting ring 32, two of the movable contact pieces are first movable contact pieces 322, the other two of the movable contact pieces are second movable contact pieces 323, the first movable contact pieces 322 and the second movable contact pieces 323 are both perpendicular to the conducting ring 32 and abut against the circumferential side wall of the rotating base 3, wherein the two first movable contact pieces 322 are symmetrically arranged relative to the central axis of the rotating base 3, the two second movable contact pieces 323 are respectively located on two sides of one of the first movable contact pieces 322, and an included angle between a straight line from each second movable contact piece 323 to the central point of the rotating base 3 and a straight line from the first movable contact piece 322 to the central point of the rotating base 3 is 45 °.

Referring to fig. 3, four conductive elastic pieces 4 are symmetrically arranged on the base 1. Each conductive elastic sheet 4 comprises an abutting section 41, a bending section 42, a supporting section 43 and a fixing section 44 which are integrally formed in sequence, a conductive contact 411 which can be in rotary abutting connection with the movable contact sheet is arranged on the abutting section 41, and the middle of the conductive contact 411 is bent towards one side close to the circumferential side wall of the rotary seat 3. When the conductive elastic sheet 4 and the rotary base 3 are assembled in place, the conductive contact 411 can abut against the movable contact, and meanwhile, the conductive elastic sheet 4 can be bent and deformed to generate elastic force, and under the elastic force action of the conductive elastic sheet 4, the conductive contact 411 abuts against the movable contact.

Referring to fig. 3 and 4, in an initial state, two of the conductive contacts 411 are respectively abutted to the adjacent first movable contact pieces 322, the two conductive contacts 411 are symmetrically distributed along the central axis of the rotating base 3, so that the circuits of the two conductive contacts 411 are communicated, and at this time, neither of the two second movable contact pieces 323 is abutted to the conductive contact 411. Then, the rotating base 3 is rotated by 45 °, the two second movable contact pieces 323 are respectively abutted with the respective adjacent conductive contacts 411, the two conductive contacts 411 are adjacently arranged, so that the circuits where the two adjacent conductive contacts 411 are located are communicated, and at this time, neither of the two first movable contact pieces 322 is abutted with the conductive contact 411. In the above process, the rotating shaft 31 is rotated to drive the rotating base 3 to rotate, so that the switching of different circuits is realized.

Referring to fig. 4, in order to reduce the rotational degree of freedom of the rotary base 3, so that the rotary base 3 is not easy to rotate freely when the operator does not rotate the rotary base 3, eight positioning protrusions 33 are integrally formed on the circumferential side wall of the rotary base 3 and are distributed at equal intervals, and each movable contact is located between two adjacent positioning protrusions 33.

Referring to fig. 3, the conductive elastic sheet 4 is bent once when the rotary base 3 is rotated once. Be equipped with the portion 431 of bending on conductive elastic sheet 4's the support section 43, the most advanced one side far away from roating seat 3 of the orientation of portion 431 of bending, when conductive elastic sheet 4 takes place to buckle, conductive elastic sheet 4's bending section 42 can take place to buckle, and the portion 431 of bending also can take place to buckle simultaneously. The bending portion 431 can disperse the bending force applied to the bending section 42, and reduce the breakage of the conductive elastic sheet 4 due to excessive bending.

Referring to fig. 3, in order to improve the stability of the conductive elastic sheet 4, two abutting blocks 12 are disposed on the bottom wall of the rotating groove 11, and the two abutting blocks 12 are symmetrically disposed around the central axis of the rotating base 3. The one end of butt joint piece 12 and the lateral wall butt in rotation groove 11 have all seted up butt joint groove 121 on two relative lateral walls of butt joint piece 12, the most advanced and the cell wall butt in adjacent butt joint groove 121 separately of the bending section 42 of electrically conductive shell fragment 4, four spacing posts 13 of fixedly connected with on the cell wall of rotation groove 11, four spacing posts 13 are located the inboard of the bending section 42 of adjacent electrically conductive shell fragment 4 separately respectively. Under the common limiting action of the limiting column 13 and the wall of the abutting groove 121, the conductive elastic sheet 4 is not easy to shake in the bending process.

Referring to fig. 3, a conductive fixing piece 5 is riveted to the fixing section 44 of the conductive elastic piece 4, the fixing piece 5 includes a fixing portion 51, a retaining portion 52 and a wiring portion 53 which are integrally formed in sequence, the fixing portion 51 is riveted to the fixing section 44 of the conductive elastic piece 4, the retaining portion 52 is connected to one end of the fixing portion 51 far away from the fixing section 44, the extending directions of the retaining portion 52 and the fixing portion 51 are different, and the extending directions of the retaining portion 52 and the fixing portion 51 are perpendicular to each other; the wire connecting portion 53 is connected to one end of the retaining portion 52 away from the fixing portion 51, the extending directions of the wire connecting portion 53 and the retaining portion 52 are different, the extending directions of the wire connecting portion 53 and the retaining portion 52 are perpendicular to each other, and the extending directions of the fixing portion 51 and the wire connecting portion 53 are parallel to each other.

Referring to fig. 3, a positioning groove 14 for the fixing piece 5 to be inserted into is formed on the side wall of the base 1, and the extending direction of the positioning groove 14 is the same as the extending direction of the fixing piece 5. Under the block of the 14 cell walls of constant head tank, stationary blade 5 is difficult for taking place to rock under the pulling of external force, improves the stability that stationary blade 5 and base 1 are connected. One end of the wiring portion 53 of the fixing sheet 5 is embedded into the positioning groove 14, the other end of the wiring portion 53 extends out of the base 1, and the conductive sleeve connected with the conductor can be clamped and sleeved at one end of the wiring portion 53 extending out of the base 1, so that the rotary switch is connected in a circuit. In addition, the distance between the two wire connecting parts 53 can be changed by adjusting the length of the anti-falling part 52, so that the rotary switch can be plugged into different devices and used as required. The thickness range of the conductive elastic sheet 4 is 0.1-0.5mm, and the thickness range of the fixing sheet 5 is 0.5-1.2 mm. In the embodiment of the application, the thickness of the conductive elastic sheet 4 is 0.3mm, the thickness of the fixing sheet 5 is 0.8mm, and the fixing sheet 5 is thicker than the conductive elastic sheet 4, so that the strength of the fixing sheet 5 is higher and the conductive capability is stronger.

Referring to fig. 3, two opposite side walls of the fixing plate 5 are integrally formed with two limiting protrusions 55, and the two limiting protrusions 55 are located at one end of the fixing plate 5 extending out of the base 1. When the conductive sleeve is sleeved on the fixing plate 5, the limiting bump 55 can prevent the conductive sleeve from moving to the side close to the base 1, so that the conductive sleeve is sleeved on a suitable position of the fixing plate 5.

Referring to fig. 3, two opposite groove walls of the positioning groove 14 are each provided with a guiding slope 142, the guiding slope 142 is located on one side of the groove wall of the positioning groove 14 close to the open end of the positioning groove 14, and the distance between the two guiding slopes 142 gradually decreases along the direction in which the fixing piece 5 is assembled to the base 1. When the fixing piece 5 is assembled to the base 1, the fixing piece 5 is easily aligned with the opening of the positioning groove 14 by the guide of the guide slope 142, increasing the convenience of assembly.

The implementation principle of a rotary switch in the embodiment of the application is as follows: when the rotary switch is firstly matched with the required equipment, the conductive sleeve connected with the lead is required to be inserted on the fixing piece 5, and the operation is simple and convenient. When the rotary switch is used, the rotating shaft 31 is rotated first, and the rotating shaft 31 drives the rotating base 3 to rotate, so that the movable contact pieces are respectively abutted to different conductive contacts 411, the circuit obtained by the different conductive contacts 411 is switched on, and the circuit switching is realized.

Example 2:

referring to fig. 5, the present embodiment is different from embodiment 1 in that: the fixing portion 51, the retaining portion 52, and the wire connecting portion 53 of the fixing piece 5 are parallel to each other. A positioning notch 54 is formed on the side wall of one end of the fixing piece 5 embedded in the positioning groove 14, and a positioning block 141 embedded in the positioning notch 54 is arranged on the groove wall of the positioning groove 14. When the fixing piece 5 is inserted into the positioning slot 14, the positioning block 141 is inserted into the positioning notch 54, and the fixing piece 5 is not easily moved along the extending square of the positioning slot 14 under the blocking of the positioning block 141, so that the relative fixing of the fixing piece 5 and the base 1 is realized.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The utility model provides a rotary switch, includes fixed connection's base (1) and switch cover (2), the internal rotation of base (1) is provided with roating seat (3), be provided with two at least mutual movable contact spring that communicate on roating seat (3), be provided with on base (1) with movable contact spring rotate at least two electrically conductive shell fragment (4) of butt, its characterized in that: the conductive elastic sheet (4) is fixedly connected with a conductive fixing sheet (5) used for being connected with a circuit wire, one end, far away from the conductive elastic sheet (4), of the fixing sheet (5) extends out of the base (1), and a positioning groove (14) for embedding one end of the fixing sheet (5) is formed in the base (1).

2. A rotary switch according to claim 1, wherein: stationary blade (5) are including fixed part (51), anticreep portion (52) and wiring portion (53) of fixed connection in proper order, fixed part (51) are different with the length direction of anticreep portion (52), anticreep portion (52) are different with the length direction of wiring portion (53), fixed part (51) and electrically conductive shell fragment (4) fixed connection, base (1) is stretched out to the one end of wiring portion (53).

3. A rotary switch according to claim 1, wherein: one end of the fixing piece (5) embedded into the positioning groove (14) is provided with a positioning notch (54), and the wall of the positioning groove (14) is provided with a positioning block (141) capable of being embedded into the positioning notch (54).

4. A rotary switch according to claim 1, wherein: one end of the fixing piece (5) extending out of the base (1) is fixedly connected with a limiting convex block (55).

5. A rotary switch according to claim 1, wherein: two opposite groove walls of the positioning groove (14) are provided with guide inclined surfaces (142), the guide inclined surfaces (142) are positioned on one side, close to the opening end of the positioning groove (14), of the groove walls of the positioning groove (14), and the distance between the two guide inclined surfaces (142) is gradually reduced along the direction that the fixing piece (5) is assembled to the base (1).

6. A rotary switch according to claim 1, wherein: the conductive elastic sheet (4) comprises a collision section (41), a bending section (42), a supporting section (43) and a fixing section (44) which are fixedly connected in sequence, a conductive contact (411) matched with the movable contact piece in a butting mode is arranged on the collision section (41), and the middle of the conductive contact (411) bends towards one side close to the rotary seat (3).

7. A rotary switch according to claim 6, wherein: a bent part (431) is formed on the supporting section (43) of the conductive elastic sheet (4), and the tip of the bent part (431) faces to one side far away from the rotating seat (3).

8. A rotary switch according to claim 6, wherein: the conductive elastic piece bending device is characterized in that a butt-joint block (12) is arranged on the base (1), a butt-joint groove (121) is formed in the side wall of the butt-joint block (12), the tip of a bending section (42) of the conductive elastic piece (4) is in butt joint with the groove wall of the butt-joint groove (121), a limiting column (13) is arranged on the base (1), and the limiting column (13) is located on the inner side of the bending section (42) of the conductive elastic piece (4).

9. A rotary switch according to claim 6, wherein: the thickness of the conductive elastic sheet (4) is 0.1-0.5mm, and the thickness of the fixing sheet (5) is 0.5-1.2 mm.

10. A rotary switch according to claim 1, wherein: and a positioning lug between two adjacent movable contact pieces is arranged on the circumferential side wall of the rotating seat (3).

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