Novel rotary switch
By adopting the mating structure of the moving contact piece and the first reset member in the rotary switch and the fixing groove design, combined with the anti-crawling measures of the sliding part and the projection, the problem of easy fatigue of the moving contact bridge in the prior art is solved, and the problem of the moving contact bridge in the prior art is realized. Higher rotation accuracy and cost-reducing effect.
Patent Information
- Application Number
- CN202323477766.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-19
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2033-12-19
AI Technical Summary
The V-shaped dynamic touch bridge structure in the existing rotary switch is prone to elastic fatigue during long-term use, resulting in reduced rotation accuracy and difficult processing, which increases cost.
The V-shaped structure is replaced by the mating structure of the movable contact piece and the first reset member. By setting the first fixing groove and the second fixing groove, a stable pressure and fixing effect are formed, combined with the design of the sliding part and the projection to prevent crawling. Electrical and arc drawing phenomenon, and through the coordination of elastic parts and annular grooves, the gear fixation effect and rapid reset are achieved.
It effectively avoids elastic fatigue, simplifies the processing of moving contacts, improves rotation accuracy and processing efficiency, reduces costs, and prevents creepage and arc drawing, ensuring the effect of gear fixation and rapid reset.
Smart Images
Figure CN222168220U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of electrical technology, in particular to a novel rotary switch. Background Art
[0002] The rotary switch is used in household electrical appliances to achieve the switching effect of the electrical circuit by rotating the rotary handle. For example, the Chinese invention patent, with the publication number CN101599383B and the patent name "rotary switch", discloses the structure of the rotary switch.
[0003] However, during long-term use, since the moving contact bridge in this structure is a V-shaped structure, long-term rotation and the pressure exerted by the rotating wheel cause the moving contact bridge to easily suffer from elastic fatigue, resulting in reduced rotation accuracy. At the same time, the structural processing of the moving contact bridge is more difficult, which will also increase the processing cost accordingly. Utility Model Content
[0004] Therefore, the technical problem to be solved by the utility model is how to overcome elastic fatigue and reduce costs. To this end, a new type of rotary switch includes:
[0005] A body, wherein the body is provided with a first chamber;
[0006] a rotating wheel, the rotating wheel being accommodated in the first chamber and rotating relative to the first chamber;
[0007] a common terminal, the common terminal being accommodated in the first cavity;
[0008] A plurality of first terminals are provided in the first cavity at equal intervals;
[0009] A moving contact piece, wherein the moving contact piece cooperates with the rotating wheel on the side facing the first chamber, one end of the moving contact piece is electrically connected to the common terminal, and the first terminal is located on the motion track of the other end of the moving contact piece;
[0010] A first restoring member, wherein one end of the first restoring member abuts against a side of the movable contact piece close to the common terminal, and the other end of the first restoring member abuts against the rotating wheel.
[0011] The rotating wheel is provided with a first fixing groove, and the first resetting member extends to the first fixing groove.
[0012] The rotating wheel is provided with a second fixing groove, and the moving contact piece is provided with a supporting foot, and the supporting foot extends to the second fixing groove.
[0013] The bottom surface of the first cavity is provided with bumps distributed in a circumferential array, the first terminal extends to the top surface of the bumps, and an isolation groove is provided between two adjacent bumps.
[0014] The movable contact piece is provided with a sliding part, the bottom surface of the first cavity is provided with protrusions distributed in a circumferential array, a groove is provided between two adjacent protrusions, and the groove and the protrusion are located on the movement track of the sliding part.
[0015] The top surface of the protrusion is higher than the top surface of the bump.
[0016] It also includes an elastic member, the body is provided with a second chamber, the second chamber is provided with a plurality of gear slots distributed in a circumferential array, one end of the elastic member cooperates with the rotating wheel, and the other end of the elastic member slides on the gear slot.
[0017] The elastic member includes a sleeve and a second reset member, the sleeve is provided with a first concave cavity, one end of the sleeve is against the gear slot, one end of the second reset member extends into the first concave cavity, and the other end of the second reset member is against the rotating wheel.
[0018] It also includes a third reset member, the second chamber is provided with an annular groove, the third reset member is accommodated in the annular groove, the rotating wheel is provided with a driving block, and the third reset member is located on the movement track of the driving block.
[0019] The body comprises a base cover and a base, the rotating wheel is provided with a disc portion, the disc portion cooperates with the base cover to form the second chamber, and the disc portion cooperates with the base to form the first chamber.
[0020] The technical solution of the utility model has the following advantages:
[0021] 1. The utility model provides a new type of rotary switch, which adopts this structural setting. The structure in which the moving contact piece cooperates with the first reset piece replaces the V-shaped structure in the prior art, so that the rotating wheel can better achieve the driving effect during the rotation process, and is not prone to elastic fatigue. At the same time, the moving contact piece is more convenient to process, which can greatly improve the processing efficiency, thereby achieving the effect of reducing costs.
[0022] 2. The utility model provides a novel rotary switch, which forms a fixing effect of the first restoring member through the setting of the first fixing groove, so that the pressure applied by the first restoring member on the moving contact piece is more stable.
[0023] 3. The utility model provides a new type of rotary switch, in which the second fixing groove cooperates with the support foot to better achieve the fixing effect of the moving contact piece, and the support foot also plays a certain guiding effect.
[0024] 4. The utility model provides a novel rotary switch, in which the isolation groove forms an isolation effect to prevent creepage between two adjacent first terminals.
[0025] 5. The utility model provides a new type of rotary switch, in which the sliding part cooperates with the protrusion to form a lifting effect of the moving contact piece toward one end of the first terminal, so that the moving contact piece is completely separated from the first terminal to prevent arcing.
[0026] 6. The utility model provides a novel rotary switch with a limited height to achieve a better separation effect.
[0027] 7. The utility model provides a new type of rotary switch, in which the setting of the elastic member forms a gear matching effect, so that the rotating wheel forms a gear fixing effect during the rotation process.
[0028] 8. The utility model provides a novel rotary switch, in which the sleeve and the second reset member cooperate to better achieve the gear effect.
[0029] 9. The utility model provides a novel rotary switch, in which the annular groove cooperates with the third reset member to form a rapid reset effect, thereby preventing the rotary wheel from rotating out of position.
[0030] 10. The utility model provides a new type of rotary switch, in which the setting of the disc part forms an isolation effect between the first chamber and the second chamber, so that the gear limit and reset are independent of the electrical connection between the first chambers, forming a protective isolation effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0032] Figure 1 A schematic diagram of the structure of a novel rotary switch provided by the utility model;
[0033] Figure 2 A cross-sectional view of a novel rotary switch provided by the utility model;
[0034] Figure 3 An exploded view of a novel rotary switch provided by the utility model;
[0035] Figure 4 A schematic diagram of the structure of the base cover provided by the utility model;
[0036] Figure 5 The present invention is a partial structural schematic diagram of a novel rotary switch provided by the utility model.
[0037] Description of reference numerals:
[0038] 11. body; 12. rotating wheel; 13. common terminal; 14. first terminal; 15. moving contact piece; 16. first reset member; 17. elastic member; 18. third reset member; 19. base cover; 20. base; 111. first chamber; 112. second chamber; 121. first fixed groove; 122. second fixed groove; 123. second concave cavity; 124. driving block; 125. disc portion; 151. support foot; 152. contact; 153. sliding portion; 171. sleeve; 172. second reset member; 1111. convex block; 1112. isolation groove; 1113. protrusion; 1114. groove; 1121. gear groove; 1122. annular groove; 1711. first concave cavity; DETAILED DESCRIPTION
[0039] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0040] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0042] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0043] Example 1
[0044] This embodiment provides a new type of rotary switch. Figure 1-5 As shown, including:
[0045] The body 11 is provided with a first chamber 111 , and the body 11 is a hollow cylindrical structure as a whole.
[0046] The rotating wheel 12 is accommodated in the first chamber 111, and part of the rotating wheel 12 is located in the first chamber 111, and the rest of the rotating wheel 12 passes through the body 11 and extends to the outside of the body 11. The operator realizes the rotation effect of the rotating wheel 12 by operating the part of the rotating wheel 12 extending to the outside. The rotating wheel 12 rotates relative to the first chamber 111. Here, the rotating wheel 12 rotates radially and is locked in the axial direction and cannot move in the axial direction. The locking between the rotating wheel 12 and the body 11 is a prior art, so it is not described in detail in this embodiment.
[0047] Common terminal 13, common terminal 13 is accommodated in first cavity 111, in this embodiment, part of common terminal 13 is located in first cavity 111, and the rest of common terminal 13 extends vertically downward through the bottom surface of first cavity 111 to the outside, and the part of common terminal 13 extending to the outside is used to form an electrical connection with an external circuit. Here, the part of common terminal 13 located in first cavity 111 is specifically located in the middle of first cavity 111. In addition to this embodiment, those skilled in the art can also adjust the position of common terminal 13 according to actual needs.
[0048] The first terminal 14, the number of the first terminals 14 is several, and the number of the first terminals 14 here can be adjusted according to actual needs. In this embodiment, the spacing between two adjacent first terminals 14 is equal, so an equidistant distribution is formed. The first terminal 14 is also accommodated in the first chamber 111. Specifically, part of the first terminal 14 is located in the first chamber 111, and the rest of the first terminal 14 extends vertically downward to the outside through the bottom surface of the first chamber 111. The part of the first terminal 14 extending to the outside is used to form an electrical connection with an external circuit. The number of the first terminals 14 can be two, three or four. The first terminals 14 can be distributed in a circular array, or can be distributed in a fan-shaped equidistant distribution.
[0049] The movable contact piece 15 cooperates with the rotating wheel 12 toward the first chamber 111. Here, the movable contact piece 15 cooperates with the rotating wheel 12 to form a linkage effect, that is, the rotating wheel 12 drives the movable contact piece 15 to rotate. One end of the movable contact piece 15 is electrically connected to the common terminal 13, and the first terminal 14 is located on the motion track of the other end of the movable contact piece 15. When the number of the first terminals 14 is four, the movable contact piece 15 rotates to achieve an electrical connection effect between the common terminal 13 and one of the first terminals 14, forming a connection or disconnection of the circuit.
[0050] The first reset member 16 is also accommodated in the first chamber 111. One end of the first reset member 16 abuts against the side of the movable contact piece 15 close to the common terminal 13, and the other end of the first reset member 16 abuts against the rotating wheel 12. Here, the position where the first reset member 16 abuts against the movable contact piece 15 is close to the end where the movable contact piece 15 is connected to the common terminal 13. In simple terms, the first reset member 16 is located at the end away from the first terminal 14. With this structural setting, the structure in which the movable contact piece 15 cooperates with the first reset member 16 replaces the V-shaped structure in the prior art, so that the rotating wheel 12 can better achieve the driving effect during the rotation process, and is not prone to elastic fatigue. At the same time, the movable contact piece 15 is more convenient to process, which can greatly improve the processing efficiency, thereby achieving the effect of reducing costs.
[0051] Specifically, as attached Figure 2 As shown, the rotating wheel 12 is provided with a first fixing groove 121, and the first fixing groove 121 is located on the side of the rotating wheel 12 facing the first chamber 111, that is, the first fixing groove 121 is located on the bottom surface of the rotating wheel 12. The first reset member 16 extends to the first fixing groove 121. Through the setting of the first fixing groove 121, the fixing effect of the first reset member 16 is formed, so that the pressure applied by the first reset member 16 on the moving contact piece 15 is more stable. In this embodiment, the first reset member 16 is a spring. In addition to this embodiment, the first reset member 16 may not be fixed by the groove structure, and the first reset member 16 may be a tension spring structure.
[0052] Specifically, as attached Figure 2 As shown, the rotating wheel 12 is provided with a second fixed groove 122, and the second fixed groove 122 is located on the side of the rotating wheel 12 facing the first chamber 111, and the second fixed groove 122 is also located on the bottom surface of the rotating wheel 12. Here, the number of the second fixed grooves 122 is two, and the first fixed groove 121 is located between the two second fixed grooves 122. The moving contact piece 15 is provided with a support foot 151, and the support foot 151 can be set at the end, and can also be set according to actual needs. In this embodiment, only the end is described as an example. Support feet 151 are provided at both ends of the moving contact piece 15, so that the entire moving contact piece 15 forms a U-shaped structure, and the support foot 151 extends to the second fixed groove 122. The second fixed groove 122 cooperates with the support foot 151 to better achieve the fixing effect of the moving contact piece 15, and the support foot 151 also plays a certain guiding effect. The support leg 151 and the second fixing groove 122 are not completely fitted together, and there is a certain clearance between the two, so that the entire movable contact piece 15 has a certain displacement effect, so that the end of the movable contact piece 15 facing the first terminal 14 can be tilted. In addition, a gap can also be provided between the movable contact piece 15 and the bottom surface of the rotating wheel 12, that is, a gap is provided between the plane portion of the movable contact piece 15 and the bottom surface of the rotating wheel 12, so that the movable contact piece 15 has a certain elastic effect and achieves displacement.
[0053] Specifically, as attached Figure 3 As shown, the bottom surface of the first chamber 111 is provided with protrusions 1111 distributed in a circular array, the first terminal 14 extends to the top surface of the protrusion 1111, and the part of the first terminal 14 located at the protrusion 1111 cooperates with the moving contact piece 15 to achieve an electrical connection effect. An isolation groove 1112 is provided between two adjacent protrusions 1111. The isolation groove 1112 forms an isolation effect to prevent creepage between two adjacent first terminals 14. The width of the isolation groove 1112 here can be adjusted according to actual needs. In addition, isolation ribs can also be provided between the two protrusions 1111, but the isolation ribs need to be provided with guide surfaces to facilitate sliding.
[0054] Specifically, as attached Figure 2 , 5 As shown, one end of the movable contact piece 15 that cooperates with the first terminal 14 is riveted with a contact 152 , and the electrical connection effect between the movable contact piece 15 and the first terminal 14 is better achieved through the contact 152 .
[0055] Specifically, as attached Figure 2 , 5 As shown, the movable contact piece 15 is provided with a sliding portion 153, and the sliding portion 153 is located near the connection between the movable contact piece 15 and the first terminal 14. The sliding portion 153 is specifically a downward protrusion, which is specifically formed by stamping. The bottom surface of the first chamber 111 is provided with protrusions 1113 distributed in a circumferential array. The imaginary circle formed by the protrusions 1113 is located inside the imaginary circle formed by the protrusions 1111. The protrusions 1113 are closer to the center of the first chamber 111 relative to the protrusions 1111. A groove 1114 is provided between two adjacent protrusions 1113. The groove 1114 and the protrusion 1113 are located on the movement track of the sliding portion 153. When the movable contact piece 15 rotates, the sliding portion 153 slides on the groove 1114 and the protrusion 1113. The sliding portion 153 cooperates with the protrusion 1113 to form a lifting effect of the movable contact piece 15 toward one end of the first terminal 14, so that the movable contact piece 15 is completely separated from the first terminal 14 to prevent arcing. Furthermore, guide surfaces are provided on both sides of the top surface of the protrusion 1113, and the guide surfaces here can be inclined surfaces or curved surfaces.
[0056] Specifically, the position where the moving contact piece 15 cooperates with the common terminal 13 is also set as a ridge, forming a better electrical connection effect.
[0057] Specifically, the top surface of the protrusion 1113 is higher than the top surface of the bump 1111. The height limitation can better achieve the separation effect, so that the end of the movable contact piece 15 that matches with the first terminal 14 forms a lifting and separation effect.
[0058] Specifically, as attached Figure 2-3As shown, the main body 11 is provided with a second chamber 112, and the second chamber 112 is located above the first chamber 111. The rotating wheel 12 passes through the second chamber 112 and extends to the first chamber 111. The second chamber 112 is provided with a plurality of gear slots 1121 distributed in a circumferential array, one end of the elastic member 17 cooperates with the rotating wheel 12, and the other end of the elastic member 17 slides on the gear slot 1121. The setting of the elastic member 17 forms a gear matching effect, so that the rotating wheel 12 forms a gear fixing effect during the rotation process.
[0059] Specifically, as attached Figure 2-3 As shown, the elastic member 17 includes a sleeve 171 and a second reset member 172. The sleeve 171 is provided with a first concave cavity 1711. One end of the sleeve 171 abuts against the gear slot 1121. Here, the end of the sleeve 171 abutting against the gear slot 1121 is hemispherical. One end of the second reset member 172 extends into the first concave cavity 1711, and the other end of the second reset member 172 abuts against the rotating wheel 12. The cooperation between the sleeve 171 and the second reset member 172 can better achieve the gear effect. Further, in order to better fix the second reset member 172, the rotating wheel 12 is provided with a second concave cavity 123, and one end of the second reset member 172 that cooperates with the rotating wheel 12 extends into the second concave cavity 123. In this embodiment, the number of the elastic member 17 can be one, two, or three.
[0060] Specifically, as attached Figure 3 As shown, it also includes a third reset member 18, the second chamber 112 is provided with an annular groove 1122, the third reset member 18 is accommodated in the annular groove 1122, the rotating wheel 12 is provided with a driving block 124, and the third reset member 18 is located on the motion track of the driving block 124. When the rotating wheel 12 rotates, the driving block 124 drives the third reset member 18 to squeeze and contract to store energy, and the annular groove 1122 cooperates with the third reset member 18 to form a rapid reset effect to prevent the rotating wheel 12 from not rotating in place. It should also be noted that the locking force after the elastic member 17 cooperates with the gear slot 1121 is greater than the reset force of the third reset member 18, that is, when it rotates in place, no return phenomenon will occur.
[0061] Specifically, as attached Figure 1-5As shown, the body 11 includes a base cover 19 and a base 20, and the rotating wheel 12 is provided with a disc portion 125, and the disc portion 125 cooperates with the base cover 19 to form a second chamber 112, and the disc portion 125 cooperates with the base 20 to form a first chamber 111. The setting of the disc portion 125 forms an isolation effect between the first chamber 111 and the second chamber 112, so that the gear limit and reset are independent of the electrical connection between the first chamber 111, forming a protective isolation effect. The drive block 124 is located on the top surface of the disc portion 125, and the annular groove 1122 is located on the side of the base cover 19 facing the base 20. The gear groove 1121 is also located on the side of the base cover 19 facing the base 20. The common terminal 13 and the first terminal 14 are both connected and fixed to the base 20, and the fixing method here can be injection molding.
[0062] Specifically, the base cover 19 and the base 20 may be fixed by snap-fitting, bolting, ultrasonic welding, or the like.
[0063] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.
Claims
1. A novel rotary switch, characterized in that: include: A body (11), wherein the body (11) is provided with a first chamber (111); a rotating wheel (12), the rotating wheel (12) being accommodated in the first chamber (111), and the rotating wheel (12) rotating relative to the first chamber (111); A common terminal (13), the common terminal (13) being accommodated in the first chamber (111); A first terminal (14), wherein the number of the first terminals (14) is a plurality, and the first terminals (14) are accommodated in the first chamber (111) at equal intervals; a movable contact piece (15), the movable contact piece (15) being matched with the rotating wheel (12) on the side facing the first chamber (111), one end of the movable contact piece (15) being electrically connected to the common terminal (13), and the first terminal (14) being located on a movement track of the other end of the movable contact piece (15); A first restoring member (16), one end of the first restoring member (16) abuts against a side of the movable contact piece (15) close to the common terminal (13), and the other end of the first restoring member (16) abuts against the rotating wheel (12).
2. The novel rotary switch according to claim 1 is characterized in that: The rotating wheel (12) is provided with a first fixing groove (121), and the first resetting member (16) extends to the first fixing groove (121).
3. The novel rotary switch according to claim 1 is characterized in that: The rotating wheel (12) is provided with a second fixing groove (122), and the movable contact piece (15) is provided with a support foot (151), and the support foot (151) extends to the second fixing groove (122).
4. The novel rotary switch according to claim 1 is characterized in that: The bottom surface of the first chamber (111) is provided with protrusions (1111) distributed in a circumferential array, the first terminal (14) extends to the top surface of the protrusion (1111), and an isolation groove (1112) is provided between two adjacent protrusions (1111).
5. The novel rotary switch according to claim 4 is characterized in that: The movable contact piece (15) is provided with a sliding portion (153); the bottom surface of the first chamber (111) is provided with protrusions (1113) distributed in a circular array; a groove (1114) is provided between two adjacent protrusions (1113); and the groove (1114) and the protrusion (1113) are located on a movement trajectory of the sliding portion (153).
6. The novel rotary switch according to claim 5 is characterized in that: The top surface of the protrusion (1113) is higher than the top surface of the bump (1111).
7. The novel rotary switch according to claim 1 is characterized in that: It also comprises an elastic member (17), the body (11) being provided with a second chamber (112), the second chamber (112) being provided with a plurality of gear slots (1121) distributed in a circumferential array, one end of the elastic member (17) being matched with the rotating wheel (12), and the other end of the elastic member (17) sliding on the gear slots (1121).
8. The novel rotary switch according to claim 7 is characterized in that: The elastic member (17) comprises a sleeve (171) and a second reset member (172); the sleeve (171) is provided with a first concave cavity (1711); one end of the sleeve (171) abuts against the gear slot (1121); one end of the second reset member (172) extends into the first concave cavity (1711); and the other end of the second reset member (172) abuts against the rotating wheel (12).
9. The novel rotary switch according to claim 7 is characterized in that: The invention also comprises a third restoring member (18), the second chamber (112) is provided with an annular groove (1122), the third restoring member (18) is accommodated in the annular groove (1122), the rotating wheel (12) is provided with a driving block (124), and the third restoring member (18) is located on the movement track of the driving block (124).
10. The novel rotary switch according to claim 7, characterized in that: The body (11) comprises a base cover (19) and a base (20); the rotating wheel (12) is provided with a disc portion (125); the disc portion (125) cooperates with the base cover (19) to form the second chamber (112); and the disc portion (125) cooperates with the base (20) to form the first chamber (111).