Round rotary switch

Abstract

The utility model discloses a circular rotary switch which comprises a body which is of a cylindrical structure and is provided with a first cavity; the common terminal is accommodated in the first cavity; the first terminals are contained in the first cavity, the number of the first terminals is at least two, each first terminal comprises a vertical part and a connecting part, the vertical parts are connected with one ends of the connecting parts, the vertical parts penetrate through the bottom face of the first cavity and extend out of the body, the common terminals are located on the movement track of the other ends of the connecting parts, and the connecting parts are distributed in a staggered mode in the vertical direction. The connecting part is provided with a driving part; the rotating wheel is contained in the first cavity, and the rotating wheel is provided with a protrusion matched with the driving part. In the first cavity, the projection of the rotating wheel is employed for cooperation, thereby achieving the electrical connection or disconnection between the first terminal and the common terminal, and achieving the working effect of the whole rotary switch. The driving structure can quickly realize separation, can increase the current of the terminals, and improves the power of the whole rotary switch.

Description

Technical Field

[0001] The utility model relates to the field of electrical technology, in particular to a circular rotary switch. Background Art

[0002] Rotary switches are used in household appliances to achieve the switching effect of electrical circuits by rotating the rotary handle. Rotary switches include circular rotary switches and square rotary switches. The difference between the two is that the cross section of a circular rotary switch is circular, while the cross section of a square rotary switch is square. For example, the Chinese invention patent, with the announcement number CN101599383B and the patent name "rotary switch", discloses the structure of a rotary switch. The rotary switch described in this patent is a circular rotary switch.

[0003] The patent uses a contact bridge to achieve the electrical connection between the center terminal and the axial terminal. However, the problem with this structure is that due to the rotation structure limitation of the contact bridge, the conductivity of the circuit composed of the center terminal, the axial terminal, and the contact bridge is not good enough (the separation speed between the contact bridge and the axial terminal is slow and arcing is easy), resulting in low power of the entire circuit and inability to pass large current. Utility Model Content

[0004] Therefore, the technical problem to be solved by the present invention is how to increase the power of the circuit.

[0005] To this end, a circular rotary switch comprises:

[0006] A body, the body is a cylindrical structure, and the body is provided with a first chamber;

[0007] a common terminal, the common terminal being accommodated in the first cavity;

[0008] A first terminal, the first terminal is accommodated in the first cavity, the number of the first terminals is at least two, the first terminal comprises a vertical portion and a connecting portion, the vertical portion is connected to one end of the connecting portion, the vertical portion passes through the bottom surface of the first cavity and extends to the outside of the body, the common terminal is located on the motion track of the other end of the connecting portion, the connecting portion is staggered in the vertical direction, and the connecting portion is provided with a driving portion;

[0009] A rotating wheel is accommodated in the first chamber and is provided with a protrusion that cooperates with the driving part.

[0010] The driving portion is raised toward one side of the rotating wheel.

[0011] The driving portion is located on the top surface or the bottom surface of the connecting portion, and the driving portion extends toward one side of the rotating wheel.

[0012] The common terminal includes a first contact surface and a second contact surface, and the first contact surface and the second contact surface are respectively matched with corresponding connecting parts.

[0013] The first contact surface and the second contact surface are respectively arranged at two ends of the common terminal.

[0014] 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.

[0015] The rotating wheel is provided with a through slot, the elastic member includes two sleeves and a first 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 first reset member extends into the first concave cavity, and the other end of the first reset member passes through the through slot and is against another first concave cavity.

[0016] It also includes a second reset member, the second chamber is provided with an annular groove, the second reset member is accommodated in the annular groove, the rotating wheel is provided with a driving block, and the second reset member is located on the movement track of the driving block.

[0017] 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.

[0018] The base cover is connected to the base by snap-fit ​​connection; or the base cover is connected to the base by bolts.

[0019] The technical solution of the utility model has the following advantages:

[0020] 1. The utility model provides a circular rotary switch. First, since the main body is cylindrical, the installation and fixing structure of the terminal by slotting the side of the main body is complex and difficult to process. In this application, the terminal is passed through the bottom surface of the first chamber to achieve the fixing effect of the terminal. Then, the protrusion of the rotating wheel is used in the first chamber to achieve the electrical connection or disconnection between the first terminal and the common terminal, thereby achieving the working effect of the entire rotary switch. This driving structure can quickly achieve separation, increase the current of the terminal, and improve the power of the entire rotary switch.

[0021] 2. The utility model provides a circular rotary switch, and the ridge is set so that the ridge and the driving part can be better matched.

[0022] 3. The utility model provides a circular rotary switch, in which the driving part is bent and extended, which can also achieve a raised driving effect.

[0023] 4. The circular rotary switch provided by the utility model can achieve a better electrical connection effect through the cooperation between the first contact surface and the second contact surface.

[0024] 5. The circular rotary switch provided by the utility model has two ends, which makes the processing of the common terminal more convenient.

[0025] 6. The utility model provides a circular rotary switch, in which the setting of the elastic member forms a gear matching effect, so that the rotary wheel forms a gear fixing effect during the rotation process.

[0026] 7. The utility model provides a circular rotary switch, in which the sleeve cooperates with the first reset member to better achieve the gear effect.

[0027] 8. The utility model provides a circular rotary switch, in which the annular groove cooperates with the second reset member to form a quick reset effect, thereby preventing the rotary wheel from rotating out of position.

[0028] 9. The utility model provides a circular rotary switch, in which the setting of the disc portion 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.

[0029] 10. The utility model provides a circular rotary switch, in which the base and the base cover cooperate to better achieve a matching and fixing effect between the two. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] 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.

[0031] Figure 1 A schematic diagram of the structure of a circular rotary switch provided by the utility model;

[0032] Figure 2 A cross-sectional view of a circular rotary switch provided by the utility model;

[0033] Figure 3 An exploded view of a circular rotary switch provided by the utility model;

[0034] Figure 4 A schematic diagram of the structure of the base cover provided by the utility model;

[0035] Figure 5This is a schematic structural diagram of another form of the first terminal provided by the utility model.

[0036] Description of reference numerals:

[0037] 11. body; 12. common terminal; 13. first terminal; 14. rotating wheel; 15. elastic member; 16. second reset member; 17. base cover; 18. base; 111. first chamber; 112. second chamber; 113. gear slot; 114. annular slot; 121. first contact surface; 122. second contact surface; 131. vertical portion; 132. connecting portion; 133. driving portion; 141. protrusion; 142. through slot; 143. driving block; 144. disc portion; 151. sleeve; 152. first reset member; 153. first concave cavity; DETAILED DESCRIPTION

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] Example 1

[0043] This embodiment provides a circular rotary switch, as shown in the attached Figure 1-4 As shown, including:

[0044] The body 11 is a cylindrical structure, and the side surfaces of the body 11 are all arc surfaces. The body 11 is provided with a first chamber 111, and the first chamber 111 is also a cylindrical structure.

[0045] The common terminal 12 is accommodated in the first cavity 111 , a portion of the common terminal 12 is located in the first cavity 111 , and the rest of the common terminal 12 passes through the bottom surface of the first cavity 111 and extends vertically downward to the outside of the body 11 .

[0046] The first terminal 13 is accommodated in the first chamber 111. The first terminal 13 is arranged corresponding to the common terminal 12. The first terminal 13 is connected and matched with the common terminal 12 to form a connection or disconnection of one of the paths. Here, the first terminal 13 is consistent with the common terminal 12. The first terminal 13 is also partially located in the first chamber 111. The rest of the first terminal 13 extends vertically downward through the bottom surface of the first chamber 111 to the outside of the body 11. In this embodiment, the first terminal 13 includes a vertical portion 131 and a connecting portion 132. The vertical portion 131 is connected to one end of the connecting portion 132. Here, the position where the vertical portion 131 is connected to the connecting portion 132 can be the top of the vertical portion 131, or it can be the area near the top of the vertical portion 131. The vertical portion 131 extends vertically downward through the bottom surface of the first chamber 111 to the outside of the body 11. The connecting portion 132 is located inside the first chamber 111. The connecting portion 132 is specifically horizontally extended, and the common terminal 12 is located on the motion trajectory of the other end of the connecting portion 132. The number of the first terminals 13 is at least two, and those skilled in the art can adjust the number of the first terminals 13 and the positions of the first terminals 13 according to actual needs. The connecting portion 132 of each first terminal 13 is staggered in the vertical direction of the first chamber 111. Simply put, the connecting portions 132 of different first terminals 13 can be staggered up and down, but the heights of two or more of the first terminals 13 can also be consistent, and it is only necessary to ensure the creepage distance. For example, a first terminal 13 located at the left end of the rotating wheel 14 can be at the same height as a first terminal 13 located at the right end of the rotating wheel 14. Each connecting portion 132 is provided with a driving portion 133, and the driving portion 133 extends toward one side of the rotating wheel 14. It should also be noted that since the side of the main body 11 is an arc surface, the processing difficulty of the common terminal 12 and the first terminal 13 extending to the outside through the side is large, and the processing cost is high.

[0047] The rotating wheel 14 is accommodated in the first chamber 111, and part of the rotating wheel 14 is located in the first chamber 111, and the rest of the rotating wheel 14 extends through the top surface of the body 11 to the outside of the body 11. The rotating wheel 14 and the first chamber 111 are arranged to rotate, and the rotating wheel 14 can rotate radially in the first chamber 111, but the rotating wheel 14 cannot move in the axial direction. The rotating wheel 14 can be an integral structure, and the part extending to the outside of the body 11 is a handle structure. The rotating wheel 14 can also be divided into two parts, one of which is located in the first chamber 111, and the other part passes through the top surface of the body 11 from the outside to form a linkage with the part located in the first chamber 111. The rotating wheel 14 is provided with a protrusion 141 that cooperates with the driving part 133, and the number of the protrusions 141 here can be adjusted according to actual needs, and the protrusions 141 are also arranged to be staggered up and down.

[0048] First, since the main body 11 is cylindrical as a whole, the structure of the installation and fixing of the terminal by slotting the side of the main body 11 is complex and difficult to process. In this application, the terminal is passed through the bottom surface of the first chamber 111 to achieve the fixing effect of the terminal. Then, the protrusion 141 of the rotating wheel 14 is used in the first chamber 111 to achieve the electrical connection or disconnection between the first terminal 13 and the common terminal 12, thereby achieving the working effect of the entire rotary switch. This driving structure can quickly achieve separation, increase the current of the terminal, and improve the power of the entire rotary switch.

[0049] Specifically, as attached Figure 3 As shown, the driving part 133 is raised toward one side of the rotating wheel 14. The driving part 133 is a raised structure, and the driving part 133 is located on the rotation track of the protrusion 141. The protrusion 141 cooperates with the driving part 133 to form a connection or separation effect between the connecting part 132 and the common terminal 12. The setting of the raised part allows the protrusion 141 to better cooperate with the driving part 133.

[0050] Specifically, as attached Figure 5 As shown, the driving part 133 is located on the top surface or the bottom surface of the connecting part 132, and the driving part 133 extends toward one side of the rotating wheel 14. Here, the driving part 133 is a horizontal plane after bending, and the horizontal plane is arranged parallel to the bottom surface of the first chamber 111. The driving part 133 is located on the rotation track of the protrusion 141, and the protrusion 141 cooperates with the driving part 133 to form a connection or separation effect between the connecting part 132 and the common terminal 12. The driving part 133 adopts a bending and extending method, which can also achieve the driving effect of the protrusion 141.

[0051] Specifically, the driving parts 133 of different first terminals 13 have the same distance from the center of the rotating wheel 14, and the difference between them is the height. In this case, the connecting parts 132 of the first terminals 13 at different positions need to be bent to achieve the effect of upper and lower correspondence. In addition, the driving parts 133 may have different distances from the center of the rotating wheel 14. In this case, the radial extension length of the protrusion 141 needs to be adjusted to meet the driving effect at different positions.

[0052] Specifically, as attached Figure 3 As shown, the common terminal 12 includes a first contact surface 121 and a second contact surface 122, and the first contact surface 121 and the second contact surface 122 are respectively matched with the corresponding connecting portion 132. The first contact surface 121 and the second contact surface 122 are respectively arranged on the left and right sides of the rotating wheel 14, and the electrical connection effect can be achieved for different first terminals 13. At this time, the first terminal 13 is also distributed on the left and right. Through the cooperation of the first contact surface 121 and the second contact surface 122, the electrical connection effect is better achieved. In addition, the common terminal 12 can also have only one contact surface to achieve the effect of on-off control. Further, the first contact surface 121, the second contact surface 122, and the end of the connecting portion 132 facing the common terminal 12 are all provided with contacts to improve the electrical connection effect. Here, it should also be noted that the end of the connecting portion 132 facing the common terminal 12 is located on the outer side of the first contact surface 121 and the second contact surface 122.

[0053] Specifically, the first contact surface 121 and the second contact surface 122 are respectively arranged at two ends of the common terminal 12. This structural arrangement enables the portion of the common terminal 12 located in the first cavity 111 to form a U-shaped structure. The arrangement at both ends makes the processing of the common terminal 12 more convenient.

[0054] Specifically, as attached Figure 2-4 As shown, the main body 11 further includes an elastic member 15, the main body 11 is provided with a second chamber 112, the second chamber 112 is located above the first chamber 111, and the rotating wheel 14 extends through the second chamber 112 to the first chamber 111. The second chamber 112 is provided with a plurality of gear slots 113 distributed in a circumferential array, one end of the elastic member 15 cooperates with the rotating wheel 14, and the other end of the elastic member 15 slides on the gear slot 113. The setting of the elastic member 15 forms a gear matching effect, so that the rotating wheel 14 forms a gear fixing effect during the rotation process.

[0055] Specifically, as attached Figure 2-3As shown, the rotating wheel 14 is provided with a through slot 142, where the through slot 142 is a portion of the rotating wheel 14 radially extending through the second chamber 112. The elastic member 15 includes two sleeves 151 and a first reset member 152, where the sleeve 151 is provided with a first concave cavity 153, one end of the sleeve 151 abuts against the gear slot 113, one end of the first reset member 152 extends into the first concave cavity 153, and the other end of the first reset member 152 passes through the through slot 142 and abuts against another first concave cavity 153. The cooperation between the sleeve 151 and the first reset member 152 can better achieve the gear effect. Here, the two sleeves 151 are distributed on the left and right, and both sleeves 151 partially extend into the through slot 142, and the first reset member 152 supports and resets the sleeve 151.

[0056] Specifically, as attached Figure 3-4 As shown, it also includes a second reset member 16, the second chamber 112 is provided with an annular groove 114, the second reset member 16 is accommodated in the annular groove 114, the rotating wheel 14 is provided with a driving block 143, and the second reset member 16 is located on the motion track of the driving block 143. When the rotating wheel 14 rotates, the driving block 143 drives the second reset member 16 to squeeze and contract to store energy, and the annular groove 114 cooperates with the second reset member 16 to form a rapid reset effect to prevent the rotating wheel 14 from not rotating in place. It should also be noted that the locking force after the elastic member 15 cooperates with the gear slot 113 is greater than the reset force of the second reset member 16, that is, when it rotates in place, no return phenomenon will occur.

[0057] Specifically, as attached Figure 1-3 As shown, the body 11 includes a base cover 17 and a base 18. In this embodiment, the base cover 17 is located at the top surface opening of the base 18, and the base cover 17 closes the top surface opening of the base 18. Here, the base cover 17 and the base 18 are embedded structures, so that the top surface of the base cover 17 is coplanar with the top surface of the base 18. In addition, the top surface of the base cover 17 can also exceed the top surface of the base 18. The rotating wheel 14 is provided with a disc portion 144, and the disc portion 144 cooperates with the base cover 17 to form the second chamber 112, and the disc portion 144 cooperates with the base 18 to form the first chamber 111. The disc portion 144 can completely isolate the first chamber 111 and the second chamber 112, or it can not completely isolate them, that is, the outer wall of the disc portion 144 does not abut against the inner wall of the base 18. The setting of the disc portion 144 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 143 is located on the top surface of the disc portion 144, and the annular groove 114 is located on the side of the base cover 17 facing the base 18. The gear groove 113 is also located on the side of the base cover 17 facing the base 18. The common terminal 12 and the first terminal 13 are both connected and fixed to the base 18, and the fixing method here can be injection molding.

[0058] Specifically, the base cover 17 and the base 18 can be fixed by snap-fit, bolted, ultrasonic welding, etc. The base 18 and the base cover 17 cooperate to better achieve a cooperative fixing effect between the two. In addition, in order to better achieve the cooperation between the base 18 and the base cover 17, a positioning structure or a foolproof structure can be used to improve the accuracy of the cooperation.

[0059] 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 circular rotary switch, characterized in that: include: A body (11), the body (11) is a cylindrical structure, and the body (11) is provided with a first chamber (111); A common terminal (12), the common terminal (12) being accommodated in the first chamber (111); A first terminal (13), the first terminal (13) is accommodated in the first cavity (111), the number of the first terminals (13) is at least two, the first terminal (13) comprises a vertical portion (131) and a connecting portion (132), the vertical portion (131) is connected to one end of the connecting portion (132), the vertical portion (131) passes through the bottom surface of the first cavity (111) and extends to the outside of the body (11), the common terminal (12) is located on the movement track of the other end of the connecting portion (132), the connecting portion (132) is staggered in the vertical direction, and the connecting portion (132) is provided with a driving portion (133); A rotating wheel (14), the rotating wheel (14) is accommodated in the first chamber (111), and the rotating wheel (14) is provided with a protrusion (141) that cooperates with the driving part (133).

2. The circular rotary switch according to claim 1, characterized in that: The driving portion (133) is raised toward one side of the rotating wheel (14).

3. The circular rotary switch according to claim 1, characterized in that: The driving portion (133) is located on the top surface or the bottom surface of the connecting portion (132), and the driving portion (133) extends toward one side of the rotating wheel (14).

4. The circular rotary switch according to claim 1, characterized in that: The common terminal (12) comprises a first contact surface (121) and a second contact surface (122), and the first contact surface (121) and the second contact surface (122) respectively cooperate with corresponding connecting portions (132).

5. The circular rotary switch according to claim 4, characterized in that: The first contact surface (121) and the second contact surface (122) are respectively arranged at two ends of the common terminal (12).

6. The circular rotary switch according to claim 1, characterized in that: It also comprises an elastic member (15), the body (11) being provided with a second chamber (112), the second chamber (112) being provided with a plurality of gear slots (113) distributed in a circumferential array, one end of the elastic member (15) being matched with the rotating wheel (14), and the other end of the elastic member (15) sliding on the gear slot (113).

7. The circular rotary switch according to claim 6, characterized in that: The rotating wheel (14) is provided with a through slot (142); the elastic member (15) comprises two sleeves (151) and a first reset member (152); the sleeve (151) is provided with a first concave cavity (153); one end of the sleeve (151) abuts against the gear slot (113); one end of the first reset member (152) extends into the first concave cavity (153); the other end of the first reset member (152) passes through the through slot (142) and abuts against another first concave cavity (153).

8. The circular rotary switch according to claim 6, characterized in that: The invention also comprises a second reset member (16), the second chamber (112) is provided with an annular groove (114), the second reset member (16) is accommodated in the annular groove (114), the rotating wheel (14) is provided with a driving block (143), and the second reset member (16) is located on the movement track of the driving block (143).

9. The circular rotary switch according to claim 6, characterized in that: The body (11) comprises a base cover (17) and a base (18); the rotating wheel (14) is provided with a disc portion (144); the disc portion (144) cooperates with the base cover (17) to form the second chamber (112); and the disc portion (144) cooperates with the base (18) to form the first chamber (111).

10. The circular rotary switch according to claim 9, characterized in that: The base cover (17) and the base (18) are connected by snap-fit; or the base cover (17) and the base (18) are connected by bolts.

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