Rotary switch

Abstract

The utility model discloses a rotary switch, which comprises a lower shell, an upper shell and a rotary device, the upper end face of the lower shell is provided with a mounting cavity, the upper shell and the lower shell are clamped and cover the mounting cavity, and one of the lower end face of the upper shell and the upper end face of the lower shell is provided with at least two first mounting grooves communicated with the mounting cavity. At least two first plugging holes are formed in one of the upper shell and the lower shell, and all the first plugging holes are communicated with all the first mounting grooves in a one-to-one correspondence manner; the rotating device is rotatably mounted in the mounting cavity, and a control end of the rotating device penetrates through the upper shell or the lower shell; first installation grooves are formed in the upper shell, first contacts are installed in the first installation grooves, the first contacts are integrally-formed first elastic contact pieces, first insertion positions are arranged on the first elastic contact pieces, all the insertion positions correspond to all the first insertion holes in a one-to-one mode, and second contacts are installed between the lower shell and the upper shell. The utility model provides a rotary switch which is simpler in structure, more convenient to assemble and beneficial to automatic assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical switches, and particularly relates to a rotary switch. Background Art

[0002] A rotary switch is a commonly used electrical component, which is used to control the on-off of two or more circuits to achieve adjustment of two or more gears. At present, some rotary switches on the market generally include an upper shell and a lower shell. A rotary device is rotatably installed between the upper shell and the lower shell. Two or more first contacts and second contacts are installed between the upper shell and the lower shell. By rotating the rotary device, the second contact can be electrically connected to any one of the first contacts to achieve circuit switching. Among them, the first contact generally includes two mutually cooperating elastic contact pieces, and these elastic contact pieces are clamped and fixed by the upper shell and the lower shell. The head of the external wire can be inserted between the two mutually cooperating elastic contact pieces and be clamped and fixed by the two elastic contact pieces. This kind of rotary switch has more overall components, the assembly process is relatively complex, the assembly efficiency is low, and it is not conducive to automatic assembly. Content of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a rotary switch with a more concise structure, more convenient assembly, improved assembly efficiency, and is conducive to automatic assembly.

[0004] A rotary switch according to an embodiment of the utility model includes a lower shell, an upper shell, and a rotary device. An installation cavity is formed on the upper end surface of the lower shell. The upper shell is snap-connected to the lower shell to cover the installation cavity. At least two first installation grooves communicating with the installation cavity are formed on one of the lower end surface of the upper shell and the upper end surface of the lower shell. At least two first insertion holes are formed on one of the upper shell and the lower shell. All the first insertion holes are in one-to-one correspondence and communication with all the first installation grooves. The rotary device is rotatably installed in the installation cavity, and the operating end of the rotary device penetrates through the upper shell or the lower shell. Among them, all the first installation grooves are provided with first contacts, the first contacts are integrally formed first elastic contact members, first insertion positions are arranged on the first elastic contact members, all the insertion positions are in one-to-one correspondence with all the first insertion holes, and a second contact is installed between the lower shell and the upper shell. By rotating the operating end of the rotary device, the rotary device can electrically connect the second contact to any one of the first elastic contact members.

[0005] A rotary switch according to an embodiment of the present utility model has at least the following beneficial effects: Compared with the existing rotary switch, the rotary switch provided by the present utility model uses an integrally formed first elastic contact member to replace the two elastic contact pieces of the existing first contact, reducing the number of parts and making the structure more concise. At the same time, a first installation groove is provided to install the first elastic contact member, and the installation of the first elastic contact member is relatively simple and convenient. Through the above settings, during the assembly process of the rotary switch, the first elastic contact member can be installed in the first installation groove, the rotating device can be installed in the installation cavity, and the second contact can be installed on the upper shell or the lower shell, and then the lower shell and the upper shell can be installed together, thereby completing the assembly of the rotary switch. The entire assembly process is simpler and more convenient, improving the assembly efficiency and being conducive to manual assembly or automated assembly.

[0006] According to some embodiments of the present utility model, the first installation groove is provided on the lower end surface of the upper shell, the first installation groove is located above the installation cavity, the first elastic contact member is clamped in the corresponding first installation groove, and the bottom of the first elastic contact member can be in electrical contact with the rotating device.

[0007] According to some embodiments of the present utility model, the first elastic contact member includes a U-shaped first elastic body and a first elastic pressing piece. The first elastic body is installed in the corresponding first installation groove. One end of the first elastic pressing piece is integrally connected to one of the folded edges of the first elastic body, and the other end of the first elastic pressing piece cooperates with the other folded edge of the first elastic body to enclose the first insertion position.

[0008] According to some embodiments of the present utility model, first clamping protrusions are provided on both folded edges of the first elastic body, and the first clamping protrusions are clamped with the inner wall of the corresponding first installation groove.

[0009] According to some embodiments of the present utility model, the upper shell and the lower shell are clamped by elastic buckles.

[0010] According to some embodiments of the present utility model, the rotating device includes a rotating member and a conductive contact piece. The rotating member is rotatably installed in the installation cavity. The conductive contact piece is sleeved on the rotating member and is clamped with the rotating member. The second contact includes a first conductive connecting piece. One end of the first conductive connecting piece is installed on the lower shell, and the other end of the first conductive connecting piece is located between the conductive contact piece and the rotating member and is in electrical contact with the conductive contact piece. When the rotating member rotates, the conductive contact piece can be in electrical contact with any one of the first elastic contact members.

[0011] According to some embodiments of the present utility model, the operating end is formed at one end of the rotating member and penetrates through the lower housing. An installation step and an installation portion are formed at the other end of the rotating member. The installation portion is rotatably inserted into the upper housing and rotatably penetrates through the first conductive connection piece. The installation step is in contact with the first conductive connection piece, and the conductive contact piece is sleeved and clamped on the installation portion.

[0012] According to some embodiments of the present utility model, the conductive contact piece is provided with an insertion hole. Clamping pieces are formed on opposite side walls of the insertion hole. Convex strips are provided on opposite side surfaces of the installation portion. The installation portion penetrates through the insertion hole and between the two clamping pieces, and the two convex strips respectively abut against and limit the two clamping pieces.

[0013] According to some embodiments of the present utility model, one of the lower end surface of the upper housing and the upper end surface of the lower housing is provided with a second installation groove communicating with the installation cavity. One of the upper housing and the lower housing is provided with a second insertion hole communicating with the second installation groove. A second elastic contact member is installed in the second installation groove. The second elastic contact member is provided with a second insertion position corresponding to the second insertion hole. The second elastic contact member is electrically connected to the second elastic contact member through the rotating device.

[0014] According to some embodiments of the present utility model, the second elastic contact member is integrally connected with a second conductive connection piece. The second conductive connection piece is arranged in an arc shape around the rotating member. When the conductive contact piece is in electrical contact with any one of the first elastic contact members, the conductive contact piece is in electrical contact with the second conductive connection piece.

[0015] The additional aspects and advantages of the present utility model will be partly given in the following description, partly will become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0016] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0017] Figure 1 is a schematic diagram of a rotary switch according to an embodiment of the present utility model;

[0018] Figure 2 is Figure 1 an internal schematic diagram of a rotary switch shown;

[0019] Figure 3 is Figure 1 an exploded view of a rotary switch shown;

[0020] Figure 4 is Figure 1 a schematic diagram of a first elastic contact member of a rotary switch shown;

[0021] Figure 5 is Figure 1 a schematic diagram of a second elastic contact member of a rotary switch shown;

[0022] Figure 6 is Figure 1 a schematic diagram of an upper housing of a rotary switch shown.

[0023] Reference numerals:

[0024] lower housing 100, elastic buckle 110, installation cavity 120, third installation groove 130, upper housing 200, first installation groove 210, second installation groove 220, first insertion hole 230, second insertion hole 240, third insertion hole 250, rotation device 300, rotating member 310, operating end 311, installation step 312, installation portion 313, rib 3131, conductive contact piece 320, insertion hole 321, clamping piece 322, first elastic contact member 400, first elastic main body 410, first clamping projection 411, first elastic pressing piece 420, first insertion position 430, second contact 500, first conductive connection piece 510, bending portion 511, elastic piece 520, third insertion position 530, second elastic contact member 600, second elastic main body 610, second clamping projection 611, second elastic pressing piece 620, second conductive connection piece 630, second insertion position 640. Detailed implementation manners

[0025] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0026] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings, and is 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 thus should not be construed as limiting the present invention.

[0027] In the description of the present utility model, the meaning of "a number of" is one or more, the meaning of "a plurality of" is more than two, and understandings such as "greater than", "less than", "exceeding", etc. do not include the corresponding number, and understandings such as "above", "below", "within", etc. include the corresponding number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0028] In the description of the present utility model, unless otherwise clearly defined, terms such as "arrangement", "installation", "connection", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0029] Referring to Figures 1 to 3 、 Figure 6 、, a rotary switch according to an embodiment of the present utility model includes a lower case 100, an upper case 200, and a rotary device 300. An installation cavity 120 is formed on the upper end surface of the lower case 100. The upper case 200 is snap-fitted with the lower case 100 to cover the installation cavity 120. At least two first installation grooves 210 communicating with the installation cavity 120 are formed on one of the lower end surface of the upper case 200 and the upper end surface of the lower case 100. At least two first insertion holes 230 are formed on one of the upper case 200 and the lower case 100. All the first insertion holes 230 communicate with all the first installation grooves 210 in one-to-one correspondence; the rotary device 300 is rotatably installed in the installation cavity 120, and the operating end 311 of the rotary device 300 penetrates through the upper case 200 or the lower case 100; wherein, all the first installation grooves 210 are provided with first contacts, the first contacts are integrally formed first elastic contact members 400, a first insertion position 430 is arranged on the first elastic contact member 400, all the insertion positions correspond to all the first insertion holes 230 in one-to-one correspondence, and a second contact 500 is installed between the lower case 100 and the upper case 200. By rotating the operating end 311 of the rotary device 300, the rotary device 300 can electrically connect the second contact 500 with any one of the first elastic contact members 400.

[0030] Compared with the existing rotary switch, the rotary switch provided by the present utility model uses an integrally formed first elastic contact member 400 to replace the two elastic contact pieces of the existing first contact, which can reduce at least two component numbers and has a more streamlined structure. At the same time, a first installation groove 210 is provided to install the first elastic contact member 400, and the installation of the first elastic contact member 400 is relatively simple and convenient. Through the above settings, during the assembly process of the rotary switch, the first elastic contact member 400 can be installed in the first installation groove 210, the rotary device 300 can be installed in the installation cavity 120, and the second contact 500 can be installed on the upper shell 200 or the lower shell 100, and then the lower shell 100 and the upper shell 200 can be installed together, thereby completing the assembly of the rotary switch. The entire assembly process is simpler and more convenient, improving the assembly efficiency, which is conducive to manual assembly or automated assembly, and thus can reduce the production and manufacturing costs of the rotary switch. In addition, the wiring of the rotary switch is simple and convenient, and the head of the external wire can be inserted into the first insertion position 430 on the corresponding first elastic contact member 400 from the corresponding first insertion hole 230.

[0031] Referring to Figure 4 and Figure 6 , according to some embodiments of the present utility model, the first installation groove 210 is provided on the lower end surface of the upper shell 200, the first installation groove 210 is located above the installation cavity 120, the first elastic contact member 400 is clamped in the corresponding first installation groove 210, and the bottom of the first elastic contact member 400 can be in electrical contact with the rotary device 300. Through the above settings, on the one hand, the first elastic contact member 400 can be fixed in the first installation groove 210 by clamping the inner wall of the first installation groove 210 through the first elastic main body 410, and the assembly of the first elastic contact member 400 is simple and convenient. On the other hand, the first installation groove 210 can overlap with the position of the installation cavity 120 as much as possible, and the first elastic contact member 400 can fall within the projection range of the installation cavity 120 as much as possible. Thus, the overall size of the entire rotary switch can be made smaller, reducing the overall volume, reducing the overall material consumption, and lowering the production cost.

[0032] Referring to Figure 2 and Figure 4 , according to some embodiments of the present utility model, the first elastic contact member 400 includes a U-shaped first elastic main body 410 and a first elastic pressing piece 420. The first elastic main body 410 is installed in the corresponding first installation groove 210. One end of the first elastic pressing piece 420 is integrally connected to one of the folding edges of the first elastic main body 410, and the other end of the first elastic pressing piece 420 cooperates with the other folding edge of the first elastic main body 410 to enclose a first insertion position 430. Through the above settings, the entire first elastic contact member 400 can be formed by bending a long strip-shaped part, and the production is simple and convenient. In addition, the structure of the first elastic contact member 400 can also improve the overall strength.

[0033] Referring to Figure 4 , according to some embodiments of the present invention, first latching protrusions 411 are provided on both folded edges of the first elastic body 410, and the first latching protrusions 411 are latched with the inner wall of the corresponding first installation groove 210. Thus, the first elastic contact member 400 can be firmly installed in the first installation groove 210.

[0034] In the specific implementation process, the upper shell 200 and the lower shell 100 are usually plastic shells. By providing the first latching protrusions 411 on the first elastic body 410 of the first elastic contact member 400, there is no need to provide grooves or protrusions on the inner wall of the first installation groove 210, and the latching can be directly achieved by embedding the first latching protrusions 411 into the inner wall of the first installation groove 210.

[0035] Of course, in some other embodiments, the second elastic body 610 can also be press-fitted with the second installation groove 220 and thus be clamped in the second installation groove 220.

[0036] Referring to Figure 1 and Figure 3 , according to some embodiments of the present invention, the upper shell 200 and the lower shell 100 are connected by elastic buckles 110. Thus, during the assembly process of the rotary switch, only by buckling the upper shell 200 and the lower shell 100 together, the upper shell 200 and the lower shell 100 can be fixed by the elastic buckles 110, and the assembly is more convenient and simple.

[0037] Of course, it can be imagined that in some other embodiments, the upper shell 200 and the lower shell 100 can also be fixedly connected by bolts.

[0038] Referring to Figure 2 and Figure 3 , according to some embodiments of the present invention, the rotating device 300 includes a rotating member 310 and a conductive contact piece 320. The rotating member 310 is rotatably installed in the installation cavity 120, the conductive contact piece 320 is sleeved on the rotating member 310 and is latched with the rotating member 310. The second contact 500 includes a first conductive connection piece 510. One end of the first conductive connection piece 510 is installed on the lower shell 100, and the other end of the first conductive connection piece 510 is located between the conductive contact piece 320 and the rotating member 310 and is in electrical contact with the conductive contact piece 320. When the rotating member 310 rotates, the conductive contact piece 320 can be in electrical contact with any one of the first elastic contact members 400. During the assembly process of the rotary switch, the rotating member 310 can be first assembled in the installation cavity 120, then the first conductive connection piece 510 can be assembled on the lower shell 100, and then the conductive contact piece 320 can be assembled on the rotating member 310. By adopting the above assembly method, the assembly is simple and convenient.

[0039] Referring to Figure 1 and Figure 3, according to some embodiments of the present utility model, the operating end 311 is formed at one end of the rotating member 310 and passes through the lower housing 100. An installation step 312 and an installation portion 313 are formed at the other end of the rotating member 310. The installation portion 313 is rotatably inserted into the upper housing 200. With the above arrangement, the rotating member 310 can rotate more stably. Among them, the installation portion 313 is rotatably inserted through the first conductive connection piece 510, and the installation step 312 is attached to the first conductive connection piece 510. The conductive contact piece 320 is sleeved and clamped on the installation portion 313. Thus, the conductive contact piece 320 and the first conductive connection piece 510 are in surface contact, which can make the conductive contact piece 320 and the first conductive connection piece 510 in good contact.

[0040] Refer to Figure 2 and Figure 3 , according to some embodiments of the present utility model, the conductive contact piece 320 is provided with an insertion hole 321. Clamping pieces 322 are formed on the opposite side walls of the insertion hole 321. Protrusions 3131 are provided on the opposite side surfaces of the installation portion 313. The installation portion 313 is inserted through the insertion hole 321 and between the two clamping pieces 322, and the two protrusions 3131 respectively abut and limit the two clamping pieces 322. With the above arrangement, the conductive contact piece 320 can be firmly installed on the rotating member 310, and through the cooperation between the protrusions 3131 and the clamping pieces 322, the conductive contact piece 320 and the first conductive connection piece 510 can maintain good contact.

[0041] Refer to Figure 2 , Figure 3 and Figure 4 , according to some embodiments of the present utility model, one of the lower end surface of the upper housing 200 and the upper end surface of the lower housing 100 is provided with a second installation groove 220 communicating with the installation cavity 120. One of the upper housing 200 and the lower housing 100 is provided with a second insertion hole 240 communicating with the second installation groove 220. A second elastic contact member 600 is installed in the second installation groove 220. The second elastic contact member 600 is provided with a second insertion position 640 corresponding to the second insertion hole 240. The second elastic contact member 600 is electrically connected to the second elastic contact member 600 through the rotating device 300. Through the setting of the second elastic contact member 600, more gear adjustments can be added.

[0042] Refer to Figure 2 , Figure 3 and Figure 5, according to some embodiments of the present utility model, the second elastic contact member 600 is integrally connected with a second conductive connecting piece 630. The second conductive connecting piece 630 is arranged in an arc shape around the rotating member 310. When the conductive contact piece 320 is in electrical contact with any one of the first elastic contact members 400, the conductive contact piece 320 is in electrical contact with the second conductive connecting piece 630. Among them, when the conductive contact piece 320 is in electrical contact with different first elastic contact members 400, the length of the second conductive connecting piece 630 incorporated into the circuit between the second elastic contact member 600 and the second elastic contact member 600 is also different, resulting in different resistances of the circuit between the second elastic contact member 600 and the second elastic contact member 600. Thus, a resistive gear adjustment is formed between the second elastic contact member 600 and the second elastic contact member 600, and a circuit switching type gear adjustment can be formed between the second elastic contact member 600 and each first elastic contact member 400. Therefore, the same rotary switch can have different gear adjustment functions.

[0043] Referring to Figure 5 , in the specific implementation process, the second elastic contact member 600 includes a U-shaped second elastic main body 610 and a second elastic pressing piece 620. One end of the second elastic pressing piece 620 is integrally connected with one of the folded edges of the second elastic main body 610, and the other end of the second elastic pressing piece 620 cooperates with the other folded edge of the second elastic main body 610 to enclose a second insertion position 640. The second conductive connecting piece 630 is integrally connected with the second elastic main body 610. Through the above settings, the entire second elastic contact member 600 can be formed by bending a strip-shaped component, which is simple and convenient to produce.

[0044] In some embodiments, the second elastic main body 610 is clamped in the second installation groove 220. Specifically, second clamping protrusions 611 are provided on the two folded edges of the second elastic main body 610, and the second clamping protrusions 611 are clamped on the inner wall of the second installation groove 220.

[0045] Of course, in some other embodiments, the second elastic main body 610 can also be in interference fit with the second installation groove 220 and thus be clamped in the second installation groove 220.

[0046] Referring to Figure 2 , Figure 3, in some embodiments, the lower case 100 is provided with a third installation groove 130. One end of the first conductive connection piece 510 is provided with a bending portion 511, and the bending portion 511 is inserted into the third installation groove 130. The above-mentioned second contact 500 further includes an L-shaped elastic piece 520. The elastic piece 520 is installed in the third installation groove 130. The elastic piece 520 and the bending portion 511 cooperate with each other to form a third insertion position 530. The upper case 200 is provided with a third insertion hole 250 communicating with the third installation groove 130. The third insertion hole 250 corresponds to the third insertion position 530. Thus, it is convenient to wire the second contact 500. Specifically, the head of the external wire can be inserted into the third insertion position 530 from the third insertion hole 250, and the head of the electricity is clamped and fixed by the cooperation of the elastic piece 520 and the bending portion 511.

[0047] In other embodiments, it can be imagined that the above-mentioned second contact 500 can also be set as an integrally formed component. Specifically, the above-mentioned elastic piece 520 can be replaced with a U-shaped third elastic body. One folded edge of the third elastic body is integrally connected with a third elastic pressing piece. The third elastic pressing piece and the other folded edge of the third elastic body cooperate with each other to enclose a third insertion position 530. The other folded edge of the third elastic body is integrally connected with the first conductive connection piece 510. Thus, the second elastic contact member 600 as a whole can be formed by bending, which is convenient and simple to produce, and can reduce the parts of the rotary switch.

[0048] The technical features of the above-mentioned embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0049] The above has described this embodiment in detail with reference to the drawings, but the present invention is not limited to the above embodiment. Within the scope of knowledge possessed by those of ordinary skill in the art in the technical field, various changes can also be made without departing from the purpose of the present invention.

Claims

1. A rotary switch, characterized in that, Comprising: A lower shell (100) with an installation cavity (120) formed on its upper end face; An upper shell (200) which is snap - connected to the lower shell (100) and covers the installation cavity (120). At least two first installation grooves (210) communicating with the installation cavity (120) are formed on one of the lower end face of the upper shell (200) and the upper end face of the lower shell (100). At least two first insertion holes (230) are formed on one of the upper shell (200) and the lower shell (100). All the first insertion holes (230) communicate with all the first installation grooves (210) in a one - to - one correspondence; A rotating device (300) rotatably installed in the installation cavity (120), and the operating end (311) of the rotating device (300) penetrates through the upper shell (200) or the lower shell (100); Among them, all the first installation grooves (210) are installed with first contacts. The first contacts are integrally formed first elastic contact members (400). A first insertion position (430) is provided on the first elastic contact member (400). All the insertion positions correspond to all the first insertion holes (230) in a one - to - one correspondence. A second contact (500) is installed on the lower shell (100) or the upper shell (200). By rotating the operating end (311) of the rotating device (300), the rotating device (300) can electrically connect the second contact (500) with any one of the first elastic contact members (400).

2. The rotary switch according to claim 1, wherein The first installation groove (210) is arranged on the lower end face of the upper shell (200), and the first installation groove (210) is located above the installation cavity (120). The first elastic contact member (400) is clamped in the corresponding first installation groove (210), and the bottom of the first elastic contact member (400) can be in electrical contact with the rotating device (300).

3. A rotary switch according to claim 1, characterized in that, The first elastic contact member (400) includes a U - shaped first elastic body (410) and a first elastic pressing piece (420). The first elastic body (410) is installed in the corresponding first installation groove (210). One end of the first elastic pressing piece (420) is integrally connected to one of the flanges of the first elastic body (410), and the other end of the first elastic pressing piece (420) cooperates with the other flange of the first elastic body (410) to enclose the first insertion position (430).

4. A rotary switch according to claim 3, wherein, First clamping protrusions (411) are arranged on both flanges of the first elastic body (410), and the first clamping protrusions (411) are clamped with the inner wall of the corresponding first installation groove (210).

5. A rotary switch according to claim 1, characterized in that, The upper shell (200) and the lower shell (100) are snap - connected by elastic buckles (110).

6. A rotary switch according to any one of claims 1 to 5, characterized in that, The rotating device (300) includes a rotating member (310) and a conductive contact piece (320). The rotating member (310) is rotatably installed in the installation cavity (120). The conductive contact piece (320) is sleeved on the rotating member (310) and is snap-connected to the rotating member (310). The second contact (500) includes a first conductive connection piece (510). One end of the first conductive connection piece (510) is installed on the lower shell (100). The other end of the first conductive connection piece (510) is located between the conductive contact piece (320) and the rotating member (310) and is in electrical contact with the conductive contact piece (320). When the rotating member (310) rotates, the conductive contact piece (320) can be in electrical contact with any one of the first elastic contact members (400).

7. A rotary switch according to claim 6, wherein The operating end (311) is formed at one end of the rotating member (310) and passes through the lower shell (100). An installation step (312) and an installation part (313) are formed at the other end of the rotating member (310). The installation part (313) is rotatably inserted into the upper shell (200). The installation part (313) is rotatably inserted through the first conductive connection piece (510). The installation step (312) is in contact with the first conductive connection piece (510). The conductive contact piece (320) is sleeved and snap-connected to the installation part (313).

8. A rotary switch according to claim 7, wherein, The conductive contact piece (320) is provided with an insertion hole (321). Clamping pieces (322) are formed on opposite side walls of the insertion hole (321). Protrusions (3131) are provided on opposite side surfaces of the installation part (313). The installation part (313) passes through the insertion hole (321) and between the two clamping pieces (322), and the two protrusions (3131) respectively abut against and limit the two clamping pieces (322).

9. A rotary switch according to claim 6, wherein, One of the lower end surface of the upper shell (200) and the upper end surface of the lower shell (100) is provided with a second installation groove (220) communicating with the installation cavity (120). One of the upper shell (200) and the lower shell (100) is provided with a second insertion hole (240) communicating with the second installation groove (220). A second elastic contact member (600) is installed in the second installation groove (220). The second elastic contact member (600) is provided with a second insertion position (640) corresponding to the second insertion hole (240). The second elastic contact member (600) is electrically connected to the second elastic contact member (600) through the rotating device (300).

10. A rotary switch according to claim 9, characterized in that, The second elastic contact member (600) is integrally connected with a second conductive connection piece (630). The second conductive connection piece (630) is arranged in an arc shape around the rotating member (310). When the conductive contact piece (320) is in electrical contact with any one of the first elastic contact members (400), the conductive contact piece (320) is in electrical contact with the second conductive connection piece (630).

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