Multi-channel rotary switch

Abstract

The utility model relates to the technical field of switches, and discloses a multi-channel rotary switch, which comprises a rotating shaft control assembly, a shell and connecting terminals fixed on the shell, the connecting terminals comprise an output terminal and an input terminal, the rotating shaft control assembly comprises an elastic sheet control cam, and the elastic sheet control cam is connected with the shell. The elastic piece control cam is rotatably arranged in the shell, the elastic piece control cam is provided with two layers of cam structures with different shapes in the rotating shaft direction of the rotating shaft control assembly, each output terminal is also provided with two first contacts in the same direction, the input terminal is fixed with a conductive elastic piece in the shell, and the conductive elastic piece is arranged in the shell. And each input terminal is provided with two connection point positions fixed with the conductive elastic sheets. Through the design of the rotating shaft control assembly with the double-layer cam structure and the double-layer conductive elastic piece, random connection and combination between the multiple input terminals and the output terminals are achieved, and the whole size is small and installation is easy.

Description

Technical Field

[0001] This utility model relates to the technical field of switches, and more particularly to a multi-channel rotary switch. Background Technology

[0002] A rotary switch is an electrical component that uses rotation to open or close a circuit or switch functions. It typically consists of a rotating shaft and multiple contacts. Rotation of the shaft causes different contacts to close or open, thus controlling the circuit. Rotary switches are widely used in various electrical devices to switch between different connection states. However, current rotary switches can only switch between one or two circuits at a time. As the functions of existing electrical equipment increase, the need arises to switch between more circuits, and current rotary switches are increasingly unable to meet practical requirements. Summary of the Invention

[0003] The purpose of this invention is to provide a multi-channel rotary switch to solve the problem that existing rotary switches have relatively limited functionality.

[0004] This utility model is achieved through the following technical solution:

[0005] A multi-channel rotary switch includes a shaft control assembly, a housing, and connecting terminals fixed on the housing. The connecting terminals include output terminals and input terminals. The shaft control assembly includes a spring-loaded control cam, which is rotatably disposed within the housing. The spring-loaded control cam has two layers of cam structures of different shapes arranged in the direction of the shaft axis of the shaft control assembly. Each output terminal also has two first contacts in the same direction. The input terminals are fixed to conductive springs within the housing, and each input terminal has two connection points fixed to the conductive springs.

[0006] In one possible design, four input terminals and four output terminals are fixed on the housing, wherein two of the input terminals and two of the output terminals are located on the same side of the housing, and the other two input terminals and the output terminals are located on different sides of the housing.

[0007] In one possible design, the conductive spring is fixedly installed at only one connection point for each input terminal, and the conductive springs on the two input terminals on the same side are located at different layers.

[0008] In one possible design, one side of the housing has an input terminal and two output terminals, and the conductive spring is fixed to both connection points on the input terminal.

[0009] In one possible design, the pivot control assembly includes a connecting pivot that is fixedly connected to the spring control cam.

[0010] In one possible design, the conductive spring includes a spring body and an arched protrusion. One end of the spring body is fixedly connected to the input terminal, and the other end of the spring body is fixed with a second contact. The arched protrusion is fixed on the spring body and contacts the spring control cam.

[0011] In one possible design, the second contacts fixed on the two conductive springs on the same side are located between the two first contacts on different output terminals.

[0012] In one possible design, the pivot control assembly further includes a protrusion fixed to the spring control cam, and the protrusion has an elastic pin assembly comprising two positioning pins and a spring positioned between the two positioning pins.

[0013] In one possible design, the housing has at least two through holes.

[0014] In one possible design, the housing includes a first housing and a second housing, which are detachably connected, and the first housing is fixed with threads.

[0015] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0016] This invention utilizes a rotating shaft control component with a double-layer cam structure and a double-layer conductive spring to achieve arbitrary connection combinations between multiple input terminals and output terminals. It is small in size and easy to install, and can realize the connection control of multiple lines. When applied to complex circuits, it can effectively reduce the complexity of the circuit. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the rotary shaft control assembly of this utility model;

[0021] Figure 4 This is a schematic diagram of the first possible combination of the input terminal and the output terminal in this utility model;

[0022] Figure 5 This is a schematic diagram of the second type of connection between the input terminal and the output terminal in this utility model;

[0023] Figure 6 This is a schematic diagram of the installation structure of the connecting terminal in this utility model.

[0024] The reference numerals in the attached drawings represent: 1-rotating shaft control assembly, 101-connecting rotating shaft, 102-spring control cam, 103-protrusion, 2-housing housing, 201-first housing, 202-second housing, 3-connecting terminal, 301-input terminal, 302-output terminal, 4-first contact, 5-conductive spring, 501-spring body, 502-arched protrusion, 6-second contact, 7-positioning pin, 8-spring, 9-clearance groove, 11-connection point. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0026] Examples, such as Figures 1 to 6 As shown, this embodiment includes a shaft control assembly 1, a housing 2, and a connection terminal 3 fixed on the housing 2. The connection terminal 3 includes an output terminal 302 and an input terminal 301. The input terminal 301 is the current input pole, and the output terminal 302 is the output pole. The shaft control assembly 1 includes a connecting shaft 101 and a spring control cam 102. The connecting shaft 101 is fixedly connected to the spring control cam 102. The spring control cam 102 is rotatably disposed inside the housing 2. The spring control cam 102 is provided with two layers of cam structures of different shapes in the direction of the shaft axis of the shaft control assembly 1. Each output terminal 302 is also provided with two first contact points 4 in the same direction. The input terminal 301 is fixed to a conductive spring 5 inside the housing 2. Each input terminal 301 is provided with two connection points 11 fixed to the conductive spring 5. The line connecting the two connection points 11 is parallel to the shaft axis of the shaft control assembly 1.

[0027] In this embodiment, four input terminals 301 and four output terminals 302 are fixed on the housing 2. Two of the input terminals 301 and two of the output terminals 302 are located on the same side of the housing 2, while the other two input terminals 301 and two of the output terminals 302 are located on different sides of the housing 2. The two sides of the housing 2 where the connecting terminals 3 are provided are preferably opposite to each other, thereby ensuring that there is sufficient space for the conductive spring 5 inside the housing 2.

[0028] In this embodiment, each input terminal 301 has only one connection point 11 to fix the conductive spring 5. The conductive springs 5 ​​on the two input terminals 301 on the same side are arranged in different layers to prevent the two input terminals 301 from making contact and causing a short circuit.

[0029] In another embodiment, one side of the housing 2 is switched between an input terminal 301 and two output terminals 302. The conductive spring 5 is fixed at both connection points 11 on the input terminal 301. The two output terminals 302 can be connected at the same time through one input terminal 301, or connected to one of the output terminals 302, or not connected to either output terminal 302, thus realizing multiple states of connection.

[0030] It should be noted that the single-sided configuration of one input terminal 301 with two output terminals 302 and two input terminals 301 with two output terminals 302 can be installed on the same rotary switch. Of course, only one type of single-sided terminal combination structure can also be installed on the same rotary switch.

[0031] In this embodiment, the conductive spring 5 includes a spring body 501 and an arched protrusion 502. One end of the spring body 501 is fixedly connected to the input terminal 301, and the other end of the spring body 501 is fixed with a second contact 6. The arched protrusion 502 is a protrusion fixed on the spring body 501 and has a contact effect with the spring control cam 102. The arched protrusion 502 contacts the cam side of the spring control cam 102.

[0032] Beneficial reference Figure 2The second contacts 6 fixed on the two conductive springs 5 ​​on the same side are located between the two first contacts 4 on different output terminals 302. One second contact 6 can contact the first contacts 4 on different output terminals 302 to form different paths. When the second contact 6 is located between the two first contacts 4, the input terminal 301 is disconnected from either output terminal 302. Therefore, the cam on the spring control cam 102 needs to be designed with three structures: concave, flat, and convex, in order to complete the circuit switching. The curved feature of the side of the cam contacts the arched convex 502. During the rotation of the spring control cam 102, when the arched convex 502 is in contact with the concave curve, it is connected to the lowermost output terminal 302. When it is in contact with the convex curve, it is connected to the upper output terminal 302. In the flat position, the input terminal 301 is not connected to either of the two output terminals 302.

[0033] Thus, the four terminals on one side of the housing 2 can generate multiple connection states, and the four terminals on the other side of the housing 2 can also generate multiple connection states. The combination of the connection states on both sides can enable the entire rotary switch to generate multiple connection states, thereby enabling a rotary switch to switch between multiple circuit connection combinations.

[0034] Combined Figure 3 The double-layer cam structure design allows for combinations such as two input terminals 301 and two output terminals 302 to be connected in pairs, disconnected in pairs, or one connected and the other disconnected on the same side. At the same time, the spring-controlled cam 102 can also be linked to the connection and disconnection states between the input terminals 301 and the output terminals 302 on the other side, so that the entire switch can produce multiple states such as four connected, three connected, and two connected, thereby forming multiple paths.

[0035] In this embodiment, the rotating shaft control assembly 1 further includes a protrusion 103, which is fixed to the spring control cam 102. The protrusion 103 is provided with an elastic pin assembly, which includes two positioning pins 7 and a spring 8 between the two positioning pins 7. The outer shell 2 includes a first shell 201 and a second shell 202, which are detachably connected. The inner side of the second shell 202 is provided with a clearance groove 9, which includes eight evenly distributed positioning angles in a ring. After the positioning pins 7 are inserted into the positioning angles, the rotation of the rotating shaft control assembly 1 will be subject to a certain resistance, thereby maintaining the existing state. The eight positioning angles on the clearance groove 9 can correspond to the eight connected states of the entire rotary switch.

[0036] refer to Figure 1In one embodiment, the outer casing 2 has at least two through holes, and the entire rotary switch can be installed and fixed by installing fasteners such as screws in the two through holes.

[0037] refer to Figure 2 In another embodiment, a thread 10 is fixed on the first housing 201, and the thread 10 is fixed to the threaded hole at the installation position to complete the installation of the rotary switch.

[0038] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A multi-channel rotary switch, comprising a shaft control assembly (1), a housing (2), and connecting terminals (3) fixed to the housing (2), characterized in that, The connection terminal (3) includes an output terminal (302) and an input terminal (301); The rotating shaft control assembly (1) includes a spring control cam (102), which is rotatably disposed inside the housing (2). The spring control cam (102) has two layers of cam structures of different shapes in the direction of the rotating shaft of the rotating shaft control assembly (1). Each output terminal (302) also has two first contacts (4) in the same direction. The input terminal (301) is fixed to the conductive spring (5) inside the housing (2). Each input terminal (301) has two connection points (11) fixed to the conductive spring (5).

2. A multiway rotary switch according to claim 1, wherein The housing (2) is fixed with four input terminals (301) and four output terminals (302), wherein two of the input terminals (301) and two of the output terminals (302) are located on the same side of the housing (2), and the other two input terminals (301) and output terminals (302) are located on different sides of the housing (2).

3. A multiway rotary switch according to claim 1 or 2, characterised in that, Each input terminal (301) has only one connection point (11) to fix the conductive spring (5), and the conductive spring (5) on the two input terminals (301) on the same side is set at different layers.

4. A multiway rotary switch according to claim 1, wherein The outer casing (2) has an input terminal (301) and two output terminals (302) on one side. The two connection points on the input terminal (301) are fixed with the conductive spring (5).

5. A multiway rotary switch according to claim 1, wherein The rotating shaft control assembly (1) includes a connecting rotating shaft (101), which is fixedly connected to the spring control cam (102).

6. A multiway rotary switch according to claim 3, wherein The conductive spring (5) includes a spring body (501) and an arched protrusion (502). One end of the spring body (501) is fixedly connected to the input terminal (301), and the other end of the spring body (501) is fixed with a second contact (6). The arched protrusion (502) is fixed on the spring body (501) and contacts the spring control cam (102).

7. A multiway rotary switch according to claim 1, wherein The second contacts (6) fixed on the two conductive springs (5) on the same side are located between the two first contacts (4) on different output terminals (302).

8. A multiway rotary switch according to claim 1, wherein The rotating shaft control assembly (1) further includes a protrusion (103), which is fixed to the spring control cam (102). The protrusion (103) is provided with an elastic pin assembly, which includes two positioning pins (7) and a spring (8) between the two positioning pins (7).

9. A multiway rotary switch according to claim 1, wherein The outer shell (2) has at least two through holes.

10. A multiway rotary switch according to claim 1, wherein The outer shell (2) includes a first shell (201) and a second shell (202), which are detachably connected, and a thread (10) is fixed on the first shell (201).

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