A three-legged rocker switch with light

Abstract

The present application relates to a three-pin rocker switch with a light, which relates to the technical field of rocker switches and includes a housing, a button hinged to the top of the housing, and a first connection pin, a third connection pin, and a second connection pin inserted into the bottom of the housing. A transmission assembly is provided on the side of the button facing the bottom of the housing, a rocker contact is swingably provided on the third connection pin and is linked to the transmission assembly, and a static contact capable of cooperating with the end of the rocker contact is provided on the first connection pin and the second connection pin, respectively. A fixing assembly is provided between the button and the transmission assembly, a PCB board is provided in the fixing assembly, the PCB board and the transmission assembly are connected and insulated from each other, a light-emitting module is provided on the PCB board, and a metal reed is provided on the end of the first connection pin and the second connection pin facing the PCB board, and the ends of the two reeds always contact the PCB board and form an electrical connection. The three-position rocker switch with a light in the present application can be consistent with the traditional three-position rocker switch without a light in terms of socket standards.

Description

Technical Field

[0001] The present application relates to the technical field of rocker switches, and in particular to a three-legged rocker switch with a light. Background Art

[0002] Switches are used to connect and disconnect circuits to control the connected electrical equipment. Currently, rocker switches mainly include two-speed and three-speed. The three-speed rocker switch can control the connection or disconnection of two circuits respectively to achieve the control of two electrical equipment or the switching of two connected circuits.

[0003] The three-position rocker switch in the related art is usually divided into a three-pin or four-pin rocker switch. The button of the three-pin rocker switch is usually made opaque, that is, without an indicator light. If an indicator light is required, it needs to be made into a four-pin rocker switch.

[0004] For example, the utility model patent with authorization announcement number CN215377297U discloses a three-speed rocker switch, which includes a shell, a control component, a pin, an indicator light and a conductive component. The pin includes a first pin located at the bottom of the shell and a third pin and a third pin located on both sides of the first pin. The second pin and the third pin are both provided with static contacts. The conductive component includes a seesaw contact and a moving contact provided at both ends of the seesaw contact. The control component includes a transmission seat, a button provided on the transmission seat, a driving rod provided at the bottom of the transmission seat and an elastic member abutting against the bottom of the transmission seat and the driving rod. The button is movably hinged to the shell, and it also includes a conductive member inserted into the shell, namely the fourth pin. The top of the conductive member is provided with a fork, including a first contact pin and a second contact pin extending in the direction of rotation of the button. A gap is formed between the first contact pin and the second contact pin. A conductive wire is connected to the indicator light, and the indicator light is turned on by the button controlling the conductive wire to abut against the first contact pin or the second contact pin.

[0005] Regarding the above-mentioned related technologies, the three-position rocker switch with indicator light and the traditional three-position rocker switch without indicator light need to be configured with different sockets, which cannot achieve standardization and needs to be improved. Summary of the Invention

[0006] The purpose of this application is to provide a three-legged rocker switch with a light, so as to share a socket of a unified standard with a traditional three-position rocker switch without a light.

[0007] The present application provides a three-legged rocker switch with a light, which adopts the following technical solution:

[0008] A three-legged rocker switch with a light comprises a housing, a button hinged to the top of the housing, and a first connecting pin, a third connecting pin, and a second connecting pin sequentially inserted into the bottom of the housing, the first connecting pin and the second connecting pin being respectively located on either side of the third connecting pin, a transmission assembly being provided on the side of the button facing the bottom of the housing, a seesaw contact being swingably provided on the third connecting pin and linked to the transmission assembly, a static contact being respectively provided on the first connecting pin and the second connecting pin and being capable of cooperating with the end of the seesaw contact, a fixing assembly being provided between the button and the transmission assembly, a PCB being provided in the fixing assembly, the PCB board being connected to the transmission assembly and insulated from each other, a light-emitting module being provided on the PCB board, the light-emitting module including an indicator light and a resistor, a metal reed being provided at one end of the first connecting pin and the second connecting pin facing the PCB board, the ends of the two reeds always being in contact with the PCB board and forming an electrical connection.

[0009] By adopting the above technical solution, in the control circuit, the three-legged rocker switch of the present application is used to control the switching of power supply to the first electrical appliance and the second electrical appliance, or to cut off the power supply at the same time, and when power is supplied to the first electrical appliance or the second electrical appliance, the indicator light will light up to indicate that the power is on.

[0010] In the circuit-off state, since the two static contacts on the first connecting pin and the second connecting pin are not in contact with the rocker contact, the PCB board is not powered, and the light-emitting module is in an off state.

[0011] When the toggle button is activated, the transmission assembly and the seesaw contact swing, causing one end of the seesaw contact to contact the stationary contact on the first pin, thereby forming an electrical connection. Current is then input through the third pin and output through the seesaw contact from the first pin, thereby energizing the first electrical device. The two metal reeds are also conductive, and the resistors on the PCB convert the current flowing through the PCB into a microcurrent, illuminating the light-emitting module. However, after the microcurrent is output from the second pin, it is too low to power the second electrical device, preventing it from activating.

[0012] Similarly, when one end of the rocker contact contacts the static contact on the second connection pin to form an electrical connection, the second electrical appliance is enabled, while the first electrical appliance cannot be enabled, and the light emitting module is also lit.

[0013] Based on this structure, this application effectively solves the problem that the three-position rocker switch with light can be consistent with the traditional three-position rocker switch without light in terms of socket standards, thereby saving social costs and promoting social progress.

[0014] Optionally, the fixing assembly includes a mounting block, and two clearance holes are provided on a side of the mounting block facing the transmission assembly, and the two reeds respectively pass through the corresponding clearance holes and come into contact with the side wall of the PCB board.

[0015] By adopting the above technical solution, the arrangement of the mounting block facilitates the installation and fixation of the PCB, while the two clearance holes can ensure that the reed is always electrically connected to the PCB.

[0016] Optionally, a mounting ring is provided on a side of the mounting block facing the button, and the mounting ring is interference fit with the inner wall of the button.

[0017] By adopting the above technical solution and providing the mounting ring, the button and the mounting ring can be installed and fixed by plugging and pressing them together. The structure is simple and easy to install.

[0018] Optionally, fixing strips are provided on two opposite sides of the inner wall of the button, and fixing grooves are provided on two opposite sides of the mounting ring, and the fixing strips and the fixing grooves are plugged into each other to form an interference fit.

[0019] By adopting the above technical solution, through the plug-in setting between the fixing strip and the fixing groove, the installation between the button and the mounting ring has a fool-proof effect, ensuring the accuracy of the installation direction.

[0020] Optionally, the distance between the two opposite inner walls of the fixing groove gradually shortens in the direction away from the button.

[0021] By adopting the above technical solution, the fastening effect between the button and the mounting ring is further improved.

[0022] Optionally, a fixing block is provided at one end of the first connecting pin and the second connecting pin facing the button, and the spring includes a fixing portion and a connecting portion connected to each other, and the fixing portion is wrapped around the outside of the corresponding fixing block.

[0023] By adopting the above technical solution, the fixing block and the fixing part are connected by an enclosure method, which is beneficial to installation on the one hand, and improves the structural connection stability on the other hand, and ensures the electrical connection stability between the fixing block and the fixing part.

[0024] Optionally, a through hole is passed through the side wall of the fixing block, and a fixing plate is provided on the side wall of the fixing portion, wherein the lower end of the fixing plate is connected to the fixing portion and the upper end is inclined toward one side of the fixing block.

[0025] By adopting the above technical solution, through the setting of the fixing plate and the through hole, the inclined setting of the fixing plate will not cause any obstruction during the installation process, and can achieve an effective anti-retreat effect after installation, thereby further ensuring the structural connection stability and electrical connection stability of the fixing block and the fixing part.

[0026] Optionally, the connecting portion is inclined toward the center of the PCB board.

[0027] By adopting the above technical solution, the reed can always contact the PCB board, thereby ensuring the electrical connection between the reed and the PCB board.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. In a control circuit, the three-pin rocker switch of the present application is used to control the switching of power supply between a first electrical appliance and a second electrical appliance, or to simultaneously cut off power supply. When power is supplied to either the first electrical appliance or the second electrical appliance, an indicator light illuminates to indicate power is on.

[0030] 2. Based on this structure, this application effectively solves the problem that the socket standard of the three-position rocker switch with light can be consistent with the traditional three-position rocker switch without light, thereby saving social costs and promoting social progress. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the overall structure of a three-legged rocker switch with a light according to an embodiment of the present application;

[0032] Figure 2 yes Figure 1 A partial cross-sectional view of

[0033] Figure 3 Schematic diagram of the explosion of the button, the fixing assembly, and the transmission assembly in the embodiment of the present application;

[0034] Figure 4 This is a schematic diagram of the structure of the embodiment of the present application after the housing is removed;

[0035] Figure 5 1 is an exploded schematic diagram of the first connecting pin and the reed in an embodiment of the present application;

[0036] Figure 6 This is a circuit diagram of an embodiment of the present application during application.

[0037] Explanation of the accompanying drawings: 1. Housing; 2. Button; 21. Fixing bar; 3. First connecting pin; 4. Second connecting pin; 5. Third connecting pin; 6. Fixing assembly; 61. Mounting ring; 611. Fixing groove; 62. Mounting block; 621. Clearance hole; 7. PCB board; 8. Light-emitting module; 81. Indicator light; 82. Resistor; 9. Transmission assembly; 91. Mounting column; 92. Transmission column; 93. Spring; 10. Seesaw contact; 11. Static contact; 12. Fixing block; 13. Reed; 131. Fixing portion; 132. Connecting portion; 133. Fixing plate; 14. Through hole. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1 -Attached Figure 6 , further details of this application are given.

[0039] The present application embodiment discloses a three-legged rocker switch with a light, referring to Figure 1 The illuminated three-pin rocker switch includes a housing 1, with a button 2 pivotally connected to the top of the housing 1. The bottom of the housing 1 is provided with a first connection pin 3, a third connection pin 5, and a second connection pin 4 in sequence along the swing direction of the button 2. The first connection pin 3 and the second connection pin 4 are located on either side of the third connection pin 5. The third connection pin 5 serves as a current input terminal, while the first connection pin 3 and the second connection pin 4 serve as current output terminals.

[0040] Reference Figure 2 、 Figure 3 The lower end of the button 2 is provided with a fixing assembly 6, which includes a mounting ring 61. Fixing strips 21 are integrally formed on opposite sides of the inner wall of the button 2. Fixing grooves 611 are defined on opposite sides of the mounting ring 61. The fixing strips 21 and the fixing grooves 611 engage with each other, forming an interference fit that secures the button 2 and the mounting ring 61. The spacing between the two opposing inner walls of the fixing groove 611 gradually decreases in a direction away from the button 2, providing a good guide for installation.

[0041] Reference Figure 2 、 Figure 3 The fixing assembly 6 also includes a mounting block 62 integrally formed at the lower end of the mounting ring 61. A mounting slot is provided on the side of the mounting block 62 facing the mounting ring 61, into which the PCB 7 is secured. The mounting block 62 also has two clearance holes 621 extending through its lower end, communicating with the mounting slots. The two clearance holes 621 are located on either side of the mounting block 62 along the swing direction of the button 2. A light-emitting module 8 is electrically connected to the upper end of the PCB 7. The light-emitting module 8 includes an indicator light 81 and a resistor 82.

[0042] Reference Figure 2 、 Figure 3 The lower end surface of the mounting block 62 is provided with a transmission assembly 9. The transmission assembly 9 includes a mounting post 91 integrally formed with the lower end surface of the mounting block 62. A sliding hole is axially extended through the mounting post 91. A transmission post 92 is slidably mounted within the sliding hole. The side of the transmission post 92 facing the PCB board 7 is provided with a mounting hole. A spring 93 is disposed within the mounting hole. One end of the spring 93 contacts the lower surface of the PCB board 7, and the other end contacts the bottom wall of the mounting hole.

[0043] Reference Figure 3 、 Figure 4A V-shaped seesaw contact 10 is swingably mounted on the third connecting pin 5, and the bottom end of the transmission column 92 abuts against the upper end surface of the seesaw contact 10. The first and second connecting pins 3 and 4 are both equipped with stationary contacts 11 on the side facing the seesaw contact 10, respectively mating with the two ends of the seesaw contact 10. By toggling the button 2, the transmission column 92 is driven to swing, which in turn drives the seesaw contact 10 to swing, ultimately establishing an electrical connection between the seesaw contact 10 and the stationary contact 11 on the first or second connecting pin 3 or 4.

[0044] Reference Figure 2 、 Figure 4 、 Figure 5 The ends of the first and second connecting pins 3 and 4 facing the PCB are each integrally formed with a fixing block 12. A conductive metal spring 13 is fixedly connected to each fixing block 12. The ends of the two springs 13 pass through corresponding clearance holes 621 and always contact and electrically connect with the PCB 7. The springs 13 include a fixing portion 131 and a connecting portion 132. The fixing portion 131 is enclosed by the outer side of the corresponding fixing block 12. The connecting portions 132 of the two springs 13 are inclined toward the center of the PCB 7.

[0045] In order to improve the connection stability between the fixing part 131 and the fixing block 12, a through hole 14 is passed through the side wall of the fixing block 12, and a fixing plate 133 is formed on the side wall of the fixing part 131 by a stamping process. The lower end of the fixing plate 133 is connected to the fixing part 131, and its upper end is inclined toward one side of the fixing block 12, and the fixing plate 133 is located in the through hole 14.

[0046] Reference Figure 2 、 Figure 6 A is a three-pin rocker switch of the present application, electrically connected to a first electrical appliance and a second electrical appliance. Terminal 1 of switch S corresponds to third connection pin 5, terminal 2 of switch S corresponds to first connection pin 3, terminal 3 of switch S corresponds to second connection pin 4, lamp LAMP corresponds to indicator light 81, and resistor R corresponds to resistor 82. Terminal 1 of switch S, i.e., third connection pin 5, is connected to the live wire L in the circuit, and the second and third electrical appliances are connected to the neutral wire N of the power supply. The resistance of the first electrical appliance + resistor R > the resistance of the second electrical appliance, and the resistance of the second electrical appliance + resistor R > the resistance of the first electrical appliance.

[0047] The implementation principle of the embodiment of this application is:

[0048] When the button 2 is in a horizontal state, since both ends of the rocker contact 10 are not connected to the two static contacts 11 , the circuit is in an open state, and the first electrical appliance, the second electrical appliance and the indicator light 81 are not working.

[0049] When the toggle button 2 is activated, the transmission assembly 9 and the rocker contact 10 swing, causing one end of the rocker contact 10 to contact the stationary contact 11 on the first connection pin 3, thereby forming an electrical connection. Current is then input from the third connection pin 5 and output from the first connection pin 3 through the rocker contact 10, thereby energizing and activating the first electrical appliance. Due to the arrangement of the two metal reeds 13, the reeds 13 are also conductive, and the resistor 82 on the PCB 7 converts the current flowing through the PCB 7 into a microcurrent, illuminating the light-emitting module 8. However, after the microcurrent is output from the second connection pin 4, it is too small to provide the power required to activate the second electrical appliance, and therefore the second appliance cannot be activated.

[0050] Similarly, when one end of the rocker contact 10 contacts the static contact 11 on the second connection pin 4 to form an electrical connection, the second electrical appliance is enabled, while the first electrical appliance cannot be enabled, and the light emitting module 8 is also lit.

[0051] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. A three-legged rocker switch with a light, comprising a housing (1), a button (2) hinged to the top of the housing (1), and a first connecting pin (3), a third connecting pin (5) and a second connecting pin (4) sequentially inserted into the bottom of the housing (1), wherein the first connecting pin (3) and the second connecting pin (4) are respectively located on both sides of the third connecting pin (5), a transmission assembly (9) is provided on the side of the button (2) facing the bottom of the housing (1), a rocker contact (10) linked to the transmission assembly (9) is swingably provided on the third connecting pin (5), and a static contact (11) capable of cooperating with the end of the rocker contact (10) is respectively provided on the first connecting pin (3) and the second connecting pin (4), characterized in that: A fixing assembly (6) is provided between the button (2) and the transmission assembly (9), a PCB board (7) is provided in the fixing assembly (6), the PCB board (7) and the transmission assembly (9) are connected and insulated from each other, a light-emitting module (8) is provided on the PCB board (7), the light-emitting module (8) comprises an indicator light (81) and a resistor (82), a metal spring (13) is provided at one end of each of the first connecting pin (3) and the second connecting pin (4) facing the PCB board (7), the ends of the two springs (13) always contact the PCB board (7) and form an electrical connection, the resistor (82) causes the current flowing through the PCB board (7) to become a micro-current and illuminate the light-emitting module (8), and the micro-current cannot provide the power required for the electrical appliance to be activated.

2. A three-legged rocker switch with light according to claim 1, characterized in that: The fixing assembly (6) includes a mounting block (62), and two clearance holes (621) are provided on a side of the mounting block (62) facing the transmission assembly (9). The two springs (13) respectively pass through the corresponding clearance holes (621) and contact the side wall of the PCB board (7).

3. A three-legged rocker switch with light according to claim 2, characterized in that: A mounting ring (61) is provided on the side of the mounting block (62) facing the button (2), and the mounting ring (61) is interference-fitted with the inner wall of the button (2).

4. A three-legged rocker switch with light according to claim 3, characterized in that: Two opposite sides of the inner wall of the button (2) are provided with fixing strips (21), and two opposite sides of the mounting ring (61) are provided with fixing grooves (611), and the fixing strips (21) and the fixing grooves (611) are plugged into each other to form an interference fit.

5. The three-legged rocker switch with light according to claim 4, characterized in that: The distance between the two opposing inner walls of the fixing groove (611) gradually shortens in a direction away from the button (2).

6. The three-legged rocker switch with light according to claim 1, characterized in that: A fixing block (12) is provided at one end of each of the first connecting pin (3) and the second connecting pin (4) facing the button (2); the spring (13) comprises a fixing portion (131) and a connecting portion (132) connected to each other; the fixing portion (131) is enclosed on the outside of the corresponding fixing block (12).

7. The three-legged rocker switch with light according to claim 6, characterized in that: A through hole (14) is passed through the side wall of the fixing block (12), and a fixing piece (133) is provided on the side wall of the fixing portion (131). The lower end of the fixing piece (133) is connected to the fixing portion (131), and the upper end is inclined toward one side of the fixing block (12).

8. The three-legged rocker switch with light according to claim 6, characterized in that: The connecting portion (132) is inclined toward the center of the PCB board (7).

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