A three - gear switch with an indicator light

Abstract

The present invention discloses a three - gear switch with an indicator light. By arranging a contact piece on the transmission component and a power - off notch on the contact piece, when the button is rotated to open or close, it will drive the transmission component and its contact piece to deflect together, so that the conductive part slides and switches between the contact piece and the power - off notch. According to the fact that the indicator light is electrically connected to the contact piece and the rocker contact, it can be realized that when the button is opened or closed, the indicator light can be synchronously lit or extinguished, thereby reminding the operator to observe whether the switch is in the working state. The advantage of this structural design is that only a single indicator light is needed to realize the reminder function when the three - gear switch is opened and closed, which simplifies the installation circuit and structure, reduces the installation parts, occupies a small space inside the switch, so that the overall volume of the three - gear switch can be made smaller, which is conducive to the development of the product towards the miniaturization trend.

Description

Technical Field

[0001] The present invention relates to the technical field of switches, and particularly to a three - gear switch with an indicator light. Background Art

[0002] A switch is an element with different functions for connecting and disconnecting an electric circuit, and it also has the function of actively preventing electrical fires. Switches are applied in various electronic devices and household appliances. A rocker switch is also called a toggle switch. Its structure is the same as that of a knife - handle switch, except that the knob is replaced with a rocker shape. Rocker switches are commonly used as power switches for electronic devices. Its contacts are divided into single - pole single - throw and double - pole double - throw, etc. Some switches also have indicator lights.

[0003] Chinese Patent Document CN205122457U discloses a three - gear switch, which includes a housing, a control component, a rocker, and a conductive pin group. The conductive pin group includes a first conductive group, an intermediate conductive group, and a second conductive group. The control component includes a handle, a guide sleeve, and a control spring. The handle and the guide sleeve are elastically connected through the control spring. The other end of the guide sleeve relative to the handle abuts against the rocker, and the control spring is electrically connected to the rocker. The first conductive group is electrically connected to a first connecting piece. The handle is provided with a first indicator light and a first elastic conductive member arranged between the first connecting piece and the first indicator light. One end of the first indicator light is electrically connected to the first elastic conductive member, and the other end is electrically connected to the control spring. The second conductive group is electrically connected to a second connecting piece. The handle is provided with a second elastic conductive member corresponding to the second conductive group. The handle is provided with a second indicator light. One end of the second indicator light is electrically connected to the second elastic conductive member, and the other end is electrically connected to the control spring. Then, by operating the handle, the rocker is made to connect the first conductive group and the intermediate conductive group or connect the second conductive group and the intermediate conductive group, so that the first indicator light or the second indicator light is lit.

[0004] It can be seen from the structure of the above - mentioned three - gear switch that the gear switching of the three - gear switch is mainly realized through the switching control of the first indicator light and the second indicator light. The first indicator light forms a control circuit through the first elastic conductive member, the first connecting piece, the control spring and the first conductive group. The second indicator light forms a control circuit through the second elastic conductive member, the second connecting piece, the control spring and the second conductive group. To sum up, it can be seen that the installation structures of these two groups of indicator lights are relatively complex, there are many installation parts, and the circuit control structure is set complexly, occupying a large space inside the switch. As a result, the volume of the existing three - gear switches is generally relatively large, and the production cost is also high, which is not conducive to the production and assembly of products and the development trend towards miniaturization. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problem that the three-position switch in the prior art needs to be provided with two groups of indicator lights to realize the function of lighting the indicator lights when the switch is closed, many parts are installed, and the circuit control structure is complex to set up, and a large space is occupied inside the switch. Thus, a three-position switch is provided in which only one indicator light is set up to realize the function of lighting the indicator light when the switch is closed, fewer parts are installed, the circuit control structure is simple, and the space occupied inside the switch is small.

[0006] The present invention provides a three-position switch with an indicator light, comprising a housing and a button rotatably arranged on the housing, wherein a seesaw contact, two stationary contacts and a transmission component connecting the seesaw contact and the button are arranged in the housing, wherein the transmission component is arranged in linkage with the button, and the button drives the seesaw contact to reciprocate between the two stationary contacts through the transmission component, and has a closed position in which the seesaw contact is driven to separate from the two stationary contacts, and an open position in which the seesaw contact is driven to contact one of the two stationary contacts, and further comprises:

[0007] The control structure comprises a contact piece arranged on the transmission component, a power-off notch arranged in the middle of the contact piece, and a conductive member arranged in the housing and slidingly switching between the contact piece and the power-off notch, wherein the button drives the contact piece to deflect and causes the conductive member to slide and contact with the contact piece when in the open position, and drives the contact piece to deflect and causes the conductive member to slide and contact with the power-off notch when in the closed position;

[0008] The indicator light is arranged between the transmission component and the button, and is electrically connected to the contact piece and the rocker contact respectively.

[0009] In the above-mentioned three-speed switch with indicator light, the conductive member is arranged on one side of the rotation plane of the button and the transmission component, and one end thereof extends out of the bottom of the shell.

[0010] In the above-mentioned three-speed switch with indicator light, the transmission component includes a transmission seat arranged in linkage with the button, and a drive rod assembly arranged at the bottom of the transmission seat, and the button drives the drive rod assembly to slide and press against the rocker contact through the transmission seat.

[0011] In the above-mentioned three-speed switch with indicator light, a mounting platform opposite to the conductive member is provided on the transmission seat, a mounting gap is provided between the back side of the mounting platform and the transmission seat, and two side edges of the contact piece are extended toward one side of the mounting gap to form two bent portions, and the two bent portions can be bent to abut against the back side of the mounting platform.

[0012] In the above three - position switch with an indicator light, the indicator light includes a first conductive pin electrically connected to the rocker contact through the driving rod assembly, and a second conductive pin connected to the contact piece. An opening groove is provided on the front surface of the mounting platform. The second conductive pin extends and is inserted into the opening groove and is pressed and covered when the contact piece is mounted on the mounting platform.

[0013] In the above three - position switch with an indicator light, the power - off notch is an opening structure provided in the middle of the contact piece, and the two sides of the opening structure are the two contact surfaces where the contact piece contacts the conductive part.

[0014] In the above three - position switch with an indicator light, a boss extending into the power - off notch is provided on the mounting platform, and when the contact piece is snap - fitted on the mounting platform, it is flush with the surface of the boss.

[0015] In the above three - position switch with an indicator light, the other end of the conductive part is provided with an arc - shaped contact point, and the arc - shaped contact point slides and switches between the contact surface or the surface of the boss.

[0016] In the above three - position switch with an indicator light, the driving rod assembly includes a mounting cavity provided at the bottom of the transmission seat, a driving rod and a spring penetrating through the mounting cavity. A spring mounting groove is provided in the driving rod. The two ends of the spring respectively abut against the mounting cavity and the spring mounting groove. The spring applies a biasing force to the driving rod that abuts against the rocker contact, and the first conductive pin extends into the mounting cavity and abuts against one end of the spring.

[0017] In the above three - position switch with an indicator light, the rocker contact has a V - shaped structure, and two limiting rotating shafts are provided at the two length ends of the V - shaped tip of the rocker contact. Two limiting plates are vertically provided at the bottom of the housing corresponding to the limiting rotating shafts. Two strip - shaped sliding grooves are respectively provided oppositely on the two limiting plates, and the two limiting rotating shafts are rotatably restricted in the two strip - shaped sliding grooves.

[0018] The technical solution of the present invention has the following advantages compared with the prior art:

[0019] 1. The three - position switch with an indicator light provided by the present invention has a contact piece arranged on the transmission component and a power - off notch arranged on the contact piece. When the button is rotated to be turned on or off, it drives the transmission component and its contact piece to deflect together, so that the conductive part slides and switches between the contact piece and the power - off notch. According to the fact that the indicator light is electrically connected to the contact piece and the rocker contact, it is realized that when the button is turned on or off, the indicator light can be synchronously lit or extinguished, thereby reminding the operator to observe whether the switch is in the working state. The advantage of this structural design is that only a single indicator light is needed to realize the reminder function when the three - position switch is opened and closed, thus avoiding the existing method of setting multiple indicator light circuits, simplifying the installation circuit and structure, reducing the installation parts, occupying less space inside the switch, so that the overall volume of the three - position switch can be made smaller, which is beneficial to the development of the product towards the miniaturization trend.

[0020] 2. The three - position switch with an indicator light provided by the present invention provides an installation position for the contact piece by setting an installation platform. At the same time, there is an installation gap between the installation platform and the transmission seat, which facilitates the bending of the bending part and enables the contact piece to be independently installed on the installation platform without interfering with the drive rod assembly, improving the safety during product use.

[0021] 3. For the three - position switch with an indicator light provided by the present invention, first fix the second conductive pin in the opening groove, and then bend and fix the contact piece on the installation platform, so that the contact piece can be electrically connected to the second conductive pin without welding fixation, reducing the operation steps, being convenient for installation, covering the position of the second conductive pin with the contact piece, having close contact and no exposure, being safe and reliable, which is beneficial to increasing the contact area between the second conductive pin and the contact piece and having good conductive effect.

[0022] 4. The three - position switch with an indicator light provided by the present invention has the contact piece flush with the surface of the boss, reducing the resistance when the conductive part slides and switches between the contact piece and the power - off notch, and improving the switching speed.

[0023] 5. For the three - position switch with an indicator light provided by the present invention, since the conductive part is an elastic metal sheet, under the action of its own elastic force, the arc - shaped contact closely adheres to the contact surface or the boss. The advantage of the arc - shaped design of the arc - shaped contact is that it can reduce the resistance when the conductive part switches between the on - position and the off - position, reduce the contact area between the conductive part and the contact piece, and avoid the situation that when the button is in the off - position, the conductive part touches both the contact piece and the power - off notch at the same time, resulting in the indicator light circuit being unable to be disconnected and always being in the constant - on state.

[0024] 6. The three-speed switch with an indicator light provided by the present invention cooperates with the limit shaft and the limit plate so that when the seesaw contact rotates, the limit shaft slides up and down in the strip-shaped slide groove, thereby preventing the seesaw contact from deviating from the preset rotation track when rotating, thereby improving the safety of the product when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the present invention 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 A schematic diagram of the structure of a three-speed switch with an indicator light provided by the present invention;

[0027] Figure 2 A top view of the three-position switch with an indicator light provided by the present invention with the button hidden;

[0028] Figure 3 for Figure 2 AA section view shown;

[0029] Figure 4 This is a schematic diagram of the structure of the three-speed switch with an indicator light provided by the present invention after the housing is hidden;

[0030] Figure 5 for Figure 4 A schematic diagram of the local enlarged structure of part C shown;

[0031] Figure 6 for Figure 3 The schematic diagram of the structure in which the indicator light is installed on the transmission seat;

[0032] Figure 7 This is a schematic diagram of the structure of the three-speed switch with an indicator light provided by the present invention, with the button, transmission seat and indicator light hidden;

[0033] Description of reference numerals:

[0034] 1-housing; 11-button; 12-limiting plate; 13-strip slide; 14-limiting step;

[0035] 2-rocker contact; 21-moving contact; 22-middle pin; 23-rotation groove; 24-V-shaped tip; 25-limiting shaft;

[0036] 3-static contact;

[0037] 4 - Transmission component; 41 - Transmission base; 42 - Installation platform; 43 - Installation gap; 44 - Opening groove; 45 - Boss; 46 - Installation cavity; 47 - Drive rod; 48 - Spring;

[0038] 51 - Contact piece; 52 - Power-off notch; 53 - Conductive part; 54 - Bending part; 55 - Contact surface; 56 - Arc-shaped contact point;

[0039] 6 - Indicator light; 61 - First conductive pin; 62 - Second conductive pin. Specific embodiments

[0040] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0041] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It 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 a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0042] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connected" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0043] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0044] Embodiment 1

[0045] The following is a specific description of this embodiment with reference to the accompanying drawings:

[0046] The present invention provides as Figure 1-7A three-position switch with an indicator light shown in the figure comprises a housing 1 and a button 11 which is rotatably arranged on the housing 1, wherein a seesaw contact 2, two stationary contacts 3 and a transmission component 4 connecting the seesaw contact 2 and the button 11 are arranged in the housing 1, wherein the transmission component 4 is arranged in linkage with the button 11, wherein the button 11 drives the seesaw contact 2 to reciprocate between the two stationary contacts 3 through the transmission component 4, and has a closed position in which the seesaw contact 2 is driven to separate from the two stationary contacts 3, and an open position in which the seesaw contact 2 is driven to contact one of the two stationary contacts 3, and further comprises:

[0047] The control structure includes a contact piece 51 disposed on the transmission component 4, a power-off notch 52 disposed in the middle of the contact piece 51, and a conductive member 53 disposed in the housing 1 and slidingly switching between the contact piece 51 and the power-off notch 52. The button 11 drives the contact piece 51 to deflect and causes the conductive member 53 to slide and contact the contact piece 51 when in the open position, and drives the contact piece 51 to deflect and causes the conductive member 53 to slide and contact the power-off notch 52 when in the closed position.

[0048] The indicator light 6 is arranged between the transmission component 4 and the button 11, and is electrically connected to the contact piece 51 and the rocker contact 2 respectively.

[0049] The above implementation is the core technical solution of this embodiment. By setting a contact piece 51 on the transmission component 4 and a power-off notch 52 on the contact piece 51, when the button 11 is rotated to open or close, the transmission component 4 and its contact piece 51 will be deflected together, so that the conductive member 53 slides and switches between the contact piece 51 and the power-off notch 52, and the indicator light 6 is electrically connected to the contact piece 51 and the rocker contact 2, so that the button 11 can control the indicator light 6 to light up or go out synchronously when it is opened or closed, thereby reminding the operator to observe whether the switch is in a working state. The advantage of this structural design is that only a single indicator light needs to be set up to realize the reminder function of the three-speed switch when it is opened and closed, thereby avoiding the existing method of setting multiple indicator light lines, simplifying the installation line and structure, reducing the installation components, and occupying a small space inside the switch, so that the overall volume of the three-speed switch can be made smaller, which is conducive to the development of the product towards miniaturization. In this embodiment, the button is made of transparent material.

[0050] like Figure 1 and Figure 4As shown, the conductive member 53 is arranged on one side of the rotation plane of the button 11 and the transmission component 4, and one end thereof extends out of the bottom of the housing 1. With this structural arrangement, the sliding contact cooperation between the contact piece 51 and the conductive member 53 is achieved through the reciprocating rotation of the transmission component 4. When the button 11 is in a horizontally centered position relative to the housing 1 without rotating, as shown in FIG. Figure 1 Position, that is, the button 11 is in the closed position, at this time, the conductive member 53 contacts the power-off notch 52 of the contact piece 51, thereby keeping the conductive member 53 and the contact piece 51 in the power-off state, and the indicator light 6 is not on; when the button 11 rotates to the left or right by a certain angle relative to the housing 1, the button 11 is in the open position, at this time, the contact piece 51 will contact the conductive member 53 after the transmission component 4 deflects, thereby connecting the power circuit between the rocker contact 2, the indicator light 6, the contact piece 51 and the conductive member 53. In summary, the button 11 has three gears that can be controlled, and the working state of the three-gear switch can be presented by only turning on and off a single indicator light 6.

[0051] As a specific structural setting, the transmission component 4 includes a transmission seat 41 that is linked to the button 11, and a drive rod assembly that is arranged at the bottom of the transmission seat 41. The button 11 drives the drive rod assembly to slide and press against the rocker contact 2 through the transmission seat 41, so that the rocker contact 2 is forced to rotate and can cooperate with one of the two stationary contacts 3. The transmission process is simple and reliable.

[0052] like Figure 5 As shown, the transmission seat 41 is provided with a mounting platform 42 opposite to the conductive member 53, providing a mounting position for the contact piece 51, and a mounting gap 43 is provided between the back side of the mounting platform 42 and the transmission seat 41, and two side edges of the contact piece 51 are extended toward one side of the mounting gap 43 to form two bent portions 54. With this structural arrangement, the contact piece 51 can be reliably fixed on the mounting platform 42 by simply bending the two bent portions 54 to abut against the back side of the mounting platform 42, without the need for any fasteners for installation, and the installation structure is simple, and the installation is convenient and quick, thereby improving the installation efficiency.

[0053] Combine the following Figure 2-6 The specific setting method of the indicator light 6 is described in detail:

[0054] like Figure 2 and Figure 6As shown, the indicating lamp 6 includes a first conductive pin 61 electrically connected to the rocker contact 2 through the driving rod assembly, and a second conductive pin 62 connected to the contact piece 51. An opening groove 44 is provided on the front surface of the mounting platform 42. The second conductive pin 62 extends and is inserted into the opening groove 44. With this structural arrangement, the opening groove 44 plays a pre-positioning role for the second conductive pin 62, and when the contact piece 51 is mounted on the mounting platform 42, the second conductive pin 62 is pressed and covered, thereby realizing the electrical connection between the contact piece 51 and the second conductive pin 62 without welding and fixing, reducing the operation steps, being convenient for installation, and enabling the contact piece 51 to cover the position of the second conductive pin 62, with close contact and no exposure, being safe and reliable, which is beneficial to increasing the contact surface between the second conductive pin 62 and the contact piece 51 and having good conductive effect.

[0055] As a specific structural arrangement, the power-off notch 52 is an opening structure provided in the middle of the contact piece 51. The two sides of the opening structure are two contact surfaces 55 where the contact piece 51 contacts the conductive member 53. A boss 45 extending into the power-off notch 52 is provided on the mounting platform 42. When the contact piece 51 is snap-fitted on the mounting platform 42, it is flush with the surface of the boss 45 to ensure a flat contact surface for the conductive member 53 to slide between the contact piece 51 and the power-off notch 52, reducing the resistance when the conductive member 53 slides and switches between the contact piece 51 and the power-off notch 52 and improving the switching speed.

[0056] As Figure 5 shown, the other end of the conductive member 53 is provided with an arc-shaped contact point 56. The arc-shaped contact point 56 slides and switches between the contact surface 55 or the surface of the boss 45. Since the conductive member 53 is an elastic metal sheet, under the action of its own elastic force, the arc-shaped contact point 56 is closely attached to the contact surface 55 or the boss 45. With this design of the arc-shaped contact point 56 structure, the resistance of the conductive member 53 sliding and switching between the contact piece 51 and the power-off notch 52 can be reduced, and the contact area with the conductive member 53 and the contact piece 51 is effectively reduced, avoiding the situation that the conductive member 53 touches both the contact piece 51 and the power-off notch 52 when the button 11 is in the closed position, resulting in the indicating lamp 6 circuit being unable to be disconnected and always remaining in the constant-on state.

[0057] The following Figure 3 makes a detailed description of the specific setting method of the driving rod assembly:

[0058] The driving rod assembly includes an installation cavity 46 provided at the bottom of the transmission seat 41, a driving rod 47 and a spring 48 that penetrate and are arranged in the installation cavity 46. A spring installation groove is provided in the driving rod 47. Two ends of the spring 48 respectively abut against the installation cavity 46 and the spring installation groove. The driving rod 47 and the spring 48 are respectively made of metal. The spring 48 applies a biasing force to the driving rod 47 that abuts against the rocker contact 2, so that during the process of the driving rod 47 rotating with the button 11, it always maintains reliable contact with the rocker contact 2, so that the driving rod 47 can drive the rocker contact 2 to rotate, ensuring the reliability of the transmission process.

[0059] As shown in Figure 3 and Figure 6 the figure, the first conductive pin 61 extends into the installation cavity 46 and abuts against one end of the spring 48, so as to conduct electricity through the spring 48 and the driving rod 47, and electrically connect the first conductive pin 61 to the rocker contact 2.

[0060] As a specific structural setting, the rocker contact 2 is in a V-shaped structure. Two moving contacts 21 are provided corresponding to the two static contacts 3 at its two ends. An intermediate pin 22 connecting the rocker contact 2 is provided at the bottom of the housing 1. A rotating groove 23 is provided at the top of the intermediate pin 22 and is rotationally connected to the V-shaped tip 24 of the rocker contact 2. The two static contacts 3 respectively include two pins that extend out of the bottom of the housing 1 relatively. Through the rotating groove 23 of the intermediate pin 22, when the rocker contact 2 tilts and rotates to both sides, it always maintains reliable contact with one side wall of the rotating groove 23, so that the intermediate pin 22 is electrically connected to the static contact 3 through the rocker contact 2. In this embodiment, the intermediate pin 22 is electrically connected to the live wire in the circuit.

[0061] As shown in Figure 4 and Figure 7 the figure, two limiting rotating shafts 25 are provided at the two length ends of the V-shaped tip 24. Two limiting plates 12 are vertically provided at the bottom of the housing 1 corresponding to the limiting rotating shafts 25. Two strip-shaped sliding grooves 13 are respectively provided oppositely on the two limiting plates 12. The two limiting rotating shafts 25 are rotatably limited in the two strip-shaped sliding grooves 13. Through the mutual cooperation of the limiting rotating shafts 25 and the limiting plates 12, when the rocker contact 2 rotates, the limiting rotating shafts 25 slide up and down in the strip-shaped sliding grooves 13, preventing the rocker contact 2 from deviating from the preset rotation track during rotation and improving the safety of the product during use.

[0062] Combined with Figure 2-3As shown, limiting steps 14 that cooperate with and abut against the button 11 are provided on both sides of the housing 1. The rotation amplitude of the button 11 and the transmission base 41 is limited by the limiting steps 14, preventing the situation where the driving rod 47 disengages from the rocker contact 2 due to excessive rotation amplitude.

[0063] The working principle of the three - gear switch with an indicator light in this embodiment will be described below:

[0064] When the button 11 is in a horizontal centered position without rotating relative to the housing 1, referring to Figure 1 and Figure 3 , that is, when the button 11 is in the closed position, the driving rod 47 at the bottom of the transmission base 41 is located within the V - shaped tip 24 of the rocker contact 2. The rocker contact 2 is in a separated state from the two static contacts 3 respectively. At the same time, the conductive member 53 abuts against the boss 45 extending into the power - off notch 52, keeping the conductive member 53 and the contact piece 51 in a power - off state. At this time, the indicator light 6 is not lit.

[0065] When the button 11 rotates a certain angle to the left or right relative to the housing 1 and abuts against the limiting step 14, that is, when the button 11 is in the open position, the button 11 drives the transmission base 41 to rotate. The transmission base 41 presses the rocker contact 2 through the driving rod 47, causing the rocker contact 2 to deflect and contact one of the two static contacts 3, for controlling two working gears of the switch. At the same time, the contact surface 55 of the contact piece 51 will contact the conductive member 53 after rotating with the transmission base 41, thus connecting the power - on loop among the rocker contact 2, the indicator light 6, the contact piece 51 and the conductive member 53. At this time, the indicator light 6 is lit.

[0066] Obviously, the above - mentioned embodiments are merely examples for clear illustration and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. A three - gear switch with an indicator light, comprising a housing (1) and a button (11) which is deflectably arranged in the housing (1). A rocker contact (2), two static contacts (3) and a transmission component (4) connecting the rocker contact (2) and the button (11) are arranged in the housing (1). The transmission component (4) is linked with the button (11). The button (11) drives the rocker contact (2) to rotate reciprocally between the two static contacts (3) through the transmission component (4), and has a closed position where the rocker contact (2) is driven to separate from the two static contacts (3), and an open position where the rocker contact (2) is driven to contact one of the two static contacts (3). Characterized in that , further comprising: A control structure, including a contact piece (51) arranged on the transmission component (4), a power - off notch (52) arranged at the middle position of the contact piece (51), and a conductive part (53) arranged in the housing (1) and sliding and switching between the contact piece (51) and the power - off notch (52). When the button (11) is in the open position, it drives the contact piece (51) to deflect and makes the conductive part (53) slide and contact the contact piece (51), and when in the closed position, it drives the contact piece (51) to deflect and makes the conductive part (53) slide and contact the power - off notch (52); An indicator light (6), arranged between the transmission component (4) and the button (11), and electrically connected to the contact piece (51) and the rocker contact (2) respectively.

2. The three - gear switch with an indicator light according to claim 1, Characterized in that : The conductive part (53) is arranged on one side of the rotation plane of the button (11) and the transmission component (4), and one end of it extends out of the bottom of the housing (1).

3. The three - gear switch with an indicator light according to claim 2, Characterized in that : The transmission component (4) includes a transmission seat (41) linked with the button (11), and a drive rod assembly arranged at the bottom of the transmission seat (41). The button (11) drives the drive rod assembly to slide and press against the rocker contact (2) through the transmission seat (41).

4. The three - gear switch with an indicator light according to claim 3, Characterized in that : An installation platform (42) opposite to the conductive part (53) is arranged on the transmission seat (41). An installation gap (43) is arranged between the back surface of the installation platform (42) and the transmission seat (41). Two bending parts (54) are formed by extending the two side edges of the contact piece (51) towards the side of the installation gap (43), and the two bending parts (54) can be bent to abut against the back surface of the installation platform (42).

5. The three - gear switch with an indicator light according to claim 4, Characterized in that : The indicating lamp (6) includes a first conductive pin (61) electrically connected to the rocker contact (2) through the driving rod assembly, and a second conductive pin (62) connected to the contact piece (51). An opening groove (44) is provided on the front surface of the mounting platform (42). The second conductive pin (62) extends and is inserted into the opening groove (44), and is pressed and covered when the contact piece (51) is mounted on the mounting platform (42).

6. The three - position switch with an indicating lamp according to claim 4, characterized in that : The power - off notch (52) is an opening structure provided in the middle of the contact piece (51). The two sides of the opening structure are two contact surfaces (55) where the contact piece (51) contacts the conductive member (53).

7. The three - position switch with an indicating lamp according to claim 6, characterized in that : A boss (45) extending into the power - off notch (52) is provided on the mounting platform (42). When the contact piece (51) is snap - fitted on the mounting platform (42), it is flush with the surface of the boss (45).

8. The three - position switch with an indicating lamp according to claim 7, characterized in that : The other end of the conductive member (53) is provided with an arc - shaped contact point (56). The arc - shaped contact point (56) slides and switches between the surfaces of the contact surface (55) or the boss (45).

9. The three - position switch with an indicating lamp according to claim 5, characterized in that : The driving rod assembly includes a mounting cavity (46) provided at the bottom of the transmission seat (41), a driving rod (47) and a spring (48) penetrating and arranged in the mounting cavity (46). A spring mounting groove is provided in the driving rod (47). The two ends of the spring (48) are respectively abutted against the mounting cavity (46) and the spring mounting groove. The spring (48) applies a biasing force to the driving rod (47) that abuts against the rocker contact (2). The first conductive pin (61) extends into the mounting cavity (46) and is abutted against one end of the spring (48).

10. The three - position switch with an indicating lamp according to claim 9, characterized in that : The rocker contact (2) has a V - shaped structure, and two limiting rotating shafts (25) are provided at the two length ends of the V - shaped tip (24) of the rocker contact (2). Two limiting plates (12) are vertically provided at the bottom of the housing (1) corresponding to the limiting rotating shafts (25). Two strip - shaped sliding grooves (13) are respectively provided opposite to each other on the two limiting plates (12). The two limiting rotating shafts (25) are rotatably restricted in the two strip - shaped sliding grooves (13).

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